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Specialize SSE2 filter

Browse Source 
BUG=177
TEST=unittest scale*
Review URL: https://webrtc-codereview.appspot.com/1069005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@550 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2013-01-23 02:05:12 +00:00
parent 8811289be7
commit 8c4e5e284c
4 changed files with 73 additions and 48 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 549
Version: 550
License: BSD
License File: LICENSE

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 549
#define LIBYUV_VERSION 550
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

22
source/row_win.cc
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@ -4642,14 +4642,15 @@ void ARGBInterpolateRow_SSSE3(uint8* dst_argb, const uint8* src_argb,
mov eax, [esp + 8 + 20] // source_y_fraction (0..255)
sub edi, esi
shr eax, 1
cmp eax, 0 // dispatch to specialized filters if applicable.
je xloop100
// Dispatch to specialized filters if applicable.
cmp eax, 0
je xloop100 // 0 / 128. Blend 100 / 0.
cmp eax, 32
je xloop75
je xloop75 // 32 / 128 is 0.25. Blend 75 / 25.
cmp eax, 64
je xloop50
je xloop50 // 64 / 128 is 0.50. Blend 50 / 50.
cmp eax, 96
je xloop25
je xloop25 // 96 / 128 is 0.75. Blend 25 / 75.
movd xmm0, eax // high fraction 0..127
neg eax
@ -4746,14 +4747,15 @@ void ARGBInterpolateRow_SSE2(uint8* dst_argb, const uint8* src_argb,
mov ecx, [esp + 8 + 16] // dst_width
mov eax, [esp + 8 + 20] // source_y_fraction (0..255)
sub edi, esi
cmp eax, 0 // dispatch to specialized filters if applicable.
je xloop100
// Dispatch to specialized filters if applicable.
cmp eax, 0
je xloop100 // 0 / 256. Blend 100 / 0.
cmp eax, 64
je xloop75
je xloop75 // 64 / 256 is 0.25. Blend 75 / 25.
cmp eax, 128
je xloop50
je xloop50 // 128 / 256 is 0.50. Blend 50 / 50.
cmp eax, 192
je xloop25
je xloop25 // 192 / 256 is 0.75. Blend 25 / 75.
movd xmm5, eax // xmm5 = y fraction
punpcklbw xmm5, xmm5

95
source/scale.cc
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@ -947,10 +947,15 @@ static void ScaleFilterRows_SSE2(uint8* dst_ptr, const uint8* src_ptr,
mov ecx, [esp + 8 + 16] // dst_width
mov eax, [esp + 8 + 20] // source_y_fraction (0..255)
sub edi, esi
// Dispatch to specialized filters if applicable.
cmp eax, 0
je xloop1
cmp eax, 128 // 50%?
je xloop2
je xloop100 // 0 / 256. Blend 100 / 0.
cmp eax, 64
je xloop75 // 64 / 256 is 0.25. Blend 75 / 25.
cmp eax, 128
je xloop50 // 128 / 256 is 0.50. Blend 50 / 50.
cmp eax, 192
je xloop25 // 192 / 256 is 0.75. Blend 25 / 75.
movd xmm5, eax // xmm5 = y fraction
punpcklbw xmm5, xmm5
@ -983,41 +988,58 @@ static void ScaleFilterRows_SSE2(uint8* dst_ptr, const uint8* src_ptr,
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop
jmp xloop99
punpckhbw xmm0, xmm0 // duplicate last pixel for filtering
pshufhw xmm0, xmm0, 0xff
punpckhqdq xmm0, xmm0
movdqa [esi + edi], xmm0
pop edi
pop esi
ret
// Blend 25 / 75.
align 16
xloop1:
xloop25:
movdqa xmm0, [esi]
movdqa xmm1, [esi + edx]
pavgb xmm0, xmm1
pavgb xmm0, xmm1
sub ecx, 16
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop25
jmp xloop99
// Blend 50 / 50.
align 16
xloop50:
movdqa xmm0, [esi]
movdqa xmm1, [esi + edx]
pavgb xmm0, xmm1
sub ecx, 16
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop50
jmp xloop99
// Blend 75 / 25.
align 16
xloop75:
movdqa xmm1, [esi]
movdqa xmm0, [esi + edx]
pavgb xmm0, xmm1
pavgb xmm0, xmm1
sub ecx, 16
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop75
jmp xloop99
// Blend 100 / 0 - Copy row unchanged.
align 16
xloop100:
movdqa xmm0, [esi]
sub ecx, 16
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop1
jg xloop100
punpckhbw xmm0, xmm0 // duplicate last pixel for filtering
pshufhw xmm0, xmm0, 0xff
punpckhqdq xmm0, xmm0
movdqa [esi + edi], xmm0
pop edi
pop esi
ret
align 16
xloop2:
movdqa xmm0, [esi]
pavgb xmm0, [esi + edx]
sub ecx, 16
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop2
punpckhbw xmm0, xmm0 // duplicate last pixel for filtering
// Extrude last pixel.
xloop99:
punpckhbw xmm0, xmm0
pshufhw xmm0, xmm0, 0xff
punpckhqdq xmm0, xmm0
movdqa [esi + edi], xmm0
@ -1043,14 +1065,15 @@ static void ScaleFilterRows_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
mov eax, [esp + 8 + 20] // source_y_fraction (0..255)
sub edi, esi
shr eax, 1
cmp eax, 0 // dispatch to specialized filters if applicable.
je xloop100
// Dispatch to specialized filters if applicable.
cmp eax, 0
je xloop100 // 0 / 128. Blend 100 / 0.
cmp eax, 32
je xloop75
je xloop75 // 32 / 128 is 0.25. Blend 75 / 25.
cmp eax, 64
je xloop50
je xloop50 // 64 / 128 is 0.50. Blend 50 / 50.
cmp eax, 96
je xloop25
je xloop25 // 96 / 128 is 0.75. Blend 25 / 75.
movd xmm0, eax // high fraction 1..127.
neg eax