| 1 | /* xscreensaver, Copyright (c) 1993-2014 by 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 __VISUAL_H__ |
| 13 | #define __VISUAL_H__ |
| 14 | |
| 15 | extern Visual *get_visual (Screen *, const char *name, Bool, Bool); |
| 16 | extern Visual *get_visual_resource (Screen *, char *, char *, Bool); |
| 17 | extern int visual_depth (Screen *, Visual *); |
| 18 | extern int visual_pixmap_depth (Screen *, Visual *); |
| 19 | extern int visual_class (Screen *, Visual *); |
| 20 | extern int visual_cells (Screen *, Visual *); |
| 21 | extern int screen_number (Screen *); |
| 22 | extern Visual *find_similar_visual (Screen *, Visual *old); |
| 23 | extern void describe_visual (FILE *f, Screen *, Visual *, Bool private_cmap_p); |
| 24 | extern Visual *get_overlay_visual (Screen *, unsigned long *pixel_return); |
| 25 | extern Bool has_writable_cells (Screen *, Visual *); |
| 26 | extern Visual *id_to_visual (Screen *, int); |
| 27 | extern void visual_rgb_masks (Screen *screen, Visual *visual, |
| 28 | unsigned long *red_mask, |
| 29 | unsigned long *green_mask, |
| 30 | unsigned long *blue_mask); |
| 31 | |
| 32 | extern Visual *get_gl_visual (Screen *); |
| 33 | extern void describe_gl_visual (FILE *, Screen *, Visual *, Bool priv_cmap_p); |
| 34 | extern Bool validate_gl_visual (FILE *, Screen *, const char *, Visual *); |
| 35 | |
| 36 | #endif /* __VISUAL_H__ */ |