diff options
Diffstat (limited to 'thirdparty/libpng')
| -rw-r--r-- | thirdparty/libpng/arm/filter_neon.S | 6 | ||||
| -rw-r--r-- | thirdparty/libpng/png.c | 71 | ||||
| -rw-r--r-- | thirdparty/libpng/png.h | 42 | ||||
| -rw-r--r-- | thirdparty/libpng/pngconf.h | 2 | ||||
| -rw-r--r-- | thirdparty/libpng/pngerror.c | 8 | ||||
| -rw-r--r-- | thirdparty/libpng/pngget.c | 18 | ||||
| -rw-r--r-- | thirdparty/libpng/pnginfo.h | 5 | ||||
| -rw-r--r-- | thirdparty/libpng/pnglibconf.h | 7 | ||||
| -rw-r--r-- | thirdparty/libpng/pngpriv.h | 43 | ||||
| -rw-r--r-- | thirdparty/libpng/pngread.c | 15 | ||||
| -rw-r--r-- | thirdparty/libpng/pngrtran.c | 5 | ||||
| -rw-r--r-- | thirdparty/libpng/pngrutil.c | 44 | ||||
| -rw-r--r-- | thirdparty/libpng/pngset.c | 35 | ||||
| -rw-r--r-- | thirdparty/libpng/pngstruct.h | 3 | ||||
| -rw-r--r-- | thirdparty/libpng/pngtrans.c | 2 | ||||
| -rw-r--r-- | thirdparty/libpng/pngwrite.c | 10 | ||||
| -rw-r--r-- | thirdparty/libpng/pngwutil.c | 31 |
17 files changed, 274 insertions, 73 deletions
diff --git a/thirdparty/libpng/arm/filter_neon.S b/thirdparty/libpng/arm/filter_neon.S index 3b061d6bbf..09267c6030 100644 --- a/thirdparty/libpng/arm/filter_neon.S +++ b/thirdparty/libpng/arm/filter_neon.S @@ -1,9 +1,9 @@ /* filter_neon.S - NEON optimised filter functions * - * Copyright (c) 2014 Glenn Randers-Pehrson + * Copyright (c) 2014,2017 Glenn Randers-Pehrson * Written by Mans Rullgard, 2011. - * Last changed in libpng 1.6.16 [December 22, 2014] + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] * * This code is released under the libpng license. * For conditions of distribution and use, see the disclaimer @@ -16,7 +16,7 @@ #define PNG_VERSION_INFO_ONLY #include "../pngpriv.h" -#if defined(__linux__) && defined(__ELF__) +#if (defined(__linux__) || defined(__FreeBSD__)) && defined(__ELF__) .section .note.GNU-stack,"",%progbits /* mark stack as non-executable */ #endif diff --git a/thirdparty/libpng/png.c b/thirdparty/libpng/png.c index 40688be123..87fda0b306 100644 --- a/thirdparty/libpng/png.c +++ b/thirdparty/libpng/png.c @@ -1,7 +1,7 @@ /* png.c - location for general purpose libpng functions * - * Last changed in libpng 1.6.30 [(PENDING RELEASE)] + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -14,7 +14,27 @@ #include "pngpriv.h" /* Generate a compiler error if there is an old png.h in the search path. */ -typedef png_libpng_version_1_6_30 Your_png_h_is_not_version_1_6_30; +typedef png_libpng_version_1_6_31rc01 Your_png_h_is_not_version_1_6_31rc01; + +#ifdef __GNUC__ +/* The version tests may need to be added to, but the problem warning has + * consistently been fixed in GCC versions which obtain wide-spread release. + * The problem is that many versions of GCC rearrange comparison expressions in + * the optimizer in such a way that the results of the comparison will change + * if signed integer overflow occurs. Such comparisons are not permitted in + * ANSI C90, however GCC isn't clever enough to work out that that do not occur + * below in png_ascii_from_fp and png_muldiv, so it produces a warning with + * -Wextra. Unfortunately this is highly dependent on the optimizer and the + * machine architecture so the warning comes and goes unpredictably and is + * impossible to "fix", even were that a good idea. + */ +#if __GNUC__ == 7 && __GNUC_MINOR__ == 1 +#define GCC_STRICT_OVERFLOW 1 +#endif /* GNU 7.1.x */ +#endif /* GNU */ +#ifndef GCC_STRICT_OVERFLOW +#define GCC_STRICT_OVERFLOW 0 +#endif /* 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 @@ -595,6 +615,16 @@ png_free_data(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 