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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 decodes the stream of ALTRO samples to extract | |
19 | // the PHOS "digits" of current event. | |
20 | // | |
21 | // Typical use case: | |
22 | // AliRawReader* rf = new AliRawReaderDate("2006run2211.raw"); | |
23 | // AliPHOSRawDecoder dc(rf); | |
24 | // while (rf->NextEvent()) { | |
25 | // dc.SubtractPedestals(kTRUE); | |
26 | // while ( dc.NextDigit() ) { | |
27 | // Int_t module = dc.GetModule(); | |
28 | // Int_t column = dc.GetColumn(); | |
29 | // Int_t row = dc.GetRow(); | |
30 | // Double_t amplitude = dc.GetEnergy(); | |
31 | // Double_t time = dc.GetTime(); | |
32 | // Bool_t IsLowGain = dc.IsLowGain(); | |
33 | // .......... | |
34 | // } | |
35 | // } | |
36 | ||
37 | // Author: Boris Polichtchouk | |
38 | ||
39 | // --- ROOT system --- | |
40 | #include "TArrayI.h" | |
41 | #include "TMath.h" | |
42 | ||
43 | // --- AliRoot header files --- | |
44 | #include "AliPHOSRawDecoder.h" | |
45 | #include "AliRawReader.h" | |
46 | #include "AliPHOSCalibData.h" | |
47 | #include "AliLog.h" | |
48 | ||
49 | ClassImp(AliPHOSRawDecoder) | |
50 | ||
51 | //----------------------------------------------------------------------------- | |
52 | AliPHOSRawDecoder::AliPHOSRawDecoder(): | |
53 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fQuality(0.),fPedestalRMS(0.), | |
54 | fAmpOffset(0),fModule(-1),fColumn(-1),fRow(-1),fNewModule(-1),fNewColumn(-1),fNewRow(-1),fNewAmp(0),fNewTime(0), | |
55 | fLowGainFlag(kFALSE),fNewLowGainFlag(kFALSE),fOverflow(kFALSE),fSamples(0),fTimes(0),fCalibData(0) | |
56 | { | |
57 | //Default constructor. | |
58 | } | |
59 | ||
60 | //----------------------------------------------------------------------------- | |
61 | AliPHOSRawDecoder::AliPHOSRawDecoder(AliRawReader* rawReader, AliAltroMapping **mapping): | |
62 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fQuality(0.),fPedestalRMS(0.), | |
63 | fAmpOffset(0),fModule(-1),fColumn(-1),fRow(-1),fNewModule(-1),fNewColumn(-1),fNewRow(-1),fNewAmp(0),fNewTime(0), | |
64 | fLowGainFlag(kFALSE),fNewLowGainFlag(kFALSE),fOverflow(kFALSE),fSamples(0),fTimes(0),fCalibData(0) | |
65 | { | |
66 | //Construct a decoder object. | |
67 | //Is is user responsibility to provide next raw event | |
68 | //using AliRawReader::NextEvent(). | |
69 | ||
70 | fRawReader = rawReader; | |
71 | fCaloStream = new AliCaloRawStream(rawReader,"PHOS",mapping); | |
72 | fSamples = new TArrayI(100); | |
73 | fTimes = new TArrayI(100); | |
74 | } | |
75 | ||
76 | //----------------------------------------------------------------------------- | |
77 | AliPHOSRawDecoder::~AliPHOSRawDecoder() | |
78 | { | |
79 | //Destructor. | |
80 | ||
81 | if(fCaloStream){ delete fCaloStream; fCaloStream=0;} | |
82 | if(fSamples){ delete fSamples; fSamples=0 ;} | |
83 | if(fTimes){ delete fTimes; fTimes=0 ;} | |
84 | } | |
