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Updated included PNG library to version 1.6.2. 

git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2718 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena 2013-05-04 16:20:18 +00:00
parent d05bca9734
commit f0ab412b33
11 changed files with 65 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/libpng/png.c
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@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)
@ -14,7 +14,7 @@
#include "pngpriv.h" #include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef png_libpng_version_1_6_1 Your_png_h_is_not_version_1_6_1; typedef png_libpng_version_1_6_2 Your_png_h_is_not_version_1_6_2;
/* Tells libpng that we have already handled the first "num_bytes" bytes /* Tells libpng that we have already handled the first "num_bytes" bytes
* of the PNG file signature. If the PNG data is embedded into another * of the PNG file signature. If the PNG data is embedded into another
@ -115,7 +115,7 @@ png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, png_size_t length)
{ {
int need_crc = 1; int need_crc = 1;
if (PNG_CHUNK_ANCILLIARY(png_ptr->chunk_name)) if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))
{ {
if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
(PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
@ -768,13 +768,13 @@ png_get_copyright(png_const_structrp png_ptr)
#else #else
# ifdef __STDC__ # ifdef __STDC__
return PNG_STRING_NEWLINE \ return PNG_STRING_NEWLINE \
"libpng version 1.6.1 - March 28, 2013" PNG_STRING_NEWLINE \ "libpng version 1.6.2 - April 25, 2013" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2013 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \ "Copyright (c) 1998-2013 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE; PNG_STRING_NEWLINE;
# else # else
return "libpng version 1.6.1 - March 28, 2013\ return "libpng version 1.6.2 - April 25, 2013\
Copyright (c) 1998-2013 Glenn Randers-Pehrson\ Copyright (c) 1998-2013 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -1866,7 +1866,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
"length does not match profile"); "length does not match profile");
temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */ temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */
if (temp > 357913930 || /* (2^32-4-132)/12: maxium possible tag count */ if (temp > 357913930 || /* (2^32-4-132)/12: maximum possible tag count */
profile_length < 132+12*temp) /* truncated tag table */ profile_length < 132+12*temp) /* truncated tag table */
return png_icc_profile_error(png_ptr, colorspace, name, temp, return png_icc_profile_error(png_ptr, colorspace, name, temp,
"tag count too large"); "tag count too large");
@ -2275,7 +2275,10 @@ png_colorspace_set_ICC(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_icc_check_tag_table(png_ptr, colorspace, name, profile_length, png_icc_check_tag_table(png_ptr, colorspace, name, profile_length,
profile)) profile))
{ {
png_icc_set_sRGB(png_ptr, colorspace, profile, 0); # ifdef PNG_sRGB_SUPPORTED
/* If no sRGB support, don't try storing sRGB information */
png_icc_set_sRGB(png_ptr, colorspace, profile, 0);
# endif
return 1; return 1;
} }

25
src/libpng/png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.6.1 - March 28, 2013 * libpng version 1.6.2 - April 25, 2013
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)
@ -11,7 +11,7 @@
* 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 1.6.1 - March 28, 2013: Glenn * libpng versions 0.97, January 1998, through 1.6.2 - April 25, 2013: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -169,9 +169,12 @@
* 1.6.0beta01-40 16 10600 16.so.16.0[.0] * 1.6.0beta01-40 16 10600 16.so.16.0[.0]
* 1.6.0rc01-08 16 10600 16.so.16.0[.0] * 1.6.0rc01-08 16 10600 16.so.16.0[.0]
* 1.6.0 16 10600 16.so.16.0[.0] * 1.6.0 16 10600 16.so.16.0[.0]
* 1.6.1beta01-10 16 10601 16.so.16.1[.0] * 1.6.1beta01-09 16 10601 16.so.16.1[.0]
* 1.6.1rc01 16 10601 16.so.16.1[.0] * 1.6.1rc01 16 10601 16.so.16.1[.0]
* 1.6.1 16 10601 16.so.16.1[.0] * 1.6.1 16 10601 16.so.16.1[.0]
* 1.6.2beta01 16 10602 16.so.16.2[.0]
* 1.6.2rc01-06 16 10602 16.so.16.2[.0]
* 1.6.2 16 10602 16.so.16.2[.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
@ -203,7 +206,7 @@
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* *
* libpng versions 1.2.6, August 15, 2004, through 1.6.1, March 28, 2013, are * libpng versions 1.2.6, August 15, 2004, through 1.6.2, April 25, 2013, are
* Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are * Copyright (c) 2004, 2006-2013 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:
@ -315,13 +318,13 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* March 28, 2013 * April 25, 2013
* *
* 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 1.6.1 are Y2K compliant. It is my belief that * upward through 1.6.2 are Y2K compliant. It is my belief that
* earlier versions were also Y2K compliant. * earlier versions were also Y2K compliant.
* *
* Libpng only has two year fields. One is a 2-byte unsigned integer * Libpng only has two year fields. One is a 2-byte unsigned integer
@ -381,9 +384,9 @@
*/ */
/* 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 "1.6.1" #define PNG_LIBPNG_VER_STRING "1.6.2"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.6.1 - March 28, 2013\n" " libpng version 1.6.2 - April 25, 2013\n"
#define PNG_LIBPNG_VER_SONUM 16 #define PNG_LIBPNG_VER_SONUM 16
#define PNG_LIBPNG_VER_DLLNUM 16 #define PNG_LIBPNG_VER_DLLNUM 16
@ -391,7 +394,7 @@
/* 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 6 #define PNG_LIBPNG_VER_MINOR 6
#define PNG_LIBPNG_VER_RELEASE 1 #define PNG_LIBPNG_VER_RELEASE 2
/* 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:
@ -422,7 +425,7 @@
* 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 10601 /* 1.6.1 */ #define PNG_LIBPNG_VER 10602 /* 1.6.2 */
/* Library configuration: these options cannot be changed after /* Library configuration: these options cannot be changed after
* the library has been built. * the library has been built.
@ -527,7 +530,7 @@ extern "C" {
/* 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 char* png_libpng_version_1_6_1; typedef char* png_libpng_version_1_6_2;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. /* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
* *

