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Alpha blend test alignment of source pointer and use movdqa aligned fetches.

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BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/714010

git-svn-id: http://libyuv.googlecode.com/svn/trunk@321 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-08-15 00:51:24 +00:00
parent e3cc76943e
commit f877e71995
4 changed files with 65 additions and 3 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: 320
Version: 321
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 320
#define LIBYUV_VERSION 321
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

31
source/row_posix.cc
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@ -2540,9 +2540,40 @@ void ARGBBlendRow_SSSE3(const uint8* src_argb0, const uint8* src_argb1,
"19: \n"
"add $1-4,%3 \n"
"jl 49f \n"
"test $0xf,%0 \n"
"jne 41f \n"
"test $0xf,%1 \n"
"jne 41f \n"
// 4 pixel loop.
".p2align 2 \n"
"40: \n"
"movdqu (%0),%%xmm3 \n"
"lea 0x10(%0),%0 \n"
"movdqa %%xmm3,%%xmm0 \n"
"pxor %%xmm4,%%xmm3 \n"
"movdqu (%1),%%xmm2 \n"
"pshufb %4,%%xmm3 \n"
"pand %%xmm6,%%xmm2 \n"
"paddw %%xmm7,%%xmm3 \n"
"pmullw %%xmm3,%%xmm2 \n"
"movdqu (%1),%%xmm1 \n"
"lea 0x10(%1),%1 \n"
"psrlw $0x8,%%xmm1 \n"
"por %%xmm4,%%xmm0 \n"
"pmullw %%xmm3,%%xmm1 \n"
"psrlw $0x8,%%xmm2 \n"
"paddusb %%xmm2,%%xmm0 \n"
"pand %%xmm5,%%xmm1 \n"
"paddusb %%xmm1,%%xmm0 \n"
"sub $0x4,%3 \n"
"movdqa %%xmm0,(%2) \n"
"lea 0x10(%2),%2 \n"
"jge 40b \n"
"jmp 49f \n"
// 4 pixel unaligned loop.
".p2align 2 \n"
"41: \n"
"movdqu (%0),%%xmm3 \n"
"lea 0x10(%0),%0 \n"

33
source/row_win.cc
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@ -2636,8 +2636,39 @@ void ARGBBlendRow_SSSE3(const uint8* src_argb0, const uint8* src_argb1,
add ecx, 1 - 4
jl convertloop4b
test eax, 15 // unaligned?
jne convertuloop4
test esi, 15 // unaligned?
jne convertuloop4
// 4 pixel loop.
convertloop4:
movdqa xmm3, [eax] // src argb
lea eax, [eax + 16]
movdqa xmm0, xmm3 // src argb
pxor xmm3, xmm4 // ~alpha
movdqa xmm2, [esi] // _r_b
pshufb xmm3, kShuffleAlpha // alpha
pand xmm2, xmm6 // _r_b
paddw xmm3, xmm7 // 256 - alpha
pmullw xmm2, xmm3 // _r_b * alpha
movdqa xmm1, [esi] // _a_g
lea esi, [esi + 16]
psrlw xmm1, 8 // _a_g
por xmm0, xmm4 // set alpha to 255
pmullw xmm1, xmm3 // _a_g * alpha
psrlw xmm2, 8 // _r_b convert to 8 bits again
paddusb xmm0, xmm2 // + src argb
pand xmm1, xmm5 // a_g_ convert to 8 bits again
paddusb xmm0, xmm1 // + src argb
sub ecx, 4
movdqa [edx], xmm0
lea edx, [edx + 16]
jge convertloop4
jmp convertloop4b
// 4 pixel unaligned loop.
convertuloop4:
movdqu xmm3, [eax] // src argb
lea eax, [eax + 16]
movdqa xmm0, xmm3 // src argb
@ -2659,7 +2690,7 @@ void ARGBBlendRow_SSSE3(const uint8* src_argb0, const uint8* src_argb1,
sub ecx, 4
movdqa [edx], xmm0
lea edx, [edx + 16]
jge convertloop4
jge convertuloop4
convertloop4b:
add ecx, 4 - 1