mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-16 08:38:00 +00:00
61 lines
No EOL
1.4 KiB
JavaScript
61 lines
No EOL
1.4 KiB
JavaScript
define(["Tone/core/Tone", "Tone/core/Param", "Tone/core/Type"], function (Tone) {
|
|
|
|
/**
|
|
* @class A thin wrapper around the Native Web Audio GainNode.
|
|
* The GainNode is a basic building block of the Web Audio
|
|
* API and is useful for routing audio and adjusting gains.
|
|
* @extends {Tone}
|
|
* @param {Number=} value The initial gain of the GainNode
|
|
* @param {Tone.Type=} units The units of the gain parameter.
|
|
*/
|
|
Tone.Gain = function(){
|
|
|
|
var options = this.optionsObject(arguments, ["value", "units"], Tone.Gain.defaults);
|
|
|
|
/**
|
|
* The GainNode
|
|
* @type {GainNode}
|
|
* @private
|
|
*/
|
|
this._gainNode = this.context.createGain();
|
|
|
|
options.param = this._gainNode.gain;
|
|
Tone.Param.call(this, options);
|
|
this.input = this.output = this._gainNode;
|
|
|
|
/**
|
|
* The gain parameter of the gain node.
|
|
* @type {AudioParam}
|
|
* @signal
|
|
*/
|
|
this.gain = this._param;
|
|
this._readOnly("gain");
|
|
};
|
|
|
|
Tone.extend(Tone.Gain, Tone.Param);
|
|
|
|
/**
|
|
* The defaults
|
|
* @const
|
|
* @type {Object}
|
|
*/
|
|
Tone.Gain.defaults = {
|
|
"value" : 1,
|
|
"units" : Tone.Type.Gain,
|
|
"convert" : true
|
|
};
|
|
|
|
/**
|
|
* Clean up.
|
|
* @return {Tone.Gain} this
|
|
*/
|
|
Tone.Gain.prototype.dispose = function(){
|
|
Tone.Param.prototype.dispose.call(this);
|
|
this._gainNode.disconnect();
|
|
this._gainNode = null;
|
|
this._writable("gain");
|
|
this.gain = null;
|
|
};
|
|
|
|
return Tone.Gain;
|
|
}); |