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Code Issues Releases Activity

avg_pixels4_mmx2

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Originally committed as revision 11829 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2008-02-03 17:04:33 +00:00
parent 6c01d0069d
commit b313e8159c
2 changed files with 25 additions and 2 deletions
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2
libavcodec/i386/dsputil_mmx.c
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@ -206,13 +206,11 @@ DECLARE_ALIGNED_16(const double, ff_pd_2[2]) = { 2.0, 2.0 };
#define put_pixels16_mmx2 put_pixels16_mmx
#define put_pixels8_mmx2 put_pixels8_mmx
#define put_pixels4_mmx2 put_pixels4_mmx
#define avg_pixels4_mmx2 avg_pixels4_mmx
#define put_no_rnd_pixels16_mmx2 put_no_rnd_pixels16_mmx
#define put_no_rnd_pixels8_mmx2 put_no_rnd_pixels8_mmx
#define put_pixels16_3dnow put_pixels16_mmx
#define put_pixels8_3dnow put_pixels8_mmx
#define put_pixels4_3dnow put_pixels4_mmx
#define avg_pixels4_3dnow avg_pixels4_mmx
#define put_no_rnd_pixels16_3dnow put_no_rnd_pixels16_mmx
#define put_no_rnd_pixels8_3dnow put_no_rnd_pixels8_mmx

25
libavcodec/i386/dsputil_mmx_avg.h
View File

@ -795,6 +795,31 @@ static void DEF(avg_pixels8_xy2)(uint8_t *block, const uint8_t *pixels, int line
:"%"REG_a, "memory");
}
static void DEF(avg_pixels4)(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
do {
asm volatile(
"movd (%1), %%mm0 \n\t"
"movd (%1, %2), %%mm1 \n\t"
"movd (%1, %2, 2), %%mm2 \n\t"
"movd (%1, %3), %%mm3 \n\t"
PAVGB" (%0), %%mm0 \n\t"
PAVGB" (%0, %2), %%mm1 \n\t"
PAVGB" (%0, %2, 2), %%mm2 \n\t"
PAVGB" (%0, %3), %%mm3 \n\t"
"movd %%mm0, (%1) \n\t"
"movd %%mm1, (%1, %2) \n\t"
"movd %%mm2, (%1, %2, 2) \n\t"
"movd %%mm3, (%1, %3) \n\t"
::"S"(pixels), "D"(block),
"r" ((long)line_size), "r"(3L*line_size)
:"memory");
block += 4*line_size;
pixels += 4*line_size;
h -= 4;
} while(h > 0);
}
//FIXME the following could be optimized too ...
static void DEF(put_no_rnd_pixels16_x2)(uint8_t *block, const uint8_t *pixels, int line_size, int h){
DEF(put_no_rnd_pixels8_x2)(block , pixels , line_size, h);