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28 lines
998 B
28 lines
998 B
/* xscreensaver, Copyright (c) 1992, 1997 Jamie Zawinski <jwz@jwz.org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation. No representations are made about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*/
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#ifndef __HSV_H__
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#define __HSV_H__
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/* Converts between RGB and HSV color spaces.
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R, G, and B are in the range 0 - 65535;
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H is in the range 0 - 360;
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S and V are in the range 0.0 - 1.0.
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*/
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extern void hsv_to_rgb (int h, double s, double v,
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unsigned short *r,
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unsigned short *g,
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unsigned short *b);
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extern void rgb_to_hsv (unsigned short r, unsigned short g, unsigned short b,
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int *h, double *s, double *v);
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#endif /* __HSV_H__ */
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