vout: set fullscreen directly on window rather than display

(cherry picked from commit cf5332b7515b09327e535ca56685556c07925afa)

Ref #13647
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

src/video_output/video_output.c

@@ -1264,7 +1264,14 @@ static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
 
 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
 {
-    vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
+    vout_window_t *window = vout->p->window.object;
+
+    if (window != NULL)
+        vout_window_SetFullScreen(window, fullscreen);
+    else
+    if (vout->p->display.vd != NULL)
+        vout_display_SendEvent(vout->p->display.vd,
+                               VOUT_DISPLAY_EVENT_FULLSCREEN, fullscreen);
 }
 
 static void ThreadChangeWindowState(vout_thread_t *vout, unsigned state)