Fixes for #86059: Install data when ALICE_ROOT does not point to source (Christian)
[u/mrichter/AliRoot.git] / MUON / AliMUONRegionalTriggerBoard.cxx
CommitLineData
809874e0 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
3d1463c8 18//-----------------------------------------------------------------------------
c4ee792d 19/// \class AliMUONRegionalTriggerBoard
20/// Dimuon regional trigger implementation:
21/// - entry are local board responses
22/// - output is 12-bit word
23/// - algorithm is similar to the global one
24///
25/// \author Rachid Guernane (LPCCFd)
c05673c9 26/// Corrected by Christian Finck (Subatech)
3d1463c8 27//-----------------------------------------------------------------------------
809874e0 28
29#include "AliMUONRegionalTriggerBoard.h"
30
41922e78 31#include "AliLog.h"
32
809874e0 33#include "TBits.h"
34
35#include <Riostream.h>
36
71a2d3aa 37/// \cond CLASSIMP
809874e0 38ClassImp(AliMUONRegionalTriggerBoard)
71a2d3aa 39/// \endcond
809874e0 40
41//___________________________________________
42AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard()
c05673c9 43 : AliMUONTriggerBoard(),
44 fMask(0x0)
809874e0 45{
71a2d3aa 46/// Default constructor
809874e0 47 for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0;
48}
49
50//___________________________________________
c05673c9 51AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard(const char *name, Int_t a)
52 : AliMUONTriggerBoard(name, a),
53 fMask(0x0)
809874e0 54{
71a2d3aa 55/// Standard constructor
809874e0 56 for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0;
57}
58
59//___________________________________________
71a2d3aa 60AliMUONRegionalTriggerBoard::~AliMUONRegionalTriggerBoard()
61{
62/// Destructor
63}
64
65//___________________________________________
809874e0 66void AliMUONRegionalTriggerBoard::Response()
67{
c05673c9 68/// response is given following the regional algorithm
254985cb 69// output from local trigger algorithm
70// [+, -] * [Hpt, Lpt]
71// transformed to [+, -, US, LS] * [Hpt, Lpt]
71a2d3aa 72
00d46f24 73 if ( IsNull() ) return; // Do nothing if all local responses are null
74
edd00c2d 75 Int_t t[16];
809874e0 76
c05673c9 77 for (Int_t i = 0; i < 16; ++i)
78 {
79 if ((fMask >> i) & 0x1)
80 t[i] = fLocalResponse[i];
81 else
82 t[i] = 0;
83 }
84
809874e0 85 Int_t rank = 8;
86
c05673c9 87 for (Int_t i = 0; i < 4; ++i)
809874e0 88 {
89 Int_t ip = 0;
90
c05673c9 91 for (Int_t j = 0; j < rank; ++j)
809874e0 92 {
ad705f30 93 UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT",i);
254985cb 94
ad705f30 95 UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT",i); hthres <<= 4;
809874e0 96
ad705f30 97 t[ip] = lthres | hthres;
809874e0 98
99 ip++;
100 }
101
102 rank /= 2;
103 }
00d46f24 104
ad705f30 105 fResponse = t[0]; // 8-bit [H4:L4]
809874e0 106}
107
108//___________________________________________
a6e0ebfe 109UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, const char *thres, Int_t level)
809874e0 110{
c05673c9 111/// implementation of the regional algorithm
112/// similar to the global algorithm except for the
