convex_hull/convex_hull.js

2615 lines
95 KiB
JavaScript
Raw Normal View History

2024-12-13 07:20:28 +00:00
// include: shell.js
// 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 Module != 'undefined' ? Module : {};
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// 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)');
}
// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -sPROXY_TO_WORKER) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)
// ENVIRONMENT_IS_PTHREAD=true will have been preset in worker.js. Make it false in the main runtime thread.
var ENVIRONMENT_IS_PTHREAD = Module['ENVIRONMENT_IS_PTHREAD'] || false;
// In MODULARIZE mode _scriptDir needs to be captured already at the very top of the page immediately when the page is parsed, so it is generated there
// before the page load. In non-MODULARIZE modes generate it here.
var _scriptDir = (typeof document != 'undefined' && document.currentScript) ? document.currentScript.src : undefined;
if (ENVIRONMENT_IS_WORKER) {
_scriptDir = self.location.href;
}
else if (ENVIRONMENT_IS_NODE) {
_scriptDir = __filename;
}
// `/` 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;
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?)');
var nodeVersion = process.versions.node;
var numericVersion = nodeVersion.split('.').slice(0, 3);
numericVersion = (numericVersion[0] * 10000) + (numericVersion[1] * 100) + (numericVersion[2].split('-')[0] * 1);
var minVersion = 160000;
if (numericVersion < 160000) {
throw new Error('This emscripten-generated code requires node v16.0.0 (detected v' + nodeVersion + ')');
}
// `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?
// 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 {
scriptDirectory = __dirname + '/';
}
// 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, binary = true) => {
// See the comment in the `read_` function.
filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
fs.readFile(filename, binary ? undefined : 'utf8', (err, data) => {
if (err) onerror(err);
else onload(binary ? data.buffer : data);
});
};
// end include: node_shell_read.js
if (!Module['thisProgram'] && process.argv.length > 1) {
thisProgram = process.argv[1].replace(/\\/g, '/');
}
arguments_ = process.argv.slice(2);
if (typeof module != 'undefined') {
module['exports'] = Module;
}
process.on('uncaughtException', (ex) => {
// suppress ExitStatus exceptions from showing an error
if (ex !== 'unwind' && !(ex instanceof ExitStatus) && !(ex.context instanceof ExitStatus)) {
throw ex;
}
});
quit_ = (status, toThrow) => {
process.exitCode = status;
throw toThrow;
};
global.Worker = require('worker_threads').Worker;
} 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_ = read;
}
readBinary = (f) => {
if (typeof readbuffer == 'function') {
return new Uint8Array(readbuffer(f));
}
let data = read(f, 'binary');
assert(typeof data == 'object');
return data;
};
readAsync = (f, onload, onerror) => {
setTimeout(() => onload(readBinary(f)));
};
if (typeof clearTimeout == 'undefined') {
globalThis.clearTimeout = (id) => {};
}
if (typeof setTimeout == 'undefined') {
// spidermonkey lacks setTimeout but we use it above in readAsync.
globalThis.setTimeout = (f) => (typeof f == 'function') ? f() : abort();
}
if (typeof scriptArgs != 'undefined') {
arguments_ = scriptArgs;
} else if (typeof arguments != 'undefined') {
arguments_ = arguments;
}
if (typeof quit == 'function') {
quit_ = (status, toThrow) => {
// Unlike node which has process.exitCode, d8 has no such mechanism. So we
// have no way to set the exit code and then let the program exit with
// that code when it naturally stops running (say, when all setTimeouts
// have completed). For that reason, we must call `quit` - the only way to
// set the exit code - but quit also halts immediately. To increase
// consistency with node (and the web) we schedule the actual quit call
// using a setTimeout to give the current stack and any exception handlers
// a chance to run. This enables features such as addOnPostRun (which
// expected to be able to run code after main returns).
setTimeout(() => {
if (!(toThrow instanceof ExitStatus)) {
let toLog = toThrow;
if (toThrow && typeof toThrow == 'object' && toThrow.stack) {
toLog = [toThrow, toThrow.stack];
}
err(`exiting due to exception: ${toLog}`);
}
quit(status);
});
throw toThrow;
};
}
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;
}
// 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.startsWith('blob:')) {
scriptDirectory = '';
} else {
scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, '').lastIndexOf('/')+1);
}
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.
if (!ENVIRONMENT_IS_NODE)
{
// 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
}
} else
{
throw new Error('environment detection error');
}
if (ENVIRONMENT_IS_NODE) {
// Polyfill the performance object, which emscripten pthreads support
// depends on for good timing.
if (typeof performance == 'undefined') {
global.performance = require('perf_hooks').performance;
}
}
// Set up the out() and err() hooks, which are how we can print to stdout or
// stderr, respectively.
// Normally just binding console.log/console.error here works fine, but
// under node (with workers) we see missing/out-of-order messages so route
// directly to stdout and stderr.
// See https://github.com/emscripten-core/emscripten/issues/14804
var defaultPrint = console.log.bind(console);
var defaultPrintErr = console.error.bind(console);
if (ENVIRONMENT_IS_NODE) {
defaultPrint = (...args) => fs.writeSync(1, args.join(' ') + '\n');
defaultPrintErr = (...args) => fs.writeSync(2, args.join(' ') + '\n');
}
var out = Module['print'] || defaultPrint;
var err = Module['printErr'] || defaultPrintErr;
// Merge back in the overrides
Object.assign(Module, moduleOverrides);
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used.
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 emscripten_set_window_title in JS)');
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
legacyModuleProp('asm', 'wasmExports');
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 FETCHFS = 'FETCHFS is no longer included by default; build with -lfetchfs.js';
var ICASEFS = 'ICASEFS is no longer included by default; build with -licasefs.js';
var JSFILEFS = 'JSFILEFS is no longer included by default; build with -ljsfilefs.js';
var OPFS = 'OPFS is no longer included by default; build with -lopfs.js';
var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';
assert(
ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER || ENVIRONMENT_IS_NODE, 'Pthreads do not work in this environment yet (need Web Workers, or an alternative to them)');
assert(!ENVIRONMENT_IS_SHELL, 'shell environment detected but not enabled at build time. Add `shell` to `-sENVIRONMENT` to enable.');
// end include: shell.js
// include: preamble.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');
if (typeof WebAssembly != 'object') {
err('no native wasm support detected');
}
// Wasm globals
var wasmMemory;
// For sending to workers.
var wasmModule;
//========================================
// 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;
// In STRICT mode, we only define assert() when ASSERTIONS is set. i.e. we
// don't define it at all in release modes. This matches the behaviour of
// MINIMAL_RUNTIME.
// TODO(sbc): Make this the default even without STRICT enabled.
/** @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.
// 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;
// include: runtime_shared.js
function updateMemoryViews() {
var b = wasmMemory.buffer;
Module['HEAP8'] = HEAP8 = new Int8Array(b);
Module['HEAP16'] = HEAP16 = new Int16Array(b);
Module['HEAPU8'] = HEAPU8 = new Uint8Array(b);
Module['HEAPU16'] = HEAPU16 = new Uint16Array(b);
Module['HEAP32'] = HEAP32 = new Int32Array(b);
Module['HEAPU32'] = HEAPU32 = new Uint32Array(b);
Module['HEAPF32'] = HEAPF32 = new Float32Array(b);
Module['HEAPF64'] = HEAPF64 = new Float64Array(b);
}
// end include: runtime_shared.js
assert(!Module['STACK_SIZE'], 'STACK_SIZE can no longer be set at runtime. Use -sSTACK_SIZE at link time')
assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,
'JS engine does not provide full typed array support');
// In non-standalone/normal mode, we create the memory here.
