HMPID/AliHMPIDRawStream.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 /// This is a class for reading the HMPID raw data
  19 /// The format of the raw data corresponds to the one
  20 /// which was documented by Paolo Martinengo.
  21 ///
  22 ///////////////////////////////////////////////////////////////////////////////
  23
  24 #include "AliHMPIDRawStream.h"
  25 #include "AliRawReader.h"
  26 #include "AliLog.h"
  27
  28 static Bool_t stDeb = kFALSE;
  29 //static Bool_t stDeb = kTRUE;
  30
  31 ClassImp(AliHMPIDRawStream)
  32
  33 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  34 AliHMPIDRawStream::AliHMPIDRawStream(AliRawReader* rawReader) :
  35   fNPads(0),
  36   fCharge(0x0),
  37   fPad(0x0),
  38   fDDLNumber(-1),
  39   fnDDLInStream(0x0),
  40   fnDDLOutStream(0x0),
  41   fLDCNumber( 0),
  42   fTimeStamp( 0),
  43   fRawReader(rawReader),
  44   fData(0x0),
  45   fNumOfErr(0x0),
  46   fPosition(-1),
  47   fWord(0),
  48   fZeroSup(kTRUE),
  49   fPos(0x0),
  50   fiPos(0)
  51 {
  52   //
  53   // Constructor
  54   //
  55   fNumOfErr = new Int_t*[kNDDL];                                 // Store the numner of errors for a given error type and a given DD
  56   for(Int_t i=0;i<kNDDL;i++) {
  57     fNumOfErr[i] = new Int_t [kSumErr];
  58   }
  59
  60   fnDDLInStream=new Int_t[kNDDL];
  61   fnDDLOutStream=new Int_t[kNDDL];
  62   for(Int_t iddl=0;iddl<kNDDL;iddl++) { fnDDLInStream[iddl]=-1;fnDDLOutStream[iddl]=-1;}
  63
  64   for(Int_t iddl=0;iddl<kNDDL;iddl++)
  65     for(Int_t ierr=0; ierr < kSumErr; ierr++) fNumOfErr[iddl][ierr]=0;               //reset errors
  66   fRawReader->Reset();
  67   fRawReader->Select("HMPID");
  68
  69
  70
  71 }
  72 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  73 AliHMPIDRawStream::AliHMPIDRawStream() :
  74   fNPads(0),
  75   fCharge(0x0),
  76   fPad(0x0),
  77   fDDLNumber(-1),
  78   fnDDLInStream(0x0),
  79   fnDDLOutStream(0x0),
  80   fLDCNumber( 0),
  81   fTimeStamp( 0),
  82   fRawReader(0x0),
  83   fData(0x0),
  84   fNumOfErr(0x0),
  85   fPosition(-1),
  86   fWord(0),
  87   fZeroSup(kTRUE),
  88   fPos(0x0),
  89   fiPos(0)
  90 {
  91   //
  92   // Constructor
  93   //
  94   fNumOfErr = new Int_t*[kNDDL];                                 // Store the numner of errors for a given error type and a given DD
  95   for(Int_t i=0;i<kNDDL;i++) {
  96     fNumOfErr[i] = new Int_t [kSumErr];
  97   }
  98   fnDDLInStream=new Int_t[kNDDL];
  99   fnDDLOutStream=new Int_t[kNDDL];
 100   for(Int_t iddl=0;iddl<kNDDL;iddl++) { fnDDLInStream[iddl]=-1;fnDDLOutStream[iddl]=-1;}
 101
 102
 103   for(Int_t iddl=0;iddl<kNDDL;iddl++)
 104     for(Int_t ierr=0; ierr < kSumErr; ierr++) fNumOfErr[iddl][ierr]=0;               //reset errors
 105
 106 }
 107 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 108 AliHMPIDRawStream::~AliHMPIDRawStream()
 109 {
