// 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(moduleArg) => Promise // 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 : {}; // 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 WorkerGlobalScope != 'undefined'; // 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' && process.type != 'renderer'; var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; if (ENVIRONMENT_IS_NODE) { } // --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; }; // `/` 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 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 + ')'); } // 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'); scriptDirectory = __dirname + '/'; // include: node_shell_read.js readBinary = (filename) => { // We need to re-wrap `file://` strings to URLs. filename = isFileURI(filename) ? new URL(filename) : filename; var ret = fs.readFileSync(filename); assert(Buffer.isBuffer(ret)); return ret; }; readAsync = async (filename, binary = true) => { // See the comment in the `readBinary` function. filename = isFileURI(filename) ? new URL(filename) : filename; var ret = fs.readFileSync(filename, binary ? undefined : 'utf8'); assert(binary ? Buffer.isBuffer(ret) : typeof ret == 'string'); return ret; }; // 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; } quit_ = (status, toThrow) => { process.exitCode = status; throw toThrow; }; } else if (ENVIRONMENT_IS_SHELL) { if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof WorkerGlobalScope != 'undefined') 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?)'); } 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.slice(0, scriptDirectory.replace(/[?#].*/, '').lastIndexOf('/')+1); } if (!(typeof window == 'object' || typeof WorkerGlobalScope != 'undefined')) 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?)'); { // include: web_or_worker_shell_read.js 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 = async (url) => { // 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 XHR on webview if URL is a file URL. if (isFileURI(url)) { return new Promise((resolve, reject) => { 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 resolve(xhr.response); return; } reject(xhr.status); }; xhr.onerror = reject; xhr.send(null); }); } var response = await fetch(url, { credentials: 'same-origin' }); if (response.ok) { return response.arrayBuffer(); } throw new Error(response.status + ' : ' + response.url); }; // end include: web_or_worker_shell_read.js } } else { throw new Error('environment detection error'); } var out = Module['print'] || console.log.bind(console); var err = Module['printErr'] || console.error.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. 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'); // 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'); 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('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_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 = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary'); if (typeof WebAssembly != 'object') { err('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; // 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, /* BigInt64Array type is not correctly defined in closure /** not-@type {!BigInt64Array} */ HEAP64, /* BigUint64Array type is not correctly defined in closure /** not-t@type {!BigUint64Array} */ HEAPU64, /** @type {!Float64Array} */ HEAPF64; var runtimeInitialized = false; /** * Indicates whether filename is delivered via file protocol (as opposed to http/https) * @noinline */ var isFileURI = (filename) => filename.startsWith('file://'); // include: runtime_shared.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)} ${ptrToString(cookie1)}`); } // Also test the global address 0 for integrity. if (HEAPU32[((0)>>2)] != 0x63736d65 /* 'emsc' */) { abort('Runtime error: The application has corrupted its heap memory area (address zero)!'); } } // end include: runtime_stack_check.js // include: runtime_exceptions.js // end include: runtime_exceptions.js // include: runtime_debug.js // Endianness check (() => { var h16 = new Int16Array(1); var h8 = new Int8Array(h16.buffer); h16[0] = 0x6373; if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)'; })(); if (Module['ENVIRONMENT']) { throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)'); } function legacyModuleProp(prop, newName, incoming=true) { if (!Object.getOwnPropertyDescriptor(Module, prop)) { Object.defineProperty(Module, prop, { configurable: true, get() { let extra = incoming ? ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)' : ''; abort(`\`Module.${prop}\` has been replaced by \`${newName}\`` + extra); } }); } } function ignoredModuleProp(prop) { if (Object.getOwnPropertyDescriptor(Module, prop)) { abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`); } } // forcing the filesystem exports a few things by default function isExportedByForceFilesystem(name) { return name === 'FS_createPath' || name === 'FS_createDataFile' || name === 'FS_createPreloadedFile' || name === 'FS_unlink' || name === 'addRunDependency' || // The old FS has some functionality that WasmFS lacks. name === 'FS_createLazyFile' || name === 'FS_createDevice' || name === 'removeRunDependency'; } /** * Intercept access to a global symbol. This enables us to give informative * warnings/errors when folks attempt to use symbols they did not include in * their build, or no symbols that no longer exist. */ function hookGlobalSymbolAccess(sym, func) { if (typeof globalThis != 'undefined' && !Object.getOwnPropertyDescriptor(globalThis, sym)) { Object.defineProperty(globalThis, sym, { configurable: true, get() { func(); return undefined; } }); } } function missingGlobal(sym, msg) { hookGlobalSymbolAccess(sym, () => { warnOnce(`\`${sym}\` is not longer defined by emscripten. ${msg}`); }); } missingGlobal('buffer', 'Please use HEAP8.buffer or wasmMemory.buffer'); missingGlobal('asm', 'Please use wasmExports instead'); function missingLibrarySymbol(sym) { hookGlobalSymbolAccess(sym, () => { // Can't `abort()` here because it would break code that does runtime // checks. e.g. `if (typeof SDL === 'undefined')`. var msg = `\`${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='${librarySymbol}')`; if (isExportedByForceFilesystem(sym)) { msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you'; } warnOnce(msg); }); // Any symbol that is not included from the JS library is also (by definition) // not exported on the Module object. unexportedRuntimeSymbol(sym); } function unexportedRuntimeSymbol(sym) { if (!Object.getOwnPropertyDescriptor(Module, sym)) { Object.defineProperty(Module, sym, { configurable: true, get() { var msg = `'${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) { // 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 // include: memoryprofiler.js // end include: memoryprofiler.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); Module['HEAP64'] = HEAP64 = new BigInt64Array(b); Module['HEAPU64'] = HEAPU64 = new BigUint64Array(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'); // If memory is defined in wasm, the user can't provide it, or set INITIAL_MEMORY assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -sIMPORTED_MEMORY to define wasmMemory externally'); assert(!Module['INITIAL_MEMORY'], 'Detected runtime INITIAL_MEMORY setting. Use -sIMPORTED_MEMORY to define wasmMemory dynamically'); function preRun() { if (Module['preRun']) { if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; while (Module['preRun'].length) { addOnPreRun(Module['preRun'].shift()); } } callRuntimeCallbacks(onPreRuns); } function initRuntime() { assert(!runtimeInitialized); runtimeInitialized = true; checkStackCookie(); wasmExports['__wasm_call_ctors'](); } function preMain() { checkStackCookie(); } function postRun() { checkStackCookie(); if (Module['postRun']) { if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; while (Module['postRun'].length) { addOnPostRun(Module['postRun'].shift()); } } callRuntimeCallbacks(onPostRuns); } // 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 dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled var runDependencyTracking = {}; var runDependencyWatcher = null; 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; // 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; } // 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; function createExportWrapper(name, nargs) { return (...args) => { assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`); var f = wasmExports[name]; assert(f, `exported native function \`${name}\` not found`); // Only assert for too many arguments. Too few can be valid since the missing arguments will be zero filled. assert(args.length <= nargs, `native function \`${name}\` called with ${args.length} args but expects ${nargs}`); return f(...args); }; } var wasmBinaryFile; function findWasmBinary() { return locateFile('output.wasm'); } 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'; } async function getWasmBinary(binaryFile) { // If we don't have the binary yet, load it asynchronously using readAsync. if (!wasmBinary) { // Fetch the binary using readAsync try { var response = await readAsync(binaryFile); return new Uint8Array(response); } catch { // Fall back to getBinarySync below; } } // Otherwise, getBinarySync should be able to get it synchronously return getBinarySync(binaryFile); } async function instantiateArrayBuffer(binaryFile, imports) { try { var binary = await getWasmBinary(binaryFile); var instance = await WebAssembly.instantiate(binary, imports); return instance; } catch (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); } } async function instantiateAsync(binary, binaryFile, imports) { if (!binary && typeof WebAssembly.instantiateStreaming == 'function' // 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 ) { try { var response = fetch(binaryFile, { credentials: 'same-origin' }); var instantiationResult = await WebAssembly.instantiateStreaming(response, imports); return instantiationResult; } catch (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'); // fall back of instantiateArrayBuffer below }; } return instantiateArrayBuffer(binaryFile, imports); } function getWasmImports() { // prepare imports return { 'env': wasmImports, 'wasi_snapshot_preview1': wasmImports, } } // Create the wasm instance. // Receives the wasm imports, returns the exports. async function createWasm() { // 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; wasmMemory = wasmExports['memory']; assert(wasmMemory, 'memory not found in wasm exports'); updateMemoryViews(); wasmTable = wasmExports['__indirect_function_table']; assert(wasmTable, 'table not found in wasm exports'); 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; // 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 PTHREADS-enabled path. return receiveInstance(result['instance']); } var info = getWasmImports(); // 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']) { return new Promise((resolve, reject) => { try { Module['instantiateWasm'](info, (mod, inst) => { receiveInstance(mod, inst); resolve(mod.exports); }); } catch(e) { err(`Module.instantiateWasm callback failed with error: ${e}`); reject(e); } }); } wasmBinaryFile ??