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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "gm.h" | 8 #include "gm.h" |
9 #include "SkAlphaThresholdFilter.h" | 9 #include "SkAlphaThresholdFilter.h" |
10 #include "SkRandom.h" | 10 #include "SkRandom.h" |
11 #include "SkSurface.h" | 11 #include "SkSurface.h" |
12 | 12 |
13 #define WIDTH 500 | 13 #define WIDTH 500 |
14 #define HEIGHT 500 | 14 #define HEIGHT 500 |
15 | 15 |
16 namespace { | 16 namespace { |
17 | 17 |
18 void draw_rects(SkCanvas* canvas) { | 18 void draw_rects(SkCanvas* canvas) { |
19 SkPaint rectPaint; | 19 SkPaint rectPaint; |
20 rectPaint.setColor(0xFF0000FF); | 20 rectPaint.setColor(0xFF0000FF); |
21 canvas->drawRect(SkRect::MakeXYWH(0, 0, WIDTH / 2, HEIGHT / 2), rectPaint); | 21 canvas->drawRect(SkRect::MakeXYWH(0, 0, WIDTH / 2, HEIGHT / 2), rectPaint); |
22 rectPaint.setColor(0xBFFF0000); | 22 rectPaint.setColor(0xBFFF0000); |
23 canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, 0, WIDTH / 2, HEIGHT / 2), rect
Paint); | 23 canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, 0, WIDTH / 2, HEIGHT / 2), rect
Paint); |
24 rectPaint.setColor(0x3F00FF00); | 24 rectPaint.setColor(0x3F00FF00); |
25 canvas->drawRect(SkRect::MakeXYWH(0, HEIGHT / 2, WIDTH / 2, HEIGHT / 2), rec
tPaint); | 25 canvas->drawRect(SkRect::MakeXYWH(0, HEIGHT / 2, WIDTH / 2, HEIGHT / 2), rec
tPaint); |
26 rectPaint.setColor(0x00000000); | 26 rectPaint.setColor(0x00000000); |
27 canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, HEIGHT / 2, WIDTH / 2, HEIGHT /
2), rectPaint); | 27 canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, HEIGHT / 2, WIDTH / 2, HEIGHT /
2), rectPaint); |
28 } | 28 } |
29 | 29 |
30 SkPaint create_filter_paint() { | 30 SkPaint create_filter_paint(SkImageFilter::CropRect* cropRect = nullptr) { |
31 SkIRect rects[2]; | 31 SkIRect rects[2]; |
32 rects[0] = SkIRect::MakeXYWH(0, 150, WIDTH, HEIGHT - 300); | 32 rects[0] = SkIRect::MakeXYWH(0, 150, WIDTH, HEIGHT - 300); |
33 rects[1] = SkIRect::MakeXYWH(150, 0, WIDTH - 300, HEIGHT); | 33 rects[1] = SkIRect::MakeXYWH(150, 0, WIDTH - 300, HEIGHT); |
34 SkRegion region; | 34 SkRegion region; |
35 region.setRects(rects, 2); | 35 region.setRects(rects, 2); |
36 | 36 |
37 SkPaint paint; | 37 SkPaint paint; |
38 paint.setImageFilter(SkAlphaThresholdFilter::Make(region, 0.2f, 0.7f, nullpt
r)); | 38 paint.setImageFilter(SkAlphaThresholdFilter::Make(region, 0.2f, 0.7f, nullpt
r, cropRect)); |
39 return paint; | 39 return paint; |
40 } | 40 } |
41 | 41 |
42 }; | 42 }; |
43 | 43 |
44 namespace skiagm { | 44 namespace skiagm { |
45 | 45 |
46 class ImageAlphaThresholdGM : public GM { | 46 class ImageAlphaThresholdGM : public GM { |
47 public: | 47 public: |
48 ImageAlphaThresholdGM() { | 48 ImageAlphaThresholdGM(bool useCropRect) : fUseCropRect(true) { |
49 this->setBGColor(0xFFFFFFFF); | 49 this->setBGColor(0xFFFFFFFF); |
50 } | 50 } |
51 | 51 |
52 protected: | 52 protected: |
53 | 53 |
54 SkString onShortName() override { | 54 SkString onShortName() override { |
