fmalita | b5f7826 | 2014-08-06 13:07:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "gm.h" |
| 9 | |
| 10 | #include "SkPaint.h" |
| 11 | #include "SkPicture.h" |
| 12 | #include "SkPictureRecorder.h" |
| 13 | #include "SkShader.h" |
| 14 | |
| 15 | static const SkScalar kPictureSize = SK_Scalar1; |
| 16 | static const SkScalar kFillSize = 100; |
| 17 | static const unsigned kRowSize = 6; |
| 18 | |
| 19 | static const struct { |
| 20 | SkScalar x, y, w, h; |
| 21 | SkScalar offsetX, offsetY; |
| 22 | } tiles[] = { |
| 23 | { 0, 0, 1, 1, 0, 0 }, |
| 24 | { 0.5f, 0.5f, 1, 1, 0, 0 }, |
| 25 | { -0.5f, -0.5f, 1, 1, 0, 0 }, |
| 26 | |
| 27 | { 0, 0, 1.5f, 1.5f, 0, 0 }, |
| 28 | { 0.5f, 0.5f, 1.5f, 1.5f, 0, 0 }, |
| 29 | { -0.5f, -0.5f, 1.5f, 1.5f, 0, 0 }, |
| 30 | |
| 31 | { 0, 0, 0.5f, 0.5f, 0, 0 }, |
| 32 | { -0.25f, -0.25f, 0.5f, 0.5f, 0, 0 }, |
| 33 | { 0.25f, 0.25f, 0.5f, 0.5f, 0, 0 }, |
| 34 | |
| 35 | { 0, 0, 1, 1, 0.5f, 0.5f }, |
| 36 | { 0.5f, 0.5f, 1, 1, 0.5f, 0.5f }, |
| 37 | { -0.5f, -0.5f, 1, 1, 0.5f, 0.5f }, |
| 38 | |
| 39 | { 0, 0, 1.5f, 1.5f, 0.5f, 0.5f }, |
| 40 | { 0.5f, 0.5f, 1.5f, 1.5f, 0.5f, 0.5f }, |
| 41 | { -0.5f, -0.5f, 1.5f, 1.5f, 0.5f, 0.5f }, |
| 42 | |
| 43 | { 0, 0, 1.5f, 1, 0, 0 }, |
| 44 | { 0.5f, 0.5f, 1.5f, 1, 0, 0 }, |
| 45 | { -0.5f, -0.5f, 1.5f, 1, 0, 0 }, |
| 46 | |
| 47 | { 0, 0, 0.5f, 1, 0, 0 }, |
| 48 | { -0.25f, -0.25f, 0.5f, 1, 0, 0 }, |
| 49 | { 0.25f, 0.25f, 0.5f, 1, 0, 0 }, |
| 50 | |
| 51 | { 0, 0, 1, 1.5f, 0, 0 }, |
| 52 | { 0.5f, 0.5f, 1, 1.5f, 0, 0 }, |
| 53 | { -0.5f, -0.5f, 1, 1.5f, 0, 0 }, |
| 54 | |
| 55 | { 0, 0, 1, 0.5f, 0, 0 }, |
| 56 | { -0.25f, -0.25f, 1, 0.5f, 0, 0 }, |
| 57 | { 0.25f, 0.25f, 1, 0.5f, 0, 0 }, |
| 58 | }; |
| 59 | |
| 60 | class PictureShaderTileGM : public skiagm::GM { |
| 61 | public: |
| 62 | PictureShaderTileGM() { |
| 63 | SkPictureRecorder recorder; |
robertphillips | a8d7f0b | 2014-08-29 08:03:56 -0700 | [diff] [blame] | 64 | SkCanvas* pictureCanvas = recorder.beginRecording(kPictureSize, kPictureSize, NULL, 0); |
fmalita | b5f7826 | 2014-08-06 13:07:15 -0700 | [diff] [blame] | 65 | drawScene(pictureCanvas, kPictureSize); |
| 66 | SkAutoTUnref<SkPicture> picture(recorder.endRecording()); |
| 67 | |
| 68 | for (unsigned i = 0; i < SK_ARRAY_COUNT(tiles); ++i) { |
| 69 | SkRect tile = SkRect::MakeXYWH(tiles[i].x * kPictureSize, |
| 70 | tiles[i].y * kPictureSize, |
| 71 | tiles[i].w * kPictureSize, |
| 72 | tiles[i].h * kPictureSize); |
| 73 | SkMatrix localMatrix; |
| 74 | localMatrix.setTranslate(tiles[i].offsetX * kPictureSize, |
