source: GTP/trunk/App/Demos/Illum/Standalone/Glow [DirectX]/ToneMap.h @ 846

#pragma once

#include "QuadRendering.h"
#include "DXUT.h"
#include <D3dx9math.h>

class ToneMap
{
private:
        // Source HDR texture
        LPDIRECT3DTEXTURE9 sourceTexture;
        LPDIRECT3DSURFACE9 sourceTextureSurface;

        // Target HDR Texture
        LPDIRECT3DTEXTURE9 myRenderTexture;
        LPDIRECT3DSURFACE9 myRenderTextureSurface;

        // Luminance Texture
        LPDIRECT3DTEXTURE9 myLuminanceTexture;
        LPDIRECT3DSURFACE9 myLuminanceTextureSurface;

        // Luminance Texture
        LPDIRECT3DTEXTURE9 myAverageLuminanceTexture[2];
        LPDIRECT3DSURFACE9 myAverageLuminanceTextureSurface[2];

        // ToneMapping Effect
        LPD3DXEFFECT myEffect;

        D3DVERTEX_1 rttVertices[3];
        LPDIRECT3DSURFACE9 rttDepthSurface;
        LPDIRECT3DSURFACE9 rttDepthSurface_small;
        IDirect3DVertexDeclaration9* textureDecl;
        LPDIRECT3DVERTEXBUFFER9 pQuadVB;

        LPDIRECT3DSURFACE9 backBuffer;
        LPDIRECT3DSURFACE9 backBufferDepthSurface;

        IDirect3DDevice9* pd3dDevice;

        // Gain
        float Gain;
        float Passes;

public:
        ToneMap(void);
        ~ToneMap(void);

        HRESULT Init( IDirect3DDevice9* pd3dDevice, LPDIRECT3DTEXTURE9 sourceTexture, LPDIRECT3DSURFACE9 targetTextureSurface);
        void SetSource(LPDIRECT3DTEXTURE9 sourceTexture);
        void SetGain(float gain);
        void SetPasses(float pass);
        void Destroy();
        void Map();
};