OgreShaderProgramWriterManager.h

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/*
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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
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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
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*/
#ifndef __ShaderProgramWriterManager_H__
#define __ShaderProgramWriterManager_H__

#include "OgreSingleton.h"
#include "OgreException.h"
#include "OgreShaderProgramWriter.h"

namespace Ogre {
namespace RTShader {

class _OgreRTSSExport ProgramWriterFactory : public RTShaderSystemAlloc
{
public:
    ProgramWriterFactory() {}
    virtual ~ProgramWriterFactory() {}
    
    virtual const String& getTargetLanguage(void) const = 0;
    
    virtual ProgramWriter* create(void) = 0;
};

class _OgreRTSSExport ProgramWriterManager 
    : public Singleton<ProgramWriterManager>, public RTShaderSystemAlloc
{
public:
    typedef map<String, ProgramWriterFactory*>::type FactoryMap;
protected:
    FactoryMap mFactories;

public:
    ProgramWriterManager();
    ~ProgramWriterManager();

    void addFactory(ProgramWriterFactory* factory);
    
    void removeFactory(ProgramWriterFactory* factory);

    bool isLanguageSupported(const String& lang);

    ProgramWriter* createProgramWriter( const String& language);

    static ProgramWriterManager& getSingleton();

    static ProgramWriterManager* getSingletonPtr();
};
}
}


#endif