[HTML5] Libraries refactor for linting.

Initial work to make liniting easier.

This includes:
- Rename http_request.js to library_godot_http_request.js.
- Rename externs.js to engine.externs.js.
- New library_godot_runtime.js (GodotRuntime) wraps around emscripten
  functions.
- Refactor of XMLHttpRequest handler in engine/preloader.js.
- Few fixes to bugs spotted by early stage linting.

1 files changed, 0 insertions, 185 deletions

diff --git a/platform/javascript/native/audio.worklet.js b/platform/javascript/native/audio.worklet.js
deleted file mode 100644
index f91787b993..0000000000
--- a/platform/javascript/native/audio.worklet.js
+++ /dev/null
@@ -1,185 +0,0 @@
-/*************************************************************************/
-/*  audio.worklet.js                                                     */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 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) {
-		this.buffer = p_buffer;
-		this.avail = p_state;
-		this.rpos = 0;
-		this.wpos = 0;
-	}
-
-	data_left() {
-		return Atomics.load(this.avail, 0);
-	}
-
-	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;
-		}
-		output.set(this.buffer.subarray(this.rpos, this.rpos + to_write), from);
-		this.rpos += to_write;
-		Atomics.add(this.avail, 0, -output.length);
-		Atomics.notify(this.avail, 0);
-	}
-
-	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);
-		} else {
-			const high = p_buffer.subarray(0, to_write - mw);
-			const low = p_buffer.subarray(to_write - mw);
-			this.buffer.set(high, this.wpos);
-			this.buffer.set(low);
-		}
-		let diff = to_write;
-		if (this.wpos + diff >= this.buffer.length) {
-			diff -= this.buffer.length;
-		}
-		this.wpos += diff;
-		Atomics.add(this.avail, 0, to_write);
-		Atomics.notify(this.avail, 0);
-	}
-}
-
-class GodotProcessor extends AudioWorkletProcessor {
-	constructor() {
-		super();
-		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() {
-		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.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);
-			this.output = new RingBuffer(p_data[2], avail_out);
-		} else if (p_cmd == "stop") {
-			this.runing = false;
-			this.output = null;
-			this.input = null;
-		}
-	}
-
-	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 = this.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.input.space_left() >= chunk) {
-				this.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 = this.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);
-				this.write_output(output, this.output_buffer);
-			} else {
-				this.port.postMessage("Output buffer has not enough frames! Skipping output frame.");
-			}
-		}
-		this.process_notify();
-		return true;
-	}
-
-	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];
-			}
-		}
-	}
-
-	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);