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ff2f0f94 | 1 | // XEmacs -*-C++-*- |
7e914051 | 2 | // $Id$ |
ff2f0f94 | 3 | |
4 | #ifndef ALIHLTTPCCOMPMODELDEFLATER_H | |
5 | #define ALIHLTTPCCOMPMODELDEFLATER_H | |
892210c7 | 6 | //* This file is property of and copyright by the ALICE HLT Project * |
7 | //* ALICE Experiment at CERN, All rights reserved. * | |
8 | //* See cxx source for full Copyright notice * | |
ff2f0f94 | 9 | |
10 | /** @file AliHLTTPCCompModelDeflater.h | |
11 | @author Timm Steinbeck | |
12 | @date | |
13 | @brief Declaration of a compressor class for TPC track data. */ | |
14 | ||
15 | #include "AliHLTTPCTrackArray.h" | |
16 | #include "AliHLTTPCTrackletDataFormat.h" | |
17 | #include "AliHLTTPCClusterDataFormat.h" | |
18 | #include "AliHLTLogging.h" | |
19 | #include "AliHLTTPCModels.h" | |
20 | ||
21 | /** | |
22 | * @class AliHLTTPCCompModelDeflater | |
23 | * @brief A HLT TPC track compressor. | |
24 | * | |
25 | * A class that can compress HLT TPC track model data | |
26 | */ | |
27 | class AliHLTTPCCompModelDeflater: public AliHLTLogging | |
28 | { | |
29 | public: | |
30 | /** standard constructor */ | |
31 | AliHLTTPCCompModelDeflater(); | |
32 | /** standard destructor */ | |
33 | virtual ~AliHLTTPCCompModelDeflater(); | |
34 | ||
35 | /** function to write shape */ | |
36 | void WriteShape( bool write=true ) | |
37 | { | |
38 | fWriteShape = write; | |
39 | } | |
40 | ||
41 | /** function to compress tracks | |
42 | * @param inData AliHLTUInt8_t* pointer to input data | |
43 | * @param inputSize UInt_t const& input size | |
44 | * @param output AliHLTUInt8_t* pointer to output data | |
45 | * @param outputSize UInt_t& output size | |
46 | * @return zero upon success | |
47 | */ | |
48 | int CompressTracks( AliHLTUInt8_t* inData, UInt_t const& inputSize, AliHLTUInt8_t* output, UInt_t& outputSize ); | |
49 | ||
50 | /** function to compress remaining clusters | |
51 | * @param inData AliHLTUInt8_t* pointer to input data | |
52 | * @param inputSize UInt_t const& input size | |
53 | * @param output AliHLTUInt8_t* pointer to output data | |
54 | * @param outputSize UInt_t& output size | |
55 | * @return zero upon success | |
56 | */ | |
57 | int CompressRemainingClusters( AliHLTUInt8_t* inData, UInt_t const& inputSize, AliHLTUInt8_t* output, UInt_t& outputSize ); | |
58 | ||
59 | protected: | |
60 | ||
61 | /** member variable to write shape */ | |
892210c7 | 62 | bool fWriteShape; // member variable to write shape |
ff2f0f94 | 63 | |
64 | /** function to initialise bit data output | |
65 | * @param output AliHLTUInt8_t* pointer to output data | |
66 | * @param outputSize UInt_t output size | |
67 | */ | |
892210c7 | 68 | void InitBitDataOutput( AliHLTUInt8_t* output, UInt_t outputSize ); |
ff2f0f94 | 69 | |
70 | /** function to close bit data output */ | |
71 | void CloseBitDataOutput() | |
72 | { | |
73 | Pad8Bits(); | |
74 | } | |
75 | ||
76 | /** function to get current byte output position | |
77 | * @return unsigned long value for current byte output position | |
78 | */ | |
79 | unsigned long GetCurrentByteOutputPosition() const | |
80 | { | |
81 | return (unsigned long)( fBitDataCurrentOutput - fBitDataCurrentOutputStart ); | |
82 | } | |
83 | ||
84 | /** function to get current bit output position | |
85 | * @return unsigned long value for current bit output position | |
86 | */ | |
87 | unsigned GetCurrentBitOutputPosition() const | |
88 | { | |
89 | return fBitDataCurrentPosInWord; | |
90 | } | |
91 | ||
92 | /** function to get current output byte | |
93 | * @param offset Int_t (set to zero if not specified explicitly) | |
94 | * @return AliHLTUInt8_t value for current output byte | |
95 | */ | |
892210c7 | 96 | AliHLTUInt8_t GetCurrentOutputByte( Int_t offset=0 ) const; |
ff2f0f94 | 97 | |
98 | /** function to get bit data output size bytes | |
99 | * @return UInt_t value of bit data output size bytes | |
100 | */ | |
101 | UInt_t GetBitDataOutputSizeBytes() const | |
102 | { | |
103 | return fBitDataCurrentOutput-fBitDataCurrentOutputStart; | |
104 | } | |
105 | ||
106 | /** function for output bit | |
107 | * @param value AliHLTUInt32_t const & input | |
108 | * @return boolean (output bit) | |
109 | */ | |
892210c7 | 110 | bool OutputBit( AliHLTUInt32_t const & value ); |
ff2f0f94 | 111 | |
112 | /** function to output bits | |
113 | * @param value AliHLTUInt64_t const & | |
114 | * @param bitCount UInt_t const & | |
115 | * @return zero upon success | |
116 | */ | |
892210c7 | 117 | bool OutputBits( AliHLTUInt64_t const & value, UInt_t const & bitCount ); |
ff2f0f94 | 118 | |
119 | /** function pad 8 bits */ | |
892210c7 | 120 | void Pad8Bits(); |
ff2f0f94 | 121 | |
122 | /** function to output bytes | |
123 | * @param data AliHLTUInt8_t const * | |
124 | * @param byteCount UInt_t const & | |
125 | * @return boolean (output bytes) | |
126 | */ | |
892210c7 | 127 | bool OutputBytes( AliHLTUInt8_t const * data, UInt_t const & byteCount ); |
ff2f0f94 | 128 | private: |
129 | /** copy constructor prohibited */ | |
130 | AliHLTTPCCompModelDeflater(const AliHLTTPCCompModelDeflater&); | |
131 | /** assignment operator prohibited */ | |
132 | AliHLTTPCCompModelDeflater& operator=(const AliHLTTPCCompModelDeflater&); | |
133 | ||
134 | /** member variable for bit data current word */ | |
892210c7 | 135 | AliHLTUInt8_t fBitDataCurrentWord; // member variable for bit data current word |
ff2f0f94 | 136 | /** member variable for bit data current position in word */ |
892210c7 | 137 | UInt_t fBitDataCurrentPosInWord; // member variable for bit data current position in word |
ff2f0f94 | 138 | /** member variable for bit data current output */ |
892210c7 | 139 | AliHLTUInt8_t *fBitDataCurrentOutput; // member variable for bit data current output |
ff2f0f94 | 140 | /** member variable for bit data current output start */ |
892210c7 | 141 | AliHLTUInt8_t *fBitDataCurrentOutputStart; // member variable for bit data current output start |
ff2f0f94 | 142 | /** member variable for bit data current output end */ |
892210c7 | 143 | AliHLTUInt8_t *fBitDataCurrentOutputEnd; // member variable for bit data current output end |
ff2f0f94 | 144 | |
145 | ClassDef(AliHLTTPCCompModelDeflater, 0); | |
146 | ||
147 | }; | |
148 | #endif |