OgreGLPBRenderTexture.h

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/*
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This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
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Copyright (c) 2000-2014 Torus Knot Software Ltd

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*/

#ifndef __GLPBRENDERTEXTURE_H__
#define __GLPBRENDERTEXTURE_H__

#include "OgreGLRenderTexture.h"
#include "OgreGLPBuffer.h"
namespace Ogre {
    
    class GLPBRTTManager;
    class _OgreGLExport GLPBRenderTexture: public GLRenderTexture
    {
    public:
        GLPBRenderTexture(GLPBRTTManager *manager, const String &name, const GLSurfaceDesc &target, bool writeGamma, uint fsaa);
        virtual ~GLPBRenderTexture();
        
        virtual void getCustomAttribute(const String& name, void* pData);
    protected:
        GLPBRTTManager *mManager;
        PixelComponentType mPBFormat;
    };
        
    class _OgreGLExport GLPBRTTManager: public GLRTTManager
    {
    public:
        GLPBRTTManager(GLSupport *support, RenderTarget *mainwindow);
        virtual ~GLPBRTTManager();
        
        virtual RenderTexture *createRenderTexture(const String &name, 
            const GLSurfaceDesc &target, bool writeGamma, uint fsaa);
        
        virtual bool checkFormat(PixelFormat format);
        
        virtual void bind(RenderTarget *target);
        
        virtual void unbind(RenderTarget *target);
        
        void requestPBuffer(PixelComponentType ctype, uint32 width, uint32 height);
        
        void releasePBuffer(PixelComponentType ctype);
        
        GLContext *getContextFor(PixelComponentType ctype, uint32 width, uint32 height);
    protected:
        GLSupport *mSupport;
        RenderTarget *mMainWindow;
        GLContext *mMainContext;
        struct PBRef
        {
            PBRef(): pb(0),refcount(0) {}
            GLPBuffer* pb;
            size_t refcount;
        };
        PBRef mPBuffers[PCT_COUNT];
    };
}

#endif // __GLPBRENDERTEXTURE_H__