[u/mrichter/AliRoot.git] / RAW / AliTPCRawStream.h

#ifndef ALITPCRAWSTREAM_H
#define ALITPCRAWSTREAM_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
///
/// This class provides access to TPC digits in raw data.
///
///////////////////////////////////////////////////////////////////////////////

#include <TObject.h>
#include "AliTPCCompression.h"

class AliRawReader;


class AliTPCRawStream: public TObject {
  public :
    AliTPCRawStream(AliRawReader* rawReader);
    AliTPCRawStream(const AliTPCRawStream& stream);
    AliTPCRawStream& operator = (const AliTPCRawStream& stream);
    virtual ~AliTPCRawStream();
    void Reset();

    virtual Bool_t   Next();

    inline Int_t            GetSector() const {return fSector;};
    inline Int_t            GetPrevSector() const {return fPrevSector;};
    inline Bool_t           IsNewSector() const {return fSector != fPrevSector;};
    inline Int_t            GetRow() const {return fRow;};
    inline Int_t            GetPrevRow() const {return fPrevRow;};
    inline Bool_t           IsNewRow() const {return (fRow != fPrevRow) || IsNewSector();};
    inline Int_t            GetPad() const {return fPad;};
    inline Int_t            GetPrevPad() const {return fPrevPad;};
    inline Bool_t           IsNewPad() const {return (fPad != fPrevPad) || IsNewRow();};
    inline Int_t            GetTime() const {return fTime;};
    inline Int_t            GetSignal() const {return fSignal;};

  protected :
    UShort_t         Get10BitWord(UChar_t* buffer, Int_t position) const;

    AliRawReader*    fRawReader;    // object for reading the raw data

    AliTPCCompression    fCompression;   // object for decompression
    static const Int_t   fgkNumTables = 5; // number of (de)compression tables
    static AliTPCHNode** fgRootNode;     // (de)compression tables

    static const Int_t fgkDataMax = 10000000; // size of array for uncompressed raw data
    UShort_t*        fData;         // uncompressed raw data
    Int_t            fDataSize;     // actual size of the uncompressed raw data
    Int_t            fPosition;     // current position in fData
    Int_t            fCount;        // counter of words to be read for current trailer
    Int_t            fBunchLength;  // remaining number of signal bins in the current bunch
    static const Int_t fgkOffset = 1; // offset of signal

    Int_t            fSector;       // index of current sector
    Int_t            fPrevSector;   // index of previous sector
    Int_t            fRow;          // index of current row
    Int_t            fPrevRow;      // index of previous row
    Int_t            fPad;          // index of current pad
    Int_t            fPrevPad;      // index of previous pad
    Int_t            fTime;         // index of current time bin
    Int_t            fSignal;       // signal in ADC counts

    ClassDef(AliTPCRawStream, 0)    // base class for reading TPC raw digits
};

#endif
Commit	Line	Data
	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
	6	/* $Id$ */
	7
	8	///////////////////////////////////////////////////////////////////////////////
	9	///
	10	/// This class provides access to TPC digits in raw data.
	11	///
	12	///////////////////////////////////////////////////////////////////////////////
	13
	14	#include <TObject.h>
	15	#include "AliTPCCompression.h"
	16
	17	class AliRawReader;
	18
	19
	20	class AliTPCRawStream: public TObject {
	21	public :
	22	AliTPCRawStream(AliRawReader* rawReader);
	23	AliTPCRawStream(const AliTPCRawStream& stream);
	24	AliTPCRawStream& operator = (const AliTPCRawStream& stream);
	25	virtual ~AliTPCRawStream();
	26	void Reset();
	27
	28	virtual Bool_t Next();
	29
	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;};
	41
	42	protected :
	43	UShort_t Get10BitWord(UChar_t* buffer, Int_t position) const;
	44
	45	AliRawReader* fRawReader; // object for reading the raw data
	46
	47	AliTPCCompression fCompression; // object for decompression
	48	static const Int_t fgkNumTables = 5; // number of (de)compression tables
	49	static AliTPCHNode** fgRootNode; // (de)compression tables
	50
	51	static const Int_t fgkDataMax = 10000000; // size of array for uncompressed raw data
	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
	57	static const Int_t fgkOffset = 1; // offset of signal
	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