apps/plugins/lib/rgb_hsv.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Antoine Cellerier <dionoea -at- videolan -dot- org>
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef LIB_HSV_RGB_H
  23 #define LIB_HSV_RGB_H
  24
  25 /***********************************************************************
  26  * Colorspace transformations
  27  ***********************************************************************
  28  * r, g and b range from 0 to 255
  29  * h ranges from 0 to 3599 (which in fact means 0.0 to 359.9).
  30  *   360 is the same as 0 (it loops)
  31  * s and v range from 0 to 255 (which in fact means 0.00 to 1.00)
  32  ***********************************************************************/
  33
  34 void rgb2hsv( int r, int g, int b, int *h, int *s, int *v );
  35 void hsv2rgb( int h, int s, int v, int *r, int *g, int *b );
  36
  37 #endif