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1/**************************************************************************
2 * Copyright(c) 2007, 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/* $Id$ */
17
18//This class produces PHOS digits of one event
19//using AliPHOSRawFitter.
20//
21// For example:
22// TClonesArray *digits = new TClonesArray("AliPHOSDigit",100);
23// AliRawReader* rawReader = new AliRawReaderDate("2006run2211.raw");
24// AliPHOSRawDecoder dc(rawReader);
25// while (rawReader->NextEvent()) {
26// AliPHOSRawDigiProducer producer;
27// producer.MakeDigits(digits,&dc);
28// }
29
30// Author: Boris Polichtchouk
31
32// --- ROOT system ---
33#include "TClonesArray.h"
34
35// --- AliRoot header files ---
36#include "AliPHOSRawDigiProducer.h"
37#include "AliPHOSRawFitterv0.h"
38#include "AliPHOSGeometry.h"
39#include "AliPHOSDigit.h"
40#include "AliPHOSCalibData.h"
41#include "AliPHOSPulseGenerator.h"
42#include "AliCaloRawStreamV3.h"
43#include "AliLog.h"
44
45ClassImp(AliPHOSRawDigiProducer)
46
47AliPHOSCalibData * AliPHOSRawDigiProducer::fgCalibData = 0 ;
48
49//--------------------------------------------------------------------------------------
50AliPHOSRawDigiProducer::AliPHOSRawDigiProducer():
51 TObject(),
52 fEmcMinE(0.),
53 fCpvMinE(0.),
54 fSampleQualityCut(1.),
55 fSampleToSec(0.),
56 fEmcCrystals(0),
57 fGeom(0),
58 fPulseGenerator(0),
59 fRawReader(0),
60 fRawStream(0),
61 fADCValuesLG(0),
62 fADCValuesHG(0)
63{
64 // Default constructor
65
66 fGeom=AliPHOSGeometry::GetInstance() ;
67 if(!fGeom) fGeom = AliPHOSGeometry::GetInstance("IHEP");
68
69 fEmcCrystals=fGeom->GetNCristalsInModule()*fGeom->GetNModules() ;
70 fPulseGenerator = new AliPHOSPulseGenerator();
71 GetCalibrationParameters() ;
72
73}
74//--------------------------------------------------------------------------------------
75AliPHOSRawDigiProducer::AliPHOSRawDigiProducer(AliRawReader *rawReader,
76 AliAltroMapping **mapping):
77 TObject(),
78 fEmcMinE(0.),
79 fCpvMinE(0.),
80 fSampleQualityCut(1.),
81 fSampleToSec(0.),
82 fEmcCrystals(0),
83 fGeom(0),
84 fPulseGenerator(0),
85 fRawReader(rawReader),
86 fRawStream(0),
87 fADCValuesLG(0),
88 fADCValuesHG(0)
89{
90 // Default constructor
91
92 fGeom=AliPHOSGeometry::GetInstance() ;
93 if(!fGeom) fGeom = AliPHOSGeometry::GetInstance("IHEP");
94
95 fEmcCrystals=fGeom->GetNCristalsInModule()*fGeom->GetNModules() ;
96 fPulseGenerator = new AliPHOSPulseGenerator();
97 GetCalibrationParameters() ;
98
99 fRawStream = new AliCaloRawStreamV3(rawReader,"PHOS",mapping);
100
101}
102//--------------------------------------------------------------------------------------
103AliPHOSRawDigiProducer::AliPHOSRawDigiProducer(const AliPHOSRawDigiProducer &dp):
104 TObject(),
105 fEmcMinE(0.),
106 fCpvMinE(0.),
107 fSampleQualityCut(1.),
108 fSampleToSec(0.),
109 fEmcCrystals(0),
110 fGeom(0),
111 fPulseGenerator(0),
112 fRawReader(0),
113 fRawStream(0),
114 fADCValuesLG(0),
115 fADCValuesHG(0)
116
117{
118 // Copy constructor
119
120 fEmcMinE = dp.fEmcMinE ;
121 fCpvMinE = dp.fCpvMinE ;
122 fSampleQualityCut = dp.fSampleQualityCut;
123 fSampleToSec = dp.fSampleToSec ;
124 fEmcCrystals = dp.fEmcCrystals ;
125 fPulseGenerator = new AliPHOSPulseGenerator();
126 fGeom = dp.fGeom ;
127}
128//--------------------------------------------------------------------------------------
129AliPHOSRawDigiProducer& AliPHOSRawDigiProducer::operator= (const AliPHOSRawDigiProducer &dp)
130{
131 // Assign operator
132
133 if(&dp == this) return *this;
134
135 fEmcMinE = dp.fEmcMinE ;
136 fCpvMinE = dp.fCpvMinE ;
137 fSampleQualityCut = dp.fSampleQualityCut ;
138 fSampleToSec = dp.fSampleToSec ;
