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[CHG] libpng 1.2.29 updated to version 1.2.40

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Crayon2000 2009-10-18 04:12:45 +00:00
parent 4f5fbbf2d4
commit 1e84350468
3 changed files with 373 additions and 189 deletions
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381
GRRLIB/lib/png/include/png.h
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@ -1,14 +1,16 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.2.29 - May 8, 2008 * libpng version 1.2.40 - September 10, 2009
* Copyright (c) 1998-2008 Glenn Randers-Pehrson * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
* This code is released under the libpng license (See LICENSE, below)
*
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * 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 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.2.29 - May 8, 2008: Glenn * libpng versions 0.97, January 1998, through 1.2.40 - September 10, 2009: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -192,6 +194,57 @@
* 1.2.29rc01 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] * 1.0.35 10 10035 10.so.0.35[.0]
* 1.2.29 13 10229 12.so.0.29[.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]
* 1.2.35beta01-03 13 10235 12.so.0.35[.0]
* 1.0.43rc01-02 10 10043 10.so.0.43[.0]
* 1.2.35rc01-02 13 10235 12.so.0.35[.0]
* 1.0.43 10 10043 10.so.0.43[.0]
* 1.2.35 13 10235 12.so.0.35[.0]
* 1.2.36beta01-05 13 10236 12.so.0.36[.0]
* 1.2.36rc01 13 10236 12.so.0.36[.0]
* 1.0.44 10 10044 10.so.0.44[.0]
* 1.2.36 13 10236 12.so.0.36[.0]
* 1.2.37beta01-03 13 10237 12.so.0.37[.0]
* 1.2.37rc01 13 10237 12.so.0.37[.0]
* 1.2.37 13 10237 12.so.0.37[.0]
* 1.2.45 10 10045 12.so.0.45[.0]
* 1.0.46 10 10046 10.so.0.46[.0]
* 1.2.38beta01 13 10238 12.so.0.38[.0]
* 1.2.38rc01-03 13 10238 12.so.0.38[.0]
* 1.0.47 10 10047 10.so.0.47[.0]
* 1.2.38 13 10238 12.so.0.38[.0]
* 1.2.39beta01-05 13 10239 12.so.0.39[.0]
* 1.2.39rc01 13 10239 12.so.0.39[.0]
* 1.0.48 10 10048 10.so.0.48[.0]
* 1.2.39 13 10239 12.so.0.39[.0]
* 1.2.40beta01 13 10240 12.so.0.40[.0]
* 1.2.40rc01 13 10240 12.so.0.40[.0]
* 1.0.49 10 10049 10.so.0.49[.0]
* 1.2.40 13 10240 12.so.0.40[.0]
* *
* Henceforth the source version will match the shared-library major * Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be * and minor numbers; the shared-library major version number will be
@ -221,8 +274,10 @@
* If you modify libpng you may insert additional notices immediately following * If you modify libpng you may insert additional notices immediately following
* this sentence. * this sentence.
* *
* libpng versions 1.2.6, August 15, 2004, through 1.2.29, May 8, 2008, are * This code is released under the libpng license.
* Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are *
* libpng versions 1.2.6, August 15, 2004, through 1.2.40, September 10, 2009, are
* Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5 * distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors: * with the following individual added to the list of Contributing Authors:
* *
@ -333,13 +388,13 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* May 8, 2008 * September 10, 2009
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
* *
* This is your unofficial assurance that libpng from version 0.71 and * This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.2.29 are Y2K compliant. It is my belief that earlier * upward through 1.2.40 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant. * versions were also Y2K compliant.
* *
* Libpng only has three year fields. One is a 2-byte unsigned integer * Libpng only has three year fields. One is a 2-byte unsigned integer
@ -395,9 +450,9 @@
*/ */
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.2.29" #define PNG_LIBPNG_VER_STRING "1.2.40"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.2.29 - May 8, 2008\n" " libpng version 1.2.40 - September 10, 2009\n"
#define PNG_LIBPNG_VER_SONUM 0 #define PNG_LIBPNG_VER_SONUM 0
#define PNG_LIBPNG_VER_DLLNUM 13 #define PNG_LIBPNG_VER_DLLNUM 13
@ -405,9 +460,10 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 2 #define PNG_LIBPNG_VER_MINOR 2
#define PNG_LIBPNG_VER_RELEASE 29 #define PNG_LIBPNG_VER_RELEASE 40
/* This should match the numeric part of the final component of /* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */ * PNG_LIBPNG_VER_STRING, omitting any leading zero:
*/
#define PNG_LIBPNG_VER_BUILD 0 #define PNG_LIBPNG_VER_BUILD 0
@ -432,15 +488,16 @@
* We must not include leading zeros. * We must not include leading zeros.
* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only * 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 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release
#define PNG_LIBPNG_VER 10229 /* 1.2.29 */ */
#define PNG_LIBPNG_VER 10240 /* 1.2.40 */
#ifndef PNG_VERSION_INFO_ONLY #ifndef PNG_VERSION_INFO_ONLY
/* include the compression library's header */ /* Include the compression library's header */
#include "zlib.h" #include "zlib.h"
#endif #endif
/* include all user configurable info, including optional assembler routines */ /* Include all user configurable info, including optional assembler routines */
#include "pngconf.h" #include "pngconf.h"
/* /*
@ -515,14 +572,14 @@ extern "C" {
#define png_write_status_ptr_NULL NULL #define png_write_status_ptr_NULL NULL
#endif #endif
/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ /* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */
#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
/* Version information for C files, stored in png.c. This had better match /* Version information for C files, stored in png.c. This had better match
* the version above. * the version above.