mask, } #endif +#ifdef PNG_eXIf_SUPPORTED + /* Free any eXIf entry */ + if (((mask & PNG_FREE_EXIF) & info_ptr->free_me) != 0) + { + png_free(png_ptr, info_ptr->exif); + info_ptr->exif = NULL; + info_ptr->valid &= ~PNG_INFO_eXIf; + } +#endif + #ifdef PNG_hIST_SUPPORTED /* Free any hIST entry */ if (((mask & PNG_FREE_HIST) & info_ptr->free_me) != 0) @@ -776,14 +806,14 @@ png_get_copyright(png_const_structrp png_ptr) #else # ifdef __STDC__ return PNG_STRING_NEWLINE \ - "libpng version 1.6.30 - June 28, 2017" PNG_STRING_NEWLINE \ + "libpng version 1.6.31rc01 - July 19, 2017" PNG_STRING_NEWLINE \ "Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \ PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ PNG_STRING_NEWLINE; # else - return "libpng version 1.6.30 - June 28, 2017\ + return "libpng version 1.6.31rc01 - July 19, 2017\ Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\ Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; @@ -2857,6 +2887,14 @@ png_pow10(int power) /* Function to format a floating point value in ASCII with a given * precision. */ +#if GCC_STRICT_OVERFLOW +#pragma GCC diagnostic push +/* The problem arises below with exp_b10, which can never overflow because it + * comes, originally, from frexp and is therefore limited to a range which is + * typically +/-710 (log2(DBL_MAX)/log2(DBL_MIN)). + */ +#pragma GCC diagnostic warning "-Wstrict-overflow=2" +#endif /* GCC_STRICT_OVERFLOW */ void /* PRIVATE */ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, double fp, unsigned int precision) @@ -2946,7 +2984,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, */ if (exp_b10 < 0 && exp_b10 > -3) /* PLUS 3 TOTAL 4 */ { - czero = (unsigned int)(-exp_b10); /* PLUS 2 digits: TOTAL 3 */ + czero = 0U-exp_b10; /* PLUS 2 digits: TOTAL 3 */ exp_b10 = 0; /* Dot added below before first output. */ } else @@ -3087,7 +3125,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, /* Check for an exponent, if we don't need one we are * done and just need to terminate the string. At - * this point exp_b10==(-1) is effectively if flag - it got + * this point exp_b10==(-1) is effectively a flag - it got * to '-1' because of the decrement after outputting * the decimal point above (the exponent required is * *not* -1!) @@ -3101,7 +3139,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, * zeros were *not* output, so this doesn't increase * the output count. */ - while (--exp_b10 >= 0) *ascii++ = 48; + while (exp_b10-- > 0) *ascii++ = 48; *ascii = 0; @@ -3131,11 +3169,11 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, if (exp_b10 < 0) { *ascii++ = 45; --size; /* '-': PLUS 1 TOTAL 3+precision */ - uexp_b10 = (unsigned int)(-exp_b10); + uexp_b10 = 0U-exp_b10; } else - uexp_b10 = (unsigned int)exp_b10; + uexp_b10 = 0U+exp_b10; cdigits = 0; @@ -3178,6 +3216,9 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, /* Here on buffer too small. */ png_error(png_ptr, "ASCII conversion buffer too small"); } +#if GCC_STRICT_OVERFLOW +#pragma GCC diagnostic pop +#endif /* GCC_STRICT_OVERFLOW */ # endif /* FLOATING_POINT */ @@ -3291,6 +3332,15 @@ png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text) * the nearest .00001). Overflow and divide by zero are signalled in * the result, a boolean - true on success, false on overflow. */ +#if GCC_STRICT_OVERFLOW /* from above */ +/* It is not obvious which comparison below gets optimized in such a way that + * signed overflow would change the result; looking through the code does not + * reveal any tests which have the form GCC complains about, so presumably the + * optimizer