src/colour-ramp.h

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/********************************************************************
 * sphore - SPH Opengl Rendering Engine
 *
 * This file is (or was) part of sphore.
 * sphore comes with ABSOLUTELY NO WARRANTY.
 * This is free software; and you are welcome to redistribute
 * it under the terms of the GNU General Public License
 * (see LICENSE file for details) and the provision that
 * this notice remains intact. If you modify this file, please
 * note section 2a) of the GPLv2 states that:
 *
 *  a) You must cause the modified files to carry prominent notices
 *     stating that you changed the files and the date of any change.
 *
 * Copyright (C) 2011 James Wetter. All rights reserved.
 * Contact: wetter.j@gmail.com
 *
 ********************************************************************/

#ifndef COLOUR_RAMP_H
#define COLOUR_RAMP_H

#include "sphore.h"

typedef struct _colour_ramp colour_ramp_t;

colour_ramp_t *colour_ramp_create ();

void colour_ramp_destroy (colour_ramp_t * cr);

SREbool
colour_ramp_set (colour_ramp_t * cr, int n, float *controlPoints, float *red,
                 float *green, float *blue);

void colour_ramp_get_rgb (colour_ramp_t * cr, float pos, float *red,
                          float *green, float *blue);

void colour_ramp_onto_device (colour_ramp_t * cr);
#endif