1 files changed, 5 insertions, 0 deletions
diff --git a/src/common/backend.h b/src/common/backend.h
index e1d29c5..6014cda 100644
--- a/src/common/backend.h
+++ b/src/common/backend.h
@@ -4,6 +4,8 @@
 #include "yasl/yasl.h"
 #include "yasl/loop.h"
 #include "yasl/native.h"
+#include "common/input.h"
+#include "common/timing.h"
 
 struct yasl_backend_ops;
 
@@ -24,6 +26,9 @@ struct yasl_surface {
     struct yasl_surface_cbs callbacks;
     void *ud;
     uint64_t frame_generation;
+    struct input_queue input;
+    struct yasl_frame_clock clock;
+    uint64_t frames_skipped;
     yasl_timer_id *timers;
     int timer_count;
     int timer_capacity;