mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-17 00:58:09 +00:00
77 lines
No EOL
1.6 KiB
JavaScript
77 lines
No EOL
1.6 KiB
JavaScript
define(["Tone/core/Tone", "Tone/signal/Threshold", "Tone/signal/Negate", "Tone/signal/EqualZero"], function(Tone){
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/**
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* return the absolute value of an incoming signal
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*
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* @constructor
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* @extends {Tone}
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* @param {number} value
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*/
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Tone.Abs = function(value){
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Tone.call(this);
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/**
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* @type {Tone.Threshold}
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* @private
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*/
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this._thresh = new Tone.Threshold(0);
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/**
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* @type {Tone.Negate}
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* @private
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*/
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this._negate = new Tone.Negate();
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/**
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* @type {Tone.EqualZero}
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* @private
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*/
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this._not = new Tone.EqualZero();
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/**
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* @type {GainNode}
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* @private
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*/
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this._positive = this.context.createGain();
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/**
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* @type {GainNode}
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* @private
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*/
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this._negative = this.context.createGain();
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this.input.connect(this._thresh);
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//two routes, one positive, one negative
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this.chain(this.input, this._positive, this.output);
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this.chain(this.input, this._negate, this._negative, this.output);
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//the switching logic
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this._thresh.connect(this._positive.gain);
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this._positive.gain.value = 0;
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this.chain(this._thresh, this._not, this._negative.gain);
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this._negative.gain.value = 0;
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};
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Tone.extend(Tone.Abs);
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/**
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* dispose method
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*/
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Tone.Abs.prototype.dispose = function(){
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this._thresh.dispose();
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this._negate.dispose();
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this._not.dispose();
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this._positive.disconnect();
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this._negative.disconnect();
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this.input.disconnect();
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this.output.disconnect();
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this._thresh = null;
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this._negate = null;
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this._not = null;
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this._positive = null;
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this._negative = null;
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this.input = null;
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this.output = null;
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};
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return Tone.Abs;
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}); |