/data/refman/pasoursint/CMSSW_5_2_7_hltpatch2/src/CalibCalorimetry/HcalTPGAlgos/src/HcaluLUTTPGCoder.cc

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#include <iostream>
#include <fstream>
#include <cmath>
#include <string>
#include "CalibCalorimetry/HcalTPGAlgos/interface/HcaluLUTTPGCoder.h"
#include "Geometry/HcalTowerAlgo/src/HcalHardcodeGeometryData.h"
#include "CalibFormats/HcalObjects/interface/HcalCoderDb.h"
#include "CalibFormats/HcalObjects/interface/HcalCalibrations.h"
#include "CalibFormats/HcalObjects/interface/HcalDbService.h"
#include "Geometry/HcalTowerAlgo/interface/HcalTrigTowerGeometry.h"
#include "Geometry/Records/interface/IdealGeometryRecord.h"
#include "Geometry/CaloGeometry/interface/CaloGeometry.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Utilities/interface/Exception.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "CalibCalorimetry/CaloTPG/src/CaloTPGTranscoderULUT.h"
#include "CondFormats/HcalObjects/interface/HcalL1TriggerObjects.h"
#include "CondFormats/HcalObjects/interface/HcalL1TriggerObject.h"
#include "CalibCalorimetry/HcalAlgos/interface/HcalDbASCIIIO.h"
#include "CalibCalorimetry/HcalTPGAlgos/interface/XMLProcessor.h"
#include "CalibCalorimetry/HcalTPGAlgos/interface/LutXml.h"

const float HcaluLUTTPGCoder::lsb_=1./16;

HcaluLUTTPGCoder::HcaluLUTTPGCoder() : LUTGenerationMode_(true), bitToMask_(0),
                                       inputLUT_(nluts, Lut(INPUT_LUT_SIZE, 0)),
                                       gain_(nluts, 0.), ped_ (nluts, 0.){
}

void HcaluLUTTPGCoder::compress(const IntegerCaloSamples& ics, const std::vector<bool>& featureBits, HcalTriggerPrimitiveDigi& tp) const {
   throw cms::Exception("PROBLEM: This method should never be invoked!");
}

HcaluLUTTPGCoder::~HcaluLUTTPGCoder() {
}

int HcaluLUTTPGCoder::getLUTId(HcalSubdetector id, int ieta, int iphi, int depth) const {
   int detid = 0;
   if (id == HcalEndcap) detid = 1;
   else if (id == HcalForward) detid = 2;
   return iphi + 72 * ((ieta + 41) + 83 * (depth + 3 * detid)) - 7777;
}

int HcaluLUTTPGCoder::getLUTId(uint32_t rawid) const {
   HcalDetId detid(rawid);
   return getLUTId(detid.subdet(), detid.ieta(), detid.iphi(), detid.depth());
}

int HcaluLUTTPGCoder::getLUTId(const HcalDetId& detid) const {
   return getLUTId(detid.subdet(), detid.ieta(), detid.iphi(), detid.depth());
}

void HcaluLUTTPGCoder::update(const char* filename, bool appendMSB){

   std::ifstream file(filename, std::ios::in);
   assert(file.is_open());

   std::vector<HcalSubdetector> subdet;
   std::string buffer;

   // Drop first (comment) line
   std::getline(file, buffer);
   std::getline(file, buffer);

   unsigned int index = buffer.find("H", 0);
   while (index < buffer.length()){
      std::string subdetStr = buffer.substr(index, 2);
      if (subdetStr == "HB") subdet.push_back(HcalBarrel);
      else if (subdetStr == "HE") subdet.push_back(HcalEndcap);
      else if (subdetStr == "HF") subdet.push_back(HcalForward);
      //TODO Check subdet
      //else exception
      index += 2;
      index = buffer.find("H", index);
   }

   // Get upper/lower ranges for ieta/iphi/depth
   size_t nCol = subdet.size();
   std::vector<int> ietaU;
   std::vector<int> ietaL;
   std::vector<int> iphiU;
   std::vector<int> iphiL;
   std::vector<int> depU;
   std::vector<int> depL;
   std::vector< Lut > lutFromFile(nCol);
   LutElement lutValue;

   for (size_t i=0; i<nCol; ++i) {
      int ieta;
      file >> ieta;
      ietaL.push_back(ieta);
   }

   for (size_t i=0; i<nCol; ++i) {
      int ieta;
      file >> ieta;
      ietaU.push_back(ieta);
   }

   for (size_t i=0; i<nCol; ++i) {
      int iphi;
      file >> iphi;
      iphiL.push_back(iphi);
   }

   for (size_t i=0; i<nCol; ++i) {
      int iphi;
      file >> iphi;
      iphiU.push_back(iphi);
   }

   for (size_t i=0; i<nCol; ++i) {
      int dep;
      file >> dep;
      depL.push_back(dep);
   }

   for (size_t i=0; i<nCol; ++i) {
      int dep;
      file >> dep;
      depU.push_back(dep);
   }

