1 /* xscreensaver, Copyright (c) 1992, 1995, 1996, 1997
2 * Jamie Zawinski <jwz@jwz.org>
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation. No representations are made about the suitability of this
9 * software for any purpose. It is provided "as is" without express or
13 #ifndef __XSCREENSAVER_ALPHA_H__
14 #define __XSCREENSAVER_ALPHA_H__
16 extern int allocate_color_planes (Display *dpy, Colormap cmap,
17 int nplanes, unsigned long *plane_masks,
18 unsigned long *base_pixel_ret);
20 extern void initialize_transparency_colormap (Display *dpy, Colormap cmap,
22 unsigned long base_pixel,
23 unsigned long *plane_masks,
27 extern Bool allocate_alpha_colors (Display *dpy, Colormap cmap,
28 int *nplanesP, Bool additive_p,
29 unsigned long **plane_masks,
30 unsigned long *base_pixelP);
32 #endif /* __XSCREENSAVER_ALPHA_H__ */