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/*
* Copyright (C) 2011 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 ProgramBinding_h
#define ProgramBinding_h
#if USE(ACCELERATED_COMPOSITING)
#include "PlatformString.h"
namespace WebCore {
class GraphicsContext3D;
class ProgramBindingBase {
public:
explicit ProgramBindingBase(GraphicsContext3D*);
~ProgramBindingBase();
bool init(const String& vertexShader, const String& fragmentShader);
unsigned program() const { return m_program; }
bool initialized() const { return m_initialized; }
protected:
unsigned loadShader(unsigned type, const String& shaderSource);
unsigned createShaderProgram(const String& vertexShaderSource, const String& fragmentShaderSource);
GraphicsContext3D* m_context;
unsigned m_program;
bool m_initialized;
};
template<class VertexShader, class FragmentShader>
class ProgramBinding : public ProgramBindingBase {
public:
explicit ProgramBinding(GraphicsContext3D* context)
: ProgramBindingBase(context)
{
if (!ProgramBindingBase::init(m_vertexShader.getShaderString(), m_fragmentShader.getShaderString()))
return;
if (!m_vertexShader.init(m_context, m_program))
return;
if (!m_fragmentShader.init(m_context, m_program))
return;
m_initialized = true;
}
const VertexShader& vertexShader() const { return m_vertexShader; }
const FragmentShader& fragmentShader() const { return m_fragmentShader; }
private:
VertexShader m_vertexShader;
FragmentShader m_fragmentShader;
};
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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