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Diffstat (limited to 'stb__image_8h_source.html')
| -rw-r--r-- | stb__image_8h_source.html | 14994 |
1 files changed, 7972 insertions, 7022 deletions
diff --git a/stb__image_8h_source.html b/stb__image_8h_source.html index 18aab9c3..8152bc3b 100644 --- a/stb__image_8h_source.html +++ b/stb__image_8h_source.html @@ -8,13 +8,6 @@ <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> -<link href="navtree.css" rel="stylesheet" type="text/css"/> -<script type="text/javascript" src="resize.js"></script> -<script type="text/javascript" src="navtree.js"></script> -<script type="text/javascript"> - $(document).ready(initResizable); - $(window).load(resizeHeight); -</script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> @@ -28,6 +21,7 @@ <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> + <td id="projectlogo"><img alt="Logo" src="yage.png"/></td> <td style="padding-left: 0.5em;"> <div id="projectname">YAGE  <span id="projectnumber">v0.1.4.0</span> @@ -74,21 +68,6 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search'); <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> -</div><!-- top --> -<div id="side-nav" class="ui-resizable side-nav-resizable"> - <div id="nav-tree"> - <div id="nav-tree-contents"> - <div id="nav-sync" class="sync"></div> - </div> - </div> - <div id="splitbar" style="-moz-user-select:none;" - class="ui-resizable-handle"> - </div> -</div> -<script type="text/javascript"> -$(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); -</script> -<div id="doc-content"> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" @@ -103,72 +82,77 @@ $(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); </iframe> </div> +<div id="nav-path" class="navpath"> + <ul> +<li class="navelem"><a class="el" href="dir_0a5be4b85c8e2c05f7a9f5a803f53125.html">yage</a></li><li class="navelem"><a class="el" href="dir_11841e5da2063fc5766a682aee38e289.html">core</a></li> </ul> +</div> +</div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">stb_image.h</div> </div> </div><!--header--> <div class="contents"> -<a href="stb__image_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* stb_image - v2.16 - public domain image loader - http://nothings.org/stb_image.h</span></div> -<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> no warranty implied; use at your own risk</span></div> +<a href="stb__image_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* stb_image - v2.16 - public domain image loader -</span></div> +<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">http://nothings.org/stb_image.h no warranty implied; use at your own risk</span></div> <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"></span></div> <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Do this:</span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> #define STB_IMAGE_IMPLEMENTATION</span></div> -<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> before you include this file in *one* C or C++ file to create the implementation.</span></div> -<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div> -<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> // i.e. it should look like this:</span></div> -<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> #include ...</span></div> +<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> before you include this file in *one* C or C++ file to create the</span></div> +<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">implementation.</span></div> +<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"></span></div> +<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> // i.e. it should look like this:</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> #include ...</span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> #include ...</span></div> -<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> #define STB_IMAGE_IMPLEMENTATION</span></div> -<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> #include "stb_image.h"</span></div> -<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"></span></div> -<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> You can #define STBI_ASSERT(x) before the #include to avoid using assert.h.</span></div> -<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free</span></div> -<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"></span></div> -<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span></div> -<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> QUICK NOTES:</span></div> -<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> Primarily of interest to game developers and other people who can</span></div> -<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> avoid problematic images and only need the trivial interface</span></div> -<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span></div> -<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib)</span></div> -<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> PNG 1/2/4/8/16-bit-per-channel</span></div> -<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"></span></div> -<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> TGA (not sure what subset, if a subset)</span></div> -<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> BMP non-1bpp, non-RLE</span></div> -<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> PSD (composited view only, no extra channels, 8/16 bit-per-channel)</span></div> -<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"></span></div> -<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> GIF (*comp always reports as 4-channel)</span></div> -<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> HDR (radiance rgbE format)</span></div> -<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> PIC (Softimage PIC)</span></div> -<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> PNM (PPM and PGM binary only)</span></div> -<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"></span></div> -<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> Animated GIF still needs a proper API, but here's one way to do it:</span></div> -<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> http://gist.github.com/urraka/685d9a6340b26b830d49</span></div> -<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"></span></div> -<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> - decode from memory or through FILE (define STBI_NO_STDIO to remove code)</span></div> -<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> - decode from arbitrary I/O callbacks</span></div> -<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON)</span></div> -<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"></span></div> -<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> Full documentation under "DOCUMENTATION" below.</span></div> +<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> #include ...</span></div> +<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> #define STB_IMAGE_IMPLEMENTATION</span></div> +<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> #include "stb_image.h"</span></div> +<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span></div> +<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> You can #define STBI_ASSERT(x) before the #include to avoid using assert.h.</span></div> +<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using</span></div> +<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">malloc,realloc,free</span></div> +<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"></span></div> +<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"></span></div> +<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> QUICK NOTES:</span></div> +<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> Primarily of interest to game developers and other people who can</span></div> +<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> avoid problematic images and only need the trivial interface</span></div> +<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"></span></div> +<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> JPEG baseline & progressive (12 bpc/arithmetic not supported, same as</span></div> +<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">stock IJG lib) PNG 1/2/4/8/16-bit-per-channel</span></div> +<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"></span></div> +<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> TGA (not sure what subset, if a subset)</span></div> +<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> BMP non-1bpp, non-RLE</span></div> +<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> PSD (composited view only, no extra channels, 8/16 bit-per-channel)</span></div> +<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"></span></div> +<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> GIF (*comp always reports as 4-channel)</span></div> +<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> HDR (radiance rgbE format)</span></div> +<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> PIC (Softimage PIC)</span></div> +<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> PNM (PPM and PGM binary only)</span></div> +<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"></span></div> +<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> Animated GIF still needs a proper API, but here's one way to do it:</span></div> +<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> http://gist.github.com/urraka/685d9a6340b26b830d49</span></div> +<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"></span></div> +<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> - decode from memory or through FILE (define STBI_NO_STDIO to remove code)</span></div> +<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> - decode from arbitrary I/O callbacks</span></div> +<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON)</span></div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"></span></div> -<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span></div> -<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">LICENSE</span></div> +<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> Full documentation under "DOCUMENTATION" below.</span></div> +<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"></span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"></span></div> -<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> See end of file for license information.</span></div> +<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">LICENSE</span></div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"></span></div> -<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">RECENT REVISION HISTORY:</span></div> +<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> See end of file for license information.</span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"></span></div> -<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes</span></div> -<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC</span></div> -<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs</span></div> -<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes</span></div> -<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes</span></div> -<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64</span></div> -<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> RGB-format JPEG; remove white matting in PSD;</span></div> -<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> allocate large structures on the stack;</span></div> -<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> correct channel count for PNG & BMP</span></div> -<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> 2.10 (2016-01-22) avoid warning introduced in 2.09</span></div> -<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED</span></div> +<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">RECENT REVISION HISTORY:</span></div> +<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"></span></div> +<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> 2.16 (2017-07-23) all functions have 16-bit variants; optimizations;</span></div> +<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment">bugfixes 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE</span></div> +<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">detection on GCC 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for</span></div> +<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">Imagenet JPGs 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far;</span></div> +<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">fixes 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes 2.11</span></div> +<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">(2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 RGB-format JPEG; remove</span></div> +<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">white matting in PSD; allocate large structures on the stack; correct channel</span></div> +<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment">count for PNG & BMP 2.10 (2016-01-22) avoid warning introduced in 2.09 2.09</span></div> +<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">(2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED</span></div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"></span></div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> See end of file for full revision history.</span></div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"></span></div> @@ -186,55 +170,55 @@ $(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> github:urraka (animated gif) Junggon Kim (PNM comments)</span></div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> Daniel Gibson (16-bit TGA)</span></div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> socks-the-fox (16-bit PNG)</span></div> -<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> Jeremy Sawicki (handle all ImageNet JPGs)</span></div> -<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> Optimizations & bugfixes</span></div> -<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> Fabian "ryg" Giesen</span></div> -<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> Arseny Kapoulkine</span></div> -<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> John-Mark Allen</span></div> -<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"></span></div> -<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> Bug & warning fixes</span></div> -<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> Marc LeBlanc David Woo Guillaume George Martins Mozeiko</span></div> -<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> Christpher Lloyd Jerry Jansson Joseph Thomson Phil Jordan</span></div> -<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> Dave Moore Roy Eltham Hayaki Saito Nathan Reed</span></div> -<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> Won Chun Luke Graham Johan Duparc Nick Verigakis</span></div> -<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> the Horde3D community Thomas Ruf Ronny Chevalier Baldur Karlsson</span></div> -<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> Janez Zemva John Bartholomew Michal Cichon github:rlyeh</span></div> -<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> Jonathan Blow Ken Hamada Tero Hanninen github:romigrou</span></div> -<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> Laurent Gomila Cort Stratton Sergio Gonzalez github:svdijk</span></div> -<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> Aruelien Pocheville Thibault Reuille Cass Everitt github:snagar</span></div> -<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> Ryamond Barbiero Paul Du Bois Engin Manap github:Zelex</span></div> -<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> Michaelangel007@github Philipp Wiesemann Dale Weiler github:grim210</span></div> -<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> Oriol Ferrer Mesia Josh Tobin Matthew Gregan github:sammyhw</span></div> -<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> Blazej Dariusz Roszkowski Gregory Mullen github:phprus</span></div> -<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> Christian Floisand Kevin Schmidt github:poppolopoppo</span></div> -<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">*/</span></div> -<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div> -<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#ifndef STBI_INCLUDE_STB_IMAGE_H</span></div> -<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_INCLUDE_STB_IMAGE_H</span></div> -<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment">// DOCUMENTATION</span></div> -<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment">//</span></div> -<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// Limitations:</span></div> -<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// - no 16-bit-per-channel PNG</span></div> -<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// - no 12-bit-per-channel JPEG</span></div> -<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// - no JPEGs with arithmetic coding</span></div> -<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// - no 1-bit BMP</span></div> -<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">// - GIF always returns *comp=4</span></div> -<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment">//</span></div> -<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// Basic usage (see HDR discussion below for HDR usage):</span></div> -<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">// int x,y,n;</span></div> -<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment">// unsigned char *data = stbi_load(filename, &x, &y, &n, 0);</span></div> -<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// // ... process data if not NULL ...</span></div> -<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// // ... x = width, y = height, n = # 8-bit components per pixel ...</span></div> -<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment">// // ... replace '0' with '1'..'4' to force that many components per pixel</span></div> -<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// // ... but 'n' will always be the number that it would have been if you said 0</span></div> -<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment">// stbi_image_free(data)</span></div> -<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment">//</span></div> -<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// Standard parameters:</span></div> -<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// int *x -- outputs image width in pixels</span></div> -<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// int *y -- outputs image height in pixels</span></div> -<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">// int *channels_in_file -- outputs # of image components in image file</span></div> -<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">// int desired_channels -- if non-zero, # of image components requested in result</span></div> +<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> Jeremy Sawicki (handle all ImageNet</span></div> +<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">JPGs) Optimizations & bugfixes Fabian "ryg" Giesen Arseny Kapoulkine John-Mark</span></div> +<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">Allen</span></div> +<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"></span></div> +<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> Bug & warning fixes</span></div> +<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> Marc LeBlanc David Woo Guillaume George Martins</span></div> +<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment">Mozeiko Christpher Lloyd Jerry Jansson Joseph Thomson Phil</span></div> +<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">Jordan Dave Moore Roy Eltham Hayaki Saito Nathan Reed</span></div> +<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> Won Chun Luke Graham Johan Duparc Nick Verigakis</span></div> +<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> the Horde3D community Thomas Ruf Ronny Chevalier Baldur</span></div> +<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">Karlsson Janez Zemva John Bartholomew Michal Cichon</span></div> +<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">github:rlyeh Jonathan Blow Ken Hamada Tero Hanninen</span></div> +<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">github:romigrou Laurent Gomila Cort Stratton Sergio Gonzalez</span></div> +<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">github:svdijk Aruelien Pocheville Thibault Reuille Cass Everitt</span></div> +<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">github:snagar Ryamond Barbiero Paul Du Bois Engin Manap</span></div> +<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">github:Zelex Michaelangel007@github Philipp Wiesemann Dale Weiler</span></div> +<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">github:grim210 Oriol Ferrer Mesia Josh Tobin Matthew Gregan</span></div> +<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">github:sammyhw Blazej Dariusz Roszkowski Gregory Mullen</span></div> +<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">github:phprus Christian Floisand Kevin Schmidt</span></div> +<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">github:poppolopoppo</span></div> +<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">*/</span></div> +<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div> +<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor">#ifndef STBI_INCLUDE_STB_IMAGE_H</span></div> +<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_INCLUDE_STB_IMAGE_H</span></div> +<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// DOCUMENTATION</span></div> +<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment">//</span></div> +<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// Limitations:</span></div> +<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// - no 16-bit-per-channel PNG</span></div> +<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// - no 12-bit-per-channel JPEG</span></div> +<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// - no JPEGs with arithmetic coding</span></div> +<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// - no 1-bit BMP</span></div> +<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// - GIF always returns *comp=4</span></div> +<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">//</span></div> +<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment">// Basic usage (see HDR discussion below for HDR usage):</span></div> +<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// int x,y,n;</span></div> +<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">// unsigned char *data = stbi_load(filename, &x, &y, &n, 0);</span></div> +<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment">// // ... process data if not NULL ...</span></div> +<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// // ... x = width, y = height, n = # 8-bit components per pixel ...</span></div> +<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// // ... replace '0' with '1'..'4' to force that many components per pixel</span></div> +<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment">// // ... but 'n' will always be the number that it would have been if you</span></div> +<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// said 0 stbi_image_free(data)</span></div> +<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment">//</span></div> +<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// Standard parameters:</span></div> +<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// int *x -- outputs image width in pixels</span></div> +<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// int *y -- outputs image height in pixels</span></div> +<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// int *channels_in_file -- outputs # of image components in image file</span></div> +<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">// int desired_channels -- if non-zero, # of image components requested in</span></div> +<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">// result</span></div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">//</span></div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// The return value from an image loader is an 'unsigned char *' which points</span></div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// to the pixel data, or NULL on an allocation failure or if the image is</span></div> @@ -262,8 +246,8 @@ $(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// and *x, *y, *channels_in_file will be unchanged. The function</span></div> <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// stbi_failure_reason() can be queried for an extremely brief, end-user</span></div> <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS</span></div> -<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly</span></div> -<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// more user-friendly ones.</span></div> +<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get</span></div> +<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// slightly more user-friendly ones.</span></div> <div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">//</span></div> <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.</span></div> <div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">//</span></div> @@ -277,154 +261,154 @@ $(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// 2. easy to maintain</span></div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// 3. good performance</span></div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment">//</span></div> -<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// Sometimes I let "good performance" creep up in priority over "easy to maintain",</span></div> -<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">// and for best performance I may provide less-easy-to-use APIs that give higher</span></div> -<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// performance, in addition to the easy to use ones. Nevertheless, it's important</span></div> -<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment">// to keep in mind that from the standpoint of you, a client of this library,</span></div> -<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment">// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all.</span></div> -<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">//</span></div> -<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment">// Some secondary priorities arise directly from the first two, some of which</span></div> -<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// make more explicit reasons why performance can't be emphasized.</span></div> -<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">//</span></div> -<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// - Portable ("ease of use")</span></div> -<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// - Small source code footprint ("easy to maintain")</span></div> -<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment">// - No dependencies ("ease of use")</span></div> -<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">//</span></div> -<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment">// ===========================================================================</span></div> -<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment">//</span></div> -<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">// I/O callbacks</span></div> -<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">//</span></div> -<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment">// I/O callbacks allow you to read from arbitrary sources, like packaged</span></div> -<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// files or some other source. Data read from callbacks are processed</span></div> -<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment">// through a small internal buffer (currently 128 bytes) to try to reduce</span></div> -<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">// overhead.</span></div> -<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment">//</span></div> -<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment">// The three functions you must define are "read" (reads some bytes of data),</span></div> -<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment">// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).</span></div> -<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment">//</span></div> -<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment">// ===========================================================================</span></div> +<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// Sometimes I let "good performance" creep up in priority over "easy to</span></div> +<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">// maintain", and for best performance I may provide less-easy-to-use APIs that</span></div> +<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// give higher performance, in addition to the easy to use ones. Nevertheless,</span></div> +<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment">// it's important to keep in mind that from the standpoint of you, a client of</span></div> +<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment">// this library, all you care about is #1 and #3, and stb libraries DO NOT</span></div> +<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// emphasize #3 above all.</span></div> +<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment">//</span></div> +<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// Some secondary priorities arise directly from the first two, some of which</span></div> +<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// make more explicit reasons why performance can't be emphasized.</span></div> +<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">//</span></div> +<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// - Portable ("ease of use")</span></div> +<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment">// - Small source code footprint ("easy to maintain")</span></div> +<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">// - No dependencies ("ease of use")</span></div> +<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment">//</span></div> +<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// ===========================================================================</span></div> +<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">//</span></div> +<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// I/O callbacks</span></div> +<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment">//</span></div> +<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// I/O callbacks allow you to read from arbitrary sources, like packaged</span></div> +<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment">// files or some other source. Data read from callbacks are processed</span></div> +<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">// through a small internal buffer (currently 128 bytes) to try to reduce</span></div> +<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment">// overhead.</span></div> +<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment">//</span></div> +<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment">// The three functions you must define are "read" (reads some bytes of data),</span></div> +<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment">// "skip" (skips some bytes of data), "eof" (reports if the stream is at the</span></div> +<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment">// end).</span></div> <div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">//</span></div> -<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">// SIMD support</span></div> +<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">// ===========================================================================</span></div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment">//</span></div> -<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment">// The JPEG decoder will try to automatically use SIMD kernels on x86 when</span></div> -<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment">// supported by the compiler. For ARM Neon support, you must explicitly</span></div> -<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment">// request it.</span></div> -<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment">//</span></div> -<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment">// (The old do-it-yourself SIMD API is no longer supported in the current</span></div> -<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment">// code.)</span></div> -<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment">//</span></div> -<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment">// On x86, SSE2 will automatically be used when available based on a run-time</span></div> -<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment">// test; if not, the generic C versions are used as a fall-back. On ARM targets,</span></div> -<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// the typical path is to have separate builds for NEON and non-NEON devices</span></div> -<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// (at least this is true for iOS and Android). Therefore, the NEON support is</span></div> -<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// toggled by a build flag: define STBI_NEON to get NEON loops.</span></div> -<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment">//</span></div> -<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment">// If for some reason you do not want to use any of SIMD code, or if</span></div> -<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment">// you have issues compiling it, you can disable it entirely by</span></div> -<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment">// defining STBI_NO_SIMD.</span></div> -<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment">//</span></div> -<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// ===========================================================================</span></div> +<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment">// SIMD support</span></div> +<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment">//</span></div> +<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment">// The JPEG decoder will try to automatically use SIMD kernels on x86 when</span></div> +<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment">// supported by the compiler. For ARM Neon support, you must explicitly</span></div> +<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment">// request it.</span></div> +<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment">//</span></div> +<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment">// (The old do-it-yourself SIMD API is no longer supported in the current</span></div> +<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment">// code.)</span></div> +<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment">//</span></div> +<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// On x86, SSE2 will automatically be used when available based on a run-time</span></div> +<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// test; if not, the generic C versions are used as a fall-back. On ARM targets,</span></div> +<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// the typical path is to have separate builds for NEON and non-NEON devices</span></div> +<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment">// (at least this is true for iOS and Android). Therefore, the NEON support is</span></div> +<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment">// toggled by a build flag: define STBI_NEON to get NEON loops.</span></div> +<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment">//</span></div> +<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment">// If for some reason you do not want to use any of SIMD code, or if</span></div> +<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment">// you have issues compiling it, you can disable it entirely by</span></div> +<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// defining STBI_NO_SIMD.</span></div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">//</span></div> -<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">// HDR image support (disable by defining STBI_NO_HDR)</span></div> +<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">// ===========================================================================</span></div> <div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment">//</span></div> -<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// stb_image now supports loading HDR images in general, and currently</span></div> -<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">// the Radiance .HDR file format, although the support is provided</span></div> -<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// generically. You can still load any file through the existing interface;</span></div> -<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment">// if you attempt to load an HDR file, it will be automatically remapped to</span></div> -<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;</span></div> -<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// both of these constants can be reconfigured through this interface:</span></div> -<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">//</span></div> -<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// stbi_hdr_to_ldr_gamma(2.2f);</span></div> -<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// stbi_hdr_to_ldr_scale(1.0f);</span></div> -<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">//</span></div> -<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment">// (note, do not use _inverse_ constants; stbi_image will invert them</span></div> -<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">// appropriately).</span></div> -<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">//</span></div> -<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// Additionally, there is a new, parallel interface for loading files as</span></div> -<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// (linear) floats to preserve the full dynamic range:</span></div> -<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">//</span></div> -<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">// float *data = stbi_loadf(filename, &x, &y, &n, 0);</span></div> +<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// HDR image support (disable by defining STBI_NO_HDR)</span></div> +<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">//</span></div> +<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// stb_image now supports loading HDR images in general, and currently</span></div> +<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment">// the Radiance .HDR file format, although the support is provided</span></div> +<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">// generically. You can still load any file through the existing interface;</span></div> +<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// if you attempt to load an HDR file, it will be automatically remapped to</span></div> +<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;</span></div> +<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// both of these constants can be reconfigured through this interface:</span></div> +<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">//</span></div> +<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// stbi_hdr_to_ldr_gamma(2.2f);</span></div> +<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment">// stbi_hdr_to_ldr_scale(1.0f);</span></div> +<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">//</span></div> +<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">// (note, do not use _inverse_ constants; stbi_image will invert them</span></div> +<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// appropriately).</span></div> +<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">//</span></div> +<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// Additionally, there is a new, parallel interface for loading files as</span></div> +<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">// (linear) floats to preserve the full dynamic range:</span></div> <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment">//</span></div> -<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment">// If you load LDR images through this interface, those images will</span></div> -<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">// be promoted to floating point values, run through the inverse of</span></div> -<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">// constants corresponding to the above:</span></div> -<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment">//</span></div> -<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">// stbi_ldr_to_hdr_scale(1.0f);</span></div> -<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment">// stbi_ldr_to_hdr_gamma(2.2f);</span></div> -<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment">//</span></div> -<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// Finally, given a filename (or an open file or memory block--see header</span></div> -<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment">// file for details) containing image data, you can query for the "most</span></div> -<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment">// appropriate" interface to use (that is, whether the image is HDR or</span></div> -<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// not), using:</span></div> -<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment">//</span></div> -<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment">// stbi_is_hdr(char *filename);</span></div> +<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment">// float *data = stbi_loadf(filename, &x, &y, &n, 0);</span></div> +<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">//</span></div> +<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">// If you load LDR images through this interface, those images will</span></div> +<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment">// be promoted to floating point values, run through the inverse of</span></div> +<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">// constants corresponding to the above:</span></div> +<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment">//</span></div> +<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment">// stbi_ldr_to_hdr_scale(1.0f);</span></div> +<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// stbi_ldr_to_hdr_gamma(2.2f);</span></div> +<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment">//</span></div> +<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment">// Finally, given a filename (or an open file or memory block--see header</span></div> +<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// file for details) containing image data, you can query for the "most</span></div> +<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment">// appropriate" interface to use (that is, whether the image is HDR or</span></div> +<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment">// not), using:</span></div> <div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment">//</span></div> -<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment">// ===========================================================================</span></div> +<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment">// stbi_is_hdr(char *filename);</span></div> <div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="comment">//</span></div> -<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment">// iPhone PNG support:</span></div> +<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="comment">// ===========================================================================</span></div> <div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment">//</span></div> -<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment">// By default we convert iphone-formatted PNGs back to RGB, even though</span></div> -<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment">// they are internally encoded differently. You can disable this conversion</span></div> -<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="comment">// by by calling stbi_convert_iphone_png_to_rgb(0), in which case</span></div> -<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment">// you will always just get the native iphone "format" through (which</span></div> -<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// is BGR stored in RGB).</span></div> -<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment">//</span></div> -<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment">// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per</span></div> -<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment">// pixel to remove any premultiplied alpha *only* if the image file explicitly</span></div> -<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment">// says there's premultiplied data (currently only happens in iPhone images,</span></div> -<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment">// and only if iPhone convert-to-rgb processing is on).</span></div> -<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment">//</span></div> -<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment">// ===========================================================================</span></div> +<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment">// iPhone PNG support:</span></div> +<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment">//</span></div> +<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="comment">// By default we convert iphone-formatted PNGs back to RGB, even though</span></div> +<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment">// they are internally encoded differently. You can disable this conversion</span></div> +<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// by by calling stbi_convert_iphone_png_to_rgb(0), in which case</span></div> +<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment">// you will always just get the native iphone "format" through (which</span></div> +<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment">// is BGR stored in RGB).</span></div> +<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment">//</span></div> +<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment">// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per</span></div> +<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment">// pixel to remove any premultiplied alpha *only* if the image file explicitly</span></div> +<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment">// says there's premultiplied data (currently only happens in iPhone images,</span></div> +<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment">// and only if iPhone convert-to-rgb processing is on).</span></div> <div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment">//</span></div> -<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment">// ADDITIONAL CONFIGURATION</span></div> +<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment">// ===========================================================================</span></div> <div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="comment">//</span></div> -<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment">// - You can suppress implementation of any of the decoders to reduce</span></div> -<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment">// your code footprint by #defining one or more of the following</span></div> -<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment">// symbols before creating the implementation.</span></div> -<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment">//</span></div> -<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// STBI_NO_JPEG</span></div> -<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment">// STBI_NO_PNG</span></div> -<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// STBI_NO_BMP</span></div> -<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment">// STBI_NO_PSD</span></div> -<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">// STBI_NO_TGA</span></div> -<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// STBI_NO_GIF</span></div> -<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// STBI_NO_HDR</span></div> -<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// STBI_NO_PIC</span></div> -<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// STBI_NO_PNM (.ppm and .pgm)</span></div> -<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">//</span></div> -<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment">// - You can request *only* certain decoders and suppress all other ones</span></div> -<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment">// (this will be more forward-compatible, as addition of new decoders</span></div> -<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment">// doesn't require you to disable them explicitly):</span></div> -<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment">//</span></div> -<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment">// STBI_ONLY_JPEG</span></div> -<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment">// STBI_ONLY_PNG</span></div> -<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment">// STBI_ONLY_BMP</span></div> -<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment">// STBI_ONLY_PSD</span></div> -<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment">// STBI_ONLY_TGA</span></div> -<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment">// STBI_ONLY_GIF</span></div> -<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment">// STBI_ONLY_HDR</span></div> -<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment">// STBI_ONLY_PIC</span></div> -<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment">// STBI_ONLY_PNM (.ppm and .pgm)</span></div> -<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment">//</span></div> -<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment">// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still</span></div> -<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment">// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB</span></div> -<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment">//</span></div> -<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div> -<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div> -<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdio.h></span></div> -<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="preprocessor">#endif // STBI_NO_STDIO</span></div> -<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00308"></a><span class="lineno"><a class="line" href="stb__image_8h.html#aed6cd14a3bf678808c4c179e808866aa"> 308</a></span> <span class="preprocessor">#define STBI_VERSION 1</span></div> -<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="keyword">enum</span></div> -<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> {</div> -<div class="line"><a name="l00312"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55ba0177ac2c5002f4f251bb766d41752029"> 312</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55ba0177ac2c5002f4f251bb766d41752029">STBI_default</a> = 0, <span class="comment">// only used for desired_channels</span></div> +<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment">// ADDITIONAL CONFIGURATION</span></div> +<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment">//</span></div> +<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment">// - You can suppress implementation of any of the decoders to reduce</span></div> +<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment">// your code footprint by #defining one or more of the following</span></div> +<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// symbols before creating the implementation.</span></div> +<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment">//</span></div> +<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// STBI_NO_JPEG</span></div> +<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment">// STBI_NO_PNG</span></div> +<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">// STBI_NO_BMP</span></div> +<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// STBI_NO_PSD</span></div> +<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// STBI_NO_TGA</span></div> +<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// STBI_NO_GIF</span></div> +<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// STBI_NO_HDR</span></div> +<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">// STBI_NO_PIC</span></div> +<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment">// STBI_NO_PNM (.ppm and .pgm)</span></div> +<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment">//</span></div> +<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment">// - You can request *only* certain decoders and suppress all other ones</span></div> +<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment">// (this will be more forward-compatible, as addition of new decoders</span></div> +<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment">// doesn't require you to disable them explicitly):</span></div> +<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment">//</span></div> +<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment">// STBI_ONLY_JPEG</span></div> +<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment">// STBI_ONLY_PNG</span></div> +<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment">// STBI_ONLY_BMP</span></div> +<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment">// STBI_ONLY_PSD</span></div> +<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment">// STBI_ONLY_TGA</span></div> +<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment">// STBI_ONLY_GIF</span></div> +<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment">// STBI_ONLY_HDR</span></div> +<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment">// STBI_ONLY_PIC</span></div> +<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment">// STBI_ONLY_PNM (.ppm and .pgm)</span></div> +<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment">//</span></div> +<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment">// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still</span></div> +<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="comment">// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB</span></div> +<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="comment">//</span></div> +<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div> +<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdio.h></span></div> +<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="preprocessor">#endif // STBI_NO_STDIO</span></div> +<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="stb__image_8h.html#aed6cd14a3bf678808c4c179e808866aa"> 309</a></span> <span class="preprocessor">#define STBI_VERSION 1</span></div> +<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="keyword">enum</span> {</div> +<div class="line"><a name="l00312"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55ba0177ac2c5002f4f251bb766d41752029"> 312</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55ba0177ac2c5002f4f251bb766d41752029">STBI_default</a> = 0, <span class="comment">// only used for desired_channels</span></div> <div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div> -<div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55bad1eb95ca1fa7706bf732bf35a0ed40aa"> 314</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55bad1eb95ca1fa7706bf732bf35a0ed40aa">STBI_grey</a> = 1,</div> -<div class="line"><a name="l00315"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baf5829d16d4cca6077465c5abd346e2f8"> 315</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baf5829d16d4cca6077465c5abd346e2f8">STBI_grey_alpha</a> = 2,</div> -<div class="line"><a name="l00316"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf"> 316</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a> = 3,</div> -<div class="line"><a name="l00317"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa7b1af0c9f0310c3ada2aa29a32de293"> 317</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa7b1af0c9f0310c3ada2aa29a32de293">STBI_rgb_alpha</a> = 4</div> +<div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55bad1eb95ca1fa7706bf732bf35a0ed40aa"> 314</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55bad1eb95ca1fa7706bf732bf35a0ed40aa">STBI_grey</a> = 1,</div> +<div class="line"><a name="l00315"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baf5829d16d4cca6077465c5abd346e2f8"> 315</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baf5829d16d4cca6077465c5abd346e2f8">STBI_grey_alpha</a> = 2,</div> +<div class="line"><a name="l00316"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf"> 316</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a> = 3,</div> +<div class="line"><a name="l00317"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa7b1af0c9f0310c3ada2aa29a32de293"> 317</a></span>  <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa7b1af0c9f0310c3ada2aa29a32de293">STBI_rgb_alpha</a> = 4</div> <div class="line"><a name="l00318"></a><span class="lineno"> 318</span> };</div> <div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div> <div class="line"><a name="l00320"></a><span class="lineno"><a class="line" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d"> 320</a></span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>;</div> @@ -448,6844 +432,7814 @@ $(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); <div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment">// load image by filename, open file, or memory buffer</span></div> <div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment">//</span></div> <div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div> -<div class="line"><a name="l00342"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html"> 342</a></span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> {</div> -<div class="line"><a name="l00344"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html#a73818f0a4f467e5abfefb1d635f62d82"> 344</a></span>  int (*read) (<span class="keywordtype">void</span> *user,<span class="keywordtype">char</span> *data,<span class="keywordtype">int</span> size); <span class="comment">// fill 'data' with 'size' bytes. return number of bytes actually read</span></div> -<div class="line"><a name="l00345"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html#a864be557872041ac06e1509caf05cc83"> 345</a></span>  void (*skip) (<span class="keywordtype">void</span> *user,<span class="keywordtype">int</span> n); <span class="comment">// skip the next 'n' bytes, or 'unget' the last -n bytes if negative</span></div> -<div class="line"><a name="l00346"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html#a2c4f3c3b7c75a2e74a35caf74fb8d177"> 346</a></span>  int (*eof) (<span class="keywordtype">void</span> *user); <span class="comment">// returns nonzero if we are at end of file/data</span></div> -<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> } <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a>;</div> -<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div> -<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> <span class="comment">//</span></div> -<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="comment">// 8-bits-per-channel interface</span></div> +<div class="line"><a name="l00342"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html"> 342</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l00343"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html#a73818f0a4f467e5abfefb1d635f62d82"> 343</a></span>  int (*read)(<span class="keywordtype">void</span> *user, <span class="keywordtype">char</span> *data, <span class="keywordtype">int</span> size); <span class="comment">// fill 'data' with 'size'</span></div> +<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="comment">// bytes. return number of</span></div> +<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// bytes actually read</span></div> +<div class="line"><a name="l00346"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html#a864be557872041ac06e1509caf05cc83"> 346</a></span>  void (*skip)(<span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> n); <span class="comment">// skip the next 'n' bytes, or 'unget' the</span></div> +<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// last -n bytes if negative</span></div> +<div class="line"><a name="l00348"></a><span class="lineno"><a class="line" href="structstbi__io__callbacks.html#a2c4f3c3b7c75a2e74a35caf74fb8d177"> 348</a></span>  int (*eof)(<span class="keywordtype">void</span> *user); <span class="comment">// returns nonzero if we are at end of file/data</span></div> +<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> } <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a>;</div> +<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div> <div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="comment">//</span></div> -<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div> -<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#acae25d31bfae29d75482f07fecf2935f">stbi_load_from_memory</a> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len , <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#a95ebc5c42c1a753200be8d465e933af7">stbi_load_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk , <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div> -<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aefdc7387857a14894bbf321e9ea4f048">stbi_load</a> (<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aa9994764695597161e8f3776e97caa99">stbi_load_from_file</a> (FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// for stbi_load_from_file, file pointer is left pointing immediately after image</span></div> -<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment">//</span></div> -<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment">// 16-bits-per-channel interface</span></div> -<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment">//</span></div> -<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div> -<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#ad30fd870ed2138ce8f38c9dd29b2f76a">stbi_load_16_from_memory</a> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a82bcc0957b6a4ebfdfa3d7f04fbaed18">stbi_load_16_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> </div> -<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a8a58b6bcd805afa1bdb14f988dd37fee">stbi_load_16</a> (<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a9ca2591f0987284129e82bf9dbcf7c6c">stbi_load_from_file_16</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="comment">// 8-bits-per-channel interface</span></div> +<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="comment">//</span></div> +<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div> +<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#acae25d31bfae29d75482f07fecf2935f">stbi_load_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#a95ebc5c42c1a753200be8d465e933af7">stbi_load_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div> +<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aefdc7387857a14894bbf321e9ea4f048">stbi_load</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aa9994764695597161e8f3776e97caa99">stbi_load_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment">// for stbi_load_from_file, file pointer is left pointing immediately after</span></div> +<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment">// image</span></div> +<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment">//</span></div> +<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="comment">// 16-bits-per-channel interface</span></div> <div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment">//</span></div> -<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment">// float-per-channel interface</span></div> -<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment">//</span></div> -<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> -<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="preprocessor"></span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a5d47fb76ce1e34eb0729ad932c9c48e2">stbi_loadf_from_memory</a> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a6e7fd261af79ecef2208df3a6cc806bb">stbi_loadf_from_callbacks</a> (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div> -<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="preprocessor"> #ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor"></span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#af4f17acd30945a75901fdc022f90575f">stbi_loadf</a> (<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#ace82446ecd7b5c760cde062179660f46">stbi_loadf_from_file</a> (FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> -<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="preprocessor"></span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab18889e43518d6b4421b705782bb1b5e">stbi_hdr_to_ldr_gamma</a>(<span class="keywordtype">float</span> gamma);</div> -<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ae21cc1184eeb5cc814699f1ed62c5258">stbi_hdr_to_ldr_scale</a>(<span class="keywordtype">float</span> scale);</div> -<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="preprocessor">#endif // STBI_NO_HDR</span></div> +<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div> +<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#ad30fd870ed2138ce8f38c9dd29b2f76a">stbi_load_16_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a82bcc0957b6a4ebfdfa3d7f04fbaed18">stbi_load_16_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div> +<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a8a58b6bcd805afa1bdb14f988dd37fee">stbi_load_16</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a9ca2591f0987284129e82bf9dbcf7c6c">stbi_load_from_file_16</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="preprocessor">#endif</span></div> <div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> -<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="preprocessor"></span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a1feccdcf726dcc6b5502e3efa85b7dbb">stbi_ldr_to_hdr_gamma</a>(<span class="keywordtype">float</span> gamma);</div> -<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#af946583656a362a316b40c0421c20561">stbi_ldr_to_hdr_scale</a>(<span class="keywordtype">float</span> scale);</div> -<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="preprocessor">#endif // STBI_NO_LINEAR</span></div> -<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment">// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR</span></div> -<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#af0e94f316fe1848f632517ca3c11d077">stbi_is_hdr_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user);</div> -<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a5cbc6f5cbb3b2d0d87ee959fcee9d23e">stbi_is_hdr_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len);</div> -<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae70f9a302f7e87fd971075e7f758d55c">stbi_is_hdr</a> (<span class="keywordtype">char</span> <span class="keyword">const</span> *filename);</div> -<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aaf10d41631e1e9214fde1688bdbd8524">stbi_is_hdr_from_file</a>(FILE *f);</div> -<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="preprocessor">#endif // STBI_NO_STDIO</span></div> -<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> </div> -<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="comment">// get a VERY brief reason for failure</span></div> -<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment">// NOT THREADSAFE</span></div> -<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aa874b3ba909f3281d499894909678336">stbi_failure_reason</a> (<span class="keywordtype">void</span>);</div> -<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div> -<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="comment">// free the loaded image -- this is just free()</span></div> -<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ad3e11bb44412a7ba348acfbad09caacb">stbi_image_free</a> (<span class="keywordtype">void</span> *retval_from_stbi_load);</div> -<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div> -<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="comment">// get image dimensions & components without fully decoding</span></div> -<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#acfef077febce3bc3f1f339de478f3315">stbi_info_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a86291c64cb663f41a34647d5e1abf363">stbi_info_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div> -<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aede708cca1304520b2afcf4d5eb61d70">stbi_info</a> (<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a28abedef4a0a93909332080df6be0021">stbi_info_from_file</a> (FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div> -<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div> -<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> </div> -<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment">// for image formats that explicitly notate that they have premultiplied alpha,</span></div> -<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment">// we just return the colors as stored in the file. set this flag to force</span></div> -<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="comment">// unpremultiplication. results are undefined if the unpremultiply overflow.</span></div> -<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a3f02e0053e1c8d08a3ed436e6a82c7c9">stbi_set_unpremultiply_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_unpremultiply);</div> -<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> </div> -<div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="comment">// indicate whether we should process iphone images back to canonical format,</span></div> -<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="comment">// or just pass them through "as-is"</span></div> -<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a23525ef2b882f3de426b47ecf8d9151b">stbi_convert_iphone_png_to_rgb</a>(<span class="keywordtype">int</span> flag_true_if_should_convert);</div> -<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div> -<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment">// flip the image vertically, so the first pixel in the output array is the bottom left</span></div> -<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab89c177fc52f1bb2dc1c05e48129a0a4">stbi_set_flip_vertically_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_flip);</div> +<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment">//</span></div> +<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment">// float-per-channel interface</span></div> +<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment">//</span></div> +<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> +<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a5d47fb76ce1e34eb0729ad932c9c48e2">stbi_loadf_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a6e7fd261af79ecef2208df3a6cc806bb">stbi_loadf_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div> +<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#af4f17acd30945a75901fdc022f90575f">stbi_loadf</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#ace82446ecd7b5c760cde062179660f46">stbi_loadf_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordtype">int</span> desired_channels);</div> +<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab18889e43518d6b4421b705782bb1b5e">stbi_hdr_to_ldr_gamma</a>(<span class="keywordtype">float</span> gamma);</div> +<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ae21cc1184eeb5cc814699f1ed62c5258">stbi_hdr_to_ldr_scale</a>(<span class="keywordtype">float</span> scale);</div> +<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="preprocessor">#endif // STBI_NO_HDR</span></div> +<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> +<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a1feccdcf726dcc6b5502e3efa85b7dbb">stbi_ldr_to_hdr_gamma</a>(<span class="keywordtype">float</span> gamma);</div> +<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#af946583656a362a316b40c0421c20561">stbi_ldr_to_hdr_scale</a>(<span class="keywordtype">float</span> scale);</div> +<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="preprocessor">#endif // STBI_NO_LINEAR</span></div> +<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment">// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR</span></div> +<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#af0e94f316fe1848f632517ca3c11d077">stbi_is_hdr_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordtype">void</span> *user);</div> +<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a5cbc6f5cbb3b2d0d87ee959fcee9d23e">stbi_is_hdr_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len);</div> +<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae70f9a302f7e87fd971075e7f758d55c">stbi_is_hdr</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename);</div> +<div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aaf10d41631e1e9214fde1688bdbd8524">stbi_is_hdr_from_file</a>(FILE *f);</div> +<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="preprocessor">#endif // STBI_NO_STDIO</span></div> +<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="comment">// get a VERY brief reason for failure</span></div> +<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> <span class="comment">// NOT THREADSAFE</span></div> +<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aa874b3ba909f3281d499894909678336">stbi_failure_reason</a>(<span class="keywordtype">void</span>);</div> <div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div> -<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="comment">// ZLIB client - used by PNG, available for other purposes</span></div> -<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div> -<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> initial_size, <span class="keywordtype">int</span> *outlen);</div> -<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a038b0e741859a482b8b9d60167e54d27">stbi_zlib_decode_malloc_guesssize_headerflag</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> initial_size, <span class="keywordtype">int</span> *outlen, <span class="keywordtype">int</span> parse_header);</div> -<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a4919b67b12e0e3acc5301f185ca77e2e">stbi_zlib_decode_malloc</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *outlen);</div> -<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae8447830c49bc17f8491e12c1f0ded48">stbi_zlib_decode_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen, <span class="keyword">const</span> <span class="keywordtype">char</span> *ibuffer, <span class="keywordtype">int</span> ilen);</div> -<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> </div> -<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a7fbd65c83495f13f22469fe493775739">stbi_zlib_decode_noheader_malloc</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *outlen);</div> -<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a0d12efc011adfff7521f3b924feb0b0e">stbi_zlib_decode_noheader_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen, <span class="keyword">const</span> <span class="keywordtype">char</span> *ibuffer, <span class="keywordtype">int</span> ilen);</div> -<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> </div> -<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> </div> -<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="preprocessor">#ifdef __cplusplus</span></div> -<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="comment">// free the loaded image -- this is just free()</span></div> +<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ad3e11bb44412a7ba348acfbad09caacb">stbi_image_free</a>(<span class="keywordtype">void</span> *retval_from_stbi_load);</div> +<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div> +<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> <span class="comment">// get image dimensions & components without fully decoding</span></div> +<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#acfef077febce3bc3f1f339de478f3315">stbi_info_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a86291c64cb663f41a34647d5e1abf363">stbi_info_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user,</div> +<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div> +<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aede708cca1304520b2afcf4d5eb61d70">stbi_info</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a28abedef4a0a93909332080df6be0021">stbi_info_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> </div> <div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="preprocessor">#endif</span></div> <div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment">//</span></div> -<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment">//</span></div> -<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"></span><span class="preprocessor">#endif // STBI_INCLUDE_STB_IMAGE_H</span></div> -<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="preprocessor">#ifdef STB_IMAGE_IMPLEMENTATION</span></div> -<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="preprocessor">#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \</span></div> -<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="preprocessor"> || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \</span></div> -<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="preprocessor"> || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \</span></div> -<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="preprocessor"> || defined(STBI_ONLY_ZLIB)</span></div> -<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_JPEG</span></div> -<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_JPEG</span></div> -<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_PNG</span></div> -<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_PNG</span></div> -<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_BMP</span></div> -<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_BMP</span></div> -<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_PSD</span></div> -<div class="line"><a name="l00476"></a><span class="lineno"> 476</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_PSD</span></div> -<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_TGA</span></div> -<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_TGA</span></div> -<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_GIF</span></div> -<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_GIF</span></div> -<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_HDR</span></div> -<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_HDR</span></div> -<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_PIC</span></div> -<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_PIC</span></div> -<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_ONLY_PNM</span></div> -<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI_NO_PNM</span></div> -<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="preprocessor">#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB)</span></div> -<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_ZLIB</span></div> -<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> </div> -<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor">#include <stdarg.h></span></div> -<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="preprocessor">#include <stddef.h></span> <span class="comment">// ptrdiff_t on osx</span></div> -<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor">#include <stdlib.h></span></div> -<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor">#include <string.h></span></div> -<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor">#include <limits.h></span></div> -<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div> -<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="preprocessor">#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)</span></div> -<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="preprocessor"></span><span class="preprocessor">#include <math.h></span> <span class="comment">// ldexp</span></div> -<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdio.h></span></div> -<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="preprocessor">#ifndef STBI_ASSERT</span></div> -<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="preprocessor"></span><span class="preprocessor">#include <assert.h></span></div> -<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="preprocessor">#define STBI_ASSERT(x) assert(x)</span></div> +<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment">// for image formats that explicitly notate that they have premultiplied alpha,</span></div> +<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment">// we just return the colors as stored in the file. set this flag to force</span></div> +<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment">// unpremultiplication. results are undefined if the unpremultiply overflow.</span></div> +<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span></div> +<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <a class="code" href="stb__image_8h.html#a3f02e0053e1c8d08a3ed436e6a82c7c9">stbi_set_unpremultiply_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_unpremultiply);</div> +<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div> +<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="comment">// indicate whether we should process iphone images back to canonical format,</span></div> +<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> <span class="comment">// or just pass them through "as-is"</span></div> +<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a23525ef2b882f3de426b47ecf8d9151b">stbi_convert_iphone_png_to_rgb</a>(<span class="keywordtype">int</span> flag_true_if_should_convert);</div> +<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> </div> +<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment">// flip the image vertically, so the first pixel in the output array is the</span></div> +<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment">// bottom left</span></div> +<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab89c177fc52f1bb2dc1c05e48129a0a4">stbi_set_flip_vertically_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_flip);</div> +<div class="line"><a name="l00468"></a><span class="lineno"> 468</span> </div> +<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment">// ZLIB client - used by PNG, available for other purposes</span></div> +<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> </div> +<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordtype">int</span> initial_size, <span class="keywordtype">int</span> *outlen);</div> +<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a038b0e741859a482b8b9d60167e54d27">stbi_zlib_decode_malloc_guesssize_headerflag</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer,</div> +<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordtype">int</span> initial_size,</div> +<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordtype">int</span> *outlen,</div> +<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordtype">int</span> parse_header);</div> +<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a4919b67b12e0e3acc5301f185ca77e2e">stbi_zlib_decode_malloc</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *outlen);</div> +<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae8447830c49bc17f8491e12c1f0ded48">stbi_zlib_decode_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen,</div> +<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *ibuffer, <span class="keywordtype">int</span> ilen);</div> +<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div> +<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a7fbd65c83495f13f22469fe493775739">stbi_zlib_decode_noheader_malloc</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordtype">int</span> *outlen);</div> +<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a0d12efc011adfff7521f3b924feb0b0e">stbi_zlib_decode_noheader_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen,</div> +<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *ibuffer, <span class="keywordtype">int</span> ilen);</div> +<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div> +<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="preprocessor">#ifdef __cplusplus</span></div> +<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment">//</span></div> +<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment">//</span></div> +<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="comment"></span><span class="preprocessor">#endif // STBI_INCLUDE_STB_IMAGE_H</span></div> +<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor">#ifdef STB_IMAGE_IMPLEMENTATION</span></div> +<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="preprocessor">#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || \</span></div> +<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="preprocessor"> defined(STBI_ONLY_BMP) || defined(STBI_ONLY_TGA) || \</span></div> +<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor"> defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) || \</span></div> +<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="preprocessor"> defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || \</span></div> +<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor"> defined(STBI_ONLY_PNM) || defined(STBI_ONLY_ZLIB)</span></div> +<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_JPEG</span></div> +<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_JPEG</span></div> +<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_PNG</span></div> +<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_PNG</span></div> +<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_BMP</span></div> +<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_BMP</span></div> +<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_PSD</span></div> +<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_PSD</span></div> +<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_TGA</span></div> +<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_TGA</span></div> <div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> </div> -<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="preprocessor">#ifndef _MSC_VER</span></div> -<div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="preprocessor"></span><span class="preprocessor"> #ifdef __cplusplus</span></div> -<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi_inline inline</span></div> -<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="preprocessor"></span><span class="preprocessor"> #else</span></div> -<div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi_inline</span></div> -<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> -<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi_inline __forceinline</span></div> -<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div> -<div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> -<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> stbi__uint16;</div> -<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">short</span> stbi__int16;</div> -<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> stbi__uint32;</div> -<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">int</span> stbi__int32;</div> -<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="preprocessor">#else</span></div> -<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdint.h></span></div> -<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="keyword">typedef</span> uint16_t stbi__uint16;</div> -<div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="keyword">typedef</span> int16_t stbi__int16;</div> -<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="keyword">typedef</span> uint32_t stbi__uint32;</div> -<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="keyword">typedef</span> int32_t stbi__int32;</div> -<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment">// should produce compiler error if size is wrong</span></div> -<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> validate_uint32[<span class="keyword">sizeof</span>(stbi__uint32)==4 ? 1 : -1];</div> -<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> </div> -<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> -<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NOTUSED(v) (void)(v)</span></div> -<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> -<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NOTUSED(v) (void)sizeof(v)</span></div> -<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> -<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_HAS_LROTL</span></div> -<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="preprocessor">#ifdef STBI_HAS_LROTL</span></div> -<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi_lrot(x,y) _lrotl(x,y)</span></div> +<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_GIF</span></div> +<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_GIF</span></div> +<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_HDR</span></div> +<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_HDR</span></div> +<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_PIC</span></div> +<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_PIC</span></div> +<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_ONLY_PNM</span></div> +<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_PNM</span></div> +<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="preprocessor">#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && \</span></div> +<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="preprocessor"> !defined(STBI_NO_ZLIB)</span></div> +<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NO_ZLIB</span></div> +<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor">#include <limits.h></span></div> +<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="preprocessor">#include <stdarg.h></span></div> +<div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="preprocessor">#include <stddef.h></span> <span class="comment">// ptrdiff_t on osx</span></div> +<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="preprocessor">#include <stdlib.h></span></div> +<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="preprocessor">#include <string.h></span></div> +<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div> +<div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="preprocessor">#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR)</span></div> +<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="preprocessor"></span><span class="preprocessor">#include <math.h></span> <span class="comment">// ldexp</span></div> +<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdio.h></span></div> +<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="preprocessor">#ifndef STBI_ASSERT</span></div> +<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="preprocessor"></span><span class="preprocessor">#include <assert.h></span></div> +<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="preprocessor">#define STBI_ASSERT(x) assert(x)</span></div> +<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="preprocessor">#ifndef _MSC_VER</span></div> +<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="preprocessor"></span><span class="preprocessor">#ifdef __cplusplus</span></div> +<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi_inline inline</span></div> <div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> -<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y))))</span></div> +<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi_inline</span></div> <div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="preprocessor">#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED))</span></div> -<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="preprocessor"></span><span class="comment">// ok</span></div> -<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="preprocessor">#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED)</span></div> -<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="preprocessor"></span><span class="comment">// ok</span></div> -<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="preprocessor">#else</span></div> -<div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="preprocessor"></span><span class="preprocessor">#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)."</span></div> -<div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="preprocessor">#ifndef STBI_MALLOC</span></div> -<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_MALLOC(sz) malloc(sz)</span></div> -<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_REALLOC(p,newsz) realloc(p,newsz)</span></div> -<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_FREE(p) free(p)</span></div> -<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="preprocessor">#ifndef STBI_REALLOC_SIZED</span></div> -<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz)</span></div> -<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment">// x86/x64 detection</span></div> -<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="preprocessor">#if defined(__x86_64__) || defined(_M_X64)</span></div> -<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__X64_TARGET</span></div> -<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(__i386) || defined(_M_IX86)</span></div> -<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__X86_TARGET</span></div> +<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> +<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi_inline __forceinline</span></div> +<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> +<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> stbi__uint16;</div> +<div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">short</span> stbi__int16;</div> +<div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> stbi__uint32;</div> +<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">int</span> stbi__int32;</div> +<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="preprocessor"></span><span class="preprocessor">#include <stdint.h></span></div> +<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="keyword">typedef</span> uint16_t stbi__uint16;</div> +<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="keyword">typedef</span> int16_t stbi__int16;</div> +<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="keyword">typedef</span> uint32_t stbi__uint32;</div> +<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="keyword">typedef</span> int32_t stbi__int32;</div> +<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="comment">// should produce compiler error if size is wrong</span></div> +<div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> validate_uint32[<span class="keyword">sizeof</span>(stbi__uint32) == 4 ? 1 : -1];</div> +<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> </div> +<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> +<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NOTUSED(v) (void)(v)</span></div> +<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> +<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_NOTUSED(v) (void)sizeof(v)</span></div> <div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="preprocessor">#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD)</span></div> -<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="preprocessor"></span><span class="comment">// gcc doesn't support sse2 intrinsics unless you compile with -msse2,</span></div> -<div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="comment">// which in turn means it gets to use SSE2 everywhere. This is unfortunate,</span></div> -<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="comment">// but previous attempts to provide the SSE2 functions with runtime</span></div> -<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="comment">// detection caused numerous issues. The way architecture extensions are</span></div> -<div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment">// exposed in GCC/Clang is, sadly, not really suited for one-file libs.</span></div> -<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment">// New behavior: if compiled with -msse2, we use SSE2 without any</span></div> -<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment">// detection; if not, we don't use it at all.</span></div> -<div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="preprocessor">#define STBI_NO_SIMD</span></div> -<div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="preprocessor">#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD)</span></div> -<div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="preprocessor"></span><span class="comment">// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET</span></div> -<div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="comment">//</span></div> -<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="comment">// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the</span></div> -<div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="comment">// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant.</span></div> -<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment">// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not</span></div> -<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="comment">// simultaneously enabling "-mstackrealign".</span></div> -<div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="comment">//</span></div> -<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="comment">// See https://github.com/nothings/stb/issues/81 for more information.</span></div> -<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment">//</span></div> -<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="comment">// So default to no SSE2 on 32-bit MinGW. If you've read this far and added</span></div> -<div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="comment">// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2.</span></div> -<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="preprocessor">#define STBI_NO_SIMD</span></div> -<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="preprocessor">#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET))</span></div> -<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_SSE2</span></div> -<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="preprocessor"></span><span class="preprocessor">#include <emmintrin.h></span></div> -<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> </div> -<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> -<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="preprocessor">#if _MSC_VER >= 1400 // not VC6</span></div> -<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="preprocessor"></span><span class="preprocessor">#include <intrin.h></span> <span class="comment">// __cpuid</span></div> -<div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__cpuid3(<span class="keywordtype">void</span>)</div> -<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> {</div> -<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="keywordtype">int</span> info[4];</div> -<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  __cpuid(info,1);</div> -<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordflow">return</span> info[3];</div> -<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> }</div> -<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="preprocessor">#else</span></div> -<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__cpuid3(<span class="keywordtype">void</span>)</div> -<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> {</div> -<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keywordtype">int</span> res;</div> -<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  __asm {</div> -<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  mov eax,1</div> -<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  cpuid</div> -<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  mov res,edx</div> -<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  }</div> -<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">return</span> res;</div> -<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> }</div> -<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name</span></div> -<div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__sse2_available(<span class="keywordtype">void</span>)</div> -<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> {</div> -<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="keywordtype">int</span> info3 = stbi__cpuid3();</div> -<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keywordflow">return</span> ((info3 >> 26) & 1) != 0;</div> -<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> }</div> -<div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="preprocessor">#else // assume GCC-style if not VC++</span></div> -<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))</span></div> -<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__sse2_available(<span class="keywordtype">void</span>)</div> -<div class="line"><a name="l00652"></a><span class="lineno"> 652</span> {</div> -<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="comment">// If we're even attempting to compile this on GCC/Clang, that means</span></div> -<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="comment">// -msse2 is on, which means the compiler is allowed to use SSE2</span></div> -<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="comment">// instructions at will, and so are we.</span></div> -<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> }</div> -<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment">// ARM NEON</span></div> -<div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="preprocessor">#if defined(STBI_NO_SIMD) && defined(STBI_NEON)</span></div> -<div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="preprocessor"></span><span class="preprocessor">#undef STBI_NEON</span></div> -<div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> -<div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="preprocessor"></span><span class="preprocessor">#include <arm_neon.h></span></div> -<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment">// assume GCC or Clang on ARM targets</span></div> -<div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))</span></div> -<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="preprocessor">#ifndef STBI_SIMD_ALIGN</span></div> -<div class="line"><a name="l00673"></a><span class="lineno"> 673</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) type name</span></div> -<div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00677"></a><span class="lineno"> 677</span> <span class="comment">//</span></div> -<div class="line"><a name="l00678"></a><span class="lineno"> 678</span> <span class="comment">// stbi__context struct and start_xxx functions</span></div> -<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> </div> -<div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="comment">// stbi__context structure is our basic context used by all images, so it</span></div> -<div class="line"><a name="l00681"></a><span class="lineno"> 681</span> <span class="comment">// contains all the IO context, plus some basic image information</span></div> -<div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l00683"></a><span class="lineno"> 683</span> {</div> -<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  stbi__uint32 img_x, img_y;</div> -<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="keywordtype">int</span> img_n, img_out_n;</div> -<div class="line"><a name="l00686"></a><span class="lineno"> 686</span> </div> -<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> io;</div> -<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keywordtype">void</span> *io_user_data;</div> -<div class="line"><a name="l00689"></a><span class="lineno"> 689</span> </div> -<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keywordtype">int</span> read_from_callbacks;</div> -<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordtype">int</span> buflen;</div> -<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> buffer_start[128];</div> -<div class="line"><a name="l00693"></a><span class="lineno"> 693</span> </div> -<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *img_buffer, *img_buffer_end;</div> -<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *img_buffer_original, *img_buffer_original_end;</div> -<div class="line"><a name="l00696"></a><span class="lineno"> 696</span> } stbi__context;</div> -<div class="line"><a name="l00697"></a><span class="lineno"> 697</span> </div> -<div class="line"><a name="l00698"></a><span class="lineno"> 698</span> </div> -<div class="line"><a name="l00699"></a><span class="lineno"> 699</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__refill_buffer(stbi__context *s);</div> -<div class="line"><a name="l00700"></a><span class="lineno"> 700</span> </div> -<div class="line"><a name="l00701"></a><span class="lineno"> 701</span> <span class="comment">// initialize a memory-decode context</span></div> -<div class="line"><a name="l00702"></a><span class="lineno"> 702</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__start_mem(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len)</div> -<div class="line"><a name="l00703"></a><span class="lineno"> 703</span> {</div> -<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  s->io.read = NULL;</div> -<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  s->read_from_callbacks = 0;</div> -<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  s->img_buffer = s->img_buffer_original = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer;</div> -<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  s->img_buffer_end = s->img_buffer_original_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer+len;</div> -<div class="line"><a name="l00708"></a><span class="lineno"> 708</span> }</div> -<div class="line"><a name="l00709"></a><span class="lineno"> 709</span> </div> -<div class="line"><a name="l00710"></a><span class="lineno"> 710</span> <span class="comment">// initialize a callback-based context</span></div> -<div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__start_callbacks(stbi__context *s, <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *c, <span class="keywordtype">void</span> *user)</div> -<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> {</div> -<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  s->io = *c;</div> -<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  s->io_user_data = user;</div> -<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  s->buflen = <span class="keyword">sizeof</span>(s->buffer_start);</div> -<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  s->read_from_callbacks = 1;</div> -<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  s->img_buffer_original = s->buffer_start;</div> -<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  stbi__refill_buffer(s);</div> -<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  s->img_buffer_original_end = s->img_buffer_end;</div> -<div class="line"><a name="l00720"></a><span class="lineno"> 720</span> }</div> -<div class="line"><a name="l00721"></a><span class="lineno"> 721</span> </div> -<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00724"></a><span class="lineno"> 724</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__stdio_read(<span class="keywordtype">void</span> *user, <span class="keywordtype">char</span> *data, <span class="keywordtype">int</span> size)</div> -<div class="line"><a name="l00725"></a><span class="lineno"> 725</span> {</div> -<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) fread(data,1,size,(FILE*) user);</div> -<div class="line"><a name="l00727"></a><span class="lineno"> 727</span> }</div> +<div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> +<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_HAS_LROTL</span></div> +<div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="preprocessor">#ifdef STBI_HAS_LROTL</span></div> +<div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi_lrot(x, y) _lrotl(x, y)</span></div> +<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> +<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi_lrot(x, y) (((x) << (y)) | ((x) >> (32 - (y))))</span></div> +<div class="line"><a name="l00596"></a><span class="lineno"> 596</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00597"></a><span class="lineno"> 597</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="preprocessor">#if defined(STBI_MALLOC) && defined(STBI_FREE) && \</span></div> +<div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="preprocessor"> (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED))</span></div> +<div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="preprocessor"></span><span class="comment">// ok</span></div> +<div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="preprocessor">#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && \</span></div> +<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="preprocessor"> !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED)</span></div> +<div class="line"><a name="l00603"></a><span class="lineno"> 603</span> <span class="preprocessor"></span><span class="comment">// ok</span></div> +<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="preprocessor"></span><span class="preprocessor">#error \</span></div> +<div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="preprocessor"> "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)."</span></div> +<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="preprocessor">#ifndef STBI_MALLOC</span></div> +<div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_MALLOC(sz) malloc(sz)</span></div> +<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_REALLOC(p, newsz) realloc(p, newsz)</span></div> +<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_FREE(p) free(p)</span></div> +<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="preprocessor">#ifndef STBI_REALLOC_SIZED</span></div> +<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_REALLOC_SIZED(p, oldsz, newsz) STBI_REALLOC(p, newsz)</span></div> +<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="comment">// x86/x64 detection</span></div> +<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="preprocessor">#if defined(__x86_64__) || defined(_M_X64)</span></div> +<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__X64_TARGET</span></div> +<div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(__i386) || defined(_M_IX86)</span></div> +<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__X86_TARGET</span></div> +<div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="preprocessor">#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && \</span></div> +<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="preprocessor"> !defined(STBI_NO_SIMD)</span></div> +<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="preprocessor"></span><span class="comment">// gcc doesn't support sse2 intrinsics unless you compile with -msse2,</span></div> +<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> <span class="comment">// which in turn means it gets to use SSE2 everywhere. This is unfortunate,</span></div> +<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment">// but previous attempts to provide the SSE2 functions with runtime</span></div> +<div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment">// detection caused numerous issues. The way architecture extensions are</span></div> +<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment">// exposed in GCC/Clang is, sadly, not really suited for one-file libs.</span></div> +<div class="line"><a name="l00633"></a><span class="lineno"> 633</span> <span class="comment">// New behavior: if compiled with -msse2, we use SSE2 without any</span></div> +<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="comment">// detection; if not, we don't use it at all.</span></div> +<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="preprocessor">#define STBI_NO_SIMD</span></div> +<div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="preprocessor">#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && \</span></div> +<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="preprocessor"> !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD)</span></div> +<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="preprocessor"></span><span class="comment">// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid</span></div> +<div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment">// STBI__X64_TARGET</span></div> +<div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="comment">//</span></div> +<div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="comment">// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the</span></div> +<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment">// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant.</span></div> +<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment">// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not</span></div> +<div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="comment">// simultaneously enabling "-mstackrealign".</span></div> +<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="comment">//</span></div> +<div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="comment">// See https://github.com/nothings/stb/issues/81 for more information.</span></div> +<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="comment">//</span></div> +<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="comment">// So default to no SSE2 on 32-bit MinGW. If you've read this far and added</span></div> +<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment">// -mstackrealign to your build settings, feel free to #define</span></div> +<div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="comment">// STBI_MINGW_ENABLE_SSE2.</span></div> +<div class="line"><a name="l00653"></a><span class="lineno"> 653</span> <span class="preprocessor">#define STBI_NO_SIMD</span></div> +<div class="line"><a name="l00654"></a><span class="lineno"> 654</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="preprocessor">#if !defined(STBI_NO_SIMD) && \</span></div> +<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="preprocessor"> (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET))</span></div> +<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_SSE2</span></div> +<div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <span class="preprocessor"></span><span class="preprocessor">#include <emmintrin.h></span></div> +<div class="line"><a name="l00660"></a><span class="lineno"> 660</span> </div> +<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> +<div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00663"></a><span class="lineno"> 663</span> <span class="preprocessor">#if _MSC_VER >= 1400 // not VC6</span></div> +<div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="preprocessor"></span><span class="preprocessor">#include <intrin.h></span> <span class="comment">// __cpuid</span></div> +<div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__cpuid3(<span class="keywordtype">void</span>)</div> +<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> {</div> +<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <span class="keywordtype">int</span> info[4];</div> +<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  __cpuid(info, 1);</div> +<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="keywordflow">return</span> info[3];</div> +<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> }</div> +<div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__cpuid3(<span class="keywordtype">void</span>)</div> +<div class="line"><a name="l00673"></a><span class="lineno"> 673</span> {</div> +<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="keywordtype">int</span> res;</div> +<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  __asm {</div> +<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  mov eax,1</div> +<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  cpuid</div> +<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  mov res,edx</div> +<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  }</div> +<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="keywordflow">return</span> res;</div> +<div class="line"><a name="l00681"></a><span class="lineno"> 681</span> }</div> +<div class="line"><a name="l00682"></a><span class="lineno"> 682</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00683"></a><span class="lineno"> 683</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name</span></div> +<div class="line"><a name="l00685"></a><span class="lineno"> 685</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00686"></a><span class="lineno"> 686</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__sse2_available(<span class="keywordtype">void</span>)</div> +<div class="line"><a name="l00687"></a><span class="lineno"> 687</span> {</div> +<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keywordtype">int</span> info3 = stbi__cpuid3();</div> +<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="keywordflow">return</span> ((info3 >> 26) & 1) != 0;</div> +<div class="line"><a name="l00690"></a><span class="lineno"> 690</span> }</div> +<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="preprocessor">#else // assume GCC-style if not VC++</span></div> +<div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))</span></div> +<div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00694"></a><span class="lineno"> 694</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__sse2_available(<span class="keywordtype">void</span>)</div> +<div class="line"><a name="l00695"></a><span class="lineno"> 695</span> {</div> +<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="comment">// If we're even attempting to compile this on GCC/Clang, that means</span></div> +<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="comment">// -msse2 is on, which means the compiler is allowed to use SSE2</span></div> +<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="comment">// instructions at will, and so are we.</span></div> +<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l00700"></a><span class="lineno"> 700</span> }</div> +<div class="line"><a name="l00701"></a><span class="lineno"> 701</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00702"></a><span class="lineno"> 702</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00703"></a><span class="lineno"> 703</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00704"></a><span class="lineno"> 704</span> <span class="comment">// ARM NEON</span></div> +<div class="line"><a name="l00705"></a><span class="lineno"> 705</span> <span class="preprocessor">#if defined(STBI_NO_SIMD) && defined(STBI_NEON)</span></div> +<div class="line"><a name="l00706"></a><span class="lineno"> 706</span> <span class="preprocessor"></span><span class="preprocessor">#undef STBI_NEON</span></div> +<div class="line"><a name="l00707"></a><span class="lineno"> 707</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00708"></a><span class="lineno"> 708</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00709"></a><span class="lineno"> 709</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> +<div class="line"><a name="l00710"></a><span class="lineno"> 710</span> <span class="preprocessor"></span><span class="preprocessor">#include <arm_neon.h></span></div> +<div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="comment">// assume GCC or Clang on ARM targets</span></div> +<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16)))</span></div> +<div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00714"></a><span class="lineno"> 714</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="preprocessor">#ifndef STBI_SIMD_ALIGN</span></div> +<div class="line"><a name="l00716"></a><span class="lineno"> 716</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI_SIMD_ALIGN(type, name) type name</span></div> +<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="comment">//</span></div> +<div class="line"><a name="l00721"></a><span class="lineno"> 721</span> <span class="comment">// stbi__context struct and start_xxx functions</span></div> +<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> </div> +<div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="comment">// stbi__context structure is our basic context used by all images, so it</span></div> +<div class="line"><a name="l00724"></a><span class="lineno"> 724</span> <span class="comment">// contains all the IO context, plus some basic image information</span></div> +<div class="line"><a name="l00725"></a><span class="lineno"> 725</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  stbi__uint32 img_x, img_y;</div> +<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="keywordtype">int</span> img_n, img_out_n;</div> <div class="line"><a name="l00728"></a><span class="lineno"> 728</span> </div> -<div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__stdio_skip(<span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> n)</div> -<div class="line"><a name="l00730"></a><span class="lineno"> 730</span> {</div> -<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  fseek((FILE*) user, n, SEEK_CUR);</div> -<div class="line"><a name="l00732"></a><span class="lineno"> 732</span> }</div> -<div class="line"><a name="l00733"></a><span class="lineno"> 733</span> </div> -<div class="line"><a name="l00734"></a><span class="lineno"> 734</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__stdio_eof(<span class="keywordtype">void</span> *user)</div> -<div class="line"><a name="l00735"></a><span class="lineno"> 735</span> {</div> -<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="keywordflow">return</span> feof((FILE*) user);</div> -<div class="line"><a name="l00737"></a><span class="lineno"> 737</span> }</div> -<div class="line"><a name="l00738"></a><span class="lineno"> 738</span> </div> -<div class="line"><a name="l00739"></a><span class="lineno"> 739</span> <span class="keyword">static</span> <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> stbi__stdio_callbacks =</div> -<div class="line"><a name="l00740"></a><span class="lineno"> 740</span> {</div> -<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  stbi__stdio_read,</div> -<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  stbi__stdio_skip,</div> -<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  stbi__stdio_eof,</div> -<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> };</div> -<div class="line"><a name="l00745"></a><span class="lineno"> 745</span> </div> -<div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__start_file(stbi__context *s, FILE *f)</div> -<div class="line"><a name="l00747"></a><span class="lineno"> 747</span> {</div> -<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  stbi__start_callbacks(s, &stbi__stdio_callbacks, (<span class="keywordtype">void</span> *) f);</div> +<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> io;</div> +<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keywordtype">void</span> *io_user_data;</div> +<div class="line"><a name="l00731"></a><span class="lineno"> 731</span> </div> +<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="keywordtype">int</span> read_from_callbacks;</div> +<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="keywordtype">int</span> buflen;</div> +<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> buffer_start[128];</div> +<div class="line"><a name="l00735"></a><span class="lineno"> 735</span> </div> +<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *img_buffer, *img_buffer_end;</div> +<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *img_buffer_original, *img_buffer_original_end;</div> +<div class="line"><a name="l00738"></a><span class="lineno"> 738</span> } stbi__context;</div> +<div class="line"><a name="l00739"></a><span class="lineno"> 739</span> </div> +<div class="line"><a name="l00740"></a><span class="lineno"> 740</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__refill_buffer(stbi__context *s);</div> +<div class="line"><a name="l00741"></a><span class="lineno"> 741</span> </div> +<div class="line"><a name="l00742"></a><span class="lineno"> 742</span> <span class="comment">// initialize a memory-decode context</span></div> +<div class="line"><a name="l00743"></a><span class="lineno"> 743</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__start_mem(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len)</div> +<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> {</div> +<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  s->io.read = NULL;</div> +<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  s->read_from_callbacks = 0;</div> +<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  s->img_buffer = s->img_buffer_original = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer;</div> +<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  s->img_buffer_end = s->img_buffer_original_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer + len;</div> <div class="line"><a name="l00749"></a><span class="lineno"> 749</span> }</div> <div class="line"><a name="l00750"></a><span class="lineno"> 750</span> </div> -<div class="line"><a name="l00751"></a><span class="lineno"> 751</span> <span class="comment">//static void stop_file(stbi__context *s) { }</span></div> -<div class="line"><a name="l00752"></a><span class="lineno"> 752</span> </div> -<div class="line"><a name="l00753"></a><span class="lineno"> 753</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> -<div class="line"><a name="l00754"></a><span class="lineno"> 754</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00755"></a><span class="lineno"> 755</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__rewind(stbi__context *s)</div> -<div class="line"><a name="l00756"></a><span class="lineno"> 756</span> {</div> -<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <span class="comment">// conceptually rewind SHOULD rewind to the beginning of the stream,</span></div> -<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  <span class="comment">// but we just rewind to the beginning of the initial buffer, because</span></div> -<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="comment">// we only use it after doing 'test', which only ever looks at at most 92 bytes</span></div> -<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  s->img_buffer = s->img_buffer_original;</div> -<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  s->img_buffer_end = s->img_buffer_original_end;</div> +<div class="line"><a name="l00751"></a><span class="lineno"> 751</span> <span class="comment">// initialize a callback-based context</span></div> +<div class="line"><a name="l00752"></a><span class="lineno"> 752</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__start_callbacks(stbi__context *s, <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *c,</div> +<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="keywordtype">void</span> *user)</div> +<div class="line"><a name="l00754"></a><span class="lineno"> 754</span> {</div> +<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  s->io = *c;</div> +<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  s->io_user_data = user;</div> +<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  s->buflen = <span class="keyword">sizeof</span>(s->buffer_start);</div> +<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  s->read_from_callbacks = 1;</div> +<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  s->img_buffer_original = s->buffer_start;</div> +<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  stbi__refill_buffer(s);</div> +<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  s->img_buffer_original_end = s->img_buffer_end;</div> <div class="line"><a name="l00762"></a><span class="lineno"> 762</span> }</div> <div class="line"><a name="l00763"></a><span class="lineno"> 763</span> </div> -<div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="keyword">enum</span></div> -<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> {</div> -<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  STBI_ORDER_RGB,</div> -<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  STBI_ORDER_BGR</div> -<div class="line"><a name="l00768"></a><span class="lineno"> 768</span> };</div> -<div class="line"><a name="l00769"></a><span class="lineno"> 769</span> </div> -<div class="line"><a name="l00770"></a><span class="lineno"> 770</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l00771"></a><span class="lineno"> 771</span> {</div> -<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordtype">int</span> bits_per_channel;</div> -<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="keywordtype">int</span> num_channels;</div> -<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordtype">int</span> channel_order;</div> -<div class="line"><a name="l00775"></a><span class="lineno"> 775</span> } stbi__result_info;</div> -<div class="line"><a name="l00776"></a><span class="lineno"> 776</span> </div> -<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="preprocessor">#ifndef STBI_NO_JPEG</span></div> -<div class="line"><a name="l00778"></a><span class="lineno"> 778</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_test(stbi__context *s);</div> -<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__jpeg_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00780"></a><span class="lineno"> 780</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00782"></a><span class="lineno"> 782</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00783"></a><span class="lineno"> 783</span> <span class="preprocessor">#ifndef STBI_NO_PNG</span></div> -<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_test(stbi__context *s);</div> -<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__png_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00789"></a><span class="lineno"> 789</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> -<div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_test(stbi__context *s);</div> -<div class="line"><a name="l00791"></a><span class="lineno"> 791</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__bmp_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00792"></a><span class="lineno"> 792</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00793"></a><span class="lineno"> 793</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00794"></a><span class="lineno"> 794</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> <span class="preprocessor">#ifndef STBI_NO_TGA</span></div> -<div class="line"><a name="l00796"></a><span class="lineno"> 796</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_test(stbi__context *s);</div> -<div class="line"><a name="l00797"></a><span class="lineno"> 797</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__tga_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00798"></a><span class="lineno"> 798</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00799"></a><span class="lineno"> 799</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00800"></a><span class="lineno"> 800</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00801"></a><span class="lineno"> 801</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> -<div class="line"><a name="l00802"></a><span class="lineno"> 802</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_test(stbi__context *s);</div> -<div class="line"><a name="l00803"></a><span class="lineno"> 803</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__psd_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri, <span class="keywordtype">int</span> bpc);</div> -<div class="line"><a name="l00804"></a><span class="lineno"> 804</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00805"></a><span class="lineno"> 805</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00806"></a><span class="lineno"> 806</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00807"></a><span class="lineno"> 807</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l00808"></a><span class="lineno"> 808</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_test(stbi__context *s);</div> -<div class="line"><a name="l00809"></a><span class="lineno"> 809</span> <span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__hdr_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00810"></a><span class="lineno"> 810</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00811"></a><span class="lineno"> 811</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00812"></a><span class="lineno"> 812</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00813"></a><span class="lineno"> 813</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> -<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_test(stbi__context *s);</div> -<div class="line"><a name="l00815"></a><span class="lineno"> 815</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pic_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00817"></a><span class="lineno"> 817</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00818"></a><span class="lineno"> 818</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="preprocessor">#ifndef STBI_NO_GIF</span></div> -<div class="line"><a name="l00820"></a><span class="lineno"> 820</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_test(stbi__context *s);</div> -<div class="line"><a name="l00821"></a><span class="lineno"> 821</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__gif_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00822"></a><span class="lineno"> 822</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00823"></a><span class="lineno"> 823</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00824"></a><span class="lineno"> 824</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00825"></a><span class="lineno"> 825</span> <span class="preprocessor">#ifndef STBI_NO_PNM</span></div> -<div class="line"><a name="l00826"></a><span class="lineno"> 826</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_test(stbi__context *s);</div> -<div class="line"><a name="l00827"></a><span class="lineno"> 827</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pnm_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> -<div class="line"><a name="l00828"></a><span class="lineno"> 828</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> -<div class="line"><a name="l00829"></a><span class="lineno"> 829</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00830"></a><span class="lineno"> 830</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00831"></a><span class="lineno"> 831</span> <span class="comment">// this is not threadsafe</span></div> -<div class="line"><a name="l00832"></a><span class="lineno"> 832</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *stbi__g_failure_reason;</div> -<div class="line"><a name="l00833"></a><span class="lineno"> 833</span> </div> -<div class="line"><a name="l00834"></a><span class="lineno"> 834</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aa874b3ba909f3281d499894909678336">stbi_failure_reason</a>(<span class="keywordtype">void</span>)</div> -<div class="line"><a name="l00835"></a><span class="lineno"> 835</span> {</div> -<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="keywordflow">return</span> stbi__g_failure_reason;</div> -<div class="line"><a name="l00837"></a><span class="lineno"> 837</span> }</div> -<div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div> -<div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__err(<span class="keyword">const</span> <span class="keywordtype">char</span> *str)</div> -<div class="line"><a name="l00840"></a><span class="lineno"> 840</span> {</div> -<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  stbi__g_failure_reason = str;</div> -<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l00843"></a><span class="lineno"> 843</span> }</div> -<div class="line"><a name="l00844"></a><span class="lineno"> 844</span> </div> -<div class="line"><a name="l00845"></a><span class="lineno"> 845</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc(<span class="keywordtype">size_t</span> size)</div> -<div class="line"><a name="l00846"></a><span class="lineno"> 846</span> {</div> -<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  <span class="keywordflow">return</span> STBI_MALLOC(size);</div> -<div class="line"><a name="l00848"></a><span class="lineno"> 848</span> }</div> -<div class="line"><a name="l00849"></a><span class="lineno"> 849</span> </div> -<div class="line"><a name="l00850"></a><span class="lineno"> 850</span> <span class="comment">// stb_image uses ints pervasively, including for offset calculations.</span></div> -<div class="line"><a name="l00851"></a><span class="lineno"> 851</span> <span class="comment">// therefore the largest decoded image size we can support with the</span></div> -<div class="line"><a name="l00852"></a><span class="lineno"> 852</span> <span class="comment">// current code, even on 64-bit targets, is INT_MAX. this is not a</span></div> -<div class="line"><a name="l00853"></a><span class="lineno"> 853</span> <span class="comment">// significant limitation for the intended use case.</span></div> -<div class="line"><a name="l00854"></a><span class="lineno"> 854</span> <span class="comment">//</span></div> -<div class="line"><a name="l00855"></a><span class="lineno"> 855</span> <span class="comment">// we do, however, need to make sure our size calculations don't</span></div> -<div class="line"><a name="l00856"></a><span class="lineno"> 856</span> <span class="comment">// overflow. hence a few helper functions for size calculations that</span></div> -<div class="line"><a name="l00857"></a><span class="lineno"> 857</span> <span class="comment">// multiply integers together, making sure that they're non-negative</span></div> -<div class="line"><a name="l00858"></a><span class="lineno"> 858</span> <span class="comment">// and no overflow occurs.</span></div> -<div class="line"><a name="l00859"></a><span class="lineno"> 859</span> </div> -<div class="line"><a name="l00860"></a><span class="lineno"> 860</span> <span class="comment">// return 1 if the sum is valid, 0 on overflow.</span></div> -<div class="line"><a name="l00861"></a><span class="lineno"> 861</span> <span class="comment">// negative terms are considered invalid.</span></div> -<div class="line"><a name="l00862"></a><span class="lineno"> 862</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__addsizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b)</div> -<div class="line"><a name="l00863"></a><span class="lineno"> 863</span> {</div> -<div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <span class="keywordflow">if</span> (b < 0) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="comment">// now 0 <= b <= INT_MAX, hence also</span></div> -<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  <span class="comment">// 0 <= INT_MAX - b <= INTMAX.</span></div> -<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <span class="comment">// And "a + b <= INT_MAX" (which might overflow) is the</span></div> -<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="comment">// same as a <= INT_MAX - b (no overflow)</span></div> -<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  <span class="keywordflow">return</span> a <= INT_MAX - b;</div> -<div class="line"><a name="l00870"></a><span class="lineno"> 870</span> }</div> -<div class="line"><a name="l00871"></a><span class="lineno"> 871</span> </div> -<div class="line"><a name="l00872"></a><span class="lineno"> 872</span> <span class="comment">// returns 1 if the product is valid, 0 on overflow.</span></div> -<div class="line"><a name="l00873"></a><span class="lineno"> 873</span> <span class="comment">// negative factors are considered invalid.</span></div> -<div class="line"><a name="l00874"></a><span class="lineno"> 874</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mul2sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b)</div> -<div class="line"><a name="l00875"></a><span class="lineno"> 875</span> {</div> -<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <span class="keywordflow">if</span> (a < 0 || b < 0) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="keywordflow">if</span> (b == 0) <span class="keywordflow">return</span> 1; <span class="comment">// mul-by-0 is always safe</span></div> -<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  <span class="comment">// portable way to check for no overflows in a*b</span></div> -<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <span class="keywordflow">return</span> a <= INT_MAX/b;</div> -<div class="line"><a name="l00880"></a><span class="lineno"> 880</span> }</div> -<div class="line"><a name="l00881"></a><span class="lineno"> 881</span> </div> -<div class="line"><a name="l00882"></a><span class="lineno"> 882</span> <span class="comment">// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow</span></div> -<div class="line"><a name="l00883"></a><span class="lineno"> 883</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mad2sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> add)</div> -<div class="line"><a name="l00884"></a><span class="lineno"> 884</span> {</div> -<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="keywordflow">return</span> stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add);</div> -<div class="line"><a name="l00886"></a><span class="lineno"> 886</span> }</div> -<div class="line"><a name="l00887"></a><span class="lineno"> 887</span> </div> -<div class="line"><a name="l00888"></a><span class="lineno"> 888</span> <span class="comment">// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow</span></div> -<div class="line"><a name="l00889"></a><span class="lineno"> 889</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mad3sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> add)</div> -<div class="line"><a name="l00890"></a><span class="lineno"> 890</span> {</div> -<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <span class="keywordflow">return</span> stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) &&</div> -<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  stbi__addsizes_valid(a*b*c, add);</div> -<div class="line"><a name="l00893"></a><span class="lineno"> 893</span> }</div> -<div class="line"><a name="l00894"></a><span class="lineno"> 894</span> </div> -<div class="line"><a name="l00895"></a><span class="lineno"> 895</span> <span class="comment">// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow</span></div> -<div class="line"><a name="l00896"></a><span class="lineno"> 896</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mad4sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> d, <span class="keywordtype">int</span> add)</div> -<div class="line"><a name="l00897"></a><span class="lineno"> 897</span> {</div> -<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  <span class="keywordflow">return</span> stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) &&</div> -<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>  stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add);</div> -<div class="line"><a name="l00900"></a><span class="lineno"> 900</span> }</div> -<div class="line"><a name="l00901"></a><span class="lineno"> 901</span> </div> -<div class="line"><a name="l00902"></a><span class="lineno"> 902</span> <span class="comment">// mallocs with size overflow checking</span></div> -<div class="line"><a name="l00903"></a><span class="lineno"> 903</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc_mad2(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> add)</div> -<div class="line"><a name="l00904"></a><span class="lineno"> 904</span> {</div> -<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  <span class="keywordflow">if</span> (!stbi__mad2sizes_valid(a, b, add)) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>  <span class="keywordflow">return</span> stbi__malloc(a*b + add);</div> -<div class="line"><a name="l00907"></a><span class="lineno"> 907</span> }</div> -<div class="line"><a name="l00908"></a><span class="lineno"> 908</span> </div> -<div class="line"><a name="l00909"></a><span class="lineno"> 909</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc_mad3(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> add)</div> -<div class="line"><a name="l00910"></a><span class="lineno"> 910</span> {</div> -<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(a, b, c, add)) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <span class="keywordflow">return</span> stbi__malloc(a*b*c + add);</div> -<div class="line"><a name="l00913"></a><span class="lineno"> 913</span> }</div> -<div class="line"><a name="l00914"></a><span class="lineno"> 914</span> </div> -<div class="line"><a name="l00915"></a><span class="lineno"> 915</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc_mad4(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> d, <span class="keywordtype">int</span> add)</div> -<div class="line"><a name="l00916"></a><span class="lineno"> 916</span> {</div> -<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  <span class="keywordflow">if</span> (!stbi__mad4sizes_valid(a, b, c, d, add)) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="keywordflow">return</span> stbi__malloc(a*b*c*d + add);</div> -<div class="line"><a name="l00919"></a><span class="lineno"> 919</span> }</div> -<div class="line"><a name="l00920"></a><span class="lineno"> 920</span> </div> -<div class="line"><a name="l00921"></a><span class="lineno"> 921</span> <span class="comment">// stbi__err - error</span></div> -<div class="line"><a name="l00922"></a><span class="lineno"> 922</span> <span class="comment">// stbi__errpf - error returning pointer to float</span></div> -<div class="line"><a name="l00923"></a><span class="lineno"> 923</span> <span class="comment">// stbi__errpuc - error returning pointer to unsigned char</span></div> -<div class="line"><a name="l00924"></a><span class="lineno"> 924</span> </div> -<div class="line"><a name="l00925"></a><span class="lineno"> 925</span> <span class="preprocessor">#ifdef STBI_NO_FAILURE_STRINGS</span></div> -<div class="line"><a name="l00926"></a><span class="lineno"> 926</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi__err(x,y) 0</span></div> -<div class="line"><a name="l00927"></a><span class="lineno"> 927</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(STBI_FAILURE_USERMSG)</span></div> -<div class="line"><a name="l00928"></a><span class="lineno"> 928</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi__err(x,y) stbi__err(y)</span></div> -<div class="line"><a name="l00929"></a><span class="lineno"> 929</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> -<div class="line"><a name="l00930"></a><span class="lineno"> 930</span> <span class="preprocessor"></span><span class="preprocessor"> #define stbi__err(x,y) stbi__err(x)</span></div> -<div class="line"><a name="l00931"></a><span class="lineno"> 931</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00932"></a><span class="lineno"> 932</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00933"></a><span class="lineno"> 933</span> <span class="preprocessor">#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL))</span></div> -<div class="line"><a name="l00934"></a><span class="lineno"> 934</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL))</span></div> -<div class="line"><a name="l00935"></a><span class="lineno"> 935</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00936"></a><span class="lineno"> 936</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ad3e11bb44412a7ba348acfbad09caacb">stbi_image_free</a>(<span class="keywordtype">void</span> *retval_from_stbi_load)</div> -<div class="line"><a name="l00937"></a><span class="lineno"> 937</span> {</div> -<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  STBI_FREE(retval_from_stbi_load);</div> -<div class="line"><a name="l00939"></a><span class="lineno"> 939</span> }</div> -<div class="line"><a name="l00940"></a><span class="lineno"> 940</span> </div> -<div class="line"><a name="l00941"></a><span class="lineno"> 941</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> -<div class="line"><a name="l00942"></a><span class="lineno"> 942</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__ldr_to_hdr(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp);</div> -<div class="line"><a name="l00943"></a><span class="lineno"> 943</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00944"></a><span class="lineno"> 944</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00945"></a><span class="lineno"> 945</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l00946"></a><span class="lineno"> 946</span> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__hdr_to_ldr(<span class="keywordtype">float</span> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp);</div> -<div class="line"><a name="l00947"></a><span class="lineno"> 947</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l00948"></a><span class="lineno"> 948</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00949"></a><span class="lineno"> 949</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__vertically_flip_on_load = 0;</div> -<div class="line"><a name="l00950"></a><span class="lineno"> 950</span> </div> -<div class="line"><a name="l00951"></a><span class="lineno"> 951</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab89c177fc52f1bb2dc1c05e48129a0a4">stbi_set_flip_vertically_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_flip)</div> -<div class="line"><a name="l00952"></a><span class="lineno"> 952</span> {</div> -<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  stbi__vertically_flip_on_load = flag_true_if_should_flip;</div> -<div class="line"><a name="l00954"></a><span class="lineno"> 954</span> }</div> -<div class="line"><a name="l00955"></a><span class="lineno"> 955</span> </div> -<div class="line"><a name="l00956"></a><span class="lineno"> 956</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__load_main(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri, <span class="keywordtype">int</span> bpc)</div> -<div class="line"><a name="l00957"></a><span class="lineno"> 957</span> {</div> -<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  memset(ri, 0, <span class="keyword">sizeof</span>(*ri)); <span class="comment">// make sure it's initialized if we add new fields</span></div> -<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  ri->bits_per_channel = 8; <span class="comment">// default is 8 so most paths don't have to be changed</span></div> -<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  ri->channel_order = STBI_ORDER_RGB; <span class="comment">// all current input & output are this, but this is here so we can add BGR order</span></div> -<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  ri->num_channels = 0;</div> -<div class="line"><a name="l00962"></a><span class="lineno"> 962</span> </div> -<div class="line"><a name="l00963"></a><span class="lineno"> 963</span> <span class="preprocessor"> #ifndef STBI_NO_JPEG</span></div> -<div class="line"><a name="l00964"></a><span class="lineno"> 964</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__jpeg_test(s)) <span class="keywordflow">return</span> stbi__jpeg_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00965"></a><span class="lineno"> 965</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00966"></a><span class="lineno"> 966</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_NO_PNG</span></div> -<div class="line"><a name="l00967"></a><span class="lineno"> 967</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__png_test(s)) <span class="keywordflow">return</span> stbi__png_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00968"></a><span class="lineno"> 968</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00969"></a><span class="lineno"> 969</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_NO_BMP</span></div> -<div class="line"><a name="l00970"></a><span class="lineno"> 970</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__bmp_test(s)) <span class="keywordflow">return</span> stbi__bmp_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00971"></a><span class="lineno"> 971</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00972"></a><span class="lineno"> 972</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_NO_GIF</span></div> -<div class="line"><a name="l00973"></a><span class="lineno"> 973</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__gif_test(s)) <span class="keywordflow">return</span> stbi__gif_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00974"></a><span class="lineno"> 974</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00975"></a><span class="lineno"> 975</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_NO_PSD</span></div> -<div class="line"><a name="l00976"></a><span class="lineno"> 976</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__psd_test(s)) <span class="keywordflow">return</span> stbi__psd_load(s,x,y,comp,req_comp, ri, bpc);</div> -<div class="line"><a name="l00977"></a><span class="lineno"> 977</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00978"></a><span class="lineno"> 978</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_NO_PIC</span></div> -<div class="line"><a name="l00979"></a><span class="lineno"> 979</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pic_test(s)) <span class="keywordflow">return</span> stbi__pic_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00980"></a><span class="lineno"> 980</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00981"></a><span class="lineno"> 981</span> <span class="preprocessor"></span><span class="preprocessor"> #ifndef STBI_NO_PNM</span></div> -<div class="line"><a name="l00982"></a><span class="lineno"> 982</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pnm_test(s)) <span class="keywordflow">return</span> stbi__pnm_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00983"></a><span class="lineno"> 983</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00984"></a><span class="lineno"> 984</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00985"></a><span class="lineno"> 985</span> <span class="preprocessor"> #ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l00986"></a><span class="lineno"> 986</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__hdr_test(s)) {</div> -<div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  <span class="keywordtype">float</span> *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  <span class="keywordflow">return</span> stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp);</div> -<div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  }</div> -<div class="line"><a name="l00990"></a><span class="lineno"> 990</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00991"></a><span class="lineno"> 991</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00992"></a><span class="lineno"> 992</span> <span class="preprocessor"> #ifndef STBI_NO_TGA</span></div> -<div class="line"><a name="l00993"></a><span class="lineno"> 993</span> <span class="preprocessor"></span> <span class="comment">// test tga last because it's a crappy test!</span></div> -<div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  <span class="keywordflow">if</span> (stbi__tga_test(s))</div> -<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="keywordflow">return</span> stbi__tga_load(s,x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l00996"></a><span class="lineno"> 996</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l00997"></a><span class="lineno"> 997</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unknown image type"</span>, <span class="stringliteral">"Image not of any known type, or corrupt"</span>);</div> -<div class="line"><a name="l00999"></a><span class="lineno"> 999</span> }</div> -<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span> </div> -<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__convert_16_to_8(stbi__uint16 *orig, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> channels)</div> -<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span> {</div> -<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keywordtype">int</span> img_len = w * h * channels;</div> -<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *reduced;</div> -<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span> </div> -<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  reduced = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc(img_len);</div> -<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  <span class="keywordflow">if</span> (reduced == NULL) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span> </div> -<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  <span class="keywordflow">for</span> (i = 0; i < img_len; ++i)</div> -<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  reduced[i] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((orig[i] >> 8) & 0xFF); <span class="comment">// top half of each byte is sufficient approx of 16->8 bit scaling</span></div> -<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span> </div> -<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  STBI_FREE(orig);</div> -<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  <span class="keywordflow">return</span> reduced;</div> -<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span> }</div> -<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span> </div> -<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span> <span class="keyword">static</span> stbi__uint16 *stbi__convert_8_to_16(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *orig, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> channels)</div> -<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span> {</div> -<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="keywordtype">int</span> img_len = w * h * channels;</div> -<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  stbi__uint16 *enlarged;</div> +<div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__stdio_read(<span class="keywordtype">void</span> *user, <span class="keywordtype">char</span> *data, <span class="keywordtype">int</span> size)</div> +<div class="line"><a name="l00767"></a><span class="lineno"> 767</span> {</div> +<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  <span class="keywordflow">return</span> (<span class="keywordtype">int</span>)fread(data, 1, size, (FILE *)user);</div> +<div class="line"><a name="l00769"></a><span class="lineno"> 769</span> }</div> +<div class="line"><a name="l00770"></a><span class="lineno"> 770</span> </div> +<div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__stdio_skip(<span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l00772"></a><span class="lineno"> 772</span> {</div> +<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  fseek((FILE *)user, n, SEEK_CUR);</div> +<div class="line"><a name="l00774"></a><span class="lineno"> 774</span> }</div> +<div class="line"><a name="l00775"></a><span class="lineno"> 775</span> </div> +<div class="line"><a name="l00776"></a><span class="lineno"> 776</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__stdio_eof(<span class="keywordtype">void</span> *user)</div> +<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> {</div> +<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="keywordflow">return</span> feof((FILE *)user);</div> +<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> }</div> +<div class="line"><a name="l00780"></a><span class="lineno"> 780</span> </div> +<div class="line"><a name="l00781"></a><span class="lineno"> 781</span> <span class="keyword">static</span> <a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> stbi__stdio_callbacks = {</div> +<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  stbi__stdio_read,</div> +<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  stbi__stdio_skip,</div> +<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  stbi__stdio_eof,</div> +<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> };</div> +<div class="line"><a name="l00786"></a><span class="lineno"> 786</span> </div> +<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__start_file(stbi__context *s, FILE *f)</div> +<div class="line"><a name="l00788"></a><span class="lineno"> 788</span> {</div> +<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  stbi__start_callbacks(s, &stbi__stdio_callbacks, (<span class="keywordtype">void</span> *)f);</div> +<div class="line"><a name="l00790"></a><span class="lineno"> 790</span> }</div> +<div class="line"><a name="l00791"></a><span class="lineno"> 791</span> </div> +<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="comment">// static void stop_file(stbi__context *s) { }</span></div> +<div class="line"><a name="l00793"></a><span class="lineno"> 793</span> </div> +<div class="line"><a name="l00794"></a><span class="lineno"> 794</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> +<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00796"></a><span class="lineno"> 796</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__rewind(stbi__context *s)</div> +<div class="line"><a name="l00797"></a><span class="lineno"> 797</span> {</div> +<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="comment">// conceptually rewind SHOULD rewind to the beginning of the stream,</span></div> +<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  <span class="comment">// but we just rewind to the beginning of the initial buffer, because</span></div> +<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="comment">// we only use it after doing 'test', which only ever looks at at most 92</span></div> +<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="comment">// bytes</span></div> +<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  s->img_buffer = s->img_buffer_original;</div> +<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  s->img_buffer_end = s->img_buffer_original_end;</div> +<div class="line"><a name="l00804"></a><span class="lineno"> 804</span> }</div> +<div class="line"><a name="l00805"></a><span class="lineno"> 805</span> </div> +<div class="line"><a name="l00806"></a><span class="lineno"> 806</span> <span class="keyword">enum</span> { STBI_ORDER_RGB, STBI_ORDER_BGR };</div> +<div class="line"><a name="l00807"></a><span class="lineno"> 807</span> </div> +<div class="line"><a name="l00808"></a><span class="lineno"> 808</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="keywordtype">int</span> bits_per_channel;</div> +<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keywordtype">int</span> num_channels;</div> +<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  <span class="keywordtype">int</span> channel_order;</div> +<div class="line"><a name="l00812"></a><span class="lineno"> 812</span> } stbi__result_info;</div> +<div class="line"><a name="l00813"></a><span class="lineno"> 813</span> </div> +<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="preprocessor">#ifndef STBI_NO_JPEG</span></div> +<div class="line"><a name="l00815"></a><span class="lineno"> 815</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_test(stbi__context *s);</div> +<div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__jpeg_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00818"></a><span class="lineno"> 818</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00819"></a><span class="lineno"> 819</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00820"></a><span class="lineno"> 820</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00821"></a><span class="lineno"> 821</span> <span class="preprocessor">#ifndef STBI_NO_PNG</span></div> +<div class="line"><a name="l00822"></a><span class="lineno"> 822</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_test(stbi__context *s);</div> +<div class="line"><a name="l00823"></a><span class="lineno"> 823</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__png_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00825"></a><span class="lineno"> 825</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00826"></a><span class="lineno"> 826</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00827"></a><span class="lineno"> 827</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00828"></a><span class="lineno"> 828</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> +<div class="line"><a name="l00829"></a><span class="lineno"> 829</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_test(stbi__context *s);</div> +<div class="line"><a name="l00830"></a><span class="lineno"> 830</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__bmp_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00832"></a><span class="lineno"> 832</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00833"></a><span class="lineno"> 833</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00834"></a><span class="lineno"> 834</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00835"></a><span class="lineno"> 835</span> <span class="preprocessor">#ifndef STBI_NO_TGA</span></div> +<div class="line"><a name="l00836"></a><span class="lineno"> 836</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_test(stbi__context *s);</div> +<div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__tga_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00839"></a><span class="lineno"> 839</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00840"></a><span class="lineno"> 840</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00841"></a><span class="lineno"> 841</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00842"></a><span class="lineno"> 842</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> +<div class="line"><a name="l00843"></a><span class="lineno"> 843</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_test(stbi__context *s);</div> +<div class="line"><a name="l00844"></a><span class="lineno"> 844</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__psd_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri, <span class="keywordtype">int</span> bpc);</div> +<div class="line"><a name="l00846"></a><span class="lineno"> 846</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00847"></a><span class="lineno"> 847</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00848"></a><span class="lineno"> 848</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00849"></a><span class="lineno"> 849</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l00850"></a><span class="lineno"> 850</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_test(stbi__context *s);</div> +<div class="line"><a name="l00851"></a><span class="lineno"> 851</span> <span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__hdr_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00853"></a><span class="lineno"> 853</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00854"></a><span class="lineno"> 854</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00855"></a><span class="lineno"> 855</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00856"></a><span class="lineno"> 856</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> +<div class="line"><a name="l00857"></a><span class="lineno"> 857</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_test(stbi__context *s);</div> +<div class="line"><a name="l00858"></a><span class="lineno"> 858</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pic_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00860"></a><span class="lineno"> 860</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00861"></a><span class="lineno"> 861</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00862"></a><span class="lineno"> 862</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00863"></a><span class="lineno"> 863</span> <span class="preprocessor">#ifndef STBI_NO_GIF</span></div> +<div class="line"><a name="l00864"></a><span class="lineno"> 864</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_test(stbi__context *s);</div> +<div class="line"><a name="l00865"></a><span class="lineno"> 865</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__gif_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00867"></a><span class="lineno"> 867</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00868"></a><span class="lineno"> 868</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00869"></a><span class="lineno"> 869</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00870"></a><span class="lineno"> 870</span> <span class="preprocessor">#ifndef STBI_NO_PNM</span></div> +<div class="line"><a name="l00871"></a><span class="lineno"> 871</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_test(stbi__context *s);</div> +<div class="line"><a name="l00872"></a><span class="lineno"> 872</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pnm_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri);</div> +<div class="line"><a name="l00874"></a><span class="lineno"> 874</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp);</div> +<div class="line"><a name="l00875"></a><span class="lineno"> 875</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00876"></a><span class="lineno"> 876</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00877"></a><span class="lineno"> 877</span> <span class="comment">// this is not threadsafe</span></div> +<div class="line"><a name="l00878"></a><span class="lineno"> 878</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *stbi__g_failure_reason;</div> +<div class="line"><a name="l00879"></a><span class="lineno"> 879</span> </div> +<div class="line"><a name="l00880"></a><span class="lineno"> 880</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aa874b3ba909f3281d499894909678336">stbi_failure_reason</a>(<span class="keywordtype">void</span>)</div> +<div class="line"><a name="l00881"></a><span class="lineno"> 881</span> {</div> +<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  <span class="keywordflow">return</span> stbi__g_failure_reason;</div> +<div class="line"><a name="l00883"></a><span class="lineno"> 883</span> }</div> +<div class="line"><a name="l00884"></a><span class="lineno"> 884</span> </div> +<div class="line"><a name="l00885"></a><span class="lineno"> 885</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__err(<span class="keyword">const</span> <span class="keywordtype">char</span> *str)</div> +<div class="line"><a name="l00886"></a><span class="lineno"> 886</span> {</div> +<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  stbi__g_failure_reason = str;</div> +<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l00889"></a><span class="lineno"> 889</span> }</div> +<div class="line"><a name="l00890"></a><span class="lineno"> 890</span> </div> +<div class="line"><a name="l00891"></a><span class="lineno"> 891</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc(<span class="keywordtype">size_t</span> size)</div> +<div class="line"><a name="l00892"></a><span class="lineno"> 892</span> {</div> +<div class="line"><a name="l00893"></a><span class="lineno"> 893</span>  <span class="keywordflow">return</span> STBI_MALLOC(size);</div> +<div class="line"><a name="l00894"></a><span class="lineno"> 894</span> }</div> +<div class="line"><a name="l00895"></a><span class="lineno"> 895</span> </div> +<div class="line"><a name="l00896"></a><span class="lineno"> 896</span> <span class="comment">// stb_image uses ints pervasively, including for offset calculations.</span></div> +<div class="line"><a name="l00897"></a><span class="lineno"> 897</span> <span class="comment">// therefore the largest decoded image size we can support with the</span></div> +<div class="line"><a name="l00898"></a><span class="lineno"> 898</span> <span class="comment">// current code, even on 64-bit targets, is INT_MAX. this is not a</span></div> +<div class="line"><a name="l00899"></a><span class="lineno"> 899</span> <span class="comment">// significant limitation for the intended use case.</span></div> +<div class="line"><a name="l00900"></a><span class="lineno"> 900</span> <span class="comment">//</span></div> +<div class="line"><a name="l00901"></a><span class="lineno"> 901</span> <span class="comment">// we do, however, need to make sure our size calculations don't</span></div> +<div class="line"><a name="l00902"></a><span class="lineno"> 902</span> <span class="comment">// overflow. hence a few helper functions for size calculations that</span></div> +<div class="line"><a name="l00903"></a><span class="lineno"> 903</span> <span class="comment">// multiply integers together, making sure that they're non-negative</span></div> +<div class="line"><a name="l00904"></a><span class="lineno"> 904</span> <span class="comment">// and no overflow occurs.</span></div> +<div class="line"><a name="l00905"></a><span class="lineno"> 905</span> </div> +<div class="line"><a name="l00906"></a><span class="lineno"> 906</span> <span class="comment">// return 1 if the sum is valid, 0 on overflow.</span></div> +<div class="line"><a name="l00907"></a><span class="lineno"> 907</span> <span class="comment">// negative terms are considered invalid.</span></div> +<div class="line"><a name="l00908"></a><span class="lineno"> 908</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__addsizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b)</div> +<div class="line"><a name="l00909"></a><span class="lineno"> 909</span> {</div> +<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>  <span class="keywordflow">if</span> (b < 0)</div> +<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>  <span class="comment">// now 0 <= b <= INT_MAX, hence also</span></div> +<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>  <span class="comment">// 0 <= INT_MAX - b <= INTMAX.</span></div> +<div class="line"><a name="l00914"></a><span class="lineno"> 914</span>  <span class="comment">// And "a + b <= INT_MAX" (which might overflow) is the</span></div> +<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>  <span class="comment">// same as a <= INT_MAX - b (no overflow)</span></div> +<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>  <span class="keywordflow">return</span> a <= INT_MAX - b;</div> +<div class="line"><a name="l00917"></a><span class="lineno"> 917</span> }</div> +<div class="line"><a name="l00918"></a><span class="lineno"> 918</span> </div> +<div class="line"><a name="l00919"></a><span class="lineno"> 919</span> <span class="comment">// returns 1 if the product is valid, 0 on overflow.</span></div> +<div class="line"><a name="l00920"></a><span class="lineno"> 920</span> <span class="comment">// negative factors are considered invalid.</span></div> +<div class="line"><a name="l00921"></a><span class="lineno"> 921</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mul2sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b)</div> +<div class="line"><a name="l00922"></a><span class="lineno"> 922</span> {</div> +<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="keywordflow">if</span> (a < 0 || b < 0)</div> +<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="keywordflow">if</span> (b == 0)</div> +<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  <span class="keywordflow">return</span> 1; <span class="comment">// mul-by-0 is always safe</span></div> +<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="comment">// portable way to check for no overflows in a*b</span></div> +<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  <span class="keywordflow">return</span> a <= INT_MAX / b;</div> +<div class="line"><a name="l00929"></a><span class="lineno"> 929</span> }</div> +<div class="line"><a name="l00930"></a><span class="lineno"> 930</span> </div> +<div class="line"><a name="l00931"></a><span class="lineno"> 931</span> <span class="comment">// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow</span></div> +<div class="line"><a name="l00932"></a><span class="lineno"> 932</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mad2sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> add)</div> +<div class="line"><a name="l00933"></a><span class="lineno"> 933</span> {</div> +<div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  <span class="keywordflow">return</span> stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a * b, add);</div> +<div class="line"><a name="l00935"></a><span class="lineno"> 935</span> }</div> +<div class="line"><a name="l00936"></a><span class="lineno"> 936</span> </div> +<div class="line"><a name="l00937"></a><span class="lineno"> 937</span> <span class="comment">// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow</span></div> +<div class="line"><a name="l00938"></a><span class="lineno"> 938</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mad3sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> add)</div> +<div class="line"><a name="l00939"></a><span class="lineno"> 939</span> {</div> +<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="keywordflow">return</span> stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a * b, c) &&</div> +<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  stbi__addsizes_valid(a * b * c, add);</div> +<div class="line"><a name="l00942"></a><span class="lineno"> 942</span> }</div> +<div class="line"><a name="l00943"></a><span class="lineno"> 943</span> </div> +<div class="line"><a name="l00944"></a><span class="lineno"> 944</span> <span class="comment">// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't</span></div> +<div class="line"><a name="l00945"></a><span class="lineno"> 945</span> <span class="comment">// overflow</span></div> +<div class="line"><a name="l00946"></a><span class="lineno"> 946</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__mad4sizes_valid(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> d, <span class="keywordtype">int</span> add)</div> +<div class="line"><a name="l00947"></a><span class="lineno"> 947</span> {</div> +<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  <span class="keywordflow">return</span> stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a * b, c) &&</div> +<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  stbi__mul2sizes_valid(a * b * c, d) &&</div> +<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  stbi__addsizes_valid(a * b * c * d, add);</div> +<div class="line"><a name="l00951"></a><span class="lineno"> 951</span> }</div> +<div class="line"><a name="l00952"></a><span class="lineno"> 952</span> </div> +<div class="line"><a name="l00953"></a><span class="lineno"> 953</span> <span class="comment">// mallocs with size overflow checking</span></div> +<div class="line"><a name="l00954"></a><span class="lineno"> 954</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc_mad2(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> add)</div> +<div class="line"><a name="l00955"></a><span class="lineno"> 955</span> {</div> +<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <span class="keywordflow">if</span> (!stbi__mad2sizes_valid(a, b, add))</div> +<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  <span class="keywordflow">return</span> stbi__malloc(a * b + add);</div> +<div class="line"><a name="l00959"></a><span class="lineno"> 959</span> }</div> +<div class="line"><a name="l00960"></a><span class="lineno"> 960</span> </div> +<div class="line"><a name="l00961"></a><span class="lineno"> 961</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc_mad3(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> add)</div> +<div class="line"><a name="l00962"></a><span class="lineno"> 962</span> {</div> +<div class="line"><a name="l00963"></a><span class="lineno"> 963</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(a, b, c, add))</div> +<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  <span class="keywordflow">return</span> stbi__malloc(a * b * c + add);</div> +<div class="line"><a name="l00966"></a><span class="lineno"> 966</span> }</div> +<div class="line"><a name="l00967"></a><span class="lineno"> 967</span> </div> +<div class="line"><a name="l00968"></a><span class="lineno"> 968</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__malloc_mad4(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c, <span class="keywordtype">int</span> d, <span class="keywordtype">int</span> add)</div> +<div class="line"><a name="l00969"></a><span class="lineno"> 969</span> {</div> +<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="keywordflow">if</span> (!stbi__mad4sizes_valid(a, b, c, d, add))</div> +<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  <span class="keywordflow">return</span> stbi__malloc(a * b * c * d + add);</div> +<div class="line"><a name="l00973"></a><span class="lineno"> 973</span> }</div> +<div class="line"><a name="l00974"></a><span class="lineno"> 974</span> </div> +<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  <span class="comment">// stbi__err - error</span></div> +<div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  <span class="comment">// stbi__errpf - error returning pointer to float</span></div> +<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  <span class="comment">// stbi__errpuc - error returning pointer to unsigned char</span></div> +<div class="line"><a name="l00978"></a><span class="lineno"> 978</span> </div> +<div class="line"><a name="l00979"></a><span class="lineno"> 979</span> <span class="preprocessor">#ifdef STBI_NO_FAILURE_STRINGS</span></div> +<div class="line"><a name="l00980"></a><span class="lineno"> 980</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__err(x, y) 0</span></div> +<div class="line"><a name="l00981"></a><span class="lineno"> 981</span> <span class="preprocessor"></span><span class="preprocessor">#elif defined(STBI_FAILURE_USERMSG)</span></div> +<div class="line"><a name="l00982"></a><span class="lineno"> 982</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__err(x, y) stbi__err(y)</span></div> +<div class="line"><a name="l00983"></a><span class="lineno"> 983</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div> +<div class="line"><a name="l00984"></a><span class="lineno"> 984</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__err(x, y) stbi__err(x)</span></div> +<div class="line"><a name="l00985"></a><span class="lineno"> 985</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00986"></a><span class="lineno"> 986</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00987"></a><span class="lineno"> 987</span> <span class="preprocessor">#define stbi__errpf(x, y) ((float *)(size_t)(stbi__err(x, y) ? NULL : NULL))</span></div> +<div class="line"><a name="l00988"></a><span class="lineno"> 988</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__errpuc(x, y) \</span></div> +<div class="line"><a name="l00989"></a><span class="lineno"> 989</span> <span class="preprocessor"> ((unsigned char *)(size_t)(stbi__err(x, y) ? NULL : NULL))</span></div> +<div class="line"><a name="l00990"></a><span class="lineno"> 990</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00991"></a><span class="lineno"> 991</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ad3e11bb44412a7ba348acfbad09caacb">stbi_image_free</a>(<span class="keywordtype">void</span> *retval_from_stbi_load)</div> +<div class="line"><a name="l00992"></a><span class="lineno"> 992</span> {</div> +<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  STBI_FREE(retval_from_stbi_load);</div> +<div class="line"><a name="l00994"></a><span class="lineno"> 994</span> }</div> +<div class="line"><a name="l00995"></a><span class="lineno"> 995</span> </div> +<div class="line"><a name="l00996"></a><span class="lineno"> 996</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> +<div class="line"><a name="l00997"></a><span class="lineno"> 997</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__ldr_to_hdr(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp);</div> +<div class="line"><a name="l00998"></a><span class="lineno"> 998</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l00999"></a><span class="lineno"> 999</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__hdr_to_ldr(<span class="keywordtype">float</span> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp);</div> +<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__vertically_flip_on_load = 0;</div> +<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span> </div> +<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab89c177fc52f1bb2dc1c05e48129a0a4">stbi_set_flip_vertically_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_flip)</div> +<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span> {</div> +<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  stbi__vertically_flip_on_load = flag_true_if_should_flip;</div> +<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span> }</div> +<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span> </div> +<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__load_main(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri, <span class="keywordtype">int</span> bpc)</div> +<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span> {</div> +<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  memset(ri, 0,</div> +<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  <span class="keyword">sizeof</span>(*ri)); <span class="comment">// make sure it's initialized if we add new fields</span></div> +<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  ri->bits_per_channel =</div> +<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  8; <span class="comment">// default is 8 so most paths don't have to be changed</span></div> +<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  ri->channel_order = STBI_ORDER_RGB; <span class="comment">// all current input & output are this,</span></div> +<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  <span class="comment">// but this is here so we can add BGR</span></div> +<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="comment">// order</span></div> +<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  ri->num_channels = 0;</div> <div class="line"><a name="l01022"></a><span class="lineno"> 1022</span> </div> -<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  enlarged = (stbi__uint16 *) stbi__malloc(img_len*2);</div> -<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  <span class="keywordflow">if</span> (enlarged == NULL) <span class="keywordflow">return</span> (stbi__uint16 *) stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span> </div> -<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="keywordflow">for</span> (i = 0; i < img_len; ++i)</div> -<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); <span class="comment">// replicate to high and low byte, maps 0->0, 255->0xffff</span></div> -<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span> </div> -<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  STBI_FREE(orig);</div> -<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  <span class="keywordflow">return</span> enlarged;</div> -<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span> }</div> -<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span> </div> -<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__vertical_flip(<span class="keywordtype">void</span> *image, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> bytes_per_pixel)</div> -<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> {</div> -<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  <span class="keywordtype">int</span> row;</div> -<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  <span class="keywordtype">size_t</span> bytes_per_row = (size_t)w * bytes_per_pixel;</div> -<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> temp[2048];</div> -<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *bytes = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)image;</div> -<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span> </div> -<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>  <span class="keywordflow">for</span> (row = 0; row < (h>>1); row++) {</div> -<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *row0 = bytes + row*bytes_per_row;</div> -<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *row1 = bytes + (h - row - 1)*bytes_per_row;</div> -<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  <span class="comment">// swap row0 with row1</span></div> -<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  <span class="keywordtype">size_t</span> bytes_left = bytes_per_row;</div> -<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  <span class="keywordflow">while</span> (bytes_left) {</div> -<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  <span class="keywordtype">size_t</span> bytes_copy = (bytes_left < <span class="keyword">sizeof</span>(temp)) ? bytes_left : <span class="keyword">sizeof</span>(temp);</div> -<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  memcpy(temp, row0, bytes_copy);</div> -<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  memcpy(row0, row1, bytes_copy);</div> -<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  memcpy(row1, temp, bytes_copy);</div> -<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  row0 += bytes_copy;</div> -<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  row1 += bytes_copy;</div> -<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>  bytes_left -= bytes_copy;</div> -<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  }</div> -<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  }</div> -<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span> }</div> -<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span> </div> -<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *stbi__load_and_postprocess_8bit(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span> {</div> -<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  stbi__result_info ri;</div> -<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  <span class="keywordtype">void</span> *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8);</div> -<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span> </div> -<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  <span class="keywordflow">if</span> (result == NULL)</div> -<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span> </div> -<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  <span class="keywordflow">if</span> (ri.bits_per_channel != 8) {</div> -<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  STBI_ASSERT(ri.bits_per_channel == 16);</div> -<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp);</div> -<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  ri.bits_per_channel = 8;</div> -<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  }</div> -<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span> </div> -<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  <span class="comment">// @TODO: move stbi__convert_format to here</span></div> -<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> </div> -<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  <span class="keywordflow">if</span> (stbi__vertically_flip_on_load) {</div> -<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  <span class="keywordtype">int</span> channels = req_comp ? req_comp : *comp;</div> -<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  stbi__vertical_flip(result, *x, *y, channels * <span class="keyword">sizeof</span>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>));</div> -<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  }</div> -<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span> </div> -<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  <span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) result;</div> -<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span> }</div> -<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span> </div> -<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span> <span class="keyword">static</span> stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span> {</div> -<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  stbi__result_info ri;</div> -<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  <span class="keywordtype">void</span> *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16);</div> -<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span> </div> -<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  <span class="keywordflow">if</span> (result == NULL)</div> -<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span> <span class="preprocessor">#ifndef STBI_NO_JPEG</span></div> +<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__jpeg_test(s))</div> +<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  <span class="keywordflow">return</span> stbi__jpeg_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_NO_PNG</span></div> +<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__png_test(s))</div> +<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  <span class="keywordflow">return</span> stbi__png_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_NO_BMP</span></div> +<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__bmp_test(s))</div> +<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  <span class="keywordflow">return</span> stbi__bmp_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_NO_GIF</span></div> +<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__gif_test(s))</div> +<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <span class="keywordflow">return</span> stbi__gif_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_NO_PSD</span></div> +<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__psd_test(s))</div> +<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <span class="keywordflow">return</span> stbi__psd_load(s, x, y, comp, req_comp, ri, bpc);</div> +<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_NO_PIC</span></div> +<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pic_test(s))</div> +<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  <span class="keywordflow">return</span> stbi__pic_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span> <span class="preprocessor"></span><span class="preprocessor">#ifndef STBI_NO_PNM</span></div> +<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pnm_test(s))</div> +<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  <span class="keywordflow">return</span> stbi__pnm_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__hdr_test(s)) {</div> +<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>  <span class="keywordtype">float</span> *hdr = stbi__hdr_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  <span class="keywordflow">return</span> stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp);</div> +<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>  }</div> +<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span> <span class="preprocessor">#ifndef STBI_NO_TGA</span></div> +<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span> <span class="preprocessor"></span> <span class="comment">// test tga last because it's a crappy test!</span></div> +<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  <span class="keywordflow">if</span> (stbi__tga_test(s))</div> +<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  <span class="keywordflow">return</span> stbi__tga_load(s, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unknown image type"</span>,</div> +<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  <span class="stringliteral">"Image not of any known type, or corrupt"</span>);</div> +<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span> }</div> +<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> </div> +<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__convert_16_to_8(stbi__uint16 *orig, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h,</div> +<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  <span class="keywordtype">int</span> channels)</div> +<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span> {</div> +<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  <span class="keywordtype">int</span> img_len = w * h * channels;</div> +<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *reduced;</div> +<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span> </div> +<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  reduced = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc(img_len);</div> +<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  <span class="keywordflow">if</span> (reduced == NULL)</div> +<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span> </div> +<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  <span class="keywordflow">for</span> (i = 0; i < img_len; ++i)</div> +<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  reduced[i] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((orig[i] >> 8) & 0xFF); <span class="comment">// top half of each byte</span></div> +<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  <span class="comment">// is sufficient approx</span></div> +<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  <span class="comment">// of 16->8 bit scaling</span></div> +<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span> </div> +<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  STBI_FREE(orig);</div> +<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  <span class="keywordflow">return</span> reduced;</div> +<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span> }</div> <div class="line"><a name="l01088"></a><span class="lineno"> 1088</span> </div> -<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  <span class="keywordflow">if</span> (ri.bits_per_channel != 16) {</div> -<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  STBI_ASSERT(ri.bits_per_channel == 8);</div> -<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  result = stbi__convert_8_to_16((<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) result, *x, *y, req_comp == 0 ? *comp : req_comp);</div> -<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  ri.bits_per_channel = 16;</div> -<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  }</div> -<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span> </div> -<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  <span class="comment">// @TODO: move stbi__convert_format16 to here</span></div> -<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  <span class="comment">// @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision</span></div> -<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span> </div> -<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  <span class="keywordflow">if</span> (stbi__vertically_flip_on_load) {</div> -<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  <span class="keywordtype">int</span> channels = req_comp ? req_comp : *comp;</div> -<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  stbi__vertical_flip(result, *x, *y, channels * <span class="keyword">sizeof</span>(stbi__uint16));</div> -<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  }</div> -<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span> </div> -<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  <span class="keywordflow">return</span> (stbi__uint16 *) result;</div> -<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span> }</div> -<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span> </div> -<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> stbi__float_postprocess(<span class="keywordtype">float</span> *result, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span> {</div> -<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  <span class="keywordflow">if</span> (stbi__vertically_flip_on_load && result != NULL) {</div> -<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  <span class="keywordtype">int</span> channels = req_comp ? req_comp : *comp;</div> -<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  stbi__vertical_flip(result, *x, *y, channels * <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>));</div> -<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  }</div> -<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span> }</div> -<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span> <span class="keyword">static</span> FILE *stbi__fopen(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">char</span> <span class="keyword">const</span> *mode)</div> -<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span> {</div> -<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  FILE *f;</div> -<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span> <span class="preprocessor">#if defined(_MSC_VER) && _MSC_VER >= 1400</span></div> -<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (0 != fopen_s(&f, filename, mode))</div> -<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  f=0;</div> -<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span> <span class="preprocessor">#else</span></div> -<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span> <span class="preprocessor"></span> f = fopen(filename, mode);</div> -<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> f;</div> -<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span> }</div> -<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span> </div> -<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span> </div> -<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aefdc7387857a14894bbf321e9ea4f048">stbi_load</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span> {</div> -<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> -<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result;</div> -<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  <span class="keywordflow">if</span> (!f) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> -<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  result = <a class="code" href="stb__image_8h.html#aa9994764695597161e8f3776e97caa99">stbi_load_from_file</a>(f,x,y,comp,req_comp);</div> -<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  fclose(f);</div> -<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span> }</div> +<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span> <span class="keyword">static</span> stbi__uint16 *stbi__convert_8_to_16(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *orig, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h,</div> +<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  <span class="keywordtype">int</span> channels)</div> +<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span> {</div> +<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  <span class="keywordtype">int</span> img_len = w * h * channels;</div> +<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  stbi__uint16 *enlarged;</div> +<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span> </div> +<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  enlarged = (stbi__uint16 *)stbi__malloc(img_len * 2);</div> +<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  <span class="keywordflow">if</span> (enlarged == NULL)</div> +<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  <span class="keywordflow">return</span> (stbi__uint16 *)stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span> </div> +<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  <span class="keywordflow">for</span> (i = 0; i < img_len; ++i)</div> +<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  enlarged[i] = (stbi__uint16)(</div> +<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  (orig[i] << 8) +</div> +<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  orig[i]); <span class="comment">// replicate to high and low byte, maps 0->0, 255->0xffff</span></div> +<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span> </div> +<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  STBI_FREE(orig);</div> +<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>  <span class="keywordflow">return</span> enlarged;</div> +<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span> }</div> +<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span> </div> +<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__vertical_flip(<span class="keywordtype">void</span> *image, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">int</span> bytes_per_pixel)</div> +<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span> {</div> +<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  <span class="keywordtype">int</span> row;</div> +<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  <span class="keywordtype">size_t</span> bytes_per_row = (size_t)w * bytes_per_pixel;</div> +<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> temp[2048];</div> +<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *bytes = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)image;</div> +<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span> </div> +<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>  <span class="keywordflow">for</span> (row = 0; row < (h >> 1); row++) {</div> +<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *row0 = bytes + row * bytes_per_row;</div> +<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *row1 = bytes + (h - row - 1) * bytes_per_row;</div> +<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>  <span class="comment">// swap row0 with row1</span></div> +<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>  <span class="keywordtype">size_t</span> bytes_left = bytes_per_row;</div> +<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>  <span class="keywordflow">while</span> (bytes_left) {</div> +<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>  <span class="keywordtype">size_t</span> bytes_copy =</div> +<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>  (bytes_left < <span class="keyword">sizeof</span>(temp)) ? bytes_left : <span class="keyword">sizeof</span>(temp);</div> +<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>  memcpy(temp, row0, bytes_copy);</div> +<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>  memcpy(row0, row1, bytes_copy);</div> +<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>  memcpy(row1, temp, bytes_copy);</div> +<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>  row0 += bytes_copy;</div> +<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>  row1 += bytes_copy;</div> +<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  bytes_left -= bytes_copy;</div> +<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  }</div> +<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>  }</div> +<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span> }</div> +<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span> </div> +<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *stbi__load_and_postprocess_8bit(stbi__context *s, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span> {</div> +<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>  stbi__result_info ri;</div> +<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>  <span class="keywordtype">void</span> *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8);</div> <div class="line"><a name="l01140"></a><span class="lineno"> 1140</span> </div> -<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aa9994764695597161e8f3776e97caa99">stbi_load_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span> {</div> -<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result;</div> -<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>  stbi__context s;</div> -<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  stbi__start_file(&s,f);</div> -<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp);</div> -<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  <span class="keywordflow">if</span> (result) {</div> -<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  <span class="comment">// need to 'unget' all the characters in the IO buffer</span></div> -<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  fseek(f, - (<span class="keywordtype">int</span>) (s.img_buffer_end - s.img_buffer), SEEK_CUR);</div> -<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>  }</div> -<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span> }</div> -<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span> </div> -<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> stbi__uint16 *<a class="code" href="stb__image_8h.html#a9ca2591f0987284129e82bf9dbcf7c6c">stbi_load_from_file_16</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span> {</div> -<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  stbi__uint16 *result;</div> -<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  stbi__context s;</div> -<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  stbi__start_file(&s,f);</div> -<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp);</div> -<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  <span class="keywordflow">if</span> (result) {</div> -<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  <span class="comment">// need to 'unget' all the characters in the IO buffer</span></div> -<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  fseek(f, - (<span class="keywordtype">int</span>) (s.img_buffer_end - s.img_buffer), SEEK_CUR);</div> -<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  }</div> -<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span> }</div> -<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span> </div> -<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a8a58b6bcd805afa1bdb14f988dd37fee">stbi_load_16</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span> {</div> -<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> -<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>  stbi__uint16 *result;</div> -<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  <span class="keywordflow">if</span> (!f) <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *) stbi__errpuc(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> -<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  result = <a class="code" href="stb__image_8h.html#a9ca2591f0987284129e82bf9dbcf7c6c">stbi_load_from_file_16</a>(f,x,y,comp,req_comp);</div> -<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  fclose(f);</div> -<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span> }</div> -<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span> </div> +<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>  <span class="keywordflow">if</span> (result == NULL)</div> +<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span> </div> +<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>  <span class="keywordflow">if</span> (ri.bits_per_channel != 8) {</div> +<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>  STBI_ASSERT(ri.bits_per_channel == 16);</div> +<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>  result = stbi__convert_16_to_8((stbi__uint16 *)result, *x, *y,</div> +<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>  req_comp == 0 ? *comp : req_comp);</div> +<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>  ri.bits_per_channel = 8;</div> +<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>  }</div> +<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span> </div> +<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  <span class="comment">// @TODO: move stbi__convert_format to here</span></div> +<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span> </div> +<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  <span class="keywordflow">if</span> (stbi__vertically_flip_on_load) {</div> +<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  <span class="keywordtype">int</span> channels = req_comp ? req_comp : *comp;</div> +<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  stbi__vertical_flip(result, *x, *y, channels * <span class="keyword">sizeof</span>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>));</div> +<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  }</div> +<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span> </div> +<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  <span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)result;</div> +<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span> }</div> +<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span> </div> +<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span> <span class="keyword">static</span> stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span> {</div> +<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>  stbi__result_info ri;</div> +<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  <span class="keywordtype">void</span> *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16);</div> +<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span> </div> +<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  <span class="keywordflow">if</span> (result == NULL)</div> +<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span> </div> +<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  <span class="keywordflow">if</span> (ri.bits_per_channel != 16) {</div> +<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  STBI_ASSERT(ri.bits_per_channel == 8);</div> +<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  result = stbi__convert_8_to_16((<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)result, *x, *y,</div> +<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>  req_comp == 0 ? *comp : req_comp);</div> +<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  ri.bits_per_channel = 16;</div> +<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  }</div> <div class="line"><a name="l01177"></a><span class="lineno"> 1177</span> </div> -<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span> <span class="preprocessor">#endif </span></div> -<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#ad30fd870ed2138ce8f38c9dd29b2f76a">stbi_load_16_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels)</div> -<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span> {</div> -<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  stbi__context s;</div> -<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  stbi__start_mem(&s,buffer,len);</div> -<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels);</div> -<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span> }</div> +<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  <span class="comment">// @TODO: move stbi__convert_format16 to here</span></div> +<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>  <span class="comment">// @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to</span></div> +<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  <span class="comment">// keep more precision</span></div> +<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span> </div> +<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  <span class="keywordflow">if</span> (stbi__vertically_flip_on_load) {</div> +<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  <span class="keywordtype">int</span> channels = req_comp ? req_comp : *comp;</div> +<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  stbi__vertical_flip(result, *x, *y, channels * <span class="keyword">sizeof</span>(stbi__uint16));</div> +<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  }</div> <div class="line"><a name="l01186"></a><span class="lineno"> 1186</span> </div> -<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a82bcc0957b6a4ebfdfa3d7f04fbaed18">stbi_load_16_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file, <span class="keywordtype">int</span> desired_channels)</div> -<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span> {</div> -<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>  stbi__context s;</div> -<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *)clbk, user);</div> -<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels);</div> -<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span> }</div> -<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span> </div> -<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#acae25d31bfae29d75482f07fecf2935f">stbi_load_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span> {</div> -<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  stbi__context s;</div> -<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  stbi__start_mem(&s,buffer,len);</div> -<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp);</div> -<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span> }</div> -<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span> </div> -<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#a95ebc5c42c1a753200be8d465e933af7">stbi_load_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span> {</div> -<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>  stbi__context s;</div> -<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *) clbk, user);</div> -<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp);</div> -<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span> }</div> -<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span> </div> -<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> -<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__loadf_main(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span> {</div> -<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data;</div> -<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span> <span class="preprocessor"> #ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__hdr_test(s)) {</div> -<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  stbi__result_info ri;</div> -<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  <span class="keywordtype">float</span> *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri);</div> -<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  <span class="keywordflow">if</span> (hdr_data)</div> -<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>  stbi__float_postprocess(hdr_data,x,y,comp,req_comp);</div> -<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  <span class="keywordflow">return</span> hdr_data;</div> -<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>  }</div> -<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span> <span class="preprocessor"></span> data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp);</div> -<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>  <span class="keywordflow">if</span> (data)</div> -<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  <span class="keywordflow">return</span> stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp);</div> -<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unknown image type"</span>, <span class="stringliteral">"Image not of any known type, or corrupt"</span>);</div> +<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  <span class="keywordflow">return</span> (stbi__uint16 *)result;</div> +<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span> }</div> +<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span> </div> +<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> stbi__float_postprocess(<span class="keywordtype">float</span> *result, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span> {</div> +<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  <span class="keywordflow">if</span> (stbi__vertically_flip_on_load && result != NULL) {</div> +<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>  <span class="keywordtype">int</span> channels = req_comp ? req_comp : *comp;</div> +<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  stbi__vertical_flip(result, *x, *y, channels * <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>));</div> +<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  }</div> +<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span> }</div> +<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span> <span class="keyword">static</span> FILE *stbi__fopen(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">char</span> <span class="keyword">const</span> *mode)</div> +<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span> {</div> +<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  FILE *f;</div> +<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span> <span class="preprocessor">#if defined(_MSC_VER) && _MSC_VER >= 1400</span></div> +<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (0 != fopen_s(&f, filename, mode))</div> +<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  f = 0;</div> +<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span> <span class="preprocessor"></span> f = fopen(filename, mode);</div> +<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> f;</div> +<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span> }</div> +<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span> </div> +<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aefdc7387857a14894bbf321e9ea4f048">stbi_load</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span> {</div> +<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> +<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result;</div> +<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>  <span class="keywordflow">if</span> (!f)</div> +<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> +<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>  result = <a class="code" href="stb__image_8h.html#aa9994764695597161e8f3776e97caa99">stbi_load_from_file</a>(f, x, y, comp, req_comp);</div> +<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  fclose(f);</div> +<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <span class="keywordflow">return</span> result;</div> <div class="line"><a name="l01225"></a><span class="lineno"> 1225</span> }</div> <div class="line"><a name="l01226"></a><span class="lineno"> 1226</span> </div> -<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a5d47fb76ce1e34eb0729ad932c9c48e2">stbi_loadf_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span> {</div> -<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>  stbi__context s;</div> -<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  stbi__start_mem(&s,buffer,len);</div> -<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  <span class="keywordflow">return</span> stbi__loadf_main(&s,x,y,comp,req_comp);</div> -<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span> }</div> -<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span> </div> -<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a6e7fd261af79ecef2208df3a6cc806bb">stbi_loadf_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span> {</div> -<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>  stbi__context s;</div> -<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *) clbk, user);</div> -<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>  <span class="keywordflow">return</span> stbi__loadf_main(&s,x,y,comp,req_comp);</div> +<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#aa9994764695597161e8f3776e97caa99">stbi_load_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span> {</div> +<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result;</div> +<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  stbi__context s;</div> +<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>  stbi__start_file(&s, f);</div> +<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>  result = stbi__load_and_postprocess_8bit(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>  <span class="keywordflow">if</span> (result) {</div> +<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>  <span class="comment">// need to 'unget' all the characters in the IO buffer</span></div> +<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>  fseek(f, -(<span class="keywordtype">int</span>)(s.img_buffer_end - s.img_buffer), SEEK_CUR);</div> +<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>  }</div> +<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>  <span class="keywordflow">return</span> result;</div> <div class="line"><a name="l01239"></a><span class="lineno"> 1239</span> }</div> <div class="line"><a name="l01240"></a><span class="lineno"> 1240</span> </div> -<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#af4f17acd30945a75901fdc022f90575f">stbi_loadf</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> stbi__uint16 *<a class="code" href="stb__image_8h.html#a9ca2591f0987284129e82bf9dbcf7c6c">stbi_load_from_file_16</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  <span class="keywordtype">int</span> req_comp)</div> <div class="line"><a name="l01243"></a><span class="lineno"> 1243</span> {</div> -<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  <span class="keywordtype">float</span> *result;</div> -<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> -<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  <span class="keywordflow">if</span> (!f) <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> -<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  result = <a class="code" href="stb__image_8h.html#ace82446ecd7b5c760cde062179660f46">stbi_loadf_from_file</a>(f,x,y,comp,req_comp);</div> -<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  fclose(f);</div> -<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span> }</div> -<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span> </div> -<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#ace82446ecd7b5c760cde062179660f46">stbi_loadf_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span> {</div> -<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>  stbi__context s;</div> -<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>  stbi__start_file(&s,f);</div> -<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>  <span class="keywordflow">return</span> stbi__loadf_main(&s,x,y,comp,req_comp);</div> -<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span> }</div> -<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> -<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span> <span class="preprocessor">#endif // !STBI_NO_LINEAR</span></div> -<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span> <span class="comment">// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is</span></div> -<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span> <span class="comment">// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always</span></div> -<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span> <span class="comment">// reports false!