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| author | Ivo van Poorten <ivop@euronet.nl> | 2007-04-18 09:27:59 +0000 |
|---|---|---|
| committer | Ivo van Poorten <ivop@euronet.nl> | 2007-04-18 09:27:59 +0000 |
| commit | 35a99949778ee8155cd64e774a11be7e7b457ac2 (patch) | |
| tree | cf61578213a4c25074b50b628961a22b4ad4bd83 | |
| parent | 39830570652697740618ebfccefea57b800ea516 (diff) | |
skip MMX code in rgb24tobgr24 if the size of the input is smaller than the
size of the units the MMX code processes
Originally committed as revision 23015 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
| -rw-r--r-- | libswscale/rgb2rgb_template.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c index 2e2066b2cb..f06e4ed72d 100644 --- a/libswscale/rgb2rgb_template.c +++ b/libswscale/rgb2rgb_template.c @@ -1435,6 +1435,8 @@ static inline void RENAME(rgb24tobgr24)(const uint8_t *src, uint8_t *dst, long s #ifdef HAVE_MMX long mmx_size= 23 - src_size; asm volatile ( + "test %%"REG_a", %%"REG_a" \n\t" + "jns 2f \n\t" "movq "MANGLE(mask24r)", %%mm5 \n\t" "movq "MANGLE(mask24g)", %%mm6 \n\t" "movq "MANGLE(mask24b)", %%mm7 \n\t" @@ -1471,6 +1473,7 @@ static inline void RENAME(rgb24tobgr24)(const uint8_t *src, uint8_t *dst, long s MOVNTQ" %%mm1, 16(%2, %%"REG_a")\n\t" "add $24, %%"REG_a" \n\t" " js 1b \n\t" + "2: \n\t" : "+a" (mmx_size) : "r" (src-mmx_size), "r"(dst-mmx_size) ); |