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3 Commits

Author SHA1 Message Date
fbarchard@google.com
e6ca9cc2a2 Scale down by 2 AVX2 port. Processes twice as many pixels as SSE2 and takes advantage of 3 argument instructions to reduce register usage and number of instructions. 
BUG=314
TESTED=libyuvTest.ScaleDownBy2_Box
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/42959004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1347 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-26 23:21:08 +00:00
fbarchard@google.com
d41fbf40dd Handle scale down by factor of 2 efficiently by calling SIMD for multiple of 16 destination pixels, and C for remainder. 
BUG=314
TESTED=out\release\libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=*.ScaleDownBy2*
R=bcornell@google.com

Review URL: https://webrtc-codereview.appspot.com/48689004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1344 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-24 23:25:30 +00:00
yang.zhang@arm.com
d6d7de5742 Add ScaleFilterCols_NEON for ARM32/64 
ARM32/64 NEON versions of ScaleFilterCols_NEON are implemented.

BUG=319
TESTED=libyuvTest.* on ARM32/64 with Android
R=fbarchard@google.com

Change-Id: I5b0838769ffb0182155d7cd6bcc520eb81eb5c4e

Review URL: https://webrtc-codereview.appspot.com/41349004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1340 16f28f9a-4ce2-e073-06de-1de4eb20be90
 2015-03-19 03:55:05 +00:00