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RGB <-> HSV colorspace conversion lib

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10253 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Antoine Cellerier 2006-07-19 19:40:17 +00:00
parent 61c301bf8d
commit 5e306b4c19
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apps/plugins/lib/rgb_hsv.h Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Antoine Cellerier <dionoea -at- videolan -dot- org>
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef LIB_HSV_RGB_H
#define LIB_HSV_RGB_H
/***********************************************************************
* Colorspace transformations
***********************************************************************
* r, g and b range from 0 to 255
* h ranges from 0 to 3599 (which in fact means 0.0 to 359.9).
* 360 is the same as 0 (it loops)
* s and v range from 0 to 255 (which in fact means 0.00 to 1.00)
***********************************************************************/
void rgb2hsv( int r, int g, int b, int *h, int *s, int *v );
void hsv2rgb( int h, int s, int v, int *r, int *g, int *b );
#endif