diff --git a/CMCore b/CMCore
index d4459cf4..339ee9a5 160000
--- a/CMCore
+++ b/CMCore
@@ -1 +1 @@
-Subproject commit d4459cf4cd00f324f46fdb80522b8eb3c0beaea0
+Subproject commit 339ee9a5614211383999d725cd90e4278c9e1594
diff --git a/src/SceneGraph/TileData.cpp b/src/SceneGraph/TileData.cpp
index 976685e9..019446e7 100644
--- a/src/SceneGraph/TileData.cpp
+++ b/src/SceneGraph/TileData.cpp
@@ -147,6 +147,9 @@ namespace hgl
             return(obj);
         }
 
+        /**
+         * 获取一个TileObject
+         */
         TileObject *TileData::Acquire()
         {
             TileObject *obj;
diff --git a/src/SceneGraph/font/TileFont.cpp b/src/SceneGraph/font/TileFont.cpp
index 009f1b98..1b90790b 100644
--- a/src/SceneGraph/font/TileFont.cpp
+++ b/src/SceneGraph/font/TileFont.cpp
@@ -37,17 +37,27 @@ namespace hgl
 
             List<u32char> new_chars;
 
-            for(uint i=0;i<ch_list.GetCount();i++)
+            int in_active_count;
+            int in_idle_count;
+            int out_count;
+            int idle_left_count;
+
+            int exist_count;
+
+            to_res.Stats(ch_list.GetData(),ch_list.GetCount(),&in_active_count,&in_idle_count,&out_count,&idle_left_count);
+
+            exist_count=in_active_count+in_idle_count;
+
+            if(exist_count>tile_data->GetFreeCount())                       //剩余空间不够了
             {
-                if(!to_res.KeyExist(*cp))
-                    new_chars.Add(*cp);
+                int need=new_chars.GetCount()-tile_data->GetFreeCount();    //计算需要的tile数量差值
 
-                cp++;
+                to_res.Get
+
+                if(need>to_res.GetIdleCount())                              //闲置项都不够，那没戏了
+                    return(false);
             }
 
-            if(new_chars.GetCount()>tile_data->GetFreeCount())      //剩余空间不够了
-                return(false);
-
             rs.ClearData();
             rs.SetCount(ch_list.GetCount());