-/* xscreensaver, Copyright (c) 1991-2003 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1991-2008 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
#include <time.h>
#include <sys/time.h>
#include <netdb.h> /* for gethostbyname() */
+#include <sys/types.h>
+#include <pwd.h>
#ifdef HAVE_XMU
# ifndef VMS
# include <X11/Xmu/Error.h>
#include "resources.h"
#include "visual.h"
#include "usleep.h"
+#include "auth.h"
saver_info *global_si_kludge = 0; /* I hate C so much... */
/* useful for debugging */
{ "-no-capture-stderr", ".captureStderr", XrmoptionNoArg, "off" },
-
- /* There's really no reason to have these command-line args; they just
- lead to confusion when the .xscreensaver file has conflicting values.
- */
-#if 0
- { "-splash", ".splash", XrmoptionNoArg, "on" },
- { "-capture-stderr", ".captureStderr", XrmoptionNoArg, "on" },
- { "-timeout", ".timeout", XrmoptionSepArg, 0 },
- { "-cycle", ".cycle", XrmoptionSepArg, 0 },
- { "-lock-mode", ".lock", XrmoptionNoArg, "on" },
- { "-no-lock-mode", ".lock", XrmoptionNoArg, "off" },
- { "-no-lock", ".lock", XrmoptionNoArg, "off" },
- { "-lock-timeout", ".lockTimeout", XrmoptionSepArg, 0 },
- { "-lock-vts", ".lockVTs", XrmoptionNoArg, "on" },
- { "-no-lock-vts", ".lockVTs", XrmoptionNoArg, "off" },
- { "-visual", ".visualID", XrmoptionSepArg, 0 },
- { "-install", ".installColormap", XrmoptionNoArg, "on" },
- { "-no-install", ".installColormap", XrmoptionNoArg, "off" },
- { "-timestamp", ".timestamp", XrmoptionNoArg, "on" },
- { "-xidle-extension", ".xidleExtension", XrmoptionNoArg, "on" },
- { "-no-xidle-extension", ".xidleExtension", XrmoptionNoArg, "off" },
- { "-mit-extension", ".mitSaverExtension",XrmoptionNoArg, "on" },
- { "-no-mit-extension", ".mitSaverExtension",XrmoptionNoArg, "off" },
- { "-sgi-extension", ".sgiSaverExtension",XrmoptionNoArg, "on" },
- { "-no-sgi-extension", ".sgiSaverExtension",XrmoptionNoArg, "off" },
- { "-proc-interrupts", ".procInterrupts", XrmoptionNoArg, "on" },
- { "-no-proc-interrupts", ".procInterrupts", XrmoptionNoArg, "off" },
- { "-idelay", ".initialDelay", XrmoptionSepArg, 0 },
- { "-nice", ".nice", XrmoptionSepArg, 0 },
-#endif /* 0 */
};
#ifdef __GNUC__
fflush (stdout);
fflush (stderr);
fprintf (stdout, "\
-xscreensaver %s, copyright (c) 1991-2004 by Jamie Zawinski <jwz@jwz.org>\n\
+xscreensaver %s, copyright (c) 1991-2008 by Jamie Zawinski <jwz@jwz.org>\n\
\n\
All xscreensaver configuration is via the `~/.xscreensaver' file.\n\
Rather than editing that file by hand, just run `xscreensaver-demo':\n\
whether to print the banner (and so that the banner gets printed before
any resource-database-related error messages.)
*/
- p->verbose_p = (p->debug_p || get_boolean_resource ("verbose", "Boolean"));
+ p->verbose_p = (p->debug_p ||
+ get_boolean_resource (si->dpy, "verbose", "Boolean"));
/* Ditto, for the locking_disabled_p message. */
- p->lock_p = get_boolean_resource ("lock", "Boolean");
+ p->lock_p = get_boolean_resource (si->dpy, "lock", "Boolean");
if (p->verbose_p)
fprintf (stderr,
- "%s %s, copyright (c) 1991-2004 "
+ "%s %s, copyright (c) 1991-2008 "
"by Jamie Zawinski <jwz@jwz.org>.\n",
progname, si->version);
}
+#ifdef HAVE_XINERAMA
+
+static Bool
+screens_overlap_p (XineramaScreenInfo *a, XineramaScreenInfo *b)
+{
+ /* Two rectangles overlap if the max of the tops is less than the
+ min of the bottoms and the max of the lefts is less than the min
+ of the rights.
