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simplify yuv2yuv1() 

Originally committed as revision 27320 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Michael Niedermayer 2008-07-17 23:35:36 +00:00
parent c52d2da905
commit 7bae01c62c
1 changed files with 7 additions and 16 deletions
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23
libswscale/swscale_template.c
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@ -973,29 +973,20 @@ static inline void RENAME(yuv2yuv1)(int16_t *lumSrc, int16_t *chrSrc,
uint8_t *dest, uint8_t *uDest, uint8_t *vDest, long dstW, long chrDstW)
{
#ifdef HAVE_MMX
if (uDest)
{
asm volatile(
YSCALEYUV2YV121
:: "r" (chrSrc + chrDstW), "r" (uDest + chrDstW),
"g" (-chrDstW)
: "%"REG_a
);
long p= uDest ? 3 : 1;
uint8_t *src[3]= {lumSrc + dstW, chrSrc + chrDstW, chrSrc + VOFW + chrDstW};
uint8_t *dst[3]= {dest, uDest, vDest};
long counter[3] = {dstW, chrDstW, chrDstW};
while(p--){
asm volatile(
YSCALEYUV2YV121
:: "r" (chrSrc + VOFW + chrDstW), "r" (vDest + chrDstW),
"g" (-chrDstW)
:: "r" (src[p]), "r" (dst[p] + counter[p]),
"g" (-counter[p])
: "%"REG_a
);
}
asm volatile(
YSCALEYUV2YV121
:: "r" (lumSrc + dstW), "r" (dest + dstW),
"g" (-dstW)
: "%"REG_a
);
#else
int i;
for (i=0; i<dstW; i++)