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Diffstat (limited to 'releases/web/GoGodotJam3.audio.worklet.js')
-rw-r--r--releases/web/GoGodotJam3.audio.worklet.js211
1 files changed, 0 insertions, 211 deletions
diff --git a/releases/web/GoGodotJam3.audio.worklet.js b/releases/web/GoGodotJam3.audio.worklet.js
deleted file mode 100644
index ea4d8cb..0000000
--- a/releases/web/GoGodotJam3.audio.worklet.js
+++ /dev/null
@@ -1,211 +0,0 @@
-/*************************************************************************/
-/* audio.worklet.js */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
-/* */
-/* 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;
- } 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.');
- }
- }
- 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.');
- }
- }
- 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);
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