is moving an add or subtract into the 'if' somewhere. + */ +#pragma GCC diagnostic push +#pragma GCC diagnostic warning "-Wstrict-overflow=2" +#endif /* GCC_STRICT_OVERFLOW */ int png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times, png_int_32 divisor) @@ -3405,6 +3455,9 @@ png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times, return 0; } +#if GCC_STRICT_OVERFLOW +#pragma GCC diagnostic pop +#endif /* GCC_STRICT_OVERFLOW */ #endif /* READ_GAMMA || INCH_CONVERSIONS */ #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED) diff --git a/thirdparty/libpng/png.h b/thirdparty/libpng/png.h index c2c4fdf251..80ecc82c3a 100644 --- a/thirdparty/libpng/png.h +++ b/thirdparty/libpng/png.h @@ -1,7 +1,7 @@ /* png.h - header file for PNG reference library * - * libpng version 1.6.30, June 28, 2017 + * libpng version 1.6.31rc01, July 19, 2017 * * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -12,7 +12,7 @@ * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.6.30, June 28, 2017: + * libpng versions 0.97, January 1998, through 1.6.31rc01, July 19, 2017: * Glenn Randers-Pehrson. * See also "Contributing Authors", below. */ @@ -25,7 +25,7 @@ * * This code is released under the libpng license. * - * libpng versions 1.0.7, July 1, 2000 through 1.6.30, June 28, 2017 are + * libpng versions 1.0.7, July 1, 2000 through 1.6.31rc01, July 19, 2017 are * Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are * derived from libpng-1.0.6, and are distributed according to the same * disclaimer and license as libpng-1.0.6 with the following individuals @@ -213,7 +213,7 @@ * ... * 1.5.28 15 10527 15.so.15.28[.0] * ... - * 1.6.30 16 10630 16.so.16.30[.0] + * 1.6.31 16 10631 16.so.16.31[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -241,13 +241,13 @@ * Y2K compliance in libpng: * ========================= * - * June 28, 2017 + * July 19, 2017 * * Since the PNG Development group is an ad-hoc body, we can't make * an official declaration. * * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.6.30 are Y2K compliant. It is my belief that + * upward through 1.6.31rc01 are Y2K compliant. It is my belief that * earlier versions were also Y2K compliant. * * Libpng only has two year fields. One is a 2-byte unsigned integer @@ -309,8 +309,8 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.6.30" -#define PNG_HEADER_VERSION_STRING " libpng version 1.6.30 - June 28, 2017\n" +#define PNG_LIBPNG_VER_STRING "1.6.31rc01" +#define PNG_HEADER_VERSION_STRING " libpng version 1.6.31rc01 - July 19, 2017\n" #define PNG_LIBPNG_VER_SONUM 16 #define PNG_LIBPNG_VER_DLLNUM 16 @@ -318,13 +318,13 @@ /* 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 30 +#define PNG_LIBPNG_VER_RELEASE 31 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ -#define PNG_LIBPNG_VER_BUILD 0 +#define PNG_LIBPNG_VER_BUILD 01 /* Release Status */ #define PNG_LIBPNG_BUILD_ALPHA 1 @@ -341,7 +341,7 @@ #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with PNG_LIBPNG_BUILD_PRIVATE */ -#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE +#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_RC /* Careful here. At one time, Guy wanted to use 082, but that would be octal. * We must not include leading zeros. @@ -349,7 +349,7 @@ * version 1.0.0 was mis-numbered 100 instead of 10000). From * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10630 /* 1.6.30 */ +#define PNG_LIBPNG_VER 10631 /* 1.6.31 */ /* Library configuration: these options cannot be changed after * the library has been built. @@ -459,7 +459,7 @@ 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_30; +typedef