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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:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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 RenderSurfaceChromium_h
#define RenderSurfaceChromium_h
#if USE(ACCELERATED_COMPOSITING)
#include "FloatRect.h"
#include "IntRect.h"
#include "TextureManager.h"
#include "TransformationMatrix.h"
#include <wtf/Noncopyable.h>
namespace WebCore {
class LayerChromium;
class LayerRendererChromium;
class LayerTexture;
class RenderSurfaceChromium : public Noncopyable {
friend class LayerRendererChromium;
public:
explicit RenderSurfaceChromium(LayerChromium*);
~RenderSurfaceChromium();
bool prepareContentsTexture();
void cleanupResources();
void draw();
FloatPoint contentRectCenter() const { return FloatRect(m_contentRect).center(); }
IntRect contentRect() const { return m_contentRect; }
// Stores values that are shared between instances of this class that are
// associated with the same LayerRendererChromium (and hence the same GL
// context).
class SharedValues {
public:
explicit SharedValues(GraphicsContext3D*);
~SharedValues();
unsigned shaderProgram() const { return m_shaderProgram; }
int shaderSamplerLocation() const { return m_shaderSamplerLocation; }
int shaderMatrixLocation() const { return m_shaderMatrixLocation; }
int shaderAlphaLocation() const { return m_shaderAlphaLocation; }
bool initialized() const { return m_initialized; }
private:
GraphicsContext3D* m_context;
unsigned m_shaderProgram;
int m_shaderSamplerLocation;
int m_shaderMatrixLocation;
int m_shaderAlphaLocation;
bool m_initialized;
};
private:
LayerRendererChromium* layerRenderer();
LayerChromium* m_owningLayer;
IntRect m_contentRect;
bool m_skipsDraw;
OwnPtr<LayerTexture> m_contentsTexture;
float m_drawOpacity;
TransformationMatrix m_drawTransform;
TransformationMatrix m_originTransform;
IntRect m_scissorRect;
Vector<LayerChromium*> m_layerList;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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