ShuriZma
/
stella
mirror of https://github.com/stella-emu/stella.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Updated PNG lib to latest version.

This commit is contained in:
Stephen Anthony 2022-10-08 22:22:48 -02:30
parent c8192955b3
commit 3ed08681ef
11 changed files with 101 additions and 110 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/lib/libpng/png.c
View File

@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2022 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_37 Your_png_h_is_not_version_1_6_37; typedef png_libpng_version_1_6_38 Your_png_h_is_not_version_1_6_38;
#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
@ -720,7 +720,7 @@ png_init_io(png_structrp png_ptr, png_FILE_p fp)
* *
* Where UNSIGNED_MAX is the appropriate maximum unsigned value, so when the * Where UNSIGNED_MAX is the appropriate maximum unsigned value, so when the
* negative integral value is added the result will be an unsigned value * negative integral value is added the result will be an unsigned value
* correspnding to the 2's complement representation. * corresponding to the 2's complement representation.
*/ */
void PNGAPI void PNGAPI
png_save_int_32(png_bytep buf, png_int_32 i) png_save_int_32(png_bytep buf, png_int_32 i)
@ -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 1.6.37" PNG_STRING_NEWLINE \ "libpng version 1.6.38" PNG_STRING_NEWLINE \
"Copyright (c) 2018-2019 Cosmin Truta" PNG_STRING_NEWLINE \ "Copyright (c) 2018-2022 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 \
@ -1843,12 +1843,12 @@ png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace,
# ifdef PNG_WARNINGS_SUPPORTED # ifdef PNG_WARNINGS_SUPPORTED
else else
{ {
char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114*/ char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114 */
pos = png_safecat(message, (sizeof message), pos, pos = png_safecat(message, (sizeof message), pos,
png_format_number(number, number+(sizeof number), png_format_number(number, number+(sizeof number),
PNG_NUMBER_FORMAT_x, value)); PNG_NUMBER_FORMAT_x, value));
pos = png_safecat(message, (sizeof message), pos, "h: "); /*+2 = 116*/ pos = png_safecat(message, (sizeof message), pos, "h: "); /* +2 = 116 */
} }
# endif # endif
/* The 'reason' is an arbitrary message, allow +79 maximum 195 */ /* The 'reason' is an arbitrary message, allow +79 maximum 195 */

26
src/lib/libpng/png.h
View File

@ -1,9 +1,9 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.6.37 - April 14, 2019 * libpng version 1.6.38 - September 14, 2022
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2022 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 1.6.37, April 2019: * libpng versions 1.6.36, December 2018, through 1.6.38, September 2022:
* 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) 1995-2020 The PNG Reference Library Authors. * * Copyright (c) 1995-2022 The PNG Reference Library Authors.
* * Copyright (c) 2018-2019 Cosmin Truta. * * Copyright (c) 2018-2022 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]
* ... * ...
* 1.6.37 16 10637 16.so.16.37[.0] * 1.6.38 16 10638 16.so.16.38[.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 "1.6.37" #define PNG_LIBPNG_VER_STRING "1.6.38"
#define PNG_HEADER_VERSION_STRING " libpng version 1.6.37 - April 14, 2019\n" #define PNG_HEADER_VERSION_STRING " libpng version 1.6.38 - September 14, 2022\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 37 #define PNG_LIBPNG_VER_RELEASE 38
/* 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 10637 /* 1.6.37 */ #define PNG_LIBPNG_VER 10638 /* 1.6.38 */
/* 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_37; typedef char* png_libpng_version_1_6_38;
/* 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.
* *
@ -1446,7 +1446,7 @@ PNG_EXPORT(66, void, png_set_crc_action, (png_structrp png_ptr, int crit_action,
* mainly useful for testing, as the defaults should work with most users. * mainly useful for testing, as the defaults should work with most users.
* Those users who are tight on memory or want faster performance at the * Those users who are tight on memory or want faster performance at the
* expense of compression can modify them. See the compression library * expense of compression can modify them. See the compression library
* header file (zlib.h) for an explination of the compression functions. * header file (zlib.h) for an explanation 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
@ -1501,7 +1501,7 @@ PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed,
* 0 - 9, corresponding directly to the zlib compression levels 0 - 9 * 0 - 9, corresponding directly to the zlib compression levels 0 - 9
* (0 - no compression, 9 - "maximal" compression). Note that tests have * (0 - no compression, 9 - "maximal" compression). Note that tests have
* shown that zlib compression levels 3-6 usually perform as well as level 9 * shown that zlib compression levels 3-6 usually perform as well as level 9
* for PNG images, and do considerably fewer caclulations. In the future, * for PNG images, and do considerably fewer calculations. In the future,
* these values may not correspond directly to the zlib compression levels. * these values may not correspond directly to the zlib compression levels.
*/ */
#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED #ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED

14
src/lib/libpng/pngconf.h
View File

@ -1,9 +1,9 @@
/* pngconf.h - machine-configurable file for libpng /* pngconf.h - machine-configurable file for libpng
* *
* libpng version 1.6.37 * libpng version 1.6.38
* *
* Copyright (c) 2018-2019 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
* 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.
@ -180,8 +180,8 @@
* compiler-specific macros to the values required to change the calling * compiler-specific macros to the values required to change the calling
* conventions of the various functions. * conventions of the various functions.
*/ */
#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\ #if defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || \
defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) defined(__CYGWIN__)
/* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
* MinGW on any architecture currently supported by Windows. Also includes * MinGW on any architecture currently supported by Windows. Also includes
* Watcom builds but these need special treatment because they are not * Watcom builds but these need special treatment because they are not
@ -230,7 +230,7 @@
* the type. * the type.
*/ */
# ifndef PNG_EXPORT_TYPE # ifndef PNG_EXPORT_TYPE
# define PNG_EXPORT_TYPE(name) name PNG_IMPEXP # define PNG_EXPORT_TYPE(type) type PNG_IMPEXP
# endif # endif
# define PNG_DLL_EXPORT __export # define PNG_DLL_EXPORT __export
# else /* newer compiler */ # else /* newer compiler */
@ -450,7 +450,7 @@
# define PNG_FP_EXPORT(ordinal, type, name, args)\ # define PNG_FP_EXPORT(ordinal, type, name, args)\
PNG_EXPORT(ordinal, type, name, args); PNG_EXPORT(ordinal, type, name, args);
# else /* No floating point APIs */ # else /* No floating point APIs */
# define PNG_FP_EXPORT(ordinal, name, name, args) # define PNG_FP_EXPORT(ordinal, type, name, args)
# endif # endif
#endif #endif
#ifndef PNG_FIXED_EXPORT /* A fixed point API. */ #ifndef PNG_FIXED_EXPORT /* A fixed point API. */
@ -458,7 +458,7 @@
# define PNG_FIXED_EXPORT(ordinal, type, name, args)\ # define PNG_FIXED_EXPORT(ordinal, type, name, args)\
PNG_EXPORT(ordinal, type, name, args); PNG_EXPORT(ordinal, type, name, args);
# else /* No fixed point APIs */ # else /* No fixed point APIs */
# define PNG_FIXED_EXPORT(ordinal, name, name, args) # define PNG_FIXED_EXPORT(ordinal, type, name, args)
# endif # endif
#endif #endif

14
src/lib/libpng/pngget.c
View File

@ -1151,7 +1151,7 @@ png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr,
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED #ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
png_byte PNGAPI png_byte PNGAPI
png_get_rgb_to_gray_status (png_const_structrp png_ptr) png_get_rgb_to_gray_status(png_const_structrp png_ptr)
{ {
return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0); return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0);
} }
@ -1192,27 +1192,27 @@ png_get_compression_buffer_size(png_const_structrp png_ptr)
/* These functions were added to libpng 1.2.6 and were enabled /* These functions were added to libpng 1.2.6 and were enabled
* by default in libpng-1.4.0 */ * by default in libpng-1.4.0 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_user_width_max (png_const_structrp png_ptr) png_get_user_width_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_width_max : 0); return (png_ptr ? png_ptr->user_width_max : 0);
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_user_height_max (png_const_structrp png_ptr) png_get_user_height_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_height_max : 0); return (png_ptr ? png_ptr->user_height_max : 0);
} }
/* This function was added to libpng 1.4.0 */ /* This function was added to libpng 1.4.0 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_chunk_cache_max (png_const_structrp png_ptr) png_get_chunk_cache_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_chunk_cache_max : 0); return (png_ptr ? png_ptr->user_chunk_cache_max : 0);
} }
/* This function was added to libpng 1.4.1 */ /* This function was added to libpng 1.4.1 */
png_alloc_size_t PNGAPI png_alloc_size_t PNGAPI
png_get_chunk_malloc_max (png_const_structrp png_ptr) png_get_chunk_malloc_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_chunk_malloc_max : 0); return (png_ptr ? png_ptr->user_chunk_malloc_max : 0);
} }
@ -1221,13 +1221,13 @@ png_get_chunk_malloc_max (png_const_structrp png_ptr)
/* These functions were added to libpng 1.4.0 */ /* These functions were added to libpng 1.4.0 */
#ifdef PNG_IO_STATE_SUPPORTED #ifdef PNG_IO_STATE_SUPPORTED
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_io_state (png_const_structrp png_ptr) png_get_io_state(png_const_structrp png_ptr)
{ {
return png_ptr->io_state; return png_ptr->io_state;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_io_chunk_type (png_const_structrp png_ptr) png_get_io_chunk_type(png_const_structrp png_ptr)
{ {
return png_ptr->chunk_name; return png_ptr->chunk_name;
} }

