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[master] Imported from libpng-1.6.29.tar

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Glenn Randers-Pehrson
2017-03-16 07:21:03 -05:00
parent 0a181e1665
commit b363e01e6b
46 changed files with 1487 additions and 477 deletions
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14
png.c
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@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.6.28 [January 5, 2017]
* Last changed in libpng 1.6.29 [March 16, 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.)
@@ -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_28 Your_png_h_is_not_version_1_6_28;
typedef png_libpng_version_1_6_29 Your_png_h_is_not_version_1_6_29;
/* 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
@@ -776,14 +776,14 @@ png_get_copyright(png_const_structrp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.6.28 - January 5, 2017" PNG_STRING_NEWLINE \
"libpng version 1.6.29 - March 16, 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 1.6.28 - January 5, 2017\
return "libpng version 1.6.29 - March 16, 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.";
@@ -4260,13 +4260,13 @@ png_set_option(png_structrp png_ptr, int option, int onoff)
if (png_ptr != NULL && option >= 0 && option < PNG_OPTION_NEXT &&
(option & 1) == 0)
{
png_uint_32 mask = 3 << option;
png_uint_32 setting = (2 + (onoff != 0)) << option;
png_uint_32 mask = 3U << option;
png_uint_32 setting = (2U + (onoff != 0)) << option;
png_uint_32 current = png_ptr->options;
png_ptr->options = (png_uint_32)(((current & ~mask) | setting) & 0xff);
return (current & mask) >> option;
return (int)(current & mask) >> option;
}
return PNG_OPTION_INVALID;