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mix3to2 in SSE
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3679 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -402,11 +402,32 @@ static void mix3to2 (sample_t * samples, sample_t bias)
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int i;
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sample_t common;
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#ifdef HAVE_SSE
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asm volatile(
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"movlps %1, %%xmm7 \n\t"
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"shufps $0x00, %%xmm7, %%xmm7 \n\t"
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"movl $-1024, %%esi \n\t"
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"1: \n\t"
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"movaps 1024(%0, %%esi), %%xmm0 \n\t"
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"addps %%xmm7, %%xmm0 \n\t" //common
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"movaps (%0, %%esi), %%xmm1 \n\t"
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"movaps 2048(%0, %%esi), %%xmm2 \n\t"
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"addps %%xmm0, %%xmm1 \n\t"
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"addps %%xmm0, %%xmm2 \n\t"
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"movaps %%xmm1, (%0, %%esi) \n\t"
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"movaps %%xmm2, 1024(%0, %%esi) \n\t"
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"addl $16, %%esi \n\t"
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" jnz 1b \n\t"
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:: "r" (samples+256), "m" (bias)
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: "%esi"
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);
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#else
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for (i = 0; i < 256; i++) {
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common = samples[i + 256] + bias;
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samples[i] += common;
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samples[i + 256] = samples[i + 512] + common;
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}
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#endif
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}
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static void mix21to2 (sample_t * left, sample_t * right, sample_t bias)
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@ -670,7 +691,7 @@ void downmix (sample_t * samples, int acmod, int output, sample_t bias,
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break;
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case CONVERT (A52_3F2R, A52_2F1R):
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mix3to2 (samples, bias);
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mix3to2 (samples, bias); //FIXME possible bug? (output doesnt seem to be used)
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move2to1 (samples + 768, samples + 512, bias);
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break;
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