1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // TRD raw data conversion class //
22 ///////////////////////////////////////////////////////////////////////////////
29 #include "AliRawDataHeaderSim.h"
30 #include "AliRawReader.h"
32 #include "AliFstream.h"
33 #include "AliTreeLoader.h"
35 #include "AliTRDrawData.h"
36 #include "AliTRDdigitsManager.h"
37 #include "AliTRDgeometry.h"
38 #include "AliTRDarrayDictionary.h"
39 #include "AliTRDarrayADC.h"
40 #include "AliTRDrawStreamBase.h"
41 #include "AliTRDcalibDB.h"
42 #include "AliTRDSignalIndex.h"
43 #include "AliTRDfeeParam.h"
44 #include "AliTRDmcmSim.h"
45 #include "AliTRDtrackletWord.h"
46 #include "AliTRDdigitsParam.h"
48 ClassImp(AliTRDrawData)
50 Int_t AliTRDrawData::fgDataSuppressionLevel = 0;
52 //_____________________________________________________________________________
53 AliTRDrawData::AliTRDrawData()
60 ,fTrackletContainer(NULL)
64 ,fMcmSim(new AliTRDmcmSim)
68 // Default constructor
71 fFee = AliTRDfeeParam::Instance();
72 fNumberOfDDLs = AliDAQ::NumberOfDdls("TRD");
76 //_____________________________________________________________________________
77 AliTRDrawData::AliTRDrawData(const AliTRDrawData &r)
84 ,fTrackletContainer(NULL)
88 ,fMcmSim(new AliTRDmcmSim)
95 fFee = AliTRDfeeParam::Instance();
96 fNumberOfDDLs = AliDAQ::NumberOfDdls("TRD");
100 //_____________________________________________________________________________
101 AliTRDrawData::~AliTRDrawData()
107 if (fTrackletContainer){
108 delete fTrackletContainer;
109 fTrackletContainer = NULL;
116 //_____________________________________________________________________________
117 Bool_t AliTRDrawData::Digits2Raw(TTree *digitsTree, const TTree *tracks )
120 // Initialize necessary parameters and call one
121 // of the raw data simulator selected by SetRawVersion.
123 // Currently tracklet output is not spported yet and it
124 // will be supported in higher version simulator.
127 AliTRDdigitsManager* const digitsManager = new AliTRDdigitsManager();
129 if (!digitsManager->ReadDigits(digitsTree)) {
130 delete digitsManager;
134 if (tracks != NULL) {
135 delete digitsManager;
136 AliError("Tracklet input is not supported yet.");
140 fGeo = new AliTRDgeometry();
142 if (!AliTRDcalibDB::Instance()) {
143 AliError("Could not get calibration object");
145 delete digitsManager;
149 Int_t retval = kTRUE;
150 Int_t rv = fFee->GetRAWversion();
152 // Call appropriate Raw Simulator
153 if ( rv > 0 && rv <= 3 ) retval = Digits2Raw(digitsManager);
156 AliWarning(Form("Unsupported raw version (%d).", rv));
161 delete digitsManager;
167 //_____________________________________________________________________________
168 Bool_t AliTRDrawData::Digits2Raw(AliTRDdigitsManager *digitsManager)
171 // Raw data simulator for all versions > 0. This is prepared for real data.
172 // This version simulate only raw data with ADC data and not with tracklet.
175 const Int_t kMaxHcWords = (fGeo->TBmax()/3)
181 // Buffer to temporary store half chamber data
182 UInt_t *hcBuffer = new UInt_t[kMaxHcWords];
184 Bool_t newEvent = kFALSE; // only for correct readout tree
185 Bool_t newSM = kFALSE; // new SM flag, for writing SM index words
186 Bool_t newStack = kFALSE; // new stack flag, for writing stack index words
188 // Get digits parameter
189 fDigitsParam = digitsManager->GetDigitsParam();
191 // sect is same as iDDL, so I use only sect here.
192 for (Int_t sect = 0; sect < fGeo->Nsector(); sect++) {
195 snprintf(name,1024,"TRD_%d.ddl",sect + AliTRDrawStreamBase::kDDLOffset);
197 AliFstream* of = new AliFstream(name);
199 // Write a dummy data header
200 AliRawDataHeaderSim header; // the event header
201 UInt_t hpos = of->Tellp();
202 of->WriteBuffer((char *) (& header), sizeof(header));
204 // Reset payload byte size (payload does not include header).
