-// $Id: AliHLTTPCCompModelInflater.cxx,v 1.2 2006/08/10 09:46:51 richterm Exp $
+// $Id$
-/**************************************************************************
- * TPCCompModelInflaterright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Authors: Timm Steinbeck <timm@kip.uni-heidelberg.de> *
- * for The ALICE Off-line Project. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
+//**************************************************************************
+//* This file is property of and copyright by the ALICE HLT Project *
+//* ALICE Experiment at CERN, All rights reserved. *
+//* *
+//* Primary Authors: Timm Steinbeck <timm@kip.uni-heidelberg.de> *
+//* for The ALICE HLT Project. *
+//* *
+//* Permission to use, copy, modify and distribute this software and its *
+//* documentation strictly for non-commercial purposes is hereby granted *
+//* without fee, provided that the above copyright notice appears in all *
+//* copies and that both the copyright notice and this permission notice *
+//* appear in the supporting documentation. The authors make no claims *
+//* about the suitability of this software for any purpose. It is *
+//* provided "as is" without express or implied warranty. *
+//**************************************************************************
/** @file AliHLTTPCCompModelInflater.cxx
@author Timm Steinbeck
@date
- @brief A copy processing component for the HLT. */
+ @brief A copy processing component for the HLT.
+ *
+ * The model inflater is the counterpart of the deflater component
+ * which decompresses the data after a conversion and compression.
+ * The deflater is followed by a deconverter in order to get the
+ * original standard HLT cluster track format back
+ *
+ */
#if __GNUC__ >= 3
using namespace std;
// see header file for class documentation
}
+void AliHLTTPCCompModelInflater::InitBitDataInput( AliHLTUInt8_t* input, UInt_t inputSize )
+ {
+ // sse header file for class documentation
+ fBitDataCurrentWord = 0;
+ fBitDataCurrentPosInWord = 7;
+ fBitDataCurrentInput = fBitDataCurrentInputStart = input;
+ fBitDataCurrentInputEnd = input+inputSize;
+ fBitDataCurrentWord = *fBitDataCurrentInput;
+ }
+
+bool AliHLTTPCCompModelInflater::InputBit( AliHLTUInt8_t & value )
+ {
+ // see header file for class documenation
+ if ( fBitDataCurrentInput>=fBitDataCurrentInputEnd )
+ return false;
+ value = (fBitDataCurrentWord >> fBitDataCurrentPosInWord) & 1;
+ if ( fBitDataCurrentPosInWord )
+ fBitDataCurrentPosInWord--;
+ else
+ {
+ fBitDataCurrentInput++;
+ if ( fBitDataCurrentInput<fBitDataCurrentInputEnd )
+ {
+ fBitDataCurrentWord = *fBitDataCurrentInput;
+ fBitDataCurrentPosInWord = 7;
+ }
+ }
+ return true;
+ }
+
+bool AliHLTTPCCompModelInflater::InputBits( AliHLTUInt8_t & value, UInt_t const & bitCount )
+ {
+ // see header file for clas documentation
+ if ( bitCount>8 )
+ {
+ HLTFatal( "Internal error: Attempt to write more than 32 bits (%u)", (unsigned)bitCount );
+ return false;
+ }
+ AliHLTUInt64_t temp;
+ if ( !InputBits( temp, bitCount ) )
+ return false;
+ value = (AliHLTUInt8_t)( temp & (AliHLTUInt64_t)0xFFFFFFFFULL );
+ return true;
+ }
+
+bool AliHLTTPCCompModelInflater::InputBits( AliHLTUInt16_t & value, UInt_t const & bitCount )
+ {
+ // see header file for class documenation
+ if ( bitCount>16 )
+ {
+ HLTFatal( "Internal error: Attempt to write more than 32 bits (%u)", (unsigned)bitCount );
