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61e0abb5 | 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 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
ffa6d63b | 19 | // |
61e0abb5 | 20 | ////////////////////////////////////////////////////////////////////////////// |
ab6a174f | 21 | // Class performs digitization of Summable digits from simulated data |
ffa6d63b | 22 | // |
6cc75819 | 23 | // In addition it performs mixing/embedding of summable digits from different events. |
61e0abb5 | 24 | // |
61d80ce0 | 25 | // For each event 3 branches are created in TreeD: |
61e0abb5 | 26 | // "EMCAL" - list of digits |
61d80ce0 | 27 | // "EMCALTRG" - list of trigger digits |
61e0abb5 | 28 | // "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization |
29 | // | |
61e0abb5 | 30 | // |
ffa6d63b | 31 | //////////////////////////////////////////////////////////////////////////////////// |
61e0abb5 | 32 | // |
ffa6d63b | 33 | //*-- Author: Sahal Yacoob (LBL) |
814ad4bf | 34 | // based on : AliEMCALDigitizer |
05a92d59 | 35 | // Modif: |
36 | // August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction | |
6cc75819 | 37 | // of new IO (a la PHOS) |
1963b290 | 38 | // November 2003 Aleksei Pavlinov : adopted for Shish-Kebab geometry |
61d80ce0 | 39 | // July 2011 GCB: Digitizer modified to accomodate embedding. |
40 | // Time calibration added. Decalibration possibility of energy and time added | |
1963b290 | 41 | //_________________________________________________________________________________ |
61e0abb5 | 42 | |
43 | // --- ROOT system --- | |
e939a978 | 44 | #include <TROOT.h> |
45 | #include <TTree.h> | |
46 | #include <TSystem.h> | |
47 | #include <TBenchmark.h> | |
e939a978 | 48 | #include <TBrowser.h> |
49 | #include <TObjectTable.h> | |
50 | #include <TRandom.h> | |
916f1e76 | 51 | #include <TF1.h> |
21e7df44 | 52 | #include <cassert> |
61e0abb5 | 53 | |
54 | // --- AliRoot header files --- | |
b42d4197 | 55 | #include "AliLog.h" |
e4dcc484 | 56 | #include "AliRun.h" |
f21fc003 | 57 | #include "AliDigitizationInput.h" |
5dee926e | 58 | #include "AliRunLoader.h" |
53f1c378 | 59 | #include "AliCDBManager.h" |
60 | #include "AliCDBEntry.h" | |
61e0abb5 | 61 | #include "AliEMCALDigit.h" |
05a92d59 | 62 | #include "AliEMCAL.h" |
5dee926e | 63 | #include "AliEMCALLoader.h" |
61e0abb5 | 64 | #include "AliEMCALDigitizer.h" |
65 | #include "AliEMCALSDigitizer.h" | |
66 | #include "AliEMCALGeometry.h" | |
a435f763 | 67 | #include "AliEMCALCalibData.h" |
33a52e55 | 68 | #include "AliEMCALSimParam.h" |
916f1e76 | 69 | #include "AliEMCALRawDigit.h" |
6995e8b7 | 70 | #include "AliCaloCalibPedestal.h" |
916f1e76 | 71 | |
61d80ce0 | 72 | namespace |
73 | { | |
74 | Double_t HeavisideTheta(Double_t x) | |
75 | { | |
76 | Double_t signal = 0.; | |
77 | ||
78 | if (x > 0.) signal = 1.; | |
79 | ||
80 | return signal; | |
81 | } | |
82 | ||
83 | Double_t AnalogFastORFunction(Double_t *x, Double_t *par) | |
84 | { | |
85 | Double_t v0 = par[0]; | |
86 | Double_t t0 = par[1]; | |
87 | Double_t tr = par[2]; | |
88 | ||
89 | Double_t R1 = 1000.; | |
90 | Double_t C1 = 33e-12; | |
91 | Double_t R2 = 1800; | |
92 | Double_t C2 = 22e-12; | |
93 | ||
94 | Double_t t = x[0]; | |
95 | ||
96 | return (((0.8*(-((TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-t + t0)/(C1*R1))* | |
97 | TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2)) + | |
98 | C1*C2*R1*R2*(1 - (C2*TMath::Power(TMath::E(),(-t + t0)/(C2*R2))*R2)/(-(C1*R1) + C2*R2)))*v0* | |
99 | HeavisideTheta(t - t0))/tr | |
100 | - (0.8*(C1*C2*R1*R2 - | |
101 | (TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C1*R1))* | |
102 | TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2) + | |
103 | (C1*TMath::Power(C2,2)*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C2*R2))* | |
104 | R1*TMath::Power(R2,2))/(C1*R1 - C2*R2))*v0* | |
105 | HeavisideTheta(t - t0 - 1.25*tr))/tr)/(C2*R1)); | |
106 | } | |
107 | } | |
05a92d59 | 108 | |
61e0abb5 | 109 | ClassImp(AliEMCALDigitizer) |
61d80ce0 | 110 | |
111 | ||
61e0abb5 | 112 | //____________________________________________________________________________ |
18a21c7c | 113 | AliEMCALDigitizer::AliEMCALDigitizer() |
114 | : AliDigitizer("",""), | |
115 | fDefaultInit(kTRUE), | |
116 | fDigitsInRun(0), | |
117 | fInit(0), | |
118 | fInput(0), | |
119 | fInputFileNames(0x0), | |
120 | fEventNames(0x0), | |
121 | fDigitThreshold(0), | |
122 | fMeanPhotonElectron(0), | |
5fb45456 | 123 | fGainFluctuations(0), |
18a21c7c | 124 | fPinNoise(0), |
6cc75819 | 125 | fTimeNoise(0), |
f0a6dc6f | 126 | fTimeDelay(0), |
a2f8e711 | 127 | fTimeResolutionPar0(0), |
128 | fTimeResolutionPar1(0), | |
18a21c7c | 129 | fADCchannelEC(0), |
130 | fADCpedestalEC(0), | |
6cc75819 | 131 | fADCchannelECDecal(0), |
132 | fTimeChannel(0), | |
133 | fTimeChannelDecal(0), | |
18a21c7c | 134 | fNADCEC(0), |
135 | fEventFolderName(""), | |
136 | fFirstEvent(0), | |
137 | fLastEvent(0), | |
f21fc003 | 138 | fCalibData(0x0), |
139 | fSDigitizer(0x0) | |
61e0abb5 | 140 | { |
141 | // ctor | |
88cb7938 | 142 | InitParameters() ; |
f21fc003 | 143 | fDigInput = 0 ; // We work in the standalone mode |
839828a6 | 144 | } |
61e0abb5 | 145 | |
839828a6 | 146 | //____________________________________________________________________________ |
18a21c7c | 147 | AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName) |
f21fc003 | 148 | : AliDigitizer("EMCALDigitizer", alirunFileName), |
18a21c7c | 149 | fDefaultInit(kFALSE), |
150 | fDigitsInRun(0), | |
151 | fInit(0), | |
152 | fInput(0), | |
153 | fInputFileNames(0), | |
154 | fEventNames(0), | |
155 | fDigitThreshold(0), | |
156 | fMeanPhotonElectron(0), | |
5fb45456 | 157 | fGainFluctuations(0), |
18a21c7c | 158 | fPinNoise(0), |
6cc75819 | 159 | fTimeNoise(0), |
96d5ea0d | 160 | fTimeDelay(0), |
a2f8e711 | 161 | fTimeResolutionPar0(0), |
162 | fTimeResolutionPar1(0), | |
18a21c7c | 163 | fADCchannelEC(0), |
164 | fADCpedestalEC(0), | |
6cc75819 | 165 | fADCchannelECDecal(0), |
166 | fTimeChannel(0), | |
167 | fTimeChannelDecal(0), | |
18a21c7c | 168 | fNADCEC(0), |
169 | fEventFolderName(eventFolderName), | |
170 | fFirstEvent(0), | |
171 | fLastEvent(0), | |
f21fc003 | 172 | fCalibData(0x0), |
173 | fSDigitizer(0x0) | |
839828a6 | 174 | { |
05a92d59 | 175 | // ctor |
a9485c37 | 176 | InitParameters() ; |
88cb7938 | 177 | Init() ; |
f21fc003 | 178 | fDigInput = 0 ; // We work in the standalone mode |
61e0abb5 | 179 | } |
839828a6 | 180 | |
61e0abb5 | 181 | //____________________________________________________________________________ |
18a21c7c | 182 | AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d) |
183 | : AliDigitizer(d.GetName(),d.GetTitle()), | |
184 | fDefaultInit(d.fDefaultInit), | |
185 | fDigitsInRun(d.fDigitsInRun), | |
186 | fInit(d.fInit), | |
