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

Add the nacl macros to ARM functions. If not, a bunch of code is failing
to validate.

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

Change-Id: I7a36434f18e0de8b8f8a9fe01167bfe50cff8962

Review URL: https://webrtc-codereview.appspot.com/47739004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1343 16f28f9a-4ce2-e073-06de-1de4eb20be90

Enable assembly for clangcl build on Windows.  Previously assembly was disabled so clangcl would work, but only with C code.  As clangcl mimics both Visual C and GCC, ifdefs need to pick one or the other or often you'll end up with both.  In this CL we disable most Visual C code and use the GCC versions which allow assembly for both 32 and 64 bit intel.
BUG=412
TESTED=clang=1 build on windows
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/51389004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1341 16f28f9a-4ce2-e073-06de-1de4eb20be90

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

copy width to int64 to pass to assembly to avoid warning on ios 64 bit for implicit: value size does not match register size specified by the constraint and modif
BUG=413
TESTED=local ios 64 bit build
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/45749004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1338 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=I422ToRGB24 unittest
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/46619004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1337 16f28f9a-4ce2-e073-06de-1de4eb20be90

ARM32/64 NEON versions of ScaleARGBRowDown2Linear_NEON are implemented.

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

Change-Id: Ife602c81b51aa36e0d56b9d628f278a24eed96f6

Review URL: https://webrtc-codereview.appspot.com/44689004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1336 16f28f9a-4ce2-e073-06de-1de4eb20be90

ARM32/64 NEON versions of ARGBToRGB565DitherRow_NEON are implemented.

BUG=407
TESTED=libyuvTest.* on ARM32/64 with Android
R=fbarchard@google.com

Change-Id: Ia689170fb39db964392e5e1113801592ab0628bf

Review URL: https://webrtc-codereview.appspot.com/49409004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1335 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=414
TESTED=try bots
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/43809004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1334 16f28f9a-4ce2-e073-06de-1de4eb20be90

rename I400 to J400 and I400 reference to I400.  J400 is a simple replication of values to convert to RGB, which is what the old I400 was.  I400 reference is the Y part of the YUV formula, so renaming that to I400.
BUG=none
TESTED=libyuvTest (5925 ms total)
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/50369005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1333 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=local windows build
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/47619004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1332 16f28f9a-4ce2-e073-06de-1de4eb20be90

clangcl build fix for __cpuid in psnr util. Since clangcl provides the intrinsic thru its Visual C emulation, don't duplicately define the function with an inline version, which is normally needed for gcc/clang.
BUG=412
TESTED=set GYP_DEFINES=clang=1 & gyp_libyuv -fninja libyuv_test.gyp
R=brucedawson@google.com

Review URL: https://webrtc-codereview.appspot.com/40339004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1331 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=411
TESTED=libyuvTest.TestYToARGB
R=bcornell@google.com

Review URL: https://webrtc-codereview.appspot.com/44709004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1330 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=414
TESTED=libyuvTest.TestFullYUVJ
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/41309004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1329 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=414
TESTED=J422ToARGB unittest
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/42799004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1328 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=414
TESTED=TestFullYUVJ
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/44679004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1327 16f28f9a-4ce2-e073-06de-1de4eb20be90

ARM32/64 NEON versions of ScaleAddRows_NEON are implemented.

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

Change-Id: I45b88c2b5f576042ba5b3d8d6f8851257fdb7218

Review URL: https://webrtc-codereview.appspot.com/46379004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1326 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=TestRoundToByte
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/41299004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1325 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=412
TESTED=clang=1 for build on windows
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/45679004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1324 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=libyuv unittest added to benchmark and confirm behavior of cast
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/44649004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1323 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=403
TESTED=libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=*I400ToARGB*
R=brucedawson@google.com

Review URL: https://webrtc-codereview.appspot.com/46569004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1322 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=403
TESTED=I411ToARGB unittest
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/42689004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1321 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=410
TESTED=set LIBYUV_WIDTH=65536 out\release\libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=libyuvTest.ScaleTo320x240_None
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/42319004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1320 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=out\release\libyuv_unittest.exe --gtest_catch_exceptions=0 --gtest_filter=*TestFullYUV
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/47499005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1319 16f28f9a-4ce2-e073-06de-1de4eb20be90

Add dependencies and move the neon target to only be
specified for ARM builds so a standalone GN build can be
performed.

TESTED=Ran:
gn gen out/Release --args=is_debug=false
ninja -C out/Release

gn gen out/Debug --args=is_debug=true
ninja -C out/Debug

gn gen out/Debug --args="is_debug=true os=\"android\" "cpu_arch=\"arm\""
ninja -C out/Debug

gn gen out/Release --args="is_debug=false os=\"android\" "cpu_arch=\"arm\""
ninja -C out/Release

R=fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/42289004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1317 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=libyuvTest.TestFullYUV

Review URL: https://webrtc-codereview.appspot.com/47479004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1316 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=407
TESTED=untested
R=brucedawson@google.com, tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/48429004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1315 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=403
TESTED=I444ToARGB unittests
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/45589004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1314 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=libyuvTest.TestFullYUV

Review URL: https://webrtc-codereview.appspot.com/45539004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1313 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=409
TESTED=python build\gyp_chromium -fninja -G msvs_version=2010 --depth=. libyuv_test.gyp
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/44569004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1312 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=409
TESTED=try bots
R=harryjin@google.com, johannkoenig@google.com

Review URL: https://webrtc-codereview.appspot.com/43629004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1311 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=407
TESTED=Dither unittests
R=brucedawson@google.com

Review URL: https://webrtc-codereview.appspot.com/46459004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1310 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=407
TESTED=ARGBToRGB565Dither unittest
R=brucedawson@google.com, harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/44519004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1309 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=407
TESTED=ARGBToRGB565Dither unittest
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/41039004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1308 16f28f9a-4ce2-e073-06de-1de4eb20be90

ARM32/64 NEON versions of ScaleRowDown2Linear_NEON are implemented.

BUG=319
TESTED=libyuvTest.ScaleDownBy2_Linear on ARM32/64 with Android
R=fbarchard@google.com

Change-Id: I2c7f43a0d56ed4dfded5bdbbb61765d87d65a2ba

Review URL: https://webrtc-codereview.appspot.com/43519005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1307 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=407
TESTED=unittest passes
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/43539004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1306 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=408
TESTED=nacl arm build
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/38329004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1305 16f28f9a-4ce2-e073-06de-1de4eb20be90

ARM64 NEON version of YUV422TORGB is updated based on C algorithm.
Except TestJ420 and TestYUV, all the other tests are passed.

BUG=324
TESTED=libyuvTest on ARM64 with Android
R=fbarchard@google.com

Change-Id: Ia2663cfdeccc4c8c1d46262c9c0cc67b71d45e70

Review URL: https://webrtc-codereview.appspot.com/35329004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1304 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TESTED=untested
R=bcornell@google.com

Review URL: https://webrtc-codereview.appspot.com/42149004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1303 16f28f9a-4ce2-e073-06de-1de4eb20be90

port ARGBToRGB565 and ARGB1555 to AVX2.  Enable functions that use ARGBToRGB565 AVX2 code.  Add ARGBToRGB565Dither function.
BUG=403
TESTED=local windows build
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/42109004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1302 16f28f9a-4ce2-e073-06de-1de4eb20be90