three
Version:
JavaScript 3D library
1,315 lines (1,122 loc) • 321 kB
JavaScript
var rhino3dm = (() => {
var _scriptDir = import.meta.url;
return (
async function(config) {
var rhino3dm = config || {};
// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(Module) { ..generated code.. }
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = typeof rhino3dm != 'undefined' ? rhino3dm : {};
// See https://caniuse.com/mdn-javascript_builtins_object_assign
// See https://caniuse.com/mdn-javascript_builtins_bigint64array
// Set up the promise that indicates the Module is initialized
var readyPromiseResolve, readyPromiseReject;
Module['ready'] = new Promise(function(resolve, reject) {
readyPromiseResolve = resolve;
readyPromiseReject = reject;
});
["_main","_fflush","___getTypeName","__embind_initialize_bindings","onRuntimeInitialized"].forEach((prop) => {
if (!Object.getOwnPropertyDescriptor(Module['ready'], prop)) {
Object.defineProperty(Module['ready'], prop, {
get: () => abort('You are getting ' + prop + ' on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js'),
set: () => abort('You are setting ' + prop + ' on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js'),
});
}
});
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// {{PRE_JSES}}
// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = Object.assign({}, Module);
var arguments_ = [];
var thisProgram = './this.program';
var quit_ = (status, toThrow) => {
throw toThrow;
};
// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == 'object';
var ENVIRONMENT_IS_WORKER = typeof importScripts == 'function';
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string';
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
if (Module['ENVIRONMENT']) {
throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)');
}
// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';
function locateFile(path) {
if (Module['locateFile']) {
return Module['locateFile'](path, scriptDirectory);
}
return scriptDirectory + path;
}
// Hooks that are implemented differently in different runtime environments.
var read_,
readAsync,
readBinary,
setWindowTitle;
// Normally we don't log exceptions but instead let them bubble out the top
// level where the embedding environment (e.g. the browser) can handle
// them.
// However under v8 and node we sometimes exit the process direcly in which case
// its up to use us to log the exception before exiting.
// If we fix https://github.com/emscripten-core/emscripten/issues/15080
// this may no longer be needed under node.
function logExceptionOnExit(e) {
if (e instanceof ExitStatus) return;
let toLog = e;
if (e && typeof e == 'object' && e.stack) {
toLog = [e, e.stack];
}
err('exiting due to exception: ' + toLog);
}
if (ENVIRONMENT_IS_NODE) {
if (typeof process == 'undefined' || !process.release || process.release.name !== 'node') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
// `require()` is no-op in an ESM module, use `createRequire()` to construct
// the require()` function. This is only necessary for multi-environment
// builds, `-sENVIRONMENT=node` emits a static import declaration instead.
// TODO: Swap all `require()`'s with `import()`'s?
const { createRequire } = await import('module');
/** @suppress{duplicate} */
var require = createRequire(import.meta.url);
// These modules will usually be used on Node.js. Load them eagerly to avoid
// the complexity of lazy-loading.
var fs = require('fs');
var nodePath = require('path');
if (ENVIRONMENT_IS_WORKER) {
scriptDirectory = nodePath.dirname(scriptDirectory) + '/';
} else {
// EXPORT_ES6 + ENVIRONMENT_IS_NODE always requires use of import.meta.url,
// since there's no way getting the current absolute path of the module when
// support for that is not available.
scriptDirectory = require('url').fileURLToPath(new URL('./', import.meta.url)); // includes trailing slash
}
// include: node_shell_read.js
read_ = (filename, binary) => {
// We need to re-wrap `file://` strings to URLs. Normalizing isn't
// necessary in that case, the path should already be absolute.
filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
return fs.readFileSync(filename, binary ? undefined : 'utf8');
};
readBinary = (filename) => {
var ret = read_(filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret);
}
assert(ret.buffer);
return ret;
};
readAsync = (filename, onload, onerror) => {
// See the comment in the `read_` function.
filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
fs.readFile(filename, function(err, data) {
if (err) onerror(err);
else onload(data.buffer);
});
};
// end include: node_shell_read.js
if (process['argv'].length > 1) {
thisProgram = process['argv'][1].replace(/\\/g, '/');
}
arguments_ = process['argv'].slice(2);
// MODULARIZE will export the module in the proper place outside, we don't need to export here
process['on']('uncaughtException', function(ex) {
// suppress ExitStatus exceptions from showing an error
if (!(ex instanceof ExitStatus)) {
throw ex;
}
});
// Without this older versions of node (< v15) will log unhandled rejections
// but return 0, which is not normally the desired behaviour. This is
// not be needed with node v15 and about because it is now the default
// behaviour:
// See https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode
process['on']('unhandledRejection', function(reason) { throw reason; });
quit_ = (status, toThrow) => {
if (keepRuntimeAlive()) {
process['exitCode'] = status;
throw toThrow;
}
logExceptionOnExit(toThrow);
process['exit'](status);
};
Module['inspect'] = function () { return '[Emscripten Module object]'; };
} else
if (ENVIRONMENT_IS_SHELL) {
if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
if (typeof read != 'undefined') {
read_ = function shell_read(f) {
return read(f);
};
}
readBinary = function readBinary(f) {
let data;
if (typeof readbuffer == 'function') {
return new Uint8Array(readbuffer(f));
}
data = read(f, 'binary');
assert(typeof data == 'object');
return data;
};
readAsync = function readAsync(f, onload, onerror) {
setTimeout(() => onload(readBinary(f)), 0);
};
if (typeof scriptArgs != 'undefined') {
arguments_ = scriptArgs;
} else if (typeof arguments != 'undefined') {
arguments_ = arguments;
}
if (typeof quit == 'function') {
quit_ = (status, toThrow) => {
logExceptionOnExit(toThrow);
quit(status);
};
}
if (typeof print != 'undefined') {
// Prefer to use print/printErr where they exist, as they usually work better.
if (typeof console == 'undefined') console = /** @type{!Console} */({});
console.log = /** @type{!function(this:Console, ...*): undefined} */ (print);
console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print);
}
} else
// Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled
scriptDirectory = self.location.href;
} else if (typeof document != 'undefined' && document.currentScript) { // web
scriptDirectory = document.currentScript.src;
}
// When MODULARIZE, this JS may be executed later, after document.currentScript
// is gone, so we saved it, and we use it here instead of any other info.
if (_scriptDir) {
scriptDirectory = _scriptDir;
}
// blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
// otherwise, slice off the final part of the url to find the script directory.
// if scriptDirectory does not contain a slash, lastIndexOf will return -1,
// and scriptDirectory will correctly be replaced with an empty string.
// If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
// they are removed because they could contain a slash.
if (scriptDirectory.indexOf('blob:') !== 0) {
scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf('/')+1);
} else {
scriptDirectory = '';
}
if (!(typeof window == 'object' || typeof importScripts == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
// Differentiate the Web Worker from the Node Worker case, as reading must
// be done differently.
{
// include: web_or_worker_shell_read.js
read_ = (url) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.send(null);
return xhr.responseText;
}
if (ENVIRONMENT_IS_WORKER) {
readBinary = (url) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.responseType = 'arraybuffer';
xhr.send(null);
return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
};
}
readAsync = (url, onload, onerror) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = () => {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
onload(xhr.response);
return;
}
onerror();
};
xhr.onerror = onerror;
xhr.send(null);
}
// end include: web_or_worker_shell_read.js
}
setWindowTitle = (title) => document.title = title;
} else
{
throw new Error('environment detection error');
}
var out = Module['print'] || console.log.bind(console);
var err = Module['printErr'] || console.warn.bind(console);
// Merge back in the overrides
Object.assign(Module, moduleOverrides);
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = null;
checkIncomingModuleAPI();
// Emit code to handle expected values on the Module object. This applies Module.x
// to the proper local x. This has two benefits: first, we only emit it if it is
// expected to arrive, and second, by using a local everywhere else that can be
// minified.
if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_');
if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram');
if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_');
// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// Assertions on removed incoming Module JS APIs.
assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)');
assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)');
assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)');
assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)');
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
legacyModuleProp('read', 'read_');
legacyModuleProp('readAsync', 'readAsync');
legacyModuleProp('readBinary', 'readBinary');
legacyModuleProp('setWindowTitle', 'setWindowTitle');
var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js';
var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js';
var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';
assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add 'shell' to `-sENVIRONMENT` to enable.");
// include: support.js
var STACK_ALIGN = 16;
var POINTER_SIZE = 4;
function getNativeTypeSize(type) {
switch (type) {
case 'i1': case 'i8': case 'u8': return 1;
case 'i16': case 'u16': return 2;
case 'i32': case 'u32': return 4;
case 'i64': case 'u64': return 8;
case 'float': return 4;
case 'double': return 8;
default: {
if (type[type.length - 1] === '*') {
return POINTER_SIZE;
}
if (type[0] === 'i') {
const bits = Number(type.substr(1));
assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type);
return bits / 8;
}
return 0;
}
}
}
// include: runtime_debug.js
function legacyModuleProp(prop, newName) {
if (!Object.getOwnPropertyDescriptor(Module, prop)) {
Object.defineProperty(Module, prop, {
configurable: true,
get: function() {
abort('Module.' + prop + ' has been replaced with plain ' + newName + ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)');
}
});
}
}
function ignoredModuleProp(prop) {
if (Object.getOwnPropertyDescriptor(Module, prop)) {
abort('`Module.' + prop + '` was supplied but `' + prop + '` not included in INCOMING_MODULE_JS_API');
}
}
// forcing the filesystem exports a few things by default
function isExportedByForceFilesystem(name) {
return name === 'FS_createPath' ||
name === 'FS_createDataFile' ||
name === 'FS_createPreloadedFile' ||
name === 'FS_unlink' ||
name === 'addRunDependency' ||
// The old FS has some functionality that WasmFS lacks.
name === 'FS_createLazyFile' ||
name === 'FS_createDevice' ||
name === 'removeRunDependency';
}
function missingGlobal(sym, msg) {
Object.defineProperty(globalThis, sym, {
configurable: true,
get: function() {
warnOnce('`' + sym + '` is not longer defined by emscripten. ' + msg);
return undefined;
}
});
}
missingGlobal('buffer', 'Please use HEAP8.buffer or wasmMemory.buffer');
function missingLibrarySymbol(sym) {
if (typeof globalThis !== 'undefined' && !Object.getOwnPropertyDescriptor(globalThis, sym)) {
Object.defineProperty(globalThis, sym, {
configurable: true,
get: function() {
// Can't `abort()` here because it would break code that does runtime
// checks. e.g. `if (typeof SDL === 'undefined')`.
var msg = '`' + sym + '` is a library symbol and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line';
// DEFAULT_LIBRARY_FUNCS_TO_INCLUDE requires the name as it appears in
// library.js, which means $name for a JS name with no prefix, or name
// for a JS name like _name.
var librarySymbol = sym;
if (!librarySymbol.startsWith('_')) {
librarySymbol = '$' + sym;
}
msg += " (e.g. -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE=" + librarySymbol + ")";
if (isExportedByForceFilesystem(sym)) {
msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
}
warnOnce(msg);
return undefined;
}
});
}
}
function unexportedRuntimeSymbol(sym) {
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
Object.defineProperty(Module, sym, {
configurable: true,
get: function() {
var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)";
if (isExportedByForceFilesystem(sym)) {
msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
}
abort(msg);
}
});
}
}
// end include: runtime_debug.js
// end include: support.js
// === Preamble library stuff ===
// Documentation for the public APIs defined in this file must be updated in:
// site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
// site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
var wasmBinary;
if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary');
var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime');
if (typeof WebAssembly != 'object') {
abort('no native wasm support detected');
}
// Wasm globals
var wasmMemory;
//========================================
// Runtime essentials
//========================================
// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;
// set by exit() and abort(). Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;
/** @type {function(*, string=)} */
function assert(condition, text) {
if (!condition) {
abort('Assertion failed' + (text ? ': ' + text : ''));
}
}
// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.
// include: runtime_strings.js
// runtime_strings.js: String related runtime functions that are part of both
// MINIMAL_RUNTIME and regular runtime.
var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined;
/**
* Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
* array that contains uint8 values, returns a copy of that string as a
* Javascript String object.
* heapOrArray is either a regular array, or a JavaScript typed array view.
* @param {number} idx
* @param {number=} maxBytesToRead
* @return {string}
*/
function UTF8ArrayToString(heapOrArray, idx, maxBytesToRead) {
var endIdx = idx + maxBytesToRead;
var endPtr = idx;
// TextDecoder needs to know the byte length in advance, it doesn't stop on
// null terminator by itself. Also, use the length info to avoid running tiny
// strings through TextDecoder, since .subarray() allocates garbage.
// (As a tiny code save trick, compare endPtr against endIdx using a negation,
// so that undefined means Infinity)
while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
}
var str = '';
// If building with TextDecoder, we have already computed the string length
// above, so test loop end condition against that
while (idx < endPtr) {
// For UTF8 byte structure, see:
// http://en.wikipedia.org/wiki/UTF-8#Description
// https://www.ietf.org/rfc/rfc2279.txt
// https://tools.ietf.org/html/rfc3629
var u0 = heapOrArray[idx++];
if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
var u1 = heapOrArray[idx++] & 63;
if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
var u2 = heapOrArray[idx++] & 63;
if ((u0 & 0xF0) == 0xE0) {
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
} else {
if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte ' + ptrToString(u0) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!');
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
}
if (u0 < 0x10000) {
str += String.fromCharCode(u0);
} else {
var ch = u0 - 0x10000;
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
}
}
return str;
}
/**
* Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
* emscripten HEAP, returns a copy of that string as a Javascript String object.
*
* @param {number} ptr
* @param {number=} maxBytesToRead - An optional length that specifies the
* maximum number of bytes to read. You can omit this parameter to scan the
* string until the first \0 byte. If maxBytesToRead is passed, and the string
* at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
* string will cut short at that byte index (i.e. maxBytesToRead will not
* produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing
* frequent uses of UTF8ToString() with and without maxBytesToRead may throw
* JS JIT optimizations off, so it is worth to consider consistently using one
* @return {string}
*/
function UTF8ToString(ptr, maxBytesToRead) {
return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
}
/**
* Copies the given Javascript String object 'str' to the given byte array at
* address 'outIdx', encoded in UTF8 form and null-terminated. The copy will
* require at most str.length*4+1 bytes of space in the HEAP. Use the function
* lengthBytesUTF8 to compute the exact number of bytes (excluding null
* terminator) that this function will write.
*
* @param {string} str - The Javascript string to copy.
* @param {ArrayBufferView|Array<number>} heap - The array to copy to. Each
* index in this array is assumed
* to be one 8-byte element.
* @param {number} outIdx - The starting offset in the array to begin the copying.
* @param {number} maxBytesToWrite - The maximum number of bytes this function
* can write to the array. This count should
* include the null terminator, i.e. if
* maxBytesToWrite=1, only the null terminator
* will be written and nothing else.
* maxBytesToWrite=0 does not write any bytes
* to the output, not even the null
* terminator.
* @return {number} The number of bytes written, EXCLUDING the null terminator.
*/
function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {
// Parameter maxBytesToWrite is not optional. Negative values, 0, null,
// undefined and false each don't write out any bytes.
if (!(maxBytesToWrite > 0))
return 0;
var startIdx = outIdx;
var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
// unit, not a Unicode code point of the character! So decode
// UTF16->UTF32->UTF8.
// See http://unicode.org/faq/utf_bom.html#utf16-3
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
// and https://www.ietf.org/rfc/rfc2279.txt
// and https://tools.ietf.org/html/rfc3629
var u = str.charCodeAt(i); // possibly a lead surrogate
if (u >= 0xD800 && u <= 0xDFFF) {
var u1 = str.charCodeAt(++i);
u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);
}
if (u <= 0x7F) {
if (outIdx >= endIdx) break;
heap[outIdx++] = u;
} else if (u <= 0x7FF) {
if (outIdx + 1 >= endIdx) break;
heap[outIdx++] = 0xC0 | (u >> 6);
heap[outIdx++] = 0x80 | (u & 63);
} else if (u <= 0xFFFF) {
if (outIdx + 2 >= endIdx) break;
heap[outIdx++] = 0xE0 | (u >> 12);
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
heap[outIdx++] = 0x80 | (u & 63);
} else {
if (outIdx + 3 >= endIdx) break;
if (u > 0x10FFFF) warnOnce('Invalid Unicode code point ' + ptrToString(u) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).');
heap[outIdx++] = 0xF0 | (u >> 18);
heap[outIdx++] = 0x80 | ((u >> 12) & 63);
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
heap[outIdx++] = 0x80 | (u & 63);
}
}
// Null-terminate the pointer to the buffer.
heap[outIdx] = 0;
return outIdx - startIdx;
}
/**
* Copies the given Javascript String object 'str' to the emscripten HEAP at
* address 'outPtr', null-terminated and encoded in UTF8 form. The copy will
* require at most str.length*4+1 bytes of space in the HEAP.
