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503 lines
16 KiB
JavaScript
503 lines
16 KiB
JavaScript
/**************************************************************************/
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/* library_godot_webrtc.js */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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const GodotRTCDataChannel = {
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// Our socket implementation that forwards events to C++.
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$GodotRTCDataChannel__deps: ['$IDHandler', '$GodotRuntime'],
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$GodotRTCDataChannel: {
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connect: function (p_id, p_on_open, p_on_message, p_on_error, p_on_close) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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ref.binaryType = 'arraybuffer';
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ref.onopen = function (event) {
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p_on_open();
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};
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ref.onclose = function (event) {
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p_on_close();
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};
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ref.onerror = function (event) {
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p_on_error();
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};
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ref.onmessage = function (event) {
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let buffer;
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let is_string = 0;
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if (event.data instanceof ArrayBuffer) {
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buffer = new Uint8Array(event.data);
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} else if (event.data instanceof Blob) {
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GodotRuntime.error('Blob type not supported');
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return;
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} else if (typeof event.data === 'string') {
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is_string = 1;
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const enc = new TextEncoder('utf-8');
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buffer = new Uint8Array(enc.encode(event.data));
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} else {
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GodotRuntime.error('Unknown message type');
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return;
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}
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const len = buffer.length * buffer.BYTES_PER_ELEMENT;
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const out = GodotRuntime.malloc(len);
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HEAPU8.set(buffer, out);
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p_on_message(out, len, is_string);
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GodotRuntime.free(out);
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};
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},
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close: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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ref.onopen = null;
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ref.onmessage = null;
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ref.onerror = null;
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ref.onclose = null;
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ref.close();
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},
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get_prop: function (p_id, p_prop, p_def) {
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const ref = IDHandler.get(p_id);
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return (ref && ref[p_prop] !== undefined) ? ref[p_prop] : p_def;
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},
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},
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godot_js_rtc_datachannel_ready_state_get__proxy: 'sync',
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godot_js_rtc_datachannel_ready_state_get__sig: 'ii',
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godot_js_rtc_datachannel_ready_state_get: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return 3; // CLOSED
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}
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switch (ref.readyState) {
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case 'connecting':
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return 0;
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case 'open':
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return 1;
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case 'closing':
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return 2;
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case 'closed':
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default:
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return 3;
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}
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},
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godot_js_rtc_datachannel_send__proxy: 'sync',
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godot_js_rtc_datachannel_send__sig: 'iiiii',
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godot_js_rtc_datachannel_send: function (p_id, p_buffer, p_length, p_raw) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return 1;
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}
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const bytes_array = new Uint8Array(p_length);
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for (let i = 0; i < p_length; i++) {
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bytes_array[i] = GodotRuntime.getHeapValue(p_buffer + i, 'i8');
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}
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if (p_raw) {
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ref.send(bytes_array.buffer);
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} else {
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const string = new TextDecoder('utf-8').decode(bytes_array);
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ref.send(string);
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}
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return 0;
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},
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godot_js_rtc_datachannel_is_ordered__proxy: 'sync',
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godot_js_rtc_datachannel_is_ordered__sig: 'ii',
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godot_js_rtc_datachannel_is_ordered: function (p_id) {
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return GodotRTCDataChannel.get_prop(p_id, 'ordered', true);
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},
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godot_js_rtc_datachannel_id_get__proxy: 'sync',
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godot_js_rtc_datachannel_id_get__sig: 'ii',
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godot_js_rtc_datachannel_id_get: function (p_id) {
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return GodotRTCDataChannel.get_prop(p_id, 'id', 65535);
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},
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godot_js_rtc_datachannel_max_packet_lifetime_get__proxy: 'sync',
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godot_js_rtc_datachannel_max_packet_lifetime_get__sig: 'ii',
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godot_js_rtc_datachannel_max_packet_lifetime_get: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return 65535;
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}
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if (ref['maxPacketLifeTime'] !== undefined) {
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return ref['maxPacketLifeTime'];
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} else if (ref['maxRetransmitTime'] !== undefined) {
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// Guess someone didn't appreciate the standardization process.
