| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkBitmapSource.h" |
| #include "SkTileImageFilter.h" |
| #include "gm.h" |
| |
| static void create_circle_texture(SkBitmap* bm, SkColor color) { |
| SkCanvas canvas(*bm); |
| canvas.clear(0xFF000000); |
| |
| SkPaint paint; |
| paint.setColor(color); |
| paint.setStrokeWidth(3); |
| paint.setStyle(SkPaint::kStroke_Style); |
| |
| canvas.drawCircle(SkScalarHalf(bm->width()), SkScalarHalf(bm->height()), |
| SkScalarHalf(bm->width()), paint); |
| } |
| |
| namespace skiagm { |
| |
| class BigTileImageFilterGM : public GM { |
| public: |
| BigTileImageFilterGM() { |
| this->setBGColor(0xFF000000); |
| } |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("bigtileimagefilter"); |
| } |
| |
| SkISize onISize() override{ |
| return SkISize::Make(kWidth, kHeight); |
| } |
| |
| void onOnceBeforeDraw() override { |
| fRedBitmap.allocN32Pixels(kBitmapSize, kBitmapSize); |
| create_circle_texture(&fRedBitmap, SK_ColorRED); |
| |
| fGreenBitmap.allocN32Pixels(kBitmapSize, kBitmapSize); |
| create_circle_texture(&fGreenBitmap, SK_ColorGREEN); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| canvas->clear(SK_ColorBLACK); |
| |
| { |
| SkPaint p; |
| |
| SkRect bound = SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight)); |
| SkAutoTUnref<SkBitmapSource> bms(SkBitmapSource::Create(fRedBitmap)); |
| SkAutoTUnref<SkTileImageFilter> tif(SkTileImageFilter::Create( |
| SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)), |
| SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight)), |
| bms)); |
| p.setImageFilter(tif); |
| |
| canvas->saveLayer(&bound, &p); |
| canvas->restore(); |
| } |
| |
| { |
| SkPaint p2; |
| |
| SkRect bound2 = SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)); |
| |
| SkAutoTUnref<SkTileImageFilter> tif2(SkTileImageFilter::Create( |
| SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)), |
| SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)), |
| NULL)); |
| p2.setImageFilter(tif2); |
| |
| canvas->translate(320, 320); |
| canvas->saveLayer(&bound2, &p2); |
| canvas->setMatrix(SkMatrix::I()); |
| |
| SkRect bound3 = SkRect::MakeXYWH(320, 320, |
| SkIntToScalar(kBitmapSize), |
| SkIntToScalar(kBitmapSize)); |
| canvas->drawBitmapRect(fGreenBitmap, &bound2, bound3, NULL, |
| SkCanvas::kStrict_SrcRectConstraint); |
| canvas->restore(); |
| } |
| } |
| |
| private: |
| static const int kWidth = 512; |
| static const int kHeight = 512; |
| static const int kBitmapSize = 64; |
| |
| SkBitmap fRedBitmap; |
| SkBitmap fGreenBitmap; |
| |
| typedef GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM( return SkNEW(BigTileImageFilterGM); ) |
| |
| } |