/* xscreensaver, Copyright (c) 1993-2017 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 "prefs.h"
extern char *progname;
extern char *progclass;
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
/* =======================================================================
server extensions and virtual roots
======================================================================= */
extern Bool restore_real_vroot (saver_info *si);
extern void disable_builtin_screensaver (saver_info *, Bool unblank_screen_p);
extern Bool ensure_no_screensaver_running (Display *, Screen *);
#ifdef HAVE_PROC_INTERRUPTS
extern Bool query_proc_interrupts_available (saver_info *, const char **why);
#endif
#ifdef HAVE_XINPUT
extern Bool query_xinput_extension (saver_info *);
extern void init_xinput_extension (saver_info *si);
#endif
/* Display Power Management System (DPMS) interface. */
extern Bool monitor_powered_on_p (saver_info *si);
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 initialize_screen_root_widget (saver_screen_info *ssi);
extern void raise_window (saver_info *si,
Bool inhibit_fade, Bool between_hacks_p,
Bool dont_clear);
extern Bool 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);
/* =======================================================================
locking
======================================================================= */
#ifndef NO_LOCKING
extern Bool unlock_p (saver_info *si);
extern Bool lock_priv_init (int argc, char **argv, Bool verbose_p);
extern Bool lock_init (int argc, char **argv, Bool verbose_p);
extern Bool passwd_valid_p (const char *typed_passwd, Bool verbose_p);
#endif /* NO_LOCKING */
extern void set_locked_p (saver_info *si, Bool locked_p);
extern int move_mouse_grab (saver_info *si, Window to, Cursor cursor,
int to_screen_no);
extern int mouse_screen (saver_info *si);
/* =======================================================================
runtime privileges
======================================================================= */
extern void hack_uid (saver_info *si);
extern void describe_uids (saver_info *si, FILE *out);
/* =======================================================================
demoing
======================================================================= */
extern void draw_shaded_rectangle (Display *dpy, Window window,
int x, int y,
int width, int height,
int thickness,
unsigned long top_color,
unsigned long bottom_color);
extern int string_width (XFontStruct *font, char *s);
extern void make_splash_dialog (saver_info *si);
extern void handle_splash_event (saver_info *si, XEvent *e);
extern XFontStruct *splash_load_font (Display *, char *name, char *class);
/* =======================================================================
timers
======================================================================= */
extern void start_notice_events_timer (saver_info *, Window, Bool verbose_p);
extern void cycle_timer (XtPointer si, XtIntervalId *id);
extern void activate_lock_timer (XtPointer si, XtIntervalId *id);
extern void reset_watchdog_timer (saver_info *si, Bool on_p);
extern void idle_timer (XtPointer si, XtIntervalId *id);
extern void de_race_timer (XtPointer si, XtIntervalId *id);
extern void sleep_until_idle (saver_info *si, Bool until_idle_p);
extern void reset_timers (saver_info *si);
extern void schedule_wakeup_event (saver_info *si, Time when, Bool verbose_p);
/* =======================================================================
remote control
======================================================================= */
extern Bool handle_clientmessage (saver_info *, XEvent *, Bool);
extern void maybe_reload_init_file (saver_info *);
/* =======================================================================
subprocs
======================================================================= */
extern void handle_signals (saver_info *si);
#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 hack_subproc_environment (Screen *, Window saver_window);
extern void init_sigchld (void);
extern void spawn_screenhack (saver_screen_info *ssi);
extern pid_t fork_and_exec (saver_screen_info *ssi, const char *command);
extern void kill_screenhack (saver_screen_info *ssi);
extern void suspend_screenhack (saver_screen_info *ssi, Bool suspend_p);
extern Bool screenhack_running_p (saver_info *si);
extern void emergency_kill_subproc (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);
/* =======================================================================
subprocs diagnostics
======================================================================= */
extern FILE *real_stderr;
extern FILE *real_stdout;
extern void stderr_log_file (saver_info *si);
extern void initialize_stderr (saver_info *si);
extern void reset_stderr (saver_screen_info *ssi);
extern void clear_stderr (saver_screen_info *ssi);
extern void shutdown_stderr (saver_info *si);
/* =======================================================================
misc
======================================================================= */
extern const char *blurb (void);
extern void save_argv (int argc, char **argv);
extern void saver_exit (saver_info *si, int status, const char *core_reason);
extern void restart_process (saver_info *si);
extern int saver_ehandler (Display *dpy, XErrorEvent *error);
extern int BadWindow_ehandler (Display *dpy, XErrorEvent *error);
extern Bool window_exists_p (Display *dpy, Window window);
extern Bool in_signal_handler_p;
extern char *timestring (time_t);
extern Bool display_is_on_console_p (saver_info *si);
extern Visual *get_best_gl_visual (saver_info *si, Screen *screen);
extern void check_for_leaks (const char *where);
extern void describe_monitor_layout (saver_info *si);
#ifdef HAVE_XF86VMODE
Bool safe_XF86VidModeGetViewPort (Display *, int, int *, int *);
#endif /* HAVE_XF86VMODE */
extern Atom XA_VROOT, XA_XSETROOT_ID, XA_ESETROOT_PMAP_ID, XA_XROOTPMAP_ID;
extern Atom XA_NET_WM_USER_TIME;
extern Atom XA_SCREENSAVER, XA_SCREENSAVER_VERSION, XA_SCREENSAVER_ID;
extern Atom XA_SCREENSAVER_STATUS, XA_LOCK, XA_BLANK;
extern Atom XA_DEMO, XA_PREFS;
#endif /* __XSCREENSAVER_H__ */