</span></div> -<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span> </div> -<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a5cbc6f5cbb3b2d0d87ee959fcee9d23e">stbi_is_hdr_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len)</div> -<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span> {</div> -<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span> <span class="preprocessor"> #ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span> <span class="preprocessor"></span> stbi__context s;</div> -<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  stbi__start_mem(&s,buffer,len);</div> -<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>  <span class="keywordflow">return</span> stbi__hdr_test(&s);</div> -<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span> <span class="preprocessor"> #else</span></div> -<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span> <span class="preprocessor"></span> STBI_NOTUSED(buffer);</div> -<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>  STBI_NOTUSED(len);</div> -<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  stbi__uint16 *result;</div> +<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  stbi__context s;</div> +<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>  stbi__start_file(&s, f);</div> +<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  result = stbi__load_and_postprocess_16bit(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>  <span class="keywordflow">if</span> (result) {</div> +<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>  <span class="comment">// need to 'unget' all the characters in the IO buffer</span></div> +<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>  fseek(f, -(<span class="keywordtype">int</span>)(s.img_buffer_end - s.img_buffer), SEEK_CUR);</div> +<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>  }</div> +<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span> }</div> +<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span> </div> +<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a8a58b6bcd805afa1bdb14f988dd37fee">stbi_load_16</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span> {</div> +<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> +<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>  stbi__uint16 *result;</div> +<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>  <span class="keywordflow">if</span> (!f)</div> +<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *)stbi__errpuc(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> +<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>  result = <a class="code" href="stb__image_8h.html#a9ca2591f0987284129e82bf9dbcf7c6c">stbi_load_from_file_16</a>(f, x, y, comp, req_comp);</div> +<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>  fclose(f);</div> +<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span> }</div> +<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span> </div> +<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span> <span class="preprocessor">#endif </span></div> +<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#ad30fd870ed2138ce8f38c9dd29b2f76a">stbi_load_16_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>  <span class="keywordtype">int</span> desired_channels)</div> +<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span> {</div> +<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>  stbi__context s;</div> +<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>  stbi__start_mem(&s, buffer, len);</div> +<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_16bit(&s, x, y, channels_in_file,</div> +<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>  desired_channels);</div> +<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span> }</div> <div class="line"><a name="l01278"></a><span class="lineno"> 1278</span> </div> -<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae70f9a302f7e87fd971075e7f758d55c">stbi_is_hdr</a> (<span class="keywordtype">char</span> <span class="keyword">const</span> *filename)</div> -<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span> {</div> -<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> -<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>  <span class="keywordtype">int</span> result=0;</div> -<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>  <span class="keywordflow">if</span> (f) {</div> -<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>  result = <a class="code" href="stb__image_8h.html#aaf10d41631e1e9214fde1688bdbd8524">stbi_is_hdr_from_file</a>(f);</div> -<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>  fclose(f);</div> -<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>  }</div> -<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span> }</div> -<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span> </div> -<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aaf10d41631e1e9214fde1688bdbd8524">stbi_is_hdr_from_file</a>(FILE *f)</div> +<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a648037d4c55689328ba08c8f5d293df2">stbi_us</a> *<a class="code" href="stb__image_8h.html#a82bcc0957b6a4ebfdfa3d7f04fbaed18">stbi_load_16_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>  <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y,</div> +<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>  <span class="keywordtype">int</span> *channels_in_file,</div> +<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>  <span class="keywordtype">int</span> desired_channels)</div> +<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span> {</div> +<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>  stbi__context s;</div> +<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *)clbk, user);</div> +<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_16bit(&s, x, y, channels_in_file,</div> +<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>  desired_channels);</div> +<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span> }</div> +<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span> </div> +<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#acae25d31bfae29d75482f07fecf2935f">stbi_load_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> <div class="line"><a name="l01292"></a><span class="lineno"> 1292</span> {</div> -<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span> <span class="preprocessor"> #ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span> <span class="preprocessor"></span> stbi__context s;</div> -<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>  stbi__start_file(&s,f);</div> -<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  <span class="keywordflow">return</span> stbi__hdr_test(&s);</div> -<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span> <span class="preprocessor"> #else</span></div> -<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span> <span class="preprocessor"></span> STBI_NOTUSED(f);</div> -<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span> <span class="preprocessor"></span>}</div> -<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> -<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#af0e94f316fe1848f632517ca3c11d077">stbi_is_hdr_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk, <span class="keywordtype">void</span> *user)</div> -<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span> {</div> -<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span> <span class="preprocessor"> #ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span> <span class="preprocessor"></span> stbi__context s;</div> -<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *) clbk, user);</div> -<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>  <span class="keywordflow">return</span> stbi__hdr_test(&s);</div> -<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span> <span class="preprocessor"> #else</span></div> -<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span> <span class="preprocessor"></span> STBI_NOTUSED(clbk);</div> -<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  STBI_NOTUSED(user);</div> -<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span> <span class="preprocessor"></span>}</div> -<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span> </div> -<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> -<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f;</div> -<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span> </div> -<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a1feccdcf726dcc6b5502e3efa85b7dbb">stbi_ldr_to_hdr_gamma</a>(<span class="keywordtype">float</span> gamma) { stbi__l2h_gamma = gamma; }</div> -<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#af946583656a362a316b40c0421c20561">stbi_ldr_to_hdr_scale</a>(<span class="keywordtype">float</span> scale) { stbi__l2h_scale = scale; }</div> -<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01323"></a><span class="lineno"> 1323</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span> <span class="keyword">static</span> <span class="keywordtype">float</span> stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f;</div> -<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span> </div> -<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab18889e43518d6b4421b705782bb1b5e">stbi_hdr_to_ldr_gamma</a>(<span class="keywordtype">float</span> gamma) { stbi__h2l_gamma_i = 1/gamma; }</div> -<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ae21cc1184eeb5cc814699f1ed62c5258">stbi_hdr_to_ldr_scale</a>(<span class="keywordtype">float</span> scale) { stbi__h2l_scale_i = 1/scale; }</div> -<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span> </div> -<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span> </div> -<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span> <span class="comment">//</span></div> -<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span> <span class="comment">// Common code used by all image loaders</span></div> -<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span> <span class="comment">//</span></div> -<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span> </div> -<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span> <span class="keyword">enum</span></div> -<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span> {</div> -<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>  STBI__SCAN_load=0,</div> -<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  STBI__SCAN_type,</div> -<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>  STBI__SCAN_header</div> -<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span> };</div> -<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span> </div> -<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__refill_buffer(stbi__context *s)</div> -<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span> {</div> -<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>  <span class="keywordtype">int</span> n = (s->io.read)(s->io_user_data,(<span class="keywordtype">char</span>*)s->buffer_start,s->buflen);</div> -<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>  <span class="keywordflow">if</span> (n == 0) {</div> -<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>  <span class="comment">// at end of file, treat same as if from memory, but need to handle case</span></div> -<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>  <span class="comment">// where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file</span></div> -<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>  s->read_from_callbacks = 0;</div> -<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>  s->img_buffer = s->buffer_start;</div> -<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>  s->img_buffer_end = s->buffer_start+1;</div> -<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>  *s->img_buffer = 0;</div> -<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>  s->img_buffer = s->buffer_start;</div> -<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  s->img_buffer_end = s->buffer_start + n;</div> -<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>  }</div> +<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>  stbi__context s;</div> +<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>  stbi__start_mem(&s, buffer, len);</div> +<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_8bit(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span> }</div> +<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span> </div> +<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<a class="code" href="stb__image_8h.html#a95ebc5c42c1a753200be8d465e933af7">stbi_load_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>  <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span> {</div> +<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>  stbi__context s;</div> +<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *)clbk, user);</div> +<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>  <span class="keywordflow">return</span> stbi__load_and_postprocess_8bit(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span> }</div> +<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span> </div> +<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> +<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__loadf_main(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span> {</div> +<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data;</div> +<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__hdr_test(s)) {</div> +<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>  stbi__result_info ri;</div> +<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>  <span class="keywordtype">float</span> *hdr_data = stbi__hdr_load(s, x, y, comp, req_comp, &ri);</div> +<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>  <span class="keywordflow">if</span> (hdr_data)</div> +<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  stbi__float_postprocess(hdr_data, x, y, comp, req_comp);</div> +<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>  <span class="keywordflow">return</span> hdr_data;</div> +<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  }</div> +<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span> <span class="preprocessor"></span> data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  <span class="keywordflow">if</span> (data)</div> +<div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>  <span class="keywordflow">return</span> stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp);</div> +<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unknown image type"</span>,</div> +<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>  <span class="stringliteral">"Image not of any known type, or corrupt"</span>);</div> +<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span> }</div> +<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span> </div> +<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a5d47fb76ce1e34eb0729ad932c9c48e2">stbi_loadf_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01330"></a><span class="lineno"> 1330</span> {</div> +<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span>  stbi__context s;</div> +<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>  stbi__start_mem(&s, buffer, len);</div> +<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>  <span class="keywordflow">return</span> stbi__loadf_main(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span> }</div> +<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span> </div> +<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#a6e7fd261af79ecef2208df3a6cc806bb">stbi_loadf_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>  <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span> {</div> +<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>  stbi__context s;</div> +<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *)clbk, user);</div> +<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>  <span class="keywordflow">return</span> stbi__loadf_main(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span> }</div> +<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span> </div> +<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#af4f17acd30945a75901fdc022f90575f">stbi_loadf</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span> {</div> +<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>  <span class="keywordtype">float</span> *result;</div> +<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> +<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>  <span class="keywordflow">if</span> (!f)</div> +<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> +<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>  result = <a class="code" href="stb__image_8h.html#ace82446ecd7b5c760cde062179660f46">stbi_loadf_from_file</a>(f, x, y, comp, req_comp);</div> +<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  fclose(f);</div> +<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>  <span class="keywordflow">return</span> result;</div> <div class="line"><a name="l01356"></a><span class="lineno"> 1356</span> }</div> <div class="line"><a name="l01357"></a><span class="lineno"> 1357</span> </div> -<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span> stbi_inline <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__get8(stbi__context *s)</div> -<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span> {</div> -<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>  <span class="keywordflow">if</span> (s->img_buffer < s->img_buffer_end)</div> -<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  <span class="keywordflow">return</span> *s->img_buffer++;</div> -<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  <span class="keywordflow">if</span> (s->read_from_callbacks) {</div> -<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>  stbi__refill_buffer(s);</div> -<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>  <span class="keywordflow">return</span> *s->img_buffer++;</div> -<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>  }</div> -<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span> }</div> -<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span> </div> -<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__at_eof(stbi__context *s)</div> -<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span> {</div> -<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>  <span class="keywordflow">if</span> (s->io.read) {</div> -<div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>  <span class="keywordflow">if</span> (!(s->io.eof)(s->io_user_data)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l01373"></a><span class="lineno"> 1373</span>  <span class="comment">// if feof() is true, check if buffer = end</span></div> -<div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>  <span class="comment">// special case: we've only got the special 0 character at the end</span></div> -<div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>  <span class="keywordflow">if</span> (s->read_from_callbacks == 0) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>  }</div> -<div class="line"><a name="l01377"></a><span class="lineno"> 1377</span> </div> -<div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>  <span class="keywordflow">return</span> s->img_buffer >= s->img_buffer_end;</div> -<div class="line"><a name="l01379"></a><span class="lineno"> 1379</span> }</div> -<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span> </div> -<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__skip(stbi__context *s, <span class="keywordtype">int</span> n)</div> -<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span> {</div> -<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span>  <span class="keywordflow">if</span> (n < 0) {</div> -<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>  s->img_buffer = s->img_buffer_end;</div> -<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>  <span class="keywordflow">return</span>;</div> -<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>  }</div> -<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>  <span class="keywordflow">if</span> (s->io.read) {</div> -<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  <span class="keywordtype">int</span> blen = (int) (s->img_buffer_end - s->img_buffer);</div> -<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  <span class="keywordflow">if</span> (blen < n) {</div> -<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>  s->img_buffer = s->img_buffer_end;</div> -<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  (s->io.skip)(s->io_user_data, n - blen);</div> -<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  <span class="keywordflow">return</span>;</div> -<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  }</div> -<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>  }</div> -<div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>  s->img_buffer += n;</div> +<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">float</span> *<a class="code" href="stb__image_8h.html#ace82446ecd7b5c760cde062179660f46">stbi_loadf_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span> {</div> +<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  stbi__context s;</div> +<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  stbi__start_file(&s, f);</div> +<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>  <span class="keywordflow">return</span> stbi__loadf_main(&s, x, y, comp, req_comp);</div> +<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span> }</div> +<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> +<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span> <span class="preprocessor">#endif // !STBI_NO_LINEAR</span></div> +<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span> <span class="comment">// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is</span></div> +<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span> <span class="comment">// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always</span></div> +<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span> <span class="comment">// reports false!</span></div> +<div class="line"><a name="l01372"></a><span class="lineno"> 1372</span> </div> +<div class="line"><a name="l01373"></a><span class="lineno"> 1373</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a5cbc6f5cbb3b2d0d87ee959fcee9d23e">stbi_is_hdr_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len)</div> +<div class="line"><a name="l01374"></a><span class="lineno"> 1374</span> {</div> +<div class="line"><a name="l01375"></a><span class="lineno"> 1375</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01376"></a><span class="lineno"> 1376</span> <span class="preprocessor"></span> stbi__context s;</div> +<div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>  stbi__start_mem(&s, buffer, len);</div> +<div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>  <span class="keywordflow">return</span> stbi__hdr_test(&s);</div> +<div class="line"><a name="l01379"></a><span class="lineno"> 1379</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span> <span class="preprocessor"></span> STBI_NOTUSED(buffer);</div> +<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span>  STBI_NOTUSED(len);</div> +<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span> </div> +<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae70f9a302f7e87fd971075e7f758d55c">stbi_is_hdr</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename)</div> +<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span> {</div> +<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> +<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>  <span class="keywordtype">int</span> result = 0;</div> +<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  <span class="keywordflow">if</span> (f) {</div> +<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  result = <a class="code" href="stb__image_8h.html#aaf10d41631e1e9214fde1688bdbd8524">stbi_is_hdr_from_file</a>(f);</div> +<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  fclose(f);</div> +<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>  }</div> +<div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>  <span class="keywordflow">return</span> result;</div> <div class="line"><a name="l01396"></a><span class="lineno"> 1396</span> }</div> <div class="line"><a name="l01397"></a><span class="lineno"> 1397</span> </div> -<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__getn(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *buffer, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aaf10d41631e1e9214fde1688bdbd8524">stbi_is_hdr_from_file</a>(FILE *f)</div> <div class="line"><a name="l01399"></a><span class="lineno"> 1399</span> {</div> -<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>  <span class="keywordflow">if</span> (s->io.read) {</div> -<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>  <span class="keywordtype">int</span> blen = (int) (s->img_buffer_end - s->img_buffer);</div> -<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  <span class="keywordflow">if</span> (blen < n) {</div> -<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  <span class="keywordtype">int</span> res, count;</div> -<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span> </div> -<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>  memcpy(buffer, s->img_buffer, blen);</div> -<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span> </div> -<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  count = (s->io.read)(s->io_user_data, (<span class="keywordtype">char</span>*) buffer + blen, n - blen);</div> -<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>  res = (count == (n-blen));</div> -<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>  s->img_buffer = s->img_buffer_end;</div> -<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>  <span class="keywordflow">return</span> res;</div> -<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>  }</div> -<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>  }</div> -<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span> </div> -<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>  <span class="keywordflow">if</span> (s->img_buffer+n <= s->img_buffer_end) {</div> -<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>  memcpy(buffer, s->img_buffer, n);</div> -<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  s->img_buffer += n;</div> -<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>  } <span class="keywordflow">else</span></div> -<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span> }</div> -<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span> </div> -<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__get16be(stbi__context *s)</div> -<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span> {</div> -<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>  <span class="keywordtype">int</span> z = stbi__get8(s);</div> -<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>  <span class="keywordflow">return</span> (z << 8) + stbi__get8(s);</div> -<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span> }</div> +<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span> <span class="preprocessor"></span> stbi__context s;</div> +<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  stbi__start_file(&s, f);</div> +<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  <span class="keywordflow">return</span> stbi__hdr_test(&s);</div> +<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span> <span class="preprocessor"></span> STBI_NOTUSED(f);</div> +<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> +<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#af0e94f316fe1848f632517ca3c11d077">stbi_is_hdr_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *clbk,</div> +<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>  <span class="keywordtype">void</span> *user)</div> +<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span> {</div> +<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span> <span class="preprocessor"></span> stbi__context s;</div> +<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *)clbk, user);</div> +<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  <span class="keywordflow">return</span> stbi__hdr_test(&s);</div> +<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span> <span class="preprocessor"></span> STBI_NOTUSED(clbk);</div> +<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>  STBI_NOTUSED(user);</div> +<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span> </div> +<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> +<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> stbi__l2h_gamma = 2.2f, stbi__l2h_scale = 1.0f;</div> <div class="line"><a name="l01427"></a><span class="lineno"> 1427</span> </div> -<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span> <span class="keyword">static</span> stbi__uint32 stbi__get32be(stbi__context *s)</div> +<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a1feccdcf726dcc6b5502e3efa85b7dbb">stbi_ldr_to_hdr_gamma</a>(<span class="keywordtype">float</span> gamma)</div> <div class="line"><a name="l01429"></a><span class="lineno"> 1429</span> {</div> -<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>  stbi__uint32 z = stbi__get16be(s);</div> -<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>  <span class="keywordflow">return</span> (z << 16) + stbi__get16be(s);</div> -<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span> }</div> -<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span> </div> -<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span> <span class="preprocessor">#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF)</span></div> -<div class="line"><a name="l01435"></a><span class="lineno"> 1435</span> <span class="preprocessor"></span><span class="comment">// nothing</span></div> -<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span> <span class="preprocessor">#else</span></div> -<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__get16le(stbi__context *s)</div> -<div class="line"><a name="l01438"></a><span class="lineno"> 1438</span> {</div> -<div class="line"><a name="l01439"></a><span class="lineno"> 1439</span>  <span class="keywordtype">int</span> z = stbi__get8(s);</div> -<div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>  <span class="keywordflow">return</span> z + (stbi__get8(s) << 8);</div> -<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span> }</div> -<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> -<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span> <span class="preprocessor"></span><span class="keyword">static</span> stbi__uint32 stbi__get32le(stbi__context *s)</div> -<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span> {</div> -<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>  stbi__uint32 z = stbi__get16le(s);</div> -<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>  <span class="keywordflow">return</span> z + (stbi__get16le(s) << 16);</div> -<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span> }</div> -<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span> <span class="preprocessor">#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings</span></div> -<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span> </div> -<div class="line"><a name="l01456"></a><span class="lineno"> 1456</span> <span class="comment">//</span></div> -<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span> <span class="comment">// generic converter from built-in img_n to req_comp</span></div> -<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span> <span class="comment">// individual types do this automatically as much as possible (e.g. jpeg</span></div> -<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span> <span class="comment">// does all cases internally since it needs to colorspace convert anyway,</span></div> -<div class="line"><a name="l01460"></a><span class="lineno"> 1460</span> <span class="comment">// and it never has alpha, so very few cases ). png can automatically</span></div> -<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span> <span class="comment">// interleave an alpha=255 channel, but falls back to this for other cases</span></div> -<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span> <span class="comment">//</span></div> -<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span> <span class="comment">// assume data buffer is malloced, so malloc a new one and free that one</span></div> -<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span> <span class="comment">// only failure mode is malloc failing</span></div> -<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span> </div> -<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__compute_y(<span class="keywordtype">int</span> r, <span class="keywordtype">int</span> g, <span class="keywordtype">int</span> b)</div> -<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span> {</div> -<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) (((r*77) + (g*150) + (29*b)) >> 8);</div> -<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span> }</div> -<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span> </div> -<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *stbi__convert_format(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data, <span class="keywordtype">int</span> img_n, <span class="keywordtype">int</span> req_comp, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> y)</div> -<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span> {</div> -<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>  <span class="keywordtype">int</span> i,j;</div> -<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *good;</div> -<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span> </div> -<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  <span class="keywordflow">if</span> (req_comp == img_n) <span class="keywordflow">return</span> data;</div> -<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  STBI_ASSERT(req_comp >= 1 && req_comp <= 4);</div> -<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span> </div> -<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>  good = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) stbi__malloc_mad3(req_comp, x, y, 0);</div> -<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  <span class="keywordflow">if</span> (good == NULL) {</div> -<div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>  STBI_FREE(data);</div> -<div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>  }</div> -<div class="line"><a name="l01484"></a><span class="lineno"> 1484</span> </div> -<div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>  <span class="keywordflow">for</span> (j=0; j < (int) y; ++j) {</div> -<div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *src = data + j * x * img_n ;</div> -<div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *dest = good + j * x * req_comp;</div> -<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span> </div> -<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span> <span class="preprocessor"> #define STBI__COMBO(a,b) ((a)*8+(b))</span></div> -<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b)</span></div> -<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span> <span class="preprocessor"></span> <span class="comment">// convert source image with img_n components to one with req_comp components;</span></div> -<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>  <span class="comment">// avoid switch per pixel, so use switch per scanline and massive macros</span></div> -<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>  <span class="keywordflow">switch</span> (STBI__COMBO(img_n, req_comp)) {</div> -<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  STBI__CASE(1,2) { dest[0]=src[0], dest[1]=255; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>  STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>  STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=255; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>  STBI__CASE(2,1) { dest[0]=src[0]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>  STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=src[1]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  STBI__CASE(3,4) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2],dest[3]=255; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = 255; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = src[3]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  STBI__CASE(4,3) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  <span class="keywordflow">default</span>: STBI_ASSERT(0);</div> -<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  }</div> -<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span> <span class="preprocessor"> #undef STBI__CASE</span></div> -<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span> <span class="preprocessor"></span> }</div> -<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span> </div> -<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  STBI_FREE(data);</div> -<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>  <span class="keywordflow">return</span> good;</div> -<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span> }</div> -<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span> </div> -<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span> <span class="keyword">static</span> stbi__uint16 stbi__compute_y_16(<span class="keywordtype">int</span> r, <span class="keywordtype">int</span> g, <span class="keywordtype">int</span> b)</div> -<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span> {</div> -<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  <span class="keywordflow">return</span> (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8);</div> -<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span> }</div> -<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span> </div> -<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span> <span class="keyword">static</span> stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, <span class="keywordtype">int</span> img_n, <span class="keywordtype">int</span> req_comp, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> y)</div> -<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span> {</div> -<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>  <span class="keywordtype">int</span> i,j;</div> -<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  stbi__uint16 *good;</div> -<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span> </div> -<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  <span class="keywordflow">if</span> (req_comp == img_n) <span class="keywordflow">return</span> data;</div> -<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>  STBI_ASSERT(req_comp >= 1 && req_comp <= 4);</div> -<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span> </div> -<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2);</div> -<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  <span class="keywordflow">if</span> (good == NULL) {</div> -<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>  STBI_FREE(data);</div> -<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span>  <span class="keywordflow">return</span> (stbi__uint16 *) stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>  }</div> -<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span> </div> -<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  <span class="keywordflow">for</span> (j=0; j < (int) y; ++j) {</div> -<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>  stbi__uint16 *src = data + j * x * img_n ;</div> -<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>  stbi__uint16 *dest = good + j * x * req_comp;</div> -<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span> </div> -<div class="line"><a name="l01538"></a><span class="lineno"> 1538</span> <span class="preprocessor"> #define STBI__COMBO(a,b) ((a)*8+(b))</span></div> -<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span> <span class="preprocessor"></span><span class="preprocessor"> #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b)</span></div> -<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span> <span class="preprocessor"></span> <span class="comment">// convert source image with img_n components to one with req_comp components;</span></div> -<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  <span class="comment">// avoid switch per pixel, so use switch per scanline and massive macros</span></div> -<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>  <span class="keywordflow">switch</span> (STBI__COMBO(img_n, req_comp)) {</div> -<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span>  STBI__CASE(1,2) { dest[0]=src[0], dest[1]=0xffff; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>  STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>  STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=0xffff; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>  STBI__CASE(2,1) { dest[0]=src[0]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>  STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>  STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0], dest[3]=src[1]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>  STBI__CASE(3,4) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2],dest[3]=0xffff; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>  STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>  STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]), dest[1] = 0xffff; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>  STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>  STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]), dest[1] = src[3]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>  STBI__CASE(4,3) { dest[0]=src[0],dest[1]=src[1],dest[2]=src[2]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>  <span class="keywordflow">default</span>: STBI_ASSERT(0);</div> -<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  }</div> -<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span> <span class="preprocessor"> #undef STBI__CASE</span></div> -<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span> <span class="preprocessor"></span> }</div> -<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span> </div> -<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>  STBI_FREE(data);</div> -<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>  <span class="keywordflow">return</span> good;</div> -<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span> }</div> -<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span> </div> -<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> -<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__ldr_to_hdr(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp)</div> -<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span> {</div> -<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>  <span class="keywordtype">int</span> i,k,n;</div> -<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>  <span class="keywordtype">float</span> *output;</div> -<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>  <span class="keywordflow">if</span> (!data) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>  output = (<span class="keywordtype">float</span> *) stbi__malloc_mad4(x, y, comp, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), 0);</div> -<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>  <span class="keywordflow">if</span> (output == NULL) { STBI_FREE(data); <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>); }</div> -<div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>  <span class="comment">// compute number of non-alpha components</span></div> -<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>  <span class="keywordflow">if</span> (comp & 1) n = comp; <span class="keywordflow">else</span> n = comp-1;</div> -<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>  <span class="keywordflow">for</span> (i=0; i < x*y; ++i) {</div> -<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>  <span class="keywordflow">for</span> (k=0; k < n; ++k) {</div> -<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>  output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale);</div> -<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>  }</div> -<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>  <span class="keywordflow">if</span> (k < comp) output[i*comp + k] = data[i*comp+k]/255.0f;</div> -<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>  }</div> -<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>  STBI_FREE(data);</div> -<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>  <span class="keywordflow">return</span> output;</div> -<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span> }</div> -<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__float2int(x) ((int) (x))</span></div> -<div class="line"><a name="l01587"></a><span class="lineno"> 1587</span> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__hdr_to_ldr(<span class="keywordtype">float</span> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp)</div> -<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span> {</div> -<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  <span class="keywordtype">int</span> i,k,n;</div> -<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *output;</div> -<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>  <span class="keywordflow">if</span> (!data) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>  output = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(x, y, comp, 0);</div> -<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>  <span class="keywordflow">if</span> (output == NULL) { STBI_FREE(data); <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>); }</div> -<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>  <span class="comment">// compute number of non-alpha components</span></div> -<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  <span class="keywordflow">if</span> (comp & 1) n = comp; <span class="keywordflow">else</span> n = comp-1;</div> -<div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>  <span class="keywordflow">for</span> (i=0; i < x*y; ++i) {</div> -<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>  <span class="keywordflow">for</span> (k=0; k < n; ++k) {</div> -<div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>  <span class="keywordtype">float</span> z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f;</div> -<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>  <span class="keywordflow">if</span> (z < 0) z = 0;</div> -<div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>  <span class="keywordflow">if</span> (z > 255) z = 255;</div> -<div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>  output[i*comp + k] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) stbi__float2int(z);</div> -<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>  }</div> -<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>  <span class="keywordflow">if</span> (k < comp) {</div> -<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>  <span class="keywordtype">float</span> z = data[i*comp+k] * 255 + 0.5f;</div> -<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>  <span class="keywordflow">if</span> (z < 0) z = 0;</div> -<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>  <span class="keywordflow">if</span> (z > 255) z = 255;</div> -<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>  output[i*comp + k] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) stbi__float2int(z);</div> -<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>  }</div> -<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>  }</div> -<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>  STBI_FREE(data);</div> -<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span>  <span class="keywordflow">return</span> output;</div> -<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span> }</div> -<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span> <span class="comment">//</span></div> -<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span> <span class="comment">// "baseline" JPEG/JFIF decoder</span></div> -<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span> <span class="comment">//</span></div> -<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span> <span class="comment">// simple implementation</span></div> -<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span> <span class="comment">// - doesn't support delayed output of y-dimension</span></div> -<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span> <span class="comment">// - simple interface (only one output format: 8-bit interleaved RGB)</span></div> -<div class="line"><a name="l01622"></a><span class="lineno"> 1622</span> <span class="comment">// - doesn't try to recover corrupt jpegs</span></div> -<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span> <span class="comment">// - doesn't allow partial loading, loading multiple at once</span></div> -<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span> <span class="comment">// - still fast on x86 (copying globals into locals doesn't help x86)</span></div> -<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span> <span class="comment">// - allocates lots of intermediate memory (full size of all components)</span></div> -<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span> <span class="comment">// - non-interleaved case requires this anyway</span></div> -<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span> <span class="comment">// - allows good upsampling (see next)</span></div> -<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span> <span class="comment">// high-quality</span></div> -<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span> <span class="comment">// - upsampled channels are bilinearly interpolated, even across blocks</span></div> -<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span> <span class="comment">// - quality integer IDCT derived from IJG's 'slow'</span></div> -<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span> <span class="comment">// performance</span></div> -<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span> <span class="comment">// - fast huffman; reasonable integer IDCT</span></div> -<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span> <span class="comment">// - some SIMD kernels for common paths on targets with SSE2/NEON</span></div> -<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span> <span class="comment">// - uses a lot of intermediate memory, could cache poorly</span></div> -<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span> </div> -<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span> <span class="preprocessor">#ifndef STBI_NO_JPEG</span></div> -<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span> <span class="comment">// huffman decoding acceleration</span></div> -<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span> <span class="preprocessor">#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache</span></div> -<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span> {</div> -<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> fast[1 << FAST_BITS];</div> -<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  <span class="comment">// weirdly, repacking this into AoS is a 10% speed loss, instead of a win</span></div> -<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  stbi__uint16 code[256];</div> -<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> values[256];</div> -<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> size[257];</div> -<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxcode[18];</div> -<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  <span class="keywordtype">int</span> delta[17]; <span class="comment">// old 'firstsymbol' - old 'firstcode'</span></div> -<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span> } stbi__huffman;</div> -<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span> </div> -<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span> {</div> -<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  stbi__context *s;</div> -<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>  stbi__huffman huff_dc[4];</div> -<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>  stbi__huffman huff_ac[4];</div> -<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>  stbi__uint16 dequant[4][64];</div> -<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  stbi__int16 fast_ac[4][1 << FAST_BITS];</div> -<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span> </div> -<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span> <span class="comment">// sizes for components, interleaved MCUs</span></div> -<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>  <span class="keywordtype">int</span> img_h_max, img_v_max;</div> -<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>  <span class="keywordtype">int</span> img_mcu_x, img_mcu_y;</div> -<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>  <span class="keywordtype">int</span> img_mcu_w, img_mcu_h;</div> -<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span> </div> -<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span> <span class="comment">// definition of jpeg image component</span></div> -<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  <span class="keyword">struct</span></div> -<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>  {</div> -<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>  <span class="keywordtype">int</span> id;</div> -<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>  <span class="keywordtype">int</span> h,v;</div> -<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>  <span class="keywordtype">int</span> tq;</div> -<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>  <span class="keywordtype">int</span> hd,ha;</div> -<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>  <span class="keywordtype">int</span> dc_pred;</div> +<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>  stbi__l2h_gamma = gamma;</div> +<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span> }</div> +<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#af946583656a362a316b40c0421c20561">stbi_ldr_to_hdr_scale</a>(<span class="keywordtype">float</span> scale)</div> +<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span> {</div> +<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>  stbi__l2h_scale = scale;</div> +<div class="line"><a name="l01435"></a><span class="lineno"> 1435</span> }</div> +<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01438"></a><span class="lineno"> 1438</span> <span class="keyword">static</span> <span class="keywordtype">float</span> stbi__h2l_gamma_i = 1.0f / 2.2f, stbi__h2l_scale_i = 1.0f;</div> +<div class="line"><a name="l01439"></a><span class="lineno"> 1439</span> </div> +<div class="line"><a name="l01440"></a><span class="lineno"> 1440</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ab18889e43518d6b4421b705782bb1b5e">stbi_hdr_to_ldr_gamma</a>(<span class="keywordtype">float</span> gamma)</div> +<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span> {</div> +<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>  stbi__h2l_gamma_i = 1 / gamma;</div> +<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span> }</div> +<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#ae21cc1184eeb5cc814699f1ed62c5258">stbi_hdr_to_ldr_scale</a>(<span class="keywordtype">float</span> scale)</div> +<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span> {</div> +<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>  stbi__h2l_scale_i = 1 / scale;</div> +<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span> }</div> +<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span> </div> +<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span> <span class="comment">//</span></div> +<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span> <span class="comment">// Common code used by all image loaders</span></div> +<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span> <span class="comment">//</span></div> +<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span> </div> +<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span> <span class="keyword">enum</span> { STBI__SCAN_load = 0, STBI__SCAN_type, STBI__SCAN_header };</div> +<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span> </div> +<div class="line"><a name="l01456"></a><span class="lineno"> 1456</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__refill_buffer(stbi__context *s)</div> +<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span> {</div> +<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>  <span class="keywordtype">int</span> n = (s->io.read)(s->io_user_data, (<span class="keywordtype">char</span> *)s->buffer_start, s->buflen);</div> +<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>  <span class="keywordflow">if</span> (n == 0) {</div> +<div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>  <span class="comment">// at end of file, treat same as if from memory, but need to handle case</span></div> +<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>  <span class="comment">// where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file</span></div> +<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>  s->read_from_callbacks = 0;</div> +<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>  s->img_buffer = s->buffer_start;</div> +<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>  s->img_buffer_end = s->buffer_start + 1;</div> +<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>  *s->img_buffer = 0;</div> +<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>  s->img_buffer = s->buffer_start;</div> +<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  s->img_buffer_end = s->buffer_start + n;</div> +<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>  }</div> +<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span> }</div> +<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span> </div> +<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span> stbi_inline <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__get8(stbi__context *s)</div> +<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span> {</div> +<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  <span class="keywordflow">if</span> (s->img_buffer < s->img_buffer_end)</div> +<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>  <span class="keywordflow">return</span> *s->img_buffer++;</div> +<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  <span class="keywordflow">if</span> (s->read_from_callbacks) {</div> +<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  stbi__refill_buffer(s);</div> +<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>  <span class="keywordflow">return</span> *s->img_buffer++;</div> +<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>  }</div> +<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l01481"></a><span class="lineno"> 1481</span> }</div> +<div class="line"><a name="l01482"></a><span class="lineno"> 1482</span> </div> +<div class="line"><a name="l01483"></a><span class="lineno"> 1483</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__at_eof(stbi__context *s)</div> +<div class="line"><a name="l01484"></a><span class="lineno"> 1484</span> {</div> +<div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>  <span class="keywordflow">if</span> (s->io.read) {</div> +<div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>  <span class="keywordflow">if</span> (!(s->io.eof)(s->io_user_data))</div> +<div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>  <span class="comment">// if feof() is true, check if buffer = end</span></div> +<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>  <span class="comment">// special case: we've only got the special 0 character at the end</span></div> +<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>  <span class="keywordflow">if</span> (s->read_from_callbacks == 0)</div> +<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>  }</div> +<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span> </div> +<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  <span class="keywordflow">return</span> s->img_buffer >= s->img_buffer_end;</div> +<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span> }</div> +<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span> </div> +<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__skip(stbi__context *s, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span> {</div> +<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  <span class="keywordflow">if</span> (n < 0) {</div> +<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  s->img_buffer = s->img_buffer_end;</div> +<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  <span class="keywordflow">return</span>;</div> +<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  }</div> +<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  <span class="keywordflow">if</span> (s->io.read) {</div> +<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  <span class="keywordtype">int</span> blen = (int)(s->img_buffer_end - s->img_buffer);</div> +<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  <span class="keywordflow">if</span> (blen < n) {</div> +<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  s->img_buffer = s->img_buffer_end;</div> +<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  (s->io.skip)(s->io_user_data, n - blen);</div> +<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>  <span class="keywordflow">return</span>;</div> +<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>  }</div> +<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>  }</div> +<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  s->img_buffer += n;</div> +<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span> }</div> +<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span> </div> +<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__getn(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *buffer, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span> {</div> +<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>  <span class="keywordflow">if</span> (s->io.read) {</div> +<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  <span class="keywordtype">int</span> blen = (int)(s->img_buffer_end - s->img_buffer);</div> +<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>  <span class="keywordflow">if</span> (blen < n) {</div> +<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>  <span class="keywordtype">int</span> res, count;</div> +<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span> </div> +<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>  memcpy(buffer, s->img_buffer, blen);</div> +<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span> </div> +<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  count =</div> +<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>  (s->io.read)(s->io_user_data, (<span class="keywordtype">char</span> *)buffer + blen, n - blen);</div> +<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  res = (count == (n - blen));</div> +<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>  s->img_buffer = s->img_buffer_end;</div> +<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>  <span class="keywordflow">return</span> res;</div> +<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  }</div> +<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  }</div> +<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span> </div> +<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span>  <span class="keywordflow">if</span> (s->img_buffer + n <= s->img_buffer_end) {</div> +<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>  memcpy(buffer, s->img_buffer, n);</div> +<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>  s->img_buffer += n;</div> +<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>  } <span class="keywordflow">else</span></div> +<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span> }</div> +<div class="line"><a name="l01538"></a><span class="lineno"> 1538</span> </div> +<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__get16be(stbi__context *s)</div> +<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span> {</div> +<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  <span class="keywordtype">int</span> z = stbi__get8(s);</div> +<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>  <span class="keywordflow">return</span> (z << 8) + stbi__get8(s);</div> +<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span> }</div> +<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span> </div> +<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span> <span class="keyword">static</span> stbi__uint32 stbi__get32be(stbi__context *s)</div> +<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span> {</div> +<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>  stbi__uint32 z = stbi__get16be(s);</div> +<div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>  <span class="keywordflow">return</span> (z << 16) + stbi__get16be(s);</div> +<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span> }</div> +<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span> </div> +<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span> <span class="preprocessor">#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF)</span></div> +<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span> <span class="preprocessor"></span><span class="comment">// nothing</span></div> +<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span> <span class="preprocessor">#else</span></div> +<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__get16le(stbi__context *s)</div> +<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span> {</div> +<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  <span class="keywordtype">int</span> z = stbi__get8(s);</div> +<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>  <span class="keywordflow">return</span> z + (stbi__get8(s) << 8);</div> +<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span> }</div> +<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> +<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span> <span class="preprocessor"></span><span class="keyword">static</span> stbi__uint32 stbi__get32le(stbi__context *s)</div> +<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span> {</div> +<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>  stbi__uint32 z = stbi__get16le(s);</div> +<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>  <span class="keywordflow">return</span> z + (stbi__get16le(s) << 16);</div> +<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span> }</div> +<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span> <span class="preprocessor">#define STBI__BYTECAST(x) \</span></div> +<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span> <span class="preprocessor"> ((stbi_uc)((x)&255)) // truncate int to byte without warnings</span></div> +<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span> <span class="comment">//</span></div> +<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span> <span class="comment">// generic converter from built-in img_n to req_comp</span></div> +<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span> <span class="comment">// individual types do this automatically as much as possible (e.g. jpeg</span></div> +<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span> <span class="comment">// does all cases internally since it needs to colorspace convert anyway,</span></div> +<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span> <span class="comment">// and it never has alpha, so very few cases ). png can automatically</span></div> +<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span> <span class="comment">// interleave an alpha=255 channel, but falls back to this for other cases</span></div> +<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span> <span class="comment">//</span></div> +<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span> <span class="comment">// assume data buffer is malloced, so malloc a new one and free that one</span></div> +<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span> <span class="comment">// only failure mode is malloc failing</span></div> +<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span> </div> +<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__compute_y(<span class="keywordtype">int</span> r, <span class="keywordtype">int</span> g, <span class="keywordtype">int</span> b)</div> +<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span> {</div> +<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)(((r * 77) + (g * 150) + (29 * b)) >> 8);</div> +<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span> }</div> +<div class="line"><a name="l01587"></a><span class="lineno"> 1587</span> </div> +<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *stbi__convert_format(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data, <span class="keywordtype">int</span> img_n,</div> +<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  <span class="keywordtype">int</span> req_comp, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x,</div> +<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> y)</div> +<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span> {</div> +<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>  <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *good;</div> +<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span> </div> +<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  <span class="keywordflow">if</span> (req_comp == img_n)</div> +<div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>  <span class="keywordflow">return</span> data;</div> +<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>  STBI_ASSERT(req_comp >= 1 && req_comp <= 4);</div> +<div class="line"><a name="l01598"></a><span class="lineno"> 1598</span> </div> +<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>  good = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)stbi__malloc_mad3(req_comp, x, y, 0);</div> +<div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>  <span class="keywordflow">if</span> (good == NULL) {</div> +<div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>  }</div> +<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span> </div> +<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>  <span class="keywordflow">for</span> (j = 0; j < (int)y; ++j) {</div> +<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *src = data + j * x * img_n;</div> +<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *dest = good + j * x * req_comp;</div> +<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span> </div> +<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span> <span class="preprocessor">#define STBI__COMBO(a, b) ((a)*8 + (b))</span></div> +<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__CASE(a, b) \</span></div> +<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span> <span class="preprocessor"> case STBI__COMBO(a, b): \</span></div> +<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span> <span class="preprocessor"> for (i = x - 1; i >= 0; --i, src += a, dest += b)</span></div> +<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span> <span class="preprocessor"></span> <span class="comment">// convert source image with img_n components to one with req_comp</span></div> +<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>  <span class="comment">// components; avoid switch per pixel, so use switch per scanline and</span></div> +<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>  <span class="comment">// massive macros</span></div> +<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>  <span class="keywordflow">switch</span> (STBI__COMBO(img_n, req_comp)) {</div> +<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>  STBI__CASE(1, 2) { dest[0] = src[0], dest[1] = 255; }</div> +<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>  STBI__CASE(1, 3) { dest[0] = dest[1] = dest[2] = src[0]; }</div> +<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>  STBI__CASE(1, 4)</div> +<div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>  {</div> +<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>  dest[0] = dest[1] = dest[2] = src[0], dest[3] = 255;</div> +<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>  }</div> +<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>  STBI__CASE(2, 1) { dest[0] = src[0]; }</div> +<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>  STBI__CASE(2, 3) { dest[0] = dest[1] = dest[2] = src[0]; }</div> +<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>  STBI__CASE(2, 4)</div> +<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>  {</div> +<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>  dest[0] = dest[1] = dest[2] = src[0], dest[3] = src[1];</div> +<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>  }</div> +<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>  STBI__CASE(3, 4)</div> +<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>  {</div> +<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>  dest[0] = src[0], dest[1] = src[1], dest[2] = src[2],</div> +<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>  dest[3] = 255;</div> +<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>  }</div> +<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>  STBI__CASE(3, 1)</div> +<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>  {</div> +<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>  dest[0] = stbi__compute_y(src[0], src[1], src[2]);</div> +<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  }</div> +<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  STBI__CASE(3, 2)</div> +<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>  {</div> +<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>  dest[0] = stbi__compute_y(src[0], src[1], src[2]),</div> +<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  dest[1] = 255;</div> +<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>  }</div> +<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>  STBI__CASE(4, 1)</div> +<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>  {</div> +<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  dest[0] = stbi__compute_y(src[0], src[1], src[2]);</div> +<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>  }</div> +<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>  STBI__CASE(4, 2)</div> +<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  {</div> +<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>  dest[0] = stbi__compute_y(src[0], src[1], src[2]),</div> +<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>  dest[1] = src[3];</div> +<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>  }</div> +<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>  STBI__CASE(4, 3)</div> +<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>  {</div> +<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>  dest[0] = src[0], dest[1] = src[1], dest[2] = src[2];</div> +<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  }</div> +<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>  STBI_ASSERT(0);</div> +<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>  }</div> +<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span> <span class="preprocessor">#undef STBI__CASE</span></div> +<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span> <span class="preprocessor"></span> }</div> <div class="line"><a name="l01673"></a><span class="lineno"> 1673</span> </div> -<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>  <span class="keywordtype">int</span> x,y,w2,h2;</div> -<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *data;</div> -<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>  <span class="keywordtype">void</span> *raw_data, *raw_coeff;</div> -<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *linebuf;</div> -<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>  <span class="keywordtype">short</span> *coeff; <span class="comment">// progressive only</span></div> -<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>  <span class="keywordtype">int</span> coeff_w, coeff_h; <span class="comment">// number of 8x8 coefficient blocks</span></div> -<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>  } img_comp[4];</div> -<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span> </div> -<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>  stbi__uint32 code_buffer; <span class="comment">// jpeg entropy-coded buffer</span></div> -<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>  <span class="keywordtype">int</span> code_bits; <span class="comment">// number of valid bits</span></div> -<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> marker; <span class="comment">// marker seen while filling entropy buffer</span></div> -<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>  <span class="keywordtype">int</span> nomore; <span class="comment">// flag if we saw a marker so must stop</span></div> -<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span> </div> -<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>  <span class="keywordtype">int</span> progressive;</div> -<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>  <span class="keywordtype">int</span> spec_start;</div> -<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>  <span class="keywordtype">int</span> spec_end;</div> -<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>  <span class="keywordtype">int</span> succ_high;</div> -<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>  <span class="keywordtype">int</span> succ_low;</div> -<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>  <span class="keywordtype">int</span> eob_run;</div> -<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>  <span class="keywordtype">int</span> jfif;</div> -<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>  <span class="keywordtype">int</span> app14_color_transform; <span class="comment">// Adobe APP14 tag</span></div> -<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>  <span class="keywordtype">int</span> rgb;</div> -<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span> </div> -<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>  <span class="keywordtype">int</span> scan_n, order[4];</div> -<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  <span class="keywordtype">int</span> restart_interval, todo;</div> +<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  <span class="keywordflow">return</span> good;</div> +<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span> }</div> +<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span> </div> +<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span> <span class="keyword">static</span> stbi__uint16 stbi__compute_y_16(<span class="keywordtype">int</span> r, <span class="keywordtype">int</span> g, <span class="keywordtype">int</span> b)</div> +<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span> {</div> +<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>  <span class="keywordflow">return</span> (stbi__uint16)(((r * 77) + (g * 150) + (29 * b)) >> 8);</div> +<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span> }</div> +<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span> </div> +<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span> <span class="keyword">static</span> stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, <span class="keywordtype">int</span> img_n,</div> +<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  <span class="keywordtype">int</span> req_comp, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x,</div> +<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> y)</div> +<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span> {</div> +<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>  <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>  stbi__uint16 *good;</div> +<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span> </div> +<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>  <span class="keywordflow">if</span> (req_comp == img_n)</div> +<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>  <span class="keywordflow">return</span> data;</div> +<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>  STBI_ASSERT(req_comp >= 1 && req_comp <= 4);</div> +<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span> </div> +<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>  good = (stbi__uint16 *)stbi__malloc(req_comp * x * y * 2);</div> +<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>  <span class="keywordflow">if</span> (good == NULL) {</div> +<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>  <span class="keywordflow">return</span> (stbi__uint16 *)stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  }</div> <div class="line"><a name="l01699"></a><span class="lineno"> 1699</span> </div> -<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span> <span class="comment">// kernels</span></div> -<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>  void (*idct_block_kernel)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64]);</div> -<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  void (*YCbCr_to_RGB_kernel)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcb, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcr, <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> step);</div> -<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *(*resample_row_hv_2_kernel)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs);</div> -<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span> } stbi__jpeg;</div> -<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span> </div> -<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__build_huffman(stbi__huffman *h, <span class="keywordtype">int</span> *count)</div> -<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span> {</div> -<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>  <span class="keywordtype">int</span> i,j,k=0,code;</div> -<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>  <span class="comment">// build size list for each symbol (from JPEG spec)</span></div> -<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>  <span class="keywordflow">for</span> (i=0; i < 16; ++i)</div> -<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>  <span class="keywordflow">for</span> (j=0; j < count[i]; ++j)</div> -<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>  h->size[k++] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) (i+1);</div> -<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>  h->size[k] = 0;</div> -<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span> </div> -<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>  <span class="comment">// compute actual symbols (from jpeg spec)</span></div> -<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>  code = 0;</div> -<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>  k = 0;</div> -<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>  <span class="keywordflow">for</span>(j=1; j <= 16; ++j) {</div> -<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>  <span class="comment">// compute delta to add to code to compute symbol id</span></div> -<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>  h->delta[j] = k - code;</div> -<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>  <span class="keywordflow">if</span> (h->size[k] == j) {</div> -<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>  <span class="keywordflow">while</span> (h->size[k] == j)</div> -<div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>  h->code[k++] = (stbi__uint16) (code++);</div> -<div class="line"><a name="l01724"></a><span class="lineno"> 1724</span>  <span class="keywordflow">if</span> (code-1 >= (1 << j)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad code lengths"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>  }</div> -<div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>  <span class="comment">// compute largest code + 1 for this size, preshifted as needed later</span></div> -<div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>  h->maxcode[j] = code << (16-j);</div> -<div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>  code <<= 1;</div> -<div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>  }</div> -<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>  h->maxcode[j] = 0xffffffff;</div> -<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span> </div> -<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>  <span class="comment">// build non-spec acceleration table; 255 is flag for not-accelerated</span></div> -<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  memset(h->fast, 255, 1 << FAST_BITS);</div> -<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>  <span class="keywordflow">for</span> (i=0; i < k; ++i) {</div> -<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>  <span class="keywordtype">int</span> s = h->size[i];</div> -<div class="line"><a name="l01736"></a><span class="lineno"> 1736</span>  <span class="keywordflow">if</span> (s <= FAST_BITS) {</div> -<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>  <span class="keywordtype">int</span> c = h->code[i] << (FAST_BITS-s);</div> -<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>  <span class="keywordtype">int</span> m = 1 << (FAST_BITS-s);</div> -<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  <span class="keywordflow">for</span> (j=0; j < m; ++j) {</div> -<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>  h->fast[c+j] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) i;</div> -<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>  }</div> -<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>  }</div> -<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>  }</div> -<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span> }</div> -<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span> </div> -<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span> <span class="comment">// build a table that decodes both magnitude and value of small ACs in</span></div> -<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span> <span class="comment">// one go.</span></div> -<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h)</div> -<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span> {</div> -<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  <span class="keywordflow">for</span> (i=0; i < (1 << FAST_BITS); ++i) {</div> -<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> fast = h->fast[i];</div> -<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>  fast_ac[i] = 0;</div> -<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>  <span class="keywordflow">if</span> (fast < 255) {</div> -<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>  <span class="keywordtype">int</span> rs = h->values[fast];</div> -<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>  <span class="keywordtype">int</span> run = (rs >> 4) & 15;</div> -<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>  <span class="keywordtype">int</span> magbits = rs & 15;</div> -<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  <span class="keywordtype">int</span> len = h->size[fast];</div> -<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span> </div> -<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>  <span class="keywordflow">if</span> (magbits && len + magbits <= FAST_BITS) {</div> -<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>  <span class="comment">// magnitude code followed by receive_extend code</span></div> -<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>  <span class="keywordtype">int</span> k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits);</div> -<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>  <span class="keywordtype">int</span> m = 1 << (magbits - 1);</div> -<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>  <span class="keywordflow">if</span> (k < m) k += (~0<a class="code" href="namespaceyage.html#ad5a9307442e5daa8810aff942564a822a4c614360da93c0a041b22e537de151eb">U</a> << magbits) + 1;</div> -<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>  <span class="comment">// if the result is small enough, we can fit it in fast_ac table</span></div> -<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>  <span class="keywordflow">if</span> (k >= -128 && k <= 127)</div> -<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span>  fast_ac[i] = (stbi__int16) ((k << 8) + (run << 4) + (len + magbits));</div> -<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>  }</div> -<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>  }</div> -<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span>  }</div> -<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span> }</div> -<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span> </div> -<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__grow_buffer_unsafe(stbi__jpeg *j)</div> +<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>  <span class="keywordflow">for</span> (j = 0; j < (int)y; ++j) {</div> +<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>  stbi__uint16 *src = data + j * x * img_n;</div> +<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  stbi__uint16 *dest = good + j * x * req_comp;</div> +<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span> </div> +<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span> <span class="preprocessor">#define STBI__COMBO(a, b) ((a)*8 + (b))</span></div> +<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__CASE(a, b) \</span></div> +<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span> <span class="preprocessor"> case STBI__COMBO(a, b): \</span></div> +<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span> <span class="preprocessor"> for (i = x - 1; i >= 0; --i, src += a, dest += b)</span></div> +<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span> <span class="preprocessor"></span> <span class="comment">// convert source image with img_n components to one with req_comp</span></div> +<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>  <span class="comment">// components; avoid switch per pixel, so use switch per scanline and</span></div> +<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>  <span class="comment">// massive macros</span></div> +<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>  <span class="keywordflow">switch</span> (STBI__COMBO(img_n, req_comp)) {</div> +<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>  STBI__CASE(1, 2) { dest[0] = src[0], dest[1] = 0xffff; }</div> +<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>  STBI__CASE(1, 3) { dest[0] = dest[1] = dest[2] = src[0]; }</div> +<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>  STBI__CASE(1, 4)</div> +<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>  {</div> +<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>  dest[0] = dest[1] = dest[2] = src[0], dest[3] = 0xffff;</div> +<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>  }</div> +<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>  STBI__CASE(2, 1) { dest[0] = src[0]; }</div> +<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>  STBI__CASE(2, 3) { dest[0] = dest[1] = dest[2] = src[0]; }</div> +<div class="line"><a name="l01724"></a><span class="lineno"> 1724</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>  STBI__CASE(2, 4)</div> +<div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>  {</div> +<div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>  dest[0] = dest[1] = dest[2] = src[0], dest[3] = src[1];</div> +<div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>  }</div> +<div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>  STBI__CASE(3, 4)</div> +<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>  {</div> +<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>  dest[0] = src[0], dest[1] = src[1], dest[2] = src[2],</div> +<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  dest[3] = 0xffff;</div> +<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>  }</div> +<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01736"></a><span class="lineno"> 1736</span>  STBI__CASE(3, 1)</div> +<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>  {</div> +<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>  dest[0] = stbi__compute_y_16(src[0], src[1], src[2]);</div> +<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  }</div> +<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>  STBI__CASE(3, 2)</div> +<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>  {</div> +<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>  dest[0] = stbi__compute_y_16(src[0], src[1], src[2]),</div> +<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>  dest[1] = 0xffff;</div> +<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>  }</div> +<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>  STBI__CASE(4, 1)</div> +<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>  {</div> +<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>  dest[0] = stbi__compute_y_16(src[0], src[1], src[2]);</div> +<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>  }</div> +<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  STBI__CASE(4, 2)</div> +<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  {</div> +<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>  dest[0] = stbi__compute_y_16(src[0], src[1], src[2]),</div> +<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>  dest[1] = src[3];</div> +<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>  }</div> +<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>  STBI__CASE(4, 3)</div> +<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  {</div> +<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>  dest[0] = src[0], dest[1] = src[1], dest[2] = src[2];</div> +<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>  }</div> +<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>  STBI_ASSERT(0);</div> +<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>  }</div> +<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span> <span class="preprocessor">#undef STBI__CASE</span></div> +<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span> <span class="preprocessor"></span> }</div> +<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span> </div> +<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>  <span class="keywordflow">return</span> good;</div> +<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span> }</div> +<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span> </div> +<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span> <span class="preprocessor">#ifndef STBI_NO_LINEAR</span></div> +<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__ldr_to_hdr(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp)</div> <div class="line"><a name="l01775"></a><span class="lineno"> 1775</span> {</div> -<div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>  <span class="keywordtype">int</span> b = j->nomore ? 0 : stbi__get8(j->s);</div> -<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>  <span class="keywordflow">if</span> (b == 0xff) {</div> -<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>  <span class="keywordtype">int</span> c = stbi__get8(j->s);</div> -<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>  <span class="keywordflow">while</span> (c == 0xff) c = stbi__get8(j->s); <span class="comment">// consume fill bytes</span></div> -<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>  <span class="keywordflow">if</span> (c != 0) {</div> -<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>  j->marker = (<span class="keywordtype">unsigned</span> char) c;</div> -<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>  j->nomore = 1;</div> -<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>  <span class="keywordflow">return</span>;</div> -<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>  }</div> -<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>  }</div> -<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>  j->code_buffer |= b << (24 - j->code_bits);</div> -<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>  j->code_bits += 8;</div> -<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>  } <span class="keywordflow">while</span> (j->code_bits <= 24);</div> -<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span> }</div> -<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span> </div> -<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span> <span class="comment">// (1 << n) - 1</span></div> -<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span> <span class="keyword">static</span> stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535};</div> -<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span> </div> -<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span> <span class="comment">// decode a jpeg huffman value from the bitstream</span></div> -<div class="line"><a name="l01796"></a><span class="lineno"> 1796</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h)</div> -<div class="line"><a name="l01797"></a><span class="lineno"> 1797</span> {</div> -<div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> temp;</div> -<div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>  <span class="keywordtype">int</span> c,k;</div> -<div class="line"><a name="l01800"></a><span class="lineno"> 1800</span> </div> -<div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>  <span class="keywordflow">if</span> (j->code_bits < 16) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01802"></a><span class="lineno"> 1802</span> </div> -<div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>  <span class="comment">// look at the top FAST_BITS and determine what symbol ID it is,</span></div> -<div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>  <span class="comment">// if the code is <= FAST_BITS</span></div> -<div class="line"><a name="l01805"></a><span class="lineno"> 1805</span>  c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);</div> -<div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>  k = h->fast[c];</div> -<div class="line"><a name="l01807"></a><span class="lineno"> 1807</span>  <span class="keywordflow">if</span> (k < 255) {</div> -<div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>  <span class="keywordtype">int</span> s = h->size[k];</div> -<div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>  <span class="keywordflow">if</span> (s > j->code_bits)</div> -<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>  j->code_buffer <<= s;</div> -<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>  j->code_bits -= s;</div> -<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>  <span class="keywordflow">return</span> h->values[k];</div> -<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>  }</div> -<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span> </div> -<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>  <span class="comment">// naive test is to shift the code_buffer down so k bits are</span></div> -<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>  <span class="comment">// valid, then test against maxcode. To speed this up, we've</span></div> -<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>  <span class="comment">// preshifted maxcode left so that it has (16-k) 0s at the</span></div> -<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>  <span class="comment">// end; in other words, regardless of the number of bits, it</span></div> -<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>  <span class="comment">// wants to be compared against something shifted to have 16;</span></div> -<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>  <span class="comment">// that way we don't need to shift inside the loop.</span></div> -<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>  temp = j->code_buffer >> 16;</div> -<div class="line"><a name="l01823"></a><span class="lineno"> 1823</span>  <span class="keywordflow">for</span> (k=FAST_BITS+1 ; ; ++k)</div> -<div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>  <span class="keywordflow">if</span> (temp < h->maxcode[k])</div> -<div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l01826"></a><span class="lineno"> 1826</span>  <span class="keywordflow">if</span> (k == 17) {</div> -<div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>  <span class="comment">// error! code not found</span></div> -<div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>  j->code_bits -= 16;</div> -<div class="line"><a name="l01829"></a><span class="lineno"> 1829</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>  }</div> -<div class="line"><a name="l01831"></a><span class="lineno"> 1831</span> </div> -<div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>  <span class="keywordflow">if</span> (k > j->code_bits)</div> -<div class="line"><a name="l01833"></a><span class="lineno"> 1833</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l01834"></a><span class="lineno"> 1834</span> </div> -<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>  <span class="comment">// convert the huffman code to the symbol id</span></div> -<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>  c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k];</div> -<div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>  STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]);</div> -<div class="line"><a name="l01838"></a><span class="lineno"> 1838</span> </div> -<div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>  <span class="comment">// convert the id to a symbol</span></div> -<div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>  j->code_bits -= k;</div> -<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>  j->code_buffer <<= k;</div> -<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>  <span class="keywordflow">return</span> h->values[c];</div> -<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span> }</div> -<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span> </div> -<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span> <span class="comment">// bias[n] = (-1<<n) + 1</span></div> -<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <span class="keyword">const</span> stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767};</div> -<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span> </div> -<div class="line"><a name="l01848"></a><span class="lineno"> 1848</span> <span class="comment">// combined JPEG 'receive' and JPEG 'extend', since baseline</span></div> -<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span> <span class="comment">// always extends everything it receives.</span></div> -<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__extend_receive(stbi__jpeg *j, <span class="keywordtype">int</span> n)</div> -<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span> {</div> -<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>  <span class="keywordtype">int</span> sgn;</div> -<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>  <span class="keywordflow">if</span> (j->code_bits < n) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span> </div> -<div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>  sgn = (stbi__int32)j->code_buffer >> 31; <span class="comment">// sign bit is always in MSB</span></div> -<div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>  k = stbi_lrot(j->code_buffer, n);</div> -<div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>  STBI_ASSERT(n >= 0 && n < (<span class="keywordtype">int</span>) (<span class="keyword">sizeof</span>(stbi__bmask)/<span class="keyword">sizeof</span>(*stbi__bmask)));</div> -<div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>  j->code_buffer = k & ~stbi__bmask[n];</div> -<div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>  k &= stbi__bmask[n];</div> -<div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>  j->code_bits -= n;</div> -<div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>  <span class="keywordflow">return</span> k + (stbi__jbias[n] & ~sgn);</div> -<div class="line"><a name="l01863"></a><span class="lineno"> 1863</span> }</div> -<div class="line"><a name="l01864"></a><span class="lineno"> 1864</span> </div> -<div class="line"><a name="l01865"></a><span class="lineno"> 1865</span> <span class="comment">// get some unsigned bits</span></div> -<div class="line"><a name="l01866"></a><span class="lineno"> 1866</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_get_bits(stbi__jpeg *j, <span class="keywordtype">int</span> n)</div> -<div class="line"><a name="l01867"></a><span class="lineno"> 1867</span> {</div> -<div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l01869"></a><span class="lineno"> 1869</span>  <span class="keywordflow">if</span> (j->code_bits < n) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>  k = stbi_lrot(j->code_buffer, n);</div> -<div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>  j->code_buffer = k & ~stbi__bmask[n];</div> -<div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>  k &= stbi__bmask[n];</div> -<div class="line"><a name="l01873"></a><span class="lineno"> 1873</span>  j->code_bits -= n;</div> -<div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>  <span class="keywordflow">return</span> k;</div> -<div class="line"><a name="l01875"></a><span class="lineno"> 1875</span> }</div> -<div class="line"><a name="l01876"></a><span class="lineno"> 1876</span> </div> -<div class="line"><a name="l01877"></a><span class="lineno"> 1877</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_get_bit(stbi__jpeg *j)</div> -<div class="line"><a name="l01878"></a><span class="lineno"> 1878</span> {</div> -<div class="line"><a name="l01879"></a><span class="lineno"> 1879</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l01880"></a><span class="lineno"> 1880</span>  <span class="keywordflow">if</span> (j->code_bits < 1) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01881"></a><span class="lineno"> 1881</span>  k = j->code_buffer;</div> -<div class="line"><a name="l01882"></a><span class="lineno"> 1882</span>  j->code_buffer <<= 1;</div> -<div class="line"><a name="l01883"></a><span class="lineno"> 1883</span>  --j->code_bits;</div> -<div class="line"><a name="l01884"></a><span class="lineno"> 1884</span>  <span class="keywordflow">return</span> k & 0x80000000;</div> -<div class="line"><a name="l01885"></a><span class="lineno"> 1885</span> }</div> -<div class="line"><a name="l01886"></a><span class="lineno"> 1886</span> </div> -<div class="line"><a name="l01887"></a><span class="lineno"> 1887</span> <span class="comment">// given a value that's at position X in the zigzag stream,</span></div> -<div class="line"><a name="l01888"></a><span class="lineno"> 1888</span> <span class="comment">// where does it appear in the 8x8 matrix coded as row-major?</span></div> -<div class="line"><a name="l01889"></a><span class="lineno"> 1889</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__jpeg_dezigzag[64+15] =</div> -<div class="line"><a name="l01890"></a><span class="lineno"> 1890</span> {</div> -<div class="line"><a name="l01891"></a><span class="lineno"> 1891</span>  0, 1, 8, 16, 9, 2, 3, 10,</div> -<div class="line"><a name="l01892"></a><span class="lineno"> 1892</span>  17, 24, 32, 25, 18, 11, 4, 5,</div> -<div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>  12, 19, 26, 33, 40, 48, 41, 34,</div> -<div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>  27, 20, 13, 6, 7, 14, 21, 28,</div> -<div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>  35, 42, 49, 56, 57, 50, 43, 36,</div> -<div class="line"><a name="l01896"></a><span class="lineno"> 1896</span>  29, 22, 15, 23, 30, 37, 44, 51,</div> -<div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>  58, 59, 52, 45, 38, 31, 39, 46,</div> -<div class="line"><a name="l01898"></a><span class="lineno"> 1898</span>  53, 60, 61, 54, 47, 55, 62, 63,</div> -<div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>  <span class="comment">// let corrupt input sample past end</span></div> -<div class="line"><a name="l01900"></a><span class="lineno"> 1900</span>  63, 63, 63, 63, 63, 63, 63, 63,</div> -<div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>  63, 63, 63, 63, 63, 63, 63</div> -<div class="line"><a name="l01902"></a><span class="lineno"> 1902</span> };</div> -<div class="line"><a name="l01903"></a><span class="lineno"> 1903</span> </div> -<div class="line"><a name="l01904"></a><span class="lineno"> 1904</span> <span class="comment">// decode one 64-entry block--</span></div> -<div class="line"><a name="l01905"></a><span class="lineno"> 1905</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_decode_block(stbi__jpeg *j, <span class="keywordtype">short</span> data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, <span class="keywordtype">int</span> b, stbi__uint16 *dequant)</div> -<div class="line"><a name="l01906"></a><span class="lineno"> 1906</span> {</div> -<div class="line"><a name="l01907"></a><span class="lineno"> 1907</span>  <span class="keywordtype">int</span> diff,dc,k;</div> -<div class="line"><a name="l01908"></a><span class="lineno"> 1908</span>  <span class="keywordtype">int</span> t;</div> -<div class="line"><a name="l01909"></a><span class="lineno"> 1909</span> </div> -<div class="line"><a name="l01910"></a><span class="lineno"> 1910</span>  <span class="keywordflow">if</span> (j->code_bits < 16) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01911"></a><span class="lineno"> 1911</span>  t = stbi__jpeg_huff_decode(j, hdc);</div> -<div class="line"><a name="l01912"></a><span class="lineno"> 1912</span>  <span class="keywordflow">if</span> (t < 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l01913"></a><span class="lineno"> 1913</span> </div> -<div class="line"><a name="l01914"></a><span class="lineno"> 1914</span>  <span class="comment">// 0 all the ac values now so we can do it 32-bits at a time</span></div> -<div class="line"><a name="l01915"></a><span class="lineno"> 1915</span>  memset(data,0,64*<span class="keyword">sizeof</span>(data[0]));</div> -<div class="line"><a name="l01916"></a><span class="lineno"> 1916</span> </div> -<div class="line"><a name="l01917"></a><span class="lineno"> 1917</span>  diff = t ? stbi__extend_receive(j, t) : 0;</div> -<div class="line"><a name="l01918"></a><span class="lineno"> 1918</span>  dc = j->img_comp[b].dc_pred + diff;</div> -<div class="line"><a name="l01919"></a><span class="lineno"> 1919</span>  j->img_comp[b].dc_pred = dc;</div> -<div class="line"><a name="l01920"></a><span class="lineno"> 1920</span>  data[0] = (short) (dc * dequant[0]);</div> -<div class="line"><a name="l01921"></a><span class="lineno"> 1921</span> </div> -<div class="line"><a name="l01922"></a><span class="lineno"> 1922</span>  <span class="comment">// decode AC components, see JPEG spec</span></div> -<div class="line"><a name="l01923"></a><span class="lineno"> 1923</span>  k = 1;</div> -<div class="line"><a name="l01924"></a><span class="lineno"> 1924</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l01925"></a><span class="lineno"> 1925</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> zig;</div> -<div class="line"><a name="l01926"></a><span class="lineno"> 1926</span>  <span class="keywordtype">int</span> c,r,s;</div> -<div class="line"><a name="l01927"></a><span class="lineno"> 1927</span>  <span class="keywordflow">if</span> (j->code_bits < 16) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01928"></a><span class="lineno"> 1928</span>  c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);</div> -<div class="line"><a name="l01929"></a><span class="lineno"> 1929</span>  r = fac[c];</div> -<div class="line"><a name="l01930"></a><span class="lineno"> 1930</span>  <span class="keywordflow">if</span> (r) { <span class="comment">// fast-AC path</span></div> -<div class="line"><a name="l01931"></a><span class="lineno"> 1931</span>  k += (r >> 4) & 15; <span class="comment">// run</span></div> -<div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>  s = r & 15; <span class="comment">// combined length</span></div> -<div class="line"><a name="l01933"></a><span class="lineno"> 1933</span>  j->code_buffer <<= s;</div> -<div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>  j->code_bits -= s;</div> -<div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>  <span class="comment">// decode into unzigzag'd location</span></div> -<div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>  zig = stbi__jpeg_dezigzag[k++];</div> -<div class="line"><a name="l01937"></a><span class="lineno"> 1937</span>  data[zig] = (short) ((r >> 8) * dequant[zig]);</div> -<div class="line"><a name="l01938"></a><span class="lineno"> 1938</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l01939"></a><span class="lineno"> 1939</span>  <span class="keywordtype">int</span> rs = stbi__jpeg_huff_decode(j, hac);</div> -<div class="line"><a name="l01940"></a><span class="lineno"> 1940</span>  <span class="keywordflow">if</span> (rs < 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l01941"></a><span class="lineno"> 1941</span>  s = rs & 15;</div> -<div class="line"><a name="l01942"></a><span class="lineno"> 1942</span>  r = rs >> 4;</div> -<div class="line"><a name="l01943"></a><span class="lineno"> 1943</span>  <span class="keywordflow">if</span> (s == 0) {</div> -<div class="line"><a name="l01944"></a><span class="lineno"> 1944</span>  <span class="keywordflow">if</span> (rs != 0xf0) <span class="keywordflow">break</span>; <span class="comment">// end block</span></div> -<div class="line"><a name="l01945"></a><span class="lineno"> 1945</span>  k += 16;</div> -<div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l01947"></a><span class="lineno"> 1947</span>  k += r;</div> -<div class="line"><a name="l01948"></a><span class="lineno"> 1948</span>  <span class="comment">// decode into unzigzag'd location</span></div> -<div class="line"><a name="l01949"></a><span class="lineno"> 1949</span>  zig = stbi__jpeg_dezigzag[k++];</div> -<div class="line"><a name="l01950"></a><span class="lineno"> 1950</span>  data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]);</div> -<div class="line"><a name="l01951"></a><span class="lineno"> 1951</span>  }</div> -<div class="line"><a name="l01952"></a><span class="lineno"> 1952</span>  }</div> -<div class="line"><a name="l01953"></a><span class="lineno"> 1953</span>  } <span class="keywordflow">while</span> (k < 64);</div> -<div class="line"><a name="l01954"></a><span class="lineno"> 1954</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l01955"></a><span class="lineno"> 1955</span> }</div> -<div class="line"><a name="l01956"></a><span class="lineno"> 1956</span> </div> -<div class="line"><a name="l01957"></a><span class="lineno"> 1957</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, <span class="keywordtype">short</span> data[64], stbi__huffman *hdc, <span class="keywordtype">int</span> b)</div> -<div class="line"><a name="l01958"></a><span class="lineno"> 1958</span> {</div> -<div class="line"><a name="l01959"></a><span class="lineno"> 1959</span>  <span class="keywordtype">int</span> diff,dc;</div> -<div class="line"><a name="l01960"></a><span class="lineno"> 1960</span>  <span class="keywordtype">int</span> t;</div> -<div class="line"><a name="l01961"></a><span class="lineno"> 1961</span>  <span class="keywordflow">if</span> (j->spec_end != 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"can't merge dc and ac"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l01962"></a><span class="lineno"> 1962</span> </div> -<div class="line"><a name="l01963"></a><span class="lineno"> 1963</span>  <span class="keywordflow">if</span> (j->code_bits < 16) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l01964"></a><span class="lineno"> 1964</span> </div> -<div class="line"><a name="l01965"></a><span class="lineno"> 1965</span>  <span class="keywordflow">if</span> (j->succ_high == 0) {</div> -<div class="line"><a name="l01966"></a><span class="lineno"> 1966</span>  <span class="comment">// first scan for DC coefficient, must be first</span></div> -<div class="line"><a name="l01967"></a><span class="lineno"> 1967</span>  memset(data,0,64*<span class="keyword">sizeof</span>(data[0])); <span class="comment">// 0 all the ac values now</span></div> -<div class="line"><a name="l01968"></a><span class="lineno"> 1968</span>  t = stbi__jpeg_huff_decode(j, hdc);</div> -<div class="line"><a name="l01969"></a><span class="lineno"> 1969</span>  diff = t ? stbi__extend_receive(j, t) : 0;</div> -<div class="line"><a name="l01970"></a><span class="lineno"> 1970</span> </div> -<div class="line"><a name="l01971"></a><span class="lineno"> 1971</span>  dc = j->img_comp[b].dc_pred + diff;</div> -<div class="line"><a name="l01972"></a><span class="lineno"> 1972</span>  j->img_comp[b].dc_pred = dc;</div> -<div class="line"><a name="l01973"></a><span class="lineno"> 1973</span>  data[0] = (short) (dc << j->succ_low);</div> -<div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>  <span class="comment">// refinement scan for DC coefficient</span></div> -<div class="line"><a name="l01976"></a><span class="lineno"> 1976</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> -<div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>  data[0] += (<span class="keywordtype">short</span>) (1 << j->succ_low);</div> -<div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>  }</div> -<div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>  <span class="keywordtype">int</span> i, k, n;</div> +<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>  <span class="keywordtype">float</span> *output;</div> +<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>  <span class="keywordflow">if</span> (!data)</div> +<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>  output = (<span class="keywordtype">float</span> *)stbi__malloc_mad4(x, y, comp, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), 0);</div> +<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>  <span class="keywordflow">if</span> (output == NULL) {</div> +<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>  }</div> +<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>  <span class="comment">// compute number of non-alpha components</span></div> +<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>  <span class="keywordflow">if</span> (comp & 1)</div> +<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>  n = comp;</div> +<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>  n = comp - 1;</div> +<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>  <span class="keywordflow">for</span> (i = 0; i < x * y; ++i) {</div> +<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>  <span class="keywordflow">for</span> (k = 0; k < n; ++k) {</div> +<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>  output[i * comp + k] =</div> +<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>  (float)(pow(data[i * comp + k] / 255.0f, stbi__l2h_gamma) *</div> +<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span>  stbi__l2h_scale);</div> +<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>  }</div> +<div class="line"><a name="l01796"></a><span class="lineno"> 1796</span>  <span class="keywordflow">if</span> (k < comp)</div> +<div class="line"><a name="l01797"></a><span class="lineno"> 1797</span>  output[i * comp + k] = data[i * comp + k] / 255.0f;</div> +<div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>  }</div> +<div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01800"></a><span class="lineno"> 1800</span>  <span class="keywordflow">return</span> output;</div> +<div class="line"><a name="l01801"></a><span class="lineno"> 1801</span> }</div> +<div class="line"><a name="l01802"></a><span class="lineno"> 1802</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01803"></a><span class="lineno"> 1803</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01804"></a><span class="lineno"> 1804</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l01805"></a><span class="lineno"> 1805</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__float2int(x) ((int)(x))</span></div> +<div class="line"><a name="l01806"></a><span class="lineno"> 1806</span> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__hdr_to_ldr(<span class="keywordtype">float</span> *data, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> comp)</div> +<div class="line"><a name="l01807"></a><span class="lineno"> 1807</span> {</div> +<div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>  <span class="keywordtype">int</span> i, k, n;</div> +<div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *output;</div> +<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>  <span class="keywordflow">if</span> (!data)</div> +<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>  output = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(x, y, comp, 0);</div> +<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>  <span class="keywordflow">if</span> (output == NULL) {</div> +<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>  }</div> +<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>  <span class="comment">// compute number of non-alpha components</span></div> +<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>  <span class="keywordflow">if</span> (comp & 1)</div> +<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>  n = comp;</div> +<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>  n = comp - 1;</div> +<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>  <span class="keywordflow">for</span> (i = 0; i < x * y; ++i) {</div> +<div class="line"><a name="l01823"></a><span class="lineno"> 1823</span>  <span class="keywordflow">for</span> (k = 0; k < n; ++k) {</div> +<div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>  <span class="keywordtype">float</span> z = (float)pow(data[i * comp + k] * stbi__h2l_scale_i,</div> +<div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>  stbi__h2l_gamma_i) *</div> +<div class="line"><a name="l01826"></a><span class="lineno"> 1826</span>  255 +</div> +<div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>  0.5f;</div> +<div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>  <span class="keywordflow">if</span> (z < 0)</div> +<div class="line"><a name="l01829"></a><span class="lineno"> 1829</span>  z = 0;</div> +<div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>  <span class="keywordflow">if</span> (z > 255)</div> +<div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>  z = 255;</div> +<div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>  output[i * comp + k] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)stbi__float2int(z);</div> +<div class="line"><a name="l01833"></a><span class="lineno"> 1833</span>  }</div> +<div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>  <span class="keywordflow">if</span> (k < comp) {</div> +<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>  <span class="keywordtype">float</span> z = data[i * comp + k] * 255 + 0.5f;</div> +<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>  <span class="keywordflow">if</span> (z < 0)</div> +<div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>  z = 0;</div> +<div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>  <span class="keywordflow">if</span> (z > 255)</div> +<div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>  z = 255;</div> +<div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>  output[i * comp + k] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)stbi__float2int(z);</div> +<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>  }</div> +<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>  }</div> +<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>  STBI_FREE(data);</div> +<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>  <span class="keywordflow">return</span> output;</div> +<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span> }</div> +<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>  <span class="comment">//</span></div> +<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>  <span class="comment">// "baseline" JPEG/JFIF decoder</span></div> +<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>  <span class="comment">//</span></div> +<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>  <span class="comment">// simple implementation</span></div> +<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>  <span class="comment">// - doesn't support delayed output of y-dimension</span></div> +<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>  <span class="comment">// - simple interface (only one output format: 8-bit interleaved RGB)</span></div> +<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>  <span class="comment">// - doesn't try to recover corrupt jpegs</span></div> +<div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>  <span class="comment">// - doesn't allow partial loading, loading multiple at once</span></div> +<div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>  <span class="comment">// - still fast on x86 (copying globals into locals doesn't help x86)</span></div> +<div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>  <span class="comment">// - allocates lots of intermediate memory (full size of all</span></div> +<div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>  <span class="comment">// components)</span></div> +<div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>  <span class="comment">// - non-interleaved case requires this anyway</span></div> +<div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>  <span class="comment">// - allows good upsampling (see next)</span></div> +<div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>  <span class="comment">// high-quality</span></div> +<div class="line"><a name="l01863"></a><span class="lineno"> 1863</span>  <span class="comment">// - upsampled channels are bilinearly interpolated, even across blocks</span></div> +<div class="line"><a name="l01864"></a><span class="lineno"> 1864</span>  <span class="comment">// - quality integer IDCT derived from IJG's 'slow'</span></div> +<div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>  <span class="comment">// performance</span></div> +<div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>  <span class="comment">// - fast huffman; reasonable integer IDCT</span></div> +<div class="line"><a name="l01867"></a><span class="lineno"> 1867</span>  <span class="comment">// - some SIMD kernels for common paths on targets with SSE2/NEON</span></div> +<div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>  <span class="comment">// - uses a lot of intermediate memory, could cache poorly</span></div> +<div class="line"><a name="l01869"></a><span class="lineno"> 1869</span> </div> +<div class="line"><a name="l01870"></a><span class="lineno"> 1870</span> <span class="preprocessor">#ifndef STBI_NO_JPEG</span></div> +<div class="line"><a name="l01871"></a><span class="lineno"> 1871</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01872"></a><span class="lineno"> 1872</span> <span class="comment">// huffman decoding acceleration</span></div> +<div class="line"><a name="l01873"></a><span class="lineno"> 1873</span> <span class="preprocessor">#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache</span></div> +<div class="line"><a name="l01874"></a><span class="lineno"> 1874</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l01875"></a><span class="lineno"> 1875</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l01876"></a><span class="lineno"> 1876</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> fast[1 << FAST_BITS];</div> +<div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>  <span class="comment">// weirdly, repacking this into AoS is a 10% speed loss, instead of a win</span></div> +<div class="line"><a name="l01878"></a><span class="lineno"> 1878</span>  stbi__uint16 code[256];</div> +<div class="line"><a name="l01879"></a><span class="lineno"> 1879</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> values[256];</div> +<div class="line"><a name="l01880"></a><span class="lineno"> 1880</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> size[257];</div> +<div class="line"><a name="l01881"></a><span class="lineno"> 1881</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> maxcode[18];</div> +<div class="line"><a name="l01882"></a><span class="lineno"> 1882</span>  <span class="keywordtype">int</span> delta[17]; <span class="comment">// old 'firstsymbol' - old 'firstcode'</span></div> +<div class="line"><a name="l01883"></a><span class="lineno"> 1883</span> } stbi__huffman;</div> +<div class="line"><a name="l01884"></a><span class="lineno"> 1884</span> </div> +<div class="line"><a name="l01885"></a><span class="lineno"> 1885</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l01886"></a><span class="lineno"> 1886</span>  stbi__context *s;</div> +<div class="line"><a name="l01887"></a><span class="lineno"> 1887</span>  stbi__huffman huff_dc[4];</div> +<div class="line"><a name="l01888"></a><span class="lineno"> 1888</span>  stbi__huffman huff_ac[4];</div> +<div class="line"><a name="l01889"></a><span class="lineno"> 1889</span>  stbi__uint16 dequant[4][64];</div> +<div class="line"><a name="l01890"></a><span class="lineno"> 1890</span>  stbi__int16 fast_ac[4][1 << FAST_BITS];</div> +<div class="line"><a name="l01891"></a><span class="lineno"> 1891</span> </div> +<div class="line"><a name="l01892"></a><span class="lineno"> 1892</span>  <span class="comment">// sizes for components, interleaved MCUs</span></div> +<div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>  <span class="keywordtype">int</span> img_h_max, img_v_max;</div> +<div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>  <span class="keywordtype">int</span> img_mcu_x, img_mcu_y;</div> +<div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>  <span class="keywordtype">int</span> img_mcu_w, img_mcu_h;</div> +<div class="line"><a name="l01896"></a><span class="lineno"> 1896</span> </div> +<div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>  <span class="comment">// definition of jpeg image component</span></div> +<div class="line"><a name="l01898"></a><span class="lineno"> 1898</span>  <span class="keyword">struct </span>{</div> +<div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>  <span class="keywordtype">int</span> id;</div> +<div class="line"><a name="l01900"></a><span class="lineno"> 1900</span>  <span class="keywordtype">int</span> h, v;</div> +<div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>  <span class="keywordtype">int</span> tq;</div> +<div class="line"><a name="l01902"></a><span class="lineno"> 1902</span>  <span class="keywordtype">int</span> hd, ha;</div> +<div class="line"><a name="l01903"></a><span class="lineno"> 1903</span>  <span class="keywordtype">int</span> dc_pred;</div> +<div class="line"><a name="l01904"></a><span class="lineno"> 1904</span> </div> +<div class="line"><a name="l01905"></a><span class="lineno"> 1905</span>  <span class="keywordtype">int</span> x, y, w2, h2;</div> +<div class="line"><a name="l01906"></a><span class="lineno"> 1906</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *data;</div> +<div class="line"><a name="l01907"></a><span class="lineno"> 1907</span>  <span class="keywordtype">void</span> *raw_data, *raw_coeff;</div> +<div class="line"><a name="l01908"></a><span class="lineno"> 1908</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *linebuf;</div> +<div class="line"><a name="l01909"></a><span class="lineno"> 1909</span>  <span class="keywordtype">short</span> *coeff; <span class="comment">// progressive only</span></div> +<div class="line"><a name="l01910"></a><span class="lineno"> 1910</span>  <span class="keywordtype">int</span> coeff_w, coeff_h; <span class="comment">// number of 8x8 coefficient blocks</span></div> +<div class="line"><a name="l01911"></a><span class="lineno"> 1911</span>  } img_comp[4];</div> +<div class="line"><a name="l01912"></a><span class="lineno"> 1912</span> </div> +<div class="line"><a name="l01913"></a><span class="lineno"> 1913</span>  stbi__uint32 code_buffer; <span class="comment">// jpeg entropy-coded buffer</span></div> +<div class="line"><a name="l01914"></a><span class="lineno"> 1914</span>  <span class="keywordtype">int</span> code_bits; <span class="comment">// number of valid bits</span></div> +<div class="line"><a name="l01915"></a><span class="lineno"> 1915</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> marker; <span class="comment">// marker seen while filling entropy buffer</span></div> +<div class="line"><a name="l01916"></a><span class="lineno"> 1916</span>  <span class="keywordtype">int</span> nomore; <span class="comment">// flag if we saw a marker so must stop</span></div> +<div class="line"><a name="l01917"></a><span class="lineno"> 1917</span> </div> +<div class="line"><a name="l01918"></a><span class="lineno"> 1918</span>  <span class="keywordtype">int</span> progressive;</div> +<div class="line"><a name="l01919"></a><span class="lineno"> 1919</span>  <span class="keywordtype">int</span> spec_start;</div> +<div class="line"><a name="l01920"></a><span class="lineno"> 1920</span>  <span class="keywordtype">int</span> spec_end;</div> +<div class="line"><a name="l01921"></a><span class="lineno"> 1921</span>  <span class="keywordtype">int</span> succ_high;</div> +<div class="line"><a name="l01922"></a><span class="lineno"> 1922</span>  <span class="keywordtype">int</span> succ_low;</div> +<div class="line"><a name="l01923"></a><span class="lineno"> 1923</span>  <span class="keywordtype">int</span> eob_run;</div> +<div class="line"><a name="l01924"></a><span class="lineno"> 1924</span>  <span class="keywordtype">int</span> jfif;</div> +<div class="line"><a name="l01925"></a><span class="lineno"> 1925</span>  <span class="keywordtype">int</span> app14_color_transform; <span class="comment">// Adobe APP14 tag</span></div> +<div class="line"><a name="l01926"></a><span class="lineno"> 1926</span>  <span class="keywordtype">int</span> rgb;</div> +<div class="line"><a name="l01927"></a><span class="lineno"> 1927</span> </div> +<div class="line"><a name="l01928"></a><span class="lineno"> 1928</span>  <span class="keywordtype">int</span> scan_n, order[4];</div> +<div class="line"><a name="l01929"></a><span class="lineno"> 1929</span>  <span class="keywordtype">int</span> restart_interval, todo;</div> +<div class="line"><a name="l01930"></a><span class="lineno"> 1930</span> </div> +<div class="line"><a name="l01931"></a><span class="lineno"> 1931</span>  <span class="comment">// kernels</span></div> +<div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>  void (*idct_block_kernel)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64]);</div> +<div class="line"><a name="l01933"></a><span class="lineno"> 1933</span>  void (*YCbCr_to_RGB_kernel)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y,</div> +<div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>  <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcb, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcr,</div> +<div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>  <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> step);</div> +<div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *(*resample_row_hv_2_kernel)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near,</div> +<div class="line"><a name="l01937"></a><span class="lineno"> 1937</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs);</div> +<div class="line"><a name="l01938"></a><span class="lineno"> 1938</span> } stbi__jpeg;</div> +<div class="line"><a name="l01939"></a><span class="lineno"> 1939</span> </div> +<div class="line"><a name="l01940"></a><span class="lineno"> 1940</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__build_huffman(stbi__huffman *h, <span class="keywordtype">int</span> *count)</div> +<div class="line"><a name="l01941"></a><span class="lineno"> 1941</span> {</div> +<div class="line"><a name="l01942"></a><span class="lineno"> 1942</span>  <span class="keywordtype">int</span> i, j, k = 0, code;</div> +<div class="line"><a name="l01943"></a><span class="lineno"> 1943</span>  <span class="comment">// build size list for each symbol (from JPEG spec)</span></div> +<div class="line"><a name="l01944"></a><span class="lineno"> 1944</span>  <span class="keywordflow">for</span> (i = 0; i < 16; ++i)</div> +<div class="line"><a name="l01945"></a><span class="lineno"> 1945</span>  <span class="keywordflow">for</span> (j = 0; j < count[i]; ++j)</div> +<div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>  h->size[k++] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)(i + 1);</div> +<div class="line"><a name="l01947"></a><span class="lineno"> 1947</span>  h->size[k] = 0;</div> +<div class="line"><a name="l01948"></a><span class="lineno"> 1948</span> </div> +<div class="line"><a name="l01949"></a><span class="lineno"> 1949</span>  <span class="comment">// compute actual symbols (from jpeg spec)</span></div> +<div class="line"><a name="l01950"></a><span class="lineno"> 1950</span>  code = 0;</div> +<div class="line"><a name="l01951"></a><span class="lineno"> 1951</span>  k = 0;</div> +<div class="line"><a name="l01952"></a><span class="lineno"> 1952</span>  <span class="keywordflow">for</span> (j = 1; j <= 16; ++j) {</div> +<div class="line"><a name="l01953"></a><span class="lineno"> 1953</span>  <span class="comment">// compute delta to add to code to compute symbol id</span></div> +<div class="line"><a name="l01954"></a><span class="lineno"> 1954</span>  h->delta[j] = k - code;</div> +<div class="line"><a name="l01955"></a><span class="lineno"> 1955</span>  <span class="keywordflow">if</span> (h->size[k] == j) {</div> +<div class="line"><a name="l01956"></a><span class="lineno"> 1956</span>  <span class="keywordflow">while</span> (h->size[k] == j)</div> +<div class="line"><a name="l01957"></a><span class="lineno"> 1957</span>  h->code[k++] = (stbi__uint16)(code++);</div> +<div class="line"><a name="l01958"></a><span class="lineno"> 1958</span>  <span class="keywordflow">if</span> (code - 1 >= (1 << j))</div> +<div class="line"><a name="l01959"></a><span class="lineno"> 1959</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad code lengths"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l01960"></a><span class="lineno"> 1960</span>  }</div> +<div class="line"><a name="l01961"></a><span class="lineno"> 1961</span>  <span class="comment">// compute largest code + 1 for this size, preshifted as needed later</span></div> +<div class="line"><a name="l01962"></a><span class="lineno"> 1962</span>  h->maxcode[j] = code << (16 - j);</div> +<div class="line"><a name="l01963"></a><span class="lineno"> 1963</span>  code <<= 1;</div> +<div class="line"><a name="l01964"></a><span class="lineno"> 1964</span>  }</div> +<div class="line"><a name="l01965"></a><span class="lineno"> 1965</span>  h->maxcode[j] = 0xffffffff;</div> +<div class="line"><a name="l01966"></a><span class="lineno"> 1966</span> </div> +<div class="line"><a name="l01967"></a><span class="lineno"> 1967</span>  <span class="comment">// build non-spec acceleration table; 255 is flag for not-accelerated</span></div> +<div class="line"><a name="l01968"></a><span class="lineno"> 1968</span>  memset(h->fast, 255, 1 << FAST_BITS);</div> +<div class="line"><a name="l01969"></a><span class="lineno"> 1969</span>  <span class="keywordflow">for</span> (i = 0; i < k; ++i) {</div> +<div class="line"><a name="l01970"></a><span class="lineno"> 1970</span>  <span class="keywordtype">int</span> s = h->size[i];</div> +<div class="line"><a name="l01971"></a><span class="lineno"> 1971</span>  <span class="keywordflow">if</span> (s <= FAST_BITS) {</div> +<div class="line"><a name="l01972"></a><span class="lineno"> 1972</span>  <span class="keywordtype">int</span> c = h->code[i] << (FAST_BITS - s);</div> +<div class="line"><a name="l01973"></a><span class="lineno"> 1973</span>  <span class="keywordtype">int</span> m = 1 << (FAST_BITS - s);</div> +<div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>  <span class="keywordflow">for</span> (j = 0; j < m; ++j) {</div> +<div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>  h->fast[c + j] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)i;</div> +<div class="line"><a name="l01976"></a><span class="lineno"> 1976</span>  }</div> +<div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>  }</div> +<div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>  }</div> +<div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>  <span class="keywordflow">return</span> 1;</div> <div class="line"><a name="l01980"></a><span class="lineno"> 1980</span> }</div> <div class="line"><a name="l01981"></a><span class="lineno"> 1981</span> </div> -<div class="line"><a name="l01982"></a><span class="lineno"> 1982</span> <span class="comment">// @OPTIMIZE: store non-zigzagged during the decode passes,</span></div> -<div class="line"><a name="l01983"></a><span class="lineno"> 1983</span> <span class="comment">// and only de-zigzag when dequantizing</span></div> -<div class="line"><a name="l01984"></a><span class="lineno"> 1984</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, <span class="keywordtype">short</span> data[64], stbi__huffman *hac, stbi__int16 *fac)</div> +<div class="line"><a name="l01982"></a><span class="lineno"> 1982</span> <span class="comment">// build a table that decodes both magnitude and value of small ACs in</span></div> +<div class="line"><a name="l01983"></a><span class="lineno"> 1983</span> <span class="comment">// one go.</span></div> +<div class="line"><a name="l01984"></a><span class="lineno"> 1984</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h)</div> <div class="line"><a name="l01985"></a><span class="lineno"> 1985</span> {</div> -<div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>  <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l01987"></a><span class="lineno"> 1987</span>  <span class="keywordflow">if</span> (j->spec_start == 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"can't merge dc and ac"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l01988"></a><span class="lineno"> 1988</span> </div> -<div class="line"><a name="l01989"></a><span class="lineno"> 1989</span>  <span class="keywordflow">if</span> (j->succ_high == 0) {</div> -<div class="line"><a name="l01990"></a><span class="lineno"> 1990</span>  <span class="keywordtype">int</span> shift = j->succ_low;</div> -<div class="line"><a name="l01991"></a><span class="lineno"> 1991</span> </div> -<div class="line"><a name="l01992"></a><span class="lineno"> 1992</span>  <span class="keywordflow">if</span> (j->eob_run) {</div> -<div class="line"><a name="l01993"></a><span class="lineno"> 1993</span>  --j->eob_run;</div> -<div class="line"><a name="l01994"></a><span class="lineno"> 1994</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l01995"></a><span class="lineno"> 1995</span>  }</div> -<div class="line"><a name="l01996"></a><span class="lineno"> 1996</span> </div> -<div class="line"><a name="l01997"></a><span class="lineno"> 1997</span>  k = j->spec_start;</div> -<div class="line"><a name="l01998"></a><span class="lineno"> 1998</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l01999"></a><span class="lineno"> 1999</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> zig;</div> -<div class="line"><a name="l02000"></a><span class="lineno"> 2000</span>  <span class="keywordtype">int</span> c,r,s;</div> -<div class="line"><a name="l02001"></a><span class="lineno"> 2001</span>  <span class="keywordflow">if</span> (j->code_bits < 16) stbi__grow_buffer_unsafe(j);</div> -<div class="line"><a name="l02002"></a><span class="lineno"> 2002</span>  c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);</div> -<div class="line"><a name="l02003"></a><span class="lineno"> 2003</span>  r = fac[c];</div> -<div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>  <span class="keywordflow">if</span> (r) { <span class="comment">// fast-AC path</span></div> -<div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>  k += (r >> 4) & 15; <span class="comment">// run</span></div> -<div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>  s = r & 15; <span class="comment">// combined length</span></div> -<div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>  j->code_buffer <<= s;</div> -<div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>  j->code_bits -= s;</div> -<div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>  zig = stbi__jpeg_dezigzag[k++];</div> -<div class="line"><a name="l02010"></a><span class="lineno"> 2010</span>  data[zig] = (short) ((r >> 8) << shift);</div> -<div class="line"><a name="l02011"></a><span class="lineno"> 2011</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02012"></a><span class="lineno"> 2012</span>  <span class="keywordtype">int</span> rs = stbi__jpeg_huff_decode(j, hac);</div> -<div class="line"><a name="l02013"></a><span class="lineno"> 2013</span>  <span class="keywordflow">if</span> (rs < 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>  s = rs & 15;</div> -<div class="line"><a name="l02015"></a><span class="lineno"> 2015</span>  r = rs >> 4;</div> -<div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>  <span class="keywordflow">if</span> (s == 0) {</div> -<div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>  <span class="keywordflow">if</span> (r < 15) {</div> -<div class="line"><a name="l02018"></a><span class="lineno"> 2018</span>  j->eob_run = (1 << r);</div> -<div class="line"><a name="l02019"></a><span class="lineno"> 2019</span>  <span class="keywordflow">if</span> (r)</div> -<div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>  j->eob_run += stbi__jpeg_get_bits(j, r);</div> -<div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>  --j->eob_run;</div> -<div class="line"><a name="l02022"></a><span class="lineno"> 2022</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>  }</div> -<div class="line"><a name="l02024"></a><span class="lineno"> 2024</span>  k += 16;</div> -<div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>  k += r;</div> -<div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>  zig = stbi__jpeg_dezigzag[k++];</div> -<div class="line"><a name="l02028"></a><span class="lineno"> 2028</span>  data[zig] = (short) (stbi__extend_receive(j,s) << shift);</div> -<div class="line"><a name="l02029"></a><span class="lineno"> 2029</span>  }</div> -<div class="line"><a name="l02030"></a><span class="lineno"> 2030</span>  }</div> -<div class="line"><a name="l02031"></a><span class="lineno"> 2031</span>  } <span class="keywordflow">while</span> (k <= j->spec_end);</div> -<div class="line"><a name="l02032"></a><span class="lineno"> 2032</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>  <span class="comment">// refinement scan for these AC coefficients</span></div> -<div class="line"><a name="l02034"></a><span class="lineno"> 2034</span> </div> -<div class="line"><a name="l02035"></a><span class="lineno"> 2035</span>  <span class="keywordtype">short</span> bit = (short) (1 << j->succ_low);</div> -<div class="line"><a name="l02036"></a><span class="lineno"> 2036</span> </div> -<div class="line"><a name="l02037"></a><span class="lineno"> 2037</span>  <span class="keywordflow">if</span> (j->eob_run) {</div> -<div class="line"><a name="l02038"></a><span class="lineno"> 2038</span>  --j->eob_run;</div> -<div class="line"><a name="l02039"></a><span class="lineno"> 2039</span>  <span class="keywordflow">for</span> (k = j->spec_start; k <= j->spec_end; ++k) {</div> -<div class="line"><a name="l02040"></a><span class="lineno"> 2040</span>  <span class="keywordtype">short</span> *p = &data[stbi__jpeg_dezigzag[k]];</div> -<div class="line"><a name="l02041"></a><span class="lineno"> 2041</span>  <span class="keywordflow">if</span> (*p != 0)</div> -<div class="line"><a name="l02042"></a><span class="lineno"> 2042</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> -<div class="line"><a name="l02043"></a><span class="lineno"> 2043</span>  <span class="keywordflow">if</span> ((*p & bit)==0) {</div> -<div class="line"><a name="l02044"></a><span class="lineno"> 2044</span>  <span class="keywordflow">if</span> (*p > 0)</div> -<div class="line"><a name="l02045"></a><span class="lineno"> 2045</span>  *p += bit;</div> -<div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>  *p -= bit;</div> -<div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>  }</div> -<div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>  }</div> -<div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02051"></a><span class="lineno"> 2051</span>  k = j->spec_start;</div> -<div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l02053"></a><span class="lineno"> 2053</span>  <span class="keywordtype">int</span> r,s;</div> -<div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>  <span class="keywordtype">int</span> rs = stbi__jpeg_huff_decode(j, hac); <span class="comment">// @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh</span></div> -<div class="line"><a name="l02055"></a><span class="lineno"> 2055</span>  <span class="keywordflow">if</span> (rs < 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>  s = rs & 15;</div> -<div class="line"><a name="l02057"></a><span class="lineno"> 2057</span>  r = rs >> 4;</div> -<div class="line"><a name="l02058"></a><span class="lineno"> 2058</span>  <span class="keywordflow">if</span> (s == 0) {</div> -<div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>  <span class="keywordflow">if</span> (r < 15) {</div> -<div class="line"><a name="l02060"></a><span class="lineno"> 2060</span>  j->eob_run = (1 << r) - 1;</div> -<div class="line"><a name="l02061"></a><span class="lineno"> 2061</span>  <span class="keywordflow">if</span> (r)</div> -<div class="line"><a name="l02062"></a><span class="lineno"> 2062</span>  j->eob_run += stbi__jpeg_get_bits(j, r);</div> -<div class="line"><a name="l02063"></a><span class="lineno"> 2063</span>  r = 64; <span class="comment">// force end of block</span></div> -<div class="line"><a name="l02064"></a><span class="lineno"> 2064</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>  <span class="comment">// r=15 s=0 should write 16 0s, so we just do</span></div> -<div class="line"><a name="l02066"></a><span class="lineno"> 2066</span>  <span class="comment">// a run of 15 0s and then write s (which is 0),</span></div> -<div class="line"><a name="l02067"></a><span class="lineno"> 2067</span>  <span class="comment">// so we don't have to do anything special here</span></div> -<div class="line"><a name="l02068"></a><span class="lineno"> 2068</span>  }</div> -<div class="line"><a name="l02069"></a><span class="lineno"> 2069</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02070"></a><span class="lineno"> 2070</span>  <span class="keywordflow">if</span> (s != 1) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02071"></a><span class="lineno"> 2071</span>  <span class="comment">// sign bit</span></div> -<div class="line"><a name="l02072"></a><span class="lineno"> 2072</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> -<div class="line"><a name="l02073"></a><span class="lineno"> 2073</span>  s = bit;</div> -<div class="line"><a name="l02074"></a><span class="lineno"> 2074</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l02075"></a><span class="lineno"> 2075</span>  s = -bit;</div> -<div class="line"><a name="l02076"></a><span class="lineno"> 2076</span>  }</div> -<div class="line"><a name="l02077"></a><span class="lineno"> 2077</span> </div> -<div class="line"><a name="l02078"></a><span class="lineno"> 2078</span>  <span class="comment">// advance by r</span></div> -<div class="line"><a name="l02079"></a><span class="lineno"> 2079</span>  <span class="keywordflow">while</span> (k <= j->spec_end) {</div> -<div class="line"><a name="l02080"></a><span class="lineno"> 2080</span>  <span class="keywordtype">short</span> *p = &data[stbi__jpeg_dezigzag[k++]];</div> -<div class="line"><a name="l02081"></a><span class="lineno"> 2081</span>  <span class="keywordflow">if</span> (*p != 0) {</div> -<div class="line"><a name="l02082"></a><span class="lineno"> 2082</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> -<div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>  <span class="keywordflow">if</span> ((*p & bit)==0) {</div> -<div class="line"><a name="l02084"></a><span class="lineno"> 2084</span>  <span class="keywordflow">if</span> (*p > 0)</div> -<div class="line"><a name="l02085"></a><span class="lineno"> 2085</span>  *p += bit;</div> -<div class="line"><a name="l02086"></a><span class="lineno"> 2086</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l02087"></a><span class="lineno"> 2087</span>  *p -= bit;</div> -<div class="line"><a name="l02088"></a><span class="lineno"> 2088</span>  }</div> -<div class="line"><a name="l02089"></a><span class="lineno"> 2089</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02090"></a><span class="lineno"> 2090</span>  <span class="keywordflow">if</span> (r == 0) {</div> -<div class="line"><a name="l02091"></a><span class="lineno"> 2091</span>  *p = (short) s;</div> -<div class="line"><a name="l02092"></a><span class="lineno"> 2092</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l02093"></a><span class="lineno"> 2093</span>  }</div> -<div class="line"><a name="l02094"></a><span class="lineno"> 2094</span>  --r;</div> -<div class="line"><a name="l02095"></a><span class="lineno"> 2095</span>  }</div> -<div class="line"><a name="l02096"></a><span class="lineno"> 2096</span>  }</div> -<div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>  } <span class="keywordflow">while</span> (k <= j->spec_end);</div> -<div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>  }</div> -<div class="line"><a name="l02099"></a><span class="lineno"> 2099</span>  }</div> -<div class="line"><a name="l02100"></a><span class="lineno"> 2100</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02101"></a><span class="lineno"> 2101</span> }</div> -<div class="line"><a name="l02102"></a><span class="lineno"> 2102</span> </div> -<div class="line"><a name="l02103"></a><span class="lineno"> 2103</span> <span class="comment">// take a -128..127 value and stbi__clamp it and convert to 0..255</span></div> -<div class="line"><a name="l02104"></a><span class="lineno"> 2104</span> stbi_inline <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__clamp(<span class="keywordtype">int</span> x)</div> -<div class="line"><a name="l02105"></a><span class="lineno"> 2105</span> {</div> -<div class="line"><a name="l02106"></a><span class="lineno"> 2106</span>  <span class="comment">// trick to use a single test to catch both cases</span></div> -<div class="line"><a name="l02107"></a><span class="lineno"> 2107</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) x > 255) {</div> -<div class="line"><a name="l02108"></a><span class="lineno"> 2108</span>  <span class="keywordflow">if</span> (x < 0) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02109"></a><span class="lineno"> 2109</span>  <span class="keywordflow">if</span> (x > 255) <span class="keywordflow">return</span> 255;</div> -<div class="line"><a name="l02110"></a><span class="lineno"> 2110</span>  }</div> -<div class="line"><a name="l02111"></a><span class="lineno"> 2111</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) x;</div> -<div class="line"><a name="l02112"></a><span class="lineno"> 2112</span> }</div> -<div class="line"><a name="l02113"></a><span class="lineno"> 2113</span> </div> -<div class="line"><a name="l02114"></a><span class="lineno"> 2114</span> <span class="preprocessor">#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5)))</span></div> -<div class="line"><a name="l02115"></a><span class="lineno"> 2115</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__fsh(x) ((x) << 12)</span></div> -<div class="line"><a name="l02116"></a><span class="lineno"> 2116</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02117"></a><span class="lineno"> 2117</span> <span class="comment">// derived from jidctint -- DCT_ISLOW</span></div> -<div class="line"><a name="l02118"></a><span class="lineno"> 2118</span> <span class="preprocessor">#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \</span></div> -<div class="line"><a name="l02119"></a><span class="lineno"> 2119</span> <span class="preprocessor"> int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \</span></div> -<div class="line"><a name="l02120"></a><span class="lineno"> 2120</span> <span class="preprocessor"> p2 = s2; \</span></div> -<div class="line"><a name="l02121"></a><span class="lineno"> 2121</span> <span class="preprocessor"> p3 = s6; \</span></div> -<div class="line"><a name="l02122"></a><span class="lineno"> 2122</span> <span class="preprocessor"> p1 = (p2+p3) * stbi__f2f(0.5411961f); \</span></div> -<div class="line"><a name="l02123"></a><span class="lineno"> 2123</span> <span class="preprocessor"> t2 = p1 + p3*stbi__f2f(-1.847759065f); \</span></div> -<div class="line"><a name="l02124"></a><span class="lineno"> 2124</span> <span class="preprocessor"> t3 = p1 + p2*stbi__f2f( 0.765366865f); \</span></div> -<div class="line"><a name="l02125"></a><span class="lineno"> 2125</span> <span class="preprocessor"> p2 = s0; \</span></div> -<div class="line"><a name="l02126"></a><span class="lineno"> 2126</span> <span class="preprocessor"> p3 = s4; \</span></div> -<div class="line"><a name="l02127"></a><span class="lineno"> 2127</span> <span class="preprocessor"> t0 = stbi__fsh(p2+p3); \</span></div> -<div class="line"><a name="l02128"></a><span class="lineno"> 2128</span> <span class="preprocessor"> t1 = stbi__fsh(p2-p3); \</span></div> -<div class="line"><a name="l02129"></a><span class="lineno"> 2129</span> <span class="preprocessor"> x0 = t0+t3; \</span></div> -<div class="line"><a name="l02130"></a><span class="lineno"> 2130</span> <span class="preprocessor"> x3 = t0-t3; \</span></div> -<div class="line"><a name="l02131"></a><span class="lineno"> 2131</span> <span class="preprocessor"> x1 = t1+t2; \</span></div> -<div class="line"><a name="l02132"></a><span class="lineno"> 2132</span> <span class="preprocessor"> x2 = t1-t2; \</span></div> -<div class="line"><a name="l02133"></a><span class="lineno"> 2133</span> <span class="preprocessor"> t0 = s7; \</span></div> -<div class="line"><a name="l02134"></a><span class="lineno"> 2134</span> <span class="preprocessor"> t1 = s5; \</span></div> -<div class="line"><a name="l02135"></a><span class="lineno"> 2135</span> <span class="preprocessor"> t2 = s3; \</span></div> -<div class="line"><a name="l02136"></a><span class="lineno"> 2136</span> <span class="preprocessor"> t3 = s1; \</span></div> -<div class="line"><a name="l02137"></a><span class="lineno"> 2137</span> <span class="preprocessor"> p3 = t0+t2; \</span></div> -<div class="line"><a name="l02138"></a><span class="lineno"> 2138</span> <span class="preprocessor"> p4 = t1+t3; \</span></div> -<div class="line"><a name="l02139"></a><span class="lineno"> 2139</span> <span class="preprocessor"> p1 = t0+t3; \</span></div> -<div class="line"><a name="l02140"></a><span class="lineno"> 2140</span> <span class="preprocessor"> p2 = t1+t2; \</span></div> -<div class="line"><a name="l02141"></a><span class="lineno"> 2141</span> <span class="preprocessor"> p5 = (p3+p4)*stbi__f2f( 1.175875602f); \</span></div> -<div class="line"><a name="l02142"></a><span class="lineno"> 2142</span> <span class="preprocessor"> t0 = t0*stbi__f2f( 0.298631336f); \</span></div> -<div class="line"><a name="l02143"></a><span class="lineno"> 2143</span> <span class="preprocessor"> t1 = t1*stbi__f2f( 2.053119869f); \</span></div> -<div class="line"><a name="l02144"></a><span class="lineno"> 2144</span> <span class="preprocessor"> t2 = t2*stbi__f2f( 3.072711026f); \</span></div> -<div class="line"><a name="l02145"></a><span class="lineno"> 2145</span> <span class="preprocessor"> t3 = t3*stbi__f2f( 1.501321110f); \</span></div> -<div class="line"><a name="l02146"></a><span class="lineno"> 2146</span> <span class="preprocessor"> p1 = p5 + p1*stbi__f2f(-0.899976223f); \</span></div> -<div class="line"><a name="l02147"></a><span class="lineno"> 2147</span> <span class="preprocessor"> p2 = p5 + p2*stbi__f2f(-2.562915447f); \</span></div> -<div class="line"><a name="l02148"></a><span class="lineno"> 2148</span> <span class="preprocessor"> p3 = p3*stbi__f2f(-1.961570560f); \</span></div> -<div class="line"><a name="l02149"></a><span class="lineno"> 2149</span> <span class="preprocessor"> p4 = p4*stbi__f2f(-0.390180644f); \</span></div> -<div class="line"><a name="l02150"></a><span class="lineno"> 2150</span> <span class="preprocessor"> t3 += p1+p4; \</span></div> -<div class="line"><a name="l02151"></a><span class="lineno"> 2151</span> <span class="preprocessor"> t2 += p2+p3; \</span></div> -<div class="line"><a name="l02152"></a><span class="lineno"> 2152</span> <span class="preprocessor"> t1 += p2+p4; \</span></div> -<div class="line"><a name="l02153"></a><span class="lineno"> 2153</span> <span class="preprocessor"> t0 += p1+p3;</span></div> -<div class="line"><a name="l02154"></a><span class="lineno"> 2154</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02155"></a><span class="lineno"> 2155</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__idct_block(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64])</div> -<div class="line"><a name="l02156"></a><span class="lineno"> 2156</span> {</div> -<div class="line"><a name="l02157"></a><span class="lineno"> 2157</span>  <span class="keywordtype">int</span> i,val[64],*v=val;</div> -<div class="line"><a name="l02158"></a><span class="lineno"> 2158</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *o;</div> -<div class="line"><a name="l02159"></a><span class="lineno"> 2159</span>  <span class="keywordtype">short</span> *d = data;</div> +<div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l01987"></a><span class="lineno"> 1987</span>  <span class="keywordflow">for</span> (i = 0; i < (1 << FAST_BITS); ++i) {</div> +<div class="line"><a name="l01988"></a><span class="lineno"> 1988</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> fast = h->fast[i];</div> +<div class="line"><a name="l01989"></a><span class="lineno"> 1989</span>  fast_ac[i] = 0;</div> +<div class="line"><a name="l01990"></a><span class="lineno"> 1990</span>  <span class="keywordflow">if</span> (fast < 255) {</div> +<div class="line"><a name="l01991"></a><span class="lineno"> 1991</span>  <span class="keywordtype">int</span> rs = h->values[fast];</div> +<div class="line"><a name="l01992"></a><span class="lineno"> 1992</span>  <span class="keywordtype">int</span> run = (rs >> 4) & 15;</div> +<div class="line"><a name="l01993"></a><span class="lineno"> 1993</span>  <span class="keywordtype">int</span> magbits = rs & 15;</div> +<div class="line"><a name="l01994"></a><span class="lineno"> 1994</span>  <span class="keywordtype">int</span> len = h->size[fast];</div> +<div class="line"><a name="l01995"></a><span class="lineno"> 1995</span> </div> +<div class="line"><a name="l01996"></a><span class="lineno"> 1996</span>  <span class="keywordflow">if</span> (magbits && len + magbits <= FAST_BITS) {</div> +<div class="line"><a name="l01997"></a><span class="lineno"> 1997</span>  <span class="comment">// magnitude code followed by receive_extend code</span></div> +<div class="line"><a name="l01998"></a><span class="lineno"> 1998</span>  <span class="keywordtype">int</span> k = ((i << len) & ((1 << FAST_BITS) - 1)) >></div> +<div class="line"><a name="l01999"></a><span class="lineno"> 1999</span>  (FAST_BITS - magbits);</div> +<div class="line"><a name="l02000"></a><span class="lineno"> 2000</span>  <span class="keywordtype">int</span> m = 1 << (magbits - 1);</div> +<div class="line"><a name="l02001"></a><span class="lineno"> 2001</span>  <span class="keywordflow">if</span> (k < m)</div> +<div class="line"><a name="l02002"></a><span class="lineno"> 2002</span>  k += (~0<a class="code" href="namespaceyage.html#ad5a9307442e5daa8810aff942564a822a4c614360da93c0a041b22e537de151eb">U</a> << magbits) + 1;</div> +<div class="line"><a name="l02003"></a><span class="lineno"> 2003</span>  <span class="comment">// if the result is small enough, we can fit it in fast_ac table</span></div> +<div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>  <span class="keywordflow">if</span> (k >= -128 && k <= 127)</div> +<div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>  fast_ac[i] =</div> +<div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>  (stbi__int16)((k << 8) + (run << 4) + (len + magbits));</div> +<div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>  }</div> +<div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>  }</div> +<div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>  }</div> +<div class="line"><a name="l02010"></a><span class="lineno"> 2010</span> }</div> +<div class="line"><a name="l02011"></a><span class="lineno"> 2011</span> </div> +<div class="line"><a name="l02012"></a><span class="lineno"> 2012</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__grow_buffer_unsafe(stbi__jpeg *j)</div> +<div class="line"><a name="l02013"></a><span class="lineno"> 2013</span> {</div> +<div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l02015"></a><span class="lineno"> 2015</span>  <span class="keywordtype">int</span> b = j->nomore ? 0 : stbi__get8(j->s);</div> +<div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>  <span class="keywordflow">if</span> (b == 0xff) {</div> +<div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>  <span class="keywordtype">int</span> c = stbi__get8(j->s);</div> +<div class="line"><a name="l02018"></a><span class="lineno"> 2018</span>  <span class="keywordflow">while</span> (c == 0xff)</div> +<div class="line"><a name="l02019"></a><span class="lineno"> 2019</span>  c = stbi__get8(j->s); <span class="comment">// consume fill bytes</span></div> +<div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>  <span class="keywordflow">if</span> (c != 0) {</div> +<div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>  j->marker = (<span class="keywordtype">unsigned</span> char)c;</div> +<div class="line"><a name="l02022"></a><span class="lineno"> 2022</span>  j->nomore = 1;</div> +<div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>  <span class="keywordflow">return</span>;</div> +<div class="line"><a name="l02024"></a><span class="lineno"> 2024</span>  }</div> +<div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>  }</div> +<div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>  j->code_buffer |= b << (24 - j->code_bits);</div> +<div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>  j->code_bits += 8;</div> +<div class="line"><a name="l02028"></a><span class="lineno"> 2028</span>  } <span class="keywordflow">while</span> (j->code_bits <= 24);</div> +<div class="line"><a name="l02029"></a><span class="lineno"> 2029</span> }</div> +<div class="line"><a name="l02030"></a><span class="lineno"> 2030</span> </div> +<div class="line"><a name="l02031"></a><span class="lineno"> 2031</span> <span class="comment">// (1 << n) - 1</span></div> +<div class="line"><a name="l02032"></a><span class="lineno"> 2032</span> <span class="keyword">static</span> stbi__uint32 stbi__bmask[17] = {0, 1, 3, 7, 15, 31,</div> +<div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>  63, 127, 255, 511, 1023, 2047,</div> +<div class="line"><a name="l02034"></a><span class="lineno"> 2034</span>  4095, 8191, 16383, 32767, 65535};</div> +<div class="line"><a name="l02035"></a><span class="lineno"> 2035</span> </div> +<div class="line"><a name="l02036"></a><span class="lineno"> 2036</span> <span class="comment">// decode a jpeg huffman value from the bitstream</span></div> +<div class="line"><a name="l02037"></a><span class="lineno"> 2037</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h)</div> +<div class="line"><a name="l02038"></a><span class="lineno"> 2038</span> {</div> +<div class="line"><a name="l02039"></a><span class="lineno"> 2039</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> temp;</div> +<div class="line"><a name="l02040"></a><span class="lineno"> 2040</span>  <span class="keywordtype">int</span> c, k;</div> +<div class="line"><a name="l02041"></a><span class="lineno"> 2041</span> </div> +<div class="line"><a name="l02042"></a><span class="lineno"> 2042</span>  <span class="keywordflow">if</span> (j->code_bits < 16)</div> +<div class="line"><a name="l02043"></a><span class="lineno"> 2043</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02044"></a><span class="lineno"> 2044</span> </div> +<div class="line"><a name="l02045"></a><span class="lineno"> 2045</span>  <span class="comment">// look at the top FAST_BITS and determine what symbol ID it is,</span></div> +<div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>  <span class="comment">// if the code is <= FAST_BITS</span></div> +<div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>  c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS) - 1);</div> +<div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>  k = h->fast[c];</div> +<div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>  <span class="keywordflow">if</span> (k < 255) {</div> +<div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>  <span class="keywordtype">int</span> s = h->size[k];</div> +<div class="line"><a name="l02051"></a><span class="lineno"> 2051</span>  <span class="keywordflow">if</span> (s > j->code_bits)</div> +<div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l02053"></a><span class="lineno"> 2053</span>  j->code_buffer <<= s;</div> +<div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>  j->code_bits -= s;</div> +<div class="line"><a name="l02055"></a><span class="lineno"> 2055</span>  <span class="keywordflow">return</span> h->values[k];</div> +<div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>  }</div> +<div class="line"><a name="l02057"></a><span class="lineno"> 2057</span> </div> +<div class="line"><a name="l02058"></a><span class="lineno"> 2058</span>  <span class="comment">// naive test is to shift the code_buffer down so k bits are</span></div> +<div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>  <span class="comment">// valid, then test against maxcode. To speed this up, we've</span></div> +<div class="line"><a name="l02060"></a><span class="lineno"> 2060</span>  <span class="comment">// preshifted maxcode left so that it has (16-k) 0s at the</span></div> +<div class="line"><a name="l02061"></a><span class="lineno"> 2061</span>  <span class="comment">// end; in other words, regardless of the number of bits, it</span></div> +<div class="line"><a name="l02062"></a><span class="lineno"> 2062</span>  <span class="comment">// wants to be compared against something shifted to have 16;</span></div> +<div class="line"><a name="l02063"></a><span class="lineno"> 2063</span>  <span class="comment">// that way we don't need to shift inside the loop.</span></div> +<div class="line"><a name="l02064"></a><span class="lineno"> 2064</span>  temp = j->code_buffer >> 16;</div> +<div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>  <span class="keywordflow">for</span> (k = FAST_BITS + 1;; ++k)</div> +<div class="line"><a name="l02066"></a><span class="lineno"> 2066</span>  <span class="keywordflow">if</span> (temp < h->maxcode[k])</div> +<div class="line"><a name="l02067"></a><span class="lineno"> 2067</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l02068"></a><span class="lineno"> 2068</span>  <span class="keywordflow">if</span> (k == 17) {</div> +<div class="line"><a name="l02069"></a><span class="lineno"> 2069</span>  <span class="comment">// error! code not found</span></div> +<div class="line"><a name="l02070"></a><span class="lineno"> 2070</span>  j->code_bits -= 16;</div> +<div class="line"><a name="l02071"></a><span class="lineno"> 2071</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l02072"></a><span class="lineno"> 2072</span>  }</div> +<div class="line"><a name="l02073"></a><span class="lineno"> 2073</span> </div> +<div class="line"><a name="l02074"></a><span class="lineno"> 2074</span>  <span class="keywordflow">if</span> (k > j->code_bits)</div> +<div class="line"><a name="l02075"></a><span class="lineno"> 2075</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l02076"></a><span class="lineno"> 2076</span> </div> +<div class="line"><a name="l02077"></a><span class="lineno"> 2077</span>  <span class="comment">// convert the huffman code to the symbol id</span></div> +<div class="line"><a name="l02078"></a><span class="lineno"> 2078</span>  c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k];</div> +<div class="line"><a name="l02079"></a><span class="lineno"> 2079</span>  STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) &</div> +<div class="line"><a name="l02080"></a><span class="lineno"> 2080</span>  stbi__bmask[h->size[c]]) == h->code[c]);</div> +<div class="line"><a name="l02081"></a><span class="lineno"> 2081</span> </div> +<div class="line"><a name="l02082"></a><span class="lineno"> 2082</span>  <span class="comment">// convert the id to a symbol</span></div> +<div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>  j->code_bits -= k;</div> +<div class="line"><a name="l02084"></a><span class="lineno"> 2084</span>  j->code_buffer <<= k;</div> +<div class="line"><a name="l02085"></a><span class="lineno"> 2085</span>  <span class="keywordflow">return</span> h->values[c];</div> +<div class="line"><a name="l02086"></a><span class="lineno"> 2086</span> }</div> +<div class="line"><a name="l02087"></a><span class="lineno"> 2087</span> </div> +<div class="line"><a name="l02088"></a><span class="lineno"> 2088</span> <span class="comment">// bias[n] = (-1<<n) + 1</span></div> +<div class="line"><a name="l02089"></a><span class="lineno"> 2089</span> <span class="keyword">static</span> <span class="keywordtype">int</span> <span class="keyword">const</span> stbi__jbias[16] = {0, -1, -3, -7, -15, -31,</div> +<div class="line"><a name="l02090"></a><span class="lineno"> 2090</span>  -63, -127, -255, -511, -1023, -2047,</div> +<div class="line"><a name="l02091"></a><span class="lineno"> 2091</span>  -4095, -8191, -16383, -32767};</div> +<div class="line"><a name="l02092"></a><span class="lineno"> 2092</span> </div> +<div class="line"><a name="l02093"></a><span class="lineno"> 2093</span> <span class="comment">// combined JPEG 'receive' and JPEG 'extend', since baseline</span></div> +<div class="line"><a name="l02094"></a><span class="lineno"> 2094</span> <span class="comment">// always extends everything it receives.</span></div> +<div class="line"><a name="l02095"></a><span class="lineno"> 2095</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__extend_receive(stbi__jpeg *j, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l02096"></a><span class="lineno"> 2096</span> {</div> +<div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>  <span class="keywordtype">int</span> sgn;</div> +<div class="line"><a name="l02099"></a><span class="lineno"> 2099</span>  <span class="keywordflow">if</span> (j->code_bits < n)</div> +<div class="line"><a name="l02100"></a><span class="lineno"> 2100</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02101"></a><span class="lineno"> 2101</span> </div> +<div class="line"><a name="l02102"></a><span class="lineno"> 2102</span>  sgn = (stbi__int32)j->code_buffer >> 31; <span class="comment">// sign bit is always in MSB</span></div> +<div class="line"><a name="l02103"></a><span class="lineno"> 2103</span>  k = stbi_lrot(j->code_buffer, n);</div> +<div class="line"><a name="l02104"></a><span class="lineno"> 2104</span>  STBI_ASSERT(n >= 0 &&</div> +<div class="line"><a name="l02105"></a><span class="lineno"> 2105</span>  n < (<span class="keywordtype">int</span>)(<span class="keyword">sizeof</span>(stbi__bmask) / <span class="keyword">sizeof</span>(*stbi__bmask)));</div> +<div class="line"><a name="l02106"></a><span class="lineno"> 2106</span>  j->code_buffer = k & ~stbi__bmask[n];</div> +<div class="line"><a name="l02107"></a><span class="lineno"> 2107</span>  k &= stbi__bmask[n];</div> +<div class="line"><a name="l02108"></a><span class="lineno"> 2108</span>  j->code_bits -= n;</div> +<div class="line"><a name="l02109"></a><span class="lineno"> 2109</span>  <span class="keywordflow">return</span> k + (stbi__jbias[n] & ~sgn);</div> +<div class="line"><a name="l02110"></a><span class="lineno"> 2110</span> }</div> +<div class="line"><a name="l02111"></a><span class="lineno"> 2111</span> </div> +<div class="line"><a name="l02112"></a><span class="lineno"> 2112</span> <span class="comment">// get some unsigned bits</span></div> +<div class="line"><a name="l02113"></a><span class="lineno"> 2113</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_get_bits(stbi__jpeg *j, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l02114"></a><span class="lineno"> 2114</span> {</div> +<div class="line"><a name="l02115"></a><span class="lineno"> 2115</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l02116"></a><span class="lineno"> 2116</span>  <span class="keywordflow">if</span> (j->code_bits < n)</div> +<div class="line"><a name="l02117"></a><span class="lineno"> 2117</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02118"></a><span class="lineno"> 2118</span>  k = stbi_lrot(j->code_buffer, n);</div> +<div class="line"><a name="l02119"></a><span class="lineno"> 2119</span>  j->code_buffer = k & ~stbi__bmask[n];</div> +<div class="line"><a name="l02120"></a><span class="lineno"> 2120</span>  k &= stbi__bmask[n];</div> +<div class="line"><a name="l02121"></a><span class="lineno"> 2121</span>  j->code_bits -= n;</div> +<div class="line"><a name="l02122"></a><span class="lineno"> 2122</span>  <span class="keywordflow">return</span> k;</div> +<div class="line"><a name="l02123"></a><span class="lineno"> 2123</span> }</div> +<div class="line"><a name="l02124"></a><span class="lineno"> 2124</span> </div> +<div class="line"><a name="l02125"></a><span class="lineno"> 2125</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_get_bit(stbi__jpeg *j)</div> +<div class="line"><a name="l02126"></a><span class="lineno"> 2126</span> {</div> +<div class="line"><a name="l02127"></a><span class="lineno"> 2127</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l02128"></a><span class="lineno"> 2128</span>  <span class="keywordflow">if</span> (j->code_bits < 1)</div> +<div class="line"><a name="l02129"></a><span class="lineno"> 2129</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02130"></a><span class="lineno"> 2130</span>  k = j->code_buffer;</div> +<div class="line"><a name="l02131"></a><span class="lineno"> 2131</span>  j->code_buffer <<= 1;</div> +<div class="line"><a name="l02132"></a><span class="lineno"> 2132</span>  --j->code_bits;</div> +<div class="line"><a name="l02133"></a><span class="lineno"> 2133</span>  <span class="keywordflow">return</span> k & 0x80000000;</div> +<div class="line"><a name="l02134"></a><span class="lineno"> 2134</span> }</div> +<div class="line"><a name="l02135"></a><span class="lineno"> 2135</span> </div> +<div class="line"><a name="l02136"></a><span class="lineno"> 2136</span> <span class="comment">// given a value that's at position X in the zigzag stream,</span></div> +<div class="line"><a name="l02137"></a><span class="lineno"> 2137</span> <span class="comment">// where does it appear in the 8x8 matrix coded as row-major?</span></div> +<div class="line"><a name="l02138"></a><span class="lineno"> 2138</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__jpeg_dezigzag[64 + 15] = {</div> +<div class="line"><a name="l02139"></a><span class="lineno"> 2139</span>  0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, 12, 19, 26, 33, 40,</div> +<div class="line"><a name="l02140"></a><span class="lineno"> 2140</span>  48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, 35, 42, 49, 56, 57, 50, 43, 36,</div> +<div class="line"><a name="l02141"></a><span class="lineno"> 2141</span>  29, 22, 15, 23, 30, 37, 44, 51, 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61,</div> +<div class="line"><a name="l02142"></a><span class="lineno"> 2142</span>  54, 47, 55, 62, 63,</div> +<div class="line"><a name="l02143"></a><span class="lineno"> 2143</span>  <span class="comment">// let corrupt input sample past end</span></div> +<div class="line"><a name="l02144"></a><span class="lineno"> 2144</span>  63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63};</div> +<div class="line"><a name="l02145"></a><span class="lineno"> 2145</span> </div> +<div class="line"><a name="l02146"></a><span class="lineno"> 2146</span> <span class="comment">// decode one 64-entry block--</span></div> +<div class="line"><a name="l02147"></a><span class="lineno"> 2147</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_decode_block(stbi__jpeg *j, <span class="keywordtype">short</span> data[64],</div> +<div class="line"><a name="l02148"></a><span class="lineno"> 2148</span>  stbi__huffman *hdc, stbi__huffman *hac,</div> +<div class="line"><a name="l02149"></a><span class="lineno"> 2149</span>  stbi__int16 *fac, <span class="keywordtype">int</span> b,</div> +<div class="line"><a name="l02150"></a><span class="lineno"> 2150</span>  stbi__uint16 *dequant)</div> +<div class="line"><a name="l02151"></a><span class="lineno"> 2151</span> {</div> +<div class="line"><a name="l02152"></a><span class="lineno"> 2152</span>  <span class="keywordtype">int</span> diff, dc, k;</div> +<div class="line"><a name="l02153"></a><span class="lineno"> 2153</span>  <span class="keywordtype">int</span> t;</div> +<div class="line"><a name="l02154"></a><span class="lineno"> 2154</span> </div> +<div class="line"><a name="l02155"></a><span class="lineno"> 2155</span>  <span class="keywordflow">if</span> (j->code_bits < 16)</div> +<div class="line"><a name="l02156"></a><span class="lineno"> 2156</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02157"></a><span class="lineno"> 2157</span>  t = stbi__jpeg_huff_decode(j, hdc);</div> +<div class="line"><a name="l02158"></a><span class="lineno"> 2158</span>  <span class="keywordflow">if</span> (t < 0)</div> +<div class="line"><a name="l02159"></a><span class="lineno"> 2159</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> <div class="line"><a name="l02160"></a><span class="lineno"> 2160</span> </div> -<div class="line"><a name="l02161"></a><span class="lineno"> 2161</span>  <span class="comment">// columns</span></div> -<div class="line"><a name="l02162"></a><span class="lineno"> 2162</span>  <span class="keywordflow">for</span> (i=0; i < 8; ++i,++d, ++v) {</div> -<div class="line"><a name="l02163"></a><span class="lineno"> 2163</span>  <span class="comment">// if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing</span></div> -<div class="line"><a name="l02164"></a><span class="lineno"> 2164</span>  <span class="keywordflow">if</span> (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0</div> -<div class="line"><a name="l02165"></a><span class="lineno"> 2165</span>  && d[40]==0 && d[48]==0 && d[56]==0) {</div> -<div class="line"><a name="l02166"></a><span class="lineno"> 2166</span>  <span class="comment">// no shortcut 0 seconds</span></div> -<div class="line"><a name="l02167"></a><span class="lineno"> 2167</span>  <span class="comment">// (1|2|3|4|5|6|7)==0 0 seconds</span></div> -<div class="line"><a name="l02168"></a><span class="lineno"> 2168</span>  <span class="comment">// all separate -0.047 seconds</span></div> -<div class="line"><a name="l02169"></a><span class="lineno"> 2169</span>  <span class="comment">// 1 && 2|3 && 4|5 && 6|7: -0.047 seconds</span></div> -<div class="line"><a name="l02170"></a><span class="lineno"> 2170</span>  <span class="keywordtype">int</span> dcterm = d[0] << 2;</div> -<div class="line"><a name="l02171"></a><span class="lineno"> 2171</span>  v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm;</div> -<div class="line"><a name="l02172"></a><span class="lineno"> 2172</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02173"></a><span class="lineno"> 2173</span>  STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56])</div> -<div class="line"><a name="l02174"></a><span class="lineno"> 2174</span>  <span class="comment">// constants scaled things up by 1<<12; let's bring them back</span></div> -<div class="line"><a name="l02175"></a><span class="lineno"> 2175</span>  <span class="comment">// down, but keep 2 extra bits of precision</span></div> -<div class="line"><a name="l02176"></a><span class="lineno"> 2176</span>  x0 += 512; x1 += 512; x2 += 512; x3 += 512;</div> -<div class="line"><a name="l02177"></a><span class="lineno"> 2177</span>  v[ 0] = (x0+t3) >> 10;</div> -<div class="line"><a name="l02178"></a><span class="lineno"> 2178</span>  v[56] = (x0-t3) >> 10;</div> -<div class="line"><a name="l02179"></a><span class="lineno"> 2179</span>  v[ 8] = (x1+t2) >> 10;</div> -<div class="line"><a name="l02180"></a><span class="lineno"> 2180</span>  v[48] = (x1-t2) >> 10;</div> -<div class="line"><a name="l02181"></a><span class="lineno"> 2181</span>  v[16] = (x2+t1) >> 10;</div> -<div class="line"><a name="l02182"></a><span class="lineno"> 2182</span>  v[40] = (x2-t1) >> 10;</div> -<div class="line"><a name="l02183"></a><span class="lineno"> 2183</span>  v[24] = (x3+t0) >> 10;</div> -<div class="line"><a name="l02184"></a><span class="lineno"> 2184</span>  v[32] = (x3-t0) >> 10;</div> -<div class="line"><a name="l02185"></a><span class="lineno"> 2185</span>  }</div> -<div class="line"><a name="l02186"></a><span class="lineno"> 2186</span>  }</div> -<div class="line"><a name="l02187"></a><span class="lineno"> 2187</span> </div> -<div class="line"><a name="l02188"></a><span class="lineno"> 2188</span>  for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) {</div> -<div class="line"><a name="l02189"></a><span class="lineno"> 2189</span>  <span class="comment">// no fast case since the first 1D IDCT spread components out</span></div> -<div class="line"><a name="l02190"></a><span class="lineno"> 2190</span>  STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7])</div> -<div class="line"><a name="l02191"></a><span class="lineno"> 2191</span>  <span class="comment">// constants scaled things up by 1<<12, plus we had 1<<2 from first</span></div> -<div class="line"><a name="l02192"></a><span class="lineno"> 2192</span>  <span class="comment">// loop, plus horizontal and vertical each scale by sqrt(8) so together</span></div> -<div class="line"><a name="l02193"></a><span class="lineno"> 2193</span>  <span class="comment">// we've got an extra 1<<3, so 1<<17 total we need to remove.</span></div> -<div class="line"><a name="l02194"></a><span class="lineno"> 2194</span>  <span class="comment">// so we want to round that, which means adding 0.5 * 1<<17,</span></div> -<div class="line"><a name="l02195"></a><span class="lineno"> 2195</span>  <span class="comment">// aka 65536. Also, we'll end up with -128 to 127 that we want</span></div> -<div class="line"><a name="l02196"></a><span class="lineno"> 2196</span>  <span class="comment">// to encode as 0..255 by adding 128, so we'll add that before the shift</span></div> -<div class="line"><a name="l02197"></a><span class="lineno"> 2197</span>  x0 += 65536 + (128<<17);</div> -<div class="line"><a name="l02198"></a><span class="lineno"> 2198</span>  x1 += 65536 + (128<<17);</div> -<div class="line"><a name="l02199"></a><span class="lineno"> 2199</span>  x2 += 65536 + (128<<17);</div> -<div class="line"><a name="l02200"></a><span class="lineno"> 2200</span>  x3 += 65536 + (128<<17);</div> -<div class="line"><a name="l02201"></a><span class="lineno"> 2201</span>  <span class="comment">// tried computing the shifts into temps, or'ing the temps to see</span></div> -<div class="line"><a name="l02202"></a><span class="lineno"> 2202</span>  <span class="comment">// if any were out of range, but that was slower</span></div> -<div class="line"><a name="l02203"></a><span class="lineno"> 2203</span>  o[0] = stbi__clamp((x0+t3) >> 17);</div> -<div class="line"><a name="l02204"></a><span class="lineno"> 2204</span>  o[7] = stbi__clamp((x0-t3) >> 17);</div> -<div class="line"><a name="l02205"></a><span class="lineno"> 2205</span>  o[1] = stbi__clamp((x1+t2) >> 17);</div> -<div class="line"><a name="l02206"></a><span class="lineno"> 2206</span>  o[6] = stbi__clamp((x1-t2) >> 17);</div> -<div class="line"><a name="l02207"></a><span class="lineno"> 2207</span>  o[2] = stbi__clamp((x2+t1) >> 17);</div> -<div class="line"><a name="l02208"></a><span class="lineno"> 2208</span>  o[5] = stbi__clamp((x2-t1) >> 17);</div> -<div class="line"><a name="l02209"></a><span class="lineno"> 2209</span>  o[3] = stbi__clamp((x3+t0) >> 17);</div> -<div class="line"><a name="l02210"></a><span class="lineno"> 2210</span>  o[4] = stbi__clamp((x3-t0) >> 17);</div> -<div class="line"><a name="l02211"></a><span class="lineno"> 2211</span>  }</div> -<div class="line"><a name="l02212"></a><span class="lineno"> 2212</span> }</div> -<div class="line"><a name="l02213"></a><span class="lineno"> 2213</span> </div> -<div class="line"><a name="l02214"></a><span class="lineno"> 2214</span> <span class="preprocessor">#ifdef STBI_SSE2</span></div> -<div class="line"><a name="l02215"></a><span class="lineno"> 2215</span> <span class="preprocessor"></span><span class="comment">// sse2 integer IDCT. not the fastest possible implementation but it</span></div> -<div class="line"><a name="l02216"></a><span class="lineno"> 2216</span> <span class="comment">// produces bit-identical results to the generic C version so it's</span></div> -<div class="line"><a name="l02217"></a><span class="lineno"> 2217</span> <span class="comment">// fully "transparent".</span></div> -<div class="line"><a name="l02218"></a><span class="lineno"> 2218</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__idct_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64])</div> -<div class="line"><a name="l02219"></a><span class="lineno"> 2219</span> {</div> -<div class="line"><a name="l02220"></a><span class="lineno"> 2220</span>  <span class="comment">// This is constructed to match our regular (generic) integer IDCT exactly.</span></div> -<div class="line"><a name="l02221"></a><span class="lineno"> 2221</span>  __m128i row0, row1, row2, row3, row4, row5, row6, row7;</div> -<div class="line"><a name="l02222"></a><span class="lineno"> 2222</span>  __m128i tmp;</div> +<div class="line"><a name="l02161"></a><span class="lineno"> 2161</span>  <span class="comment">// 0 all the ac values now so we can do it 32-bits at a time</span></div> +<div class="line"><a name="l02162"></a><span class="lineno"> 2162</span>  memset(data, 0, 64 * <span class="keyword">sizeof</span>(data[0]));</div> +<div class="line"><a name="l02163"></a><span class="lineno"> 2163</span> </div> +<div class="line"><a name="l02164"></a><span class="lineno"> 2164</span>  diff = t ? stbi__extend_receive(j, t) : 0;</div> +<div class="line"><a name="l02165"></a><span class="lineno"> 2165</span>  dc = j->img_comp[b].dc_pred + diff;</div> +<div class="line"><a name="l02166"></a><span class="lineno"> 2166</span>  j->img_comp[b].dc_pred = dc;</div> +<div class="line"><a name="l02167"></a><span class="lineno"> 2167</span>  data[0] = (short)(dc * dequant[0]);</div> +<div class="line"><a name="l02168"></a><span class="lineno"> 2168</span> </div> +<div class="line"><a name="l02169"></a><span class="lineno"> 2169</span>  <span class="comment">// decode AC components, see JPEG spec</span></div> +<div class="line"><a name="l02170"></a><span class="lineno"> 2170</span>  k = 1;</div> +<div class="line"><a name="l02171"></a><span class="lineno"> 2171</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l02172"></a><span class="lineno"> 2172</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> zig;</div> +<div class="line"><a name="l02173"></a><span class="lineno"> 2173</span>  <span class="keywordtype">int</span> c, r, s;</div> +<div class="line"><a name="l02174"></a><span class="lineno"> 2174</span>  <span class="keywordflow">if</span> (j->code_bits < 16)</div> +<div class="line"><a name="l02175"></a><span class="lineno"> 2175</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02176"></a><span class="lineno"> 2176</span>  c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS) - 1);</div> +<div class="line"><a name="l02177"></a><span class="lineno"> 2177</span>  r = fac[c];</div> +<div class="line"><a name="l02178"></a><span class="lineno"> 2178</span>  <span class="keywordflow">if</span> (r) { <span class="comment">// fast-AC path</span></div> +<div class="line"><a name="l02179"></a><span class="lineno"> 2179</span>  k += (r >> 4) & 15; <span class="comment">// run</span></div> +<div class="line"><a name="l02180"></a><span class="lineno"> 2180</span>  s = r & 15; <span class="comment">// combined length</span></div> +<div class="line"><a name="l02181"></a><span class="lineno"> 2181</span>  j->code_buffer <<= s;</div> +<div class="line"><a name="l02182"></a><span class="lineno"> 2182</span>  j->code_bits -= s;</div> +<div class="line"><a name="l02183"></a><span class="lineno"> 2183</span>  <span class="comment">// decode into unzigzag'd location</span></div> +<div class="line"><a name="l02184"></a><span class="lineno"> 2184</span>  zig = stbi__jpeg_dezigzag[k++];</div> +<div class="line"><a name="l02185"></a><span class="lineno"> 2185</span>  data[zig] = (short)((r >> 8) * dequant[zig]);</div> +<div class="line"><a name="l02186"></a><span class="lineno"> 2186</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02187"></a><span class="lineno"> 2187</span>  <span class="keywordtype">int</span> rs = stbi__jpeg_huff_decode(j, hac);</div> +<div class="line"><a name="l02188"></a><span class="lineno"> 2188</span>  <span class="keywordflow">if</span> (rs < 0)</div> +<div class="line"><a name="l02189"></a><span class="lineno"> 2189</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l02190"></a><span class="lineno"> 2190</span>  s = rs & 15;</div> +<div class="line"><a name="l02191"></a><span class="lineno"> 2191</span>  r = rs >> 4;</div> +<div class="line"><a name="l02192"></a><span class="lineno"> 2192</span>  <span class="keywordflow">if</span> (s == 0) {</div> +<div class="line"><a name="l02193"></a><span class="lineno"> 2193</span>  <span class="keywordflow">if</span> (rs != 0xf0)</div> +<div class="line"><a name="l02194"></a><span class="lineno"> 2194</span>  <span class="keywordflow">break</span>; <span class="comment">// end block</span></div> +<div class="line"><a name="l02195"></a><span class="lineno"> 2195</span>  k += 16;</div> +<div class="line"><a name="l02196"></a><span class="lineno"> 2196</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02197"></a><span class="lineno"> 2197</span>  k += r;</div> +<div class="line"><a name="l02198"></a><span class="lineno"> 2198</span>  <span class="comment">// decode into unzigzag'd location</span></div> +<div class="line"><a name="l02199"></a><span class="lineno"> 2199</span>  zig = stbi__jpeg_dezigzag[k++];</div> +<div class="line"><a name="l02200"></a><span class="lineno"> 2200</span>  data[zig] = (short)(stbi__extend_receive(j, s) * dequant[zig]);</div> +<div class="line"><a name="l02201"></a><span class="lineno"> 2201</span>  }</div> +<div class="line"><a name="l02202"></a><span class="lineno"> 2202</span>  }</div> +<div class="line"><a name="l02203"></a><span class="lineno"> 2203</span>  } <span class="keywordflow">while</span> (k < 64);</div> +<div class="line"><a name="l02204"></a><span class="lineno"> 2204</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l02205"></a><span class="lineno"> 2205</span> }</div> +<div class="line"><a name="l02206"></a><span class="lineno"> 2206</span> </div> +<div class="line"><a name="l02207"></a><span class="lineno"> 2207</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, <span class="keywordtype">short</span> data[64],</div> +<div class="line"><a name="l02208"></a><span class="lineno"> 2208</span>  stbi__huffman *hdc, <span class="keywordtype">int</span> b)</div> +<div class="line"><a name="l02209"></a><span class="lineno"> 2209</span> {</div> +<div class="line"><a name="l02210"></a><span class="lineno"> 2210</span>  <span class="keywordtype">int</span> diff, dc;</div> +<div class="line"><a name="l02211"></a><span class="lineno"> 2211</span>  <span class="keywordtype">int</span> t;</div> +<div class="line"><a name="l02212"></a><span class="lineno"> 2212</span>  <span class="keywordflow">if</span> (j->spec_end != 0)</div> +<div class="line"><a name="l02213"></a><span class="lineno"> 2213</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"can't merge dc and ac"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l02214"></a><span class="lineno"> 2214</span> </div> +<div class="line"><a name="l02215"></a><span class="lineno"> 2215</span>  <span class="keywordflow">if</span> (j->code_bits < 16)</div> +<div class="line"><a name="l02216"></a><span class="lineno"> 2216</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02217"></a><span class="lineno"> 2217</span> </div> +<div class="line"><a name="l02218"></a><span class="lineno"> 2218</span>  <span class="keywordflow">if</span> (j->succ_high == 0) {</div> +<div class="line"><a name="l02219"></a><span class="lineno"> 2219</span>  <span class="comment">// first scan for DC coefficient, must be first</span></div> +<div class="line"><a name="l02220"></a><span class="lineno"> 2220</span>  memset(data, 0, 64 * <span class="keyword">sizeof</span>(data[0])); <span class="comment">// 0 all the ac values now</span></div> +<div class="line"><a name="l02221"></a><span class="lineno"> 2221</span>  t = stbi__jpeg_huff_decode(j, hdc);</div> +<div class="line"><a name="l02222"></a><span class="lineno"> 2222</span>  diff = t ? stbi__extend_receive(j, t) : 0;</div> <div class="line"><a name="l02223"></a><span class="lineno"> 2223</span> </div> -<div class="line"><a name="l02224"></a><span class="lineno"> 2224</span>  <span class="comment">// dot product constant: even elems=x, odd elems=y</span></div> -<div class="line"><a name="l02225"></a><span class="lineno"> 2225</span> <span class="preprocessor"> #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y))</span></div> -<div class="line"><a name="l02226"></a><span class="lineno"> 2226</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02227"></a><span class="lineno"> 2227</span>  <span class="comment">// out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit)</span></div> -<div class="line"><a name="l02228"></a><span class="lineno"> 2228</span>  <span class="comment">// out(1) = c1[even]*x + c1[odd]*y</span></div> -<div class="line"><a name="l02229"></a><span class="lineno"> 2229</span> <span class="preprocessor"> #define dct_rot(out0,out1, x,y,c0,c1) \</span></div> -<div class="line"><a name="l02230"></a><span class="lineno"> 2230</span> <span class="preprocessor"> __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \</span></div> -<div class="line"><a name="l02231"></a><span class="lineno"> 2231</span> <span class="preprocessor"> __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \</span></div> -<div class="line"><a name="l02232"></a><span class="lineno"> 2232</span> <span class="preprocessor"> __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \</span></div> -<div class="line"><a name="l02233"></a><span class="lineno"> 2233</span> <span class="preprocessor"> __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \</span></div> -<div class="line"><a name="l02234"></a><span class="lineno"> 2234</span> <span class="preprocessor"> __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \</span></div> -<div class="line"><a name="l02235"></a><span class="lineno"> 2235</span> <span class="preprocessor"> __m128i out1##_h = _mm_madd_epi16(c0##hi, c1)</span></div> -<div class="line"><a name="l02236"></a><span class="lineno"> 2236</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02237"></a><span class="lineno"> 2237</span>  <span class="comment">// out = in << 12 (in 16-bit, out 32-bit)</span></div> -<div class="line"><a name="l02238"></a><span class="lineno"> 2238</span> <span class="preprocessor"> #define dct_widen(out, in) \</span></div> -<div class="line"><a name="l02239"></a><span class="lineno"> 2239</span> <span class="preprocessor"> __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \</span></div> -<div class="line"><a name="l02240"></a><span class="lineno"> 2240</span> <span class="preprocessor"> __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4)</span></div> -<div class="line"><a name="l02241"></a><span class="lineno"> 2241</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02242"></a><span class="lineno"> 2242</span>  <span class="comment">// wide add</span></div> -<div class="line"><a name="l02243"></a><span class="lineno"> 2243</span> <span class="preprocessor"> #define dct_wadd(out, a, b) \</span></div> -<div class="line"><a name="l02244"></a><span class="lineno"> 2244</span> <span class="preprocessor"> __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \</span></div> -<div class="line"><a name="l02245"></a><span class="lineno"> 2245</span> <span class="preprocessor"> __m128i out##_h = _mm_add_epi32(a##_h, b##_h)</span></div> -<div class="line"><a name="l02246"></a><span class="lineno"> 2246</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02247"></a><span class="lineno"> 2247</span>  <span class="comment">// wide sub</span></div> -<div class="line"><a name="l02248"></a><span class="lineno"> 2248</span> <span class="preprocessor"> #define dct_wsub(out, a, b) \</span></div> -<div class="line"><a name="l02249"></a><span class="lineno"> 2249</span> <span class="preprocessor"> __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \</span></div> -<div class="line"><a name="l02250"></a><span class="lineno"> 2250</span> <span class="preprocessor"> __m128i out##_h = _mm_sub_epi32(a##_h, b##_h)</span></div> -<div class="line"><a name="l02251"></a><span class="lineno"> 2251</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02252"></a><span class="lineno"> 2252</span>  <span class="comment">// butterfly a/b, add bias, then shift by "s" and pack</span></div> -<div class="line"><a name="l02253"></a><span class="lineno"> 2253</span> <span class="preprocessor"> #define dct_bfly32o(out0, out1, a,b,bias,s) \</span></div> -<div class="line"><a name="l02254"></a><span class="lineno"> 2254</span> <span class="preprocessor"> { \</span></div> -<div class="line"><a name="l02255"></a><span class="lineno"> 2255</span> <span class="preprocessor"> __m128i abiased_l = _mm_add_epi32(a##_l, bias); \</span></div> -<div class="line"><a name="l02256"></a><span class="lineno"> 2256</span> <span class="preprocessor"> __m128i abiased_h = _mm_add_epi32(a##_h, bias); \</span></div> -<div class="line"><a name="l02257"></a><span class="lineno"> 2257</span> <span class="preprocessor"> dct_wadd(sum, abiased, b); \</span></div> -<div class="line"><a name="l02258"></a><span class="lineno"> 2258</span> <span class="preprocessor"> dct_wsub(dif, abiased, b); \</span></div> -<div class="line"><a name="l02259"></a><span class="lineno"> 2259</span> <span class="preprocessor"> out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \</span></div> -<div class="line"><a name="l02260"></a><span class="lineno"> 2260</span> <span class="preprocessor"> out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \</span></div> -<div class="line"><a name="l02261"></a><span class="lineno"> 2261</span> <span class="preprocessor"> }</span></div> -<div class="line"><a name="l02262"></a><span class="lineno"> 2262</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02263"></a><span class="lineno"> 2263</span>  <span class="comment">// 8-bit interleave step (for transposes)</span></div> -<div class="line"><a name="l02264"></a><span class="lineno"> 2264</span> <span class="preprocessor"> #define dct_interleave8(a, b) \</span></div> -<div class="line"><a name="l02265"></a><span class="lineno"> 2265</span> <span class="preprocessor"> tmp = a; \</span></div> -<div class="line"><a name="l02266"></a><span class="lineno"> 2266</span> <span class="preprocessor"> a = _mm_unpacklo_epi8(a, b); \</span></div> -<div class="line"><a name="l02267"></a><span class="lineno"> 2267</span> <span class="preprocessor"> b = _mm_unpackhi_epi8(tmp, b)</span></div> -<div class="line"><a name="l02268"></a><span class="lineno"> 2268</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02269"></a><span class="lineno"> 2269</span>  <span class="comment">// 16-bit interleave step (for transposes)</span></div> -<div class="line"><a name="l02270"></a><span class="lineno"> 2270</span> <span class="preprocessor"> #define dct_interleave16(a, b) \</span></div> -<div class="line"><a name="l02271"></a><span class="lineno"> 2271</span> <span class="preprocessor"> tmp = a; \</span></div> -<div class="line"><a name="l02272"></a><span class="lineno"> 2272</span> <span class="preprocessor"> a = _mm_unpacklo_epi16(a, b); \</span></div> -<div class="line"><a name="l02273"></a><span class="lineno"> 2273</span> <span class="preprocessor"> b = _mm_unpackhi_epi16(tmp, b)</span></div> -<div class="line"><a name="l02274"></a><span class="lineno"> 2274</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02275"></a><span class="lineno"> 2275</span> <span class="preprocessor"> #define dct_pass(bias,shift) \</span></div> -<div class="line"><a name="l02276"></a><span class="lineno"> 2276</span> <span class="preprocessor"> { \</span></div> -<div class="line"><a name="l02277"></a><span class="lineno"> 2277</span> <span class="preprocessor"> </span><span class="comment">/* even part */</span><span class="preprocessor"> \</span></div> -<div class="line"><a name="l02278"></a><span class="lineno"> 2278</span> <span class="preprocessor"> dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \</span></div> -<div class="line"><a name="l02279"></a><span class="lineno"> 2279</span> <span class="preprocessor"> __m128i sum04 = _mm_add_epi16(row0, row4); \</span></div> -<div class="line"><a name="l02280"></a><span class="lineno"> 2280</span> <span class="preprocessor"> __m128i dif04 = _mm_sub_epi16(row0, row4); \</span></div> -<div class="line"><a name="l02281"></a><span class="lineno"> 2281</span> <span class="preprocessor"> dct_widen(t0e, sum04); \</span></div> -<div class="line"><a name="l02282"></a><span class="lineno"> 2282</span> <span class="preprocessor"> dct_widen(t1e, dif04); \</span></div> -<div class="line"><a name="l02283"></a><span class="lineno"> 2283</span> <span class="preprocessor"> dct_wadd(x0, t0e, t3e); \</span></div> -<div class="line"><a name="l02284"></a><span class="lineno"> 2284</span> <span class="preprocessor"> dct_wsub(x3, t0e, t3e); \</span></div> -<div class="line"><a name="l02285"></a><span class="lineno"> 2285</span> <span class="preprocessor"> dct_wadd(x1, t1e, t2e); \</span></div> -<div class="line"><a name="l02286"></a><span class="lineno"> 2286</span> <span class="preprocessor"> dct_wsub(x2, t1e, t2e); \</span></div> -<div class="line"><a name="l02287"></a><span class="lineno"> 2287</span> <span class="preprocessor"> </span><span class="comment">/* odd part */</span><span class="preprocessor"> \</span></div> -<div class="line"><a name="l02288"></a><span class="lineno"> 2288</span> <span class="preprocessor"> dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \</span></div> -<div class="line"><a name="l02289"></a><span class="lineno"> 2289</span> <span class="preprocessor"> dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \</span></div> -<div class="line"><a name="l02290"></a><span class="lineno"> 2290</span> <span class="preprocessor"> __m128i sum17 = _mm_add_epi16(row1, row7); \</span></div> -<div class="line"><a name="l02291"></a><span class="lineno"> 2291</span> <span class="preprocessor"> __m128i sum35 = _mm_add_epi16(row3, row5); \</span></div> -<div class="line"><a name="l02292"></a><span class="lineno"> 2292</span> <span class="preprocessor"> dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \</span></div> -<div class="line"><a name="l02293"></a><span class="lineno"> 2293</span> <span class="preprocessor"> dct_wadd(x4, y0o, y4o); \</span></div> -<div class="line"><a name="l02294"></a><span class="lineno"> 2294</span> <span class="preprocessor"> dct_wadd(x5, y1o, y5o); \</span></div> -<div class="line"><a name="l02295"></a><span class="lineno"> 2295</span> <span class="preprocessor"> dct_wadd(x6, y2o, y5o); \</span></div> -<div class="line"><a name="l02296"></a><span class="lineno"> 2296</span> <span class="preprocessor"> dct_wadd(x7, y3o, y4o); \</span></div> -<div class="line"><a name="l02297"></a><span class="lineno"> 2297</span> <span class="preprocessor"> dct_bfly32o(row0,row7, x0,x7,bias,shift); \</span></div> -<div class="line"><a name="l02298"></a><span class="lineno"> 2298</span> <span class="preprocessor"> dct_bfly32o(row1,row6, x1,x6,bias,shift); \</span></div> -<div class="line"><a name="l02299"></a><span class="lineno"> 2299</span> <span class="preprocessor"> dct_bfly32o(row2,row5, x2,x5,bias,shift); \</span></div> -<div class="line"><a name="l02300"></a><span class="lineno"> 2300</span> <span class="preprocessor"> dct_bfly32o(row3,row4, x3,x4,bias,shift); \</span></div> -<div class="line"><a name="l02301"></a><span class="lineno"> 2301</span> <span class="preprocessor"> }</span></div> -<div class="line"><a name="l02302"></a><span class="lineno"> 2302</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02303"></a><span class="lineno"> 2303</span>  __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f));</div> -<div class="line"><a name="l02304"></a><span class="lineno"> 2304</span>  __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f));</div> -<div class="line"><a name="l02305"></a><span class="lineno"> 2305</span>  __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f));</div> -<div class="line"><a name="l02306"></a><span class="lineno"> 2306</span>  __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f));</div> -<div class="line"><a name="l02307"></a><span class="lineno"> 2307</span>  __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f));</div> -<div class="line"><a name="l02308"></a><span class="lineno"> 2308</span>  __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f));</div> -<div class="line"><a name="l02309"></a><span class="lineno"> 2309</span>  __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f));</div> -<div class="line"><a name="l02310"></a><span class="lineno"> 2310</span>  __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f));</div> -<div class="line"><a name="l02311"></a><span class="lineno"> 2311</span> </div> -<div class="line"><a name="l02312"></a><span class="lineno"> 2312</span>  <span class="comment">// rounding biases in column/row passes, see stbi__idct_block for explanation.</span></div> -<div class="line"><a name="l02313"></a><span class="lineno"> 2313</span>  __m128i bias_0 = _mm_set1_epi32(512);</div> -<div class="line"><a name="l02314"></a><span class="lineno"> 2314</span>  __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17));</div> -<div class="line"><a name="l02315"></a><span class="lineno"> 2315</span> </div> -<div class="line"><a name="l02316"></a><span class="lineno"> 2316</span>  <span class="comment">// load</span></div> -<div class="line"><a name="l02317"></a><span class="lineno"> 2317</span>  row0 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 0*8));</div> -<div class="line"><a name="l02318"></a><span class="lineno"> 2318</span>  row1 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 1*8));</div> -<div class="line"><a name="l02319"></a><span class="lineno"> 2319</span>  row2 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 2*8));</div> -<div class="line"><a name="l02320"></a><span class="lineno"> 2320</span>  row3 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 3*8));</div> -<div class="line"><a name="l02321"></a><span class="lineno"> 2321</span>  row4 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 4*8));</div> -<div class="line"><a name="l02322"></a><span class="lineno"> 2322</span>  row5 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 5*8));</div> -<div class="line"><a name="l02323"></a><span class="lineno"> 2323</span>  row6 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 6*8));</div> -<div class="line"><a name="l02324"></a><span class="lineno"> 2324</span>  row7 = _mm_load_si128((<span class="keyword">const</span> __m128i *) (data + 7*8));</div> -<div class="line"><a name="l02325"></a><span class="lineno"> 2325</span> </div> -<div class="line"><a name="l02326"></a><span class="lineno"> 2326</span>  <span class="comment">// column pass</span></div> -<div class="line"><a name="l02327"></a><span class="lineno"> 2327</span>  dct_pass(bias_0, 10);</div> -<div class="line"><a name="l02328"></a><span class="lineno"> 2328</span> </div> -<div class="line"><a name="l02329"></a><span class="lineno"> 2329</span>  {</div> -<div class="line"><a name="l02330"></a><span class="lineno"> 2330</span>  <span class="comment">// 16bit 8x8 transpose pass 1</span></div> -<div class="line"><a name="l02331"></a><span class="lineno"> 2331</span>  dct_interleave16(row0, row4);</div> -<div class="line"><a name="l02332"></a><span class="lineno"> 2332</span>  dct_interleave16(row1, row5);</div> -<div class="line"><a name="l02333"></a><span class="lineno"> 2333</span>  dct_interleave16(row2, row6);</div> -<div class="line"><a name="l02334"></a><span class="lineno"> 2334</span>  dct_interleave16(row3, row7);</div> -<div class="line"><a name="l02335"></a><span class="lineno"> 2335</span> </div> -<div class="line"><a name="l02336"></a><span class="lineno"> 2336</span>  <span class="comment">// transpose pass 2</span></div> -<div class="line"><a name="l02337"></a><span class="lineno"> 2337</span>  dct_interleave16(row0, row2);</div> -<div class="line"><a name="l02338"></a><span class="lineno"> 2338</span>  dct_interleave16(row1, row3);</div> -<div class="line"><a name="l02339"></a><span class="lineno"> 2339</span>  dct_interleave16(row4, row6);</div> -<div class="line"><a name="l02340"></a><span class="lineno"> 2340</span>  dct_interleave16(row5, row7);</div> -<div class="line"><a name="l02341"></a><span class="lineno"> 2341</span> </div> -<div class="line"><a name="l02342"></a><span class="lineno"> 2342</span>  <span class="comment">// transpose pass 3</span></div> -<div class="line"><a name="l02343"></a><span class="lineno"> 2343</span>  dct_interleave16(row0, row1);</div> -<div class="line"><a name="l02344"></a><span class="lineno"> 2344</span>  dct_interleave16(row2, row3);</div> -<div class="line"><a name="l02345"></a><span class="lineno"> 2345</span>  dct_interleave16(row4, row5);</div> -<div class="line"><a name="l02346"></a><span class="lineno"> 2346</span>  dct_interleave16(row6, row7);</div> -<div class="line"><a name="l02347"></a><span class="lineno"> 2347</span>  }</div> -<div class="line"><a name="l02348"></a><span class="lineno"> 2348</span> </div> -<div class="line"><a name="l02349"></a><span class="lineno"> 2349</span>  <span class="comment">// row pass</span></div> -<div class="line"><a name="l02350"></a><span class="lineno"> 2350</span>  dct_pass(bias_1, 17);</div> -<div class="line"><a name="l02351"></a><span class="lineno"> 2351</span> </div> -<div class="line"><a name="l02352"></a><span class="lineno"> 2352</span>  {</div> -<div class="line"><a name="l02353"></a><span class="lineno"> 2353</span>  <span class="comment">// pack</span></div> -<div class="line"><a name="l02354"></a><span class="lineno"> 2354</span>  __m128i p0 = _mm_packus_epi16(row0, row1); <span class="comment">// a0a1a2a3...a7b0b1b2b3...b7</span></div> -<div class="line"><a name="l02355"></a><span class="lineno"> 2355</span>  __m128i p1 = _mm_packus_epi16(row2, row3);</div> -<div class="line"><a name="l02356"></a><span class="lineno"> 2356</span>  __m128i p2 = _mm_packus_epi16(row4, row5);</div> -<div class="line"><a name="l02357"></a><span class="lineno"> 2357</span>  __m128i p3 = _mm_packus_epi16(row6, row7);</div> -<div class="line"><a name="l02358"></a><span class="lineno"> 2358</span> </div> -<div class="line"><a name="l02359"></a><span class="lineno"> 2359</span>  <span class="comment">// 8bit 8x8 transpose pass 1</span></div> -<div class="line"><a name="l02360"></a><span class="lineno"> 2360</span>  dct_interleave8(p0, p2); <span class="comment">// a0e0a1e1...