layers: Updated Object Tracker to support callbacks and extensions
diff --git a/include/xglLayer.h b/include/xglLayer.h
index 2cfdb16..e369fc2 100644
--- a/include/xglLayer.h
+++ b/include/xglLayer.h
@@ -269,5 +269,13 @@
WsiX11QueuePresentType WsiX11QueuePresent;
} XGL_LAYER_DISPATCH_TABLE;
+// LL node for tree of dbg callback functions
+typedef struct _XGL_LAYER_DBG_FUNCTION_NODE
+{
+ XGL_DBG_MSG_CALLBACK_FUNCTION pfnMsgCallback;
+ XGL_VOID *pUserData;
+ struct _XGL_LAYER_DBG_FUNCTION_NODE *pNext;
+} XGL_LAYER_DBG_FUNCTION_NODE;
+
// ------------------------------------------------------------------------------------------------
// API functions