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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 "SkImageSource.h"
#include "SkSurface.h"
#include "SkTileImageFilter.h"
#include "gm.h"
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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