Bump wl_compositor to version 5 (#734)

Author: Sunderland93

meson.build

@@ -37,7 +37,7 @@ udev_req = '>= 228'
 gudev_req = '>= 232'
 
 # wayland version requirements
-wayland_server_req = '>= 1.13.0'
+wayland_server_req = '>= 1.20'
 wayland_protocols_req = '>= 1.19'
 
 # native backend version requirements

src/wayland/meta-wayland-surface.c

@@ -468,10 +468,11 @@ meta_wayland_surface_state_merge_into (MetaWaylandSurfaceState *from,
 
       to->newly_attached = TRUE;
       to->buffer = from->buffer;
-      to->dx = from->dx;
-      to->dy = from->dy;
     }
 
+  to->dx = from->dx;
+  to->dy = from->dy;
+
   wl_list_insert_list (&to->frame_callback_list, &from->frame_callback_list);
 
   cairo_region_union (to->surface_damage, from->surface_damage);
@@ -925,6 +926,16 @@ wl_surface_attach (struct wl_client *client,
                               pending->buffer);
     }
 
+  if (wl_resource_get_version (surface_resource) >=
+    WL_SURFACE_OFFSET_SINCE_VERSION &&
+    (dx != 0 || dy != 0))
+  {
+    wl_resource_post_error (surface_resource,
+                            WL_SURFACE_ERROR_INVALID_OFFSET,
+                            "Attaching with an offset is no longer allowed");
+    return;
+  }
+
   pending->newly_attached = TRUE;
   pending->buffer = buffer;
   pending->dx = dx;
@@ -1153,6 +1164,20 @@ wl_surface_damage_buffer (struct wl_client   *client,
   cairo_region_union_rectangle (pending->buffer_damage, &rectangle);
 }
 
+static void
+wl_surface_offset (struct wl_client   *client,
+                   struct wl_resource *surface_resource,
+                   int32_t             dx,
+                   int32_t             dy)
+{
+  MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
+  MetaWaylandSurfaceState *pending = surface->pending_state;
+
+  pending->dx = dx;
+  pending->dy = dy;
+}
+
+
 static const struct wl_surface_interface meta_wayland_wl_surface_interface = {
   wl_surface_destroy,
   wl_surface_attach,
@@ -1164,6 +1189,7 @@ static const struct wl_surface_interface meta_wayland_wl_surface_interface = {
   wl_surface_set_buffer_transform,
   wl_surface_set_buffer_scale,
   wl_surface_damage_buffer,
+  wl_surface_offset,
 };
 
 static void

src/wayland/meta-wayland-versions.h

@@ -35,7 +35,7 @@
 /* #define META_WL_BUFFER_VERSION     1 */
 
 /* Global/master objects (version exported by wl_registry and negotiated through bind) */
-#define META_WL_COMPOSITOR_VERSION          4
+#define META_WL_COMPOSITOR_VERSION          5
 #define META_WL_DATA_DEVICE_MANAGER_VERSION 3
 #define META_XDG_WM_BASE_VERSION            3
 #define META_WL_SEAT_VERSION                5