From c92fb6bebc781525e09bd38cb77f746c3b8d118c Mon Sep 17 00:00:00 2001 From: David Monniaux Date: Tue, 29 Jan 2019 21:27:37 +0100 Subject: jpeg-6b modified --- test/monniaux/jpeg-6b/djpeg.c | 616 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 616 insertions(+) create mode 100644 test/monniaux/jpeg-6b/djpeg.c (limited to 'test/monniaux/jpeg-6b/djpeg.c') diff --git a/test/monniaux/jpeg-6b/djpeg.c b/test/monniaux/jpeg-6b/djpeg.c new file mode 100644 index 00000000..e099e90a --- /dev/null +++ b/test/monniaux/jpeg-6b/djpeg.c @@ -0,0 +1,616 @@ +/* + * djpeg.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a command-line user interface for the JPEG decompressor. + * It should work on any system with Unix- or MS-DOS-style command lines. + * + * Two different command line styles are permitted, depending on the + * compile-time switch TWO_FILE_COMMANDLINE: + * djpeg [options] inputfile outputfile + * djpeg [options] [inputfile] + * In the second style, output is always to standard output, which you'd + * normally redirect to a file or pipe to some other program. Input is + * either from a named file or from standard input (typically redirected). + * The second style is convenient on Unix but is unhelpful on systems that + * don't support pipes. Also, you MUST use the first style if your system + * doesn't do binary I/O to stdin/stdout. + * To simplify script writing, the "-outfile" switch is provided. The syntax + * djpeg [options] -outfile outputfile inputfile + * works regardless of which command line style is used. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include "jversion.h" /* for version message */ + +#include /* to declare isprint() */ + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + + +/* Create the add-on message string table. */ + +#define JMESSAGE(code,string) string , + +static const char * const cdjpeg_message_table[] = { +#include "cderror.h" + NULL +}; + + +/* + * This list defines the known output image formats + * (not all of which need be supported by a given version). + * You can change the default output format by defining DEFAULT_FMT; + * indeed, you had better do so if you undefine PPM_SUPPORTED. + */ + +typedef enum { + FMT_BMP, /* BMP format (Windows flavor) */ + FMT_GIF, /* GIF format */ + FMT_OS2, /* BMP format (OS/2 flavor) */ + FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ + FMT_RLE, /* RLE format */ + FMT_TARGA, /* Targa format */ + FMT_TIFF /* TIFF format */ +} IMAGE_FORMATS; + +#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ +#define DEFAULT_FMT FMT_PPM +#endif + +static IMAGE_FORMATS requested_fmt; + + +/* + * Argument-parsing code. + * The switch parser is designed to be useful with DOS-style command line + * syntax, ie, intermixed switches and file names, where only the switches + * to the left of a given file name affect processing of that file. + * The main program in this file doesn't actually use this capability... + */ + + +static const char * progname; /* program name for error messages */ +static char * outfilename; /* for -outfile switch */ + + +LOCAL(void) +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); + fprintf(stderr, " -fast Fast, low-quality processing\n"); + fprintf(stderr, " -grayscale Force grayscale output\n"); +#ifdef IDCT_SCALING_SUPPORTED + fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", + (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); +#endif +#ifdef GIF_SUPPORTED + fprintf(stderr, " -gif Select GIF output format%s\n", + (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", + (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); +#endif +#ifdef PPM_SUPPORTED + fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", + (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); +#endif +#ifdef RLE_SUPPORTED + fprintf(stderr, " -rle Select Utah RLE output format%s\n", + (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); +#endif +#ifdef TARGA_SUPPORTED + fprintf(stderr, " -targa Select Targa output format%s\n", + (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); +#endif + fprintf(stderr, "Switches for advanced users:\n"); +#ifdef DCT_ISLOW_SUPPORTED + fprintf(stderr, " -dct int Use integer DCT method%s\n", + (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); +#endif +#ifdef DCT_IFAST_SUPPORTED + fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", + (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); +#endif +#ifdef DCT_FLOAT_SUPPORTED + fprintf(stderr, " -dct float Use floating-point DCT method%s\n", + (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); +#endif + fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); + fprintf(stderr, " -dither none Don't use dithering in quantization\n"); + fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); +#ifdef QUANT_2PASS_SUPPORTED + fprintf(stderr, " -map FILE Map to colors used in named image file\n"); +#endif + fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); +#ifdef QUANT_1PASS_SUPPORTED + fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); +#endif + fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); + fprintf(stderr, " -outfile name Specify name for output file\n"); + fprintf(stderr, " -verbose or -debug Emit debug output\n"); + exit(EXIT_FAILURE); +} + + +LOCAL(int) +parse_switches (j_decompress_ptr cinfo, int argc, char **argv, + int last_file_arg_seen, boolean for_real) +/* Parse optional switches. + * Returns argv[] index of first file-name argument (== argc if none). + * Any file names with indexes <= last_file_arg_seen are ignored; + * they have presumably been processed in a previous iteration. + * (Pass 0 for last_file_arg_seen on the first or only iteration.) + * for_real is FALSE on the first (dummy) pass; we may skip any expensive + * processing. + */ +{ + int argn; + char * arg; + + /* Set up default JPEG parameters. */ + requested_fmt = DEFAULT_FMT; /* set default output file format */ + outfilename = NULL; + cinfo->err->trace_level = 0; + + /* Scan command line options, adjust parameters */ + + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (*arg != '-') { + /* Not a switch, must be a file name argument */ + if (argn <= last_file_arg_seen) { + outfilename = NULL; /* -outfile applies to just one input file */ + continue; /* ignore this name if previously processed */ + } + break; /* else done parsing switches */ + } + arg++; /* advance past switch marker character */ + + if (keymatch(arg, "bmp", 1)) { + /* BMP output format. */ + requested_fmt = FMT_BMP; + + } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || + keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { + /* Do color quantization. */ + int val; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d", &val) != 1) + usage(); + cinfo->desired_number_of_colors = val; + cinfo->quantize_colors = TRUE; + + } else if (keymatch(arg, "dct", 2)) { + /* Select IDCT algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "int", 1)) { + cinfo->dct_method = JDCT_ISLOW; + } else if (keymatch(argv[argn], "fast", 2)) { + cinfo->dct_method = JDCT_IFAST; + } else if (keymatch(argv[argn], "float", 2)) { + cinfo->dct_method = JDCT_FLOAT; + } else + usage(); + + } else if (keymatch(arg, "dither", 2)) { + /* Select dithering algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "fs", 2)) { + cinfo->dither_mode = JDITHER_FS; + } else if (keymatch(argv[argn], "none", 2)) { + cinfo->dither_mode = JDITHER_NONE; + } else if (keymatch(argv[argn], "ordered", 2)) { + cinfo->dither_mode = JDITHER_ORDERED; + } else + usage(); + + } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { + /* Enable debug printouts. */ + /* On first -d, print version identification */ + static boolean printed_version = FALSE; + + if (! printed_version) { + fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", + JVERSION, JCOPYRIGHT); + printed_version = TRUE; + } + cinfo->err->trace_level++; + + } else if (keymatch(arg, "fast", 1)) { + /* Select recommended processing options for quick-and-dirty output. */ + cinfo->two_pass_quantize = FALSE; + cinfo->dither_mode = JDITHER_ORDERED; + if (! cinfo->quantize_colors) /* don't override an earlier -colors */ + cinfo->desired_number_of_colors = 216; + cinfo->dct_method = JDCT_FASTEST; + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "gif", 1)) { + /* GIF output format. */ + requested_fmt = FMT_GIF; + + } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { + /* Force monochrome output. */ + cinfo->out_color_space = JCS_GRAYSCALE; + + } else if (keymatch(arg, "map", 3)) { + /* Quantize to a color map taken from an input file. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (for_real) { /* too expensive to do twice! */ +#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ + FILE * mapfile; + + if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + read_color_map(cinfo, mapfile); + fclose(mapfile); + cinfo->quantize_colors = TRUE; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } + + } else if (keymatch(arg, "maxmemory", 3)) { + /* Maximum memory in Kb (or Mb with 'm'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (ch == 'm' || ch == 'M') + lval *= 1000L; + cinfo->mem->max_memory_to_use = lval * 1000L; + + } else if (keymatch(arg, "nosmooth", 3)) { + /* Suppress fancy upsampling */ + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "onepass", 3)) { + /* Use fast one-pass quantization. */ + cinfo->two_pass_quantize = FALSE; + + } else if (keymatch(arg, "os2", 3)) { + /* BMP output format (OS/2 flavor). */ + requested_fmt = FMT_OS2; + + } else if (keymatch(arg, "outfile", 4)) { + /* Set output file name. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + outfilename = argv[argn]; /* save it away for later use */ + + } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { + /* PPM/PGM output format. */ + requested_fmt = FMT_PPM; + + } else if (keymatch(arg, "rle", 1)) { + /* RLE output format. */ + requested_fmt = FMT_RLE; + + } else if (keymatch(arg, "scale", 1)) { + /* Scale the output image by a fraction M/N. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d/%d", + &cinfo->scale_num, &cinfo->scale_denom) != 2) + usage(); + + } else if (keymatch(arg, "targa", 1)) { + /* Targa output format. */ + requested_fmt = FMT_TARGA; + + } else { + usage(); /* bogus switch */ + } + } + + return argn; /* return index of next arg (file name) */ +} + + +/* + * Marker processor for COM and interesting APPn markers. + * This replaces the library's built-in processor, which just skips the marker. + * We want to print out the marker as text, to the extent possible. + * Note this code relies on a non-suspending data source. + */ + +LOCAL(unsigned int) +jpeg_getc (j_decompress_ptr cinfo) +/* Read next byte */ +{ + struct jpeg_source_mgr * datasrc = cinfo->src; + + if (datasrc->bytes_in_buffer == 0) { + if (! (*datasrc->fill_input_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + } + datasrc->bytes_in_buffer--; + return GETJOCTET(*datasrc->next_input_byte++); +} + + +METHODDEF(boolean) +print_text_marker (j_decompress_ptr cinfo) +{ + boolean traceit = (cinfo->err->trace_level >= 1); + INT32 length; + unsigned int ch; + unsigned int lastch = 0; + + length = jpeg_getc(cinfo) << 8; + length += jpeg_getc(cinfo); + length -= 2; /* discount the length word itself */ + + if (traceit) { + if (cinfo->unread_marker == JPEG_COM) + fprintf(stderr, "Comment, length %ld:\n", (long) length); + else /* assume it is an APPn otherwise */ + fprintf(stderr, "APP%d, length %ld:\n", + cinfo->unread_marker - JPEG_APP0, (long) length); + } + + while (--length >= 0) { + ch = jpeg_getc(cinfo); + if (traceit) { + /* Emit the character in a readable form. + * Nonprintables are converted to \nnn form, + * while \ is converted to \\. + * Newlines in CR, CR/LF, or LF form will be printed as one newline. + */ + if (ch == '\r') { + fprintf(stderr, "\n"); + } else if (ch == '\n') { + if (lastch != '\r') + fprintf(stderr, "\n"); + } else if (ch == '\\') { + fprintf(stderr, "\\\\"); + } else if (isprint(ch)) { + putc(ch, stderr); + } else { + fprintf(stderr, "\\%03o", ch); + } + lastch = ch; + } + } + + if (traceit) + fprintf(stderr, "\n"); + + return TRUE; +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + struct jpeg_decompress_struct cinfo; + struct jpeg_error_mgr jerr; +#ifdef PROGRESS_REPORT + struct cdjpeg_progress_mgr progress; +#endif + int file_index; + djpeg_dest_ptr dest_mgr = NULL; + FILE * input_file; + FILE * output_file; + JDIMENSION num_scanlines; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "djpeg"; /* in case C library doesn't provide it */ + + /* Initialize the JPEG decompression object with default error handling. */ + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_decompress(&cinfo); + /* Add some application-specific error messages (from cderror.h) */ + jerr.addon_message_table = cdjpeg_message_table; + jerr.first_addon_message = JMSG_FIRSTADDONCODE; + jerr.last_addon_message = JMSG_LASTADDONCODE; + + /* Insert custom marker processor for COM and APP12. + * APP12 is used by some digital camera makers for textual info, + * so we provide the ability to display it as text. + * If you like, additional APPn marker types can be selected for display, + * but don't try to override APP0 or APP14 this way (see libjpeg.doc). + */ + jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); + jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); + + /* Now safe to enable signal catcher. */ +#ifdef NEED_SIGNAL_CATCHER + enable_signal_catcher((j_common_ptr) &cinfo); +#endif + + /* Scan command line to find file names. */ + /* It is convenient to use just one switch-parsing routine, but the switch + * values read here are ignored; we will rescan the switches after opening + * the input file. + * (Exception: tracing level set here controls verbosity for COM markers + * found during jpeg_read_header...) + */ + + file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); + +#ifdef TWO_FILE_COMMANDLINE + /* Must have either -outfile switch or explicit output file name */ + if (outfilename == NULL) { + if (file_index != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + outfilename = argv[file_index+1]; + } else { + if (file_index != argc-1) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + } +#else + /* Unix style: expect zero or one file name */ + if (file_index < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } +#endif /* TWO_FILE_COMMANDLINE */ + + /* Open the input file. */ + if (file_index < argc) { + if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ + input_file = read_stdin(); + } + + /* Open the output file. */ + if (outfilename != NULL) { + if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, outfilename); + exit(EXIT_FAILURE); + } + } else { + /* default output file is stdout */ + output_file = write_stdout(); + } + +#ifdef PROGRESS_REPORT + start_progress_monitor((j_common_ptr) &cinfo, &progress); +#endif + + /* Specify data source for decompression */ + jpeg_stdio_src(&cinfo, input_file); + + /* Read file header, set default decompression parameters */ + (void) jpeg_read_header(&cinfo, TRUE); + + /* Adjust default decompression parameters by re-parsing the options */ + file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); + + /* Initialize the output module now to let it override any crucial + * option settings (for instance, GIF wants to force color quantization). + */ + switch (requested_fmt) { +#ifdef BMP_SUPPORTED + case FMT_BMP: + dest_mgr = jinit_write_bmp(&cinfo, FALSE); + break; + case FMT_OS2: + dest_mgr = jinit_write_bmp(&cinfo, TRUE); + break; +#endif +#ifdef GIF_SUPPORTED + case FMT_GIF: + dest_mgr = jinit_write_gif(&cinfo); + break; +#endif +#ifdef PPM_SUPPORTED + case FMT_PPM: + dest_mgr = jinit_write_ppm(&cinfo); + break; +#endif +#ifdef RLE_SUPPORTED + case FMT_RLE: + dest_mgr = jinit_write_rle(&cinfo); + break; +#endif +#ifdef TARGA_SUPPORTED + case FMT_TARGA: + dest_mgr = jinit_write_targa(&cinfo); + break; +#endif + default: + ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); + break; + } + dest_mgr->output_file = output_file; + + /* Start decompressor */ + (void) jpeg_start_decompress(&cinfo); + + /* Write output file header */ + (*dest_mgr->start_output) (&cinfo, dest_mgr); + + /* Process data */ + while (cinfo.output_scanline < cinfo.output_height) { + num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, + dest_mgr->buffer_height); + (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); + } + +#ifdef PROGRESS_REPORT + /* Hack: count final pass as done in case finish_output does an extra pass. + * The library won't have updated completed_passes. + */ + progress.pub.completed_passes = progress.pub.total_passes; +#endif + + /* Finish decompression and release memory. + * I must do it in this order because output module has allocated memory + * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. + */ + (*dest_mgr->finish_output) (&cinfo, dest_mgr); + (void) jpeg_finish_decompress(&cinfo); + jpeg_destroy_decompress(&cinfo); + + /* Close files, if we opened them */ + if (input_file != stdin) + fclose(input_file); + if (output_file != stdout) + fclose(output_file); + +#ifdef PROGRESS_REPORT + end_progress_monitor((j_common_ptr) &cinfo); +#endif + + /* All done. */ + exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} -- cgit From 9d54081bf1f8dafe9ae71f3e3b0dd10ef7b931c2 Mon Sep 17 00:00:00 2001 From: David Monniaux Date: Fri, 1 Feb 2019 18:28:25 +0100 Subject: fix various divisions, tail calls etc. --- test/monniaux/jpeg-6b/djpeg.c | 1232 ++++++++++++++++++++--------------------- 1 file changed, 616 insertions(+), 616 deletions(-) (limited to 'test/monniaux/jpeg-6b/djpeg.c') diff --git a/test/monniaux/jpeg-6b/djpeg.c b/test/monniaux/jpeg-6b/djpeg.c index e099e90a..a63523c5 100644 --- a/test/monniaux/jpeg-6b/djpeg.c +++ b/test/monniaux/jpeg-6b/djpeg.c @@ -1,616 +1,616 @@ -/* - * djpeg.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for the JPEG decompressor. - * It should work on any system with Unix- or MS-DOS-style command lines. - * - * Two different command line styles are permitted, depending on the - * compile-time switch TWO_FILE_COMMANDLINE: - * djpeg [options] inputfile outputfile - * djpeg [options] [inputfile] - * In the second style, output is always to standard output, which you'd - * normally redirect to a file or pipe to some other program. Input is - * either from a named file or from standard input (typically redirected). - * The second style is convenient on Unix but is unhelpful on systems that - * don't support pipes. Also, you MUST use the first style if your system - * doesn't do binary I/O to stdin/stdout. - * To simplify script writing, the "-outfile" switch is provided. The syntax - * djpeg [options] -outfile outputfile inputfile - * works regardless of which command line style is used. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "jversion.h" /* for version message */ - -#include /* to declare isprint() */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* Create the add-on message string table. */ - -#define JMESSAGE(code,string) string , - -static const char * const cdjpeg_message_table[] = { -#include "cderror.h" - NULL -}; - - -/* - * This list defines the known output image formats - * (not all of which need be supported by a given version). - * You can change the default output format by defining DEFAULT_FMT; - * indeed, you had better do so if you undefine PPM_SUPPORTED. - */ - -typedef enum { - FMT_BMP, /* BMP format (Windows flavor) */ - FMT_GIF, /* GIF format */ - FMT_OS2, /* BMP format (OS/2 flavor) */ - FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ - FMT_RLE, /* RLE format */ - FMT_TARGA, /* Targa format */ - FMT_TIFF /* TIFF format */ -} IMAGE_FORMATS; - -#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ -#define DEFAULT_FMT FMT_PPM -#endif - -static IMAGE_FORMATS requested_fmt; - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); - fprintf(stderr, " -fast Fast, low-quality processing\n"); - fprintf(stderr, " -grayscale Force grayscale output\n"); -#ifdef IDCT_SCALING_SUPPORTED - fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", - (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); -#endif -#ifdef GIF_SUPPORTED - fprintf(stderr, " -gif Select GIF output format%s\n", - (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", - (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); -#endif -#ifdef PPM_SUPPORTED - fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", - (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); -#endif -#ifdef RLE_SUPPORTED - fprintf(stderr, " -rle Select Utah RLE output format%s\n", - (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); -#endif -#ifdef TARGA_SUPPORTED - fprintf(stderr, " -targa Select Targa output format%s\n", - (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef DCT_ISLOW_SUPPORTED - fprintf(stderr, " -dct int Use integer DCT method%s\n", - (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); -#endif -#ifdef DCT_IFAST_SUPPORTED - fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", - (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); -#endif -#ifdef DCT_FLOAT_SUPPORTED - fprintf(stderr, " -dct float Use floating-point DCT method%s\n", - (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); -#endif - fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); - fprintf(stderr, " -dither none Don't use dithering in quantization\n"); - fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); -#ifdef QUANT_2PASS_SUPPORTED - fprintf(stderr, " -map FILE Map to colors used in named image file\n"); -#endif - fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); -#ifdef QUANT_1PASS_SUPPORTED - fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); -#endif - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - exit(EXIT_FAILURE); -} - - -LOCAL(int) -parse_switches (j_decompress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - - /* Set up default JPEG parameters. */ - requested_fmt = DEFAULT_FMT; /* set default output file format */ - outfilename = NULL; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "bmp", 1)) { - /* BMP output format. */ - requested_fmt = FMT_BMP; - - } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || - keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { - /* Do color quantization. */ - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - cinfo->desired_number_of_colors = val; - cinfo->quantize_colors = TRUE; - - } else if (keymatch(arg, "dct", 2)) { - /* Select IDCT algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "int", 1)) { - cinfo->dct_method = JDCT_ISLOW; - } else if (keymatch(argv[argn], "fast", 2)) { - cinfo->dct_method = JDCT_IFAST; - } else if (keymatch(argv[argn], "float", 2)) { - cinfo->dct_method = JDCT_FLOAT; - } else - usage(); - - } else if (keymatch(arg, "dither", 2)) { - /* Select dithering algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "fs", 2)) { - cinfo->dither_mode = JDITHER_FS; - } else if (keymatch(argv[argn], "none", 2)) { - cinfo->dither_mode = JDITHER_NONE; - } else if (keymatch(argv[argn], "ordered", 2)) { - cinfo->dither_mode = JDITHER_ORDERED; - } else - usage(); - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "fast", 1)) { - /* Select recommended processing options for quick-and-dirty output. */ - cinfo->two_pass_quantize = FALSE; - cinfo->dither_mode = JDITHER_ORDERED; - if (! cinfo->quantize_colors) /* don't override an earlier -colors */ - cinfo->desired_number_of_colors = 216; - cinfo->dct_method = JDCT_FASTEST; - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "gif", 1)) { - /* GIF output format. */ - requested_fmt = FMT_GIF; - - } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { - /* Force monochrome output. */ - cinfo->out_color_space = JCS_GRAYSCALE; - - } else if (keymatch(arg, "map", 3)) { - /* Quantize to a color map taken from an input file. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (for_real) { /* too expensive to do twice! */ -#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ - FILE * mapfile; - - if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - read_color_map(cinfo, mapfile); - fclose(mapfile); - cinfo->quantize_colors = TRUE; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "nosmooth", 3)) { - /* Suppress fancy upsampling */ - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "onepass", 3)) { - /* Use fast one-pass quantization. */ - cinfo->two_pass_quantize = FALSE; - - } else if (keymatch(arg, "os2", 3)) { - /* BMP output format (OS/2 flavor). */ - requested_fmt = FMT_OS2; - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { - /* PPM/PGM output format. */ - requested_fmt = FMT_PPM; - - } else if (keymatch(arg, "rle", 1)) { - /* RLE output format. */ - requested_fmt = FMT_RLE; - - } else if (keymatch(arg, "scale", 1)) { - /* Scale the output image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d/%d", - &cinfo->scale_num, &cinfo->scale_denom) != 2) - usage(); - - } else if (keymatch(arg, "targa", 1)) { - /* Targa output format. */ - requested_fmt = FMT_TARGA; - - } else { - usage(); /* bogus switch */ - } - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * Marker processor for COM and interesting APPn markers. - * This replaces the library's built-in processor, which just skips the marker. - * We want to print out the marker as text, to the extent possible. - * Note this code relies on a non-suspending data source. - */ - -LOCAL(unsigned int) -jpeg_getc (j_decompress_ptr cinfo) -/* Read next byte */ -{ - struct jpeg_source_mgr * datasrc = cinfo->src; - - if (datasrc->bytes_in_buffer == 0) { - if (! (*datasrc->fill_input_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } - datasrc->bytes_in_buffer--; - return GETJOCTET(*datasrc->next_input_byte++); -} - - -METHODDEF(boolean) -print_text_marker (j_decompress_ptr cinfo) -{ - boolean traceit = (cinfo->err->trace_level >= 1); - INT32 length; - unsigned int ch; - unsigned int lastch = 0; - - length = jpeg_getc(cinfo) << 8; - length += jpeg_getc(cinfo); - length -= 2; /* discount the length word itself */ - - if (traceit) { - if (cinfo->unread_marker == JPEG_COM) - fprintf(stderr, "Comment, length %ld:\n", (long) length); - else /* assume it is an APPn otherwise */ - fprintf(stderr, "APP%d, length %ld:\n", - cinfo->unread_marker - JPEG_APP0, (long) length); - } - - while (--length >= 0) { - ch = jpeg_getc(cinfo); - if (traceit) { - /* Emit the character in a readable form. - * Nonprintables are converted to \nnn form, - * while \ is converted to \\. - * Newlines in CR, CR/LF, or LF form will be printed as one newline. - */ - if (ch == '\r') { - fprintf(stderr, "\n"); - } else if (ch == '\n') { - if (lastch != '\r') - fprintf(stderr, "\n"); - } else if (ch == '\\') { - fprintf(stderr, "\\\\"); - } else if (isprint(ch)) { - putc(ch, stderr); - } else { - fprintf(stderr, "\\%03o", ch); - } - lastch = ch; - } - } - - if (traceit) - fprintf(stderr, "\n"); - - return TRUE; -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - int file_index; - djpeg_dest_ptr dest_mgr = NULL; - FILE * input_file; - FILE * output_file; - JDIMENSION num_scanlines; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "djpeg"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG decompression object with default error handling. */ - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - /* Add some application-specific error messages (from cderror.h) */ - jerr.addon_message_table = cdjpeg_message_table; - jerr.first_addon_message = JMSG_FIRSTADDONCODE; - jerr.last_addon_message = JMSG_LASTADDONCODE; - - /* Insert custom marker processor for COM and APP12. - * APP12 is used by some digital camera makers for textual info, - * so we provide the ability to display it as text. - * If you like, additional APPn marker types can be selected for display, - * but don't try to override APP0 or APP14 this way (see libjpeg.doc). - */ - jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); - jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); - - /* Now safe to enable signal catcher. */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &cinfo); -#endif - - /* Scan command line to find file names. */ - /* It is convenient to use just one switch-parsing routine, but the switch - * values read here are ignored; we will rescan the switches after opening - * the input file. - * (Exception: tracing level set here controls verbosity for COM markers - * found during jpeg_read_header...) - */ - - file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - input_file = read_stdin(); - } - - /* Open the output file. */ - if (outfilename != NULL) { - if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - output_file = write_stdout(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &cinfo, &progress); -#endif - - /* Specify data source for decompression */ - jpeg_stdio_src(&cinfo, input_file); - - /* Read file header, set default decompression parameters */ - (void) jpeg_read_header(&cinfo, TRUE); - - /* Adjust default decompression parameters by re-parsing the options */ - file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); - - /* Initialize the output module now to let it override any crucial - * option settings (for instance, GIF wants to force color quantization). - */ - switch (requested_fmt) { -#ifdef BMP_SUPPORTED - case FMT_BMP: - dest_mgr = jinit_write_bmp(&cinfo, FALSE); - break; - case FMT_OS2: - dest_mgr = jinit_write_bmp(&cinfo, TRUE); - break; -#endif -#ifdef GIF_SUPPORTED - case FMT_GIF: - dest_mgr = jinit_write_gif(&cinfo); - break; -#endif -#ifdef PPM_SUPPORTED - case FMT_PPM: - dest_mgr = jinit_write_ppm(&cinfo); - break; -#endif -#ifdef RLE_SUPPORTED - case FMT_RLE: - dest_mgr = jinit_write_rle(&cinfo); - break; -#endif -#ifdef TARGA_SUPPORTED - case FMT_TARGA: - dest_mgr = jinit_write_targa(&cinfo); - break; -#endif - default: - ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); - break; - } - dest_mgr->output_file = output_file; - - /* Start decompressor */ - (void) jpeg_start_decompress(&cinfo); - - /* Write output file header */ - (*dest_mgr->start_output) (&cinfo, dest_mgr); - - /* Process data */ - while (cinfo.output_scanline < cinfo.output_height) { - num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, - dest_mgr->buffer_height); - (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); - } - -#ifdef PROGRESS_REPORT - /* Hack: count final pass as done in case finish_output does an extra pass. - * The library won't have updated completed_passes. - */ - progress.pub.completed_passes = progress.pub.total_passes; -#endif - - /* Finish decompression and release memory. - * I must do it in this order because output module has allocated memory - * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. - */ - (*dest_mgr->finish_output) (&cinfo, dest_mgr); - (void) jpeg_finish_decompress(&cinfo); - jpeg_destroy_decompress(&cinfo); - - /* Close files, if we opened them */ - if (input_file != stdin) - fclose(input_file); - if (output_file != stdout) - fclose(output_file); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &cinfo); -#endif - - /* All done. */ - exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} +/* + * djpeg.