Bugs corrected in TF1 and some other functions cleared
[u/mrichter/AliRoot.git] / FMD / AliFMDRawStream.cxx
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4347b38f 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
e802be3e 18//____________________________________________________________________
4347b38f 19//
20// Buffer to read RAW ALTRO FMD format from a AliRawReader
21//
7684b53c 22// This class derives from AliAltroBuffer, but overloads the memer
23// function Next to do some extra processing. In particular, it tries
24// to autodetect the sample rate. If zero-suppression was used when
25// writing the raw data, then the automatic discovery will not work,
26// and the sample rate should be set explicitly.
4347b38f 27//
e802be3e 28#include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H
56b1929b 29#include <AliRawReader.h> // ALIRAWREADER_H
c2fc1258 30#include "AliFMDParameters.h"
1e8f773e 31#include <AliLog.h>
32#include <iomanip>
33#include <iostream>
4347b38f 34
35//____________________________________________________________________
925e6570 36ClassImp(AliFMDRawStream)
1a1fdef7 37#if 0
38 ; // This is here to keep Emacs for indenting the next line
39#endif
4347b38f 40
41//____________________________________________________________________
c2fc1258 42AliFMDRawStream::AliFMDRawStream(AliRawReader* reader)
43 : AliAltroRawStream(reader)
e802be3e 44{
c2fc1258 45 fNoAltroMapping = kFALSE;
1e8f773e 46}
47
48//_____________________________________________________________________________
49Bool_t
c2fc1258 50AliFMDRawStream::ReadChannel(UInt_t& ddl, UInt_t& addr,
51 UInt_t& len, UShort_t* data)
1e8f773e 52{
c2fc1258 53 UInt_t prevddl = 0;
54 Int_t l = 0;
55 static Int_t last = 0xFFFF; // 0xFFFF means signal is used
56 Bool_t next = kTRUE;
57 do {
58 Int_t signal = last;
59 if (last > 0x3FF) {
60 AliDebug(30, Form("Last is 0x%x, so reading a new word", last));
61 next = Next();
62 if (!next) break;
63 signal = GetSignal();
64 if (GetHWAddress() != GetPrevHWAddress() && GetPrevHWAddress() >= 0) {
65 AliDebug(15, Form("New hardware address, was 0x%x, now 0x%x",
66 GetPrevHWAddress(), GetHWAddress()));
67 addr = GetPrevHWAddress();
68 ddl = AliFMDParameters::kBaseDDL + prevddl;
69 len = l+1;
70 last = signal;
71 break;
72 }
1e8f773e 73 }
194a8523 74 prevddl = GetPrevDDLNumber();
c2fc1258 75 Int_t t = GetTime();
76 l = TMath::Max(l, t);
77 data[t] = signal;
78 last = 0xFFFF;
79 } while (next);
80 return next;
1e8f773e 81}
82
4347b38f 83
4347b38f 84//_____________________________________________________________________________
85//
86// EOF
87//