Make sure SkDrawLooper objects can only be allocated on the heap.

gm/tilemodes_scaled.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 "gm.h"
 #include "SkPath.h"
 #include "SkRegion.h"
 #include "SkShader.h"
 #include "SkUtils.h"
 #include "SkColorPriv.h"
 #include "SkColorFilter.h"
 #include "SkTypeface.h"
+#include "SkBlurMask.h"
 
 // effects
 #include "SkGradientShader.h"
 #include "SkUnitMappers.h"
 #include "SkBlurDrawLooper.h"
 
 static void makebm(SkBitmap* bm, SkColorType ct, int w, int h) {
     bm->allocPixels(SkImageInfo::Make(w, h, ct, kPremul_SkAlphaType));
     bm->eraseColor(SK_ColorTRANSPARENT);
 
@@ skipping 22 matching lines @@
     paint->setShader(shader)->unref();
     paint->setFilterLevel(filter_level);
 }
 
 static const SkColorType gColorTypes[] = {
     kN32_SkColorType,
     kRGB_565_SkColorType,
 };
 
 class ScaledTilingGM : public skiagm::GM {
-    SkBlurDrawLooper    fLooper;
+    SkAutoTUnref<SkBlurDrawLooper> fLooper;
 public:
     ScaledTilingGM(bool powerOfTwoSize)
-            : fLooper(SkIntToScalar(1), SkIntToScalar(2), SkIntToScalar(2), 0x88000000)
+            : fLooper(SkBlurDrawLooper::Create(0x88000000,
+                                               SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(1)),
+                                               SkIntToScalar(2), SkIntToScalar(2)))
             , fPowerOfTwoSize(powerOfTwoSize) {
     }
 
     SkBitmap    fTexture[SK_ARRAY_COUNT(gColorTypes)];
 
 protected:
 
     enum {
         kPOTSize = 4,
         kNPOTSize = 3,
@@ skipping 38 matching lines @@
 
         SkScalar y = SkIntToScalar(24);
         SkScalar x = SkIntToScalar(10)/scale;
 
         for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
             for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
                 SkPaint p;
                 SkString str;
                 p.setAntiAlias(true);
                 p.setDither(true);
-                p.setLooper(&fLooper);
+                p.setLooper(fLooper);
                 str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]);
 
                 p.setTextAlign(SkPaint::kCenter_Align);
                 canvas->drawText(str.c_str(), str.size(), scale*(x + r.width()/2), y, p);
 
                 x += r.width() * 4 / 3;
             }
         }
 
         y = SkIntToScalar(40) / scale;
@@ skipping 19 matching lines @@
                         canvas->drawRect(r, paint);
                         canvas->restore();
 
                         x += r.width() * 4 / 3;
                     }
                 }
                 {
                     SkPaint p;
                     SkString str;
                     p.setAntiAlias(true);
-                    p.setLooper(&fLooper);
+                    p.setLooper(fLooper);
                     str.printf("%s, %s", gColorTypeNames[i], gFilterNames[j]);
                     canvas->drawText(str.c_str(), str.size(), scale*x, scale*(y + r.height() * 2 / 3), p);
                 }
 
                 y += r.height() * 4 / 3;
             }
         }
     }
 
 private:
@@ skipping 101 matching lines @@
 private:
     typedef skiagm::GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new ScaledTilingGM(true); )
 DEF_GM( return new ScaledTilingGM(false); )
 DEF_GM( return new ScaledTiling2GM(make_bm, "bitmap"); )
 DEF_GM( return new ScaledTiling2GM(make_grad, "gradient"); )