diff options
| author | James Almer <jamrial@gmail.com> | 2014-03-24 02:05:17 +0400 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-03-24 05:34:02 +0400 |
| commit | 63dbba655e7b09bd5bd09d3a8eab270152bb803f (patch) | |
| tree | c6bd91a05ab7f5d6c3fd8ea5a68f60a5f0bb2914 /libswresample/x86 | |
| parent | fa25c4c400649bcc7693107d2d4b9d1fa137173e (diff) | |
swresample/resample: sse float linear interpolation
About two times faster
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample/x86')
| -rw-r--r-- | libswresample/x86/resample_mmx.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/libswresample/x86/resample_mmx.h b/libswresample/x86/resample_mmx.h index 28a317ce78..a0df6e1e1e 100644 --- a/libswresample/x86/resample_mmx.h +++ b/libswresample/x86/resample_mmx.h @@ -156,3 +156,38 @@ __asm__ volatile(\ "r" (((uint8_t*)filter)-len),\ "r" (dst+dst_index)\ ); + +#define LINEAR_CORE_FLT_SSE \ + x86_reg len= -4*c->filter_length;\ +__asm__ volatile(\ + "xorps %%xmm0, %%xmm0 \n\t"\ + "xorps %%xmm2, %%xmm2 \n\t"\ + "1: \n\t"\ + "movups (%3, %0), %%xmm1 \n\t"\ + "movaps %%xmm1, %%xmm3 \n\t"\ + "mulps (%4, %0), %%xmm1 \n\t"\ + "mulps (%5, %0), %%xmm3 \n\t"\ + "addps %%xmm1, %%xmm0 \n\t"\ + "addps %%xmm3, %%xmm2 \n\t"\ + "add $16, %0 \n\t"\ + " js 1b \n\t"\ + "movhlps %%xmm0, %%xmm1 \n\t"\ + "movhlps %%xmm2, %%xmm3 \n\t"\ + "addps %%xmm1, %%xmm0 \n\t"\ + "addps %%xmm3, %%xmm2 \n\t"\ + "movss %%xmm0, %%xmm1 \n\t"\ + "movss %%xmm2, %%xmm3 \n\t"\ + "shufps $1, %%xmm0, %%xmm0 \n\t"\ + "shufps $1, %%xmm2, %%xmm2 \n\t"\ + "addps %%xmm1, %%xmm0 \n\t"\ + "addps %%xmm3, %%xmm2 \n\t"\ + "movss %%xmm0, %1 \n\t"\ + "movss %%xmm2, %2 \n\t"\ + : "+r" (len),\ + "=m" (val),\ + "=m" (v2)\ + : "r" (((uint8_t*)(src+sample_index))-len),\ + "r" (((uint8_t*)filter)-len),\ + "r" (((uint8_t*)(filter+c->filter_alloc))-len)\ + XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3")\ +); |