+ */
+# undef MAX
+# undef MIN
+# define MAX(A,B) ((A)>(B)?(A):(B))
+# define MIN(A,B) ((A)<(B)?(A):(B))
+
+ int maxleft = MAX(a->x_org, b->x_org);
+ int maxtop = MAX(a->y_org, b->y_org);
+ int minright = MIN(a->x_org + a->width - 1, b->x_org + b->width);
+ int minbot = MIN(a->y_org + a->height - 1, b->y_org + b->height);
+ return (maxtop < minbot && maxleft < minright);
+}
+
+
+/* Go through the list of Xinerama screen descriptions, and mark the
+ ones that appear to be insane, so that we don't use them.
+ */
+static void
+check_xinerama_sanity (int count, Bool verbose_p, XineramaScreenInfo *xsi)
+{
+ static Bool printed_p = False;
+ int i, j;
+ char err[1024];
+ *err = 0;
+
+# define X1 xsi[i].x_org
+# define X2 xsi[j].x_org
+# define Y1 xsi[i].y_org
+# define Y2 xsi[j].y_org
+# define W1 xsi[i].width
+# define W2 xsi[j].width
+# define H1 xsi[i].height
+# define H2 xsi[j].height
+
+# define WHINE() do { \
+ if (verbose_p) { \
+ if (! printed_p) { \
+ fprintf (stderr, "%s: compensating for Xinerama braindamage:\n", \
+ blurb()); \
+ printed_p = True; \
+ } \
+ fprintf (stderr, "%s: %d: %s\n", blurb(), xsi[i].screen_number,err); \
+ } \
+ xsi[i].screen_number = -1; \
+ } while(0)
+
+ /* If a screen is enclosed by any other screen, that's insane.
+ */
+ for (i = 0; i < count; i++)
+ for (j = 0; j < count; j++)
+ if (i != j &&
+ xsi[i].screen_number >= 0 &&
+ xsi[j].screen_number >= 0 &&
+ X1 >= X2 && Y1 >= Y2 && (X1+W1) <= (X2+W2) && (X1+H1) <= (X2+H2))
+ {
+ sprintf (err, "%dx%d+%d+%d enclosed by %dx%d+%d+%d",
+ W1, H1, X1, Y1,
+ W2, H2, X2, Y2);
+ WHINE();
+ continue;
+ }
+
+ /* After checking for enclosure, check for other lossage against earlier
+ screens. We do enclosure first so that we make sure to pick the
+ larger one.
+ */
+ for (i = 0; i < count; i++)
+ for (j = 0; j < i; j++)
+ {
+ if (xsi[i].screen_number < 0) continue; /* already marked */
+
+ *err = 0;
+ if (X1 == X2 && Y1 == Y2 && W1 == W2 && H1 == H2)
+ sprintf (err, "%dx%d+%d+%d duplicated", W1, H1, X1, Y1);
+
+ else if (screens_overlap_p (&xsi[i], &xsi[j]))
+ sprintf (err, "%dx%d+%d+%d overlaps %dx%d+%d+%d",
+ W1, H1, X1, Y1,
+ W2, H2, X2, Y2);
+
+ if (*err) WHINE();
+ }
+
+# undef X1
+# undef X2
+# undef Y1
+# undef Y2
+# undef W1
+# undef W2
+# undef H1
+# undef H2
+}
+
+#endif /* HAVE_XINERAMA */
+
+
+
/* Examine all of the display's screens, and populate the `saver_screen_info'
structures. Make sure this is called after hack_environment() sets $PATH.
