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Diffstat (limited to 'public/themes/dist/output.js')
| -rw-r--r-- | public/themes/dist/output.js | 3841 |
1 files changed, 3841 insertions, 0 deletions
diff --git a/public/themes/dist/output.js b/public/themes/dist/output.js new file mode 100644 index 0000000..b19a1a3 --- /dev/null +++ b/public/themes/dist/output.js @@ -0,0 +1,3841 @@ +// 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<Module> +// 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 importScripts == 'function'; +// N.b. Electron.js environment is simultaneously a NODE-environment, but +// also a web environment. +var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string' && process.type != 'renderer'; +var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; + +if (ENVIRONMENT_IS_NODE) { + // `require()` is no-op in an ESM module, use `createRequire()` to construct + // the require()` function. This is only necessary for multi-environment + // builds, `-sENVIRONMENT=node` emits a static import declaration instead. + // TODO: Swap all `require()`'s with `import()`'s? + +} + +// --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. Normalizing isn't + // necessary in that case, the path should already be absolute. + filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename); + var ret = fs.readFileSync(filename); + assert(ret.buffer); + return ret; +}; + +readAsync = (filename, binary = true) => { + // See the comment in the `readBinary` function. + filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename); + return new Promise((resolve, reject) => { + fs.readFile(filename, binary ? undefined : 'utf8', (err, data) => { + if (err) reject(err); + else resolve(binary ? data.buffer : data); + }); + }); +}; +// end include: node_shell_read.js + if (!Module['thisProgram'] && process.argv.length > 1) { + thisProgram = process.argv[1].replace(/\\/g, '/'); + } + + arguments_ = process.argv.slice(2); + + if (typeof module != 'undefined') { + module['exports'] = Module; + } + + quit_ = (status, toThrow) => { + process.exitCode = status; + throw toThrow; + }; + +} else +if (ENVIRONMENT_IS_SHELL) { + + if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); + +} else + +// Note that this includes Node.js workers when relevant (pthreads is enabled). +// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and +// ENVIRONMENT_IS_NODE. +if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) { + if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled + scriptDirectory = self.location.href; + } else if (typeof document != 'undefined' && document.currentScript) { // web + scriptDirectory = document.currentScript.src; + } + // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them. + // otherwise, slice off the final part of the url to find the script directory. + // if scriptDirectory does not contain a slash, lastIndexOf will return -1, + // and scriptDirectory will correctly be replaced with an empty string. + // If scriptDirectory contains a query (starting with ?) or a fragment (starting with #), + // they are removed because they could contain a slash. + if (scriptDirectory.startsWith('blob:')) { + scriptDirectory = ''; + } else { + scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, '').lastIndexOf('/')+1); + } + + if (!(typeof window == 'object' || typeof importScripts == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); + + { +// 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 = (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); + }); + } + return fetch(url, { credentials: 'same-origin' }) + .then((response) => { + if (response.ok) { + return response.arrayBuffer(); + } + return Promise.reject(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, +/** @type {!Float64Array} */ + HEAPF64; + +// include: runtime_shared.js +function updateMemoryViews() { + var b = wasmMemory.buffer; + Module['HEAP8'] = HEAP8 = new Int8Array(b); + Module['HEAP16'] = HEAP16 = new Int16Array(b); + Module['HEAPU8'] = HEAPU8 = new Uint8Array(b); + Module['HEAPU16'] = HEAPU16 = new Uint16Array(b); + Module['HEAP32'] = HEAP32 = new Int32Array(b); + Module['HEAPU32'] = HEAPU32 = new Uint32Array(b); + Module['HEAPF32'] = HEAPF32 = new Float32Array(b); + Module['HEAPF64'] = HEAPF64 = new Float64Array(b); +} + +// end include: runtime_shared.js +assert(!Module['STACK_SIZE'], 'STACK_SIZE can no longer be set at runtime. Use -sSTACK_SIZE at link time') + +assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined, + 'JS engine does not provide full typed array support'); + +// 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'); + +// 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 +var __ATPRERUN__ = []; // functions called before the runtime is initialized +var __ATINIT__ = []; // functions called