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- /*
- * 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 "gm/gm.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkImage.h"
- #include "include/core/SkImageFilter.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkSurface.h"
- #include "include/effects/SkImageSource.h"
- #include "include/effects/SkTileImageFilter.h"
- #include <utility>
- static sk_sp<SkImage> create_circle_texture(int size, SkColor color) {
- auto surface(SkSurface::MakeRasterN32Premul(size, size));
- SkCanvas* canvas = surface->getCanvas();
- canvas->clear(0xFF000000);
- SkPaint paint;
- paint.setColor(color);
- paint.setStrokeWidth(3);
- paint.setStyle(SkPaint::kStroke_Style);
- canvas->drawCircle(SkScalarHalf(size), SkScalarHalf(size), SkScalarHalf(size), paint);
- return surface->makeImageSnapshot();
- }
- 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 {
- fRedImage = create_circle_texture(kBitmapSize, SK_ColorRED);
- fGreenImage = create_circle_texture(kBitmapSize, SK_ColorGREEN);
- }
- void onDraw(SkCanvas* canvas) override {
- canvas->clear(SK_ColorBLACK);
- {
- SkPaint p;
- const SkRect bound = SkRect::MakeIWH(kWidth, kHeight);
- sk_sp<SkImageFilter> imageSource(SkImageSource::Make(fRedImage));
- sk_sp<SkImageFilter> tif(SkTileImageFilter::Make(
- SkRect::MakeIWH(kBitmapSize, kBitmapSize),
- SkRect::MakeIWH(kWidth, kHeight),
- std::move(imageSource)));
- p.setImageFilter(std::move(tif));
- canvas->saveLayer(&bound, &p);
- canvas->restore();
- }
- {
- SkPaint p2;
- const SkRect bound2 = SkRect::MakeIWH(kBitmapSize, kBitmapSize);
- sk_sp<SkImageFilter> tif(SkTileImageFilter::Make(
- SkRect::MakeIWH(kBitmapSize, kBitmapSize),
- SkRect::MakeIWH(kBitmapSize, kBitmapSize),
- nullptr));
- p2.setImageFilter(std::move(tif));
- canvas->translate(320, 320);
- canvas->saveLayer(&bound2, &p2);
- canvas->setMatrix(SkMatrix::I());
- SkRect bound3 = SkRect::MakeXYWH(320, 320,
- SkIntToScalar(kBitmapSize),
- SkIntToScalar(kBitmapSize));
- canvas->drawImageRect(fGreenImage.get(), bound2, bound3, nullptr,
- SkCanvas::kStrict_SrcRectConstraint);
- canvas->restore();
- }
- }
- private:
- static constexpr int kWidth = 512;
- static constexpr int kHeight = 512;
- static constexpr int kBitmapSize = 64;
- sk_sp<SkImage> fRedImage;
- sk_sp<SkImage> fGreenImage;
- typedef GM INHERITED;
- };
- //////////////////////////////////////////////////////////////////////////////
- DEF_GM(return new BigTileImageFilterGM;)
- }
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