ffmpeg | branch: master | Timothy Gu <timothyg...@gmail.com> | Tue Feb 9 01:59:46 2016 +0000| [c8b1612af03b6ad1e6bcf56fad73544ba2a2893c] | committer: Timothy Gu
x86/vf_blend: Move multiplying to a macro Reviewed-by: Paul B Mahol <one...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c8b1612af03b6ad1e6bcf56fad73544ba2a2893c --- libavfilter/x86/vf_blend.asm | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/libavfilter/x86/vf_blend.asm b/libavfilter/x86/vf_blend.asm index 9388a74..50b5f8a 100644 --- a/libavfilter/x86/vf_blend.asm +++ b/libavfilter/x86/vf_blend.asm @@ -102,6 +102,15 @@ BLEND_INIT difference128, 4 jl .loop BLEND_END +%macro MULTIPLY 3 ; a, b, pw_1 + pmullw %1, %2 ; xxxxxxxx a * b + paddw %1, %3 + mova %2, %1 + psrlw %2, 8 + paddw %1, %2 + psrlw %1, 8 ; 00xx00xx a * b / 255 +%endmacro + BLEND_INIT multiply, 4 pxor m2, m2 mova m3, [pw_1] @@ -116,12 +125,7 @@ BLEND_INIT multiply, 4 punpcklbw m0, m2 ; 00xx00xx punpcklbw m1, m2 - pmullw m0, m1 ; xxxxxxxx a * b - paddw m0, m3 - mova m1, m0 - psrlw m1, 8 - paddw m0, m1 - psrlw m0, 8 ; 00xx00xx a * b / 255 + MULTIPLY m0, m1, m3 packuswb m0, m0 ; 0000xxxx movh [dstq + xq], m0 _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