during startup +var __ATMAIN__ = []; // functions called when main() is to be run +var __ATEXIT__ = []; // functions called during shutdown +var __ATPOSTRUN__ = []; // functions called after the main() is called + +var runtimeInitialized = false; + +function preRun() { + var preRuns = Module['preRun']; + if (preRuns) { + if (typeof preRuns == 'function') preRuns = [preRuns]; + preRuns.forEach(addOnPreRun); + } + callRuntimeCallbacks(__ATPRERUN__); +} + +function initRuntime() { + assert(!runtimeInitialized); + runtimeInitialized = true; + + checkStackCookie(); + + + callRuntimeCallbacks(__ATINIT__); +} + +function preMain() { + checkStackCookie(); + + callRuntimeCallbacks(__ATMAIN__); +} + +function postRun() { + checkStackCookie(); + + var postRuns = Module['postRun']; + if (postRuns) { + if (typeof postRuns == 'function') postRuns = [postRuns]; + postRuns.forEach(addOnPostRun); + } + + callRuntimeCallbacks(__ATPOSTRUN__); +} + +function addOnPreRun(cb) { + __ATPRERUN__.unshift(cb); +} + +function addOnInit(cb) { + __ATINIT__.unshift(cb); +} + +function addOnPreMain(cb) { + __ATMAIN__.unshift(cb); +} + +function addOnExit(cb) { +} + +function addOnPostRun(cb) { + __ATPOSTRUN__.unshift(cb); +} + +// include: runtime_math.js +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc + +assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +// end include: runtime_math.js +// A counter of dependencies for calling run(). If we need to +// do asynchronous work before running, increment this and +// decrement it. Incrementing must happen in a place like +// Module.preRun (used by emcc to add file preloading). +// Note that you can add dependencies in preRun, even though +// it happens right before run - run will be postponed until +// the dependencies are met. +var runDependencies = 0; +var runDependencyWatcher = null; +var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled +var runDependencyTracking = {}; + +function getUniqueRunDependency(id) { + var orig = id; + while (1) { + if (!runDependencyTracking[id]) return id; + id = orig + Math.random(); + } +} + +function addRunDependency(id) { + runDependencies++; + + Module['monitorRunDependencies']?.(runDependencies); + + if (id) { + assert(!runDependencyTracking[id]); + runDependencyTracking[id] = 1; + if (runDependencyWatcher === null && typeof setInterval != 'undefined') { + // Check for missing dependencies every few seconds + runDependencyWatcher = setInterval(() => { + if (ABORT) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + return; + } + var shown = false; + for (var dep in runDependencyTracking) { + if (!shown) { + shown = true; + err('still waiting on run dependencies:'); + } + err(`dependency: ${dep}`); + } + if (shown) { + err('(end of list)'); + } + }, 10000); + } + } else { + err('warning: run dependency added without ID'); + } +} + +function removeRunDependency(id) { + runDependencies--; + + Module['monitorRunDependencies']?.(runDependencies); + + if (id) { + assert(runDependencyTracking[id]); + delete runDependencyTracking[id]; + } else { + err('warning: run dependency removed without ID'); + } + if (runDependencies == 0) { + if (runDependencyWatcher !== null) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + } + if (dependenciesFulfilled) { + var callback = dependenciesFulfilled; + dependenciesFulfilled = null; + callback(); // can add another dependenciesFulfilled + } + } +} + +/** @param {string|number=} what */ +function abort(what) { + Module['onAbort']?.(what); + + what = 'Aborted(' + what + ')'; + // TODO(sbc): Should we remove printing and leave it up to whoever + // catches the exception? + err(what); + + ABORT = true; + + // Use a wasm runtime error, because a JS error might be seen as a foreign + // exception, which means we'd run destructors on it. We need the error to + // simply make the program stop. + // FIXME This approach does not work in Wasm EH because it currently does not assume + // all RuntimeErrors are from traps; it decides whether a RuntimeError is from + // a trap or not based on a hidden field within the object. So at the moment + // we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that + // allows this in the wasm spec. + + // Suppress closure compiler warning here. Closure compiler's builtin extern + // definition for WebAssembly.RuntimeError claims it takes no arguments even + // though it can. + // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed. + /** @suppress {checkTypes} */ + var e = new WebAssembly.RuntimeError(what); + + // Throw the error whether or not MODULARIZE is set because abort is used + // in code paths apart from instantiation where an exception is expected + // to be thrown when abort is called. + throw e; +} + +// include: memoryprofiler.js +// end include: memoryprofiler.js +// show errors on likely