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return ref['maxRetransmitTime'];
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}
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return 65535;
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},
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godot_js_rtc_datachannel_max_retransmits_get__proxy: 'sync',
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godot_js_rtc_datachannel_max_retransmits_get__sig: 'ii',
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godot_js_rtc_datachannel_max_retransmits_get: function (p_id) {
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return GodotRTCDataChannel.get_prop(p_id, 'maxRetransmits', 65535);
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},
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godot_js_rtc_datachannel_is_negotiated__proxy: 'sync',
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godot_js_rtc_datachannel_is_negotiated__sig: 'ii',
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godot_js_rtc_datachannel_is_negotiated: function (p_id) {
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return GodotRTCDataChannel.get_prop(p_id, 'negotiated', 65535);
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},
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godot_js_rtc_datachannel_get_buffered_amount__proxy: 'sync',
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godot_js_rtc_datachannel_get_buffered_amount__sig: 'ii',
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godot_js_rtc_datachannel_get_buffered_amount: function (p_id) {
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return GodotRTCDataChannel.get_prop(p_id, 'bufferedAmount', 0);
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},
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godot_js_rtc_datachannel_label_get__proxy: 'sync',
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godot_js_rtc_datachannel_label_get__sig: 'ii',
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godot_js_rtc_datachannel_label_get: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref || !ref.label) {
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return 0;
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}
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return GodotRuntime.allocString(ref.label);
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},
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godot_js_rtc_datachannel_protocol_get__sig: 'ii',
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godot_js_rtc_datachannel_protocol_get: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref || !ref.protocol) {
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return 0;
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}
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return GodotRuntime.allocString(ref.protocol);
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},
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godot_js_rtc_datachannel_destroy__proxy: 'sync',
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godot_js_rtc_datachannel_destroy__sig: 'vi',
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godot_js_rtc_datachannel_destroy: function (p_id) {
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GodotRTCDataChannel.close(p_id);
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IDHandler.remove(p_id);
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},
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godot_js_rtc_datachannel_connect__proxy: 'sync',
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godot_js_rtc_datachannel_connect__sig: 'viiiiii',
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godot_js_rtc_datachannel_connect: function (p_id, p_ref, p_on_open, p_on_message, p_on_error, p_on_close) {
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const onopen = GodotRuntime.get_func(p_on_open).bind(null, p_ref);
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const onmessage = GodotRuntime.get_func(p_on_message).bind(null, p_ref);
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const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_ref);
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const onclose = GodotRuntime.get_func(p_on_close).bind(null, p_ref);
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GodotRTCDataChannel.connect(p_id, onopen, onmessage, onerror, onclose);
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},
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godot_js_rtc_datachannel_close__proxy: 'sync',
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godot_js_rtc_datachannel_close__sig: 'vi',
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godot_js_rtc_datachannel_close: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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GodotRTCDataChannel.close(p_id);
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},
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};
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autoAddDeps(GodotRTCDataChannel, '$GodotRTCDataChannel');
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mergeInto(LibraryManager.library, GodotRTCDataChannel);
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const GodotRTCPeerConnection = {
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$GodotRTCPeerConnection__deps: ['$IDHandler', '$GodotRuntime', '$GodotRTCDataChannel'],
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$GodotRTCPeerConnection: {
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// Enums
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ConnectionState: {
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'new': 0,
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'connecting': 1,
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'connected': 2,
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'disconnected': 3,
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'failed': 4,
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'closed': 5,
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},
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ConnectionStateCompat: {
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// Using values from IceConnectionState for browsers that do not support ConnectionState (notably Firefox).
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'new': 0,
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'checking': 1,
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'connected': 2,
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'completed': 2,
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'disconnected': 3,
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'failed': 4,
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'closed': 5,
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},
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IceGatheringState: {
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'new': 0,
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'gathering': 1,
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'complete': 2,
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},
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SignalingState: {
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'stable': 0,
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'have-local-offer': 1,
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'have-remote-offer': 2,
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'have-local-pranswer': 3,
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'have-remote-pranswer': 4,
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'closed': 5,
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},
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// Callbacks
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create: function (config, onConnectionChange, onSignalingChange, onIceGatheringChange, onIceCandidate, onDataChannel) {
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let conn = null;
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try {
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conn = new RTCPeerConnection(config);
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} catch (e) {
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GodotRuntime.error(e);
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return 0;
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}
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const id = IDHandler.add(conn);
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if ('connectionState' in conn && conn['connectionState'] !== undefined) {
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// Use "connectionState" if supported
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conn.onconnectionstatechange = function (event) {
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if (!IDHandler.get(id)) {
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return;
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}
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onConnectionChange(GodotRTCPeerConnection.ConnectionState[conn.connectionState] || 0);
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};
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} else {
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// Fall back to using "iceConnectionState" when "connectionState" is not supported (notably Firefox).
