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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 SkImage* create_circle_texture(int size, SkColor color) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(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->newImageSnapshot();
}
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.reset(create_circle_texture(kBitmapSize, SK_ColorRED));
fGreenImage.reset(create_circle_texture(kBitmapSize, SK_ColorGREEN));
}
void onDraw(SkCanvas* canvas) override {
canvas->clear(SK_ColorBLACK);
{
SkPaint p;
SkRect bound = SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
SkAutoTUnref<SkImageFilter> imageSource(SkImageSource::Create(fRedImage));
SkAutoTUnref<SkImageFilter> tif(SkTileImageFilter::Create(
SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)),
SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight)),
imageSource));
p.setImageFilter(tif);
canvas->saveLayer(&bound, &p);
canvas->restore();
}
{
SkPaint p2;
SkRect bound2 = SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize));
SkAutoTUnref<SkImageFilter> tif2(SkTileImageFilter::Create(
SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)),
SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)),
nullptr));
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->drawImageRect(fGreenImage, bound2, bound3, nullptr,
SkCanvas::kStrict_SrcRectConstraint);
canvas->restore();
}
}
private:
static const int kWidth = 512;
static const int kHeight = 512;
static const int kBitmapSize = 64;
SkAutoTUnref<SkImage> fRedImage;
SkAutoTUnref<SkImage> fGreenImage;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new BigTileImageFilterGM;)
}
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