   // Read Lut Entry
   for (size_t i=0; file >> lutValue; i = (i+1) % nCol){
      lutFromFile[i].push_back(lutValue);
   }

   // Check lut size
   for (size_t i=0; i<nCol; ++i) assert(lutFromFile[i].size() == INPUT_LUT_SIZE);

   for (size_t i=0; i<nCol; ++i){
      for (int ieta = ietaL[i]; ieta <= ietaU[i]; ++ieta){
         for (int iphi = iphiL[i]; iphi <= iphiU[i]; ++iphi){
            for (int depth = depL[i]; depth <= depU[i]; ++depth){
               if (!HcalDetId::validDetId(subdet[i], ieta, iphi, depth)) continue;
               HcalDetId id(subdet[i], ieta, iphi, depth);
               int lutId = getLUTId(id);
               for (size_t adc = 0; adc < INPUT_LUT_SIZE; ++adc){
                  if (appendMSB){
                     // Append FG bit LUT to MSB
                     // MSB = Most Significant Bit = bit 10
                     // Overwrite bit 10
                     LutElement msb = (lutFromFile[i][adc] != 0 ? 0x400 : 0);
                     inputLUT_[lutId][adc] = (msb | (inputLUT_[lutId][adc] & 0x3FF));
                  }
                  else inputLUT_[lutId][adc] = lutFromFile[i][adc];
               }// for adc
            }// for depth
         }// for iphi
      }// for ieta
   }// for nCol
}

void HcaluLUTTPGCoder::updateXML(const char* filename) {
   HcalTopology theTopo;
   LutXml * _xml = new LutXml(filename);
   _xml->create_lut_map();
   HcalSubdetector subdet[3] = {HcalBarrel, HcalEndcap, HcalForward};
   for (int ieta=-41; ieta<=41; ++ieta){
      for (int iphi=1; iphi<=72; ++iphi){
         for (int depth=1; depth<=3; ++depth){
            for (int isub=0; isub<3; ++isub){
               HcalDetId detid(subdet[isub], ieta, iphi, depth);
               if (!theTopo.valid(detid)) continue;
               int id = getLUTId(subdet[isub], ieta, iphi, depth);
               std::vector<unsigned int>* lut = _xml->getLutFast(detid);
               if (lut==0) throw cms::Exception("PROBLEM: No inputLUT_ in xml file for ") << detid << std::endl;
               if (lut->size()!=128) throw cms::Exception ("PROBLEM: Wrong inputLUT_ size in xml file for ") << detid << std::endl;
               for (int i=0; i<128; ++i) inputLUT_[id][i] = (LutElement)lut->at(i);
            }
         }
      }
   }
   delete _xml;
   XMLProcessor::getInstance()->terminate();
}

void HcaluLUTTPGCoder::update(const HcalDbService& conditions) {

   const HcalQIEShape* shape = conditions.getHcalShape();
   HcalCalibrations calibrations;
   const HcalLutMetadata *metadata = conditions.getHcalLutMetadata();
   assert(metadata !=0);
   float nominalgain_ = metadata->getNominalGain();

   std::map<int, float> cosh_ieta;
   for (int i = 0; i < 13; ++i)
      cosh_ieta[i+29] = cosh((theHFEtaBounds[i+1] + theHFEtaBounds[i])/2.);

   HcalSubdetector subdets[] = {HcalBarrel, HcalEndcap, HcalForward};
   for (int isub = 0; isub < 3; ++isub){
      HcalSubdetector subdet = subdets[isub];
      for (int ieta = -41; ieta <= 41; ++ieta){
         for (int iphi = 1; iphi <= 72; ++iphi){
            for (int depth = 1; depth <= 3; ++depth){
               if (!HcalDetId::validDetId(subdet, ieta, iphi, depth)) continue;

               HcalDetId cell(subdet, ieta, iphi, depth);
               const HcalQIECoder* channelCoder = conditions.getHcalCoder (cell);
               HcalCoderDb coder (*channelCoder, *shape);
               const HcalLutMetadatum *meta = metadata->getValues(cell);


               int lutId = getLUTId(subdet, ieta, iphi, depth);
               float ped = 0;
               float gain = 0;
               uint32_t status = 0;

               if (LUTGenerationMode_){
                  const HcalCalibrations& calibrations = conditions.getHcalCalibrations(cell);
                  for (int capId = 0; capId < 4; ++capId){
                     ped += calibrations.pedestal(capId);
                     gain += calibrations.LUTrespcorrgain(capId);
                  }
                  ped /= 4.0;
                  gain /= 4.0;