113/// input layer
71a2d3aa 114
254985cb 115/// level = 0 a ,b = local response = Hpt (+|-) | Lpt (+|-)
116/// level > 0 a ,b = reg response = Hpt (+|-|us|ls) | Lpt (+|-|us|ls)
117
ad705f30 118 TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j);
809874e0 119
120 TBits trg1(2), trg2(2), trg(2);
121
ad705f30 122 if (!strcmp(thres,"LPT"))
809874e0 123 {
254985cb 124
125 if (!level)
809874e0 126 {
127 trg1[0] = a[0]; trg1[1] = a[1];
128 trg2[0] = b[0]; trg2[1] = b[1];
129 }
130 else
131 {
132 trg1[0] = a[2]; trg1[1] = a[3];
133 trg2[0] = b[2]; trg2[1] = b[3];
134 }
135 }
ad705f30 136 else
809874e0 137 {
138 if (!level)
139 {
140 trg1[0] = a[2]; trg1[1] = a[3];
141 trg2[0] = b[2]; trg2[1] = b[3];
142 }
143 else
144 {
145 trg1[0] = a[6]; trg1[1] = a[7];
ad705f30 146 trg2[0] = b[6]; trg2[1] = b[7];
809874e0 147 }
148 }
149
150 TBits trgLS1(1), trgUS1(1), trgLS2(1), trgUS2(1), trgLS(1), trgUS(1);
151
152 if (!level)
153 {
154 trgLS1[0] = trgUS1[0] = trgLS2[0] = trgUS2[0] = 0;
155 }
156 else
157 {
ad705f30 158 if (!strcmp(thres,"LPT"))
809874e0 159 {
254985cb 160 //trgLS1[0] = a[1]; trgUS1[0] = a[0];
161 //trgLS2[0] = b[1]; trgUS2[0] = b[0];
162 trgLS1[0] = a[0]; trgUS1[0] = a[1];
163 trgLS2[0] = b[0]; trgUS2[0] = b[1];
809874e0 164 }
809874e0 165 else
166 {
254985cb 167 //trgLS1[0] = a[5]; trgUS1[0] = a[4];
168 //trgLS2[0] = b[5]; trgUS2[0] = b[4];
169 trgLS1[0] = a[4]; trgUS1[0] = a[5];
170 trgLS2[0] = b[4]; trgUS2[0] = b[5];
809874e0 171 }
172 }
173
174 trgLS[0] = ( trg1[0] & trg2[0] ) | ( trg1[1] & trg2[1] ) | trgLS1[0] | trgLS2[0];
175 trgUS[0] = ( trg1[0] & trg2[1] ) | ( trg1[1] & trg2[0] ) | trgUS1[0] | trgUS2[0];
176
177 trg[0] = trg1[0] | trg2[0];
178 trg[1] = trg1[1] | trg2[1];
179
180 TBits v(4);
181
254985cb 182 //v[0] = trgUS[0];
183 //v[1] = trgLS[0];
184 v[0] = trgLS[0];
185 v[1] = trgUS[0];
809874e0 186 v[2] = trg[0];
187 v[3] = trg[1];
809874e0 188 UShort_t rv = 0;
189 v.Get(&rv);
809874e0 190 return rv;
191}
edd00c2d 192
809874e0 193//___________________________________________
edd00c2d 194void AliMUONRegionalTriggerBoard::Scan(Option_t*) const
809874e0 195{
c05673c9 196/// scan local board entries
71a2d3aa 197
edd00c2d 198 for (Int_t i=0; i<16; i++)
a4435944 199 {
200 TBits b;
201 b.Set(6,&fLocalResponse[i]);
202
203 cout << "Entry " << i << " is " << b << endl;
204
205 }
206
809874e0 207}
41922e78 208//___________________________________________
c05673c9 209void AliMUONRegionalTriggerBoard::Mask(UShort_t mask)
41922e78 210{
c05673c9 211/// mask entry index
212
213 fMask = mask;
41922e78 214}
c05673c9 215
00d46f24 216//___________________________________________
217Bool_t AliMUONRegionalTriggerBoard::IsNull()
218{
219 /// Check if all local response are null
220 for (Int_t i=0; i<16; i++) {
221 if ( fLocalResponse[i] ) return kFALSE;
222 }
223 return kTRUE;
224}
c05673c9 225
226
00d46f24 227//___________________________________________
228void AliMUONRegionalTriggerBoard::Reset()
229{
230 /// Reset board
231
232 for (Int_t i=0; i<16; ++i) fLocalResponse[i] = 0;
233
234 fResponse = 0;
235
236}