2
src/libpng/pngconf.h
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@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng version 1.6.1 - March 28, 2013 * libpng version 1.6.2 - April 25, 2013
* *
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
src/libpng/pnglibconf.h
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@ -1,6 +1,6 @@
/* pnglibconf.h - library build configuration */ /* pnglibconf.h - library build configuration */
/* libpng version 1.6.1 - March 28, 2013 */ /* libpng version 1.6.2 - April 25, 2013 */
/* Copyright (c) 1998-2012 Glenn Randers-Pehrson */ /* Copyright (c) 1998-2012 Glenn Randers-Pehrson */

6
src/libpng/pngpriv.h
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@ -6,7 +6,7 @@
* (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.)
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -675,8 +675,8 @@
(void)(PNG_STRING_FROM_CHUNK(s,c), ((char*)(s))[4] = 0) (void)(PNG_STRING_FROM_CHUNK(s,c), ((char*)(s))[4] = 0)
/* Test on flag values as defined in the spec (section 5.4): */ /* Test on flag values as defined in the spec (section 5.4): */
#define PNG_CHUNK_ANCILLIARY(c) (1 & ((c) >> 29)) #define PNG_CHUNK_ANCILLARY(c) (1 & ((c) >> 29))
#define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLIARY(c)) #define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLARY(c))
#define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21)) #define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21))
#define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13)) #define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13))
#define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5)) #define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5))

7
src/libpng/pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers /* pngrtran.c - transforms the data in a row for PNG readers
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)
@ -223,6 +223,8 @@ translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma,
*/ */
# ifdef PNG_READ_sRGB_SUPPORTED # ifdef PNG_READ_sRGB_SUPPORTED
png_ptr->flags |= PNG_FLAG_ASSUME_sRGB; png_ptr->flags |= PNG_FLAG_ASSUME_sRGB;
# else
PNG_UNUSED(png_ptr)
# endif # endif
if (is_screen) if (is_screen)
output_gamma = PNG_GAMMA_sRGB; output_gamma = PNG_GAMMA_sRGB;
@ -1056,9 +1058,6 @@ png_set_read_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr
{ {
png_debug(1, "in png_set_read_user_transform_fn"); png_debug(1, "in png_set_read_user_transform_fn");
if (!png_rtran_ok(png_ptr, 0))
return;
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
png_ptr->transformations |= PNG_USER_TRANSFORM; png_ptr->transformations |= PNG_USER_TRANSFORM;
png_ptr->read_user_transform_fn = read_user_transform_fn; png_ptr->read_user_transform_fn = read_user_transform_fn;

27
src/libpng/pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)
@ -221,7 +221,7 @@ png_crc_finish(png_structrp png_ptr, png_uint_32 skip)
if (png_crc_error(png_ptr)) if (png_crc_error(png_ptr))
{ {
if (PNG_CHUNK_ANCILLIARY(png_ptr->chunk_name) ? if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) ?
!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) : !(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) :
(png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE)) (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE))
{ {
@ -250,7 +250,7 @@ png_crc_error(png_structrp png_ptr)
png_uint_32 crc; png_uint_32 crc;
int need_crc = 1; int need_crc = 1;
if (PNG_CHUNK_ANCILLIARY(png_ptr->chunk_name)) if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))
{ {
if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
(PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
@ -2857,7 +2857,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
if (keep == PNG_HANDLE_CHUNK_ALWAYS || if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
(keep == PNG_HANDLE_CHUNK_IF_SAFE && (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
PNG_CHUNK_ANCILLIARY(png_ptr->chunk_name))) PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
{ {
if (!png_cache_unknown_chunk(png_ptr, length)) if (!png_cache_unknown_chunk(png_ptr, length))
keep = PNG_HANDLE_CHUNK_NEVER; keep = PNG_HANDLE_CHUNK_NEVER;
@ -2891,7 +2891,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
*/ */
if (keep == PNG_HANDLE_CHUNK_ALWAYS || if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
(keep == PNG_HANDLE_CHUNK_IF_SAFE && (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
PNG_CHUNK_ANCILLIARY(png_ptr->chunk_name))) PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
{ {
# ifdef PNG_USER_LIMITS_SUPPORTED # ifdef PNG_USER_LIMITS_SUPPORTED
switch (png_ptr->user_chunk_cache_max) switch (png_ptr->user_chunk_cache_max)
@ -3875,7 +3875,7 @@ png_init_filter_functions(png_structrp pp)
* the filter is the first transformation performed on the row data. It is * the filter is the first transformation performed on the row data. It is
* performed in place, therefore an implementation can be selected based on * performed in place, therefore an implementation can be selected based on
* the image pixel format. If the implementation depends on image width then * the image pixel format. If the implementation depends on image width then
* take care to ensure that it works corretly if the image is interlaced - * take care to ensure that it works correctly if the image is interlaced -
* interlacing causes the actual row width to vary. * interlacing causes the actual row width to vary.
*/ */
{ {
@ -3983,7 +3983,7 @@ png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
png_ptr->zstream.avail_out = out; png_ptr->zstream.avail_out = out;
} }
else /* check for end */ else /* after last row, checking for end */
{ {
png_ptr->zstream.next_out = tmpbuf; png_ptr->zstream.next_out = tmpbuf;
png_ptr->zstream.avail_out = (sizeof tmpbuf); png_ptr->zstream.avail_out = (sizeof tmpbuf);
@ -3998,10 +3998,13 @@ png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
*/ */
ret = inflate(&png_ptr->zstream, Z_NO_FLUSH); ret = inflate(&png_ptr->zstream, Z_NO_FLUSH);
/* Take the unconsumed output back (so, in the 'check' case this just /* Take the unconsumed output back. */
* counts up). if (output != NULL)
*/ avail_out += png_ptr->zstream.avail_out;
avail_out += png_ptr->zstream.avail_out;
else /* avail_out counts the extra bytes */
avail_out += (sizeof tmpbuf) - png_ptr->zstream.avail_out;
png_ptr->zstream.avail_out = 0; png_ptr->zstream.avail_out = 0;
if (ret == Z_STREAM_END) if (ret == Z_STREAM_END)
@ -4040,7 +4043,7 @@ png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
if (output != NULL) if (output != NULL)
png_error(png_ptr, "Not enough image data"); png_error(png_ptr, "Not enough image data");
else /* checking */ else /* the deflate stream contained extra data */
png_chunk_benign_error(png_ptr, "Too much image data"); png_chunk_benign_error(png_ptr, "Too much image data");
} }
} }

2
src/libpng/pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)

13
src/libpng/pngtrans.c
View File

@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* Last changed in libpng 1.6.0 [February 14, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)
@ -782,6 +782,17 @@ png_set_user_transform_info(png_structrp png_ptr, png_voidp
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
(png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
{
png_app_error(png_ptr,
"info change after png_start_read_image or png_read_update_info");
return;
}
#endif
png_ptr->user_transform_ptr = user_transform_ptr; png_ptr->user_transform_ptr = user_transform_ptr;
png_ptr->user_transform_depth = (png_byte)user_transform_depth; png_ptr->user_transform_depth = (png_byte)user_transform_depth;
png_ptr->user_transform_channels = (png_byte)user_transform_channels; png_ptr->user_transform_channels = (png_byte)user_transform_channels;

2
src/libpng/pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)

5
src/libpng/pngwutil.c
View File

@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file /* pngwutil.c - utilities to write a PNG file
* *
* Last changed in libpng 1.6.0 [February 14, 2013] * Last changed in libpng 1.6.2 [April 25, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2013 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.)
@ -1744,6 +1744,9 @@ png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key,
{ {
if (comp.input_len > PNG_UINT_31_MAX-prefix_len) if (comp.input_len > PNG_UINT_31_MAX-prefix_len)
png_error(png_ptr, "iTXt: uncompressed text too long"); png_error(png_ptr, "iTXt: uncompressed text too long");
/* So the string will fit in a chunk: */
comp.output_len = (png_uint_32)/*SAFE*/comp.input_len;
} }
png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len); png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len);