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Imported from pngcrush-1.4.5.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-07-01 07:10:39 -05:00
parent 52ab58fb21
commit 55c878d8e5
33 changed files with 2225 additions and 1340 deletions
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291
png.h
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@@ -1,15 +1,15 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.0.6i - May 1, 2000
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* libpng version 1.0.7rc2 - June 28, 2000
* Copyright (c) 1998, 1999, 2000 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 1.0.6i - May 1, 2000: Glenn
* libpng versions 0.97, January 1998, through 1.0.7rc2 - June 28, 2000: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -20,39 +20,43 @@
* The following table summarizes matters since version 0.89c, which was
* the first widely used release:
*
* source png.h png.h shared-lib
* version string int version
* ------- ------ ----- ----------
* 0.89c ("1.0 beta 3") 0.89 89 1.0.89
* 0.90 ("1.0 beta 4") 0.90 90 0.90 [should have been 2.0.90]
* 0.95 ("1.0 beta 5") 0.95 95 0.95 [should have been 2.0.95]
* 0.96 ("1.0 beta 6") 0.96 96 0.96 [should have been 2.0.96]
* 0.97b ("1.00.97 beta 7") 1.00.97 97 1.0.1 [should have been 2.0.97]
* 0.97c 0.97 97 2.0.97
* 0.98 0.98 98 2.0.98
* 0.99 0.99 98 2.0.99
* 0.99a-m 0.99 99 2.0.99
* 1.00 1.00 100 2.1.0 [100 should be 10000]
* 1.0.0 1.0.0 100 2.1.0 [100 should be 10000]
* 1.0.1 1.0.1 10001 2.1.0
* 1.0.1a-e 1.0.1a-e 10002 2.1.0.1a-e
* 1.0.2 1.0.2 10002 2.1.0.2
* 1.0.2a-b 1.0.2a-b 10003 2.1.0.2a-b
* 1.0.3 1.0.3 10003 2.1.0.3
* 1.0.3a-d 1.0.3a-d 10004 2.1.0.3a-d
* 1.0.4 1.0.4 10004 2.1.0.4
* 1.0.4a-f 1.0.4a-f 10005 2.1.0.4a-f
* 1.0.5 (+ 2 patches) 1.0.5 10005 2.1.0.5
* 1.0.5a-d 1.0.5a-d 10006 2.1.0.5a-d
* 1.0.5e-r 1.0.5e-r 10100 2.1.0.5e-r (not source compatible)
* 1.0.5s-v 1.0.5s-v 10006 2.1.0.5s-v (not binary compatible)
* 1.0.6 (+ 3 patches) 1.0.6 10006 2.1.0.6 (still binary incompat)
* 1.0.6d-f 1.0.6d-f 10007 2.1.0.6d-f (still binary incompat)
* 1.0.6g 1.0.6g 10007 2.1.0.6g
* 1.0.6h 1.0.6h 10007 10.6h
* 1.0.6 (+ 4 patches) 1.0.6 10006 2.1.0.6ad (compatible with 1.0.0)
* 1.0.6i 1.0.6i 10007 10.6i (can be compatible w/ 1.0.0)
* 1.0.7 1.0.7 10007 10.7 (still can be compatible)
* source png.h png.h shared-lib
* version string int version
* ------- ------ ----- ----------
* 0.89c "1.0 beta 3" 0.89 89 1.0.89
* 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90]
* 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95]
* 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96]
* 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97]
* 0.97c 0.97 97 2.0.97
* 0.98 0.98 98 2.0.98
* 0.99 0.99 98 2.0.99
* 0.99a-m 0.99 99 2.0.99
* 1.00 1.00 100 2.1.0 [100 should be 10000]
* 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000]
* 1.0.1 png.h string is 10001 2.1.0
* 1.0.1a-e identical to the 10002 from here on, the shared library
* 1.0.2 source version) 10002 is 2.V where V is the source code
* 1.0.2a-b 10003 version, except as noted.
* 1.0.3 10003
* 1.0.3a-d 10004
* 1.0.4 10004
* 1.0.4a-f 10005
* 1.0.5 (+ 2 patches) 10005
* 1.0.5a-d 10006
* 1.0.5e-r 10100 (not source compatible)
* 1.0.5s-v 10006 (not binary compatible)
* 1.0.6 (+ 3 patches) 10006 (still binary incompatible)
* 1.0.6d-f 10007 (still binary incompatible)
* 1.0.6g 10007
* 1.0.6h 10007 10.6h (testing xy.z so-numbering)
* 1.0.6i 10007 10.6i
* 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
* 1.0.7beta11-18 10007 2.1.0.7beta11-18 (binary compatible)
* 1.0.7rc1-2 10007 2.1.0.7rc1-2 (binary compatible)
* planned:
* 1.0.6patch4 (w/4 patches) 10006 2.1.0.6 (binary compatible)
* 1.0.7 10007 (still compatible)
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@@ -60,7 +64,9 @@
* PNG_PNGLIB_VER macro, which is not used within libpng but is available
* for applications, is an unsigned integer of the form xyyzz corresponding
* to the source version x.y.z (leading zeros in y and z). Beta versions
* are given the previous public release number plus a letter or two.
