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| 1 /* |
| 2 * Copyright 2015 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 #include "SkCanvas.h" |
| 10 #include "SkImage.h" |
| 11 #include "SkPictureRecorder.h" |
| 12 |
| 13 #if SK_SUPPORT_GPU |
| 14 #include "GrContext.h" |
| 15 #endif |
| 16 |
| 17 static void draw_something(SkCanvas* canvas, const SkRect& bounds) { |
| 18 SkPaint paint; |
| 19 paint.setAntiAlias(true); |
| 20 paint.setColor(SK_ColorRED); |
| 21 paint.setStyle(SkPaint::kStroke_Style); |
| 22 paint.setStrokeWidth(10); |
| 23 canvas->drawRect(bounds, paint); |
| 24 paint.setStyle(SkPaint::kFill_Style); |
| 25 paint.setColor(SK_ColorBLUE); |
| 26 canvas->drawOval(bounds, paint); |
| 27 } |
| 28 |
| 29 /* |
| 30 * Exercise drawing pictures inside an image, showing that the image version is
pixelated |
| 31 * (correctly) when it is inside an image. |
| 32 */ |
| 33 class ImagePictGM : public skiagm::GM { |
| 34 SkAutoTUnref<SkPicture> fPicture; |
| 35 SkAutoTUnref<SkImage> fImage0; |
| 36 SkAutoTUnref<SkImage> fImage1; |
| 37 public: |
| 38 ImagePictGM() {} |
| 39 |
| 40 protected: |
| 41 SkString onShortName() override { |
| 42 return SkString("image-picture"); |
| 43 } |
| 44 |
| 45 SkISize onISize() override { |
| 46 return SkISize::Make(850, 450); |
| 47 } |
| 48 |
| 49 void onOnceBeforeDraw() override { |
| 50 const SkRect bounds = SkRect::MakeXYWH(100, 100, 100, 100); |
| 51 SkPictureRecorder recorder; |
| 52 draw_something(recorder.beginRecording(bounds), bounds); |
| 53 fPicture.reset(recorder.endRecording()); |
| 54 |
| 55 // extract enough just for the oval. |
| 56 const SkISize size = SkISize::Make(100, 100); |
| 57 |
| 58 SkMatrix matrix; |
| 59 matrix.setTranslate(-100, -100); |
| 60 fImage0.reset(SkImage::NewFromPicture(fPicture, size, &matrix, nullptr))
; |
| 61 matrix.postTranslate(-50, -50); |
| 62 matrix.postRotate(45); |
| 63 matrix.postTranslate(50, 50); |
| 64 fImage1.reset(SkImage::NewFromPicture(fPicture, size, &matrix, nullptr))
; |
| 65 } |
| 66 |
| 67 void drawSet(SkCanvas* canvas) const { |
| 68 SkMatrix matrix = SkMatrix::MakeTrans(-100, -100); |
| 69 canvas->drawPicture(fPicture, &matrix, nullptr); |
| 70 canvas->drawImage(fImage0, 150, 0); |
| 71 canvas->drawImage(fImage1, 300, 0); |
| 72 } |
| 73 |
| 74 void onDraw(SkCanvas* canvas) override { |
| 75 canvas->translate(20, 20); |
| 76 |
| 77 this->drawSet(canvas); |
| 78 |
| 79 canvas->save(); |
| 80 canvas->translate(0, 130); |
| 81 canvas->scale(0.25f, 0.25f); |
| 82 this->drawSet(canvas); |
| 83 canvas->restore(); |
| 84 |
| 85 canvas->save(); |
| 86 canvas->translate(0, 200); |
| 87 canvas->scale(2, 2); |
| 88 this->drawSet(canvas); |
| 89 canvas->restore(); |
| 90 } |
| 91 |
| 92 private: |
| 93 typedef skiagm::GM INHERITED; |
| 94 }; |
| 95 DEF_GM( return new ImagePictGM; ) |
| 96 |
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