Make horizontal mmx scaling code match C code.
Originally committed as revision 27596 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
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@ -2170,7 +2170,6 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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"push %%"REG_b" \n\t"
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"push %%"REG_b" \n\t"
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#endif
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#endif
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"pxor %%mm7, %%mm7 \n\t"
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"pxor %%mm7, %%mm7 \n\t"
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"movq "MANGLE(w02)", %%mm6 \n\t"
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"push %%"REG_BP" \n\t" // we use 7 regs here ...
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"push %%"REG_BP" \n\t" // we use 7 regs here ...
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"mov %%"REG_a", %%"REG_BP" \n\t"
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"mov %%"REG_a", %%"REG_BP" \n\t"
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ASMALIGN(4)
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ASMALIGN(4)
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@ -2185,10 +2184,11 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"pmaddwd %%mm1, %%mm0 \n\t"
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"pmaddwd %%mm1, %%mm0 \n\t"
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"pmaddwd %%mm2, %%mm3 \n\t"
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"pmaddwd %%mm2, %%mm3 \n\t"
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"psrad $8, %%mm0 \n\t"
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"movq %%mm0, %%mm4 \n\t"
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"psrad $8, %%mm3 \n\t"
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"punpckldq %%mm3, %%mm0 \n\t"
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"packssdw %%mm3, %%mm0 \n\t"
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"punpckhdq %%mm3, %%mm4 \n\t"
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"pmaddwd %%mm6, %%mm0 \n\t"
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"paddd %%mm4, %%mm0 \n\t"
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"psrad $7, %%mm0 \n\t"
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"packssdw %%mm0, %%mm0 \n\t"
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"packssdw %%mm0, %%mm0 \n\t"
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"movd %%mm0, (%4, %%"REG_BP") \n\t"
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"movd %%mm0, (%4, %%"REG_BP") \n\t"
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"add $4, %%"REG_BP" \n\t"
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"add $4, %%"REG_BP" \n\t"
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@ -2216,7 +2216,6 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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"push %%"REG_b" \n\t"
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"push %%"REG_b" \n\t"
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#endif
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#endif
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"pxor %%mm7, %%mm7 \n\t"
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"pxor %%mm7, %%mm7 \n\t"
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"movq "MANGLE(w02)", %%mm6 \n\t"
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"push %%"REG_BP" \n\t" // we use 7 regs here ...
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"push %%"REG_BP" \n\t" // we use 7 regs here ...
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"mov %%"REG_a", %%"REG_BP" \n\t"
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"mov %%"REG_a", %%"REG_BP" \n\t"
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ASMALIGN(4)
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ASMALIGN(4)
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@ -2242,11 +2241,11 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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"pmaddwd %%mm2, %%mm5 \n\t"
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"pmaddwd %%mm2, %%mm5 \n\t"
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"paddd %%mm4, %%mm0 \n\t"
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"paddd %%mm4, %%mm0 \n\t"
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"paddd %%mm5, %%mm3 \n\t"
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"paddd %%mm5, %%mm3 \n\t"
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"movq %%mm0, %%mm4 \n\t"
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"psrad $8, %%mm0 \n\t"
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"punpckldq %%mm3, %%mm0 \n\t"
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"psrad $8, %%mm3 \n\t"
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"punpckhdq %%mm3, %%mm4 \n\t"
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"packssdw %%mm3, %%mm0 \n\t"
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"paddd %%mm4, %%mm0 \n\t"
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"pmaddwd %%mm6, %%mm0 \n\t"
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"psrad $7, %%mm0 \n\t"
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"packssdw %%mm0, %%mm0 \n\t"
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"packssdw %%mm0, %%mm0 \n\t"
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"movd %%mm0, (%4, %%"REG_BP") \n\t"
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"movd %%mm0, (%4, %%"REG_BP") \n\t"
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"add $4, %%"REG_BP" \n\t"
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"add $4, %%"REG_BP" \n\t"
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@ -2272,7 +2271,6 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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dst-= counter/2;
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dst-= counter/2;
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asm volatile(
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asm volatile(
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"pxor %%mm7, %%mm7 \n\t"
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"pxor %%mm7, %%mm7 \n\t"
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"movq "MANGLE(w02)", %%mm6 \n\t"
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ASMALIGN(4)
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ASMALIGN(4)
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"1: \n\t"
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"1: \n\t"
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"mov %2, %%"REG_c" \n\t"
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"mov %2, %%"REG_c" \n\t"
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@ -2297,10 +2295,11 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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"cmp %4, %%"REG_c" \n\t"
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"cmp %4, %%"REG_c" \n\t"
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" jb 2b \n\t"
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" jb 2b \n\t"
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"add %6, %1 \n\t"
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"add %6, %1 \n\t"
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"psrad $8, %%mm4 \n\t"
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"movq %%mm4, %%mm0 \n\t"
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"psrad $8, %%mm5 \n\t"
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"punpckldq %%mm5, %%mm4 \n\t"
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"packssdw %%mm5, %%mm4 \n\t"
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"punpckhdq %%mm5, %%mm0 \n\t"
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"pmaddwd %%mm6, %%mm4 \n\t"
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"paddd %%mm0, %%mm4 \n\t"
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"psrad $7, %%mm4 \n\t"
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"packssdw %%mm4, %%mm4 \n\t"
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"packssdw %%mm4, %%mm4 \n\t"
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"mov %3, %%"REG_a" \n\t"
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"mov %3, %%"REG_a" \n\t"
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"movd %%mm4, (%%"REG_a", %0) \n\t"
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"movd %%mm4, (%%"REG_a", %0) \n\t"
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