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3144ee8a AT |
1 | /* xscreensaver, Copyright (c) 1992, 1997 Jamie Zawinski <jwz@jwz.org> |
2 | * | |
3 | * Permission to use, copy, modify, distribute, and sell this software and its | |
4 | * documentation for any purpose is hereby granted without fee, provided that | |
5 | * the above copyright notice appear in all copies and that both that | |
6 | * copyright notice and this permission notice appear in supporting | |
7 | * documentation. No representations are made about the suitability of this | |
8 | * software for any purpose. It is provided "as is" without express or | |
9 | * implied warranty. | |
10 | */ | |
11 | ||
12 | #ifndef __HSV_H__ | |
13 | #define __HSV_H__ | |
14 | ||
15 | /* Converts between RGB and HSV color spaces. | |
16 | R, G, and B are in the range 0 - 65535; | |
17 | H is in the range 0 - 360; | |
18 | S and V are in the range 0.0 - 1.0. | |
19 | */ | |
20 | extern void hsv_to_rgb (int h, double s, double v, | |
21 | unsigned short *r, | |
22 | unsigned short *g, | |
23 | unsigned short *b); | |
24 | extern void rgb_to_hsv (unsigned short r, unsigned short g, unsigned short b, | |
25 | int *h, double *s, double *v); | |
26 | ||
27 | #endif /* __HSV_H__ */ |