205 Int_t npayloadbyte = 0;
207 // check the existance of the data
208 // SM index word and Stack index word
209 UInt_t *iwbuffer = new UInt_t[109]; // index word buffer; max 109 = 2 SM headers + 67 dummy headers + 5*8 stack headers
211 UInt_t bStackMask = 0x0;
212 Bool_t bStackHasData = kFALSE;
213 Bool_t bSMHasData = kFALSE;
215 //iwbuffer[nheader++] = 0x0001a020; // SM index words
216 iwbuffer[nheader++] = 0x0044a020; // SM index words | additional SM header:48 = 1 SM header + 47 dummy words(for future use)
217 iwbuffer[nheader++] = 0x10404071; // SM header
218 for ( Int_t i=0; i<66; i++ ) iwbuffer[nheader++] = 0x00000000; // dummy words
219 iwbuffer[nheader++] = 0x10000000; // end of dummy words
221 for ( Int_t stack= 0; stack < fGeo->Nstack(); stack++) {
222 UInt_t linkMask = 0x0;
223 for( Int_t layer = 0; layer < fGeo->Nlayer(); layer++) {
224 Int_t iDet = fGeo->GetDetector(layer,stack,sect);
225 AliTRDarrayADC *digits = (AliTRDarrayADC *) digitsManager->GetDigits(iDet);
226 if ( fgDataSuppressionLevel==0 || digits->HasData() ) {
227 bStackMask = bStackMask | ( 1 << stack ); // active stack mask for new stack
228 linkMask = linkMask | ( 3 << (2*layer) ); // 3 = 0011
229 bStackHasData = kTRUE;
234 if ( fgDataSuppressionLevel==0 || bStackHasData ){
235 iwbuffer[nheader++] = 0x0007a000 | linkMask; // stack index word + link masks
236 if (fgDataSuppressionLevel==0) iwbuffer[nheader-1] = 0x0007afff; // no suppression
237 iwbuffer[nheader++] = 0x04045b01; // stack header
238 for (Int_t i=0;i<6;i++) iwbuffer[nheader++] = 0x00000000; // 6 dummy words
239 bStackHasData = kFALSE;
243 if ( fgDataSuppressionLevel==0 || bSMHasData ){
244 iwbuffer[0] = iwbuffer[0] | bStackMask; // add stack masks to SM index word
245 if (fgDataSuppressionLevel==0) iwbuffer[0] = 0x0044a03f; // no suppression : all stacks are active
246 of->WriteBuffer((char *) iwbuffer, nheader*4);
247 AliDebug(11, Form("SM %d index word: %08x", sect, iwbuffer[0]));
248 AliDebug(11, Form("SM %d header: %08x", sect, iwbuffer[1]));
250 // end of SM & stack header ------------------------------------------------------------------------
251 // -------------------------------------------------------------------------------------------------
253 // Prepare chamber data
254 for( Int_t stack = 0; stack < fGeo->Nstack(); stack++) {
255 for( Int_t layer = 0; layer < fGeo->Nlayer(); layer++) {
257 Int_t iDet = fGeo->GetDetector(layer,stack,sect);
259 newEvent = kTRUE; // it is expected that each event has at least one tracklet;
260 // this is only needed for correct readout tree
262 AliDebug(11, Form("New event!! Event counter: %d",fEventCounter));
265 if ( stack==0 && layer==0 ) newSM = kTRUE; // new SM flag
266 if ( layer==0 ) newStack = kTRUE; // new stack flag
267 AliDebug(15, Form("stack : %d, layer : %d, iDec : %d\n",stack,layer,iDet));
268 // Get the digits array
269 AliTRDarrayADC *digits = (AliTRDarrayADC *) digitsManager->GetDigits(iDet);
270 if (fgDataSuppressionLevel==0 || digits->HasData() ) { // second part is new!! and is for indicating a new event
272 if (digits->HasData()) digits->Expand();
276 // Process A side of the chamber
277 hcwords = ProduceHcData(digits,0,iDet,hcBuffer,kMaxHcWords,newEvent,newSM);
278 if ( newEvent ) newEvent = kFALSE;
279 //AssignLinkMask(hcBuffer, layer); // active link mask for this layer(2*HC)
280 of->WriteBuffer((char *) hcBuffer, hcwords*4);
281 npayloadbyte += hcwords*4;
283 // Process B side of the chamber