187 | fInput(d.fInput), | |
188 | fInputFileNames(d.fInputFileNames), | |
189 | fEventNames(d.fEventNames), | |
190 | fDigitThreshold(d.fDigitThreshold), | |
191 | fMeanPhotonElectron(d.fMeanPhotonElectron), | |
5fb45456 | 192 | fGainFluctuations(d.fGainFluctuations), |
18a21c7c | 193 | fPinNoise(d.fPinNoise), |
6cc75819 | 194 | fTimeNoise(d.fTimeNoise), |
f0a6dc6f | 195 | fTimeDelay(d.fTimeDelay), |
a2f8e711 | 196 | fTimeResolutionPar0(d.fTimeResolutionPar0), |
197 | fTimeResolutionPar1(d.fTimeResolutionPar1), | |
18a21c7c | 198 | fADCchannelEC(d.fADCchannelEC), |
199 | fADCpedestalEC(d.fADCpedestalEC), | |
6cc75819 | 200 | fADCchannelECDecal(d.fADCchannelECDecal), |
201 | fTimeChannel(d.fTimeChannel), fTimeChannelDecal(d.fTimeChannelDecal), | |
18a21c7c | 202 | fNADCEC(d.fNADCEC), |
203 | fEventFolderName(d.fEventFolderName), | |
204 | fFirstEvent(d.fFirstEvent), | |
205 | fLastEvent(d.fLastEvent), | |
f21fc003 | 206 | fCalibData(d.fCalibData), |
207 | fSDigitizer(d.fSDigitizer ? new AliEMCALSDigitizer(*d.fSDigitizer) : 0) | |
88cb7938 | 208 | { |
209 | // copyy ctor | |
96d5ea0d | 210 | } |
88cb7938 | 211 | |
212 | //____________________________________________________________________________ | |
f21fc003 | 213 | AliEMCALDigitizer::AliEMCALDigitizer(AliDigitizationInput * rd) |
214 | : AliDigitizer(rd,"EMCALDigitizer"), | |
18a21c7c | 215 | fDefaultInit(kFALSE), |
216 | fDigitsInRun(0), | |
217 | fInit(0), | |
218 | fInput(0), | |
219 | fInputFileNames(0), | |
220 | fEventNames(0), | |
da509d54 | 221 | fDigitThreshold(0), |
18a21c7c | 222 | fMeanPhotonElectron(0), |
5fb45456 | 223 | fGainFluctuations(0), |
da509d54 | 224 | fPinNoise(0.), |
6cc75819 | 225 | fTimeNoise(0.), |
f0a6dc6f | 226 | fTimeDelay(0.), |
a2f8e711 | 227 | fTimeResolutionPar0(0.), |
228 | fTimeResolutionPar1(0.), | |
18a21c7c | 229 | fADCchannelEC(0), |
230 | fADCpedestalEC(0), | |
6cc75819 | 231 | fADCchannelECDecal(0), |
232 | fTimeChannel(0), | |
233 | fTimeChannelDecal(0), | |
18a21c7c | 234 | fNADCEC(0), |
235 | fEventFolderName(0), | |
236 | fFirstEvent(0), | |
237 | fLastEvent(0), | |
f21fc003 | 238 | fCalibData(0x0), |
239 | fSDigitizer(0x0) | |
61e0abb5 | 240 | { |
45fa49ca | 241 | // ctor Init() is called by RunDigitizer |
f21fc003 | 242 | fDigInput = rd ; |
243 | fEventFolderName = fDigInput->GetInputFolderName(0) ; | |
244 | SetTitle(dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetFileName(0)); | |
05a92d59 | 245 | InitParameters() ; |
839828a6 | 246 | } |
814ad4bf | 247 | |
839828a6 | 248 | //____________________________________________________________________________ |
249 | AliEMCALDigitizer::~AliEMCALDigitizer() | |
250 | { | |
14ce0a6e | 251 | //dtor |
f5f384f4 | 252 | delete [] fInputFileNames ; |
253 | delete [] fEventNames ; | |
f21fc003 | 254 | if (fSDigitizer) delete fSDigitizer; |
61e0abb5 | 255 | } |
256 | ||
257 | //____________________________________________________________________________ | |
09884213 | 258 | void AliEMCALDigitizer::Digitize(Int_t event) |
05a92d59 | 259 | { |
96d5ea0d | 260 | |
61e0abb5 | 261 | // Makes the digitization of the collected summable digits |
262 | // for this it first creates the array of all EMCAL modules | |
ab6a174f | 263 | // filled with noise and after that adds contributions from |
264 | // SDigits. This design helps to avoid scanning over the | |
265 | // list of digits to add contribution of any new SDigit. | |
266 | // | |
267 | // JLK 26-Jun-2008 | |
268 | // Note that SDigit energy info is stored as an amplitude, so we | |
269 | // must call the Calibrate() method of the SDigitizer to convert it | |
270 | // back to an energy in GeV before adding it to the Digit | |
271 | // | |
1963b290 | 272 | static int nEMC=0; //max number of digits possible |
33c3c91a | 273 | AliRunLoader *rl = AliRunLoader::Instance(); |
5dee926e | 274 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
7e1d9a9b | 275 | |
276 | if(emcalLoader){ | |
6cc75819 | 277 | Int_t readEvent = event ; |
f21fc003 | 278 | // fDigInput is data member from AliDigitizer |
279 | if (fDigInput) | |
280 | readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetCurrentEventNumber() ; | |
6cc75819 | 281 | AliDebug(1,Form("Adding event %d from input stream 0 %s %s", |
282 | readEvent, GetTitle(), fEventFolderName.Data())) ; | |
283 | rl->GetEvent(readEvent); | |
7e1d9a9b | 284 | |
6cc75819 | 285 | TClonesArray * digits = emcalLoader->Digits() ; |
286 | digits->Delete() ; //correct way to clear array when memory is | |
287 | //allocated by objects stored in array | |
88cb7938 | 288 | |
6cc75819 | 289 | // Load Geometry |
290 | AliEMCALGeometry *geom = 0; | |
291 | if (!rl->GetAliRun()) { | |
292 | AliFatal("Could not get AliRun from runLoader"); | |
96d5ea0d | 293 | } |
6cc75819 | 294 | else{ |
295 | AliEMCAL * emcal = (AliEMCAL*)rl->GetAliRun()->GetDetector("EMCAL"); | |
296 | geom = emcal->GetGeometry(); | |
297 | nEMC = geom->GetNCells(); | |
298 | AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s \n", nEMC, geom->GetName())); | |
299 | } | |
300 | ||
301 | Int_t absID = -1 ; | |
302 | ||
303 | digits->Expand(nEMC) ; | |
96d5ea0d | 304 | |
f21fc003 | 305 | // RS create a digitizer on the fly |
306 | if (!fSDigitizer) fSDigitizer = new AliEMCALSDigitizer(rl->GetFileName().Data()); | |
307 | fSDigitizer->SetEventRange(0, -1) ; | |
308 | // | |
309 | //take all the inputs to add together and load the SDigits | |
310 | TObjArray * sdigArray = new TObjArray(fInput) ; | |
311 | sdigArray->AddAt(emcalLoader->SDigits(), 0) ; | |
312 | Int_t i ; | |
313 | Int_t embed = kFALSE; | |
314 | for(i = 1 ; i < fInput ; i++){ | |
315 | TString tempo(fEventNames[i]) ; | |
316 | tempo += i ; | |
6cc75819 | 317 | |
f21fc003 | 318 | AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ; |
6cc75819 | 319 | |
f21fc003 | 320 | if (rl2==0) |
321 | rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ; | |
6cc75819 | 322 | |
f21fc003 | 323 | if (fDigInput) |
324 | readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(i))->GetCurrentEventNumber() ; | |
325 | Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ; | |
326 | rl2->LoadSDigits(); | |
327 | // rl2->LoadDigits(); | |
328 | rl2->GetEvent(readEvent); | |
329 | if(rl2->GetDetectorLoader("EMCAL")) | |
6cc75819 | 330 | { |
331 | AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL")); | |
332 | ||
333 | if(emcalLoader2) { | |
334 | //Merge 2 simulated sdigits | |
335 | if(emcalLoader2->SDigits()){ | |
336 | TClonesArray* sdigits2 = emcalLoader2->SDigits(); | |
337 | sdigArray->AddAt(sdigits2, i) ; | |
1c67f0f5 | 338 | // Check if first sdigit is of embedded type, if so, handle the sdigits differently: |
6cc75819 | 339 | // do not smear energy of embedded, do not add noise to any sdigits |
340 | if(sdigits2->GetEntriesFast()>0){ | |
