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a29c28b6 | 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 | ||
7bc140a5 | 16 | /* $Id$ */ |
17 | ||
a29c28b6 | 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"); | |
b1a8a9cb | 23 | // AliPHOSRawDecoder dc(rf); |
a29c28b6 | 24 | // while (rf->NextEvent()) { |
a29c28b6 | 25 | // dc.SetOldRCUFormat(kTRUE); |
26 | // dc.SubtractPedestals(kTRUE); | |
27 | // while ( dc.NextDigit() ) { | |
28 | // Int_t module = dc.GetModule(); | |
29 | // Int_t column = dc.GetColumn(); | |
30 | // Int_t row = dc.GetRow(); | |
31 | // Double_t amplitude = dc.GetEnergy(); | |
32 | // Double_t time = dc.GetTime(); | |
33 | // Bool_t IsLowGain = dc.IsLowGain(); | |
34 | // .......... | |
35 | // } | |
36 | // } | |
37 | ||
38 | // Author: Boris Polichtchouk | |
39 | ||
40 | // --- ROOT system --- | |
b1a8a9cb | 41 | #include "TArrayI.h" |
a29c28b6 | 42 | |
43 | // --- AliRoot header files --- | |
44 | #include "AliPHOSRawDecoder.h" | |
45 | #include "AliPHOSPulseGenerator.h" | |
46 | ||
47 | ClassImp(AliPHOSRawDecoder) | |
48 | ||
49 | //----------------------------------------------------------------------------- | |
50 | AliPHOSRawDecoder::AliPHOSRawDecoder(): | |
b1a8a9cb | 51 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fModule(-1),fColumn(-1),fRow(-1),fSamples(0),fPulseGenerator(0) |
a29c28b6 | 52 | { |
53 | //Default constructor. | |
54 | } | |
55 | ||
56 | //----------------------------------------------------------------------------- | |
57 | AliPHOSRawDecoder::AliPHOSRawDecoder(AliRawReader* rawReader): | |
b1a8a9cb | 58 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fModule(-1),fColumn(-1),fRow(-1),fSamples(0),fPulseGenerator(0) |
a29c28b6 | 59 | { |
60 | //Construct a decoder object. | |
61 | //Is is user responsibility to provide next raw event | |
62 | //using AliRawReader::NextEvent(). | |
63 | ||
64 | fRawReader = rawReader; | |
65 | fCaloStream = new AliCaloRawStream(rawReader,"PHOS"); | |
66 | fCaloStream->SetOldRCUFormat(kFALSE); | |
b1a8a9cb | 67 | fSamples = new TArrayI(100); |
68 | fPulseGenerator = new AliPHOSPulseGenerator(); | |
a29c28b6 | 69 | } |
70 | ||
71 | //----------------------------------------------------------------------------- | |
72 | AliPHOSRawDecoder::~AliPHOSRawDecoder() | |
73 | { | |
74 | //Destructor. | |
75 | ||
76 | if(fCaloStream) delete fCaloStream; | |
b1a8a9cb | 77 | if(fSamples) delete fSamples; |
78 | if(fPulseGenerator) delete fPulseGenerator; | |
a29c28b6 | 79 | } |
80 | ||
81 | //----------------------------------------------------------------------------- | |
82 | AliPHOSRawDecoder::AliPHOSRawDecoder(const AliPHOSRawDecoder &phosDecoder ): | |
83 | fRawReader(phosDecoder.fRawReader),fCaloStream(phosDecoder.fCaloStream), | |
84 | fPedSubtract(phosDecoder.fPedSubtract), | |
85 | fEnergy(phosDecoder.fEnergy),fTime(phosDecoder.fTime), | |
86 | fModule(phosDecoder.fModule),fColumn(phosDecoder.fColumn), | |
b1a8a9cb | 87 | fRow(phosDecoder.fRow),fSamples(phosDecoder.fSamples), |
88 | fPulseGenerator(phosDecoder.fPulseGenerator) | |
a29c28b6 | 89 | { |
90 | //Copy constructor. | |
