Try to render entire update in one go to avoid tearing.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3718 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/win/vncviewer/CConn.cxx b/win/vncviewer/CConn.cxx
index aa4ba75..d5eadc4 100644
--- a/win/vncviewer/CConn.cxx
+++ b/win/vncviewer/CConn.cxx
@@ -511,6 +511,7 @@
     }
     debugRects.clear();
   }
+  window->framebufferUpdateEnd();
 
   if (firstUpdate) {
     int width, height;