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/* xscreensaver, Copyright © 1993-2021 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*/
#ifndef __XSCREENSAVER_H__
#define __XSCREENSAVER_H__
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <stdio.h>
#ifdef HAVE_SIGACTION
# include <signal.h> /* for sigset_t */
#endif
#include "blurb.h"
#include "types.h"
extern char *progclass;
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
/* =======================================================================
server extensions and virtual roots
======================================================================= */
extern Bool ensure_no_screensaver_running (Display *, Screen *);
/* Display Power Management System (DPMS) interface. */
extern Bool monitor_powered_on_p (Display *);
extern void monitor_power_on (saver_info *si, Bool on_p);
/* =======================================================================
blanking
======================================================================= */
extern Bool update_screen_layout (saver_info *si);
extern void initialize_screensaver_window (saver_info *si);
extern void blank_screen (saver_info *si);
extern void unblank_screen (saver_info *si);
extern void resize_screensaver_window (saver_info *si);
extern void get_screen_viewport (saver_screen_info *ssi,
int *x_ret, int *y_ret,
int *w_ret, int *h_ret,
int target_x, int target_y,
Bool verbose_p);
/* =======================================================================
timers
======================================================================= */
extern void cycle_timer (XtPointer si, XtIntervalId *id);
extern void sleep_until_idle (saver_info *si, Bool until_idle_p);
/* =======================================================================
subprocs
======================================================================= */
#ifdef HAVE_SIGACTION
extern sigset_t block_sigchld (void);
#else /* !HAVE_SIGACTION */
extern int block_sigchld (void);
#endif /* !HAVE_SIGACTION */
extern void unblock_sigchld (void);
extern void hack_environment (saver_info *si);
extern void init_sigchld (saver_info *si);
extern void spawn_screenhack (saver_screen_info *ssi);
extern void kill_screenhack (saver_screen_info *ssi);
extern Bool any_screenhacks_running_p (saver_info *si);
extern Bool select_visual (saver_screen_info *ssi, const char *visual_name);
extern void store_saver_status (saver_info *si);
extern const char *signal_name (int signal);
extern void screenhack_obituary (saver_screen_info *,
const char *name, const char *error);
/* =======================================================================
misc
======================================================================= */
extern Visual *get_best_gl_visual (saver_info *si, Screen *screen);
extern void maybe_reload_init_file (saver_info *);
void print_available_extensions (saver_info *);
#endif /* __XSCREENSAVER_H__ */
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