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a command-line user interface for the JPEG decompressor. + * It should work on any system with Unix- or MS-DOS-style command lines. + * + * Two different command line styles are permitted, depending on the + * compile-time switch TWO_FILE_COMMANDLINE: + * djpeg [options] inputfile outputfile + * djpeg [options] [inputfile] + * In the second style, output is always to standard output, which you'd + * normally redirect to a file or pipe to some other program. Input is + * either from a named file or from standard input (typically redirected). + * The second style is convenient on Unix but is unhelpful on systems that + * don't support pipes. Also, you MUST use the first style if your system + * doesn't do binary I/O to stdin/stdout. + * To simplify script writing, the "-outfile" switch is provided. The syntax + * djpeg [options] -outfile outputfile inputfile + * works regardless of which command line style is used. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include "jversion.h" /* for version message */ + +#include /* to declare isprint() */ + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + + +/* Create the add-on message string table. */ + +#define JMESSAGE(code,string) string , + +static const char * const cdjpeg_message_table[] = { +#include "cderror.h" + NULL +}; + + +/* + * This list defines the known output image formats + * (not all of which need be supported by a given version). + * You can change the default output format by defining DEFAULT_FMT; + * indeed, you had better do so if you undefine PPM_SUPPORTED. + */ + +typedef enum { + FMT_BMP, /* BMP format (Windows flavor) */ + FMT_GIF, /* GIF format */ + FMT_OS2, /* BMP format (OS/2 flavor) */ + FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ + FMT_RLE, /* RLE format */ + FMT_TARGA, /* Targa format */ + FMT_TIFF /* TIFF format */ +} IMAGE_FORMATS; + +#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ +#define DEFAULT_FMT FMT_PPM +#endif + +static IMAGE_FORMATS requested_fmt; + + +/* + * Argument-parsing code. + * The switch parser is designed to be useful with DOS-style command line + * syntax, ie, intermixed switches and file names, where only the switches + * to the left of a given file name affect processing of that file. + * The main program in this file doesn't actually use this capability... + */ + + +static const char * progname; /* program name for error messages */ +static char * outfilename; /* for -outfile switch */ + + +LOCAL(void) +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); + fprintf(stderr, " -fast Fast, low-quality processing\n"); + fprintf(stderr, " -grayscale Force grayscale output\n"); +#ifdef IDCT_SCALING_SUPPORTED + fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", + (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); +#endif +#ifdef GIF_SUPPORTED + fprintf(stderr, " -gif Select GIF output format%s\n", + (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", + (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); +#endif +#ifdef PPM_SUPPORTED + fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", + (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); +#endif +#ifdef RLE_SUPPORTED + fprintf(stderr, " -rle Select Utah RLE output format%s\n", + (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); +#endif +#ifdef TARGA_SUPPORTED + fprintf(stderr, " -targa Select Targa output format%s\n", + (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); +#endif + fprintf(stderr, "Switches for advanced users:\n"); +#ifdef DCT_ISLOW_SUPPORTED + fprintf(stderr, " -dct int Use integer DCT method%s\n", + (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); +#endif +#ifdef DCT_IFAST_SUPPORTED + fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", + (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); +#endif +#ifdef DCT_FLOAT_SUPPORTED + fprintf(stderr, " -dct float Use floating-point DCT method%s\n", + (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); +#endif + fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); + fprintf(stderr, " -dither none Don't use dithering in quantization\n"); + fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); +#ifdef QUANT_2PASS_SUPPORTED + fprintf(stderr, " -map FILE Map to colors used in named image file\n"); +#endif + fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); +#ifdef QUANT_1PASS_SUPPORTED + fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); +#endif + fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); + fprintf(stderr, " -outfile name Specify name for output file\n"); + fprintf(stderr, " -verbose or -debug Emit debug output\n"); + exit(EXIT_FAILURE); +} + + +LOCAL(int) +parse_switches (j_decompress_ptr cinfo, int argc, char **argv, + int last_file_arg_seen, boolean for_real) +/* Parse optional switches. + * Returns argv[] index of first file-name argument (== argc if none). + * Any file names with indexes <= last_file_arg_seen are ignored; + * they have presumably been processed in a previous iteration. + * (Pass 0 for last_file_arg_seen on the first or only iteration.) + * for_real is FALSE on the first (dummy) pass; we may skip any expensive + * processing. + */ +{ + int argn; + char * arg; + + /* Set up default JPEG parameters. */ + requested_fmt = DEFAULT_FMT; /* set default output file format */ + outfilename = NULL; + cinfo->err->trace_level = 0; + + /* Scan command line options, adjust parameters */ + + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (*arg != '-') { + /* Not a switch, must be a file name argument */ + if (argn <= last_file_arg_seen) { + outfilename = NULL; /* -outfile applies to just one input file */ + continue; /* ignore this name if previously processed */ + } + break; /* else done parsing switches */ + } + arg++; /* advance past switch marker character */ + + if (keymatch(arg, "bmp", 1)) { + /* BMP output format. */ + requested_fmt = FMT_BMP; + + } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || + keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { + /* Do color quantization. */ + int val; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d", &val) != 1) + usage(); + cinfo->desired_number_of_colors = val; + cinfo->quantize_colors = TRUE; + + } else if (keymatch(arg, "dct", 2)) { + /* Select IDCT algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "int", 1)) { + cinfo->dct_method = JDCT_ISLOW; + } else if (keymatch(argv[argn], "fast", 2)) { + cinfo->dct_method = JDCT_IFAST; + } else if (keymatch(argv[argn], "float", 2)) { + cinfo->dct_method = JDCT_FLOAT; + } else + usage(); + + } else if (keymatch(arg, "dither", 2)) { + /* Select dithering algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "fs", 2)) { + cinfo->dither_mode = JDITHER_FS; + } else if (keymatch(argv[argn], "none", 2)) { + cinfo->dither_mode = JDITHER_NONE; + } else if (keymatch(argv[argn], "ordered", 2)) { + cinfo->dither_mode = JDITHER_ORDERED; + } else + usage(); + + } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { + /* Enable debug printouts. */ + /* On first -d, print version identification */ + static boolean printed_version = FALSE; + + if (! printed_version) { + fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", + JVERSION, JCOPYRIGHT); + printed_version = TRUE; + } + cinfo->err->trace_level++; + + } else if (keymatch(arg, "fast", 1)) { + /* Select recommended processing options for quick-and-dirty output. */ + cinfo->two_pass_quantize = FALSE; + cinfo->dither_mode = JDITHER_ORDERED; + if (! cinfo->quantize_colors) /* don't override an earlier -colors */ + cinfo->desired_number_of_colors = 216; + cinfo->dct_method = JDCT_FASTEST; + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "gif", 1)) { + /* GIF output format. */ + requested_fmt = FMT_GIF; + + } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { + /* Force monochrome output. */ + cinfo->out_color_space = JCS_GRAYSCALE; + + } else if (keymatch(arg, "map", 3)) { + /* Quantize to a color map taken from an input file. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (for_real) { /* too expensive to do twice! */ +#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ + FILE * mapfile; + + if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + read_color_map(cinfo, mapfile); + fclose(mapfile); + cinfo->quantize_colors = TRUE; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } + + } else if (keymatch(arg, "maxmemory", 3)) { + /* Maximum memory in Kb (or Mb with 'm'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (ch == 'm' || ch == 'M') + lval *= 1000L; + cinfo->mem->max_memory_to_use = lval * 1000L; + + } else if (keymatch(arg, "nosmooth", 3)) { + /* Suppress fancy upsampling */ + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "onepass", 3)) { + /* Use fast one-pass quantization. */ + cinfo->two_pass_quantize = FALSE; + + } else if (keymatch(arg, "os2", 3)) { + /* BMP output format (OS/2 flavor). */ + requested_fmt = FMT_OS2; + + } else if (keymatch(arg, "outfile", 4)) { + /* Set output file name. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + outfilename = argv[argn]; /* save it away for later use */ + + } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { + /* PPM/PGM output format. */ + requested_fmt = FMT_PPM; + + } else if (keymatch(arg, "rle", 1)) { + /* RLE output format. */ + requested_fmt = FMT_RLE; + + } else if (keymatch(arg, "scale", 1)) { + /* Scale the output image by a fraction M/N. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d/%d", + &cinfo->scale_num, &cinfo->scale_denom) != 2) + usage(); + + } else if (keymatch(arg, "targa", 1)) { + /* Targa output format. */ + requested_fmt = FMT_TARGA; + + } else { + usage(); /* bogus switch */ + } + } + + return argn; /* return index of next arg (file name) */ +} + + +/* + * Marker processor for COM and interesting APPn markers. + * This replaces the library's built-in processor, which just skips the marker. + * We want to print out the marker as text, to the extent possible. + * Note this code relies on a non-suspending data source. + */ + +LOCAL(unsigned int) +jpeg_getc (j_decompress_ptr cinfo) +/* Read next byte */ +{ + struct jpeg_source_mgr * datasrc = cinfo->src; + + if (datasrc->bytes_in_buffer == 0) { + if (! (*datasrc->fill_input_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + } + datasrc->bytes_in_buffer--; + return GETJOCTET(*datasrc->next_input_byte++); +} + + +METHODDEF(boolean) +print_text_marker (j_decompress_ptr cinfo) +{ + boolean traceit = (cinfo->err->trace_level >= 1); + INT32 length; + unsigned int ch; + unsigned int lastch = 0; + + length = jpeg_getc(cinfo) << 8; + length += jpeg_getc(cinfo); + length -= 2; /* discount the length word itself */ + + if (traceit) { + if (cinfo->unread_marker == JPEG_COM) + fprintf(stderr, "Comment, length %ld:\n", (long) length); + else /* assume it is an APPn otherwise */ + fprintf(stderr, "APP%d, length %ld:\n", + cinfo->unread_marker - JPEG_APP0, (long) length); + } + + while (--length >= 0) { + ch = jpeg_getc(cinfo); + if (traceit) { + /* Emit the character in a readable form. + * Nonprintables are converted to \nnn form, + * while \ is converted to \\. + * Newlines in CR, CR/LF, or LF form will be printed as one newline. + */ + if (ch == '\r') { + fprintf(stderr, "\n"); + } else if (ch == '\n') { + if (lastch != '\r') + fprintf(stderr, "\n"); + } else if (ch == '\\') { + fprintf(stderr, "\\\\"); + } else if (isprint(ch)) { + putc(ch, stderr); + } else { + fprintf(stderr, "\\%03o", ch); + } + lastch = ch; + } + } + + if (traceit) + fprintf(stderr, "\n"); + + return TRUE; +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + struct jpeg_decompress_struct cinfo; + struct jpeg_error_mgr jerr; +#ifdef PROGRESS_REPORT + struct cdjpeg_progress_mgr progress; +#endif + int file_index; + djpeg_dest_ptr dest_mgr = NULL; + FILE * input_file; + FILE * output_file; + JDIMENSION num_scanlines; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "djpeg"; /* in case C library doesn't provide it */ + + /* Initialize the JPEG decompression object with default error handling. */ + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_decompress(&cinfo); + /* Add some application-specific error messages (from cderror.h) */ + jerr.addon_message_table = cdjpeg_message_table; + jerr.first_addon_message = JMSG_FIRSTADDONCODE; + jerr.last_addon_message = JMSG_LASTADDONCODE; + + /* Insert custom marker processor for COM and APP12. + * APP12 is used by some digital camera makers for textual info, + * so we provide the ability to display it as text. + * If you like, additional APPn marker types can be selected for display, + * but don't try to override APP0 or APP14 this way (see libjpeg.doc). + */ + jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); + jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); + + /* Now safe to enable signal catcher. */ +#ifdef NEED_SIGNAL_CATCHER + enable_signal_catcher((j_common_ptr) &cinfo); +#endif + + /* Scan command line to find file names. */ + /* It is convenient to use just one switch-parsing routine, but the switch + * values read here are ignored; we will rescan the switches after opening + * the input file. + * (Exception: tracing level set here controls verbosity for COM markers + * found during jpeg_read_header...) + */ + + file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); + +#ifdef TWO_FILE_COMMANDLINE + /* Must have either -outfile switch or explicit output file name */ + if (outfilename == NULL) { + if (file_index != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + outfilename = argv[file_index+1]; + } else { + if (file_index != argc-1) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + } +#else + /* Unix style: expect zero or one file name */ + if (file_index < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } +#endif /* TWO_FILE_COMMANDLINE */ + + /* Open the input file. */ + if (file_index < argc) { + if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ + input_file = read_stdin(); + } + + /* Open the output file. */ + if (outfilename != NULL) { + if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, outfilename); + exit(EXIT_FAILURE); + } + } else { + /* default output file is stdout */ + output_file = write_stdout(); + } + +#ifdef PROGRESS_REPORT + start_progress_monitor((j_common_ptr) &cinfo, &progress); +#endif + + /* Specify data source for decompression */ + jpeg_stdio_src(&cinfo, input_file); + + /* Read file header, set default decompression parameters */ + (void) jpeg_read_header(&cinfo, TRUE); + + /* Adjust default decompression parameters by re-parsing the options */ + file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); + + /* Initialize the output module now to let it override any crucial + * option settings (for instance, GIF wants to force color quantization). + */ + switch (requested_fmt) { +#ifdef BMP_SUPPORTED + case FMT_BMP: + dest_mgr = jinit_write_bmp(&cinfo, FALSE); + break; + case FMT_OS2: + dest_mgr = jinit_write_bmp(&cinfo, TRUE); + break; +#endif +#ifdef GIF_SUPPORTED + case FMT_GIF: + dest_mgr = jinit_write_gif(&cinfo); + break; +#endif +#ifdef PPM_SUPPORTED + case FMT_PPM: + dest_mgr = jinit_write_ppm(&cinfo); + break; +#endif +#ifdef RLE_SUPPORTED + case FMT_RLE: + dest_mgr = jinit_write_rle(&cinfo); + break; +#endif +#ifdef TARGA_SUPPORTED + case FMT_TARGA: + dest_mgr = jinit_write_targa(&cinfo); + break; +#endif + default: + ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); + break; + } + dest_mgr->output_file = output_file; + + /* Start decompressor */ + (void) jpeg_start_decompress(&cinfo); + + /* Write output file header */ + (*dest_mgr->start_output) (&cinfo, dest_mgr); + + /* Process data */ + while (cinfo.output_scanline < cinfo.output_height) { + num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, + dest_mgr->buffer_height); + (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); + } + +#ifdef PROGRESS_REPORT + /* Hack: count final pass as done in case finish_output does an extra pass. + * The library won't have updated completed_passes. + */ + progress.pub.completed_passes = progress.pub.total_passes; +#endif + + /* Finish decompression and release memory. + * I must do it in this order because output module has allocated memory + * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. + */ + (*dest_mgr->finish_output) (&cinfo, dest_mgr); + (void) jpeg_finish_decompress(&cinfo); + jpeg_destroy_decompress(&cinfo); + + /* Close files, if we opened them */ + if (input_file != stdin) + fclose(input_file); + if (output_file != stdout) + fclose(output_file); + +#ifdef PROGRESS_REPORT + end_progress_monitor((j_common_ptr) &cinfo); +#endif + + /* All done. */ + exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} -- cgit From 09faeee21a7d72eea8fc56f9ac505f01005d6cb5 Mon Sep 17 00:00:00 2001 From: David Monniaux Date: Wed, 20 Mar 2019 13:20:35 +0100 Subject: use the original source codes --- test/monniaux/jpeg-6b/djpeg.c | 1232 ++++++++++++++++++++--------------------- 1 file changed, 616 insertions(+), 616 deletions(-) (limited to 'test/monniaux/jpeg-6b/djpeg.c') diff --git a/test/monniaux/jpeg-6b/djpeg.c b/test/monniaux/jpeg-6b/djpeg.c index a63523c5..e099e90a 100644 --- a/test/monniaux/jpeg-6b/djpeg.c +++ b/test/monniaux/jpeg-6b/djpeg.c @@ -1,616 +1,616 @@ -/* - * djpeg.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for the JPEG decompressor. - * It should work on any system with Unix- or MS-DOS-style command lines. - * - * Two different command line styles are permitted, depending on the - * compile-time switch TWO_FILE_COMMANDLINE: - * djpeg [options] inputfile outputfile - * djpeg [options] [inputfile] - * In the second style, output is always to standard output, which you'd - * normally redirect to a file or pipe to some other program. Input is - * either from a named file or from standard input (typically redirected). - * The second style is convenient on Unix but is unhelpful on systems that - * don't support pipes. Also, you MUST use the first style if your system - * doesn't do binary I/O to stdin/stdout. - * To simplify script writing, the "-outfile" switch is provided. The syntax - * djpeg [options] -outfile outputfile inputfile - * works regardless of which command line style is used. