/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/EventFilter/CSCRawToDigi/src/CSCEventData.cc

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#include "EventFilter/CSCRawToDigi/interface/CSCEventData.h"
#include "EventFilter/CSCRawToDigi/interface/CSCCFEBData.h"
#include "DataFormats/CSCDigi/interface/CSCStripDigi.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "EventFilter/CSCRawToDigi/src/cscPackerCompare.h"
#include <iostream>
#include <iterator>
#include "EventFilter/CSCRawToDigi/src/bitset_append.h"
#include "FWCore/Utilities/interface/Exception.h"


bool CSCEventData::debug = false;

CSCEventData::CSCEventData(int chamberType) : 
  theDMBHeader(), 
  theALCTHeader(0), 
  theAnodeData(0),
  theALCTTrailer(0),
  theTMBData(0),
  theDMBTrailer(),
  theChamberType(chamberType),
  alctZSErecovered(0),
  zseEnable(0)
{
  
  for(unsigned i = 0; i < 5; ++i) {
    theCFEBData[i] = 0;
  }
}


CSCEventData::CSCEventData(unsigned short * buf){
  unpack_data(buf);
}


void CSCEventData::unpack_data(unsigned short * buf)
{
  // zero everything
  init();
  unsigned short * pos = buf;
  if(debug)    {
    LogTrace ("CSCEventData|CSCRawToDigi") << "The event data ";
    for(int i = 0; i < 16; ++i){
      LogTrace ("CSCEventData|CSCRawToDigi") << std::hex << pos[i ] << " ";
    }
    }
   
  theDMBHeader = CSCDMBHeader(pos);
  if(!(theDMBHeader.check())) {
    LogTrace ("CSCEventData|CSCRawToDigi")  << "Bad DMB Header??? " << " first four words: ";
    for(int i = 0; i < 4; ++i){
      LogTrace ("CSCEventData|CSCRawToDigi") << std::hex << pos[i ] << " ";
    }
  }
  
      
  if (debug) {
    LogTrace ("CSCEventData|CSCRawToDigi") << "nalct = " << nalct();
    LogTrace ("CSCEventData|CSCRawToDigi") << "nclct = " << nclct();
  }

  if (debug)  {
    LogTrace ("CSCEventData|CSCRawToDigi") << "size in words of DMBHeader" << theDMBHeader.sizeInWords();
    LogTrace ("CSCEventData|CSCRawToDigi") << "sizeof(DMBHeader)" << sizeof(theDMBHeader); 
  }
   
  pos += theDMBHeader.sizeInWords();
  
  if (nalct() ==1)  {
    if (isALCT(pos)) {//checking for ALCTData
      theALCTHeader = new CSCALCTHeader( pos );
      if(!theALCTHeader->check()){  
        LogTrace ("CSCEventData|CSCRawToDigi") <<"+++WARNING: Corrupt ALCT data - won't attempt to decode";
      } 
      else {
        //dataPresent|=0x40;
        pos += theALCTHeader->sizeInWords(); //size of the header
        //fill ALCT Digis
        theALCTHeader->ALCTDigis();
 
        //theAnodeData = new CSCAnodeData(*theALCTHeader, pos);
        
        
        /*
        std::cout << " ****The ALCT information from CSCEventData.cc (begin)**** " << std::endl; ///to_rm
        std::cout << " alctHeader2007().size: " << theALCTHeader->alctHeader2007().sizeInWords() << std::endl; ///to_rm
        std::cout << " ALCT Header Content: " << std::endl; ///to_rm
        for(int k=0; k<theALCTHeader->sizeInWords(); k+=4){
           std::cout << std::hex << theALCTHeader->data()[k+3] 
                     << " " << theALCTHeader->data()[k+2]
                     << " " << theALCTHeader->data()[k+1]
                     << " " << theALCTHeader->data()[k] << std::dec << std::endl;
           }
         */
        //std::cout << " ALCT Size: " << theAnodeData->sizeInWords() << std::endl;
        // int zseEnable = 0;
        zseEnable = (theALCTHeader->data()[5] & 0x1000) >> 12;
        //std::cout << " ZSE Bit: " <<  zseEnable << std::endl; /// to_rm
        int sizeInWord_ZSE =0;

