Delete FastMath.audio.worklet.js

FastMath.audio.worklet.js

@@ -1,213 +0,0 @@
-/**************************************************************************/
-/*  audio.worklet.js                                                      */
-/**************************************************************************/
-/*                         This file is part of:                          */
-/*                             GODOT ENGINE                               */
-/*                        https://godotengine.org                         */
-/**************************************************************************/
-/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
-/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
-/*                                                                        */
-/* Permission is hereby granted, free of charge, to any person obtaining  */
-/* a copy of this software and associated documentation files (the        */
-/* "Software"), to deal in the Software without restriction, including    */
-/* without limitation the rights to use, copy, modify, merge, publish,    */
-/* distribute, sublicense, and/or sell copies of the Software, and to     */
-/* permit persons to whom the Software is furnished to do so, subject to  */
-/* the following conditions:                                              */
-/*                                                                        */
-/* The above copyright notice and this permission notice shall be         */
-/* included in all copies or substantial portions of the Software.        */
-/*                                                                        */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
-/**************************************************************************/
-
-class RingBuffer {
-	constructor(p_buffer, p_state, p_threads) {
-		this.buffer = p_buffer;
-		this.avail = p_state;
-		this.threads = p_threads;
-		this.rpos = 0;
-		this.wpos = 0;
-	}
-
-	data_left() {
-		return this.threads ? Atomics.load(this.avail, 0) : this.avail;
-	}
-
-	space_left() {
-		return this.buffer.length - this.data_left();
-	}
-
-	read(output) {
-		const size = this.buffer.length;
-		let from = 0;
-		let to_write = output.length;
-		if (this.rpos + to_write > size) {
-			const high = size - this.rpos;
-			output.set(this.buffer.subarray(this.rpos, size));
-			from = high;
-			to_write -= high;
-			this.rpos = 0;
-		}
-		if (to_write) {
-			output.set(this.buffer.subarray(this.rpos, this.rpos + to_write), from);
-		}
-		this.rpos += to_write;
-		if (this.threads) {
-			Atomics.add(this.avail, 0, -output.length);
-			Atomics.notify(this.avail, 0);
-		} else {
-			this.avail -= output.length;
-		}
-	}
-
-	write(p_buffer) {
-		const to_write = p_buffer.length;
-		const mw = this.buffer.length - this.wpos;
-		if (mw >= to_write) {
-			this.buffer.set(p_buffer, this.wpos);
-			this.wpos += to_write;
-			if (mw === to_write) {
-				this.wpos = 0;
-			}
-		} else {
-			const high = p_buffer.subarray(0, mw);
-			const low = p_buffer.subarray(mw);
-			this.buffer.set(high, this.wpos);
-			this.buffer.set(low);
-			this.wpos = low.length;
-		}
-		if (this.threads) {
-			Atomics.add(this.avail, 0, to_write);
-			Atomics.notify(this.avail, 0);
-		} else {
-			this.avail += to_write;
-		}
-	}
-}
-
-class GodotProcessor extends AudioWorkletProcessor {
-	constructor() {
-		super();
-		this.threads = false;
-		this.running = true;
-		this.lock = null;
-		this.notifier = null;
-		this.output = null;
-		this.output_buffer = new Float32Array();
-		this.input = null;
-		this.input_buffer = new Float32Array();
-		this.port.onmessage = (event) => {
-			const cmd = event.data['cmd'];
-			const data = event.data['data'];
-			this.parse_message(cmd, data);
-		};
-	}
-
-	process_notify() {
-		if (this.notifier) {
-			Atomics.add(this.notifier, 0, 1);
-			Atomics.notify(this.notifier, 0);
-		}
-	}
-
-	parse_message(p_cmd, p_data) {
-		if (p_cmd === 'start' && p_data) {
-			const state = p_data[0];
-			let idx = 0;
-			this.threads = true;
-			this.lock = state.subarray(idx, ++idx);
-			this.notifier = state.subarray(idx, ++idx);
-			const avail_in = state.subarray(idx, ++idx);
-			const avail_out = state.subarray(idx, ++idx);
-			this.input = new RingBuffer(p_data[1], avail_in, true);
-			this.output = new RingBuffer(p_data[2], avail_out, true);
-		} else if (p_cmd === 'stop') {
-			this.running = false;
-			this.output = null;
-			this.input = null;
-			this.lock = null;
-			this.notifier = null;
-		} else if (p_cmd === 'start_nothreads') {
-			this.output = new RingBuffer(p_data[0], p_data[0].length, false);
-		} else if (p_cmd === 'chunk') {
-			this.output.write(p_data);
-		}
-	}
-
-	static array_has_data(arr) {
-		return arr.length && arr[0].length && arr[0][0].length;
-	}
-
-	process(inputs, outputs, parameters) {
-		if (!this.running) {
-			return false; // Stop processing.
-		}
-		if (this.output === null) {
-			return true; // Not ready yet, keep processing.
-		}
-		const process_input = GodotProcessor.array_has_data(inputs);
-		if (process_input) {
-			const input = inputs[0];
-			const chunk = input[0].length * input.length;
-			if (this.input_buffer.length !== chunk) {
-				this.input_buffer = new Float32Array(chunk);
-			}
-			if (!this.threads) {
-				GodotProcessor.write_input(this.input_buffer, input);
-				this.port.postMessage({ 'cmd': 'input', 'data': this.input_buffer });
-			} else if (this.input.space_left() >= chunk) {
-				GodotProcessor.write_input(this.input_buffer, input);
-				this.input.write(this.input_buffer);
-			} else {
-				// this.port.postMessage('Input buffer is full! Skipping input frame.'); // Uncomment this line to debug input buffer.
-			}
-		}
-		const process_output = GodotProcessor.array_has_data(outputs);
-		if (process_output) {
-			const output = outputs[0];
-			const chunk = output[0].length * output.length;
-			if (this.output_buffer.length !== chunk) {
-				this.output_buffer = new Float32Array(chunk);
-			}
-			if (this.output.data_left() >= chunk) {
-				this.output.read(this.output_buffer);
-				GodotProcessor.write_output(output, this.output_buffer);
-				if (!this.threads) {
-					this.port.postMessage({ 'cmd': 'read', 'data': chunk });
-				}
-			} else {
-				// this.port.postMessage('Output buffer has not enough frames! Skipping output frame.'); // Uncomment this line to debug output buffer.
-			}
-		}
-		this.process_notify();
-		return true;
-	}
-
-	static write_output(dest, source) {
-		const channels = dest.length;
-		for (let ch = 0; ch < channels; ch++) {
-			for (let sample = 0; sample < dest[ch].length; sample++) {
-				dest[ch][sample] = source[sample * channels + ch];
-			}
-		}
-	}
-
-	static write_input(dest, source) {
-		const channels = source.length;
-		for (let ch = 0; ch < channels; ch++) {
-			for (let sample = 0; sample < source[ch].length; sample++) {
-				dest[sample * channels + ch] = source[ch][sample];
-			}
-		}
-	}
-}
-
-registerProcessor('godot-processor', GodotProcessor);