cloudy-raytracer/common/texture.h

#ifndef TEXTURE_H
#define TEXTURE_H

#include "common/CImg.h"
#include "common/color.h"
#include "common/vector2d.h"

using namespace cimg_library;

class Texture {
public:
    // Constructor
    Texture(int width, int height);
    Texture(char const *fileName);

    // Image functions
    inline void resize(int width, int height) { this->image_.resize(width, height, 1, 3); }
    bool load(char const *fileName);
    bool save(char const *fileName) const;

    // Get
    inline bool isNull() const { return this->image_.is_empty(); }
    inline int width() const { return this->image_.width(); }
    inline int height() const { return this->image_.height(); }
    Color getPixelAt(int x, int y) const;

    // Set
    void setPixelAt(int x, int y, Color const &color);
    void setTexture(CImg<float> image);


    // Color functions
    Color color(float u, float v, bool interpolate = true) const;
    Color color(Vector2d const &surfacePosition, bool interpolate = true) const;

    CImg<float>& getImage();

private:
    CImg<float> image_;
};

#endif