X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0272a10d2e6d5323422c4c8600fe47ccac0df182..302c73511a6819c5a56269ba95cb18eb11e994f0:/src/png/png.h diff --git a/src/png/png.h b/src/png/png.h index b51fc913a1..3873728b42 100644 --- a/src/png/png.h +++ b/src/png/png.h @@ -1,15 +1,14 @@ - /* png.h - header file for PNG reference library * - * libpng version 1.2.20 - September 8, 2007 - * Copyright (c) 1998-2007 Glenn Randers-Pehrson + * libpng version 1.2.34 - December 18, 2008 + * Copyright (c) 1998-2008 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.2.20 - September 8, 2007: Glenn + * libpng versions 0.97, January 1998, through 1.2.34 - December 18, 2008: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -160,6 +159,64 @@ * 1.2.20rc1-6 13 10220 12.so.0.20[.0] * 1.0.28 10 10028 10.so.0.28[.0] * 1.2.20 13 10220 12.so.0.20[.0] + * 1.2.21beta1-2 13 10221 12.so.0.21[.0] + * 1.2.21rc1-3 13 10221 12.so.0.21[.0] + * 1.0.29 10 10029 10.so.0.29[.0] + * 1.2.21 13 10221 12.so.0.21[.0] + * 1.2.22beta1-4 13 10222 12.so.0.22[.0] + * 1.0.30rc1 10 10030 10.so.0.30[.0] + * 1.2.22rc1 13 10222 12.so.0.22[.0] + * 1.0.30 10 10030 10.so.0.30[.0] + * 1.2.22 13 10222 12.so.0.22[.0] + * 1.2.23beta01-05 13 10223 12.so.0.23[.0] + * 1.2.23rc01 13 10223 12.so.0.23[.0] + * 1.2.23 13 10223 12.so.0.23[.0] + * 1.2.24beta01-02 13 10224 12.so.0.24[.0] + * 1.2.24rc01 13 10224 12.so.0.24[.0] + * 1.2.24 13 10224 12.so.0.24[.0] + * 1.2.25beta01-06 13 10225 12.so.0.25[.0] + * 1.2.25rc01-02 13 10225 12.so.0.25[.0] + * 1.0.31 10 10031 10.so.0.31[.0] + * 1.2.25 13 10225 12.so.0.25[.0] + * 1.2.26beta01-06 13 10226 12.so.0.26[.0] + * 1.2.26rc01 13 10226 12.so.0.26[.0] + * 1.2.26 13 10226 12.so.0.26[.0] + * 1.0.32 10 10032 10.so.0.32[.0] + * 1.2.27beta01-06 13 10227 12.so.0.27[.0] + * 1.2.27rc01 13 10227 12.so.0.27[.0] + * 1.0.33 10 10033 10.so.0.33[.0] + * 1.2.27 13 10227 12.so.0.27[.0] + * 1.0.34 10 10034 10.so.0.34[.0] + * 1.2.28 13 10228 12.so.0.28[.0] + * 1.2.29beta01-03 13 10229 12.so.0.29[.0] + * 1.2.29rc01 13 10229 12.so.0.29[.0] + * 1.0.35 10 10035 10.so.0.35[.0] + * 1.2.29 13 10229 12.so.0.29[.0] + * 1.0.37 10 10037 10.so.0.37[.0] + * 1.2.30beta01-04 13 10230 12.so.0.30[.0] + * 1.0.38rc01-08 10 10038 10.so.0.38[.0] + * 1.2.30rc01-08 13 10230 12.so.0.30[.0] + * 1.0.38 10 10038 10.so.0.38[.0] + * 1.2.30 13 10230 12.so.0.30[.0] + * 1.0.39rc01-03 10 10039 10.so.0.39[.0] + * 1.2.31rc01-03 13 10231 12.so.0.31[.0] + * 1.0.39 10 10039 10.so.0.39[.0] + * 1.2.31 13 10231 12.so.0.31[.0] + * 1.2.32beta01-02 13 10232 12.so.0.32[.0] + * 1.0.40rc01 10 10040 10.so.0.40[.0] + * 1.2.32rc01 13 10232 12.so.0.32[.0] + * 1.0.40 10 10040 10.so.0.40[.0] + * 1.2.32 13 10232 12.so.0.32[.0] + * 1.2.33beta01-02 13 10233 12.so.0.33[.0] + * 1.2.33rc01-02 13 10233 12.so.0.33[.0] + * 1.0.41rc01 10 10041 10.so.0.41[.0] + * 1.2.33 13 10233 12.so.0.33[.0] + * 1.0.41 10 10041 10.so.0.41[.0] + * 1.2.34beta01-07 13 10234 12.so.0.34[.0] + * 1.0.42rc01 10 10042 10.so.0.42[.0] + * 1.2.34rc01 13 10234 12.so.0.34[.0] + * 1.0.42 10 10042 10.so.0.42[.0] + * 1.2.34 13 10234 12.so.0.34[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -169,7 +226,7 @@ * to the source version x.y.z (leading zeros in y and z). Beta versions * were given the previous public release number plus a letter, until * version 1.0.6j; from then on they were given the upcoming public - * release number plus "betaNN" or "rcN". + * release number plus "betaNN" or "rcNN". * * Binary incompatibility exists only when applications make direct access * to the info_ptr or png_ptr members through png.h, and the compiled @@ -189,8 +246,8 @@ * If you modify libpng you may insert additional notices immediately following * this sentence. * - * libpng versions 1.2.6, August 15, 2004, through 1.2.20, September 8, 2007, are - * Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are + * libpng versions 1.2.6, August 15, 2004, through 1.2.34, December 18, 2008, are + * Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are * distributed according to the same disclaimer and license as libpng-1.2.5 * with the following individual added to the list of Contributing Authors: * @@ -301,13 +358,13 @@ * Y2K compliance in libpng: * ========================= * - * September 8, 2007 + * December 18, 2008 * * Since the PNG Development group is an ad-hoc body, we can't make * an official declaration. * * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.2.20 are Y2K compliant. It is my belief that earlier + * upward through 1.2.34 are Y2K compliant. It is my belief that earlier * versions were also Y2K compliant. * * Libpng only has three year fields. One is a 2-byte unsigned integer @@ -363,9 +420,9 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.2.20" +#define PNG_LIBPNG_VER_STRING "1.2.34" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.2.20 - September 8, 2007\n" + " libpng version 1.2.34 - December 18, 2008\n" #define PNG_LIBPNG_VER_SONUM 0 #define PNG_LIBPNG_VER_DLLNUM 13 @@ -373,7 +430,7 @@ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MINOR 2 -#define PNG_LIBPNG_VER_RELEASE 20 +#define PNG_LIBPNG_VER_RELEASE 34 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ @@ -401,7 +458,7 @@ * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only * version 1.0.0 was mis-numbered 100 instead of 10000). From * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10220 /* 1.2.20 */ +#define PNG_LIBPNG_VER 10234 /* 1.2.34 */ #ifndef PNG_VERSION_INFO_ONLY /* include the compression library's header */ @@ -642,9 +699,10 @@ typedef png_time FAR * FAR * png_timepp; * up private chunks for output even though the library doesn't actually * know about their semantics. */ +#define PNG_CHUNK_NAME_LENGTH 5 typedef struct png_unknown_chunk_t { - png_byte name[5]; + png_byte name[PNG_CHUNK_NAME_LENGTH]; png_byte *data; png_size_t size; @@ -1101,7 +1159,10 @@ typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp)); #define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ #define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ #define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ -#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only */ +#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only, deprecated */ +/* Added to libpng-1.2.34 */ +#define PNG_TRANSFORM_STRIP_FILLER_BEFORE 0x0800 /* WRITE only */ +#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* WRITE only */ /* Flags for MNG supported features */ #define PNG_FLAG_MNG_EMPTY_PLTE 0x01 @@ -1171,10 +1232,12 @@ struct png_struct_def png_uint_32 row_number; /* current row in interlace pass */ png_bytep prev_row; /* buffer to save previous (unfiltered) row */ png_bytep row_buf; /* buffer to save current (unfiltered) row */ +#ifndef PNG_NO_WRITE_FILTER png_bytep sub_row; /* buffer to save "sub" row when filtering */ png_bytep up_row; /* buffer to save "up" row when filtering */ png_bytep avg_row; /* buffer to save "avg" row when filtering */ png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ +#endif png_row_info row_info; /* used for transformation routines */ png_uint_32 idat_size; /* current IDAT size for read */ @@ -1406,13 +1469,20 @@ struct png_struct_def /* storage for unknown chunk that the library doesn't recognize. */ png_unknown_chunk unknown_chunk; #endif + +/* New members added in libpng-1.2.26 */ + png_uint_32 old_big_row_buf_size, old_prev_row_size; + +/* New member added in libpng-1.2.30 */ + png_charp chunkdata; /* buffer for reading chunk data */ + }; /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ -typedef png_structp version_1_2_20; +typedef png_structp version_1_2_34; typedef png_struct FAR * FAR * png_structpp; @@ -2464,33 +2534,80 