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[libpng10] Imported from libpng-1.0.23rc1.tar

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This commit is contained in:
Glenn Randers-Pehrson
2006-12-18 14:02:59 -06:00
parent 1ff473f3fd
commit e696c7205a
57 changed files with 1871 additions and 1383 deletions
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78
pnggccrd.c
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@@ -245,7 +245,7 @@
#define PNG_INTERNAL
#include "png.h"
#if defined(PNG_USE_PNGGCCRD)
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_USE_PNGGCCRD)
int PNGAPI png_mmx_support(void);
@@ -255,7 +255,7 @@ static const int FARDATA png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
static const int FARDATA png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
#endif
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_MMX_CODE_SUPPORTED)
/* djgpp, Win32, Cygwin, and OS2 add their own underscores to global variables,
* so define them without: */
#if defined(__DJGPP__) || defined(WIN32) || defined(__CYGWIN__) || \
@@ -378,7 +378,7 @@ png_squelch_warnings(void)
_mask48_1 = _mask48_1;
_mask48_0 = _mask48_0;
}
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
static int _mmx_supported = 2;
@@ -389,7 +389,7 @@ static int _mmx_supported = 2;
/* */
/*===========================================================================*/
#if defined(PNG_HAVE_ASSEMBLER_COMBINE_ROW)
#if defined(PNG_HAVE_MMX_COMBINE_ROW)
#define BPP2 2
#define BPP3 3 /* bytes per pixel (a.k.a. pixel_bytes) */
@@ -416,7 +416,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
{
png_debug(1, "in png_combine_row (pnggccrd.c)\n");
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_MMX_CODE_SUPPORTED)
if (_mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
@@ -607,7 +607,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
png_bytep srcptr;
png_bytep dstptr;
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && _mmx_supported */ )
@@ -700,7 +700,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
);
}
else /* mmx _not supported - Use modified C routine */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
register png_uint_32 i;
png_uint_32 initial_val = png_pass_start[png_ptr->pass];
@@ -745,7 +745,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
png_bytep srcptr;
png_bytep dstptr;
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && _mmx_supported */ )
@@ -854,7 +854,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
);
}
else /* mmx _not supported - Use modified C routine */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
register png_uint_32 i;
png_uint_32 initial_val = BPP2 * png_pass_start[png_ptr->pass];
@@ -898,7 +898,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
png_bytep srcptr;
png_bytep dstptr;
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && _mmx_supported */ )
@@ -1022,7 +1022,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
);
}
else /* mmx _not supported - Use modified C routine */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
register png_uint_32 i;
png_uint_32 initial_val = BPP3 * png_pass_start[png_ptr->pass];
@@ -1066,7 +1066,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
png_bytep srcptr;
png_bytep dstptr;
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && _mmx_supported */ )
@@ -1197,7 +1197,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
);
}
else /* mmx _not supported - Use modified C routine */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
register png_uint_32 i;
png_uint_32 initial_val = BPP4 * png_pass_start[png_ptr->pass];
@@ -1241,7 +1241,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
png_bytep srcptr;
png_bytep dstptr;
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
/* && _mmx_supported */ )
@@ -1389,7 +1389,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
);
}
else /* mmx _not supported - Use modified C routine */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
register png_uint_32 i;
png_uint_32 initial_val = BPP6 * png_pass_start[png_ptr->pass];
@@ -1480,7 +1480,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
} /* end png_combine_row() */
#endif /* PNG_HAVE_ASSEMBLER_COMBINE_ROW */
#endif /* PNG_HAVE_MMX_COMBINE_ROW */
@@ -1492,7 +1492,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
/*===========================================================================*/
#if defined(PNG_READ_INTERLACING_SUPPORTED)
#if defined(PNG_HAVE_ASSEMBLER_READ_INTERLACE)
#if defined(PNG_HAVE_MMX_READ_INTERLACE)
/* png_do_read_interlace() is called after any 16-bit to 8-bit conversion
* has taken place. [GRR: what other steps come before and/or after?]
