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Commit 554d8190 authored by Clément Bœsch's avatar Clément Bœsch
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avutil/pixelutils: faster pixelutils_sad_16x16 

501 to 439 decicycles.

See 45c7f399.
parent f4dec0db
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Showing with 11 additions and 5 deletions
libavutil/x86/pixelutils.asm
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...@@ -109,18 +109,24 @@ cglobal pixelutils_sad_16x16, 4,4,0, src1, stride1, src2, stride2 ...@@ -109,18 +109,24 @@ cglobal pixelutils_sad_16x16, 4,4,0, src1, stride1, src2, stride2
;------------------------------------------------------------------------------- ;-------------------------------------------------------------------------------
INIT_XMM sse2 INIT_XMM sse2
cglobal pixelutils_sad_16x16, 4,4,5, src1, stride1, src2, stride2 cglobal pixelutils_sad_16x16, 4,4,5, src1, stride1, src2, stride2
pxor m4, m4 movu m4, [src1q]
%rep 8 movu m2, [src2q]
movu m0, [src1q]
movu m1, [src1q + stride1q] movu m1, [src1q + stride1q]
movu m3, [src2q + stride2q]
psadbw m4, m2
psadbw m1, m3
paddw m4, m1
%rep 7
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
movu m0, [src1q]
movu m2, [src2q] movu m2, [src2q]
movu m1, [src1q + stride1q]
movu m3, [src2q + stride2q] movu m3, [src2q + stride2q]
psadbw m0, m2 psadbw m0, m2
psadbw m1, m3 psadbw m1, m3
paddw m4, m0 paddw m4, m0
paddw m4, m1 paddw m4, m1
lea src1q, [src1q + 2*stride1q]
lea src2q, [src2q + 2*stride2q]
%endrep %endrep
movhlps m0, m4 movhlps m0, m4
paddw m4, m0 paddw m4, m0
......
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