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

samplecode/SampleTextAlpha.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 51 matching lines @@
     virtual void onDrawContent(SkCanvas* canvas) {
         const char* str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
         SkPaint paint;
         SkScalar    x = SkIntToScalar(10);
         SkScalar    y = SkIntToScalar(20);
 
         paint.setFlags(0x105);
 
         paint.setARGB(fByte, 0xFF, 0xFF, 0xFF);
 
-        paint.setMaskFilter(SkBlurMaskFilter::Create(SkIntToScalar(3),
-                                        SkBlurMaskFilter::kNormal_BlurStyle));
+        paint.setMaskFilter(SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle,
+                                                     SkFloatToScalar(2.23205f)));
         paint.getMaskFilter()->unref();
 
         SkRandom rand;
 
         for (int ps = 6; ps <= 35; ps++) {
             paint.setColor(rand.nextU() | (0xFF << 24));
             paint.setTextSize(SkIntToScalar(ps));
             paint.setTextSize(SkIntToScalar(24));
             canvas->drawText(str, strlen(str), x, y, paint);
             y += paint.getFontMetrics(NULL);
@@ skipping 29 matching lines @@
 private:
     int fByte;
 
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new TextAlphaView; }
 static SkViewRegister reg(MyFactory);