f21fc003 | 341 | //printf("Merged digit type: %d\n",dynamic_cast<AliEMCALDigit*> (sdigits2->At(0))->GetType()); |
342 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*> (sdigits2->At(0)); | |
343 | if(digit2 && digit2->GetType()==AliEMCALDigit::kEmbedded){ | |
344 | embed = kTRUE; | |
345 | } | |
6cc75819 | 346 | } |
347 | } | |
96d5ea0d | 348 | |
6cc75819 | 349 | }//loader2 |
350 | else AliFatal("EMCAL Loader of second event not available!"); | |
351 | ||
352 | } | |
f21fc003 | 353 | else Fatal("Digitize", "Loader of second input not found"); |
354 | }// input loop | |
355 | ||
356 | //Find the first tower with signal | |
357 | Int_t nextSig = nEMC + 1 ; | |
358 | TClonesArray * sdigits ; | |
359 | for(i = 0 ; i < fInput ; i++){ | |
360 | if(i > 0 && embed) continue; | |
361 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
362 | if(sdigits){ | |
363 | if (sdigits->GetEntriesFast() ){ | |
364 | AliEMCALDigit *sd = dynamic_cast<AliEMCALDigit *>(sdigits->At(0)); | |
365 | if(sd){ | |
366 | Int_t curNext = sd->GetId() ; | |
367 | if(curNext < nextSig) | |
368 | nextSig = curNext ; | |
369 | AliDebug(1,Form("input %i : #sdigits %i \n", | |
370 | i, sdigits->GetEntriesFast())); | |
6cc75819 | 371 | |
f21fc003 | 372 | }//First entry is not NULL |
373 | else { | |
374 | Info("Digitize", "NULL sdigit pointer"); | |
375 | continue; | |
376 | } | |
377 | }//There is at least one entry | |
378 | else { | |
379 | Info("Digitize", "NULL sdigits array"); | |
380 | continue; | |
381 | } | |
382 | }// SDigits array exists | |
383 | else { | |
384 | Info("Digitizer","Null sdigit pointer"); | |
385 | continue; | |
386 | } | |
387 | }// input loop | |
388 | AliDebug(1,Form("FIRST tower with signal %i \n", nextSig)); | |
6cc75819 | 389 | |
f21fc003 | 390 | TArrayI index(fInput) ; |
391 | index.Reset() ; //Set all indexes to zero | |
6cc75819 | 392 | |
f21fc003 | 393 | AliEMCALDigit * digit ; |
394 | AliEMCALDigit * curSDigit ; | |
96d5ea0d | 395 | |
f21fc003 | 396 | //Put Noise contribution, smear time and energy |
397 | Float_t timeResolution = 0; | |
398 | for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC | |
6995e8b7 | 399 | |
400 | if (IsDead(absID)) continue; // Don't instantiate dead digits | |
401 | ||
f21fc003 | 402 | Float_t energy = 0 ; |
96d5ea0d | 403 | |
f21fc003 | 404 | // amplitude set to zero, noise will be added later |
405 | Float_t noiseTime = 0.; | |
406 | if(!embed) noiseTime = TimeOfNoise(); //No need for embedded events? | |
407 | new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0., noiseTime,kFALSE); // absID-1->absID | |
408 | //look if we have to add signal? | |
409 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID | |
6cc75819 | 410 | |
f21fc003 | 411 | if (digit) { |
96d5ea0d | 412 | |
f21fc003 | 413 | if(absID==nextSig){ |
6cc75819 | 414 | |
f21fc003 | 415 | // Calculate time as time of the largest digit |
416 | Float_t time = digit->GetTime() ; | |
417 | Float_t aTime= digit->GetAmplitude() ; | |
6cc75819 | 418 | |
f21fc003 | 419 | // loop over input |
420 | Int_t nInputs = fInput; | |
421 | if(embed) nInputs = 1; // In case of embedding, merge later real digits, do not smear energy and time of data | |
422 | for(i = 0; i< nInputs ; i++){ //loop over (possible) merge sources | |
423 | TClonesArray* sdtclarr = dynamic_cast<TClonesArray *>(sdigArray->At(i)); | |
424 | if(sdtclarr) { | |
425 | Int_t sDigitEntries = sdtclarr->GetEntriesFast(); | |
6cc75819 | 426 | |
f21fc003 | 427 | if(sDigitEntries > index[i] ) |
428 | curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
429 | else | |
430 | curSDigit = 0 ; | |
6cc75819 | 431 | |
f21fc003 | 432 | //May be several digits will contribute from the same input |
433 | while(curSDigit && (curSDigit->GetId() == absID)){ | |
434 | //Shift primary to separate primaries belonging different inputs | |
435 | Int_t primaryoffset ; | |
436 | if(fDigInput) | |
437 | primaryoffset = fDigInput->GetMask(i) ; | |
438 | else | |
439 | primaryoffset = i ; | |
440 | curSDigit->ShiftPrimary(primaryoffset) ; | |
6cc75819 | 441 | |
f21fc003 | 442 | if(curSDigit->GetAmplitude()>aTime) { |
443 | aTime = curSDigit->GetAmplitude(); | |
444 | time = curSDigit->GetTime(); | |
445 | } | |
6cc75819 | 446 | |
f21fc003 | 447 | *digit = *digit + *curSDigit ; //adds amplitudes of each digit |
6cc75819 | 448 | |
f21fc003 | 449 | index[i]++ ; |
6cc75819 | 450 | |
f21fc003 | 451 | if( sDigitEntries > index[i] ) |
452 | curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
453 | else | |
454 | curSDigit = 0 ; | |
455 | }// while | |
456 | }// source exists | |
457 | }// loop over merging sources | |
6cc75819 | 458 | |
459 | ||
f21fc003 | 460 | //Here we convert the summed amplitude to an energy in GeV only for simulation or mixing of simulations |
461 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV | |
6cc75819 | 462 | |
f21fc003 | 463 | // add fluctuations for photo-electron creation |
5fb45456 | 464 | // corrected fluctuations after comparison with beam test, Paraskevi Ganoti (06/11/2011) |
465 | Float_t fluct = static_cast<Float_t>((energy*fMeanPhotonElectron)/fGainFluctuations); | |
466 | energy *= static_cast<Float_t>(gRandom->Poisson(fluct)) / fluct ; | |
467 | ||
f21fc003 | 468 | //calculate and set time |
469 | digit->SetTime(time) ; | |
6cc75819 | 470 | |
f21fc003 | 471 | //Find next signal module |
472 | nextSig = nEMC + 1 ; | |
473 | for(i = 0 ; i < nInputs ; i++){ | |
474 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
6cc75819 | 475 | |
f21fc003 | 476 | if(sdigits){ |
477 | Int_t curNext = nextSig ; | |
478 | if(sdigits->GetEntriesFast() > index[i]) | |
6cc75819 | 479 | { |
480 | AliEMCALDigit * tmpdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i])); | |
481 | if(tmpdigit) | |
f21fc003 | 482 | { |
483 | curNext = tmpdigit->GetId() ; | |
484 | } | |
6cc75819 | 485 | } |
f21fc003 | 486 | if(curNext < nextSig) nextSig = curNext ; |
487 | }// sdigits exist | |
488 | } // input loop | |
6cc75819 | 489 | |
f21fc003 | 490 | }//absID==nextSig |
96d5ea0d | 491 | |
f21fc003 | 492 | // add the noise now, no need for embedded events with real data |
493 | if(!embed) | |
b6ad0139 | 494 | energy += gRandom->Gaus(0., fPinNoise) ; |
96d5ea0d | 495 | |
6cc75819 | 496 | |
f21fc003 | 497 | // JLK 26-June-2008 |
498 | //Now digitize the energy according to the fSDigitizer method, | |
499 | //which merely converts the energy to an integer. Later we will | |
500 | //check that the stored value matches our allowed dynamic ranges | |
501 | digit->SetAmplitude(fSDigitizer->Digitize(energy)) ; | |
96d5ea0d | 502 | |
f21fc003 | 503 | //Set time resolution with final energy |
504 | timeResolution = GetTimeResolution(energy); | |
505 | digit->SetTime(gRandom->Gaus(digit->GetTime(),timeResolution) ) ; | |