        //alctZSErecovered = new unsigned short [theAnodeData->sizeInWords()];

        if(zseEnable){
        int  nWGs_per_layer = ( (theALCTHeader->data()[6]&0x0007) + 1 ) * 16 ;
        int nWG_round_up   = int(nWGs_per_layer/12)+(nWGs_per_layer%3?1:0);
        //std::cout << " Words per layer: " << nWG_round_up << std::endl; ///to_rm
        unsigned short * posZSE = pos;
        std::vector<unsigned short> alctZSErecoveredVector;
        alctZSErecoveredVector.clear();

        //alctZSErecovered = new unsigned short [theAnodeData->sizeInWords()];
        //delete [] alctZSErecovered;
        //std::cout << " ALCT Buffer with ZSE: " << std::endl; ///to_rm
        //unsigned short * posZSEdebug = pos; ///to_rm

        /*
        while (*posZSEdebug != 0xDE0D){
              unsigned short d = *posZSEdebug;
              unsigned short c = *(posZSEdebug+1);
              unsigned short b = *(posZSEdebug+2);
              unsigned short a = *(posZSEdebug+3);
              posZSEdebug+=4;
              std::cout << std::hex << a << " " << b << " " << c << " " << d << std::dec << std::endl;
        }
        */

        int alctZSErecoveredPos=0;
        while (*posZSE != 0xDE0D){              
              if( (*posZSE == 0x1000) && (*posZSE != 0x3000)){
                for(int j=0; j<nWG_round_up; j++){
                   alctZSErecoveredVector.push_back(0x0000);
                }
                alctZSErecoveredPos+=nWG_round_up;
              }
              else {
              alctZSErecoveredVector.push_back(*posZSE);
              ++alctZSErecoveredPos;
              }               
              posZSE++;
              sizeInWord_ZSE++;
        }

        alctZSErecovered = new unsigned short [alctZSErecoveredVector.size()];
        
        for(int l=0; l<(int)alctZSErecoveredVector.size(); l++){
            alctZSErecovered[l]=alctZSErecoveredVector[l];
        }
 
        unsigned short *posRecovered = alctZSErecovered;
        theAnodeData = new CSCAnodeData(*theALCTHeader, posRecovered);
        
        /*
        std::cout << " The ALCT payload recovered: " << std::endl;
        for(int k=0; k<theAnodeData->sizeInWords(); k+=4){
           std::cout << std::hex << alctZSErecovered[k+3] << " "
                                 << alctZSErecovered[k+2] << " "
                                 << alctZSErecovered[k+1] << " "
                                 << alctZSErecovered[k] << std::dec << std::endl;
        }
        */
        //delete [] alctZSErecovered;
        //std::cout << " ALCT SizeZSE : " << sizeInWord_ZSE << std::endl; ///to_rm
        //std::cout << " ALCT SizeZSE Recovered: " << alctZSErecoveredPos << std::endl; ///to_rm
        //std::cout << " ALCT Size Expected: " << theAnodeData->sizeInWords() << std::endl; ///to_rm
        pos +=sizeInWord_ZSE;
        }
        else{
        //pos +=sizeInWord_ZSE;
        theAnodeData = new CSCAnodeData(*theALCTHeader, pos);
        pos += theAnodeData->sizeInWords(); // size of the data is determined during unpacking 
        }       
        //std::cout << " ****The ALCT information from CSCEventData.cc (end)**** " << std::endl; ///to_rm
        theALCTTrailer = new CSCALCTTrailer( pos );
        pos += theALCTTrailer->sizeInWords();
      }
    } 
    else {
      LogTrace ("CSCEventData|CSCRawToDigi") << "Error:nalct reported but no ALCT data found!!!";
    }
  }

  if (nclct() ==1)  {
    if (isTMB(pos)) {
      //dataPresent|=0x20;
      theTMBData = new CSCTMBData(pos);  //fill all TMB data
      pos += theTMBData->size();
    }
    else {
      LogTrace ("CSCEventData|CSCRawToDigi") << "Error:nclct reported but no TMB data found!!!";
    }
  }