</span></div> -<div class="line"><a name="l02361"></a><span class="lineno"> 2361</span>  dct_interleave8(p1, p3); <span class="comment">// c0g0c1g1...</span></div> -<div class="line"><a name="l02362"></a><span class="lineno"> 2362</span> </div> -<div class="line"><a name="l02363"></a><span class="lineno"> 2363</span>  <span class="comment">// transpose pass 2</span></div> -<div class="line"><a name="l02364"></a><span class="lineno"> 2364</span>  dct_interleave8(p0, p1); <span class="comment">// a0c0e0g0...</span></div> -<div class="line"><a name="l02365"></a><span class="lineno"> 2365</span>  dct_interleave8(p2, p3); <span class="comment">// b0d0f0h0...</span></div> -<div class="line"><a name="l02366"></a><span class="lineno"> 2366</span> </div> -<div class="line"><a name="l02367"></a><span class="lineno"> 2367</span>  <span class="comment">// transpose pass 3</span></div> -<div class="line"><a name="l02368"></a><span class="lineno"> 2368</span>  dct_interleave8(p0, p2); <span class="comment">// a0b0c0d0...</span></div> -<div class="line"><a name="l02369"></a><span class="lineno"> 2369</span>  dct_interleave8(p1, p3); <span class="comment">// a4b4c4d4...</span></div> -<div class="line"><a name="l02370"></a><span class="lineno"> 2370</span> </div> -<div class="line"><a name="l02371"></a><span class="lineno"> 2371</span>  <span class="comment">// store</span></div> -<div class="line"><a name="l02372"></a><span class="lineno"> 2372</span>  _mm_storel_epi64((__m128i *) out, p0); out += out_stride;</div> -<div class="line"><a name="l02373"></a><span class="lineno"> 2373</span>  _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride;</div> -<div class="line"><a name="l02374"></a><span class="lineno"> 2374</span>  _mm_storel_epi64((__m128i *) out, p2); out += out_stride;</div> -<div class="line"><a name="l02375"></a><span class="lineno"> 2375</span>  _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride;</div> -<div class="line"><a name="l02376"></a><span class="lineno"> 2376</span>  _mm_storel_epi64((__m128i *) out, p1); out += out_stride;</div> -<div class="line"><a name="l02377"></a><span class="lineno"> 2377</span>  _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride;</div> -<div class="line"><a name="l02378"></a><span class="lineno"> 2378</span>  _mm_storel_epi64((__m128i *) out, p3); out += out_stride;</div> -<div class="line"><a name="l02379"></a><span class="lineno"> 2379</span>  _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e));</div> -<div class="line"><a name="l02380"></a><span class="lineno"> 2380</span>  }</div> -<div class="line"><a name="l02381"></a><span class="lineno"> 2381</span> </div> -<div class="line"><a name="l02382"></a><span class="lineno"> 2382</span> <span class="preprocessor">#undef dct_const</span></div> -<div class="line"><a name="l02383"></a><span class="lineno"> 2383</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_rot</span></div> -<div class="line"><a name="l02384"></a><span class="lineno"> 2384</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_widen</span></div> -<div class="line"><a name="l02385"></a><span class="lineno"> 2385</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wadd</span></div> -<div class="line"><a name="l02386"></a><span class="lineno"> 2386</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wsub</span></div> -<div class="line"><a name="l02387"></a><span class="lineno"> 2387</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_bfly32o</span></div> -<div class="line"><a name="l02388"></a><span class="lineno"> 2388</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_interleave8</span></div> -<div class="line"><a name="l02389"></a><span class="lineno"> 2389</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_interleave16</span></div> -<div class="line"><a name="l02390"></a><span class="lineno"> 2390</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_pass</span></div> -<div class="line"><a name="l02391"></a><span class="lineno"> 2391</span> <span class="preprocessor"></span>}</div> -<div class="line"><a name="l02392"></a><span class="lineno"> 2392</span> </div> -<div class="line"><a name="l02393"></a><span class="lineno"> 2393</span> <span class="preprocessor">#endif // STBI_SSE2</span></div> -<div class="line"><a name="l02394"></a><span class="lineno"> 2394</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02395"></a><span class="lineno"> 2395</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> -<div class="line"><a name="l02396"></a><span class="lineno"> 2396</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02397"></a><span class="lineno"> 2397</span> <span class="comment">// NEON integer IDCT. should produce bit-identical</span></div> -<div class="line"><a name="l02398"></a><span class="lineno"> 2398</span> <span class="comment">// results to the generic C version.</span></div> -<div class="line"><a name="l02399"></a><span class="lineno"> 2399</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__idct_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64])</div> -<div class="line"><a name="l02400"></a><span class="lineno"> 2400</span> {</div> -<div class="line"><a name="l02401"></a><span class="lineno"> 2401</span>  int16x8_t row0, row1, row2, row3, row4, row5, row6, row7;</div> -<div class="line"><a name="l02402"></a><span class="lineno"> 2402</span> </div> -<div class="line"><a name="l02403"></a><span class="lineno"> 2403</span>  int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f));</div> -<div class="line"><a name="l02404"></a><span class="lineno"> 2404</span>  int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f));</div> -<div class="line"><a name="l02405"></a><span class="lineno"> 2405</span>  int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f));</div> -<div class="line"><a name="l02406"></a><span class="lineno"> 2406</span>  int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f));</div> -<div class="line"><a name="l02407"></a><span class="lineno"> 2407</span>  int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f));</div> -<div class="line"><a name="l02408"></a><span class="lineno"> 2408</span>  int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f));</div> -<div class="line"><a name="l02409"></a><span class="lineno"> 2409</span>  int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f));</div> -<div class="line"><a name="l02410"></a><span class="lineno"> 2410</span>  int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f));</div> -<div class="line"><a name="l02411"></a><span class="lineno"> 2411</span>  int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f));</div> -<div class="line"><a name="l02412"></a><span class="lineno"> 2412</span>  int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f));</div> -<div class="line"><a name="l02413"></a><span class="lineno"> 2413</span>  int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f));</div> -<div class="line"><a name="l02414"></a><span class="lineno"> 2414</span>  int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f));</div> -<div class="line"><a name="l02415"></a><span class="lineno"> 2415</span> </div> -<div class="line"><a name="l02416"></a><span class="lineno"> 2416</span> <span class="preprocessor">#define dct_long_mul(out, inq, coeff) \</span></div> -<div class="line"><a name="l02417"></a><span class="lineno"> 2417</span> <span class="preprocessor"> int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \</span></div> -<div class="line"><a name="l02418"></a><span class="lineno"> 2418</span> <span class="preprocessor"> int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff)</span></div> +<div class="line"><a name="l02224"></a><span class="lineno"> 2224</span>  dc = j->img_comp[b].dc_pred + diff;</div> +<div class="line"><a name="l02225"></a><span class="lineno"> 2225</span>  j->img_comp[b].dc_pred = dc;</div> +<div class="line"><a name="l02226"></a><span class="lineno"> 2226</span>  data[0] = (short)(dc << j->succ_low);</div> +<div class="line"><a name="l02227"></a><span class="lineno"> 2227</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02228"></a><span class="lineno"> 2228</span>  <span class="comment">// refinement scan for DC coefficient</span></div> +<div class="line"><a name="l02229"></a><span class="lineno"> 2229</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> +<div class="line"><a name="l02230"></a><span class="lineno"> 2230</span>  data[0] += (<span class="keywordtype">short</span>)(1 << j->succ_low);</div> +<div class="line"><a name="l02231"></a><span class="lineno"> 2231</span>  }</div> +<div class="line"><a name="l02232"></a><span class="lineno"> 2232</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l02233"></a><span class="lineno"> 2233</span> }</div> +<div class="line"><a name="l02234"></a><span class="lineno"> 2234</span> </div> +<div class="line"><a name="l02235"></a><span class="lineno"> 2235</span> <span class="comment">// @OPTIMIZE: store non-zigzagged during the decode passes,</span></div> +<div class="line"><a name="l02236"></a><span class="lineno"> 2236</span> <span class="comment">// and only de-zigzag when dequantizing</span></div> +<div class="line"><a name="l02237"></a><span class="lineno"> 2237</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, <span class="keywordtype">short</span> data[64],</div> +<div class="line"><a name="l02238"></a><span class="lineno"> 2238</span>  stbi__huffman *hac, stbi__int16 *fac)</div> +<div class="line"><a name="l02239"></a><span class="lineno"> 2239</span> {</div> +<div class="line"><a name="l02240"></a><span class="lineno"> 2240</span>  <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l02241"></a><span class="lineno"> 2241</span>  <span class="keywordflow">if</span> (j->spec_start == 0)</div> +<div class="line"><a name="l02242"></a><span class="lineno"> 2242</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"can't merge dc and ac"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l02243"></a><span class="lineno"> 2243</span> </div> +<div class="line"><a name="l02244"></a><span class="lineno"> 2244</span>  <span class="keywordflow">if</span> (j->succ_high == 0) {</div> +<div class="line"><a name="l02245"></a><span class="lineno"> 2245</span>  <span class="keywordtype">int</span> shift = j->succ_low;</div> +<div class="line"><a name="l02246"></a><span class="lineno"> 2246</span> </div> +<div class="line"><a name="l02247"></a><span class="lineno"> 2247</span>  <span class="keywordflow">if</span> (j->eob_run) {</div> +<div class="line"><a name="l02248"></a><span class="lineno"> 2248</span>  --j->eob_run;</div> +<div class="line"><a name="l02249"></a><span class="lineno"> 2249</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l02250"></a><span class="lineno"> 2250</span>  }</div> +<div class="line"><a name="l02251"></a><span class="lineno"> 2251</span> </div> +<div class="line"><a name="l02252"></a><span class="lineno"> 2252</span>  k = j->spec_start;</div> +<div class="line"><a name="l02253"></a><span class="lineno"> 2253</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l02254"></a><span class="lineno"> 2254</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> zig;</div> +<div class="line"><a name="l02255"></a><span class="lineno"> 2255</span>  <span class="keywordtype">int</span> c, r, s;</div> +<div class="line"><a name="l02256"></a><span class="lineno"> 2256</span>  <span class="keywordflow">if</span> (j->code_bits < 16)</div> +<div class="line"><a name="l02257"></a><span class="lineno"> 2257</span>  stbi__grow_buffer_unsafe(j);</div> +<div class="line"><a name="l02258"></a><span class="lineno"> 2258</span>  c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS) - 1);</div> +<div class="line"><a name="l02259"></a><span class="lineno"> 2259</span>  r = fac[c];</div> +<div class="line"><a name="l02260"></a><span class="lineno"> 2260</span>  <span class="keywordflow">if</span> (r) { <span class="comment">// fast-AC path</span></div> +<div class="line"><a name="l02261"></a><span class="lineno"> 2261</span>  k += (r >> 4) & 15; <span class="comment">// run</span></div> +<div class="line"><a name="l02262"></a><span class="lineno"> 2262</span>  s = r & 15; <span class="comment">// combined length</span></div> +<div class="line"><a name="l02263"></a><span class="lineno"> 2263</span>  j->code_buffer <<= s;</div> +<div class="line"><a name="l02264"></a><span class="lineno"> 2264</span>  j->code_bits -= s;</div> +<div class="line"><a name="l02265"></a><span class="lineno"> 2265</span>  zig = stbi__jpeg_dezigzag[k++];</div> +<div class="line"><a name="l02266"></a><span class="lineno"> 2266</span>  data[zig] = (short)((r >> 8) << shift);</div> +<div class="line"><a name="l02267"></a><span class="lineno"> 2267</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02268"></a><span class="lineno"> 2268</span>  <span class="keywordtype">int</span> rs = stbi__jpeg_huff_decode(j, hac);</div> +<div class="line"><a name="l02269"></a><span class="lineno"> 2269</span>  <span class="keywordflow">if</span> (rs < 0)</div> +<div class="line"><a name="l02270"></a><span class="lineno"> 2270</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l02271"></a><span class="lineno"> 2271</span>  s = rs & 15;</div> +<div class="line"><a name="l02272"></a><span class="lineno"> 2272</span>  r = rs >> 4;</div> +<div class="line"><a name="l02273"></a><span class="lineno"> 2273</span>  <span class="keywordflow">if</span> (s == 0) {</div> +<div class="line"><a name="l02274"></a><span class="lineno"> 2274</span>  <span class="keywordflow">if</span> (r < 15) {</div> +<div class="line"><a name="l02275"></a><span class="lineno"> 2275</span>  j->eob_run = (1 << r);</div> +<div class="line"><a name="l02276"></a><span class="lineno"> 2276</span>  <span class="keywordflow">if</span> (r)</div> +<div class="line"><a name="l02277"></a><span class="lineno"> 2277</span>  j->eob_run += stbi__jpeg_get_bits(j, r);</div> +<div class="line"><a name="l02278"></a><span class="lineno"> 2278</span>  --j->eob_run;</div> +<div class="line"><a name="l02279"></a><span class="lineno"> 2279</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l02280"></a><span class="lineno"> 2280</span>  }</div> +<div class="line"><a name="l02281"></a><span class="lineno"> 2281</span>  k += 16;</div> +<div class="line"><a name="l02282"></a><span class="lineno"> 2282</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02283"></a><span class="lineno"> 2283</span>  k += r;</div> +<div class="line"><a name="l02284"></a><span class="lineno"> 2284</span>  zig = stbi__jpeg_dezigzag[k++];</div> +<div class="line"><a name="l02285"></a><span class="lineno"> 2285</span>  data[zig] = (short)(stbi__extend_receive(j, s) << shift);</div> +<div class="line"><a name="l02286"></a><span class="lineno"> 2286</span>  }</div> +<div class="line"><a name="l02287"></a><span class="lineno"> 2287</span>  }</div> +<div class="line"><a name="l02288"></a><span class="lineno"> 2288</span>  } <span class="keywordflow">while</span> (k <= j->spec_end);</div> +<div class="line"><a name="l02289"></a><span class="lineno"> 2289</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02290"></a><span class="lineno"> 2290</span>  <span class="comment">// refinement scan for these AC coefficients</span></div> +<div class="line"><a name="l02291"></a><span class="lineno"> 2291</span> </div> +<div class="line"><a name="l02292"></a><span class="lineno"> 2292</span>  <span class="keywordtype">short</span> bit = (short)(1 << j->succ_low);</div> +<div class="line"><a name="l02293"></a><span class="lineno"> 2293</span> </div> +<div class="line"><a name="l02294"></a><span class="lineno"> 2294</span>  <span class="keywordflow">if</span> (j->eob_run) {</div> +<div class="line"><a name="l02295"></a><span class="lineno"> 2295</span>  --j->eob_run;</div> +<div class="line"><a name="l02296"></a><span class="lineno"> 2296</span>  <span class="keywordflow">for</span> (k = j->spec_start; k <= j->spec_end; ++k) {</div> +<div class="line"><a name="l02297"></a><span class="lineno"> 2297</span>  <span class="keywordtype">short</span> *p = &data[stbi__jpeg_dezigzag[k]];</div> +<div class="line"><a name="l02298"></a><span class="lineno"> 2298</span>  <span class="keywordflow">if</span> (*p != 0)</div> +<div class="line"><a name="l02299"></a><span class="lineno"> 2299</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> +<div class="line"><a name="l02300"></a><span class="lineno"> 2300</span>  <span class="keywordflow">if</span> ((*p & bit) == 0) {</div> +<div class="line"><a name="l02301"></a><span class="lineno"> 2301</span>  <span class="keywordflow">if</span> (*p > 0)</div> +<div class="line"><a name="l02302"></a><span class="lineno"> 2302</span>  *p += bit;</div> +<div class="line"><a name="l02303"></a><span class="lineno"> 2303</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l02304"></a><span class="lineno"> 2304</span>  *p -= bit;</div> +<div class="line"><a name="l02305"></a><span class="lineno"> 2305</span>  }</div> +<div class="line"><a name="l02306"></a><span class="lineno"> 2306</span>  }</div> +<div class="line"><a name="l02307"></a><span class="lineno"> 2307</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02308"></a><span class="lineno"> 2308</span>  k = j->spec_start;</div> +<div class="line"><a name="l02309"></a><span class="lineno"> 2309</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l02310"></a><span class="lineno"> 2310</span>  <span class="keywordtype">int</span> r, s;</div> +<div class="line"><a name="l02311"></a><span class="lineno"> 2311</span>  <span class="keywordtype">int</span> rs = stbi__jpeg_huff_decode(j, hac); <span class="comment">// @OPTIMIZE see if we</span></div> +<div class="line"><a name="l02312"></a><span class="lineno"> 2312</span>  <span class="comment">// can use the fast</span></div> +<div class="line"><a name="l02313"></a><span class="lineno"> 2313</span>  <span class="comment">// path here,</span></div> +<div class="line"><a name="l02314"></a><span class="lineno"> 2314</span>  <span class="comment">// advance-by-r is so</span></div> +<div class="line"><a name="l02315"></a><span class="lineno"> 2315</span>  <span class="comment">// slow, eh</span></div> +<div class="line"><a name="l02316"></a><span class="lineno"> 2316</span>  <span class="keywordflow">if</span> (rs < 0)</div> +<div class="line"><a name="l02317"></a><span class="lineno"> 2317</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l02318"></a><span class="lineno"> 2318</span>  s = rs & 15;</div> +<div class="line"><a name="l02319"></a><span class="lineno"> 2319</span>  r = rs >> 4;</div> +<div class="line"><a name="l02320"></a><span class="lineno"> 2320</span>  <span class="keywordflow">if</span> (s == 0) {</div> +<div class="line"><a name="l02321"></a><span class="lineno"> 2321</span>  <span class="keywordflow">if</span> (r < 15) {</div> +<div class="line"><a name="l02322"></a><span class="lineno"> 2322</span>  j->eob_run = (1 << r) - 1;</div> +<div class="line"><a name="l02323"></a><span class="lineno"> 2323</span>  <span class="keywordflow">if</span> (r)</div> +<div class="line"><a name="l02324"></a><span class="lineno"> 2324</span>  j->eob_run += stbi__jpeg_get_bits(j, r);</div> +<div class="line"><a name="l02325"></a><span class="lineno"> 2325</span>  r = 64; <span class="comment">// force end of block</span></div> +<div class="line"><a name="l02326"></a><span class="lineno"> 2326</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02327"></a><span class="lineno"> 2327</span>  <span class="comment">// r=15 s=0 should write 16 0s, so we just do</span></div> +<div class="line"><a name="l02328"></a><span class="lineno"> 2328</span>  <span class="comment">// a run of 15 0s and then write s (which is 0),</span></div> +<div class="line"><a name="l02329"></a><span class="lineno"> 2329</span>  <span class="comment">// so we don't have to do anything special here</span></div> +<div class="line"><a name="l02330"></a><span class="lineno"> 2330</span>  }</div> +<div class="line"><a name="l02331"></a><span class="lineno"> 2331</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02332"></a><span class="lineno"> 2332</span>  <span class="keywordflow">if</span> (s != 1)</div> +<div class="line"><a name="l02333"></a><span class="lineno"> 2333</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l02334"></a><span class="lineno"> 2334</span>  <span class="comment">// sign bit</span></div> +<div class="line"><a name="l02335"></a><span class="lineno"> 2335</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> +<div class="line"><a name="l02336"></a><span class="lineno"> 2336</span>  s = bit;</div> +<div class="line"><a name="l02337"></a><span class="lineno"> 2337</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l02338"></a><span class="lineno"> 2338</span>  s = -bit;</div> +<div class="line"><a name="l02339"></a><span class="lineno"> 2339</span>  }</div> +<div class="line"><a name="l02340"></a><span class="lineno"> 2340</span> </div> +<div class="line"><a name="l02341"></a><span class="lineno"> 2341</span>  <span class="comment">// advance by r</span></div> +<div class="line"><a name="l02342"></a><span class="lineno"> 2342</span>  <span class="keywordflow">while</span> (k <= j->spec_end) {</div> +<div class="line"><a name="l02343"></a><span class="lineno"> 2343</span>  <span class="keywordtype">short</span> *p = &data[stbi__jpeg_dezigzag[k++]];</div> +<div class="line"><a name="l02344"></a><span class="lineno"> 2344</span>  <span class="keywordflow">if</span> (*p != 0) {</div> +<div class="line"><a name="l02345"></a><span class="lineno"> 2345</span>  <span class="keywordflow">if</span> (stbi__jpeg_get_bit(j))</div> +<div class="line"><a name="l02346"></a><span class="lineno"> 2346</span>  <span class="keywordflow">if</span> ((*p & bit) == 0) {</div> +<div class="line"><a name="l02347"></a><span class="lineno"> 2347</span>  <span class="keywordflow">if</span> (*p > 0)</div> +<div class="line"><a name="l02348"></a><span class="lineno"> 2348</span>  *p += bit;</div> +<div class="line"><a name="l02349"></a><span class="lineno"> 2349</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l02350"></a><span class="lineno"> 2350</span>  *p -= bit;</div> +<div class="line"><a name="l02351"></a><span class="lineno"> 2351</span>  }</div> +<div class="line"><a name="l02352"></a><span class="lineno"> 2352</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02353"></a><span class="lineno"> 2353</span>  <span class="keywordflow">if</span> (r == 0) {</div> +<div class="line"><a name="l02354"></a><span class="lineno"> 2354</span>  *p = (short)s;</div> +<div class="line"><a name="l02355"></a><span class="lineno"> 2355</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l02356"></a><span class="lineno"> 2356</span>  }</div> +<div class="line"><a name="l02357"></a><span class="lineno"> 2357</span>  --r;</div> +<div class="line"><a name="l02358"></a><span class="lineno"> 2358</span>  }</div> +<div class="line"><a name="l02359"></a><span class="lineno"> 2359</span>  }</div> +<div class="line"><a name="l02360"></a><span class="lineno"> 2360</span>  } <span class="keywordflow">while</span> (k <= j->spec_end);</div> +<div class="line"><a name="l02361"></a><span class="lineno"> 2361</span>  }</div> +<div class="line"><a name="l02362"></a><span class="lineno"> 2362</span>  }</div> +<div class="line"><a name="l02363"></a><span class="lineno"> 2363</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l02364"></a><span class="lineno"> 2364</span> }</div> +<div class="line"><a name="l02365"></a><span class="lineno"> 2365</span> </div> +<div class="line"><a name="l02366"></a><span class="lineno"> 2366</span> <span class="comment">// take a -128..127 value and stbi__clamp it and convert to 0..255</span></div> +<div class="line"><a name="l02367"></a><span class="lineno"> 2367</span> stbi_inline <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__clamp(<span class="keywordtype">int</span> x)</div> +<div class="line"><a name="l02368"></a><span class="lineno"> 2368</span> {</div> +<div class="line"><a name="l02369"></a><span class="lineno"> 2369</span>  <span class="comment">// trick to use a single test to catch both cases</span></div> +<div class="line"><a name="l02370"></a><span class="lineno"> 2370</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)x > 255) {</div> +<div class="line"><a name="l02371"></a><span class="lineno"> 2371</span>  <span class="keywordflow">if</span> (x < 0)</div> +<div class="line"><a name="l02372"></a><span class="lineno"> 2372</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l02373"></a><span class="lineno"> 2373</span>  <span class="keywordflow">if</span> (x > 255)</div> +<div class="line"><a name="l02374"></a><span class="lineno"> 2374</span>  <span class="keywordflow">return</span> 255;</div> +<div class="line"><a name="l02375"></a><span class="lineno"> 2375</span>  }</div> +<div class="line"><a name="l02376"></a><span class="lineno"> 2376</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)x;</div> +<div class="line"><a name="l02377"></a><span class="lineno"> 2377</span> }</div> +<div class="line"><a name="l02378"></a><span class="lineno"> 2378</span> </div> +<div class="line"><a name="l02379"></a><span class="lineno"> 2379</span> <span class="preprocessor">#define stbi__f2f(x) ((int)(((x)*4096 + 0.5)))</span></div> +<div class="line"><a name="l02380"></a><span class="lineno"> 2380</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__fsh(x) ((x) << 12)</span></div> +<div class="line"><a name="l02381"></a><span class="lineno"> 2381</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02382"></a><span class="lineno"> 2382</span> <span class="comment">// derived from jidctint -- DCT_ISLOW</span></div> +<div class="line"><a name="l02383"></a><span class="lineno"> 2383</span> <span class="preprocessor">#define STBI__IDCT_1D(s0, s1, s2, s3, s4, s5, s6, s7) \</span></div> +<div class="line"><a name="l02384"></a><span class="lineno"> 2384</span> <span class="preprocessor"> int t0, t1, t2, t3, p1, p2, p3, p4, p5, x0, x1, x2, x3; \</span></div> +<div class="line"><a name="l02385"></a><span class="lineno"> 2385</span> <span class="preprocessor"> p2 = s2; \</span></div> +<div class="line"><a name="l02386"></a><span class="lineno"> 2386</span> <span class="preprocessor"> p3 = s6; \</span></div> +<div class="line"><a name="l02387"></a><span class="lineno"> 2387</span> <span class="preprocessor"> p1 = (p2 + p3) * stbi__f2f(0.5411961f); \</span></div> +<div class="line"><a name="l02388"></a><span class="lineno"> 2388</span> <span class="preprocessor"> t2 = p1 + p3 * stbi__f2f(-1.847759065f); \</span></div> +<div class="line"><a name="l02389"></a><span class="lineno"> 2389</span> <span class="preprocessor"> t3 = p1 + p2 * stbi__f2f(0.765366865f); \</span></div> +<div class="line"><a name="l02390"></a><span class="lineno"> 2390</span> <span class="preprocessor"> p2 = s0; \</span></div> +<div class="line"><a name="l02391"></a><span class="lineno"> 2391</span> <span class="preprocessor"> p3 = s4; \</span></div> +<div class="line"><a name="l02392"></a><span class="lineno"> 2392</span> <span class="preprocessor"> t0 = stbi__fsh(p2 + p3); \</span></div> +<div class="line"><a name="l02393"></a><span class="lineno"> 2393</span> <span class="preprocessor"> t1 = stbi__fsh(p2 - p3); \</span></div> +<div class="line"><a name="l02394"></a><span class="lineno"> 2394</span> <span class="preprocessor"> x0 = t0 + t3; \</span></div> +<div class="line"><a name="l02395"></a><span class="lineno"> 2395</span> <span class="preprocessor"> x3 = t0 - t3; \</span></div> +<div class="line"><a name="l02396"></a><span class="lineno"> 2396</span> <span class="preprocessor"> x1 = t1 + t2; \</span></div> +<div class="line"><a name="l02397"></a><span class="lineno"> 2397</span> <span class="preprocessor"> x2 = t1 - t2; \</span></div> +<div class="line"><a name="l02398"></a><span class="lineno"> 2398</span> <span class="preprocessor"> t0 = s7; \</span></div> +<div class="line"><a name="l02399"></a><span class="lineno"> 2399</span> <span class="preprocessor"> t1 = s5; \</span></div> +<div class="line"><a name="l02400"></a><span class="lineno"> 2400</span> <span class="preprocessor"> t2 = s3; \</span></div> +<div class="line"><a name="l02401"></a><span class="lineno"> 2401</span> <span class="preprocessor"> t3 = s1; \</span></div> +<div class="line"><a name="l02402"></a><span class="lineno"> 2402</span> <span class="preprocessor"> p3 = t0 + t2; \</span></div> +<div class="line"><a name="l02403"></a><span class="lineno"> 2403</span> <span class="preprocessor"> p4 = t1 + t3; \</span></div> +<div class="line"><a name="l02404"></a><span class="lineno"> 2404</span> <span class="preprocessor"> p1 = t0 + t3; \</span></div> +<div class="line"><a name="l02405"></a><span class="lineno"> 2405</span> <span class="preprocessor"> p2 = t1 + t2; \</span></div> +<div class="line"><a name="l02406"></a><span class="lineno"> 2406</span> <span class="preprocessor"> p5 = (p3 + p4) * stbi__f2f(1.175875602f); \</span></div> +<div class="line"><a name="l02407"></a><span class="lineno"> 2407</span> <span class="preprocessor"> t0 = t0 * stbi__f2f(0.298631336f); \</span></div> +<div class="line"><a name="l02408"></a><span class="lineno"> 2408</span> <span class="preprocessor"> t1 = t1 * stbi__f2f(2.053119869f); \</span></div> +<div class="line"><a name="l02409"></a><span class="lineno"> 2409</span> <span class="preprocessor"> t2 = t2 * stbi__f2f(3.072711026f); \</span></div> +<div class="line"><a name="l02410"></a><span class="lineno"> 2410</span> <span class="preprocessor"> t3 = t3 * stbi__f2f(1.501321110f); \</span></div> +<div class="line"><a name="l02411"></a><span class="lineno"> 2411</span> <span class="preprocessor"> p1 = p5 + p1 * stbi__f2f(-0.899976223f); \</span></div> +<div class="line"><a name="l02412"></a><span class="lineno"> 2412</span> <span class="preprocessor"> p2 = p5 + p2 * stbi__f2f(-2.562915447f); \</span></div> +<div class="line"><a name="l02413"></a><span class="lineno"> 2413</span> <span class="preprocessor"> p3 = p3 * stbi__f2f(-1.961570560f); \</span></div> +<div class="line"><a name="l02414"></a><span class="lineno"> 2414</span> <span class="preprocessor"> p4 = p4 * stbi__f2f(-0.390180644f); \</span></div> +<div class="line"><a name="l02415"></a><span class="lineno"> 2415</span> <span class="preprocessor"> t3 += p1 + p4; \</span></div> +<div class="line"><a name="l02416"></a><span class="lineno"> 2416</span> <span class="preprocessor"> t2 += p2 + p3; \</span></div> +<div class="line"><a name="l02417"></a><span class="lineno"> 2417</span> <span class="preprocessor"> t1 += p2 + p4; \</span></div> +<div class="line"><a name="l02418"></a><span class="lineno"> 2418</span> <span class="preprocessor"> t0 += p1 + p3;</span></div> <div class="line"><a name="l02419"></a><span class="lineno"> 2419</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02420"></a><span class="lineno"> 2420</span> <span class="preprocessor">#define dct_long_mac(out, acc, inq, coeff) \</span></div> -<div class="line"><a name="l02421"></a><span class="lineno"> 2421</span> <span class="preprocessor"> int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \</span></div> -<div class="line"><a name="l02422"></a><span class="lineno"> 2422</span> <span class="preprocessor"> int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff)</span></div> -<div class="line"><a name="l02423"></a><span class="lineno"> 2423</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02424"></a><span class="lineno"> 2424</span> <span class="preprocessor">#define dct_widen(out, inq) \</span></div> -<div class="line"><a name="l02425"></a><span class="lineno"> 2425</span> <span class="preprocessor"> int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \</span></div> -<div class="line"><a name="l02426"></a><span class="lineno"> 2426</span> <span class="preprocessor"> int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12)</span></div> -<div class="line"><a name="l02427"></a><span class="lineno"> 2427</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02428"></a><span class="lineno"> 2428</span> <span class="comment">// wide add</span></div> -<div class="line"><a name="l02429"></a><span class="lineno"> 2429</span> <span class="preprocessor">#define dct_wadd(out, a, b) \</span></div> -<div class="line"><a name="l02430"></a><span class="lineno"> 2430</span> <span class="preprocessor"> int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \</span></div> -<div class="line"><a name="l02431"></a><span class="lineno"> 2431</span> <span class="preprocessor"> int32x4_t out##_h = vaddq_s32(a##_h, b##_h)</span></div> -<div class="line"><a name="l02432"></a><span class="lineno"> 2432</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02433"></a><span class="lineno"> 2433</span> <span class="comment">// wide sub</span></div> -<div class="line"><a name="l02434"></a><span class="lineno"> 2434</span> <span class="preprocessor">#define dct_wsub(out, a, b) \</span></div> -<div class="line"><a name="l02435"></a><span class="lineno"> 2435</span> <span class="preprocessor"> int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \</span></div> -<div class="line"><a name="l02436"></a><span class="lineno"> 2436</span> <span class="preprocessor"> int32x4_t out##_h = vsubq_s32(a##_h, b##_h)</span></div> -<div class="line"><a name="l02437"></a><span class="lineno"> 2437</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02438"></a><span class="lineno"> 2438</span> <span class="comment">// butterfly a/b, then shift using "shiftop" by "s" and pack</span></div> -<div class="line"><a name="l02439"></a><span class="lineno"> 2439</span> <span class="preprocessor">#define dct_bfly32o(out0,out1, a,b,shiftop,s) \</span></div> -<div class="line"><a name="l02440"></a><span class="lineno"> 2440</span> <span class="preprocessor"> { \</span></div> -<div class="line"><a name="l02441"></a><span class="lineno"> 2441</span> <span class="preprocessor"> dct_wadd(sum, a, b); \</span></div> -<div class="line"><a name="l02442"></a><span class="lineno"> 2442</span> <span class="preprocessor"> dct_wsub(dif, a, b); \</span></div> -<div class="line"><a name="l02443"></a><span class="lineno"> 2443</span> <span class="preprocessor"> out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \</span></div> -<div class="line"><a name="l02444"></a><span class="lineno"> 2444</span> <span class="preprocessor"> out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \</span></div> -<div class="line"><a name="l02445"></a><span class="lineno"> 2445</span> <span class="preprocessor"> }</span></div> -<div class="line"><a name="l02446"></a><span class="lineno"> 2446</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02447"></a><span class="lineno"> 2447</span> <span class="preprocessor">#define dct_pass(shiftop, shift) \</span></div> -<div class="line"><a name="l02448"></a><span class="lineno"> 2448</span> <span class="preprocessor"> { \</span></div> -<div class="line"><a name="l02449"></a><span class="lineno"> 2449</span> <span class="preprocessor"> </span><span class="comment">/* even part */</span><span class="preprocessor"> \</span></div> -<div class="line"><a name="l02450"></a><span class="lineno"> 2450</span> <span class="preprocessor"> int16x8_t sum26 = vaddq_s16(row2, row6); \</span></div> -<div class="line"><a name="l02451"></a><span class="lineno"> 2451</span> <span class="preprocessor"> dct_long_mul(p1e, sum26, rot0_0); \</span></div> -<div class="line"><a name="l02452"></a><span class="lineno"> 2452</span> <span class="preprocessor"> dct_long_mac(t2e, p1e, row6, rot0_1); \</span></div> -<div class="line"><a name="l02453"></a><span class="lineno"> 2453</span> <span class="preprocessor"> dct_long_mac(t3e, p1e, row2, rot0_2); \</span></div> -<div class="line"><a name="l02454"></a><span class="lineno"> 2454</span> <span class="preprocessor"> int16x8_t sum04 = vaddq_s16(row0, row4); \</span></div> -<div class="line"><a name="l02455"></a><span class="lineno"> 2455</span> <span class="preprocessor"> int16x8_t dif04 = vsubq_s16(row0, row4); \</span></div> -<div class="line"><a name="l02456"></a><span class="lineno"> 2456</span> <span class="preprocessor"> dct_widen(t0e, sum04); \</span></div> -<div class="line"><a name="l02457"></a><span class="lineno"> 2457</span> <span class="preprocessor"> dct_widen(t1e, dif04); \</span></div> -<div class="line"><a name="l02458"></a><span class="lineno"> 2458</span> <span class="preprocessor"> dct_wadd(x0, t0e, t3e); \</span></div> -<div class="line"><a name="l02459"></a><span class="lineno"> 2459</span> <span class="preprocessor"> dct_wsub(x3, t0e, t3e); \</span></div> -<div class="line"><a name="l02460"></a><span class="lineno"> 2460</span> <span class="preprocessor"> dct_wadd(x1, t1e, t2e); \</span></div> -<div class="line"><a name="l02461"></a><span class="lineno"> 2461</span> <span class="preprocessor"> dct_wsub(x2, t1e, t2e); \</span></div> -<div class="line"><a name="l02462"></a><span class="lineno"> 2462</span> <span class="preprocessor"> </span><span class="comment">/* odd part */</span><span class="preprocessor"> \</span></div> -<div class="line"><a name="l02463"></a><span class="lineno"> 2463</span> <span class="preprocessor"> int16x8_t sum15 = vaddq_s16(row1, row5); \</span></div> -<div class="line"><a name="l02464"></a><span class="lineno"> 2464</span> <span class="preprocessor"> int16x8_t sum17 = vaddq_s16(row1, row7); \</span></div> -<div class="line"><a name="l02465"></a><span class="lineno"> 2465</span> <span class="preprocessor"> int16x8_t sum35 = vaddq_s16(row3, row5); \</span></div> -<div class="line"><a name="l02466"></a><span class="lineno"> 2466</span> <span class="preprocessor"> int16x8_t sum37 = vaddq_s16(row3, row7); \</span></div> -<div class="line"><a name="l02467"></a><span class="lineno"> 2467</span> <span class="preprocessor"> int16x8_t sumodd = vaddq_s16(sum17, sum35); \</span></div> -<div class="line"><a name="l02468"></a><span class="lineno"> 2468</span> <span class="preprocessor"> dct_long_mul(p5o, sumodd, rot1_0); \</span></div> -<div class="line"><a name="l02469"></a><span class="lineno"> 2469</span> <span class="preprocessor"> dct_long_mac(p1o, p5o, sum17, rot1_1); \</span></div> -<div class="line"><a name="l02470"></a><span class="lineno"> 2470</span> <span class="preprocessor"> dct_long_mac(p2o, p5o, sum35, rot1_2); \</span></div> -<div class="line"><a name="l02471"></a><span class="lineno"> 2471</span> <span class="preprocessor"> dct_long_mul(p3o, sum37, rot2_0); \</span></div> -<div class="line"><a name="l02472"></a><span class="lineno"> 2472</span> <span class="preprocessor"> dct_long_mul(p4o, sum15, rot2_1); \</span></div> -<div class="line"><a name="l02473"></a><span class="lineno"> 2473</span> <span class="preprocessor"> dct_wadd(sump13o, p1o, p3o); \</span></div> -<div class="line"><a name="l02474"></a><span class="lineno"> 2474</span> <span class="preprocessor"> dct_wadd(sump24o, p2o, p4o); \</span></div> -<div class="line"><a name="l02475"></a><span class="lineno"> 2475</span> <span class="preprocessor"> dct_wadd(sump23o, p2o, p3o); \</span></div> -<div class="line"><a name="l02476"></a><span class="lineno"> 2476</span> <span class="preprocessor"> dct_wadd(sump14o, p1o, p4o); \</span></div> -<div class="line"><a name="l02477"></a><span class="lineno"> 2477</span> <span class="preprocessor"> dct_long_mac(x4, sump13o, row7, rot3_0); \</span></div> -<div class="line"><a name="l02478"></a><span class="lineno"> 2478</span> <span class="preprocessor"> dct_long_mac(x5, sump24o, row5, rot3_1); \</span></div> -<div class="line"><a name="l02479"></a><span class="lineno"> 2479</span> <span class="preprocessor"> dct_long_mac(x6, sump23o, row3, rot3_2); \</span></div> -<div class="line"><a name="l02480"></a><span class="lineno"> 2480</span> <span class="preprocessor"> dct_long_mac(x7, sump14o, row1, rot3_3); \</span></div> -<div class="line"><a name="l02481"></a><span class="lineno"> 2481</span> <span class="preprocessor"> dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \</span></div> -<div class="line"><a name="l02482"></a><span class="lineno"> 2482</span> <span class="preprocessor"> dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \</span></div> -<div class="line"><a name="l02483"></a><span class="lineno"> 2483</span> <span class="preprocessor"> dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \</span></div> -<div class="line"><a name="l02484"></a><span class="lineno"> 2484</span> <span class="preprocessor"> dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \</span></div> -<div class="line"><a name="l02485"></a><span class="lineno"> 2485</span> <span class="preprocessor"> }</span></div> -<div class="line"><a name="l02486"></a><span class="lineno"> 2486</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02487"></a><span class="lineno"> 2487</span>  <span class="comment">// load</span></div> -<div class="line"><a name="l02488"></a><span class="lineno"> 2488</span>  row0 = vld1q_s16(data + 0*8);</div> -<div class="line"><a name="l02489"></a><span class="lineno"> 2489</span>  row1 = vld1q_s16(data + 1*8);</div> -<div class="line"><a name="l02490"></a><span class="lineno"> 2490</span>  row2 = vld1q_s16(data + 2*8);</div> -<div class="line"><a name="l02491"></a><span class="lineno"> 2491</span>  row3 = vld1q_s16(data + 3*8);</div> -<div class="line"><a name="l02492"></a><span class="lineno"> 2492</span>  row4 = vld1q_s16(data + 4*8);</div> -<div class="line"><a name="l02493"></a><span class="lineno"> 2493</span>  row5 = vld1q_s16(data + 5*8);</div> -<div class="line"><a name="l02494"></a><span class="lineno"> 2494</span>  row6 = vld1q_s16(data + 6*8);</div> -<div class="line"><a name="l02495"></a><span class="lineno"> 2495</span>  row7 = vld1q_s16(data + 7*8);</div> -<div class="line"><a name="l02496"></a><span class="lineno"> 2496</span> </div> -<div class="line"><a name="l02497"></a><span class="lineno"> 2497</span>  <span class="comment">// add DC bias</span></div> -<div class="line"><a name="l02498"></a><span class="lineno"> 2498</span>  row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0));</div> -<div class="line"><a name="l02499"></a><span class="lineno"> 2499</span> </div> -<div class="line"><a name="l02500"></a><span class="lineno"> 2500</span>  <span class="comment">// column pass</span></div> -<div class="line"><a name="l02501"></a><span class="lineno"> 2501</span>  dct_pass(vrshrn_n_s32, 10);</div> -<div class="line"><a name="l02502"></a><span class="lineno"> 2502</span> </div> -<div class="line"><a name="l02503"></a><span class="lineno"> 2503</span>  <span class="comment">// 16bit 8x8 transpose</span></div> -<div class="line"><a name="l02504"></a><span class="lineno"> 2504</span>  {</div> -<div class="line"><a name="l02505"></a><span class="lineno"> 2505</span> <span class="comment">// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively.</span></div> -<div class="line"><a name="l02506"></a><span class="lineno"> 2506</span> <span class="comment">// whether compilers actually get this is another story, sadly.</span></div> -<div class="line"><a name="l02507"></a><span class="lineno"> 2507</span> <span class="preprocessor">#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; }</span></div> -<div class="line"><a name="l02508"></a><span class="lineno"> 2508</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); }</span></div> -<div class="line"><a name="l02509"></a><span class="lineno"> 2509</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); }</span></div> -<div class="line"><a name="l02510"></a><span class="lineno"> 2510</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02511"></a><span class="lineno"> 2511</span>  <span class="comment">// pass 1</span></div> -<div class="line"><a name="l02512"></a><span class="lineno"> 2512</span>  dct_trn16(row0, row1); <span class="comment">// a0b0a2b2a4b4a6b6</span></div> -<div class="line"><a name="l02513"></a><span class="lineno"> 2513</span>  dct_trn16(row2, row3);</div> -<div class="line"><a name="l02514"></a><span class="lineno"> 2514</span>  dct_trn16(row4, row5);</div> -<div class="line"><a name="l02515"></a><span class="lineno"> 2515</span>  dct_trn16(row6, row7);</div> -<div class="line"><a name="l02516"></a><span class="lineno"> 2516</span> </div> -<div class="line"><a name="l02517"></a><span class="lineno"> 2517</span>  <span class="comment">// pass 2</span></div> -<div class="line"><a name="l02518"></a><span class="lineno"> 2518</span>  dct_trn32(row0, row2); <span class="comment">// a0b0c0d0a4b4c4d4</span></div> -<div class="line"><a name="l02519"></a><span class="lineno"> 2519</span>  dct_trn32(row1, row3);</div> -<div class="line"><a name="l02520"></a><span class="lineno"> 2520</span>  dct_trn32(row4, row6);</div> -<div class="line"><a name="l02521"></a><span class="lineno"> 2521</span>  dct_trn32(row5, row7);</div> -<div class="line"><a name="l02522"></a><span class="lineno"> 2522</span> </div> -<div class="line"><a name="l02523"></a><span class="lineno"> 2523</span>  <span class="comment">// pass 3</span></div> -<div class="line"><a name="l02524"></a><span class="lineno"> 2524</span>  dct_trn64(row0, row4); <span class="comment">// a0b0c0d0e0f0g0h0</span></div> -<div class="line"><a name="l02525"></a><span class="lineno"> 2525</span>  dct_trn64(row1, row5);</div> -<div class="line"><a name="l02526"></a><span class="lineno"> 2526</span>  dct_trn64(row2, row6);</div> -<div class="line"><a name="l02527"></a><span class="lineno"> 2527</span>  dct_trn64(row3, row7);</div> -<div class="line"><a name="l02528"></a><span class="lineno"> 2528</span> </div> -<div class="line"><a name="l02529"></a><span class="lineno"> 2529</span> <span class="preprocessor">#undef dct_trn16</span></div> -<div class="line"><a name="l02530"></a><span class="lineno"> 2530</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn32</span></div> -<div class="line"><a name="l02531"></a><span class="lineno"> 2531</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn64</span></div> -<div class="line"><a name="l02532"></a><span class="lineno"> 2532</span> <span class="preprocessor"></span> }</div> -<div class="line"><a name="l02533"></a><span class="lineno"> 2533</span> </div> -<div class="line"><a name="l02534"></a><span class="lineno"> 2534</span>  <span class="comment">// row pass</span></div> -<div class="line"><a name="l02535"></a><span class="lineno"> 2535</span>  <span class="comment">// vrshrn_n_s32 only supports shifts up to 16, we need</span></div> -<div class="line"><a name="l02536"></a><span class="lineno"> 2536</span>  <span class="comment">// 17. so do a non-rounding shift of 16 first then follow</span></div> -<div class="line"><a name="l02537"></a><span class="lineno"> 2537</span>  <span class="comment">// up with a rounding shift by 1.</span></div> -<div class="line"><a name="l02538"></a><span class="lineno"> 2538</span>  dct_pass(vshrn_n_s32, 16);</div> -<div class="line"><a name="l02539"></a><span class="lineno"> 2539</span> </div> -<div class="line"><a name="l02540"></a><span class="lineno"> 2540</span>  {</div> -<div class="line"><a name="l02541"></a><span class="lineno"> 2541</span>  <span class="comment">// pack and round</span></div> -<div class="line"><a name="l02542"></a><span class="lineno"> 2542</span>  uint8x8_t p0 = vqrshrun_n_s16(row0, 1);</div> -<div class="line"><a name="l02543"></a><span class="lineno"> 2543</span>  uint8x8_t p1 = vqrshrun_n_s16(row1, 1);</div> -<div class="line"><a name="l02544"></a><span class="lineno"> 2544</span>  uint8x8_t p2 = vqrshrun_n_s16(row2, 1);</div> -<div class="line"><a name="l02545"></a><span class="lineno"> 2545</span>  uint8x8_t p3 = vqrshrun_n_s16(row3, 1);</div> -<div class="line"><a name="l02546"></a><span class="lineno"> 2546</span>  uint8x8_t p4 = vqrshrun_n_s16(row4, 1);</div> -<div class="line"><a name="l02547"></a><span class="lineno"> 2547</span>  uint8x8_t p5 = vqrshrun_n_s16(row5, 1);</div> -<div class="line"><a name="l02548"></a><span class="lineno"> 2548</span>  uint8x8_t p6 = vqrshrun_n_s16(row6, 1);</div> -<div class="line"><a name="l02549"></a><span class="lineno"> 2549</span>  uint8x8_t p7 = vqrshrun_n_s16(row7, 1);</div> -<div class="line"><a name="l02550"></a><span class="lineno"> 2550</span> </div> -<div class="line"><a name="l02551"></a><span class="lineno"> 2551</span>  <span class="comment">// again, these can translate into one instruction, but often don't.</span></div> -<div class="line"><a name="l02552"></a><span class="lineno"> 2552</span> <span class="preprocessor">#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; }</span></div> -<div class="line"><a name="l02553"></a><span class="lineno"> 2553</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); }</span></div> -<div class="line"><a name="l02554"></a><span class="lineno"> 2554</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); }</span></div> -<div class="line"><a name="l02555"></a><span class="lineno"> 2555</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02556"></a><span class="lineno"> 2556</span>  <span class="comment">// sadly can't use interleaved stores here since we only write</span></div> -<div class="line"><a name="l02557"></a><span class="lineno"> 2557</span>  <span class="comment">// 8 bytes to each scan line!</span></div> -<div class="line"><a name="l02558"></a><span class="lineno"> 2558</span> </div> -<div class="line"><a name="l02559"></a><span class="lineno"> 2559</span>  <span class="comment">// 8x8 8-bit transpose pass 1</span></div> -<div class="line"><a name="l02560"></a><span class="lineno"> 2560</span>  dct_trn8_8(p0, p1);</div> -<div class="line"><a name="l02561"></a><span class="lineno"> 2561</span>  dct_trn8_8(p2, p3);</div> -<div class="line"><a name="l02562"></a><span class="lineno"> 2562</span>  dct_trn8_8(p4, p5);</div> -<div class="line"><a name="l02563"></a><span class="lineno"> 2563</span>  dct_trn8_8(p6, p7);</div> -<div class="line"><a name="l02564"></a><span class="lineno"> 2564</span> </div> -<div class="line"><a name="l02565"></a><span class="lineno"> 2565</span>  <span class="comment">// pass 2</span></div> -<div class="line"><a name="l02566"></a><span class="lineno"> 2566</span>  dct_trn8_16(p0, p2);</div> -<div class="line"><a name="l02567"></a><span class="lineno"> 2567</span>  dct_trn8_16(p1, p3);</div> -<div class="line"><a name="l02568"></a><span class="lineno"> 2568</span>  dct_trn8_16(p4, p6);</div> -<div class="line"><a name="l02569"></a><span class="lineno"> 2569</span>  dct_trn8_16(p5, p7);</div> -<div class="line"><a name="l02570"></a><span class="lineno"> 2570</span> </div> -<div class="line"><a name="l02571"></a><span class="lineno"> 2571</span>  <span class="comment">// pass 3</span></div> -<div class="line"><a name="l02572"></a><span class="lineno"> 2572</span>  dct_trn8_32(p0, p4);</div> -<div class="line"><a name="l02573"></a><span class="lineno"> 2573</span>  dct_trn8_32(p1, p5);</div> -<div class="line"><a name="l02574"></a><span class="lineno"> 2574</span>  dct_trn8_32(p2, p6);</div> -<div class="line"><a name="l02575"></a><span class="lineno"> 2575</span>  dct_trn8_32(p3, p7);</div> -<div class="line"><a name="l02576"></a><span class="lineno"> 2576</span> </div> -<div class="line"><a name="l02577"></a><span class="lineno"> 2577</span>  <span class="comment">// store</span></div> -<div class="line"><a name="l02578"></a><span class="lineno"> 2578</span>  vst1_u8(out, p0); out += out_stride;</div> -<div class="line"><a name="l02579"></a><span class="lineno"> 2579</span>  vst1_u8(out, p1); out += out_stride;</div> -<div class="line"><a name="l02580"></a><span class="lineno"> 2580</span>  vst1_u8(out, p2); out += out_stride;</div> -<div class="line"><a name="l02581"></a><span class="lineno"> 2581</span>  vst1_u8(out, p3); out += out_stride;</div> -<div class="line"><a name="l02582"></a><span class="lineno"> 2582</span>  vst1_u8(out, p4); out += out_stride;</div> -<div class="line"><a name="l02583"></a><span class="lineno"> 2583</span>  vst1_u8(out, p5); out += out_stride;</div> -<div class="line"><a name="l02584"></a><span class="lineno"> 2584</span>  vst1_u8(out, p6); out += out_stride;</div> -<div class="line"><a name="l02585"></a><span class="lineno"> 2585</span>  vst1_u8(out, p7);</div> -<div class="line"><a name="l02586"></a><span class="lineno"> 2586</span> </div> -<div class="line"><a name="l02587"></a><span class="lineno"> 2587</span> <span class="preprocessor">#undef dct_trn8_8</span></div> -<div class="line"><a name="l02588"></a><span class="lineno"> 2588</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn8_16</span></div> -<div class="line"><a name="l02589"></a><span class="lineno"> 2589</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn8_32</span></div> -<div class="line"><a name="l02590"></a><span class="lineno"> 2590</span> <span class="preprocessor"></span> }</div> -<div class="line"><a name="l02591"></a><span class="lineno"> 2591</span> </div> -<div class="line"><a name="l02592"></a><span class="lineno"> 2592</span> <span class="preprocessor">#undef dct_long_mul</span></div> -<div class="line"><a name="l02593"></a><span class="lineno"> 2593</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_long_mac</span></div> -<div class="line"><a name="l02594"></a><span class="lineno"> 2594</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_widen</span></div> -<div class="line"><a name="l02595"></a><span class="lineno"> 2595</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wadd</span></div> -<div class="line"><a name="l02596"></a><span class="lineno"> 2596</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wsub</span></div> -<div class="line"><a name="l02597"></a><span class="lineno"> 2597</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_bfly32o</span></div> -<div class="line"><a name="l02598"></a><span class="lineno"> 2598</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_pass</span></div> -<div class="line"><a name="l02599"></a><span class="lineno"> 2599</span> <span class="preprocessor"></span>}</div> -<div class="line"><a name="l02600"></a><span class="lineno"> 2600</span> </div> -<div class="line"><a name="l02601"></a><span class="lineno"> 2601</span> <span class="preprocessor">#endif // STBI_NEON</span></div> -<div class="line"><a name="l02602"></a><span class="lineno"> 2602</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02603"></a><span class="lineno"> 2603</span> <span class="preprocessor">#define STBI__MARKER_none 0xff</span></div> -<div class="line"><a name="l02604"></a><span class="lineno"> 2604</span> <span class="preprocessor"></span><span class="comment">// if there's a pending marker from the entropy stream, return that</span></div> -<div class="line"><a name="l02605"></a><span class="lineno"> 2605</span> <span class="comment">// otherwise, fetch from the stream and get a marker. if there's no</span></div> -<div class="line"><a name="l02606"></a><span class="lineno"> 2606</span> <span class="comment">// marker, return 0xff, which is never a valid marker value</span></div> -<div class="line"><a name="l02607"></a><span class="lineno"> 2607</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__get_marker(stbi__jpeg *j)</div> -<div class="line"><a name="l02608"></a><span class="lineno"> 2608</span> {</div> -<div class="line"><a name="l02609"></a><span class="lineno"> 2609</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> x;</div> -<div class="line"><a name="l02610"></a><span class="lineno"> 2610</span>  <span class="keywordflow">if</span> (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; <span class="keywordflow">return</span> x; }</div> -<div class="line"><a name="l02611"></a><span class="lineno"> 2611</span>  x = stbi__get8(j->s);</div> -<div class="line"><a name="l02612"></a><span class="lineno"> 2612</span>  <span class="keywordflow">if</span> (x != 0xff) <span class="keywordflow">return</span> STBI__MARKER_none;</div> -<div class="line"><a name="l02613"></a><span class="lineno"> 2613</span>  <span class="keywordflow">while</span> (x == 0xff)</div> -<div class="line"><a name="l02614"></a><span class="lineno"> 2614</span>  x = stbi__get8(j->s); <span class="comment">// consume repeated 0xff fill bytes</span></div> -<div class="line"><a name="l02615"></a><span class="lineno"> 2615</span>  <span class="keywordflow">return</span> x;</div> -<div class="line"><a name="l02616"></a><span class="lineno"> 2616</span> }</div> +<div class="line"><a name="l02420"></a><span class="lineno"> 2420</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__idct_block(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64])</div> +<div class="line"><a name="l02421"></a><span class="lineno"> 2421</span> {</div> +<div class="line"><a name="l02422"></a><span class="lineno"> 2422</span>  <span class="keywordtype">int</span> i, val[64], *v = val;</div> +<div class="line"><a name="l02423"></a><span class="lineno"> 2423</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *o;</div> +<div class="line"><a name="l02424"></a><span class="lineno"> 2424</span>  <span class="keywordtype">short</span> *d = data;</div> +<div class="line"><a name="l02425"></a><span class="lineno"> 2425</span> </div> +<div class="line"><a name="l02426"></a><span class="lineno"> 2426</span>  <span class="comment">// columns</span></div> +<div class="line"><a name="l02427"></a><span class="lineno"> 2427</span>  <span class="keywordflow">for</span> (i = 0; i < 8; ++i, ++d, ++v) {</div> +<div class="line"><a name="l02428"></a><span class="lineno"> 2428</span>  <span class="comment">// if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing</span></div> +<div class="line"><a name="l02429"></a><span class="lineno"> 2429</span>  <span class="keywordflow">if</span> (d[8] == 0 && d[16] == 0 && d[24] == 0 && d[32] == 0 && d[40] == 0 &&</div> +<div class="line"><a name="l02430"></a><span class="lineno"> 2430</span>  d[48] == 0 && d[56] == 0) {</div> +<div class="line"><a name="l02431"></a><span class="lineno"> 2431</span>  <span class="comment">// no shortcut 0 seconds</span></div> +<div class="line"><a name="l02432"></a><span class="lineno"> 2432</span>  <span class="comment">// (1|2|3|4|5|6|7)==0 0 seconds</span></div> +<div class="line"><a name="l02433"></a><span class="lineno"> 2433</span>  <span class="comment">// all separate -0.047 seconds</span></div> +<div class="line"><a name="l02434"></a><span class="lineno"> 2434</span>  <span class="comment">// 1 && 2|3 && 4|5 && 6|7: -0.047 seconds</span></div> +<div class="line"><a name="l02435"></a><span class="lineno"> 2435</span>  <span class="keywordtype">int</span> dcterm = d[0] << 2;</div> +<div class="line"><a name="l02436"></a><span class="lineno"> 2436</span>  v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] =</div> +<div class="line"><a name="l02437"></a><span class="lineno"> 2437</span>  dcterm;</div> +<div class="line"><a name="l02438"></a><span class="lineno"> 2438</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l02439"></a><span class="lineno"> 2439</span>  STBI__IDCT_1D(d[0], d[8], d[16], d[24], d[32], d[40], d[48], d[56])</div> +<div class="line"><a name="l02440"></a><span class="lineno"> 2440</span>  <span class="comment">// constants scaled things up by 1<<12; let's bring them back</span></div> +<div class="line"><a name="l02441"></a><span class="lineno"> 2441</span>  <span class="comment">// down, but keep 2 extra bits of precision</span></div> +<div class="line"><a name="l02442"></a><span class="lineno"> 2442</span>  x0 += 512;</div> +<div class="line"><a name="l02443"></a><span class="lineno"> 2443</span>  x1 += 512;</div> +<div class="line"><a name="l02444"></a><span class="lineno"> 2444</span>  x2 += 512;</div> +<div class="line"><a name="l02445"></a><span class="lineno"> 2445</span>  x3 += 512;</div> +<div class="line"><a name="l02446"></a><span class="lineno"> 2446</span>  v[0] = (x0 + t3) >> 10;</div> +<div class="line"><a name="l02447"></a><span class="lineno"> 2447</span>  v[56] = (x0 - t3) >> 10;</div> +<div class="line"><a name="l02448"></a><span class="lineno"> 2448</span>  v[8] = (x1 + t2) >> 10;</div> +<div class="line"><a name="l02449"></a><span class="lineno"> 2449</span>  v[48] = (x1 - t2) >> 10;</div> +<div class="line"><a name="l02450"></a><span class="lineno"> 2450</span>  v[16] = (x2 + t1) >> 10;</div> +<div class="line"><a name="l02451"></a><span class="lineno"> 2451</span>  v[40] = (x2 - t1) >> 10;</div> +<div class="line"><a name="l02452"></a><span class="lineno"> 2452</span>  v[24] = (x3 + t0) >> 10;</div> +<div class="line"><a name="l02453"></a><span class="lineno"> 2453</span>  v[32] = (x3 - t0) >> 10;</div> +<div class="line"><a name="l02454"></a><span class="lineno"> 2454</span>  }</div> +<div class="line"><a name="l02455"></a><span class="lineno"> 2455</span>  }</div> +<div class="line"><a name="l02456"></a><span class="lineno"> 2456</span> </div> +<div class="line"><a name="l02457"></a><span class="lineno"> 2457</span>  for (i = 0, v = val, o = out; i < 8; ++i, v += 8, o += out_stride) {</div> +<div class="line"><a name="l02458"></a><span class="lineno"> 2458</span>  <span class="comment">// no fast case since the first 1D IDCT spread components out</span></div> +<div class="line"><a name="l02459"></a><span class="lineno"> 2459</span>  STBI__IDCT_1D(v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7])</div> +<div class="line"><a name="l02460"></a><span class="lineno"> 2460</span>  <span class="comment">// constants scaled things up by 1<<12, plus we had 1<<2 from first</span></div> +<div class="line"><a name="l02461"></a><span class="lineno"> 2461</span>  <span class="comment">// loop, plus horizontal and vertical each scale by sqrt(8) so together</span></div> +<div class="line"><a name="l02462"></a><span class="lineno"> 2462</span>  <span class="comment">// we've got an extra 1<<3, so 1<<17 total we need to remove.</span></div> +<div class="line"><a name="l02463"></a><span class="lineno"> 2463</span>  <span class="comment">// so we want to round that, which means adding 0.5 * 1<<17,</span></div> +<div class="line"><a name="l02464"></a><span class="lineno"> 2464</span>  <span class="comment">// aka 65536. Also, we'll end up with -128 to 127 that we want</span></div> +<div class="line"><a name="l02465"></a><span class="lineno"> 2465</span>  <span class="comment">// to encode as 0..255 by adding 128, so we'll add that before the shift</span></div> +<div class="line"><a name="l02466"></a><span class="lineno"> 2466</span>  x0 += 65536 + (128 << 17);</div> +<div class="line"><a name="l02467"></a><span class="lineno"> 2467</span>  x1 += 65536 + (128 << 17);</div> +<div class="line"><a name="l02468"></a><span class="lineno"> 2468</span>  x2 += 65536 + (128 << 17);</div> +<div class="line"><a name="l02469"></a><span class="lineno"> 2469</span>  x3 += 65536 + (128 << 17);</div> +<div class="line"><a name="l02470"></a><span class="lineno"> 2470</span>  <span class="comment">// tried computing the shifts into temps, or'ing the temps to see</span></div> +<div class="line"><a name="l02471"></a><span class="lineno"> 2471</span>  <span class="comment">// if any were out of range, but that was slower</span></div> +<div class="line"><a name="l02472"></a><span class="lineno"> 2472</span>  o[0] = stbi__clamp((x0 + t3) >> 17);</div> +<div class="line"><a name="l02473"></a><span class="lineno"> 2473</span>  o[7] = stbi__clamp((x0 - t3) >> 17);</div> +<div class="line"><a name="l02474"></a><span class="lineno"> 2474</span>  o[1] = stbi__clamp((x1 + t2) >> 17);</div> +<div class="line"><a name="l02475"></a><span class="lineno"> 2475</span>  o[6] = stbi__clamp((x1 - t2) >> 17);</div> +<div class="line"><a name="l02476"></a><span class="lineno"> 2476</span>  o[2] = stbi__clamp((x2 + t1) >> 17);</div> +<div class="line"><a name="l02477"></a><span class="lineno"> 2477</span>  o[5] = stbi__clamp((x2 - t1) >> 17);</div> +<div class="line"><a name="l02478"></a><span class="lineno"> 2478</span>  o[3] = stbi__clamp((x3 + t0) >> 17);</div> +<div class="line"><a name="l02479"></a><span class="lineno"> 2479</span>  o[4] = stbi__clamp((x3 - t0) >> 17);</div> +<div class="line"><a name="l02480"></a><span class="lineno"> 2480</span>  }</div> +<div class="line"><a name="l02481"></a><span class="lineno"> 2481</span> }</div> +<div class="line"><a name="l02482"></a><span class="lineno"> 2482</span> </div> +<div class="line"><a name="l02483"></a><span class="lineno"> 2483</span> <span class="preprocessor">#ifdef STBI_SSE2</span></div> +<div class="line"><a name="l02484"></a><span class="lineno"> 2484</span> <span class="preprocessor"></span><span class="comment">// sse2 integer IDCT. not the fastest possible implementation but it</span></div> +<div class="line"><a name="l02485"></a><span class="lineno"> 2485</span> <span class="comment">// produces bit-identical results to the generic C version so it's</span></div> +<div class="line"><a name="l02486"></a><span class="lineno"> 2486</span> <span class="comment">// fully "transparent".</span></div> +<div class="line"><a name="l02487"></a><span class="lineno"> 2487</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__idct_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64])</div> +<div class="line"><a name="l02488"></a><span class="lineno"> 2488</span> {</div> +<div class="line"><a name="l02489"></a><span class="lineno"> 2489</span>  <span class="comment">// This is constructed to match our regular (generic) integer IDCT exactly.</span></div> +<div class="line"><a name="l02490"></a><span class="lineno"> 2490</span>  __m128i row0, row1, row2, row3, row4, row5, row6, row7;</div> +<div class="line"><a name="l02491"></a><span class="lineno"> 2491</span>  __m128i tmp;</div> +<div class="line"><a name="l02492"></a><span class="lineno"> 2492</span> </div> +<div class="line"><a name="l02493"></a><span class="lineno"> 2493</span> <span class="comment">// dot product constant: even elems=x, odd elems=y</span></div> +<div class="line"><a name="l02494"></a><span class="lineno"> 2494</span> <span class="preprocessor">#define dct_const(x, y) _mm_setr_epi16((x), (y), (x), (y), (x), (y), (x), (y))</span></div> +<div class="line"><a name="l02495"></a><span class="lineno"> 2495</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02496"></a><span class="lineno"> 2496</span> <span class="comment">// out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit)</span></div> +<div class="line"><a name="l02497"></a><span class="lineno"> 2497</span> <span class="comment">// out(1) = c1[even]*x + c1[odd]*y</span></div> +<div class="line"><a name="l02498"></a><span class="lineno"> 2498</span> <span class="preprocessor">#define dct_rot(out0, out1, x, y, c0, c1) \</span></div> +<div class="line"><a name="l02499"></a><span class="lineno"> 2499</span> <span class="preprocessor"> __m128i c0##lo = _mm_unpacklo_epi16((x), (y)); \</span></div> +<div class="line"><a name="l02500"></a><span class="lineno"> 2500</span> <span class="preprocessor"> __m128i c0##hi = _mm_unpackhi_epi16((x), (y)); \</span></div> +<div class="line"><a name="l02501"></a><span class="lineno"> 2501</span> <span class="preprocessor"> __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \</span></div> +<div class="line"><a name="l02502"></a><span class="lineno"> 2502</span> <span class="preprocessor"> __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \</span></div> +<div class="line"><a name="l02503"></a><span class="lineno"> 2503</span> <span class="preprocessor"> __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \</span></div> +<div class="line"><a name="l02504"></a><span class="lineno"> 2504</span> <span class="preprocessor"> __m128i out1##_h = _mm_madd_epi16(c0##hi, c1)</span></div> +<div class="line"><a name="l02505"></a><span class="lineno"> 2505</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02506"></a><span class="lineno"> 2506</span> <span class="comment">// out = in << 12 (in 16-bit, out 32-bit)</span></div> +<div class="line"><a name="l02507"></a><span class="lineno"> 2507</span> <span class="preprocessor">#define dct_widen(out, in) \</span></div> +<div class="line"><a name="l02508"></a><span class="lineno"> 2508</span> <span class="preprocessor"> __m128i out##_l = \</span></div> +<div class="line"><a name="l02509"></a><span class="lineno"> 2509</span> <span class="preprocessor"> _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \</span></div> +<div class="line"><a name="l02510"></a><span class="lineno"> 2510</span> <span class="preprocessor"> __m128i out##_h = \</span></div> +<div class="line"><a name="l02511"></a><span class="lineno"> 2511</span> <span class="preprocessor"> _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4)</span></div> +<div class="line"><a name="l02512"></a><span class="lineno"> 2512</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02513"></a><span class="lineno"> 2513</span> <span class="comment">// wide add</span></div> +<div class="line"><a name="l02514"></a><span class="lineno"> 2514</span> <span class="preprocessor">#define dct_wadd(out, a, b) \</span></div> +<div class="line"><a name="l02515"></a><span class="lineno"> 2515</span> <span class="preprocessor"> __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \</span></div> +<div class="line"><a name="l02516"></a><span class="lineno"> 2516</span> <span class="preprocessor"> __m128i out##_h = _mm_add_epi32(a##_h, b##_h)</span></div> +<div class="line"><a name="l02517"></a><span class="lineno"> 2517</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02518"></a><span class="lineno"> 2518</span> <span class="comment">// wide sub</span></div> +<div class="line"><a name="l02519"></a><span class="lineno"> 2519</span> <span class="preprocessor">#define dct_wsub(out, a, b) \</span></div> +<div class="line"><a name="l02520"></a><span class="lineno"> 2520</span> <span class="preprocessor"> __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \</span></div> +<div class="line"><a name="l02521"></a><span class="lineno"> 2521</span> <span class="preprocessor"> __m128i out##_h = _mm_sub_epi32(a##_h, b##_h)</span></div> +<div class="line"><a name="l02522"></a><span class="lineno"> 2522</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02523"></a><span class="lineno"> 2523</span> <span class="comment">// butterfly a/b, add bias, then shift by "s" and pack</span></div> +<div class="line"><a name="l02524"></a><span class="lineno"> 2524</span> <span class="preprocessor">#define dct_bfly32o(out0, out1, a, b, bias, s) \</span></div> +<div class="line"><a name="l02525"></a><span class="lineno"> 2525</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02526"></a><span class="lineno"> 2526</span> <span class="preprocessor"> __m128i abiased_l = _mm_add_epi32(a##_l, bias); \</span></div> +<div class="line"><a name="l02527"></a><span class="lineno"> 2527</span> <span class="preprocessor"> __m128i abiased_h = _mm_add_epi32(a##_h, bias); \</span></div> +<div class="line"><a name="l02528"></a><span class="lineno"> 2528</span> <span class="preprocessor"> dct_wadd(sum, abiased, b); \</span></div> +<div class="line"><a name="l02529"></a><span class="lineno"> 2529</span> <span class="preprocessor"> dct_wsub(dif, abiased, b); \</span></div> +<div class="line"><a name="l02530"></a><span class="lineno"> 2530</span> <span class="preprocessor"> out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), \</span></div> +<div class="line"><a name="l02531"></a><span class="lineno"> 2531</span> <span class="preprocessor"> _mm_srai_epi32(sum_h, s)); \</span></div> +<div class="line"><a name="l02532"></a><span class="lineno"> 2532</span> <span class="preprocessor"> out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), \</span></div> +<div class="line"><a name="l02533"></a><span class="lineno"> 2533</span> <span class="preprocessor"> _mm_srai_epi32(dif_h, s)); \</span></div> +<div class="line"><a name="l02534"></a><span class="lineno"> 2534</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02535"></a><span class="lineno"> 2535</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02536"></a><span class="lineno"> 2536</span> <span class="comment">// 8-bit interleave step (for transposes)</span></div> +<div class="line"><a name="l02537"></a><span class="lineno"> 2537</span> <span class="preprocessor">#define dct_interleave8(a, b) \</span></div> +<div class="line"><a name="l02538"></a><span class="lineno"> 2538</span> <span class="preprocessor"> tmp = a; \</span></div> +<div class="line"><a name="l02539"></a><span class="lineno"> 2539</span> <span class="preprocessor"> a = _mm_unpacklo_epi8(a, b); \</span></div> +<div class="line"><a name="l02540"></a><span class="lineno"> 2540</span> <span class="preprocessor"> b = _mm_unpackhi_epi8(tmp, b)</span></div> +<div class="line"><a name="l02541"></a><span class="lineno"> 2541</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02542"></a><span class="lineno"> 2542</span> <span class="comment">// 16-bit interleave step (for transposes)</span></div> +<div class="line"><a name="l02543"></a><span class="lineno"> 2543</span> <span class="preprocessor">#define dct_interleave16(a, b) \</span></div> +<div class="line"><a name="l02544"></a><span class="lineno"> 2544</span> <span class="preprocessor"> tmp = a; \</span></div> +<div class="line"><a name="l02545"></a><span class="lineno"> 2545</span> <span class="preprocessor"> a = _mm_unpacklo_epi16(a, b); \</span></div> +<div class="line"><a name="l02546"></a><span class="lineno"> 2546</span> <span class="preprocessor"> b = _mm_unpackhi_epi16(tmp, b)</span></div> +<div class="line"><a name="l02547"></a><span class="lineno"> 2547</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02548"></a><span class="lineno"> 2548</span> <span class="preprocessor">#define dct_pass(bias, shift) \</span></div> +<div class="line"><a name="l02549"></a><span class="lineno"> 2549</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02550"></a><span class="lineno"> 2550</span> <span class="preprocessor"> </span><span class="comment">/* even part */</span><span class="preprocessor"> \</span></div> +<div class="line"><a name="l02551"></a><span class="lineno"> 2551</span> <span class="preprocessor"> dct_rot(t2e, t3e, row2, row6, rot0_0, rot0_1); \</span></div> +<div class="line"><a name="l02552"></a><span class="lineno"> 2552</span> <span class="preprocessor"> __m128i sum04 = _mm_add_epi16(row0, row4); \</span></div> +<div class="line"><a name="l02553"></a><span class="lineno"> 2553</span> <span class="preprocessor"> __m128i dif04 = _mm_sub_epi16(row0, row4); \</span></div> +<div class="line"><a name="l02554"></a><span class="lineno"> 2554</span> <span class="preprocessor"> dct_widen(t0e, sum04); \</span></div> +<div class="line"><a name="l02555"></a><span class="lineno"> 2555</span> <span class="preprocessor"> dct_widen(t1e, dif04); \</span></div> +<div class="line"><a name="l02556"></a><span class="lineno"> 2556</span> <span class="preprocessor"> dct_wadd(x0, t0e, t3e); \</span></div> +<div class="line"><a name="l02557"></a><span class="lineno"> 2557</span> <span class="preprocessor"> dct_wsub(x3, t0e, t3e); \</span></div> +<div class="line"><a name="l02558"></a><span class="lineno"> 2558</span> <span class="preprocessor"> dct_wadd(x1, t1e, t2e); \</span></div> +<div class="line"><a name="l02559"></a><span class="lineno"> 2559</span> <span class="preprocessor"> dct_wsub(x2, t1e, t2e); \</span></div> +<div class="line"><a name="l02560"></a><span class="lineno"> 2560</span> <span class="preprocessor"> </span><span class="comment">/* odd part */</span><span class="preprocessor"> \</span></div> +<div class="line"><a name="l02561"></a><span class="lineno"> 2561</span> <span class="preprocessor"> dct_rot(y0o, y2o, row7, row3, rot2_0, rot2_1); \</span></div> +<div class="line"><a name="l02562"></a><span class="lineno"> 2562</span> <span class="preprocessor"> dct_rot(y1o, y3o, row5, row1, rot3_0, rot3_1); \</span></div> +<div class="line"><a name="l02563"></a><span class="lineno"> 2563</span> <span class="preprocessor"> __m128i sum17 = _mm_add_epi16(row1, row7); \</span></div> +<div class="line"><a name="l02564"></a><span class="lineno"> 2564</span> <span class="preprocessor"> __m128i sum35 = _mm_add_epi16(row3, row5); \</span></div> +<div class="line"><a name="l02565"></a><span class="lineno"> 2565</span> <span class="preprocessor"> dct_rot(y4o, y5o, sum17, sum35, rot1_0, rot1_1); \</span></div> +<div class="line"><a name="l02566"></a><span class="lineno"> 2566</span> <span class="preprocessor"> dct_wadd(x4, y0o, y4o); \</span></div> +<div class="line"><a name="l02567"></a><span class="lineno"> 2567</span> <span class="preprocessor"> dct_wadd(x5, y1o, y5o); \</span></div> +<div class="line"><a name="l02568"></a><span class="lineno"> 2568</span> <span class="preprocessor"> dct_wadd(x6, y2o, y5o); \</span></div> +<div class="line"><a name="l02569"></a><span class="lineno"> 2569</span> <span class="preprocessor"> dct_wadd(x7, y3o, y4o); \</span></div> +<div class="line"><a name="l02570"></a><span class="lineno"> 2570</span> <span class="preprocessor"> dct_bfly32o(row0, row7, x0, x7, bias, shift); \</span></div> +<div class="line"><a name="l02571"></a><span class="lineno"> 2571</span> <span class="preprocessor"> dct_bfly32o(row1, row6, x1, x6, bias, shift); \</span></div> +<div class="line"><a name="l02572"></a><span class="lineno"> 2572</span> <span class="preprocessor"> dct_bfly32o(row2, row5, x2, x5, bias, shift); \</span></div> +<div class="line"><a name="l02573"></a><span class="lineno"> 2573</span> <span class="preprocessor"> dct_bfly32o(row3, row4, x3, x4, bias, shift); \</span></div> +<div class="line"><a name="l02574"></a><span class="lineno"> 2574</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02575"></a><span class="lineno"> 2575</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02576"></a><span class="lineno"> 2576</span>  __m128i rot0_0 =</div> +<div class="line"><a name="l02577"></a><span class="lineno"> 2577</span>  dct_const(stbi__f2f(0.5411961f),</div> +<div class="line"><a name="l02578"></a><span class="lineno"> 2578</span>  stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f));</div> +<div class="line"><a name="l02579"></a><span class="lineno"> 2579</span>  __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f(0.765366865f),</div> +<div class="line"><a name="l02580"></a><span class="lineno"> 2580</span>  stbi__f2f(0.5411961f));</div> +<div class="line"><a name="l02581"></a><span class="lineno"> 2581</span>  __m128i rot1_0 =</div> +<div class="line"><a name="l02582"></a><span class="lineno"> 2582</span>  dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f),</div> +<div class="line"><a name="l02583"></a><span class="lineno"> 2583</span>  stbi__f2f(1.175875602f));</div> +<div class="line"><a name="l02584"></a><span class="lineno"> 2584</span>  __m128i rot1_1 =</div> +<div class="line"><a name="l02585"></a><span class="lineno"> 2585</span>  dct_const(stbi__f2f(1.175875602f),</div> +<div class="line"><a name="l02586"></a><span class="lineno"> 2586</span>  stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f));</div> +<div class="line"><a name="l02587"></a><span class="lineno"> 2587</span>  __m128i rot2_0 =</div> +<div class="line"><a name="l02588"></a><span class="lineno"> 2588</span>  dct_const(stbi__f2f(-1.961570560f) + stbi__f2f(0.298631336f),</div> +<div class="line"><a name="l02589"></a><span class="lineno"> 2589</span>  stbi__f2f(-1.961570560f));</div> +<div class="line"><a name="l02590"></a><span class="lineno"> 2590</span>  __m128i rot2_1 =</div> +<div class="line"><a name="l02591"></a><span class="lineno"> 2591</span>  dct_const(stbi__f2f(-1.961570560f),</div> +<div class="line"><a name="l02592"></a><span class="lineno"> 2592</span>  stbi__f2f(-1.961570560f) + stbi__f2f(3.072711026f));</div> +<div class="line"><a name="l02593"></a><span class="lineno"> 2593</span>  __m128i rot3_0 =</div> +<div class="line"><a name="l02594"></a><span class="lineno"> 2594</span>  dct_const(stbi__f2f(-0.390180644f) + stbi__f2f(2.053119869f),</div> +<div class="line"><a name="l02595"></a><span class="lineno"> 2595</span>  stbi__f2f(-0.390180644f));</div> +<div class="line"><a name="l02596"></a><span class="lineno"> 2596</span>  __m128i rot3_1 =</div> +<div class="line"><a name="l02597"></a><span class="lineno"> 2597</span>  dct_const(stbi__f2f(-0.390180644f),</div> +<div class="line"><a name="l02598"></a><span class="lineno"> 2598</span>  stbi__f2f(-0.390180644f) + stbi__f2f(1.501321110f));</div> +<div class="line"><a name="l02599"></a><span class="lineno"> 2599</span> </div> +<div class="line"><a name="l02600"></a><span class="lineno"> 2600</span>  <span class="comment">// rounding biases in column/row passes, see stbi__idct_block for</span></div> +<div class="line"><a name="l02601"></a><span class="lineno"> 2601</span>  <span class="comment">// explanation.</span></div> +<div class="line"><a name="l02602"></a><span class="lineno"> 2602</span>  __m128i bias_0 = _mm_set1_epi32(512);</div> +<div class="line"><a name="l02603"></a><span class="lineno"> 2603</span>  __m128i bias_1 = _mm_set1_epi32(65536 + (128 << 17));</div> +<div class="line"><a name="l02604"></a><span class="lineno"> 2604</span> </div> +<div class="line"><a name="l02605"></a><span class="lineno"> 2605</span>  <span class="comment">// load</span></div> +<div class="line"><a name="l02606"></a><span class="lineno"> 2606</span>  row0 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 0 * 8));</div> +<div class="line"><a name="l02607"></a><span class="lineno"> 2607</span>  row1 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 1 * 8));</div> +<div class="line"><a name="l02608"></a><span class="lineno"> 2608</span>  row2 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 2 * 8));</div> +<div class="line"><a name="l02609"></a><span class="lineno"> 2609</span>  row3 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 3 * 8));</div> +<div class="line"><a name="l02610"></a><span class="lineno"> 2610</span>  row4 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 4 * 8));</div> +<div class="line"><a name="l02611"></a><span class="lineno"> 2611</span>  row5 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 5 * 8));</div> +<div class="line"><a name="l02612"></a><span class="lineno"> 2612</span>  row6 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 6 * 8));</div> +<div class="line"><a name="l02613"></a><span class="lineno"> 2613</span>  row7 = _mm_load_si128((<span class="keyword">const</span> __m128i *)(data + 7 * 8));</div> +<div class="line"><a name="l02614"></a><span class="lineno"> 2614</span> </div> +<div class="line"><a name="l02615"></a><span class="lineno"> 2615</span>  <span class="comment">// column pass</span></div> +<div class="line"><a name="l02616"></a><span class="lineno"> 2616</span>  dct_pass(bias_0, 10);</div> <div class="line"><a name="l02617"></a><span class="lineno"> 2617</span> </div> -<div class="line"><a name="l02618"></a><span class="lineno"> 2618</span> <span class="comment">// in each scan, we'll have scan_n components, and the order</span></div> -<div class="line"><a name="l02619"></a><span class="lineno"> 2619</span> <span class="comment">// of the components is specified by order[]</span></div> -<div class="line"><a name="l02620"></a><span class="lineno"> 2620</span> <span class="preprocessor">#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7)</span></div> -<div class="line"><a name="l02621"></a><span class="lineno"> 2621</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l02622"></a><span class="lineno"> 2622</span> <span class="comment">// after a restart interval, stbi__jpeg_reset the entropy decoder and</span></div> -<div class="line"><a name="l02623"></a><span class="lineno"> 2623</span> <span class="comment">// the dc prediction</span></div> -<div class="line"><a name="l02624"></a><span class="lineno"> 2624</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__jpeg_reset(stbi__jpeg *j)</div> -<div class="line"><a name="l02625"></a><span class="lineno"> 2625</span> {</div> -<div class="line"><a name="l02626"></a><span class="lineno"> 2626</span>  j->code_bits = 0;</div> -<div class="line"><a name="l02627"></a><span class="lineno"> 2627</span>  j->code_buffer = 0;</div> -<div class="line"><a name="l02628"></a><span class="lineno"> 2628</span>  j->nomore = 0;</div> -<div class="line"><a name="l02629"></a><span class="lineno"> 2629</span>  j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0;</div> -<div class="line"><a name="l02630"></a><span class="lineno"> 2630</span>  j->marker = STBI__MARKER_none;</div> -<div class="line"><a name="l02631"></a><span class="lineno"> 2631</span>  j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff;</div> -<div class="line"><a name="l02632"></a><span class="lineno"> 2632</span>  j->eob_run = 0;</div> -<div class="line"><a name="l02633"></a><span class="lineno"> 2633</span>  <span class="comment">// no more than 1<<31 MCUs if no restart_interal? that's plenty safe,</span></div> -<div class="line"><a name="l02634"></a><span class="lineno"> 2634</span>  <span class="comment">// since we don't even allow 1<<30 pixels</span></div> -<div class="line"><a name="l02635"></a><span class="lineno"> 2635</span> }</div> -<div class="line"><a name="l02636"></a><span class="lineno"> 2636</span> </div> -<div class="line"><a name="l02637"></a><span class="lineno"> 2637</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_entropy_coded_data(stbi__jpeg *z)</div> -<div class="line"><a name="l02638"></a><span class="lineno"> 2638</span> {</div> -<div class="line"><a name="l02639"></a><span class="lineno"> 2639</span>  stbi__jpeg_reset(z);</div> -<div class="line"><a name="l02640"></a><span class="lineno"> 2640</span>  <span class="keywordflow">if</span> (!z->progressive) {</div> -<div class="line"><a name="l02641"></a><span class="lineno"> 2641</span>  <span class="keywordflow">if</span> (z->scan_n == 1) {</div> -<div class="line"><a name="l02642"></a><span class="lineno"> 2642</span>  <span class="keywordtype">int</span> i,j;</div> -<div class="line"><a name="l02643"></a><span class="lineno"> 2643</span>  STBI_SIMD_ALIGN(<span class="keywordtype">short</span>, data[64]);</div> -<div class="line"><a name="l02644"></a><span class="lineno"> 2644</span>  <span class="keywordtype">int</span> n = z->order[0];</div> -<div class="line"><a name="l02645"></a><span class="lineno"> 2645</span>  <span class="comment">// non-interleaved data, we just need to process one block at a time,</span></div> -<div class="line"><a name="l02646"></a><span class="lineno"> 2646</span>  <span class="comment">// in trivial scanline order</span></div> -<div class="line"><a name="l02647"></a><span class="lineno"> 2647</span>  <span class="comment">// number of blocks to do just depends on how many actual "pixels" this</span></div> -<div class="line"><a name="l02648"></a><span class="lineno"> 2648</span>  <span class="comment">// component has, independent of interleaved MCU blocking and such</span></div> -<div class="line"><a name="l02649"></a><span class="lineno"> 2649</span>  <span class="keywordtype">int</span> w = (z->img_comp[n].x+7) >> 3;</div> -<div class="line"><a name="l02650"></a><span class="lineno"> 2650</span>  <span class="keywordtype">int</span> h = (z->img_comp[n].y+7) >> 3;</div> -<div class="line"><a name="l02651"></a><span class="lineno"> 2651</span>  <span class="keywordflow">for</span> (j=0; j < h; ++j) {</div> -<div class="line"><a name="l02652"></a><span class="lineno"> 2652</span>  <span class="keywordflow">for</span> (i=0; i < w; ++i) {</div> -<div class="line"><a name="l02653"></a><span class="lineno"> 2653</span>  <span class="keywordtype">int</span> ha = z->img_comp[n].ha;</div> -<div class="line"><a name="l02654"></a><span class="lineno"> 2654</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02655"></a><span class="lineno"> 2655</span>  z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);</div> -<div class="line"><a name="l02656"></a><span class="lineno"> 2656</span>  <span class="comment">// every data block is an MCU, so countdown the restart interval</span></div> -<div class="line"><a name="l02657"></a><span class="lineno"> 2657</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> -<div class="line"><a name="l02658"></a><span class="lineno"> 2658</span>  <span class="keywordflow">if</span> (z->code_bits < 24) stbi__grow_buffer_unsafe(z);</div> -<div class="line"><a name="l02659"></a><span class="lineno"> 2659</span>  <span class="comment">// if it's NOT a restart, then just bail, so we get corrupt data</span></div> -<div class="line"><a name="l02660"></a><span class="lineno"> 2660</span>  <span class="comment">// rather than no data</span></div> -<div class="line"><a name="l02661"></a><span class="lineno"> 2661</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02662"></a><span class="lineno"> 2662</span>  stbi__jpeg_reset(z);</div> -<div class="line"><a name="l02663"></a><span class="lineno"> 2663</span>  }</div> -<div class="line"><a name="l02664"></a><span class="lineno"> 2664</span>  }</div> -<div class="line"><a name="l02665"></a><span class="lineno"> 2665</span>  }</div> -<div class="line"><a name="l02666"></a><span class="lineno"> 2666</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02667"></a><span class="lineno"> 2667</span>  } <span class="keywordflow">else</span> { <span class="comment">// interleaved</span></div> -<div class="line"><a name="l02668"></a><span class="lineno"> 2668</span>  <span class="keywordtype">int</span> i,j,k,x,y;</div> -<div class="line"><a name="l02669"></a><span class="lineno"> 2669</span>  STBI_SIMD_ALIGN(<span class="keywordtype">short</span>, data[64]);</div> -<div class="line"><a name="l02670"></a><span class="lineno"> 2670</span>  <span class="keywordflow">for</span> (j=0; j < z->img_mcu_y; ++j) {</div> -<div class="line"><a name="l02671"></a><span class="lineno"> 2671</span>  <span class="keywordflow">for</span> (i=0; i < z->img_mcu_x; ++i) {</div> -<div class="line"><a name="l02672"></a><span class="lineno"> 2672</span>  <span class="comment">// scan an interleaved mcu... process scan_n components in order</span></div> -<div class="line"><a name="l02673"></a><span class="lineno"> 2673</span>  <span class="keywordflow">for</span> (k=0; k < z->scan_n; ++k) {</div> -<div class="line"><a name="l02674"></a><span class="lineno"> 2674</span>  <span class="keywordtype">int</span> n = z->order[k];</div> -<div class="line"><a name="l02675"></a><span class="lineno"> 2675</span>  <span class="comment">// scan out an mcu's worth of this component; that's just determined</span></div> -<div class="line"><a name="l02676"></a><span class="lineno"> 2676</span>  <span class="comment">// by the basic H and V specified for the component</span></div> -<div class="line"><a name="l02677"></a><span class="lineno"> 2677</span>  <span class="keywordflow">for</span> (y=0; y < z->img_comp[n].v; ++y) {</div> -<div class="line"><a name="l02678"></a><span class="lineno"> 2678</span>  <span class="keywordflow">for</span> (x=0; x < z->img_comp[n].h; ++x) {</div> -<div class="line"><a name="l02679"></a><span class="lineno"> 2679</span>  <span class="keywordtype">int</span> x2 = (i*z->img_comp[n].h + x)*8;</div> -<div class="line"><a name="l02680"></a><span class="lineno"> 2680</span>  <span class="keywordtype">int</span> y2 = (j*z->img_comp[n].v + y)*8;</div> -<div class="line"><a name="l02681"></a><span class="lineno"> 2681</span>  <span class="keywordtype">int</span> ha = z->img_comp[n].ha;</div> -<div class="line"><a name="l02682"></a><span class="lineno"> 2682</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02683"></a><span class="lineno"> 2683</span>  z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data);</div> -<div class="line"><a name="l02684"></a><span class="lineno"> 2684</span>  }</div> -<div class="line"><a name="l02685"></a><span class="lineno"> 2685</span>  }</div> -<div class="line"><a name="l02686"></a><span class="lineno"> 2686</span>  }</div> -<div class="line"><a name="l02687"></a><span class="lineno"> 2687</span>  <span class="comment">// after all interleaved components, that's an interleaved MCU,</span></div> -<div class="line"><a name="l02688"></a><span class="lineno"> 2688</span>  <span class="comment">// so now count down the restart interval</span></div> -<div class="line"><a name="l02689"></a><span class="lineno"> 2689</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> -<div class="line"><a name="l02690"></a><span class="lineno"> 2690</span>  <span class="keywordflow">if</span> (z->code_bits < 24) stbi__grow_buffer_unsafe(z);</div> -<div class="line"><a name="l02691"></a><span class="lineno"> 2691</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02692"></a><span class="lineno"> 2692</span>  stbi__jpeg_reset(z);</div> -<div class="line"><a name="l02693"></a><span class="lineno"> 2693</span>  }</div> -<div class="line"><a name="l02694"></a><span class="lineno"> 2694</span>  }</div> -<div class="line"><a name="l02695"></a><span class="lineno"> 2695</span>  }</div> -<div class="line"><a name="l02696"></a><span class="lineno"> 2696</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02697"></a><span class="lineno"> 2697</span>  }</div> -<div class="line"><a name="l02698"></a><span class="lineno"> 2698</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02699"></a><span class="lineno"> 2699</span>  <span class="keywordflow">if</span> (z->scan_n == 1) {</div> -<div class="line"><a name="l02700"></a><span class="lineno"> 2700</span>  <span class="keywordtype">int</span> i,j;</div> -<div class="line"><a name="l02701"></a><span class="lineno"> 2701</span>  <span class="keywordtype">int</span> n = z->order[0];</div> -<div class="line"><a name="l02702"></a><span class="lineno"> 2702</span>  <span class="comment">// non-interleaved data, we just need to process one block at a time,</span></div> -<div class="line"><a name="l02703"></a><span class="lineno"> 2703</span>  <span class="comment">// in trivial scanline order</span></div> -<div class="line"><a name="l02704"></a><span class="lineno"> 2704</span>  <span class="comment">// number of blocks to do just depends on how many actual "pixels" this</span></div> -<div class="line"><a name="l02705"></a><span class="lineno"> 2705</span>  <span class="comment">// component has, independent of interleaved MCU blocking and such</span></div> -<div class="line"><a name="l02706"></a><span class="lineno"> 2706</span>  <span class="keywordtype">int</span> w = (z->img_comp[n].x+7) >> 3;</div> -<div class="line"><a name="l02707"></a><span class="lineno"> 2707</span>  <span class="keywordtype">int</span> h = (z->img_comp[n].y+7) >> 3;</div> -<div class="line"><a name="l02708"></a><span class="lineno"> 2708</span>  <span class="keywordflow">for</span> (j=0; j < h; ++j) {</div> -<div class="line"><a name="l02709"></a><span class="lineno"> 2709</span>  <span class="keywordflow">for</span> (i=0; i < w; ++i) {</div> -<div class="line"><a name="l02710"></a><span class="lineno"> 2710</span>  <span class="keywordtype">short</span> *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);</div> -<div class="line"><a name="l02711"></a><span class="lineno"> 2711</span>  <span class="keywordflow">if</span> (z->spec_start == 0) {</div> -<div class="line"><a name="l02712"></a><span class="lineno"> 2712</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))</div> -<div class="line"><a name="l02713"></a><span class="lineno"> 2713</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02714"></a><span class="lineno"> 2714</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02715"></a><span class="lineno"> 2715</span>  <span class="keywordtype">int</span> ha = z->img_comp[n].ha;</div> -<div class="line"><a name="l02716"></a><span class="lineno"> 2716</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha]))</div> -<div class="line"><a name="l02717"></a><span class="lineno"> 2717</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02718"></a><span class="lineno"> 2718</span>  }</div> -<div class="line"><a name="l02719"></a><span class="lineno"> 2719</span>  <span class="comment">// every data block is an MCU, so countdown the restart interval</span></div> -<div class="line"><a name="l02720"></a><span class="lineno"> 2720</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> -<div class="line"><a name="l02721"></a><span class="lineno"> 2721</span>  <span class="keywordflow">if</span> (z->code_bits < 24) stbi__grow_buffer_unsafe(z);</div> -<div class="line"><a name="l02722"></a><span class="lineno"> 2722</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02723"></a><span class="lineno"> 2723</span>  stbi__jpeg_reset(z);</div> -<div class="line"><a name="l02724"></a><span class="lineno"> 2724</span>  }</div> -<div class="line"><a name="l02725"></a><span class="lineno"> 2725</span>  }</div> -<div class="line"><a name="l02726"></a><span class="lineno"> 2726</span>  }</div> -<div class="line"><a name="l02727"></a><span class="lineno"> 2727</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02728"></a><span class="lineno"> 2728</span>  } <span class="keywordflow">else</span> { <span class="comment">// interleaved</span></div> -<div class="line"><a name="l02729"></a><span class="lineno"> 2729</span>  <span class="keywordtype">int</span> i,j,k,x,y;</div> -<div class="line"><a name="l02730"></a><span class="lineno"> 2730</span>  <span class="keywordflow">for</span> (j=0; j < z->img_mcu_y; ++j) {</div> -<div class="line"><a name="l02731"></a><span class="lineno"> 2731</span>  <span class="keywordflow">for</span> (i=0; i < z->img_mcu_x; ++i) {</div> -<div class="line"><a name="l02732"></a><span class="lineno"> 2732</span>  <span class="comment">// scan an interleaved mcu... process scan_n components in order</span></div> -<div class="line"><a name="l02733"></a><span class="lineno"> 2733</span>  <span class="keywordflow">for</span> (k=0; k < z->scan_n; ++k) {</div> -<div class="line"><a name="l02734"></a><span class="lineno"> 2734</span>  <span class="keywordtype">int</span> n = z->order[k];</div> -<div class="line"><a name="l02735"></a><span class="lineno"> 2735</span>  <span class="comment">// scan out an mcu's worth of this component; that's just determined</span></div> -<div class="line"><a name="l02736"></a><span class="lineno"> 2736</span>  <span class="comment">// by the basic H and V specified for the component</span></div> -<div class="line"><a name="l02737"></a><span class="lineno"> 2737</span>  <span class="keywordflow">for</span> (y=0; y < z->img_comp[n].v; ++y) {</div> -<div class="line"><a name="l02738"></a><span class="lineno"> 2738</span>  <span class="keywordflow">for</span> (x=0; x < z->img_comp[n].h; ++x) {</div> -<div class="line"><a name="l02739"></a><span class="lineno"> 2739</span>  <span class="keywordtype">int</span> x2 = (i*z->img_comp[n].h + x);</div> -<div class="line"><a name="l02740"></a><span class="lineno"> 2740</span>  <span class="keywordtype">int</span> y2 = (j*z->img_comp[n].v + y);</div> -<div class="line"><a name="l02741"></a><span class="lineno"> 2741</span>  <span class="keywordtype">short</span> *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w);</div> -<div class="line"><a name="l02742"></a><span class="lineno"> 2742</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n))</div> -<div class="line"><a name="l02743"></a><span class="lineno"> 2743</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02744"></a><span class="lineno"> 2744</span>  }</div> -<div class="line"><a name="l02745"></a><span class="lineno"> 2745</span>  }</div> -<div class="line"><a name="l02746"></a><span class="lineno"> 2746</span>  }</div> -<div class="line"><a name="l02747"></a><span class="lineno"> 2747</span>  <span class="comment">// after all interleaved components, that's an interleaved MCU,</span></div> -<div class="line"><a name="l02748"></a><span class="lineno"> 2748</span>  <span class="comment">// so now count down the restart interval</span></div> -<div class="line"><a name="l02749"></a><span class="lineno"> 2749</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> -<div class="line"><a name="l02750"></a><span class="lineno"> 2750</span>  <span class="keywordflow">if</span> (z->code_bits < 24) stbi__grow_buffer_unsafe(z);</div> -<div class="line"><a name="l02751"></a><span class="lineno"> 2751</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02752"></a><span class="lineno"> 2752</span>  stbi__jpeg_reset(z);</div> -<div class="line"><a name="l02753"></a><span class="lineno"> 2753</span>  }</div> -<div class="line"><a name="l02754"></a><span class="lineno"> 2754</span>  }</div> -<div class="line"><a name="l02755"></a><span class="lineno"> 2755</span>  }</div> -<div class="line"><a name="l02756"></a><span class="lineno"> 2756</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02757"></a><span class="lineno"> 2757</span>  }</div> -<div class="line"><a name="l02758"></a><span class="lineno"> 2758</span>  }</div> -<div class="line"><a name="l02759"></a><span class="lineno"> 2759</span> }</div> -<div class="line"><a name="l02760"></a><span class="lineno"> 2760</span> </div> -<div class="line"><a name="l02761"></a><span class="lineno"> 2761</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__jpeg_dequantize(<span class="keywordtype">short</span> *data, stbi__uint16 *dequant)</div> -<div class="line"><a name="l02762"></a><span class="lineno"> 2762</span> {</div> -<div class="line"><a name="l02763"></a><span class="lineno"> 2763</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l02764"></a><span class="lineno"> 2764</span>  <span class="keywordflow">for</span> (i=0; i < 64; ++i)</div> -<div class="line"><a name="l02765"></a><span class="lineno"> 2765</span>  data[i] *= dequant[i];</div> -<div class="line"><a name="l02766"></a><span class="lineno"> 2766</span> }</div> -<div class="line"><a name="l02767"></a><span class="lineno"> 2767</span> </div> -<div class="line"><a name="l02768"></a><span class="lineno"> 2768</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__jpeg_finish(stbi__jpeg *z)</div> -<div class="line"><a name="l02769"></a><span class="lineno"> 2769</span> {</div> -<div class="line"><a name="l02770"></a><span class="lineno"> 2770</span>  <span class="keywordflow">if</span> (z->progressive) {</div> -<div class="line"><a name="l02771"></a><span class="lineno"> 2771</span>  <span class="comment">// dequantize and idct the data</span></div> -<div class="line"><a name="l02772"></a><span class="lineno"> 2772</span>  <span class="keywordtype">int</span> i,j,n;</div> -<div class="line"><a name="l02773"></a><span class="lineno"> 2773</span>  <span class="keywordflow">for</span> (n=0; n < z->s->img_n; ++n) {</div> -<div class="line"><a name="l02774"></a><span class="lineno"> 2774</span>  <span class="keywordtype">int</span> w = (z->img_comp[n].x+7) >> 3;</div> -<div class="line"><a name="l02775"></a><span class="lineno"> 2775</span>  <span class="keywordtype">int</span> h = (z->img_comp[n].y+7) >> 3;</div> -<div class="line"><a name="l02776"></a><span class="lineno"> 2776</span>  <span class="keywordflow">for</span> (j=0; j < h; ++j) {</div> -<div class="line"><a name="l02777"></a><span class="lineno"> 2777</span>  <span class="keywordflow">for</span> (i=0; i < w; ++i) {</div> -<div class="line"><a name="l02778"></a><span class="lineno"> 2778</span>  <span class="keywordtype">short</span> *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w);</div> -<div class="line"><a name="l02779"></a><span class="lineno"> 2779</span>  stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]);</div> -<div class="line"><a name="l02780"></a><span class="lineno"> 2780</span>  z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data);</div> -<div class="line"><a name="l02781"></a><span class="lineno"> 2781</span>  }</div> -<div class="line"><a name="l02782"></a><span class="lineno"> 2782</span>  }</div> -<div class="line"><a name="l02783"></a><span class="lineno"> 2783</span>  }</div> -<div class="line"><a name="l02784"></a><span class="lineno"> 2784</span>  }</div> -<div class="line"><a name="l02785"></a><span class="lineno"> 2785</span> }</div> -<div class="line"><a name="l02786"></a><span class="lineno"> 2786</span> </div> -<div class="line"><a name="l02787"></a><span class="lineno"> 2787</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__process_marker(stbi__jpeg *z, <span class="keywordtype">int</span> m)</div> -<div class="line"><a name="l02788"></a><span class="lineno"> 2788</span> {</div> -<div class="line"><a name="l02789"></a><span class="lineno"> 2789</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceyage.html#ad5a9307442e5daa8810aff942564a822ad20caec3b48a1eef164cb4ca81ba2587">L</a>;</div> -<div class="line"><a name="l02790"></a><span class="lineno"> 2790</span>  <span class="keywordflow">switch</span> (m) {</div> -<div class="line"><a name="l02791"></a><span class="lineno"> 2791</span>  <span class="keywordflow">case</span> STBI__MARKER_none: <span class="comment">// no marker found</span></div> -<div class="line"><a name="l02792"></a><span class="lineno"> 2792</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"expected marker"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02793"></a><span class="lineno"> 2793</span> </div> -<div class="line"><a name="l02794"></a><span class="lineno"> 2794</span>  <span class="keywordflow">case</span> 0xDD: <span class="comment">// DRI - specify restart interval</span></div> -<div class="line"><a name="l02795"></a><span class="lineno"> 2795</span>  <span class="keywordflow">if</span> (stbi__get16be(z->s) != 4) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DRI len"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02796"></a><span class="lineno"> 2796</span>  z->restart_interval = stbi__get16be(z->s);</div> -<div class="line"><a name="l02797"></a><span class="lineno"> 2797</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l02618"></a><span class="lineno"> 2618</span>  {</div> +<div class="line"><a name="l02619"></a><span class="lineno"> 2619</span>  <span class="comment">// 16bit 8x8 transpose pass 1</span></div> +<div class="line"><a name="l02620"></a><span class="lineno"> 2620</span>  dct_interleave16(row0, row4);</div> +<div class="line"><a name="l02621"></a><span class="lineno"> 2621</span>  dct_interleave16(row1, row5);</div> +<div class="line"><a name="l02622"></a><span class="lineno"> 2622</span>  dct_interleave16(row2, row6);</div> +<div class="line"><a name="l02623"></a><span class="lineno"> 2623</span>  dct_interleave16(row3, row7);</div> +<div class="line"><a name="l02624"></a><span class="lineno"> 2624</span> </div> +<div class="line"><a name="l02625"></a><span class="lineno"> 2625</span>  <span class="comment">// transpose pass 2</span></div> +<div class="line"><a name="l02626"></a><span class="lineno"> 2626</span>  dct_interleave16(row0, row2);</div> +<div class="line"><a name="l02627"></a><span class="lineno"> 2627</span>  dct_interleave16(row1, row3);</div> +<div class="line"><a name="l02628"></a><span class="lineno"> 2628</span>  dct_interleave16(row4, row6);</div> +<div class="line"><a name="l02629"></a><span class="lineno"> 2629</span>  dct_interleave16(row5, row7);</div> +<div class="line"><a name="l02630"></a><span class="lineno"> 2630</span> </div> +<div class="line"><a name="l02631"></a><span class="lineno"> 2631</span>  <span class="comment">// transpose pass 3</span></div> +<div class="line"><a name="l02632"></a><span class="lineno"> 2632</span>  dct_interleave16(row0, row1);</div> +<div class="line"><a name="l02633"></a><span class="lineno"> 2633</span>  dct_interleave16(row2, row3);</div> +<div class="line"><a name="l02634"></a><span class="lineno"> 2634</span>  dct_interleave16(row4, row5);</div> +<div class="line"><a name="l02635"></a><span class="lineno"> 2635</span>  dct_interleave16(row6, row7);</div> +<div class="line"><a name="l02636"></a><span class="lineno"> 2636</span>  }</div> +<div class="line"><a name="l02637"></a><span class="lineno"> 2637</span> </div> +<div class="line"><a name="l02638"></a><span class="lineno"> 2638</span>  <span class="comment">// row pass</span></div> +<div class="line"><a name="l02639"></a><span class="lineno"> 2639</span>  dct_pass(bias_1, 17);</div> +<div class="line"><a name="l02640"></a><span class="lineno"> 2640</span> </div> +<div class="line"><a name="l02641"></a><span class="lineno"> 2641</span>  {</div> +<div class="line"><a name="l02642"></a><span class="lineno"> 2642</span>  <span class="comment">// pack</span></div> +<div class="line"><a name="l02643"></a><span class="lineno"> 2643</span>  __m128i p0 = _mm_packus_epi16(row0, row1); <span class="comment">// a0a1a2a3...a7b0b1b2b3...b7</span></div> +<div class="line"><a name="l02644"></a><span class="lineno"> 2644</span>  __m128i p1 = _mm_packus_epi16(row2, row3);</div> +<div class="line"><a name="l02645"></a><span class="lineno"> 2645</span>  __m128i p2 = _mm_packus_epi16(row4, row5);</div> +<div class="line"><a name="l02646"></a><span class="lineno"> 2646</span>  __m128i p3 = _mm_packus_epi16(row6, row7);</div> +<div class="line"><a name="l02647"></a><span class="lineno"> 2647</span> </div> +<div class="line"><a name="l02648"></a><span class="lineno"> 2648</span>  <span class="comment">// 8bit 8x8 transpose pass 1</span></div> +<div class="line"><a name="l02649"></a><span class="lineno"> 2649</span>  dct_interleave8(p0, p2); <span class="comment">// a0e0a1e1...</span></div> +<div class="line"><a name="l02650"></a><span class="lineno"> 2650</span>  dct_interleave8(p1, p3); <span class="comment">// c0g0c1g1...</span></div> +<div class="line"><a name="l02651"></a><span class="lineno"> 2651</span> </div> +<div class="line"><a name="l02652"></a><span class="lineno"> 2652</span>  <span class="comment">// transpose pass 2</span></div> +<div class="line"><a name="l02653"></a><span class="lineno"> 2653</span>  dct_interleave8(p0, p1); <span class="comment">// a0c0e0g0...</span></div> +<div class="line"><a name="l02654"></a><span class="lineno"> 2654</span>  dct_interleave8(p2, p3); <span class="comment">// b0d0f0h0...</span></div> +<div class="line"><a name="l02655"></a><span class="lineno"> 2655</span> </div> +<div class="line"><a name="l02656"></a><span class="lineno"> 2656</span>  <span class="comment">// transpose pass 3</span></div> +<div class="line"><a name="l02657"></a><span class="lineno"> 2657</span>  dct_interleave8(p0, p2); <span class="comment">// a0b0c0d0...</span></div> +<div class="line"><a name="l02658"></a><span class="lineno"> 2658</span>  dct_interleave8(p1, p3); <span class="comment">// a4b4c4d4...</span></div> +<div class="line"><a name="l02659"></a><span class="lineno"> 2659</span> </div> +<div class="line"><a name="l02660"></a><span class="lineno"> 2660</span>  <span class="comment">// store</span></div> +<div class="line"><a name="l02661"></a><span class="lineno"> 2661</span>  _mm_storel_epi64((__m128i *)out, p0);</div> +<div class="line"><a name="l02662"></a><span class="lineno"> 2662</span>  out += out_stride;</div> +<div class="line"><a name="l02663"></a><span class="lineno"> 2663</span>  _mm_storel_epi64((__m128i *)out, _mm_shuffle_epi32(p0, 0x4e));</div> +<div class="line"><a name="l02664"></a><span class="lineno"> 2664</span>  out += out_stride;</div> +<div class="line"><a name="l02665"></a><span class="lineno"> 2665</span>  _mm_storel_epi64((__m128i *)out, p2);</div> +<div class="line"><a name="l02666"></a><span class="lineno"> 2666</span>  out += out_stride;</div> +<div class="line"><a name="l02667"></a><span class="lineno"> 2667</span>  _mm_storel_epi64((__m128i *)out, _mm_shuffle_epi32(p2, 0x4e));</div> +<div class="line"><a name="l02668"></a><span class="lineno"> 2668</span>  out += out_stride;</div> +<div class="line"><a name="l02669"></a><span class="lineno"> 2669</span>  _mm_storel_epi64((__m128i *)out, p1);</div> +<div class="line"><a name="l02670"></a><span class="lineno"> 2670</span>  out += out_stride;</div> +<div class="line"><a name="l02671"></a><span class="lineno"> 2671</span>  _mm_storel_epi64((__m128i *)out, _mm_shuffle_epi32(p1, 0x4e));</div> +<div class="line"><a name="l02672"></a><span class="lineno"> 2672</span>  out += out_stride;</div> +<div class="line"><a name="l02673"></a><span class="lineno"> 2673</span>  _mm_storel_epi64((__m128i *)out, p3);</div> +<div class="line"><a name="l02674"></a><span class="lineno"> 2674</span>  out += out_stride;</div> +<div class="line"><a name="l02675"></a><span class="lineno"> 2675</span>  _mm_storel_epi64((__m128i *)out, _mm_shuffle_epi32(p3, 0x4e));</div> +<div class="line"><a name="l02676"></a><span class="lineno"> 2676</span>  }</div> +<div class="line"><a name="l02677"></a><span class="lineno"> 2677</span> </div> +<div class="line"><a name="l02678"></a><span class="lineno"> 2678</span> <span class="preprocessor">#undef dct_const</span></div> +<div class="line"><a name="l02679"></a><span class="lineno"> 2679</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_rot</span></div> +<div class="line"><a name="l02680"></a><span class="lineno"> 2680</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_widen</span></div> +<div class="line"><a name="l02681"></a><span class="lineno"> 2681</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wadd</span></div> +<div class="line"><a name="l02682"></a><span class="lineno"> 2682</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wsub</span></div> +<div class="line"><a name="l02683"></a><span class="lineno"> 2683</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_bfly32o</span></div> +<div class="line"><a name="l02684"></a><span class="lineno"> 2684</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_interleave8</span></div> +<div class="line"><a name="l02685"></a><span class="lineno"> 2685</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_interleave16</span></div> +<div class="line"><a name="l02686"></a><span class="lineno"> 2686</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_pass</span></div> +<div class="line"><a name="l02687"></a><span class="lineno"> 2687</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l02688"></a><span class="lineno"> 2688</span> </div> +<div class="line"><a name="l02689"></a><span class="lineno"> 2689</span> <span class="preprocessor">#endif // STBI_SSE2</span></div> +<div class="line"><a name="l02690"></a><span class="lineno"> 2690</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02691"></a><span class="lineno"> 2691</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> +<div class="line"><a name="l02692"></a><span class="lineno"> 2692</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02693"></a><span class="lineno"> 2693</span> <span class="comment">// NEON integer IDCT. should produce bit-identical</span></div> +<div class="line"><a name="l02694"></a><span class="lineno"> 2694</span> <span class="comment">// results to the generic C version.</span></div> +<div class="line"><a name="l02695"></a><span class="lineno"> 2695</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__idct_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keywordtype">int</span> out_stride, <span class="keywordtype">short</span> data[64])</div> +<div class="line"><a name="l02696"></a><span class="lineno"> 2696</span> {</div> +<div class="line"><a name="l02697"></a><span class="lineno"> 2697</span>  int16x8_t row0, row1, row2, row3, row4, row5, row6, row7;</div> +<div class="line"><a name="l02698"></a><span class="lineno"> 2698</span> </div> +<div class="line"><a name="l02699"></a><span class="lineno"> 2699</span>  int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f));</div> +<div class="line"><a name="l02700"></a><span class="lineno"> 2700</span>  int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f));</div> +<div class="line"><a name="l02701"></a><span class="lineno"> 2701</span>  int16x4_t rot0_2 = vdup_n_s16(stbi__f2f(0.765366865f));</div> +<div class="line"><a name="l02702"></a><span class="lineno"> 2702</span>  int16x4_t rot1_0 = vdup_n_s16(stbi__f2f(1.175875602f));</div> +<div class="line"><a name="l02703"></a><span class="lineno"> 2703</span>  int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f));</div> +<div class="line"><a name="l02704"></a><span class="lineno"> 2704</span>  int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f));</div> +<div class="line"><a name="l02705"></a><span class="lineno"> 2705</span>  int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f));</div> +<div class="line"><a name="l02706"></a><span class="lineno"> 2706</span>  int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f));</div> +<div class="line"><a name="l02707"></a><span class="lineno"> 2707</span>  int16x4_t rot3_0 = vdup_n_s16(stbi__f2f(0.298631336f));</div> +<div class="line"><a name="l02708"></a><span class="lineno"> 2708</span>  int16x4_t rot3_1 = vdup_n_s16(stbi__f2f(2.053119869f));</div> +<div class="line"><a name="l02709"></a><span class="lineno"> 2709</span>  int16x4_t rot3_2 = vdup_n_s16(stbi__f2f(3.072711026f));</div> +<div class="line"><a name="l02710"></a><span class="lineno"> 2710</span>  int16x4_t rot3_3 = vdup_n_s16(stbi__f2f(1.501321110f));</div> +<div class="line"><a name="l02711"></a><span class="lineno"> 2711</span> </div> +<div class="line"><a name="l02712"></a><span class="lineno"> 2712</span> <span class="preprocessor">#define dct_long_mul(out, inq, coeff) \</span></div> +<div class="line"><a name="l02713"></a><span class="lineno"> 2713</span> <span class="preprocessor"> int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \</span></div> +<div class="line"><a name="l02714"></a><span class="lineno"> 2714</span> <span class="preprocessor"> int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff)</span></div> +<div class="line"><a name="l02715"></a><span class="lineno"> 2715</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02716"></a><span class="lineno"> 2716</span> <span class="preprocessor">#define dct_long_mac(out, acc, inq, coeff) \</span></div> +<div class="line"><a name="l02717"></a><span class="lineno"> 2717</span> <span class="preprocessor"> int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \</span></div> +<div class="line"><a name="l02718"></a><span class="lineno"> 2718</span> <span class="preprocessor"> int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff)</span></div> +<div class="line"><a name="l02719"></a><span class="lineno"> 2719</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02720"></a><span class="lineno"> 2720</span> <span class="preprocessor">#define dct_widen(out, inq) \</span></div> +<div class="line"><a name="l02721"></a><span class="lineno"> 2721</span> <span class="preprocessor"> int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \</span></div> +<div class="line"><a name="l02722"></a><span class="lineno"> 2722</span> <span class="preprocessor"> int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12)</span></div> +<div class="line"><a name="l02723"></a><span class="lineno"> 2723</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02724"></a><span class="lineno"> 2724</span> <span class="comment">// wide add</span></div> +<div class="line"><a name="l02725"></a><span class="lineno"> 2725</span> <span class="preprocessor">#define dct_wadd(out, a, b) \</span></div> +<div class="line"><a name="l02726"></a><span class="lineno"> 2726</span> <span class="preprocessor"> int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \</span></div> +<div class="line"><a name="l02727"></a><span class="lineno"> 2727</span> <span class="preprocessor"> int32x4_t out##_h = vaddq_s32(a##_h, b##_h)</span></div> +<div class="line"><a name="l02728"></a><span class="lineno"> 2728</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02729"></a><span class="lineno"> 2729</span> <span class="comment">// wide sub</span></div> +<div class="line"><a name="l02730"></a><span class="lineno"> 2730</span> <span class="preprocessor">#define dct_wsub(out, a, b) \</span></div> +<div class="line"><a name="l02731"></a><span class="lineno"> 2731</span> <span class="preprocessor"> int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \</span></div> +<div class="line"><a name="l02732"></a><span class="lineno"> 2732</span> <span class="preprocessor"> int32x4_t out##_h = vsubq_s32(a##_h, b##_h)</span></div> +<div class="line"><a name="l02733"></a><span class="lineno"> 2733</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02734"></a><span class="lineno"> 2734</span> <span class="comment">// butterfly a/b, then shift using "shiftop" by "s" and pack</span></div> +<div class="line"><a name="l02735"></a><span class="lineno"> 2735</span> <span class="preprocessor">#define dct_bfly32o(out0, out1, a, b, shiftop, s) \</span></div> +<div class="line"><a name="l02736"></a><span class="lineno"> 2736</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02737"></a><span class="lineno"> 2737</span> <span class="preprocessor"> dct_wadd(sum, a, b); \</span></div> +<div class="line"><a name="l02738"></a><span class="lineno"> 2738</span> <span class="preprocessor"> dct_wsub(dif, a, b); \</span></div> +<div class="line"><a name="l02739"></a><span class="lineno"> 2739</span> <span class="preprocessor"> out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \</span></div> +<div class="line"><a name="l02740"></a><span class="lineno"> 2740</span> <span class="preprocessor"> out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \</span></div> +<div class="line"><a name="l02741"></a><span class="lineno"> 2741</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02742"></a><span class="lineno"> 2742</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02743"></a><span class="lineno"> 2743</span> <span class="preprocessor">#define dct_pass(shiftop, shift) \</span></div> +<div class="line"><a name="l02744"></a><span class="lineno"> 2744</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02745"></a><span class="lineno"> 2745</span> <span class="preprocessor"> </span><span class="comment">/* even part */</span><span class="preprocessor"> \</span></div> +<div class="line"><a name="l02746"></a><span class="lineno"> 2746</span> <span class="preprocessor"> int16x8_t sum26 = vaddq_s16(row2, row6); \</span></div> +<div class="line"><a name="l02747"></a><span class="lineno"> 2747</span> <span class="preprocessor"> dct_long_mul(p1e, sum26, rot0_0); \</span></div> +<div class="line"><a name="l02748"></a><span class="lineno"> 2748</span> <span class="preprocessor"> dct_long_mac(t2e, p1e, row6, rot0_1); \</span></div> +<div class="line"><a name="l02749"></a><span class="lineno"> 2749</span> <span class="preprocessor"> dct_long_mac(t3e, p1e, row2, rot0_2); \</span></div> +<div class="line"><a name="l02750"></a><span class="lineno"> 2750</span> <span class="preprocessor"> int16x8_t sum04 = vaddq_s16(row0, row4); \</span></div> +<div class="line"><a name="l02751"></a><span class="lineno"> 2751</span> <span class="preprocessor"> int16x8_t dif04 = vsubq_s16(row0, row4); \</span></div> +<div class="line"><a name="l02752"></a><span class="lineno"> 2752</span> <span class="preprocessor"> dct_widen(t0e, sum04); \</span></div> +<div class="line"><a name="l02753"></a><span class="lineno"> 2753</span> <span class="preprocessor"> dct_widen(t1e, dif04); \</span></div> +<div class="line"><a name="l02754"></a><span class="lineno"> 2754</span> <span class="preprocessor"> dct_wadd(x0, t0e, t3e); \</span></div> +<div class="line"><a name="l02755"></a><span class="lineno"> 2755</span> <span class="preprocessor"> dct_wsub(x3, t0e, t3e); \</span></div> +<div class="line"><a name="l02756"></a><span class="lineno"> 2756</span> <span class="preprocessor"> dct_wadd(x1, t1e, t2e); \</span></div> +<div class="line"><a name="l02757"></a><span class="lineno"> 2757</span> <span class="preprocessor"> dct_wsub(x2, t1e, t2e); \</span></div> +<div class="line"><a name="l02758"></a><span class="lineno"> 2758</span> <span class="preprocessor"> </span><span class="comment">/* odd part */</span><span class="preprocessor"> \</span></div> +<div class="line"><a name="l02759"></a><span class="lineno"> 2759</span> <span class="preprocessor"> int16x8_t sum15 = vaddq_s16(row1, row5); \</span></div> +<div class="line"><a name="l02760"></a><span class="lineno"> 2760</span> <span class="preprocessor"> int16x8_t sum17 = vaddq_s16(row1, row7); \</span></div> +<div class="line"><a name="l02761"></a><span class="lineno"> 2761</span> <span class="preprocessor"> int16x8_t sum35 = vaddq_s16(row3, row5); \</span></div> +<div class="line"><a name="l02762"></a><span class="lineno"> 2762</span> <span class="preprocessor"> int16x8_t sum37 = vaddq_s16(row3, row7); \</span></div> +<div class="line"><a name="l02763"></a><span class="lineno"> 2763</span> <span class="preprocessor"> int16x8_t sumodd = vaddq_s16(sum17, sum35); \</span></div> +<div class="line"><a name="l02764"></a><span class="lineno"> 2764</span> <span class="preprocessor"> dct_long_mul(p5o, sumodd, rot1_0); \</span></div> +<div class="line"><a name="l02765"></a><span class="lineno"> 2765</span> <span class="preprocessor"> dct_long_mac(p1o, p5o, sum17, rot1_1); \</span></div> +<div class="line"><a name="l02766"></a><span class="lineno"> 2766</span> <span class="preprocessor"> dct_long_mac(p2o, p5o, sum35, rot1_2); \</span></div> +<div class="line"><a name="l02767"></a><span class="lineno"> 2767</span> <span class="preprocessor"> dct_long_mul(p3o, sum37, rot2_0); \</span></div> +<div class="line"><a name="l02768"></a><span class="lineno"> 2768</span> <span class="preprocessor"> dct_long_mul(p4o, sum15, rot2_1); \</span></div> +<div class="line"><a name="l02769"></a><span class="lineno"> 2769</span> <span class="preprocessor"> dct_wadd(sump13o, p1o, p3o); \</span></div> +<div class="line"><a name="l02770"></a><span class="lineno"> 2770</span> <span class="preprocessor"> dct_wadd(sump24o, p2o, p4o); \</span></div> +<div class="line"><a name="l02771"></a><span class="lineno"> 2771</span> <span class="preprocessor"> dct_wadd(sump23o, p2o, p3o); \</span></div> +<div class="line"><a name="l02772"></a><span class="lineno"> 2772</span> <span class="preprocessor"> dct_wadd(sump14o, p1o, p4o); \</span></div> +<div class="line"><a name="l02773"></a><span class="lineno"> 2773</span> <span class="preprocessor"> dct_long_mac(x4, sump13o, row7, rot3_0); \</span></div> +<div class="line"><a name="l02774"></a><span class="lineno"> 2774</span> <span class="preprocessor"> dct_long_mac(x5, sump24o, row5, rot3_1); \</span></div> +<div class="line"><a name="l02775"></a><span class="lineno"> 2775</span> <span class="preprocessor"> dct_long_mac(x6, sump23o, row3, rot3_2); \</span></div> +<div class="line"><a name="l02776"></a><span class="lineno"> 2776</span> <span class="preprocessor"> dct_long_mac(x7, sump14o, row1, rot3_3); \</span></div> +<div class="line"><a name="l02777"></a><span class="lineno"> 2777</span> <span class="preprocessor"> dct_bfly32o(row0, row7, x0, x7, shiftop, shift); \</span></div> +<div class="line"><a name="l02778"></a><span class="lineno"> 2778</span> <span class="preprocessor"> dct_bfly32o(row1, row6, x1, x6, shiftop, shift); \</span></div> +<div class="line"><a name="l02779"></a><span class="lineno"> 2779</span> <span class="preprocessor"> dct_bfly32o(row2, row5, x2, x5, shiftop, shift); \</span></div> +<div class="line"><a name="l02780"></a><span class="lineno"> 2780</span> <span class="preprocessor"> dct_bfly32o(row3, row4, x3, x4, shiftop, shift); \</span></div> +<div class="line"><a name="l02781"></a><span class="lineno"> 2781</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02782"></a><span class="lineno"> 2782</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02783"></a><span class="lineno"> 2783</span>  <span class="comment">// load</span></div> +<div class="line"><a name="l02784"></a><span class="lineno"> 2784</span>  row0 = vld1q_s16(data + 0 * 8);</div> +<div class="line"><a name="l02785"></a><span class="lineno"> 2785</span>  row1 = vld1q_s16(data + 1 * 8);</div> +<div class="line"><a name="l02786"></a><span class="lineno"> 2786</span>  row2 = vld1q_s16(data + 2 * 8);</div> +<div class="line"><a name="l02787"></a><span class="lineno"> 2787</span>  row3 = vld1q_s16(data + 3 * 8);</div> +<div class="line"><a name="l02788"></a><span class="lineno"> 2788</span>  row4 = vld1q_s16(data + 4 * 8);</div> +<div class="line"><a name="l02789"></a><span class="lineno"> 2789</span>  row5 = vld1q_s16(data + 5 * 8);</div> +<div class="line"><a name="l02790"></a><span class="lineno"> 2790</span>  row6 = vld1q_s16(data + 6 * 8);</div> +<div class="line"><a name="l02791"></a><span class="lineno"> 2791</span>  row7 = vld1q_s16(data + 7 * 8);</div> +<div class="line"><a name="l02792"></a><span class="lineno"> 2792</span> </div> +<div class="line"><a name="l02793"></a><span class="lineno"> 2793</span>  <span class="comment">// add DC bias</span></div> +<div class="line"><a name="l02794"></a><span class="lineno"> 2794</span>  row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0));</div> +<div class="line"><a name="l02795"></a><span class="lineno"> 2795</span> </div> +<div class="line"><a name="l02796"></a><span class="lineno"> 2796</span>  <span class="comment">// column pass</span></div> +<div class="line"><a name="l02797"></a><span class="lineno"> 2797</span>  dct_pass(vrshrn_n_s32, 10);</div> <div class="line"><a name="l02798"></a><span class="lineno"> 2798</span> </div> -<div class="line"><a name="l02799"></a><span class="lineno"> 2799</span>  <span class="keywordflow">case</span> 0xDB: <span class="comment">// DQT - define quantization table</span></div> -<div class="line"><a name="l02800"></a><span class="lineno"> 2800</span>  L = stbi__get16be(z->s)-2;</div> -<div class="line"><a name="l02801"></a><span class="lineno"> 2801</span>  <span class="keywordflow">while</span> (L > 0) {</div> -<div class="line"><a name="l02802"></a><span class="lineno"> 2802</span>  <span class="keywordtype">int</span> q = stbi__get8(z->s);</div> -<div class="line"><a name="l02803"></a><span class="lineno"> 2803</span>  <span class="keywordtype">int</span> p = q >> 4, sixteen = (p != 0);</div> -<div class="line"><a name="l02804"></a><span class="lineno"> 2804</span>  <span class="keywordtype">int</span> t = q & 15,i;</div> -<div class="line"><a name="l02805"></a><span class="lineno"> 2805</span>  <span class="keywordflow">if</span> (p != 0 && p != 1) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DQT type"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02806"></a><span class="lineno"> 2806</span>  <span class="keywordflow">if</span> (t > 3) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DQT table"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02807"></a><span class="lineno"> 2807</span> </div> -<div class="line"><a name="l02808"></a><span class="lineno"> 2808</span>  <span class="keywordflow">for</span> (i=0; i < 64; ++i)</div> -<div class="line"><a name="l02809"></a><span class="lineno"> 2809</span>  z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s));</div> -<div class="line"><a name="l02810"></a><span class="lineno"> 2810</span>  L -= (sixteen ? 129 : 65);</div> -<div class="line"><a name="l02811"></a><span class="lineno"> 2811</span>  }</div> -<div class="line"><a name="l02812"></a><span class="lineno"> 2812</span>  <span class="keywordflow">return</span> L==0;</div> -<div class="line"><a name="l02813"></a><span class="lineno"> 2813</span> </div> -<div class="line"><a name="l02814"></a><span class="lineno"> 2814</span>  <span class="keywordflow">case</span> 0xC4: <span class="comment">// DHT - define huffman table</span></div> -<div class="line"><a name="l02815"></a><span class="lineno"> 2815</span>  L = stbi__get16be(z->s)-2;</div> -<div class="line"><a name="l02816"></a><span class="lineno"> 2816</span>  <span class="keywordflow">while</span> (L > 0) {</div> -<div class="line"><a name="l02817"></a><span class="lineno"> 2817</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *v;</div> -<div class="line"><a name="l02818"></a><span class="lineno"> 2818</span>  <span class="keywordtype">int</span> sizes[16],i,n=0;</div> -<div class="line"><a name="l02819"></a><span class="lineno"> 2819</span>  <span class="keywordtype">int</span> q = stbi__get8(z->s);</div> -<div class="line"><a name="l02820"></a><span class="lineno"> 2820</span>  <span class="keywordtype">int</span> tc = q >> 4;</div> -<div class="line"><a name="l02821"></a><span class="lineno"> 2821</span>  <span class="keywordtype">int</span> th = q & 15;</div> -<div class="line"><a name="l02822"></a><span class="lineno"> 2822</span>  <span class="keywordflow">if</span> (tc > 1 || th > 3) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DHT header"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02823"></a><span class="lineno"> 2823</span>  <span class="keywordflow">for</span> (i=0; i < 16; ++i) {</div> -<div class="line"><a name="l02824"></a><span class="lineno"> 2824</span>  sizes[i] = stbi__get8(z->s);</div> -<div class="line"><a name="l02825"></a><span class="lineno"> 2825</span>  n += sizes[i];</div> -<div class="line"><a name="l02826"></a><span class="lineno"> 2826</span>  }</div> -<div class="line"><a name="l02827"></a><span class="lineno"> 2827</span>  L -= 17;</div> -<div class="line"><a name="l02828"></a><span class="lineno"> 2828</span>  <span class="keywordflow">if</span> (tc == 0) {</div> -<div class="line"><a name="l02829"></a><span class="lineno"> 2829</span>  <span class="keywordflow">if</span> (!stbi__build_huffman(z->huff_dc+th, sizes)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02830"></a><span class="lineno"> 2830</span>  v = z->huff_dc[th].values;</div> -<div class="line"><a name="l02831"></a><span class="lineno"> 2831</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02832"></a><span class="lineno"> 2832</span>  <span class="keywordflow">if</span> (!stbi__build_huffman(z->huff_ac+th, sizes)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l02833"></a><span class="lineno"> 2833</span>  v = z->huff_ac[th].values;</div> -<div class="line"><a name="l02834"></a><span class="lineno"> 2834</span>  }</div> -<div class="line"><a name="l02835"></a><span class="lineno"> 2835</span>  <span class="keywordflow">for</span> (i=0; i < n; ++i)</div> -<div class="line"><a name="l02836"></a><span class="lineno"> 2836</span>  v[i] = stbi__get8(z->s);</div> -<div class="line"><a name="l02837"></a><span class="lineno"> 2837</span>  <span class="keywordflow">if</span> (tc != 0)</div> -<div class="line"><a name="l02838"></a><span class="lineno"> 2838</span>  stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th);</div> -<div class="line"><a name="l02839"></a><span class="lineno"> 2839</span>  L -= n;</div> -<div class="line"><a name="l02840"></a><span class="lineno"> 2840</span>  }</div> -<div class="line"><a name="l02841"></a><span class="lineno"> 2841</span>  <span class="keywordflow">return</span> L==0;</div> -<div class="line"><a name="l02842"></a><span class="lineno"> 2842</span>  }</div> -<div class="line"><a name="l02843"></a><span class="lineno"> 2843</span> </div> -<div class="line"><a name="l02844"></a><span class="lineno"> 2844</span>  <span class="comment">// check for comment block or APP blocks</span></div> -<div class="line"><a name="l02845"></a><span class="lineno"> 2845</span>  <span class="keywordflow">if</span> ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) {</div> -<div class="line"><a name="l02846"></a><span class="lineno"> 2846</span>  L = stbi__get16be(z->s);</div> -<div class="line"><a name="l02847"></a><span class="lineno"> 2847</span>  <span class="keywordflow">if</span> (L < 2) {</div> -<div class="line"><a name="l02848"></a><span class="lineno"> 2848</span>  <span class="keywordflow">if</span> (m == 0xFE)</div> -<div class="line"><a name="l02849"></a><span class="lineno"> 2849</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad COM len"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02850"></a><span class="lineno"> 2850</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l02851"></a><span class="lineno"> 2851</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad APP len"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02852"></a><span class="lineno"> 2852</span>  }</div> -<div class="line"><a name="l02853"></a><span class="lineno"> 2853</span>  L -= 2;</div> -<div class="line"><a name="l02854"></a><span class="lineno"> 2854</span> </div> -<div class="line"><a name="l02855"></a><span class="lineno"> 2855</span>  <span class="keywordflow">if</span> (m == 0xE0 && L >= 5) { <span class="comment">// JFIF APP0 segment</span></div> -<div class="line"><a name="l02856"></a><span class="lineno"> 2856</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> tag[5] = {<span class="charliteral">'J'</span>,<span class="charliteral">'F'</span>,<span class="charliteral">'I'</span>,<span class="charliteral">'F'</span>,<span class="charliteral">'\0'</span>};</div> -<div class="line"><a name="l02857"></a><span class="lineno"> 2857</span>  <span class="keywordtype">int</span> ok = 1;</div> -<div class="line"><a name="l02858"></a><span class="lineno"> 2858</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l02859"></a><span class="lineno"> 2859</span>  <span class="keywordflow">for</span> (i=0; i < 5; ++i)</div> -<div class="line"><a name="l02860"></a><span class="lineno"> 2860</span>  <span class="keywordflow">if</span> (stbi__get8(z->s) != tag[i])</div> -<div class="line"><a name="l02861"></a><span class="lineno"> 2861</span>  ok = 0;</div> -<div class="line"><a name="l02862"></a><span class="lineno"> 2862</span>  L -= 5;</div> -<div class="line"><a name="l02863"></a><span class="lineno"> 2863</span>  <span class="keywordflow">if</span> (ok)</div> -<div class="line"><a name="l02864"></a><span class="lineno"> 2864</span>  z->jfif = 1;</div> -<div class="line"><a name="l02865"></a><span class="lineno"> 2865</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (m == 0xEE && L >= 12) { <span class="comment">// Adobe APP14 segment</span></div> -<div class="line"><a name="l02866"></a><span class="lineno"> 2866</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> tag[6] = {<span class="charliteral">'A'</span>,<span class="charliteral">'d'</span>,<span class="charliteral">'o'</span>,<span class="charliteral">'b'</span>,<span class="charliteral">'e'</span>,<span class="charliteral">'\0'</span>};</div> -<div class="line"><a name="l02867"></a><span class="lineno"> 2867</span>  <span class="keywordtype">int</span> ok = 1;</div> -<div class="line"><a name="l02868"></a><span class="lineno"> 2868</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l02869"></a><span class="lineno"> 2869</span>  <span class="keywordflow">for</span> (i=0; i < 6; ++i)</div> -<div class="line"><a name="l02870"></a><span class="lineno"> 2870</span>  <span class="keywordflow">if</span> (stbi__get8(z->s) != tag[i])</div> -<div class="line"><a name="l02871"></a><span class="lineno"> 2871</span>  ok = 0;</div> -<div class="line"><a name="l02872"></a><span class="lineno"> 2872</span>  L -= 6;</div> -<div class="line"><a name="l02873"></a><span class="lineno"> 2873</span>  <span class="keywordflow">if</span> (ok) {</div> -<div class="line"><a name="l02874"></a><span class="lineno"> 2874</span>  stbi__get8(z->s); <span class="comment">// version</span></div> -<div class="line"><a name="l02875"></a><span class="lineno"> 2875</span>  stbi__get16be(z->s); <span class="comment">// flags0</span></div> -<div class="line"><a name="l02876"></a><span class="lineno"> 2876</span>  stbi__get16be(z->s); <span class="comment">// flags1</span></div> -<div class="line"><a name="l02877"></a><span class="lineno"> 2877</span>  z->app14_color_transform = stbi__get8(z->s); <span class="comment">// color transform</span></div> -<div class="line"><a name="l02878"></a><span class="lineno"> 2878</span>  L -= 6;</div> -<div class="line"><a name="l02879"></a><span class="lineno"> 2879</span>  }</div> -<div class="line"><a name="l02880"></a><span class="lineno"> 2880</span>  }</div> -<div class="line"><a name="l02881"></a><span class="lineno"> 2881</span> </div> -<div class="line"><a name="l02882"></a><span class="lineno"> 2882</span>  stbi__skip(z->s, L);</div> -<div class="line"><a name="l02883"></a><span class="lineno"> 2883</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02884"></a><span class="lineno"> 2884</span>  }</div> -<div class="line"><a name="l02885"></a><span class="lineno"> 2885</span> </div> -<div class="line"><a name="l02886"></a><span class="lineno"> 2886</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"unknown marker"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02887"></a><span class="lineno"> 2887</span> }</div> +<div class="line"><a name="l02799"></a><span class="lineno"> 2799</span>  <span class="comment">// 16bit 8x8 transpose</span></div> +<div class="line"><a name="l02800"></a><span class="lineno"> 2800</span>  {</div> +<div class="line"><a name="l02801"></a><span class="lineno"> 2801</span> <span class="comment">// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively.</span></div> +<div class="line"><a name="l02802"></a><span class="lineno"> 2802</span> <span class="comment">// whether compilers actually get this is another story, sadly.</span></div> +<div class="line"><a name="l02803"></a><span class="lineno"> 2803</span> <span class="preprocessor">#define dct_trn16(x, y) \</span></div> +<div class="line"><a name="l02804"></a><span class="lineno"> 2804</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02805"></a><span class="lineno"> 2805</span> <span class="preprocessor"> int16x8x2_t t = vtrnq_s16(x, y); \</span></div> +<div class="line"><a name="l02806"></a><span class="lineno"> 2806</span> <span class="preprocessor"> x = t.val[0]; \</span></div> +<div class="line"><a name="l02807"></a><span class="lineno"> 2807</span> <span class="preprocessor"> y = t.val[1]; \</span></div> +<div class="line"><a name="l02808"></a><span class="lineno"> 2808</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02809"></a><span class="lineno"> 2809</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn32(x, y) \</span></div> +<div class="line"><a name="l02810"></a><span class="lineno"> 2810</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02811"></a><span class="lineno"> 2811</span> <span class="preprocessor"> int32x4x2_t t = \</span></div> +<div class="line"><a name="l02812"></a><span class="lineno"> 2812</span> <span class="preprocessor"> vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); \</span></div> +<div class="line"><a name="l02813"></a><span class="lineno"> 2813</span> <span class="preprocessor"> x = vreinterpretq_s16_s32(t.val[0]); \</span></div> +<div class="line"><a name="l02814"></a><span class="lineno"> 2814</span> <span class="preprocessor"> y = vreinterpretq_s16_s32(t.val[1]); \</span></div> +<div class="line"><a name="l02815"></a><span class="lineno"> 2815</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02816"></a><span class="lineno"> 2816</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn64(x, y) \</span></div> +<div class="line"><a name="l02817"></a><span class="lineno"> 2817</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02818"></a><span class="lineno"> 2818</span> <span class="preprocessor"> int16x8_t x0 = x; \</span></div> +<div class="line"><a name="l02819"></a><span class="lineno"> 2819</span> <span class="preprocessor"> int16x8_t y0 = y; \</span></div> +<div class="line"><a name="l02820"></a><span class="lineno"> 2820</span> <span class="preprocessor"> x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); \</span></div> +<div class="line"><a name="l02821"></a><span class="lineno"> 2821</span> <span class="preprocessor"> y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); \</span></div> +<div class="line"><a name="l02822"></a><span class="lineno"> 2822</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02823"></a><span class="lineno"> 2823</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02824"></a><span class="lineno"> 2824</span>  <span class="comment">// pass 1</span></div> +<div class="line"><a name="l02825"></a><span class="lineno"> 2825</span>  dct_trn16(row0, row1); <span class="comment">// a0b0a2b2a4b4a6b6</span></div> +<div class="line"><a name="l02826"></a><span class="lineno"> 2826</span>  dct_trn16(row2, row3);</div> +<div class="line"><a name="l02827"></a><span class="lineno"> 2827</span>  dct_trn16(row4, row5);</div> +<div class="line"><a name="l02828"></a><span class="lineno"> 2828</span>  dct_trn16(row6, row7);</div> +<div class="line"><a name="l02829"></a><span class="lineno"> 2829</span> </div> +<div class="line"><a name="l02830"></a><span class="lineno"> 2830</span>  <span class="comment">// pass 2</span></div> +<div class="line"><a name="l02831"></a><span class="lineno"> 2831</span>  dct_trn32(row0, row2); <span class="comment">// a0b0c0d0a4b4c4d4</span></div> +<div class="line"><a name="l02832"></a><span class="lineno"> 2832</span>  dct_trn32(row1, row3);</div> +<div class="line"><a name="l02833"></a><span class="lineno"> 2833</span>  dct_trn32(row4, row6);</div> +<div class="line"><a name="l02834"></a><span class="lineno"> 2834</span>  dct_trn32(row5, row7);</div> +<div class="line"><a name="l02835"></a><span class="lineno"> 2835</span> </div> +<div class="line"><a name="l02836"></a><span class="lineno"> 2836</span>  <span class="comment">// pass 3</span></div> +<div class="line"><a name="l02837"></a><span class="lineno"> 2837</span>  dct_trn64(row0, row4); <span class="comment">// a0b0c0d0e0f0g0h0</span></div> +<div class="line"><a name="l02838"></a><span class="lineno"> 2838</span>  dct_trn64(row1, row5);</div> +<div class="line"><a name="l02839"></a><span class="lineno"> 2839</span>  dct_trn64(row2, row6);</div> +<div class="line"><a name="l02840"></a><span class="lineno"> 2840</span>  dct_trn64(row3, row7);</div> +<div class="line"><a name="l02841"></a><span class="lineno"> 2841</span> </div> +<div class="line"><a name="l02842"></a><span class="lineno"> 2842</span> <span class="preprocessor">#undef dct_trn16</span></div> +<div class="line"><a name="l02843"></a><span class="lineno"> 2843</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn32</span></div> +<div class="line"><a name="l02844"></a><span class="lineno"> 2844</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn64</span></div> +<div class="line"><a name="l02845"></a><span class="lineno"> 2845</span> <span class="preprocessor"></span> }</div> +<div class="line"><a name="l02846"></a><span class="lineno"> 2846</span> </div> +<div class="line"><a name="l02847"></a><span class="lineno"> 2847</span>  <span class="comment">// row pass</span></div> +<div class="line"><a name="l02848"></a><span class="lineno"> 2848</span>  <span class="comment">// vrshrn_n_s32 only supports shifts up to 16, we need</span></div> +<div class="line"><a name="l02849"></a><span class="lineno"> 2849</span>  <span class="comment">// 17. so do a non-rounding shift of 16 first then follow</span></div> +<div class="line"><a name="l02850"></a><span class="lineno"> 2850</span>  <span class="comment">// up with a rounding shift by 1.</span></div> +<div class="line"><a name="l02851"></a><span class="lineno"> 2851</span>  dct_pass(vshrn_n_s32, 16);</div> +<div class="line"><a name="l02852"></a><span class="lineno"> 2852</span> </div> +<div class="line"><a name="l02853"></a><span class="lineno"> 2853</span>  {</div> +<div class="line"><a name="l02854"></a><span class="lineno"> 2854</span>  <span class="comment">// pack and round</span></div> +<div class="line"><a name="l02855"></a><span class="lineno"> 2855</span>  uint8x8_t p0 = vqrshrun_n_s16(row0, 1);</div> +<div class="line"><a name="l02856"></a><span class="lineno"> 2856</span>  uint8x8_t p1 = vqrshrun_n_s16(row1, 1);</div> +<div class="line"><a name="l02857"></a><span class="lineno"> 2857</span>  uint8x8_t p2 = vqrshrun_n_s16(row2, 1);</div> +<div class="line"><a name="l02858"></a><span class="lineno"> 2858</span>  uint8x8_t p3 = vqrshrun_n_s16(row3, 1);</div> +<div class="line"><a name="l02859"></a><span class="lineno"> 2859</span>  uint8x8_t p4 = vqrshrun_n_s16(row4, 1);</div> +<div class="line"><a name="l02860"></a><span class="lineno"> 2860</span>  uint8x8_t p5 = vqrshrun_n_s16(row5, 1);</div> +<div class="line"><a name="l02861"></a><span class="lineno"> 2861</span>  uint8x8_t p6 = vqrshrun_n_s16(row6, 1);</div> +<div class="line"><a name="l02862"></a><span class="lineno"> 2862</span>  uint8x8_t p7 = vqrshrun_n_s16(row7, 1);</div> +<div class="line"><a name="l02863"></a><span class="lineno"> 2863</span> </div> +<div class="line"><a name="l02864"></a><span class="lineno"> 2864</span>  <span class="comment">// again, these can translate into one instruction, but often don't.</span></div> +<div class="line"><a name="l02865"></a><span class="lineno"> 2865</span> <span class="preprocessor">#define dct_trn8_8(x, y) \</span></div> +<div class="line"><a name="l02866"></a><span class="lineno"> 2866</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02867"></a><span class="lineno"> 2867</span> <span class="preprocessor"> uint8x8x2_t t = vtrn_u8(x, y); \</span></div> +<div class="line"><a name="l02868"></a><span class="lineno"> 2868</span> <span class="preprocessor"> x = t.val[0]; \</span></div> +<div class="line"><a name="l02869"></a><span class="lineno"> 2869</span> <span class="preprocessor"> y = t.val[1]; \</span></div> +<div class="line"><a name="l02870"></a><span class="lineno"> 2870</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02871"></a><span class="lineno"> 2871</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn8_16(x, y) \</span></div> +<div class="line"><a name="l02872"></a><span class="lineno"> 2872</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02873"></a><span class="lineno"> 2873</span> <span class="preprocessor"> uint16x4x2_t t = \</span></div> +<div class="line"><a name="l02874"></a><span class="lineno"> 2874</span> <span class="preprocessor"> vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); \</span></div> +<div class="line"><a name="l02875"></a><span class="lineno"> 2875</span> <span class="preprocessor"> x = vreinterpret_u8_u16(t.val[0]); \</span></div> +<div class="line"><a name="l02876"></a><span class="lineno"> 2876</span> <span class="preprocessor"> y = vreinterpret_u8_u16(t.val[1]); \</span></div> +<div class="line"><a name="l02877"></a><span class="lineno"> 2877</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02878"></a><span class="lineno"> 2878</span> <span class="preprocessor"></span><span class="preprocessor">#define dct_trn8_32(x, y) \</span></div> +<div class="line"><a name="l02879"></a><span class="lineno"> 2879</span> <span class="preprocessor"> { \</span></div> +<div class="line"><a name="l02880"></a><span class="lineno"> 2880</span> <span class="preprocessor"> uint32x2x2_t t = \</span></div> +<div class="line"><a name="l02881"></a><span class="lineno"> 2881</span> <span class="preprocessor"> vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); \</span></div> +<div class="line"><a name="l02882"></a><span class="lineno"> 2882</span> <span class="preprocessor"> x = vreinterpret_u8_u32(t.val[0]); \</span></div> +<div class="line"><a name="l02883"></a><span class="lineno"> 2883</span> <span class="preprocessor"> y = vreinterpret_u8_u32(t.val[1]); \</span></div> +<div class="line"><a name="l02884"></a><span class="lineno"> 2884</span> <span class="preprocessor"> }</span></div> +<div class="line"><a name="l02885"></a><span class="lineno"> 2885</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02886"></a><span class="lineno"> 2886</span>  <span class="comment">// sadly can't use interleaved stores here since we only write</span></div> +<div class="line"><a name="l02887"></a><span class="lineno"> 2887</span>  <span class="comment">// 8 bytes to each scan line!</span></div> <div class="line"><a name="l02888"></a><span class="lineno"> 2888</span> </div> -<div class="line"><a name="l02889"></a><span class="lineno"> 2889</span> <span class="comment">// after we see SOS</span></div> -<div class="line"><a name="l02890"></a><span class="lineno"> 2890</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__process_scan_header(stbi__jpeg *z)</div> -<div class="line"><a name="l02891"></a><span class="lineno"> 2891</span> {</div> -<div class="line"><a name="l02892"></a><span class="lineno"> 2892</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l02893"></a><span class="lineno"> 2893</span>  <span class="keywordtype">int</span> Ls = stbi__get16be(z->s);</div> -<div class="line"><a name="l02894"></a><span class="lineno"> 2894</span>  z->scan_n = stbi__get8(z->s);</div> -<div class="line"><a name="l02895"></a><span class="lineno"> 2895</span>  <span class="keywordflow">if</span> (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (<span class="keywordtype">int</span>) z->s->img_n) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS component count"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02896"></a><span class="lineno"> 2896</span>  <span class="keywordflow">if</span> (Ls != 6+2*z->scan_n) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS len"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02897"></a><span class="lineno"> 2897</span>  <span class="keywordflow">for</span> (i=0; i < z->scan_n; ++i) {</div> -<div class="line"><a name="l02898"></a><span class="lineno"> 2898</span>  <span class="keywordtype">int</span> <span class="keywordtype">id</span> = stbi__get8(z->s), which;</div> -<div class="line"><a name="l02899"></a><span class="lineno"> 2899</span>  <span class="keywordtype">int</span> q = stbi__get8(z->s);</div> -<div class="line"><a name="l02900"></a><span class="lineno"> 2900</span>  <span class="keywordflow">for</span> (which = 0; which < z->s->img_n; ++which)</div> -<div class="line"><a name="l02901"></a><span class="lineno"> 2901</span>  <span class="keywordflow">if</span> (z->img_comp[which].id == <span class="keywordtype">id</span>)</div> -<div class="line"><a name="l02902"></a><span class="lineno"> 2902</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l02903"></a><span class="lineno"> 2903</span>  <span class="keywordflow">if</span> (which == z->s->img_n) <span class="keywordflow">return</span> 0; <span class="comment">// no match</span></div> -<div class="line"><a name="l02904"></a><span class="lineno"> 2904</span>  z->img_comp[which].hd = q >> 4; <span class="keywordflow">if</span> (z->img_comp[which].hd > 3) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DC huff"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02905"></a><span class="lineno"> 2905</span>  z->img_comp[which].ha = q & 15; <span class="keywordflow">if</span> (z->img_comp[which].ha > 3) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad AC huff"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02906"></a><span class="lineno"> 2906</span>  z->order[i] = which;</div> -<div class="line"><a name="l02907"></a><span class="lineno"> 2907</span>  }</div> -<div class="line"><a name="l02908"></a><span class="lineno"> 2908</span> </div> -<div class="line"><a name="l02909"></a><span class="lineno"> 2909</span>  {</div> -<div class="line"><a name="l02910"></a><span class="lineno"> 2910</span>  <span class="keywordtype">int</span> aa;</div> -<div class="line"><a name="l02911"></a><span class="lineno"> 2911</span>  z->spec_start = stbi__get8(z->s);</div> -<div class="line"><a name="l02912"></a><span class="lineno"> 2912</span>  z->spec_end = stbi__get8(z->s); <span class="comment">// should be 63, but might be 0</span></div> -<div class="line"><a name="l02913"></a><span class="lineno"> 2913</span>  aa = stbi__get8(z->s);</div> -<div class="line"><a name="l02914"></a><span class="lineno"> 2914</span>  z->succ_high = (aa >> 4);</div> -<div class="line"><a name="l02915"></a><span class="lineno"> 2915</span>  z->succ_low = (aa & 15);</div> -<div class="line"><a name="l02916"></a><span class="lineno"> 2916</span>  <span class="keywordflow">if</span> (z->progressive) {</div> -<div class="line"><a name="l02917"></a><span class="lineno"> 2917</span>  <span class="keywordflow">if</span> (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13)</div> -<div class="line"><a name="l02918"></a><span class="lineno"> 2918</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02919"></a><span class="lineno"> 2919</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l02920"></a><span class="lineno"> 2920</span>  <span class="keywordflow">if</span> (z->spec_start != 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02921"></a><span class="lineno"> 2921</span>  <span class="keywordflow">if</span> (z->succ_high != 0 || z->succ_low != 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02922"></a><span class="lineno"> 2922</span>  z->spec_end = 63;</div> -<div class="line"><a name="l02923"></a><span class="lineno"> 2923</span>  }</div> -<div class="line"><a name="l02924"></a><span class="lineno"> 2924</span>  }</div> -<div class="line"><a name="l02925"></a><span class="lineno"> 2925</span> </div> -<div class="line"><a name="l02926"></a><span class="lineno"> 2926</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02927"></a><span class="lineno"> 2927</span> }</div> +<div class="line"><a name="l02889"></a><span class="lineno"> 2889</span>  <span class="comment">// 8x8 8-bit transpose pass 1</span></div> +<div class="line"><a name="l02890"></a><span class="lineno"> 2890</span>  dct_trn8_8(p0, p1);</div> +<div class="line"><a name="l02891"></a><span class="lineno"> 2891</span>  dct_trn8_8(p2, p3);</div> +<div class="line"><a name="l02892"></a><span class="lineno"> 2892</span>  dct_trn8_8(p4, p5);</div> +<div class="line"><a name="l02893"></a><span class="lineno"> 2893</span>  dct_trn8_8(p6, p7);</div> +<div class="line"><a name="l02894"></a><span class="lineno"> 2894</span> </div> +<div class="line"><a name="l02895"></a><span class="lineno"> 2895</span>  <span class="comment">// pass 2</span></div> +<div class="line"><a name="l02896"></a><span class="lineno"> 2896</span>  dct_trn8_16(p0, p2);</div> +<div class="line"><a name="l02897"></a><span class="lineno"> 2897</span>  dct_trn8_16(p1, p3);</div> +<div class="line"><a name="l02898"></a><span class="lineno"> 2898</span>  dct_trn8_16(p4, p6);</div> +<div class="line"><a name="l02899"></a><span class="lineno"> 2899</span>  dct_trn8_16(p5, p7);</div> +<div class="line"><a name="l02900"></a><span class="lineno"> 2900</span> </div> +<div class="line"><a name="l02901"></a><span class="lineno"> 2901</span>  <span class="comment">// pass 3</span></div> +<div class="line"><a name="l02902"></a><span class="lineno"> 2902</span>  dct_trn8_32(p0, p4);</div> +<div class="line"><a name="l02903"></a><span class="lineno"> 2903</span>  dct_trn8_32(p1, p5);</div> +<div class="line"><a name="l02904"></a><span class="lineno"> 2904</span>  dct_trn8_32(p2, p6);</div> +<div class="line"><a name="l02905"></a><span class="lineno"> 2905</span>  dct_trn8_32(p3, p7);</div> +<div class="line"><a name="l02906"></a><span class="lineno"> 2906</span> </div> +<div class="line"><a name="l02907"></a><span class="lineno"> 2907</span>  <span class="comment">// store</span></div> +<div class="line"><a name="l02908"></a><span class="lineno"> 2908</span>  vst1_u8(out, p0);</div> +<div class="line"><a name="l02909"></a><span class="lineno"> 2909</span>  out += out_stride;</div> +<div class="line"><a name="l02910"></a><span class="lineno"> 2910</span>  vst1_u8(out, p1);</div> +<div class="line"><a name="l02911"></a><span class="lineno"> 2911</span>  out += out_stride;</div> +<div class="line"><a name="l02912"></a><span class="lineno"> 2912</span>  vst1_u8(out, p2);</div> +<div class="line"><a name="l02913"></a><span class="lineno"> 2913</span>  out += out_stride;</div> +<div class="line"><a name="l02914"></a><span class="lineno"> 2914</span>  vst1_u8(out, p3);</div> +<div class="line"><a name="l02915"></a><span class="lineno"> 2915</span>  out += out_stride;</div> +<div class="line"><a name="l02916"></a><span class="lineno"> 2916</span>  vst1_u8(out, p4);</div> +<div class="line"><a name="l02917"></a><span class="lineno"> 2917</span>  out += out_stride;</div> +<div class="line"><a name="l02918"></a><span class="lineno"> 2918</span>  vst1_u8(out, p5);</div> +<div class="line"><a name="l02919"></a><span class="lineno"> 2919</span>  out += out_stride;</div> +<div class="line"><a name="l02920"></a><span class="lineno"> 2920</span>  vst1_u8(out, p6);</div> +<div class="line"><a name="l02921"></a><span class="lineno"> 2921</span>  out += out_stride;</div> +<div class="line"><a name="l02922"></a><span class="lineno"> 2922</span>  vst1_u8(out, p7);</div> +<div class="line"><a name="l02923"></a><span class="lineno"> 2923</span> </div> +<div class="line"><a name="l02924"></a><span class="lineno"> 2924</span> <span class="preprocessor">#undef dct_trn8_8</span></div> +<div class="line"><a name="l02925"></a><span class="lineno"> 2925</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn8_16</span></div> +<div class="line"><a name="l02926"></a><span class="lineno"> 2926</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_trn8_32</span></div> +<div class="line"><a name="l02927"></a><span class="lineno"> 2927</span> <span class="preprocessor"></span> }</div> <div class="line"><a name="l02928"></a><span class="lineno"> 2928</span> </div> -<div class="line"><a name="l02929"></a><span class="lineno"> 2929</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__free_jpeg_components(stbi__jpeg *z, <span class="keywordtype">int</span> ncomp, <span class="keywordtype">int</span> why)</div> -<div class="line"><a name="l02930"></a><span class="lineno"> 2930</span> {</div> -<div class="line"><a name="l02931"></a><span class="lineno"> 2931</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l02932"></a><span class="lineno"> 2932</span>  <span class="keywordflow">for</span> (i=0; i < ncomp; ++i) {</div> -<div class="line"><a name="l02933"></a><span class="lineno"> 2933</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_data) {</div> -<div class="line"><a name="l02934"></a><span class="lineno"> 2934</span>  STBI_FREE(z->img_comp[i].raw_data);</div> -<div class="line"><a name="l02935"></a><span class="lineno"> 2935</span>  z->img_comp[i].raw_data = NULL;</div> -<div class="line"><a name="l02936"></a><span class="lineno"> 2936</span>  z->img_comp[i].data = NULL;</div> -<div class="line"><a name="l02937"></a><span class="lineno"> 2937</span>  }</div> -<div class="line"><a name="l02938"></a><span class="lineno"> 2938</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_coeff) {</div> -<div class="line"><a name="l02939"></a><span class="lineno"> 2939</span>  STBI_FREE(z->img_comp[i].raw_coeff);</div> -<div class="line"><a name="l02940"></a><span class="lineno"> 2940</span>  z->img_comp[i].raw_coeff = 0;</div> -<div class="line"><a name="l02941"></a><span class="lineno"> 2941</span>  z->img_comp[i].coeff = 0;</div> -<div class="line"><a name="l02942"></a><span class="lineno"> 2942</span>  }</div> -<div class="line"><a name="l02943"></a><span class="lineno"> 2943</span>  <span class="keywordflow">if</span> (z->img_comp[i].linebuf) {</div> -<div class="line"><a name="l02944"></a><span class="lineno"> 2944</span>  STBI_FREE(z->img_comp[i].linebuf);</div> -<div class="line"><a name="l02945"></a><span class="lineno"> 2945</span>  z->img_comp[i].linebuf = NULL;</div> -<div class="line"><a name="l02946"></a><span class="lineno"> 2946</span>  }</div> -<div class="line"><a name="l02947"></a><span class="lineno"> 2947</span>  }</div> -<div class="line"><a name="l02948"></a><span class="lineno"> 2948</span>  <span class="keywordflow">return</span> why;</div> -<div class="line"><a name="l02949"></a><span class="lineno"> 2949</span> }</div> -<div class="line"><a name="l02950"></a><span class="lineno"> 2950</span> </div> -<div class="line"><a name="l02951"></a><span class="lineno"> 2951</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__process_frame_header(stbi__jpeg *z, <span class="keywordtype">int</span> scan)</div> -<div class="line"><a name="l02952"></a><span class="lineno"> 2952</span> {</div> -<div class="line"><a name="l02953"></a><span class="lineno"> 2953</span>  stbi__context *s = z->s;</div> -<div class="line"><a name="l02954"></a><span class="lineno"> 2954</span>  <span class="keywordtype">int</span> Lf,p,i,q, h_max=1,v_max=1,c;</div> -<div class="line"><a name="l02955"></a><span class="lineno"> 2955</span>  Lf = stbi__get16be(s); <span class="keywordflow">if</span> (Lf < 11) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOF len"</span>,<span class="stringliteral">"Corrupt JPEG"</span>); <span class="comment">// JPEG</span></div> -<div class="line"><a name="l02956"></a><span class="lineno"> 2956</span>  p = stbi__get8(s); <span class="keywordflow">if</span> (p != 8) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"only 8-bit"</span>,<span class="stringliteral">"JPEG format not supported: 8-bit only"</span>); <span class="comment">// JPEG baseline</span></div> -<div class="line"><a name="l02957"></a><span class="lineno"> 2957</span>  s->img_y = stbi__get16be(s); <span class="keywordflow">if</span> (s->img_y == 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no header height"</span>, <span class="stringliteral">"JPEG format not supported: delayed height"</span>); <span class="comment">// Legal, but we don't handle it--but neither does IJG</span></div> -<div class="line"><a name="l02958"></a><span class="lineno"> 2958</span>  s->img_x = stbi__get16be(s); <span class="keywordflow">if</span> (s->img_x == 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"0 width"</span>,<span class="stringliteral">"Corrupt JPEG"</span>); <span class="comment">// JPEG requires</span></div> -<div class="line"><a name="l02959"></a><span class="lineno"> 2959</span>  c = stbi__get8(s);</div> -<div class="line"><a name="l02960"></a><span class="lineno"> 2960</span>  <span class="keywordflow">if</span> (c != 3 && c != 1 && c != 4) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad component count"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02961"></a><span class="lineno"> 2961</span>  s->img_n = c;</div> -<div class="line"><a name="l02962"></a><span class="lineno"> 2962</span>  <span class="keywordflow">for</span> (i=0; i < c; ++i) {</div> -<div class="line"><a name="l02963"></a><span class="lineno"> 2963</span>  z->img_comp[i].data = NULL;</div> -<div class="line"><a name="l02964"></a><span class="lineno"> 2964</span>  z->img_comp[i].linebuf = NULL;</div> -<div class="line"><a name="l02965"></a><span class="lineno"> 2965</span>  }</div> -<div class="line"><a name="l02966"></a><span class="lineno"> 2966</span> </div> -<div class="line"><a name="l02967"></a><span class="lineno"> 2967</span>  <span class="keywordflow">if</span> (Lf != 8+3*s->img_n) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOF len"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02968"></a><span class="lineno"> 2968</span> </div> -<div class="line"><a name="l02969"></a><span class="lineno"> 2969</span>  z->rgb = 0;</div> -<div class="line"><a name="l02970"></a><span class="lineno"> 2970</span>  <span class="keywordflow">for</span> (i=0; i < s->img_n; ++i) {</div> -<div class="line"><a name="l02971"></a><span class="lineno"> 2971</span>  <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> rgb[3] = { <span class="charliteral">'R'</span>, <span class="charliteral">'G'</span>, <span class="charliteral">'B'</span> };</div> -<div class="line"><a name="l02972"></a><span class="lineno"> 2972</span>  z->img_comp[i].id = stbi__get8(s);</div> -<div class="line"><a name="l02973"></a><span class="lineno"> 2973</span>  <span class="keywordflow">if</span> (s->img_n == 3 && z->img_comp[i].id == rgb[i])</div> -<div class="line"><a name="l02974"></a><span class="lineno"> 2974</span>  ++z->rgb;</div> -<div class="line"><a name="l02975"></a><span class="lineno"> 2975</span>  q = stbi__get8(s);</div> -<div class="line"><a name="l02976"></a><span class="lineno"> 2976</span>  z->img_comp[i].h = (q >> 4); <span class="keywordflow">if</span> (!z->img_comp[i].h || z->img_comp[i].h > 4) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad H"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02977"></a><span class="lineno"> 2977</span>  z->img_comp[i].v = q & 15; <span class="keywordflow">if</span> (!z->img_comp[i].v || z->img_comp[i].v > 4) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad V"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02978"></a><span class="lineno"> 2978</span>  z->img_comp[i].tq = stbi__get8(s); <span class="keywordflow">if</span> (z->img_comp[i].tq > 3) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad TQ"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l02979"></a><span class="lineno"> 2979</span>  }</div> -<div class="line"><a name="l02980"></a><span class="lineno"> 2980</span> </div> -<div class="line"><a name="l02981"></a><span class="lineno"> 2981</span>  <span class="keywordflow">if</span> (scan != STBI__SCAN_load) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l02982"></a><span class="lineno"> 2982</span> </div> -<div class="line"><a name="l02983"></a><span class="lineno"> 2983</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Image too large to decode"</span>);</div> -<div class="line"><a name="l02984"></a><span class="lineno"> 2984</span> </div> -<div class="line"><a name="l02985"></a><span class="lineno"> 2985</span>  <span class="keywordflow">for</span> (i=0; i < s->img_n; ++i) {</div> -<div class="line"><a name="l02986"></a><span class="lineno"> 2986</span>  <span class="keywordflow">if</span> (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h;</div> -<div class="line"><a name="l02987"></a><span class="lineno"> 2987</span>  <span class="keywordflow">if</span> (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v;</div> -<div class="line"><a name="l02988"></a><span class="lineno"> 2988</span>  }</div> -<div class="line"><a name="l02989"></a><span class="lineno"> 2989</span> </div> -<div class="line"><a name="l02990"></a><span class="lineno"> 2990</span>  <span class="comment">// compute interleaved mcu info</span></div> -<div class="line"><a name="l02991"></a><span class="lineno"> 2991</span>  z->img_h_max = h_max;</div> -<div class="line"><a name="l02992"></a><span class="lineno"> 2992</span>  z->img_v_max = v_max;</div> -<div class="line"><a name="l02993"></a><span class="lineno"> 2993</span>  z->img_mcu_w = h_max * 8;</div> -<div class="line"><a name="l02994"></a><span class="lineno"> 2994</span>  z->img_mcu_h = v_max * 8;</div> -<div class="line"><a name="l02995"></a><span class="lineno"> 2995</span>  <span class="comment">// these sizes can't be more than 17 bits</span></div> -<div class="line"><a name="l02996"></a><span class="lineno"> 2996</span>  z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w;</div> -<div class="line"><a name="l02997"></a><span class="lineno"> 2997</span>  z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h;</div> -<div class="line"><a name="l02998"></a><span class="lineno"> 2998</span> </div> -<div class="line"><a name="l02999"></a><span class="lineno"> 2999</span>  <span class="keywordflow">for</span> (i=0; i < s->img_n; ++i) {</div> -<div class="line"><a name="l03000"></a><span class="lineno"> 3000</span>  <span class="comment">// number of effective pixels (e.g. for non-interleaved MCU)</span></div> -<div class="line"><a name="l03001"></a><span class="lineno"> 3001</span>  z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max;</div> -<div class="line"><a name="l03002"></a><span class="lineno"> 3002</span>  z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max;</div> -<div class="line"><a name="l03003"></a><span class="lineno"> 3003</span>  <span class="comment">// to simplify generation, we'll allocate enough memory to decode</span></div> -<div class="line"><a name="l03004"></a><span class="lineno"> 3004</span>  <span class="comment">// the bogus oversized data from using interleaved MCUs and their</span></div> -<div class="line"><a name="l03005"></a><span class="lineno"> 3005</span>  <span class="comment">// big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't</span></div> -<div class="line"><a name="l03006"></a><span class="lineno"> 3006</span>  <span class="comment">// discard the extra data until colorspace conversion</span></div> -<div class="line"><a name="l03007"></a><span class="lineno"> 3007</span>  <span class="comment">//</span></div> -<div class="line"><a name="l03008"></a><span class="lineno"> 3008</span>  <span class="comment">// img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier)</span></div> -<div class="line"><a name="l03009"></a><span class="lineno"> 3009</span>  <span class="comment">// so these muls can't overflow with 32-bit ints (which we require)</span></div> -<div class="line"><a name="l03010"></a><span class="lineno"> 3010</span>  z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8;</div> -<div class="line"><a name="l03011"></a><span class="lineno"> 3011</span>  z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8;</div> -<div class="line"><a name="l03012"></a><span class="lineno"> 3012</span>  z->img_comp[i].coeff = 0;</div> -<div class="line"><a name="l03013"></a><span class="lineno"> 3013</span>  z->img_comp[i].raw_coeff = 0;</div> -<div class="line"><a name="l03014"></a><span class="lineno"> 3014</span>  z->img_comp[i].linebuf = NULL;</div> -<div class="line"><a name="l03015"></a><span class="lineno"> 3015</span>  z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15);</div> -<div class="line"><a name="l03016"></a><span class="lineno"> 3016</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_data == NULL)</div> -<div class="line"><a name="l03017"></a><span class="lineno"> 3017</span>  <span class="keywordflow">return</span> stbi__free_jpeg_components(z, i+1, stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>));</div> -<div class="line"><a name="l03018"></a><span class="lineno"> 3018</span>  <span class="comment">// align blocks for idct using mmx/sse</span></div> -<div class="line"><a name="l03019"></a><span class="lineno"> 3019</span>  z->img_comp[i].data = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>*) (((<span class="keywordtype">size_t</span>) z->img_comp[i].raw_data + 15) & ~15);</div> -<div class="line"><a name="l03020"></a><span class="lineno"> 3020</span>  <span class="keywordflow">if</span> (z->progressive) {</div> -<div class="line"><a name="l03021"></a><span class="lineno"> 3021</span>  <span class="comment">// w2, h2 are multiples of 8 (see above)</span></div> -<div class="line"><a name="l03022"></a><span class="lineno"> 3022</span>  z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8;</div> -<div class="line"><a name="l03023"></a><span class="lineno"> 3023</span>  z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8;</div> -<div class="line"><a name="l03024"></a><span class="lineno"> 3024</span>  z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, <span class="keyword">sizeof</span>(<span class="keywordtype">short</span>), 15);</div> -<div class="line"><a name="l03025"></a><span class="lineno"> 3025</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_coeff == NULL)</div> -<div class="line"><a name="l03026"></a><span class="lineno"> 3026</span>  <span class="keywordflow">return</span> stbi__free_jpeg_components(z, i+1, stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>));</div> -<div class="line"><a name="l03027"></a><span class="lineno"> 3027</span>  z->img_comp[i].coeff = (<span class="keywordtype">short</span>*) (((<span class="keywordtype">size_t</span>) z->img_comp[i].raw_coeff + 15) & ~15);</div> -<div class="line"><a name="l03028"></a><span class="lineno"> 3028</span>  }</div> -<div class="line"><a name="l03029"></a><span class="lineno"> 3029</span>  }</div> -<div class="line"><a name="l03030"></a><span class="lineno"> 3030</span> </div> -<div class="line"><a name="l03031"></a><span class="lineno"> 3031</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03032"></a><span class="lineno"> 3032</span> }</div> -<div class="line"><a name="l03033"></a><span class="lineno"> 3033</span> </div> -<div class="line"><a name="l03034"></a><span class="lineno"> 3034</span> <span class="comment">// use comparisons since in some cases we handle more than one case (e.g. SOF)</span></div> -<div class="line"><a name="l03035"></a><span class="lineno"> 3035</span> <span class="preprocessor">#define stbi__DNL(x) ((x) == 0xdc)</span></div> -<div class="line"><a name="l03036"></a><span class="lineno"> 3036</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__SOI(x) ((x) == 0xd8)</span></div> -<div class="line"><a name="l03037"></a><span class="lineno"> 3037</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__EOI(x) ((x) == 0xd9)</span></div> -<div class="line"><a name="l03038"></a><span class="lineno"> 3038</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2)</span></div> -<div class="line"><a name="l03039"></a><span class="lineno"> 3039</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__SOS(x) ((x) == 0xda)</span></div> -<div class="line"><a name="l03040"></a><span class="lineno"> 3040</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03041"></a><span class="lineno"> 3041</span> <span class="preprocessor">#define stbi__SOF_progressive(x) ((x) == 0xc2)</span></div> -<div class="line"><a name="l03042"></a><span class="lineno"> 3042</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03043"></a><span class="lineno"> 3043</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__decode_jpeg_header(stbi__jpeg *z, <span class="keywordtype">int</span> scan)</div> -<div class="line"><a name="l03044"></a><span class="lineno"> 3044</span> {</div> -<div class="line"><a name="l03045"></a><span class="lineno"> 3045</span>  <span class="keywordtype">int</span> m;</div> -<div class="line"><a name="l03046"></a><span class="lineno"> 3046</span>  z->jfif = 0;</div> -<div class="line"><a name="l03047"></a><span class="lineno"> 3047</span>  z->app14_color_transform = -1; <span class="comment">// valid values are 0,1,2</span></div> -<div class="line"><a name="l03048"></a><span class="lineno"> 3048</span>  z->marker = STBI__MARKER_none; <span class="comment">// initialize cached marker to empty</span></div> -<div class="line"><a name="l03049"></a><span class="lineno"> 3049</span>  m = stbi__get_marker(z);</div> -<div class="line"><a name="l03050"></a><span class="lineno"> 3050</span>  <span class="keywordflow">if</span> (!stbi__SOI(m)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no SOI"</span>,<span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l03051"></a><span class="lineno"> 3051</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_type) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03052"></a><span class="lineno"> 3052</span>  m = stbi__get_marker(z);</div> -<div class="line"><a name="l03053"></a><span class="lineno"> 3053</span>  <span class="keywordflow">while</span> (!stbi__SOF(m)) {</div> -<div class="line"><a name="l03054"></a><span class="lineno"> 3054</span>  <span class="keywordflow">if</span> (!stbi__process_marker(z,m)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03055"></a><span class="lineno"> 3055</span>  m = stbi__get_marker(z);</div> -<div class="line"><a name="l03056"></a><span class="lineno"> 3056</span>  <span class="keywordflow">while</span> (m == STBI__MARKER_none) {</div> -<div class="line"><a name="l03057"></a><span class="lineno"> 3057</span>  <span class="comment">// some files have extra padding after their blocks, so ok, we'll scan</span></div> -<div class="line"><a name="l03058"></a><span class="lineno"> 3058</span>  <span class="keywordflow">if</span> (stbi__at_eof(z->s)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no SOF"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l03059"></a><span class="lineno"> 3059</span>  m = stbi__get_marker(z);</div> -<div class="line"><a name="l03060"></a><span class="lineno"> 3060</span>  }</div> -<div class="line"><a name="l03061"></a><span class="lineno"> 3061</span>  }</div> -<div class="line"><a name="l03062"></a><span class="lineno"> 3062</span>  z->progressive = stbi__SOF_progressive(m);</div> -<div class="line"><a name="l03063"></a><span class="lineno"> 3063</span>  <span class="keywordflow">if</span> (!stbi__process_frame_header(z, scan)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03064"></a><span class="lineno"> 3064</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03065"></a><span class="lineno"> 3065</span> }</div> -<div class="line"><a name="l03066"></a><span class="lineno"> 3066</span> </div> -<div class="line"><a name="l03067"></a><span class="lineno"> 3067</span> <span class="comment">// decode image to YCbCr format</span></div> -<div class="line"><a name="l03068"></a><span class="lineno"> 3068</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__decode_jpeg_image(stbi__jpeg *j)</div> -<div class="line"><a name="l03069"></a><span class="lineno"> 3069</span> {</div> -<div class="line"><a name="l03070"></a><span class="lineno"> 3070</span>  <span class="keywordtype">int</span> m;</div> -<div class="line"><a name="l03071"></a><span class="lineno"> 3071</span>  <span class="keywordflow">for</span> (m = 0; m < 4; m++) {</div> -<div class="line"><a name="l03072"></a><span class="lineno"> 3072</span>  j->img_comp[m].raw_data = NULL;</div> -<div class="line"><a name="l03073"></a><span class="lineno"> 3073</span>  j->img_comp[m].raw_coeff = NULL;</div> -<div class="line"><a name="l03074"></a><span class="lineno"> 3074</span>  }</div> -<div class="line"><a name="l03075"></a><span class="lineno"> 3075</span>  j->restart_interval = 0;</div> -<div class="line"><a name="l03076"></a><span class="lineno"> 3076</span>  <span class="keywordflow">if</span> (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03077"></a><span class="lineno"> 3077</span>  m = stbi__get_marker(j);</div> -<div class="line"><a name="l03078"></a><span class="lineno"> 3078</span>  <span class="keywordflow">while</span> (!stbi__EOI(m)) {</div> -<div class="line"><a name="l03079"></a><span class="lineno"> 3079</span>  <span class="keywordflow">if</span> (stbi__SOS(m)) {</div> -<div class="line"><a name="l03080"></a><span class="lineno"> 3080</span>  <span class="keywordflow">if</span> (!stbi__process_scan_header(j)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03081"></a><span class="lineno"> 3081</span>  <span class="keywordflow">if</span> (!stbi__parse_entropy_coded_data(j)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03082"></a><span class="lineno"> 3082</span>  <span class="keywordflow">if</span> (j->marker == STBI__MARKER_none ) {</div> -<div class="line"><a name="l03083"></a><span class="lineno"> 3083</span>  <span class="comment">// handle 0s at the end of image data from IP Kamera 9060</span></div> -<div class="line"><a name="l03084"></a><span class="lineno"> 3084</span>  <span class="keywordflow">while</span> (!stbi__at_eof(j->s)) {</div> -<div class="line"><a name="l03085"></a><span class="lineno"> 3085</span>  <span class="keywordtype">int</span> x = stbi__get8(j->s);</div> -<div class="line"><a name="l03086"></a><span class="lineno"> 3086</span>  <span class="keywordflow">if</span> (x == 255) {</div> -<div class="line"><a name="l03087"></a><span class="lineno"> 3087</span>  j->marker = stbi__get8(j->s);</div> -<div class="line"><a name="l03088"></a><span class="lineno"> 3088</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l03089"></a><span class="lineno"> 3089</span>  }</div> -<div class="line"><a name="l03090"></a><span class="lineno"> 3090</span>  }</div> -<div class="line"><a name="l03091"></a><span class="lineno"> 3091</span>  <span class="comment">// if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0</span></div> -<div class="line"><a name="l03092"></a><span class="lineno"> 3092</span>  }</div> -<div class="line"><a name="l03093"></a><span class="lineno"> 3093</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stbi__DNL(m)) {</div> -<div class="line"><a name="l03094"></a><span class="lineno"> 3094</span>  <span class="keywordtype">int</span> Ld = stbi__get16be(j->s);</div> -<div class="line"><a name="l03095"></a><span class="lineno"> 3095</span>  stbi__uint32 NL = stbi__get16be(j->s);</div> -<div class="line"><a name="l03096"></a><span class="lineno"> 3096</span>  <span class="keywordflow">if</span> (Ld != 4) stbi__err(<span class="stringliteral">"bad DNL len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l03097"></a><span class="lineno"> 3097</span>  <span class="keywordflow">if</span> (NL != j->s->img_y) stbi__err(<span class="stringliteral">"bad DNL height"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> -<div class="line"><a name="l03098"></a><span class="lineno"> 3098</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03099"></a><span class="lineno"> 3099</span>  <span class="keywordflow">if</span> (!stbi__process_marker(j, m)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03100"></a><span class="lineno"> 3100</span>  }</div> -<div class="line"><a name="l03101"></a><span class="lineno"> 3101</span>  m = stbi__get_marker(j);</div> -<div class="line"><a name="l03102"></a><span class="lineno"> 3102</span>  }</div> -<div class="line"><a name="l03103"></a><span class="lineno"> 3103</span>  <span class="keywordflow">if</span> (j->progressive)</div> -<div class="line"><a name="l03104"></a><span class="lineno"> 3104</span>  stbi__jpeg_finish(j);</div> -<div class="line"><a name="l03105"></a><span class="lineno"> 3105</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03106"></a><span class="lineno"> 3106</span> }</div> -<div class="line"><a name="l03107"></a><span class="lineno"> 3107</span> </div> -<div class="line"><a name="l03108"></a><span class="lineno"> 3108</span> <span class="comment">// static jfif-centered resampling (across block boundaries)</span></div> -<div class="line"><a name="l03109"></a><span class="lineno"> 3109</span> </div> -<div class="line"><a name="l03110"></a><span class="lineno"> 3110</span> <span class="keyword">typedef</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *(*resample_row_func)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in0, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in1,</div> -<div class="line"><a name="l03111"></a><span class="lineno"> 3111</span>  <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs);</div> -<div class="line"><a name="l03112"></a><span class="lineno"> 3112</span> </div> -<div class="line"><a name="l03113"></a><span class="lineno"> 3113</span> <span class="preprocessor">#define stbi__div4(x) ((stbi_uc) ((x) >> 2))</span></div> -<div class="line"><a name="l03114"></a><span class="lineno"> 3114</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03115"></a><span class="lineno"> 3115</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *resample_row_1(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> -<div class="line"><a name="l03116"></a><span class="lineno"> 3116</span> {</div> -<div class="line"><a name="l03117"></a><span class="lineno"> 3117</span>  STBI_NOTUSED(out);</div> -<div class="line"><a name="l03118"></a><span class="lineno"> 3118</span>  STBI_NOTUSED(in_far);</div> -<div class="line"><a name="l03119"></a><span class="lineno"> 3119</span>  STBI_NOTUSED(w);</div> -<div class="line"><a name="l03120"></a><span class="lineno"> 3120</span>  STBI_NOTUSED(hs);</div> -<div class="line"><a name="l03121"></a><span class="lineno"> 3121</span>  <span class="keywordflow">return</span> in_near;</div> -<div class="line"><a name="l03122"></a><span class="lineno"> 3122</span> }</div> -<div class="line"><a name="l03123"></a><span class="lineno"> 3123</span> </div> -<div class="line"><a name="l03124"></a><span class="lineno"> 3124</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>* stbi__resample_row_v_2(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> -<div class="line"><a name="l03125"></a><span class="lineno"> 3125</span> {</div> -<div class="line"><a name="l03126"></a><span class="lineno"> 3126</span>  <span class="comment">// need to generate two samples vertically for every one in input</span></div> -<div class="line"><a name="l03127"></a><span class="lineno"> 3127</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l03128"></a><span class="lineno"> 3128</span>  STBI_NOTUSED(hs);</div> -<div class="line"><a name="l03129"></a><span class="lineno"> 3129</span>  <span class="keywordflow">for</span> (i=0; i < w; ++i)</div> -<div class="line"><a name="l03130"></a><span class="lineno"> 3130</span>  out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2);</div> -<div class="line"><a name="l03131"></a><span class="lineno"> 3131</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03132"></a><span class="lineno"> 3132</span> }</div> -<div class="line"><a name="l03133"></a><span class="lineno"> 3133</span> </div> -<div class="line"><a name="l03134"></a><span class="lineno"> 3134</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>* stbi__resample_row_h_2(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> -<div class="line"><a name="l03135"></a><span class="lineno"> 3135</span> {</div> -<div class="line"><a name="l03136"></a><span class="lineno"> 3136</span>  <span class="comment">// need to generate two samples horizontally for every one in input</span></div> -<div class="line"><a name="l03137"></a><span class="lineno"> 3137</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l03138"></a><span class="lineno"> 3138</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *input = in_near;</div> -<div class="line"><a name="l03139"></a><span class="lineno"> 3139</span> </div> -<div class="line"><a name="l03140"></a><span class="lineno"> 3140</span>  <span class="keywordflow">if</span> (w == 1) {</div> -<div class="line"><a name="l03141"></a><span class="lineno"> 3141</span>  <span class="comment">// if only one sample, can't do any interpolation</span></div> -<div class="line"><a name="l03142"></a><span class="lineno"> 3142</span>  out[0] = out[1] = input[0];</div> -<div class="line"><a name="l03143"></a><span class="lineno"> 3143</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03144"></a><span class="lineno"> 3144</span>  }</div> -<div class="line"><a name="l03145"></a><span class="lineno"> 3145</span> </div> -<div class="line"><a name="l03146"></a><span class="lineno"> 3146</span>  out[0] = input[0];</div> -<div class="line"><a name="l03147"></a><span class="lineno"> 3147</span>  out[1] = stbi__div4(input[0]*3 + input[1] + 2);</div> -<div class="line"><a name="l03148"></a><span class="lineno"> 3148</span>  <span class="keywordflow">for</span> (i=1; i < w-1; ++i) {</div> -<div class="line"><a name="l03149"></a><span class="lineno"> 3149</span>  <span class="keywordtype">int</span> n = 3*input[i]+2;</div> -<div class="line"><a name="l03150"></a><span class="lineno"> 3150</span>  out[i*2+0] = stbi__div4(n+input[i-1]);</div> -<div class="line"><a name="l03151"></a><span class="lineno"> 3151</span>  out[i*2+1] = stbi__div4(n+input[i+1]);</div> -<div class="line"><a name="l03152"></a><span class="lineno"> 3152</span>  }</div> -<div class="line"><a name="l03153"></a><span class="lineno"> 3153</span>  out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2);</div> -<div class="line"><a name="l03154"></a><span class="lineno"> 3154</span>  out[i*2+1] = input[w-1];</div> -<div class="line"><a name="l03155"></a><span class="lineno"> 3155</span> </div> -<div class="line"><a name="l03156"></a><span class="lineno"> 3156</span>  STBI_NOTUSED(in_far);</div> -<div class="line"><a name="l03157"></a><span class="lineno"> 3157</span>  STBI_NOTUSED(hs);</div> -<div class="line"><a name="l03158"></a><span class="lineno"> 3158</span> </div> -<div class="line"><a name="l03159"></a><span class="lineno"> 3159</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03160"></a><span class="lineno"> 3160</span> }</div> -<div class="line"><a name="l03161"></a><span class="lineno"> 3161</span> </div> -<div class="line"><a name="l03162"></a><span class="lineno"> 3162</span> <span class="preprocessor">#define stbi__div16(x) ((stbi_uc) ((x) >> 4))</span></div> -<div class="line"><a name="l03163"></a><span class="lineno"> 3163</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03164"></a><span class="lineno"> 3164</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_hv_2(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> -<div class="line"><a name="l03165"></a><span class="lineno"> 3165</span> {</div> -<div class="line"><a name="l03166"></a><span class="lineno"> 3166</span>  <span class="comment">// need to generate 2x2 samples for every one in input</span></div> -<div class="line"><a name="l03167"></a><span class="lineno"> 3167</span>  <span class="keywordtype">int</span> i,t0,t1;</div> -<div class="line"><a name="l03168"></a><span class="lineno"> 3168</span>  <span class="keywordflow">if</span> (w == 1) {</div> -<div class="line"><a name="l03169"></a><span class="lineno"> 3169</span>  out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);</div> -<div class="line"><a name="l03170"></a><span class="lineno"> 3170</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03171"></a><span class="lineno"> 3171</span>  }</div> -<div class="line"><a name="l03172"></a><span class="lineno"> 3172</span> </div> -<div class="line"><a name="l03173"></a><span class="lineno"> 3173</span>  t1 = 3*in_near[0] + in_far[0];</div> -<div class="line"><a name="l03174"></a><span class="lineno"> 3174</span>  out[0] = stbi__div4(t1+2);</div> -<div class="line"><a name="l03175"></a><span class="lineno"> 3175</span>  <span class="keywordflow">for</span> (i=1; i < w; ++i) {</div> -<div class="line"><a name="l03176"></a><span class="lineno"> 3176</span>  t0 = t1;</div> -<div class="line"><a name="l03177"></a><span class="lineno"> 3177</span>  t1 = 3*in_near[i]+in_far[i];</div> -<div class="line"><a name="l03178"></a><span class="lineno"> 3178</span>  out[i*2-1] = stbi__div16(3*t0 + t1 + 8);</div> -<div class="line"><a name="l03179"></a><span class="lineno"> 3179</span>  out[i*2 ] = stbi__div16(3*t1 + t0 + 8);</div> -<div class="line"><a name="l03180"></a><span class="lineno"> 3180</span>  }</div> -<div class="line"><a name="l03181"></a><span class="lineno"> 3181</span>  out[w*2-1] = stbi__div4(t1+2);</div> -<div class="line"><a name="l03182"></a><span class="lineno"> 3182</span> </div> -<div class="line"><a name="l03183"></a><span class="lineno"> 3183</span>  STBI_NOTUSED(hs);</div> -<div class="line"><a name="l03184"></a><span class="lineno"> 3184</span> </div> -<div class="line"><a name="l03185"></a><span class="lineno"> 3185</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03186"></a><span class="lineno"> 3186</span> }</div> -<div class="line"><a name="l03187"></a><span class="lineno"> 3187</span> </div> -<div class="line"><a name="l03188"></a><span class="lineno"> 3188</span> <span class="preprocessor">#if defined(STBI_SSE2) || defined(STBI_NEON)</span></div> -<div class="line"><a name="l03189"></a><span class="lineno"> 3189</span> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_hv_2_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> -<div class="line"><a name="l03190"></a><span class="lineno"> 3190</span> {</div> -<div class="line"><a name="l03191"></a><span class="lineno"> 3191</span>  <span class="comment">// need to generate 2x2 samples for every one in input</span></div> -<div class="line"><a name="l03192"></a><span class="lineno"> 3192</span>  <span class="keywordtype">int</span> i=0,t0,t1;</div> -<div class="line"><a name="l03193"></a><span class="lineno"> 3193</span> </div> -<div class="line"><a name="l03194"></a><span class="lineno"> 3194</span>  <span class="keywordflow">if</span> (w == 1) {</div> -<div class="line"><a name="l03195"></a><span class="lineno"> 3195</span>  out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);</div> -<div class="line"><a name="l03196"></a><span class="lineno"> 3196</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03197"></a><span class="lineno"> 3197</span>  }</div> -<div class="line"><a name="l03198"></a><span class="lineno"> 3198</span> </div> -<div class="line"><a name="l03199"></a><span class="lineno"> 3199</span>  t1 = 3*in_near[0] + in_far[0];</div> -<div class="line"><a name="l03200"></a><span class="lineno"> 3200</span>  <span class="comment">// process groups of 8 pixels for as long as we can.</span></div> -<div class="line"><a name="l03201"></a><span class="lineno"> 3201</span>  <span class="comment">// note we can't handle the last pixel in a row in this loop</span></div> -<div class="line"><a name="l03202"></a><span class="lineno"> 3202</span>  <span class="comment">// because we need to handle the filter boundary conditions.</span></div> -<div class="line"><a name="l03203"></a><span class="lineno"> 3203</span>  <span class="keywordflow">for</span> (; i < ((w-1) & ~7); i += 8) {</div> -<div class="line"><a name="l03204"></a><span class="lineno"> 3204</span> <span class="preprocessor">#if defined(STBI_SSE2)</span></div> -<div class="line"><a name="l03205"></a><span class="lineno"> 3205</span> <span class="preprocessor"></span> <span class="comment">// load and perform the vertical filtering pass</span></div> -<div class="line"><a name="l03206"></a><span class="lineno"> 3206</span>  <span class="comment">// this uses 3*x + y = 4*x + (y - x)</span></div> -<div class="line"><a name="l03207"></a><span class="lineno"> 3207</span>  __m128i zero = _mm_setzero_si128();</div> -<div class="line"><a name="l03208"></a><span class="lineno"> 3208</span>  __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i));</div> -<div class="line"><a name="l03209"></a><span class="lineno"> 3209</span>  __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i));</div> -<div class="line"><a name="l03210"></a><span class="lineno"> 3210</span>  __m128i farw = _mm_unpacklo_epi8(farb, zero);</div> -<div class="line"><a name="l03211"></a><span class="lineno"> 3211</span>  __m128i nearw = _mm_unpacklo_epi8(nearb, zero);</div> -<div class="line"><a name="l03212"></a><span class="lineno"> 3212</span>  __m128i diff = _mm_sub_epi16(farw, nearw);</div> -<div class="line"><a name="l03213"></a><span class="lineno"> 3213</span>  __m128i nears = _mm_slli_epi16(nearw, 2);</div> -<div class="line"><a name="l03214"></a><span class="lineno"> 3214</span>  __m128i curr = _mm_add_epi16(nears, diff); <span class="comment">// current row</span></div> -<div class="line"><a name="l03215"></a><span class="lineno"> 3215</span> </div> -<div class="line"><a name="l03216"></a><span class="lineno"> 3216</span>  <span class="comment">// horizontal filter works the same based on shifted vers of current</span></div> -<div class="line"><a name="l03217"></a><span class="lineno"> 3217</span>  <span class="comment">// row. "prev" is current row shifted right by 1 pixel; we need to</span></div> -<div class="line"><a name="l03218"></a><span class="lineno"> 3218</span>  <span class="comment">// insert the previous pixel value (from t1).</span></div> -<div class="line"><a name="l03219"></a><span class="lineno"> 3219</span>  <span class="comment">// "next" is current row shifted left by 1 pixel, with first pixel</span></div> -<div class="line"><a name="l03220"></a><span class="lineno"> 3220</span>  <span class="comment">// of next block of 8 pixels added in.</span></div> -<div class="line"><a name="l03221"></a><span class="lineno"> 3221</span>  __m128i prv0 = _mm_slli_si128(curr, 2);</div> -<div class="line"><a name="l03222"></a><span class="lineno"> 3222</span>  __m128i nxt0 = _mm_srli_si128(curr, 2);</div> -<div class="line"><a name="l03223"></a><span class="lineno"> 3223</span>  __m128i prev = _mm_insert_epi16(prv0, t1, 0);</div> -<div class="line"><a name="l03224"></a><span class="lineno"> 3224</span>  __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7);</div> -<div class="line"><a name="l03225"></a><span class="lineno"> 3225</span> </div> -<div class="line"><a name="l03226"></a><span class="lineno"> 3226</span>  <span class="comment">// horizontal filter, polyphase implementation since it's convenient:</span></div> -<div class="line"><a name="l03227"></a><span class="lineno"> 3227</span>  <span class="comment">// even pixels = 3*cur + prev = cur*4 + (prev - cur)</span></div> -<div class="line"><a name="l03228"></a><span class="lineno"> 3228</span>  <span class="comment">// odd pixels = 3*cur + next = cur*4 + (next - cur)</span></div> -<div class="line"><a name="l03229"></a><span class="lineno"> 3229</span>  <span class="comment">// note the shared term.</span></div> -<div class="line"><a name="l03230"></a><span class="lineno"> 3230</span>  __m128i bias = _mm_set1_epi16(8);</div> -<div class="line"><a name="l03231"></a><span class="lineno"> 3231</span>  __m128i curs = _mm_slli_epi16(curr, 2);</div> -<div class="line"><a name="l03232"></a><span class="lineno"> 3232</span>  __m128i prvd = _mm_sub_epi16(prev, curr);</div> -<div class="line"><a name="l03233"></a><span class="lineno"> 3233</span>  __m128i nxtd = _mm_sub_epi16(next, curr);</div> -<div class="line"><a name="l03234"></a><span class="lineno"> 3234</span>  __m128i curb = _mm_add_epi16(curs, bias);</div> -<div class="line"><a name="l03235"></a><span class="lineno"> 3235</span>  __m128i even = _mm_add_epi16(prvd, curb);</div> -<div class="line"><a name="l03236"></a><span class="lineno"> 3236</span>  __m128i odd = _mm_add_epi16(nxtd, curb);</div> -<div class="line"><a name="l03237"></a><span class="lineno"> 3237</span> </div> -<div class="line"><a name="l03238"></a><span class="lineno"> 3238</span>  <span class="comment">// interleave even and odd pixels, then undo scaling.</span></div> -<div class="line"><a name="l03239"></a><span class="lineno"> 3239</span>  __m128i int0 = _mm_unpacklo_epi16(even, odd);</div> -<div class="line"><a name="l03240"></a><span class="lineno"> 3240</span>  __m128i int1 = _mm_unpackhi_epi16(even, odd);</div> -<div class="line"><a name="l03241"></a><span class="lineno"> 3241</span>  __m128i de0 = _mm_srli_epi16(int0, 4);</div> -<div class="line"><a name="l03242"></a><span class="lineno"> 3242</span>  __m128i de1 = _mm_srli_epi16(int1, 4);</div> -<div class="line"><a name="l03243"></a><span class="lineno"> 3243</span> </div> -<div class="line"><a name="l03244"></a><span class="lineno"> 3244</span>  <span class="comment">// pack and write output</span></div> -<div class="line"><a name="l03245"></a><span class="lineno"> 3245</span>  __m128i outv = _mm_packus_epi16(de0, de1);</div> -<div class="line"><a name="l03246"></a><span class="lineno"> 3246</span>  _mm_storeu_si128((__m128i *) (out + i*2), outv);</div> -<div class="line"><a name="l03247"></a><span class="lineno"> 3247</span> <span class="preprocessor">#elif defined(STBI_NEON)</span></div> -<div class="line"><a name="l03248"></a><span class="lineno"> 3248</span> <span class="preprocessor"></span> <span class="comment">// load and perform the vertical filtering pass</span></div> -<div class="line"><a name="l03249"></a><span class="lineno"> 3249</span>  <span class="comment">// this uses 3*x + y = 4*x + (y - x)</span></div> -<div class="line"><a name="l03250"></a><span class="lineno"> 3250</span>  uint8x8_t farb = vld1_u8(in_far + i);</div> -<div class="line"><a name="l03251"></a><span class="lineno"> 3251</span>  uint8x8_t nearb = vld1_u8(in_near + i);</div> -<div class="line"><a name="l03252"></a><span class="lineno"> 3252</span>  int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb));</div> -<div class="line"><a name="l03253"></a><span class="lineno"> 3253</span>  int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2));</div> -<div class="line"><a name="l03254"></a><span class="lineno"> 3254</span>  int16x8_t curr = vaddq_s16(nears, diff); <span class="comment">// current row</span></div> -<div class="line"><a name="l03255"></a><span class="lineno"> 3255</span> </div> -<div class="line"><a name="l03256"></a><span class="lineno"> 3256</span>  <span class="comment">// horizontal filter works the same based on shifted vers of current</span></div> -<div class="line"><a name="l03257"></a><span class="lineno"> 3257</span>  <span class="comment">// row. "prev" is current row shifted right by 1 pixel; we need to</span></div> -<div class="line"><a name="l03258"></a><span class="lineno"> 3258</span>  <span class="comment">// insert the previous pixel value (from t1).</span></div> -<div class="line"><a name="l03259"></a><span class="lineno"> 3259</span>  <span class="comment">// "next" is current row shifted left by 1 pixel, with first pixel</span></div> -<div class="line"><a name="l03260"></a><span class="lineno"> 3260</span>  <span class="comment">// of next block of 8 pixels added in.</span></div> -<div class="line"><a name="l03261"></a><span class="lineno"> 3261</span>  int16x8_t prv0 = vextq_s16(curr, curr, 7);</div> -<div class="line"><a name="l03262"></a><span class="lineno"> 3262</span>  int16x8_t nxt0 = vextq_s16(curr, curr, 1);</div> -<div class="line"><a name="l03263"></a><span class="lineno"> 3263</span>  int16x8_t prev = vsetq_lane_s16(t1, prv0, 0);</div> -<div class="line"><a name="l03264"></a><span class="lineno"> 3264</span>  int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7);</div> -<div class="line"><a name="l03265"></a><span class="lineno"> 3265</span> </div> -<div class="line"><a name="l03266"></a><span class="lineno"> 3266</span>  <span class="comment">// horizontal filter, polyphase implementation since it's convenient:</span></div> -<div class="line"><a name="l03267"></a><span class="lineno"> 3267</span>  <span class="comment">// even pixels = 3*cur + prev = cur*4 + (prev - cur)</span></div> -<div class="line"><a name="l03268"></a><span class="lineno"> 3268</span>  <span class="comment">// odd pixels = 3*cur + next = cur*4 + (next - cur)</span></div> -<div class="line"><a name="l03269"></a><span class="lineno"> 3269</span>  <span class="comment">// note the shared term.