// include: runtime_init_memory.js
// Create the wasm memory. (Note: this only applies if IMPORTED_MEMORY is defined)
var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY');
assert(INITIAL_MEMORY >= 65536, 'INITIAL_MEMORY should be larger than STACK_SIZE, was ' + INITIAL_MEMORY + '! (STACK_SIZE=' + 65536 + ')');
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
if (ENVIRONMENT_IS_PTHREAD) {
wasmMemory = Module['wasmMemory'];
} else {
if (Module['wasmMemory']) {
wasmMemory = Module['wasmMemory'];
} else
{
wasmMemory = new WebAssembly.Memory({
'initial': INITIAL_MEMORY / 65536,
'maximum': INITIAL_MEMORY / 65536,
'shared': true,
});
if (!(wasmMemory.buffer instanceof SharedArrayBuffer)) {
err('requested a shared WebAssembly.Memory but the returned buffer is not a SharedArrayBuffer, indicating that while the browser has SharedArrayBuffer it does not have WebAssembly threads support - you may need to set a flag');
if (ENVIRONMENT_IS_NODE) {
err('(on node you may need: --experimental-wasm-threads --experimental-wasm-bulk-memory and/or recent version)');
}
throw Error('bad memory');
}
}
}
updateMemoryViews();
// If the user provides an incorrect length, just use that length instead rather than providing the user to
// specifically provide the memory length with Module['INITIAL_MEMORY'].
INITIAL_MEMORY = wasmMemory.buffer.byteLength;
assert(INITIAL_MEMORY % 65536 === 0);
// end include: runtime_init_memory.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 SAFE_HEAP and ASAN which also
// monitor writes to address zero.
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)] = 0x02135467;
HEAPU32[(((max)+(4))>>2)] = 0x89BACDFE;
// Also test the global address 0 for integrity.
HEAPU32[((0)>>2)] = 1668509029;
}
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 != 0x02135467 || 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)>>2)] != 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 preRun() {
assert(!ENVIRONMENT_IS_PTHREAD); // PThreads reuse the runtime from the main thread.
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;
if (ENVIRONMENT_IS_PTHREAD) return;
checkStackCookie();
callRuntimeCallbacks(__ATINIT__);
}
function postRun() {
checkStackCookie();
if (ENVIRONMENT_IS_PTHREAD) return; // PThreads reuse the runtime from the main thread.
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++;
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(() => {
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--;
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) {
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
// definition 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);
// 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;
}
// include: memoryprofiler.js
// end include: memoryprofiler.js
// show errors on likely calls to FS when it was not included
var FS = {
error() {
abort('Filesystem support (FS) was not included. The problem is that you are using files from JS, but files were not used from C/C++, so filesystem support was not auto-included. You can force-include filesystem support with -sFORCE_FILESYSTEM');
},
init() { FS.error() },
createDataFile() { FS.error() },
createPreloadedFile() { FS.error() },
createLazyFile() { FS.error() },
open() { FS.error() },
mkdev() { FS.error() },
registerDevice() { FS.error() },
analyzePath() { FS.error() },
ErrnoError() { FS.error() },
};
Module['FS_createDataFile'] = FS.createDataFile;
Module['FS_createPreloadedFile'] = FS.createPreloadedFile;
// 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.
* @noinline
*/
var isDataURI = (filename) => filename.startsWith(dataURIPrefix);
/**
* Indicates whether filename is delivered via file protocol (as opposed to http/https)
* @noinline
*/
var isFileURI = (filename) => filename.startsWith('file://');
// end include: URIUtils.js
function createExportWrapper(name) {
return (...args) => {
assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`);
var f = wasmExports[name];
assert(f, `exported native function \`${name}\` not found`);
return f(...args);
};
}
// include: runtime_exceptions.js
// end include: runtime_exceptions.js
var wasmBinaryFile;
wasmBinaryFile = 'convex_hull.wasm';
if (!isDataURI(wasmBinaryFile)) {
wasmBinaryFile = locateFile(wasmBinaryFile);
}
function getBinarySync(file) {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary);
}
if (readBinary) {
return readBinary(file);
}
throw 'both async and sync fetching of the wasm failed';
}
function getBinaryPromise(binaryFile) {
// If we don't have the binary yet, try to load it asynchronously.
// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
// See https://github.com/github/fetch/pull/92#issuecomment-140665932
// Cordova or Electron apps are typically loaded from a file:// url.
// So use fetch if it is available and the url is not a file, otherwise fall back to XHR.
if (!wasmBinary
&& (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
if (typeof fetch == 'function'
&& !isFileURI(binaryFile)
) {
return fetch(binaryFile, { credentials: 'same-origin' }).then((response) => {
if (!response['ok']) {
throw `failed to load wasm binary file at '${binaryFile}'`;
}
return response['arrayBuffer']();
}).catch(() => getBinarySync(binaryFile));
}
else if (readAsync) {
// fetch is not available or url is file => try XHR (readAsync uses XHR internally)
return new Promise((resolve, reject) => {
readAsync(binaryFile, (response) => resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))), reject)
});
}
}
// Otherwise, getBinarySync should be able to get it synchronously
return Promise.resolve().then(() => getBinarySync(binaryFile));
}
function instantiateArrayBuffer(binaryFile, imports, receiver) {
return getBinaryPromise(binaryFile).then((binary) => {
return WebAssembly.instantiate(binary, imports);
}).then(receiver, (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(binary, binaryFile, imports, callback) {
if (!binary &&
typeof WebAssembly.instantiateStreaming == 'function' &&
!isDataURI(binaryFile) &&
// Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
!isFileURI(binaryFile) &&
// 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(binaryFile, { credentials: 'same-origin' }).then((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, imports);
return result.then(
callback,
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(binaryFile, imports, callback);
});
});
}
return instantiateArrayBuffer(binaryFile, imports, callback);
}
// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
// prepare imports
var info = {
'env': wasmImports,
'wasi_snapshot_preview1': wasmImports,
};
// 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) {
wasmExports = instance.exports;
registerTLSInit(wasmExports['_emscripten_tls_init']);
wasmTable = wasmExports['__indirect_function_table'];
assert(wasmTable, 'table not found in wasm exports');
addOnInit(wasmExports['__wasm_call_ctors']);
// We now have the Wasm module loaded up, keep a reference to the compiled module so we can post it to the workers.
wasmModule = module;
removeRunDependency('wasm-instantiate');
return wasmExports;
}
// 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;
receiveInstance(result['instance'], result['module']);
}
// 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 {
return Module['instantiateWasm'](info, receiveInstance);
} catch(e) {
err(`Module.instantiateWasm callback failed with error: ${e}`);
return false;
}
}
instantiateAsync(wasmBinary, wasmBinaryFile, info, receiveInstantiationResult);
return {}; // no exports yet; we'll fill them in later
}
// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;
// include: runtime_debug.js
function legacyModuleProp(prop, newName, incoming=true) {
if (!Object.getOwnPropertyDescriptor(Module, prop)) {
Object.defineProperty(Module, prop, {
configurable: true,
get() {
let extra = incoming ? ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)' : '';
abort(`\`Module.${prop}\` has been replaced by \`${newName}\`` + extra);
}
});
}
}
function ignoredModuleProp(prop) {
if (Object.getOwnPropertyDescriptor(Module, prop)) {
abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`);
}
}
// forcing the filesystem exports a few things by default
function isExportedByForceFilesystem(name) {
return name === 'FS_createPath' ||
name === 'FS_createDataFile' ||
name === 'FS_createPreloadedFile' ||
name === 'FS_unlink' ||
name === 'addRunDependency' ||
// The old FS has some functionality that WasmFS lacks.
name === 'FS_createLazyFile' ||
name === 'FS_createDevice' ||
name === 'removeRunDependency';
}
function missingGlobal(sym, msg) {
if (typeof globalThis !== 'undefined') {
Object.defineProperty(globalThis, sym, {
configurable: true,
get() {
warnOnce(`\`${sym}\` is not longer defined by emscripten. ${msg}`);
return undefined;
}
});
}
}
missingGlobal('buffer', 'Please use HEAP8.buffer or wasmMemory.buffer');
missingGlobal('asm', 'Please use wasmExports instead');
function missingLibrarySymbol(sym) {
if (typeof globalThis !== 'undefined' && !Object.getOwnPropertyDescriptor(globalThis, sym)) {
Object.defineProperty(globalThis, sym, {
configurable: true,
get() {
// Can't `abort()` here because it would break code that does runtime
// checks. e.g. `if (typeof SDL === 'undefined')`.
