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ARGBScale to half size adjust address for filtering.

Browse Source 
BUG=238
TEST=libyuvTest.ARGBScaleDownBy4_Bilinear
R=dingkai@google.com

Review URL: https://webrtc-codereview.appspot.com/1589004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@711 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2013-05-31 00:56:33 +00:00
parent b911428afd
commit 314dbf71c3
3 changed files with 7 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: 710
Version: 711
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 710
#define LIBYUV_VERSION 711
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

6
source/scale_argb.cc
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@ -744,7 +744,11 @@ static void ScaleARGBDown2(int /* src_width */, int /* src_height */,
assert(dx == 65536 * 2); // Test scale factor of 2.
assert((dy & 0x1ffff) == 0); // Test vertical scale is multiple of 2.
// Advance to odd row / even column.
src_argb += (y >> 16) * src_stride + ((x >> 16) - 1) * 4;
if (filtering) {
src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
} else {
src_argb += (y >> 16) * src_stride + ((x >> 16) - 1) * 4;
}
int row_stride = src_stride * (dy >> 16);
void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
uint8* dst_argb, int dst_width) =