diff options
Diffstat (limited to 'contrib/syslinux/syslinux-4.03/com32/lib/jpeg/tinyjpeg-internal.h')
| -rw-r--r-- | contrib/syslinux/syslinux-4.03/com32/lib/jpeg/tinyjpeg-internal.h | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/contrib/syslinux/syslinux-4.03/com32/lib/jpeg/tinyjpeg-internal.h b/contrib/syslinux/syslinux-4.03/com32/lib/jpeg/tinyjpeg-internal.h deleted file mode 100644 index bb5c670..0000000 --- a/contrib/syslinux/syslinux-4.03/com32/lib/jpeg/tinyjpeg-internal.h +++ /dev/null @@ -1,213 +0,0 @@ -/* - * Small jpeg decoder library (Internal header) - * - * Copyright (c) 2006, Luc Saillard <luc@saillard.org> - * All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * - Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * - Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * - Neither the name of the author nor the names of its contributors may be - * used to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - */ - - -#ifndef __TINYJPEG_INTERNAL_H_ -#define __TINYJPEG_INTERNAL_H_ - -#include <setjmp.h> - -#define SANITY_CHECK 1 - -struct jdec_private; - -#define HUFFMAN_BITS_SIZE 256 -#define HUFFMAN_HASH_NBITS 9 -#define HUFFMAN_HASH_SIZE (1UL<<HUFFMAN_HASH_NBITS) -#define HUFFMAN_HASH_MASK (HUFFMAN_HASH_SIZE-1) - -#define HUFFMAN_TABLES 4 -#define COMPONENTS 3 -#define JPEG_MAX_WIDTH 4096 -#define JPEG_MAX_HEIGHT 4096 - -struct huffman_table -{ - /* Fast look up table, using HUFFMAN_HASH_NBITS bits we can have directly the symbol, - * if the symbol is <0, then we need to look into the tree table */ - short int lookup[HUFFMAN_HASH_SIZE]; - /* code size: give the number of bits of a symbol is encoded */ - unsigned char code_size[HUFFMAN_HASH_SIZE]; - /* some place to store value that is not encoded in the lookup table - * FIXME: Calculate if 256 value is enough to store all values - */ - uint16_t slowtable[16-HUFFMAN_HASH_NBITS][256]; -}; - -struct component -{ - unsigned int Hfactor; - unsigned int Vfactor; - float *Q_table; /* Pointer to the quantisation table to use */ - struct huffman_table *AC_table; - struct huffman_table *DC_table; - short int previous_DC; /* Previous DC coefficient */ - short int DCT[64]; /* DCT coef */ -#if SANITY_CHECK - unsigned int cid; -#endif -}; - - -typedef void (*decode_MCU_fct) (struct jdec_private *priv); -typedef void (*convert_colorspace_fct) (struct jdec_private *priv, int, int); - -struct jdec_private -{ - /* Public variables */ - uint8_t *components[COMPONENTS]; - unsigned int bytes_per_row[COMPONENTS]; - unsigned int width, height; /* Size of the image */ - unsigned int flags; - - /* Private variables */ - const unsigned char *stream_begin, *stream_end; - unsigned int stream_length; - - const unsigned char *stream; /* Pointer to the current stream */ - unsigned int reservoir, nbits_in_reservoir; - - struct component component_infos[COMPONENTS]; - float Q_tables[COMPONENTS][64]; /* quantization tables */ - struct huffman_table HTDC[HUFFMAN_TABLES]; /* DC huffman tables */ - struct huffman_table HTAC[HUFFMAN_TABLES]; /* AC huffman tables */ - int default_huffman_table_initialized; - int restart_interval; - int restarts_to_go; /* MCUs left in this restart interval */ - int last_rst_marker_seen; /* Rst marker is incremented each time */ - - /* Temp space used after the IDCT to store each components */ - uint8_t Y[64*4], Cr[64], Cb[64]; - - jmp_buf jump_state; - /* Internal Pointer use for colorspace conversion, do not modify it !!! */ - uint8_t *plane[COMPONENTS]; - -}; - -#define IDCT tinyjpeg_idct_float -void tinyjpeg_idct_float (struct component *compptr, uint8_t *output_buf, int stride); - -struct tinyjpeg_colorspace { - convert_colorspace_fct convert_colorspace[4]; - const decode_MCU_fct *decode_mcu_table; - int (*initialize)(struct jdec_private *, unsigned int *, unsigned int *); -}; - -void tinyjpeg_process_Huffman_data_unit(struct jdec_private *priv, int component); - -extern const decode_MCU_fct tinyjpeg_decode_mcu_3comp_table[4]; -extern const decode_MCU_fct tinyjpeg_decode_mcu_1comp_table[4]; - -enum std_markers { - DQT = 0xDB, /* Define Quantization Table */ - SOF = 0xC0, /* Start of Frame (size information) */ - DHT = 0xC4, /* Huffman Table */ - SOI = 0xD8, /* Start of Image */ - SOS = 0xDA, /* Start of Scan */ - RST = 0xD0, /* Reset Marker d0 -> .. */ - RST7 = 0xD7, /* Reset Marker .. -> d7 */ - EOI = 0xD9, /* End of Image */ - DRI = 0xDD, /* Define Restart Interval */ - APP0 = 0xE0, -}; - -#define cY 0 -#define cCb 1 -#define cCr 2 - -#define BLACK_Y 0 -#define BLACK_U 127 -#define BLACK_V 127 - -#define SANITY_CHECK 1 - -#if DEBUG -#define error(fmt, args...) do { \ - snprintf(error_string, sizeof(error_string), fmt, ## args); \ - return -1; \ -} while(0) - -#define trace(fmt, args...) do { \ - fprintf(stderr, fmt, ## args); \ - fflush(stderr); \ -} while(0) -#else -#define error(fmt, args...) do { return -1; } while(0) -#define trace(fmt, args...) do { } while (0) -#endif - -#ifndef __likely -# define __likely(x) (!!(x)) -#endif -#ifndef __unlikely -# define __unlikely(x) (!!(x)) -#endif - -#define min(x, y) ((x) < (y) ? (x) : (y)) -#define max(x, y) ((x) > (y) ? (x) : (y)) - -#if 0 -static char *print_bits(unsigned int value, char *bitstr) -{ - int i, j; - i=31; - while (i>0) - { - if (value & (1UL<<i)) - break; - i--; - } - j=0; - while (i>=0) - { - bitstr[j++] = (value & (1UL<<i))?'1':'0'; - i--; - } - bitstr[j] = 0; - return bitstr; -} - -static void print_next_16bytes(int offset, const unsigned char *stream) -{ - trace("%4.4x: %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x\n", - offset, - stream[0], stream[1], stream[2], stream[3], - stream[4], stream[5], stream[6], stream[7], - stream[8], stream[9], stream[10], stream[11], - stream[12], stream[13], stream[14], stream[15]); -} - -#endif - -#endif |