284 hcwords = ProduceHcData(digits,1,iDet,hcBuffer,kMaxHcWords,newEvent,newSM);
285 of->WriteBuffer((char *) hcBuffer, hcwords*4);
286 npayloadbyte += hcwords*4;
293 header.fSize = UInt_t(of->Tellp()) - hpos;
294 header.SetAttribute(0); // Valid data
295 of->Seekp(hpos); // Rewind to header position
296 of->WriteBuffer((char *) (& header), sizeof(header));
298 } // loop over sector(SM)
305 //_____________________________________________________________________________
306 void AliTRDrawData::ProduceSMIndexData(UInt_t *buf, Int_t& nw){
308 // This function generates
309 // 1) SM index words : ssssssss ssssssss vvvv rrrr r d t mmmmm
310 // - s : size of SM header (number of header, default = 0x0001)
311 // - v : SM header version (default = 0xa)
312 // - r : reserved for future use (default = 00000)
313 // - d : track data enabled bit (default = 0)
314 // - t : tracklet data enabled bit (default = 1)
315 // - m : stack mask (each bit corresponds a stack, default = 11111)
317 // 2) SM header : rrr c vvvv vvvvvvvv vvvv rrrr bbbbbbbb
318 // - r : reserved for future use (default = 000)
319 // - c : clean check out flag (default = 1)
320 // - v : hardware design revision (default = 0x0404)
321 // - r : reserved for future use (default = 0x0)
322 // - b : physical board ID (default = 0x71)
324 // 3) stack index words : ssssssss ssssssss vvvv mmmm mmmmmmmm
325 // - s : size of stack header (number of header, (default = 0x0007)
326 // - v : header version (default = 0xa)
327 // - m : link mask (default = 0xfff)
329 // 4) stack header : vvvvvvvv vvvvvvvv bbbbbbbb rrrr rrr c
330 // - v : hardware design revision (default = 0x0404)
331 // - b : physical board ID (default = 0x5b)
332 // - r : reserved for future use (default = 0000 000)
333 // - c : clean checkout flag (default = 1)
335 // and 6 dummy words(0x00000000)
338 //buf[nw++] = 0x0001a03f; // SM index words
339 fSMindexPos = nw; // memorize position of the SM index word for re-allocating stack mask
340 buf[nw++] = 0x0001a020; // SM index words
341 buf[nw++] = 0x10404071; // SM header
343 fStackindexPos = nw; // memorize position of the stack index word for future adding
345 for (Int_t istack=0; istack<5; istack++){
346 buf[nw++] = 0x0007afff; // stack index words
347 buf[nw++] = 0x04045b01; // stack header
348 for (Int_t i=0;i<6;i++) buf[nw++] = 0x00000000; // 6 dummy words
349 } // loop over 5 stacks
353 //_____________________________________________________________________________
354 void AliTRDrawData::AssignStackMask(UInt_t *buf, Int_t nStack){
356 // This function re-assign stack mask active(from 0 to 1) in the SM index word
358 buf[fSMindexPos] = buf[fSMindexPos] | ( 1 << nStack );
361 //_____________________________________________________________________________
362 Int_t AliTRDrawData::AddStackIndexWords(UInt_t *buf, Int_t /*nStack*/, Int_t nMax){
364 // This function add stack index words and stack header when there is data for the stack
366 // 1) stack index words : ssssssss ssssssss vvvv mmmm mmmmmmmm
367 // - s : size of stack header (number of header, (default = 0x0007)
368 // - v : header version (default = 0xa)
369 // - m : link mask (default = 0xfff)
370 // - m : link mask (starting value = 0x000)
372 // 2) stack header : vvvvvvvv vvvvvvvv bbbbbbbb rrrr rrr c
373 // - v : hardware design revision (default = 0x0404)
374 // - b : physical board ID (default = 0x5b)
375 // - r : reserved for future use (default = 0000 000)
376 // - c : clean checkout flag (default = 1)
