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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CanvasLayerChromium_h
#define CanvasLayerChromium_h
#if USE(ACCELERATED_COMPOSITING)
#include "LayerChromium.h"
namespace WebCore {
class GraphicsContext3D;
// A Layer containing a WebGL or accelerated 2d canvas
class CanvasLayerChromium : public LayerChromium {
public:
static PassRefPtr<CanvasLayerChromium> create(GraphicsLayerChromium* owner = 0);
virtual bool drawsContent() { return m_context; }
virtual bool ownsTexture() { return true; }
virtual void updateTextureContents(unsigned);
virtual unsigned textureId();
virtual unsigned shaderProgramId() { return m_shaderProgramId; }
void setContext(const GraphicsContext3D* context);
static void setShaderProgramId(unsigned shaderProgramId) { m_shaderProgramId = shaderProgramId; }
class PrepareTextureCallback : public Noncopyable {
public:
virtual void willPrepareTexture() = 0;
};
void setPrepareTextureCallback(PassOwnPtr<PrepareTextureCallback> callback) { m_prepareTextureCallback = callback; }
private:
explicit CanvasLayerChromium(GraphicsLayerChromium* owner);
GraphicsContext3D* m_context;
unsigned m_textureId;
bool m_textureChanged;
OwnPtr<PrepareTextureCallback> m_prepareTextureCallback;
static unsigned m_shaderProgramId;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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