char* png_libpng_version_1_6_31rc01; /* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. * @@ -776,6 +776,7 @@ typedef png_unknown_chunk * * png_unknown_chunkpp; #define PNG_INFO_sPLT 0x2000U /* ESR, 1.0.6 */ #define PNG_INFO_sCAL 0x4000U /* ESR, 1.0.6 */ #define PNG_INFO_IDAT 0x8000U /* ESR, 1.0.6 */ +#define PNG_INFO_eXIf 0x10000U /* GR-P, 1.6.31 */ /* This is used for the transformation routines, as some of them * change these values for the row. It also should enable using @@ -1788,7 +1789,8 @@ PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr, #define PNG_FREE_PLTE 0x1000U #define PNG_FREE_TRNS 0x2000U #define PNG_FREE_TEXT 0x4000U -#define PNG_FREE_ALL 0x7fffU +#define PNG_FREE_EXIF 0x8000U /* Added at libpng-1.6.31 */ +#define PNG_FREE_ALL 0xffffU #define PNG_FREE_MUL 0x4220U /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ #ifdef PNG_USER_MEM_SUPPORTED @@ -2007,6 +2009,13 @@ PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_const_structrp png_ptr, png_fixed_point int_blue_Z)) #endif +#ifdef PNG_eXIf_SUPPORTED +PNG_EXPORT(246, png_uint_32, png_get_eXIf, (png_const_structrp png_ptr, + png_inforp info_ptr, png_bytep *exif)); +PNG_EXPORT(247, void, png_set_eXIf, (png_const_structrp png_ptr, + png_inforp info_ptr, const png_bytep exif)); +#endif + #ifdef PNG_gAMA_SUPPORTED PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA, (png_const_structrp png_ptr, png_const_inforp info_ptr, double *file_gamma)) @@ -2025,9 +2034,6 @@ PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_const_structrp png_ptr, #ifdef PNG_hIST_SUPPORTED PNG_EXPORT(141, png_uint_32, png_get_hIST, (png_const_structrp png_ptr, png_inforp info_ptr, png_uint_16p *hist)); -#endif - -#ifdef PNG_hIST_SUPPORTED PNG_EXPORT(142, void, png_set_hIST, (png_const_structrp png_ptr, png_inforp info_ptr, png_const_uint_16p hist)); #endif @@ -3253,7 +3259,7 @@ PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option, * one to use is one more than this.) */ #ifdef PNG_EXPORT_LAST_ORDINAL - PNG_EXPORT_LAST_ORDINAL(245); + PNG_EXPORT_LAST_ORDINAL(247); #endif #ifdef __cplusplus diff --git a/thirdparty/libpng/pngconf.h b/thirdparty/libpng/pngconf.h index f64592acd7..9308d6a60a 100644 --- a/thirdparty/libpng/pngconf.h +++ b/thirdparty/libpng/pngconf.h @@ -1,7 +1,7 @@ /* pngconf.h - machine configurable file for libpng * - * libpng version 1.6.30, June 28, 2017 + * libpng version 1.6.31rc01, July 19, 2017 * * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) diff --git a/thirdparty/libpng/pngerror.c b/thirdparty/libpng/pngerror.c index 00d76f7c05..37f26c6558 100644 --- a/thirdparty/libpng/pngerror.c +++ b/thirdparty/libpng/pngerror.c @@ -1,8 +1,8 @@ /* pngerror.c - stub functions for i/o and memory allocation * - * Last changed in libpng 1.6.26 [October 20, 2016] - * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] + * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -163,7 +163,7 @@ png_format_number(png_const_charp start, png_charp end, int format, case PNG_NUMBER_FORMAT_02u: /* Expects at least 2 digits. */ mincount = 2; - /* FALL THROUGH */ + /* FALLTHROUGH */ case PNG_NUMBER_FORMAT_u: *--end = digits[number % 10]; @@ -173,7 +173,7 @@ png_format_number(png_const_charp start, png_charp end, int format, case PNG_NUMBER_FORMAT_02x: /* This format expects at least two digits */ mincount = 2; - /* FALL THROUGH */ + /* FALLTHROUGH */ case PNG_NUMBER_FORMAT_x: *--end = digits[number & 0xf]; diff --git a/thirdparty/libpng/pngget.c b/thirdparty/libpng/pngget.c index 141c393330..ace9e6351f 100644 --- a/thirdparty/libpng/pngget.c +++ b/thirdparty/libpng/pngget.c @@ -773,6 +773,24 @@ png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr, } #endif +#ifdef PNG_eXIf_SUPPORTED +png_uint_32 PNGAPI +png_get_eXIf(png_const_structrp png_ptr, png_inforp info_ptr, + png_bytep *exif) +{ + png_debug1(1, "in %s retrieval function", "eXIf"); + + if (png_ptr != NULL && info_ptr != NULL && + (info_ptr->valid & PNG_INFO_eXIf) != 0 && exif != NULL) + { + *exif = info_ptr->exif; + return (PNG_INFO_eXIf); + } + + return (0); +} +#endif + #ifdef PNG_hIST_SUPPORTED png_uint_32 PNGAPI png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr, diff --git a/thirdparty/libpng/pnginfo.h b/thirdparty/libpng/pnginfo.h index 361ed8be70..6e6d46a62b 100644 --- a/thirdparty/libpng/pnginfo.h +++ b/thirdparty/libpng/pnginfo.h @@ -185,6 +185,11 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */ #endif +#ifdef PNG_eXIf_SUPPORTED + int num_exif; + png_bytep exif; +#endif + #ifdef PNG_hIST_SUPPORTED /* The hIST chunk contains the relative frequency or importance of the * various palette entries, so that a viewer can intelligently select a diff --git a/thirdparty/libpng/pnglibconf.h b/thirdparty/libpng/pnglibconf.h index da3d8359f4..8738ebdfc2 100644 --- a/thirdparty/libpng/pnglibconf.h +++ b/thirdparty/libpng/pnglibconf.h @@ -1,8 +1,8 @@ -/* libpng 1.6.30 STANDARD API DEFINITION */ +/* libpng 1.6.31rc01 STANDARD API DEFINITION */ /* pnglibconf.h - library build configuration */ -/* Libpng version 1.6.30 - June 28, 2017 */ +/* Libpng version 1.6.31rc01 - July 19, 2017 */ /* Copyright (c) 1998-2017 Glenn Randers-Pehrson */ @@ -84,6 +84,7 @@ #define PNG_READ_USER_TRANSFORM_SUPPORTED #define PNG_READ_bKGD_SUPPORTED #define PNG_READ_cHRM_SUPPORTED +#define PNG_READ_eXIf_SUPPORTED #define PNG_READ_gAMA_SUPPORTED #define PNG_READ_hIST_SUPPORTED #define PNG_READ_iCCP_SUPPORTED @@ -153,6 +154,7 @@ #define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED #define PNG_WRITE_bKGD_SUPPORTED #define PNG_WRITE_cHRM_SUPPORTED +#define PNG_WRITE_eXIf_SUPPORTED #define PNG_WRITE_gAMA_SUPPORTED #define PNG_WRITE_hIST_SUPPORTED #define PNG_WRITE_iCCP_SUPPORTED @@ -170,6 +172,7 @@ #define PNG_WRITE_zTXt_SUPPORTED #define PNG_bKGD_SUPPORTED #define PNG_cHRM_SUPPORTED +#define PNG_eXIf_SUPPORTED #define PNG_gAMA_SUPPORTED #define PNG_hIST_SUPPORTED #define PNG_iCCP_SUPPORTED diff --git a/thirdparty/libpng/pngpriv.h b/thirdparty/libpng/pngpriv.h index 77d30420a5..7c273bd5e3 100644 --- a/thirdparty/libpng/pngpriv.h +++ b/thirdparty/libpng/pngpriv.h @@ -1,7 +1,7 @@ /* pngpriv.h - private declarations for use inside libpng * - * Last changed in libpng 1.6.30 [(PENDING RELEASE)] + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -35,7 +35,9 @@ * Windows/Visual Studio) there is no effect; the OS specific tests below are * still required (as of 2011-05-02.) */ -#define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */ +#ifndef _POSIX_SOURCE +# define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */ +#endif #ifndef PNG_VERSION_INFO_ONLY /* Standard library headers not required by png.h: */ @@ -452,6 +454,21 @@ # define png_fixed_error(s1,s2) png_err(s1) #endif +/* Some fixed point APIs are still required even if not exported because + * they get used by the corresponding floating point APIs. This magic + * deals with this: + */ +#ifdef PNG_FIXED_POINT_SUPPORTED +# define PNGFAPI PNGAPI +#else +# define PNGFAPI /* PRIVATE */ +#endif + +#ifndef PNG_VERSION_INFO_ONLY +/* Other defines specific to compilers can go here. Try to keep + * them inside an appropriate ifdef/endif pair for portability. + */ + /* C allows up-casts from (void*) to any