output: make rollback_render mandatory
If the output backend provides attach_render, assert it also provides a
way to revert it via rollback_render.
@@ -314,7 +314,7 @@ static void handle_display_destroy(struct wl_listener *listener, void *data) {
void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend,
const struct wlr_output_impl *impl, struct wl_display *display) {
- assert(impl->attach_render && impl->commit);
+ assert(impl->attach_render && impl->rollback_render && impl->commit);
if (impl->set_cursor || impl->move_cursor) {
assert(impl->set_cursor && impl->move_cursor);
}
