change the setiing of pedestal subtraction
[u/mrichter/AliRoot.git] / TPC / AliTPCRawStreamFast.cxx
CommitLineData
a0918fa7 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 "AliTPCRawStreamFast.h"
32#include "AliRawReader.h"
33#include "AliLog.h"
34#include "AliTPCAltroMapping.h"
35
36ClassImp(AliTPCRawStreamFast)
37
38//_____________________________________________________________________________
39AliTPCRawStreamFast::AliTPCRawStreamFast(AliRawReader* rawReader) :
40 AliAltroRawStreamFast(rawReader),
41 fSector(-1),
42 fPrevSector(-1),
43 fRow(-1),
44 fPrevRow(-1),
45 fPad(-1),
46 fPrevPad(-1),
47 fIsMapOwner(kTRUE)
48{
49 // create an object to read TPC raw digits
50
51 SelectRawData("TPC");
52
53 TString path = gSystem->Getenv("ALICE_ROOT");
54 path += "/TPC/mapping/Patch";
55 TString path2;
56 for(Int_t i = 0; i < 6; i++) {
57 path2 = path;
58 path2 += i;
59 path2 += ".data";
60 fMapping[i] = new AliTPCAltroMapping(path2.Data());
61 }
62
63 //fNoAltroMapping = kFALSE;
64}
65/*
66//_____________________________________________________________________________
67AliTPCRawStreamFast::AliTPCRawStreamFast(const AliTPCRawStreamFast& stream) :
68 AliAltroRawStreamFast(stream),
69 fSector(stream.fSector),
70 fPrevSector(stream.fPrevSector),
71 fRow(stream.fRow),
72 fPrevRow(stream.fPrevRow),
73 fPad(stream.fPad),
74 fPrevPad(stream.fPrevPad),
75 fIsMapOwner(kFALSE)
76{
77 for(Int_t i = 0; i < 6; i++) fMapping[i] = stream.fMapping[i];
78}
79
80//_____________________________________________________________________________
81AliTPCRawStreamFast& AliTPCRawStreamFast::operator = (const AliTPCRawStreamFast& stream)
82{
83 if(&stream == this) return *this;
84
85 ((AliAltroRawStreamFast *)this)->operator=(stream);
86
87 fSector = stream.fSector;
88 fPrevSector = stream.fPrevSector;
89 fRow = stream.fRow;
90 fPrevRow = stream.fPrevRow;
91 fPad = stream.fPad;
92 fPrevPad = stream.fPrevPad;
93 fIsMapOwner = kFALSE;
94
95 for(Int_t i = 0; i < 6; i++) fMapping[i] = stream.fMapping[i];
96
97 return *this;
98}
99*/
100//_____________________________________________________________________________
101AliTPCRawStreamFast::~AliTPCRawStreamFast()
102{
103// destructor
104
105 if (fIsMapOwner)
106 for(Int_t i = 0; i < 6; i++) delete fMapping[i];
107}
108
109//_____________________________________________________________________________
110void AliTPCRawStreamFast::Reset()
111{
112 // reset tpc raw stream params
113 AliAltroRawStreamFast::Reset();
114 fSector = fPrevSector = fRow = fPrevRow = fPad = fPrevPad = -1;
115}
116
117//_____________________________________________________________________________
118Bool_t AliTPCRawStreamFast::NextChannel()
119{
120 // Read next TPC Channel
121 // Apply the TPC altro mapping to get
122 // the sector,pad-row and pad indeces
123 fPrevSector = fSector;
124 fPrevRow = fRow;
125 fPrevPad = fPad;
126 if (AliAltroRawStreamFast::NextChannel()) {
127 // if (IsNewHWAddress())
128 if ( GetHWAddress() > -1 )
129 ApplyAltroMapping();
130 return kTRUE;
131 }
132 else
133 return kFALSE;
134}
135
136//_____________________________________________________________________________
137void AliTPCRawStreamFast::ApplyAltroMapping()
138{
139 // Take the DDL index, load
140 // the corresponding altro mapping
141 // object and fill the sector,row and pad indeces
142 Int_t ddlNumber = GetDDLNumber();
143 Int_t patchIndex;
144 if (ddlNumber < 72) {
145 fSector = ddlNumber / 2;
146 patchIndex = ddlNumber % 2;
147 }
148 else {
149 fSector = (ddlNumber - 72) / 4 + 36;
150 patchIndex = (ddlNumber - 72) % 4 + 2;
151 }
152
153 Short_t hwAddress = GetHWAddress();
154 fRow = fMapping[patchIndex]->GetPadRow(hwAddress);
155 fPad = fMapping[patchIndex]->GetPad(hwAddress);
156
157// if ((fRow < 0) || (fPad < 0))
158// AddMappingErrorLog(Form("hw=%d",hwAddress));
159}