*/ */
#ifdef PNG_USE_GLOBAL_ARRAYS #ifdef PNG_USE_GLOBAL_ARRAYS
PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18]; PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18];
/* need room for 99.99.99beta99z */ /* Need room for 99.99.99beta99z */
#else #else
#define png_libpng_ver png_get_header_ver(NULL) #define png_libpng_ver png_get_header_ver(NULL)
#endif #endif
@ -641,7 +698,8 @@ typedef png_text FAR * FAR * png_textpp;
#endif #endif
/* Supported compression types for text in PNG files (tEXt, and zTXt). /* Supported compression types for text in PNG files (tEXt, and zTXt).
* The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */ * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed.
*/
#define PNG_TEXT_COMPRESSION_NONE_WR -3 #define PNG_TEXT_COMPRESSION_NONE_WR -3
#define PNG_TEXT_COMPRESSION_zTXt_WR -2 #define PNG_TEXT_COMPRESSION_zTXt_WR -2
#define PNG_TEXT_COMPRESSION_NONE -1 #define PNG_TEXT_COMPRESSION_NONE -1
@ -668,7 +726,8 @@ typedef struct png_time_struct
typedef png_time FAR * png_timep; typedef png_time FAR * png_timep;
typedef png_time FAR * FAR * png_timepp; typedef png_time FAR * FAR * png_timepp;
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
/* png_unknown_chunk is a structure to hold queued chunks for which there is /* png_unknown_chunk is a structure to hold queued chunks for which there is
* no specific support. The idea is that we can use this to queue * no specific support. The idea is that we can use this to queue
* up private chunks for output even though the library doesn't actually * up private chunks for output even though the library doesn't actually
@ -730,7 +789,7 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp;
*/ */
typedef struct png_info_struct typedef struct png_info_struct
{ {
/* the following are necessary for every PNG file */ /* The following are necessary for every PNG file */
png_uint_32 width; /* width of image in pixels (from IHDR) */ png_uint_32 width; /* width of image in pixels (from IHDR) */
png_uint_32 height; /* height of image in pixels (from IHDR) */ png_uint_32 height; /* height of image in pixels (from IHDR) */
png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */ png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */
@ -903,8 +962,9 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
png_uint_32 free_me; /* flags items libpng is responsible for freeing */ png_uint_32 free_me; /* flags items libpng is responsible for freeing */
#endif #endif
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
/* storage for unknown chunks that the library doesn't recognize. */ defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
/* Storage for unknown chunks that the library doesn't recognize. */
png_unknown_chunkp unknown_chunks; png_unknown_chunkp unknown_chunks;
png_size_t unknown_chunks_num; png_size_t unknown_chunks_num;
#endif #endif
@ -919,7 +979,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
#endif #endif
#if defined(PNG_sPLT_SUPPORTED) #if defined(PNG_sPLT_SUPPORTED)
/* data on sPLT chunks (there may be more than one). */ /* Data on sPLT chunks (there may be more than one). */
png_sPLT_tp splt_palettes; png_sPLT_tp splt_palettes;
png_uint_32 splt_palettes_num; png_uint_32 splt_palettes_num;
#endif #endif
@ -1134,7 +1194,10 @@ typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp));
#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ #define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */
#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ #define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */
#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* 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 */ /* Flags for MNG supported features */
#define PNG_FLAG_MNG_EMPTY_PLTE 0x01 #define PNG_FLAG_MNG_EMPTY_PLTE 0x01
@ -1204,7 +1267,7 @@ struct png_struct_def
png_uint_32 row_number; /* current row in interlace pass */ png_uint_32 row_number; /* current row in interlace pass */
png_bytep prev_row; /* buffer to save previous (unfiltered) row */ png_bytep prev_row; /* buffer to save previous (unfiltered) row */
png_bytep row_buf; /* buffer to save current (unfiltered) row */ png_bytep row_buf; /* buffer to save current (unfiltered) row */
#ifndef PNG_NO_WRITE_FILTERING #ifndef PNG_NO_WRITE_FILTER
png_bytep sub_row; /* buffer to save "sub" row when filtering */ png_bytep sub_row; /* buffer to save "sub" row when filtering */
png_bytep up_row; /* buffer to save "up" 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 avg_row; /* buffer to save "avg" row when filtering */
@ -1251,7 +1314,7 @@ struct png_struct_def
#endif /* PNG_bKGD_SUPPORTED */ #endif /* PNG_bKGD_SUPPORTED */
#if defined(PNG_WRITE_FLUSH_SUPPORTED) #if defined(PNG_WRITE_FLUSH_SUPPORTED)
png_flush_ptr output_flush_fn;/* Function for flushing output */ png_flush_ptr output_flush_fn; /* Function for flushing output */
png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */
png_uint_32 flush_rows; /* number of rows written since last flush */ png_uint_32 flush_rows; /* number of rows written since last flush */
#endif #endif
@ -1357,7 +1420,7 @@ struct png_struct_def
png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */
#endif #endif
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
int num_chunk_list; int num_chunk_list;
png_bytep chunk_list; png_bytep chunk_list;
#endif #endif
@ -1375,7 +1438,7 @@ struct png_struct_def
#if defined(PNG_MNG_FEATURES_SUPPORTED) || \ #if defined(PNG_MNG_FEATURES_SUPPORTED) || \
defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
/* changed from png_byte to png_uint_32 at version 1.2.0 */ /* Changed from png_byte to png_uint_32 at version 1.2.0 */
#ifdef PNG_1_0_X #ifdef PNG_1_0_X
png_byte mng_features_permitted; png_byte mng_features_permitted;
#else #else
@ -1438,19 +1501,23 @@ struct png_struct_def
/* New member added in libpng-1.0.25 and 1.2.17 */ /* New member added in libpng-1.0.25 and 1.2.17 */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
/* storage for unknown chunk that the library doesn't recognize. */ /* Storage for unknown chunk that the library doesn't recognize. */
png_unknown_chunk unknown_chunk; png_unknown_chunk unknown_chunk;
#endif #endif
/* New members added in libpng-1.2.26 */ /* New members added in libpng-1.2.26 */
png_uint_32 old_big_row_buf_size, old_prev_row_size; 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 /* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number. * do not agree upon the version number.