 110   //
 111   // destructor
 112   //
 113   DelVars();
 114
 115
 116   fDDLNumber=0;
 117   fLDCNumber=0;
 118   fTimeStamp=0;
 119   fPosition=0;
 120   fWord=0;
 121   fZeroSup=0;
 122
 123   for(Int_t i=0;i<kSumErr;i++) delete [] fNumOfErr[i];
 124   delete [] fNumOfErr;
 125
 126   if(fnDDLInStream) { delete [] fnDDLInStream; fnDDLInStream = 0x0; }
 127 }
 128 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 129 void AliHMPIDRawStream::Reset()
 130 {
 131   // reset raw stream params
 132   // Reinitalize the containers
 133   fDDLNumber = -1;
 134   fLDCNumber =  0;
 135   fTimeStamp =  0;
 136   fPosition = -1;
 137   fData = NULL;
 138   if (fRawReader) fRawReader->Reset();
 139 }
 140 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 141 Bool_t AliHMPIDRawStream::Next()
 142 {
 143   // read next DDL raw data from the HMPID raw data stream
 144   // return kFALSE in case of error or no data left
 145   AliDebug(1,"Start.");
 146   do {
 147     if (!fRawReader->ReadNextData(fData)) return kFALSE;
 148   } while (fRawReader->GetDataSize() == 0);
 149
 150
 151   /*
 152   Event type is selected as in $ALICE_ROOT/RAW/event.h
 153   #define START_OF_RUN                    ((eventTypeType) 1)
 154   #define END_OF_RUN                      ((eventTypeType) 2)
 155   #define START_OF_RUN_FILES              ((eventTypeType) 3)
 156   #define END_OF_RUN_FILES                ((eventTypeType) 4)
 157   #define START_OF_BURST                  ((eventTypeType) 5)
 158   #define END_OF_BURST                    ((eventTypeType) 6)
 159   #define PHYSICS_EVENT                   ((eventTypeType) 7) <<---------------
 160   #define CALIBRATION_EVENT               ((eventTypeType) 8)
 161   #define EVENT_FORMAT_ERROR              ((eventTypeType) 9)
 162   #define START_OF_DATA                   ((eventTypeType)10)
 163   #define END_OF_DATA                     ((eventTypeType)11)
 164   #define SYSTEM_SOFTWARE_TRIGGER_EVENT   ((eventTypeType)12)
 165   #define DETECTOR_SOFTWARE_TRIGGER_EVENT ((eventTypeType)13)
 166   #define EVENT_TYPE_MIN                  1
 167   #define EVENT_TYPE_MAX                  13
 168   */
 169
 170   fPosition = 0;
 171   Bool_t status;
 172   Int_t  rawDataSize=0;
 173   if(fRawReader->GetType() == 7 || fRawReader->GetType() == 8 )  {           //New: Select Physics events, Old: Raw data size is not 0 and not 47148 (pedestal)
 174     fDDLNumber = fRawReader->GetDDLID();
 175     fnDDLInStream[fDDLNumber]=1; fnDDLOutStream[fDDLNumber]=0;
 176
 177     fLDCNumber = fRawReader->GetLDCId();
 178     fTimeStamp = fRawReader->GetTimestamp();
 179
 180     if(stDeb) Printf("DDL %i started to be decoded!",fDDLNumber);
 181     rawDataSize=fRawReader->GetDataSize()/4;
 182     DelVars();                                        //We have to delete the variables initialized in the InitVars before recall IntiVars!!!
