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This applies our existing style guide, and adds a new rule to that style guide for modular components such as platform ports and modules: Includes from the platform port or module ("local" includes) should be listed first in their own block using relative paths, before Godot's "core" includes which use "absolute" (project folder relative) paths, and finally thirdparty includes. Includes in `#ifdef`s come after their relevant section, i.e. the overall structure is: - Local includes * Conditional local includes - Core includes * Conditional core includes - Thirdparty includes * Conditional thirdparty includes
216 lines
7.5 KiB
C++
216 lines
7.5 KiB
C++
/**************************************************************************/
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/* webrtc_data_channel_js.cpp */
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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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#include "webrtc_data_channel_js.h"
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#ifdef WEB_ENABLED
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#include <emscripten.h>
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extern "C" {
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typedef void (*RTCChOnOpen)(void *p_obj);
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typedef void (*RTCChOnMessage)(void *p_obj, const uint8_t *p_buffer, int p_size, int p_is_string);
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typedef void (*RTCChOnClose)(void *p_obj);
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typedef void (*RTCChOnError)(void *p_obj);
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extern int godot_js_rtc_datachannel_ready_state_get(int p_id);
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extern int godot_js_rtc_datachannel_send(int p_id, const uint8_t *p_buffer, int p_length, int p_raw);
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extern int godot_js_rtc_datachannel_is_ordered(int p_id);
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extern int godot_js_rtc_datachannel_id_get(int p_id);
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extern int godot_js_rtc_datachannel_max_packet_lifetime_get(int p_id);
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extern int godot_js_rtc_datachannel_max_retransmits_get(int p_id);
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extern int godot_js_rtc_datachannel_is_negotiated(int p_id);
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extern int godot_js_rtc_datachannel_get_buffered_amount(int p_id);
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extern char *godot_js_rtc_datachannel_label_get(int p_id); // Must free the returned string.
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extern char *godot_js_rtc_datachannel_protocol_get(int p_id); // Must free the returned string.
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extern void godot_js_rtc_datachannel_destroy(int p_id);
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extern void godot_js_rtc_datachannel_connect(int p_id, void *p_obj, RTCChOnOpen p_on_open, RTCChOnMessage p_on_message, RTCChOnError p_on_error, RTCChOnClose p_on_close);
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extern void godot_js_rtc_datachannel_close(int p_id);
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}
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void WebRTCDataChannelJS::_on_open(void *p_obj) {
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WebRTCDataChannelJS *peer = static_cast<WebRTCDataChannelJS *>(p_obj);
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peer->in_buffer.resize(peer->_in_buffer_shift);
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}
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void WebRTCDataChannelJS::_on_close(void *p_obj) {
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WebRTCDataChannelJS *peer = static_cast<WebRTCDataChannelJS *>(p_obj);
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peer->close();
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}
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void WebRTCDataChannelJS::_on_error(void *p_obj) {
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WebRTCDataChannelJS *peer = static_cast<WebRTCDataChannelJS *>(p_obj);
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peer->close();
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}
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void WebRTCDataChannelJS::_on_message(void *p_obj, const uint8_t *p_data, int p_size, int p_is_string) {
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WebRTCDataChannelJS *peer = static_cast<WebRTCDataChannelJS *>(p_obj);
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RingBuffer<uint8_t> &in_buffer = peer->in_buffer;
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ERR_FAIL_COND_MSG(in_buffer.space_left() < (int)(p_size + 5), "Buffer full! Dropping data.");
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uint8_t is_string = p_is_string ? 1 : 0;
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in_buffer.write((uint8_t *)&p_size, 4);
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in_buffer.write((uint8_t *)&is_string, 1);
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in_buffer.write(p_data, p_size);
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peer->queue_count++;
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}
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void WebRTCDataChannelJS::close() {
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in_buffer.resize(0);
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queue_count = 0;
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_was_string = false;
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godot_js_rtc_datachannel_close(_js_id);
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}
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Error WebRTCDataChannelJS::poll() {
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return OK;
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}
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WebRTCDataChannelJS::ChannelState WebRTCDataChannelJS::get_ready_state() const {
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return (ChannelState)godot_js_rtc_datachannel_ready_state_get(_js_id);
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}
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int WebRTCDataChannelJS::get_available_packet_count() const {
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return queue_count;
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}
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Error WebRTCDataChannelJS::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
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ERR_FAIL_COND_V(get_ready_state() != STATE_OPEN, ERR_UNCONFIGURED);
