mirror of https://git.ffmpeg.org/ffmpeg.git
avg_pixels4_mmx2
Originally committed as revision 11829 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -206,13 +206,11 @@ DECLARE_ALIGNED_16(const double, ff_pd_2[2]) = { 2.0, 2.0 };
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#define put_pixels16_mmx2 put_pixels16_mmx
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#define put_pixels8_mmx2 put_pixels8_mmx
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#define put_pixels4_mmx2 put_pixels4_mmx
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#define avg_pixels4_mmx2 avg_pixels4_mmx
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#define put_no_rnd_pixels16_mmx2 put_no_rnd_pixels16_mmx
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#define put_no_rnd_pixels8_mmx2 put_no_rnd_pixels8_mmx
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#define put_pixels16_3dnow put_pixels16_mmx
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#define put_pixels8_3dnow put_pixels8_mmx
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#define put_pixels4_3dnow put_pixels4_mmx
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#define avg_pixels4_3dnow avg_pixels4_mmx
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#define put_no_rnd_pixels16_3dnow put_no_rnd_pixels16_mmx
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#define put_no_rnd_pixels8_3dnow put_no_rnd_pixels8_mmx
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@ -795,6 +795,31 @@ static void DEF(avg_pixels8_xy2)(uint8_t *block, const uint8_t *pixels, int line
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:"%"REG_a, "memory");
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}
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static void DEF(avg_pixels4)(uint8_t *block, const uint8_t *pixels, int line_size, int h)
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{
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do {
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asm volatile(
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"movd (%1), %%mm0 \n\t"
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"movd (%1, %2), %%mm1 \n\t"
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"movd (%1, %2, 2), %%mm2 \n\t"
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"movd (%1, %3), %%mm3 \n\t"
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PAVGB" (%0), %%mm0 \n\t"
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PAVGB" (%0, %2), %%mm1 \n\t"
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PAVGB" (%0, %2, 2), %%mm2 \n\t"
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PAVGB" (%0, %3), %%mm3 \n\t"
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"movd %%mm0, (%1) \n\t"
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"movd %%mm1, (%1, %2) \n\t"
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"movd %%mm2, (%1, %2, 2) \n\t"
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"movd %%mm3, (%1, %3) \n\t"
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::"S"(pixels), "D"(block),
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"r" ((long)line_size), "r"(3L*line_size)
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:"memory");
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block += 4*line_size;
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pixels += 4*line_size;
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h -= 4;
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} while(h > 0);
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}
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//FIXME the following could be optimized too ...
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static void DEF(put_no_rnd_pixels16_x2)(uint8_t *block, const uint8_t *pixels, int line_size, int h){
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DEF(put_no_rnd_pixels8_x2)(block , pixels , line_size, h);
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