65
src/lib/libpng/pngpriv.h
View File

@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng /* pngpriv.h - private declarations for use inside libpng
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2022 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.
@ -174,7 +174,7 @@
# else /* !defined __ARM_NEON__ */ # else /* !defined __ARM_NEON__ */
/* The 'intrinsics' code simply won't compile without this -mfpu=neon: /* The 'intrinsics' code simply won't compile without this -mfpu=neon:
*/ */
# if !defined(__aarch64__) # if !defined(__aarch64__) && !defined(_M_ARM64)
/* The assembler code currently does not work on ARM64 */ /* The assembler code currently does not work on ARM64 */
# define PNG_ARM_NEON_IMPLEMENTATION 2 # define PNG_ARM_NEON_IMPLEMENTATION 2
# endif /* __aarch64__ */ # endif /* __aarch64__ */
@ -185,6 +185,8 @@
/* Use the intrinsics code by default. */ /* Use the intrinsics code by default. */
# define PNG_ARM_NEON_IMPLEMENTATION 1 # define PNG_ARM_NEON_IMPLEMENTATION 1
# endif # endif
#else /* PNG_ARM_NEON_OPT == 0 */
# define PNG_ARM_NEON_IMPLEMENTATION 0
#endif /* PNG_ARM_NEON_OPT > 0 */ #endif /* PNG_ARM_NEON_OPT > 0 */
#ifndef PNG_MIPS_MSA_OPT #ifndef PNG_MIPS_MSA_OPT
@ -263,11 +265,15 @@
# ifndef PNG_MIPS_MSA_IMPLEMENTATION # ifndef PNG_MIPS_MSA_IMPLEMENTATION
# define PNG_MIPS_MSA_IMPLEMENTATION 1 # define PNG_MIPS_MSA_IMPLEMENTATION 1
# endif # endif
#else
# define PNG_MIPS_MSA_IMPLEMENTATION 0
#endif /* PNG_MIPS_MSA_OPT > 0 */ #endif /* PNG_MIPS_MSA_OPT > 0 */
#if PNG_POWERPC_VSX_OPT > 0 #if PNG_POWERPC_VSX_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx # define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
# define PNG_POWERPC_VSX_IMPLEMENTATION 1 # define PNG_POWERPC_VSX_IMPLEMENTATION 1
#else
# define PNG_POWERPC_VSX_IMPLEMENTATION 0
#endif #endif
@ -492,16 +498,7 @@
static_cast<type>(static_cast<const void*>(value)) static_cast<type>(static_cast<const void*>(value))
#else #else
# define png_voidcast(type, value) (value) # define png_voidcast(type, value) (value)
# ifdef _WIN64 # define png_constcast(type, value) ((type)(void*)(const void*)(value))
# ifdef __GNUC__
typedef unsigned long long png_ptruint;
# else
typedef unsigned __int64 png_ptruint;
# endif
# else
typedef unsigned long png_ptruint;
# endif
# define png_constcast(type, value) ((type)(png_ptruint)(const void*)(value))
# define png_aligncast(type, value) ((void*)(value)) # define png_aligncast(type, value) ((void*)(value))
# define png_aligncastconst(type, value) ((const void*)(value)) # define png_aligncastconst(type, value) ((const void*)(value))
#endif /* __cplusplus */ #endif /* __cplusplus */
@ -543,9 +540,8 @@
# include <alloc.h> # include <alloc.h>
#endif #endif
#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \ #if defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
defined(_WIN32) || defined(__WIN32__) # include <windows.h>
# include <windows.h> /* defines _WINDOWS_ macro */
#endif #endif
#endif /* PNG_VERSION_INFO_ONLY */ #endif /* PNG_VERSION_INFO_ONLY */
@ -554,24 +550,20 @@
* functions that are passed far data must be model-independent. * functions that are passed far data must be model-independent.
*/ */
/* Memory model/platform independent fns */ /* Platform-independent functions */
#ifndef PNG_ABORT #ifndef PNG_ABORT
# ifdef _WINDOWS_ # define PNG_ABORT() abort()
# define PNG_ABORT() ExitProcess(0)
# else
# define PNG_ABORT() abort()
# endif
#endif #endif
