Better choice of instruction filter mask comparision.
Use pmaxub instead of a combination of psubusb/por to determine if any comparisons go over the limit. Change-Id: I3f0bd7d2aabe5fee9ba6620508e2b60605abcb82
This commit is contained in:
Fritz Koenig
Родитель
746439ef6c
Коммит
8eae7fe7e8
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@ -11,6 +11,8 @@
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%include "vpx_ports/x86_abi_support.asm"
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; Use of pmaxub instead of psubusb to compute filter mask was seen
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; in ffvp8
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%macro LFH_FILTER_MASK 1
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%if %1
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@ -33,8 +35,6 @@
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psubusb xmm2, xmm6 ; q3-=q2
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por xmm1, xmm2 ; abs(q3-q2)
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psubusb xmm1, xmm7
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%if %1
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movdqa xmm4, [rsi+rax] ; q1
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%else
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@ -49,9 +49,7 @@
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psubusb xmm4, xmm6 ; q1-=q2
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psubusb xmm6, xmm3 ; q2-=q1
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por xmm4, xmm6 ; abs(q2-q1)
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psubusb xmm4, xmm7
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por xmm1, xmm4
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pmaxub xmm1, xmm4
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%if %1
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movdqa xmm4, [rsi] ; q0
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@ -67,9 +65,7 @@
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psubusb xmm3, xmm0 ; q1-=q0
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por xmm4, xmm3 ; abs(q0-q1)
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movdqa t0, xmm4 ; save to t0
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psubusb xmm4, xmm7
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por xmm1, xmm4
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pmaxub xmm1, xmm4
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%if %1
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neg rax ; negate pitch to deal with above border
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@ -95,9 +91,7 @@
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psubusb xmm4, xmm2 ; p2-=p3
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psubusb xmm2, xmm5 ; p3-=p2
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por xmm4, xmm2 ; abs(p3 - p2)
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psubusb xmm4, xmm7
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por xmm1, xmm4
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pmaxub xmm1, xmm4
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%if %1
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movdqa xmm4, [rsi+2*rax] ; p1
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@ -113,9 +107,8 @@
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psubusb xmm4, xmm5 ; p1-=p2
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psubusb xmm5, xmm3 ; p2-=p1
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por xmm4, xmm5 ; abs(p2 - p1)
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psubusb xmm4, xmm7
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pmaxub xmm1, xmm4
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por xmm1, xmm4
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movdqa xmm2, xmm3 ; p1
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%if %1
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@ -133,8 +126,8 @@
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por xmm4, xmm3 ; abs(p1 - p0)
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movdqa t1, xmm4 ; save to t1
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psubusb xmm4, xmm7
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por xmm1, xmm4
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pmaxub xmm1, xmm4
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psubusb xmm1, xmm7
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%if %1
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movdqa xmm3, [rdi] ; q1
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@ -872,19 +865,18 @@ sym(vp8_mbloop_filter_horizontal_edge_uv_sse2):
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psubusb xmm0, xmm7 ; q2-q3
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psubusb xmm7, xmm6 ; q3-q2
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por xmm7, xmm0 ; abs (q3-q2)
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movdqa xmm4, xmm5 ; q1
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por xmm7, xmm0 ; abs (q3-q2)
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psubusb xmm4, xmm6 ; q1-q2
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psubusb xmm6, xmm5 ; q2-q1
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por xmm6, xmm4 ; abs (q2-q1)
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movdqa xmm0, xmm1
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psubusb xmm6, xmm5 ; q2-q1
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por xmm6, xmm4 ; abs (q2-q1)
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psubusb xmm0, xmm2 ; p2 - p3;
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psubusb xmm2, xmm1 ; p3 - p2;
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psubusb xmm2, xmm1 ; p3 - p2;
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por xmm0, xmm2 ; abs(p2-p3)
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%if %1
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movdqa xmm2, [rdx] ; p1
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@ -892,39 +884,28 @@ sym(vp8_mbloop_filter_horizontal_edge_uv_sse2):
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movdqa xmm2, [rdx+32] ; p1
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%endif
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movdqa xmm5, xmm2 ; p1
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pmaxub xmm0, xmm7
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psubusb xmm5, xmm1 ; p1-p2
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psubusb xmm1, xmm2 ; p2-p1
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por xmm1, xmm5 ; abs(p2-p1)
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mov rdx, arg(3) ; limit
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movdqa xmm4, [rdx] ; limit
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psubusb xmm7, xmm4
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psubusb xmm0, xmm4 ; abs(p3-p2) > limit
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psubusb xmm1, xmm4 ; abs(p2-p1) > limit
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psubusb xmm6, xmm4 ; abs(q2-q1) > limit
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por xmm7, xmm6 ; or
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por xmm0, xmm1
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por xmm0, xmm7 ; abs(q3-q2) > limit || abs(p3-p2) > limit ||abs(p2-p1) > limit || abs(q2-q1) > limit
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movdqa xmm1, xmm2 ; p1
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movdqa xmm7, xmm3 ; p0
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psubusb xmm7, xmm2 ; p0-p1
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por xmm1, xmm5 ; abs(p2-p1)
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pmaxub xmm0, xmm6
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pmaxub xmm0, xmm1
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movdqa xmm1, xmm2 ; p1
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psubusb xmm2, xmm3 ; p1-p0
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por xmm2, xmm7 ; abs(p1-p0)
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movdqa t0, xmm2 ; save abs(p1-p0)
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lea rdx, srct
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psubusb xmm2, xmm4 ; abs(p1-p0)>limit
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por xmm0, xmm2 ; mask
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pmaxub xmm0, xmm2
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%if %1
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movdqa xmm5, [rdx+32] ; q0
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movdqa xmm7, [rdx+48] ; q1
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@ -940,9 +921,12 @@ sym(vp8_mbloop_filter_horizontal_edge_uv_sse2):
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por xmm7, xmm5 ; abs(q1-q0)
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movdqa t1, xmm7 ; save abs(q1-q0)
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psubusb xmm7, xmm4 ; abs(q1-q0)> limit
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por xmm0, xmm7 ; mask
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mov rdx, arg(3) ; limit
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movdqa xmm4, [rdx] ; limit
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pmaxub xmm0, xmm7
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psubusb xmm0, xmm4
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movdqa xmm5, xmm2 ; q1
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psubusb xmm5, xmm1 ; q1-=p1
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