[u/mrichter/AliRoot.git] / ITS / AliITSRawStreamSDD.h

#ifndef ALIITSRAWSTREAMSDD_H
#define ALIITSRAWSTREAMSDD_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 ITS SDD digits in raw data 
/// (default=simulated data).
///
///////////////////////////////////////////////////////////////////////////////

#include "AliITSRawStream.h"

class AliRawReader;


class AliITSRawStreamSDD: public AliITSRawStream {
  public :
    AliITSRawStreamSDD(AliRawReader* rawReader);
    virtual ~AliITSRawStreamSDD() {};

    virtual Bool_t   Next();

    virtual Int_t    GetAnode() const {return fCoord1;}
    virtual Int_t    GetTime() const {return fCoord2;}
    virtual Int_t    GetChannel() const {return fChannel;}
    virtual Int_t    ReadJitter() {return 0;}

    virtual void     SetLowCarlosThreshold(Int_t th, Int_t i) {fLowThreshold[i]=th;}

    static  Int_t    GetModuleNumber(UInt_t iDDL, UInt_t iModule)
                     {return fgkDDLModuleMap[iDDL][iModule];}

    enum {kDDLsNumber = 12};      // number of DDLs in SDD
    enum {kModulesPerDDL = 22};   // number of modules in each DDL 

 
  protected:
    static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; //  mapping DDL/module -> module number

    virtual UInt_t   ReadBits();
    virtual Int_t    DecompAmbra(Int_t value) const;

    static const UInt_t fgkCodeLength[8]; //code length

    UInt_t           fData;         // data read for file
    Int_t            fSkip;         // number of skipped words
    Int_t            fEventId;      // event ID from the header
    Int_t            fCarlosId;     // carlos ID from the header
    Int_t            fChannel;      // current channel
    Int_t            fJitter;          // jitter between L0 and pascal stop (x25ns)
    ULong64_t        fChannelData[2];  // packed data for the 2 channels
    UInt_t           fLastBit[2];      // last filled bit in fChannelData
    UInt_t           fChannelCode[2];  // current channel code
    Bool_t           fReadCode[2];     // next bits are code or data
    UInt_t           fReadBits[2];     // number of bits to read
    Int_t            fTimeBin[2];      // current time bin
    Int_t            fAnode[2];        // current anode number
    Int_t            fLowThreshold[2]; // low Carlos threshold
    

    ClassDef(AliITSRawStreamSDD, 1) // class for reading ITS SDD raw digits
};

#endif
Commit	Line	Data
2906f4c2	1	#ifndef ALIITSRAWSTREAMSDD_H
	2	#define ALIITSRAWSTREAMSDD_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	///
1ba0280f	10	/// This class provides access to ITS SDD digits in raw data
1ba0280f	11	/// (default=simulated data).
2906f4c2	12	///
	13	///////////////////////////////////////////////////////////////////////////////
	14
	15	#include "AliITSRawStream.h"
	16
	17	class AliRawReader;
	18
	19
	20	class AliITSRawStreamSDD: public AliITSRawStream {
	21	public :
	22	AliITSRawStreamSDD(AliRawReader* rawReader);
	23	virtual ~AliITSRawStreamSDD() {};
	24
	25	virtual Bool_t Next();
	26
1ba0280f	27	virtual Int_t GetAnode() const {return fCoord1;}
	28	virtual Int_t GetTime() const {return fCoord2;}
	29	virtual Int_t GetChannel() const {return fChannel;}
	30	virtual Int_t ReadJitter() {return 0;}
	31
	32	virtual void SetLowCarlosThreshold(Int_t th, Int_t i) {fLowThreshold[i]=th;}
	33
	34	static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule)
	35	{return fgkDDLModuleMap[iDDL][iModule];}
2906f4c2	36
2906f4c2	37	enum {kDDLsNumber = 12}; // number of DDLs in SDD
	38	enum {kModulesPerDDL = 22}; // number of modules in each DDL
	39
1ba0280f	40
	41	protected:
	42	static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; // mapping DDL/module -> module number
	43
	44	virtual UInt_t ReadBits();
	45	virtual Int_t DecompAmbra(Int_t value) const;
2906f4c2	46
38300302	47	static const UInt_t fgkCodeLength[8]; //code length
2906f4c2	48
2906f4c2	49	UInt_t fData; // data read for file
1ba0280f	50	Int_t fSkip; // number of skipped words
	51	Int_t fEventId; // event ID from the header
	52	Int_t fCarlosId; // carlos ID from the header
	53	Int_t fChannel; // current channel
	54	Int_t fJitter; // jitter between L0 and pascal stop (x25ns)
	55	ULong64_t fChannelData[2]; // packed data for the 2 channels
	56	UInt_t fLastBit[2]; // last filled bit in fChannelData
	57	UInt_t fChannelCode[2]; // current channel code
	58	Bool_t fReadCode[2]; // next bits are code or data
	59	UInt_t fReadBits[2]; // number of bits to read
	60	Int_t fTimeBin[2]; // current time bin
	61	Int_t fAnode[2]; // current anode number
	62	Int_t fLowThreshold[2]; // low Carlos threshold
	63
2906f4c2	64
1ba0280f	65	ClassDef(AliITSRawStreamSDD, 1) // class for reading ITS SDD raw digits
2906f4c2	66	};
	67
	68	#endif