/*
 * Amiga GLUT graphics library toolkit
 * Version:  1.1
 * Copyright (C) 1998 Jarno van der Linden
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


/*
 * glutGetSetColor.c
 *
 * Version 1.0  28 Jun 1998
 * by Jarno van der Linden
 * jarno@kcbbs.gen.nz
 *
 */


#include <proto/graphics.h>
#include <proto/intuition.h>

#include "glutstuff.h"


GLfloat glutGetColor(int ndx, int component )
{
	ULONG table[3];

	if((ndx < 0) || (ndx > 255))
		return(-1.0);

	GetRGB32(ViewPortAddress(glutstuff.curwin->window)->ColorMap, ndx - glutstuff.colourbase, 1, table);

	switch(component)
	{
		case GLUT_RED:
			return((GLfloat)(((GLfloat)table[0])/0xffffffff));
		case GLUT_GREEN:
			return((GLfloat)(((GLfloat)table[1])/0xffffffff));
		case GLUT_BLUE:
			return((GLfloat)(((GLfloat)table[2])/0xffffffff));
	}

	return(-1.0);
}


void glutSetColor(int cell, GLfloat red, GLfloat green, GLfloat blue)
{
	ULONG r,g,b;

	if(red < 0.0)
		red = 0.0;
	else if(red > 1.0)
		red = 1.0;

	if(green < 0.0)
		green = 0.0;
	else if(green > 1.0)
		green = 1.0;

	if(blue < 0.0)
		blue = 0.0;
	else if(blue > 1.0)
		blue = 1.0;

	r = (ULONG)(red * 0xffffffff);
	g = (ULONG)(green * 0xffffffff);
	b = (ULONG)(blue * 0xffffffff);

	SetRGB32(ViewPortAddress(glutstuff.curwin->window), glutstuff.colourbase + cell, r, g, b);
}