</span></div> -<div class="line"><a name="l03270"></a><span class="lineno"> 3270</span>  int16x8_t curs = vshlq_n_s16(curr, 2);</div> -<div class="line"><a name="l03271"></a><span class="lineno"> 3271</span>  int16x8_t prvd = vsubq_s16(prev, curr);</div> -<div class="line"><a name="l03272"></a><span class="lineno"> 3272</span>  int16x8_t nxtd = vsubq_s16(next, curr);</div> -<div class="line"><a name="l03273"></a><span class="lineno"> 3273</span>  int16x8_t even = vaddq_s16(curs, prvd);</div> -<div class="line"><a name="l03274"></a><span class="lineno"> 3274</span>  int16x8_t odd = vaddq_s16(curs, nxtd);</div> +<div class="line"><a name="l02929"></a><span class="lineno"> 2929</span> <span class="preprocessor">#undef dct_long_mul</span></div> +<div class="line"><a name="l02930"></a><span class="lineno"> 2930</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_long_mac</span></div> +<div class="line"><a name="l02931"></a><span class="lineno"> 2931</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_widen</span></div> +<div class="line"><a name="l02932"></a><span class="lineno"> 2932</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wadd</span></div> +<div class="line"><a name="l02933"></a><span class="lineno"> 2933</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_wsub</span></div> +<div class="line"><a name="l02934"></a><span class="lineno"> 2934</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_bfly32o</span></div> +<div class="line"><a name="l02935"></a><span class="lineno"> 2935</span> <span class="preprocessor"></span><span class="preprocessor">#undef dct_pass</span></div> +<div class="line"><a name="l02936"></a><span class="lineno"> 2936</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l02937"></a><span class="lineno"> 2937</span> </div> +<div class="line"><a name="l02938"></a><span class="lineno"> 2938</span> <span class="preprocessor">#endif // STBI_NEON</span></div> +<div class="line"><a name="l02939"></a><span class="lineno"> 2939</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02940"></a><span class="lineno"> 2940</span> <span class="preprocessor">#define STBI__MARKER_none 0xff</span></div> +<div class="line"><a name="l02941"></a><span class="lineno"> 2941</span> <span class="preprocessor"></span><span class="comment">// if there's a pending marker from the entropy stream, return that</span></div> +<div class="line"><a name="l02942"></a><span class="lineno"> 2942</span> <span class="comment">// otherwise, fetch from the stream and get a marker. if there's no</span></div> +<div class="line"><a name="l02943"></a><span class="lineno"> 2943</span> <span class="comment">// marker, return 0xff, which is never a valid marker value</span></div> +<div class="line"><a name="l02944"></a><span class="lineno"> 2944</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__get_marker(stbi__jpeg *j)</div> +<div class="line"><a name="l02945"></a><span class="lineno"> 2945</span> {</div> +<div class="line"><a name="l02946"></a><span class="lineno"> 2946</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> x;</div> +<div class="line"><a name="l02947"></a><span class="lineno"> 2947</span>  <span class="keywordflow">if</span> (j->marker != STBI__MARKER_none) {</div> +<div class="line"><a name="l02948"></a><span class="lineno"> 2948</span>  x = j->marker;</div> +<div class="line"><a name="l02949"></a><span class="lineno"> 2949</span>  j->marker = STBI__MARKER_none;</div> +<div class="line"><a name="l02950"></a><span class="lineno"> 2950</span>  <span class="keywordflow">return</span> x;</div> +<div class="line"><a name="l02951"></a><span class="lineno"> 2951</span>  }</div> +<div class="line"><a name="l02952"></a><span class="lineno"> 2952</span>  x = stbi__get8(j->s);</div> +<div class="line"><a name="l02953"></a><span class="lineno"> 2953</span>  <span class="keywordflow">if</span> (x != 0xff)</div> +<div class="line"><a name="l02954"></a><span class="lineno"> 2954</span>  <span class="keywordflow">return</span> STBI__MARKER_none;</div> +<div class="line"><a name="l02955"></a><span class="lineno"> 2955</span>  <span class="keywordflow">while</span> (x == 0xff)</div> +<div class="line"><a name="l02956"></a><span class="lineno"> 2956</span>  x = stbi__get8(j->s); <span class="comment">// consume repeated 0xff fill bytes</span></div> +<div class="line"><a name="l02957"></a><span class="lineno"> 2957</span>  <span class="keywordflow">return</span> x;</div> +<div class="line"><a name="l02958"></a><span class="lineno"> 2958</span> }</div> +<div class="line"><a name="l02959"></a><span class="lineno"> 2959</span> </div> +<div class="line"><a name="l02960"></a><span class="lineno"> 2960</span> <span class="comment">// in each scan, we'll have scan_n components, and the order</span></div> +<div class="line"><a name="l02961"></a><span class="lineno"> 2961</span> <span class="comment">// of the components is specified by order[]</span></div> +<div class="line"><a name="l02962"></a><span class="lineno"> 2962</span> <span class="preprocessor">#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7)</span></div> +<div class="line"><a name="l02963"></a><span class="lineno"> 2963</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l02964"></a><span class="lineno"> 2964</span> <span class="comment">// after a restart interval, stbi__jpeg_reset the entropy decoder and</span></div> +<div class="line"><a name="l02965"></a><span class="lineno"> 2965</span> <span class="comment">// the dc prediction</span></div> +<div class="line"><a name="l02966"></a><span class="lineno"> 2966</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__jpeg_reset(stbi__jpeg *j)</div> +<div class="line"><a name="l02967"></a><span class="lineno"> 2967</span> {</div> +<div class="line"><a name="l02968"></a><span class="lineno"> 2968</span>  j->code_bits = 0;</div> +<div class="line"><a name="l02969"></a><span class="lineno"> 2969</span>  j->code_buffer = 0;</div> +<div class="line"><a name="l02970"></a><span class="lineno"> 2970</span>  j->nomore = 0;</div> +<div class="line"><a name="l02971"></a><span class="lineno"> 2971</span>  j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred =</div> +<div class="line"><a name="l02972"></a><span class="lineno"> 2972</span>  j->img_comp[3].dc_pred = 0;</div> +<div class="line"><a name="l02973"></a><span class="lineno"> 2973</span>  j->marker = STBI__MARKER_none;</div> +<div class="line"><a name="l02974"></a><span class="lineno"> 2974</span>  j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff;</div> +<div class="line"><a name="l02975"></a><span class="lineno"> 2975</span>  j->eob_run = 0;</div> +<div class="line"><a name="l02976"></a><span class="lineno"> 2976</span>  <span class="comment">// no more than 1<<31 MCUs if no restart_interal? that's plenty safe,</span></div> +<div class="line"><a name="l02977"></a><span class="lineno"> 2977</span>  <span class="comment">// since we don't even allow 1<<30 pixels</span></div> +<div class="line"><a name="l02978"></a><span class="lineno"> 2978</span> }</div> +<div class="line"><a name="l02979"></a><span class="lineno"> 2979</span> </div> +<div class="line"><a name="l02980"></a><span class="lineno"> 2980</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_entropy_coded_data(stbi__jpeg *z)</div> +<div class="line"><a name="l02981"></a><span class="lineno"> 2981</span> {</div> +<div class="line"><a name="l02982"></a><span class="lineno"> 2982</span>  stbi__jpeg_reset(z);</div> +<div class="line"><a name="l02983"></a><span class="lineno"> 2983</span>  <span class="keywordflow">if</span> (!z->progressive) {</div> +<div class="line"><a name="l02984"></a><span class="lineno"> 2984</span>  <span class="keywordflow">if</span> (z->scan_n == 1) {</div> +<div class="line"><a name="l02985"></a><span class="lineno"> 2985</span>  <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l02986"></a><span class="lineno"> 2986</span>  STBI_SIMD_ALIGN(<span class="keywordtype">short</span>, data[64]);</div> +<div class="line"><a name="l02987"></a><span class="lineno"> 2987</span>  <span class="keywordtype">int</span> n = z->order[0];</div> +<div class="line"><a name="l02988"></a><span class="lineno"> 2988</span>  <span class="comment">// non-interleaved data, we just need to process one block at a</span></div> +<div class="line"><a name="l02989"></a><span class="lineno"> 2989</span>  <span class="comment">// time, in trivial scanline order number of blocks to do just</span></div> +<div class="line"><a name="l02990"></a><span class="lineno"> 2990</span>  <span class="comment">// depends on how many actual "pixels" this component has,</span></div> +<div class="line"><a name="l02991"></a><span class="lineno"> 2991</span>  <span class="comment">// independent of interleaved MCU blocking and such</span></div> +<div class="line"><a name="l02992"></a><span class="lineno"> 2992</span>  <span class="keywordtype">int</span> w = (z->img_comp[n].x + 7) >> 3;</div> +<div class="line"><a name="l02993"></a><span class="lineno"> 2993</span>  <span class="keywordtype">int</span> h = (z->img_comp[n].y + 7) >> 3;</div> +<div class="line"><a name="l02994"></a><span class="lineno"> 2994</span>  <span class="keywordflow">for</span> (j = 0; j < h; ++j) {</div> +<div class="line"><a name="l02995"></a><span class="lineno"> 2995</span>  <span class="keywordflow">for</span> (i = 0; i < w; ++i) {</div> +<div class="line"><a name="l02996"></a><span class="lineno"> 2996</span>  <span class="keywordtype">int</span> ha = z->img_comp[n].ha;</div> +<div class="line"><a name="l02997"></a><span class="lineno"> 2997</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block(</div> +<div class="line"><a name="l02998"></a><span class="lineno"> 2998</span>  z, data, z->huff_dc + z->img_comp[n].hd,</div> +<div class="line"><a name="l02999"></a><span class="lineno"> 2999</span>  z->huff_ac + ha, z->fast_ac[ha], n,</div> +<div class="line"><a name="l03000"></a><span class="lineno"> 3000</span>  z->dequant[z->img_comp[n].tq]))</div> +<div class="line"><a name="l03001"></a><span class="lineno"> 3001</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03002"></a><span class="lineno"> 3002</span>  z->idct_block_kernel(z->img_comp[n].data +</div> +<div class="line"><a name="l03003"></a><span class="lineno"> 3003</span>  z->img_comp[n].w2 * j * 8 + i * 8,</div> +<div class="line"><a name="l03004"></a><span class="lineno"> 3004</span>  z->img_comp[n].w2, data);</div> +<div class="line"><a name="l03005"></a><span class="lineno"> 3005</span>  <span class="comment">// every data block is an MCU, so countdown the restart</span></div> +<div class="line"><a name="l03006"></a><span class="lineno"> 3006</span>  <span class="comment">// interval</span></div> +<div class="line"><a name="l03007"></a><span class="lineno"> 3007</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> +<div class="line"><a name="l03008"></a><span class="lineno"> 3008</span>  <span class="keywordflow">if</span> (z->code_bits < 24)</div> +<div class="line"><a name="l03009"></a><span class="lineno"> 3009</span>  stbi__grow_buffer_unsafe(z);</div> +<div class="line"><a name="l03010"></a><span class="lineno"> 3010</span>  <span class="comment">// if it's NOT a restart, then just bail, so we get</span></div> +<div class="line"><a name="l03011"></a><span class="lineno"> 3011</span>  <span class="comment">// corrupt data rather than no data</span></div> +<div class="line"><a name="l03012"></a><span class="lineno"> 3012</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker))</div> +<div class="line"><a name="l03013"></a><span class="lineno"> 3013</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03014"></a><span class="lineno"> 3014</span>  stbi__jpeg_reset(z);</div> +<div class="line"><a name="l03015"></a><span class="lineno"> 3015</span>  }</div> +<div class="line"><a name="l03016"></a><span class="lineno"> 3016</span>  }</div> +<div class="line"><a name="l03017"></a><span class="lineno"> 3017</span>  }</div> +<div class="line"><a name="l03018"></a><span class="lineno"> 3018</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03019"></a><span class="lineno"> 3019</span>  } <span class="keywordflow">else</span> { <span class="comment">// interleaved</span></div> +<div class="line"><a name="l03020"></a><span class="lineno"> 3020</span>  <span class="keywordtype">int</span> i, j, k, x, y;</div> +<div class="line"><a name="l03021"></a><span class="lineno"> 3021</span>  STBI_SIMD_ALIGN(<span class="keywordtype">short</span>, data[64]);</div> +<div class="line"><a name="l03022"></a><span class="lineno"> 3022</span>  <span class="keywordflow">for</span> (j = 0; j < z->img_mcu_y; ++j) {</div> +<div class="line"><a name="l03023"></a><span class="lineno"> 3023</span>  <span class="keywordflow">for</span> (i = 0; i < z->img_mcu_x; ++i) {</div> +<div class="line"><a name="l03024"></a><span class="lineno"> 3024</span>  <span class="comment">// scan an interleaved mcu... process scan_n components in</span></div> +<div class="line"><a name="l03025"></a><span class="lineno"> 3025</span>  <span class="comment">// order</span></div> +<div class="line"><a name="l03026"></a><span class="lineno"> 3026</span>  <span class="keywordflow">for</span> (k = 0; k < z->scan_n; ++k) {</div> +<div class="line"><a name="l03027"></a><span class="lineno"> 3027</span>  <span class="keywordtype">int</span> n = z->order[k];</div> +<div class="line"><a name="l03028"></a><span class="lineno"> 3028</span>  <span class="comment">// scan out an mcu's worth of this component; that's</span></div> +<div class="line"><a name="l03029"></a><span class="lineno"> 3029</span>  <span class="comment">// just determined by the basic H and V specified for</span></div> +<div class="line"><a name="l03030"></a><span class="lineno"> 3030</span>  <span class="comment">// the component</span></div> +<div class="line"><a name="l03031"></a><span class="lineno"> 3031</span>  <span class="keywordflow">for</span> (y = 0; y < z->img_comp[n].v; ++y) {</div> +<div class="line"><a name="l03032"></a><span class="lineno"> 3032</span>  <span class="keywordflow">for</span> (x = 0; x < z->img_comp[n].h; ++x) {</div> +<div class="line"><a name="l03033"></a><span class="lineno"> 3033</span>  <span class="keywordtype">int</span> x2 = (i * z->img_comp[n].h + x) * 8;</div> +<div class="line"><a name="l03034"></a><span class="lineno"> 3034</span>  <span class="keywordtype">int</span> y2 = (j * z->img_comp[n].v + y) * 8;</div> +<div class="line"><a name="l03035"></a><span class="lineno"> 3035</span>  <span class="keywordtype">int</span> ha = z->img_comp[n].ha;</div> +<div class="line"><a name="l03036"></a><span class="lineno"> 3036</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block(</div> +<div class="line"><a name="l03037"></a><span class="lineno"> 3037</span>  z, data, z->huff_dc + z->img_comp[n].hd,</div> +<div class="line"><a name="l03038"></a><span class="lineno"> 3038</span>  z->huff_ac + ha, z->fast_ac[ha], n,</div> +<div class="line"><a name="l03039"></a><span class="lineno"> 3039</span>  z->dequant[z->img_comp[n].tq]))</div> +<div class="line"><a name="l03040"></a><span class="lineno"> 3040</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03041"></a><span class="lineno"> 3041</span>  z->idct_block_kernel(</div> +<div class="line"><a name="l03042"></a><span class="lineno"> 3042</span>  z->img_comp[n].data +</div> +<div class="line"><a name="l03043"></a><span class="lineno"> 3043</span>  z->img_comp[n].w2 * y2 + x2,</div> +<div class="line"><a name="l03044"></a><span class="lineno"> 3044</span>  z->img_comp[n].w2, data);</div> +<div class="line"><a name="l03045"></a><span class="lineno"> 3045</span>  }</div> +<div class="line"><a name="l03046"></a><span class="lineno"> 3046</span>  }</div> +<div class="line"><a name="l03047"></a><span class="lineno"> 3047</span>  }</div> +<div class="line"><a name="l03048"></a><span class="lineno"> 3048</span>  <span class="comment">// after all interleaved components, that's an interleaved</span></div> +<div class="line"><a name="l03049"></a><span class="lineno"> 3049</span>  <span class="comment">// MCU, so now count down the restart interval</span></div> +<div class="line"><a name="l03050"></a><span class="lineno"> 3050</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> +<div class="line"><a name="l03051"></a><span class="lineno"> 3051</span>  <span class="keywordflow">if</span> (z->code_bits < 24)</div> +<div class="line"><a name="l03052"></a><span class="lineno"> 3052</span>  stbi__grow_buffer_unsafe(z);</div> +<div class="line"><a name="l03053"></a><span class="lineno"> 3053</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker))</div> +<div class="line"><a name="l03054"></a><span class="lineno"> 3054</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03055"></a><span class="lineno"> 3055</span>  stbi__jpeg_reset(z);</div> +<div class="line"><a name="l03056"></a><span class="lineno"> 3056</span>  }</div> +<div class="line"><a name="l03057"></a><span class="lineno"> 3057</span>  }</div> +<div class="line"><a name="l03058"></a><span class="lineno"> 3058</span>  }</div> +<div class="line"><a name="l03059"></a><span class="lineno"> 3059</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03060"></a><span class="lineno"> 3060</span>  }</div> +<div class="line"><a name="l03061"></a><span class="lineno"> 3061</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l03062"></a><span class="lineno"> 3062</span>  <span class="keywordflow">if</span> (z->scan_n == 1) {</div> +<div class="line"><a name="l03063"></a><span class="lineno"> 3063</span>  <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l03064"></a><span class="lineno"> 3064</span>  <span class="keywordtype">int</span> n = z->order[0];</div> +<div class="line"><a name="l03065"></a><span class="lineno"> 3065</span>  <span class="comment">// non-interleaved data, we just need to process one block at a</span></div> +<div class="line"><a name="l03066"></a><span class="lineno"> 3066</span>  <span class="comment">// time, in trivial scanline order number of blocks to do just</span></div> +<div class="line"><a name="l03067"></a><span class="lineno"> 3067</span>  <span class="comment">// depends on how many actual "pixels" this component has,</span></div> +<div class="line"><a name="l03068"></a><span class="lineno"> 3068</span>  <span class="comment">// independent of interleaved MCU blocking and such</span></div> +<div class="line"><a name="l03069"></a><span class="lineno"> 3069</span>  <span class="keywordtype">int</span> w = (z->img_comp[n].x + 7) >> 3;</div> +<div class="line"><a name="l03070"></a><span class="lineno"> 3070</span>  <span class="keywordtype">int</span> h = (z->img_comp[n].y + 7) >> 3;</div> +<div class="line"><a name="l03071"></a><span class="lineno"> 3071</span>  <span class="keywordflow">for</span> (j = 0; j < h; ++j) {</div> +<div class="line"><a name="l03072"></a><span class="lineno"> 3072</span>  <span class="keywordflow">for</span> (i = 0; i < w; ++i) {</div> +<div class="line"><a name="l03073"></a><span class="lineno"> 3073</span>  <span class="keywordtype">short</span> *data = z->img_comp[n].coeff +</div> +<div class="line"><a name="l03074"></a><span class="lineno"> 3074</span>  64 * (i + j * z->img_comp[n].coeff_w);</div> +<div class="line"><a name="l03075"></a><span class="lineno"> 3075</span>  <span class="keywordflow">if</span> (z->spec_start == 0) {</div> +<div class="line"><a name="l03076"></a><span class="lineno"> 3076</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block_prog_dc(</div> +<div class="line"><a name="l03077"></a><span class="lineno"> 3077</span>  z, data, &z->huff_dc[z->img_comp[n].hd], n))</div> +<div class="line"><a name="l03078"></a><span class="lineno"> 3078</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03079"></a><span class="lineno"> 3079</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l03080"></a><span class="lineno"> 3080</span>  <span class="keywordtype">int</span> ha = z->img_comp[n].ha;</div> +<div class="line"><a name="l03081"></a><span class="lineno"> 3081</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block_prog_ac(</div> +<div class="line"><a name="l03082"></a><span class="lineno"> 3082</span>  z, data, &z->huff_ac[ha], z->fast_ac[ha]))</div> +<div class="line"><a name="l03083"></a><span class="lineno"> 3083</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03084"></a><span class="lineno"> 3084</span>  }</div> +<div class="line"><a name="l03085"></a><span class="lineno"> 3085</span>  <span class="comment">// every data block is an MCU, so countdown the restart</span></div> +<div class="line"><a name="l03086"></a><span class="lineno"> 3086</span>  <span class="comment">// interval</span></div> +<div class="line"><a name="l03087"></a><span class="lineno"> 3087</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> +<div class="line"><a name="l03088"></a><span class="lineno"> 3088</span>  <span class="keywordflow">if</span> (z->code_bits < 24)</div> +<div class="line"><a name="l03089"></a><span class="lineno"> 3089</span>  stbi__grow_buffer_unsafe(z);</div> +<div class="line"><a name="l03090"></a><span class="lineno"> 3090</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker))</div> +<div class="line"><a name="l03091"></a><span class="lineno"> 3091</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03092"></a><span class="lineno"> 3092</span>  stbi__jpeg_reset(z);</div> +<div class="line"><a name="l03093"></a><span class="lineno"> 3093</span>  }</div> +<div class="line"><a name="l03094"></a><span class="lineno"> 3094</span>  }</div> +<div class="line"><a name="l03095"></a><span class="lineno"> 3095</span>  }</div> +<div class="line"><a name="l03096"></a><span class="lineno"> 3096</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03097"></a><span class="lineno"> 3097</span>  } <span class="keywordflow">else</span> { <span class="comment">// interleaved</span></div> +<div class="line"><a name="l03098"></a><span class="lineno"> 3098</span>  <span class="keywordtype">int</span> i, j, k, x, y;</div> +<div class="line"><a name="l03099"></a><span class="lineno"> 3099</span>  <span class="keywordflow">for</span> (j = 0; j < z->img_mcu_y; ++j) {</div> +<div class="line"><a name="l03100"></a><span class="lineno"> 3100</span>  <span class="keywordflow">for</span> (i = 0; i < z->img_mcu_x; ++i) {</div> +<div class="line"><a name="l03101"></a><span class="lineno"> 3101</span>  <span class="comment">// scan an interleaved mcu... process scan_n components in</span></div> +<div class="line"><a name="l03102"></a><span class="lineno"> 3102</span>  <span class="comment">// order</span></div> +<div class="line"><a name="l03103"></a><span class="lineno"> 3103</span>  <span class="keywordflow">for</span> (k = 0; k < z->scan_n; ++k) {</div> +<div class="line"><a name="l03104"></a><span class="lineno"> 3104</span>  <span class="keywordtype">int</span> n = z->order[k];</div> +<div class="line"><a name="l03105"></a><span class="lineno"> 3105</span>  <span class="comment">// scan out an mcu's worth of this component; that's</span></div> +<div class="line"><a name="l03106"></a><span class="lineno"> 3106</span>  <span class="comment">// just determined by the basic H and V specified for</span></div> +<div class="line"><a name="l03107"></a><span class="lineno"> 3107</span>  <span class="comment">// the component</span></div> +<div class="line"><a name="l03108"></a><span class="lineno"> 3108</span>  <span class="keywordflow">for</span> (y = 0; y < z->img_comp[n].v; ++y) {</div> +<div class="line"><a name="l03109"></a><span class="lineno"> 3109</span>  <span class="keywordflow">for</span> (x = 0; x < z->img_comp[n].h; ++x) {</div> +<div class="line"><a name="l03110"></a><span class="lineno"> 3110</span>  <span class="keywordtype">int</span> x2 = (i * z->img_comp[n].h + x);</div> +<div class="line"><a name="l03111"></a><span class="lineno"> 3111</span>  <span class="keywordtype">int</span> y2 = (j * z->img_comp[n].v + y);</div> +<div class="line"><a name="l03112"></a><span class="lineno"> 3112</span>  <span class="keywordtype">short</span> *data =</div> +<div class="line"><a name="l03113"></a><span class="lineno"> 3113</span>  z->img_comp[n].coeff +</div> +<div class="line"><a name="l03114"></a><span class="lineno"> 3114</span>  64 * (x2 + y2 * z->img_comp[n].coeff_w);</div> +<div class="line"><a name="l03115"></a><span class="lineno"> 3115</span>  <span class="keywordflow">if</span> (!stbi__jpeg_decode_block_prog_dc(</div> +<div class="line"><a name="l03116"></a><span class="lineno"> 3116</span>  z, data, &z->huff_dc[z->img_comp[n].hd],</div> +<div class="line"><a name="l03117"></a><span class="lineno"> 3117</span>  n))</div> +<div class="line"><a name="l03118"></a><span class="lineno"> 3118</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03119"></a><span class="lineno"> 3119</span>  }</div> +<div class="line"><a name="l03120"></a><span class="lineno"> 3120</span>  }</div> +<div class="line"><a name="l03121"></a><span class="lineno"> 3121</span>  }</div> +<div class="line"><a name="l03122"></a><span class="lineno"> 3122</span>  <span class="comment">// after all interleaved components, that's an interleaved</span></div> +<div class="line"><a name="l03123"></a><span class="lineno"> 3123</span>  <span class="comment">// MCU, so now count down the restart interval</span></div> +<div class="line"><a name="l03124"></a><span class="lineno"> 3124</span>  <span class="keywordflow">if</span> (--z->todo <= 0) {</div> +<div class="line"><a name="l03125"></a><span class="lineno"> 3125</span>  <span class="keywordflow">if</span> (z->code_bits < 24)</div> +<div class="line"><a name="l03126"></a><span class="lineno"> 3126</span>  stbi__grow_buffer_unsafe(z);</div> +<div class="line"><a name="l03127"></a><span class="lineno"> 3127</span>  <span class="keywordflow">if</span> (!STBI__RESTART(z->marker))</div> +<div class="line"><a name="l03128"></a><span class="lineno"> 3128</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03129"></a><span class="lineno"> 3129</span>  stbi__jpeg_reset(z);</div> +<div class="line"><a name="l03130"></a><span class="lineno"> 3130</span>  }</div> +<div class="line"><a name="l03131"></a><span class="lineno"> 3131</span>  }</div> +<div class="line"><a name="l03132"></a><span class="lineno"> 3132</span>  }</div> +<div class="line"><a name="l03133"></a><span class="lineno"> 3133</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03134"></a><span class="lineno"> 3134</span>  }</div> +<div class="line"><a name="l03135"></a><span class="lineno"> 3135</span>  }</div> +<div class="line"><a name="l03136"></a><span class="lineno"> 3136</span> }</div> +<div class="line"><a name="l03137"></a><span class="lineno"> 3137</span> </div> +<div class="line"><a name="l03138"></a><span class="lineno"> 3138</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__jpeg_dequantize(<span class="keywordtype">short</span> *data, stbi__uint16 *dequant)</div> +<div class="line"><a name="l03139"></a><span class="lineno"> 3139</span> {</div> +<div class="line"><a name="l03140"></a><span class="lineno"> 3140</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03141"></a><span class="lineno"> 3141</span>  <span class="keywordflow">for</span> (i = 0; i < 64; ++i)</div> +<div class="line"><a name="l03142"></a><span class="lineno"> 3142</span>  data[i] *= dequant[i];</div> +<div class="line"><a name="l03143"></a><span class="lineno"> 3143</span> }</div> +<div class="line"><a name="l03144"></a><span class="lineno"> 3144</span> </div> +<div class="line"><a name="l03145"></a><span class="lineno"> 3145</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__jpeg_finish(stbi__jpeg *z)</div> +<div class="line"><a name="l03146"></a><span class="lineno"> 3146</span> {</div> +<div class="line"><a name="l03147"></a><span class="lineno"> 3147</span>  <span class="keywordflow">if</span> (z->progressive) {</div> +<div class="line"><a name="l03148"></a><span class="lineno"> 3148</span>  <span class="comment">// dequantize and idct the data</span></div> +<div class="line"><a name="l03149"></a><span class="lineno"> 3149</span>  <span class="keywordtype">int</span> i, j, n;</div> +<div class="line"><a name="l03150"></a><span class="lineno"> 3150</span>  <span class="keywordflow">for</span> (n = 0; n < z->s->img_n; ++n) {</div> +<div class="line"><a name="l03151"></a><span class="lineno"> 3151</span>  <span class="keywordtype">int</span> w = (z->img_comp[n].x + 7) >> 3;</div> +<div class="line"><a name="l03152"></a><span class="lineno"> 3152</span>  <span class="keywordtype">int</span> h = (z->img_comp[n].y + 7) >> 3;</div> +<div class="line"><a name="l03153"></a><span class="lineno"> 3153</span>  <span class="keywordflow">for</span> (j = 0; j < h; ++j) {</div> +<div class="line"><a name="l03154"></a><span class="lineno"> 3154</span>  <span class="keywordflow">for</span> (i = 0; i < w; ++i) {</div> +<div class="line"><a name="l03155"></a><span class="lineno"> 3155</span>  <span class="keywordtype">short</span> *data = z->img_comp[n].coeff +</div> +<div class="line"><a name="l03156"></a><span class="lineno"> 3156</span>  64 * (i + j * z->img_comp[n].coeff_w);</div> +<div class="line"><a name="l03157"></a><span class="lineno"> 3157</span>  stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]);</div> +<div class="line"><a name="l03158"></a><span class="lineno"> 3158</span>  z->idct_block_kernel(z->img_comp[n].data +</div> +<div class="line"><a name="l03159"></a><span class="lineno"> 3159</span>  z->img_comp[n].w2 * j * 8 + i * 8,</div> +<div class="line"><a name="l03160"></a><span class="lineno"> 3160</span>  z->img_comp[n].w2, data);</div> +<div class="line"><a name="l03161"></a><span class="lineno"> 3161</span>  }</div> +<div class="line"><a name="l03162"></a><span class="lineno"> 3162</span>  }</div> +<div class="line"><a name="l03163"></a><span class="lineno"> 3163</span>  }</div> +<div class="line"><a name="l03164"></a><span class="lineno"> 3164</span>  }</div> +<div class="line"><a name="l03165"></a><span class="lineno"> 3165</span> }</div> +<div class="line"><a name="l03166"></a><span class="lineno"> 3166</span> </div> +<div class="line"><a name="l03167"></a><span class="lineno"> 3167</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__process_marker(stbi__jpeg *z, <span class="keywordtype">int</span> m)</div> +<div class="line"><a name="l03168"></a><span class="lineno"> 3168</span> {</div> +<div class="line"><a name="l03169"></a><span class="lineno"> 3169</span>  <span class="keywordtype">int</span> <a class="code" href="namespaceyage.html#ad5a9307442e5daa8810aff942564a822ad20caec3b48a1eef164cb4ca81ba2587">L</a>;</div> +<div class="line"><a name="l03170"></a><span class="lineno"> 3170</span>  <span class="keywordflow">switch</span> (m) {</div> +<div class="line"><a name="l03171"></a><span class="lineno"> 3171</span>  <span class="keywordflow">case</span> STBI__MARKER_none: <span class="comment">// no marker found</span></div> +<div class="line"><a name="l03172"></a><span class="lineno"> 3172</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"expected marker"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03173"></a><span class="lineno"> 3173</span> </div> +<div class="line"><a name="l03174"></a><span class="lineno"> 3174</span>  <span class="keywordflow">case</span> 0xDD: <span class="comment">// DRI - specify restart interval</span></div> +<div class="line"><a name="l03175"></a><span class="lineno"> 3175</span>  <span class="keywordflow">if</span> (stbi__get16be(z->s) != 4)</div> +<div class="line"><a name="l03176"></a><span class="lineno"> 3176</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DRI len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03177"></a><span class="lineno"> 3177</span>  z->restart_interval = stbi__get16be(z->s);</div> +<div class="line"><a name="l03178"></a><span class="lineno"> 3178</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03179"></a><span class="lineno"> 3179</span> </div> +<div class="line"><a name="l03180"></a><span class="lineno"> 3180</span>  <span class="keywordflow">case</span> 0xDB: <span class="comment">// DQT - define quantization table</span></div> +<div class="line"><a name="l03181"></a><span class="lineno"> 3181</span>  L = stbi__get16be(z->s) - 2;</div> +<div class="line"><a name="l03182"></a><span class="lineno"> 3182</span>  <span class="keywordflow">while</span> (L > 0) {</div> +<div class="line"><a name="l03183"></a><span class="lineno"> 3183</span>  <span class="keywordtype">int</span> q = stbi__get8(z->s);</div> +<div class="line"><a name="l03184"></a><span class="lineno"> 3184</span>  <span class="keywordtype">int</span> p = q >> 4, sixteen = (p != 0);</div> +<div class="line"><a name="l03185"></a><span class="lineno"> 3185</span>  <span class="keywordtype">int</span> t = q & 15, i;</div> +<div class="line"><a name="l03186"></a><span class="lineno"> 3186</span>  <span class="keywordflow">if</span> (p != 0 && p != 1)</div> +<div class="line"><a name="l03187"></a><span class="lineno"> 3187</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DQT type"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03188"></a><span class="lineno"> 3188</span>  <span class="keywordflow">if</span> (t > 3)</div> +<div class="line"><a name="l03189"></a><span class="lineno"> 3189</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DQT table"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03190"></a><span class="lineno"> 3190</span> </div> +<div class="line"><a name="l03191"></a><span class="lineno"> 3191</span>  <span class="keywordflow">for</span> (i = 0; i < 64; ++i)</div> +<div class="line"><a name="l03192"></a><span class="lineno"> 3192</span>  z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(</div> +<div class="line"><a name="l03193"></a><span class="lineno"> 3193</span>  sixteen ? stbi__get16be(z->s) : stbi__get8(z->s));</div> +<div class="line"><a name="l03194"></a><span class="lineno"> 3194</span>  L -= (sixteen ? 129 : 65);</div> +<div class="line"><a name="l03195"></a><span class="lineno"> 3195</span>  }</div> +<div class="line"><a name="l03196"></a><span class="lineno"> 3196</span>  <span class="keywordflow">return</span> L == 0;</div> +<div class="line"><a name="l03197"></a><span class="lineno"> 3197</span> </div> +<div class="line"><a name="l03198"></a><span class="lineno"> 3198</span>  <span class="keywordflow">case</span> 0xC4: <span class="comment">// DHT - define huffman table</span></div> +<div class="line"><a name="l03199"></a><span class="lineno"> 3199</span>  L = stbi__get16be(z->s) - 2;</div> +<div class="line"><a name="l03200"></a><span class="lineno"> 3200</span>  <span class="keywordflow">while</span> (L > 0) {</div> +<div class="line"><a name="l03201"></a><span class="lineno"> 3201</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *v;</div> +<div class="line"><a name="l03202"></a><span class="lineno"> 3202</span>  <span class="keywordtype">int</span> sizes[16], i, n = 0;</div> +<div class="line"><a name="l03203"></a><span class="lineno"> 3203</span>  <span class="keywordtype">int</span> q = stbi__get8(z->s);</div> +<div class="line"><a name="l03204"></a><span class="lineno"> 3204</span>  <span class="keywordtype">int</span> tc = q >> 4;</div> +<div class="line"><a name="l03205"></a><span class="lineno"> 3205</span>  <span class="keywordtype">int</span> th = q & 15;</div> +<div class="line"><a name="l03206"></a><span class="lineno"> 3206</span>  <span class="keywordflow">if</span> (tc > 1 || th > 3)</div> +<div class="line"><a name="l03207"></a><span class="lineno"> 3207</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DHT header"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03208"></a><span class="lineno"> 3208</span>  <span class="keywordflow">for</span> (i = 0; i < 16; ++i) {</div> +<div class="line"><a name="l03209"></a><span class="lineno"> 3209</span>  sizes[i] = stbi__get8(z->s);</div> +<div class="line"><a name="l03210"></a><span class="lineno"> 3210</span>  n += sizes[i];</div> +<div class="line"><a name="l03211"></a><span class="lineno"> 3211</span>  }</div> +<div class="line"><a name="l03212"></a><span class="lineno"> 3212</span>  L -= 17;</div> +<div class="line"><a name="l03213"></a><span class="lineno"> 3213</span>  <span class="keywordflow">if</span> (tc == 0) {</div> +<div class="line"><a name="l03214"></a><span class="lineno"> 3214</span>  <span class="keywordflow">if</span> (!stbi__build_huffman(z->huff_dc + th, sizes))</div> +<div class="line"><a name="l03215"></a><span class="lineno"> 3215</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03216"></a><span class="lineno"> 3216</span>  v = z->huff_dc[th].values;</div> +<div class="line"><a name="l03217"></a><span class="lineno"> 3217</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l03218"></a><span class="lineno"> 3218</span>  <span class="keywordflow">if</span> (!stbi__build_huffman(z->huff_ac + th, sizes))</div> +<div class="line"><a name="l03219"></a><span class="lineno"> 3219</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03220"></a><span class="lineno"> 3220</span>  v = z->huff_ac[th].values;</div> +<div class="line"><a name="l03221"></a><span class="lineno"> 3221</span>  }</div> +<div class="line"><a name="l03222"></a><span class="lineno"> 3222</span>  <span class="keywordflow">for</span> (i = 0; i < n; ++i)</div> +<div class="line"><a name="l03223"></a><span class="lineno"> 3223</span>  v[i] = stbi__get8(z->s);</div> +<div class="line"><a name="l03224"></a><span class="lineno"> 3224</span>  <span class="keywordflow">if</span> (tc != 0)</div> +<div class="line"><a name="l03225"></a><span class="lineno"> 3225</span>  stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th);</div> +<div class="line"><a name="l03226"></a><span class="lineno"> 3226</span>  L -= n;</div> +<div class="line"><a name="l03227"></a><span class="lineno"> 3227</span>  }</div> +<div class="line"><a name="l03228"></a><span class="lineno"> 3228</span>  <span class="keywordflow">return</span> L == 0;</div> +<div class="line"><a name="l03229"></a><span class="lineno"> 3229</span>  }</div> +<div class="line"><a name="l03230"></a><span class="lineno"> 3230</span> </div> +<div class="line"><a name="l03231"></a><span class="lineno"> 3231</span>  <span class="comment">// check for comment block or APP blocks</span></div> +<div class="line"><a name="l03232"></a><span class="lineno"> 3232</span>  <span class="keywordflow">if</span> ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) {</div> +<div class="line"><a name="l03233"></a><span class="lineno"> 3233</span>  L = stbi__get16be(z->s);</div> +<div class="line"><a name="l03234"></a><span class="lineno"> 3234</span>  <span class="keywordflow">if</span> (L < 2) {</div> +<div class="line"><a name="l03235"></a><span class="lineno"> 3235</span>  <span class="keywordflow">if</span> (m == 0xFE)</div> +<div class="line"><a name="l03236"></a><span class="lineno"> 3236</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad COM len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03237"></a><span class="lineno"> 3237</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03238"></a><span class="lineno"> 3238</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad APP len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03239"></a><span class="lineno"> 3239</span>  }</div> +<div class="line"><a name="l03240"></a><span class="lineno"> 3240</span>  L -= 2;</div> +<div class="line"><a name="l03241"></a><span class="lineno"> 3241</span> </div> +<div class="line"><a name="l03242"></a><span class="lineno"> 3242</span>  <span class="keywordflow">if</span> (m == 0xE0 && L >= 5) { <span class="comment">// JFIF APP0 segment</span></div> +<div class="line"><a name="l03243"></a><span class="lineno"> 3243</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> tag[5] = {<span class="charliteral">'J'</span>, <span class="charliteral">'F'</span>, <span class="charliteral">'I'</span>, <span class="charliteral">'F'</span>, <span class="charliteral">'\0'</span>};</div> +<div class="line"><a name="l03244"></a><span class="lineno"> 3244</span>  <span class="keywordtype">int</span> ok = 1;</div> +<div class="line"><a name="l03245"></a><span class="lineno"> 3245</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03246"></a><span class="lineno"> 3246</span>  <span class="keywordflow">for</span> (i = 0; i < 5; ++i)</div> +<div class="line"><a name="l03247"></a><span class="lineno"> 3247</span>  <span class="keywordflow">if</span> (stbi__get8(z->s) != tag[i])</div> +<div class="line"><a name="l03248"></a><span class="lineno"> 3248</span>  ok = 0;</div> +<div class="line"><a name="l03249"></a><span class="lineno"> 3249</span>  L -= 5;</div> +<div class="line"><a name="l03250"></a><span class="lineno"> 3250</span>  <span class="keywordflow">if</span> (ok)</div> +<div class="line"><a name="l03251"></a><span class="lineno"> 3251</span>  z->jfif = 1;</div> +<div class="line"><a name="l03252"></a><span class="lineno"> 3252</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (m == 0xEE && L >= 12) { <span class="comment">// Adobe APP14 segment</span></div> +<div class="line"><a name="l03253"></a><span class="lineno"> 3253</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> tag[6] = {<span class="charliteral">'A'</span>, <span class="charliteral">'d'</span>, <span class="charliteral">'o'</span>, <span class="charliteral">'b'</span>, <span class="charliteral">'e'</span>, <span class="charliteral">'\0'</span>};</div> +<div class="line"><a name="l03254"></a><span class="lineno"> 3254</span>  <span class="keywordtype">int</span> ok = 1;</div> +<div class="line"><a name="l03255"></a><span class="lineno"> 3255</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03256"></a><span class="lineno"> 3256</span>  <span class="keywordflow">for</span> (i = 0; i < 6; ++i)</div> +<div class="line"><a name="l03257"></a><span class="lineno"> 3257</span>  <span class="keywordflow">if</span> (stbi__get8(z->s) != tag[i])</div> +<div class="line"><a name="l03258"></a><span class="lineno"> 3258</span>  ok = 0;</div> +<div class="line"><a name="l03259"></a><span class="lineno"> 3259</span>  L -= 6;</div> +<div class="line"><a name="l03260"></a><span class="lineno"> 3260</span>  <span class="keywordflow">if</span> (ok) {</div> +<div class="line"><a name="l03261"></a><span class="lineno"> 3261</span>  stbi__get8(z->s); <span class="comment">// version</span></div> +<div class="line"><a name="l03262"></a><span class="lineno"> 3262</span>  stbi__get16be(z->s); <span class="comment">// flags0</span></div> +<div class="line"><a name="l03263"></a><span class="lineno"> 3263</span>  stbi__get16be(z->s); <span class="comment">// flags1</span></div> +<div class="line"><a name="l03264"></a><span class="lineno"> 3264</span>  z->app14_color_transform = stbi__get8(z->s); <span class="comment">// color transform</span></div> +<div class="line"><a name="l03265"></a><span class="lineno"> 3265</span>  L -= 6;</div> +<div class="line"><a name="l03266"></a><span class="lineno"> 3266</span>  }</div> +<div class="line"><a name="l03267"></a><span class="lineno"> 3267</span>  }</div> +<div class="line"><a name="l03268"></a><span class="lineno"> 3268</span> </div> +<div class="line"><a name="l03269"></a><span class="lineno"> 3269</span>  stbi__skip(z->s, L);</div> +<div class="line"><a name="l03270"></a><span class="lineno"> 3270</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03271"></a><span class="lineno"> 3271</span>  }</div> +<div class="line"><a name="l03272"></a><span class="lineno"> 3272</span> </div> +<div class="line"><a name="l03273"></a><span class="lineno"> 3273</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"unknown marker"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03274"></a><span class="lineno"> 3274</span> }</div> <div class="line"><a name="l03275"></a><span class="lineno"> 3275</span> </div> -<div class="line"><a name="l03276"></a><span class="lineno"> 3276</span>  <span class="comment">// undo scaling and round, then store with even/odd phases interleaved</span></div> -<div class="line"><a name="l03277"></a><span class="lineno"> 3277</span>  uint8x8x2_t o;</div> -<div class="line"><a name="l03278"></a><span class="lineno"> 3278</span>  o.val[0] = vqrshrun_n_s16(even, 4);</div> -<div class="line"><a name="l03279"></a><span class="lineno"> 3279</span>  o.val[1] = vqrshrun_n_s16(odd, 4);</div> -<div class="line"><a name="l03280"></a><span class="lineno"> 3280</span>  vst2_u8(out + i*2, o);</div> -<div class="line"><a name="l03281"></a><span class="lineno"> 3281</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03282"></a><span class="lineno"> 3282</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03283"></a><span class="lineno"> 3283</span>  <span class="comment">// "previous" value for next iter</span></div> -<div class="line"><a name="l03284"></a><span class="lineno"> 3284</span>  t1 = 3*in_near[i+7] + in_far[i+7];</div> -<div class="line"><a name="l03285"></a><span class="lineno"> 3285</span>  }</div> -<div class="line"><a name="l03286"></a><span class="lineno"> 3286</span> </div> -<div class="line"><a name="l03287"></a><span class="lineno"> 3287</span>  t0 = t1;</div> -<div class="line"><a name="l03288"></a><span class="lineno"> 3288</span>  t1 = 3*in_near[i] + in_far[i];</div> -<div class="line"><a name="l03289"></a><span class="lineno"> 3289</span>  out[i*2] = stbi__div16(3*t1 + t0 + 8);</div> -<div class="line"><a name="l03290"></a><span class="lineno"> 3290</span> </div> -<div class="line"><a name="l03291"></a><span class="lineno"> 3291</span>  <span class="keywordflow">for</span> (++i; i < w; ++i) {</div> -<div class="line"><a name="l03292"></a><span class="lineno"> 3292</span>  t0 = t1;</div> -<div class="line"><a name="l03293"></a><span class="lineno"> 3293</span>  t1 = 3*in_near[i]+in_far[i];</div> -<div class="line"><a name="l03294"></a><span class="lineno"> 3294</span>  out[i*2-1] = stbi__div16(3*t0 + t1 + 8);</div> -<div class="line"><a name="l03295"></a><span class="lineno"> 3295</span>  out[i*2 ] = stbi__div16(3*t1 + t0 + 8);</div> -<div class="line"><a name="l03296"></a><span class="lineno"> 3296</span>  }</div> -<div class="line"><a name="l03297"></a><span class="lineno"> 3297</span>  out[w*2-1] = stbi__div4(t1+2);</div> -<div class="line"><a name="l03298"></a><span class="lineno"> 3298</span> </div> -<div class="line"><a name="l03299"></a><span class="lineno"> 3299</span>  STBI_NOTUSED(hs);</div> -<div class="line"><a name="l03300"></a><span class="lineno"> 3300</span> </div> -<div class="line"><a name="l03301"></a><span class="lineno"> 3301</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03302"></a><span class="lineno"> 3302</span> }</div> -<div class="line"><a name="l03303"></a><span class="lineno"> 3303</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03304"></a><span class="lineno"> 3304</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03305"></a><span class="lineno"> 3305</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_generic(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> -<div class="line"><a name="l03306"></a><span class="lineno"> 3306</span> {</div> -<div class="line"><a name="l03307"></a><span class="lineno"> 3307</span>  <span class="comment">// resample with nearest-neighbor</span></div> -<div class="line"><a name="l03308"></a><span class="lineno"> 3308</span>  <span class="keywordtype">int</span> i,j;</div> -<div class="line"><a name="l03309"></a><span class="lineno"> 3309</span>  STBI_NOTUSED(in_far);</div> -<div class="line"><a name="l03310"></a><span class="lineno"> 3310</span>  <span class="keywordflow">for</span> (i=0; i < w; ++i)</div> -<div class="line"><a name="l03311"></a><span class="lineno"> 3311</span>  <span class="keywordflow">for</span> (j=0; j < hs; ++j)</div> -<div class="line"><a name="l03312"></a><span class="lineno"> 3312</span>  out[i*hs+j] = in_near[i];</div> -<div class="line"><a name="l03313"></a><span class="lineno"> 3313</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l03314"></a><span class="lineno"> 3314</span> }</div> -<div class="line"><a name="l03315"></a><span class="lineno"> 3315</span> </div> -<div class="line"><a name="l03316"></a><span class="lineno"> 3316</span> <span class="comment">// this is a reduced-precision calculation of YCbCr-to-RGB introduced</span></div> -<div class="line"><a name="l03317"></a><span class="lineno"> 3317</span> <span class="comment">// to make sure the code produces the same results in both SIMD and scalar</span></div> -<div class="line"><a name="l03318"></a><span class="lineno"> 3318</span> <span class="preprocessor">#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8)</span></div> -<div class="line"><a name="l03319"></a><span class="lineno"> 3319</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> stbi__YCbCr_to_RGB_row(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcb, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcr, <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> step)</div> -<div class="line"><a name="l03320"></a><span class="lineno"> 3320</span> {</div> -<div class="line"><a name="l03321"></a><span class="lineno"> 3321</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l03322"></a><span class="lineno"> 3322</span>  <span class="keywordflow">for</span> (i=0; i < count; ++i) {</div> -<div class="line"><a name="l03323"></a><span class="lineno"> 3323</span>  <span class="keywordtype">int</span> y_fixed = (y[i] << 20) + (1<<19); <span class="comment">// rounding</span></div> -<div class="line"><a name="l03324"></a><span class="lineno"> 3324</span>  <span class="keywordtype">int</span> r,g,b;</div> -<div class="line"><a name="l03325"></a><span class="lineno"> 3325</span>  <span class="keywordtype">int</span> cr = pcr[i] - 128;</div> -<div class="line"><a name="l03326"></a><span class="lineno"> 3326</span>  <span class="keywordtype">int</span> cb = pcb[i] - 128;</div> -<div class="line"><a name="l03327"></a><span class="lineno"> 3327</span>  r = y_fixed + cr* stbi__float2fixed(1.40200f);</div> -<div class="line"><a name="l03328"></a><span class="lineno"> 3328</span>  g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000);</div> -<div class="line"><a name="l03329"></a><span class="lineno"> 3329</span>  b = y_fixed + cb* stbi__float2fixed(1.77200f);</div> -<div class="line"><a name="l03330"></a><span class="lineno"> 3330</span>  r >>= 20;</div> -<div class="line"><a name="l03331"></a><span class="lineno"> 3331</span>  g >>= 20;</div> -<div class="line"><a name="l03332"></a><span class="lineno"> 3332</span>  b >>= 20;</div> -<div class="line"><a name="l03333"></a><span class="lineno"> 3333</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>) r > 255) { <span class="keywordflow">if</span> (r < 0) r = 0; <span class="keywordflow">else</span> r = 255; }</div> -<div class="line"><a name="l03334"></a><span class="lineno"> 3334</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>) g > 255) { <span class="keywordflow">if</span> (g < 0) g = 0; <span class="keywordflow">else</span> g = 255; }</div> -<div class="line"><a name="l03335"></a><span class="lineno"> 3335</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>) b > 255) { <span class="keywordflow">if</span> (b < 0) b = 0; <span class="keywordflow">else</span> b = 255; }</div> -<div class="line"><a name="l03336"></a><span class="lineno"> 3336</span>  out[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)r;</div> -<div class="line"><a name="l03337"></a><span class="lineno"> 3337</span>  out[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)g;</div> -<div class="line"><a name="l03338"></a><span class="lineno"> 3338</span>  out[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)b;</div> -<div class="line"><a name="l03339"></a><span class="lineno"> 3339</span>  out[3] = 255;</div> -<div class="line"><a name="l03340"></a><span class="lineno"> 3340</span>  out += step;</div> -<div class="line"><a name="l03341"></a><span class="lineno"> 3341</span>  }</div> -<div class="line"><a name="l03342"></a><span class="lineno"> 3342</span> }</div> -<div class="line"><a name="l03343"></a><span class="lineno"> 3343</span> </div> -<div class="line"><a name="l03344"></a><span class="lineno"> 3344</span> <span class="preprocessor">#if defined(STBI_SSE2) || defined(STBI_NEON)</span></div> -<div class="line"><a name="l03345"></a><span class="lineno"> 3345</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> stbi__YCbCr_to_RGB_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *y, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *pcb, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *pcr, <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> step)</div> -<div class="line"><a name="l03346"></a><span class="lineno"> 3346</span> {</div> -<div class="line"><a name="l03347"></a><span class="lineno"> 3347</span>  <span class="keywordtype">int</span> i = 0;</div> +<div class="line"><a name="l03276"></a><span class="lineno"> 3276</span> <span class="comment">// after we see SOS</span></div> +<div class="line"><a name="l03277"></a><span class="lineno"> 3277</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__process_scan_header(stbi__jpeg *z)</div> +<div class="line"><a name="l03278"></a><span class="lineno"> 3278</span> {</div> +<div class="line"><a name="l03279"></a><span class="lineno"> 3279</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03280"></a><span class="lineno"> 3280</span>  <span class="keywordtype">int</span> Ls = stbi__get16be(z->s);</div> +<div class="line"><a name="l03281"></a><span class="lineno"> 3281</span>  z->scan_n = stbi__get8(z->s);</div> +<div class="line"><a name="l03282"></a><span class="lineno"> 3282</span>  <span class="keywordflow">if</span> (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (<span class="keywordtype">int</span>)z->s->img_n)</div> +<div class="line"><a name="l03283"></a><span class="lineno"> 3283</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS component count"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03284"></a><span class="lineno"> 3284</span>  <span class="keywordflow">if</span> (Ls != 6 + 2 * z->scan_n)</div> +<div class="line"><a name="l03285"></a><span class="lineno"> 3285</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03286"></a><span class="lineno"> 3286</span>  <span class="keywordflow">for</span> (i = 0; i < z->scan_n; ++i) {</div> +<div class="line"><a name="l03287"></a><span class="lineno"> 3287</span>  <span class="keywordtype">int</span> <span class="keywordtype">id</span> = stbi__get8(z->s), which;</div> +<div class="line"><a name="l03288"></a><span class="lineno"> 3288</span>  <span class="keywordtype">int</span> q = stbi__get8(z->s);</div> +<div class="line"><a name="l03289"></a><span class="lineno"> 3289</span>  <span class="keywordflow">for</span> (which = 0; which < z->s->img_n; ++which)</div> +<div class="line"><a name="l03290"></a><span class="lineno"> 3290</span>  <span class="keywordflow">if</span> (z->img_comp[which].id == <span class="keywordtype">id</span>)</div> +<div class="line"><a name="l03291"></a><span class="lineno"> 3291</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l03292"></a><span class="lineno"> 3292</span>  <span class="keywordflow">if</span> (which == z->s->img_n)</div> +<div class="line"><a name="l03293"></a><span class="lineno"> 3293</span>  <span class="keywordflow">return</span> 0; <span class="comment">// no match</span></div> +<div class="line"><a name="l03294"></a><span class="lineno"> 3294</span>  z->img_comp[which].hd = q >> 4;</div> +<div class="line"><a name="l03295"></a><span class="lineno"> 3295</span>  <span class="keywordflow">if</span> (z->img_comp[which].hd > 3)</div> +<div class="line"><a name="l03296"></a><span class="lineno"> 3296</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad DC huff"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03297"></a><span class="lineno"> 3297</span>  z->img_comp[which].ha = q & 15;</div> +<div class="line"><a name="l03298"></a><span class="lineno"> 3298</span>  <span class="keywordflow">if</span> (z->img_comp[which].ha > 3)</div> +<div class="line"><a name="l03299"></a><span class="lineno"> 3299</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad AC huff"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03300"></a><span class="lineno"> 3300</span>  z->order[i] = which;</div> +<div class="line"><a name="l03301"></a><span class="lineno"> 3301</span>  }</div> +<div class="line"><a name="l03302"></a><span class="lineno"> 3302</span> </div> +<div class="line"><a name="l03303"></a><span class="lineno"> 3303</span>  {</div> +<div class="line"><a name="l03304"></a><span class="lineno"> 3304</span>  <span class="keywordtype">int</span> aa;</div> +<div class="line"><a name="l03305"></a><span class="lineno"> 3305</span>  z->spec_start = stbi__get8(z->s);</div> +<div class="line"><a name="l03306"></a><span class="lineno"> 3306</span>  z->spec_end = stbi__get8(z->s); <span class="comment">// should be 63, but might be 0</span></div> +<div class="line"><a name="l03307"></a><span class="lineno"> 3307</span>  aa = stbi__get8(z->s);</div> +<div class="line"><a name="l03308"></a><span class="lineno"> 3308</span>  z->succ_high = (aa >> 4);</div> +<div class="line"><a name="l03309"></a><span class="lineno"> 3309</span>  z->succ_low = (aa & 15);</div> +<div class="line"><a name="l03310"></a><span class="lineno"> 3310</span>  <span class="keywordflow">if</span> (z->progressive) {</div> +<div class="line"><a name="l03311"></a><span class="lineno"> 3311</span>  <span class="keywordflow">if</span> (z->spec_start > 63 || z->spec_end > 63 ||</div> +<div class="line"><a name="l03312"></a><span class="lineno"> 3312</span>  z->spec_start > z->spec_end || z->succ_high > 13 ||</div> +<div class="line"><a name="l03313"></a><span class="lineno"> 3313</span>  z->succ_low > 13)</div> +<div class="line"><a name="l03314"></a><span class="lineno"> 3314</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03315"></a><span class="lineno"> 3315</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l03316"></a><span class="lineno"> 3316</span>  <span class="keywordflow">if</span> (z->spec_start != 0)</div> +<div class="line"><a name="l03317"></a><span class="lineno"> 3317</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03318"></a><span class="lineno"> 3318</span>  <span class="keywordflow">if</span> (z->succ_high != 0 || z->succ_low != 0)</div> +<div class="line"><a name="l03319"></a><span class="lineno"> 3319</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOS"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03320"></a><span class="lineno"> 3320</span>  z->spec_end = 63;</div> +<div class="line"><a name="l03321"></a><span class="lineno"> 3321</span>  }</div> +<div class="line"><a name="l03322"></a><span class="lineno"> 3322</span>  }</div> +<div class="line"><a name="l03323"></a><span class="lineno"> 3323</span> </div> +<div class="line"><a name="l03324"></a><span class="lineno"> 3324</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03325"></a><span class="lineno"> 3325</span> }</div> +<div class="line"><a name="l03326"></a><span class="lineno"> 3326</span> </div> +<div class="line"><a name="l03327"></a><span class="lineno"> 3327</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__free_jpeg_components(stbi__jpeg *z, <span class="keywordtype">int</span> ncomp, <span class="keywordtype">int</span> why)</div> +<div class="line"><a name="l03328"></a><span class="lineno"> 3328</span> {</div> +<div class="line"><a name="l03329"></a><span class="lineno"> 3329</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03330"></a><span class="lineno"> 3330</span>  <span class="keywordflow">for</span> (i = 0; i < ncomp; ++i) {</div> +<div class="line"><a name="l03331"></a><span class="lineno"> 3331</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_data) {</div> +<div class="line"><a name="l03332"></a><span class="lineno"> 3332</span>  STBI_FREE(z->img_comp[i].raw_data);</div> +<div class="line"><a name="l03333"></a><span class="lineno"> 3333</span>  z->img_comp[i].raw_data = NULL;</div> +<div class="line"><a name="l03334"></a><span class="lineno"> 3334</span>  z->img_comp[i].data = NULL;</div> +<div class="line"><a name="l03335"></a><span class="lineno"> 3335</span>  }</div> +<div class="line"><a name="l03336"></a><span class="lineno"> 3336</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_coeff) {</div> +<div class="line"><a name="l03337"></a><span class="lineno"> 3337</span>  STBI_FREE(z->img_comp[i].raw_coeff);</div> +<div class="line"><a name="l03338"></a><span class="lineno"> 3338</span>  z->img_comp[i].raw_coeff = 0;</div> +<div class="line"><a name="l03339"></a><span class="lineno"> 3339</span>  z->img_comp[i].coeff = 0;</div> +<div class="line"><a name="l03340"></a><span class="lineno"> 3340</span>  }</div> +<div class="line"><a name="l03341"></a><span class="lineno"> 3341</span>  <span class="keywordflow">if</span> (z->img_comp[i].linebuf) {</div> +<div class="line"><a name="l03342"></a><span class="lineno"> 3342</span>  STBI_FREE(z->img_comp[i].linebuf);</div> +<div class="line"><a name="l03343"></a><span class="lineno"> 3343</span>  z->img_comp[i].linebuf = NULL;</div> +<div class="line"><a name="l03344"></a><span class="lineno"> 3344</span>  }</div> +<div class="line"><a name="l03345"></a><span class="lineno"> 3345</span>  }</div> +<div class="line"><a name="l03346"></a><span class="lineno"> 3346</span>  <span class="keywordflow">return</span> why;</div> +<div class="line"><a name="l03347"></a><span class="lineno"> 3347</span> }</div> <div class="line"><a name="l03348"></a><span class="lineno"> 3348</span> </div> -<div class="line"><a name="l03349"></a><span class="lineno"> 3349</span> <span class="preprocessor">#ifdef STBI_SSE2</span></div> -<div class="line"><a name="l03350"></a><span class="lineno"> 3350</span> <span class="preprocessor"></span> <span class="comment">// step == 3 is pretty ugly on the final interleave, and i'm not convinced</span></div> -<div class="line"><a name="l03351"></a><span class="lineno"> 3351</span>  <span class="comment">// it's useful in practice (you wouldn't use it for textures, for example).</span></div> -<div class="line"><a name="l03352"></a><span class="lineno"> 3352</span>  <span class="comment">// so just accelerate step == 4 case.</span></div> -<div class="line"><a name="l03353"></a><span class="lineno"> 3353</span>  <span class="keywordflow">if</span> (step == 4) {</div> -<div class="line"><a name="l03354"></a><span class="lineno"> 3354</span>  <span class="comment">// this is a fairly straightforward implementation and not super-optimized.</span></div> -<div class="line"><a name="l03355"></a><span class="lineno"> 3355</span>  __m128i signflip = _mm_set1_epi8(-0x80);</div> -<div class="line"><a name="l03356"></a><span class="lineno"> 3356</span>  __m128i cr_const0 = _mm_set1_epi16( (<span class="keywordtype">short</span>) ( 1.40200f*4096.0f+0.5f));</div> -<div class="line"><a name="l03357"></a><span class="lineno"> 3357</span>  __m128i cr_const1 = _mm_set1_epi16( - (<span class="keywordtype">short</span>) ( 0.71414f*4096.0f+0.5f));</div> -<div class="line"><a name="l03358"></a><span class="lineno"> 3358</span>  __m128i cb_const0 = _mm_set1_epi16( - (<span class="keywordtype">short</span>) ( 0.34414f*4096.0f+0.5f));</div> -<div class="line"><a name="l03359"></a><span class="lineno"> 3359</span>  __m128i cb_const1 = _mm_set1_epi16( (<span class="keywordtype">short</span>) ( 1.77200f*4096.0f+0.5f));</div> -<div class="line"><a name="l03360"></a><span class="lineno"> 3360</span>  __m128i y_bias = _mm_set1_epi8((<span class="keywordtype">char</span>) (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>) 128);</div> -<div class="line"><a name="l03361"></a><span class="lineno"> 3361</span>  __m128i xw = _mm_set1_epi16(255); <span class="comment">// alpha channel</span></div> -<div class="line"><a name="l03362"></a><span class="lineno"> 3362</span> </div> -<div class="line"><a name="l03363"></a><span class="lineno"> 3363</span>  <span class="keywordflow">for</span> (; i+7 < count; i += 8) {</div> -<div class="line"><a name="l03364"></a><span class="lineno"> 3364</span>  <span class="comment">// load</span></div> -<div class="line"><a name="l03365"></a><span class="lineno"> 3365</span>  __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i));</div> -<div class="line"><a name="l03366"></a><span class="lineno"> 3366</span>  __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i));</div> -<div class="line"><a name="l03367"></a><span class="lineno"> 3367</span>  __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i));</div> -<div class="line"><a name="l03368"></a><span class="lineno"> 3368</span>  __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); <span class="comment">// -128</span></div> -<div class="line"><a name="l03369"></a><span class="lineno"> 3369</span>  __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); <span class="comment">// -128</span></div> -<div class="line"><a name="l03370"></a><span class="lineno"> 3370</span> </div> -<div class="line"><a name="l03371"></a><span class="lineno"> 3371</span>  <span class="comment">// unpack to short (and left-shift cr, cb by 8)</span></div> -<div class="line"><a name="l03372"></a><span class="lineno"> 3372</span>  __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes);</div> -<div class="line"><a name="l03373"></a><span class="lineno"> 3373</span>  __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased);</div> -<div class="line"><a name="l03374"></a><span class="lineno"> 3374</span>  __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased);</div> -<div class="line"><a name="l03375"></a><span class="lineno"> 3375</span> </div> -<div class="line"><a name="l03376"></a><span class="lineno"> 3376</span>  <span class="comment">// color transform</span></div> -<div class="line"><a name="l03377"></a><span class="lineno"> 3377</span>  __m128i yws = _mm_srli_epi16(yw, 4);</div> -<div class="line"><a name="l03378"></a><span class="lineno"> 3378</span>  __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw);</div> -<div class="line"><a name="l03379"></a><span class="lineno"> 3379</span>  __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw);</div> -<div class="line"><a name="l03380"></a><span class="lineno"> 3380</span>  __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1);</div> -<div class="line"><a name="l03381"></a><span class="lineno"> 3381</span>  __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1);</div> -<div class="line"><a name="l03382"></a><span class="lineno"> 3382</span>  __m128i rws = _mm_add_epi16(cr0, yws);</div> -<div class="line"><a name="l03383"></a><span class="lineno"> 3383</span>  __m128i gwt = _mm_add_epi16(cb0, yws);</div> -<div class="line"><a name="l03384"></a><span class="lineno"> 3384</span>  __m128i bws = _mm_add_epi16(yws, cb1);</div> -<div class="line"><a name="l03385"></a><span class="lineno"> 3385</span>  __m128i gws = _mm_add_epi16(gwt, cr1);</div> -<div class="line"><a name="l03386"></a><span class="lineno"> 3386</span> </div> -<div class="line"><a name="l03387"></a><span class="lineno"> 3387</span>  <span class="comment">// descale</span></div> -<div class="line"><a name="l03388"></a><span class="lineno"> 3388</span>  __m128i rw = _mm_srai_epi16(rws, 4);</div> -<div class="line"><a name="l03389"></a><span class="lineno"> 3389</span>  __m128i bw = _mm_srai_epi16(bws, 4);</div> -<div class="line"><a name="l03390"></a><span class="lineno"> 3390</span>  __m128i gw = _mm_srai_epi16(gws, 4);</div> -<div class="line"><a name="l03391"></a><span class="lineno"> 3391</span> </div> -<div class="line"><a name="l03392"></a><span class="lineno"> 3392</span>  <span class="comment">// back to byte, set up for transpose</span></div> -<div class="line"><a name="l03393"></a><span class="lineno"> 3393</span>  __m128i brb = _mm_packus_epi16(rw, bw);</div> -<div class="line"><a name="l03394"></a><span class="lineno"> 3394</span>  __m128i gxb = _mm_packus_epi16(gw, xw);</div> -<div class="line"><a name="l03395"></a><span class="lineno"> 3395</span> </div> -<div class="line"><a name="l03396"></a><span class="lineno"> 3396</span>  <span class="comment">// transpose to interleave channels</span></div> -<div class="line"><a name="l03397"></a><span class="lineno"> 3397</span>  __m128i t0 = _mm_unpacklo_epi8(brb, gxb);</div> -<div class="line"><a name="l03398"></a><span class="lineno"> 3398</span>  __m128i t1 = _mm_unpackhi_epi8(brb, gxb);</div> -<div class="line"><a name="l03399"></a><span class="lineno"> 3399</span>  __m128i o0 = _mm_unpacklo_epi16(t0, t1);</div> -<div class="line"><a name="l03400"></a><span class="lineno"> 3400</span>  __m128i o1 = _mm_unpackhi_epi16(t0, t1);</div> -<div class="line"><a name="l03401"></a><span class="lineno"> 3401</span> </div> -<div class="line"><a name="l03402"></a><span class="lineno"> 3402</span>  <span class="comment">// store</span></div> -<div class="line"><a name="l03403"></a><span class="lineno"> 3403</span>  _mm_storeu_si128((__m128i *) (out + 0), o0);</div> -<div class="line"><a name="l03404"></a><span class="lineno"> 3404</span>  _mm_storeu_si128((__m128i *) (out + 16), o1);</div> -<div class="line"><a name="l03405"></a><span class="lineno"> 3405</span>  out += 32;</div> -<div class="line"><a name="l03406"></a><span class="lineno"> 3406</span>  }</div> -<div class="line"><a name="l03407"></a><span class="lineno"> 3407</span>  }</div> -<div class="line"><a name="l03408"></a><span class="lineno"> 3408</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03409"></a><span class="lineno"> 3409</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03410"></a><span class="lineno"> 3410</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> -<div class="line"><a name="l03411"></a><span class="lineno"> 3411</span> <span class="preprocessor"></span> <span class="comment">// in this version, step=3 support would be easy to add. but is there demand?</span></div> -<div class="line"><a name="l03412"></a><span class="lineno"> 3412</span>  <span class="keywordflow">if</span> (step == 4) {</div> -<div class="line"><a name="l03413"></a><span class="lineno"> 3413</span>  <span class="comment">// this is a fairly straightforward implementation and not super-optimized.</span></div> -<div class="line"><a name="l03414"></a><span class="lineno"> 3414</span>  uint8x8_t signflip = vdup_n_u8(0x80);</div> -<div class="line"><a name="l03415"></a><span class="lineno"> 3415</span>  int16x8_t cr_const0 = vdupq_n_s16( (<span class="keywordtype">short</span>) ( 1.40200f*4096.0f+0.5f));</div> -<div class="line"><a name="l03416"></a><span class="lineno"> 3416</span>  int16x8_t cr_const1 = vdupq_n_s16( - (<span class="keywordtype">short</span>) ( 0.71414f*4096.0f+0.5f));</div> -<div class="line"><a name="l03417"></a><span class="lineno"> 3417</span>  int16x8_t cb_const0 = vdupq_n_s16( - (<span class="keywordtype">short</span>) ( 0.34414f*4096.0f+0.5f));</div> -<div class="line"><a name="l03418"></a><span class="lineno"> 3418</span>  int16x8_t cb_const1 = vdupq_n_s16( (<span class="keywordtype">short</span>) ( 1.77200f*4096.0f+0.5f));</div> -<div class="line"><a name="l03419"></a><span class="lineno"> 3419</span> </div> -<div class="line"><a name="l03420"></a><span class="lineno"> 3420</span>  <span class="keywordflow">for</span> (; i+7 < count; i += 8) {</div> -<div class="line"><a name="l03421"></a><span class="lineno"> 3421</span>  <span class="comment">// load</span></div> -<div class="line"><a name="l03422"></a><span class="lineno"> 3422</span>  uint8x8_t y_bytes = vld1_u8(y + i);</div> -<div class="line"><a name="l03423"></a><span class="lineno"> 3423</span>  uint8x8_t cr_bytes = vld1_u8(pcr + i);</div> -<div class="line"><a name="l03424"></a><span class="lineno"> 3424</span>  uint8x8_t cb_bytes = vld1_u8(pcb + i);</div> -<div class="line"><a name="l03425"></a><span class="lineno"> 3425</span>  int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip));</div> -<div class="line"><a name="l03426"></a><span class="lineno"> 3426</span>  int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip));</div> -<div class="line"><a name="l03427"></a><span class="lineno"> 3427</span> </div> -<div class="line"><a name="l03428"></a><span class="lineno"> 3428</span>  <span class="comment">// expand to s16</span></div> -<div class="line"><a name="l03429"></a><span class="lineno"> 3429</span>  int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4));</div> -<div class="line"><a name="l03430"></a><span class="lineno"> 3430</span>  int16x8_t crw = vshll_n_s8(cr_biased, 7);</div> -<div class="line"><a name="l03431"></a><span class="lineno"> 3431</span>  int16x8_t cbw = vshll_n_s8(cb_biased, 7);</div> -<div class="line"><a name="l03432"></a><span class="lineno"> 3432</span> </div> -<div class="line"><a name="l03433"></a><span class="lineno"> 3433</span>  <span class="comment">// color transform</span></div> -<div class="line"><a name="l03434"></a><span class="lineno"> 3434</span>  int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0);</div> -<div class="line"><a name="l03435"></a><span class="lineno"> 3435</span>  int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0);</div> -<div class="line"><a name="l03436"></a><span class="lineno"> 3436</span>  int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1);</div> -<div class="line"><a name="l03437"></a><span class="lineno"> 3437</span>  int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1);</div> -<div class="line"><a name="l03438"></a><span class="lineno"> 3438</span>  int16x8_t rws = vaddq_s16(yws, cr0);</div> -<div class="line"><a name="l03439"></a><span class="lineno"> 3439</span>  int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1);</div> -<div class="line"><a name="l03440"></a><span class="lineno"> 3440</span>  int16x8_t bws = vaddq_s16(yws, cb1);</div> -<div class="line"><a name="l03441"></a><span class="lineno"> 3441</span> </div> -<div class="line"><a name="l03442"></a><span class="lineno"> 3442</span>  <span class="comment">// undo scaling, round, convert to byte</span></div> -<div class="line"><a name="l03443"></a><span class="lineno"> 3443</span>  uint8x8x4_t o;</div> -<div class="line"><a name="l03444"></a><span class="lineno"> 3444</span>  o.val[0] = vqrshrun_n_s16(rws, 4);</div> -<div class="line"><a name="l03445"></a><span class="lineno"> 3445</span>  o.val[1] = vqrshrun_n_s16(gws, 4);</div> -<div class="line"><a name="l03446"></a><span class="lineno"> 3446</span>  o.val[2] = vqrshrun_n_s16(bws, 4);</div> -<div class="line"><a name="l03447"></a><span class="lineno"> 3447</span>  o.val[3] = vdup_n_u8(255);</div> -<div class="line"><a name="l03448"></a><span class="lineno"> 3448</span> </div> -<div class="line"><a name="l03449"></a><span class="lineno"> 3449</span>  <span class="comment">// store, interleaving r/g/b/a</span></div> -<div class="line"><a name="l03450"></a><span class="lineno"> 3450</span>  vst4_u8(out, o);</div> -<div class="line"><a name="l03451"></a><span class="lineno"> 3451</span>  out += 8*4;</div> -<div class="line"><a name="l03452"></a><span class="lineno"> 3452</span>  }</div> -<div class="line"><a name="l03453"></a><span class="lineno"> 3453</span>  }</div> -<div class="line"><a name="l03454"></a><span class="lineno"> 3454</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03455"></a><span class="lineno"> 3455</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03456"></a><span class="lineno"> 3456</span>  <span class="keywordflow">for</span> (; i < count; ++i) {</div> -<div class="line"><a name="l03457"></a><span class="lineno"> 3457</span>  <span class="keywordtype">int</span> y_fixed = (y[i] << 20) + (1<<19); <span class="comment">// rounding</span></div> -<div class="line"><a name="l03458"></a><span class="lineno"> 3458</span>  <span class="keywordtype">int</span> r,g,b;</div> -<div class="line"><a name="l03459"></a><span class="lineno"> 3459</span>  <span class="keywordtype">int</span> cr = pcr[i] - 128;</div> -<div class="line"><a name="l03460"></a><span class="lineno"> 3460</span>  <span class="keywordtype">int</span> cb = pcb[i] - 128;</div> -<div class="line"><a name="l03461"></a><span class="lineno"> 3461</span>  r = y_fixed + cr* stbi__float2fixed(1.40200f);</div> -<div class="line"><a name="l03462"></a><span class="lineno"> 3462</span>  g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000);</div> -<div class="line"><a name="l03463"></a><span class="lineno"> 3463</span>  b = y_fixed + cb* stbi__float2fixed(1.77200f);</div> -<div class="line"><a name="l03464"></a><span class="lineno"> 3464</span>  r >>= 20;</div> -<div class="line"><a name="l03465"></a><span class="lineno"> 3465</span>  g >>= 20;</div> -<div class="line"><a name="l03466"></a><span class="lineno"> 3466</span>  b >>= 20;</div> -<div class="line"><a name="l03467"></a><span class="lineno"> 3467</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>) r > 255) { <span class="keywordflow">if</span> (r < 0) r = 0; <span class="keywordflow">else</span> r = 255; }</div> -<div class="line"><a name="l03468"></a><span class="lineno"> 3468</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>) g > 255) { <span class="keywordflow">if</span> (g < 0) g = 0; <span class="keywordflow">else</span> g = 255; }</div> -<div class="line"><a name="l03469"></a><span class="lineno"> 3469</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>) b > 255) { <span class="keywordflow">if</span> (b < 0) b = 0; <span class="keywordflow">else</span> b = 255; }</div> -<div class="line"><a name="l03470"></a><span class="lineno"> 3470</span>  out[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)r;</div> -<div class="line"><a name="l03471"></a><span class="lineno"> 3471</span>  out[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)g;</div> -<div class="line"><a name="l03472"></a><span class="lineno"> 3472</span>  out[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)b;</div> -<div class="line"><a name="l03473"></a><span class="lineno"> 3473</span>  out[3] = 255;</div> -<div class="line"><a name="l03474"></a><span class="lineno"> 3474</span>  out += step;</div> -<div class="line"><a name="l03475"></a><span class="lineno"> 3475</span>  }</div> -<div class="line"><a name="l03476"></a><span class="lineno"> 3476</span> }</div> -<div class="line"><a name="l03477"></a><span class="lineno"> 3477</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03478"></a><span class="lineno"> 3478</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03479"></a><span class="lineno"> 3479</span> <span class="comment">// set up the kernels</span></div> -<div class="line"><a name="l03480"></a><span class="lineno"> 3480</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__setup_jpeg(stbi__jpeg *j)</div> -<div class="line"><a name="l03481"></a><span class="lineno"> 3481</span> {</div> -<div class="line"><a name="l03482"></a><span class="lineno"> 3482</span>  j->idct_block_kernel = stbi__idct_block;</div> -<div class="line"><a name="l03483"></a><span class="lineno"> 3483</span>  j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row;</div> -<div class="line"><a name="l03484"></a><span class="lineno"> 3484</span>  j->resample_row_hv_2_kernel = stbi__resample_row_hv_2;</div> -<div class="line"><a name="l03485"></a><span class="lineno"> 3485</span> </div> -<div class="line"><a name="l03486"></a><span class="lineno"> 3486</span> <span class="preprocessor">#ifdef STBI_SSE2</span></div> -<div class="line"><a name="l03487"></a><span class="lineno"> 3487</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__sse2_available()) {</div> -<div class="line"><a name="l03488"></a><span class="lineno"> 3488</span>  j->idct_block_kernel = stbi__idct_simd;</div> -<div class="line"><a name="l03489"></a><span class="lineno"> 3489</span>  j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;</div> -<div class="line"><a name="l03490"></a><span class="lineno"> 3490</span>  j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;</div> -<div class="line"><a name="l03491"></a><span class="lineno"> 3491</span>  }</div> -<div class="line"><a name="l03492"></a><span class="lineno"> 3492</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03493"></a><span class="lineno"> 3493</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03494"></a><span class="lineno"> 3494</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> -<div class="line"><a name="l03495"></a><span class="lineno"> 3495</span> <span class="preprocessor"></span> j->idct_block_kernel = stbi__idct_simd;</div> -<div class="line"><a name="l03496"></a><span class="lineno"> 3496</span>  j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;</div> -<div class="line"><a name="l03497"></a><span class="lineno"> 3497</span>  j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;</div> -<div class="line"><a name="l03498"></a><span class="lineno"> 3498</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03499"></a><span class="lineno"> 3499</span> <span class="preprocessor"></span>}</div> -<div class="line"><a name="l03500"></a><span class="lineno"> 3500</span> </div> -<div class="line"><a name="l03501"></a><span class="lineno"> 3501</span> <span class="comment">// clean up the temporary component buffers</span></div> -<div class="line"><a name="l03502"></a><span class="lineno"> 3502</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__cleanup_jpeg(stbi__jpeg *j)</div> -<div class="line"><a name="l03503"></a><span class="lineno"> 3503</span> {</div> -<div class="line"><a name="l03504"></a><span class="lineno"> 3504</span>  stbi__free_jpeg_components(j, j->s->img_n, 0);</div> -<div class="line"><a name="l03505"></a><span class="lineno"> 3505</span> }</div> -<div class="line"><a name="l03506"></a><span class="lineno"> 3506</span> </div> -<div class="line"><a name="l03507"></a><span class="lineno"> 3507</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l03508"></a><span class="lineno"> 3508</span> {</div> -<div class="line"><a name="l03509"></a><span class="lineno"> 3509</span>  resample_row_func resample;</div> -<div class="line"><a name="l03510"></a><span class="lineno"> 3510</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *line0,*line1;</div> -<div class="line"><a name="l03511"></a><span class="lineno"> 3511</span>  <span class="keywordtype">int</span> hs,vs; <span class="comment">// expansion factor in each axis</span></div> -<div class="line"><a name="l03512"></a><span class="lineno"> 3512</span>  <span class="keywordtype">int</span> w_lores; <span class="comment">// horizontal pixels pre-expansion</span></div> -<div class="line"><a name="l03513"></a><span class="lineno"> 3513</span>  <span class="keywordtype">int</span> ystep; <span class="comment">// how far through vertical expansion we are</span></div> -<div class="line"><a name="l03514"></a><span class="lineno"> 3514</span>  <span class="keywordtype">int</span> ypos; <span class="comment">// which pre-expansion row we're on</span></div> -<div class="line"><a name="l03515"></a><span class="lineno"> 3515</span> } stbi__resample;</div> -<div class="line"><a name="l03516"></a><span class="lineno"> 3516</span> </div> -<div class="line"><a name="l03517"></a><span class="lineno"> 3517</span> <span class="comment">// fast 0..255 * 0..255 => 0..255 rounded multiplication</span></div> -<div class="line"><a name="l03518"></a><span class="lineno"> 3518</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__blinn_8x8(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> x, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> y)</div> -<div class="line"><a name="l03519"></a><span class="lineno"> 3519</span> {</div> -<div class="line"><a name="l03520"></a><span class="lineno"> 3520</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> t = x*y + 128;</div> -<div class="line"><a name="l03521"></a><span class="lineno"> 3521</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) ((t + (t >>8)) >> 8);</div> -<div class="line"><a name="l03522"></a><span class="lineno"> 3522</span> }</div> -<div class="line"><a name="l03523"></a><span class="lineno"> 3523</span> </div> -<div class="line"><a name="l03524"></a><span class="lineno"> 3524</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *load_jpeg_image(stbi__jpeg *z, <span class="keywordtype">int</span> *out_x, <span class="keywordtype">int</span> *out_y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l03525"></a><span class="lineno"> 3525</span> {</div> -<div class="line"><a name="l03526"></a><span class="lineno"> 3526</span>  <span class="keywordtype">int</span> n, decode_n, is_rgb;</div> -<div class="line"><a name="l03527"></a><span class="lineno"> 3527</span>  z->s->img_n = 0; <span class="comment">// make stbi__cleanup_jpeg safe</span></div> -<div class="line"><a name="l03528"></a><span class="lineno"> 3528</span> </div> -<div class="line"><a name="l03529"></a><span class="lineno"> 3529</span>  <span class="comment">// validate req_comp</span></div> -<div class="line"><a name="l03530"></a><span class="lineno"> 3530</span>  <span class="keywordflow">if</span> (req_comp < 0 || req_comp > 4) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad req_comp"</span>, <span class="stringliteral">"Internal error"</span>);</div> -<div class="line"><a name="l03531"></a><span class="lineno"> 3531</span> </div> -<div class="line"><a name="l03532"></a><span class="lineno"> 3532</span>  <span class="comment">// load a jpeg image from whichever source, but leave in YCbCr format</span></div> -<div class="line"><a name="l03533"></a><span class="lineno"> 3533</span>  <span class="keywordflow">if</span> (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); <span class="keywordflow">return</span> NULL; }</div> -<div class="line"><a name="l03534"></a><span class="lineno"> 3534</span> </div> -<div class="line"><a name="l03535"></a><span class="lineno"> 3535</span>  <span class="comment">// determine actual number of components to generate</span></div> -<div class="line"><a name="l03536"></a><span class="lineno"> 3536</span>  n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1;</div> -<div class="line"><a name="l03537"></a><span class="lineno"> 3537</span> </div> -<div class="line"><a name="l03538"></a><span class="lineno"> 3538</span>  is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif));</div> -<div class="line"><a name="l03539"></a><span class="lineno"> 3539</span> </div> -<div class="line"><a name="l03540"></a><span class="lineno"> 3540</span>  <span class="keywordflow">if</span> (z->s->img_n == 3 && n < 3 && !is_rgb)</div> -<div class="line"><a name="l03541"></a><span class="lineno"> 3541</span>  decode_n = 1;</div> -<div class="line"><a name="l03542"></a><span class="lineno"> 3542</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l03543"></a><span class="lineno"> 3543</span>  decode_n = z->s->img_n;</div> -<div class="line"><a name="l03544"></a><span class="lineno"> 3544</span> </div> -<div class="line"><a name="l03545"></a><span class="lineno"> 3545</span>  <span class="comment">// resample and color-convert</span></div> -<div class="line"><a name="l03546"></a><span class="lineno"> 3546</span>  {</div> -<div class="line"><a name="l03547"></a><span class="lineno"> 3547</span>  <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l03548"></a><span class="lineno"> 3548</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i,j;</div> -<div class="line"><a name="l03549"></a><span class="lineno"> 3549</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *output;</div> -<div class="line"><a name="l03550"></a><span class="lineno"> 3550</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *coutput[4];</div> +<div class="line"><a name="l03349"></a><span class="lineno"> 3349</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__process_frame_header(stbi__jpeg *z, <span class="keywordtype">int</span> scan)</div> +<div class="line"><a name="l03350"></a><span class="lineno"> 3350</span> {</div> +<div class="line"><a name="l03351"></a><span class="lineno"> 3351</span>  stbi__context *s = z->s;</div> +<div class="line"><a name="l03352"></a><span class="lineno"> 3352</span>  <span class="keywordtype">int</span> Lf, p, i, q, h_max = 1, v_max = 1, c;</div> +<div class="line"><a name="l03353"></a><span class="lineno"> 3353</span>  Lf = stbi__get16be(s);</div> +<div class="line"><a name="l03354"></a><span class="lineno"> 3354</span>  <span class="keywordflow">if</span> (Lf < 11)</div> +<div class="line"><a name="l03355"></a><span class="lineno"> 3355</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOF len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>); <span class="comment">// JPEG</span></div> +<div class="line"><a name="l03356"></a><span class="lineno"> 3356</span>  p = stbi__get8(s);</div> +<div class="line"><a name="l03357"></a><span class="lineno"> 3357</span>  <span class="keywordflow">if</span> (p != 8)</div> +<div class="line"><a name="l03358"></a><span class="lineno"> 3358</span>  <span class="keywordflow">return</span> stbi__err(</div> +<div class="line"><a name="l03359"></a><span class="lineno"> 3359</span>  <span class="stringliteral">"only 8-bit"</span>,</div> +<div class="line"><a name="l03360"></a><span class="lineno"> 3360</span>  <span class="stringliteral">"JPEG format not supported: 8-bit only"</span>); <span class="comment">// JPEG baseline</span></div> +<div class="line"><a name="l03361"></a><span class="lineno"> 3361</span>  s->img_y = stbi__get16be(s);</div> +<div class="line"><a name="l03362"></a><span class="lineno"> 3362</span>  <span class="keywordflow">if</span> (s->img_y == 0)</div> +<div class="line"><a name="l03363"></a><span class="lineno"> 3363</span>  <span class="keywordflow">return</span> stbi__err(</div> +<div class="line"><a name="l03364"></a><span class="lineno"> 3364</span>  <span class="stringliteral">"no header height"</span>,</div> +<div class="line"><a name="l03365"></a><span class="lineno"> 3365</span>  <span class="stringliteral">"JPEG format not supported: delayed height"</span>); <span class="comment">// Legal, but we don't</span></div> +<div class="line"><a name="l03366"></a><span class="lineno"> 3366</span>  <span class="comment">// handle it--but</span></div> +<div class="line"><a name="l03367"></a><span class="lineno"> 3367</span>  <span class="comment">// neither does IJG</span></div> +<div class="line"><a name="l03368"></a><span class="lineno"> 3368</span>  s->img_x = stbi__get16be(s);</div> +<div class="line"><a name="l03369"></a><span class="lineno"> 3369</span>  <span class="keywordflow">if</span> (s->img_x == 0)</div> +<div class="line"><a name="l03370"></a><span class="lineno"> 3370</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"0 width"</span>, <span class="stringliteral">"Corrupt JPEG"</span>); <span class="comment">// JPEG requires</span></div> +<div class="line"><a name="l03371"></a><span class="lineno"> 3371</span>  c = stbi__get8(s);</div> +<div class="line"><a name="l03372"></a><span class="lineno"> 3372</span>  <span class="keywordflow">if</span> (c != 3 && c != 1 && c != 4)</div> +<div class="line"><a name="l03373"></a><span class="lineno"> 3373</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad component count"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03374"></a><span class="lineno"> 3374</span>  s->img_n = c;</div> +<div class="line"><a name="l03375"></a><span class="lineno"> 3375</span>  <span class="keywordflow">for</span> (i = 0; i < c; ++i) {</div> +<div class="line"><a name="l03376"></a><span class="lineno"> 3376</span>  z->img_comp[i].data = NULL;</div> +<div class="line"><a name="l03377"></a><span class="lineno"> 3377</span>  z->img_comp[i].linebuf = NULL;</div> +<div class="line"><a name="l03378"></a><span class="lineno"> 3378</span>  }</div> +<div class="line"><a name="l03379"></a><span class="lineno"> 3379</span> </div> +<div class="line"><a name="l03380"></a><span class="lineno"> 3380</span>  <span class="keywordflow">if</span> (Lf != 8 + 3 * s->img_n)</div> +<div class="line"><a name="l03381"></a><span class="lineno"> 3381</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad SOF len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03382"></a><span class="lineno"> 3382</span> </div> +<div class="line"><a name="l03383"></a><span class="lineno"> 3383</span>  z->rgb = 0;</div> +<div class="line"><a name="l03384"></a><span class="lineno"> 3384</span>  <span class="keywordflow">for</span> (i = 0; i < s->img_n; ++i) {</div> +<div class="line"><a name="l03385"></a><span class="lineno"> 3385</span>  <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> rgb[3] = {<span class="charliteral">'R'</span>, <span class="charliteral">'G'</span>, <span class="charliteral">'B'</span>};</div> +<div class="line"><a name="l03386"></a><span class="lineno"> 3386</span>  z->img_comp[i].id = stbi__get8(s);</div> +<div class="line"><a name="l03387"></a><span class="lineno"> 3387</span>  <span class="keywordflow">if</span> (s->img_n == 3 && z->img_comp[i].id == rgb[i])</div> +<div class="line"><a name="l03388"></a><span class="lineno"> 3388</span>  ++z->rgb;</div> +<div class="line"><a name="l03389"></a><span class="lineno"> 3389</span>  q = stbi__get8(s);</div> +<div class="line"><a name="l03390"></a><span class="lineno"> 3390</span>  z->img_comp[i].h = (q >> 4);</div> +<div class="line"><a name="l03391"></a><span class="lineno"> 3391</span>  <span class="keywordflow">if</span> (!z->img_comp[i].h || z->img_comp[i].h > 4)</div> +<div class="line"><a name="l03392"></a><span class="lineno"> 3392</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad H"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03393"></a><span class="lineno"> 3393</span>  z->img_comp[i].v = q & 15;</div> +<div class="line"><a name="l03394"></a><span class="lineno"> 3394</span>  <span class="keywordflow">if</span> (!z->img_comp[i].v || z->img_comp[i].v > 4)</div> +<div class="line"><a name="l03395"></a><span class="lineno"> 3395</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad V"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03396"></a><span class="lineno"> 3396</span>  z->img_comp[i].tq = stbi__get8(s);</div> +<div class="line"><a name="l03397"></a><span class="lineno"> 3397</span>  <span class="keywordflow">if</span> (z->img_comp[i].tq > 3)</div> +<div class="line"><a name="l03398"></a><span class="lineno"> 3398</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad TQ"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03399"></a><span class="lineno"> 3399</span>  }</div> +<div class="line"><a name="l03400"></a><span class="lineno"> 3400</span> </div> +<div class="line"><a name="l03401"></a><span class="lineno"> 3401</span>  <span class="keywordflow">if</span> (scan != STBI__SCAN_load)</div> +<div class="line"><a name="l03402"></a><span class="lineno"> 3402</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03403"></a><span class="lineno"> 3403</span> </div> +<div class="line"><a name="l03404"></a><span class="lineno"> 3404</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0))</div> +<div class="line"><a name="l03405"></a><span class="lineno"> 3405</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Image too large to decode"</span>);</div> +<div class="line"><a name="l03406"></a><span class="lineno"> 3406</span> </div> +<div class="line"><a name="l03407"></a><span class="lineno"> 3407</span>  <span class="keywordflow">for</span> (i = 0; i < s->img_n; ++i) {</div> +<div class="line"><a name="l03408"></a><span class="lineno"> 3408</span>  <span class="keywordflow">if</span> (z->img_comp[i].h > h_max)</div> +<div class="line"><a name="l03409"></a><span class="lineno"> 3409</span>  h_max = z->img_comp[i].h;</div> +<div class="line"><a name="l03410"></a><span class="lineno"> 3410</span>  <span class="keywordflow">if</span> (z->img_comp[i].v > v_max)</div> +<div class="line"><a name="l03411"></a><span class="lineno"> 3411</span>  v_max = z->img_comp[i].v;</div> +<div class="line"><a name="l03412"></a><span class="lineno"> 3412</span>  }</div> +<div class="line"><a name="l03413"></a><span class="lineno"> 3413</span> </div> +<div class="line"><a name="l03414"></a><span class="lineno"> 3414</span>  <span class="comment">// compute interleaved mcu info</span></div> +<div class="line"><a name="l03415"></a><span class="lineno"> 3415</span>  z->img_h_max = h_max;</div> +<div class="line"><a name="l03416"></a><span class="lineno"> 3416</span>  z->img_v_max = v_max;</div> +<div class="line"><a name="l03417"></a><span class="lineno"> 3417</span>  z->img_mcu_w = h_max * 8;</div> +<div class="line"><a name="l03418"></a><span class="lineno"> 3418</span>  z->img_mcu_h = v_max * 8;</div> +<div class="line"><a name="l03419"></a><span class="lineno"> 3419</span>  <span class="comment">// these sizes can't be more than 17 bits</span></div> +<div class="line"><a name="l03420"></a><span class="lineno"> 3420</span>  z->img_mcu_x = (s->img_x + z->img_mcu_w - 1) / z->img_mcu_w;</div> +<div class="line"><a name="l03421"></a><span class="lineno"> 3421</span>  z->img_mcu_y = (s->img_y + z->img_mcu_h - 1) / z->img_mcu_h;</div> +<div class="line"><a name="l03422"></a><span class="lineno"> 3422</span> </div> +<div class="line"><a name="l03423"></a><span class="lineno"> 3423</span>  <span class="keywordflow">for</span> (i = 0; i < s->img_n; ++i) {</div> +<div class="line"><a name="l03424"></a><span class="lineno"> 3424</span>  <span class="comment">// number of effective pixels (e.g. for non-interleaved MCU)</span></div> +<div class="line"><a name="l03425"></a><span class="lineno"> 3425</span>  z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max - 1) / h_max;</div> +<div class="line"><a name="l03426"></a><span class="lineno"> 3426</span>  z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max - 1) / v_max;</div> +<div class="line"><a name="l03427"></a><span class="lineno"> 3427</span>  <span class="comment">// to simplify generation, we'll allocate enough memory to decode</span></div> +<div class="line"><a name="l03428"></a><span class="lineno"> 3428</span>  <span class="comment">// the bogus oversized data from using interleaved MCUs and their</span></div> +<div class="line"><a name="l03429"></a><span class="lineno"> 3429</span>  <span class="comment">// big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't</span></div> +<div class="line"><a name="l03430"></a><span class="lineno"> 3430</span>  <span class="comment">// discard the extra data until colorspace conversion</span></div> +<div class="line"><a name="l03431"></a><span class="lineno"> 3431</span>  <span class="comment">//</span></div> +<div class="line"><a name="l03432"></a><span class="lineno"> 3432</span>  <span class="comment">// img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked</span></div> +<div class="line"><a name="l03433"></a><span class="lineno"> 3433</span>  <span class="comment">// earlier) so these muls can't overflow with 32-bit ints (which we</span></div> +<div class="line"><a name="l03434"></a><span class="lineno"> 3434</span>  <span class="comment">// require)</span></div> +<div class="line"><a name="l03435"></a><span class="lineno"> 3435</span>  z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8;</div> +<div class="line"><a name="l03436"></a><span class="lineno"> 3436</span>  z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8;</div> +<div class="line"><a name="l03437"></a><span class="lineno"> 3437</span>  z->img_comp[i].coeff = 0;</div> +<div class="line"><a name="l03438"></a><span class="lineno"> 3438</span>  z->img_comp[i].raw_coeff = 0;</div> +<div class="line"><a name="l03439"></a><span class="lineno"> 3439</span>  z->img_comp[i].linebuf = NULL;</div> +<div class="line"><a name="l03440"></a><span class="lineno"> 3440</span>  z->img_comp[i].raw_data =</div> +<div class="line"><a name="l03441"></a><span class="lineno"> 3441</span>  stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15);</div> +<div class="line"><a name="l03442"></a><span class="lineno"> 3442</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_data == NULL)</div> +<div class="line"><a name="l03443"></a><span class="lineno"> 3443</span>  <span class="keywordflow">return</span> stbi__free_jpeg_components(</div> +<div class="line"><a name="l03444"></a><span class="lineno"> 3444</span>  z, i + 1, stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>));</div> +<div class="line"><a name="l03445"></a><span class="lineno"> 3445</span>  <span class="comment">// align blocks for idct using mmx/sse</span></div> +<div class="line"><a name="l03446"></a><span class="lineno"> 3446</span>  z->img_comp[i].data =</div> +<div class="line"><a name="l03447"></a><span class="lineno"> 3447</span>  (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)(((<span class="keywordtype">size_t</span>)z->img_comp[i].raw_data + 15) & ~15);</div> +<div class="line"><a name="l03448"></a><span class="lineno"> 3448</span>  <span class="keywordflow">if</span> (z->progressive) {</div> +<div class="line"><a name="l03449"></a><span class="lineno"> 3449</span>  <span class="comment">// w2, h2 are multiples of 8 (see above)</span></div> +<div class="line"><a name="l03450"></a><span class="lineno"> 3450</span>  z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8;</div> +<div class="line"><a name="l03451"></a><span class="lineno"> 3451</span>  z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8;</div> +<div class="line"><a name="l03452"></a><span class="lineno"> 3452</span>  z->img_comp[i].raw_coeff = stbi__malloc_mad3(</div> +<div class="line"><a name="l03453"></a><span class="lineno"> 3453</span>  z->img_comp[i].w2, z->img_comp[i].h2, <span class="keyword">sizeof</span>(<span class="keywordtype">short</span>), 15);</div> +<div class="line"><a name="l03454"></a><span class="lineno"> 3454</span>  <span class="keywordflow">if</span> (z->img_comp[i].raw_coeff == NULL)</div> +<div class="line"><a name="l03455"></a><span class="lineno"> 3455</span>  <span class="keywordflow">return</span> stbi__free_jpeg_components(</div> +<div class="line"><a name="l03456"></a><span class="lineno"> 3456</span>  z, i + 1, stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>));</div> +<div class="line"><a name="l03457"></a><span class="lineno"> 3457</span>  z->img_comp[i].coeff =</div> +<div class="line"><a name="l03458"></a><span class="lineno"> 3458</span>  (<span class="keywordtype">short</span> *)(((<span class="keywordtype">size_t</span>)z->img_comp[i].raw_coeff + 15) & ~15);</div> +<div class="line"><a name="l03459"></a><span class="lineno"> 3459</span>  }</div> +<div class="line"><a name="l03460"></a><span class="lineno"> 3460</span>  }</div> +<div class="line"><a name="l03461"></a><span class="lineno"> 3461</span> </div> +<div class="line"><a name="l03462"></a><span class="lineno"> 3462</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03463"></a><span class="lineno"> 3463</span> }</div> +<div class="line"><a name="l03464"></a><span class="lineno"> 3464</span> </div> +<div class="line"><a name="l03465"></a><span class="lineno"> 3465</span> <span class="comment">// use comparisons since in some cases we handle more than one case (e.g. SOF)</span></div> +<div class="line"><a name="l03466"></a><span class="lineno"> 3466</span> <span class="preprocessor">#define stbi__DNL(x) ((x) == 0xdc)</span></div> +<div class="line"><a name="l03467"></a><span class="lineno"> 3467</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__SOI(x) ((x) == 0xd8)</span></div> +<div class="line"><a name="l03468"></a><span class="lineno"> 3468</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__EOI(x) ((x) == 0xd9)</span></div> +<div class="line"><a name="l03469"></a><span class="lineno"> 3469</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2)</span></div> +<div class="line"><a name="l03470"></a><span class="lineno"> 3470</span> <span class="preprocessor"></span><span class="preprocessor">#define stbi__SOS(x) ((x) == 0xda)</span></div> +<div class="line"><a name="l03471"></a><span class="lineno"> 3471</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03472"></a><span class="lineno"> 3472</span> <span class="preprocessor">#define stbi__SOF_progressive(x) ((x) == 0xc2)</span></div> +<div class="line"><a name="l03473"></a><span class="lineno"> 3473</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03474"></a><span class="lineno"> 3474</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__decode_jpeg_header(stbi__jpeg *z, <span class="keywordtype">int</span> scan)</div> +<div class="line"><a name="l03475"></a><span class="lineno"> 3475</span> {</div> +<div class="line"><a name="l03476"></a><span class="lineno"> 3476</span>  <span class="keywordtype">int</span> m;</div> +<div class="line"><a name="l03477"></a><span class="lineno"> 3477</span>  z->jfif = 0;</div> +<div class="line"><a name="l03478"></a><span class="lineno"> 3478</span>  z->app14_color_transform = -1; <span class="comment">// valid values are 0,1,2</span></div> +<div class="line"><a name="l03479"></a><span class="lineno"> 3479</span>  z->marker = STBI__MARKER_none; <span class="comment">// initialize cached marker to empty</span></div> +<div class="line"><a name="l03480"></a><span class="lineno"> 3480</span>  m = stbi__get_marker(z);</div> +<div class="line"><a name="l03481"></a><span class="lineno"> 3481</span>  <span class="keywordflow">if</span> (!stbi__SOI(m))</div> +<div class="line"><a name="l03482"></a><span class="lineno"> 3482</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no SOI"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03483"></a><span class="lineno"> 3483</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_type)</div> +<div class="line"><a name="l03484"></a><span class="lineno"> 3484</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03485"></a><span class="lineno"> 3485</span>  m = stbi__get_marker(z);</div> +<div class="line"><a name="l03486"></a><span class="lineno"> 3486</span>  <span class="keywordflow">while</span> (!stbi__SOF(m)) {</div> +<div class="line"><a name="l03487"></a><span class="lineno"> 3487</span>  <span class="keywordflow">if</span> (!stbi__process_marker(z, m))</div> +<div class="line"><a name="l03488"></a><span class="lineno"> 3488</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03489"></a><span class="lineno"> 3489</span>  m = stbi__get_marker(z);</div> +<div class="line"><a name="l03490"></a><span class="lineno"> 3490</span>  <span class="keywordflow">while</span> (m == STBI__MARKER_none) {</div> +<div class="line"><a name="l03491"></a><span class="lineno"> 3491</span>  <span class="comment">// some files have extra padding after their blocks, so ok, we'll</span></div> +<div class="line"><a name="l03492"></a><span class="lineno"> 3492</span>  <span class="comment">// scan</span></div> +<div class="line"><a name="l03493"></a><span class="lineno"> 3493</span>  <span class="keywordflow">if</span> (stbi__at_eof(z->s))</div> +<div class="line"><a name="l03494"></a><span class="lineno"> 3494</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no SOF"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03495"></a><span class="lineno"> 3495</span>  m = stbi__get_marker(z);</div> +<div class="line"><a name="l03496"></a><span class="lineno"> 3496</span>  }</div> +<div class="line"><a name="l03497"></a><span class="lineno"> 3497</span>  }</div> +<div class="line"><a name="l03498"></a><span class="lineno"> 3498</span>  z->progressive = stbi__SOF_progressive(m);</div> +<div class="line"><a name="l03499"></a><span class="lineno"> 3499</span>  <span class="keywordflow">if</span> (!stbi__process_frame_header(z, scan))</div> +<div class="line"><a name="l03500"></a><span class="lineno"> 3500</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03501"></a><span class="lineno"> 3501</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03502"></a><span class="lineno"> 3502</span> }</div> +<div class="line"><a name="l03503"></a><span class="lineno"> 3503</span> </div> +<div class="line"><a name="l03504"></a><span class="lineno"> 3504</span> <span class="comment">// decode image to YCbCr format</span></div> +<div class="line"><a name="l03505"></a><span class="lineno"> 3505</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__decode_jpeg_image(stbi__jpeg *j)</div> +<div class="line"><a name="l03506"></a><span class="lineno"> 3506</span> {</div> +<div class="line"><a name="l03507"></a><span class="lineno"> 3507</span>  <span class="keywordtype">int</span> m;</div> +<div class="line"><a name="l03508"></a><span class="lineno"> 3508</span>  <span class="keywordflow">for</span> (m = 0; m < 4; m++) {</div> +<div class="line"><a name="l03509"></a><span class="lineno"> 3509</span>  j->img_comp[m].raw_data = NULL;</div> +<div class="line"><a name="l03510"></a><span class="lineno"> 3510</span>  j->img_comp[m].raw_coeff = NULL;</div> +<div class="line"><a name="l03511"></a><span class="lineno"> 3511</span>  }</div> +<div class="line"><a name="l03512"></a><span class="lineno"> 3512</span>  j->restart_interval = 0;</div> +<div class="line"><a name="l03513"></a><span class="lineno"> 3513</span>  <span class="keywordflow">if</span> (!stbi__decode_jpeg_header(j, STBI__SCAN_load))</div> +<div class="line"><a name="l03514"></a><span class="lineno"> 3514</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03515"></a><span class="lineno"> 3515</span>  m = stbi__get_marker(j);</div> +<div class="line"><a name="l03516"></a><span class="lineno"> 3516</span>  <span class="keywordflow">while</span> (!stbi__EOI(m)) {</div> +<div class="line"><a name="l03517"></a><span class="lineno"> 3517</span>  <span class="keywordflow">if</span> (stbi__SOS(m)) {</div> +<div class="line"><a name="l03518"></a><span class="lineno"> 3518</span>  <span class="keywordflow">if</span> (!stbi__process_scan_header(j))</div> +<div class="line"><a name="l03519"></a><span class="lineno"> 3519</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03520"></a><span class="lineno"> 3520</span>  <span class="keywordflow">if</span> (!stbi__parse_entropy_coded_data(j))</div> +<div class="line"><a name="l03521"></a><span class="lineno"> 3521</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03522"></a><span class="lineno"> 3522</span>  <span class="keywordflow">if</span> (j->marker == STBI__MARKER_none) {</div> +<div class="line"><a name="l03523"></a><span class="lineno"> 3523</span>  <span class="comment">// handle 0s at the end of image data from IP Kamera 9060</span></div> +<div class="line"><a name="l03524"></a><span class="lineno"> 3524</span>  <span class="keywordflow">while</span> (!stbi__at_eof(j->s)) {</div> +<div class="line"><a name="l03525"></a><span class="lineno"> 3525</span>  <span class="keywordtype">int</span> x = stbi__get8(j->s);</div> +<div class="line"><a name="l03526"></a><span class="lineno"> 3526</span>  <span class="keywordflow">if</span> (x == 255) {</div> +<div class="line"><a name="l03527"></a><span class="lineno"> 3527</span>  j->marker = stbi__get8(j->s);</div> +<div class="line"><a name="l03528"></a><span class="lineno"> 3528</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l03529"></a><span class="lineno"> 3529</span>  }</div> +<div class="line"><a name="l03530"></a><span class="lineno"> 3530</span>  }</div> +<div class="line"><a name="l03531"></a><span class="lineno"> 3531</span>  <span class="comment">// if we reach eof without hitting a marker, stbi__get_marker()</span></div> +<div class="line"><a name="l03532"></a><span class="lineno"> 3532</span>  <span class="comment">// below will fail and we'll eventually return 0</span></div> +<div class="line"><a name="l03533"></a><span class="lineno"> 3533</span>  }</div> +<div class="line"><a name="l03534"></a><span class="lineno"> 3534</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stbi__DNL(m)) {</div> +<div class="line"><a name="l03535"></a><span class="lineno"> 3535</span>  <span class="keywordtype">int</span> Ld = stbi__get16be(j->s);</div> +<div class="line"><a name="l03536"></a><span class="lineno"> 3536</span>  stbi__uint32 NL = stbi__get16be(j->s);</div> +<div class="line"><a name="l03537"></a><span class="lineno"> 3537</span>  <span class="keywordflow">if</span> (Ld != 4)</div> +<div class="line"><a name="l03538"></a><span class="lineno"> 3538</span>  stbi__err(<span class="stringliteral">"bad DNL len"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03539"></a><span class="lineno"> 3539</span>  <span class="keywordflow">if</span> (NL != j->s->img_y)</div> +<div class="line"><a name="l03540"></a><span class="lineno"> 3540</span>  stbi__err(<span class="stringliteral">"bad DNL height"</span>, <span class="stringliteral">"Corrupt JPEG"</span>);</div> +<div class="line"><a name="l03541"></a><span class="lineno"> 3541</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l03542"></a><span class="lineno"> 3542</span>  <span class="keywordflow">if</span> (!stbi__process_marker(j, m))</div> +<div class="line"><a name="l03543"></a><span class="lineno"> 3543</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l03544"></a><span class="lineno"> 3544</span>  }</div> +<div class="line"><a name="l03545"></a><span class="lineno"> 3545</span>  m = stbi__get_marker(j);</div> +<div class="line"><a name="l03546"></a><span class="lineno"> 3546</span>  }</div> +<div class="line"><a name="l03547"></a><span class="lineno"> 3547</span>  <span class="keywordflow">if</span> (j->progressive)</div> +<div class="line"><a name="l03548"></a><span class="lineno"> 3548</span>  stbi__jpeg_finish(j);</div> +<div class="line"><a name="l03549"></a><span class="lineno"> 3549</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l03550"></a><span class="lineno"> 3550</span> }</div> <div class="line"><a name="l03551"></a><span class="lineno"> 3551</span> </div> -<div class="line"><a name="l03552"></a><span class="lineno"> 3552</span>  stbi__resample res_comp[4];</div> +<div class="line"><a name="l03552"></a><span class="lineno"> 3552</span> <span class="comment">// static jfif-centered resampling (across block boundaries)</span></div> <div class="line"><a name="l03553"></a><span class="lineno"> 3553</span> </div> -<div class="line"><a name="l03554"></a><span class="lineno"> 3554</span>  <span class="keywordflow">for</span> (k=0; k < decode_n; ++k) {</div> -<div class="line"><a name="l03555"></a><span class="lineno"> 3555</span>  stbi__resample *r = &res_comp[k];</div> +<div class="line"><a name="l03554"></a><span class="lineno"> 3554</span> <span class="keyword">typedef</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *(*resample_row_func)(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in0, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in1,</div> +<div class="line"><a name="l03555"></a><span class="lineno"> 3555</span>  <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs);</div> <div class="line"><a name="l03556"></a><span class="lineno"> 3556</span> </div> -<div class="line"><a name="l03557"></a><span class="lineno"> 3557</span>  <span class="comment">// allocate line buffer big enough for upsampling off the edges</span></div> -<div class="line"><a name="l03558"></a><span class="lineno"> 3558</span>  <span class="comment">// with upsample factor of 4</span></div> -<div class="line"><a name="l03559"></a><span class="lineno"> 3559</span>  z->img_comp[k].linebuf = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc(z->s->img_x + 3);</div> -<div class="line"><a name="l03560"></a><span class="lineno"> 3560</span>  <span class="keywordflow">if</span> (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>); }</div> -<div class="line"><a name="l03561"></a><span class="lineno"> 3561</span> </div> -<div class="line"><a name="l03562"></a><span class="lineno"> 3562</span>  r->hs = z->img_h_max / z->img_comp[k].h;</div> -<div class="line"><a name="l03563"></a><span class="lineno"> 3563</span>  r->vs = z->img_v_max / z->img_comp[k].v;</div> -<div class="line"><a name="l03564"></a><span class="lineno"> 3564</span>  r->ystep = r->vs >> 1;</div> -<div class="line"><a name="l03565"></a><span class="lineno"> 3565</span>  r->w_lores = (z->s->img_x + r->hs-1) / r->hs;</div> -<div class="line"><a name="l03566"></a><span class="lineno"> 3566</span>  r->ypos = 0;</div> -<div class="line"><a name="l03567"></a><span class="lineno"> 3567</span>  r->line0 = r->line1 = z->img_comp[k].data;</div> +<div class="line"><a name="l03557"></a><span class="lineno"> 3557</span> <span class="preprocessor">#define stbi__div4(x) ((stbi_uc)((x) >> 2))</span></div> +<div class="line"><a name="l03558"></a><span class="lineno"> 3558</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03559"></a><span class="lineno"> 3559</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *resample_row_1(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far,</div> +<div class="line"><a name="l03560"></a><span class="lineno"> 3560</span>  <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> +<div class="line"><a name="l03561"></a><span class="lineno"> 3561</span> {</div> +<div class="line"><a name="l03562"></a><span class="lineno"> 3562</span>  STBI_NOTUSED(out);</div> +<div class="line"><a name="l03563"></a><span class="lineno"> 3563</span>  STBI_NOTUSED(in_far);</div> +<div class="line"><a name="l03564"></a><span class="lineno"> 3564</span>  STBI_NOTUSED(w);</div> +<div class="line"><a name="l03565"></a><span class="lineno"> 3565</span>  STBI_NOTUSED(hs);</div> +<div class="line"><a name="l03566"></a><span class="lineno"> 3566</span>  <span class="keywordflow">return</span> in_near;</div> +<div class="line"><a name="l03567"></a><span class="lineno"> 3567</span> }</div> <div class="line"><a name="l03568"></a><span class="lineno"> 3568</span> </div> -<div class="line"><a name="l03569"></a><span class="lineno"> 3569</span>  if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1;</div> -<div class="line"><a name="l03570"></a><span class="lineno"> 3570</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2;</div> -<div class="line"><a name="l03571"></a><span class="lineno"> 3571</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2;</div> -<div class="line"><a name="l03572"></a><span class="lineno"> 3572</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel;</div> -<div class="line"><a name="l03573"></a><span class="lineno"> 3573</span>  <span class="keywordflow">else</span> r->resample = stbi__resample_row_generic;</div> -<div class="line"><a name="l03574"></a><span class="lineno"> 3574</span>  }</div> -<div class="line"><a name="l03575"></a><span class="lineno"> 3575</span> </div> -<div class="line"><a name="l03576"></a><span class="lineno"> 3576</span>  <span class="comment">// can't error after this so, this is safe</span></div> -<div class="line"><a name="l03577"></a><span class="lineno"> 3577</span>  output = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1);</div> -<div class="line"><a name="l03578"></a><span class="lineno"> 3578</span>  <span class="keywordflow">if</span> (!output) { stbi__cleanup_jpeg(z); <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>); }</div> +<div class="line"><a name="l03569"></a><span class="lineno"> 3569</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_v_2(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near,</div> +<div class="line"><a name="l03570"></a><span class="lineno"> 3570</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> +<div class="line"><a name="l03571"></a><span class="lineno"> 3571</span> {</div> +<div class="line"><a name="l03572"></a><span class="lineno"> 3572</span>  <span class="comment">// need to generate two samples vertically for every one in input</span></div> +<div class="line"><a name="l03573"></a><span class="lineno"> 3573</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03574"></a><span class="lineno"> 3574</span>  STBI_NOTUSED(hs);</div> +<div class="line"><a name="l03575"></a><span class="lineno"> 3575</span>  <span class="keywordflow">for</span> (i = 0; i < w; ++i)</div> +<div class="line"><a name="l03576"></a><span class="lineno"> 3576</span>  out[i] = stbi__div4(3 * in_near[i] + in_far[i] + 2);</div> +<div class="line"><a name="l03577"></a><span class="lineno"> 3577</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03578"></a><span class="lineno"> 3578</span> }</div> <div class="line"><a name="l03579"></a><span class="lineno"> 3579</span> </div> -<div class="line"><a name="l03580"></a><span class="lineno"> 3580</span>  <span class="comment">// now go ahead and resample</span></div> -<div class="line"><a name="l03581"></a><span class="lineno"> 3581</span>  <span class="keywordflow">for</span> (j=0; j < z->s->img_y; ++j) {</div> -<div class="line"><a name="l03582"></a><span class="lineno"> 3582</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out = output + n * z->s->img_x * j;</div> -<div class="line"><a name="l03583"></a><span class="lineno"> 3583</span>  <span class="keywordflow">for</span> (k=0; k < decode_n; ++k) {</div> -<div class="line"><a name="l03584"></a><span class="lineno"> 3584</span>  stbi__resample *r = &res_comp[k];</div> -<div class="line"><a name="l03585"></a><span class="lineno"> 3585</span>  <span class="keywordtype">int</span> y_bot = r->ystep >= (r->vs >> 1);</div> -<div class="line"><a name="l03586"></a><span class="lineno"> 3586</span>  coutput[k] = r->resample(z->img_comp[k].linebuf,</div> -<div class="line"><a name="l03587"></a><span class="lineno"> 3587</span>  y_bot ? r->line1 : r->line0,</div> -<div class="line"><a name="l03588"></a><span class="lineno"> 3588</span>  y_bot ? r->line0 : r->line1,</div> -<div class="line"><a name="l03589"></a><span class="lineno"> 3589</span>  r->w_lores, r->hs);</div> -<div class="line"><a name="l03590"></a><span class="lineno"> 3590</span>  <span class="keywordflow">if</span> (++r->ystep >= r->vs) {</div> -<div class="line"><a name="l03591"></a><span class="lineno"> 3591</span>  r->ystep = 0;</div> -<div class="line"><a name="l03592"></a><span class="lineno"> 3592</span>  r->line0 = r->line1;</div> -<div class="line"><a name="l03593"></a><span class="lineno"> 3593</span>  <span class="keywordflow">if</span> (++r->ypos < z->img_comp[k].y)</div> -<div class="line"><a name="l03594"></a><span class="lineno"> 3594</span>  r->line1 += z->img_comp[k].w2;</div> -<div class="line"><a name="l03595"></a><span class="lineno"> 3595</span>  }</div> -<div class="line"><a name="l03596"></a><span class="lineno"> 3596</span>  }</div> -<div class="line"><a name="l03597"></a><span class="lineno"> 3597</span>  <span class="keywordflow">if</span> (n >= 3) {</div> -<div class="line"><a name="l03598"></a><span class="lineno"> 3598</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y = coutput[0];</div> -<div class="line"><a name="l03599"></a><span class="lineno"> 3599</span>  <span class="keywordflow">if</span> (z->s->img_n == 3) {</div> -<div class="line"><a name="l03600"></a><span class="lineno"> 3600</span>  <span class="keywordflow">if</span> (is_rgb) {</div> -<div class="line"><a name="l03601"></a><span class="lineno"> 3601</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) {</div> -<div class="line"><a name="l03602"></a><span class="lineno"> 3602</span>  out[0] = y[i];</div> -<div class="line"><a name="l03603"></a><span class="lineno"> 3603</span>  out[1] = coutput[1][i];</div> -<div class="line"><a name="l03604"></a><span class="lineno"> 3604</span>  out[2] = coutput[2][i];</div> -<div class="line"><a name="l03605"></a><span class="lineno"> 3605</span>  out[3] = 255;</div> -<div class="line"><a name="l03606"></a><span class="lineno"> 3606</span>  out += n;</div> -<div class="line"><a name="l03607"></a><span class="lineno"> 3607</span>  }</div> -<div class="line"><a name="l03608"></a><span class="lineno"> 3608</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03609"></a><span class="lineno"> 3609</span>  z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);</div> -<div class="line"><a name="l03610"></a><span class="lineno"> 3610</span>  }</div> -<div class="line"><a name="l03611"></a><span class="lineno"> 3611</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->s->img_n == 4) {</div> -<div class="line"><a name="l03612"></a><span class="lineno"> 3612</span>  <span class="keywordflow">if</span> (z->app14_color_transform == 0) { <span class="comment">// CMYK</span></div> -<div class="line"><a name="l03613"></a><span class="lineno"> 3613</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) {</div> -<div class="line"><a name="l03614"></a><span class="lineno"> 3614</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> m = coutput[3][i];</div> -<div class="line"><a name="l03615"></a><span class="lineno"> 3615</span>  out[0] = stbi__blinn_8x8(coutput[0][i], m);</div> -<div class="line"><a name="l03616"></a><span class="lineno"> 3616</span>  out[1] = stbi__blinn_8x8(coutput[1][i], m);</div> -<div class="line"><a name="l03617"></a><span class="lineno"> 3617</span>  out[2] = stbi__blinn_8x8(coutput[2][i], m);</div> -<div class="line"><a name="l03618"></a><span class="lineno"> 3618</span>  out[3] = 255;</div> -<div class="line"><a name="l03619"></a><span class="lineno"> 3619</span>  out += n;</div> -<div class="line"><a name="l03620"></a><span class="lineno"> 3620</span>  }</div> -<div class="line"><a name="l03621"></a><span class="lineno"> 3621</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->app14_color_transform == 2) { <span class="comment">// YCCK</span></div> -<div class="line"><a name="l03622"></a><span class="lineno"> 3622</span>  z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);</div> -<div class="line"><a name="l03623"></a><span class="lineno"> 3623</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) {</div> -<div class="line"><a name="l03624"></a><span class="lineno"> 3624</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> m = coutput[3][i];</div> -<div class="line"><a name="l03625"></a><span class="lineno"> 3625</span>  out[0] = stbi__blinn_8x8(255 - out[0], m);</div> -<div class="line"><a name="l03626"></a><span class="lineno"> 3626</span>  out[1] = stbi__blinn_8x8(255 - out[1], m);</div> -<div class="line"><a name="l03627"></a><span class="lineno"> 3627</span>  out[2] = stbi__blinn_8x8(255 - out[2], m);</div> -<div class="line"><a name="l03628"></a><span class="lineno"> 3628</span>  out += n;</div> -<div class="line"><a name="l03629"></a><span class="lineno"> 3629</span>  }</div> -<div class="line"><a name="l03630"></a><span class="lineno"> 3630</span>  } <span class="keywordflow">else</span> { <span class="comment">// YCbCr + alpha? Ignore the fourth channel for now</span></div> -<div class="line"><a name="l03631"></a><span class="lineno"> 3631</span>  z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n);</div> -<div class="line"><a name="l03632"></a><span class="lineno"> 3632</span>  }</div> -<div class="line"><a name="l03633"></a><span class="lineno"> 3633</span>  } <span class="keywordflow">else</span></div> -<div class="line"><a name="l03634"></a><span class="lineno"> 3634</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) {</div> -<div class="line"><a name="l03635"></a><span class="lineno"> 3635</span>  out[0] = out[1] = out[2] = y[i];</div> -<div class="line"><a name="l03636"></a><span class="lineno"> 3636</span>  out[3] = 255; <span class="comment">// not used if n==3</span></div> -<div class="line"><a name="l03637"></a><span class="lineno"> 3637</span>  out += n;</div> -<div class="line"><a name="l03638"></a><span class="lineno"> 3638</span>  }</div> -<div class="line"><a name="l03639"></a><span class="lineno"> 3639</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03640"></a><span class="lineno"> 3640</span>  <span class="keywordflow">if</span> (is_rgb) {</div> -<div class="line"><a name="l03641"></a><span class="lineno"> 3641</span>  <span class="keywordflow">if</span> (n == 1)</div> -<div class="line"><a name="l03642"></a><span class="lineno"> 3642</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i)</div> -<div class="line"><a name="l03643"></a><span class="lineno"> 3643</span>  *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]);</div> -<div class="line"><a name="l03644"></a><span class="lineno"> 3644</span>  <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03645"></a><span class="lineno"> 3645</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i, out += 2) {</div> -<div class="line"><a name="l03646"></a><span class="lineno"> 3646</span>  out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]);</div> -<div class="line"><a name="l03647"></a><span class="lineno"> 3647</span>  out[1] = 255;</div> -<div class="line"><a name="l03648"></a><span class="lineno"> 3648</span>  }</div> -<div class="line"><a name="l03649"></a><span class="lineno"> 3649</span>  }</div> -<div class="line"><a name="l03650"></a><span class="lineno"> 3650</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->s->img_n == 4 && z->app14_color_transform == 0) {</div> -<div class="line"><a name="l03651"></a><span class="lineno"> 3651</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) {</div> -<div class="line"><a name="l03652"></a><span class="lineno"> 3652</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> m = coutput[3][i];</div> -<div class="line"><a name="l03653"></a><span class="lineno"> 3653</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> r = stbi__blinn_8x8(coutput[0][i], m);</div> -<div class="line"><a name="l03654"></a><span class="lineno"> 3654</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> g = stbi__blinn_8x8(coutput[1][i], m);</div> -<div class="line"><a name="l03655"></a><span class="lineno"> 3655</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> b = stbi__blinn_8x8(coutput[2][i], m);</div> -<div class="line"><a name="l03656"></a><span class="lineno"> 3656</span>  out[0] = stbi__compute_y(r, g, b);</div> -<div class="line"><a name="l03657"></a><span class="lineno"> 3657</span>  out[1] = 255;</div> -<div class="line"><a name="l03658"></a><span class="lineno"> 3658</span>  out += n;</div> -<div class="line"><a name="l03659"></a><span class="lineno"> 3659</span>  }</div> -<div class="line"><a name="l03660"></a><span class="lineno"> 3660</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->s->img_n == 4 && z->app14_color_transform == 2) {</div> -<div class="line"><a name="l03661"></a><span class="lineno"> 3661</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) {</div> -<div class="line"><a name="l03662"></a><span class="lineno"> 3662</span>  out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]);</div> -<div class="line"><a name="l03663"></a><span class="lineno"> 3663</span>  out[1] = 255;</div> -<div class="line"><a name="l03664"></a><span class="lineno"> 3664</span>  out += n;</div> -<div class="line"><a name="l03665"></a><span class="lineno"> 3665</span>  }</div> -<div class="line"><a name="l03666"></a><span class="lineno"> 3666</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03667"></a><span class="lineno"> 3667</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y = coutput[0];</div> -<div class="line"><a name="l03668"></a><span class="lineno"> 3668</span>  <span class="keywordflow">if</span> (n == 1)</div> -<div class="line"><a name="l03669"></a><span class="lineno"> 3669</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) out[i] = y[i];</div> -<div class="line"><a name="l03670"></a><span class="lineno"> 3670</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l03671"></a><span class="lineno"> 3671</span>  <span class="keywordflow">for</span> (i=0; i < z->s->img_x; ++i) *out++ = y[i], *out++ = 255;</div> -<div class="line"><a name="l03672"></a><span class="lineno"> 3672</span>  }</div> -<div class="line"><a name="l03673"></a><span class="lineno"> 3673</span>  }</div> -<div class="line"><a name="l03674"></a><span class="lineno"> 3674</span>  }</div> -<div class="line"><a name="l03675"></a><span class="lineno"> 3675</span>  stbi__cleanup_jpeg(z);</div> -<div class="line"><a name="l03676"></a><span class="lineno"> 3676</span>  *out_x = z->s->img_x;</div> -<div class="line"><a name="l03677"></a><span class="lineno"> 3677</span>  *out_y = z->s->img_y;</div> -<div class="line"><a name="l03678"></a><span class="lineno"> 3678</span>  <span class="keywordflow">if</span> (comp) *comp = z->s->img_n >= 3 ? 3 : 1; <span class="comment">// report original components, not output</span></div> -<div class="line"><a name="l03679"></a><span class="lineno"> 3679</span>  <span class="keywordflow">return</span> output;</div> -<div class="line"><a name="l03680"></a><span class="lineno"> 3680</span>  }</div> -<div class="line"><a name="l03681"></a><span class="lineno"> 3681</span> }</div> -<div class="line"><a name="l03682"></a><span class="lineno"> 3682</span> </div> -<div class="line"><a name="l03683"></a><span class="lineno"> 3683</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__jpeg_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l03684"></a><span class="lineno"> 3684</span> {</div> -<div class="line"><a name="l03685"></a><span class="lineno"> 3685</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* result;</div> -<div class="line"><a name="l03686"></a><span class="lineno"> 3686</span>  stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(<span class="keyword">sizeof</span>(stbi__jpeg));</div> -<div class="line"><a name="l03687"></a><span class="lineno"> 3687</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l03688"></a><span class="lineno"> 3688</span>  j->s = s;</div> -<div class="line"><a name="l03689"></a><span class="lineno"> 3689</span>  stbi__setup_jpeg(j);</div> -<div class="line"><a name="l03690"></a><span class="lineno"> 3690</span>  result = load_jpeg_image(j, x,y,comp,req_comp);</div> -<div class="line"><a name="l03691"></a><span class="lineno"> 3691</span>  STBI_FREE(j);</div> -<div class="line"><a name="l03692"></a><span class="lineno"> 3692</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l03693"></a><span class="lineno"> 3693</span> }</div> -<div class="line"><a name="l03694"></a><span class="lineno"> 3694</span> </div> -<div class="line"><a name="l03695"></a><span class="lineno"> 3695</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_test(stbi__context *s)</div> -<div class="line"><a name="l03696"></a><span class="lineno"> 3696</span> {</div> -<div class="line"><a name="l03697"></a><span class="lineno"> 3697</span>  <span class="keywordtype">int</span> r;</div> -<div class="line"><a name="l03698"></a><span class="lineno"> 3698</span>  stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(<span class="keyword">sizeof</span>(stbi__jpeg));</div> -<div class="line"><a name="l03699"></a><span class="lineno"> 3699</span>  j->s = s;</div> -<div class="line"><a name="l03700"></a><span class="lineno"> 3700</span>  stbi__setup_jpeg(j);</div> -<div class="line"><a name="l03701"></a><span class="lineno"> 3701</span>  r = stbi__decode_jpeg_header(j, STBI__SCAN_type);</div> -<div class="line"><a name="l03702"></a><span class="lineno"> 3702</span>  stbi__rewind(s);</div> -<div class="line"><a name="l03703"></a><span class="lineno"> 3703</span>  STBI_FREE(j);</div> -<div class="line"><a name="l03704"></a><span class="lineno"> 3704</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l03705"></a><span class="lineno"> 3705</span> }</div> -<div class="line"><a name="l03706"></a><span class="lineno"> 3706</span> </div> -<div class="line"><a name="l03707"></a><span class="lineno"> 3707</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_info_raw(stbi__jpeg *j, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l03708"></a><span class="lineno"> 3708</span> {</div> -<div class="line"><a name="l03709"></a><span class="lineno"> 3709</span>  <span class="keywordflow">if</span> (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) {</div> -<div class="line"><a name="l03710"></a><span class="lineno"> 3710</span>  stbi__rewind( j->s );</div> -<div class="line"><a name="l03711"></a><span class="lineno"> 3711</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03712"></a><span class="lineno"> 3712</span>  }</div> -<div class="line"><a name="l03713"></a><span class="lineno"> 3713</span>  <span class="keywordflow">if</span> (x) *x = j->s->img_x;</div> -<div class="line"><a name="l03714"></a><span class="lineno"> 3714</span>  <span class="keywordflow">if</span> (y) *y = j->s->img_y;</div> -<div class="line"><a name="l03715"></a><span class="lineno"> 3715</span>  <span class="keywordflow">if</span> (comp) *comp = j->s->img_n >= 3 ? 3 : 1;</div> -<div class="line"><a name="l03716"></a><span class="lineno"> 3716</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03717"></a><span class="lineno"> 3717</span> }</div> -<div class="line"><a name="l03718"></a><span class="lineno"> 3718</span> </div> -<div class="line"><a name="l03719"></a><span class="lineno"> 3719</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l03720"></a><span class="lineno"> 3720</span> {</div> -<div class="line"><a name="l03721"></a><span class="lineno"> 3721</span>  <span class="keywordtype">int</span> result;</div> -<div class="line"><a name="l03722"></a><span class="lineno"> 3722</span>  stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(<span class="keyword">sizeof</span>(stbi__jpeg)));</div> -<div class="line"><a name="l03723"></a><span class="lineno"> 3723</span>  j->s = s;</div> -<div class="line"><a name="l03724"></a><span class="lineno"> 3724</span>  result = stbi__jpeg_info_raw(j, x, y, comp);</div> -<div class="line"><a name="l03725"></a><span class="lineno"> 3725</span>  STBI_FREE(j);</div> -<div class="line"><a name="l03726"></a><span class="lineno"> 3726</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l03727"></a><span class="lineno"> 3727</span> }</div> -<div class="line"><a name="l03728"></a><span class="lineno"> 3728</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l03729"></a><span class="lineno"> 3729</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03730"></a><span class="lineno"> 3730</span> <span class="comment">// public domain zlib decode v0.2 Sean Barrett 2006-11-18</span></div> -<div class="line"><a name="l03731"></a><span class="lineno"> 3731</span> <span class="comment">// simple implementation</span></div> -<div class="line"><a name="l03732"></a><span class="lineno"> 3732</span> <span class="comment">// - all input must be provided in an upfront buffer</span></div> -<div class="line"><a name="l03733"></a><span class="lineno"> 3733</span> <span class="comment">// - all output is written to a single output buffer (can malloc/realloc)</span></div> -<div class="line"><a name="l03734"></a><span class="lineno"> 3734</span> <span class="comment">// performance</span></div> -<div class="line"><a name="l03735"></a><span class="lineno"> 3735</span> <span class="comment">// - fast huffman</span></div> -<div class="line"><a name="l03736"></a><span class="lineno"> 3736</span> </div> -<div class="line"><a name="l03737"></a><span class="lineno"> 3737</span> <span class="preprocessor">#ifndef STBI_NO_ZLIB</span></div> -<div class="line"><a name="l03738"></a><span class="lineno"> 3738</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03739"></a><span class="lineno"> 3739</span> <span class="comment">// fast-way is faster to check than jpeg huffman, but slow way is slower</span></div> -<div class="line"><a name="l03740"></a><span class="lineno"> 3740</span> <span class="preprocessor">#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables</span></div> -<div class="line"><a name="l03741"></a><span class="lineno"> 3741</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1)</span></div> -<div class="line"><a name="l03742"></a><span class="lineno"> 3742</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l03743"></a><span class="lineno"> 3743</span> <span class="comment">// zlib-style huffman encoding</span></div> -<div class="line"><a name="l03744"></a><span class="lineno"> 3744</span> <span class="comment">// (jpegs packs from left, zlib from right, so can't share code)</span></div> -<div class="line"><a name="l03745"></a><span class="lineno"> 3745</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l03746"></a><span class="lineno"> 3746</span> {</div> -<div class="line"><a name="l03747"></a><span class="lineno"> 3747</span>  stbi__uint16 fast[1 << STBI__ZFAST_BITS];</div> -<div class="line"><a name="l03748"></a><span class="lineno"> 3748</span>  stbi__uint16 firstcode[16];</div> -<div class="line"><a name="l03749"></a><span class="lineno"> 3749</span>  <span class="keywordtype">int</span> maxcode[17];</div> -<div class="line"><a name="l03750"></a><span class="lineno"> 3750</span>  stbi__uint16 firstsymbol[16];</div> -<div class="line"><a name="l03751"></a><span class="lineno"> 3751</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> size[288];</div> -<div class="line"><a name="l03752"></a><span class="lineno"> 3752</span>  stbi__uint16 value[288];</div> -<div class="line"><a name="l03753"></a><span class="lineno"> 3753</span> } stbi__zhuffman;</div> -<div class="line"><a name="l03754"></a><span class="lineno"> 3754</span> </div> -<div class="line"><a name="l03755"></a><span class="lineno"> 3755</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bitreverse16(<span class="keywordtype">int</span> n)</div> -<div class="line"><a name="l03756"></a><span class="lineno"> 3756</span> {</div> -<div class="line"><a name="l03757"></a><span class="lineno"> 3757</span>  n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1);</div> -<div class="line"><a name="l03758"></a><span class="lineno"> 3758</span>  n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2);</div> -<div class="line"><a name="l03759"></a><span class="lineno"> 3759</span>  n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4);</div> -<div class="line"><a name="l03760"></a><span class="lineno"> 3760</span>  n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8);</div> -<div class="line"><a name="l03761"></a><span class="lineno"> 3761</span>  <span class="keywordflow">return</span> n;</div> -<div class="line"><a name="l03762"></a><span class="lineno"> 3762</span> }</div> -<div class="line"><a name="l03763"></a><span class="lineno"> 3763</span> </div> -<div class="line"><a name="l03764"></a><span class="lineno"> 3764</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bit_reverse(<span class="keywordtype">int</span> v, <span class="keywordtype">int</span> bits)</div> -<div class="line"><a name="l03765"></a><span class="lineno"> 3765</span> {</div> -<div class="line"><a name="l03766"></a><span class="lineno"> 3766</span>  STBI_ASSERT(bits <= 16);</div> -<div class="line"><a name="l03767"></a><span class="lineno"> 3767</span>  <span class="comment">// to bit reverse n bits, reverse 16 and shift</span></div> -<div class="line"><a name="l03768"></a><span class="lineno"> 3768</span>  <span class="comment">// e.g. 11 bits, bit reverse and shift away 5</span></div> -<div class="line"><a name="l03769"></a><span class="lineno"> 3769</span>  <span class="keywordflow">return</span> stbi__bitreverse16(v) >> (16-bits);</div> -<div class="line"><a name="l03770"></a><span class="lineno"> 3770</span> }</div> -<div class="line"><a name="l03771"></a><span class="lineno"> 3771</span> </div> -<div class="line"><a name="l03772"></a><span class="lineno"> 3772</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zbuild_huffman(stbi__zhuffman *z, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *sizelist, <span class="keywordtype">int</span> num)</div> -<div class="line"><a name="l03773"></a><span class="lineno"> 3773</span> {</div> -<div class="line"><a name="l03774"></a><span class="lineno"> 3774</span>  <span class="keywordtype">int</span> i,k=0;</div> -<div class="line"><a name="l03775"></a><span class="lineno"> 3775</span>  <span class="keywordtype">int</span> code, next_code[16], sizes[17];</div> -<div class="line"><a name="l03776"></a><span class="lineno"> 3776</span> </div> -<div class="line"><a name="l03777"></a><span class="lineno"> 3777</span>  <span class="comment">// DEFLATE spec for generating codes</span></div> -<div class="line"><a name="l03778"></a><span class="lineno"> 3778</span>  memset(sizes, 0, <span class="keyword">sizeof</span>(sizes));</div> -<div class="line"><a name="l03779"></a><span class="lineno"> 3779</span>  memset(z->fast, 0, <span class="keyword">sizeof</span>(z->fast));</div> -<div class="line"><a name="l03780"></a><span class="lineno"> 3780</span>  <span class="keywordflow">for</span> (i=0; i < num; ++i)</div> -<div class="line"><a name="l03781"></a><span class="lineno"> 3781</span>  ++sizes[sizelist[i]];</div> -<div class="line"><a name="l03782"></a><span class="lineno"> 3782</span>  sizes[0] = 0;</div> -<div class="line"><a name="l03783"></a><span class="lineno"> 3783</span>  <span class="keywordflow">for</span> (i=1; i < 16; ++i)</div> -<div class="line"><a name="l03784"></a><span class="lineno"> 3784</span>  <span class="keywordflow">if</span> (sizes[i] > (1 << i))</div> -<div class="line"><a name="l03785"></a><span class="lineno"> 3785</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad sizes"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l03786"></a><span class="lineno"> 3786</span>  code = 0;</div> -<div class="line"><a name="l03787"></a><span class="lineno"> 3787</span>  <span class="keywordflow">for</span> (i=1; i < 16; ++i) {</div> -<div class="line"><a name="l03788"></a><span class="lineno"> 3788</span>  next_code[i] = code;</div> -<div class="line"><a name="l03789"></a><span class="lineno"> 3789</span>  z->firstcode[i] = (stbi__uint16) code;</div> -<div class="line"><a name="l03790"></a><span class="lineno"> 3790</span>  z->firstsymbol[i] = (stbi__uint16) k;</div> -<div class="line"><a name="l03791"></a><span class="lineno"> 3791</span>  code = (code + sizes[i]);</div> -<div class="line"><a name="l03792"></a><span class="lineno"> 3792</span>  <span class="keywordflow">if</span> (sizes[i])</div> -<div class="line"><a name="l03793"></a><span class="lineno"> 3793</span>  <span class="keywordflow">if</span> (code-1 >= (1 << i)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l03794"></a><span class="lineno"> 3794</span>  z->maxcode[i] = code << (16-i); <span class="comment">// preshift for inner loop</span></div> -<div class="line"><a name="l03795"></a><span class="lineno"> 3795</span>  code <<= 1;</div> -<div class="line"><a name="l03796"></a><span class="lineno"> 3796</span>  k += sizes[i];</div> -<div class="line"><a name="l03797"></a><span class="lineno"> 3797</span>  }</div> -<div class="line"><a name="l03798"></a><span class="lineno"> 3798</span>  z->maxcode[16] = 0x10000; <span class="comment">// sentinel</span></div> -<div class="line"><a name="l03799"></a><span class="lineno"> 3799</span>  <span class="keywordflow">for</span> (i=0; i < num; ++i) {</div> -<div class="line"><a name="l03800"></a><span class="lineno"> 3800</span>  <span class="keywordtype">int</span> s = sizelist[i];</div> -<div class="line"><a name="l03801"></a><span class="lineno"> 3801</span>  <span class="keywordflow">if</span> (s) {</div> -<div class="line"><a name="l03802"></a><span class="lineno"> 3802</span>  <span class="keywordtype">int</span> c = next_code[s] - z->firstcode[s] + z->firstsymbol[s];</div> -<div class="line"><a name="l03803"></a><span class="lineno"> 3803</span>  stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i);</div> -<div class="line"><a name="l03804"></a><span class="lineno"> 3804</span>  z->size [c] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> ) s;</div> -<div class="line"><a name="l03805"></a><span class="lineno"> 3805</span>  z->value[c] = (stbi__uint16) i;</div> -<div class="line"><a name="l03806"></a><span class="lineno"> 3806</span>  <span class="keywordflow">if</span> (s <= STBI__ZFAST_BITS) {</div> -<div class="line"><a name="l03807"></a><span class="lineno"> 3807</span>  <span class="keywordtype">int</span> j = stbi__bit_reverse(next_code[s],s);</div> -<div class="line"><a name="l03808"></a><span class="lineno"> 3808</span>  <span class="keywordflow">while</span> (j < (1 << STBI__ZFAST_BITS)) {</div> -<div class="line"><a name="l03809"></a><span class="lineno"> 3809</span>  z->fast[j] = fastv;</div> -<div class="line"><a name="l03810"></a><span class="lineno"> 3810</span>  j += (1 << s);</div> -<div class="line"><a name="l03811"></a><span class="lineno"> 3811</span>  }</div> -<div class="line"><a name="l03812"></a><span class="lineno"> 3812</span>  }</div> -<div class="line"><a name="l03813"></a><span class="lineno"> 3813</span>  ++next_code[s];</div> -<div class="line"><a name="l03814"></a><span class="lineno"> 3814</span>  }</div> -<div class="line"><a name="l03815"></a><span class="lineno"> 3815</span>  }</div> -<div class="line"><a name="l03816"></a><span class="lineno"> 3816</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03817"></a><span class="lineno"> 3817</span> }</div> -<div class="line"><a name="l03818"></a><span class="lineno"> 3818</span> </div> -<div class="line"><a name="l03819"></a><span class="lineno"> 3819</span> <span class="comment">// zlib-from-memory implementation for PNG reading</span></div> -<div class="line"><a name="l03820"></a><span class="lineno"> 3820</span> <span class="comment">// because PNG allows splitting the zlib stream arbitrarily,</span></div> -<div class="line"><a name="l03821"></a><span class="lineno"> 3821</span> <span class="comment">// and it's annoying structurally to have PNG call ZLIB call PNG,</span></div> -<div class="line"><a name="l03822"></a><span class="lineno"> 3822</span> <span class="comment">// we require PNG read all the IDATs and combine them into a single</span></div> -<div class="line"><a name="l03823"></a><span class="lineno"> 3823</span> <span class="comment">// memory buffer</span></div> -<div class="line"><a name="l03824"></a><span class="lineno"> 3824</span> </div> -<div class="line"><a name="l03825"></a><span class="lineno"> 3825</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l03826"></a><span class="lineno"> 3826</span> {</div> -<div class="line"><a name="l03827"></a><span class="lineno"> 3827</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *zbuffer, *zbuffer_end;</div> -<div class="line"><a name="l03828"></a><span class="lineno"> 3828</span>  <span class="keywordtype">int</span> num_bits;</div> -<div class="line"><a name="l03829"></a><span class="lineno"> 3829</span>  stbi__uint32 code_buffer;</div> -<div class="line"><a name="l03830"></a><span class="lineno"> 3830</span> </div> -<div class="line"><a name="l03831"></a><span class="lineno"> 3831</span>  <span class="keywordtype">char</span> *zout;</div> -<div class="line"><a name="l03832"></a><span class="lineno"> 3832</span>  <span class="keywordtype">char</span> *zout_start;</div> -<div class="line"><a name="l03833"></a><span class="lineno"> 3833</span>  <span class="keywordtype">char</span> *zout_end;</div> -<div class="line"><a name="l03834"></a><span class="lineno"> 3834</span>  <span class="keywordtype">int</span> z_expandable;</div> +<div class="line"><a name="l03580"></a><span class="lineno"> 3580</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_h_2(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near,</div> +<div class="line"><a name="l03581"></a><span class="lineno"> 3581</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> +<div class="line"><a name="l03582"></a><span class="lineno"> 3582</span> {</div> +<div class="line"><a name="l03583"></a><span class="lineno"> 3583</span>  <span class="comment">// need to generate two samples horizontally for every one in input</span></div> +<div class="line"><a name="l03584"></a><span class="lineno"> 3584</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03585"></a><span class="lineno"> 3585</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *input = in_near;</div> +<div class="line"><a name="l03586"></a><span class="lineno"> 3586</span> </div> +<div class="line"><a name="l03587"></a><span class="lineno"> 3587</span>  <span class="keywordflow">if</span> (w == 1) {</div> +<div class="line"><a name="l03588"></a><span class="lineno"> 3588</span>  <span class="comment">// if only one sample, can't do any interpolation</span></div> +<div class="line"><a name="l03589"></a><span class="lineno"> 3589</span>  out[0] = out[1] = input[0];</div> +<div class="line"><a name="l03590"></a><span class="lineno"> 3590</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03591"></a><span class="lineno"> 3591</span>  }</div> +<div class="line"><a name="l03592"></a><span class="lineno"> 3592</span> </div> +<div class="line"><a name="l03593"></a><span class="lineno"> 3593</span>  out[0] = input[0];</div> +<div class="line"><a name="l03594"></a><span class="lineno"> 3594</span>  out[1] = stbi__div4(input[0] * 3 + input[1] + 2);</div> +<div class="line"><a name="l03595"></a><span class="lineno"> 3595</span>  <span class="keywordflow">for</span> (i = 1; i < w - 1; ++i) {</div> +<div class="line"><a name="l03596"></a><span class="lineno"> 3596</span>  <span class="keywordtype">int</span> n = 3 * input[i] + 2;</div> +<div class="line"><a name="l03597"></a><span class="lineno"> 3597</span>  out[i * 2 + 0] = stbi__div4(n + input[i - 1]);</div> +<div class="line"><a name="l03598"></a><span class="lineno"> 3598</span>  out[i * 2 + 1] = stbi__div4(n + input[i + 1]);</div> +<div class="line"><a name="l03599"></a><span class="lineno"> 3599</span>  }</div> +<div class="line"><a name="l03600"></a><span class="lineno"> 3600</span>  out[i * 2 + 0] = stbi__div4(input[w - 2] * 3 + input[w - 1] + 2);</div> +<div class="line"><a name="l03601"></a><span class="lineno"> 3601</span>  out[i * 2 + 1] = input[w - 1];</div> +<div class="line"><a name="l03602"></a><span class="lineno"> 3602</span> </div> +<div class="line"><a name="l03603"></a><span class="lineno"> 3603</span>  STBI_NOTUSED(in_far);</div> +<div class="line"><a name="l03604"></a><span class="lineno"> 3604</span>  STBI_NOTUSED(hs);</div> +<div class="line"><a name="l03605"></a><span class="lineno"> 3605</span> </div> +<div class="line"><a name="l03606"></a><span class="lineno"> 3606</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03607"></a><span class="lineno"> 3607</span> }</div> +<div class="line"><a name="l03608"></a><span class="lineno"> 3608</span> </div> +<div class="line"><a name="l03609"></a><span class="lineno"> 3609</span> <span class="preprocessor">#define stbi__div16(x) ((stbi_uc)((x) >> 4))</span></div> +<div class="line"><a name="l03610"></a><span class="lineno"> 3610</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03611"></a><span class="lineno"> 3611</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_hv_2(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near,</div> +<div class="line"><a name="l03612"></a><span class="lineno"> 3612</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> +<div class="line"><a name="l03613"></a><span class="lineno"> 3613</span> {</div> +<div class="line"><a name="l03614"></a><span class="lineno"> 3614</span>  <span class="comment">// need to generate 2x2 samples for every one in input</span></div> +<div class="line"><a name="l03615"></a><span class="lineno"> 3615</span>  <span class="keywordtype">int</span> i, t0, t1;</div> +<div class="line"><a name="l03616"></a><span class="lineno"> 3616</span>  <span class="keywordflow">if</span> (w == 1) {</div> +<div class="line"><a name="l03617"></a><span class="lineno"> 3617</span>  out[0] = out[1] = stbi__div4(3 * in_near[0] + in_far[0] + 2);</div> +<div class="line"><a name="l03618"></a><span class="lineno"> 3618</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03619"></a><span class="lineno"> 3619</span>  }</div> +<div class="line"><a name="l03620"></a><span class="lineno"> 3620</span> </div> +<div class="line"><a name="l03621"></a><span class="lineno"> 3621</span>  t1 = 3 * in_near[0] + in_far[0];</div> +<div class="line"><a name="l03622"></a><span class="lineno"> 3622</span>  out[0] = stbi__div4(t1 + 2);</div> +<div class="line"><a name="l03623"></a><span class="lineno"> 3623</span>  <span class="keywordflow">for</span> (i = 1; i < w; ++i) {</div> +<div class="line"><a name="l03624"></a><span class="lineno"> 3624</span>  t0 = t1;</div> +<div class="line"><a name="l03625"></a><span class="lineno"> 3625</span>  t1 = 3 * in_near[i] + in_far[i];</div> +<div class="line"><a name="l03626"></a><span class="lineno"> 3626</span>  out[i * 2 - 1] = stbi__div16(3 * t0 + t1 + 8);</div> +<div class="line"><a name="l03627"></a><span class="lineno"> 3627</span>  out[i * 2] = stbi__div16(3 * t1 + t0 + 8);</div> +<div class="line"><a name="l03628"></a><span class="lineno"> 3628</span>  }</div> +<div class="line"><a name="l03629"></a><span class="lineno"> 3629</span>  out[w * 2 - 1] = stbi__div4(t1 + 2);</div> +<div class="line"><a name="l03630"></a><span class="lineno"> 3630</span> </div> +<div class="line"><a name="l03631"></a><span class="lineno"> 3631</span>  STBI_NOTUSED(hs);</div> +<div class="line"><a name="l03632"></a><span class="lineno"> 3632</span> </div> +<div class="line"><a name="l03633"></a><span class="lineno"> 3633</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03634"></a><span class="lineno"> 3634</span> }</div> +<div class="line"><a name="l03635"></a><span class="lineno"> 3635</span> </div> +<div class="line"><a name="l03636"></a><span class="lineno"> 3636</span> <span class="preprocessor">#if defined(STBI_SSE2) || defined(STBI_NEON)</span></div> +<div class="line"><a name="l03637"></a><span class="lineno"> 3637</span> <span class="preprocessor"></span><span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_hv_2_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near,</div> +<div class="line"><a name="l03638"></a><span class="lineno"> 3638</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> +<div class="line"><a name="l03639"></a><span class="lineno"> 3639</span> {</div> +<div class="line"><a name="l03640"></a><span class="lineno"> 3640</span>  <span class="comment">// need to generate 2x2 samples for every one in input</span></div> +<div class="line"><a name="l03641"></a><span class="lineno"> 3641</span>  <span class="keywordtype">int</span> i = 0, t0, t1;</div> +<div class="line"><a name="l03642"></a><span class="lineno"> 3642</span> </div> +<div class="line"><a name="l03643"></a><span class="lineno"> 3643</span>  <span class="keywordflow">if</span> (w == 1) {</div> +<div class="line"><a name="l03644"></a><span class="lineno"> 3644</span>  out[0] = out[1] = stbi__div4(3 * in_near[0] + in_far[0] + 2);</div> +<div class="line"><a name="l03645"></a><span class="lineno"> 3645</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03646"></a><span class="lineno"> 3646</span>  }</div> +<div class="line"><a name="l03647"></a><span class="lineno"> 3647</span> </div> +<div class="line"><a name="l03648"></a><span class="lineno"> 3648</span>  t1 = 3 * in_near[0] + in_far[0];</div> +<div class="line"><a name="l03649"></a><span class="lineno"> 3649</span>  <span class="comment">// process groups of 8 pixels for as long as we can.</span></div> +<div class="line"><a name="l03650"></a><span class="lineno"> 3650</span>  <span class="comment">// note we can't handle the last pixel in a row in this loop</span></div> +<div class="line"><a name="l03651"></a><span class="lineno"> 3651</span>  <span class="comment">// because we need to handle the filter boundary conditions.</span></div> +<div class="line"><a name="l03652"></a><span class="lineno"> 3652</span>  <span class="keywordflow">for</span> (; i < ((w - 1) & ~7); i += 8) {</div> +<div class="line"><a name="l03653"></a><span class="lineno"> 3653</span> <span class="preprocessor">#if defined(STBI_SSE2)</span></div> +<div class="line"><a name="l03654"></a><span class="lineno"> 3654</span> <span class="preprocessor"></span> <span class="comment">// load and perform the vertical filtering pass</span></div> +<div class="line"><a name="l03655"></a><span class="lineno"> 3655</span>  <span class="comment">// this uses 3*x + y = 4*x + (y - x)</span></div> +<div class="line"><a name="l03656"></a><span class="lineno"> 3656</span>  __m128i zero = _mm_setzero_si128();</div> +<div class="line"><a name="l03657"></a><span class="lineno"> 3657</span>  __m128i farb = _mm_loadl_epi64((__m128i *)(in_far + i));</div> +<div class="line"><a name="l03658"></a><span class="lineno"> 3658</span>  __m128i nearb = _mm_loadl_epi64((__m128i *)(in_near + i));</div> +<div class="line"><a name="l03659"></a><span class="lineno"> 3659</span>  __m128i farw = _mm_unpacklo_epi8(farb, zero);</div> +<div class="line"><a name="l03660"></a><span class="lineno"> 3660</span>  __m128i nearw = _mm_unpacklo_epi8(nearb, zero);</div> +<div class="line"><a name="l03661"></a><span class="lineno"> 3661</span>  __m128i diff = _mm_sub_epi16(farw, nearw);</div> +<div class="line"><a name="l03662"></a><span class="lineno"> 3662</span>  __m128i nears = _mm_slli_epi16(nearw, 2);</div> +<div class="line"><a name="l03663"></a><span class="lineno"> 3663</span>  __m128i curr = _mm_add_epi16(nears, diff); <span class="comment">// current row</span></div> +<div class="line"><a name="l03664"></a><span class="lineno"> 3664</span> </div> +<div class="line"><a name="l03665"></a><span class="lineno"> 3665</span>  <span class="comment">// horizontal filter works the same based on shifted vers of current</span></div> +<div class="line"><a name="l03666"></a><span class="lineno"> 3666</span>  <span class="comment">// row. "prev" is current row shifted right by 1 pixel; we need to</span></div> +<div class="line"><a name="l03667"></a><span class="lineno"> 3667</span>  <span class="comment">// insert the previous pixel value (from t1).</span></div> +<div class="line"><a name="l03668"></a><span class="lineno"> 3668</span>  <span class="comment">// "next" is current row shifted left by 1 pixel, with first pixel</span></div> +<div class="line"><a name="l03669"></a><span class="lineno"> 3669</span>  <span class="comment">// of next block of 8 pixels added in.</span></div> +<div class="line"><a name="l03670"></a><span class="lineno"> 3670</span>  __m128i prv0 = _mm_slli_si128(curr, 2);</div> +<div class="line"><a name="l03671"></a><span class="lineno"> 3671</span>  __m128i nxt0 = _mm_srli_si128(curr, 2);</div> +<div class="line"><a name="l03672"></a><span class="lineno"> 3672</span>  __m128i prev = _mm_insert_epi16(prv0, t1, 0);</div> +<div class="line"><a name="l03673"></a><span class="lineno"> 3673</span>  __m128i next =</div> +<div class="line"><a name="l03674"></a><span class="lineno"> 3674</span>  _mm_insert_epi16(nxt0, 3 * in_near[i + 8] + in_far[i + 8], 7);</div> +<div class="line"><a name="l03675"></a><span class="lineno"> 3675</span> </div> +<div class="line"><a name="l03676"></a><span class="lineno"> 3676</span>  <span class="comment">// horizontal filter, polyphase implementation since it's convenient:</span></div> +<div class="line"><a name="l03677"></a><span class="lineno"> 3677</span>  <span class="comment">// even pixels = 3*cur + prev = cur*4 + (prev - cur)</span></div> +<div class="line"><a name="l03678"></a><span class="lineno"> 3678</span>  <span class="comment">// odd pixels = 3*cur + next = cur*4 + (next - cur)</span></div> +<div class="line"><a name="l03679"></a><span class="lineno"> 3679</span>  <span class="comment">// note the shared term.</span></div> +<div class="line"><a name="l03680"></a><span class="lineno"> 3680</span>  __m128i bias = _mm_set1_epi16(8);</div> +<div class="line"><a name="l03681"></a><span class="lineno"> 3681</span>  __m128i curs = _mm_slli_epi16(curr, 2);</div> +<div class="line"><a name="l03682"></a><span class="lineno"> 3682</span>  __m128i prvd = _mm_sub_epi16(prev, curr);</div> +<div class="line"><a name="l03683"></a><span class="lineno"> 3683</span>  __m128i nxtd = _mm_sub_epi16(next, curr);</div> +<div class="line"><a name="l03684"></a><span class="lineno"> 3684</span>  __m128i curb = _mm_add_epi16(curs, bias);</div> +<div class="line"><a name="l03685"></a><span class="lineno"> 3685</span>  __m128i even = _mm_add_epi16(prvd, curb);</div> +<div class="line"><a name="l03686"></a><span class="lineno"> 3686</span>  __m128i odd = _mm_add_epi16(nxtd, curb);</div> +<div class="line"><a name="l03687"></a><span class="lineno"> 3687</span> </div> +<div class="line"><a name="l03688"></a><span class="lineno"> 3688</span>  <span class="comment">// interleave even and odd pixels, then undo scaling.</span></div> +<div class="line"><a name="l03689"></a><span class="lineno"> 3689</span>  __m128i int0 = _mm_unpacklo_epi16(even, odd);</div> +<div class="line"><a name="l03690"></a><span class="lineno"> 3690</span>  __m128i int1 = _mm_unpackhi_epi16(even, odd);</div> +<div class="line"><a name="l03691"></a><span class="lineno"> 3691</span>  __m128i de0 = _mm_srli_epi16(int0, 4);</div> +<div class="line"><a name="l03692"></a><span class="lineno"> 3692</span>  __m128i de1 = _mm_srli_epi16(int1, 4);</div> +<div class="line"><a name="l03693"></a><span class="lineno"> 3693</span> </div> +<div class="line"><a name="l03694"></a><span class="lineno"> 3694</span>  <span class="comment">// pack and write output</span></div> +<div class="line"><a name="l03695"></a><span class="lineno"> 3695</span>  __m128i outv = _mm_packus_epi16(de0, de1);</div> +<div class="line"><a name="l03696"></a><span class="lineno"> 3696</span>  _mm_storeu_si128((__m128i *)(out + i * 2), outv);</div> +<div class="line"><a name="l03697"></a><span class="lineno"> 3697</span> <span class="preprocessor">#elif defined(STBI_NEON)</span></div> +<div class="line"><a name="l03698"></a><span class="lineno"> 3698</span> <span class="preprocessor"></span> <span class="comment">// load and perform the vertical filtering pass</span></div> +<div class="line"><a name="l03699"></a><span class="lineno"> 3699</span>  <span class="comment">// this uses 3*x + y = 4*x + (y - x)</span></div> +<div class="line"><a name="l03700"></a><span class="lineno"> 3700</span>  uint8x8_t farb = vld1_u8(in_far + i);</div> +<div class="line"><a name="l03701"></a><span class="lineno"> 3701</span>  uint8x8_t nearb = vld1_u8(in_near + i);</div> +<div class="line"><a name="l03702"></a><span class="lineno"> 3702</span>  int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb));</div> +<div class="line"><a name="l03703"></a><span class="lineno"> 3703</span>  int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2));</div> +<div class="line"><a name="l03704"></a><span class="lineno"> 3704</span>  int16x8_t curr = vaddq_s16(nears, diff); <span class="comment">// current row</span></div> +<div class="line"><a name="l03705"></a><span class="lineno"> 3705</span> </div> +<div class="line"><a name="l03706"></a><span class="lineno"> 3706</span>  <span class="comment">// horizontal filter works the same based on shifted vers of current</span></div> +<div class="line"><a name="l03707"></a><span class="lineno"> 3707</span>  <span class="comment">// row. "prev" is current row shifted right by 1 pixel; we need to</span></div> +<div class="line"><a name="l03708"></a><span class="lineno"> 3708</span>  <span class="comment">// insert the previous pixel value (from t1).</span></div> +<div class="line"><a name="l03709"></a><span class="lineno"> 3709</span>  <span class="comment">// "next" is current row shifted left by 1 pixel, with first pixel</span></div> +<div class="line"><a name="l03710"></a><span class="lineno"> 3710</span>  <span class="comment">// of next block of 8 pixels added in.</span></div> +<div class="line"><a name="l03711"></a><span class="lineno"> 3711</span>  int16x8_t prv0 = vextq_s16(curr, curr, 7);</div> +<div class="line"><a name="l03712"></a><span class="lineno"> 3712</span>  int16x8_t nxt0 = vextq_s16(curr, curr, 1);</div> +<div class="line"><a name="l03713"></a><span class="lineno"> 3713</span>  int16x8_t prev = vsetq_lane_s16(t1, prv0, 0);</div> +<div class="line"><a name="l03714"></a><span class="lineno"> 3714</span>  int16x8_t next =</div> +<div class="line"><a name="l03715"></a><span class="lineno"> 3715</span>  vsetq_lane_s16(3 * in_near[i + 8] + in_far[i + 8], nxt0, 7);</div> +<div class="line"><a name="l03716"></a><span class="lineno"> 3716</span> </div> +<div class="line"><a name="l03717"></a><span class="lineno"> 3717</span>  <span class="comment">// horizontal filter, polyphase implementation since it's convenient:</span></div> +<div class="line"><a name="l03718"></a><span class="lineno"> 3718</span>  <span class="comment">// even pixels = 3*cur + prev = cur*4 + (prev - cur)</span></div> +<div class="line"><a name="l03719"></a><span class="lineno"> 3719</span>  <span class="comment">// odd pixels = 3*cur + next = cur*4 + (next - cur)</span></div> +<div class="line"><a name="l03720"></a><span class="lineno"> 3720</span>  <span class="comment">// note the shared term.</span></div> +<div class="line"><a name="l03721"></a><span class="lineno"> 3721</span>  int16x8_t curs = vshlq_n_s16(curr, 2);</div> +<div class="line"><a name="l03722"></a><span class="lineno"> 3722</span>  int16x8_t prvd = vsubq_s16(prev, curr);</div> +<div class="line"><a name="l03723"></a><span class="lineno"> 3723</span>  int16x8_t nxtd = vsubq_s16(next, curr);</div> +<div class="line"><a name="l03724"></a><span class="lineno"> 3724</span>  int16x8_t even = vaddq_s16(curs, prvd);</div> +<div class="line"><a name="l03725"></a><span class="lineno"> 3725</span>  int16x8_t odd = vaddq_s16(curs, nxtd);</div> +<div class="line"><a name="l03726"></a><span class="lineno"> 3726</span> </div> +<div class="line"><a name="l03727"></a><span class="lineno"> 3727</span>  <span class="comment">// undo scaling and round, then store with even/odd phases interleaved</span></div> +<div class="line"><a name="l03728"></a><span class="lineno"> 3728</span>  uint8x8x2_t o;</div> +<div class="line"><a name="l03729"></a><span class="lineno"> 3729</span>  o.val[0] = vqrshrun_n_s16(even, 4);</div> +<div class="line"><a name="l03730"></a><span class="lineno"> 3730</span>  o.val[1] = vqrshrun_n_s16(odd, 4);</div> +<div class="line"><a name="l03731"></a><span class="lineno"> 3731</span>  vst2_u8(out + i * 2, o);</div> +<div class="line"><a name="l03732"></a><span class="lineno"> 3732</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03733"></a><span class="lineno"> 3733</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03734"></a><span class="lineno"> 3734</span>  <span class="comment">// "previous" value for next iter</span></div> +<div class="line"><a name="l03735"></a><span class="lineno"> 3735</span>  t1 = 3 * in_near[i + 7] + in_far[i + 7];</div> +<div class="line"><a name="l03736"></a><span class="lineno"> 3736</span>  }</div> +<div class="line"><a name="l03737"></a><span class="lineno"> 3737</span> </div> +<div class="line"><a name="l03738"></a><span class="lineno"> 3738</span>  t0 = t1;</div> +<div class="line"><a name="l03739"></a><span class="lineno"> 3739</span>  t1 = 3 * in_near[i] + in_far[i];</div> +<div class="line"><a name="l03740"></a><span class="lineno"> 3740</span>  out[i * 2] = stbi__div16(3 * t1 + t0 + 8);</div> +<div class="line"><a name="l03741"></a><span class="lineno"> 3741</span> </div> +<div class="line"><a name="l03742"></a><span class="lineno"> 3742</span>  <span class="keywordflow">for</span> (++i; i < w; ++i) {</div> +<div class="line"><a name="l03743"></a><span class="lineno"> 3743</span>  t0 = t1;</div> +<div class="line"><a name="l03744"></a><span class="lineno"> 3744</span>  t1 = 3 * in_near[i] + in_far[i];</div> +<div class="line"><a name="l03745"></a><span class="lineno"> 3745</span>  out[i * 2 - 1] = stbi__div16(3 * t0 + t1 + 8);</div> +<div class="line"><a name="l03746"></a><span class="lineno"> 3746</span>  out[i * 2] = stbi__div16(3 * t1 + t0 + 8);</div> +<div class="line"><a name="l03747"></a><span class="lineno"> 3747</span>  }</div> +<div class="line"><a name="l03748"></a><span class="lineno"> 3748</span>  out[w * 2 - 1] = stbi__div4(t1 + 2);</div> +<div class="line"><a name="l03749"></a><span class="lineno"> 3749</span> </div> +<div class="line"><a name="l03750"></a><span class="lineno"> 3750</span>  STBI_NOTUSED(hs);</div> +<div class="line"><a name="l03751"></a><span class="lineno"> 3751</span> </div> +<div class="line"><a name="l03752"></a><span class="lineno"> 3752</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03753"></a><span class="lineno"> 3753</span> }</div> +<div class="line"><a name="l03754"></a><span class="lineno"> 3754</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03755"></a><span class="lineno"> 3755</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03756"></a><span class="lineno"> 3756</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__resample_row_generic(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_near,</div> +<div class="line"><a name="l03757"></a><span class="lineno"> 3757</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in_far, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> hs)</div> +<div class="line"><a name="l03758"></a><span class="lineno"> 3758</span> {</div> +<div class="line"><a name="l03759"></a><span class="lineno"> 3759</span>  <span class="comment">// resample with nearest-neighbor</span></div> +<div class="line"><a name="l03760"></a><span class="lineno"> 3760</span>  <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l03761"></a><span class="lineno"> 3761</span>  STBI_NOTUSED(in_far);</div> +<div class="line"><a name="l03762"></a><span class="lineno"> 3762</span>  <span class="keywordflow">for</span> (i = 0; i < w; ++i)</div> +<div class="line"><a name="l03763"></a><span class="lineno"> 3763</span>  <span class="keywordflow">for</span> (j = 0; j < hs; ++j)</div> +<div class="line"><a name="l03764"></a><span class="lineno"> 3764</span>  out[i * hs + j] = in_near[i];</div> +<div class="line"><a name="l03765"></a><span class="lineno"> 3765</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l03766"></a><span class="lineno"> 3766</span> }</div> +<div class="line"><a name="l03767"></a><span class="lineno"> 3767</span> </div> +<div class="line"><a name="l03768"></a><span class="lineno"> 3768</span> <span class="comment">// this is a reduced-precision calculation of YCbCr-to-RGB introduced</span></div> +<div class="line"><a name="l03769"></a><span class="lineno"> 3769</span> <span class="comment">// to make sure the code produces the same results in both SIMD and scalar</span></div> +<div class="line"><a name="l03770"></a><span class="lineno"> 3770</span> <span class="preprocessor">#define stbi__float2fixed(x) (((int)((x)*4096.0f + 0.5f)) << 8)</span></div> +<div class="line"><a name="l03771"></a><span class="lineno"> 3771</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> stbi__YCbCr_to_RGB_row(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y,</div> +<div class="line"><a name="l03772"></a><span class="lineno"> 3772</span>  <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcb, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pcr,</div> +<div class="line"><a name="l03773"></a><span class="lineno"> 3773</span>  <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> step)</div> +<div class="line"><a name="l03774"></a><span class="lineno"> 3774</span> {</div> +<div class="line"><a name="l03775"></a><span class="lineno"> 3775</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l03776"></a><span class="lineno"> 3776</span>  <span class="keywordflow">for</span> (i = 0; i < count; ++i) {</div> +<div class="line"><a name="l03777"></a><span class="lineno"> 3777</span>  <span class="keywordtype">int</span> y_fixed = (y[i] << 20) + (1 << 19); <span class="comment">// rounding</span></div> +<div class="line"><a name="l03778"></a><span class="lineno"> 3778</span>  <span class="keywordtype">int</span> r, g, b;</div> +<div class="line"><a name="l03779"></a><span class="lineno"> 3779</span>  <span class="keywordtype">int</span> cr = pcr[i] - 128;</div> +<div class="line"><a name="l03780"></a><span class="lineno"> 3780</span>  <span class="keywordtype">int</span> cb = pcb[i] - 128;</div> +<div class="line"><a name="l03781"></a><span class="lineno"> 3781</span>  r = y_fixed + cr * stbi__float2fixed(1.40200f);</div> +<div class="line"><a name="l03782"></a><span class="lineno"> 3782</span>  g = y_fixed + (cr * -stbi__float2fixed(0.71414f)) +</div> +<div class="line"><a name="l03783"></a><span class="lineno"> 3783</span>  ((cb * -stbi__float2fixed(0.34414f)) & 0xffff0000);</div> +<div class="line"><a name="l03784"></a><span class="lineno"> 3784</span>  b = y_fixed + cb * stbi__float2fixed(1.77200f);</div> +<div class="line"><a name="l03785"></a><span class="lineno"> 3785</span>  r >>= 20;</div> +<div class="line"><a name="l03786"></a><span class="lineno"> 3786</span>  g >>= 20;</div> +<div class="line"><a name="l03787"></a><span class="lineno"> 3787</span>  b >>= 20;</div> +<div class="line"><a name="l03788"></a><span class="lineno"> 3788</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>)r > 255) {</div> +<div class="line"><a name="l03789"></a><span class="lineno"> 3789</span>  <span class="keywordflow">if</span> (r < 0)</div> +<div class="line"><a name="l03790"></a><span class="lineno"> 3790</span>  r = 0;</div> +<div class="line"><a name="l03791"></a><span class="lineno"> 3791</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03792"></a><span class="lineno"> 3792</span>  r = 255;</div> +<div class="line"><a name="l03793"></a><span class="lineno"> 3793</span>  }</div> +<div class="line"><a name="l03794"></a><span class="lineno"> 3794</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>)g > 255) {</div> +<div class="line"><a name="l03795"></a><span class="lineno"> 3795</span>  <span class="keywordflow">if</span> (g < 0)</div> +<div class="line"><a name="l03796"></a><span class="lineno"> 3796</span>  g = 0;</div> +<div class="line"><a name="l03797"></a><span class="lineno"> 3797</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03798"></a><span class="lineno"> 3798</span>  g = 255;</div> +<div class="line"><a name="l03799"></a><span class="lineno"> 3799</span>  }</div> +<div class="line"><a name="l03800"></a><span class="lineno"> 3800</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>)b > 255) {</div> +<div class="line"><a name="l03801"></a><span class="lineno"> 3801</span>  <span class="keywordflow">if</span> (b < 0)</div> +<div class="line"><a name="l03802"></a><span class="lineno"> 3802</span>  b = 0;</div> +<div class="line"><a name="l03803"></a><span class="lineno"> 3803</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03804"></a><span class="lineno"> 3804</span>  b = 255;</div> +<div class="line"><a name="l03805"></a><span class="lineno"> 3805</span>  }</div> +<div class="line"><a name="l03806"></a><span class="lineno"> 3806</span>  out[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)r;</div> +<div class="line"><a name="l03807"></a><span class="lineno"> 3807</span>  out[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)g;</div> +<div class="line"><a name="l03808"></a><span class="lineno"> 3808</span>  out[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)b;</div> +<div class="line"><a name="l03809"></a><span class="lineno"> 3809</span>  out[3] = 255;</div> +<div class="line"><a name="l03810"></a><span class="lineno"> 3810</span>  out += step;</div> +<div class="line"><a name="l03811"></a><span class="lineno"> 3811</span>  }</div> +<div class="line"><a name="l03812"></a><span class="lineno"> 3812</span> }</div> +<div class="line"><a name="l03813"></a><span class="lineno"> 3813</span> </div> +<div class="line"><a name="l03814"></a><span class="lineno"> 3814</span> <span class="preprocessor">#if defined(STBI_SSE2) || defined(STBI_NEON)</span></div> +<div class="line"><a name="l03815"></a><span class="lineno"> 3815</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> stbi__YCbCr_to_RGB_simd(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *y,</div> +<div class="line"><a name="l03816"></a><span class="lineno"> 3816</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *pcb, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *pcr,</div> +<div class="line"><a name="l03817"></a><span class="lineno"> 3817</span>  <span class="keywordtype">int</span> count, <span class="keywordtype">int</span> step)</div> +<div class="line"><a name="l03818"></a><span class="lineno"> 3818</span> {</div> +<div class="line"><a name="l03819"></a><span class="lineno"> 3819</span>  <span class="keywordtype">int</span> i = 0;</div> +<div class="line"><a name="l03820"></a><span class="lineno"> 3820</span> </div> +<div class="line"><a name="l03821"></a><span class="lineno"> 3821</span> <span class="preprocessor">#ifdef STBI_SSE2</span></div> +<div class="line"><a name="l03822"></a><span class="lineno"> 3822</span> <span class="preprocessor"></span> <span class="comment">// step == 3 is pretty ugly on the final interleave, and i'm not convinced</span></div> +<div class="line"><a name="l03823"></a><span class="lineno"> 3823</span>  <span class="comment">// it's useful in practice (you wouldn't use it for textures, for example).</span></div> +<div class="line"><a name="l03824"></a><span class="lineno"> 3824</span>  <span class="comment">// so just accelerate step == 4 case.</span></div> +<div class="line"><a name="l03825"></a><span class="lineno"> 3825</span>  <span class="keywordflow">if</span> (step == 4) {</div> +<div class="line"><a name="l03826"></a><span class="lineno"> 3826</span>  <span class="comment">// this is a fairly straightforward implementation and not</span></div> +<div class="line"><a name="l03827"></a><span class="lineno"> 3827</span>  <span class="comment">// super-optimized.</span></div> +<div class="line"><a name="l03828"></a><span class="lineno"> 3828</span>  __m128i signflip = _mm_set1_epi8(-0x80);</div> +<div class="line"><a name="l03829"></a><span class="lineno"> 3829</span>  __m128i cr_const0 = _mm_set1_epi16((<span class="keywordtype">short</span>)(1.40200f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03830"></a><span class="lineno"> 3830</span>  __m128i cr_const1 = _mm_set1_epi16(-(<span class="keywordtype">short</span>)(0.71414f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03831"></a><span class="lineno"> 3831</span>  __m128i cb_const0 = _mm_set1_epi16(-(<span class="keywordtype">short</span>)(0.34414f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03832"></a><span class="lineno"> 3832</span>  __m128i cb_const1 = _mm_set1_epi16((<span class="keywordtype">short</span>)(1.77200f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03833"></a><span class="lineno"> 3833</span>  __m128i y_bias = _mm_set1_epi8((<span class="keywordtype">char</span>)(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)128);</div> +<div class="line"><a name="l03834"></a><span class="lineno"> 3834</span>  __m128i xw = _mm_set1_epi16(255); <span class="comment">// alpha channel</span></div> <div class="line"><a name="l03835"></a><span class="lineno"> 3835</span> </div> -<div class="line"><a name="l03836"></a><span class="lineno"> 3836</span>  stbi__zhuffman z_length, z_distance;</div> -<div class="line"><a name="l03837"></a><span class="lineno"> 3837</span> } stbi__zbuf;</div> -<div class="line"><a name="l03838"></a><span class="lineno"> 3838</span> </div> -<div class="line"><a name="l03839"></a><span class="lineno"> 3839</span> stbi_inline <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__zget8(stbi__zbuf *z)</div> -<div class="line"><a name="l03840"></a><span class="lineno"> 3840</span> {</div> -<div class="line"><a name="l03841"></a><span class="lineno"> 3841</span>  <span class="keywordflow">if</span> (z->zbuffer >= z->zbuffer_end) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03842"></a><span class="lineno"> 3842</span>  <span class="keywordflow">return</span> *z->zbuffer++;</div> -<div class="line"><a name="l03843"></a><span class="lineno"> 3843</span> }</div> -<div class="line"><a name="l03844"></a><span class="lineno"> 3844</span> </div> -<div class="line"><a name="l03845"></a><span class="lineno"> 3845</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__fill_bits(stbi__zbuf *z)</div> -<div class="line"><a name="l03846"></a><span class="lineno"> 3846</span> {</div> -<div class="line"><a name="l03847"></a><span class="lineno"> 3847</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l03848"></a><span class="lineno"> 3848</span>  STBI_ASSERT(z->code_buffer < (1U << z->num_bits));</div> -<div class="line"><a name="l03849"></a><span class="lineno"> 3849</span>  z->code_buffer |= (<span class="keywordtype">unsigned</span> int) stbi__zget8(z) << z->num_bits;</div> -<div class="line"><a name="l03850"></a><span class="lineno"> 3850</span>  z->num_bits += 8;</div> -<div class="line"><a name="l03851"></a><span class="lineno"> 3851</span>  } <span class="keywordflow">while</span> (z->num_bits <= 24);</div> -<div class="line"><a name="l03852"></a><span class="lineno"> 3852</span> }</div> -<div class="line"><a name="l03853"></a><span class="lineno"> 3853</span> </div> -<div class="line"><a name="l03854"></a><span class="lineno"> 3854</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> stbi__zreceive(stbi__zbuf *z, <span class="keywordtype">int</span> n)</div> -<div class="line"><a name="l03855"></a><span class="lineno"> 3855</span> {</div> -<div class="line"><a name="l03856"></a><span class="lineno"> 3856</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l03857"></a><span class="lineno"> 3857</span>  <span class="keywordflow">if</span> (z->num_bits < n) stbi__fill_bits(z);</div> -<div class="line"><a name="l03858"></a><span class="lineno"> 3858</span>  k = z->code_buffer & ((1 << n) - 1);</div> -<div class="line"><a name="l03859"></a><span class="lineno"> 3859</span>  z->code_buffer >>= n;</div> -<div class="line"><a name="l03860"></a><span class="lineno"> 3860</span>  z->num_bits -= n;</div> -<div class="line"><a name="l03861"></a><span class="lineno"> 3861</span>  <span class="keywordflow">return</span> k;</div> -<div class="line"><a name="l03862"></a><span class="lineno"> 3862</span> }</div> -<div class="line"><a name="l03863"></a><span class="lineno"> 3863</span> </div> -<div class="line"><a name="l03864"></a><span class="lineno"> 3864</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z)</div> -<div class="line"><a name="l03865"></a><span class="lineno"> 3865</span> {</div> -<div class="line"><a name="l03866"></a><span class="lineno"> 3866</span>  <span class="keywordtype">int</span> b,s,k;</div> -<div class="line"><a name="l03867"></a><span class="lineno"> 3867</span>  <span class="comment">// not resolved by fast table, so compute it the slow way</span></div> -<div class="line"><a name="l03868"></a><span class="lineno"> 3868</span>  <span class="comment">// use jpeg approach, which requires MSbits at top</span></div> -<div class="line"><a name="l03869"></a><span class="lineno"> 3869</span>  k = stbi__bit_reverse(a->code_buffer, 16);</div> -<div class="line"><a name="l03870"></a><span class="lineno"> 3870</span>  <span class="keywordflow">for</span> (s=STBI__ZFAST_BITS+1; ; ++s)</div> -<div class="line"><a name="l03871"></a><span class="lineno"> 3871</span>  <span class="keywordflow">if</span> (k < z->maxcode[s])</div> -<div class="line"><a name="l03872"></a><span class="lineno"> 3872</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l03873"></a><span class="lineno"> 3873</span>  <span class="keywordflow">if</span> (s == 16) <span class="keywordflow">return</span> -1; <span class="comment">// invalid code!</span></div> -<div class="line"><a name="l03874"></a><span class="lineno"> 3874</span>  <span class="comment">// code size is s, so:</span></div> -<div class="line"><a name="l03875"></a><span class="lineno"> 3875</span>  b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s];</div> -<div class="line"><a name="l03876"></a><span class="lineno"> 3876</span>  STBI_ASSERT(z->size[b] == s);</div> -<div class="line"><a name="l03877"></a><span class="lineno"> 3877</span>  a->code_buffer >>= s;</div> -<div class="line"><a name="l03878"></a><span class="lineno"> 3878</span>  a->num_bits -= s;</div> -<div class="line"><a name="l03879"></a><span class="lineno"> 3879</span>  <span class="keywordflow">return</span> z->value[b];</div> -<div class="line"><a name="l03880"></a><span class="lineno"> 3880</span> }</div> -<div class="line"><a name="l03881"></a><span class="lineno"> 3881</span> </div> -<div class="line"><a name="l03882"></a><span class="lineno"> 3882</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z)</div> -<div class="line"><a name="l03883"></a><span class="lineno"> 3883</span> {</div> -<div class="line"><a name="l03884"></a><span class="lineno"> 3884</span>  <span class="keywordtype">int</span> b,s;</div> -<div class="line"><a name="l03885"></a><span class="lineno"> 3885</span>  <span class="keywordflow">if</span> (a->num_bits < 16) stbi__fill_bits(a);</div> -<div class="line"><a name="l03886"></a><span class="lineno"> 3886</span>  b = z->fast[a->code_buffer & STBI__ZFAST_MASK];</div> -<div class="line"><a name="l03887"></a><span class="lineno"> 3887</span>  <span class="keywordflow">if</span> (b) {</div> -<div class="line"><a name="l03888"></a><span class="lineno"> 3888</span>  s = b >> 9;</div> -<div class="line"><a name="l03889"></a><span class="lineno"> 3889</span>  a->code_buffer >>= s;</div> -<div class="line"><a name="l03890"></a><span class="lineno"> 3890</span>  a->num_bits -= s;</div> -<div class="line"><a name="l03891"></a><span class="lineno"> 3891</span>  <span class="keywordflow">return</span> b & 511;</div> -<div class="line"><a name="l03892"></a><span class="lineno"> 3892</span>  }</div> -<div class="line"><a name="l03893"></a><span class="lineno"> 3893</span>  <span class="keywordflow">return</span> stbi__zhuffman_decode_slowpath(a, z);</div> -<div class="line"><a name="l03894"></a><span class="lineno"> 3894</span> }</div> -<div class="line"><a name="l03895"></a><span class="lineno"> 3895</span> </div> -<div class="line"><a name="l03896"></a><span class="lineno"> 3896</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zexpand(stbi__zbuf *z, <span class="keywordtype">char</span> *zout, <span class="keywordtype">int</span> n) <span class="comment">// need to make room for n bytes</span></div> -<div class="line"><a name="l03897"></a><span class="lineno"> 3897</span> {</div> -<div class="line"><a name="l03898"></a><span class="lineno"> 3898</span>  <span class="keywordtype">char</span> *q;</div> -<div class="line"><a name="l03899"></a><span class="lineno"> 3899</span>  <span class="keywordtype">int</span> cur, limit, old_limit;</div> -<div class="line"><a name="l03900"></a><span class="lineno"> 3900</span>  z->zout = zout;</div> -<div class="line"><a name="l03901"></a><span class="lineno"> 3901</span>  <span class="keywordflow">if</span> (!z->z_expandable) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"output buffer limit"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l03902"></a><span class="lineno"> 3902</span>  cur = (int) (z->zout - z->zout_start);</div> -<div class="line"><a name="l03903"></a><span class="lineno"> 3903</span>  limit = old_limit = (int) (z->zout_end - z->zout_start);</div> -<div class="line"><a name="l03904"></a><span class="lineno"> 3904</span>  <span class="keywordflow">while</span> (cur + n > limit)</div> -<div class="line"><a name="l03905"></a><span class="lineno"> 3905</span>  limit *= 2;</div> -<div class="line"><a name="l03906"></a><span class="lineno"> 3906</span>  q = (<span class="keywordtype">char</span> *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit);</div> -<div class="line"><a name="l03907"></a><span class="lineno"> 3907</span>  STBI_NOTUSED(old_limit);</div> -<div class="line"><a name="l03908"></a><span class="lineno"> 3908</span>  <span class="keywordflow">if</span> (q == NULL) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l03909"></a><span class="lineno"> 3909</span>  z->zout_start = q;</div> -<div class="line"><a name="l03910"></a><span class="lineno"> 3910</span>  z->zout = q + cur;</div> -<div class="line"><a name="l03911"></a><span class="lineno"> 3911</span>  z->zout_end = q + limit;</div> -<div class="line"><a name="l03912"></a><span class="lineno"> 3912</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03913"></a><span class="lineno"> 3913</span> }</div> -<div class="line"><a name="l03914"></a><span class="lineno"> 3914</span> </div> -<div class="line"><a name="l03915"></a><span class="lineno"> 3915</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zlength_base[31] = {</div> -<div class="line"><a name="l03916"></a><span class="lineno"> 3916</span>  3,4,5,6,7,8,9,10,11,13,</div> -<div class="line"><a name="l03917"></a><span class="lineno"> 3917</span>  15,17,19,23,27,31,35,43,51,59,</div> -<div class="line"><a name="l03918"></a><span class="lineno"> 3918</span>  67,83,99,115,131,163,195,227,258,0,0 };</div> -<div class="line"><a name="l03919"></a><span class="lineno"> 3919</span> </div> -<div class="line"><a name="l03920"></a><span class="lineno"> 3920</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zlength_extra[31]=</div> -<div class="line"><a name="l03921"></a><span class="lineno"> 3921</span> { 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 };</div> -<div class="line"><a name="l03922"></a><span class="lineno"> 3922</span> </div> -<div class="line"><a name="l03923"></a><span class="lineno"> 3923</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,</div> -<div class="line"><a name="l03924"></a><span class="lineno"> 3924</span> 257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0};</div> +<div class="line"><a name="l03836"></a><span class="lineno"> 3836</span>  <span class="keywordflow">for</span> (; i + 7 < count; i += 8) {</div> +<div class="line"><a name="l03837"></a><span class="lineno"> 3837</span>  <span class="comment">// load</span></div> +<div class="line"><a name="l03838"></a><span class="lineno"> 3838</span>  __m128i y_bytes = _mm_loadl_epi64((__m128i *)(y + i));</div> +<div class="line"><a name="l03839"></a><span class="lineno"> 3839</span>  __m128i cr_bytes = _mm_loadl_epi64((__m128i *)(pcr + i));</div> +<div class="line"><a name="l03840"></a><span class="lineno"> 3840</span>  __m128i cb_bytes = _mm_loadl_epi64((__m128i *)(pcb + i));</div> +<div class="line"><a name="l03841"></a><span class="lineno"> 3841</span>  __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); <span class="comment">// -128</span></div> +<div class="line"><a name="l03842"></a><span class="lineno"> 3842</span>  __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); <span class="comment">// -128</span></div> +<div class="line"><a name="l03843"></a><span class="lineno"> 3843</span> </div> +<div class="line"><a name="l03844"></a><span class="lineno"> 3844</span>  <span class="comment">// unpack to short (and left-shift cr, cb by 8)</span></div> +<div class="line"><a name="l03845"></a><span class="lineno"> 3845</span>  __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes);</div> +<div class="line"><a name="l03846"></a><span class="lineno"> 3846</span>  __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased);</div> +<div class="line"><a name="l03847"></a><span class="lineno"> 3847</span>  __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased);</div> +<div class="line"><a name="l03848"></a><span class="lineno"> 3848</span> </div> +<div class="line"><a name="l03849"></a><span class="lineno"> 3849</span>  <span class="comment">// color transform</span></div> +<div class="line"><a name="l03850"></a><span class="lineno"> 3850</span>  __m128i yws = _mm_srli_epi16(yw, 4);</div> +<div class="line"><a name="l03851"></a><span class="lineno"> 3851</span>  __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw);</div> +<div class="line"><a name="l03852"></a><span class="lineno"> 3852</span>  __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw);</div> +<div class="line"><a name="l03853"></a><span class="lineno"> 3853</span>  __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1);</div> +<div class="line"><a name="l03854"></a><span class="lineno"> 3854</span>  __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1);</div> +<div class="line"><a name="l03855"></a><span class="lineno"> 3855</span>  __m128i rws = _mm_add_epi16(cr0, yws);</div> +<div class="line"><a name="l03856"></a><span class="lineno"> 3856</span>  __m128i gwt = _mm_add_epi16(cb0, yws);</div> +<div class="line"><a name="l03857"></a><span class="lineno"> 3857</span>  __m128i bws = _mm_add_epi16(yws, cb1);</div> +<div class="line"><a name="l03858"></a><span class="lineno"> 3858</span>  __m128i gws = _mm_add_epi16(gwt, cr1);</div> +<div class="line"><a name="l03859"></a><span class="lineno"> 3859</span> </div> +<div class="line"><a name="l03860"></a><span class="lineno"> 3860</span>  <span class="comment">// descale</span></div> +<div class="line"><a name="l03861"></a><span class="lineno"> 3861</span>  __m128i rw = _mm_srai_epi16(rws, 4);</div> +<div class="line"><a name="l03862"></a><span class="lineno"> 3862</span>  __m128i bw = _mm_srai_epi16(bws, 4);</div> +<div class="line"><a name="l03863"></a><span class="lineno"> 3863</span>  __m128i gw = _mm_srai_epi16(gws, 4);</div> +<div class="line"><a name="l03864"></a><span class="lineno"> 3864</span> </div> +<div class="line"><a name="l03865"></a><span class="lineno"> 3865</span>  <span class="comment">// back to byte, set up for transpose</span></div> +<div class="line"><a name="l03866"></a><span class="lineno"> 3866</span>  __m128i brb = _mm_packus_epi16(rw, bw);</div> +<div class="line"><a name="l03867"></a><span class="lineno"> 3867</span>  __m128i gxb = _mm_packus_epi16(gw, xw);</div> +<div class="line"><a name="l03868"></a><span class="lineno"> 3868</span> </div> +<div class="line"><a name="l03869"></a><span class="lineno"> 3869</span>  <span class="comment">// transpose to interleave channels</span></div> +<div class="line"><a name="l03870"></a><span class="lineno"> 3870</span>  __m128i t0 = _mm_unpacklo_epi8(brb, gxb);</div> +<div class="line"><a name="l03871"></a><span class="lineno"> 3871</span>  __m128i t1 = _mm_unpackhi_epi8(brb, gxb);</div> +<div class="line"><a name="l03872"></a><span class="lineno"> 3872</span>  __m128i o0 = _mm_unpacklo_epi16(t0, t1);</div> +<div class="line"><a name="l03873"></a><span class="lineno"> 3873</span>  __m128i o1 = _mm_unpackhi_epi16(t0, t1);</div> +<div class="line"><a name="l03874"></a><span class="lineno"> 3874</span> </div> +<div class="line"><a name="l03875"></a><span class="lineno"> 3875</span>  <span class="comment">// store</span></div> +<div class="line"><a name="l03876"></a><span class="lineno"> 3876</span>  _mm_storeu_si128((__m128i *)(out + 0), o0);</div> +<div class="line"><a name="l03877"></a><span class="lineno"> 3877</span>  _mm_storeu_si128((__m128i *)(out + 16), o1);</div> +<div class="line"><a name="l03878"></a><span class="lineno"> 3878</span>  out += 32;</div> +<div class="line"><a name="l03879"></a><span class="lineno"> 3879</span>  }</div> +<div class="line"><a name="l03880"></a><span class="lineno"> 3880</span>  }</div> +<div class="line"><a name="l03881"></a><span class="lineno"> 3881</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03882"></a><span class="lineno"> 3882</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03883"></a><span class="lineno"> 3883</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> +<div class="line"><a name="l03884"></a><span class="lineno"> 3884</span> <span class="preprocessor"></span> <span class="comment">// in this version, step=3 support would be easy to add. but is there</span></div> +<div class="line"><a name="l03885"></a><span class="lineno"> 3885</span>  <span class="comment">// demand?</span></div> +<div class="line"><a name="l03886"></a><span class="lineno"> 3886</span>  <span class="keywordflow">if</span> (step == 4) {</div> +<div class="line"><a name="l03887"></a><span class="lineno"> 3887</span>  <span class="comment">// this is a fairly straightforward implementation and not</span></div> +<div class="line"><a name="l03888"></a><span class="lineno"> 3888</span>  <span class="comment">// super-optimized.</span></div> +<div class="line"><a name="l03889"></a><span class="lineno"> 3889</span>  uint8x8_t signflip = vdup_n_u8(0x80);</div> +<div class="line"><a name="l03890"></a><span class="lineno"> 3890</span>  int16x8_t cr_const0 = vdupq_n_s16((<span class="keywordtype">short</span>)(1.40200f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03891"></a><span class="lineno"> 3891</span>  int16x8_t cr_const1 = vdupq_n_s16(-(<span class="keywordtype">short</span>)(0.71414f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03892"></a><span class="lineno"> 3892</span>  int16x8_t cb_const0 = vdupq_n_s16(-(<span class="keywordtype">short</span>)(0.34414f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03893"></a><span class="lineno"> 3893</span>  int16x8_t cb_const1 = vdupq_n_s16((<span class="keywordtype">short</span>)(1.77200f * 4096.0f + 0.5f));</div> +<div class="line"><a name="l03894"></a><span class="lineno"> 3894</span> </div> +<div class="line"><a name="l03895"></a><span class="lineno"> 3895</span>  <span class="keywordflow">for</span> (; i + 7 < count; i += 8) {</div> +<div class="line"><a name="l03896"></a><span class="lineno"> 3896</span>  <span class="comment">// load</span></div> +<div class="line"><a name="l03897"></a><span class="lineno"> 3897</span>  uint8x8_t y_bytes = vld1_u8(y + i);</div> +<div class="line"><a name="l03898"></a><span class="lineno"> 3898</span>  uint8x8_t cr_bytes = vld1_u8(pcr + i);</div> +<div class="line"><a name="l03899"></a><span class="lineno"> 3899</span>  uint8x8_t cb_bytes = vld1_u8(pcb + i);</div> +<div class="line"><a name="l03900"></a><span class="lineno"> 3900</span>  int8x8_t cr_biased =</div> +<div class="line"><a name="l03901"></a><span class="lineno"> 3901</span>  vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip));</div> +<div class="line"><a name="l03902"></a><span class="lineno"> 3902</span>  int8x8_t cb_biased =</div> +<div class="line"><a name="l03903"></a><span class="lineno"> 3903</span>  vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip));</div> +<div class="line"><a name="l03904"></a><span class="lineno"> 3904</span> </div> +<div class="line"><a name="l03905"></a><span class="lineno"> 3905</span>  <span class="comment">// expand to s16</span></div> +<div class="line"><a name="l03906"></a><span class="lineno"> 3906</span>  int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4));</div> +<div class="line"><a name="l03907"></a><span class="lineno"> 3907</span>  int16x8_t crw = vshll_n_s8(cr_biased, 7);</div> +<div class="line"><a name="l03908"></a><span class="lineno"> 3908</span>  int16x8_t cbw = vshll_n_s8(cb_biased, 7);</div> +<div class="line"><a name="l03909"></a><span class="lineno"> 3909</span> </div> +<div class="line"><a name="l03910"></a><span class="lineno"> 3910</span>  <span class="comment">// color transform</span></div> +<div class="line"><a name="l03911"></a><span class="lineno"> 3911</span>  int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0);</div> +<div class="line"><a name="l03912"></a><span class="lineno"> 3912</span>  int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0);</div> +<div class="line"><a name="l03913"></a><span class="lineno"> 3913</span>  int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1);</div> +<div class="line"><a name="l03914"></a><span class="lineno"> 3914</span>  int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1);</div> +<div class="line"><a name="l03915"></a><span class="lineno"> 3915</span>  int16x8_t rws = vaddq_s16(yws, cr0);</div> +<div class="line"><a name="l03916"></a><span class="lineno"> 3916</span>  int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1);</div> +<div class="line"><a name="l03917"></a><span class="lineno"> 3917</span>  int16x8_t bws = vaddq_s16(yws, cb1);</div> +<div class="line"><a name="l03918"></a><span class="lineno"> 3918</span> </div> +<div class="line"><a name="l03919"></a><span class="lineno"> 3919</span>  <span class="comment">// undo scaling, round, convert to byte</span></div> +<div class="line"><a name="l03920"></a><span class="lineno"> 3920</span>  uint8x8x4_t o;</div> +<div class="line"><a name="l03921"></a><span class="lineno"> 3921</span>  o.val[0] = vqrshrun_n_s16(rws, 4);</div> +<div class="line"><a name="l03922"></a><span class="lineno"> 3922</span>  o.val[1] = vqrshrun_n_s16(gws, 4);</div> +<div class="line"><a name="l03923"></a><span class="lineno"> 3923</span>  o.val[2] = vqrshrun_n_s16(bws, 4);</div> +<div class="line"><a name="l03924"></a><span class="lineno"> 3924</span>  o.val[3] = vdup_n_u8(255);</div> <div class="line"><a name="l03925"></a><span class="lineno"> 3925</span> </div> -<div class="line"><a name="l03926"></a><span class="lineno"> 3926</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zdist_extra[32] =</div> -<div class="line"><a name="l03927"></a><span class="lineno"> 3927</span> { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};</div> -<div class="line"><a name="l03928"></a><span class="lineno"> 3928</span> </div> -<div class="line"><a name="l03929"></a><span class="lineno"> 3929</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_huffman_block(stbi__zbuf *a)</div> -<div class="line"><a name="l03930"></a><span class="lineno"> 3930</span> {</div> -<div class="line"><a name="l03931"></a><span class="lineno"> 3931</span>  <span class="keywordtype">char</span> *zout = a->zout;</div> -<div class="line"><a name="l03932"></a><span class="lineno"> 3932</span>  <span class="keywordflow">for</span>(;;) {</div> -<div class="line"><a name="l03933"></a><span class="lineno"> 3933</span>  <span class="keywordtype">int</span> z = stbi__zhuffman_decode(a, &a->z_length);</div> -<div class="line"><a name="l03934"></a><span class="lineno"> 3934</span>  <span class="keywordflow">if</span> (z < 256) {</div> -<div class="line"><a name="l03935"></a><span class="lineno"> 3935</span>  <span class="keywordflow">if</span> (z < 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,<span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// error in huffman codes</span></div> -<div class="line"><a name="l03936"></a><span class="lineno"> 3936</span>  <span class="keywordflow">if</span> (zout >= a->zout_end) {</div> -<div class="line"><a name="l03937"></a><span class="lineno"> 3937</span>  <span class="keywordflow">if</span> (!stbi__zexpand(a, zout, 1)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03938"></a><span class="lineno"> 3938</span>  zout = a->zout;</div> -<div class="line"><a name="l03939"></a><span class="lineno"> 3939</span>  }</div> -<div class="line"><a name="l03940"></a><span class="lineno"> 3940</span>  *zout++ = (char) z;</div> -<div class="line"><a name="l03941"></a><span class="lineno"> 3941</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03942"></a><span class="lineno"> 3942</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p;</div> -<div class="line"><a name="l03943"></a><span class="lineno"> 3943</span>  <span class="keywordtype">int</span> len,dist;</div> -<div class="line"><a name="l03944"></a><span class="lineno"> 3944</span>  <span class="keywordflow">if</span> (z == 256) {</div> -<div class="line"><a name="l03945"></a><span class="lineno"> 3945</span>  a->zout = zout;</div> -<div class="line"><a name="l03946"></a><span class="lineno"> 3946</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l03947"></a><span class="lineno"> 3947</span>  }</div> -<div class="line"><a name="l03948"></a><span class="lineno"> 3948</span>  z -= 257;</div> -<div class="line"><a name="l03949"></a><span class="lineno"> 3949</span>  len = stbi__zlength_base[z];</div> -<div class="line"><a name="l03950"></a><span class="lineno"> 3950</span>  <span class="keywordflow">if</span> (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]);</div> -<div class="line"><a name="l03951"></a><span class="lineno"> 3951</span>  z = stbi__zhuffman_decode(a, &a->z_distance);</div> -<div class="line"><a name="l03952"></a><span class="lineno"> 3952</span>  <span class="keywordflow">if</span> (z < 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l03953"></a><span class="lineno"> 3953</span>  dist = stbi__zdist_base[z];</div> -<div class="line"><a name="l03954"></a><span class="lineno"> 3954</span>  <span class="keywordflow">if</span> (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]);</div> -<div class="line"><a name="l03955"></a><span class="lineno"> 3955</span>  <span class="keywordflow">if</span> (zout - a->zout_start < dist) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad dist"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l03956"></a><span class="lineno"> 3956</span>  <span class="keywordflow">if</span> (zout + len > a->zout_end) {</div> -<div class="line"><a name="l03957"></a><span class="lineno"> 3957</span>  <span class="keywordflow">if</span> (!stbi__zexpand(a, zout, len)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03958"></a><span class="lineno"> 3958</span>  zout = a->zout;</div> -<div class="line"><a name="l03959"></a><span class="lineno"> 3959</span>  }</div> -<div class="line"><a name="l03960"></a><span class="lineno"> 3960</span>  p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) (zout - dist);</div> -<div class="line"><a name="l03961"></a><span class="lineno"> 3961</span>  <span class="keywordflow">if</span> (dist == 1) { <span class="comment">// run of one byte; common in images.</span></div> -<div class="line"><a name="l03962"></a><span class="lineno"> 3962</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> v = *p;</div> -<div class="line"><a name="l03963"></a><span class="lineno"> 3963</span>  <span class="keywordflow">if</span> (len) { <span class="keywordflow">do</span> *zout++ = v; <span class="keywordflow">while</span> (--len); }</div> -<div class="line"><a name="l03964"></a><span class="lineno"> 3964</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03965"></a><span class="lineno"> 3965</span>  <span class="keywordflow">if</span> (len) { <span class="keywordflow">do</span> *zout++ = *p++; <span class="keywordflow">while</span> (--len); }</div> -<div class="line"><a name="l03966"></a><span class="lineno"> 3966</span>  }</div> -<div class="line"><a name="l03967"></a><span class="lineno"> 3967</span>  }</div> -<div class="line"><a name="l03968"></a><span class="lineno"> 3968</span>  }</div> +<div class="line"><a name="l03926"></a><span class="lineno"> 3926</span>  <span class="comment">// store, interleaving r/g/b/a</span></div> +<div class="line"><a name="l03927"></a><span class="lineno"> 3927</span>  vst4_u8(out, o);</div> +<div class="line"><a name="l03928"></a><span class="lineno"> 3928</span>  out += 8 * 4;</div> +<div class="line"><a name="l03929"></a><span class="lineno"> 3929</span>  }</div> +<div class="line"><a name="l03930"></a><span class="lineno"> 3930</span>  }</div> +<div class="line"><a name="l03931"></a><span class="lineno"> 3931</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03932"></a><span class="lineno"> 3932</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03933"></a><span class="lineno"> 3933</span>  <span class="keywordflow">for</span> (; i < count; ++i) {</div> +<div class="line"><a name="l03934"></a><span class="lineno"> 3934</span>  <span class="keywordtype">int</span> y_fixed = (y[i] << 20) + (1 << 19); <span class="comment">// rounding</span></div> +<div class="line"><a name="l03935"></a><span class="lineno"> 3935</span>  <span class="keywordtype">int</span> r, g, b;</div> +<div class="line"><a name="l03936"></a><span class="lineno"> 3936</span>  <span class="keywordtype">int</span> cr = pcr[i] - 128;</div> +<div class="line"><a name="l03937"></a><span class="lineno"> 3937</span>  <span class="keywordtype">int</span> cb = pcb[i] - 128;</div> +<div class="line"><a name="l03938"></a><span class="lineno"> 3938</span>  r = y_fixed + cr * stbi__float2fixed(1.40200f);</div> +<div class="line"><a name="l03939"></a><span class="lineno"> 3939</span>  g = y_fixed + cr * -stbi__float2fixed(0.71414f) +</div> +<div class="line"><a name="l03940"></a><span class="lineno"> 3940</span>  ((cb * -stbi__float2fixed(0.34414f)) & 0xffff0000);</div> +<div class="line"><a name="l03941"></a><span class="lineno"> 3941</span>  b = y_fixed + cb * stbi__float2fixed(1.77200f);</div> +<div class="line"><a name="l03942"></a><span class="lineno"> 3942</span>  r >>= 20;</div> +<div class="line"><a name="l03943"></a><span class="lineno"> 3943</span>  g >>= 20;</div> +<div class="line"><a name="l03944"></a><span class="lineno"> 3944</span>  b >>= 20;</div> +<div class="line"><a name="l03945"></a><span class="lineno"> 3945</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>)r > 255) {</div> +<div class="line"><a name="l03946"></a><span class="lineno"> 3946</span>  <span class="keywordflow">if</span> (r < 0)</div> +<div class="line"><a name="l03947"></a><span class="lineno"> 3947</span>  r = 0;</div> +<div class="line"><a name="l03948"></a><span class="lineno"> 3948</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03949"></a><span class="lineno"> 3949</span>  r = 255;</div> +<div class="line"><a name="l03950"></a><span class="lineno"> 3950</span>  }</div> +<div class="line"><a name="l03951"></a><span class="lineno"> 3951</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>)g > 255) {</div> +<div class="line"><a name="l03952"></a><span class="lineno"> 3952</span>  <span class="keywordflow">if</span> (g < 0)</div> +<div class="line"><a name="l03953"></a><span class="lineno"> 3953</span>  g = 0;</div> +<div class="line"><a name="l03954"></a><span class="lineno"> 3954</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03955"></a><span class="lineno"> 3955</span>  g = 255;</div> +<div class="line"><a name="l03956"></a><span class="lineno"> 3956</span>  }</div> +<div class="line"><a name="l03957"></a><span class="lineno"> 3957</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">unsigned</span>)b > 255) {</div> +<div class="line"><a name="l03958"></a><span class="lineno"> 3958</span>  <span class="keywordflow">if</span> (b < 0)</div> +<div class="line"><a name="l03959"></a><span class="lineno"> 3959</span>  b = 0;</div> +<div class="line"><a name="l03960"></a><span class="lineno"> 3960</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l03961"></a><span class="lineno"> 3961</span>  b = 255;</div> +<div class="line"><a name="l03962"></a><span class="lineno"> 3962</span>  }</div> +<div class="line"><a name="l03963"></a><span class="lineno"> 3963</span>  out[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)r;</div> +<div class="line"><a name="l03964"></a><span class="lineno"> 3964</span>  out[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)g;</div> +<div class="line"><a name="l03965"></a><span class="lineno"> 3965</span>  out[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)b;</div> +<div class="line"><a name="l03966"></a><span class="lineno"> 3966</span>  out[3] = 255;</div> +<div class="line"><a name="l03967"></a><span class="lineno"> 3967</span>  out += step;</div> +<div class="line"><a name="l03968"></a><span class="lineno"> 3968</span>  }</div> <div class="line"><a name="l03969"></a><span class="lineno"> 3969</span> }</div> -<div class="line"><a name="l03970"></a><span class="lineno"> 3970</span> </div> -<div class="line"><a name="l03971"></a><span class="lineno"> 3971</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__compute_huffman_codes(stbi__zbuf *a)</div> -<div class="line"><a name="l03972"></a><span class="lineno"> 3972</span> {</div> -<div class="line"><a name="l03973"></a><span class="lineno"> 3973</span>  <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 };</div> -<div class="line"><a name="l03974"></a><span class="lineno"> 3974</span>  stbi__zhuffman z_codelength;</div> -<div class="line"><a name="l03975"></a><span class="lineno"> 3975</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> lencodes[286+32+137];<span class="comment">//padding for maximum single op</span></div> -<div class="line"><a name="l03976"></a><span class="lineno"> 3976</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> codelength_sizes[19];</div> -<div class="line"><a name="l03977"></a><span class="lineno"> 3977</span>  <span class="keywordtype">int</span> i,n;</div> +<div class="line"><a name="l03970"></a><span class="lineno"> 3970</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03971"></a><span class="lineno"> 3971</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03972"></a><span class="lineno"> 3972</span> <span class="comment">// set up the kernels</span></div> +<div class="line"><a name="l03973"></a><span class="lineno"> 3973</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__setup_jpeg(stbi__jpeg *j)</div> +<div class="line"><a name="l03974"></a><span class="lineno"> 3974</span> {</div> +<div class="line"><a name="l03975"></a><span class="lineno"> 3975</span>  j->idct_block_kernel = stbi__idct_block;</div> +<div class="line"><a name="l03976"></a><span class="lineno"> 3976</span>  j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row;</div> +<div class="line"><a name="l03977"></a><span class="lineno"> 3977</span>  j->resample_row_hv_2_kernel = stbi__resample_row_hv_2;</div> <div class="line"><a name="l03978"></a><span class="lineno"> 3978</span> </div> -<div class="line"><a name="l03979"></a><span class="lineno"> 3979</span>  <span class="keywordtype">int</span> hlit = stbi__zreceive(a,5) + 257;</div> -<div class="line"><a name="l03980"></a><span class="lineno"> 3980</span>  <span class="keywordtype">int</span> hdist = stbi__zreceive(a,5) + 1;</div> -<div class="line"><a name="l03981"></a><span class="lineno"> 3981</span>  <span class="keywordtype">int</span> hclen = stbi__zreceive(a,4) + 4;</div> -<div class="line"><a name="l03982"></a><span class="lineno"> 3982</span>  <span class="keywordtype">int</span> ntot = hlit + hdist;</div> -<div class="line"><a name="l03983"></a><span class="lineno"> 3983</span> </div> -<div class="line"><a name="l03984"></a><span class="lineno"> 3984</span>  memset(codelength_sizes, 0, <span class="keyword">sizeof</span>(codelength_sizes));</div> -<div class="line"><a name="l03985"></a><span class="lineno"> 3985</span>  <span class="keywordflow">for</span> (i=0; i < hclen; ++i) {</div> -<div class="line"><a name="l03986"></a><span class="lineno"> 3986</span>  <span class="keywordtype">int</span> s = stbi__zreceive(a,3);</div> -<div class="line"><a name="l03987"></a><span class="lineno"> 3987</span>  codelength_sizes[length_dezigzag[i]] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) s;</div> -<div class="line"><a name="l03988"></a><span class="lineno"> 3988</span>  }</div> -<div class="line"><a name="l03989"></a><span class="lineno"> 3989</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l03990"></a><span class="lineno"> 3990</span> </div> -<div class="line"><a name="l03991"></a><span class="lineno"> 3991</span>  n = 0;</div> -<div class="line"><a name="l03992"></a><span class="lineno"> 3992</span>  <span class="keywordflow">while</span> (n < ntot) {</div> -<div class="line"><a name="l03993"></a><span class="lineno"> 3993</span>  <span class="keywordtype">int</span> c = stbi__zhuffman_decode(a, &z_codelength);</div> -<div class="line"><a name="l03994"></a><span class="lineno"> 3994</span>  <span class="keywordflow">if</span> (c < 0 || c >= 19) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l03995"></a><span class="lineno"> 3995</span>  <span class="keywordflow">if</span> (c < 16)</div> -<div class="line"><a name="l03996"></a><span class="lineno"> 3996</span>  lencodes[n++] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) c;</div> -<div class="line"><a name="l03997"></a><span class="lineno"> 3997</span>  <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l03998"></a><span class="lineno"> 3998</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> fill = 0;</div> -<div class="line"><a name="l03999"></a><span class="lineno"> 3999</span>  <span class="keywordflow">if</span> (c == 16) {</div> -<div class="line"><a name="l04000"></a><span class="lineno"> 4000</span>  c = stbi__zreceive(a,2)+3;</div> -<div class="line"><a name="l04001"></a><span class="lineno"> 4001</span>  <span class="keywordflow">if</span> (n == 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04002"></a><span class="lineno"> 4002</span>  fill = lencodes[n-1];</div> -<div class="line"><a name="l04003"></a><span class="lineno"> 4003</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c == 17)</div> -<div class="line"><a name="l04004"></a><span class="lineno"> 4004</span>  c = stbi__zreceive(a,3)+3;</div> -<div class="line"><a name="l04005"></a><span class="lineno"> 4005</span>  <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04006"></a><span class="lineno"> 4006</span>  STBI_ASSERT(c == 18);</div> -<div class="line"><a name="l04007"></a><span class="lineno"> 4007</span>  c = stbi__zreceive(a,7)+11;</div> -<div class="line"><a name="l04008"></a><span class="lineno"> 4008</span>  }</div> -<div class="line"><a name="l04009"></a><span class="lineno"> 4009</span>  <span class="keywordflow">if</span> (ntot - n < c) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04010"></a><span class="lineno"> 4010</span>  memset(lencodes+n, fill, c);</div> -<div class="line"><a name="l04011"></a><span class="lineno"> 4011</span>  n += c;</div> -<div class="line"><a name="l04012"></a><span class="lineno"> 4012</span>  }</div> -<div class="line"><a name="l04013"></a><span class="lineno"> 4013</span>  }</div> -<div class="line"><a name="l04014"></a><span class="lineno"> 4014</span>  <span class="keywordflow">if</span> (n != ntot) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04015"></a><span class="lineno"> 4015</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04016"></a><span class="lineno"> 4016</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04017"></a><span class="lineno"> 4017</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04018"></a><span class="lineno"> 4018</span> }</div> -<div class="line"><a name="l04019"></a><span class="lineno"> 4019</span> </div> -<div class="line"><a name="l04020"></a><span class="lineno"> 4020</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_uncompressed_block(stbi__zbuf *a)</div> -<div class="line"><a name="l04021"></a><span class="lineno"> 4021</span> {</div> -<div class="line"><a name="l04022"></a><span class="lineno"> 4022</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> header[4];</div> -<div class="line"><a name="l04023"></a><span class="lineno"> 4023</span>  <span class="keywordtype">int</span> len,nlen,k;</div> -<div class="line"><a name="l04024"></a><span class="lineno"> 4024</span>  <span class="keywordflow">if</span> (a->num_bits & 7)</div> -<div class="line"><a name="l04025"></a><span class="lineno"> 4025</span>  stbi__zreceive(a, a->num_bits & 7); <span class="comment">// discard</span></div> -<div class="line"><a name="l04026"></a><span class="lineno"> 4026</span>  <span class="comment">// drain the bit-packed data into header</span></div> -<div class="line"><a name="l04027"></a><span class="lineno"> 4027</span>  k = 0;</div> -<div class="line"><a name="l04028"></a><span class="lineno"> 4028</span>  <span class="keywordflow">while</span> (a->num_bits > 0) {</div> -<div class="line"><a name="l04029"></a><span class="lineno"> 4029</span>  header[k++] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) (a->code_buffer & 255); <span class="comment">// suppress MSVC run-time check</span></div> -<div class="line"><a name="l04030"></a><span class="lineno"> 4030</span>  a->code_buffer >>= 8;</div> -<div class="line"><a name="l04031"></a><span class="lineno"> 4031</span>  a->num_bits -= 8;</div> -<div class="line"><a name="l04032"></a><span class="lineno"> 4032</span>  }</div> -<div class="line"><a name="l04033"></a><span class="lineno"> 4033</span>  STBI_ASSERT(a->num_bits == 0);</div> -<div class="line"><a name="l04034"></a><span class="lineno"> 4034</span>  <span class="comment">// now fill header the normal way</span></div> -<div class="line"><a name="l04035"></a><span class="lineno"> 4035</span>  <span class="keywordflow">while</span> (k < 4)</div> -<div class="line"><a name="l04036"></a><span class="lineno"> 4036</span>  header[k++] = stbi__zget8(a);</div> -<div class="line"><a name="l04037"></a><span class="lineno"> 4037</span>  len = header[1] * 256 + header[0];</div> -<div class="line"><a name="l04038"></a><span class="lineno"> 4038</span>  nlen = header[3] * 256 + header[2];</div> -<div class="line"><a name="l04039"></a><span class="lineno"> 4039</span>  <span class="keywordflow">if</span> (nlen != (len ^ 0xffff)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"zlib corrupt"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04040"></a><span class="lineno"> 4040</span>  <span class="keywordflow">if</span> (a->zbuffer + len > a->zbuffer_end) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"read past buffer"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04041"></a><span class="lineno"> 4041</span>  <span class="keywordflow">if</span> (a->zout + len > a->zout_end)</div> -<div class="line"><a name="l04042"></a><span class="lineno"> 4042</span>  <span class="keywordflow">if</span> (!stbi__zexpand(a, a->zout, len)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04043"></a><span class="lineno"> 4043</span>  memcpy(a->zout, a->zbuffer, len);</div> -<div class="line"><a name="l04044"></a><span class="lineno"> 4044</span>  a->zbuffer += len;</div> -<div class="line"><a name="l04045"></a><span class="lineno"> 4045</span>  a->zout += len;</div> -<div class="line"><a name="l04046"></a><span class="lineno"> 4046</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04047"></a><span class="lineno"> 4047</span> }</div> -<div class="line"><a name="l04048"></a><span class="lineno"> 4048</span> </div> -<div class="line"><a name="l04049"></a><span class="lineno"> 4049</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_zlib_header(stbi__zbuf *a)</div> -<div class="line"><a name="l04050"></a><span class="lineno"> 4050</span> {</div> -<div class="line"><a name="l04051"></a><span class="lineno"> 4051</span>  <span class="keywordtype">int</span> cmf = stbi__zget8(a);</div> -<div class="line"><a name="l04052"></a><span class="lineno"> 4052</span>  <span class="keywordtype">int</span> cm = cmf & 15;</div> -<div class="line"><a name="l04053"></a><span class="lineno"> 4053</span>  <span class="comment">/* int cinfo = cmf >> 4; */</span></div> -<div class="line"><a name="l04054"></a><span class="lineno"> 4054</span>  <span class="keywordtype">int</span> flg = stbi__zget8(a);</div> -<div class="line"><a name="l04055"></a><span class="lineno"> 4055</span>  <span class="keywordflow">if</span> ((cmf*256+flg) % 31 != 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad zlib header"</span>,<span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// zlib spec</span></div> -<div class="line"><a name="l04056"></a><span class="lineno"> 4056</span>  <span class="keywordflow">if</span> (flg & 32) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no preset dict"</span>,<span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// preset dictionary not allowed in png</span></div> -<div class="line"><a name="l04057"></a><span class="lineno"> 4057</span>  <span class="keywordflow">if</span> (cm != 8) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad compression"</span>,<span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// DEFLATE required for png</span></div> -<div class="line"><a name="l04058"></a><span class="lineno"> 4058</span>  <span class="comment">// window = 1 << (8 + cinfo)... but who cares, we fully buffer output</span></div> -<div class="line"><a name="l04059"></a><span class="lineno"> 4059</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04060"></a><span class="lineno"> 4060</span> }</div> -<div class="line"><a name="l04061"></a><span class="lineno"> 4061</span> </div> -<div class="line"><a name="l04062"></a><span class="lineno"> 4062</span> <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__zdefault_length[288] =</div> -<div class="line"><a name="l04063"></a><span class="lineno"> 4063</span> {</div> -<div class="line"><a name="l04064"></a><span class="lineno"> 4064</span>  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,</div> -<div class="line"><a name="l04065"></a><span class="lineno"> 4065</span>  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,</div> -<div class="line"><a name="l04066"></a><span class="lineno"> 4066</span>  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,</div> -<div class="line"><a name="l04067"></a><span class="lineno"> 4067</span>  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,</div> -<div class="line"><a name="l04068"></a><span class="lineno"> 4068</span>  8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,</div> -<div class="line"><a name="l04069"></a><span class="lineno"> 4069</span>  9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,</div> -<div class="line"><a name="l04070"></a><span class="lineno"> 4070</span>  9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,</div> -<div class="line"><a name="l04071"></a><span class="lineno"> 4071</span>  9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,</div> -<div class="line"><a name="l04072"></a><span class="lineno"> 4072</span>  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8</div> -<div class="line"><a name="l04073"></a><span class="lineno"> 4073</span> };</div> -<div class="line"><a name="l04074"></a><span class="lineno"> 4074</span> <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__zdefault_distance[32] =</div> -<div class="line"><a name="l04075"></a><span class="lineno"> 4075</span> {</div> -<div class="line"><a name="l04076"></a><span class="lineno"> 4076</span>  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5</div> -<div class="line"><a name="l04077"></a><span class="lineno"> 4077</span> };</div> -<div class="line"><a name="l04078"></a><span class="lineno"> 4078</span> <span class="comment">/*</span></div> -<div class="line"><a name="l04079"></a><span class="lineno"> 4079</span> <span class="comment">Init algorithm:</span></div> -<div class="line"><a name="l04080"></a><span class="lineno"> 4080</span> <span class="comment">{</span></div> -<div class="line"><a name="l04081"></a><span class="lineno"> 4081</span> <span class="comment"> int i; // use <= to match clearly with spec</span></div> -<div class="line"><a name="l04082"></a><span class="lineno"> 4082</span> <span class="comment"> for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8;</span></div> -<div class="line"><a name="l04083"></a><span class="lineno"> 4083</span> <span class="comment"> for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9;</span></div> -<div class="line"><a name="l04084"></a><span class="lineno"> 4084</span> <span class="comment"> for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7;</span></div> -<div class="line"><a name="l04085"></a><span class="lineno"> 4085</span> <span class="comment"> for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8;</span></div> -<div class="line"><a name="l04086"></a><span class="lineno"> 4086</span> <span class="comment"></span></div> -<div class="line"><a name="l04087"></a><span class="lineno"> 4087</span> <span class="comment"> for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5;</span></div> -<div class="line"><a name="l04088"></a><span class="lineno"> 4088</span> <span class="comment">}</span></div> -<div class="line"><a name="l04089"></a><span class="lineno"> 4089</span> <span class="comment">*/</span></div> -<div class="line"><a name="l04090"></a><span class="lineno"> 4090</span> </div> -<div class="line"><a name="l04091"></a><span class="lineno"> 4091</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_zlib(stbi__zbuf *a, <span class="keywordtype">int</span> parse_header)</div> -<div class="line"><a name="l04092"></a><span class="lineno"> 4092</span> {</div> -<div class="line"><a name="l04093"></a><span class="lineno"> 4093</span>  <span class="keywordtype">int</span> <span class="keyword">final</span>, type;</div> -<div class="line"><a name="l04094"></a><span class="lineno"> 4094</span>  <span class="keywordflow">if</span> (parse_header)</div> -<div class="line"><a name="l04095"></a><span class="lineno"> 4095</span>  <span class="keywordflow">if</span> (!stbi__parse_zlib_header(a)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04096"></a><span class="lineno"> 4096</span>  a->num_bits = 0;</div> -<div class="line"><a name="l04097"></a><span class="lineno"> 4097</span>  a->code_buffer = 0;</div> -<div class="line"><a name="l04098"></a><span class="lineno"> 4098</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l04099"></a><span class="lineno"> 4099</span>  <span class="keyword">final</span> = stbi__zreceive(a,1);</div> -<div class="line"><a name="l04100"></a><span class="lineno"> 4100</span>  type = stbi__zreceive(a,2);</div> -<div class="line"><a name="l04101"></a><span class="lineno"> 4101</span>  <span class="keywordflow">if</span> (type == 0) {</div> -<div class="line"><a name="l04102"></a><span class="lineno"> 4102</span>  <span class="keywordflow">if</span> (!stbi__parse_uncompressed_block(a)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04103"></a><span class="lineno"> 4103</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == 3) {</div> -<div class="line"><a name="l04104"></a><span class="lineno"> 4104</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04105"></a><span class="lineno"> 4105</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04106"></a><span class="lineno"> 4106</span>  <span class="keywordflow">if</span> (type == 1) {</div> -<div class="line"><a name="l04107"></a><span class="lineno"> 4107</span>  <span class="comment">// use fixed code lengths</span></div> -<div class="line"><a name="l04108"></a><span class="lineno"> 4108</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04109"></a><span class="lineno"> 4109</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04110"></a><span class="lineno"> 4110</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04111"></a><span class="lineno"> 4111</span>  <span class="keywordflow">if</span> (!stbi__compute_huffman_codes(a)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04112"></a><span class="lineno"> 4112</span>  }</div> -<div class="line"><a name="l04113"></a><span class="lineno"> 4113</span>  <span class="keywordflow">if</span> (!stbi__parse_huffman_block(a)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04114"></a><span class="lineno"> 4114</span>  }</div> -<div class="line"><a name="l04115"></a><span class="lineno"> 4115</span>  } <span class="keywordflow">while</span> (!