xwayland: WM debug prints

Add WM debug prints on map, decoration drawing and geometry setting.
These help see the sequence and timing of operations, when debugging
Xwayland window management glitches.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>

xwayland/window-manager.c

@@ -1050,6 +1050,8 @@ weston_wm_window_draw_decoration(void *data)
 	uint32_t flags = 0;
 	struct weston_view *view;
 
+	wm_log("XWM: start draw decoration, win %d\n", window->id);
+
 	weston_wm_window_read_properties(window);
 
 	window->repaint_source = NULL;
@@ -1108,6 +1110,9 @@ weston_wm_window_draw_decoration(void *data)
 		pixman_region32_init_rect(&window->surface->pending.input,
 					  input_x, input_y, input_w, input_h);
 
+		wm_log("XWM: draw decoration, win %d geometry: %d,%d %dx%d\n",
+		       window->id, input_x, input_y, input_w, input_h);
+
 		xwayland_interface->set_window_geometry(window->shsurf,
 							input_x, input_y, input_w, input_h);
 	}
@@ -1139,6 +1144,8 @@ weston_wm_window_schedule_repaint(struct weston_wm_window *window)
 	if (window->repaint_source)
 		return;
 
+	wm_log("XWM: schedule repaint, win %d\n", window->id);
+
 	window->repaint_source =
 		wl_event_loop_add_idle(wm->server->loop,
 				       weston_wm_window_draw_decoration,
@@ -2547,6 +2554,9 @@ xserver_map_shell_surface(struct weston_wm_window *window,
 						   window->surface,
 						   &shell_client);
 
+	wm_log("XWM: map shell surface, win %d, xwayland surface %p\n",
+	       window->id, window->shsurf);
+
 	if (window->name)
 		xwayland_interface->set_title(window->shsurf, window->name);
 	if (window->pid > 0)