| 75 | tiles[i].offsetY * kPictureSize); |
| 76 | localMatrix.postScale(kFillSize / (2 * kPictureSize), |
| 77 | kFillSize / (2 * kPictureSize)); |
| 78 | fShaders[i].reset(SkShader::CreatePictureShader(picture, |
| 79 | SkShader::kRepeat_TileMode, |
| 80 | SkShader::kRepeat_TileMode, |
| 81 | &localMatrix, |
| 82 | &tile)); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | protected: |
| 87 | virtual uint32_t onGetFlags() const SK_OVERRIDE { |
| 88 | return kSkipTiled_Flag; |
| 89 | } |
| 90 | |
| 91 | virtual SkString onShortName() SK_OVERRIDE { |
| 92 | return SkString("pictureshadertile"); |
| 93 | } |
| 94 | |
| 95 | virtual SkISize onISize() SK_OVERRIDE { |
| 96 | return SkISize::Make(800, 600); |
| 97 | } |
| 98 | |
| 99 | virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 100 | canvas->clear(SK_ColorBLACK); |
| 101 | |
| 102 | SkPaint paint; |
| 103 | paint.setStyle(SkPaint::kFill_Style); |
| 104 | |
| 105 | for (unsigned i = 0; i < SK_ARRAY_COUNT(fShaders); ++i) { |
| 106 | paint.setShader(fShaders[i]); |
| 107 | |
| 108 | canvas->save(); |
| 109 | canvas->translate((i % kRowSize) * kFillSize * 1.1f, |
| 110 | (i / kRowSize) * kFillSize * 1.1f); |
| 111 | canvas->drawRect(SkRect::MakeWH(kFillSize, kFillSize), paint); |
| 112 | canvas->restore(); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | private: |
| 117 | void drawScene(SkCanvas* canvas, SkScalar pictureSize) { |
| 118 | canvas->clear(SK_ColorWHITE); |
| 119 | |
| 120 | SkPaint paint; |
| 121 | paint.setColor(SK_ColorGREEN); |
| 122 | paint.setStyle(SkPaint::kFill_Style); |
| 123 | paint.setAntiAlias(true); |
| 124 | |
| 125 | canvas->drawCircle(pictureSize / 4, pictureSize / 4, pictureSize / 4, paint); |
| 126 | canvas->drawRect(SkRect::MakeXYWH(pictureSize / 2, pictureSize / 2, |
| 127 | pictureSize / 2, pictureSize / 2), paint); |
| 128 | |
| 129 | paint.setColor(SK_ColorRED); |
| 130 | canvas->drawLine(pictureSize / 2, pictureSize * 1 / 3, |
| 131 | pictureSize / 2, pictureSize * 2 / 3, paint); |
| 132 | canvas->drawLine(pictureSize * 1 / 3, pictureSize / 2, |
| 133 | pictureSize * 2 / 3, pictureSize / 2, paint); |
| 134 | |
| 135 | paint.setColor(SK_ColorBLACK); |
| 136 | paint.setStyle(SkPaint::kStroke_Style); |
| 137 | canvas->drawRect(SkRect::MakeWH(pictureSize, pictureSize), paint); |
| 138 | } |
| 139 | |
| 140 | SkAutoTUnref<SkShader> fShaders[SK_ARRAY_COUNT(tiles)]; |
| 141 | |
| 142 | typedef GM INHERITED; |
| 143 | }; |
| 144 | |
| 145 | DEF_GM( return SkNEW(PictureShaderTileGM); ) |