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fix avx2 box filter bug for yuv down sampling.

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offset to second group of pixels was off by 16.
should have been 32, not 16.
requires avx2 hardware and wide image for test.

R=harryjin@google.com
TBR=harryjin@google.com
BUG=libyuv:492,libyuv:501

Review URL: https://codereview.chromium.org/1395603002 .
This commit is contained in:
Frank Barchard 2015-10-07 11:02:33 -07:00
parent 013080f2d2
commit 3e38762d6b
3 changed files with 4 additions and 4 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: 1502
Version: 1503
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 1502
#define LIBYUV_VERSION 1503
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

4
source/scale_gcc.cc
View File

@ -619,9 +619,9 @@ void ScaleAddRow_AVX2(const uint8* src_ptr, uint16* dst_ptr, int src_width) {
"vpunpcklbw %%ymm5,%%ymm3,%%ymm2 \n"
"vpunpckhbw %%ymm5,%%ymm3,%%ymm3 \n"
"vpaddusw " MEMACCESS(1) ",%%ymm2,%%ymm0 \n"
"vpaddusw " MEMACCESS2(0x10,1) ",%%ymm3,%%ymm1 \n"
"vpaddusw " MEMACCESS2(0x20,1) ",%%ymm3,%%ymm1 \n"
"vmovdqu %%ymm0," MEMACCESS(1) " \n"
"vmovdqu %%ymm1," MEMACCESS2(0x10,1) " \n"
"vmovdqu %%ymm1," MEMACCESS2(0x20,1) " \n"
"lea " MEMLEA(0x40,1) ",%1 \n"
"sub $0x20,%2 \n"
"jg 1b \n"