Use a mutex to prevent the two render threads (rendering the workarea and the navigat...

[synfig.git] / synfig-core / trunk / src / synfig / layer_duplicate.h

diff --git a/synfig-core/trunk/src/synfig/layer_duplicate.h b/synfig-core/trunk/src/synfig/layer_duplicate.h
index 6d74c18..3c29b23 100644 (file)
--- a/synfig-core/trunk/src/synfig/layer_duplicate.h
+++ b/synfig-core/trunk/src/synfig/layer_duplicate.h
@@ -42,6 +42,7 @@ class Layer_Duplicate : public synfig::Layer_Composite
 private:
        mutable Real index;
        mutable Time time_cur;
+       mutable synfig::Mutex mutex;
 
 public: