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      1 /*
      2  * Copyright 2014 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "gm.h"
      9 #include "SkBlurMaskFilter.h"
     10 #include "SkCanvas.h"
     11 #include "SkColorFilter.h"
     12 
     13 #include "SkColorFilter.h"
     14 static SkBitmap make_bm() {
     15     SkBitmap bm;
     16     bm.allocN32Pixels(100, 100);
     17 
     18     SkCanvas canvas(bm);
     19     canvas.clear(0);
     20     SkPaint paint;
     21     paint.setAntiAlias(true);
     22     canvas.drawCircle(50, 50, 50, paint);
     23     return bm;
     24 }
     25 
     26 class EmbossGM : public skiagm::GM {
     27 public:
     28     EmbossGM() {
     29     }
     30 
     31 protected:
     32     virtual SkString onShortName() SK_OVERRIDE {
     33         return SkString("emboss");
     34     }
     35 
     36     virtual SkISize onISize() SK_OVERRIDE {
     37         return SkISize::Make(600, 120);
     38     }
     39 
     40     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
     41         SkPaint paint;
     42         SkBitmap bm = make_bm();
     43         canvas->drawBitmap(bm, 10, 10, &paint);
     44 
     45         const SkScalar dir[] = { 1, 1, 1 };
     46         paint.setMaskFilter(SkBlurMaskFilter::CreateEmboss(3, dir, 0.3f, 0.1f))->unref();
     47         canvas->translate(bm.width() + SkIntToScalar(10), 0);
     48         canvas->drawBitmap(bm, 10, 10, &paint);
     49 
     50         // this combination of emboss+colorfilter used to crash -- so we exercise it to
     51         // confirm that we have a fix.
     52         paint.setColorFilter(SkColorFilter::CreateModeFilter(0xFFFF0000, SkXfermode::kSrcATop_Mode))->unref();
     53         canvas->translate(bm.width() + SkIntToScalar(10), 0);
     54         canvas->drawBitmap(bm, 10, 10, &paint);
     55     }
     56 
     57 private:
     58     typedef skiagm::GM INHERITED;
     59 };
     60 
     61 DEF_GM( return SkNEW(EmbossGM); )
     62