@@ -1510,7 +1510,7 @@ png_do_read_interlace(png_structp png_ptr)
png_debug(1, "in png_do_read_interlace (pnggccrd.c)\n");
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_MMX_CODE_SUPPORTED)
if (_mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
@@ -1723,7 +1723,7 @@ png_do_read_interlace(png_structp png_ptr)
/* New code by Nirav Chhatrapati - Intel Corporation */
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_MMX_CODE_SUPPORTED)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE)
/* && _mmx_supported */ )
@@ -2628,7 +2628,7 @@ png_do_read_interlace(png_structp png_ptr)
/* GRR 19991007: does it? or should pixel_bytes in each
* block be replaced with immediate value (e.g., 1)? */
/* GRR 19991017: replaced with constants in each case */
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
if (pixel_bytes == 1)
{
@@ -2753,13 +2753,13 @@ png_do_read_interlace(png_structp png_ptr)
} /* end png_do_read_interlace() */
#endif /* PNG_HAVE_ASSEMBLER_READ_INTERLACE */
#endif /* PNG_HAVE_MMX_READ_INTERLACE */
#endif /* PNG_READ_INTERLACING_SUPPORTED */
#if defined(PNG_HAVE_ASSEMBLER_READ_FILTER_ROW)
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_HAVE_MMX_READ_FILTER_ROW)
#if defined(PNG_MMX_CODE_SUPPORTED)
// These variables are utilized in the functions below. They are declared
// globally here to ensure alignment on 8-byte boundaries.
@@ -5066,7 +5066,7 @@ png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row,
} // end of png_read_filter_row_mmx_up()
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
@@ -5088,7 +5088,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
char filnm[10];
#endif
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_MMX_CODE_SUPPORTED)
/* GRR: these are superseded by png_ptr->asm_flags: */
#define UseMMX_sub 1 // GRR: converted 20000730
#define UseMMX_up 1 // GRR: converted 20000729
@@ -5102,7 +5102,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
#endif
png_mmx_support();
}
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
#ifdef PNG_DEBUG
png_debug(1, "in png_read_filter_row (pnggccrd.c)\n");
@@ -5111,7 +5111,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
case 0: sprintf(filnm, "none");
break;
case 1: sprintf(filnm, "sub-%s",
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "MMX" :
#endif
@@ -5119,7 +5119,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
"x86");
break;
case 2: sprintf(filnm, "up-%s",
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
#ifdef PNG_MMX_CODE_SUPPORTED
#if !defined(PNG_1_0_X)
(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "MMX" :
#endif
@@ -5127,7 +5127,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
"x86");
break;
case 3: sprintf(filnm, "avg-%s",
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "MMX" :
#endif
@@ -5135,7 +5135,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
"x86");
break;
case 4: sprintf(filnm, "Paeth-%s",
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "MMX":
#endif
@@ -5158,7 +5158,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
break;
case PNG_FILTER_VALUE_SUB:
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
@@ -5170,7 +5170,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
png_read_filter_row_mmx_sub(row_info, row);
}
else
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
png_uint_32 i;
png_uint_32 istop = row_info->rowbytes;
@@ -5187,7 +5187,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
break;
case PNG_FILTER_VALUE_UP:
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
#if defined(PNG_MMX_CODE_SUPPORTED)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
@@ -5199,7 +5199,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
png_read_filter_row_mmx_up(row_info, row, prev_row);
}
else
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
png_uint_32 i;
png_uint_32 istop = row_info->rowbytes;
@@ -5215,7 +5215,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
break;
case PNG_FILTER_VALUE_AVG:
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
@@ -5227,7 +5227,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
png_read_filter_row_mmx_avg(row_info, row, prev_row);
}
else
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
png_uint_32 i;
png_bytep rp = row;
@@ -5253,7 +5253,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
break;
case PNG_FILTER_VALUE_PAETH:
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if defined(PNG_MMX_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
#if !defined(PNG_1_0_X)
if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH) &&
(row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
@@ -5265,7 +5265,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
png_read_filter_row_mmx_paeth(row_info, row, prev_row);
}
else
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#endif /* PNG_MMX_CODE_SUPPORTED */
{
png_uint_32 i;
png_bytep rp = row;
@@ -5326,7 +5326,7 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
}
}
#endif /* PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */
#endif /* PNG_HAVE_MMX_READ_FILTER_ROW */
/*===========================================================================*/