*/ */
typedef png_structp version_1_2_29; typedef png_structp version_1_2_40;
typedef png_struct FAR * FAR * png_structpp; typedef png_struct FAR * FAR * png_structpp;
@ -1554,7 +1621,7 @@ extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read the information before the actual image data. */ /* Read the information before the actual image data. */
extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
#endif #endif
@ -1567,11 +1634,11 @@ extern PNG_EXPORT(png_charp,png_convert_to_rfc1123)
#if !defined(_WIN32_WCE) #if !defined(_WIN32_WCE)
/* "time.h" functions are not supported on WindowsCE */ /* "time.h" functions are not supported on WindowsCE */
#if defined(PNG_WRITE_tIME_SUPPORTED) #if defined(PNG_WRITE_tIME_SUPPORTED)
/* convert from a struct tm to png_time */ /* Convert from a struct tm to png_time */
extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime,
struct tm FAR * ttime)); struct tm FAR * ttime));
/* convert from time_t to png_time. Uses gmtime() */ /* Convert from time_t to png_time. Uses gmtime() */
extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime,
time_t ttime)); time_t ttime));
#endif /* PNG_WRITE_tIME_SUPPORTED */ #endif /* PNG_WRITE_tIME_SUPPORTED */
@ -1691,7 +1758,7 @@ extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr,
#endif #endif
#if defined(PNG_READ_16_TO_8_SUPPORTED) #if defined(PNG_READ_16_TO_8_SUPPORTED)
/* strip the second byte of information from a 16-bit depth file. */ /* Strip the second byte of information from a 16-bit depth file. */
extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr));
#endif #endif
@ -1727,74 +1794,74 @@ extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows));
extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr));
#endif #endif
/* optional update palette with requested transformations */ /* Optional update palette with requested transformations */
extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr));
/* optional call to update the users info structure */ /* Optional call to update the users info structure */
extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read one or more rows of image data. */ /* Read one or more rows of image data. */
extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr,
png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)); png_bytepp row, png_bytepp display_row, png_uint_32 num_rows));
#endif #endif
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read a row of data. */ /* Read a row of data. */
extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr,
png_bytep row, png_bytep row,
png_bytep display_row)); png_bytep display_row));
#endif #endif
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read the whole image into memory at once. */ /* Read the whole image into memory at once. */
extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr,
png_bytepp image)); png_bytepp image));
#endif #endif
/* write a row of image data */ /* Write a row of image data */
extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr,
png_bytep row)); png_bytep row));
/* write a few rows of image data */ /* Write a few rows of image data */
extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr,
png_bytepp row, png_uint_32 num_rows)); png_bytepp row, png_uint_32 num_rows));
/* write the image data */ /* Write the image data */
extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr,
png_bytepp image)); png_bytepp image));
/* writes the end of the PNG file. */ /* Writes the end of the PNG file. */
extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
/* read the end of the PNG file. */ /* Read the end of the PNG file. */
extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
#endif #endif
/* free any memory associated with the png_info_struct */ /* Free any memory associated with the png_info_struct */
extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr,
png_infopp info_ptr_ptr)); png_infopp info_ptr_ptr));
/* free any memory associated with the png_struct and the png_info_structs */ /* Free any memory associated with the png_struct and the png_info_structs */
extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp
png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr));
/* free all memory used by the read (old method - NOT DLL EXPORTED) */ /* Free all memory used by the read (old method - NOT DLL EXPORTED) */
extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr, extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr,
png_infop end_info_ptr)); png_infop end_info_ptr));
/* free any memory associated with the png_struct and the png_info_structs */ /* Free any memory associated with the png_struct and the png_info_structs */
extern PNG_EXPORT(void,png_destroy_write_struct) extern PNG_EXPORT(void,png_destroy_write_struct)
PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)); PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr));
/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ /* Free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */
extern void png_write_destroy PNGARG((png_structp png_ptr)); extern void png_write_destroy PNGARG((png_structp png_ptr));
/* set the libpng method of handling chunk CRC errors */ /* Set the libpng method of handling chunk CRC errors */
extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr,
int crit_action, int ancil_action)); int crit_action, int ancil_action));
@ -1822,7 +1889,7 @@ extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr,
* header file (zlib.h) for an explination of the compression functions. * header file (zlib.h) for an explination of the compression functions.
*/ */
/* set the filtering method(s) used by libpng. Currently, the only valid /* Set the filtering method(s) used by libpng. Currently, the only valid
* value for "method" is 0. * value for "method" is 0.
*/ */
extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method,
@ -1950,6 +2017,11 @@ extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr));
* If buffered output is not used, then output_flush_fn can be set to NULL. * If buffered output is not used, then output_flush_fn can be set to NULL.
* If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time
* output_flush_fn will be ignored (and thus can be NULL). * output_flush_fn will be ignored (and thus can be NULL).
* It is probably a mistake to use NULL for output_flush_fn if
* write_data_fn is not also NULL unless you have built libpng with
* PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's
* default flush function, which uses the standard *FILE structure, will
* be used.
*/ */
extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr,
png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn));
@ -2014,15 +2086,15 @@ extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr,
png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn,
png_progressive_end_ptr end_fn)); png_progressive_end_ptr end_fn));
/* returns the user pointer associated with the push read functions */ /* Returns the user pointer associated with the push read functions */
extern PNG_EXPORT(png_voidp,png_get_progressive_ptr) extern PNG_EXPORT(png_voidp,png_get_progressive_ptr)
PNGARG((png_structp png_ptr)); PNGARG((png_structp png_ptr));
/* function to be called when data becomes available */ /* Function to be called when data becomes available */
extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_bytep buffer, png_size_t buffer_size)); png_infop info_ptr, png_bytep buffer, png_size_t buffer_size));
/* function that combines rows. Not very much different than the /* Function that combines rows. Not very much different than the
* png_combine_row() call. Is this even used????? * png_combine_row() call. Is this even used?????
*/ */
extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr,
@ -2040,7 +2112,7 @@ extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr,
png_uint_32 size)); png_uint_32 size));
#endif #endif
/* frees a pointer allocated by png_malloc() */ /* Frees a pointer allocated by png_malloc() */
extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr));
#if defined(PNG_1_0_X) #if defined(PNG_1_0_X)
@ -2057,11 +2129,12 @@ extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 free_me, int num)); png_infop info_ptr, png_uint_32 free_me, int num));
#ifdef PNG_FREE_ME_SUPPORTED #ifdef PNG_FREE_ME_SUPPORTED
/* Reassign responsibility for freeing existing data, whether allocated /* Reassign responsibility for freeing existing data, whether allocated
* by libpng or by the application */ * by libpng or by the application
*/
extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr,
png_infop info_ptr, int freer, png_uint_32 mask)); png_infop info_ptr, int freer, png_uint_32 mask));
#endif #endif
/* assignments for png_data_freer */ /* Assignments for png_data_freer */
#define PNG_DESTROY_WILL_FREE_DATA 1 #define PNG_DESTROY_WILL_FREE_DATA 1
#define PNG_SET_WILL_FREE_DATA 1 #define PNG_SET_WILL_FREE_DATA 1
#define PNG_USER_WILL_FREE_DATA 2 #define PNG_USER_WILL_FREE_DATA 2
@ -2145,11 +2218,13 @@ png_infop info_ptr));
#if defined(PNG_INFO_IMAGE_SUPPORTED) #if defined(PNG_INFO_IMAGE_SUPPORTED)
/* Returns row_pointers, which is an array of pointers to scanlines that was /* Returns row_pointers, which is an array of pointers to scanlines that was
returned from png_read_png(). */ * returned from png_read_png().
*/
extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
/* Set row_pointers, which is an array of pointers to scanlines for use /* Set row_pointers, which is an array of pointers to scanlines for use
by png_write_png(). */ * by png_write_png().
*/
extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_bytepp row_pointers)); png_infop info_ptr, png_bytepp row_pointers));
#endif #endif
@ -2450,8 +2525,8 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
#endif #endif
#endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ #endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
/* provide a list of chunks and how they are to be handled, if the built-in /* Provide a list of chunks and how they are to be handled, if the built-in
handling or default unknown chunk handling is not desired. Any chunks not handling or default unknown chunk handling is not desired. Any chunks not
listed will be handled in the default manner. The IHDR and IEND chunks listed will be handled in the default manner. The IHDR and IEND chunks
must not be listed. must not be listed.
@ -2462,6 +2537,10 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
*/ */
extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp
png_ptr, int keep, png_bytep chunk_list, int num_chunks)); png_ptr, int keep, png_bytep chunk_list, int num_chunks));
PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep
chunk_name));
#endif
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns));
extern PNG_EXPORT(void, png_set_unknown_chunk_location) extern PNG_EXPORT(void, png_set_unknown_chunk_location)
@ -2469,14 +2548,11 @@ extern PNG_EXPORT(void, png_set_unknown_chunk_location)
extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp
png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); png_ptr, png_infop info_ptr, png_unknown_chunkpp entries));
#endif #endif
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep
chunk_name));
#endif
/* Png_free_data() will turn off the "valid" flag for anything it frees. /* Png_free_data() will turn off the "valid" flag for anything it frees.
