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dataGraphTraverser.h
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64 lines (50 loc) · 1.58 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file dataGraphTraverser.h
* @author drose
* @date 2002-03-11
*/
#ifndef DATAGRAPHTRAVERSER_H
#define DATAGRAPHTRAVERSER_H
#include "pandabase.h"
#include "dataNodeTransmit.h"
#include "pvector.h"
#include "pmap.h"
class DataNode;
class PandaNode;
/**
* This object supervises the traversal of the data graph and the moving of
* data from one DataNode to its children. The data graph is used to manage
* data from input devices, etc. See the overview of the data graph in
* dataNode.h.
*/
class EXPCL_PANDA_DGRAPH DataGraphTraverser {
PUBLISHED:
explicit DataGraphTraverser(Thread *current_thread = Thread::get_current_thread());
~DataGraphTraverser();
INLINE Thread *get_current_thread() const;
void traverse(PandaNode *node);
void traverse_below(PandaNode *node, const DataNodeTransmit &output);
void collect_leftovers();
private:
void r_transmit(DataNode *data_node, const DataNodeTransmit inputs[]);
typedef pvector<DataNodeTransmit> DataVector;
Thread *_current_thread;
class CollectedData {
public:
INLINE CollectedData();
void set_data(int parent_index, const DataNodeTransmit &data);
int _num_parents;
DataVector _data;
};
typedef pmap<DataNode *, CollectedData> MultipassData;
MultipassData _multipass_data;
};
#include "dataGraphTraverser.I"
#endif