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[libpng15] Bump version to libpng-1.5.6beta02

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Glenn Randers-Pehrson
2011-09-22 12:41:58 -05:00
parent 115020d985
commit bb5cb1476b
36 changed files with 855 additions and 879 deletions
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54
png.c
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@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.5.5 [(PENDING RELEASE)]
* Last changed in libpng 1.5.6 [(PENDING RELEASE)]
* Copyright (c) 1998-2011 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 +14,7 @@
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef png_libpng_version_1_5_6beta01 Your_png_h_is_not_version_1_5_6beta01;
typedef png_libpng_version_1_5_6beta02 Your_png_h_is_not_version_1_5_6beta02;
/* 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
@@ -121,14 +121,14 @@ png_calculate_crc(png_structp png_ptr, png_const_bytep ptr, png_size_t length)
{
int need_crc = 1;
if (png_ptr->chunk_name[0] & 0x20) /* ancillary */
if (PNG_CHUNK_ANCILLIARY(png_ptr->chunk_name))
{
if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
(PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
need_crc = 0;
}
else /* critical */
else /* critical */
{
if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE)
need_crc = 0;
@@ -645,13 +645,13 @@ png_get_copyright(png_const_structp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.5.6beta01 - September 22, 2011" PNG_STRING_NEWLINE \
"libpng version 1.5.6beta02 - September 22, 2011" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2011 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 1.5.6beta01 - September 22, 2011\
return "libpng version 1.5.6beta02 - September 22, 2011\
Copyright (c) 1998-2011 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@@ -698,25 +698,43 @@ png_get_header_version(png_const_structp png_ptr)
#endif
}
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
# ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
int PNGAPI
png_handle_as_unknown(png_structp png_ptr, png_const_bytep chunk_name)
{
/* Check chunk_name and return "keep" value if it's on the list, else 0 */
int i;
png_bytep p;
if (png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list<=0)
return 0;
png_const_bytep p, p_end;
p = png_ptr->chunk_list + png_ptr->num_chunk_list*5 - 5;
for (i = png_ptr->num_chunk_list; i; i--, p -= 5)
if (png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list <= 0)
return PNG_HANDLE_CHUNK_AS_DEFAULT;
p_end = png_ptr->chunk_list;
p = p_end + png_ptr->num_chunk_list*5; /* beyond end */
/* The code is the fifth byte after each four byte string. Historically this
* code was always searched from the end of the list, so it should continue
* to do so in case there are duplicated entries.
*/
do /* num_chunk_list > 0, so at least one */
{
p -= 5;
if (!png_memcmp(chunk_name, p, 4))
return ((int)*(p + 4));
return 0;
return p[4];
}
while (p > p_end);
return PNG_HANDLE_CHUNK_AS_DEFAULT;
}
# endif
#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
int /* PRIVATE */
png_chunk_unknown_handling(png_structp png_ptr, png_uint_32 chunk_name)
{
png_byte chunk_string[5];
PNG_CSTRING_FROM_CHUNK(chunk_string, chunk_name);
return png_handle_as_unknown(png_ptr, chunk_string);
}
#endif
#ifdef PNG_READ_SUPPORTED
/* This function, added to libpng-1.0.6g, is untested. */