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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 "SkCanvas.h" | 9 #include "SkCanvas.h" |
10 #include "SkBlurImageFilter.h" | 10 #include "SkBlurImageFilter.h" |
11 #include "SkRSXform.h" | |
12 #include "SkSurface.h" | |
11 | 13 |
12 static void make_bm(SkBitmap* bm) { | 14 static void make_bm(SkBitmap* bm) { |
13 bm->allocN32Pixels(100, 100); | 15 bm->allocN32Pixels(100, 100); |
14 bm->eraseColor(SK_ColorBLUE); | 16 bm->eraseColor(SK_ColorBLUE); |
15 | 17 |
16 SkCanvas canvas(*bm); | 18 SkCanvas canvas(*bm); |
17 SkPaint paint; | 19 SkPaint paint; |
18 paint.setAntiAlias(true); | 20 paint.setAntiAlias(true); |
19 paint.setColor(SK_ColorRED); | 21 paint.setColor(SK_ColorRED); |
20 canvas.drawCircle(50, 50, 50, paint); | 22 canvas.drawCircle(50, 50, 50, paint); |
(...skipping 65 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
86 draw_2_bitmaps(canvas, bm, false, dx, dy, filter); | 88 draw_2_bitmaps(canvas, bm, false, dx, dy, filter); |
87 dy += bm.height() + 20; | 89 dy += bm.height() + 20; |
88 draw_2_bitmaps(canvas, bm, true, dx, dy); | 90 draw_2_bitmaps(canvas, bm, true, dx, dy); |
89 dy += bm.height() + 20; | 91 dy += bm.height() + 20; |
90 draw_2_bitmaps(canvas, bm, true, dx, dy, filter); | 92 draw_2_bitmaps(canvas, bm, true, dx, dy, filter); |
91 } | 93 } |
92 | 94 |
93 private: | 95 private: |
94 typedef GM INHERITED; | 96 typedef GM INHERITED; |
95 }; | 97 }; |
98 DEF_GM( return new SpriteBitmapGM; ) | |
96 | 99 |
97 ////////////////////////////////////////////////////////////////////////////// | 100 ////////////////////////////////////////////////////////////////////////////// |
98 | 101 |
robertphillips
2015/06/24 15:11:02
should this go in its own file ?
// This GM ...
reed1
2015/06/24 16:17:47
Done.
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99 DEF_GM( return new SpriteBitmapGM; ) | 102 class DrawAtlasGM : public skiagm::GM { |
robertphillips
2015/06/24 15:11:01
So we're not really using the entire atlas ?
reed1
2015/06/24 16:17:47
I'll add dox. I wanted explicitly to use a subset
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103 static SkImage* MakeAtlas(SkCanvas* caller, const SkRect& target) { | |
104 SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100); | |
105 SkAutoTUnref<SkSurface> surface(caller->newSurface(info)); | |
106 if (NULL == surface) { | |
107 surface.reset(SkSurface::NewRaster(info)); | |
108 } | |
109 SkCanvas* canvas = surface->getCanvas(); | |
110 canvas->clear(SK_ColorRED); | |
111 | |
112 SkPaint paint; | |
113 paint.setXfermodeMode(SkXfermode::kClear_Mode); | |
114 SkRect r(target); | |
115 r.inset(-1, -1); | |
116 canvas->drawRect(r, paint); | |
117 paint.setXfermode(NULL); | |
118 paint.setColor(SK_ColorBLUE); | |
119 paint.setAntiAlias(true); | |
120 canvas->drawOval(target, paint); | |
121 return surface->newImageSnapshot(); | |
122 } | |
123 | |
124 SkAutoTUnref<SkImage> fAtlas; | |
125 | |
126 public: | |
127 DrawAtlasGM() {} | |
128 | |
129 protected: | |
130 | |
131 SkString onShortName() override { | |
132 return SkString("draw-atlas"); | |
133 } | |
134 | |
135 SkISize onISize() override { | |
136 return SkISize::Make(640, 480); | |
137 } | |
138 | |
139 void onDraw(SkCanvas* canvas) override { | |
140 const SkRect target = { 50, 50, 80, 90 }; | |
robertphillips
2015/06/24 15:11:01
If we're going to use this pattern more widely (cr
reed1
2015/06/24 16:17:47
Perhaps so.
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141 if (NULL == fAtlas) { | |
142 fAtlas.reset(MakeAtlas(canvas, target)); | |
143 } | |
144 | |
145 const struct { | |
146 SkScalar fScale; | |
147 SkScalar fDegrees; | |
148 SkScalar fTx; | |
149 SkScalar fTy; | |
150 | |
151 void apply(SkRSXform* xform) const { | |
152 const SkScalar rad = SkDegreesToRadians(fDegrees); | |
153 xform->fSCos = fScale * SkScalarCos(rad); | |
154 xform->fSSin = fScale * SkScalarSin(rad); | |
155 xform->fTx = fTx; | |
156 xform->fTy = fTy; | |
157 } | |
158 } rec[] = { | |
159 { 1, 0, 10, 10 }, // just translate | |
160 { 2, 0, 110, 10 }, // scale + translate | |
161 { 1, 30, 210, 10 }, // rotate + translate | |
162 { 2, -30, 310, 30 }, // scale + rotate + translate | |
163 }; | |
164 | |
165 const int N = SK_ARRAY_COUNT(rec); | |
166 SkRSXform xform[N]; | |
167 SkRect tex[N]; | |
168 SkColor colors[N]; | |
169 | |
170 for (int i = 0; i < N; ++i) { | |
171 rec[i].apply(&xform[i]); | |
172 tex[i] = target; | |
robertphillips
2015/06/24 15:11:02
Do we need to 565/8888 safety these colors ?
reed1
2015/06/24 16:17:47
Perhaps, though I'm antialiasing and blending, so
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173 colors[i] = 0x80FF0000 + (i * 40 * 256); | |
174 } | |
175 | |
176 SkPaint paint; | |
177 paint.setFilterQuality(kLow_SkFilterQuality); | |
178 paint.setAntiAlias(true); | |
179 | |
180 canvas->drawAtlas(fAtlas, xform, tex, N, NULL, &paint); | |
181 canvas->translate(0, 100); | |
182 canvas->drawAtlas(fAtlas, xform, tex, colors, N, SkXfermode::kSrcIn_Mode , NULL, &paint); | |
183 } | |
184 | |
185 private: | |
186 typedef GM INHERITED; | |
187 }; | |
188 DEF_GM( return new DrawAtlasGM; ) | |
189 | |
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