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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.h"
#include "SkBitmapSource.h"
namespace skiagm {
// This GM reproduces the issue in crbug.com/472795. The SkBitmapSource image
// is shifted for high quality mode between cpu and gpu.
class BitmapSourceGM : public GM {
public:
BitmapSourceGM(const char* suffix, SkFilterQuality filter) : fSuffix(suffix), fFilter(filter) {
this->setBGColor(0xFFFFFFFF);
}
protected:
SkString onShortName() override {
SkString name("bitmapsrc2_");
name.append(fSuffix);
return name;
}
SkISize onISize() override { return SkISize::Make(256, 256); }
// Create a bitmap with high frequency vertical stripes
void onOnceBeforeDraw() override {
static const SkPMColor gColors[] = {
SK_ColorRED, SK_ColorGRAY,
SK_ColorGREEN, SK_ColorGRAY,
SK_ColorBLUE, SK_ColorGRAY,
SK_ColorCYAN, SK_ColorGRAY,
SK_ColorMAGENTA, SK_ColorGRAY,
SK_ColorYELLOW, SK_ColorGRAY,
SK_ColorWHITE, SK_ColorGRAY,
};
fBM.allocN32Pixels(kImageSize, kImageSize, true);
SkCanvas canvas(fBM);
int curColor = 0;
for (int x = 0; x < kImageSize; x += 3) {
SkRect r = SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(0),
SkIntToScalar(3), SkIntToScalar(kImageSize));
SkPaint p;
p.setColor(gColors[curColor]);
canvas.drawRect(r, p);
curColor = (curColor+1) % SK_ARRAY_COUNT(gColors);
}
}
void onDraw(SkCanvas* canvas) override {
SkRect srcRect = SkRect::MakeLTRB(0, 0,
SkIntToScalar(kImageSize), SkIntToScalar(kImageSize));
SkRect dstRect = SkRect::MakeLTRB(0.75f, 0.75f, 225.75f, 225.75f);
SkAutoTUnref<SkImageFilter> filter(SkBitmapSource::Create(fBM, srcRect, dstRect, fFilter));
SkPaint p;
p.setImageFilter(filter);
canvas->saveLayer(NULL, &p);
canvas->restore();
}
private:
static const int kImageSize = 503;
SkString fSuffix;
SkFilterQuality fFilter;
SkBitmap fBM;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return SkNEW_ARGS(BitmapSourceGM, ("none", kNone_SkFilterQuality) ); )
DEF_GM( return SkNEW_ARGS(BitmapSourceGM, ("low", kLow_SkFilterQuality) ); )
DEF_GM( return SkNEW_ARGS(BitmapSourceGM, ("med", kMedium_SkFilterQuality) ); )
DEF_GM( return SkNEW_ARGS(BitmapSourceGM, ("high", kHigh_SkFilterQuality) ); )
}
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