Formatting changes.
[u/mrichter/AliRoot.git] / TPC / AliTPCRawStream.cxx
CommitLineData
b27ca38e 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///////////////////////////////////////////////////////////////////////////////
19///
20/// This class provides access to TPC digits in raw data.
21///
22/// It loops over all TPC digits in the raw data given by the AliRawReader.
23/// The Next method goes to the next digit. If there are no digits left
24/// it returns kFALSE.
25/// Several getters provide information about the current digit.
26///
27///////////////////////////////////////////////////////////////////////////////
28
29#include <TSystem.h>
30
31#include "AliTPCRawStream.h"
32#include "AliRawReader.h"
33#include "AliLog.h"
34#include "AliTPCAltroMapping.h"
35
36ClassImp(AliTPCRawStream)
37
38//_____________________________________________________________________________
39AliTPCRawStream::AliTPCRawStream(AliRawReader* rawReader) :
041f6df4 40 AliAltroRawStream(rawReader),
41 fSector(-1),
42 fPrevSector(-1),
43 fRow(-1),
44 fPrevRow(-1),
45 fPad(-1),
46 fPrevPad(-1)
b27ca38e 47{
48 // create an object to read TPC raw digits
49
362c9d61 50 SelectRawData("TPC");
b27ca38e 51
52 TString path = gSystem->Getenv("ALICE_ROOT");
53 path += "/TPC/mapping/Patch";
54 TString path2;
55 for(Int_t i = 0; i < 6; i++) {
56 path2 = path;
57 path2 += i;
58 path2 += ".data";
59 fMapping[i] = new AliTPCAltroMapping(path2.Data());
60 }
61
62 fNoAltroMapping = kFALSE;
63}
64
65//_____________________________________________________________________________
66AliTPCRawStream::AliTPCRawStream(const AliTPCRawStream& stream) :
041f6df4 67 AliAltroRawStream(stream),
68 fSector(-1),
69 fPrevSector(-1),
70 fRow(-1),
71 fPrevRow(-1),
72 fPad(-1),
73 fPrevPad(-1)
b27ca38e 74{
75 Fatal("AliTPCRawStream", "copy constructor not implemented");
76}
77
78//_____________________________________________________________________________
79AliTPCRawStream& AliTPCRawStream::operator = (const AliTPCRawStream&
80 /* stream */)
81{
82 Fatal("operator =", "assignment operator not implemented");
83 return *this;
84}
85
86//_____________________________________________________________________________
87AliTPCRawStream::~AliTPCRawStream()
88{
89// destructor
90
91 for(Int_t i = 0; i < 6; i++) delete fMapping[i];
92}
93
94//_____________________________________________________________________________
95void AliTPCRawStream::Reset()
96{
97 // reset tpc raw stream params
98 AliAltroRawStream::Reset();
041f6df4 99 fSector = fPrevSector = fRow = fPrevRow = fPad = fPrevPad = -1;
100}
101
102//_____________________________________________________________________________
103Bool_t AliTPCRawStream::Next()
104{
105 // Read next TPC signal
106 // Apply the TPC altro mapping to get
107 // the sector,pad-row and pad indeces
108 fPrevSector = fSector;
109 fPrevRow = fRow;
110 fPrevPad = fPad;
111 if (AliAltroRawStream::Next()) {
112 if (IsNewHWAddress())
113 ApplyAltroMapping();
114 return kTRUE;
115 }
116 else
117 return kFALSE;
b27ca38e 118}
119
120//_____________________________________________________________________________
121void AliTPCRawStream::ApplyAltroMapping()
122{
041f6df4 123 // Take the DDL index, load
b27ca38e 124 // the corresponding altro mapping
041f6df4 125 // object and fill the sector,row and pad indeces
126 Int_t ddlNumber = GetDDLNumber();
b27ca38e 127 Int_t patchIndex;
128 if (ddlNumber < 72) {
129 fSector = ddlNumber / 2;
130 patchIndex = ddlNumber % 2;
131 }
132 else {
133 fSector = (ddlNumber - 72) / 4 + 36;
134 patchIndex = (ddlNumber - 72) % 4 + 2;
135 }
136
041f6df4 137 Short_t hwAddress = GetHWAddress();
138 fRow = fMapping[patchIndex]->GetPadRow(hwAddress);
139 fPad = fMapping[patchIndex]->GetPad(hwAddress);
b27ca38e 140
141}