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/*
* Copyright 2011 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 "SkCanvas.h"
#include "SkPath.h"
#include "SkSurface.h"
#include "SkPicture.h"
static void draw_content(SkCanvas* canvas) {
SkImageInfo info = canvas->imageInfo();
SkPaint paint;
paint.setAntiAlias(true);
canvas->drawCircle(SkScalarHalf(info.width()), SkScalarHalf(info.height()),
SkScalarHalf(info.width()), paint);
}
class PeekPixelsGM : public skiagm::GM {
public:
PeekPixelsGM() {}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return SkString("peekpixels");
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(360, 120);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
SkAutoTUnref<SkSurface> surface(canvas->newSurface(info));
if (surface.get()) {
SkCanvas* surfCanvas = surface->getCanvas();
draw_content(surfCanvas);
SkBitmap bitmap;
// test peekPixels
{
SkImageInfo info;
size_t rowBytes;
const void* addr = surfCanvas->peekPixels(&info, &rowBytes);
if (addr && bitmap.installPixels(info, const_cast<void*>(addr),
rowBytes, NULL, NULL)) {
canvas->drawBitmap(bitmap, 0, 0, NULL);
}
}
// test ROCanvasPixels
canvas->translate(120, 0);
SkAutoROCanvasPixels ropixels(surfCanvas);
if (ropixels.asROBitmap(&bitmap)) {
canvas->drawBitmap(bitmap, 0, 0, NULL);
}
// test Surface
canvas->translate(120, 0);
surface->draw(canvas, 0, 0, NULL);
}
}
virtual uint32_t onGetFlags() const {
// we explicitly test peekPixels and readPixels, neither of which
// return something for a picture-backed canvas, so we skip that test.
return kSkipPicture_Flag;
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return SkNEW(PeekPixelsGM); )
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