libweston: assert current_mode in weston_output_enable()
The functions called here, particularly
weston_output_transform_scale_init(), rely on current mode being set.
The current mode must also be found in the mode list, though we don't
explicitly check it here.
current_mode not being set is a programmer error. It could be a backend
bug, but it could also be a libweston user bug not calling a set size
function.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Ian Ray <ian.ray@ge.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Acked-by: Derek Foreman <derekf@osg.samsung.com>
diff --git a/libweston/compositor.c b/libweston/compositor.c
index 547e826..2ec7f8e 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -5539,6 +5539,12 @@
return -1;
}
+ if (wl_list_empty(&output->mode_list) || !output->current_mode) {
+ weston_log("Error: no video mode for output '%s'.\n",
+ output->name);
+ return -1;
+ }
+
wl_list_for_each(head, &output->head_list, output_link) {
assert(head->make);
assert(head->model);