/*
 *  Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#ifndef _KIS_CONVERSIONS_H_
#define _KIS_CONVERSIONS_H_

#include <tqglobal.h>

/**
 * A number of often-used conversions between color models
 */

// 8-bit integer versions. RGBSL are 0-255, H is 0-360.
 void rgb_to_hsv(int R, int G, int B, int *H, int *S, int *V);
 void hsv_to_rgb(int H, int S, int V, int *R, int *G, int *B);

// Floating point versions. RGBSL are 0-1, H is 0-360.
 void RGBToHSV(float r, float g, float b, float *h, float *s, float *v);
 void HSVToRGB(float h, float s, float v, float *r, float *g, float *b);

 void RGBToHSL(float r, float g, float b, float *h, float *s, float *l);
 void HSLToRGB(float h, float sl, float l, float *r, float *g, float *b);

 void rgb_to_hls(TQ_UINT8 r, TQ_UINT8 g, TQ_UINT8 b, float * h, float * l, float * s);

 float hue_value(float n1, float n2, float hue);

 void hls_to_rgb(float h, float l, float s, TQ_UINT8 * r, TQ_UINT8 * g, TQ_UINT8 * b);

 void rgb_to_hls(TQ_UINT8 r, TQ_UINT8 g, TQ_UINT8 b, int * h, int * l, int * s);
 void hls_to_rgb(int h, int l, int s, TQ_UINT8 * r, TQ_UINT8 * g, TQ_UINT8 * b);

#endif // _KIS_CONVERSIONS_H_