If you need to turn it off for a chunk that your application has freed, * If you need to turn it off for a chunk that your application has freed,
you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */ * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK);
*/
extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr,
png_infop info_ptr, int mask)); png_infop info_ptr, int mask));
@ -2502,34 +2578,90 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) #if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
#include <crtdbg.h> #include <crtdbg.h>
#if (PNG_DEBUG > 1) #if (PNG_DEBUG > 1)
#define png_debug(l,m) _RPT0(_CRT_WARN,m) #ifndef _DEBUG
#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1) # define _DEBUG
#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2) #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 #endif
#else /* PNG_DEBUG_FILE || !_MSC_VER */ #else /* PNG_DEBUG_FILE || !_MSC_VER */
#ifndef PNG_DEBUG_FILE #ifndef PNG_DEBUG_FILE
#define PNG_DEBUG_FILE stderr #define PNG_DEBUG_FILE stderr
#endif /* PNG_DEBUG_FILE */ #endif /* PNG_DEBUG_FILE */
#if (PNG_DEBUG > 1) #if (PNG_DEBUG > 1)
#define png_debug(l,m) \ /* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on non-ISO
{ \ * compilers.
*/
# ifdef __STDC__
# ifndef png_debug
# define png_debug(l,m) \
{ \
int num_tabs=l; \ 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":"")))); \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
} }
#define png_debug1(l,m,p1) \ # endif
{ \ # ifndef png_debug1
# define png_debug1(l,m,p1) \
{ \
int num_tabs=l; \ 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); \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
} }
#define png_debug2(l,m,p1,p2) \ # endif
{ \ # ifndef png_debug2
# define png_debug2(l,m,p1,p2) \
{ \
int num_tabs=l; \ 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); \ (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 /* (PNG_DEBUG > 1) */
#endif /* _MSC_VER */ #endif /* _MSC_VER */
#endif /* (PNG_DEBUG > 0) */ #endif /* (PNG_DEBUG > 0) */
#endif /* PNG_DEBUG */ #endif /* PNG_DEBUG */
@ -2624,17 +2756,17 @@ extern PNG_EXPORT(void,png_set_mmx_thresholds)
#if !defined(PNG_1_0_X) #if !defined(PNG_1_0_X)
/* png.c, pnggccrd.c, or pngvcrd.c */ /* png.c, pnggccrd.c, or pngvcrd.c */
extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
#endif /* PNG_1_0_X */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ #endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
/* Strip the prepended error numbers ("#nnn ") from error and warning /* Strip the prepended error numbers ("#nnn ") from error and warning
* messages before passing them to the error or warning handler. */ * messages before passing them to the error or warning handler.
*/
#ifdef PNG_ERROR_NUMBERS_SUPPORTED #ifdef PNG_ERROR_NUMBERS_SUPPORTED
extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
png_ptr, png_uint_32 strip_mode)); png_ptr, png_uint_32 strip_mode));
#endif #endif
#endif /* PNG_1_0_X */
/* Added at libpng-1.2.6 */ /* Added at libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED #ifdef PNG_SET_USER_LIMITS_SUPPORTED
extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp
@ -2645,7 +2777,10 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
png_ptr)); png_ptr));
#endif #endif
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
/* Maintainer: Put new public prototypes here ^, in libpng.3, and in
* project defs
*/
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on /* With these routines we avoid an integer divide, which will be slower on
@ -2674,7 +2809,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
(png_uint_32)(alpha)) + (png_uint_32)32768L); \ (png_uint_32)(alpha)) + (png_uint_32)32768L); \
(composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); }
#else /* standard method using integer division */ #else /* Standard method using integer division */
# define png_composite(composite, fg, alpha, bg) \ # define png_composite(composite, fg, alpha, bg) \
(composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \
@ -2757,7 +2892,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
#define PNG_HAVE_PNG_SIGNATURE 0x1000 #define PNG_HAVE_PNG_SIGNATURE 0x1000
#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */
/* flags for the transformations the PNG library does on the image data */ /* Flags for the transformations the PNG library does on the image data */
#define PNG_BGR 0x0001 #define PNG_BGR 0x0001
#define PNG_INTERLACE 0x0002 #define PNG_INTERLACE 0x0002
#define PNG_PACK 0x0004 #define PNG_PACK 0x0004
@ -2791,7 +2926,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
/* 0x20000000L unused */ /* 0x20000000L unused */
/* 0x40000000L unused */ /* 0x40000000L unused */
/* flags for png_create_struct */ /* Flags for png_create_struct */
#define PNG_STRUCT_PNG 0x0001 #define PNG_STRUCT_PNG 0x0001
#define PNG_STRUCT_INFO 0x0002 #define PNG_STRUCT_INFO 0x0002
@ -2801,7 +2936,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
#define PNG_COST_SHIFT 3 #define PNG_COST_SHIFT 3
#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) #define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT))
/* flags for the png_ptr->flags rather than declaring a byte for each one */ /* Flags for the png_ptr->flags rather than declaring a byte for each one */
#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 #define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001
#define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002 #define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002
#define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004 #define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004
@ -2843,7 +2978,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ #define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \
PNG_FLAG_CRC_CRITICAL_MASK) PNG_FLAG_CRC_CRITICAL_MASK)
/* save typing and make code easier to understand */ /* Save typing and make code easier to understand */
#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ #define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \
abs((int)((c1).green) - (int)((c2).green)) + \ abs((int)((c1).green) - (int)((c2).green)) + \
@ -2856,15 +2991,16 @@ extern PNG_EXPORT(void,png_save_uint_16)
(( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) ) (( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) )
/* PNG_OUT_OF_RANGE returns true if value is outside the range /* PNG_OUT_OF_RANGE returns true if value is outside the range
ideal-delta..ideal+delta. Each argument is evaluated twice. * ideal-delta..ideal+delta. Each argument is evaluated twice.
