CSCLUTReader.h

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#ifndef L1Trigger_CSCTriggerPrimitives_CSCLUTReader
#define L1Trigger_CSCTriggerPrimitives_CSCLUTReader
 
#include <fstream>
#include <sstream>
#include <bitset>
#include <iostream>
#include <vector>
#include <limits>
 
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
 
class CSCLUTReader {
public:
  enum ReadCodes {
    SUCCESS = 0,
    NO_ENTRIES = 1,
    DUP_ENTRIES = 2,
    MISS_ENTRIES = 3,
    MAX_ADDRESS_OUTOFRANGE = 4,
    NO_HEADER = 5
  };
 
  /* CSCLUTReader(); */
  explicit CSCLUTReader(const std::string&);
  ~CSCLUTReader() {}
 
  float lookup(int code) const;
  float lookupPacked(const int input) const;
 
  // populates the map.
  void initialize();
 
  unsigned checkedInput(unsigned in, unsigned maxWidth) const;
 
  // I/O functions
  void save(std::ofstream& output);
  int load(const std::string& inFileName);
 
  float data(unsigned int address) const;
  int read(std::istream& stream);
  void write(std::ostream& stream) const;
 
  unsigned int nrBitsAddress() const { return nrBitsAddress_; }
  unsigned int nrBitsData() const { return nrBitsData_; }
  //following the convention of vector::size()
  unsigned int maxSize() const;
  bool empty() const { return data_.empty(); }
 
private:
  std::string fname_;
  int readHeader(std::istream&);
 
  unsigned int nrBitsAddress_;  //technically redundant with addressMask
  unsigned int nrBitsData_;     //technically redundant with dataMask
  unsigned int addressMask_;
  unsigned int dataMask_;
 
  std::vector<float> data_;
 
  int m_codeInWidth;
  unsigned m_outWidth;
  bool m_initialized;
};
 
#endif