calls to FS when it was not included +var FS = { + error() { + abort('Filesystem support (FS) was not included. The problem is that you are using files from JS, but files were not used from C/C++, so filesystem support was not auto-included. You can force-include filesystem support with -sFORCE_FILESYSTEM'); + }, + init() { FS.error() }, + createDataFile() { FS.error() }, + createPreloadedFile() { FS.error() }, + createLazyFile() { FS.error() }, + open() { FS.error() }, + mkdev() { FS.error() }, + registerDevice() { FS.error() }, + analyzePath() { FS.error() }, + + ErrnoError() { FS.error() }, +}; +Module['FS_createDataFile'] = FS.createDataFile; +Module['FS_createPreloadedFile'] = FS.createPreloadedFile; + +// include: URIUtils.js +// Prefix of data URIs emitted by SINGLE_FILE and related options. +var dataURIPrefix = 'data:application/octet-stream;base64,'; + +/** + * Indicates whether filename is a base64 data URI. + * @noinline + */ +var isDataURI = (filename) => filename.startsWith(dataURIPrefix); + +/** + * Indicates whether filename is delivered via file protocol (as opposed to http/https) + * @noinline + */ +var isFileURI = (filename) => filename.startsWith('file://'); +// end include: URIUtils.js +function createExportWrapper(name, 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); + }; +} + +// include: runtime_exceptions.js +// end include: runtime_exceptions.js +function findWasmBinary() { + var f = 'output.wasm'; + if (!isDataURI(f)) { + return locateFile(f); + } + return f; +} + +var wasmBinaryFile; + +function getBinarySync(file) { + if (file == wasmBinaryFile && wasmBinary) { + return new Uint8Array(wasmBinary); + } + if (readBinary) { + return readBinary(file); + } + throw 'both async and sync fetching of the wasm failed'; +} + +function getBinaryPromise(binaryFile) { + // If we don't have the binary yet, load it asynchronously using readAsync. + if (!wasmBinary + ) { + // Fetch the binary using readAsync + return readAsync(binaryFile).then( + (response) => new Uint8Array(/** @type{!ArrayBuffer} */(response)), + // Fall back to getBinarySync if readAsync fails + () => getBinarySync(binaryFile) + ); + } + + // Otherwise, getBinarySync should be able to get it synchronously + return Promise.resolve().then(() => getBinarySync(binaryFile)); +} + +function instantiateArrayBuffer(binaryFile, imports, receiver) { + return getBinaryPromise(binaryFile).then((binary) => { + return WebAssembly.instantiate(binary, imports); + }).then(receiver, (reason) => { + err(`failed to asynchronously prepare wasm: ${reason}`); + + // Warn on some common problems. + if (isFileURI(wasmBinaryFile)) { + err(`warning: Loading from a file URI (${wasmBinaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`); + } + abort(reason); + }); +} + +function instantiateAsync(binary, binaryFile, imports, callback) { + if (!binary && + typeof WebAssembly.instantiateStreaming == 'function' && + !isDataURI(binaryFile) && + // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously. + !isFileURI(binaryFile) && + // Avoid instantiateStreaming() on Node.js environment for now, as while + // Node.js v18.1.0 implements it, it does not have a full fetch() + // implementation yet. + // + // Reference: + // https://github.com/emscripten-core/emscripten/pull/16917 + !ENVIRONMENT_IS_NODE && + typeof fetch == 'function') { + return fetch(binaryFile, { credentials: 'same-origin' }).then((response) => { + // Suppress closure warning here since the upstream definition for + // instantiateStreaming only allows Promise<Repsponse> rather than + // an actual Response. + // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed. + /** @suppress {checkTypes} */ + var result = WebAssembly.instantiateStreaming(response, imports); + + return result.then( + callback, + function(reason) { + // We expect the most common failure cause to be a bad MIME type for the binary, + // in which case falling back to ArrayBuffer instantiation should work. + err(`wasm streaming compile failed: ${reason}`); + err('falling back to ArrayBuffer instantiation'); + return instantiateArrayBuffer(binaryFile, imports, callback); + }); + }); + } + return instantiateArrayBuffer(binaryFile, imports, callback); +} + +function getWasmImports() { + // prepare imports + return { + 'env': wasmImports, + 'wasi_snapshot_preview1': wasmImports, + } +} + +// Create the wasm instance. +// Receives the wasm imports, returns the exports. +function createWasm() { + var info = getWasmImports(); + // 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'); + + addOnInit(wasmExports['__wasm_call_ctors']); + + 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. + receiveInstance(result['instance']); + } + + // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback + // to manually instantiate the Wasm module themselves. This allows pages to + // run the instantiation parallel to any other async startup actions they are + // performing. + // Also pthreads and wasm workers initialize the wasm instance through this + // path. + if (Module['instantiateWasm']) { + try { + return Module['instantiateWasm'](info, receiveInstance); + } catch(e) { + err(`Module.instantiateWasm callback failed with error: ${e}`); + return false; + } + } + + wasmBinaryFile ??