skia2/gm/bigtileimagefilter.cpp
2015-06-08 06:21:14 -07:00

77 lines
1.9 KiB
C++

/*
* 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"
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 {
fBitmap.allocN32Pixels(kBitmapSize, kBitmapSize);
SkCanvas canvas(fBitmap);
canvas.clear(0xFF000000);
SkPaint paint;
paint.setColor(SK_ColorRED);
paint.setStrokeWidth(3);
paint.setStyle(SkPaint::kStroke_Style);
canvas.drawCircle(SkScalarHalf(kBitmapSize), SkScalarHalf(kBitmapSize),
SkScalarHalf(kBitmapSize), paint);
}
void onDraw(SkCanvas* canvas) override {
canvas->clear(SK_ColorBLACK);
SkPaint p;
SkAutoTUnref<SkBitmapSource> bms(SkBitmapSource::Create(fBitmap));
SkAutoTUnref<SkTileImageFilter> tif(SkTileImageFilter::Create(
SkRect::MakeWH(SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize)),
SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight)),
bms));
p.setImageFilter(tif);
SkRect bound = SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
canvas->saveLayer(&bound, &p);
canvas->restore();
}
private:
static const int kWidth = 512;
static const int kHeight = 512;
static const int kBitmapSize = 64;
SkBitmap fBitmap;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return SkNEW(BigTileImageFilterGM); )
}