]> git.sesse.net Git - vlc/blobdiff - modules/video_output/x11/xcommon.c
X11: I don't want random local users accessing my videos!
[vlc] / modules / video_output / x11 / xcommon.c
index 2b5129fb42bb737634e8f70c21330039c3d03151..1947d21f95f789d6bdcc78d821b494e0fbb52b6b 100644 (file)
@@ -116,16 +116,7 @@ static void DestroyWindow  ( vout_thread_t *, x11_window_t * );
 static int  NewPicture     ( vout_thread_t *, picture_t * );
 static void FreePicture    ( vout_thread_t *, picture_t * );
 
-#ifndef MODULE_NAME_IS_glx
-static IMAGE_TYPE *CreateImage    ( vout_thread_t *,
-                                    Display *, EXTRA_ARGS, int, int );
-#endif
-
 #ifdef HAVE_SYS_SHM_H
-#ifndef MODULE_NAME_IS_glx
-IMAGE_TYPE *CreateShmImage ( vout_thread_t *,
-                                    Display *, EXTRA_ARGS_SHM, int, int );
-#endif
 static int i_shm_major = 0;
 #endif
 
@@ -295,7 +286,7 @@ int Activate ( vlc_object_t *p_this )
             }
         }
     }
-    p_vout->output.i_chroma = X112VLC_FOURCC(p_vout->output.i_chroma);
+    p_vout->output.i_chroma = vlc_fourcc_GetCodec( VIDEO_ES, X112VLC_FOURCC(p_vout->output.i_chroma) );
 #elif defined(MODULE_NAME_IS_glx)
     {
         int i_opcode, i_evt, i_err = 0;
@@ -428,7 +419,7 @@ int Activate ( vlc_object_t *p_this )
     if( checkXvMCCap( p_vout ) == VLC_EGENERIC )
     {
         msg_Err( p_vout, "no XVMC capability found" );
-        Deactivate( p_vout );
+        Deactivate( p_this );
         return VLC_EGENERIC;
     }
     subpicture_t sub_pic;
@@ -821,7 +812,7 @@ static int InitVideo( vout_thread_t *p_vout )
 #if XvVersion < 2 || ( XvVersion == 2 && XvRevision < 2 )
     switch( p_vout->output.i_chroma )
     {
-        case VLC_FOURCC('R','V','1','6'):
+        case VLC_CODEC_RGB16:
 #if defined( WORDS_BIGENDIAN )
             p_vout->output.i_rmask = 0xf800;
             p_vout->output.i_gmask = 0x07e0;
@@ -832,7 +823,7 @@ static int InitVideo( vout_thread_t *p_vout )
             p_vout->output.i_bmask = 0xf800;
 #endif
             break;
-        case VLC_FOURCC('R','V','1','5'):
+        case VLC_CODEC_RGB15:
 #if defined( WORDS_BIGENDIAN )
             p_vout->output.i_rmask = 0x7c00;
             p_vout->output.i_gmask = 0x03e0;
@@ -852,14 +843,14 @@ static int InitVideo( vout_thread_t *p_vout )
     switch( p_vout->p_sys->i_screen_depth )
     {
         case 8: /* FIXME: set the palette */
-            p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2'); break;
+            p_vout->output.i_chroma = VLC_CODEC_RGB8; break;
         case 15:
-            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5'); break;
+            p_vout->output.i_chroma = VLC_CODEC_RGB15; break;
         case 16:
-            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6'); break;
+            p_vout->output.i_chroma = VLC_CODEC_RGB16; break;
         case 24:
         case 32:
-            p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2'); break;
+            p_vout->output.i_chroma = VLC_CODEC_RGB32; break;
         default:
             msg_Err( p_vout, "unknown screen depth %i",
                      p_vout->p_sys->i_screen_depth );
@@ -935,12 +926,12 @@ static int InitVideo( vout_thread_t *p_vout )
         I_OUTPUTPICTURES++;
     }
 
-    if( p_vout->output.i_chroma == VLC_FOURCC('Y','V','1','2') )
+    if( p_vout->output.i_chroma == VLC_CODEC_YV12 )
     {
         /* U and V inverted compared to I420
          * Fixme: this should be handled by the vout core */
-        p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
-        p_vout->fmt_out.i_chroma = VLC_FOURCC('I','4','2','0');
+        p_vout->output.i_chroma = VLC_CODEC_I420;
+        p_vout->fmt_out.i_chroma = VLC_CODEC_I420;
     }
 
     return VLC_SUCCESS;
@@ -1076,7 +1067,7 @@ static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
     if( p_vout->p_sys->i_shm_opcode )
     {
         /* Display rendered image using shared memory extension */
-#   if defined(MODULE_NAME_IS_xvideo) || defined(MODULE_NAME_IS_xvmc)
+#if defined(MODULE_NAME_IS_xvideo) || defined(MODULE_NAME_IS_xvmc)
         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
                        p_vout->p_sys->p_win->video_window,
                        p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
@@ -1086,7 +1077,7 @@ static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
                        p_vout->fmt_out.i_visible_height,
                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
                        False /* Don't put True here or you'll waste your CPU */ );
-#   else
+#else
         XShmPutImage( p_vout->p_sys->p_display,
                       p_vout->p_sys->p_win->video_window,
                       p_vout->p_sys->p_win->gc, p_pic->p_sys->p_image,
@@ -1096,7 +1087,7 @@ static void DisplayVideo( vout_thread_t *p_vout, picture_t *p_pic )
                       p_vout->fmt_out.i_visible_width,
                       p_vout->fmt_out.i_visible_height,
                       False /* Don't put True here ! */ );
-#   endif
+#endif
     }
     else
 #endif /* HAVE_SYS_SHM_H */
@@ -1241,6 +1232,8 @@ static int ManageVideo( vout_thread_t *p_vout )
                     val.i_int |= 1;
                     var_Set( p_vout, "mouse-button-down", val );
 
+                    var_SetBool( p_vout->p_libvlc, "intf-popupmenu", false );
+
                     /* detect double-clicks */
                     if( ( ((XButtonEvent *)&xevent)->time -
                           p_vout->p_sys->i_time_button_last_pressed ) < 300 )
@@ -1261,6 +1254,7 @@ static int ManageVideo( vout_thread_t *p_vout )
                     var_Get( p_vout, "mouse-button-down", &val );
                     val.i_int |= 4;
                     var_Set( p_vout, "mouse-button-down", val );
+                    var_SetBool( p_vout->p_libvlc, "intf-popupmenu", true );
                     break;
 
                 case Button4:
@@ -1288,7 +1282,6 @@ static int ManageVideo( vout_thread_t *p_vout )
                         var_Set( p_vout, "mouse-button-down", val );
 
                         var_SetBool( p_vout, "mouse-clicked", true );
-                        var_SetBool( p_vout->p_libvlc, "intf-popupmenu", false );
                     }
                     break;
 
@@ -1310,7 +1303,6 @@ static int ManageVideo( vout_thread_t *p_vout )
                         val.i_int &= ~4;
                         var_Set( p_vout, "mouse-button-down", val );
 
-                        var_SetBool( p_vout->p_libvlc, "intf-popupmenu", true );
                     }
                     break;
 
@@ -1510,12 +1502,11 @@ static int ManageVideo( vout_thread_t *p_vout )
     {
         unsigned int i_width, i_height, i_x, i_y;
 
-        p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
-
 #ifdef MODULE_NAME_IS_x11
         /* We need to signal the vout thread about the size change because it
          * is doing the rescaling */
-        p_vout->i_changes |= VOUT_SIZE_CHANGE;
+#else
+        p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 #endif
 
