Image.h

// 	Copyright (C) Kevin Suffern 2000-2007.
// 	Copyright (C) Stefan Brumme 2005.
// 	Copyright (C) Sverre Kvaale 2007.
//	This C++ code is for non-commercial purposes only.
//	This C++ code is licensed under the GNU General Public License Version 2.
//	See the file COPYING.txt for the full license.

// This is not a texture
// The Image class stores an image in PPM format
// This is used for image based textures, including ramp textures such as marble and sandstone
// I originally chose the PPM format because it's simple to parse

#pragma once

#include <vector>
#include "ColorRGB.h"
using namespace std;

//--------------------------------------------------------------------- class Image

class Image
{
public:
	Image(void);

	Image(const Image &image);

	Image &
	operator=(const Image &image);

	~Image(void);

	void
	read_ppm_file(const char *file_name);

	int
	get_hres(void);

	int
	get_vres(void);

	ColorRGB
	get_color(int &index);

	ColorRGB
	get_color(const int row, const int col) const;

private:
	int hres; // horizontal resolution of image
	int vres; // vertical resolution of image
	vector<ColorRGB> pixels;
};

//--------------------------------------------------------------------- get_hres

inline int
Image::get_hres(void)
{
	return (hres);
}

//--------------------------------------------------------------------- get_vres

inline int
Image::get_vres(void)
{
	return (vres);
}