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Fix aligned version of SSSE3 alpha blend and re-enable SSE2 alpha blend for performance evaluation on low end CPUs where pshufb is slow.

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BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/728009

git-svn-id: http://libyuv.googlecode.com/svn/trunk@322 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-08-15 18:57:18 +00:00
parent f877e71995
commit f3181b3cf9
4 changed files with 8 additions and 6 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: 321
Version: 322
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 321
#define LIBYUV_VERSION 322
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

4
source/row.h
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@ -80,6 +80,9 @@ extern "C" {
#define HAS_CUMULATIVESUMTOAVERAGE_SSE2
#define HAS_ARGBSHADE_SSE2
#define HAS_ARGBAFFINEROW_SSE2
// HAS_ARGBBLENDROW_SSE2 may be faster than SSSE3 version on some CPUs, so
// enable it here instead of LIBYUV_SSSE3_ONLY section.
#define HAS_ARGBBLENDROW_SSE2
#endif
// The following are Windows only:
@ -96,7 +99,6 @@ extern "C" {
!defined(LIBYUV_SSSE3_ONLY)
#define HAS_MIRRORROW_SSE2
#define HAS_ARGBATTENUATE_SSE2
#define HAS_ARGBBLENDROW_SSE2
#endif
// The following are available on Neon platforms

6
source/row_posix.cc
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@ -2548,16 +2548,16 @@ void ARGBBlendRow_SSSE3(const uint8* src_argb0, const uint8* src_argb1,
// 4 pixel loop.
".p2align 2 \n"
"40: \n"
"movdqu (%0),%%xmm3 \n"
"movdqa (%0),%%xmm3 \n"
"lea 0x10(%0),%0 \n"
"movdqa %%xmm3,%%xmm0 \n"
"pxor %%xmm4,%%xmm3 \n"
"movdqu (%1),%%xmm2 \n"
"movdqa (%1),%%xmm2 \n"
"pshufb %4,%%xmm3 \n"
"pand %%xmm6,%%xmm2 \n"
"paddw %%xmm7,%%xmm3 \n"
"pmullw %%xmm3,%%xmm2 \n"
"movdqu (%1),%%xmm1 \n"
"movdqa (%1),%%xmm1 \n"
"lea 0x10(%1),%1 \n"
"psrlw $0x8,%%xmm1 \n"
"por %%xmm4,%%xmm0 \n"