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avcodec/x86/vp8dsp: Directly use negated stride

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There is a register available. No change in benchmarks here.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-11-23 12:53:12 +01:00
parent 8fb6b0c733
commit e59ed3470d
1 changed files with 21 additions and 23 deletions
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44
libavcodec/x86/vp8dsp.asm
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@@ -219,11 +219,11 @@ cglobal put_vp8_epel%1_v4, 7, 7, 8, dst, dststride, src, srcstride, height, picr
mova m7, [pw_256] mova m7, [pw_256]
; read 3 lines ; read 3 lines
sub srcq, srcstrideq mov picregq, srcstrideq
movh m0, [srcq] neg picregq
movh m1, [srcq+ srcstrideq] movh m0, [srcq+picregq]
movh m2, [srcq+2*srcstrideq] movh m1, [srcq]
add srcq, srcstrideq movh m2, [srcq+srcstrideq]
.nextrow: .nextrow:
movh m3, [srcq+2*srcstrideq] ; read new row movh m3, [srcq+2*srcstrideq] ; read new row
@@ -255,18 +255,17 @@ cglobal put_vp8_epel%1_v6, 7, 7, 8, dst, dststride, src, srcstride, height, picr
lea myq, [sixtap_filter_hb+myq*8] lea myq, [sixtap_filter_hb+myq*8]
; read 5 lines ; read 5 lines
sub srcq, srcstrideq mov picregq, srcstrideq
sub srcq, srcstrideq neg picregq
movh m0, [srcq] movh m0, [srcq+2*picregq]
movh m1, [srcq+srcstrideq] movh m1, [srcq+picregq]
movh m2, [srcq+srcstrideq*2] movh m2, [srcq]
movh m3, [srcq+srcstrideq]
movh m4, [srcq+2*srcstrideq]
lea srcq, [srcq+srcstrideq*2] lea srcq, [srcq+srcstrideq*2]
add srcq, srcstrideq
movh m3, [srcq]
movh m4, [srcq+srcstrideq]
.nextrow: .nextrow:
movh m5, [srcq+2*srcstrideq] ; read new row movh m5, [srcq+srcstrideq] ; read new row
mova m6, m0 mova m6, m0
punpcklbw m6, m5 punpcklbw m6, m5
mova m0, m1 mova m0, m1
@@ -475,15 +474,14 @@ cglobal put_vp8_epel8_v6, 7, 7, 8, dst, dststride, src, srcstride, height, picre
pxor m7, m7 pxor m7, m7
; read 5 lines ; read 5 lines
sub srcq, srcstrideq mov picregq, srcstrideq
sub srcq, srcstrideq neg picregq
movh m0, [srcq] movh m0, [srcq+2*picregq]
movh m1, [srcq+srcstrideq] movh m1, [srcq+picregq]
movh m2, [srcq+srcstrideq*2] movh m2, [srcq]
movh m3, [srcq+srcstrideq]
movh m4, [srcq+2*srcstrideq]
lea srcq, [srcq+srcstrideq*2] lea srcq, [srcq+srcstrideq*2]
add srcq, srcstrideq
movh m3, [srcq]
movh m4, [srcq+srcstrideq]
punpcklbw m0, m7 punpcklbw m0, m7
punpcklbw m1, m7 punpcklbw m1, m7
punpcklbw m2, m7 punpcklbw m2, m7
@@ -499,7 +497,7 @@ cglobal put_vp8_epel8_v6, 7, 7, 8, dst, dststride, src, srcstride, height, picre
paddsw m6, m5 paddsw m6, m5
; then calculate positive taps ; then calculate positive taps
movh m5, [srcq+2*srcstrideq] ; read new row movh m5, [srcq+srcstrideq] ; read new row
punpcklbw m5, m7 punpcklbw m5, m7
pmullw m0, [myq+0] pmullw m0, [myq+0]
paddsw m6, m0 paddsw m6, m0