diff options
Diffstat (limited to 'thirdparty/libpng/pngpriv.h')
| -rw-r--r-- | thirdparty/libpng/pngpriv.h | 270 |
1 files changed, 173 insertions, 97 deletions
diff --git a/thirdparty/libpng/pngpriv.h b/thirdparty/libpng/pngpriv.h index 9338df3144..ed61165b2d 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 1.6.22 [May 26, 2016] + * Last changed in libpng 1.6.26 [October 20, 2016] * Copyright (c) 1998-2002,2004,2006-2016 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.) @@ -182,6 +182,35 @@ # endif #endif /* PNG_ARM_NEON_OPT > 0 */ +#ifndef PNG_MIPS_MSA_OPT +# if defined(__mips_msa) && (__mips_isa_rev >= 5) && defined(PNG_ALIGNED_MEMORY_SUPPORTED) +# define PNG_MIPS_MSA_OPT 2 +# else +# define PNG_MIPS_MSA_OPT 0 +# endif +#endif + +#if PNG_MIPS_MSA_OPT > 0 +# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa +# ifndef PNG_MIPS_MSA_IMPLEMENTATION +# if defined(__mips_msa) +# if defined(__clang__) +# elif defined(__GNUC__) +# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7) +# define PNG_MIPS_MSA_IMPLEMENTATION 2 +# endif /* no GNUC support */ +# endif /* __GNUC__ */ +# else /* !defined __mips_msa */ +# define PNG_MIPS_MSA_IMPLEMENTATION 2 +# endif /* __mips_msa */ +# endif /* !PNG_MIPS_MSA_IMPLEMENTATION */ + +# ifndef PNG_MIPS_MSA_IMPLEMENTATION +# define PNG_MIPS_MSA_IMPLEMENTATION 1 +# endif +#endif /* PNG_MIPS_MSA_OPT > 0 */ + + /* Is this a build of a DLL where compilation of the object modules requires * different preprocessor settings to those required for a simple library? If * so PNG_BUILD_DLL must be set. @@ -420,10 +449,10 @@ # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) - /* We need to check that <math.h> hasn't already been included earlier - * as it seems it doesn't agree with <fp.h>, yet we should really use - * <fp.h> if possible. - */ + /* We need to check that <math.h> hasn't already been included earlier + * as it seems it doesn't agree with <fp.h>, yet we should really use + * <fp.h> if possible. + */ # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) # include <fp.h> # endif @@ -431,9 +460,9 @@ # include <math.h> # endif # if defined(_AMIGA) && defined(__SASC) && defined(_M68881) - /* Amiga SAS/C: We must include builtin FPU functions when compiling using - * MATH=68881 - */ + /* Amiga SAS/C: We must include builtin FPU functions when compiling using + * MATH=68881 + */ # include <m68881.h> # endif #endif @@ -504,7 +533,8 @@ /* This implicitly assumes alignment is always to a power of 2. */ #ifdef png_alignof # define png_isaligned(ptr, type)\ - ((((const char*)ptr-(const char*)0) & (png_alignof(type)-1)) == 0) + (((type)((const char*)ptr-(const char*)0) & \ + (type)(png_alignof(type)-1)) == 0) #else # define png_isaligned(ptr, type) 0 #endif @@ -521,92 +551,92 @@ * are defined in png.h because they need to be visible to applications * that call png_set_unknown_chunk(). */ -/* #define PNG_HAVE_IHDR 0x01 (defined in png.h) */ -/* #define PNG_HAVE_PLTE 0x02 (defined in png.h) */ -#define PNG_HAVE_IDAT 0x04 -/* #define PNG_AFTER_IDAT 0x08 (defined in png.h) */ -#define PNG_HAVE_IEND 0x10 - /* 0x20 (unused) */ - /* 0x40 (unused) */ - /* 0x80 (unused) */ -#define PNG_HAVE_CHUNK_HEADER 0x100 -#define PNG_WROTE_tIME 0x200 -#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 -#define PNG_BACKGROUND_IS_GRAY 0x800 -#define PNG_HAVE_PNG_SIGNATURE 0x1000 -#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ - /* 0x4000 (unused) */ -#define PNG_IS_READ_STRUCT 0x8000 /* Else is a write struct */ +/* #define PNG_HAVE_IHDR 0x01U (defined in png.h) */ +/* #define PNG_HAVE_PLTE 0x02U (defined in png.h) */ +#define PNG_HAVE_IDAT 0x04U +/* #define PNG_AFTER_IDAT 0x08U (defined in png.h) */ +#define PNG_HAVE_IEND 0x10U + /* 0x20U (unused) */ + /* 0x40U (unused) */ + /* 0x80U (unused) */ +#define PNG_HAVE_CHUNK_HEADER 0x100U +#define PNG_WROTE_tIME 0x200U +#define PNG_WROTE_INFO_BEFORE_PLTE 