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if (queue_count == 0) {
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return ERR_UNAVAILABLE;
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}
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uint32_t to_read = 0;
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uint32_t left = 0;
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uint8_t is_string = 0;
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r_buffer_size = 0;
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in_buffer.read((uint8_t *)&to_read, 4);
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--queue_count;
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left = in_buffer.data_left();
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if (left < to_read + 1) {
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in_buffer.advance_read(left);
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return FAILED;
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}
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in_buffer.read(&is_string, 1);
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_was_string = is_string == 1;
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in_buffer.read(packet_buffer, to_read);
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*r_buffer = packet_buffer;
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r_buffer_size = to_read;
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return OK;
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}
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Error WebRTCDataChannelJS::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
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ERR_FAIL_COND_V(get_ready_state() != STATE_OPEN, ERR_UNCONFIGURED);
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int is_bin = _write_mode == WebRTCDataChannel::WRITE_MODE_BINARY ? 1 : 0;
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godot_js_rtc_datachannel_send(_js_id, p_buffer, p_buffer_size, is_bin);
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return OK;
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}
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int WebRTCDataChannelJS::get_max_packet_size() const {
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return 1200;
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}
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void WebRTCDataChannelJS::set_write_mode(WriteMode p_mode) {
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_write_mode = p_mode;
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}
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WebRTCDataChannel::WriteMode WebRTCDataChannelJS::get_write_mode() const {
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return _write_mode;
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}
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bool WebRTCDataChannelJS::was_string_packet() const {
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return _was_string;
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}
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String WebRTCDataChannelJS::get_label() const {
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return _label;
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}
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bool WebRTCDataChannelJS::is_ordered() const {
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return godot_js_rtc_datachannel_is_ordered(_js_id);
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}
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int WebRTCDataChannelJS::get_id() const {
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return godot_js_rtc_datachannel_id_get(_js_id);
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}
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int WebRTCDataChannelJS::get_max_packet_life_time() const {
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return godot_js_rtc_datachannel_max_packet_lifetime_get(_js_id);
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}
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int WebRTCDataChannelJS::get_max_retransmits() const {
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return godot_js_rtc_datachannel_max_retransmits_get(_js_id);
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}
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String WebRTCDataChannelJS::get_protocol() const {
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return _protocol;
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}
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bool WebRTCDataChannelJS::is_negotiated() const {
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return godot_js_rtc_datachannel_is_negotiated(_js_id);
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}
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int WebRTCDataChannelJS::get_buffered_amount() const {
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return godot_js_rtc_datachannel_get_buffered_amount(_js_id);
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}
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WebRTCDataChannelJS::WebRTCDataChannelJS() {
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}
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WebRTCDataChannelJS::WebRTCDataChannelJS(int js_id) {
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_js_id = js_id;
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godot_js_rtc_datachannel_connect(js_id, this, &_on_open, &_on_message, &_on_error, &_on_close);
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// Parse label
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char *label = godot_js_rtc_datachannel_label_get(js_id);
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if (label) {
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_label.parse_utf8(label);
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free(label);
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}
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char *protocol = godot_js_rtc_datachannel_protocol_get(js_id);
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if (protocol) {
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_protocol.parse_utf8(protocol);
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free(protocol);
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}
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}
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WebRTCDataChannelJS::~WebRTCDataChannelJS() {
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close();
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godot_js_rtc_datachannel_destroy(_js_id);
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}
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#endif
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