85 | ||
86 | //----------------------------------------------------------------------------- | |
87 | AliPHOSRawDecoder::AliPHOSRawDecoder(const AliPHOSRawDecoder &phosDecoder ): | |
88 | fRawReader(phosDecoder.fRawReader),fCaloStream(phosDecoder.fCaloStream), | |
89 | fPedSubtract(phosDecoder.fPedSubtract), | |
90 | fEnergy(phosDecoder.fEnergy),fTime(phosDecoder.fTime),fQuality(phosDecoder.fQuality),fPedestalRMS(phosDecoder.fPedestalRMS), | |
91 | fAmpOffset(phosDecoder.fAmpOffset),fModule(phosDecoder.fModule),fColumn(phosDecoder.fColumn), | |
92 | fRow(phosDecoder.fRow),fNewModule(phosDecoder.fNewModule),fNewColumn(phosDecoder.fNewColumn), | |
93 | fNewRow(phosDecoder.fNewRow),fNewAmp(phosDecoder.fNewAmp),fNewTime(phosDecoder.fNewTime), | |
94 | fLowGainFlag(phosDecoder.fLowGainFlag),fNewLowGainFlag(phosDecoder.fNewLowGainFlag), | |
95 | fOverflow(phosDecoder.fOverflow),fSamples(phosDecoder.fSamples), | |
96 | fTimes(phosDecoder.fTimes),fCalibData(phosDecoder.fCalibData) | |
97 | { | |
98 | //Copy constructor. | |
99 | } | |
100 | ||
101 | //----------------------------------------------------------------------------- | |
102 | AliPHOSRawDecoder& AliPHOSRawDecoder::operator = (const AliPHOSRawDecoder &phosDecode) | |
103 | { | |
104 | //Assignment operator. | |
105 | ||
106 | if(this != &phosDecode) { | |
107 | fRawReader = phosDecode.fRawReader; | |
108 | ||
109 | if(fCaloStream) delete fCaloStream; | |
110 | fCaloStream = phosDecode.fCaloStream; | |
111 | ||
112 | fEnergy = phosDecode.fEnergy; | |
113 | fTime = phosDecode.fTime; | |
114 | fQuality = phosDecode.fQuality ; | |
115 | fPedestalRMS = phosDecode.fPedestalRMS ; | |
116 | fAmpOffset = phosDecode.fAmpOffset ; | |
117 | fModule = phosDecode.fModule; | |
118 | fColumn = phosDecode.fColumn; | |
119 | fRow = phosDecode.fRow; | |
120 | fNewModule = phosDecode.fNewModule; | |
121 | fNewColumn = phosDecode.fNewColumn; | |
122 | fNewRow = phosDecode.fNewRow; | |
123 | fNewAmp = phosDecode.fNewAmp ; | |
124 | fNewTime= phosDecode.fNewTime ; | |
125 | fLowGainFlag = phosDecode.fLowGainFlag; | |
126 | fNewLowGainFlag = phosDecode.fNewLowGainFlag; | |
127 | fOverflow = phosDecode.fOverflow ; | |
128 | ||
129 | if(fSamples) delete fSamples; | |
130 | fSamples = phosDecode.fSamples; | |
131 | ||
132 | if(fTimes) delete fTimes; | |
133 | fTimes = phosDecode.fTimes; | |
134 | fCalibData = phosDecode.fCalibData; | |
135 | } | |
136 | ||
137 | return *this; | |
138 | } | |
139 | ||
140 | //----------------------------------------------------------------------------- | |
141 | ||
142 | Bool_t AliPHOSRawDecoder::NextDigit() | |
143 | { | |
144 | //Extract an energy deposited in the crystal, | |
145 | //crystal' position (module,column,row), | |
146 | //time and gain (high or low). | |
147 | ||
148 | AliCaloRawStream* in = fCaloStream; | |
149 | ||
150 | Int_t iBin = 0; | |
151 | Int_t mxSmps = fSamples->GetSize(); | |
152 | Int_t tLength = 0; | |