* 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".
*
* Binary incompatibility exists only when applications make direct access
* to the info_ptr or png_ptr members through png.h, and the compiled
@@ -74,32 +80,49 @@
/*
* COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
*
* If you modify libpng you may insert additional notices after this sentence.
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* (libpng versions 0.5, May 1995, through 0.88, January 1996)
* libpng versions 1.0.6, March 20, 2000, through 1.0.7rc2, June 28, 2000, are
* Copyright (c) 2000 Glenn Randers-Pehrson
* Distributed according to the same disclaimer and license as libpng-1.0.5
* with the following individuals added to the list of Contributing Authors:
*
* Simon-Pierre Cadieux
* Eric S. Raymond
* Gilles Vollant
*
* libpng versions 0.97, January 1998, through 1.0.5, October 15, 1999, are
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* Distributed according to the same disclaimer and license as libpng-0.96,
* with the following individuals added to the list of Contributing Authors:
*
* Tom Lane
* Glenn Randers-Pehrson
* Willem van Schaik
*
* libpng versions 0.89, June 1996, through 0.96, May 1997, are
* Copyright (c) 1996, 1997 Andreas Dilger
* (libpng versions 0.89c, June 1996, through 0.96, May 1997)
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (libpng versions 0.97, January 1998, through 1.0.6i, May 1, 2000)
*
* For the purposes of this copyright and license, "Contributing Authors"
* is defined as the following set of individuals:
* Distributed according to the same disclaimer and license as libpng-0.88,
* with the following individuals added to the list of Contributing Authors:
*
* John Bowler
* Kevin Bracey
* Sam Bushell
* Andreas Dilger
* Magnus Holmgren
* Tom Lane
* Dave Martindale
* Glenn Randers-Pehrson
* Eric S. Raymond
* Greg Roelofs
* Tom Tanner
*
* libpng versions 0.5, May 1995, through 0.88, January 1996, are
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
*
* For the purposes of this copyright and license, "Contributing Authors"
* is defined as the following set of individuals:
*
* Andreas Dilger
* Dave Martindale
* Guy Eric Schalnat
* Paul Schmidt
* Tom Tanner
* Willem van Schaik
* Tim Wegner
*
* The PNG Reference Library is supplied "AS IS". The Contributing Authors
@@ -156,13 +179,13 @@
* Y2K compliance in libpng:
* =========================
*
* May 1, 2000
* June 28, 2000
*
* 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 1.0.6i are Y2K compliant. It is my belief that earlier
* upward through 1.0.7rc2 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
@@ -208,8 +231,8 @@
* PNG Development Group
*/
#ifndef _PNG_H
#define _PNG_H
#ifndef PNG_H
#define PNG_H
/* This is not the place to learn how to use libpng. The file libpng.txt
* describes how to use libpng, and the file example.c summarizes it
@@ -217,6 +240,30 @@
* at the actual function definitions and structure components.
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.7rc2"
#define PNG_LIBPNG_VER_SONUM 2
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 0
#define PNG_LIBPNG_VER_RELEASE 7
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 2
/* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros.
* 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 10007 /* 1.0.7 */
/* Note to maintainer: update this number in scripts/pngdef.pas as well */
#ifndef PNG_VERSION_INFO_ONLY
/* include the compression library's header */
#include "zlib.h"
@@ -239,25 +286,14 @@ extern "C" {
* which applications aren't expected to use directly.
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.6i"
/* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros.
* 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=bugfix */
#define PNG_LIBPNG_VER 10007 /* 1.0.7 */
/* Note to maintainer: update this number in scripts/pngdef.pas as well */
/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */
#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
/* Version information for C files, stored in png.c. This had better match
* the version above.