  //now let's try to find and unpack the DMBTrailer
  bool dmbTrailerReached= false;
  for (int i=0; i<12000; ++i) {//8000 max for cfeb + 1980ALCT + 287 TMB
    dmbTrailerReached =
      (*(i+pos) & 0xF000) == 0xF000 && (*(i+pos+1) & 0xF000) == 0xF000
      && (*(i+pos+2) & 0xF000) == 0xF000 && (*(i+pos+3) & 0xF000) == 0xF000
      && (*(i+pos+4) & 0xF000) == 0xE000 && (*(i+pos+5) & 0xF000) == 0xE000
      && (*(i+pos+6) & 0xF000) == 0xE000 && (*(i+pos+7) & 0xF000) == 0xE000;
    if (dmbTrailerReached) {
      theDMBTrailer = *( (CSCDMBTrailer *) (pos+i) );
      break;
    }
  }
  if (dmbTrailerReached) {
    for(int icfeb = 0; icfeb < 5; ++icfeb)  {
      theCFEBData[icfeb] = 0;
      int cfeb_available = theDMBHeader.cfebAvailable(icfeb);
      unsigned int cfebTimeout = theDMBTrailer.cfeb_starttimeout | theDMBTrailer.cfeb_endtimeout;    
      //cfeb_available cannot be trusted - need additional verification!
      if ( cfeb_available==1 )   {
        if ((cfebTimeout >> icfeb) & 1) {
          if (debug) LogTrace ("CSCEventData|CSCRawToDigi") << "CFEB Timed out! ";
        } else {
          //dataPresent|=(0x1>>icfeb);
          // Fill CFEB data and convert it into cathode digis
          theCFEBData[icfeb] = new CSCCFEBData(icfeb, pos);
          pos += theCFEBData[icfeb]->sizeInWords();
        }
      }
    }   
    pos += theDMBTrailer.sizeInWords();
    size_ = pos-buf;
  }
  else {
    LogTrace ("CSCEventData|CSCRawToDigi") << "Critical Error: DMB Trailer was not found!!! ";
  }
}

bool CSCEventData::isALCT(const short unsigned int * buf) {
  return (((buf[0]&0xFFFF)==0xDB0A)||(((buf[0]&0xF800)==0x6000)&&((buf[1]&0xF800)==0)));
}

bool CSCEventData::isTMB(const short unsigned int * buf) {
  return ((buf[0]&0xFFF)==0xB0C);
}



CSCEventData::CSCEventData(const CSCEventData & data) {
  copy(data);
}

CSCEventData::~CSCEventData() {
  destroy();
}


CSCEventData CSCEventData::operator=(const CSCEventData & data) {
  // check for self-assignment before destructing
  if(&data != this) destroy();
  copy(data);
  return *this;
}


void CSCEventData::init() {
  //dataPresent = 0;
  theALCTHeader = 0;
  theAnodeData = 0;
  theALCTTrailer = 0;
  theTMBData = 0;
  for(int icfeb = 0; icfeb < 5; ++icfeb) {
    theCFEBData[icfeb] = 0;
  }
  alctZSErecovered=0;
  zseEnable=0;
}


void CSCEventData::copy(const CSCEventData & data) {
  init();
  theDMBHeader  = data.theDMBHeader;
  theDMBTrailer = data.theDMBTrailer;
  if(data.theALCTHeader != NULL)
    theALCTHeader  = new CSCALCTHeader(*(data.theALCTHeader));
  if(data.theAnodeData != NULL) 
    theAnodeData   = new CSCAnodeData(*(data.theAnodeData));
  if(data.theALCTTrailer != NULL) 
    theALCTTrailer = new CSCALCTTrailer(*(data.theALCTTrailer));
  if(data.theTMBData != NULL) 
    theTMBData     = new CSCTMBData(*(data.theTMBData));
  for(int icfeb = 0; icfeb < 5; ++icfeb) {
    theCFEBData[icfeb] = 0;
    if(data.theCFEBData[icfeb] != NULL) 
      theCFEBData[icfeb] = new CSCCFEBData(*(data.theCFEBData[icfeb]));
  }   
  size_  = data.size_;
  theChamberType = data.theChamberType;
  