 183     InitVars(rawDataSize);                            //To read the charge and pads we cannot delete before the status return
 184
 185     status = ReadHMPIDRawData();
 186
 187     if(stDeb) {
 188       if(status) Printf("Event DDL %i successfully decoded!.",fDDLNumber);
 189       else Printf("Event DDL %i ERROR in decoding!.",fDDLNumber);
 190 //      DumpData(fRawReader->GetDataSize());
 191     }
 192 //    stDeb=kFALSE;
 193
 194
 195     }
 196     if(status==kTRUE) {fnDDLOutStream[fDDLNumber]++; }//Printf("fnDDLOutStream[%d]=%d",fDDLNumber,fnDDLOutStream[fDDLNumber]); } //Count the number of events when the DDL was succesfully decoded
 197
 198     return status;
 199  //   return kTRUE;
 200 }
 201 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 202 void AliHMPIDRawStream::InitVars(Int_t n)
 203 {
 204   //
 205   //
 206   //
 207   fNPads = 0;
 208   fCharge = new Int_t[n];
 209   fPad = new Int_t[n];
 210   //for debug purpose
 211   fPos = new Int_t[4*n+4];                     //reset debug
 212   fiPos = 0;
 213 }
 214 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 215 void AliHMPIDRawStream::DelVars()
 216 {
 217   //
 218   //
 219   //
 220   //Clean the initvars!!!!!!!!
 221   fNPads = 0;
 222   if (fCharge)     { delete [] fCharge;    fCharge = 0x0; }
 223   if (fPad)        { delete [] fPad;       fPad = 0x0;       }
 224   if (fPos)        { delete [] fPos;       fPos = 0x0;       }
 225
 226   fiPos=0;
 227
 228
 229 }
 230 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 231 Bool_t AliHMPIDRawStream::ReadHMPIDRawData()
 232 {
 233   Int_t cntGlob = fRawReader->GetDataSize()/4;
 234   if(cntGlob==0) {fNumOfErr[fDDLNumber][kRawDataSizeErr]++; return kFALSE; }
 235
 236   Int_t cnt = cntGlob;
 237   Int_t nwSeg;
 238   Int_t cntSegment;
 239
 240   if(!GetWord(cnt)) return kFALSE;
 241   cnt--;
 242
 243
 244   while (cnt>0) {
 245
 246     nwSeg = (fWord >> kbit8) & 0xfff;
 247     if(!CheckSegment()) return kFALSE;
 248     if(!ReadSegment(cntSegment)) return kFALSE;
 249
 250     if(nwSeg != cntSegment) {if(stDeb){Printf("Error in Segment counters: %i different wrt %i",nwSeg,cntSegment);} return kFALSE;}
 251     if(!GetWord(cntSegment+1,kBwd)) return kFALSE;
 252     cnt-=cntSegment+1;
 253   }
 254
 255   return kTRUE;
 256
 257 }
 258 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 259 Bool_t AliHMPIDRawStream::ReadSegment(Int_t &cntSegment)
 260 {
 261   cntSegment = (fWord >> kbit8) & 0xfff;
 262   Int_t cnt = cntSegment;
 263   Int_t cntRow;
 264   Int_t nwRow;
 265
 266   if(!GetWord(cnt,kBwd)) return kFALSE;
 267
 268   while (cnt>0) {
 269
 270     cntRow  = (fWord >> kbit16) & 0xfff;
 271     if(!CheckRowMarker()) return kFALSE;
 272     if(!ReadRow(nwRow)) return kFALSE;
 273
 274     if(nwRow != cntRow) {if(stDeb){Printf("Error in Row counters: %i different wrt %i",nwRow,cntRow);} return kFALSE;}
 275     if(!GetWord(cntRow+1)) return kFALSE;
 276     cnt -= cntRow+1;
 277
 278   }
 279
 280   cntSegment -= cnt;
 281
 282   return kTRUE;
 283
 284 }
 285 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 286 Bool_t AliHMPIDRawStream::ReadRow(Int_t &cntRow)
 287 {
 288   Int_t cnt;
 289   Int_t cntDilogic;
 290   Int_t nwDil;
 291
 292   cntRow  = (fWord >> kbit16) & 0xfff;
 293   cnt = cntRow;
 294
 295   if(!GetWord(cntRow)) return kFALSE;
 296
 297   while (cnt>0) {
 298
 299     if(!CheckEoE(nwDil)) return kFALSE;
 300     if(!ReadDilogic(cntDilogic)) return kFALSE;
 301
 302     if(nwDil != cntDilogic) {if(stDeb){Printf("Error in Dilogic counters: %i different wrt %i",nwDil,cntDilogic);}return kFALSE;}
 303     cnt -= cntDilogic;
 304     if(!GetWord(1,kBwd)) return kFALSE; // go to next Dilogic bank...