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conn.oniceconnectionstatechange = function (event) {
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if (!IDHandler.get(id)) {
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return;
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}
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onConnectionChange(GodotRTCPeerConnection.ConnectionStateCompat[conn.iceConnectionState] || 0);
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};
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}
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conn.onicegatheringstatechange = function (event) {
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if (!IDHandler.get(id)) {
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return;
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}
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onIceGatheringChange(GodotRTCPeerConnection.IceGatheringState[conn.iceGatheringState] || 0);
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};
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conn.onsignalingstatechange = function (event) {
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if (!IDHandler.get(id)) {
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return;
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}
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onSignalingChange(GodotRTCPeerConnection.SignalingState[conn.signalingState] || 0);
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};
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conn.onicecandidate = function (event) {
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if (!IDHandler.get(id)) {
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return;
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}
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const c = event.candidate;
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if (!c || !c.candidate) {
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return;
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}
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const candidate_str = GodotRuntime.allocString(c.candidate);
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const mid_str = GodotRuntime.allocString(c.sdpMid);
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onIceCandidate(mid_str, c.sdpMLineIndex, candidate_str);
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GodotRuntime.free(candidate_str);
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GodotRuntime.free(mid_str);
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};
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conn.ondatachannel = function (event) {
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if (!IDHandler.get(id)) {
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return;
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}
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const cid = IDHandler.add(event.channel);
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onDataChannel(cid);
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};
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return id;
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},
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destroy: function (p_id) {
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const conn = IDHandler.get(p_id);
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if (!conn) {
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return;
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}
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conn.onconnectionstatechange = null;
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conn.oniceconnectionstatechange = null;
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conn.onicegatheringstatechange = null;
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conn.onsignalingstatechange = null;
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conn.onicecandidate = null;
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conn.ondatachannel = null;
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IDHandler.remove(p_id);
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},
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onsession: function (p_id, callback, session) {
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if (!IDHandler.get(p_id)) {
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return;
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}
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const type_str = GodotRuntime.allocString(session.type);
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const sdp_str = GodotRuntime.allocString(session.sdp);
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callback(type_str, sdp_str);
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GodotRuntime.free(type_str);
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GodotRuntime.free(sdp_str);
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},
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onerror: function (p_id, callback, error) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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GodotRuntime.error(error);
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callback();
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},
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},
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godot_js_rtc_pc_create__proxy: 'sync',
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godot_js_rtc_pc_create__sig: 'iiiiiiii',
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godot_js_rtc_pc_create: function (p_config, p_ref, p_on_connection_state_change, p_on_ice_gathering_state_change, p_on_signaling_state_change, p_on_ice_candidate, p_on_datachannel) {
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const wrap = function (p_func) {
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return GodotRuntime.get_func(p_func).bind(null, p_ref);
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};
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return GodotRTCPeerConnection.create(
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JSON.parse(GodotRuntime.parseString(p_config)),
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wrap(p_on_connection_state_change),
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wrap(p_on_signaling_state_change),
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wrap(p_on_ice_gathering_state_change),
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wrap(p_on_ice_candidate),
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wrap(p_on_datachannel)
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);
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},