pointer and (const void*) to any * pointer to a const object. C++ regards this as a type error and requires an * explicit, static, cast and provides the static_cast<> rune to ensure that @@ -464,7 +481,7 @@ static_cast<type>(static_cast<void*>(value)) # define png_aligncastconst(type, value) \ static_cast<type>(static_cast<const void*>(value)) -#elif !defined(__ASSEMBLER__) +#else # define png_voidcast(type, value) (value) # ifdef _WIN64 # ifdef __GNUC__ @@ -480,20 +497,6 @@ # define png_aligncastconst(type, value) ((const void*)(value)) #endif /* __cplusplus */ -/* Some fixed point APIs are still required even if not exported because - * they get used by the corresponding floating point APIs. This magic - * deals with this: - */ -#ifdef PNG_FIXED_POINT_SUPPORTED -# define PNGFAPI PNGAPI -#else -# define PNGFAPI /* PRIVATE */ -#endif - -#ifndef PNG_VERSION_INFO_ONLY -/* Other defines specific to compilers can go here. Try to keep - * them inside an appropriate ifdef/endif pair for portability. - */ #if defined(PNG_FLOATING_POINT_SUPPORTED) ||\ defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) /* png.c requires the following ANSI-C constants if the conversion of @@ -839,6 +842,7 @@ #define png_PLTE PNG_U32( 80, 76, 84, 69) #define png_bKGD PNG_U32( 98, 75, 71, 68) #define png_cHRM PNG_U32( 99, 72, 82, 77) +#define png_eXIf PNG_U32(101, 88, 73, 102) /* registered July 2017 */ #define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */ #define png_gAMA PNG_U32(103, 65, 77, 65) #define png_gIFg PNG_U32(103, 73, 70, 103) @@ -1438,6 +1442,11 @@ PNG_INTERNAL_FUNCTION(void,png_handle_cHRM,(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); #endif +#ifdef PNG_READ_eXIf_SUPPORTED +PNG_INTERNAL_FUNCTION(void,png_handle_eXIf,(png_structrp png_ptr, + png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); +#endif + #ifdef PNG_READ_gAMA_SUPPORTED PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); diff --git a/thirdparty/libpng/pngread.c b/thirdparty/libpng/pngread.c index 106a80588c..b44d4dfbb5 100644 --- a/thirdparty/libpng/pngread.c +++ b/thirdparty/libpng/pngread.c @@ -1,8 +1,8 @@ /* pngread.c - read a PNG file * - * Last changed in libpng 1.6.26 [October 20, 2016] - * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] + * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -1883,7 +1883,7 @@ png_create_colormap_entry(png_image_read_control *display, { case 4: entry[afirst ? 0 : 3] = (png_uint_16)alpha; - /* FALL THROUGH */ + /* FALLTHROUGH */ case 3: if (alpha < 65535) @@ -1905,7 +1905,7 @@ png_create_colormap_entry(png_image_read_control *display, case 2: entry[1 ^ afirst] = (png_uint_16)alpha; - /* FALL THROUGH */ + /* FALLTHROUGH */ case 1: if (alpha < 65535) @@ -1934,6 +1934,7 @@ png_create_colormap_entry(png_image_read_control *display, { case 4: entry[afirst ? 0 : 3] = (png_byte)alpha; + /* FALLTHROUGH */ case 3: entry[afirst + (2 ^ bgr)] = (png_byte)blue; entry[afirst + 1] = (png_byte)green; @@ -1942,6 +1943,7 @@ png_create_colormap_entry(png_image_read_control *display, case 2: entry[1 ^ afirst] = (png_byte)alpha; + /* FALLTHROUGH */ case 1: entry[afirst] = (png_byte)green; break; @@ -2861,7 +2863,7 @@ png_image_read_colormap(png_voidp argument) case P_sRGB: /* Change to 8-bit sRGB */ png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB); - /* FALL THROUGH */ + /* FALLTHROUGH */ case P_FILE: if (png_ptr->bit_depth > 8) @@ -3179,8 +3181,7 @@ png_image_read_colormapped(png_voidp argument) image->colormap_entries == 244 /* 216 + 1 + 27 */) break; - /* goto bad_output; */ - /* FALL THROUGH */ + goto bad_output; default: bad_output: diff --git a/thirdparty/libpng/pngrtran.c b/thirdparty/libpng/pngrtran.c index 3886833af0..9285983848 100644 --- a/thirdparty/libpng/pngrtran.c +++ b/thirdparty/libpng/pngrtran.c @@ -1,7 +1,7 @@ /* pngrtran.c - transforms the data in a row for PNG readers * - * Last changed in libpng 1.6.30 [(PENDING RELEASE)] + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -49,6 +49,7 @@ png_set_crc_action(png_structrp png_ptr, int crit_action, int ancil_action) case PNG_CRC_WARN_DISCARD: /* Not a valid action for critical data */ png_warning(png_ptr, "Can't discard critical data on CRC error"); + /* FALLTHROUGH */ case PNG_CRC_ERROR_QUIT: /* Error/quit */ case PNG_CRC_DEFAULT: @@ -1253,7 +1254,7 @@ png_init_rgb_transformations(png_structrp png_ptr) default: case 8: - /* FALL THROUGH (Already 8 bits) */ + /* FALLTHROUGH */ /* (Already 8 bits) */ case 16: /* Already a full 16 bits */ diff --git a/thirdparty/libpng/pngrutil.c b/thirdparty/libpng/pngrutil.c index f60545bf90..9cde64845c 100644 --- a/thirdparty/libpng/pngrutil.c +++ b/thirdparty/libpng/pngrutil.c @@ -1,7 +1,7 @@ /* pngrutil.c - utilities to read a PNG file * - * Last changed in libpng 1.6.30 [(PENDING RELEASE)] + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -2009,6 +2009,44 @@ png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) } #endif +#ifdef PNG_READ_eXIf_SUPPORTED +void /* PRIVATE */ +png_handle_eXIf(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) +{ + unsigned int i; + png_bytep eXIf_buf; + + png_debug(1, "in png_handle_eXIf"); + + if ((png_ptr->mode & PNG_HAVE_IHDR) == 0) + png_chunk_error(png_ptr, "missing IHDR"); + + else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_eXIf) != 0) + { + png_crc_finish(png_ptr, length); + png_chunk_benign_error(png_ptr, "duplicate"); + return; + } + + eXIf_buf = png_voidcast(png_bytep, + png_malloc_warn(png_ptr, length)); + + for (i = 0; i < length; i++) + { + png_byte buf[1]; + png_crc_read(png_ptr, buf, 1); + eXIf_buf[i] = buf[0]; + } + + if (png_crc_finish(png_ptr, 0) != 0) + return; + + info_ptr->num_exif = length; + + png_set_eXIf(png_ptr, info_ptr, eXIf_buf); +} +#endif + #ifdef PNG_READ_hIST_SUPPORTED void /* PRIVATE */ png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) @@ -2978,7 +3016,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr, case 2: png_ptr->user_chunk_cache_max = 1; png_chunk_benign_error(png_ptr, "no space in chunk cache"); - /* FALL THROUGH */ + /* FALLTHROUGH */ case 1: /* NOTE: prior to 1.6.0 this case resulted in an unknown critical * chunk being skipped, now there will be a hard error below. @@ -2987,7 +3025,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr, default: /* not at limit */ --(png_ptr->user_chunk_cache_max); - /* FALL THROUGH */ + /* FALLTHROUGH */ case 0: /* no limit */ # endif /* USER_LIMITS */ /* Here when the limit isn't reached or when limits are compiled diff --git a/thirdparty/libpng/pngset.c b/thirdparty/libpng/pngset.c index fb495ac3fb..998473557f 100644 --- a/thirdparty/libpng/pngset.c +++ b/thirdparty/libpng/pngset.c @@ -1,7 +1,7 @@ /* pngset.c - storage of image information into info struct * - * Last changed in libpng 1.6.30 [(PENDING RELEASE)] + * Last changed in libpng 1.6.30 [June 28, 2017] * Copyright (c) 1998-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -134,6 +134,39 @@ png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X, #endif /* cHRM */ +#ifdef PNG_eXIf_SUPPORTED +void PNGAPI +png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr, + const png_bytep eXIf_buf) +{ + int i; + + png_debug1(1, "in %s storage function", "eXIf"); + + if (png_ptr == NULL || info_ptr == NULL) + return; + + png_free_data(png_ptr, info_ptr, PNG_FREE_EXIF, 0); + + 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"); + + return; + } + + info_ptr->free_me |= PNG_FREE_EXIF; + + for (i = 0; i < info_ptr->num_exif; i++) + info_ptr->exif[i] = eXIf_buf[i]; + + info_ptr->valid |= PNG_INFO_eXIf; +} +#endif /* eXIf */ + #ifdef PNG_gAMA_SUPPORTED void PNGFAPI png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr, diff --git a/thirdparty/libpng/pngstruct.h b/thirdparty/libpng/pngstruct.h index 749d7e35b1..44b79dea74 100644 --- a/thirdparty/libpng/pngstruct.h +++ b/thirdparty/libpng/pngstruct.h @@ -479,5 +479,8 @@ struct png_struct_def png_colorspace colorspace; #endif #endif + +/* New member added in libpng-1.6.31 */ + int num_exif; }; #endif /* PNGSTRUCT_H */ diff --git a/thirdparty/libpng/pngtrans.c b/thirdparty/libpng/pngtrans.c index 6c8c646239..326ac33f0e 100644 --- a/thirdparty/libpng/pngtrans.c +++ b/thirdparty/libpng/pngtrans.c @@ -1,7 +1,7 @@ /* pngtrans.c - transforms the data in a row (used by both readers and writers) * - * Last changed in libpng 1.6.30 [(PENDING RELEASE)] + * Last changed in libpng 1.6.30 [June 28, 2017] * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) diff --git a/thirdparty/libpng/pngwrite.c b/thirdparty/libpng/pngwrite.c index 07088ee75e..8c2952e794 100644 --- a/thirdparty/libpng/pngwrite.c +++ b/thirdparty/libpng/pngwrite.c @@ -1,8 +1,8 @@ /* pngwrite.c - general routines to write a PNG file * - * Last changed in libpng 1.6.26 [October 20, 2016] - * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson + * Last changed in libpng 1.6.31 [(PENDING RELEASE)] + * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * @@ -1007,8 +1007,8 @@ png_set_filter(png_structrp png_ptr, int method, int filters) case 5: case 6: case 7: png_app_error(png_ptr, "Unknown row filter for method 0"); - /* FALL THROUGH */ #endif /* WRITE_FILTER */ + /* FALLTHROUGH */ case PNG_FILTER_VALUE_NONE: png_ptr->do_filter = PNG_FILTER_NONE; break; @@ -1875,7 +1875,7 @@ png_image_set_PLTE(png_image_write_control *display) tRNS[i] = entry[afirst ? 0 : 3]; if (tRNS[i] < 255) num_trans = i+1; - /* FALL THROUGH */ + /* FALLTHROUGH */ case 3: palette[i].blue = entry[afirst + (2 ^ bgr)]; palette[i].green = entry[afirst + 1]; @@ -1886,7 +1886,7 @@ png_image_set_PLTE(png_image_write_control *display) tRNS[i] = entry[1 ^ afirst]; if (tRNS[i] < 255) num_trans = i+1; - /* FALL THROUGH */ + /* FALLTHROUGH */ case 1: palette[i].blue = palette[i].red = palette[i].green = entry[afirst]; diff --git a/thirdparty/libpng/pngwutil.c b/thirdparty/libpng/pngwutil.c index dd800586be..348bb524dd 100644 --- a/thirdparty/libpng/pngwutil.c +++ b/thirdparty/libpng/pngwutil.c @@ -1473,6 +1473,37 @@ png_write_bKGD(png_structrp png_ptr, png_const_color_16p back, int color_type) } #endif +#ifdef PNG_WRITE_eXIf_SUPPORTED +/* Write the Exif data */ +void /* PRIVATE */ +png_write_eXIf(png_structrp png_ptr, png_bytep exif, int num_exif) +{ + int i; + png_byte buf[3]; + + png_debug(1, "in png_write_eXIf"); + + if (num_exif > (int)png_ptr->num_exif) + { + png_debug2(3, "num_exif = %d, png_ptr->num_exif = %d", num_exif, + png_ptr->num_exif); + + png_warning(png_ptr, "Invalid number of exif bytes specified"); + return; + } + + png_write_chunk_header(png_ptr, png_eXIf, (png_uint_32)(num_exif)); + + for (i = 0; i < num_exif; i++) + { + buf[i] = exif[i]; + png_write_chunk_data(png_ptr, buf, (png_size_t)1); + } + + png_write_chunk_end(png_ptr); +} +#endif + #ifdef PNG_WRITE_hIST_SUPPORTED /* Write the histogram */ void /* PRIVATE */ |