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, #if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) #include #if (PNG_DEBUG > 1) -#define png_debug(l,m) _RPT0(_CRT_WARN,m) -#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1) -#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2) +#ifndef _DEBUG +# define _DEBUG +#endif +#ifndef png_debug +#define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE) +#endif +#ifndef png_debug1 +#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1) +#endif +#ifndef png_debug2 +#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2) +#endif #endif #else /* PNG_DEBUG_FILE || !_MSC_VER */ #ifndef PNG_DEBUG_FILE #define PNG_DEBUG_FILE stderr #endif /* PNG_DEBUG_FILE */ #if (PNG_DEBUG > 1) +#ifndef png_debug +/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on + * non-ISO compilers */ +#ifdef __STDC__ #define png_debug(l,m) \ { \ int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ + fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \ } +#endif +#ifndef png_debug1 #define png_debug1(l,m,p1) \ { \ int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ + fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \ } +#endif +#ifndef png_debug2 #define png_debug2(l,m,p1,p2) \ { \ int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ + fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \ } +#endif +#else /* __STDC __ */ +#ifndef png_debug +#define png_debug(l,m) \ + int num_tabs=l; \ + char format[256]; \ + snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ + (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ + m,PNG_STRING_NEWLINE); \ + fprintf(PNG_DEBUG_FILE,format); +#endif +#ifndef png_debug1 +#define png_debug1(l,m,p1) \ + int num_tabs=l; \ + char format[256]; \ + snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ + (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ + m,PNG_STRING_NEWLINE); \ + fprintf(PNG_DEBUG_FILE,format,p1); +#endif +#ifndef png_debug2 +#define png_debug2(l,m,p1,p2) \ + int num_tabs=l; \ + char format[256]; \ + snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ + (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ + m,PNG_STRING_NEWLINE); \ + fprintf(PNG_DEBUG_FILE,format,p1,p2); +#endif +#endif /* __STDC __ */ #endif /* (PNG_DEBUG > 1) */ #endif /* _MSC_VER */ #endif /* (PNG_DEBUG > 0) */ @@ -2607,6 +2724,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp png_ptr)); #endif + /* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */ #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED @@ -2988,8 +3106,8 @@ PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf, /* Decompress data in a chunk that uses compression */ #if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \ defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) -PNG_EXTERN png_charp png_decompress_chunk PNGARG((png_structp png_ptr, - int comp_type, png_charp chunkdata, png_size_t chunklength, +PNG_EXTERN void png_decompress_chunk PNGARG((png_structp png_ptr, + int comp_type, png_size_t chunklength, png_size_t prefix_length, png_size_t *data_length)); #endif @@ -3518,6 +3636,18 @@ png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); #endif /* PNG_pHYs_SUPPORTED */ #endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ +/* Read the chunk header (length + type name) */ +PNG_EXTERN png_uint_32 png_read_chunk_header PNGARG((png_structp png_ptr)); + +/* Added at libpng version 1.2.34 */ +#if defined(PNG_cHRM_SUPPORTED) +PNG_EXTERN int png_check_cHRM_fixed PNGARG((png_structp png_ptr, + png_fixed_point int_white_x, png_fixed_point int_white_y, + png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point + int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, + png_fixed_point int_blue_y)); +#endif + /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ #endif /* PNG_INTERNAL */