libweston: Decouple weston_debug_compositor from weston_compositor

This patch allows initialization of weston-debug/log framework much earlier
than weston_compositor, which in turn will provide the option start
logging before weston_compositor has been created.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>

compositor/main.c

@@ -2918,6 +2918,7 @@ int main(int argc, char *argv[])
 	struct wl_listener primary_client_destroyed;
 	struct weston_seat *seat;
 	struct wet_compositor wet = { 0 };
+	struct weston_debug_compositor *wdc = NULL;
 	int require_input;
 	sigset_t mask;
 
@@ -2961,6 +2962,12 @@ int main(int argc, char *argv[])
 		return EXIT_SUCCESS;
 	}
 
+	wdc = weston_debug_compositor_create();
+	if (!wdc) {
+		fprintf(stderr, "Failed to initialize weston debug framework.\n");
+		return EXIT_FAILURE;
+	}
+
 	weston_log_set_handler(vlog, vlog_continue);
 	weston_log_file_open(log);
 
@@ -3025,7 +3032,7 @@ int main(int argc, char *argv[])
 			backend = weston_choose_default_backend();
 	}
 
-	wet.compositor = weston_compositor_create(display, &wet);
+	wet.compositor = weston_compositor_create(display, wdc, &wet);
 	if (wet.compositor == NULL) {
 		weston_log("fatal: failed to create compositor\n");
 		goto out;