378 // and 6 dummy words(0x00000000)
381 Int_t nAddedWords = 0; // Number of added words
382 if ( ShiftWords(buf, fStackindexPos, 8, nMax)== kFALSE ){
383 AliError("Adding stack header failed.");
387 buf[fStackindexPos++] = 0x0007a000; // stack index words
388 buf[fStackindexPos++] = 0x04045b01; // stack header
389 for (Int_t i=0;i<6;i++) buf[fStackindexPos++] = 0x00000000; // 6 dummy words
395 //_____________________________________________________________________________
396 void AliTRDrawData::AssignLinkMask(UInt_t *buf, Int_t nLayer){
398 // This function re-assign link mask active(from 0 to 1) in the stack index word
400 buf[fStackindexPos-8] = buf[fStackindexPos-8] | ( 3 << (2*nLayer) ); // 3 = 0011
403 //_____________________________________________________________________________
404 Bool_t AliTRDrawData::ShiftWords(UInt_t *buf, Int_t nStart, Int_t nWords, Int_t nMax){
406 // This function shifts n words
408 //if ( nStart+nWords > sizeof(buf)/sizeof(UInt_t) ){
409 // AliError("Words shift failed. No more buffer space.");
413 for ( Int_t iw=nMax; iw>nStart-1; iw--){
414 buf[iw+nWords] = buf[iw];
419 //_____________________________________________________________________________
420 Int_t AliTRDrawData::ProduceHcData(AliTRDarrayADC *digits, Int_t side, Int_t det, UInt_t *buf, Int_t maxSize, Bool_t /*newEvent = kFALSE*/, Bool_t /*newSM = kFALSE*/){
422 // This function produces the raw data for one HC, i.e. tracklets, tracklet endmarkers,
423 // raw data, raw data endmarkers.
424 // This function can be used for both ZS and NZS data
427 Int_t nw = 0; // Number of written words
428 Int_t of = 0; // Number of overflowed words
429 Int_t *tempnw = &nw; // Number of written words for temp. buffer
430 Int_t *tempof = &of; // Number of overflowed words for temp. buffer
431 Int_t layer = fGeo->GetLayer( det ); // Layer
432 Int_t stack = fGeo->GetStack( det ); // Stack
433 Int_t sect = fGeo->GetSector( det ); // Sector (=iDDL)
434 const Int_t kCtype = fGeo->GetStack(det) == 2 ? 0 : 1; // Chamber type (0:C0, 1:C1)
436 Bool_t trackletOn = fFee->GetTracklet(); // tracklet simulation active?
438 AliDebug(1,Form("Producing raw data for sect=%d layer=%d stack=%d side=%d",sect,layer,stack,side));
440 UInt_t *tempBuffer = buf; // tempBuffer used to write ADC data
441 // different in case of tracklet writing
444 tempBuffer = new UInt_t[maxSize];
445 tempnw = new Int_t(0);
446 tempof = new Int_t(0);
449 WriteIntermediateWords(tempBuffer,*tempnw,*tempof,maxSize,det,side);
451 if (digits->HasData()) {
452 // scanning direction such, that tracklet-words are sorted in ascending z and then in ascending y order
453 // ROB numbering on chamber and MCM numbering on ROB increase with decreasing z and increasing y
454 for (Int_t iRobRow = 0; iRobRow <= (kCtype + 3)-1; iRobRow++ ) {
455 // ROB number should be increasing
456 Int_t iRob = iRobRow * 2 + side;
458 for (Int_t iMcmRB = 0; iMcmRB < fGeo->MCMmax(); iMcmRB++ ) {
459 Int_t iMcm = 16 - 4*(iMcmRB/4 + 1) + (iMcmRB%4);
461 fMcmSim->Init(det, iRob, iMcm);
462 fMcmSim->SetData(digits); // no filtering done here (already done in digitizer)
465 Int_t tempNw = fMcmSim->ProduceTrackletStream(&buf[nw], maxSize - nw);
469 AliError(Form("Buffer overflow detected. Please increase the buffer size and recompile."));
474 fMcmSim->ZSMapping(); // Calculate zero suppression mapping
475 // at the moment it has to be rerun here
476 // Write MCM data to temp. buffer
