diff options
| author | Clément Bœsch <ubitux@gmail.com> | 2012-12-07 00:36:29 +0100 |
|---|---|---|
| committer | Clément Bœsch <ubitux@gmail.com> | 2012-12-19 03:13:25 +0100 |
| commit | 49de902a1e074133583dd5d8599aa057ed1d1485 (patch) | |
| tree | 6e59d0b6ee2900520f2dcee9647fff548cae6091 /libavfilter/x86 | |
| parent | dd8a76ab080d6862ec8e182e805794ebb27be8b0 (diff) | |
| download | ffmpeg-49de902a1e074133583dd5d8599aa057ed1d1485.tar.gz | |
lavfi/gradfun: fix rounding in MMX code.
Current code divide before increasing precision.
Diffstat (limited to 'libavfilter/x86')
| -rw-r--r-- | libavfilter/x86/gradfun.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/x86/gradfun.c b/libavfilter/x86/gradfun.c index 5e71aabd68..1ca5928241 100644 --- a/libavfilter/x86/gradfun.c +++ b/libavfilter/x86/gradfun.c @@ -62,8 +62,8 @@ static void gradfun_filter_line_mmxext(uint8_t *dst, const uint8_t *src, const u "pminsw %%mm7, %%mm2 \n" // m = -max(0, 127-m) "pmullw %%mm2, %%mm2 \n" "paddw %%mm4, %%mm0 \n" // pix += dither - "pmulhw %%mm2, %%mm1 \n" "psllw $2, %%mm1 \n" // m = m*m*delta >> 14 + "pmulhw %%mm2, %%mm1 \n" "paddw %%mm1, %%mm0 \n" // pix += m "psraw $7, %%mm0 \n" "packuswb %%mm0, %%mm0 \n" |