}


void CSCEventData::destroy() {
  if(zseEnable){
  delete [] alctZSErecovered;
  }
  delete theALCTHeader;
  delete theAnodeData;
  delete theALCTTrailer;
  delete theTMBData;
  for(int icfeb = 0; icfeb < 5; ++icfeb) {
    delete theCFEBData[icfeb];
  }
/*
  std::cout << "Before delete alctZSErecovered " << std::endl;
  delete [] alctZSErecovered;
  std::cout << "After delete alctZSErecovered " << std::endl;
*/  
}


std::vector<CSCStripDigi> CSCEventData::stripDigis(const CSCDetId & idlayer) const {
  std::vector<CSCStripDigi> result;
  for(unsigned icfeb = 0; icfeb < 5; ++icfeb){
    std::vector<CSCStripDigi> newDigis = stripDigis(idlayer, icfeb);
    result.insert(result.end(), newDigis.begin(), newDigis.end());
  }
  return result;
}


std::vector<CSCStripDigi> CSCEventData::stripDigis(unsigned idlayer, unsigned icfeb) const {
  //  assert(ilayer > 0 && ilayer <= 6); // off because now idlayer is raw cscdetid
  std::vector<CSCStripDigi> result;
  if(theCFEBData[icfeb] != NULL) {
    std::vector<CSCStripDigi> newDigis = theCFEBData[icfeb]->digis(idlayer);
    result.insert(result.end(), newDigis.begin(), newDigis.end());
  }
  
  return result;
}


std::vector<CSCWireDigi> CSCEventData::wireDigis(unsigned ilayer) const {
  if(theAnodeData == 0)    {
    return std::vector<CSCWireDigi>();
  } 
  else    {
    return theAnodeData->wireDigis(ilayer);
  }
}


std::vector < std::vector<CSCStripDigi> > CSCEventData::stripDigis() const {
  std::vector < std::vector<CSCStripDigi> > result;
  for (int layer = 1; layer <= 6; ++layer) {
    std::vector<CSCStripDigi> digis = stripDigis(layer);
    result.push_back(digis);
  }
  return result;
}

std::vector < std::vector<CSCWireDigi> > CSCEventData::wireDigis() const {
  std::vector < std::vector<CSCWireDigi> > result;
  for (int layer = 1; layer <= 6; ++layer)     {
    result.push_back(wireDigis(layer));
  }
  return result;
}


CSCCFEBData* CSCEventData::cfebData(unsigned icfeb) const {
  return theCFEBData[icfeb];
}


CSCALCTHeader* CSCEventData::alctHeader() const{
  if(nalct() == 0) throw cms::Exception("No ALCT for this chamber");
  return theALCTHeader;
}

CSCALCTTrailer * CSCEventData::alctTrailer() const{
  if(nalct() == 0) throw cms::Exception("No ALCT for this chamber");
  return theALCTTrailer;
}


CSCAnodeData * CSCEventData::alctData() const {
  if(nalct() == 0) throw cms::Exception("No ALCT for this chamber");
  return theAnodeData;
}

CSCTMBData * CSCEventData::tmbData() const {
  if(nclct() == 0) throw cms::Exception("No CLCT for this chamber");
  return theTMBData;
}


CSCTMBHeader * CSCEventData::tmbHeader() const {
  if((nclct() == 0)||(tmbData()==NULL)) throw cms::Exception("No CLCT header for this chamber");
  return tmbData()->tmbHeader();
}

CSCCLCTData * CSCEventData::clctData() const {
  if((nclct() == 0)||(tmbData()==NULL)) throw cms::Exception("No CLCT data for this chamber");
  return tmbData()->clctData();
}


void CSCEventData::setEventInformation(int bxnum, int lvl1num) {
  theDMBHeader.setBXN(bxnum);
  theDMBHeader.setL1A(lvl1num);
  if(theALCTHeader)     {
    theALCTHeader->setEventInformation(theDMBHeader);
  }
  if(theTMBData)  {
    theTMBData->tmbHeader()->setEventInformation(theDMBHeader);
  }
}
    

void CSCEventData::checkALCTClasses() {
  if(theAnodeData == NULL)
  {
    assert(theChamberType>0);
    theALCTHeader = new CSCALCTHeader(theChamberType);
    theALCTHeader->setEventInformation(theDMBHeader);
    theAnodeData = new CSCAnodeData(*theALCTHeader);
    int size = theALCTHeader->sizeInWords() + theAnodeData->sizeInWords() + CSCALCTTrailer::sizeInWords();
    theALCTTrailer = new CSCALCTTrailer(size, theALCTHeader->alctFirmwareVersion());
    // set data available flag
    theDMBHeader.addNALCT();
  }
}