*/
#ifdef PNG_USE_GLOBAL_ARRAYS
PNG_EXPORT_VAR (char) png_libpng_ver[12]; /* need room for 99.99.99aa */
PNG_EXPORT_VAR (char) png_libpng_ver[12]; /* need room for 99.99.99-patch-aa0*/
/* Note to maintainer: increase to 18 at the next opportunity */
#else
#define png_libpng_ver png_get_header_ver(NULL)
#endif
@@ -366,11 +402,13 @@ typedef struct png_text_struct
png_charp text; /* comment, may be an empty string (ie "")
or a NULL pointer */
png_size_t text_length; /* length of the text string */
#ifdef PNG_iTXt_SUPPORTED
png_size_t itxt_length; /* length of the itxt string */
png_charp lang; /* language code, 0-79 characters
or a NULL pointer */
png_charp lang_key; /* keyword translated UTF-8 string, 0 or more
chars or a NULL pointer */
#endif
} png_text;
typedef png_text FAR * png_textp;
typedef png_text FAR * FAR * png_textpp;
@@ -813,31 +851,33 @@ typedef png_row_info FAR * FAR * png_row_infopp;
typedef struct png_struct_def png_struct;
typedef png_struct FAR * png_structp;
typedef void (*png_error_ptr) PNGARG((png_structp, png_const_charp));
typedef void (*png_rw_ptr) PNGARG((png_structp, png_bytep, png_size_t));
typedef void (*png_flush_ptr) PNGARG((png_structp));
typedef void (*png_read_status_ptr) PNGARG((png_structp, png_uint_32, int));
typedef void (*png_write_status_ptr) PNGARG((png_structp, png_uint_32, int));
typedef void (PNGAPI *png_error_ptr) PNGARG((png_structp, png_const_charp));
typedef void (PNGAPI *png_rw_ptr) PNGARG((png_structp, png_bytep, png_size_t));
typedef void (PNGAPI *png_flush_ptr) PNGARG((png_structp));
typedef void (PNGAPI *png_read_status_ptr) PNGARG((png_structp, png_uint_32,
int));
typedef void (PNGAPI *png_write_status_ptr) PNGARG((png_structp, png_uint_32,
int));
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
typedef void (*png_progressive_info_ptr) PNGARG((png_structp, png_infop));
typedef void (*png_progressive_end_ptr) PNGARG((png_structp, png_infop));
typedef void (*png_progressive_row_ptr) PNGARG((png_structp, png_bytep,
typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, png_infop));
typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop));
typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep,
png_uint_32, int));
#endif
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED)
typedef void (*png_user_transform_ptr) PNGARG((png_structp,
typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp,
png_row_infop, png_bytep));
#endif
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
typedef int (*png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp));
typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp));
#endif
#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
typedef void (*png_unknown_chunk_ptr) PNGARG((png_structp));
typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp));
#endif
/* Transform masks for the high-level interface */
@@ -852,7 +892,7 @@ typedef void (*png_unknown_chunk_ptr) PNGARG((png_structp));
#define PNG_TRANSFORM_BGR 0x0080 /* read and write */
#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */
#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */
#define PNG_TRANSFORM_INVERT_ALPHA 0x0200 /* read and write */
#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */
#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only */
typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t));
@@ -1100,9 +1140,9 @@ struct png_struct_def
};
/* This prevents a compiler error in png_get_copyright() in png.c if png.c
and png.h are both at * version 1.0.6i
and png.h are both at * version 1.0.7rc2
*/
typedef png_structp version_1_0_6i;
typedef png_structp version_1_0_7rc2;
typedef png_struct FAR * FAR * png_structpp;
@@ -1112,6 +1152,9 @@ typedef png_struct FAR * FAR * png_structpp;
* a simple one line description of the use of each function.
*/
/* Returns the version number of the library */
extern PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void));
/* Tell lib we have already handled the first <num_bytes> magic bytes.
* Handling more than 8 bytes from the beginning of the file is an error.