                  //Get Channel Quality
                  const HcalChannelStatus* channelStatus = conditions.getHcalChannelStatus(cell);
                  status = channelStatus->getValue();
               }
               else {
                  const HcalL1TriggerObject* myL1TObj = conditions.getHcalL1TriggerObject(cell);
                  ped = myL1TObj->getPedestal();
                  gain = myL1TObj->getRespGain();
                  status = myL1TObj->getFlag();
               } // LUTGenerationMode_

               ped_[lutId] = ped;
               gain_[lutId] = gain;
               bool isMasked = ( (status & bitToMask_) > 0 );
               float rcalib = meta->getRCalib();

               // Input LUT for HB/HE/HF
               if (subdet == HcalBarrel || subdet == HcalEndcap){
                  HBHEDataFrame frame(cell);
                  frame.setSize(1);
                  CaloSamples samples(cell, 1);

                  int granularity = meta->getLutGranularity();

                  for (int adc = 0; adc <= 0x7F; ++adc) {
                     frame.setSample(0,HcalQIESample(adc));
                     coder.adc2fC(frame,samples);
                     float adc2fC = samples[0];

                     if (isMasked) inputLUT_[lutId][adc] = 0;
                     else inputLUT_[lutId][adc] = (LutElement) std::min(std::max(0, int((adc2fC -ped) * gain * rcalib / nominalgain_ / granularity)), 0x3FF);
                  }
               }  // endif HBHE
               else if (subdet == HcalForward){
                  HFDataFrame frame(cell);
                  frame.setSize(1);
                  CaloSamples samples(cell, 1);

                  float one_adc2fC = 0.0;
                  for (int capId = 0; capId < 4; ++capId)
                     one_adc2fC += channelCoder->charge(*shape, 1, capId) - channelCoder->charge(*shape, 0, capId);
                  one_adc2fC /= 4.0;
                  // Lumi offset of 1 adc (in fC) for the four rings used to measure lumi
                  float offset = (abs(ieta) >= 33 && abs(ieta) <= 36) ? one_adc2fC : 0; 
                  
                  for (int adc = 0; adc <= 0x7F; ++adc) {
                     frame.setSample(0,HcalQIESample(adc));
                     coder.adc2fC(frame,samples);
                     float adc2fC = samples[0];
                     if (isMasked) inputLUT_[lutId][adc] = 0;
                     else inputLUT_[lutId][adc] = std::min(std::max(0,int((adc2fC - ped + offset) * gain * rcalib / lsb_ / cosh_ieta[abs(ieta)] )), 0x3FF);
                  }
               } // endif HF
            } // for depth
         } // for iphi
      } // for iphi
   }// for subdet
}

void HcaluLUTTPGCoder::adc2Linear(const HBHEDataFrame& df, IntegerCaloSamples& ics) const {
   int lutId = getLUTId(df.id());
   const Lut& lut = inputLUT_.at(lutId);
   for (int i=0; i<df.size(); i++){
      ics[i] = (lut.at(df[i].adc()) & 0x3FF);
   }
}

void HcaluLUTTPGCoder::adc2Linear(const HFDataFrame& df, IntegerCaloSamples& ics) const {
   int lutId = getLUTId(df.id());
   const Lut& lut = inputLUT_.at(lutId);
   for (int i=0; i<df.size(); i++){
      ics[i] = (lut.at(df[i].adc()) & 0x3FF);
   }
}

unsigned short HcaluLUTTPGCoder::adc2Linear(HcalQIESample sample, HcalDetId id) const {
   int lutId = getLUTId(id);
   return ((inputLUT_.at(lutId)).at(sample.adc()) & 0x3FF);
}

float HcaluLUTTPGCoder::getLUTPedestal(HcalDetId id) const {
   int lutId = getLUTId(id);
   return ped_.at(lutId);
}

float HcaluLUTTPGCoder::getLUTGain(HcalDetId id) const {
   int lutId = getLUTId(id);
   return gain_.at(lutId);
}

std::vector<unsigned short> HcaluLUTTPGCoder::getLinearizationLUTWithMSB(const HcalDetId& id) const{
   int lutId = getLUTId(id);
   return inputLUT_.at(lutId);
}

void HcaluLUTTPGCoder::lookupMSB(const HBHEDataFrame& df, std::vector<bool>& msb) const{
   msb.resize(df.size());
   for (int i=0; i<df.size(); ++i)
      msb[i] = getMSB(df.id(), df.sample(i).adc());
}

bool HcaluLUTTPGCoder::getMSB(const HcalDetId& id, int adc) const{
   int lutId = getLUTId(id);
   const Lut& lut = inputLUT_.at(lutId);
   return (lut.at(adc) & 0x400);
}