completed prototype of background service that traverse the graph

app/node/processor/renderer/rendererprobe.h

@@ -1,17 +1,39 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
 #ifndef RENDERERPROBE_H
 #define RENDERERPROBE_H
 
 #include "node/node.h"
+#include "renderpath.h"
 
 class RendererProbe
 {
 public:
   RendererProbe();
 
-  static void ProbeNode(Node* node, int thread_count, const rational &time);
+  static RenderPath ProbeNode(Node* node, int thread_count, const rational &time);
 
 private:
-  static void TraverseNode(Node* node, int thread, const rational& time);
+  static void TraverseNode(RenderPath& path, Node* node, const rational& time, int thread, int index);
+
 };
 
 #endif // RENDERERPROBE_H