xenia-project/FFmpeg
1
0
Fork 0
mirror of https://github.com/xenia-project/FFmpeg.git synced 2024-11-25 12:40:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source 
There is no noticable benefit for such precision.
This commit is contained in:
Clément Bœsch 2012-12-07 00:41:04 +01:00
parent 60ba9a9a88
commit 63e1fc2588
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavfilter/x86/gradfun.c
View File

@ -136,9 +136,9 @@ static void gradfun_filter_line_ssse3(uint8_t *dst, const uint8_t *src, const ui
"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"