+ return false;
+ }
+ AliHLTUInt64_t temp;
+ if ( !InputBits( temp, bitCount ) )
+ return false;
+ value = (AliHLTUInt16_t)( temp & (AliHLTUInt64_t)0xFFFFFFFFULL );
+ return true;
+ }
+
+bool AliHLTTPCCompModelInflater::InputBits( AliHLTUInt32_t & value, UInt_t const & bitCount )
+ {
+ // see header file for class documentation
+ if ( bitCount>32 )
+ {
+ HLTFatal( "Internal error: Attempt to write more than 32 bits (%u)", (unsigned)bitCount );
+ return false;
+ }
+ AliHLTUInt64_t temp;
+ if ( !InputBits( temp, bitCount ) )
+ return false;
+ value = (AliHLTUInt32_t)( temp & (AliHLTUInt64_t)0xFFFFFFFFULL );
+ return true;
+ }
+
+bool AliHLTTPCCompModelInflater::InputBits( Int_t & value, UInt_t const & bitCount )
+ {
+ // see header file for class documentation
+ if ( bitCount>32 )
+ {
+ HLTFatal( "Internal error: Attempt to write more than 32 bits (%u)", (unsigned)bitCount );
+ return false;
+ }
+ AliHLTUInt64_t temp;
+ if ( !InputBits( temp, bitCount ) )
+ return false;
+ value = (Int_t)( temp & (AliHLTUInt64_t)0xFFFFFFFFULL );
+ return true;
+ }
+
+bool AliHLTTPCCompModelInflater::InputBits( AliHLTUInt64_t & value, UInt_t const & bitCount )
+ {
+ // see header file for class documenation
+ if ( bitCount>64 )
+ {
+ HLTFatal( "Internal error: Attempt to write more than 64 bits (%u)", (unsigned)bitCount );
+ return false;
+ }
+ UInt_t bitsToRead=bitCount;
+ UInt_t curBitCount;
+ value = 0;
+ while ( bitsToRead>0 )
+ {
+ if ( fBitDataCurrentInput>=fBitDataCurrentInputEnd )
+ return false;
+ if ( bitsToRead >= fBitDataCurrentPosInWord+1 )
+ curBitCount = fBitDataCurrentPosInWord+1;
+ else
+ curBitCount = bitsToRead;
+ value = (value << curBitCount) | ( (fBitDataCurrentWord >> (fBitDataCurrentPosInWord-curBitCount+1)) & ((1 << curBitCount)-1) );
+ if ( fBitDataCurrentPosInWord < curBitCount )
+ {
+ fBitDataCurrentInput++;
+ if ( fBitDataCurrentInput<fBitDataCurrentInputEnd )
+ {
+ fBitDataCurrentWord = *fBitDataCurrentInput;
+ fBitDataCurrentPosInWord = 7;
+ }
+ }
+ else
+ fBitDataCurrentPosInWord -= curBitCount;
+ bitsToRead -= curBitCount;
+ }
+ return true;
+ }
+
+void AliHLTTPCCompModelInflater::Pad8Bits()
+ {
+ // see header file for class documenation
+ if ( fBitDataCurrentPosInWord == 7 )
+ return;
+ fBitDataCurrentInput++;
+ if ( fBitDataCurrentInput<fBitDataCurrentInputEnd )
+ {
+ fBitDataCurrentWord = *fBitDataCurrentInput;
+ fBitDataCurrentPosInWord = 7;
+ }
+ }
+
+bool AliHLTTPCCompModelInflater::InputBytes( AliHLTUInt8_t* data, UInt_t const & byteCount )
+ {
+ // see header file for class documenation
+ Pad8Bits();
+ if ( fBitDataCurrentInput+byteCount>fBitDataCurrentInputEnd )
+ return false;
+ memcpy( data, fBitDataCurrentInput, byteCount );
+ fBitDataCurrentInput += byteCount;
+ if ( fBitDataCurrentInput<fBitDataCurrentInputEnd )
+ {
+ fBitDataCurrentWord = *fBitDataCurrentInput;
+ fBitDataCurrentPosInWord = 7;
+ }
+ return true;
+ }
+
int AliHLTTPCCompModelInflater::DecompressTracks( AliHLTUInt8_t* inData, UInt_t const& inputSize, AliHLTUInt8_t* output, UInt_t& outputSize )
{
// see header file for class documentation
AliHLTTPCClusterModel *cluster;
- Int_t timeo,pado,chargeo,padshapeo,timeshapeo;
- timeo=pado=chargeo=padshapeo=timeshapeo=0;
+ Int_t chargeo,padshapeo,timeshapeo;
+ chargeo=padshapeo=timeshapeo=0;
unsigned trackCnt=0;
while( !EndOfBitInput() )
{
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