/* These macros may need to be architecture dependent. */ /* These macros may need to be architecture dependent. */
#define PNG_ALIGN_NONE 0 /* do not use data alignment */ #define PNG_ALIGN_NONE 0 /* do not use data alignment */
#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */ #define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */
#ifdef offsetof #ifdef offsetof
# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */ # define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */
#else #else
# define PNG_ALIGN_OFFSET -1 /* prevent the use of this */ # define PNG_ALIGN_OFFSET -1 /* prevent the use of this */
#endif #endif
#define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */ #define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */
#ifndef PNG_ALIGN_TYPE #ifndef PNG_ALIGN_TYPE
/* Default to using aligned access optimizations and requiring alignment to a /* Default to using aligned access optimizations and requiring alignment to a
@ -585,26 +577,25 @@
/* This is used because in some compiler implementations non-aligned /* This is used because in some compiler implementations non-aligned
* structure members are supported, so the offsetof approach below fails. * structure members are supported, so the offsetof approach below fails.
* Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access * Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access
* is good for performance. Do not do this unless you have tested the result * is good for performance. Do not do this unless you have tested the
* and understand it. * result and understand it.
*/ */
# define png_alignof(type) (sizeof (type)) # define png_alignof(type) (sizeof(type))
#else #else
# if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET # if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET
# define png_alignof(type) offsetof(struct{char c; type t;}, t) # define png_alignof(type) offsetof(struct{char c; type t;}, t)
# else # else
# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS # if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS
# define png_alignof(type) (1) # define png_alignof(type) 1
# endif # endif
/* Else leave png_alignof undefined to prevent use thereof */ /* Else leave png_alignof undefined to prevent use thereof */
# endif # endif
#endif #endif
/* This implicitly assumes alignment is always to a power of 2. */ /* This implicitly assumes alignment is always a multiple of 2. */
#ifdef png_alignof #ifdef png_alignof
# define png_isaligned(ptr, type)\ # define png_isaligned(ptr, type) \
(((type)((const char*)ptr-(const char*)0) & \ (((type)(size_t)((const void*)(ptr)) & (type)(png_alignof(type)-1)) == 0)
(type)(png_alignof(type)-1)) == 0)
#else #else
# define png_isaligned(ptr, type) 0 # define png_isaligned(ptr, type) 0
#endif #endif

3
src/lib/libpng/pngread.c
View File

@ -3452,7 +3452,6 @@ png_image_read_background(png_voidp argument)
for (pass = 0; pass < passes; ++pass) for (pass = 0; pass < passes; ++pass)
{ {
png_bytep row = png_voidcast(png_bytep, display->first_row);
unsigned int startx, stepx, stepy; unsigned int startx, stepx, stepy;
png_uint_32 y; png_uint_32 y;
@ -3557,8 +3556,6 @@ png_image_read_background(png_voidp argument)
inrow += 2; /* gray and alpha channel */ inrow += 2; /* gray and alpha channel */
} }
row += display->row_bytes;
} }
} }
} }