 305     cnt--;
 306 //    Printf(" cnt %i cntDilogic %i ",cnt,cntDilogic);
 307   }
 308
 309   cntRow -= cnt;
 310
 311   return kTRUE;
 312
 313 }
 314 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 315 Bool_t AliHMPIDRawStream::ReadDilogic(Int_t &cntDilogic)
 316 {
 317   cntDilogic = fWord & 0x7f;
 318
 319   Int_t cnt = cntDilogic;
 320
 321 //  Printf(" cnt DILOGIC %i at %i word %08X",cnt,fPosition,fWord);
 322
 323   for(Int_t iDil=0;iDil<cntDilogic;iDil++) {
 324     UInt_t dilogic = 0, row = 0;
 325     if(!GetWord(1,kBwd)) return kFALSE;
 326 //check on row number
 327     cnt--;
 328     row = (fWord >> kbit22) & 0x1f;
 329     if(!CheckRow(row)) continue;
 330 //check dilogic number
 331     dilogic = (fWord >> kbit18) & 0xf;                                              //dilogic info in raw word is between bits: 18...21
 332     if(!CheckDilogic(dilogic)) continue;
 333 //check pad number
 334     UInt_t pad = (fWord >> kbit12) & 0x3f;                                          //pad info in raw word is between bits: 12...17
 335     if(!CheckPad(pad)) continue;
 336     Int_t charge = fWord & 0xfff;
 337     fPad[fNPads] = GetPad(fDDLNumber,row,dilogic,pad);
 338     fCharge[fNPads] = charge;
 339     fNPads++;
 340
 341     if(charge==0)
 342     {
 343       if(stDeb){AliWarning(Form("If PEDESTAL run -> WARNING: ZERO charge is read from DDL: %d row: %d dil: %d pad: %d",fDDLNumber,row,dilogic,pad));}
 344       fNumOfErr[fDDLNumber][kPedQZero]++;
 345     }
 346
 347   }//iDil
 348
 349   cntDilogic -= cnt;
 350   return kTRUE;
 351 }
 352 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 353 Bool_t AliHMPIDRawStream::CheckSegment()
 354 {
 355   UInt_t markSegment = 0xAB0;
 356   /*
 357   if (iRow%8 == 0) {
 358     UInt_t segWord = GetWord();
 359     if ((segWord >> 20) != statusSegWord) {
 360       fRawReader->AddMajorErrorLog(kBadSegWordErr);
 361       AliWarning(Form("Wrong segment word signature: %x, expected 0xab0!",(segWord >> 20)));
 362       fNumOfErr[kBadSegWordErr]++;
 363       return kTRUE;
 364     }
 365 */
 366   UInt_t segMarker = (fWord >> kbit20) & 0xfff;
 367   if (segMarker != markSegment ) {
 368     //fRawReader->AddMajorErrorLog(kWrongSegErr,Form("Segment marker %0X wrong (expected %0X) at %i in word %0X!",segMarker,markSegment,fPosition,fWord));
 369     if(stDeb){ AliWarning(Form("Segment marker %X wrong (expected %0X)! at %i in word %0X!",segMarker,markSegment,fPosition,fWord));}
 370     fNumOfErr[fDDLNumber][kWrongSegErr]++;
 371     return kFALSE;
 372   }
 373
 374   UInt_t segAddress = fWord & 0xff;
 375   if (segAddress<1 ||segAddress>3) {
 376     //fRawReader->AddMajorErrorLog(kWrongSegErr,Form("Segment address %d not in the valid range [1-3] at %i in word %0X",segAddress,fPosition,fWord));
 377     if(stDeb){AliWarning(Form("Segment address %d not in the valid range [1-3]",segAddress));}
 378     fNumOfErr[fDDLNumber][kWrongSegErr]++;
 379     return kFALSE;
 380   }
 381 //  Printf("Segment Marker found at %i! Number of segment is %i",fPosition,segAddress);
