From 3ed08681efbcdb283fbf3c52b20a36626dcb4797 Mon Sep 17 00:00:00 2001 From: Stephen Anthony Date: Sat, 8 Oct 2022 22:22:48 -0230 Subject: [PATCH] Updated PNG lib to latest version. --- src/lib/libpng/png.c | 14 ++++---- src/lib/libpng/png.h | 26 +++++++-------- src/lib/libpng/pngconf.h | 14 ++++---- src/lib/libpng/pngget.c | 14 ++++---- src/lib/libpng/pngpriv.h | 65 ++++++++++++++++---------------------- src/lib/libpng/pngread.c | 3 -- src/lib/libpng/pngrtran.c | 2 +- src/lib/libpng/pngrutil.c | 36 ++++++++++----------- src/lib/libpng/pngset.c | 13 +++++--- src/lib/libpng/pngstruct.h | 12 +------ src/lib/libpng/pngwrite.c | 12 ++++++- 11 files changed, 101 insertions(+), 110 deletions(-) diff --git a/src/lib/libpng/png.c b/src/lib/libpng/png.c index 757c755f9..fc0956426 100644 --- a/src/lib/libpng/png.c +++ b/src/lib/libpng/png.c @@ -1,7 +1,7 @@ /* 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) 1996-1997 Andreas Dilger * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. @@ -14,7 +14,7 @@ #include "pngpriv.h" /* 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__ /* 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 * 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 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 #else return PNG_STRING_NEWLINE \ - "libpng version 1.6.37" PNG_STRING_NEWLINE \ - "Copyright (c) 2018-2019 Cosmin Truta" PNG_STRING_NEWLINE \ + "libpng version 1.6.38" PNG_STRING_NEWLINE \ + "Copyright (c) 2018-2022 Cosmin Truta" PNG_STRING_NEWLINE \ "Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \ 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 else { - char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114*/ + char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114 */ pos = png_safecat(message, (sizeof message), pos, png_format_number(number, number+(sizeof number), 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 /* The 'reason' is an arbitrary message, allow +79 maximum 195 */ diff --git a/src/lib/libpng/png.h b/src/lib/libpng/png.h index bf8a3dfa9..5fb494fb1 100644 --- a/src/lib/libpng/png.h +++ b/src/lib/libpng/png.h @@ -1,9 +1,9 @@ /* 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) 1996-1997 Andreas Dilger * 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 0.97, January 1998, through 1.6.35, July 2018: * 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 * See also "Contributing Authors", below. */ @@ -27,8 +27,8 @@ * PNG Reference Library License version 2 * --------------------------------------- * - * * Copyright (c) 1995-2020 The PNG Reference Library Authors. - * * Copyright (c) 2018-2019 Cosmin Truta. + * * Copyright (c) 1995-2022 The PNG Reference Library Authors. + * * Copyright (c) 2018-2022 Cosmin Truta. * * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. * * Copyright (c) 1996-1997 Andreas Dilger. * * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. @@ -239,7 +239,7 @@ * ... * 1.5.30 15 10530 15.so.15.30[.0] * ... - * 1.6.37 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 * 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 */ -#define PNG_LIBPNG_VER_STRING "1.6.37" -#define PNG_HEADER_VERSION_STRING " libpng version 1.6.37 - April 14, 2019\n" +#define PNG_LIBPNG_VER_STRING "1.6.38" +#define PNG_HEADER_VERSION_STRING " libpng version 1.6.38 - September 14, 2022\n" #define PNG_LIBPNG_VER_SONUM 16 #define PNG_LIBPNG_VER_DLLNUM 16 @@ -287,7 +287,7 @@ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #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 * development version. [Deprecated] @@ -318,7 +318,7 @@ * From version 1.0.1 it is: * 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 * 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 * 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. * @@ -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. * Those users who are tight on memory or want faster performance at the * 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 @@ -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 - no compression, 9 - "maximal" compression). Note that tests have * 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. */ #ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED diff --git a/src/lib/libpng/pngconf.h b/src/lib/libpng/pngconf.h index b5f468ae5..89d28f83a 100644 --- a/src/lib/libpng/pngconf.h +++ b/src/lib/libpng/pngconf.h @@ -1,9 +1,9 @@ /* 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) 1996-1997 Andreas Dilger * 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 * conventions of the various functions. */ -#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\ - defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) +#if defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || \ + defined(__CYGWIN__) /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or * MinGW on any architecture currently supported by Windows. Also includes * Watcom builds but these need special treatment because they are not @@ -230,7 +230,7 @@ * the type. */ # ifndef PNG_EXPORT_TYPE -# define PNG_EXPORT_TYPE(name) name PNG_IMPEXP +# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP # endif # define PNG_DLL_EXPORT __export # else /* newer compiler */ @@ -450,7 +450,7 @@ # define PNG_FP_EXPORT(ordinal, type, name, args)\ PNG_EXPORT(ordinal, type, name, args); # else /* No floating point APIs */ -# define PNG_FP_EXPORT(ordinal, name, name, args) +# define PNG_FP_EXPORT(ordinal, type, name, args) # endif #endif #ifndef PNG_FIXED_EXPORT /* A fixed point API. */ @@ -458,7 +458,7 @@ # define PNG_FIXED_EXPORT(ordinal, type, name, args)\ PNG_EXPORT(ordinal, type, name, args); # else /* No fixed point APIs */ -# define PNG_FIXED_EXPORT(ordinal, name, name, args) +# define PNG_FIXED_EXPORT(ordinal, type, name, args) # endif #endif diff --git a/src/lib/libpng/pngget.c b/src/lib/libpng/pngget.c index 5abf1efd9..e44933c0d 100644 --- a/src/lib/libpng/pngget.c +++ b/src/lib/libpng/pngget.c @@ -1151,7 +1151,7 @@ png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr, #ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED 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); } @@ -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 * by default in libpng-1.4.0 */ 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); } 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); } /* This function was added to libpng 1.4.0 */ 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); } /* This function was added to libpng 1.4.1 */ 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); } @@ -1221,13 +1221,13 @@ png_get_chunk_malloc_max (png_const_structrp png_ptr) /* These functions were added to libpng 1.4.0 */ #ifdef PNG_IO_STATE_SUPPORTED 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; } 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; } diff --git a/src/lib/libpng/pngpriv.h b/src/lib/libpng/pngpriv.h index 583c26f9b..2e426cf47 100644 --- a/src/lib/libpng/pngpriv.h +++ b/src/lib/libpng/pngpriv.h @@ -1,7 +1,7 @@ /* 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) 1996-1997 Andreas Dilger * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. @@ -174,7 +174,7 @@ # else /* !defined __ARM_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 */ # define PNG_ARM_NEON_IMPLEMENTATION 2 # endif /* __aarch64__ */ @@ -185,6 +185,8 @@ /* Use the intrinsics code by default. */ # define PNG_ARM_NEON_IMPLEMENTATION 1 # endif +#else /* PNG_ARM_NEON_OPT == 0 */ +# define PNG_ARM_NEON_IMPLEMENTATION 0 #endif /* PNG_ARM_NEON_OPT > 0 */ #ifndef PNG_MIPS_MSA_OPT @@ -263,11 +265,15 @@ # ifndef PNG_MIPS_MSA_IMPLEMENTATION # define PNG_MIPS_MSA_IMPLEMENTATION 1 # endif +#else +# define PNG_MIPS_MSA_IMPLEMENTATION 0 #endif /* PNG_MIPS_MSA_OPT > 0 */ #if PNG_POWERPC_VSX_OPT > 0 # define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx # define PNG_POWERPC_VSX_IMPLEMENTATION 1 +#else +# define PNG_POWERPC_VSX_IMPLEMENTATION 0 #endif @@ -492,16 +498,7 @@ static_cast(static_cast(value)) #else # define png_voidcast(type, value) (value) -# ifdef _WIN64 -# 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_constcast(type, value) ((type)(void*)(const void*)(value)) # define png_aligncast(type, value) ((void*)(value)) # define png_aligncastconst(type, value) ((const void*)(value)) #endif /* __cplusplus */ @@ -543,9 +540,8 @@ # include #endif -#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \ - defined(_WIN32) || defined(__WIN32__) -# include /* defines _WINDOWS_ macro */ +#if defined(_WIN32) || defined(__WIN32__) || defined(__NT__) +# include #endif #endif /* PNG_VERSION_INFO_ONLY */ @@ -554,24 +550,20 @@ * functions that are passed far data must be model-independent. */ -/* Memory model/platform independent fns */ +/* Platform-independent functions */ #ifndef PNG_ABORT -# ifdef _WINDOWS_ -# define PNG_ABORT() ExitProcess(0) -# else -# define PNG_ABORT() abort() -# endif +# define PNG_ABORT() abort() #endif /* These macros may need to be architecture dependent. */ -#define PNG_ALIGN_NONE 0 /* do not use data alignment */ -#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */ +#define PNG_ALIGN_NONE 0 /* do not use data alignment */ +#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */ #ifdef offsetof -# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */ +# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */ #else # define PNG_ALIGN_OFFSET -1 /* prevent the use of this */ #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 /* 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 * structure members are supported, so the offsetof approach below fails. * 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 - * and understand it. + * is good for performance. Do not do this unless you have tested the + * result and understand it. */ -# define png_alignof(type) (sizeof (type)) +# define png_alignof(type) (sizeof(type)) #else # 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 -# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS -# define png_alignof(type) (1) -# endif - /* Else leave png_alignof undefined to prevent use thereof */ +# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS +# define png_alignof(type) 1 +# endif + /* Else leave png_alignof undefined to prevent use thereof */ # 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 -# define png_isaligned(ptr, type)\ - (((type)((const char*)ptr-(const char*)0) & \ - (type)(png_alignof(type)-1)) == 0) +# define png_isaligned(ptr, type) \ + (((type)(size_t)((const void*)(ptr)) & (type)(png_alignof(type)-1)) == 0) #else # define png_isaligned(ptr, type) 0 #endif diff --git a/src/lib/libpng/pngread.c b/src/lib/libpng/pngread.c index 8fa7d9f16..5ab922403 100644 --- a/src/lib/libpng/pngread.c +++ b/src/lib/libpng/pngread.c @@ -3452,7 +3452,6 @@ png_image_read_background(png_voidp argument) for (pass = 0; pass < passes; ++pass) { - png_bytep row = png_voidcast(png_bytep, display->first_row); unsigned int startx, stepx, stepy; png_uint_32 y; @@ -3557,8 +3556,6 @@ png_image_read_background(png_voidp argument) inrow += 2; /* gray and alpha channel */ } - - row += display->row_bytes; } } } diff --git a/src/lib/libpng/pngrtran.c b/src/lib/libpng/pngrtran.c index 9a8fad9f4..238f5afe7 100644 --- a/src/lib/libpng/pngrtran.c +++ b/src/lib/libpng/pngrtran.c @@ -21,7 +21,7 @@ #ifdef PNG_ARM_NEON_IMPLEMENTATION # if PNG_ARM_NEON_IMPLEMENTATION == 1 # define PNG_ARM_NEON_INTRINSICS_AVAILABLE -# if defined(_MSC_VER) && defined(_M_ARM64) +# if defined(_MSC_VER) && !defined(__clang__) && defined(_M_ARM64) # include # else # include diff --git a/src/lib/libpng/pngrutil.c b/src/lib/libpng/pngrutil.c index d5fa08c39..ca060dd15 100644 --- a/src/lib/libpng/pngrutil.c +++ b/src/lib/libpng/pngrutil.c @@ -1,7 +1,7 @@ /* 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) 1996-1997 Andreas Dilger * 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) { - png_ptr->read_buffer = NULL; png_ptr->read_buffer = NULL; png_ptr->read_buffer_size = 0; 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_crc_read(png_ptr, buf, 1); info_ptr->eXIf_buf[i] = buf[0]; - if (i == 1 && buf[0] != 'M' && buf[0] != 'I' - && info_ptr->eXIf_buf[0] != buf[0]) + if (i == 1) { - png_crc_finish(png_ptr, length); - 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 ((buf[0] != 'M' && buf[0] != 'I') || + (info_ptr->eXIf_buf[0] != buf[0])) + { + png_crc_finish(png_ptr, length - 2); + 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) - return; - - png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf); + if (png_crc_finish(png_ptr, 0) == 0) + png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf); png_free(png_ptr, info_ptr->eXIf_buf); 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 ; - if (num != (unsigned int) png_ptr->num_palette || - num > (unsigned int) PNG_MAX_PALETTE_LENGTH) + if (length != num * 2 || + num != (unsigned int)png_ptr->num_palette || + num > (unsigned int)PNG_MAX_PALETTE_LENGTH) { png_crc_finish(png_ptr, length); 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; - int extra = (int)((temp - (png_bytep)0) & 0x0f); + size_t extra = (size_t)temp & 0x0f; png_ptr->row_buf = temp - extra - 1/*filter byte*/; 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*/; } - #else /* Use 31 bytes of padding before and 17 bytes after row_buf. */ png_ptr->row_buf = png_ptr->big_row_buf + 31; diff --git a/src/lib/libpng/pngset.c b/src/lib/libpng/pngset.c index ec75dbe36..8c372cf41 100644 --- a/src/lib/libpng/pngset.c +++ b/src/lib/libpng/pngset.c @@ -1,7 +1,7 @@ /* 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) 1996-1997 Andreas Dilger * 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, png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH)); 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; } @@ -1326,7 +1329,7 @@ png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr, #ifdef PNG_MNG_FEATURES_SUPPORTED 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"); @@ -1633,7 +1636,7 @@ png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask) #ifdef PNG_SET_USER_LIMITS_SUPPORTED /* This function was added to libpng 1.2.6 */ 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) { /* 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 */ 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) 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 */ 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) { if (png_ptr != NULL) diff --git a/src/lib/libpng/pngstruct.h b/src/lib/libpng/pngstruct.h index 8bdc7ce46..e591d94d5 100644 --- a/src/lib/libpng/pngstruct.h +++ b/src/lib/libpng/pngstruct.h @@ -1,7 +1,7 @@ /* 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) 1996-1997 Andreas Dilger * 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 */ int process_mode; /* what push library is currently doing */ int cur_palette; /* current push library palette index */ - #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 png_bytep palette_lookup; /* lookup table for quantizing */ png_bytep quantize_index; /* index translation for palette files */ diff --git a/src/lib/libpng/pngwrite.c b/src/lib/libpng/pngwrite.c index 59377a4dd..06c45d16a 100644 --- a/src/lib/libpng/pngwrite.c +++ b/src/lib/libpng/pngwrite.c @@ -1,7 +1,7 @@ /* 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) 1996-1997 Andreas Dilger * 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"); 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); } #endif