e52ed6d89e
The API is implemented in javascript, and generates C functions that can be called from godot. This allows much cleaner code replacing all `EM_ASM` calls in our C++ code with plain C function calls. This also gets rid of few hacks and comes with few optimizations (e.g. custom cursor shapes should be much faster now).
314 lines
9.0 KiB
JavaScript
314 lines
9.0 KiB
JavaScript
/*************************************************************************/
|
|
/* library_godot_os.js */
|
|
/*************************************************************************/
|
|
/* 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. */
|
|
/*************************************************************************/
|
|
|
|
const IDHandler = {
|
|
$IDHandler: {
|
|
_last_id: 0,
|
|
_references: {},
|
|
|
|
get: function(p_id) {
|
|
return IDHandler._references[p_id];
|
|
},
|
|
|
|
add: function(p_data) {
|
|
const id = ++IDHandler._last_id;
|
|
IDHandler._references[id] = p_data;
|
|
return id;
|
|
},
|
|
|
|
remove: function(p_id) {
|
|
delete IDHandler._references[p_id];
|
|
},
|
|
},
|
|
};
|
|
|
|
autoAddDeps(IDHandler, "$IDHandler");
|
|
mergeInto(LibraryManager.library, IDHandler);
|
|
|
|
const GodotConfig = {
|
|
|
|
$GodotConfig__postset: 'Module["initConfig"] = GodotConfig.init_config;',
|
|
$GodotConfig: {
|
|
canvas: null,
|
|
locale: "en",
|
|
resize_on_start: false,
|
|
on_execute: null,
|
|
|
|
init_config: function(p_opts) {
|
|
GodotConfig.resize_on_start = p_opts['resizeCanvasOnStart'] ? true : false;
|
|
GodotConfig.canvas = p_opts['canvas'];
|
|
GodotConfig.locale = p_opts['locale'] || GodotConfig.locale;
|
|
GodotConfig.on_execute = p_opts['onExecute'];
|
|
// This is called by emscripten, even if undocumented.
|
|
Module['onExit'] = p_opts['onExit'];
|
|
},
|
|
},
|
|
|
|
godot_js_config_canvas_id_get: function(p_ptr, p_ptr_max) {
|
|
stringToUTF8('#' + GodotConfig.canvas.id, p_ptr, p_ptr_max);
|
|
},
|
|
|
|
godot_js_config_locale_get: function(p_ptr, p_ptr_max) {
|
|
stringToUTF8(GodotConfig.locale, p_ptr, p_ptr_max);
|
|
},
|
|
|
|
godot_js_config_is_resize_on_start: function() {
|
|
return GodotConfig.resize_on_start ? 1 : 0;
|
|
},
|
|
};
|
|
|
|
autoAddDeps(GodotConfig, '$GodotConfig');
|
|
mergeInto(LibraryManager.library, GodotConfig);
|
|
|
|
const GodotFS = {
|
|
$GodotFS__deps: ['$FS', '$IDBFS'],
|
|
$GodotFS__postset: [
|
|
'Module["initFS"] = GodotFS.init;',
|
|
'Module["deinitFS"] = GodotFS.deinit;',
|
|
'Module["copyToFS"] = GodotFS.copy_to_fs;',
|
|
].join(''),
|
|
$GodotFS: {
|
|
_idbfs: false,
|
|
_syncing: false,
|
|
_mount_points: [],
|
|
|
|
is_persistent: function() {
|
|
return GodotFS._idbfs ? 1 : 0;
|
|
},
|
|
|
|
// Initialize godot file system, setting up persistent paths.
|
|
// Returns a promise that resolves when the FS is ready.
|
|
// We keep track of mount_points, so that we can properly close the IDBFS
|
|
// since emscripten is not doing it by itself. (emscripten GH#12516).
|
|
init: function(persistentPaths) {
|
|
GodotFS._idbfs = false;
|
|
if (!Array.isArray(persistentPaths)) {
|
|
return Promise.reject(new Error('Persistent paths must be an array'));
|
|
}
|
|
if (!persistentPaths.length) {
|
|
return Promise.resolve();
|
|
}
|
|
GodotFS._mount_points = persistentPaths.slice();
|
|
|
|
function createRecursive(dir) {
|
|
try {
|
|
FS.stat(dir);
|
|
} catch (e) {
|
|
if (e.errno !== ERRNO_CODES.ENOENT) {
|
|
throw e;
|
|
}
|
|
FS.mkdirTree(dir);
|
|
}
|
|
}
|
|
|
|
GodotFS._mount_points.forEach(function(path) {
|
|
createRecursive(path);
|
|
FS.mount(IDBFS, {}, path);
|
|
});
|
|
return new Promise(function(resolve, reject) {
|
|
FS.syncfs(true, function(err) {
|
|
if (err) {
|
|
GodotFS._mount_points = [];
|
|
GodotFS._idbfs = false;
|
|
console.log("IndexedDB not available: " + err.message);
|
|
} else {
|
|
GodotFS._idbfs = true;
|
|
}
|
|
resolve(err);
|
|
});
|
|
});
|
|
},
|
|
|
|
// Deinit godot file system, making sure to unmount file systems, and close IDBFS(s).