         vout_PlacePicture( p_vout, p_vout->p_sys->p_win->i_width,
@@ -1621,6 +1612,8 @@ static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
     {
         p_win->owner_window = vout_RequestXWindow( p_vout, &p_win->i_x,
                               &p_win->i_y, &p_win->i_width, &p_win->i_height );
+        if( !p_win->owner_window )
+            return VLC_EGENERIC;
         xsize_hints.base_width  = xsize_hints.width = p_win->i_width;
         xsize_hints.base_height = xsize_hints.height = p_win->i_height;
         xsize_hints.flags       = PSize | PMinSize;
@@ -1631,6 +1624,30 @@ static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
             xsize_hints.y = p_win->i_y;
             xsize_hints.flags |= PPosition;
         }
+
+        /* Select events we are interested in. */
+        XSelectInput( p_vout->p_sys->p_display,
+                      p_win->owner_window->handle.xid, StructureNotifyMask );
+
+        /* Get the parent window's geometry information */
+        XGetGeometry( p_vout->p_sys->p_display,
+                      p_win->owner_window->handle.xid,
+                      &(Window){ 0 }, &(int){ 0 }, &(int){ 0 },
+                      &p_win->i_width,
+                      &p_win->i_height,
+                      &(unsigned){ 0 }, &(unsigned){ 0 } );
+
+        /* From man XSelectInput: only one client at a time can select a
+         * ButtonPress event, so we need to open a new window anyway. */
+        p_win->base_window =
+            XCreateWindow( p_vout->p_sys->p_display,
+                           p_win->owner_window->handle.xid,
+                           0, 0,
+                           p_win->i_width, p_win->i_height,
+                           0,
+                           0, CopyFromParent, 0,
+                           CWBackingStore | CWBackPixel | CWEventMask,
+                           &xwindow_attributes );
     }
     else
     {
@@ -1641,10 +1658,7 @@ static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
         p_win->i_height =
             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen );
-    }
 
-    if( !p_win->owner_window )
-    {
         /* Create the window and set hints - the window must receive
          * ConfigureNotify events, and until it is displayed, Expose and
          * MapNotify events. */
@@ -1678,66 +1692,6 @@ static int CreateWindow( vout_thread_t *p_vout, x11_window_t *p_win )
                         p_win->base_window, val.psz_string );
         }
         free( val.psz_string );
-
-        if( !p_vout->b_fullscreen )
-        {
-            const char *argv[] = { "vlc", NULL };
-
-            /* Set window manager hints and properties: size hints, command,
-             * window's name, and accepted protocols */
-            XSetWMNormalHints( p_vout->p_sys->p_display,
-                               p_win->base_window, &xsize_hints );
-            XSetCommand( p_vout->p_sys->p_display, p_win->base_window,
-                         (char**)argv, 1 );
-
-            if( !var_GetBool( p_vout, "video-deco") )
-            {
-                Atom prop;
-                mwmhints_t mwmhints;
-
-                mwmhints.flags = MWM_HINTS_DECORATIONS;
-                mwmhints.decorations = False;
-
-                prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
-                                    False );
-
-                XChangeProperty( p_vout->p_sys->p_display,
-                                 p_win->base_window,
-                                 prop, prop, 32, PropModeReplace,
-                                 (unsigned char *)&mwmhints,
-                                 PROP_MWM_HINTS_ELEMENTS );
-            }
-        }
-    }
-    else
-    {
-        Window dummy1;
-        int dummy2, dummy3;
-        unsigned int dummy4, dummy5;
-
-        /* Select events we are interested in. */
-        XSelectInput( p_vout->p_sys->p_display,
-                      p_win->owner_window->handle.xid, StructureNotifyMask );
-
-        /* Get the parent window's geometry information */
-        XGetGeometry( p_vout->p_sys->p_display,
-                      p_win->owner_window->handle.xid,
-                      &dummy1, &dummy2, &dummy3,
-                      &p_win->i_width,
-                      &p_win->i_height,
-                      &dummy4, &dummy5 );
-
-        /* From man XSelectInput: only one client at a time can select a
-         * ButtonPress event, so we need to open a new window anyway. */
-        p_win->base_window =
-            XCreateWindow( p_vout->p_sys->p_display,
-                           p_win->owner_window->handle.xid,
-                           0, 0,
-                           p_win->i_width, p_win->i_height,
-                           0,
-                           0, CopyFromParent, 0,
-                           CWBackingStore | CWBackPixel | CWEventMask,
-                           &xwindow_attributes );
     }
 
     if( (p_win->wm_protocols == None)        /* use WM_DELETE_WINDOW */
@@ -1863,6 +1817,20 @@ static void DestroyWindow( vout_thread_t *p_vout, x11_window_t *p_win )
     XUnmapWindow( p_vout->p_sys->p_display, p_win->base_window );
     XDestroyWindow( p_vout->p_sys->p_display, p_win->base_window );
 
