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x86: Don't hardcode the height to 8 in sad8_xy2_mmx

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The height is hardcoded in some of the me_cmp functions, but not
in all of them. But in the case of all other functions, it's hardcoded
in the same place in SIMD functions as in the C reference functions,
while this one function differs from the behaviour of the C code.

(Before 542765ce3eccbca587d54262a512cbdb1407230d, there were a
couple other sad8_*_mmx functions with similar hardcoded height.)

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2022-07-13 23:39:40 +03:00
parent 21c2c57ba5
commit dc55e63578
1 changed files with 1 additions and 2 deletions
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3
libavcodec/x86/me_cmp_init.c
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@ -202,13 +202,12 @@ static inline int sum_mmx(void)
static int sad8_xy2_ ## suf(MpegEncContext *v, const uint8_t *blk2, \
const uint8_t *blk1, ptrdiff_t stride, int h) \
{ \
av_assert2(h == 8); \
__asm__ volatile ( \
"pxor %%mm7, %%mm7 \n\t" \
"pxor %%mm6, %%mm6 \n\t" \
::); \
\
sad8_4_ ## suf(blk1, blk2, stride, 8); \
sad8_4_ ## suf(blk1, blk2, stride, h); \
\
return sum_ ## suf(); \
} \