2
src/lib/libpng/pngrtran.c
View File

@ -21,7 +21,7 @@
#ifdef PNG_ARM_NEON_IMPLEMENTATION #ifdef PNG_ARM_NEON_IMPLEMENTATION
# if PNG_ARM_NEON_IMPLEMENTATION == 1 # if PNG_ARM_NEON_IMPLEMENTATION == 1
# define PNG_ARM_NEON_INTRINSICS_AVAILABLE # define PNG_ARM_NEON_INTRINSICS_AVAILABLE
# if defined(_MSC_VER) && defined(_M_ARM64) # if defined(_MSC_VER) && !defined(__clang__) && defined(_M_ARM64)
# include <arm64_neon.h> # include <arm64_neon.h>
# else # else
# include <arm_neon.h> # include <arm_neon.h>

36
src/lib/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
* *
* Copyright (c) 2018 Cosmin Truta * Copyright (c) 2018-2022 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.
@ -301,7 +301,6 @@ png_read_buffer(png_structrp png_ptr, png_alloc_size_t new_size, int warn)
if (buffer != NULL && new_size > png_ptr->read_buffer_size) if (buffer != NULL && new_size > png_ptr->read_buffer_size)
{ {
png_ptr->read_buffer = NULL;
png_ptr->read_buffer = NULL; png_ptr->read_buffer = NULL;
png_ptr->read_buffer_size = 0; png_ptr->read_buffer_size = 0;
png_free(png_ptr, buffer); png_free(png_ptr, buffer);
@ -2076,21 +2075,22 @@ png_handle_eXIf(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
png_byte buf[1]; png_byte buf[1];
png_crc_read(png_ptr, buf, 1); png_crc_read(png_ptr, buf, 1);
info_ptr->eXIf_buf[i] = buf[0]; info_ptr->eXIf_buf[i] = buf[0];
if (i == 1 && buf[0] != 'M' && buf[0] != 'I' if (i == 1)
&& info_ptr->eXIf_buf[0] != buf[0])
{ {
png_crc_finish(png_ptr, length); if ((buf[0] != 'M' && buf[0] != 'I') ||
png_chunk_benign_error(png_ptr, "incorrect byte-order specifier"); (info_ptr->eXIf_buf[0] != buf[0]))
png_free(png_ptr, info_ptr->eXIf_buf); {
info_ptr->eXIf_buf = NULL; png_crc_finish(png_ptr, length - 2);
return; png_chunk_benign_error(png_ptr, "incorrect byte-order specifier");
png_free(png_ptr, info_ptr->eXIf_buf);
info_ptr->eXIf_buf = NULL;
return;
}
} }
} }
if (png_crc_finish(png_ptr, 0) != 0) if (png_crc_finish(png_ptr, 0) == 0)
return; png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf);
png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf);
png_free(png_ptr, info_ptr->eXIf_buf); png_free(png_ptr, info_ptr->eXIf_buf);
info_ptr->eXIf_buf = NULL; info_ptr->eXIf_buf = NULL;
@ -2126,8 +2126,9 @@ png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
num = length / 2 ; num = length / 2 ;
if (num != (unsigned int) png_ptr->num_palette || if (length != num * 2 ||
num > (unsigned int) PNG_MAX_PALETTE_LENGTH) num != (unsigned int)png_ptr->num_palette ||
num > (unsigned int)PNG_MAX_PALETTE_LENGTH)
{ {
png_crc_finish(png_ptr, length); png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "invalid"); png_chunk_benign_error(png_ptr, "invalid");
@ -4621,14 +4622,13 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
*/ */
{ {
png_bytep temp = png_ptr->big_row_buf + 32; png_bytep temp = png_ptr->big_row_buf + 32;
int extra = (int)((temp - (png_bytep)0) & 0x0f); size_t extra = (size_t)temp & 0x0f;
png_ptr->row_buf = temp - extra - 1/*filter byte*/; png_ptr->row_buf = temp - extra - 1/*filter byte*/;
temp = png_ptr->big_prev_row + 32; temp = png_ptr->big_prev_row + 32;
extra = (int)((temp - (png_bytep)0) & 0x0f); extra = (size_t)temp & 0x0f;
png_ptr->prev_row = temp - extra - 1/*filter byte*/; png_ptr->prev_row = temp - extra - 1/*filter byte*/;
} }
#else #else
/* Use 31 bytes of padding before and 17 bytes after row_buf. */ /* Use 31 bytes of padding before and 17 bytes after row_buf. */
png_ptr->row_buf = png_ptr->big_row_buf + 31; png_ptr->row_buf = png_ptr->big_row_buf + 31;

