diff options
author | 2001-12-18 02:48:14 +0000 | |
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committer | 2001-12-18 02:48:14 +0000 | |
commit | 0a76350996f576ede23b8ca5376658924010a46a (patch) | |
tree | 062fc1dddabcc952887df4007dac32384c3896e7 /liba52/resample_mmx.c | |
parent | c7a0e6827fb1e1f886e05789ac9aa312c0817c14 (diff) |
mmx opt
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3578 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'liba52/resample_mmx.c')
-rw-r--r-- | liba52/resample_mmx.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/liba52/resample_mmx.c b/liba52/resample_mmx.c index e78f26f304..356220b128 100644 --- a/liba52/resample_mmx.c +++ b/liba52/resample_mmx.c @@ -320,6 +320,49 @@ int a52_resample(float * _f, int16_t * s16) } break; case A52_2F2R | A52_LFE: +#ifdef HAVE_MMX + asm volatile( + "movl $-1024, %%esi \n\t" + "movq magicF2W, %%mm7 \n\t" +// "pxor %%mm6, %%mm6 \n\t" + "1: \n\t" + "movq 1024(%1, %%esi), %%mm0 \n\t" + "movq 2048(%1, %%esi), %%mm1 \n\t" + "movq 3072(%1, %%esi), %%mm2 \n\t" + "movq 4096(%1, %%esi), %%mm3 \n\t" + "movq (%1, %%esi), %%mm5 \n\t" + "psubd %%mm7, %%mm0 \n\t" + "psubd %%mm7, %%mm1 \n\t" + "psubd %%mm7, %%mm2 \n\t" + "psubd %%mm7, %%mm3 \n\t" + "psubd %%mm7, %%mm5 \n\t" + "leal (%%esi, %%esi, 2), %%edi \n\t" + + "packssdw %%mm2, %%mm0 \n\t" // CcAa + "packssdw %%mm3, %%mm1 \n\t" // DdBb + "packssdw %%mm5, %%mm5 \n\t" // FfFf + "movq %%mm0, %%mm2 \n\t" // CcAa + "punpcklwd %%mm1, %%mm0 \n\t" // BAba + "punpckhwd %%mm1, %%mm2 \n\t" // DCdc + "pxor %%mm4, %%mm4 \n\t" // 0000 + "punpcklwd %%mm5, %%mm4 \n\t" // F0f0 + "movq %%mm0, %%mm1 \n\t" // BAba + "movq %%mm4, %%mm3 \n\t" // F0f0 + "punpckldq %%mm2, %%mm0 \n\t" // dcba + "punpckhdq %%mm1, %%mm1 \n\t" // BABA + "punpckldq %%mm1, %%mm4 \n\t" // BAf0 + "punpckhdq %%mm3, %%mm2 \n\t" // F0DC + + "movq %%mm0, (%0, %%edi) \n\t" + "movq %%mm4, 8(%0, %%edi) \n\t" + "movq %%mm2, 16(%0, %%edi) \n\t" + "addl $8, %%esi \n\t" + " jnz 1b \n\t" + "emms \n\t" + :: "r" (s16+1536), "r" (f+256) + :"%esi", "%edi", "memory" + ); +#else for (i = 0; i < 256; i++) { s16[6*i] = convert (f[i+256]); s16[6*i+1] = convert (f[i+512]); @@ -328,6 +371,7 @@ int a52_resample(float * _f, int16_t * s16) s16[6*i+4] = 0; s16[6*i+5] = convert (f[i]); } +#endif break; case A52_3F2R | A52_LFE: #ifdef HAVE_MMX |