diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..9f11b75 --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +.idea/ diff --git a/index.html b/index.html index 8377494..168de30 100644 --- a/index.html +++ b/index.html @@ -222,6 +222,19 @@

+ + 23 Jul 2023 + Game of Life + After previously implementing game of life in p5.js, I implemented a generic + simulator, for more obsquere automata. + → + + + 2 Feb 2022 + Percolation + A small demonstration to show liquid percolating through a medium as more cracks appear - and at what p value this happens. + → + 1 Oct 2021 Drawing Bézier curves @@ -254,12 +267,6 @@ 3Blue1Brown. → - - 2 May 2018 - Game of Life - A JS implementation of Conway's classic. Still fascinating. - → - 18 Mar 2018 Calculating PI diff --git a/projects/cellular_automata/asset-manifest.json b/projects/cellular_automata/asset-manifest.json new file mode 100644 index 0000000..9c4b18c --- /dev/null +++ b/projects/cellular_automata/asset-manifest.json @@ -0,0 +1,13 @@ +{ + "files": { + "main.css": "/projects/cellular_automata/static/css/main.5cae1eb5.css", + "main.js": "/projects/cellular_automata/static/js/main.608a23ae.js", + "index.html": "/projects/cellular_automata/index.html", + "main.5cae1eb5.css.map": "/projects/cellular_automata/static/css/main.5cae1eb5.css.map", + "main.608a23ae.js.map": "/projects/cellular_automata/static/js/main.608a23ae.js.map" + }, + "entrypoints": [ + "static/css/main.5cae1eb5.css", + "static/js/main.608a23ae.js" + ] +} \ No newline at end of file diff --git a/projects/cellular_automata/favicon.ico b/projects/cellular_automata/favicon.ico new file mode 100644 index 0000000..a11777c Binary files /dev/null and b/projects/cellular_automata/favicon.ico differ diff --git a/projects/cellular_automata/index.html b/projects/cellular_automata/index.html new file mode 100644 index 0000000..a3342a7 --- /dev/null +++ b/projects/cellular_automata/index.html @@ -0,0 +1 @@ +React App
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a/projects/cellular_automata/static/js/main.608a23ae.js b/projects/cellular_automata/static/js/main.608a23ae.js new file mode 100644 index 0000000..f964efc --- /dev/null +++ b/projects/cellular_automata/static/js/main.608a23ae.js @@ -0,0 +1,3 @@ +/*! For license information please see main.608a23ae.js.LICENSE.txt */ +(()=>{"use strict";var e={463:(e,t,n)=>{var r=n(791),l=n(296);function a(e){for(var t="https://reactjs.org/docs/error-decoder.html?invariant="+e,n=1;n
+ ← Back + +
+

Percolation

+

A simulation written in C & Raylib.

+
+ +
+

+ Percolation is a simple model for connectivity on a grid. Each cell is either open or closed. + This simulation stops as soon as there is a path from the top of the grid to the bottom through the open cells. +

+
+

+ In this simulation, cells are randomly opened on a grid. Percolation occurs when there exists + a connected path of open cells from the top to the bottom of the grid. It is a neat way to visualise + threshold behaviour: below a certain probability nothing connects, and above it large connected regions + suddenly begin to appear. +

+
+
+ +
+
+

Canvas

+ +
+ +
+ +
+ +
Downloading...
+ + +
+ Show console output + + +
+
+ +
+

Technical Details

+

+ The simulation uses a disjoint-set (Union-Find) style connectivity algorithm. As random cells open, + each open cell is union-ed with its open neighbours, and two virtual nodes represent the top and bottom edges + of the grid. Percolation is detected the moment those two virtual nodes become connected. +

