wayland/actor-surface: Queue redraw for frame callbackgnome-3-32

A frame callback without damage is still expected to be responded to.
Implement this by simply queuing damage if there are any frame callbacks
requested and there is no damage yet. If there already is damage,
we'll be queued already, but with more correct damage. Without we simply
need to make sure we flush the callbacks if any area of surface is not
occluded.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/457

https://gitlab.gnome.org/GNOME/mutter/merge_requests/839

(cherry picked from commit d49d10b14f4e0fa80e6867979b26fab383610b39)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1813>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/wayland/meta-wayland-actor-surface.c b/src/wayland/meta-wayland-actor-surface.c
index 2471de0a9..1b7b74953 100644
--- a/src/wayland/meta-wayland-actor-surface.c
+++ b/src/wayland/meta-wayland-actor-surface.c
@@ -253,10 +253,20 @@ meta_wayland_actor_surface_commit (MetaWaylandSurfaceRole  *surface_role,
 {
   MetaWaylandActorSurface *actor_surface =
     META_WAYLAND_ACTOR_SURFACE (surface_role);
+  MetaWaylandActorSurfacePrivate *priv =
+    meta_wayland_actor_surface_get_instance_private (actor_surface);
   MetaWaylandSurface *surface =
     meta_wayland_surface_role_get_surface (surface_role);
   MetaWaylandSurface *toplevel_surface;
 
+  if (!priv->actor)
+    return;
+
+  if (!wl_list_empty (&pending->frame_callback_list) &&
+      cairo_region_is_empty (pending->surface_damage) &&
+      cairo_region_is_empty (pending->buffer_damage))
+    clutter_actor_queue_redraw (CLUTTER_ACTOR (priv->actor));
+
   meta_wayland_actor_surface_queue_frame_callbacks (actor_surface, pending);
 
   toplevel_surface = meta_wayland_surface_get_toplevel (surface);