*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
extern Visual *get_visual (Screen *, const char *name, Bool, Bool);
extern Visual *get_visual_resource (Screen *, char *, char *, Bool);
extern int visual_depth (Screen *, Visual *);
extern Visual *get_visual (Screen *, const char *name, Bool, Bool);
extern Visual *get_visual_resource (Screen *, char *, char *, Bool);
extern int visual_depth (Screen *, Visual *);
extern int visual_class (Screen *, Visual *);
extern int visual_cells (Screen *, Visual *);
extern int screen_number (Screen *);
extern Visual *find_similar_visual (Screen *, Visual *old);
extern void describe_visual (FILE *f, Screen *, Visual *, Bool private_cmap_p);
extern Visual *get_overlay_visual (Screen *, unsigned long *pixel_return);
extern int visual_class (Screen *, Visual *);
extern int visual_cells (Screen *, Visual *);
extern int screen_number (Screen *);
extern Visual *find_similar_visual (Screen *, Visual *old);
extern void describe_visual (FILE *f, Screen *, Visual *, Bool private_cmap_p);
extern Visual *get_overlay_visual (Screen *, unsigned long *pixel_return);
-extern Bool has_writable_cells (Screen *screen, Visual *visual);
-extern Visual *id_to_visual (Screen *screen, int id);
+extern Bool has_writable_cells (Screen *, Visual *);
+extern Visual *id_to_visual (Screen *, int);
+extern void visual_rgb_masks (Screen *screen, Visual *visual,
+ unsigned long *red_mask,
+ unsigned long *green_mask,
+ unsigned long *blue_mask);
-Visual *get_gl_visual (Screen *screen);
+extern Visual *get_gl_visual (Screen *);
+extern void describe_gl_visual (FILE *, Screen *, Visual *, Bool priv_cmap_p);
+extern Bool validate_gl_visual (FILE *, Screen *, const char *, Visual *);