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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef WebGLSharedWebGraphicsContext3D_h
#define WebGLSharedWebGraphicsContext3D_h
#include "wtf/Forward.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"
namespace blink {
class WebGraphicsContext3D;
class DrawingBuffer;
#if ENABLE(OILPAN)
// The attached WebGLContextObjects are finalized using the
// blink::WebGraphicsContext3D object of this object's DrawingBuffer.
// Naturally the DrawingBuffer must then be kept alive until those
// finalizers have run. With Oilpan, accomplish that by having the
// WebGLContextObjects keep a RefPtr<> to an off-heap object that
// safely handles the eventual release of the underlying
// DrawingBuffer.
class WebGLSharedWebGraphicsContext3D final : public RefCounted<WebGLSharedWebGraphicsContext3D> {
public:
static PassRefPtr<WebGLSharedWebGraphicsContext3D> create(PassRefPtr<DrawingBuffer>);
~WebGLSharedWebGraphicsContext3D();
// Disposing and updating the underlying DrawingBuffer;
// needed when handling loss and restoration of graphics contexts.
void dispose();
void update(PassRefPtr<DrawingBuffer>);
DrawingBuffer* drawingBuffer() const;
blink::WebGraphicsContext3D* webContext() const;
private:
explicit WebGLSharedWebGraphicsContext3D(PassRefPtr<DrawingBuffer>);
RefPtr<DrawingBuffer> m_buffer;
};
#endif
}
#endif // WebGLSharedWebGraphicsContext3D_h
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