91 | } | |
92 | ||
93 | //----------------------------------------------------------------------------- | |
94 | AliPHOSRawDecoder& AliPHOSRawDecoder::operator = (const AliPHOSRawDecoder &phosDecode) | |
95 | { | |
7bc140a5 | 96 | //Assignment operator. |
97 | ||
a29c28b6 | 98 | if(this != &phosDecode) { |
99 | fRawReader = phosDecode.fRawReader; | |
100 | ||
101 | if(fCaloStream) delete fCaloStream; | |
102 | fCaloStream = phosDecode.fCaloStream; | |
103 | ||
104 | fEnergy = phosDecode.fEnergy; | |
105 | fTime = phosDecode.fTime; | |
106 | fModule = phosDecode.fModule; | |
107 | fColumn = phosDecode.fColumn; | |
108 | fRow = phosDecode.fRow; | |
b1a8a9cb | 109 | |
110 | if(fSamples) delete fSamples; | |
111 | fSamples = phosDecode.fSamples; | |
112 | ||
113 | if(fPulseGenerator) delete fPulseGenerator; | |
114 | fPulseGenerator = phosDecode.fPulseGenerator; | |
a29c28b6 | 115 | } |
116 | ||
117 | return *this; | |
118 | } | |
119 | ||
120 | //----------------------------------------------------------------------------- | |
121 | ||
122 | Bool_t AliPHOSRawDecoder::NextDigit() | |
123 | { | |
124 | //Extract an energy deposited in the crystal, | |
125 | //crystal' position (module,column,row), | |
126 | //time and gain (high or low). | |
b1a8a9cb | 127 | |
a29c28b6 | 128 | AliCaloRawStream* in = fCaloStream; |
b1a8a9cb | 129 | |
a29c28b6 | 130 | Bool_t lowGainFlag = kFALSE ; |
131 | Int_t iBin = 0; | |
b1a8a9cb | 132 | Int_t mxSmps = fSamples->GetSize(); |
133 | Int_t tLength = -1; | |
134 | fEnergy = -111; | |
135 | ||
136 | fSamples->Reset(); | |
a29c28b6 | 137 | |
138 | while ( in->Next() ) { | |
139 | ||
b1a8a9cb | 140 | tLength = in->GetTimeLength(); |
141 | if(tLength>mxSmps) { | |
142 | fSamples->Set(tLength); | |
143 | mxSmps = fSamples->GetSize(); | |
144 | } | |
145 | ||
a29c28b6 | 146 | lowGainFlag = in->IsLowGain(); |
b1a8a9cb | 147 | |
148 | // Fill array with samples | |
149 | fSamples->AddAt(in->GetSignal(),tLength-iBin-1); | |
150 | if((Double_t)in->GetSignal() > fEnergy) fEnergy = (Double_t)in->GetSignal(); | |
a29c28b6 | 151 | iBin++; |
152 | ||
153 | // Fit the full sample | |
b1a8a9cb | 154 | if(iBin==tLength) { |
a29c28b6 | 155 | iBin=0; |
156 | ||
b1a8a9cb | 157 | // Temporarily we take the energy as a maximum amplitude |
158 | // and the pedestal from the 0th point (30 Aug 2006). | |
a29c28b6 | 159 | // Time is not evaluated for the moment (12.01.2007). |
160 | // Take is as a first time bin multiplied by the sample tick time | |
161 | ||
b1a8a9cb | 162 | fTime = fPulseGenerator->GetRawFormatTimeTrigger() * in->GetTime(); |
a29c28b6 | 163 | |
164 | fModule = in->GetModule()+1; | |
165 | fRow = in->GetRow() +1; | |
166 | fColumn = in->GetColumn()+1; | |
167 | ||
a29c28b6 | 168 | if(fPedSubtract) |
b1a8a9cb | 169 | fEnergy -= (Double_t)fSamples->At(0); // "pedestal subtraction" |
170 | ||
a29c28b6 | 171 | if(lowGainFlag) |
b1a8a9cb | 172 | fEnergy *= fPulseGenerator->GetRawFormatHighLowGainFactor(); // *16 |
a29c28b6 | 173 | |
174 | return kTRUE; | |
175 | } | |
176 | ||
177 | } // in.Next() | |
b1a8a9cb | 178 | |
179 | ||
a29c28b6 | 180 | return kFALSE; |
181 | } |