+    /* make sure base window is destroyed before proceeding further */
+    bool b_destroy_notify = false;
+    do
+    {
+        XEvent      xevent;
+        XWindowEvent( p_vout->p_sys->p_display, p_win->base_window,
+                      SubstructureNotifyMask | StructureNotifyMask, &xevent);
+        if( (xevent.type == DestroyNotify)
+                 && (xevent.xmap.window == p_win->base_window) )
+        {
+            b_destroy_notify = true;
+        }
+    } while( !b_destroy_notify );
+
     vout_ReleaseWindow( p_win->owner_window );
 }
 
@@ -1898,9 +1866,10 @@ static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 #endif
 
     /* Fill in picture_t fields */
-    vout_InitPicture( VLC_OBJECT(p_vout), p_pic, p_vout->output.i_chroma,
-                      p_vout->output.i_width, p_vout->output.i_height,
-                      p_vout->output.i_aspect );
+    if( picture_Setup( p_pic, p_vout->output.i_chroma,
+                       p_vout->output.i_width, p_vout->output.i_height,
+                       p_vout->output.i_aspect ) )
+        return -1;
 
 #ifdef HAVE_SYS_SHM_H
     if( p_vout->p_sys->i_shm_opcode )
@@ -1908,13 +1877,13 @@ static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
         /* Create image using XShm extension */
         p_pic->p_sys->p_image =
             CreateShmImage( p_vout, p_vout->p_sys->p_display,
-#   if defined(MODULE_NAME_IS_xvideo) || defined(MODULE_NAME_IS_xvmc)
+#if defined(MODULE_NAME_IS_xvideo) || defined(MODULE_NAME_IS_xvmc)
                             p_vout->p_sys->i_xvport,
                             VLC2X11_FOURCC(p_vout->output.i_chroma),
-#   else
+#else
                             p_vout->p_sys->p_visual,
                             p_vout->p_sys->i_screen_depth,
-#   endif
+#endif
                             &p_pic->p_sys->shminfo,
                             p_vout->output.i_width, p_vout->output.i_height );
     }
@@ -1954,15 +1923,15 @@ static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
     switch( p_vout->output.i_chroma )
     {
 #if defined(MODULE_NAME_IS_xvideo) || defined(MODULE_NAME_IS_xvmc)
-        case VLC_FOURCC('I','4','2','0'):
-        case VLC_FOURCC('Y','V','1','2'):
-        case VLC_FOURCC('Y','2','1','1'):
-        case VLC_FOURCC('Y','U','Y','2'):
-        case VLC_FOURCC('U','Y','V','Y'):
-        case VLC_FOURCC('R','V','1','5'):
-        case VLC_FOURCC('R','V','1','6'):
-        case VLC_FOURCC('R','V','2','4'): /* Fixme: pixel pitch == 4 ? */
-        case VLC_FOURCC('R','V','3','2'):
+        case VLC_CODEC_I420:
+        case VLC_CODEC_YV12:
+        case VLC_CODEC_Y211:
+        case VLC_CODEC_YUYV:
+        case VLC_CODEC_UYVY:
+        case VLC_CODEC_RGB15:
+        case VLC_CODEC_RGB16:
+        case VLC_CODEC_RGB24: /* Fixme: pixel pitch == 4 ? */
+        case VLC_CODEC_RGB32:
 
             for( i_plane = 0; i_plane < p_pic->p_sys->p_image->num_planes;
                  i_plane++ )
@@ -1972,7 +1941,7 @@ static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
                 p_pic->p[i_plane].i_pitch =
                     p_pic->p_sys->p_image->pitches[i_plane];
             }
-            if( p_vout->output.i_chroma == VLC_FOURCC('Y','V','1','2') )
+            if( p_vout->output.i_chroma == VLC_CODEC_YV12 )
             {
                 /* U and V inverted compared to I420
                  * Fixme: this should be handled by the vout core */
@@ -1985,11 +1954,11 @@ static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
             break;
 