+

+ This makes each update fast and scalable even for larger grids. +

+
+ +
+

Built with C, Raylib, and WebAssembly

+
+
+ + + + + diff --git a/projects/percolation/index.js b/projects/percolation/index.js new file mode 100644 index 0000000..e64143d --- /dev/null +++ b/projects/percolation/index.js @@ -0,0 +1,10120 @@ +// include: shell.js +// include: minimum_runtime_check.js +(function() { + // "30.0.0" -> 300000 + function humanReadableVersionToPacked(str) { + str = str.split('-')[0]; // Remove any trailing part from e.g. "12.53.3-alpha" + var vers = str.split('.').slice(0, 3); + while(vers.length < 3) vers.push('00'); + vers = vers.map((n, i, arr) => n.padStart(2, '0')); + return vers.join(''); + } + // 300000 -> "30.0.0" + var packedVersionToHumanReadable = n => [n / 10000 | 0, (n / 100 | 0) % 100, n % 100].join('.'); + + var TARGET_NOT_SUPPORTED = 2147483647; + + // Note: We use a typeof check here instead of optional chaining using + // globalThis because older browsers might not have globalThis defined. + var currentNodeVersion = typeof process !== 'undefined' && process.versions?.node ? humanReadableVersionToPacked(process.versions.node) : TARGET_NOT_SUPPORTED; + if (currentNodeVersion < 160000) { + throw new Error(`This emscripten-generated code requires node v${ packedVersionToHumanReadable(160000) } (detected v${packedVersionToHumanReadable(currentNodeVersion)})`); + } + + var userAgent = typeof navigator !== 'undefined' && navigator.userAgent; + if (!userAgent) { + return; + } + + var currentSafariVersion = userAgent.includes("Safari/") && !userAgent.includes("Chrome/") && userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/) ? humanReadableVersionToPacked(userAgent.match(/Version\/(\d+\.?\d*\.?\d*)/)[1]) : TARGET_NOT_SUPPORTED; + if (currentSafariVersion < 150000) { + throw new Error(`This emscripten-generated code requires Safari v${ packedVersionToHumanReadable(150000) } (detected v${currentSafariVersion})`); + } + + var currentFirefoxVersion = userAgent.match(/Firefox\/(\d+(?:\.\d+)?)/) ? parseFloat(userAgent.match(/Firefox\/(\d+(?:\.\d+)?)/)[1]) : TARGET_NOT_SUPPORTED; + if (currentFirefoxVersion < 79) { + throw new Error(`This emscripten-generated code requires Firefox v79 (detected v${currentFirefoxVersion})`); + } + + var currentChromeVersion = userAgent.match(/Chrome\/(\d+(?:\.\d+)?)/) ? parseFloat(userAgent.match(/Chrome\/(\d+(?:\.\d+)?)/)[1]) : TARGET_NOT_SUPPORTED; + if (currentChromeVersion < 85) { + throw new Error(`This emscripten-generated code requires Chrome v85 (detected v${currentChromeVersion})`); + } +})(); + +// end include: minimum_runtime_check.js +// The Module object: Our interface to the outside world. We import +// and export values on it. There are various ways Module can be used: +// 1. Not defined. We create it here +// 2. A function parameter, function(moduleArg) => Promise +// 3. pre-run appended it, var Module = {}; ..generated code.. +// 4. External script tag defines var Module. +// We need to check if Module already exists (e.g. case 3 above). +// Substitution will be replaced with actual code on later stage of the build, +// this way Closure Compiler will not mangle it (e.g. case 4. above). +// Note that if you want to run closure, and also to use Module +// after the generated code, you will need to define var Module = {}; +// before the code. Then that object will be used in the code, and you +// can continue to use Module afterwards as well. +var Module = typeof Module != 'undefined' ? Module : {}; + +// Determine the runtime environment we are in. You can customize this by +// setting the ENVIRONMENT setting at compile time (see settings.js). + +// Attempt to auto-detect the environment +var ENVIRONMENT_IS_WEB = !!globalThis.window; +var ENVIRONMENT_IS_WORKER = !!globalThis.WorkerGlobalScope; +// N.b. Electron.js environment is simultaneously a NODE-environment, but +// also a web environment. +var ENVIRONMENT_IS_NODE = globalThis.process?.versions?.node && globalThis.process?.type != 'renderer'; +var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; + +// --pre-jses are emitted after the Module integration code, so that they can +// refer to Module (if they choose; they can also define Module) + + +var arguments_ = []; +var thisProgram = './this.program'; +var quit_ = (status, toThrow) => { + throw toThrow; +}; + +// In MODULARIZE mode _scriptName needs to be captured already at the very top of the page immediately when the page is parsed, so it is generated there +// before the page load. In non-MODULARIZE modes generate it here. +var _scriptName = globalThis.document?.currentScript?.src; + +if (typeof __filename != 'undefined') { // Node + _scriptName = __filename; +} else +if (ENVIRONMENT_IS_WORKER) { + _scriptName = self.location.href; +} + +// `/` 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) { + const isNode = globalThis.process?.versions?.node && globalThis.process?.type != 'renderer'; + if (!isNode) 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?)'); + + // These modules will usually be used on Node.js. Load them eagerly to avoid + // the complexity of lazy-loading. + var fs = require('node:fs'); + + scriptDirectory = __dirname + '/'; + +// include: node_shell_read.js +readBinary = (filename) => { + // We need to re-wrap `file://` strings to URLs. + filename = isFileURI(filename) ? new URL(filename) : filename; + var ret = fs.readFileSync(filename); + assert(Buffer.isBuffer(ret)); + return ret; +}; + +readAsync = async (filename, binary = true) => { + // See the comment in the `readBinary` function. + filename = isFileURI(filename) ? new URL(filename) : filename; + var ret = fs.readFileSync(filename, binary ? undefined : 'utf8'); + assert(binary ? Buffer.isBuffer(ret) : typeof ret == 'string'); + return ret; +}; +// end include: node_shell_read.js + if (process.argv.length > 1) { + thisProgram = process.argv[1].replace(/\\/g, '/'); + } + + arguments_ = process.argv.slice(2); + + // MODULARIZE will export the module in the proper place outside, we don't need to export here + if (typeof module != 'undefined') { + module['exports'] = Module; + } + + quit_ = (status, toThrow) => { + process.exitCode = status; + throw toThrow; + }; + +} else +if (ENVIRONMENT_IS_SHELL) { + +} 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) { + try { + scriptDirectory = new URL('.', _scriptName).href; // includes trailing slash + } catch { + // Must be a `blob:` or `data:` URL (e.g. `blob:http://site.com/etc/etc`), we cannot + // infer anything from them. + } + + if (!(globalThis.window || globalThis.WorkerGlobalScope)) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); + + { +// include: web_or_worker_shell_read.js +if (ENVIRONMENT_IS_WORKER) { + readBinary = (url) => { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.responseType = 'arraybuffer'; + xhr.send(null); + return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response)); + }; + } + + readAsync = async (url) => { + // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url. + // See https://github.com/github/fetch/pull/92#issuecomment-140665932 + // Cordova or Electron apps are typically loaded from a file:// url. + // So use XHR on webview if URL is a file URL. + if (isFileURI(url)) { + return new Promise((resolve, reject) => { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, true); + xhr.responseType = 'arraybuffer'; + xhr.onload = () => { + if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0 + resolve(xhr.response); + return; + } + reject(xhr.status); + }; + xhr.onerror = reject; + xhr.send(null); + }); + } + var response = await fetch(url, { credentials: 'same-origin' }); + if (response.ok) { + return response.arrayBuffer(); + } + throw new Error(response.status + ' : ' + response.url); + }; +// end include: web_or_worker_shell_read.js + } +} else +{ + throw new Error('environment detection error'); +} + +var out = console.log.bind(console); +var err = console.error.bind(console); + +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'; + +// perform assertions in shell.js after we set up out() and err(), as otherwise +// if an assertion fails it cannot print the message + +assert(!ENVIRONMENT_IS_SHELL, 'shell environment