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| author | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-25 17:45:25 +0000 |
|---|---|---|
| committer | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-12-25 17:45:25 +0000 |
| commit | 5df91323f68c2687fd3559b8fab7d266e3480236 (patch) | |
| tree | 43ff0fc244a636915a048c146b0ebff4272de170 /liba52 | |
| parent | f9c8122cae4a1089f6fdd32b2e8b67208a400613 (diff) | |
| download | mpv-5df91323f68c2687fd3559b8fab7d266e3480236.tar.bz2 mpv-5df91323f68c2687fd3559b8fab7d266e3480236.tar.xz | |
mix22toS & move2to1 in SSE
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3742 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'liba52')
| -rw-r--r-- | liba52/downmix.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/liba52/downmix.c b/liba52/downmix.c index 5bd51b4e36..07cb396d9a 100644 --- a/liba52/downmix.c +++ b/liba52/downmix.c @@ -592,11 +592,34 @@ static void mix22toS (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" + "addps 3072(%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 + 768]; samples[i] += bias - surround; samples[i + 256] += bias + surround; } +#endif } static void mix32to2 (sample_t * samples, sample_t bias) @@ -675,8 +698,29 @@ static void move2to1 (sample_t * src, sample_t * dest, sample_t bias) { int i; +#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 (%0, %%esi), %%xmm0 \n\t" + "movaps 16(%0, %%esi), %%xmm1 \n\t" + "addps 1024(%0, %%esi), %%xmm0 \n\t" + "addps 1040(%0, %%esi), %%xmm1 \n\t" + "addps %%xmm7, %%xmm0 \n\t" + "addps %%xmm7, %%xmm1 \n\t" + "movaps %%xmm0, (%1, %%esi) \n\t" + "movaps %%xmm1, 16(%1, %%esi) \n\t" + "addl $32, %%esi \n\t" + " jnz 1b \n\t" + :: "r" (src+256), "r" (dest+256), "m" (bias) + : "%esi" + ); +#else for (i = 0; i < 256; i++) dest[i] = src[i] + src[i + 256] + bias; +#endif } static void zero (sample_t * samples) |