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x86/vf_blend: optimize difference and negation functions

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Process more pixels per loop.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
pull/264/head^2
James Almer 7 years ago
parent fa50d9360b
commit 0daa1cf073
1 changed files with 24 additions and 16 deletions
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  1. 40
      libavfilter/x86/vf_blend.asm

40
libavfilter/x86/vf_blend.asm
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@ -268,21 +268,25 @@ BLEND_INIT phoenix, 4
BLEND_END
%macro BLEND_ABS 0
BLEND_INIT difference, 3
BLEND_INIT difference, 5
pxor m2, m2
.nextrow:
mov xq, widthq
.loop:
movh m0, [topq + xq]
movh m1, [bottomq + xq]
movu m0, [topq + xq]
movu m1, [bottomq + xq]
punpckhbw m3, m0, m2
punpcklbw m0, m2
punpckhbw m4, m1, m2
punpcklbw m1, m2
psubw m0, m1
psubw m3, m4
ABS1 m0, m1
packuswb m0, m0
movh [dstq + xq], m0
add xq, mmsize / 2
ABS1 m3, m4
packuswb m0, m3
mova [dstq + xq], m0
add xq, mmsize
jl .loop
BLEND_END
@ -311,26 +315,30 @@ BLEND_INIT extremity, 8
jl .loop
BLEND_END
BLEND_INIT negation, 5
BLEND_INIT negation, 8
pxor m2, m2
mova m4, [pw_255]
.nextrow:
mov xq, widthq
.loop:
movh m0, [topq + xq]
movh m1, [bottomq + xq]
movu m0, [topq + xq]
movu m1, [bottomq + xq]
punpckhbw m5, m0, m2
punpcklbw m0, m2
punpckhbw m6, m1, m2
punpcklbw m1, m2
mova m3, m4
psubw m3, m0
psubw m3, m4, m0
psubw m7, m4, m5
psubw m3, m1
psubw m7, m6
ABS1 m3, m1
mova m0, m4
psubw m0, m3
packuswb m0, m0
movh [dstq + xq], m0
add xq, mmsize / 2
ABS1 m7, m1
psubw m0, m4, m3
psubw m1, m4, m7
packuswb m0, m1
mova [dstq + xq], m0
add xq, mmsize
jl .loop
BLEND_END
%endmacro

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