ARM Skia NEON patches - 35 - First AArch64 support

gyp/opts.gyp

Index: gyp/opts.gyp
diff --git a/gyp/opts.gyp b/gyp/opts.gyp
index 0d3b2e3d6aae9153f0796976790c536ea16f4f16..4534f53e594580fb60a8a4f8eab5de825aae5c6c 100644
--- a/gyp/opts.gyp
+++ b/gyp/opts.gyp
@@ -114,6 +114,23 @@
             '../src/opts/SkXfermode_opts_none.cpp',
           ],
         }],
+        [ 'skia_arch_type == "arm64"', {

[djsollen, 2014/03/20 14:40:16]

I'm inclined to stick with the way we handle arch_type and arch_width for x86. 
I know that would mean overhauling this gyp file to be explicit about width 32
vs 64, but think it may be worth it.

Don't make the change yet as I'm going to check with the chrome team on their
approach.  Further, even if we want to make that change I think I could be
convinced to check it in this way first and do a follow on CL.

[djsollen, 2014/03/20 15:37:27]

So chromium is opting for arch_type == arm64 as well. So let's leave this as is
since it will make our gyp files more compatible with theirs.

[kevin.petit, 2014/03/20 16:05:09]

To be honest, this has my preference as AArch64 is a different and incompatible
instruction set.

+          'sources': [
+            '../src/opts/SkBitmapProcState_arm_neon.cpp',
+            '../src/opts/SkBitmapProcState_matrixProcs_neon.cpp',
+            '../src/opts/SkBitmapProcState_opts_arm.cpp',
+            '../src/opts/SkBlitMask_opts_arm.cpp',
+            '../src/opts/SkBlitMask_opts_arm_neon.cpp',
+            '../src/opts/SkBlitRow_opts_none.cpp',
+            '../src/opts/SkBlurImage_opts_arm.cpp',
+            '../src/opts/SkBlurImage_opts_neon.cpp',
+            '../src/opts/SkMorphology_opts_arm.cpp',
+            '../src/opts/SkMorphology_opts_neon.cpp',
+            '../src/opts/SkUtils_opts_none.cpp',
+            '../src/opts/SkXfermode_opts_arm.cpp',
+            '../src/opts/SkXfermode_opts_arm_neon.cpp',
+          ],
+        }],
       ],
     },
     # For the same lame reasons as what is done for skia_opts, we have to