"ideal" and "delta" should be constants, normally simple * "ideal" and "delta" should be constants, normally simple
integers, "value" a variable. Added to libpng-1.2.6 JB */ * integers, "value" a variable. Added to libpng-1.2.6 JB
*/
#define PNG_OUT_OF_RANGE(value, ideal, delta) \ #define PNG_OUT_OF_RANGE(value, ideal, delta) \
( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) )
/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ /* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */
#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
/* place to hold the signature string for a PNG file. */ /* Place to hold the signature string for a PNG file. */
#ifdef PNG_USE_GLOBAL_ARRAYS #ifdef PNG_USE_GLOBAL_ARRAYS
PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sig[8]; PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sig[8];
#else #else
@ -2983,7 +3119,8 @@ PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr));
#endif #endif
/* Next four functions are used internally as callbacks. PNGAPI is required /* Next four functions are used internally as callbacks. PNGAPI is required
* but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */ * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3.
*/
PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr, PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr,
png_bytep data, png_size_t length)); png_bytep data, png_size_t length));
@ -3026,8 +3163,8 @@ PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf,
/* Decompress data in a chunk that uses compression */ /* Decompress data in a chunk that uses compression */
#if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \ #if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \
defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED)
PNG_EXTERN png_charp png_decompress_chunk PNGARG((png_structp png_ptr, PNG_EXTERN void png_decompress_chunk PNGARG((png_structp png_ptr,
int comp_type, png_charp chunkdata, png_size_t chunklength, int comp_type, png_size_t chunklength,
png_size_t prefix_length, png_size_t *data_length)); png_size_t prefix_length, png_size_t *data_length));
#endif #endif
@ -3048,10 +3185,10 @@ PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr,
PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)); PNG_EXTERN void png_flush PNGARG((png_structp png_ptr));
#endif #endif
/* simple function to write the signature */ /* Simple function to write the signature */
PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)); PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr));
/* write various chunks */ /* Write various chunks */
/* Write the IHDR chunk, and update the png_struct with the necessary /* Write the IHDR chunk, and update the png_struct with the necessary
* information. * information.
@ -3203,12 +3340,12 @@ PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr));
PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr)); PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr));
#endif #endif
/* combine a row of data, dealing with alpha, etc. if requested */ /* Combine a row of data, dealing with alpha, etc. if requested */
PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row, PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row,
int mask)); int mask));
#if defined(PNG_READ_INTERLACING_SUPPORTED) #if defined(PNG_READ_INTERLACING_SUPPORTED)
/* expand an interlaced row */ /* Expand an interlaced row */
/* OLD pre-1.0.9 interface: /* OLD pre-1.0.9 interface:
PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info, PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info,
png_bytep row, int pass, png_uint_32 transformations)); png_bytep row, int pass, png_uint_32 transformations));
@ -3219,12 +3356,12 @@ PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr));
/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ /* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */
#if defined(PNG_WRITE_INTERLACING_SUPPORTED) #if defined(PNG_WRITE_INTERLACING_SUPPORTED)
/* grab pixels out of a row for an interlaced pass */ /* Grab pixels out of a row for an interlaced pass */
PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info, PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info,
png_bytep row, int pass)); png_bytep row, int pass));
#endif #endif
/* unfilter a row */ /* Unfilter a row */
PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr, PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr,
png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter)); png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter));
@ -3235,16 +3372,16 @@ PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr,
/* Write out the filtered row. */ /* Write out the filtered row. */
PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr, PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr,
png_bytep filtered_row)); png_bytep filtered_row));
/* finish a row while reading, dealing with interlacing passes, etc. */ /* Finish a row while reading, dealing with interlacing passes, etc. */
PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr)); PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr));
/* initialize the row buffers, etc. */ /* Initialize the row buffers, etc. */
PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr)); PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr));
/* optional call to update the users info structure */ /* Optional call to update the users info structure */
PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr,
png_infop info_ptr)); png_infop info_ptr));
/* these are the functions that do the transformations */ /* These are the functions that do the transformations */
#if defined(PNG_READ_FILLER_SUPPORTED) #if defined(PNG_READ_FILLER_SUPPORTED)
PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info,
png_bytep row, png_uint_32 filler, png_uint_32 flags)); png_bytep row, png_uint_32 filler, png_uint_32 flags));
@ -3366,7 +3503,7 @@ PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info,
* then calls the appropriate callback for the chunk if it is valid. * then calls the appropriate callback for the chunk if it is valid.