506 | AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n", | |
507 | absID, energy, nextSig)); | |
508 | //Add delay to time | |
509 | digit->SetTime(digit->GetTime()+fTimeDelay) ; | |
6cc75819 | 510 | |
f21fc003 | 511 | }// Digit pointer exists |
512 | else{ | |
513 | Info("Digitizer","Digit pointer is null"); | |
514 | } | |
515 | } // for(absID = 0; absID < nEMC; absID++) | |
6cc75819 | 516 | |
517 | //ticks->Delete() ; | |
518 | //delete ticks ; | |
519 | ||
520 | //Embed simulated amplitude (and time?) to real data digits | |
f21fc003 | 521 | if(embed){ |
522 | for(Int_t input = 1; input<fInput; input++){ | |
523 | TClonesArray *realDigits = dynamic_cast<TClonesArray*> (sdigArray->At(input)); | |
524 | if(!realDigits){ | |
525 | AliDebug(1,"No sdigits to merge\n"); | |
526 | continue; | |
527 | } | |
528 | for(Int_t i2 = 0 ; i2 < realDigits->GetEntriesFast() ; i2++){ | |
529 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*>( realDigits->At(i2) ) ; | |
530 | if(digit2){ | |
531 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(digit2->GetId()) ) ; | |
532 | if(digit){ | |
96d5ea0d | 533 | |
f21fc003 | 534 | // Put the embedded cell energy in same units as simulated sdigits -> transform to energy units |
535 | // and multiply to get a big int. | |
536 | Float_t time2 = digit2->GetTime(); | |
537 | Float_t e2 = digit2->GetAmplitude(); | |
538 | CalibrateADCTime(e2,time2,digit2->GetId()); | |
539 | Float_t amp2 = fSDigitizer->Digitize(e2); | |
96d5ea0d | 540 | |
f21fc003 | 541 | Float_t e0 = digit ->GetAmplitude(); |
542 | if(e0>0.01) | |
543 | AliDebug(1,Form("digit 1: Abs ID %d, amp %f, type %d, time %e; digit2: Abs ID %d, amp %f, type %d, time %e\n", | |
544 | digit ->GetId(),digit ->GetAmplitude(), digit ->GetType(), digit->GetTime(), | |
545 | digit2->GetId(),amp2, digit2->GetType(), time2 )); | |
96d5ea0d | 546 | |
f21fc003 | 547 | // Sum amplitudes, change digit amplitude |
548 | digit->SetAmplitude( digit->GetAmplitude() + amp2); | |
549 | // Rough assumption, assign time of the largest of the 2 digits, | |
550 | // data or signal to the final digit. | |
551 | if(amp2 > digit->GetAmplitude()) digit->SetTime(time2); | |
552 | //Mark the new digit as embedded | |
553 | digit->SetType(AliEMCALDigit::kEmbedded); | |
6cc75819 | 554 | |
f21fc003 | 555 | if(digit2->GetAmplitude()>0.01 && e0> 0.01 ) |
556 | AliDebug(1,Form("Embedded digit: Abs ID %d, amp %f, type %d\n", | |
557 | digit->GetId(), digit->GetAmplitude(), digit->GetType())); | |
558 | }//digit2 | |
559 | }//digit2 | |
560 | }//loop digit 2 | |
561 | }//input loop | |
562 | }//embed | |
563 | ||
564 | //JLK is it better to call Clear() here? | |
565 | delete sdigArray ; //We should not delete its contents | |
566 | ||
567 | //remove digits below thresholds | |
568 | // until 10-02-2010 remove digits with energy smaller than fDigitThreshold 3*fPinNoise | |
569 | // now, remove digits with Digitized ADC smaller than fDigitThreshold = 3, | |
570 | // before merge in the same loop real data digits if available | |
571 | Float_t energy = 0; | |
572 | Float_t time = 0; | |
573 | for(i = 0 ; i < nEMC ; i++){ | |
574 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ; | |
575 | if(digit){ | |
96d5ea0d | 576 | |
f21fc003 | 577 | //Then get the energy in GeV units. |
578 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; | |
579 | //Then digitize using the calibration constants of the ocdb | |
580 | Float_t ampADC = energy; | |
581 | DigitizeEnergyTime(ampADC, time, digit->GetId()) ; | |
582 | if(ampADC < fDigitThreshold) | |
583 | digits->RemoveAt(i) ; | |
7d525d9d | 584 | |
f21fc003 | 585 | }// digit exists |
586 | } // digit loop | |
587 | ||
588 | digits->Compress() ; | |
589 | ||
590 | Int_t ndigits = digits->GetEntriesFast() ; | |
591 | ||
592 | //JLK 26-June-2008 | |
593 | //After we have done the summing and digitizing to create the | |
594 | //digits, now we want to calibrate the resulting amplitude to match | |
595 | //the dynamic range of our real data. | |
596 | for (i = 0 ; i < ndigits ; i++) { | |
597 | digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ; | |
598 | if(digit){ | |
599 | digit->SetIndexInList(i) ; | |
600 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; | |
601 | time = digit->GetTime(); | |
602 | Float_t ampADC = energy; | |
603 | DigitizeEnergyTime(ampADC, time, digit->GetId()); | |
604 | digit->SetAmplitude(ampADC) ; | |
605 | digit->SetTime(time); | |
606 | // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude()); | |
607 | }// digit exists | |
608 | }//Digit loop | |
6cc75819 | 609 | |
7e1d9a9b | 610 | } |
611 | else AliFatal("EMCALLoader is NULL!") ; | |
6cc75819 | 612 | |
814ad4bf | 613 | } |
61e0abb5 | 614 | |
6cc75819 | 615 | //_____________________________________________________________________ |
616 | void AliEMCALDigitizer::DigitizeEnergyTime(Float_t & energy, Float_t & time, const Int_t absId) | |
814ad4bf | 617 | { |
ab6a174f | 618 | // JLK 26-June-2008 |
e4dcc484 | 619 | // Returns digitized value of the energy in a cell absId |
ab6a174f | 620 | // using the calibration constants stored in the OCDB |
621 | // or default values if no CalibData object is found. | |
622 | // This effectively converts everything to match the dynamic range | |
623 | // of the real data we will collect | |
624 | // | |
53f1c378 | 625 | // Load Geometry |
626 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
d62a891a | 627 | |
96d5ea0d | 628 | if (geom==0){ |
629 | AliFatal("Did not get geometry from EMCALLoader"); | |
6cc75819 | 630 | return; |
e4dcc484 | 631 | } |
5eb74a51 | 632 | |
6cc75819 | 633 | Int_t iSupMod = -1; |
634 | Int_t nModule = -1; | |
635 | Int_t nIphi = -1; | |
636 | Int_t nIeta = -1; | |
637 | Int_t iphi = -1; | |
638 | Int_t ieta = -1; | |
639 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
640 | if(!bCell) | |
641 | Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ; | |
642 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
96d5ea0d | 643 | |
6cc75819 | 644 | if(fCalibData) { |
645 | fADCpedestalEC = fCalibData->GetADCpedestal (iSupMod,ieta,iphi); | |
646 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
647 | fADCchannelECDecal = fCalibData->GetADCchannelDecal (iSupMod,ieta,iphi); | |
031c3928 | 648 | fTimeChannel = fCalibData->GetTimeChannel (iSupMod,ieta,iphi,0); // Assign bunch crossing number equal to 0 (has simulation different bunch crossings?) |
6cc75819 | 649 | fTimeChannelDecal = fCalibData->GetTimeChannelDecal(iSupMod,ieta,iphi); |
650 | } | |
651 | ||
652 | //Apply calibration to get ADC counts and partial decalibration as especified in OCDB | |
653 | energy = (energy + fADCpedestalEC)/fADCchannelEC/fADCchannelECDecal ; | |
654 | time += fTimeChannel-fTimeChannelDecal; | |
655 | ||
656 | if(energy > fNADCEC ) | |
657 | energy = fNADCEC ; | |
658 | } | |
829ba234 | 659 | |
63c22917 | 660 | //_____________________________________________________________________ |
52e22b66 | 661 | void AliEMCALDigitizer::Decalibrate(AliEMCALDigit *digit) |
63c22917 | 662 | { |
663 | // Load Geometry | |
52e22b66 | 664 | const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance(); |
63c22917 | 665 | |
52e22b66 | 666 | if (!geom) { |
63c22917 | 667 | AliFatal("Did not get geometry from EMCALLoader"); |
668 | return; | |
669 | } | |
670 | ||
52e22b66 | 671 | Int_t absId = digit->GetId(); |
63c22917 | 672 | Int_t iSupMod = -1; |
673 | Int_t nModule = -1; | |
674 | Int_t nIphi = -1; | |
675 | Int_t nIeta = -1; | |
676 | Int_t iphi = -1; | |
677 | Int_t ieta = -1; | |
52e22b66 | 678 | |
63c22917 | 679 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; |
52e22b66 | 680 | |
6995e8b7 | 681 | if (!bCell) Error("Decalibrate","Wrong cell id number : absId %i ", absId) ; |
63c22917 | 682 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); |
683 | ||
52e22b66 | 684 | if (fCalibData) { |
63c22917 | 685 | fADCchannelEC = fCalibData->GetADCchannel(iSupMod,ieta,iphi); |
52e22b66 | 686 | float factor = 1./(fADCchannelEC/0.0162); |
687 | ||
688 | *digit = *digit * factor; | |
63c22917 | 689 | } |
63c22917 | 690 | } |
691 | ||
6cc75819 | 692 | //_____________________________________________________________________ |
693 | void AliEMCALDigitizer::CalibrateADCTime(Float_t & adc, Float_t & time, const Int_t absId) | |
694 | { | |
695 | // Returns the energy in a cell absId with a given adc value | |
696 | // using the calibration constants stored in the OCDB. Time also corrected from parameter in OCDB | |
697 | // Used in case of embedding, transform ADC counts from real event into energy | |
698 | // so that we can add the energy of the simulated sdigits which are in energy | |
699 | // units. | |
700 | // Same as in AliEMCALClusterizer::Calibrate() but here we do not reject channels being marked as hot | |
701 | // or with time out of window | |
702 | ||
703 | // Load Geometry | |
704 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
705 | ||
706 | if (!geom){ | |
707 | AliFatal("Did not get geometry from EMCALLoader"); | |
708 | return; | |
709 | } | |
710 | ||
711 | Int_t iSupMod = -1; | |
712 | Int_t nModule = -1; | |
713 | Int_t nIphi = -1; | |
714 | Int_t nIeta = -1; | |
715 | Int_t iphi = -1; | |
716 | Int_t ieta = -1; | |
717 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
718 | if(!bCell) | |
719 | Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ; | |
720 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
721 | ||
722 | if(fCalibData) { | |
723 | fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi); | |
724 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
031c3928 | 725 | fTimeChannel = fCalibData->GetTimeChannel(iSupMod,ieta,iphi,0);// Assign bunch crossing number equal to 0 (has simulation different bunch crossings?) |
6cc75819 | 726 | } |
727 | ||
728 | adc = adc * fADCchannelEC - fADCpedestalEC; | |
729 | time -= fTimeChannel; | |
96d5ea0d | 730 | |
d62a891a | 731 | |
61e0abb5 | 732 | } |
733 | ||
6cc75819 | 734 | |
61e0abb5 | 735 | //____________________________________________________________________________ |
f21fc003 | 736 | void AliEMCALDigitizer::Digitize(Option_t *option) |
05a92d59 | 737 | { |
45fa49ca | 738 | // Steering method to process digitization for events |
739 | // in the range from fFirstEvent to fLastEvent. | |
740 | // This range is optionally set by SetEventRange(). | |
741 | // if fLastEvent=-1, then process events until the end. | |
742 | // by default fLastEvent = fFirstEvent (process only one event) | |
05a92d59 | 743 | |
88cb7938 | 744 | if (!fInit) { // to prevent overwrite existing file |
f21fc003 | 745 | Error( "Digitize", "Give a version name different from %s", fEventFolderName.Data() ) ; |
88cb7938 | 746 | return ; |
747 | } | |
748 | ||
814ad4bf | 749 | if (strstr(option,"print")) { |
b42d4197 | 750 | |
88cb7938 | 751 | Print(); |
814ad4bf | 752 | return ; |
753 | } | |
754 | ||
61e0abb5 | 755 | if(strstr(option,"tim")) |
756 | gBenchmark->Start("EMCALDigitizer"); | |
5dee926e | 757 | |
33c3c91a | 758 | AliRunLoader *rl = AliRunLoader::Instance(); |
5dee926e | 759 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
96d5ea0d | 760 | Int_t nEvents = 0; |
761 | if(!emcalLoader){ | |
762 | AliFatal("Did not get the Loader"); | |
30bc5594 | 763 | } |
96d5ea0d | 764 | else{ |
64942713 | 765 | |
96d5ea0d | 766 | if (fLastEvent == -1) { |
767 | fLastEvent = rl->GetNumberOfEvents() - 1 ; | |
768 | } | |
f21fc003 | 769 | else if (fDigInput) |
96d5ea0d | 770 | fLastEvent = fFirstEvent ; // what is this ?? |
771 | ||
772 | nEvents = fLastEvent - fFirstEvent + 1; | |
773 | Int_t ievent = -1; | |
88cb7938 | 774 | |
96d5ea0d | 775 | TClonesArray* digitsTMP = new TClonesArray("AliEMCALDigit", 32*96); |
776 | TClonesArray* digitsTRG = new TClonesArray("AliEMCALRawDigit", 32*96); | |
88cb7938 | 777 | |
96d5ea0d | 778 | rl->LoadSDigits("EMCAL"); |
779 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
780 | ||
781 | rl->GetEvent(ievent); | |
782 | ||
783 | Digitize(ievent) ; //Add prepared SDigits to digits and add the noise | |
784 | ||
785 | WriteDigits() ; | |
786 | ||
787 | //Trigger Digits | |
788 | //------------------------------------- | |
789 | ||
88cb7938 | 790 | |
96d5ea0d | 791 | Digits2FastOR(digitsTMP, digitsTRG); |
792 | ||
793 | WriteDigits(digitsTRG); | |
794 | ||
795 | (emcalLoader->TreeD())->Fill(); | |
796 | ||
797 | emcalLoader->WriteDigits( "OVERWRITE"); | |
96d5ea0d | 798 | |
799 | Unload(); | |
800 | ||
801 | digitsTRG ->Delete(); | |
802 | digitsTMP ->Delete(); | |
803 | ||
804 | //------------------------------------- | |
805 | ||
806 | if(strstr(option,"deb")) | |
807 | PrintDigits(option); | |
808 | if(strstr(option,"table")) gObjectTable->Print(); | |
809 | ||
810 | //increment the total number of Digits per run | |
811 | fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ; | |
812 | }//loop | |
f21fc003 | 813 | |
96d5ea0d | 814 | }//loader exists |
64942713 | 815 | |
61e0abb5 | 816 | if(strstr(option,"tim")){ |
817 | gBenchmark->Stop("EMCALDigitizer"); | |
0bd264d5 | 818 | Float_t cputime = gBenchmark->GetCpuTime("EMCALDigitizer"); |
819 | Float_t avcputime = cputime; | |
820 | if(nEvents==0) avcputime = 0 ; | |
821 | AliInfo(Form("Digitize: took %f seconds for Digitizing %f seconds per event", cputime, avcputime)) ; | |
88cb7938 | 822 | } |
61e0abb5 | 823 | } |
824 | ||
a2f8e711 | 825 | //__________________________________________________________________ |
826 | Float_t AliEMCALDigitizer::GetTimeResolution(Float_t energy) const | |
827 | { | |
828 | // From F. Blanco | |
829 | Float_t res = -1; | |
830 | if (energy > 0) { | |
