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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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