139 fEmcCrystals = dp.fEmcCrystals ;
140 fGeom = dp.fGeom ;
141 if(fPulseGenerator) delete fPulseGenerator ;
142 fPulseGenerator = new AliPHOSPulseGenerator();
143 return *this;
144}
145//--------------------------------------------------------------------------------------
146AliPHOSRawDigiProducer::~AliPHOSRawDigiProducer()
147{
148 // Destructor
149 if(fPulseGenerator) delete fPulseGenerator ;
150 fPulseGenerator=0 ;
151 delete fRawStream;
152 delete [] fADCValuesLG;
153 delete [] fADCValuesHG;
154}
155//--------------------------------------------------------------------------------------
156void AliPHOSRawDigiProducer::MakeDigits(TClonesArray *digits, AliPHOSRawFitterv0* fitter)
157{
158 //Makes the job.
159 //TClonesArray *digits and raw data fitter should be provided by calling function.
160
161 digits->Clear();
162
163 Int_t iDigit=0 ;
164 Int_t relId[4], absId=-1, caloFlag=-1;
165
166 const Double_t baseLine=1. ; //Minimal energy of digit in ADC ch.
167
168 //Calculate conversion coeff. from Sample time step to seconds
169 //If OCDB contains negative or zero value - use one from RCU trailer
170 //Negative value in OCDB is used only for simulation of raw digits
171 if(fgCalibData->GetSampleTimeStep()>0.)
172 fSampleToSec=fgCalibData->GetSampleTimeStep() ;
173 else
174 fSampleToSec=fRawStream->GetTSample() ;
175
176 //Temporary array for LowGain digits
177 TClonesArray tmpLG("AliPHOSDigit",10000) ;
178 Int_t ilgDigit=0 ;
179
180 //Let fitter subtract pedestals in case of ZS
181 fitter->SetCalibData(fgCalibData) ;
182
183 while (fRawStream->NextDDL()) {
184 while (fRawStream->NextChannel()) {
185 relId[0] = 5 - fRawStream->GetModule() ; // counts from 1 to 5
186 relId[1] = 0;
187 relId[2] = fRawStream->GetCellX() + 1; // counts from 1 to 64
188 relId[3] = fRawStream->GetCellZ() + 1; // counts from 1 to 56
189 caloFlag = fRawStream->GetCaloFlag(); // 0=LG, 1=HG, 2=TRU
190
191 if(caloFlag!=0 && caloFlag!=1) continue; //TRU data!
192
193 fitter->SetChannelGeo(relId[0],relId[2],relId[3],caloFlag);
194
195 if(fitter->GetAmpOffset()==0 && fitter->GetAmpThreshold()==0) {
196 short value = fRawStream->GetAltroCFG1();
197 bool ZeroSuppressionEnabled = (value >> 15) & 0x1;
198 if(ZeroSuppressionEnabled) {
199 short offset = (value >> 10) & 0xf;
200 short threshold = value & 0x3ff;
201 fitter->SubtractPedestals(kFALSE);
202 fitter->SetAmpOffset(offset);
203 fitter->SetAmpThreshold(threshold);
204 }
205 }
206
207 fGeom->RelToAbsNumbering(relId, absId);
208
209 fitter->SetNBunches(0);
210 Int_t sigStart =0 ;
211 Int_t sigLength=0 ;
212 while (fRawStream->NextBunch()) { //Take the first in time bunch
213 const UShort_t *sig = fRawStream->GetSignals();
214 sigStart = fRawStream->GetStartTimeBin();
215 sigLength = fRawStream->GetBunchLength();
216 fitter->Eval(sig,sigStart,sigLength);
217 if (caloFlag == AliCaloRawStreamV3::kLowGain) {
218 delete [] fADCValuesLG;
219 fADCValuesLG = new Int_t[sigLength];
220 for (Int_t i=0; i<sigLength; i++)
221 fADCValuesLG[sigLength-i-1] = sig[i];
222 }
223 else if (caloFlag == AliCaloRawStreamV3::kHighGain) {
224 delete [] fADCValuesHG;
225 fADCValuesHG = new Int_t[sigLength];
226 for (Int_t i=0; i<sigLength; i++)
227 fADCValuesHG[sigLength-i-1] = sig[i];
228 }
229 } // End of NextBunch()
230
231
232 Double_t energy = fitter->GetEnergy() ;
233 Double_t time = fitter->GetTime() ;
234 if(energy<=baseLine) //in ADC channels
235 continue ;
236
237 //remove digits with bad shape. Fitter should calculate quality so that
238 //in default case quality [0,1], while larger values of quality mean somehow
239 //corrupted samples, 999 means obviously corrupted sample.
