[metacity] compositor: pass MetaSurface to window_opaque_region_changed

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 0af8472b863d622bbc99eea7dd73f4de74e816ca
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Oct 13 15:52:23 2019 +0300

    compositor: pass MetaSurface to window_opaque_region_changed

 src/compositor/meta-compositor-none.c    | 2 +-
 src/compositor/meta-compositor-private.h | 2 +-
 src/compositor/meta-compositor-vulkan.c  | 2 +-
 src/compositor/meta-compositor-xrender.c | 2 +-
 src/compositor/meta-compositor.c         | 9 ++++++++-
 5 files changed, 12 insertions(+), 5 deletions(-)
---
diff --git a/src/compositor/meta-compositor-none.c b/src/compositor/meta-compositor-none.c
index b564832f..b4f45074 100644
--- a/src/compositor/meta-compositor-none.c
+++ b/src/compositor/meta-compositor-none.c
@@ -68,7 +68,7 @@ meta_compositor_none_window_opacity_changed (MetaCompositor *compositor,
 
 static void
 meta_compositor_none_window_opaque_region_changed (MetaCompositor *compositor,
-                                                   MetaWindow     *window)
+                                                   MetaSurface    *surface)
 {
 }
 
diff --git a/src/compositor/meta-compositor-private.h b/src/compositor/meta-compositor-private.h
index c4f41d92..840a7639 100644
--- a/src/compositor/meta-compositor-private.h
+++ b/src/compositor/meta-compositor-private.h
@@ -50,7 +50,7 @@ struct _MetaCompositorClass
                                                       MetaSurface        *surface);
 
   void              (* window_opaque_region_changed) (MetaCompositor     *compositor,
-                                                      MetaWindow         *window);
+                                                      MetaSurface        *surface);
 
   void              (* window_shape_region_changed)  (MetaCompositor     *compositor,
                                                       MetaWindow         *window);
diff --git a/src/compositor/meta-compositor-vulkan.c b/src/compositor/meta-compositor-vulkan.c
index 0e551f75..cdbbd432 100644
--- a/src/compositor/meta-compositor-vulkan.c
+++ b/src/compositor/meta-compositor-vulkan.c
@@ -1303,7 +1303,7 @@ meta_compositor_vulkan_window_opacity_changed (MetaCompositor *compositor,
 
 static void
 meta_compositor_vulkan_window_opaque_region_changed (MetaCompositor *compositor,
-                                                     MetaWindow     *window)
+                                                     MetaSurface    *surface)
 {
 }
 
diff --git a/src/compositor/meta-compositor-xrender.c b/src/compositor/meta-compositor-xrender.c
index 43ad3c5e..9f8b40a9 100644
--- a/src/compositor/meta-compositor-xrender.c
+++ b/src/compositor/meta-compositor-xrender.c
@@ -2166,7 +2166,7 @@ meta_compositor_xrender_window_opacity_changed (MetaCompositor *compositor,
 
 static void
 meta_compositor_xrender_window_opaque_region_changed (MetaCompositor *compositor,
-                                                      MetaWindow     *window)
+                                                      MetaSurface    *surface)
 {
 }
 
diff --git a/src/compositor/meta-compositor.c b/src/compositor/meta-compositor.c
index 72bf364a..187e5936 100644
--- a/src/compositor/meta-compositor.c
+++ b/src/compositor/meta-compositor.c
@@ -492,11 +492,18 @@ void
 meta_compositor_window_opaque_region_changed (MetaCompositor *compositor,
                                               MetaWindow     *window)
 {
+  MetaCompositorPrivate *priv;
   MetaCompositorClass *compositor_class;
+  MetaSurface *surface;
 
+  priv = meta_compositor_get_instance_private (compositor);
   compositor_class = META_COMPOSITOR_GET_CLASS (compositor);
 
-  compositor_class->window_opaque_region_changed (compositor, window);
+  surface = g_hash_table_lookup (priv->surfaces, window);
+  if (surface == NULL)
+    return;
+
+  compositor_class->window_opaque_region_changed (compositor, surface);
 }
 
 void