[u/mrichter/AliRoot.git] / HLT / misc / AliL3DDLRawReader.h

// @(#) $Id$

#ifndef ALIL3DDLRAWREADER_H
#define ALIL3DDLRAWREADER_H

// see description in upcoming ALICE note
// by D.Favretto and A.K.Mohanty
struct AliL3DDLMiniHeader 
{
  UInt_t    fSize;
  UChar_t   fDetectorID;
  UChar_t   fMagicWord[3];
  UChar_t   fVersion;
  UChar_t   fCompressionFlag;
  UShort_t  fDDLID;
};

class AliL3DDLRawReader 
{
  public :
    AliL3DDLRawReader();
    virtual ~AliL3DDLRawReader();

    void Select(Int_t detectorID, Int_t minDDLID = -1, Int_t maxDDLID = -1);

    inline Int_t     GetDataSize()   const {return fMiniHeader->fSize;};
    inline Int_t     GetDetectorID() const {return fMiniHeader->fDetectorID;};
    inline Int_t     GetDDLID()      const {return fMiniHeader->fDDLID;};
    inline Int_t     GetVersion()    const {return fMiniHeader->fVersion;};
    inline Bool_t    IsCompressed()  const {return fMiniHeader->fCompressionFlag != 0;};

    virtual Bool_t   ReadMiniHeader() = 0;
    virtual Bool_t   ReadNextData(UChar_t*& data) = 0;
    virtual Bool_t   ReadNextInt(UInt_t& data);
    virtual Bool_t   ReadNextShort(UShort_t& data);
    virtual Bool_t   ReadNextChar(UChar_t& data);

    virtual Bool_t   Reset() = 0;

  protected :
    Bool_t           IsSelected();

    Bool_t           CheckMiniHeader();
    virtual Bool_t   ReadNext(UChar_t* data, Int_t size) = 0;

    AliL3DDLMiniHeader*  fMiniHeader;  // current mini header
    Int_t                fCount;       // counter of bytes to be read for current DDL

    Int_t            fSelectDetectorID;  // id of selected detector (<0 = no selection)
    Int_t            fSelectMinDDLID;    // minimal index of selected DDLs (<0 = no selection)
    Int_t            fSelectMaxDDLID;    // maximal index of selected DDLs (<0 = no selection)

    ClassDef(AliL3DDLRawReader,1) //AliL3DDLRawReader
};

#endif
Commit	Line	Data
240d63be	1	// @(#) $Id$
	2
	3	#ifndef ALIL3DDLRAWREADER_H
	4	#define ALIL3DDLRAWREADER_H
	5
	6	// see description in upcoming ALICE note
	7	// by D.Favretto and A.K.Mohanty
	8	struct AliL3DDLMiniHeader
	9	{
	10	UInt_t fSize;
	11	UChar_t fDetectorID;
	12	UChar_t fMagicWord[3];
	13	UChar_t fVersion;
	14	UChar_t fCompressionFlag;
	15	UShort_t fDDLID;
	16	};
	17
	18	class AliL3DDLRawReader
	19	{
	20	public :
	21	AliL3DDLRawReader();
	22	virtual ~AliL3DDLRawReader();
	23
	24	void Select(Int_t detectorID, Int_t minDDLID = -1, Int_t maxDDLID = -1);
	25
	26	inline Int_t GetDataSize() const {return fMiniHeader->fSize;};
	27	inline Int_t GetDetectorID() const {return fMiniHeader->fDetectorID;};
	28	inline Int_t GetDDLID() const {return fMiniHeader->fDDLID;};
	29	inline Int_t GetVersion() const {return fMiniHeader->fVersion;};
	30	inline Bool_t IsCompressed() const {return fMiniHeader->fCompressionFlag != 0;};
	31
	32	virtual Bool_t ReadMiniHeader() = 0;
	33	virtual Bool_t ReadNextData(UChar_t*& data) = 0;
	34	virtual Bool_t ReadNextInt(UInt_t& data);
	35	virtual Bool_t ReadNextShort(UShort_t& data);
	36	virtual Bool_t ReadNextChar(UChar_t& data);
	37
	38	virtual Bool_t Reset() = 0;
	39
	40	protected :
	41	Bool_t IsSelected();
	42
	43	Bool_t CheckMiniHeader();
	44	virtual Bool_t ReadNext(UChar_t* data, Int_t size) = 0;
	45
	46	AliL3DDLMiniHeader* fMiniHeader; // current mini header
	47	Int_t fCount; // counter of bytes to be read for current DDL
	48
	49	Int_t fSelectDetectorID; // id of selected detector (<0 = no selection)
	50	Int_t fSelectMinDDLID; // minimal index of selected DDLs (<0 = no selection)
	51	Int_t fSelectMaxDDLID; // maximal index of selected DDLs (<0 = no selection)
	52
	53	ClassDef(AliL3DDLRawReader,1) //AliL3DDLRawReader
	54	};
	55
	56	#endif