EGammaPacker.cc

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#include "FWCore/Framework/interface/Event.h"
#include "EventFilter/L1TRawToDigi/plugins/PackerFactory.h"

#include "CaloTokens.h"

#include "L1TStage2Layer2Constants.h"
#include "EGammaPacker.h"

namespace l1t {
namespace stage2 {
   Blocks
   EGammaPacker::pack(const edm::Event& event, const PackerTokens* toks)
   {
      edm::Handle<EGammaBxCollection> egs;
      event.getByToken(static_cast<const CommonTokens*>(toks)->getEGammaToken(), egs);

      std::vector<uint32_t> load1, load2;

      int nBx = 0;
      for (int i = egs->getFirstBX(); i <= egs->getLastBX(); ++i) {
    
    for (auto j = egs->begin(i); j != egs->end(i); ++j) {

      uint32_t packed_eta = abs(j->hwEta()) & 0x7F;
      if (j->hwEta() < 0){
        packed_eta = (128 - packed_eta) | 1<<7;
      }

      uint32_t word =                   \
	    std::min(j->hwPt(), 0x1FF) |
        packed_eta << 9 |
        (j->hwPhi() & 0xFF) << 17 |
        (j->hwIso() & 0x3) << 25 |
        (j->hwQual() & 0x7) << 27;
      
      //Depending on the number, push onto the appropriate link
      if ( load1.size() - nBx*l1t::stage2::layer2::demux::nEGPerLink   < l1t::stage2::layer2::demux::nEGPerLink) load1.push_back(word);
      else load2.push_back(word);
      
    }
    
    // push zeroes if not enough EG; must do this for each BX and each link                                    
    while (load1.size() - nBx*l1t::stage2::layer2::demux::nOutputFramePerBX <l1t::stage2::layer2::demux::nOutputFramePerBX) load1.push_back(0);
    while (load2.size() - nBx*l1t::stage2::layer2::demux::nOutputFramePerBX <l1t::stage2::layer2::demux::nOutputFramePerBX) load2.push_back(0);
    
    nBx++;
    
      }
      

      return {Block(b1_, load1), Block(b2_, load2)};
      
   }
  
}
}

DEFINE_L1T_PACKER(l1t::stage2::GTEGammaPacker);
DEFINE_L1T_PACKER(l1t::stage2::CaloEGammaPacker);