mirror of
https://github.com/godotengine/godot.git
synced 2024-12-04 01:52:56 +00:00
315 lines
9.6 KiB
C++
315 lines
9.6 KiB
C++
/*************************************************************************/
|
|
/* webrtc_peer_connection_js.cpp */
|
|
/*************************************************************************/
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
#ifdef JAVASCRIPT_ENABLED
|
|
|
|
#include "webrtc_peer_connection_js.h"
|
|
|
|
#include "webrtc_data_channel_js.h"
|
|
|
|
#include "core/io/json.h"
|
|
#include "emscripten.h"
|
|
|
|
extern "C" {
|
|
EMSCRIPTEN_KEEPALIVE void _emrtc_on_ice_candidate(void *obj, char *p_MidName, int p_MlineIndexName, char *p_sdpName) {
|
|
WebRTCPeerConnectionJS *peer = static_cast<WebRTCPeerConnectionJS *>(obj);
|
|
peer->emit_signal("ice_candidate_created", String(p_MidName), p_MlineIndexName, String(p_sdpName));
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _emrtc_session_description_created(void *obj, char *p_type, char *p_offer) {
|
|
WebRTCPeerConnectionJS *peer = static_cast<WebRTCPeerConnectionJS *>(obj);
|
|
peer->emit_signal("session_description_created", String(p_type), String(p_offer));
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _emrtc_on_connection_state_changed(void *obj) {
|
|
WebRTCPeerConnectionJS *peer = static_cast<WebRTCPeerConnectionJS *>(obj);
|
|
peer->_on_connection_state_changed();
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _emrtc_on_error() {
|
|
ERR_PRINT("RTCPeerConnection error!");
|
|
}
|
|
|
|
EMSCRIPTEN_KEEPALIVE void _emrtc_emit_channel(void *obj, int p_id) {
|
|
WebRTCPeerConnectionJS *peer = static_cast<WebRTCPeerConnectionJS *>(obj);
|
|
peer->emit_signal("data_channel_received", Ref<WebRTCDataChannelJS>(new WebRTCDataChannelJS(p_id)));
|
|
}
|
|
}
|
|
|
|
void _emrtc_create_pc(int p_id, const Dictionary &p_config) {
|
|
String config = JSON::print(p_config);
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
var dict = Module.IDHandler.get($0);
|
|
var c_ptr = dict["ptr"];
|
|
var config = JSON.parse(UTF8ToString($1));
|
|
// Setup local connaction
|
|
var conn = null;
|
|
try {
|
|
conn = new RTCPeerConnection(config);
|
|
} catch (e) {
|
|
console.log(e);
|
|
return;
|
|
}
|
|
conn.oniceconnectionstatechange = function(event) {
|
|
if (!Module.IDHandler.get($0)) return;
|
|
ccall("_emrtc_on_connection_state_changed", "void", ["number"], [c_ptr]);
|
|
};
|
|
conn.onicecandidate = function(event) {
|
|
if (!Module.IDHandler.get($0)) return;
|
|
if (!event.candidate) return;
|
|
|
|
var c = event.candidate;
|
|
// should emit on ice candidate
|
|
ccall("_emrtc_on_ice_candidate",
|
|
"void",
|
|
["number", "string", "number", "string"],
|
|
[c_ptr, c.sdpMid, c.sdpMLineIndex, c.candidate]
|
|
);
|
|
};
|
|
conn.ondatachannel = function (evt) {
|
|
var dict = Module.IDHandler.get($0);
|
|
if (!dict) {
|
|
return;
|
|
}
|
|
var id = Module.IDHandler.add({"channel": evt.channel, "ptr": null});
|
|
ccall("_emrtc_emit_channel",
|
|
"void",
|
|
["number", "number"],
|
|
[c_ptr, id]
|
|
);
|
|
};
|
|
dict["conn"] = conn;
|
|
}, p_id, config.utf8().get_data());
|
|
/* clang-format on */
|
|
}
|
|
|
|
void WebRTCPeerConnectionJS::_on_connection_state_changed() {
|
|
/* clang-format off */
|
|
_conn_state = (ConnectionState)EM_ASM_INT({
|
|
var dict = Module.IDHandler.get($0);
|
|
if (!dict) return 5; // CLOSED
|
|
var conn = dict["conn"];
|
|
switch(conn.iceConnectionState) {
|
|
case "new":
|
|
return 0;
|
|
case "checking":
|
|
return 1;
|
|
case "connected":
|
|
case "completed":
|
|
return 2;
|
|
case "disconnected":
|
|
return 3;
|
|
case "failed":
|
|
return 4;
|
|
case "closed":
|
|
return 5;
|
|
}
|
|
return 5; // CLOSED
|
|
}, _js_id);
|
|
/* clang-format on */
|
|
}
|
|
|
|
void WebRTCPeerConnectionJS::close() {
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
var dict = Module.IDHandler.get($0);
|
|
if (!dict) return;
|
|
if (dict["conn"]) {
|
|
dict["conn"].close();
|
|
}
|
|
}, _js_id);
|
|
/* clang-format on */
|
|
_conn_state = STATE_CLOSED;
|
|
}
|
|
|
|
Error WebRTCPeerConnectionJS::create_offer() {
|
|
ERR_FAIL_COND_V(_conn_state != STATE_NEW, FAILED);
|
|
|
|
_conn_state = STATE_CONNECTING;
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
var dict = Module.IDHandler.get($0);
|
|
var conn = dict["conn"];
|
|
var c_ptr = dict["ptr"];
|
|
