src/rcrt/textures/Image.h

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#ifndef IMAGE_HXX
#define IMAGE_HXX

#include <iostream>
#include "../RGBAColor.h"

namespace rcrt
{

class Image
{
    int resX, resY;
    RGBAColor* pixel;

public:
    Image(int resX,int resY) : resX(resX),resY(resY)
    {
        pixel = new RGBAColor[resX*resY];
    }

    Image() : resX(0),resY(0)
    {
        pixel = 0;
    }

    ~Image()
    { 
        if (pixel) delete[] pixel;
    }
    
    RGBAColor* operator[](int y)
    { 
        return pixel + y * resX; 
    }

    int getWidth() const { return resX; }

    int getHeight() const { return resY; }

    RGBAColor& getPixel (int x, int y)
    { 
        if (x < 0 || y < 0)
                std::cout << "x=" << x << ", y=" << y << std::endl;

        // return pixel
        return pixel[y * resX + x]; 
    }

    void setPixel (const RGBAColor& p, int x, int y)
    { 
        // return pixel
        pixel[y * resX + x] = p; 
    }
    
    void setPixel (const RGBColor& p, int x, int y)
    { 
        // return pixel
        pixel[y * resX + x] = p; 
    }
    
    void WritePPM(const char *fileName);

    bool ReadPPM(const char *fileName);

    bool ReadPNG(const char* fileName);

    void WritePNG(const char* fileName);

    bool LoadImage(const char* fileName);
    
    void ToneMapping(float Ldmax);

};

}

#endif

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