<span class="keyword">final</span>);</div> -<div class="line"><a name="l04116"></a><span class="lineno"> 4116</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04117"></a><span class="lineno"> 4117</span> }</div> -<div class="line"><a name="l04118"></a><span class="lineno"> 4118</span> </div> -<div class="line"><a name="l04119"></a><span class="lineno"> 4119</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__do_zlib(stbi__zbuf *a, <span class="keywordtype">char</span> *obuf, <span class="keywordtype">int</span> olen, <span class="keywordtype">int</span> exp, <span class="keywordtype">int</span> parse_header)</div> -<div class="line"><a name="l04120"></a><span class="lineno"> 4120</span> {</div> -<div class="line"><a name="l04121"></a><span class="lineno"> 4121</span>  a->zout_start = obuf;</div> -<div class="line"><a name="l04122"></a><span class="lineno"> 4122</span>  a->zout = obuf;</div> -<div class="line"><a name="l04123"></a><span class="lineno"> 4123</span>  a->zout_end = obuf + olen;</div> -<div class="line"><a name="l04124"></a><span class="lineno"> 4124</span>  a->z_expandable = exp;</div> -<div class="line"><a name="l04125"></a><span class="lineno"> 4125</span> </div> -<div class="line"><a name="l04126"></a><span class="lineno"> 4126</span>  <span class="keywordflow">return</span> stbi__parse_zlib(a, parse_header);</div> -<div class="line"><a name="l04127"></a><span class="lineno"> 4127</span> }</div> -<div class="line"><a name="l04128"></a><span class="lineno"> 4128</span> </div> -<div class="line"><a name="l04129"></a><span class="lineno"> 4129</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> initial_size, <span class="keywordtype">int</span> *outlen)</div> -<div class="line"><a name="l04130"></a><span class="lineno"> 4130</span> {</div> -<div class="line"><a name="l04131"></a><span class="lineno"> 4131</span>  stbi__zbuf a;</div> -<div class="line"><a name="l04132"></a><span class="lineno"> 4132</span>  <span class="keywordtype">char</span> *p = (<span class="keywordtype">char</span> *) stbi__malloc(initial_size);</div> -<div class="line"><a name="l04133"></a><span class="lineno"> 4133</span>  <span class="keywordflow">if</span> (p == NULL) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l04134"></a><span class="lineno"> 4134</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer;</div> -<div class="line"><a name="l04135"></a><span class="lineno"> 4135</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer + len;</div> -<div class="line"><a name="l04136"></a><span class="lineno"> 4136</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, p, initial_size, 1, 1)) {</div> -<div class="line"><a name="l04137"></a><span class="lineno"> 4137</span>  <span class="keywordflow">if</span> (outlen) *outlen = (int) (a.zout - a.zout_start);</div> -<div class="line"><a name="l04138"></a><span class="lineno"> 4138</span>  <span class="keywordflow">return</span> a.zout_start;</div> -<div class="line"><a name="l04139"></a><span class="lineno"> 4139</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04140"></a><span class="lineno"> 4140</span>  STBI_FREE(a.zout_start);</div> -<div class="line"><a name="l04141"></a><span class="lineno"> 4141</span>  <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l04142"></a><span class="lineno"> 4142</span>  }</div> -<div class="line"><a name="l04143"></a><span class="lineno"> 4143</span> }</div> -<div class="line"><a name="l04144"></a><span class="lineno"> 4144</span> </div> -<div class="line"><a name="l04145"></a><span class="lineno"> 4145</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a4919b67b12e0e3acc5301f185ca77e2e">stbi_zlib_decode_malloc</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *outlen)</div> -<div class="line"><a name="l04146"></a><span class="lineno"> 4146</span> {</div> -<div class="line"><a name="l04147"></a><span class="lineno"> 4147</span>  <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a>(buffer, len, 16384, outlen);</div> -<div class="line"><a name="l04148"></a><span class="lineno"> 4148</span> }</div> -<div class="line"><a name="l04149"></a><span class="lineno"> 4149</span> </div> -<div class="line"><a name="l04150"></a><span class="lineno"> 4150</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a038b0e741859a482b8b9d60167e54d27">stbi_zlib_decode_malloc_guesssize_headerflag</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> initial_size, <span class="keywordtype">int</span> *outlen, <span class="keywordtype">int</span> parse_header)</div> -<div class="line"><a name="l04151"></a><span class="lineno"> 4151</span> {</div> -<div class="line"><a name="l04152"></a><span class="lineno"> 4152</span>  stbi__zbuf a;</div> -<div class="line"><a name="l04153"></a><span class="lineno"> 4153</span>  <span class="keywordtype">char</span> *p = (<span class="keywordtype">char</span> *) stbi__malloc(initial_size);</div> -<div class="line"><a name="l04154"></a><span class="lineno"> 4154</span>  <span class="keywordflow">if</span> (p == NULL) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l04155"></a><span class="lineno"> 4155</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer;</div> -<div class="line"><a name="l04156"></a><span class="lineno"> 4156</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer + len;</div> -<div class="line"><a name="l04157"></a><span class="lineno"> 4157</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) {</div> -<div class="line"><a name="l04158"></a><span class="lineno"> 4158</span>  <span class="keywordflow">if</span> (outlen) *outlen = (int) (a.zout - a.zout_start);</div> -<div class="line"><a name="l04159"></a><span class="lineno"> 4159</span>  <span class="keywordflow">return</span> a.zout_start;</div> -<div class="line"><a name="l04160"></a><span class="lineno"> 4160</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04161"></a><span class="lineno"> 4161</span>  STBI_FREE(a.zout_start);</div> -<div class="line"><a name="l04162"></a><span class="lineno"> 4162</span>  <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l04163"></a><span class="lineno"> 4163</span>  }</div> -<div class="line"><a name="l04164"></a><span class="lineno"> 4164</span> }</div> -<div class="line"><a name="l04165"></a><span class="lineno"> 4165</span> </div> -<div class="line"><a name="l04166"></a><span class="lineno"> 4166</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae8447830c49bc17f8491e12c1f0ded48">stbi_zlib_decode_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen, <span class="keywordtype">char</span> <span class="keyword">const</span> *ibuffer, <span class="keywordtype">int</span> ilen)</div> -<div class="line"><a name="l04167"></a><span class="lineno"> 4167</span> {</div> -<div class="line"><a name="l04168"></a><span class="lineno"> 4168</span>  stbi__zbuf a;</div> -<div class="line"><a name="l04169"></a><span class="lineno"> 4169</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) ibuffer;</div> -<div class="line"><a name="l04170"></a><span class="lineno"> 4170</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) ibuffer + ilen;</div> -<div class="line"><a name="l04171"></a><span class="lineno"> 4171</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, obuffer, olen, 0, 1))</div> -<div class="line"><a name="l04172"></a><span class="lineno"> 4172</span>  <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) (a.zout - a.zout_start);</div> -<div class="line"><a name="l04173"></a><span class="lineno"> 4173</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l04174"></a><span class="lineno"> 4174</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l04175"></a><span class="lineno"> 4175</span> }</div> -<div class="line"><a name="l04176"></a><span class="lineno"> 4176</span> </div> -<div class="line"><a name="l04177"></a><span class="lineno"> 4177</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a7fbd65c83495f13f22469fe493775739">stbi_zlib_decode_noheader_malloc</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *outlen)</div> -<div class="line"><a name="l04178"></a><span class="lineno"> 4178</span> {</div> -<div class="line"><a name="l04179"></a><span class="lineno"> 4179</span>  stbi__zbuf a;</div> -<div class="line"><a name="l04180"></a><span class="lineno"> 4180</span>  <span class="keywordtype">char</span> *p = (<span class="keywordtype">char</span> *) stbi__malloc(16384);</div> -<div class="line"><a name="l04181"></a><span class="lineno"> 4181</span>  <span class="keywordflow">if</span> (p == NULL) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l04182"></a><span class="lineno"> 4182</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer;</div> -<div class="line"><a name="l04183"></a><span class="lineno"> 4183</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) buffer+len;</div> -<div class="line"><a name="l04184"></a><span class="lineno"> 4184</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, p, 16384, 1, 0)) {</div> -<div class="line"><a name="l04185"></a><span class="lineno"> 4185</span>  <span class="keywordflow">if</span> (outlen) *outlen = (int) (a.zout - a.zout_start);</div> -<div class="line"><a name="l04186"></a><span class="lineno"> 4186</span>  <span class="keywordflow">return</span> a.zout_start;</div> -<div class="line"><a name="l04187"></a><span class="lineno"> 4187</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04188"></a><span class="lineno"> 4188</span>  STBI_FREE(a.zout_start);</div> -<div class="line"><a name="l04189"></a><span class="lineno"> 4189</span>  <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l04190"></a><span class="lineno"> 4190</span>  }</div> -<div class="line"><a name="l04191"></a><span class="lineno"> 4191</span> }</div> -<div class="line"><a name="l04192"></a><span class="lineno"> 4192</span> </div> -<div class="line"><a name="l04193"></a><span class="lineno"> 4193</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a0d12efc011adfff7521f3b924feb0b0e">stbi_zlib_decode_noheader_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen, <span class="keyword">const</span> <span class="keywordtype">char</span> *ibuffer, <span class="keywordtype">int</span> ilen)</div> -<div class="line"><a name="l04194"></a><span class="lineno"> 4194</span> {</div> -<div class="line"><a name="l04195"></a><span class="lineno"> 4195</span>  stbi__zbuf a;</div> -<div class="line"><a name="l04196"></a><span class="lineno"> 4196</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) ibuffer;</div> -<div class="line"><a name="l04197"></a><span class="lineno"> 4197</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) ibuffer + ilen;</div> -<div class="line"><a name="l04198"></a><span class="lineno"> 4198</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, obuffer, olen, 0, 0))</div> -<div class="line"><a name="l04199"></a><span class="lineno"> 4199</span>  <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) (a.zout - a.zout_start);</div> -<div class="line"><a name="l04200"></a><span class="lineno"> 4200</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l04201"></a><span class="lineno"> 4201</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l04202"></a><span class="lineno"> 4202</span> }</div> -<div class="line"><a name="l04203"></a><span class="lineno"> 4203</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l04204"></a><span class="lineno"> 4204</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l04205"></a><span class="lineno"> 4205</span> <span class="comment">// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18</span></div> -<div class="line"><a name="l04206"></a><span class="lineno"> 4206</span> <span class="comment">// simple implementation</span></div> -<div class="line"><a name="l04207"></a><span class="lineno"> 4207</span> <span class="comment">// - only 8-bit samples</span></div> -<div class="line"><a name="l04208"></a><span class="lineno"> 4208</span> <span class="comment">// - no CRC checking</span></div> -<div class="line"><a name="l04209"></a><span class="lineno"> 4209</span> <span class="comment">// - allocates lots of intermediate memory</span></div> -<div class="line"><a name="l04210"></a><span class="lineno"> 4210</span> <span class="comment">// - avoids problem of streaming data between subsystems</span></div> -<div class="line"><a name="l04211"></a><span class="lineno"> 4211</span> <span class="comment">// - avoids explicit window management</span></div> -<div class="line"><a name="l04212"></a><span class="lineno"> 4212</span> <span class="comment">// performance</span></div> -<div class="line"><a name="l04213"></a><span class="lineno"> 4213</span> <span class="comment">// - uses stb_zlib, a PD zlib implementation with fast huffman decoding</span></div> -<div class="line"><a name="l04214"></a><span class="lineno"> 4214</span> </div> -<div class="line"><a name="l04215"></a><span class="lineno"> 4215</span> <span class="preprocessor">#ifndef STBI_NO_PNG</span></div> -<div class="line"><a name="l04216"></a><span class="lineno"> 4216</span> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keyword">struct</span></div> +<div class="line"><a name="l03979"></a><span class="lineno"> 3979</span> <span class="preprocessor">#ifdef STBI_SSE2</span></div> +<div class="line"><a name="l03980"></a><span class="lineno"> 3980</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__sse2_available()) {</div> +<div class="line"><a name="l03981"></a><span class="lineno"> 3981</span>  j->idct_block_kernel = stbi__idct_simd;</div> +<div class="line"><a name="l03982"></a><span class="lineno"> 3982</span>  j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;</div> +<div class="line"><a name="l03983"></a><span class="lineno"> 3983</span>  j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;</div> +<div class="line"><a name="l03984"></a><span class="lineno"> 3984</span>  }</div> +<div class="line"><a name="l03985"></a><span class="lineno"> 3985</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03986"></a><span class="lineno"> 3986</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l03987"></a><span class="lineno"> 3987</span> <span class="preprocessor">#ifdef STBI_NEON</span></div> +<div class="line"><a name="l03988"></a><span class="lineno"> 3988</span> <span class="preprocessor"></span> j->idct_block_kernel = stbi__idct_simd;</div> +<div class="line"><a name="l03989"></a><span class="lineno"> 3989</span>  j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd;</div> +<div class="line"><a name="l03990"></a><span class="lineno"> 3990</span>  j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd;</div> +<div class="line"><a name="l03991"></a><span class="lineno"> 3991</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l03992"></a><span class="lineno"> 3992</span> <span class="preprocessor"></span>}</div> +<div class="line"><a name="l03993"></a><span class="lineno"> 3993</span> </div> +<div class="line"><a name="l03994"></a><span class="lineno"> 3994</span> <span class="comment">// clean up the temporary component buffers</span></div> +<div class="line"><a name="l03995"></a><span class="lineno"> 3995</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__cleanup_jpeg(stbi__jpeg *j)</div> +<div class="line"><a name="l03996"></a><span class="lineno"> 3996</span> {</div> +<div class="line"><a name="l03997"></a><span class="lineno"> 3997</span>  stbi__free_jpeg_components(j, j->s->img_n, 0);</div> +<div class="line"><a name="l03998"></a><span class="lineno"> 3998</span> }</div> +<div class="line"><a name="l03999"></a><span class="lineno"> 3999</span> </div> +<div class="line"><a name="l04000"></a><span class="lineno"> 4000</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l04001"></a><span class="lineno"> 4001</span>  resample_row_func resample;</div> +<div class="line"><a name="l04002"></a><span class="lineno"> 4002</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *line0, *line1;</div> +<div class="line"><a name="l04003"></a><span class="lineno"> 4003</span>  <span class="keywordtype">int</span> hs, vs; <span class="comment">// expansion factor in each axis</span></div> +<div class="line"><a name="l04004"></a><span class="lineno"> 4004</span>  <span class="keywordtype">int</span> w_lores; <span class="comment">// horizontal pixels pre-expansion</span></div> +<div class="line"><a name="l04005"></a><span class="lineno"> 4005</span>  <span class="keywordtype">int</span> ystep; <span class="comment">// how far through vertical expansion we are</span></div> +<div class="line"><a name="l04006"></a><span class="lineno"> 4006</span>  <span class="keywordtype">int</span> ypos; <span class="comment">// which pre-expansion row we're on</span></div> +<div class="line"><a name="l04007"></a><span class="lineno"> 4007</span> } stbi__resample;</div> +<div class="line"><a name="l04008"></a><span class="lineno"> 4008</span> </div> +<div class="line"><a name="l04009"></a><span class="lineno"> 4009</span> <span class="comment">// fast 0..255 * 0..255 => 0..255 rounded multiplication</span></div> +<div class="line"><a name="l04010"></a><span class="lineno"> 4010</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__blinn_8x8(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> x, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> y)</div> +<div class="line"><a name="l04011"></a><span class="lineno"> 4011</span> {</div> +<div class="line"><a name="l04012"></a><span class="lineno"> 4012</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> t = x * y + 128;</div> +<div class="line"><a name="l04013"></a><span class="lineno"> 4013</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((t + (t >> 8)) >> 8);</div> +<div class="line"><a name="l04014"></a><span class="lineno"> 4014</span> }</div> +<div class="line"><a name="l04015"></a><span class="lineno"> 4015</span> </div> +<div class="line"><a name="l04016"></a><span class="lineno"> 4016</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *load_jpeg_image(stbi__jpeg *z, <span class="keywordtype">int</span> *out_x, <span class="keywordtype">int</span> *out_y,</div> +<div class="line"><a name="l04017"></a><span class="lineno"> 4017</span>  <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l04018"></a><span class="lineno"> 4018</span> {</div> +<div class="line"><a name="l04019"></a><span class="lineno"> 4019</span>  <span class="keywordtype">int</span> n, decode_n, is_rgb;</div> +<div class="line"><a name="l04020"></a><span class="lineno"> 4020</span>  z->s->img_n = 0; <span class="comment">// make stbi__cleanup_jpeg safe</span></div> +<div class="line"><a name="l04021"></a><span class="lineno"> 4021</span> </div> +<div class="line"><a name="l04022"></a><span class="lineno"> 4022</span>  <span class="comment">// validate req_comp</span></div> +<div class="line"><a name="l04023"></a><span class="lineno"> 4023</span>  <span class="keywordflow">if</span> (req_comp < 0 || req_comp > 4)</div> +<div class="line"><a name="l04024"></a><span class="lineno"> 4024</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad req_comp"</span>, <span class="stringliteral">"Internal error"</span>);</div> +<div class="line"><a name="l04025"></a><span class="lineno"> 4025</span> </div> +<div class="line"><a name="l04026"></a><span class="lineno"> 4026</span>  <span class="comment">// load a jpeg image from whichever source, but leave in YCbCr format</span></div> +<div class="line"><a name="l04027"></a><span class="lineno"> 4027</span>  <span class="keywordflow">if</span> (!stbi__decode_jpeg_image(z)) {</div> +<div class="line"><a name="l04028"></a><span class="lineno"> 4028</span>  stbi__cleanup_jpeg(z);</div> +<div class="line"><a name="l04029"></a><span class="lineno"> 4029</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04030"></a><span class="lineno"> 4030</span>  }</div> +<div class="line"><a name="l04031"></a><span class="lineno"> 4031</span> </div> +<div class="line"><a name="l04032"></a><span class="lineno"> 4032</span>  <span class="comment">// determine actual number of components to generate</span></div> +<div class="line"><a name="l04033"></a><span class="lineno"> 4033</span>  n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1;</div> +<div class="line"><a name="l04034"></a><span class="lineno"> 4034</span> </div> +<div class="line"><a name="l04035"></a><span class="lineno"> 4035</span>  is_rgb = z->s->img_n == 3 &&</div> +<div class="line"><a name="l04036"></a><span class="lineno"> 4036</span>  (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif));</div> +<div class="line"><a name="l04037"></a><span class="lineno"> 4037</span> </div> +<div class="line"><a name="l04038"></a><span class="lineno"> 4038</span>  <span class="keywordflow">if</span> (z->s->img_n == 3 && n < 3 && !is_rgb)</div> +<div class="line"><a name="l04039"></a><span class="lineno"> 4039</span>  decode_n = 1;</div> +<div class="line"><a name="l04040"></a><span class="lineno"> 4040</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l04041"></a><span class="lineno"> 4041</span>  decode_n = z->s->img_n;</div> +<div class="line"><a name="l04042"></a><span class="lineno"> 4042</span> </div> +<div class="line"><a name="l04043"></a><span class="lineno"> 4043</span>  <span class="comment">// resample and color-convert</span></div> +<div class="line"><a name="l04044"></a><span class="lineno"> 4044</span>  {</div> +<div class="line"><a name="l04045"></a><span class="lineno"> 4045</span>  <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l04046"></a><span class="lineno"> 4046</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l04047"></a><span class="lineno"> 4047</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *output;</div> +<div class="line"><a name="l04048"></a><span class="lineno"> 4048</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *coutput[4];</div> +<div class="line"><a name="l04049"></a><span class="lineno"> 4049</span> </div> +<div class="line"><a name="l04050"></a><span class="lineno"> 4050</span>  stbi__resample res_comp[4];</div> +<div class="line"><a name="l04051"></a><span class="lineno"> 4051</span> </div> +<div class="line"><a name="l04052"></a><span class="lineno"> 4052</span>  <span class="keywordflow">for</span> (k = 0; k < decode_n; ++k) {</div> +<div class="line"><a name="l04053"></a><span class="lineno"> 4053</span>  stbi__resample *r = &res_comp[k];</div> +<div class="line"><a name="l04054"></a><span class="lineno"> 4054</span> </div> +<div class="line"><a name="l04055"></a><span class="lineno"> 4055</span>  <span class="comment">// allocate line buffer big enough for upsampling off the edges</span></div> +<div class="line"><a name="l04056"></a><span class="lineno"> 4056</span>  <span class="comment">// with upsample factor of 4</span></div> +<div class="line"><a name="l04057"></a><span class="lineno"> 4057</span>  z->img_comp[k].linebuf = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc(z->s->img_x + 3);</div> +<div class="line"><a name="l04058"></a><span class="lineno"> 4058</span>  <span class="keywordflow">if</span> (!z->img_comp[k].linebuf) {</div> +<div class="line"><a name="l04059"></a><span class="lineno"> 4059</span>  stbi__cleanup_jpeg(z);</div> +<div class="line"><a name="l04060"></a><span class="lineno"> 4060</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l04061"></a><span class="lineno"> 4061</span>  }</div> +<div class="line"><a name="l04062"></a><span class="lineno"> 4062</span> </div> +<div class="line"><a name="l04063"></a><span class="lineno"> 4063</span>  r->hs = z->img_h_max / z->img_comp[k].h;</div> +<div class="line"><a name="l04064"></a><span class="lineno"> 4064</span>  r->vs = z->img_v_max / z->img_comp[k].v;</div> +<div class="line"><a name="l04065"></a><span class="lineno"> 4065</span>  r->ystep = r->vs >> 1;</div> +<div class="line"><a name="l04066"></a><span class="lineno"> 4066</span>  r->w_lores = (z->s->img_x + r->hs - 1) / r->hs;</div> +<div class="line"><a name="l04067"></a><span class="lineno"> 4067</span>  r->ypos = 0;</div> +<div class="line"><a name="l04068"></a><span class="lineno"> 4068</span>  r->line0 = r->line1 = z->img_comp[k].data;</div> +<div class="line"><a name="l04069"></a><span class="lineno"> 4069</span> </div> +<div class="line"><a name="l04070"></a><span class="lineno"> 4070</span>  if (r->hs == 1 && r->vs == 1)</div> +<div class="line"><a name="l04071"></a><span class="lineno"> 4071</span>  r->resample = resample_row_1;</div> +<div class="line"><a name="l04072"></a><span class="lineno"> 4072</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->hs == 1 && r->vs == 2)</div> +<div class="line"><a name="l04073"></a><span class="lineno"> 4073</span>  r->resample = stbi__resample_row_v_2;</div> +<div class="line"><a name="l04074"></a><span class="lineno"> 4074</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->hs == 2 && r->vs == 1)</div> +<div class="line"><a name="l04075"></a><span class="lineno"> 4075</span>  r->resample = stbi__resample_row_h_2;</div> +<div class="line"><a name="l04076"></a><span class="lineno"> 4076</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (r->hs == 2 && r->vs == 2)</div> +<div class="line"><a name="l04077"></a><span class="lineno"> 4077</span>  r->resample = z->resample_row_hv_2_kernel;</div> +<div class="line"><a name="l04078"></a><span class="lineno"> 4078</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l04079"></a><span class="lineno"> 4079</span>  r->resample = stbi__resample_row_generic;</div> +<div class="line"><a name="l04080"></a><span class="lineno"> 4080</span>  }</div> +<div class="line"><a name="l04081"></a><span class="lineno"> 4081</span> </div> +<div class="line"><a name="l04082"></a><span class="lineno"> 4082</span>  <span class="comment">// can't error after this so, this is safe</span></div> +<div class="line"><a name="l04083"></a><span class="lineno"> 4083</span>  output = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1);</div> +<div class="line"><a name="l04084"></a><span class="lineno"> 4084</span>  <span class="keywordflow">if</span> (!output) {</div> +<div class="line"><a name="l04085"></a><span class="lineno"> 4085</span>  stbi__cleanup_jpeg(z);</div> +<div class="line"><a name="l04086"></a><span class="lineno"> 4086</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l04087"></a><span class="lineno"> 4087</span>  }</div> +<div class="line"><a name="l04088"></a><span class="lineno"> 4088</span> </div> +<div class="line"><a name="l04089"></a><span class="lineno"> 4089</span>  <span class="comment">// now go ahead and resample</span></div> +<div class="line"><a name="l04090"></a><span class="lineno"> 4090</span>  <span class="keywordflow">for</span> (j = 0; j < z->s->img_y; ++j) {</div> +<div class="line"><a name="l04091"></a><span class="lineno"> 4091</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out = output + n * z->s->img_x * j;</div> +<div class="line"><a name="l04092"></a><span class="lineno"> 4092</span>  <span class="keywordflow">for</span> (k = 0; k < decode_n; ++k) {</div> +<div class="line"><a name="l04093"></a><span class="lineno"> 4093</span>  stbi__resample *r = &res_comp[k];</div> +<div class="line"><a name="l04094"></a><span class="lineno"> 4094</span>  <span class="keywordtype">int</span> y_bot = r->ystep >= (r->vs >> 1);</div> +<div class="line"><a name="l04095"></a><span class="lineno"> 4095</span>  coutput[k] = r->resample(</div> +<div class="line"><a name="l04096"></a><span class="lineno"> 4096</span>  z->img_comp[k].linebuf, y_bot ? r->line1 : r->line0,</div> +<div class="line"><a name="l04097"></a><span class="lineno"> 4097</span>  y_bot ? r->line0 : r->line1, r->w_lores, r->hs);</div> +<div class="line"><a name="l04098"></a><span class="lineno"> 4098</span>  <span class="keywordflow">if</span> (++r->ystep >= r->vs) {</div> +<div class="line"><a name="l04099"></a><span class="lineno"> 4099</span>  r->ystep = 0;</div> +<div class="line"><a name="l04100"></a><span class="lineno"> 4100</span>  r->line0 = r->line1;</div> +<div class="line"><a name="l04101"></a><span class="lineno"> 4101</span>  <span class="keywordflow">if</span> (++r->ypos < z->img_comp[k].y)</div> +<div class="line"><a name="l04102"></a><span class="lineno"> 4102</span>  r->line1 += z->img_comp[k].w2;</div> +<div class="line"><a name="l04103"></a><span class="lineno"> 4103</span>  }</div> +<div class="line"><a name="l04104"></a><span class="lineno"> 4104</span>  }</div> +<div class="line"><a name="l04105"></a><span class="lineno"> 4105</span>  <span class="keywordflow">if</span> (n >= 3) {</div> +<div class="line"><a name="l04106"></a><span class="lineno"> 4106</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y = coutput[0];</div> +<div class="line"><a name="l04107"></a><span class="lineno"> 4107</span>  <span class="keywordflow">if</span> (z->s->img_n == 3) {</div> +<div class="line"><a name="l04108"></a><span class="lineno"> 4108</span>  <span class="keywordflow">if</span> (is_rgb) {</div> +<div class="line"><a name="l04109"></a><span class="lineno"> 4109</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i) {</div> +<div class="line"><a name="l04110"></a><span class="lineno"> 4110</span>  out[0] = y[i];</div> +<div class="line"><a name="l04111"></a><span class="lineno"> 4111</span>  out[1] = coutput[1][i];</div> +<div class="line"><a name="l04112"></a><span class="lineno"> 4112</span>  out[2] = coutput[2][i];</div> +<div class="line"><a name="l04113"></a><span class="lineno"> 4113</span>  out[3] = 255;</div> +<div class="line"><a name="l04114"></a><span class="lineno"> 4114</span>  out += n;</div> +<div class="line"><a name="l04115"></a><span class="lineno"> 4115</span>  }</div> +<div class="line"><a name="l04116"></a><span class="lineno"> 4116</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04117"></a><span class="lineno"> 4117</span>  z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2],</div> +<div class="line"><a name="l04118"></a><span class="lineno"> 4118</span>  z->s->img_x, n);</div> +<div class="line"><a name="l04119"></a><span class="lineno"> 4119</span>  }</div> +<div class="line"><a name="l04120"></a><span class="lineno"> 4120</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->s->img_n == 4) {</div> +<div class="line"><a name="l04121"></a><span class="lineno"> 4121</span>  <span class="keywordflow">if</span> (z->app14_color_transform == 0) { <span class="comment">// CMYK</span></div> +<div class="line"><a name="l04122"></a><span class="lineno"> 4122</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i) {</div> +<div class="line"><a name="l04123"></a><span class="lineno"> 4123</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> m = coutput[3][i];</div> +<div class="line"><a name="l04124"></a><span class="lineno"> 4124</span>  out[0] = stbi__blinn_8x8(coutput[0][i], m);</div> +<div class="line"><a name="l04125"></a><span class="lineno"> 4125</span>  out[1] = stbi__blinn_8x8(coutput[1][i], m);</div> +<div class="line"><a name="l04126"></a><span class="lineno"> 4126</span>  out[2] = stbi__blinn_8x8(coutput[2][i], m);</div> +<div class="line"><a name="l04127"></a><span class="lineno"> 4127</span>  out[3] = 255;</div> +<div class="line"><a name="l04128"></a><span class="lineno"> 4128</span>  out += n;</div> +<div class="line"><a name="l04129"></a><span class="lineno"> 4129</span>  }</div> +<div class="line"><a name="l04130"></a><span class="lineno"> 4130</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->app14_color_transform == 2) { <span class="comment">// YCCK</span></div> +<div class="line"><a name="l04131"></a><span class="lineno"> 4131</span>  z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2],</div> +<div class="line"><a name="l04132"></a><span class="lineno"> 4132</span>  z->s->img_x, n);</div> +<div class="line"><a name="l04133"></a><span class="lineno"> 4133</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i) {</div> +<div class="line"><a name="l04134"></a><span class="lineno"> 4134</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> m = coutput[3][i];</div> +<div class="line"><a name="l04135"></a><span class="lineno"> 4135</span>  out[0] = stbi__blinn_8x8(255 - out[0], m);</div> +<div class="line"><a name="l04136"></a><span class="lineno"> 4136</span>  out[1] = stbi__blinn_8x8(255 - out[1], m);</div> +<div class="line"><a name="l04137"></a><span class="lineno"> 4137</span>  out[2] = stbi__blinn_8x8(255 - out[2], m);</div> +<div class="line"><a name="l04138"></a><span class="lineno"> 4138</span>  out += n;</div> +<div class="line"><a name="l04139"></a><span class="lineno"> 4139</span>  }</div> +<div class="line"><a name="l04140"></a><span class="lineno"> 4140</span>  } <span class="keywordflow">else</span> { <span class="comment">// YCbCr + alpha? Ignore the fourth channel for</span></div> +<div class="line"><a name="l04141"></a><span class="lineno"> 4141</span>  <span class="comment">// now</span></div> +<div class="line"><a name="l04142"></a><span class="lineno"> 4142</span>  z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2],</div> +<div class="line"><a name="l04143"></a><span class="lineno"> 4143</span>  z->s->img_x, n);</div> +<div class="line"><a name="l04144"></a><span class="lineno"> 4144</span>  }</div> +<div class="line"><a name="l04145"></a><span class="lineno"> 4145</span>  } <span class="keywordflow">else</span></div> +<div class="line"><a name="l04146"></a><span class="lineno"> 4146</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i) {</div> +<div class="line"><a name="l04147"></a><span class="lineno"> 4147</span>  out[0] = out[1] = out[2] = y[i];</div> +<div class="line"><a name="l04148"></a><span class="lineno"> 4148</span>  out[3] = 255; <span class="comment">// not used if n==3</span></div> +<div class="line"><a name="l04149"></a><span class="lineno"> 4149</span>  out += n;</div> +<div class="line"><a name="l04150"></a><span class="lineno"> 4150</span>  }</div> +<div class="line"><a name="l04151"></a><span class="lineno"> 4151</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04152"></a><span class="lineno"> 4152</span>  <span class="keywordflow">if</span> (is_rgb) {</div> +<div class="line"><a name="l04153"></a><span class="lineno"> 4153</span>  <span class="keywordflow">if</span> (n == 1)</div> +<div class="line"><a name="l04154"></a><span class="lineno"> 4154</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i)</div> +<div class="line"><a name="l04155"></a><span class="lineno"> 4155</span>  *out++ = stbi__compute_y(</div> +<div class="line"><a name="l04156"></a><span class="lineno"> 4156</span>  coutput[0][i], coutput[1][i], coutput[2][i]);</div> +<div class="line"><a name="l04157"></a><span class="lineno"> 4157</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04158"></a><span class="lineno"> 4158</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i, out += 2) {</div> +<div class="line"><a name="l04159"></a><span class="lineno"> 4159</span>  out[0] = stbi__compute_y(</div> +<div class="line"><a name="l04160"></a><span class="lineno"> 4160</span>  coutput[0][i], coutput[1][i], coutput[2][i]);</div> +<div class="line"><a name="l04161"></a><span class="lineno"> 4161</span>  out[1] = 255;</div> +<div class="line"><a name="l04162"></a><span class="lineno"> 4162</span>  }</div> +<div class="line"><a name="l04163"></a><span class="lineno"> 4163</span>  }</div> +<div class="line"><a name="l04164"></a><span class="lineno"> 4164</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->s->img_n == 4 && z->app14_color_transform == 0) {</div> +<div class="line"><a name="l04165"></a><span class="lineno"> 4165</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i) {</div> +<div class="line"><a name="l04166"></a><span class="lineno"> 4166</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> m = coutput[3][i];</div> +<div class="line"><a name="l04167"></a><span class="lineno"> 4167</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> r = stbi__blinn_8x8(coutput[0][i], m);</div> +<div class="line"><a name="l04168"></a><span class="lineno"> 4168</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> g = stbi__blinn_8x8(coutput[1][i], m);</div> +<div class="line"><a name="l04169"></a><span class="lineno"> 4169</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> b = stbi__blinn_8x8(coutput[2][i], m);</div> +<div class="line"><a name="l04170"></a><span class="lineno"> 4170</span>  out[0] = stbi__compute_y(r, g, b);</div> +<div class="line"><a name="l04171"></a><span class="lineno"> 4171</span>  out[1] = 255;</div> +<div class="line"><a name="l04172"></a><span class="lineno"> 4172</span>  out += n;</div> +<div class="line"><a name="l04173"></a><span class="lineno"> 4173</span>  }</div> +<div class="line"><a name="l04174"></a><span class="lineno"> 4174</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (z->s->img_n == 4 && z->app14_color_transform == 2) {</div> +<div class="line"><a name="l04175"></a><span class="lineno"> 4175</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i) {</div> +<div class="line"><a name="l04176"></a><span class="lineno"> 4176</span>  out[0] =</div> +<div class="line"><a name="l04177"></a><span class="lineno"> 4177</span>  stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]);</div> +<div class="line"><a name="l04178"></a><span class="lineno"> 4178</span>  out[1] = 255;</div> +<div class="line"><a name="l04179"></a><span class="lineno"> 4179</span>  out += n;</div> +<div class="line"><a name="l04180"></a><span class="lineno"> 4180</span>  }</div> +<div class="line"><a name="l04181"></a><span class="lineno"> 4181</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04182"></a><span class="lineno"> 4182</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *y = coutput[0];</div> +<div class="line"><a name="l04183"></a><span class="lineno"> 4183</span>  <span class="keywordflow">if</span> (n == 1)</div> +<div class="line"><a name="l04184"></a><span class="lineno"> 4184</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i)</div> +<div class="line"><a name="l04185"></a><span class="lineno"> 4185</span>  out[i] = y[i];</div> +<div class="line"><a name="l04186"></a><span class="lineno"> 4186</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l04187"></a><span class="lineno"> 4187</span>  <span class="keywordflow">for</span> (i = 0; i < z->s->img_x; ++i)</div> +<div class="line"><a name="l04188"></a><span class="lineno"> 4188</span>  *out++ = y[i], *out++ = 255;</div> +<div class="line"><a name="l04189"></a><span class="lineno"> 4189</span>  }</div> +<div class="line"><a name="l04190"></a><span class="lineno"> 4190</span>  }</div> +<div class="line"><a name="l04191"></a><span class="lineno"> 4191</span>  }</div> +<div class="line"><a name="l04192"></a><span class="lineno"> 4192</span>  stbi__cleanup_jpeg(z);</div> +<div class="line"><a name="l04193"></a><span class="lineno"> 4193</span>  *out_x = z->s->img_x;</div> +<div class="line"><a name="l04194"></a><span class="lineno"> 4194</span>  *out_y = z->s->img_y;</div> +<div class="line"><a name="l04195"></a><span class="lineno"> 4195</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l04196"></a><span class="lineno"> 4196</span>  *comp = z->s->img_n >= 3</div> +<div class="line"><a name="l04197"></a><span class="lineno"> 4197</span>  ? 3</div> +<div class="line"><a name="l04198"></a><span class="lineno"> 4198</span>  : 1; <span class="comment">// report original components, not output</span></div> +<div class="line"><a name="l04199"></a><span class="lineno"> 4199</span>  <span class="keywordflow">return</span> output;</div> +<div class="line"><a name="l04200"></a><span class="lineno"> 4200</span>  }</div> +<div class="line"><a name="l04201"></a><span class="lineno"> 4201</span> }</div> +<div class="line"><a name="l04202"></a><span class="lineno"> 4202</span> </div> +<div class="line"><a name="l04203"></a><span class="lineno"> 4203</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__jpeg_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l04204"></a><span class="lineno"> 4204</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l04205"></a><span class="lineno"> 4205</span> {</div> +<div class="line"><a name="l04206"></a><span class="lineno"> 4206</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result;</div> +<div class="line"><a name="l04207"></a><span class="lineno"> 4207</span>  stbi__jpeg *j = (stbi__jpeg *)stbi__malloc(<span class="keyword">sizeof</span>(stbi__jpeg));</div> +<div class="line"><a name="l04208"></a><span class="lineno"> 4208</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l04209"></a><span class="lineno"> 4209</span>  j->s = s;</div> +<div class="line"><a name="l04210"></a><span class="lineno"> 4210</span>  stbi__setup_jpeg(j);</div> +<div class="line"><a name="l04211"></a><span class="lineno"> 4211</span>  result = load_jpeg_image(j, x, y, comp, req_comp);</div> +<div class="line"><a name="l04212"></a><span class="lineno"> 4212</span>  STBI_FREE(j);</div> +<div class="line"><a name="l04213"></a><span class="lineno"> 4213</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l04214"></a><span class="lineno"> 4214</span> }</div> +<div class="line"><a name="l04215"></a><span class="lineno"> 4215</span> </div> +<div class="line"><a name="l04216"></a><span class="lineno"> 4216</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_test(stbi__context *s)</div> <div class="line"><a name="l04217"></a><span class="lineno"> 4217</span> {</div> -<div class="line"><a name="l04218"></a><span class="lineno"> 4218</span>  stbi__uint32 length;</div> -<div class="line"><a name="l04219"></a><span class="lineno"> 4219</span>  stbi__uint32 type;</div> -<div class="line"><a name="l04220"></a><span class="lineno"> 4220</span> } stbi__pngchunk;</div> -<div class="line"><a name="l04221"></a><span class="lineno"> 4221</span> </div> -<div class="line"><a name="l04222"></a><span class="lineno"> 4222</span> <span class="keyword">static</span> stbi__pngchunk stbi__get_chunk_header(stbi__context *s)</div> -<div class="line"><a name="l04223"></a><span class="lineno"> 4223</span> {</div> -<div class="line"><a name="l04224"></a><span class="lineno"> 4224</span>  stbi__pngchunk c;</div> -<div class="line"><a name="l04225"></a><span class="lineno"> 4225</span>  c.length = stbi__get32be(s);</div> -<div class="line"><a name="l04226"></a><span class="lineno"> 4226</span>  c.type = stbi__get32be(s);</div> -<div class="line"><a name="l04227"></a><span class="lineno"> 4227</span>  <span class="keywordflow">return</span> c;</div> -<div class="line"><a name="l04228"></a><span class="lineno"> 4228</span> }</div> -<div class="line"><a name="l04229"></a><span class="lineno"> 4229</span> </div> -<div class="line"><a name="l04230"></a><span class="lineno"> 4230</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__check_png_header(stbi__context *s)</div> -<div class="line"><a name="l04231"></a><span class="lineno"> 4231</span> {</div> -<div class="line"><a name="l04232"></a><span class="lineno"> 4232</span>  <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> png_sig[8] = { 137,80,78,71,13,10,26,10 };</div> -<div class="line"><a name="l04233"></a><span class="lineno"> 4233</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l04234"></a><span class="lineno"> 4234</span>  <span class="keywordflow">for</span> (i=0; i < 8; ++i)</div> -<div class="line"><a name="l04235"></a><span class="lineno"> 4235</span>  <span class="keywordflow">if</span> (stbi__get8(s) != png_sig[i]) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad png sig"</span>,<span class="stringliteral">"Not a PNG"</span>);</div> -<div class="line"><a name="l04236"></a><span class="lineno"> 4236</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04237"></a><span class="lineno"> 4237</span> }</div> -<div class="line"><a name="l04238"></a><span class="lineno"> 4238</span> </div> -<div class="line"><a name="l04239"></a><span class="lineno"> 4239</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l04240"></a><span class="lineno"> 4240</span> {</div> -<div class="line"><a name="l04241"></a><span class="lineno"> 4241</span>  stbi__context *s;</div> -<div class="line"><a name="l04242"></a><span class="lineno"> 4242</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *idata, *expanded, *out;</div> -<div class="line"><a name="l04243"></a><span class="lineno"> 4243</span>  <span class="keywordtype">int</span> depth;</div> -<div class="line"><a name="l04244"></a><span class="lineno"> 4244</span> } stbi__png;</div> -<div class="line"><a name="l04245"></a><span class="lineno"> 4245</span> </div> -<div class="line"><a name="l04246"></a><span class="lineno"> 4246</span> </div> -<div class="line"><a name="l04247"></a><span class="lineno"> 4247</span> <span class="keyword">enum</span> {</div> -<div class="line"><a name="l04248"></a><span class="lineno"> 4248</span>  STBI__F_none=0,</div> -<div class="line"><a name="l04249"></a><span class="lineno"> 4249</span>  STBI__F_sub=1,</div> -<div class="line"><a name="l04250"></a><span class="lineno"> 4250</span>  STBI__F_up=2,</div> -<div class="line"><a name="l04251"></a><span class="lineno"> 4251</span>  STBI__F_avg=3,</div> -<div class="line"><a name="l04252"></a><span class="lineno"> 4252</span>  STBI__F_paeth=4,</div> -<div class="line"><a name="l04253"></a><span class="lineno"> 4253</span>  <span class="comment">// synthetic filters used for first scanline to avoid needing a dummy row of 0s</span></div> -<div class="line"><a name="l04254"></a><span class="lineno"> 4254</span>  STBI__F_avg_first,</div> -<div class="line"><a name="l04255"></a><span class="lineno"> 4255</span>  STBI__F_paeth_first</div> -<div class="line"><a name="l04256"></a><span class="lineno"> 4256</span> };</div> -<div class="line"><a name="l04257"></a><span class="lineno"> 4257</span> </div> -<div class="line"><a name="l04258"></a><span class="lineno"> 4258</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> first_row_filter[5] =</div> -<div class="line"><a name="l04259"></a><span class="lineno"> 4259</span> {</div> -<div class="line"><a name="l04260"></a><span class="lineno"> 4260</span>  STBI__F_none,</div> -<div class="line"><a name="l04261"></a><span class="lineno"> 4261</span>  STBI__F_sub,</div> -<div class="line"><a name="l04262"></a><span class="lineno"> 4262</span>  STBI__F_none,</div> -<div class="line"><a name="l04263"></a><span class="lineno"> 4263</span>  STBI__F_avg_first,</div> -<div class="line"><a name="l04264"></a><span class="lineno"> 4264</span>  STBI__F_paeth_first</div> -<div class="line"><a name="l04265"></a><span class="lineno"> 4265</span> };</div> -<div class="line"><a name="l04266"></a><span class="lineno"> 4266</span> </div> -<div class="line"><a name="l04267"></a><span class="lineno"> 4267</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__paeth(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c)</div> -<div class="line"><a name="l04268"></a><span class="lineno"> 4268</span> {</div> -<div class="line"><a name="l04269"></a><span class="lineno"> 4269</span>  <span class="keywordtype">int</span> p = a + b - c;</div> -<div class="line"><a name="l04270"></a><span class="lineno"> 4270</span>  <span class="keywordtype">int</span> pa = abs(p-a);</div> -<div class="line"><a name="l04271"></a><span class="lineno"> 4271</span>  <span class="keywordtype">int</span> pb = abs(p-b);</div> -<div class="line"><a name="l04272"></a><span class="lineno"> 4272</span>  <span class="keywordtype">int</span> pc = abs(p-c);</div> -<div class="line"><a name="l04273"></a><span class="lineno"> 4273</span>  <span class="keywordflow">if</span> (pa <= pb && pa <= pc) <span class="keywordflow">return</span> a;</div> -<div class="line"><a name="l04274"></a><span class="lineno"> 4274</span>  <span class="keywordflow">if</span> (pb <= pc) <span class="keywordflow">return</span> b;</div> -<div class="line"><a name="l04275"></a><span class="lineno"> 4275</span>  <span class="keywordflow">return</span> c;</div> -<div class="line"><a name="l04276"></a><span class="lineno"> 4276</span> }</div> -<div class="line"><a name="l04277"></a><span class="lineno"> 4277</span> </div> -<div class="line"><a name="l04278"></a><span class="lineno"> 4278</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 };</div> -<div class="line"><a name="l04279"></a><span class="lineno"> 4279</span> </div> -<div class="line"><a name="l04280"></a><span class="lineno"> 4280</span> <span class="comment">// create the png data from post-deflated data</span></div> -<div class="line"><a name="l04281"></a><span class="lineno"> 4281</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__create_png_image_raw(stbi__png *a, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *raw, stbi__uint32 raw_len, <span class="keywordtype">int</span> out_n, stbi__uint32 x, stbi__uint32 y, <span class="keywordtype">int</span> depth, <span class="keywordtype">int</span> color)</div> -<div class="line"><a name="l04282"></a><span class="lineno"> 4282</span> {</div> -<div class="line"><a name="l04283"></a><span class="lineno"> 4283</span>  <span class="keywordtype">int</span> bytes = (depth == 16? 2 : 1);</div> -<div class="line"><a name="l04284"></a><span class="lineno"> 4284</span>  stbi__context *s = a->s;</div> -<div class="line"><a name="l04285"></a><span class="lineno"> 4285</span>  stbi__uint32 i,j,stride = x*out_n*bytes;</div> -<div class="line"><a name="l04286"></a><span class="lineno"> 4286</span>  stbi__uint32 img_len, img_width_bytes;</div> -<div class="line"><a name="l04287"></a><span class="lineno"> 4287</span>  <span class="keywordtype">int</span> k;</div> -<div class="line"><a name="l04288"></a><span class="lineno"> 4288</span>  <span class="keywordtype">int</span> img_n = s->img_n; <span class="comment">// copy it into a local for later</span></div> -<div class="line"><a name="l04289"></a><span class="lineno"> 4289</span> </div> -<div class="line"><a name="l04290"></a><span class="lineno"> 4290</span>  <span class="keywordtype">int</span> output_bytes = out_n*bytes;</div> -<div class="line"><a name="l04291"></a><span class="lineno"> 4291</span>  <span class="keywordtype">int</span> filter_bytes = img_n*bytes;</div> -<div class="line"><a name="l04292"></a><span class="lineno"> 4292</span>  <span class="keywordtype">int</span> width = x;</div> -<div class="line"><a name="l04293"></a><span class="lineno"> 4293</span> </div> -<div class="line"><a name="l04294"></a><span class="lineno"> 4294</span>  STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1);</div> -<div class="line"><a name="l04295"></a><span class="lineno"> 4295</span>  a->out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(x, y, output_bytes, 0); <span class="comment">// extra bytes to write off the end into</span></div> -<div class="line"><a name="l04296"></a><span class="lineno"> 4296</span>  <span class="keywordflow">if</span> (!a->out) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l04297"></a><span class="lineno"> 4297</span> </div> -<div class="line"><a name="l04298"></a><span class="lineno"> 4298</span>  img_width_bytes = (((img_n * x * depth) + 7) >> 3);</div> -<div class="line"><a name="l04299"></a><span class="lineno"> 4299</span>  img_len = (img_width_bytes + 1) * y;</div> -<div class="line"><a name="l04300"></a><span class="lineno"> 4300</span>  <span class="comment">// we used to check for exact match between raw_len and img_len on non-interlaced PNGs,</span></div> -<div class="line"><a name="l04301"></a><span class="lineno"> 4301</span>  <span class="comment">// but issue #276 reported a PNG in the wild that had extra data at the end (all zeros),</span></div> -<div class="line"><a name="l04302"></a><span class="lineno"> 4302</span>  <span class="comment">// so just check for raw_len < img_len always.</span></div> -<div class="line"><a name="l04303"></a><span class="lineno"> 4303</span>  <span class="keywordflow">if</span> (raw_len < img_len) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not enough pixels"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04304"></a><span class="lineno"> 4304</span> </div> -<div class="line"><a name="l04305"></a><span class="lineno"> 4305</span>  <span class="keywordflow">for</span> (j=0; j < y; ++j) {</div> -<div class="line"><a name="l04306"></a><span class="lineno"> 4306</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *cur = a->out + stride*j;</div> -<div class="line"><a name="l04307"></a><span class="lineno"> 4307</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *prior;</div> -<div class="line"><a name="l04308"></a><span class="lineno"> 4308</span>  <span class="keywordtype">int</span> filter = *raw++;</div> -<div class="line"><a name="l04309"></a><span class="lineno"> 4309</span> </div> -<div class="line"><a name="l04310"></a><span class="lineno"> 4310</span>  <span class="keywordflow">if</span> (filter > 4)</div> -<div class="line"><a name="l04311"></a><span class="lineno"> 4311</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"invalid filter"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04312"></a><span class="lineno"> 4312</span> </div> -<div class="line"><a name="l04313"></a><span class="lineno"> 4313</span>  <span class="keywordflow">if</span> (depth < 8) {</div> -<div class="line"><a name="l04314"></a><span class="lineno"> 4314</span>  STBI_ASSERT(img_width_bytes <= x);</div> -<div class="line"><a name="l04315"></a><span class="lineno"> 4315</span>  cur += x*out_n - img_width_bytes; <span class="comment">// store output to the rightmost img_len bytes, so we can decode in place</span></div> -<div class="line"><a name="l04316"></a><span class="lineno"> 4316</span>  filter_bytes = 1;</div> -<div class="line"><a name="l04317"></a><span class="lineno"> 4317</span>  width = img_width_bytes;</div> -<div class="line"><a name="l04318"></a><span class="lineno"> 4318</span>  }</div> -<div class="line"><a name="l04319"></a><span class="lineno"> 4319</span>  prior = cur - stride; <span class="comment">// bugfix: need to compute this after 'cur +=' computation above</span></div> -<div class="line"><a name="l04320"></a><span class="lineno"> 4320</span> </div> -<div class="line"><a name="l04321"></a><span class="lineno"> 4321</span>  <span class="comment">// if first row, use special filter that doesn't sample previous row</span></div> -<div class="line"><a name="l04322"></a><span class="lineno"> 4322</span>  <span class="keywordflow">if</span> (j == 0) filter = first_row_filter[filter];</div> -<div class="line"><a name="l04323"></a><span class="lineno"> 4323</span> </div> -<div class="line"><a name="l04324"></a><span class="lineno"> 4324</span>  <span class="comment">// handle first byte explicitly</span></div> -<div class="line"><a name="l04325"></a><span class="lineno"> 4325</span>  <span class="keywordflow">for</span> (k=0; k < filter_bytes; ++k) {</div> -<div class="line"><a name="l04326"></a><span class="lineno"> 4326</span>  <span class="keywordflow">switch</span> (filter) {</div> -<div class="line"><a name="l04327"></a><span class="lineno"> 4327</span>  <span class="keywordflow">case</span> STBI__F_none : cur[k] = raw[k]; <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04328"></a><span class="lineno"> 4328</span>  <span class="keywordflow">case</span> STBI__F_sub : cur[k] = raw[k]; <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04329"></a><span class="lineno"> 4329</span>  <span class="keywordflow">case</span> STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04330"></a><span class="lineno"> 4330</span>  <span class="keywordflow">case</span> STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04331"></a><span class="lineno"> 4331</span>  <span class="keywordflow">case</span> STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04332"></a><span class="lineno"> 4332</span>  <span class="keywordflow">case</span> STBI__F_avg_first : cur[k] = raw[k]; <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04333"></a><span class="lineno"> 4333</span>  <span class="keywordflow">case</span> STBI__F_paeth_first: cur[k] = raw[k]; <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04334"></a><span class="lineno"> 4334</span>  }</div> -<div class="line"><a name="l04335"></a><span class="lineno"> 4335</span>  }</div> -<div class="line"><a name="l04336"></a><span class="lineno"> 4336</span> </div> -<div class="line"><a name="l04337"></a><span class="lineno"> 4337</span>  <span class="keywordflow">if</span> (depth == 8) {</div> -<div class="line"><a name="l04338"></a><span class="lineno"> 4338</span>  <span class="keywordflow">if</span> (img_n != out_n)</div> -<div class="line"><a name="l04339"></a><span class="lineno"> 4339</span>  cur[img_n] = 255; <span class="comment">// first pixel</span></div> -<div class="line"><a name="l04340"></a><span class="lineno"> 4340</span>  raw += img_n;</div> -<div class="line"><a name="l04341"></a><span class="lineno"> 4341</span>  cur += out_n;</div> -<div class="line"><a name="l04342"></a><span class="lineno"> 4342</span>  prior += out_n;</div> -<div class="line"><a name="l04343"></a><span class="lineno"> 4343</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 16) {</div> -<div class="line"><a name="l04344"></a><span class="lineno"> 4344</span>  <span class="keywordflow">if</span> (img_n != out_n) {</div> -<div class="line"><a name="l04345"></a><span class="lineno"> 4345</span>  cur[filter_bytes] = 255; <span class="comment">// first pixel top byte</span></div> -<div class="line"><a name="l04346"></a><span class="lineno"> 4346</span>  cur[filter_bytes+1] = 255; <span class="comment">// first pixel bottom byte</span></div> -<div class="line"><a name="l04347"></a><span class="lineno"> 4347</span>  }</div> -<div class="line"><a name="l04348"></a><span class="lineno"> 4348</span>  raw += filter_bytes;</div> -<div class="line"><a name="l04349"></a><span class="lineno"> 4349</span>  cur += output_bytes;</div> -<div class="line"><a name="l04350"></a><span class="lineno"> 4350</span>  prior += output_bytes;</div> -<div class="line"><a name="l04351"></a><span class="lineno"> 4351</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04352"></a><span class="lineno"> 4352</span>  raw += 1;</div> -<div class="line"><a name="l04353"></a><span class="lineno"> 4353</span>  cur += 1;</div> -<div class="line"><a name="l04354"></a><span class="lineno"> 4354</span>  prior += 1;</div> -<div class="line"><a name="l04355"></a><span class="lineno"> 4355</span>  }</div> -<div class="line"><a name="l04356"></a><span class="lineno"> 4356</span> </div> -<div class="line"><a name="l04357"></a><span class="lineno"> 4357</span>  <span class="comment">// this is a little gross, so that we don't switch per-pixel or per-component</span></div> -<div class="line"><a name="l04358"></a><span class="lineno"> 4358</span>  <span class="keywordflow">if</span> (depth < 8 || img_n == out_n) {</div> -<div class="line"><a name="l04359"></a><span class="lineno"> 4359</span>  <span class="keywordtype">int</span> nk = (width - 1)*filter_bytes;</div> -<div class="line"><a name="l04360"></a><span class="lineno"> 4360</span> <span class="preprocessor"> #define STBI__CASE(f) \</span></div> -<div class="line"><a name="l04361"></a><span class="lineno"> 4361</span> <span class="preprocessor"> case f: \</span></div> -<div class="line"><a name="l04362"></a><span class="lineno"> 4362</span> <span class="preprocessor"> for (k=0; k < nk; ++k)</span></div> -<div class="line"><a name="l04363"></a><span class="lineno"> 4363</span> <span class="preprocessor"></span> <span class="keywordflow">switch</span> (filter) {</div> -<div class="line"><a name="l04364"></a><span class="lineno"> 4364</span>  <span class="comment">// "none" filter turns into a memcpy here; make that explicit.</span></div> -<div class="line"><a name="l04365"></a><span class="lineno"> 4365</span>  <span class="keywordflow">case</span> STBI__F_none: memcpy(cur, raw, nk); <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04366"></a><span class="lineno"> 4366</span>  STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04367"></a><span class="lineno"> 4367</span>  STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04368"></a><span class="lineno"> 4368</span>  STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04369"></a><span class="lineno"> 4369</span>  STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04370"></a><span class="lineno"> 4370</span>  STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04371"></a><span class="lineno"> 4371</span>  STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04372"></a><span class="lineno"> 4372</span>  }</div> -<div class="line"><a name="l04373"></a><span class="lineno"> 4373</span> <span class="preprocessor"> #undef STBI__CASE</span></div> -<div class="line"><a name="l04374"></a><span class="lineno"> 4374</span> <span class="preprocessor"></span> raw += nk;</div> -<div class="line"><a name="l04375"></a><span class="lineno"> 4375</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04376"></a><span class="lineno"> 4376</span>  STBI_ASSERT(img_n+1 == out_n);</div> -<div class="line"><a name="l04377"></a><span class="lineno"> 4377</span> <span class="preprocessor"> #define STBI__CASE(f) \</span></div> -<div class="line"><a name="l04378"></a><span class="lineno"> 4378</span> <span class="preprocessor"> case f: \</span></div> -<div class="line"><a name="l04379"></a><span class="lineno"> 4379</span> <span class="preprocessor"> for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \</span></div> -<div class="line"><a name="l04380"></a><span class="lineno"> 4380</span> <span class="preprocessor"> for (k=0; k < filter_bytes; ++k)</span></div> -<div class="line"><a name="l04381"></a><span class="lineno"> 4381</span> <span class="preprocessor"></span> <span class="keywordflow">switch</span> (filter) {</div> -<div class="line"><a name="l04382"></a><span class="lineno"> 4382</span>  STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04383"></a><span class="lineno"> 4383</span>  STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04384"></a><span class="lineno"> 4384</span>  STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04385"></a><span class="lineno"> 4385</span>  STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04386"></a><span class="lineno"> 4386</span>  STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04387"></a><span class="lineno"> 4387</span>  STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04388"></a><span class="lineno"> 4388</span>  STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04389"></a><span class="lineno"> 4389</span>  }</div> -<div class="line"><a name="l04390"></a><span class="lineno"> 4390</span> <span class="preprocessor"> #undef STBI__CASE</span></div> -<div class="line"><a name="l04391"></a><span class="lineno"> 4391</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l04392"></a><span class="lineno"> 4392</span>  <span class="comment">// the loop above sets the high byte of the pixels' alpha, but for</span></div> -<div class="line"><a name="l04393"></a><span class="lineno"> 4393</span>  <span class="comment">// 16 bit png files we also need the low byte set. we'll do that here.</span></div> -<div class="line"><a name="l04394"></a><span class="lineno"> 4394</span>  <span class="keywordflow">if</span> (depth == 16) {</div> -<div class="line"><a name="l04395"></a><span class="lineno"> 4395</span>  cur = a->out + stride*j; <span class="comment">// start at the beginning of the row again</span></div> -<div class="line"><a name="l04396"></a><span class="lineno"> 4396</span>  <span class="keywordflow">for</span> (i=0; i < x; ++i,cur+=output_bytes) {</div> -<div class="line"><a name="l04397"></a><span class="lineno"> 4397</span>  cur[filter_bytes+1] = 255;</div> -<div class="line"><a name="l04398"></a><span class="lineno"> 4398</span>  }</div> -<div class="line"><a name="l04399"></a><span class="lineno"> 4399</span>  }</div> -<div class="line"><a name="l04400"></a><span class="lineno"> 4400</span>  }</div> -<div class="line"><a name="l04401"></a><span class="lineno"> 4401</span>  }</div> -<div class="line"><a name="l04402"></a><span class="lineno"> 4402</span> </div> -<div class="line"><a name="l04403"></a><span class="lineno"> 4403</span>  <span class="comment">// we make a separate pass to expand bits to pixels; for performance,</span></div> -<div class="line"><a name="l04404"></a><span class="lineno"> 4404</span>  <span class="comment">// this could run two scanlines behind the above code, so it won't</span></div> -<div class="line"><a name="l04405"></a><span class="lineno"> 4405</span>  <span class="comment">// intefere with filtering but will still be in the cache.</span></div> -<div class="line"><a name="l04406"></a><span class="lineno"> 4406</span>  <span class="keywordflow">if</span> (depth < 8) {</div> -<div class="line"><a name="l04407"></a><span class="lineno"> 4407</span>  <span class="keywordflow">for</span> (j=0; j < y; ++j) {</div> -<div class="line"><a name="l04408"></a><span class="lineno"> 4408</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *cur = a->out + stride*j;</div> -<div class="line"><a name="l04409"></a><span class="lineno"> 4409</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in = a->out + stride*j + x*out_n - img_width_bytes;</div> -<div class="line"><a name="l04410"></a><span class="lineno"> 4410</span>  <span class="comment">// unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit</span></div> -<div class="line"><a name="l04411"></a><span class="lineno"> 4411</span>  <span class="comment">// png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop</span></div> -<div class="line"><a name="l04412"></a><span class="lineno"> 4412</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; <span class="comment">// scale grayscale values to 0..255 range</span></div> -<div class="line"><a name="l04413"></a><span class="lineno"> 4413</span> </div> -<div class="line"><a name="l04414"></a><span class="lineno"> 4414</span>  <span class="comment">// note that the final byte might overshoot and write more data than desired.</span></div> -<div class="line"><a name="l04415"></a><span class="lineno"> 4415</span>  <span class="comment">// we can allocate enough data that this never writes out of memory, but it</span></div> -<div class="line"><a name="l04416"></a><span class="lineno"> 4416</span>  <span class="comment">// could also overwrite the next scanline. can it overwrite non-empty data</span></div> -<div class="line"><a name="l04417"></a><span class="lineno"> 4417</span>  <span class="comment">// on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel.</span></div> -<div class="line"><a name="l04418"></a><span class="lineno"> 4418</span>  <span class="comment">// so we need to explicitly clamp the final ones</span></div> -<div class="line"><a name="l04419"></a><span class="lineno"> 4419</span> </div> -<div class="line"><a name="l04420"></a><span class="lineno"> 4420</span>  <span class="keywordflow">if</span> (depth == 4) {</div> -<div class="line"><a name="l04421"></a><span class="lineno"> 4421</span>  <span class="keywordflow">for</span> (k=x*img_n; k >= 2; k-=2, ++in) {</div> -<div class="line"><a name="l04422"></a><span class="lineno"> 4422</span>  *cur++ = scale * ((*in >> 4) );</div> -<div class="line"><a name="l04423"></a><span class="lineno"> 4423</span>  *cur++ = scale * ((*in ) & 0x0f);</div> -<div class="line"><a name="l04424"></a><span class="lineno"> 4424</span>  }</div> -<div class="line"><a name="l04425"></a><span class="lineno"> 4425</span>  <span class="keywordflow">if</span> (k > 0) *cur++ = scale * ((*in >> 4) );</div> -<div class="line"><a name="l04426"></a><span class="lineno"> 4426</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 2) {</div> -<div class="line"><a name="l04427"></a><span class="lineno"> 4427</span>  <span class="keywordflow">for</span> (k=x*img_n; k >= 4; k-=4, ++in) {</div> -<div class="line"><a name="l04428"></a><span class="lineno"> 4428</span>  *cur++ = scale * ((*in >> 6) );</div> -<div class="line"><a name="l04429"></a><span class="lineno"> 4429</span>  *cur++ = scale * ((*in >> 4) & 0x03);</div> -<div class="line"><a name="l04430"></a><span class="lineno"> 4430</span>  *cur++ = scale * ((*in >> 2) & 0x03);</div> -<div class="line"><a name="l04431"></a><span class="lineno"> 4431</span>  *cur++ = scale * ((*in ) & 0x03);</div> -<div class="line"><a name="l04432"></a><span class="lineno"> 4432</span>  }</div> -<div class="line"><a name="l04433"></a><span class="lineno"> 4433</span>  <span class="keywordflow">if</span> (k > 0) *cur++ = scale * ((*in >> 6) );</div> -<div class="line"><a name="l04434"></a><span class="lineno"> 4434</span>  <span class="keywordflow">if</span> (k > 1) *cur++ = scale * ((*in >> 4) & 0x03);</div> -<div class="line"><a name="l04435"></a><span class="lineno"> 4435</span>  <span class="keywordflow">if</span> (k > 2) *cur++ = scale * ((*in >> 2) & 0x03);</div> -<div class="line"><a name="l04436"></a><span class="lineno"> 4436</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 1) {</div> -<div class="line"><a name="l04437"></a><span class="lineno"> 4437</span>  <span class="keywordflow">for</span> (k=x*img_n; k >= 8; k-=8, ++in) {</div> -<div class="line"><a name="l04438"></a><span class="lineno"> 4438</span>  *cur++ = scale * ((*in >> 7) );</div> -<div class="line"><a name="l04439"></a><span class="lineno"> 4439</span>  *cur++ = scale * ((*in >> 6) & 0x01);</div> -<div class="line"><a name="l04440"></a><span class="lineno"> 4440</span>  *cur++ = scale * ((*in >> 5) & 0x01);</div> -<div class="line"><a name="l04441"></a><span class="lineno"> 4441</span>  *cur++ = scale * ((*in >> 4) & 0x01);</div> -<div class="line"><a name="l04442"></a><span class="lineno"> 4442</span>  *cur++ = scale * ((*in >> 3) & 0x01);</div> -<div class="line"><a name="l04443"></a><span class="lineno"> 4443</span>  *cur++ = scale * ((*in >> 2) & 0x01);</div> -<div class="line"><a name="l04444"></a><span class="lineno"> 4444</span>  *cur++ = scale * ((*in >> 1) & 0x01);</div> -<div class="line"><a name="l04445"></a><span class="lineno"> 4445</span>  *cur++ = scale * ((*in ) & 0x01);</div> -<div class="line"><a name="l04446"></a><span class="lineno"> 4446</span>  }</div> -<div class="line"><a name="l04447"></a><span class="lineno"> 4447</span>  <span class="keywordflow">if</span> (k > 0) *cur++ = scale * ((*in >> 7) );</div> -<div class="line"><a name="l04448"></a><span class="lineno"> 4448</span>  <span class="keywordflow">if</span> (k > 1) *cur++ = scale * ((*in >> 6) & 0x01);</div> -<div class="line"><a name="l04449"></a><span class="lineno"> 4449</span>  <span class="keywordflow">if</span> (k > 2) *cur++ = scale * ((*in >> 5) & 0x01);</div> -<div class="line"><a name="l04450"></a><span class="lineno"> 4450</span>  <span class="keywordflow">if</span> (k > 3) *cur++ = scale * ((*in >> 4) & 0x01);</div> -<div class="line"><a name="l04451"></a><span class="lineno"> 4451</span>  <span class="keywordflow">if</span> (k > 4) *cur++ = scale * ((*in >> 3) & 0x01);</div> -<div class="line"><a name="l04452"></a><span class="lineno"> 4452</span>  <span class="keywordflow">if</span> (k > 5) *cur++ = scale * ((*in >> 2) & 0x01);</div> -<div class="line"><a name="l04453"></a><span class="lineno"> 4453</span>  <span class="keywordflow">if</span> (k > 6) *cur++ = scale * ((*in >> 1) & 0x01);</div> -<div class="line"><a name="l04454"></a><span class="lineno"> 4454</span>  }</div> -<div class="line"><a name="l04455"></a><span class="lineno"> 4455</span>  <span class="keywordflow">if</span> (img_n != out_n) {</div> -<div class="line"><a name="l04456"></a><span class="lineno"> 4456</span>  <span class="keywordtype">int</span> q;</div> -<div class="line"><a name="l04457"></a><span class="lineno"> 4457</span>  <span class="comment">// insert alpha = 255</span></div> -<div class="line"><a name="l04458"></a><span class="lineno"> 4458</span>  cur = a->out + stride*j;</div> -<div class="line"><a name="l04459"></a><span class="lineno"> 4459</span>  <span class="keywordflow">if</span> (img_n == 1) {</div> -<div class="line"><a name="l04460"></a><span class="lineno"> 4460</span>  <span class="keywordflow">for</span> (q=x-1; q >= 0; --q) {</div> -<div class="line"><a name="l04461"></a><span class="lineno"> 4461</span>  cur[q*2+1] = 255;</div> -<div class="line"><a name="l04462"></a><span class="lineno"> 4462</span>  cur[q*2+0] = cur[q];</div> -<div class="line"><a name="l04463"></a><span class="lineno"> 4463</span>  }</div> -<div class="line"><a name="l04464"></a><span class="lineno"> 4464</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04465"></a><span class="lineno"> 4465</span>  STBI_ASSERT(img_n == 3);</div> -<div class="line"><a name="l04466"></a><span class="lineno"> 4466</span>  <span class="keywordflow">for</span> (q=x-1; q >= 0; --q) {</div> -<div class="line"><a name="l04467"></a><span class="lineno"> 4467</span>  cur[q*4+3] = 255;</div> -<div class="line"><a name="l04468"></a><span class="lineno"> 4468</span>  cur[q*4+2] = cur[q*3+2];</div> -<div class="line"><a name="l04469"></a><span class="lineno"> 4469</span>  cur[q*4+1] = cur[q*3+1];</div> -<div class="line"><a name="l04470"></a><span class="lineno"> 4470</span>  cur[q*4+0] = cur[q*3+0];</div> -<div class="line"><a name="l04471"></a><span class="lineno"> 4471</span>  }</div> -<div class="line"><a name="l04472"></a><span class="lineno"> 4472</span>  }</div> -<div class="line"><a name="l04473"></a><span class="lineno"> 4473</span>  }</div> -<div class="line"><a name="l04474"></a><span class="lineno"> 4474</span>  }</div> -<div class="line"><a name="l04475"></a><span class="lineno"> 4475</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 16) {</div> -<div class="line"><a name="l04476"></a><span class="lineno"> 4476</span>  <span class="comment">// force the image data from big-endian to platform-native.</span></div> -<div class="line"><a name="l04477"></a><span class="lineno"> 4477</span>  <span class="comment">// this is done in a separate pass due to the decoding relying</span></div> -<div class="line"><a name="l04478"></a><span class="lineno"> 4478</span>  <span class="comment">// on the data being untouched, but could probably be done</span></div> -<div class="line"><a name="l04479"></a><span class="lineno"> 4479</span>  <span class="comment">// per-line during decode if care is taken.</span></div> -<div class="line"><a name="l04480"></a><span class="lineno"> 4480</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *cur = a->out;</div> -<div class="line"><a name="l04481"></a><span class="lineno"> 4481</span>  stbi__uint16 *cur16 = (stbi__uint16*)cur;</div> -<div class="line"><a name="l04482"></a><span class="lineno"> 4482</span> </div> -<div class="line"><a name="l04483"></a><span class="lineno"> 4483</span>  <span class="keywordflow">for</span>(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) {</div> -<div class="line"><a name="l04484"></a><span class="lineno"> 4484</span>  *cur16 = (cur[0] << 8) | cur[1];</div> -<div class="line"><a name="l04485"></a><span class="lineno"> 4485</span>  }</div> -<div class="line"><a name="l04486"></a><span class="lineno"> 4486</span>  }</div> -<div class="line"><a name="l04487"></a><span class="lineno"> 4487</span> </div> -<div class="line"><a name="l04488"></a><span class="lineno"> 4488</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04489"></a><span class="lineno"> 4489</span> }</div> -<div class="line"><a name="l04490"></a><span class="lineno"> 4490</span> </div> -<div class="line"><a name="l04491"></a><span class="lineno"> 4491</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__create_png_image(stbi__png *a, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *image_data, stbi__uint32 image_data_len, <span class="keywordtype">int</span> out_n, <span class="keywordtype">int</span> depth, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> interlaced)</div> -<div class="line"><a name="l04492"></a><span class="lineno"> 4492</span> {</div> -<div class="line"><a name="l04493"></a><span class="lineno"> 4493</span>  <span class="keywordtype">int</span> bytes = (depth == 16 ? 2 : 1);</div> -<div class="line"><a name="l04494"></a><span class="lineno"> 4494</span>  <span class="keywordtype">int</span> out_bytes = out_n * bytes;</div> -<div class="line"><a name="l04495"></a><span class="lineno"> 4495</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<span class="keyword">final</span>;</div> -<div class="line"><a name="l04496"></a><span class="lineno"> 4496</span>  <span class="keywordtype">int</span> p;</div> -<div class="line"><a name="l04497"></a><span class="lineno"> 4497</span>  <span class="keywordflow">if</span> (!interlaced)</div> -<div class="line"><a name="l04498"></a><span class="lineno"> 4498</span>  <span class="keywordflow">return</span> stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color);</div> -<div class="line"><a name="l04499"></a><span class="lineno"> 4499</span> </div> -<div class="line"><a name="l04500"></a><span class="lineno"> 4500</span>  <span class="comment">// de-interlacing</span></div> -<div class="line"><a name="l04501"></a><span class="lineno"> 4501</span>  <span class="keyword">final</span> = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0);</div> -<div class="line"><a name="l04502"></a><span class="lineno"> 4502</span>  <span class="keywordflow">for</span> (p=0; p < 7; ++p) {</div> -<div class="line"><a name="l04503"></a><span class="lineno"> 4503</span>  <span class="keywordtype">int</span> xorig[] = { 0,4,0,2,0,1,0 };</div> -<div class="line"><a name="l04504"></a><span class="lineno"> 4504</span>  <span class="keywordtype">int</span> yorig[] = { 0,0,4,0,2,0,1 };</div> -<div class="line"><a name="l04505"></a><span class="lineno"> 4505</span>  <span class="keywordtype">int</span> xspc[] = { 8,8,4,4,2,2,1 };</div> -<div class="line"><a name="l04506"></a><span class="lineno"> 4506</span>  <span class="keywordtype">int</span> yspc[] = { 8,8,8,4,4,2,2 };</div> -<div class="line"><a name="l04507"></a><span class="lineno"> 4507</span>  <span class="keywordtype">int</span> i,j,x,y;</div> -<div class="line"><a name="l04508"></a><span class="lineno"> 4508</span>  <span class="comment">// pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1</span></div> -<div class="line"><a name="l04509"></a><span class="lineno"> 4509</span>  x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p];</div> -<div class="line"><a name="l04510"></a><span class="lineno"> 4510</span>  y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p];</div> -<div class="line"><a name="l04511"></a><span class="lineno"> 4511</span>  <span class="keywordflow">if</span> (x && y) {</div> -<div class="line"><a name="l04512"></a><span class="lineno"> 4512</span>  stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y;</div> -<div class="line"><a name="l04513"></a><span class="lineno"> 4513</span>  <span class="keywordflow">if</span> (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) {</div> -<div class="line"><a name="l04514"></a><span class="lineno"> 4514</span>  STBI_FREE(<span class="keyword">final</span>);</div> -<div class="line"><a name="l04515"></a><span class="lineno"> 4515</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04516"></a><span class="lineno"> 4516</span>  }</div> -<div class="line"><a name="l04517"></a><span class="lineno"> 4517</span>  <span class="keywordflow">for</span> (j=0; j < y; ++j) {</div> -<div class="line"><a name="l04518"></a><span class="lineno"> 4518</span>  <span class="keywordflow">for</span> (i=0; i < x; ++i) {</div> -<div class="line"><a name="l04519"></a><span class="lineno"> 4519</span>  <span class="keywordtype">int</span> out_y = j*yspc[p]+yorig[p];</div> -<div class="line"><a name="l04520"></a><span class="lineno"> 4520</span>  <span class="keywordtype">int</span> out_x = i*xspc[p]+xorig[p];</div> -<div class="line"><a name="l04521"></a><span class="lineno"> 4521</span>  memcpy(<span class="keyword">final</span> + out_y*a->s->img_x*out_bytes + out_x*out_bytes,</div> -<div class="line"><a name="l04522"></a><span class="lineno"> 4522</span>  a->out + (j*x+i)*out_bytes, out_bytes);</div> -<div class="line"><a name="l04523"></a><span class="lineno"> 4523</span>  }</div> -<div class="line"><a name="l04524"></a><span class="lineno"> 4524</span>  }</div> -<div class="line"><a name="l04525"></a><span class="lineno"> 4525</span>  STBI_FREE(a->out);</div> -<div class="line"><a name="l04526"></a><span class="lineno"> 4526</span>  image_data += img_len;</div> -<div class="line"><a name="l04527"></a><span class="lineno"> 4527</span>  image_data_len -= img_len;</div> -<div class="line"><a name="l04528"></a><span class="lineno"> 4528</span>  }</div> -<div class="line"><a name="l04529"></a><span class="lineno"> 4529</span>  }</div> -<div class="line"><a name="l04530"></a><span class="lineno"> 4530</span>  a->out = <span class="keyword">final</span>;</div> -<div class="line"><a name="l04531"></a><span class="lineno"> 4531</span> </div> -<div class="line"><a name="l04532"></a><span class="lineno"> 4532</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04533"></a><span class="lineno"> 4533</span> }</div> -<div class="line"><a name="l04534"></a><span class="lineno"> 4534</span> </div> -<div class="line"><a name="l04535"></a><span class="lineno"> 4535</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__compute_transparency(stbi__png *z, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> tc[3], <span class="keywordtype">int</span> out_n)</div> -<div class="line"><a name="l04536"></a><span class="lineno"> 4536</span> {</div> -<div class="line"><a name="l04537"></a><span class="lineno"> 4537</span>  stbi__context *s = z->s;</div> -<div class="line"><a name="l04538"></a><span class="lineno"> 4538</span>  stbi__uint32 i, pixel_count = s->img_x * s->img_y;</div> -<div class="line"><a name="l04539"></a><span class="lineno"> 4539</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = z->out;</div> -<div class="line"><a name="l04540"></a><span class="lineno"> 4540</span> </div> -<div class="line"><a name="l04541"></a><span class="lineno"> 4541</span>  <span class="comment">// compute color-based transparency, assuming we've</span></div> -<div class="line"><a name="l04542"></a><span class="lineno"> 4542</span>  <span class="comment">// already got 255 as the alpha value in the output</span></div> -<div class="line"><a name="l04543"></a><span class="lineno"> 4543</span>  STBI_ASSERT(out_n == 2 || out_n == 4);</div> -<div class="line"><a name="l04544"></a><span class="lineno"> 4544</span> </div> -<div class="line"><a name="l04545"></a><span class="lineno"> 4545</span>  <span class="keywordflow">if</span> (out_n == 2) {</div> -<div class="line"><a name="l04546"></a><span class="lineno"> 4546</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04547"></a><span class="lineno"> 4547</span>  p[1] = (p[0] == tc[0] ? 0 : 255);</div> -<div class="line"><a name="l04548"></a><span class="lineno"> 4548</span>  p += 2;</div> -<div class="line"><a name="l04549"></a><span class="lineno"> 4549</span>  }</div> -<div class="line"><a name="l04550"></a><span class="lineno"> 4550</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04551"></a><span class="lineno"> 4551</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04552"></a><span class="lineno"> 4552</span>  <span class="keywordflow">if</span> (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])</div> -<div class="line"><a name="l04553"></a><span class="lineno"> 4553</span>  p[3] = 0;</div> -<div class="line"><a name="l04554"></a><span class="lineno"> 4554</span>  p += 4;</div> -<div class="line"><a name="l04555"></a><span class="lineno"> 4555</span>  }</div> -<div class="line"><a name="l04556"></a><span class="lineno"> 4556</span>  }</div> -<div class="line"><a name="l04557"></a><span class="lineno"> 4557</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04558"></a><span class="lineno"> 4558</span> }</div> -<div class="line"><a name="l04559"></a><span class="lineno"> 4559</span> </div> -<div class="line"><a name="l04560"></a><span class="lineno"> 4560</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], <span class="keywordtype">int</span> out_n)</div> -<div class="line"><a name="l04561"></a><span class="lineno"> 4561</span> {</div> -<div class="line"><a name="l04562"></a><span class="lineno"> 4562</span>  stbi__context *s = z->s;</div> -<div class="line"><a name="l04563"></a><span class="lineno"> 4563</span>  stbi__uint32 i, pixel_count = s->img_x * s->img_y;</div> -<div class="line"><a name="l04564"></a><span class="lineno"> 4564</span>  stbi__uint16 *p = (stbi__uint16*) z->out;</div> -<div class="line"><a name="l04565"></a><span class="lineno"> 4565</span> </div> -<div class="line"><a name="l04566"></a><span class="lineno"> 4566</span>  <span class="comment">// compute color-based transparency, assuming we've</span></div> -<div class="line"><a name="l04567"></a><span class="lineno"> 4567</span>  <span class="comment">// already got 65535 as the alpha value in the output</span></div> -<div class="line"><a name="l04568"></a><span class="lineno"> 4568</span>  STBI_ASSERT(out_n == 2 || out_n == 4);</div> -<div class="line"><a name="l04569"></a><span class="lineno"> 4569</span> </div> -<div class="line"><a name="l04570"></a><span class="lineno"> 4570</span>  <span class="keywordflow">if</span> (out_n == 2) {</div> -<div class="line"><a name="l04571"></a><span class="lineno"> 4571</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04572"></a><span class="lineno"> 4572</span>  p[1] = (p[0] == tc[0] ? 0 : 65535);</div> -<div class="line"><a name="l04573"></a><span class="lineno"> 4573</span>  p += 2;</div> -<div class="line"><a name="l04574"></a><span class="lineno"> 4574</span>  }</div> -<div class="line"><a name="l04575"></a><span class="lineno"> 4575</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04576"></a><span class="lineno"> 4576</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04577"></a><span class="lineno"> 4577</span>  <span class="keywordflow">if</span> (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])</div> -<div class="line"><a name="l04578"></a><span class="lineno"> 4578</span>  p[3] = 0;</div> -<div class="line"><a name="l04579"></a><span class="lineno"> 4579</span>  p += 4;</div> -<div class="line"><a name="l04580"></a><span class="lineno"> 4580</span>  }</div> -<div class="line"><a name="l04581"></a><span class="lineno"> 4581</span>  }</div> -<div class="line"><a name="l04582"></a><span class="lineno"> 4582</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04583"></a><span class="lineno"> 4583</span> }</div> -<div class="line"><a name="l04584"></a><span class="lineno"> 4584</span> </div> -<div class="line"><a name="l04585"></a><span class="lineno"> 4585</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__expand_png_palette(stbi__png *a, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *palette, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> pal_img_n)</div> -<div class="line"><a name="l04586"></a><span class="lineno"> 4586</span> {</div> -<div class="line"><a name="l04587"></a><span class="lineno"> 4587</span>  stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y;</div> -<div class="line"><a name="l04588"></a><span class="lineno"> 4588</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p, *temp_out, *orig = a->out;</div> -<div class="line"><a name="l04589"></a><span class="lineno"> 4589</span> </div> -<div class="line"><a name="l04590"></a><span class="lineno"> 4590</span>  p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad2(pixel_count, pal_img_n, 0);</div> -<div class="line"><a name="l04591"></a><span class="lineno"> 4591</span>  <span class="keywordflow">if</span> (p == NULL) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l04592"></a><span class="lineno"> 4592</span> </div> -<div class="line"><a name="l04593"></a><span class="lineno"> 4593</span>  <span class="comment">// between here and free(out) below, exitting would leak</span></div> -<div class="line"><a name="l04594"></a><span class="lineno"> 4594</span>  temp_out = p;</div> -<div class="line"><a name="l04595"></a><span class="lineno"> 4595</span> </div> -<div class="line"><a name="l04596"></a><span class="lineno"> 4596</span>  <span class="keywordflow">if</span> (pal_img_n == 3) {</div> -<div class="line"><a name="l04597"></a><span class="lineno"> 4597</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04598"></a><span class="lineno"> 4598</span>  <span class="keywordtype">int</span> n = orig[i]*4;</div> -<div class="line"><a name="l04599"></a><span class="lineno"> 4599</span>  p[0] = palette[n ];</div> -<div class="line"><a name="l04600"></a><span class="lineno"> 4600</span>  p[1] = palette[n+1];</div> -<div class="line"><a name="l04601"></a><span class="lineno"> 4601</span>  p[2] = palette[n+2];</div> -<div class="line"><a name="l04602"></a><span class="lineno"> 4602</span>  p += 3;</div> -<div class="line"><a name="l04603"></a><span class="lineno"> 4603</span>  }</div> -<div class="line"><a name="l04604"></a><span class="lineno"> 4604</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04605"></a><span class="lineno"> 4605</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04606"></a><span class="lineno"> 4606</span>  <span class="keywordtype">int</span> n = orig[i]*4;</div> -<div class="line"><a name="l04607"></a><span class="lineno"> 4607</span>  p[0] = palette[n ];</div> -<div class="line"><a name="l04608"></a><span class="lineno"> 4608</span>  p[1] = palette[n+1];</div> -<div class="line"><a name="l04609"></a><span class="lineno"> 4609</span>  p[2] = palette[n+2];</div> -<div class="line"><a name="l04610"></a><span class="lineno"> 4610</span>  p[3] = palette[n+3];</div> -<div class="line"><a name="l04611"></a><span class="lineno"> 4611</span>  p += 4;</div> -<div class="line"><a name="l04612"></a><span class="lineno"> 4612</span>  }</div> -<div class="line"><a name="l04613"></a><span class="lineno"> 4613</span>  }</div> -<div class="line"><a name="l04614"></a><span class="lineno"> 4614</span>  STBI_FREE(a->out);</div> -<div class="line"><a name="l04615"></a><span class="lineno"> 4615</span>  a->out = temp_out;</div> -<div class="line"><a name="l04616"></a><span class="lineno"> 4616</span> </div> -<div class="line"><a name="l04617"></a><span class="lineno"> 4617</span>  STBI_NOTUSED(len);</div> -<div class="line"><a name="l04618"></a><span class="lineno"> 4618</span> </div> -<div class="line"><a name="l04619"></a><span class="lineno"> 4619</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04620"></a><span class="lineno"> 4620</span> }</div> -<div class="line"><a name="l04621"></a><span class="lineno"> 4621</span> </div> -<div class="line"><a name="l04622"></a><span class="lineno"> 4622</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__unpremultiply_on_load = 0;</div> -<div class="line"><a name="l04623"></a><span class="lineno"> 4623</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__de_iphone_flag = 0;</div> -<div class="line"><a name="l04624"></a><span class="lineno"> 4624</span> </div> -<div class="line"><a name="l04625"></a><span class="lineno"> 4625</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a3f02e0053e1c8d08a3ed436e6a82c7c9">stbi_set_unpremultiply_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_unpremultiply)</div> -<div class="line"><a name="l04626"></a><span class="lineno"> 4626</span> {</div> -<div class="line"><a name="l04627"></a><span class="lineno"> 4627</span>  stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply;</div> +<div class="line"><a name="l04218"></a><span class="lineno"> 4218</span>  <span class="keywordtype">int</span> r;</div> +<div class="line"><a name="l04219"></a><span class="lineno"> 4219</span>  stbi__jpeg *j = (stbi__jpeg *)stbi__malloc(<span class="keyword">sizeof</span>(stbi__jpeg));</div> +<div class="line"><a name="l04220"></a><span class="lineno"> 4220</span>  j->s = s;</div> +<div class="line"><a name="l04221"></a><span class="lineno"> 4221</span>  stbi__setup_jpeg(j);</div> +<div class="line"><a name="l04222"></a><span class="lineno"> 4222</span>  r = stbi__decode_jpeg_header(j, STBI__SCAN_type);</div> +<div class="line"><a name="l04223"></a><span class="lineno"> 4223</span>  stbi__rewind(s);</div> +<div class="line"><a name="l04224"></a><span class="lineno"> 4224</span>  STBI_FREE(j);</div> +<div class="line"><a name="l04225"></a><span class="lineno"> 4225</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l04226"></a><span class="lineno"> 4226</span> }</div> +<div class="line"><a name="l04227"></a><span class="lineno"> 4227</span> </div> +<div class="line"><a name="l04228"></a><span class="lineno"> 4228</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_info_raw(stbi__jpeg *j, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l04229"></a><span class="lineno"> 4229</span> {</div> +<div class="line"><a name="l04230"></a><span class="lineno"> 4230</span>  <span class="keywordflow">if</span> (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) {</div> +<div class="line"><a name="l04231"></a><span class="lineno"> 4231</span>  stbi__rewind(j->s);</div> +<div class="line"><a name="l04232"></a><span class="lineno"> 4232</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04233"></a><span class="lineno"> 4233</span>  }</div> +<div class="line"><a name="l04234"></a><span class="lineno"> 4234</span>  <span class="keywordflow">if</span> (x)</div> +<div class="line"><a name="l04235"></a><span class="lineno"> 4235</span>  *x = j->s->img_x;</div> +<div class="line"><a name="l04236"></a><span class="lineno"> 4236</span>  <span class="keywordflow">if</span> (y)</div> +<div class="line"><a name="l04237"></a><span class="lineno"> 4237</span>  *y = j->s->img_y;</div> +<div class="line"><a name="l04238"></a><span class="lineno"> 4238</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l04239"></a><span class="lineno"> 4239</span>  *comp = j->s->img_n >= 3 ? 3 : 1;</div> +<div class="line"><a name="l04240"></a><span class="lineno"> 4240</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04241"></a><span class="lineno"> 4241</span> }</div> +<div class="line"><a name="l04242"></a><span class="lineno"> 4242</span> </div> +<div class="line"><a name="l04243"></a><span class="lineno"> 4243</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__jpeg_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l04244"></a><span class="lineno"> 4244</span> {</div> +<div class="line"><a name="l04245"></a><span class="lineno"> 4245</span>  <span class="keywordtype">int</span> result;</div> +<div class="line"><a name="l04246"></a><span class="lineno"> 4246</span>  stbi__jpeg *j = (stbi__jpeg *)(stbi__malloc(<span class="keyword">sizeof</span>(stbi__jpeg)));</div> +<div class="line"><a name="l04247"></a><span class="lineno"> 4247</span>  j->s = s;</div> +<div class="line"><a name="l04248"></a><span class="lineno"> 4248</span>  result = stbi__jpeg_info_raw(j, x, y, comp);</div> +<div class="line"><a name="l04249"></a><span class="lineno"> 4249</span>  STBI_FREE(j);</div> +<div class="line"><a name="l04250"></a><span class="lineno"> 4250</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l04251"></a><span class="lineno"> 4251</span> }</div> +<div class="line"><a name="l04252"></a><span class="lineno"> 4252</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l04253"></a><span class="lineno"> 4253</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l04254"></a><span class="lineno"> 4254</span>  <span class="comment">// public domain zlib decode v0.2 Sean Barrett 2006-11-18</span></div> +<div class="line"><a name="l04255"></a><span class="lineno"> 4255</span>  <span class="comment">// simple implementation</span></div> +<div class="line"><a name="l04256"></a><span class="lineno"> 4256</span>  <span class="comment">// - all input must be provided in an upfront buffer</span></div> +<div class="line"><a name="l04257"></a><span class="lineno"> 4257</span>  <span class="comment">// - all output is written to a single output buffer (can</span></div> +<div class="line"><a name="l04258"></a><span class="lineno"> 4258</span>  <span class="comment">// malloc/realloc)</span></div> +<div class="line"><a name="l04259"></a><span class="lineno"> 4259</span>  <span class="comment">// performance</span></div> +<div class="line"><a name="l04260"></a><span class="lineno"> 4260</span>  <span class="comment">// - fast huffman</span></div> +<div class="line"><a name="l04261"></a><span class="lineno"> 4261</span> </div> +<div class="line"><a name="l04262"></a><span class="lineno"> 4262</span> <span class="preprocessor">#ifndef STBI_NO_ZLIB</span></div> +<div class="line"><a name="l04263"></a><span class="lineno"> 4263</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l04264"></a><span class="lineno"> 4264</span> <span class="comment">// fast-way is faster to check than jpeg huffman, but slow way is slower</span></div> +<div class="line"><a name="l04265"></a><span class="lineno"> 4265</span> <span class="preprocessor">#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables</span></div> +<div class="line"><a name="l04266"></a><span class="lineno"> 4266</span> <span class="preprocessor"></span><span class="preprocessor">#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1)</span></div> +<div class="line"><a name="l04267"></a><span class="lineno"> 4267</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l04268"></a><span class="lineno"> 4268</span> <span class="comment">// zlib-style huffman encoding</span></div> +<div class="line"><a name="l04269"></a><span class="lineno"> 4269</span> <span class="comment">// (jpegs packs from left, zlib from right, so can't share code)</span></div> +<div class="line"><a name="l04270"></a><span class="lineno"> 4270</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l04271"></a><span class="lineno"> 4271</span>  stbi__uint16 fast[1 << STBI__ZFAST_BITS];</div> +<div class="line"><a name="l04272"></a><span class="lineno"> 4272</span>  stbi__uint16 firstcode[16];</div> +<div class="line"><a name="l04273"></a><span class="lineno"> 4273</span>  <span class="keywordtype">int</span> maxcode[17];</div> +<div class="line"><a name="l04274"></a><span class="lineno"> 4274</span>  stbi__uint16 firstsymbol[16];</div> +<div class="line"><a name="l04275"></a><span class="lineno"> 4275</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> size[288];</div> +<div class="line"><a name="l04276"></a><span class="lineno"> 4276</span>  stbi__uint16 value[288];</div> +<div class="line"><a name="l04277"></a><span class="lineno"> 4277</span> } stbi__zhuffman;</div> +<div class="line"><a name="l04278"></a><span class="lineno"> 4278</span> </div> +<div class="line"><a name="l04279"></a><span class="lineno"> 4279</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bitreverse16(<span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l04280"></a><span class="lineno"> 4280</span> {</div> +<div class="line"><a name="l04281"></a><span class="lineno"> 4281</span>  n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1);</div> +<div class="line"><a name="l04282"></a><span class="lineno"> 4282</span>  n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2);</div> +<div class="line"><a name="l04283"></a><span class="lineno"> 4283</span>  n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4);</div> +<div class="line"><a name="l04284"></a><span class="lineno"> 4284</span>  n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8);</div> +<div class="line"><a name="l04285"></a><span class="lineno"> 4285</span>  <span class="keywordflow">return</span> n;</div> +<div class="line"><a name="l04286"></a><span class="lineno"> 4286</span> }</div> +<div class="line"><a name="l04287"></a><span class="lineno"> 4287</span> </div> +<div class="line"><a name="l04288"></a><span class="lineno"> 4288</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bit_reverse(<span class="keywordtype">int</span> v, <span class="keywordtype">int</span> bits)</div> +<div class="line"><a name="l04289"></a><span class="lineno"> 4289</span> {</div> +<div class="line"><a name="l04290"></a><span class="lineno"> 4290</span>  STBI_ASSERT(bits <= 16);</div> +<div class="line"><a name="l04291"></a><span class="lineno"> 4291</span>  <span class="comment">// to bit reverse n bits, reverse 16 and shift</span></div> +<div class="line"><a name="l04292"></a><span class="lineno"> 4292</span>  <span class="comment">// e.g. 11 bits, bit reverse and shift away 5</span></div> +<div class="line"><a name="l04293"></a><span class="lineno"> 4293</span>  <span class="keywordflow">return</span> stbi__bitreverse16(v) >> (16 - bits);</div> +<div class="line"><a name="l04294"></a><span class="lineno"> 4294</span> }</div> +<div class="line"><a name="l04295"></a><span class="lineno"> 4295</span> </div> +<div class="line"><a name="l04296"></a><span class="lineno"> 4296</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zbuild_huffman(stbi__zhuffman *z, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *sizelist,</div> +<div class="line"><a name="l04297"></a><span class="lineno"> 4297</span>  <span class="keywordtype">int</span> num)</div> +<div class="line"><a name="l04298"></a><span class="lineno"> 4298</span> {</div> +<div class="line"><a name="l04299"></a><span class="lineno"> 4299</span>  <span class="keywordtype">int</span> i, k = 0;</div> +<div class="line"><a name="l04300"></a><span class="lineno"> 4300</span>  <span class="keywordtype">int</span> code, next_code[16], sizes[17];</div> +<div class="line"><a name="l04301"></a><span class="lineno"> 4301</span> </div> +<div class="line"><a name="l04302"></a><span class="lineno"> 4302</span>  <span class="comment">// DEFLATE spec for generating codes</span></div> +<div class="line"><a name="l04303"></a><span class="lineno"> 4303</span>  memset(sizes, 0, <span class="keyword">sizeof</span>(sizes));</div> +<div class="line"><a name="l04304"></a><span class="lineno"> 4304</span>  memset(z->fast, 0, <span class="keyword">sizeof</span>(z->fast));</div> +<div class="line"><a name="l04305"></a><span class="lineno"> 4305</span>  <span class="keywordflow">for</span> (i = 0; i < num; ++i)</div> +<div class="line"><a name="l04306"></a><span class="lineno"> 4306</span>  ++sizes[sizelist[i]];</div> +<div class="line"><a name="l04307"></a><span class="lineno"> 4307</span>  sizes[0] = 0;</div> +<div class="line"><a name="l04308"></a><span class="lineno"> 4308</span>  <span class="keywordflow">for</span> (i = 1; i < 16; ++i)</div> +<div class="line"><a name="l04309"></a><span class="lineno"> 4309</span>  <span class="keywordflow">if</span> (sizes[i] > (1 << i))</div> +<div class="line"><a name="l04310"></a><span class="lineno"> 4310</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad sizes"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04311"></a><span class="lineno"> 4311</span>  code = 0;</div> +<div class="line"><a name="l04312"></a><span class="lineno"> 4312</span>  <span class="keywordflow">for</span> (i = 1; i < 16; ++i) {</div> +<div class="line"><a name="l04313"></a><span class="lineno"> 4313</span>  next_code[i] = code;</div> +<div class="line"><a name="l04314"></a><span class="lineno"> 4314</span>  z->firstcode[i] = (stbi__uint16)code;</div> +<div class="line"><a name="l04315"></a><span class="lineno"> 4315</span>  z->firstsymbol[i] = (stbi__uint16)k;</div> +<div class="line"><a name="l04316"></a><span class="lineno"> 4316</span>  code = (code + sizes[i]);</div> +<div class="line"><a name="l04317"></a><span class="lineno"> 4317</span>  <span class="keywordflow">if</span> (sizes[i])</div> +<div class="line"><a name="l04318"></a><span class="lineno"> 4318</span>  <span class="keywordflow">if</span> (code - 1 >= (1 << i))</div> +<div class="line"><a name="l04319"></a><span class="lineno"> 4319</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04320"></a><span class="lineno"> 4320</span>  z->maxcode[i] = code << (16 - i); <span class="comment">// preshift for inner loop</span></div> +<div class="line"><a name="l04321"></a><span class="lineno"> 4321</span>  code <<= 1;</div> +<div class="line"><a name="l04322"></a><span class="lineno"> 4322</span>  k += sizes[i];</div> +<div class="line"><a name="l04323"></a><span class="lineno"> 4323</span>  }</div> +<div class="line"><a name="l04324"></a><span class="lineno"> 4324</span>  z->maxcode[16] = 0x10000; <span class="comment">// sentinel</span></div> +<div class="line"><a name="l04325"></a><span class="lineno"> 4325</span>  <span class="keywordflow">for</span> (i = 0; i < num; ++i) {</div> +<div class="line"><a name="l04326"></a><span class="lineno"> 4326</span>  <span class="keywordtype">int</span> s = sizelist[i];</div> +<div class="line"><a name="l04327"></a><span class="lineno"> 4327</span>  <span class="keywordflow">if</span> (s) {</div> +<div class="line"><a name="l04328"></a><span class="lineno"> 4328</span>  <span class="keywordtype">int</span> c = next_code[s] - z->firstcode[s] + z->firstsymbol[s];</div> +<div class="line"><a name="l04329"></a><span class="lineno"> 4329</span>  stbi__uint16 fastv = (stbi__uint16)((s << 9) | i);</div> +<div class="line"><a name="l04330"></a><span class="lineno"> 4330</span>  z->size[c] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)s;</div> +<div class="line"><a name="l04331"></a><span class="lineno"> 4331</span>  z->value[c] = (stbi__uint16)i;</div> +<div class="line"><a name="l04332"></a><span class="lineno"> 4332</span>  <span class="keywordflow">if</span> (s <= STBI__ZFAST_BITS) {</div> +<div class="line"><a name="l04333"></a><span class="lineno"> 4333</span>  <span class="keywordtype">int</span> j = stbi__bit_reverse(next_code[s], s);</div> +<div class="line"><a name="l04334"></a><span class="lineno"> 4334</span>  <span class="keywordflow">while</span> (j < (1 << STBI__ZFAST_BITS)) {</div> +<div class="line"><a name="l04335"></a><span class="lineno"> 4335</span>  z->fast[j] = fastv;</div> +<div class="line"><a name="l04336"></a><span class="lineno"> 4336</span>  j += (1 << s);</div> +<div class="line"><a name="l04337"></a><span class="lineno"> 4337</span>  }</div> +<div class="line"><a name="l04338"></a><span class="lineno"> 4338</span>  }</div> +<div class="line"><a name="l04339"></a><span class="lineno"> 4339</span>  ++next_code[s];</div> +<div class="line"><a name="l04340"></a><span class="lineno"> 4340</span>  }</div> +<div class="line"><a name="l04341"></a><span class="lineno"> 4341</span>  }</div> +<div class="line"><a name="l04342"></a><span class="lineno"> 4342</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04343"></a><span class="lineno"> 4343</span> }</div> +<div class="line"><a name="l04344"></a><span class="lineno"> 4344</span> </div> +<div class="line"><a name="l04345"></a><span class="lineno"> 4345</span> <span class="comment">// zlib-from-memory implementation for PNG reading</span></div> +<div class="line"><a name="l04346"></a><span class="lineno"> 4346</span> <span class="comment">// because PNG allows splitting the zlib stream arbitrarily,</span></div> +<div class="line"><a name="l04347"></a><span class="lineno"> 4347</span> <span class="comment">// and it's annoying structurally to have PNG call ZLIB call PNG,</span></div> +<div class="line"><a name="l04348"></a><span class="lineno"> 4348</span> <span class="comment">// we require PNG read all the IDATs and combine them into a single</span></div> +<div class="line"><a name="l04349"></a><span class="lineno"> 4349</span> <span class="comment">// memory buffer</span></div> +<div class="line"><a name="l04350"></a><span class="lineno"> 4350</span> </div> +<div class="line"><a name="l04351"></a><span class="lineno"> 4351</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l04352"></a><span class="lineno"> 4352</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *zbuffer, *zbuffer_end;</div> +<div class="line"><a name="l04353"></a><span class="lineno"> 4353</span>  <span class="keywordtype">int</span> num_bits;</div> +<div class="line"><a name="l04354"></a><span class="lineno"> 4354</span>  stbi__uint32 code_buffer;</div> +<div class="line"><a name="l04355"></a><span class="lineno"> 4355</span> </div> +<div class="line"><a name="l04356"></a><span class="lineno"> 4356</span>  <span class="keywordtype">char</span> *zout;</div> +<div class="line"><a name="l04357"></a><span class="lineno"> 4357</span>  <span class="keywordtype">char</span> *zout_start;</div> +<div class="line"><a name="l04358"></a><span class="lineno"> 4358</span>  <span class="keywordtype">char</span> *zout_end;</div> +<div class="line"><a name="l04359"></a><span class="lineno"> 4359</span>  <span class="keywordtype">int</span> z_expandable;</div> +<div class="line"><a name="l04360"></a><span class="lineno"> 4360</span> </div> +<div class="line"><a name="l04361"></a><span class="lineno"> 4361</span>  stbi__zhuffman z_length, z_distance;</div> +<div class="line"><a name="l04362"></a><span class="lineno"> 4362</span> } stbi__zbuf;</div> +<div class="line"><a name="l04363"></a><span class="lineno"> 4363</span> </div> +<div class="line"><a name="l04364"></a><span class="lineno"> 4364</span> stbi_inline <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__zget8(stbi__zbuf *z)</div> +<div class="line"><a name="l04365"></a><span class="lineno"> 4365</span> {</div> +<div class="line"><a name="l04366"></a><span class="lineno"> 4366</span>  <span class="keywordflow">if</span> (z->zbuffer >= z->zbuffer_end)</div> +<div class="line"><a name="l04367"></a><span class="lineno"> 4367</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04368"></a><span class="lineno"> 4368</span>  <span class="keywordflow">return</span> *z->zbuffer++;</div> +<div class="line"><a name="l04369"></a><span class="lineno"> 4369</span> }</div> +<div class="line"><a name="l04370"></a><span class="lineno"> 4370</span> </div> +<div class="line"><a name="l04371"></a><span class="lineno"> 4371</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__fill_bits(stbi__zbuf *z)</div> +<div class="line"><a name="l04372"></a><span class="lineno"> 4372</span> {</div> +<div class="line"><a name="l04373"></a><span class="lineno"> 4373</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l04374"></a><span class="lineno"> 4374</span>  STBI_ASSERT(z->code_buffer < (1U << z->num_bits));</div> +<div class="line"><a name="l04375"></a><span class="lineno"> 4375</span>  z->code_buffer |= (<span class="keywordtype">unsigned</span> int)stbi__zget8(z) << z->num_bits;</div> +<div class="line"><a name="l04376"></a><span class="lineno"> 4376</span>  z->num_bits += 8;</div> +<div class="line"><a name="l04377"></a><span class="lineno"> 4377</span>  } <span class="keywordflow">while</span> (z->num_bits <= 24);</div> +<div class="line"><a name="l04378"></a><span class="lineno"> 4378</span> }</div> +<div class="line"><a name="l04379"></a><span class="lineno"> 4379</span> </div> +<div class="line"><a name="l04380"></a><span class="lineno"> 4380</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> stbi__zreceive(stbi__zbuf *z, <span class="keywordtype">int</span> n)</div> +<div class="line"><a name="l04381"></a><span class="lineno"> 4381</span> {</div> +<div class="line"><a name="l04382"></a><span class="lineno"> 4382</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l04383"></a><span class="lineno"> 4383</span>  <span class="keywordflow">if</span> (z->num_bits < n)</div> +<div class="line"><a name="l04384"></a><span class="lineno"> 4384</span>  stbi__fill_bits(z);</div> +<div class="line"><a name="l04385"></a><span class="lineno"> 4385</span>  k = z->code_buffer & ((1 << n) - 1);</div> +<div class="line"><a name="l04386"></a><span class="lineno"> 4386</span>  z->code_buffer >>= n;</div> +<div class="line"><a name="l04387"></a><span class="lineno"> 4387</span>  z->num_bits -= n;</div> +<div class="line"><a name="l04388"></a><span class="lineno"> 4388</span>  <span class="keywordflow">return</span> k;</div> +<div class="line"><a name="l04389"></a><span class="lineno"> 4389</span> }</div> +<div class="line"><a name="l04390"></a><span class="lineno"> 4390</span> </div> +<div class="line"><a name="l04391"></a><span class="lineno"> 4391</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z)</div> +<div class="line"><a name="l04392"></a><span class="lineno"> 4392</span> {</div> +<div class="line"><a name="l04393"></a><span class="lineno"> 4393</span>  <span class="keywordtype">int</span> b, s, k;</div> +<div class="line"><a name="l04394"></a><span class="lineno"> 4394</span>  <span class="comment">// not resolved by fast table, so compute it the slow way</span></div> +<div class="line"><a name="l04395"></a><span class="lineno"> 4395</span>  <span class="comment">// use jpeg approach, which requires MSbits at top</span></div> +<div class="line"><a name="l04396"></a><span class="lineno"> 4396</span>  k = stbi__bit_reverse(a->code_buffer, 16);</div> +<div class="line"><a name="l04397"></a><span class="lineno"> 4397</span>  <span class="keywordflow">for</span> (s = STBI__ZFAST_BITS + 1;; ++s)</div> +<div class="line"><a name="l04398"></a><span class="lineno"> 4398</span>  <span class="keywordflow">if</span> (k < z->maxcode[s])</div> +<div class="line"><a name="l04399"></a><span class="lineno"> 4399</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04400"></a><span class="lineno"> 4400</span>  <span class="keywordflow">if</span> (s == 16)</div> +<div class="line"><a name="l04401"></a><span class="lineno"> 4401</span>  <span class="keywordflow">return</span> -1; <span class="comment">// invalid code!</span></div> +<div class="line"><a name="l04402"></a><span class="lineno"> 4402</span>  <span class="comment">// code size is s, so:</span></div> +<div class="line"><a name="l04403"></a><span class="lineno"> 4403</span>  b = (k >> (16 - s)) - z->firstcode[s] + z->firstsymbol[s];</div> +<div class="line"><a name="l04404"></a><span class="lineno"> 4404</span>  STBI_ASSERT(z->size[b] == s);</div> +<div class="line"><a name="l04405"></a><span class="lineno"> 4405</span>  a->code_buffer >>= s;</div> +<div class="line"><a name="l04406"></a><span class="lineno"> 4406</span>  a->num_bits -= s;</div> +<div class="line"><a name="l04407"></a><span class="lineno"> 4407</span>  <span class="keywordflow">return</span> z->value[b];</div> +<div class="line"><a name="l04408"></a><span class="lineno"> 4408</span> }</div> +<div class="line"><a name="l04409"></a><span class="lineno"> 4409</span> </div> +<div class="line"><a name="l04410"></a><span class="lineno"> 4410</span> stbi_inline <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z)</div> +<div class="line"><a name="l04411"></a><span class="lineno"> 4411</span> {</div> +<div class="line"><a name="l04412"></a><span class="lineno"> 4412</span>  <span class="keywordtype">int</span> b, s;</div> +<div class="line"><a name="l04413"></a><span class="lineno"> 4413</span>  <span class="keywordflow">if</span> (a->num_bits < 16)</div> +<div class="line"><a name="l04414"></a><span class="lineno"> 4414</span>  stbi__fill_bits(a);</div> +<div class="line"><a name="l04415"></a><span class="lineno"> 4415</span>  b = z->fast[a->code_buffer & STBI__ZFAST_MASK];</div> +<div class="line"><a name="l04416"></a><span class="lineno"> 4416</span>  <span class="keywordflow">if</span> (b) {</div> +<div class="line"><a name="l04417"></a><span class="lineno"> 4417</span>  s = b >> 9;</div> +<div class="line"><a name="l04418"></a><span class="lineno"> 4418</span>  a->code_buffer >>= s;</div> +<div class="line"><a name="l04419"></a><span class="lineno"> 4419</span>  a->num_bits -= s;</div> +<div class="line"><a name="l04420"></a><span class="lineno"> 4420</span>  <span class="keywordflow">return</span> b & 511;</div> +<div class="line"><a name="l04421"></a><span class="lineno"> 4421</span>  }</div> +<div class="line"><a name="l04422"></a><span class="lineno"> 4422</span>  <span class="keywordflow">return</span> stbi__zhuffman_decode_slowpath(a, z);</div> +<div class="line"><a name="l04423"></a><span class="lineno"> 4423</span> }</div> +<div class="line"><a name="l04424"></a><span class="lineno"> 4424</span> </div> +<div class="line"><a name="l04425"></a><span class="lineno"> 4425</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zexpand(stbi__zbuf *z, <span class="keywordtype">char</span> *zout,</div> +<div class="line"><a name="l04426"></a><span class="lineno"> 4426</span>  <span class="keywordtype">int</span> n) <span class="comment">// need to make room for n bytes</span></div> +<div class="line"><a name="l04427"></a><span class="lineno"> 4427</span> {</div> +<div class="line"><a name="l04428"></a><span class="lineno"> 4428</span>  <span class="keywordtype">char</span> *q;</div> +<div class="line"><a name="l04429"></a><span class="lineno"> 4429</span>  <span class="keywordtype">int</span> cur, limit, old_limit;</div> +<div class="line"><a name="l04430"></a><span class="lineno"> 4430</span>  z->zout = zout;</div> +<div class="line"><a name="l04431"></a><span class="lineno"> 4431</span>  <span class="keywordflow">if</span> (!z->z_expandable)</div> +<div class="line"><a name="l04432"></a><span class="lineno"> 4432</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"output buffer limit"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04433"></a><span class="lineno"> 4433</span>  cur = (int)(z->zout - z->zout_start);</div> +<div class="line"><a name="l04434"></a><span class="lineno"> 4434</span>  limit = old_limit = (int)(z->zout_end - z->zout_start);</div> +<div class="line"><a name="l04435"></a><span class="lineno"> 4435</span>  <span class="keywordflow">while</span> (cur + n > limit)</div> +<div class="line"><a name="l04436"></a><span class="lineno"> 4436</span>  limit *= 2;</div> +<div class="line"><a name="l04437"></a><span class="lineno"> 4437</span>  q = (<span class="keywordtype">char</span> *)STBI_REALLOC_SIZED(z->zout_start, old_limit, limit);</div> +<div class="line"><a name="l04438"></a><span class="lineno"> 4438</span>  STBI_NOTUSED(old_limit);</div> +<div class="line"><a name="l04439"></a><span class="lineno"> 4439</span>  <span class="keywordflow">if</span> (q == NULL)</div> +<div class="line"><a name="l04440"></a><span class="lineno"> 4440</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l04441"></a><span class="lineno"> 4441</span>  z->zout_start = q;</div> +<div class="line"><a name="l04442"></a><span class="lineno"> 4442</span>  z->zout = q + cur;</div> +<div class="line"><a name="l04443"></a><span class="lineno"> 4443</span>  z->zout_end = q + limit;</div> +<div class="line"><a name="l04444"></a><span class="lineno"> 4444</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04445"></a><span class="lineno"> 4445</span> }</div> +<div class="line"><a name="l04446"></a><span class="lineno"> 4446</span> </div> +<div class="line"><a name="l04447"></a><span class="lineno"> 4447</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zlength_base[31] = {</div> +<div class="line"><a name="l04448"></a><span class="lineno"> 4448</span>  3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,</div> +<div class="line"><a name="l04449"></a><span class="lineno"> 4449</span>  35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};</div> +<div class="line"><a name="l04450"></a><span class="lineno"> 4450</span> </div> +<div class="line"><a name="l04451"></a><span class="lineno"> 4451</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zlength_extra[31] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1,</div> +<div class="line"><a name="l04452"></a><span class="lineno"> 4452</span>  1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4,</div> +<div class="line"><a name="l04453"></a><span class="lineno"> 4453</span>  4, 4, 5, 5, 5, 5, 0, 0, 0};</div> +<div class="line"><a name="l04454"></a><span class="lineno"> 4454</span> </div> +<div class="line"><a name="l04455"></a><span class="lineno"> 4455</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zdist_base[32] = {</div> +<div class="line"><a name="l04456"></a><span class="lineno"> 4456</span>  1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33,</div> +<div class="line"><a name="l04457"></a><span class="lineno"> 4457</span>  49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537,</div> +<div class="line"><a name="l04458"></a><span class="lineno"> 4458</span>  2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0};</div> +<div class="line"><a name="l04459"></a><span class="lineno"> 4459</span> </div> +<div class="line"><a name="l04460"></a><span class="lineno"> 4460</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__zdist_extra[32] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3,</div> +<div class="line"><a name="l04461"></a><span class="lineno"> 4461</span>  4, 4, 5, 5, 6, 6, 7, 7, 8, 8,</div> +<div class="line"><a name="l04462"></a><span class="lineno"> 4462</span>  9, 9, 10, 10, 11, 11, 12, 12, 13, 13};</div> +<div class="line"><a name="l04463"></a><span class="lineno"> 4463</span> </div> +<div class="line"><a name="l04464"></a><span class="lineno"> 4464</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_huffman_block(stbi__zbuf *a)</div> +<div class="line"><a name="l04465"></a><span class="lineno"> 4465</span> {</div> +<div class="line"><a name="l04466"></a><span class="lineno"> 4466</span>  <span class="keywordtype">char</span> *zout = a->zout;</div> +<div class="line"><a name="l04467"></a><span class="lineno"> 4467</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l04468"></a><span class="lineno"> 4468</span>  <span class="keywordtype">int</span> z = stbi__zhuffman_decode(a, &a->z_length);</div> +<div class="line"><a name="l04469"></a><span class="lineno"> 4469</span>  <span class="keywordflow">if</span> (z < 256) {</div> +<div class="line"><a name="l04470"></a><span class="lineno"> 4470</span>  <span class="keywordflow">if</span> (z < 0)</div> +<div class="line"><a name="l04471"></a><span class="lineno"> 4471</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>,</div> +<div class="line"><a name="l04472"></a><span class="lineno"> 4472</span>  <span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// error in huffman codes</span></div> +<div class="line"><a name="l04473"></a><span class="lineno"> 4473</span>  <span class="keywordflow">if</span> (zout >= a->zout_end) {</div> +<div class="line"><a name="l04474"></a><span class="lineno"> 4474</span>  <span class="keywordflow">if</span> (!stbi__zexpand(a, zout, 1))</div> +<div class="line"><a name="l04475"></a><span class="lineno"> 4475</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04476"></a><span class="lineno"> 4476</span>  zout = a->zout;</div> +<div class="line"><a name="l04477"></a><span class="lineno"> 4477</span>  }</div> +<div class="line"><a name="l04478"></a><span class="lineno"> 4478</span>  *zout++ = (char)z;</div> +<div class="line"><a name="l04479"></a><span class="lineno"> 4479</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04480"></a><span class="lineno"> 4480</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p;</div> +<div class="line"><a name="l04481"></a><span class="lineno"> 4481</span>  <span class="keywordtype">int</span> len, dist;</div> +<div class="line"><a name="l04482"></a><span class="lineno"> 4482</span>  <span class="keywordflow">if</span> (z == 256) {</div> +<div class="line"><a name="l04483"></a><span class="lineno"> 4483</span>  a->zout = zout;</div> +<div class="line"><a name="l04484"></a><span class="lineno"> 4484</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04485"></a><span class="lineno"> 4485</span>  }</div> +<div class="line"><a name="l04486"></a><span class="lineno"> 4486</span>  z -= 257;</div> +<div class="line"><a name="l04487"></a><span class="lineno"> 4487</span>  len = stbi__zlength_base[z];</div> +<div class="line"><a name="l04488"></a><span class="lineno"> 4488</span>  <span class="keywordflow">if</span> (stbi__zlength_extra[z])</div> +<div class="line"><a name="l04489"></a><span class="lineno"> 4489</span>  len += stbi__zreceive(a, stbi__zlength_extra[z]);</div> +<div class="line"><a name="l04490"></a><span class="lineno"> 4490</span>  z = stbi__zhuffman_decode(a, &a->z_distance);</div> +<div class="line"><a name="l04491"></a><span class="lineno"> 4491</span>  <span class="keywordflow">if</span> (z < 0)</div> +<div class="line"><a name="l04492"></a><span class="lineno"> 4492</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad huffman code"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04493"></a><span class="lineno"> 4493</span>  dist = stbi__zdist_base[z];</div> +<div class="line"><a name="l04494"></a><span class="lineno"> 4494</span>  <span class="keywordflow">if</span> (stbi__zdist_extra[z])</div> +<div class="line"><a name="l04495"></a><span class="lineno"> 4495</span>  dist += stbi__zreceive(a, stbi__zdist_extra[z]);</div> +<div class="line"><a name="l04496"></a><span class="lineno"> 4496</span>  <span class="keywordflow">if</span> (zout - a->zout_start < dist)</div> +<div class="line"><a name="l04497"></a><span class="lineno"> 4497</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad dist"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04498"></a><span class="lineno"> 4498</span>  <span class="keywordflow">if</span> (zout + len > a->zout_end) {</div> +<div class="line"><a name="l04499"></a><span class="lineno"> 4499</span>  <span class="keywordflow">if</span> (!stbi__zexpand(a, zout, len))</div> +<div class="line"><a name="l04500"></a><span class="lineno"> 4500</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04501"></a><span class="lineno"> 4501</span>  zout = a->zout;</div> +<div class="line"><a name="l04502"></a><span class="lineno"> 4502</span>  }</div> +<div class="line"><a name="l04503"></a><span class="lineno"> 4503</span>  p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)(zout - dist);</div> +<div class="line"><a name="l04504"></a><span class="lineno"> 4504</span>  <span class="keywordflow">if</span> (dist == 1) { <span class="comment">// run of one byte; common in images.</span></div> +<div class="line"><a name="l04505"></a><span class="lineno"> 4505</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> v = *p;</div> +<div class="line"><a name="l04506"></a><span class="lineno"> 4506</span>  <span class="keywordflow">if</span> (len) {</div> +<div class="line"><a name="l04507"></a><span class="lineno"> 4507</span>  <span class="keywordflow">do</span></div> +<div class="line"><a name="l04508"></a><span class="lineno"> 4508</span>  *zout++ = v;</div> +<div class="line"><a name="l04509"></a><span class="lineno"> 4509</span>  <span class="keywordflow">while</span> (--len);</div> +<div class="line"><a name="l04510"></a><span class="lineno"> 4510</span>  }</div> +<div class="line"><a name="l04511"></a><span class="lineno"> 4511</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04512"></a><span class="lineno"> 4512</span>  <span class="keywordflow">if</span> (len) {</div> +<div class="line"><a name="l04513"></a><span class="lineno"> 4513</span>  <span class="keywordflow">do</span></div> +<div class="line"><a name="l04514"></a><span class="lineno"> 4514</span>  *zout++ = *p++;</div> +<div class="line"><a name="l04515"></a><span class="lineno"> 4515</span>  <span class="keywordflow">while</span> (--len);</div> +<div class="line"><a name="l04516"></a><span class="lineno"> 4516</span>  }</div> +<div class="line"><a name="l04517"></a><span class="lineno"> 4517</span>  }</div> +<div class="line"><a name="l04518"></a><span class="lineno"> 4518</span>  }</div> +<div class="line"><a name="l04519"></a><span class="lineno"> 4519</span>  }</div> +<div class="line"><a name="l04520"></a><span class="lineno"> 4520</span> }</div> +<div class="line"><a name="l04521"></a><span class="lineno"> 4521</span> </div> +<div class="line"><a name="l04522"></a><span class="lineno"> 4522</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__compute_huffman_codes(stbi__zbuf *a)</div> +<div class="line"><a name="l04523"></a><span class="lineno"> 4523</span> {</div> +<div class="line"><a name="l04524"></a><span class="lineno"> 4524</span>  <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> length_dezigzag[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5,</div> +<div class="line"><a name="l04525"></a><span class="lineno"> 4525</span>  11, 4, 12, 3, 13, 2, 14, 1, 15};</div> +<div class="line"><a name="l04526"></a><span class="lineno"> 4526</span>  stbi__zhuffman z_codelength;</div> +<div class="line"><a name="l04527"></a><span class="lineno"> 4527</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> lencodes[286 + 32 + 137]; <span class="comment">// padding for maximum single op</span></div> +<div class="line"><a name="l04528"></a><span class="lineno"> 4528</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> codelength_sizes[19];</div> +<div class="line"><a name="l04529"></a><span class="lineno"> 4529</span>  <span class="keywordtype">int</span> i, n;</div> +<div class="line"><a name="l04530"></a><span class="lineno"> 4530</span> </div> +<div class="line"><a name="l04531"></a><span class="lineno"> 4531</span>  <span class="keywordtype">int</span> hlit = stbi__zreceive(a, 5) + 257;</div> +<div class="line"><a name="l04532"></a><span class="lineno"> 4532</span>  <span class="keywordtype">int</span> hdist = stbi__zreceive(a, 5) + 1;</div> +<div class="line"><a name="l04533"></a><span class="lineno"> 4533</span>  <span class="keywordtype">int</span> hclen = stbi__zreceive(a, 4) + 4;</div> +<div class="line"><a name="l04534"></a><span class="lineno"> 4534</span>  <span class="keywordtype">int</span> ntot = hlit + hdist;</div> +<div class="line"><a name="l04535"></a><span class="lineno"> 4535</span> </div> +<div class="line"><a name="l04536"></a><span class="lineno"> 4536</span>  memset(codelength_sizes, 0, <span class="keyword">sizeof</span>(codelength_sizes));</div> +<div class="line"><a name="l04537"></a><span class="lineno"> 4537</span>  <span class="keywordflow">for</span> (i = 0; i < hclen; ++i) {</div> +<div class="line"><a name="l04538"></a><span class="lineno"> 4538</span>  <span class="keywordtype">int</span> s = stbi__zreceive(a, 3);</div> +<div class="line"><a name="l04539"></a><span class="lineno"> 4539</span>  codelength_sizes[length_dezigzag[i]] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)s;</div> +<div class="line"><a name="l04540"></a><span class="lineno"> 4540</span>  }</div> +<div class="line"><a name="l04541"></a><span class="lineno"> 4541</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19))</div> +<div class="line"><a name="l04542"></a><span class="lineno"> 4542</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04543"></a><span class="lineno"> 4543</span> </div> +<div class="line"><a name="l04544"></a><span class="lineno"> 4544</span>  n = 0;</div> +<div class="line"><a name="l04545"></a><span class="lineno"> 4545</span>  <span class="keywordflow">while</span> (n < ntot) {</div> +<div class="line"><a name="l04546"></a><span class="lineno"> 4546</span>  <span class="keywordtype">int</span> c = stbi__zhuffman_decode(a, &z_codelength);</div> +<div class="line"><a name="l04547"></a><span class="lineno"> 4547</span>  <span class="keywordflow">if</span> (c < 0 || c >= 19)</div> +<div class="line"><a name="l04548"></a><span class="lineno"> 4548</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04549"></a><span class="lineno"> 4549</span>  <span class="keywordflow">if</span> (c < 16)</div> +<div class="line"><a name="l04550"></a><span class="lineno"> 4550</span>  lencodes[n++] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)c;</div> +<div class="line"><a name="l04551"></a><span class="lineno"> 4551</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04552"></a><span class="lineno"> 4552</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> fill = 0;</div> +<div class="line"><a name="l04553"></a><span class="lineno"> 4553</span>  <span class="keywordflow">if</span> (c == 16) {</div> +<div class="line"><a name="l04554"></a><span class="lineno"> 4554</span>  c = stbi__zreceive(a, 2) + 3;</div> +<div class="line"><a name="l04555"></a><span class="lineno"> 4555</span>  <span class="keywordflow">if</span> (n == 0)</div> +<div class="line"><a name="l04556"></a><span class="lineno"> 4556</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04557"></a><span class="lineno"> 4557</span>  fill = lencodes[n - 1];</div> +<div class="line"><a name="l04558"></a><span class="lineno"> 4558</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (c == 17)</div> +<div class="line"><a name="l04559"></a><span class="lineno"> 4559</span>  c = stbi__zreceive(a, 3) + 3;</div> +<div class="line"><a name="l04560"></a><span class="lineno"> 4560</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04561"></a><span class="lineno"> 4561</span>  STBI_ASSERT(c == 18);</div> +<div class="line"><a name="l04562"></a><span class="lineno"> 4562</span>  c = stbi__zreceive(a, 7) + 11;</div> +<div class="line"><a name="l04563"></a><span class="lineno"> 4563</span>  }</div> +<div class="line"><a name="l04564"></a><span class="lineno"> 4564</span>  <span class="keywordflow">if</span> (ntot - n < c)</div> +<div class="line"><a name="l04565"></a><span class="lineno"> 4565</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04566"></a><span class="lineno"> 4566</span>  memset(lencodes + n, fill, c);</div> +<div class="line"><a name="l04567"></a><span class="lineno"> 4567</span>  n += c;</div> +<div class="line"><a name="l04568"></a><span class="lineno"> 4568</span>  }</div> +<div class="line"><a name="l04569"></a><span class="lineno"> 4569</span>  }</div> +<div class="line"><a name="l04570"></a><span class="lineno"> 4570</span>  <span class="keywordflow">if</span> (n != ntot)</div> +<div class="line"><a name="l04571"></a><span class="lineno"> 4571</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad codelengths"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04572"></a><span class="lineno"> 4572</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit))</div> +<div class="line"><a name="l04573"></a><span class="lineno"> 4573</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04574"></a><span class="lineno"> 4574</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_distance, lencodes + hlit, hdist))</div> +<div class="line"><a name="l04575"></a><span class="lineno"> 4575</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04576"></a><span class="lineno"> 4576</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04577"></a><span class="lineno"> 4577</span> }</div> +<div class="line"><a name="l04578"></a><span class="lineno"> 4578</span> </div> +<div class="line"><a name="l04579"></a><span class="lineno"> 4579</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_uncompressed_block(stbi__zbuf *a)</div> +<div class="line"><a name="l04580"></a><span class="lineno"> 4580</span> {</div> +<div class="line"><a name="l04581"></a><span class="lineno"> 4581</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> header[4];</div> +<div class="line"><a name="l04582"></a><span class="lineno"> 4582</span>  <span class="keywordtype">int</span> len, nlen, k;</div> +<div class="line"><a name="l04583"></a><span class="lineno"> 4583</span>  <span class="keywordflow">if</span> (a->num_bits & 7)</div> +<div class="line"><a name="l04584"></a><span class="lineno"> 4584</span>  stbi__zreceive(a, a->num_bits & 7); <span class="comment">// discard</span></div> +<div class="line"><a name="l04585"></a><span class="lineno"> 4585</span>  <span class="comment">// drain the bit-packed data into header</span></div> +<div class="line"><a name="l04586"></a><span class="lineno"> 4586</span>  k = 0;</div> +<div class="line"><a name="l04587"></a><span class="lineno"> 4587</span>  <span class="keywordflow">while</span> (a->num_bits > 0) {</div> +<div class="line"><a name="l04588"></a><span class="lineno"> 4588</span>  header[k++] =</div> +<div class="line"><a name="l04589"></a><span class="lineno"> 4589</span>  (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)(a->code_buffer & 255); <span class="comment">// suppress MSVC run-time check</span></div> +<div class="line"><a name="l04590"></a><span class="lineno"> 4590</span>  a->code_buffer >>= 8;</div> +<div class="line"><a name="l04591"></a><span class="lineno"> 4591</span>  a->num_bits -= 8;</div> +<div class="line"><a name="l04592"></a><span class="lineno"> 4592</span>  }</div> +<div class="line"><a name="l04593"></a><span class="lineno"> 4593</span>  STBI_ASSERT(a->num_bits == 0);</div> +<div class="line"><a name="l04594"></a><span class="lineno"> 4594</span>  <span class="comment">// now fill header the normal way</span></div> +<div class="line"><a name="l04595"></a><span class="lineno"> 4595</span>  <span class="keywordflow">while</span> (k < 4)</div> +<div class="line"><a name="l04596"></a><span class="lineno"> 4596</span>  header[k++] = stbi__zget8(a);</div> +<div class="line"><a name="l04597"></a><span class="lineno"> 4597</span>  len = header[1] * 256 + header[0];</div> +<div class="line"><a name="l04598"></a><span class="lineno"> 4598</span>  nlen = header[3] * 256 + header[2];</div> +<div class="line"><a name="l04599"></a><span class="lineno"> 4599</span>  <span class="keywordflow">if</span> (nlen != (len ^ 0xffff))</div> +<div class="line"><a name="l04600"></a><span class="lineno"> 4600</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"zlib corrupt"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04601"></a><span class="lineno"> 4601</span>  <span class="keywordflow">if</span> (a->zbuffer + len > a->zbuffer_end)</div> +<div class="line"><a name="l04602"></a><span class="lineno"> 4602</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"read past buffer"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04603"></a><span class="lineno"> 4603</span>  <span class="keywordflow">if</span> (a->zout + len > a->zout_end)</div> +<div class="line"><a name="l04604"></a><span class="lineno"> 4604</span>  <span class="keywordflow">if</span> (!stbi__zexpand(a, a->zout, len))</div> +<div class="line"><a name="l04605"></a><span class="lineno"> 4605</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04606"></a><span class="lineno"> 4606</span>  memcpy(a->zout, a->zbuffer, len);</div> +<div class="line"><a name="l04607"></a><span class="lineno"> 4607</span>  a->zbuffer += len;</div> +<div class="line"><a name="l04608"></a><span class="lineno"> 4608</span>  a->zout += len;</div> +<div class="line"><a name="l04609"></a><span class="lineno"> 4609</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04610"></a><span class="lineno"> 4610</span> }</div> +<div class="line"><a name="l04611"></a><span class="lineno"> 4611</span> </div> +<div class="line"><a name="l04612"></a><span class="lineno"> 4612</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_zlib_header(stbi__zbuf *a)</div> +<div class="line"><a name="l04613"></a><span class="lineno"> 4613</span> {</div> +<div class="line"><a name="l04614"></a><span class="lineno"> 4614</span>  <span class="keywordtype">int</span> cmf = stbi__zget8(a);</div> +<div class="line"><a name="l04615"></a><span class="lineno"> 4615</span>  <span class="keywordtype">int</span> cm = cmf & 15;</div> +<div class="line"><a name="l04616"></a><span class="lineno"> 4616</span>  <span class="comment">/* int cinfo = cmf >> 4; */</span></div> +<div class="line"><a name="l04617"></a><span class="lineno"> 4617</span>  <span class="keywordtype">int</span> flg = stbi__zget8(a);</div> +<div class="line"><a name="l04618"></a><span class="lineno"> 4618</span>  <span class="keywordflow">if</span> ((cmf * 256 + flg) % 31 != 0)</div> +<div class="line"><a name="l04619"></a><span class="lineno"> 4619</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad zlib header"</span>, <span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// zlib spec</span></div> +<div class="line"><a name="l04620"></a><span class="lineno"> 4620</span>  <span class="keywordflow">if</span> (flg & 32)</div> +<div class="line"><a name="l04621"></a><span class="lineno"> 4621</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no preset dict"</span>,</div> +<div class="line"><a name="l04622"></a><span class="lineno"> 4622</span>  <span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// preset dictionary not allowed in png</span></div> +<div class="line"><a name="l04623"></a><span class="lineno"> 4623</span>  <span class="keywordflow">if</span> (cm != 8)</div> +<div class="line"><a name="l04624"></a><span class="lineno"> 4624</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad compression"</span>,</div> +<div class="line"><a name="l04625"></a><span class="lineno"> 4625</span>  <span class="stringliteral">"Corrupt PNG"</span>); <span class="comment">// DEFLATE required for png</span></div> +<div class="line"><a name="l04626"></a><span class="lineno"> 4626</span>  <span class="comment">// window = 1 << (8 + cinfo)... but who cares, we fully buffer output</span></div> +<div class="line"><a name="l04627"></a><span class="lineno"> 4627</span>  <span class="keywordflow">return</span> 1;</div> <div class="line"><a name="l04628"></a><span class="lineno"> 4628</span> }</div> <div class="line"><a name="l04629"></a><span class="lineno"> 4629</span> </div> -<div class="line"><a name="l04630"></a><span class="lineno"> 4630</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a23525ef2b882f3de426b47ecf8d9151b">stbi_convert_iphone_png_to_rgb</a>(<span class="keywordtype">int</span> flag_true_if_should_convert)</div> -<div class="line"><a name="l04631"></a><span class="lineno"> 4631</span> {</div> -<div class="line"><a name="l04632"></a><span class="lineno"> 4632</span>  stbi__de_iphone_flag = flag_true_if_should_convert;</div> -<div class="line"><a name="l04633"></a><span class="lineno"> 4633</span> }</div> -<div class="line"><a name="l04634"></a><span class="lineno"> 4634</span> </div> -<div class="line"><a name="l04635"></a><span class="lineno"> 4635</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__de_iphone(stbi__png *z)</div> -<div class="line"><a name="l04636"></a><span class="lineno"> 4636</span> {</div> -<div class="line"><a name="l04637"></a><span class="lineno"> 4637</span>  stbi__context *s = z->s;</div> -<div class="line"><a name="l04638"></a><span class="lineno"> 4638</span>  stbi__uint32 i, pixel_count = s->img_x * s->img_y;</div> -<div class="line"><a name="l04639"></a><span class="lineno"> 4639</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = z->out;</div> -<div class="line"><a name="l04640"></a><span class="lineno"> 4640</span> </div> -<div class="line"><a name="l04641"></a><span class="lineno"> 4641</span>  <span class="keywordflow">if</span> (s->img_out_n == 3) { <span class="comment">// convert bgr to rgb</span></div> -<div class="line"><a name="l04642"></a><span class="lineno"> 4642</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04643"></a><span class="lineno"> 4643</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t = p[0];</div> -<div class="line"><a name="l04644"></a><span class="lineno"> 4644</span>  p[0] = p[2];</div> -<div class="line"><a name="l04645"></a><span class="lineno"> 4645</span>  p[2] = t;</div> -<div class="line"><a name="l04646"></a><span class="lineno"> 4646</span>  p += 3;</div> -<div class="line"><a name="l04647"></a><span class="lineno"> 4647</span>  }</div> -<div class="line"><a name="l04648"></a><span class="lineno"> 4648</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04649"></a><span class="lineno"> 4649</span>  STBI_ASSERT(s->img_out_n == 4);</div> -<div class="line"><a name="l04650"></a><span class="lineno"> 4650</span>  <span class="keywordflow">if</span> (stbi__unpremultiply_on_load) {</div> -<div class="line"><a name="l04651"></a><span class="lineno"> 4651</span>  <span class="comment">// convert bgr to rgb and unpremultiply</span></div> -<div class="line"><a name="l04652"></a><span class="lineno"> 4652</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04653"></a><span class="lineno"> 4653</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> a = p[3];</div> -<div class="line"><a name="l04654"></a><span class="lineno"> 4654</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t = p[0];</div> -<div class="line"><a name="l04655"></a><span class="lineno"> 4655</span>  <span class="keywordflow">if</span> (a) {</div> -<div class="line"><a name="l04656"></a><span class="lineno"> 4656</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> half = a / 2;</div> -<div class="line"><a name="l04657"></a><span class="lineno"> 4657</span>  p[0] = (p[2] * 255 + half) / a;</div> -<div class="line"><a name="l04658"></a><span class="lineno"> 4658</span>  p[1] = (p[1] * 255 + half) / a;</div> -<div class="line"><a name="l04659"></a><span class="lineno"> 4659</span>  p[2] = ( t * 255 + half) / a;</div> -<div class="line"><a name="l04660"></a><span class="lineno"> 4660</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04661"></a><span class="lineno"> 4661</span>  p[0] = p[2];</div> -<div class="line"><a name="l04662"></a><span class="lineno"> 4662</span>  p[2] = t;</div> -<div class="line"><a name="l04663"></a><span class="lineno"> 4663</span>  }</div> -<div class="line"><a name="l04664"></a><span class="lineno"> 4664</span>  p += 4;</div> -<div class="line"><a name="l04665"></a><span class="lineno"> 4665</span>  }</div> -<div class="line"><a name="l04666"></a><span class="lineno"> 4666</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04667"></a><span class="lineno"> 4667</span>  <span class="comment">// convert bgr to rgb</span></div> -<div class="line"><a name="l04668"></a><span class="lineno"> 4668</span>  <span class="keywordflow">for</span> (i=0; i < pixel_count; ++i) {</div> -<div class="line"><a name="l04669"></a><span class="lineno"> 4669</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t = p[0];</div> -<div class="line"><a name="l04670"></a><span class="lineno"> 4670</span>  p[0] = p[2];</div> -<div class="line"><a name="l04671"></a><span class="lineno"> 4671</span>  p[2] = t;</div> -<div class="line"><a name="l04672"></a><span class="lineno"> 4672</span>  p += 4;</div> -<div class="line"><a name="l04673"></a><span class="lineno"> 4673</span>  }</div> -<div class="line"><a name="l04674"></a><span class="lineno"> 4674</span>  }</div> -<div class="line"><a name="l04675"></a><span class="lineno"> 4675</span>  }</div> -<div class="line"><a name="l04676"></a><span class="lineno"> 4676</span> }</div> -<div class="line"><a name="l04677"></a><span class="lineno"> 4677</span> </div> -<div class="line"><a name="l04678"></a><span class="lineno"> 4678</span> <span class="preprocessor">#define STBI__PNG_TYPE(a,b,c,d) (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))</span></div> -<div class="line"><a name="l04679"></a><span class="lineno"> 4679</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l04680"></a><span class="lineno"> 4680</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_png_file(stbi__png *z, <span class="keywordtype">int</span> scan, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l04681"></a><span class="lineno"> 4681</span> {</div> -<div class="line"><a name="l04682"></a><span class="lineno"> 4682</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> palette[1024], pal_img_n=0;</div> -<div class="line"><a name="l04683"></a><span class="lineno"> 4683</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> has_trans=0, tc[3];</div> -<div class="line"><a name="l04684"></a><span class="lineno"> 4684</span>  stbi__uint16 tc16[3];</div> -<div class="line"><a name="l04685"></a><span class="lineno"> 4685</span>  stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0;</div> -<div class="line"><a name="l04686"></a><span class="lineno"> 4686</span>  <span class="keywordtype">int</span> first=1,k,interlace=0, color=0, is_iphone=0;</div> -<div class="line"><a name="l04687"></a><span class="lineno"> 4687</span>  stbi__context *s = z->s;</div> -<div class="line"><a name="l04688"></a><span class="lineno"> 4688</span> </div> -<div class="line"><a name="l04689"></a><span class="lineno"> 4689</span>  z->expanded = NULL;</div> -<div class="line"><a name="l04690"></a><span class="lineno"> 4690</span>  z->idata = NULL;</div> -<div class="line"><a name="l04691"></a><span class="lineno"> 4691</span>  z->out = NULL;</div> -<div class="line"><a name="l04692"></a><span class="lineno"> 4692</span> </div> -<div class="line"><a name="l04693"></a><span class="lineno"> 4693</span>  <span class="keywordflow">if</span> (!stbi__check_png_header(s)) <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04630"></a><span class="lineno"> 4630</span> <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__zdefault_length[288] = {</div> +<div class="line"><a name="l04631"></a><span class="lineno"> 4631</span>  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,</div> +<div class="line"><a name="l04632"></a><span class="lineno"> 4632</span>  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,</div> +<div class="line"><a name="l04633"></a><span class="lineno"> 4633</span>  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,</div> +<div class="line"><a name="l04634"></a><span class="lineno"> 4634</span>  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,</div> +<div class="line"><a name="l04635"></a><span class="lineno"> 4635</span>  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,</div> +<div class="line"><a name="l04636"></a><span class="lineno"> 4636</span>  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,</div> +<div class="line"><a name="l04637"></a><span class="lineno"> 4637</span>  9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,</div> +<div class="line"><a name="l04638"></a><span class="lineno"> 4638</span>  9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,</div> +<div class="line"><a name="l04639"></a><span class="lineno"> 4639</span>  9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,</div> +<div class="line"><a name="l04640"></a><span class="lineno"> 4640</span>  9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,</div> +<div class="line"><a name="l04641"></a><span class="lineno"> 4641</span>  9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7,</div> +<div class="line"><a name="l04642"></a><span class="lineno"> 4642</span>  7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8};</div> +<div class="line"><a name="l04643"></a><span class="lineno"> 4643</span> <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__zdefault_distance[32] = {</div> +<div class="line"><a name="l04644"></a><span class="lineno"> 4644</span>  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,</div> +<div class="line"><a name="l04645"></a><span class="lineno"> 4645</span>  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5};</div> +<div class="line"><a name="l04646"></a><span class="lineno"> 4646</span> <span class="comment">/*</span></div> +<div class="line"><a name="l04647"></a><span class="lineno"> 4647</span> <span class="comment">Init algorithm:</span></div> +<div class="line"><a name="l04648"></a><span class="lineno"> 4648</span> <span class="comment">{</span></div> +<div class="line"><a name="l04649"></a><span class="lineno"> 4649</span> <span class="comment"> int i; // use <= to match clearly with spec</span></div> +<div class="line"><a name="l04650"></a><span class="lineno"> 4650</span> <span class="comment"> for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8;</span></div> +<div class="line"><a name="l04651"></a><span class="lineno"> 4651</span> <span class="comment"> for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9;</span></div> +<div class="line"><a name="l04652"></a><span class="lineno"> 4652</span> <span class="comment"> for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7;</span></div> +<div class="line"><a name="l04653"></a><span class="lineno"> 4653</span> <span class="comment"> for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8;</span></div> +<div class="line"><a name="l04654"></a><span class="lineno"> 4654</span> <span class="comment"></span></div> +<div class="line"><a name="l04655"></a><span class="lineno"> 4655</span> <span class="comment"> for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5;</span></div> +<div class="line"><a name="l04656"></a><span class="lineno"> 4656</span> <span class="comment">}</span></div> +<div class="line"><a name="l04657"></a><span class="lineno"> 4657</span> <span class="comment">*/</span></div> +<div class="line"><a name="l04658"></a><span class="lineno"> 4658</span> </div> +<div class="line"><a name="l04659"></a><span class="lineno"> 4659</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_zlib(stbi__zbuf *a, <span class="keywordtype">int</span> parse_header)</div> +<div class="line"><a name="l04660"></a><span class="lineno"> 4660</span> {</div> +<div class="line"><a name="l04661"></a><span class="lineno"> 4661</span>  <span class="keywordtype">int</span> <span class="keyword">final</span>, type;</div> +<div class="line"><a name="l04662"></a><span class="lineno"> 4662</span>  <span class="keywordflow">if</span> (parse_header)</div> +<div class="line"><a name="l04663"></a><span class="lineno"> 4663</span>  <span class="keywordflow">if</span> (!stbi__parse_zlib_header(a))</div> +<div class="line"><a name="l04664"></a><span class="lineno"> 4664</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04665"></a><span class="lineno"> 4665</span>  a->num_bits = 0;</div> +<div class="line"><a name="l04666"></a><span class="lineno"> 4666</span>  a->code_buffer = 0;</div> +<div class="line"><a name="l04667"></a><span class="lineno"> 4667</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l04668"></a><span class="lineno"> 4668</span>  <span class="keyword">final</span> = stbi__zreceive(a, 1);</div> +<div class="line"><a name="l04669"></a><span class="lineno"> 4669</span>  type = stbi__zreceive(a, 2);</div> +<div class="line"><a name="l04670"></a><span class="lineno"> 4670</span>  <span class="keywordflow">if</span> (type == 0) {</div> +<div class="line"><a name="l04671"></a><span class="lineno"> 4671</span>  <span class="keywordflow">if</span> (!stbi__parse_uncompressed_block(a))</div> +<div class="line"><a name="l04672"></a><span class="lineno"> 4672</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04673"></a><span class="lineno"> 4673</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == 3) {</div> +<div class="line"><a name="l04674"></a><span class="lineno"> 4674</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04675"></a><span class="lineno"> 4675</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04676"></a><span class="lineno"> 4676</span>  <span class="keywordflow">if</span> (type == 1) {</div> +<div class="line"><a name="l04677"></a><span class="lineno"> 4677</span>  <span class="comment">// use fixed code lengths</span></div> +<div class="line"><a name="l04678"></a><span class="lineno"> 4678</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_length, stbi__zdefault_length,</div> +<div class="line"><a name="l04679"></a><span class="lineno"> 4679</span>  288))</div> +<div class="line"><a name="l04680"></a><span class="lineno"> 4680</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04681"></a><span class="lineno"> 4681</span>  <span class="keywordflow">if</span> (!stbi__zbuild_huffman(&a->z_distance,</div> +<div class="line"><a name="l04682"></a><span class="lineno"> 4682</span>  stbi__zdefault_distance, 32))</div> +<div class="line"><a name="l04683"></a><span class="lineno"> 4683</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04684"></a><span class="lineno"> 4684</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04685"></a><span class="lineno"> 4685</span>  <span class="keywordflow">if</span> (!stbi__compute_huffman_codes(a))</div> +<div class="line"><a name="l04686"></a><span class="lineno"> 4686</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04687"></a><span class="lineno"> 4687</span>  }</div> +<div class="line"><a name="l04688"></a><span class="lineno"> 4688</span>  <span class="keywordflow">if</span> (!stbi__parse_huffman_block(a))</div> +<div class="line"><a name="l04689"></a><span class="lineno"> 4689</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l04690"></a><span class="lineno"> 4690</span>  }</div> +<div class="line"><a name="l04691"></a><span class="lineno"> 4691</span>  } <span class="keywordflow">while</span> (!<span class="keyword">final</span>);</div> +<div class="line"><a name="l04692"></a><span class="lineno"> 4692</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04693"></a><span class="lineno"> 4693</span> }</div> <div class="line"><a name="l04694"></a><span class="lineno"> 4694</span> </div> -<div class="line"><a name="l04695"></a><span class="lineno"> 4695</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_type) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04696"></a><span class="lineno"> 4696</span> </div> -<div class="line"><a name="l04697"></a><span class="lineno"> 4697</span>  <span class="keywordflow">for</span> (;;) {</div> -<div class="line"><a name="l04698"></a><span class="lineno"> 4698</span>  stbi__pngchunk c = stbi__get_chunk_header(s);</div> -<div class="line"><a name="l04699"></a><span class="lineno"> 4699</span>  <span class="keywordflow">switch</span> (c.type) {</div> -<div class="line"><a name="l04700"></a><span class="lineno"> 4700</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'C'</span>,<span class="charliteral">'g'</span>,<span class="charliteral">'B'</span>,<span class="charliteral">'I'</span>):</div> -<div class="line"><a name="l04701"></a><span class="lineno"> 4701</span>  is_iphone = 1;</div> -<div class="line"><a name="l04702"></a><span class="lineno"> 4702</span>  stbi__skip(s, c.length);</div> -<div class="line"><a name="l04703"></a><span class="lineno"> 4703</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04704"></a><span class="lineno"> 4704</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'I'</span>,<span class="charliteral">'H'</span>,<span class="charliteral">'D'</span>,<span class="charliteral">'R'</span>): {</div> -<div class="line"><a name="l04705"></a><span class="lineno"> 4705</span>  <span class="keywordtype">int</span> comp,filter;</div> -<div class="line"><a name="l04706"></a><span class="lineno"> 4706</span>  <span class="keywordflow">if</span> (!first) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"multiple IHDR"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04707"></a><span class="lineno"> 4707</span>  first = 0;</div> -<div class="line"><a name="l04708"></a><span class="lineno"> 4708</span>  <span class="keywordflow">if</span> (c.length != 13) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad IHDR len"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04709"></a><span class="lineno"> 4709</span>  s->img_x = stbi__get32be(s); <span class="keywordflow">if</span> (s->img_x > (1 << 24)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>,<span class="stringliteral">"Very large image (corrupt?)"</span>);</div> -<div class="line"><a name="l04710"></a><span class="lineno"> 4710</span>  s->img_y = stbi__get32be(s); <span class="keywordflow">if</span> (s->img_y > (1 << 24)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>,<span class="stringliteral">"Very large image (corrupt?)"</span>);</div> -<div class="line"><a name="l04711"></a><span class="lineno"> 4711</span>  z->depth = stbi__get8(s); <span class="keywordflow">if</span> (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"1/2/4/8/16-bit only"</span>,<span class="stringliteral">"PNG not supported: 1/2/4/8/16-bit only"</span>);</div> -<div class="line"><a name="l04712"></a><span class="lineno"> 4712</span>  color = stbi__get8(s); <span class="keywordflow">if</span> (color > 6) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad ctype"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04713"></a><span class="lineno"> 4713</span>  <span class="keywordflow">if</span> (color == 3 && z->depth == 16) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad ctype"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04714"></a><span class="lineno"> 4714</span>  <span class="keywordflow">if</span> (color == 3) pal_img_n = 3; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (color & 1) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad ctype"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04715"></a><span class="lineno"> 4715</span>  comp = stbi__get8(s); <span class="keywordflow">if</span> (comp) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad comp method"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04716"></a><span class="lineno"> 4716</span>  filter= stbi__get8(s); <span class="keywordflow">if</span> (filter) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad filter method"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04717"></a><span class="lineno"> 4717</span>  interlace = stbi__get8(s); <span class="keywordflow">if</span> (interlace>1) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad interlace method"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04718"></a><span class="lineno"> 4718</span>  <span class="keywordflow">if</span> (!s->img_x || !s->img_y) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"0-pixel image"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04719"></a><span class="lineno"> 4719</span>  <span class="keywordflow">if</span> (!pal_img_n) {</div> -<div class="line"><a name="l04720"></a><span class="lineno"> 4720</span>  s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0);</div> -<div class="line"><a name="l04721"></a><span class="lineno"> 4721</span>  <span class="keywordflow">if</span> ((1 << 30) / s->img_x / s->img_n < s->img_y) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Image too large to decode"</span>);</div> -<div class="line"><a name="l04722"></a><span class="lineno"> 4722</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_header) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04723"></a><span class="lineno"> 4723</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04724"></a><span class="lineno"> 4724</span>  <span class="comment">// if paletted, then pal_n is our final components, and</span></div> -<div class="line"><a name="l04725"></a><span class="lineno"> 4725</span>  <span class="comment">// img_n is # components to decompress/filter.</span></div> -<div class="line"><a name="l04726"></a><span class="lineno"> 4726</span>  s->img_n = 1;</div> -<div class="line"><a name="l04727"></a><span class="lineno"> 4727</span>  <span class="keywordflow">if</span> ((1 << 30) / s->img_x / 4 < s->img_y) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04728"></a><span class="lineno"> 4728</span>  <span class="comment">// if SCAN_header, have to scan to see if we have a tRNS</span></div> -<div class="line"><a name="l04729"></a><span class="lineno"> 4729</span>  }</div> -<div class="line"><a name="l04730"></a><span class="lineno"> 4730</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04731"></a><span class="lineno"> 4731</span>  }</div> -<div class="line"><a name="l04732"></a><span class="lineno"> 4732</span> </div> -<div class="line"><a name="l04733"></a><span class="lineno"> 4733</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'P'</span>,<span class="charliteral">'L'</span>,<span class="charliteral">'T'</span>,<span class="charliteral">'E'</span>): {</div> -<div class="line"><a name="l04734"></a><span class="lineno"> 4734</span>  <span class="keywordflow">if</span> (first) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04735"></a><span class="lineno"> 4735</span>  <span class="keywordflow">if</span> (c.length > 256*3) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"invalid PLTE"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04736"></a><span class="lineno"> 4736</span>  pal_len = c.length / 3;</div> -<div class="line"><a name="l04737"></a><span class="lineno"> 4737</span>  <span class="keywordflow">if</span> (pal_len * 3 != c.length) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"invalid PLTE"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04738"></a><span class="lineno"> 4738</span>  <span class="keywordflow">for</span> (i=0; i < pal_len; ++i) {</div> -<div class="line"><a name="l04739"></a><span class="lineno"> 4739</span>  palette[i*4+0] = stbi__get8(s);</div> -<div class="line"><a name="l04740"></a><span class="lineno"> 4740</span>  palette[i*4+1] = stbi__get8(s);</div> -<div class="line"><a name="l04741"></a><span class="lineno"> 4741</span>  palette[i*4+2] = stbi__get8(s);</div> -<div class="line"><a name="l04742"></a><span class="lineno"> 4742</span>  palette[i*4+3] = 255;</div> -<div class="line"><a name="l04743"></a><span class="lineno"> 4743</span>  }</div> -<div class="line"><a name="l04744"></a><span class="lineno"> 4744</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04745"></a><span class="lineno"> 4745</span>  }</div> -<div class="line"><a name="l04746"></a><span class="lineno"> 4746</span> </div> -<div class="line"><a name="l04747"></a><span class="lineno"> 4747</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'t'</span>,<span class="charliteral">'R'</span>,<span class="charliteral">'N'</span>,<span class="charliteral">'S'</span>): {</div> -<div class="line"><a name="l04748"></a><span class="lineno"> 4748</span>  <span class="keywordflow">if</span> (first) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04749"></a><span class="lineno"> 4749</span>  <span class="keywordflow">if</span> (z->idata) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"tRNS after IDAT"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04750"></a><span class="lineno"> 4750</span>  <span class="keywordflow">if</span> (pal_img_n) {</div> -<div class="line"><a name="l04751"></a><span class="lineno"> 4751</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_header) { s->img_n = 4; <span class="keywordflow">return</span> 1; }</div> -<div class="line"><a name="l04752"></a><span class="lineno"> 4752</span>  <span class="keywordflow">if</span> (pal_len == 0) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"tRNS before PLTE"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04753"></a><span class="lineno"> 4753</span>  <span class="keywordflow">if</span> (c.length > pal_len) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad tRNS len"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04754"></a><span class="lineno"> 4754</span>  pal_img_n = 4;</div> -<div class="line"><a name="l04755"></a><span class="lineno"> 4755</span>  <span class="keywordflow">for</span> (i=0; i < c.length; ++i)</div> -<div class="line"><a name="l04756"></a><span class="lineno"> 4756</span>  palette[i*4+3] = stbi__get8(s);</div> -<div class="line"><a name="l04757"></a><span class="lineno"> 4757</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04758"></a><span class="lineno"> 4758</span>  <span class="keywordflow">if</span> (!(s->img_n & 1)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"tRNS with alpha"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04759"></a><span class="lineno"> 4759</span>  <span class="keywordflow">if</span> (c.length != (stbi__uint32) s->img_n*2) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad tRNS len"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04760"></a><span class="lineno"> 4760</span>  has_trans = 1;</div> -<div class="line"><a name="l04761"></a><span class="lineno"> 4761</span>  <span class="keywordflow">if</span> (z->depth == 16) {</div> -<div class="line"><a name="l04762"></a><span class="lineno"> 4762</span>  <span class="keywordflow">for</span> (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); <span class="comment">// copy the values as-is</span></div> -<div class="line"><a name="l04763"></a><span class="lineno"> 4763</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04764"></a><span class="lineno"> 4764</span>  <span class="keywordflow">for</span> (k = 0; k < s->img_n; ++k) tc[k] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; <span class="comment">// non 8-bit images will be larger</span></div> -<div class="line"><a name="l04765"></a><span class="lineno"> 4765</span>  }</div> -<div class="line"><a name="l04766"></a><span class="lineno"> 4766</span>  }</div> -<div class="line"><a name="l04767"></a><span class="lineno"> 4767</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04768"></a><span class="lineno"> 4768</span>  }</div> -<div class="line"><a name="l04769"></a><span class="lineno"> 4769</span> </div> -<div class="line"><a name="l04770"></a><span class="lineno"> 4770</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'I'</span>,<span class="charliteral">'D'</span>,<span class="charliteral">'A'</span>,<span class="charliteral">'T'</span>): {</div> -<div class="line"><a name="l04771"></a><span class="lineno"> 4771</span>  <span class="keywordflow">if</span> (first) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04772"></a><span class="lineno"> 4772</span>  <span class="keywordflow">if</span> (pal_img_n && !pal_len) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no PLTE"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04773"></a><span class="lineno"> 4773</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_header) { s->img_n = pal_img_n; <span class="keywordflow">return</span> 1; }</div> -<div class="line"><a name="l04774"></a><span class="lineno"> 4774</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>)(ioff + c.length) < (<span class="keywordtype">int</span>)ioff) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04775"></a><span class="lineno"> 4775</span>  <span class="keywordflow">if</span> (ioff + c.length > idata_limit) {</div> -<div class="line"><a name="l04776"></a><span class="lineno"> 4776</span>  stbi__uint32 idata_limit_old = idata_limit;</div> -<div class="line"><a name="l04777"></a><span class="lineno"> 4777</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p;</div> -<div class="line"><a name="l04778"></a><span class="lineno"> 4778</span>  <span class="keywordflow">if</span> (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096;</div> -<div class="line"><a name="l04779"></a><span class="lineno"> 4779</span>  <span class="keywordflow">while</span> (ioff + c.length > idata_limit)</div> -<div class="line"><a name="l04780"></a><span class="lineno"> 4780</span>  idata_limit *= 2;</div> -<div class="line"><a name="l04781"></a><span class="lineno"> 4781</span>  STBI_NOTUSED(idata_limit_old);</div> -<div class="line"><a name="l04782"></a><span class="lineno"> 4782</span>  p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); <span class="keywordflow">if</span> (p == NULL) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l04783"></a><span class="lineno"> 4783</span>  z->idata = p;</div> -<div class="line"><a name="l04784"></a><span class="lineno"> 4784</span>  }</div> -<div class="line"><a name="l04785"></a><span class="lineno"> 4785</span>  <span class="keywordflow">if</span> (!stbi__getn(s, z->idata+ioff,c.length)) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofdata"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04786"></a><span class="lineno"> 4786</span>  ioff += c.length;</div> -<div class="line"><a name="l04787"></a><span class="lineno"> 4787</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04788"></a><span class="lineno"> 4788</span>  }</div> -<div class="line"><a name="l04789"></a><span class="lineno"> 4789</span> </div> -<div class="line"><a name="l04790"></a><span class="lineno"> 4790</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'I'</span>,<span class="charliteral">'E'</span>,<span class="charliteral">'N'</span>,<span class="charliteral">'D'</span>): {</div> -<div class="line"><a name="l04791"></a><span class="lineno"> 4791</span>  stbi__uint32 raw_len, bpl;</div> -<div class="line"><a name="l04792"></a><span class="lineno"> 4792</span>  <span class="keywordflow">if</span> (first) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04793"></a><span class="lineno"> 4793</span>  <span class="keywordflow">if</span> (scan != STBI__SCAN_load) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04794"></a><span class="lineno"> 4794</span>  <span class="keywordflow">if</span> (z->idata == NULL) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no IDAT"</span>,<span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04795"></a><span class="lineno"> 4795</span>  <span class="comment">// initial guess for decoded data size to avoid unnecessary reallocs</span></div> -<div class="line"><a name="l04796"></a><span class="lineno"> 4796</span>  bpl = (s->img_x * z->depth + 7) / 8; <span class="comment">// bytes per line, per component</span></div> -<div class="line"><a name="l04797"></a><span class="lineno"> 4797</span>  raw_len = bpl * s->img_y * s->img_n <span class="comment">/* pixels */</span> + s->img_y <span class="comment">/* filter mode per row */</span>;</div> -<div class="line"><a name="l04798"></a><span class="lineno"> 4798</span>  z->expanded = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) <a class="code" href="stb__image_8h.html#a038b0e741859a482b8b9d60167e54d27">stbi_zlib_decode_malloc_guesssize_headerflag</a>((<span class="keywordtype">char</span> *) z->idata, ioff, raw_len, (<span class="keywordtype">int</span> *) &raw_len, !is_iphone);</div> -<div class="line"><a name="l04799"></a><span class="lineno"> 4799</span>  <span class="keywordflow">if</span> (z->expanded == NULL) <span class="keywordflow">return</span> 0; <span class="comment">// zlib should set error</span></div> -<div class="line"><a name="l04800"></a><span class="lineno"> 4800</span>  STBI_FREE(z->idata); z->idata = NULL;</div> -<div class="line"><a name="l04801"></a><span class="lineno"> 4801</span>  <span class="keywordflow">if</span> ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans)</div> -<div class="line"><a name="l04802"></a><span class="lineno"> 4802</span>  s->img_out_n = s->img_n+1;</div> -<div class="line"><a name="l04803"></a><span class="lineno"> 4803</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l04804"></a><span class="lineno"> 4804</span>  s->img_out_n = s->img_n;</div> -<div class="line"><a name="l04805"></a><span class="lineno"> 4805</span>  <span class="keywordflow">if</span> (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04806"></a><span class="lineno"> 4806</span>  <span class="keywordflow">if</span> (has_trans) {</div> -<div class="line"><a name="l04807"></a><span class="lineno"> 4807</span>  <span class="keywordflow">if</span> (z->depth == 16) {</div> -<div class="line"><a name="l04808"></a><span class="lineno"> 4808</span>  <span class="keywordflow">if</span> (!stbi__compute_transparency16(z, tc16, s->img_out_n)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04809"></a><span class="lineno"> 4809</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l04810"></a><span class="lineno"> 4810</span>  <span class="keywordflow">if</span> (!stbi__compute_transparency(z, tc, s->img_out_n)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04811"></a><span class="lineno"> 4811</span>  }</div> -<div class="line"><a name="l04812"></a><span class="lineno"> 4812</span>  }</div> -<div class="line"><a name="l04813"></a><span class="lineno"> 4813</span>  <span class="keywordflow">if</span> (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2)</div> -<div class="line"><a name="l04814"></a><span class="lineno"> 4814</span>  stbi__de_iphone(z);</div> -<div class="line"><a name="l04815"></a><span class="lineno"> 4815</span>  <span class="keywordflow">if</span> (pal_img_n) {</div> -<div class="line"><a name="l04816"></a><span class="lineno"> 4816</span>  <span class="comment">// pal_img_n == 3 or 4</span></div> -<div class="line"><a name="l04817"></a><span class="lineno"> 4817</span>  s->img_n = pal_img_n; <span class="comment">// record the actual colors we had</span></div> -<div class="line"><a name="l04818"></a><span class="lineno"> 4818</span>  s->img_out_n = pal_img_n;</div> -<div class="line"><a name="l04819"></a><span class="lineno"> 4819</span>  <span class="keywordflow">if</span> (req_comp >= 3) s->img_out_n = req_comp;</div> -<div class="line"><a name="l04820"></a><span class="lineno"> 4820</span>  <span class="keywordflow">if</span> (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n))</div> -<div class="line"><a name="l04821"></a><span class="lineno"> 4821</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04822"></a><span class="lineno"> 4822</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (has_trans) {</div> -<div class="line"><a name="l04823"></a><span class="lineno"> 4823</span>  <span class="comment">// non-paletted image with tRNS -> source image has (constant) alpha</span></div> -<div class="line"><a name="l04824"></a><span class="lineno"> 4824</span>  ++s->img_n;</div> -<div class="line"><a name="l04825"></a><span class="lineno"> 4825</span>  }</div> -<div class="line"><a name="l04826"></a><span class="lineno"> 4826</span>  STBI_FREE(z->expanded); z->expanded = NULL;</div> -<div class="line"><a name="l04827"></a><span class="lineno"> 4827</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04828"></a><span class="lineno"> 4828</span>  }</div> +<div class="line"><a name="l04695"></a><span class="lineno"> 4695</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__do_zlib(stbi__zbuf *a, <span class="keywordtype">char</span> *obuf, <span class="keywordtype">int</span> olen, <span class="keywordtype">int</span> exp,</div> +<div class="line"><a name="l04696"></a><span class="lineno"> 4696</span>  <span class="keywordtype">int</span> parse_header)</div> +<div class="line"><a name="l04697"></a><span class="lineno"> 4697</span> {</div> +<div class="line"><a name="l04698"></a><span class="lineno"> 4698</span>  a->zout_start = obuf;</div> +<div class="line"><a name="l04699"></a><span class="lineno"> 4699</span>  a->zout = obuf;</div> +<div class="line"><a name="l04700"></a><span class="lineno"> 4700</span>  a->zout_end = obuf + olen;</div> +<div class="line"><a name="l04701"></a><span class="lineno"> 4701</span>  a->z_expandable = exp;</div> +<div class="line"><a name="l04702"></a><span class="lineno"> 4702</span> </div> +<div class="line"><a name="l04703"></a><span class="lineno"> 4703</span>  <span class="keywordflow">return</span> stbi__parse_zlib(a, parse_header);</div> +<div class="line"><a name="l04704"></a><span class="lineno"> 4704</span> }</div> +<div class="line"><a name="l04705"></a><span class="lineno"> 4705</span> </div> +<div class="line"><a name="l04706"></a><span class="lineno"> 4706</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l04707"></a><span class="lineno"> 4707</span>  <span class="keywordtype">int</span> initial_size, <span class="keywordtype">int</span> *outlen)</div> +<div class="line"><a name="l04708"></a><span class="lineno"> 4708</span> {</div> +<div class="line"><a name="l04709"></a><span class="lineno"> 4709</span>  stbi__zbuf a;</div> +<div class="line"><a name="l04710"></a><span class="lineno"> 4710</span>  <span class="keywordtype">char</span> *p = (<span class="keywordtype">char</span> *)stbi__malloc(initial_size);</div> +<div class="line"><a name="l04711"></a><span class="lineno"> 4711</span>  <span class="keywordflow">if</span> (p == NULL)</div> +<div class="line"><a name="l04712"></a><span class="lineno"> 4712</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04713"></a><span class="lineno"> 4713</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer;</div> +<div class="line"><a name="l04714"></a><span class="lineno"> 4714</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer + len;</div> +<div class="line"><a name="l04715"></a><span class="lineno"> 4715</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, p, initial_size, 1, 1)) {</div> +<div class="line"><a name="l04716"></a><span class="lineno"> 4716</span>  <span class="keywordflow">if</span> (outlen)</div> +<div class="line"><a name="l04717"></a><span class="lineno"> 4717</span>  *outlen = (int)(a.zout - a.zout_start);</div> +<div class="line"><a name="l04718"></a><span class="lineno"> 4718</span>  <span class="keywordflow">return</span> a.zout_start;</div> +<div class="line"><a name="l04719"></a><span class="lineno"> 4719</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04720"></a><span class="lineno"> 4720</span>  STBI_FREE(a.zout_start);</div> +<div class="line"><a name="l04721"></a><span class="lineno"> 4721</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04722"></a><span class="lineno"> 4722</span>  }</div> +<div class="line"><a name="l04723"></a><span class="lineno"> 4723</span> }</div> +<div class="line"><a name="l04724"></a><span class="lineno"> 4724</span> </div> +<div class="line"><a name="l04725"></a><span class="lineno"> 4725</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a4919b67b12e0e3acc5301f185ca77e2e">stbi_zlib_decode_malloc</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *outlen)</div> +<div class="line"><a name="l04726"></a><span class="lineno"> 4726</span> {</div> +<div class="line"><a name="l04727"></a><span class="lineno"> 4727</span>  <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a>(buffer, len, 16384, outlen);</div> +<div class="line"><a name="l04728"></a><span class="lineno"> 4728</span> }</div> +<div class="line"><a name="l04729"></a><span class="lineno"> 4729</span> </div> +<div class="line"><a name="l04730"></a><span class="lineno"> 4730</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a038b0e741859a482b8b9d60167e54d27">stbi_zlib_decode_malloc_guesssize_headerflag</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer,</div> +<div class="line"><a name="l04731"></a><span class="lineno"> 4731</span>  <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l04732"></a><span class="lineno"> 4732</span>  <span class="keywordtype">int</span> initial_size,</div> +<div class="line"><a name="l04733"></a><span class="lineno"> 4733</span>  <span class="keywordtype">int</span> *outlen,</div> +<div class="line"><a name="l04734"></a><span class="lineno"> 4734</span>  <span class="keywordtype">int</span> parse_header)</div> +<div class="line"><a name="l04735"></a><span class="lineno"> 4735</span> {</div> +<div class="line"><a name="l04736"></a><span class="lineno"> 4736</span>  stbi__zbuf a;</div> +<div class="line"><a name="l04737"></a><span class="lineno"> 4737</span>  <span class="keywordtype">char</span> *p = (<span class="keywordtype">char</span> *)stbi__malloc(initial_size);</div> +<div class="line"><a name="l04738"></a><span class="lineno"> 4738</span>  <span class="keywordflow">if</span> (p == NULL)</div> +<div class="line"><a name="l04739"></a><span class="lineno"> 4739</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04740"></a><span class="lineno"> 4740</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer;</div> +<div class="line"><a name="l04741"></a><span class="lineno"> 4741</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer + len;</div> +<div class="line"><a name="l04742"></a><span class="lineno"> 4742</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) {</div> +<div class="line"><a name="l04743"></a><span class="lineno"> 4743</span>  <span class="keywordflow">if</span> (outlen)</div> +<div class="line"><a name="l04744"></a><span class="lineno"> 4744</span>  *outlen = (int)(a.zout - a.zout_start);</div> +<div class="line"><a name="l04745"></a><span class="lineno"> 4745</span>  <span class="keywordflow">return</span> a.zout_start;</div> +<div class="line"><a name="l04746"></a><span class="lineno"> 4746</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04747"></a><span class="lineno"> 4747</span>  STBI_FREE(a.zout_start);</div> +<div class="line"><a name="l04748"></a><span class="lineno"> 4748</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04749"></a><span class="lineno"> 4749</span>  }</div> +<div class="line"><a name="l04750"></a><span class="lineno"> 4750</span> }</div> +<div class="line"><a name="l04751"></a><span class="lineno"> 4751</span> </div> +<div class="line"><a name="l04752"></a><span class="lineno"> 4752</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#ae8447830c49bc17f8491e12c1f0ded48">stbi_zlib_decode_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen,</div> +<div class="line"><a name="l04753"></a><span class="lineno"> 4753</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *ibuffer, <span class="keywordtype">int</span> ilen)</div> +<div class="line"><a name="l04754"></a><span class="lineno"> 4754</span> {</div> +<div class="line"><a name="l04755"></a><span class="lineno"> 4755</span>  stbi__zbuf a;</div> +<div class="line"><a name="l04756"></a><span class="lineno"> 4756</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)ibuffer;</div> +<div class="line"><a name="l04757"></a><span class="lineno"> 4757</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)ibuffer + ilen;</div> +<div class="line"><a name="l04758"></a><span class="lineno"> 4758</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, obuffer, olen, 0, 1))</div> +<div class="line"><a name="l04759"></a><span class="lineno"> 4759</span>  <span class="keywordflow">return</span> (<span class="keywordtype">int</span>)(a.zout - a.zout_start);</div> +<div class="line"><a name="l04760"></a><span class="lineno"> 4760</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l04761"></a><span class="lineno"> 4761</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l04762"></a><span class="lineno"> 4762</span> }</div> +<div class="line"><a name="l04763"></a><span class="lineno"> 4763</span> </div> +<div class="line"><a name="l04764"></a><span class="lineno"> 4764</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">char</span> *<a class="code" href="stb__image_8h.html#a7fbd65c83495f13f22469fe493775739">stbi_zlib_decode_noheader_malloc</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l04765"></a><span class="lineno"> 4765</span>  <span class="keywordtype">int</span> *outlen)</div> +<div class="line"><a name="l04766"></a><span class="lineno"> 4766</span> {</div> +<div class="line"><a name="l04767"></a><span class="lineno"> 4767</span>  stbi__zbuf a;</div> +<div class="line"><a name="l04768"></a><span class="lineno"> 4768</span>  <span class="keywordtype">char</span> *p = (<span class="keywordtype">char</span> *)stbi__malloc(16384);</div> +<div class="line"><a name="l04769"></a><span class="lineno"> 4769</span>  <span class="keywordflow">if</span> (p == NULL)</div> +<div class="line"><a name="l04770"></a><span class="lineno"> 4770</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04771"></a><span class="lineno"> 4771</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer;</div> +<div class="line"><a name="l04772"></a><span class="lineno"> 4772</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)buffer + len;</div> +<div class="line"><a name="l04773"></a><span class="lineno"> 4773</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, p, 16384, 1, 0)) {</div> +<div class="line"><a name="l04774"></a><span class="lineno"> 4774</span>  <span class="keywordflow">if</span> (outlen)</div> +<div class="line"><a name="l04775"></a><span class="lineno"> 4775</span>  *outlen = (int)(a.zout - a.zout_start);</div> +<div class="line"><a name="l04776"></a><span class="lineno"> 4776</span>  <span class="keywordflow">return</span> a.zout_start;</div> +<div class="line"><a name="l04777"></a><span class="lineno"> 4777</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04778"></a><span class="lineno"> 4778</span>  STBI_FREE(a.zout_start);</div> +<div class="line"><a name="l04779"></a><span class="lineno"> 4779</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l04780"></a><span class="lineno"> 4780</span>  }</div> +<div class="line"><a name="l04781"></a><span class="lineno"> 4781</span> }</div> +<div class="line"><a name="l04782"></a><span class="lineno"> 4782</span> </div> +<div class="line"><a name="l04783"></a><span class="lineno"> 4783</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a0d12efc011adfff7521f3b924feb0b0e">stbi_zlib_decode_noheader_buffer</a>(<span class="keywordtype">char</span> *obuffer, <span class="keywordtype">int</span> olen,</div> +<div class="line"><a name="l04784"></a><span class="lineno"> 4784</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *ibuffer, <span class="keywordtype">int</span> ilen)</div> +<div class="line"><a name="l04785"></a><span class="lineno"> 4785</span> {</div> +<div class="line"><a name="l04786"></a><span class="lineno"> 4786</span>  stbi__zbuf a;</div> +<div class="line"><a name="l04787"></a><span class="lineno"> 4787</span>  a.zbuffer = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)ibuffer;</div> +<div class="line"><a name="l04788"></a><span class="lineno"> 4788</span>  a.zbuffer_end = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)ibuffer + ilen;</div> +<div class="line"><a name="l04789"></a><span class="lineno"> 4789</span>  <span class="keywordflow">if</span> (stbi__do_zlib(&a, obuffer, olen, 0, 0))</div> +<div class="line"><a name="l04790"></a><span class="lineno"> 4790</span>  <span class="keywordflow">return</span> (<span class="keywordtype">int</span>)(a.zout - a.zout_start);</div> +<div class="line"><a name="l04791"></a><span class="lineno"> 4791</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l04792"></a><span class="lineno"> 4792</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l04793"></a><span class="lineno"> 4793</span> }</div> +<div class="line"><a name="l04794"></a><span class="lineno"> 4794</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l04795"></a><span class="lineno"> 4795</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l04796"></a><span class="lineno"> 4796</span>  <span class="comment">// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18</span></div> +<div class="line"><a name="l04797"></a><span class="lineno"> 4797</span>  <span class="comment">// simple implementation</span></div> +<div class="line"><a name="l04798"></a><span class="lineno"> 4798</span>  <span class="comment">// - only 8-bit samples</span></div> +<div class="line"><a name="l04799"></a><span class="lineno"> 4799</span>  <span class="comment">// - no CRC checking</span></div> +<div class="line"><a name="l04800"></a><span class="lineno"> 4800</span>  <span class="comment">// - allocates lots of intermediate memory</span></div> +<div class="line"><a name="l04801"></a><span class="lineno"> 4801</span>  <span class="comment">// - avoids problem of streaming data between subsystems</span></div> +<div class="line"><a name="l04802"></a><span class="lineno"> 4802</span>  <span class="comment">// - avoids explicit window management</span></div> +<div class="line"><a name="l04803"></a><span class="lineno"> 4803</span>  <span class="comment">// performance</span></div> +<div class="line"><a name="l04804"></a><span class="lineno"> 4804</span>  <span class="comment">// - uses stb_zlib, a PD zlib implementation with fast huffman decoding</span></div> +<div class="line"><a name="l04805"></a><span class="lineno"> 4805</span> </div> +<div class="line"><a name="l04806"></a><span class="lineno"> 4806</span> <span class="preprocessor">#ifndef STBI_NO_PNG</span></div> +<div class="line"><a name="l04807"></a><span class="lineno"> 4807</span> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l04808"></a><span class="lineno"> 4808</span>  stbi__uint32 length;</div> +<div class="line"><a name="l04809"></a><span class="lineno"> 4809</span>  stbi__uint32 type;</div> +<div class="line"><a name="l04810"></a><span class="lineno"> 4810</span> } stbi__pngchunk;</div> +<div class="line"><a name="l04811"></a><span class="lineno"> 4811</span> </div> +<div class="line"><a name="l04812"></a><span class="lineno"> 4812</span> <span class="keyword">static</span> stbi__pngchunk stbi__get_chunk_header(stbi__context *s)</div> +<div class="line"><a name="l04813"></a><span class="lineno"> 4813</span> {</div> +<div class="line"><a name="l04814"></a><span class="lineno"> 4814</span>  stbi__pngchunk c;</div> +<div class="line"><a name="l04815"></a><span class="lineno"> 4815</span>  c.length = stbi__get32be(s);</div> +<div class="line"><a name="l04816"></a><span class="lineno"> 4816</span>  c.type = stbi__get32be(s);</div> +<div class="line"><a name="l04817"></a><span class="lineno"> 4817</span>  <span class="keywordflow">return</span> c;</div> +<div class="line"><a name="l04818"></a><span class="lineno"> 4818</span> }</div> +<div class="line"><a name="l04819"></a><span class="lineno"> 4819</span> </div> +<div class="line"><a name="l04820"></a><span class="lineno"> 4820</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__check_png_header(stbi__context *s)</div> +<div class="line"><a name="l04821"></a><span class="lineno"> 4821</span> {</div> +<div class="line"><a name="l04822"></a><span class="lineno"> 4822</span>  <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};</div> +<div class="line"><a name="l04823"></a><span class="lineno"> 4823</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l04824"></a><span class="lineno"> 4824</span>  <span class="keywordflow">for</span> (i = 0; i < 8; ++i)</div> +<div class="line"><a name="l04825"></a><span class="lineno"> 4825</span>  <span class="keywordflow">if</span> (stbi__get8(s) != png_sig[i])</div> +<div class="line"><a name="l04826"></a><span class="lineno"> 4826</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad png sig"</span>, <span class="stringliteral">"Not a PNG"</span>);</div> +<div class="line"><a name="l04827"></a><span class="lineno"> 4827</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l04828"></a><span class="lineno"> 4828</span> }</div> <div class="line"><a name="l04829"></a><span class="lineno"> 4829</span> </div> -<div class="line"><a name="l04830"></a><span class="lineno"> 4830</span>  <span class="keywordflow">default</span>:</div> -<div class="line"><a name="l04831"></a><span class="lineno"> 4831</span>  <span class="comment">// if critical, fail</span></div> -<div class="line"><a name="l04832"></a><span class="lineno"> 4832</span>  <span class="keywordflow">if</span> (first) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> -<div class="line"><a name="l04833"></a><span class="lineno"> 4833</span>  <span class="keywordflow">if</span> ((c.type & (1 << 29)) == 0) {</div> -<div class="line"><a name="l04834"></a><span class="lineno"> 4834</span> <span class="preprocessor"> #ifndef STBI_NO_FAILURE_STRINGS</span></div> -<div class="line"><a name="l04835"></a><span class="lineno"> 4835</span> <span class="preprocessor"></span> <span class="comment">// not threadsafe</span></div> -<div class="line"><a name="l04836"></a><span class="lineno"> 4836</span>  <span class="keyword">static</span> <span class="keywordtype">char</span> invalid_chunk[] = <span class="stringliteral">"XXXX PNG chunk not known"</span>;</div> -<div class="line"><a name="l04837"></a><span class="lineno"> 4837</span>  invalid_chunk[0] = STBI__BYTECAST(c.type >> 24);</div> -<div class="line"><a name="l04838"></a><span class="lineno"> 4838</span>  invalid_chunk[1] = STBI__BYTECAST(c.type >> 16);</div> -<div class="line"><a name="l04839"></a><span class="lineno"> 4839</span>  invalid_chunk[2] = STBI__BYTECAST(c.type >> 8);</div> -<div class="line"><a name="l04840"></a><span class="lineno"> 4840</span>  invalid_chunk[3] = STBI__BYTECAST(c.type >> 0);</div> -<div class="line"><a name="l04841"></a><span class="lineno"> 4841</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l04842"></a><span class="lineno"> 4842</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> stbi__err(invalid_chunk, <span class="stringliteral">"PNG not supported: unknown PNG chunk type"</span>);</div> -<div class="line"><a name="l04843"></a><span class="lineno"> 4843</span>  }</div> -<div class="line"><a name="l04844"></a><span class="lineno"> 4844</span>  stbi__skip(s, c.length);</div> -<div class="line"><a name="l04845"></a><span class="lineno"> 4845</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l04846"></a><span class="lineno"> 4846</span>  }</div> -<div class="line"><a name="l04847"></a><span class="lineno"> 4847</span>  <span class="comment">// end of PNG chunk, read and skip CRC</span></div> -<div class="line"><a name="l04848"></a><span class="lineno"> 4848</span>  stbi__get32be(s);</div> -<div class="line"><a name="l04849"></a><span class="lineno"> 4849</span>  }</div> -<div class="line"><a name="l04850"></a><span class="lineno"> 4850</span> }</div> -<div class="line"><a name="l04851"></a><span class="lineno"> 4851</span> </div> -<div class="line"><a name="l04852"></a><span class="lineno"> 4852</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__do_png(stbi__png *p, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *n, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l04853"></a><span class="lineno"> 4853</span> {</div> -<div class="line"><a name="l04854"></a><span class="lineno"> 4854</span>  <span class="keywordtype">void</span> *result=NULL;</div> -<div class="line"><a name="l04855"></a><span class="lineno"> 4855</span>  <span class="keywordflow">if</span> (req_comp < 0 || req_comp > 4) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad req_comp"</span>, <span class="stringliteral">"Internal error"</span>);</div> -<div class="line"><a name="l04856"></a><span class="lineno"> 4856</span>  <span class="keywordflow">if</span> (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) {</div> -<div class="line"><a name="l04857"></a><span class="lineno"> 4857</span>  <span class="keywordflow">if</span> (p->depth < 8)</div> -<div class="line"><a name="l04858"></a><span class="lineno"> 4858</span>  ri->bits_per_channel = 8;</div> -<div class="line"><a name="l04859"></a><span class="lineno"> 4859</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l04860"></a><span class="lineno"> 4860</span>  ri->bits_per_channel = p->depth;</div> -<div class="line"><a name="l04861"></a><span class="lineno"> 4861</span>  result = p->out;</div> -<div class="line"><a name="l04862"></a><span class="lineno"> 4862</span>  p->out = NULL;</div> -<div class="line"><a name="l04863"></a><span class="lineno"> 4863</span>  <span class="keywordflow">if</span> (req_comp && req_comp != p->s->img_out_n) {</div> -<div class="line"><a name="l04864"></a><span class="lineno"> 4864</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 8)</div> -<div class="line"><a name="l04865"></a><span class="lineno"> 4865</span>  result = stbi__convert_format((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y);</div> -<div class="line"><a name="l04866"></a><span class="lineno"> 4866</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l04867"></a><span class="lineno"> 4867</span>  result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y);</div> -<div class="line"><a name="l04868"></a><span class="lineno"> 4868</span>  p->s->img_out_n = req_comp;</div> -<div class="line"><a name="l04869"></a><span class="lineno"> 4869</span>  <span class="keywordflow">if</span> (result == NULL) <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l04870"></a><span class="lineno"> 4870</span>  }</div> -<div class="line"><a name="l04871"></a><span class="lineno"> 4871</span>  *x = p->s->img_x;</div> -<div class="line"><a name="l04872"></a><span class="lineno"> 4872</span>  *y = p->s->img_y;</div> -<div class="line"><a name="l04873"></a><span class="lineno"> 4873</span>  <span class="keywordflow">if</span> (n) *n = p->s->img_n;</div> -<div class="line"><a name="l04874"></a><span class="lineno"> 4874</span>  }</div> -<div class="line"><a name="l04875"></a><span class="lineno"> 4875</span>  STBI_FREE(p->out); p->out = NULL;</div> -<div class="line"><a name="l04876"></a><span class="lineno"> 4876</span>  STBI_FREE(p->expanded); p->expanded = NULL;</div> -<div class="line"><a name="l04877"></a><span class="lineno"> 4877</span>  STBI_FREE(p->idata); p->idata = NULL;</div> -<div class="line"><a name="l04878"></a><span class="lineno"> 4878</span> </div> -<div class="line"><a name="l04879"></a><span class="lineno"> 4879</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l04880"></a><span class="lineno"> 4880</span> }</div> -<div class="line"><a name="l04881"></a><span class="lineno"> 4881</span> </div> -<div class="line"><a name="l04882"></a><span class="lineno"> 4882</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__png_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l04883"></a><span class="lineno"> 4883</span> {</div> -<div class="line"><a name="l04884"></a><span class="lineno"> 4884</span>  stbi__png p;</div> -<div class="line"><a name="l04885"></a><span class="lineno"> 4885</span>  p.s = s;</div> -<div class="line"><a name="l04886"></a><span class="lineno"> 4886</span>  <span class="keywordflow">return</span> stbi__do_png(&p, x,y,comp,req_comp, ri);</div> -<div class="line"><a name="l04887"></a><span class="lineno"> 4887</span> }</div> -<div class="line"><a name="l04888"></a><span class="lineno"> 4888</span> </div> -<div class="line"><a name="l04889"></a><span class="lineno"> 4889</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_test(stbi__context *s)</div> -<div class="line"><a name="l04890"></a><span class="lineno"> 4890</span> {</div> -<div class="line"><a name="l04891"></a><span class="lineno"> 4891</span>  <span class="keywordtype">int</span> r;</div> -<div class="line"><a name="l04892"></a><span class="lineno"> 4892</span>  r = stbi__check_png_header(s);</div> -<div class="line"><a name="l04893"></a><span class="lineno"> 4893</span>  stbi__rewind(s);</div> -<div class="line"><a name="l04894"></a><span class="lineno"> 4894</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l04895"></a><span class="lineno"> 4895</span> }</div> -<div class="line"><a name="l04896"></a><span class="lineno"> 4896</span> </div> -<div class="line"><a name="l04897"></a><span class="lineno"> 4897</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_info_raw(stbi__png *p, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l04898"></a><span class="lineno"> 4898</span> {</div> -<div class="line"><a name="l04899"></a><span class="lineno"> 4899</span>  <span class="keywordflow">if</span> (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) {</div> -<div class="line"><a name="l04900"></a><span class="lineno"> 4900</span>  stbi__rewind( p->s );</div> -<div class="line"><a name="l04901"></a><span class="lineno"> 4901</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04902"></a><span class="lineno"> 4902</span>  }</div> -<div class="line"><a name="l04903"></a><span class="lineno"> 4903</span>  <span class="keywordflow">if</span> (x) *x = p->s->img_x;</div> -<div class="line"><a name="l04904"></a><span class="lineno"> 4904</span>  <span class="keywordflow">if</span> (y) *y = p->s->img_y;</div> -<div class="line"><a name="l04905"></a><span class="lineno"> 4905</span>  <span class="keywordflow">if</span> (comp) *comp = p->s->img_n;</div> -<div class="line"><a name="l04906"></a><span class="lineno"> 4906</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l04907"></a><span class="lineno"> 4907</span> }</div> -<div class="line"><a name="l04908"></a><span class="lineno"> 4908</span> </div> -<div class="line"><a name="l04909"></a><span class="lineno"> 4909</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l04910"></a><span class="lineno"> 4910</span> {</div> -<div class="line"><a name="l04911"></a><span class="lineno"> 4911</span>  stbi__png p;</div> -<div class="line"><a name="l04912"></a><span class="lineno"> 4912</span>  p.s = s;</div> -<div class="line"><a name="l04913"></a><span class="lineno"> 4913</span>  <span class="keywordflow">return</span> stbi__png_info_raw(&p, x, y, comp);</div> -<div class="line"><a name="l04914"></a><span class="lineno"> 4914</span> }</div> -<div class="line"><a name="l04915"></a><span class="lineno"> 4915</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l04916"></a><span class="lineno"> 4916</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l04917"></a><span class="lineno"> 4917</span> <span class="comment">// Microsoft/Windows BMP image</span></div> -<div class="line"><a name="l04918"></a><span class="lineno"> 4918</span> </div> -<div class="line"><a name="l04919"></a><span class="lineno"> 4919</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> -<div class="line"><a name="l04920"></a><span class="lineno"> 4920</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_test_raw(stbi__context *s)</div> -<div class="line"><a name="l04921"></a><span class="lineno"> 4921</span> {</div> -<div class="line"><a name="l04922"></a><span class="lineno"> 4922</span>  <span class="keywordtype">int</span> r;</div> -<div class="line"><a name="l04923"></a><span class="lineno"> 4923</span>  <span class="keywordtype">int</span> sz;</div> -<div class="line"><a name="l04924"></a><span class="lineno"> 4924</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'B'</span>) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04925"></a><span class="lineno"> 4925</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'M'</span>) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l04926"></a><span class="lineno"> 4926</span>  stbi__get32le(s); <span class="comment">// discard filesize</span></div> -<div class="line"><a name="l04927"></a><span class="lineno"> 4927</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> -<div class="line"><a name="l04928"></a><span class="lineno"> 4928</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> -<div class="line"><a name="l04929"></a><span class="lineno"> 4929</span>  stbi__get32le(s); <span class="comment">// discard data offset</span></div> -<div class="line"><a name="l04930"></a><span class="lineno"> 4930</span>  sz = stbi__get32le(s);</div> -<div class="line"><a name="l04931"></a><span class="lineno"> 4931</span>  r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124);</div> -<div class="line"><a name="l04932"></a><span class="lineno"> 4932</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l04933"></a><span class="lineno"> 4933</span> }</div> -<div class="line"><a name="l04934"></a><span class="lineno"> 4934</span> </div> -<div class="line"><a name="l04935"></a><span class="lineno"> 4935</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_test(stbi__context *s)</div> -<div class="line"><a name="l04936"></a><span class="lineno"> 4936</span> {</div> -<div class="line"><a name="l04937"></a><span class="lineno"> 4937</span>  <span class="keywordtype">int</span> r = stbi__bmp_test_raw(s);</div> -<div class="line"><a name="l04938"></a><span class="lineno"> 4938</span>  stbi__rewind(s);</div> -<div class="line"><a name="l04939"></a><span class="lineno"> 4939</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l04940"></a><span class="lineno"> 4940</span> }</div> -<div class="line"><a name="l04941"></a><span class="lineno"> 4941</span> </div> -<div class="line"><a name="l04942"></a><span class="lineno"> 4942</span> </div> -<div class="line"><a name="l04943"></a><span class="lineno"> 4943</span> <span class="comment">// returns 0..31 for the highest set bit</span></div> -<div class="line"><a name="l04944"></a><span class="lineno"> 4944</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__high_bit(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> z)</div> -<div class="line"><a name="l04945"></a><span class="lineno"> 4945</span> {</div> -<div class="line"><a name="l04946"></a><span class="lineno"> 4946</span>  <span class="keywordtype">int</span> n=0;</div> -<div class="line"><a name="l04947"></a><span class="lineno"> 4947</span>  <span class="keywordflow">if</span> (z == 0) <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l04948"></a><span class="lineno"> 4948</span>  <span class="keywordflow">if</span> (z >= 0x10000) n += 16, z >>= 16;</div> -<div class="line"><a name="l04949"></a><span class="lineno"> 4949</span>  <span class="keywordflow">if</span> (z >= 0x00100) n += 8, z >>= 8;</div> -<div class="line"><a name="l04950"></a><span class="lineno"> 4950</span>  <span class="keywordflow">if</span> (z >= 0x00010) n += 4, z >>= 4;</div> -<div class="line"><a name="l04951"></a><span class="lineno"> 4951</span>  <span class="keywordflow">if</span> (z >= 0x00004) n += 2, z >>= 2;</div> -<div class="line"><a name="l04952"></a><span class="lineno"> 4952</span>  <span class="keywordflow">if</span> (z >= 0x00002) n += 1, z >>= 1;</div> -<div class="line"><a name="l04953"></a><span class="lineno"> 4953</span>  <span class="keywordflow">return</span> n;</div> -<div class="line"><a name="l04954"></a><span class="lineno"> 4954</span> }</div> -<div class="line"><a name="l04955"></a><span class="lineno"> 4955</span> </div> -<div class="line"><a name="l04956"></a><span class="lineno"> 4956</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bitcount(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> a)</div> -<div class="line"><a name="l04957"></a><span class="lineno"> 4957</span> {</div> -<div class="line"><a name="l04958"></a><span class="lineno"> 4958</span>  a = (a & 0x55555555) + ((a >> 1) & 0x55555555); <span class="comment">// max 2</span></div> -<div class="line"><a name="l04959"></a><span class="lineno"> 4959</span>  a = (a & 0x33333333) + ((a >> 2) & 0x33333333); <span class="comment">// max 4</span></div> -<div class="line"><a name="l04960"></a><span class="lineno"> 4960</span>  a = (a + (a >> 4)) & 0x0f0f0f0f; <span class="comment">// max 8 per 4, now 8 bits</span></div> -<div class="line"><a name="l04961"></a><span class="lineno"> 4961</span>  a = (a + (a >> 8)); <span class="comment">// max 16 per 8 bits</span></div> -<div class="line"><a name="l04962"></a><span class="lineno"> 4962</span>  a = (a + (a >> 16)); <span class="comment">// max 32 per 8 bits</span></div> -<div class="line"><a name="l04963"></a><span class="lineno"> 4963</span>  <span class="keywordflow">return</span> a & 0xff;</div> -<div class="line"><a name="l04964"></a><span class="lineno"> 4964</span> }</div> -<div class="line"><a name="l04965"></a><span class="lineno"> 4965</span> </div> -<div class="line"><a name="l04966"></a><span class="lineno"> 4966</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__shiftsigned(<span class="keywordtype">int</span> v, <span class="keywordtype">int</span> shift, <span class="keywordtype">int</span> bits)</div> -<div class="line"><a name="l04967"></a><span class="lineno"> 4967</span> {</div> -<div class="line"><a name="l04968"></a><span class="lineno"> 4968</span>  <span class="keywordtype">int</span> result;</div> -<div class="line"><a name="l04969"></a><span class="lineno"> 4969</span>  <span class="keywordtype">int</span> z=0;</div> -<div class="line"><a name="l04970"></a><span class="lineno"> 4970</span> </div> -<div class="line"><a name="l04971"></a><span class="lineno"> 4971</span>  <span class="keywordflow">if</span> (shift < 0) v <<= -shift;</div> -<div class="line"><a name="l04972"></a><span class="lineno"> 4972</span>  <span class="keywordflow">else</span> v >>= shift;</div> -<div class="line"><a name="l04973"></a><span class="lineno"> 4973</span>  result = v;</div> -<div class="line"><a name="l04974"></a><span class="lineno"> 4974</span> </div> -<div class="line"><a name="l04975"></a><span class="lineno"> 4975</span>  z = bits;</div> -<div class="line"><a name="l04976"></a><span class="lineno"> 4976</span>  <span class="keywordflow">while</span> (z < 8) {</div> -<div class="line"><a name="l04977"></a><span class="lineno"> 4977</span>  result += v >> z;</div> -<div class="line"><a name="l04978"></a><span class="lineno"> 4978</span>  z += bits;</div> -<div class="line"><a name="l04979"></a><span class="lineno"> 4979</span>  }</div> -<div class="line"><a name="l04980"></a><span class="lineno"> 4980</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l04981"></a><span class="lineno"> 4981</span> }</div> -<div class="line"><a name="l04982"></a><span class="lineno"> 4982</span> </div> -<div class="line"><a name="l04983"></a><span class="lineno"> 4983</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l04984"></a><span class="lineno"> 4984</span> {</div> -<div class="line"><a name="l04985"></a><span class="lineno"> 4985</span>  <span class="keywordtype">int</span> bpp, offset, hsz;</div> -<div class="line"><a name="l04986"></a><span class="lineno"> 4986</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mr,mg,mb,ma, all_a;</div> -<div class="line"><a name="l04987"></a><span class="lineno"> 4987</span> } stbi__bmp_data;</div> -<div class="line"><a name="l04988"></a><span class="lineno"> 4988</span> </div> -<div class="line"><a name="l04989"></a><span class="lineno"> 4989</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info)</div> -<div class="line"><a name="l04990"></a><span class="lineno"> 4990</span> {</div> -<div class="line"><a name="l04991"></a><span class="lineno"> 4991</span>  <span class="keywordtype">int</span> hsz;</div> -<div class="line"><a name="l04992"></a><span class="lineno"> 4992</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'B'</span> || stbi__get8(s) != <span class="charliteral">'M'</span>) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"not BMP"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> -<div class="line"><a name="l04993"></a><span class="lineno"> 4993</span>  stbi__get32le(s); <span class="comment">// discard filesize</span></div> -<div class="line"><a name="l04994"></a><span class="lineno"> 4994</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> -<div class="line"><a name="l04995"></a><span class="lineno"> 4995</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> -<div class="line"><a name="l04996"></a><span class="lineno"> 4996</span>  info->offset = stbi__get32le(s);</div> -<div class="line"><a name="l04997"></a><span class="lineno"> 4997</span>  info->hsz = hsz = stbi__get32le(s);</div> -<div class="line"><a name="l04998"></a><span class="lineno"> 4998</span>  info->mr = info->mg = info->mb = info->ma = 0;</div> -<div class="line"><a name="l04999"></a><span class="lineno"> 4999</span> </div> -<div class="line"><a name="l05000"></a><span class="lineno"> 5000</span>  <span class="keywordflow">if</span> (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unknown BMP"</span>, <span class="stringliteral">"BMP type not supported: unknown"</span>);</div> -<div class="line"><a name="l05001"></a><span class="lineno"> 5001</span>  <span class="keywordflow">if</span> (hsz == 12) {</div> -<div class="line"><a name="l05002"></a><span class="lineno"> 5002</span>  s->img_x = stbi__get16le(s);</div> -<div class="line"><a name="l05003"></a><span class="lineno"> 5003</span>  s->img_y = stbi__get16le(s);</div> -<div class="line"><a name="l05004"></a><span class="lineno"> 5004</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05005"></a><span class="lineno"> 5005</span>  s->img_x = stbi__get32le(s);</div> -<div class="line"><a name="l05006"></a><span class="lineno"> 5006</span>  s->img_y = stbi__get32le(s);</div> -<div class="line"><a name="l05007"></a><span class="lineno"> 5007</span>  }</div> -<div class="line"><a name="l05008"></a><span class="lineno"> 5008</span>  <span class="keywordflow">if</span> (stbi__get16le(s) != 1) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> -<div class="line"><a name="l05009"></a><span class="lineno"> 5009</span>  info->bpp = stbi__get16le(s);</div> -<div class="line"><a name="l05010"></a><span class="lineno"> 5010</span>  <span class="keywordflow">if</span> (info->bpp == 1) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"monochrome"</span>, <span class="stringliteral">"BMP type not supported: 1-bit"</span>);</div> -<div class="line"><a name="l05011"></a><span class="lineno"> 5011</span>  <span class="keywordflow">if</span> (hsz != 12) {</div> -<div class="line"><a name="l05012"></a><span class="lineno"> 5012</span>  <span class="keywordtype">int</span> compress = stbi__get32le(s);</div> -<div class="line"><a name="l05013"></a><span class="lineno"> 5013</span>  <span class="keywordflow">if</span> (compress == 1 || compress == 2) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"BMP RLE"</span>, <span class="stringliteral">"BMP type not supported: RLE"</span>);</div> -<div class="line"><a name="l05014"></a><span class="lineno"> 5014</span>  stbi__get32le(s); <span class="comment">// discard sizeof</span></div> -<div class="line"><a name="l05015"></a><span class="lineno"> 5015</span>  stbi__get32le(s); <span class="comment">// discard hres</span></div> -<div class="line"><a name="l05016"></a><span class="lineno"> 5016</span>  stbi__get32le(s); <span class="comment">// discard vres</span></div> -<div class="line"><a name="l05017"></a><span class="lineno"> 5017</span>  stbi__get32le(s); <span class="comment">// discard colorsused</span></div> -<div class="line"><a name="l05018"></a><span class="lineno"> 5018</span>  stbi__get32le(s); <span class="comment">// discard max important</span></div> -<div class="line"><a name="l05019"></a><span class="lineno"> 5019</span>  <span class="keywordflow">if</span> (hsz == 40 || hsz == 56) {</div> -<div class="line"><a name="l05020"></a><span class="lineno"> 5020</span>  <span class="keywordflow">if</span> (hsz == 56) {</div> -<div class="line"><a name="l05021"></a><span class="lineno"> 5021</span>  stbi__get32le(s);</div> -<div class="line"><a name="l05022"></a><span class="lineno"> 5022</span>  stbi__get32le(s);</div> -<div class="line"><a name="l05023"></a><span class="lineno"> 5023</span>  stbi__get32le(s);</div> -<div class="line"><a name="l05024"></a><span class="lineno"> 5024</span>  stbi__get32le(s);</div> -<div class="line"><a name="l05025"></a><span class="lineno"> 5025</span>  }</div> -<div class="line"><a name="l05026"></a><span class="lineno"> 5026</span>  <span class="keywordflow">if</span> (info->bpp == 16 || info->bpp == 32) {</div> -<div class="line"><a name="l05027"></a><span class="lineno"> 5027</span>  <span class="keywordflow">if</span> (compress == 0) {</div> -<div class="line"><a name="l05028"></a><span class="lineno"> 5028</span>  <span class="keywordflow">if</span> (info->bpp == 32) {</div> -<div class="line"><a name="l05029"></a><span class="lineno"> 5029</span>  info->mr = 0xffu << 16;</div> -<div class="line"><a name="l05030"></a><span class="lineno"> 5030</span>  info->mg = 0xffu << 8;</div> -<div class="line"><a name="l05031"></a><span class="lineno"> 5031</span>  info->mb = 0xffu << 0;</div> -<div class="line"><a name="l05032"></a><span class="lineno"> 5032</span>  info->ma = 0xffu << 24;</div> -<div class="line"><a name="l05033"></a><span class="lineno"> 5033</span>  info->all_a = 0; <span class="comment">// if all_a is 0 at end, then we loaded alpha channel but it was all 0</span></div> -<div class="line"><a name="l05034"></a><span class="lineno"> 5034</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05035"></a><span class="lineno"> 5035</span>  info->mr = 31u << 10;</div> -<div class="line"><a name="l05036"></a><span class="lineno"> 5036</span>  info->mg = 31u << 5;</div> -<div class="line"><a name="l05037"></a><span class="lineno"> 5037</span>  info->mb = 31u << 0;</div> -<div class="line"><a name="l05038"></a><span class="lineno"> 5038</span>  }</div> -<div class="line"><a name="l05039"></a><span class="lineno"> 5039</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (compress == 3) {</div> -<div class="line"><a name="l05040"></a><span class="lineno"> 5040</span>  info->mr = stbi__get32le(s);</div> -<div class="line"><a name="l05041"></a><span class="lineno"> 5041</span>  info->mg = stbi__get32le(s);</div> -<div class="line"><a name="l05042"></a><span class="lineno"> 5042</span>  info->mb = stbi__get32le(s);</div> -<div class="line"><a name="l05043"></a><span class="lineno"> 5043</span>  <span class="comment">// not documented, but generated by photoshop and handled by mspaint</span></div> -<div class="line"><a name="l05044"></a><span class="lineno"> 5044</span>  <span class="keywordflow">if</span> (info->mr == info->mg && info->mg == info->mb) {</div> -<div class="line"><a name="l05045"></a><span class="lineno"> 5045</span>  <span class="comment">// ?!?!?</span></div> -<div class="line"><a name="l05046"></a><span class="lineno"> 5046</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> -<div class="line"><a name="l05047"></a><span class="lineno"> 5047</span>  }</div> -<div class="line"><a name="l05048"></a><span class="lineno"> 5048</span>  } <span class="keywordflow">else</span></div> -<div class="line"><a name="l05049"></a><span class="lineno"> 5049</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> -<div class="line"><a name="l05050"></a><span class="lineno"> 5050</span>  }</div> -<div class="line"><a name="l05051"></a><span class="lineno"> 5051</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05052"></a><span class="lineno"> 5052</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l05053"></a><span class="lineno"> 5053</span>  <span class="keywordflow">if</span> (hsz != 108 && hsz != 124)</div> -<div class="line"><a name="l05054"></a><span class="lineno"> 5054</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> -<div class="line"><a name="l05055"></a><span class="lineno"> 5055</span>  info->mr = stbi__get32le(s);</div> -<div class="line"><a name="l05056"></a><span class="lineno"> 5056</span>  info->mg = stbi__get32le(s);</div> -<div class="line"><a name="l05057"></a><span class="lineno"> 5057</span>  info->mb = stbi__get32le(s);</div> -<div class="line"><a name="l05058"></a><span class="lineno"> 5058</span>  info->ma = stbi__get32le(s);</div> -<div class="line"><a name="l05059"></a><span class="lineno"> 5059</span>  stbi__get32le(s); <span class="comment">// discard color space</span></div> -<div class="line"><a name="l05060"></a><span class="lineno"> 5060</span>  <span class="keywordflow">for</span> (i=0; i < 12; ++i)</div> -<div class="line"><a name="l05061"></a><span class="lineno"> 5061</span>  stbi__get32le(s); <span class="comment">// discard color space parameters</span></div> -<div class="line"><a name="l05062"></a><span class="lineno"> 5062</span>  <span class="keywordflow">if</span> (hsz == 124) {</div> -<div class="line"><a name="l05063"></a><span class="lineno"> 5063</span>  stbi__get32le(s); <span class="comment">// discard rendering intent</span></div> -<div class="line"><a name="l05064"></a><span class="lineno"> 5064</span>  stbi__get32le(s); <span class="comment">// discard offset of profile data</span></div> -<div class="line"><a name="l05065"></a><span class="lineno"> 5065</span>  stbi__get32le(s); <span class="comment">// discard size of profile data</span></div> -<div class="line"><a name="l05066"></a><span class="lineno"> 5066</span>  stbi__get32le(s); <span class="comment">// discard reserved</span></div> -<div class="line"><a name="l05067"></a><span class="lineno"> 5067</span>  }</div> -<div class="line"><a name="l05068"></a><span class="lineno"> 5068</span>  }</div> -<div class="line"><a name="l05069"></a><span class="lineno"> 5069</span>  }</div> -<div class="line"><a name="l05070"></a><span class="lineno"> 5070</span>  <span class="keywordflow">return</span> (<span class="keywordtype">void</span> *) 1;</div> -<div class="line"><a name="l05071"></a><span class="lineno"> 5071</span> }</div> -<div class="line"><a name="l05072"></a><span class="lineno"> 5072</span> </div> -<div class="line"><a name="l05073"></a><span class="lineno"> 5073</span> </div> -<div class="line"><a name="l05074"></a><span class="lineno"> 5074</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__bmp_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l05075"></a><span class="lineno"> 5075</span> {</div> -<div class="line"><a name="l05076"></a><span class="lineno"> 5076</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out;</div> -<div class="line"><a name="l05077"></a><span class="lineno"> 5077</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mr=0,mg=0,mb=0,ma=0, all_a;</div> -<div class="line"><a name="l05078"></a><span class="lineno"> 5078</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> pal[256][4];</div> -<div class="line"><a name="l05079"></a><span class="lineno"> 5079</span>  <span class="keywordtype">int</span> psize=0,i,j,width;</div> -<div class="line"><a name="l05080"></a><span class="lineno"> 5080</span>  <span class="keywordtype">int</span> flip_vertically, pad, target;</div> -<div class="line"><a name="l05081"></a><span class="lineno"> 5081</span>  stbi__bmp_data info;</div> -<div class="line"><a name="l05082"></a><span class="lineno"> 5082</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l05083"></a><span class="lineno"> 5083</span> </div> -<div class="line"><a name="l05084"></a><span class="lineno"> 5084</span>  info.all_a = 255;</div> -<div class="line"><a name="l05085"></a><span class="lineno"> 5085</span>  <span class="keywordflow">if</span> (stbi__bmp_parse_header(s, &info) == NULL)</div> -<div class="line"><a name="l05086"></a><span class="lineno"> 5086</span>  <span class="keywordflow">return</span> NULL; <span class="comment">// error code already set</span></div> -<div class="line"><a name="l05087"></a><span class="lineno"> 5087</span> </div> -<div class="line"><a name="l05088"></a><span class="lineno"> 5088</span>  flip_vertically = ((int) s->img_y) > 0;</div> -<div class="line"><a name="l05089"></a><span class="lineno"> 5089</span>  s->img_y = abs((<span class="keywordtype">int</span>) s->img_y);</div> -<div class="line"><a name="l05090"></a><span class="lineno"> 5090</span> </div> -<div class="line"><a name="l05091"></a><span class="lineno"> 5091</span>  mr = info.mr;</div> -<div class="line"><a name="l05092"></a><span class="lineno"> 5092</span>  mg = info.mg;</div> -<div class="line"><a name="l05093"></a><span class="lineno"> 5093</span>  mb = info.mb;</div> -<div class="line"><a name="l05094"></a><span class="lineno"> 5094</span>  ma = info.ma;</div> -<div class="line"><a name="l05095"></a><span class="lineno"> 5095</span>  all_a = info.all_a;</div> -<div class="line"><a name="l05096"></a><span class="lineno"> 5096</span> </div> -<div class="line"><a name="l05097"></a><span class="lineno"> 5097</span>  <span class="keywordflow">if</span> (info.hsz == 12) {</div> -<div class="line"><a name="l05098"></a><span class="lineno"> 5098</span>  <span class="keywordflow">if</span> (info.bpp < 24)</div> -<div class="line"><a name="l05099"></a><span class="lineno"> 5099</span>  psize = (info.offset - 14 - 24) / 3;</div> -<div class="line"><a name="l05100"></a><span class="lineno"> 5100</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05101"></a><span class="lineno"> 5101</span>  <span class="keywordflow">if</span> (info.bpp < 16)</div> -<div class="line"><a name="l05102"></a><span class="lineno"> 5102</span>  psize = (info.offset - 14 - info.hsz) >> 2;</div> -<div class="line"><a name="l05103"></a><span class="lineno"> 5103</span>  }</div> -<div class="line"><a name="l05104"></a><span class="lineno"> 5104</span> </div> -<div class="line"><a name="l05105"></a><span class="lineno"> 5105</span>  s->img_n = ma ? 