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1 | /* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * | |
2 | * See cxx source for full Copyright notice */ | |
3 | ||
4 | ///////////////////////////////////////////////////// | |
5 | // Class used for read-write the ALTRO data format // | |
6 | ///////////////////////////////////////////////////// | |
7 | ||
8 | /*This class is an interface between the altro format file and the | |
9 | user, and can be used in write or read mode | |
10 | In the write mode a new altro file is created and filled using the method FillBuffer(). | |
11 | The name of the file is specified as parameter in the constructor as well as the type mode. | |
12 | In the Read mode the specified file is open and the values can be read using the | |
13 | methods GetNext() and GetNextBackWord(). | |
14 | The first method is used to read the file forward while the second is used to read backward | |
15 | */ | |
16 | ||
17 | #ifndef AliALTROBUFFER_H | |
18 | #define AliALTROBUFFER_H | |
19 | ||
20 | #include <TObject.h> | |
21 | ||
22 | class AliFstream; | |
23 | ||
24 | class AliAltroMapping; | |
25 | ||
26 | class AliAltroBuffer: public TObject { | |
27 | public: | |
28 | AliAltroBuffer(const char* fileName, const AliAltroMapping *mapping = NULL); | |
29 | virtual ~AliAltroBuffer(); | |
30 | ||
31 | void FillBuffer(Int_t val); | |
32 | //this method stores a word into the buffer | |
33 | Int_t GetFreeCellNumber()const {return fFreeCellBuffer;} | |
34 | //this method returns the number of free cells of the internal buffer | |
35 | ||
36 | void WriteTrailer(Int_t wordsNumber, Int_t padNumber, | |
37 | Int_t rowNumber, Int_t secNumber); | |
38 | //this method is used to write the trailer | |
39 | void WriteTrailer(Int_t wordsNumber, Short_t hwAddress); | |
40 | //this method is used to write the trailer | |
41 | void WriteDummyTrailer(Int_t wordsNumber, Int_t padNumber, | |
42 | Int_t rowNumber, Int_t secNumber); | |
43 | //this method is used to write a dummy trailer | |
44 | ||
45 | void WriteChannel(Int_t padNumber, Int_t rowNumber, Int_t secNumber, | |
46 | Int_t nTimeBins, const Int_t* adcValues, | |
47 | Int_t threshold = 0); | |
48 | //this method is used to write all ADC values and the trailer of a channel | |
49 | void WriteChannel(Short_t hwAddress, | |
50 | Int_t nTimeBins, const Int_t* adcValues, | |
51 | Int_t threshold = 0); | |
52 | //this method is used to write all ADC values and the trailer of a channel | |
53 | Int_t WriteBunch(Int_t nTimeBins, const Int_t* adcValues, | |
54 | Int_t threshold = 0); | |
55 | //this method is used to write all ADC values | |
56 | ||
57 | void WriteDataHeader(Bool_t dummy, Bool_t compressed); | |
58 | //this method is used to write the data header | |
59 | void SetVerbose(Int_t val) {fVerbose = val;} | |
60 | //this method is used to set the verbose level | |
61 | //level 0 no output messages | |
62 | //level !=0 some messages are displayed during the run | |
63 | void Flush(); | |
64 | //this method is used to fill the buffer with 2AA hexadecimal value and save it into the output file | |
65 | ||
66 | void SetMapping(AliAltroMapping *mapping) { fMapping = mapping; } | |
67 | ||
68 | protected: | |
69 | AliAltroBuffer(const AliAltroBuffer& source); | |
70 | AliAltroBuffer& operator = (const AliAltroBuffer& source); | |
71 | ||
72 | UInt_t fBuffer[5]; //Buffer dimension is 32*5=160 bits and it contains 16 values | |
73 | //A value is never splitted in two Buffer | |
74 | ||
75 | ||
76 | Int_t fShift; //This variable contains the number of free bits in the current cell of | |
77 | //the Buffer after that the value Val is been inserted. | |
78 | //size of Int_t is 32 bit that is the same size of a cell of Buffer so | |
79 | //the shift operation are performed only on value Val. | |
80 | Int_t fCurrentCell; //This variable contains the cell number of the cell currently used | |
81 | Int_t fFreeCellBuffer;//number of free cells of the buffer | |
82 | Int_t fVerbose; //verbose level | |
83 | AliFstream* fFile; //logical name of the I/O file | |
84 | UInt_t fDataHeaderPos;//Data header position | |
85 | ||
86 | // Now the parameters for the mapping | |
87 | const AliAltroMapping* fMapping; // Pointer to the mapping handler | |
88 | ||
89 | ClassDef(AliAltroBuffer,0) // Interface to the Altro format | |
90 | }; | |
91 | ||
92 | #endif |