detected but not enabled at build time. Add `shell` to `-sENVIRONMENT` to enable.'); + +// end include: shell.js + +// include: preamble.js +// === Preamble library stuff === + +// Documentation for the public APIs defined in this file must be updated in: +// site/source/docs/api_reference/preamble.js.rst +// A prebuilt local version of the documentation is available at: +// site/build/text/docs/api_reference/preamble.js.txt +// You can also build docs locally as HTML or other formats in site/ +// An online HTML version (which may be of a different version of Emscripten) +// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html + +var wasmBinary; + +if (!globalThis.WebAssembly) { + err('no native wasm support detected'); +} + +// Wasm globals + +//======================================== +// 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 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. + +/** + * Indicates whether filename is delivered via file protocol (as opposed to http/https) + * @noinline + */ +var isFileURI = (filename) => filename.startsWith('file://'); + +// include: runtime_common.js +// include: runtime_stack_check.js +// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode. +function writeStackCookie() { + var max = _emscripten_stack_get_end(); + assert((max & 3) == 0); + // If the stack ends at address zero we write our cookies 4 bytes into the + // stack. This prevents interference with SAFE_HEAP and ASAN which also + // monitor writes to address zero. + if (max == 0) { + max += 4; + } + // The stack grow downwards towards _emscripten_stack_get_end. + // We write cookies to the final two words in the stack and detect if they are + // ever overwritten. + HEAPU32[((max)>>2)] = 0x02135467; + HEAPU32[(((max)+(4))>>2)] = 0x89BACDFE; + // Also test the global address 0 for integrity. + HEAPU32[((0)>>2)] = 1668509029; +} + +function checkStackCookie() { + if (ABORT) return; + var max = _emscripten_stack_get_end(); + // See writeStackCookie(). + if (max == 0) { + max += 4; + } + var cookie1 = HEAPU32[((max)>>2)]; + var cookie2 = HEAPU32[(((max)+(4))>>2)]; + if (cookie1 != 0x02135467 || cookie2 != 0x89BACDFE) { + abort(`Stack overflow! Stack cookie has been overwritten at ${ptrToString(max)}, expected hex dwords 0x89BACDFE and 0x2135467, but received ${ptrToString(cookie2)} ${ptrToString(cookie1)}`); + } + // Also test the global address 0 for integrity. + if (HEAPU32[((0)>>2)] != 0x63736d65 /* 'emsc' */) { + abort('Runtime error: The application has corrupted its heap memory area (address zero)!'); + } +} +// end include: runtime_stack_check.js +// include: runtime_exceptions.js +// end include: runtime_exceptions.js +// include: runtime_debug.js +var runtimeDebug = true; // Switch to false at runtime to disable logging at the right times + +// Used by XXXXX_DEBUG settings to output debug messages. +function dbg(...args) { + if (!runtimeDebug && typeof runtimeDebug != 'undefined') return; + // TODO(sbc): Make this configurable somehow. Its not always convenient for + // logging to show up as warnings. + console.warn(...args); +} + +// Endianness check +(() => { + var h16 = new Int16Array(1); + var h8 = new Int8Array(h16.buffer); + h16[0] = 0x6373; + if (h8[0] !== 0x73 || h8[1] !== 0x63) abort('Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)'); +})(); + +function consumedModuleProp(prop) { + if (!Object.getOwnPropertyDescriptor(Module, prop)) { + Object.defineProperty(Module, prop, { + configurable: true, + set() { + abort(`Attempt to set \`Module.${prop}\` after it has already been processed. This can happen, for example, when code is injected via '--post-js' rather than '--pre-js'`); + + } + }); + } +} + +function makeInvalidEarlyAccess(name) { + return () => assert(false, `call to '${name}' via reference taken before Wasm module initialization`); + +} + +function ignoredModuleProp(prop) { + if (Object.getOwnPropertyDescriptor(Module, prop)) { + abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`); + } +} + +// forcing the filesystem exports a few things by default +function isExportedByForceFilesystem(name) { + return name === 'FS_createPath' || + name === 'FS_createDataFile' || + name === 'FS_createPreloadedFile' || + name === 'FS_preloadFile' || + name === 'FS_unlink' || + name === 'addRunDependency' || + // The old FS has some functionality that WasmFS lacks. + name === 'FS_createLazyFile' || + name === 'FS_createDevice' || + name === 'removeRunDependency'; +} + +/** + * Intercept access to a symbols in the global symbol. This enables us to give + * informative warnings/errors when folks attempt to use symbols they did not + * include in their build, or no symbols that no longer exist. + * + * We don't define this in MODULARIZE mode since in that mode emscripten symbols + * are never placed in the global scope. + */ +function hookGlobalSymbolAccess(sym, func) { + if (!Object.getOwnPropertyDescriptor(globalThis, sym)) { + Object.defineProperty(globalThis, sym, { + configurable: true, + get() { + func(); + return undefined; + } + }); + } +} + +function missingGlobal(sym, msg) { + hookGlobalSymbolAccess(sym, () => { + warnOnce(`\`${sym}\` is no 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); + }, + }); + } +} + +// end include: runtime_debug.js +// Memory management +var +/** @type {!Int8Array} */ + HEAP8, +/** @type {!Uint8Array} */ + HEAPU8, +/** @type {!Int16Array} */ + HEAP16, +/** @type {!Uint16Array} */ + HEAPU16, +/** @type {!Int32Array} */ + HEAP32, +/** @type {!Uint32Array} */ + HEAPU32, +/** @type {!Float32Array} */ + HEAPF32, +/** @type {!Float64Array} */ + HEAPF64; + +// BigInt64Array type is not correctly defined in closure +var +/** not-@type {!BigInt64Array} */ + HEAP64, +/* BigUint64Array type is not correctly defined in closure +/** not-@type {!BigUint64Array} */ + HEAPU64; + +var runtimeInitialized = false; + + + +function updateMemoryViews() { + var b = wasmMemory.buffer; + HEAP8 = new Int8Array(b); + HEAP16 = new Int16Array(b); + HEAPU8 = new Uint8Array(b); + HEAPU16 = new Uint16Array(b); + HEAP32 = new Int32Array(b); + HEAPU32 = new Uint32Array(b); + HEAPF32 = new Float32Array(b); + HEAPF64 = new Float64Array(b); + HEAP64 = new BigInt64Array(b); + HEAPU64 = new BigUint64Array(b); +} + +// include: memoryprofiler.js +// end include: memoryprofiler.js +// end include: runtime_common.js +assert(globalThis.Int32Array && globalThis.Float64Array && Int32Array.prototype.subarray && Int32Array.prototype.set, + 'JS engine does not provide full typed array support'); + +function preRun() { + if (Module['preRun']) { + if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; + while (Module['preRun'].length) { + addOnPreRun(Module['preRun'].shift()); + } + } + consumedModuleProp('preRun'); + // Begin ATPRERUNS hooks + callRuntimeCallbacks(onPreRuns); + // End ATPRERUNS hooks +} + +function initRuntime() { + assert(!runtimeInitialized); + runtimeInitialized = true; + + checkStackCookie(); + + // Begin ATINITS hooks + if (!Module['noFSInit'] && !FS.initialized) FS.init(); +TTY.init(); + // End ATINITS hooks + + wasmExports['__wasm_call_ctors'](); + + // Begin ATPOSTCTORS hooks + FS.ignorePermissions = false; + // End ATPOSTCTORS hooks +} + +function preMain() { + checkStackCookie(); + // No ATMAINS hooks +} + +function postRun() { + checkStackCookie(); + // PThreads reuse the runtime from the main thread. + + if (Module['postRun']) { + if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; + while (Module['postRun'].length) { + addOnPostRun(Module['postRun'].shift()); + } + } + consumedModuleProp('postRun'); + + // Begin ATPOSTRUNS hooks + callRuntimeCallbacks(onPostRuns); + // End ATPOSTRUNS hooks +} + +/** @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; +} + +function createExportWrapper(name, nargs) { + return (...args) => { + assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`); + var f = wasmExports[name]; + assert(f, `exported native function \`${name}\` not found`); + // Only assert for too many arguments. Too few can be valid since the missing arguments will be zero filled. + assert(args.length <= nargs, `native function \`${name}\` called with ${args.length} args but expects ${nargs}`); + return