skia2/gm/copyTo4444.cpp

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/*
* Copyright 2013 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 "Resources.h"
#include "SkCanvas.h"
#include "SkImageDecoder.h"
#include "SkOSFile.h"
namespace skiagm {
/**
* Test copying an image from 8888 to 4444.
*/
class CopyTo4444GM : public GM {
public:
CopyTo4444GM() {}
protected:
virtual SkString onShortName() {
return SkString("copyTo4444");
}
virtual SkISize onISize() {
return SkISize::Make(1024, 512);
}
virtual void onDraw(SkCanvas* canvas) {
SkBitmap bm, bm4444;
SkString pngFilename = GetResourcePath("mandrill_512.png");
if (!SkImageDecoder::DecodeFile(pngFilename.c_str(), &bm, kN32_SkColorType,
SkImageDecoder::kDecodePixels_Mode)) {
SkDebugf("Could not decode the file. Did you forget to set the "
"resourcePath?\n");
return;
}
canvas->drawBitmap(bm, 0, 0);
SkAssertResult(bm.copyTo(&bm4444, kARGB_4444_SkColorType));
canvas->drawBitmap(bm4444, SkIntToScalar(bm.width()), 0);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new CopyTo4444GM; }
static GMRegistry reg(MyFactory);
}