wlr_damage_ring_set_bounds: Ignore duplicate size requests

types/scene/wlr_scene.c

@@ -1218,6 +1218,7 @@ static void scene_output_update_geometry(struct wlr_scene_output *scene_output)
 	int width, height;
 	wlr_output_transformed_resolution(scene_output->output, &width, &height);
 	wlr_damage_ring_set_bounds(&scene_output->damage_ring, width, height);
+	wlr_damage_ring_add_whole(&scene_output->damage_ring);
 	wlr_output_schedule_frame(scene_output->output);
 
 	scene_node_output_update(&scene_output->scene->tree.node,

types/wlr_damage_ring.c

@@ -29,12 +29,16 @@ void wlr_damage_ring_finish(struct wlr_damage_ring *ring) {
 void wlr_damage_ring_set_bounds(struct wlr_damage_ring *ring,
 		int32_t width, int32_t height) {
 	if (width == 0 || height == 0) {
-		ring->width = INT_MAX;
+		width = INT_MAX;
-		ring->height = INT_MAX;
+		height = INT_MAX;
-	} else {
+	}
-		ring->width = width;
+
-		ring->height = height;
+	if (ring->width == width && ring->height == height) {
+		return;
 	}
+
+	ring->width = width;
+	ring->height = height;
 	wlr_damage_ring_add_whole(ring);
 }