4 : 3;</div> -<div class="line"><a name="l05106"></a><span class="lineno"> 5106</span>  <span class="keywordflow">if</span> (req_comp && req_comp >= 3) <span class="comment">// we can directly decode 3 or 4</span></div> -<div class="line"><a name="l05107"></a><span class="lineno"> 5107</span>  target = req_comp;</div> -<div class="line"><a name="l05108"></a><span class="lineno"> 5108</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l05109"></a><span class="lineno"> 5109</span>  target = s->img_n; <span class="comment">// if they want monochrome, we'll post-convert</span></div> -<div class="line"><a name="l05110"></a><span class="lineno"> 5110</span> </div> -<div class="line"><a name="l05111"></a><span class="lineno"> 5111</span>  <span class="comment">// sanity-check size</span></div> -<div class="line"><a name="l05112"></a><span class="lineno"> 5112</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0))</div> -<div class="line"><a name="l05113"></a><span class="lineno"> 5113</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> -<div class="line"><a name="l05114"></a><span class="lineno"> 5114</span> </div> -<div class="line"><a name="l05115"></a><span class="lineno"> 5115</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0);</div> -<div class="line"><a name="l05116"></a><span class="lineno"> 5116</span>  <span class="keywordflow">if</span> (!out) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l05117"></a><span class="lineno"> 5117</span>  <span class="keywordflow">if</span> (info.bpp < 16) {</div> -<div class="line"><a name="l05118"></a><span class="lineno"> 5118</span>  <span class="keywordtype">int</span> z=0;</div> -<div class="line"><a name="l05119"></a><span class="lineno"> 5119</span>  <span class="keywordflow">if</span> (psize == 0 || psize > 256) { STBI_FREE(out); <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"invalid"</span>, <span class="stringliteral">"Corrupt BMP"</span>); }</div> -<div class="line"><a name="l05120"></a><span class="lineno"> 5120</span>  <span class="keywordflow">for</span> (i=0; i < psize; ++i) {</div> -<div class="line"><a name="l05121"></a><span class="lineno"> 5121</span>  pal[i][2] = stbi__get8(s);</div> -<div class="line"><a name="l05122"></a><span class="lineno"> 5122</span>  pal[i][1] = stbi__get8(s);</div> -<div class="line"><a name="l05123"></a><span class="lineno"> 5123</span>  pal[i][0] = stbi__get8(s);</div> -<div class="line"><a name="l05124"></a><span class="lineno"> 5124</span>  <span class="keywordflow">if</span> (info.hsz != 12) stbi__get8(s);</div> -<div class="line"><a name="l05125"></a><span class="lineno"> 5125</span>  pal[i][3] = 255;</div> -<div class="line"><a name="l05126"></a><span class="lineno"> 5126</span>  }</div> -<div class="line"><a name="l05127"></a><span class="lineno"> 5127</span>  stbi__skip(s, info.offset - 14 - info.hsz - psize * (info.hsz == 12 ? 3 : 4));</div> -<div class="line"><a name="l05128"></a><span class="lineno"> 5128</span>  <span class="keywordflow">if</span> (info.bpp == 4) width = (s->img_x + 1) >> 1;</div> -<div class="line"><a name="l05129"></a><span class="lineno"> 5129</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (info.bpp == 8) width = s->img_x;</div> -<div class="line"><a name="l05130"></a><span class="lineno"> 5130</span>  <span class="keywordflow">else</span> { STBI_FREE(out); <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad bpp"</span>, <span class="stringliteral">"Corrupt BMP"</span>); }</div> -<div class="line"><a name="l05131"></a><span class="lineno"> 5131</span>  pad = (-width)&3;</div> -<div class="line"><a name="l05132"></a><span class="lineno"> 5132</span>  <span class="keywordflow">for</span> (j=0; j < (int) s->img_y; ++j) {</div> -<div class="line"><a name="l05133"></a><span class="lineno"> 5133</span>  <span class="keywordflow">for</span> (i=0; i < (int) s->img_x; i += 2) {</div> -<div class="line"><a name="l05134"></a><span class="lineno"> 5134</span>  <span class="keywordtype">int</span> v=stbi__get8(s),v2=0;</div> -<div class="line"><a name="l05135"></a><span class="lineno"> 5135</span>  <span class="keywordflow">if</span> (info.bpp == 4) {</div> -<div class="line"><a name="l05136"></a><span class="lineno"> 5136</span>  v2 = v & 15;</div> -<div class="line"><a name="l05137"></a><span class="lineno"> 5137</span>  v >>= 4;</div> -<div class="line"><a name="l05138"></a><span class="lineno"> 5138</span>  }</div> -<div class="line"><a name="l05139"></a><span class="lineno"> 5139</span>  out[z++] = pal[v][0];</div> -<div class="line"><a name="l05140"></a><span class="lineno"> 5140</span>  out[z++] = pal[v][1];</div> -<div class="line"><a name="l05141"></a><span class="lineno"> 5141</span>  out[z++] = pal[v][2];</div> -<div class="line"><a name="l05142"></a><span class="lineno"> 5142</span>  <span class="keywordflow">if</span> (target == 4) out[z++] = 255;</div> -<div class="line"><a name="l05143"></a><span class="lineno"> 5143</span>  <span class="keywordflow">if</span> (i+1 == (<span class="keywordtype">int</span>) s->img_x) <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l05144"></a><span class="lineno"> 5144</span>  v = (info.bpp == 8) ? stbi__get8(s) : v2;</div> -<div class="line"><a name="l05145"></a><span class="lineno"> 5145</span>  out[z++] = pal[v][0];</div> -<div class="line"><a name="l05146"></a><span class="lineno"> 5146</span>  out[z++] = pal[v][1];</div> -<div class="line"><a name="l05147"></a><span class="lineno"> 5147</span>  out[z++] = pal[v][2];</div> -<div class="line"><a name="l05148"></a><span class="lineno"> 5148</span>  <span class="keywordflow">if</span> (target == 4) out[z++] = 255;</div> -<div class="line"><a name="l05149"></a><span class="lineno"> 5149</span>  }</div> -<div class="line"><a name="l05150"></a><span class="lineno"> 5150</span>  stbi__skip(s, pad);</div> -<div class="line"><a name="l05151"></a><span class="lineno"> 5151</span>  }</div> -<div class="line"><a name="l05152"></a><span class="lineno"> 5152</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05153"></a><span class="lineno"> 5153</span>  <span class="keywordtype">int</span> rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0;</div> -<div class="line"><a name="l05154"></a><span class="lineno"> 5154</span>  <span class="keywordtype">int</span> z = 0;</div> -<div class="line"><a name="l05155"></a><span class="lineno"> 5155</span>  <span class="keywordtype">int</span> easy=0;</div> -<div class="line"><a name="l05156"></a><span class="lineno"> 5156</span>  stbi__skip(s, info.offset - 14 - info.hsz);</div> -<div class="line"><a name="l05157"></a><span class="lineno"> 5157</span>  <span class="keywordflow">if</span> (info.bpp == 24) width = 3 * s->img_x;</div> -<div class="line"><a name="l05158"></a><span class="lineno"> 5158</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (info.bpp == 16) width = 2*s->img_x;</div> -<div class="line"><a name="l05159"></a><span class="lineno"> 5159</span>  <span class="keywordflow">else</span> <span class="comment">/* bpp = 32 and pad = 0 */</span> width=0;</div> -<div class="line"><a name="l05160"></a><span class="lineno"> 5160</span>  pad = (-width) & 3;</div> -<div class="line"><a name="l05161"></a><span class="lineno"> 5161</span>  <span class="keywordflow">if</span> (info.bpp == 24) {</div> -<div class="line"><a name="l05162"></a><span class="lineno"> 5162</span>  easy = 1;</div> -<div class="line"><a name="l05163"></a><span class="lineno"> 5163</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (info.bpp == 32) {</div> -<div class="line"><a name="l05164"></a><span class="lineno"> 5164</span>  <span class="keywordflow">if</span> (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000)</div> -<div class="line"><a name="l05165"></a><span class="lineno"> 5165</span>  easy = 2;</div> -<div class="line"><a name="l05166"></a><span class="lineno"> 5166</span>  }</div> -<div class="line"><a name="l05167"></a><span class="lineno"> 5167</span>  <span class="keywordflow">if</span> (!easy) {</div> -<div class="line"><a name="l05168"></a><span class="lineno"> 5168</span>  <span class="keywordflow">if</span> (!mr || !mg || !mb) { STBI_FREE(out); <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad masks"</span>, <span class="stringliteral">"Corrupt BMP"</span>); }</div> -<div class="line"><a name="l05169"></a><span class="lineno"> 5169</span>  <span class="comment">// right shift amt to put high bit in position #7</span></div> -<div class="line"><a name="l05170"></a><span class="lineno"> 5170</span>  rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr);</div> -<div class="line"><a name="l05171"></a><span class="lineno"> 5171</span>  gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg);</div> -<div class="line"><a name="l05172"></a><span class="lineno"> 5172</span>  bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb);</div> -<div class="line"><a name="l05173"></a><span class="lineno"> 5173</span>  ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma);</div> -<div class="line"><a name="l05174"></a><span class="lineno"> 5174</span>  }</div> -<div class="line"><a name="l05175"></a><span class="lineno"> 5175</span>  <span class="keywordflow">for</span> (j=0; j < (int) s->img_y; ++j) {</div> -<div class="line"><a name="l05176"></a><span class="lineno"> 5176</span>  <span class="keywordflow">if</span> (easy) {</div> -<div class="line"><a name="l05177"></a><span class="lineno"> 5177</span>  <span class="keywordflow">for</span> (i=0; i < (int) s->img_x; ++i) {</div> -<div class="line"><a name="l05178"></a><span class="lineno"> 5178</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> a;</div> -<div class="line"><a name="l05179"></a><span class="lineno"> 5179</span>  out[z+2] = stbi__get8(s);</div> -<div class="line"><a name="l05180"></a><span class="lineno"> 5180</span>  out[z+1] = stbi__get8(s);</div> -<div class="line"><a name="l05181"></a><span class="lineno"> 5181</span>  out[z+0] = stbi__get8(s);</div> -<div class="line"><a name="l05182"></a><span class="lineno"> 5182</span>  z += 3;</div> -<div class="line"><a name="l05183"></a><span class="lineno"> 5183</span>  a = (easy == 2 ? stbi__get8(s) : 255);</div> -<div class="line"><a name="l05184"></a><span class="lineno"> 5184</span>  all_a |= a;</div> -<div class="line"><a name="l05185"></a><span class="lineno"> 5185</span>  <span class="keywordflow">if</span> (target == 4) out[z++] = a;</div> -<div class="line"><a name="l05186"></a><span class="lineno"> 5186</span>  }</div> -<div class="line"><a name="l05187"></a><span class="lineno"> 5187</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05188"></a><span class="lineno"> 5188</span>  <span class="keywordtype">int</span> bpp = info.bpp;</div> -<div class="line"><a name="l05189"></a><span class="lineno"> 5189</span>  <span class="keywordflow">for</span> (i=0; i < (int) s->img_x; ++i) {</div> -<div class="line"><a name="l05190"></a><span class="lineno"> 5190</span>  stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s));</div> -<div class="line"><a name="l05191"></a><span class="lineno"> 5191</span>  <span class="keywordtype">int</span> a;</div> -<div class="line"><a name="l05192"></a><span class="lineno"> 5192</span>  out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount));</div> -<div class="line"><a name="l05193"></a><span class="lineno"> 5193</span>  out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount));</div> -<div class="line"><a name="l05194"></a><span class="lineno"> 5194</span>  out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount));</div> -<div class="line"><a name="l05195"></a><span class="lineno"> 5195</span>  a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255);</div> -<div class="line"><a name="l05196"></a><span class="lineno"> 5196</span>  all_a |= a;</div> -<div class="line"><a name="l05197"></a><span class="lineno"> 5197</span>  <span class="keywordflow">if</span> (target == 4) out[z++] = STBI__BYTECAST(a);</div> -<div class="line"><a name="l05198"></a><span class="lineno"> 5198</span>  }</div> -<div class="line"><a name="l05199"></a><span class="lineno"> 5199</span>  }</div> -<div class="line"><a name="l05200"></a><span class="lineno"> 5200</span>  stbi__skip(s, pad);</div> -<div class="line"><a name="l05201"></a><span class="lineno"> 5201</span>  }</div> -<div class="line"><a name="l05202"></a><span class="lineno"> 5202</span>  }</div> -<div class="line"><a name="l05203"></a><span class="lineno"> 5203</span> </div> -<div class="line"><a name="l05204"></a><span class="lineno"> 5204</span>  <span class="comment">// if alpha channel is all 0s, replace with all 255s</span></div> -<div class="line"><a name="l05205"></a><span class="lineno"> 5205</span>  <span class="keywordflow">if</span> (target == 4 && all_a == 0)</div> -<div class="line"><a name="l05206"></a><span class="lineno"> 5206</span>  <span class="keywordflow">for</span> (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4)</div> -<div class="line"><a name="l05207"></a><span class="lineno"> 5207</span>  out[i] = 255;</div> -<div class="line"><a name="l05208"></a><span class="lineno"> 5208</span> </div> -<div class="line"><a name="l05209"></a><span class="lineno"> 5209</span>  <span class="keywordflow">if</span> (flip_vertically) {</div> -<div class="line"><a name="l05210"></a><span class="lineno"> 5210</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t;</div> -<div class="line"><a name="l05211"></a><span class="lineno"> 5211</span>  <span class="keywordflow">for</span> (j=0; j < (int) s->img_y>>1; ++j) {</div> -<div class="line"><a name="l05212"></a><span class="lineno"> 5212</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p1 = out + j *s->img_x*target;</div> -<div class="line"><a name="l05213"></a><span class="lineno"> 5213</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p2 = out + (s->img_y-1-j)*s->img_x*target;</div> -<div class="line"><a name="l05214"></a><span class="lineno"> 5214</span>  for (i=0; i < (int) s->img_x*target; ++i) {</div> -<div class="line"><a name="l05215"></a><span class="lineno"> 5215</span>  t = p1[i], p1[i] = p2[i], p2[i] = t;</div> -<div class="line"><a name="l05216"></a><span class="lineno"> 5216</span>  }</div> -<div class="line"><a name="l05217"></a><span class="lineno"> 5217</span>  }</div> -<div class="line"><a name="l05218"></a><span class="lineno"> 5218</span>  }</div> -<div class="line"><a name="l05219"></a><span class="lineno"> 5219</span> </div> -<div class="line"><a name="l05220"></a><span class="lineno"> 5220</span>  <span class="keywordflow">if</span> (req_comp && req_comp != target) {</div> -<div class="line"><a name="l05221"></a><span class="lineno"> 5221</span>  out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y);</div> -<div class="line"><a name="l05222"></a><span class="lineno"> 5222</span>  <span class="keywordflow">if</span> (out == NULL) <span class="keywordflow">return</span> out; <span class="comment">// stbi__convert_format frees input on failure</span></div> -<div class="line"><a name="l05223"></a><span class="lineno"> 5223</span>  }</div> -<div class="line"><a name="l05224"></a><span class="lineno"> 5224</span> </div> -<div class="line"><a name="l05225"></a><span class="lineno"> 5225</span>  *x = s->img_x;</div> -<div class="line"><a name="l05226"></a><span class="lineno"> 5226</span>  *y = s->img_y;</div> -<div class="line"><a name="l05227"></a><span class="lineno"> 5227</span>  <span class="keywordflow">if</span> (comp) *comp = s->img_n;</div> -<div class="line"><a name="l05228"></a><span class="lineno"> 5228</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l05229"></a><span class="lineno"> 5229</span> }</div> -<div class="line"><a name="l05230"></a><span class="lineno"> 5230</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l05231"></a><span class="lineno"> 5231</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l05232"></a><span class="lineno"> 5232</span> <span class="comment">// Targa Truevision - TGA</span></div> -<div class="line"><a name="l05233"></a><span class="lineno"> 5233</span> <span class="comment">// by Jonathan Dummer</span></div> -<div class="line"><a name="l05234"></a><span class="lineno"> 5234</span> <span class="preprocessor">#ifndef STBI_NO_TGA</span></div> -<div class="line"><a name="l05235"></a><span class="lineno"> 5235</span> <span class="preprocessor"></span><span class="comment">// returns STBI_rgb or whatever, 0 on error</span></div> -<div class="line"><a name="l05236"></a><span class="lineno"> 5236</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_get_comp(<span class="keywordtype">int</span> bits_per_pixel, <span class="keywordtype">int</span> is_grey, <span class="keywordtype">int</span>* is_rgb16)</div> +<div class="line"><a name="l04830"></a><span class="lineno"> 4830</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l04831"></a><span class="lineno"> 4831</span>  stbi__context *s;</div> +<div class="line"><a name="l04832"></a><span class="lineno"> 4832</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *idata, *expanded, *out;</div> +<div class="line"><a name="l04833"></a><span class="lineno"> 4833</span>  <span class="keywordtype">int</span> depth;</div> +<div class="line"><a name="l04834"></a><span class="lineno"> 4834</span> } stbi__png;</div> +<div class="line"><a name="l04835"></a><span class="lineno"> 4835</span> </div> +<div class="line"><a name="l04836"></a><span class="lineno"> 4836</span> <span class="keyword">enum</span> {</div> +<div class="line"><a name="l04837"></a><span class="lineno"> 4837</span>  STBI__F_none = 0,</div> +<div class="line"><a name="l04838"></a><span class="lineno"> 4838</span>  STBI__F_sub = 1,</div> +<div class="line"><a name="l04839"></a><span class="lineno"> 4839</span>  STBI__F_up = 2,</div> +<div class="line"><a name="l04840"></a><span class="lineno"> 4840</span>  STBI__F_avg = 3,</div> +<div class="line"><a name="l04841"></a><span class="lineno"> 4841</span>  STBI__F_paeth = 4,</div> +<div class="line"><a name="l04842"></a><span class="lineno"> 4842</span>  <span class="comment">// synthetic filters used for first scanline to avoid needing a dummy row of</span></div> +<div class="line"><a name="l04843"></a><span class="lineno"> 4843</span>  <span class="comment">// 0s</span></div> +<div class="line"><a name="l04844"></a><span class="lineno"> 4844</span>  STBI__F_avg_first,</div> +<div class="line"><a name="l04845"></a><span class="lineno"> 4845</span>  STBI__F_paeth_first</div> +<div class="line"><a name="l04846"></a><span class="lineno"> 4846</span> };</div> +<div class="line"><a name="l04847"></a><span class="lineno"> 4847</span> </div> +<div class="line"><a name="l04848"></a><span class="lineno"> 4848</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> first_row_filter[5] = {STBI__F_none, STBI__F_sub, STBI__F_none,</div> +<div class="line"><a name="l04849"></a><span class="lineno"> 4849</span>  STBI__F_avg_first, STBI__F_paeth_first};</div> +<div class="line"><a name="l04850"></a><span class="lineno"> 4850</span> </div> +<div class="line"><a name="l04851"></a><span class="lineno"> 4851</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__paeth(<span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b, <span class="keywordtype">int</span> c)</div> +<div class="line"><a name="l04852"></a><span class="lineno"> 4852</span> {</div> +<div class="line"><a name="l04853"></a><span class="lineno"> 4853</span>  <span class="keywordtype">int</span> p = a + b - c;</div> +<div class="line"><a name="l04854"></a><span class="lineno"> 4854</span>  <span class="keywordtype">int</span> pa = abs(p - a);</div> +<div class="line"><a name="l04855"></a><span class="lineno"> 4855</span>  <span class="keywordtype">int</span> pb = abs(p - b);</div> +<div class="line"><a name="l04856"></a><span class="lineno"> 4856</span>  <span class="keywordtype">int</span> pc = abs(p - c);</div> +<div class="line"><a name="l04857"></a><span class="lineno"> 4857</span>  <span class="keywordflow">if</span> (pa <= pb && pa <= pc)</div> +<div class="line"><a name="l04858"></a><span class="lineno"> 4858</span>  <span class="keywordflow">return</span> a;</div> +<div class="line"><a name="l04859"></a><span class="lineno"> 4859</span>  <span class="keywordflow">if</span> (pb <= pc)</div> +<div class="line"><a name="l04860"></a><span class="lineno"> 4860</span>  <span class="keywordflow">return</span> b;</div> +<div class="line"><a name="l04861"></a><span class="lineno"> 4861</span>  <span class="keywordflow">return</span> c;</div> +<div class="line"><a name="l04862"></a><span class="lineno"> 4862</span> }</div> +<div class="line"><a name="l04863"></a><span class="lineno"> 4863</span> </div> +<div class="line"><a name="l04864"></a><span class="lineno"> 4864</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> stbi__depth_scale_table[9] = {0, 0xff, 0x55, 0, 0x11,</div> +<div class="line"><a name="l04865"></a><span class="lineno"> 4865</span>  0, 0, 0, 0x01};</div> +<div class="line"><a name="l04866"></a><span class="lineno"> 4866</span> </div> +<div class="line"><a name="l04867"></a><span class="lineno"> 4867</span> <span class="comment">// create the png data from post-deflated data</span></div> +<div class="line"><a name="l04868"></a><span class="lineno"> 4868</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__create_png_image_raw(stbi__png *a, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *raw,</div> +<div class="line"><a name="l04869"></a><span class="lineno"> 4869</span>  stbi__uint32 raw_len, <span class="keywordtype">int</span> out_n,</div> +<div class="line"><a name="l04870"></a><span class="lineno"> 4870</span>  stbi__uint32 x, stbi__uint32 y, <span class="keywordtype">int</span> depth,</div> +<div class="line"><a name="l04871"></a><span class="lineno"> 4871</span>  <span class="keywordtype">int</span> color)</div> +<div class="line"><a name="l04872"></a><span class="lineno"> 4872</span> {</div> +<div class="line"><a name="l04873"></a><span class="lineno"> 4873</span>  <span class="keywordtype">int</span> bytes = (depth == 16 ? 2 : 1);</div> +<div class="line"><a name="l04874"></a><span class="lineno"> 4874</span>  stbi__context *s = a->s;</div> +<div class="line"><a name="l04875"></a><span class="lineno"> 4875</span>  stbi__uint32 i, j, stride = x * out_n * bytes;</div> +<div class="line"><a name="l04876"></a><span class="lineno"> 4876</span>  stbi__uint32 img_len, img_width_bytes;</div> +<div class="line"><a name="l04877"></a><span class="lineno"> 4877</span>  <span class="keywordtype">int</span> k;</div> +<div class="line"><a name="l04878"></a><span class="lineno"> 4878</span>  <span class="keywordtype">int</span> img_n = s->img_n; <span class="comment">// copy it into a local for later</span></div> +<div class="line"><a name="l04879"></a><span class="lineno"> 4879</span> </div> +<div class="line"><a name="l04880"></a><span class="lineno"> 4880</span>  <span class="keywordtype">int</span> output_bytes = out_n * bytes;</div> +<div class="line"><a name="l04881"></a><span class="lineno"> 4881</span>  <span class="keywordtype">int</span> filter_bytes = img_n * bytes;</div> +<div class="line"><a name="l04882"></a><span class="lineno"> 4882</span>  <span class="keywordtype">int</span> width = x;</div> +<div class="line"><a name="l04883"></a><span class="lineno"> 4883</span> </div> +<div class="line"><a name="l04884"></a><span class="lineno"> 4884</span>  STBI_ASSERT(out_n == s->img_n || out_n == s->img_n + 1);</div> +<div class="line"><a name="l04885"></a><span class="lineno"> 4885</span>  a->out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(</div> +<div class="line"><a name="l04886"></a><span class="lineno"> 4886</span>  x, y, output_bytes, 0); <span class="comment">// extra bytes to write off the end into</span></div> +<div class="line"><a name="l04887"></a><span class="lineno"> 4887</span>  <span class="keywordflow">if</span> (!a->out)</div> +<div class="line"><a name="l04888"></a><span class="lineno"> 4888</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l04889"></a><span class="lineno"> 4889</span> </div> +<div class="line"><a name="l04890"></a><span class="lineno"> 4890</span>  img_width_bytes = (((img_n * x * depth) + 7) >> 3);</div> +<div class="line"><a name="l04891"></a><span class="lineno"> 4891</span>  img_len = (img_width_bytes + 1) * y;</div> +<div class="line"><a name="l04892"></a><span class="lineno"> 4892</span>  <span class="comment">// we used to check for exact match between raw_len and img_len on</span></div> +<div class="line"><a name="l04893"></a><span class="lineno"> 4893</span>  <span class="comment">// non-interlaced PNGs, but issue #276 reported a PNG in the wild that had</span></div> +<div class="line"><a name="l04894"></a><span class="lineno"> 4894</span>  <span class="comment">// extra data at the end (all zeros), so just check for raw_len < img_len</span></div> +<div class="line"><a name="l04895"></a><span class="lineno"> 4895</span>  <span class="comment">// always.</span></div> +<div class="line"><a name="l04896"></a><span class="lineno"> 4896</span>  <span class="keywordflow">if</span> (raw_len < img_len)</div> +<div class="line"><a name="l04897"></a><span class="lineno"> 4897</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not enough pixels"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04898"></a><span class="lineno"> 4898</span> </div> +<div class="line"><a name="l04899"></a><span class="lineno"> 4899</span>  <span class="keywordflow">for</span> (j = 0; j < y; ++j) {</div> +<div class="line"><a name="l04900"></a><span class="lineno"> 4900</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *cur = a->out + stride * j;</div> +<div class="line"><a name="l04901"></a><span class="lineno"> 4901</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *prior;</div> +<div class="line"><a name="l04902"></a><span class="lineno"> 4902</span>  <span class="keywordtype">int</span> filter = *raw++;</div> +<div class="line"><a name="l04903"></a><span class="lineno"> 4903</span> </div> +<div class="line"><a name="l04904"></a><span class="lineno"> 4904</span>  <span class="keywordflow">if</span> (filter > 4)</div> +<div class="line"><a name="l04905"></a><span class="lineno"> 4905</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"invalid filter"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l04906"></a><span class="lineno"> 4906</span> </div> +<div class="line"><a name="l04907"></a><span class="lineno"> 4907</span>  <span class="keywordflow">if</span> (depth < 8) {</div> +<div class="line"><a name="l04908"></a><span class="lineno"> 4908</span>  STBI_ASSERT(img_width_bytes <= x);</div> +<div class="line"><a name="l04909"></a><span class="lineno"> 4909</span>  cur += x * out_n - img_width_bytes; <span class="comment">// store output to the rightmost</span></div> +<div class="line"><a name="l04910"></a><span class="lineno"> 4910</span>  <span class="comment">// img_len bytes, so we can</span></div> +<div class="line"><a name="l04911"></a><span class="lineno"> 4911</span>  <span class="comment">// decode in place</span></div> +<div class="line"><a name="l04912"></a><span class="lineno"> 4912</span>  filter_bytes = 1;</div> +<div class="line"><a name="l04913"></a><span class="lineno"> 4913</span>  width = img_width_bytes;</div> +<div class="line"><a name="l04914"></a><span class="lineno"> 4914</span>  }</div> +<div class="line"><a name="l04915"></a><span class="lineno"> 4915</span>  prior = cur - stride; <span class="comment">// bugfix: need to compute this after 'cur +='</span></div> +<div class="line"><a name="l04916"></a><span class="lineno"> 4916</span>  <span class="comment">// computation above</span></div> +<div class="line"><a name="l04917"></a><span class="lineno"> 4917</span> </div> +<div class="line"><a name="l04918"></a><span class="lineno"> 4918</span>  <span class="comment">// if first row, use special filter that doesn't sample previous row</span></div> +<div class="line"><a name="l04919"></a><span class="lineno"> 4919</span>  <span class="keywordflow">if</span> (j == 0)</div> +<div class="line"><a name="l04920"></a><span class="lineno"> 4920</span>  filter = first_row_filter[filter];</div> +<div class="line"><a name="l04921"></a><span class="lineno"> 4921</span> </div> +<div class="line"><a name="l04922"></a><span class="lineno"> 4922</span>  <span class="comment">// handle first byte explicitly</span></div> +<div class="line"><a name="l04923"></a><span class="lineno"> 4923</span>  <span class="keywordflow">for</span> (k = 0; k < filter_bytes; ++k) {</div> +<div class="line"><a name="l04924"></a><span class="lineno"> 4924</span>  <span class="keywordflow">switch</span> (filter) {</div> +<div class="line"><a name="l04925"></a><span class="lineno"> 4925</span>  <span class="keywordflow">case</span> STBI__F_none:</div> +<div class="line"><a name="l04926"></a><span class="lineno"> 4926</span>  cur[k] = raw[k];</div> +<div class="line"><a name="l04927"></a><span class="lineno"> 4927</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04928"></a><span class="lineno"> 4928</span>  <span class="keywordflow">case</span> STBI__F_sub:</div> +<div class="line"><a name="l04929"></a><span class="lineno"> 4929</span>  cur[k] = raw[k];</div> +<div class="line"><a name="l04930"></a><span class="lineno"> 4930</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04931"></a><span class="lineno"> 4931</span>  <span class="keywordflow">case</span> STBI__F_up:</div> +<div class="line"><a name="l04932"></a><span class="lineno"> 4932</span>  cur[k] = STBI__BYTECAST(raw[k] + prior[k]);</div> +<div class="line"><a name="l04933"></a><span class="lineno"> 4933</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04934"></a><span class="lineno"> 4934</span>  <span class="keywordflow">case</span> STBI__F_avg:</div> +<div class="line"><a name="l04935"></a><span class="lineno"> 4935</span>  cur[k] = STBI__BYTECAST(raw[k] + (prior[k] >> 1));</div> +<div class="line"><a name="l04936"></a><span class="lineno"> 4936</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04937"></a><span class="lineno"> 4937</span>  <span class="keywordflow">case</span> STBI__F_paeth:</div> +<div class="line"><a name="l04938"></a><span class="lineno"> 4938</span>  cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0, prior[k], 0));</div> +<div class="line"><a name="l04939"></a><span class="lineno"> 4939</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04940"></a><span class="lineno"> 4940</span>  <span class="keywordflow">case</span> STBI__F_avg_first:</div> +<div class="line"><a name="l04941"></a><span class="lineno"> 4941</span>  cur[k] = raw[k];</div> +<div class="line"><a name="l04942"></a><span class="lineno"> 4942</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04943"></a><span class="lineno"> 4943</span>  <span class="keywordflow">case</span> STBI__F_paeth_first:</div> +<div class="line"><a name="l04944"></a><span class="lineno"> 4944</span>  cur[k] = raw[k];</div> +<div class="line"><a name="l04945"></a><span class="lineno"> 4945</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04946"></a><span class="lineno"> 4946</span>  }</div> +<div class="line"><a name="l04947"></a><span class="lineno"> 4947</span>  }</div> +<div class="line"><a name="l04948"></a><span class="lineno"> 4948</span> </div> +<div class="line"><a name="l04949"></a><span class="lineno"> 4949</span>  <span class="keywordflow">if</span> (depth == 8) {</div> +<div class="line"><a name="l04950"></a><span class="lineno"> 4950</span>  <span class="keywordflow">if</span> (img_n != out_n)</div> +<div class="line"><a name="l04951"></a><span class="lineno"> 4951</span>  cur[img_n] = 255; <span class="comment">// first pixel</span></div> +<div class="line"><a name="l04952"></a><span class="lineno"> 4952</span>  raw += img_n;</div> +<div class="line"><a name="l04953"></a><span class="lineno"> 4953</span>  cur += out_n;</div> +<div class="line"><a name="l04954"></a><span class="lineno"> 4954</span>  prior += out_n;</div> +<div class="line"><a name="l04955"></a><span class="lineno"> 4955</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 16) {</div> +<div class="line"><a name="l04956"></a><span class="lineno"> 4956</span>  <span class="keywordflow">if</span> (img_n != out_n) {</div> +<div class="line"><a name="l04957"></a><span class="lineno"> 4957</span>  cur[filter_bytes] = 255; <span class="comment">// first pixel top byte</span></div> +<div class="line"><a name="l04958"></a><span class="lineno"> 4958</span>  cur[filter_bytes + 1] = 255; <span class="comment">// first pixel bottom byte</span></div> +<div class="line"><a name="l04959"></a><span class="lineno"> 4959</span>  }</div> +<div class="line"><a name="l04960"></a><span class="lineno"> 4960</span>  raw += filter_bytes;</div> +<div class="line"><a name="l04961"></a><span class="lineno"> 4961</span>  cur += output_bytes;</div> +<div class="line"><a name="l04962"></a><span class="lineno"> 4962</span>  prior += output_bytes;</div> +<div class="line"><a name="l04963"></a><span class="lineno"> 4963</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l04964"></a><span class="lineno"> 4964</span>  raw += 1;</div> +<div class="line"><a name="l04965"></a><span class="lineno"> 4965</span>  cur += 1;</div> +<div class="line"><a name="l04966"></a><span class="lineno"> 4966</span>  prior += 1;</div> +<div class="line"><a name="l04967"></a><span class="lineno"> 4967</span>  }</div> +<div class="line"><a name="l04968"></a><span class="lineno"> 4968</span> </div> +<div class="line"><a name="l04969"></a><span class="lineno"> 4969</span>  <span class="comment">// this is a little gross, so that we don't switch per-pixel or</span></div> +<div class="line"><a name="l04970"></a><span class="lineno"> 4970</span>  <span class="comment">// per-component</span></div> +<div class="line"><a name="l04971"></a><span class="lineno"> 4971</span>  <span class="keywordflow">if</span> (depth < 8 || img_n == out_n) {</div> +<div class="line"><a name="l04972"></a><span class="lineno"> 4972</span>  <span class="keywordtype">int</span> nk = (width - 1) * filter_bytes;</div> +<div class="line"><a name="l04973"></a><span class="lineno"> 4973</span> <span class="preprocessor">#define STBI__CASE(f) \</span></div> +<div class="line"><a name="l04974"></a><span class="lineno"> 4974</span> <span class="preprocessor"> case f: \</span></div> +<div class="line"><a name="l04975"></a><span class="lineno"> 4975</span> <span class="preprocessor"> for (k = 0; k < nk; ++k)</span></div> +<div class="line"><a name="l04976"></a><span class="lineno"> 4976</span> <span class="preprocessor"></span> <span class="keywordflow">switch</span> (filter) {</div> +<div class="line"><a name="l04977"></a><span class="lineno"> 4977</span>  <span class="comment">// "none" filter turns into a memcpy here; make that explicit.</span></div> +<div class="line"><a name="l04978"></a><span class="lineno"> 4978</span>  <span class="keywordflow">case</span> STBI__F_none:</div> +<div class="line"><a name="l04979"></a><span class="lineno"> 4979</span>  memcpy(cur, raw, nk);</div> +<div class="line"><a name="l04980"></a><span class="lineno"> 4980</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04981"></a><span class="lineno"> 4981</span>  STBI__CASE(STBI__F_sub)</div> +<div class="line"><a name="l04982"></a><span class="lineno"> 4982</span>  {</div> +<div class="line"><a name="l04983"></a><span class="lineno"> 4983</span>  cur[k] = STBI__BYTECAST(raw[k] + cur[k - filter_bytes]);</div> +<div class="line"><a name="l04984"></a><span class="lineno"> 4984</span>  }</div> +<div class="line"><a name="l04985"></a><span class="lineno"> 4985</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04986"></a><span class="lineno"> 4986</span>  STBI__CASE(STBI__F_up)</div> +<div class="line"><a name="l04987"></a><span class="lineno"> 4987</span>  {</div> +<div class="line"><a name="l04988"></a><span class="lineno"> 4988</span>  cur[k] = STBI__BYTECAST(raw[k] + prior[k]);</div> +<div class="line"><a name="l04989"></a><span class="lineno"> 4989</span>  }</div> +<div class="line"><a name="l04990"></a><span class="lineno"> 4990</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04991"></a><span class="lineno"> 4991</span>  STBI__CASE(STBI__F_avg)</div> +<div class="line"><a name="l04992"></a><span class="lineno"> 4992</span>  {</div> +<div class="line"><a name="l04993"></a><span class="lineno"> 4993</span>  cur[k] = STBI__BYTECAST(</div> +<div class="line"><a name="l04994"></a><span class="lineno"> 4994</span>  raw[k] + ((prior[k] + cur[k - filter_bytes]) >> 1));</div> +<div class="line"><a name="l04995"></a><span class="lineno"> 4995</span>  }</div> +<div class="line"><a name="l04996"></a><span class="lineno"> 4996</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l04997"></a><span class="lineno"> 4997</span>  STBI__CASE(STBI__F_paeth)</div> +<div class="line"><a name="l04998"></a><span class="lineno"> 4998</span>  {</div> +<div class="line"><a name="l04999"></a><span class="lineno"> 4999</span>  cur[k] = STBI__BYTECAST(</div> +<div class="line"><a name="l05000"></a><span class="lineno"> 5000</span>  raw[k] + stbi__paeth(cur[k - filter_bytes], prior[k],</div> +<div class="line"><a name="l05001"></a><span class="lineno"> 5001</span>  prior[k - filter_bytes]));</div> +<div class="line"><a name="l05002"></a><span class="lineno"> 5002</span>  }</div> +<div class="line"><a name="l05003"></a><span class="lineno"> 5003</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05004"></a><span class="lineno"> 5004</span>  STBI__CASE(STBI__F_avg_first)</div> +<div class="line"><a name="l05005"></a><span class="lineno"> 5005</span>  {</div> +<div class="line"><a name="l05006"></a><span class="lineno"> 5006</span>  cur[k] =</div> +<div class="line"><a name="l05007"></a><span class="lineno"> 5007</span>  STBI__BYTECAST(raw[k] + (cur[k - filter_bytes] >> 1));</div> +<div class="line"><a name="l05008"></a><span class="lineno"> 5008</span>  }</div> +<div class="line"><a name="l05009"></a><span class="lineno"> 5009</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05010"></a><span class="lineno"> 5010</span>  STBI__CASE(STBI__F_paeth_first)</div> +<div class="line"><a name="l05011"></a><span class="lineno"> 5011</span>  {</div> +<div class="line"><a name="l05012"></a><span class="lineno"> 5012</span>  cur[k] = STBI__BYTECAST(</div> +<div class="line"><a name="l05013"></a><span class="lineno"> 5013</span>  raw[k] + stbi__paeth(cur[k - filter_bytes], 0, 0));</div> +<div class="line"><a name="l05014"></a><span class="lineno"> 5014</span>  }</div> +<div class="line"><a name="l05015"></a><span class="lineno"> 5015</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05016"></a><span class="lineno"> 5016</span>  }</div> +<div class="line"><a name="l05017"></a><span class="lineno"> 5017</span> <span class="preprocessor">#undef STBI__CASE</span></div> +<div class="line"><a name="l05018"></a><span class="lineno"> 5018</span> <span class="preprocessor"></span> raw += nk;</div> +<div class="line"><a name="l05019"></a><span class="lineno"> 5019</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05020"></a><span class="lineno"> 5020</span>  STBI_ASSERT(img_n + 1 == out_n);</div> +<div class="line"><a name="l05021"></a><span class="lineno"> 5021</span> <span class="preprocessor">#define STBI__CASE(f) \</span></div> +<div class="line"><a name="l05022"></a><span class="lineno"> 5022</span> <span class="preprocessor"> case f: \</span></div> +<div class="line"><a name="l05023"></a><span class="lineno"> 5023</span> <span class="preprocessor"> for (i = x - 1; i >= 1; --i, cur[filter_bytes] = 255, \</span></div> +<div class="line"><a name="l05024"></a><span class="lineno"> 5024</span> <span class="preprocessor"> raw += filter_bytes, cur += output_bytes, prior += output_bytes) \</span></div> +<div class="line"><a name="l05025"></a><span class="lineno"> 5025</span> <span class="preprocessor"> for (k = 0; k < filter_bytes; ++k)</span></div> +<div class="line"><a name="l05026"></a><span class="lineno"> 5026</span> <span class="preprocessor"></span> <span class="keywordflow">switch</span> (filter) {</div> +<div class="line"><a name="l05027"></a><span class="lineno"> 5027</span>  STBI__CASE(STBI__F_none) { cur[k] = raw[k]; }</div> +<div class="line"><a name="l05028"></a><span class="lineno"> 5028</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05029"></a><span class="lineno"> 5029</span>  STBI__CASE(STBI__F_sub)</div> +<div class="line"><a name="l05030"></a><span class="lineno"> 5030</span>  {</div> +<div class="line"><a name="l05031"></a><span class="lineno"> 5031</span>  cur[k] = STBI__BYTECAST(raw[k] + cur[k - output_bytes]);</div> +<div class="line"><a name="l05032"></a><span class="lineno"> 5032</span>  }</div> +<div class="line"><a name="l05033"></a><span class="lineno"> 5033</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05034"></a><span class="lineno"> 5034</span>  STBI__CASE(STBI__F_up)</div> +<div class="line"><a name="l05035"></a><span class="lineno"> 5035</span>  {</div> +<div class="line"><a name="l05036"></a><span class="lineno"> 5036</span>  cur[k] = STBI__BYTECAST(raw[k] + prior[k]);</div> +<div class="line"><a name="l05037"></a><span class="lineno"> 5037</span>  }</div> +<div class="line"><a name="l05038"></a><span class="lineno"> 5038</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05039"></a><span class="lineno"> 5039</span>  STBI__CASE(STBI__F_avg)</div> +<div class="line"><a name="l05040"></a><span class="lineno"> 5040</span>  {</div> +<div class="line"><a name="l05041"></a><span class="lineno"> 5041</span>  cur[k] = STBI__BYTECAST(</div> +<div class="line"><a name="l05042"></a><span class="lineno"> 5042</span>  raw[k] + ((prior[k] + cur[k - output_bytes]) >> 1));</div> +<div class="line"><a name="l05043"></a><span class="lineno"> 5043</span>  }</div> +<div class="line"><a name="l05044"></a><span class="lineno"> 5044</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05045"></a><span class="lineno"> 5045</span>  STBI__CASE(STBI__F_paeth)</div> +<div class="line"><a name="l05046"></a><span class="lineno"> 5046</span>  {</div> +<div class="line"><a name="l05047"></a><span class="lineno"> 5047</span>  cur[k] = STBI__BYTECAST(</div> +<div class="line"><a name="l05048"></a><span class="lineno"> 5048</span>  raw[k] + stbi__paeth(cur[k - output_bytes], prior[k],</div> +<div class="line"><a name="l05049"></a><span class="lineno"> 5049</span>  prior[k - output_bytes]));</div> +<div class="line"><a name="l05050"></a><span class="lineno"> 5050</span>  }</div> +<div class="line"><a name="l05051"></a><span class="lineno"> 5051</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05052"></a><span class="lineno"> 5052</span>  STBI__CASE(STBI__F_avg_first)</div> +<div class="line"><a name="l05053"></a><span class="lineno"> 5053</span>  {</div> +<div class="line"><a name="l05054"></a><span class="lineno"> 5054</span>  cur[k] =</div> +<div class="line"><a name="l05055"></a><span class="lineno"> 5055</span>  STBI__BYTECAST(raw[k] + (cur[k - output_bytes] >> 1));</div> +<div class="line"><a name="l05056"></a><span class="lineno"> 5056</span>  }</div> +<div class="line"><a name="l05057"></a><span class="lineno"> 5057</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05058"></a><span class="lineno"> 5058</span>  STBI__CASE(STBI__F_paeth_first)</div> +<div class="line"><a name="l05059"></a><span class="lineno"> 5059</span>  {</div> +<div class="line"><a name="l05060"></a><span class="lineno"> 5060</span>  cur[k] = STBI__BYTECAST(</div> +<div class="line"><a name="l05061"></a><span class="lineno"> 5061</span>  raw[k] + stbi__paeth(cur[k - output_bytes], 0, 0));</div> +<div class="line"><a name="l05062"></a><span class="lineno"> 5062</span>  }</div> +<div class="line"><a name="l05063"></a><span class="lineno"> 5063</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05064"></a><span class="lineno"> 5064</span>  }</div> +<div class="line"><a name="l05065"></a><span class="lineno"> 5065</span> <span class="preprocessor">#undef STBI__CASE</span></div> +<div class="line"><a name="l05066"></a><span class="lineno"> 5066</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l05067"></a><span class="lineno"> 5067</span>  <span class="comment">// the loop above sets the high byte of the pixels' alpha, but for</span></div> +<div class="line"><a name="l05068"></a><span class="lineno"> 5068</span>  <span class="comment">// 16 bit png files we also need the low byte set. we'll do that</span></div> +<div class="line"><a name="l05069"></a><span class="lineno"> 5069</span>  <span class="comment">// here.</span></div> +<div class="line"><a name="l05070"></a><span class="lineno"> 5070</span>  <span class="keywordflow">if</span> (depth == 16) {</div> +<div class="line"><a name="l05071"></a><span class="lineno"> 5071</span>  cur = a->out +</div> +<div class="line"><a name="l05072"></a><span class="lineno"> 5072</span>  stride * j; <span class="comment">// start at the beginning of the row again</span></div> +<div class="line"><a name="l05073"></a><span class="lineno"> 5073</span>  <span class="keywordflow">for</span> (i = 0; i < x; ++i, cur += output_bytes) {</div> +<div class="line"><a name="l05074"></a><span class="lineno"> 5074</span>  cur[filter_bytes + 1] = 255;</div> +<div class="line"><a name="l05075"></a><span class="lineno"> 5075</span>  }</div> +<div class="line"><a name="l05076"></a><span class="lineno"> 5076</span>  }</div> +<div class="line"><a name="l05077"></a><span class="lineno"> 5077</span>  }</div> +<div class="line"><a name="l05078"></a><span class="lineno"> 5078</span>  }</div> +<div class="line"><a name="l05079"></a><span class="lineno"> 5079</span> </div> +<div class="line"><a name="l05080"></a><span class="lineno"> 5080</span>  <span class="comment">// we make a separate pass to expand bits to pixels; for performance,</span></div> +<div class="line"><a name="l05081"></a><span class="lineno"> 5081</span>  <span class="comment">// this could run two scanlines behind the above code, so it won't</span></div> +<div class="line"><a name="l05082"></a><span class="lineno"> 5082</span>  <span class="comment">// intefere with filtering but will still be in the cache.</span></div> +<div class="line"><a name="l05083"></a><span class="lineno"> 5083</span>  <span class="keywordflow">if</span> (depth < 8) {</div> +<div class="line"><a name="l05084"></a><span class="lineno"> 5084</span>  <span class="keywordflow">for</span> (j = 0; j < y; ++j) {</div> +<div class="line"><a name="l05085"></a><span class="lineno"> 5085</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *cur = a->out + stride * j;</div> +<div class="line"><a name="l05086"></a><span class="lineno"> 5086</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *in = a->out + stride * j + x * out_n - img_width_bytes;</div> +<div class="line"><a name="l05087"></a><span class="lineno"> 5087</span>  <span class="comment">// unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the</span></div> +<div class="line"><a name="l05088"></a><span class="lineno"> 5088</span>  <span class="comment">// common 8-bit path optimal at minimal cost for 1/2/4-bit png</span></div> +<div class="line"><a name="l05089"></a><span class="lineno"> 5089</span>  <span class="comment">// guarante byte alignment, if width is not multiple of 8/4/2 we'll</span></div> +<div class="line"><a name="l05090"></a><span class="lineno"> 5090</span>  <span class="comment">// decode dummy trailing data that will be skipped in the later loop</span></div> +<div class="line"><a name="l05091"></a><span class="lineno"> 5091</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> scale = (color == 0)</div> +<div class="line"><a name="l05092"></a><span class="lineno"> 5092</span>  ? stbi__depth_scale_table[depth]</div> +<div class="line"><a name="l05093"></a><span class="lineno"> 5093</span>  : 1; <span class="comment">// scale grayscale values to 0..255 range</span></div> +<div class="line"><a name="l05094"></a><span class="lineno"> 5094</span> </div> +<div class="line"><a name="l05095"></a><span class="lineno"> 5095</span>  <span class="comment">// note that the final byte might overshoot and write more data than</span></div> +<div class="line"><a name="l05096"></a><span class="lineno"> 5096</span>  <span class="comment">// desired. we can allocate enough data that this never writes out</span></div> +<div class="line"><a name="l05097"></a><span class="lineno"> 5097</span>  <span class="comment">// of memory, but it could also overwrite the next scanline. can it</span></div> +<div class="line"><a name="l05098"></a><span class="lineno"> 5098</span>  <span class="comment">// overwrite non-empty data on the next scanline? yes, consider</span></div> +<div class="line"><a name="l05099"></a><span class="lineno"> 5099</span>  <span class="comment">// 1-pixel-wide scanlines with 1-bit-per-pixel. so we need to</span></div> +<div class="line"><a name="l05100"></a><span class="lineno"> 5100</span>  <span class="comment">// explicitly clamp the final ones</span></div> +<div class="line"><a name="l05101"></a><span class="lineno"> 5101</span> </div> +<div class="line"><a name="l05102"></a><span class="lineno"> 5102</span>  <span class="keywordflow">if</span> (depth == 4) {</div> +<div class="line"><a name="l05103"></a><span class="lineno"> 5103</span>  <span class="keywordflow">for</span> (k = x * img_n; k >= 2; k -= 2, ++in) {</div> +<div class="line"><a name="l05104"></a><span class="lineno"> 5104</span>  *cur++ = scale * ((*in >> 4));</div> +<div class="line"><a name="l05105"></a><span class="lineno"> 5105</span>  *cur++ = scale * ((*in) & 0x0f);</div> +<div class="line"><a name="l05106"></a><span class="lineno"> 5106</span>  }</div> +<div class="line"><a name="l05107"></a><span class="lineno"> 5107</span>  <span class="keywordflow">if</span> (k > 0)</div> +<div class="line"><a name="l05108"></a><span class="lineno"> 5108</span>  *cur++ = scale * ((*in >> 4));</div> +<div class="line"><a name="l05109"></a><span class="lineno"> 5109</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 2) {</div> +<div class="line"><a name="l05110"></a><span class="lineno"> 5110</span>  <span class="keywordflow">for</span> (k = x * img_n; k >= 4; k -= 4, ++in) {</div> +<div class="line"><a name="l05111"></a><span class="lineno"> 5111</span>  *cur++ = scale * ((*in >> 6));</div> +<div class="line"><a name="l05112"></a><span class="lineno"> 5112</span>  *cur++ = scale * ((*in >> 4) & 0x03);</div> +<div class="line"><a name="l05113"></a><span class="lineno"> 5113</span>  *cur++ = scale * ((*in >> 2) & 0x03);</div> +<div class="line"><a name="l05114"></a><span class="lineno"> 5114</span>  *cur++ = scale * ((*in) & 0x03);</div> +<div class="line"><a name="l05115"></a><span class="lineno"> 5115</span>  }</div> +<div class="line"><a name="l05116"></a><span class="lineno"> 5116</span>  <span class="keywordflow">if</span> (k > 0)</div> +<div class="line"><a name="l05117"></a><span class="lineno"> 5117</span>  *cur++ = scale * ((*in >> 6));</div> +<div class="line"><a name="l05118"></a><span class="lineno"> 5118</span>  <span class="keywordflow">if</span> (k > 1)</div> +<div class="line"><a name="l05119"></a><span class="lineno"> 5119</span>  *cur++ = scale * ((*in >> 4) & 0x03);</div> +<div class="line"><a name="l05120"></a><span class="lineno"> 5120</span>  <span class="keywordflow">if</span> (k > 2)</div> +<div class="line"><a name="l05121"></a><span class="lineno"> 5121</span>  *cur++ = scale * ((*in >> 2) & 0x03);</div> +<div class="line"><a name="l05122"></a><span class="lineno"> 5122</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 1) {</div> +<div class="line"><a name="l05123"></a><span class="lineno"> 5123</span>  <span class="keywordflow">for</span> (k = x * img_n; k >= 8; k -= 8, ++in) {</div> +<div class="line"><a name="l05124"></a><span class="lineno"> 5124</span>  *cur++ = scale * ((*in >> 7));</div> +<div class="line"><a name="l05125"></a><span class="lineno"> 5125</span>  *cur++ = scale * ((*in >> 6) & 0x01);</div> +<div class="line"><a name="l05126"></a><span class="lineno"> 5126</span>  *cur++ = scale * ((*in >> 5) & 0x01);</div> +<div class="line"><a name="l05127"></a><span class="lineno"> 5127</span>  *cur++ = scale * ((*in >> 4) & 0x01);</div> +<div class="line"><a name="l05128"></a><span class="lineno"> 5128</span>  *cur++ = scale * ((*in >> 3) & 0x01);</div> +<div class="line"><a name="l05129"></a><span class="lineno"> 5129</span>  *cur++ = scale * ((*in >> 2) & 0x01);</div> +<div class="line"><a name="l05130"></a><span class="lineno"> 5130</span>  *cur++ = scale * ((*in >> 1) & 0x01);</div> +<div class="line"><a name="l05131"></a><span class="lineno"> 5131</span>  *cur++ = scale * ((*in) & 0x01);</div> +<div class="line"><a name="l05132"></a><span class="lineno"> 5132</span>  }</div> +<div class="line"><a name="l05133"></a><span class="lineno"> 5133</span>  <span class="keywordflow">if</span> (k > 0)</div> +<div class="line"><a name="l05134"></a><span class="lineno"> 5134</span>  *cur++ = scale * ((*in >> 7));</div> +<div class="line"><a name="l05135"></a><span class="lineno"> 5135</span>  <span class="keywordflow">if</span> (k > 1)</div> +<div class="line"><a name="l05136"></a><span class="lineno"> 5136</span>  *cur++ = scale * ((*in >> 6) & 0x01);</div> +<div class="line"><a name="l05137"></a><span class="lineno"> 5137</span>  <span class="keywordflow">if</span> (k > 2)</div> +<div class="line"><a name="l05138"></a><span class="lineno"> 5138</span>  *cur++ = scale * ((*in >> 5) & 0x01);</div> +<div class="line"><a name="l05139"></a><span class="lineno"> 5139</span>  <span class="keywordflow">if</span> (k > 3)</div> +<div class="line"><a name="l05140"></a><span class="lineno"> 5140</span>  *cur++ = scale * ((*in >> 4) & 0x01);</div> +<div class="line"><a name="l05141"></a><span class="lineno"> 5141</span>  <span class="keywordflow">if</span> (k > 4)</div> +<div class="line"><a name="l05142"></a><span class="lineno"> 5142</span>  *cur++ = scale * ((*in >> 3) & 0x01);</div> +<div class="line"><a name="l05143"></a><span class="lineno"> 5143</span>  <span class="keywordflow">if</span> (k > 5)</div> +<div class="line"><a name="l05144"></a><span class="lineno"> 5144</span>  *cur++ = scale * ((*in >> 2) & 0x01);</div> +<div class="line"><a name="l05145"></a><span class="lineno"> 5145</span>  <span class="keywordflow">if</span> (k > 6)</div> +<div class="line"><a name="l05146"></a><span class="lineno"> 5146</span>  *cur++ = scale * ((*in >> 1) & 0x01);</div> +<div class="line"><a name="l05147"></a><span class="lineno"> 5147</span>  }</div> +<div class="line"><a name="l05148"></a><span class="lineno"> 5148</span>  <span class="keywordflow">if</span> (img_n != out_n) {</div> +<div class="line"><a name="l05149"></a><span class="lineno"> 5149</span>  <span class="keywordtype">int</span> q;</div> +<div class="line"><a name="l05150"></a><span class="lineno"> 5150</span>  <span class="comment">// insert alpha = 255</span></div> +<div class="line"><a name="l05151"></a><span class="lineno"> 5151</span>  cur = a->out + stride * j;</div> +<div class="line"><a name="l05152"></a><span class="lineno"> 5152</span>  <span class="keywordflow">if</span> (img_n == 1) {</div> +<div class="line"><a name="l05153"></a><span class="lineno"> 5153</span>  <span class="keywordflow">for</span> (q = x - 1; q >= 0; --q) {</div> +<div class="line"><a name="l05154"></a><span class="lineno"> 5154</span>  cur[q * 2 + 1] = 255;</div> +<div class="line"><a name="l05155"></a><span class="lineno"> 5155</span>  cur[q * 2 + 0] = cur[q];</div> +<div class="line"><a name="l05156"></a><span class="lineno"> 5156</span>  }</div> +<div class="line"><a name="l05157"></a><span class="lineno"> 5157</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05158"></a><span class="lineno"> 5158</span>  STBI_ASSERT(img_n == 3);</div> +<div class="line"><a name="l05159"></a><span class="lineno"> 5159</span>  <span class="keywordflow">for</span> (q = x - 1; q >= 0; --q) {</div> +<div class="line"><a name="l05160"></a><span class="lineno"> 5160</span>  cur[q * 4 + 3] = 255;</div> +<div class="line"><a name="l05161"></a><span class="lineno"> 5161</span>  cur[q * 4 + 2] = cur[q * 3 + 2];</div> +<div class="line"><a name="l05162"></a><span class="lineno"> 5162</span>  cur[q * 4 + 1] = cur[q * 3 + 1];</div> +<div class="line"><a name="l05163"></a><span class="lineno"> 5163</span>  cur[q * 4 + 0] = cur[q * 3 + 0];</div> +<div class="line"><a name="l05164"></a><span class="lineno"> 5164</span>  }</div> +<div class="line"><a name="l05165"></a><span class="lineno"> 5165</span>  }</div> +<div class="line"><a name="l05166"></a><span class="lineno"> 5166</span>  }</div> +<div class="line"><a name="l05167"></a><span class="lineno"> 5167</span>  }</div> +<div class="line"><a name="l05168"></a><span class="lineno"> 5168</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (depth == 16) {</div> +<div class="line"><a name="l05169"></a><span class="lineno"> 5169</span>  <span class="comment">// force the image data from big-endian to platform-native.</span></div> +<div class="line"><a name="l05170"></a><span class="lineno"> 5170</span>  <span class="comment">// this is done in a separate pass due to the decoding relying</span></div> +<div class="line"><a name="l05171"></a><span class="lineno"> 5171</span>  <span class="comment">// on the data being untouched, but could probably be done</span></div> +<div class="line"><a name="l05172"></a><span class="lineno"> 5172</span>  <span class="comment">// per-line during decode if care is taken.</span></div> +<div class="line"><a name="l05173"></a><span class="lineno"> 5173</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *cur = a->out;</div> +<div class="line"><a name="l05174"></a><span class="lineno"> 5174</span>  stbi__uint16 *cur16 = (stbi__uint16 *)cur;</div> +<div class="line"><a name="l05175"></a><span class="lineno"> 5175</span> </div> +<div class="line"><a name="l05176"></a><span class="lineno"> 5176</span>  <span class="keywordflow">for</span> (i = 0; i < x * y * out_n; ++i, cur16++, cur += 2) {</div> +<div class="line"><a name="l05177"></a><span class="lineno"> 5177</span>  *cur16 = (cur[0] << 8) | cur[1];</div> +<div class="line"><a name="l05178"></a><span class="lineno"> 5178</span>  }</div> +<div class="line"><a name="l05179"></a><span class="lineno"> 5179</span>  }</div> +<div class="line"><a name="l05180"></a><span class="lineno"> 5180</span> </div> +<div class="line"><a name="l05181"></a><span class="lineno"> 5181</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05182"></a><span class="lineno"> 5182</span> }</div> +<div class="line"><a name="l05183"></a><span class="lineno"> 5183</span> </div> +<div class="line"><a name="l05184"></a><span class="lineno"> 5184</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__create_png_image(stbi__png *a, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *image_data,</div> +<div class="line"><a name="l05185"></a><span class="lineno"> 5185</span>  stbi__uint32 image_data_len, <span class="keywordtype">int</span> out_n,</div> +<div class="line"><a name="l05186"></a><span class="lineno"> 5186</span>  <span class="keywordtype">int</span> depth, <span class="keywordtype">int</span> color, <span class="keywordtype">int</span> interlaced)</div> +<div class="line"><a name="l05187"></a><span class="lineno"> 5187</span> {</div> +<div class="line"><a name="l05188"></a><span class="lineno"> 5188</span>  <span class="keywordtype">int</span> bytes = (depth == 16 ? 2 : 1);</div> +<div class="line"><a name="l05189"></a><span class="lineno"> 5189</span>  <span class="keywordtype">int</span> out_bytes = out_n * bytes;</div> +<div class="line"><a name="l05190"></a><span class="lineno"> 5190</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *<span class="keyword">final</span>;</div> +<div class="line"><a name="l05191"></a><span class="lineno"> 5191</span>  <span class="keywordtype">int</span> p;</div> +<div class="line"><a name="l05192"></a><span class="lineno"> 5192</span>  <span class="keywordflow">if</span> (!interlaced)</div> +<div class="line"><a name="l05193"></a><span class="lineno"> 5193</span>  <span class="keywordflow">return</span> stbi__create_png_image_raw(a, image_data, image_data_len, out_n,</div> +<div class="line"><a name="l05194"></a><span class="lineno"> 5194</span>  a->s->img_x, a->s->img_y, depth,</div> +<div class="line"><a name="l05195"></a><span class="lineno"> 5195</span>  color);</div> +<div class="line"><a name="l05196"></a><span class="lineno"> 5196</span> </div> +<div class="line"><a name="l05197"></a><span class="lineno"> 5197</span>  <span class="comment">// de-interlacing</span></div> +<div class="line"><a name="l05198"></a><span class="lineno"> 5198</span>  <span class="keyword">final</span> =</div> +<div class="line"><a name="l05199"></a><span class="lineno"> 5199</span>  (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0);</div> +<div class="line"><a name="l05200"></a><span class="lineno"> 5200</span>  <span class="keywordflow">for</span> (p = 0; p < 7; ++p) {</div> +<div class="line"><a name="l05201"></a><span class="lineno"> 5201</span>  <span class="keywordtype">int</span> xorig[] = {0, 4, 0, 2, 0, 1, 0};</div> +<div class="line"><a name="l05202"></a><span class="lineno"> 5202</span>  <span class="keywordtype">int</span> yorig[] = {0, 0, 4, 0, 2, 0, 1};</div> +<div class="line"><a name="l05203"></a><span class="lineno"> 5203</span>  <span class="keywordtype">int</span> xspc[] = {8, 8, 4, 4, 2, 2, 1};</div> +<div class="line"><a name="l05204"></a><span class="lineno"> 5204</span>  <span class="keywordtype">int</span> yspc[] = {8, 8, 8, 4, 4, 2, 2};</div> +<div class="line"><a name="l05205"></a><span class="lineno"> 5205</span>  <span class="keywordtype">int</span> i, j, x, y;</div> +<div class="line"><a name="l05206"></a><span class="lineno"> 5206</span>  <span class="comment">// pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1</span></div> +<div class="line"><a name="l05207"></a><span class="lineno"> 5207</span>  x = (a->s->img_x - xorig[p] + xspc[p] - 1) / xspc[p];</div> +<div class="line"><a name="l05208"></a><span class="lineno"> 5208</span>  y = (a->s->img_y - yorig[p] + yspc[p] - 1) / yspc[p];</div> +<div class="line"><a name="l05209"></a><span class="lineno"> 5209</span>  <span class="keywordflow">if</span> (x && y) {</div> +<div class="line"><a name="l05210"></a><span class="lineno"> 5210</span>  stbi__uint32 img_len =</div> +<div class="line"><a name="l05211"></a><span class="lineno"> 5211</span>  ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y;</div> +<div class="line"><a name="l05212"></a><span class="lineno"> 5212</span>  <span class="keywordflow">if</span> (!stbi__create_png_image_raw(a, image_data, image_data_len,</div> +<div class="line"><a name="l05213"></a><span class="lineno"> 5213</span>  out_n, x, y, depth, color)) {</div> +<div class="line"><a name="l05214"></a><span class="lineno"> 5214</span>  STBI_FREE(<span class="keyword">final</span>);</div> +<div class="line"><a name="l05215"></a><span class="lineno"> 5215</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05216"></a><span class="lineno"> 5216</span>  }</div> +<div class="line"><a name="l05217"></a><span class="lineno"> 5217</span>  <span class="keywordflow">for</span> (j = 0; j < y; ++j) {</div> +<div class="line"><a name="l05218"></a><span class="lineno"> 5218</span>  <span class="keywordflow">for</span> (i = 0; i < x; ++i) {</div> +<div class="line"><a name="l05219"></a><span class="lineno"> 5219</span>  <span class="keywordtype">int</span> out_y = j * yspc[p] + yorig[p];</div> +<div class="line"><a name="l05220"></a><span class="lineno"> 5220</span>  <span class="keywordtype">int</span> out_x = i * xspc[p] + xorig[p];</div> +<div class="line"><a name="l05221"></a><span class="lineno"> 5221</span>  memcpy(<span class="keyword">final</span> + out_y * a->s->img_x * out_bytes +</div> +<div class="line"><a name="l05222"></a><span class="lineno"> 5222</span>  out_x * out_bytes,</div> +<div class="line"><a name="l05223"></a><span class="lineno"> 5223</span>  a->out + (j * x + i) * out_bytes, out_bytes);</div> +<div class="line"><a name="l05224"></a><span class="lineno"> 5224</span>  }</div> +<div class="line"><a name="l05225"></a><span class="lineno"> 5225</span>  }</div> +<div class="line"><a name="l05226"></a><span class="lineno"> 5226</span>  STBI_FREE(a->out);</div> +<div class="line"><a name="l05227"></a><span class="lineno"> 5227</span>  image_data += img_len;</div> +<div class="line"><a name="l05228"></a><span class="lineno"> 5228</span>  image_data_len -= img_len;</div> +<div class="line"><a name="l05229"></a><span class="lineno"> 5229</span>  }</div> +<div class="line"><a name="l05230"></a><span class="lineno"> 5230</span>  }</div> +<div class="line"><a name="l05231"></a><span class="lineno"> 5231</span>  a->out = <span class="keyword">final</span>;</div> +<div class="line"><a name="l05232"></a><span class="lineno"> 5232</span> </div> +<div class="line"><a name="l05233"></a><span class="lineno"> 5233</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05234"></a><span class="lineno"> 5234</span> }</div> +<div class="line"><a name="l05235"></a><span class="lineno"> 5235</span> </div> +<div class="line"><a name="l05236"></a><span class="lineno"> 5236</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__compute_transparency(stbi__png *z, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> tc[3], <span class="keywordtype">int</span> out_n)</div> <div class="line"><a name="l05237"></a><span class="lineno"> 5237</span> {</div> -<div class="line"><a name="l05238"></a><span class="lineno"> 5238</span>  <span class="comment">// only RGB or RGBA (incl. 16bit) or grey allowed</span></div> -<div class="line"><a name="l05239"></a><span class="lineno"> 5239</span>  <span class="keywordflow">if</span>(is_rgb16) *is_rgb16 = 0;</div> -<div class="line"><a name="l05240"></a><span class="lineno"> 5240</span>  <span class="keywordflow">switch</span>(bits_per_pixel) {</div> -<div class="line"><a name="l05241"></a><span class="lineno"> 5241</span>  <span class="keywordflow">case</span> 8: <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55bad1eb95ca1fa7706bf732bf35a0ed40aa">STBI_grey</a>;</div> -<div class="line"><a name="l05242"></a><span class="lineno"> 5242</span>  <span class="keywordflow">case</span> 16: <span class="keywordflow">if</span>(is_grey) <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baf5829d16d4cca6077465c5abd346e2f8">STBI_grey_alpha</a>;</div> -<div class="line"><a name="l05243"></a><span class="lineno"> 5243</span>  <span class="comment">// else: fall-through</span></div> -<div class="line"><a name="l05244"></a><span class="lineno"> 5244</span>  <span class="keywordflow">case</span> 15: <span class="keywordflow">if</span>(is_rgb16) *is_rgb16 = 1;</div> -<div class="line"><a name="l05245"></a><span class="lineno"> 5245</span>  <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a>;</div> -<div class="line"><a name="l05246"></a><span class="lineno"> 5246</span>  <span class="keywordflow">case</span> 24: <span class="comment">// fall-through</span></div> -<div class="line"><a name="l05247"></a><span class="lineno"> 5247</span>  <span class="keywordflow">case</span> 32: <span class="keywordflow">return</span> bits_per_pixel/8;</div> -<div class="line"><a name="l05248"></a><span class="lineno"> 5248</span>  <span class="keywordflow">default</span>: <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05249"></a><span class="lineno"> 5249</span>  }</div> -<div class="line"><a name="l05250"></a><span class="lineno"> 5250</span> }</div> -<div class="line"><a name="l05251"></a><span class="lineno"> 5251</span> </div> -<div class="line"><a name="l05252"></a><span class="lineno"> 5252</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l05253"></a><span class="lineno"> 5253</span> {</div> -<div class="line"><a name="l05254"></a><span class="lineno"> 5254</span>  <span class="keywordtype">int</span> tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp;</div> -<div class="line"><a name="l05255"></a><span class="lineno"> 5255</span>  <span class="keywordtype">int</span> sz, tga_colormap_type;</div> -<div class="line"><a name="l05256"></a><span class="lineno"> 5256</span>  stbi__get8(s); <span class="comment">// discard Offset</span></div> -<div class="line"><a name="l05257"></a><span class="lineno"> 5257</span>  tga_colormap_type = stbi__get8(s); <span class="comment">// colormap type</span></div> -<div class="line"><a name="l05258"></a><span class="lineno"> 5258</span>  <span class="keywordflow">if</span>( tga_colormap_type > 1 ) {</div> -<div class="line"><a name="l05259"></a><span class="lineno"> 5259</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05260"></a><span class="lineno"> 5260</span>  <span class="keywordflow">return</span> 0; <span class="comment">// only RGB or indexed allowed</span></div> -<div class="line"><a name="l05261"></a><span class="lineno"> 5261</span>  }</div> -<div class="line"><a name="l05262"></a><span class="lineno"> 5262</span>  tga_image_type = stbi__get8(s); <span class="comment">// image type</span></div> -<div class="line"><a name="l05263"></a><span class="lineno"> 5263</span>  <span class="keywordflow">if</span> ( tga_colormap_type == 1 ) { <span class="comment">// colormapped (paletted) image</span></div> -<div class="line"><a name="l05264"></a><span class="lineno"> 5264</span>  <span class="keywordflow">if</span> (tga_image_type != 1 && tga_image_type != 9) {</div> -<div class="line"><a name="l05265"></a><span class="lineno"> 5265</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05266"></a><span class="lineno"> 5266</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05267"></a><span class="lineno"> 5267</span>  }</div> -<div class="line"><a name="l05268"></a><span class="lineno"> 5268</span>  stbi__skip(s,4); <span class="comment">// skip index of first colormap entry and number of entries</span></div> -<div class="line"><a name="l05269"></a><span class="lineno"> 5269</span>  sz = stbi__get8(s); <span class="comment">// check bits per palette color entry</span></div> -<div class="line"><a name="l05270"></a><span class="lineno"> 5270</span>  <span class="keywordflow">if</span> ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) {</div> -<div class="line"><a name="l05271"></a><span class="lineno"> 5271</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05272"></a><span class="lineno"> 5272</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05273"></a><span class="lineno"> 5273</span>  }</div> -<div class="line"><a name="l05274"></a><span class="lineno"> 5274</span>  stbi__skip(s,4); <span class="comment">// skip image x and y origin</span></div> -<div class="line"><a name="l05275"></a><span class="lineno"> 5275</span>  tga_colormap_bpp = sz;</div> -<div class="line"><a name="l05276"></a><span class="lineno"> 5276</span>  } <span class="keywordflow">else</span> { <span class="comment">// "normal" image w/o colormap - only RGB or grey allowed, +/- RLE</span></div> -<div class="line"><a name="l05277"></a><span class="lineno"> 5277</span>  <span class="keywordflow">if</span> ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) {</div> -<div class="line"><a name="l05278"></a><span class="lineno"> 5278</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05279"></a><span class="lineno"> 5279</span>  <span class="keywordflow">return</span> 0; <span class="comment">// only RGB or grey allowed, +/- RLE</span></div> -<div class="line"><a name="l05280"></a><span class="lineno"> 5280</span>  }</div> -<div class="line"><a name="l05281"></a><span class="lineno"> 5281</span>  stbi__skip(s,9); <span class="comment">// skip colormap specification and image x/y origin</span></div> -<div class="line"><a name="l05282"></a><span class="lineno"> 5282</span>  tga_colormap_bpp = 0;</div> +<div class="line"><a name="l05238"></a><span class="lineno"> 5238</span>  stbi__context *s = z->s;</div> +<div class="line"><a name="l05239"></a><span class="lineno"> 5239</span>  stbi__uint32 i, pixel_count = s->img_x * s->img_y;</div> +<div class="line"><a name="l05240"></a><span class="lineno"> 5240</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = z->out;</div> +<div class="line"><a name="l05241"></a><span class="lineno"> 5241</span> </div> +<div class="line"><a name="l05242"></a><span class="lineno"> 5242</span>  <span class="comment">// compute color-based transparency, assuming we've</span></div> +<div class="line"><a name="l05243"></a><span class="lineno"> 5243</span>  <span class="comment">// already got 255 as the alpha value in the output</span></div> +<div class="line"><a name="l05244"></a><span class="lineno"> 5244</span>  STBI_ASSERT(out_n == 2 || out_n == 4);</div> +<div class="line"><a name="l05245"></a><span class="lineno"> 5245</span> </div> +<div class="line"><a name="l05246"></a><span class="lineno"> 5246</span>  <span class="keywordflow">if</span> (out_n == 2) {</div> +<div class="line"><a name="l05247"></a><span class="lineno"> 5247</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05248"></a><span class="lineno"> 5248</span>  p[1] = (p[0] == tc[0] ? 0 : 255);</div> +<div class="line"><a name="l05249"></a><span class="lineno"> 5249</span>  p += 2;</div> +<div class="line"><a name="l05250"></a><span class="lineno"> 5250</span>  }</div> +<div class="line"><a name="l05251"></a><span class="lineno"> 5251</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05252"></a><span class="lineno"> 5252</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05253"></a><span class="lineno"> 5253</span>  <span class="keywordflow">if</span> (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])</div> +<div class="line"><a name="l05254"></a><span class="lineno"> 5254</span>  p[3] = 0;</div> +<div class="line"><a name="l05255"></a><span class="lineno"> 5255</span>  p += 4;</div> +<div class="line"><a name="l05256"></a><span class="lineno"> 5256</span>  }</div> +<div class="line"><a name="l05257"></a><span class="lineno"> 5257</span>  }</div> +<div class="line"><a name="l05258"></a><span class="lineno"> 5258</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05259"></a><span class="lineno"> 5259</span> }</div> +<div class="line"><a name="l05260"></a><span class="lineno"> 5260</span> </div> +<div class="line"><a name="l05261"></a><span class="lineno"> 5261</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3],</div> +<div class="line"><a name="l05262"></a><span class="lineno"> 5262</span>  <span class="keywordtype">int</span> out_n)</div> +<div class="line"><a name="l05263"></a><span class="lineno"> 5263</span> {</div> +<div class="line"><a name="l05264"></a><span class="lineno"> 5264</span>  stbi__context *s = z->s;</div> +<div class="line"><a name="l05265"></a><span class="lineno"> 5265</span>  stbi__uint32 i, pixel_count = s->img_x * s->img_y;</div> +<div class="line"><a name="l05266"></a><span class="lineno"> 5266</span>  stbi__uint16 *p = (stbi__uint16 *)z->out;</div> +<div class="line"><a name="l05267"></a><span class="lineno"> 5267</span> </div> +<div class="line"><a name="l05268"></a><span class="lineno"> 5268</span>  <span class="comment">// compute color-based transparency, assuming we've</span></div> +<div class="line"><a name="l05269"></a><span class="lineno"> 5269</span>  <span class="comment">// already got 65535 as the alpha value in the output</span></div> +<div class="line"><a name="l05270"></a><span class="lineno"> 5270</span>  STBI_ASSERT(out_n == 2 || out_n == 4);</div> +<div class="line"><a name="l05271"></a><span class="lineno"> 5271</span> </div> +<div class="line"><a name="l05272"></a><span class="lineno"> 5272</span>  <span class="keywordflow">if</span> (out_n == 2) {</div> +<div class="line"><a name="l05273"></a><span class="lineno"> 5273</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05274"></a><span class="lineno"> 5274</span>  p[1] = (p[0] == tc[0] ? 0 : 65535);</div> +<div class="line"><a name="l05275"></a><span class="lineno"> 5275</span>  p += 2;</div> +<div class="line"><a name="l05276"></a><span class="lineno"> 5276</span>  }</div> +<div class="line"><a name="l05277"></a><span class="lineno"> 5277</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05278"></a><span class="lineno"> 5278</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05279"></a><span class="lineno"> 5279</span>  <span class="keywordflow">if</span> (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])</div> +<div class="line"><a name="l05280"></a><span class="lineno"> 5280</span>  p[3] = 0;</div> +<div class="line"><a name="l05281"></a><span class="lineno"> 5281</span>  p += 4;</div> +<div class="line"><a name="l05282"></a><span class="lineno"> 5282</span>  }</div> <div class="line"><a name="l05283"></a><span class="lineno"> 5283</span>  }</div> -<div class="line"><a name="l05284"></a><span class="lineno"> 5284</span>  tga_w = stbi__get16le(s);</div> -<div class="line"><a name="l05285"></a><span class="lineno"> 5285</span>  <span class="keywordflow">if</span>( tga_w < 1 ) {</div> -<div class="line"><a name="l05286"></a><span class="lineno"> 5286</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05287"></a><span class="lineno"> 5287</span>  <span class="keywordflow">return</span> 0; <span class="comment">// test width</span></div> -<div class="line"><a name="l05288"></a><span class="lineno"> 5288</span>  }</div> -<div class="line"><a name="l05289"></a><span class="lineno"> 5289</span>  tga_h = stbi__get16le(s);</div> -<div class="line"><a name="l05290"></a><span class="lineno"> 5290</span>  <span class="keywordflow">if</span>( tga_h < 1 ) {</div> -<div class="line"><a name="l05291"></a><span class="lineno"> 5291</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05292"></a><span class="lineno"> 5292</span>  <span class="keywordflow">return</span> 0; <span class="comment">// test height</span></div> -<div class="line"><a name="l05293"></a><span class="lineno"> 5293</span>  }</div> -<div class="line"><a name="l05294"></a><span class="lineno"> 5294</span>  tga_bits_per_pixel = stbi__get8(s); <span class="comment">// bits per pixel</span></div> -<div class="line"><a name="l05295"></a><span class="lineno"> 5295</span>  stbi__get8(s); <span class="comment">// ignore alpha bits</span></div> -<div class="line"><a name="l05296"></a><span class="lineno"> 5296</span>  <span class="keywordflow">if</span> (tga_colormap_bpp != 0) {</div> -<div class="line"><a name="l05297"></a><span class="lineno"> 5297</span>  <span class="keywordflow">if</span>((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) {</div> -<div class="line"><a name="l05298"></a><span class="lineno"> 5298</span>  <span class="comment">// when using a colormap, tga_bits_per_pixel is the size of the indexes</span></div> -<div class="line"><a name="l05299"></a><span class="lineno"> 5299</span>  <span class="comment">// I don't think anything but 8 or 16bit indexes makes sense</span></div> -<div class="line"><a name="l05300"></a><span class="lineno"> 5300</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05301"></a><span class="lineno"> 5301</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05302"></a><span class="lineno"> 5302</span>  }</div> -<div class="line"><a name="l05303"></a><span class="lineno"> 5303</span>  tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL);</div> -<div class="line"><a name="l05304"></a><span class="lineno"> 5304</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05305"></a><span class="lineno"> 5305</span>  tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL);</div> -<div class="line"><a name="l05306"></a><span class="lineno"> 5306</span>  }</div> -<div class="line"><a name="l05307"></a><span class="lineno"> 5307</span>  <span class="keywordflow">if</span>(!tga_comp) {</div> -<div class="line"><a name="l05308"></a><span class="lineno"> 5308</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05309"></a><span class="lineno"> 5309</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05310"></a><span class="lineno"> 5310</span>  }</div> -<div class="line"><a name="l05311"></a><span class="lineno"> 5311</span>  <span class="keywordflow">if</span> (x) *x = tga_w;</div> -<div class="line"><a name="l05312"></a><span class="lineno"> 5312</span>  <span class="keywordflow">if</span> (y) *y = tga_h;</div> -<div class="line"><a name="l05313"></a><span class="lineno"> 5313</span>  <span class="keywordflow">if</span> (comp) *comp = tga_comp;</div> -<div class="line"><a name="l05314"></a><span class="lineno"> 5314</span>  <span class="keywordflow">return</span> 1; <span class="comment">// seems to have passed everything</span></div> -<div class="line"><a name="l05315"></a><span class="lineno"> 5315</span> }</div> -<div class="line"><a name="l05316"></a><span class="lineno"> 5316</span> </div> -<div class="line"><a name="l05317"></a><span class="lineno"> 5317</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_test(stbi__context *s)</div> -<div class="line"><a name="l05318"></a><span class="lineno"> 5318</span> {</div> -<div class="line"><a name="l05319"></a><span class="lineno"> 5319</span>  <span class="keywordtype">int</span> res = 0;</div> -<div class="line"><a name="l05320"></a><span class="lineno"> 5320</span>  <span class="keywordtype">int</span> sz, tga_color_type;</div> -<div class="line"><a name="l05321"></a><span class="lineno"> 5321</span>  stbi__get8(s); <span class="comment">// discard Offset</span></div> -<div class="line"><a name="l05322"></a><span class="lineno"> 5322</span>  tga_color_type = stbi__get8(s); <span class="comment">// color type</span></div> -<div class="line"><a name="l05323"></a><span class="lineno"> 5323</span>  <span class="keywordflow">if</span> ( tga_color_type > 1 ) <span class="keywordflow">goto</span> errorEnd; <span class="comment">// only RGB or indexed allowed</span></div> -<div class="line"><a name="l05324"></a><span class="lineno"> 5324</span>  sz = stbi__get8(s); <span class="comment">// image type</span></div> -<div class="line"><a name="l05325"></a><span class="lineno"> 5325</span>  <span class="keywordflow">if</span> ( tga_color_type == 1 ) { <span class="comment">// colormapped (paletted) image</span></div> -<div class="line"><a name="l05326"></a><span class="lineno"> 5326</span>  <span class="keywordflow">if</span> (sz != 1 && sz != 9) <span class="keywordflow">goto</span> errorEnd; <span class="comment">// colortype 1 demands image type 1 or 9</span></div> -<div class="line"><a name="l05327"></a><span class="lineno"> 5327</span>  stbi__skip(s,4); <span class="comment">// skip index of first colormap entry and number of entries</span></div> -<div class="line"><a name="l05328"></a><span class="lineno"> 5328</span>  sz = stbi__get8(s); <span class="comment">// check bits per palette color entry</span></div> -<div class="line"><a name="l05329"></a><span class="lineno"> 5329</span>  <span class="keywordflow">if</span> ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) <span class="keywordflow">goto</span> errorEnd;</div> -<div class="line"><a name="l05330"></a><span class="lineno"> 5330</span>  stbi__skip(s,4); <span class="comment">// skip image x and y origin</span></div> -<div class="line"><a name="l05331"></a><span class="lineno"> 5331</span>  } <span class="keywordflow">else</span> { <span class="comment">// "normal" image w/o colormap</span></div> -<div class="line"><a name="l05332"></a><span class="lineno"> 5332</span>  <span class="keywordflow">if</span> ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) <span class="keywordflow">goto</span> errorEnd; <span class="comment">// only RGB or grey allowed, +/- RLE</span></div> -<div class="line"><a name="l05333"></a><span class="lineno"> 5333</span>  stbi__skip(s,9); <span class="comment">// skip colormap specification and image x/y origin</span></div> -<div class="line"><a name="l05334"></a><span class="lineno"> 5334</span>  }</div> -<div class="line"><a name="l05335"></a><span class="lineno"> 5335</span>  <span class="keywordflow">if</span> ( stbi__get16le(s) < 1 ) <span class="keywordflow">goto</span> errorEnd; <span class="comment">// test width</span></div> -<div class="line"><a name="l05336"></a><span class="lineno"> 5336</span>  <span class="keywordflow">if</span> ( stbi__get16le(s) < 1 ) <span class="keywordflow">goto</span> errorEnd; <span class="comment">// test height</span></div> -<div class="line"><a name="l05337"></a><span class="lineno"> 5337</span>  sz = stbi__get8(s); <span class="comment">// bits per pixel</span></div> -<div class="line"><a name="l05338"></a><span class="lineno"> 5338</span>  <span class="keywordflow">if</span> ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) <span class="keywordflow">goto</span> errorEnd; <span class="comment">// for colormapped images, bpp is size of an index</span></div> -<div class="line"><a name="l05339"></a><span class="lineno"> 5339</span>  <span class="keywordflow">if</span> ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) <span class="keywordflow">goto</span> errorEnd;</div> -<div class="line"><a name="l05340"></a><span class="lineno"> 5340</span> </div> -<div class="line"><a name="l05341"></a><span class="lineno"> 5341</span>  res = 1; <span class="comment">// if we got this far, everything's good and we can return 1 instead of 0</span></div> -<div class="line"><a name="l05342"></a><span class="lineno"> 5342</span> </div> -<div class="line"><a name="l05343"></a><span class="lineno"> 5343</span> errorEnd:</div> -<div class="line"><a name="l05344"></a><span class="lineno"> 5344</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05345"></a><span class="lineno"> 5345</span>  <span class="keywordflow">return</span> res;</div> -<div class="line"><a name="l05346"></a><span class="lineno"> 5346</span> }</div> -<div class="line"><a name="l05347"></a><span class="lineno"> 5347</span> </div> -<div class="line"><a name="l05348"></a><span class="lineno"> 5348</span> <span class="comment">// read 16bit value and convert to 24bit RGB</span></div> -<div class="line"><a name="l05349"></a><span class="lineno"> 5349</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__tga_read_rgb16(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>* out)</div> -<div class="line"><a name="l05350"></a><span class="lineno"> 5350</span> {</div> -<div class="line"><a name="l05351"></a><span class="lineno"> 5351</span>  stbi__uint16 px = (stbi__uint16)stbi__get16le(s);</div> -<div class="line"><a name="l05352"></a><span class="lineno"> 5352</span>  stbi__uint16 fiveBitMask = 31;</div> -<div class="line"><a name="l05353"></a><span class="lineno"> 5353</span>  <span class="comment">// we have 3 channels with 5bits each</span></div> -<div class="line"><a name="l05354"></a><span class="lineno"> 5354</span>  <span class="keywordtype">int</span> r = (px >> 10) & fiveBitMask;</div> -<div class="line"><a name="l05355"></a><span class="lineno"> 5355</span>  <span class="keywordtype">int</span> g = (px >> 5) & fiveBitMask;</div> -<div class="line"><a name="l05356"></a><span class="lineno"> 5356</span>  <span class="keywordtype">int</span> b = px & fiveBitMask;</div> -<div class="line"><a name="l05357"></a><span class="lineno"> 5357</span>  <span class="comment">// Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later</span></div> -<div class="line"><a name="l05358"></a><span class="lineno"> 5358</span>  out[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((r * 255)/31);</div> -<div class="line"><a name="l05359"></a><span class="lineno"> 5359</span>  out[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((g * 255)/31);</div> -<div class="line"><a name="l05360"></a><span class="lineno"> 5360</span>  out[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((b * 255)/31);</div> -<div class="line"><a name="l05361"></a><span class="lineno"> 5361</span> </div> -<div class="line"><a name="l05362"></a><span class="lineno"> 5362</span>  <span class="comment">// some people claim that the most significant bit might be used for alpha</span></div> -<div class="line"><a name="l05363"></a><span class="lineno"> 5363</span>  <span class="comment">// (possibly if an alpha-bit is set in the "image descriptor byte")</span></div> -<div class="line"><a name="l05364"></a><span class="lineno"> 5364</span>  <span class="comment">// but that only made 16bit test images completely translucent..</span></div> -<div class="line"><a name="l05365"></a><span class="lineno"> 5365</span>  <span class="comment">// so let's treat all 15 and 16bit TGAs as RGB with no alpha.</span></div> -<div class="line"><a name="l05366"></a><span class="lineno"> 5366</span> }</div> -<div class="line"><a name="l05367"></a><span class="lineno"> 5367</span> </div> -<div class="line"><a name="l05368"></a><span class="lineno"> 5368</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__tga_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l05369"></a><span class="lineno"> 5369</span> {</div> -<div class="line"><a name="l05370"></a><span class="lineno"> 5370</span>  <span class="comment">// read in the TGA header stuff</span></div> -<div class="line"><a name="l05371"></a><span class="lineno"> 5371</span>  <span class="keywordtype">int</span> tga_offset = stbi__get8(s);</div> -<div class="line"><a name="l05372"></a><span class="lineno"> 5372</span>  <span class="keywordtype">int</span> tga_indexed = stbi__get8(s);</div> -<div class="line"><a name="l05373"></a><span class="lineno"> 5373</span>  <span class="keywordtype">int</span> tga_image_type = stbi__get8(s);</div> -<div class="line"><a name="l05374"></a><span class="lineno"> 5374</span>  <span class="keywordtype">int</span> tga_is_RLE = 0;</div> -<div class="line"><a name="l05375"></a><span class="lineno"> 5375</span>  <span class="keywordtype">int</span> tga_palette_start = stbi__get16le(s);</div> -<div class="line"><a name="l05376"></a><span class="lineno"> 5376</span>  <span class="keywordtype">int</span> tga_palette_len = stbi__get16le(s);</div> -<div class="line"><a name="l05377"></a><span class="lineno"> 5377</span>  <span class="keywordtype">int</span> tga_palette_bits = stbi__get8(s);</div> -<div class="line"><a name="l05378"></a><span class="lineno"> 5378</span>  <span class="keywordtype">int</span> tga_x_origin = stbi__get16le(s);</div> -<div class="line"><a name="l05379"></a><span class="lineno"> 5379</span>  <span class="keywordtype">int</span> tga_y_origin = stbi__get16le(s);</div> -<div class="line"><a name="l05380"></a><span class="lineno"> 5380</span>  <span class="keywordtype">int</span> tga_width = stbi__get16le(s);</div> -<div class="line"><a name="l05381"></a><span class="lineno"> 5381</span>  <span class="keywordtype">int</span> tga_height = stbi__get16le(s);</div> -<div class="line"><a name="l05382"></a><span class="lineno"> 5382</span>  <span class="keywordtype">int</span> tga_bits_per_pixel = stbi__get8(s);</div> -<div class="line"><a name="l05383"></a><span class="lineno"> 5383</span>  <span class="keywordtype">int</span> tga_comp, tga_rgb16=0;</div> -<div class="line"><a name="l05384"></a><span class="lineno"> 5384</span>  <span class="keywordtype">int</span> tga_inverted = stbi__get8(s);</div> -<div class="line"><a name="l05385"></a><span class="lineno"> 5385</span>  <span class="comment">// int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?)</span></div> -<div class="line"><a name="l05386"></a><span class="lineno"> 5386</span>  <span class="comment">// image data</span></div> -<div class="line"><a name="l05387"></a><span class="lineno"> 5387</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tga_data;</div> -<div class="line"><a name="l05388"></a><span class="lineno"> 5388</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tga_palette = NULL;</div> -<div class="line"><a name="l05389"></a><span class="lineno"> 5389</span>  <span class="keywordtype">int</span> i, j;</div> -<div class="line"><a name="l05390"></a><span class="lineno"> 5390</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> raw_data[4] = {0};</div> -<div class="line"><a name="l05391"></a><span class="lineno"> 5391</span>  <span class="keywordtype">int</span> RLE_count = 0;</div> -<div class="line"><a name="l05392"></a><span class="lineno"> 5392</span>  <span class="keywordtype">int</span> RLE_repeating = 0;</div> -<div class="line"><a name="l05393"></a><span class="lineno"> 5393</span>  <span class="keywordtype">int</span> read_next_pixel = 1;</div> -<div class="line"><a name="l05394"></a><span class="lineno"> 5394</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l05395"></a><span class="lineno"> 5395</span> </div> -<div class="line"><a name="l05396"></a><span class="lineno"> 5396</span>  <span class="comment">// do a tiny bit of precessing</span></div> -<div class="line"><a name="l05397"></a><span class="lineno"> 5397</span>  <span class="keywordflow">if</span> ( tga_image_type >= 8 )</div> -<div class="line"><a name="l05398"></a><span class="lineno"> 5398</span>  {</div> -<div class="line"><a name="l05399"></a><span class="lineno"> 5399</span>  tga_image_type -= 8;</div> -<div class="line"><a name="l05400"></a><span class="lineno"> 5400</span>  tga_is_RLE = 1;</div> -<div class="line"><a name="l05401"></a><span class="lineno"> 5401</span>  }</div> -<div class="line"><a name="l05402"></a><span class="lineno"> 5402</span>  tga_inverted = 1 - ((tga_inverted >> 5) & 1);</div> -<div class="line"><a name="l05403"></a><span class="lineno"> 5403</span> </div> -<div class="line"><a name="l05404"></a><span class="lineno"> 5404</span>  <span class="comment">// If I'm paletted, then I'll use the number of bits from the palette</span></div> -<div class="line"><a name="l05405"></a><span class="lineno"> 5405</span>  <span class="keywordflow">if</span> ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16);</div> -<div class="line"><a name="l05406"></a><span class="lineno"> 5406</span>  <span class="keywordflow">else</span> tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16);</div> -<div class="line"><a name="l05407"></a><span class="lineno"> 5407</span> </div> -<div class="line"><a name="l05408"></a><span class="lineno"> 5408</span>  <span class="keywordflow">if</span>(!tga_comp) <span class="comment">// shouldn't really happen, stbi__tga_test() should have ensured basic consistency</span></div> -<div class="line"><a name="l05409"></a><span class="lineno"> 5409</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>, <span class="stringliteral">"Can't find out TGA pixelformat"</span>);</div> -<div class="line"><a name="l05410"></a><span class="lineno"> 5410</span> </div> -<div class="line"><a name="l05411"></a><span class="lineno"> 5411</span>  <span class="comment">// tga info</span></div> -<div class="line"><a name="l05412"></a><span class="lineno"> 5412</span>  *x = tga_width;</div> -<div class="line"><a name="l05413"></a><span class="lineno"> 5413</span>  *y = tga_height;</div> -<div class="line"><a name="l05414"></a><span class="lineno"> 5414</span>  <span class="keywordflow">if</span> (comp) *comp = tga_comp;</div> -<div class="line"><a name="l05415"></a><span class="lineno"> 5415</span> </div> -<div class="line"><a name="l05416"></a><span class="lineno"> 5416</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0))</div> -<div class="line"><a name="l05417"></a><span class="lineno"> 5417</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt TGA"</span>);</div> -<div class="line"><a name="l05418"></a><span class="lineno"> 5418</span> </div> -<div class="line"><a name="l05419"></a><span class="lineno"> 5419</span>  tga_data = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0);</div> -<div class="line"><a name="l05420"></a><span class="lineno"> 5420</span>  <span class="keywordflow">if</span> (!tga_data) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l05421"></a><span class="lineno"> 5421</span> </div> -<div class="line"><a name="l05422"></a><span class="lineno"> 5422</span>  <span class="comment">// skip to the data's starting position (offset usually = 0)</span></div> -<div class="line"><a name="l05423"></a><span class="lineno"> 5423</span>  stbi__skip(s, tga_offset );</div> -<div class="line"><a name="l05424"></a><span class="lineno"> 5424</span> </div> -<div class="line"><a name="l05425"></a><span class="lineno"> 5425</span>  <span class="keywordflow">if</span> ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) {</div> -<div class="line"><a name="l05426"></a><span class="lineno"> 5426</span>  <span class="keywordflow">for</span> (i=0; i < tga_height; ++i) {</div> -<div class="line"><a name="l05427"></a><span class="lineno"> 5427</span>  <span class="keywordtype">int</span> row = tga_inverted ? tga_height -i - 1 : i;</div> -<div class="line"><a name="l05428"></a><span class="lineno"> 5428</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *tga_row = tga_data + row*tga_width*tga_comp;</div> -<div class="line"><a name="l05429"></a><span class="lineno"> 5429</span>  stbi__getn(s, tga_row, tga_width * tga_comp);</div> -<div class="line"><a name="l05430"></a><span class="lineno"> 5430</span>  }</div> -<div class="line"><a name="l05431"></a><span class="lineno"> 5431</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05432"></a><span class="lineno"> 5432</span>  <span class="comment">// do I need to load a palette?</span></div> -<div class="line"><a name="l05433"></a><span class="lineno"> 5433</span>  <span class="keywordflow">if</span> ( tga_indexed)</div> -<div class="line"><a name="l05434"></a><span class="lineno"> 5434</span>  {</div> -<div class="line"><a name="l05435"></a><span class="lineno"> 5435</span>  <span class="comment">// any data to skip? (offset usually = 0)</span></div> -<div class="line"><a name="l05436"></a><span class="lineno"> 5436</span>  stbi__skip(s, tga_palette_start );</div> -<div class="line"><a name="l05437"></a><span class="lineno"> 5437</span>  <span class="comment">// load the palette</span></div> -<div class="line"><a name="l05438"></a><span class="lineno"> 5438</span>  tga_palette = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0);</div> -<div class="line"><a name="l05439"></a><span class="lineno"> 5439</span>  <span class="keywordflow">if</span> (!tga_palette) {</div> -<div class="line"><a name="l05440"></a><span class="lineno"> 5440</span>  STBI_FREE(tga_data);</div> -<div class="line"><a name="l05441"></a><span class="lineno"> 5441</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l05442"></a><span class="lineno"> 5442</span>  }</div> -<div class="line"><a name="l05443"></a><span class="lineno"> 5443</span>  <span class="keywordflow">if</span> (tga_rgb16) {</div> -<div class="line"><a name="l05444"></a><span class="lineno"> 5444</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pal_entry = tga_palette;</div> -<div class="line"><a name="l05445"></a><span class="lineno"> 5445</span>  STBI_ASSERT(tga_comp == <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a>);</div> -<div class="line"><a name="l05446"></a><span class="lineno"> 5446</span>  <span class="keywordflow">for</span> (i=0; i < tga_palette_len; ++i) {</div> -<div class="line"><a name="l05447"></a><span class="lineno"> 5447</span>  stbi__tga_read_rgb16(s, pal_entry);</div> -<div class="line"><a name="l05448"></a><span class="lineno"> 5448</span>  pal_entry += tga_comp;</div> -<div class="line"><a name="l05449"></a><span class="lineno"> 5449</span>  }</div> -<div class="line"><a name="l05450"></a><span class="lineno"> 5450</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) {</div> -<div class="line"><a name="l05451"></a><span class="lineno"> 5451</span>  STBI_FREE(tga_data);</div> -<div class="line"><a name="l05452"></a><span class="lineno"> 5452</span>  STBI_FREE(tga_palette);</div> -<div class="line"><a name="l05453"></a><span class="lineno"> 5453</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad palette"</span>, <span class="stringliteral">"Corrupt TGA"</span>);</div> -<div class="line"><a name="l05454"></a><span class="lineno"> 5454</span>  }</div> -<div class="line"><a name="l05455"></a><span class="lineno"> 5455</span>  }</div> -<div class="line"><a name="l05456"></a><span class="lineno"> 5456</span>  <span class="comment">// load the data</span></div> -<div class="line"><a name="l05457"></a><span class="lineno"> 5457</span>  <span class="keywordflow">for</span> (i=0; i < tga_width * tga_height; ++i)</div> -<div class="line"><a name="l05458"></a><span class="lineno"> 5458</span>  {</div> -<div class="line"><a name="l05459"></a><span class="lineno"> 5459</span>  <span class="comment">// if I'm in RLE mode, do I need to get a RLE stbi__pngchunk?</span></div> -<div class="line"><a name="l05460"></a><span class="lineno"> 5460</span>  <span class="keywordflow">if</span> ( tga_is_RLE )</div> -<div class="line"><a name="l05461"></a><span class="lineno"> 5461</span>  {</div> -<div class="line"><a name="l05462"></a><span class="lineno"> 5462</span>  <span class="keywordflow">if</span> ( RLE_count == 0 )</div> -<div class="line"><a name="l05463"></a><span class="lineno"> 5463</span>  {</div> -<div class="line"><a name="l05464"></a><span class="lineno"> 5464</span>  <span class="comment">// yep, get the next byte as a RLE command</span></div> -<div class="line"><a name="l05465"></a><span class="lineno"> 5465</span>  <span class="keywordtype">int</span> RLE_cmd = stbi__get8(s);</div> -<div class="line"><a name="l05466"></a><span class="lineno"> 5466</span>  RLE_count = 1 + (RLE_cmd & 127);</div> -<div class="line"><a name="l05467"></a><span class="lineno"> 5467</span>  RLE_repeating = RLE_cmd >> 7;</div> -<div class="line"><a name="l05468"></a><span class="lineno"> 5468</span>  read_next_pixel = 1;</div> -<div class="line"><a name="l05469"></a><span class="lineno"> 5469</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( !RLE_repeating )</div> -<div class="line"><a name="l05470"></a><span class="lineno"> 5470</span>  {</div> -<div class="line"><a name="l05471"></a><span class="lineno"> 5471</span>  read_next_pixel = 1;</div> -<div class="line"><a name="l05472"></a><span class="lineno"> 5472</span>  }</div> -<div class="line"><a name="l05473"></a><span class="lineno"> 5473</span>  } <span class="keywordflow">else</span></div> -<div class="line"><a name="l05474"></a><span class="lineno"> 5474</span>  {</div> -<div class="line"><a name="l05475"></a><span class="lineno"> 5475</span>  read_next_pixel = 1;</div> -<div class="line"><a name="l05476"></a><span class="lineno"> 5476</span>  }</div> -<div class="line"><a name="l05477"></a><span class="lineno"> 5477</span>  <span class="comment">// OK, if I need to read a pixel, do it now</span></div> -<div class="line"><a name="l05478"></a><span class="lineno"> 5478</span>  <span class="keywordflow">if</span> ( read_next_pixel )</div> -<div class="line"><a name="l05479"></a><span class="lineno"> 5479</span>  {</div> -<div class="line"><a name="l05480"></a><span class="lineno"> 5480</span>  <span class="comment">// load however much data we did have</span></div> -<div class="line"><a name="l05481"></a><span class="lineno"> 5481</span>  <span class="keywordflow">if</span> ( tga_indexed )</div> -<div class="line"><a name="l05482"></a><span class="lineno"> 5482</span>  {</div> -<div class="line"><a name="l05483"></a><span class="lineno"> 5483</span>  <span class="comment">// read in index, then perform the lookup</span></div> -<div class="line"><a name="l05484"></a><span class="lineno"> 5484</span>  <span class="keywordtype">int</span> pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s);</div> -<div class="line"><a name="l05485"></a><span class="lineno"> 5485</span>  <span class="keywordflow">if</span> ( pal_idx >= tga_palette_len ) {</div> -<div class="line"><a name="l05486"></a><span class="lineno"> 5486</span>  <span class="comment">// invalid index</span></div> -<div class="line"><a name="l05487"></a><span class="lineno"> 5487</span>  pal_idx = 0;</div> -<div class="line"><a name="l05488"></a><span class="lineno"> 5488</span>  }</div> -<div class="line"><a name="l05489"></a><span class="lineno"> 5489</span>  pal_idx *= tga_comp;</div> -<div class="line"><a name="l05490"></a><span class="lineno"> 5490</span>  <span class="keywordflow">for</span> (j = 0; j < tga_comp; ++j) {</div> -<div class="line"><a name="l05491"></a><span class="lineno"> 5491</span>  raw_data[j] = tga_palette[pal_idx+j];</div> -<div class="line"><a name="l05492"></a><span class="lineno"> 5492</span>  }</div> -<div class="line"><a name="l05493"></a><span class="lineno"> 5493</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(tga_rgb16) {</div> -<div class="line"><a name="l05494"></a><span class="lineno"> 5494</span>  STBI_ASSERT(tga_comp == <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a>);</div> -<div class="line"><a name="l05495"></a><span class="lineno"> 5495</span>  stbi__tga_read_rgb16(s, raw_data);</div> -<div class="line"><a name="l05496"></a><span class="lineno"> 5496</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05497"></a><span class="lineno"> 5497</span>  <span class="comment">// read in the data raw</span></div> -<div class="line"><a name="l05498"></a><span class="lineno"> 5498</span>  <span class="keywordflow">for</span> (j = 0; j < tga_comp; ++j) {</div> -<div class="line"><a name="l05499"></a><span class="lineno"> 5499</span>  raw_data[j] = stbi__get8(s);</div> -<div class="line"><a name="l05500"></a><span class="lineno"> 5500</span>  }</div> -<div class="line"><a name="l05501"></a><span class="lineno"> 5501</span>  }</div> -<div class="line"><a name="l05502"></a><span class="lineno"> 5502</span>  <span class="comment">// clear the reading flag for the next pixel</span></div> -<div class="line"><a name="l05503"></a><span class="lineno"> 5503</span>  read_next_pixel = 0;</div> -<div class="line"><a name="l05504"></a><span class="lineno"> 5504</span>  } <span class="comment">// end of reading a pixel</span></div> -<div class="line"><a name="l05505"></a><span class="lineno"> 5505</span> </div> -<div class="line"><a name="l05506"></a><span class="lineno"> 5506</span>  <span class="comment">// copy data</span></div> -<div class="line"><a name="l05507"></a><span class="lineno"> 5507</span>  <span class="keywordflow">for</span> (j = 0; j < tga_comp; ++j)</div> -<div class="line"><a name="l05508"></a><span class="lineno"> 5508</span>  tga_data[i*tga_comp+j] = raw_data[j];</div> -<div class="line"><a name="l05509"></a><span class="lineno"> 5509</span> </div> -<div class="line"><a name="l05510"></a><span class="lineno"> 5510</span>  <span class="comment">// in case we're in RLE mode, keep counting down</span></div> -<div class="line"><a name="l05511"></a><span class="lineno"> 5511</span>  --RLE_count;</div> -<div class="line"><a name="l05512"></a><span class="lineno"> 5512</span>  }</div> -<div class="line"><a name="l05513"></a><span class="lineno"> 5513</span>  <span class="comment">// do I need to invert the image?</span></div> -<div class="line"><a name="l05514"></a><span class="lineno"> 5514</span>  <span class="keywordflow">if</span> ( tga_inverted )</div> -<div class="line"><a name="l05515"></a><span class="lineno"> 5515</span>  {</div> -<div class="line"><a name="l05516"></a><span class="lineno"> 5516</span>  <span class="keywordflow">for</span> (j = 0; j*2 < tga_height; ++j)</div> -<div class="line"><a name="l05517"></a><span class="lineno"> 5517</span>  {</div> -<div class="line"><a name="l05518"></a><span class="lineno"> 5518</span>  <span class="keywordtype">int</span> index1 = j * tga_width * tga_comp;</div> -<div class="line"><a name="l05519"></a><span class="lineno"> 5519</span>  <span class="keywordtype">int</span> index2 = (tga_height - 1 - j) * tga_width * tga_comp;</div> -<div class="line"><a name="l05520"></a><span class="lineno"> 5520</span>  <span class="keywordflow">for</span> (i = tga_width * tga_comp; i > 0; --i)</div> -<div class="line"><a name="l05521"></a><span class="lineno"> 5521</span>  {</div> -<div class="line"><a name="l05522"></a><span class="lineno"> 5522</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp = tga_data[index1];</div> -<div class="line"><a name="l05523"></a><span class="lineno"> 5523</span>  tga_data[index1] = tga_data[index2];</div> -<div class="line"><a name="l05524"></a><span class="lineno"> 5524</span>  tga_data[index2] = temp;</div> -<div class="line"><a name="l05525"></a><span class="lineno"> 5525</span>  ++index1;</div> -<div class="line"><a name="l05526"></a><span class="lineno"> 5526</span>  ++index2;</div> -<div class="line"><a name="l05527"></a><span class="lineno"> 5527</span>  }</div> -<div class="line"><a name="l05528"></a><span class="lineno"> 5528</span>  }</div> -<div class="line"><a name="l05529"></a><span class="lineno"> 5529</span>  }</div> -<div class="line"><a name="l05530"></a><span class="lineno"> 5530</span>  <span class="comment">// clear my palette, if I had one</span></div> -<div class="line"><a name="l05531"></a><span class="lineno"> 5531</span>  <span class="keywordflow">if</span> ( tga_palette != NULL )</div> -<div class="line"><a name="l05532"></a><span class="lineno"> 5532</span>  {</div> -<div class="line"><a name="l05533"></a><span class="lineno"> 5533</span>  STBI_FREE( tga_palette );</div> -<div class="line"><a name="l05534"></a><span class="lineno"> 5534</span>  }</div> -<div class="line"><a name="l05535"></a><span class="lineno"> 5535</span>  }</div> -<div class="line"><a name="l05536"></a><span class="lineno"> 5536</span> </div> -<div class="line"><a name="l05537"></a><span class="lineno"> 5537</span>  <span class="comment">// swap RGB - if the source data was RGB16, it already is in the right order</span></div> -<div class="line"><a name="l05538"></a><span class="lineno"> 5538</span>  <span class="keywordflow">if</span> (tga_comp >= 3 && !tga_rgb16)</div> -<div class="line"><a name="l05539"></a><span class="lineno"> 5539</span>  {</div> -<div class="line"><a name="l05540"></a><span class="lineno"> 5540</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* tga_pixel = tga_data;</div> -<div class="line"><a name="l05541"></a><span class="lineno"> 5541</span>  <span class="keywordflow">for</span> (i=0; i < tga_width * tga_height; ++i)</div> -<div class="line"><a name="l05542"></a><span class="lineno"> 5542</span>  {</div> -<div class="line"><a name="l05543"></a><span class="lineno"> 5543</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp = tga_pixel[0];</div> -<div class="line"><a name="l05544"></a><span class="lineno"> 5544</span>  tga_pixel[0] = tga_pixel[2];</div> -<div class="line"><a name="l05545"></a><span class="lineno"> 5545</span>  tga_pixel[2] = temp;</div> -<div class="line"><a name="l05546"></a><span class="lineno"> 5546</span>  tga_pixel += tga_comp;</div> -<div class="line"><a name="l05547"></a><span class="lineno"> 5547</span>  }</div> -<div class="line"><a name="l05548"></a><span class="lineno"> 5548</span>  }</div> -<div class="line"><a name="l05549"></a><span class="lineno"> 5549</span> </div> -<div class="line"><a name="l05550"></a><span class="lineno"> 5550</span>  <span class="comment">// convert to target component count</span></div> -<div class="line"><a name="l05551"></a><span class="lineno"> 5551</span>  <span class="keywordflow">if</span> (req_comp && req_comp != tga_comp)</div> -<div class="line"><a name="l05552"></a><span class="lineno"> 5552</span>  tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height);</div> +<div class="line"><a name="l05284"></a><span class="lineno"> 5284</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05285"></a><span class="lineno"> 5285</span> }</div> +<div class="line"><a name="l05286"></a><span class="lineno"> 5286</span> </div> +<div class="line"><a name="l05287"></a><span class="lineno"> 5287</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__expand_png_palette(stbi__png *a, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *palette, <span class="keywordtype">int</span> len,</div> +<div class="line"><a name="l05288"></a><span class="lineno"> 5288</span>  <span class="keywordtype">int</span> pal_img_n)</div> +<div class="line"><a name="l05289"></a><span class="lineno"> 5289</span> {</div> +<div class="line"><a name="l05290"></a><span class="lineno"> 5290</span>  stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y;</div> +<div class="line"><a name="l05291"></a><span class="lineno"> 5291</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p, *temp_out, *orig = a->out;</div> +<div class="line"><a name="l05292"></a><span class="lineno"> 5292</span> </div> +<div class="line"><a name="l05293"></a><span class="lineno"> 5293</span>  p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad2(pixel_count, pal_img_n, 0);</div> +<div class="line"><a name="l05294"></a><span class="lineno"> 5294</span>  <span class="keywordflow">if</span> (p == NULL)</div> +<div class="line"><a name="l05295"></a><span class="lineno"> 5295</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l05296"></a><span class="lineno"> 5296</span> </div> +<div class="line"><a name="l05297"></a><span class="lineno"> 5297</span>  <span class="comment">// between here and free(out) below, exitting would leak</span></div> +<div class="line"><a name="l05298"></a><span class="lineno"> 5298</span>  temp_out = p;</div> +<div class="line"><a name="l05299"></a><span class="lineno"> 5299</span> </div> +<div class="line"><a name="l05300"></a><span class="lineno"> 5300</span>  <span class="keywordflow">if</span> (pal_img_n == 3) {</div> +<div class="line"><a name="l05301"></a><span class="lineno"> 5301</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05302"></a><span class="lineno"> 5302</span>  <span class="keywordtype">int</span> n = orig[i] * 4;</div> +<div class="line"><a name="l05303"></a><span class="lineno"> 5303</span>  p[0] = palette[n];</div> +<div class="line"><a name="l05304"></a><span class="lineno"> 5304</span>  p[1] = palette[n + 1];</div> +<div class="line"><a name="l05305"></a><span class="lineno"> 5305</span>  p[2] = palette[n + 2];</div> +<div class="line"><a name="l05306"></a><span class="lineno"> 5306</span>  p += 3;</div> +<div class="line"><a name="l05307"></a><span class="lineno"> 5307</span>  }</div> +<div class="line"><a name="l05308"></a><span class="lineno"> 5308</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05309"></a><span class="lineno"> 5309</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05310"></a><span class="lineno"> 5310</span>  <span class="keywordtype">int</span> n = orig[i] * 4;</div> +<div class="line"><a name="l05311"></a><span class="lineno"> 5311</span>  p[0] = palette[n];</div> +<div class="line"><a name="l05312"></a><span class="lineno"> 5312</span>  p[1] = palette[n + 1];</div> +<div class="line"><a name="l05313"></a><span class="lineno"> 5313</span>  p[2] = palette[n + 2];</div> +<div class="line"><a name="l05314"></a><span class="lineno"> 5314</span>  p[3] = palette[n + 3];</div> +<div class="line"><a name="l05315"></a><span class="lineno"> 5315</span>  p += 4;</div> +<div class="line"><a name="l05316"></a><span class="lineno"> 5316</span>  }</div> +<div class="line"><a name="l05317"></a><span class="lineno"> 5317</span>  }</div> +<div class="line"><a name="l05318"></a><span class="lineno"> 5318</span>  STBI_FREE(a->out);</div> +<div class="line"><a name="l05319"></a><span class="lineno"> 5319</span>  a->out = temp_out;</div> +<div class="line"><a name="l05320"></a><span class="lineno"> 5320</span> </div> +<div class="line"><a name="l05321"></a><span class="lineno"> 5321</span>  STBI_NOTUSED(len);</div> +<div class="line"><a name="l05322"></a><span class="lineno"> 5322</span> </div> +<div class="line"><a name="l05323"></a><span class="lineno"> 5323</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05324"></a><span class="lineno"> 5324</span> }</div> +<div class="line"><a name="l05325"></a><span class="lineno"> 5325</span> </div> +<div class="line"><a name="l05326"></a><span class="lineno"> 5326</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__unpremultiply_on_load = 0;</div> +<div class="line"><a name="l05327"></a><span class="lineno"> 5327</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__de_iphone_flag = 0;</div> +<div class="line"><a name="l05328"></a><span class="lineno"> 5328</span> </div> +<div class="line"><a name="l05329"></a><span class="lineno"> 5329</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span></div> +<div class="line"><a name="l05330"></a><span class="lineno"> 5330</span> <a class="code" href="stb__image_8h.html#a3f02e0053e1c8d08a3ed436e6a82c7c9">stbi_set_unpremultiply_on_load</a>(<span class="keywordtype">int</span> flag_true_if_should_unpremultiply)</div> +<div class="line"><a name="l05331"></a><span class="lineno"> 5331</span> {</div> +<div class="line"><a name="l05332"></a><span class="lineno"> 5332</span>  stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply;</div> +<div class="line"><a name="l05333"></a><span class="lineno"> 5333</span> }</div> +<div class="line"><a name="l05334"></a><span class="lineno"> 5334</span> </div> +<div class="line"><a name="l05335"></a><span class="lineno"> 5335</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">void</span> <a class="code" href="stb__image_8h.html#a23525ef2b882f3de426b47ecf8d9151b">stbi_convert_iphone_png_to_rgb</a>(<span class="keywordtype">int</span> flag_true_if_should_convert)</div> +<div class="line"><a name="l05336"></a><span class="lineno"> 5336</span> {</div> +<div class="line"><a name="l05337"></a><span class="lineno"> 5337</span>  stbi__de_iphone_flag = flag_true_if_should_convert;</div> +<div class="line"><a name="l05338"></a><span class="lineno"> 5338</span> }</div> +<div class="line"><a name="l05339"></a><span class="lineno"> 5339</span> </div> +<div class="line"><a name="l05340"></a><span class="lineno"> 5340</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__de_iphone(stbi__png *z)</div> +<div class="line"><a name="l05341"></a><span class="lineno"> 5341</span> {</div> +<div class="line"><a name="l05342"></a><span class="lineno"> 5342</span>  stbi__context *s = z->s;</div> +<div class="line"><a name="l05343"></a><span class="lineno"> 5343</span>  stbi__uint32 i, pixel_count = s->img_x * s->img_y;</div> +<div class="line"><a name="l05344"></a><span class="lineno"> 5344</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = z->out;</div> +<div class="line"><a name="l05345"></a><span class="lineno"> 5345</span> </div> +<div class="line"><a name="l05346"></a><span class="lineno"> 5346</span>  <span class="keywordflow">if</span> (s->img_out_n == 3) { <span class="comment">// convert bgr to rgb</span></div> +<div class="line"><a name="l05347"></a><span class="lineno"> 5347</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05348"></a><span class="lineno"> 5348</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t = p[0];</div> +<div class="line"><a name="l05349"></a><span class="lineno"> 5349</span>  p[0] = p[2];</div> +<div class="line"><a name="l05350"></a><span class="lineno"> 5350</span>  p[2] = t;</div> +<div class="line"><a name="l05351"></a><span class="lineno"> 5351</span>  p += 3;</div> +<div class="line"><a name="l05352"></a><span class="lineno"> 5352</span>  }</div> +<div class="line"><a name="l05353"></a><span class="lineno"> 5353</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05354"></a><span class="lineno"> 5354</span>  STBI_ASSERT(s->img_out_n == 4);</div> +<div class="line"><a name="l05355"></a><span class="lineno"> 5355</span>  <span class="keywordflow">if</span> (stbi__unpremultiply_on_load) {</div> +<div class="line"><a name="l05356"></a><span class="lineno"> 5356</span>  <span class="comment">// convert bgr to rgb and unpremultiply</span></div> +<div class="line"><a name="l05357"></a><span class="lineno"> 5357</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05358"></a><span class="lineno"> 5358</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> a = p[3];</div> +<div class="line"><a name="l05359"></a><span class="lineno"> 5359</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t = p[0];</div> +<div class="line"><a name="l05360"></a><span class="lineno"> 5360</span>  <span class="keywordflow">if</span> (a) {</div> +<div class="line"><a name="l05361"></a><span class="lineno"> 5361</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> half = a / 2;</div> +<div class="line"><a name="l05362"></a><span class="lineno"> 5362</span>  p[0] = (p[2] * 255 + half) / a;</div> +<div class="line"><a name="l05363"></a><span class="lineno"> 5363</span>  p[1] = (p[1] * 255 + half) / a;</div> +<div class="line"><a name="l05364"></a><span class="lineno"> 5364</span>  p[2] = (t * 255 + half) / a;</div> +<div class="line"><a name="l05365"></a><span class="lineno"> 5365</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05366"></a><span class="lineno"> 5366</span>  p[0] = p[2];</div> +<div class="line"><a name="l05367"></a><span class="lineno"> 5367</span>  p[2] = t;</div> +<div class="line"><a name="l05368"></a><span class="lineno"> 5368</span>  }</div> +<div class="line"><a name="l05369"></a><span class="lineno"> 5369</span>  p += 4;</div> +<div class="line"><a name="l05370"></a><span class="lineno"> 5370</span>  }</div> +<div class="line"><a name="l05371"></a><span class="lineno"> 5371</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05372"></a><span class="lineno"> 5372</span>  <span class="comment">// convert bgr to rgb</span></div> +<div class="line"><a name="l05373"></a><span class="lineno"> 5373</span>  <span class="keywordflow">for</span> (i = 0; i < pixel_count; ++i) {</div> +<div class="line"><a name="l05374"></a><span class="lineno"> 5374</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t = p[0];</div> +<div class="line"><a name="l05375"></a><span class="lineno"> 5375</span>  p[0] = p[2];</div> +<div class="line"><a name="l05376"></a><span class="lineno"> 5376</span>  p[2] = t;</div> +<div class="line"><a name="l05377"></a><span class="lineno"> 5377</span>  p += 4;</div> +<div class="line"><a name="l05378"></a><span class="lineno"> 5378</span>  }</div> +<div class="line"><a name="l05379"></a><span class="lineno"> 5379</span>  }</div> +<div class="line"><a name="l05380"></a><span class="lineno"> 5380</span>  }</div> +<div class="line"><a name="l05381"></a><span class="lineno"> 5381</span> }</div> +<div class="line"><a name="l05382"></a><span class="lineno"> 5382</span> </div> +<div class="line"><a name="l05383"></a><span class="lineno"> 5383</span> <span class="preprocessor">#define STBI__PNG_TYPE(a, b, c, d) \</span></div> +<div class="line"><a name="l05384"></a><span class="lineno"> 5384</span> <span class="preprocessor"> (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))</span></div> +<div class="line"><a name="l05385"></a><span class="lineno"> 5385</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l05386"></a><span class="lineno"> 5386</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__parse_png_file(stbi__png *z, <span class="keywordtype">int</span> scan, <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l05387"></a><span class="lineno"> 5387</span> {</div> +<div class="line"><a name="l05388"></a><span class="lineno"> 5388</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> palette[1024], pal_img_n = 0;</div> +<div class="line"><a name="l05389"></a><span class="lineno"> 5389</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> has_trans = 0, tc[3];</div> +<div class="line"><a name="l05390"></a><span class="lineno"> 5390</span>  stbi__uint16 tc16[3];</div> +<div class="line"><a name="l05391"></a><span class="lineno"> 5391</span>  stbi__uint32 ioff = 0, idata_limit = 0, i, pal_len = 0;</div> +<div class="line"><a name="l05392"></a><span class="lineno"> 5392</span>  <span class="keywordtype">int</span> first = 1, k, interlace = 0, color = 0, is_iphone = 0;</div> +<div class="line"><a name="l05393"></a><span class="lineno"> 5393</span>  stbi__context *s = z->s;</div> +<div class="line"><a name="l05394"></a><span class="lineno"> 5394</span> </div> +<div class="line"><a name="l05395"></a><span class="lineno"> 5395</span>  z->expanded = NULL;</div> +<div class="line"><a name="l05396"></a><span class="lineno"> 5396</span>  z->idata = NULL;</div> +<div class="line"><a name="l05397"></a><span class="lineno"> 5397</span>  z->out = NULL;</div> +<div class="line"><a name="l05398"></a><span class="lineno"> 5398</span> </div> +<div class="line"><a name="l05399"></a><span class="lineno"> 5399</span>  <span class="keywordflow">if</span> (!stbi__check_png_header(s))</div> +<div class="line"><a name="l05400"></a><span class="lineno"> 5400</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05401"></a><span class="lineno"> 5401</span> </div> +<div class="line"><a name="l05402"></a><span class="lineno"> 5402</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_type)</div> +<div class="line"><a name="l05403"></a><span class="lineno"> 5403</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05404"></a><span class="lineno"> 5404</span> </div> +<div class="line"><a name="l05405"></a><span class="lineno"> 5405</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l05406"></a><span class="lineno"> 5406</span>  stbi__pngchunk c = stbi__get_chunk_header(s);</div> +<div class="line"><a name="l05407"></a><span class="lineno"> 5407</span>  <span class="keywordflow">switch</span> (c.type) {</div> +<div class="line"><a name="l05408"></a><span class="lineno"> 5408</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'C'</span>, <span class="charliteral">'g'</span>, <span class="charliteral">'B'</span>, <span class="charliteral">'I'</span>):</div> +<div class="line"><a name="l05409"></a><span class="lineno"> 5409</span>  is_iphone = 1;</div> +<div class="line"><a name="l05410"></a><span class="lineno"> 5410</span>  stbi__skip(s, c.length);</div> +<div class="line"><a name="l05411"></a><span class="lineno"> 5411</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05412"></a><span class="lineno"> 5412</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'I'</span>, <span class="charliteral">'H'</span>, <span class="charliteral">'D'</span>, <span class="charliteral">'R'</span>): {</div> +<div class="line"><a name="l05413"></a><span class="lineno"> 5413</span>  <span class="keywordtype">int</span> comp, filter;</div> +<div class="line"><a name="l05414"></a><span class="lineno"> 5414</span>  <span class="keywordflow">if</span> (!first)</div> +<div class="line"><a name="l05415"></a><span class="lineno"> 5415</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"multiple IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05416"></a><span class="lineno"> 5416</span>  first = 0;</div> +<div class="line"><a name="l05417"></a><span class="lineno"> 5417</span>  <span class="keywordflow">if</span> (c.length != 13)</div> +<div class="line"><a name="l05418"></a><span class="lineno"> 5418</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad IHDR len"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05419"></a><span class="lineno"> 5419</span>  s->img_x = stbi__get32be(s);</div> +<div class="line"><a name="l05420"></a><span class="lineno"> 5420</span>  <span class="keywordflow">if</span> (s->img_x > (1 << 24))</div> +<div class="line"><a name="l05421"></a><span class="lineno"> 5421</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Very large image (corrupt?)"</span>);</div> +<div class="line"><a name="l05422"></a><span class="lineno"> 5422</span>  s->img_y = stbi__get32be(s);</div> +<div class="line"><a name="l05423"></a><span class="lineno"> 5423</span>  <span class="keywordflow">if</span> (s->img_y > (1 << 24))</div> +<div class="line"><a name="l05424"></a><span class="lineno"> 5424</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Very large image (corrupt?)"</span>);</div> +<div class="line"><a name="l05425"></a><span class="lineno"> 5425</span>  z->depth = stbi__get8(s);</div> +<div class="line"><a name="l05426"></a><span class="lineno"> 5426</span>  <span class="keywordflow">if</span> (z->depth != 1 && z->depth != 2 && z->depth != 4 &&</div> +<div class="line"><a name="l05427"></a><span class="lineno"> 5427</span>  z->depth != 8 && z->depth != 16)</div> +<div class="line"><a name="l05428"></a><span class="lineno"> 5428</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"1/2/4/8/16-bit only"</span>,</div> +<div class="line"><a name="l05429"></a><span class="lineno"> 5429</span>  <span class="stringliteral">"PNG not supported: 1/2/4/8/16-bit only"</span>);</div> +<div class="line"><a name="l05430"></a><span class="lineno"> 5430</span>  color = stbi__get8(s);</div> +<div class="line"><a name="l05431"></a><span class="lineno"> 5431</span>  <span class="keywordflow">if</span> (color > 6)</div> +<div class="line"><a name="l05432"></a><span class="lineno"> 5432</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad ctype"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05433"></a><span class="lineno"> 5433</span>  <span class="keywordflow">if</span> (color == 3 && z->depth == 16)</div> +<div class="line"><a name="l05434"></a><span class="lineno"> 5434</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad ctype"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05435"></a><span class="lineno"> 5435</span>  <span class="keywordflow">if</span> (color == 3)</div> +<div class="line"><a name="l05436"></a><span class="lineno"> 5436</span>  pal_img_n = 3;</div> +<div class="line"><a name="l05437"></a><span class="lineno"> 5437</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (color & 1)</div> +<div class="line"><a name="l05438"></a><span class="lineno"> 5438</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad ctype"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05439"></a><span class="lineno"> 5439</span>  comp = stbi__get8(s);</div> +<div class="line"><a name="l05440"></a><span class="lineno"> 5440</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l05441"></a><span class="lineno"> 5441</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad comp method"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05442"></a><span class="lineno"> 5442</span>  filter = stbi__get8(s);</div> +<div class="line"><a name="l05443"></a><span class="lineno"> 5443</span>  <span class="keywordflow">if</span> (filter)</div> +<div class="line"><a name="l05444"></a><span class="lineno"> 5444</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad filter method"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05445"></a><span class="lineno"> 5445</span>  interlace = stbi__get8(s);</div> +<div class="line"><a name="l05446"></a><span class="lineno"> 5446</span>  <span class="keywordflow">if</span> (interlace > 1)</div> +<div class="line"><a name="l05447"></a><span class="lineno"> 5447</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad interlace method"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05448"></a><span class="lineno"> 5448</span>  <span class="keywordflow">if</span> (!s->img_x || !s->img_y)</div> +<div class="line"><a name="l05449"></a><span class="lineno"> 5449</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"0-pixel image"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05450"></a><span class="lineno"> 5450</span>  <span class="keywordflow">if</span> (!pal_img_n) {</div> +<div class="line"><a name="l05451"></a><span class="lineno"> 5451</span>  s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0);</div> +<div class="line"><a name="l05452"></a><span class="lineno"> 5452</span>  <span class="keywordflow">if</span> ((1 << 30) / s->img_x / s->img_n < s->img_y)</div> +<div class="line"><a name="l05453"></a><span class="lineno"> 5453</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Image too large to decode"</span>);</div> +<div class="line"><a name="l05454"></a><span class="lineno"> 5454</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_header)</div> +<div class="line"><a name="l05455"></a><span class="lineno"> 5455</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05456"></a><span class="lineno"> 5456</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05457"></a><span class="lineno"> 5457</span>  <span class="comment">// if paletted, then pal_n is our final components, and</span></div> +<div class="line"><a name="l05458"></a><span class="lineno"> 5458</span>  <span class="comment">// img_n is # components to decompress/filter.</span></div> +<div class="line"><a name="l05459"></a><span class="lineno"> 5459</span>  s->img_n = 1;</div> +<div class="line"><a name="l05460"></a><span class="lineno"> 5460</span>  <span class="keywordflow">if</span> ((1 << 30) / s->img_x / 4 < s->img_y)</div> +<div class="line"><a name="l05461"></a><span class="lineno"> 5461</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05462"></a><span class="lineno"> 5462</span>  <span class="comment">// if SCAN_header, have to scan to see if we have a tRNS</span></div> +<div class="line"><a name="l05463"></a><span class="lineno"> 5463</span>  }</div> +<div class="line"><a name="l05464"></a><span class="lineno"> 5464</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05465"></a><span class="lineno"> 5465</span>  }</div> +<div class="line"><a name="l05466"></a><span class="lineno"> 5466</span> </div> +<div class="line"><a name="l05467"></a><span class="lineno"> 5467</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'P'</span>, <span class="charliteral">'L'</span>, <span class="charliteral">'T'</span>, <span class="charliteral">'E'</span>): {</div> +<div class="line"><a name="l05468"></a><span class="lineno"> 5468</span>  <span class="keywordflow">if</span> (first)</div> +<div class="line"><a name="l05469"></a><span class="lineno"> 5469</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05470"></a><span class="lineno"> 5470</span>  <span class="keywordflow">if</span> (c.length > 256 * 3)</div> +<div class="line"><a name="l05471"></a><span class="lineno"> 5471</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"invalid PLTE"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05472"></a><span class="lineno"> 5472</span>  pal_len = c.length / 3;</div> +<div class="line"><a name="l05473"></a><span class="lineno"> 5473</span>  <span class="keywordflow">if</span> (pal_len * 3 != c.length)</div> +<div class="line"><a name="l05474"></a><span class="lineno"> 5474</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"invalid PLTE"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05475"></a><span class="lineno"> 5475</span>  <span class="keywordflow">for</span> (i = 0; i < pal_len; ++i) {</div> +<div class="line"><a name="l05476"></a><span class="lineno"> 5476</span>  palette[i * 4 + 0] = stbi__get8(s);</div> +<div class="line"><a name="l05477"></a><span class="lineno"> 5477</span>  palette[i * 4 + 1] = stbi__get8(s);</div> +<div class="line"><a name="l05478"></a><span class="lineno"> 5478</span>  palette[i * 4 + 2] = stbi__get8(s);</div> +<div class="line"><a name="l05479"></a><span class="lineno"> 5479</span>  palette[i * 4 + 3] = 255;</div> +<div class="line"><a name="l05480"></a><span class="lineno"> 5480</span>  }</div> +<div class="line"><a name="l05481"></a><span class="lineno"> 5481</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05482"></a><span class="lineno"> 5482</span>  }</div> +<div class="line"><a name="l05483"></a><span class="lineno"> 5483</span> </div> +<div class="line"><a name="l05484"></a><span class="lineno"> 5484</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'t'</span>, <span class="charliteral">'R'</span>, <span class="charliteral">'N'</span>, <span class="charliteral">'S'</span>): {</div> +<div class="line"><a name="l05485"></a><span class="lineno"> 5485</span>  <span class="keywordflow">if</span> (first)</div> +<div class="line"><a name="l05486"></a><span class="lineno"> 5486</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05487"></a><span class="lineno"> 5487</span>  <span class="keywordflow">if</span> (z->idata)</div> +<div class="line"><a name="l05488"></a><span class="lineno"> 5488</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"tRNS after IDAT"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05489"></a><span class="lineno"> 5489</span>  <span class="keywordflow">if</span> (pal_img_n) {</div> +<div class="line"><a name="l05490"></a><span class="lineno"> 5490</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_header) {</div> +<div class="line"><a name="l05491"></a><span class="lineno"> 5491</span>  s->img_n = 4;</div> +<div class="line"><a name="l05492"></a><span class="lineno"> 5492</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05493"></a><span class="lineno"> 5493</span>  }</div> +<div class="line"><a name="l05494"></a><span class="lineno"> 5494</span>  <span class="keywordflow">if</span> (pal_len == 0)</div> +<div class="line"><a name="l05495"></a><span class="lineno"> 5495</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"tRNS before PLTE"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05496"></a><span class="lineno"> 5496</span>  <span class="keywordflow">if</span> (c.length > pal_len)</div> +<div class="line"><a name="l05497"></a><span class="lineno"> 5497</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad tRNS len"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05498"></a><span class="lineno"> 5498</span>  pal_img_n = 4;</div> +<div class="line"><a name="l05499"></a><span class="lineno"> 5499</span>  <span class="keywordflow">for</span> (i = 0; i < c.length; ++i)</div> +<div class="line"><a name="l05500"></a><span class="lineno"> 5500</span>  palette[i * 4 + 3] = stbi__get8(s);</div> +<div class="line"><a name="l05501"></a><span class="lineno"> 5501</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05502"></a><span class="lineno"> 5502</span>  <span class="keywordflow">if</span> (!(s->img_n & 1))</div> +<div class="line"><a name="l05503"></a><span class="lineno"> 5503</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"tRNS with alpha"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05504"></a><span class="lineno"> 5504</span>  <span class="keywordflow">if</span> (c.length != (stbi__uint32)s->img_n * 2)</div> +<div class="line"><a name="l05505"></a><span class="lineno"> 5505</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"bad tRNS len"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05506"></a><span class="lineno"> 5506</span>  has_trans = 1;</div> +<div class="line"><a name="l05507"></a><span class="lineno"> 5507</span>  <span class="keywordflow">if</span> (z->depth == 16) {</div> +<div class="line"><a name="l05508"></a><span class="lineno"> 5508</span>  <span class="keywordflow">for</span> (k = 0; k < s->img_n; ++k)</div> +<div class="line"><a name="l05509"></a><span class="lineno"> 5509</span>  tc16[k] = (stbi__uint16)stbi__get16be(</div> +<div class="line"><a name="l05510"></a><span class="lineno"> 5510</span>  s); <span class="comment">// copy the values as-is</span></div> +<div class="line"><a name="l05511"></a><span class="lineno"> 5511</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05512"></a><span class="lineno"> 5512</span>  <span class="keywordflow">for</span> (k = 0; k < s->img_n; ++k)</div> +<div class="line"><a name="l05513"></a><span class="lineno"> 5513</span>  tc[k] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)(stbi__get16be(s) & 255) *</div> +<div class="line"><a name="l05514"></a><span class="lineno"> 5514</span>  stbi__depth_scale_table[z->depth]; <span class="comment">// non 8-bit</span></div> +<div class="line"><a name="l05515"></a><span class="lineno"> 5515</span>  <span class="comment">// images</span></div> +<div class="line"><a name="l05516"></a><span class="lineno"> 5516</span>  <span class="comment">// will be</span></div> +<div class="line"><a name="l05517"></a><span class="lineno"> 5517</span>  <span class="comment">// larger</span></div> +<div class="line"><a name="l05518"></a><span class="lineno"> 5518</span>  }</div> +<div class="line"><a name="l05519"></a><span class="lineno"> 5519</span>  }</div> +<div class="line"><a name="l05520"></a><span class="lineno"> 5520</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05521"></a><span class="lineno"> 5521</span>  }</div> +<div class="line"><a name="l05522"></a><span class="lineno"> 5522</span> </div> +<div class="line"><a name="l05523"></a><span class="lineno"> 5523</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'I'</span>, <span class="charliteral">'D'</span>, <span class="charliteral">'A'</span>, <span class="charliteral">'T'</span>): {</div> +<div class="line"><a name="l05524"></a><span class="lineno"> 5524</span>  <span class="keywordflow">if</span> (first)</div> +<div class="line"><a name="l05525"></a><span class="lineno"> 5525</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05526"></a><span class="lineno"> 5526</span>  <span class="keywordflow">if</span> (pal_img_n && !pal_len)</div> +<div class="line"><a name="l05527"></a><span class="lineno"> 5527</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no PLTE"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05528"></a><span class="lineno"> 5528</span>  <span class="keywordflow">if</span> (scan == STBI__SCAN_header) {</div> +<div class="line"><a name="l05529"></a><span class="lineno"> 5529</span>  s->img_n = pal_img_n;</div> +<div class="line"><a name="l05530"></a><span class="lineno"> 5530</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05531"></a><span class="lineno"> 5531</span>  }</div> +<div class="line"><a name="l05532"></a><span class="lineno"> 5532</span>  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>)(ioff + c.length) < (<span class="keywordtype">int</span>)ioff)</div> +<div class="line"><a name="l05533"></a><span class="lineno"> 5533</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05534"></a><span class="lineno"> 5534</span>  <span class="keywordflow">if</span> (ioff + c.length > idata_limit) {</div> +<div class="line"><a name="l05535"></a><span class="lineno"> 5535</span>  stbi__uint32 idata_limit_old = idata_limit;</div> +<div class="line"><a name="l05536"></a><span class="lineno"> 5536</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p;</div> +<div class="line"><a name="l05537"></a><span class="lineno"> 5537</span>  <span class="keywordflow">if</span> (idata_limit == 0)</div> +<div class="line"><a name="l05538"></a><span class="lineno"> 5538</span>  idata_limit = c.length > 4096 ? c.length : 4096;</div> +<div class="line"><a name="l05539"></a><span class="lineno"> 5539</span>  <span class="keywordflow">while</span> (ioff + c.length > idata_limit)</div> +<div class="line"><a name="l05540"></a><span class="lineno"> 5540</span>  idata_limit *= 2;</div> +<div class="line"><a name="l05541"></a><span class="lineno"> 5541</span>  STBI_NOTUSED(idata_limit_old);</div> +<div class="line"><a name="l05542"></a><span class="lineno"> 5542</span>  p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)STBI_REALLOC_SIZED(z->idata, idata_limit_old,</div> +<div class="line"><a name="l05543"></a><span class="lineno"> 5543</span>  idata_limit);</div> +<div class="line"><a name="l05544"></a><span class="lineno"> 5544</span>  <span class="keywordflow">if</span> (p == NULL)</div> +<div class="line"><a name="l05545"></a><span class="lineno"> 5545</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l05546"></a><span class="lineno"> 5546</span>  z->idata = p;</div> +<div class="line"><a name="l05547"></a><span class="lineno"> 5547</span>  }</div> +<div class="line"><a name="l05548"></a><span class="lineno"> 5548</span>  <span class="keywordflow">if</span> (!stbi__getn(s, z->idata + ioff, c.length))</div> +<div class="line"><a name="l05549"></a><span class="lineno"> 5549</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"outofdata"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05550"></a><span class="lineno"> 5550</span>  ioff += c.length;</div> +<div class="line"><a name="l05551"></a><span class="lineno"> 5551</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05552"></a><span class="lineno"> 5552</span>  }</div> <div class="line"><a name="l05553"></a><span class="lineno"> 5553</span> </div> -<div class="line"><a name="l05554"></a><span class="lineno"> 5554</span>  <span class="comment">// the things I do to get rid of an error message, and yet keep</span></div> -<div class="line"><a name="l05555"></a><span class="lineno"> 5555</span>  <span class="comment">// Microsoft's C compilers happy... [8^(</span></div> -<div class="line"><a name="l05556"></a><span class="lineno"> 5556</span>  tga_palette_start = tga_palette_len = tga_palette_bits =</div> -<div class="line"><a name="l05557"></a><span class="lineno"> 5557</span>  tga_x_origin = tga_y_origin = 0;</div> -<div class="line"><a name="l05558"></a><span class="lineno"> 5558</span>  <span class="comment">// OK, done</span></div> -<div class="line"><a name="l05559"></a><span class="lineno"> 5559</span>  <span class="keywordflow">return</span> tga_data;</div> -<div class="line"><a name="l05560"></a><span class="lineno"> 5560</span> }</div> -<div class="line"><a name="l05561"></a><span class="lineno"> 5561</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l05562"></a><span class="lineno"> 5562</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l05563"></a><span class="lineno"> 5563</span> <span class="comment">// *************************************************************************************************</span></div> -<div class="line"><a name="l05564"></a><span class="lineno"> 5564</span> <span class="comment">// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB</span></div> -<div class="line"><a name="l05565"></a><span class="lineno"> 5565</span> </div> -<div class="line"><a name="l05566"></a><span class="lineno"> 5566</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> -<div class="line"><a name="l05567"></a><span class="lineno"> 5567</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_test(stbi__context *s)</div> -<div class="line"><a name="l05568"></a><span class="lineno"> 5568</span> {</div> -<div class="line"><a name="l05569"></a><span class="lineno"> 5569</span>  <span class="keywordtype">int</span> r = (stbi__get32be(s) == 0x38425053);</div> -<div class="line"><a name="l05570"></a><span class="lineno"> 5570</span>  stbi__rewind(s);</div> -<div class="line"><a name="l05571"></a><span class="lineno"> 5571</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l05572"></a><span class="lineno"> 5572</span> }</div> -<div class="line"><a name="l05573"></a><span class="lineno"> 5573</span> </div> -<div class="line"><a name="l05574"></a><span class="lineno"> 5574</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_decode_rle(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p, <span class="keywordtype">int</span> pixelCount)</div> -<div class="line"><a name="l05575"></a><span class="lineno"> 5575</span> {</div> -<div class="line"><a name="l05576"></a><span class="lineno"> 5576</span>  <span class="keywordtype">int</span> count, nleft, len;</div> -<div class="line"><a name="l05577"></a><span class="lineno"> 5577</span> </div> -<div class="line"><a name="l05578"></a><span class="lineno"> 5578</span>  count = 0;</div> -<div class="line"><a name="l05579"></a><span class="lineno"> 5579</span>  <span class="keywordflow">while</span> ((nleft = pixelCount - count) > 0) {</div> -<div class="line"><a name="l05580"></a><span class="lineno"> 5580</span>  len = stbi__get8(s);</div> -<div class="line"><a name="l05581"></a><span class="lineno"> 5581</span>  <span class="keywordflow">if</span> (len == 128) {</div> -<div class="line"><a name="l05582"></a><span class="lineno"> 5582</span>  <span class="comment">// No-op.</span></div> -<div class="line"><a name="l05583"></a><span class="lineno"> 5583</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (len < 128) {</div> -<div class="line"><a name="l05584"></a><span class="lineno"> 5584</span>  <span class="comment">// Copy next len+1 bytes literally.</span></div> -<div class="line"><a name="l05585"></a><span class="lineno"> 5585</span>  len++;</div> -<div class="line"><a name="l05586"></a><span class="lineno"> 5586</span>  <span class="keywordflow">if</span> (len > nleft) <span class="keywordflow">return</span> 0; <span class="comment">// corrupt data</span></div> -<div class="line"><a name="l05587"></a><span class="lineno"> 5587</span>  count += len;</div> -<div class="line"><a name="l05588"></a><span class="lineno"> 5588</span>  <span class="keywordflow">while</span> (len) {</div> -<div class="line"><a name="l05589"></a><span class="lineno"> 5589</span>  *p = stbi__get8(s);</div> -<div class="line"><a name="l05590"></a><span class="lineno"> 5590</span>  p += 4;</div> -<div class="line"><a name="l05591"></a><span class="lineno"> 5591</span>  len--;</div> -<div class="line"><a name="l05592"></a><span class="lineno"> 5592</span>  }</div> -<div class="line"><a name="l05593"></a><span class="lineno"> 5593</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (len > 128) {</div> -<div class="line"><a name="l05594"></a><span class="lineno"> 5594</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> val;</div> -<div class="line"><a name="l05595"></a><span class="lineno"> 5595</span>  <span class="comment">// Next -len+1 bytes in the dest are replicated from next source byte.</span></div> -<div class="line"><a name="l05596"></a><span class="lineno"> 5596</span>  <span class="comment">// (Interpret len as a negative 8-bit int.)</span></div> -<div class="line"><a name="l05597"></a><span class="lineno"> 5597</span>  len = 257 - len;</div> -<div class="line"><a name="l05598"></a><span class="lineno"> 5598</span>  <span class="keywordflow">if</span> (len > nleft) <span class="keywordflow">return</span> 0; <span class="comment">// corrupt data</span></div> -<div class="line"><a name="l05599"></a><span class="lineno"> 5599</span>  val = stbi__get8(s);</div> -<div class="line"><a name="l05600"></a><span class="lineno"> 5600</span>  count += len;</div> -<div class="line"><a name="l05601"></a><span class="lineno"> 5601</span>  <span class="keywordflow">while</span> (len) {</div> -<div class="line"><a name="l05602"></a><span class="lineno"> 5602</span>  *p = val;</div> -<div class="line"><a name="l05603"></a><span class="lineno"> 5603</span>  p += 4;</div> -<div class="line"><a name="l05604"></a><span class="lineno"> 5604</span>  len--;</div> -<div class="line"><a name="l05605"></a><span class="lineno"> 5605</span>  }</div> -<div class="line"><a name="l05606"></a><span class="lineno"> 5606</span>  }</div> -<div class="line"><a name="l05607"></a><span class="lineno"> 5607</span>  }</div> -<div class="line"><a name="l05608"></a><span class="lineno"> 5608</span> </div> -<div class="line"><a name="l05609"></a><span class="lineno"> 5609</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l05610"></a><span class="lineno"> 5610</span> }</div> -<div class="line"><a name="l05611"></a><span class="lineno"> 5611</span> </div> -<div class="line"><a name="l05612"></a><span class="lineno"> 5612</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__psd_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri, <span class="keywordtype">int</span> bpc)</div> -<div class="line"><a name="l05613"></a><span class="lineno"> 5613</span> {</div> -<div class="line"><a name="l05614"></a><span class="lineno"> 5614</span>  <span class="keywordtype">int</span> pixelCount;</div> -<div class="line"><a name="l05615"></a><span class="lineno"> 5615</span>  <span class="keywordtype">int</span> channelCount, compression;</div> -<div class="line"><a name="l05616"></a><span class="lineno"> 5616</span>  <span class="keywordtype">int</span> channel, i;</div> -<div class="line"><a name="l05617"></a><span class="lineno"> 5617</span>  <span class="keywordtype">int</span> bitdepth;</div> -<div class="line"><a name="l05618"></a><span class="lineno"> 5618</span>  <span class="keywordtype">int</span> w,h;</div> -<div class="line"><a name="l05619"></a><span class="lineno"> 5619</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out;</div> -<div class="line"><a name="l05620"></a><span class="lineno"> 5620</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l05621"></a><span class="lineno"> 5621</span> </div> -<div class="line"><a name="l05622"></a><span class="lineno"> 5622</span>  <span class="comment">// Check identifier</span></div> -<div class="line"><a name="l05623"></a><span class="lineno"> 5623</span>  <span class="keywordflow">if</span> (stbi__get32be(s) != 0x38425053) <span class="comment">// "8BPS"</span></div> -<div class="line"><a name="l05624"></a><span class="lineno"> 5624</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"not PSD"</span>, <span class="stringliteral">"Corrupt PSD image"</span>);</div> -<div class="line"><a name="l05625"></a><span class="lineno"> 5625</span> </div> -<div class="line"><a name="l05626"></a><span class="lineno"> 5626</span>  <span class="comment">// Check file type version.</span></div> -<div class="line"><a name="l05627"></a><span class="lineno"> 5627</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 1)</div> -<div class="line"><a name="l05628"></a><span class="lineno"> 5628</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"wrong version"</span>, <span class="stringliteral">"Unsupported version of PSD image"</span>);</div> -<div class="line"><a name="l05629"></a><span class="lineno"> 5629</span> </div> -<div class="line"><a name="l05630"></a><span class="lineno"> 5630</span>  <span class="comment">// Skip 6 reserved bytes.</span></div> -<div class="line"><a name="l05631"></a><span class="lineno"> 5631</span>  stbi__skip(s, 6 );</div> -<div class="line"><a name="l05632"></a><span class="lineno"> 5632</span> </div> -<div class="line"><a name="l05633"></a><span class="lineno"> 5633</span>  <span class="comment">// Read the number of channels (R, G, B, A, etc).</span></div> -<div class="line"><a name="l05634"></a><span class="lineno"> 5634</span>  channelCount = stbi__get16be(s);</div> -<div class="line"><a name="l05635"></a><span class="lineno"> 5635</span>  <span class="keywordflow">if</span> (channelCount < 0 || channelCount > 16)</div> -<div class="line"><a name="l05636"></a><span class="lineno"> 5636</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"wrong channel count"</span>, <span class="stringliteral">"Unsupported number of channels in PSD image"</span>);</div> -<div class="line"><a name="l05637"></a><span class="lineno"> 5637</span> </div> -<div class="line"><a name="l05638"></a><span class="lineno"> 5638</span>  <span class="comment">// Read the rows and columns of the image.</span></div> -<div class="line"><a name="l05639"></a><span class="lineno"> 5639</span>  h = stbi__get32be(s);</div> -<div class="line"><a name="l05640"></a><span class="lineno"> 5640</span>  w = stbi__get32be(s);</div> -<div class="line"><a name="l05641"></a><span class="lineno"> 5641</span> </div> -<div class="line"><a name="l05642"></a><span class="lineno"> 5642</span>  <span class="comment">// Make sure the depth is 8 bits.</span></div> -<div class="line"><a name="l05643"></a><span class="lineno"> 5643</span>  bitdepth = stbi__get16be(s);</div> -<div class="line"><a name="l05644"></a><span class="lineno"> 5644</span>  <span class="keywordflow">if</span> (bitdepth != 8 && bitdepth != 16)</div> -<div class="line"><a name="l05645"></a><span class="lineno"> 5645</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unsupported bit depth"</span>, <span class="stringliteral">"PSD bit depth is not 8 or 16 bit"</span>);</div> -<div class="line"><a name="l05646"></a><span class="lineno"> 5646</span> </div> -<div class="line"><a name="l05647"></a><span class="lineno"> 5647</span>  <span class="comment">// Make sure the color mode is RGB.</span></div> -<div class="line"><a name="l05648"></a><span class="lineno"> 5648</span>  <span class="comment">// Valid options are:</span></div> -<div class="line"><a name="l05649"></a><span class="lineno"> 5649</span>  <span class="comment">// 0: Bitmap</span></div> -<div class="line"><a name="l05650"></a><span class="lineno"> 5650</span>  <span class="comment">// 1: Grayscale</span></div> -<div class="line"><a name="l05651"></a><span class="lineno"> 5651</span>  <span class="comment">// 2: Indexed color</span></div> -<div class="line"><a name="l05652"></a><span class="lineno"> 5652</span>  <span class="comment">// 3: RGB color</span></div> -<div class="line"><a name="l05653"></a><span class="lineno"> 5653</span>  <span class="comment">// 4: CMYK color</span></div> -<div class="line"><a name="l05654"></a><span class="lineno"> 5654</span>  <span class="comment">// 7: Multichannel</span></div> -<div class="line"><a name="l05655"></a><span class="lineno"> 5655</span>  <span class="comment">// 8: Duotone</span></div> -<div class="line"><a name="l05656"></a><span class="lineno"> 5656</span>  <span class="comment">// 9: Lab color</span></div> -<div class="line"><a name="l05657"></a><span class="lineno"> 5657</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 3)</div> -<div class="line"><a name="l05658"></a><span class="lineno"> 5658</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"wrong color format"</span>, <span class="stringliteral">"PSD is not in RGB color format"</span>);</div> -<div class="line"><a name="l05659"></a><span class="lineno"> 5659</span> </div> -<div class="line"><a name="l05660"></a><span class="lineno"> 5660</span>  <span class="comment">// Skip the Mode Data. (It's the palette for indexed color; other info for other modes.)</span></div> -<div class="line"><a name="l05661"></a><span class="lineno"> 5661</span>  stbi__skip(s,stbi__get32be(s) );</div> -<div class="line"><a name="l05662"></a><span class="lineno"> 5662</span> </div> -<div class="line"><a name="l05663"></a><span class="lineno"> 5663</span>  <span class="comment">// Skip the image resources. (resolution, pen tool paths, etc)</span></div> -<div class="line"><a name="l05664"></a><span class="lineno"> 5664</span>  stbi__skip(s, stbi__get32be(s) );</div> -<div class="line"><a name="l05665"></a><span class="lineno"> 5665</span> </div> -<div class="line"><a name="l05666"></a><span class="lineno"> 5666</span>  <span class="comment">// Skip the reserved data.</span></div> -<div class="line"><a name="l05667"></a><span class="lineno"> 5667</span>  stbi__skip(s, stbi__get32be(s) );</div> -<div class="line"><a name="l05668"></a><span class="lineno"> 5668</span> </div> -<div class="line"><a name="l05669"></a><span class="lineno"> 5669</span>  <span class="comment">// Find out if the data is compressed.</span></div> -<div class="line"><a name="l05670"></a><span class="lineno"> 5670</span>  <span class="comment">// Known values:</span></div> -<div class="line"><a name="l05671"></a><span class="lineno"> 5671</span>  <span class="comment">// 0: no compression</span></div> -<div class="line"><a name="l05672"></a><span class="lineno"> 5672</span>  <span class="comment">// 1: RLE compressed</span></div> -<div class="line"><a name="l05673"></a><span class="lineno"> 5673</span>  compression = stbi__get16be(s);</div> -<div class="line"><a name="l05674"></a><span class="lineno"> 5674</span>  <span class="keywordflow">if</span> (compression > 1)</div> -<div class="line"><a name="l05675"></a><span class="lineno"> 5675</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad compression"</span>, <span class="stringliteral">"PSD has an unknown compression format"</span>);</div> -<div class="line"><a name="l05676"></a><span class="lineno"> 5676</span> </div> -<div class="line"><a name="l05677"></a><span class="lineno"> 5677</span>  <span class="comment">// Check size</span></div> -<div class="line"><a name="l05678"></a><span class="lineno"> 5678</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(4, w, h, 0))</div> -<div class="line"><a name="l05679"></a><span class="lineno"> 5679</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt PSD"</span>);</div> -<div class="line"><a name="l05680"></a><span class="lineno"> 5680</span> </div> -<div class="line"><a name="l05681"></a><span class="lineno"> 5681</span>  <span class="comment">// Create the destination image.</span></div> -<div class="line"><a name="l05682"></a><span class="lineno"> 5682</span> </div> -<div class="line"><a name="l05683"></a><span class="lineno"> 5683</span>  <span class="keywordflow">if</span> (!compression && bitdepth == 16 && bpc == 16) {</div> -<div class="line"><a name="l05684"></a><span class="lineno"> 5684</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(8, w, h, 0);</div> -<div class="line"><a name="l05685"></a><span class="lineno"> 5685</span>  ri->bits_per_channel = 16;</div> -<div class="line"><a name="l05686"></a><span class="lineno"> 5686</span>  } <span class="keywordflow">else</span></div> -<div class="line"><a name="l05687"></a><span class="lineno"> 5687</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc(4 * w*h);</div> -<div class="line"><a name="l05688"></a><span class="lineno"> 5688</span> </div> -<div class="line"><a name="l05689"></a><span class="lineno"> 5689</span>  <span class="keywordflow">if</span> (!out) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l05690"></a><span class="lineno"> 5690</span>  pixelCount = w*h;</div> -<div class="line"><a name="l05691"></a><span class="lineno"> 5691</span> </div> -<div class="line"><a name="l05692"></a><span class="lineno"> 5692</span>  <span class="comment">// Initialize the data to zero.</span></div> -<div class="line"><a name="l05693"></a><span class="lineno"> 5693</span>  <span class="comment">//memset( out, 0, pixelCount * 4 );</span></div> -<div class="line"><a name="l05694"></a><span class="lineno"> 5694</span> </div> -<div class="line"><a name="l05695"></a><span class="lineno"> 5695</span>  <span class="comment">// Finally, the image data.</span></div> -<div class="line"><a name="l05696"></a><span class="lineno"> 5696</span>  <span class="keywordflow">if</span> (compression) {</div> -<div class="line"><a name="l05697"></a><span class="lineno"> 5697</span>  <span class="comment">// RLE as used by .PSD and .TIFF</span></div> -<div class="line"><a name="l05698"></a><span class="lineno"> 5698</span>  <span class="comment">// Loop until you get the number of unpacked bytes you are expecting:</span></div> -<div class="line"><a name="l05699"></a><span class="lineno"> 5699</span>  <span class="comment">// Read the next source byte into n.</span></div> -<div class="line"><a name="l05700"></a><span class="lineno"> 5700</span>  <span class="comment">// If n is between 0 and 127 inclusive, copy the next n+1 bytes literally.</span></div> -<div class="line"><a name="l05701"></a><span class="lineno"> 5701</span>  <span class="comment">// Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times.</span></div> -<div class="line"><a name="l05702"></a><span class="lineno"> 5702</span>  <span class="comment">// Else if n is 128, noop.</span></div> -<div class="line"><a name="l05703"></a><span class="lineno"> 5703</span>  <span class="comment">// Endloop</span></div> -<div class="line"><a name="l05704"></a><span class="lineno"> 5704</span> </div> -<div class="line"><a name="l05705"></a><span class="lineno"> 5705</span>  <span class="comment">// The RLE-compressed data is preceeded by a 2-byte data count for each row in the data,</span></div> -<div class="line"><a name="l05706"></a><span class="lineno"> 5706</span>  <span class="comment">// which we're going to just skip.</span></div> -<div class="line"><a name="l05707"></a><span class="lineno"> 5707</span>  stbi__skip(s, h * channelCount * 2 );</div> +<div class="line"><a name="l05554"></a><span class="lineno"> 5554</span>  <span class="keywordflow">case</span> STBI__PNG_TYPE(<span class="charliteral">'I'</span>, <span class="charliteral">'E'</span>, <span class="charliteral">'N'</span>, <span class="charliteral">'D'</span>): {</div> +<div class="line"><a name="l05555"></a><span class="lineno"> 5555</span>  stbi__uint32 raw_len, bpl;</div> +<div class="line"><a name="l05556"></a><span class="lineno"> 5556</span>  <span class="keywordflow">if</span> (first)</div> +<div class="line"><a name="l05557"></a><span class="lineno"> 5557</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05558"></a><span class="lineno"> 5558</span>  <span class="keywordflow">if</span> (scan != STBI__SCAN_load)</div> +<div class="line"><a name="l05559"></a><span class="lineno"> 5559</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05560"></a><span class="lineno"> 5560</span>  <span class="keywordflow">if</span> (z->idata == NULL)</div> +<div class="line"><a name="l05561"></a><span class="lineno"> 5561</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"no IDAT"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05562"></a><span class="lineno"> 5562</span>  <span class="comment">// initial guess for decoded data size to avoid unnecessary reallocs</span></div> +<div class="line"><a name="l05563"></a><span class="lineno"> 5563</span>  bpl =</div> +<div class="line"><a name="l05564"></a><span class="lineno"> 5564</span>  (s->img_x * z->depth + 7) / 8; <span class="comment">// bytes per line, per component</span></div> +<div class="line"><a name="l05565"></a><span class="lineno"> 5565</span>  raw_len = bpl * s->img_y * s->img_n <span class="comment">/* pixels */</span> +</div> +<div class="line"><a name="l05566"></a><span class="lineno"> 5566</span>  s->img_y <span class="comment">/* filter mode per row */</span>;</div> +<div class="line"><a name="l05567"></a><span class="lineno"> 5567</span>  z->expanded =</div> +<div class="line"><a name="l05568"></a><span class="lineno"> 5568</span>  (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)<a class="code" href="stb__image_8h.html#a038b0e741859a482b8b9d60167e54d27">stbi_zlib_decode_malloc_guesssize_headerflag</a>(</div> +<div class="line"><a name="l05569"></a><span class="lineno"> 5569</span>  (<span class="keywordtype">char</span> *)z->idata, ioff, raw_len, (<span class="keywordtype">int</span> *)&raw_len,</div> +<div class="line"><a name="l05570"></a><span class="lineno"> 5570</span>  !is_iphone);</div> +<div class="line"><a name="l05571"></a><span class="lineno"> 5571</span>  <span class="keywordflow">if</span> (z->expanded == NULL)</div> +<div class="line"><a name="l05572"></a><span class="lineno"> 5572</span>  <span class="keywordflow">return</span> 0; <span class="comment">// zlib should set error</span></div> +<div class="line"><a name="l05573"></a><span class="lineno"> 5573</span>  STBI_FREE(z->idata);</div> +<div class="line"><a name="l05574"></a><span class="lineno"> 5574</span>  z->idata = NULL;</div> +<div class="line"><a name="l05575"></a><span class="lineno"> 5575</span>  <span class="keywordflow">if</span> ((req_comp == s->img_n + 1 && req_comp != 3 && !pal_img_n) ||</div> +<div class="line"><a name="l05576"></a><span class="lineno"> 5576</span>  has_trans)</div> +<div class="line"><a name="l05577"></a><span class="lineno"> 5577</span>  s->img_out_n = s->img_n + 1;</div> +<div class="line"><a name="l05578"></a><span class="lineno"> 5578</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l05579"></a><span class="lineno"> 5579</span>  s->img_out_n = s->img_n;</div> +<div class="line"><a name="l05580"></a><span class="lineno"> 5580</span>  <span class="keywordflow">if</span> (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n,</div> +<div class="line"><a name="l05581"></a><span class="lineno"> 5581</span>  z->depth, color, interlace))</div> +<div class="line"><a name="l05582"></a><span class="lineno"> 5582</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05583"></a><span class="lineno"> 5583</span>  <span class="keywordflow">if</span> (has_trans) {</div> +<div class="line"><a name="l05584"></a><span class="lineno"> 5584</span>  <span class="keywordflow">if</span> (z->depth == 16) {</div> +<div class="line"><a name="l05585"></a><span class="lineno"> 5585</span>  <span class="keywordflow">if</span> (!stbi__compute_transparency16(z, tc16, s->img_out_n))</div> +<div class="line"><a name="l05586"></a><span class="lineno"> 5586</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05587"></a><span class="lineno"> 5587</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05588"></a><span class="lineno"> 5588</span>  <span class="keywordflow">if</span> (!stbi__compute_transparency(z, tc, s->img_out_n))</div> +<div class="line"><a name="l05589"></a><span class="lineno"> 5589</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05590"></a><span class="lineno"> 5590</span>  }</div> +<div class="line"><a name="l05591"></a><span class="lineno"> 5591</span>  }</div> +<div class="line"><a name="l05592"></a><span class="lineno"> 5592</span>  <span class="keywordflow">if</span> (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2)</div> +<div class="line"><a name="l05593"></a><span class="lineno"> 5593</span>  stbi__de_iphone(z);</div> +<div class="line"><a name="l05594"></a><span class="lineno"> 5594</span>  <span class="keywordflow">if</span> (pal_img_n) {</div> +<div class="line"><a name="l05595"></a><span class="lineno"> 5595</span>  <span class="comment">// pal_img_n == 3 or 4</span></div> +<div class="line"><a name="l05596"></a><span class="lineno"> 5596</span>  s->img_n = pal_img_n; <span class="comment">// record the actual colors we had</span></div> +<div class="line"><a name="l05597"></a><span class="lineno"> 5597</span>  s->img_out_n = pal_img_n;</div> +<div class="line"><a name="l05598"></a><span class="lineno"> 5598</span>  <span class="keywordflow">if</span> (req_comp >= 3)</div> +<div class="line"><a name="l05599"></a><span class="lineno"> 5599</span>  s->img_out_n = req_comp;</div> +<div class="line"><a name="l05600"></a><span class="lineno"> 5600</span>  <span class="keywordflow">if</span> (!stbi__expand_png_palette(z, palette, pal_len,</div> +<div class="line"><a name="l05601"></a><span class="lineno"> 5601</span>  s->img_out_n))</div> +<div class="line"><a name="l05602"></a><span class="lineno"> 5602</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05603"></a><span class="lineno"> 5603</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (has_trans) {</div> +<div class="line"><a name="l05604"></a><span class="lineno"> 5604</span>  <span class="comment">// non-paletted image with tRNS -> source image has (constant)</span></div> +<div class="line"><a name="l05605"></a><span class="lineno"> 5605</span>  <span class="comment">// alpha</span></div> +<div class="line"><a name="l05606"></a><span class="lineno"> 5606</span>  ++s->img_n;</div> +<div class="line"><a name="l05607"></a><span class="lineno"> 5607</span>  }</div> +<div class="line"><a name="l05608"></a><span class="lineno"> 5608</span>  STBI_FREE(z->expanded);</div> +<div class="line"><a name="l05609"></a><span class="lineno"> 5609</span>  z->expanded = NULL;</div> +<div class="line"><a name="l05610"></a><span class="lineno"> 5610</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05611"></a><span class="lineno"> 5611</span>  }</div> +<div class="line"><a name="l05612"></a><span class="lineno"> 5612</span> </div> +<div class="line"><a name="l05613"></a><span class="lineno"> 5613</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l05614"></a><span class="lineno"> 5614</span>  <span class="comment">// if critical, fail</span></div> +<div class="line"><a name="l05615"></a><span class="lineno"> 5615</span>  <span class="keywordflow">if</span> (first)</div> +<div class="line"><a name="l05616"></a><span class="lineno"> 5616</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"first not IHDR"</span>, <span class="stringliteral">"Corrupt PNG"</span>);</div> +<div class="line"><a name="l05617"></a><span class="lineno"> 5617</span>  <span class="keywordflow">if</span> ((c.type & (1 << 29)) == 0) {</div> +<div class="line"><a name="l05618"></a><span class="lineno"> 5618</span> <span class="preprocessor">#ifndef STBI_NO_FAILURE_STRINGS</span></div> +<div class="line"><a name="l05619"></a><span class="lineno"> 5619</span> <span class="preprocessor"></span> <span class="comment">// not threadsafe</span></div> +<div class="line"><a name="l05620"></a><span class="lineno"> 5620</span>  <span class="keyword">static</span> <span class="keywordtype">char</span> invalid_chunk[] = <span class="stringliteral">"XXXX PNG chunk not known"</span>;</div> +<div class="line"><a name="l05621"></a><span class="lineno"> 5621</span>  invalid_chunk[0] = STBI__BYTECAST(c.type >> 24);</div> +<div class="line"><a name="l05622"></a><span class="lineno"> 5622</span>  invalid_chunk[1] = STBI__BYTECAST(c.type >> 16);</div> +<div class="line"><a name="l05623"></a><span class="lineno"> 5623</span>  invalid_chunk[2] = STBI__BYTECAST(c.type >> 8);</div> +<div class="line"><a name="l05624"></a><span class="lineno"> 5624</span>  invalid_chunk[3] = STBI__BYTECAST(c.type >> 0);</div> +<div class="line"><a name="l05625"></a><span class="lineno"> 5625</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l05626"></a><span class="lineno"> 5626</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> stbi__err(invalid_chunk,</div> +<div class="line"><a name="l05627"></a><span class="lineno"> 5627</span>  <span class="stringliteral">"PNG not supported: unknown PNG chunk type"</span>);</div> +<div class="line"><a name="l05628"></a><span class="lineno"> 5628</span>  }</div> +<div class="line"><a name="l05629"></a><span class="lineno"> 5629</span>  stbi__skip(s, c.length);</div> +<div class="line"><a name="l05630"></a><span class="lineno"> 5630</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05631"></a><span class="lineno"> 5631</span>  }</div> +<div class="line"><a name="l05632"></a><span class="lineno"> 5632</span>  <span class="comment">// end of PNG chunk, read and skip CRC</span></div> +<div class="line"><a name="l05633"></a><span class="lineno"> 5633</span>  stbi__get32be(s);</div> +<div class="line"><a name="l05634"></a><span class="lineno"> 5634</span>  }</div> +<div class="line"><a name="l05635"></a><span class="lineno"> 5635</span> }</div> +<div class="line"><a name="l05636"></a><span class="lineno"> 5636</span> </div> +<div class="line"><a name="l05637"></a><span class="lineno"> 5637</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__do_png(stbi__png *p, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *n, <span class="keywordtype">int</span> req_comp,</div> +<div class="line"><a name="l05638"></a><span class="lineno"> 5638</span>  stbi__result_info *ri)</div> +<div class="line"><a name="l05639"></a><span class="lineno"> 5639</span> {</div> +<div class="line"><a name="l05640"></a><span class="lineno"> 5640</span>  <span class="keywordtype">void</span> *result = NULL;</div> +<div class="line"><a name="l05641"></a><span class="lineno"> 5641</span>  <span class="keywordflow">if</span> (req_comp < 0 || req_comp > 4)</div> +<div class="line"><a name="l05642"></a><span class="lineno"> 5642</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad req_comp"</span>, <span class="stringliteral">"Internal error"</span>);</div> +<div class="line"><a name="l05643"></a><span class="lineno"> 5643</span>  <span class="keywordflow">if</span> (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) {</div> +<div class="line"><a name="l05644"></a><span class="lineno"> 5644</span>  <span class="keywordflow">if</span> (p->depth < 8)</div> +<div class="line"><a name="l05645"></a><span class="lineno"> 5645</span>  ri->bits_per_channel = 8;</div> +<div class="line"><a name="l05646"></a><span class="lineno"> 5646</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l05647"></a><span class="lineno"> 5647</span>  ri->bits_per_channel = p->depth;</div> +<div class="line"><a name="l05648"></a><span class="lineno"> 5648</span>  result = p->out;</div> +<div class="line"><a name="l05649"></a><span class="lineno"> 5649</span>  p->out = NULL;</div> +<div class="line"><a name="l05650"></a><span class="lineno"> 5650</span>  <span class="keywordflow">if</span> (req_comp && req_comp != p->s->img_out_n) {</div> +<div class="line"><a name="l05651"></a><span class="lineno"> 5651</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 8)</div> +<div class="line"><a name="l05652"></a><span class="lineno"> 5652</span>  result = stbi__convert_format((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)result,</div> +<div class="line"><a name="l05653"></a><span class="lineno"> 5653</span>  p->s->img_out_n, req_comp,</div> +<div class="line"><a name="l05654"></a><span class="lineno"> 5654</span>  p->s->img_x, p->s->img_y);</div> +<div class="line"><a name="l05655"></a><span class="lineno"> 5655</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l05656"></a><span class="lineno"> 5656</span>  result = stbi__convert_format16((stbi__uint16 *)result,</div> +<div class="line"><a name="l05657"></a><span class="lineno"> 5657</span>  p->s->img_out_n, req_comp,</div> +<div class="line"><a name="l05658"></a><span class="lineno"> 5658</span>  p->s->img_x, p->s->img_y);</div> +<div class="line"><a name="l05659"></a><span class="lineno"> 5659</span>  p->s->img_out_n = req_comp;</div> +<div class="line"><a name="l05660"></a><span class="lineno"> 5660</span>  <span class="keywordflow">if</span> (result == NULL)</div> +<div class="line"><a name="l05661"></a><span class="lineno"> 5661</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l05662"></a><span class="lineno"> 5662</span>  }</div> +<div class="line"><a name="l05663"></a><span class="lineno"> 5663</span>  *x = p->s->img_x;</div> +<div class="line"><a name="l05664"></a><span class="lineno"> 5664</span>  *y = p->s->img_y;</div> +<div class="line"><a name="l05665"></a><span class="lineno"> 5665</span>  <span class="keywordflow">if</span> (n)</div> +<div class="line"><a name="l05666"></a><span class="lineno"> 5666</span>  *n = p->s->img_n;</div> +<div class="line"><a name="l05667"></a><span class="lineno"> 5667</span>  }</div> +<div class="line"><a name="l05668"></a><span class="lineno"> 5668</span>  STBI_FREE(p->out);</div> +<div class="line"><a name="l05669"></a><span class="lineno"> 5669</span>  p->out = NULL;</div> +<div class="line"><a name="l05670"></a><span class="lineno"> 5670</span>  STBI_FREE(p->expanded);</div> +<div class="line"><a name="l05671"></a><span class="lineno"> 5671</span>  p->expanded = NULL;</div> +<div class="line"><a name="l05672"></a><span class="lineno"> 5672</span>  STBI_FREE(p->idata);</div> +<div class="line"><a name="l05673"></a><span class="lineno"> 5673</span>  p->idata = NULL;</div> +<div class="line"><a name="l05674"></a><span class="lineno"> 5674</span> </div> +<div class="line"><a name="l05675"></a><span class="lineno"> 5675</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l05676"></a><span class="lineno"> 5676</span> }</div> +<div class="line"><a name="l05677"></a><span class="lineno"> 5677</span> </div> +<div class="line"><a name="l05678"></a><span class="lineno"> 5678</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__png_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l05679"></a><span class="lineno"> 5679</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l05680"></a><span class="lineno"> 5680</span> {</div> +<div class="line"><a name="l05681"></a><span class="lineno"> 5681</span>  stbi__png p;</div> +<div class="line"><a name="l05682"></a><span class="lineno"> 5682</span>  p.s = s;</div> +<div class="line"><a name="l05683"></a><span class="lineno"> 5683</span>  <span class="keywordflow">return</span> stbi__do_png(&p, x, y, comp, req_comp, ri);</div> +<div class="line"><a name="l05684"></a><span class="lineno"> 5684</span> }</div> +<div class="line"><a name="l05685"></a><span class="lineno"> 5685</span> </div> +<div class="line"><a name="l05686"></a><span class="lineno"> 5686</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_test(stbi__context *s)</div> +<div class="line"><a name="l05687"></a><span class="lineno"> 5687</span> {</div> +<div class="line"><a name="l05688"></a><span class="lineno"> 5688</span>  <span class="keywordtype">int</span> r;</div> +<div class="line"><a name="l05689"></a><span class="lineno"> 5689</span>  r = stbi__check_png_header(s);</div> +<div class="line"><a name="l05690"></a><span class="lineno"> 5690</span>  stbi__rewind(s);</div> +<div class="line"><a name="l05691"></a><span class="lineno"> 5691</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l05692"></a><span class="lineno"> 5692</span> }</div> +<div class="line"><a name="l05693"></a><span class="lineno"> 5693</span> </div> +<div class="line"><a name="l05694"></a><span class="lineno"> 5694</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_info_raw(stbi__png *p, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l05695"></a><span class="lineno"> 5695</span> {</div> +<div class="line"><a name="l05696"></a><span class="lineno"> 5696</span>  <span class="keywordflow">if</span> (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) {</div> +<div class="line"><a name="l05697"></a><span class="lineno"> 5697</span>  stbi__rewind(p->s);</div> +<div class="line"><a name="l05698"></a><span class="lineno"> 5698</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05699"></a><span class="lineno"> 5699</span>  }</div> +<div class="line"><a name="l05700"></a><span class="lineno"> 5700</span>  <span class="keywordflow">if</span> (x)</div> +<div class="line"><a name="l05701"></a><span class="lineno"> 5701</span>  *x = p->s->img_x;</div> +<div class="line"><a name="l05702"></a><span class="lineno"> 5702</span>  <span class="keywordflow">if</span> (y)</div> +<div class="line"><a name="l05703"></a><span class="lineno"> 5703</span>  *y = p->s->img_y;</div> +<div class="line"><a name="l05704"></a><span class="lineno"> 5704</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l05705"></a><span class="lineno"> 5705</span>  *comp = p->s->img_n;</div> +<div class="line"><a name="l05706"></a><span class="lineno"> 5706</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l05707"></a><span class="lineno"> 5707</span> }</div> <div class="line"><a name="l05708"></a><span class="lineno"> 5708</span> </div> -<div class="line"><a name="l05709"></a><span class="lineno"> 5709</span>  <span class="comment">// Read the RLE data by channel.</span></div> -<div class="line"><a name="l05710"></a><span class="lineno"> 5710</span>  <span class="keywordflow">for</span> (channel = 0; channel < 4; channel++) {</div> -<div class="line"><a name="l05711"></a><span class="lineno"> 5711</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p;</div> -<div class="line"><a name="l05712"></a><span class="lineno"> 5712</span> </div> -<div class="line"><a name="l05713"></a><span class="lineno"> 5713</span>  p = out+channel;</div> -<div class="line"><a name="l05714"></a><span class="lineno"> 5714</span>  <span class="keywordflow">if</span> (channel >= channelCount) {</div> -<div class="line"><a name="l05715"></a><span class="lineno"> 5715</span>  <span class="comment">// Fill this channel with default data.</span></div> -<div class="line"><a name="l05716"></a><span class="lineno"> 5716</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> -<div class="line"><a name="l05717"></a><span class="lineno"> 5717</span>  *p = (channel == 3 ? 255 : 0);</div> -<div class="line"><a name="l05718"></a><span class="lineno"> 5718</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05719"></a><span class="lineno"> 5719</span>  <span class="comment">// Read the RLE data.</span></div> -<div class="line"><a name="l05720"></a><span class="lineno"> 5720</span>  <span class="keywordflow">if</span> (!stbi__psd_decode_rle(s, p, pixelCount)) {</div> -<div class="line"><a name="l05721"></a><span class="lineno"> 5721</span>  STBI_FREE(out);</div> -<div class="line"><a name="l05722"></a><span class="lineno"> 5722</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"corrupt"</span>, <span class="stringliteral">"bad RLE data"</span>);</div> -<div class="line"><a name="l05723"></a><span class="lineno"> 5723</span>  }</div> -<div class="line"><a name="l05724"></a><span class="lineno"> 5724</span>  }</div> -<div class="line"><a name="l05725"></a><span class="lineno"> 5725</span>  }</div> -<div class="line"><a name="l05726"></a><span class="lineno"> 5726</span> </div> -<div class="line"><a name="l05727"></a><span class="lineno"> 5727</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05728"></a><span class="lineno"> 5728</span>  <span class="comment">// We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...)</span></div> -<div class="line"><a name="l05729"></a><span class="lineno"> 5729</span>  <span class="comment">// where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image.</span></div> -<div class="line"><a name="l05730"></a><span class="lineno"> 5730</span> </div> -<div class="line"><a name="l05731"></a><span class="lineno"> 5731</span>  <span class="comment">// Read the data by channel.</span></div> -<div class="line"><a name="l05732"></a><span class="lineno"> 5732</span>  <span class="keywordflow">for</span> (channel = 0; channel < 4; channel++) {</div> -<div class="line"><a name="l05733"></a><span class="lineno"> 5733</span>  <span class="keywordflow">if</span> (channel >= channelCount) {</div> -<div class="line"><a name="l05734"></a><span class="lineno"> 5734</span>  <span class="comment">// Fill this channel with default data.</span></div> -<div class="line"><a name="l05735"></a><span class="lineno"> 5735</span>  <span class="keywordflow">if</span> (bitdepth == 16 && bpc == 16) {</div> -<div class="line"><a name="l05736"></a><span class="lineno"> 5736</span>  stbi__uint16 *q = ((stbi__uint16 *) out) + channel;</div> -<div class="line"><a name="l05737"></a><span class="lineno"> 5737</span>  stbi__uint16 val = channel == 3 ? 65535 : 0;</div> -<div class="line"><a name="l05738"></a><span class="lineno"> 5738</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, q += 4)</div> -<div class="line"><a name="l05739"></a><span class="lineno"> 5739</span>  *q = val;</div> -<div class="line"><a name="l05740"></a><span class="lineno"> 5740</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05741"></a><span class="lineno"> 5741</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = out+channel;</div> -<div class="line"><a name="l05742"></a><span class="lineno"> 5742</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> val = channel == 3 ? 255 : 0;</div> -<div class="line"><a name="l05743"></a><span class="lineno"> 5743</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> -<div class="line"><a name="l05744"></a><span class="lineno"> 5744</span>  *p = val;</div> -<div class="line"><a name="l05745"></a><span class="lineno"> 5745</span>  }</div> -<div class="line"><a name="l05746"></a><span class="lineno"> 5746</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05747"></a><span class="lineno"> 5747</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 16) { <span class="comment">// output bpc</span></div> -<div class="line"><a name="l05748"></a><span class="lineno"> 5748</span>  stbi__uint16 *q = ((stbi__uint16 *) out) + channel;</div> -<div class="line"><a name="l05749"></a><span class="lineno"> 5749</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, q += 4)</div> -<div class="line"><a name="l05750"></a><span class="lineno"> 5750</span>  *q = (stbi__uint16) stbi__get16be(s);</div> -<div class="line"><a name="l05751"></a><span class="lineno"> 5751</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05752"></a><span class="lineno"> 5752</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = out+channel;</div> -<div class="line"><a name="l05753"></a><span class="lineno"> 5753</span>  <span class="keywordflow">if</span> (bitdepth == 16) { <span class="comment">// input bpc</span></div> -<div class="line"><a name="l05754"></a><span class="lineno"> 5754</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> -<div class="line"><a name="l05755"></a><span class="lineno"> 5755</span>  *p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) (stbi__get16be(s) >> 8);</div> -<div class="line"><a name="l05756"></a><span class="lineno"> 5756</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05757"></a><span class="lineno"> 5757</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> -<div class="line"><a name="l05758"></a><span class="lineno"> 5758</span>  *p = stbi__get8(s);</div> -<div class="line"><a name="l05759"></a><span class="lineno"> 5759</span>  }</div> -<div class="line"><a name="l05760"></a><span class="lineno"> 5760</span>  }</div> -<div class="line"><a name="l05761"></a><span class="lineno"> 5761</span>  }</div> -<div class="line"><a name="l05762"></a><span class="lineno"> 5762</span>  }</div> -<div class="line"><a name="l05763"></a><span class="lineno"> 5763</span>  }</div> -<div class="line"><a name="l05764"></a><span class="lineno"> 5764</span> </div> -<div class="line"><a name="l05765"></a><span class="lineno"> 5765</span>  <span class="comment">// remove weird white matte from PSD</span></div> -<div class="line"><a name="l05766"></a><span class="lineno"> 5766</span>  <span class="keywordflow">if</span> (channelCount >= 4) {</div> -<div class="line"><a name="l05767"></a><span class="lineno"> 5767</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 16) {</div> -<div class="line"><a name="l05768"></a><span class="lineno"> 5768</span>  <span class="keywordflow">for</span> (i=0; i < w*h; ++i) {</div> -<div class="line"><a name="l05769"></a><span class="lineno"> 5769</span>  stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i;</div> -<div class="line"><a name="l05770"></a><span class="lineno"> 5770</span>  <span class="keywordflow">if</span> (pixel[3] != 0 && pixel[3] != 65535) {</div> -<div class="line"><a name="l05771"></a><span class="lineno"> 5771</span>  <span class="keywordtype">float</span> a = pixel[3] / 65535.0f;</div> -<div class="line"><a name="l05772"></a><span class="lineno"> 5772</span>  <span class="keywordtype">float</span> ra = 1.0f / a;</div> -<div class="line"><a name="l05773"></a><span class="lineno"> 5773</span>  <span class="keywordtype">float</span> inv_a = 65535.0f * (1 - ra);</div> -<div class="line"><a name="l05774"></a><span class="lineno"> 5774</span>  pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a);</div> -<div class="line"><a name="l05775"></a><span class="lineno"> 5775</span>  pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a);</div> -<div class="line"><a name="l05776"></a><span class="lineno"> 5776</span>  pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a);</div> -<div class="line"><a name="l05777"></a><span class="lineno"> 5777</span>  }</div> -<div class="line"><a name="l05778"></a><span class="lineno"> 5778</span>  }</div> -<div class="line"><a name="l05779"></a><span class="lineno"> 5779</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l05780"></a><span class="lineno"> 5780</span>  <span class="keywordflow">for</span> (i=0; i < w*h; ++i) {</div> -<div class="line"><a name="l05781"></a><span class="lineno"> 5781</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pixel = out + 4*i;</div> -<div class="line"><a name="l05782"></a><span class="lineno"> 5782</span>  <span class="keywordflow">if</span> (pixel[3] != 0 && pixel[3] != 255) {</div> -<div class="line"><a name="l05783"></a><span class="lineno"> 5783</span>  <span class="keywordtype">float</span> a = pixel[3] / 255.0f;</div> -<div class="line"><a name="l05784"></a><span class="lineno"> 5784</span>  <span class="keywordtype">float</span> ra = 1.0f / a;</div> -<div class="line"><a name="l05785"></a><span class="lineno"> 5785</span>  <span class="keywordtype">float</span> inv_a = 255.0f * (1 - ra);</div> -<div class="line"><a name="l05786"></a><span class="lineno"> 5786</span>  pixel[0] = (<span class="keywordtype">unsigned</span> char) (pixel[0]*ra + inv_a);</div> -<div class="line"><a name="l05787"></a><span class="lineno"> 5787</span>  pixel[1] = (<span class="keywordtype">unsigned</span> char) (pixel[1]*ra + inv_a);</div> -<div class="line"><a name="l05788"></a><span class="lineno"> 5788</span>  pixel[2] = (<span class="keywordtype">unsigned</span> char) (pixel[2]*ra + inv_a);</div> -<div class="line"><a name="l05789"></a><span class="lineno"> 5789</span>  }</div> -<div class="line"><a name="l05790"></a><span class="lineno"> 5790</span>  }</div> -<div class="line"><a name="l05791"></a><span class="lineno"> 5791</span>  }</div> -<div class="line"><a name="l05792"></a><span class="lineno"> 5792</span>  }</div> -<div class="line"><a name="l05793"></a><span class="lineno"> 5793</span> </div> -<div class="line"><a name="l05794"></a><span class="lineno"> 5794</span>  <span class="comment">// convert to desired output format</span></div> -<div class="line"><a name="l05795"></a><span class="lineno"> 5795</span>  <span class="keywordflow">if</span> (req_comp && req_comp != 4) {</div> -<div class="line"><a name="l05796"></a><span class="lineno"> 5796</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 16)</div> -<div class="line"><a name="l05797"></a><span class="lineno"> 5797</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h);</div> -<div class="line"><a name="l05798"></a><span class="lineno"> 5798</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l05799"></a><span class="lineno"> 5799</span>  out = stbi__convert_format(out, 4, req_comp, w, h);</div> -<div class="line"><a name="l05800"></a><span class="lineno"> 5800</span>  <span class="keywordflow">if</span> (out == NULL) <span class="keywordflow">return</span> out; <span class="comment">// stbi__convert_format frees input on failure</span></div> -<div class="line"><a name="l05801"></a><span class="lineno"> 5801</span>  }</div> -<div class="line"><a name="l05802"></a><span class="lineno"> 5802</span> </div> -<div class="line"><a name="l05803"></a><span class="lineno"> 5803</span>  <span class="keywordflow">if</span> (comp) *comp = 4;</div> -<div class="line"><a name="l05804"></a><span class="lineno"> 5804</span>  *y = h;</div> -<div class="line"><a name="l05805"></a><span class="lineno"> 5805</span>  *x = w;</div> -<div class="line"><a name="l05806"></a><span class="lineno"> 5806</span> </div> -<div class="line"><a name="l05807"></a><span class="lineno"> 5807</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l05808"></a><span class="lineno"> 5808</span> }</div> -<div class="line"><a name="l05809"></a><span class="lineno"> 5809</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l05810"></a><span class="lineno"> 5810</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l05811"></a><span class="lineno"> 5811</span> <span class="comment">// *************************************************************************************************</span></div> -<div class="line"><a name="l05812"></a><span class="lineno"> 5812</span> <span class="comment">// Softimage PIC loader</span></div> -<div class="line"><a name="l05813"></a><span class="lineno"> 5813</span> <span class="comment">// by Tom Seddon</span></div> -<div class="line"><a name="l05814"></a><span class="lineno"> 5814</span> <span class="comment">//</span></div> -<div class="line"><a name="l05815"></a><span class="lineno"> 5815</span> <span class="comment">// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format</span></div> -<div class="line"><a name="l05816"></a><span class="lineno"> 5816</span> <span class="comment">// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/</span></div> -<div class="line"><a name="l05817"></a><span class="lineno"> 5817</span> </div> -<div class="line"><a name="l05818"></a><span class="lineno"> 5818</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> -<div class="line"><a name="l05819"></a><span class="lineno"> 5819</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_is4(stbi__context *s,<span class="keyword">const</span> <span class="keywordtype">char</span> *str)</div> -<div class="line"><a name="l05820"></a><span class="lineno"> 5820</span> {</div> -<div class="line"><a name="l05821"></a><span class="lineno"> 5821</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l05822"></a><span class="lineno"> 5822</span>  <span class="keywordflow">for</span> (i=0; i<4; ++i)</div> -<div class="line"><a name="l05823"></a><span class="lineno"> 5823</span>  <span class="keywordflow">if</span> (stbi__get8(s) != (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)str[i])</div> -<div class="line"><a name="l05824"></a><span class="lineno"> 5824</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05825"></a><span class="lineno"> 5825</span> </div> -<div class="line"><a name="l05826"></a><span class="lineno"> 5826</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l05827"></a><span class="lineno"> 5827</span> }</div> -<div class="line"><a name="l05828"></a><span class="lineno"> 5828</span> </div> -<div class="line"><a name="l05829"></a><span class="lineno"> 5829</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_test_core(stbi__context *s)</div> -<div class="line"><a name="l05830"></a><span class="lineno"> 5830</span> {</div> -<div class="line"><a name="l05831"></a><span class="lineno"> 5831</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l05832"></a><span class="lineno"> 5832</span> </div> -<div class="line"><a name="l05833"></a><span class="lineno"> 5833</span>  <span class="keywordflow">if</span> (!stbi__pic_is4(s,<span class="stringliteral">"\x53\x80\xF6\x34"</span>))</div> -<div class="line"><a name="l05834"></a><span class="lineno"> 5834</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05835"></a><span class="lineno"> 5835</span> </div> -<div class="line"><a name="l05836"></a><span class="lineno"> 5836</span>  <span class="keywordflow">for</span>(i=0;i<84;++i)</div> -<div class="line"><a name="l05837"></a><span class="lineno"> 5837</span>  stbi__get8(s);</div> -<div class="line"><a name="l05838"></a><span class="lineno"> 5838</span> </div> -<div class="line"><a name="l05839"></a><span class="lineno"> 5839</span>  <span class="keywordflow">if</span> (!stbi__pic_is4(s,<span class="stringliteral">"PICT"</span>))</div> -<div class="line"><a name="l05840"></a><span class="lineno"> 5840</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05841"></a><span class="lineno"> 5841</span> </div> -<div class="line"><a name="l05842"></a><span class="lineno"> 5842</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l05843"></a><span class="lineno"> 5843</span> }</div> -<div class="line"><a name="l05844"></a><span class="lineno"> 5844</span> </div> -<div class="line"><a name="l05845"></a><span class="lineno"> 5845</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l05846"></a><span class="lineno"> 5846</span> {</div> -<div class="line"><a name="l05847"></a><span class="lineno"> 5847</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> size,type,channel;</div> -<div class="line"><a name="l05848"></a><span class="lineno"> 5848</span> } stbi__pic_packet;</div> -<div class="line"><a name="l05849"></a><span class="lineno"> 5849</span> </div> -<div class="line"><a name="l05850"></a><span class="lineno"> 5850</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__readval(stbi__context *s, <span class="keywordtype">int</span> channel, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *dest)</div> -<div class="line"><a name="l05851"></a><span class="lineno"> 5851</span> {</div> -<div class="line"><a name="l05852"></a><span class="lineno"> 5852</span>  <span class="keywordtype">int</span> mask=0x80, i;</div> -<div class="line"><a name="l05853"></a><span class="lineno"> 5853</span> </div> -<div class="line"><a name="l05854"></a><span class="lineno"> 5854</span>  <span class="keywordflow">for</span> (i=0; i<4; ++i, mask>>=1) {</div> -<div class="line"><a name="l05855"></a><span class="lineno"> 5855</span>  <span class="keywordflow">if</span> (channel & mask) {</div> -<div class="line"><a name="l05856"></a><span class="lineno"> 5856</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"PIC file too short"</span>);</div> -<div class="line"><a name="l05857"></a><span class="lineno"> 5857</span>  dest[i]=stbi__get8(s);</div> -<div class="line"><a name="l05858"></a><span class="lineno"> 5858</span>  }</div> -<div class="line"><a name="l05859"></a><span class="lineno"> 5859</span>  }</div> -<div class="line"><a name="l05860"></a><span class="lineno"> 5860</span> </div> -<div class="line"><a name="l05861"></a><span class="lineno"> 5861</span>  <span class="keywordflow">return</span> dest;</div> -<div class="line"><a name="l05862"></a><span class="lineno"> 5862</span> }</div> -<div class="line"><a name="l05863"></a><span class="lineno"> 5863</span> </div> -<div class="line"><a name="l05864"></a><span class="lineno"> 5864</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__copyval(<span class="keywordtype">int</span> channel,<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *dest,<span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *src)</div> -<div class="line"><a name="l05865"></a><span class="lineno"> 5865</span> {</div> -<div class="line"><a name="l05866"></a><span class="lineno"> 5866</span>  <span class="keywordtype">int</span> mask=0x80,i;</div> -<div class="line"><a name="l05867"></a><span class="lineno"> 5867</span> </div> -<div class="line"><a name="l05868"></a><span class="lineno"> 5868</span>  <span class="keywordflow">for</span> (i=0;i<4; ++i, mask>>=1)</div> -<div class="line"><a name="l05869"></a><span class="lineno"> 5869</span>  <span class="keywordflow">if</span> (channel&mask)</div> -<div class="line"><a name="l05870"></a><span class="lineno"> 5870</span>  dest[i]=src[i];</div> -<div class="line"><a name="l05871"></a><span class="lineno"> 5871</span> }</div> -<div class="line"><a name="l05872"></a><span class="lineno"> 5872</span> </div> -<div class="line"><a name="l05873"></a><span class="lineno"> 5873</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__pic_load_core(stbi__context *s,<span class="keywordtype">int</span> width,<span class="keywordtype">int</span> height,<span class="keywordtype">int</span> *comp, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *result)</div> -<div class="line"><a name="l05874"></a><span class="lineno"> 5874</span> {</div> -<div class="line"><a name="l05875"></a><span class="lineno"> 5875</span>  <span class="keywordtype">int</span> act_comp=0,num_packets=0,y,chained;</div> -<div class="line"><a name="l05876"></a><span class="lineno"> 5876</span>  stbi__pic_packet packets[10];</div> -<div class="line"><a name="l05877"></a><span class="lineno"> 5877</span> </div> -<div class="line"><a name="l05878"></a><span class="lineno"> 5878</span>  <span class="comment">// this will (should...) cater for even some bizarre stuff like having data</span></div> -<div class="line"><a name="l05879"></a><span class="lineno"> 5879</span>  <span class="comment">// for the same channel in multiple packets.</span></div> -<div class="line"><a name="l05880"></a><span class="lineno"> 5880</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l05881"></a><span class="lineno"> 5881</span>  stbi__pic_packet *packet;</div> -<div class="line"><a name="l05882"></a><span class="lineno"> 5882</span> </div> -<div class="line"><a name="l05883"></a><span class="lineno"> 5883</span>  <span class="keywordflow">if</span> (num_packets==<span class="keyword">sizeof</span>(packets)/<span class="keyword">sizeof</span>(packets[0]))</div> -<div class="line"><a name="l05884"></a><span class="lineno"> 5884</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>,<span class="stringliteral">"too many packets"</span>);</div> -<div class="line"><a name="l05885"></a><span class="lineno"> 5885</span> </div> -<div class="line"><a name="l05886"></a><span class="lineno"> 5886</span>  packet = &packets[num_packets++];</div> +<div class="line"><a name="l05709"></a><span class="lineno"> 5709</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__png_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l05710"></a><span class="lineno"> 5710</span> {</div> +<div class="line"><a name="l05711"></a><span class="lineno"> 5711</span>  stbi__png p;</div> +<div class="line"><a name="l05712"></a><span class="lineno"> 5712</span>  p.s = s;</div> +<div class="line"><a name="l05713"></a><span class="lineno"> 5713</span>  <span class="keywordflow">return</span> stbi__png_info_raw(&p, x, y, comp);</div> +<div class="line"><a name="l05714"></a><span class="lineno"> 5714</span> }</div> +<div class="line"><a name="l05715"></a><span class="lineno"> 5715</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l05716"></a><span class="lineno"> 5716</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l05717"></a><span class="lineno"> 5717</span>  <span class="comment">// Microsoft/Windows BMP image</span></div> +<div class="line"><a name="l05718"></a><span class="lineno"> 5718</span> </div> +<div class="line"><a name="l05719"></a><span class="lineno"> 5719</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> +<div class="line"><a name="l05720"></a><span class="lineno"> 5720</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_test_raw(stbi__context *s)</div> +<div class="line"><a name="l05721"></a><span class="lineno"> 5721</span> {</div> +<div class="line"><a name="l05722"></a><span class="lineno"> 5722</span>  <span class="keywordtype">int</span> r;</div> +<div class="line"><a name="l05723"></a><span class="lineno"> 5723</span>  <span class="keywordtype">int</span> sz;</div> +<div class="line"><a name="l05724"></a><span class="lineno"> 5724</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'B'</span>)</div> +<div class="line"><a name="l05725"></a><span class="lineno"> 5725</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05726"></a><span class="lineno"> 5726</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'M'</span>)</div> +<div class="line"><a name="l05727"></a><span class="lineno"> 5727</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l05728"></a><span class="lineno"> 5728</span>  stbi__get32le(s); <span class="comment">// discard filesize</span></div> +<div class="line"><a name="l05729"></a><span class="lineno"> 5729</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> +<div class="line"><a name="l05730"></a><span class="lineno"> 5730</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> +<div class="line"><a name="l05731"></a><span class="lineno"> 5731</span>  stbi__get32le(s); <span class="comment">// discard data offset</span></div> +<div class="line"><a name="l05732"></a><span class="lineno"> 5732</span>  sz = stbi__get32le(s);</div> +<div class="line"><a name="l05733"></a><span class="lineno"> 5733</span>  r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124);</div> +<div class="line"><a name="l05734"></a><span class="lineno"> 5734</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l05735"></a><span class="lineno"> 5735</span> }</div> +<div class="line"><a name="l05736"></a><span class="lineno"> 5736</span> </div> +<div class="line"><a name="l05737"></a><span class="lineno"> 5737</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_test(stbi__context *s)</div> +<div class="line"><a name="l05738"></a><span class="lineno"> 5738</span> {</div> +<div class="line"><a name="l05739"></a><span class="lineno"> 5739</span>  <span class="keywordtype">int</span> r = stbi__bmp_test_raw(s);</div> +<div class="line"><a name="l05740"></a><span class="lineno"> 5740</span>  stbi__rewind(s);</div> +<div class="line"><a name="l05741"></a><span class="lineno"> 5741</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l05742"></a><span class="lineno"> 5742</span> }</div> +<div class="line"><a name="l05743"></a><span class="lineno"> 5743</span> </div> +<div class="line"><a name="l05744"></a><span class="lineno"> 5744</span> <span class="comment">// returns 0..31 for the highest set bit</span></div> +<div class="line"><a name="l05745"></a><span class="lineno"> 5745</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__high_bit(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> z)</div> +<div class="line"><a name="l05746"></a><span class="lineno"> 5746</span> {</div> +<div class="line"><a name="l05747"></a><span class="lineno"> 5747</span>  <span class="keywordtype">int</span> n = 0;</div> +<div class="line"><a name="l05748"></a><span class="lineno"> 5748</span>  <span class="keywordflow">if</span> (z == 0)</div> +<div class="line"><a name="l05749"></a><span class="lineno"> 5749</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l05750"></a><span class="lineno"> 5750</span>  <span class="keywordflow">if</span> (z >= 0x10000)</div> +<div class="line"><a name="l05751"></a><span class="lineno"> 5751</span>  n += 16, z >>= 16;</div> +<div class="line"><a name="l05752"></a><span class="lineno"> 5752</span>  <span class="keywordflow">if</span> (z >= 0x00100)</div> +<div class="line"><a name="l05753"></a><span class="lineno"> 5753</span>  n += 8, z >>= 8;</div> +<div class="line"><a name="l05754"></a><span class="lineno"> 5754</span>  <span class="keywordflow">if</span> (z >= 0x00010)</div> +<div class="line"><a name="l05755"></a><span class="lineno"> 5755</span>  n += 4, z >>= 4;</div> +<div class="line"><a name="l05756"></a><span class="lineno"> 5756</span>  <span class="keywordflow">if</span> (z >= 0x00004)</div> +<div class="line"><a name="l05757"></a><span class="lineno"> 5757</span>  n += 2, z >>= 2;</div> +<div class="line"><a name="l05758"></a><span class="lineno"> 5758</span>  <span class="keywordflow">if</span> (z >= 0x00002)</div> +<div class="line"><a name="l05759"></a><span class="lineno"> 5759</span>  n += 1, z >>= 1;</div> +<div class="line"><a name="l05760"></a><span class="lineno"> 5760</span>  <span class="keywordflow">return</span> n;</div> +<div class="line"><a name="l05761"></a><span class="lineno"> 5761</span> }</div> +<div class="line"><a name="l05762"></a><span class="lineno"> 5762</span> </div> +<div class="line"><a name="l05763"></a><span class="lineno"> 5763</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bitcount(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> a)</div> +<div class="line"><a name="l05764"></a><span class="lineno"> 5764</span> {</div> +<div class="line"><a name="l05765"></a><span class="lineno"> 5765</span>  a = (a & 0x55555555) + ((a >> 1) & 0x55555555); <span class="comment">// max 2</span></div> +<div class="line"><a name="l05766"></a><span class="lineno"> 5766</span>  a = (a & 0x33333333) + ((a >> 2) & 0x33333333); <span class="comment">// max 4</span></div> +<div class="line"><a name="l05767"></a><span class="lineno"> 5767</span>  a = (a + (a >> 4)) & 0x0f0f0f0f; <span class="comment">// max 8 per 4, now 8 bits</span></div> +<div class="line"><a name="l05768"></a><span class="lineno"> 5768</span>  a = (a + (a >> 8)); <span class="comment">// max 16 per 8 bits</span></div> +<div class="line"><a name="l05769"></a><span class="lineno"> 5769</span>  a = (a + (a >> 16)); <span class="comment">// max 32 per 8 bits</span></div> +<div class="line"><a name="l05770"></a><span class="lineno"> 5770</span>  <span class="keywordflow">return</span> a & 0xff;</div> +<div class="line"><a name="l05771"></a><span class="lineno"> 5771</span> }</div> +<div class="line"><a name="l05772"></a><span class="lineno"> 5772</span> </div> +<div class="line"><a name="l05773"></a><span class="lineno"> 5773</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__shiftsigned(<span class="keywordtype">int</span> v, <span class="keywordtype">int</span> shift, <span class="keywordtype">int</span> bits)</div> +<div class="line"><a name="l05774"></a><span class="lineno"> 5774</span> {</div> +<div class="line"><a name="l05775"></a><span class="lineno"> 5775</span>  <span class="keywordtype">int</span> result;</div> +<div class="line"><a name="l05776"></a><span class="lineno"> 5776</span>  <span class="keywordtype">int</span> z = 0;</div> +<div class="line"><a name="l05777"></a><span class="lineno"> 5777</span> </div> +<div class="line"><a name="l05778"></a><span class="lineno"> 5778</span>  <span class="keywordflow">if</span> (shift < 0)</div> +<div class="line"><a name="l05779"></a><span class="lineno"> 5779</span>  v <<= -shift;</div> +<div class="line"><a name="l05780"></a><span class="lineno"> 5780</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l05781"></a><span class="lineno"> 5781</span>  v >>= shift;</div> +<div class="line"><a name="l05782"></a><span class="lineno"> 5782</span>  result = v;</div> +<div class="line"><a name="l05783"></a><span class="lineno"> 5783</span> </div> +<div class="line"><a name="l05784"></a><span class="lineno"> 5784</span>  z = bits;</div> +<div class="line"><a name="l05785"></a><span class="lineno"> 5785</span>  <span class="keywordflow">while</span> (z < 8) {</div> +<div class="line"><a name="l05786"></a><span class="lineno"> 5786</span>  result += v >> z;</div> +<div class="line"><a name="l05787"></a><span class="lineno"> 5787</span>  z += bits;</div> +<div class="line"><a name="l05788"></a><span class="lineno"> 5788</span>  }</div> +<div class="line"><a name="l05789"></a><span class="lineno"> 5789</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l05790"></a><span class="lineno"> 5790</span> }</div> +<div class="line"><a name="l05791"></a><span class="lineno"> 5791</span> </div> +<div class="line"><a name="l05792"></a><span class="lineno"> 5792</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l05793"></a><span class="lineno"> 5793</span>  <span class="keywordtype">int</span> bpp, offset, hsz;</div> +<div class="line"><a name="l05794"></a><span class="lineno"> 5794</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mr, mg, mb, ma, all_a;</div> +<div class="line"><a name="l05795"></a><span class="lineno"> 5795</span> } stbi__bmp_data;</div> +<div class="line"><a name="l05796"></a><span class="lineno"> 5796</span> </div> +<div class="line"><a name="l05797"></a><span class="lineno"> 5797</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info)</div> +<div class="line"><a name="l05798"></a><span class="lineno"> 5798</span> {</div> +<div class="line"><a name="l05799"></a><span class="lineno"> 5799</span>  <span class="keywordtype">int</span> hsz;</div> +<div class="line"><a name="l05800"></a><span class="lineno"> 5800</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'B'</span> || stbi__get8(s) != <span class="charliteral">'M'</span>)</div> +<div class="line"><a name="l05801"></a><span class="lineno"> 5801</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"not BMP"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> +<div class="line"><a name="l05802"></a><span class="lineno"> 5802</span>  stbi__get32le(s); <span class="comment">// discard filesize</span></div> +<div class="line"><a name="l05803"></a><span class="lineno"> 5803</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> +<div class="line"><a name="l05804"></a><span class="lineno"> 5804</span>  stbi__get16le(s); <span class="comment">// discard reserved</span></div> +<div class="line"><a name="l05805"></a><span class="lineno"> 5805</span>  info->offset = stbi__get32le(s);</div> +<div class="line"><a name="l05806"></a><span class="lineno"> 5806</span>  info->hsz = hsz = stbi__get32le(s);</div> +<div class="line"><a name="l05807"></a><span class="lineno"> 5807</span>  info->mr = info->mg = info->mb = info->ma = 0;</div> +<div class="line"><a name="l05808"></a><span class="lineno"> 5808</span> </div> +<div class="line"><a name="l05809"></a><span class="lineno"> 5809</span>  <span class="keywordflow">if</span> (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124)</div> +<div class="line"><a name="l05810"></a><span class="lineno"> 5810</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unknown BMP"</span>, <span class="stringliteral">"BMP type not supported: unknown"</span>);</div> +<div class="line"><a name="l05811"></a><span class="lineno"> 5811</span>  <span class="keywordflow">if</span> (hsz == 12) {</div> +<div class="line"><a name="l05812"></a><span class="lineno"> 5812</span>  s->img_x = stbi__get16le(s);</div> +<div class="line"><a name="l05813"></a><span class="lineno"> 5813</span>  s->img_y = stbi__get16le(s);</div> +<div class="line"><a name="l05814"></a><span class="lineno"> 5814</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05815"></a><span class="lineno"> 5815</span>  s->img_x = stbi__get32le(s);</div> +<div class="line"><a name="l05816"></a><span class="lineno"> 5816</span>  s->img_y = stbi__get32le(s);</div> +<div class="line"><a name="l05817"></a><span class="lineno"> 5817</span>  }</div> +<div class="line"><a name="l05818"></a><span class="lineno"> 5818</span>  <span class="keywordflow">if</span> (stbi__get16le(s) != 1)</div> +<div class="line"><a name="l05819"></a><span class="lineno"> 5819</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> +<div class="line"><a name="l05820"></a><span class="lineno"> 5820</span>  info->bpp = stbi__get16le(s);</div> +<div class="line"><a name="l05821"></a><span class="lineno"> 5821</span>  <span class="keywordflow">if</span> (info->bpp == 1)</div> +<div class="line"><a name="l05822"></a><span class="lineno"> 5822</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"monochrome"</span>, <span class="stringliteral">"BMP type not supported: 1-bit"</span>);</div> +<div class="line"><a name="l05823"></a><span class="lineno"> 5823</span>  <span class="keywordflow">if</span> (hsz != 12) {</div> +<div class="line"><a name="l05824"></a><span class="lineno"> 5824</span>  <span class="keywordtype">int</span> compress = stbi__get32le(s);</div> +<div class="line"><a name="l05825"></a><span class="lineno"> 5825</span>  <span class="keywordflow">if</span> (compress == 1 || compress == 2)</div> +<div class="line"><a name="l05826"></a><span class="lineno"> 5826</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"BMP RLE"</span>, <span class="stringliteral">"BMP type not supported: RLE"</span>);</div> +<div class="line"><a name="l05827"></a><span class="lineno"> 5827</span>  stbi__get32le(s); <span class="comment">// discard sizeof</span></div> +<div class="line"><a name="l05828"></a><span class="lineno"> 5828</span>  stbi__get32le(s); <span class="comment">// discard hres</span></div> +<div class="line"><a name="l05829"></a><span class="lineno"> 5829</span>  stbi__get32le(s); <span class="comment">// discard vres</span></div> +<div class="line"><a name="l05830"></a><span class="lineno"> 5830</span>  stbi__get32le(s); <span class="comment">// discard colorsused</span></div> +<div class="line"><a name="l05831"></a><span class="lineno"> 5831</span>  stbi__get32le(s); <span class="comment">// discard max important</span></div> +<div class="line"><a name="l05832"></a><span class="lineno"> 5832</span>  <span class="keywordflow">if</span> (hsz == 40 || hsz == 56) {</div> +<div class="line"><a name="l05833"></a><span class="lineno"> 5833</span>  <span class="keywordflow">if</span> (hsz == 56) {</div> +<div class="line"><a name="l05834"></a><span class="lineno"> 5834</span>  stbi__get32le(s);</div> +<div class="line"><a name="l05835"></a><span class="lineno"> 5835</span>  stbi__get32le(s);</div> +<div class="line"><a name="l05836"></a><span class="lineno"> 5836</span>  stbi__get32le(s);</div> +<div class="line"><a name="l05837"></a><span class="lineno"> 5837</span>  stbi__get32le(s);</div> +<div class="line"><a name="l05838"></a><span class="lineno"> 5838</span>  }</div> +<div class="line"><a name="l05839"></a><span class="lineno"> 5839</span>  <span class="keywordflow">if</span> (info->bpp == 16 || info->bpp == 32) {</div> +<div class="line"><a name="l05840"></a><span class="lineno"> 5840</span>  <span class="keywordflow">if</span> (compress == 0) {</div> +<div class="line"><a name="l05841"></a><span class="lineno"> 5841</span>  <span class="keywordflow">if</span> (info->bpp == 32) {</div> +<div class="line"><a name="l05842"></a><span class="lineno"> 5842</span>  info->mr = 0xffu << 16;</div> +<div class="line"><a name="l05843"></a><span class="lineno"> 5843</span>  info->mg = 0xffu << 8;</div> +<div class="line"><a name="l05844"></a><span class="lineno"> 5844</span>  info->mb = 0xffu << 0;</div> +<div class="line"><a name="l05845"></a><span class="lineno"> 5845</span>  info->ma = 0xffu << 24;</div> +<div class="line"><a name="l05846"></a><span class="lineno"> 5846</span>  info->all_a = 0; <span class="comment">// if all_a is 0 at end, then we loaded</span></div> +<div class="line"><a name="l05847"></a><span class="lineno"> 5847</span>  <span class="comment">// alpha channel but it was all 0</span></div> +<div class="line"><a name="l05848"></a><span class="lineno"> 5848</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05849"></a><span class="lineno"> 5849</span>  info->mr = 31u << 10;</div> +<div class="line"><a name="l05850"></a><span class="lineno"> 5850</span>  info->mg = 31u << 5;</div> +<div class="line"><a name="l05851"></a><span class="lineno"> 5851</span>  info->mb = 31u << 0;</div> +<div class="line"><a name="l05852"></a><span class="lineno"> 5852</span>  }</div> +<div class="line"><a name="l05853"></a><span class="lineno"> 5853</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (compress == 3) {</div> +<div class="line"><a name="l05854"></a><span class="lineno"> 5854</span>  info->mr = stbi__get32le(s);</div> +<div class="line"><a name="l05855"></a><span class="lineno"> 5855</span>  info->mg = stbi__get32le(s);</div> +<div class="line"><a name="l05856"></a><span class="lineno"> 5856</span>  info->mb = stbi__get32le(s);</div> +<div class="line"><a name="l05857"></a><span class="lineno"> 5857</span>  <span class="comment">// not documented, but generated by photoshop and handled by</span></div> +<div class="line"><a name="l05858"></a><span class="lineno"> 5858</span>  <span class="comment">// mspaint</span></div> +<div class="line"><a name="l05859"></a><span class="lineno"> 5859</span>  <span class="keywordflow">if</span> (info->mr == info->mg && info->mg == info->mb) {</div> +<div class="line"><a name="l05860"></a><span class="lineno"> 5860</span>  <span class="comment">// ?!?!?