= findWasmBinary(); + + instantiateAsync(wasmBinary, wasmBinaryFile, info, receiveInstantiationResult); + return {}; // no exports yet; we'll fill them in later +} + +// Globals used by JS i64 conversions (see makeSetValue) +var tempDouble; +var tempI64; + +// include: runtime_debug.js +// Endianness check +(() => { + var h16 = new Int16Array(1); + var h8 = new Int8Array(h16.buffer); + h16[0] = 0x6373; + if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)'; +})(); + +if (Module['ENVIRONMENT']) { + throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)'); +} + +function legacyModuleProp(prop, newName, incoming=true) { + if (!Object.getOwnPropertyDescriptor(Module, prop)) { + Object.defineProperty(Module, prop, { + configurable: true, + get() { + let extra = incoming ? ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)' : ''; + abort(`\`Module.${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 +// === Body === +// end include: preamble.js + + + /** @constructor */ + function ExitStatus(status) { + this.name = 'ExitStatus'; + this.message = `Program terminated with exit(${status})`; + this.status = status; + } + + var callRuntimeCallbacks = (callbacks) => { + // Pass the module as the first argument. + callbacks.forEach((f) => f(Module)); + }; + + + /** + * @param {number} ptr + * @param {string} type + */ + function getValue(ptr, type = 'i8') { + if (type.endsWith('*')) type = '*'; + switch (type) { + case 'i1': return HEAP8[ptr]; + case 'i8': return HEAP8[ptr]; + case 'i16': return HEAP16[((ptr)>>1)]; + case 'i32': return HEAP32[((ptr)>>2)]; + case 'i64': abort('to do getValue(i64) use WASM_BIGINT'); + case 'float': return HEAPF32[((ptr)>>2)]; + case 'double': return HEAPF64[((ptr)>>3)]; + case '*': return HEAPU32[((ptr)>>2)]; + default: abort(`invalid type for getValue: ${type}`); + } + } + + 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': abort('to do setValue(i64) use WASM_BIGINT'); + case 'float': HEAPF32[((ptr)>>2)] = value; break; + case 'double': HEAPF64[((ptr)>>3)] = value; break; + case '*': HEAPU32[((ptr)>>2)] = value; break; + default: abort(`invalid type for setValue: ${type}`); + } + } + + 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 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 ___assert_fail = (condition, filename, line, func) => { + abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']); + }; + + var __abort_js = () => { + abort('native code called abort()'); + }; + + 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 __emscripten_memcpy_js = (dest, src, num) => HEAPU8.copyWithin(dest, src, src + num); + + 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 convertI32PairToI53Checked = (lo, hi) => { + assert(lo == (lo >>> 0) || lo == (lo|0)); // lo should either be a i32 or a u32 + assert(hi === (hi|0)); // hi should be a i32 + return ((hi + 0x200000) >>> 0 < 0x400001 - !!lo) ? (lo >>> 0) + hi * 4294967296 : NaN; + }; + function __localtime_js(time_low, time_high,tmPtr) { + var time = convertI32PairToI53Checked(time_low, time_high); + + + 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(); + + var JSEvents = { + 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 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) : undefined); + 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; + wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr); + } + 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 { + constructor() { + // TODO(https://github.com/emscripten-core/emscripten/issues/21414): + // Use inline field declarations. + this.allocated = [undefined]; + this.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<number>} */(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<number>} */(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) => { + return !!(ctx.extPolygonOffsetClamp = ctx.getExtension('EXT_polygon_offset_clamp')); + }; + + var webgl_enable_EXT_clip_control = (ctx) => { + return !!(ctx.extClipControl = ctx.getExtension('EXT_clip_control')); + }; + + var webgl_enable_WEBGL_polygon_mode = (ctx) => { + return !!(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. + return !!