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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkImage_Base.h"
#include "SkImagePriv.h"
#include "SkPicture.h"
class SkImage_Picture : public SkImage_Base {
public:
SkImage_Picture(SkPicture*);
virtual ~SkImage_Picture();
virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE;
private:
SkPicture* fPicture;
typedef SkImage_Base INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
SkImage_Picture::SkImage_Picture(SkPicture* pict) : INHERITED(pict->width(), pict->height()) {
pict->endRecording();
pict->ref();
fPicture = pict;
}
SkImage_Picture::~SkImage_Picture() {
fPicture->unref();
}
void SkImage_Picture::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
const SkPaint* paint) {
SkImagePrivDrawPicture(canvas, fPicture, x, y, paint);
}
SkImage* SkNewImageFromPicture(const SkPicture* srcPicture) {
/**
* We want to snapshot the playback status of the picture, w/o affecting
* its ability to continue recording (if needed).
*
* Optimally this will shared as much data/buffers as it can with
* srcPicture, and srcPicture will perform a copy-on-write as needed if it
* needs to mutate them later on.
*/
SkAutoTUnref<SkPicture> playback(SkNEW_ARGS(SkPicture, (*srcPicture)));
return SkNEW_ARGS(SkImage_Picture, (playback));
}
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