| 55 if (fUseCropRect) { |
| 56 return SkString("imagealphathreshold_crop"); |
| 57 } |
| 58 |
55 return SkString("imagealphathreshold"); | 59 return SkString("imagealphathreshold"); |
56 } | 60 } |
57 | 61 |
58 SkISize onISize() override { | 62 SkISize onISize() override { |
59 return SkISize::Make(WIDTH, HEIGHT); | 63 return SkISize::Make(WIDTH, HEIGHT); |
60 } | 64 } |
61 | 65 |
62 void onDraw(SkCanvas* canvas) override { | 66 void onDraw(SkCanvas* canvas) override { |
63 SkMatrix matrix; | 67 SkMatrix matrix; |
64 matrix.reset(); | 68 matrix.reset(); |
65 matrix.setTranslate(WIDTH * .1f, HEIGHT * .1f); | 69 matrix.setTranslate(WIDTH * .1f, HEIGHT * .1f); |
66 matrix.postScale(.8f, .8f); | 70 matrix.postScale(.8f, .8f); |
67 | 71 |
68 canvas->concat(matrix); | 72 canvas->concat(matrix); |
69 | 73 |
70 SkPaint paint = create_filter_paint(); | 74 SkRect r = SkRect::MakeLTRB(100, 100, WIDTH - 100, HEIGHT - 100); |
| 75 SkImageFilter::CropRect cropRect(r); |
| 76 |
| 77 SkPaint paint = create_filter_paint(fUseCropRect ? &cropRect : nullptr); |
71 canvas->saveLayer(nullptr, &paint); | 78 canvas->saveLayer(nullptr, &paint); |
72 draw_rects(canvas); | 79 draw_rects(canvas); |
73 | 80 |
74 canvas->restore(); | 81 canvas->restore(); |
75 } | 82 } |
76 | 83 |
77 private: | 84 private: |
| 85 bool fUseCropRect; |
| 86 |
78 typedef GM INHERITED; | 87 typedef GM INHERITED; |
79 }; | 88 }; |
80 | 89 |
| 90 |
81 class ImageAlphaThresholdSurfaceGM : public GM { | 91 class ImageAlphaThresholdSurfaceGM : public GM { |
82 public: | 92 public: |
83 ImageAlphaThresholdSurfaceGM() { | 93 ImageAlphaThresholdSurfaceGM() { |
84 this->setBGColor(0xFFFFFFFF); | 94 this->setBGColor(0xFFFFFFFF); |
85 } | 95 } |
86 | 96 |
87 protected: | 97 protected: |
88 SkString onShortName() override { | 98 SkString onShortName() override { |
89 return SkString("imagealphathreshold_surface"); | 99 return SkString("imagealphathreshold_surface"); |
90 } | 100 } |
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106 canvas->clipRect(SkRect::MakeLTRB(100, 100, WIDTH - 100, HEIGHT - 100)); | 116 canvas->clipRect(SkRect::MakeLTRB(100, 100, WIDTH - 100, HEIGHT - 100)); |
107 canvas->drawImage(surface->makeImageSnapshot().get(), 0, 0, &paint); | 117 canvas->drawImage(surface->makeImageSnapshot().get(), 0, 0, &paint); |
108 } | 118 } |
109 | 119 |
110 private: | 120 private: |
111 typedef GM INHERITED; | 121 typedef GM INHERITED; |
112 }; | 122 }; |
113 | 123 |
114 ////////////////////////////////////////////////////////////////////////////// | 124 ////////////////////////////////////////////////////////////////////////////// |
115 | 125 |
116 DEF_GM(return new ImageAlphaThresholdGM();) | 126 DEF_GM(return new ImageAlphaThresholdGM(true);) |
| 127 DEF_GM(return new ImageAlphaThresholdGM(false);) |
117 DEF_GM(return new ImageAlphaThresholdSurfaceGM();) | 128 DEF_GM(return new ImageAlphaThresholdSurfaceGM();) |
118 | 129 |
119 } | 130 } |
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