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vp9lpf/x86: save one register in SIGN_ADD/SUB.

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Signed-off-by: Anton Khirnov <anton@khirnov.net>
pull/244/merge
Ronald S. Bultje 10 years ago committed by Anton Khirnov
parent c6375a83d1
commit 7c62891efe
1 changed files with 14 additions and 14 deletions
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  1. 28
      libavcodec/x86/vp9lpf.asm

28
libavcodec/x86/vp9lpf.asm
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@ -142,17 +142,17 @@ SECTION .text
%endmacro
; clip_u8(u8 + i8)
%macro SIGN_ADD 5 ; dst, u8, i8, tmp1, tmp2
EXTRACT_POS_NEG %3, %4, %5
psubusb %1, %2, %4 ; sub the negatives
paddusb %1, %5 ; add the positives
%macro SIGN_ADD 4 ; dst, u8, i8, tmp1
EXTRACT_POS_NEG %3, %4, %1
paddusb %1, %2 ; add the positives
psubusb %1, %4 ; sub the negatives
%endmacro
; clip_u8(u8 - i8)
%macro SIGN_SUB 5 ; dst, u8, i8, tmp1, tmp2
EXTRACT_POS_NEG %3, %4, %5
psubusb %1, %2, %5 ; sub the positives
paddusb %1, %4 ; add the negatives
%macro SIGN_SUB 4 ; dst, u8, i8, tmp1
EXTRACT_POS_NEG %3, %1, %4
paddusb %1, %2 ; add the negatives
psubusb %1, %4 ; sub the positives
%endmacro
%macro FILTER6_INIT 4 ; %1=dst %2=h/l %3=cache, %4=stack_off
@ -578,8 +578,8 @@ cglobal vp9_loop_filter_%1_%2_16, 2, 6, 16, %3 + %4, dst, stride, mstride, dst2,
paddsb m4, [pb_3] ; m4: f2 = clip(f + 3, 127)
mova m14, [pb_10] ; will be reused in filter4()
SRSHIFT3B_2X m6, m4, m14, m7 ; f1 and f2 sign byte shift by 3
SIGN_SUB m7, m12, m6, m5, m9 ; m7 = q0 - f1
SIGN_ADD m8, m11, m4, m5, m9 ; m8 = p0 + f2
SIGN_SUB m7, m12, m6, m5 ; m7 = q0 - f1
SIGN_ADD m8, m11, m4, m5 ; m8 = p0 + f2
%if %2 != 44
pandn m6, m2, m3 ; ~mask(in) & mask(fm)
pand m6, m0 ; (~mask(in) & mask(fm)) & mask(hev)
@ -607,18 +607,18 @@ cglobal vp9_loop_filter_%1_%2_16, 2, 6, 16, %3 + %4, dst, stride, mstride, dst2,
%define q0tmp m2
pandn m0, m3
%endif
SIGN_SUB q0tmp, m12, m6, m4, m14 ; q0 - f1
SIGN_SUB q0tmp, m12, m6, m4 ; q0 - f1
MASK_APPLY q0tmp, m7, m0, m5 ; filter4(q0) & mask
mova [Q0], q0tmp
SIGN_ADD p0tmp, m11, m15, m4, m14 ; p0 + f2
SIGN_ADD p0tmp, m11, m15, m4 ; p0 + f2
MASK_APPLY p0tmp, m8, m0, m5 ; filter4(p0) & mask
mova [P0], p0tmp
paddb m6, [pb_80] ;
pxor m8, m8 ; f=(f1+1)>>1
pavgb m6, m8 ;
psubb m6, [pb_40] ;
SIGN_ADD m7, m10, m6, m8, m9 ; p1 + f
SIGN_SUB m4, m13, m6, m8, m9 ; q1 - f
SIGN_ADD m7, m10, m6, m8 ; p1 + f
SIGN_SUB m4, m13, m6, m8 ; q1 - f
MASK_APPLY m7, m10, m0, m14 ; m7 = filter4(p1)
MASK_APPLY m4, m13, m0, m14 ; m4 = filter4(q1)
mova [P1], m7

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