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skip MMX code in rgb32to15 if the size of the input is smaller than the

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size of the units the MMX code processes

Originally committed as revision 23013 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Ivo van Poorten 2007-04-18 09:24:49 +00:00
parent 10e26bc782
commit b2117ceed0
1 changed files with 2 additions and 0 deletions
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2
libswscale/rgb2rgb_template.c
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@ -513,6 +513,7 @@ static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, long src_
"movq %3, %%mm5 \n\t"
"movq %4, %%mm6 \n\t"
"movq %5, %%mm7 \n\t"
"jmp 2f \n\t"
ASMALIGN(4)
"1: \n\t"
PREFETCH" 32(%1) \n\t"
@ -536,6 +537,7 @@ static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, long src_
MOVNTQ" %%mm0, (%0) \n\t"
"add $16, %1 \n\t"
"add $8, %0 \n\t"
"2: \n\t"
"cmp %2, %1 \n\t"
" jb 1b \n\t"
: "+r" (d), "+r"(s)