</span></div> +<div class="line"><a name="l05861"></a><span class="lineno"> 5861</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> +<div class="line"><a name="l05862"></a><span class="lineno"> 5862</span>  }</div> +<div class="line"><a name="l05863"></a><span class="lineno"> 5863</span>  } <span class="keywordflow">else</span></div> +<div class="line"><a name="l05864"></a><span class="lineno"> 5864</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> +<div class="line"><a name="l05865"></a><span class="lineno"> 5865</span>  }</div> +<div class="line"><a name="l05866"></a><span class="lineno"> 5866</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05867"></a><span class="lineno"> 5867</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l05868"></a><span class="lineno"> 5868</span>  <span class="keywordflow">if</span> (hsz != 108 && hsz != 124)</div> +<div class="line"><a name="l05869"></a><span class="lineno"> 5869</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad BMP"</span>, <span class="stringliteral">"bad BMP"</span>);</div> +<div class="line"><a name="l05870"></a><span class="lineno"> 5870</span>  info->mr = stbi__get32le(s);</div> +<div class="line"><a name="l05871"></a><span class="lineno"> 5871</span>  info->mg = stbi__get32le(s);</div> +<div class="line"><a name="l05872"></a><span class="lineno"> 5872</span>  info->mb = stbi__get32le(s);</div> +<div class="line"><a name="l05873"></a><span class="lineno"> 5873</span>  info->ma = stbi__get32le(s);</div> +<div class="line"><a name="l05874"></a><span class="lineno"> 5874</span>  stbi__get32le(s); <span class="comment">// discard color space</span></div> +<div class="line"><a name="l05875"></a><span class="lineno"> 5875</span>  <span class="keywordflow">for</span> (i = 0; i < 12; ++i)</div> +<div class="line"><a name="l05876"></a><span class="lineno"> 5876</span>  stbi__get32le(s); <span class="comment">// discard color space parameters</span></div> +<div class="line"><a name="l05877"></a><span class="lineno"> 5877</span>  <span class="keywordflow">if</span> (hsz == 124) {</div> +<div class="line"><a name="l05878"></a><span class="lineno"> 5878</span>  stbi__get32le(s); <span class="comment">// discard rendering intent</span></div> +<div class="line"><a name="l05879"></a><span class="lineno"> 5879</span>  stbi__get32le(s); <span class="comment">// discard offset of profile data</span></div> +<div class="line"><a name="l05880"></a><span class="lineno"> 5880</span>  stbi__get32le(s); <span class="comment">// discard size of profile data</span></div> +<div class="line"><a name="l05881"></a><span class="lineno"> 5881</span>  stbi__get32le(s); <span class="comment">// discard reserved</span></div> +<div class="line"><a name="l05882"></a><span class="lineno"> 5882</span>  }</div> +<div class="line"><a name="l05883"></a><span class="lineno"> 5883</span>  }</div> +<div class="line"><a name="l05884"></a><span class="lineno"> 5884</span>  }</div> +<div class="line"><a name="l05885"></a><span class="lineno"> 5885</span>  <span class="keywordflow">return</span> (<span class="keywordtype">void</span> *)1;</div> +<div class="line"><a name="l05886"></a><span class="lineno"> 5886</span> }</div> <div class="line"><a name="l05887"></a><span class="lineno"> 5887</span> </div> -<div class="line"><a name="l05888"></a><span class="lineno"> 5888</span>  chained = stbi__get8(s);</div> -<div class="line"><a name="l05889"></a><span class="lineno"> 5889</span>  packet->size = stbi__get8(s);</div> -<div class="line"><a name="l05890"></a><span class="lineno"> 5890</span>  packet->type = stbi__get8(s);</div> -<div class="line"><a name="l05891"></a><span class="lineno"> 5891</span>  packet->channel = stbi__get8(s);</div> -<div class="line"><a name="l05892"></a><span class="lineno"> 5892</span> </div> -<div class="line"><a name="l05893"></a><span class="lineno"> 5893</span>  act_comp |= packet->channel;</div> -<div class="line"><a name="l05894"></a><span class="lineno"> 5894</span> </div> -<div class="line"><a name="l05895"></a><span class="lineno"> 5895</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"file too short (reading packets)"</span>);</div> -<div class="line"><a name="l05896"></a><span class="lineno"> 5896</span>  <span class="keywordflow">if</span> (packet->size != 8) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>,<span class="stringliteral">"packet isn't 8bpp"</span>);</div> -<div class="line"><a name="l05897"></a><span class="lineno"> 5897</span>  } <span class="keywordflow">while</span> (chained);</div> +<div class="line"><a name="l05888"></a><span class="lineno"> 5888</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__bmp_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l05889"></a><span class="lineno"> 5889</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l05890"></a><span class="lineno"> 5890</span> {</div> +<div class="line"><a name="l05891"></a><span class="lineno"> 5891</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out;</div> +<div class="line"><a name="l05892"></a><span class="lineno"> 5892</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mr = 0, mg = 0, mb = 0, ma = 0, all_a;</div> +<div class="line"><a name="l05893"></a><span class="lineno"> 5893</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> pal[256][4];</div> +<div class="line"><a name="l05894"></a><span class="lineno"> 5894</span>  <span class="keywordtype">int</span> psize = 0, i, j, width;</div> +<div class="line"><a name="l05895"></a><span class="lineno"> 5895</span>  <span class="keywordtype">int</span> flip_vertically, pad, target;</div> +<div class="line"><a name="l05896"></a><span class="lineno"> 5896</span>  stbi__bmp_data info;</div> +<div class="line"><a name="l05897"></a><span class="lineno"> 5897</span>  STBI_NOTUSED(ri);</div> <div class="line"><a name="l05898"></a><span class="lineno"> 5898</span> </div> -<div class="line"><a name="l05899"></a><span class="lineno"> 5899</span>  *comp = (act_comp & 0x10 ? 4 : 3); <span class="comment">// has alpha channel?</span></div> -<div class="line"><a name="l05900"></a><span class="lineno"> 5900</span> </div> -<div class="line"><a name="l05901"></a><span class="lineno"> 5901</span>  <span class="keywordflow">for</span>(y=0; y<height; ++y) {</div> -<div class="line"><a name="l05902"></a><span class="lineno"> 5902</span>  <span class="keywordtype">int</span> packet_idx;</div> -<div class="line"><a name="l05903"></a><span class="lineno"> 5903</span> </div> -<div class="line"><a name="l05904"></a><span class="lineno"> 5904</span>  <span class="keywordflow">for</span>(packet_idx=0; packet_idx < num_packets; ++packet_idx) {</div> -<div class="line"><a name="l05905"></a><span class="lineno"> 5905</span>  stbi__pic_packet *packet = &packets[packet_idx];</div> -<div class="line"><a name="l05906"></a><span class="lineno"> 5906</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *dest = result+y*width*4;</div> -<div class="line"><a name="l05907"></a><span class="lineno"> 5907</span> </div> -<div class="line"><a name="l05908"></a><span class="lineno"> 5908</span>  <span class="keywordflow">switch</span> (packet->type) {</div> -<div class="line"><a name="l05909"></a><span class="lineno"> 5909</span>  <span class="keywordflow">default</span>:</div> -<div class="line"><a name="l05910"></a><span class="lineno"> 5910</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>,<span class="stringliteral">"packet has bad compression type"</span>);</div> +<div class="line"><a name="l05899"></a><span class="lineno"> 5899</span>  info.all_a = 255;</div> +<div class="line"><a name="l05900"></a><span class="lineno"> 5900</span>  <span class="keywordflow">if</span> (stbi__bmp_parse_header(s, &info) == NULL)</div> +<div class="line"><a name="l05901"></a><span class="lineno"> 5901</span>  <span class="keywordflow">return</span> NULL; <span class="comment">// error code already set</span></div> +<div class="line"><a name="l05902"></a><span class="lineno"> 5902</span> </div> +<div class="line"><a name="l05903"></a><span class="lineno"> 5903</span>  flip_vertically = ((int)s->img_y) > 0;</div> +<div class="line"><a name="l05904"></a><span class="lineno"> 5904</span>  s->img_y = abs((<span class="keywordtype">int</span>)s->img_y);</div> +<div class="line"><a name="l05905"></a><span class="lineno"> 5905</span> </div> +<div class="line"><a name="l05906"></a><span class="lineno"> 5906</span>  mr = info.mr;</div> +<div class="line"><a name="l05907"></a><span class="lineno"> 5907</span>  mg = info.mg;</div> +<div class="line"><a name="l05908"></a><span class="lineno"> 5908</span>  mb = info.mb;</div> +<div class="line"><a name="l05909"></a><span class="lineno"> 5909</span>  ma = info.ma;</div> +<div class="line"><a name="l05910"></a><span class="lineno"> 5910</span>  all_a = info.all_a;</div> <div class="line"><a name="l05911"></a><span class="lineno"> 5911</span> </div> -<div class="line"><a name="l05912"></a><span class="lineno"> 5912</span>  <span class="keywordflow">case</span> 0: {<span class="comment">//uncompressed</span></div> -<div class="line"><a name="l05913"></a><span class="lineno"> 5913</span>  <span class="keywordtype">int</span> x;</div> -<div class="line"><a name="l05914"></a><span class="lineno"> 5914</span> </div> -<div class="line"><a name="l05915"></a><span class="lineno"> 5915</span>  <span class="keywordflow">for</span>(x=0;x<width;++x, dest+=4)</div> -<div class="line"><a name="l05916"></a><span class="lineno"> 5916</span>  <span class="keywordflow">if</span> (!stbi__readval(s,packet->channel,dest))</div> -<div class="line"><a name="l05917"></a><span class="lineno"> 5917</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05918"></a><span class="lineno"> 5918</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l05919"></a><span class="lineno"> 5919</span>  }</div> -<div class="line"><a name="l05920"></a><span class="lineno"> 5920</span> </div> -<div class="line"><a name="l05921"></a><span class="lineno"> 5921</span>  <span class="keywordflow">case</span> 1:<span class="comment">//Pure RLE</span></div> -<div class="line"><a name="l05922"></a><span class="lineno"> 5922</span>  {</div> -<div class="line"><a name="l05923"></a><span class="lineno"> 5923</span>  <span class="keywordtype">int</span> left=width, i;</div> -<div class="line"><a name="l05924"></a><span class="lineno"> 5924</span> </div> -<div class="line"><a name="l05925"></a><span class="lineno"> 5925</span>  <span class="keywordflow">while</span> (left>0) {</div> -<div class="line"><a name="l05926"></a><span class="lineno"> 5926</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> count,value[4];</div> -<div class="line"><a name="l05927"></a><span class="lineno"> 5927</span> </div> -<div class="line"><a name="l05928"></a><span class="lineno"> 5928</span>  count=stbi__get8(s);</div> -<div class="line"><a name="l05929"></a><span class="lineno"> 5929</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"file too short (pure read count)"</span>);</div> -<div class="line"><a name="l05930"></a><span class="lineno"> 5930</span> </div> -<div class="line"><a name="l05931"></a><span class="lineno"> 5931</span>  <span class="keywordflow">if</span> (count > left)</div> -<div class="line"><a name="l05932"></a><span class="lineno"> 5932</span>  count = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) left;</div> -<div class="line"><a name="l05933"></a><span class="lineno"> 5933</span> </div> -<div class="line"><a name="l05934"></a><span class="lineno"> 5934</span>  <span class="keywordflow">if</span> (!stbi__readval(s,packet->channel,value)) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05935"></a><span class="lineno"> 5935</span> </div> -<div class="line"><a name="l05936"></a><span class="lineno"> 5936</span>  <span class="keywordflow">for</span>(i=0; i<count; ++i,dest+=4)</div> -<div class="line"><a name="l05937"></a><span class="lineno"> 5937</span>  stbi__copyval(packet->channel,dest,value);</div> -<div class="line"><a name="l05938"></a><span class="lineno"> 5938</span>  left -= count;</div> -<div class="line"><a name="l05939"></a><span class="lineno"> 5939</span>  }</div> -<div class="line"><a name="l05940"></a><span class="lineno"> 5940</span>  }</div> -<div class="line"><a name="l05941"></a><span class="lineno"> 5941</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l05942"></a><span class="lineno"> 5942</span> </div> -<div class="line"><a name="l05943"></a><span class="lineno"> 5943</span>  <span class="keywordflow">case</span> 2: {<span class="comment">//Mixed RLE</span></div> -<div class="line"><a name="l05944"></a><span class="lineno"> 5944</span>  <span class="keywordtype">int</span> left=width;</div> -<div class="line"><a name="l05945"></a><span class="lineno"> 5945</span>  <span class="keywordflow">while</span> (left>0) {</div> -<div class="line"><a name="l05946"></a><span class="lineno"> 5946</span>  <span class="keywordtype">int</span> count = stbi__get8(s), i;</div> -<div class="line"><a name="l05947"></a><span class="lineno"> 5947</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"file too short (mixed read count)"</span>);</div> -<div class="line"><a name="l05948"></a><span class="lineno"> 5948</span> </div> -<div class="line"><a name="l05949"></a><span class="lineno"> 5949</span>  <span class="keywordflow">if</span> (count >= 128) { <span class="comment">// Repeated</span></div> -<div class="line"><a name="l05950"></a><span class="lineno"> 5950</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> value[4];</div> -<div class="line"><a name="l05951"></a><span class="lineno"> 5951</span> </div> -<div class="line"><a name="l05952"></a><span class="lineno"> 5952</span>  <span class="keywordflow">if</span> (count==128)</div> -<div class="line"><a name="l05953"></a><span class="lineno"> 5953</span>  count = stbi__get16be(s);</div> -<div class="line"><a name="l05954"></a><span class="lineno"> 5954</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l05955"></a><span class="lineno"> 5955</span>  count -= 127;</div> -<div class="line"><a name="l05956"></a><span class="lineno"> 5956</span>  <span class="keywordflow">if</span> (count > left)</div> -<div class="line"><a name="l05957"></a><span class="lineno"> 5957</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"scanline overrun"</span>);</div> -<div class="line"><a name="l05958"></a><span class="lineno"> 5958</span> </div> -<div class="line"><a name="l05959"></a><span class="lineno"> 5959</span>  <span class="keywordflow">if</span> (!stbi__readval(s,packet->channel,value))</div> -<div class="line"><a name="l05960"></a><span class="lineno"> 5960</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05961"></a><span class="lineno"> 5961</span> </div> -<div class="line"><a name="l05962"></a><span class="lineno"> 5962</span>  <span class="keywordflow">for</span>(i=0;i<count;++i, dest += 4)</div> -<div class="line"><a name="l05963"></a><span class="lineno"> 5963</span>  stbi__copyval(packet->channel,dest,value);</div> -<div class="line"><a name="l05964"></a><span class="lineno"> 5964</span>  } <span class="keywordflow">else</span> { <span class="comment">// Raw</span></div> -<div class="line"><a name="l05965"></a><span class="lineno"> 5965</span>  ++count;</div> -<div class="line"><a name="l05966"></a><span class="lineno"> 5966</span>  <span class="keywordflow">if</span> (count>left) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"scanline overrun"</span>);</div> -<div class="line"><a name="l05967"></a><span class="lineno"> 5967</span> </div> -<div class="line"><a name="l05968"></a><span class="lineno"> 5968</span>  <span class="keywordflow">for</span>(i=0;i<count;++i, dest+=4)</div> -<div class="line"><a name="l05969"></a><span class="lineno"> 5969</span>  <span class="keywordflow">if</span> (!stbi__readval(s,packet->channel,dest))</div> -<div class="line"><a name="l05970"></a><span class="lineno"> 5970</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l05971"></a><span class="lineno"> 5971</span>  }</div> -<div class="line"><a name="l05972"></a><span class="lineno"> 5972</span>  left-=count;</div> -<div class="line"><a name="l05973"></a><span class="lineno"> 5973</span>  }</div> -<div class="line"><a name="l05974"></a><span class="lineno"> 5974</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l05975"></a><span class="lineno"> 5975</span>  }</div> -<div class="line"><a name="l05976"></a><span class="lineno"> 5976</span>  }</div> -<div class="line"><a name="l05977"></a><span class="lineno"> 5977</span>  }</div> -<div class="line"><a name="l05978"></a><span class="lineno"> 5978</span>  }</div> -<div class="line"><a name="l05979"></a><span class="lineno"> 5979</span> </div> -<div class="line"><a name="l05980"></a><span class="lineno"> 5980</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l05981"></a><span class="lineno"> 5981</span> }</div> -<div class="line"><a name="l05982"></a><span class="lineno"> 5982</span> </div> -<div class="line"><a name="l05983"></a><span class="lineno"> 5983</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pic_load(stbi__context *s,<span class="keywordtype">int</span> *px,<span class="keywordtype">int</span> *py,<span class="keywordtype">int</span> *comp,<span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l05984"></a><span class="lineno"> 5984</span> {</div> -<div class="line"><a name="l05985"></a><span class="lineno"> 5985</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *result;</div> -<div class="line"><a name="l05986"></a><span class="lineno"> 5986</span>  <span class="keywordtype">int</span> i, x,y, internal_comp;</div> -<div class="line"><a name="l05987"></a><span class="lineno"> 5987</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l05988"></a><span class="lineno"> 5988</span> </div> -<div class="line"><a name="l05989"></a><span class="lineno"> 5989</span>  <span class="keywordflow">if</span> (!comp) comp = &internal_comp;</div> -<div class="line"><a name="l05990"></a><span class="lineno"> 5990</span> </div> -<div class="line"><a name="l05991"></a><span class="lineno"> 5991</span>  <span class="keywordflow">for</span> (i=0; i<92; ++i)</div> -<div class="line"><a name="l05992"></a><span class="lineno"> 5992</span>  stbi__get8(s);</div> -<div class="line"><a name="l05993"></a><span class="lineno"> 5993</span> </div> -<div class="line"><a name="l05994"></a><span class="lineno"> 5994</span>  x = stbi__get16be(s);</div> -<div class="line"><a name="l05995"></a><span class="lineno"> 5995</span>  y = stbi__get16be(s);</div> -<div class="line"><a name="l05996"></a><span class="lineno"> 5996</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,<span class="stringliteral">"file too short (pic header)"</span>);</div> -<div class="line"><a name="l05997"></a><span class="lineno"> 5997</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(x, y, 4, 0)) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"PIC image too large to decode"</span>);</div> -<div class="line"><a name="l05998"></a><span class="lineno"> 5998</span> </div> -<div class="line"><a name="l05999"></a><span class="lineno"> 5999</span>  stbi__get32be(s); <span class="comment">//skip `ratio'</span></div> -<div class="line"><a name="l06000"></a><span class="lineno"> 6000</span>  stbi__get16be(s); <span class="comment">//skip `fields'</span></div> -<div class="line"><a name="l06001"></a><span class="lineno"> 6001</span>  stbi__get16be(s); <span class="comment">//skip `pad'</span></div> -<div class="line"><a name="l06002"></a><span class="lineno"> 6002</span> </div> -<div class="line"><a name="l06003"></a><span class="lineno"> 6003</span>  <span class="comment">// intermediate buffer is RGBA</span></div> -<div class="line"><a name="l06004"></a><span class="lineno"> 6004</span>  result = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(x, y, 4, 0);</div> -<div class="line"><a name="l06005"></a><span class="lineno"> 6005</span>  memset(result, 0xff, x*y*4);</div> -<div class="line"><a name="l06006"></a><span class="lineno"> 6006</span> </div> -<div class="line"><a name="l06007"></a><span class="lineno"> 6007</span>  <span class="keywordflow">if</span> (!stbi__pic_load_core(s,x,y,comp, result)) {</div> -<div class="line"><a name="l06008"></a><span class="lineno"> 6008</span>  STBI_FREE(result);</div> -<div class="line"><a name="l06009"></a><span class="lineno"> 6009</span>  result=0;</div> -<div class="line"><a name="l06010"></a><span class="lineno"> 6010</span>  }</div> -<div class="line"><a name="l06011"></a><span class="lineno"> 6011</span>  *px = x;</div> -<div class="line"><a name="l06012"></a><span class="lineno"> 6012</span>  *py = y;</div> -<div class="line"><a name="l06013"></a><span class="lineno"> 6013</span>  <span class="keywordflow">if</span> (req_comp == 0) req_comp = *comp;</div> -<div class="line"><a name="l06014"></a><span class="lineno"> 6014</span>  result=stbi__convert_format(result,4,req_comp,x,y);</div> -<div class="line"><a name="l06015"></a><span class="lineno"> 6015</span> </div> -<div class="line"><a name="l06016"></a><span class="lineno"> 6016</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l06017"></a><span class="lineno"> 6017</span> }</div> -<div class="line"><a name="l06018"></a><span class="lineno"> 6018</span> </div> -<div class="line"><a name="l06019"></a><span class="lineno"> 6019</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_test(stbi__context *s)</div> -<div class="line"><a name="l06020"></a><span class="lineno"> 6020</span> {</div> -<div class="line"><a name="l06021"></a><span class="lineno"> 6021</span>  <span class="keywordtype">int</span> r = stbi__pic_test_core(s);</div> -<div class="line"><a name="l06022"></a><span class="lineno"> 6022</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06023"></a><span class="lineno"> 6023</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l06024"></a><span class="lineno"> 6024</span> }</div> -<div class="line"><a name="l06025"></a><span class="lineno"> 6025</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l06026"></a><span class="lineno"> 6026</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06027"></a><span class="lineno"> 6027</span> <span class="comment">// *************************************************************************************************</span></div> -<div class="line"><a name="l06028"></a><span class="lineno"> 6028</span> <span class="comment">// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb</span></div> -<div class="line"><a name="l06029"></a><span class="lineno"> 6029</span> </div> -<div class="line"><a name="l06030"></a><span class="lineno"> 6030</span> <span class="preprocessor">#ifndef STBI_NO_GIF</span></div> -<div class="line"><a name="l06031"></a><span class="lineno"> 6031</span> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l06032"></a><span class="lineno"> 6032</span> {</div> -<div class="line"><a name="l06033"></a><span class="lineno"> 6033</span>  stbi__int16 prefix;</div> -<div class="line"><a name="l06034"></a><span class="lineno"> 6034</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> first;</div> -<div class="line"><a name="l06035"></a><span class="lineno"> 6035</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> suffix;</div> -<div class="line"><a name="l06036"></a><span class="lineno"> 6036</span> } stbi__gif_lzw;</div> -<div class="line"><a name="l06037"></a><span class="lineno"> 6037</span> </div> -<div class="line"><a name="l06038"></a><span class="lineno"> 6038</span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div> -<div class="line"><a name="l06039"></a><span class="lineno"> 6039</span> {</div> -<div class="line"><a name="l06040"></a><span class="lineno"> 6040</span>  <span class="keywordtype">int</span> w,h;</div> -<div class="line"><a name="l06041"></a><span class="lineno"> 6041</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, *old_out; <span class="comment">// output buffer (always 4 components)</span></div> -<div class="line"><a name="l06042"></a><span class="lineno"> 6042</span>  <span class="keywordtype">int</span> flags, bgindex, ratio, transparent, eflags, delay;</div> -<div class="line"><a name="l06043"></a><span class="lineno"> 6043</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> pal[256][4];</div> -<div class="line"><a name="l06044"></a><span class="lineno"> 6044</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> lpal[256][4];</div> -<div class="line"><a name="l06045"></a><span class="lineno"> 6045</span>  stbi__gif_lzw codes[4096];</div> -<div class="line"><a name="l06046"></a><span class="lineno"> 6046</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *color_table;</div> -<div class="line"><a name="l06047"></a><span class="lineno"> 6047</span>  <span class="keywordtype">int</span> parse, step;</div> -<div class="line"><a name="l06048"></a><span class="lineno"> 6048</span>  <span class="keywordtype">int</span> lflags;</div> -<div class="line"><a name="l06049"></a><span class="lineno"> 6049</span>  <span class="keywordtype">int</span> start_x, start_y;</div> -<div class="line"><a name="l06050"></a><span class="lineno"> 6050</span>  <span class="keywordtype">int</span> max_x, max_y;</div> -<div class="line"><a name="l06051"></a><span class="lineno"> 6051</span>  <span class="keywordtype">int</span> cur_x, cur_y;</div> -<div class="line"><a name="l06052"></a><span class="lineno"> 6052</span>  <span class="keywordtype">int</span> line_size;</div> -<div class="line"><a name="l06053"></a><span class="lineno"> 6053</span> } stbi__gif;</div> -<div class="line"><a name="l06054"></a><span class="lineno"> 6054</span> </div> -<div class="line"><a name="l06055"></a><span class="lineno"> 6055</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_test_raw(stbi__context *s)</div> -<div class="line"><a name="l06056"></a><span class="lineno"> 6056</span> {</div> -<div class="line"><a name="l06057"></a><span class="lineno"> 6057</span>  <span class="keywordtype">int</span> sz;</div> -<div class="line"><a name="l06058"></a><span class="lineno"> 6058</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'G'</span> || stbi__get8(s) != <span class="charliteral">'I'</span> || stbi__get8(s) != <span class="charliteral">'F'</span> || stbi__get8(s) != <span class="charliteral">'8'</span>) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06059"></a><span class="lineno"> 6059</span>  sz = stbi__get8(s);</div> -<div class="line"><a name="l06060"></a><span class="lineno"> 6060</span>  <span class="keywordflow">if</span> (sz != <span class="charliteral">'9'</span> && sz != <span class="charliteral">'7'</span>) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06061"></a><span class="lineno"> 6061</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'a'</span>) <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06062"></a><span class="lineno"> 6062</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06063"></a><span class="lineno"> 6063</span> }</div> -<div class="line"><a name="l06064"></a><span class="lineno"> 6064</span> </div> -<div class="line"><a name="l06065"></a><span class="lineno"> 6065</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_test(stbi__context *s)</div> -<div class="line"><a name="l06066"></a><span class="lineno"> 6066</span> {</div> -<div class="line"><a name="l06067"></a><span class="lineno"> 6067</span>  <span class="keywordtype">int</span> r = stbi__gif_test_raw(s);</div> -<div class="line"><a name="l06068"></a><span class="lineno"> 6068</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06069"></a><span class="lineno"> 6069</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l06070"></a><span class="lineno"> 6070</span> }</div> -<div class="line"><a name="l06071"></a><span class="lineno"> 6071</span> </div> -<div class="line"><a name="l06072"></a><span class="lineno"> 6072</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__gif_parse_colortable(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> pal[256][4], <span class="keywordtype">int</span> num_entries, <span class="keywordtype">int</span> transp)</div> -<div class="line"><a name="l06073"></a><span class="lineno"> 6073</span> {</div> -<div class="line"><a name="l06074"></a><span class="lineno"> 6074</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l06075"></a><span class="lineno"> 6075</span>  <span class="keywordflow">for</span> (i=0; i < num_entries; ++i) {</div> -<div class="line"><a name="l06076"></a><span class="lineno"> 6076</span>  pal[i][2] = stbi__get8(s);</div> -<div class="line"><a name="l06077"></a><span class="lineno"> 6077</span>  pal[i][1] = stbi__get8(s);</div> -<div class="line"><a name="l06078"></a><span class="lineno"> 6078</span>  pal[i][0] = stbi__get8(s);</div> -<div class="line"><a name="l06079"></a><span class="lineno"> 6079</span>  pal[i][3] = transp == i ? 0 : 255;</div> -<div class="line"><a name="l06080"></a><span class="lineno"> 6080</span>  }</div> -<div class="line"><a name="l06081"></a><span class="lineno"> 6081</span> }</div> -<div class="line"><a name="l06082"></a><span class="lineno"> 6082</span> </div> -<div class="line"><a name="l06083"></a><span class="lineno"> 6083</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_header(stbi__context *s, stbi__gif *g, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> is_info)</div> -<div class="line"><a name="l06084"></a><span class="lineno"> 6084</span> {</div> -<div class="line"><a name="l06085"></a><span class="lineno"> 6085</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> version;</div> -<div class="line"><a name="l06086"></a><span class="lineno"> 6086</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'G'</span> || stbi__get8(s) != <span class="charliteral">'I'</span> || stbi__get8(s) != <span class="charliteral">'F'</span> || stbi__get8(s) != <span class="charliteral">'8'</span>)</div> -<div class="line"><a name="l06087"></a><span class="lineno"> 6087</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not GIF"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06088"></a><span class="lineno"> 6088</span> </div> -<div class="line"><a name="l06089"></a><span class="lineno"> 6089</span>  version = stbi__get8(s);</div> -<div class="line"><a name="l06090"></a><span class="lineno"> 6090</span>  <span class="keywordflow">if</span> (version != <span class="charliteral">'7'</span> && version != <span class="charliteral">'9'</span>) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not GIF"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06091"></a><span class="lineno"> 6091</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'a'</span>) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not GIF"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06092"></a><span class="lineno"> 6092</span> </div> -<div class="line"><a name="l06093"></a><span class="lineno"> 6093</span>  stbi__g_failure_reason = <span class="stringliteral">""</span>;</div> -<div class="line"><a name="l06094"></a><span class="lineno"> 6094</span>  g->w = stbi__get16le(s);</div> -<div class="line"><a name="l06095"></a><span class="lineno"> 6095</span>  g->h = stbi__get16le(s);</div> -<div class="line"><a name="l06096"></a><span class="lineno"> 6096</span>  g->flags = stbi__get8(s);</div> -<div class="line"><a name="l06097"></a><span class="lineno"> 6097</span>  g->bgindex = stbi__get8(s);</div> -<div class="line"><a name="l06098"></a><span class="lineno"> 6098</span>  g->ratio = stbi__get8(s);</div> -<div class="line"><a name="l06099"></a><span class="lineno"> 6099</span>  g->transparent = -1;</div> -<div class="line"><a name="l06100"></a><span class="lineno"> 6100</span> </div> -<div class="line"><a name="l06101"></a><span class="lineno"> 6101</span>  <span class="keywordflow">if</span> (comp != 0) *comp = 4; <span class="comment">// can't actually tell whether it's 3 or 4 until we parse the comments</span></div> -<div class="line"><a name="l06102"></a><span class="lineno"> 6102</span> </div> -<div class="line"><a name="l06103"></a><span class="lineno"> 6103</span>  <span class="keywordflow">if</span> (is_info) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06104"></a><span class="lineno"> 6104</span> </div> -<div class="line"><a name="l06105"></a><span class="lineno"> 6105</span>  <span class="keywordflow">if</span> (g->flags & 0x80)</div> -<div class="line"><a name="l06106"></a><span class="lineno"> 6106</span>  stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1);</div> -<div class="line"><a name="l06107"></a><span class="lineno"> 6107</span> </div> -<div class="line"><a name="l06108"></a><span class="lineno"> 6108</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06109"></a><span class="lineno"> 6109</span> }</div> -<div class="line"><a name="l06110"></a><span class="lineno"> 6110</span> </div> -<div class="line"><a name="l06111"></a><span class="lineno"> 6111</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_info_raw(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06112"></a><span class="lineno"> 6112</span> {</div> -<div class="line"><a name="l06113"></a><span class="lineno"> 6113</span>  stbi__gif* g = (stbi__gif*) stbi__malloc(<span class="keyword">sizeof</span>(stbi__gif));</div> -<div class="line"><a name="l06114"></a><span class="lineno"> 6114</span>  <span class="keywordflow">if</span> (!stbi__gif_header(s, g, comp, 1)) {</div> -<div class="line"><a name="l06115"></a><span class="lineno"> 6115</span>  STBI_FREE(g);</div> -<div class="line"><a name="l06116"></a><span class="lineno"> 6116</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06117"></a><span class="lineno"> 6117</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06118"></a><span class="lineno"> 6118</span>  }</div> -<div class="line"><a name="l06119"></a><span class="lineno"> 6119</span>  <span class="keywordflow">if</span> (x) *x = g->w;</div> -<div class="line"><a name="l06120"></a><span class="lineno"> 6120</span>  <span class="keywordflow">if</span> (y) *y = g->h;</div> -<div class="line"><a name="l06121"></a><span class="lineno"> 6121</span>  STBI_FREE(g);</div> -<div class="line"><a name="l06122"></a><span class="lineno"> 6122</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06123"></a><span class="lineno"> 6123</span> }</div> -<div class="line"><a name="l06124"></a><span class="lineno"> 6124</span> </div> -<div class="line"><a name="l06125"></a><span class="lineno"> 6125</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__out_gif_code(stbi__gif *g, stbi__uint16 code)</div> -<div class="line"><a name="l06126"></a><span class="lineno"> 6126</span> {</div> -<div class="line"><a name="l06127"></a><span class="lineno"> 6127</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p, *c;</div> -<div class="line"><a name="l06128"></a><span class="lineno"> 6128</span> </div> -<div class="line"><a name="l06129"></a><span class="lineno"> 6129</span>  <span class="comment">// recurse to decode the prefixes, since the linked-list is backwards,</span></div> -<div class="line"><a name="l06130"></a><span class="lineno"> 6130</span>  <span class="comment">// and working backwards through an interleaved image would be nasty</span></div> -<div class="line"><a name="l06131"></a><span class="lineno"> 6131</span>  <span class="keywordflow">if</span> (g->codes[code].prefix >= 0)</div> -<div class="line"><a name="l06132"></a><span class="lineno"> 6132</span>  stbi__out_gif_code(g, g->codes[code].prefix);</div> -<div class="line"><a name="l06133"></a><span class="lineno"> 6133</span> </div> -<div class="line"><a name="l06134"></a><span class="lineno"> 6134</span>  <span class="keywordflow">if</span> (g->cur_y >= g->max_y) <span class="keywordflow">return</span>;</div> -<div class="line"><a name="l06135"></a><span class="lineno"> 6135</span> </div> -<div class="line"><a name="l06136"></a><span class="lineno"> 6136</span>  p = &g->out[g->cur_x + g->cur_y];</div> -<div class="line"><a name="l06137"></a><span class="lineno"> 6137</span>  c = &g->color_table[g->codes[code].suffix * 4];</div> -<div class="line"><a name="l06138"></a><span class="lineno"> 6138</span> </div> -<div class="line"><a name="l06139"></a><span class="lineno"> 6139</span>  <span class="keywordflow">if</span> (c[3] >= 128) {</div> -<div class="line"><a name="l06140"></a><span class="lineno"> 6140</span>  p[0] = c[2];</div> -<div class="line"><a name="l06141"></a><span class="lineno"> 6141</span>  p[1] = c[1];</div> -<div class="line"><a name="l06142"></a><span class="lineno"> 6142</span>  p[2] = c[0];</div> -<div class="line"><a name="l06143"></a><span class="lineno"> 6143</span>  p[3] = c[3];</div> -<div class="line"><a name="l06144"></a><span class="lineno"> 6144</span>  }</div> -<div class="line"><a name="l06145"></a><span class="lineno"> 6145</span>  g->cur_x += 4;</div> -<div class="line"><a name="l06146"></a><span class="lineno"> 6146</span> </div> -<div class="line"><a name="l06147"></a><span class="lineno"> 6147</span>  <span class="keywordflow">if</span> (g->cur_x >= g->max_x) {</div> -<div class="line"><a name="l06148"></a><span class="lineno"> 6148</span>  g->cur_x = g->start_x;</div> -<div class="line"><a name="l06149"></a><span class="lineno"> 6149</span>  g->cur_y += g->step;</div> -<div class="line"><a name="l06150"></a><span class="lineno"> 6150</span> </div> -<div class="line"><a name="l06151"></a><span class="lineno"> 6151</span>  <span class="keywordflow">while</span> (g->cur_y >= g->max_y && g->parse > 0) {</div> -<div class="line"><a name="l06152"></a><span class="lineno"> 6152</span>  g->step = (1 << g->parse) * g->line_size;</div> -<div class="line"><a name="l06153"></a><span class="lineno"> 6153</span>  g->cur_y = g->start_y + (g->step >> 1);</div> -<div class="line"><a name="l06154"></a><span class="lineno"> 6154</span>  --g->parse;</div> -<div class="line"><a name="l06155"></a><span class="lineno"> 6155</span>  }</div> -<div class="line"><a name="l06156"></a><span class="lineno"> 6156</span>  }</div> -<div class="line"><a name="l06157"></a><span class="lineno"> 6157</span> }</div> -<div class="line"><a name="l06158"></a><span class="lineno"> 6158</span> </div> -<div class="line"><a name="l06159"></a><span class="lineno"> 6159</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__process_gif_raster(stbi__context *s, stbi__gif *g)</div> -<div class="line"><a name="l06160"></a><span class="lineno"> 6160</span> {</div> -<div class="line"><a name="l06161"></a><span class="lineno"> 6161</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> lzw_cs;</div> -<div class="line"><a name="l06162"></a><span class="lineno"> 6162</span>  stbi__int32 len, init_code;</div> -<div class="line"><a name="l06163"></a><span class="lineno"> 6163</span>  stbi__uint32 first;</div> -<div class="line"><a name="l06164"></a><span class="lineno"> 6164</span>  stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear;</div> -<div class="line"><a name="l06165"></a><span class="lineno"> 6165</span>  stbi__gif_lzw *p;</div> -<div class="line"><a name="l06166"></a><span class="lineno"> 6166</span> </div> -<div class="line"><a name="l06167"></a><span class="lineno"> 6167</span>  lzw_cs = stbi__get8(s);</div> -<div class="line"><a name="l06168"></a><span class="lineno"> 6168</span>  <span class="keywordflow">if</span> (lzw_cs > 12) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l06169"></a><span class="lineno"> 6169</span>  clear = 1 << lzw_cs;</div> -<div class="line"><a name="l06170"></a><span class="lineno"> 6170</span>  first = 1;</div> -<div class="line"><a name="l06171"></a><span class="lineno"> 6171</span>  codesize = lzw_cs + 1;</div> -<div class="line"><a name="l06172"></a><span class="lineno"> 6172</span>  codemask = (1 << codesize) - 1;</div> -<div class="line"><a name="l06173"></a><span class="lineno"> 6173</span>  bits = 0;</div> -<div class="line"><a name="l06174"></a><span class="lineno"> 6174</span>  valid_bits = 0;</div> -<div class="line"><a name="l06175"></a><span class="lineno"> 6175</span>  <span class="keywordflow">for</span> (init_code = 0; init_code < clear; init_code++) {</div> -<div class="line"><a name="l06176"></a><span class="lineno"> 6176</span>  g->codes[init_code].prefix = -1;</div> -<div class="line"><a name="l06177"></a><span class="lineno"> 6177</span>  g->codes[init_code].first = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) init_code;</div> -<div class="line"><a name="l06178"></a><span class="lineno"> 6178</span>  g->codes[init_code].suffix = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) init_code;</div> -<div class="line"><a name="l06179"></a><span class="lineno"> 6179</span>  }</div> -<div class="line"><a name="l06180"></a><span class="lineno"> 6180</span> </div> -<div class="line"><a name="l06181"></a><span class="lineno"> 6181</span>  <span class="comment">// support no starting clear code</span></div> -<div class="line"><a name="l06182"></a><span class="lineno"> 6182</span>  avail = clear+2;</div> -<div class="line"><a name="l06183"></a><span class="lineno"> 6183</span>  oldcode = -1;</div> -<div class="line"><a name="l06184"></a><span class="lineno"> 6184</span> </div> -<div class="line"><a name="l06185"></a><span class="lineno"> 6185</span>  len = 0;</div> -<div class="line"><a name="l06186"></a><span class="lineno"> 6186</span>  <span class="keywordflow">for</span>(;;) {</div> -<div class="line"><a name="l06187"></a><span class="lineno"> 6187</span>  <span class="keywordflow">if</span> (valid_bits < codesize) {</div> -<div class="line"><a name="l06188"></a><span class="lineno"> 6188</span>  <span class="keywordflow">if</span> (len == 0) {</div> -<div class="line"><a name="l06189"></a><span class="lineno"> 6189</span>  len = stbi__get8(s); <span class="comment">// start new block</span></div> -<div class="line"><a name="l06190"></a><span class="lineno"> 6190</span>  <span class="keywordflow">if</span> (len == 0)</div> -<div class="line"><a name="l06191"></a><span class="lineno"> 6191</span>  <span class="keywordflow">return</span> g->out;</div> -<div class="line"><a name="l06192"></a><span class="lineno"> 6192</span>  }</div> -<div class="line"><a name="l06193"></a><span class="lineno"> 6193</span>  --len;</div> -<div class="line"><a name="l06194"></a><span class="lineno"> 6194</span>  bits |= (stbi__int32) stbi__get8(s) << valid_bits;</div> -<div class="line"><a name="l06195"></a><span class="lineno"> 6195</span>  valid_bits += 8;</div> -<div class="line"><a name="l06196"></a><span class="lineno"> 6196</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06197"></a><span class="lineno"> 6197</span>  stbi__int32 code = bits & codemask;</div> -<div class="line"><a name="l06198"></a><span class="lineno"> 6198</span>  bits >>= codesize;</div> -<div class="line"><a name="l06199"></a><span class="lineno"> 6199</span>  valid_bits -= codesize;</div> -<div class="line"><a name="l06200"></a><span class="lineno"> 6200</span>  <span class="comment">// @OPTIMIZE: is there some way we can accelerate the non-clear path?</span></div> -<div class="line"><a name="l06201"></a><span class="lineno"> 6201</span>  <span class="keywordflow">if</span> (code == clear) { <span class="comment">// clear code</span></div> -<div class="line"><a name="l06202"></a><span class="lineno"> 6202</span>  codesize = lzw_cs + 1;</div> -<div class="line"><a name="l06203"></a><span class="lineno"> 6203</span>  codemask = (1 << codesize) - 1;</div> -<div class="line"><a name="l06204"></a><span class="lineno"> 6204</span>  avail = clear + 2;</div> -<div class="line"><a name="l06205"></a><span class="lineno"> 6205</span>  oldcode = -1;</div> -<div class="line"><a name="l06206"></a><span class="lineno"> 6206</span>  first = 0;</div> -<div class="line"><a name="l06207"></a><span class="lineno"> 6207</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (code == clear + 1) { <span class="comment">// end of stream code</span></div> -<div class="line"><a name="l06208"></a><span class="lineno"> 6208</span>  stbi__skip(s, len);</div> -<div class="line"><a name="l06209"></a><span class="lineno"> 6209</span>  <span class="keywordflow">while</span> ((len = stbi__get8(s)) > 0)</div> -<div class="line"><a name="l06210"></a><span class="lineno"> 6210</span>  stbi__skip(s,len);</div> -<div class="line"><a name="l06211"></a><span class="lineno"> 6211</span>  <span class="keywordflow">return</span> g->out;</div> -<div class="line"><a name="l06212"></a><span class="lineno"> 6212</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (code <= avail) {</div> -<div class="line"><a name="l06213"></a><span class="lineno"> 6213</span>  <span class="keywordflow">if</span> (first) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"no clear code"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l05912"></a><span class="lineno"> 5912</span>  <span class="keywordflow">if</span> (info.hsz == 12) {</div> +<div class="line"><a name="l05913"></a><span class="lineno"> 5913</span>  <span class="keywordflow">if</span> (info.bpp < 24)</div> +<div class="line"><a name="l05914"></a><span class="lineno"> 5914</span>  psize = (info.offset - 14 - 24) / 3;</div> +<div class="line"><a name="l05915"></a><span class="lineno"> 5915</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05916"></a><span class="lineno"> 5916</span>  <span class="keywordflow">if</span> (info.bpp < 16)</div> +<div class="line"><a name="l05917"></a><span class="lineno"> 5917</span>  psize = (info.offset - 14 - info.hsz) >> 2;</div> +<div class="line"><a name="l05918"></a><span class="lineno"> 5918</span>  }</div> +<div class="line"><a name="l05919"></a><span class="lineno"> 5919</span> </div> +<div class="line"><a name="l05920"></a><span class="lineno"> 5920</span>  s->img_n = ma ? 4 : 3;</div> +<div class="line"><a name="l05921"></a><span class="lineno"> 5921</span>  <span class="keywordflow">if</span> (req_comp && req_comp >= 3) <span class="comment">// we can directly decode 3 or 4</span></div> +<div class="line"><a name="l05922"></a><span class="lineno"> 5922</span>  target = req_comp;</div> +<div class="line"><a name="l05923"></a><span class="lineno"> 5923</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l05924"></a><span class="lineno"> 5924</span>  target = s->img_n; <span class="comment">// if they want monochrome, we'll post-convert</span></div> +<div class="line"><a name="l05925"></a><span class="lineno"> 5925</span> </div> +<div class="line"><a name="l05926"></a><span class="lineno"> 5926</span>  <span class="comment">// sanity-check size</span></div> +<div class="line"><a name="l05927"></a><span class="lineno"> 5927</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0))</div> +<div class="line"><a name="l05928"></a><span class="lineno"> 5928</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> +<div class="line"><a name="l05929"></a><span class="lineno"> 5929</span> </div> +<div class="line"><a name="l05930"></a><span class="lineno"> 5930</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(target, s->img_x, s->img_y, 0);</div> +<div class="line"><a name="l05931"></a><span class="lineno"> 5931</span>  <span class="keywordflow">if</span> (!out)</div> +<div class="line"><a name="l05932"></a><span class="lineno"> 5932</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l05933"></a><span class="lineno"> 5933</span>  <span class="keywordflow">if</span> (info.bpp < 16) {</div> +<div class="line"><a name="l05934"></a><span class="lineno"> 5934</span>  <span class="keywordtype">int</span> z = 0;</div> +<div class="line"><a name="l05935"></a><span class="lineno"> 5935</span>  <span class="keywordflow">if</span> (psize == 0 || psize > 256) {</div> +<div class="line"><a name="l05936"></a><span class="lineno"> 5936</span>  STBI_FREE(out);</div> +<div class="line"><a name="l05937"></a><span class="lineno"> 5937</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"invalid"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> +<div class="line"><a name="l05938"></a><span class="lineno"> 5938</span>  }</div> +<div class="line"><a name="l05939"></a><span class="lineno"> 5939</span>  <span class="keywordflow">for</span> (i = 0; i < psize; ++i) {</div> +<div class="line"><a name="l05940"></a><span class="lineno"> 5940</span>  pal[i][2] = stbi__get8(s);</div> +<div class="line"><a name="l05941"></a><span class="lineno"> 5941</span>  pal[i][1] = stbi__get8(s);</div> +<div class="line"><a name="l05942"></a><span class="lineno"> 5942</span>  pal[i][0] = stbi__get8(s);</div> +<div class="line"><a name="l05943"></a><span class="lineno"> 5943</span>  <span class="keywordflow">if</span> (info.hsz != 12)</div> +<div class="line"><a name="l05944"></a><span class="lineno"> 5944</span>  stbi__get8(s);</div> +<div class="line"><a name="l05945"></a><span class="lineno"> 5945</span>  pal[i][3] = 255;</div> +<div class="line"><a name="l05946"></a><span class="lineno"> 5946</span>  }</div> +<div class="line"><a name="l05947"></a><span class="lineno"> 5947</span>  stbi__skip(s, info.offset - 14 - info.hsz -</div> +<div class="line"><a name="l05948"></a><span class="lineno"> 5948</span>  psize * (info.hsz == 12 ? 3 : 4));</div> +<div class="line"><a name="l05949"></a><span class="lineno"> 5949</span>  <span class="keywordflow">if</span> (info.bpp == 4)</div> +<div class="line"><a name="l05950"></a><span class="lineno"> 5950</span>  width = (s->img_x + 1) >> 1;</div> +<div class="line"><a name="l05951"></a><span class="lineno"> 5951</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (info.bpp == 8)</div> +<div class="line"><a name="l05952"></a><span class="lineno"> 5952</span>  width = s->img_x;</div> +<div class="line"><a name="l05953"></a><span class="lineno"> 5953</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05954"></a><span class="lineno"> 5954</span>  STBI_FREE(out);</div> +<div class="line"><a name="l05955"></a><span class="lineno"> 5955</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad bpp"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> +<div class="line"><a name="l05956"></a><span class="lineno"> 5956</span>  }</div> +<div class="line"><a name="l05957"></a><span class="lineno"> 5957</span>  pad = (-width) & 3;</div> +<div class="line"><a name="l05958"></a><span class="lineno"> 5958</span>  <span class="keywordflow">for</span> (j = 0; j < (int)s->img_y; ++j) {</div> +<div class="line"><a name="l05959"></a><span class="lineno"> 5959</span>  <span class="keywordflow">for</span> (i = 0; i < (int)s->img_x; i += 2) {</div> +<div class="line"><a name="l05960"></a><span class="lineno"> 5960</span>  <span class="keywordtype">int</span> v = stbi__get8(s), v2 = 0;</div> +<div class="line"><a name="l05961"></a><span class="lineno"> 5961</span>  <span class="keywordflow">if</span> (info.bpp == 4) {</div> +<div class="line"><a name="l05962"></a><span class="lineno"> 5962</span>  v2 = v & 15;</div> +<div class="line"><a name="l05963"></a><span class="lineno"> 5963</span>  v >>= 4;</div> +<div class="line"><a name="l05964"></a><span class="lineno"> 5964</span>  }</div> +<div class="line"><a name="l05965"></a><span class="lineno"> 5965</span>  out[z++] = pal[v][0];</div> +<div class="line"><a name="l05966"></a><span class="lineno"> 5966</span>  out[z++] = pal[v][1];</div> +<div class="line"><a name="l05967"></a><span class="lineno"> 5967</span>  out[z++] = pal[v][2];</div> +<div class="line"><a name="l05968"></a><span class="lineno"> 5968</span>  <span class="keywordflow">if</span> (target == 4)</div> +<div class="line"><a name="l05969"></a><span class="lineno"> 5969</span>  out[z++] = 255;</div> +<div class="line"><a name="l05970"></a><span class="lineno"> 5970</span>  <span class="keywordflow">if</span> (i + 1 == (<span class="keywordtype">int</span>)s->img_x)</div> +<div class="line"><a name="l05971"></a><span class="lineno"> 5971</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l05972"></a><span class="lineno"> 5972</span>  v = (info.bpp == 8) ? stbi__get8(s) : v2;</div> +<div class="line"><a name="l05973"></a><span class="lineno"> 5973</span>  out[z++] = pal[v][0];</div> +<div class="line"><a name="l05974"></a><span class="lineno"> 5974</span>  out[z++] = pal[v][1];</div> +<div class="line"><a name="l05975"></a><span class="lineno"> 5975</span>  out[z++] = pal[v][2];</div> +<div class="line"><a name="l05976"></a><span class="lineno"> 5976</span>  <span class="keywordflow">if</span> (target == 4)</div> +<div class="line"><a name="l05977"></a><span class="lineno"> 5977</span>  out[z++] = 255;</div> +<div class="line"><a name="l05978"></a><span class="lineno"> 5978</span>  }</div> +<div class="line"><a name="l05979"></a><span class="lineno"> 5979</span>  stbi__skip(s, pad);</div> +<div class="line"><a name="l05980"></a><span class="lineno"> 5980</span>  }</div> +<div class="line"><a name="l05981"></a><span class="lineno"> 5981</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l05982"></a><span class="lineno"> 5982</span>  <span class="keywordtype">int</span> rshift = 0, gshift = 0, bshift = 0, ashift = 0, rcount = 0,</div> +<div class="line"><a name="l05983"></a><span class="lineno"> 5983</span>  gcount = 0, bcount = 0, acount = 0;</div> +<div class="line"><a name="l05984"></a><span class="lineno"> 5984</span>  <span class="keywordtype">int</span> z = 0;</div> +<div class="line"><a name="l05985"></a><span class="lineno"> 5985</span>  <span class="keywordtype">int</span> easy = 0;</div> +<div class="line"><a name="l05986"></a><span class="lineno"> 5986</span>  stbi__skip(s, info.offset - 14 - info.hsz);</div> +<div class="line"><a name="l05987"></a><span class="lineno"> 5987</span>  <span class="keywordflow">if</span> (info.bpp == 24)</div> +<div class="line"><a name="l05988"></a><span class="lineno"> 5988</span>  width = 3 * s->img_x;</div> +<div class="line"><a name="l05989"></a><span class="lineno"> 5989</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (info.bpp == 16)</div> +<div class="line"><a name="l05990"></a><span class="lineno"> 5990</span>  width = 2 * s->img_x;</div> +<div class="line"><a name="l05991"></a><span class="lineno"> 5991</span>  <span class="keywordflow">else</span> <span class="comment">/* bpp = 32 and pad = 0 */</span></div> +<div class="line"><a name="l05992"></a><span class="lineno"> 5992</span>  width = 0;</div> +<div class="line"><a name="l05993"></a><span class="lineno"> 5993</span>  pad = (-width) & 3;</div> +<div class="line"><a name="l05994"></a><span class="lineno"> 5994</span>  <span class="keywordflow">if</span> (info.bpp == 24) {</div> +<div class="line"><a name="l05995"></a><span class="lineno"> 5995</span>  easy = 1;</div> +<div class="line"><a name="l05996"></a><span class="lineno"> 5996</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (info.bpp == 32) {</div> +<div class="line"><a name="l05997"></a><span class="lineno"> 5997</span>  <span class="keywordflow">if</span> (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 &&</div> +<div class="line"><a name="l05998"></a><span class="lineno"> 5998</span>  ma == 0xff000000)</div> +<div class="line"><a name="l05999"></a><span class="lineno"> 5999</span>  easy = 2;</div> +<div class="line"><a name="l06000"></a><span class="lineno"> 6000</span>  }</div> +<div class="line"><a name="l06001"></a><span class="lineno"> 6001</span>  <span class="keywordflow">if</span> (!easy) {</div> +<div class="line"><a name="l06002"></a><span class="lineno"> 6002</span>  <span class="keywordflow">if</span> (!mr || !mg || !mb) {</div> +<div class="line"><a name="l06003"></a><span class="lineno"> 6003</span>  STBI_FREE(out);</div> +<div class="line"><a name="l06004"></a><span class="lineno"> 6004</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad masks"</span>, <span class="stringliteral">"Corrupt BMP"</span>);</div> +<div class="line"><a name="l06005"></a><span class="lineno"> 6005</span>  }</div> +<div class="line"><a name="l06006"></a><span class="lineno"> 6006</span>  <span class="comment">// right shift amt to put high bit in position #7</span></div> +<div class="line"><a name="l06007"></a><span class="lineno"> 6007</span>  rshift = stbi__high_bit(mr) - 7;</div> +<div class="line"><a name="l06008"></a><span class="lineno"> 6008</span>  rcount = stbi__bitcount(mr);</div> +<div class="line"><a name="l06009"></a><span class="lineno"> 6009</span>  gshift = stbi__high_bit(mg) - 7;</div> +<div class="line"><a name="l06010"></a><span class="lineno"> 6010</span>  gcount = stbi__bitcount(mg);</div> +<div class="line"><a name="l06011"></a><span class="lineno"> 6011</span>  bshift = stbi__high_bit(mb) - 7;</div> +<div class="line"><a name="l06012"></a><span class="lineno"> 6012</span>  bcount = stbi__bitcount(mb);</div> +<div class="line"><a name="l06013"></a><span class="lineno"> 6013</span>  ashift = stbi__high_bit(ma) - 7;</div> +<div class="line"><a name="l06014"></a><span class="lineno"> 6014</span>  acount = stbi__bitcount(ma);</div> +<div class="line"><a name="l06015"></a><span class="lineno"> 6015</span>  }</div> +<div class="line"><a name="l06016"></a><span class="lineno"> 6016</span>  <span class="keywordflow">for</span> (j = 0; j < (int)s->img_y; ++j) {</div> +<div class="line"><a name="l06017"></a><span class="lineno"> 6017</span>  <span class="keywordflow">if</span> (easy) {</div> +<div class="line"><a name="l06018"></a><span class="lineno"> 6018</span>  <span class="keywordflow">for</span> (i = 0; i < (int)s->img_x; ++i) {</div> +<div class="line"><a name="l06019"></a><span class="lineno"> 6019</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> a;</div> +<div class="line"><a name="l06020"></a><span class="lineno"> 6020</span>  out[z + 2] = stbi__get8(s);</div> +<div class="line"><a name="l06021"></a><span class="lineno"> 6021</span>  out[z + 1] = stbi__get8(s);</div> +<div class="line"><a name="l06022"></a><span class="lineno"> 6022</span>  out[z + 0] = stbi__get8(s);</div> +<div class="line"><a name="l06023"></a><span class="lineno"> 6023</span>  z += 3;</div> +<div class="line"><a name="l06024"></a><span class="lineno"> 6024</span>  a = (easy == 2 ? stbi__get8(s) : 255);</div> +<div class="line"><a name="l06025"></a><span class="lineno"> 6025</span>  all_a |= a;</div> +<div class="line"><a name="l06026"></a><span class="lineno"> 6026</span>  <span class="keywordflow">if</span> (target == 4)</div> +<div class="line"><a name="l06027"></a><span class="lineno"> 6027</span>  out[z++] = a;</div> +<div class="line"><a name="l06028"></a><span class="lineno"> 6028</span>  }</div> +<div class="line"><a name="l06029"></a><span class="lineno"> 6029</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06030"></a><span class="lineno"> 6030</span>  <span class="keywordtype">int</span> bpp = info.bpp;</div> +<div class="line"><a name="l06031"></a><span class="lineno"> 6031</span>  <span class="keywordflow">for</span> (i = 0; i < (int)s->img_x; ++i) {</div> +<div class="line"><a name="l06032"></a><span class="lineno"> 6032</span>  stbi__uint32 v = (bpp == 16 ? (stbi__uint32)stbi__get16le(s)</div> +<div class="line"><a name="l06033"></a><span class="lineno"> 6033</span>  : stbi__get32le(s));</div> +<div class="line"><a name="l06034"></a><span class="lineno"> 6034</span>  <span class="keywordtype">int</span> a;</div> +<div class="line"><a name="l06035"></a><span class="lineno"> 6035</span>  out[z++] = STBI__BYTECAST(</div> +<div class="line"><a name="l06036"></a><span class="lineno"> 6036</span>  stbi__shiftsigned(v & mr, rshift, rcount));</div> +<div class="line"><a name="l06037"></a><span class="lineno"> 6037</span>  out[z++] = STBI__BYTECAST(</div> +<div class="line"><a name="l06038"></a><span class="lineno"> 6038</span>  stbi__shiftsigned(v & mg, gshift, gcount));</div> +<div class="line"><a name="l06039"></a><span class="lineno"> 6039</span>  out[z++] = STBI__BYTECAST(</div> +<div class="line"><a name="l06040"></a><span class="lineno"> 6040</span>  stbi__shiftsigned(v & mb, bshift, bcount));</div> +<div class="line"><a name="l06041"></a><span class="lineno"> 6041</span>  a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255);</div> +<div class="line"><a name="l06042"></a><span class="lineno"> 6042</span>  all_a |= a;</div> +<div class="line"><a name="l06043"></a><span class="lineno"> 6043</span>  <span class="keywordflow">if</span> (target == 4)</div> +<div class="line"><a name="l06044"></a><span class="lineno"> 6044</span>  out[z++] = STBI__BYTECAST(a);</div> +<div class="line"><a name="l06045"></a><span class="lineno"> 6045</span>  }</div> +<div class="line"><a name="l06046"></a><span class="lineno"> 6046</span>  }</div> +<div class="line"><a name="l06047"></a><span class="lineno"> 6047</span>  stbi__skip(s, pad);</div> +<div class="line"><a name="l06048"></a><span class="lineno"> 6048</span>  }</div> +<div class="line"><a name="l06049"></a><span class="lineno"> 6049</span>  }</div> +<div class="line"><a name="l06050"></a><span class="lineno"> 6050</span> </div> +<div class="line"><a name="l06051"></a><span class="lineno"> 6051</span>  <span class="comment">// if alpha channel is all 0s, replace with all 255s</span></div> +<div class="line"><a name="l06052"></a><span class="lineno"> 6052</span>  <span class="keywordflow">if</span> (target == 4 && all_a == 0)</div> +<div class="line"><a name="l06053"></a><span class="lineno"> 6053</span>  <span class="keywordflow">for</span> (i = 4 * s->img_x * s->img_y - 1; i >= 0; i -= 4)</div> +<div class="line"><a name="l06054"></a><span class="lineno"> 6054</span>  out[i] = 255;</div> +<div class="line"><a name="l06055"></a><span class="lineno"> 6055</span> </div> +<div class="line"><a name="l06056"></a><span class="lineno"> 6056</span>  <span class="keywordflow">if</span> (flip_vertically) {</div> +<div class="line"><a name="l06057"></a><span class="lineno"> 6057</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> t;</div> +<div class="line"><a name="l06058"></a><span class="lineno"> 6058</span>  <span class="keywordflow">for</span> (j = 0; j<(int)s->img_y>> 1; ++j) {</div> +<div class="line"><a name="l06059"></a><span class="lineno"> 6059</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p1 = out + j * s->img_x * target;</div> +<div class="line"><a name="l06060"></a><span class="lineno"> 6060</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p2 = out + (s->img_y - 1 - j) * s->img_x * target;</div> +<div class="line"><a name="l06061"></a><span class="lineno"> 6061</span>  for (i = 0; i < (int)s->img_x * target; ++i) {</div> +<div class="line"><a name="l06062"></a><span class="lineno"> 6062</span>  t = p1[i], p1[i] = p2[i], p2[i] = t;</div> +<div class="line"><a name="l06063"></a><span class="lineno"> 6063</span>  }</div> +<div class="line"><a name="l06064"></a><span class="lineno"> 6064</span>  }</div> +<div class="line"><a name="l06065"></a><span class="lineno"> 6065</span>  }</div> +<div class="line"><a name="l06066"></a><span class="lineno"> 6066</span> </div> +<div class="line"><a name="l06067"></a><span class="lineno"> 6067</span>  <span class="keywordflow">if</span> (req_comp && req_comp != target) {</div> +<div class="line"><a name="l06068"></a><span class="lineno"> 6068</span>  out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y);</div> +<div class="line"><a name="l06069"></a><span class="lineno"> 6069</span>  <span class="keywordflow">if</span> (out == NULL)</div> +<div class="line"><a name="l06070"></a><span class="lineno"> 6070</span>  <span class="keywordflow">return</span> out; <span class="comment">// stbi__convert_format frees input on failure</span></div> +<div class="line"><a name="l06071"></a><span class="lineno"> 6071</span>  }</div> +<div class="line"><a name="l06072"></a><span class="lineno"> 6072</span> </div> +<div class="line"><a name="l06073"></a><span class="lineno"> 6073</span>  *x = s->img_x;</div> +<div class="line"><a name="l06074"></a><span class="lineno"> 6074</span>  *y = s->img_y;</div> +<div class="line"><a name="l06075"></a><span class="lineno"> 6075</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l06076"></a><span class="lineno"> 6076</span>  *comp = s->img_n;</div> +<div class="line"><a name="l06077"></a><span class="lineno"> 6077</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l06078"></a><span class="lineno"> 6078</span> }</div> +<div class="line"><a name="l06079"></a><span class="lineno"> 6079</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l06080"></a><span class="lineno"> 6080</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l06081"></a><span class="lineno"> 6081</span> <span class="comment">// Targa Truevision - TGA</span></div> +<div class="line"><a name="l06082"></a><span class="lineno"> 6082</span> <span class="comment">// by Jonathan Dummer</span></div> +<div class="line"><a name="l06083"></a><span class="lineno"> 6083</span> <span class="preprocessor">#ifndef STBI_NO_TGA</span></div> +<div class="line"><a name="l06084"></a><span class="lineno"> 6084</span> <span class="preprocessor"></span><span class="comment">// returns STBI_rgb or whatever, 0 on error</span></div> +<div class="line"><a name="l06085"></a><span class="lineno"> 6085</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_get_comp(<span class="keywordtype">int</span> bits_per_pixel, <span class="keywordtype">int</span> is_grey, <span class="keywordtype">int</span> *is_rgb16)</div> +<div class="line"><a name="l06086"></a><span class="lineno"> 6086</span> {</div> +<div class="line"><a name="l06087"></a><span class="lineno"> 6087</span>  <span class="comment">// only RGB or RGBA (incl. 16bit) or grey allowed</span></div> +<div class="line"><a name="l06088"></a><span class="lineno"> 6088</span>  <span class="keywordflow">if</span> (is_rgb16)</div> +<div class="line"><a name="l06089"></a><span class="lineno"> 6089</span>  *is_rgb16 = 0;</div> +<div class="line"><a name="l06090"></a><span class="lineno"> 6090</span>  <span class="keywordflow">switch</span> (bits_per_pixel) {</div> +<div class="line"><a name="l06091"></a><span class="lineno"> 6091</span>  <span class="keywordflow">case</span> 8:</div> +<div class="line"><a name="l06092"></a><span class="lineno"> 6092</span>  <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55bad1eb95ca1fa7706bf732bf35a0ed40aa">STBI_grey</a>;</div> +<div class="line"><a name="l06093"></a><span class="lineno"> 6093</span>  <span class="keywordflow">case</span> 16:</div> +<div class="line"><a name="l06094"></a><span class="lineno"> 6094</span>  <span class="keywordflow">if</span> (is_grey)</div> +<div class="line"><a name="l06095"></a><span class="lineno"> 6095</span>  <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baf5829d16d4cca6077465c5abd346e2f8">STBI_grey_alpha</a>;</div> +<div class="line"><a name="l06096"></a><span class="lineno"> 6096</span>  <span class="comment">// else: fall-through</span></div> +<div class="line"><a name="l06097"></a><span class="lineno"> 6097</span>  <span class="keywordflow">case</span> 15:</div> +<div class="line"><a name="l06098"></a><span class="lineno"> 6098</span>  <span class="keywordflow">if</span> (is_rgb16)</div> +<div class="line"><a name="l06099"></a><span class="lineno"> 6099</span>  *is_rgb16 = 1;</div> +<div class="line"><a name="l06100"></a><span class="lineno"> 6100</span>  <span class="keywordflow">return</span> <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a>;</div> +<div class="line"><a name="l06101"></a><span class="lineno"> 6101</span>  <span class="keywordflow">case</span> 24: <span class="comment">// fall-through</span></div> +<div class="line"><a name="l06102"></a><span class="lineno"> 6102</span>  <span class="keywordflow">case</span> 32:</div> +<div class="line"><a name="l06103"></a><span class="lineno"> 6103</span>  <span class="keywordflow">return</span> bits_per_pixel / 8;</div> +<div class="line"><a name="l06104"></a><span class="lineno"> 6104</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l06105"></a><span class="lineno"> 6105</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06106"></a><span class="lineno"> 6106</span>  }</div> +<div class="line"><a name="l06107"></a><span class="lineno"> 6107</span> }</div> +<div class="line"><a name="l06108"></a><span class="lineno"> 6108</span> </div> +<div class="line"><a name="l06109"></a><span class="lineno"> 6109</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l06110"></a><span class="lineno"> 6110</span> {</div> +<div class="line"><a name="l06111"></a><span class="lineno"> 6111</span>  <span class="keywordtype">int</span> tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel,</div> +<div class="line"><a name="l06112"></a><span class="lineno"> 6112</span>  tga_colormap_bpp;</div> +<div class="line"><a name="l06113"></a><span class="lineno"> 6113</span>  <span class="keywordtype">int</span> sz, tga_colormap_type;</div> +<div class="line"><a name="l06114"></a><span class="lineno"> 6114</span>  stbi__get8(s); <span class="comment">// discard Offset</span></div> +<div class="line"><a name="l06115"></a><span class="lineno"> 6115</span>  tga_colormap_type = stbi__get8(s); <span class="comment">// colormap type</span></div> +<div class="line"><a name="l06116"></a><span class="lineno"> 6116</span>  <span class="keywordflow">if</span> (tga_colormap_type > 1) {</div> +<div class="line"><a name="l06117"></a><span class="lineno"> 6117</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06118"></a><span class="lineno"> 6118</span>  <span class="keywordflow">return</span> 0; <span class="comment">// only RGB or indexed allowed</span></div> +<div class="line"><a name="l06119"></a><span class="lineno"> 6119</span>  }</div> +<div class="line"><a name="l06120"></a><span class="lineno"> 6120</span>  tga_image_type = stbi__get8(s); <span class="comment">// image type</span></div> +<div class="line"><a name="l06121"></a><span class="lineno"> 6121</span>  <span class="keywordflow">if</span> (tga_colormap_type == 1) { <span class="comment">// colormapped (paletted) image</span></div> +<div class="line"><a name="l06122"></a><span class="lineno"> 6122</span>  <span class="keywordflow">if</span> (tga_image_type != 1 && tga_image_type != 9) {</div> +<div class="line"><a name="l06123"></a><span class="lineno"> 6123</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06124"></a><span class="lineno"> 6124</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06125"></a><span class="lineno"> 6125</span>  }</div> +<div class="line"><a name="l06126"></a><span class="lineno"> 6126</span>  stbi__skip(</div> +<div class="line"><a name="l06127"></a><span class="lineno"> 6127</span>  s, 4); <span class="comment">// skip index of first colormap entry and number of entries</span></div> +<div class="line"><a name="l06128"></a><span class="lineno"> 6128</span>  sz = stbi__get8(s); <span class="comment">// check bits per palette color entry</span></div> +<div class="line"><a name="l06129"></a><span class="lineno"> 6129</span>  <span class="keywordflow">if</span> ((sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32)) {</div> +<div class="line"><a name="l06130"></a><span class="lineno"> 6130</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06131"></a><span class="lineno"> 6131</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06132"></a><span class="lineno"> 6132</span>  }</div> +<div class="line"><a name="l06133"></a><span class="lineno"> 6133</span>  stbi__skip(s, 4); <span class="comment">// skip image x and y origin</span></div> +<div class="line"><a name="l06134"></a><span class="lineno"> 6134</span>  tga_colormap_bpp = sz;</div> +<div class="line"><a name="l06135"></a><span class="lineno"> 6135</span>  } <span class="keywordflow">else</span> { <span class="comment">// "normal" image w/o colormap - only RGB or grey allowed, +/- RLE</span></div> +<div class="line"><a name="l06136"></a><span class="lineno"> 6136</span>  <span class="keywordflow">if</span> ((tga_image_type != 2) && (tga_image_type != 3) &&</div> +<div class="line"><a name="l06137"></a><span class="lineno"> 6137</span>  (tga_image_type != 10) && (tga_image_type != 11)) {</div> +<div class="line"><a name="l06138"></a><span class="lineno"> 6138</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06139"></a><span class="lineno"> 6139</span>  <span class="keywordflow">return</span> 0; <span class="comment">// only RGB or grey allowed, +/- RLE</span></div> +<div class="line"><a name="l06140"></a><span class="lineno"> 6140</span>  }</div> +<div class="line"><a name="l06141"></a><span class="lineno"> 6141</span>  stbi__skip(s, 9); <span class="comment">// skip colormap specification and image x/y origin</span></div> +<div class="line"><a name="l06142"></a><span class="lineno"> 6142</span>  tga_colormap_bpp = 0;</div> +<div class="line"><a name="l06143"></a><span class="lineno"> 6143</span>  }</div> +<div class="line"><a name="l06144"></a><span class="lineno"> 6144</span>  tga_w = stbi__get16le(s);</div> +<div class="line"><a name="l06145"></a><span class="lineno"> 6145</span>  <span class="keywordflow">if</span> (tga_w < 1) {</div> +<div class="line"><a name="l06146"></a><span class="lineno"> 6146</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06147"></a><span class="lineno"> 6147</span>  <span class="keywordflow">return</span> 0; <span class="comment">// test width</span></div> +<div class="line"><a name="l06148"></a><span class="lineno"> 6148</span>  }</div> +<div class="line"><a name="l06149"></a><span class="lineno"> 6149</span>  tga_h = stbi__get16le(s);</div> +<div class="line"><a name="l06150"></a><span class="lineno"> 6150</span>  <span class="keywordflow">if</span> (tga_h < 1) {</div> +<div class="line"><a name="l06151"></a><span class="lineno"> 6151</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06152"></a><span class="lineno"> 6152</span>  <span class="keywordflow">return</span> 0; <span class="comment">// test height</span></div> +<div class="line"><a name="l06153"></a><span class="lineno"> 6153</span>  }</div> +<div class="line"><a name="l06154"></a><span class="lineno"> 6154</span>  tga_bits_per_pixel = stbi__get8(s); <span class="comment">// bits per pixel</span></div> +<div class="line"><a name="l06155"></a><span class="lineno"> 6155</span>  stbi__get8(s); <span class="comment">// ignore alpha bits</span></div> +<div class="line"><a name="l06156"></a><span class="lineno"> 6156</span>  <span class="keywordflow">if</span> (tga_colormap_bpp != 0) {</div> +<div class="line"><a name="l06157"></a><span class="lineno"> 6157</span>  <span class="keywordflow">if</span> ((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) {</div> +<div class="line"><a name="l06158"></a><span class="lineno"> 6158</span>  <span class="comment">// when using a colormap, tga_bits_per_pixel is the size of the</span></div> +<div class="line"><a name="l06159"></a><span class="lineno"> 6159</span>  <span class="comment">// indexes I don't think anything but 8 or 16bit indexes makes sense</span></div> +<div class="line"><a name="l06160"></a><span class="lineno"> 6160</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06161"></a><span class="lineno"> 6161</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06162"></a><span class="lineno"> 6162</span>  }</div> +<div class="line"><a name="l06163"></a><span class="lineno"> 6163</span>  tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL);</div> +<div class="line"><a name="l06164"></a><span class="lineno"> 6164</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06165"></a><span class="lineno"> 6165</span>  tga_comp = stbi__tga_get_comp(</div> +<div class="line"><a name="l06166"></a><span class="lineno"> 6166</span>  tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11),</div> +<div class="line"><a name="l06167"></a><span class="lineno"> 6167</span>  NULL);</div> +<div class="line"><a name="l06168"></a><span class="lineno"> 6168</span>  }</div> +<div class="line"><a name="l06169"></a><span class="lineno"> 6169</span>  <span class="keywordflow">if</span> (!tga_comp) {</div> +<div class="line"><a name="l06170"></a><span class="lineno"> 6170</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06171"></a><span class="lineno"> 6171</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06172"></a><span class="lineno"> 6172</span>  }</div> +<div class="line"><a name="l06173"></a><span class="lineno"> 6173</span>  <span class="keywordflow">if</span> (x)</div> +<div class="line"><a name="l06174"></a><span class="lineno"> 6174</span>  *x = tga_w;</div> +<div class="line"><a name="l06175"></a><span class="lineno"> 6175</span>  <span class="keywordflow">if</span> (y)</div> +<div class="line"><a name="l06176"></a><span class="lineno"> 6176</span>  *y = tga_h;</div> +<div class="line"><a name="l06177"></a><span class="lineno"> 6177</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l06178"></a><span class="lineno"> 6178</span>  *comp = tga_comp;</div> +<div class="line"><a name="l06179"></a><span class="lineno"> 6179</span>  <span class="keywordflow">return</span> 1; <span class="comment">// seems to have passed everything</span></div> +<div class="line"><a name="l06180"></a><span class="lineno"> 6180</span> }</div> +<div class="line"><a name="l06181"></a><span class="lineno"> 6181</span> </div> +<div class="line"><a name="l06182"></a><span class="lineno"> 6182</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__tga_test(stbi__context *s)</div> +<div class="line"><a name="l06183"></a><span class="lineno"> 6183</span> {</div> +<div class="line"><a name="l06184"></a><span class="lineno"> 6184</span>  <span class="keywordtype">int</span> res = 0;</div> +<div class="line"><a name="l06185"></a><span class="lineno"> 6185</span>  <span class="keywordtype">int</span> sz, tga_color_type;</div> +<div class="line"><a name="l06186"></a><span class="lineno"> 6186</span>  stbi__get8(s); <span class="comment">// discard Offset</span></div> +<div class="line"><a name="l06187"></a><span class="lineno"> 6187</span>  tga_color_type = stbi__get8(s); <span class="comment">// color type</span></div> +<div class="line"><a name="l06188"></a><span class="lineno"> 6188</span>  <span class="keywordflow">if</span> (tga_color_type > 1)</div> +<div class="line"><a name="l06189"></a><span class="lineno"> 6189</span>  <span class="keywordflow">goto</span> errorEnd; <span class="comment">// only RGB or indexed allowed</span></div> +<div class="line"><a name="l06190"></a><span class="lineno"> 6190</span>  sz = stbi__get8(s); <span class="comment">// image type</span></div> +<div class="line"><a name="l06191"></a><span class="lineno"> 6191</span>  <span class="keywordflow">if</span> (tga_color_type == 1) { <span class="comment">// colormapped (paletted) image</span></div> +<div class="line"><a name="l06192"></a><span class="lineno"> 6192</span>  <span class="keywordflow">if</span> (sz != 1 && sz != 9)</div> +<div class="line"><a name="l06193"></a><span class="lineno"> 6193</span>  <span class="keywordflow">goto</span> errorEnd; <span class="comment">// colortype 1 demands image type 1 or 9</span></div> +<div class="line"><a name="l06194"></a><span class="lineno"> 6194</span>  stbi__skip(</div> +<div class="line"><a name="l06195"></a><span class="lineno"> 6195</span>  s, 4); <span class="comment">// skip index of first colormap entry and number of entries</span></div> +<div class="line"><a name="l06196"></a><span class="lineno"> 6196</span>  sz = stbi__get8(s); <span class="comment">// check bits per palette color entry</span></div> +<div class="line"><a name="l06197"></a><span class="lineno"> 6197</span>  <span class="keywordflow">if</span> ((sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32))</div> +<div class="line"><a name="l06198"></a><span class="lineno"> 6198</span>  <span class="keywordflow">goto</span> errorEnd;</div> +<div class="line"><a name="l06199"></a><span class="lineno"> 6199</span>  stbi__skip(s, 4); <span class="comment">// skip image x and y origin</span></div> +<div class="line"><a name="l06200"></a><span class="lineno"> 6200</span>  } <span class="keywordflow">else</span> { <span class="comment">// "normal" image w/o colormap</span></div> +<div class="line"><a name="l06201"></a><span class="lineno"> 6201</span>  <span class="keywordflow">if</span> ((sz != 2) && (sz != 3) && (sz != 10) && (sz != 11))</div> +<div class="line"><a name="l06202"></a><span class="lineno"> 6202</span>  <span class="keywordflow">goto</span> errorEnd; <span class="comment">// only RGB or grey allowed, +/- RLE</span></div> +<div class="line"><a name="l06203"></a><span class="lineno"> 6203</span>  stbi__skip(s, 9); <span class="comment">// skip colormap specification and image x/y origin</span></div> +<div class="line"><a name="l06204"></a><span class="lineno"> 6204</span>  }</div> +<div class="line"><a name="l06205"></a><span class="lineno"> 6205</span>  <span class="keywordflow">if</span> (stbi__get16le(s) < 1)</div> +<div class="line"><a name="l06206"></a><span class="lineno"> 6206</span>  <span class="keywordflow">goto</span> errorEnd; <span class="comment">// test width</span></div> +<div class="line"><a name="l06207"></a><span class="lineno"> 6207</span>  <span class="keywordflow">if</span> (stbi__get16le(s) < 1)</div> +<div class="line"><a name="l06208"></a><span class="lineno"> 6208</span>  <span class="keywordflow">goto</span> errorEnd; <span class="comment">// test height</span></div> +<div class="line"><a name="l06209"></a><span class="lineno"> 6209</span>  sz = stbi__get8(s); <span class="comment">// bits per pixel</span></div> +<div class="line"><a name="l06210"></a><span class="lineno"> 6210</span>  <span class="keywordflow">if</span> ((tga_color_type == 1) && (sz != 8) && (sz != 16))</div> +<div class="line"><a name="l06211"></a><span class="lineno"> 6211</span>  <span class="keywordflow">goto</span> errorEnd; <span class="comment">// for colormapped images, bpp is size of an index</span></div> +<div class="line"><a name="l06212"></a><span class="lineno"> 6212</span>  <span class="keywordflow">if</span> ((sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32))</div> +<div class="line"><a name="l06213"></a><span class="lineno"> 6213</span>  <span class="keywordflow">goto</span> errorEnd;</div> <div class="line"><a name="l06214"></a><span class="lineno"> 6214</span> </div> -<div class="line"><a name="l06215"></a><span class="lineno"> 6215</span>  <span class="keywordflow">if</span> (oldcode >= 0) {</div> -<div class="line"><a name="l06216"></a><span class="lineno"> 6216</span>  p = &g->codes[avail++];</div> -<div class="line"><a name="l06217"></a><span class="lineno"> 6217</span>  <span class="keywordflow">if</span> (avail > 4096) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too many codes"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06218"></a><span class="lineno"> 6218</span>  p->prefix = (stbi__int16) oldcode;</div> -<div class="line"><a name="l06219"></a><span class="lineno"> 6219</span>  p->first = g->codes[oldcode].first;</div> -<div class="line"><a name="l06220"></a><span class="lineno"> 6220</span>  p->suffix = (code == avail) ? p->first : g->codes[code].first;</div> -<div class="line"><a name="l06221"></a><span class="lineno"> 6221</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (code == avail)</div> -<div class="line"><a name="l06222"></a><span class="lineno"> 6222</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"illegal code in raster"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06223"></a><span class="lineno"> 6223</span> </div> -<div class="line"><a name="l06224"></a><span class="lineno"> 6224</span>  stbi__out_gif_code(g, (stbi__uint16) code);</div> -<div class="line"><a name="l06225"></a><span class="lineno"> 6225</span> </div> -<div class="line"><a name="l06226"></a><span class="lineno"> 6226</span>  <span class="keywordflow">if</span> ((avail & codemask) == 0 && avail <= 0x0FFF) {</div> -<div class="line"><a name="l06227"></a><span class="lineno"> 6227</span>  codesize++;</div> -<div class="line"><a name="l06228"></a><span class="lineno"> 6228</span>  codemask = (1 << codesize) - 1;</div> -<div class="line"><a name="l06229"></a><span class="lineno"> 6229</span>  }</div> -<div class="line"><a name="l06230"></a><span class="lineno"> 6230</span> </div> -<div class="line"><a name="l06231"></a><span class="lineno"> 6231</span>  oldcode = code;</div> -<div class="line"><a name="l06232"></a><span class="lineno"> 6232</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06233"></a><span class="lineno"> 6233</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"illegal code in raster"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06234"></a><span class="lineno"> 6234</span>  }</div> -<div class="line"><a name="l06235"></a><span class="lineno"> 6235</span>  }</div> -<div class="line"><a name="l06236"></a><span class="lineno"> 6236</span>  }</div> -<div class="line"><a name="l06237"></a><span class="lineno"> 6237</span> }</div> -<div class="line"><a name="l06238"></a><span class="lineno"> 6238</span> </div> -<div class="line"><a name="l06239"></a><span class="lineno"> 6239</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__fill_gif_background(stbi__gif *g, <span class="keywordtype">int</span> x0, <span class="keywordtype">int</span> y0, <span class="keywordtype">int</span> x1, <span class="keywordtype">int</span> y1)</div> -<div class="line"><a name="l06240"></a><span class="lineno"> 6240</span> {</div> -<div class="line"><a name="l06241"></a><span class="lineno"> 6241</span>  <span class="keywordtype">int</span> x, y;</div> -<div class="line"><a name="l06242"></a><span class="lineno"> 6242</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *c = g->pal[g->bgindex];</div> -<div class="line"><a name="l06243"></a><span class="lineno"> 6243</span>  <span class="keywordflow">for</span> (y = y0; y < y1; y += 4 * g->w) {</div> -<div class="line"><a name="l06244"></a><span class="lineno"> 6244</span>  <span class="keywordflow">for</span> (x = x0; x < x1; x += 4) {</div> -<div class="line"><a name="l06245"></a><span class="lineno"> 6245</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = &g->out[y + x];</div> -<div class="line"><a name="l06246"></a><span class="lineno"> 6246</span>  p[0] = c[2];</div> -<div class="line"><a name="l06247"></a><span class="lineno"> 6247</span>  p[1] = c[1];</div> -<div class="line"><a name="l06248"></a><span class="lineno"> 6248</span>  p[2] = c[0];</div> -<div class="line"><a name="l06249"></a><span class="lineno"> 6249</span>  p[3] = 0;</div> -<div class="line"><a name="l06250"></a><span class="lineno"> 6250</span>  }</div> -<div class="line"><a name="l06251"></a><span class="lineno"> 6251</span>  }</div> -<div class="line"><a name="l06252"></a><span class="lineno"> 6252</span> }</div> -<div class="line"><a name="l06253"></a><span class="lineno"> 6253</span> </div> -<div class="line"><a name="l06254"></a><span class="lineno"> 6254</span> <span class="comment">// this function is designed to support animated gifs, although stb_image doesn't support it</span></div> -<div class="line"><a name="l06255"></a><span class="lineno"> 6255</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__gif_load_next(stbi__context *s, stbi__gif *g, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp)</div> -<div class="line"><a name="l06256"></a><span class="lineno"> 6256</span> {</div> -<div class="line"><a name="l06257"></a><span class="lineno"> 6257</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l06258"></a><span class="lineno"> 6258</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *prev_out = 0;</div> -<div class="line"><a name="l06259"></a><span class="lineno"> 6259</span> </div> -<div class="line"><a name="l06260"></a><span class="lineno"> 6260</span>  <span class="keywordflow">if</span> (g->out == 0 && !stbi__gif_header(s, g, comp,0))</div> -<div class="line"><a name="l06261"></a><span class="lineno"> 6261</span>  <span class="keywordflow">return</span> 0; <span class="comment">// stbi__g_failure_reason set by stbi__gif_header</span></div> -<div class="line"><a name="l06262"></a><span class="lineno"> 6262</span> </div> -<div class="line"><a name="l06263"></a><span class="lineno"> 6263</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(g->w, g->h, 4, 0))</div> -<div class="line"><a name="l06264"></a><span class="lineno"> 6264</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"GIF too large"</span>);</div> -<div class="line"><a name="l06265"></a><span class="lineno"> 6265</span> </div> -<div class="line"><a name="l06266"></a><span class="lineno"> 6266</span>  prev_out = g->out;</div> -<div class="line"><a name="l06267"></a><span class="lineno"> 6267</span>  g->out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(4, g->w, g->h, 0);</div> -<div class="line"><a name="l06268"></a><span class="lineno"> 6268</span>  <span class="keywordflow">if</span> (g->out == 0) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l06269"></a><span class="lineno"> 6269</span> </div> -<div class="line"><a name="l06270"></a><span class="lineno"> 6270</span>  <span class="keywordflow">switch</span> ((g->eflags & 0x1C) >> 2) {</div> -<div class="line"><a name="l06271"></a><span class="lineno"> 6271</span>  <span class="keywordflow">case</span> 0: <span class="comment">// unspecified (also always used on 1st frame)</span></div> -<div class="line"><a name="l06272"></a><span class="lineno"> 6272</span>  stbi__fill_gif_background(g, 0, 0, 4 * g->w, 4 * g->w * g->h);</div> -<div class="line"><a name="l06273"></a><span class="lineno"> 6273</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06274"></a><span class="lineno"> 6274</span>  <span class="keywordflow">case</span> 1: <span class="comment">// do not dispose</span></div> -<div class="line"><a name="l06275"></a><span class="lineno"> 6275</span>  <span class="keywordflow">if</span> (prev_out) memcpy(g->out, prev_out, 4 * g->w * g->h);</div> -<div class="line"><a name="l06276"></a><span class="lineno"> 6276</span>  g->old_out = prev_out;</div> -<div class="line"><a name="l06277"></a><span class="lineno"> 6277</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06278"></a><span class="lineno"> 6278</span>  <span class="keywordflow">case</span> 2: <span class="comment">// dispose to background</span></div> -<div class="line"><a name="l06279"></a><span class="lineno"> 6279</span>  <span class="keywordflow">if</span> (prev_out) memcpy(g->out, prev_out, 4 * g->w * g->h);</div> -<div class="line"><a name="l06280"></a><span class="lineno"> 6280</span>  stbi__fill_gif_background(g, g->start_x, g->start_y, g->max_x, g->max_y);</div> -<div class="line"><a name="l06281"></a><span class="lineno"> 6281</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06282"></a><span class="lineno"> 6282</span>  <span class="keywordflow">case</span> 3: <span class="comment">// dispose to previous</span></div> -<div class="line"><a name="l06283"></a><span class="lineno"> 6283</span>  <span class="keywordflow">if</span> (g->old_out) {</div> -<div class="line"><a name="l06284"></a><span class="lineno"> 6284</span>  <span class="keywordflow">for</span> (i = g->start_y; i < g->max_y; i += 4 * g->w)</div> -<div class="line"><a name="l06285"></a><span class="lineno"> 6285</span>  memcpy(&g->out[i + g->start_x], &g->old_out[i + g->start_x], g->max_x - g->start_x);</div> -<div class="line"><a name="l06286"></a><span class="lineno"> 6286</span>  }</div> -<div class="line"><a name="l06287"></a><span class="lineno"> 6287</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06288"></a><span class="lineno"> 6288</span>  }</div> -<div class="line"><a name="l06289"></a><span class="lineno"> 6289</span> </div> -<div class="line"><a name="l06290"></a><span class="lineno"> 6290</span>  <span class="keywordflow">for</span> (;;) {</div> -<div class="line"><a name="l06291"></a><span class="lineno"> 6291</span>  <span class="keywordflow">switch</span> (stbi__get8(s)) {</div> -<div class="line"><a name="l06292"></a><span class="lineno"> 6292</span>  <span class="keywordflow">case</span> 0x2C: <span class="comment">/* Image Descriptor */</span></div> -<div class="line"><a name="l06293"></a><span class="lineno"> 6293</span>  {</div> -<div class="line"><a name="l06294"></a><span class="lineno"> 6294</span>  <span class="keywordtype">int</span> prev_trans = -1;</div> -<div class="line"><a name="l06295"></a><span class="lineno"> 6295</span>  stbi__int32 x, y, w, h;</div> -<div class="line"><a name="l06296"></a><span class="lineno"> 6296</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *o;</div> +<div class="line"><a name="l06215"></a><span class="lineno"> 6215</span>  res = 1; <span class="comment">// if we got this far, everything's good and we can return 1</span></div> +<div class="line"><a name="l06216"></a><span class="lineno"> 6216</span>  <span class="comment">// instead of 0</span></div> +<div class="line"><a name="l06217"></a><span class="lineno"> 6217</span> </div> +<div class="line"><a name="l06218"></a><span class="lineno"> 6218</span> errorEnd:</div> +<div class="line"><a name="l06219"></a><span class="lineno"> 6219</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06220"></a><span class="lineno"> 6220</span>  <span class="keywordflow">return</span> res;</div> +<div class="line"><a name="l06221"></a><span class="lineno"> 6221</span> }</div> +<div class="line"><a name="l06222"></a><span class="lineno"> 6222</span> </div> +<div class="line"><a name="l06223"></a><span class="lineno"> 6223</span> <span class="comment">// read 16bit value and convert to 24bit RGB</span></div> +<div class="line"><a name="l06224"></a><span class="lineno"> 6224</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__tga_read_rgb16(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out)</div> +<div class="line"><a name="l06225"></a><span class="lineno"> 6225</span> {</div> +<div class="line"><a name="l06226"></a><span class="lineno"> 6226</span>  stbi__uint16 px = (stbi__uint16)stbi__get16le(s);</div> +<div class="line"><a name="l06227"></a><span class="lineno"> 6227</span>  stbi__uint16 fiveBitMask = 31;</div> +<div class="line"><a name="l06228"></a><span class="lineno"> 6228</span>  <span class="comment">// we have 3 channels with 5bits each</span></div> +<div class="line"><a name="l06229"></a><span class="lineno"> 6229</span>  <span class="keywordtype">int</span> r = (px >> 10) & fiveBitMask;</div> +<div class="line"><a name="l06230"></a><span class="lineno"> 6230</span>  <span class="keywordtype">int</span> g = (px >> 5) & fiveBitMask;</div> +<div class="line"><a name="l06231"></a><span class="lineno"> 6231</span>  <span class="keywordtype">int</span> b = px & fiveBitMask;</div> +<div class="line"><a name="l06232"></a><span class="lineno"> 6232</span>  <span class="comment">// Note that this saves the data in RGB(A) order, so it doesn't need to be</span></div> +<div class="line"><a name="l06233"></a><span class="lineno"> 6233</span>  <span class="comment">// swapped later</span></div> +<div class="line"><a name="l06234"></a><span class="lineno"> 6234</span>  out[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((r * 255) / 31);</div> +<div class="line"><a name="l06235"></a><span class="lineno"> 6235</span>  out[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((g * 255) / 31);</div> +<div class="line"><a name="l06236"></a><span class="lineno"> 6236</span>  out[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)((b * 255) / 31);</div> +<div class="line"><a name="l06237"></a><span class="lineno"> 6237</span> </div> +<div class="line"><a name="l06238"></a><span class="lineno"> 6238</span>  <span class="comment">// some people claim that the most significant bit might be used for alpha</span></div> +<div class="line"><a name="l06239"></a><span class="lineno"> 6239</span>  <span class="comment">// (possibly if an alpha-bit is set in the "image descriptor byte")</span></div> +<div class="line"><a name="l06240"></a><span class="lineno"> 6240</span>  <span class="comment">// but that only made 16bit test images completely translucent..</span></div> +<div class="line"><a name="l06241"></a><span class="lineno"> 6241</span>  <span class="comment">// so let's treat all 15 and 16bit TGAs as RGB with no alpha.</span></div> +<div class="line"><a name="l06242"></a><span class="lineno"> 6242</span> }</div> +<div class="line"><a name="l06243"></a><span class="lineno"> 6243</span> </div> +<div class="line"><a name="l06244"></a><span class="lineno"> 6244</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__tga_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l06245"></a><span class="lineno"> 6245</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l06246"></a><span class="lineno"> 6246</span> {</div> +<div class="line"><a name="l06247"></a><span class="lineno"> 6247</span>  <span class="comment">// read in the TGA header stuff</span></div> +<div class="line"><a name="l06248"></a><span class="lineno"> 6248</span>  <span class="keywordtype">int</span> tga_offset = stbi__get8(s);</div> +<div class="line"><a name="l06249"></a><span class="lineno"> 6249</span>  <span class="keywordtype">int</span> tga_indexed = stbi__get8(s);</div> +<div class="line"><a name="l06250"></a><span class="lineno"> 6250</span>  <span class="keywordtype">int</span> tga_image_type = stbi__get8(s);</div> +<div class="line"><a name="l06251"></a><span class="lineno"> 6251</span>  <span class="keywordtype">int</span> tga_is_RLE = 0;</div> +<div class="line"><a name="l06252"></a><span class="lineno"> 6252</span>  <span class="keywordtype">int</span> tga_palette_start = stbi__get16le(s);</div> +<div class="line"><a name="l06253"></a><span class="lineno"> 6253</span>  <span class="keywordtype">int</span> tga_palette_len = stbi__get16le(s);</div> +<div class="line"><a name="l06254"></a><span class="lineno"> 6254</span>  <span class="keywordtype">int</span> tga_palette_bits = stbi__get8(s);</div> +<div class="line"><a name="l06255"></a><span class="lineno"> 6255</span>  <span class="keywordtype">int</span> tga_x_origin = stbi__get16le(s);</div> +<div class="line"><a name="l06256"></a><span class="lineno"> 6256</span>  <span class="keywordtype">int</span> tga_y_origin = stbi__get16le(s);</div> +<div class="line"><a name="l06257"></a><span class="lineno"> 6257</span>  <span class="keywordtype">int</span> tga_width = stbi__get16le(s);</div> +<div class="line"><a name="l06258"></a><span class="lineno"> 6258</span>  <span class="keywordtype">int</span> tga_height = stbi__get16le(s);</div> +<div class="line"><a name="l06259"></a><span class="lineno"> 6259</span>  <span class="keywordtype">int</span> tga_bits_per_pixel = stbi__get8(s);</div> +<div class="line"><a name="l06260"></a><span class="lineno"> 6260</span>  <span class="keywordtype">int</span> tga_comp, tga_rgb16 = 0;</div> +<div class="line"><a name="l06261"></a><span class="lineno"> 6261</span>  <span class="keywordtype">int</span> tga_inverted = stbi__get8(s);</div> +<div class="line"><a name="l06262"></a><span class="lineno"> 6262</span>  <span class="comment">// int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused</span></div> +<div class="line"><a name="l06263"></a><span class="lineno"> 6263</span>  <span class="comment">// (useless?)</span></div> +<div class="line"><a name="l06264"></a><span class="lineno"> 6264</span>  <span class="comment">// image data</span></div> +<div class="line"><a name="l06265"></a><span class="lineno"> 6265</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tga_data;</div> +<div class="line"><a name="l06266"></a><span class="lineno"> 6266</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tga_palette = NULL;</div> +<div class="line"><a name="l06267"></a><span class="lineno"> 6267</span>  <span class="keywordtype">int</span> i, j;</div> +<div class="line"><a name="l06268"></a><span class="lineno"> 6268</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> raw_data[4] = {0};</div> +<div class="line"><a name="l06269"></a><span class="lineno"> 6269</span>  <span class="keywordtype">int</span> RLE_count = 0;</div> +<div class="line"><a name="l06270"></a><span class="lineno"> 6270</span>  <span class="keywordtype">int</span> RLE_repeating = 0;</div> +<div class="line"><a name="l06271"></a><span class="lineno"> 6271</span>  <span class="keywordtype">int</span> read_next_pixel = 1;</div> +<div class="line"><a name="l06272"></a><span class="lineno"> 6272</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l06273"></a><span class="lineno"> 6273</span> </div> +<div class="line"><a name="l06274"></a><span class="lineno"> 6274</span>  <span class="comment">// do a tiny bit of precessing</span></div> +<div class="line"><a name="l06275"></a><span class="lineno"> 6275</span>  <span class="keywordflow">if</span> (tga_image_type >= 8) {</div> +<div class="line"><a name="l06276"></a><span class="lineno"> 6276</span>  tga_image_type -= 8;</div> +<div class="line"><a name="l06277"></a><span class="lineno"> 6277</span>  tga_is_RLE = 1;</div> +<div class="line"><a name="l06278"></a><span class="lineno"> 6278</span>  }</div> +<div class="line"><a name="l06279"></a><span class="lineno"> 6279</span>  tga_inverted = 1 - ((tga_inverted >> 5) & 1);</div> +<div class="line"><a name="l06280"></a><span class="lineno"> 6280</span> </div> +<div class="line"><a name="l06281"></a><span class="lineno"> 6281</span>  <span class="comment">// If I'm paletted, then I'll use the number of bits from the palette</span></div> +<div class="line"><a name="l06282"></a><span class="lineno"> 6282</span>  <span class="keywordflow">if</span> (tga_indexed)</div> +<div class="line"><a name="l06283"></a><span class="lineno"> 6283</span>  tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16);</div> +<div class="line"><a name="l06284"></a><span class="lineno"> 6284</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l06285"></a><span class="lineno"> 6285</span>  tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3),</div> +<div class="line"><a name="l06286"></a><span class="lineno"> 6286</span>  &tga_rgb16);</div> +<div class="line"><a name="l06287"></a><span class="lineno"> 6287</span> </div> +<div class="line"><a name="l06288"></a><span class="lineno"> 6288</span>  <span class="keywordflow">if</span> (!tga_comp) <span class="comment">// shouldn't really happen, stbi__tga_test() should have</span></div> +<div class="line"><a name="l06289"></a><span class="lineno"> 6289</span>  <span class="comment">// ensured basic consistency</span></div> +<div class="line"><a name="l06290"></a><span class="lineno"> 6290</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>, <span class="stringliteral">"Can't find out TGA pixelformat"</span>);</div> +<div class="line"><a name="l06291"></a><span class="lineno"> 6291</span> </div> +<div class="line"><a name="l06292"></a><span class="lineno"> 6292</span>  <span class="comment">// tga info</span></div> +<div class="line"><a name="l06293"></a><span class="lineno"> 6293</span>  *x = tga_width;</div> +<div class="line"><a name="l06294"></a><span class="lineno"> 6294</span>  *y = tga_height;</div> +<div class="line"><a name="l06295"></a><span class="lineno"> 6295</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l06296"></a><span class="lineno"> 6296</span>  *comp = tga_comp;</div> <div class="line"><a name="l06297"></a><span class="lineno"> 6297</span> </div> -<div class="line"><a name="l06298"></a><span class="lineno"> 6298</span>  x = stbi__get16le(s);</div> -<div class="line"><a name="l06299"></a><span class="lineno"> 6299</span>  y = stbi__get16le(s);</div> -<div class="line"><a name="l06300"></a><span class="lineno"> 6300</span>  w = stbi__get16le(s);</div> -<div class="line"><a name="l06301"></a><span class="lineno"> 6301</span>  h = stbi__get16le(s);</div> -<div class="line"><a name="l06302"></a><span class="lineno"> 6302</span>  <span class="keywordflow">if</span> (((x + w) > (g->w)) || ((y + h) > (g->h)))</div> -<div class="line"><a name="l06303"></a><span class="lineno"> 6303</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad Image Descriptor"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06304"></a><span class="lineno"> 6304</span> </div> -<div class="line"><a name="l06305"></a><span class="lineno"> 6305</span>  g->line_size = g->w * 4;</div> -<div class="line"><a name="l06306"></a><span class="lineno"> 6306</span>  g->start_x = x * 4;</div> -<div class="line"><a name="l06307"></a><span class="lineno"> 6307</span>  g->start_y = y * g->line_size;</div> -<div class="line"><a name="l06308"></a><span class="lineno"> 6308</span>  g->max_x = g->start_x + w * 4;</div> -<div class="line"><a name="l06309"></a><span class="lineno"> 6309</span>  g->max_y = g->start_y + h * g->line_size;</div> -<div class="line"><a name="l06310"></a><span class="lineno"> 6310</span>  g->cur_x = g->start_x;</div> -<div class="line"><a name="l06311"></a><span class="lineno"> 6311</span>  g->cur_y = g->start_y;</div> -<div class="line"><a name="l06312"></a><span class="lineno"> 6312</span> </div> -<div class="line"><a name="l06313"></a><span class="lineno"> 6313</span>  g->lflags = stbi__get8(s);</div> -<div class="line"><a name="l06314"></a><span class="lineno"> 6314</span> </div> -<div class="line"><a name="l06315"></a><span class="lineno"> 6315</span>  <span class="keywordflow">if</span> (g->lflags & 0x40) {</div> -<div class="line"><a name="l06316"></a><span class="lineno"> 6316</span>  g->step = 8 * g->line_size; <span class="comment">// first interlaced spacing</span></div> -<div class="line"><a name="l06317"></a><span class="lineno"> 6317</span>  g->parse = 3;</div> -<div class="line"><a name="l06318"></a><span class="lineno"> 6318</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06319"></a><span class="lineno"> 6319</span>  g->step = g->line_size;</div> -<div class="line"><a name="l06320"></a><span class="lineno"> 6320</span>  g->parse = 0;</div> -<div class="line"><a name="l06321"></a><span class="lineno"> 6321</span>  }</div> -<div class="line"><a name="l06322"></a><span class="lineno"> 6322</span> </div> -<div class="line"><a name="l06323"></a><span class="lineno"> 6323</span>  <span class="keywordflow">if</span> (g->lflags & 0x80) {</div> -<div class="line"><a name="l06324"></a><span class="lineno"> 6324</span>  stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1);</div> -<div class="line"><a name="l06325"></a><span class="lineno"> 6325</span>  g->color_table = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) g->lpal;</div> -<div class="line"><a name="l06326"></a><span class="lineno"> 6326</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (g->flags & 0x80) {</div> -<div class="line"><a name="l06327"></a><span class="lineno"> 6327</span>  <span class="keywordflow">if</span> (g->transparent >= 0 && (g->eflags & 0x01)) {</div> -<div class="line"><a name="l06328"></a><span class="lineno"> 6328</span>  prev_trans = g->pal[g->transparent][3];</div> -<div class="line"><a name="l06329"></a><span class="lineno"> 6329</span>  g->pal[g->transparent][3] = 0;</div> -<div class="line"><a name="l06330"></a><span class="lineno"> 6330</span>  }</div> -<div class="line"><a name="l06331"></a><span class="lineno"> 6331</span>  g->color_table = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) g->pal;</div> -<div class="line"><a name="l06332"></a><span class="lineno"> 6332</span>  } <span class="keywordflow">else</span></div> -<div class="line"><a name="l06333"></a><span class="lineno"> 6333</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"missing color table"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06334"></a><span class="lineno"> 6334</span> </div> -<div class="line"><a name="l06335"></a><span class="lineno"> 6335</span>  o = stbi__process_gif_raster(s, g);</div> -<div class="line"><a name="l06336"></a><span class="lineno"> 6336</span>  <span class="keywordflow">if</span> (o == NULL) <span class="keywordflow">return</span> NULL;</div> -<div class="line"><a name="l06337"></a><span class="lineno"> 6337</span> </div> -<div class="line"><a name="l06338"></a><span class="lineno"> 6338</span>  <span class="keywordflow">if</span> (prev_trans != -1)</div> -<div class="line"><a name="l06339"></a><span class="lineno"> 6339</span>  g->pal[g->transparent][3] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) prev_trans;</div> -<div class="line"><a name="l06340"></a><span class="lineno"> 6340</span> </div> -<div class="line"><a name="l06341"></a><span class="lineno"> 6341</span>  <span class="keywordflow">return</span> o;</div> -<div class="line"><a name="l06342"></a><span class="lineno"> 6342</span>  }</div> -<div class="line"><a name="l06343"></a><span class="lineno"> 6343</span> </div> -<div class="line"><a name="l06344"></a><span class="lineno"> 6344</span>  <span class="keywordflow">case</span> 0x21: <span class="comment">// Comment Extension.</span></div> -<div class="line"><a name="l06345"></a><span class="lineno"> 6345</span>  {</div> -<div class="line"><a name="l06346"></a><span class="lineno"> 6346</span>  <span class="keywordtype">int</span> len;</div> -<div class="line"><a name="l06347"></a><span class="lineno"> 6347</span>  <span class="keywordflow">if</span> (stbi__get8(s) == 0xF9) { <span class="comment">// Graphic Control Extension.</span></div> -<div class="line"><a name="l06348"></a><span class="lineno"> 6348</span>  len = stbi__get8(s);</div> -<div class="line"><a name="l06349"></a><span class="lineno"> 6349</span>  <span class="keywordflow">if</span> (len == 4) {</div> -<div class="line"><a name="l06350"></a><span class="lineno"> 6350</span>  g->eflags = stbi__get8(s);</div> -<div class="line"><a name="l06351"></a><span class="lineno"> 6351</span>  g->delay = stbi__get16le(s);</div> -<div class="line"><a name="l06352"></a><span class="lineno"> 6352</span>  g->transparent = stbi__get8(s);</div> -<div class="line"><a name="l06353"></a><span class="lineno"> 6353</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06354"></a><span class="lineno"> 6354</span>  stbi__skip(s, len);</div> -<div class="line"><a name="l06355"></a><span class="lineno"> 6355</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06356"></a><span class="lineno"> 6356</span>  }</div> -<div class="line"><a name="l06357"></a><span class="lineno"> 6357</span>  }</div> -<div class="line"><a name="l06358"></a><span class="lineno"> 6358</span>  <span class="keywordflow">while</span> ((len = stbi__get8(s)) != 0)</div> -<div class="line"><a name="l06359"></a><span class="lineno"> 6359</span>  stbi__skip(s, len);</div> -<div class="line"><a name="l06360"></a><span class="lineno"> 6360</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06361"></a><span class="lineno"> 6361</span>  }</div> -<div class="line"><a name="l06362"></a><span class="lineno"> 6362</span> </div> -<div class="line"><a name="l06363"></a><span class="lineno"> 6363</span>  <span class="keywordflow">case</span> 0x3B: <span class="comment">// gif stream termination code</span></div> -<div class="line"><a name="l06364"></a><span class="lineno"> 6364</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) s; <span class="comment">// using '1' causes warning on some compilers</span></div> -<div class="line"><a name="l06365"></a><span class="lineno"> 6365</span> </div> -<div class="line"><a name="l06366"></a><span class="lineno"> 6366</span>  <span class="keywordflow">default</span>:</div> -<div class="line"><a name="l06367"></a><span class="lineno"> 6367</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unknown code"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> -<div class="line"><a name="l06368"></a><span class="lineno"> 6368</span>  }</div> -<div class="line"><a name="l06369"></a><span class="lineno"> 6369</span>  }</div> -<div class="line"><a name="l06370"></a><span class="lineno"> 6370</span> </div> -<div class="line"><a name="l06371"></a><span class="lineno"> 6371</span>  STBI_NOTUSED(req_comp);</div> -<div class="line"><a name="l06372"></a><span class="lineno"> 6372</span> }</div> -<div class="line"><a name="l06373"></a><span class="lineno"> 6373</span> </div> -<div class="line"><a name="l06374"></a><span class="lineno"> 6374</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__gif_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l06375"></a><span class="lineno"> 6375</span> {</div> -<div class="line"><a name="l06376"></a><span class="lineno"> 6376</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *u = 0;</div> -<div class="line"><a name="l06377"></a><span class="lineno"> 6377</span>  stbi__gif* g = (stbi__gif*) stbi__malloc(<span class="keyword">sizeof</span>(stbi__gif));</div> -<div class="line"><a name="l06378"></a><span class="lineno"> 6378</span>  memset(g, 0, <span class="keyword">sizeof</span>(*g));</div> -<div class="line"><a name="l06379"></a><span class="lineno"> 6379</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l06380"></a><span class="lineno"> 6380</span> </div> -<div class="line"><a name="l06381"></a><span class="lineno"> 6381</span>  u = stbi__gif_load_next(s, g, comp, req_comp);</div> -<div class="line"><a name="l06382"></a><span class="lineno"> 6382</span>  <span class="keywordflow">if</span> (u == (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) s) u = 0; <span class="comment">// end of animated gif marker</span></div> -<div class="line"><a name="l06383"></a><span class="lineno"> 6383</span>  <span class="keywordflow">if</span> (u) {</div> -<div class="line"><a name="l06384"></a><span class="lineno"> 6384</span>  *x = g->w;</div> -<div class="line"><a name="l06385"></a><span class="lineno"> 6385</span>  *y = g->h;</div> -<div class="line"><a name="l06386"></a><span class="lineno"> 6386</span>  <span class="keywordflow">if</span> (req_comp && req_comp != 4)</div> -<div class="line"><a name="l06387"></a><span class="lineno"> 6387</span>  u = stbi__convert_format(u, 4, req_comp, g->w, g->h);</div> -<div class="line"><a name="l06388"></a><span class="lineno"> 6388</span>  }</div> -<div class="line"><a name="l06389"></a><span class="lineno"> 6389</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (g->out)</div> -<div class="line"><a name="l06390"></a><span class="lineno"> 6390</span>  STBI_FREE(g->out);</div> -<div class="line"><a name="l06391"></a><span class="lineno"> 6391</span>  STBI_FREE(g);</div> -<div class="line"><a name="l06392"></a><span class="lineno"> 6392</span>  <span class="keywordflow">return</span> u;</div> -<div class="line"><a name="l06393"></a><span class="lineno"> 6393</span> }</div> -<div class="line"><a name="l06394"></a><span class="lineno"> 6394</span> </div> -<div class="line"><a name="l06395"></a><span class="lineno"> 6395</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06396"></a><span class="lineno"> 6396</span> {</div> -<div class="line"><a name="l06397"></a><span class="lineno"> 6397</span>  <span class="keywordflow">return</span> stbi__gif_info_raw(s,x,y,comp);</div> -<div class="line"><a name="l06398"></a><span class="lineno"> 6398</span> }</div> -<div class="line"><a name="l06399"></a><span class="lineno"> 6399</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l06400"></a><span class="lineno"> 6400</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06401"></a><span class="lineno"> 6401</span> <span class="comment">// *************************************************************************************************</span></div> -<div class="line"><a name="l06402"></a><span class="lineno"> 6402</span> <span class="comment">// Radiance RGBE HDR loader</span></div> -<div class="line"><a name="l06403"></a><span class="lineno"> 6403</span> <span class="comment">// originally by Nicolas Schulz</span></div> -<div class="line"><a name="l06404"></a><span class="lineno"> 6404</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l06405"></a><span class="lineno"> 6405</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_test_core(stbi__context *s, <span class="keyword">const</span> <span class="keywordtype">char</span> *signature)</div> -<div class="line"><a name="l06406"></a><span class="lineno"> 6406</span> {</div> -<div class="line"><a name="l06407"></a><span class="lineno"> 6407</span>  <span class="keywordtype">int</span> i;</div> -<div class="line"><a name="l06408"></a><span class="lineno"> 6408</span>  <span class="keywordflow">for</span> (i=0; signature[i]; ++i)</div> -<div class="line"><a name="l06409"></a><span class="lineno"> 6409</span>  <span class="keywordflow">if</span> (stbi__get8(s) != signature[i])</div> -<div class="line"><a name="l06410"></a><span class="lineno"> 6410</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06411"></a><span class="lineno"> 6411</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06412"></a><span class="lineno"> 6412</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06413"></a><span class="lineno"> 6413</span> }</div> -<div class="line"><a name="l06414"></a><span class="lineno"> 6414</span> </div> -<div class="line"><a name="l06415"></a><span class="lineno"> 6415</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_test(stbi__context* s)</div> -<div class="line"><a name="l06416"></a><span class="lineno"> 6416</span> {</div> -<div class="line"><a name="l06417"></a><span class="lineno"> 6417</span>  <span class="keywordtype">int</span> r = stbi__hdr_test_core(s, <span class="stringliteral">"#?RADIANCE\n"</span>);</div> -<div class="line"><a name="l06418"></a><span class="lineno"> 6418</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06419"></a><span class="lineno"> 6419</span>  <span class="keywordflow">if</span>(!r) {</div> -<div class="line"><a name="l06420"></a><span class="lineno"> 6420</span>  r = stbi__hdr_test_core(s, <span class="stringliteral">"#?RGBE\n"</span>);</div> -<div class="line"><a name="l06421"></a><span class="lineno"> 6421</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06422"></a><span class="lineno"> 6422</span>  }</div> -<div class="line"><a name="l06423"></a><span class="lineno"> 6423</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l06424"></a><span class="lineno"> 6424</span> }</div> -<div class="line"><a name="l06425"></a><span class="lineno"> 6425</span> </div> -<div class="line"><a name="l06426"></a><span class="lineno"> 6426</span> <span class="preprocessor">#define STBI__HDR_BUFLEN 1024</span></div> -<div class="line"><a name="l06427"></a><span class="lineno"> 6427</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">char</span> *stbi__hdr_gettoken(stbi__context *z, <span class="keywordtype">char</span> *buffer)</div> -<div class="line"><a name="l06428"></a><span class="lineno"> 6428</span> {</div> -<div class="line"><a name="l06429"></a><span class="lineno"> 6429</span>  <span class="keywordtype">int</span> len=0;</div> -<div class="line"><a name="l06430"></a><span class="lineno"> 6430</span>  <span class="keywordtype">char</span> c = <span class="charliteral">'\0'</span>;</div> -<div class="line"><a name="l06431"></a><span class="lineno"> 6431</span> </div> -<div class="line"><a name="l06432"></a><span class="lineno"> 6432</span>  c = (char) stbi__get8(z);</div> -<div class="line"><a name="l06433"></a><span class="lineno"> 6433</span> </div> -<div class="line"><a name="l06434"></a><span class="lineno"> 6434</span>  <span class="keywordflow">while</span> (!stbi__at_eof(z) && c != <span class="charliteral">'\n'</span>) {</div> -<div class="line"><a name="l06435"></a><span class="lineno"> 6435</span>  buffer[len++] = c;</div> -<div class="line"><a name="l06436"></a><span class="lineno"> 6436</span>  <span class="keywordflow">if</span> (len == STBI__HDR_BUFLEN-1) {</div> -<div class="line"><a name="l06437"></a><span class="lineno"> 6437</span>  <span class="comment">// flush to end of line</span></div> -<div class="line"><a name="l06438"></a><span class="lineno"> 6438</span>  <span class="keywordflow">while</span> (!stbi__at_eof(z) && stbi__get8(z) != <span class="charliteral">'\n'</span>)</div> -<div class="line"><a name="l06439"></a><span class="lineno"> 6439</span>  ;</div> -<div class="line"><a name="l06440"></a><span class="lineno"> 6440</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06441"></a><span class="lineno"> 6441</span>  }</div> -<div class="line"><a name="l06442"></a><span class="lineno"> 6442</span>  c = (char) stbi__get8(z);</div> -<div class="line"><a name="l06443"></a><span class="lineno"> 6443</span>  }</div> -<div class="line"><a name="l06444"></a><span class="lineno"> 6444</span> </div> -<div class="line"><a name="l06445"></a><span class="lineno"> 6445</span>  buffer[len] = 0;</div> -<div class="line"><a name="l06446"></a><span class="lineno"> 6446</span>  <span class="keywordflow">return</span> buffer;</div> +<div class="line"><a name="l06298"></a><span class="lineno"> 6298</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0))</div> +<div class="line"><a name="l06299"></a><span class="lineno"> 6299</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt TGA"</span>);</div> +<div class="line"><a name="l06300"></a><span class="lineno"> 6300</span> </div> +<div class="line"><a name="l06301"></a><span class="lineno"> 6301</span>  tga_data =</div> +<div class="line"><a name="l06302"></a><span class="lineno"> 6302</span>  (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0);</div> +<div class="line"><a name="l06303"></a><span class="lineno"> 6303</span>  <span class="keywordflow">if</span> (!tga_data)</div> +<div class="line"><a name="l06304"></a><span class="lineno"> 6304</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l06305"></a><span class="lineno"> 6305</span> </div> +<div class="line"><a name="l06306"></a><span class="lineno"> 6306</span>  <span class="comment">// skip to the data's starting position (offset usually = 0)</span></div> +<div class="line"><a name="l06307"></a><span class="lineno"> 6307</span>  stbi__skip(s, tga_offset);</div> +<div class="line"><a name="l06308"></a><span class="lineno"> 6308</span> </div> +<div class="line"><a name="l06309"></a><span class="lineno"> 6309</span>  <span class="keywordflow">if</span> (!tga_indexed && !tga_is_RLE && !tga_rgb16) {</div> +<div class="line"><a name="l06310"></a><span class="lineno"> 6310</span>  <span class="keywordflow">for</span> (i = 0; i < tga_height; ++i) {</div> +<div class="line"><a name="l06311"></a><span class="lineno"> 6311</span>  <span class="keywordtype">int</span> row = tga_inverted ? tga_height - i - 1 : i;</div> +<div class="line"><a name="l06312"></a><span class="lineno"> 6312</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *tga_row = tga_data + row * tga_width * tga_comp;</div> +<div class="line"><a name="l06313"></a><span class="lineno"> 6313</span>  stbi__getn(s, tga_row, tga_width * tga_comp);</div> +<div class="line"><a name="l06314"></a><span class="lineno"> 6314</span>  }</div> +<div class="line"><a name="l06315"></a><span class="lineno"> 6315</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06316"></a><span class="lineno"> 6316</span>  <span class="comment">// do I need to load a palette?</span></div> +<div class="line"><a name="l06317"></a><span class="lineno"> 6317</span>  <span class="keywordflow">if</span> (tga_indexed) {</div> +<div class="line"><a name="l06318"></a><span class="lineno"> 6318</span>  <span class="comment">// any data to skip? (offset usually = 0)</span></div> +<div class="line"><a name="l06319"></a><span class="lineno"> 6319</span>  stbi__skip(s, tga_palette_start);</div> +<div class="line"><a name="l06320"></a><span class="lineno"> 6320</span>  <span class="comment">// load the palette</span></div> +<div class="line"><a name="l06321"></a><span class="lineno"> 6321</span>  tga_palette = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)stbi__malloc_mad2(tga_palette_len,</div> +<div class="line"><a name="l06322"></a><span class="lineno"> 6322</span>  tga_comp, 0);</div> +<div class="line"><a name="l06323"></a><span class="lineno"> 6323</span>  <span class="keywordflow">if</span> (!tga_palette) {</div> +<div class="line"><a name="l06324"></a><span class="lineno"> 6324</span>  STBI_FREE(tga_data);</div> +<div class="line"><a name="l06325"></a><span class="lineno"> 6325</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l06326"></a><span class="lineno"> 6326</span>  }</div> +<div class="line"><a name="l06327"></a><span class="lineno"> 6327</span>  <span class="keywordflow">if</span> (tga_rgb16) {</div> +<div class="line"><a name="l06328"></a><span class="lineno"> 6328</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *pal_entry = tga_palette;</div> +<div class="line"><a name="l06329"></a><span class="lineno"> 6329</span>  STBI_ASSERT(tga_comp == <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a>);</div> +<div class="line"><a name="l06330"></a><span class="lineno"> 6330</span>  <span class="keywordflow">for</span> (i = 0; i < tga_palette_len; ++i) {</div> +<div class="line"><a name="l06331"></a><span class="lineno"> 6331</span>  stbi__tga_read_rgb16(s, pal_entry);</div> +<div class="line"><a name="l06332"></a><span class="lineno"> 6332</span>  pal_entry += tga_comp;</div> +<div class="line"><a name="l06333"></a><span class="lineno"> 6333</span>  }</div> +<div class="line"><a name="l06334"></a><span class="lineno"> 6334</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!stbi__getn(s, tga_palette,</div> +<div class="line"><a name="l06335"></a><span class="lineno"> 6335</span>  tga_palette_len * tga_comp)) {</div> +<div class="line"><a name="l06336"></a><span class="lineno"> 6336</span>  STBI_FREE(tga_data);</div> +<div class="line"><a name="l06337"></a><span class="lineno"> 6337</span>  STBI_FREE(tga_palette);</div> +<div class="line"><a name="l06338"></a><span class="lineno"> 6338</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad palette"</span>, <span class="stringliteral">"Corrupt TGA"</span>);</div> +<div class="line"><a name="l06339"></a><span class="lineno"> 6339</span>  }</div> +<div class="line"><a name="l06340"></a><span class="lineno"> 6340</span>  }</div> +<div class="line"><a name="l06341"></a><span class="lineno"> 6341</span>  <span class="comment">// load the data</span></div> +<div class="line"><a name="l06342"></a><span class="lineno"> 6342</span>  <span class="keywordflow">for</span> (i = 0; i < tga_width * tga_height; ++i) {</div> +<div class="line"><a name="l06343"></a><span class="lineno"> 6343</span>  <span class="comment">// if I'm in RLE mode, do I need to get a RLE stbi__pngchunk?</span></div> +<div class="line"><a name="l06344"></a><span class="lineno"> 6344</span>  <span class="keywordflow">if</span> (tga_is_RLE) {</div> +<div class="line"><a name="l06345"></a><span class="lineno"> 6345</span>  <span class="keywordflow">if</span> (RLE_count == 0) {</div> +<div class="line"><a name="l06346"></a><span class="lineno"> 6346</span>  <span class="comment">// yep, get the next byte as a RLE command</span></div> +<div class="line"><a name="l06347"></a><span class="lineno"> 6347</span>  <span class="keywordtype">int</span> RLE_cmd = stbi__get8(s);</div> +<div class="line"><a name="l06348"></a><span class="lineno"> 6348</span>  RLE_count = 1 + (RLE_cmd & 127);</div> +<div class="line"><a name="l06349"></a><span class="lineno"> 6349</span>  RLE_repeating = RLE_cmd >> 7;</div> +<div class="line"><a name="l06350"></a><span class="lineno"> 6350</span>  read_next_pixel = 1;</div> +<div class="line"><a name="l06351"></a><span class="lineno"> 6351</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!RLE_repeating) {</div> +<div class="line"><a name="l06352"></a><span class="lineno"> 6352</span>  read_next_pixel = 1;</div> +<div class="line"><a name="l06353"></a><span class="lineno"> 6353</span>  }</div> +<div class="line"><a name="l06354"></a><span class="lineno"> 6354</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06355"></a><span class="lineno"> 6355</span>  read_next_pixel = 1;</div> +<div class="line"><a name="l06356"></a><span class="lineno"> 6356</span>  }</div> +<div class="line"><a name="l06357"></a><span class="lineno"> 6357</span>  <span class="comment">// OK, if I need to read a pixel, do it now</span></div> +<div class="line"><a name="l06358"></a><span class="lineno"> 6358</span>  <span class="keywordflow">if</span> (read_next_pixel) {</div> +<div class="line"><a name="l06359"></a><span class="lineno"> 6359</span>  <span class="comment">// load however much data we did have</span></div> +<div class="line"><a name="l06360"></a><span class="lineno"> 6360</span>  <span class="keywordflow">if</span> (tga_indexed) {</div> +<div class="line"><a name="l06361"></a><span class="lineno"> 6361</span>  <span class="comment">// read in index, then perform the lookup</span></div> +<div class="line"><a name="l06362"></a><span class="lineno"> 6362</span>  <span class="keywordtype">int</span> pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s)</div> +<div class="line"><a name="l06363"></a><span class="lineno"> 6363</span>  : stbi__get16le(s);</div> +<div class="line"><a name="l06364"></a><span class="lineno"> 6364</span>  <span class="keywordflow">if</span> (pal_idx >= tga_palette_len) {</div> +<div class="line"><a name="l06365"></a><span class="lineno"> 6365</span>  <span class="comment">// invalid index</span></div> +<div class="line"><a name="l06366"></a><span class="lineno"> 6366</span>  pal_idx = 0;</div> +<div class="line"><a name="l06367"></a><span class="lineno"> 6367</span>  }</div> +<div class="line"><a name="l06368"></a><span class="lineno"> 6368</span>  pal_idx *= tga_comp;</div> +<div class="line"><a name="l06369"></a><span class="lineno"> 6369</span>  <span class="keywordflow">for</span> (j = 0; j < tga_comp; ++j) {</div> +<div class="line"><a name="l06370"></a><span class="lineno"> 6370</span>  raw_data[j] = tga_palette[pal_idx + j];</div> +<div class="line"><a name="l06371"></a><span class="lineno"> 6371</span>  }</div> +<div class="line"><a name="l06372"></a><span class="lineno"> 6372</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (tga_rgb16) {</div> +<div class="line"><a name="l06373"></a><span class="lineno"> 6373</span>  STBI_ASSERT(tga_comp == <a class="code" href="stb__image_8h.html#a06fc87d81c62e9abb8790b6e5713c55baa59123e5d0af25f9b1539f5cf1facddf">STBI_rgb</a>);</div> +<div class="line"><a name="l06374"></a><span class="lineno"> 6374</span>  stbi__tga_read_rgb16(s, raw_data);</div> +<div class="line"><a name="l06375"></a><span class="lineno"> 6375</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06376"></a><span class="lineno"> 6376</span>  <span class="comment">// read in the data raw</span></div> +<div class="line"><a name="l06377"></a><span class="lineno"> 6377</span>  <span class="keywordflow">for</span> (j = 0; j < tga_comp; ++j) {</div> +<div class="line"><a name="l06378"></a><span class="lineno"> 6378</span>  raw_data[j] = stbi__get8(s);</div> +<div class="line"><a name="l06379"></a><span class="lineno"> 6379</span>  }</div> +<div class="line"><a name="l06380"></a><span class="lineno"> 6380</span>  }</div> +<div class="line"><a name="l06381"></a><span class="lineno"> 6381</span>  <span class="comment">// clear the reading flag for the next pixel</span></div> +<div class="line"><a name="l06382"></a><span class="lineno"> 6382</span>  read_next_pixel = 0;</div> +<div class="line"><a name="l06383"></a><span class="lineno"> 6383</span>  } <span class="comment">// end of reading a pixel</span></div> +<div class="line"><a name="l06384"></a><span class="lineno"> 6384</span> </div> +<div class="line"><a name="l06385"></a><span class="lineno"> 6385</span>  <span class="comment">// copy data</span></div> +<div class="line"><a name="l06386"></a><span class="lineno"> 6386</span>  <span class="keywordflow">for</span> (j = 0; j < tga_comp; ++j)</div> +<div class="line"><a name="l06387"></a><span class="lineno"> 6387</span>  tga_data[i * tga_comp + j] = raw_data[j];</div> +<div class="line"><a name="l06388"></a><span class="lineno"> 6388</span> </div> +<div class="line"><a name="l06389"></a><span class="lineno"> 6389</span>  <span class="comment">// in case we're in RLE mode, keep counting down</span></div> +<div class="line"><a name="l06390"></a><span class="lineno"> 6390</span>  --RLE_count;</div> +<div class="line"><a name="l06391"></a><span class="lineno"> 6391</span>  }</div> +<div class="line"><a name="l06392"></a><span class="lineno"> 6392</span>  <span class="comment">// do I need to invert the image?</span></div> +<div class="line"><a name="l06393"></a><span class="lineno"> 6393</span>  <span class="keywordflow">if</span> (tga_inverted) {</div> +<div class="line"><a name="l06394"></a><span class="lineno"> 6394</span>  <span class="keywordflow">for</span> (j = 0; j * 2 < tga_height; ++j) {</div> +<div class="line"><a name="l06395"></a><span class="lineno"> 6395</span>  <span class="keywordtype">int</span> index1 = j * tga_width * tga_comp;</div> +<div class="line"><a name="l06396"></a><span class="lineno"> 6396</span>  <span class="keywordtype">int</span> index2 = (tga_height - 1 - j) * tga_width * tga_comp;</div> +<div class="line"><a name="l06397"></a><span class="lineno"> 6397</span>  <span class="keywordflow">for</span> (i = tga_width * tga_comp; i > 0; --i) {</div> +<div class="line"><a name="l06398"></a><span class="lineno"> 6398</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp = tga_data[index1];</div> +<div class="line"><a name="l06399"></a><span class="lineno"> 6399</span>  tga_data[index1] = tga_data[index2];</div> +<div class="line"><a name="l06400"></a><span class="lineno"> 6400</span>  tga_data[index2] = temp;</div> +<div class="line"><a name="l06401"></a><span class="lineno"> 6401</span>  ++index1;</div> +<div class="line"><a name="l06402"></a><span class="lineno"> 6402</span>  ++index2;</div> +<div class="line"><a name="l06403"></a><span class="lineno"> 6403</span>  }</div> +<div class="line"><a name="l06404"></a><span class="lineno"> 6404</span>  }</div> +<div class="line"><a name="l06405"></a><span class="lineno"> 6405</span>  }</div> +<div class="line"><a name="l06406"></a><span class="lineno"> 6406</span>  <span class="comment">// clear my palette, if I had one</span></div> +<div class="line"><a name="l06407"></a><span class="lineno"> 6407</span>  <span class="keywordflow">if</span> (tga_palette != NULL) {</div> +<div class="line"><a name="l06408"></a><span class="lineno"> 6408</span>  STBI_FREE(tga_palette);</div> +<div class="line"><a name="l06409"></a><span class="lineno"> 6409</span>  }</div> +<div class="line"><a name="l06410"></a><span class="lineno"> 6410</span>  }</div> +<div class="line"><a name="l06411"></a><span class="lineno"> 6411</span> </div> +<div class="line"><a name="l06412"></a><span class="lineno"> 6412</span>  <span class="comment">// swap RGB - if the source data was RGB16, it already is in the right order</span></div> +<div class="line"><a name="l06413"></a><span class="lineno"> 6413</span>  <span class="keywordflow">if</span> (tga_comp >= 3 && !tga_rgb16) {</div> +<div class="line"><a name="l06414"></a><span class="lineno"> 6414</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *tga_pixel = tga_data;</div> +<div class="line"><a name="l06415"></a><span class="lineno"> 6415</span>  <span class="keywordflow">for</span> (i = 0; i < tga_width * tga_height; ++i) {</div> +<div class="line"><a name="l06416"></a><span class="lineno"> 6416</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> temp = tga_pixel[0];</div> +<div class="line"><a name="l06417"></a><span class="lineno"> 6417</span>  tga_pixel[0] = tga_pixel[2];</div> +<div class="line"><a name="l06418"></a><span class="lineno"> 6418</span>  tga_pixel[2] = temp;</div> +<div class="line"><a name="l06419"></a><span class="lineno"> 6419</span>  tga_pixel += tga_comp;</div> +<div class="line"><a name="l06420"></a><span class="lineno"> 6420</span>  }</div> +<div class="line"><a name="l06421"></a><span class="lineno"> 6421</span>  }</div> +<div class="line"><a name="l06422"></a><span class="lineno"> 6422</span> </div> +<div class="line"><a name="l06423"></a><span class="lineno"> 6423</span>  <span class="comment">// convert to target component count</span></div> +<div class="line"><a name="l06424"></a><span class="lineno"> 6424</span>  <span class="keywordflow">if</span> (req_comp && req_comp != tga_comp)</div> +<div class="line"><a name="l06425"></a><span class="lineno"> 6425</span>  tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width,</div> +<div class="line"><a name="l06426"></a><span class="lineno"> 6426</span>  tga_height);</div> +<div class="line"><a name="l06427"></a><span class="lineno"> 6427</span> </div> +<div class="line"><a name="l06428"></a><span class="lineno"> 6428</span>  <span class="comment">// the things I do to get rid of an error message, and yet keep</span></div> +<div class="line"><a name="l06429"></a><span class="lineno"> 6429</span>  <span class="comment">// Microsoft's C compilers happy... [8^(</span></div> +<div class="line"><a name="l06430"></a><span class="lineno"> 6430</span>  tga_palette_start = tga_palette_len = tga_palette_bits = tga_x_origin =</div> +<div class="line"><a name="l06431"></a><span class="lineno"> 6431</span>  tga_y_origin = 0;</div> +<div class="line"><a name="l06432"></a><span class="lineno"> 6432</span>  <span class="comment">// OK, done</span></div> +<div class="line"><a name="l06433"></a><span class="lineno"> 6433</span>  <span class="keywordflow">return</span> tga_data;</div> +<div class="line"><a name="l06434"></a><span class="lineno"> 6434</span> }</div> +<div class="line"><a name="l06435"></a><span class="lineno"> 6435</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l06436"></a><span class="lineno"> 6436</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l06437"></a><span class="lineno"> 6437</span>  <span class="comment">// *************************************************************************************************</span></div> +<div class="line"><a name="l06438"></a><span class="lineno"> 6438</span>  <span class="comment">// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas</span></div> +<div class="line"><a name="l06439"></a><span class="lineno"> 6439</span>  <span class="comment">// Schulz, tweaked by STB</span></div> +<div class="line"><a name="l06440"></a><span class="lineno"> 6440</span> </div> +<div class="line"><a name="l06441"></a><span class="lineno"> 6441</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> +<div class="line"><a name="l06442"></a><span class="lineno"> 6442</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_test(stbi__context *s)</div> +<div class="line"><a name="l06443"></a><span class="lineno"> 6443</span> {</div> +<div class="line"><a name="l06444"></a><span class="lineno"> 6444</span>  <span class="keywordtype">int</span> r = (stbi__get32be(s) == 0x38425053);</div> +<div class="line"><a name="l06445"></a><span class="lineno"> 6445</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06446"></a><span class="lineno"> 6446</span>  <span class="keywordflow">return</span> r;</div> <div class="line"><a name="l06447"></a><span class="lineno"> 6447</span> }</div> <div class="line"><a name="l06448"></a><span class="lineno"> 6448</span> </div> -<div class="line"><a name="l06449"></a><span class="lineno"> 6449</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__hdr_convert(<span class="keywordtype">float</span> *output, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *input, <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l06449"></a><span class="lineno"> 6449</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_decode_rle(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p, <span class="keywordtype">int</span> pixelCount)</div> <div class="line"><a name="l06450"></a><span class="lineno"> 6450</span> {</div> -<div class="line"><a name="l06451"></a><span class="lineno"> 6451</span>  <span class="keywordflow">if</span> ( input[3] != 0 ) {</div> -<div class="line"><a name="l06452"></a><span class="lineno"> 6452</span>  <span class="keywordtype">float</span> f1;</div> -<div class="line"><a name="l06453"></a><span class="lineno"> 6453</span>  <span class="comment">// Exponent</span></div> -<div class="line"><a name="l06454"></a><span class="lineno"> 6454</span>  f1 = (float) ldexp(1.0f, input[3] - (<span class="keywordtype">int</span>)(128 + 8));</div> -<div class="line"><a name="l06455"></a><span class="lineno"> 6455</span>  <span class="keywordflow">if</span> (req_comp <= 2)</div> -<div class="line"><a name="l06456"></a><span class="lineno"> 6456</span>  output[0] = (input[0] + input[1] + input[2]) * f1 / 3;</div> -<div class="line"><a name="l06457"></a><span class="lineno"> 6457</span>  <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06458"></a><span class="lineno"> 6458</span>  output[0] = input[0] * f1;</div> -<div class="line"><a name="l06459"></a><span class="lineno"> 6459</span>  output[1] = input[1] * f1;</div> -<div class="line"><a name="l06460"></a><span class="lineno"> 6460</span>  output[2] = input[2] * f1;</div> -<div class="line"><a name="l06461"></a><span class="lineno"> 6461</span>  }</div> -<div class="line"><a name="l06462"></a><span class="lineno"> 6462</span>  <span class="keywordflow">if</span> (req_comp == 2) output[1] = 1;</div> -<div class="line"><a name="l06463"></a><span class="lineno"> 6463</span>  <span class="keywordflow">if</span> (req_comp == 4) output[3] = 1;</div> -<div class="line"><a name="l06464"></a><span class="lineno"> 6464</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06465"></a><span class="lineno"> 6465</span>  <span class="keywordflow">switch</span> (req_comp) {</div> -<div class="line"><a name="l06466"></a><span class="lineno"> 6466</span>  <span class="keywordflow">case</span> 4: output[3] = 1; <span class="comment">/* fallthrough */</span></div> -<div class="line"><a name="l06467"></a><span class="lineno"> 6467</span>  <span class="keywordflow">case</span> 3: output[0] = output[1] = output[2] = 0;</div> -<div class="line"><a name="l06468"></a><span class="lineno"> 6468</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06469"></a><span class="lineno"> 6469</span>  <span class="keywordflow">case</span> 2: output[1] = 1; <span class="comment">/* fallthrough */</span></div> -<div class="line"><a name="l06470"></a><span class="lineno"> 6470</span>  <span class="keywordflow">case</span> 1: output[0] = 0;</div> -<div class="line"><a name="l06471"></a><span class="lineno"> 6471</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06472"></a><span class="lineno"> 6472</span>  }</div> -<div class="line"><a name="l06473"></a><span class="lineno"> 6473</span>  }</div> -<div class="line"><a name="l06474"></a><span class="lineno"> 6474</span> }</div> -<div class="line"><a name="l06475"></a><span class="lineno"> 6475</span> </div> -<div class="line"><a name="l06476"></a><span class="lineno"> 6476</span> <span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__hdr_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l06477"></a><span class="lineno"> 6477</span> {</div> -<div class="line"><a name="l06478"></a><span class="lineno"> 6478</span>  <span class="keywordtype">char</span> buffer[STBI__HDR_BUFLEN];</div> -<div class="line"><a name="l06479"></a><span class="lineno"> 6479</span>  <span class="keywordtype">char</span> *token;</div> -<div class="line"><a name="l06480"></a><span class="lineno"> 6480</span>  <span class="keywordtype">int</span> valid = 0;</div> -<div class="line"><a name="l06481"></a><span class="lineno"> 6481</span>  <span class="keywordtype">int</span> width, height;</div> -<div class="line"><a name="l06482"></a><span class="lineno"> 6482</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *scanline;</div> -<div class="line"><a name="l06483"></a><span class="lineno"> 6483</span>  <span class="keywordtype">float</span> *hdr_data;</div> -<div class="line"><a name="l06484"></a><span class="lineno"> 6484</span>  <span class="keywordtype">int</span> len;</div> -<div class="line"><a name="l06485"></a><span class="lineno"> 6485</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> count, value;</div> -<div class="line"><a name="l06486"></a><span class="lineno"> 6486</span>  <span class="keywordtype">int</span> i, j, k, c1,c2, z;</div> -<div class="line"><a name="l06487"></a><span class="lineno"> 6487</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *headerToken;</div> -<div class="line"><a name="l06488"></a><span class="lineno"> 6488</span>  STBI_NOTUSED(ri);</div> -<div class="line"><a name="l06489"></a><span class="lineno"> 6489</span> </div> -<div class="line"><a name="l06490"></a><span class="lineno"> 6490</span>  <span class="comment">// Check identifier</span></div> -<div class="line"><a name="l06491"></a><span class="lineno"> 6491</span>  headerToken = stbi__hdr_gettoken(s,buffer);</div> -<div class="line"><a name="l06492"></a><span class="lineno"> 6492</span>  <span class="keywordflow">if</span> (strcmp(headerToken, <span class="stringliteral">"#?RADIANCE"</span>) != 0 && strcmp(headerToken, <span class="stringliteral">"#?RGBE"</span>) != 0)</div> -<div class="line"><a name="l06493"></a><span class="lineno"> 6493</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"not HDR"</span>, <span class="stringliteral">"Corrupt HDR image"</span>);</div> -<div class="line"><a name="l06494"></a><span class="lineno"> 6494</span> </div> -<div class="line"><a name="l06495"></a><span class="lineno"> 6495</span>  <span class="comment">// Parse header</span></div> -<div class="line"><a name="l06496"></a><span class="lineno"> 6496</span>  <span class="keywordflow">for</span>(;;) {</div> -<div class="line"><a name="l06497"></a><span class="lineno"> 6497</span>  token = stbi__hdr_gettoken(s,buffer);</div> -<div class="line"><a name="l06498"></a><span class="lineno"> 6498</span>  <span class="keywordflow">if</span> (token[0] == 0) <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06499"></a><span class="lineno"> 6499</span>  <span class="keywordflow">if</span> (strcmp(token, <span class="stringliteral">"FORMAT=32-bit_rle_rgbe"</span>) == 0) valid = 1;</div> -<div class="line"><a name="l06500"></a><span class="lineno"> 6500</span>  }</div> -<div class="line"><a name="l06501"></a><span class="lineno"> 6501</span> </div> -<div class="line"><a name="l06502"></a><span class="lineno"> 6502</span>  <span class="keywordflow">if</span> (!valid) <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unsupported format"</span>, <span class="stringliteral">"Unsupported HDR format"</span>);</div> +<div class="line"><a name="l06451"></a><span class="lineno"> 6451</span>  <span class="keywordtype">int</span> count, nleft, len;</div> +<div class="line"><a name="l06452"></a><span class="lineno"> 6452</span> </div> +<div class="line"><a name="l06453"></a><span class="lineno"> 6453</span>  count = 0;</div> +<div class="line"><a name="l06454"></a><span class="lineno"> 6454</span>  <span class="keywordflow">while</span> ((nleft = pixelCount - count) > 0) {</div> +<div class="line"><a name="l06455"></a><span class="lineno"> 6455</span>  len = stbi__get8(s);</div> +<div class="line"><a name="l06456"></a><span class="lineno"> 6456</span>  <span class="keywordflow">if</span> (len == 128) {</div> +<div class="line"><a name="l06457"></a><span class="lineno"> 6457</span>  <span class="comment">// No-op.</span></div> +<div class="line"><a name="l06458"></a><span class="lineno"> 6458</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (len < 128) {</div> +<div class="line"><a name="l06459"></a><span class="lineno"> 6459</span>  <span class="comment">// Copy next len+1 bytes literally.</span></div> +<div class="line"><a name="l06460"></a><span class="lineno"> 6460</span>  len++;</div> +<div class="line"><a name="l06461"></a><span class="lineno"> 6461</span>  <span class="keywordflow">if</span> (len > nleft)</div> +<div class="line"><a name="l06462"></a><span class="lineno"> 6462</span>  <span class="keywordflow">return</span> 0; <span class="comment">// corrupt data</span></div> +<div class="line"><a name="l06463"></a><span class="lineno"> 6463</span>  count += len;</div> +<div class="line"><a name="l06464"></a><span class="lineno"> 6464</span>  <span class="keywordflow">while</span> (len) {</div> +<div class="line"><a name="l06465"></a><span class="lineno"> 6465</span>  *p = stbi__get8(s);</div> +<div class="line"><a name="l06466"></a><span class="lineno"> 6466</span>  p += 4;</div> +<div class="line"><a name="l06467"></a><span class="lineno"> 6467</span>  len--;</div> +<div class="line"><a name="l06468"></a><span class="lineno"> 6468</span>  }</div> +<div class="line"><a name="l06469"></a><span class="lineno"> 6469</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (len > 128) {</div> +<div class="line"><a name="l06470"></a><span class="lineno"> 6470</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> val;</div> +<div class="line"><a name="l06471"></a><span class="lineno"> 6471</span>  <span class="comment">// Next -len+1 bytes in the dest are replicated from next source</span></div> +<div class="line"><a name="l06472"></a><span class="lineno"> 6472</span>  <span class="comment">// byte. (Interpret len as a negative 8-bit int.)</span></div> +<div class="line"><a name="l06473"></a><span class="lineno"> 6473</span>  len = 257 - len;</div> +<div class="line"><a name="l06474"></a><span class="lineno"> 6474</span>  <span class="keywordflow">if</span> (len > nleft)</div> +<div class="line"><a name="l06475"></a><span class="lineno"> 6475</span>  <span class="keywordflow">return</span> 0; <span class="comment">// corrupt data</span></div> +<div class="line"><a name="l06476"></a><span class="lineno"> 6476</span>  val = stbi__get8(s);</div> +<div class="line"><a name="l06477"></a><span class="lineno"> 6477</span>  count += len;</div> +<div class="line"><a name="l06478"></a><span class="lineno"> 6478</span>  <span class="keywordflow">while</span> (len) {</div> +<div class="line"><a name="l06479"></a><span class="lineno"> 6479</span>  *p = val;</div> +<div class="line"><a name="l06480"></a><span class="lineno"> 6480</span>  p += 4;</div> +<div class="line"><a name="l06481"></a><span class="lineno"> 6481</span>  len--;</div> +<div class="line"><a name="l06482"></a><span class="lineno"> 6482</span>  }</div> +<div class="line"><a name="l06483"></a><span class="lineno"> 6483</span>  }</div> +<div class="line"><a name="l06484"></a><span class="lineno"> 6484</span>  }</div> +<div class="line"><a name="l06485"></a><span class="lineno"> 6485</span> </div> +<div class="line"><a name="l06486"></a><span class="lineno"> 6486</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l06487"></a><span class="lineno"> 6487</span> }</div> +<div class="line"><a name="l06488"></a><span class="lineno"> 6488</span> </div> +<div class="line"><a name="l06489"></a><span class="lineno"> 6489</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__psd_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l06490"></a><span class="lineno"> 6490</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri, <span class="keywordtype">int</span> bpc)</div> +<div class="line"><a name="l06491"></a><span class="lineno"> 6491</span> {</div> +<div class="line"><a name="l06492"></a><span class="lineno"> 6492</span>  <span class="keywordtype">int</span> pixelCount;</div> +<div class="line"><a name="l06493"></a><span class="lineno"> 6493</span>  <span class="keywordtype">int</span> channelCount, compression;</div> +<div class="line"><a name="l06494"></a><span class="lineno"> 6494</span>  <span class="keywordtype">int</span> channel, i;</div> +<div class="line"><a name="l06495"></a><span class="lineno"> 6495</span>  <span class="keywordtype">int</span> bitdepth;</div> +<div class="line"><a name="l06496"></a><span class="lineno"> 6496</span>  <span class="keywordtype">int</span> w, h;</div> +<div class="line"><a name="l06497"></a><span class="lineno"> 6497</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out;</div> +<div class="line"><a name="l06498"></a><span class="lineno"> 6498</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l06499"></a><span class="lineno"> 6499</span> </div> +<div class="line"><a name="l06500"></a><span class="lineno"> 6500</span>  <span class="comment">// Check identifier</span></div> +<div class="line"><a name="l06501"></a><span class="lineno"> 6501</span>  <span class="keywordflow">if</span> (stbi__get32be(s) != 0x38425053) <span class="comment">// "8BPS"</span></div> +<div class="line"><a name="l06502"></a><span class="lineno"> 6502</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"not PSD"</span>, <span class="stringliteral">"Corrupt PSD image"</span>);</div> <div class="line"><a name="l06503"></a><span class="lineno"> 6503</span> </div> -<div class="line"><a name="l06504"></a><span class="lineno"> 6504</span>  <span class="comment">// Parse width and height</span></div> -<div class="line"><a name="l06505"></a><span class="lineno"> 6505</span>  <span class="comment">// can't use sscanf() if we're not using stdio!</span></div> -<div class="line"><a name="l06506"></a><span class="lineno"> 6506</span>  token = stbi__hdr_gettoken(s,buffer);</div> -<div class="line"><a name="l06507"></a><span class="lineno"> 6507</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"-Y "</span>, 3)) <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unsupported data layout"</span>, <span class="stringliteral">"Unsupported HDR format"</span>);</div> -<div class="line"><a name="l06508"></a><span class="lineno"> 6508</span>  token += 3;</div> -<div class="line"><a name="l06509"></a><span class="lineno"> 6509</span>  height = (int) strtol(token, &token, 10);</div> -<div class="line"><a name="l06510"></a><span class="lineno"> 6510</span>  <span class="keywordflow">while</span> (*token == <span class="charliteral">' '</span>) ++token;</div> -<div class="line"><a name="l06511"></a><span class="lineno"> 6511</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"+X "</span>, 3)) <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unsupported data layout"</span>, <span class="stringliteral">"Unsupported HDR format"</span>);</div> -<div class="line"><a name="l06512"></a><span class="lineno"> 6512</span>  token += 3;</div> -<div class="line"><a name="l06513"></a><span class="lineno"> 6513</span>  width = (int) strtol(token, NULL, 10);</div> -<div class="line"><a name="l06514"></a><span class="lineno"> 6514</span> </div> -<div class="line"><a name="l06515"></a><span class="lineno"> 6515</span>  *x = width;</div> -<div class="line"><a name="l06516"></a><span class="lineno"> 6516</span>  *y = height;</div> +<div class="line"><a name="l06504"></a><span class="lineno"> 6504</span>  <span class="comment">// Check file type version.</span></div> +<div class="line"><a name="l06505"></a><span class="lineno"> 6505</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 1)</div> +<div class="line"><a name="l06506"></a><span class="lineno"> 6506</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"wrong version"</span>,</div> +<div class="line"><a name="l06507"></a><span class="lineno"> 6507</span>  <span class="stringliteral">"Unsupported version of PSD image"</span>);</div> +<div class="line"><a name="l06508"></a><span class="lineno"> 6508</span> </div> +<div class="line"><a name="l06509"></a><span class="lineno"> 6509</span>  <span class="comment">// Skip 6 reserved bytes.</span></div> +<div class="line"><a name="l06510"></a><span class="lineno"> 6510</span>  stbi__skip(s, 6);</div> +<div class="line"><a name="l06511"></a><span class="lineno"> 6511</span> </div> +<div class="line"><a name="l06512"></a><span class="lineno"> 6512</span>  <span class="comment">// Read the number of channels (R, G, B, A, etc).</span></div> +<div class="line"><a name="l06513"></a><span class="lineno"> 6513</span>  channelCount = stbi__get16be(s);</div> +<div class="line"><a name="l06514"></a><span class="lineno"> 6514</span>  <span class="keywordflow">if</span> (channelCount < 0 || channelCount > 16)</div> +<div class="line"><a name="l06515"></a><span class="lineno"> 6515</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"wrong channel count"</span>,</div> +<div class="line"><a name="l06516"></a><span class="lineno"> 6516</span>  <span class="stringliteral">"Unsupported number of channels in PSD image"</span>);</div> <div class="line"><a name="l06517"></a><span class="lineno"> 6517</span> </div> -<div class="line"><a name="l06518"></a><span class="lineno"> 6518</span>  <span class="keywordflow">if</span> (comp) *comp = 3;</div> -<div class="line"><a name="l06519"></a><span class="lineno"> 6519</span>  <span class="keywordflow">if</span> (req_comp == 0) req_comp = 3;</div> -<div class="line"><a name="l06520"></a><span class="lineno"> 6520</span> </div> -<div class="line"><a name="l06521"></a><span class="lineno"> 6521</span>  <span class="keywordflow">if</span> (!stbi__mad4sizes_valid(width, height, req_comp, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), 0))</div> -<div class="line"><a name="l06522"></a><span class="lineno"> 6522</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"HDR image is too large"</span>);</div> -<div class="line"><a name="l06523"></a><span class="lineno"> 6523</span> </div> -<div class="line"><a name="l06524"></a><span class="lineno"> 6524</span>  <span class="comment">// Read data</span></div> -<div class="line"><a name="l06525"></a><span class="lineno"> 6525</span>  hdr_data = (<span class="keywordtype">float</span> *) stbi__malloc_mad4(width, height, req_comp, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), 0);</div> -<div class="line"><a name="l06526"></a><span class="lineno"> 6526</span>  <span class="keywordflow">if</span> (!hdr_data)</div> -<div class="line"><a name="l06527"></a><span class="lineno"> 6527</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l06528"></a><span class="lineno"> 6528</span> </div> -<div class="line"><a name="l06529"></a><span class="lineno"> 6529</span>  <span class="comment">// Load image data</span></div> -<div class="line"><a name="l06530"></a><span class="lineno"> 6530</span>  <span class="comment">// image data is stored as some number of sca</span></div> -<div class="line"><a name="l06531"></a><span class="lineno"> 6531</span>  <span class="keywordflow">if</span> ( width < 8 || width >= 32768) {</div> -<div class="line"><a name="l06532"></a><span class="lineno"> 6532</span>  <span class="comment">// Read flat data</span></div> -<div class="line"><a name="l06533"></a><span class="lineno"> 6533</span>  <span class="keywordflow">for</span> (j=0; j < height; ++j) {</div> -<div class="line"><a name="l06534"></a><span class="lineno"> 6534</span>  <span class="keywordflow">for</span> (i=0; i < width; ++i) {</div> -<div class="line"><a name="l06535"></a><span class="lineno"> 6535</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> rgbe[4];</div> -<div class="line"><a name="l06536"></a><span class="lineno"> 6536</span>  main_decode_loop:</div> -<div class="line"><a name="l06537"></a><span class="lineno"> 6537</span>  stbi__getn(s, rgbe, 4);</div> -<div class="line"><a name="l06538"></a><span class="lineno"> 6538</span>  stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp);</div> -<div class="line"><a name="l06539"></a><span class="lineno"> 6539</span>  }</div> -<div class="line"><a name="l06540"></a><span class="lineno"> 6540</span>  }</div> -<div class="line"><a name="l06541"></a><span class="lineno"> 6541</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06542"></a><span class="lineno"> 6542</span>  <span class="comment">// Read RLE-encoded data</span></div> -<div class="line"><a name="l06543"></a><span class="lineno"> 6543</span>  scanline = NULL;</div> -<div class="line"><a name="l06544"></a><span class="lineno"> 6544</span> </div> -<div class="line"><a name="l06545"></a><span class="lineno"> 6545</span>  <span class="keywordflow">for</span> (j = 0; j < height; ++j) {</div> -<div class="line"><a name="l06546"></a><span class="lineno"> 6546</span>  c1 = stbi__get8(s);</div> -<div class="line"><a name="l06547"></a><span class="lineno"> 6547</span>  c2 = stbi__get8(s);</div> -<div class="line"><a name="l06548"></a><span class="lineno"> 6548</span>  len = stbi__get8(s);</div> -<div class="line"><a name="l06549"></a><span class="lineno"> 6549</span>  <span class="keywordflow">if</span> (c1 != 2 || c2 != 2 || (len & 0x80)) {</div> -<div class="line"><a name="l06550"></a><span class="lineno"> 6550</span>  <span class="comment">// not run-length encoded, so we have to actually use THIS data as a decoded</span></div> -<div class="line"><a name="l06551"></a><span class="lineno"> 6551</span>  <span class="comment">// pixel (note this can't be a valid pixel--one of RGB must be >= 128)</span></div> -<div class="line"><a name="l06552"></a><span class="lineno"> 6552</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> rgbe[4];</div> -<div class="line"><a name="l06553"></a><span class="lineno"> 6553</span>  rgbe[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) c1;</div> -<div class="line"><a name="l06554"></a><span class="lineno"> 6554</span>  rgbe[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) c2;</div> -<div class="line"><a name="l06555"></a><span class="lineno"> 6555</span>  rgbe[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) len;</div> -<div class="line"><a name="l06556"></a><span class="lineno"> 6556</span>  rgbe[3] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>) stbi__get8(s);</div> -<div class="line"><a name="l06557"></a><span class="lineno"> 6557</span>  stbi__hdr_convert(hdr_data, rgbe, req_comp);</div> -<div class="line"><a name="l06558"></a><span class="lineno"> 6558</span>  i = 1;</div> -<div class="line"><a name="l06559"></a><span class="lineno"> 6559</span>  j = 0;</div> -<div class="line"><a name="l06560"></a><span class="lineno"> 6560</span>  STBI_FREE(scanline);</div> -<div class="line"><a name="l06561"></a><span class="lineno"> 6561</span>  <span class="keywordflow">goto</span> main_decode_loop; <span class="comment">// yes, this makes no sense</span></div> -<div class="line"><a name="l06562"></a><span class="lineno"> 6562</span>  }</div> -<div class="line"><a name="l06563"></a><span class="lineno"> 6563</span>  len <<= 8;</div> -<div class="line"><a name="l06564"></a><span class="lineno"> 6564</span>  len |= stbi__get8(s);</div> -<div class="line"><a name="l06565"></a><span class="lineno"> 6565</span>  <span class="keywordflow">if</span> (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"invalid decoded scanline length"</span>, <span class="stringliteral">"corrupt HDR"</span>); }</div> -<div class="line"><a name="l06566"></a><span class="lineno"> 6566</span>  <span class="keywordflow">if</span> (scanline == NULL) {</div> -<div class="line"><a name="l06567"></a><span class="lineno"> 6567</span>  scanline = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad2(width, 4, 0);</div> -<div class="line"><a name="l06568"></a><span class="lineno"> 6568</span>  <span class="keywordflow">if</span> (!scanline) {</div> -<div class="line"><a name="l06569"></a><span class="lineno"> 6569</span>  STBI_FREE(hdr_data);</div> -<div class="line"><a name="l06570"></a><span class="lineno"> 6570</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l06571"></a><span class="lineno"> 6571</span>  }</div> -<div class="line"><a name="l06572"></a><span class="lineno"> 6572</span>  }</div> -<div class="line"><a name="l06573"></a><span class="lineno"> 6573</span> </div> -<div class="line"><a name="l06574"></a><span class="lineno"> 6574</span>  <span class="keywordflow">for</span> (k = 0; k < 4; ++k) {</div> -<div class="line"><a name="l06575"></a><span class="lineno"> 6575</span>  <span class="keywordtype">int</span> nleft;</div> -<div class="line"><a name="l06576"></a><span class="lineno"> 6576</span>  i = 0;</div> -<div class="line"><a name="l06577"></a><span class="lineno"> 6577</span>  <span class="keywordflow">while</span> ((nleft = width - i) > 0) {</div> -<div class="line"><a name="l06578"></a><span class="lineno"> 6578</span>  count = stbi__get8(s);</div> -<div class="line"><a name="l06579"></a><span class="lineno"> 6579</span>  <span class="keywordflow">if</span> (count > 128) {</div> -<div class="line"><a name="l06580"></a><span class="lineno"> 6580</span>  <span class="comment">// Run</span></div> -<div class="line"><a name="l06581"></a><span class="lineno"> 6581</span>  value = stbi__get8(s);</div> -<div class="line"><a name="l06582"></a><span class="lineno"> 6582</span>  count -= 128;</div> -<div class="line"><a name="l06583"></a><span class="lineno"> 6583</span>  <span class="keywordflow">if</span> (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"corrupt"</span>, <span class="stringliteral">"bad RLE data in HDR"</span>); }</div> -<div class="line"><a name="l06584"></a><span class="lineno"> 6584</span>  <span class="keywordflow">for</span> (z = 0; z < count; ++z)</div> -<div class="line"><a name="l06585"></a><span class="lineno"> 6585</span>  scanline[i++ * 4 + k] = value;</div> -<div class="line"><a name="l06586"></a><span class="lineno"> 6586</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l06587"></a><span class="lineno"> 6587</span>  <span class="comment">// Dump</span></div> -<div class="line"><a name="l06588"></a><span class="lineno"> 6588</span>  <span class="keywordflow">if</span> (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"corrupt"</span>, <span class="stringliteral">"bad RLE data in HDR"</span>); }</div> -<div class="line"><a name="l06589"></a><span class="lineno"> 6589</span>  <span class="keywordflow">for</span> (z = 0; z < count; ++z)</div> -<div class="line"><a name="l06590"></a><span class="lineno"> 6590</span>  scanline[i++ * 4 + k] = stbi__get8(s);</div> -<div class="line"><a name="l06591"></a><span class="lineno"> 6591</span>  }</div> -<div class="line"><a name="l06592"></a><span class="lineno"> 6592</span>  }</div> -<div class="line"><a name="l06593"></a><span class="lineno"> 6593</span>  }</div> -<div class="line"><a name="l06594"></a><span class="lineno"> 6594</span>  <span class="keywordflow">for</span> (i=0; i < width; ++i)</div> -<div class="line"><a name="l06595"></a><span class="lineno"> 6595</span>  stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp);</div> -<div class="line"><a name="l06596"></a><span class="lineno"> 6596</span>  }</div> -<div class="line"><a name="l06597"></a><span class="lineno"> 6597</span>  <span class="keywordflow">if</span> (scanline)</div> -<div class="line"><a name="l06598"></a><span class="lineno"> 6598</span>  STBI_FREE(scanline);</div> -<div class="line"><a name="l06599"></a><span class="lineno"> 6599</span>  }</div> -<div class="line"><a name="l06600"></a><span class="lineno"> 6600</span> </div> -<div class="line"><a name="l06601"></a><span class="lineno"> 6601</span>  <span class="keywordflow">return</span> hdr_data;</div> -<div class="line"><a name="l06602"></a><span class="lineno"> 6602</span> }</div> -<div class="line"><a name="l06603"></a><span class="lineno"> 6603</span> </div> -<div class="line"><a name="l06604"></a><span class="lineno"> 6604</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06605"></a><span class="lineno"> 6605</span> {</div> -<div class="line"><a name="l06606"></a><span class="lineno"> 6606</span>  <span class="keywordtype">char</span> buffer[STBI__HDR_BUFLEN];</div> -<div class="line"><a name="l06607"></a><span class="lineno"> 6607</span>  <span class="keywordtype">char</span> *token;</div> -<div class="line"><a name="l06608"></a><span class="lineno"> 6608</span>  <span class="keywordtype">int</span> valid = 0;</div> -<div class="line"><a name="l06609"></a><span class="lineno"> 6609</span>  <span class="keywordtype">int</span> dummy;</div> -<div class="line"><a name="l06610"></a><span class="lineno"> 6610</span> </div> -<div class="line"><a name="l06611"></a><span class="lineno"> 6611</span>  <span class="keywordflow">if</span> (!x) x = &dummy;</div> -<div class="line"><a name="l06612"></a><span class="lineno"> 6612</span>  <span class="keywordflow">if</span> (!y) y = &dummy;</div> -<div class="line"><a name="l06613"></a><span class="lineno"> 6613</span>  <span class="keywordflow">if</span> (!comp) comp = &dummy;</div> -<div class="line"><a name="l06614"></a><span class="lineno"> 6614</span> </div> -<div class="line"><a name="l06615"></a><span class="lineno"> 6615</span>  <span class="keywordflow">if</span> (stbi__hdr_test(s) == 0) {</div> -<div class="line"><a name="l06616"></a><span class="lineno"> 6616</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06617"></a><span class="lineno"> 6617</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06618"></a><span class="lineno"> 6618</span>  }</div> -<div class="line"><a name="l06619"></a><span class="lineno"> 6619</span> </div> -<div class="line"><a name="l06620"></a><span class="lineno"> 6620</span>  <span class="keywordflow">for</span>(;;) {</div> -<div class="line"><a name="l06621"></a><span class="lineno"> 6621</span>  token = stbi__hdr_gettoken(s,buffer);</div> -<div class="line"><a name="l06622"></a><span class="lineno"> 6622</span>  <span class="keywordflow">if</span> (token[0] == 0) <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06623"></a><span class="lineno"> 6623</span>  <span class="keywordflow">if</span> (strcmp(token, <span class="stringliteral">"FORMAT=32-bit_rle_rgbe"</span>) == 0) valid = 1;</div> -<div class="line"><a name="l06624"></a><span class="lineno"> 6624</span>  }</div> -<div class="line"><a name="l06625"></a><span class="lineno"> 6625</span> </div> -<div class="line"><a name="l06626"></a><span class="lineno"> 6626</span>  <span class="keywordflow">if</span> (!valid) {</div> -<div class="line"><a name="l06627"></a><span class="lineno"> 6627</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06628"></a><span class="lineno"> 6628</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06629"></a><span class="lineno"> 6629</span>  }</div> -<div class="line"><a name="l06630"></a><span class="lineno"> 6630</span>  token = stbi__hdr_gettoken(s,buffer);</div> -<div class="line"><a name="l06631"></a><span class="lineno"> 6631</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"-Y "</span>, 3)) {</div> -<div class="line"><a name="l06632"></a><span class="lineno"> 6632</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06633"></a><span class="lineno"> 6633</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06634"></a><span class="lineno"> 6634</span>  }</div> -<div class="line"><a name="l06635"></a><span class="lineno"> 6635</span>  token += 3;</div> -<div class="line"><a name="l06636"></a><span class="lineno"> 6636</span>  *y = (int) strtol(token, &token, 10);</div> -<div class="line"><a name="l06637"></a><span class="lineno"> 6637</span>  <span class="keywordflow">while</span> (*token == <span class="charliteral">' '</span>) ++token;</div> -<div class="line"><a name="l06638"></a><span class="lineno"> 6638</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"+X "</span>, 3)) {</div> -<div class="line"><a name="l06639"></a><span class="lineno"> 6639</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06640"></a><span class="lineno"> 6640</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06641"></a><span class="lineno"> 6641</span>  }</div> -<div class="line"><a name="l06642"></a><span class="lineno"> 6642</span>  token += 3;</div> -<div class="line"><a name="l06643"></a><span class="lineno"> 6643</span>  *x = (int) strtol(token, NULL, 10);</div> -<div class="line"><a name="l06644"></a><span class="lineno"> 6644</span>  *comp = 3;</div> -<div class="line"><a name="l06645"></a><span class="lineno"> 6645</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06646"></a><span class="lineno"> 6646</span> }</div> -<div class="line"><a name="l06647"></a><span class="lineno"> 6647</span> <span class="preprocessor">#endif // STBI_NO_HDR</span></div> -<div class="line"><a name="l06648"></a><span class="lineno"> 6648</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06649"></a><span class="lineno"> 6649</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> -<div class="line"><a name="l06650"></a><span class="lineno"> 6650</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06651"></a><span class="lineno"> 6651</span> {</div> -<div class="line"><a name="l06652"></a><span class="lineno"> 6652</span>  <span class="keywordtype">void</span> *p;</div> -<div class="line"><a name="l06653"></a><span class="lineno"> 6653</span>  stbi__bmp_data info;</div> -<div class="line"><a name="l06654"></a><span class="lineno"> 6654</span> </div> -<div class="line"><a name="l06655"></a><span class="lineno"> 6655</span>  info.all_a = 255;</div> -<div class="line"><a name="l06656"></a><span class="lineno"> 6656</span>  p = stbi__bmp_parse_header(s, &info);</div> -<div class="line"><a name="l06657"></a><span class="lineno"> 6657</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06658"></a><span class="lineno"> 6658</span>  <span class="keywordflow">if</span> (p == NULL)</div> -<div class="line"><a name="l06659"></a><span class="lineno"> 6659</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06660"></a><span class="lineno"> 6660</span>  <span class="keywordflow">if</span> (x) *x = s->img_x;</div> -<div class="line"><a name="l06661"></a><span class="lineno"> 6661</span>  <span class="keywordflow">if</span> (y) *y = s->img_y;</div> -<div class="line"><a name="l06662"></a><span class="lineno"> 6662</span>  <span class="keywordflow">if</span> (comp) *comp = info.ma ? 4 : 3;</div> -<div class="line"><a name="l06663"></a><span class="lineno"> 6663</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06664"></a><span class="lineno"> 6664</span> }</div> -<div class="line"><a name="l06665"></a><span class="lineno"> 6665</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l06666"></a><span class="lineno"> 6666</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06667"></a><span class="lineno"> 6667</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> -<div class="line"><a name="l06668"></a><span class="lineno"> 6668</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06669"></a><span class="lineno"> 6669</span> {</div> -<div class="line"><a name="l06670"></a><span class="lineno"> 6670</span>  <span class="keywordtype">int</span> channelCount, dummy;</div> -<div class="line"><a name="l06671"></a><span class="lineno"> 6671</span>  <span class="keywordflow">if</span> (!x) x = &dummy;</div> -<div class="line"><a name="l06672"></a><span class="lineno"> 6672</span>  <span class="keywordflow">if</span> (!y) y = &dummy;</div> -<div class="line"><a name="l06673"></a><span class="lineno"> 6673</span>  <span class="keywordflow">if</span> (!comp) comp = &dummy;</div> -<div class="line"><a name="l06674"></a><span class="lineno"> 6674</span>  <span class="keywordflow">if</span> (stbi__get32be(s) != 0x38425053) {</div> -<div class="line"><a name="l06675"></a><span class="lineno"> 6675</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06676"></a><span class="lineno"> 6676</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06677"></a><span class="lineno"> 6677</span>  }</div> -<div class="line"><a name="l06678"></a><span class="lineno"> 6678</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 1) {</div> -<div class="line"><a name="l06679"></a><span class="lineno"> 6679</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06680"></a><span class="lineno"> 6680</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06681"></a><span class="lineno"> 6681</span>  }</div> -<div class="line"><a name="l06682"></a><span class="lineno"> 6682</span>  stbi__skip(s, 6);</div> -<div class="line"><a name="l06683"></a><span class="lineno"> 6683</span>  channelCount = stbi__get16be(s);</div> -<div class="line"><a name="l06684"></a><span class="lineno"> 6684</span>  <span class="keywordflow">if</span> (channelCount < 0 || channelCount > 16) {</div> -<div class="line"><a name="l06685"></a><span class="lineno"> 6685</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06686"></a><span class="lineno"> 6686</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06687"></a><span class="lineno"> 6687</span>  }</div> -<div class="line"><a name="l06688"></a><span class="lineno"> 6688</span>  *y = stbi__get32be(s);</div> -<div class="line"><a name="l06689"></a><span class="lineno"> 6689</span>  *x = stbi__get32be(s);</div> -<div class="line"><a name="l06690"></a><span class="lineno"> 6690</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 8) {</div> -<div class="line"><a name="l06691"></a><span class="lineno"> 6691</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06692"></a><span class="lineno"> 6692</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06693"></a><span class="lineno"> 6693</span>  }</div> -<div class="line"><a name="l06694"></a><span class="lineno"> 6694</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 3) {</div> -<div class="line"><a name="l06695"></a><span class="lineno"> 6695</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06696"></a><span class="lineno"> 6696</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06697"></a><span class="lineno"> 6697</span>  }</div> -<div class="line"><a name="l06698"></a><span class="lineno"> 6698</span>  *comp = 4;</div> -<div class="line"><a name="l06699"></a><span class="lineno"> 6699</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06700"></a><span class="lineno"> 6700</span> }</div> -<div class="line"><a name="l06701"></a><span class="lineno"> 6701</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l06702"></a><span class="lineno"> 6702</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06703"></a><span class="lineno"> 6703</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> -<div class="line"><a name="l06704"></a><span class="lineno"> 6704</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06705"></a><span class="lineno"> 6705</span> {</div> -<div class="line"><a name="l06706"></a><span class="lineno"> 6706</span>  <span class="keywordtype">int</span> act_comp=0,num_packets=0,chained,dummy;</div> -<div class="line"><a name="l06707"></a><span class="lineno"> 6707</span>  stbi__pic_packet packets[10];</div> -<div class="line"><a name="l06708"></a><span class="lineno"> 6708</span> </div> -<div class="line"><a name="l06709"></a><span class="lineno"> 6709</span>  <span class="keywordflow">if</span> (!x) x = &dummy;</div> -<div class="line"><a name="l06710"></a><span class="lineno"> 6710</span>  <span class="keywordflow">if</span> (!y) y = &dummy;</div> -<div class="line"><a name="l06711"></a><span class="lineno"> 6711</span>  <span class="keywordflow">if</span> (!comp) comp = &dummy;</div> -<div class="line"><a name="l06712"></a><span class="lineno"> 6712</span> </div> -<div class="line"><a name="l06713"></a><span class="lineno"> 6713</span>  <span class="keywordflow">if</span> (!stbi__pic_is4(s,<span class="stringliteral">"\x53\x80\xF6\x34"</span>)) {</div> -<div class="line"><a name="l06714"></a><span class="lineno"> 6714</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06715"></a><span class="lineno"> 6715</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06716"></a><span class="lineno"> 6716</span>  }</div> +<div class="line"><a name="l06518"></a><span class="lineno"> 6518</span>  <span class="comment">// Read the rows and columns of the image.</span></div> +<div class="line"><a name="l06519"></a><span class="lineno"> 6519</span>  h = stbi__get32be(s);</div> +<div class="line"><a name="l06520"></a><span class="lineno"> 6520</span>  w = stbi__get32be(s);</div> +<div class="line"><a name="l06521"></a><span class="lineno"> 6521</span> </div> +<div class="line"><a name="l06522"></a><span class="lineno"> 6522</span>  <span class="comment">// Make sure the depth is 8 bits.</span></div> +<div class="line"><a name="l06523"></a><span class="lineno"> 6523</span>  bitdepth = stbi__get16be(s);</div> +<div class="line"><a name="l06524"></a><span class="lineno"> 6524</span>  <span class="keywordflow">if</span> (bitdepth != 8 && bitdepth != 16)</div> +<div class="line"><a name="l06525"></a><span class="lineno"> 6525</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unsupported bit depth"</span>,</div> +<div class="line"><a name="l06526"></a><span class="lineno"> 6526</span>  <span class="stringliteral">"PSD bit depth is not 8 or 16 bit"</span>);</div> +<div class="line"><a name="l06527"></a><span class="lineno"> 6527</span> </div> +<div class="line"><a name="l06528"></a><span class="lineno"> 6528</span>  <span class="comment">// Make sure the color mode is RGB.</span></div> +<div class="line"><a name="l06529"></a><span class="lineno"> 6529</span>  <span class="comment">// Valid options are:</span></div> +<div class="line"><a name="l06530"></a><span class="lineno"> 6530</span>  <span class="comment">// 0: Bitmap</span></div> +<div class="line"><a name="l06531"></a><span class="lineno"> 6531</span>  <span class="comment">// 1: Grayscale</span></div> +<div class="line"><a name="l06532"></a><span class="lineno"> 6532</span>  <span class="comment">// 2: Indexed color</span></div> +<div class="line"><a name="l06533"></a><span class="lineno"> 6533</span>  <span class="comment">// 3: RGB color</span></div> +<div class="line"><a name="l06534"></a><span class="lineno"> 6534</span>  <span class="comment">// 4: CMYK color</span></div> +<div class="line"><a name="l06535"></a><span class="lineno"> 6535</span>  <span class="comment">// 7: Multichannel</span></div> +<div class="line"><a name="l06536"></a><span class="lineno"> 6536</span>  <span class="comment">// 8: Duotone</span></div> +<div class="line"><a name="l06537"></a><span class="lineno"> 6537</span>  <span class="comment">// 9: Lab color</span></div> +<div class="line"><a name="l06538"></a><span class="lineno"> 6538</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 3)</div> +<div class="line"><a name="l06539"></a><span class="lineno"> 6539</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"wrong color format"</span>,</div> +<div class="line"><a name="l06540"></a><span class="lineno"> 6540</span>  <span class="stringliteral">"PSD is not in RGB color format"</span>);</div> +<div class="line"><a name="l06541"></a><span class="lineno"> 6541</span> </div> +<div class="line"><a name="l06542"></a><span class="lineno"> 6542</span>  <span class="comment">// Skip the Mode Data. (It's the palette for indexed color; other info for</span></div> +<div class="line"><a name="l06543"></a><span class="lineno"> 6543</span>  <span class="comment">// other modes.)</span></div> +<div class="line"><a name="l06544"></a><span class="lineno"> 6544</span>  stbi__skip(s, stbi__get32be(s));</div> +<div class="line"><a name="l06545"></a><span class="lineno"> 6545</span> </div> +<div class="line"><a name="l06546"></a><span class="lineno"> 6546</span>  <span class="comment">// Skip the image resources. (resolution, pen tool paths, etc)</span></div> +<div class="line"><a name="l06547"></a><span class="lineno"> 6547</span>  stbi__skip(s, stbi__get32be(s));</div> +<div class="line"><a name="l06548"></a><span class="lineno"> 6548</span> </div> +<div class="line"><a name="l06549"></a><span class="lineno"> 6549</span>  <span class="comment">// Skip the reserved data.</span></div> +<div class="line"><a name="l06550"></a><span class="lineno"> 6550</span>  stbi__skip(s, stbi__get32be(s));</div> +<div class="line"><a name="l06551"></a><span class="lineno"> 6551</span> </div> +<div class="line"><a name="l06552"></a><span class="lineno"> 6552</span>  <span class="comment">// Find out if the data is compressed.</span></div> +<div class="line"><a name="l06553"></a><span class="lineno"> 6553</span>  <span class="comment">// Known values:</span></div> +<div class="line"><a name="l06554"></a><span class="lineno"> 6554</span>  <span class="comment">// 0: no compression</span></div> +<div class="line"><a name="l06555"></a><span class="lineno"> 6555</span>  <span class="comment">// 1: RLE compressed</span></div> +<div class="line"><a name="l06556"></a><span class="lineno"> 6556</span>  compression = stbi__get16be(s);</div> +<div class="line"><a name="l06557"></a><span class="lineno"> 6557</span>  <span class="keywordflow">if</span> (compression > 1)</div> +<div class="line"><a name="l06558"></a><span class="lineno"> 6558</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad compression"</span>,</div> +<div class="line"><a name="l06559"></a><span class="lineno"> 6559</span>  <span class="stringliteral">"PSD has an unknown compression format"</span>);</div> +<div class="line"><a name="l06560"></a><span class="lineno"> 6560</span> </div> +<div class="line"><a name="l06561"></a><span class="lineno"> 6561</span>  <span class="comment">// Check size</span></div> +<div class="line"><a name="l06562"></a><span class="lineno"> 6562</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(4, w, h, 0))</div> +<div class="line"><a name="l06563"></a><span class="lineno"> 6563</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"Corrupt PSD"</span>);</div> +<div class="line"><a name="l06564"></a><span class="lineno"> 6564</span> </div> +<div class="line"><a name="l06565"></a><span class="lineno"> 6565</span>  <span class="comment">// Create the destination image.</span></div> +<div class="line"><a name="l06566"></a><span class="lineno"> 6566</span> </div> +<div class="line"><a name="l06567"></a><span class="lineno"> 6567</span>  <span class="keywordflow">if</span> (!compression && bitdepth == 16 && bpc == 16) {</div> +<div class="line"><a name="l06568"></a><span class="lineno"> 6568</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(8, w, h, 0);</div> +<div class="line"><a name="l06569"></a><span class="lineno"> 6569</span>  ri->bits_per_channel = 16;</div> +<div class="line"><a name="l06570"></a><span class="lineno"> 6570</span>  } <span class="keywordflow">else</span></div> +<div class="line"><a name="l06571"></a><span class="lineno"> 6571</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc(4 * w * h);</div> +<div class="line"><a name="l06572"></a><span class="lineno"> 6572</span> </div> +<div class="line"><a name="l06573"></a><span class="lineno"> 6573</span>  <span class="keywordflow">if</span> (!out)</div> +<div class="line"><a name="l06574"></a><span class="lineno"> 6574</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l06575"></a><span class="lineno"> 6575</span>  pixelCount = w * h;</div> +<div class="line"><a name="l06576"></a><span class="lineno"> 6576</span> </div> +<div class="line"><a name="l06577"></a><span class="lineno"> 6577</span>  <span class="comment">// Initialize the data to zero.</span></div> +<div class="line"><a name="l06578"></a><span class="lineno"> 6578</span>  <span class="comment">// memset( out, 0, pixelCount * 4 );</span></div> +<div class="line"><a name="l06579"></a><span class="lineno"> 6579</span> </div> +<div class="line"><a name="l06580"></a><span class="lineno"> 6580</span>  <span class="comment">// Finally, the image data.</span></div> +<div class="line"><a name="l06581"></a><span class="lineno"> 6581</span>  <span class="keywordflow">if</span> (compression) {</div> +<div class="line"><a name="l06582"></a><span class="lineno"> 6582</span>  <span class="comment">// RLE as used by .PSD and .TIFF</span></div> +<div class="line"><a name="l06583"></a><span class="lineno"> 6583</span>  <span class="comment">// Loop until you get the number of unpacked bytes you are expecting:</span></div> +<div class="line"><a name="l06584"></a><span class="lineno"> 6584</span>  <span class="comment">// Read the next source byte into n.</span></div> +<div class="line"><a name="l06585"></a><span class="lineno"> 6585</span>  <span class="comment">// If n is between 0 and 127 inclusive, copy the next n+1 bytes</span></div> +<div class="line"><a name="l06586"></a><span class="lineno"> 6586</span>  <span class="comment">// literally. Else if n is between -127 and -1 inclusive, copy the</span></div> +<div class="line"><a name="l06587"></a><span class="lineno"> 6587</span>  <span class="comment">// next byte -n+1 times. Else if n is 128, noop.</span></div> +<div class="line"><a name="l06588"></a><span class="lineno"> 6588</span>  <span class="comment">// Endloop</span></div> +<div class="line"><a name="l06589"></a><span class="lineno"> 6589</span> </div> +<div class="line"><a name="l06590"></a><span class="lineno"> 6590</span>  <span class="comment">// The RLE-compressed data is preceeded by a 2-byte data count for each</span></div> +<div class="line"><a name="l06591"></a><span class="lineno"> 6591</span>  <span class="comment">// row in the data, which we're going to just skip.</span></div> +<div class="line"><a name="l06592"></a><span class="lineno"> 6592</span>  stbi__skip(s, h * channelCount * 2);</div> +<div class="line"><a name="l06593"></a><span class="lineno"> 6593</span> </div> +<div class="line"><a name="l06594"></a><span class="lineno"> 6594</span>  <span class="comment">// Read the RLE data by channel.</span></div> +<div class="line"><a name="l06595"></a><span class="lineno"> 6595</span>  <span class="keywordflow">for</span> (channel = 0; channel < 4; channel++) {</div> +<div class="line"><a name="l06596"></a><span class="lineno"> 6596</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p;</div> +<div class="line"><a name="l06597"></a><span class="lineno"> 6597</span> </div> +<div class="line"><a name="l06598"></a><span class="lineno"> 6598</span>  p = out + channel;</div> +<div class="line"><a name="l06599"></a><span class="lineno"> 6599</span>  <span class="keywordflow">if</span> (channel >= channelCount) {</div> +<div class="line"><a name="l06600"></a><span class="lineno"> 6600</span>  <span class="comment">// Fill this channel with default data.</span></div> +<div class="line"><a name="l06601"></a><span class="lineno"> 6601</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> +<div class="line"><a name="l06602"></a><span class="lineno"> 6602</span>  *p = (channel == 3 ? 255 : 0);</div> +<div class="line"><a name="l06603"></a><span class="lineno"> 6603</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06604"></a><span class="lineno"> 6604</span>  <span class="comment">// Read the RLE data.</span></div> +<div class="line"><a name="l06605"></a><span class="lineno"> 6605</span>  <span class="keywordflow">if</span> (!stbi__psd_decode_rle(s, p, pixelCount)) {</div> +<div class="line"><a name="l06606"></a><span class="lineno"> 6606</span>  STBI_FREE(out);</div> +<div class="line"><a name="l06607"></a><span class="lineno"> 6607</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"corrupt"</span>, <span class="stringliteral">"bad RLE data"</span>);</div> +<div class="line"><a name="l06608"></a><span class="lineno"> 6608</span>  }</div> +<div class="line"><a name="l06609"></a><span class="lineno"> 6609</span>  }</div> +<div class="line"><a name="l06610"></a><span class="lineno"> 6610</span>  }</div> +<div class="line"><a name="l06611"></a><span class="lineno"> 6611</span> </div> +<div class="line"><a name="l06612"></a><span class="lineno"> 6612</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06613"></a><span class="lineno"> 6613</span>  <span class="comment">// We're at the raw image data. It's each channel in order (Red, Green,</span></div> +<div class="line"><a name="l06614"></a><span class="lineno"> 6614</span>  <span class="comment">// Blue, Alpha, ...) where each channel consists of an 8-bit (or 16-bit)</span></div> +<div class="line"><a name="l06615"></a><span class="lineno"> 6615</span>  <span class="comment">// value for each pixel in the image.</span></div> +<div class="line"><a name="l06616"></a><span class="lineno"> 6616</span> </div> +<div class="line"><a name="l06617"></a><span class="lineno"> 6617</span>  <span class="comment">// Read the data by channel.</span></div> +<div class="line"><a name="l06618"></a><span class="lineno"> 6618</span>  <span class="keywordflow">for</span> (channel = 0; channel < 4; channel++) {</div> +<div class="line"><a name="l06619"></a><span class="lineno"> 6619</span>  <span class="keywordflow">if</span> (channel >= channelCount) {</div> +<div class="line"><a name="l06620"></a><span class="lineno"> 6620</span>  <span class="comment">// Fill this channel with default data.</span></div> +<div class="line"><a name="l06621"></a><span class="lineno"> 6621</span>  <span class="keywordflow">if</span> (bitdepth == 16 && bpc == 16) {</div> +<div class="line"><a name="l06622"></a><span class="lineno"> 6622</span>  stbi__uint16 *q = ((stbi__uint16 *)out) + channel;</div> +<div class="line"><a name="l06623"></a><span class="lineno"> 6623</span>  stbi__uint16 val = channel == 3 ? 65535 : 0;</div> +<div class="line"><a name="l06624"></a><span class="lineno"> 6624</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, q += 4)</div> +<div class="line"><a name="l06625"></a><span class="lineno"> 6625</span>  *q = val;</div> +<div class="line"><a name="l06626"></a><span class="lineno"> 6626</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06627"></a><span class="lineno"> 6627</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = out + channel;</div> +<div class="line"><a name="l06628"></a><span class="lineno"> 6628</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> val = channel == 3 ? 255 : 0;</div> +<div class="line"><a name="l06629"></a><span class="lineno"> 6629</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> +<div class="line"><a name="l06630"></a><span class="lineno"> 6630</span>  *p = val;</div> +<div class="line"><a name="l06631"></a><span class="lineno"> 6631</span>  }</div> +<div class="line"><a name="l06632"></a><span class="lineno"> 6632</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06633"></a><span class="lineno"> 6633</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 16) { <span class="comment">// output bpc</span></div> +<div class="line"><a name="l06634"></a><span class="lineno"> 6634</span>  stbi__uint16 *q = ((stbi__uint16 *)out) + channel;</div> +<div class="line"><a name="l06635"></a><span class="lineno"> 6635</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, q += 4)</div> +<div class="line"><a name="l06636"></a><span class="lineno"> 6636</span>  *q = (stbi__uint16)stbi__get16be(s);</div> +<div class="line"><a name="l06637"></a><span class="lineno"> 6637</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06638"></a><span class="lineno"> 6638</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = out + channel;</div> +<div class="line"><a name="l06639"></a><span class="lineno"> 6639</span>  <span class="keywordflow">if</span> (bitdepth == 16) { <span class="comment">// input bpc</span></div> +<div class="line"><a name="l06640"></a><span class="lineno"> 6640</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> +<div class="line"><a name="l06641"></a><span class="lineno"> 6641</span>  *p = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)(stbi__get16be(s) >> 8);</div> +<div class="line"><a name="l06642"></a><span class="lineno"> 6642</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06643"></a><span class="lineno"> 6643</span>  <span class="keywordflow">for</span> (i = 0; i < pixelCount; i++, p += 4)</div> +<div class="line"><a name="l06644"></a><span class="lineno"> 6644</span>  *p = stbi__get8(s);</div> +<div class="line"><a name="l06645"></a><span class="lineno"> 6645</span>  }</div> +<div class="line"><a name="l06646"></a><span class="lineno"> 6646</span>  }</div> +<div class="line"><a name="l06647"></a><span class="lineno"> 6647</span>  }</div> +<div class="line"><a name="l06648"></a><span class="lineno"> 6648</span>  }</div> +<div class="line"><a name="l06649"></a><span class="lineno"> 6649</span>  }</div> +<div class="line"><a name="l06650"></a><span class="lineno"> 6650</span> </div> +<div class="line"><a name="l06651"></a><span class="lineno"> 6651</span>  <span class="comment">// remove weird white matte from PSD</span></div> +<div class="line"><a name="l06652"></a><span class="lineno"> 6652</span>  <span class="keywordflow">if</span> (channelCount >= 4) {</div> +<div class="line"><a name="l06653"></a><span class="lineno"> 6653</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 16) {</div> +<div class="line"><a name="l06654"></a><span class="lineno"> 6654</span>  <span class="keywordflow">for</span> (i = 0; i < w * h; ++i) {</div> +<div class="line"><a name="l06655"></a><span class="lineno"> 6655</span>  stbi__uint16 *pixel = (stbi__uint16 *)out + 4 * i;</div> +<div class="line"><a name="l06656"></a><span class="lineno"> 6656</span>  <span class="keywordflow">if</span> (pixel[3] != 0 && pixel[3] != 65535) {</div> +<div class="line"><a name="l06657"></a><span class="lineno"> 6657</span>  <span class="keywordtype">float</span> a = pixel[3] / 65535.0f;</div> +<div class="line"><a name="l06658"></a><span class="lineno"> 6658</span>  <span class="keywordtype">float</span> ra = 1.0f / a;</div> +<div class="line"><a name="l06659"></a><span class="lineno"> 6659</span>  <span class="keywordtype">float</span> inv_a = 65535.0f * (1 - ra);</div> +<div class="line"><a name="l06660"></a><span class="lineno"> 6660</span>  pixel[0] = (stbi__uint16)(pixel[0] * ra + inv_a);</div> +<div class="line"><a name="l06661"></a><span class="lineno"> 6661</span>  pixel[1] = (stbi__uint16)(pixel[1] * ra + inv_a);</div> +<div class="line"><a name="l06662"></a><span class="lineno"> 6662</span>  pixel[2] = (stbi__uint16)(pixel[2] * ra + inv_a);</div> +<div class="line"><a name="l06663"></a><span class="lineno"> 6663</span>  }</div> +<div class="line"><a name="l06664"></a><span class="lineno"> 6664</span>  }</div> +<div class="line"><a name="l06665"></a><span class="lineno"> 6665</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l06666"></a><span class="lineno"> 6666</span>  <span class="keywordflow">for</span> (i = 0; i < w * h; ++i) {</div> +<div class="line"><a name="l06667"></a><span class="lineno"> 6667</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pixel = out + 4 * i;</div> +<div class="line"><a name="l06668"></a><span class="lineno"> 6668</span>  <span class="keywordflow">if</span> (pixel[3] != 0 && pixel[3] != 255) {</div> +<div class="line"><a name="l06669"></a><span class="lineno"> 6669</span>  <span class="keywordtype">float</span> a = pixel[3] / 255.0f;</div> +<div class="line"><a name="l06670"></a><span class="lineno"> 6670</span>  <span class="keywordtype">float</span> ra = 1.0f / a;</div> +<div class="line"><a name="l06671"></a><span class="lineno"> 6671</span>  <span class="keywordtype">float</span> inv_a = 255.0f * (1 - ra);</div> +<div class="line"><a name="l06672"></a><span class="lineno"> 6672</span>  pixel[0] = (<span class="keywordtype">unsigned</span> char)(pixel[0] * ra + inv_a);</div> +<div class="line"><a name="l06673"></a><span class="lineno"> 6673</span>  pixel[1] = (<span class="keywordtype">unsigned</span> char)(pixel[1] * ra + inv_a);</div> +<div class="line"><a name="l06674"></a><span class="lineno"> 6674</span>  pixel[2] = (<span class="keywordtype">unsigned</span> char)(pixel[2] * ra + inv_a);</div> +<div class="line"><a name="l06675"></a><span class="lineno"> 6675</span>  }</div> +<div class="line"><a name="l06676"></a><span class="lineno"> 6676</span>  }</div> +<div class="line"><a name="l06677"></a><span class="lineno"> 6677</span>  }</div> +<div class="line"><a name="l06678"></a><span class="lineno"> 6678</span>  }</div> +<div class="line"><a name="l06679"></a><span class="lineno"> 6679</span> </div> +<div class="line"><a name="l06680"></a><span class="lineno"> 6680</span>  <span class="comment">// convert to desired output format</span></div> +<div class="line"><a name="l06681"></a><span class="lineno"> 6681</span>  <span class="keywordflow">if</span> (req_comp && req_comp != 4) {</div> +<div class="line"><a name="l06682"></a><span class="lineno"> 6682</span>  <span class="keywordflow">if</span> (ri->bits_per_channel == 16)</div> +<div class="line"><a name="l06683"></a><span class="lineno"> 6683</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__convert_format16((stbi__uint16 *)out, 4,</div> +<div class="line"><a name="l06684"></a><span class="lineno"> 6684</span>  req_comp, w, h);</div> +<div class="line"><a name="l06685"></a><span class="lineno"> 6685</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l06686"></a><span class="lineno"> 6686</span>  out = stbi__convert_format(out, 4, req_comp, w, h);</div> +<div class="line"><a name="l06687"></a><span class="lineno"> 6687</span>  <span class="keywordflow">if</span> (out == NULL)</div> +<div class="line"><a name="l06688"></a><span class="lineno"> 6688</span>  <span class="keywordflow">return</span> out; <span class="comment">// stbi__convert_format frees input on failure</span></div> +<div class="line"><a name="l06689"></a><span class="lineno"> 6689</span>  }</div> +<div class="line"><a name="l06690"></a><span class="lineno"> 6690</span> </div> +<div class="line"><a name="l06691"></a><span class="lineno"> 6691</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l06692"></a><span class="lineno"> 6692</span>  *comp = 4;</div> +<div class="line"><a name="l06693"></a><span class="lineno"> 6693</span>  *y = h;</div> +<div class="line"><a name="l06694"></a><span class="lineno"> 6694</span>  *x = w;</div> +<div class="line"><a name="l06695"></a><span class="lineno"> 6695</span> </div> +<div class="line"><a name="l06696"></a><span class="lineno"> 6696</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l06697"></a><span class="lineno"> 6697</span> }</div> +<div class="line"><a name="l06698"></a><span class="lineno"> 6698</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l06699"></a><span class="lineno"> 6699</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l06700"></a><span class="lineno"> 6700</span>  <span class="comment">// *************************************************************************************************</span></div> +<div class="line"><a name="l06701"></a><span class="lineno"> 6701</span>  <span class="comment">// Softimage PIC loader</span></div> +<div class="line"><a name="l06702"></a><span class="lineno"> 6702</span>  <span class="comment">// by Tom Seddon</span></div> +<div class="line"><a name="l06703"></a><span class="lineno"> 6703</span>  <span class="comment">//</span></div> +<div class="line"><a name="l06704"></a><span class="lineno"> 6704</span>  <span class="comment">// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format</span></div> +<div class="line"><a name="l06705"></a><span class="lineno"> 6705</span>  <span class="comment">// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/</span></div> +<div class="line"><a name="l06706"></a><span class="lineno"> 6706</span> </div> +<div class="line"><a name="l06707"></a><span class="lineno"> 6707</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> +<div class="line"><a name="l06708"></a><span class="lineno"> 6708</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_is4(stbi__context *s, <span class="keyword">const</span> <span class="keywordtype">char</span> *str)</div> +<div class="line"><a name="l06709"></a><span class="lineno"> 6709</span> {</div> +<div class="line"><a name="l06710"></a><span class="lineno"> 6710</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l06711"></a><span class="lineno"> 6711</span>  <span class="keywordflow">for</span> (i = 0; i < 4; ++i)</div> +<div class="line"><a name="l06712"></a><span class="lineno"> 6712</span>  <span class="keywordflow">if</span> (stbi__get8(s) != (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)str[i])</div> +<div class="line"><a name="l06713"></a><span class="lineno"> 6713</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06714"></a><span class="lineno"> 6714</span> </div> +<div class="line"><a name="l06715"></a><span class="lineno"> 6715</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l06716"></a><span class="lineno"> 6716</span> }</div> <div class="line"><a name="l06717"></a><span class="lineno"> 6717</span> </div> -<div class="line"><a name="l06718"></a><span class="lineno"> 6718</span>  stbi__skip(s, 88);</div> -<div class="line"><a name="l06719"></a><span class="lineno"> 6719</span> </div> -<div class="line"><a name="l06720"></a><span class="lineno"> 6720</span>  *x = stbi__get16be(s);</div> -<div class="line"><a name="l06721"></a><span class="lineno"> 6721</span>  *y = stbi__get16be(s);</div> -<div class="line"><a name="l06722"></a><span class="lineno"> 6722</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) {</div> -<div class="line"><a name="l06723"></a><span class="lineno"> 6723</span>  stbi__rewind( s);</div> -<div class="line"><a name="l06724"></a><span class="lineno"> 6724</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06725"></a><span class="lineno"> 6725</span>  }</div> -<div class="line"><a name="l06726"></a><span class="lineno"> 6726</span>  <span class="keywordflow">if</span> ( (*x) != 0 && (1 << 28) / (*x) < (*y)) {</div> -<div class="line"><a name="l06727"></a><span class="lineno"> 6727</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06728"></a><span class="lineno"> 6728</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06729"></a><span class="lineno"> 6729</span>  }</div> +<div class="line"><a name="l06718"></a><span class="lineno"> 6718</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_test_core(stbi__context *s)</div> +<div class="line"><a name="l06719"></a><span class="lineno"> 6719</span> {</div> +<div class="line"><a name="l06720"></a><span class="lineno"> 6720</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l06721"></a><span class="lineno"> 6721</span> </div> +<div class="line"><a name="l06722"></a><span class="lineno"> 6722</span>  <span class="keywordflow">if</span> (!stbi__pic_is4(s, <span class="stringliteral">"\x53\x80\xF6\x34"</span>))</div> +<div class="line"><a name="l06723"></a><span class="lineno"> 6723</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06724"></a><span class="lineno"> 6724</span> </div> +<div class="line"><a name="l06725"></a><span class="lineno"> 6725</span>  <span class="keywordflow">for</span> (i = 0; i < 84; ++i)</div> +<div class="line"><a name="l06726"></a><span class="lineno"> 6726</span>  stbi__get8(s);</div> +<div class="line"><a name="l06727"></a><span class="lineno"> 6727</span> </div> +<div class="line"><a name="l06728"></a><span class="lineno"> 6728</span>  <span class="keywordflow">if</span> (!stbi__pic_is4(s, <span class="stringliteral">"PICT"</span>))</div> +<div class="line"><a name="l06729"></a><span class="lineno"> 6729</span>  <span class="keywordflow">return</span> 0;</div> <div class="line"><a name="l06730"></a><span class="lineno"> 6730</span> </div> -<div class="line"><a name="l06731"></a><span class="lineno"> 6731</span>  stbi__skip(s, 8);</div> -<div class="line"><a name="l06732"></a><span class="lineno"> 6732</span> </div> -<div class="line"><a name="l06733"></a><span class="lineno"> 6733</span>  <span class="keywordflow">do</span> {</div> -<div class="line"><a name="l06734"></a><span class="lineno"> 6734</span>  stbi__pic_packet *packet;</div> -<div class="line"><a name="l06735"></a><span class="lineno"> 6735</span> </div> -<div class="line"><a name="l06736"></a><span class="lineno"> 6736</span>  <span class="keywordflow">if</span> (num_packets==<span class="keyword">sizeof</span>(packets)/<span class="keyword">sizeof</span>(packets[0]))</div> -<div class="line"><a name="l06737"></a><span class="lineno"> 6737</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06738"></a><span class="lineno"> 6738</span> </div> -<div class="line"><a name="l06739"></a><span class="lineno"> 6739</span>  packet = &packets[num_packets++];</div> -<div class="line"><a name="l06740"></a><span class="lineno"> 6740</span>  chained = stbi__get8(s);</div> -<div class="line"><a name="l06741"></a><span class="lineno"> 6741</span>  packet->size = stbi__get8(s);</div> -<div class="line"><a name="l06742"></a><span class="lineno"> 6742</span>  packet->type = stbi__get8(s);</div> -<div class="line"><a name="l06743"></a><span class="lineno"> 6743</span>  packet->channel = stbi__get8(s);</div> -<div class="line"><a name="l06744"></a><span class="lineno"> 6744</span>  act_comp |= packet->channel;</div> -<div class="line"><a name="l06745"></a><span class="lineno"> 6745</span> </div> -<div class="line"><a name="l06746"></a><span class="lineno"> 6746</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) {</div> -<div class="line"><a name="l06747"></a><span class="lineno"> 6747</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06748"></a><span class="lineno"> 6748</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06749"></a><span class="lineno"> 6749</span>  }</div> -<div class="line"><a name="l06750"></a><span class="lineno"> 6750</span>  <span class="keywordflow">if</span> (packet->size != 8) {</div> -<div class="line"><a name="l06751"></a><span class="lineno"> 6751</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06752"></a><span class="lineno"> 6752</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06753"></a><span class="lineno"> 6753</span>  }</div> -<div class="line"><a name="l06754"></a><span class="lineno"> 6754</span>  } <span class="keywordflow">while</span> (chained);</div> -<div class="line"><a name="l06755"></a><span class="lineno"> 6755</span> </div> -<div class="line"><a name="l06756"></a><span class="lineno"> 6756</span>  *comp = (act_comp & 0x10 ? 4 : 3);</div> -<div class="line"><a name="l06757"></a><span class="lineno"> 6757</span> </div> -<div class="line"><a name="l06758"></a><span class="lineno"> 6758</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06759"></a><span class="lineno"> 6759</span> }</div> -<div class="line"><a name="l06760"></a><span class="lineno"> 6760</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l06761"></a><span class="lineno"> 6761</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06762"></a><span class="lineno"> 6762</span> <span class="comment">// *************************************************************************************************</span></div> -<div class="line"><a name="l06763"></a><span class="lineno"> 6763</span> <span class="comment">// Portable Gray Map and Portable Pixel Map loader</span></div> -<div class="line"><a name="l06764"></a><span class="lineno"> 6764</span> <span class="comment">// by Ken Miller</span></div> -<div class="line"><a name="l06765"></a><span class="lineno"> 6765</span> <span class="comment">//</span></div> -<div class="line"><a name="l06766"></a><span class="lineno"> 6766</span> <span class="comment">// PGM: http://netpbm.sourceforge.net/doc/pgm.html</span></div> -<div class="line"><a name="l06767"></a><span class="lineno"> 6767</span> <span class="comment">// PPM: http://netpbm.sourceforge.net/doc/ppm.html</span></div> -<div class="line"><a name="l06768"></a><span class="lineno"> 6768</span> <span class="comment">//</span></div> -<div class="line"><a name="l06769"></a><span class="lineno"> 6769</span> <span class="comment">// Known limitations:</span></div> -<div class="line"><a name="l06770"></a><span class="lineno"> 6770</span> <span class="comment">// Does not support comments in the header section</span></div> -<div class="line"><a name="l06771"></a><span class="lineno"> 6771</span> <span class="comment">// Does not support ASCII image data (formats P2 and P3)</span></div> -<div class="line"><a name="l06772"></a><span class="lineno"> 6772</span> <span class="comment">// Does not support 16-bit-per-channel</span></div> -<div class="line"><a name="l06773"></a><span class="lineno"> 6773</span> </div> -<div class="line"><a name="l06774"></a><span class="lineno"> 6774</span> <span class="preprocessor">#ifndef STBI_NO_PNM</span></div> -<div class="line"><a name="l06775"></a><span class="lineno"> 6775</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06776"></a><span class="lineno"> 6776</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_test(stbi__context *s)</div> -<div class="line"><a name="l06777"></a><span class="lineno"> 6777</span> {</div> -<div class="line"><a name="l06778"></a><span class="lineno"> 6778</span>  <span class="keywordtype">char</span> p, t;</div> -<div class="line"><a name="l06779"></a><span class="lineno"> 6779</span>  p = (char) stbi__get8(s);</div> -<div class="line"><a name="l06780"></a><span class="lineno"> 6780</span>  t = (char) stbi__get8(s);</div> -<div class="line"><a name="l06781"></a><span class="lineno"> 6781</span>  <span class="keywordflow">if</span> (p != <span class="charliteral">'P'</span> || (t != <span class="charliteral">'5'</span> && t != <span class="charliteral">'6'</span>)) {</div> -<div class="line"><a name="l06782"></a><span class="lineno"> 6782</span>  stbi__rewind( s );</div> -<div class="line"><a name="l06783"></a><span class="lineno"> 6783</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06784"></a><span class="lineno"> 6784</span>  }</div> -<div class="line"><a name="l06785"></a><span class="lineno"> 6785</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06786"></a><span class="lineno"> 6786</span> }</div> -<div class="line"><a name="l06787"></a><span class="lineno"> 6787</span> </div> -<div class="line"><a name="l06788"></a><span class="lineno"> 6788</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pnm_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp, <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> -<div class="line"><a name="l06789"></a><span class="lineno"> 6789</span> {</div> -<div class="line"><a name="l06790"></a><span class="lineno"> 6790</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out;</div> -<div class="line"><a name="l06791"></a><span class="lineno"> 6791</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l06731"></a><span class="lineno"> 6731</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l06732"></a><span class="lineno"> 6732</span> }</div> +<div class="line"><a name="l06733"></a><span class="lineno"> 6733</span> </div> +<div class="line"><a name="l06734"></a><span class="lineno"> 6734</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l06735"></a><span class="lineno"> 6735</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> size, type, channel;</div> +<div class="line"><a name="l06736"></a><span class="lineno"> 6736</span> } stbi__pic_packet;</div> +<div class="line"><a name="l06737"></a><span class="lineno"> 6737</span> </div> +<div class="line"><a name="l06738"></a><span class="lineno"> 6738</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__readval(stbi__context *s, <span class="keywordtype">int</span> channel, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *dest)</div> +<div class="line"><a name="l06739"></a><span class="lineno"> 6739</span> {</div> +<div class="line"><a name="l06740"></a><span class="lineno"> 6740</span>  <span class="keywordtype">int</span> mask = 0x80, i;</div> +<div class="line"><a name="l06741"></a><span class="lineno"> 6741</span> </div> +<div class="line"><a name="l06742"></a><span class="lineno"> 6742</span>  <span class="keywordflow">for</span> (i = 0; i < 4; ++i, mask >>= 1) {</div> +<div class="line"><a name="l06743"></a><span class="lineno"> 6743</span>  <span class="keywordflow">if</span> (channel & mask) {</div> +<div class="line"><a name="l06744"></a><span class="lineno"> 6744</span>  <span class="keywordflow">if</span> (stbi__at_eof(s))</div> +<div class="line"><a name="l06745"></a><span class="lineno"> 6745</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>, <span class="stringliteral">"PIC file too short"</span>);</div> +<div class="line"><a name="l06746"></a><span class="lineno"> 6746</span>  dest[i] = stbi__get8(s);</div> +<div class="line"><a name="l06747"></a><span class="lineno"> 6747</span>  }</div> +<div class="line"><a name="l06748"></a><span class="lineno"> 6748</span>  }</div> +<div class="line"><a name="l06749"></a><span class="lineno"> 6749</span> </div> +<div class="line"><a name="l06750"></a><span class="lineno"> 6750</span>  <span class="keywordflow">return</span> dest;</div> +<div class="line"><a name="l06751"></a><span class="lineno"> 6751</span> }</div> +<div class="line"><a name="l06752"></a><span class="lineno"> 6752</span> </div> +<div class="line"><a name="l06753"></a><span class="lineno"> 6753</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__copyval(<span class="keywordtype">int</span> channel, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *dest, <span class="keyword">const</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *src)</div> +<div class="line"><a name="l06754"></a><span class="lineno"> 6754</span> {</div> +<div class="line"><a name="l06755"></a><span class="lineno"> 6755</span>  <span class="keywordtype">int</span> mask = 0x80, i;</div> +<div class="line"><a name="l06756"></a><span class="lineno"> 6756</span> </div> +<div class="line"><a name="l06757"></a><span class="lineno"> 6757</span>  <span class="keywordflow">for</span> (i = 0; i < 4; ++i, mask >>= 1)</div> +<div class="line"><a name="l06758"></a><span class="lineno"> 6758</span>  <span class="keywordflow">if</span> (channel & mask)</div> +<div class="line"><a name="l06759"></a><span class="lineno"> 6759</span>  dest[i] = src[i];</div> +<div class="line"><a name="l06760"></a><span class="lineno"> 6760</span> }</div> +<div class="line"><a name="l06761"></a><span class="lineno"> 6761</span> </div> +<div class="line"><a name="l06762"></a><span class="lineno"> 6762</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__pic_load_core(stbi__context *s, <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height,</div> +<div class="line"><a name="l06763"></a><span class="lineno"> 6763</span>  <span class="keywordtype">int</span> *comp, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *result)</div> +<div class="line"><a name="l06764"></a><span class="lineno"> 6764</span> {</div> +<div class="line"><a name="l06765"></a><span class="lineno"> 6765</span>  <span class="keywordtype">int</span> act_comp = 0, num_packets = 0, y, chained;</div> +<div class="line"><a name="l06766"></a><span class="lineno"> 6766</span>  stbi__pic_packet packets[10];</div> +<div class="line"><a name="l06767"></a><span class="lineno"> 6767</span> </div> +<div class="line"><a name="l06768"></a><span class="lineno"> 6768</span>  <span class="comment">// this will (should...) cater for even some bizarre stuff like having data</span></div> +<div class="line"><a name="l06769"></a><span class="lineno"> 6769</span>  <span class="comment">// for the same channel in multiple packets.</span></div> +<div class="line"><a name="l06770"></a><span class="lineno"> 6770</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l06771"></a><span class="lineno"> 6771</span>  stbi__pic_packet *packet;</div> +<div class="line"><a name="l06772"></a><span class="lineno"> 6772</span> </div> +<div class="line"><a name="l06773"></a><span class="lineno"> 6773</span>  <span class="keywordflow">if</span> (num_packets == <span class="keyword">sizeof</span>(packets) / <span class="keyword">sizeof</span>(packets[0]))</div> +<div class="line"><a name="l06774"></a><span class="lineno"> 6774</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>, <span class="stringliteral">"too many packets"</span>);</div> +<div class="line"><a name="l06775"></a><span class="lineno"> 6775</span> </div> +<div class="line"><a name="l06776"></a><span class="lineno"> 6776</span>  packet = &packets[num_packets++];</div> +<div class="line"><a name="l06777"></a><span class="lineno"> 6777</span> </div> +<div class="line"><a name="l06778"></a><span class="lineno"> 6778</span>  chained = stbi__get8(s);</div> +<div class="line"><a name="l06779"></a><span class="lineno"> 6779</span>  packet->size = stbi__get8(s);</div> +<div class="line"><a name="l06780"></a><span class="lineno"> 6780</span>  packet->type = stbi__get8(s);</div> +<div class="line"><a name="l06781"></a><span class="lineno"> 6781</span>  packet->channel = stbi__get8(s);</div> +<div class="line"><a name="l06782"></a><span class="lineno"> 6782</span> </div> +<div class="line"><a name="l06783"></a><span class="lineno"> 6783</span>  act_comp |= packet->channel;</div> +<div class="line"><a name="l06784"></a><span class="lineno"> 6784</span> </div> +<div class="line"><a name="l06785"></a><span class="lineno"> 6785</span>  <span class="keywordflow">if</span> (stbi__at_eof(s))</div> +<div class="line"><a name="l06786"></a><span class="lineno"> 6786</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>, <span class="stringliteral">"file too short (reading packets)"</span>);</div> +<div class="line"><a name="l06787"></a><span class="lineno"> 6787</span>  <span class="keywordflow">if</span> (packet->size != 8)</div> +<div class="line"><a name="l06788"></a><span class="lineno"> 6788</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>, <span class="stringliteral">"packet isn't 8bpp"</span>);</div> +<div class="line"><a name="l06789"></a><span class="lineno"> 6789</span>  } <span class="keywordflow">while</span> (chained);</div> +<div class="line"><a name="l06790"></a><span class="lineno"> 6790</span> </div> +<div class="line"><a name="l06791"></a><span class="lineno"> 6791</span>  *comp = (act_comp & 0x10 ? 4 : 3); <span class="comment">// has alpha channel?