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libpng: Update to upstream 1.6.40

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(cherry picked from commit 0baca62734)
This commit is contained in:
Rémi Verschelde 2023-08-04 15:40:27 +02:00
parent 980101a8d2
commit c85eff5a69
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GPG key ID: C3336907360768E1
10 changed files with 68 additions and 65 deletions
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2
thirdparty/README.md vendored
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@ -186,7 +186,7 @@ Files extracted from upstream source:
## libpng ## libpng
- Upstream: http://libpng.org/pub/png/libpng.html - Upstream: http://libpng.org/pub/png/libpng.html
- Version: 1.6.38 (0a158f3506502dfa23edfc42790dfaed82efba17, 2022) - Version: 1.6.40 (f135775ad4e5d4408d2e12ffcc71bb36e6b48551, 2023)
- License: libpng/zlib - License: libpng/zlib
Files extracted from upstream source: Files extracted from upstream source:

4
thirdparty/libpng/LICENSE vendored
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@ -4,8 +4,8 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
PNG Reference Library License version 2 PNG Reference Library License version 2
--------------------------------------- ---------------------------------------
* Copyright (c) 1995-2022 The PNG Reference Library Authors. * Copyright (c) 1995-2023 The PNG Reference Library Authors.
* Copyright (c) 2018-2022 Cosmin Truta. * Copyright (c) 2018-2023 Cosmin Truta.
* Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. * Copyright (c) 2000-2002, 2004, 2006-2018 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.

8
thirdparty/libpng/png.c vendored
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@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 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.
@ -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_39 Your_png_h_is_not_version_1_6_39; typedef png_libpng_version_1_6_40 Your_png_h_is_not_version_1_6_40;
#ifdef __GNUC__ #ifdef __GNUC__
/* The version tests may need to be added to, but the problem warning has /* The version tests may need to be added to, but the problem warning has
@ -815,8 +815,8 @@ png_get_copyright(png_const_structrp png_ptr)
return PNG_STRING_COPYRIGHT return PNG_STRING_COPYRIGHT
#else #else
return PNG_STRING_NEWLINE \ return PNG_STRING_NEWLINE \
"libpng version 1.6.39" PNG_STRING_NEWLINE \ "libpng version 1.6.40" PNG_STRING_NEWLINE \
"Copyright (c) 2018-2022 Cosmin Truta" PNG_STRING_NEWLINE \ "Copyright (c) 2018-2023 Cosmin Truta" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \ "Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \ PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \

22
thirdparty/libpng/png.h vendored
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@ -1,9 +1,9 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.6.39 - November 20, 2022 * libpng version 1.6.40
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 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.
@ -15,7 +15,7 @@
* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.6.35, July 2018: * libpng versions 0.97, January 1998, through 1.6.35, July 2018:
* Glenn Randers-Pehrson * Glenn Randers-Pehrson
* libpng versions 1.6.36, December 2018, through 1.6.39, November 2022: * libpng versions 1.6.36, December 2018, through 1.6.40, June 2023:
* Cosmin Truta * Cosmin Truta
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
*/ */
@ -27,8 +27,8 @@
* PNG Reference Library License version 2 * PNG Reference Library License version 2
* --------------------------------------- * ---------------------------------------
* *
* * Copyright (c) 1995-2022 The PNG Reference Library Authors. * * Copyright (c) 1995-2023 The PNG Reference Library Authors.
* * Copyright (c) 2018-2022 Cosmin Truta. * * Copyright (c) 2018-2023 Cosmin Truta.
* * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. * * Copyright (c) 2000-2002, 2004, 2006-2018 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.
@ -239,7 +239,7 @@
* ... * ...
* 1.5.30 15 10530 15.so.15.30[.0] * 1.5.30 15 10530 15.so.15.30[.0]
* ... * ...
* 1.6.39 16 10639 16.so.16.39[.0] * 1.6.40 16 10640 16.so.16.40[.0]
* *
* Henceforth the source version will match the shared-library major and * Henceforth the source version will match the shared-library major and
* minor numbers; the shared-library major version number will be used for * minor numbers; the shared-library major version number will be used for
@ -278,8 +278,8 @@
*/ */
/* 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 "1.6.39" #define PNG_LIBPNG_VER_STRING "1.6.40"
#define PNG_HEADER_VERSION_STRING " libpng version 1.6.39 - November 20, 2022\n" #define PNG_HEADER_VERSION_STRING " libpng version 1.6.40 - June 21, 2023\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
@ -287,7 +287,7 @@
/* 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 39 #define PNG_LIBPNG_VER_RELEASE 40
/* This should be zero for a public release, or non-zero for a /* This should be zero for a public release, or non-zero for a
* development version. [Deprecated] * development version. [Deprecated]
@ -318,7 +318,7 @@
* From version 1.0.1 it is: * From version 1.0.1 it is:
* XXYYZZ, where XX=major, YY=minor, ZZ=release * XXYYZZ, where XX=major, YY=minor, ZZ=release
*/ */
#define PNG_LIBPNG_VER 10639 /* 1.6.39 */ #define PNG_LIBPNG_VER 10640 /* 1.6.40 */
/* 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.
@ -428,7 +428,7 @@ 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_39; typedef char* png_libpng_version_1_6_40;
/* 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
thirdparty/libpng/pngconf.h vendored
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@ -1,7 +1,7 @@
/* pngconf.h - machine-configurable file for libpng /* pngconf.h - machine-configurable file for libpng
* *
* libpng version 1.6.39 * libpng version 1.6.40
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson

13
thirdparty/libpng/pngget.c vendored
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@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* Copyright (c) 2018 Cosmin Truta * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 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.
@ -21,7 +21,18 @@ png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 flag) png_uint_32 flag)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
#ifdef PNG_READ_tRNS_SUPPORTED
/* png_handle_PLTE() may have canceled a valid tRNS chunk but left the
* 'valid' flag for the detection of duplicate chunks. Do not report a
* valid tRNS chunk in this case.
*/
if (flag == PNG_INFO_tRNS && png_ptr->num_trans == 0)
return(0);
#endif
return(info_ptr->valid & flag); return(info_ptr->valid & flag);
}
return(0); return(0);
} }

4
thirdparty/libpng/pnglibconf.h vendored
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@ -1,8 +1,8 @@
/* pnglibconf.h - library build configuration */ /* pnglibconf.h - library build configuration */
/* libpng version 1.6.39 */ /* libpng version 1.6.40 */
/* Copyright (c) 2018-2022 Cosmin Truta */ /* Copyright (c) 2018-2023 Cosmin Truta */
/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */ /* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */ /* This code is released under the libpng license. */

6
thirdparty/libpng/pngpriv.h vendored
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@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng /* pngpriv.h - private declarations for use inside libpng
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 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.
@ -626,7 +626,7 @@
#define PNG_BACKGROUND_IS_GRAY 0x800U #define PNG_BACKGROUND_IS_GRAY 0x800U
#define PNG_HAVE_PNG_SIGNATURE 0x1000U #define PNG_HAVE_PNG_SIGNATURE 0x1000U
#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */ #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
/* 0x4000U (unused) */ #define PNG_WROTE_eXIf 0x4000U
#define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */ #define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */
/* Flags for the transformations the PNG library does on the image data */ /* Flags for the transformations the PNG library does on the image data */
@ -1910,7 +1910,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
*/ */
#define PNG_FP_INVALID 512 /* Available for callers as a distinct value */ #define PNG_FP_INVALID 512 /* Available for callers as a distinct value */
/* Result codes for the parser (boolean - true meants ok, false means /* Result codes for the parser (boolean - true means ok, false means
* not ok yet.) * not ok yet.)
*/ */
#define PNG_FP_MAYBE 0 /* The number may be valid in the future */ #define PNG_FP_MAYBE 0 /* The number may be valid in the future */

