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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 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 "SampleCode.h" | 8 #include "SampleCode.h" |
| 9 #include "SkView.h" | 9 #include "SkView.h" |
| 10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
| 11 #include "SkGradientShader.h" | 11 #include "SkGradientShader.h" |
| 12 #include "SkUnitMappers.h" | 12 #include "SkUnitMappers.h" |
| 13 | 13 |
| 14 static void makebm(SkBitmap* bm, SkBitmap::Config config, int w, int h) { | 14 static void makebm(SkBitmap* bm, int w, int h) { |
| 15 bm->setConfig(config, w, h); | 15 bm->allocN32Pixels(w, h); |
| 16 bm->allocPixels(); | |
| 17 bm->eraseColor(SK_ColorTRANSPARENT); | 16 bm->eraseColor(SK_ColorTRANSPARENT); |
| 18 | 17 |
| 19 SkCanvas canvas(*bm); | 18 SkCanvas canvas(*bm); |
| 20 SkScalar s = SkIntToScalar(w < h ? w : h); | 19 SkScalar s = SkIntToScalar(w < h ? w : h); |
| 21 SkPoint pts[] = { { 0, 0 }, { s, s } }; | 20 SkPoint pts[] = { { 0, 0 }, { s, s } }; |
| 22 SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE }; | 21 SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE }; |
| 23 SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; | 22 SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; |
| 24 SkPaint paint; | 23 SkPaint paint; |
| 25 | 24 |
| 26 SkUnitMapper* um = NULL; | 25 SkUnitMapper* um = NULL; |
| 27 | 26 |
| 28 um = new SkCosineMapper; | 27 um = new SkCosineMapper; |
| 29 | 28 |
| 30 SkAutoUnref au(um); | 29 SkAutoUnref au(um); |
| 31 | 30 |
| 32 paint.setDither(true); | 31 paint.setDither(true); |
| 33 paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos, | 32 paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos, |
| 34 SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode, um))->unref()
; | 33 SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode, um))->unref()
; |
| 35 canvas.drawPaint(paint); | 34 canvas.drawPaint(paint); |
| 36 } | 35 } |
| 37 | 36 |
| 38 static SkShader* MakeBitmapShader(SkShader::TileMode tx, SkShader::TileMode ty, | 37 static SkShader* MakeBitmapShader(SkShader::TileMode tx, SkShader::TileMode ty, |
| 39 int w, int h) { | 38 int w, int h) { |
| 40 static SkBitmap bmp; | 39 static SkBitmap bmp; |
| 41 if (bmp.isNull()) { | 40 if (bmp.isNull()) { |
| 42 makebm(&bmp, SkBitmap::kARGB_8888_Config, w/2, h/4); | 41 makebm(&bmp, w/2, h/4); |
| 43 } | 42 } |
| 44 return SkShader::CreateBitmapShader(bmp, tx, ty); | 43 return SkShader::CreateBitmapShader(bmp, tx, ty); |
| 45 } | 44 } |
| 46 | 45 |
| 47 /////////////////////////////////////////////////////////////////////////////// | 46 /////////////////////////////////////////////////////////////////////////////// |
| 48 | 47 |
| 49 struct GradData { | 48 struct GradData { |
| 50 int fCount; | 49 int fCount; |
| 51 const SkColor* fColors; | 50 const SkColor* fColors; |
| 52 const SkScalar* fPos; | 51 const SkScalar* fPos; |
| (...skipping 153 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 206 } | 205 } |
| 207 | 206 |
| 208 private: | 207 private: |
| 209 typedef SampleView INHERITED; | 208 typedef SampleView INHERITED; |
| 210 }; | 209 }; |
| 211 | 210 |
| 212 /////////////////////////////////////////////////////////////////////////////// | 211 /////////////////////////////////////////////////////////////////////////////// |
| 213 | 212 |
| 214 static SkView* MyFactory() { return new ShaderTextView; } | 213 static SkView* MyFactory() { return new ShaderTextView; } |
| 215 static SkViewRegister reg(MyFactory); | 214 static SkViewRegister reg(MyFactory); |
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