</span></div> <div class="line"><a name="l06792"></a><span class="lineno"> 6792</span> </div> -<div class="line"><a name="l06793"></a><span class="lineno"> 6793</span>  <span class="keywordflow">if</span> (!stbi__pnm_info(s, (<span class="keywordtype">int</span> *)&s->img_x, (<span class="keywordtype">int</span> *)&s->img_y, (<span class="keywordtype">int</span> *)&s->img_n))</div> -<div class="line"><a name="l06794"></a><span class="lineno"> 6794</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06793"></a><span class="lineno"> 6793</span>  <span class="keywordflow">for</span> (y = 0; y < height; ++y) {</div> +<div class="line"><a name="l06794"></a><span class="lineno"> 6794</span>  <span class="keywordtype">int</span> packet_idx;</div> <div class="line"><a name="l06795"></a><span class="lineno"> 6795</span> </div> -<div class="line"><a name="l06796"></a><span class="lineno"> 6796</span>  *x = s->img_x;</div> -<div class="line"><a name="l06797"></a><span class="lineno"> 6797</span>  *y = s->img_y;</div> -<div class="line"><a name="l06798"></a><span class="lineno"> 6798</span>  <span class="keywordflow">if</span> (comp) *comp = s->img_n;</div> +<div class="line"><a name="l06796"></a><span class="lineno"> 6796</span>  <span class="keywordflow">for</span> (packet_idx = 0; packet_idx < num_packets; ++packet_idx) {</div> +<div class="line"><a name="l06797"></a><span class="lineno"> 6797</span>  stbi__pic_packet *packet = &packets[packet_idx];</div> +<div class="line"><a name="l06798"></a><span class="lineno"> 6798</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *dest = result + y * width * 4;</div> <div class="line"><a name="l06799"></a><span class="lineno"> 6799</span> </div> -<div class="line"><a name="l06800"></a><span class="lineno"> 6800</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0))</div> -<div class="line"><a name="l06801"></a><span class="lineno"> 6801</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"PNM too large"</span>);</div> -<div class="line"><a name="l06802"></a><span class="lineno"> 6802</span> </div> -<div class="line"><a name="l06803"></a><span class="lineno"> 6803</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0);</div> -<div class="line"><a name="l06804"></a><span class="lineno"> 6804</span>  <span class="keywordflow">if</span> (!out) <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> -<div class="line"><a name="l06805"></a><span class="lineno"> 6805</span>  stbi__getn(s, out, s->img_n * s->img_x * s->img_y);</div> -<div class="line"><a name="l06806"></a><span class="lineno"> 6806</span> </div> -<div class="line"><a name="l06807"></a><span class="lineno"> 6807</span>  <span class="keywordflow">if</span> (req_comp && req_comp != s->img_n) {</div> -<div class="line"><a name="l06808"></a><span class="lineno"> 6808</span>  out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y);</div> -<div class="line"><a name="l06809"></a><span class="lineno"> 6809</span>  <span class="keywordflow">if</span> (out == NULL) <span class="keywordflow">return</span> out; <span class="comment">// stbi__convert_format frees input on failure</span></div> -<div class="line"><a name="l06810"></a><span class="lineno"> 6810</span>  }</div> -<div class="line"><a name="l06811"></a><span class="lineno"> 6811</span>  <span class="keywordflow">return</span> out;</div> -<div class="line"><a name="l06812"></a><span class="lineno"> 6812</span> }</div> +<div class="line"><a name="l06800"></a><span class="lineno"> 6800</span>  <span class="keywordflow">switch</span> (packet->type) {</div> +<div class="line"><a name="l06801"></a><span class="lineno"> 6801</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l06802"></a><span class="lineno"> 6802</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad format"</span>,</div> +<div class="line"><a name="l06803"></a><span class="lineno"> 6803</span>  <span class="stringliteral">"packet has bad compression type"</span>);</div> +<div class="line"><a name="l06804"></a><span class="lineno"> 6804</span> </div> +<div class="line"><a name="l06805"></a><span class="lineno"> 6805</span>  <span class="keywordflow">case</span> 0: { <span class="comment">// uncompressed</span></div> +<div class="line"><a name="l06806"></a><span class="lineno"> 6806</span>  <span class="keywordtype">int</span> x;</div> +<div class="line"><a name="l06807"></a><span class="lineno"> 6807</span> </div> +<div class="line"><a name="l06808"></a><span class="lineno"> 6808</span>  <span class="keywordflow">for</span> (x = 0; x < width; ++x, dest += 4)</div> +<div class="line"><a name="l06809"></a><span class="lineno"> 6809</span>  <span class="keywordflow">if</span> (!stbi__readval(s, packet->channel, dest))</div> +<div class="line"><a name="l06810"></a><span class="lineno"> 6810</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06811"></a><span class="lineno"> 6811</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l06812"></a><span class="lineno"> 6812</span>  }</div> <div class="line"><a name="l06813"></a><span class="lineno"> 6813</span> </div> -<div class="line"><a name="l06814"></a><span class="lineno"> 6814</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_isspace(<span class="keywordtype">char</span> c)</div> -<div class="line"><a name="l06815"></a><span class="lineno"> 6815</span> {</div> -<div class="line"><a name="l06816"></a><span class="lineno"> 6816</span>  <span class="keywordflow">return</span> c == <span class="charliteral">' '</span> || c == <span class="charliteral">'\t'</span> || c == <span class="charliteral">'\n'</span> || c == <span class="charliteral">'\v'</span> || c == <span class="charliteral">'\f'</span> || c == <span class="charliteral">'\r'</span>;</div> -<div class="line"><a name="l06817"></a><span class="lineno"> 6817</span> }</div> -<div class="line"><a name="l06818"></a><span class="lineno"> 6818</span> </div> -<div class="line"><a name="l06819"></a><span class="lineno"> 6819</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__pnm_skip_whitespace(stbi__context *s, <span class="keywordtype">char</span> *c)</div> -<div class="line"><a name="l06820"></a><span class="lineno"> 6820</span> {</div> -<div class="line"><a name="l06821"></a><span class="lineno"> 6821</span>  <span class="keywordflow">for</span> (;;) {</div> -<div class="line"><a name="l06822"></a><span class="lineno"> 6822</span>  <span class="keywordflow">while</span> (!stbi__at_eof(s) && stbi__pnm_isspace(*c))</div> -<div class="line"><a name="l06823"></a><span class="lineno"> 6823</span>  *c = (char) stbi__get8(s);</div> -<div class="line"><a name="l06824"></a><span class="lineno"> 6824</span> </div> -<div class="line"><a name="l06825"></a><span class="lineno"> 6825</span>  <span class="keywordflow">if</span> (stbi__at_eof(s) || *c != <span class="charliteral">'#'</span>)</div> -<div class="line"><a name="l06826"></a><span class="lineno"> 6826</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l06827"></a><span class="lineno"> 6827</span> </div> -<div class="line"><a name="l06828"></a><span class="lineno"> 6828</span>  <span class="keywordflow">while</span> (!stbi__at_eof(s) && *c != <span class="charliteral">'\n'</span> && *c != <span class="charliteral">'\r'</span> )</div> -<div class="line"><a name="l06829"></a><span class="lineno"> 6829</span>  *c = (<span class="keywordtype">char</span>) stbi__get8(s);</div> -<div class="line"><a name="l06830"></a><span class="lineno"> 6830</span>  }</div> -<div class="line"><a name="l06831"></a><span class="lineno"> 6831</span> }</div> -<div class="line"><a name="l06832"></a><span class="lineno"> 6832</span> </div> -<div class="line"><a name="l06833"></a><span class="lineno"> 6833</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_isdigit(<span class="keywordtype">char</span> c)</div> -<div class="line"><a name="l06834"></a><span class="lineno"> 6834</span> {</div> -<div class="line"><a name="l06835"></a><span class="lineno"> 6835</span>  <span class="keywordflow">return</span> c >= <span class="charliteral">'0'</span> && c <= <span class="charliteral">'9'</span>;</div> -<div class="line"><a name="l06836"></a><span class="lineno"> 6836</span> }</div> +<div class="line"><a name="l06814"></a><span class="lineno"> 6814</span>  <span class="keywordflow">case</span> 1: <span class="comment">// Pure RLE</span></div> +<div class="line"><a name="l06815"></a><span class="lineno"> 6815</span>  {</div> +<div class="line"><a name="l06816"></a><span class="lineno"> 6816</span>  <span class="keywordtype">int</span> left = width, i;</div> +<div class="line"><a name="l06817"></a><span class="lineno"> 6817</span> </div> +<div class="line"><a name="l06818"></a><span class="lineno"> 6818</span>  <span class="keywordflow">while</span> (left > 0) {</div> +<div class="line"><a name="l06819"></a><span class="lineno"> 6819</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> count, value[4];</div> +<div class="line"><a name="l06820"></a><span class="lineno"> 6820</span> </div> +<div class="line"><a name="l06821"></a><span class="lineno"> 6821</span>  count = stbi__get8(s);</div> +<div class="line"><a name="l06822"></a><span class="lineno"> 6822</span>  <span class="keywordflow">if</span> (stbi__at_eof(s))</div> +<div class="line"><a name="l06823"></a><span class="lineno"> 6823</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>,</div> +<div class="line"><a name="l06824"></a><span class="lineno"> 6824</span>  <span class="stringliteral">"file too short (pure read count)"</span>);</div> +<div class="line"><a name="l06825"></a><span class="lineno"> 6825</span> </div> +<div class="line"><a name="l06826"></a><span class="lineno"> 6826</span>  <span class="keywordflow">if</span> (count > left)</div> +<div class="line"><a name="l06827"></a><span class="lineno"> 6827</span>  count = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)left;</div> +<div class="line"><a name="l06828"></a><span class="lineno"> 6828</span> </div> +<div class="line"><a name="l06829"></a><span class="lineno"> 6829</span>  <span class="keywordflow">if</span> (!stbi__readval(s, packet->channel, value))</div> +<div class="line"><a name="l06830"></a><span class="lineno"> 6830</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06831"></a><span class="lineno"> 6831</span> </div> +<div class="line"><a name="l06832"></a><span class="lineno"> 6832</span>  <span class="keywordflow">for</span> (i = 0; i < count; ++i, dest += 4)</div> +<div class="line"><a name="l06833"></a><span class="lineno"> 6833</span>  stbi__copyval(packet->channel, dest, value);</div> +<div class="line"><a name="l06834"></a><span class="lineno"> 6834</span>  left -= count;</div> +<div class="line"><a name="l06835"></a><span class="lineno"> 6835</span>  }</div> +<div class="line"><a name="l06836"></a><span class="lineno"> 6836</span>  } <span class="keywordflow">break</span>;</div> <div class="line"><a name="l06837"></a><span class="lineno"> 6837</span> </div> -<div class="line"><a name="l06838"></a><span class="lineno"> 6838</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_getinteger(stbi__context *s, <span class="keywordtype">char</span> *c)</div> -<div class="line"><a name="l06839"></a><span class="lineno"> 6839</span> {</div> -<div class="line"><a name="l06840"></a><span class="lineno"> 6840</span>  <span class="keywordtype">int</span> value = 0;</div> -<div class="line"><a name="l06841"></a><span class="lineno"> 6841</span> </div> -<div class="line"><a name="l06842"></a><span class="lineno"> 6842</span>  <span class="keywordflow">while</span> (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) {</div> -<div class="line"><a name="l06843"></a><span class="lineno"> 6843</span>  value = value*10 + (*c - <span class="charliteral">'0'</span>);</div> -<div class="line"><a name="l06844"></a><span class="lineno"> 6844</span>  *c = (char) stbi__get8(s);</div> -<div class="line"><a name="l06845"></a><span class="lineno"> 6845</span>  }</div> -<div class="line"><a name="l06846"></a><span class="lineno"> 6846</span> </div> -<div class="line"><a name="l06847"></a><span class="lineno"> 6847</span>  <span class="keywordflow">return</span> value;</div> -<div class="line"><a name="l06848"></a><span class="lineno"> 6848</span> }</div> -<div class="line"><a name="l06849"></a><span class="lineno"> 6849</span> </div> -<div class="line"><a name="l06850"></a><span class="lineno"> 6850</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06851"></a><span class="lineno"> 6851</span> {</div> -<div class="line"><a name="l06852"></a><span class="lineno"> 6852</span>  <span class="keywordtype">int</span> maxv, dummy;</div> -<div class="line"><a name="l06853"></a><span class="lineno"> 6853</span>  <span class="keywordtype">char</span> c, p, t;</div> -<div class="line"><a name="l06854"></a><span class="lineno"> 6854</span> </div> -<div class="line"><a name="l06855"></a><span class="lineno"> 6855</span>  <span class="keywordflow">if</span> (!x) x = &dummy;</div> -<div class="line"><a name="l06856"></a><span class="lineno"> 6856</span>  <span class="keywordflow">if</span> (!y) y = &dummy;</div> -<div class="line"><a name="l06857"></a><span class="lineno"> 6857</span>  <span class="keywordflow">if</span> (!comp) comp = &dummy;</div> +<div class="line"><a name="l06838"></a><span class="lineno"> 6838</span>  <span class="keywordflow">case</span> 2: { <span class="comment">// Mixed RLE</span></div> +<div class="line"><a name="l06839"></a><span class="lineno"> 6839</span>  <span class="keywordtype">int</span> left = width;</div> +<div class="line"><a name="l06840"></a><span class="lineno"> 6840</span>  <span class="keywordflow">while</span> (left > 0) {</div> +<div class="line"><a name="l06841"></a><span class="lineno"> 6841</span>  <span class="keywordtype">int</span> count = stbi__get8(s), i;</div> +<div class="line"><a name="l06842"></a><span class="lineno"> 6842</span>  <span class="keywordflow">if</span> (stbi__at_eof(s))</div> +<div class="line"><a name="l06843"></a><span class="lineno"> 6843</span>  <span class="keywordflow">return</span> stbi__errpuc(</div> +<div class="line"><a name="l06844"></a><span class="lineno"> 6844</span>  <span class="stringliteral">"bad file"</span>, <span class="stringliteral">"file too short (mixed read count)"</span>);</div> +<div class="line"><a name="l06845"></a><span class="lineno"> 6845</span> </div> +<div class="line"><a name="l06846"></a><span class="lineno"> 6846</span>  <span class="keywordflow">if</span> (count >= 128) { <span class="comment">// Repeated</span></div> +<div class="line"><a name="l06847"></a><span class="lineno"> 6847</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> value[4];</div> +<div class="line"><a name="l06848"></a><span class="lineno"> 6848</span> </div> +<div class="line"><a name="l06849"></a><span class="lineno"> 6849</span>  <span class="keywordflow">if</span> (count == 128)</div> +<div class="line"><a name="l06850"></a><span class="lineno"> 6850</span>  count = stbi__get16be(s);</div> +<div class="line"><a name="l06851"></a><span class="lineno"> 6851</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l06852"></a><span class="lineno"> 6852</span>  count -= 127;</div> +<div class="line"><a name="l06853"></a><span class="lineno"> 6853</span>  <span class="keywordflow">if</span> (count > left)</div> +<div class="line"><a name="l06854"></a><span class="lineno"> 6854</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>, <span class="stringliteral">"scanline overrun"</span>);</div> +<div class="line"><a name="l06855"></a><span class="lineno"> 6855</span> </div> +<div class="line"><a name="l06856"></a><span class="lineno"> 6856</span>  <span class="keywordflow">if</span> (!stbi__readval(s, packet->channel, value))</div> +<div class="line"><a name="l06857"></a><span class="lineno"> 6857</span>  <span class="keywordflow">return</span> 0;</div> <div class="line"><a name="l06858"></a><span class="lineno"> 6858</span> </div> -<div class="line"><a name="l06859"></a><span class="lineno"> 6859</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06860"></a><span class="lineno"> 6860</span> </div> -<div class="line"><a name="l06861"></a><span class="lineno"> 6861</span>  <span class="comment">// Get identifier</span></div> -<div class="line"><a name="l06862"></a><span class="lineno"> 6862</span>  p = (char) stbi__get8(s);</div> -<div class="line"><a name="l06863"></a><span class="lineno"> 6863</span>  t = (char) stbi__get8(s);</div> -<div class="line"><a name="l06864"></a><span class="lineno"> 6864</span>  <span class="keywordflow">if</span> (p != <span class="charliteral">'P'</span> || (t != <span class="charliteral">'5'</span> && t != <span class="charliteral">'6'</span>)) {</div> -<div class="line"><a name="l06865"></a><span class="lineno"> 6865</span>  stbi__rewind(s);</div> -<div class="line"><a name="l06866"></a><span class="lineno"> 6866</span>  <span class="keywordflow">return</span> 0;</div> -<div class="line"><a name="l06867"></a><span class="lineno"> 6867</span>  }</div> -<div class="line"><a name="l06868"></a><span class="lineno"> 6868</span> </div> -<div class="line"><a name="l06869"></a><span class="lineno"> 6869</span>  *comp = (t == <span class="charliteral">'6'</span>) ? 3 : 1; <span class="comment">// '5' is 1-component .pgm; '6' is 3-component .ppm</span></div> -<div class="line"><a name="l06870"></a><span class="lineno"> 6870</span> </div> -<div class="line"><a name="l06871"></a><span class="lineno"> 6871</span>  c = (char) stbi__get8(s);</div> -<div class="line"><a name="l06872"></a><span class="lineno"> 6872</span>  stbi__pnm_skip_whitespace(s, &c);</div> -<div class="line"><a name="l06873"></a><span class="lineno"> 6873</span> </div> -<div class="line"><a name="l06874"></a><span class="lineno"> 6874</span>  *x = stbi__pnm_getinteger(s, &c); <span class="comment">// read width</span></div> -<div class="line"><a name="l06875"></a><span class="lineno"> 6875</span>  stbi__pnm_skip_whitespace(s, &c);</div> -<div class="line"><a name="l06876"></a><span class="lineno"> 6876</span> </div> -<div class="line"><a name="l06877"></a><span class="lineno"> 6877</span>  *y = stbi__pnm_getinteger(s, &c); <span class="comment">// read height</span></div> -<div class="line"><a name="l06878"></a><span class="lineno"> 6878</span>  stbi__pnm_skip_whitespace(s, &c);</div> -<div class="line"><a name="l06879"></a><span class="lineno"> 6879</span> </div> -<div class="line"><a name="l06880"></a><span class="lineno"> 6880</span>  maxv = stbi__pnm_getinteger(s, &c); <span class="comment">// read max value</span></div> -<div class="line"><a name="l06881"></a><span class="lineno"> 6881</span> </div> -<div class="line"><a name="l06882"></a><span class="lineno"> 6882</span>  <span class="keywordflow">if</span> (maxv > 255)</div> -<div class="line"><a name="l06883"></a><span class="lineno"> 6883</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"max value > 255"</span>, <span class="stringliteral">"PPM image not 8-bit"</span>);</div> -<div class="line"><a name="l06884"></a><span class="lineno"> 6884</span>  <span class="keywordflow">else</span></div> -<div class="line"><a name="l06885"></a><span class="lineno"> 6885</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06886"></a><span class="lineno"> 6886</span> }</div> -<div class="line"><a name="l06887"></a><span class="lineno"> 6887</span> <span class="preprocessor">#endif</span></div> -<div class="line"><a name="l06888"></a><span class="lineno"> 6888</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06889"></a><span class="lineno"> 6889</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__info_main(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06890"></a><span class="lineno"> 6890</span> {</div> -<div class="line"><a name="l06891"></a><span class="lineno"> 6891</span> <span class="preprocessor"> #ifndef STBI_NO_JPEG</span></div> -<div class="line"><a name="l06892"></a><span class="lineno"> 6892</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__jpeg_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06893"></a><span class="lineno"> 6893</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06894"></a><span class="lineno"> 6894</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06895"></a><span class="lineno"> 6895</span> <span class="preprocessor"> #ifndef STBI_NO_PNG</span></div> -<div class="line"><a name="l06896"></a><span class="lineno"> 6896</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__png_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06897"></a><span class="lineno"> 6897</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06898"></a><span class="lineno"> 6898</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06899"></a><span class="lineno"> 6899</span> <span class="preprocessor"> #ifndef STBI_NO_GIF</span></div> -<div class="line"><a name="l06900"></a><span class="lineno"> 6900</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__gif_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06901"></a><span class="lineno"> 6901</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06902"></a><span class="lineno"> 6902</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06903"></a><span class="lineno"> 6903</span> <span class="preprocessor"> #ifndef STBI_NO_BMP</span></div> -<div class="line"><a name="l06904"></a><span class="lineno"> 6904</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__bmp_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06905"></a><span class="lineno"> 6905</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06906"></a><span class="lineno"> 6906</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06907"></a><span class="lineno"> 6907</span> <span class="preprocessor"> #ifndef STBI_NO_PSD</span></div> -<div class="line"><a name="l06908"></a><span class="lineno"> 6908</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__psd_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06909"></a><span class="lineno"> 6909</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06910"></a><span class="lineno"> 6910</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06911"></a><span class="lineno"> 6911</span> <span class="preprocessor"> #ifndef STBI_NO_PIC</span></div> -<div class="line"><a name="l06912"></a><span class="lineno"> 6912</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pic_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06913"></a><span class="lineno"> 6913</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06914"></a><span class="lineno"> 6914</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06915"></a><span class="lineno"> 6915</span> <span class="preprocessor"> #ifndef STBI_NO_PNM</span></div> -<div class="line"><a name="l06916"></a><span class="lineno"> 6916</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pnm_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06917"></a><span class="lineno"> 6917</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06918"></a><span class="lineno"> 6918</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06919"></a><span class="lineno"> 6919</span> <span class="preprocessor"> #ifndef STBI_NO_HDR</span></div> -<div class="line"><a name="l06920"></a><span class="lineno"> 6920</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__hdr_info(s, x, y, comp)) <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06921"></a><span class="lineno"> 6921</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06922"></a><span class="lineno"> 6922</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06923"></a><span class="lineno"> 6923</span>  <span class="comment">// test tga last because it's a crappy test!</span></div> -<div class="line"><a name="l06924"></a><span class="lineno"> 6924</span> <span class="preprocessor"> #ifndef STBI_NO_TGA</span></div> -<div class="line"><a name="l06925"></a><span class="lineno"> 6925</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__tga_info(s, x, y, comp))</div> -<div class="line"><a name="l06926"></a><span class="lineno"> 6926</span>  <span class="keywordflow">return</span> 1;</div> -<div class="line"><a name="l06927"></a><span class="lineno"> 6927</span> <span class="preprocessor"> #endif</span></div> -<div class="line"><a name="l06928"></a><span class="lineno"> 6928</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"unknown image type"</span>, <span class="stringliteral">"Image not of any known type, or corrupt"</span>);</div> -<div class="line"><a name="l06929"></a><span class="lineno"> 6929</span> }</div> -<div class="line"><a name="l06930"></a><span class="lineno"> 6930</span> </div> -<div class="line"><a name="l06931"></a><span class="lineno"> 6931</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> -<div class="line"><a name="l06932"></a><span class="lineno"> 6932</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aede708cca1304520b2afcf4d5eb61d70">stbi_info</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06933"></a><span class="lineno"> 6933</span> {</div> -<div class="line"><a name="l06934"></a><span class="lineno"> 6934</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> -<div class="line"><a name="l06935"></a><span class="lineno"> 6935</span>  <span class="keywordtype">int</span> result;</div> -<div class="line"><a name="l06936"></a><span class="lineno"> 6936</span>  <span class="keywordflow">if</span> (!f) <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> -<div class="line"><a name="l06937"></a><span class="lineno"> 6937</span>  result = <a class="code" href="stb__image_8h.html#a28abedef4a0a93909332080df6be0021">stbi_info_from_file</a>(f, x, y, comp);</div> -<div class="line"><a name="l06938"></a><span class="lineno"> 6938</span>  fclose(f);</div> -<div class="line"><a name="l06939"></a><span class="lineno"> 6939</span>  <span class="keywordflow">return</span> result;</div> -<div class="line"><a name="l06940"></a><span class="lineno"> 6940</span> }</div> -<div class="line"><a name="l06941"></a><span class="lineno"> 6941</span> </div> -<div class="line"><a name="l06942"></a><span class="lineno"> 6942</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a28abedef4a0a93909332080df6be0021">stbi_info_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06943"></a><span class="lineno"> 6943</span> {</div> -<div class="line"><a name="l06944"></a><span class="lineno"> 6944</span>  <span class="keywordtype">int</span> r;</div> -<div class="line"><a name="l06945"></a><span class="lineno"> 6945</span>  stbi__context s;</div> -<div class="line"><a name="l06946"></a><span class="lineno"> 6946</span>  <span class="keywordtype">long</span> pos = ftell(f);</div> -<div class="line"><a name="l06947"></a><span class="lineno"> 6947</span>  stbi__start_file(&s, f);</div> -<div class="line"><a name="l06948"></a><span class="lineno"> 6948</span>  r = stbi__info_main(&s,x,y,comp);</div> -<div class="line"><a name="l06949"></a><span class="lineno"> 6949</span>  fseek(f,pos,SEEK_SET);</div> -<div class="line"><a name="l06950"></a><span class="lineno"> 6950</span>  <span class="keywordflow">return</span> r;</div> -<div class="line"><a name="l06951"></a><span class="lineno"> 6951</span> }</div> -<div class="line"><a name="l06952"></a><span class="lineno"> 6952</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> -<div class="line"><a name="l06953"></a><span class="lineno"> 6953</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06954"></a><span class="lineno"> 6954</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#acfef077febce3bc3f1f339de478f3315">stbi_info_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06955"></a><span class="lineno"> 6955</span> {</div> -<div class="line"><a name="l06956"></a><span class="lineno"> 6956</span>  stbi__context s;</div> -<div class="line"><a name="l06957"></a><span class="lineno"> 6957</span>  stbi__start_mem(&s,buffer,len);</div> -<div class="line"><a name="l06958"></a><span class="lineno"> 6958</span>  <span class="keywordflow">return</span> stbi__info_main(&s,x,y,comp);</div> -<div class="line"><a name="l06959"></a><span class="lineno"> 6959</span> }</div> -<div class="line"><a name="l06960"></a><span class="lineno"> 6960</span> </div> -<div class="line"><a name="l06961"></a><span class="lineno"> 6961</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a86291c64cb663f41a34647d5e1abf363">stbi_info_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *c, <span class="keywordtype">void</span> *user, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> -<div class="line"><a name="l06962"></a><span class="lineno"> 6962</span> {</div> -<div class="line"><a name="l06963"></a><span class="lineno"> 6963</span>  stbi__context s;</div> -<div class="line"><a name="l06964"></a><span class="lineno"> 6964</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *) c, user);</div> -<div class="line"><a name="l06965"></a><span class="lineno"> 6965</span>  <span class="keywordflow">return</span> stbi__info_main(&s,x,y,comp);</div> -<div class="line"><a name="l06966"></a><span class="lineno"> 6966</span> }</div> -<div class="line"><a name="l06967"></a><span class="lineno"> 6967</span> </div> -<div class="line"><a name="l06968"></a><span class="lineno"> 6968</span> <span class="preprocessor">#endif // STB_IMAGE_IMPLEMENTATION</span></div> -<div class="line"><a name="l06969"></a><span class="lineno"> 6969</span> <span class="preprocessor"></span></div> -<div class="line"><a name="l06970"></a><span class="lineno"> 6970</span> <span class="comment">/*</span></div> -<div class="line"><a name="l06971"></a><span class="lineno"> 6971</span> <span class="comment"> revision history:</span></div> -<div class="line"><a name="l06972"></a><span class="lineno"> 6972</span> <span class="comment"> 2.16 (2017-07-23) all functions have 16-bit variants;</span></div> -<div class="line"><a name="l06973"></a><span class="lineno"> 6973</span> <span class="comment"> STBI_NO_STDIO works again;</span></div> -<div class="line"><a name="l06974"></a><span class="lineno"> 6974</span> <span class="comment"> compilation fixes;</span></div> -<div class="line"><a name="l06975"></a><span class="lineno"> 6975</span> <span class="comment"> fix rounding in unpremultiply;</span></div> -<div class="line"><a name="l06976"></a><span class="lineno"> 6976</span> <span class="comment"> optimize vertical flip;</span></div> -<div class="line"><a name="l06977"></a><span class="lineno"> 6977</span> <span class="comment"> disable raw_len validation;</span></div> -<div class="line"><a name="l06978"></a><span class="lineno"> 6978</span> <span class="comment"> documentation fixes</span></div> -<div class="line"><a name="l06979"></a><span class="lineno"> 6979</span> <span class="comment"> 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode;</span></div> -<div class="line"><a name="l06980"></a><span class="lineno"> 6980</span> <span class="comment"> warning fixes; disable run-time SSE detection on gcc;</span></div> -<div class="line"><a name="l06981"></a><span class="lineno"> 6981</span> <span class="comment"> uniform handling of optional "return" values;</span></div> -<div class="line"><a name="l06982"></a><span class="lineno"> 6982</span> <span class="comment"> thread-safe initialization of zlib tables</span></div> -<div class="line"><a name="l06983"></a><span class="lineno"> 6983</span> <span class="comment"> 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs</span></div> -<div class="line"><a name="l06984"></a><span class="lineno"> 6984</span> <span class="comment"> 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now</span></div> -<div class="line"><a name="l06985"></a><span class="lineno"> 6985</span> <span class="comment"> 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes</span></div> -<div class="line"><a name="l06986"></a><span class="lineno"> 6986</span> <span class="comment"> 2.11 (2016-04-02) allocate large structures on the stack</span></div> -<div class="line"><a name="l06987"></a><span class="lineno"> 6987</span> <span class="comment"> remove white matting for transparent PSD</span></div> -<div class="line"><a name="l06988"></a><span class="lineno"> 6988</span> <span class="comment"> fix reported channel count for PNG & BMP</span></div> -<div class="line"><a name="l06989"></a><span class="lineno"> 6989</span> <span class="comment"> re-enable SSE2 in non-gcc 64-bit</span></div> -<div class="line"><a name="l06990"></a><span class="lineno"> 6990</span> <span class="comment"> support RGB-formatted JPEG</span></div> -<div class="line"><a name="l06991"></a><span class="lineno"> 6991</span> <span class="comment"> read 16-bit PNGs (only as 8-bit)</span></div> -<div class="line"><a name="l06992"></a><span class="lineno"> 6992</span> <span class="comment"> 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED</span></div> -<div class="line"><a name="l06993"></a><span class="lineno"> 6993</span> <span class="comment"> 2.09 (2016-01-16) allow comments in PNM files</span></div> -<div class="line"><a name="l06994"></a><span class="lineno"> 6994</span> <span class="comment"> 16-bit-per-pixel TGA (not bit-per-component)</span></div> -<div class="line"><a name="l06995"></a><span class="lineno"> 6995</span> <span class="comment"> info() for TGA could break due to .hdr handling</span></div> -<div class="line"><a name="l06996"></a><span class="lineno"> 6996</span> <span class="comment"> info() for BMP to shares code instead of sloppy parse</span></div> -<div class="line"><a name="l06997"></a><span class="lineno"> 6997</span> <span class="comment"> can use STBI_REALLOC_SIZED if allocator doesn't support realloc</span></div> -<div class="line"><a name="l06998"></a><span class="lineno"> 6998</span> <span class="comment"> code cleanup</span></div> -<div class="line"><a name="l06999"></a><span class="lineno"> 6999</span> <span class="comment"> 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA</span></div> -<div class="line"><a name="l07000"></a><span class="lineno"> 7000</span> <span class="comment"> 2.07 (2015-09-13) fix compiler warnings</span></div> -<div class="line"><a name="l07001"></a><span class="lineno"> 7001</span> <span class="comment"> partial animated GIF support</span></div> -<div class="line"><a name="l07002"></a><span class="lineno"> 7002</span> <span class="comment"> limited 16-bpc PSD support</span></div> -<div class="line"><a name="l07003"></a><span class="lineno"> 7003</span> <span class="comment"> #ifdef unused functions</span></div> -<div class="line"><a name="l07004"></a><span class="lineno"> 7004</span> <span class="comment"> bug with < 92 byte PIC,PNM,HDR,TGA</span></div> -<div class="line"><a name="l07005"></a><span class="lineno"> 7005</span> <span class="comment"> 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value</span></div> -<div class="line"><a name="l07006"></a><span class="lineno"> 7006</span> <span class="comment"> 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning</span></div> -<div class="line"><a name="l07007"></a><span class="lineno"> 7007</span> <span class="comment"> 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit</span></div> -<div class="line"><a name="l07008"></a><span class="lineno"> 7008</span> <span class="comment"> 2.03 (2015-04-12) extra corruption checking (mmozeiko)</span></div> -<div class="line"><a name="l07009"></a><span class="lineno"> 7009</span> <span class="comment"> stbi_set_flip_vertically_on_load (nguillemot)</span></div> -<div class="line"><a name="l07010"></a><span class="lineno"> 7010</span> <span class="comment"> fix NEON support; fix mingw support</span></div> -<div class="line"><a name="l07011"></a><span class="lineno"> 7011</span> <span class="comment"> 2.02 (2015-01-19) fix incorrect assert, fix warning</span></div> -<div class="line"><a name="l07012"></a><span class="lineno"> 7012</span> <span class="comment"> 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2</span></div> -<div class="line"><a name="l07013"></a><span class="lineno"> 7013</span> <span class="comment"> 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG</span></div> -<div class="line"><a name="l07014"></a><span class="lineno"> 7014</span> <span class="comment"> 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg)</span></div> -<div class="line"><a name="l07015"></a><span class="lineno"> 7015</span> <span class="comment"> progressive JPEG (stb)</span></div> -<div class="line"><a name="l07016"></a><span class="lineno"> 7016</span> <span class="comment"> PGM/PPM support (Ken Miller)</span></div> -<div class="line"><a name="l07017"></a><span class="lineno"> 7017</span> <span class="comment"> STBI_MALLOC,STBI_REALLOC,STBI_FREE</span></div> -<div class="line"><a name="l07018"></a><span class="lineno"> 7018</span> <span class="comment"> GIF bugfix -- seemingly never worked</span></div> -<div class="line"><a name="l07019"></a><span class="lineno"> 7019</span> <span class="comment"> STBI_NO_*, STBI_ONLY_*</span></div> -<div class="line"><a name="l07020"></a><span class="lineno"> 7020</span> <span class="comment"> 1.48 (2014-12-14) fix incorrectly-named assert()</span></div> -<div class="line"><a name="l07021"></a><span class="lineno"> 7021</span> <span class="comment"> 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb)</span></div> -<div class="line"><a name="l07022"></a><span class="lineno"> 7022</span> <span class="comment"> optimize PNG (ryg)</span></div> -<div class="line"><a name="l07023"></a><span class="lineno"> 7023</span> <span class="comment"> fix bug in interlaced PNG with user-specified channel count (stb)</span></div> -<div class="line"><a name="l07024"></a><span class="lineno"> 7024</span> <span class="comment"> 1.46 (2014-08-26)</span></div> -<div class="line"><a name="l07025"></a><span class="lineno"> 7025</span> <span class="comment"> fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG</span></div> -<div class="line"><a name="l07026"></a><span class="lineno"> 7026</span> <span class="comment"> 1.45 (2014-08-16)</span></div> -<div class="line"><a name="l07027"></a><span class="lineno"> 7027</span> <span class="comment"> fix MSVC-ARM internal compiler error by wrapping malloc</span></div> -<div class="line"><a name="l07028"></a><span class="lineno"> 7028</span> <span class="comment"> 1.44 (2014-08-07)</span></div> -<div class="line"><a name="l07029"></a><span class="lineno"> 7029</span> <span class="comment"> various warning fixes from Ronny Chevalier</span></div> -<div class="line"><a name="l07030"></a><span class="lineno"> 7030</span> <span class="comment"> 1.43 (2014-07-15)</span></div> -<div class="line"><a name="l07031"></a><span class="lineno"> 7031</span> <span class="comment"> fix MSVC-only compiler problem in code changed in 1.42</span></div> -<div class="line"><a name="l07032"></a><span class="lineno"> 7032</span> <span class="comment"> 1.42 (2014-07-09)</span></div> -<div class="line"><a name="l07033"></a><span class="lineno"> 7033</span> <span class="comment"> don't define _CRT_SECURE_NO_WARNINGS (affects user code)</span></div> -<div class="line"><a name="l07034"></a><span class="lineno"> 7034</span> <span class="comment"> fixes to stbi__cleanup_jpeg path</span></div> -<div class="line"><a name="l07035"></a><span class="lineno"> 7035</span> <span class="comment"> added STBI_ASSERT to avoid requiring assert.h</span></div> -<div class="line"><a name="l07036"></a><span class="lineno"> 7036</span> <span class="comment"> 1.41 (2014-06-25)</span></div> -<div class="line"><a name="l07037"></a><span class="lineno"> 7037</span> <span class="comment"> fix search&replace from 1.36 that messed up comments/error messages</span></div> -<div class="line"><a name="l07038"></a><span class="lineno"> 7038</span> <span class="comment"> 1.40 (2014-06-22)</span></div> -<div class="line"><a name="l07039"></a><span class="lineno"> 7039</span> <span class="comment"> fix gcc struct-initialization warning</span></div> -<div class="line"><a name="l07040"></a><span class="lineno"> 7040</span> <span class="comment"> 1.39 (2014-06-15)</span></div> -<div class="line"><a name="l07041"></a><span class="lineno"> 7041</span> <span class="comment"> fix to TGA optimization when req_comp != number of components in TGA;</span></div> -<div class="line"><a name="l07042"></a><span class="lineno"> 7042</span> <span class="comment"> fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite)</span></div> -<div class="line"><a name="l07043"></a><span class="lineno"> 7043</span> <span class="comment"> add support for BMP version 5 (more ignored fields)</span></div> -<div class="line"><a name="l07044"></a><span class="lineno"> 7044</span> <span class="comment"> 1.38 (2014-06-06)</span></div> -<div class="line"><a name="l07045"></a><span class="lineno"> 7045</span> <span class="comment"> suppress MSVC warnings on integer casts truncating values</span></div> -<div class="line"><a name="l07046"></a><span class="lineno"> 7046</span> <span class="comment"> fix accidental rename of 'skip' field of I/O</span></div> -<div class="line"><a name="l07047"></a><span class="lineno"> 7047</span> <span class="comment"> 1.37 (2014-06-04)</span></div> -<div class="line"><a name="l07048"></a><span class="lineno"> 7048</span> <span class="comment"> remove duplicate typedef</span></div> -<div class="line"><a name="l07049"></a><span class="lineno"> 7049</span> <span class="comment"> 1.36 (2014-06-03)</span></div> -<div class="line"><a name="l07050"></a><span class="lineno"> 7050</span> <span class="comment"> convert to header file single-file library</span></div> -<div class="line"><a name="l07051"></a><span class="lineno"> 7051</span> <span class="comment"> if de-iphone isn't set, load iphone images color-swapped instead of returning NULL</span></div> -<div class="line"><a name="l07052"></a><span class="lineno"> 7052</span> <span class="comment"> 1.35 (2014-05-27)</span></div> -<div class="line"><a name="l07053"></a><span class="lineno"> 7053</span> <span class="comment"> various warnings</span></div> -<div class="line"><a name="l07054"></a><span class="lineno"> 7054</span> <span class="comment"> fix broken STBI_SIMD path</span></div> -<div class="line"><a name="l07055"></a><span class="lineno"> 7055</span> <span class="comment"> fix bug where stbi_load_from_file no longer left file pointer in correct place</span></div> -<div class="line"><a name="l07056"></a><span class="lineno"> 7056</span> <span class="comment"> fix broken non-easy path for 32-bit BMP (possibly never used)</span></div> -<div class="line"><a name="l07057"></a><span class="lineno"> 7057</span> <span class="comment"> TGA optimization by Arseny Kapoulkine</span></div> -<div class="line"><a name="l07058"></a><span class="lineno"> 7058</span> <span class="comment"> 1.34 (unknown)</span></div> -<div class="line"><a name="l07059"></a><span class="lineno"> 7059</span> <span class="comment"> use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case</span></div> -<div class="line"><a name="l07060"></a><span class="lineno"> 7060</span> <span class="comment"> 1.33 (2011-07-14)</span></div> -<div class="line"><a name="l07061"></a><span class="lineno"> 7061</span> <span class="comment"> make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements</span></div> -<div class="line"><a name="l07062"></a><span class="lineno"> 7062</span> <span class="comment"> 1.32 (2011-07-13)</span></div> -<div class="line"><a name="l07063"></a><span class="lineno"> 7063</span> <span class="comment"> support for "info" function for all supported filetypes (SpartanJ)</span></div> -<div class="line"><a name="l07064"></a><span class="lineno"> 7064</span> <span class="comment"> 1.31 (2011-06-20)</span></div> -<div class="line"><a name="l07065"></a><span class="lineno"> 7065</span> <span class="comment"> a few more leak fixes, bug in PNG handling (SpartanJ)</span></div> -<div class="line"><a name="l07066"></a><span class="lineno"> 7066</span> <span class="comment"> 1.30 (2011-06-11)</span></div> -<div class="line"><a name="l07067"></a><span class="lineno"> 7067</span> <span class="comment"> added ability to load files via callbacks to accomidate custom input streams (Ben Wenger)</span></div> -<div class="line"><a name="l07068"></a><span class="lineno"> 7068</span> <span class="comment"> removed deprecated format-specific test/load functions</span></div> -<div class="line"><a name="l07069"></a><span class="lineno"> 7069</span> <span class="comment"> removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway</span></div> -<div class="line"><a name="l07070"></a><span class="lineno"> 7070</span> <span class="comment"> error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha)</span></div> -<div class="line"><a name="l07071"></a><span class="lineno"> 7071</span> <span class="comment"> fix inefficiency in decoding 32-bit BMP (David Woo)</span></div> -<div class="line"><a name="l07072"></a><span class="lineno"> 7072</span> <span class="comment"> 1.29 (2010-08-16)</span></div> -<div class="line"><a name="l07073"></a><span class="lineno"> 7073</span> <span class="comment"> various warning fixes from Aurelien Pocheville</span></div> -<div class="line"><a name="l07074"></a><span class="lineno"> 7074</span> <span class="comment"> 1.28 (2010-08-01)</span></div> -<div class="line"><a name="l07075"></a><span class="lineno"> 7075</span> <span class="comment"> fix bug in GIF palette transparency (SpartanJ)</span></div> -<div class="line"><a name="l07076"></a><span class="lineno"> 7076</span> <span class="comment"> 1.27 (2010-08-01)</span></div> -<div class="line"><a name="l07077"></a><span class="lineno"> 7077</span> <span class="comment"> cast-to-stbi_uc to fix warnings</span></div> -<div class="line"><a name="l07078"></a><span class="lineno"> 7078</span> <span class="comment"> 1.26 (2010-07-24)</span></div> -<div class="line"><a name="l07079"></a><span class="lineno"> 7079</span> <span class="comment"> fix bug in file buffering for PNG reported by SpartanJ</span></div> -<div class="line"><a name="l07080"></a><span class="lineno"> 7080</span> <span class="comment"> 1.25 (2010-07-17)</span></div> -<div class="line"><a name="l07081"></a><span class="lineno"> 7081</span> <span class="comment"> refix trans_data warning (Won Chun)</span></div> -<div class="line"><a name="l07082"></a><span class="lineno"> 7082</span> <span class="comment"> 1.24 (2010-07-12)</span></div> -<div class="line"><a name="l07083"></a><span class="lineno"> 7083</span> <span class="comment"> perf improvements reading from files on platforms with lock-heavy fgetc()</span></div> -<div class="line"><a name="l07084"></a><span class="lineno"> 7084</span> <span class="comment"> minor perf improvements for jpeg</span></div> -<div class="line"><a name="l07085"></a><span class="lineno"> 7085</span> <span class="comment"> deprecated type-specific functions so we'll get feedback if they're needed</span></div> -<div class="line"><a name="l07086"></a><span class="lineno"> 7086</span> <span class="comment"> attempt to fix trans_data warning (Won Chun)</span></div> -<div class="line"><a name="l07087"></a><span class="lineno"> 7087</span> <span class="comment"> 1.23 fixed bug in iPhone support</span></div> -<div class="line"><a name="l07088"></a><span class="lineno"> 7088</span> <span class="comment"> 1.22 (2010-07-10)</span></div> -<div class="line"><a name="l07089"></a><span class="lineno"> 7089</span> <span class="comment"> removed image *writing* support</span></div> -<div class="line"><a name="l07090"></a><span class="lineno"> 7090</span> <span class="comment"> stbi_info support from Jetro Lauha</span></div> -<div class="line"><a name="l07091"></a><span class="lineno"> 7091</span> <span class="comment"> GIF support from Jean-Marc Lienher</span></div> -<div class="line"><a name="l07092"></a><span class="lineno"> 7092</span> <span class="comment"> iPhone PNG-extensions from James Brown</span></div> -<div class="line"><a name="l07093"></a><span class="lineno"> 7093</span> <span class="comment"> warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva)</span></div> -<div class="line"><a name="l07094"></a><span class="lineno"> 7094</span> <span class="comment"> 1.21 fix use of 'stbi_uc' in header (reported by jon blow)</span></div> -<div class="line"><a name="l07095"></a><span class="lineno"> 7095</span> <span class="comment"> 1.20 added support for Softimage PIC, by Tom Seddon</span></div> -<div class="line"><a name="l07096"></a><span class="lineno"> 7096</span> <span class="comment"> 1.19 bug in interlaced PNG corruption check (found by ryg)</span></div> -<div class="line"><a name="l07097"></a><span class="lineno"> 7097</span> <span class="comment"> 1.18 (2008-08-02)</span></div> -<div class="line"><a name="l07098"></a><span class="lineno"> 7098</span> <span class="comment"> fix a threading bug (local mutable static)</span></div> -<div class="line"><a name="l07099"></a><span class="lineno"> 7099</span> <span class="comment"> 1.17 support interlaced PNG</span></div> -<div class="line"><a name="l07100"></a><span class="lineno"> 7100</span> <span class="comment"> 1.16 major bugfix - stbi__convert_format converted one too many pixels</span></div> -<div class="line"><a name="l07101"></a><span class="lineno"> 7101</span> <span class="comment"> 1.15 initialize some fields for thread safety</span></div> -<div class="line"><a name="l07102"></a><span class="lineno"> 7102</span> <span class="comment"> 1.14 fix threadsafe conversion bug</span></div> -<div class="line"><a name="l07103"></a><span class="lineno"> 7103</span> <span class="comment"> header-file-only version (#define STBI_HEADER_FILE_ONLY before including)</span></div> -<div class="line"><a name="l07104"></a><span class="lineno"> 7104</span> <span class="comment"> 1.13 threadsafe</span></div> -<div class="line"><a name="l07105"></a><span class="lineno"> 7105</span> <span class="comment"> 1.12 const qualifiers in the API</span></div> -<div class="line"><a name="l07106"></a><span class="lineno"> 7106</span> <span class="comment"> 1.11 Support installable IDCT, colorspace conversion routines</span></div> -<div class="line"><a name="l07107"></a><span class="lineno"> 7107</span> <span class="comment"> 1.10 Fixes for 64-bit (don't use "unsigned long")</span></div> -<div class="line"><a name="l07108"></a><span class="lineno"> 7108</span> <span class="comment"> optimized upsampling by Fabian "ryg" Giesen</span></div> -<div class="line"><a name="l07109"></a><span class="lineno"> 7109</span> <span class="comment"> 1.09 Fix format-conversion for PSD code (bad global variables!)</span></div> -<div class="line"><a name="l07110"></a><span class="lineno"> 7110</span> <span class="comment"> 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz</span></div> -<div class="line"><a name="l07111"></a><span class="lineno"> 7111</span> <span class="comment"> 1.07 attempt to fix C++ warning/errors again</span></div> -<div class="line"><a name="l07112"></a><span class="lineno"> 7112</span> <span class="comment"> 1.06 attempt to fix C++ warning/errors again</span></div> -<div class="line"><a name="l07113"></a><span class="lineno"> 7113</span> <span class="comment"> 1.05 fix TGA loading to return correct *comp and use good luminance calc</span></div> -<div class="line"><a name="l07114"></a><span class="lineno"> 7114</span> <span class="comment"> 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free</span></div> -<div class="line"><a name="l07115"></a><span class="lineno"> 7115</span> <span class="comment"> 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR</span></div> -<div class="line"><a name="l07116"></a><span class="lineno"> 7116</span> <span class="comment"> 1.02 support for (subset of) HDR files, float interface for preferred access to them</span></div> -<div class="line"><a name="l07117"></a><span class="lineno"> 7117</span> <span class="comment"> 1.01 fix bug: possible bug in handling right-side up bmps... not sure</span></div> -<div class="line"><a name="l07118"></a><span class="lineno"> 7118</span> <span class="comment"> fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all</span></div> -<div class="line"><a name="l07119"></a><span class="lineno"> 7119</span> <span class="comment"> 1.00 interface to zlib that skips zlib header</span></div> -<div class="line"><a name="l07120"></a><span class="lineno"> 7120</span> <span class="comment"> 0.99 correct handling of alpha in palette</span></div> -<div class="line"><a name="l07121"></a><span class="lineno"> 7121</span> <span class="comment"> 0.98 TGA loader by lonesock; dynamically add loaders (untested)</span></div> -<div class="line"><a name="l07122"></a><span class="lineno"> 7122</span> <span class="comment"> 0.97 jpeg errors on too large a file; also catch another malloc failure</span></div> -<div class="line"><a name="l07123"></a><span class="lineno"> 7123</span> <span class="comment"> 0.96 fix detection of invalid v value - particleman@mollyrocket forum</span></div> -<div class="line"><a name="l07124"></a><span class="lineno"> 7124</span> <span class="comment"> 0.95 during header scan, seek to markers in case of padding</span></div> -<div class="line"><a name="l07125"></a><span class="lineno"> 7125</span> <span class="comment"> 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same</span></div> -<div class="line"><a name="l07126"></a><span class="lineno"> 7126</span> <span class="comment"> 0.93 handle jpegtran output; verbose errors</span></div> -<div class="line"><a name="l07127"></a><span class="lineno"> 7127</span> <span class="comment"> 0.92 read 4,8,16,24,32-bit BMP files of several formats</span></div> -<div class="line"><a name="l07128"></a><span class="lineno"> 7128</span> <span class="comment"> 0.91 output 24-bit Windows 3.0 BMP files</span></div> -<div class="line"><a name="l07129"></a><span class="lineno"> 7129</span> <span class="comment"> 0.90 fix a few more warnings; bump version number to approach 1.0</span></div> -<div class="line"><a name="l07130"></a><span class="lineno"> 7130</span> <span class="comment"> 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd</span></div> -<div class="line"><a name="l07131"></a><span class="lineno"> 7131</span> <span class="comment"> 0.60 fix compiling as c++</span></div> -<div class="line"><a name="l07132"></a><span class="lineno"> 7132</span> <span class="comment"> 0.59 fix warnings: merge Dave Moore's -Wall fixes</span></div> -<div class="line"><a name="l07133"></a><span class="lineno"> 7133</span> <span class="comment"> 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian</span></div> -<div class="line"><a name="l07134"></a><span class="lineno"> 7134</span> <span class="comment"> 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available</span></div> -<div class="line"><a name="l07135"></a><span class="lineno"> 7135</span> <span class="comment"> 0.56 fix bug: zlib uncompressed mode len vs. nlen</span></div> -<div class="line"><a name="l07136"></a><span class="lineno"> 7136</span> <span class="comment"> 0.55 fix bug: restart_interval not initialized to 0</span></div> -<div class="line"><a name="l07137"></a><span class="lineno"> 7137</span> <span class="comment"> 0.54 allow NULL for 'int *comp'</span></div> -<div class="line"><a name="l07138"></a><span class="lineno"> 7138</span> <span class="comment"> 0.53 fix bug in png 3->4; speedup png decoding</span></div> -<div class="line"><a name="l07139"></a><span class="lineno"> 7139</span> <span class="comment"> 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments</span></div> -<div class="line"><a name="l07140"></a><span class="lineno"> 7140</span> <span class="comment"> 0.51 obey req_comp requests, 1-component jpegs return as 1-component,</span></div> -<div class="line"><a name="l07141"></a><span class="lineno"> 7141</span> <span class="comment"> on 'test' only check type, not whether we support this variant</span></div> -<div class="line"><a name="l07142"></a><span class="lineno"> 7142</span> <span class="comment"> 0.50 (2006-11-19)</span></div> -<div class="line"><a name="l07143"></a><span class="lineno"> 7143</span> <span class="comment"> first released version</span></div> -<div class="line"><a name="l07144"></a><span class="lineno"> 7144</span> <span class="comment">*/</span></div> -<div class="line"><a name="l07145"></a><span class="lineno"> 7145</span> </div> +<div class="line"><a name="l06859"></a><span class="lineno"> 6859</span>  <span class="keywordflow">for</span> (i = 0; i < count; ++i, dest += 4)</div> +<div class="line"><a name="l06860"></a><span class="lineno"> 6860</span>  stbi__copyval(packet->channel, dest, value);</div> +<div class="line"><a name="l06861"></a><span class="lineno"> 6861</span>  } <span class="keywordflow">else</span> { <span class="comment">// Raw</span></div> +<div class="line"><a name="l06862"></a><span class="lineno"> 6862</span>  ++count;</div> +<div class="line"><a name="l06863"></a><span class="lineno"> 6863</span>  <span class="keywordflow">if</span> (count > left)</div> +<div class="line"><a name="l06864"></a><span class="lineno"> 6864</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>, <span class="stringliteral">"scanline overrun"</span>);</div> +<div class="line"><a name="l06865"></a><span class="lineno"> 6865</span> </div> +<div class="line"><a name="l06866"></a><span class="lineno"> 6866</span>  <span class="keywordflow">for</span> (i = 0; i < count; ++i, dest += 4)</div> +<div class="line"><a name="l06867"></a><span class="lineno"> 6867</span>  <span class="keywordflow">if</span> (!stbi__readval(s, packet->channel, dest))</div> +<div class="line"><a name="l06868"></a><span class="lineno"> 6868</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06869"></a><span class="lineno"> 6869</span>  }</div> +<div class="line"><a name="l06870"></a><span class="lineno"> 6870</span>  left -= count;</div> +<div class="line"><a name="l06871"></a><span class="lineno"> 6871</span>  }</div> +<div class="line"><a name="l06872"></a><span class="lineno"> 6872</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l06873"></a><span class="lineno"> 6873</span>  }</div> +<div class="line"><a name="l06874"></a><span class="lineno"> 6874</span>  }</div> +<div class="line"><a name="l06875"></a><span class="lineno"> 6875</span>  }</div> +<div class="line"><a name="l06876"></a><span class="lineno"> 6876</span>  }</div> +<div class="line"><a name="l06877"></a><span class="lineno"> 6877</span> </div> +<div class="line"><a name="l06878"></a><span class="lineno"> 6878</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l06879"></a><span class="lineno"> 6879</span> }</div> +<div class="line"><a name="l06880"></a><span class="lineno"> 6880</span> </div> +<div class="line"><a name="l06881"></a><span class="lineno"> 6881</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pic_load(stbi__context *s, <span class="keywordtype">int</span> *px, <span class="keywordtype">int</span> *py, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l06882"></a><span class="lineno"> 6882</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l06883"></a><span class="lineno"> 6883</span> {</div> +<div class="line"><a name="l06884"></a><span class="lineno"> 6884</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *result;</div> +<div class="line"><a name="l06885"></a><span class="lineno"> 6885</span>  <span class="keywordtype">int</span> i, x, y, internal_comp;</div> +<div class="line"><a name="l06886"></a><span class="lineno"> 6886</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l06887"></a><span class="lineno"> 6887</span> </div> +<div class="line"><a name="l06888"></a><span class="lineno"> 6888</span>  <span class="keywordflow">if</span> (!comp)</div> +<div class="line"><a name="l06889"></a><span class="lineno"> 6889</span>  comp = &internal_comp;</div> +<div class="line"><a name="l06890"></a><span class="lineno"> 6890</span> </div> +<div class="line"><a name="l06891"></a><span class="lineno"> 6891</span>  <span class="keywordflow">for</span> (i = 0; i < 92; ++i)</div> +<div class="line"><a name="l06892"></a><span class="lineno"> 6892</span>  stbi__get8(s);</div> +<div class="line"><a name="l06893"></a><span class="lineno"> 6893</span> </div> +<div class="line"><a name="l06894"></a><span class="lineno"> 6894</span>  x = stbi__get16be(s);</div> +<div class="line"><a name="l06895"></a><span class="lineno"> 6895</span>  y = stbi__get16be(s);</div> +<div class="line"><a name="l06896"></a><span class="lineno"> 6896</span>  <span class="keywordflow">if</span> (stbi__at_eof(s))</div> +<div class="line"><a name="l06897"></a><span class="lineno"> 6897</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad file"</span>, <span class="stringliteral">"file too short (pic header)"</span>);</div> +<div class="line"><a name="l06898"></a><span class="lineno"> 6898</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(x, y, 4, 0))</div> +<div class="line"><a name="l06899"></a><span class="lineno"> 6899</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"PIC image too large to decode"</span>);</div> +<div class="line"><a name="l06900"></a><span class="lineno"> 6900</span> </div> +<div class="line"><a name="l06901"></a><span class="lineno"> 6901</span>  stbi__get32be(s); <span class="comment">// skip `ratio'</span></div> +<div class="line"><a name="l06902"></a><span class="lineno"> 6902</span>  stbi__get16be(s); <span class="comment">// skip `fields'</span></div> +<div class="line"><a name="l06903"></a><span class="lineno"> 6903</span>  stbi__get16be(s); <span class="comment">// skip `pad'</span></div> +<div class="line"><a name="l06904"></a><span class="lineno"> 6904</span> </div> +<div class="line"><a name="l06905"></a><span class="lineno"> 6905</span>  <span class="comment">// intermediate buffer is RGBA</span></div> +<div class="line"><a name="l06906"></a><span class="lineno"> 6906</span>  result = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(x, y, 4, 0);</div> +<div class="line"><a name="l06907"></a><span class="lineno"> 6907</span>  memset(result, 0xff, x * y * 4);</div> +<div class="line"><a name="l06908"></a><span class="lineno"> 6908</span> </div> +<div class="line"><a name="l06909"></a><span class="lineno"> 6909</span>  <span class="keywordflow">if</span> (!stbi__pic_load_core(s, x, y, comp, result)) {</div> +<div class="line"><a name="l06910"></a><span class="lineno"> 6910</span>  STBI_FREE(result);</div> +<div class="line"><a name="l06911"></a><span class="lineno"> 6911</span>  result = 0;</div> +<div class="line"><a name="l06912"></a><span class="lineno"> 6912</span>  }</div> +<div class="line"><a name="l06913"></a><span class="lineno"> 6913</span>  *px = x;</div> +<div class="line"><a name="l06914"></a><span class="lineno"> 6914</span>  *py = y;</div> +<div class="line"><a name="l06915"></a><span class="lineno"> 6915</span>  <span class="keywordflow">if</span> (req_comp == 0)</div> +<div class="line"><a name="l06916"></a><span class="lineno"> 6916</span>  req_comp = *comp;</div> +<div class="line"><a name="l06917"></a><span class="lineno"> 6917</span>  result = stbi__convert_format(result, 4, req_comp, x, y);</div> +<div class="line"><a name="l06918"></a><span class="lineno"> 6918</span> </div> +<div class="line"><a name="l06919"></a><span class="lineno"> 6919</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l06920"></a><span class="lineno"> 6920</span> }</div> +<div class="line"><a name="l06921"></a><span class="lineno"> 6921</span> </div> +<div class="line"><a name="l06922"></a><span class="lineno"> 6922</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_test(stbi__context *s)</div> +<div class="line"><a name="l06923"></a><span class="lineno"> 6923</span> {</div> +<div class="line"><a name="l06924"></a><span class="lineno"> 6924</span>  <span class="keywordtype">int</span> r = stbi__pic_test_core(s);</div> +<div class="line"><a name="l06925"></a><span class="lineno"> 6925</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06926"></a><span class="lineno"> 6926</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l06927"></a><span class="lineno"> 6927</span> }</div> +<div class="line"><a name="l06928"></a><span class="lineno"> 6928</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l06929"></a><span class="lineno"> 6929</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l06930"></a><span class="lineno"> 6930</span>  <span class="comment">// *************************************************************************************************</span></div> +<div class="line"><a name="l06931"></a><span class="lineno"> 6931</span>  <span class="comment">// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by</span></div> +<div class="line"><a name="l06932"></a><span class="lineno"> 6932</span>  <span class="comment">// stb</span></div> +<div class="line"><a name="l06933"></a><span class="lineno"> 6933</span> </div> +<div class="line"><a name="l06934"></a><span class="lineno"> 6934</span> <span class="preprocessor">#ifndef STBI_NO_GIF</span></div> +<div class="line"><a name="l06935"></a><span class="lineno"> 6935</span> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l06936"></a><span class="lineno"> 6936</span>  stbi__int16 prefix;</div> +<div class="line"><a name="l06937"></a><span class="lineno"> 6937</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> first;</div> +<div class="line"><a name="l06938"></a><span class="lineno"> 6938</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> suffix;</div> +<div class="line"><a name="l06939"></a><span class="lineno"> 6939</span> } stbi__gif_lzw;</div> +<div class="line"><a name="l06940"></a><span class="lineno"> 6940</span> </div> +<div class="line"><a name="l06941"></a><span class="lineno"> 6941</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div> +<div class="line"><a name="l06942"></a><span class="lineno"> 6942</span>  <span class="keywordtype">int</span> w, h;</div> +<div class="line"><a name="l06943"></a><span class="lineno"> 6943</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out, *old_out; <span class="comment">// output buffer (always 4 components)</span></div> +<div class="line"><a name="l06944"></a><span class="lineno"> 6944</span>  <span class="keywordtype">int</span> flags, bgindex, ratio, transparent, eflags, delay;</div> +<div class="line"><a name="l06945"></a><span class="lineno"> 6945</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> pal[256][4];</div> +<div class="line"><a name="l06946"></a><span class="lineno"> 6946</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> lpal[256][4];</div> +<div class="line"><a name="l06947"></a><span class="lineno"> 6947</span>  stbi__gif_lzw codes[4096];</div> +<div class="line"><a name="l06948"></a><span class="lineno"> 6948</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *color_table;</div> +<div class="line"><a name="l06949"></a><span class="lineno"> 6949</span>  <span class="keywordtype">int</span> parse, step;</div> +<div class="line"><a name="l06950"></a><span class="lineno"> 6950</span>  <span class="keywordtype">int</span> lflags;</div> +<div class="line"><a name="l06951"></a><span class="lineno"> 6951</span>  <span class="keywordtype">int</span> start_x, start_y;</div> +<div class="line"><a name="l06952"></a><span class="lineno"> 6952</span>  <span class="keywordtype">int</span> max_x, max_y;</div> +<div class="line"><a name="l06953"></a><span class="lineno"> 6953</span>  <span class="keywordtype">int</span> cur_x, cur_y;</div> +<div class="line"><a name="l06954"></a><span class="lineno"> 6954</span>  <span class="keywordtype">int</span> line_size;</div> +<div class="line"><a name="l06955"></a><span class="lineno"> 6955</span> } stbi__gif;</div> +<div class="line"><a name="l06956"></a><span class="lineno"> 6956</span> </div> +<div class="line"><a name="l06957"></a><span class="lineno"> 6957</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_test_raw(stbi__context *s)</div> +<div class="line"><a name="l06958"></a><span class="lineno"> 6958</span> {</div> +<div class="line"><a name="l06959"></a><span class="lineno"> 6959</span>  <span class="keywordtype">int</span> sz;</div> +<div class="line"><a name="l06960"></a><span class="lineno"> 6960</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'G'</span> || stbi__get8(s) != <span class="charliteral">'I'</span> || stbi__get8(s) != <span class="charliteral">'F'</span> ||</div> +<div class="line"><a name="l06961"></a><span class="lineno"> 6961</span>  stbi__get8(s) != <span class="charliteral">'8'</span>)</div> +<div class="line"><a name="l06962"></a><span class="lineno"> 6962</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06963"></a><span class="lineno"> 6963</span>  sz = stbi__get8(s);</div> +<div class="line"><a name="l06964"></a><span class="lineno"> 6964</span>  <span class="keywordflow">if</span> (sz != <span class="charliteral">'9'</span> && sz != <span class="charliteral">'7'</span>)</div> +<div class="line"><a name="l06965"></a><span class="lineno"> 6965</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06966"></a><span class="lineno"> 6966</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'a'</span>)</div> +<div class="line"><a name="l06967"></a><span class="lineno"> 6967</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l06968"></a><span class="lineno"> 6968</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l06969"></a><span class="lineno"> 6969</span> }</div> +<div class="line"><a name="l06970"></a><span class="lineno"> 6970</span> </div> +<div class="line"><a name="l06971"></a><span class="lineno"> 6971</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_test(stbi__context *s)</div> +<div class="line"><a name="l06972"></a><span class="lineno"> 6972</span> {</div> +<div class="line"><a name="l06973"></a><span class="lineno"> 6973</span>  <span class="keywordtype">int</span> r = stbi__gif_test_raw(s);</div> +<div class="line"><a name="l06974"></a><span class="lineno"> 6974</span>  stbi__rewind(s);</div> +<div class="line"><a name="l06975"></a><span class="lineno"> 6975</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l06976"></a><span class="lineno"> 6976</span> }</div> +<div class="line"><a name="l06977"></a><span class="lineno"> 6977</span> </div> +<div class="line"><a name="l06978"></a><span class="lineno"> 6978</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__gif_parse_colortable(stbi__context *s, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> pal[256][4],</div> +<div class="line"><a name="l06979"></a><span class="lineno"> 6979</span>  <span class="keywordtype">int</span> num_entries, <span class="keywordtype">int</span> transp)</div> +<div class="line"><a name="l06980"></a><span class="lineno"> 6980</span> {</div> +<div class="line"><a name="l06981"></a><span class="lineno"> 6981</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l06982"></a><span class="lineno"> 6982</span>  <span class="keywordflow">for</span> (i = 0; i < num_entries; ++i) {</div> +<div class="line"><a name="l06983"></a><span class="lineno"> 6983</span>  pal[i][2] = stbi__get8(s);</div> +<div class="line"><a name="l06984"></a><span class="lineno"> 6984</span>  pal[i][1] = stbi__get8(s);</div> +<div class="line"><a name="l06985"></a><span class="lineno"> 6985</span>  pal[i][0] = stbi__get8(s);</div> +<div class="line"><a name="l06986"></a><span class="lineno"> 6986</span>  pal[i][3] = transp == i ? 0 : 255;</div> +<div class="line"><a name="l06987"></a><span class="lineno"> 6987</span>  }</div> +<div class="line"><a name="l06988"></a><span class="lineno"> 6988</span> }</div> +<div class="line"><a name="l06989"></a><span class="lineno"> 6989</span> </div> +<div class="line"><a name="l06990"></a><span class="lineno"> 6990</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_header(stbi__context *s, stbi__gif *g, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l06991"></a><span class="lineno"> 6991</span>  <span class="keywordtype">int</span> is_info)</div> +<div class="line"><a name="l06992"></a><span class="lineno"> 6992</span> {</div> +<div class="line"><a name="l06993"></a><span class="lineno"> 6993</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> version;</div> +<div class="line"><a name="l06994"></a><span class="lineno"> 6994</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'G'</span> || stbi__get8(s) != <span class="charliteral">'I'</span> || stbi__get8(s) != <span class="charliteral">'F'</span> ||</div> +<div class="line"><a name="l06995"></a><span class="lineno"> 6995</span>  stbi__get8(s) != <span class="charliteral">'8'</span>)</div> +<div class="line"><a name="l06996"></a><span class="lineno"> 6996</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not GIF"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l06997"></a><span class="lineno"> 6997</span> </div> +<div class="line"><a name="l06998"></a><span class="lineno"> 6998</span>  version = stbi__get8(s);</div> +<div class="line"><a name="l06999"></a><span class="lineno"> 6999</span>  <span class="keywordflow">if</span> (version != <span class="charliteral">'7'</span> && version != <span class="charliteral">'9'</span>)</div> +<div class="line"><a name="l07000"></a><span class="lineno"> 7000</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not GIF"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07001"></a><span class="lineno"> 7001</span>  <span class="keywordflow">if</span> (stbi__get8(s) != <span class="charliteral">'a'</span>)</div> +<div class="line"><a name="l07002"></a><span class="lineno"> 7002</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"not GIF"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07003"></a><span class="lineno"> 7003</span> </div> +<div class="line"><a name="l07004"></a><span class="lineno"> 7004</span>  stbi__g_failure_reason = <span class="stringliteral">""</span>;</div> +<div class="line"><a name="l07005"></a><span class="lineno"> 7005</span>  g->w = stbi__get16le(s);</div> +<div class="line"><a name="l07006"></a><span class="lineno"> 7006</span>  g->h = stbi__get16le(s);</div> +<div class="line"><a name="l07007"></a><span class="lineno"> 7007</span>  g->flags = stbi__get8(s);</div> +<div class="line"><a name="l07008"></a><span class="lineno"> 7008</span>  g->bgindex = stbi__get8(s);</div> +<div class="line"><a name="l07009"></a><span class="lineno"> 7009</span>  g->ratio = stbi__get8(s);</div> +<div class="line"><a name="l07010"></a><span class="lineno"> 7010</span>  g->transparent = -1;</div> +<div class="line"><a name="l07011"></a><span class="lineno"> 7011</span> </div> +<div class="line"><a name="l07012"></a><span class="lineno"> 7012</span>  <span class="keywordflow">if</span> (comp != 0)</div> +<div class="line"><a name="l07013"></a><span class="lineno"> 7013</span>  *comp = 4; <span class="comment">// can't actually tell whether it's 3 or 4 until we parse the</span></div> +<div class="line"><a name="l07014"></a><span class="lineno"> 7014</span>  <span class="comment">// comments</span></div> +<div class="line"><a name="l07015"></a><span class="lineno"> 7015</span> </div> +<div class="line"><a name="l07016"></a><span class="lineno"> 7016</span>  <span class="keywordflow">if</span> (is_info)</div> +<div class="line"><a name="l07017"></a><span class="lineno"> 7017</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07018"></a><span class="lineno"> 7018</span> </div> +<div class="line"><a name="l07019"></a><span class="lineno"> 7019</span>  <span class="keywordflow">if</span> (g->flags & 0x80)</div> +<div class="line"><a name="l07020"></a><span class="lineno"> 7020</span>  stbi__gif_parse_colortable(s, g->pal, 2 << (g->flags & 7), -1);</div> +<div class="line"><a name="l07021"></a><span class="lineno"> 7021</span> </div> +<div class="line"><a name="l07022"></a><span class="lineno"> 7022</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07023"></a><span class="lineno"> 7023</span> }</div> +<div class="line"><a name="l07024"></a><span class="lineno"> 7024</span> </div> +<div class="line"><a name="l07025"></a><span class="lineno"> 7025</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_info_raw(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07026"></a><span class="lineno"> 7026</span> {</div> +<div class="line"><a name="l07027"></a><span class="lineno"> 7027</span>  stbi__gif *g = (stbi__gif *)stbi__malloc(<span class="keyword">sizeof</span>(stbi__gif));</div> +<div class="line"><a name="l07028"></a><span class="lineno"> 7028</span>  <span class="keywordflow">if</span> (!stbi__gif_header(s, g, comp, 1)) {</div> +<div class="line"><a name="l07029"></a><span class="lineno"> 7029</span>  STBI_FREE(g);</div> +<div class="line"><a name="l07030"></a><span class="lineno"> 7030</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07031"></a><span class="lineno"> 7031</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07032"></a><span class="lineno"> 7032</span>  }</div> +<div class="line"><a name="l07033"></a><span class="lineno"> 7033</span>  <span class="keywordflow">if</span> (x)</div> +<div class="line"><a name="l07034"></a><span class="lineno"> 7034</span>  *x = g->w;</div> +<div class="line"><a name="l07035"></a><span class="lineno"> 7035</span>  <span class="keywordflow">if</span> (y)</div> +<div class="line"><a name="l07036"></a><span class="lineno"> 7036</span>  *y = g->h;</div> +<div class="line"><a name="l07037"></a><span class="lineno"> 7037</span>  STBI_FREE(g);</div> +<div class="line"><a name="l07038"></a><span class="lineno"> 7038</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07039"></a><span class="lineno"> 7039</span> }</div> +<div class="line"><a name="l07040"></a><span class="lineno"> 7040</span> </div> +<div class="line"><a name="l07041"></a><span class="lineno"> 7041</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__out_gif_code(stbi__gif *g, stbi__uint16 code)</div> +<div class="line"><a name="l07042"></a><span class="lineno"> 7042</span> {</div> +<div class="line"><a name="l07043"></a><span class="lineno"> 7043</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p, *c;</div> +<div class="line"><a name="l07044"></a><span class="lineno"> 7044</span> </div> +<div class="line"><a name="l07045"></a><span class="lineno"> 7045</span>  <span class="comment">// recurse to decode the prefixes, since the linked-list is backwards,</span></div> +<div class="line"><a name="l07046"></a><span class="lineno"> 7046</span>  <span class="comment">// and working backwards through an interleaved image would be nasty</span></div> +<div class="line"><a name="l07047"></a><span class="lineno"> 7047</span>  <span class="keywordflow">if</span> (g->codes[code].prefix >= 0)</div> +<div class="line"><a name="l07048"></a><span class="lineno"> 7048</span>  stbi__out_gif_code(g, g->codes[code].prefix);</div> +<div class="line"><a name="l07049"></a><span class="lineno"> 7049</span> </div> +<div class="line"><a name="l07050"></a><span class="lineno"> 7050</span>  <span class="keywordflow">if</span> (g->cur_y >= g->max_y)</div> +<div class="line"><a name="l07051"></a><span class="lineno"> 7051</span>  <span class="keywordflow">return</span>;</div> +<div class="line"><a name="l07052"></a><span class="lineno"> 7052</span> </div> +<div class="line"><a name="l07053"></a><span class="lineno"> 7053</span>  p = &g->out[g->cur_x + g->cur_y];</div> +<div class="line"><a name="l07054"></a><span class="lineno"> 7054</span>  c = &g->color_table[g->codes[code].suffix * 4];</div> +<div class="line"><a name="l07055"></a><span class="lineno"> 7055</span> </div> +<div class="line"><a name="l07056"></a><span class="lineno"> 7056</span>  <span class="keywordflow">if</span> (c[3] >= 128) {</div> +<div class="line"><a name="l07057"></a><span class="lineno"> 7057</span>  p[0] = c[2];</div> +<div class="line"><a name="l07058"></a><span class="lineno"> 7058</span>  p[1] = c[1];</div> +<div class="line"><a name="l07059"></a><span class="lineno"> 7059</span>  p[2] = c[0];</div> +<div class="line"><a name="l07060"></a><span class="lineno"> 7060</span>  p[3] = c[3];</div> +<div class="line"><a name="l07061"></a><span class="lineno"> 7061</span>  }</div> +<div class="line"><a name="l07062"></a><span class="lineno"> 7062</span>  g->cur_x += 4;</div> +<div class="line"><a name="l07063"></a><span class="lineno"> 7063</span> </div> +<div class="line"><a name="l07064"></a><span class="lineno"> 7064</span>  <span class="keywordflow">if</span> (g->cur_x >= g->max_x) {</div> +<div class="line"><a name="l07065"></a><span class="lineno"> 7065</span>  g->cur_x = g->start_x;</div> +<div class="line"><a name="l07066"></a><span class="lineno"> 7066</span>  g->cur_y += g->step;</div> +<div class="line"><a name="l07067"></a><span class="lineno"> 7067</span> </div> +<div class="line"><a name="l07068"></a><span class="lineno"> 7068</span>  <span class="keywordflow">while</span> (g->cur_y >= g->max_y && g->parse > 0) {</div> +<div class="line"><a name="l07069"></a><span class="lineno"> 7069</span>  g->step = (1 << g->parse) * g->line_size;</div> +<div class="line"><a name="l07070"></a><span class="lineno"> 7070</span>  g->cur_y = g->start_y + (g->step >> 1);</div> +<div class="line"><a name="l07071"></a><span class="lineno"> 7071</span>  --g->parse;</div> +<div class="line"><a name="l07072"></a><span class="lineno"> 7072</span>  }</div> +<div class="line"><a name="l07073"></a><span class="lineno"> 7073</span>  }</div> +<div class="line"><a name="l07074"></a><span class="lineno"> 7074</span> }</div> +<div class="line"><a name="l07075"></a><span class="lineno"> 7075</span> </div> +<div class="line"><a name="l07076"></a><span class="lineno"> 7076</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__process_gif_raster(stbi__context *s, stbi__gif *g)</div> +<div class="line"><a name="l07077"></a><span class="lineno"> 7077</span> {</div> +<div class="line"><a name="l07078"></a><span class="lineno"> 7078</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> lzw_cs;</div> +<div class="line"><a name="l07079"></a><span class="lineno"> 7079</span>  stbi__int32 len, init_code;</div> +<div class="line"><a name="l07080"></a><span class="lineno"> 7080</span>  stbi__uint32 first;</div> +<div class="line"><a name="l07081"></a><span class="lineno"> 7081</span>  stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear;</div> +<div class="line"><a name="l07082"></a><span class="lineno"> 7082</span>  stbi__gif_lzw *p;</div> +<div class="line"><a name="l07083"></a><span class="lineno"> 7083</span> </div> +<div class="line"><a name="l07084"></a><span class="lineno"> 7084</span>  lzw_cs = stbi__get8(s);</div> +<div class="line"><a name="l07085"></a><span class="lineno"> 7085</span>  <span class="keywordflow">if</span> (lzw_cs > 12)</div> +<div class="line"><a name="l07086"></a><span class="lineno"> 7086</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l07087"></a><span class="lineno"> 7087</span>  clear = 1 << lzw_cs;</div> +<div class="line"><a name="l07088"></a><span class="lineno"> 7088</span>  first = 1;</div> +<div class="line"><a name="l07089"></a><span class="lineno"> 7089</span>  codesize = lzw_cs + 1;</div> +<div class="line"><a name="l07090"></a><span class="lineno"> 7090</span>  codemask = (1 << codesize) - 1;</div> +<div class="line"><a name="l07091"></a><span class="lineno"> 7091</span>  bits = 0;</div> +<div class="line"><a name="l07092"></a><span class="lineno"> 7092</span>  valid_bits = 0;</div> +<div class="line"><a name="l07093"></a><span class="lineno"> 7093</span>  <span class="keywordflow">for</span> (init_code = 0; init_code < clear; init_code++) {</div> +<div class="line"><a name="l07094"></a><span class="lineno"> 7094</span>  g->codes[init_code].prefix = -1;</div> +<div class="line"><a name="l07095"></a><span class="lineno"> 7095</span>  g->codes[init_code].first = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)init_code;</div> +<div class="line"><a name="l07096"></a><span class="lineno"> 7096</span>  g->codes[init_code].suffix = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)init_code;</div> +<div class="line"><a name="l07097"></a><span class="lineno"> 7097</span>  }</div> +<div class="line"><a name="l07098"></a><span class="lineno"> 7098</span> </div> +<div class="line"><a name="l07099"></a><span class="lineno"> 7099</span>  <span class="comment">// support no starting clear code</span></div> +<div class="line"><a name="l07100"></a><span class="lineno"> 7100</span>  avail = clear + 2;</div> +<div class="line"><a name="l07101"></a><span class="lineno"> 7101</span>  oldcode = -1;</div> +<div class="line"><a name="l07102"></a><span class="lineno"> 7102</span> </div> +<div class="line"><a name="l07103"></a><span class="lineno"> 7103</span>  len = 0;</div> +<div class="line"><a name="l07104"></a><span class="lineno"> 7104</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l07105"></a><span class="lineno"> 7105</span>  <span class="keywordflow">if</span> (valid_bits < codesize) {</div> +<div class="line"><a name="l07106"></a><span class="lineno"> 7106</span>  <span class="keywordflow">if</span> (len == 0) {</div> +<div class="line"><a name="l07107"></a><span class="lineno"> 7107</span>  len = stbi__get8(s); <span class="comment">// start new block</span></div> +<div class="line"><a name="l07108"></a><span class="lineno"> 7108</span>  <span class="keywordflow">if</span> (len == 0)</div> +<div class="line"><a name="l07109"></a><span class="lineno"> 7109</span>  <span class="keywordflow">return</span> g->out;</div> +<div class="line"><a name="l07110"></a><span class="lineno"> 7110</span>  }</div> +<div class="line"><a name="l07111"></a><span class="lineno"> 7111</span>  --len;</div> +<div class="line"><a name="l07112"></a><span class="lineno"> 7112</span>  bits |= (stbi__int32)stbi__get8(s) << valid_bits;</div> +<div class="line"><a name="l07113"></a><span class="lineno"> 7113</span>  valid_bits += 8;</div> +<div class="line"><a name="l07114"></a><span class="lineno"> 7114</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07115"></a><span class="lineno"> 7115</span>  stbi__int32 code = bits & codemask;</div> +<div class="line"><a name="l07116"></a><span class="lineno"> 7116</span>  bits >>= codesize;</div> +<div class="line"><a name="l07117"></a><span class="lineno"> 7117</span>  valid_bits -= codesize;</div> +<div class="line"><a name="l07118"></a><span class="lineno"> 7118</span>  <span class="comment">// @OPTIMIZE: is there some way we can accelerate the non-clear</span></div> +<div class="line"><a name="l07119"></a><span class="lineno"> 7119</span>  <span class="comment">// path?</span></div> +<div class="line"><a name="l07120"></a><span class="lineno"> 7120</span>  <span class="keywordflow">if</span> (code == clear) { <span class="comment">// clear code</span></div> +<div class="line"><a name="l07121"></a><span class="lineno"> 7121</span>  codesize = lzw_cs + 1;</div> +<div class="line"><a name="l07122"></a><span class="lineno"> 7122</span>  codemask = (1 << codesize) - 1;</div> +<div class="line"><a name="l07123"></a><span class="lineno"> 7123</span>  avail = clear + 2;</div> +<div class="line"><a name="l07124"></a><span class="lineno"> 7124</span>  oldcode = -1;</div> +<div class="line"><a name="l07125"></a><span class="lineno"> 7125</span>  first = 0;</div> +<div class="line"><a name="l07126"></a><span class="lineno"> 7126</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (code == clear + 1) { <span class="comment">// end of stream code</span></div> +<div class="line"><a name="l07127"></a><span class="lineno"> 7127</span>  stbi__skip(s, len);</div> +<div class="line"><a name="l07128"></a><span class="lineno"> 7128</span>  <span class="keywordflow">while</span> ((len = stbi__get8(s)) > 0)</div> +<div class="line"><a name="l07129"></a><span class="lineno"> 7129</span>  stbi__skip(s, len);</div> +<div class="line"><a name="l07130"></a><span class="lineno"> 7130</span>  <span class="keywordflow">return</span> g->out;</div> +<div class="line"><a name="l07131"></a><span class="lineno"> 7131</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (code <= avail) {</div> +<div class="line"><a name="l07132"></a><span class="lineno"> 7132</span>  <span class="keywordflow">if</span> (first)</div> +<div class="line"><a name="l07133"></a><span class="lineno"> 7133</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"no clear code"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07134"></a><span class="lineno"> 7134</span> </div> +<div class="line"><a name="l07135"></a><span class="lineno"> 7135</span>  <span class="keywordflow">if</span> (oldcode >= 0) {</div> +<div class="line"><a name="l07136"></a><span class="lineno"> 7136</span>  p = &g->codes[avail++];</div> +<div class="line"><a name="l07137"></a><span class="lineno"> 7137</span>  <span class="keywordflow">if</span> (avail > 4096)</div> +<div class="line"><a name="l07138"></a><span class="lineno"> 7138</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too many codes"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07139"></a><span class="lineno"> 7139</span>  p->prefix = (stbi__int16)oldcode;</div> +<div class="line"><a name="l07140"></a><span class="lineno"> 7140</span>  p->first = g->codes[oldcode].first;</div> +<div class="line"><a name="l07141"></a><span class="lineno"> 7141</span>  p->suffix =</div> +<div class="line"><a name="l07142"></a><span class="lineno"> 7142</span>  (code == avail) ? p->first : g->codes[code].first;</div> +<div class="line"><a name="l07143"></a><span class="lineno"> 7143</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (code == avail)</div> +<div class="line"><a name="l07144"></a><span class="lineno"> 7144</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"illegal code in raster"</span>,</div> +<div class="line"><a name="l07145"></a><span class="lineno"> 7145</span>  <span class="stringliteral">"Corrupt GIF"</span>);</div> <div class="line"><a name="l07146"></a><span class="lineno"> 7146</span> </div> -<div class="line"><a name="l07147"></a><span class="lineno"> 7147</span> <span class="comment">/*</span></div> -<div class="line"><a name="l07148"></a><span class="lineno"> 7148</span> <span class="comment">------------------------------------------------------------------------------</span></div> -<div class="line"><a name="l07149"></a><span class="lineno"> 7149</span> <span class="comment">This software is available under 2 licenses -- choose whichever you prefer.</span></div> -<div class="line"><a name="l07150"></a><span class="lineno"> 7150</span> <span class="comment">------------------------------------------------------------------------------</span></div> -<div class="line"><a name="l07151"></a><span class="lineno"> 7151</span> <span class="comment">ALTERNATIVE A - MIT License</span></div> -<div class="line"><a name="l07152"></a><span class="lineno"> 7152</span> <span class="comment">Copyright (c) 2017 Sean Barrett</span></div> -<div class="line"><a name="l07153"></a><span class="lineno"> 7153</span> <span class="comment">Permission is hereby granted, free of charge, to any person obtaining a copy of</span></div> -<div class="line"><a name="l07154"></a><span class="lineno"> 7154</span> <span class="comment">this software and associated documentation files (the "Software"), to deal in</span></div> -<div class="line"><a name="l07155"></a><span class="lineno"> 7155</span> <span class="comment">the Software without restriction, including without limitation the rights to</span></div> -<div class="line"><a name="l07156"></a><span class="lineno"> 7156</span> <span class="comment">use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies</span></div> -<div class="line"><a name="l07157"></a><span class="lineno"> 7157</span> <span class="comment">of the Software, and to permit persons to whom the Software is furnished to do</span></div> -<div class="line"><a name="l07158"></a><span class="lineno"> 7158</span> <span class="comment">so, subject to the following conditions:</span></div> -<div class="line"><a name="l07159"></a><span class="lineno"> 7159</span> <span class="comment">The above copyright notice and this permission notice shall be included in all</span></div> -<div class="line"><a name="l07160"></a><span class="lineno"> 7160</span> <span class="comment">copies or substantial portions of the Software.</span></div> -<div class="line"><a name="l07161"></a><span class="lineno"> 7161</span> <span class="comment">THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div> -<div class="line"><a name="l07162"></a><span class="lineno"> 7162</span> <span class="comment">IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div> -<div class="line"><a name="l07163"></a><span class="lineno"> 7163</span> <span class="comment">FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div> -<div class="line"><a name="l07164"></a><span class="lineno"> 7164</span> <span class="comment">AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div> -<div class="line"><a name="l07165"></a><span class="lineno"> 7165</span> <span class="comment">LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div> -<div class="line"><a name="l07166"></a><span class="lineno"> 7166</span> <span class="comment">OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div> -<div class="line"><a name="l07167"></a><span class="lineno"> 7167</span> <span class="comment">SOFTWARE.</span></div> -<div class="line"><a name="l07168"></a><span class="lineno"> 7168</span> <span class="comment">------------------------------------------------------------------------------</span></div> -<div class="line"><a name="l07169"></a><span class="lineno"> 7169</span> <span class="comment">ALTERNATIVE B - Public Domain (www.unlicense.org)</span></div> -<div class="line"><a name="l07170"></a><span class="lineno"> 7170</span> <span class="comment">This is free and unencumbered software released into the public domain.</span></div> -<div class="line"><a name="l07171"></a><span class="lineno"> 7171</span> <span class="comment">Anyone is free to copy, modify, publish, use, compile, sell, or distribute this</span></div> -<div class="line"><a name="l07172"></a><span class="lineno"> 7172</span> <span class="comment">software, either in source code form or as a compiled binary, for any purpose,</span></div> -<div class="line"><a name="l07173"></a><span class="lineno"> 7173</span> <span class="comment">commercial or non-commercial, and by any means.</span></div> -<div class="line"><a name="l07174"></a><span class="lineno"> 7174</span> <span class="comment">In jurisdictions that recognize copyright laws, the author or authors of this</span></div> -<div class="line"><a name="l07175"></a><span class="lineno"> 7175</span> <span class="comment">software dedicate any and all copyright interest in the software to the public</span></div> -<div class="line"><a name="l07176"></a><span class="lineno"> 7176</span> <span class="comment">domain. We make this dedication for the benefit of the public at large and to</span></div> -<div class="line"><a name="l07177"></a><span class="lineno"> 7177</span> <span class="comment">the detriment of our heirs and successors. We intend this dedication to be an</span></div> -<div class="line"><a name="l07178"></a><span class="lineno"> 7178</span> <span class="comment">overt act of relinquishment in perpetuity of all present and future rights to</span></div> -<div class="line"><a name="l07179"></a><span class="lineno"> 7179</span> <span class="comment">this software under copyright law.</span></div> -<div class="line"><a name="l07180"></a><span class="lineno"> 7180</span> <span class="comment">THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div> -<div class="line"><a name="l07181"></a><span class="lineno"> 7181</span> <span class="comment">IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div> -<div class="line"><a name="l07182"></a><span class="lineno"> 7182</span> <span class="comment">FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div> -<div class="line"><a name="l07183"></a><span class="lineno"> 7183</span> <span class="comment">AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span></div> -<div class="line"><a name="l07184"></a><span class="lineno"> 7184</span> <span class="comment">ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION</span></div> -<div class="line"><a name="l07185"></a><span class="lineno"> 7185</span> <span class="comment">WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span></div> -<div class="line"><a name="l07186"></a><span class="lineno"> 7186</span> <span class="comment">------------------------------------------------------------------------------</span></div> -<div class="line"><a name="l07187"></a><span class="lineno"> 7187</span> <span class="comment">*/</span></div> +<div class="line"><a name="l07147"></a><span class="lineno"> 7147</span>  stbi__out_gif_code(g, (stbi__uint16)code);</div> +<div class="line"><a name="l07148"></a><span class="lineno"> 7148</span> </div> +<div class="line"><a name="l07149"></a><span class="lineno"> 7149</span>  <span class="keywordflow">if</span> ((avail & codemask) == 0 && avail <= 0x0FFF) {</div> +<div class="line"><a name="l07150"></a><span class="lineno"> 7150</span>  codesize++;</div> +<div class="line"><a name="l07151"></a><span class="lineno"> 7151</span>  codemask = (1 << codesize) - 1;</div> +<div class="line"><a name="l07152"></a><span class="lineno"> 7152</span>  }</div> +<div class="line"><a name="l07153"></a><span class="lineno"> 7153</span> </div> +<div class="line"><a name="l07154"></a><span class="lineno"> 7154</span>  oldcode = code;</div> +<div class="line"><a name="l07155"></a><span class="lineno"> 7155</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07156"></a><span class="lineno"> 7156</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"illegal code in raster"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07157"></a><span class="lineno"> 7157</span>  }</div> +<div class="line"><a name="l07158"></a><span class="lineno"> 7158</span>  }</div> +<div class="line"><a name="l07159"></a><span class="lineno"> 7159</span>  }</div> +<div class="line"><a name="l07160"></a><span class="lineno"> 7160</span> }</div> +<div class="line"><a name="l07161"></a><span class="lineno"> 7161</span> </div> +<div class="line"><a name="l07162"></a><span class="lineno"> 7162</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__fill_gif_background(stbi__gif *g, <span class="keywordtype">int</span> x0, <span class="keywordtype">int</span> y0, <span class="keywordtype">int</span> x1,</div> +<div class="line"><a name="l07163"></a><span class="lineno"> 7163</span>  <span class="keywordtype">int</span> y1)</div> +<div class="line"><a name="l07164"></a><span class="lineno"> 7164</span> {</div> +<div class="line"><a name="l07165"></a><span class="lineno"> 7165</span>  <span class="keywordtype">int</span> x, y;</div> +<div class="line"><a name="l07166"></a><span class="lineno"> 7166</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *c = g->pal[g->bgindex];</div> +<div class="line"><a name="l07167"></a><span class="lineno"> 7167</span>  <span class="keywordflow">for</span> (y = y0; y < y1; y += 4 * g->w) {</div> +<div class="line"><a name="l07168"></a><span class="lineno"> 7168</span>  <span class="keywordflow">for</span> (x = x0; x < x1; x += 4) {</div> +<div class="line"><a name="l07169"></a><span class="lineno"> 7169</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *p = &g->out[y + x];</div> +<div class="line"><a name="l07170"></a><span class="lineno"> 7170</span>  p[0] = c[2];</div> +<div class="line"><a name="l07171"></a><span class="lineno"> 7171</span>  p[1] = c[1];</div> +<div class="line"><a name="l07172"></a><span class="lineno"> 7172</span>  p[2] = c[0];</div> +<div class="line"><a name="l07173"></a><span class="lineno"> 7173</span>  p[3] = 0;</div> +<div class="line"><a name="l07174"></a><span class="lineno"> 7174</span>  }</div> +<div class="line"><a name="l07175"></a><span class="lineno"> 7175</span>  }</div> +<div class="line"><a name="l07176"></a><span class="lineno"> 7176</span> }</div> +<div class="line"><a name="l07177"></a><span class="lineno"> 7177</span> </div> +<div class="line"><a name="l07178"></a><span class="lineno"> 7178</span> <span class="comment">// this function is designed to support animated gifs, although stb_image</span></div> +<div class="line"><a name="l07179"></a><span class="lineno"> 7179</span> <span class="comment">// doesn't support it</span></div> +<div class="line"><a name="l07180"></a><span class="lineno"> 7180</span> <span class="keyword">static</span> <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *stbi__gif_load_next(stbi__context *s, stbi__gif *g, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l07181"></a><span class="lineno"> 7181</span>  <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l07182"></a><span class="lineno"> 7182</span> {</div> +<div class="line"><a name="l07183"></a><span class="lineno"> 7183</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l07184"></a><span class="lineno"> 7184</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *prev_out = 0;</div> +<div class="line"><a name="l07185"></a><span class="lineno"> 7185</span> </div> +<div class="line"><a name="l07186"></a><span class="lineno"> 7186</span>  <span class="keywordflow">if</span> (g->out == 0 && !stbi__gif_header(s, g, comp, 0))</div> +<div class="line"><a name="l07187"></a><span class="lineno"> 7187</span>  <span class="keywordflow">return</span> 0; <span class="comment">// stbi__g_failure_reason set by stbi__gif_header</span></div> +<div class="line"><a name="l07188"></a><span class="lineno"> 7188</span> </div> +<div class="line"><a name="l07189"></a><span class="lineno"> 7189</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(g->w, g->h, 4, 0))</div> +<div class="line"><a name="l07190"></a><span class="lineno"> 7190</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"GIF too large"</span>);</div> +<div class="line"><a name="l07191"></a><span class="lineno"> 7191</span> </div> +<div class="line"><a name="l07192"></a><span class="lineno"> 7192</span>  prev_out = g->out;</div> +<div class="line"><a name="l07193"></a><span class="lineno"> 7193</span>  g->out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(4, g->w, g->h, 0);</div> +<div class="line"><a name="l07194"></a><span class="lineno"> 7194</span>  <span class="keywordflow">if</span> (g->out == 0)</div> +<div class="line"><a name="l07195"></a><span class="lineno"> 7195</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l07196"></a><span class="lineno"> 7196</span> </div> +<div class="line"><a name="l07197"></a><span class="lineno"> 7197</span>  <span class="keywordflow">switch</span> ((g->eflags & 0x1C) >> 2) {</div> +<div class="line"><a name="l07198"></a><span class="lineno"> 7198</span>  <span class="keywordflow">case</span> 0: <span class="comment">// unspecified (also always used on 1st frame)</span></div> +<div class="line"><a name="l07199"></a><span class="lineno"> 7199</span>  stbi__fill_gif_background(g, 0, 0, 4 * g->w, 4 * g->w * g->h);</div> +<div class="line"><a name="l07200"></a><span class="lineno"> 7200</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07201"></a><span class="lineno"> 7201</span>  <span class="keywordflow">case</span> 1: <span class="comment">// do not dispose</span></div> +<div class="line"><a name="l07202"></a><span class="lineno"> 7202</span>  <span class="keywordflow">if</span> (prev_out)</div> +<div class="line"><a name="l07203"></a><span class="lineno"> 7203</span>  memcpy(g->out, prev_out, 4 * g->w * g->h);</div> +<div class="line"><a name="l07204"></a><span class="lineno"> 7204</span>  g->old_out = prev_out;</div> +<div class="line"><a name="l07205"></a><span class="lineno"> 7205</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07206"></a><span class="lineno"> 7206</span>  <span class="keywordflow">case</span> 2: <span class="comment">// dispose to background</span></div> +<div class="line"><a name="l07207"></a><span class="lineno"> 7207</span>  <span class="keywordflow">if</span> (prev_out)</div> +<div class="line"><a name="l07208"></a><span class="lineno"> 7208</span>  memcpy(g->out, prev_out, 4 * g->w * g->h);</div> +<div class="line"><a name="l07209"></a><span class="lineno"> 7209</span>  stbi__fill_gif_background(g, g->start_x, g->start_y, g->max_x,</div> +<div class="line"><a name="l07210"></a><span class="lineno"> 7210</span>  g->max_y);</div> +<div class="line"><a name="l07211"></a><span class="lineno"> 7211</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07212"></a><span class="lineno"> 7212</span>  <span class="keywordflow">case</span> 3: <span class="comment">// dispose to previous</span></div> +<div class="line"><a name="l07213"></a><span class="lineno"> 7213</span>  <span class="keywordflow">if</span> (g->old_out) {</div> +<div class="line"><a name="l07214"></a><span class="lineno"> 7214</span>  <span class="keywordflow">for</span> (i = g->start_y; i < g->max_y; i += 4 * g->w)</div> +<div class="line"><a name="l07215"></a><span class="lineno"> 7215</span>  memcpy(&g->out[i + g->start_x], &g->old_out[i + g->start_x],</div> +<div class="line"><a name="l07216"></a><span class="lineno"> 7216</span>  g->max_x - g->start_x);</div> +<div class="line"><a name="l07217"></a><span class="lineno"> 7217</span>  }</div> +<div class="line"><a name="l07218"></a><span class="lineno"> 7218</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07219"></a><span class="lineno"> 7219</span>  }</div> +<div class="line"><a name="l07220"></a><span class="lineno"> 7220</span> </div> +<div class="line"><a name="l07221"></a><span class="lineno"> 7221</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l07222"></a><span class="lineno"> 7222</span>  <span class="keywordflow">switch</span> (stbi__get8(s)) {</div> +<div class="line"><a name="l07223"></a><span class="lineno"> 7223</span>  <span class="keywordflow">case</span> 0x2C: <span class="comment">/* Image Descriptor */</span></div> +<div class="line"><a name="l07224"></a><span class="lineno"> 7224</span>  {</div> +<div class="line"><a name="l07225"></a><span class="lineno"> 7225</span>  <span class="keywordtype">int</span> prev_trans = -1;</div> +<div class="line"><a name="l07226"></a><span class="lineno"> 7226</span>  stbi__int32 x, y, w, h;</div> +<div class="line"><a name="l07227"></a><span class="lineno"> 7227</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *o;</div> +<div class="line"><a name="l07228"></a><span class="lineno"> 7228</span> </div> +<div class="line"><a name="l07229"></a><span class="lineno"> 7229</span>  x = stbi__get16le(s);</div> +<div class="line"><a name="l07230"></a><span class="lineno"> 7230</span>  y = stbi__get16le(s);</div> +<div class="line"><a name="l07231"></a><span class="lineno"> 7231</span>  w = stbi__get16le(s);</div> +<div class="line"><a name="l07232"></a><span class="lineno"> 7232</span>  h = stbi__get16le(s);</div> +<div class="line"><a name="l07233"></a><span class="lineno"> 7233</span>  <span class="keywordflow">if</span> (((x + w) > (g->w)) || ((y + h) > (g->h)))</div> +<div class="line"><a name="l07234"></a><span class="lineno"> 7234</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"bad Image Descriptor"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07235"></a><span class="lineno"> 7235</span> </div> +<div class="line"><a name="l07236"></a><span class="lineno"> 7236</span>  g->line_size = g->w * 4;</div> +<div class="line"><a name="l07237"></a><span class="lineno"> 7237</span>  g->start_x = x * 4;</div> +<div class="line"><a name="l07238"></a><span class="lineno"> 7238</span>  g->start_y = y * g->line_size;</div> +<div class="line"><a name="l07239"></a><span class="lineno"> 7239</span>  g->max_x = g->start_x + w * 4;</div> +<div class="line"><a name="l07240"></a><span class="lineno"> 7240</span>  g->max_y = g->start_y + h * g->line_size;</div> +<div class="line"><a name="l07241"></a><span class="lineno"> 7241</span>  g->cur_x = g->start_x;</div> +<div class="line"><a name="l07242"></a><span class="lineno"> 7242</span>  g->cur_y = g->start_y;</div> +<div class="line"><a name="l07243"></a><span class="lineno"> 7243</span> </div> +<div class="line"><a name="l07244"></a><span class="lineno"> 7244</span>  g->lflags = stbi__get8(s);</div> +<div class="line"><a name="l07245"></a><span class="lineno"> 7245</span> </div> +<div class="line"><a name="l07246"></a><span class="lineno"> 7246</span>  <span class="keywordflow">if</span> (g->lflags & 0x40) {</div> +<div class="line"><a name="l07247"></a><span class="lineno"> 7247</span>  g->step = 8 * g->line_size; <span class="comment">// first interlaced spacing</span></div> +<div class="line"><a name="l07248"></a><span class="lineno"> 7248</span>  g->parse = 3;</div> +<div class="line"><a name="l07249"></a><span class="lineno"> 7249</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07250"></a><span class="lineno"> 7250</span>  g->step = g->line_size;</div> +<div class="line"><a name="l07251"></a><span class="lineno"> 7251</span>  g->parse = 0;</div> +<div class="line"><a name="l07252"></a><span class="lineno"> 7252</span>  }</div> +<div class="line"><a name="l07253"></a><span class="lineno"> 7253</span> </div> +<div class="line"><a name="l07254"></a><span class="lineno"> 7254</span>  <span class="keywordflow">if</span> (g->lflags & 0x80) {</div> +<div class="line"><a name="l07255"></a><span class="lineno"> 7255</span>  stbi__gif_parse_colortable(s, g->lpal, 2 << (g->lflags & 7),</div> +<div class="line"><a name="l07256"></a><span class="lineno"> 7256</span>  g->eflags & 0x01 ? g->transparent</div> +<div class="line"><a name="l07257"></a><span class="lineno"> 7257</span>  : -1);</div> +<div class="line"><a name="l07258"></a><span class="lineno"> 7258</span>  g->color_table = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)g->lpal;</div> +<div class="line"><a name="l07259"></a><span class="lineno"> 7259</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (g->flags & 0x80) {</div> +<div class="line"><a name="l07260"></a><span class="lineno"> 7260</span>  <span class="keywordflow">if</span> (g->transparent >= 0 && (g->eflags & 0x01)) {</div> +<div class="line"><a name="l07261"></a><span class="lineno"> 7261</span>  prev_trans = g->pal[g->transparent][3];</div> +<div class="line"><a name="l07262"></a><span class="lineno"> 7262</span>  g->pal[g->transparent][3] = 0;</div> +<div class="line"><a name="l07263"></a><span class="lineno"> 7263</span>  }</div> +<div class="line"><a name="l07264"></a><span class="lineno"> 7264</span>  g->color_table = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)g->pal;</div> +<div class="line"><a name="l07265"></a><span class="lineno"> 7265</span>  } <span class="keywordflow">else</span></div> +<div class="line"><a name="l07266"></a><span class="lineno"> 7266</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"missing color table"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07267"></a><span class="lineno"> 7267</span> </div> +<div class="line"><a name="l07268"></a><span class="lineno"> 7268</span>  o = stbi__process_gif_raster(s, g);</div> +<div class="line"><a name="l07269"></a><span class="lineno"> 7269</span>  <span class="keywordflow">if</span> (o == NULL)</div> +<div class="line"><a name="l07270"></a><span class="lineno"> 7270</span>  <span class="keywordflow">return</span> NULL;</div> +<div class="line"><a name="l07271"></a><span class="lineno"> 7271</span> </div> +<div class="line"><a name="l07272"></a><span class="lineno"> 7272</span>  <span class="keywordflow">if</span> (prev_trans != -1)</div> +<div class="line"><a name="l07273"></a><span class="lineno"> 7273</span>  g->pal[g->transparent][3] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)prev_trans;</div> +<div class="line"><a name="l07274"></a><span class="lineno"> 7274</span> </div> +<div class="line"><a name="l07275"></a><span class="lineno"> 7275</span>  <span class="keywordflow">return</span> o;</div> +<div class="line"><a name="l07276"></a><span class="lineno"> 7276</span>  }</div> +<div class="line"><a name="l07277"></a><span class="lineno"> 7277</span> </div> +<div class="line"><a name="l07278"></a><span class="lineno"> 7278</span>  <span class="keywordflow">case</span> 0x21: <span class="comment">// Comment Extension.</span></div> +<div class="line"><a name="l07279"></a><span class="lineno"> 7279</span>  {</div> +<div class="line"><a name="l07280"></a><span class="lineno"> 7280</span>  <span class="keywordtype">int</span> len;</div> +<div class="line"><a name="l07281"></a><span class="lineno"> 7281</span>  <span class="keywordflow">if</span> (stbi__get8(s) == 0xF9) { <span class="comment">// Graphic Control Extension.</span></div> +<div class="line"><a name="l07282"></a><span class="lineno"> 7282</span>  len = stbi__get8(s);</div> +<div class="line"><a name="l07283"></a><span class="lineno"> 7283</span>  <span class="keywordflow">if</span> (len == 4) {</div> +<div class="line"><a name="l07284"></a><span class="lineno"> 7284</span>  g->eflags = stbi__get8(s);</div> +<div class="line"><a name="l07285"></a><span class="lineno"> 7285</span>  g->delay = stbi__get16le(s);</div> +<div class="line"><a name="l07286"></a><span class="lineno"> 7286</span>  g->transparent = stbi__get8(s);</div> +<div class="line"><a name="l07287"></a><span class="lineno"> 7287</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07288"></a><span class="lineno"> 7288</span>  stbi__skip(s, len);</div> +<div class="line"><a name="l07289"></a><span class="lineno"> 7289</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07290"></a><span class="lineno"> 7290</span>  }</div> +<div class="line"><a name="l07291"></a><span class="lineno"> 7291</span>  }</div> +<div class="line"><a name="l07292"></a><span class="lineno"> 7292</span>  <span class="keywordflow">while</span> ((len = stbi__get8(s)) != 0)</div> +<div class="line"><a name="l07293"></a><span class="lineno"> 7293</span>  stbi__skip(s, len);</div> +<div class="line"><a name="l07294"></a><span class="lineno"> 7294</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07295"></a><span class="lineno"> 7295</span>  }</div> +<div class="line"><a name="l07296"></a><span class="lineno"> 7296</span> </div> +<div class="line"><a name="l07297"></a><span class="lineno"> 7297</span>  <span class="keywordflow">case</span> 0x3B: <span class="comment">// gif stream termination code</span></div> +<div class="line"><a name="l07298"></a><span class="lineno"> 7298</span>  <span class="keywordflow">return</span> (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)s; <span class="comment">// using '1' causes warning on some compilers</span></div> +<div class="line"><a name="l07299"></a><span class="lineno"> 7299</span> </div> +<div class="line"><a name="l07300"></a><span class="lineno"> 7300</span>  <span class="keywordflow">default</span>:</div> +<div class="line"><a name="l07301"></a><span class="lineno"> 7301</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"unknown code"</span>, <span class="stringliteral">"Corrupt GIF"</span>);</div> +<div class="line"><a name="l07302"></a><span class="lineno"> 7302</span>  }</div> +<div class="line"><a name="l07303"></a><span class="lineno"> 7303</span>  }</div> +<div class="line"><a name="l07304"></a><span class="lineno"> 7304</span> </div> +<div class="line"><a name="l07305"></a><span class="lineno"> 7305</span>  STBI_NOTUSED(req_comp);</div> +<div class="line"><a name="l07306"></a><span class="lineno"> 7306</span> }</div> +<div class="line"><a name="l07307"></a><span class="lineno"> 7307</span> </div> +<div class="line"><a name="l07308"></a><span class="lineno"> 7308</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__gif_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l07309"></a><span class="lineno"> 7309</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l07310"></a><span class="lineno"> 7310</span> {</div> +<div class="line"><a name="l07311"></a><span class="lineno"> 7311</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *u = 0;</div> +<div class="line"><a name="l07312"></a><span class="lineno"> 7312</span>  stbi__gif *g = (stbi__gif *)stbi__malloc(<span class="keyword">sizeof</span>(stbi__gif));</div> +<div class="line"><a name="l07313"></a><span class="lineno"> 7313</span>  memset(g, 0, <span class="keyword">sizeof</span>(*g));</div> +<div class="line"><a name="l07314"></a><span class="lineno"> 7314</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l07315"></a><span class="lineno"> 7315</span> </div> +<div class="line"><a name="l07316"></a><span class="lineno"> 7316</span>  u = stbi__gif_load_next(s, g, comp, req_comp);</div> +<div class="line"><a name="l07317"></a><span class="lineno"> 7317</span>  <span class="keywordflow">if</span> (u == (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)s)</div> +<div class="line"><a name="l07318"></a><span class="lineno"> 7318</span>  u = 0; <span class="comment">// end of animated gif marker</span></div> +<div class="line"><a name="l07319"></a><span class="lineno"> 7319</span>  <span class="keywordflow">if</span> (u) {</div> +<div class="line"><a name="l07320"></a><span class="lineno"> 7320</span>  *x = g->w;</div> +<div class="line"><a name="l07321"></a><span class="lineno"> 7321</span>  *y = g->h;</div> +<div class="line"><a name="l07322"></a><span class="lineno"> 7322</span>  <span class="keywordflow">if</span> (req_comp && req_comp != 4)</div> +<div class="line"><a name="l07323"></a><span class="lineno"> 7323</span>  u = stbi__convert_format(u, 4, req_comp, g->w, g->h);</div> +<div class="line"><a name="l07324"></a><span class="lineno"> 7324</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (g->out)</div> +<div class="line"><a name="l07325"></a><span class="lineno"> 7325</span>  STBI_FREE(g->out);</div> +<div class="line"><a name="l07326"></a><span class="lineno"> 7326</span>  STBI_FREE(g);</div> +<div class="line"><a name="l07327"></a><span class="lineno"> 7327</span>  <span class="keywordflow">return</span> u;</div> +<div class="line"><a name="l07328"></a><span class="lineno"> 7328</span> }</div> +<div class="line"><a name="l07329"></a><span class="lineno"> 7329</span> </div> +<div class="line"><a name="l07330"></a><span class="lineno"> 7330</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__gif_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07331"></a><span class="lineno"> 7331</span> {</div> +<div class="line"><a name="l07332"></a><span class="lineno"> 7332</span>  <span class="keywordflow">return</span> stbi__gif_info_raw(s, x, y, comp);</div> +<div class="line"><a name="l07333"></a><span class="lineno"> 7333</span> }</div> +<div class="line"><a name="l07334"></a><span class="lineno"> 7334</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07335"></a><span class="lineno"> 7335</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07336"></a><span class="lineno"> 7336</span> <span class="comment">// *************************************************************************************************</span></div> +<div class="line"><a name="l07337"></a><span class="lineno"> 7337</span> <span class="comment">// Radiance RGBE HDR loader</span></div> +<div class="line"><a name="l07338"></a><span class="lineno"> 7338</span> <span class="comment">// originally by Nicolas Schulz</span></div> +<div class="line"><a name="l07339"></a><span class="lineno"> 7339</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l07340"></a><span class="lineno"> 7340</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_test_core(stbi__context *s, <span class="keyword">const</span> <span class="keywordtype">char</span> *signature)</div> +<div class="line"><a name="l07341"></a><span class="lineno"> 7341</span> {</div> +<div class="line"><a name="l07342"></a><span class="lineno"> 7342</span>  <span class="keywordtype">int</span> i;</div> +<div class="line"><a name="l07343"></a><span class="lineno"> 7343</span>  <span class="keywordflow">for</span> (i = 0; signature[i]; ++i)</div> +<div class="line"><a name="l07344"></a><span class="lineno"> 7344</span>  <span class="keywordflow">if</span> (stbi__get8(s) != signature[i])</div> +<div class="line"><a name="l07345"></a><span class="lineno"> 7345</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07346"></a><span class="lineno"> 7346</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07347"></a><span class="lineno"> 7347</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07348"></a><span class="lineno"> 7348</span> }</div> +<div class="line"><a name="l07349"></a><span class="lineno"> 7349</span> </div> +<div class="line"><a name="l07350"></a><span class="lineno"> 7350</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_test(stbi__context *s)</div> +<div class="line"><a name="l07351"></a><span class="lineno"> 7351</span> {</div> +<div class="line"><a name="l07352"></a><span class="lineno"> 7352</span>  <span class="keywordtype">int</span> r = stbi__hdr_test_core(s, <span class="stringliteral">"#?RADIANCE\n"</span>);</div> +<div class="line"><a name="l07353"></a><span class="lineno"> 7353</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07354"></a><span class="lineno"> 7354</span>  <span class="keywordflow">if</span> (!r) {</div> +<div class="line"><a name="l07355"></a><span class="lineno"> 7355</span>  r = stbi__hdr_test_core(s, <span class="stringliteral">"#?RGBE\n"</span>);</div> +<div class="line"><a name="l07356"></a><span class="lineno"> 7356</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07357"></a><span class="lineno"> 7357</span>  }</div> +<div class="line"><a name="l07358"></a><span class="lineno"> 7358</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l07359"></a><span class="lineno"> 7359</span> }</div> +<div class="line"><a name="l07360"></a><span class="lineno"> 7360</span> </div> +<div class="line"><a name="l07361"></a><span class="lineno"> 7361</span> <span class="preprocessor">#define STBI__HDR_BUFLEN 1024</span></div> +<div class="line"><a name="l07362"></a><span class="lineno"> 7362</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">char</span> *stbi__hdr_gettoken(stbi__context *z, <span class="keywordtype">char</span> *buffer)</div> +<div class="line"><a name="l07363"></a><span class="lineno"> 7363</span> {</div> +<div class="line"><a name="l07364"></a><span class="lineno"> 7364</span>  <span class="keywordtype">int</span> len = 0;</div> +<div class="line"><a name="l07365"></a><span class="lineno"> 7365</span>  <span class="keywordtype">char</span> c = <span class="charliteral">'\0'</span>;</div> +<div class="line"><a name="l07366"></a><span class="lineno"> 7366</span> </div> +<div class="line"><a name="l07367"></a><span class="lineno"> 7367</span>  c = (char)stbi__get8(z);</div> +<div class="line"><a name="l07368"></a><span class="lineno"> 7368</span> </div> +<div class="line"><a name="l07369"></a><span class="lineno"> 7369</span>  <span class="keywordflow">while</span> (!stbi__at_eof(z) && c != <span class="charliteral">'\n'</span>) {</div> +<div class="line"><a name="l07370"></a><span class="lineno"> 7370</span>  buffer[len++] = c;</div> +<div class="line"><a name="l07371"></a><span class="lineno"> 7371</span>  <span class="keywordflow">if</span> (len == STBI__HDR_BUFLEN - 1) {</div> +<div class="line"><a name="l07372"></a><span class="lineno"> 7372</span>  <span class="comment">// flush to end of line</span></div> +<div class="line"><a name="l07373"></a><span class="lineno"> 7373</span>  <span class="keywordflow">while</span> (!stbi__at_eof(z) && stbi__get8(z) != <span class="charliteral">'\n'</span>)</div> +<div class="line"><a name="l07374"></a><span class="lineno"> 7374</span>  ;</div> +<div class="line"><a name="l07375"></a><span class="lineno"> 7375</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07376"></a><span class="lineno"> 7376</span>  }</div> +<div class="line"><a name="l07377"></a><span class="lineno"> 7377</span>  c = (char)stbi__get8(z);</div> +<div class="line"><a name="l07378"></a><span class="lineno"> 7378</span>  }</div> +<div class="line"><a name="l07379"></a><span class="lineno"> 7379</span> </div> +<div class="line"><a name="l07380"></a><span class="lineno"> 7380</span>  buffer[len] = 0;</div> +<div class="line"><a name="l07381"></a><span class="lineno"> 7381</span>  <span class="keywordflow">return</span> buffer;</div> +<div class="line"><a name="l07382"></a><span class="lineno"> 7382</span> }</div> +<div class="line"><a name="l07383"></a><span class="lineno"> 7383</span> </div> +<div class="line"><a name="l07384"></a><span class="lineno"> 7384</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__hdr_convert(<span class="keywordtype">float</span> *output, <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *input, <span class="keywordtype">int</span> req_comp)</div> +<div class="line"><a name="l07385"></a><span class="lineno"> 7385</span> {</div> +<div class="line"><a name="l07386"></a><span class="lineno"> 7386</span>  <span class="keywordflow">if</span> (input[3] != 0) {</div> +<div class="line"><a name="l07387"></a><span class="lineno"> 7387</span>  <span class="keywordtype">float</span> f1;</div> +<div class="line"><a name="l07388"></a><span class="lineno"> 7388</span>  <span class="comment">// Exponent</span></div> +<div class="line"><a name="l07389"></a><span class="lineno"> 7389</span>  f1 = (float)ldexp(1.0f, input[3] - (<span class="keywordtype">int</span>)(128 + 8));</div> +<div class="line"><a name="l07390"></a><span class="lineno"> 7390</span>  <span class="keywordflow">if</span> (req_comp <= 2)</div> +<div class="line"><a name="l07391"></a><span class="lineno"> 7391</span>  output[0] = (input[0] + input[1] + input[2]) * f1 / 3;</div> +<div class="line"><a name="l07392"></a><span class="lineno"> 7392</span>  <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07393"></a><span class="lineno"> 7393</span>  output[0] = input[0] * f1;</div> +<div class="line"><a name="l07394"></a><span class="lineno"> 7394</span>  output[1] = input[1] * f1;</div> +<div class="line"><a name="l07395"></a><span class="lineno"> 7395</span>  output[2] = input[2] * f1;</div> +<div class="line"><a name="l07396"></a><span class="lineno"> 7396</span>  }</div> +<div class="line"><a name="l07397"></a><span class="lineno"> 7397</span>  <span class="keywordflow">if</span> (req_comp == 2)</div> +<div class="line"><a name="l07398"></a><span class="lineno"> 7398</span>  output[1] = 1;</div> +<div class="line"><a name="l07399"></a><span class="lineno"> 7399</span>  <span class="keywordflow">if</span> (req_comp == 4)</div> +<div class="line"><a name="l07400"></a><span class="lineno"> 7400</span>  output[3] = 1;</div> +<div class="line"><a name="l07401"></a><span class="lineno"> 7401</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07402"></a><span class="lineno"> 7402</span>  <span class="keywordflow">switch</span> (req_comp) {</div> +<div class="line"><a name="l07403"></a><span class="lineno"> 7403</span>  <span class="keywordflow">case</span> 4:</div> +<div class="line"><a name="l07404"></a><span class="lineno"> 7404</span>  output[3] = 1; <span class="comment">/* fallthrough */</span></div> +<div class="line"><a name="l07405"></a><span class="lineno"> 7405</span>  <span class="keywordflow">case</span> 3:</div> +<div class="line"><a name="l07406"></a><span class="lineno"> 7406</span>  output[0] = output[1] = output[2] = 0;</div> +<div class="line"><a name="l07407"></a><span class="lineno"> 7407</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07408"></a><span class="lineno"> 7408</span>  <span class="keywordflow">case</span> 2:</div> +<div class="line"><a name="l07409"></a><span class="lineno"> 7409</span>  output[1] = 1; <span class="comment">/* fallthrough */</span></div> +<div class="line"><a name="l07410"></a><span class="lineno"> 7410</span>  <span class="keywordflow">case</span> 1:</div> +<div class="line"><a name="l07411"></a><span class="lineno"> 7411</span>  output[0] = 0;</div> +<div class="line"><a name="l07412"></a><span class="lineno"> 7412</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07413"></a><span class="lineno"> 7413</span>  }</div> +<div class="line"><a name="l07414"></a><span class="lineno"> 7414</span>  }</div> +<div class="line"><a name="l07415"></a><span class="lineno"> 7415</span> }</div> +<div class="line"><a name="l07416"></a><span class="lineno"> 7416</span> </div> +<div class="line"><a name="l07417"></a><span class="lineno"> 7417</span> <span class="keyword">static</span> <span class="keywordtype">float</span> *stbi__hdr_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l07418"></a><span class="lineno"> 7418</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l07419"></a><span class="lineno"> 7419</span> {</div> +<div class="line"><a name="l07420"></a><span class="lineno"> 7420</span>  <span class="keywordtype">char</span> buffer[STBI__HDR_BUFLEN];</div> +<div class="line"><a name="l07421"></a><span class="lineno"> 7421</span>  <span class="keywordtype">char</span> *token;</div> +<div class="line"><a name="l07422"></a><span class="lineno"> 7422</span>  <span class="keywordtype">int</span> valid = 0;</div> +<div class="line"><a name="l07423"></a><span class="lineno"> 7423</span>  <span class="keywordtype">int</span> width, height;</div> +<div class="line"><a name="l07424"></a><span class="lineno"> 7424</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *scanline;</div> +<div class="line"><a name="l07425"></a><span class="lineno"> 7425</span>  <span class="keywordtype">float</span> *hdr_data;</div> +<div class="line"><a name="l07426"></a><span class="lineno"> 7426</span>  <span class="keywordtype">int</span> len;</div> +<div class="line"><a name="l07427"></a><span class="lineno"> 7427</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> count, value;</div> +<div class="line"><a name="l07428"></a><span class="lineno"> 7428</span>  <span class="keywordtype">int</span> i, j, k, c1, c2, z;</div> +<div class="line"><a name="l07429"></a><span class="lineno"> 7429</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *headerToken;</div> +<div class="line"><a name="l07430"></a><span class="lineno"> 7430</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l07431"></a><span class="lineno"> 7431</span> </div> +<div class="line"><a name="l07432"></a><span class="lineno"> 7432</span>  <span class="comment">// Check identifier</span></div> +<div class="line"><a name="l07433"></a><span class="lineno"> 7433</span>  headerToken = stbi__hdr_gettoken(s, buffer);</div> +<div class="line"><a name="l07434"></a><span class="lineno"> 7434</span>  <span class="keywordflow">if</span> (strcmp(headerToken, <span class="stringliteral">"#?RADIANCE"</span>) != 0 &&</div> +<div class="line"><a name="l07435"></a><span class="lineno"> 7435</span>  strcmp(headerToken, <span class="stringliteral">"#?RGBE"</span>) != 0)</div> +<div class="line"><a name="l07436"></a><span class="lineno"> 7436</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"not HDR"</span>, <span class="stringliteral">"Corrupt HDR image"</span>);</div> +<div class="line"><a name="l07437"></a><span class="lineno"> 7437</span> </div> +<div class="line"><a name="l07438"></a><span class="lineno"> 7438</span>  <span class="comment">// Parse header</span></div> +<div class="line"><a name="l07439"></a><span class="lineno"> 7439</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l07440"></a><span class="lineno"> 7440</span>  token = stbi__hdr_gettoken(s, buffer);</div> +<div class="line"><a name="l07441"></a><span class="lineno"> 7441</span>  <span class="keywordflow">if</span> (token[0] == 0)</div> +<div class="line"><a name="l07442"></a><span class="lineno"> 7442</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07443"></a><span class="lineno"> 7443</span>  <span class="keywordflow">if</span> (strcmp(token, <span class="stringliteral">"FORMAT=32-bit_rle_rgbe"</span>) == 0)</div> +<div class="line"><a name="l07444"></a><span class="lineno"> 7444</span>  valid = 1;</div> +<div class="line"><a name="l07445"></a><span class="lineno"> 7445</span>  }</div> +<div class="line"><a name="l07446"></a><span class="lineno"> 7446</span> </div> +<div class="line"><a name="l07447"></a><span class="lineno"> 7447</span>  <span class="keywordflow">if</span> (!valid)</div> +<div class="line"><a name="l07448"></a><span class="lineno"> 7448</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unsupported format"</span>, <span class="stringliteral">"Unsupported HDR format"</span>);</div> +<div class="line"><a name="l07449"></a><span class="lineno"> 7449</span> </div> +<div class="line"><a name="l07450"></a><span class="lineno"> 7450</span>  <span class="comment">// Parse width and height</span></div> +<div class="line"><a name="l07451"></a><span class="lineno"> 7451</span>  <span class="comment">// can't use sscanf() if we're not using stdio!</span></div> +<div class="line"><a name="l07452"></a><span class="lineno"> 7452</span>  token = stbi__hdr_gettoken(s, buffer);</div> +<div class="line"><a name="l07453"></a><span class="lineno"> 7453</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"-Y "</span>, 3))</div> +<div class="line"><a name="l07454"></a><span class="lineno"> 7454</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unsupported data layout"</span>, <span class="stringliteral">"Unsupported HDR format"</span>);</div> +<div class="line"><a name="l07455"></a><span class="lineno"> 7455</span>  token += 3;</div> +<div class="line"><a name="l07456"></a><span class="lineno"> 7456</span>  height = (int)strtol(token, &token, 10);</div> +<div class="line"><a name="l07457"></a><span class="lineno"> 7457</span>  <span class="keywordflow">while</span> (*token == <span class="charliteral">' '</span>)</div> +<div class="line"><a name="l07458"></a><span class="lineno"> 7458</span>  ++token;</div> +<div class="line"><a name="l07459"></a><span class="lineno"> 7459</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"+X "</span>, 3))</div> +<div class="line"><a name="l07460"></a><span class="lineno"> 7460</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"unsupported data layout"</span>, <span class="stringliteral">"Unsupported HDR format"</span>);</div> +<div class="line"><a name="l07461"></a><span class="lineno"> 7461</span>  token += 3;</div> +<div class="line"><a name="l07462"></a><span class="lineno"> 7462</span>  width = (int)strtol(token, NULL, 10);</div> +<div class="line"><a name="l07463"></a><span class="lineno"> 7463</span> </div> +<div class="line"><a name="l07464"></a><span class="lineno"> 7464</span>  *x = width;</div> +<div class="line"><a name="l07465"></a><span class="lineno"> 7465</span>  *y = height;</div> +<div class="line"><a name="l07466"></a><span class="lineno"> 7466</span> </div> +<div class="line"><a name="l07467"></a><span class="lineno"> 7467</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l07468"></a><span class="lineno"> 7468</span>  *comp = 3;</div> +<div class="line"><a name="l07469"></a><span class="lineno"> 7469</span>  <span class="keywordflow">if</span> (req_comp == 0)</div> +<div class="line"><a name="l07470"></a><span class="lineno"> 7470</span>  req_comp = 3;</div> +<div class="line"><a name="l07471"></a><span class="lineno"> 7471</span> </div> +<div class="line"><a name="l07472"></a><span class="lineno"> 7472</span>  <span class="keywordflow">if</span> (!stbi__mad4sizes_valid(width, height, req_comp, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), 0))</div> +<div class="line"><a name="l07473"></a><span class="lineno"> 7473</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"HDR image is too large"</span>);</div> +<div class="line"><a name="l07474"></a><span class="lineno"> 7474</span> </div> +<div class="line"><a name="l07475"></a><span class="lineno"> 7475</span>  <span class="comment">// Read data</span></div> +<div class="line"><a name="l07476"></a><span class="lineno"> 7476</span>  hdr_data =</div> +<div class="line"><a name="l07477"></a><span class="lineno"> 7477</span>  (<span class="keywordtype">float</span> *)stbi__malloc_mad4(width, height, req_comp, <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>), 0);</div> +<div class="line"><a name="l07478"></a><span class="lineno"> 7478</span>  <span class="keywordflow">if</span> (!hdr_data)</div> +<div class="line"><a name="l07479"></a><span class="lineno"> 7479</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l07480"></a><span class="lineno"> 7480</span> </div> +<div class="line"><a name="l07481"></a><span class="lineno"> 7481</span>  <span class="comment">// Load image data</span></div> +<div class="line"><a name="l07482"></a><span class="lineno"> 7482</span>  <span class="comment">// image data is stored as some number of sca</span></div> +<div class="line"><a name="l07483"></a><span class="lineno"> 7483</span>  <span class="keywordflow">if</span> (width < 8 || width >= 32768) {</div> +<div class="line"><a name="l07484"></a><span class="lineno"> 7484</span>  <span class="comment">// Read flat data</span></div> +<div class="line"><a name="l07485"></a><span class="lineno"> 7485</span>  <span class="keywordflow">for</span> (j = 0; j < height; ++j) {</div> +<div class="line"><a name="l07486"></a><span class="lineno"> 7486</span>  <span class="keywordflow">for</span> (i = 0; i < width; ++i) {</div> +<div class="line"><a name="l07487"></a><span class="lineno"> 7487</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> rgbe[4];</div> +<div class="line"><a name="l07488"></a><span class="lineno"> 7488</span>  main_decode_loop:</div> +<div class="line"><a name="l07489"></a><span class="lineno"> 7489</span>  stbi__getn(s, rgbe, 4);</div> +<div class="line"><a name="l07490"></a><span class="lineno"> 7490</span>  stbi__hdr_convert(hdr_data + j * width * req_comp +</div> +<div class="line"><a name="l07491"></a><span class="lineno"> 7491</span>  i * req_comp,</div> +<div class="line"><a name="l07492"></a><span class="lineno"> 7492</span>  rgbe, req_comp);</div> +<div class="line"><a name="l07493"></a><span class="lineno"> 7493</span>  }</div> +<div class="line"><a name="l07494"></a><span class="lineno"> 7494</span>  }</div> +<div class="line"><a name="l07495"></a><span class="lineno"> 7495</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07496"></a><span class="lineno"> 7496</span>  <span class="comment">// Read RLE-encoded data</span></div> +<div class="line"><a name="l07497"></a><span class="lineno"> 7497</span>  scanline = NULL;</div> +<div class="line"><a name="l07498"></a><span class="lineno"> 7498</span> </div> +<div class="line"><a name="l07499"></a><span class="lineno"> 7499</span>  <span class="keywordflow">for</span> (j = 0; j < height; ++j) {</div> +<div class="line"><a name="l07500"></a><span class="lineno"> 7500</span>  c1 = stbi__get8(s);</div> +<div class="line"><a name="l07501"></a><span class="lineno"> 7501</span>  c2 = stbi__get8(s);</div> +<div class="line"><a name="l07502"></a><span class="lineno"> 7502</span>  len = stbi__get8(s);</div> +<div class="line"><a name="l07503"></a><span class="lineno"> 7503</span>  <span class="keywordflow">if</span> (c1 != 2 || c2 != 2 || (len & 0x80)) {</div> +<div class="line"><a name="l07504"></a><span class="lineno"> 7504</span>  <span class="comment">// not run-length encoded, so we have to actually use THIS data</span></div> +<div class="line"><a name="l07505"></a><span class="lineno"> 7505</span>  <span class="comment">// as a decoded pixel (note this can't be a valid pixel--one of</span></div> +<div class="line"><a name="l07506"></a><span class="lineno"> 7506</span>  <span class="comment">// RGB must be >= 128)</span></div> +<div class="line"><a name="l07507"></a><span class="lineno"> 7507</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> rgbe[4];</div> +<div class="line"><a name="l07508"></a><span class="lineno"> 7508</span>  rgbe[0] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)c1;</div> +<div class="line"><a name="l07509"></a><span class="lineno"> 7509</span>  rgbe[1] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)c2;</div> +<div class="line"><a name="l07510"></a><span class="lineno"> 7510</span>  rgbe[2] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)len;</div> +<div class="line"><a name="l07511"></a><span class="lineno"> 7511</span>  rgbe[3] = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a>)stbi__get8(s);</div> +<div class="line"><a name="l07512"></a><span class="lineno"> 7512</span>  stbi__hdr_convert(hdr_data, rgbe, req_comp);</div> +<div class="line"><a name="l07513"></a><span class="lineno"> 7513</span>  i = 1;</div> +<div class="line"><a name="l07514"></a><span class="lineno"> 7514</span>  j = 0;</div> +<div class="line"><a name="l07515"></a><span class="lineno"> 7515</span>  STBI_FREE(scanline);</div> +<div class="line"><a name="l07516"></a><span class="lineno"> 7516</span>  <span class="keywordflow">goto</span> main_decode_loop; <span class="comment">// yes, this makes no sense</span></div> +<div class="line"><a name="l07517"></a><span class="lineno"> 7517</span>  }</div> +<div class="line"><a name="l07518"></a><span class="lineno"> 7518</span>  len <<= 8;</div> +<div class="line"><a name="l07519"></a><span class="lineno"> 7519</span>  len |= stbi__get8(s);</div> +<div class="line"><a name="l07520"></a><span class="lineno"> 7520</span>  <span class="keywordflow">if</span> (len != width) {</div> +<div class="line"><a name="l07521"></a><span class="lineno"> 7521</span>  STBI_FREE(hdr_data);</div> +<div class="line"><a name="l07522"></a><span class="lineno"> 7522</span>  STBI_FREE(scanline);</div> +<div class="line"><a name="l07523"></a><span class="lineno"> 7523</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"invalid decoded scanline length"</span>,</div> +<div class="line"><a name="l07524"></a><span class="lineno"> 7524</span>  <span class="stringliteral">"corrupt HDR"</span>);</div> +<div class="line"><a name="l07525"></a><span class="lineno"> 7525</span>  }</div> +<div class="line"><a name="l07526"></a><span class="lineno"> 7526</span>  <span class="keywordflow">if</span> (scanline == NULL) {</div> +<div class="line"><a name="l07527"></a><span class="lineno"> 7527</span>  scanline = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad2(width, 4, 0);</div> +<div class="line"><a name="l07528"></a><span class="lineno"> 7528</span>  <span class="keywordflow">if</span> (!scanline) {</div> +<div class="line"><a name="l07529"></a><span class="lineno"> 7529</span>  STBI_FREE(hdr_data);</div> +<div class="line"><a name="l07530"></a><span class="lineno"> 7530</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l07531"></a><span class="lineno"> 7531</span>  }</div> +<div class="line"><a name="l07532"></a><span class="lineno"> 7532</span>  }</div> +<div class="line"><a name="l07533"></a><span class="lineno"> 7533</span> </div> +<div class="line"><a name="l07534"></a><span class="lineno"> 7534</span>  <span class="keywordflow">for</span> (k = 0; k < 4; ++k) {</div> +<div class="line"><a name="l07535"></a><span class="lineno"> 7535</span>  <span class="keywordtype">int</span> nleft;</div> +<div class="line"><a name="l07536"></a><span class="lineno"> 7536</span>  i = 0;</div> +<div class="line"><a name="l07537"></a><span class="lineno"> 7537</span>  <span class="keywordflow">while</span> ((nleft = width - i) > 0) {</div> +<div class="line"><a name="l07538"></a><span class="lineno"> 7538</span>  count = stbi__get8(s);</div> +<div class="line"><a name="l07539"></a><span class="lineno"> 7539</span>  <span class="keywordflow">if</span> (count > 128) {</div> +<div class="line"><a name="l07540"></a><span class="lineno"> 7540</span>  <span class="comment">// Run</span></div> +<div class="line"><a name="l07541"></a><span class="lineno"> 7541</span>  value = stbi__get8(s);</div> +<div class="line"><a name="l07542"></a><span class="lineno"> 7542</span>  count -= 128;</div> +<div class="line"><a name="l07543"></a><span class="lineno"> 7543</span>  <span class="keywordflow">if</span> (count > nleft) {</div> +<div class="line"><a name="l07544"></a><span class="lineno"> 7544</span>  STBI_FREE(hdr_data);</div> +<div class="line"><a name="l07545"></a><span class="lineno"> 7545</span>  STBI_FREE(scanline);</div> +<div class="line"><a name="l07546"></a><span class="lineno"> 7546</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"corrupt"</span>,</div> +<div class="line"><a name="l07547"></a><span class="lineno"> 7547</span>  <span class="stringliteral">"bad RLE data in HDR"</span>);</div> +<div class="line"><a name="l07548"></a><span class="lineno"> 7548</span>  }</div> +<div class="line"><a name="l07549"></a><span class="lineno"> 7549</span>  <span class="keywordflow">for</span> (z = 0; z < count; ++z)</div> +<div class="line"><a name="l07550"></a><span class="lineno"> 7550</span>  scanline[i++ * 4 + k] = value;</div> +<div class="line"><a name="l07551"></a><span class="lineno"> 7551</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l07552"></a><span class="lineno"> 7552</span>  <span class="comment">// Dump</span></div> +<div class="line"><a name="l07553"></a><span class="lineno"> 7553</span>  <span class="keywordflow">if</span> (count > nleft) {</div> +<div class="line"><a name="l07554"></a><span class="lineno"> 7554</span>  STBI_FREE(hdr_data);</div> +<div class="line"><a name="l07555"></a><span class="lineno"> 7555</span>  STBI_FREE(scanline);</div> +<div class="line"><a name="l07556"></a><span class="lineno"> 7556</span>  <span class="keywordflow">return</span> stbi__errpf(<span class="stringliteral">"corrupt"</span>,</div> +<div class="line"><a name="l07557"></a><span class="lineno"> 7557</span>  <span class="stringliteral">"bad RLE data in HDR"</span>);</div> +<div class="line"><a name="l07558"></a><span class="lineno"> 7558</span>  }</div> +<div class="line"><a name="l07559"></a><span class="lineno"> 7559</span>  <span class="keywordflow">for</span> (z = 0; z < count; ++z)</div> +<div class="line"><a name="l07560"></a><span class="lineno"> 7560</span>  scanline[i++ * 4 + k] = stbi__get8(s);</div> +<div class="line"><a name="l07561"></a><span class="lineno"> 7561</span>  }</div> +<div class="line"><a name="l07562"></a><span class="lineno"> 7562</span>  }</div> +<div class="line"><a name="l07563"></a><span class="lineno"> 7563</span>  }</div> +<div class="line"><a name="l07564"></a><span class="lineno"> 7564</span>  <span class="keywordflow">for</span> (i = 0; i < width; ++i)</div> +<div class="line"><a name="l07565"></a><span class="lineno"> 7565</span>  stbi__hdr_convert(hdr_data + (j * width + i) * req_comp,</div> +<div class="line"><a name="l07566"></a><span class="lineno"> 7566</span>  scanline + i * 4, req_comp);</div> +<div class="line"><a name="l07567"></a><span class="lineno"> 7567</span>  }</div> +<div class="line"><a name="l07568"></a><span class="lineno"> 7568</span>  <span class="keywordflow">if</span> (scanline)</div> +<div class="line"><a name="l07569"></a><span class="lineno"> 7569</span>  STBI_FREE(scanline);</div> +<div class="line"><a name="l07570"></a><span class="lineno"> 7570</span>  }</div> +<div class="line"><a name="l07571"></a><span class="lineno"> 7571</span> </div> +<div class="line"><a name="l07572"></a><span class="lineno"> 7572</span>  <span class="keywordflow">return</span> hdr_data;</div> +<div class="line"><a name="l07573"></a><span class="lineno"> 7573</span> }</div> +<div class="line"><a name="l07574"></a><span class="lineno"> 7574</span> </div> +<div class="line"><a name="l07575"></a><span class="lineno"> 7575</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__hdr_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07576"></a><span class="lineno"> 7576</span> {</div> +<div class="line"><a name="l07577"></a><span class="lineno"> 7577</span>  <span class="keywordtype">char</span> buffer[STBI__HDR_BUFLEN];</div> +<div class="line"><a name="l07578"></a><span class="lineno"> 7578</span>  <span class="keywordtype">char</span> *token;</div> +<div class="line"><a name="l07579"></a><span class="lineno"> 7579</span>  <span class="keywordtype">int</span> valid = 0;</div> +<div class="line"><a name="l07580"></a><span class="lineno"> 7580</span>  <span class="keywordtype">int</span> dummy;</div> +<div class="line"><a name="l07581"></a><span class="lineno"> 7581</span> </div> +<div class="line"><a name="l07582"></a><span class="lineno"> 7582</span>  <span class="keywordflow">if</span> (!x)</div> +<div class="line"><a name="l07583"></a><span class="lineno"> 7583</span>  x = &dummy;</div> +<div class="line"><a name="l07584"></a><span class="lineno"> 7584</span>  <span class="keywordflow">if</span> (!y)</div> +<div class="line"><a name="l07585"></a><span class="lineno"> 7585</span>  y = &dummy;</div> +<div class="line"><a name="l07586"></a><span class="lineno"> 7586</span>  <span class="keywordflow">if</span> (!comp)</div> +<div class="line"><a name="l07587"></a><span class="lineno"> 7587</span>  comp = &dummy;</div> +<div class="line"><a name="l07588"></a><span class="lineno"> 7588</span> </div> +<div class="line"><a name="l07589"></a><span class="lineno"> 7589</span>  <span class="keywordflow">if</span> (stbi__hdr_test(s) == 0) {</div> +<div class="line"><a name="l07590"></a><span class="lineno"> 7590</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07591"></a><span class="lineno"> 7591</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07592"></a><span class="lineno"> 7592</span>  }</div> +<div class="line"><a name="l07593"></a><span class="lineno"> 7593</span> </div> +<div class="line"><a name="l07594"></a><span class="lineno"> 7594</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l07595"></a><span class="lineno"> 7595</span>  token = stbi__hdr_gettoken(s, buffer);</div> +<div class="line"><a name="l07596"></a><span class="lineno"> 7596</span>  <span class="keywordflow">if</span> (token[0] == 0)</div> +<div class="line"><a name="l07597"></a><span class="lineno"> 7597</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07598"></a><span class="lineno"> 7598</span>  <span class="keywordflow">if</span> (strcmp(token, <span class="stringliteral">"FORMAT=32-bit_rle_rgbe"</span>) == 0)</div> +<div class="line"><a name="l07599"></a><span class="lineno"> 7599</span>  valid = 1;</div> +<div class="line"><a name="l07600"></a><span class="lineno"> 7600</span>  }</div> +<div class="line"><a name="l07601"></a><span class="lineno"> 7601</span> </div> +<div class="line"><a name="l07602"></a><span class="lineno"> 7602</span>  <span class="keywordflow">if</span> (!valid) {</div> +<div class="line"><a name="l07603"></a><span class="lineno"> 7603</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07604"></a><span class="lineno"> 7604</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07605"></a><span class="lineno"> 7605</span>  }</div> +<div class="line"><a name="l07606"></a><span class="lineno"> 7606</span>  token = stbi__hdr_gettoken(s, buffer);</div> +<div class="line"><a name="l07607"></a><span class="lineno"> 7607</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"-Y "</span>, 3)) {</div> +<div class="line"><a name="l07608"></a><span class="lineno"> 7608</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07609"></a><span class="lineno"> 7609</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07610"></a><span class="lineno"> 7610</span>  }</div> +<div class="line"><a name="l07611"></a><span class="lineno"> 7611</span>  token += 3;</div> +<div class="line"><a name="l07612"></a><span class="lineno"> 7612</span>  *y = (int)strtol(token, &token, 10);</div> +<div class="line"><a name="l07613"></a><span class="lineno"> 7613</span>  <span class="keywordflow">while</span> (*token == <span class="charliteral">' '</span>)</div> +<div class="line"><a name="l07614"></a><span class="lineno"> 7614</span>  ++token;</div> +<div class="line"><a name="l07615"></a><span class="lineno"> 7615</span>  <span class="keywordflow">if</span> (strncmp(token, <span class="stringliteral">"+X "</span>, 3)) {</div> +<div class="line"><a name="l07616"></a><span class="lineno"> 7616</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07617"></a><span class="lineno"> 7617</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07618"></a><span class="lineno"> 7618</span>  }</div> +<div class="line"><a name="l07619"></a><span class="lineno"> 7619</span>  token += 3;</div> +<div class="line"><a name="l07620"></a><span class="lineno"> 7620</span>  *x = (int)strtol(token, NULL, 10);</div> +<div class="line"><a name="l07621"></a><span class="lineno"> 7621</span>  *comp = 3;</div> +<div class="line"><a name="l07622"></a><span class="lineno"> 7622</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07623"></a><span class="lineno"> 7623</span> }</div> +<div class="line"><a name="l07624"></a><span class="lineno"> 7624</span> <span class="preprocessor">#endif // STBI_NO_HDR</span></div> +<div class="line"><a name="l07625"></a><span class="lineno"> 7625</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07626"></a><span class="lineno"> 7626</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> +<div class="line"><a name="l07627"></a><span class="lineno"> 7627</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__bmp_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07628"></a><span class="lineno"> 7628</span> {</div> +<div class="line"><a name="l07629"></a><span class="lineno"> 7629</span>  <span class="keywordtype">void</span> *p;</div> +<div class="line"><a name="l07630"></a><span class="lineno"> 7630</span>  stbi__bmp_data info;</div> +<div class="line"><a name="l07631"></a><span class="lineno"> 7631</span> </div> +<div class="line"><a name="l07632"></a><span class="lineno"> 7632</span>  info.all_a = 255;</div> +<div class="line"><a name="l07633"></a><span class="lineno"> 7633</span>  p = stbi__bmp_parse_header(s, &info);</div> +<div class="line"><a name="l07634"></a><span class="lineno"> 7634</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07635"></a><span class="lineno"> 7635</span>  <span class="keywordflow">if</span> (p == NULL)</div> +<div class="line"><a name="l07636"></a><span class="lineno"> 7636</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07637"></a><span class="lineno"> 7637</span>  <span class="keywordflow">if</span> (x)</div> +<div class="line"><a name="l07638"></a><span class="lineno"> 7638</span>  *x = s->img_x;</div> +<div class="line"><a name="l07639"></a><span class="lineno"> 7639</span>  <span class="keywordflow">if</span> (y)</div> +<div class="line"><a name="l07640"></a><span class="lineno"> 7640</span>  *y = s->img_y;</div> +<div class="line"><a name="l07641"></a><span class="lineno"> 7641</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l07642"></a><span class="lineno"> 7642</span>  *comp = info.ma ? 4 : 3;</div> +<div class="line"><a name="l07643"></a><span class="lineno"> 7643</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07644"></a><span class="lineno"> 7644</span> }</div> +<div class="line"><a name="l07645"></a><span class="lineno"> 7645</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07646"></a><span class="lineno"> 7646</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07647"></a><span class="lineno"> 7647</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> +<div class="line"><a name="l07648"></a><span class="lineno"> 7648</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__psd_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07649"></a><span class="lineno"> 7649</span> {</div> +<div class="line"><a name="l07650"></a><span class="lineno"> 7650</span>  <span class="keywordtype">int</span> channelCount, dummy;</div> +<div class="line"><a name="l07651"></a><span class="lineno"> 7651</span>  <span class="keywordflow">if</span> (!x)</div> +<div class="line"><a name="l07652"></a><span class="lineno"> 7652</span>  x = &dummy;</div> +<div class="line"><a name="l07653"></a><span class="lineno"> 7653</span>  <span class="keywordflow">if</span> (!y)</div> +<div class="line"><a name="l07654"></a><span class="lineno"> 7654</span>  y = &dummy;</div> +<div class="line"><a name="l07655"></a><span class="lineno"> 7655</span>  <span class="keywordflow">if</span> (!comp)</div> +<div class="line"><a name="l07656"></a><span class="lineno"> 7656</span>  comp = &dummy;</div> +<div class="line"><a name="l07657"></a><span class="lineno"> 7657</span>  <span class="keywordflow">if</span> (stbi__get32be(s) != 0x38425053) {</div> +<div class="line"><a name="l07658"></a><span class="lineno"> 7658</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07659"></a><span class="lineno"> 7659</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07660"></a><span class="lineno"> 7660</span>  }</div> +<div class="line"><a name="l07661"></a><span class="lineno"> 7661</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 1) {</div> +<div class="line"><a name="l07662"></a><span class="lineno"> 7662</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07663"></a><span class="lineno"> 7663</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07664"></a><span class="lineno"> 7664</span>  }</div> +<div class="line"><a name="l07665"></a><span class="lineno"> 7665</span>  stbi__skip(s, 6);</div> +<div class="line"><a name="l07666"></a><span class="lineno"> 7666</span>  channelCount = stbi__get16be(s);</div> +<div class="line"><a name="l07667"></a><span class="lineno"> 7667</span>  <span class="keywordflow">if</span> (channelCount < 0 || channelCount > 16) {</div> +<div class="line"><a name="l07668"></a><span class="lineno"> 7668</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07669"></a><span class="lineno"> 7669</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07670"></a><span class="lineno"> 7670</span>  }</div> +<div class="line"><a name="l07671"></a><span class="lineno"> 7671</span>  *y = stbi__get32be(s);</div> +<div class="line"><a name="l07672"></a><span class="lineno"> 7672</span>  *x = stbi__get32be(s);</div> +<div class="line"><a name="l07673"></a><span class="lineno"> 7673</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 8) {</div> +<div class="line"><a name="l07674"></a><span class="lineno"> 7674</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07675"></a><span class="lineno"> 7675</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07676"></a><span class="lineno"> 7676</span>  }</div> +<div class="line"><a name="l07677"></a><span class="lineno"> 7677</span>  <span class="keywordflow">if</span> (stbi__get16be(s) != 3) {</div> +<div class="line"><a name="l07678"></a><span class="lineno"> 7678</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07679"></a><span class="lineno"> 7679</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07680"></a><span class="lineno"> 7680</span>  }</div> +<div class="line"><a name="l07681"></a><span class="lineno"> 7681</span>  *comp = 4;</div> +<div class="line"><a name="l07682"></a><span class="lineno"> 7682</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07683"></a><span class="lineno"> 7683</span> }</div> +<div class="line"><a name="l07684"></a><span class="lineno"> 7684</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07685"></a><span class="lineno"> 7685</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07686"></a><span class="lineno"> 7686</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> +<div class="line"><a name="l07687"></a><span class="lineno"> 7687</span> <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pic_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07688"></a><span class="lineno"> 7688</span> {</div> +<div class="line"><a name="l07689"></a><span class="lineno"> 7689</span>  <span class="keywordtype">int</span> act_comp = 0, num_packets = 0, chained, dummy;</div> +<div class="line"><a name="l07690"></a><span class="lineno"> 7690</span>  stbi__pic_packet packets[10];</div> +<div class="line"><a name="l07691"></a><span class="lineno"> 7691</span> </div> +<div class="line"><a name="l07692"></a><span class="lineno"> 7692</span>  <span class="keywordflow">if</span> (!x)</div> +<div class="line"><a name="l07693"></a><span class="lineno"> 7693</span>  x = &dummy;</div> +<div class="line"><a name="l07694"></a><span class="lineno"> 7694</span>  <span class="keywordflow">if</span> (!y)</div> +<div class="line"><a name="l07695"></a><span class="lineno"> 7695</span>  y = &dummy;</div> +<div class="line"><a name="l07696"></a><span class="lineno"> 7696</span>  <span class="keywordflow">if</span> (!comp)</div> +<div class="line"><a name="l07697"></a><span class="lineno"> 7697</span>  comp = &dummy;</div> +<div class="line"><a name="l07698"></a><span class="lineno"> 7698</span> </div> +<div class="line"><a name="l07699"></a><span class="lineno"> 7699</span>  <span class="keywordflow">if</span> (!stbi__pic_is4(s, <span class="stringliteral">"\x53\x80\xF6\x34"</span>)) {</div> +<div class="line"><a name="l07700"></a><span class="lineno"> 7700</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07701"></a><span class="lineno"> 7701</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07702"></a><span class="lineno"> 7702</span>  }</div> +<div class="line"><a name="l07703"></a><span class="lineno"> 7703</span> </div> +<div class="line"><a name="l07704"></a><span class="lineno"> 7704</span>  stbi__skip(s, 88);</div> +<div class="line"><a name="l07705"></a><span class="lineno"> 7705</span> </div> +<div class="line"><a name="l07706"></a><span class="lineno"> 7706</span>  *x = stbi__get16be(s);</div> +<div class="line"><a name="l07707"></a><span class="lineno"> 7707</span>  *y = stbi__get16be(s);</div> +<div class="line"><a name="l07708"></a><span class="lineno"> 7708</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) {</div> +<div class="line"><a name="l07709"></a><span class="lineno"> 7709</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07710"></a><span class="lineno"> 7710</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07711"></a><span class="lineno"> 7711</span>  }</div> +<div class="line"><a name="l07712"></a><span class="lineno"> 7712</span>  <span class="keywordflow">if</span> ((*x) != 0 && (1 << 28) / (*x) < (*y)) {</div> +<div class="line"><a name="l07713"></a><span class="lineno"> 7713</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07714"></a><span class="lineno"> 7714</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07715"></a><span class="lineno"> 7715</span>  }</div> +<div class="line"><a name="l07716"></a><span class="lineno"> 7716</span> </div> +<div class="line"><a name="l07717"></a><span class="lineno"> 7717</span>  stbi__skip(s, 8);</div> +<div class="line"><a name="l07718"></a><span class="lineno"> 7718</span> </div> +<div class="line"><a name="l07719"></a><span class="lineno"> 7719</span>  <span class="keywordflow">do</span> {</div> +<div class="line"><a name="l07720"></a><span class="lineno"> 7720</span>  stbi__pic_packet *packet;</div> +<div class="line"><a name="l07721"></a><span class="lineno"> 7721</span> </div> +<div class="line"><a name="l07722"></a><span class="lineno"> 7722</span>  <span class="keywordflow">if</span> (num_packets == <span class="keyword">sizeof</span>(packets) / <span class="keyword">sizeof</span>(packets[0]))</div> +<div class="line"><a name="l07723"></a><span class="lineno"> 7723</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07724"></a><span class="lineno"> 7724</span> </div> +<div class="line"><a name="l07725"></a><span class="lineno"> 7725</span>  packet = &packets[num_packets++];</div> +<div class="line"><a name="l07726"></a><span class="lineno"> 7726</span>  chained = stbi__get8(s);</div> +<div class="line"><a name="l07727"></a><span class="lineno"> 7727</span>  packet->size = stbi__get8(s);</div> +<div class="line"><a name="l07728"></a><span class="lineno"> 7728</span>  packet->type = stbi__get8(s);</div> +<div class="line"><a name="l07729"></a><span class="lineno"> 7729</span>  packet->channel = stbi__get8(s);</div> +<div class="line"><a name="l07730"></a><span class="lineno"> 7730</span>  act_comp |= packet->channel;</div> +<div class="line"><a name="l07731"></a><span class="lineno"> 7731</span> </div> +<div class="line"><a name="l07732"></a><span class="lineno"> 7732</span>  <span class="keywordflow">if</span> (stbi__at_eof(s)) {</div> +<div class="line"><a name="l07733"></a><span class="lineno"> 7733</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07734"></a><span class="lineno"> 7734</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07735"></a><span class="lineno"> 7735</span>  }</div> +<div class="line"><a name="l07736"></a><span class="lineno"> 7736</span>  <span class="keywordflow">if</span> (packet->size != 8) {</div> +<div class="line"><a name="l07737"></a><span class="lineno"> 7737</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07738"></a><span class="lineno"> 7738</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07739"></a><span class="lineno"> 7739</span>  }</div> +<div class="line"><a name="l07740"></a><span class="lineno"> 7740</span>  } <span class="keywordflow">while</span> (chained);</div> +<div class="line"><a name="l07741"></a><span class="lineno"> 7741</span> </div> +<div class="line"><a name="l07742"></a><span class="lineno"> 7742</span>  *comp = (act_comp & 0x10 ? 4 : 3);</div> +<div class="line"><a name="l07743"></a><span class="lineno"> 7743</span> </div> +<div class="line"><a name="l07744"></a><span class="lineno"> 7744</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07745"></a><span class="lineno"> 7745</span> }</div> +<div class="line"><a name="l07746"></a><span class="lineno"> 7746</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07747"></a><span class="lineno"> 7747</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07748"></a><span class="lineno"> 7748</span>  <span class="comment">// *************************************************************************************************</span></div> +<div class="line"><a name="l07749"></a><span class="lineno"> 7749</span>  <span class="comment">// Portable Gray Map and Portable Pixel Map loader</span></div> +<div class="line"><a name="l07750"></a><span class="lineno"> 7750</span>  <span class="comment">// by Ken Miller</span></div> +<div class="line"><a name="l07751"></a><span class="lineno"> 7751</span>  <span class="comment">//</span></div> +<div class="line"><a name="l07752"></a><span class="lineno"> 7752</span>  <span class="comment">// PGM: http://netpbm.sourceforge.net/doc/pgm.html</span></div> +<div class="line"><a name="l07753"></a><span class="lineno"> 7753</span>  <span class="comment">// PPM: http://netpbm.sourceforge.net/doc/ppm.html</span></div> +<div class="line"><a name="l07754"></a><span class="lineno"> 7754</span>  <span class="comment">//</span></div> +<div class="line"><a name="l07755"></a><span class="lineno"> 7755</span>  <span class="comment">// Known limitations:</span></div> +<div class="line"><a name="l07756"></a><span class="lineno"> 7756</span>  <span class="comment">// Does not support comments in the header section</span></div> +<div class="line"><a name="l07757"></a><span class="lineno"> 7757</span>  <span class="comment">// Does not support ASCII image data (formats P2 and P3)</span></div> +<div class="line"><a name="l07758"></a><span class="lineno"> 7758</span>  <span class="comment">// Does not support 16-bit-per-channel</span></div> +<div class="line"><a name="l07759"></a><span class="lineno"> 7759</span> </div> +<div class="line"><a name="l07760"></a><span class="lineno"> 7760</span> <span class="preprocessor">#ifndef STBI_NO_PNM</span></div> +<div class="line"><a name="l07761"></a><span class="lineno"> 7761</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07762"></a><span class="lineno"> 7762</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_test(stbi__context *s)</div> +<div class="line"><a name="l07763"></a><span class="lineno"> 7763</span> {</div> +<div class="line"><a name="l07764"></a><span class="lineno"> 7764</span>  <span class="keywordtype">char</span> p, t;</div> +<div class="line"><a name="l07765"></a><span class="lineno"> 7765</span>  p = (char)stbi__get8(s);</div> +<div class="line"><a name="l07766"></a><span class="lineno"> 7766</span>  t = (char)stbi__get8(s);</div> +<div class="line"><a name="l07767"></a><span class="lineno"> 7767</span>  <span class="keywordflow">if</span> (p != <span class="charliteral">'P'</span> || (t != <span class="charliteral">'5'</span> && t != <span class="charliteral">'6'</span>)) {</div> +<div class="line"><a name="l07768"></a><span class="lineno"> 7768</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07769"></a><span class="lineno"> 7769</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07770"></a><span class="lineno"> 7770</span>  }</div> +<div class="line"><a name="l07771"></a><span class="lineno"> 7771</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07772"></a><span class="lineno"> 7772</span> }</div> +<div class="line"><a name="l07773"></a><span class="lineno"> 7773</span> </div> +<div class="line"><a name="l07774"></a><span class="lineno"> 7774</span> <span class="keyword">static</span> <span class="keywordtype">void</span> *stbi__pnm_load(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp,</div> +<div class="line"><a name="l07775"></a><span class="lineno"> 7775</span>  <span class="keywordtype">int</span> req_comp, stbi__result_info *ri)</div> +<div class="line"><a name="l07776"></a><span class="lineno"> 7776</span> {</div> +<div class="line"><a name="l07777"></a><span class="lineno"> 7777</span>  <a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *out;</div> +<div class="line"><a name="l07778"></a><span class="lineno"> 7778</span>  STBI_NOTUSED(ri);</div> +<div class="line"><a name="l07779"></a><span class="lineno"> 7779</span> </div> +<div class="line"><a name="l07780"></a><span class="lineno"> 7780</span>  <span class="keywordflow">if</span> (!stbi__pnm_info(s, (<span class="keywordtype">int</span> *)&s->img_x, (<span class="keywordtype">int</span> *)&s->img_y,</div> +<div class="line"><a name="l07781"></a><span class="lineno"> 7781</span>  (<span class="keywordtype">int</span> *)&s->img_n))</div> +<div class="line"><a name="l07782"></a><span class="lineno"> 7782</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07783"></a><span class="lineno"> 7783</span> </div> +<div class="line"><a name="l07784"></a><span class="lineno"> 7784</span>  *x = s->img_x;</div> +<div class="line"><a name="l07785"></a><span class="lineno"> 7785</span>  *y = s->img_y;</div> +<div class="line"><a name="l07786"></a><span class="lineno"> 7786</span>  <span class="keywordflow">if</span> (comp)</div> +<div class="line"><a name="l07787"></a><span class="lineno"> 7787</span>  *comp = s->img_n;</div> +<div class="line"><a name="l07788"></a><span class="lineno"> 7788</span> </div> +<div class="line"><a name="l07789"></a><span class="lineno"> 7789</span>  <span class="keywordflow">if</span> (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0))</div> +<div class="line"><a name="l07790"></a><span class="lineno"> 7790</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"too large"</span>, <span class="stringliteral">"PNM too large"</span>);</div> +<div class="line"><a name="l07791"></a><span class="lineno"> 7791</span> </div> +<div class="line"><a name="l07792"></a><span class="lineno"> 7792</span>  out = (<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> *)stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0);</div> +<div class="line"><a name="l07793"></a><span class="lineno"> 7793</span>  <span class="keywordflow">if</span> (!out)</div> +<div class="line"><a name="l07794"></a><span class="lineno"> 7794</span>  <span class="keywordflow">return</span> stbi__errpuc(<span class="stringliteral">"outofmem"</span>, <span class="stringliteral">"Out of memory"</span>);</div> +<div class="line"><a name="l07795"></a><span class="lineno"> 7795</span>  stbi__getn(s, out, s->img_n * s->img_x * s->img_y);</div> +<div class="line"><a name="l07796"></a><span class="lineno"> 7796</span> </div> +<div class="line"><a name="l07797"></a><span class="lineno"> 7797</span>  <span class="keywordflow">if</span> (req_comp && req_comp != s->img_n) {</div> +<div class="line"><a name="l07798"></a><span class="lineno"> 7798</span>  out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y);</div> +<div class="line"><a name="l07799"></a><span class="lineno"> 7799</span>  <span class="keywordflow">if</span> (out == NULL)</div> +<div class="line"><a name="l07800"></a><span class="lineno"> 7800</span>  <span class="keywordflow">return</span> out; <span class="comment">// stbi__convert_format frees input on failure</span></div> +<div class="line"><a name="l07801"></a><span class="lineno"> 7801</span>  }</div> +<div class="line"><a name="l07802"></a><span class="lineno"> 7802</span>  <span class="keywordflow">return</span> out;</div> +<div class="line"><a name="l07803"></a><span class="lineno"> 7803</span> }</div> +<div class="line"><a name="l07804"></a><span class="lineno"> 7804</span> </div> +<div class="line"><a name="l07805"></a><span class="lineno"> 7805</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_isspace(<span class="keywordtype">char</span> c)</div> +<div class="line"><a name="l07806"></a><span class="lineno"> 7806</span> {</div> +<div class="line"><a name="l07807"></a><span class="lineno"> 7807</span>  <span class="keywordflow">return</span> c == <span class="charliteral">' '</span> || c == <span class="charliteral">'\t'</span> || c == <span class="charliteral">'\n'</span> || c == <span class="charliteral">'\v'</span> || c == <span class="charliteral">'\f'</span> ||</div> +<div class="line"><a name="l07808"></a><span class="lineno"> 7808</span>  c == <span class="charliteral">'\r'</span>;</div> +<div class="line"><a name="l07809"></a><span class="lineno"> 7809</span> }</div> +<div class="line"><a name="l07810"></a><span class="lineno"> 7810</span> </div> +<div class="line"><a name="l07811"></a><span class="lineno"> 7811</span> <span class="keyword">static</span> <span class="keywordtype">void</span> stbi__pnm_skip_whitespace(stbi__context *s, <span class="keywordtype">char</span> *c)</div> +<div class="line"><a name="l07812"></a><span class="lineno"> 7812</span> {</div> +<div class="line"><a name="l07813"></a><span class="lineno"> 7813</span>  <span class="keywordflow">for</span> (;;) {</div> +<div class="line"><a name="l07814"></a><span class="lineno"> 7814</span>  <span class="keywordflow">while</span> (!stbi__at_eof(s) && stbi__pnm_isspace(*c))</div> +<div class="line"><a name="l07815"></a><span class="lineno"> 7815</span>  *c = (char)stbi__get8(s);</div> +<div class="line"><a name="l07816"></a><span class="lineno"> 7816</span> </div> +<div class="line"><a name="l07817"></a><span class="lineno"> 7817</span>  <span class="keywordflow">if</span> (stbi__at_eof(s) || *c != <span class="charliteral">'#'</span>)</div> +<div class="line"><a name="l07818"></a><span class="lineno"> 7818</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l07819"></a><span class="lineno"> 7819</span> </div> +<div class="line"><a name="l07820"></a><span class="lineno"> 7820</span>  <span class="keywordflow">while</span> (!stbi__at_eof(s) && *c != <span class="charliteral">'\n'</span> && *c != <span class="charliteral">'\r'</span>)</div> +<div class="line"><a name="l07821"></a><span class="lineno"> 7821</span>  *c = (<span class="keywordtype">char</span>)stbi__get8(s);</div> +<div class="line"><a name="l07822"></a><span class="lineno"> 7822</span>  }</div> +<div class="line"><a name="l07823"></a><span class="lineno"> 7823</span> }</div> +<div class="line"><a name="l07824"></a><span class="lineno"> 7824</span> </div> +<div class="line"><a name="l07825"></a><span class="lineno"> 7825</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_isdigit(<span class="keywordtype">char</span> c)</div> +<div class="line"><a name="l07826"></a><span class="lineno"> 7826</span> {</div> +<div class="line"><a name="l07827"></a><span class="lineno"> 7827</span>  <span class="keywordflow">return</span> c >= <span class="charliteral">'0'</span> && c <= <span class="charliteral">'9'</span>;</div> +<div class="line"><a name="l07828"></a><span class="lineno"> 7828</span> }</div> +<div class="line"><a name="l07829"></a><span class="lineno"> 7829</span> </div> +<div class="line"><a name="l07830"></a><span class="lineno"> 7830</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_getinteger(stbi__context *s, <span class="keywordtype">char</span> *c)</div> +<div class="line"><a name="l07831"></a><span class="lineno"> 7831</span> {</div> +<div class="line"><a name="l07832"></a><span class="lineno"> 7832</span>  <span class="keywordtype">int</span> value = 0;</div> +<div class="line"><a name="l07833"></a><span class="lineno"> 7833</span> </div> +<div class="line"><a name="l07834"></a><span class="lineno"> 7834</span>  <span class="keywordflow">while</span> (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) {</div> +<div class="line"><a name="l07835"></a><span class="lineno"> 7835</span>  value = value * 10 + (*c - <span class="charliteral">'0'</span>);</div> +<div class="line"><a name="l07836"></a><span class="lineno"> 7836</span>  *c = (char)stbi__get8(s);</div> +<div class="line"><a name="l07837"></a><span class="lineno"> 7837</span>  }</div> +<div class="line"><a name="l07838"></a><span class="lineno"> 7838</span> </div> +<div class="line"><a name="l07839"></a><span class="lineno"> 7839</span>  <span class="keywordflow">return</span> value;</div> +<div class="line"><a name="l07840"></a><span class="lineno"> 7840</span> }</div> +<div class="line"><a name="l07841"></a><span class="lineno"> 7841</span> </div> +<div class="line"><a name="l07842"></a><span class="lineno"> 7842</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__pnm_info(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07843"></a><span class="lineno"> 7843</span> {</div> +<div class="line"><a name="l07844"></a><span class="lineno"> 7844</span>  <span class="keywordtype">int</span> maxv, dummy;</div> +<div class="line"><a name="l07845"></a><span class="lineno"> 7845</span>  <span class="keywordtype">char</span> c, p, t;</div> +<div class="line"><a name="l07846"></a><span class="lineno"> 7846</span> </div> +<div class="line"><a name="l07847"></a><span class="lineno"> 7847</span>  <span class="keywordflow">if</span> (!x)</div> +<div class="line"><a name="l07848"></a><span class="lineno"> 7848</span>  x = &dummy;</div> +<div class="line"><a name="l07849"></a><span class="lineno"> 7849</span>  <span class="keywordflow">if</span> (!y)</div> +<div class="line"><a name="l07850"></a><span class="lineno"> 7850</span>  y = &dummy;</div> +<div class="line"><a name="l07851"></a><span class="lineno"> 7851</span>  <span class="keywordflow">if</span> (!comp)</div> +<div class="line"><a name="l07852"></a><span class="lineno"> 7852</span>  comp = &dummy;</div> +<div class="line"><a name="l07853"></a><span class="lineno"> 7853</span> </div> +<div class="line"><a name="l07854"></a><span class="lineno"> 7854</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07855"></a><span class="lineno"> 7855</span> </div> +<div class="line"><a name="l07856"></a><span class="lineno"> 7856</span>  <span class="comment">// Get identifier</span></div> +<div class="line"><a name="l07857"></a><span class="lineno"> 7857</span>  p = (char)stbi__get8(s);</div> +<div class="line"><a name="l07858"></a><span class="lineno"> 7858</span>  t = (char)stbi__get8(s);</div> +<div class="line"><a name="l07859"></a><span class="lineno"> 7859</span>  <span class="keywordflow">if</span> (p != <span class="charliteral">'P'</span> || (t != <span class="charliteral">'5'</span> && t != <span class="charliteral">'6'</span>)) {</div> +<div class="line"><a name="l07860"></a><span class="lineno"> 7860</span>  stbi__rewind(s);</div> +<div class="line"><a name="l07861"></a><span class="lineno"> 7861</span>  <span class="keywordflow">return</span> 0;</div> +<div class="line"><a name="l07862"></a><span class="lineno"> 7862</span>  }</div> +<div class="line"><a name="l07863"></a><span class="lineno"> 7863</span> </div> +<div class="line"><a name="l07864"></a><span class="lineno"> 7864</span>  *comp =</div> +<div class="line"><a name="l07865"></a><span class="lineno"> 7865</span>  (t == <span class="charliteral">'6'</span>) ? 3 : 1; <span class="comment">// '5' is 1-component .pgm; '6' is 3-component .ppm</span></div> +<div class="line"><a name="l07866"></a><span class="lineno"> 7866</span> </div> +<div class="line"><a name="l07867"></a><span class="lineno"> 7867</span>  c = (char)stbi__get8(s);</div> +<div class="line"><a name="l07868"></a><span class="lineno"> 7868</span>  stbi__pnm_skip_whitespace(s, &c);</div> +<div class="line"><a name="l07869"></a><span class="lineno"> 7869</span> </div> +<div class="line"><a name="l07870"></a><span class="lineno"> 7870</span>  *x = stbi__pnm_getinteger(s, &c); <span class="comment">// read width</span></div> +<div class="line"><a name="l07871"></a><span class="lineno"> 7871</span>  stbi__pnm_skip_whitespace(s, &c);</div> +<div class="line"><a name="l07872"></a><span class="lineno"> 7872</span> </div> +<div class="line"><a name="l07873"></a><span class="lineno"> 7873</span>  *y = stbi__pnm_getinteger(s, &c); <span class="comment">// read height</span></div> +<div class="line"><a name="l07874"></a><span class="lineno"> 7874</span>  stbi__pnm_skip_whitespace(s, &c);</div> +<div class="line"><a name="l07875"></a><span class="lineno"> 7875</span> </div> +<div class="line"><a name="l07876"></a><span class="lineno"> 7876</span>  maxv = stbi__pnm_getinteger(s, &c); <span class="comment">// read max value</span></div> +<div class="line"><a name="l07877"></a><span class="lineno"> 7877</span> </div> +<div class="line"><a name="l07878"></a><span class="lineno"> 7878</span>  <span class="keywordflow">if</span> (maxv > 255)</div> +<div class="line"><a name="l07879"></a><span class="lineno"> 7879</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"max value > 255"</span>, <span class="stringliteral">"PPM image not 8-bit"</span>);</div> +<div class="line"><a name="l07880"></a><span class="lineno"> 7880</span>  <span class="keywordflow">else</span></div> +<div class="line"><a name="l07881"></a><span class="lineno"> 7881</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07882"></a><span class="lineno"> 7882</span> }</div> +<div class="line"><a name="l07883"></a><span class="lineno"> 7883</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07884"></a><span class="lineno"> 7884</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07885"></a><span class="lineno"> 7885</span> <span class="keyword">static</span> <span class="keywordtype">int</span> stbi__info_main(stbi__context *s, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07886"></a><span class="lineno"> 7886</span> {</div> +<div class="line"><a name="l07887"></a><span class="lineno"> 7887</span> <span class="preprocessor">#ifndef STBI_NO_JPEG</span></div> +<div class="line"><a name="l07888"></a><span class="lineno"> 7888</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__jpeg_info(s, x, y, comp))</div> +<div class="line"><a name="l07889"></a><span class="lineno"> 7889</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07890"></a><span class="lineno"> 7890</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07891"></a><span class="lineno"> 7891</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07892"></a><span class="lineno"> 7892</span> <span class="preprocessor">#ifndef STBI_NO_PNG</span></div> +<div class="line"><a name="l07893"></a><span class="lineno"> 7893</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__png_info(s, x, y, comp))</div> +<div class="line"><a name="l07894"></a><span class="lineno"> 7894</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07895"></a><span class="lineno"> 7895</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07896"></a><span class="lineno"> 7896</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07897"></a><span class="lineno"> 7897</span> <span class="preprocessor">#ifndef STBI_NO_GIF</span></div> +<div class="line"><a name="l07898"></a><span class="lineno"> 7898</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__gif_info(s, x, y, comp))</div> +<div class="line"><a name="l07899"></a><span class="lineno"> 7899</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07900"></a><span class="lineno"> 7900</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07901"></a><span class="lineno"> 7901</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07902"></a><span class="lineno"> 7902</span> <span class="preprocessor">#ifndef STBI_NO_BMP</span></div> +<div class="line"><a name="l07903"></a><span class="lineno"> 7903</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__bmp_info(s, x, y, comp))</div> +<div class="line"><a name="l07904"></a><span class="lineno"> 7904</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07905"></a><span class="lineno"> 7905</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07906"></a><span class="lineno"> 7906</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07907"></a><span class="lineno"> 7907</span> <span class="preprocessor">#ifndef STBI_NO_PSD</span></div> +<div class="line"><a name="l07908"></a><span class="lineno"> 7908</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__psd_info(s, x, y, comp))</div> +<div class="line"><a name="l07909"></a><span class="lineno"> 7909</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07910"></a><span class="lineno"> 7910</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07911"></a><span class="lineno"> 7911</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07912"></a><span class="lineno"> 7912</span> <span class="preprocessor">#ifndef STBI_NO_PIC</span></div> +<div class="line"><a name="l07913"></a><span class="lineno"> 7913</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pic_info(s, x, y, comp))</div> +<div class="line"><a name="l07914"></a><span class="lineno"> 7914</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07915"></a><span class="lineno"> 7915</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07916"></a><span class="lineno"> 7916</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07917"></a><span class="lineno"> 7917</span> <span class="preprocessor">#ifndef STBI_NO_PNM</span></div> +<div class="line"><a name="l07918"></a><span class="lineno"> 7918</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__pnm_info(s, x, y, comp))</div> +<div class="line"><a name="l07919"></a><span class="lineno"> 7919</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07920"></a><span class="lineno"> 7920</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07921"></a><span class="lineno"> 7921</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07922"></a><span class="lineno"> 7922</span> <span class="preprocessor">#ifndef STBI_NO_HDR</span></div> +<div class="line"><a name="l07923"></a><span class="lineno"> 7923</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__hdr_info(s, x, y, comp))</div> +<div class="line"><a name="l07924"></a><span class="lineno"> 7924</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07925"></a><span class="lineno"> 7925</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07926"></a><span class="lineno"> 7926</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07927"></a><span class="lineno"> 7927</span> <span class="comment">// test tga last because it's a crappy test!</span></div> +<div class="line"><a name="l07928"></a><span class="lineno"> 7928</span> <span class="preprocessor">#ifndef STBI_NO_TGA</span></div> +<div class="line"><a name="l07929"></a><span class="lineno"> 7929</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> (stbi__tga_info(s, x, y, comp))</div> +<div class="line"><a name="l07930"></a><span class="lineno"> 7930</span>  <span class="keywordflow">return</span> 1;</div> +<div class="line"><a name="l07931"></a><span class="lineno"> 7931</span> <span class="preprocessor">#endif</span></div> +<div class="line"><a name="l07932"></a><span class="lineno"> 7932</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"unknown image type"</span>,</div> +<div class="line"><a name="l07933"></a><span class="lineno"> 7933</span>  <span class="stringliteral">"Image not of any known type, or corrupt"</span>);</div> +<div class="line"><a name="l07934"></a><span class="lineno"> 7934</span> }</div> +<div class="line"><a name="l07935"></a><span class="lineno"> 7935</span> </div> +<div class="line"><a name="l07936"></a><span class="lineno"> 7936</span> <span class="preprocessor">#ifndef STBI_NO_STDIO</span></div> +<div class="line"><a name="l07937"></a><span class="lineno"> 7937</span> <span class="preprocessor"></span><a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#aede708cca1304520b2afcf4d5eb61d70">stbi_info</a>(<span class="keywordtype">char</span> <span class="keyword">const</span> *filename, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07938"></a><span class="lineno"> 7938</span> {</div> +<div class="line"><a name="l07939"></a><span class="lineno"> 7939</span>  FILE *f = stbi__fopen(filename, <span class="stringliteral">"rb"</span>);</div> +<div class="line"><a name="l07940"></a><span class="lineno"> 7940</span>  <span class="keywordtype">int</span> result;</div> +<div class="line"><a name="l07941"></a><span class="lineno"> 7941</span>  <span class="keywordflow">if</span> (!f)</div> +<div class="line"><a name="l07942"></a><span class="lineno"> 7942</span>  <span class="keywordflow">return</span> stbi__err(<span class="stringliteral">"can't fopen"</span>, <span class="stringliteral">"Unable to open file"</span>);</div> +<div class="line"><a name="l07943"></a><span class="lineno"> 7943</span>  result = <a class="code" href="stb__image_8h.html#a28abedef4a0a93909332080df6be0021">stbi_info_from_file</a>(f, x, y, comp);</div> +<div class="line"><a name="l07944"></a><span class="lineno"> 7944</span>  fclose(f);</div> +<div class="line"><a name="l07945"></a><span class="lineno"> 7945</span>  <span class="keywordflow">return</span> result;</div> +<div class="line"><a name="l07946"></a><span class="lineno"> 7946</span> }</div> +<div class="line"><a name="l07947"></a><span class="lineno"> 7947</span> </div> +<div class="line"><a name="l07948"></a><span class="lineno"> 7948</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a28abedef4a0a93909332080df6be0021">stbi_info_from_file</a>(FILE *f, <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07949"></a><span class="lineno"> 7949</span> {</div> +<div class="line"><a name="l07950"></a><span class="lineno"> 7950</span>  <span class="keywordtype">int</span> r;</div> +<div class="line"><a name="l07951"></a><span class="lineno"> 7951</span>  stbi__context s;</div> +<div class="line"><a name="l07952"></a><span class="lineno"> 7952</span>  <span class="keywordtype">long</span> pos = ftell(f);</div> +<div class="line"><a name="l07953"></a><span class="lineno"> 7953</span>  stbi__start_file(&s, f);</div> +<div class="line"><a name="l07954"></a><span class="lineno"> 7954</span>  r = stbi__info_main(&s, x, y, comp);</div> +<div class="line"><a name="l07955"></a><span class="lineno"> 7955</span>  fseek(f, pos, SEEK_SET);</div> +<div class="line"><a name="l07956"></a><span class="lineno"> 7956</span>  <span class="keywordflow">return</span> r;</div> +<div class="line"><a name="l07957"></a><span class="lineno"> 7957</span> }</div> +<div class="line"><a name="l07958"></a><span class="lineno"> 7958</span> <span class="preprocessor">#endif // !STBI_NO_STDIO</span></div> +<div class="line"><a name="l07959"></a><span class="lineno"> 7959</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07960"></a><span class="lineno"> 7960</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#acfef077febce3bc3f1f339de478f3315">stbi_info_from_memory</a>(<a class="code" href="stb__image_8h.html#a28eb51a1512ce382ee50f20e1d04d50d">stbi_uc</a> <span class="keyword">const</span> *buffer, <span class="keywordtype">int</span> len, <span class="keywordtype">int</span> *x,</div> +<div class="line"><a name="l07961"></a><span class="lineno"> 7961</span>  <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07962"></a><span class="lineno"> 7962</span> {</div> +<div class="line"><a name="l07963"></a><span class="lineno"> 7963</span>  stbi__context s;</div> +<div class="line"><a name="l07964"></a><span class="lineno"> 7964</span>  stbi__start_mem(&s, buffer, len);</div> +<div class="line"><a name="l07965"></a><span class="lineno"> 7965</span>  <span class="keywordflow">return</span> stbi__info_main(&s, x, y, comp);</div> +<div class="line"><a name="l07966"></a><span class="lineno"> 7966</span> }</div> +<div class="line"><a name="l07967"></a><span class="lineno"> 7967</span> </div> +<div class="line"><a name="l07968"></a><span class="lineno"> 7968</span> <a class="code" href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a> <span class="keywordtype">int</span> <a class="code" href="stb__image_8h.html#a86291c64cb663f41a34647d5e1abf363">stbi_info_from_callbacks</a>(<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> <span class="keyword">const</span> *c, <span class="keywordtype">void</span> *user,</div> +<div class="line"><a name="l07969"></a><span class="lineno"> 7969</span>  <span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *y, <span class="keywordtype">int</span> *comp)</div> +<div class="line"><a name="l07970"></a><span class="lineno"> 7970</span> {</div> +<div class="line"><a name="l07971"></a><span class="lineno"> 7971</span>  stbi__context s;</div> +<div class="line"><a name="l07972"></a><span class="lineno"> 7972</span>  stbi__start_callbacks(&s, (<a class="code" href="structstbi__io__callbacks.html">stbi_io_callbacks</a> *)c, user);</div> +<div class="line"><a name="l07973"></a><span class="lineno"> 7973</span>  <span class="keywordflow">return</span> stbi__info_main(&s, x, y, comp);</div> +<div class="line"><a name="l07974"></a><span class="lineno"> 7974</span> }</div> +<div class="line"><a name="l07975"></a><span class="lineno"> 7975</span> </div> +<div class="line"><a name="l07976"></a><span class="lineno"> 7976</span> <span class="preprocessor">#endif // STB_IMAGE_IMPLEMENTATION</span></div> +<div class="line"><a name="l07977"></a><span class="lineno"> 7977</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l07978"></a><span class="lineno"> 7978</span> <span class="comment">/*</span></div> +<div class="line"><a name="l07979"></a><span class="lineno"> 7979</span> <span class="comment"> revision history:</span></div> +<div class="line"><a name="l07980"></a><span class="lineno"> 7980</span> <span class="comment"> 2.16 (2017-07-23) all functions have 16-bit variants;</span></div> +<div class="line"><a name="l07981"></a><span class="lineno"> 7981</span> <span class="comment"> STBI_NO_STDIO works again;</span></div> +<div class="line"><a name="l07982"></a><span class="lineno"> 7982</span> <span class="comment"> compilation fixes;</span></div> +<div class="line"><a name="l07983"></a><span class="lineno"> 7983</span> <span class="comment"> fix rounding in unpremultiply;</span></div> +<div class="line"><a name="l07984"></a><span class="lineno"> 7984</span> <span class="comment"> optimize vertical flip;</span></div> +<div class="line"><a name="l07985"></a><span class="lineno"> 7985</span> <span class="comment"> disable raw_len validation;</span></div> +<div class="line"><a name="l07986"></a><span class="lineno"> 7986</span> <span class="comment"> documentation fixes</span></div> +<div class="line"><a name="l07987"></a><span class="lineno"> 7987</span> <span class="comment"> 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode;</span></div> +<div class="line"><a name="l07988"></a><span class="lineno"> 7988</span> <span class="comment"> warning fixes; disable run-time SSE detection on gcc;</span></div> +<div class="line"><a name="l07989"></a><span class="lineno"> 7989</span> <span class="comment"> uniform handling of optional "return" values;</span></div> +<div class="line"><a name="l07990"></a><span class="lineno"> 7990</span> <span class="comment"> thread-safe initialization of zlib tables</span></div> +<div class="line"><a name="l07991"></a><span class="lineno"> 7991</span> <span class="comment"> 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet</span></div> +<div class="line"><a name="l07992"></a><span class="lineno"> 7992</span> <span class="comment"> JPGs 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now 2.12</span></div> +<div class="line"><a name="l07993"></a><span class="lineno"> 7993</span> <span class="comment"> (2016-04-02) fix typo in 2.11 PSD fix that caused crashes 2.11 (2016-04-02)</span></div> +<div class="line"><a name="l07994"></a><span class="lineno"> 7994</span> <span class="comment"> allocate large structures on the stack remove white matting for transparent</span></div> +<div class="line"><a name="l07995"></a><span class="lineno"> 7995</span> <span class="comment"> PSD fix reported channel count for PNG & BMP re-enable SSE2 in non-gcc 64-bit</span></div> +<div class="line"><a name="l07996"></a><span class="lineno"> 7996</span> <span class="comment"> support RGB-formatted JPEG</span></div> +<div class="line"><a name="l07997"></a><span class="lineno"> 7997</span> <span class="comment"> read 16-bit PNGs (only as 8-bit)</span></div> +<div class="line"><a name="l07998"></a><span class="lineno"> 7998</span> <span class="comment"> 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED</span></div> +<div class="line"><a name="l07999"></a><span class="lineno"> 7999</span> <span class="comment"> 2.09 (2016-01-16) allow comments in PNM files</span></div> +<div class="line"><a name="l08000"></a><span class="lineno"> 8000</span> <span class="comment"> 16-bit-per-pixel TGA (not bit-per-component)</span></div> +<div class="line"><a name="l08001"></a><span class="lineno"> 8001</span> <span class="comment"> info() for TGA could break due to .hdr handling</span></div> +<div class="line"><a name="l08002"></a><span class="lineno"> 8002</span> <span class="comment"> info() for BMP to shares code instead of sloppy parse</span></div> +<div class="line"><a name="l08003"></a><span class="lineno"> 8003</span> <span class="comment"> can use STBI_REALLOC_SIZED if allocator doesn't support</span></div> +<div class="line"><a name="l08004"></a><span class="lineno"> 8004</span> <span class="comment"> realloc code cleanup 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD</span></div> +<div class="line"><a name="l08005"></a><span class="lineno"> 8005</span> <span class="comment"> as RGBA 2.07 (2015-09-13) fix compiler warnings partial animated GIF support</span></div> +<div class="line"><a name="l08006"></a><span class="lineno"> 8006</span> <span class="comment"> limited 16-bpc PSD support</span></div> +<div class="line"><a name="l08007"></a><span class="lineno"> 8007</span> <span class="comment"> #ifdef unused functions</span></div> +<div class="line"><a name="l08008"></a><span class="lineno"> 8008</span> <span class="comment"> bug with < 92 byte PIC,PNM,HDR,TGA</span></div> +<div class="line"><a name="l08009"></a><span class="lineno"> 8009</span> <span class="comment"> 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value</span></div> +<div class="line"><a name="l08010"></a><span class="lineno"> 8010</span> <span class="comment"> 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning</span></div> +<div class="line"><a name="l08011"></a><span class="lineno"> 8011</span> <span class="comment"> 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit</span></div> +<div class="line"><a name="l08012"></a><span class="lineno"> 8012</span> <span class="comment"> 2.03 (2015-04-12) extra corruption checking (mmozeiko)</span></div> +<div class="line"><a name="l08013"></a><span class="lineno"> 8013</span> <span class="comment"> stbi_set_flip_vertically_on_load (nguillemot)</span></div> +<div class="line"><a name="l08014"></a><span class="lineno"> 8014</span> <span class="comment"> fix NEON support; fix mingw support</span></div> +<div class="line"><a name="l08015"></a><span class="lineno"> 8015</span> <span class="comment"> 2.02 (2015-01-19) fix incorrect assert, fix warning</span></div> +<div class="line"><a name="l08016"></a><span class="lineno"> 8016</span> <span class="comment"> 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit</span></div> +<div class="line"><a name="l08017"></a><span class="lineno"> 8017</span> <span class="comment"> without -msse2 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG 2.00</span></div> +<div class="line"><a name="l08018"></a><span class="lineno"> 8018</span> <span class="comment"> (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) progressive</span></div> +<div class="line"><a name="l08019"></a><span class="lineno"> 8019</span> <span class="comment"> JPEG (stb) PGM/PPM support (Ken Miller) STBI_MALLOC,STBI_REALLOC,STBI_FREE</span></div> +<div class="line"><a name="l08020"></a><span class="lineno"> 8020</span> <span class="comment"> GIF bugfix -- seemingly never worked</span></div> +<div class="line"><a name="l08021"></a><span class="lineno"> 8021</span> <span class="comment"> STBI_NO_*, STBI_ONLY_*</span></div> +<div class="line"><a name="l08022"></a><span class="lineno"> 8022</span> <span class="comment"> 1.48 (2014-12-14) fix incorrectly-named assert()</span></div> +<div class="line"><a name="l08023"></a><span class="lineno"> 8023</span> <span class="comment"> 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar</span></div> +<div class="line"><a name="l08024"></a><span class="lineno"> 8024</span> <span class="comment"> Cornut & stb) optimize PNG (ryg) fix bug in interlaced PNG with</span></div> +<div class="line"><a name="l08025"></a><span class="lineno"> 8025</span> <span class="comment"> user-specified channel count (stb) 1.46 (2014-08-26) fix broken tRNS chunk</span></div> +<div class="line"><a name="l08026"></a><span class="lineno"> 8026</span> <span class="comment"> (colorkey-style transparency) in non-paletted PNG 1.45 (2014-08-16) fix</span></div> +<div class="line"><a name="l08027"></a><span class="lineno"> 8027</span> <span class="comment"> MSVC-ARM internal compiler error by wrapping malloc 1.44 (2014-08-07)</span></div> +<div class="line"><a name="l08028"></a><span class="lineno"> 8028</span> <span class="comment"> various warning fixes from Ronny Chevalier</span></div> +<div class="line"><a name="l08029"></a><span class="lineno"> 8029</span> <span class="comment"> 1.43 (2014-07-15)</span></div> +<div class="line"><a name="l08030"></a><span class="lineno"> 8030</span> <span class="comment"> fix MSVC-only compiler problem in code changed in 1.42</span></div> +<div class="line"><a name="l08031"></a><span class="lineno"> 8031</span> <span class="comment"> 1.42 (2014-07-09)</span></div> +<div class="line"><a name="l08032"></a><span class="lineno"> 8032</span> <span class="comment"> don't define _CRT_SECURE_NO_WARNINGS (affects user code)</span></div> +<div class="line"><a name="l08033"></a><span class="lineno"> 8033</span> <span class="comment"> fixes to stbi__cleanup_jpeg path</span></div> +<div class="line"><a name="l08034"></a><span class="lineno"> 8034</span> <span class="comment"> added STBI_ASSERT to avoid requiring assert.h</span></div> +<div class="line"><a name="l08035"></a><span class="lineno"> 8035</span> <span class="comment"> 1.41 (2014-06-25)</span></div> +<div class="line"><a name="l08036"></a><span class="lineno"> 8036</span> <span class="comment"> fix search&replace from 1.36 that messed up comments/error</span></div> +<div class="line"><a name="l08037"></a><span class="lineno"> 8037</span> <span class="comment"> messages 1.40 (2014-06-22) fix gcc struct-initialization warning 1.39</span></div> +<div class="line"><a name="l08038"></a><span class="lineno"> 8038</span> <span class="comment"> (2014-06-15) fix to TGA optimization when req_comp != number of components in</span></div> +<div class="line"><a name="l08039"></a><span class="lineno"> 8039</span> <span class="comment"> TGA; fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my</span></div> +<div class="line"><a name="l08040"></a><span class="lineno"> 8040</span> <span class="comment"> test suite) add support for BMP version 5 (more ignored fields) 1.38</span></div> +<div class="line"><a name="l08041"></a><span class="lineno"> 8041</span> <span class="comment"> (2014-06-06) suppress MSVC warnings on integer casts truncating values fix</span></div> +<div class="line"><a name="l08042"></a><span class="lineno"> 8042</span> <span class="comment"> accidental rename of 'skip' field of I/O 1.37 (2014-06-04) remove duplicate</span></div> +<div class="line"><a name="l08043"></a><span class="lineno"> 8043</span> <span class="comment"> typedef 1.36 (2014-06-03) convert to header file single-file library if</span></div> +<div class="line"><a name="l08044"></a><span class="lineno"> 8044</span> <span class="comment"> de-iphone isn't set, load iphone images color-swapped instead of returning</span></div> +<div class="line"><a name="l08045"></a><span class="lineno"> 8045</span> <span class="comment"> NULL 1.35 (2014-05-27) various warnings fix broken STBI_SIMD path fix bug</span></div> +<div class="line"><a name="l08046"></a><span class="lineno"> 8046</span> <span class="comment"> where stbi_load_from_file no longer left file pointer in correct place fix</span></div> +<div class="line"><a name="l08047"></a><span class="lineno"> 8047</span> <span class="comment"> broken non-easy path for 32-bit BMP (possibly never used) TGA optimization by</span></div> +<div class="line"><a name="l08048"></a><span class="lineno"> 8048</span> <span class="comment"> Arseny Kapoulkine 1.34 (unknown) use STBI_NOTUSED in</span></div> +<div class="line"><a name="l08049"></a><span class="lineno"> 8049</span> <span class="comment"> stbi__resample_row_generic(), fix one more leak in tga failure case 1.33</span></div> +<div class="line"><a name="l08050"></a><span class="lineno"> 8050</span> <span class="comment"> (2011-07-14) make stbi_is_hdr work in STBI_NO_HDR (as specified), minor</span></div> +<div class="line"><a name="l08051"></a><span class="lineno"> 8051</span> <span class="comment"> compiler-friendly improvements 1.32 (2011-07-13) support for "info" function</span></div> +<div class="line"><a name="l08052"></a><span class="lineno"> 8052</span> <span class="comment"> for all supported filetypes (SpartanJ) 1.31 (2011-06-20) a few more leak</span></div> +<div class="line"><a name="l08053"></a><span class="lineno"> 8053</span> <span class="comment"> fixes, bug in PNG handling (SpartanJ) 1.30 (2011-06-11) added ability to</span></div> +<div class="line"><a name="l08054"></a><span class="lineno"> 8054</span> <span class="comment"> load files via callbacks to accomidate custom input streams (Ben Wenger)</span></div> +<div class="line"><a name="l08055"></a><span class="lineno"> 8055</span> <span class="comment"> removed deprecated format-specific test/load functions</span></div> +<div class="line"><a name="l08056"></a><span class="lineno"> 8056</span> <span class="comment"> removed support for installable file formats (stbi_loader) --</span></div> +<div class="line"><a name="l08057"></a><span class="lineno"> 8057</span> <span class="comment"> would have been broken for IO callbacks anyway error cases in bmp and tga</span></div> +<div class="line"><a name="l08058"></a><span class="lineno"> 8058</span> <span class="comment"> give messages and don't leak (Raymond Barbiero, grisha) fix inefficiency in</span></div> +<div class="line"><a name="l08059"></a><span class="lineno"> 8059</span> <span class="comment"> decoding 32-bit BMP (David Woo) 1.29 (2010-08-16) various warning fixes from</span></div> +<div class="line"><a name="l08060"></a><span class="lineno"> 8060</span> <span class="comment"> Aurelien Pocheville 1.28 (2010-08-01) fix bug in GIF palette transparency</span></div> +<div class="line"><a name="l08061"></a><span class="lineno"> 8061</span> <span class="comment"> (SpartanJ) 1.27 (2010-08-01) cast-to-stbi_uc to fix warnings 1.26</span></div> +<div class="line"><a name="l08062"></a><span class="lineno"> 8062</span> <span class="comment"> (2010-07-24) fix bug in file buffering for PNG reported by SpartanJ 1.25</span></div> +<div class="line"><a name="l08063"></a><span class="lineno"> 8063</span> <span class="comment"> (2010-07-17) refix trans_data warning (Won Chun) 1.24 (2010-07-12) perf</span></div> +<div class="line"><a name="l08064"></a><span class="lineno"> 8064</span> <span class="comment"> improvements reading from files on platforms with lock-heavy fgetc() minor</span></div> +<div class="line"><a name="l08065"></a><span class="lineno"> 8065</span> <span class="comment"> perf improvements for jpeg deprecated type-specific functions so we'll get</span></div> +<div class="line"><a name="l08066"></a><span class="lineno"> 8066</span> <span class="comment"> feedback if they're needed attempt to fix trans_data warning (Won Chun) 1.23</span></div> +<div class="line"><a name="l08067"></a><span class="lineno"> 8067</span> <span class="comment"> fixed bug in iPhone support 1.22 (2010-07-10) removed image *writing*</span></div> +<div class="line"><a name="l08068"></a><span class="lineno"> 8068</span> <span class="comment"> support stbi_info support from Jetro Lauha GIF support from Jean-Marc Lienher</span></div> +<div class="line"><a name="l08069"></a><span class="lineno"> 8069</span> <span class="comment"> iPhone PNG-extensions from James Brown</span></div> +<div class="line"><a name="l08070"></a><span class="lineno"> 8070</span> <span class="comment"> warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err.</span></div> +<div class="line"><a name="l08071"></a><span class="lineno"> 8071</span> <span class="comment"> Janez (U+017D)emva) 1.21 fix use of 'stbi_uc' in header (reported by jon</span></div> +<div class="line"><a name="l08072"></a><span class="lineno"> 8072</span> <span class="comment"> blow) 1.20 added support for Softimage PIC, by Tom Seddon 1.19 bug in</span></div> +<div class="line"><a name="l08073"></a><span class="lineno"> 8073</span> <span class="comment"> interlaced PNG corruption check (found by ryg) 1.18 (2008-08-02) fix a</span></div> +<div class="line"><a name="l08074"></a><span class="lineno"> 8074</span> <span class="comment"> threading bug (local mutable static) 1.17 support interlaced PNG 1.16</span></div> +<div class="line"><a name="l08075"></a><span class="lineno"> 8075</span> <span class="comment"> major bugfix - stbi__convert_format converted one too many pixels 1.15</span></div> +<div class="line"><a name="l08076"></a><span class="lineno"> 8076</span> <span class="comment"> initialize some fields for thread safety 1.14 fix threadsafe conversion</span></div> +<div class="line"><a name="l08077"></a><span class="lineno"> 8077</span> <span class="comment"> bug header-file-only version (#define STBI_HEADER_FILE_ONLY before including)</span></div> +<div class="line"><a name="l08078"></a><span class="lineno"> 8078</span> <span class="comment"> 1.13 threadsafe</span></div> +<div class="line"><a name="l08079"></a><span class="lineno"> 8079</span> <span class="comment"> 1.12 const qualifiers in the API</span></div> +<div class="line"><a name="l08080"></a><span class="lineno"> 8080</span> <span class="comment"> 1.11 Support installable IDCT, colorspace conversion routines</span></div> +<div class="line"><a name="l08081"></a><span class="lineno"> 8081</span> <span class="comment"> 1.10 Fixes for 64-bit (don't use "unsigned long")</span></div> +<div class="line"><a name="l08082"></a><span class="lineno"> 8082</span> <span class="comment"> optimized upsampling by Fabian "ryg" Giesen</span></div> +<div class="line"><a name="l08083"></a><span class="lineno"> 8083</span> <span class="comment"> 1.09 Fix format-conversion for PSD code (bad global variables!)</span></div> +<div class="line"><a name="l08084"></a><span class="lineno"> 8084</span> <span class="comment"> 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz</span></div> +<div class="line"><a name="l08085"></a><span class="lineno"> 8085</span> <span class="comment"> 1.07 attempt to fix C++ warning/errors again</span></div> +<div class="line"><a name="l08086"></a><span class="lineno"> 8086</span> <span class="comment"> 1.06 attempt to fix C++ warning/errors again</span></div> +<div class="line"><a name="l08087"></a><span class="lineno"> 8087</span> <span class="comment"> 1.05 fix TGA loading to return correct *comp and use good luminance</span></div> +<div class="line"><a name="l08088"></a><span class="lineno"> 8088</span> <span class="comment"> calc 1.04 default float alpha is 1, not 255; use 'void *' for</span></div> +<div class="line"><a name="l08089"></a><span class="lineno"> 8089</span> <span class="comment"> stbi_image_free 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR 1.02</span></div> +<div class="line"><a name="l08090"></a><span class="lineno"> 8090</span> <span class="comment"> support for (subset of) HDR files, float interface for preferred access to</span></div> +<div class="line"><a name="l08091"></a><span class="lineno"> 8091</span> <span class="comment"> them 1.01 fix bug: possible bug in handling right-side up bmps... not sure</span></div> +<div class="line"><a name="l08092"></a><span class="lineno"> 8092</span> <span class="comment"> fix bug: the stbi__bmp_load() and stbi__tga_load() functions</span></div> +<div class="line"><a name="l08093"></a><span class="lineno"> 8093</span> <span class="comment"> didn't work at all 1.00 interface to zlib that skips zlib header 0.99</span></div> +<div class="line"><a name="l08094"></a><span class="lineno"> 8094</span> <span class="comment"> correct handling of alpha in palette 0.98 TGA loader by lonesock;</span></div> +<div class="line"><a name="l08095"></a><span class="lineno"> 8095</span> <span class="comment"> dynamically add loaders (untested) 0.97 jpeg errors on too large a file;</span></div> +<div class="line"><a name="l08096"></a><span class="lineno"> 8096</span> <span class="comment"> also catch another malloc failure 0.96 fix detection of invalid v value -</span></div> +<div class="line"><a name="l08097"></a><span class="lineno"> 8097</span> <span class="comment"> particleman@mollyrocket forum 0.95 during header scan, seek to markers in</span></div> +<div class="line"><a name="l08098"></a><span class="lineno"> 8098</span> <span class="comment"> case of padding 0.94 STBI_NO_STDIO to disable stdio usage; rename all</span></div> +<div class="line"><a name="l08099"></a><span class="lineno"> 8099</span> <span class="comment"> #defines the same 0.93 handle jpegtran output; verbose errors 0.92 read</span></div> +<div class="line"><a name="l08100"></a><span class="lineno"> 8100</span> <span class="comment"> 4,8,16,24,32-bit BMP files of several formats 0.91 output 24-bit</span></div> +<div class="line"><a name="l08101"></a><span class="lineno"> 8101</span> <span class="comment"> Windows 3.0 BMP files 0.90 fix a few more warnings; bump version number to</span></div> +<div class="line"><a name="l08102"></a><span class="lineno"> 8102</span> <span class="comment"> approach 1.0 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd 0.60</span></div> +<div class="line"><a name="l08103"></a><span class="lineno"> 8103</span> <span class="comment"> fix compiling as c++ 0.59 fix warnings: merge Dave Moore's -Wall fixes</span></div> +<div class="line"><a name="l08104"></a><span class="lineno"> 8104</span> <span class="comment"> 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian</span></div> +<div class="line"><a name="l08105"></a><span class="lineno"> 8105</span> <span class="comment"> 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but</span></div> +<div class="line"><a name="l08106"></a><span class="lineno"> 8106</span> <span class="comment"> less than 16 available 0.56 fix bug: zlib uncompressed mode len vs. nlen</span></div> +<div class="line"><a name="l08107"></a><span class="lineno"> 8107</span> <span class="comment"> 0.55 fix bug: restart_interval not initialized to 0</span></div> +<div class="line"><a name="l08108"></a><span class="lineno"> 8108</span> <span class="comment"> 0.54 allow NULL for 'int *comp'</span></div> +<div class="line"><a name="l08109"></a><span class="lineno"> 8109</span> <span class="comment"> 0.53 fix bug in png 3->4; speedup png decoding</span></div> +<div class="line"><a name="l08110"></a><span class="lineno"> 8110</span> <span class="comment"> 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments</span></div> +<div class="line"><a name="l08111"></a><span class="lineno"> 8111</span> <span class="comment"> 0.51 obey req_comp requests, 1-component jpegs return as 1-component,</span></div> +<div class="line"><a name="l08112"></a><span class="lineno"> 8112</span> <span class="comment"> on 'test' only check type, not whether we support this variant</span></div> +<div class="line"><a name="l08113"></a><span class="lineno"> 8113</span> <span class="comment"> 0.50 (2006-11-19)</span></div> +<div class="line"><a name="l08114"></a><span class="lineno"> 8114</span> <span class="comment"> first released version</span></div> +<div class="line"><a name="l08115"></a><span class="lineno"> 8115</span> <span class="comment">*/</span></div> +<div class="line"><a name="l08116"></a><span class="lineno"> 8116</span> </div> +<div class="line"><a name="l08117"></a><span class="lineno"> 8117</span> <span class="comment">/*</span></div> +<div class="line"><a name="l08118"></a><span class="lineno"> 8118</span> <span class="comment">------------------------------------------------------------------------------</span></div> +<div class="line"><a name="l08119"></a><span class="lineno"> 8119</span> <span class="comment">This software is available under 2 licenses -- choose whichever you prefer.</span></div> +<div class="line"><a name="l08120"></a><span class="lineno"> 8120</span> <span class="comment">------------------------------------------------------------------------------</span></div> +<div class="line"><a name="l08121"></a><span class="lineno"> 8121</span> <span class="comment">ALTERNATIVE A - MIT License</span></div> +<div class="line"><a name="l08122"></a><span class="lineno"> 8122</span> <span class="comment">Copyright (c) 2017 Sean Barrett</span></div> +<div class="line"><a name="l08123"></a><span class="lineno"> 8123</span> <span class="comment">Permission is hereby granted, free of charge, to any person obtaining a copy of</span></div> +<div class="line"><a name="l08124"></a><span class="lineno"> 8124</span> <span class="comment">this software and associated documentation files (the "Software"), to deal in</span></div> +<div class="line"><a name="l08125"></a><span class="lineno"> 8125</span> <span class="comment">the Software without restriction, including without limitation the rights to</span></div> +<div class="line"><a name="l08126"></a><span class="lineno"> 8126</span> <span class="comment">use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies</span></div> +<div class="line"><a name="l08127"></a><span class="lineno"> 8127</span> <span class="comment">of the Software, and to permit persons to whom the Software is furnished to do</span></div> +<div class="line"><a name="l08128"></a><span class="lineno"> 8128</span> <span class="comment">so, subject to the following conditions:</span></div> +<div class="line"><a name="l08129"></a><span class="lineno"> 8129</span> <span class="comment">The above copyright notice and this permission notice shall be included in all</span></div> +<div class="line"><a name="l08130"></a><span class="lineno"> 8130</span> <span class="comment">copies or substantial portions of the Software.</span></div> +<div class="line"><a name="l08131"></a><span class="lineno"> 8131</span> <span class="comment">THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div> +<div class="line"><a name="l08132"></a><span class="lineno"> 8132</span> <span class="comment">IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div> +<div class="line"><a name="l08133"></a><span class="lineno"> 8133</span> <span class="comment">FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div> +<div class="line"><a name="l08134"></a><span class="lineno"> 8134</span> <span class="comment">AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div> +<div class="line"><a name="l08135"></a><span class="lineno"> 8135</span> <span class="comment">LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div> +<div class="line"><a name="l08136"></a><span class="lineno"> 8136</span> <span class="comment">OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div> +<div class="line"><a name="l08137"></a><span class="lineno"> 8137</span> <span class="comment">SOFTWARE.</span></div> +<div class="line"><a name="l08138"></a><span class="lineno"> 8138</span> <span class="comment">------------------------------------------------------------------------------</span></div> +<div class="line"><a name="l08139"></a><span class="lineno"> 8139</span> <span class="comment">ALTERNATIVE B - Public Domain (www.unlicense.org)</span></div> +<div class="line"><a name="l08140"></a><span class="lineno"> 8140</span> <span class="comment">This is free and unencumbered software released into the public domain.</span></div> +<div class="line"><a name="l08141"></a><span class="lineno"> 8141</span> <span class="comment">Anyone is free to copy, modify, publish, use, compile, sell, or distribute this</span></div> +<div class="line"><a name="l08142"></a><span class="lineno"> 8142</span> <span class="comment">software, either in source code form or as a compiled binary, for any purpose,</span></div> +<div class="line"><a name="l08143"></a><span class="lineno"> 8143</span> <span class="comment">commercial or non-commercial, and by any means.</span></div> +<div class="line"><a name="l08144"></a><span class="lineno"> 8144</span> <span class="comment">In jurisdictions that recognize copyright laws, the author or authors of this</span></div> +<div class="line"><a name="l08145"></a><span class="lineno"> 8145</span> <span class="comment">software dedicate any and all copyright interest in the software to the public</span></div> +<div class="line"><a name="l08146"></a><span class="lineno"> 8146</span> <span class="comment">domain. We make this dedication for the benefit of the public at large and to</span></div> +<div class="line"><a name="l08147"></a><span class="lineno"> 8147</span> <span class="comment">the detriment of our heirs and successors. We intend this dedication to be an</span></div> +<div class="line"><a name="l08148"></a><span class="lineno"> 8148</span> <span class="comment">overt act of relinquishment in perpetuity of all present and future rights to</span></div> +<div class="line"><a name="l08149"></a><span class="lineno"> 8149</span> <span class="comment">this software under copyright law.</span></div> +<div class="line"><a name="l08150"></a><span class="lineno"> 8150</span> <span class="comment">THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div> +<div class="line"><a name="l08151"></a><span class="lineno"> 8151</span> <span class="comment">IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div> +<div class="line"><a name="l08152"></a><span class="lineno"> 8152</span> <span class="comment">FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div> +<div class="line"><a name="l08153"></a><span class="lineno"> 8153</span> <span class="comment">AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span></div> +<div class="line"><a name="l08154"></a><span class="lineno"> 8154</span> <span class="comment">ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION</span></div> +<div class="line"><a name="l08155"></a><span class="lineno"> 8155</span> <span class="comment">WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span></div> +<div class="line"><a name="l08156"></a><span class="lineno"> 8156</span> <span class="comment">------------------------------------------------------------------------------</span></div> +<div class="line"><a name="l08157"></a><span class="lineno"> 8157</span> <span class="comment">*/</span></div> <div class="ttc" id="stb__image_8h_html_a2d9ec9850cd12aefe7641b456266a4c2"><div class="ttname"><a href="stb__image_8h.html#a2d9ec9850cd12aefe7641b456266a4c2">STBIDEF</a></div><div class="ttdeci">#define STBIDEF</div><div class="ttdef"><b>Definition:</b> stb_image.h:330</div></div> <div class="ttc" id="namespaceyage_html_ad5a9307442e5daa8810aff942564a822ad20caec3b48a1eef164cb4ca81ba2587"><div class="ttname"><a href="namespaceyage.html#ad5a9307442e5daa8810aff942564a822ad20caec3b48a1eef164cb4ca81ba2587">yage::key::L</a></div></div> <div class="ttc" id="stb__image_8h_html_acfef077febce3bc3f1f339de478f3315"><div class="ttname"><a href="stb__image_8h.html#acfef077febce3bc3f1f339de478f3315">stbi_info_from_memory</a></div><div class="ttdeci">STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)</div></div> @@ -7333,15 +8287,11 @@ $(document).ready(function(){initNavTree('stb__image_8h_source.html','');}); <div class="ttc" id="stb__image_8h_html_a23525ef2b882f3de426b47ecf8d9151b"><div class="ttname"><a href="stb__image_8h.html#a23525ef2b882f3de426b47ecf8d9151b">stbi_convert_iphone_png_to_rgb</a></div><div class="ttdeci">STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)</div></div> <div class="ttc" id="stb__image_8h_html_aaaa17a529bec51403cc23dc2e7c36d79"><div class="ttname"><a href="stb__image_8h.html#aaaa17a529bec51403cc23dc2e7c36d79">stbi_zlib_decode_malloc_guesssize</a></div><div class="ttdeci">STBIDEF char * stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen)</div></div> </div><!-- fragment --></div><!-- contents --> -</div><!-- doc-content --> <!-- start footer part --> -<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> - <ul> - <li class="navelem"><a class="el" href="dir_0a5be4b85c8e2c05f7a9f5a803f53125.html">yage</a></li><li class="navelem"><a class="el" href="dir_11841e5da2063fc5766a682aee38e289.html">core</a></li><li class="navelem"><a class="el" href="stb__image_8h.html">stb_image.h</a></li> - <li class="footer">Generated on Sat Jan 6 2018 21:19:57 for YAGE by - <a href="http://www.doxygen.org/index.html"> - <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 </li> - </ul> -</div> +<hr class="footer"/><address class="footer"><small> +Generated on Wed Jan 10 2018 18:44:07 for YAGE by  <a href="http://www.doxygen.org/index.html"> +<img class="footer" src="doxygen.png" alt="doxygen"/> +</a> 1.8.6 +</small></address> </body> </html> |