*/ */
/* decode the IHDR chunk */ /* Decode the IHDR chunk */
PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr, PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr,
png_uint_32 length)); png_uint_32 length));
PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr, PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr,
@ -3465,7 +3602,7 @@ PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr,
PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr,
png_bytep chunk_name)); png_bytep chunk_name));
/* handle the transformations for reading and writing */ /* Handle the transformations for reading and writing */
PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr)); PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr));
PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr)); PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr));
@ -3556,6 +3693,26 @@ png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type));
#endif /* PNG_pHYs_SUPPORTED */ #endif /* PNG_pHYs_SUPPORTED */
#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_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
#if defined(PNG_cHRM_SUPPORTED)
#if !defined(PNG_NO_CHECK_cHRM)
/* Added at libpng version 1.2.34 */
PNG_EXTERN void png_64bit_product (long v1, long v2, unsigned long *hi_product,
unsigned long *lo_product);
#endif
#endif
/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
#endif /* PNG_INTERNAL */ #endif /* PNG_INTERNAL */
@ -3565,5 +3722,5 @@ png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type));
#endif #endif
#endif /* PNG_VERSION_INFO_ONLY */ #endif /* PNG_VERSION_INFO_ONLY */
/* do not put anything past this line */ /* Do not put anything past this line */
#endif /* PNG_H */ #endif /* PNG_H */

93
GRRLIB/lib/png/include/pngconf.h
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@ -1,11 +1,14 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng version 1.2.29 - May 8, 2008 * libpng version 1.2.40 - September 10, 2009
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/ */
/* Any machine specific code is near the front of this file, so if you /* Any machine specific code is near the front of this file, so if you
@ -233,6 +236,8 @@
# include <windows.h> # include <windows.h>
/* Console I/O functions are not supported on WindowsCE */ /* Console I/O functions are not supported on WindowsCE */
# define PNG_NO_CONSOLE_IO # define PNG_NO_CONSOLE_IO
/* abort() may not be supported on some/all Windows CE platforms */
# define PNG_ABORT() exit(-1)
# ifdef PNG_DEBUG # ifdef PNG_DEBUG
# undef PNG_DEBUG # undef PNG_DEBUG
# endif # endif
@ -312,8 +317,15 @@
#ifdef PNG_SETJMP_SUPPORTED #ifdef PNG_SETJMP_SUPPORTED
/* This is an attempt to force a single setjmp behaviour on Linux. If /* This is an attempt to force a single setjmp behaviour on Linux. If
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this. * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
*
* You can bypass this test if you know that your application uses exactly
* the same setjmp.h that was included when libpng was built. Only define
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
* while building a separate libpng library for general use.
*/ */
# ifndef PNG_SKIP_SETJMP_CHECK
# ifdef __linux__ # ifdef __linux__
# ifdef _BSD_SOURCE # ifdef _BSD_SOURCE
# define PNG_SAVE_BSD_SOURCE # define PNG_SAVE_BSD_SOURCE
@ -323,10 +335,11 @@
/* If you encounter a compiler error here, see the explanation /* If you encounter a compiler error here, see the explanation
* near the end of INSTALL. * near the end of INSTALL.
*/ */
__pngconf.h__ already includes setjmp.h; __pngconf.h__ in libpng already includes setjmp.h;
__dont__ include it again.; __dont__ include it again.;
# endif # endif
# endif /* __linux__ */ # endif /* __linux__ */
# endif /* PNG_SKIP_SETJMP_CHECK */
/* include setjmp.h for error handling */ /* include setjmp.h for error handling */
# include <setjmp.h> # include <setjmp.h>
@ -477,7 +490,7 @@
* iTXt support was added. iTXt support was turned off by default through * iTXt support was added. iTXt support was turned off by default through
* libpng-1.2.x, to support old apps that malloc the png_text structure * libpng-1.2.x, to support old apps that malloc the png_text structure
* instead of calling png_set_text() and letting libpng malloc it. It * instead of calling png_set_text() and letting libpng malloc it. It
* was turned on by default in libpng-1.3.0. * will be turned on by default in libpng-1.4.0.
