Add SSE4 version of BlurImage optimizations.

gyp/opts.gyp

Index: gyp/opts.gyp
diff --git a/gyp/opts.gyp b/gyp/opts.gyp
index 85c8c503fabbac5e766976c470528e19734bfd5a..6d7f273762d3481e9f6fb68e81accec9130de7b0 100644
--- a/gyp/opts.gyp
+++ b/gyp/opts.gyp
@@ -217,6 +217,14 @@
           'cflags': [
             '-msse4',
           ],
+          'OTHER_CPLUSPLUSFLAGS': [

[mtklein, 2014/07/01 16:41:20]

I think you will need to nest it inside 'xcode_settings':

'xcode_settings': {
  'OTHER_CPLUSPLUSFLAGS': [ '-msse4' ],
},

GYP is really weird.

[henrik.smiding, 2014/07/02 12:55:14]

I'll try that!

+            '-msse4',
+          ],

[mtklein, 2014/07/01 16:41:20]

If that doesn't work, try also adding

'OTHER_CPLUSPLUSFLAGS!': [ '-mssse3' ],

?

The ! at the end makes it a negative merge... should remove -mssse3 from the
commandline.

[henrik.smiding, 2014/07/02 12:55:14]

I tried that in Patch set #4. Not nested in xcode_settings though.

+        }],
+        [ 'skia_arch_type == "x86"', {
+          'sources': [
+            '../src/opts/SkBlurImage_opts_SSE4.cpp',
+          ],
         }],
         [ 'skia_arch_width == 64 and skia_arch_type == "x86"', {
           'sources': [