477 Int_t tempNw = fMcmSim->ProduceRawStream( &tempBuffer[*tempnw], maxSize - *tempnw, fEventCounter );
480 *tempnw += maxSize - nw;
481 AliError(Form("Buffer overflow detected. Please increase the buffer size and recompile."));
488 // in case of tracklet writing copy temp data to final buffer
490 if (nw + *tempnw < maxSize) {
491 memcpy(&buf[nw], tempBuffer, *tempnw * sizeof(UInt_t));
495 AliError("Buffer overflow detected");
497 delete [] tempBuffer;
503 // Write end of raw data marker
504 if (nw+3 < maxSize) {
505 buf[nw++] = fgkEndOfDataMarker;
506 buf[nw++] = fgkEndOfDataMarker;
507 buf[nw++] = fgkEndOfDataMarker;
508 buf[nw++] = fgkEndOfDataMarker;
514 AliError("Buffer overflow. Data is truncated. Please increase buffer size and recompile.");
520 //_____________________________________________________________________________
521 AliTRDdigitsManager *AliTRDrawData::Raw2Digits(AliRawReader *rawReader)
524 // Vx of the raw data reading
527 rawReader->Select("TRD"); //[mj]
529 AliTRDarrayADC *digits = 0;
530 AliTRDarrayDictionary *track0 = 0;
531 AliTRDarrayDictionary *track1 = 0;
532 AliTRDarrayDictionary *track2 = 0;
534 //AliTRDSignalIndex *indexes = 0;
535 // Create the digits manager
536 AliTRDdigitsManager* digitsManager = new AliTRDdigitsManager();
537 digitsManager->CreateArrays();
539 if (!fTrackletContainer) {
540 const Int_t kTrackletChmb=256;
541 fTrackletContainer = new UInt_t *[2];
542 fTrackletContainer[0] = new UInt_t[kTrackletChmb];
543 fTrackletContainer[1] = new UInt_t[kTrackletChmb];
544 memset(fTrackletContainer[0], 0, kTrackletChmb*sizeof(UInt_t)); //jkl
545 memset(fTrackletContainer[1], 0, kTrackletChmb*sizeof(UInt_t)); //jkl
548 AliTRDrawStreamBase *pinput = AliTRDrawStreamBase::GetRawStream(rawReader);
549 AliTRDrawStreamBase &input = *pinput;
550 input.SetRawVersion( fFee->GetRAWversion() ); //<= ADDED by MinJung
552 AliInfo(Form("Stream version: %s", input.IsA()->GetName()));
554 // ----- preparing tracklet output -----
555 AliDataLoader *trklLoader = AliRunLoader::Instance()->GetLoader("TRDLoader")->GetDataLoader("tracklets");
557 //AliInfo("Could not get the tracklets data loader, adding it now!");
558 trklLoader = new AliDataLoader("TRD.Tracklets.root","tracklets", "tracklets");
559 AliRunLoader::Instance()->GetLoader("TRDLoader")->AddDataLoader(trklLoader);
561 AliTreeLoader *trklTreeLoader = dynamic_cast<AliTreeLoader*> (trklLoader->GetBaseLoader("tracklets-raw"));
562 if (!trklTreeLoader) {
563 trklTreeLoader = new AliTreeLoader("tracklets-raw", trklLoader);
564 trklLoader->AddBaseLoader(trklTreeLoader);
567 if (!trklTreeLoader->Tree())
568 trklTreeLoader->MakeTree();
570 // Loop through the digits
575 det = input.NextChamber(digitsManager,fTrackletContainer);
577 if (*(fTrackletContainer[0]) > 0 || *(fTrackletContainer[1]) > 0) WriteTracklets(det);
582 digits = (AliTRDarrayADC *) digitsManager->GetDigits(det);
583 track0 = (AliTRDarrayDictionary *) digitsManager->GetDictionary(det,0);
584 track1 = (AliTRDarrayDictionary *) digitsManager->GetDictionary(det,1);
585 track2 = (AliTRDarrayDictionary *) digitsManager->GetDictionary(det,2);
587 if (digits) digits->Compress();
588 if (track0) track0->Compress();
589 if (track1) track1->Compress();
590 if (track2) track2->Compress();
595 trklTreeLoader->WriteData("OVERWRITE");
597 trklLoader->UnloadAll();
599 if (fTrackletContainer){
600 delete [] fTrackletContainer[0];
601 delete [] fTrackletContainer[1];
602 delete [] fTrackletContainer;
603 fTrackletContainer = NULL;
609 return digitsManager;