153 | fEnergy = -111; | |
154 | Float_t pedMean = 0; | |
155 | Float_t pedRMS = 0; | |
156 | Int_t nPed = 0; | |
157 | Float_t baseLine = 1.0; | |
158 | const Int_t kPreSamples = 10; | |
159 | ||
160 | fSamples->Reset(); | |
161 | while ( in->Next() ) { | |
162 | ||
163 | if(!tLength) { | |
164 | tLength = in->GetTimeLength(); | |
165 | if(tLength>mxSmps) { | |
166 | fSamples->Set(tLength); | |
167 | } | |
168 | } | |
169 | ||
170 | // Fit the full sample | |
171 | if(in->IsNewHWAddress() && iBin>0) { | |
172 | ||
173 | iBin=0; | |
174 | //First remember new sample | |
175 | fNewLowGainFlag = in->IsLowGain(); | |
176 | fNewModule = in->GetModule()+1; | |
177 | fNewRow = in->GetRow() +1; | |
178 | fNewColumn = in->GetColumn()+1; | |
179 | fNewAmp = in->GetSignal() ; | |
180 | fNewTime=in->GetTime() ; | |
181 | ||
182 | // Temporarily we take the energy as a maximum amplitude | |
183 | // and the pedestal from the 0th point (30 Aug 2006). | |
184 | // Time is not evaluated for the moment (12.01.2007). | |
185 | // Take is as a first time bin multiplied by the sample tick time | |
186 | ||
187 | if(fPedSubtract) { | |
188 | if (nPed > 0){ | |
189 | fPedestalRMS=(pedRMS-pedMean*pedMean/nPed)/nPed ; | |
190 | if(fPedestalRMS > 0.) | |
191 | fPedestalRMS = TMath::Sqrt(fPedestalRMS) ; | |
192 | fEnergy -= (Double_t)(pedMean/nPed); // pedestal subtraction | |
193 | } | |
194 | else | |
195 | return kFALSE; | |
196 | } | |
197 | else{ | |
198 | //take pedestals from DB | |
199 | Double_t pedestal = (Double_t) fAmpOffset ; | |
200 | if(fCalibData){ | |
201 | Float_t truePed = fCalibData->GetADCpedestalEmc(fModule, fColumn, fRow) ; | |
202 | Int_t altroSettings = fCalibData->GetAltroOffsetEmc(fModule, fColumn, fRow) ; | |
203 | pedestal += truePed - altroSettings ; | |
204 | } | |
205 | else{ | |
206 | // printf("AliPHOSRawDecoder::NextDigit() Can not read data from OCDB \n") ; | |
207 | } | |
208 | fEnergy-=pedestal ; | |
209 | } | |
210 | if (fEnergy < baseLine) fEnergy = 0; | |
211 | ||
212 | return kTRUE; | |
213 | } | |
214 | ||
215 | fLowGainFlag = in->IsLowGain(); | |
216 | // fTime = in->GetTime(); | |
217 | fTime = 1; | |
218 | fModule = in->GetModule()+1; | |
219 | fRow = in->GetRow() +1; | |
220 | fColumn = in->GetColumn()+1; | |
221 | ||
222 | if(fLowGainFlag==fNewLowGainFlag && fModule==fNewModule && | |
223 | fRow==fNewRow && fColumn==fNewColumn ){ | |
224 | if(fNewAmp>fEnergy) fEnergy = (Double_t)fNewAmp ; | |
225 | fNewModule=-1 ; | |
226 | } | |
227 | ||
228 | //Calculate pedestal if necessary | |
229 | if(fPedSubtract && in->GetTime() < kPreSamples) { | |
230 | pedMean += in->GetSignal(); | |
231 | pedRMS+=in->GetSignal()*in->GetSignal() ; | |
232 | nPed++; | |
233 | } | |
234 | if((Double_t)in->GetSignal() > fEnergy) fEnergy = (Double_t)in->GetSignal(); | |
235 | iBin++ ; | |
236 | ||
237 | } // in.Next() | |
238 | ||
239 | return kFALSE; | |
240 | } |