f(...args); + }; +} + +var wasmBinaryFile; + +function findWasmBinary() { + return locateFile('index.wasm'); +} + +function getBinarySync(file) { + if (file == wasmBinaryFile && wasmBinary) { + return new Uint8Array(wasmBinary); + } + if (readBinary) { + return readBinary(file); + } + // Throwing a plain string here, even though it not normally advisable since + // this gets turning into an `abort` in instantiateArrayBuffer. + throw 'both async and sync fetching of the wasm failed'; +} + +async function getWasmBinary(binaryFile) { + // If we don't have the binary yet, load it asynchronously using readAsync. + if (!wasmBinary) { + // Fetch the binary using readAsync + try { + var response = await readAsync(binaryFile); + return new Uint8Array(response); + } catch { + // Fall back to getBinarySync below; + } + } + + // Otherwise, getBinarySync should be able to get it synchronously + return getBinarySync(binaryFile); +} + +async function instantiateArrayBuffer(binaryFile, imports) { + try { + var binary = await getWasmBinary(binaryFile); + var instance = await WebAssembly.instantiate(binary, imports); + return instance; + } catch (reason) { + err(`failed to asynchronously prepare wasm: ${reason}`); + + // Warn on some common problems. + if (isFileURI(binaryFile)) { + err(`warning: Loading from a file URI (${binaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`); + } + abort(reason); + } +} + +async function instantiateAsync(binary, binaryFile, imports) { + if (!binary + // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously. + && !isFileURI(binaryFile) + // Avoid instantiateStreaming() on Node.js environment for now, as while + // Node.js v18.1.0 implements it, it does not have a full fetch() + // implementation yet. + // + // Reference: + // https://github.com/emscripten-core/emscripten/pull/16917 + && !ENVIRONMENT_IS_NODE + ) { + try { + var response = fetch(binaryFile, { credentials: 'same-origin' }); + var instantiationResult = await WebAssembly.instantiateStreaming(response, imports); + return instantiationResult; + } catch (reason) { + // We expect the most common failure cause to be a bad MIME type for the binary, + // in which case falling back to ArrayBuffer instantiation should work. + err(`wasm streaming compile failed: ${reason}`); + err('falling back to ArrayBuffer instantiation'); + // fall back of instantiateArrayBuffer below + }; + } + return instantiateArrayBuffer(binaryFile, imports); +} + +function getWasmImports() { + // prepare imports + var imports = { + 'env': wasmImports, + 'wasi_snapshot_preview1': wasmImports, + }; + return imports; +} + +// Create the wasm instance. +// Receives the wasm imports, returns the exports. +async function createWasm() { + // Load the wasm module and create an instance of using native support in the JS engine. + // handle a generated wasm instance, receiving its exports and + // performing other necessary setup + /** @param {WebAssembly.Module=} module*/ + function receiveInstance(instance, module) { + wasmExports = instance.exports; + + assignWasmExports(wasmExports); + + updateMemoryViews(); + + removeRunDependency('wasm-instantiate'); + return wasmExports; + } + addRunDependency('wasm-instantiate'); + + // Prefer streaming instantiation if available. + // Async compilation can be confusing when an error on the page overwrites Module + // (for example, if the order of elements is wrong, and the one defining Module is + // later), so we save Module and check it later. + var trueModule = Module; + function receiveInstantiationResult(result) { + // 'result' is a ResultObject object which has both the module and instance. + // receiveInstance() will swap in the exports (to Module.asm) so they can be called + assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?'); + trueModule = null; + // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line. + // When the regression is fixed, can restore the above PTHREADS-enabled path. + return receiveInstance(result['instance']); + } + + var info = getWasmImports(); + + // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback + // to manually instantiate the Wasm module themselves. This allows pages to + // run the instantiation parallel to any other async startup actions they are + // performing. + // Also pthreads and wasm workers initialize the wasm instance through this + // path. + if (Module['instantiateWasm']) { + return new Promise((resolve, reject) => { + try { + Module['instantiateWasm'](info, (inst, mod) => { + resolve(receiveInstance(inst, mod)); + }); + } catch(e) { + err(`Module.instantiateWasm callback failed with error: ${e}`); + reject(e); + } + }); + } + + wasmBinaryFile ??= findWasmBinary(); + var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info); + var exports = receiveInstantiationResult(result); + return exports; +} + +// end include: preamble.js + +// Begin JS library code + + + class ExitStatus { + name = 'ExitStatus'; + constructor(status) { + this.message = `Program terminated with exit(${status})`; + this.status = status; + } + } + + var callRuntimeCallbacks = (callbacks) => { + while (callbacks.length > 0) { + // Pass the module as the first argument. + callbacks.shift()(Module); + } + }; + var onPostRuns = []; + var addOnPostRun = (cb) => onPostRuns.push(cb); + + var onPreRuns = []; + var addOnPreRun = (cb) => onPreRuns.push(cb); + + var runDependencies = 0; + + + var dependenciesFulfilled = null; + + var runDependencyTracking = { + }; + + var runDependencyWatcher = null; + var removeRunDependency = (id) => { + runDependencies--; + + Module['monitorRunDependencies']?.(runDependencies); + + assert(id, 'removeRunDependency requires an ID'); + assert(runDependencyTracking[id]); + delete runDependencyTracking[id]; + if (runDependencies == 0) { + if (runDependencyWatcher !== null) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + } + if (dependenciesFulfilled) { + var callback = dependenciesFulfilled; + dependenciesFulfilled = null; + callback(); // can add another dependenciesFulfilled + } + } + }; + + + var addRunDependency = (id) => { + runDependencies++; + + Module['monitorRunDependencies']?.(runDependencies); + + assert(id, 'addRunDependency requires an ID') + assert(!runDependencyTracking[id]); + runDependencyTracking[id] = 1; + if (runDependencyWatcher === null && globalThis.setInterval) { + // 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); + // Prevent this timer from keeping the runtime alive if nothing + // else is. + runDependencyWatcher.unref?.() + } + }; + + + + /** + * @param {number} ptr + * @param {string} type + */ + function getValue(ptr, type = 'i8') { + if (type.endsWith('*')) type = '*'; + switch (type) { + case 'i1': return HEAP8[ptr]; + case 'i8': return HEAP8[ptr]; + case 'i16': return HEAP16[((ptr)>>1)]; + case 'i32': return HEAP32[((ptr)>>2)]; + case 'i64': return HEAP64[((ptr)>>3)]; + case 'float': return HEAPF32[((ptr)>>2)]; + case 'double': return HEAPF64[((ptr)>>3)]; + case '*': return HEAPU32[((ptr)>>2)]; + default: abort(`invalid type for getValue: ${type}`); + } + } + + var noExitRuntime = true; + + var ptrToString = (ptr) => { + assert(typeof ptr === 'number', `ptrToString expects a number, got ${typeof ptr}`); + // Convert to 32-bit unsigned value + ptr >>>= 0; + return '0x' + ptr.toString(16).padStart(8, '0'); + }; + + + + /** + * @param {number} ptr + * @param {number} value + * @param {string} type + */ + function setValue(ptr, value, type = 'i8') { + if (type.endsWith('*')) type = '*'; + switch (type) { + case 'i1': HEAP8[ptr] = value; break; + case 'i8': HEAP8[ptr] = value; break; + case 'i16': HEAP16[((ptr)>>1)] = value; break; + case 'i32': HEAP32[((ptr)>>2)] = value; break; + case 'i64': HEAP64[((ptr)>>3)] = BigInt(value); break; + case 'float': HEAPF32[((ptr)>>2)] = value; break; + case 'double': HEAPF64[((ptr)>>3)] = value; break; + case '*': HEAPU32[((ptr)>>2)] = value; break; + default: abort(`invalid type for setValue: ${type}`); + } + } + + var stackRestore = (val) => __emscripten_stack_restore(val); + + var stackSave = () => _emscripten_stack_get_current(); + + var warnOnce = (text) => { + warnOnce.shown ||= {}; + if (!warnOnce.shown[text]) { + warnOnce.shown[text] = 1; + if (ENVIRONMENT_IS_NODE) text = 'warning: ' + text; + err(text); + } + }; + + + + var UTF8Decoder = globalThis.TextDecoder && new TextDecoder(); + + var findStringEnd = (heapOrArray, idx, maxBytesToRead, ignoreNul) => { + var maxIdx = idx + maxBytesToRead; + if (ignoreNul) return maxIdx; + // TextDecoder needs to know the byte length in advance, it doesn't stop on + // null terminator by itself. + // As a tiny code save trick, compare idx against maxIdx using a negation, + // so that maxBytesToRead=undefined/NaN means Infinity. + while (heapOrArray[idx] && !