/*-

 * XCrHsbCmap.c - X11 library routine to create an HSB ramp colormaps.

 *

 * Copyright 1995 Sun Microsystems, Inc.  All rights reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the

 * "Software"), to deal in the Software without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, and/or sell copies of the Software, and to permit persons

 * to whom the Software is furnished to do so, provided that the above

 * copyright notice(s) and this permission notice appear in all copies of

 * the Software and that both the above copyright notice(s) and this

 * permission notice appear in supporting documentation.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT

 * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR

 * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL

 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING

 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,

 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION

 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 *

 * Except as contained in this notice, the name of a copyright holder

 * shall not be used in advertising or otherwise to promote the sale, use

 * or other dealings in this Software without prior written authorization

 * of the copyright holder.

 *

 * Author: Patrick J. Naughton

 * [email protected]

 */

#include <X11/X.h>

#include <X11/Xos.h>

#include <X11/Xlib.h>

extern void HSBmap();

Status

XCreateHSBColormap(dsp, screen, cmap, count, h1, s1, b1, h2, s2, b2, bw, visual)

    Display    *dsp;

    int         screen;

    Colormap   *cmap;		/* colormap return value */

    int         count;		/* number of entrys to use */

    double      h1,		/* starting hue */

                s1,		/* starting saturation */

                b1,		/* starting brightness */

                h2,		/* ending hue */

                s2,		/* ending saturation */

                b2;		/* ending brightness */

    int         bw;		/* Boolean: True = save black and white */

    Visual    **visual;

{

    u_char      red[256];

    u_char      green[256];

    u_char      blue[256];

    unsigned long pixel;

    Status      status;

    XColor      xcolors[256];

    if (count > 256)

	return BadValue;

    HSBramp(h1, s1, b1, h2, s2, b2, 0, count - 1, red, green, blue);

    if (bw) {

	pixel = WhitePixel(dsp, screen);

	if (pixel < 256)

	    red[pixel] = green[pixel] = blue[pixel] = 0xff;

	pixel = BlackPixel(dsp, screen);

	if (pixel < 256)

	    red[pixel] = green[pixel] = blue[pixel] = 0;

    }

    status = XCreateDynamicColormap(dsp, screen, cmap, visual, xcolors,

				    count, red, green, blue);

    return status;

}