coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2026-02-07 02:09:50 +08:00
Code Issues Packages Projects Releases Wiki Activity

ARGBAttenuate_AVX2 ported to GCC.

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

Review URL: https://webrtc-codereview.appspot.com/29049004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1162 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2014-11-12 18:38:06 +00:00
parent ec1f854f86
commit f8c334473b
4 changed files with 49 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
README.chromium
View File

@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1161
Version: 1162
License: BSD
License File: LICENSE

2
include/libyuv/row.h
View File

@ -204,6 +204,7 @@ extern "C" {
#define HAS_ARGBADDROW_AVX2
#define HAS_ARGBSUBTRACTROW_AVX2
#define HAS_ARGBMULTIPLYROW_AVX2
#define HAS_ARGBATTENUATEROW_AVX2
#endif
// The following are require VS2012.
@ -219,7 +220,6 @@ extern "C" {
#define HAS_MIRRORROW_AVX2
// Effects:
#define HAS_ARGBATTENUATEROW_AVX2
#define HAS_ARGBMIRRORROW_AVX2
#define HAS_ARGBUNATTENUATEROW_AVX2
#endif // defined(VISUALC_HAS_AVX2)

2
include/libyuv/version.h
View File

@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1161
#define LIBYUV_VERSION 1162
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

46
source/row_posix.cc
View File

@ -3549,6 +3549,52 @@ void ARGBAttenuateRow_SSSE3(const uint8* src_argb, uint8* dst_argb, int width) {
}
#endif // HAS_ARGBATTENUATEROW_SSSE3
#ifdef HAS_ARGBATTENUATEROW_AVX2
// Shuffle table duplicating alpha.
static const ulvec8 kShuffleAlpha_AVX2 = {
6u, 7u, 6u, 7u, 6u, 7u, 128u, 128u,
14u, 15u, 14u, 15u, 14u, 15u, 128u, 128u
};
// Attenuate 8 pixels at a time.
void ARGBAttenuateRow_AVX2(const uint8* src_argb, uint8* dst_argb, int width) {
asm volatile (
"vbroadcastf128 %3,%%ymm4 \n"
"vpcmpeqb %%ymm5,%%ymm5,%%ymm5 \n"
"vpslld $0x18,%%ymm5,%%ymm5 \n"
"sub %0,%1 \n"
// 8 pixel loop.
LABELALIGN
"1: \n"
"vmovdqu " MEMACCESS(0) ",%%ymm6 \n"
"vpunpcklbw %%ymm6,%%ymm6,%%ymm0 \n"
"vpunpckhbw %%ymm6,%%ymm6,%%ymm1 \n"
"vpshufb %%ymm4,%%ymm0,%%ymm2 \n"
"vpshufb %%ymm4,%%ymm1,%%ymm3 \n"
"vpmulhuw %%ymm2,%%ymm0,%%ymm0 \n"
"vpmulhuw %%ymm3,%%ymm1,%%ymm1 \n"
"vpand %%ymm5,%%ymm6,%%ymm6 \n"
"vpsrlw $0x8,%%ymm0,%%ymm0 \n"
"vpsrlw $0x8,%%ymm1,%%ymm1 \n"
"vpackuswb %%ymm1,%%ymm0,%%ymm0 \n"
"vpor %%ymm6,%%ymm0,%%ymm0 \n"
"sub $0x8,%2 \n"
MEMOPMEM(vmovdqu,ymm0,0x00,0,1,1) // vmovdqu %%ymm0,(%0,%1)
"lea " MEMLEA(0x20,0) ",%0 \n"
"jg 1b \n"
"vzeroupper \n"
: "+r"(src_argb), // %0
"+r"(dst_argb), // %1
"+r"(width) // %2
: "m"(kShuffleAlpha_AVX2) // %3
: "memory", "cc"
#if defined(__SSE2__)
, "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
#endif
);
}
#endif // HAS_ARGBATTENUATEROW_AVX2
#ifdef HAS_ARGBUNATTENUATEROW_SSE2
// Unattenuate 4 pixels at a time.
// aligned to 16 bytes