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godot_js_rtc_pc_close__proxy: 'sync',
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godot_js_rtc_pc_close__sig: 'vi',
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godot_js_rtc_pc_close: function (p_id) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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ref.close();
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},
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godot_js_rtc_pc_destroy__proxy: 'sync',
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godot_js_rtc_pc_destroy__sig: 'vi',
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godot_js_rtc_pc_destroy: function (p_id) {
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GodotRTCPeerConnection.destroy(p_id);
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},
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godot_js_rtc_pc_offer_create__proxy: 'sync',
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godot_js_rtc_pc_offer_create__sig: 'viiii',
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godot_js_rtc_pc_offer_create: function (p_id, p_obj, p_on_session, p_on_error) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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const onsession = GodotRuntime.get_func(p_on_session).bind(null, p_obj);
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const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_obj);
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ref.createOffer().then(function (session) {
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GodotRTCPeerConnection.onsession(p_id, onsession, session);
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}).catch(function (error) {
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GodotRTCPeerConnection.onerror(p_id, onerror, error);
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});
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},
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godot_js_rtc_pc_local_description_set__proxy: 'sync',
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godot_js_rtc_pc_local_description_set__sig: 'viiiii',
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godot_js_rtc_pc_local_description_set: function (p_id, p_type, p_sdp, p_obj, p_on_error) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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const type = GodotRuntime.parseString(p_type);
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const sdp = GodotRuntime.parseString(p_sdp);
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const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_obj);
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ref.setLocalDescription({
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'sdp': sdp,
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'type': type,
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}).catch(function (error) {
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GodotRTCPeerConnection.onerror(p_id, onerror, error);
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});
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},
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godot_js_rtc_pc_remote_description_set__proxy: 'sync',
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godot_js_rtc_pc_remote_description_set__sig: 'viiiiii',
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godot_js_rtc_pc_remote_description_set: function (p_id, p_type, p_sdp, p_obj, p_session_created, p_on_error) {
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const ref = IDHandler.get(p_id);
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if (!ref) {
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return;
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}
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const type = GodotRuntime.parseString(p_type);
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const sdp = GodotRuntime.parseString(p_sdp);
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const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_obj);
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const onsession = GodotRuntime.get_func(p_session_created).bind(null, p_obj);
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ref.setRemoteDescription({
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'sdp': sdp,
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'type': type,
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}).then(function () {
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if (type !== 'offer') {
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return Promise.resolve();
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}
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return ref.createAnswer().then(function (session) {
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GodotRTCPeerConnection.onsession(p_id, onsession, session);
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});
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}).catch(function (error) {
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GodotRTCPeerConnection.onerror(p_id, onerror, error);
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});
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},
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godot_js_rtc_pc_ice_candidate_add__proxy: 'sync',
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godot_js_rtc_pc_ice_candidate_add__sig: 'viiii',
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godot_js_rtc_pc_ice_candidate_add: function (p_id, p_mid_name, p_mline_idx, p_sdp) {
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const ref = IDHandler.get(p_id);
|
|
if (!ref) {
|
|
return;
|
|
}
|
|
const sdpMidName = GodotRuntime.parseString(p_mid_name);
|
|
const sdpName = GodotRuntime.parseString(p_sdp);
|
|
ref.addIceCandidate(new RTCIceCandidate({
|
|
'candidate': sdpName,
|
|
'sdpMid': sdpMidName,
|
|
'sdpMlineIndex': p_mline_idx,
|
|
}));
|
|
},
|
|
|
|
godot_js_rtc_pc_datachannel_create__deps: ['$GodotRTCDataChannel'],
|
|
godot_js_rtc_pc_datachannel_create__proxy: 'sync',
|
|
godot_js_rtc_pc_datachannel_create__sig: 'iiii',
|
|
godot_js_rtc_pc_datachannel_create: function (p_id, p_label, p_config) {
|
|
try {
|
|
const ref = IDHandler.get(p_id);
|
|
if (!ref) {
|
|
return 0;
|
|
}
|
|
|
|
const label = GodotRuntime.parseString(p_label);
|
|
const config = JSON.parse(GodotRuntime.parseString(p_config));
|
|
|
|
const channel = ref.createDataChannel(label, config);
|
|
return IDHandler.add(channel);
|
|
} catch (e) {
|
|
GodotRuntime.error(e);
|
|
return 0;
|
|
}
|
|
},
|
|
};
|
|
|
|
autoAddDeps(GodotRTCPeerConnection, '$GodotRTCPeerConnection');
|
|
mergeInto(LibraryManager.library, GodotRTCPeerConnection);
|