831 | res = TMath::Sqrt(fTimeResolutionPar0 + | |
832 | fTimeResolutionPar1/(energy*energy) ); | |
833 | } | |
b2a891e0 | 834 | // parametrization above is for ns. Convert to seconds: |
835 | return res*1e-9; | |
a2f8e711 | 836 | } |
837 | ||
916f1e76 | 838 | //____________________________________________________________________________ |
839 | void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG) | |
840 | { | |
de39a0ff | 841 | // FEE digits afterburner to produce TRG digits |
842 | // we are only interested in the FEE digit deposited energy | |
843 | // to be converted later into a voltage value | |
844 | ||
845 | // push the FEE digit to its associated FastOR (numbered from 0:95) | |
846 | // TRU is in charge of summing module digits | |
847 | ||
848 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
849 | ||
de39a0ff | 850 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); |
6995e8b7 | 851 | if (!emcalLoader) AliFatal("Did not get the Loader"); |
852 | ||
853 | const AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance(); | |
7e1d9a9b | 854 | |
855 | // build FOR from simulated digits | |
856 | // and xfer to the corresponding TRU input (mapping) | |
7d525d9d | 857 | |
52e22b66 | 858 | TClonesArray* sdigits = emcalLoader->SDigits(); |
859 | ||
860 | TClonesArray *digits = (TClonesArray*)sdigits->Clone(); | |
861 | ||
63c22917 | 862 | AliDebug(999,Form("=== %d SDigits to trigger digits ===",digits->GetEntriesFast())); |
863 | ||
7e1d9a9b | 864 | TIter NextDigit(digits); |
865 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
96d5ea0d | 866 | { |
6995e8b7 | 867 | if (IsDead(digit)) continue; |
868 | ||
869 | Decalibrate(digit); | |
52e22b66 | 870 | |
7e1d9a9b | 871 | Int_t id = digit->GetId(); |
7d525d9d | 872 | |
7e1d9a9b | 873 | Int_t trgid; |
874 | if (geom && geom->GetFastORIndexFromCellIndex(id , trgid)) | |
875 | { | |
876 | AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id)); | |
877 | ||
878 | AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid)); | |
879 | ||
880 | if (!d) | |
881 | { | |
882 | new((*digitsTMP)[trgid]) AliEMCALDigit(*digit); | |
883 | d = (AliEMCALDigit*)digitsTMP->At(trgid); | |
884 | d->SetId(trgid); | |
885 | } | |
886 | else | |
887 | { | |
888 | *d = *d + *digit; | |
889 | } | |
890 | } | |
96d5ea0d | 891 | } |
7e1d9a9b | 892 | |
893 | if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast()); | |
63c22917 | 894 | |
7e1d9a9b | 895 | Int_t nSamples = 32; |
896 | Int_t *timeSamples = new Int_t[nSamples]; | |
897 | ||
898 | NextDigit = TIter(digitsTMP); | |
899 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
96d5ea0d | 900 | { |
7e1d9a9b | 901 | if (digit) |
902 | { | |
903 | Int_t id = digit->GetId(); | |
804b828a | 904 | Float_t time = 50.e-9; |
7e1d9a9b | 905 | |
906 | Double_t depositedEnergy = 0.; | |
907 | for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j); | |
7d525d9d | 908 | |
7e1d9a9b | 909 | if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy); |
910 | ||
911 | // FIXME: Check digit time! | |
912 | if (depositedEnergy) | |
7d525d9d | 913 | { |
52e22b66 | 914 | depositedEnergy += gRandom->Gaus(0., .08); |
63c22917 | 915 | |
7e1d9a9b | 916 | DigitalFastOR(time, depositedEnergy, timeSamples, nSamples); |
917 | ||
918 | for (Int_t j=0;j<nSamples;j++) | |
919 | { | |
920 | timeSamples[j] = ((j << 12) & 0xFF000) | (timeSamples[j] & 0xFFF); | |
921 | } | |
922 | ||
923 | new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples); | |
63c22917 | 924 | |
925 | if (AliDebugLevel()) ((AliEMCALRawDigit*)digitsTRG->At(digitsTRG->GetEntriesFast() - 1))->Print(""); | |
7d525d9d | 926 | } |
7e1d9a9b | 927 | } |
96d5ea0d | 928 | } |
7e1d9a9b | 929 | |
930 | delete [] timeSamples; | |
52e22b66 | 931 | |
932 | if (digits && digits->GetEntriesFast()) digits->Delete(); | |
916f1e76 | 933 | } |
934 | ||
935 | //____________________________________________________________________________ | |
936 | void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples ) | |
937 | { | |
938 | // parameters: | |
939 | // id: 0..95 | |
940 | const Int_t reso = 11; // 11-bit resolution ADC | |
941 | const Double_t vFSR = 1; // Full scale input voltage range | |
63c22917 | 942 | // const Double_t dNe = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30 |
943 | const Double_t dNe = 125/1.3; // F-ALTRO max V. FEE: factor 4 | |
916f1e76 | 944 | const Double_t vA = .136e-6; // CSP output range: 0.136uV/e- |
63c22917 | 945 | const Double_t rise = 50e-9; // rise time (10-90%) of the FastOR signal before shaping |
916f1e76 | 946 | |
947 | const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz) | |
948 | ||
a2f8e711 | 949 | Double_t vV = 1000. * dE * dNe * vA; // GeV 2 MeV |
63c22917 | 950 | |
916f1e76 | 951 | TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3); |
952 | signalF.SetParameter( 0, vV ); | |
953 | signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths | |
954 | signalF.SetParameter( 2, rise ); | |
955 | ||
956 | for (Int_t iTime=0; iTime<nSamples; iTime++) | |
957 | { | |
958 | // FIXME: add noise (probably not simply Gaussian) according to DA measurements | |
959 | // probably plan an access to OCDB | |
960 | ||
961 | timeSamples[iTime] = int((TMath::Power(2, reso) / vFSR) * signalF.Eval(iTime * kTimeBinWidth) + 0.5); | |
962 | } | |
963 | } | |
964 | ||
05a92d59 | 965 | //____________________________________________________________________________ |
966 | Bool_t AliEMCALDigitizer::Init() | |
967 | { | |
968 | // Makes all memory allocations | |
88cb7938 | 969 | fInit = kTRUE ; |
33c3c91a | 970 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
61d80ce0 | 971 | |
5dee926e | 972 | if ( emcalLoader == 0 ) { |
973 | Fatal("Init", "Could not obtain the AliEMCALLoader"); | |
05a92d59 | 974 | return kFALSE; |
975 | } | |
61d80ce0 | 976 | |
45fa49ca | 977 | fFirstEvent = 0 ; |
978 | fLastEvent = fFirstEvent ; | |
979 | ||
f21fc003 | 980 | if(fDigInput) |
981 | fInput = fDigInput->GetNinputs() ; | |
88cb7938 | 982 | else |
983 | fInput = 1 ; | |
984 | ||
985 | fInputFileNames = new TString[fInput] ; | |
986 | fEventNames = new TString[fInput] ; | |
987 | fInputFileNames[0] = GetTitle() ; | |
988 | fEventNames[0] = fEventFolderName.Data() ; | |
989 | Int_t index ; | |
990 | for (index = 1 ; index < fInput ; index++) { | |
f21fc003 | 991 | fInputFileNames[index] = dynamic_cast<AliStream*>(fDigInput->GetInputStream(index))->GetFileName(0); |
992 | TString tempo = fDigInput->GetInputFolderName(index) ; | |
993 | fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fDigInput | |
05a92d59 | 994 | } |
f21fc003 | 995 | |
53f1c378 | 996 | //Calibration instance |
997 | fCalibData = emcalLoader->CalibData(); | |
88cb7938 | 998 | return fInit ; |
05a92d59 | 999 | } |
1000 | ||