(idx >= maxIdx)) ++idx; + return idx; + }; + + + /** + * 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 + * @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character. + * @return {string} + */ + var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead, ignoreNul) => { + + var endPtr = findStringEnd(heapOrArray, idx, maxBytesToRead, ignoreNul); + + // When using conditional TextDecoder, skip it for short strings as the overhead of the native call is not worth it. + if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) { + return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr)); + } + var str = ''; + 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. + * @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character. + * @return {string} + */ + var UTF8ToString = (ptr, maxBytesToRead, ignoreNul) => { + assert(typeof ptr == 'number', `UTF8ToString expects a number (got ${typeof ptr})`); + return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead, ignoreNul) : ''; + }; + var ___assert_fail = (condition, filename, line, func) => + abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']); + + var PATH = { + isAbs:(path) => path.charAt(0) === '/', + splitPath:(filename) => { + var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; + return splitPathRe.exec(filename).slice(1); + }, + normalizeArray:(parts, allowAboveRoot) => { + // if the path tries to go above the root, `up` ends up > 0 + var up = 0; + for (var i = parts.length - 1; i >= 0; i--) { + var last = parts[i]; + if (last === '.') { + parts.splice(i, 1); + } else if (last === '..') { + parts.splice(i, 1); + up++; + } else if (up) { + parts.splice(i, 1); + up--; + } + } + // if the path is allowed to go above the root, restore leading ..s + if (allowAboveRoot) { + for (; up; up--) { + parts.unshift('..'); + } + } + return parts; + }, + normalize:(path) => { + var isAbsolute = PATH.isAbs(path), + trailingSlash = path.slice(-1) === '/'; + // Normalize the path + path = PATH.normalizeArray(path.split('/').filter((p) => !!p), !isAbsolute).join('/'); + if (!path && !isAbsolute) { + path = '.'; + } + if (path && trailingSlash) { + path += '/'; + } + return (isAbsolute ? '/' : '') + path; + }, + dirname:(path) => { + var result = PATH.splitPath(path), + root = result[0], + dir = result[1]; + if (!root && !dir) { + // No dirname whatsoever + return '.'; + } + if (dir) { + // It has a dirname, strip trailing slash + dir = dir.slice(0, -1); + } + return root + dir; + }, + basename:(path) => path && path.match(/([^\/]+|\/)\/*$/)[1], +join:(...paths) => PATH.normalize(paths.join('/')), +join2:(l, r) => PATH.normalize(l + '/' + r), +}; + +var initRandomFill = () => { + // This block is not needed on v19+ since crypto.getRandomValues is builtin + if (ENVIRONMENT_IS_NODE) { + var nodeCrypto = require('node:crypto'); + return (view) => nodeCrypto.randomFillSync(view); + } + + return (view) => crypto.getRandomValues(view); + }; +var randomFill = (view) => { + // Lazily init on the first invocation. + (randomFill = initRandomFill())(view); + }; + + + +var PATH_FS = { +resolve:(...args) => { + var resolvedPath = '', + resolvedAbsolute = false; + for (var i = args.length - 1; i >= -1 && !resolvedAbsolute; i--) { + var path = (i >= 0) ? args[i] : FS.cwd(); + // Skip empty and invalid entries + if (typeof path != 'string') { + throw new TypeError('Arguments to path.resolve must be strings'); + } else if (!path) { + return ''; // an invalid portion invalidates the whole thing + } + resolvedPath = path + '/' + resolvedPath; + resolvedAbsolute = PATH.isAbs(path); + } + // At this point the path should be resolved to a full absolute path, but + // handle relative paths to be safe (might happen when process.cwd() fails) + resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter((p) => !!p), !resolvedAbsolute).join('/'); + return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; + }, +relative:(from, to) => { + from = PATH_FS.resolve(from).slice(1); + to = PATH_FS.resolve(to).slice(1); + function trim(arr) { + var start = 0; + for (; start < arr.length; start++) { + if (arr[start] !== '') break; + } + var end = arr.length - 1; + for (; end >= 0; end--) { + if (arr[end] !== '') break; + } + if (start > end) return []; + return arr.slice(start, end - start + 1); + } + var fromParts = trim(from.split('/')); + var toParts = trim(to.split('/')); + var length = Math.min(fromParts.length, toParts.length); + var samePartsLength = length; + for (var i = 0; i < length; i++) { + if (fromParts[i] !== toParts[i]) { + samePartsLength = i; + break; + } + } + var outputParts = []; + for (var i = samePartsLength; i < fromParts.length; i++) { + outputParts.push('..'); + } + outputParts = outputParts.concat(toParts.slice(samePartsLength)); + return outputParts.join('/'); + }, +}; + + + +var FS_stdin_getChar_buffer = []; + +var lengthBytesUTF8 = (str) => { + var len = 0; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code + // unit, not a Unicode code point of the character! So decode + // UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var c = str.charCodeAt(i); // possibly a lead surrogate + if (c <= 0x7F) { + len++; + } else if (c <= 0x7FF) { + len += 2; + } else if (c >= 0xD800 && c <= 0xDFFF) { + len += 4; ++i; + } else { + len += 3; + } + } + return len; + }; + +var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => { + assert(typeof str === 'string', `stringToUTF8Array expects a string (got ${typeof str})`); + // Parameter maxBytesToWrite is not optional. Negative values, 0, null, + // undefined and false each don't write out any bytes. + if (!(maxBytesToWrite > 0)) + return 0; + + var startIdx = outIdx; + var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator. + for (var i = 0; i < str.length; ++i) { + // 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.codePointAt(i); + 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); + // Gotcha: if codePoint is over 0xFFFF, it is represented as a surrogate pair in UTF-16. + // We need to manually skip over the second code unit for correct iteration. + i++; + } + } + // Null-terminate the pointer to the buffer. + heap[outIdx] = 0; + return outIdx - startIdx; + }; +/** @type {function(string, boolean=, number=)} */ + var intArrayFromString = (stringy, dontAddNull, length) => { + var len = length > 0 ? length : lengthBytesUTF8(stringy)+1; + var u8array = new Array(len); + var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length); + if (dontAddNull) u8array.length = numBytesWritten; + return u8array; + }; + var FS_stdin_getChar = () => { + if (!FS_stdin_getChar_buffer.length) { + var result = null; + if (ENVIRONMENT_IS_NODE) { + // we will read data by chunks of BUFSIZE + var BUFSIZE = 256; + var buf = Buffer.alloc(BUFSIZE); + var bytesRead = 0; + + // For some reason we must suppress a closure warning here, even though + // fd definitely exists on process.stdin, and is even the proper way to + // get the fd of stdin, + // https://github.com/nodejs/help/issues/2136#issuecomment-523649904 + // This started to happen after moving this logic out of library_tty.js, + // so it is related to the surrounding code in some unclear manner. + /** @suppress {missingProperties} */ + var fd = process.stdin.fd; + + try { + bytesRead = fs.readSync(fd, buf, 0, BUFSIZE); + } catch(e) { + // Cross-platform differences: on Windows, reading EOF throws an + // exception, but on other OSes, reading EOF returns 0. Uniformize + // behavior by treating the EOF exception to return 0. + if (e.toString().includes('EOF')) bytesRead = 0; + else throw e; + } + + if (bytesRead > 0) { + result = buf.slice(0, bytesRead).toString('utf-8'); + } + } else + if (globalThis.window?.prompt) { + // Browser. + result = window.prompt('Input: '); // returns null on cancel + if (result !