Fix fullscreen view rendering crash
See issue for reproduction details. When a fullscreen view is
unmapped and there's a preceding transaction waiting, there may be
neither a saved buffer or a surface to render. This change matches
the equivalent code in render_view.
@@ -1017,7 +1017,7 @@ void output_render(struct sway_output *output, struct timespec *when,
if (fullscreen_con->view) {
if (fullscreen_con->view->saved_buffer) {
render_saved_view(fullscreen_con->view, output, damage, 1.0f);
- } else {
+ } else if (fullscreen_con->view->surface) {
render_view_toplevels(fullscreen_con->view,
output, damage, 1.0f);
}
