HLT/TRD/AliHLTTRDClusterizer.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 ///////////////////////////////////////////////////////////////////////////////
  17 //                                                                           //
  18 // HLT TRD cluster finder                                                    //
  19 //                                                                           //
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "AliHLTTRDClusterizer.h"
  23 #include "AliHLTTRDCluster.h"
  24 #include "AliTRDgeometry.h"
  25 #include "AliTRDcluster.h"
  26 #include "AliTRDReconstructor.h"
  27 #include <TClonesArray.h>
  28
  29 ClassImp(AliHLTTRDClusterizer)
  30
  31 //_____________________________________________________________________________
  32 AliHLTTRDClusterizer::AliHLTTRDClusterizer(const AliTRDReconstructor *const rec)
  33   :AliTRDclusterizer(rec)
  34   ,fClMemBlock(NULL)
  35   ,fTrMemBlock(NULL)
  36   ,fTrMemCurrPtr(NULL)
  37   ,fLastDet(-1)
  38   ,fClusters(NULL)
  39   ,fAddedSize(0)
  40 {
  41   //
  42   // AliHLTTRDClusterizer default constructor
  43   //
  44 }
  45
  46 //_____________________________________________________________________________
  47 AliHLTTRDClusterizer::AliHLTTRDClusterizer(const Text_t *const name, const Text_t *const title, const AliTRDReconstructor *const rec)
  48   : AliTRDclusterizer(name,title,rec)
  49   ,fClMemBlock(NULL)
  50   ,fTrMemBlock(NULL)
  51   ,fTrMemCurrPtr(NULL)
  52   ,fLastDet(-1)
  53   ,fClusters(NULL)
  54   ,fAddedSize(0)
  55 {
  56   //
  57   // AliHLTTRDClusterizer constructor
  58   //
  59 }
  60
  61 //_____________________________________________________________________________
  62 AliHLTTRDClusterizer::AliHLTTRDClusterizer(const AliHLTTRDClusterizer& c)
  63   : AliTRDclusterizer(c)
  64   ,fClMemBlock(NULL)
  65   ,fTrMemBlock(NULL)
  66   ,fTrMemCurrPtr(NULL)
  67   ,fLastDet(-1)
  68   ,fClusters(NULL)
  69   ,fAddedSize(0)
  70 {
  71   //
  72   // AliHLTTRDClusterizer copy constructor
  73   //
  74 }
  75
  76 //_____________________________________________________________________________
  77 AliHLTTRDClusterizer& AliHLTTRDClusterizer::operator=(const AliHLTTRDClusterizer& c)
  78 {
  79   //
  80   // Assignment operator
  81   //
  82
  83   if(this!=&c)
  84     c.Copy(*this);
  85   return *this;
  86 }
  87
  88 //_____________________________________________________________________________
  89 void AliHLTTRDClusterizer::Copy(TObject& c) const
  90 {
  91   //
  92   // Copy function
  93   //
  94
  95   ((AliHLTTRDClusterizer&)c).fClMemBlock = NULL;
  96   ((AliHLTTRDClusterizer&)c).fTrMemBlock = NULL;
  97   ((AliHLTTRDClusterizer&)c).fTrMemCurrPtr = NULL;
  98 }
  99
 100 //_____________________________________________________________________________
 101 void AliHLTTRDClusterizer::AddClusterToArray(AliTRDcluster* cluster)
 102 {
 103   //
 104   // Add a cluster to the array
 105   //
 106
 107   if(fLastDet!=cluster->GetDetector()){
 108     fLastDet = cluster->GetDetector();
 109     fClusters = new(GetClMemBlock()+fAddedSize) AliHLTTRDClustersArray(fLastDet);
 110     fAddedSize += sizeof(AliHLTTRDClustersArray);
 111   }
 112   new(&fClusters->fCluster[fClusters->fCount]) AliHLTTRDClustersArray::cluster_type(cluster);
 113   fClusters->fCount++;
 114   fAddedSize += sizeof(AliHLTTRDClustersArray::cluster_type);
 115 }
 116
 117 //_____________________________________________________________________________
 118 void AliHLTTRDClusterizer::AddTrackletsToArray()
 119 {
 120   //
 121   // Add the online tracklets of this chamber to the array
 122   //
 123
 124   // memcpy(&(((UInt_t*)GetTrMemBlock())[fNoOfTracklets]),fTrackletContainer[0],256*sizeof(UInt_t));
 125   // memcpy(&(((UInt_t*)GetTrMemBlock())[fNoOfTracklets+256]),fTrackletContainer[1],256*sizeof(UInt_t));
 126
 127   // fNoOfTracklets += 512;
 128
 129   UInt_t* trackletword;
 130   AliHLTTRDTrackletWordArray* trklArr = new(fTrMemCurrPtr) AliHLTTRDTrackletWordArray(fDet);
 131   fTrMemCurrPtr += sizeof(AliHLTTRDTrackletWordArray);
 132   for(Int_t side=0; side<2; side++)
 133     {
 134       Int_t trkl=0;
 135       trackletword=fTrackletContainer[side];
 136       while(trackletword[trkl]>0){
 137         trkl++;
 138       }
 139       memcpy(fTrMemCurrPtr,fTrackletContainer[side],trkl*sizeof(UInt_t));
 140       fTrMemCurrPtr += trkl*sizeof(UInt_t);
 141       trklArr->fCount += trkl;
 142     }
 143
 144   // fTrackletContainer[0]+=256;
 145   // fTrackletContainer[1]+=256;
 146   // fNoOfTracklets += 512;
 147
 148 }