== null) { + result += '\n'; + } + } else + {} + if (!result) { + return null; + } + FS_stdin_getChar_buffer = intArrayFromString(result, true); + } + return FS_stdin_getChar_buffer.shift(); + }; + var TTY = { + ttys:[], + init() { + // https://github.com/emscripten-core/emscripten/pull/1555 + // if (ENVIRONMENT_IS_NODE) { + // // currently, FS.init does not distinguish if process.stdin is a file or TTY + // // device, it always assumes it's a TTY device. because of this, we're forcing + // // process.stdin to UTF8 encoding to at least make stdin reading compatible + // // with text files until FS.init can be refactored. + // process.stdin.setEncoding('utf8'); + // } + }, + shutdown() { + // https://github.com/emscripten-core/emscripten/pull/1555 + // if (ENVIRONMENT_IS_NODE) { + // // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)? + // // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation + // // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists? + // // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle + // // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call + // process.stdin.pause(); + // } + }, + register(dev, ops) { + TTY.ttys[dev] = { input: [], output: [], ops: ops }; + FS.registerDevice(dev, TTY.stream_ops); + }, + stream_ops:{ + open(stream) { + var tty = TTY.ttys[stream.node.rdev]; + if (!tty) { + throw new FS.ErrnoError(43); + } + stream.tty = tty; + stream.seekable = false; + }, + close(stream) { + // flush any pending line data + stream.tty.ops.fsync(stream.tty); + }, + fsync(stream) { + stream.tty.ops.fsync(stream.tty); + }, + read(stream, buffer, offset, length, pos /* ignored */) { + if (!stream.tty || !stream.tty.ops.get_char) { + throw new FS.ErrnoError(60); + } + var bytesRead = 0; + for (var i = 0; i < length; i++) { + var result; + try { + result = stream.tty.ops.get_char(stream.tty); + } catch (e) { + throw new FS.ErrnoError(29); + } + if (result === undefined && bytesRead === 0) { + throw new FS.ErrnoError(6); + } + if (result === null || result === undefined) break; + bytesRead++; + buffer[offset+i] = result; + } + if (bytesRead) { + stream.node.atime = Date.now(); + } + return bytesRead; + }, + write(stream, buffer, offset, length, pos) { + if (!stream.tty || !stream.tty.ops.put_char) { + throw new FS.ErrnoError(60); + } + try { + for (var i = 0; i < length; i++) { + stream.tty.ops.put_char(stream.tty, buffer[offset+i]); + } + } catch (e) { + throw new FS.ErrnoError(29); + } + if (length) { + stream.node.mtime = stream.node.ctime = Date.now(); + } + return i; + }, + }, + default_tty_ops:{ + get_char(tty) { + return FS_stdin_getChar(); + }, + put_char(tty, val) { + if (val === null || val === 10) { + out(UTF8ArrayToString(tty.output)); + tty.output = []; + } else { + if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle. + } + }, + fsync(tty) { + if (tty.output?.length > 0) { + out(UTF8ArrayToString(tty.output)); + tty.output = []; + } + }, + ioctl_tcgets(tty) { + // typical setting + return { + c_iflag: 25856, + c_oflag: 5, + c_cflag: 191, + c_lflag: 35387, + c_cc: [ + 0x03, 0x1c, 0x7f, 0x15, 0x04, 0x00, 0x01, 0x00, 0x11, 0x13, 0x1a, 0x00, + 0x12, 0x0f, 0x17, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + ] + }; + }, + ioctl_tcsets(tty, optional_actions, data) { + // currently just ignore + return 0; + }, + ioctl_tiocgwinsz(tty) { + return [24, 80]; + }, + }, + default_tty1_ops:{ + put_char(tty, val) { + if (val === null || val === 10) { + err(UTF8ArrayToString(tty.output)); + tty.output = []; + } else { + if (val != 0) tty.output.push(val); + } + }, + fsync(tty) { + if (tty.output?.length > 0) { + err(UTF8ArrayToString(tty.output)); + tty.output = []; + } + }, + }, + }; + + + var mmapAlloc = (size) => { + abort('internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported'); + }; + var MEMFS = { + ops_table:null, + mount(mount) { + return MEMFS.createNode(null, '/', 16895, 0); + }, + createNode(parent, name, mode, dev) { + if (FS.isBlkdev(mode) || FS.isFIFO(mode)) { + // not supported + throw new FS.ErrnoError(63); + } + MEMFS.ops_table ||= { + dir: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr, + lookup: MEMFS.node_ops.lookup, + mknod: MEMFS.node_ops.mknod, + rename: MEMFS.node_ops.rename, + unlink: MEMFS.node_ops.unlink, + rmdir: MEMFS.node_ops.rmdir, + readdir: MEMFS.node_ops.readdir, + symlink: MEMFS.node_ops.symlink + }, + stream: { + llseek: MEMFS.stream_ops.llseek + } + }, + file: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr + }, + stream: { + llseek: MEMFS.stream_ops.llseek, + read: MEMFS.stream_ops.read, + write: MEMFS.stream_ops.write, + mmap: MEMFS.stream_ops.mmap, + msync: MEMFS.stream_ops.msync + } + }, + link: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr, + readlink: MEMFS.node_ops.readlink + }, + stream: {} + }, + chrdev: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr + }, + stream: FS.chrdev_stream_ops + } + }; + var node = FS.createNode(parent, name, mode, dev); + if (FS.isDir(node.mode)) { + node.node_ops = MEMFS.ops_table.dir.node; + node.stream_ops = MEMFS.ops_table.dir.stream; + node.contents = {}; + } else if (FS.isFile(node.mode)) { + node.node_ops = MEMFS.ops_table.file.node; + node.stream_ops = MEMFS.ops_table.file.stream; + // The actual number of bytes used in the typed array, as opposed to + // contents.length which gives the whole capacity. + node.usedBytes = 0; + // The byte data of the file is stored in a typed array. + // Note: typed arrays are not resizable like normal JS arrays are, so + // there is a small penalty involved for appending file writes that + // continuously grow a file similar to std::vector capacity vs used. + node.contents = MEMFS.emptyFileContents ??= new Uint8Array(0); + } else if (FS.isLink(node.mode)) { + node.node_ops = MEMFS.ops_table.link.node; + node.stream_ops = MEMFS.ops_table.link.stream; + } else if (FS.isChrdev(node.mode)) { + node.node_ops = MEMFS.ops_table.chrdev.node; + node.stream_ops = MEMFS.ops_table.chrdev.stream; + } + node.atime = node.mtime = node.ctime = Date.now(); + // add the new node to the parent + if (parent) { + parent.contents[name] = node; + parent.atime = parent.mtime = parent.ctime = node.atime; + } + return node; + }, + getFileDataAsTypedArray(node) { + assert(FS.isFile(node.mode), 'getFileDataAsTypedArray called on non-file'); + return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes. + }, + expandFileStorage(node, newCapacity) { + var prevCapacity = node.contents.length; + if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough. + // Don't expand strictly to the given requested limit if it's only a very + // small increase, but instead geometrically grow capacity. + // For small filesizes (<1MB), perform size*2 geometric increase, but for + // large sizes, do a much more conservative size*1.125 increase to avoid + // overshooting the allocation cap by a very large margin. + var CAPACITY_DOUBLING_MAX = 1024 * 1024; + newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0); + if (prevCapacity) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding. + var oldContents = MEMFS.getFileDataAsTypedArray(node); + node.contents = new Uint8Array(newCapacity); // Allocate new storage. + node.contents.set(oldContents); + }, + resizeFileStorage(node, newSize) { + if (node.usedBytes == newSize) return; + var oldContents = node.contents; + node.contents = new Uint8Array(newSize); // Allocate new storage. + node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage. + node.usedBytes = newSize; + }, + node_ops:{ + getattr(node) { + var attr = {}; + // device numbers reuse inode numbers. + attr.dev = FS.isChrdev(node.mode) ? node.id : 1; + attr.ino = node.id; + attr.mode = node.mode; + attr.nlink = 1; + attr.uid = 0; + attr.gid = 0; + attr.rdev = node.rdev; + if (FS.isDir(node.mode)) { + attr.size = 4096; + } else if (FS.isFile(node.mode)) { + attr.size = node.usedBytes; + } else if (FS.isLink(node.mode)) { + attr.size = node.link.length; + } else { + attr.size = 0; + } + attr.atime = new Date(node.atime); + attr.mtime = new Date(node.mtime); + attr.ctime = new Date(node.ctime); + // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize), + // but this is not required by the standard. + attr.blksize = 4096; + attr.blocks = Math.ceil(attr.size / attr.blksize); + return attr; + }, + setattr(node, attr) { + for (const key of ["mode", "atime", "mtime", "ctime"]) { + if (attr[key] != null) { + node[key] = attr[key]; + } + } + if (attr.size !