lasp_siggen.cpp

Go to the documentation of this file.

/* #define DEBUGTRACE_ENABLED */
#include "lasp_siggen.h"
#include "debugtrace.hpp"
#include "lasp_mathtypes.h"
#include <cassert>
#include <type_traits>
using std::cerr;
using std::endl;
using rte = std::runtime_error;
 
inline d level_amp(d level_dB) { return pow(10, level_dB / 20); }
 
using mutexlock = std::scoped_lock<std::mutex>;
 
vd Siggen::genSignal(const us nframes) {
 
  DEBUGTRACE_ENTER;
  mutexlock lck(_mtx);
 
  DEBUGTRACE_PRINT(nframes);
  vd signal(nframes, arma::fill::value(_dc_offset));
 
  if (!_muted) {
    vd signal_dynamic = _level_linear * genSignalUnscaled(nframes);
    for (auto f : _filters) {
      assert(f.second);
      f.second->filter(signal_dynamic);
    }
    signal += signal_dynamic;
  }
 
  return signal;
}
void Siggen::setFilter(const std::string &name,
                       std::shared_ptr<Filter> filter) {
  DEBUGTRACE_ENTER;
  mutexlock lck(_mtx);
  if (filter) {
    _filters[name] = filter;
  } else if (_filters.find(name) != _filters.end()) {
    _filters.extract(name);
  }
}
void Siggen::setDCOffset(const d offset) {
  DEBUGTRACE_ENTER;
  mutexlock lck(_mtx);
  _dc_offset = offset;
}
void Siggen::setLevel(const d level, bool dB) {
  DEBUGTRACE_ENTER;
  mutexlock lck(_mtx);
  _level_linear = dB ? level_amp(level) : level;
}
void Siggen::reset(const d newFs) {
  DEBUGTRACE_ENTER;
  mutexlock lck(_mtx);
  _fs = newFs;
  for (auto &f : _filters) {
    assert(f.second);
    f.second->reset();
  }
  resetImpl();
}