= findWasmBinary(); var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info); var exports = receiveInstantiationResult(result); return exports; } // === Body === // end include: preamble.js class ExitStatus { name = 'ExitStatus'; constructor(status) { this.message = `Program terminated with exit(${status})`; this.status = status; } } var callRuntimeCallbacks = (callbacks) => { while (callbacks.length > 0) { // Pass the module as the first argument. callbacks.shift()(Module); } }; var onPostRuns = []; var addOnPostRun = (cb) => onPostRuns.unshift(cb); var onPreRuns = []; var addOnPreRun = (cb) => onPreRuns.unshift(cb); /** * @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': return HEAP64[((ptr)>>3)]; case 'float': return HEAPF32[((ptr)>>2)]; case 'double': return HEAPF64[((ptr)>>3)]; case '*': return HEAPU32[((ptr)>>2)]; default: abort(`invalid type for getValue: ${type}`); } } var noExitRuntime = Module['noExitRuntime'] || true; 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'); }; /** * @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': HEAP64[((ptr)>>3)] = BigInt(value); break; 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}`); } } var stackRestore = (val) => __emscripten_stack_restore(val); var stackSave = () => _emscripten_stack_get_current(); var warnOnce = (text) => { warnOnce.shown ||= {}; if (!warnOnce.shown[text]) { warnOnce.shown[text] = 1; if (ENVIRONMENT_IS_NODE) text = 'warning: ' + text; err(text); } }; var __abort_js = () => abort('native code called abort()'); var isLeapYear = (year) => year%4 === 0 && (year%100 !== 0 || year%400 === 0); var MONTH_DAYS_LEAP_CUMULATIVE = [0,31,60,91,121,152,182,213,244,274,305,335]; var MONTH_DAYS_REGULAR_CUMULATIVE = [0,31,59,90,120,151,181,212,243,273,304,334]; var ydayFromDate = (date) => { var leap = isLeapYear(date.getFullYear()); var monthDaysCumulative = (leap ? MONTH_DAYS_LEAP_CUMULATIVE : MONTH_DAYS_REGULAR_CUMULATIVE); var yday = monthDaysCumulative[date.getMonth()] + date.getDate() - 1; // -1 since it's days since Jan 1 return yday; }; var INT53_MAX = 9007199254740992; var INT53_MIN = -9007199254740992; var bigintToI53Checked = (num) => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num); function __localtime_js(time, tmPtr) { time = bigintToI53Checked(time); var date = new Date(time*1000); HEAP32[((tmPtr)>>2)] = date.getSeconds(); HEAP32[(((tmPtr)+(4))>>2)] = date.getMinutes(); HEAP32[(((tmPtr)+(8))>>2)] = date.getHours(); HEAP32[(((tmPtr)+(12))>>2)] = date.getDate(); HEAP32[(((tmPtr)+(16))>>2)] = date.getMonth(); HEAP32[(((tmPtr)+(20))>>2)] = date.getFullYear()-1900; HEAP32[(((tmPtr)+(24))>>2)] = date.getDay(); var yday = ydayFromDate(date)|0; HEAP32[(((tmPtr)+(28))>>2)] = yday; HEAP32[(((tmPtr)+(36))>>2)] = -(date.getTimezoneOffset() * 60); // Attention: DST is in December in South, and some regions don't have DST at all. var start = new Date(date.getFullYear(), 0, 1); var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset(); var winterOffset = start.getTimezoneOffset(); var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset))|0; HEAP32[(((tmPtr)+(32))>>2)] = dst; ; } 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 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 __tzset_js = (timezone, daylight, std_name, dst_name) => { // TODO: Use (malleable) environment variables instead of system settings. var currentYear = new Date().getFullYear(); var winter = new Date(currentYear, 0, 1); var summer = new Date(currentYear, 6, 1); var winterOffset = winter.getTimezoneOffset(); var summerOffset = summer.getTimezoneOffset(); // Local standard timezone offset. Local standard time is not adjusted for // daylight savings. This code uses the fact that getTimezoneOffset returns // a greater value during Standard Time versus Daylight Saving Time (DST). // Thus it determines the expected output during Standard Time, and it // compares whether the output of the given date the same (Standard) or less // (DST). var stdTimezoneOffset = Math.max(winterOffset, summerOffset); // timezone is specified as seconds west of UTC ("The external variable // `timezone` shall be set to the difference, in seconds, between // Coordinated Universal Time (UTC) and local standard time."), the same // as returned by stdTimezoneOffset. // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html HEAPU32[((timezone)>>2)] = stdTimezoneOffset * 60; HEAP32[((daylight)>>2)] = Number(winterOffset != summerOffset); var extractZone = (timezoneOffset) => { // Why inverse sign? // Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset var sign = timezoneOffset >= 0 ? "-" : "+"; var absOffset = Math.abs(timezoneOffset) var hours = String(Math.floor(absOffset / 60)).padStart(2, "0"); var minutes = String(absOffset % 60).padStart(2, "0"); return `UTC${sign}${hours}${minutes}`; } var winterName = extractZone(winterOffset); var summerName = extractZone(summerOffset); assert(winterName); assert(summerName); assert(lengthBytesUTF8(winterName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${winterName})`); assert(lengthBytesUTF8(summerName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${summerName})`); if (summerOffset < winterOffset) { // Northern hemisphere stringToUTF8(winterName, std_name, 17); stringToUTF8(summerName, dst_name, 17); } else { stringToUTF8(winterName, dst_name, 17); stringToUTF8(summerName, std_name, 17); } }; var _emscripten_date_now = () => Date.now(); function _emscripten_fetch_free(id) { if (Fetch.xhrs.has(id)) { var xhr = Fetch.xhrs.get(id); Fetch.xhrs.free(id); // check if fetch is still in progress and should be aborted if (xhr.readyState > 0 && xhr.readyState < 4) { xhr.abort(); } } } var onExits = []; var addOnExit = (cb) => onExits.unshift(cb); var JSEvents = { memcpy(target, src, size) { HEAP8.set(HEAP8.subarray(src, src + size), target); }, removeAllEventListeners() { while (JSEvents.eventHandlers.length) { JSEvents._removeHandler(JSEvents.eventHandlers.length - 1); } JSEvents.deferredCalls = []; }, inEventHandler:0, deferredCalls:[], deferCall(targetFunction, precedence, argsList) { function arraysHaveEqualContent(arrA, arrB) { if (arrA.length != arrB.length) return false; for (var i in arrA) { if (arrA[i] != arrB[i]) return false; } return true; } // Test if the given call was already queued, and if so, don't add it again. for (var call of JSEvents.deferredCalls) { if (call.targetFunction == targetFunction && arraysHaveEqualContent(call.argsList, argsList)) { return; } } JSEvents.deferredCalls.push({ targetFunction, precedence, argsList }); JSEvents.deferredCalls.sort((x,y) => x.precedence < y.precedence); }, removeDeferredCalls(targetFunction) { JSEvents.deferredCalls = JSEvents.deferredCalls.filter((call) => call.targetFunction != targetFunction); }, canPerformEventHandlerRequests() { if (navigator.userActivation) { // Verify against transient activation status from UserActivation API // whether it is possible to perform a request here without needing to defer. See // https://developer.mozilla.org/en-US/docs/Web/Security/User_activation#transient_activation // and https://caniuse.com/mdn-api_useractivation // At the time of writing, Firefox does not support this API: https://bugzilla.mozilla.org/show_bug.cgi?id=1791079 return navigator.userActivation.isActive; } return JSEvents.inEventHandler && JSEvents.currentEventHandler.allowsDeferredCalls; }, runDeferredCalls() { if (!JSEvents.canPerformEventHandlerRequests()) { return; } var deferredCalls = JSEvents.deferredCalls; JSEvents.deferredCalls = []; for (var call of deferredCalls) { call.targetFunction(...call.argsList); } }, eventHandlers:[], removeAllHandlersOnTarget:(target, eventTypeString) => { for (var i = 0; i < JSEvents.eventHandlers.length; ++i) { if (JSEvents.eventHandlers[i].target == target && (!eventTypeString || eventTypeString == JSEvents.eventHandlers[i].eventTypeString)) { JSEvents._removeHandler(i--); } } }, _removeHandler(i) { var h = JSEvents.eventHandlers[i]; h.target.removeEventListener(h.eventTypeString, h.eventListenerFunc, h.useCapture); JSEvents.eventHandlers.splice(i, 1); }, registerOrRemoveHandler(eventHandler) { if (!eventHandler.target) { err('registerOrRemoveHandler: the target element for event handler registration does not exist, when processing the following event handler registration:'); console.dir(eventHandler); return -4; } if (eventHandler.callbackfunc) { eventHandler.eventListenerFunc = function(event) { // Increment nesting count for the event handler. ++JSEvents.inEventHandler; JSEvents.currentEventHandler = eventHandler; // Process any old deferred calls the user has placed. JSEvents.runDeferredCalls(); // Process the actual event, calls back to user C code handler. eventHandler.handlerFunc(event); // Process any new deferred calls that were placed right now from this event handler. JSEvents.runDeferredCalls(); // Out of event handler - restore nesting count. --JSEvents.inEventHandler; }; eventHandler.target.addEventListener(eventHandler.eventTypeString, eventHandler.eventListenerFunc, eventHandler.useCapture); JSEvents.eventHandlers.push(eventHandler); } else { for (var i = 0; i < JSEvents.eventHandlers.length; ++i) { if (JSEvents.eventHandlers[i].target == eventHandler.target && JSEvents.eventHandlers[i].eventTypeString == eventHandler.eventTypeString) { JSEvents._removeHandler(i--); } } } return 0; }, getNodeNameForTarget(target) { if (!target) return ''; if (target == window) return '#window'; if (target == screen) return '#screen'; return target?.nodeName || ''; }, fullscreenEnabled() { return document.fullscreenEnabled // Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitFullscreenEnabled. // TODO: If Safari at some point ships with unprefixed version, update the version check above. || document.webkitFullscreenEnabled ; }, }; var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder() : 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 = 0, maxBytesToRead = NaN) => { 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/NaN 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} */ var UTF8ToString = (ptr, maxBytesToRead) => { assert(typeof ptr == 'number', `UTF8ToString expects a number (got ${typeof ptr})`); return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : ''; }; var maybeCStringToJsString = (cString) => { // "cString > 2" checks if the input is a number, and isn't of the special // values we accept here, EMSCRIPTEN_EVENT_TARGET_* (which map to 0, 1, 2). // In other words, if cString > 2 then it's a pointer to a valid place in // memory, and points to a C string. return cString > 2 ? UTF8ToString(cString) : cString; }; /** @type {Object} */ var specialHTMLTargets = [0, typeof document != 'undefined' ? document : 0, typeof window != 'undefined' ? window : 0]; var findEventTarget = (target) => { target = maybeCStringToJsString(target); var domElement = specialHTMLTargets[target] || (typeof document != 'undefined' ? document.querySelector(target) : null); return domElement; }; var getBoundingClientRect = (e) => specialHTMLTargets.indexOf(e) < 0 ? e.getBoundingClientRect() : {'left':0,'top':0}; var _emscripten_get_element_css_size = (target, width, height) => { target = findEventTarget(target); if (!target) return -4; var rect = getBoundingClientRect(target); HEAPF64[((width)>>3)] = rect.width; HEAPF64[((height)>>3)] = rect.height; return 0; }; var _emscripten_is_main_browser_thread = () => !ENVIRONMENT_IS_WORKER; var wasmTableMirror = []; /** @type {WebAssembly.Table} */ var wasmTable; var getWasmTableEntry = (funcPtr) => { var func = wasmTableMirror[funcPtr]; if (!func) { if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1; /** @suppress {checkTypes} */ wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr); } /** @suppress {checkTypes} */ assert(wasmTable.get(funcPtr) == func, 'JavaScript-side Wasm function table mirror is out of date!'); return func; }; var _emscripten_request_animation_frame_loop = (cb, userData) => { function tick(timeStamp) { if (getWasmTableEntry(cb)(timeStamp, userData)) { requestAnimationFrame(tick); } } return requestAnimationFrame(tick); }; var getHeapMax = () => // Stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate // full 4GB Wasm memories, the size will wrap back to 0 bytes in Wasm side // for any code that deals with heap sizes, which would require special // casing all heap size related code to treat 0 specially. 