diff options
Diffstat (limited to 'media/libtheora/lib/x86/sse2idct.c')
| -rw-r--r-- | media/libtheora/lib/x86/sse2idct.c | 44 |
1 files changed, 20 insertions, 24 deletions
diff --git a/media/libtheora/lib/x86/sse2idct.c b/media/libtheora/lib/x86/sse2idct.c index 5f8523fa5f..4597ab074f 100644 --- a/media/libtheora/lib/x86/sse2idct.c +++ b/media/libtheora/lib/x86/sse2idct.c @@ -208,6 +208,7 @@ const unsigned short __attribute__((aligned(16),used)) OC_IDCT_CONSTS[64]={ static void oc_idct8x8_slow_sse2(ogg_int16_t _y[64],ogg_int16_t _x[64]){ OC_ALIGN16(ogg_int16_t buf[16]); + int i; /*This routine accepts an 8x8 matrix pre-transposed.*/ __asm__ __volatile__( /*Load rows 2, 3, 5, and 6 for the first stage of the iDCT.*/ @@ -230,19 +231,16 @@ static void oc_idct8x8_slow_sse2(ogg_int16_t _y[64],ogg_int16_t _x[64]){ :[x]"m"(OC_CONST_ARRAY_OPERAND(ogg_int16_t,_x,64)), [c]"m"(OC_CONST_ARRAY_OPERAND(ogg_int16_t,OC_IDCT_CONSTS,128)) ); - if(_x!=_y){ - int i; - __asm__ __volatile__("pxor %%xmm0,%%xmm0\n\t"::); - /*Clear input data for next block (decoder only).*/ - for(i=0;i<2;i++){ - __asm__ __volatile__( - "movdqa %%xmm0,"OC_MEM_OFFS(0x00,x)"\n\t" - "movdqa %%xmm0,"OC_MEM_OFFS(0x10,x)"\n\t" - "movdqa %%xmm0,"OC_MEM_OFFS(0x20,x)"\n\t" - "movdqa %%xmm0,"OC_MEM_OFFS(0x30,x)"\n\t" - :[x]"=m"(OC_ARRAY_OPERAND(ogg_int16_t,_x+i*32,32)) - ); - } + __asm__ __volatile__("pxor %%xmm0,%%xmm0\n\t"::); + /*Clear input data for next block (decoder only).*/ + for(i=0;i<2;i++){ + __asm__ __volatile__( + "movdqa %%xmm0,"OC_MEM_OFFS(0x00,x)"\n\t" + "movdqa %%xmm0,"OC_MEM_OFFS(0x10,x)"\n\t" + "movdqa %%xmm0,"OC_MEM_OFFS(0x20,x)"\n\t" + "movdqa %%xmm0,"OC_MEM_OFFS(0x30,x)"\n\t" + :[x]"=m"(OC_ARRAY_OPERAND(ogg_int16_t,_x+i*32,32)) + ); } } @@ -411,17 +409,15 @@ static void oc_idct8x8_10_sse2(ogg_int16_t _y[64],ogg_int16_t _x[64]){ :[x]"m"OC_CONST_ARRAY_OPERAND(ogg_int16_t,_x,64), [c]"m"(OC_CONST_ARRAY_OPERAND(ogg_int16_t,OC_IDCT_CONSTS,128)) ); - if(_x!=_y){ - /*Clear input data for next block (decoder only).*/ - __asm__ __volatile__( - "pxor %%mm0,%%mm0\n\t" - "movq %%mm0,"OC_MEM_OFFS(0x00,x)"\n\t" - "movq %%mm0,"OC_MEM_OFFS(0x10,x)"\n\t" - "movq %%mm0,"OC_MEM_OFFS(0x20,x)"\n\t" - "movq %%mm0,"OC_MEM_OFFS(0x30,x)"\n\t" - :[x]"+m"(OC_ARRAY_OPERAND(ogg_int16_t,_x,28)) - ); - } + /*Clear input data for next block (decoder only).*/ + __asm__ __volatile__( + "pxor %%mm0,%%mm0\n\t" + "movq %%mm0,"OC_MEM_OFFS(0x00,x)"\n\t" + "movq %%mm0,"OC_MEM_OFFS(0x10,x)"\n\t" + "movq %%mm0,"OC_MEM_OFFS(0x20,x)"\n\t" + "movq %%mm0,"OC_MEM_OFFS(0x30,x)"\n\t" + :[x]"+m"(OC_ARRAY_OPERAND(ogg_int16_t,_x,28)) + ); } /*Performs an inverse 8x8 Type-II DCT transform. |