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/*
+--------------------------------------------------------------------------+
| CHStone : a suite of benchmark programs for C-based High-Level Synthesis |
| ======================================================================== |
| |
| * Collected and Modified : Y. Hara, H. Tomiyama, S. Honda, |
| H. Takada and K. Ishii |
| Nagoya University, Japan |
| |
| * Remark : |
| 1. This source code is modified to unify the formats of the benchmark |
| programs in CHStone. |
| 2. Test vectors are added for CHStone. |
| 3. If "main_result" is 0 at the end of the program, the program is |
| correctly executed. |
| 4. Please follow the copyright of each benchmark program. |
+--------------------------------------------------------------------------+
*/
/*
* Copyright (C) 2008
* Y. Hara, H. Tomiyama, S. Honda, H. Takada and K. Ishii
* Nagoya University, Japan
* All rights reserved.
*
* Disclaimer of Warranty
*
* These software programs are available to the user without any license fee or
* royalty on an "as is" basis. The authors disclaims any and all warranties,
* whether express, implied, or statuary, including any implied warranties or
* merchantability or of fitness for a particular purpose. In no event shall the
* copyright-holder be liable for any incidental, punitive, or consequential damages
* of any kind whatsoever arising from the use of these programs. This disclaimer
* of warranty extends to the user of these programs and user's customers, employees,
* agents, transferees, successors, and assigns.
*
*/
/*
* Read the header information from buffer in JFIF format and begin decoding
*
* @(#) $Id: jfif_read.c,v 1.2 2003/07/18 10:19:21 honda Exp $
*/
/*
* Initialize after reading markers
*/
void
jpeg_init_decompress ()
{
int tmp;
/*
* Get MCU number
*/
p_jinfo_MCUHeight = (p_jinfo_image_height - 1) / 8 + 1;
p_jinfo_MCUWidth = (p_jinfo_image_width - 1) / 8 + 1;
p_jinfo_NumMCU = p_jinfo_MCUHeight * p_jinfo_MCUWidth;
/*
* Create Huffman Table for decoding
*/
tmp = huff_make_dhuff_tb (&p_jinfo_dc_xhuff_tbl_bits[0][0],
p_jinfo_dc_dhuff_tbl_ml[0],
&p_jinfo_dc_dhuff_tbl_maxcode[0][0],
&p_jinfo_dc_dhuff_tbl_mincode[0][0],
&p_jinfo_dc_dhuff_tbl_valptr[0][0]);
p_jinfo_dc_dhuff_tbl_ml[0] = tmp;
tmp = huff_make_dhuff_tb (&p_jinfo_dc_xhuff_tbl_bits[1][0],
p_jinfo_dc_dhuff_tbl_ml[1],
&p_jinfo_dc_dhuff_tbl_maxcode[1][0],
&p_jinfo_dc_dhuff_tbl_mincode[1][0],
&p_jinfo_dc_dhuff_tbl_valptr[1][0]);
p_jinfo_dc_dhuff_tbl_ml[1] = tmp;
tmp = huff_make_dhuff_tb (&p_jinfo_ac_xhuff_tbl_bits[0][0],
p_jinfo_ac_dhuff_tbl_ml[0],
&p_jinfo_ac_dhuff_tbl_maxcode[0][0],
&p_jinfo_ac_dhuff_tbl_mincode[0][0],
&p_jinfo_ac_dhuff_tbl_valptr[0][0]);
p_jinfo_ac_dhuff_tbl_ml[0] = tmp;
tmp = huff_make_dhuff_tb (&p_jinfo_ac_xhuff_tbl_bits[1][0],
p_jinfo_ac_dhuff_tbl_ml[1],
&p_jinfo_ac_dhuff_tbl_maxcode[1][0],
&p_jinfo_ac_dhuff_tbl_mincode[1][0],
&p_jinfo_ac_dhuff_tbl_valptr[1][0]);
p_jinfo_ac_dhuff_tbl_ml[1] = tmp;
}
void
jpeg_read (unsigned char *read_buf)
{
/*
* Read markers
*/
read_markers (read_buf);
/*
* Initialize the information used for decoding
*/
jpeg_init_decompress ();
/*
* Start decoding
*/
decode_start (&OutData_image_width, &OutData_image_height,
&OutData_comp_vpos[0], &OutData_comp_hpos[0]);
}
|