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "jversion.h" /* for version message */ - -#include /* to declare isprint() */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* Create the add-on message string table. */ - -#define JMESSAGE(code,string) string , - -static const char * const cdjpeg_message_table[] = { -#include "cderror.h" - NULL -}; - - -/* - * This list defines the known output image formats - * (not all of which need be supported by a given version). - * You can change the default output format by defining DEFAULT_FMT; - * indeed, you had better do so if you undefine PPM_SUPPORTED. - */ - -typedef enum { - FMT_BMP, /* BMP format (Windows flavor) */ - FMT_GIF, /* GIF format */ - FMT_OS2, /* BMP format (OS/2 flavor) */ - FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ - FMT_RLE, /* RLE format */ - FMT_TARGA, /* Targa format */ - FMT_TIFF /* TIFF format */ -} IMAGE_FORMATS; - -#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ -#define DEFAULT_FMT FMT_PPM -#endif - -static IMAGE_FORMATS requested_fmt; - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); - fprintf(stderr, " -fast Fast, low-quality processing\n"); - fprintf(stderr, " -grayscale Force grayscale output\n"); -#ifdef IDCT_SCALING_SUPPORTED - fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", - (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); -#endif -#ifdef GIF_SUPPORTED - fprintf(stderr, " -gif Select GIF output format%s\n", - (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", - (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); -#endif -#ifdef PPM_SUPPORTED - fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", - (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); -#endif -#ifdef RLE_SUPPORTED - fprintf(stderr, " -rle Select Utah RLE output format%s\n", - (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); -#endif -#ifdef TARGA_SUPPORTED - fprintf(stderr, " -targa Select Targa output format%s\n", - (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef DCT_ISLOW_SUPPORTED - fprintf(stderr, " -dct int Use integer DCT method%s\n", - (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); -#endif -#ifdef DCT_IFAST_SUPPORTED - fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", - (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); -#endif -#ifdef DCT_FLOAT_SUPPORTED - fprintf(stderr, " -dct float Use floating-point DCT method%s\n", - (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); -#endif - fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); - fprintf(stderr, " -dither none Don't use dithering in quantization\n"); - fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); -#ifdef QUANT_2PASS_SUPPORTED - fprintf(stderr, " -map FILE Map to colors used in named image file\n"); -#endif - fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); -#ifdef QUANT_1PASS_SUPPORTED - fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); -#endif - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - exit(EXIT_FAILURE); -} - - -LOCAL(int) -parse_switches (j_decompress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - - /* Set up default JPEG parameters. */ - requested_fmt = DEFAULT_FMT; /* set default output file format */ - outfilename = NULL; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "bmp", 1)) { - /* BMP output format. */ - requested_fmt = FMT_BMP; - - } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || - keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { - /* Do color quantization. */ - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - cinfo->desired_number_of_colors = val; - cinfo->quantize_colors = TRUE; - - } else if (keymatch(arg, "dct", 2)) { - /* Select IDCT algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "int", 1)) { - cinfo->dct_method = JDCT_ISLOW; - } else if (keymatch(argv[argn], "fast", 2)) { - cinfo->dct_method = JDCT_IFAST; - } else if (keymatch(argv[argn], "float", 2)) { - cinfo->dct_method = JDCT_FLOAT; - } else - usage(); - - } else if (keymatch(arg, "dither", 2)) { - /* Select dithering algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "fs", 2)) { - cinfo->dither_mode = JDITHER_FS; - } else if (keymatch(argv[argn], "none", 2)) { - cinfo->dither_mode = JDITHER_NONE; - } else if (keymatch(argv[argn], "ordered", 2)) { - cinfo->dither_mode = JDITHER_ORDERED; - } else - usage(); - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "fast", 1)) { - /* Select recommended processing options for quick-and-dirty output. */ - cinfo->two_pass_quantize = FALSE; - cinfo->dither_mode = JDITHER_ORDERED; - if (! cinfo->quantize_colors) /* don't override an earlier -colors */ - cinfo->desired_number_of_colors = 216; - cinfo->dct_method = JDCT_FASTEST; - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "gif", 1)) { - /* GIF output format. */ - requested_fmt = FMT_GIF; - - } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { - /* Force monochrome output. */ - cinfo->out_color_space = JCS_GRAYSCALE; - - } else if (keymatch(arg, "map", 3)) { - /* Quantize to a color map taken from an input file. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (for_real) { /* too expensive to do twice! */ -#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ - FILE * mapfile; - - if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - read_color_map(cinfo, mapfile); - fclose(mapfile); - cinfo->quantize_colors = TRUE; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "nosmooth", 3)) { - /* Suppress fancy upsampling */ - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "onepass", 3)) { - /* Use fast one-pass quantization. */ - cinfo->two_pass_quantize = FALSE; - - } else if (keymatch(arg, "os2", 3)) { - /* BMP output format (OS/2 flavor). */ - requested_fmt = FMT_OS2; - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { - /* PPM/PGM output format. */ - requested_fmt = FMT_PPM; - - } else if (keymatch(arg, "rle", 1)) { - /* RLE output format. */ - requested_fmt = FMT_RLE; - - } else if (keymatch(arg, "scale", 1)) { - /* Scale the output image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d/%d", - &cinfo->scale_num, &cinfo->scale_denom) != 2) - usage(); - - } else if (keymatch(arg, "targa", 1)) { - /* Targa output format. */ - requested_fmt = FMT_TARGA; - - } else { - usage(); /* bogus switch */ - } - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * Marker processor for COM and interesting APPn markers. - * This replaces the library's built-in processor, which just skips the marker. - * We want to print out the marker as text, to the extent possible. - * Note this code relies on a non-suspending data source. - */ - -LOCAL(unsigned int) -jpeg_getc (j_decompress_ptr cinfo) -/* Read next byte */ -{ - struct jpeg_source_mgr * datasrc = cinfo->src; - - if (datasrc->bytes_in_buffer == 0) { - if (! (*datasrc->fill_input_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } - datasrc->bytes_in_buffer--; - return GETJOCTET(*datasrc->next_input_byte++); -} - - -METHODDEF(boolean) -print_text_marker (j_decompress_ptr cinfo) -{ - boolean traceit = (cinfo->err->trace_level >= 1); - INT32 length; - unsigned int ch; - unsigned int lastch = 0; - - length = jpeg_getc(cinfo) << 8; - length += jpeg_getc(cinfo); - length -= 2; /* discount the length word itself */ - - if (traceit) { - if (cinfo->unread_marker == JPEG_COM) - fprintf(stderr, "Comment, length %ld:\n", (long) length); - else /* assume it is an APPn otherwise */ - fprintf(stderr, "APP%d, length %ld:\n", - cinfo->unread_marker - JPEG_APP0, (long) length); - } - - while (--length >= 0) { - ch = jpeg_getc(cinfo); - if (traceit) { - /* Emit the character in a readable form. - * Nonprintables are converted to \nnn form, - * while \ is converted to \\. - * Newlines in CR, CR/LF, or LF form will be printed as one newline. - */ - if (ch == '\r') { - fprintf(stderr, "\n"); - } else if (ch == '\n') { - if (lastch != '\r') - fprintf(stderr, "\n"); - } else if (ch == '\\') { - fprintf(stderr, "\\\\"); - } else if (isprint(ch)) { - putc(ch, stderr); - } else { - fprintf(stderr, "\\%03o", ch); - } - lastch = ch; - } - } - - if (traceit) - fprintf(stderr, "\n"); - - return TRUE; -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - int file_index; - djpeg_dest_ptr dest_mgr = NULL; - FILE * input_file; - FILE * output_file; - JDIMENSION num_scanlines; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "djpeg"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG decompression object with default error handling. */ - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - /* Add some application-specific error messages (from cderror.h) */ - jerr.addon_message_table = cdjpeg_message_table; - jerr.first_addon_message = JMSG_FIRSTADDONCODE; - jerr.last_addon_message = JMSG_LASTADDONCODE; - - /* Insert custom marker processor for COM and APP12. - * APP12 is used by some digital camera makers for textual info, - * so we provide the ability to display it as text. - * If you like, additional APPn marker types can be selected for display, - * but don't try to override APP0 or APP14 this way (see libjpeg.doc). - */ - jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); - jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); - - /* Now safe to enable signal catcher. */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &cinfo); -#endif - - /* Scan command line to find file names. */ - /* It is convenient to use just one switch-parsing routine, but the switch - * values read here are ignored; we will rescan the switches after opening - * the input file. - * (Exception: tracing level set here controls verbosity for COM markers - * found during jpeg_read_header...) - */ - - file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - input_file = read_stdin(); - } - - /* Open the output file. */ - if (outfilename != NULL) { - if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - output_file = write_stdout(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &cinfo, &progress); -#endif - - /* Specify data source for decompression */ - jpeg_stdio_src(&cinfo, input_file); - - /* Read file header, set default decompression parameters */ - (void) jpeg_read_header(&cinfo, TRUE); - - /* Adjust default decompression parameters by re-parsing the options */ - file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); - - /* Initialize the output module now to let it override any crucial - * option settings (for instance, GIF wants to force color quantization). - */ - switch (requested_fmt) { -#ifdef BMP_SUPPORTED - case FMT_BMP: - dest_mgr = jinit_write_bmp(&cinfo, FALSE); - break; - case FMT_OS2: - dest_mgr = jinit_write_bmp(&cinfo, TRUE); - break; -#endif -#ifdef GIF_SUPPORTED - case FMT_GIF: - dest_mgr = jinit_write_gif(&cinfo); - break; -#endif -#ifdef PPM_SUPPORTED - case FMT_PPM: - dest_mgr = jinit_write_ppm(&cinfo); - break; -#endif -#ifdef RLE_SUPPORTED - case FMT_RLE: - dest_mgr = jinit_write_rle(&cinfo); - break; -#endif -#ifdef TARGA_SUPPORTED - case FMT_TARGA: - dest_mgr = jinit_write_targa(&cinfo); - break; -#endif - default: - ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); - break; - } - dest_mgr->output_file = output_file; - - /* Start decompressor */ - (void) jpeg_start_decompress(&cinfo); - - /* Write output file header */ - (*dest_mgr->start_output) (&cinfo, dest_mgr); - - /* Process