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SSE2 version of 4444 to 8888

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BUG=none
TEST=none
Review URL: http://webrtc-codereview.appspot.com/344005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@129 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-01-11 20:22:35 +00:00
parent a7d977ceae
commit 17272be539
2 changed files with 35 additions and 1 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv Name: libyuv
URL: http://code.google.com/p/libyuv/ URL: http://code.google.com/p/libyuv/
Version: 128 Version: 129
License: BSD License: BSD
License File: LICENSE License File: LICENSE

34
source/row_win.cc
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@ -229,6 +229,40 @@ __asm {
} }
} }
__declspec(naked)
void ARGB4444ToARGBRow_SSE2(const uint8* src_argb4444, uint8* dst_argb,
int pix) {
__asm {
mov eax, 0x0f0f0f0f // generate mask 0x0f0f0f0f
movd xmm4, eax
pshufd xmm4, xmm4, 0
movdqa xmm5, xmm4 // 0xf0f0f0f0 for high nibbles
pslld xmm5, 4
mov eax, [esp + 4] // src_argb4444
mov edx, [esp + 8] // dst_argb
mov ecx, [esp + 12] // pix
convertloop:
movq xmm0, qword ptr [eax] // fetch 4 pixels of bgra4444
lea eax, [eax + 8]
movdqa xmm2, xmm0
pand xmm0, xmm4 // mask low nibbles
pand xmm2, xmm5 // mask high nibbles
movdqa xmm1, xmm0
movdqa xmm3, xmm2
psllw xmm1, 4
psrlw xmm3, 4
por xmm0, xmm1
por xmm2, xmm3
punpcklbw xmm0, xmm2
movdqa [edx], xmm0 // store 4 pixels of ARGB
lea edx, [edx + 16]
sub ecx, 4
ja convertloop
ret
}
}
// Convert 16 ARGB pixels (64 bytes) to 16 Y values // Convert 16 ARGB pixels (64 bytes) to 16 Y values
__declspec(naked) __declspec(naked)
void ARGBToYRow_SSSE3(const uint8* src_argb, uint8* dst_y, int pix) { void ARGBToYRow_SSSE3(const uint8* src_argb, uint8* dst_y, int pix) {