[mutter/gbsneto/cleanup-x11-from-window-actor: 4/10] window-actor: Add frame_complete(), pre_paint() and post_paint()

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 9d9eba5b67b07b73fe61ac00f922daa649f7ae40
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Dec 21 18:51:02 2018 -0200

    window-actor: Add frame_complete(), pre_paint() and post_paint()
    
    These are required vfuncs to be implemented by the specialized
    classes. Also add stub implementations of these new functions
    on the subclasses.

 src/compositor/meta-window-actor-private.h |  7 +++++++
 src/compositor/meta-window-actor-wayland.c | 22 ++++++++++++++++++++++
 src/compositor/meta-window-actor-x11.c     | 22 ++++++++++++++++++++++
 src/compositor/meta-window-actor.c         |  8 ++++++++
 4 files changed, 59 insertions(+)
---
diff --git a/src/compositor/meta-window-actor-private.h b/src/compositor/meta-window-actor-private.h
index af371afd7..7a0a1f5f9 100644
--- a/src/compositor/meta-window-actor-private.h
+++ b/src/compositor/meta-window-actor-private.h
@@ -12,6 +12,13 @@
 struct _MetaWindowActorClass
 {
   ClutterActorClass parent;
+
+  void (*frame_complete) (MetaWindowActor  *actor,
+                          ClutterFrameInfo *frame_info,
+                          gint64            presentation_time);
+
+  void (*pre_paint)      (MetaWindowActor *actor);
+  void (*post_paint)     (MetaWindowActor *actor);
 };
 
 MetaWindowActor *meta_window_actor_new (MetaWindow *window);
diff --git a/src/compositor/meta-window-actor-wayland.c b/src/compositor/meta-window-actor-wayland.c
index 851b413a2..2ff9e82e8 100644
--- a/src/compositor/meta-window-actor-wayland.c
+++ b/src/compositor/meta-window-actor-wayland.c
@@ -30,9 +30,31 @@ struct _MetaWindowActorWayland
 
 G_DEFINE_TYPE (MetaWindowActorWayland, meta_window_actor_wayland, META_TYPE_WINDOW_ACTOR)
 
+static void
+meta_window_actor_wayland_frame_complete (MetaWindowActor  *actor,
+                                          ClutterFrameInfo *frame_info,
+                                          gint64            presentation_time)
+{
+}
+
+static void
+meta_window_actor_wayland_pre_paint (MetaWindowActor *actor)
+{
+}
+
+static void
+meta_window_actor_wayland_post_paint (MetaWindowActor *actor)
+{
+}
+
 static void
 meta_window_actor_wayland_class_init (MetaWindowActorWaylandClass *klass)
 {
+  MetaWindowActorClass *window_actor_class = META_WINDOW_ACTOR_CLASS (klass);
+
+  window_actor_class->frame_complete = meta_window_actor_wayland_frame_complete;
+  window_actor_class->pre_paint = meta_window_actor_wayland_pre_paint;
+  window_actor_class->post_paint = meta_window_actor_wayland_post_paint;
 }
 
 static void
diff --git a/src/compositor/meta-window-actor-x11.c b/src/compositor/meta-window-actor-x11.c
index fe41e81f0..a28405248 100644
--- a/src/compositor/meta-window-actor-x11.c
+++ b/src/compositor/meta-window-actor-x11.c
@@ -30,9 +30,31 @@ struct _MetaWindowActorX11
 
 G_DEFINE_TYPE (MetaWindowActorX11, meta_window_actor_x11, META_TYPE_WINDOW_ACTOR)
 
+static void
+meta_window_actor_x11_frame_complete (MetaWindowActor  *actor,
+                                      ClutterFrameInfo *frame_info,
+                                      gint64            presentation_time)
+{
+}
+
+static void
+meta_window_actor_x11_pre_paint (MetaWindowActor *actor)
+{
+}
+
+static void
+meta_window_actor_x11_post_paint (MetaWindowActor *actor)
+{
+}
+
 static void
 meta_window_actor_x11_class_init (MetaWindowActorX11Class *klass)
 {
+  MetaWindowActorClass *window_actor_class = META_WINDOW_ACTOR_CLASS (klass);
+
+  window_actor_class->frame_complete = meta_window_actor_x11_frame_complete;
+  window_actor_class->pre_paint = meta_window_actor_x11_pre_paint;
+  window_actor_class->post_paint = meta_window_actor_x11_post_paint;
 }
 
 static void
diff --git a/src/compositor/meta-window-actor.c b/src/compositor/meta-window-actor.c
index 88f8eb729..b0c01dfc9 100644
--- a/src/compositor/meta-window-actor.c
+++ b/src/compositor/meta-window-actor.c
@@ -2050,6 +2050,8 @@ meta_window_actor_pre_paint (MetaWindowActor *self)
 
   meta_window_actor_handle_updates (self);
 
+  META_WINDOW_ACTOR_GET_CLASS (self)->pre_paint (self);
+
   assign_frame_counter_to_frames (self);
 }
 
@@ -2090,6 +2092,8 @@ meta_window_actor_post_paint (MetaWindowActor *self)
 
   priv->repaint_scheduled = FALSE;
 
+  META_WINDOW_ACTOR_GET_CLASS (self)->post_paint (self);
+
   if (meta_window_actor_is_destroyed (self))
     return;
 
@@ -2192,6 +2196,10 @@ meta_window_actor_frame_complete (MetaWindowActor  *self,
   if (meta_window_actor_is_destroyed (self))
     return;
 
+  META_WINDOW_ACTOR_GET_CLASS (self)->frame_complete (self,
+                                                      frame_info,
+                                                      presentation_time);
+
   for (l = priv->frames; l;)
     {
       GList *l_next = l->next;