read magnetic field from local GRP

[u/mrichter/AliRoot.git] / HLT / TRD / AliHLTTRDClusterizer.h

#ifndef ALIHLTTRDCLUSTERIZER_H
#define ALIHLTTRDCLUSTERIZER_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  HLT TRD cluster finder                                                //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include "AliTRDclusterizer.h"
#include "AliTRDReconstructor.h"
#include "AliHLTTRDCluster.h"
#include "AliHLTDataTypes.h"
#include "AliHLTTRDTrackletWordArray.h"

class AliHLTTRDTrackletWord;

class AliHLTTRDClusterizer : public AliTRDclusterizer
{
 public:
  AliHLTTRDClusterizer(const AliTRDReconstructor *const rec = 0x0);
  AliHLTTRDClusterizer(const Text_t *const name, const Text_t *const title, const AliTRDReconstructor *const rec = 0x0);
  AliHLTTRDClusterizer(const AliHLTTRDClusterizer& c);
  AliHLTTRDClusterizer& operator=(const AliHLTTRDClusterizer& c);

  void            Copy(TObject& c) const;
  void            SetMemBlock(AliHLTUInt8_t* ptr){
    if(fReconstructor->IsProcessingTracklets()){
      fTrMemBlock=ptr; fTrMemCurrPtr=ptr;
      fClMemBlock=ptr+GetTrMemBlockSize(); fNoOfClusters=0;  //if IsProcessingTracklets() is enabled we always reserve a data block of size GetTrMemBlockSize() for the tracklets
    }else{
      fClMemBlock=ptr; fNoOfClusters=0;
    }
  }
  AliHLTUInt8_t*  GetClMemBlock(){return fClMemBlock;}
  AliHLTUInt8_t*  GetTrMemBlock(){return fTrMemBlock;}
  UInt_t          GetAddedClSize(){return fNoOfClusters*sizeof(AliHLTTRDCluster);}
  UInt_t          GetAddedTrSize(){return (AliHLTUInt8_t*)fTrMemCurrPtr-(AliHLTUInt8_t*)fTrMemBlock;}
  UInt_t          GetTrMemBlockSize(){return 30*(sizeof(AliHLTTRDTrackletWordArray)+512*sizeof(UInt_t));}

 protected:
  void            AddClusterToArray(AliTRDcluster *cluster);
  void            AddTrackletsToArray();

  TClonesArray*   RecPoints(){return 0x0;}       //these are functions in the parents class and must not be used in hlt!
  TClonesArray*   TrackletsArray(){return 0x0;}  //if used accidentally it may give a compilation error because they are protected,
  void  SetClustersOwner(Bool_t /*own*/){}       //but it could be that the error appears only in  run time
  
  AliHLTUInt8_t*  fClMemBlock;
  AliHLTUInt8_t*  fTrMemBlock;
  AliHLTUInt8_t*  fTrMemCurrPtr;

  ClassDef(AliHLTTRDClusterizer, 1)
};

#endif