void CSCEventData::checkTMBClasses() 
{
  if(theTMBData == NULL)    {
    theTMBData = new CSCTMBData();
    theTMBData->tmbHeader()->setEventInformation(theDMBHeader);
    theDMBHeader.addNCLCT();
  }
}


void CSCEventData::add(const CSCStripDigi & digi, int layer) {
  //@@ need special logic here for ME11
  unsigned cfeb = (digi.getStrip()-1)/16;
  bool sixteenSamples = false;
  if (digi.getADCCounts().size()==16) sixteenSamples = true;  
  if(theCFEBData[cfeb] == 0)    {
    theCFEBData[cfeb] = new CSCCFEBData(cfeb, sixteenSamples);
    theDMBHeader.addCFEB(cfeb);
  }
  theCFEBData[cfeb]->add(digi, layer);
}


void CSCEventData::add(const CSCWireDigi & digi, int layer) {
  checkALCTClasses();
  theAnodeData->add(digi, layer);
  theALCTHeader->setDAVForChannel(digi.getWireGroup());
}

void CSCEventData::add(const CSCComparatorDigi & digi, int layer) {
  checkTMBClasses();
  theTMBData->clctData()->add(digi, layer);
}



void CSCEventData::add(const std::vector<CSCALCTDigi> & digis) {
  checkALCTClasses();
  theALCTHeader->add(digis);
}


void CSCEventData::add(const std::vector<CSCCLCTDigi> & digis) {
  checkTMBClasses();
  theTMBData->tmbHeader()->add(digis);
}

void CSCEventData::add(const std::vector<CSCCorrelatedLCTDigi> & digis) {
  checkTMBClasses();
  theTMBData->tmbHeader()->add(digis);
}




std::ostream & operator<<(std::ostream & os, const CSCEventData & evt) {
  for(int ilayer = 1; ilayer <= 6; ++ilayer)     {
    std::vector<CSCStripDigi> stripDigis = evt.stripDigis(ilayer);
    //copy(stripDigis.begin(), stripDigis.end(), std::ostream_iterator<CSCStripDigi>(os, "\n"));
    //print your scas here
    std::vector<CSCWireDigi> wireDigis = evt.wireDigis(ilayer);
    //copy(wireDigis.begin(), wireDigis.end(), std::ostream_iterator<CSCWireDigi>(os, "\n"));
  }
  return os;
}

boost::dynamic_bitset<> CSCEventData::pack() {
  boost::dynamic_bitset<> result = bitset_utilities::ushortToBitset( theDMBHeader.sizeInWords()*16, 
                                                                     theDMBHeader.data());

  if(theALCTHeader != NULL)     {
    boost::dynamic_bitset<> alctHeader = theALCTHeader->pack();
    result = bitset_utilities::append(result, alctHeader);
  }
  if(theAnodeData != NULL) {
    boost::dynamic_bitset<> anodeData = bitset_utilities::ushortToBitset (theAnodeData->sizeInWords()*16,
                                                                          theAnodeData->data());
    result = bitset_utilities::append(result, anodeData);
  }
  if(theALCTTrailer != NULL)  {
    boost::dynamic_bitset<> alctTrailer =bitset_utilities::ushortToBitset(theALCTTrailer->sizeInWords()*16,
                                                                          theALCTTrailer->data());
    result = bitset_utilities::append(result, alctTrailer);
  }
  if(theTMBData != NULL)  {
    result  = bitset_utilities::append(result, theTMBData->pack());
  }

  for(int icfeb = 0;  icfeb < 5;  ++icfeb)  {
    if(theCFEBData[icfeb] != NULL){
      boost::dynamic_bitset<> cfebData = bitset_utilities::ushortToBitset(theCFEBData[icfeb]->sizeInWords()*16,
                                                                          theCFEBData[icfeb]->data());
      result = bitset_utilities::append(result, cfebData);
    }
  }
  