1001 | //____________________________________________________________________________ | |
1002 | void AliEMCALDigitizer::InitParameters() | |
14ce0a6e | 1003 | { |
29b5d492 | 1004 | // Parameter initialization for digitizer |
6569f329 | 1005 | |
1006 | // Get the parameters from the OCDB via the loader | |
1007 | AliRunLoader *rl = AliRunLoader::Instance(); | |
1008 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
1009 | AliEMCALSimParam * simParam = 0x0; | |
1010 | if(emcalLoader) simParam = emcalLoader->SimulationParameters(); | |
1011 | ||
1012 | if(!simParam){ | |
61d80ce0 | 1013 | simParam = AliEMCALSimParam::GetInstance(); |
1014 | AliWarning("Simulation Parameters not available in OCDB?"); | |
6569f329 | 1015 | } |
61d80ce0 | 1016 | |
5fb45456 | 1017 | fMeanPhotonElectron = simParam->GetMeanPhotonElectron() ; // 4400; // electrons per GeV |
1018 | fGainFluctuations = simParam->GetGainFluctuations() ; // 15.0; | |
1019 | ||
6569f329 | 1020 | fPinNoise = simParam->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data |
33a52e55 | 1021 | if (fPinNoise < 0.0001 ) |
88cb7938 | 1022 | Warning("InitParameters", "No noise added\n") ; |
6cc75819 | 1023 | fTimeNoise = simParam->GetTimeNoise(); // 1.28E-5 s |
6569f329 | 1024 | fDigitThreshold = simParam->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma |
a2f8e711 | 1025 | fTimeResolutionPar0 = simParam->GetTimeResolutionPar0(); |
1026 | fTimeResolutionPar1 = simParam->GetTimeResolutionPar1(); | |
f0a6dc6f | 1027 | fTimeDelay = simParam->GetTimeDelay(); //600e-9 ; // 600 ns |
61d80ce0 | 1028 | |
97075cd8 | 1029 | // These defaults are normally not used. |
1030 | // Values are read from calibration database instead | |
33a52e55 | 1031 | fADCchannelEC = 0.0153; // Update 24 Apr 2007: 250./16/1024 - width of one ADC channel in GeV |
6cc75819 | 1032 | fADCpedestalEC = 0.0 ; // GeV |
1033 | fADCchannelECDecal = 1.0; // No decalibration by default | |
1034 | fTimeChannel = 0.0; // No time calibration by default | |
1035 | fTimeChannelDecal = 0.0; // No time decalibration by default | |
33a52e55 | 1036 | |
6cc75819 | 1037 | fNADCEC = simParam->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536 |
61d80ce0 | 1038 | |
5fb45456 | 1039 | AliDebug(2,Form("Mean Photon Electron %d, Gain Fluct. %2.1f; Noise: APD %f, Time %f; Digit Threshold %d,Time Resolution Par0 %g Par1 %g,NADCEC %d", |
1040 | fMeanPhotonElectron, fGainFluctuations, fPinNoise,fTimeNoise, fDigitThreshold,fTimeResolutionPar0,fTimeResolutionPar1,fNADCEC)); | |
1041 | ||
05a92d59 | 1042 | } |
61e0abb5 | 1043 | |
fe93d365 | 1044 | //__________________________________________________________________ |
1963b290 | 1045 | void AliEMCALDigitizer::Print1(Option_t * option) |
6cc75819 | 1046 | { // 19-nov-04 - just for convenience |
1963b290 | 1047 | Print(); |
1048 | PrintDigits(option); | |
1049 | } | |
1050 | ||
61e0abb5 | 1051 | //__________________________________________________________________ |
6cc75819 | 1052 | void AliEMCALDigitizer::Print (Option_t * ) const |
88cb7938 | 1053 | { |
1054 | // Print Digitizer's parameters | |
fdebddeb | 1055 | printf("Print: \n------------------- %s -------------", GetName() ) ; |
88cb7938 | 1056 | if( strcmp(fEventFolderName.Data(), "") != 0 ){ |
1057 | printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ; | |
1058 | ||
1059 | Int_t nStreams ; | |
f21fc003 | 1060 | if (fDigInput) |
88cb7938 | 1061 | nStreams = GetNInputStreams() ; |
1062 | else | |
1063 | nStreams = fInput ; | |
61d80ce0 | 1064 | |
53e430a3 | 1065 | AliRunLoader *rl=0; |
88cb7938 | 1066 | |
1067 | Int_t index = 0 ; | |
1068 | for (index = 0 ; index < nStreams ; index++) { | |
1069 | TString tempo(fEventNames[index]) ; | |
1070 | tempo += index ; | |
5dee926e | 1071 | if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0) |
96d5ea0d | 1072 | rl = AliRunLoader::Open(fInputFileNames[index], tempo) ; |
5dee926e | 1073 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1074 | if(emcalLoader){ |
1075 | TString fileName( emcalLoader->GetSDigitsFileName() ) ; | |
1076 | if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name | |
1077 | fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ; | |
1078 | printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ; | |
1079 | }//loader | |
88cb7938 | 1080 | } |
61d80ce0 | 1081 | |
33c3c91a | 1082 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
61d80ce0 | 1083 | |
96d5ea0d | 1084 | if(emcalLoader) printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ; |
1085 | else printf("\nNULL LOADER"); | |
61d80ce0 | 1086 | |
88cb7938 | 1087 | printf("\nWith following parameters:\n") ; |
6cc75819 | 1088 | printf(" Electronics noise in EMC, APD (fPinNoise) = %f, Time = %f \n", fPinNoise, fTimeNoise) ; |
4354827d | 1089 | printf(" Threshold in Tower (fDigitThreshold) = %d\n", fDigitThreshold) ; |
88cb7938 | 1090 | printf("---------------------------------------------------\n") ; |
ea5f3389 | 1091 | } |
1092 | else | |
fdebddeb | 1093 | printf("Print: AliEMCALDigitizer not initialized") ; |
61e0abb5 | 1094 | } |
814ad4bf | 1095 | |
e41b8233 | 1096 | //__________________________________________________________________ |
14ce0a6e | 1097 | void AliEMCALDigitizer::PrintDigits(Option_t * option) |
1098 | { | |
1099 | //utility method for printing digit information | |
61d80ce0 | 1100 | |
33c3c91a | 1101 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1102 | if(emcalLoader){ |
1103 | TClonesArray * digits = emcalLoader->Digits() ; | |
1104 | TClonesArray * sdigits = emcalLoader->SDigits() ; | |
1105 | ||
1106 | printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ; | |
1107 | printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber()); | |
1108 | ||
1109 | if(strstr(option,"all")){ | |
1110 | //loop over digits | |
1111 | AliEMCALDigit * digit; | |
1112 | printf("\nEMC digits (with primaries):\n") ; | |
1113 | printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ; | |
1114 | Int_t index ; | |
1115 | for (index = 0 ; index < digits->GetEntries() ; index++) { | |
1116 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ; | |
1117 | if(digit){ | |
1118 | printf("\n%6d %8f %6.5e %4d %2d : ", | |
1119 | digit->GetId(), digit->GetAmplitude(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ; | |
1120 | Int_t iprimary; | |
1121 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) { | |
1122 | printf("%d ",digit->GetPrimary(iprimary+1) ) ; | |
1123 | } | |
1124 | }// digit exists | |
1125 | }// loop | |
1126 | } | |
1127 | printf("\n"); | |
1128 | }// loader exists | |
1129 | else printf("NULL LOADER, cannot print\n"); | |
61e0abb5 | 1130 | } |
05a92d59 | 1131 | |
1132 | //__________________________________________________________________ | |
1133 | Float_t AliEMCALDigitizer::TimeOfNoise(void) | |
04f0bda3 | 1134 | { |
