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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 "SkBlurMask.h" |
| 10 #include "SkBlurMaskFilter.h" |
| 11 #include "SkCanvas.h" |
| 12 #include "SkPaint.h" |
| 13 #include "SkString.h" |
| 14 |
| 15 class BlurCirclesGM : public skiagm::GM { |
| 16 public: |
| 17 BlurCirclesGM() |
| 18 : fName("blurcircles") { |
| 19 } |
| 20 |
| 21 protected: |
| 22 virtual uint32_t onGetFlags() const SK_OVERRIDE { |
| 23 return kSkipTiled_Flag; |
| 24 } |
| 25 |
| 26 virtual SkString onShortName() SK_OVERRIDE { |
| 27 return fName; |
| 28 } |
| 29 |
| 30 virtual SkISize onISize() SK_OVERRIDE { |
| 31 return SkISize::Make(950, 950); |
| 32 } |
| 33 |
| 34 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 35 canvas->scale(1.5f, 1.5f); |
| 36 canvas->translate(50,50); |
| 37 |
| 38 const float blurRadii[] = { 1,5,10,20 }; |
| 39 const int circleRadii[] = { 5,10,25,50 }; |
| 40 for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) { |
| 41 SkAutoCanvasRestore autoRestore(canvas, true); |
| 42 canvas->translate(0, SkIntToScalar(150*i)); |
| 43 for (size_t j = 0; j < SK_ARRAY_COUNT(circleRadii); ++j) { |
| 44 SkMaskFilter* filter = SkBlurMaskFilter::Create( |
| 45 kNormal_SkBlurStyle, |
| 46 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])
), |
| 47 SkBlurMaskFilter::kHighQuality_BlurFlag); |
| 48 SkPaint paint; |
| 49 paint.setColor(SK_ColorBLACK); |
| 50 paint.setMaskFilter(filter)->unref(); |
| 51 |
| 52 canvas->drawCircle(SkIntToScalar(50),SkIntToScalar(50),SkIntToSc
alar(circleRadii[j]),paint); |
| 53 canvas->translate(SkIntToScalar(150), 0); |
| 54 } |
| 55 } |
| 56 } |
| 57 private: |
| 58 const SkString fName; |
| 59 |
| 60 typedef skiagm::GM INHERITED; |
| 61 }; |
| 62 |
| 63 DEF_GM(return new BlurCirclesGM();) |
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