*/
@@ -1292,7 +1335,7 @@ extern PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
/* Invert monocrome files */
/* Invert monochrome files */
extern PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr));
#endif
@@ -1664,14 +1707,15 @@ extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr,
#define PNG_FREE_ICCP 0x0010
#define PNG_FREE_SPLT 0x0020
#define PNG_FREE_ROWS 0x0040
#define PNG_FREE_PCAL 0x0080 /* not used any more */
#define PNG_FREE_SCAL 0x0100 /* not used any more */
#define PNG_FREE_PCAL 0x0080
#define PNG_FREE_SCAL 0x0100
#define PNG_FREE_UNKN 0x0200
#define PNG_FREE_LIST 0x0400
#define PNG_FREE_PLTE 0x1000
#define PNG_FREE_TRNS 0x2000
#define PNG_FREE_TEXT 0x4000
#define PNG_FREE_ALL 0x3fff
#define PNG_FREE_ALL 0x7fff
#define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */
#ifdef PNG_USER_MEM_SUPPORTED
extern PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr,
@@ -1786,13 +1830,13 @@ png_ptr, png_infop info_ptr));
#endif
/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */
extern PNG_EXPORT(png_uint_32, png_get_x_offset_pixels) PNGARG((png_structp
extern PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp
png_ptr, png_infop info_ptr));
extern PNG_EXPORT(png_uint_32, png_get_y_offset_pixels) PNGARG((png_structp
extern PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp
png_ptr, png_infop info_ptr));
extern PNG_EXPORT(png_uint_32, png_get_x_offset_microns) PNGARG((png_structp
extern PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp
png_ptr, png_infop info_ptr));
extern PNG_EXPORT(png_uint_32, png_get_y_offset_microns) PNGARG((png_structp
extern PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp
png_ptr, png_infop info_ptr));
#endif /* PNG_EASY_ACCESS_SUPPORTED */
@@ -2050,6 +2094,12 @@ extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp
png_ptr, png_infop info_ptr, png_unknown_chunkpp entries));
#endif
/* 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,
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,
png_infop info_ptr, int mask));
#if defined(PNG_INFO_IMAGE_SUPPORTED)
/* The "params" pointer is currently not used and is for future expansion. */
extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr,
@@ -2069,19 +2119,28 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
*/
#ifdef PNG_DEBUG
#if (PNG_DEBUG > 0)
#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
#include <crtdbg.h>
#define png_debug(l,m) if (PNG_DEBUG > l) _RPT0(_CRT_WARN,m)
#define png_debug1(l,m,p1) if (PNG_DEBUG > l) _RPT1(_CRT_WARN,m,p1)
#define png_debug2(l,m,p1,p2) if (PNG_DEBUG > l) _RPT2(_CRT_WARN,m,p1,p2)
#else /* PNG_DEBUG_FILE || !_MSC_VER */
#ifndef PNG_DEBUG_FILE
#define PNG_DEBUG_FILE stderr
#endif /* PNG_DEBUG_FILE */
#define png_debug(l,m) if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))))
#define png_debug1(l,m,p1) if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1)
#define png_debug2(l,m,p1,p2) if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1,p2)
#define png_debug(l,m) \
if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))))
#define png_debug1(l,m,p1) \
if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1)
#define png_debug2(l,m,p1,p2) \
if (PNG_DEBUG > l) \
fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
(l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1,p2)
#endif /* _MSC_VER */
#endif /* (PNG_DEBUG > 0) */
#endif /* PNG_DEBUG */
#ifndef png_debug
@@ -2102,7 +2161,7 @@ extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)
extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.6i - May 1, 2000 (header)\n"
" libpng version 1.0.7rc2 - June 28, 2000 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on
@@ -2168,8 +2227,6 @@ extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
#define PNG_WROTE_tIME 0x200
#define PNG_WROTE_INFO_BEFORE_PLTE 0x400
#define PNG_BACKGROUND_IS_GRAY 0x800
#define PNG_CREATED_READ_STRUCT 0x1000
#define PNG_CREATED_WRITE_STRUCT 0x2000
/* flags for the transformations the PNG library does on the image data */
#define PNG_BGR 0x0001
@@ -2225,6 +2282,7 @@ extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
#define PNG_FLAG_FREE_HIST 0x4000
#define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000L
#define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000L
#define PNG_FLAG_LIBRARY_MISMATCH 0x20000L
/* For use in png_set_keep_unknown, png_handle_as_unknown */
#define HANDLE_CHUNK_AS_DEFAULT 0
@@ -2330,14 +2388,24 @@ PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */
/* Initialize png_ptr struct for reading, and allocate any other memory.
* (old interface - NOT DLL EXPORTED).
* (old interface - DEPRECATED).
*/
extern void png_read_init PNGARG((png_structp png_ptr));
extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr));
#define png_read_init(png_ptr) png_read_init_2(png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct), sizeof(png_info));
extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t
png_info_size));
/* Initialize png_ptr struct for writing, and allocate any other memory.
* (old interface - NOT DLL EXPORTED).
* (old interface - DEPRECATED).
*/
extern void png_write_init PNGARG((png_structp png_ptr));
extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr));
#define png_write_init(png_ptr) png_write_init_2(png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct), sizeof(png_info));
extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t
png_info_size));
/* Allocate memory for an internal libpng struct */
PNG_EXTERN png_voidp png_create_struct PNGARG((int type));
@@ -2885,5 +2953,6 @@ PNG_EXTERN void png_push_read_iTXt PNGARG((png_structp png_ptr,
}
#endif
#endif /* PNG_VERSION_INFO_ONLY */
/* do not put anything past this line */
#endif /* _PNG_H */
#endif /* PNG_H */