62
thirdparty/libpng/pngset.c vendored
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@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2018 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.
@ -137,46 +137,40 @@ png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X,
#ifdef PNG_eXIf_SUPPORTED #ifdef PNG_eXIf_SUPPORTED
void PNGAPI void PNGAPI
png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr, png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep eXIf_buf) png_bytep exif)
{ {
png_warning(png_ptr, "png_set_eXIf does not work; use png_set_eXIf_1"); png_warning(png_ptr, "png_set_eXIf does not work; use png_set_eXIf_1");
PNG_UNUSED(info_ptr) PNG_UNUSED(info_ptr)
PNG_UNUSED(eXIf_buf) PNG_UNUSED(exif)
} }
void PNGAPI void PNGAPI
png_set_eXIf_1(png_const_structrp png_ptr, png_inforp info_ptr, png_set_eXIf_1(png_const_structrp png_ptr, png_inforp info_ptr,
png_uint_32 num_exif, png_bytep eXIf_buf) png_uint_32 num_exif, png_bytep exif)
{ {
int i; png_bytep new_exif;
png_debug1(1, "in %s storage function", "eXIf"); png_debug1(1, "in %s storage function", "eXIf");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL ||
(png_ptr->mode & PNG_WROTE_eXIf) != 0)
return; return;
if (info_ptr->exif) new_exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr, num_exif));
{
png_free(png_ptr, info_ptr->exif);
info_ptr->exif = NULL;
}
info_ptr->num_exif = num_exif; if (new_exif == NULL)
info_ptr->exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr,
info_ptr->num_exif));
if (info_ptr->exif == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for eXIf chunk data"); png_warning(png_ptr, "Insufficient memory for eXIf chunk data");
return; return;
} }
memcpy(new_exif, exif, (size_t)num_exif);
png_free_data(png_ptr, info_ptr, PNG_FREE_EXIF, 0);
info_ptr->num_exif = num_exif;
info_ptr->exif = new_exif;
info_ptr->free_me |= PNG_FREE_EXIF; info_ptr->free_me |= PNG_FREE_EXIF;
for (i = 0; i < (int) info_ptr->num_exif; i++)
info_ptr->exif[i] = eXIf_buf[i];
info_ptr->valid |= PNG_INFO_eXIf; info_ptr->valid |= PNG_INFO_eXIf;
} }
#endif /* eXIf */ #endif /* eXIf */
@ -237,15 +231,13 @@ png_set_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->hist == NULL) if (info_ptr->hist == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for hIST chunk data"); png_warning(png_ptr, "Insufficient memory for hIST chunk data");
return; return;
} }
info_ptr->free_me |= PNG_FREE_HIST;
for (i = 0; i < info_ptr->num_palette; i++) for (i = 0; i < info_ptr->num_palette; i++)
info_ptr->hist[i] = hist[i]; info_ptr->hist[i] = hist[i];
info_ptr->free_me |= PNG_FREE_HIST;
info_ptr->valid |= PNG_INFO_hIST; info_ptr->valid |= PNG_INFO_hIST;
} }
#endif #endif
@ -367,6 +359,8 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
memcpy(info_ptr->pcal_purpose, purpose, length); memcpy(info_ptr->pcal_purpose, purpose, length);
info_ptr->free_me |= PNG_FREE_PCAL;
png_debug(3, "storing X0, X1, type, and nparams in info"); png_debug(3, "storing X0, X1, type, and nparams in info");
info_ptr->pcal_X0 = X0; info_ptr->pcal_X0 = X0;
info_ptr->pcal_X1 = X1; info_ptr->pcal_X1 = X1;
@ -383,7 +377,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_units == NULL) if (info_ptr->pcal_units == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL units"); png_warning(png_ptr, "Insufficient memory for pCAL units");
return; return;
} }
@ -395,7 +388,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_params == NULL) if (info_ptr->pcal_params == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL params"); png_warning(png_ptr, "Insufficient memory for pCAL params");
return; return;
} }
@ -413,7 +405,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_params[i] == NULL) if (info_ptr->pcal_params[i] == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL parameter"); png_warning(png_ptr, "Insufficient memory for pCAL parameter");
return; return;
} }
@ -421,7 +412,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
} }
info_ptr->valid |= PNG_INFO_pCAL; info_ptr->valid |= PNG_INFO_pCAL;
info_ptr->free_me |= PNG_FREE_PCAL;
} }
#endif #endif
@ -478,18 +468,17 @@ png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->scal_s_height == NULL) if (info_ptr->scal_s_height == NULL)
{ {
png_free (png_ptr, info_ptr->scal_s_width); png_free(png_ptr, info_ptr->scal_s_width);
info_ptr->scal_s_width = NULL; info_ptr->scal_s_width = NULL;
png_warning(png_ptr, "Memory allocation failed while processing sCAL"); png_warning(png_ptr, "Memory allocation failed while processing sCAL");
return; return;
} }
memcpy(info_ptr->scal_s_height, sheight, lengthh); memcpy(info_ptr->scal_s_height, sheight, lengthh);
info_ptr->valid |= PNG_INFO_sCAL;
info_ptr->free_me |= PNG_FREE_SCAL; info_ptr->free_me |= PNG_FREE_SCAL;
info_ptr->valid |= PNG_INFO_sCAL;
} }
# ifdef PNG_FLOATING_POINT_SUPPORTED # ifdef PNG_FLOATING_POINT_SUPPORTED
@ -625,11 +614,10 @@ png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr,
if (num_palette > 0) if (num_palette > 0)
memcpy(png_ptr->palette, palette, (unsigned int)num_palette * memcpy(png_ptr->palette, palette, (unsigned int)num_palette *
(sizeof (png_color))); (sizeof (png_color)));
info_ptr->palette = png_ptr->palette; info_ptr->palette = png_ptr->palette;
info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
info_ptr->free_me |= PNG_FREE_PLTE; info_ptr->free_me |= PNG_FREE_PLTE;
info_ptr->valid |= PNG_INFO_PLTE; info_ptr->valid |= PNG_INFO_PLTE;
} }
@ -1020,8 +1008,8 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH)); png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
memcpy(info_ptr->trans_alpha, trans_alpha, (size_t)num_trans); memcpy(info_ptr->trans_alpha, trans_alpha, (size_t)num_trans);
info_ptr->valid |= PNG_INFO_tRNS;
info_ptr->free_me |= PNG_FREE_TRNS; info_ptr->free_me |= PNG_FREE_TRNS;
info_ptr->valid |= PNG_INFO_tRNS;
} }
png_ptr->trans_alpha = info_ptr->trans_alpha; png_ptr->trans_alpha = info_ptr->trans_alpha;
} }
@ -1054,8 +1042,8 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
if (num_trans != 0) if (num_trans != 0)
{ {
info_ptr->valid |= PNG_INFO_tRNS;
info_ptr->free_me |= PNG_FREE_TRNS; info_ptr->free_me |= PNG_FREE_TRNS;
info_ptr->valid |= PNG_INFO_tRNS;
} }
} }
#endif #endif
@ -1089,11 +1077,11 @@ png_set_sPLT(png_const_structrp png_ptr,
{ {
/* Out of memory or too many chunks */ /* Out of memory or too many chunks */
png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR); png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR);
return; return;
} }
png_free(png_ptr, info_ptr->splt_palettes); png_free(png_ptr, info_ptr->splt_palettes);
info_ptr->splt_palettes = np; info_ptr->splt_palettes = np;
info_ptr->free_me |= PNG_FREE_SPLT; info_ptr->free_me |= PNG_FREE_SPLT;
@ -1247,11 +1235,11 @@ png_set_unknown_chunks(png_const_structrp png_ptr,
{ {
png_chunk_report(png_ptr, "too many unknown chunks", png_chunk_report(png_ptr, "too many unknown chunks",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
return; return;
} }
png_free(png_ptr, info_ptr->unknown_chunks); png_free(png_ptr, info_ptr->unknown_chunks);
info_ptr->unknown_chunks = np; /* safe because it is initialized */ info_ptr->unknown_chunks = np; /* safe because it is initialized */
info_ptr->free_me |= PNG_FREE_UNKN; info_ptr->free_me |= PNG_FREE_UNKN;

