New flat raw-data event format. The details can be found at: http://indico.cern.ch...
[u/mrichter/AliRoot.git] / RAW / AliAltroRawStreamFast.cxx
CommitLineData
31a920d3 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///////////////////////////////////////////////////////////////////////////////
17///
18/// This class provides fast access to Altro raw data.
19///
20/// It loops over all Altro payload in the raw data given by the AliRawReader.
21///
22///
23///////////////////////////////////////////////////////////////////////////////
24
25#include "AliAltroRawStreamFast.h"
26#include "AliRawReader.h"
27#include "AliLog.h"
28
29ClassImp(AliAltroRawStreamFast)
30
31
32//_____________________________________________________________________________
33AliAltroRawStreamFast::AliAltroRawStreamFast(AliRawReader* rawReader) :
53d3458c 34 fDDLNumber(-1),
35 fPrevDDLNumber(-1),
31a920d3 36 fDecoder(),
37 fData(),
38 fBunch(),
39 fRawReader(rawReader)
40{
41 // Default constructor
42 fRawReader->Reset();
43}
44
45AliAltroRawStreamFast::~AliAltroRawStreamFast()
46{
47 // Destructor
48}
49
50//_____________________________________________________________________________
51void AliAltroRawStreamFast::SelectRawData(Int_t detId)
52{
53 // Select the raw data for specific
54 // detector id
55 AliDebug(1,Form("Selecting raw data for detector %d",detId));
56 fRawReader->Select(detId);
57}
58
59//_____________________________________________________________________________
60void AliAltroRawStreamFast::SelectRawData(const char *detName)
61{
62 // Select the raw data for specific
63 // detector name
64 AliDebug(1,Form("Selecting raw data for detector %s",detName));
65 fRawReader->Select(detName);
66}
53d3458c 67//_____________________________________________________________________________
68void AliAltroRawStreamFast::Reset()
69{
70 // reset altro raw stream params
71
72 fDDLNumber = fPrevDDLNumber = -1;
73 if (fRawReader) fRawReader->Reset();
31a920d3 74
53d3458c 75}
76//_____________________________________________________________________________
31a920d3 77Bool_t AliAltroRawStreamFast::NextDDL()
78{
79 // Read next DDL raw-data payload and
80 // runs the altro decoder over the payload
81
82 UChar_t *dataPtr = NULL;
83 do {
84 if (!fRawReader->ReadNextData(dataPtr)) return kFALSE;
85 } while (fRawReader->GetDataSize() == 0);
53d3458c 86 fPrevDDLNumber = fDDLNumber;
87 fDDLNumber = fRawReader->GetDDLID();
31a920d3 88
89 // Temporary solution while Per Thomas is
90 // changing the decoder code
91 dataPtr -= sizeof(AliRawDataHeader);
92 Int_t length = fRawReader->GetDataSize() + sizeof(AliRawDataHeader);
93
94 fDecoder.SetMemory(dataPtr, length);
95 fDecoder.Decode();
96
97 return kTRUE;
98}
53d3458c 99//_____________________________________________________________________________
31a920d3 100Bool_t AliAltroRawStreamFast::NextChannel()
101{
102 // Get the data for the next altro channel
103 do {
104 if (!fDecoder.NextChannel(&fData)) return kFALSE;
105 } while (fData.GetDataSize() == 0);
106 return kTRUE;
107}
53d3458c 108//_____________________________________________________________________________
31a920d3 109Bool_t AliAltroRawStreamFast::NextBunch()
110{
111 // Get the data for the next altro bunch
112 return fData.NextBunch(&fBunch);
113}