gibberish-dsp/js/instruments/polyMixin.js

Gibberish is designed to be an optimized API for audio synthesis using per-sample techniques.

// XXX TOO MANY GLOBAL GIBBERISH VALUES

const Gibberish = require( '../index.js' )

module.exports = {
  note( freq ) {
    // will be sent to processor node via proxy method...
    if( Gibberish.mode !== 'worklet' ) {
      let voice = this.__getVoice__()
      //Object.assign( voice, this.properties )
      //if( gain === undefined ) gain = this.gain
      //voice.gain = gain
      voice.__triggerLoudness = this.__triggerLoudness
      voice.note( freq, this.__triggerLoudness )
      this.__runVoice__( voice, this )
      this.triggerNote = freq
    }
  },

  // XXX this is not particularly satisfying...
  // must check for both notes and chords
  trigger( loudness ) {
    if( this.triggerChord !== null ) {
      this.triggerChord.forEach( v => {
        let voice = this.__getVoice__()
        Object.assign( voice, this.properties )
        voice.note( v, loudness )
        this.__runVoice__( voice, this )
      })
    }else if( this.triggerNote !== null ) {
      let voice = this.__getVoice__()
      Object.assign( voice, this.properties )
      voice.note( this.triggerNote, loudness )
      this.__runVoice__( voice, this )
    }else{
      let voice = this.__getVoice__()
      Object.assign( voice, this.properties )
      voice.trigger( loudness )
      this.__runVoice__( voice, this )
    }
  },

  __runVoice__( voice, _poly ) {
    if( !voice.isConnected ) {
      voice.connect( _poly )
      voice.isConnected = true
    }

    //let envCheck
    //if( _poly.envCheck === undefined ) {
    //  envCheck = function() {
    //    if( voice.env.isComplete() ) {
    //      _poly.disconnectUgen( voice )
    //      voice.isConnected = false
    //    }else{
    //      Gibberish.blockCallbacks.push( envCheck )
    //    }
    //  }
    //}else{
    //  envCheck = _poly.envCheck( voice, _poly )
    //}

    // XXX uncomment this line to turn on dynamically connecting
    // disconnecting individual voices from graph
    //Gibberish.blockCallbacks.push( envCheck )
  },

  __getVoice__() {
    return this.voices[ this.voiceCount++ % this.voices.length ]
  },

  chord( frequencies ) {
    // will be sent to processor node via proxy method...
    if( Gibberish !== undefined && Gibberish.mode !== 'worklet' ) {
      frequencies.forEach( v => this.note( v ) )
      this.triggerChord = frequencies
    }
  },

  free() {
    for( let child of this.voices ) child.free()
  },

  triggerChord:null,
  triggerNote:null
}