* Use the function lengthBytesUTF8 to compute the exact number of bytes
* (excluding null terminator) that this function will write.
*
* @return {number} The number of bytes written, EXCLUDING the null terminator.
*/
function stringToUTF8(str, outPtr, maxBytesToWrite) {
assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}
/**
* Returns the number of bytes the given Javascript string takes if encoded as a
* UTF8 byte array, EXCLUDING the null terminator byte.
*
* @param {string} str - JavaScript string to operator on
* @return {number} Length, in bytes, of the UTF8 encoded string.
*/
function lengthBytesUTF8(str) {
var len = 0;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
// unit, not a Unicode code point of the character! So decode
// UTF16->UTF32->UTF8.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var c = str.charCodeAt(i); // possibly a lead surrogate
if (c <= 0x7F) {
len++;
} else if (c <= 0x7FF) {
len += 2;
} else if (c >= 0xD800 && c <= 0xDFFF) {
len += 4; ++i;
} else {
len += 3;
}
}
return len;
}
// end include: runtime_strings.js
// Memory management
var HEAP,
/** @type {!Int8Array} */
HEAP8,
/** @type {!Uint8Array} */
HEAPU8,
/** @type {!Int16Array} */
HEAP16,
/** @type {!Uint16Array} */
HEAPU16,
/** @type {!Int32Array} */
HEAP32,
/** @type {!Uint32Array} */
HEAPU32,
/** @type {!Float32Array} */
HEAPF32,
/** @type {!Float64Array} */
HEAPF64;
function updateMemoryViews() {
var b = wasmMemory.buffer;
Module['HEAP8'] = HEAP8 = new Int8Array(b);
Module['HEAP16'] = HEAP16 = new Int16Array(b);
Module['HEAP32'] = HEAP32 = new Int32Array(b);
Module['HEAPU8'] = HEAPU8 = new Uint8Array(b);
Module['HEAPU16'] = HEAPU16 = new Uint16Array(b);
Module['HEAPU32'] = HEAPU32 = new Uint32Array(b);
Module['HEAPF32'] = HEAPF32 = new Float32Array(b);
Module['HEAPF64'] = HEAPF64 = new Float64Array(b);
}
var STACK_SIZE = 65536;
if (Module['STACK_SIZE']) assert(STACK_SIZE === Module['STACK_SIZE'], 'the stack size can no longer be determined at runtime')
var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY');
assert(INITIAL_MEMORY >= STACK_SIZE, 'INITIAL_MEMORY should be larger than STACK_SIZE, was ' + INITIAL_MEMORY + '! (STACK_SIZE=' + STACK_SIZE + ')');
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,
'JS engine does not provide full typed array support');
// If memory is defined in wasm, the user can't provide it.
assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -sIMPORTED_MEMORY to define wasmMemory externally');
assert(INITIAL_MEMORY == 16777216, 'Detected runtime INITIAL_MEMORY setting. Use -sIMPORTED_MEMORY to define wasmMemory dynamically');
// include: runtime_init_table.js
// In regular non-RELOCATABLE mode the table is exported
// from the wasm module and this will be assigned once
// the exports are available.
var wasmTable;
// end include: runtime_init_table.js
// include: runtime_stack_check.js
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
var max = _emscripten_stack_get_end();
assert((max & 3) == 0);
// If the stack ends at address zero we write our cookies 4 bytes into the
// stack. This prevents interference with the (separate) address-zero check
// below.
if (max == 0) {
max += 4;
}
// The stack grow downwards towards _emscripten_stack_get_end.
// We write cookies to the final two words in the stack and detect if they are
// ever overwritten.
HEAPU32[((max)>>2)] = 0x2135467;
HEAPU32[(((max)+(4))>>2)] = 0x89BACDFE;
// Also test the global address 0 for integrity.
HEAPU32[0] = 0x63736d65; /* 'emsc' */
}
function checkStackCookie() {
if (ABORT) return;
var max = _emscripten_stack_get_end();
// See writeStackCookie().
if (max == 0) {
max += 4;
}
var cookie1 = HEAPU32[((max)>>2)];
var cookie2 = HEAPU32[(((max)+(4))>>2)];
if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) {
abort('Stack overflow! Stack cookie has been overwritten at ' + ptrToString(max) + ', expected hex dwords 0x89BACDFE and 0x2135467, but received ' + ptrToString(cookie2) + ' ' + ptrToString(cookie1));
}
// Also test the global address 0 for integrity.
if (HEAPU32[0] !== 0x63736d65 /* 'emsc' */) {
abort('Runtime error: The application has corrupted its heap memory area (address zero)!');
}
}
// end include: runtime_stack_check.js
// include: runtime_assertions.js
// Endianness check
(function() {
var h16 = new Int16Array(1);
var h8 = new Int8Array(h16.buffer);
h16[0] = 0x6373;
if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)';
})();
// end include: runtime_assertions.js
var __ATPRERUN__ = []; // functions called before the runtime is initialized
var __ATINIT__ = []; // functions called during startup
var __ATEXIT__ = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the main() is called
var runtimeInitialized = false;
function keepRuntimeAlive() {
return noExitRuntime;
}
function preRun() {
if (Module['preRun']) {
if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
while (Module['preRun'].length) {
addOnPreRun(Module['preRun'].shift());
}
}
callRuntimeCallbacks(__ATPRERUN__);
}
function initRuntime() {
assert(!runtimeInitialized);
runtimeInitialized = true;
checkStackCookie();
SOCKFS.root = FS.mount(SOCKFS, {}, null);
if (!Module["noFSInit"] && !FS.init.initialized)
FS.init();
FS.ignorePermissions = false;
TTY.init();
callRuntimeCallbacks(__ATINIT__);
}
function postRun() {
checkStackCookie();
if (Module['postRun']) {
if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
while (Module['postRun'].length) {
addOnPostRun(Module['postRun'].shift());
}
}
callRuntimeCallbacks(__ATPOSTRUN__);
}
function addOnPreRun(cb) {
__ATPRERUN__.unshift(cb);
}
function addOnInit(cb) {
__ATINIT__.unshift(cb);
}
function addOnExit(cb) {
}
function addOnPostRun(cb) {
__ATPOSTRUN__.unshift(cb);
}
// include: runtime_math.js
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
// end include: runtime_math.js
// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};
function getUniqueRunDependency(id) {
var orig = id;
while (1) {
if (!runDependencyTracking[id]) return id;
id = orig + Math.random();
}
}
function addRunDependency(id) {
runDependencies++;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
if (id) {
assert(!runDependencyTracking[id]);
runDependencyTracking[id] = 1;
if (runDependencyWatcher === null && typeof setInterval != 'undefined') {
// Check for missing dependencies every few seconds
runDependencyWatcher = setInterval(function() {
if (ABORT) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
return;
}
var shown = false;
for (var dep in runDependencyTracking) {
if (!shown) {
shown = true;
err('still waiting on run dependencies:');
}
err('dependency: ' + dep);
}
if (shown) {
err('(end of list)');
}
}, 10000);
}
} else {
err('warning: run dependency added without ID');
}
}
function removeRunDependency(id) {
runDependencies--;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
if (id) {
assert(runDependencyTracking[id]);
delete runDependencyTracking[id];
} else {
err('warning: run dependency removed without ID');
}
if (runDependencies == 0) {
if (runDependencyWatcher !== null) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
}
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback(); // can add another dependenciesFulfilled
}
}
}
/** @param {string|number=} what */
function abort(what) {
if (Module['onAbort']) {
Module['onAbort'](what);
}
what = 'Aborted(' + what + ')';
// TODO(sbc): Should we remove printing and leave it up to whoever
// catches the exception?
err(what);
ABORT = true;
EXITSTATUS = 1;
// Use a wasm runtime error, because a JS error might be seen as a foreign
// exception, which means we'd run destructors on it. We need the error to
// simply make the program stop.
// FIXME This approach does not work in Wasm EH because it currently does not assume
// all RuntimeErrors are from traps; it decides whether a RuntimeError is from
// a trap or not based on a hidden field within the object. So at the moment
// we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
// allows this in the wasm spec.
// Suppress closure compiler warning here. Closure compiler's builtin extern
// defintion for WebAssembly.RuntimeError claims it takes no arguments even
// though it can.
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
/** @suppress {checkTypes} */
var e = new WebAssembly.RuntimeError(what);
readyPromiseReject(e);
// Throw the error whether or not MODULARIZE is set because abort is used
// in code paths apart from instantiation where an exception is expected
// to be thrown when abort is called.
throw e;
}
// {{MEM_INITIALIZER}}
// include: memoryprofiler.js
// end include: memoryprofiler.js
// include: URIUtils.js
// Prefix of data URIs emitted by SINGLE_FILE and related options.
var dataURIPrefix = 'data:application/octet-stream;base64,';
// Indicates whether filename is a base64 data URI.
function isDataURI(filename) {
// Prefix of data URIs emitted by SINGLE_FILE and related options.
return filename.startsWith(dataURIPrefix);
}
// Indicates whether filename is delivered via file protocol (as opposed to http/https)
function isFileURI(filename) {
return filename.startsWith('file://');
}
// end include: URIUtils.js
/** @param {boolean=} fixedasm */
function createExportWrapper(name, fixedasm) {
return function() {
var displayName = name;
var asm = fixedasm;
if (!fixedasm) {
asm = Module['asm'];
}
assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization');
if (!asm[name]) {
assert(asm[name], 'exported native function `' + displayName + '` not found');
}
return asm[name].apply(null, arguments);
};
}
var wasmBinaryFile;
if (Module['locateFile']) {
wasmBinaryFile = 'rhino3dm.wasm';
if (!isDataURI(wasmBinaryFile)) {
wasmBinaryFile = locateFile(wasmBinaryFile);
}
} else {
// Use bundler-friendly `new URL(..., import.meta.url)` pattern; works in browsers too.
wasmBinaryFile = new URL('rhino3dm.wasm', import.meta.url).href;
}
function getBinary(file) {
try {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary);
}
if (readBinary) {
return readBinary(file);
}
throw "both async and sync fetching of the wasm failed";
}
catch (err) {
abort(err);
}
}
function getBinaryPromise() {
// If we don't have the binary yet, try to to load it asynchronously.
// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
// See https://github.com/github/fetch/pull/92#issuecomment-140665932
// Cordova or Electron apps are typically loaded from a file:// url.
// So use fetch if it is available and the url is not a file, otherwise fall back to XHR.
if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
if (typeof fetch == 'function'
&& !isFileURI(wasmBinaryFile)
) {
return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
if (!response['ok']) {
throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";
}
return response['arrayBuffer']();
}).catch(function () {
return getBinary(wasmBinaryFile);
});
}
else {
if (readAsync) {
// fetch is not available or url is file => try XHR (readAsync uses XHR internally)
return new Promise(function(resolve, reject) {
readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject)
});
}
}
}
// Otherwise, getBinary should be able to get it synchronously
return Promise.resolve().then(function() { return getBinary(wasmBinaryFile); });
}
// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
// prepare imports
var info = {
'env': asmLibraryArg,
'wasi_snapshot_preview1': asmLibraryArg,
};
// Load the wasm module and create an instance of using native support in the JS engine.
// handle a generated wasm instance, receiving its exports and
// performing other necessary setup
/** @param {WebAssembly.Module=} module*/
function receiveInstance(instance, module) {
var exports = instance.exports;
Module['asm'] = exports;
wasmMemory = Module['asm']['memory'];
assert(wasmMemory, "memory not found in wasm exports");
// This assertion doesn't hold when emscripten is run in --post-link
// mode.
// TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode.
//assert(wasmMemory.buffer.byteLength === 16777216);
updateMemoryViews();
wasmTable = Module['asm']['__indirect_function_table'];
assert(wasmTable, "table not found in wasm exports");
addOnInit(Module['asm']['__wasm_call_ctors']);
removeRunDependency('wasm-instantiate');
}
// wait for the pthread pool (if any)
addRunDependency('wasm-instantiate');
// Prefer streaming instantiation if available.
// Async compilation can be confusing when an error on the page overwrites Module
// (for example, if the order of elements is wrong, and the one defining Module is
// later), so we save Module and check it later.
var trueModule = Module;
function receiveInstantiationResult(result) {
// 'result' is a ResultObject object which has both the module and instance.
