0bbadd6883
After changing the default visibility to hidden to avoid generating thousands of import/export symbols (browsers have a hard limit of 10k), explicitly setting visibility for "boundary functions" (i.e. wasm callbacks called by JS via pointer) is required to ensure the function can be retrieved via pointer from the function table.
115 lines
4.9 KiB
C++
115 lines
4.9 KiB
C++
/**************************************************************************/
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/* os_web.h */
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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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#ifndef OS_WEB_H
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#define OS_WEB_H
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#include "audio_driver_web.h"
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#include "godot_js.h"
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#include "core/input/input.h"
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#include "drivers/unix/os_unix.h"
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#include "servers/audio_server.h"
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#include <emscripten/html5.h>
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class OS_Web : public OS_Unix {
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MainLoop *main_loop = nullptr;
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List<AudioDriverWeb *> audio_drivers;
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bool idb_is_syncing = false;
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bool idb_available = false;
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bool idb_needs_sync = false;
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bool pwa_is_waiting = false;
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WASM_EXPORT static void main_loop_callback();
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WASM_EXPORT static void file_access_close_callback(const String &p_file, int p_flags);
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WASM_EXPORT static void fs_sync_callback();
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WASM_EXPORT static void update_pwa_state_callback();
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protected:
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void initialize() override;
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void set_main_loop(MainLoop *p_main_loop) override;
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void delete_main_loop() override;
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void finalize() override;
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bool _check_internal_feature_support(const String &p_feature) override;
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public:
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// Override return type to make writing static callbacks less tedious.
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static OS_Web *get_singleton();
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bool pwa_needs_update() const { return pwa_is_waiting; }
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Error pwa_update();
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void force_fs_sync();
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void initialize_joypads() override;
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MainLoop *get_main_loop() const override;
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bool main_loop_iterate();
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Error execute(const String &p_path, const List<String> &p_arguments, String *r_pipe = nullptr, int *r_exitcode = nullptr, bool read_stderr = false, Mutex *p_pipe_mutex = nullptr, bool p_open_console = false) override;
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Error create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id = nullptr, bool p_open_console = false) override;
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Error kill(const ProcessID &p_pid) override;
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int get_process_id() const override;
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bool is_process_running(const ProcessID &p_pid) const override;
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int get_processor_count() const override;
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int get_default_thread_pool_size() const override { return 1; }
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String get_executable_path() const override;
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Error shell_open(String p_uri) override;
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String get_name() const override;
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// Override default OS implementation which would block the main thread with delay_usec.
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// Implemented in web_main.cpp loop callback instead.
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void add_frame_delay(bool p_can_draw) override {}
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void vibrate_handheld(int p_duration_ms) override;
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String get_cache_path() const override;
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String get_config_path() const override;
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String get_data_path() const override;
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String get_user_data_dir() const override;
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bool is_userfs_persistent() const override;
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void alert(const String &p_alert, const String &p_title = "ALERT!") override;
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Error open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path = false, String *r_resolved_path = nullptr) override;
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void resume_audio();
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OS_Web();
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};
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#endif // OS_WEB_H
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