*/
if (si->xinerama_p)
{
- XineramaScreenInfo *xsi = XineramaQueryScreens (si->dpy, &si->nscreens);
+ int nscreens = 0;
+ XineramaScreenInfo *xsi = XineramaQueryScreens (si->dpy, &nscreens);
if (!xsi)
si->xinerama_p = False;
else
{
+ int j = 0;
si->screens = (saver_screen_info *)
- calloc(sizeof(saver_screen_info), si->nscreens);
- for (i = 0; i < si->nscreens; i++)
+ calloc(sizeof(saver_screen_info), nscreens);
+ check_xinerama_sanity (nscreens, si->prefs.verbose_p, xsi);
+ for (i = 0; i < nscreens; i++)
{
- si->screens[i].x = xsi[i].x_org;
- si->screens[i].y = xsi[i].y_org;
- si->screens[i].width = xsi[i].width;
- si->screens[i].height = xsi[i].height;
+ if (xsi[i].screen_number < 0) /* deemed insane */
+ continue;
+ si->screens[j].x = xsi[i].x_org;
+ si->screens[j].y = xsi[i].y_org;
+ si->screens[j].width = xsi[i].width;
+ si->screens[j].height = xsi[i].height;
+ j++;
}
+ si->nscreens = j;
XFree (xsi);
}
si->default_screen = &si->screens[0];
}
+# ifdef QUAD_MODE
/* In "quad mode", we use the Xinerama code to pretend that there are 4
screens for every physical screen, and run four times as many hacks...
*/
si->default_screen = &si->screens[DefaultScreen(si->dpy) * 4];
si->xinerama_p = True;
}
+# endif /* QUAD_MODE */
/* finish initializing the screens.
*/
ssi->number = i;
ssi->screen = ScreenOfDisplay (si->dpy, ssi->real_screen_number);
+ ssi->poll_mouse_last_root_x = -1;
+ ssi->poll_mouse_last_root_y = -1;
if (!si->xinerama_p)
{
blurb());
}
+#ifdef HAVE_RANDR
+ query_randr_extension (si);
+#endif
+
if (!system_has_proc_interrupts_p)
{
si->using_proc_interrupts = False;
fprintf (stderr, "%s: file \"%s\" has changed, reloading.\n",
blurb(), init_file_name());
- load_init_file (p);
+ load_init_file (si->dpy, p);
/* If a server extension is in use, and p->timeout has changed,
we need to inform the server of the new timeout. */
/* Go around the loop and wait for the next bout of idleness,
or for the init file to change, or for a remote command to
come in, or something.
+
+ But, if locked_p is true, go ahead. This can only happen
+ if we're in "disabled" mode but a "lock" clientmessage came
+ in: in that case, we should go ahead and blank/lock the screen.
*/
- continue;
+ if (!si->locked_p)
+ continue;
+ }
+
+ /* Since we're about to blank the screen, kill the de-race timer,
+ if any. It might still be running if we have unblanked and then
+ re-blanked in a short period (e.g., when using the "next" button
+ in xscreensaver-demo.)
+ */
+ if (si->de_race_id)
+ {
+ if (p->verbose_p)
+ fprintf (stderr, "%s: stopping de-race timer (%d remaining.)\n",
+ blurb(), si->de_race_ticks);
+ XtRemoveTimeOut (si->de_race_id);
+ si->de_race_id = 0;
}
+
+ /* Now, try to blank.
+ */
+
if (! blank_screen (si))
{
/* We were unable to grab either the keyboard or mouse.
see any events, and the display would be wedged.
So, just go around the loop again and wait for the
- next bout of idleness.
+ next bout of idleness. (If the user remains idle, we
+ will next try to blank the screen again in no more than
+ 60 seconds.)