var msg = `\`${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='${librarySymbol}')`;
if (isExportedByForceFilesystem(sym)) {
msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
}
warnOnce(msg);
return undefined;
}
});
}
// Any symbol that is not included from the JS library is also (by definition)
// not exported on the Module object.
unexportedRuntimeSymbol(sym);
}
function unexportedRuntimeSymbol(sym) {
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
Object.defineProperty(Module, sym, {
configurable: true,
get() {
var msg = `'${sym}' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the Emscripten FAQ)`;
if (isExportedByForceFilesystem(sym)) {
msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you';
}
abort(msg);
}
});
}
}
// Used by XXXXX_DEBUG settings to output debug messages.
function dbg(...args) {
// Avoid using the console for debugging in multi-threaded node applications
// See https://github.com/emscripten-core/emscripten/issues/14804
if (ENVIRONMENT_IS_NODE) {
fs.writeSync(2, args.join(' ') + '\n');
} else
// TODO(sbc): Make this configurable somehow. Its not always convenient for
// logging to show up as warnings.
console.warn(...args);
}
// end include: runtime_debug.js
// === Body ===
// end include: preamble.js
/** @constructor */
function ExitStatus(status) {
this.name = 'ExitStatus';
this.message = `Program terminated with exit(${status})`;
this.status = status;
}
var terminateWorker = (worker) => {
worker.terminate();
// terminate() can be asynchronous, so in theory the worker can continue
// to run for some amount of time after termination. However from our POV
// the worker now dead and we don't want to hear from it again, so we stub
// out its message handler here. This avoids having to check in each of
// the onmessage handlers if the message was coming from valid worker.
worker.onmessage = (e) => {
var cmd = e['data']['cmd'];
err(`received "${cmd}" command from terminated worker: ${worker.workerID}`);
};
};
var killThread = (pthread_ptr) => {
assert(!ENVIRONMENT_IS_PTHREAD, 'Internal Error! killThread() can only ever be called from main application thread!');
assert(pthread_ptr, 'Internal Error! Null pthread_ptr in killThread!');
var worker = PThread.pthreads[pthread_ptr];
delete PThread.pthreads[pthread_ptr];
terminateWorker(worker);
__emscripten_thread_free_data(pthread_ptr);
// The worker was completely nuked (not just the pthread execution it was hosting), so remove it from running workers
// but don't put it back to the pool.
PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(worker), 1); // Not a running Worker anymore.
worker.pthread_ptr = 0;
};
var cancelThread = (pthread_ptr) => {
assert(!ENVIRONMENT_IS_PTHREAD, 'Internal Error! cancelThread() can only ever be called from main application thread!');
assert(pthread_ptr, 'Internal Error! Null pthread_ptr in cancelThread!');
var worker = PThread.pthreads[pthread_ptr];
worker.postMessage({ 'cmd': 'cancel' });
};
var cleanupThread = (pthread_ptr) => {
assert(!ENVIRONMENT_IS_PTHREAD, 'Internal Error! cleanupThread() can only ever be called from main application thread!');
assert(pthread_ptr, 'Internal Error! Null pthread_ptr in cleanupThread!');
var worker = PThread.pthreads[pthread_ptr];
assert(worker);
PThread.returnWorkerToPool(worker);
};
var zeroMemory = (address, size) => {
HEAPU8.fill(0, address, address + size);
return address;
};
var spawnThread = (threadParams) => {
assert(!ENVIRONMENT_IS_PTHREAD, 'Internal Error! spawnThread() can only ever be called from main application thread!');
assert(threadParams.pthread_ptr, 'Internal error, no pthread ptr!');
var worker = PThread.getNewWorker();
if (!worker) {
// No available workers in the PThread pool.
return 6;
}
assert(!worker.pthread_ptr, 'Internal error!');
PThread.runningWorkers.push(worker);
// Add to pthreads map
PThread.pthreads[threadParams.pthread_ptr] = worker;
worker.pthread_ptr = threadParams.pthread_ptr;
var msg = {
'cmd': 'run',
'start_routine': threadParams.startRoutine,
'arg': threadParams.arg,
'pthread_ptr': threadParams.pthread_ptr,
};
if (ENVIRONMENT_IS_NODE) {
// Mark worker as weakly referenced once we start executing a pthread,
// so that its existence does not prevent Node.js from exiting. This
// has no effect if the worker is already weakly referenced (e.g. if
// this worker was previously idle/unused).
worker.unref();
}
// Ask the worker to start executing its pthread entry point function.
worker.postMessage(msg, threadParams.transferList);
return 0;
};
var runtimeKeepaliveCounter = 0;
var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;
var withStackSave = (f) => {
var stack = stackSave();
var ret = f();
stackRestore(stack);
return ret;
};
var convertI32PairToI53Checked = (lo, hi) => {
assert(lo == (lo >>> 0) || lo == (lo|0)); // lo should either be a i32 or a u32
assert(hi === (hi|0)); // hi should be a i32
return ((hi + 0x200000) >>> 0 < 0x400001 - !!lo) ? (lo >>> 0) + hi * 4294967296 : NaN;
};
/** @type{function(number, (number|boolean), ...number)} */
var proxyToMainThread = (funcIndex, emAsmAddr, sync, ...callArgs) => {
// EM_ASM proxying is done by passing a pointer to the address of the EM_ASM
// content as `emAsmAddr`. JS library proxying is done by passing an index
// into `proxiedJSCallArgs` as `funcIndex`. If `emAsmAddr` is non-zero then
// `funcIndex` will be ignored.
// Additional arguments are passed after the first three are the actual
// function arguments.
// The serialization buffer contains the number of call params, and then
// all the args here.
// We also pass 'sync' to C separately, since C needs to look at it.
// Allocate a buffer, which will be copied by the C code.
return withStackSave(() => {
// First passed parameter specifies the number of arguments to the function.
// When BigInt support is enabled, we must handle types in a more complex
// way, detecting at runtime if a value is a BigInt or not (as we have no
// type info here). To do that, add a "prefix" before each value that
// indicates if it is a BigInt, which effectively doubles the number of
// values we serialize for proxying. TODO: pack this?
var serializedNumCallArgs = callArgs.length ;
var args = stackAlloc(serializedNumCallArgs * 8);
var b = ((args)>>3);
for (var i = 0; i < callArgs.length; i++) {
var arg = callArgs[i];
HEAPF64[b + i] = arg;
}
return __emscripten_run_on_main_thread_js(funcIndex, emAsmAddr, serializedNumCallArgs, args, sync);
});
};
function _proc_exit(code) {
if (ENVIRONMENT_IS_PTHREAD)
return proxyToMainThread(0, 0, 1, code);
EXITSTATUS = code;
if (!keepRuntimeAlive()) {
PThread.terminateAllThreads();
Module['onExit']?.(code);
ABORT = true;
}
quit_(code, new ExitStatus(code));
}
/** @suppress {duplicate } */
/** @param {boolean|number=} implicit */
var exitJS = (status, implicit) => {
EXITSTATUS = status;
checkUnflushedContent();
if (ENVIRONMENT_IS_PTHREAD) {
// implicit exit can never happen on a pthread
assert(!implicit);
// When running in a pthread we propagate the exit back to the main thread
// where it can decide if the whole process should be shut down or not.
// The pthread may have decided not to exit its own runtime, for example
// because it runs a main loop, but that doesn't affect the main thread.
exitOnMainThread(status);
throw 'unwind';
}
// if exit() was called explicitly, warn the user if the runtime isn't actually being shut down
if (keepRuntimeAlive() && !implicit) {
var msg = `program exited (with status: ${status}), but keepRuntimeAlive() is set (counter=${runtimeKeepaliveCounter}) due to an async operation, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)`;
err(msg);
}
_proc_exit(status);
};
var _exit = exitJS;
var ptrToString = (ptr) => {
assert(typeof ptr === 'number');
// With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
ptr >>>= 0;
return '0x' + ptr.toString(16).padStart(8, '0');
};
var handleException = (e) => {
// Certain exception types we do not treat as errors since they are used for
// internal control flow.