0x400U +#define PNG_BACKGROUND_IS_GRAY 0x800U +#define PNG_HAVE_PNG_SIGNATURE 0x1000U +#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */ + /* 0x4000U (unused) */ +#define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */ /* Flags for the transformations the PNG library does on the image data */ -#define PNG_BGR 0x0001 -#define PNG_INTERLACE 0x0002 -#define PNG_PACK 0x0004 -#define PNG_SHIFT 0x0008 -#define PNG_SWAP_BYTES 0x0010 -#define PNG_INVERT_MONO 0x0020 -#define PNG_QUANTIZE 0x0040 -#define PNG_COMPOSE 0x0080 /* Was PNG_BACKGROUND */ -#define PNG_BACKGROUND_EXPAND 0x0100 -#define PNG_EXPAND_16 0x0200 /* Added to libpng 1.5.2 */ -#define PNG_16_TO_8 0x0400 /* Becomes 'chop' in 1.5.4 */ -#define PNG_RGBA 0x0800 -#define PNG_EXPAND 0x1000 -#define PNG_GAMMA 0x2000 -#define PNG_GRAY_TO_RGB 0x4000 -#define PNG_FILLER 0x8000 -#define PNG_PACKSWAP 0x10000 -#define PNG_SWAP_ALPHA 0x20000 -#define PNG_STRIP_ALPHA 0x40000 -#define PNG_INVERT_ALPHA 0x80000 -#define PNG_USER_TRANSFORM 0x100000 -#define PNG_RGB_TO_GRAY_ERR 0x200000 -#define PNG_RGB_TO_GRAY_WARN 0x400000 -#define PNG_RGB_TO_GRAY 0x600000 /* two bits, RGB_TO_GRAY_ERR|WARN */ -#define PNG_ENCODE_ALPHA 0x800000 /* Added to libpng-1.5.4 */ -#define PNG_ADD_ALPHA 0x1000000 /* Added to libpng-1.2.7 */ -#define PNG_EXPAND_tRNS 0x2000000 /* Added to libpng-1.2.9 */ -#define PNG_SCALE_16_TO_8 0x4000000 /* Added to libpng-1.5.4 */ - /* 0x8000000 unused */ - /* 0x10000000 unused */ - /* 0x20000000 unused */ - /* 0x40000000 unused */ +#define PNG_BGR 0x0001U +#define PNG_INTERLACE 0x0002U +#define PNG_PACK 0x0004U +#define PNG_SHIFT 0x0008U +#define PNG_SWAP_BYTES 0x0010U +#define PNG_INVERT_MONO 0x0020U +#define PNG_QUANTIZE 0x0040U +#define PNG_COMPOSE 0x0080U /* Was PNG_BACKGROUND */ +#define PNG_BACKGROUND_EXPAND 0x0100U +#define PNG_EXPAND_16 0x0200U /* Added to libpng 1.5.2 */ +#define PNG_16_TO_8 0x0400U /* Becomes 'chop' in 1.5.4 */ +#define PNG_RGBA 0x0800U +#define PNG_EXPAND 0x1000U +#define PNG_GAMMA 0x2000U +#define PNG_GRAY_TO_RGB 0x4000U +#define PNG_FILLER 0x8000U +#define PNG_PACKSWAP 0x10000U +#define PNG_SWAP_ALPHA 0x20000U +#define PNG_STRIP_ALPHA 0x40000U +#define PNG_INVERT_ALPHA 0x80000U +#define PNG_USER_TRANSFORM 0x100000U +#define PNG_RGB_TO_GRAY_ERR 0x200000U +#define PNG_RGB_TO_GRAY_WARN 0x400000U +#define PNG_RGB_TO_GRAY 0x600000U /* two bits, RGB_TO_GRAY_ERR|WARN */ +#define PNG_ENCODE_ALPHA 0x800000U /* Added to libpng-1.5.4 */ +#define PNG_ADD_ALPHA 0x1000000U /* Added to libpng-1.2.7 */ +#define PNG_EXPAND_tRNS 0x2000000U /* Added to libpng-1.2.9 */ +#define PNG_SCALE_16_TO_8 0x4000000U /* Added to libpng-1.5.4 */ + /* 0x8000000U unused */ + /* 0x10000000U unused */ + /* 0x20000000U unused */ + /* 0x40000000U unused */ /* Flags for png_create_struct */ -#define PNG_STRUCT_PNG 0x0001 -#define PNG_STRUCT_INFO 0x0002 +#define PNG_STRUCT_PNG 0x0001U +#define PNG_STRUCT_INFO 0x0002U /* Flags for the png_ptr->flags rather than declaring a byte for each one */ -#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 -#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002 /* Added to libpng-1.6.0 */ - /* 0x0004 unused */ -#define PNG_FLAG_ZSTREAM_ENDED 0x0008 /* Added to libpng-1.6.0 */ - /* 0x0010 unused */ - /* 0x0020 unused */ -#define PNG_FLAG_ROW_INIT 0x0040 -#define PNG_FLAG_FILLER_AFTER 0x0080 -#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 -#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 -#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 -#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 -#define PNG_FLAG_ASSUME_sRGB 0x1000 /* Added to libpng-1.5.4 */ -#define PNG_FLAG_OPTIMIZE_ALPHA 0x2000 /* Added to libpng-1.5.4 */ -#define PNG_FLAG_DETECT_UNINITIALIZED 0x4000 /* Added to libpng-1.5.4 */ -/* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000 */ -/* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000 */ -#define PNG_FLAG_LIBRARY_MISMATCH 0x20000 -#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000 -#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000 -#define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000 /* Added to libpng-1.4.0 */ -#define PNG_FLAG_APP_WARNINGS_WARN 0x200000 /* Added to libpng-1.6.0 */ -#define PNG_FLAG_APP_ERRORS_WARN 0x400000 /* Added to libpng-1.6.0 */ - /* 0x800000 unused */ - /* 0x1000000 unused */ - /* 0x2000000 unused */ - /* 0x4000000 unused */ - /* 0x8000000 unused */ - /* 0x10000000 unused */ - /* 0x20000000 unused */ - /* 0x40000000 unused */ +#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001U +#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002U /* Added to libpng-1.6.0 */ + /* 0x0004U unused */ +#define PNG_FLAG_ZSTREAM_ENDED 0x0008U /* Added to libpng-1.6.0 */ + /* 0x0010U unused */ + /* 0x0020U unused */ +#define PNG_FLAG_ROW_INIT 0x0040U +#define PNG_FLAG_FILLER_AFTER 0x0080U +#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100U +#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200U +#define PNG_FLAG_CRC_CRITICAL_USE 0x0400U +#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800U +#define PNG_FLAG_ASSUME_sRGB 0x1000U /* Added to libpng-1.5.4 */ +#define PNG_FLAG_OPTIMIZE_ALPHA 0x2000U /* Added to libpng-1.5.4 */ +#define PNG_FLAG_DETECT_UNINITIALIZED 0x4000U /* Added to libpng-1.5.4 */ +/* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000U */ +/* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000U */ +#define PNG_FLAG_LIBRARY_MISMATCH 0x20000U +#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000U +#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000U +#define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000U /* Added to libpng-1.4.0 */ +#define PNG_FLAG_APP_WARNINGS_WARN 0x200000U /* Added to libpng-1.6.0 */ +#define PNG_FLAG_APP_ERRORS_WARN 0x400000U /* Added to libpng-1.6.0 */ + /* 0x800000U unused */ + /* 0x1000000U unused */ + /* 0x2000000U unused */ + /* 0x4000000U unused */ + /* 0x8000000U unused */ + /* 0x10000000U unused */ + /* 0x20000000U unused */ + /* 0x40000000U unused */ #define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ PNG_FLAG_CRC_ANCILLARY_NOWARN) @@ -640,6 +670,24 @@ ((png_size_t)(width) * (((png_size_t)(pixel_bits)) >> 3)) : \ (( ((png_size_t)(width) * ((png_size_t)(pixel_bits))) + 7) >> 3) ) +/* This returns the number of trailing bits in the last byte of a row, 0 if the + * last byte is completely full of pixels. It is, in principle, (pixel_bits x + * width) % 8, but that would overflow for large 'width'. The second macro is + * the same except that it returns the number of unused bits in the last byte; + * (8-TRAILBITS), but 0 when TRAILBITS is 0. + * + * NOTE: these macros are intended to be self-evidently correct and never + * overflow on the assumption that pixel_bits is in the range 0..255. The + * arguments are evaluated only once and they can be signed (e.g. as a result of + * the integral promotions). The result of the expression always has type + * (png_uint_32), however the compiler always knows it is in the range 0..7. + */ +#define PNG_TRAILBITS(pixel_bits, width) \ + (((pixel_bits) * ((width) % (png_uint_32)8)) % 8) + +#define PNG_PADBITS(pixel_bits, width) \ + ((8 - PNG_TRAILBITS(pixel_bits, width)) % 8) + /* PNG_OUT_OF_RANGE returns true if value is outside the range * ideal-delta..ideal+delta. Each argument is evaluated twice. * "ideal" and "delta" should be constants, normally simple @@ -1025,7 +1073,7 @@ PNG_INTERNAL_FUNCTION(void,png_write_sBIT,(png_structrp png_ptr, #ifdef PNG_WRITE_cHRM_SUPPORTED PNG_INTERNAL_FUNCTION(void,png_write_cHRM_fixed,(png_structrp png_ptr, const png_xy *xy), PNG_EMPTY); - /* The xy value must have been previously validated */ + /* The xy value must have been previously validated */ #endif #ifdef