Make static constants const for Visual C.  Allows optimizer to collapse similar constants (SSE2 is subset of AVX2).  GCC has compiler bug with const attributes, but Visual C does not.
BUG=254
TEST=windows build still passes and is smaller
R=cdelaunay@google.com

Review URL: https://webrtc-codereview.appspot.com/2200007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@788 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=265
TESTED=untested
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2196009

git-svn-id: http://libyuv.googlecode.com/svn/trunk@787 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=265
TESTED=try bots
R=changjun.yang@intel.com

Review URL: https://webrtc-codereview.appspot.com/2191007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@786 16f28f9a-4ce2-e073-06de-1de4eb20be90

Remove alignment from ARGBToRGB24 and ARGBToRAW to allow fast code to be used all of the time.  Improves performance on Westmere and beyond, hurts performance for aligned buffers on older CPUs.
BUG=230
TESTED=try bot
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2197007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@785 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=267
TEST=try bots
R=ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2184008

git-svn-id: http://libyuv.googlecode.com/svn/trunk@784 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=267
TEST=Luma*
R=thorcarpenter@google.com

Review URL: https://webrtc-codereview.appspot.com/2202004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@783 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=265
TEST=*Poly*
R=changjun.yang@intel.com

Review URL: https://webrtc-codereview.appspot.com/2195004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@782 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=265
TESTED=libyuvTest.TestARGBPolynomial
R=jingning@google.com, ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2184005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@781 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=265
TEST=untested
R=thorcarpenter@google.com, yunqingwang@google.com

Review URL: https://webrtc-codereview.appspot.com/2166004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@780 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=260
TEST=ScaleDownByVertical2by3_Bilinear
R=jingning@google.com, thorcarpenter@google.com

Review URL: https://webrtc-codereview.appspot.com/2165004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@779 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=265
TEST=ARGBPolynomial
R=thorcarpenter@google.com

Review URL: https://webrtc-codereview.appspot.com/2159005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@778 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=264
TEST=ARGBInterpolate*
R=changjun.yang@intel.com

Review URL: https://webrtc-codereview.appspot.com/2160004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@777 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=263
TEST=Scale unittests still pass with same performance.
R=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2153004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@776 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=260
TEST=try serving with lemon.
R=wuwang@google.com

Review URL: https://webrtc-codereview.appspot.com/2128005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@775 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=260
TEST=unittests
R=wuwang@google.com

Review URL: https://webrtc-codereview.appspot.com/2128004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@774 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=260
TEST=unittests build/run
R=ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2123004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@773 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=260
TESTED=manual test with LIBYUV_HEIGHT=1440
R=wuwang@google.com

Review URL: https://webrtc-codereview.appspot.com/2116004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@772 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=none
R=dingkai@google.com

Review URL: https://webrtc-codereview.appspot.com/2115004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@771 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=260
TESTED=manually tested with LIBYUV_HEIGHT=270
R=dingkai@google.com, ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2113004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@770 16f28f9a-4ce2-e073-06de-1de4eb20be90

This CL also ports HAS_YUY2TOYROW_SSE2 and enables
HAS_BGRATOYROW_SSSE3 and many others.

TEST=libyuv_test,ncval,bots
BUG=253
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/2049005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@769 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TESTED=nacl build and dump
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2079004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@768 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TESTED=ncval.exe newlib/Release/nacltest_x86_64.nexe
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2066004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@767 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=libyuv_unittest,ncval,trybots
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/2054006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@766 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TESTED=libyuvTest.TestCopyPlane
R=wuwang@google.com

Review URL: https://webrtc-codereview.appspot.com/2060006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@765 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=libyuvtest,trybots
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/2037004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@764 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TESTED=validator
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2038004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@763 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=libyuv_test,try bots
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/2013005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@762 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TESTED=ncval passed
R=dingkai@google.com

Review URL: https://webrtc-codereview.appspot.com/2035004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@761 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=validator
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2034004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@760 16f28f9a-4ce2-e073-06de-1de4eb20be90

Fix bug in CumulativeSumToAverageRow
BUG=253
TEST=ncval,trybots
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/2004004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@759 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=validator
R=johannkoenig@google.com, ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2033004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@758 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=256
TEST=*Blur*
R=ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2027005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@757 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=nacl validator
R=nfullagar@google.com, ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/2024004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@756 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TESTED=VALID
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/2009005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@755 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=ncvar
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/1995004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@754 16f28f9a-4ce2-e073-06de-1de4eb20be90

Make unittests to 1280 pixels for simple planar tests, to get more realistic performance metrics than 256 pixels.
BUG=253
TEST=planar tests
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/1994004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@753 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=none
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/1998004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@752 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=ncval
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/1991004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@751 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=validator
R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/1990004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@750 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=253
TEST=none
R=nfullagar@google.com

Review URL: https://webrtc-codereview.appspot.com/1987004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@749 16f28f9a-4ce2-e073-06de-1de4eb20be90