 #else
-        case VLC_FOURCC('R','G','B','2'):
-        case VLC_FOURCC('R','V','1','6'):
-        case VLC_FOURCC('R','V','1','5'):
-        case VLC_FOURCC('R','V','2','4'):
-        case VLC_FOURCC('R','V','3','2'):
+        case VLC_CODEC_RGB8:
+        case VLC_CODEC_RGB16:
+        case VLC_CODEC_RGB15:
+        case VLC_CODEC_RGB24:
+        case VLC_CODEC_RGB32:
 
             p_pic->p->i_lines = p_pic->p_sys->p_image->height;
             p_pic->p->i_visible_lines = p_pic->p_sys->p_image->height;
@@ -1998,7 +1967,7 @@ static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
             p_pic->p->i_pitch = p_pic->p_sys->p_image->bytes_per_line;
 
             /* p_pic->p->i_pixel_pitch = 4 for RV24 but this should be set
-             * properly by vout_InitPicture() */
+             * properly by picture_Setup() */
             p_pic->p->i_visible_pitch = p_pic->p->i_pixel_pitch
                                          * p_pic->p_sys->p_image->width;
             break;
@@ -2093,7 +2062,7 @@ static void ToggleFullScreen ( vout_thread_t *p_vout )
         Window parent_win;
         Window child_win;
         XWindowAttributes win_attr;
-        int screen_x,screen_y;
+        int screen_x,screen_y,win_width,win_height;
 
         XGetWindowAttributes(
                 p_vout->p_sys->p_display,
@@ -2116,7 +2085,10 @@ static void ToggleFullScreen ( vout_thread_t *p_vout )
                 &screen_x,&screen_y,
                 &child_win);
 
-        msg_Dbg( p_vout, "X %d/%d Y %d/%d", win_attr.x,screen_x,win_attr.y,screen_y);
+        win_width = p_vout->p_sys->p_win->i_width;
+        win_height = p_vout->p_sys->p_win->i_height;
+        msg_Dbg( p_vout, "X %d/%d Y %d/%d",
+            win_width, screen_x, win_height, screen_y );
         /* screen_x and screen_y are current position */
 
         p_vout->p_sys->b_altfullscreen =
@@ -2234,18 +2206,44 @@ static void ToggleFullScreen ( vout_thread_t *p_vout )
              * otherwise use that screen where window is */
             if( SCREEN >= i_num_screens || SCREEN < 0 )
             {
+                int overlapping=0;
+                int rightmost_left=0;
+                int leftmost_right=0;
+                int bottommost_top=0;
+                int topmost_bottom=0;
+                int best_screen=0;
+                int best_overlapping=0;
+                int dx,dy;
                 msg_Dbg( p_vout, "requested screen number invalid (%d/%d)", SCREEN, i_num_screens );
-#define left screens[SCREEN].x_org
-#define right left + screens[SCREEN].width
+#define left ( screens[SCREEN].x_org )
+#define right ( left + screens[SCREEN].width )
 #define top screens[SCREEN].y_org
-#define bottom top + screens[SCREEN].height
+#define bottom ( top + screens[SCREEN].height )
 
-                 for( SCREEN = i_num_screens-1; SCREEN > 0; SCREEN--)
+                /* Code mostly same as http://superswitcher.googlecode.com/svn/trunk/src/xinerama.c
+                 * by Nigel Tao, as it was pretty clean implemention what's needed here. Checks what display
+                 * contains most of the window, and use that as fullscreen screen instead screen what
+                 * contains videowindows 0.0 */
+                 for( SCREEN = i_num_screens-1; SCREEN >= 0; SCREEN--)
                  {
-                     if( left <= screen_x && screen_x <= right &&
-                             top <= screen_y && screen_y <= bottom )
-                         break;
+                     rightmost_left = __MAX( left, screen_x );
+                     leftmost_right = __MIN( right, screen_x + win_width );
+                     bottommost_top = __MAX( top, screen_y );
+                     topmost_bottom = __MIN( bottom , screen_y + win_height );
+                     dx = leftmost_right - rightmost_left;
+                     dy = topmost_bottom - bottommost_top;
+                     overlapping=0;
+                     if ( dx > 0 && dy > 0 )
+                         overlapping = dx*dy;
+                     if( SCREEN == (i_num_screens-1) ||
+                             overlapping > best_overlapping )
+                     {
+                         best_overlapping = overlapping;
+                         best_screen = SCREEN;
+                     }
                  }
+                 msg_Dbg( p_vout, "setting best screen to %d", best_screen );
+                 SCREEN = best_screen;
 #undef bottom
 #undef top
 #undef right
@@ -2908,9 +2906,22 @@ IMAGE_TYPE * CreateShmImage( vout_thread_t *p_vout,
         return NULL;
     }
 
