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f8aae377 | 1 | #ifndef ALITPCRAWSTREAM_H |
2 | #define ALITPCRAWSTREAM_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
bea6b2a4 | 6 | /* $Id$ */ |
7 | ||
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | /// | |
10 | /// This class provides access to TPC digits in raw data. | |
11 | /// | |
12 | /////////////////////////////////////////////////////////////////////////////// | |
13 | ||
f8aae377 | 14 | #include <TObject.h> |
f8aae377 | 15 | #include "AliTPCCompression.h" |
16 | ||
42d20574 | 17 | class AliRawReader; |
18 | ||
f8aae377 | 19 | |
20 | class AliTPCRawStream: public TObject { | |
21 | public : | |
22 | AliTPCRawStream(AliRawReader* rawReader); | |
42d20574 | 23 | AliTPCRawStream(const AliTPCRawStream& stream); |
24 | AliTPCRawStream& operator = (const AliTPCRawStream& stream); | |
f8aae377 | 25 | virtual ~AliTPCRawStream(); |
a8ffd46b | 26 | void Reset(); |
f8aae377 | 27 | |
28 | virtual Bool_t Next(); | |
29 | ||
a8ffd46b | 30 | inline Int_t GetSector() const {return fSector;}; |
31 | inline Int_t GetPrevSector() const {return fPrevSector;}; | |
32 | inline Bool_t IsNewSector() const {return fSector != fPrevSector;}; | |
33 | inline Int_t GetRow() const {return fRow;}; | |
34 | inline Int_t GetPrevRow() const {return fPrevRow;}; | |
35 | inline Bool_t IsNewRow() const {return (fRow != fPrevRow) || IsNewSector();}; | |
36 | inline Int_t GetPad() const {return fPad;}; | |
37 | inline Int_t GetPrevPad() const {return fPrevPad;}; | |
38 | inline Bool_t IsNewPad() const {return (fPad != fPrevPad) || IsNewRow();}; | |
39 | inline Int_t GetTime() const {return fTime;}; | |
40 | inline Int_t GetSignal() const {return fSignal;}; | |
f8aae377 | 41 | |
42 | protected : | |
42d20574 | 43 | UShort_t Get10BitWord(UChar_t* buffer, Int_t position) const; |
f8aae377 | 44 | |
45 | AliRawReader* fRawReader; // object for reading the raw data | |
46 | ||
47 | AliTPCCompression fCompression; // object for decompression | |
42d20574 | 48 | static const Int_t fgkNumTables = 5; // number of (de)compression tables |
f8aae377 | 49 | static AliTPCHNode** fgRootNode; // (de)compression tables |
50 | ||
42d20574 | 51 | static const Int_t fgkDataMax = 10000000; // size of array for uncompressed raw data |
f8aae377 | 52 | UShort_t* fData; // uncompressed raw data |
53 | Int_t fDataSize; // actual size of the uncompressed raw data | |
54 | Int_t fPosition; // current position in fData | |
55 | Int_t fCount; // counter of words to be read for current trailer | |
56 | Int_t fBunchLength; // remaining number of signal bins in the current bunch | |
42d20574 | 57 | static const Int_t fgkOffset = 1; // offset of signal |
f8aae377 | 58 | |
59 | Int_t fSector; // index of current sector | |
60 | Int_t fPrevSector; // index of previous sector | |
61 | Int_t fRow; // index of current row | |
62 | Int_t fPrevRow; // index of previous row | |
63 | Int_t fPad; // index of current pad | |
64 | Int_t fPrevPad; // index of previous pad | |
65 | Int_t fTime; // index of current time bin | |
66 | Int_t fSignal; // signal in ADC counts | |
67 | ||
68 | ClassDef(AliTPCRawStream, 0) // base class for reading TPC raw digits | |
69 | }; | |
70 | ||
71 | #endif |