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

samplecode/SampleAll.cpp

Index: samplecode/SampleAll.cpp
===================================================================
--- samplecode/SampleAll.cpp	(revision 11004)
+++ samplecode/SampleAll.cpp	(working copy)
@@ -79,8 +79,8 @@
 ///////////////////////////////////////////////////////////
 
 static void r0(SkLayerRasterizer* rast, SkPaint& p) {
-    p.setMaskFilter(SkBlurMaskFilter::Create(SkIntToScalar(3),
-                                             SkBlurMaskFilter::kNormal_BlurStyle,
+    p.setMaskFilter(SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle,
+                                             SkFloatToScalar(2.23205f),
                                              SkBlurMaskFilter::kNone_BlurFlag))->unref();
     rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3));
 
@@ -255,10 +255,9 @@
 
 #if 1
     SkScalar dir[] = { SK_Scalar1, SK_Scalar1, SK_Scalar1 };
-    paint->setMaskFilter(SkBlurMaskFilter::CreateEmboss(dir,
+    paint->setMaskFilter(SkBlurMaskFilter::CreateEmboss(SkFloatToScalar(2.23205f), dir,
                                                         SK_Scalar1/4,
-                                                        SkIntToScalar(4),
-                                                        SkIntToScalar(3)))->unref();
+                                                        SkIntToScalar(4)))->unref();
     paint->setColor(SK_ColorBLUE);
 #endif
 }
@@ -386,8 +385,8 @@
         light.fDirection[2] = SK_Scalar1/3;
         light.fAmbient        = 0x48;
         light.fSpecular        = 0x80;
-        SkScalar radius = SkIntToScalar(12)/5;
-        SkEmbossMaskFilter* embossFilter = new SkEmbossMaskFilter(light, radius);
+        SkScalar sigma = SkFloatToScalar(1.88564f);
+        SkEmbossMaskFilter* embossFilter = new SkEmbossMaskFilter(sigma, light);
 
         SkXfermode* xfermode = SkXfermode::Create(SkXfermode::kXor_Mode);
         SkColorFilter* lightingFilter = SkColorFilter::CreateLightingFilter(