include/opencascade/OpenGl_FrameStats.hxx

0001 // Copyright (c) 2017 OPEN CASCADE SAS
0002 //
0003 // This file is part of Open CASCADE Technology software library.
0004 //
0005 // This library is free software; you can redistribute it and/or modify it under
0006 // the terms of the GNU Lesser General Public License version 2.1 as published
0007 // by the Free Software Foundation, with special exception defined in the file
0008 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0009 // distribution for complete text of the license and disclaimer of any warranty.
0010 //
0011 // Alternatively, this file may be used under the terms of Open CASCADE
0012 // commercial license or contractual agreement.
0013
0014 #ifndef _OpenGl_FrameStats_HeaderFile
0015 #define _OpenGl_FrameStats_HeaderFile
0016
0017 #include <Graphic3d_FrameStats.hxx>
0018 #include <NCollection_IndexedMap.hxx>
0019
0020 class Graphic3d_CStructure;
0021
0022 //! Class storing the frame statistics.
0023 class OpenGl_FrameStats : public Graphic3d_FrameStats
0024 {
0025   DEFINE_STANDARD_RTTIEXT(OpenGl_FrameStats, Graphic3d_FrameStats)
0026 public:
0027
0028   //! Default constructor.
0029   Standard_EXPORT OpenGl_FrameStats();
0030
0031   //! Destructor.
0032   Standard_EXPORT virtual ~OpenGl_FrameStats();
0033
0034 public:
0035
0036   //! Copy stats values into another instance (create new instance, if not exists).
0037   //! The main use of this method is to track changes in statistics (e.g. in conjunction with IsEqual() method).
0038   //! @return TRUE if frame data has been changed so that the presentation should be updated
0039   Standard_EXPORT virtual bool IsFrameUpdated (Handle(OpenGl_FrameStats)& thePrev) const;
0040
0041 protected:
0042
0043   //! Method to collect statistics from the View; called by FrameEnd().
0044   Standard_EXPORT virtual void updateStatistics (const Handle(Graphic3d_CView)& theView,
0045                                                  bool theIsImmediateOnly) Standard_OVERRIDE;
0046
0047   //! Updates counters for structures.
0048   Standard_EXPORT virtual void updateStructures (Standard_Integer theViewId,
0049                                                  const NCollection_IndexedMap<const Graphic3d_CStructure*>& theStructures,
0050                                                  Standard_Boolean theToCountElems,
0051                                                  Standard_Boolean theToCountTris,
0052                                                  Standard_Boolean theToCountMem);
0053
0054 };
0055
0056 DEFINE_STANDARD_HANDLE(OpenGl_FrameStats, Graphic3d_FrameStats)
0057
0058 #endif // _OpenGl_FrameStats_HeaderFile