10
thirdparty/libpng/pngwrite.c vendored
View file

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* Copyright (c) 2018-2022 Cosmin Truta * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 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.
@ -239,7 +239,10 @@ png_write_info(png_structrp png_ptr, png_const_inforp info_ptr)
#ifdef PNG_WRITE_eXIf_SUPPORTED #ifdef PNG_WRITE_eXIf_SUPPORTED
if ((info_ptr->valid & PNG_INFO_eXIf) != 0) if ((info_ptr->valid & PNG_INFO_eXIf) != 0)
{
png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif); png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
png_ptr->mode |= PNG_WROTE_eXIf;
}
#endif #endif
#ifdef PNG_WRITE_hIST_SUPPORTED #ifdef PNG_WRITE_hIST_SUPPORTED
@ -439,8 +442,9 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
#endif #endif
#ifdef PNG_WRITE_eXIf_SUPPORTED #ifdef PNG_WRITE_eXIf_SUPPORTED
if ((info_ptr->valid & PNG_INFO_eXIf) != 0) if ((info_ptr->valid & PNG_INFO_eXIf) != 0 &&
png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif); (png_ptr->mode & PNG_WROTE_eXIf) == 0)
png_write_eXIf(png_ptr, info_ptr->exif, info_ptr->num_exif);
#endif #endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED