DtOsgPerformanceStats.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvUtil/DtProfileIterator.h>
#include <vrvUtil/signalslib.h>

#include <string>
#include <vector>
#include <map>

#define MAX_FRAMES 60

namespace makVrv
{
   class DtKeyEvent;
   class DT_DLL_VRVOSG DtOsgPerformanceStats
   {
   public:
      struct StatData
      {
         std::string name;
         std::vector<DtProfileNode*> nodes;
         double totals[MAX_FRAMES];
         double totals_child[MAX_FRAMES];
      };

      typedef std::vector<StatData*> StatList;
      typedef std::map<std::string, StatList*> GroupMap;

      DtOsgPerformanceStats(DtDe& de);

      virtual void reset();

      void addLabel(const std::string& group, const std::string& name);

      void removeLabel(const std::string& group, const std::string& name);

      virtual ~DtOsgPerformanceStats();

      virtual void updateCallback();

      virtual void handleKeyEvent(int key, int modifier);

      boost::signalslib::signal<void(const std::string&)> signal_statsChanged;

      // accessor used by Imgui profiler
      const GroupMap& groupData() { return myGroupData; }

   protected:
      void updateGroupNodeList();
      void updateFrameTimes();
      void appendToString(const std::string& str);
      bool findNodes(DtProfileNode* parent, const std::string& name, std::vector<DtProfileNode*>& found);

      DtDe& myDe;

     
      GroupMap myGroupData;

      int myCurrentFrameIndex;
      int myPrevousEvictionCount;
      int myPreviousEvictionMemory;

      std::string myStatsInString;
      int myFramesLowerThan30FPS;
      int myFramesLowerThan60FPS;
      int myFramesRendered;
   };
}