modifying blur gms to test with shader too

gm/blurroundrect.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 "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 74 matching lines @@
         canvas->drawRRect(fRRect, paint);
     }
 
 private:
     SkString        fName;
     SkRRect         fRRect;
 
     typedef skiagm::GM INHERITED;
 };
 
+#include "SkGradientShader.h"
+/*
+ * Spits out a dummy gradient to test blur with shader on paint
+ */
+static SkShader* MakeRadial() {
+    SkPoint pts[2] = {
+        { 0, 0 },
+        { SkIntToScalar(100), SkIntToScalar(100) }
+    };
+    SkShader::TileMode tm = SkShader::kClamp_TileMode;
+    const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, };
+    const SkScalar pos[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
+    SkMatrix scale;
+    scale.setScale(0.5f, 0.5f);
+    scale.postTranslate(5.f, 5.f);
+    SkPoint center0, center1;
+    center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
+                SkScalarAve(pts[0].fY, pts[1].fY));
+    center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5),
+                SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4));
+    return SkGradientShader::CreateTwoPointRadial(center1, (pts[1].fX - pts[0].fX) / 7,
+                                                  center0, (pts[1].fX - pts[0].fX) / 2,
+                                                  colors, pos, SK_ARRAY_COUNT(colors), tm,
+                                                  0, &scale);
+}
+
 // Simpler blurred RR test cases where all the radii are the same.
 class SimpleBlurRoundRectGM : public skiagm::GM {
 public:
     SimpleBlurRoundRectGM()
         : fName("simpleblurroundrect") {
     }
 
 protected:
+    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+        return kSkipTiled_Flag;
+    }
+
     virtual SkString onShortName() SK_OVERRIDE {
         return fName;
     }
 
     virtual SkISize onISize() SK_OVERRIDE {
-        return SkISize::Make(950, 950);
+        return SkISize::Make(1000, 500);
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         canvas->scale(1.5f, 1.5f);
         canvas->translate(50,50);
 
         const float blurRadii[] = { 1,5,10,20 };
         const int cornerRadii[] = { 1,5,10,20 };
-        const SkRect r = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(100));
+        const SkRect r = SkRect::MakeWH(SkIntToScalar(25), SkIntToScalar(25));
         for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) {
             SkAutoCanvasRestore autoRestore(canvas, true);
             canvas->translate(0, (r.height() + SkIntToScalar(50)) * i);
             for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) {
-                SkMaskFilter* filter = SkBlurMaskFilter::Create(
-                    kNormal_SkBlurStyle,
-                    SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])),
-                    SkBlurMaskFilter::kHighQuality_BlurFlag);
-                SkPaint paint;
-                paint.setColor(SK_ColorBLACK);
-                paint.setMaskFilter(filter)->unref();
+                for (int k = 0; k <= 1; k++) {
+                    SkMaskFilter* filter = SkBlurMaskFilter::Create(
+                        kNormal_SkBlurStyle,
+                        SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])),
+                        SkBlurMaskFilter::kHighQuality_BlurFlag);
+                    SkPaint paint;
+                    paint.setColor(SK_ColorBLACK);
+                    paint.setMaskFilter(filter)->unref();
 
-                SkRRect rrect;
-                rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]), SkIntToScalar(cornerRadii[j]));
-                canvas->drawRRect(rrect, paint);
-                canvas->translate(r.width() + SkIntToScalar(50), 0);
+                    bool useRadial = SkToBool(k);
+                    if (useRadial) {
+                        paint.setShader(MakeRadial())->unref();
+                    }
+
+                    SkRRect rrect;
+                    rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]),
+                                    SkIntToScalar(cornerRadii[j]));
+                    canvas->drawRRect(rrect, paint);
+                    canvas->translate(r.width() + SkIntToScalar(50), 0);
+                }
             }
         }
     }
 private:
     const SkString  fName;
 
     typedef         skiagm::GM INHERITED;
 };
 
 // Create one with dimensions/rounded corners based on the skp
 //
 // TODO(scroggo): Disabled in an attempt to rememdy
 // https://code.google.com/p/skia/issues/detail?id=1801 ('Win7 Test bots all failing GenerateGMs:
 // ran wrong number of tests')
 //DEF_GM(return new BlurRoundRectGM(600, 5514, 6);)
 
 // Rounded rect with two opposite corners with large radii, the other two
 // small.
 DEF_GM(return new BlurRoundRectGM(100, 100);)
 
 DEF_GM(return new SimpleBlurRoundRectGM();)