*/
+ Time retry = 60 * 1000;
+ if (p->timeout < retry)
+ retry = p->timeout;
- fprintf (stderr,
+ if (p->debug_p)
+ {
+ fprintf (stderr,
+ "%s: DEBUG MODE: unable to grab -- BLANKING ANYWAY.\n",
+ blurb());
+ }
+ else
+ {
+ fprintf (stderr,
"%s: unable to grab keyboard or mouse! Blanking aborted.\n",
- blurb());
- continue;
+ blurb());
+
+ schedule_wakeup_event (si, retry, p->debug_p);
+ continue;
+ }
}
kill_screenhack (si);
si->lock_id = 0;
}
- /* It's possible that a race condition could have led to the saver
- window being unexpectedly still mapped. This can happen like so:
-
- - screen is blanked
- - hack is launched
- - that hack tries to grab a screen image (it does this by
- first unmapping the saver window, then remapping it.)
- - hack unmaps window
- - hack waits
- - user becomes active
- - hack re-maps window (*)
- - driver kills subprocess
- - driver unmaps window (**)
-
- The race is that (*) might have been sent to the server before
- the client process was killed, but, due to scheduling randomness,
- might not have been received by the server until after (**).
- In other words, (*) and (**) might happen out of order, meaning
- the driver will unmap the window, and then after that, the
- recently-dead client will re-map it. This leaves the user
- locked out (it looks like a desktop, but it's not!)
-
- To avoid this: after un-blanking the screen, sleep for a second,
- and then really make sure the window is unmapped.
-
- Update: actually, let's do that once a second for 8 seconds,
- because sometimes the machine is slow, and we miss...
- */
- {
- int i, j;
- for (j = 0; j < 8; j++)
- {
- XSync (si->dpy, False);
- sleep (1);
- for (i = 0; i < si->nscreens; i++)
- {
- saver_screen_info *ssi = &si->screens[i];
- Window w = ssi->screensaver_window;
- XWindowAttributes xgwa;
- XGetWindowAttributes (si->dpy, w, &xgwa);
- if (xgwa.map_state != IsUnmapped)
- {
- if (p->verbose_p)
- fprintf (stderr,
- "%s: %d: client race! emergency unmap 0x%lx.\n",
- blurb(), i, (unsigned long) w);
- XUnmapWindow (si->dpy, w);
- }
- }
- XSync (si->dpy, False);
- }
- }
+ /* Since we're unblanked now, break race conditions and make
+ sure we stay that way (see comment in timers.c.) */
+ if (! si->de_race_id)
+ de_race_timer ((XtPointer) si, 0);
}
}
saver_info the_si;
saver_info *si = &the_si;
saver_preferences *p = &si->prefs;
+ struct passwd *spasswd;
int i;
memset(si, 0, sizeof(*si));
privileged_initialization (si, &argc, argv);
hack_environment (si);
+ spasswd = getpwuid(getuid());
+ if (!spasswd)
+ {
+ fprintf(stderr, "Could not figure out who the current user is!\n");
+ return 1;
+ }
+
+ si->user = strdup(spasswd->pw_name ? spasswd->pw_name : "(unknown)");
+
+# ifndef NO_LOCKING
+ si->unlock_cb = gui_auth_conv;
+ si->auth_finished_cb = auth_finished_cb;
+# endif /* !NO_LOCKING */
+
shell = connect_to_server (si, &argc, argv);
process_command_line (si, &argc, argv);
print_banner (si);
- load_init_file (p); /* must be before initialize_per_screen_info() */
+ load_init_file(si->dpy, p); /* must be before initialize_per_screen_info() */
blurb_timestamp_p = p->timestamp_p; /* kludge */
initialize_per_screen_info (si, shell); /* also sets si->fading_possible_p */
static void
bogus_clientmessage_warning (saver_info *si, XEvent *event)
{
+#if 0 /* Oh, fuck it. GNOME likes to spew random ClientMessages at us
+ all the time. This is presumably indicative of an error in
+ the sender of that ClientMessage: if we're getting it and
+ ignoring it, then it's not reaching the intended recipient.
+ But people complain to me about this all the time ("waaah!
