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Imported from libpng-1.2.20rc4.tar

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This commit is contained in:
Glenn Randers-Pehrson
2007-09-01 15:12:50 -05:00
parent 9cc7b03503
commit d20666a228
60 changed files with 204 additions and 11915 deletions
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51
pngset.c
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@@ -1202,51 +1202,13 @@ png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask)
#ifndef PNG_1_0_X
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
/* this function was added to libpng 1.2.0 and should always exist by default */
/* function was added to libpng 1.2.0 and should always exist by default */
void PNGAPI
png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags)
{
#ifdef PNG_MMX_CODE_SUPPORTED
png_uint_32 settable_asm_flags;
png_uint_32 settable_mmx_flags;
#endif
if (png_ptr == NULL)
return;
#ifdef PNG_MMX_CODE_SUPPORTED
settable_mmx_flags =
#ifdef PNG_HAVE_MMX_COMBINE_ROW
PNG_ASM_FLAG_MMX_READ_COMBINE_ROW |
#endif
#ifdef PNG_HAVE_MMX_READ_INTERLACE
PNG_ASM_FLAG_MMX_READ_INTERLACE |
#endif
#ifdef PNG_HAVE_MMX_READ_FILTER_ROW
PNG_ASM_FLAG_MMX_READ_FILTER_SUB |
PNG_ASM_FLAG_MMX_READ_FILTER_UP |
PNG_ASM_FLAG_MMX_READ_FILTER_AVG |
PNG_ASM_FLAG_MMX_READ_FILTER_PAETH |
#endif
0;
/* could be some non-MMX ones in the future, but not currently: */
settable_asm_flags = settable_mmx_flags;
if (!(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_COMPILED) ||
!(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU))
{
/* clear all MMX flags if MMX isn't supported */
settable_asm_flags &= ~settable_mmx_flags;
png_ptr->asm_flags &= ~settable_mmx_flags;
}
/* we're replacing the settable bits with those passed in by the user,
* so first zero them out of the master copy, then bitwise-OR in the
* allowed subset that was requested */
png_ptr->asm_flags &= ~settable_asm_flags; /* zero them */
png_ptr->asm_flags |= (asm_flags & settable_asm_flags); /* set them */
#endif /* ?PNG_MMX_CODE_SUPPORTED */
/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */
if (png_ptr != NULL)
png_ptr->asm_flags = 0;
}
/* this function was added to libpng 1.2.0 */
@@ -1255,12 +1217,9 @@ png_set_mmx_thresholds (png_structp png_ptr,
png_byte mmx_bitdepth_threshold,
png_uint_32 mmx_rowbytes_threshold)
{
/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */
if (png_ptr == NULL)
return;
#ifdef PNG_MMX_CODE_SUPPORTED
png_ptr->mmx_bitdepth_threshold = mmx_bitdepth_threshold;
png_ptr->mmx_rowbytes_threshold = mmx_rowbytes_threshold;
#endif /* ?PNG_MMX_CODE_SUPPORTED */
}
#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */