window: allow setting a buffer scale on a window
diff --git a/clients/window.h b/clients/window.h
index c0a7cb6..fec601f 100644
--- a/clients/window.h
+++ b/clients/window.h
@@ -253,6 +253,13 @@
 window_set_buffer_transform(struct window *window,
 			    enum wl_output_transform transform);
 
+uint32_t
+window_get_buffer_scale(struct window *window);
+
+void
+window_set_buffer_scale(struct window *window,
+                        uint32_t scale);
+
 void
 window_destroy(struct window *window);