  boost::dynamic_bitset<> dmbTrailer = bitset_utilities::ushortToBitset( theDMBTrailer.sizeInWords()*16,
                                                                         theDMBTrailer.data());
  result = bitset_utilities::append(result, dmbTrailer);
  return result;
}


void CSCEventData::selfTest() {
  CSCEventData chamberData(5);
  CSCDetId detId(1, 3, 2, 1, 3);
  std::vector<CSCCLCTDigi> clctDigis;
  // Both CLCTs are read-out at the same (pre-trigger) bx, so the last-but-one
  // arguments in both digis must be the same.
  clctDigis.push_back(CSCCLCTDigi(1, 1, 4, 1, 0, 30, 3, 2, 1)); // valid for 2007
  clctDigis.push_back(CSCCLCTDigi(1, 1, 2, 1, 1, 31, 1, 2, 2));
  
  // BX of LCT (8th argument) is 1-bit word (the least-significant bit
  // of ALCT's bx).
  std::vector<CSCCorrelatedLCTDigi> corrDigis;
  corrDigis.push_back(CSCCorrelatedLCTDigi(1, 1, 2, 10, 98, 5, 0, 1, 0, 0, 0, 0));
  corrDigis.push_back(CSCCorrelatedLCTDigi(2, 1, 2, 20, 15, 9, 1, 0, 0, 0, 0, 0));

  chamberData.add(clctDigis);
  chamberData.add(corrDigis);

  CSCWireDigi wireDigi(10, 6);
  CSCComparatorDigi comparatorDigi(30, 1, 6);
  chamberData.add(wireDigi, 3);
  chamberData.add(comparatorDigi, 3);

  CSCEventData newData = cscPackAndUnpack(chamberData);

  std::vector<CSCCLCTDigi> clcts = newData.tmbHeader()->CLCTDigis(detId.rawId());
  assert(cscPackerCompare(clcts[0],clctDigis[0]));
  assert(cscPackerCompare(clcts[1],clctDigis[1]));

  std::vector<CSCCorrelatedLCTDigi> lcts = newData.tmbHeader()->CorrelatedLCTDigis(detId.rawId());
  assert(cscPackerCompare(lcts[0], corrDigis[0]));
  assert(cscPackerCompare(lcts[1], corrDigis[1]));

  // test strip digis
  CSCDetId me1adet1(1, 1, 1, 4, 1);
  CSCDetId me1bdet1(1, 1, 4, 4, 6);
  CSCDetId me1adet2(2, 1, 1, 4, 2);
  CSCDetId me1bdet2(2, 1, 4, 4, 5);

  std::vector<int> sca(16, 600);
  std::vector<unsigned short> overflow(16, 0), overlap(16, 0), errorfl(16,0);
  CSCStripDigi me1a(5, sca, overflow, overlap, errorfl);
  CSCStripDigi me1b(8, sca, overflow, overlap, errorfl);

  CSCEventData forward(1);
  CSCEventData backward(1);
  
  forward.add(me1a, me1adet1.layer());
  forward.add(me1b, me1bdet1.layer());
  backward.add(me1a, me1adet2.layer());
  backward.add(me1b, me1adet2.layer());
  std::vector<CSCStripDigi> me1afs = forward.stripDigis(me1adet1);
  std::vector<CSCStripDigi> me1bfs = forward.stripDigis(me1bdet1);
  std::vector<CSCStripDigi> me1abs = backward.stripDigis(me1adet2);
  std::vector<CSCStripDigi> me1bbs = backward.stripDigis(me1bdet2);
  //FIXME The current code works under the assumption that ME11 and ME1A
  // go into separate EventData.  They need to be combined.
  assert(me1afs.size() == 16);
  assert(me1bfs.size() == 16);
  assert(me1abs.size() == 16);
  assert(me1bbs.size() == 16);

  assert(me1afs[4].getStrip() == 5);
  assert(me1bfs[7].getStrip() == 8);
  assert(me1abs[4].getStrip() == 5);
  assert(me1bbs[7].getStrip() == 8);
  assert(me1afs[4].pedestal() == 600);
  assert(me1bfs[7].pedestal() == 600);
  assert(me1abs[4].pedestal() == 600);
  assert(me1bbs[7].pedestal() == 600);


}