 382   return kTRUE;
 383 }
 384 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 385 Bool_t AliHMPIDRawStream::CheckRow(UInt_t row)
 386 {
 387 //check on row number
 388 //  Printf("ROW %i word %0X",row,fWord);
 389   if(row>=1 && row <=kNRows) return kTRUE;
 390
 391   //fRawReader->AddMajorErrorLog(kWrongRowErr,Form("row %d",row));
 392   if(stDeb){AliWarning(Form("Wrong row index: %d, expected (1 -> %d) word %0X at %i...",row,kNRows,fWord,fPosition));}
 393   fNumOfErr[fDDLNumber][kWrongRowErr]++;
 394   return kFALSE;
 395 }
 396 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 397 Bool_t AliHMPIDRawStream::CheckDilogic(UInt_t dilogic)
 398 {
 399 //check dilogic number
 400   if (dilogic>= 1 && dilogic <=kNDILOGICAdd) return kTRUE;
 401
 402   //fRawReader->AddMajorErrorLog(kWrongDilogicErr,Form("dil %d",dilogic));
 403   if(stDeb){AliWarning(Form("Wrong DILOGIC index: %d, expected (1 -> %d)!",dilogic,kNDILOGICAdd));}
 404   fNumOfErr[fDDLNumber][kWrongDilogicErr]++;
 405   //dilogic = iDILOGIC;
 406   return kFALSE;
 407 }
 408 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 409 Bool_t AliHMPIDRawStream::CheckPad(UInt_t pad)
 410 {
 411 //check pad number
 412   if (pad < kNPadAdd) return kTRUE;
 413
 414   //fRawReader->AddMajorErrorLog(kWrongPadErr,Form("pad %d",pad));
 415   if(stDeb){AliWarning(Form("Wrong pad index: %d, expected (0 -> %d)!",pad,kNPadAdd));}
 416   fNumOfErr[fDDLNumber][kWrongPadErr]++;
 417   return kFALSE;
 418 }
 419 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 420 Bool_t AliHMPIDRawStream::CheckEoE(Int_t &nDil)
 421 {
 422   if (!((fWord >> kbit27) & 0x1)) {                                                //check 27th bit in EoE. It must be 1!
 423     //fRawReader->AddMajorErrorLog(kEoEFlagErr);
 424     if(stDeb){AliWarning(Form("Missing end-of-event flag! (%08X) at %i",fWord,fPosition));}
 425     fNumOfErr[fDDLNumber][kEoEFlagErr]++;
 426     return kFALSE;
 427   }
 428   nDil = fWord & 0x7f;                                               //nDil=EoE word count
 429   if(nDil < 0 || nDil > 48 ) {
 430
 431     //fRawReader->AddMajorErrorLog(kEoESizeErr,Form("EoE size=%d",nDil));
 432     if(stDeb){AliWarning(Form("Wrong end-of-event word-count: %08X",fWord));}
 433     fNumOfErr[fDDLNumber][kEoESizeErr]++;
 434     return kFALSE;
 435   }
 436 //  UInt_t da = (eOfEvent >> 18) & 0xf;
 437 //  if (cntData!=0 && da != dilogic) {
 438 //    fRawReader->AddMajorErrorLog(kEoEDILOGICErr,Form("eoe dil %d != %d",da,dilogic));
 439 //    AliWarning(Form("Wrong DILOGIC address found in end-of-event: %d, expected %d!",da,dilogic));
 440 //    fNumOfErr[kEoEDILOGICErr]++;
 441 //    return kFALSE;  AliQAChecker::Instance()->Run(AliQA::kHMPID, task, obj) ;
 442
 443 //  }
 444 //  UInt_t ca = (eOfEvent >> 22) & 0x1f;
 445 //  if (cntData!=0 &&  ca != row) {
 446 //    fRawReader->AddMajorErrorLog(kEoERowErr,Form("eoe row %d != %d",ca,row));
 447 //    AliWarning(Form("Wrong row index found in end-of-event: %d, expected %d!",ca,row));