13
src/lib/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
* *
* Copyright (c) 2018 Cosmin Truta * Copyright (c) 2018-2022 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.
@ -1019,6 +1019,9 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
info_ptr->trans_alpha = png_voidcast(png_bytep, info_ptr->trans_alpha = png_voidcast(png_bytep,
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;
} }
png_ptr->trans_alpha = info_ptr->trans_alpha; png_ptr->trans_alpha = info_ptr->trans_alpha;
} }
@ -1326,7 +1329,7 @@ png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr,
#ifdef PNG_MNG_FEATURES_SUPPORTED #ifdef PNG_MNG_FEATURES_SUPPORTED
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_permit_mng_features (png_structrp png_ptr, png_uint_32 mng_features) png_permit_mng_features(png_structrp png_ptr, png_uint_32 mng_features)
{ {
png_debug(1, "in png_permit_mng_features"); png_debug(1, "in png_permit_mng_features");
@ -1633,7 +1636,7 @@ png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask)
#ifdef PNG_SET_USER_LIMITS_SUPPORTED #ifdef PNG_SET_USER_LIMITS_SUPPORTED
/* This function was added to libpng 1.2.6 */ /* This function was added to libpng 1.2.6 */
void PNGAPI void PNGAPI
png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max, png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max,
png_uint_32 user_height_max) png_uint_32 user_height_max)
{ {
/* Images with dimensions larger than these limits will be /* Images with dimensions larger than these limits will be
@ -1649,7 +1652,7 @@ png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max,
/* This function was added to libpng 1.4.0 */ /* This function was added to libpng 1.4.0 */
void PNGAPI void PNGAPI
png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max) png_set_chunk_cache_max(png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
{ {
if (png_ptr != NULL) if (png_ptr != NULL)
png_ptr->user_chunk_cache_max = user_chunk_cache_max; png_ptr->user_chunk_cache_max = user_chunk_cache_max;
@ -1657,7 +1660,7 @@ png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
/* This function was added to libpng 1.4.1 */ /* This function was added to libpng 1.4.1 */
void PNGAPI void PNGAPI
png_set_chunk_malloc_max (png_structrp png_ptr, png_set_chunk_malloc_max(png_structrp png_ptr,
png_alloc_size_t user_chunk_malloc_max) png_alloc_size_t user_chunk_malloc_max)
{ {
if (png_ptr != NULL) if (png_ptr != NULL)

12
src/lib/libpng/pngstruct.h
View File

@ -1,7 +1,7 @@
/* pngstruct.h - header file for PNG reference library /* pngstruct.h - header file for PNG reference library
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2022 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.
@ -334,18 +334,8 @@ struct png_struct_def
size_t current_buffer_size; /* amount of data now in current_buffer */ size_t current_buffer_size; /* amount of data now in current_buffer */
int process_mode; /* what push library is currently doing */ int process_mode; /* what push library is currently doing */
int cur_palette; /* current push library palette index */ int cur_palette; /* current push library palette index */
#endif /* PROGRESSIVE_READ */ #endif /* PROGRESSIVE_READ */
#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
/* For the Borland special 64K segment handler */
png_bytepp offset_table_ptr;
png_bytep offset_table;
png_uint_16 offset_table_number;
png_uint_16 offset_table_count;
png_uint_16 offset_table_count_free;
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED #ifdef PNG_READ_QUANTIZE_SUPPORTED
png_bytep palette_lookup; /* lookup table for quantizing */ png_bytep palette_lookup; /* lookup table for quantizing */
png_bytep quantize_index; /* index translation for palette files */ png_bytep quantize_index; /* index translation for palette files */

12
src/lib/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
* *
* Copyright (c) 2018-2019 Cosmin Truta * Copyright (c) 2018-2022 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.
@ -489,6 +489,16 @@ png_convert_from_time_t(png_timep ptime, time_t ttime)
png_debug(1, "in png_convert_from_time_t"); png_debug(1, "in png_convert_from_time_t");
tbuf = gmtime(&ttime); tbuf = gmtime(&ttime);
if (tbuf == NULL)
{
/* TODO: add a safe function which takes a png_ptr argument and raises
* a png_error if the ttime argument is invalid and the call to gmtime
* fails as a consequence.
*/
memset(ptime, 0, sizeof(*ptime));
return;
}
png_convert_from_struct_tm(ptime, tbuf); png_convert_from_struct_tm(ptime, tbuf);
} }
#endif #endif