/**************************************************************************/
/* library_godot_webrtc.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. */
/**************************************************************************/
const GodotRTCDataChannel = {
// Our socket implementation that forwards events to C++.
$GodotRTCDataChannel__deps: ['$IDHandler', '$GodotRuntime'],
$GodotRTCDataChannel: {
connect: function (p_id, p_on_open, p_on_message, p_on_error, p_on_close) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
ref.binaryType = 'arraybuffer';
ref.onopen = function (event) {
p_on_open();
};
ref.onclose = function (event) {
p_on_close();
};
ref.onerror = function (event) {
p_on_error();
};
ref.onmessage = function (event) {
let buffer;
let is_string = 0;
if (event.data instanceof ArrayBuffer) {
buffer = new Uint8Array(event.data);
} else if (event.data instanceof Blob) {
GodotRuntime.error('Blob type not supported');
return;
} else if (typeof event.data === 'string') {
is_string = 1;
const enc = new TextEncoder('utf-8');
buffer = new Uint8Array(enc.encode(event.data));
} else {
GodotRuntime.error('Unknown message type');
return;
}
const len = buffer.length * buffer.BYTES_PER_ELEMENT;
const out = GodotRuntime.malloc(len);
HEAPU8.set(buffer, out);
p_on_message(out, len, is_string);
GodotRuntime.free(out);
};
},
close: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
ref.onopen = null;
ref.onmessage = null;
ref.onerror = null;
ref.onclose = null;
ref.close();
},
get_prop: function (p_id, p_prop, p_def) {
const ref = IDHandler.get(p_id);
return (ref && ref[p_prop] !== undefined) ? ref[p_prop] : p_def;
},
},
godot_js_rtc_datachannel_ready_state_get__proxy: 'sync',
godot_js_rtc_datachannel_ready_state_get__sig: 'ii',
godot_js_rtc_datachannel_ready_state_get: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref) {
return 3; // CLOSED
}
switch (ref.readyState) {
case 'connecting':
return 0;
case 'open':
return 1;
case 'closing':
return 2;
case 'closed':
default:
return 3;
}
},
godot_js_rtc_datachannel_send__proxy: 'sync',
godot_js_rtc_datachannel_send__sig: 'iiiii',
godot_js_rtc_datachannel_send: function (p_id, p_buffer, p_length, p_raw) {
const ref = IDHandler.get(p_id);
if (!ref) {
return 1;
}
const bytes_array = new Uint8Array(p_length);
for (let i = 0; i < p_length; i++) {
bytes_array[i] = GodotRuntime.getHeapValue(p_buffer + i, 'i8');
}
if (p_raw) {
ref.send(bytes_array.buffer);
} else {
const string = new TextDecoder('utf-8').decode(bytes_array);
ref.send(string);
}
return 0;
},
godot_js_rtc_datachannel_is_ordered__proxy: 'sync',
godot_js_rtc_datachannel_is_ordered__sig: 'ii',
godot_js_rtc_datachannel_is_ordered: function (p_id) {
return GodotRTCDataChannel.get_prop(p_id, 'ordered', true);
},
godot_js_rtc_datachannel_id_get__proxy: 'sync',
godot_js_rtc_datachannel_id_get__sig: 'ii',
godot_js_rtc_datachannel_id_get: function (p_id) {
return GodotRTCDataChannel.get_prop(p_id, 'id', 65535);
},
godot_js_rtc_datachannel_max_packet_lifetime_get__proxy: 'sync',
godot_js_rtc_datachannel_max_packet_lifetime_get__sig: 'ii',
godot_js_rtc_datachannel_max_packet_lifetime_get: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref) {
return 65535;
}
if (ref['maxPacketLifeTime'] !== undefined) {
return ref['maxPacketLifeTime'];
} else if (ref['maxRetransmitTime'] !== undefined) {
// Guess someone didn't appreciate the standardization process.