 448 //    fNumOfErr[kEoERowErr]++;
 449 //    return kFALSE;
 450 //  }
 451   return kTRUE;
 452 }
 453 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 454 Bool_t AliHMPIDRawStream::CheckRowMarker()
 455 {
 456   UInt_t nMAXwordsInRow = 0x1EA;
 457   UInt_t statusControlRow = 0x32a8; // 0x36a8 for zero suppression
 458 //First check on row marker
 459   UInt_t rowControlWord = fWord >> kbit0 & 0xfbff;
 460
 461   if(rowControlWord != statusControlRow) {
 462     //fRawReader->AddMajorErrorLog(kRowMarkerErr);
 463     if(stDeb){AliWarning(Form("Wrong row marker %x expected 0x32a8!",rowControlWord));
 464               fNumOfErr[fDDLNumber][kRowMarkerErr]++;
 465               return kFALSE; }
 466    }
 467 //Second check on row marker
 468    UInt_t wordsInRow = fWord >> kbit16 & 0x0fff;                // Number of words after the row marker, bit 10 is skipped in this check
 469
 470   if (wordsInRow > nMAXwordsInRow) {
 471     //fRawReader->AddMajorErrorLog(kRowMarkerSizeErr);
 472     if(stDeb){AliWarning(Form(" FATAL: Number of words %x in a row exceeds the expected value: 0x1EA !",wordsInRow));}
 473     fNumOfErr[fDDLNumber][kRowMarkerSizeErr]++;
 474     return kFALSE;
 475   }
 476
 477   return kTRUE;
 478 }
 479 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 480 Bool_t AliHMPIDRawStream::GetWord(Int_t n,EDirection dir)
 481 {
 482   // This method returns the n-th 32 bit word
 483   // inside the raw data payload.
 484   // The method is supposed to be endian (platform)
 485   // independent.
 486
 487   fWord = 0;
 488   if (!fData || fPosition < 0) AliFatal("Raw data payload buffer is not yet initialized !");
 489
 490   if(dir==kBwd) n = -n;
 491   fPosition+=4*n-4;
 492
 493   if(fPosition==-4) return kTRUE;
 494
 495   if(fPosition<0 || fPosition > fRawReader->GetDataSize()) {
 496     if(stDeb) Printf("fPosition out of boundaries %i",fPosition);
 497     return kFALSE;
 498   }
 499
 500   StorePosition();
 501
 502   fWord |= fData[fPosition++];
 503   fWord |= fData[fPosition++] << 8;
 504   fWord |= fData[fPosition++] << 16;
 505   fWord |= fData[fPosition++] << 24;
 506
 507   return kTRUE;
 508 }
 509 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 510 void AliHMPIDRawStream::DumpData(Int_t nw)
 511 {
 512    for(Int_t i=0;i<nw;i+=4) {
 513      if(!(i%16)) printf(" \n %8i) ",i);
 514      printf("%02X%02X%02X%02X [ %06i ] ",fData[i+3],fData[i+2],fData[i+1],fData[i+0],fPos[i]);
 515    }
 516    Printf(" \n -----end of dump ----------- ");
 517 }
 518 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 519 void AliHMPIDRawStream::StorePosition()
 520 {
 521 //  Printf("@@@@@@@@@ fPos: %x fPosition: %d",fPos,fPosition);
 522   if(fPos[fPosition]!=0) {
 523 //    Printf("Position already stored!!! Value %i at address %i",fPos[fPosition],fPosition);
 524     return;
 525   }
 526   fiPos++;
 527   fPos[fPosition] = fiPos;
 528 //  if(stDeb)Printf("%i - Actual position %i",iPos,fPosition);
 529 }
 530 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++