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| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 #include "gm.h" | |
| 9 | |
| 10 namespace skiagm { | |
| 11 | |
| 12 class NoColorBleedGM : public GM { | |
| 13 public: | |
| 14 NoColorBleedGM() { | |
| 15 this->setBGColor(0xFFDDDDDD); | |
| 16 } | |
| 17 | |
| 18 protected: | |
| 19 virtual SkString onShortName() { | |
| 20 return SkString("nocolorbleed"); | |
| 21 } | |
| 22 | |
| 23 virtual SkISize onISize() { | |
| 24 return make_isize(200, 200); | |
| 25 } | |
| 26 | |
| 27 virtual void onDraw(SkCanvas* canvas) { | |
| 28 SkBitmap sprite; | |
| 29 sprite.setConfig(SkBitmap::kARGB_8888_Config, 4, 4, 4*sizeof(SkColor)); | |
| 30 const SkColor spriteData[16] = { | |
| 31 SK_ColorBLACK, SK_ColorCYAN, SK_ColorMAGENTA, SK_ColorYELLOW, | |
| 32 SK_ColorBLACK, SK_ColorWHITE, SK_ColorBLACK, SK_ColorRED, | |
| 33 SK_ColorGREEN, SK_ColorBLACK, SK_ColorWHITE, SK_ColorBLUE, | |
| 34 SK_ColorYELLOW, SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorBLACK | |
| 35 }; | |
| 36 sprite.allocPixels(); | |
| 37 sprite.lockPixels(); | |
| 38 SkPMColor* addr = sprite.getAddr32(0, 0); | |
| 39 for (size_t i = 0; i < SK_ARRAY_COUNT(spriteData); ++i) { | |
| 40 addr[i] = SkPreMultiplyColor(spriteData[i]); | |
| 41 } | |
| 42 sprite.unlockPixels(); | |
| 43 | |
| 44 // We draw a magnified subrect of the sprite | |
| 45 // sample interpolation may cause color bleeding around edges | |
| 46 // the subrect is a pure white area | |
| 47 SkIRect srcRect; | |
| 48 SkRect dstRect; | |
| 49 SkPaint paint; | |
| 50 paint.setFilterBitmap(true); | |
| 51 //First row : full texture with and without filtering | |
| 52 srcRect.setXYWH(0, 0, 4, 4); | |
| 53 dstRect.setXYWH(SkIntToScalar(0), SkIntToScalar(0) | |
| 54 , SkIntToScalar(100), SkIntToScalar(100)); | |
| 55 canvas->drawBitmapRect(sprite, &srcRect, dstRect, &paint); | |
| 56 dstRect.setXYWH(SkIntToScalar(100), SkIntToScalar(0) | |
| 57 , SkIntToScalar(100), SkIntToScalar(100)); | |
| 58 canvas->drawBitmapRect(sprite, &srcRect, dstRect); | |
| 59 //Second row : sub rect of texture with and without filtering | |
| 60 srcRect.setXYWH(1, 1, 2, 2); | |
| 61 dstRect.setXYWH(SkIntToScalar(25), SkIntToScalar(125) | |
| 62 , SkIntToScalar(50), SkIntToScalar(50)); | |
| 63 canvas->drawBitmapRect(sprite, &srcRect, dstRect, &paint); | |
| 64 dstRect.setXYWH(SkIntToScalar(125), SkIntToScalar(125) | |
| 65 , SkIntToScalar(50), SkIntToScalar(50)); | |
| 66 canvas->drawBitmapRect(sprite, &srcRect, dstRect); | |
| 67 } | |
| 68 | |
| 69 private: | |
| 70 typedef GM INHERITED; | |
| 71 }; | |
| 72 | |
| 73 ////////////////////////////////////////////////////////////////////////////// | |
| 74 | |
| 75 static GM* MyFactory(void*) { return new NoColorBleedGM; } | |
| 76 static GMRegistry reg(MyFactory); | |
| 77 | |
| 78 } | |
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