OgreShaderFFPRenderStateBuilder.h

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/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org

Copyright (c) 2000-2014 Torus Knot Software Ltd
Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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THE SOFTWARE.
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*/
#ifndef _ShaderFFPRenderStateBuilder_
#define _ShaderFFPRenderStateBuilder_

#include "OgreShaderPrerequisites.h"
#ifdef RTSHADER_SYSTEM_BUILD_CORE_SHADERS
#include "OgreSingleton.h"
#include "OgreShaderGenerator.h"

namespace Ogre {
namespace RTShader {


class _OgreRTSSExport FFPRenderStateBuilder : public Singleton<FFPRenderStateBuilder>, public RTShaderSystemAlloc
{
// Interface.
public:
    FFPRenderStateBuilder();
    ~FFPRenderStateBuilder();

    static FFPRenderStateBuilder& getSingleton();   

    static FFPRenderStateBuilder* getSingletonPtr();


    bool initialize();

    void destroy();

    void buildRenderState(ShaderGenerator::SGPass* sgPass, TargetRenderState* renderState);

    
// Protected types.
protected:
    typedef vector<SubRenderStateFactory*>::type                SubRenderStateFactoryList;
    typedef SubRenderStateFactoryList::iterator                 SubRenderStateFactoryIterator;
    typedef SubRenderStateFactoryList::const_iterator           SubRenderStateFactoryConstIterator;

// Protected methods.
protected:

    void buildFFPSubRenderState(int subRenderStateOrder, const String& subRenderStateType, 
                                                 ShaderGenerator::SGPass* sgPass, TargetRenderState* renderState);
    
    void resolveColourStageFlags(ShaderGenerator::SGPass* sgPass, TargetRenderState* renderState);


// Attributes.
protected:
    // All factories needed by the FFP.
    SubRenderStateFactoryList mFFPSubRenderStateFactoryList;
    
};


}
}

#endif
#endif