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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2013 Google Inc. | 3 * Copyright 2013 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 #include "gm.h" | 8 #include "gm.h" |
9 | 9 |
10 #include "SkBitmap.h" | 10 #include "SkBitmap.h" |
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28 SkPaint circlePaint; | 28 SkPaint circlePaint; |
29 circlePaint.setColor(SK_ColorBLACK); | 29 circlePaint.setColor(SK_ColorBLACK); |
30 | 30 |
31 bm->allocPixels(SkImageInfo::MakeA8(20, 20)); | 31 bm->allocPixels(SkImageInfo::MakeA8(20, 20)); |
32 bm->eraseColor(SK_ColorTRANSPARENT); | 32 bm->eraseColor(SK_ColorTRANSPARENT); |
33 | 33 |
34 SkCanvas canvas(*bm); | 34 SkCanvas canvas(*bm); |
35 canvas.drawCircle(10, 10, 10, circlePaint); | 35 canvas.drawCircle(10, 10, 10, circlePaint); |
36 } | 36 } |
37 | 37 |
38 static void adopt_shader(SkPaint* paint, SkShader* shader, SkMatrix s) { | 38 static void adopt_shader(SkPaint* paint, SkShader* shader) { |
39 shader->setLocalMatrix(s); | |
40 paint->setShader(shader); | 39 paint->setShader(shader); |
41 SkSafeUnref(shader); | 40 SkSafeUnref(shader); |
42 } | 41 } |
43 | 42 |
44 class BitmapShaderGM : public GM { | 43 class BitmapShaderGM : public GM { |
45 public: | 44 public: |
46 | 45 |
47 BitmapShaderGM() { | 46 BitmapShaderGM() { |
48 this->setBGColor(SK_ColorGRAY); | 47 this->setBGColor(SK_ColorGRAY); |
49 draw_bm(&fBitmap); | 48 draw_bm(&fBitmap); |
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65 for (int i = 0; i < 2; i++) { | 64 for (int i = 0; i < 2; i++) { |
66 SkMatrix s; | 65 SkMatrix s; |
67 s.reset(); | 66 s.reset(); |
68 if (1 == i) { | 67 if (1 == i) { |
69 s.setScale(1.5f, 1.5f); | 68 s.setScale(1.5f, 1.5f); |
70 s.postTranslate(2, 2); | 69 s.postTranslate(2, 2); |
71 } | 70 } |
72 | 71 |
73 canvas->save(); | 72 canvas->save(); |
74 adopt_shader(&paint, SkShader::CreateBitmapShader(fBitmap, SkShader:
:kClamp_TileMode, | 73 adopt_shader(&paint, SkShader::CreateBitmapShader(fBitmap, SkShader:
:kClamp_TileMode, |
75 SkShader::kClamp_T
ileMode), s); | 74 SkShader::kClamp_T
ileMode, &s)); |
76 | 75 |
77 // draw the shader with a bitmap mask | 76 // draw the shader with a bitmap mask |
78 canvas->drawBitmap(fMask, 0, 0, &paint); | 77 canvas->drawBitmap(fMask, 0, 0, &paint); |
79 canvas->drawBitmap(fMask, 30, 0, &paint); | 78 canvas->drawBitmap(fMask, 30, 0, &paint); |
80 | 79 |
81 canvas->translate(0, 25); | 80 canvas->translate(0, 25); |
82 | 81 |
83 canvas->drawCircle(10, 10, 10, paint); | 82 canvas->drawCircle(10, 10, 10, paint); |
84 canvas->drawCircle(40, 10, 10, paint); // no blue circle expected | 83 canvas->drawCircle(40, 10, 10, paint); // no blue circle expected |
85 | 84 |
86 canvas->translate(0, 25); | 85 canvas->translate(0, 25); |
87 | 86 |
88 // clear the shader, colorized by a solid color with a bitmap mask | 87 // clear the shader, colorized by a solid color with a bitmap mask |
89 paint.setShader(NULL); | 88 paint.setShader(NULL); |
90 paint.setColor(SK_ColorGREEN); | 89 paint.setColor(SK_ColorGREEN); |
91 canvas->drawBitmap(fMask, 0, 0, &paint); | 90 canvas->drawBitmap(fMask, 0, 0, &paint); |
92 canvas->drawBitmap(fMask, 30, 0, &paint); | 91 canvas->drawBitmap(fMask, 30, 0, &paint); |
93 | 92 |
94 canvas->translate(0, 25); | 93 canvas->translate(0, 25); |
95 | 94 |
96 adopt_shader(&paint, SkShader::CreateBitmapShader(fMask, SkShader::k
Repeat_TileMode, | 95 adopt_shader(&paint, SkShader::CreateBitmapShader(fMask, SkShader::k
Repeat_TileMode, |
97 SkShader::kRepeat_
TileMode), s); | 96 SkShader::kRepeat_
TileMode, &s)); |
98 paint.setColor(SK_ColorRED); | 97 paint.setColor(SK_ColorRED); |
99 | 98 |
100 // draw the mask using the shader and a color | 99 // draw the mask using the shader and a color |
101 canvas->drawRect(SkRect::MakeXYWH(0, 0, 20, 20), paint); | 100 canvas->drawRect(SkRect::MakeXYWH(0, 0, 20, 20), paint); |
102 canvas->drawRect(SkRect::MakeXYWH(30, 0, 20, 20), paint); | 101 canvas->drawRect(SkRect::MakeXYWH(30, 0, 20, 20), paint); |
103 canvas->restore(); | 102 canvas->restore(); |
104 canvas->translate(60, 0); | 103 canvas->translate(60, 0); |
105 } | 104 } |
106 } | 105 } |
107 | 106 |
108 private: | 107 private: |
109 SkBitmap fBitmap; | 108 SkBitmap fBitmap; |
110 SkBitmap fMask; | 109 SkBitmap fMask; |
111 | 110 |
112 typedef GM INHERITED; | 111 typedef GM INHERITED; |
113 }; | 112 }; |
114 | 113 |
115 ////////////////////////////////////////////////////////////////////////////// | 114 ////////////////////////////////////////////////////////////////////////////// |
116 | 115 |
117 static GM* MyFactory(void*) { return new BitmapShaderGM; } | 116 static GM* MyFactory(void*) { return new BitmapShaderGM; } |
118 static GMRegistry reg(MyFactory); | 117 static GMRegistry reg(MyFactory); |
119 | 118 |
120 } | 119 } |
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