240 //It is difficult to fit samples with overflow (even setting cut on overflow values)
241 //because too few points are left to fit. So we do not evaluate samples with overflow
242
243 if(fitter->GetSignalQuality() > fSampleQualityCut && !(fitter->IsOverflow()))
244 continue ;
245
246 energy = CalibrateE(energy,relId,!caloFlag) ;
247// time = CalibrateT(time,relId,lowGainFlag) ;
248
249 //convert time from sample bin units to s
250 time*=fSampleToSec ;
251
252 if(energy <= 0.)
253 continue;
254
255 if (caloFlag == AliCaloRawStreamV3::kLowGain) {
256 new(tmpLG[ilgDigit]) AliPHOSDigit(-1,absId,(Float_t)energy,(Float_t)time);
257 if (sigLength>0 && fADCValuesLG!=0)
258 dynamic_cast<AliPHOSDigit*>(tmpLG.At(ilgDigit))->SetALTROSamplesLG(sigLength,fADCValuesLG);
259 ilgDigit++ ;
260 }
261 else if (caloFlag == AliCaloRawStreamV3::kHighGain) {
262 if(fitter->IsOverflow()) //Keep this digit to replace it by Low Gain later.
263 //If there is no LogGain it wil be removed by cut on Min E
264 new((*digits)[iDigit]) AliPHOSDigit(-1,absId,-1.f,(Float_t)time);
265 else
266 new((*digits)[iDigit]) AliPHOSDigit(-1,absId,(Float_t)energy,(Float_t)time);
267 if (sigLength>0 && fADCValuesHG!=0)
268 dynamic_cast<AliPHOSDigit*>(digits->At(iDigit))->SetALTROSamplesHG(sigLength,fADCValuesHG);
269 iDigit++;
270 }
271 } // End of NextChannel()
272
273 //Now scan created LG and HG digits and keep only those which appeared in both lists
274 //replace energy of HighGain digits only if there is overflow
275 //negative energy (overflow)
276 digits->Sort() ;
277 tmpLG.Sort() ;
278 Int_t iLG = 0;
279 Int_t nLG1 = tmpLG.GetEntriesFast()-1 ;
280
281 for(Int_t iDig=0 ; iDig < digits->GetEntriesFast() ; iDig++) {
282 AliPHOSDigit * digHG = dynamic_cast<AliPHOSDigit*>(digits->At(iDig)) ;
283 if (!digHG) continue;
284 AliPHOSDigit * digLG = dynamic_cast<AliPHOSDigit*>(tmpLG.At(iLG)) ;
285 while(digLG && iLG<nLG1 && digHG->GetId()> digLG->GetId()){
286 iLG++ ;
287 digLG = dynamic_cast<AliPHOSDigit*>(tmpLG.At(iLG)) ;
288 }
289 absId=digHG->GetId() ;
290 fGeom->AbsToRelNumbering(absId,relId) ;
291
292 if(digLG && digHG->GetId() == digLG->GetId()){ //we found pair
293 if(digHG->GetEnergy()<0.){ //This is overflow in HG
294 digHG->SetTime(digLG->GetTime()) ;
295 digHG->SetEnergy(digLG->GetEnergy()) ;
296 }
297 }
298 else{ //no pair - remove
299 if(digHG->GetEnergy()<0.) //no pair, in saturation
300 digits->RemoveAt(iDig) ;
301 }
302 }
303 } // End of NextDDL()
304
305 CleanDigits(digits) ;
306
307}
308//____________________________________________________________________________
309Double_t AliPHOSRawDigiProducer::CalibrateE(Double_t amp, Int_t* relId, Bool_t isLowGain)
310{
311 // Convert EMC LG amplitude to HG (multipli by ~16)
312 // Calibration parameters are taken from calibration data base
313 if(fgCalibData){
314 Int_t module = relId[0];
315 Int_t column = relId[3];
316 Int_t row = relId[2];
317 if(relId[1]==0) { // this is EMC
318 if(isLowGain){
319 amp*= fgCalibData->GetHighLowRatioEmc(module,column,row);
320 }
321 return amp ;
322 }
323 }
324 return 0;
325}
326//____________________________________________________________________________