+ xscreensaver is printing to it's stderr and that gets my
+ panties all in a bunch!") And I'm sick of hearing about it.
+ So we'll just ignore these messages and let GNOME go right
+ ahead and continue to stumble along in its malfunction.
+ */
+
+ saver_preferences *p = &si->prefs;
char *str = XGetAtomName_safe (si->dpy, event->xclient.message_type);
Window w = event->xclient.window;
char wdesc[255];
int screen = 0;
+ Bool root_p = False;
*wdesc = 0;
for (screen = 0; screen < si->nscreens; screen++)
else if (w == RootWindow (si->dpy, screen))
{
strcpy (wdesc, "root");
+ root_p = True;
break;
}
+ /* If this ClientMessage was sent to the real root window instead of to the
+ xscreensaver window, then it might be intended for someone else who is
+ listening on the root window (e.g., the window manager). So only print
+ the warning if: we are in debug mode; or if the bogus message was
+ actually sent to one of the xscreensaver-created windows.
+ */
+ if (root_p && !p->debug_p)
+ return;
+
if (!*wdesc)
{
XErrorHandler old_handler;
fprintf (stderr, "%s: %d: for window 0x%lx (%s)\n",
blurb(), screen, (unsigned long) w, wdesc);
if (str) XFree (str);
+
+#endif /* 0 */
}
+
Bool
handle_clientmessage (saver_info *si, XEvent *event, Bool until_idle_p)
{
else if (type == XA_DEMO)
{
long arg = event->xclient.data.l[1];
- Bool demo_one_hack_p = (arg == 300);
+ Bool demo_one_hack_p = (arg == 5000);
if (demo_one_hack_p)
{
"not compiled with support for locking.",
"locking not enabled.");
#else /* !NO_LOCKING */
- if (p->mode == DONT_BLANK)
- clientmessage_response(si, window, True,
- "LOCK ClientMessage received in DONT_BLANK mode.",
- "screen blanking is currently disabled.");
- else if (si->locking_disabled_p)
+ if (si->locking_disabled_p)
clientmessage_response (si, window, True,
"LOCK ClientMessage received, but locking is disabled.",
"locking not enabled.");
}
else if (type == XA_THROTTLE)
{
+ /* The THROTTLE command is deprecated -- it predates the XDPMS
+ extension. Instead of using -throttle, users should instead
+ just power off the monitor (e.g., "xset dpms force off".)
+ In a few minutes, xscreensaver will notice that the monitor
+ is off, and cease running hacks.
+ */
if (si->throttled_p)
clientmessage_response (si, window, True,
"THROTTLE ClientMessage received, but "
False
# endif
}, { "XINERAMA", "Xinerama",
+# ifdef HAVE_XINERAMA
True
+# else
+ False
+# endif
+ }, { "RANDR", "Resize-and-Rotate",
+# ifdef HAVE_RANDR
+ True
+# else
+ False
+# endif
}, { "Apple-DRI", "Apple-DRI (XDarwin)",
True
},
j = strlen (buf);
strcat (buf, exts[i].desc);
if (!exts[i].useful_p)
- {
- int k = j + 18;
- while (strlen (buf) < k) strcat (buf, " ");
- strcat (buf, "<-- not supported at compile time!");
- }
+ strcat (buf, " (disabled at compile time)");
fprintf (stderr, "%s\n", buf);
}
not_on_console = False;
else if (gethostname (localname, sizeof (localname)))
not_on_console = True; /* can't find hostname? */
+ else if (!strncmp (dpyname, "/tmp/launch-", 12)) /* MacOS X launchd */
+ not_on_console = False;
else
{
/* We have to call gethostbyname() on the result of gethostname()
void
check_for_leaks (const char *where)
{
-#ifdef HAVE_SBRK
+#if defined(HAVE_SBRK) && defined(LEAK_PARANOIA)
static unsigned long last_brk = 0;
int b = (unsigned long) sbrk(0);
if (last_brk && last_brk < b)
projects / xscreensaver / blobdiff