diff options
| author | Jason Garrett-Glaser <darkshikari@gmail.com> | 2009-06-16 17:33:57 +0000 |
|---|---|---|
| committer | Jason Garrett-Glaser <darkshikari@gmail.com> | 2009-06-16 17:33:57 +0000 |
| commit | 73b02e24604961e49a63ca34203d8f6c56612117 (patch) | |
| tree | 7e643556235ccc0e2d0f190a0fbbdb8856d949af /libavcodec | |
| parent | 010f98f96aa1558a530bad37acd2b77887fedd1e (diff) | |
| download | ffmpeg-73b02e24604961e49a63ca34203d8f6c56612117.tar.gz | |
SSE version of clear_blocks
Originally committed as revision 19206 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/x86/dsputil_mmx.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c index cf3400eca5..e27325818a 100644 --- a/libavcodec/x86/dsputil_mmx.c +++ b/libavcodec/x86/dsputil_mmx.c @@ -528,6 +528,28 @@ static void clear_block_sse(DCTELEM *block) ); } +static void clear_blocks_sse(DCTELEM *blocks) +{\ + __asm__ volatile( + "xorps %%xmm0, %%xmm0 \n" + "mov %1, %%"REG_a" \n" + "1: \n" + "movaps %%xmm0, (%0, %%"REG_a") \n" + "movaps %%xmm0, 16(%0, %%"REG_a") \n" + "movaps %%xmm0, 32(%0, %%"REG_a") \n" + "movaps %%xmm0, 48(%0, %%"REG_a") \n" + "movaps %%xmm0, 64(%0, %%"REG_a") \n" + "movaps %%xmm0, 80(%0, %%"REG_a") \n" + "movaps %%xmm0, 96(%0, %%"REG_a") \n" + "movaps %%xmm0, 112(%0, %%"REG_a") \n" + "add $128, %%"REG_a" \n" + " js 1b \n" + : : "r" (((uint8_t *)blocks)+128*6), + "i" (-128*6) + : "%"REG_a + ); +} + static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w){ x86_reg i=0; __asm__ volatile( @@ -2671,8 +2693,10 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx) c->add_pixels_clamped = add_pixels_clamped_mmx; c->clear_block = clear_block_mmx; c->clear_blocks = clear_blocks_mmx; - if (mm_flags & FF_MM_SSE) - c->clear_block = clear_block_sse; + if (mm_flags & FF_MM_SSE){ + c->clear_block = clear_block_sse; + c->clear_blocks = clear_blocks_sse; + } #define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU) \ c->PFX ## _pixels_tab[IDX][0] = PFX ## _pixels ## SIZE ## _ ## CPU; \ |