source: GTP/branches/IllumWPdeliver2008dec/IlluminationWP/demos/Standalone/Hierarchical Systems Demo [OpenGL]/RESOURCES/include/RttRes/RenderTexture.h @ 3255

#pragma once
#include "pbuffer.h"
#include <gl/glext.h>

class RenderTexture
{
public:
        RenderTexture(void);
        ~RenderTexture(void);
private:
        GLenum m_textype;       
        PBuffer *m_pBuffer;
        int width;
        int height;
        GLuint m_pbufferColorTextureID;
        GLuint m_pbufferDepthTextureID;
        GLuint m_pbufferAux1ID;
        GLuint m_pbufferAux2ID;
        GLuint m_pbufferAux3ID;
        GLuint m_pbufferAux4ID;

public:
        int Initialize(int width, int height,const char *strMode, bool rect=true, bool linearfilter=false);
        int EnableTarget(void);
        int DisableTarget(void);

        void EnablewithColorRelease(){ReleaseColorBuffer();EnableTarget();}
        void DisablewithColorBind(){DisableTarget();BindColorBuffer();}

        int BindColorBuffer(){glBindTexture(m_textype, m_pbufferColorTextureID);
                                                        return m_pBuffer->Bind(WGL_FRONT_LEFT_ARB);}
        int BindDepthBuffer(){glBindTexture(m_textype, m_pbufferDepthTextureID);
                                                        return m_pBuffer->Bind(WGL_DEPTH_COMPONENT_NV);}
        void BindAUXBuffers(){glBindTexture(m_textype, m_pbufferAux1ID);
                                                                        m_pBuffer->Bind(WGL_AUX0_ARB);
                                                                glBindTexture(m_textype, m_pbufferAux2ID);
                                                                        m_pBuffer->Bind(WGL_AUX1_ARB);
                                                                glBindTexture(m_textype, m_pbufferAux3ID);
                                                                        m_pBuffer->Bind(WGL_AUX2_ARB);
                                                                glBindTexture(m_textype, m_pbufferAux4ID);
                                                                        m_pBuffer->Bind(WGL_AUX3_ARB);}
        int ReleaseColorBuffer(){glBindTexture(m_textype, m_pbufferColorTextureID);
                                                                return m_pBuffer->Release(WGL_FRONT_LEFT_ARB);}
        int ReleaseDepthBuffer(){glBindTexture(m_textype, m_pbufferDepthTextureID);
                                                                return m_pBuffer->Release(WGL_DEPTH_COMPONENT_NV);}
        void ReleaseAUXBuffers(){glBindTexture(m_textype, m_pbufferAux1ID);
                                                                        m_pBuffer->Release(WGL_AUX0_ARB);
                                                                glBindTexture(m_textype, m_pbufferAux2ID);
                                                                        m_pBuffer->Release(WGL_AUX1_ARB);
                                                                glBindTexture(m_textype, m_pbufferAux3ID);
                                                                        m_pBuffer->Release(WGL_AUX2_ARB);
                                                                glBindTexture(m_textype, m_pbufferAux4ID);
                                                                        m_pBuffer->Release(WGL_AUX3_ARB);}

        GLuint getColorTextureID(void);
        GLuint getDepthTextureID(void);

        GLuint getAuxTextureID(int i)
        {
                switch(i)
                {
                case 0:
                        return m_pbufferAux1ID;
                        break;
                case 1:
                        return m_pbufferAux2ID;
                        break;
                case 2:
                        return m_pbufferAux3ID;
                        break;
                case 3:
                        return m_pbufferAux4ID;
                        break;
                }
        }
};