mirror of https://git.ffmpeg.org/ffmpeg.git
swresample/resample: mmx2/sse2 int16 linear interpolation
About three times faster Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -81,9 +81,11 @@
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# define RENAME(N) N ## _int16
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# elif defined(TEMPLATE_RESAMPLE_S16_MMX2)
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# define COMMON_CORE COMMON_CORE_INT16_MMX2
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# define LINEAR_CORE LINEAR_CORE_INT16_MMX2
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# define RENAME(N) N ## _int16_mmx2
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# elif defined(TEMPLATE_RESAMPLE_S16_SSE2)
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# define COMMON_CORE COMMON_CORE_INT16_SSE2
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# define LINEAR_CORE LINEAR_CORE_INT16_SSE2
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# define RENAME(N) N ## _int16_sse2
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# endif
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@ -163,10 +165,14 @@ int RENAME(swri_resample)(ResampleContext *c, DELEM *dst, const DELEM *src, int
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OUT(dst[dst_index], val);
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}else if(c->linear){
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FELEM2 v2=0;
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#ifdef LINEAR_CORE
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LINEAR_CORE
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#else
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for(i=0; i<c->filter_length; i++){
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val += src[sample_index + i] * (FELEM2)filter[i];
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v2 += src[sample_index + i] * (FELEM2)filter[i + c->filter_alloc];
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}
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#endif
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val+=(v2-val)*(FELEML)frac / c->src_incr;
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OUT(dst[dst_index], val);
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}else{
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@ -213,6 +219,7 @@ int RENAME(swri_resample)(ResampleContext *c, DELEM *dst, const DELEM *src, int
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}
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#undef COMMON_CORE
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#undef LINEAR_CORE
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#undef RENAME
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#undef FILTER_SHIFT
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#undef DELEM
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@ -50,6 +50,34 @@ __asm__ volatile(\
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NAMED_CONSTRAINTS_ADD(ff_resample_int16_rounder)\
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);
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#define LINEAR_CORE_INT16_MMX2 \
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x86_reg len= -2*c->filter_length;\
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__asm__ volatile(\
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"pxor %%mm0, %%mm0 \n\t"\
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"pxor %%mm2, %%mm2 \n\t"\
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"1: \n\t"\
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"movq (%3, %0), %%mm1 \n\t"\
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"movq %%mm1, %%mm3 \n\t"\
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"pmaddwd (%4, %0), %%mm1 \n\t"\
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"pmaddwd (%5, %0), %%mm3 \n\t"\
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"paddd %%mm1, %%mm0 \n\t"\
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"paddd %%mm3, %%mm2 \n\t"\
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"add $8, %0 \n\t"\
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" js 1b \n\t"\
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"pshufw $0x0E, %%mm0, %%mm1 \n\t"\
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"pshufw $0x0E, %%mm2, %%mm3 \n\t"\
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"paddd %%mm1, %%mm0 \n\t"\
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"paddd %%mm3, %%mm2 \n\t"\
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"movd %%mm0, %1 \n\t"\
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"movd %%mm2, %2 \n\t"\
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: "+r" (len),\
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"=r" (val),\
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"=r" (v2)\
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: "r" (((uint8_t*)(src+sample_index))-len),\
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"r" (((uint8_t*)filter)-len),\
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"r" (((uint8_t*)(filter+c->filter_alloc))-len)\
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);
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#define COMMON_CORE_INT16_SSE2 \
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x86_reg len= -2*c->filter_length;\
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__asm__ volatile(\
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@ -74,6 +102,39 @@ __asm__ volatile(\
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NAMED_CONSTRAINTS_ADD(ff_resample_int16_rounder)\
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);
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#define LINEAR_CORE_INT16_SSE2 \
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x86_reg len= -2*c->filter_length;\
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__asm__ volatile(\
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"pxor %%xmm0, %%xmm0 \n\t"\
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"pxor %%xmm2, %%xmm2 \n\t"\
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"1: \n\t"\
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"movdqu (%3, %0), %%xmm1 \n\t"\
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"movdqa %%xmm1, %%xmm3 \n\t"\
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"pmaddwd (%4, %0), %%xmm1 \n\t"\
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"pmaddwd (%5, %0), %%xmm3 \n\t"\
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"paddd %%xmm1, %%xmm0 \n\t"\
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"paddd %%xmm3, %%xmm2 \n\t"\
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"add $16, %0 \n\t"\
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" js 1b \n\t"\
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"pshufd $0x0E, %%xmm0, %%xmm1 \n\t"\
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"pshufd $0x0E, %%xmm2, %%xmm3 \n\t"\
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"paddd %%xmm1, %%xmm0 \n\t"\
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"paddd %%xmm3, %%xmm2 \n\t"\
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"pshufd $0x01, %%xmm0, %%xmm1 \n\t"\
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"pshufd $0x01, %%xmm2, %%xmm3 \n\t"\
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"paddd %%xmm1, %%xmm0 \n\t"\
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"paddd %%xmm3, %%xmm2 \n\t"\
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"movd %%xmm0, %1 \n\t"\
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"movd %%xmm2, %2 \n\t"\
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: "+r" (len),\
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"=r" (val),\
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"=r" (v2)\
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: "r" (((uint8_t*)(src+sample_index))-len),\
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"r" (((uint8_t*)filter)-len),\
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"r" (((uint8_t*)(filter+c->filter_alloc))-len)\
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XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3")\
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);
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#define COMMON_CORE_FLT_SSE \
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x86_reg len= -4*c->filter_length;\
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__asm__ volatile(\
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