== undefined) { + MEMFS.resizeFileStorage(node, attr.size); + } + }, + lookup(parent, name) { + throw new FS.ErrnoError(44); + }, + mknod(parent, name, mode, dev) { + return MEMFS.createNode(parent, name, mode, dev); + }, + rename(old_node, new_dir, new_name) { + var new_node; + try { + new_node = FS.lookupNode(new_dir, new_name); + } catch (e) {} + if (new_node) { + if (FS.isDir(old_node.mode)) { + // if we're overwriting a directory at new_name, make sure it's empty. + for (var i in new_node.contents) { + throw new FS.ErrnoError(55); + } + } + FS.hashRemoveNode(new_node); + } + // do the internal rewiring + delete old_node.parent.contents[old_node.name]; + new_dir.contents[new_name] = old_node; + old_node.name = new_name; + new_dir.ctime = new_dir.mtime = old_node.parent.ctime = old_node.parent.mtime = Date.now(); + }, + unlink(parent, name) { + delete parent.contents[name]; + parent.ctime = parent.mtime = Date.now(); + }, + rmdir(parent, name) { + var node = FS.lookupNode(parent, name); + for (var i in node.contents) { + throw new FS.ErrnoError(55); + } + delete parent.contents[name]; + parent.ctime = parent.mtime = Date.now(); + }, + readdir(node) { + return ['.', '..', ...Object.keys(node.contents)]; + }, + symlink(parent, newname, oldpath) { + var node = MEMFS.createNode(parent, newname, 0o777 | 40960, 0); + node.link = oldpath; + return node; + }, + readlink(node) { + if (!FS.isLink(node.mode)) { + throw new FS.ErrnoError(28); + } + return node.link; + }, + }, + stream_ops:{ + read(stream, buffer, offset, length, position) { + var contents = stream.node.contents; + if (position >= stream.node.usedBytes) return 0; + var size = Math.min(stream.node.usedBytes - position, length); + assert(size >= 0); + buffer.set(contents.subarray(position, position + size), offset); + return size; + }, + write(stream, buffer, offset, length, position, canOwn) { + assert(buffer.subarray, 'FS.write expects a TypedArray'); + // If the buffer is located in main memory (HEAP), and if + // memory can grow, we can't hold on to references of the + // memory buffer, as they may get invalidated. That means we + // need to copy its contents. + if (buffer.buffer === HEAP8.buffer) { + canOwn = false; + } + + if (!length) return 0; + var node = stream.node; + node.mtime = node.ctime = Date.now(); + + if (canOwn) { + assert(position === 0, 'canOwn must imply no weird position inside the file'); + node.contents = buffer.subarray(offset, offset + length); + node.usedBytes = length; + } else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data. + node.contents = buffer.slice(offset, offset + length); + node.usedBytes = length; + } else { + MEMFS.expandFileStorage(node, position+length); + // Use typed array write which is available. + node.contents.set(buffer.subarray(offset, offset + length), position); + node.usedBytes = Math.max(node.usedBytes, position + length); + } + return length; + }, + llseek(stream, offset, whence) { + var position = offset; + if (whence === 1) { + position += stream.position; + } else if (whence === 2) { + if (FS.isFile(stream.node.mode)) { + position += stream.node.usedBytes; + } + } + if (position < 0) { + throw new FS.ErrnoError(28); + } + return position; + }, + mmap(stream, length, position, prot, flags) { + if (!FS.isFile(stream.node.mode)) { + throw new FS.ErrnoError(43); + } + var ptr; + var allocated; + var contents = stream.node.contents; + // Only make a new copy when MAP_PRIVATE is specified. + if (!(flags & 2) && contents.buffer === HEAP8.buffer) { + // We can't emulate MAP_SHARED when the file is not backed by the + // buffer we're mapping to (e.g. the HEAP buffer). + allocated = false; + ptr = contents.byteOffset; + } else { + allocated = true; + ptr = mmapAlloc(length); + if (!ptr) { + throw new FS.ErrnoError(48); + } + if (contents) { + // Try to avoid unnecessary slices. + if (position > 0 || position + length < contents.length) { + if (contents.subarray) { + contents = contents.subarray(position, position + length); + } else { + contents = Array.prototype.slice.call(contents, position, position + length); + } + } + HEAP8.set(contents, ptr); + } + } + return { ptr, allocated }; + }, + msync(stream, buffer, offset, length, mmapFlags) { + MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false); + // should we check if bytesWritten and length are the same? + return 0; + }, + }, + }; + + var FS_modeStringToFlags = (str) => { + if (typeof str != 'string') return str; + var flagModes = { + 'r': 0, + 'r+': 2, + 'w': 512 | 64 | 1, + 'w+': 512 | 64 | 2, + 'a': 1024 | 64 | 1, + 'a+': 1024 | 64 | 2, + }; + var flags = flagModes[str]; + if (typeof flags == 'undefined') { + throw new Error(`Unknown file open mode: ${str}`); + } + return flags; + }; + + var FS_fileDataToTypedArray = (data) => { + if (typeof data == 'string') { + data = intArrayFromString(data, true); + } + if (!data.subarray) { + data = new Uint8Array(data); + } + return data; + }; + + var FS_getMode = (canRead, canWrite) => { + var mode = 0; + if (canRead) mode |= 292 | 73; + if (canWrite) mode |= 146; + return mode; + }; + + + + + var strError = (errno) => UTF8ToString(_strerror(errno)); + + var ERRNO_CODES = { + 'EPERM': 63, + 'ENOENT': 44, + 'ESRCH': 71, + 'EINTR': 27, + 'EIO': 29, + 'ENXIO': 60, + 'E2BIG': 1, + 'ENOEXEC': 45, + 'EBADF': 8, + 'ECHILD': 12, + 'EAGAIN': 6, + 'EWOULDBLOCK': 6, + 'ENOMEM': 48, + 'EACCES': 2, + 'EFAULT': 21, + 'ENOTBLK': 105, + 'EBUSY': 10, + 'EEXIST': 20, + 'EXDEV': 75, + 'ENODEV': 43, + 'ENOTDIR': 54, + 'EISDIR': 31, + 'EINVAL': 28, + 'ENFILE': 41, + 'EMFILE': 33, + 'ENOTTY': 59, + 'ETXTBSY': 74, + 'EFBIG': 22, + 'ENOSPC': 51, + 'ESPIPE': 70, + 'EROFS': 69, + 'EMLINK': 34, + 'EPIPE': 64, + 'EDOM': 18, + 'ERANGE': 68, + 'ENOMSG': 49, + 'EIDRM': 24, + 'ECHRNG': 106, + 'EL2NSYNC': 156, + 'EL3HLT': 107, + 'EL3RST': 108, + 'ELNRNG': 109, + 'EUNATCH': 110, + 'ENOCSI': 111, + 'EL2HLT': 112, + 'EDEADLK': 16, + 'ENOLCK': 46, + 'EBADE': 113, + 'EBADR': 114, + 'EXFULL': 115, + 'ENOANO': 104, + 'EBADRQC': 103, + 'EBADSLT': 102, + 'EDEADLOCK': 16, + 'EBFONT': 101, + 'ENOSTR': 100, + 'ENODATA': 116, + 'ETIME': 117, + 'ENOSR': 118, + 'ENONET': 119, + 'ENOPKG': 120, + 'EREMOTE': 121, + 'ENOLINK': 47, + 'EADV': 122, + 'ESRMNT': 123, + 'ECOMM': 124, + 'EPROTO': 65, + 'EMULTIHOP': 36, + 'EDOTDOT': 125, + 'EBADMSG': 9, + 'ENOTUNIQ': 126, + 'EBADFD': 127, + 'EREMCHG': 128, + 'ELIBACC': 129, + 'ELIBBAD': 130, + 'ELIBSCN': 131, + 'ELIBMAX': 132, + 'ELIBEXEC': 133, + 'ENOSYS': 52, + 'ENOTEMPTY': 55, + 'ENAMETOOLONG': 37, + 'ELOOP': 32, + 'EOPNOTSUPP': 138, + 'EPFNOSUPPORT': 139, + 'ECONNRESET': 15, + 'ENOBUFS': 42, + 'EAFNOSUPPORT': 5, + 'EPROTOTYPE': 67, + 'ENOTSOCK': 57, + 'ENOPROTOOPT': 50, + 'ESHUTDOWN': 140, + 'ECONNREFUSED': 14, + 'EADDRINUSE': 3, + 'ECONNABORTED': 13, + 'ENETUNREACH': 40, + 'ENETDOWN': 38, + 'ETIMEDOUT': 73, + 'EHOSTDOWN': 142, + 'EHOSTUNREACH': 23, + 'EINPROGRESS': 26, + 'EALREADY': 7, + 'EDESTADDRREQ': 17, + 'EMSGSIZE': 35, + 'EPROTONOSUPPORT': 66, + 'ESOCKTNOSUPPORT': 137, + 'EADDRNOTAVAIL': 4, + 'ENETRESET': 39, + 'EISCONN': 30, + 'ENOTCONN': 53, + 'ETOOMANYREFS': 141, + 'EUSERS': 136, + 'EDQUOT': 19, + 'ESTALE': 72, + 'ENOTSUP': 138, + 'ENOMEDIUM': 148, + 'EILSEQ': 25, + 'EOVERFLOW': 61, + 'ECANCELED': 11, + 'ENOTRECOVERABLE': 56, + 'EOWNERDEAD': 62, + 'ESTRPIPE': 135, + }; + + var asyncLoad = async (url) => { + var arrayBuffer = await readAsync(url); + assert(arrayBuffer, `Loading data file "${url}" failed (no arrayBuffer).