Method ProcessOne

libraries/lib-nyquist-effects/NyquistBase.cpp:1139–1726

// NyquistBase implementation

bool NyquistBase::ProcessOne(
   NyxContext& nyxContext, EffectOutputTracks* pOutputs)
{
   const auto mCurNumChannels = nyxContext.mCurNumChannels;
   nyx_rval rval;

   wxString cmd;
   cmd += wxT("(snd-set-latency  0.1)");

   // A tool may be using AUD-DO which will potentially invalidate *TRACK*
   // so tools do not get *TRACK*.
   if (GetType() == EffectTypeTool)
      cmd += wxT("(setf S 0.25)\n"); // No Track.
   else if (mVersion >= 4)
   {
      nyx_set_audio_name("*TRACK*");
      cmd += wxT("(setf S 0.25)\n");
   }
   else
   {
      nyx_set_audio_name("S");
      cmd += wxT("(setf *TRACK* '*unbound*)\n");
   }

   if (mVersion >= 4)
   {
      cmd += mProps;
      cmd += mPerTrackProps;
   }

   const auto& mCurChannelGroup = nyxContext.mCurChannelGroup;

   if ((mVersion >= 4) && (GetType() != EffectTypeTool))
   {
      // Set the track TYPE and VIEW properties
      wxString type;
      wxString view;
      wxString bitFormat;
      wxString spectralEditp;

      mCurChannelGroup->TypeSwitch(
         [&](const WaveTrack& wt) {
            type = wxT("wave");
            spectralEditp = SpectrogramSettings::Get(*mCurChannelGroup)
                                  .SpectralSelectionEnabled() ?
                               wxT("T") :
                               wxT("NIL");
            view = wxT("NIL");
            // Find() not Get() to avoid creation-on-demand of views in case we
            // are only previewing
            const auto displays = GetDisplaysHook::Call(&wt);
            const auto format = [&](decltype(displays[0]) display) {
               // Get the English name of the view type, without menu codes,
               // as a string that Lisp can examine
               return wxString::Format(
                  wxT("\"%s\""), display.name.Stripped().Debug());
            };
            if (displays.empty())