(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; + } + 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] && 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] + }; + + 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_low, offset_high,whence,newOffset) { + var offset = convertI32PairToI53Checked(offset_low, offset_high); + + + 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) => { + 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 _glDrawArraysInstanced = (mode, first, count, primcount) => { + GLctx.drawArraysInstanced(mode, first, count, primcount); + }; + + 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) => { + return 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 _glUniform1f = (location, v0) => { + GLctx.uniform1f(webglGetUniformLocation(location), v0); + }; + + + 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 */ + __assert_fail: ___assert_fail, + /** @export */ + _abort_js: __abort_js, + /** @export */ + _emscripten_fetch_free: __emscripten_fetch_free, + /** @export */ + _emscripten_memcpy_js: __emscripten_memcpy_js, + /** @export */ + _localtime_js: __localtime_js, + /** @export */ + _tzset_js: __tzset_js, + /** @export */ + emscripten_date_now: _emscripten_date_now, + /** @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 */ + glDrawArraysInstanced: _glDrawArraysInstanced, + /** @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 */ + glUniform1f: _glUniform1f, + /** @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 _main = Module['_main'] = createExportWrapper('main', 2); +var _free = createExportWrapper('free', 1); +var _malloc = createExportWrapper('malloc', 1); +var _fflush = createExportWrapper('fflush', 1); +var _strerror = createExportWrapper('strerror', 1); +var __emscripten_tempret_set = createExportWrapper('_emscripten_tempret_set', 1); +var __emscripten_tempret_get = createExportWrapper('_emscripten_tempret_get', 0); +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'])(); +var dynCall_jiji = Module['dynCall_jiji'] = createExportWrapper('dynCall_jiji', 5); + + +// include: postamble.js +// === Auto-generated postamble setup entry stuff === + +var missingLibrarySymbols = [ + 'writeI53ToI64Clamped', + 'writeI53ToI64Signaling', + 'writeI53ToU64Clamped', + 'writeI53ToU64Signaling', + 'convertI32PairToI53', + 'convertU32PairToI53', + 'stackAlloc', + 'getTempRet0', + 'setTempRet0', + 'zeroMemory', + 'strError', + 'inetPton4', + 'inetNtop4', + 'inetPton6', + 'inetNtop6', + 'readSockaddr', + 'writeSockaddr', + 'initRandomFill', + 'randomFill', + 'emscriptenLog', + 'readEmAsmArgs', + 'getExecutableName', + 'listenOnce', + 'autoResumeAudioContext', + 'dynCallLegacy', + 'getDynCaller', + 'dynCall', + 'runtimeKeepalivePush', + 'runtimeKeepalivePop', + 'asmjsMangle', + 'asyncLoad', + 'mmapAlloc', + 'getNativeTypeSize', + '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', + 'createDyncallWrapper', + 'safeSetTimeout', + 'setImmediateWrapped', + 'clearImmediateWrapped', + 'polyfillSetImmediate', + 'registerPostMainLoop', + 'getPromise', + 'makePromise', + 'idsToPromises', + 'makePromiseCallback', + 'ExceptionInfo', + 'findMatchingCatch', + 'Browser_asyncPrepareDataCounter', + 'safeRequestAnimationFrame', + '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', + 'addOnPreRun', + 'addOnInit', + 'addOnPreMain', + 'addOnExit', + 'addOnPostRun', + 'addRunDependency', + 'removeRunDependency', + 'out', + 'err', + 'callMain', + 'abort', + 'wasmMemory', + 'wasmExports', + 'writeStackCookie', + 'checkStackCookie', + 'writeI53ToI64', + 'readI53FromI64', + 'readI53FromU64', + 'convertI32PairToI53Checked', + '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', + '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', + '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; +var calledPrerun; + +dependenciesFulfilled = function runCaller() { + // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false) + if (!calledRun) run(); + if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled +}; + +function callMain() { + assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])'); + assert(calledPrerun, 'cannot call main without calling preRun first'); + + 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) { + return; + } + + stackCheckInit(); + + if (!calledPrerun) { + calledPrerun = 1; + preRun(); + + // a preRun added a dependency, run will be called later + if (runDependencies > 0) { + return; + } + } + + function doRun() { + // run may have just been called through dependencies being fulfilled just in this very frame, + // or while the async setStatus time below was happening + if (calledRun) return; + calledRun = 1; + Module['calledRun'] = 1; + + if (ABORT) return; + + initRuntime(); + + preMain(); + + Module['onRuntimeInitialized']?.(); + + if (shouldRunNow) 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()(); + } +} + +// shouldRunNow refers to calling main(), not run(). +var shouldRunNow = true; + +if (Module['noInitialRun']) shouldRunNow = false; + +run(); + +// end include: postamble.js + |