[clutter/clutter-1.16] Update ClutterWaylandSurface to use a resource instead of wl_buffer

[Emmanuele Bassi <ebassi src gnome org>]

commit 6c66148faf4b637c64d0e4fb1729422cf9808fa5
Author: Neil Roberts <neil linux intel com>
Date:   Thu Jul 4 13:28:45 2013 +0100

    Update ClutterWaylandSurface to use a resource instead of wl_buffer
    
    The Wayland server API has changed so that wl_shm_buffer is no longer
    a type of wl_buffer and wl_buffer will become an opaque type. This
    changes ClutterWaylandSurface to accept resources for a wl_buffer
    instead of directly taking the wl_buffer so that it can do different
    things depending on whether the resource points to an SHM buffer or a
    normal buffer. This matches similar changes to Cogl:
    
    https://git.gnome.org/browse/cogl/commit/?id=9b35e1651ad0e46ed48989
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703608

 clutter/wayland/clutter-wayland-surface.c |   25 +++++++++++++++----------
 clutter/wayland/clutter-wayland-surface.h |    4 ++--
 2 files changed, 17 insertions(+), 12 deletions(-)
---
diff --git a/clutter/wayland/clutter-wayland-surface.c b/clutter/wayland/clutter-wayland-surface.c
index e16c3ff..9ee4035 100644
--- a/clutter/wayland/clutter-wayland-surface.c
+++ b/clutter/wayland/clutter-wayland-surface.c
@@ -511,7 +511,7 @@ clutter_wayland_surface_new (struct wl_surface *surface)
 /**
  * clutter_wayland_surface_attach_buffer:
  * @self: A #ClutterWaylandSurface actor
- * @buffer: A compositor side struct wl_buffer pointer
+ * @buffer: A compositor side resource representing a wl_buffer
  * @error: A #GError
  *
  * This associates a client's buffer with the #ClutterWaylandSurface
@@ -523,7 +523,7 @@ clutter_wayland_surface_new (struct wl_surface *surface)
  */
 gboolean
 clutter_wayland_surface_attach_buffer (ClutterWaylandSurface *self,
-                                       struct wl_buffer *buffer,
+                                       struct wl_resource *buffer,
                                        GError **error)
 {
   ClutterWaylandSurfacePrivate *priv;
@@ -536,8 +536,6 @@ clutter_wayland_surface_attach_buffer (ClutterWaylandSurface *self,
 
   free_surface_buffers (self);
 
-  set_size (self, buffer->width, buffer->height);
-
   priv->buffer =
     cogl_wayland_texture_2d_new_from_buffer (context, buffer, error);
 
@@ -551,13 +549,17 @@ clutter_wayland_surface_attach_buffer (ClutterWaylandSurface *self,
   if (!priv->buffer)
     return FALSE;
 
+  set_size (self,
+            cogl_texture_get_width (COGL_TEXTURE (priv->buffer)),
+            cogl_texture_get_height (COGL_TEXTURE (priv->buffer)));
+
   return TRUE;
 }
 
 /**
  * clutter_wayland_surface_damage_buffer:
  * @self: A #ClutterWaylandSurface actor
- * @buffer: A compositor side struct wl_buffer pointer
+ * @buffer: A wayland resource for a buffer
  * @x: The x coordinate of the damaged rectangle
  * @y: The y coordinate of the damaged rectangle
  * @width: The width of the damaged rectangle
@@ -575,23 +577,26 @@ clutter_wayland_surface_attach_buffer (ClutterWaylandSurface *self,
  */
 void
 clutter_wayland_surface_damage_buffer (ClutterWaylandSurface *self,
-                                       struct wl_buffer *buffer,
+                                       struct wl_resource *buffer,
                                        gint32 x,
                                        gint32 y,
                                        gint32 width,
                                        gint32 height)
 {
   ClutterWaylandSurfacePrivate *priv;
+  struct wl_shm_buffer *shm_buffer;
 
   g_return_if_fail (CLUTTER_WAYLAND_IS_SURFACE (self));
 
   priv = self->priv;
 
-  if (priv->buffer && wl_buffer_is_shm (buffer))
+  shm_buffer = wl_shm_buffer_get (buffer);
+
+  if (priv->buffer && shm_buffer)
     {
       CoglPixelFormat format;
 
-      switch (wl_shm_buffer_get_format (buffer))
+      switch (wl_shm_buffer_get_format (shm_buffer))
         {
 #if G_BYTE_ORDER == G_BIG_ENDIAN
           case WL_SHM_FORMAT_ARGB8888:
@@ -619,8 +624,8 @@ clutter_wayland_surface_damage_buffer (ClutterWaylandSurface *self,
                                width, height,
                                width, height,
                                format,
-                               wl_shm_buffer_get_stride (buffer),
-                               wl_shm_buffer_get_data (buffer));
+                               wl_shm_buffer_get_stride (shm_buffer),
+                               wl_shm_buffer_get_data (shm_buffer));
     }
 
   g_signal_emit (self, signals[QUEUE_DAMAGE_REDRAW],
diff --git a/clutter/wayland/clutter-wayland-surface.h b/clutter/wayland/clutter-wayland-surface.h
index b68483e..da051e4 100644
--- a/clutter/wayland/clutter-wayland-surface.h
+++ b/clutter/wayland/clutter-wayland-surface.h
@@ -95,10 +95,10 @@ void          clutter_wayland_surface_set_surface       (ClutterWaylandSurface *
                                                          struct wl_surface *surface);
 struct wl_surface *clutter_wayland_surface_get_surface  (ClutterWaylandSurface *self);
 gboolean      clutter_wayland_surface_attach_buffer     (ClutterWaylandSurface *self,
-                                                         struct wl_buffer *buffer,
+                                                         struct wl_resource *buffer,
                                                          GError **error);
 void          clutter_wayland_surface_damage_buffer     (ClutterWaylandSurface *self,
-                                                         struct wl_buffer *buffer,
+                                                         struct wl_resource *buffer,
                                                          gint32 x,
                                                          gint32 y,
                                                          gint32 width,