2147483648; var alignMemory = (size, alignment) => { assert(alignment, "alignment argument is required"); return Math.ceil(size / alignment) * alignment; }; var growMemory = (size) => { var b = wasmMemory.buffer; var pages = ((size - b.byteLength + 65535) / 65536) | 0; try { // round size grow request up to wasm page size (fixed 64KB per spec) wasmMemory.grow(pages); // .grow() takes a delta compared to the previous size updateMemoryViews(); return 1 /*success*/; } catch(e) { err(`growMemory: Attempted to grow heap from ${b.byteLength} bytes to ${size} bytes, but got error: ${e}`); } // implicit 0 return to save code size (caller will cast "undefined" into 0 // anyhow) }; var _emscripten_resize_heap = (requestedSize) => { var oldSize = HEAPU8.length; // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned. requestedSize >>>= 0; // With multithreaded builds, races can happen (another thread might increase the size // in between), so return a failure, and let the caller retry. assert(requestedSize > oldSize); // Memory resize rules: // 1. Always increase heap size to at least the requested size, rounded up // to next page multiple. // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap // geometrically: increase the heap size according to // MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most // overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB). // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap // linearly: increase the heap size by at least // MEMORY_GROWTH_LINEAR_STEP bytes. // 3. Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by // MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest // 4. If we were unable to allocate as much memory, it may be due to // over-eager decision to excessively reserve due to (3) above. // Hence if an allocation fails, cut down on the amount of excess // growth, in an attempt to succeed to perform a smaller allocation. // A limit is set for how much we can grow. We should not exceed that // (the wasm binary specifies it, so if we tried, we'd fail anyhow). var maxHeapSize = getHeapMax(); if (requestedSize > maxHeapSize) { err(`Cannot enlarge memory, requested ${requestedSize} bytes, but the limit is ${maxHeapSize} bytes!`); return false; } // Loop through potential heap size increases. If we attempt a too eager // reservation that fails, cut down on the attempted size and reserve a // smaller bump instead. (max 3 times, chosen somewhat arbitrarily) for (var cutDown = 1; cutDown <= 4; cutDown *= 2) { var overGrownHeapSize = oldSize * (1 + 0.2 / cutDown); // ensure geometric growth // but limit overreserving (default to capping at +96MB overgrowth at most) overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296 ); var newSize = Math.min(maxHeapSize, alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536)); var replacement = growMemory(newSize); if (replacement) { return true; } } err(`Failed to grow the heap from ${oldSize} bytes to ${newSize} bytes, not enough memory!`); return false; }; var findCanvasEventTarget = findEventTarget; var _emscripten_set_canvas_element_size = (target, width, height) => { var canvas = findCanvasEventTarget(target); if (!canvas) return -4; canvas.width = width; canvas.height = height; return 0; }; var fillMouseEventData = (eventStruct, e, target) => { assert(eventStruct % 4 == 0); HEAPF64[((eventStruct)>>3)] = e.timeStamp; var idx = ((eventStruct)>>2); HEAP32[idx + 2] = e.screenX; HEAP32[idx + 3] = e.screenY; HEAP32[idx + 4] = e.clientX; HEAP32[idx + 5] = e.clientY; HEAP8[eventStruct + 24] = e.ctrlKey; HEAP8[eventStruct + 25] = e.shiftKey; HEAP8[eventStruct + 26] = e.altKey; HEAP8[eventStruct + 27] = e.metaKey; HEAP16[idx*2 + 14] = e.button; HEAP16[idx*2 + 15] = e.buttons; HEAP32[idx + 8] = e["movementX"] ; HEAP32[idx + 9] = e["movementY"] ; // Note: rect contains doubles (truncated to placate SAFE_HEAP, which is the same behaviour when writing to HEAP32 anyway) var rect = getBoundingClientRect(target); HEAP32[idx + 10] = e.clientX - (rect.left | 0); HEAP32[idx + 11] = e.clientY - (rect.top | 0); }; var registerMouseEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { JSEvents.mouseEvent ||= _malloc(64); target = findEventTarget(target); var mouseEventHandlerFunc = (e = event) => { // TODO: Make this access thread safe, or this could update live while app is reading it. fillMouseEventData(JSEvents.mouseEvent, e, target); if (getWasmTableEntry(callbackfunc)(eventTypeId, JSEvents.mouseEvent, userData)) e.preventDefault(); }; var eventHandler = { target, allowsDeferredCalls: eventTypeString != 'mousemove' && eventTypeString != 'mouseenter' && eventTypeString != 'mouseleave', // Mouse move events do not allow fullscreen/pointer lock requests to be handled in them! eventTypeString, callbackfunc, handlerFunc: mouseEventHandlerFunc, useCapture }; return JSEvents.registerOrRemoveHandler(eventHandler); }; var _emscripten_set_click_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => registerMouseEventCallback(target, userData, useCapture, callbackfunc, 4, "click", targetThread); var registerUiEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { JSEvents.uiEvent ||= _malloc(36); target = findEventTarget(target); var uiEventHandlerFunc = (e = event) => { if (e.target != target) { // Never take ui events such as scroll via a 'bubbled' route, but always from the direct element that // was targeted. Otherwise e.g. if app logs a message in response to a page scroll, the Emscripten log // message box could cause to scroll, generating a new (bubbled) scroll message, causing a new log print, // causing a new scroll, etc.. return; } var b = document.body; // Take document.body to a variable, Closure compiler does not outline access to it on its own. if (!b) { // During a page unload 'body' can be null, with "Cannot read property 'clientWidth' of null" being thrown return; } var uiEvent = JSEvents.uiEvent; HEAP32[((uiEvent)>>2)] = 0; // always zero for resize and scroll HEAP32[(((uiEvent)+(4))>>2)] = b.clientWidth; HEAP32[(((uiEvent)+(8))>>2)] = b.clientHeight; HEAP32[(((uiEvent)+(12))>>2)] = innerWidth; HEAP32[(((uiEvent)+(16))>>2)] = innerHeight; HEAP32[(((uiEvent)+(20))>>2)] = outerWidth; HEAP32[(((uiEvent)+(24))>>2)] = outerHeight; HEAP32[(((uiEvent)+(28))>>2)] = pageXOffset | 0; // scroll offsets are float HEAP32[(((uiEvent)+(32))>>2)] = pageYOffset | 0; if (getWasmTableEntry(callbackfunc)(eventTypeId, uiEvent, userData)) e.preventDefault(); }; var eventHandler = { target, eventTypeString, callbackfunc, handlerFunc: uiEventHandlerFunc, useCapture }; return JSEvents.registerOrRemoveHandler(eventHandler); }; var _emscripten_set_resize_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => registerUiEventCallback(target, userData, useCapture, callbackfunc, 10, "resize", targetThread); class HandleAllocator { allocated = [undefined]; freelist = []; get(id) { assert(this.allocated[id] !== undefined, `invalid handle: ${id}`); return this.allocated[id]; } has(id) { return this.allocated[id] !== undefined; } allocate(handle) { var id = this.freelist.pop() || this.allocated.length; this.allocated[id] = handle; return id; } free(id) { assert(this.allocated[id] !== undefined); // Set the slot to `undefined` rather than using `delete` here since // apparently arrays with holes in them can be less efficient. this.allocated[id] = undefined; this.freelist.push(id); } } var Fetch = { openDatabase(dbname, dbversion, onsuccess, onerror) { try { var openRequest = indexedDB.open(dbname, dbversion); } catch (e) { return onerror(e); } openRequest.onupgradeneeded = (event) => { var db = /** @type {IDBDatabase} */ (event.target.result); if (db.objectStoreNames.contains('FILES')) { db.deleteObjectStore('FILES'); } db.createObjectStore('FILES'); }; openRequest.onsuccess = (event) => onsuccess(event.target.result); openRequest.onerror = onerror; }, init() { Fetch.xhrs = new HandleAllocator(); var onsuccess = (db) => { Fetch.dbInstance = db; removeRunDependency('library_fetch_init'); }; var onerror = () => { Fetch.dbInstance = false; removeRunDependency('library_fetch_init'); }; addRunDependency('library_fetch_init'); Fetch.openDatabase('emscripten_filesystem', 1, onsuccess, onerror); }, }; function fetchXHR(fetch, onsuccess, onerror, onprogress, onreadystatechange) { var url = HEAPU32[(((fetch)+(8))>>2)]; if (!url) { onerror(fetch, 0, 'no url specified!'); return; } var url_ = UTF8ToString(url); var fetch_attr = fetch + 108; var requestMethod = UTF8ToString(fetch_attr + 0); requestMethod ||= 'GET'; var timeoutMsecs = HEAPU32[(((fetch_attr)+(56))>>2)]; var userName = HEAPU32[(((fetch_attr)+(68))>>2)]; var password = HEAPU32[(((fetch_attr)+(72))>>2)]; var requestHeaders = HEAPU32[(((fetch_attr)+(76))>>2)]; var overriddenMimeType = HEAPU32[(((fetch_attr)+(80))>>2)]; var dataPtr = HEAPU32[(((fetch_attr)+(84))>>2)]; var dataLength = HEAPU32[(((fetch_attr)+(88))>>2)]; var fetchAttributes = HEAPU32[(((fetch_attr)+(52))>>2)]; var fetchAttrLoadToMemory = !!(fetchAttributes & 1); var fetchAttrStreamData = !!(fetchAttributes & 2); var fetchAttrSynchronous = !!(fetchAttributes & 64); var userNameStr = userName ? UTF8ToString(userName) : undefined; var passwordStr = password ? UTF8ToString(password) : undefined; var xhr = new XMLHttpRequest(); xhr.withCredentials = !!HEAPU8[(fetch_attr)+(60)];; xhr.open(requestMethod, url_, !fetchAttrSynchronous, userNameStr, passwordStr); if (!fetchAttrSynchronous) xhr.timeout = timeoutMsecs; // XHR timeout field is only accessible in async XHRs, and must be set after .open() but before .send(). xhr.url_ = url_; // Save the url for debugging purposes (and for comparing to the responseURL that server side advertised) assert(!fetchAttrStreamData, 'streaming uses moz-chunked-arraybuffer which is no longer supported; TODO: rewrite using fetch()'); xhr.responseType = 'arraybuffer'; if (overriddenMimeType) { var overriddenMimeTypeStr = UTF8ToString(overriddenMimeType); xhr.overrideMimeType(overriddenMimeTypeStr); } if (requestHeaders) { for (;;) { var key = HEAPU32[((requestHeaders)>>2)]; if (!key) break; var value = HEAPU32[(((requestHeaders)+(4))>>2)]; if (!value) break; requestHeaders += 8; var keyStr = UTF8ToString(key); var valueStr = UTF8ToString(value); xhr.setRequestHeader(keyStr, valueStr); } } var id = Fetch.xhrs.allocate(xhr); HEAPU32[((fetch)>>2)] = id; var data = (dataPtr && dataLength) ? HEAPU8.slice(dataPtr, dataPtr + dataLength) : null; // TODO: Support specifying custom headers to the request. // Share the code to save the response, as we need to do so both on success // and on error (despite an error, there may be a response, like a 404 page). // This receives a condition, which determines whether to save the xhr's // response, or just 0. function saveResponseAndStatus() { var ptr = 0; var ptrLen = 0; if (xhr.response && fetchAttrLoadToMemory && HEAPU32[(((fetch)+(12))>>2)] === 0) { ptrLen = xhr.response.byteLength; } if (ptrLen > 0) { // The data pointer malloc()ed here has the same lifetime as the emscripten_fetch_t structure itself has, and is // freed when emscripten_fetch_close() is called. ptr = _malloc(ptrLen); HEAPU8.set(new Uint8Array(/** @type{Array} */(xhr.response)), ptr); } HEAPU32[(((fetch)+(12))>>2)] = ptr writeI53ToI64(fetch + 16, ptrLen); writeI53ToI64(fetch + 24, 0); var len = xhr.response ? xhr.response.byteLength : 0; if (len) { // If the final XHR.onload handler receives the bytedata to compute total length, report that, // otherwise don't write anything out here, which will retain the latest byte size reported in // the most recent XHR.onprogress handler. writeI53ToI64(fetch + 32, len); } HEAP16[(((fetch)+(40))>>1)] = xhr.readyState HEAP16[(((fetch)+(42))>>1)] = xhr.status if (xhr.statusText) stringToUTF8(xhr.statusText, fetch + 44, 64); } xhr.onload = (e) => { // check if xhr was aborted by user and don't try to call back if (!Fetch.xhrs.has(id)) { return; } saveResponseAndStatus(); if (xhr.status >= 200 && xhr.status < 300) { onsuccess?.(fetch, xhr, e); } else { onerror?.(fetch, xhr, e); } }; xhr.onerror = (e) => { // check if xhr was aborted by user and don't try to call back if (!Fetch.xhrs.has(id)) { return; } saveResponseAndStatus(); onerror?.(fetch, xhr, e); }; xhr.ontimeout = (e) => { // check if xhr was aborted by user and don't try to call back if (!Fetch.xhrs.has(id)) { return; } onerror?.(fetch, xhr, e); }; xhr.onprogress = (e) => { // check if xhr was aborted by user and don't try to call back if (!Fetch.xhrs.has(id)) { return; } var ptrLen = (fetchAttrLoadToMemory && fetchAttrStreamData && xhr.response) ? xhr.response.byteLength : 0; var ptr = 0; if (ptrLen > 0 && fetchAttrLoadToMemory && fetchAttrStreamData) { assert(onprogress, 'When doing a streaming fetch, you should have an onprogress handler registered to receive the chunks!'); // Allocate byte data in Emscripten heap for the streamed memory block (freed immediately after onprogress call) ptr = _malloc(ptrLen); HEAPU8.set(new Uint8Array(/** @type{Array} */(xhr.response)), ptr); } HEAPU32[(((fetch)+(12))>>2)] = ptr writeI53ToI64(fetch + 16, ptrLen); writeI53ToI64(fetch + 24, e.loaded - ptrLen); writeI53ToI64(fetch + 32, e.total); HEAP16[(((fetch)+(40))>>1)] = xhr.readyState // If loading files from a source that does not give HTTP status code, assume success if we get data bytes if (xhr.readyState >= 3 && xhr.status === 0 && e.loaded > 0) xhr.status = 200; HEAP16[(((fetch)+(42))>>1)] = xhr.status if (xhr.statusText) stringToUTF8(xhr.statusText, fetch + 44, 64); onprogress?.(fetch, xhr, e); if (ptr) { _free(ptr); } }; xhr.onreadystatechange = (e) => { // check if xhr was aborted by user and don't try to call back if (!Fetch.xhrs.has(id)) { return; } HEAP16[(((fetch)+(40))>>1)] = xhr.readyState if (xhr.readyState >= 2) { HEAP16[(((fetch)+(42))>>1)] = xhr.status } onreadystatechange?.(fetch, xhr, e); }; try { xhr.send(data); } catch(e) { onerror?.(fetch, xhr, e); } } 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 runtimeKeepaliveCounter = 0; var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0; var _proc_exit = (code) => { EXITSTATUS = code; if (!keepRuntimeAlive()) { Module['onExit']?.(code); ABORT = true; } quit_(code, new ExitStatus(code)); }; /** @suppress {duplicate } */ /** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => { EXITSTATUS = status; checkUnflushedContent(); // 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 maybeExit = () => { if (!keepRuntimeAlive()) { try { _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 readI53FromI64 = (ptr) => { return HEAPU32[((ptr)>>2)] + HEAP32[(((ptr)+(4))>>2)] * 4294967296; }; var readI53FromU64 = (ptr) => { return HEAPU32[((ptr)>>2)] + HEAPU32[(((ptr)+(4))>>2)] * 4294967296; }; var writeI53ToI64 = (ptr, num) => { HEAPU32[((ptr)>>2)] = num; var lower = HEAPU32[((ptr)>>2)]; HEAPU32[(((ptr)+(4))>>2)] = (num - lower)/4294967296; var deserialized = (num >= 0) ? readI53FromU64(ptr) : readI53FromI64(ptr); var offset = ((ptr)>>2); if (deserialized != num) warnOnce(`writeI53ToI64() out of range: serialized JS Number ${num} to Wasm heap as bytes lo=${ptrToString(HEAPU32[offset])}, hi=${ptrToString(HEAPU32[offset+1])}, which deserializes back to ${deserialized} instead!`); }; function fetchCacheData(/** @type {IDBDatabase} */ db, fetch, data, onsuccess, onerror) { if (!db) { onerror(fetch, 0, 'IndexedDB not available!'); return; } var fetch_attr = fetch + 108; var destinationPath = HEAPU32[(((fetch_attr)+(64))>>2)]; destinationPath ||= HEAPU32[(((fetch)+(8))>>2)]; var destinationPathStr = UTF8ToString(destinationPath); try { var transaction = db.transaction(['FILES'], 'readwrite'); var packages = transaction.objectStore('FILES'); var putRequest = packages.put(data, destinationPathStr); putRequest.onsuccess = (event) => { HEAP16[(((fetch)+(40))>>1)] = 4 // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(42))>>1)] = 200 // Mimic XHR HTTP status code 200 "OK" stringToUTF8("OK", fetch + 44, 64); onsuccess(fetch, 0, destinationPathStr); }; putRequest.onerror = (error) => { // Most likely we got an error if IndexedDB is unwilling to store any more data for this page. // TODO: Can we identify and break down different IndexedDB-provided errors and convert those // to more HTTP status codes for more information? HEAP16[(((fetch)+(40))>>1)] = 4 // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(42))>>1)] = 413 // Mimic XHR HTTP status code 413 "Payload Too Large" stringToUTF8("Payload Too Large", fetch + 44, 64); onerror(fetch, 0, error); }; } catch(e) { onerror(fetch, 0, e); } } function fetchLoadCachedData(db, fetch, onsuccess, onerror) { if (!db) { onerror(fetch, 0, 'IndexedDB not available!'); return; } var fetch_attr = fetch + 108; var path = HEAPU32[(((fetch_attr)+(64))>>2)]; path ||= HEAPU32[(((fetch)+(8))>>2)]; var pathStr = UTF8ToString(path); try { var transaction = db.transaction(['FILES'], 'readonly'); var packages = transaction.objectStore('FILES'); var getRequest = packages.get(pathStr); getRequest.onsuccess = (event) => { if (event.target.result) { var value = event.target.result; var len = value.byteLength || value.length; // The data pointer malloc()ed here has the same lifetime as the emscripten_fetch_t structure itself has, and is // freed when emscripten_fetch_close() is called. var ptr = _malloc(len); HEAPU8.set(new Uint8Array(value), ptr); HEAPU32[(((fetch)+(12))>>2)] = ptr; writeI53ToI64(fetch + 16, len); writeI53ToI64(fetch + 24, 0); writeI53ToI64(fetch + 32, len); HEAP16[(((fetch)+(40))>>1)] = 4 // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(42))>>1)] = 200 // Mimic XHR HTTP status code 200 "OK" stringToUTF8("OK", fetch + 44, 64); onsuccess(fetch, 0, value); } else { // Succeeded to load, but the load came back with the value of undefined, treat that as an error since we never store undefined in db. HEAP16[(((fetch)+(40))>>1)] = 4 // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(42))>>1)] = 404 // Mimic XHR HTTP status code 404 "Not Found" stringToUTF8("Not Found", fetch + 44, 64); onerror(fetch, 0, 'no data'); } }; getRequest.onerror = (error) => { HEAP16[(((fetch)+(40))>>1)] = 4 // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(42))>>1)] = 404 // Mimic XHR HTTP status code 404 "Not Found" stringToUTF8("Not Found", fetch + 44, 64); onerror(fetch, 0, error); }; } catch(e) { onerror(fetch, 0, e); } } function fetchDeleteCachedData(db, fetch, onsuccess, onerror) { if (!db) { onerror(fetch, 0, 'IndexedDB not available!'); return; } var fetch_attr = fetch + 108; var path = HEAPU32[(((fetch_attr)+(64))>>2)]; path ||= HEAPU32[(((fetch)+(8))>>2)]; var pathStr = UTF8ToString(path); try { var transaction = db.transaction(['FILES'], 'readwrite'); var packages = transaction.objectStore('FILES'); var request = packages.delete(pathStr); request.onsuccess = (event) => { var value = event.target.result; HEAPU32[(((fetch)+(12))>>2)] = 0; writeI53ToI64(fetch + 16, 0); writeI53ToI64(fetch + 24, 0); writeI53ToI64(fetch + 32, 0); // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(40))>>1)] = 4; // Mimic XHR HTTP status code 200 "OK" HEAP16[(((fetch)+(42))>>1)] = 200; stringToUTF8("OK", fetch + 44, 64); onsuccess(fetch, 0, value); }; request.onerror = (error) => { HEAP16[(((fetch)+(40))>>1)] = 4 // Mimic XHR readyState 4 === 'DONE: The operation is complete' HEAP16[(((fetch)+(42))>>1)] = 404 // Mimic XHR HTTP status code 404 "Not Found" stringToUTF8("Not Found", fetch + 44, 64); onerror(fetch, 0, error); }; } catch(e) { onerror(fetch, 0, e); } } function _emscripten_start_fetch(fetch, successcb, errorcb, progresscb, readystatechangecb) { // Avoid shutting down the runtime since we want to wait for the async // response. var fetch_attr = fetch + 108; var onsuccess = HEAPU32[(((fetch_attr)+(36))>>2)]; var onerror = HEAPU32[(((fetch_attr)+(40))>>2)]; var onprogress = HEAPU32[(((fetch_attr)+(44))>>2)]; var onreadystatechange = HEAPU32[(((fetch_attr)+(48))>>2)]; var fetchAttributes = HEAPU32[(((fetch_attr)+(52))>>2)]; var fetchAttrSynchronous = !!(fetchAttributes & 64); function doCallback(f) { if (fetchAttrSynchronous) { f(); } else { callUserCallback(f); } } var reportSuccess = (fetch, xhr, e) => { doCallback(() => { if (onsuccess) getWasmTableEntry(onsuccess)(fetch); else successcb?.(fetch); }); }; var reportProgress = (fetch, xhr, e) => { doCallback(() => { if (onprogress) getWasmTableEntry(onprogress)(fetch); else progresscb?.(fetch); }); }; var reportError = (fetch, xhr, e) => { doCallback(() => { if (onerror) getWasmTableEntry(onerror)(fetch); else errorcb?.(fetch); }); }; var reportReadyStateChange = (fetch, xhr, e) => { doCallback(() => { if (onreadystatechange) getWasmTableEntry(onreadystatechange)(fetch); else readystatechangecb?.(fetch); }); }; var performUncachedXhr = (fetch, xhr, e) => { fetchXHR(fetch, reportSuccess, reportError, reportProgress, reportReadyStateChange); }; var cacheResultAndReportSuccess = (fetch, xhr, e) => { var storeSuccess = (fetch, xhr, e) => { doCallback(() => { if (onsuccess) getWasmTableEntry(onsuccess)(fetch); else successcb?.(fetch); }); }; var storeError = (fetch, xhr, e) => { doCallback(() => { if (onsuccess) getWasmTableEntry(onsuccess)(fetch); else successcb?.(fetch); }); }; fetchCacheData(Fetch.dbInstance, fetch, xhr.response, storeSuccess, storeError); }; var performCachedXhr = (fetch, xhr, e) => { fetchXHR(fetch, cacheResultAndReportSuccess, reportError, reportProgress, reportReadyStateChange); }; var requestMethod = UTF8ToString(fetch_attr + 0); var fetchAttrReplace = !!(fetchAttributes & 16); var fetchAttrPersistFile = !!(fetchAttributes & 4); var fetchAttrNoDownload = !!(fetchAttributes & 32); if (requestMethod === 'EM_IDB_STORE') { // TODO(?): Here we perform a clone of the data, because storing shared typed arrays to IndexedDB does not seem to be allowed. var ptr = HEAPU32[(((fetch_attr)+(84))>>2)]; var size = HEAPU32[(((fetch_attr)+(88))>>2)]; fetchCacheData(Fetch.dbInstance, fetch, HEAPU8.slice(ptr, ptr + size), reportSuccess, reportError); } else if (requestMethod === 'EM_IDB_DELETE') { fetchDeleteCachedData(Fetch.dbInstance, fetch, reportSuccess, reportError); } else if (!fetchAttrReplace) { fetchLoadCachedData(Fetch.dbInstance, fetch, reportSuccess, fetchAttrNoDownload ? reportError : (fetchAttrPersistFile ? performCachedXhr : performUncachedXhr)); } else if (!fetchAttrNoDownload) { fetchXHR(fetch, fetchAttrPersistFile ? cacheResultAndReportSuccess : reportSuccess, reportError, reportProgress, reportReadyStateChange); } else { return 0; // todo: free } return fetch; } var GLctx; var webgl_enable_ANGLE_instanced_arrays = (ctx) => { // Extension available in WebGL 1 from Firefox 26 and Google Chrome 30 onwards. Core feature in WebGL 2. var ext = ctx.getExtension('ANGLE_instanced_arrays'); // Because this extension is a core function in WebGL 2, assign the extension entry points in place of // where the core functions will reside in WebGL 2. This way the calling code can call these without // having to dynamically branch depending if running against WebGL 1 or WebGL 2. if (ext) { ctx['vertexAttribDivisor'] = (index, divisor) => ext['vertexAttribDivisorANGLE'](index, divisor); ctx['drawArraysInstanced'] = (mode, first, count, primcount) => ext['drawArraysInstancedANGLE'](mode, first, count, primcount); ctx['drawElementsInstanced'] = (mode, count, type, indices, primcount) => ext['drawElementsInstancedANGLE'](mode, count, type, indices, primcount); return 1; } }; var webgl_enable_OES_vertex_array_object = (ctx) => { // Extension available in WebGL 1 from Firefox 25 and WebKit 536.28/desktop Safari 6.0.3 onwards. Core feature in WebGL 2. var ext = ctx.getExtension('OES_vertex_array_object'); if (ext) { ctx['createVertexArray'] = () => ext['createVertexArrayOES'](); ctx['deleteVertexArray'] = (vao) => ext['deleteVertexArrayOES'](vao); ctx['bindVertexArray'] = (vao) => ext['bindVertexArrayOES'](vao); ctx['isVertexArray'] = (vao) => ext['isVertexArrayOES'](vao); return 1; } }; var webgl_enable_WEBGL_draw_buffers = (ctx) => { // Extension available in WebGL 1 from Firefox 28 onwards. Core feature in WebGL 2. var ext = ctx.getExtension('WEBGL_draw_buffers'); if (ext) { ctx['drawBuffers'] = (n, bufs) => ext['drawBuffersWEBGL'](n, bufs); return 1; } }; var webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance = (ctx) => // Closure is expected to be allowed to minify the '.dibvbi' property, so not accessing it quoted. !!(ctx.dibvbi = ctx.getExtension('WEBGL_draw_instanced_base_vertex_base_instance')); var webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance = (ctx) => { // Closure is expected to be allowed to minify the '.mdibvbi' property, so not accessing it quoted. return !!(ctx.mdibvbi = ctx.getExtension('WEBGL_multi_draw_instanced_base_vertex_base_instance')); }; var webgl_enable_EXT_polygon_offset_clamp = (ctx) => !!(ctx.extPolygonOffsetClamp = ctx.getExtension('EXT_polygon_offset_clamp')); var webgl_enable_EXT_clip_control = (ctx) => !!(ctx.extClipControl = ctx.getExtension('EXT_clip_control')); var webgl_enable_WEBGL_polygon_mode = (ctx) => !!(ctx.webglPolygonMode = ctx.getExtension('WEBGL_polygon_mode')); var webgl_enable_WEBGL_multi_draw = (ctx) => // Closure is expected to be allowed to minify the '.multiDrawWebgl' property, so not accessing it quoted. !!(ctx.multiDrawWebgl = ctx.getExtension('WEBGL_multi_draw')); var getEmscriptenSupportedExtensions = (ctx) => { // Restrict the list of advertised extensions to those that we actually // support. var supportedExtensions = [ // WebGL 1 extensions 'ANGLE_instanced_arrays', 'EXT_blend_minmax', 'EXT_disjoint_timer_query', 'EXT_frag_depth', 'EXT_shader_texture_lod', 'EXT_sRGB', 'OES_element_index_uint', 'OES_fbo_render_mipmap', 'OES_standard_derivatives', 'OES_texture_float', 'OES_texture_half_float', 'OES_texture_half_float_linear', 'OES_vertex_array_object', 'WEBGL_color_buffer_float', 'WEBGL_depth_texture', 'WEBGL_draw_buffers', // WebGL 2 extensions 'EXT_color_buffer_float', 'EXT_conservative_depth', 'EXT_disjoint_timer_query_webgl2', 'EXT_texture_norm16', 'NV_shader_noperspective_interpolation', 'WEBGL_clip_cull_distance', // WebGL 1 and WebGL 2 extensions 'EXT_clip_control', 'EXT_color_buffer_half_float', 'EXT_depth_clamp', 'EXT_float_blend', 'EXT_polygon_offset_clamp', 'EXT_texture_compression_bptc', 'EXT_texture_compression_rgtc', 'EXT_texture_filter_anisotropic', 'KHR_parallel_shader_compile', 'OES_texture_float_linear', 'WEBGL_blend_func_extended', 'WEBGL_compressed_texture_astc', 'WEBGL_compressed_texture_etc', 'WEBGL_compressed_texture_etc1', 'WEBGL_compressed_texture_s3tc', 'WEBGL_compressed_texture_s3tc_srgb', 'WEBGL_debug_renderer_info', 'WEBGL_debug_shaders', 'WEBGL_lose_context', 'WEBGL_multi_draw', 'WEBGL_polygon_mode' ]; // .getSupportedExtensions() can return null if context is lost, so coerce to empty array. return (ctx.getSupportedExtensions() || []).filter(ext => supportedExtensions.includes(ext)); }; var registerPreMainLoop = (f) => { // Does nothing unless $MainLoop is included/used. typeof MainLoop != 'undefined' && MainLoop.preMainLoop.push(f); }; var GL = { counter:1, buffers:[], mappedBuffers:{ }, programs:[], framebuffers:[], renderbuffers:[], textures:[], shaders:[], vaos:[], contexts:[], offscreenCanvases:{ }, queries:[], samplers:[], transformFeedbacks:[], syncs:[], byteSizeByTypeRoot:5120, byteSizeByType:[1,1,2,2,4,4,4,2,3,4,8], stringCache:{ }, stringiCache:{ }, unpackAlignment:4, unpackRowLength:0, recordError:(errorCode) => { if (!GL.lastError) { GL.lastError = errorCode; } }, getNewId:(table) => { var ret = GL.counter++; for (var i = table.length; i < ret; i++) { table[i] = null; } // Skip over any non-null elements that might have been created by // glBindBuffer. while (table[ret]) { ret = GL.counter++; } return ret; }, genObject:(n, buffers, createFunction, objectTable ) => { for (var i = 0; i < n; i++) { var buffer = GLctx[createFunction](); var id = buffer && GL.getNewId(objectTable); if (buffer) { buffer.name = id; objectTable[id] = buffer; } else { GL.recordError(0x502 /* GL_INVALID_OPERATION */); } HEAP32[(((buffers)+(i*4))>>2)] = id; } }, MAX_TEMP_BUFFER_SIZE:2097152, numTempVertexBuffersPerSize:64, log2ceilLookup:(i) => 32 - Math.clz32(i === 0 ? 0 : i - 1), generateTempBuffers:(quads, context) => { var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE); context.tempVertexBufferCounters1 = []; context.tempVertexBufferCounters2 = []; context.tempVertexBufferCounters1.length = context.tempVertexBufferCounters2.length = largestIndex+1; context.tempVertexBuffers1 = []; context.tempVertexBuffers2 = []; context.tempVertexBuffers1.length = context.tempVertexBuffers2.length = largestIndex+1; context.tempIndexBuffers = []; context.tempIndexBuffers.length = largestIndex+1; for (var i = 0; i <= largestIndex; ++i) { context.tempIndexBuffers[i] = null; // Created on-demand context.tempVertexBufferCounters1[i] = context.tempVertexBufferCounters2[i] = 0; var ringbufferLength = GL.numTempVertexBuffersPerSize; context.tempVertexBuffers1[i] = []; context.tempVertexBuffers2[i] = []; var ringbuffer1 = context.tempVertexBuffers1[i]; var ringbuffer2 = context.tempVertexBuffers2[i]; ringbuffer1.length = ringbuffer2.length = ringbufferLength; for (var j = 0; j < ringbufferLength; ++j) { ringbuffer1[j] = ringbuffer2[j] = null; // Created on-demand } } if (quads) { // GL_QUAD indexes can be precalculated context.tempQuadIndexBuffer = GLctx.createBuffer(); context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, context.tempQuadIndexBuffer); var numIndexes = GL.MAX_TEMP_BUFFER_SIZE >> 1; var quadIndexes = new Uint16Array(numIndexes); var i = 0, v = 0; while (1) { quadIndexes[i++] = v; if (i >= numIndexes) break; quadIndexes[i++] = v+1; if (i >= numIndexes) break; quadIndexes[i++] = v+2; if (i >= numIndexes) break; quadIndexes[i++] = v; if (i >= numIndexes) break; quadIndexes[i++] = v+2; if (i >= numIndexes) break; quadIndexes[i++] = v+3; if (i >= numIndexes) break; v += 4; } context.GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, quadIndexes, 0x88E4 /*GL_STATIC_DRAW*/); context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, null); } }, getTempVertexBuffer:(sizeBytes) => { var idx = GL.log2ceilLookup(sizeBytes); var ringbuffer = GL.currentContext.tempVertexBuffers1[idx]; var nextFreeBufferIndex = GL.currentContext.tempVertexBufferCounters1[idx]; GL.currentContext.tempVertexBufferCounters1[idx] = (GL.currentContext.tempVertexBufferCounters1[idx]+1) & (GL.numTempVertexBuffersPerSize-1); var vbo = ringbuffer[nextFreeBufferIndex]; if (vbo) { return vbo; } var prevVBO = GLctx.getParameter(0x8894 /*GL_ARRAY_BUFFER_BINDING*/); ringbuffer[nextFreeBufferIndex] = GLctx.createBuffer(); GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, ringbuffer[nextFreeBufferIndex]); GLctx.bufferData(0x8892 /*GL_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/); GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, prevVBO); return ringbuffer[nextFreeBufferIndex]; }, getTempIndexBuffer:(sizeBytes) => { var idx = GL.log2ceilLookup(sizeBytes); var ibo = GL.currentContext.tempIndexBuffers[idx]; if (ibo) { return ibo; } var prevIBO = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/); GL.currentContext.tempIndexBuffers[idx] = GLctx.createBuffer(); GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, GL.currentContext.tempIndexBuffers[idx]); GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/); GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, prevIBO); return GL.currentContext.tempIndexBuffers[idx]; }, newRenderingFrameStarted:() => { if (!GL.currentContext) { return; } var vb = GL.currentContext.tempVertexBuffers1; GL.currentContext.tempVertexBuffers1 = GL.currentContext.tempVertexBuffers2; GL.currentContext.tempVertexBuffers2 = vb; vb = GL.currentContext.tempVertexBufferCounters1; GL.currentContext.tempVertexBufferCounters1 = GL.currentContext.tempVertexBufferCounters2; GL.currentContext.tempVertexBufferCounters2 = vb; var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE); for (var i = 0; i <= largestIndex; ++i) { GL.currentContext.tempVertexBufferCounters1[i] = 0; } }, getSource:(shader, count, string, length) => { var source = ''; for (var i = 0; i < count; ++i) { var len = length ? HEAPU32[(((length)+(i*4))>>2)] : undefined; source += UTF8ToString(HEAPU32[(((string)+(i*4))>>2)], len); } return source; }, calcBufLength:(size, type, stride, count) => { if (stride > 0) { return count * stride; // XXXvlad this is not exactly correct I don't think } var typeSize = GL.byteSizeByType[type - GL.byteSizeByTypeRoot]; return size * typeSize * count; }, usedTempBuffers:[], preDrawHandleClientVertexAttribBindings:(count) => { GL.resetBufferBinding = false; // TODO: initial pass to detect ranges we need to upload, might not need // an upload per attrib for (var i = 0; i < GL.currentContext.maxVertexAttribs; ++i) { var cb = GL.currentContext.clientBuffers[i]; if (!cb.clientside || !cb.enabled) continue; GL.resetBufferBinding = true; var size = GL.calcBufLength(cb.size, cb.type, cb.stride, count); var buf = GL.getTempVertexBuffer(size); GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, buf); GLctx.bufferSubData(0x8892 /*GL_ARRAY_BUFFER*/, 0, HEAPU8.subarray(cb.ptr, cb.ptr + size)); cb.vertexAttribPointerAdaptor.call(GLctx, i, cb.size, cb.type, cb.normalized, cb.stride, 0); } }, postDrawHandleClientVertexAttribBindings:() => { if (GL.resetBufferBinding) { GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, GL.buffers[GLctx.currentArrayBufferBinding]); } }, createContext:(/** @type {HTMLCanvasElement} */ canvas, webGLContextAttributes) => { // BUG: Workaround Safari WebGL issue: After successfully acquiring WebGL // context on a canvas, calling .getContext() will always return that // context independent of which 'webgl' or 'webgl2' // context version was passed. See: // https://bugs.webkit.org/show_bug.cgi?id=222758 // and: // https://github.com/emscripten-core/emscripten/issues/13295. // TODO: Once the bug is fixed and shipped in Safari, adjust the Safari // version field in above check. if (!canvas.getContextSafariWebGL2Fixed) { canvas.getContextSafariWebGL2Fixed = canvas.getContext; /** @type {function(this:HTMLCanvasElement, string, (Object|null)=): (Object|null)} */ function fixedGetContext(ver, attrs) { var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs); return ((ver == 'webgl') == (gl instanceof WebGLRenderingContext)) ? gl : null; } canvas.getContext = fixedGetContext; } var ctx = (webGLContextAttributes.majorVersion > 1) ? canvas.getContext("webgl2", webGLContextAttributes) : (canvas.getContext("webgl", webGLContextAttributes) // https://caniuse.com/#feat=webgl ); if (!ctx) return 0; var handle = GL.registerContext(ctx, webGLContextAttributes); return handle; }, registerContext:(ctx, webGLContextAttributes) => { // without pthreads a context is just an integer ID var handle = GL.getNewId(GL.contexts); var context = { handle, attributes: webGLContextAttributes, version: webGLContextAttributes.majorVersion, GLctx: ctx }; // Store the created context object so that we can access the context // given a canvas without having to pass the parameters again. if (ctx.canvas) ctx.canvas.GLctxObject = context; GL.contexts[handle] = context; if (typeof webGLContextAttributes.enableExtensionsByDefault == 'undefined' || webGLContextAttributes.enableExtensionsByDefault) { GL.initExtensions(context); } context.maxVertexAttribs = context.GLctx.getParameter(0x8869 /*GL_MAX_VERTEX_ATTRIBS*/); context.clientBuffers = []; for (var i = 0; i < context.maxVertexAttribs; i++) { context.clientBuffers[i] = { enabled: false, clientside: false, size: 0, type: 0, normalized: 0, stride: 0, ptr: 0, vertexAttribPointerAdaptor: null, }; } GL.generateTempBuffers(false, context); return handle; }, makeContextCurrent:(contextHandle) => { // Active Emscripten GL layer context object. GL.currentContext = GL.contexts[contextHandle]; // Active WebGL context object. Module['ctx'] = GLctx = GL.currentContext?.GLctx; return !(contextHandle && !GLctx); }, getContext:(contextHandle) => { return GL.contexts[contextHandle]; }, deleteContext:(contextHandle) => { if (GL.currentContext === GL.contexts[contextHandle]) { GL.currentContext = null; } if (typeof JSEvents == 'object') { // Release all JS event handlers on the DOM element that the GL context is // associated with since the context is now deleted. JSEvents.removeAllHandlersOnTarget(GL.contexts[contextHandle].GLctx.canvas); } // Make sure the canvas object no longer refers to the context object so // there are no GC surprises. if (GL.contexts[contextHandle]?.GLctx.canvas) { GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined; } GL.contexts[contextHandle] = null; }, initExtensions:(context) => { // If this function is called without a specific context object, init the // extensions of the currently active context. context ||= GL.currentContext; if (context.initExtensionsDone) return; context.initExtensionsDone = true; var GLctx = context.GLctx; // Detect the presence of a few extensions manually, ction GL interop // layer itself will need to know if they exist. // Extensions that are available in both WebGL 1 and WebGL 2 webgl_enable_WEBGL_multi_draw(GLctx); webgl_enable_EXT_polygon_offset_clamp(GLctx); webgl_enable_EXT_clip_control(GLctx); webgl_enable_WEBGL_polygon_mode(GLctx); // Extensions that are only available in WebGL 1 (the calls will be no-ops // if called on a WebGL 2 context active) webgl_enable_ANGLE_instanced_arrays(GLctx); webgl_enable_OES_vertex_array_object(GLctx); webgl_enable_WEBGL_draw_buffers(GLctx); // Extensions that are available from WebGL >= 2 (no-op if called on a WebGL 1 context active) webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx); webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx); // On WebGL 2, EXT_disjoint_timer_query is replaced with an alternative // that's based on core APIs, and exposes only the queryCounterEXT() // entrypoint. if (context.version >= 2) { GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query_webgl2"); } // However, Firefox exposes the WebGL 1 version on WebGL 2 as well and // thus we look for the WebGL 1 version again if the WebGL 2 version // isn't present. https://bugzilla.mozilla.org/show_bug.cgi?id=1328882 if (context.version < 2 || !GLctx.disjointTimerQueryExt) { GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query"); } getEmscriptenSupportedExtensions(GLctx).forEach((ext) => { // WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders // are not enabled by default. if (!ext.includes('lose_context') && !ext.includes('debug')) { // Call .getExtension() to enable that extension permanently. GLctx.getExtension(ext); } }); }, }; var webglPowerPreferences = ["default","low-power","high-performance"]; /** @suppress {duplicate } */ var _emscripten_webgl_do_create_context = (target, attributes) => { assert(attributes); var attr32 = ((attributes)>>2); var powerPreference = HEAP32[attr32 + (8>>2)]; var contextAttributes = { 'alpha': !!HEAP8[attributes + 0], 'depth': !!HEAP8[attributes + 1], 'stencil': !!HEAP8[attributes + 2], 'antialias': !!HEAP8[attributes + 3], 'premultipliedAlpha': !!HEAP8[attributes + 4], 'preserveDrawingBuffer': !!HEAP8[attributes + 5], 'powerPreference': webglPowerPreferences[powerPreference], 'failIfMajorPerformanceCaveat': !!HEAP8[attributes + 12], // The following are not predefined WebGL context attributes in the WebGL specification, so the property names can be minified by Closure. majorVersion: HEAP32[attr32 + (16>>2)], minorVersion: HEAP32[attr32 + (20>>2)], enableExtensionsByDefault: HEAP8[attributes + 24], explicitSwapControl: HEAP8[attributes + 25], proxyContextToMainThread: HEAP32[attr32 + (28>>2)], renderViaOffscreenBackBuffer: HEAP8[attributes + 32] }; // TODO: Make these into hard errors at some point in the future if (contextAttributes.majorVersion !== 1 && contextAttributes.majorVersion !== 2) { err(`Invalid WebGL version requested: ${contextAttributes.majorVersion}`); } var canvas = findCanvasEventTarget(target); if (!canvas) { return 0; } if (contextAttributes.explicitSwapControl) { return 0; } var contextHandle = GL.createContext(canvas, contextAttributes); return contextHandle; }; var _emscripten_webgl_create_context = _emscripten_webgl_do_create_context; var _emscripten_webgl_make_context_current = (contextHandle) => { var success = GL.makeContextCurrent(contextHandle); return success ? 0 : -5; }; var SYSCALLS = { varargs:undefined, getStr(ptr) { var ret = UTF8ToString(ptr); return ret; }, }; var _fd_close = (fd) => { abort('fd_close called without SYSCALLS_REQUIRE_FILESYSTEM'); }; function _fd_seek(fd, offset, whence, newOffset) { offset = bigintToI53Checked(offset); return 70; ; } var printCharBuffers = [null,[],[]]; var printChar = (stream, curr) => { var buffer = printCharBuffers[stream]; assert(buffer); if (curr === 0 || curr === 10) { (stream === 1 ? out : err)(UTF8ArrayToString(buffer)); 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 _fd_write = (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 _glAttachShader = (program, shader) => { GLctx.attachShader(GL.programs[program], GL.shaders[shader]); }; var _glBindBuffer = (target, buffer) => { // Calling glBindBuffer with an unknown buffer will implicitly create a // new one. Here we bypass `GL.counter` and directly using the ID passed // in. if (buffer && !GL.buffers[buffer]) { var b = GLctx.createBuffer(); b.name = buffer; GL.buffers[buffer] = b; } if (target == 0x8892 /*GL_ARRAY_BUFFER*/) { GLctx.currentArrayBufferBinding = buffer; } else if (target == 0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/) { GLctx.currentElementArrayBufferBinding = buffer; } if (target == 0x88EB /*GL_PIXEL_PACK_BUFFER*/) { // In WebGL 2 glReadPixels entry point, we need to use a different WebGL 2 // API function call when a buffer is bound to // GL_PIXEL_PACK_BUFFER_BINDING point, so must keep track whether that // binding point is non-null to know what is the proper API function to // call. GLctx.currentPixelPackBufferBinding = buffer; } else if (target == 0x88EC /*GL_PIXEL_UNPACK_BUFFER*/) { // In WebGL 2 gl(Compressed)Tex(Sub)Image[23]D entry points, we need to // use a different WebGL 2 API function call when a buffer is bound to // GL_PIXEL_UNPACK_BUFFER_BINDING point, so must keep track whether that // binding point is non-null to know what is the proper API function to // call. GLctx.currentPixelUnpackBufferBinding = buffer; } GLctx.bindBuffer(target, GL.buffers[buffer]); }; var _glBindVertexArray = (vao) => { GLctx.bindVertexArray(GL.vaos[vao]); var ibo = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/); GLctx.currentElementArrayBufferBinding = ibo ? (ibo.name | 0) : 0; }; var _glBlendFunc = (x0, x1) => GLctx.blendFunc(x0, x1); var _glBufferData = (target, size, data, usage) => { if (GL.currentContext.version >= 2) { // If size is zero, WebGL would interpret uploading the whole input // arraybuffer (starting from given offset), which would not make sense in // WebAssembly, so avoid uploading if size is zero. However we must still // call bufferData to establish a backing storage of zero bytes. if (data && size) { GLctx.bufferData(target, HEAPU8, usage, data, size); } else { GLctx.bufferData(target, size, usage); } return; } // N.b. here first form specifies a heap subarray, second form an integer // size, so the ?: code here is polymorphic. It is advised to avoid // randomly mixing both uses in calling code, to avoid any potential JS // engine JIT issues. GLctx.bufferData(target, data ? HEAPU8.subarray(data, data+size) : size, usage); }; var _glBufferSubData = (target, offset, size, data) => { if (GL.currentContext.version >= 2) { size && GLctx.bufferSubData(target, offset, HEAPU8, data, size); return; } GLctx.bufferSubData(target, offset, HEAPU8.subarray(data, data+size)); }; var _glClear = (x0) => GLctx.clear(x0); var _glClearColor = (x0, x1, x2, x3) => GLctx.clearColor(x0, x1, x2, x3); var _glClearDepth = (x0) => GLctx.clearDepth(x0); var _glCompileShader = (shader) => { GLctx.compileShader(GL.shaders[shader]); }; var _glCreateProgram = () => { var id = GL.getNewId(GL.programs); var program = GLctx.createProgram(); // Store additional information needed for each shader program: program.name = id; // Lazy cache results of // glGetProgramiv(GL_ACTIVE_UNIFORM_MAX_LENGTH/GL_ACTIVE_ATTRIBUTE_MAX_LENGTH/GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH) program.maxUniformLength = program.maxAttributeLength = program.maxUniformBlockNameLength = 0; program.uniformIdCounter = 1; GL.programs[id] = program; return id; }; var _glCreateShader = (shaderType) => { var id = GL.getNewId(GL.shaders); GL.shaders[id] = GLctx.createShader(shaderType); return id; }; var _glDeleteBuffers = (n, buffers) => { for (var i = 0; i < n; i++) { var id = HEAP32[(((buffers)+(i*4))>>2)]; var buffer = GL.buffers[id]; // From spec: "glDeleteBuffers silently ignores 0's and names that do not // correspond to existing buffer objects." if (!buffer) continue; GLctx.deleteBuffer(buffer); buffer.name = 0; GL.buffers[id] = null; if (id == GLctx.currentArrayBufferBinding) GLctx.currentArrayBufferBinding = 0; if (id == GLctx.currentElementArrayBufferBinding) GLctx.currentElementArrayBufferBinding = 0; if (id == GLctx.currentPixelPackBufferBinding) GLctx.currentPixelPackBufferBinding = 0; if (id == GLctx.currentPixelUnpackBufferBinding) GLctx.currentPixelUnpackBufferBinding = 0; } }; var _glDeleteProgram = (id) => { if (!id) return; var program = GL.programs[id]; if (!program) { // glDeleteProgram actually signals an error when deleting a nonexisting // object, unlike some other GL delete functions. GL.recordError(0x501 /* GL_INVALID_VALUE */); return; } GLctx.deleteProgram(program); program.name = 0; GL.programs[id] = null; }; var _glDeleteShader = (id) => { if (!id) return; var shader = GL.shaders[id]; if (!shader) { // glDeleteShader actually signals an error when deleting a nonexisting // object, unlike some other GL delete functions. GL.recordError(0x501 /* GL_INVALID_VALUE */); return; } GLctx.deleteShader(shader); GL.shaders[id] = null; }; var _glDeleteVertexArrays = (n, vaos) => { for (var i = 0; i < n; i++) { var id = HEAP32[(((vaos)+(i*4))>>2)]; GLctx.deleteVertexArray(GL.vaos[id]); GL.vaos[id] = null; } }; var _glDepthFunc = (x0) => GLctx.depthFunc(x0); var _glDepthMask = (flag) => { GLctx.depthMask(!!flag); }; var _glDrawArrays = (mode, first, count) => { // bind any client-side buffers GL.preDrawHandleClientVertexAttribBindings(first + count); GLctx.drawArrays(mode, first, count); GL.postDrawHandleClientVertexAttribBindings(); }; var _glDrawElements = (mode, count, type, indices) => { var buf; var vertexes = 0; if (!GLctx.currentElementArrayBufferBinding) { var size = GL.calcBufLength(1, type, 0, count); buf = GL.getTempIndexBuffer(size); GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, buf); GLctx.bufferSubData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, 0, HEAPU8.subarray(indices, indices + size)); // Calculating vertex count if shader's attribute data is on client side if (count > 0) { for (var i = 0; i < GL.currentContext.maxVertexAttribs; ++i) { var cb = GL.currentContext.clientBuffers[i]; if (cb.clientside && cb.enabled) { let arrayClass; switch(type) { case 0x1401 /* GL_UNSIGNED_BYTE */: arrayClass = Uint8Array; break; case 0x1403 /* GL_UNSIGNED_SHORT */: arrayClass = Uint16Array; break; case 0x1405 /* GL_UNSIGNED_INT */: arrayClass = Uint32Array; break; default: GL.recordError(0x502 /* GL_INVALID_OPERATION */); return; } vertexes = new arrayClass(HEAPU8.buffer, indices, count).reduce((max, current) => Math.max(max, current)) + 1; break; } } } // the index is now 0 indices = 0; } // bind any client-side buffers GL.preDrawHandleClientVertexAttribBindings(vertexes); GLctx.drawElements(mode, count, type, indices); GL.postDrawHandleClientVertexAttribBindings(count); if (!GLctx.currentElementArrayBufferBinding) { GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, null); } }; var _glEnable = (x0) => GLctx.enable(x0); var _glEnableVertexAttribArray = (index) => { var cb = GL.currentContext.clientBuffers[index]; cb.enabled = true; GLctx.enableVertexAttribArray(index); }; var _glGenBuffers = (n, buffers) => { GL.genObject(n, buffers, 'createBuffer', GL.buffers ); }; var _glGenVertexArrays = (n, arrays) => { GL.genObject(n, arrays, 'createVertexArray', GL.vaos ); }; var _glGetAttribLocation = (program, name) => GLctx.getAttribLocation(GL.programs[program], UTF8ToString(name)); var _glGetProgramInfoLog = (program, maxLength, length, infoLog) => { var log = GLctx.getProgramInfoLog(GL.programs[program]); if (log === null) log = '(unknown error)'; var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0; if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; }; var _glGetProgramiv = (program, pname, p) => { if (!p) { // GLES2 specification does not specify how to behave if p is a null // pointer. Since calling this function does not make sense if p == null, // issue a GL error to notify user about it. GL.recordError(0x501 /* GL_INVALID_VALUE */); return; } if (program >= GL.counter) { GL.recordError(0x501 /* GL_INVALID_VALUE */); return; } program = GL.programs[program]; if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH var log = GLctx.getProgramInfoLog(program); if (log === null) log = '(unknown error)'; HEAP32[((p)>>2)] = log.length + 1; } else if (pname == 0x8B87 /* GL_ACTIVE_UNIFORM_MAX_LENGTH */) { if (!program.maxUniformLength) { var numActiveUniforms = GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); for (var i = 0; i < numActiveUniforms; ++i) { program.maxUniformLength = Math.max(program.maxUniformLength, GLctx.getActiveUniform(program, i).name.length+1); } } HEAP32[((p)>>2)] = program.maxUniformLength; } else if (pname == 0x8B8A /* GL_ACTIVE_ATTRIBUTE_MAX_LENGTH */) { if (!program.maxAttributeLength) { var numActiveAttributes = GLctx.getProgramParameter(program, 0x8B89/*GL_ACTIVE_ATTRIBUTES*/); for (var i = 0; i < numActiveAttributes; ++i) { program.maxAttributeLength = Math.max(program.maxAttributeLength, GLctx.getActiveAttrib(program, i).name.length+1); } } HEAP32[((p)>>2)] = program.maxAttributeLength; } else if (pname == 0x8A35 /* GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH */) { if (!program.maxUniformBlockNameLength) { var numActiveUniformBlocks = GLctx.getProgramParameter(program, 0x8A36/*GL_ACTIVE_UNIFORM_BLOCKS*/); for (var i = 0; i < numActiveUniformBlocks; ++i) { program.maxUniformBlockNameLength = Math.max(program.maxUniformBlockNameLength, GLctx.getActiveUniformBlockName(program, i).length+1); } } HEAP32[((p)>>2)] = program.maxUniformBlockNameLength; } else { HEAP32[((p)>>2)] = GLctx.getProgramParameter(program, pname); } }; var _glGetShaderInfoLog = (shader, maxLength, length, infoLog) => { var log = GLctx.getShaderInfoLog(GL.shaders[shader]); if (log === null) log = '(unknown error)'; var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0; if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; }; var _glGetShaderiv = (shader, pname, p) => { if (!p) { // GLES2 specification does not specify how to behave if p is a null // pointer. Since calling this function does not make sense if p == null, // issue a GL error to notify user about it. GL.recordError(0x501 /* GL_INVALID_VALUE */); return; } if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH var log = GLctx.getShaderInfoLog(GL.shaders[shader]); if (log === null) log = '(unknown error)'; // The GLES2 specification says that if the shader has an empty info log, // a value of 0 is returned. Otherwise the log has a null char appended. // (An empty string is falsey, so we can just check that instead of // looking at log.length.) var logLength = log ? log.length + 1 : 0; HEAP32[((p)>>2)] = logLength; } else if (pname == 0x8B88) { // GL_SHADER_SOURCE_LENGTH var source = GLctx.getShaderSource(GL.shaders[shader]); // source may be a null, or the empty string, both of which are falsey // values that we report a 0 length for. var sourceLength = source ? source.length + 1 : 0; HEAP32[((p)>>2)] = sourceLength; } else { HEAP32[((p)>>2)] = GLctx.getShaderParameter(GL.shaders[shader], pname); } }; /** @suppress {checkTypes} */ var jstoi_q = (str) => parseInt(str); /** @noinline */ var webglGetLeftBracePos = (name) => name.slice(-1) == ']' && name.lastIndexOf('['); var webglPrepareUniformLocationsBeforeFirstUse = (program) => { var uniformLocsById = program.uniformLocsById, // Maps GLuint -> WebGLUniformLocation uniformSizeAndIdsByName = program.uniformSizeAndIdsByName, // Maps name -> [uniform array length, GLuint] i, j; // On the first time invocation of glGetUniformLocation on this shader program: // initialize cache data structures and discover which uniforms are arrays. if (!uniformLocsById) { // maps GLint integer locations to WebGLUniformLocations program.uniformLocsById = uniformLocsById = {}; // maps integer locations back to uniform name strings, so that we can lazily fetch uniform array locations program.uniformArrayNamesById = {}; var numActiveUniforms = GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); for (i = 0; i < numActiveUniforms; ++i) { var u = GLctx.getActiveUniform(program, i); var nm = u.name; var sz = u.size; var lb = webglGetLeftBracePos(nm); var arrayName = lb > 0 ? nm.slice(0, lb) : nm; // Assign a new location. var id = program.uniformIdCounter; program.uniformIdCounter += sz; // Eagerly get the location of the uniformArray[0] base element. // The remaining indices >0 will be left for lazy evaluation to // improve performance. Those may never be needed to fetch, if the // application fills arrays always in full starting from the first // element of the array. uniformSizeAndIdsByName[arrayName] = [sz, id]; // Store placeholder integers in place that highlight that these // >0 index locations are array indices pending population. for (j = 0; j < sz; ++j) { uniformLocsById[id] = j; program.uniformArrayNamesById[id++] = arrayName; } } } }; var _glGetUniformLocation = (program, name) => { name = UTF8ToString(name); if (program = GL.programs[program]) { webglPrepareUniformLocationsBeforeFirstUse(program); var uniformLocsById = program.uniformLocsById; // Maps GLuint -> WebGLUniformLocation var arrayIndex = 0; var uniformBaseName = name; // Invariant: when populating integer IDs for uniform locations, we must // maintain the precondition that arrays reside in contiguous addresses, // i.e. for a 'vec4 colors[10];', colors[4] must be at location // colors[0]+4. However, user might call glGetUniformLocation(program, // "colors") for an array, so we cannot discover based on the user input // arguments whether the uniform we are dealing with is an array. The only // way to discover which uniforms are arrays is to enumerate over all the // active uniforms in the program. var leftBrace = webglGetLeftBracePos(name); // If user passed an array accessor "[index]", parse the array index off the accessor. if (leftBrace > 0) { arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0; // "index]", coerce parseInt(']') with >>>0 to treat "foo[]" as "foo[0]" and foo[-1] as unsigned out-of-bounds. uniformBaseName = name.slice(0, leftBrace); } // Have we cached the location of this uniform before? // A pair [array length, GLint of the uniform location] var sizeAndId = program.uniformSizeAndIdsByName[uniformBaseName]; // If an uniform with this name exists, and if its index is within the // array limits (if it's even an array), query the WebGLlocation, or // return an existing cached location. if (sizeAndId && arrayIndex < sizeAndId[0]) { arrayIndex += sizeAndId[1]; // Add the base location of the uniform to the array index offset. if ((uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name))) { return arrayIndex; } } } else { // N.b. we are currently unable to distinguish between GL program IDs that // never existed vs GL program IDs that have been deleted, so report // GL_INVALID_VALUE in both cases. GL.recordError(0x501 /* GL_INVALID_VALUE */); } return -1; }; var _glLinkProgram = (program) => { program = GL.programs[program]; GLctx.linkProgram(program); // Invalidate earlier computed uniform->ID mappings, those have now become stale program.uniformLocsById = 0; // Mark as null-like so that glGetUniformLocation() knows to populate this again. program.uniformSizeAndIdsByName = {}; }; var _glShaderSource = (shader, count, string, length) => { var source = GL.getSource(shader, count, string, length); GLctx.shaderSource(GL.shaders[shader], source); }; var webglGetUniformLocation = (location) => { var p = GLctx.currentProgram; if (p) { var webglLoc = p.uniformLocsById[location]; // p.uniformLocsById[location] stores either an integer, or a // WebGLUniformLocation. // If an integer, we have not yet bound the location, so do it now. The // integer value specifies the array index we should bind to. if (typeof webglLoc == 'number') { p.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(p, p.uniformArrayNamesById[location] + (webglLoc > 0 ? `[${webglLoc}]` : '')); } // Else an already cached WebGLUniformLocation, return it. return webglLoc; } else { GL.recordError(0x502/*GL_INVALID_OPERATION*/); } }; var miniTempWebGLFloatBuffers = []; var _glUniformMatrix4fv = (location, count, transpose, value) => { if (GL.currentContext.version >= 2) { count && GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, HEAPF32, ((value)>>2), count*16); return; } if (count <= 18) { // avoid allocation when uploading few enough uniforms var view = miniTempWebGLFloatBuffers[16*count]; // hoist the heap out of the loop for size and for pthreads+growth. var heap = HEAPF32; value = ((value)>>2); count *= 16; for (var i = 0; i < count; i += 16) { var dst = value + i; view[i] = heap[dst]; view[i + 1] = heap[dst + 1]; view[i + 2] = heap[dst + 2]; view[i + 3] = heap[dst + 3]; view[i + 4] = heap[dst + 4]; view[i + 5] = heap[dst + 5]; view[i + 6] = heap[dst + 6]; view[i + 7] = heap[dst + 7]; view[i + 8] = heap[dst + 8]; view[i + 9] = heap[dst + 9]; view[i + 10] = heap[dst + 10]; view[i + 11] = heap[dst + 11]; view[i + 12] = heap[dst + 12]; view[i + 13] = heap[dst + 13]; view[i + 14] = heap[dst + 14]; view[i + 15] = heap[dst + 15]; } } else { var view = HEAPF32.subarray((((value)>>2)), ((value+count*64)>>2)); } GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, view); }; var _glUseProgram = (program) => { program = GL.programs[program]; GLctx.useProgram(program); // Record the currently active program so that we can access the uniform // mapping table of that program. GLctx.currentProgram = program; }; var _glVertexAttribDivisor = (index, divisor) => { GLctx.vertexAttribDivisor(index, divisor); }; var _glVertexAttribPointer = (index, size, type, normalized, stride, ptr) => { var cb = GL.currentContext.clientBuffers[index]; if (!GLctx.currentArrayBufferBinding) { cb.size = size; cb.type = type; cb.normalized = normalized; cb.stride = stride; cb.ptr = ptr; cb.clientside = true; cb.vertexAttribPointerAdaptor = function(index, size, type, normalized, stride, ptr) { this.vertexAttribPointer(index, size, type, normalized, stride, ptr); }; return; } cb.clientside = false; GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr); }; Fetch.init();; // Signal GL rendering layer that processing of a new frame is about to // start. This helps it optimize VBO double-buffering and reduce GPU stalls. registerPreMainLoop(() => GL.newRenderingFrameStarted()); ; var miniTempWebGLFloatBuffersStorage = new Float32Array(288); // Create GL_POOL_TEMP_BUFFERS_SIZE+1 temporary buffers, for uploads of size 0 through GL_POOL_TEMP_BUFFERS_SIZE inclusive for (/**@suppress{duplicate}*/var i = 0; i <= 288; ++i) { miniTempWebGLFloatBuffers[i] = miniTempWebGLFloatBuffersStorage.subarray(0, i); }; function checkIncomingModuleAPI() { ignoredModuleProp('fetchSettings'); } var wasmImports = { /** @export */ _abort_js: __abort_js, /** @export */ _localtime_js: __localtime_js, /** @export */ _tzset_js: __tzset_js, /** @export */ emscripten_date_now: _emscripten_date_now, /** @export */ emscripten_fetch_free: _emscripten_fetch_free, /** @export */ emscripten_get_element_css_size: _emscripten_get_element_css_size, /** @export */ emscripten_is_main_browser_thread: _emscripten_is_main_browser_thread, /** @export */ emscripten_request_animation_frame_loop: _emscripten_request_animation_frame_loop, /** @export */ emscripten_resize_heap: _emscripten_resize_heap, /** @export */ emscripten_set_canvas_element_size: _emscripten_set_canvas_element_size, /** @export */ emscripten_set_click_callback_on_thread: _emscripten_set_click_callback_on_thread, /** @export */ emscripten_set_resize_callback_on_thread: _emscripten_set_resize_callback_on_thread, /** @export */ emscripten_start_fetch: _emscripten_start_fetch, /** @export */ emscripten_webgl_create_context: _emscripten_webgl_create_context, /** @export */ emscripten_webgl_make_context_current: _emscripten_webgl_make_context_current, /** @export */ fd_close: _fd_close, /** @export */ fd_seek: _fd_seek, /** @export */ fd_write: _fd_write, /** @export */ glAttachShader: _glAttachShader, /** @export */ glBindBuffer: _glBindBuffer, /** @export */ glBindVertexArray: _glBindVertexArray, /** @export */ glBlendFunc: _glBlendFunc, /** @export */ glBufferData: _glBufferData, /** @export */ glBufferSubData: _glBufferSubData, /** @export */ glClear: _glClear, /** @export */ glClearColor: _glClearColor, /** @export */ glClearDepth: _glClearDepth, /** @export */ glCompileShader: _glCompileShader, /** @export */ glCreateProgram: _glCreateProgram, /** @export */ glCreateShader: _glCreateShader, /** @export */ glDeleteBuffers: _glDeleteBuffers, /** @export */ glDeleteProgram: _glDeleteProgram, /** @export */ glDeleteShader: _glDeleteShader, /** @export */ glDeleteVertexArrays: _glDeleteVertexArrays, /** @export */ glDepthFunc: _glDepthFunc, /** @export */ glDepthMask: _glDepthMask, /** @export */ glDrawArrays: _glDrawArrays, /** @export */ glDrawElements: _glDrawElements, /** @export */ glEnable: _glEnable, /** @export */ glEnableVertexAttribArray: _glEnableVertexAttribArray, /** @export */ glGenBuffers: _glGenBuffers, /** @export */ glGenVertexArrays: _glGenVertexArrays, /** @export */ glGetAttribLocation: _glGetAttribLocation, /** @export */ glGetProgramInfoLog: _glGetProgramInfoLog, /** @export */ glGetProgramiv: _glGetProgramiv, /** @export */ glGetShaderInfoLog: _glGetShaderInfoLog, /** @export */ glGetShaderiv: _glGetShaderiv, /** @export */ glGetUniformLocation: _glGetUniformLocation, /** @export */ glLinkProgram: _glLinkProgram, /** @export */ glShaderSource: _glShaderSource, /** @export */ glUniformMatrix4fv: _glUniformMatrix4fv, /** @export */ glUseProgram: _glUseProgram, /** @export */ glVertexAttribDivisor: _glVertexAttribDivisor, /** @export */ glVertexAttribPointer: _glVertexAttribPointer }; var wasmExports; createWasm(); var ___wasm_call_ctors = createExportWrapper('__wasm_call_ctors', 0); var _free = createExportWrapper('free', 1); var _malloc = createExportWrapper('malloc', 1); var _main = Module['_main'] = createExportWrapper('main', 2); var _fflush = createExportWrapper('fflush', 1); var _strerror = createExportWrapper('strerror', 1); var _emscripten_stack_init = () => (_emscripten_stack_init = wasmExports['emscripten_stack_init'])(); var _emscripten_stack_get_free = () => (_emscripten_stack_get_free = wasmExports['emscripten_stack_get_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_restore = (a0) => (__emscripten_stack_restore = wasmExports['_emscripten_stack_restore'])(a0); var __emscripten_stack_alloc = (a0) => (__emscripten_stack_alloc = wasmExports['_emscripten_stack_alloc'])(a0); var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'])(); // include: postamble.js // === Auto-generated postamble setup entry stuff === var missingLibrarySymbols = [ 'writeI53ToI64Clamped', 'writeI53ToI64Signaling', 'writeI53ToU64Clamped', 'writeI53ToU64Signaling', 'convertI32PairToI53', 'convertI32PairToI53Checked', 'convertU32PairToI53', 'stackAlloc', 'getTempRet0', 'setTempRet0', 'zeroMemory', 'strError', 'inetPton4', 'inetNtop4', 'inetPton6', 'inetNtop6', 'readSockaddr', 'writeSockaddr', 'emscriptenLog', 'readEmAsmArgs', 'getExecutableName', 'listenOnce', 'autoResumeAudioContext', 'getDynCaller', 'dynCall', 'runtimeKeepalivePush', 'runtimeKeepalivePop', 'asmjsMangle', 'asyncLoad', 'mmapAlloc', 'getNativeTypeSize', 'addOnInit', 'addOnPostCtor', 'addOnPreMain', 'STACK_SIZE', 'STACK_ALIGN', 'POINTER_SIZE', 'ASSERTIONS', 'getCFunc', 'ccall', 'cwrap', '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', 'stringToUTF8OnStack', 'writeArrayToMemory', 'registerKeyEventCallback', 'registerWheelEventCallback', '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', 'setCanvasElementSize', 'getCanvasElementSize', 'jsStackTrace', 'getCallstack', 'convertPCtoSourceLocation', 'getEnvStrings', 'checkWasiClock', 'wasiRightsToMuslOFlags', 'wasiOFlagsToMuslOFlags', 'initRandomFill', 'randomFill', 'safeSetTimeout', 'setImmediateWrapped', 'safeRequestAnimationFrame', 'clearImmediateWrapped', 'registerPostMainLoop', 'getPromise', 'makePromise', 'idsToPromises', 'makePromiseCallback', 'ExceptionInfo', 'findMatchingCatch', 'Browser_asyncPrepareDataCounter', 'arraySum', 'addDays', 'getSocketFromFD', 'getSocketAddress', 'FS_createPreloadedFile', 'FS_modeStringToFlags', 'FS_getMode', 'FS_stdin_getChar', 'FS_unlink', 'FS_createDataFile', 'FS_mkdirTree', '_setNetworkCallback', 'heapObjectForWebGLType', 'toTypedArrayIndex', 'emscriptenWebGLGet', 'computeUnpackAlignedImageSize', 'colorChannelsInGlTextureFormat', 'emscriptenWebGLGetTexPixelData', 'emscriptenWebGLGetUniform', 'emscriptenWebGLGetVertexAttrib', '__glGetActiveAttribOrUniform', 'emscriptenWebGLGetBufferBinding', 'emscriptenWebGLValidateMapBufferTarget', 'writeGLArray', 'registerWebGlEventCallback', 'runAndAbortIfError', 'emscriptenWebGLGetIndexed', 'ALLOC_NORMAL', 'ALLOC_STACK', 'allocate', 'writeStringToMemory', 'writeAsciiToMemory', 'setErrNo', 'demangle', 'stackTrace', ]; missingLibrarySymbols.forEach(missingLibrarySymbol) var unexportedSymbols = [ 'run', 'addRunDependency', 'removeRunDependency', 'out', 'err', 'callMain', 'abort', 'wasmMemory', 'wasmExports', 'writeStackCookie', 'checkStackCookie', 'writeI53ToI64', 'readI53FromI64', 'readI53FromU64', 'INT53_MAX', 'INT53_MIN', 'bigintToI53Checked', 'stackSave', 'stackRestore', 'ptrToString', 'exitJS', 'getHeapMax', 'growMemory', 'ENV', 'ERRNO_CODES', 'DNS', 'Protocols', 'Sockets', 'timers', 'warnOnce', 'readEmAsmArgsArray', 'jstoi_q', 'jstoi_s', 'handleException', 'keepRuntimeAlive', 'callUserCallback', 'maybeExit', 'alignMemory', 'HandleAllocator', 'wasmTable', 'noExitRuntime', 'addOnPreRun', 'addOnExit', 'addOnPostRun', 'freeTableIndexes', 'functionsInTableMap', 'setValue', 'getValue', 'PATH', 'PATH_FS', 'UTF8Decoder', 'UTF8ArrayToString', 'UTF8ToString', 'stringToUTF8Array', 'stringToUTF8', 'lengthBytesUTF8', 'UTF16Decoder', 'JSEvents', 'specialHTMLTargets', 'maybeCStringToJsString', 'findEventTarget', 'findCanvasEventTarget', 'getBoundingClientRect', 'fillMouseEventData', 'registerMouseEventCallback', 'registerUiEventCallback', 'currentFullscreenStrategy', 'restoreOldWindowedStyle', 'UNWIND_CACHE', 'ExitStatus', 'flush_NO_FILESYSTEM', 'emSetImmediate', 'emClearImmediate_deps', 'emClearImmediate', 'registerPreMainLoop', 'promiseMap', 'uncaughtExceptionCount', 'exceptionLast', 'exceptionCaught', 'Browser', 'getPreloadedImageData__data', 'wget', 'MONTH_DAYS_REGULAR', 'MONTH_DAYS_LEAP', 'MONTH_DAYS_REGULAR_CUMULATIVE', 'MONTH_DAYS_LEAP_CUMULATIVE', 'isLeapYear', 'ydayFromDate', 'SYSCALLS', 'preloadPlugins', 'FS_stdin_getChar_buffer', 'FS_createPath', 'FS_createDevice', 'FS_readFile', 'FS', 'FS_createLazyFile', 'MEMFS', 'TTY', 'PIPEFS', 'SOCKFS', 'tempFixedLengthArray', 'miniTempWebGLFloatBuffers', 'miniTempWebGLIntBuffers', 'webgl_enable_ANGLE_instanced_arrays', 'webgl_enable_OES_vertex_array_object', 'webgl_enable_WEBGL_draw_buffers', 'webgl_enable_WEBGL_multi_draw', 'webgl_enable_EXT_polygon_offset_clamp', 'webgl_enable_EXT_clip_control', 'webgl_enable_WEBGL_polygon_mode', 'GL', 'webglGetUniformLocation', 'webglPrepareUniformLocationsBeforeFirstUse', 'webglGetLeftBracePos', 'AL', 'GLUT', 'EGL', 'GLEW', 'IDBStore', 'SDL', 'SDL_gfx', 'webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance', 'webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance', 'allocateUTF8', 'allocateUTF8OnStack', 'print', 'printErr', 'Fetch', 'fetchDeleteCachedData', 'fetchLoadCachedData', 'fetchCacheData', 'fetchXHR', ]; unexportedSymbols.forEach(unexportedRuntimeSymbol); var calledRun; function callMain() { assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])'); assert(typeof onPreRuns === 'undefined' || onPreRuns.length == 0, 'cannot call main when preRun functions remain to be called'); var entryFunction = _main; var argc = 0; var argv = 0; try { var ret = entryFunction(argc, argv); // if we're not running an evented main loop, it's time to exit exitJS(ret, /* implicit = */ true); return ret; } catch (e) { return handleException(e); } } 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. _emscripten_stack_init(); // TODO(sbc): Move writeStackCookie to native to to avoid this. writeStackCookie(); } function run() { if (runDependencies > 0) { dependenciesFulfilled = run; return; } stackCheckInit(); preRun(); // a preRun added a dependency, run will be called later if (runDependencies > 0) { dependenciesFulfilled = run; 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 assert(!calledRun); calledRun = true; Module['calledRun'] = true; if (ABORT) return; initRuntime(); preMain(); Module['onRuntimeInitialized']?.(); var noInitialRun = Module['noInitialRun'];legacyModuleProp('noInitialRun', 'noInitialRun'); if (!noInitialRun) callMain(); postRun(); } if (Module['setStatus']) { Module['setStatus']('Running...'); setTimeout(() => { setTimeout(() => 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