1135 | // Calculates the time signal generated by noise | |
6cc75819 | 1136 | //printf("Time noise %e\n",fTimeNoise); |
1137 | return gRandom->Rndm() * fTimeNoise; | |
05a92d59 | 1138 | } |
1139 | ||
88cb7938 | 1140 | //__________________________________________________________________ |
1141 | void AliEMCALDigitizer::Unload() | |
1142 | { | |
fdebddeb | 1143 | // Unloads the SDigits and Digits |
5dee926e | 1144 | AliRunLoader *rl=0; |
1145 | ||
88cb7938 | 1146 | Int_t i ; |
1147 | for(i = 1 ; i < fInput ; i++){ | |
1148 | TString tempo(fEventNames[i]) ; | |
5dee926e | 1149 | tempo += i; |
1150 | if ((rl = AliRunLoader::GetRunLoader(tempo))) | |
1151 | rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ; | |
88cb7938 | 1152 | } |
33c3c91a | 1153 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1154 | if(emcalLoader)emcalLoader->UnloadDigits() ; |
1155 | else AliFatal("Did not get the loader"); | |
88cb7938 | 1156 | } |
1157 | ||
814ad4bf | 1158 | //_________________________________________________________________________________________ |
9e5d2067 | 1159 | void AliEMCALDigitizer::WriteDigits() |
a2f8e711 | 1160 | { // Makes TreeD in the output file. |
814ad4bf | 1161 | // Check if branch already exists: |
1162 | // if yes, exit without writing: ROOT TTree does not support overwriting/updating of | |
1163 | // already existing branches. | |
1164 | // else creates branch with Digits, named "EMCAL", title "...", | |
1165 | // and branch "AliEMCALDigitizer", with the same title to keep all the parameters | |
1166 | // and names of files, from which digits are made. | |
96d5ea0d | 1167 | |
33c3c91a | 1168 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1169 | |
1170 | if(emcalLoader){ | |
1171 | const TClonesArray * digits = emcalLoader->Digits() ; | |
1172 | TTree * treeD = emcalLoader->TreeD(); | |
1173 | if ( !treeD ) { | |
1174 | emcalLoader->MakeDigitsContainer(); | |
1175 | treeD = emcalLoader->TreeD(); | |
1176 | } | |
1177 | ||
1178 | // -- create Digits branch | |
1179 | Int_t bufferSize = 32000 ; | |
1180 | TBranch * digitsBranch = 0; | |
1181 | if ((digitsBranch = treeD->GetBranch("EMCAL"))) { | |
1182 | digitsBranch->SetAddress(&digits); | |
1183 | AliWarning("Digits Branch already exists. Not all digits will be visible"); | |
1184 | } | |
1185 | else | |
1186 | treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize); | |
1187 | //digitsBranch->SetTitle(fEventFolderName); | |
1188 | ||
1189 | // treeD->Fill() ; | |
1190 | /* | |
1191 | emcalLoader->WriteDigits("OVERWRITE"); | |
1192 | emcalLoader->WriteDigitizer("OVERWRITE"); | |
1193 | ||
1194 | Unload() ; | |
1195 | */ | |
1196 | ||
1197 | }// loader exists | |
1198 | else AliFatal("Loader not available"); | |
916f1e76 | 1199 | } |
88cb7938 | 1200 | |
916f1e76 | 1201 | //__________________________________________________________________ |
1202 | void AliEMCALDigitizer::WriteDigits(TClonesArray* digits, const char* branchName) | |
a2f8e711 | 1203 | { // overloaded method |
61d80ce0 | 1204 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
1205 | if(emcalLoader){ | |
96d5ea0d | 1206 | |
1207 | TTree* treeD = emcalLoader->TreeD(); | |
1208 | if (!treeD) | |
61d80ce0 | 1209 | { |
1210 | emcalLoader->MakeDigitsContainer(); | |
1211 | treeD = emcalLoader->TreeD(); | |
1212 | } | |
96d5ea0d | 1213 | |
1214 | // -- create Digits branch | |
1215 | Int_t bufferSize = 32000; | |
1216 | ||
1217 | if (TBranch* triggerBranch = treeD->GetBranch(branchName)) | |
61d80ce0 | 1218 | { |
1219 | triggerBranch->SetAddress(&digits); | |
1220 | } | |
96d5ea0d | 1221 | else |
61d80ce0 | 1222 | { |
1223 | treeD->Branch(branchName,"TClonesArray",&digits,bufferSize); | |
1224 | } | |
96d5ea0d | 1225 | |
1226 | // treeD->Fill(); | |
1227 | }// loader exists | |
1228 | else AliFatal("Loader not available"); | |
814ad4bf | 1229 | } |
61e0abb5 | 1230 | |
6995e8b7 | 1231 | //__________________________________________________________________ |
1232 | Bool_t AliEMCALDigitizer::IsDead(AliEMCALDigit *digit) | |
1233 | { | |
1234 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
1235 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); | |
1236 | if (!emcalLoader) AliFatal("Did not get the Loader"); | |
1237 | ||
1238 | AliCaloCalibPedestal *caloPed = emcalLoader->PedestalData(); | |
1239 | if (!caloPed) { | |
1240 | AliWarning("Could not access pedestal data! No dead channel removal applied"); | |
1241 | return kFALSE; | |
1242 | } | |
1243 | ||
1244 | // Load Geometry | |
1245 | const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance(); | |
1246 | if (!geom) AliFatal("Did not get geometry from EMCALLoader"); | |
1247 | ||
1248 | Int_t absId = digit->GetId(); | |
1249 | Int_t iSupMod = -1; | |
1250 | Int_t nModule = -1; | |
1251 | Int_t nIphi = -1; | |
1252 | Int_t nIeta = -1; | |
1253 | Int_t iphi = -1; | |
1254 | Int_t ieta = -1; | |
1255 | ||
1256 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
1257 | ||
1258 | if (!bCell) Error("IsDead","Wrong cell id number : absId %i ", absId) ; | |
1259 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
1260 | ||
1261 | Int_t channelStatus = (Int_t)(caloPed->GetDeadMap(iSupMod))->GetBinContent(ieta,iphi); | |
1262 | ||
1263 | if (channelStatus == AliCaloCalibPedestal::kDead) | |
1264 | return kTRUE; | |
1265 | else | |
1266 | return kFALSE; | |
1267 | } | |
1268 | ||
1269 | ||
1270 | //__________________________________________________________________ | |
1271 | Bool_t AliEMCALDigitizer::IsDead(Int_t absId) | |
1272 | { | |
1273 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
1274 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); | |
1275 | if (!emcalLoader) AliFatal("Did not get the Loader"); | |
1276 | ||
1277 | AliCaloCalibPedestal *caloPed = emcalLoader->PedestalData(); | |
1278 | if (!caloPed) { | |
1279 | AliWarning("Could not access pedestal data! No dead channel removal applied"); | |
1280 | return kFALSE; | |
1281 | } | |
1282 | ||
1283 | // Load Geometry | |
1284 | const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance(); | |
1285 | if (!geom) AliFatal("Did not get geometry from EMCALLoader"); | |
1286 | ||
1287 | Int_t iSupMod = -1; | |
1288 | Int_t nModule = -1; | |
1289 | Int_t nIphi = -1; | |
1290 | Int_t nIeta = -1; | |
1291 | Int_t iphi = -1; | |
1292 | Int_t ieta = -1; | |
1293 | ||
1294 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
1295 | ||
1296 | if (!bCell) Error("IsDead","Wrong cell id number : absId %i ", absId) ; | |
1297 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
1298 | ||
1299 | Int_t channelStatus = (Int_t)(caloPed->GetDeadMap(iSupMod))->GetBinContent(ieta,iphi); | |
1300 | ||
1301 | if (channelStatus == AliCaloCalibPedestal::kDead) | |
1302 | return kTRUE; | |
1303 | else | |
1304 | return kFALSE; | |
1305 | } | |
1306 |