*/ */
#if defined(PNG_1_0_X) || defined (PNG_1_2_X) #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
@ -511,6 +524,7 @@
# define PNG_NO_FREE_ME # define PNG_NO_FREE_ME
# define PNG_NO_READ_UNKNOWN_CHUNKS # define PNG_NO_READ_UNKNOWN_CHUNKS
# define PNG_NO_WRITE_UNKNOWN_CHUNKS # define PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_NO_HANDLE_AS_UNKNOWN
# define PNG_NO_READ_USER_CHUNKS # define PNG_NO_READ_USER_CHUNKS
# define PNG_NO_READ_iCCP # define PNG_NO_READ_iCCP
# define PNG_NO_WRITE_iCCP # define PNG_NO_WRITE_iCCP
@ -540,7 +554,7 @@
# define PNG_FREE_ME_SUPPORTED # define PNG_FREE_ME_SUPPORTED
#endif #endif
#if defined(PNG_READ_SUPPORTED) #ifdef PNG_READ_SUPPORTED
#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
!defined(PNG_NO_READ_TRANSFORMS) !defined(PNG_NO_READ_TRANSFORMS)
@ -628,7 +642,7 @@
#endif /* PNG_READ_SUPPORTED */ #endif /* PNG_READ_SUPPORTED */
#if defined(PNG_WRITE_SUPPORTED) #ifdef PNG_WRITE_SUPPORTED
# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
!defined(PNG_NO_WRITE_TRANSFORMS) !defined(PNG_NO_WRITE_TRANSFORMS)
@ -798,6 +812,11 @@
# define PNG_USER_HEIGHT_MAX 1000000L # define PNG_USER_HEIGHT_MAX 1000000L
#endif #endif
/* Added at libpng-1.2.34 and 1.4.0 */
#ifndef PNG_STRING_NEWLINE
#define PNG_STRING_NEWLINE "\n"
#endif
/* These are currently experimental features, define them if you want */ /* These are currently experimental features, define them if you want */
/* very little testing */ /* very little testing */
@ -925,14 +944,22 @@
# define PNG_READ_zTXt_SUPPORTED # define PNG_READ_zTXt_SUPPORTED
# define PNG_zTXt_SUPPORTED # define PNG_zTXt_SUPPORTED
#endif #endif
#ifndef PNG_NO_READ_OPT_PLTE
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
#endif /* optional PLTE chunk in RGB and RGBA images */
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
defined(PNG_READ_zTXt_SUPPORTED)
# define PNG_READ_TEXT_SUPPORTED
# define PNG_TEXT_SUPPORTED
#endif
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
# define PNG_UNKNOWN_CHUNKS_SUPPORTED # define PNG_UNKNOWN_CHUNKS_SUPPORTED
# endif # endif
# ifndef PNG_NO_HANDLE_AS_UNKNOWN
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# endif
#endif #endif
#if !defined(PNG_NO_READ_USER_CHUNKS) && \ #if !defined(PNG_NO_READ_USER_CHUNKS) && \
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
@ -945,17 +972,14 @@
# undef PNG_NO_HANDLE_AS_UNKNOWN # undef PNG_NO_HANDLE_AS_UNKNOWN
# endif # endif
#endif #endif
#ifndef PNG_NO_READ_OPT_PLTE
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ #ifndef PNG_NO_HANDLE_AS_UNKNOWN
#endif /* optional PLTE chunk in RGB and RGBA images */ # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
defined(PNG_READ_zTXt_SUPPORTED) # endif
# define PNG_READ_TEXT_SUPPORTED
# define PNG_TEXT_SUPPORTED
#endif #endif
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ #ifdef PNG_WRITE_SUPPORTED
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#ifdef PNG_NO_WRITE_TEXT #ifdef PNG_NO_WRITE_TEXT
@ -1067,17 +1091,6 @@
# define PNG_zTXt_SUPPORTED # define PNG_zTXt_SUPPORTED
# endif # endif
#endif #endif
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
# endif
# ifndef PNG_NO_HANDLE_AS_UNKNOWN
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# endif
# endif
#endif
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
defined(PNG_WRITE_zTXt_SUPPORTED) defined(PNG_WRITE_zTXt_SUPPORTED)
# define PNG_WRITE_TEXT_SUPPORTED # define PNG_WRITE_TEXT_SUPPORTED
@ -1088,6 +1101,20 @@
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
# endif
#endif
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# endif
#endif
#endif /* PNG_WRITE_SUPPORTED */
/* Turn this off to disable png_read_png() and /* Turn this off to disable png_read_png() and
* png_write_png() and leave the row_pointers member * png_write_png() and leave the row_pointers member
* out of the info structure. * out of the info structure.
@ -1123,10 +1150,10 @@ typedef unsigned char png_byte;
change (I'm not sure if you will or not, so I thought I'd be safe) */ change (I'm not sure if you will or not, so I thought I'd be safe) */
#ifdef PNG_SIZE_T #ifdef PNG_SIZE_T
typedef PNG_SIZE_T png_size_t; typedef PNG_SIZE_T png_size_t;
# define png_sizeof(x) png_convert_size(sizeof (x)) # define png_sizeof(x) png_convert_size(sizeof(x))
#else #else
typedef size_t png_size_t; typedef size_t png_size_t;
# define png_sizeof(x) sizeof (x) # define png_sizeof(x) sizeof(x)
#endif #endif
/* The following is needed for medium model support. It cannot be in the /* The following is needed for medium model support. It cannot be in the
@ -1233,7 +1260,7 @@ typedef char FAR * FAR * FAR * png_charppp;
#if defined(PNG_1_0_X) || defined(PNG_1_2_X) #if defined(PNG_1_0_X) || defined(PNG_1_2_X)
/* SPC - Is this stuff deprecated? */ /* SPC - Is this stuff deprecated? */
/* It'll be removed as of libpng-1.3.0 - GR-P */ /* It'll be removed as of libpng-1.4.0 - GR-P */
/* libpng typedefs for types in zlib. If zlib changes /* libpng typedefs for types in zlib. If zlib changes
* or another compression library is used, then change these. * or another compression library is used, then change these.
* Eliminates need to change all the source files. * Eliminates need to change all the source files.

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GRRLIB/lib/png/lib/wii/libpng.a
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