// receiveInstance() will swap in the exports (to Module.asm) so they can be called
assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?');
trueModule = null;
// TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
// When the regression is fixed, can restore the above USE_PTHREADS-enabled path.
receiveInstance(result['instance']);
}
function instantiateArrayBuffer(receiver) {
return getBinaryPromise().then(function(binary) {
return WebAssembly.instantiate(binary, info);
}).then(function (instance) {
return instance;
}).then(receiver, function(reason) {
err('failed to asynchronously prepare wasm: ' + reason);
// Warn on some common problems.
if (isFileURI(wasmBinaryFile)) {
err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing');
}
abort(reason);
});
}
function instantiateAsync() {
if (!wasmBinary &&
typeof WebAssembly.instantiateStreaming == 'function' &&
!isDataURI(wasmBinaryFile) &&
// Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
!isFileURI(wasmBinaryFile) &&
// Avoid instantiateStreaming() on Node.js environment for now, as while
// Node.js v18.1.0 implements it, it does not have a full fetch()
// implementation yet.
//
// Reference:
// https://github.com/emscripten-core/emscripten/pull/16917
!ENVIRONMENT_IS_NODE &&
typeof fetch == 'function') {
return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
// Suppress closure warning here since the upstream definition for
// instantiateStreaming only allows Promise<Repsponse> rather than
// an actual Response.
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed.
/** @suppress {checkTypes} */
var result = WebAssembly.instantiateStreaming(response, info);
return result.then(
receiveInstantiationResult,
function(reason) {
// We expect the most common failure cause to be a bad MIME type for the binary,
// in which case falling back to ArrayBuffer instantiation should work.
err('wasm streaming compile failed: ' + reason);
err('falling back to ArrayBuffer instantiation');
return instantiateArrayBuffer(receiveInstantiationResult);
});
});
} else {
return instantiateArrayBuffer(receiveInstantiationResult);
}
}
// User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
// to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel
// to any other async startup actions they are performing.
// Also pthreads and wasm workers initialize the wasm instance through this path.
if (Module['instantiateWasm']) {
try {
var exports = Module['instantiateWasm'](info, receiveInstance);
return exports;
} catch(e) {
err('Module.instantiateWasm callback failed with error: ' + e);
// If instantiation fails, reject the module ready promise.
readyPromiseReject(e);
}
}
// If instantiation fails, reject the module ready promise.
instantiateAsync().catch(readyPromiseReject);
return {}; // no exports yet; we'll fill them in later
}
// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;
// === Body ===
var ASM_CONSTS = {
};
/** @constructor */
function ExitStatus(status) {
this.name = 'ExitStatus';
this.message = 'Program terminated with exit(' + status + ')';
this.status = status;
}
function callRuntimeCallbacks(callbacks) {
while (callbacks.length > 0) {
// Pass the module as the first argument.
callbacks.shift()(Module);
}
}
/**
* @param {number} ptr
* @param {string} type
*/
function getValue(ptr, type = 'i8') {
if (type.endsWith('*')) type = '*';
switch (type) {
case 'i1': return HEAP8[((ptr)>>0)];
case 'i8': return HEAP8[((ptr)>>0)];
case 'i16': return HEAP16[((ptr)>>1)];
case 'i32': return HEAP32[((ptr)>>2)];
case 'i64': return HEAP32[((ptr)>>2)];
case 'float': return HEAPF32[((ptr)>>2)];
case 'double': return HEAPF64[((ptr)>>3)];
case '*': return HEAPU32[((ptr)>>2)];
default: abort('invalid type for getValue: ' + type);
}
return null;
}
function ptrToString(ptr) {
assert(typeof ptr === 'number');
return '0x' + ptr.toString(16).padStart(8, '0');
}
/**
* @param {number} ptr
* @param {number} value
* @param {string} type
*/
function setValue(ptr, value, type = 'i8') {
if (type.endsWith('*')) type = '*';
switch (type) {
case 'i1': HEAP8[((ptr)>>0)] = value; break;
case 'i8': HEAP8[((ptr)>>0)] = value; break;
case 'i16': HEAP16[((ptr)>>1)] = value; break;
case 'i32': HEAP32[((ptr)>>2)] = value; break;
case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)] = tempI64[0],HEAP32[(((ptr)+(4))>>2)] = tempI64[1]); break;
case 'float': HEAPF32[((ptr)>>2)] = value; break;
case 'double': HEAPF64[((ptr)>>3)] = value;