data */ - while (cinfo.output_scanline < cinfo.output_height) { - num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, - dest_mgr->buffer_height); - (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); - } - -#ifdef PROGRESS_REPORT - /* Hack: count final pass as done in case finish_output does an extra pass. - * The library won't have updated completed_passes. - */ - progress.pub.completed_passes = progress.pub.total_passes; -#endif - - /* Finish decompression and release memory. - * I must do it in this order because output module has allocated memory - * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. - */ - (*dest_mgr->finish_output) (&cinfo, dest_mgr); - (void) jpeg_finish_decompress(&cinfo); - jpeg_destroy_decompress(&cinfo); - - /* Close files, if we opened them */ - if (input_file != stdin) - fclose(input_file); - if (output_file != stdout) - fclose(output_file); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &cinfo); -#endif - - /* All done. */ - exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} +/* + * djpeg.c + * + * Copyright (C) 1991-1997, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file contains a command-line user interface for the JPEG decompressor. + * It should work on any system with Unix- or MS-DOS-style command lines. + * + * Two different command line styles are permitted, depending on the + * compile-time switch TWO_FILE_COMMANDLINE: + * djpeg [options] inputfile outputfile + * djpeg [options] [inputfile] + * In the second style, output is always to standard output, which you'd + * normally redirect to a file or pipe to some other program. Input is + * either from a named file or from standard input (typically redirected). + * The second style is convenient on Unix but is unhelpful on systems that + * don't support pipes. Also, you MUST use the first style if your system + * doesn't do binary I/O to stdin/stdout. + * To simplify script writing, the "-outfile" switch is provided. The syntax + * djpeg [options] -outfile outputfile inputfile + * works regardless of which command line style is used. + */ + +#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ +#include "jversion.h" /* for version message */ + +#include /* to declare isprint() */ + +#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ +#ifdef __MWERKS__ +#include /* Metrowerks needs this */ +#include /* ... and this */ +#endif +#ifdef THINK_C +#include /* Think declares it here */ +#endif +#endif + + +/* Create the add-on message string table. */ + +#define JMESSAGE(code,string) string , + +static const char * const cdjpeg_message_table[] = { +#include "cderror.h" + NULL +}; + + +/* + * This list defines the known output image formats + * (not all of which need be supported by a given version). + * You can change the default output format by defining DEFAULT_FMT; + * indeed, you had better do so if you undefine PPM_SUPPORTED. + */ + +typedef enum { + FMT_BMP, /* BMP format (Windows flavor) */ + FMT_GIF, /* GIF format */ + FMT_OS2, /* BMP format (OS/2 flavor) */ + FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ + FMT_RLE, /* RLE format */ + FMT_TARGA, /* Targa format */ + FMT_TIFF /* TIFF format */ +} IMAGE_FORMATS; + +#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ +#define DEFAULT_FMT FMT_PPM +#endif + +static IMAGE_FORMATS requested_fmt; + + +/* + * Argument-parsing code. + * The switch parser is designed to be useful with DOS-style command line + * syntax, ie, intermixed switches and file names, where only the switches + * to the left of a given file name affect processing of that file. + * The main program in this file doesn't actually use this capability... + */ + + +static const char * progname; /* program name for error messages */ +static char * outfilename; /* for -outfile switch */ + + +LOCAL(void) +usage (void) +/* complain about bad command line */ +{ + fprintf(stderr, "usage: %s [switches] ", progname); +#ifdef TWO_FILE_COMMANDLINE + fprintf(stderr, "inputfile outputfile\n"); +#else + fprintf(stderr, "[inputfile]\n"); +#endif + + fprintf(stderr, "Switches (names may be abbreviated):\n"); + fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); + fprintf(stderr, " -fast Fast, low-quality processing\n"); + fprintf(stderr, " -grayscale Force grayscale output\n"); +#ifdef IDCT_SCALING_SUPPORTED + fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", + (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); +#endif +#ifdef GIF_SUPPORTED + fprintf(stderr, " -gif Select GIF output format%s\n", + (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); +#endif +#ifdef BMP_SUPPORTED + fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", + (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); +#endif +#ifdef PPM_SUPPORTED + fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", + (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); +#endif +#ifdef RLE_SUPPORTED + fprintf(stderr, " -rle Select Utah RLE output format%s\n", + (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); +#endif +#ifdef TARGA_SUPPORTED + fprintf(stderr, " -targa Select Targa output format%s\n", + (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); +#endif + fprintf(stderr, "Switches for advanced users:\n"); +#ifdef DCT_ISLOW_SUPPORTED + fprintf(stderr, " -dct int Use integer DCT method%s\n", + (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); +#endif +#ifdef DCT_IFAST_SUPPORTED + fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", + (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); +#endif +#ifdef DCT_FLOAT_SUPPORTED + fprintf(stderr, " -dct float Use floating-point DCT method%s\n", + (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); +#endif + fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); + fprintf(stderr, " -dither none Don't use dithering in quantization\n"); + fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); +#ifdef QUANT_2PASS_SUPPORTED + fprintf(stderr, " -map FILE Map to colors used in named image file\n"); +#endif + fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); +#ifdef QUANT_1PASS_SUPPORTED + fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); +#endif + fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); + fprintf(stderr, " -outfile name Specify name for output file\n"); + fprintf(stderr, " -verbose or -debug Emit debug output\n"); + exit(EXIT_FAILURE); +} + + +LOCAL(int) +parse_switches (j_decompress_ptr cinfo, int argc, char **argv, + int last_file_arg_seen, boolean for_real) +/* Parse optional switches. + * Returns argv[] index of first file-name argument (== argc if none). + * Any file names with indexes <= last_file_arg_seen are ignored; + * they have presumably been processed in a previous iteration. + * (Pass 0 for last_file_arg_seen on the first or only iteration.) + * for_real is FALSE on the first (dummy) pass; we may skip any expensive + * processing. + */ +{ + int argn; + char * arg; + + /* Set up default JPEG parameters. */ + requested_fmt = DEFAULT_FMT; /* set default output file format */ + outfilename = NULL; + cinfo->err->trace_level = 0; + + /* Scan command line options, adjust parameters */ + + for (argn = 1; argn < argc; argn++) { + arg = argv[argn]; + if (*arg != '-') { + /* Not a switch, must be a file name argument */ + if (argn <= last_file_arg_seen) { + outfilename = NULL; /* -outfile applies to just one input file */ + continue; /* ignore this name if previously processed */ + } + break; /* else done parsing switches */ + } + arg++; /* advance past switch marker character */ + + if (keymatch(arg, "bmp", 1)) { + /* BMP output format. */ + requested_fmt = FMT_BMP; + + } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || + keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { + /* Do color quantization. */ + int val; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d", &val) != 1) + usage(); + cinfo->desired_number_of_colors = val; + cinfo->quantize_colors = TRUE; + + } else if (keymatch(arg, "dct", 2)) { + /* Select IDCT algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "int", 1)) { + cinfo->dct_method = JDCT_ISLOW; + } else if (keymatch(argv[argn], "fast", 2)) { + cinfo->dct_method = JDCT_IFAST; + } else if (keymatch(argv[argn], "float", 2)) { + cinfo->dct_method = JDCT_FLOAT; + } else + usage(); + + } else if (keymatch(arg, "dither", 2)) { + /* Select dithering algorithm. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (keymatch(argv[argn], "fs", 2)) { + cinfo->dither_mode = JDITHER_FS; + } else if (keymatch(argv[argn], "none", 2)) { + cinfo->dither_mode = JDITHER_NONE; + } else if (keymatch(argv[argn], "ordered", 2)) { + cinfo->dither_mode = JDITHER_ORDERED; + } else + usage(); + + } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { + /* Enable debug printouts. */ + /* On first -d, print version identification */ + static boolean printed_version = FALSE; + + if (! printed_version) { + fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", + JVERSION, JCOPYRIGHT); + printed_version = TRUE; + } + cinfo->err->trace_level++; + + } else if (keymatch(arg, "fast", 1)) { + /* Select recommended processing options for quick-and-dirty output. */ + cinfo->two_pass_quantize = FALSE; + cinfo->dither_mode = JDITHER_ORDERED; + if (! cinfo->quantize_colors) /* don't override an earlier -colors */ + cinfo->desired_number_of_colors = 216; + cinfo->dct_method = JDCT_FASTEST; + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "gif", 1)) { + /* GIF output format. */ + requested_fmt = FMT_GIF; + + } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { + /* Force monochrome output. */ + cinfo->out_color_space = JCS_GRAYSCALE; + + } else if (keymatch(arg, "map", 3)) { + /* Quantize to a color map taken from an input file. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (for_real) { /* too expensive to do twice! */ +#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ + FILE * mapfile; + + if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); + exit(EXIT_FAILURE); + } + read_color_map(cinfo, mapfile); + fclose(mapfile); + cinfo->quantize_colors = TRUE; +#else + ERREXIT(cinfo, JERR_NOT_COMPILED); +#endif + } + + } else if (keymatch(arg, "maxmemory", 3)) { + /* Maximum memory in Kb (or Mb with 'm'). */ + long lval; + char ch = 'x'; + + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) + usage(); + if (ch == 'm' || ch == 'M') + lval *= 1000L; + cinfo->mem->max_memory_to_use = lval * 1000L; + + } else if (keymatch(arg, "nosmooth", 3)) { + /* Suppress fancy upsampling */ + cinfo->do_fancy_upsampling = FALSE; + + } else if (keymatch(arg, "onepass", 3)) { + /* Use fast one-pass quantization. */ + cinfo->two_pass_quantize = FALSE; + + } else if (keymatch(arg, "os2", 3)) { + /* BMP output format (OS/2 flavor). */ + requested_fmt = FMT_OS2; + + } else if (keymatch(arg, "outfile", 4)) { + /* Set output file name. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + outfilename = argv[argn]; /* save it away for later use */ + + } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { + /* PPM/PGM output format. */ + requested_fmt = FMT_PPM; + + } else if (keymatch(arg, "rle", 1)) { + /* RLE output format. */ + requested_fmt = FMT_RLE; + + } else if (keymatch(arg, "scale", 1)) { + /* Scale the output image by a fraction M/N. */ + if (++argn >= argc) /* advance to next argument */ + usage(); + if (sscanf(argv[argn], "%d/%d", + &cinfo->scale_num, &cinfo->scale_denom) != 2) + usage(); + + } else if (keymatch(arg, "targa", 1)) { + /* Targa output format. */ + requested_fmt = FMT_TARGA; + + } else { + usage(); /* bogus switch */ + } + } + + return argn; /* return index of next arg (file name) */ +} + + +/* + * Marker processor for COM and interesting APPn markers. + * This replaces the library's built-in processor, which just skips the marker. + * We want to print out the marker as text, to the extent possible. + * Note this code relies on a non-suspending data source. + */ + +LOCAL(unsigned int) +jpeg_getc (j_decompress_ptr cinfo) +/* Read next byte */ +{ + struct jpeg_source_mgr * datasrc = cinfo->src; + + if (datasrc->bytes_in_buffer == 0) { + if (! (*datasrc->fill_input_buffer) (cinfo)) + ERREXIT(cinfo, JERR_CANT_SUSPEND); + } + datasrc->bytes_in_buffer--; + return GETJOCTET(*datasrc->next_input_byte++); +} + + +METHODDEF(boolean) +print_text_marker (j_decompress_ptr cinfo) +{ + boolean traceit = (cinfo->err->trace_level >= 1); + INT32 length; + unsigned int ch; + unsigned int lastch = 0; + + length = jpeg_getc(cinfo) << 8; + length += jpeg_getc(cinfo); + length -= 2; /* discount the length word itself */ + + if (traceit) { + if (cinfo->unread_marker == JPEG_COM) + fprintf(stderr, "Comment, length %ld:\n", (long) length); + else /* assume it is an APPn otherwise */ + fprintf(stderr, "APP%d, length %ld:\n", + cinfo->unread_marker - JPEG_APP0, (long) length); + } + + while (--length >= 0) { + ch = jpeg_getc(cinfo); + if (traceit) { + /* Emit the character in a readable form. + * Nonprintables are converted to \nnn form, + * while \ is converted to \\. + * Newlines in CR, CR/LF, or LF form will be printed as one newline. + */ + if (ch == '\r') { + fprintf(stderr, "\n"); + } else if (ch == '\n') { + if (lastch != '\r') + fprintf(stderr, "\n"); + } else if (ch == '\\') { + fprintf(stderr, "\\\\"); + } else if (isprint(ch)) { + putc(ch, stderr); + } else { + fprintf(stderr, "\\%03o", ch); + } + lastch = ch; + } + } + + if (traceit) + fprintf(stderr, "\n"); + + return TRUE; +} + + +/* + * The main program. + */ + +int +main (int argc, char **argv) +{ + struct jpeg_decompress_struct cinfo; + struct jpeg_error_mgr jerr; +#ifdef PROGRESS_REPORT + struct cdjpeg_progress_mgr progress; +#endif + int file_index; + djpeg_dest_ptr dest_mgr = NULL; + FILE * input_file; + FILE * output_file; + JDIMENSION num_scanlines; + + /* On Mac, fetch a command line. */ +#ifdef USE_CCOMMAND + argc = ccommand(&argv); +#endif + + progname = argv[0]; + if (progname == NULL || progname[0] == 0) + progname = "djpeg"; /* in case C library doesn't provide it */ + + /* Initialize the JPEG decompression object with default error handling. */ + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_decompress(&cinfo); + /* Add some application-specific error messages (from cderror.h) */ + jerr.addon_message_table = cdjpeg_message_table; + jerr.first_addon_message = JMSG_FIRSTADDONCODE; + jerr.last_addon_message = JMSG_LASTADDONCODE; + + /* Insert custom marker processor for COM and APP12. + * APP12 is used by some digital camera makers for textual info, + * so we provide the ability to display it as text. + * If you like, additional APPn marker types can be selected for display, + * but don't try to override APP0 or APP14 this way (see libjpeg.doc). + */ + jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); + jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); + + /* Now safe to enable signal catcher. */ +#ifdef NEED_SIGNAL_CATCHER + enable_signal_catcher((j_common_ptr) &cinfo); +#endif + + /* Scan command line to find file names. */ + /* It is convenient to use just one switch-parsing routine, but the switch + * values read here are ignored; we will rescan the switches after opening + * the input file. + * (Exception: tracing level set here controls verbosity for COM markers + * found during jpeg_read_header...) + */ + + file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); + +#ifdef TWO_FILE_COMMANDLINE + /* Must have either -outfile switch or explicit output file name */ + if (outfilename == NULL) { + if (file_index != argc-2) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + outfilename = argv[file_index+1]; + } else { + if (file_index != argc-1) { + fprintf(stderr, "%s: must name one input and one output file\n", + progname); + usage(); + } + } +#else + /* Unix style: expect zero or one file name */ + if (file_index < argc-1) { + fprintf(stderr, "%s: only one input file\n", progname); + usage(); + } +#endif /* TWO_FILE_COMMANDLINE */ + + /* Open the input file. */ + if (file_index < argc) { + if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); + exit(EXIT_FAILURE); + } + } else { + /* default input file is stdin */ + input_file = read_stdin(); + } + + /* Open the output file. */ + if (outfilename != NULL) { + if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { + fprintf(stderr, "%s: can't open %s\n", progname, outfilename); + exit(EXIT_FAILURE); + } + } else { + /* default output file is stdout */ + output_file = write_stdout(); + } + +#ifdef PROGRESS_REPORT + start_progress_monitor((j_common_ptr) &cinfo, &progress); +#endif + + /* Specify data source for decompression */ + jpeg_stdio_src(&cinfo, input_file); + + /* Read file header, set default decompression parameters */ + (void) jpeg_read_header(&cinfo, TRUE); + + /* Adjust default decompression parameters by re-parsing the options */ + file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); + + /* Initialize the output module now to let it override any crucial + * option settings (for instance, GIF wants to force color quantization). + */ + switch (requested_fmt) { +#ifdef BMP_SUPPORTED + case FMT_BMP: + dest_mgr = jinit_write_bmp(&cinfo, FALSE); + break; + case FMT_OS2: + dest_mgr = jinit_write_bmp(&cinfo, TRUE); + break; +#endif +#ifdef GIF_SUPPORTED + case FMT_GIF: + dest_mgr = jinit_write_gif(&cinfo); + break; +#endif +#ifdef PPM_SUPPORTED + case FMT_PPM: + dest_mgr = jinit_write_ppm(&cinfo); + break; +#endif +#ifdef RLE_SUPPORTED + case FMT_RLE: + dest_mgr = jinit_write_rle(&cinfo); + break; +#endif +#ifdef TARGA_SUPPORTED + case FMT_TARGA: + dest_mgr = jinit_write_targa(&cinfo); + break; +#endif + default: + ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); + break; + } + dest_mgr->output_file = output_file; + + /* Start decompressor */ + (void) jpeg_start_decompress(&cinfo); + + /* Write output file header */ + (*dest_mgr->start_output) (&cinfo, dest_mgr); + + /* Process data */ + while (cinfo.output_scanline < cinfo.output_height) { + num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, + dest_mgr->buffer_height); + (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); + } + +#ifdef PROGRESS_REPORT + /* Hack: count final pass as done in case finish_output does an extra pass. + * The library won't have updated completed_passes. + */ + progress.pub.completed_passes = progress.pub.total_passes; +#endif + + /* Finish decompression and release memory. + * I must do it in this order because output module has allocated memory + * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. + */ + (*dest_mgr->finish_output) (&cinfo, dest_mgr); + (void) jpeg_finish_decompress(&cinfo); + jpeg_destroy_decompress(&cinfo); + + /* Close files, if we opened them */ + if (input_file != stdin) + fclose(input_file); + if (output_file != stdout) + fclose(output_file); + +#ifdef PROGRESS_REPORT + end_progress_monitor((j_common_ptr) &cinfo); +#endif + + /* All done. */ + exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); + return 0; /* suppress no-return-value warnings */ +} -- cgit From 4909c7ee644d6d92bb8b0f89808a9867e5f1e85a Mon Sep 17 00:00:00 2001 From: David Monniaux Date: Thu, 6 Jun 2019 17:25:40 +0200 Subject: print clock info --- test/monniaux/jpeg-6b/djpeg.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'test/monniaux/jpeg-6b/djpeg.c') diff --git a/test/monniaux/jpeg-6b/djpeg.c b/test/monniaux/jpeg-6b/djpeg.c index e099e90a..e3793a4f 100644 --- a/test/monniaux/jpeg-6b/djpeg.c +++ b/test/monniaux/jpeg-6b/djpeg.c @@ -23,6 +23,11 @@ * works regardless of which command line style is used. */ +#define VERIMAG +#ifdef VERIMAG +#include "../clock.h" +#endif + #include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ #include "jversion.h" /* for version message */ @@ -572,6 +577,11 @@ main (int argc, char **argv) } dest_mgr->output_file = output_file; +#ifdef VERIMAG + clock_prepare(); + clock_start(); +#endif + /* Start decompressor */ (void) jpeg_start_decompress(&cinfo); @@ -584,6 +594,10 @@ main (int argc, char **argv) dest_mgr->buffer_height); (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); } +#ifdef VERIMAG + clock_stop(); + printerr_total_clock(); +#endif #ifdef PROGRESS_REPORT /* Hack: count final pass as done in case finish_output does an extra pass. -- cgit