612 //_____________________________________________________________________________
613 void AliTRDrawData::WriteIntermediateWords(UInt_t* buf, Int_t& nw, Int_t& of, const Int_t& maxSize, const Int_t& det, const Int_t& side) {
615 // write tracklet end marker(0x10001000)
616 // and half chamber headers(H[0] and H[1])
619 Int_t layer = fGeo->GetLayer( det ); // Layer
620 Int_t stack = fGeo->GetStack( det ); // Stack
621 Int_t sect = fGeo->GetSector( det ); // Sector (=iDDL)
622 Int_t rv = fFee->GetRAWversion();
623 const Int_t kNTBin = fDigitsParam->GetNTimeBins(det);
624 Bool_t trackletOn = fFee->GetTracklet();
627 // Write end of tracklet marker
629 buf[nw++] = fgkEndOfTrackletMarker;
630 buf[nw++] = fgkEndOfTrackletMarker; // the number of tracklet end marker should be more than 2
636 // Half Chamber header
637 // h[0] (there are 2 HC headers) xmmm mmmm nnnn nnnq qqss sssp ppcc ci01
638 // , where x : Raw version speacial number (=1)
639 // m : Raw version major number (test pattern, ZS, disable tracklet, 0, options)
640 // n : Raw version minor number
641 // q : number of addtional header words (default = 1)
642 // s : SM sector number (ALICE numbering)
643 // p : plane(layer) number
644 // c : chamber(stack) number
645 // i : side number (0:A, 1:B)
646 Int_t majorv = 0; // The major version number
647 Int_t minorv = 0; // The minor version number
648 Int_t add = 1; // The number of additional header words to follow : now 1, previous 2
649 Int_t tp = 0; // test pattern (default=0)
650 Int_t zs = (rv==3) ? 1 : 0; // zero suppression
651 Int_t dt = (trackletOn) ? 0 : 1; // disable tracklet
653 majorv = (tp<<6) | (zs<<5) | (dt<<4) | 1; // major version
655 x = (1<<31) | (majorv<<24) | (minorv<<17) | (add<<14) | (sect<<9) | (layer<<6) | (stack<<3) | (side<<2) | 1;
656 if (nw < maxSize) buf[nw++] = x; else of++;
658 // h[1] tttt ttbb bbbb bbbb bbbb bbpp pphh hh01
659 // , where t : number of time bins
660 // b : bunch crossing number
661 // p : pretrigger counter
662 // h : pretrigger phase
663 Int_t bcCtr = 99; // bunch crossing counter. Here it is set to 99 always for no reason
664 Int_t ptCtr = 15; // pretrigger counter. Here it is set to 15 always for no reason
665 Int_t ptPhase = 11; // pretrigger phase. Here it is set to 11 always for no reason
666 //x = (bcCtr<<16) | (ptCtr<<12) | (ptPhase<<8) | ((kNTBin-1)<<2) | 1; // old format
667 x = ((kNTBin)<<26) | (bcCtr<<10) | (ptCtr<<6) | (ptPhase<<2) | 1;
668 if (nw < maxSize) buf[nw++] = x; else of++;
671 //_____________________________________________________________________________
672 Bool_t AliTRDrawData::WriteTracklets(Int_t det)
675 // Write the raw data tracklets into seperate file
678 UInt_t **leaves = new UInt_t *[2];
679 for (Int_t i=0; i<2 ;i++){
680 leaves[i] = new UInt_t[258];
681 leaves[i][0] = det; // det
682 leaves[i][1] = i; // side
683 memcpy(leaves[i]+2, fTrackletContainer[i], sizeof(UInt_t) * 256);
687 AliDataLoader *dl = fRunLoader->GetLoader("TRDLoader")->GetDataLoader("tracklets");
689 fTrackletTree = dl->Tree();
692 TBranch *trkbranch = fTrackletTree->GetBranch("trkbranch");
694 trkbranch = fTrackletTree->Branch("trkbranch",leaves[0],"det/i:side/i:tracklets[256]/i");
697 for (Int_t i=0; i<2; i++){
698 if (leaves[i][2]>0) {
699 trkbranch->SetAddress(leaves[i]);
700 fTrackletTree->Fill();
704 // AliDataLoader *dl = fRunLoader->GetLoader("TRDLoader")->GetDataLoader("tracklets"); //jkl: wrong
705 // dl->WriteData("OVERWRITE"); //jkl: wrong