PNG_WRITE_sRGB_SUPPORTED @@ -1174,6 +1222,7 @@ PNG_INTERNAL_FUNCTION(void,png_do_write_interlace,(png_row_infop row_info, PNG_INTERNAL_FUNCTION(void,png_read_filter_row,(png_structrp pp, png_row_infop row_info, png_bytep row, png_const_bytep prev_row, int filter),PNG_EMPTY); +#if PNG_ARM_NEON_OPT > 0 PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_neon,(png_row_infop row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_neon,(png_row_infop @@ -1188,6 +1237,24 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_neon,(png_row_infop row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +#endif + +#if PNG_MIPS_MSA_OPT > 0 +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_msa,(png_row_infop row_info, + png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_msa,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_msa,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_msa,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_msa,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_msa,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop + row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); +#endif /* Choose the best filter to use and filter the row data */ PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr, @@ -1215,7 +1282,7 @@ PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr), /* Initialize the row buffers, etc. */ PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY); -#if PNG_ZLIB_VERNUM >= 0x1240 +#if ZLIB_VERNUM >= 0x1240 PNG_INTERNAL_FUNCTION(int,png_zlib_inflate,(png_structrp png_ptr, int flush), PNG_EMPTY); # define PNG_INFLATE(pp, flush) png_zlib_inflate(pp, flush) @@ -1413,7 +1480,7 @@ PNG_INTERNAL_FUNCTION(void,png_push_have_info,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr, png_inforp info_ptr),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr, - png_bytep row),PNG_EMPTY); + png_bytep row),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr, png_inforp info_ptr),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr, @@ -1452,13 +1519,13 @@ PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr, png_inforp info_ptr), PNG_EMPTY); - /* Synchronize the info 'valid' flags with the colorspace */ + /* Synchronize the info 'valid' flags with the colorspace */ PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr, png_inforp info_ptr), PNG_EMPTY); - /* Copy the png_struct colorspace to the info_struct and call the above to - * synchronize the flags. Checks for NULL info_ptr and does nothing. - */ + /* Copy the png_struct colorspace to the info_struct and call the above to + * synchronize the flags. Checks for NULL info_ptr and does nothing. + */ #endif /* Added at libpng version 1.4.0 */ @@ -1492,9 +1559,11 @@ PNG_INTERNAL_FUNCTION(int,png_colorspace_set_ICC,(png_const_structrp png_ptr, /* The 'name' is used for information only */ /* Routines for checking parts of an ICC profile. */ +#ifdef PNG_READ_iCCP_SUPPORTED PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr, png_colorspacerp colorspace, png_const_charp name, png_uint_32 profile_length), PNG_EMPTY); +#endif /* READ_iCCP */ PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr, png_colorspacerp colorspace, png_const_charp name, png_uint_32 profile_length, @@ -1913,10 +1982,17 @@ PNG_INTERNAL_FUNCTION(void, PNG_FILTER_OPTIMIZATIONS, (png_structp png_ptr, * the builder of libpng passes the definition of PNG_FILTER_OPTIMIZATIONS in * CFLAGS in place of CPPFLAGS *and* uses symbol prefixing. */ +# if PNG_ARM_NEON_OPT > 0 PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon, (png_structp png_ptr, unsigned int bpp), PNG_EMPTY); #endif +#if PNG_MIPS_MSA_OPT > 0 +PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa, + (png_structp png_ptr, unsigned int bpp), PNG_EMPTY); +#endif +#endif + PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr, png_const_charp key, png_bytep new_key), PNG_EMPTY); |