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| author | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-25 17:36:54 +0000 |
|---|---|---|
| committer | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-25 17:36:54 +0000 |
| commit | f9c8122cae4a1089f6fdd32b2e8b67208a400613 (patch) | |
| tree | ba86eb09cfe88066202d0b3f70ad3e46195d25ad /liba52 | |
| parent | 1c6fe451890076a648cf7f3e309f7828fab27721 (diff) | |
| download | mpv-f9c8122cae4a1089f6fdd32b2e8b67208a400613.tar.bz2 mpv-f9c8122cae4a1089f6fdd32b2e8b67208a400613.tar.xz | |
mix31to2 & mix31toS in SSE
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3741 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'liba52')
| -rw-r--r-- | liba52/downmix.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/liba52/downmix.c b/liba52/downmix.c index d6991fffba..5bd51b4e36 100644 --- a/liba52/downmix.c +++ b/liba52/downmix.c @@ -521,11 +521,33 @@ static void mix31to2 (sample_t * samples, sample_t bias) int i; sample_t common; +#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 1024(%0, %%esi), %%xmm0 \n\t" + "addps 3072(%0, %%esi), %%xmm0 \n\t" + "addps %%xmm7, %%xmm0 \n\t" // common + "movaps (%0, %%esi), %%xmm1 \n\t" + "movaps 2048(%0, %%esi), %%xmm2 \n\t" + "addps %%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++) { common = samples[i + 256] + samples[i + 768] + bias; samples[i] += common; samples[i + 256] = samples[i + 512] + common; } +#endif } static void mix31toS (sample_t * samples, sample_t bias) @@ -533,12 +555,36 @@ static void mix31toS (sample_t * samples, sample_t bias) int i; sample_t common, 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 1024(%0, %%esi), %%xmm0 \n\t" + "movaps 3072(%0, %%esi), %%xmm3 \n\t" // surround + "addps %%xmm7, %%xmm0 \n\t" // common + "movaps (%0, %%esi), %%xmm1 \n\t" + "movaps 2048(%0, %%esi), %%xmm2 \n\t" + "addps %%xmm0, %%xmm1 \n\t" + "addps %%xmm0, %%xmm2 \n\t" + "subps %%xmm3, %%xmm1 \n\t" + "addps %%xmm3, %%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++) { common = samples[i + 256] + bias; surround = samples[i + 768]; samples[i] += common - surround; samples[i + 256] = samples[i + 512] + common + surround; } +#endif } static void mix22toS (sample_t * samples, sample_t bias) |