/******************************************************************/
/* Image.h                                                        */
/* -----------------------                                        */
/*                                                                */
/* The file defines an image class that stores a color buffer.    */
/*     This is particularly useful for offline rendering, and     */
/*     the class includes a very simple routine to save the image */
/*     as a PPM file.                                             */
/*                                                                */
/* Chris Wyman (10/26/2006)                                       */
/******************************************************************/

#ifndef IMAGE_H
#define IMAGE_H 1

#include "Color.h"

/* An image is a collection of xres*yres Colors.
**
** Beware!!  This allocates memory -> not thread-safe!  However,
**    presumably, you allocate this ONCE at the beginning of the
**    execution.  However, if this is not the case, you should
**    fix this!
*/
class Image 
{
    Color** image;
    int xres, yres;
public:
    Image(int xres, int yres);
    ~Image();
    inline int GetXRes() const 
	{
		return xres;
    }
    inline int GetYRes() const 
	{
		return yres;
    }
    inline Color& operator()(int x, int y) 
	{
		return image[y][x];
	}
    void Save(char* file, float gamma=1.0f);
};

#endif