skia2/gm/imagesource2.cpp
fmalita 5598b63cd2 Convert unit tests, GMs from SkBitmapSource to SkImagesource
This removes SkBitmapSource clients within Skia.

http://crrev.com/1334173004 does the same for Blink, so we should be
able to remove SkBitmapSource in a follow-up.

R=reed@google.com,robertphillips@google.com,mtklein@google.com

Review URL: https://codereview.chromium.org/1343123002
2015-09-15 11:26:14 -07:00

94 lines
2.8 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 "gm.h"
#include "SkImage.h"
#include "SkImageSource.h"
#include "SkSurface.h"
namespace skiagm {
// This GM reproduces the issue in crbug.com/472795. The SkImageSource image
// is shifted for high quality mode between cpu and gpu.
class ImageSourceGM : public GM {
public:
ImageSourceGM(const char* suffix, SkFilterQuality filter) : fSuffix(suffix), fFilter(filter) {
this->setBGColor(0xFFFFFFFF);
}
protected:
SkString onShortName() override {
SkString name("imagesrc2_");
name.append(fSuffix);
return name;
}
SkISize onISize() override { return SkISize::Make(256, 256); }
// Create an image 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,
};
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(kImageSize, kImageSize));
SkCanvas* canvas = surface->getCanvas();
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);
}
fImage.reset(surface->newImageSnapshot());
}
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(
SkImageSource::Create(fImage, srcRect, dstRect, fFilter));
SkPaint p;
p.setImageFilter(filter);
canvas->saveLayer(nullptr, &p);
canvas->restore();
}
private:
static const int kImageSize = 503;
SkString fSuffix;
SkFilterQuality fFilter;
SkAutoTUnref<SkImage> fImage;
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ImageSourceGM("none", kNone_SkFilterQuality);)
DEF_GM(return new ImageSourceGM("low", kLow_SkFilterQuality);)
DEF_GM(return new ImageSourceGM("med", kMedium_SkFilterQuality);)
DEF_GM(return new ImageSourceGM("high", kHigh_SkFilterQuality);)
}