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) 2000-2012 Torus Knot Software Ltd
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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copies of the Software, and to permit persons to whom the Software is
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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,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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        finalize                    ();

    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:
    SubRenderStateFactoryList   mFFPSubRenderStateFactoyList;       // All factories needed by the FFP.
    
};


}
}

#endif
#endif