327Double_t AliPHOSRawDigiProducer::CalibrateT(Double_t time, Int_t * relId, Bool_t /* isLowGain */)
328{
329 //Calibrate time
330 time*=fPulseGenerator->GetRawFormatTimeTrigger() ;
331 if(fgCalibData){
332 Int_t module = relId[0];
333 Int_t column = relId[3];
334 Int_t row = relId[2];
335 if(relId[1]==0) { // this is EMC
336 time += fgCalibData->GetTimeShiftEmc(module,column,row);
337 return time ;
338 }
339 }
340
341 return -999.;
342}
343//____________________________________________________________________________
344void AliPHOSRawDigiProducer::CleanDigits(TClonesArray * digits)
345{
346 // remove digits with amplitudes below threshold.
347 // remove digits in bad channels
348 // sort digits with icreasing AbsId
349
350 //remove digits in bad map and below threshold
351 Bool_t isBadMap = 0 ;
352 if(fgCalibData->GetNumOfEmcBadChannels()){
353 isBadMap=1 ;
354 }
355
356 for(Int_t i=0; i<digits->GetEntriesFast(); i++){
357 AliPHOSDigit * digit = static_cast<AliPHOSDigit*>(digits->At(i)) ;
358 if(!digit)
359 continue ;
360 if ( (IsInEMC(digit) && digit->GetEnergy() < fEmcMinE) ||
361 (IsInCPV(digit) && digit->GetEnergy() < fCpvMinE) ){
362 digits->RemoveAt(i) ;
363 continue ;
364 }
365 if(isBadMap){ //check bad map now
366 Int_t relid[4] ;
367 fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
368 if(fgCalibData->IsBadChannelEmc(relid[0],relid[3],relid[2])){
369 digits->RemoveAt(i) ;
370 }
371 }
372 }
373
374 //Compress, sort and set indexes
375 digits->Compress() ;
376// digits->Sort(); already sorted earlier
377 for (Int_t i = 0 ; i < digits->GetEntriesFast() ; i++) {
378 AliPHOSDigit *digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
379 digit->SetIndexInList(i) ;
380 }
381}
382//____________________________________________________________________________
383Bool_t AliPHOSRawDigiProducer::IsInEMC(AliPHOSDigit * digit) const
384{
385 // Tells if (true) or not (false) the digit is in a PHOS-EMC module
386 return digit->GetId() <= fEmcCrystals ;
387
388}
389
390//____________________________________________________________________________
391Bool_t AliPHOSRawDigiProducer::IsInCPV(AliPHOSDigit * digit) const
392{
393 // Tells if (true) or not (false) the digit is in a PHOS-CPV module
394 return digit->GetId() > fEmcCrystals ;
395}
396//____________________________________________________________________________
397void AliPHOSRawDigiProducer::GetCalibrationParameters()
398{
399 // Set calibration parameters:
400 // if calibration database exists, they are read from database,
401 // otherwise, reconstruction stops in the constructor of AliPHOSCalibData
402 //
403 // It is a user responsilibity to open CDB before reconstruction, for example:
404 // AliCDBStorage* storage = AliCDBManager::Instance()->GetStorage("local://CalibDB");
405
406 if (!fgCalibData){
407 fgCalibData = new AliPHOSCalibData(-1); //use AliCDBManager's run number
408 }
409 if (fgCalibData->GetCalibDataEmc() == 0)
410 AliFatal("Calibration parameters for PHOS EMC not found. Stop reconstruction.\n");
411 if (fgCalibData->GetCalibDataCpv() == 0)
412 AliFatal("Calibration parameters for PHOS CPV not found. Stop reconstruction.\n");
413}