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| author | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-25 17:29:12 +0000 |
|---|---|---|
| committer | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-25 17:29:12 +0000 |
| commit | 1c6fe451890076a648cf7f3e309f7828fab27721 (patch) | |
| tree | b355113c541c6050e069e8fb8d21c2767c7b354a /liba52 | |
| parent | 26e195ff8927d0946d77e06fb6f60273c68c4b69 (diff) | |
| download | mpv-1c6fe451890076a648cf7f3e309f7828fab27721.tar.bz2 mpv-1c6fe451890076a648cf7f3e309f7828fab27721.tar.xz | |
mix21to2 & mix21toS in SSE
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3740 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'liba52')
| -rw-r--r-- | liba52/downmix.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/liba52/downmix.c b/liba52/downmix.c index 527f38efdd..d6991fffba 100644 --- a/liba52/downmix.c +++ b/liba52/downmix.c @@ -454,11 +454,32 @@ static void mix21to2 (sample_t * left, sample_t * right, sample_t bias) int i; sample_t common; +#ifdef HAVE_SSE + asm volatile( + "movlps %2, %%xmm7 \n\t" + "shufps $0x00, %%xmm7, %%xmm7 \n\t" + "movl $-1024, %%esi \n\t" + "1: \n\t" + "movaps 1024(%1, %%esi), %%xmm0 \n\t" + "addps %%xmm7, %%xmm0 \n\t" //common + "movaps (%0, %%esi), %%xmm1 \n\t" + "movaps (%1, %%esi), %%xmm2 \n\t" + "addps %%xmm0, %%xmm1 \n\t" + "addps %%xmm0, %%xmm2 \n\t" + "movaps %%xmm1, (%0, %%esi) \n\t" + "movaps %%xmm2, (%1, %%esi) \n\t" + "addl $16, %%esi \n\t" + " jnz 1b \n\t" + :: "r" (left+256), "r" (right+256), "m" (bias) + : "%esi" + ); +#else for (i = 0; i < 256; i++) { common = right[i + 256] + bias; left[i] += common; right[i] += common; } +#endif } static void mix21toS (sample_t * samples, sample_t bias) @@ -466,11 +487,33 @@ static void mix21toS (sample_t * samples, sample_t bias) int i; sample_t surround; +#ifdef HAVE_SSE + asm volatile( + "movlps %1, %%xmm7 \n\t" + "shufps $0x00, %%xmm7, %%xmm7 \n\t" + "movl $-1024, %%esi \n\t" + "1: \n\t" + "movaps 2048(%0, %%esi), %%xmm0 \n\t" // surround + "movaps (%0, %%esi), %%xmm1 \n\t" + "movaps 1024(%0, %%esi), %%xmm2 \n\t" + "addps %%xmm7, %%xmm1 \n\t" + "addps %%xmm7, %%xmm2 \n\t" + "subps %%xmm0, %%xmm1 \n\t" + "addps %%xmm0, %%xmm2 \n\t" + "movaps %%xmm1, (%0, %%esi) \n\t" + "movaps %%xmm2, 1024(%0, %%esi) \n\t" + "addl $16, %%esi \n\t" + " jnz 1b \n\t" + :: "r" (samples+256), "m" (bias) + : "%esi" + ); +#else for (i = 0; i < 256; i++) { surround = samples[i + 512]; samples[i] += bias - surround; samples[i + 256] += bias + surround; } +#endif } static void mix31to2 (sample_t * samples, sample_t bias) |