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lavfi/gradfun: remove rounding to match C and SSE code. 

There is no noticable benefit for such precision.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Clément Bœsch 2012-12-07 00:41:04 +01:00 committed by Anton Khirnov
parent 38a2f88d39
commit 1ae44c87c9
1 changed files with 2 additions and 2 deletions
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4
libavfilter/x86/vf_gradfun.c
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@ -136,9 +136,9 @@ static void gradfun_filter_line_ssse3(uint8_t *dst, uint8_t *src, uint16_t *dc,
"psubw %%xmm6, %%xmm2 \n"
"pminsw %%xmm7, %%xmm2 \n" // m = -max(0, 127-m)
"pmullw %%xmm2, %%xmm2 \n"
"psllw $1, %%xmm2 \n"
"psllw $2, %%xmm1 \n"
"paddw %%xmm4, %%xmm0 \n" // pix += dither
"pmulhrsw %%xmm2, %%xmm1 \n" // m = m*m*delta >> 14
"pmulhw %%xmm2, %%xmm1 \n" // m = m*m*delta >> 14
"paddw %%xmm1, %%xmm0 \n" // pix += m
"psraw $7, %%xmm0 \n"
"packuswb %%xmm0, %%xmm0 \n"