// 1. ExitStatus, which is thrown by exit()
// 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
// that wish to return to JS event loop.
if (e instanceof ExitStatus || e == 'unwind') {
return EXITSTATUS;
}
checkStackCookie();
if (e instanceof WebAssembly.RuntimeError) {
if (_emscripten_stack_get_current() <= 0) {
err('Stack overflow detected. You can try increasing -sSTACK_SIZE (currently set to 65536)');
}
}
quit_(1, e);
};
var PThread = {
unusedWorkers:[],
runningWorkers:[],
tlsInitFunctions:[],
pthreads:{
},
nextWorkerID:1,
debugInit() {
function pthreadLogPrefix() {
var t = 0;
if (runtimeInitialized && typeof _pthread_self != 'undefined'
) {
t = _pthread_self();
}
return 'w:' + (Module['workerID'] || 0) + ',t:' + ptrToString(t) + ': ';
}
// Prefix all err()/dbg() messages with the calling thread ID.
var origDbg = dbg;
dbg = (...args) => origDbg(pthreadLogPrefix() + args.join(' '));
},
init() {
PThread.debugInit();
if (ENVIRONMENT_IS_PTHREAD
) {
PThread.initWorker();
} else {
PThread.initMainThread();
}
},
initMainThread() {
// MINIMAL_RUNTIME takes care of calling loadWasmModuleToAllWorkers
// in postamble_minimal.js
addOnPreRun(() => {
addRunDependency('loading-workers')
PThread.loadWasmModuleToAllWorkers(() => removeRunDependency('loading-workers'));
});
},
initWorker() {
// worker.js is not compiled together with us, and must access certain
// things.
PThread['receiveObjectTransfer'] = PThread.receiveObjectTransfer;
PThread['threadInitTLS'] = PThread.threadInitTLS;
PThread['setExitStatus'] = PThread.setExitStatus;
// The default behaviour for pthreads is always to exit once they return
// from their entry point (or call pthread_exit). If we set noExitRuntime
// to true here on pthreads they would never complete and attempt to
// pthread_join to them would block forever.
// pthreads can still choose to set `noExitRuntime` explicitly, or
// call emscripten_unwind_to_js_event_loop to extend their lifetime beyond
// their main function. See comment in src/worker.js for more.
noExitRuntime = false;
},
setExitStatus:(status) => EXITSTATUS = status,
terminateAllThreads__deps:["$terminateWorker"],
terminateAllThreads:() => {
assert(!ENVIRONMENT_IS_PTHREAD, 'Internal Error! terminateAllThreads() can only ever be called from main application thread!');
// Attempt to kill all workers. Sadly (at least on the web) there is no
// way to terminate a worker synchronously, or to be notified when a
// worker in actually terminated. This means there is some risk that
// pthreads will continue to be executing after `worker.terminate` has
// returned. For this reason, we don't call `returnWorkerToPool` here or
// free the underlying pthread data structures.
for (var worker of PThread.runningWorkers) {
terminateWorker(worker);
}
for (var worker of PThread.unusedWorkers) {
terminateWorker(worker);
}
PThread.unusedWorkers = [];
PThread.runningWorkers = [];
PThread.pthreads = [];
},
returnWorkerToPool:(worker) => {
// We don't want to run main thread queued calls here, since we are doing
// some operations that leave the worker queue in an invalid state until
// we are completely done (it would be bad if free() ends up calling a
// queued pthread_create which looks at the global data structures we are
// modifying). To achieve that, defer the free() til the very end, when
// we are all done.
var pthread_ptr = worker.pthread_ptr;
delete PThread.pthreads[pthread_ptr];
// Note: worker is intentionally not terminated so the pool can
// dynamically grow.
PThread.unusedWorkers.push(worker);
PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(worker), 1);
// Not a running Worker anymore
// Detach the worker from the pthread object, and return it to the
// worker pool as an unused worker.
worker.pthread_ptr = 0;
// Finally, free the underlying (and now-unused) pthread structure in
// linear memory.
__emscripten_thread_free_data(pthread_ptr);
},
receiveObjectTransfer(data) {
},
threadInitTLS() {
// Call thread init functions (these are the _emscripten_tls_init for each
// module loaded.
PThread.tlsInitFunctions.forEach((f) => f());
},
loadWasmModuleToWorker:(worker) => new Promise((onFinishedLoading) => {
worker.onmessage = (e) => {
var d = e['data'];
var cmd = d['cmd'];
// If this message is intended to a recipient that is not the main
// thread, forward it to the target thread.
if (d['targetThread'] && d['targetThread'] != _pthread_self()) {
var targetWorker = PThread.pthreads[d['targetThread']];
if (targetWorker) {
targetWorker.postMessage(d, d['transferList']);
} else {
err(`Internal error! Worker sent a message "${cmd}" to target pthread ${d['targetThread']}, but that thread no longer exists!`);
}
return;
}
if (cmd === 'checkMailbox') {
checkMailbox();
} else if (cmd === 'spawnThread') {
spawnThread(d);
} else if (cmd === 'cleanupThread') {
cleanupThread(d['thread']);
} else if (cmd === 'killThread') {
killThread(d['thread']);
} else if (cmd === 'cancelThread') {
cancelThread(d['thread']);
} else if (cmd === 'loaded') {
worker.loaded = true;
onFinishedLoading(worker);
} else if (cmd === 'alert') {
alert(`Thread ${d['threadId']}: ${d['text']}`);
} else if (d.target === 'setimmediate') {
// Worker wants to postMessage() to itself to implement setImmediate()
// emulation.
worker.postMessage(d);
} else if (cmd === 'callHandler') {
Module[d['handler']](...d['args']);
} else if (cmd) {
// The received message looks like something that should be handled by this message
// handler, (since there is a e.data.cmd field present), but is not one of the
// recognized commands:
err(`worker sent an unknown command ${cmd}`);
}
};
worker.onerror = (e) => {
var message = 'worker sent an error!';
if (worker.pthread_ptr) {
message = `Pthread ${ptrToString(worker.pthread_ptr)} sent an error!`;
}
err(`${message} ${e.filename}:${e.lineno}: ${e.message}`);
throw e;
};
if (ENVIRONMENT_IS_NODE) {
worker.on('message', (data) => worker.onmessage({ data: data }));
worker.on('error', (e) => worker.onerror(e));
}
assert(wasmMemory instanceof WebAssembly.Memory, 'WebAssembly memory should have been loaded by now!');
assert(wasmModule instanceof WebAssembly.Module, 'WebAssembly Module should have been loaded by now!');
// When running on a pthread, none of the incoming parameters on the module
// object are present. Proxy known handlers back to the main thread if specified.
var handlers = [];
var knownHandlers = [
'onExit',
'onAbort',
'print',
'printErr',
];
for (var handler of knownHandlers) {
if (Module.hasOwnProperty(handler)) {
handlers.push(handler);
}
}
worker.workerID = PThread.nextWorkerID++;
// Ask the new worker to load up the Emscripten-compiled page. This is a heavy operation.
worker.postMessage({
'cmd': 'load',
'handlers': handlers,
// If the application main .js file was loaded from a Blob, then it is not possible
// to access the URL of the current script that could be passed to a Web Worker so that
// it could load up the same file. In that case, developer must either deliver the Blob
// object in Module['mainScriptUrlOrBlob'], or a URL to it, so that pthread Workers can
// independently load up the same main application file.
'urlOrBlob': Module['mainScriptUrlOrBlob']
|| _scriptDir
,
'wasmMemory': wasmMemory,
'wasmModule': wasmModule,
'workerID': worker.workerID,
});
}),
loadWasmModuleToAllWorkers(onMaybeReady) {
onMaybeReady();
},
allocateUnusedWorker() {
var worker;
// Allow HTML module to configure the location where the 'worker.js' file will be loaded from,
// via Module.locateFile() function. If not specified, then the default URL 'worker.js' relative
// to the main html file is loaded.
var pthreadMainJs = locateFile('convex_hull.worker.js');
worker = new Worker(pthreadMainJs);
PThread.unusedWorkers.push(worker);
},
getNewWorker() {
if (PThread.unusedWorkers.length == 0) {
// PTHREAD_POOL_SIZE_STRICT should show a warning and, if set to level `2`, return from the function.
// However, if we're in Node.js, then we can create new workers on the fly and PTHREAD_POOL_SIZE_STRICT
// should be ignored altogether.
if (!ENVIRONMENT_IS_NODE) {
err('Tried to spawn a new thread, but the thread pool is exhausted.\n' +
'This might result in a deadlock unless some threads eventually exit or the code explicitly breaks out to the event loop.\n' +
'If you want to increase the pool size, use setting `-sPTHREAD_POOL_SIZE=...`.'
+ '\nIf you want to throw an explicit error instead of the risk of deadlocking in those cases, use setting `-sPTHREAD_POOL_SIZE_STRICT=2`.'
);
}
PThread.allocateUnusedWorker();
PThread.loadWasmModuleToWorker(PThread.unusedWorkers[0]);
}
return PThread.unusedWorkers.pop();
},
};
Module['PThread'] = PThread;
var callRuntimeCallbacks = (callbacks) => {
while (callbacks.length > 0) {
// Pass the module as the first argument.
callbacks.shift()(Module);
}
};
var establishStackSpace = () => {
var pthread_ptr = _pthread_self();
var stackHigh = HEAPU32[(((pthread_ptr)+(52))>>2)];
var stackSize = HEAPU32[(((pthread_ptr)+(56))>>2)];
var stackLow = stackHigh - stackSize;
assert(stackHigh != 0);
assert(stackLow != 0);
assert(stackHigh > stackLow, 'stackHigh must be higher then stackLow');
// Set stack limits used by `emscripten/stack.h` function. These limits are
// cached in wasm-side globals to make checks as fast as possible.
_emscripten_stack_set_limits(stackHigh, stackLow);
// Call inside wasm module to set up the stack frame for this pthread in wasm module scope
stackRestore(stackHigh);
// Write the stack cookie last, after we have set up the proper bounds and
// current position of the stack.
writeStackCookie();
};
Module['establishStackSpace'] = establishStackSpace;
function exitOnMainThread(returnCode) {
if (ENVIRONMENT_IS_PTHREAD)
return proxyToMainThread(1, 0, 0, returnCode);
_exit(returnCode);
}
/**
* @param {number} ptr
* @param {string} type
*/
function getValue(ptr, type = 'i8') {
if (type.endsWith('*')) type = '*';
switch (type) {
case 'i1': return HEAP8[ptr];
case 'i8': return HEAP8[ptr];
case 'i16': return HEAP16[((ptr)>>1)];
case 'i32': return HEAP32[((ptr)>>2)];
case 'i64': abort('to do getValue(i64) use WASM_BIGINT');
case 'float': return HEAPF32[((ptr)>>2)];
case 'double': return HEAPF64[((ptr)>>3)];
case '*': return HEAPU32[((ptr)>>2)];
default: abort(`invalid type for getValue: ${type}`);
}
}
Module['getValue'] = getValue;
var wasmTableMirror = [];
var wasmTable;
var getWasmTableEntry = (funcPtr) => {
var func = wasmTableMirror[funcPtr];
if (!func) {
if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
}
assert(wasmTable.get(funcPtr) == func, 'JavaScript-side Wasm function table mirror is out of date!');
return func;
};
var invokeEntryPoint = (ptr, arg) => {
// pthread entry points are always of signature 'void *ThreadMain(void *arg)'
// Native codebases sometimes spawn threads with other thread entry point
// signatures, such as void ThreadMain(void *arg), void *ThreadMain(), or
// void ThreadMain(). That is not acceptable per C/C++ specification, but
// x86 compiler ABI extensions enable that to work. If you find the
// following line to crash, either change the signature to "proper" void
// *ThreadMain(void *arg) form, or try linking with the Emscripten linker
// flag -sEMULATE_FUNCTION_POINTER_CASTS to add in emulation for this x86
// ABI extension.
var result = getWasmTableEntry(ptr)(arg);
checkStackCookie();
function finish(result) {
if (keepRuntimeAlive()) {
PThread.setExitStatus(result);
} else {
__emscripten_thread_exit(result);
}
}
finish(result);
};
Module['invokeEntryPoint'] = invokeEntryPoint;
var noExitRuntime = Module['noExitRuntime'] || true;
var registerTLSInit = (tlsInitFunc) => PThread.tlsInitFunctions.push(tlsInitFunc);
/**
* @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] = value; break;
case 'i8': HEAP8[ptr] = value; break;
case 'i16': HEAP16[((ptr)>>1)] = value; break;
case 'i32': HEAP32[((ptr)>>2)] = value; break;
case 'i64': abort('to do setValue(i64) use WASM_BIGINT');
case 'float': HEAPF32[((ptr)>>2)] = value; break;
case 'double': HEAPF64[((ptr)>>3)] = value; break;
case '*': HEAPU32[((ptr)>>2)] = value; break;
default: abort(`invalid type for setValue: ${type}`);
}
}
Module['setValue'] = setValue;
var warnOnce = (text) => {
warnOnce.shown ||= {};
if (!warnOnce.shown[text]) {
warnOnce.shown[text] = 1;
if (ENVIRONMENT_IS_NODE) text = 'warning: ' + text;
err(text);
}
};
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}
*/
var 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.buffer instanceof SharedArrayBuffer ? heapOrArray.slice(idx, endPtr) : 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}
*/
var UTF8ToString = (ptr, maxBytesToRead) => {
assert(typeof ptr == 'number', `UTF8ToString expects a number (got ${typeof ptr})`);
return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
};
var ___assert_fail = (condition, filename, line, func) => {
abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']);
};
var ___emscripten_init_main_thread_js = (tb) => {
// Pass the thread address to the native code where they stored in wasm
// globals which act as a form of TLS. Global constructors trying
// to access this value will read the wrong value, but that is UB anyway.
__emscripten_thread_init(
tb,
/*is_main=*/!ENVIRONMENT_IS_WORKER,
/*is_runtime=*/1,
/*can_block=*/!ENVIRONMENT_IS_WEB,
/*default_stacksize=*/65536,
/*start_profiling=*/false,
);
PThread.threadInitTLS();
};
var ___emscripten_thread_cleanup = (thread) => {
// Called when a thread needs to be cleaned up so it can be reused.
// A thread is considered reusable when it either returns from its
// entry point, calls pthread_exit, or acts upon a cancellation.
// Detached threads are responsible for calling this themselves,
// otherwise pthread_join is responsible for calling this.
if (!ENVIRONMENT_IS_PTHREAD) cleanupThread(thread);
else postMessage({ 'cmd': 'cleanupThread', 'thread': thread });
};
var nowIsMonotonic = 1;
var __emscripten_get_now_is_monotonic = () => nowIsMonotonic;
var maybeExit = () => {
if (!keepRuntimeAlive()) {
try {
if (ENVIRONMENT_IS_PTHREAD) __emscripten_thread_exit(EXITSTATUS);
else
_exit(EXITSTATUS);
} catch (e) {
handleException(e);
}
}
};
var callUserCallback = (func) => {
if (ABORT) {
err('user callback triggered after runtime exited or application aborted. Ignoring.');
return;
}
try {
func();
maybeExit();
} catch (e) {
handleException(e);
}
};
var __emscripten_thread_mailbox_await = (pthread_ptr) => {
if (typeof Atomics.waitAsync === 'function') {
// Wait on the pthread's initial self-pointer field because it is easy and
// safe to access from sending threads that need to notify the waiting
// thread.
// TODO: How to make this work with wasm64?
var wait = Atomics.waitAsync(HEAP32, ((pthread_ptr)>>2), pthread_ptr);
assert(wait.async);
wait.value.then(checkMailbox);
var waitingAsync = pthread_ptr + 128;
Atomics.store(HEAP32, ((waitingAsync)>>2), 1);
}
// If `Atomics.waitAsync` is not implemented, then we will always fall back
// to postMessage and there is no need to do anything here.
};
Module['__emscripten_thread_mailbox_await'] = __emscripten_thread_mailbox_await;
var checkMailbox = () => {
// Only check the mailbox if we have a live pthread runtime. We implement
// pthread_self to return 0 if there is no live runtime.
var pthread_ptr = _pthread_self();
if (pthread_ptr) {
// If we are using Atomics.waitAsync as our notification mechanism, wait
// for a notification before processing the mailbox to avoid missing any
// work that could otherwise arrive after we've finished processing the
// mailbox and before we're ready for the next notification.
__emscripten_thread_mailbox_await(pthread_ptr);
callUserCallback(__emscripten_check_mailbox);
}
};
Module['checkMailbox'] = checkMailbox;
var __emscripten_notify_mailbox_postmessage = (targetThreadId, currThreadId, mainThreadId) => {
if (targetThreadId == currThreadId) {
setTimeout(checkMailbox);
} else if (ENVIRONMENT_IS_PTHREAD) {
postMessage({'targetThread' : targetThreadId, 'cmd' : 'checkMailbox'});
} else {
var worker = PThread.pthreads[targetThreadId];
if (!worker) {
err(`Cannot send message to thread with ID ${targetThreadId}, unknown thread ID!`);
return;
}
worker.postMessage({'cmd' : 'checkMailbox'});
}
};
var proxiedJSCallArgs = [];
var __emscripten_receive_on_main_thread_js = (funcIndex, emAsmAddr, callingThread, numCallArgs, args) => {
// Sometimes we need to backproxy events to the calling thread (e.g.
// HTML5 DOM events handlers such as
// emscripten_set_mousemove_callback()), so keep track in a globally
// accessible variable about the thread that initiated the proxying.
proxiedJSCallArgs.length = numCallArgs;
var b = ((args)>>3);
for (var i = 0; i < numCallArgs; i++) {
proxiedJSCallArgs[i] = HEAPF64[b + i];
}
// Proxied JS library funcs use funcIndex and EM_ASM functions use emAsmAddr
assert(!emAsmAddr);
var func = proxiedFunctionTable[funcIndex];
assert(!(funcIndex && emAsmAddr));
assert(func.length == numCallArgs, 'Call args mismatch in _emscripten_receive_on_main_thread_js');
PThread.currentProxiedOperationCallerThread = callingThread;
var rtn = func(...proxiedJSCallArgs);
PThread.currentProxiedOperationCallerThread = 0;
// Proxied functions can return any type except bigint. All other types
// cooerce to f64/double (the return type of this function in C) but not
// bigint.
assert(typeof rtn != "bigint");
return rtn;
};
var __emscripten_thread_set_strongref = (thread) => {
// Called when a thread needs to be strongly referenced.
// Currently only used for:
// - keeping the "main" thread alive in PROXY_TO_PTHREAD mode;
// - crashed threads that needs to propagate the uncaught exception
// back to the main thread.
if (ENVIRONMENT_IS_NODE) {
PThread.pthreads[thread].ref();
}
};
var _emscripten_check_blocking_allowed = () => {
if (ENVIRONMENT_IS_NODE) return;
if (ENVIRONMENT_IS_WORKER) return; // Blocking in a worker/pthread is fine.
warnOnce('Blocking on the main thread is very dangerous, see https://emscripten.org/docs/porting/pthreads.html#blocking-on-the-main-browser-thread');
};
var _emscripten_date_now = () => Date.now();
var runtimeKeepalivePush = () => {
runtimeKeepaliveCounter += 1;
};
var _emscripten_exit_with_live_runtime = () => {
runtimeKeepalivePush();
throw 'unwind';
};
var _emscripten_get_now;
// Pthreads need their clocks synchronized to the execution of the main
// thread, so, when using them, make sure to adjust all timings to the
// respective time origins.
_emscripten_get_now = () => performance.timeOrigin + performance.now();
;
var getHeapMax = () =>
HEAPU8.length;
var abortOnCannotGrowMemory = (requestedSize) => {
abort(`Cannot enlarge memory arrays to size ${requestedSize} bytes (OOM). Either (1) compile with -sINITIAL_MEMORY=X with X higher than the current value ${HEAP8.length}, (2) compile with -sALLOW_MEMORY_GROWTH which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -sABORTING_MALLOC=0`);
};
var _emscripten_resize_heap = (requestedSize) => {
var oldSize = HEAPU8.length;
// With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
requestedSize >>>= 0;
abortOnCannotGrowMemory(requestedSize);
};
var printCharBuffers = [null,[],[]];
var printChar = (stream, curr) => {
var buffer = printCharBuffers[stream];
assert(buffer);
if (curr === 0 || curr === 10) {
(stream === 1 ? out : err)(UTF8ArrayToString(buffer, 0));
buffer.length = 0;
} else {
buffer.push(curr);
}
};
var flush_NO_FILESYSTEM = () => {
// flush anything remaining in the buffers during shutdown
_fflush(0);
if (printCharBuffers[1].length) printChar(1, 10);
if (printCharBuffers[2].length) printChar(2, 10);
};
var SYSCALLS = {
varargs:undefined,
get() {
assert(SYSCALLS.varargs != undefined);
// the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
var ret = HEAP32[((+SYSCALLS.varargs)>>2)];
SYSCALLS.varargs += 4;
return ret;
},
getp() { return SYSCALLS.get() },
getStr(ptr) {
var ret = UTF8ToString(ptr);
return ret;
},
};
function _fd_write(fd, iov, iovcnt, pnum) {
if (ENVIRONMENT_IS_PTHREAD)
return proxyToMainThread(2, 0, 1, fd, iov, iovcnt, pnum);
// hack to support printf in SYSCALLS_REQUIRE_FILESYSTEM=0
var num = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAPU32[((iov)>>2)];
var len = HEAPU32[(((iov)+(4))>>2)];
iov += 8;
for (var j = 0; j < len; j++) {
printChar(fd, HEAPU8[ptr+j]);
}
num += len;
}
HEAPU32[((pnum)>>2)] = num;
return 0;
}
var getCFunc = (ident) => {
var func = Module['_' + ident]; // closure exported function
assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
return func;
};
var writeArrayToMemory = (array, buffer) => {
assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
HEAP8.set(array, buffer);
};
var 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;
};
var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
assert(typeof str === 'string', `stringToUTF8Array expects a string (got ${typeof str})`);
// 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;
};
var 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);
};
var stringToUTF8OnStack = (str) => {
var size = lengthBytesUTF8(str) + 1;
var ret = stackAlloc(size);
stringToUTF8(str, ret, size);
return ret;
};
/**
* @param {string|null=} returnType
* @param {Array=} argTypes
* @param {Arguments|Array=} args
* @param {Object=} opts
*/
var ccall = (ident, returnType, argTypes, args, opts) => {
// For fast lookup of conversion functions
var toC = {
'string': (str) => {
var ret = 0;
if (str !== null && str !== undefined && str !== 0) { // null string
// at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
ret = stringToUTF8OnStack(str);
}
return ret;
},
'array': (arr) => {
var ret = stackAlloc(arr.length);
writeArrayToMemory(arr, ret);
return ret;
}
};
function convertReturnValue(ret) {
if (returnType === 'string') {
return UTF8ToString(ret);
}
if (returnType === 'boolean') return Boolean(ret);
return ret;
}
var func = getCFunc(ident);
var cArgs = [];
var stack = 0;
assert(returnType !== 'array', 'Return type should not be "array".');
if (args) {
for (var i = 0; i < args.length; i++) {
var converter = toC[argTypes[i]];
if (converter) {
if (stack === 0) stack = stackSave();
cArgs[i] = converter(args[i]);
} else {
cArgs[i] = args[i];
}
}
}
var ret = func(...cArgs);
function onDone(ret) {
if (stack !== 0) stackRestore(stack);
return convertReturnValue(ret);
}
ret = onDone(ret);
return ret;
};
/**
* @param {string=} returnType
* @param {Array=} argTypes
* @param {Object=} opts
*/
var cwrap = (ident, returnType, argTypes, opts) => {
return (...args) => ccall(ident, returnType, argTypes, args, opts);
};
PThread.init();;
// proxiedFunctionTable specifies the list of functions that can be called
// either synchronously or asynchronously from other threads in postMessage()d
// or internally queued events. This way a pthread in a Worker can synchronously
// access e.g. the DOM on the main thread.
var proxiedFunctionTable = [
_proc_exit,
exitOnMainThread,
_fd_write
];
function checkIncomingModuleAPI() {
ignoredModuleProp('fetchSettings');
}
var wasmImports = {
/** @export */
__assert_fail: ___assert_fail,
/** @export */
__emscripten_init_main_thread_js: ___emscripten_init_main_thread_js,
/** @export */
__emscripten_thread_cleanup: ___emscripten_thread_cleanup,
/** @export */
_emscripten_get_now_is_monotonic: __emscripten_get_now_is_monotonic,
/** @export */
_emscripten_notify_mailbox_postmessage: __emscripten_notify_mailbox_postmessage,
/** @export */
_emscripten_receive_on_main_thread_js: __emscripten_receive_on_main_thread_js,
/** @export */
_emscripten_thread_mailbox_await: __emscripten_thread_mailbox_await,
/** @export */
_emscripten_thread_set_strongref: __emscripten_thread_set_strongref,
/** @export */
emscripten_check_blocking_allowed: _emscripten_check_blocking_allowed,
/** @export */
emscripten_date_now: _emscripten_date_now,
/** @export */
emscripten_exit_with_live_runtime: _emscripten_exit_with_live_runtime,
/** @export */
emscripten_get_now: _emscripten_get_now,
/** @export */
emscripten_resize_heap: _emscripten_resize_heap,
/** @export */
exit: _exit,
/** @export */
fd_write: _fd_write,
/** @export */
memory: wasmMemory
};
var wasmExports = createWasm();
var ___wasm_call_ctors = createExportWrapper('__wasm_call_ctors');
var _convexHull = Module['_convexHull'] = createExportWrapper('convexHull');
var __emscripten_tls_init = Module['__emscripten_tls_init'] = createExportWrapper('_emscripten_tls_init');
var _pthread_self = Module['_pthread_self'] = () => (_pthread_self = Module['_pthread_self'] = wasmExports['pthread_self'])();
var __emscripten_thread_init = Module['__emscripten_thread_init'] = createExportWrapper('_emscripten_thread_init');
var __emscripten_thread_crashed = Module['__emscripten_thread_crashed'] = createExportWrapper('_emscripten_thread_crashed');
var _fflush = createExportWrapper('fflush');
var _emscripten_main_runtime_thread_id = createExportWrapper('emscripten_main_runtime_thread_id');
var _emscripten_main_thread_process_queued_calls = createExportWrapper('emscripten_main_thread_process_queued_calls');
var __emscripten_run_on_main_thread_js = createExportWrapper('_emscripten_run_on_main_thread_js');
var __emscripten_thread_free_data = createExportWrapper('_emscripten_thread_free_data');
var __emscripten_thread_exit = Module['__emscripten_thread_exit'] = createExportWrapper('_emscripten_thread_exit');
var __emscripten_check_mailbox = createExportWrapper('_emscripten_check_mailbox');
var _malloc = Module['_malloc'] = createExportWrapper('malloc');
var _free = Module['_free'] = createExportWrapper('free');
var _emscripten_stack_get_base = () => (_emscripten_stack_get_base = wasmExports['emscripten_stack_get_base'])();
var _emscripten_stack_get_end = () => (_emscripten_stack_get_end = wasmExports['emscripten_stack_get_end'])();
var _emscripten_stack_init = () => (_emscripten_stack_init = wasmExports['emscripten_stack_init'])();
var _emscripten_stack_set_limits = (a0, a1) => (_emscripten_stack_set_limits = wasmExports['emscripten_stack_set_limits'])(a0, a1);
var _emscripten_stack_get_free = () => (_emscripten_stack_get_free = wasmExports['emscripten_stack_get_free'])();
var stackSave = createExportWrapper('stackSave');
var stackRestore = createExportWrapper('stackRestore');
var stackAlloc = createExportWrapper('stackAlloc');
var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'])();
var dynCall_jiji = Module['dynCall_jiji'] = createExportWrapper('dynCall_jiji');
// include: postamble.js
// === Auto-generated postamble setup entry stuff ===
Module['wasmMemory'] = wasmMemory;
Module['keepRuntimeAlive'] = keepRuntimeAlive;
Module['ccall'] = ccall;
Module['cwrap'] = cwrap;
Module['ExitStatus'] = ExitStatus;
var missingLibrarySymbols = [
'writeI53ToI64',
'writeI53ToI64Clamped',
'writeI53ToI64Signaling',
'writeI53ToU64Clamped',
'writeI53ToU64Signaling',
'readI53FromI64',
'readI53FromU64',
'convertI32PairToI53',
'convertU32PairToI53',
'growMemory',
'isLeapYear',
'ydayFromDate',
'arraySum',
'addDays',
'inetPton4',
'inetNtop4',
'inetPton6',
'inetNtop6',
'readSockaddr',
'writeSockaddr',
'initRandomFill',
'randomFill',
'getCallstack',
'emscriptenLog',
'convertPCtoSourceLocation',
'readEmAsmArgs',
'jstoi_q',
'getExecutableName',
'listenOnce',
'autoResumeAudioContext',
'dynCallLegacy',
'getDynCaller',
'dynCall',
'runtimeKeepalivePop',
'asmjsMangle',
'asyncLoad',
'alignMemory',
'mmapAlloc',
'HandleAllocator',
'getNativeTypeSize',
'STACK_SIZE',
'STACK_ALIGN',
'POINTER_SIZE',
'ASSERTIONS',
'uleb128Encode',
'sigToWasmTypes',
'generateFuncType',
'convertJsFunctionToWasm',
'getEmptyTableSlot',
'updateTableMap',
'getFunctionAddress',
'addFunction',
'removeFunction',
'reallyNegative',
'unSign',
'strLen',
'reSign',
'formatString',
'intArrayFromString',
'intArrayToString',
'AsciiToString',
'stringToAscii',
'UTF16ToString',
'stringToUTF16',
'lengthBytesUTF16',
'UTF32ToString',
'stringToUTF32',
'lengthBytesUTF32',
'stringToNewUTF8',
'registerKeyEventCallback',
'maybeCStringToJsString',
'findEventTarget',
'getBoundingClientRect',
'fillMouseEventData',
'registerMouseEventCallback',
'registerWheelEventCallback',
'registerUiEventCallback',
'registerFocusEventCallback',
'fillDeviceOrientationEventData',
'registerDeviceOrientationEventCallback',
'fillDeviceMotionEventData',
'registerDeviceMotionEventCallback',
'screenOrientation',
'fillOrientationChangeEventData',
'registerOrientationChangeEventCallback',
'fillFullscreenChangeEventData',
'registerFullscreenChangeEventCallback',
'JSEvents_requestFullscreen',
'JSEvents_resizeCanvasForFullscreen',
'registerRestoreOldStyle',
'hideEverythingExceptGivenElement',
'restoreHiddenElements',
'setLetterbox',
'softFullscreenResizeWebGLRenderTarget',
'doRequestFullscreen',
'fillPointerlockChangeEventData',
'registerPointerlockChangeEventCallback',
'registerPointerlockErrorEventCallback',
'requestPointerLock',
'fillVisibilityChangeEventData',
'registerVisibilityChangeEventCallback',
'registerTouchEventCallback',
'fillGamepadEventData',
'registerGamepadEventCallback',
'registerBeforeUnloadEventCallback',
'fillBatteryEventData',
'battery',
'registerBatteryEventCallback',
'setCanvasElementSizeCallingThread',
'setCanvasElementSizeMainThread',
'setCanvasElementSize',
'getCanvasSizeCallingThread',