|
|
deinit: function() {
|
|
GodotFS._mount_points.forEach(function(path) {
|
|
try {
|
|
FS.unmount(path);
|
|
} catch (e) {
|
|
console.log("Already unmounted", e);
|
|
}
|
|
if (GodotFS._idbfs && IDBFS.dbs[path]) {
|
|
IDBFS.dbs[path].close();
|
|
delete IDBFS.dbs[path];
|
|
}
|
|
});
|
|
GodotFS._mount_points = [];
|
|
GodotFS._idbfs = false;
|
|
GodotFS._syncing = false;
|
|
},
|
|
|
|
sync: function() {
|
|
if (GodotFS._syncing) {
|
|
err('Already syncing!');
|
|
return Promise.resolve();
|
|
}
|
|
GodotFS._syncing = true;
|
|
return new Promise(function (resolve, reject) {
|
|
FS.syncfs(false, function(error) {
|
|
if (error) {
|
|
err('Failed to save IDB file system: ' + error.message);
|
|
}
|
|
GodotFS._syncing = false;
|
|
resolve(error);
|
|
});
|
|
});
|
|
},
|
|
|
|
// Copies a buffer to the internal file system. Creating directories recursively.
|
|
copy_to_fs: function(path, buffer) {
|
|
const idx = path.lastIndexOf("/");
|
|
let dir = "/";
|
|
if (idx > 0) {
|
|
dir = path.slice(0, idx);
|
|
}
|
|
try {
|
|
FS.stat(dir);
|
|
} catch (e) {
|
|
if (e.errno !== ERRNO_CODES.ENOENT) {
|
|
throw e;
|
|
}
|
|
FS.mkdirTree(dir);
|
|
}
|
|
FS.writeFile(path, new Uint8Array(buffer), {'flags': 'wx+'});
|
|
},
|
|
},
|
|
};
|
|
mergeInto(LibraryManager.library, GodotFS);
|
|
|
|
const GodotOS = {
|
|
$GodotOS__deps: ['$GodotFS'],
|
|
$GodotOS__postset: [
|
|
'Module["request_quit"] = function() { GodotOS.request_quit() };',
|
|
'GodotOS._fs_sync_promise = Promise.resolve();',
|
|
].join(''),
|
|
$GodotOS: {
|
|
|
|
request_quit: function() {},
|
|
_async_cbs: [],
|
|
_fs_sync_promise: null,
|
|
|
|
get_func: function(ptr) {
|
|
return wasmTable.get(ptr);
|
|
},
|
|
|
|
atexit: function(p_promise_cb) {
|
|
GodotOS._async_cbs.push(p_promise_cb);
|
|
},
|
|
|
|
finish_async: function(callback) {
|
|
GodotOS._fs_sync_promise.then(function(err) {
|
|
const promises = [];
|
|
GodotOS._async_cbs.forEach(function(cb) {
|
|
promises.push(new Promise(cb));
|
|
});
|
|
return Promise.all(promises);
|
|
}).then(function() {
|
|
return GodotFS.sync(); // Final FS sync.
|
|
}).then(function(err) {
|
|
// Always deferred.
|
|
setTimeout(function() {
|
|
callback();
|
|
}, 0);
|
|
});
|
|
},
|
|
|
|
allocString: function(p_str) {
|
|
const length = lengthBytesUTF8(p_str)+1;
|
|
const c_str = _malloc(length);
|
|
stringToUTF8(p_str, c_str, length);
|
|
return c_str;
|
|
},
|
|
|
|
allocStringArray: function(strings) {
|
|
const size = strings.length;
|
|
const c_ptr = _malloc(size * 4);
|
|
for (let i = 0; i < size; i++) {
|
|
HEAP32[(c_ptr >> 2) + i] = GodotOS.allocString(strings[i]);
|
|
}
|
|
return c_ptr;
|
|
},
|
|
|
|
freeStringArray: function(c_ptr, size) {
|
|
for (let i = 0; i < size; i++) {
|
|
_free(HEAP32[(c_ptr >> 2) + i]);
|
|
}
|
|
_free(c_ptr);
|
|
},
|
|
|
|
heapSub: function(heap, ptr, size) {
|
|
const bytes = heap.BYTES_PER_ELEMENT;
|
|
return heap.subarray(ptr / bytes, ptr / bytes + size);
|
|
},
|
|
|
|
heapCopy: function(heap, ptr, size) {
|
|
const bytes = heap.BYTES_PER_ELEMENT;
|
|
return heap.slice(ptr / bytes, ptr / bytes + size);
|
|
},
|
|
},
|
|
|
|
godot_js_os_finish_async: function(p_callback) {
|
|
const func = GodotOS.get_func(p_callback);
|
|
GodotOS.finish_async(func);
|
|
},
|
|
|
|
godot_js_os_request_quit_cb: function(p_callback) {
|
|
GodotOS.request_quit = GodotOS.get_func(p_callback);
|
|
},
|
|
|
|
godot_js_os_fs_is_persistent: function() {
|
|
return GodotFS.is_persistent();
|
|
},
|
|
|
|
godot_js_os_fs_sync: function(callback) {
|
|
const func = GodotOS.get_func(callback);
|
|
GodotOS._fs_sync_promise = GodotFS.sync();
|
|
GodotOS._fs_sync_promise.then(function(err) {
|
|
func();
|
|
});
|
|
},
|
|
|
|
godot_js_os_execute: function(p_json) {
|
|
const json_args = UTF8ToString(p_json);
|
|
const args = JSON.parse(json_args);
|
|
if (GodotConfig.on_execute) {
|
|
GodotConfig.on_execute(args);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
},
|
|
|
|
godot_js_os_shell_open: function(p_uri) {
|
|
window.open(UTF8ToString(p_uri), '_blank');
|
|
},
|
|
};
|
|
|
|
autoAddDeps(GodotOS, '$GodotOS');
|
|
mergeInto(LibraryManager.library, GodotOS);
|