- Use VidMode extension to determine the display dimensions more accurately...

- Use VidMode extension to determine the display dimensions more accurately when enabling full screen mode (fixes #534, should fix Debian #290392)
- Move view port and cursor to a sane position
- Check for VidMode extensions (libXxf86vm)

configure.ac

@@ -3389,12 +3389,12 @@ if test "${enable_glx}" != "no" &&
   CPPFLAGS="${CPPFLAGS_save}"
 fi
 
-dnl
-dnl  Check for the Xinerama extension
-dnl
 if test "${enable_xvideo}" != "no" &&
   (test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce" ||
    test "${enable_xvideo}" = "yes"); then
+dnl
+dnl  Check for the Xinerama extension
+dnl
   ac_cv_have_xinerama="no"
   CPPFLAGS="${CPPFLAGS_save} ${X_CFLAGS}"
   CFLAGS="${CFLAGS_save} ${X_LIBS} ${X_PRE_LIBS} -lX11 -lXext"
@@ -3418,6 +3418,38 @@ if test "${enable_xvideo}" != "no" &&
   fi
   CFLAGS="${CFLAGS_save}"
   CPPFLAGS="${CPPFLAGS_save}"
+
+dnl
+dnl  Check for XF86VidMode extension
+dnl
+  ac_cv_have_xf86vidmode="no"
+  CPPFLAGS="${CPPFLAGS_save} ${X_CFLAGS}"
+  CFLAGS="${CFLAGS_save} ${X_LIBS} ${X_PRE_LIBS} -lX11 -lXext"
+  AC_CHECK_HEADERS(X11/extensions/xf86vmode.h,[
+    AC_CHECK_LIB(Xxf86vm_pic, XF86VidModeGetViewPort,[
+      VLC_ADD_LDFLAGS([xvideo],[-lXxf86vm_pic])
+      VLC_ADD_LDFLAGS([x11],[-lXxf86vm_pic])
+      VLC_ADD_LDFLAGS([glx],[-lXxf86vm_pic])
+      ac_cv_have_xf86vidmode="yes"
+    ],[
+      AC_CHECK_LIB(Xxf86vm, XF86VidModeGetViewPort,[
+        VLC_ADD_LDFLAGS([xvideo],[-lXxf86vm])
+        VLC_ADD_LDFLAGS([x11],[-lXxf86vm])
+        VLC_ADD_LDFLAGS([glx],[-lXxf86vm])
+        ac_cv_have_xf86vidmode="yes"
+      ])
+    ])
+  ],[true],
+[#ifdef HAVE_X11_XLIB_H
+# include <X11/Xlib.h>
+#endif]
+   )
+  AS_IF([test "${ac_cv_have_xf86vidmode}" = "yes"],
+    [AC_DEFINE(HAVE_XF86VIDMODE, 1, [Define this if you have libXxf86vm installed])
+  ])
+  CFLAGS="${CFLAGS_save}"
+  CPPFLAGS="${CPPFLAGS_save}"
+
 fi
 
 dnl

modules/video_output/x11/xcommon.c

 /*****************************************************************************
  * xcommon.c: Functions common to the X11 and XVideo plugins
  *****************************************************************************
- * Copyright (C) 1998-2001 the VideoLAN team
+ * Copyright (C) 1998-2006 the VideoLAN team
  * $Id$
  *
  * Authors: Vincent Seguin <seguin@via.ecp.fr>
@@ -76,6 +76,10 @@
 #   include <X11/extensions/Xinerama.h>
 #endif
 
+#ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
+#   include <X11/extensions/xf86vmode.h>
+#endif
+
 #include "xcommon.h"
 
 /*****************************************************************************
@@ -1568,12 +1572,39 @@ static void ToggleFullScreen ( vout_thread_t *p_vout )
         {
             /* The window wasn't necessarily created at the requested size */
             p_vout->p_sys->p_win->i_x = p_vout->p_sys->p_win->i_y = 0;
-            p_vout->p_sys->p_win->i_width =
-                DisplayWidth( p_vout->p_sys->p_display,
-                              p_vout->p_sys->i_screen );
-            p_vout->p_sys->p_win->i_height =
-                DisplayHeight( p_vout->p_sys->p_display,
-                               p_vout->p_sys->i_screen );
+
+#ifdef HAVE_XF86VIDMODE
+            XF86VidModeModeLine mode;
+            int i_dummy;
+
+            if( XF86VidModeGetModeLine( p_vout->p_sys->p_display,
+                                        p_vout->p_sys->i_screen, &i_dummy,
+                                        &mode ) )
+            {
+                p_vout->p_sys->p_win->i_width = mode.hdisplay;
+                p_vout->p_sys->p_win->i_height = mode.vdisplay;
+
+                /* move cursor to the middle of the window to prevent
+                 * unwanted display move if the display is smaller than the
+                 * full desktop */
+                XWarpPointer( p_vout->p_sys->p_display, None,
+                              p_vout->p_sys->p_win->base_window, 0, 0, 0, 0,
+                              mode.hdisplay / 2 , mode.vdisplay / 2 );
+                /* force desktop view to upper left corner */
+                XF86VidModeSetViewPort( p_vout->p_sys->p_display,
+                                        p_vout->p_sys->i_screen, 0, 0 );
+            }
+            else
+#endif
+            {
+                p_vout->p_sys->p_win->i_width =
+                    DisplayWidth( p_vout->p_sys->p_display,
+                                p_vout->p_sys->i_screen );
+                p_vout->p_sys->p_win->i_height =
+                    DisplayHeight( p_vout->p_sys->p_display,
+                                p_vout->p_sys->i_screen );
+            }
+
         }
 
         XMoveResizeWindow( p_vout->p_sys->p_display,