Load pythia libraries.

[u/mrichter/AliRoot.git] / ACORDE / AliACORDERawStream.cxx

/**************************************************************************\r
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
 *                                                                        *\r
 * Author: The ALICE Off-line Project.                                    *\r
 * Contributors are mentioned in the code where appropriate.              *\r
 *                                                                        *\r
 * Permission to use, copy, modify and distribute this software and its   *\r
 * documentation strictly for non-commercial purposes is hereby granted   *\r
 * without fee, provided that the above copyright notice appears in all   *\r
 * copies and that both the copyright notice and this permission notice   *\r
 * appear in the supporting documentation. The authors make no claims     *\r
 * about the suitability of this software for any purpose. It is          *\r
 * provided "as is" without express or implied warranty.                  *\r
 **************************************************************************/\r
\r
///////////////////////////////////////////////////////////////////////////////\r
//                                                                           //\r
//  Reads ACORDE DDL raw data from raw data stream                           //\r
//                                                                           //\r
///////////////////////////////////////////////////////////////////////////////\r
\r
#include "AliACORDERawStream.h"\r
#include "AliRawReader.h"\r
#include "AliLog.h"\r
#include "AliDAQ.h"\r
\r
ClassImp(AliACORDERawStream)\r
\r
//_____________________________________________________________________________\r
AliACORDERawStream::AliACORDERawStream(AliRawReader* rawReader) :\r
  fRawReader(rawReader),\r
  fPosition(-1),\r
  fData(NULL),\r
  fDataSize(0)\r
{\r
  //\r
  // Create an object to read ACORDE raw data\r
  //\r
  // Created:      04 Feb 2008  Mario Sitta\r
  //\r
\r
  // Select the raw data corresponding to the ACORDE detector id\r
//  fRawReader->Reset();\r
  AliDebug(1,Form("Selecting raw data for detector %d",AliDAQ::DetectorID("ACORDE")));\r
  fRawReader->Select("ACORDE");\r
\r
}\r
\r
//_____________________________________________________________________________\r
AliACORDERawStream::AliACORDERawStream(const AliACORDERawStream &r) :\r
  TObject(),\r
  fRawReader(r.fRawReader),\r
  fPosition(-1),\r
  fData(NULL),\r
  fDataSize(0)\r
{\r
  // Simple copy constructor\r
  ((AliACORDERawStream &) r).Copy(*this);\r
}\r
\r
//_____________________________________________________________________________\r
AliACORDERawStream::~AliACORDERawStream()\r
{\r
  // Default destructor\r
}\r
\r
//_____________________________________________________________________________\r
AliACORDERawStream &AliACORDERawStream::operator=(const AliACORDERawStream &r)\r
{\r
  // Simple operator=\r
  if (this != &r)  ((AliACORDERawStream &) r).Copy(*this);\r
  return *this;\r
}\r
\r
//_____________________________________________________________________________\r
void AliACORDERawStream::Reset()\r
{\r
  //\r
  // Reset the raw stream parameters\r
  //\r
  // Input:\r
  //\r
  // Output:\r
  //\r
  // Created:      04 Feb 2008  Mario Sitta\r
  //\r
\r
  fPosition = -1;\r
  fData = NULL;\r
\r
  if (fRawReader) fRawReader->Reset();\r
}\r
\r
//_____________________________________________________________________________\r
Bool_t AliACORDERawStream::Next()\r
{\r
  //\r
  // Read next digit from the ACORDE raw data stream;\r
  // return kFALSE in case of error or no digits left\r
  //\r
  // Input:\r
  //\r
  // Output:\r
  //\r
  // Created:      04 Feb 2008  Mario Sitta\r
  //\r
\r
  if (fPosition >= 0) return kFALSE;\r
\r
  if (!fRawReader->ReadNextData(fData)) return kFALSE;\r
  if (fRawReader->GetDataSize() == 0) return kFALSE;\r
\r
  fDataSize = fRawReader->GetDataSize();\r
  if (fDataSize != 16) {\r
    fRawReader->AddFatalErrorLog(kRawDataSizeErr,Form("size %d != 5488",fDataSize));\r
    AliWarning(Form("Wrong ACORDE raw data size: %d, expected 5488 bytes!",fDataSize));\r
    return kFALSE;\r
  }\r
\r
  fPosition = 0;\r
\r
  for (Int_t i=0; i<4; i++)\r
    fWord[i] = GetNextWord();\r
\r
  return kTRUE;\r
}\r
\r
//_____________________________________________________________________________\r
UInt_t AliACORDERawStream::GetWord(Int_t index) const\r
{\r
  //\r
  // Returns the ``index'' word from ACORDE raw data.\r
  //\r
  // Input:\r
  //         index : the index of the requested word\r
  // Output:\r
  //         word  : the 32 bit ``index'' word\r
  //\r
  // Created:      12 Feb 2008  Mario Sitta\r
  //\r
\r
  if (index < 0 || index > 3) {\r
    AliWarning(Form("Wrong word index %d, returning 0",index));\r
    return 0;\r
  } else {\r
    return fWord[index];\r
  }\r
  \r
}\r
\r
//_____________________________________________________________________________\r
UInt_t AliACORDERawStream::GetNextWord()\r
{\r
  //\r
  // Returns the next 32 bit word inside the raw data payload.\r
  // The method is supposed to be endian (platform) independent.\r
  //\r
  // Input:\r
  //\r
  // Output:\r
  //         word : a 32 bit word containing the data\r
  //\r
  // Created:      04 Feb 2008  Mario Sitta\r
  //\r
\r
  if (!fData || fPosition < 0)\r
    AliFatal("Raw data payload buffer is not yet initialized !");\r
\r
  UInt_t word = 0;\r
  word |= fData[fPosition++];\r
  word |= fData[fPosition++] << 8;\r
  word |= fData[fPosition++] << 16;\r
  word |= fData[fPosition++] << 24;\r
\r
  return word;\r
}\r
\r
//_____________________________________________________________________________\r
UShort_t AliACORDERawStream::GetNextShort()\r
{\r
  //\r
  // Returns the next 16 bit word inside the raw data payload.\r
  // The method is supposed to be endian (platform) independent.\r
  //\r
  // Input:\r
  //\r
  // Output:\r
  //         word : a 16 bit word containing the data\r
  //\r
  // Created:      04 Feb 2008  Mario Sitta\r
  //\r
\r
  if (!fData || fPosition < 0) AliFatal("Raw data payload buffer is not yet initialized !");\r
\r
  UShort_t word = 0;\r
  word |= fData[fPosition++];\r
  word |= fData[fPosition++] << 8;\r
\r
  return word;\r
}\r
\r