//
// Colour class
//
// Copyright (C) J. Belson	2000.05.20
//
// $Author: jon $	:	$Date: 2003/10/11 18:11:00 $
//

#ifndef _FCOLOUR_H_
#define _FCOLOUR_H_

#include <iostream>
#include <cmath>
#include <cstdio>

#include "types.h"
#include "vector3d.h"


/**
 * Class for representing and manipulating colours
 */
class fcolour {

private:


public:
	fcolour(float red, float green, float blue, float transparency=1.0);
	fcolour(uint32 col);
	fcolour() { r = 1.0; g = 1.0; b = 1.0; alpha = 1.0; };

	// Range is 0.0 - 1.0
	float r, g, b;
	float alpha;

	// Clamp to range 0.0 - 1.0
	void clamp(void);

	// Normalise r/g/b to range 0.0 - 1.0 by desaturation
	void normalise(void);

	fcolour blend(fcolour& c);

	fcolour operator+(fcolour c);
	fcolour operator-(fcolour c);
	fcolour operator*(float f);
	fcolour operator/(float f);
	fcolour operator*(fcolour c);

	static void exposure(fcolour& c, float exp=1.0);

	friend std::ostream& operator<<(std::ostream& str, fcolour& c);

	static uint32 make_rgb32(uint8 r, uint8 g, uint8 b);

	// Convert colour to RGBA 32-bit format
	static uint32 get_rgb32(const fcolour& col);

	// Convert colour to rgb components
	void get_rgb8(uint8* r, uint8* g, uint8* b);
};


#endif	// _FCOLOUR_H_