D:/SoftwareEntwicklung/C++/HLC/Tools/SoftPixelEngine/repository/sources/RenderSystem/DeferredRenderer/spGBuffer.hpp

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/*
 * GBuffer header
 * 
 * This file is part of the "SoftPixel Engine" (Copyright (c) 2008 by Lukas Hermanns)
 * See "SoftPixelEngine.hpp" for license information.
 */

#ifndef __SP_GBUFFER_H__
#define __SP_GBUFFER_H__


#include "Base/spStandard.hpp"

#if defined(SP_COMPILE_WITH_DEFERREDRENDERER)


#include "RenderSystem/spTextureBase.hpp"


namespace sp
{
namespace video
{


class SP_EXPORT GBuffer
{
    
    public:
        
        /* === Enumerations === */
        
        enum ERenderTargets
        {
            RENDERTARGET_DIFFUSE_AND_SPECULAR = 0,  
            RENDERTARGET_NORMAL_AND_DEPTH,          
            
            RENDERTARGET_ILLUMINATION,              
            
            RENDERTARGET_COUNT                      
        };
        
        /* === Constructor & destructor === */
        
        GBuffer();
        virtual ~GBuffer();
        
        /* === Functions === */
        
        bool createGBuffer(
            const dim::size2di &Resolution, s32 MultiSampling = 0, bool UseIllumination = false
        );
        void deleteGBuffer();
        
        void bindRenderTargets();
        
        void drawDeferredShading();
        
        /* === Inline functions === */
        
        inline const dim::size2di& getResolution() const
        {
            return Resolution_;
        }
        
        inline Texture* getTexture(const ERenderTargets Type)
        {
            return Type < RENDERTARGET_COUNT ? RenderTargets_[Type] : 0;
        }
        
        inline bool useIllumination() const
        {
            return UseIllumination_;
        }
        
    private:
        
        /* === Functions === */
        
        bool setupMultiRenderTargets(s32 MultiSampling);
        
        /* === Members === */
        
        dim::size2di Resolution_;
        
        Texture* RenderTargets_[RENDERTARGET_COUNT];
        
        bool UseIllumination_;
        
};


} // /namespace video

} // /namespace sp


#endif

#endif



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