Implement default programs and implement defaults and parents for imports.
diff --git a/rsProgramFragment.cpp b/rsProgramFragment.cpp
index 316e791..8777335 100644
--- a/rsProgramFragment.cpp
+++ b/rsProgramFragment.cpp
@@ -148,6 +148,11 @@
 
 }
 
+void ProgramFragmentState::init(Context *rsc, int32_t w, int32_t h)
+{
+    ProgramFragment *pf = new ProgramFragment(NULL, NULL);
+    mDefault.set(pf);
+}
 
 
 namespace android {