Add support for the _NET_WM_BYPASS_COMPOSITOR hint

This hints to window managers to unredirect the window to improve performance.
libsdl-org · Jul 21, 2013 · 7f5b43b · 7f5b43b
1 parent f80f765
commit 7f5b43b
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/video/x11/SDL_x11window.c b/src/video/x11/SDL_x11window.c
@@ -339,6 +339,8 @@ X11_CreateWindow(_THIS, SDL_Window * window)
     XSizeHints *sizehints;
     XWMHints *wmhints;
     XClassHint *classhints;
+    const long _NET_WM_BYPASS_COMPOSITOR_HINT_ON = 1;
+    Atom _NET_WM_BYPASS_COMPOSITOR;
     Atom _NET_WM_WINDOW_TYPE;
     Atom _NET_WM_WINDOW_TYPE_NORMAL;
     Atom _NET_WM_PID;
@@ -532,6 +534,10 @@ X11_CreateWindow(_THIS, SDL_Window * window)
                     PropModeReplace,
                     (unsigned char *)&_NET_WM_WINDOW_TYPE_NORMAL, 1);
 
+    _NET_WM_BYPASS_COMPOSITOR = XInternAtom(display, "_NET_WM_BYPASS_COMPOSITOR", False);
+    XChangeProperty(display, w, _NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32,
+                    PropModeReplace,
+                    (unsigned char *)&_NET_WM_BYPASS_COMPOSITOR_HINT_ON, 1);
 
     {
         Atom protocols[] = {