http://se.aminet.net/pub/Linux/distributions/slackware/slackware-10.1/source/xap...

[xscreensaver] / driver / xset.c

diff --git a/driver/xset.c b/driver/xset.c
index 6dabdb2d156f9f3942ed070abbce2358f23a64ca..677a8c0a2dc5b3f8082bf84513f11932746035b9 100644 (file)
--- a/driver/xset.c
+++ b/driver/xset.c
@@ -1,5 +1,5 @@
 /* xset.c --- interacting with server extensions and the builtin screensaver.
- * xscreensaver, Copyright (c) 1991-1998 Jamie Zawinski <jwz@jwz.org>
+ * xscreensaver, Copyright (c) 1991-2004 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
@@ -156,6 +156,44 @@ query_xidle_extension (saver_info *si)
 #endif /* HAVE_XIDLE_EXTENSION */
 
 
+\f
+/* Resize and Rotate server extension hackery.
+ */
+
+#ifdef HAVE_RANDR
+
+# include <X11/extensions/Xrandr.h>
+
+Bool
+query_randr_extension (saver_info *si)
+{
+  saver_preferences *p = &si->prefs;
+  Bool ok = XRRQueryExtension (si->dpy,
+                               &si->randr_event_number,
+                               &si->randr_error_number);
+
+  if (ok)
+    {
+      int nscreens = ScreenCount (si->dpy);  /* number of *real* screens */
+      int i;
+
+      if (p->verbose_p)
+       fprintf (stderr, "%s: selecting RANDR events\n", blurb());
+      for (i = 0; i < nscreens; i++)
+# ifdef RRScreenChangeNotifyMask                 /* randr.h 1.5, 2002/09/29 */
+        XRRSelectInput (si->dpy, RootWindow (si->dpy, i),
+                        RRScreenChangeNotifyMask);
+# else  /* !RRScreenChangeNotifyMask */          /* Xrandr.h 1.4, 2001/06/07 */
+        XRRScreenChangeSelectInput (si->dpy, RootWindow (si->dpy, i), True);
+# endif /* !RRScreenChangeNotifyMask */
+    }
+
+  return ok;
+}
+
+#endif /* HAVE_RANDR */
+
+
 \f
 /* Figuring out what the appropriate XSetScreenSaver() parameters are
    (one wouldn't expect this to be rocket science.)
@@ -193,7 +231,7 @@ disable_builtin_screensaver (saver_info *si, Bool unblank_screen_p)
 
   /* I suspect (but am not sure) that DontAllowExposures might have
      something to do with powering off the monitor as well, at least
-     on some systems that don't support XDPMS?  Who know... */
+     on some systems that don't support XDPMS?  Who knows... */
   desired_allow_exp = AllowExposures;
 
   if (si->using_mit_saver_extension || si->using_sgi_saver_extension)
@@ -218,21 +256,22 @@ disable_builtin_screensaver (saver_info *si, Bool unblank_screen_p)
       desired_server_timeout = 0;
     }
 
+  /* XSetScreenSaver() generates BadValue if either timeout parameter
+     exceeds 15 bits (signed short.)  That is 09:06:07.
+   */
+  if (desired_server_timeout  > 0x7FFF) desired_server_timeout  = 0x7FFF;
+  if (desired_server_interval > 0x7FFF) desired_server_interval = 0x7FFF;
+
   if (desired_server_timeout != current_server_timeout ||
       desired_server_interval != current_server_interval ||
       desired_prefer_blank != current_prefer_blank ||
       desired_allow_exp != current_allow_exp)
     {
-      if (p->verbose_p && unblank_screen_p)
-        /* Used to print this all the time, but really, nobody cares.
-           Now only print it when verbose. */
-       fprintf (stderr,
-                "%s disabling server builtin screensaver.\n"
-                "%s: you can re-enable it with \"xset s on\".\n",
-                blurb(), blurb());
-
       if (p->verbose_p)
-       fprintf (stderr, "%s: (xset s %d %d; xset s %s; xset s %s)\n", blurb(),
+       fprintf (stderr,
+                 "%s: disabling server builtin screensaver:\n"
+                 "%s:  (xset s %d %d; xset s %s; xset s %s)\n",
+                 blurb(), blurb(),
                 desired_server_timeout, desired_server_interval,
                 (desired_prefer_blank ? "blank" : "noblank"),
                 (desired_allow_exp ? "expose" : "noexpose"));