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ARGBSubtract_AVX2 ported to GCC.

Browse Source 
BUG=269
TESTED=try bots
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/27129004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1159 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2014-11-11 19:12:38 +00:00
parent 9e9e26d60a
commit 0387df5186
4 changed files with 33 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: 1158
Version: 1159
License: BSD
License File: LICENSE

2
include/libyuv/row.h
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@ -202,6 +202,7 @@ extern "C" {
// Effects:
#define HAS_ARGBADDROW_AVX2
#define HAS_ARGBSUBTRACTROW_AVX2
#endif
// The following are require VS2012.
@ -220,7 +221,6 @@ extern "C" {
#define HAS_ARGBATTENUATEROW_AVX2
#define HAS_ARGBMIRRORROW_AVX2
#define HAS_ARGBMULTIPLYROW_AVX2
#define HAS_ARGBSUBTRACTROW_AVX2
#define HAS_ARGBUNATTENUATEROW_AVX2
#endif // defined(VISUALC_HAS_AVX2)

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 1158
#define LIBYUV_VERSION 1159
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

30
source/row_posix.cc
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@ -4015,6 +4015,36 @@ void ARGBSubtractRow_SSE2(const uint8* src_argb0, const uint8* src_argb1,
}
#endif // HAS_ARGBSUBTRACTROW_SSE2
#ifdef HAS_ARGBSUBTRACTROW_AVX2
// Subtract 2 rows of ARGB pixels, 8 pixels at a time.
void ARGBSubtractRow_AVX2(const uint8* src_argb0, const uint8* src_argb1,
uint8* dst_argb, int width) {
asm volatile (
// 4 pixel loop.
LABELALIGN
"1: \n"
"vmovdqu " MEMACCESS(0) ",%%ymm0 \n"
"lea " MEMLEA(0x20,0) ",%0 \n"
"vpsubusb " MEMACCESS(1) ",%%ymm0,%%ymm0 \n"
"lea " MEMLEA(0x20,1) ",%1 \n"
"vmovdqu %%ymm0," MEMACCESS(2) " \n"
"lea " MEMLEA(0x20,2) ",%2 \n"
"sub $0x8,%3 \n"
"jg 1b \n"
"vzeroupper \n"
: "+r"(src_argb0), // %0
"+r"(src_argb1), // %1
"+r"(dst_argb), // %2
"+r"(width) // %3
:
: "memory", "cc"
#if defined(__SSE2__)
, "xmm0"
#endif
);
}
#endif // HAS_ARGBSUBTRACTROW_AVX2
#ifdef HAS_SOBELXROW_SSE2
// SobelX as a matrix is
// -1 0 1