X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=driver%2Fxset.c;h=d26ee1b25a08938164e8d2dbfa3429ed42b40616;hb=9c9d475ff889ed8be02e8ce8c17da28b93278fca;hp=1e5cff499a67e6bc69d4d5ed79dfcf73667c204c;hpb=2a991a811de4c7b22f812682b267b616a809fd9a;p=xscreensaver

diff --git a/driver/xset.c b/driver/xset.c
index 1e5cff49..d26ee1b2 100644
--- 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
@@ -129,7 +129,7 @@ init_sgi_saver_extension (saver_info *si)
        "%s: SGI SCREEN_SAVER extension exists, but can't be initialized;\n\
 		perhaps some other screensaver program is already running?\n",
 		   blurb());
-	  p->use_sgi_saver_extension = False;
+	  si->using_sgi_saver_extension = False;
 	  return;
 	}
     }
@@ -137,13 +137,65 @@ init_sgi_saver_extension (saver_info *si)
 
 #endif /* HAVE_SGI_SAVER_EXTENSION */
 
+
+/* XIDLE server extension hackery.
+ */
+
+#ifdef HAVE_XIDLE_EXTENSION
+
+# include <X11/extensions/xidle.h>
+
+Bool
+query_xidle_extension (saver_info *si)
+{
+  int event_number;
+  int error_number;
+  return XidleQueryExtension (si->dpy, &event_number, &error_number);
+}
+
+#endif /* HAVE_XIDLE_EXTENSION */
+
+
+
+/* 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++)
+        XRRSelectInput (si->dpy, RootWindow (si->dpy, i),
+                        RRScreenChangeNotifyMask);
+    }
+
+  return ok;
+}
+
+#endif /* HAVE_XIDLE_EXTENSION */
+
+
 
 /* Figuring out what the appropriate XSetScreenSaver() parameters are
    (one wouldn't expect this to be rocket science.)
  */
 
 void
-disable_builtin_screensaver (saver_info *si, Bool turn_off_p)
+disable_builtin_screensaver (saver_info *si, Bool unblank_screen_p)
 {
   saver_preferences *p = &si->prefs;
   int current_server_timeout, current_server_interval;
@@ -173,24 +225,29 @@ disable_builtin_screensaver (saver_info *si, Bool turn_off_p)
   desired_server_interval = 0;
 
   /* I suspect (but am not sure) that DontAllowExposures might have
-     something to do with powering off the monitor as well. */
+     something to do with powering off the monitor as well, at least
+     on some systems that don't support XDPMS?  Who know... */
   desired_allow_exp = AllowExposures;
 
-#if defined(HAVE_MIT_SAVER_EXTENSION) || defined(HAVE_SGI_SAVER_EXTENSION)
-  if (p->use_mit_saver_extension || p->use_sgi_saver_extension)
+  if (si->using_mit_saver_extension || si->using_sgi_saver_extension)
     {
       desired_server_timeout = (p->timeout / 1000);
 
       /* The SGI extension won't give us events unless blanking is on.
 	 I think (unsure right now) that the MIT extension is the opposite. */
-      if (p->use_sgi_saver_extension)
+      if (si->using_sgi_saver_extension)
 	desired_prefer_blank = PreferBlanking;
       else
 	desired_prefer_blank = DontPreferBlanking;
     }
   else
-#endif /* HAVE_MIT_SAVER_EXTENSION || HAVE_SGI_SAVER_EXTENSION */
     {
+      /* When we're not using an extension, set the server-side timeout to 0,
+	 so that the server never gets involved with screen blanking, and we
+	 do it all ourselves.  (However, when we *are* using an extension,
+	 we tell the server when to notify us, and rather than blanking the
+	 screen, the server will send us an X event telling us to blank.)
+       */
       desired_server_timeout = 0;
     }
 
@@ -199,18 +256,14 @@ disable_builtin_screensaver (saver_info *si, Bool turn_off_p)
       desired_prefer_blank != current_prefer_blank ||
       desired_allow_exp != current_allow_exp)
     {
-      if (desired_server_timeout == 0)
-	fprintf (stderr,
-		 "%s%sisabling server builtin screensaver.\n"
-		 "\tYou can re-enable it with \"xset s on\".\n",
-		(p->verbose_p ? "" : blurb()),
-		(p->verbose_p ? "\n\tD" : ": d"));
-
       if (p->verbose_p)
-	fprintf (stderr, "%s: (xset s %d %d %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 ? "noexpose" : "expose"));
+		 (desired_allow_exp ? "expose" : "noexpose"));
 
       XSetScreenSaver (si->dpy,
 		       desired_server_timeout, desired_server_interval,
@@ -226,16 +279,16 @@ disable_builtin_screensaver (saver_info *si, Bool turn_off_p)
       {
 	extension_initted = True;
 # ifdef HAVE_MIT_SAVER_EXTENSION
-	if (p->use_mit_saver_extension) init_mit_saver_extension(si);
+	if (si->using_mit_saver_extension) init_mit_saver_extension(si);
 # endif
 # ifdef HAVE_SGI_SAVER_EXTENSION
-	if (p->use_sgi_saver_extension) init_sgi_saver_extension(si);
+	if (si->using_sgi_saver_extension) init_sgi_saver_extension(si);
 # endif
       }
   }
 #endif /* HAVE_MIT_SAVER_EXTENSION || HAVE_SGI_SAVER_EXTENSION */
 
-  if (turn_off_p)
+  if (unblank_screen_p)
     /* Turn off the server builtin saver if it is now running. */
     XForceScreenSaver (si->dpy, ScreenSaverReset);
 }