81 lines
2.3 KiB
TypeScript
81 lines
2.3 KiB
TypeScript
import type { Effect } from './Effect.interface'
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export class FoldCrushEffect implements Effect {
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readonly id = 'foldcrush'
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private inputNode: GainNode
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private outputNode: GainNode
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private processorNode: AudioWorkletNode | null = null
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private wetNode: GainNode
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private dryNode: GainNode
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constructor(audioContext: AudioContext) {
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this.inputNode = audioContext.createGain()
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this.outputNode = audioContext.createGain()
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this.wetNode = audioContext.createGain()
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this.dryNode = audioContext.createGain()
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this.wetNode.gain.value = 0
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this.dryNode.gain.value = 1
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this.inputNode.connect(this.dryNode)
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this.dryNode.connect(this.outputNode)
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}
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async initialize(audioContext: AudioContext): Promise<void> {
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try {
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this.processorNode = new AudioWorkletNode(audioContext, 'fold-crush-processor')
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this.inputNode.connect(this.processorNode)
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this.processorNode.connect(this.wetNode)
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this.wetNode.connect(this.outputNode)
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} catch (error) {
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console.error('Failed to initialize FoldCrushEffect worklet:', error)
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}
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}
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getInputNode(): AudioNode {
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return this.inputNode
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}
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getOutputNode(): AudioNode {
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return this.outputNode
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}
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setBypass(bypass: boolean): void {
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if (bypass) {
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this.wetNode.gain.value = 0
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this.dryNode.gain.value = 1
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} else {
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this.wetNode.gain.value = 1
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this.dryNode.gain.value = 0
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}
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}
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updateParams(values: Record<string, number | string>): void {
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if (!this.processorNode) return
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if (values.clipMode !== undefined) {
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this.processorNode.port.postMessage({ type: 'clipMode', value: values.clipMode })
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}
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if (values.wavefolderDrive !== undefined) {
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this.processorNode.port.postMessage({ type: 'drive', value: values.wavefolderDrive })
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}
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if (values.bitcrushDepth !== undefined) {
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this.processorNode.port.postMessage({ type: 'bitDepth', value: values.bitcrushDepth })
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}
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if (values.bitcrushRate !== undefined) {
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this.processorNode.port.postMessage({ type: 'crushAmount', value: values.bitcrushRate })
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}
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}
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dispose(): void {
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if (this.processorNode) {
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this.processorNode.disconnect()
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}
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this.wetNode.disconnect()
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this.dryNode.disconnect()
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this.inputNode.disconnect()
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this.outputNode.disconnect()
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}
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}
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