Push sigma-based blur interface into our GMs/benches/tests/samplecode

gm/rects.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkTArray.h"
 #include "SkMatrix.h"
@@ skipping 35 matching lines @@
             p.setColor(SK_ColorWHITE);
             p.setAntiAlias(true);
             fPaints.push_back(p);
         }
 
         {
             // AA with mask filter
             SkPaint p;
             p.setColor(SK_ColorWHITE);
             p.setAntiAlias(true);
-            SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(5),
+            SkMaskFilter* mf = SkBlurMaskFilter::Create(
                                    SkBlurMaskFilter::kNormal_BlurStyle,
+                                   SkFloatToScalar(3.38675f),
                                    SkBlurMaskFilter::kHighQuality_BlurFlag);
             p.setMaskFilter(mf)->unref();
             fPaints.push_back(p);
         }
 
         {
             // AA with radial shader
             SkPaint p;
             p.setColor(SK_ColorWHITE);
             p.setAntiAlias(true);
             SkPoint center = SkPoint::Make(SkIntToScalar(-5), SkIntToScalar(30));
             SkColor colors[] = { SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN };
             SkScalar pos[] = { 0, SK_ScalarHalf, SK_Scalar1 };
             SkShader* s = SkGradientShader::CreateRadial(center,
                                                          SkIntToScalar(20),
                                                          colors,
                                                          pos,
                                                          SK_ARRAY_COUNT(colors),
                                                          SkShader::kClamp_TileMode);
             p.setShader(s)->unref();
             fPaints.push_back(p);
         }
 
         {
             // AA with blur
             SkPaint p;
             p.setColor(SK_ColorWHITE);
             p.setAntiAlias(true);
             SkBlurDrawLooper* shadowLooper =
-                new SkBlurDrawLooper (SkIntToScalar(10), SkIntToScalar(5),
-                                      SkIntToScalar(10), SK_ColorWHITE,
+                new SkBlurDrawLooper (SK_ColorWHITE, SkFloatToScalar(6.2735f), 
+                                      SkIntToScalar(5), SkIntToScalar(10),
                                       SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
                                       SkBlurDrawLooper::kOverrideColor_BlurFlag |
                                       SkBlurDrawLooper::kHighQuality_BlurFlag);
             SkAutoUnref aurL0(shadowLooper);
             p.setLooper(shadowLooper);
             fPaints.push_back(p);
         }
 
         {
             // AA with stroke style
@@ skipping 149 matching lines @@
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new RectsGM; }
 static GMRegistry reg(MyFactory);
 
 }