var onError = function(error) {
|
|
console.error(error);
|
|
ccall("_emrtc_on_error", "void", [], []);
|
|
};
|
|
var onCreated = function(offer) {
|
|
ccall("_emrtc_session_description_created",
|
|
"void",
|
|
["number", "string", "string"],
|
|
[c_ptr, offer.type, offer.sdp]
|
|
);
|
|
};
|
|
conn.createOffer().then(onCreated).catch(onError);
|
|
}, _js_id);
|
|
/* clang-format on */
|
|
return OK;
|
|
}
|
|
|
|
Error WebRTCPeerConnectionJS::set_local_description(String type, String sdp) {
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
var dict = Module.IDHandler.get($0);
|
|
var conn = dict["conn"];
|
|
var c_ptr = dict["ptr"];
|
|
var type = UTF8ToString($1);
|
|
var sdp = UTF8ToString($2);
|
|
var onError = function(error) {
|
|
console.error(error);
|
|
ccall("_emrtc_on_error", "void", [], []);
|
|
};
|
|
conn.setLocalDescription({
|
|
"sdp": sdp,
|
|
"type": type
|
|
}).catch(onError);
|
|
}, _js_id, type.utf8().get_data(), sdp.utf8().get_data());
|
|
/* clang-format on */
|
|
return OK;
|
|
}
|
|
|
|
Error WebRTCPeerConnectionJS::set_remote_description(String type, String sdp) {
|
|
if (type == "offer") {
|
|
ERR_FAIL_COND_V(_conn_state != STATE_NEW, FAILED);
|
|
_conn_state = STATE_CONNECTING;
|
|
}
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
var dict = Module.IDHandler.get($0);
|
|
var conn = dict["conn"];
|
|
var c_ptr = dict["ptr"];
|
|
var type = UTF8ToString($1);
|
|
var sdp = UTF8ToString($2);
|
|
|
|
var onError = function(error) {
|
|
console.error(error);
|
|
ccall("_emrtc_on_error", "void", [], []);
|
|
};
|
|
var onCreated = function(offer) {
|
|
ccall("_emrtc_session_description_created",
|
|
"void",
|
|
["number", "string", "string"],
|
|
[c_ptr, offer.type, offer.sdp]
|
|
);
|
|
};
|
|
var onSet = function() {
|
|
if (type != "offer") {
|
|
return;
|
|
}
|
|
conn.createAnswer().then(onCreated);
|
|
};
|
|
conn.setRemoteDescription({
|
|
"sdp": sdp,
|
|
"type": type
|
|
}).then(onSet).catch(onError);
|
|
}, _js_id, type.utf8().get_data(), sdp.utf8().get_data());
|
|
/* clang-format on */
|
|
return OK;
|
|
}
|
|
|
|
Error WebRTCPeerConnectionJS::add_ice_candidate(String sdpMidName, int sdpMlineIndexName, String sdpName) {
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
var dict = Module.IDHandler.get($0);
|
|
var conn = dict["conn"];
|
|
var c_ptr = dict["ptr"];
|
|
var sdpMidName = UTF8ToString($1);
|
|
var sdpMlineIndexName = UTF8ToString($2);
|
|
var sdpName = UTF8ToString($3);
|
|
conn.addIceCandidate(new RTCIceCandidate({
|
|
"candidate": sdpName,
|
|
"sdpMid": sdpMidName,
|
|
"sdpMlineIndex": sdpMlineIndexName
|
|
}));
|
|
}, _js_id, sdpMidName.utf8().get_data(), sdpMlineIndexName, sdpName.utf8().get_data());
|
|
/* clang-format on */
|
|
return OK;
|
|
}
|
|
|
|
Error WebRTCPeerConnectionJS::initialize(Dictionary p_config) {
|
|
_emrtc_create_pc(_js_id, p_config);
|
|
return OK;
|
|
}
|
|
|
|
Ref<WebRTCDataChannel> WebRTCPeerConnectionJS::create_data_channel(String p_channel, Dictionary p_channel_config) {
|
|
String config = JSON::print(p_channel_config);
|
|
/* clang-format off */
|
|
int id = EM_ASM_INT({
|
|
try {
|
|
var dict = Module.IDHandler.get($0);
|
|
if (!dict) return 0;
|
|
var label = UTF8ToString($1);
|
|
var config = JSON.parse(UTF8ToString($2));
|
|
var conn = dict["conn"];
|
|
return Module.IDHandler.add({
|
|
"channel": conn.createDataChannel(label, config),
|
|
"ptr": null
|
|
})
|
|
} catch (e) {
|
|
return 0;
|
|
}
|
|
}, _js_id, p_channel.utf8().get_data(), config.utf8().get_data());
|
|
/* clang-format on */
|
|
ERR_FAIL_COND_V(id == 0, nullptr);
|
|
return memnew(WebRTCDataChannelJS(id));
|
|
}
|
|
|
|
Error WebRTCPeerConnectionJS::poll() {
|
|
return OK;
|
|
}
|
|
|
|
WebRTCPeerConnection::ConnectionState WebRTCPeerConnectionJS::get_connection_state() const {
|
|
return _conn_state;
|
|
}
|
|
|
|
WebRTCPeerConnectionJS::WebRTCPeerConnectionJS() {
|
|
_conn_state = STATE_NEW;
|
|
|
|
/* clang-format off */
|
|
_js_id = EM_ASM_INT({
|
|
return Module.IDHandler.add({"conn": null, "ptr": $0});
|
|
}, this);
|
|
/* clang-format on */
|
|
Dictionary config;
|
|
_emrtc_create_pc(_js_id, config);
|
|
}
|
|
|
|
WebRTCPeerConnectionJS::~WebRTCPeerConnectionJS() {
|
|
close();
|
|
/* clang-format off */
|
|
EM_ASM({
|
|
Module.IDHandler.remove($0);
|
|
}, _js_id);
|
|
/* clang-format on */
|
|
};
|
|
#endif
|