/*
 * Copyright (c) 1993-1994 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and the Network Research Group at
 *      Lawrence Berkeley Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#) $Header: /work/projects/tove/cvs/src/testing/vic-2.8/color-pseudo.h,v 1.1 1997/12/03 11:14:42 parnanen Exp $ (LBL)
 */

#ifndef vic_color_pseudo_h
#define vic_color_pseudo_h

#include "color.h"
#include "renderer-window.h"

class PseudoColorModel : public ColorModel {
public:
	PseudoColorModel();
	~PseudoColorModel();
	inline const u_char* lut() const { return (lut_); }
	virtual int command(int argc, const char*const* argv);
protected:
	int installLUT(int def_ncolor, const u_char* def_cmap,
		       const u_char* def_lut);
	int allocate(int ncolor, const u_char* cmap, u_char* lut);
	int readLUT(const char* file, u_char* cmap);
	const char* file_;
	u_char* lut_;
};

class PseudoWindowRenderer : public WindowDitherer {
 protected:
	PseudoWindowRenderer(VideoWindow* vw, int decimation,
			     const u_short* glut) :
		WindowDitherer(vw, decimation), graylut_(glut) { }
	void dither_gray_down(const u_char* yp,
			      u_int off, u_int x,
			      u_int width, u_int height) const;
	void dither_gray(const u_char* yp,
			 u_int off, u_int x,
			 u_int width, u_int height) const;
	void dither_gray_up(const u_char* yp,
			    u_int off, u_int x,
			    u_int width, u_int height) const;
	const u_short* graylut_;
};


#endif