libpng: Update to upstream version 1.6.35
This commit is contained in:
Rémi Verschelde
44
thirdparty/libpng/pngpriv.h
vendored
44
thirdparty/libpng/pngpriv.h
vendored
@ -1,8 +1,8 @@
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/* pngpriv.h - private declarations for use inside libpng
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*
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* Last changed in libpng 1.6.32 [August 24, 2017]
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* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
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* Last changed in libpng 1.6.35 [July 15, 2018]
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* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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*
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@ -210,7 +210,11 @@
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defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
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(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
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# define PNG_INTEL_SSE_OPT 1
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# else
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# define PNG_INTEL_SSE_OPT 0
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# endif
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# else
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# define PNG_INTEL_SSE_OPT 0
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# endif
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#endif
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@ -234,6 +238,8 @@
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# if PNG_INTEL_SSE_IMPLEMENTATION > 0
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# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_sse2
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# endif
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#else
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# define PNG_INTEL_SSE_IMPLEMENTATION 0
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#endif
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#if PNG_MIPS_MSA_OPT > 0
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@ -728,8 +734,8 @@
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/* Added to libpng-1.2.6 JB */
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#define PNG_ROWBYTES(pixel_bits, width) \
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((pixel_bits) >= 8 ? \
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((png_size_t)(width) * (((png_size_t)(pixel_bits)) >> 3)) : \
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(( ((png_size_t)(width) * ((png_size_t)(pixel_bits))) + 7) >> 3) )
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((size_t)(width) * (((size_t)(pixel_bits)) >> 3)) : \
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(( ((size_t)(width) * ((size_t)(pixel_bits))) + 7) >> 3) )
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/* This returns the number of trailing bits in the last byte of a row, 0 if the
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* last byte is completely full of pixels. It is, in principle, (pixel_bits x
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@ -917,7 +923,7 @@
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* PNG files the -I directives must match.
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*
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* The most likely explanation is that you passed a -I in CFLAGS. This will
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* not work; all the preprocessor directories and in particular all the -I
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* not work; all the preprocessor directives and in particular all the -I
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* directives must be in CPPFLAGS.
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*/
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#endif
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@ -1046,15 +1052,15 @@ PNG_INTERNAL_FUNCTION(void,png_zfree,(voidpf png_ptr, voidpf ptr),PNG_EMPTY);
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*/
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PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr,
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png_bytep data, png_size_t length),PNG_EMPTY);
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png_bytep data, size_t length),PNG_EMPTY);
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#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
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PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr,
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png_bytep buffer, png_size_t length),PNG_EMPTY);
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png_bytep buffer, size_t length),PNG_EMPTY);
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#endif
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PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr,
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png_bytep data, png_size_t length),PNG_EMPTY);
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png_bytep data, size_t length),PNG_EMPTY);
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#ifdef PNG_WRITE_FLUSH_SUPPORTED
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# ifdef PNG_STDIO_SUPPORTED
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@ -1068,7 +1074,7 @@ PNG_INTERNAL_FUNCTION(void,png_reset_crc,(png_structrp png_ptr),PNG_EMPTY);
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/* Write the "data" buffer to whatever output you are using */
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PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr,
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png_const_bytep data, png_size_t length),PNG_EMPTY);
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png_const_bytep data, size_t length),PNG_EMPTY);
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/* Read and check the PNG file signature */
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PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr,
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@ -1080,7 +1086,7 @@ PNG_INTERNAL_FUNCTION(png_uint_32,png_read_chunk_header,(png_structrp png_ptr),
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/* Read data from whatever input you are using into the "data" buffer */
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PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data,
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png_size_t length),PNG_EMPTY);
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size_t length),PNG_EMPTY);
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/* Read bytes into buf, and update png_ptr->crc */
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PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf,
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@ -1098,7 +1104,7 @@ PNG_INTERNAL_FUNCTION(int,png_crc_error,(png_structrp png_ptr),PNG_EMPTY);
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* since this is the maximum buffer size we can specify.
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*/
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PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr,
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png_const_bytep ptr, png_size_t length),PNG_EMPTY);
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png_const_bytep ptr, size_t length),PNG_EMPTY);
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#ifdef PNG_WRITE_FLUSH_SUPPORTED
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PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY);
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@ -1181,7 +1187,7 @@ PNG_INTERNAL_FUNCTION(void,png_write_hIST,(png_structrp png_ptr,
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/* Chunks that have keywords */
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#ifdef PNG_WRITE_tEXt_SUPPORTED
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PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr,
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png_const_charp key, png_const_charp text, png_size_t text_len),PNG_EMPTY);
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png_const_charp key, png_const_charp text, size_t text_len),PNG_EMPTY);
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#endif
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#ifdef PNG_WRITE_zTXt_SUPPORTED
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@ -1574,10 +1580,10 @@ PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr),
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PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr,
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png_bytep buffer, png_size_t buffer_length),PNG_EMPTY);
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png_bytep buffer, size_t buffer_length),PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr,
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png_bytep buffer, png_size_t buffer_length),PNG_EMPTY);
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png_bytep buffer, size_t buffer_length),PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr),
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PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr,
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@ -1847,13 +1853,13 @@ PNG_INTERNAL_FUNCTION(void,png_chunk_report,(png_const_structrp png_ptr,
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#ifdef PNG_FLOATING_POINT_SUPPORTED
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PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr,
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png_charp ascii, png_size_t size, double fp, unsigned int precision),
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png_charp ascii, size_t size, double fp, unsigned int precision),
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PNG_EMPTY);
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#endif /* FLOATING_POINT */
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#ifdef PNG_FIXED_POINT_SUPPORTED
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PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
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png_charp ascii, png_size_t size, png_fixed_point fp),PNG_EMPTY);
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png_charp ascii, size_t size, png_fixed_point fp),PNG_EMPTY);
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#endif /* FIXED_POINT */
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#endif /* sCAL */
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@ -1946,7 +1952,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
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* the problem character.) This has not been tested within libpng.
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*/
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PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
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png_size_t size, int *statep, png_size_tp whereami),PNG_EMPTY);
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size_t size, int *statep, png_size_tp whereami),PNG_EMPTY);
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/* This is the same but it checks a complete string and returns true
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* only if it just contains a floating point number. As of 1.5.4 this
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@ -1955,7 +1961,7 @@ PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
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* for negative or zero values using the sticky flag.
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*/
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PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string,
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png_size_t size),PNG_EMPTY);
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size_t size),PNG_EMPTY);
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#endif /* pCAL || sCAL */
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#if defined(PNG_GAMMA_SUPPORTED) ||\
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@ -2030,7 +2036,7 @@ typedef struct png_control
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png_voidp error_buf; /* Always a jmp_buf at present. */
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png_const_bytep memory; /* Memory buffer. */
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png_size_t size; /* Size of the memory buffer. */
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size_t size; /* Size of the memory buffer. */
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unsigned int for_write :1; /* Otherwise it is a read structure */
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unsigned int owned_file :1; /* We own the file in io_ptr */
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