return ref['maxRetransmitTime'];
}
return 65535;
},
godot_js_rtc_datachannel_max_retransmits_get__proxy: 'sync',
godot_js_rtc_datachannel_max_retransmits_get__sig: 'ii',
godot_js_rtc_datachannel_max_retransmits_get: function (p_id) {
return GodotRTCDataChannel.get_prop(p_id, 'maxRetransmits', 65535);
},
godot_js_rtc_datachannel_is_negotiated__proxy: 'sync',
godot_js_rtc_datachannel_is_negotiated__sig: 'ii',
godot_js_rtc_datachannel_is_negotiated: function (p_id) {
return GodotRTCDataChannel.get_prop(p_id, 'negotiated', 65535);
},
godot_js_rtc_datachannel_get_buffered_amount__proxy: 'sync',
godot_js_rtc_datachannel_get_buffered_amount__sig: 'ii',
godot_js_rtc_datachannel_get_buffered_amount: function (p_id) {
return GodotRTCDataChannel.get_prop(p_id, 'bufferedAmount', 0);
},
godot_js_rtc_datachannel_label_get__proxy: 'sync',
godot_js_rtc_datachannel_label_get__sig: 'ii',
godot_js_rtc_datachannel_label_get: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref || !ref.label) {
return 0;
}
return GodotRuntime.allocString(ref.label);
},
godot_js_rtc_datachannel_protocol_get__sig: 'ii',
godot_js_rtc_datachannel_protocol_get: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref || !ref.protocol) {
return 0;
}
return GodotRuntime.allocString(ref.protocol);
},
godot_js_rtc_datachannel_destroy__proxy: 'sync',
godot_js_rtc_datachannel_destroy__sig: 'vi',
godot_js_rtc_datachannel_destroy: function (p_id) {
GodotRTCDataChannel.close(p_id);
IDHandler.remove(p_id);
},
godot_js_rtc_datachannel_connect__proxy: 'sync',
godot_js_rtc_datachannel_connect__sig: 'viiiiii',
godot_js_rtc_datachannel_connect: function (p_id, p_ref, p_on_open, p_on_message, p_on_error, p_on_close) {
const onopen = GodotRuntime.get_func(p_on_open).bind(null, p_ref);
const onmessage = GodotRuntime.get_func(p_on_message).bind(null, p_ref);
const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_ref);
const onclose = GodotRuntime.get_func(p_on_close).bind(null, p_ref);
GodotRTCDataChannel.connect(p_id, onopen, onmessage, onerror, onclose);
},
godot_js_rtc_datachannel_close__proxy: 'sync',
godot_js_rtc_datachannel_close__sig: 'vi',
godot_js_rtc_datachannel_close: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
GodotRTCDataChannel.close(p_id);
},
};
autoAddDeps(GodotRTCDataChannel, '$GodotRTCDataChannel');
mergeInto(LibraryManager.library, GodotRTCDataChannel);
const GodotRTCPeerConnection = {
$GodotRTCPeerConnection__deps: ['$IDHandler', '$GodotRuntime', '$GodotRTCDataChannel'],
$GodotRTCPeerConnection: {
// Enums
ConnectionState: {
'new': 0,
'connecting': 1,
'connected': 2,
'disconnected': 3,
'failed': 4,
'closed': 5,
},
ConnectionStateCompat: {
// Using values from IceConnectionState for browsers that do not support ConnectionState (notably Firefox).
'new': 0,
'checking': 1,
'connected': 2,
'completed': 2,
'disconnected': 3,
'failed': 4,
'closed': 5,
},
IceGatheringState: {
'new': 0,
'gathering': 1,
'complete': 2,
},
SignalingState: {
'stable': 0,
'have-local-offer': 1,
'have-remote-offer': 2,
'have-local-pranswer': 3,
'have-remote-pranswer': 4,
'closed': 5,
},
// Callbacks
create: function (config, onConnectionChange, onSignalingChange, onIceGatheringChange, onIceCandidate, onDataChannel) {
let conn = null;
try {
conn = new RTCPeerConnection(config);
} catch (e) {
GodotRuntime.error(e);
return 0;
}
const id = IDHandler.add(conn);
if ('connectionState' in conn && conn['connectionState'] !== undefined) {
// Use "connectionState" if supported
conn.onconnectionstatechange = function (event) {
if (!IDHandler.get(id)) {
return;
}
onConnectionChange(GodotRTCPeerConnection.ConnectionState[conn.connectionState] || 0);
};
} else {
// Fall back to using "iceConnectionState" when "connectionState" is not supported (notably Firefox).
conn.oniceconnectionstatechange = function (event) {
if (!IDHandler.get(id)) {
return;
}
onConnectionChange(GodotRTCPeerConnection.ConnectionStateCompat[conn.iceConnectionState] || 0);
};
}
conn.onicegatheringstatechange = function (event) {
if (!IDHandler.get(id)) {
return;
}
onIceGatheringChange(GodotRTCPeerConnection.IceGatheringState[conn.iceGatheringState] || 0);
};
conn.onsignalingstatechange = function (event) {
if (!IDHandler.get(id)) {
return;
}
onSignalingChange(GodotRTCPeerConnection.SignalingState[conn.signalingState] || 0);
};
conn.onicecandidate = function (event) {
if (!IDHandler.get(id)) {
return;
}
const c = event.candidate;
if (!c || !c.candidate) {
return;
}
const candidate_str = GodotRuntime.allocString(c.candidate);
const mid_str = GodotRuntime.allocString(c.sdpMid);
onIceCandidate(mid_str, c.sdpMLineIndex, candidate_str);
GodotRuntime.free(candidate_str);
GodotRuntime.free(mid_str);
};
conn.ondatachannel = function (event) {
if (!IDHandler.get(id)) {
return;
}
const cid = IDHandler.add(event.channel);
onDataChannel(cid);
};
return id;
},
destroy: function (p_id) {
const conn = IDHandler.get(p_id);
if (!conn) {
return;
}
conn.onconnectionstatechange = null;
conn.oniceconnectionstatechange = null;
conn.onicegatheringstatechange = null;
conn.onsignalingstatechange = null;
conn.onicecandidate = null;
conn.ondatachannel = null;
IDHandler.remove(p_id);
},
onsession: function (p_id, callback, session) {
if (!IDHandler.get(p_id)) {
return;
}
const type_str = GodotRuntime.allocString(session.type);
const sdp_str = GodotRuntime.allocString(session.sdp);
callback(type_str, sdp_str);
GodotRuntime.free(type_str);
GodotRuntime.free(sdp_str);
},
onerror: function (p_id, callback, error) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
GodotRuntime.error(error);
callback();
},
},
godot_js_rtc_pc_create__proxy: 'sync',
godot_js_rtc_pc_create__sig: 'iiiiiiii',
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) {
const wrap = function (p_func) {
return GodotRuntime.get_func(p_func).bind(null, p_ref);
};
return GodotRTCPeerConnection.create(
JSON.parse(GodotRuntime.parseString(p_config)),
wrap(p_on_connection_state_change),
wrap(p_on_signaling_state_change),
wrap(p_on_ice_gathering_state_change),
wrap(p_on_ice_candidate),
wrap(p_on_datachannel)
);
},
godot_js_rtc_pc_close__proxy: 'sync',
godot_js_rtc_pc_close__sig: 'vi',
godot_js_rtc_pc_close: function (p_id) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
ref.close();
},
godot_js_rtc_pc_destroy__proxy: 'sync',
godot_js_rtc_pc_destroy__sig: 'vi',
godot_js_rtc_pc_destroy: function (p_id) {
GodotRTCPeerConnection.destroy(p_id);
},
godot_js_rtc_pc_offer_create__proxy: 'sync',
godot_js_rtc_pc_offer_create__sig: 'viiii',
godot_js_rtc_pc_offer_create: function (p_id, p_obj, p_on_session, p_on_error) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
const onsession = GodotRuntime.get_func(p_on_session).bind(null, p_obj);
const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_obj);
ref.createOffer().then(function (session) {
GodotRTCPeerConnection.onsession(p_id, onsession, session);
}).catch(function (error) {
GodotRTCPeerConnection.onerror(p_id, onerror, error);
});
},
godot_js_rtc_pc_local_description_set__proxy: 'sync',
godot_js_rtc_pc_local_description_set__sig: 'viiiii',
godot_js_rtc_pc_local_description_set: function (p_id, p_type, p_sdp, p_obj, p_on_error) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
const type = GodotRuntime.parseString(p_type);
const sdp = GodotRuntime.parseString(p_sdp);
const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_obj);
ref.setLocalDescription({
'sdp': sdp,
'type': type,
}).catch(function (error) {
GodotRTCPeerConnection.onerror(p_id, onerror, error);
});
},
godot_js_rtc_pc_remote_description_set__proxy: 'sync',
godot_js_rtc_pc_remote_description_set__sig: 'viiiiii',
godot_js_rtc_pc_remote_description_set: function (p_id, p_type, p_sdp, p_obj, p_session_created, p_on_error) {
const ref = IDHandler.get(p_id);
if (!ref) {
return;
}
const type = GodotRuntime.parseString(p_type);
const sdp = GodotRuntime.parseString(p_sdp);
const onerror = GodotRuntime.get_func(p_on_error).bind(null, p_obj);
const onsession = GodotRuntime.get_func(p_session_created).bind(null, p_obj);
ref.setRemoteDescription({
'sdp': sdp,
'type': type,
}).then(function () {
if (type !== 'offer') {
return Promise.resolve();
}
return ref.createAnswer().then(function (session) {
GodotRTCPeerConnection.onsession(p_id, onsession, session);
});
}).catch(function (error) {
GodotRTCPeerConnection.onerror(p_id, onerror, error);
});
},
godot_js_rtc_pc_ice_candidate_add__proxy: 'sync',
godot_js_rtc_pc_ice_candidate_add__sig: 'viiii',
godot_js_rtc_pc_ice_candidate_add: function (p_id, p_mid_name, p_mline_idx, p_sdp) {
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);
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