commit 9ffb25009cbf2996f53b4ceb39cb9a7af1508ebf
author Pekka Paalanen <pekka.paalanen@collabora.co.uk> Mon Mar 27 15:14:32 2017 +0300
committer Pekka Paalanen <pekka.paalanen@collabora.co.uk> Tue Jul 25 16:08:48 2017 +0300
tree ee1e06386af507ad0008ed91524639a0059e6da7
parent 0079a949e09816a7ae1ea0de69196c2a0e0875e7

libweston: introduce weston_output_from_resource()

This is a simple wrapper for casting the user data of a wl_resource into
a struct weston_output pointer. Using the wrapper clearly marks all the
places where a wl_output protocol object is used.

Replace ALL wl_output related calls to wl_resource_get_user_data() with
a call to weston_output_from_resource().

v2: add type assert in weston_output_from_resource().

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Armin Krezović <krezovic.armin@gmail.com>

libweston/compositor.h

diff --git a/libweston/compositor.h b/libweston/compositor.h
index 442d046..769203a 100644
--- a/libweston/compositor.h
+++ b/libweston/compositor.h
@@ -1941,6 +1941,9 @@
 void
 weston_pending_output_coldplug(struct weston_compositor *compositor);
 
+struct weston_output *
+weston_output_from_resource(struct wl_resource *resource);
+
 #ifdef  __cplusplus
 }
 #endif