CondFormats/RPCObjects/interface/RPCFebConnector.icc - master - githubmirror/cmssw

CondFormats/RPCObjects/interface/RPCFebConnector.icc
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24 май 2019, 00:14
24 май 2019, 00:14ecf11e6
#ifndef CondFormats_RPCObjects_RPCFebConnector_icc
#define CondFormats_RPCObjects_RPCFebConnector_icc

#include "CondFormats/RPCObjects/interface/RPCFebConnector.h"

#include "FWCore/Utilities/interface/Exception.h"

inline unsigned int RPCFebConnector::bit_count(std::uint16_t value) {
  // sum per nibble
  value -= (((value >> 1) & 0x7777) + ((value >> 2) & 0x3333) + ((value >> 3) & 0x1111));
  value = (value + (value >> 4)) & 0x0f0f;
  return ((value + (value >> 8)) & 0x1f);
}

inline void RPCFebConnector::reset() {
  first_strip_ = 1;
  slope_ = 1;
  channels_ = 0x0;
  rpc_det_id_ = RPCDetId(0, 0, 1, 1, 1, 1, 0).rawId();
}

inline RPCDetId RPCFebConnector::getRPCDetId() const { return RPCDetId(rpc_det_id_); }

inline unsigned int RPCFebConnector::getFirstStrip() const { return first_strip_; }

inline int RPCFebConnector::getSlope() const { return slope_; }

inline std::uint16_t RPCFebConnector::getChannels() const { return channels_; }

inline RPCFebConnector& RPCFebConnector::setRPCDetId(RPCDetId const& rpc_det_id) {
  rpc_det_id_ = rpc_det_id.rawId();
  return *this;
}

inline RPCFebConnector& RPCFebConnector::setFirstStrip(unsigned int first_strip) {
  if (first_strip >= min_first_strip_ && first_strip <= max_first_strip_)
    first_strip_ = first_strip;
  else
    throw cms::Exception("OutOfRange") << "Out-of-range input for RPCFebConnector first strip: " << first_strip;
  return *this;
}

inline RPCFebConnector& RPCFebConnector::setSlope(int slope) {
  slope_ = (slope < 0 ? -1 : 1);
  return *this;
}

inline RPCFebConnector& RPCFebConnector::setChannels(std::uint16_t channels) {
  channels_ = channels;
  return *this;
}

inline bool RPCFebConnector::isActive(unsigned int channel) const {
  if (channel > 0 && channel <= nchannels_)
    return (channels_ & (0x1 << (channel - 1)));
  return false;
}

inline unsigned int RPCFebConnector::getNChannels() const { return bit_count(channels_); }

inline unsigned int RPCFebConnector::getStrip(unsigned int channel) const {
  if (!isActive(channel))
    return 0;
  int active_channels = bit_count(std::uint16_t(channels_ & ((0x1 << (channel - 1)) - 1)));
  return (int)first_strip_ + slope_ * active_channels;
}

inline bool RPCFebConnector::hasStrip(unsigned int strip) const {
  int offset = slope_ * (strip - first_strip_);
  return (offset >= 0 && offset < (int)getNChannels());
}

inline unsigned int RPCFebConnector::getChannel(unsigned int strip) const {
  int offset = slope_ * (strip - first_strip_);
  if (offset < 0 || offset >= (int)getNChannels())
    return 0;
  std::uint16_t channels(channels_);
  for (unsigned int channel = 1; channels; channels >>= 1, ++channel)
    if (channels & 0x1) {
      if (!offset)
        return channel;
      --offset;
    }
  return 0;
}

#endif  // CondFormats_RPCObjects_RPCFebConnector_icc