'getCanvasSizeMainThread',
'getCanvasElementSize',
'jsStackTrace',
'stackTrace',
'getEnvStrings',
'checkWasiClock',
'wasiRightsToMuslOFlags',
'wasiOFlagsToMuslOFlags',
'createDyncallWrapper',
'safeSetTimeout',
'setImmediateWrapped',
'clearImmediateWrapped',
'polyfillSetImmediate',
'getPromise',
'makePromise',
'idsToPromises',
'makePromiseCallback',
'ExceptionInfo',
'findMatchingCatch',
'Browser_asyncPrepareDataCounter',
'setMainLoop',
'getSocketFromFD',
'getSocketAddress',
'FS_createPreloadedFile',
'FS_modeStringToFlags',
'FS_getMode',
'FS_stdin_getChar',
'FS_createDataFile',
'FS_unlink',
'FS_mkdirTree',
'_setNetworkCallback',
'heapObjectForWebGLType',
'toTypedArrayIndex',
'webgl_enable_ANGLE_instanced_arrays',
'webgl_enable_OES_vertex_array_object',
'webgl_enable_WEBGL_draw_buffers',
'webgl_enable_WEBGL_multi_draw',
'emscriptenWebGLGet',
'computeUnpackAlignedImageSize',
'colorChannelsInGlTextureFormat',
'emscriptenWebGLGetTexPixelData',
'emscriptenWebGLGetUniform',
'webglGetUniformLocation',
'webglPrepareUniformLocationsBeforeFirstUse',
'webglGetLeftBracePos',
'emscriptenWebGLGetVertexAttrib',
'__glGetActiveAttribOrUniform',
'writeGLArray',
'emscripten_webgl_destroy_context_before_on_calling_thread',
'registerWebGlEventCallback',
'runAndAbortIfError',
'ALLOC_NORMAL',
'ALLOC_STACK',
'allocate',
'writeStringToMemory',
'writeAsciiToMemory',
'setErrNo',
'demangle',
];
missingLibrarySymbols.forEach(missingLibrarySymbol)
var unexportedSymbols = [
'run',
'addOnPreRun',
'addOnInit',
'addOnPreMain',
'addOnExit',
'addOnPostRun',
'addRunDependency',
'removeRunDependency',
'FS_createFolder',
'FS_createPath',
'FS_createLazyFile',
'FS_createLink',
'FS_createDevice',
'FS_readFile',
'out',
'err',
'callMain',
'abort',
'wasmExports',
'stackAlloc',
'stackSave',
'stackRestore',
'getTempRet0',
'setTempRet0',
'writeStackCookie',
'checkStackCookie',
'convertI32PairToI53Checked',
'ptrToString',
'zeroMemory',
'exitJS',
'getHeapMax',
'abortOnCannotGrowMemory',
'ENV',
'MONTH_DAYS_REGULAR',
'MONTH_DAYS_LEAP',
'MONTH_DAYS_REGULAR_CUMULATIVE',
'MONTH_DAYS_LEAP_CUMULATIVE',
'ERRNO_CODES',
'ERRNO_MESSAGES',
'DNS',
'Protocols',
'Sockets',
'timers',
'warnOnce',
'UNWIND_CACHE',
'readEmAsmArgsArray',
'jstoi_s',
'handleException',
'runtimeKeepalivePush',
'callUserCallback',
'maybeExit',
'wasmTable',
'noExitRuntime',
'getCFunc',
'freeTableIndexes',
'functionsInTableMap',
'setValue',
'getValue',
'PATH',
'PATH_FS',
'UTF8Decoder',
'UTF8ArrayToString',
'UTF8ToString',
'stringToUTF8Array',
'stringToUTF8',
'lengthBytesUTF8',
'UTF16Decoder',
'stringToUTF8OnStack',
'writeArrayToMemory',
'JSEvents',
'specialHTMLTargets',
'findCanvasEventTarget',
'currentFullscreenStrategy',
'restoreOldWindowedStyle',
'flush_NO_FILESYSTEM',
'promiseMap',
'uncaughtExceptionCount',
'exceptionLast',
'exceptionCaught',
'Browser',
'getPreloadedImageData__data',
'wget',
'SYSCALLS',
'preloadPlugins',
'FS_stdin_getChar_buffer',
'FS',
'MEMFS',
'TTY',
'PIPEFS',
'SOCKFS',
'tempFixedLengthArray',
'miniTempWebGLFloatBuffers',
'miniTempWebGLIntBuffers',
'GL',
'AL',
'GLUT',
'EGL',
'GLEW',
'IDBStore',
'SDL',
'SDL_gfx',
'allocateUTF8',
'allocateUTF8OnStack',
'PThread',
'terminateWorker',
'killThread',
'cleanupThread',
'registerTLSInit',
'cancelThread',
'spawnThread',
'exitOnMainThread',
'proxyToMainThread',
'proxiedJSCallArgs',
'invokeEntryPoint',
'checkMailbox',
];
unexportedSymbols.forEach(unexportedRuntimeSymbol);
var calledRun;
dependenciesFulfilled = function runCaller() {
// If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
if (!calledRun) run();
if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
};
function stackCheckInit() {
// This is normally called automatically during __wasm_call_ctors but need to
// get these values before even running any of the ctors so we call it redundantly
// here.
// See $establishStackSpace for the equivalent code that runs on a thread
assert(!ENVIRONMENT_IS_PTHREAD);
_emscripten_stack_init();
// TODO(sbc): Move writeStackCookie to native to to avoid this.
writeStackCookie();
}
function run() {
if (runDependencies > 0) {
return;
}
if (!ENVIRONMENT_IS_PTHREAD)
stackCheckInit();
if (ENVIRONMENT_IS_PTHREAD) {
initRuntime();
startWorker(Module);
return;
}
preRun();
// a preRun added a dependency, run will be called later
if (runDependencies > 0) {
return;
}
function doRun() {
// run may have just been called through dependencies being fulfilled just in this very frame,
// or while the async setStatus time below was happening
if (calledRun) return;
calledRun = true;
Module['calledRun'] = true;
if (ABORT) return;
initRuntime();
if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();
assert(!Module['_main'], 'compiled without a main, but one is present. if you added it from JS, use Module["onRuntimeInitialized"]');
postRun();
}
if (Module['setStatus']) {
Module['setStatus']('Running...');
setTimeout(function() {
setTimeout(function() {
Module['setStatus']('');
}, 1);
doRun();
}, 1);
} else
{
doRun();
}
checkStackCookie();
}
function checkUnflushedContent() {
// Compiler settings do not allow exiting the runtime, so flushing
// the streams is not possible. but in ASSERTIONS mode we check
// if there was something to flush, and if so tell the user they
// should request that the runtime be exitable.
// Normally we would not even include flush() at all, but in ASSERTIONS
// builds we do so just for this check, and here we see if there is any
// content to flush, that is, we check if there would have been
// something a non-ASSERTIONS build would have not seen.
// How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
// mode (which has its own special function for this; otherwise, all
// the code is inside libc)
var oldOut = out;
var oldErr = err;
var has = false;
out = err = (x) => {
has = true;
}
try { // it doesn't matter if it fails
flush_NO_FILESYSTEM();
} catch(e) {}
out = oldOut;
err = oldErr;
if (has) {
warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the Emscripten FAQ), or make sure to emit a newline when you printf etc.');
warnOnce('(this may also be due to not including full filesystem support - try building with -sFORCE_FILESYSTEM)');
}
}
if (Module['preInit']) {
if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
while (Module['preInit'].length > 0) {
Module['preInit'].pop()();
}
}
run();
// end include: postamble.js