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libweston: introduce weston_output_from_resource()

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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>
This commit is contained in:
Pekka Paalanen
2017-03-27 15:14:32 +03:00
parent 0079a949e0
commit 9ffb25009c
11 changed files with 30 additions and 11 deletions
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fullscreen-shell/fullscreen-shell.c
+2 -2
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@@ -769,7 +769,7 @@ fullscreen_shell_present_surface(struct wl_client *client,
}
if (output_res) {
output = wl_resource_get_user_data(output_res);
output = weston_output_from_resource(output_res);
fsout = fs_output_for_output(output);
fs_output_set_surface(fsout, surface, method, 0, 0);
} else {
@@ -813,7 +813,7 @@ fullscreen_shell_present_surface_for_mode(struct wl_client *client,
struct weston_seat *seat;
struct fs_output *fsout;
output = wl_resource_get_user_data(output_res);
output = weston_output_from_resource(output_res);
fsout = fs_output_for_output(output);
if (surface_res == NULL) {