src/lib/jpeg.h

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2001 Michael Schroeder
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 /*
  17  * a tiny jpeg decoder.
  18  *
  19  * written in August 2001 by Michael Schroeder <mls@suse.de>
  20  */
  21
  22 #ifndef __JPEG_H
  23 #define __JPEG_H
  24
  25 #define ERR_NO_SOI 1
  26 #define ERR_NOT_8BIT 2
  27 #define ERR_HEIGHT_MISMATCH 3
  28 #define ERR_WIDTH_MISMATCH 4
  29 #define ERR_BAD_WIDTH_OR_HEIGHT 5
  30 #define ERR_TOO_MANY_COMPPS 6
  31 #define ERR_ILLEGAL_HV 7
  32 #define ERR_QUANT_TABLE_SELECTOR 8
  33 #define ERR_NOT_YCBCR_221111 9
  34 #define ERR_UNKNOWN_CID_IN_SCAN 10
  35 #define ERR_NOT_SEQUENTIAL_DCT 11
  36 #define ERR_WRONG_MARKER 12
  37 #define ERR_NO_EOI 13
  38 #define ERR_BAD_TABLES 14
  39 #define ERR_DEPTH_MISMATCH 15
  40
  41 struct jpeg_decdata {
  42         int dcts[6 * 64 + 16];
  43         int out[64 * 6];
  44         int dquant[3][64];
  45 };
  46
  47 int jpeg_decode(unsigned char *, unsigned char *, int, int, int, struct jpeg_decdata *);
  48 void jpeg_fetch_size(unsigned char *buf, int *width, int *height);
  49 int jpeg_check_size(unsigned char *, int, int);
  50
  51 #endif