-    /* Allocate shared memory segment - 0776 set the access permission
-     * rights (like umask), they are not yet supported by all X servers */
-    p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
+    /* For too big image, the buffer returned is sometimes too small, prevent
+     * VLC to segfault because of it
+     * FIXME is it normal ? Is there a way to detect it
+     * before (XvQueryBestSize did not) ? */
+    if( p_image->width < i_width || p_image->height < i_height )
+    {
+        msg_Err( p_vout, "cannot allocate shared image data with the right size "
+                         "(%dx%d instead of %dx%d)",
+                         p_image->width, p_image->height,
+                         i_width, i_height );
+        IMAGE_FREE( p_image );
+        return NULL;
+    }
+
+    /* Allocate shared memory segment. */
+    p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0600 );
     if( p_shm->shmid < 0 )
     {
         msg_Err( p_vout, "cannot allocate shared image data (%m)" );
@@ -3103,8 +3114,6 @@ static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 {
     bool b_arg;
     unsigned int i_width, i_height;
-    unsigned int *pi_width, *pi_height;
-    Drawable d = 0;
 
     switch( i_query )
     {
@@ -3289,47 +3298,28 @@ static int ConvertKey( int i_key )
  *****************************************************************************/
 static int WindowOnTop( vout_thread_t *p_vout, bool b_on_top )
 {
-    if( p_vout->p_sys->b_net_wm_state_stays_on_top )
-    {
-        XClientMessageEvent event;
+    XClientMessageEvent event;
 
-        memset( &event, 0, sizeof( XClientMessageEvent ) );
+    memset( &event, 0, sizeof( XClientMessageEvent ) );
+    event.type = ClientMessage;
+    event.message_type = p_vout->p_sys->net_wm_state;
+    event.display = p_vout->p_sys->p_display;
+    event.window = p_vout->p_sys->p_win->base_window;
+    event.format = 32;
+    event.data.l[ 0 ] = b_on_top; /* set property */
 
-        event.type = ClientMessage;
-        event.message_type = p_vout->p_sys->net_wm_state;
-        event.display = p_vout->p_sys->p_display;
-        event.window = p_vout->p_sys->p_win->base_window;
-        event.format = 32;
-        event.data.l[ 0 ] = b_on_top; /* set property */
+    if( p_vout->p_sys->b_net_wm_state_stays_on_top )
         event.data.l[ 1 ] = p_vout->p_sys->net_wm_state_stays_on_top;
-
-        XSendEvent( p_vout->p_sys->p_display,
-                    DefaultRootWindow( p_vout->p_sys->p_display ),
-                    False, SubstructureRedirectMask,
-                    (XEvent*)&event );
-    }
-
-    /* use _NET_WM_STATE_ABOVE if window manager
-     * doesn't handle _NET_WM_STATE_STAYS_ON_TOP */
     else if( p_vout->p_sys->b_net_wm_state_above )
-    {
-        XClientMessageEvent event;
-
-        memset( &event, 0, sizeof( XClientMessageEvent ) );
-
-        event.type = ClientMessage;
-        event.message_type = p_vout->p_sys->net_wm_state;
-        event.display = p_vout->p_sys->p_display;
-        event.window = p_vout->p_sys->p_win->base_window;
-        event.format = 32;
-        event.data.l[ 0 ] = b_on_top; /* set property */
+        /* use _NET_WM_STATE_ABOVE if window manager
+         * doesn't handle _NET_WM_STATE_STAYS_ON_TOP */
         event.data.l[ 1 ] = p_vout->p_sys->net_wm_state_above;
+    else
+        return VLC_EGENERIC;
 
-        XSendEvent( p_vout->p_sys->p_display,
-                    DefaultRootWindow( p_vout->p_sys->p_display ),
-                    False, SubstructureRedirectMask,
-                    (XEvent*)&event );
-    }
-
+    XSendEvent( p_vout->p_sys->p_display,
+                DefaultRootWindow( p_vout->p_sys->p_display ),
+                False, SubstructureRedirectMask,
+                (XEvent*)&event );
     return VLC_SUCCESS;
 }