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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"); | |
23 | // while (rf->NextEvent()) { | |
24 | // AliPHOSRawDecoder dc(rf); | |
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 --- | |
41 | #include "TH1.h" | |
42 | ||
43 | // --- AliRoot header files --- | |
44 | #include "AliPHOSRawDecoder.h" | |
45 | #include "AliPHOSPulseGenerator.h" | |
46 | ||
47 | ClassImp(AliPHOSRawDecoder) | |
48 | ||
49 | //----------------------------------------------------------------------------- | |
50 | AliPHOSRawDecoder::AliPHOSRawDecoder(): | |
51 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fModule(-1),fColumn(-1),fRow(-1) | |
52 | { | |
53 | //Default constructor. | |
54 | } | |
55 | ||
56 | //----------------------------------------------------------------------------- | |
57 | AliPHOSRawDecoder::AliPHOSRawDecoder(AliRawReader* rawReader): | |
58 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fModule(-1),fColumn(-1),fRow(-1) | |
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); | |
67 | } | |
68 | ||
69 | //----------------------------------------------------------------------------- | |
70 | AliPHOSRawDecoder::~AliPHOSRawDecoder() | |
71 | { | |
72 | //Destructor. | |
73 | ||
74 | if(fCaloStream) delete fCaloStream; | |
75 | } | |
76 | ||
77 | //----------------------------------------------------------------------------- | |
78 | AliPHOSRawDecoder::AliPHOSRawDecoder(const AliPHOSRawDecoder &phosDecoder ): | |
79 | fRawReader(phosDecoder.fRawReader),fCaloStream(phosDecoder.fCaloStream), | |
80 | fPedSubtract(phosDecoder.fPedSubtract), | |
81 | fEnergy(phosDecoder.fEnergy),fTime(phosDecoder.fTime), | |
82 | fModule(phosDecoder.fModule),fColumn(phosDecoder.fColumn), | |
83 | fRow(phosDecoder.fRow) | |
84 | { | |
85 | //Copy constructor. | |
86 | } | |
87 | ||
88 | //----------------------------------------------------------------------------- | |
89 | AliPHOSRawDecoder& AliPHOSRawDecoder::operator = (const AliPHOSRawDecoder &phosDecode) | |
90 | { | |
7bc140a5 | 91 | //Assignment operator. |
92 | ||
a29c28b6 | 93 | if(this != &phosDecode) { |
94 | fRawReader = phosDecode.fRawReader; | |
95 | ||
96 | if(fCaloStream) delete fCaloStream; | |
97 | fCaloStream = phosDecode.fCaloStream; | |
98 | ||
99 | fEnergy = phosDecode.fEnergy; | |
100 | fTime = phosDecode.fTime; | |
101 | fModule = phosDecode.fModule; | |
102 | fColumn = phosDecode.fColumn; | |
103 | fRow = phosDecode.fRow; | |
104 | } | |
105 | ||
106 | return *this; | |
107 | } | |
108 | ||
109 | //----------------------------------------------------------------------------- | |
110 | ||
111 | Bool_t AliPHOSRawDecoder::NextDigit() | |
112 | { | |
113 | //Extract an energy deposited in the crystal, | |
114 | //crystal' position (module,column,row), | |
115 | //time and gain (high or low). | |
116 | ||
117 | AliCaloRawStream* in = fCaloStream; | |
118 | ||
119 | // Create a shaper pulse object | |
120 | AliPHOSPulseGenerator pulse; | |
121 | ||
122 | Bool_t lowGainFlag = kFALSE ; | |
123 | Int_t iBin = 0; | |
124 | ||
125 | // Create histogram to store samples | |
126 | TH1F hSamples("hSamples","ALTRO samples",in->GetTimeLength(),0,in->GetTimeLength()); | |
127 | ||
128 | while ( in->Next() ) { | |
129 | ||
130 | lowGainFlag = in->IsLowGain(); | |
131 | // Fill histograms with samples | |
132 | hSamples.SetBinContent(in->GetTimeLength()-iBin-1,in->GetSignal()); | |
133 | iBin++; | |
134 | ||
135 | // Fit the full sample | |
136 | if(iBin==in->GetTimeLength()) { | |
137 | iBin=0; | |
138 | ||
139 | // Temporarily we do not fit the sample graph, but | |
140 | // take the energy from the graph maximum, and the pedestal | |
141 | // from the 0th point (30 Aug 2006). | |
142 | // Time is not evaluated for the moment (12.01.2007). | |
143 | // Take is as a first time bin multiplied by the sample tick time | |
144 | ||
145 | fTime = pulse.GetRawFormatTimeTrigger() * in->GetTime(); | |
146 | ||
147 | fModule = in->GetModule()+1; | |
148 | fRow = in->GetRow() +1; | |
149 | fColumn = in->GetColumn()+1; | |
150 | ||
151 | fEnergy = hSamples.GetMaximum(); // "digit amplitude" | |
152 | if(fPedSubtract) | |
153 | fEnergy-= hSamples.GetBinContent(0); // "pedestal subtraction" | |
154 | ||
155 | if(lowGainFlag) | |
156 | fEnergy *= pulse.GetRawFormatHighLowGainFactor(); // *16 | |
157 | ||
158 | return kTRUE; | |
159 | } | |
160 | ||
161 | } // in.Next() | |
162 | ||
163 | ||
164 | return kFALSE; | |
165 | } |