`); + return new Uint8Array(arrayBuffer); + }; + + + var FS_createDataFile = (...args) => FS.createDataFile(...args); + + var getUniqueRunDependency = (id) => { + var orig = id; + while (1) { + if (!runDependencyTracking[id]) return id; + id = orig + Math.random(); + } + }; + + + + var preloadPlugins = []; + var FS_handledByPreloadPlugin = async (byteArray, fullname) => { + // Ensure plugins are ready. + if (typeof Browser != 'undefined') Browser.init(); + + for (var plugin of preloadPlugins) { + if (plugin['canHandle'](fullname)) { + assert(plugin['handle'].constructor.name === 'AsyncFunction', 'Filesystem plugin handlers must be async functions (See #24914)') + return plugin['handle'](byteArray, fullname); + } + } + // If no plugin handled this file then return the original/unmodified + // byteArray. + return byteArray; + }; + var FS_preloadFile = async (parent, name, url, canRead, canWrite, dontCreateFile, canOwn, preFinish) => { + // TODO we should allow people to just pass in a complete filename instead + // of parent and name being that we just join them anyways + var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent; + var dep = getUniqueRunDependency(`cp ${fullname}`); // might have several active requests for the same fullname + addRunDependency(dep); + + try { + var byteArray = url; + if (typeof url == 'string') { + byteArray = await asyncLoad(url); + } + + byteArray = await FS_handledByPreloadPlugin(byteArray, fullname); + preFinish?.(); + if (!dontCreateFile) { + FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn); + } + } finally { + removeRunDependency(dep); + } + }; + var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => { + FS_preloadFile(parent, name, url, canRead, canWrite, dontCreateFile, canOwn, preFinish).then(onload).catch(onerror); + }; + var FS = { + root:null, + mounts:[], + devices:{ + }, + streams:[], + nextInode:1, + nameTable:null, + currentPath:"/", + initialized:false, + ignorePermissions:true, + filesystems:null, + syncFSRequests:0, + ErrnoError:class extends Error { + name = 'ErrnoError'; + // We set the `name` property to be able to identify `FS.ErrnoError` + // - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway. + // - when using PROXYFS, an error can come from an underlying FS + // as different FS objects have their own FS.ErrnoError each, + // the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs. + // we'll use the reliable test `err.name == "ErrnoError"` instead + constructor(errno) { + super(runtimeInitialized ? strError(errno) : ''); + this.errno = errno; + for (var key in ERRNO_CODES) { + if (ERRNO_CODES[key] === errno) { + this.code = key; + break; + } + } + } + }, + FSStream:class { + shared = {}; + get object() { + return this.node; + } + set object(val) { + this.node = val; + } + get isRead() { + return (this.flags & 2097155) !== 1; + } + get isWrite() { + return (this.flags & 2097155) !== 0; + } + get isAppend() { + return (this.flags & 1024); + } + get flags() { + return this.shared.flags; + } + set flags(val) { + this.shared.flags = val; + } + get position() { + return this.shared.position; + } + set position(val) { + this.shared.position = val; + } + }, + FSNode:class { + node_ops = {}; + stream_ops = {}; + readMode = 292 | 73; + writeMode = 146; + mounted = null; + constructor(parent, name, mode, rdev) { + if (!parent) { + parent = this; // root node sets parent to itself + } + this.parent = parent; + this.mount = parent.mount; + this.id = FS.nextInode++; + this.name = name; + this.mode = mode; + this.rdev = rdev; + this.atime = this.mtime = this.ctime = Date.now(); + } + get read() { + return (this.mode & this.readMode) === this.readMode; + } + set read(val) { + val ? this.mode |= this.readMode : this.mode &= ~this.readMode; + } + get write() { + return (this.mode & this.writeMode) === this.writeMode; + } + set write(val) { + val ? this.mode |= this.writeMode : this.mode &= ~this.writeMode; + } + get isFolder() { + return FS.isDir(this.mode); + } + get isDevice() { + return FS.isChrdev(this.mode); + } + }, + lookupPath(path, opts = {}) { + if (!path) { + throw new FS.ErrnoError(44); + } + opts.follow_mount ??= true + + if (!PATH.isAbs(path)) { + path = FS.cwd() + '/' + path; + } + + // limit max consecutive symlinks to 40 (SYMLOOP_MAX). + linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) { + // split the absolute path + var parts = path.split('/').filter((p) => !!p); + + // start at the root + var current = FS.root; + var current_path = '/'; + + for (var i = 0; i < parts.length; i++) { + var islast = (i === parts.length-1); + if (islast && opts.parent) { + // stop resolving + break; + } + + if (parts[i] === '.') { + continue; + } + + if (parts[i] === '..') { + current_path = PATH.dirname(current_path); + if (FS.isRoot(current)) { + path = current_path + '/' + parts.slice(i + 1).join('/'); + // We're making progress here, don't let many consecutive ..'s + // lead to ELOOP + nlinks--; + continue linkloop; + } else { + current = current.parent; + } + continue; + } + + current_path = PATH.join2(current_path, parts[i]); + try { + current = FS.lookupNode(current, parts[i]); + } catch (e) { + // if noent_okay is true, suppress a ENOENT in the last component + // and return an object with an undefined node. This is needed for + // resolving symlinks in the path when creating a file. + if ((e?.errno === 44) && islast && opts.noent_okay) { + return { path: current_path }; + } + throw e; + } + + // jump to the mount's root node if this is a mountpoint + if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) { + current = current.mounted.root; + } + + // by default, lookupPath will not follow a symlink if it is the final path component. + // setting opts.follow = true will override this behavior. + if (FS.isLink(current.mode) && (!islast || opts.follow)) { + if (!current.node_ops.readlink) { + throw new FS.ErrnoError(52); + } + var link = current.node_ops.readlink(current); + if (!PATH.isAbs(link)) { + link = PATH.dirname(current_path) + '/' + link; + } + path = link + '/' + parts.slice(i + 1).join('/'); + continue linkloop; + } + } + return { path: current_path, node: current }; + } + throw new FS.ErrnoError(32); + }, + getPath(node) { + var path; + while (true) { + if (FS.isRoot(node)) { + var mount = node.mount.mountpoint; + if (!path) return mount; + return mount[mount.length-1] !== '/' ? `${mount}/${path}` : mount + path; + } + path = path ? `${node.name}/${path}` : node.name; + node = node.parent; + } + }, + hashName(parentid, name) { + var hash = 0; + + for (var i = 0; i < name.length; i++) { + hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0; + } + return ((parentid + hash) >>> 0) % FS.nameTable.length; + }, + hashAddNode(node) { + var hash = FS.hashName(node.parent.id, node.name); + node.name_next = FS.nameTable[hash]; + FS.nameTable[hash] = node; + }, + hashRemoveNode(node) { + var hash = FS.hashName(node.parent.id, node.name); + if (FS.nameTable[hash] === node) { + FS.nameTable[hash] = node.name_next; + } else { + var current = FS.nameTable[hash]; + while (current) { + if (current.name_next === node) { + current.name_next = node.name_next; + break; + } + current = current.name_next; + } + } + }, + lookupNode(parent, name) { + var errCode = FS.mayLookup(parent); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + var hash = FS.hashName(parent.id, name); + for (var node = FS.nameTable[hash]; node; node = node.name_next) { + var nodeName = node.name; + if (node.parent.id === parent.id && nodeName === name) { + return node; + } + } + // if we failed to find it in the cache, call into the VFS + return FS.lookup(parent, name); + }, + createNode(parent, name, mode, rdev) { + assert(typeof parent == 'object') + var node = new FS.FSNode(parent, name, mode, rdev); + + FS.hashAddNode(node); + + return node; + }, + destroyNode(node) { + FS.hashRemoveNode(node); + }, + isRoot(node) { + return node === node.parent; + }, + isMountpoint(node) { + return !!node.mounted; + }, + isFile(mode) { + return (mode & 61440) === 32768; + }, + isDir(mode) { + return (mode & 61440) === 16384; + }, + isLink(mode) { + return (mode & 61440) === 40960; + }, + isChrdev(mode) { + return (mode & 61440) === 8192; + }, + isBlkdev(mode) { + return (mode & 61440) === 24576; + }, + isFIFO(mode) { + return (mode & 61440) === 4096; + }, + isSocket(mode) { + return (mode & 49152) === 49152; + }, + flagsToPermissionString(flag) { + var perms = ['r', 'w', 'rw'][flag & 3]; + if ((flag & 512)) { + perms += 'w'; + } + return perms; + }, + nodePermissions(node, perms) { + if (FS.ignorePermissions) { + return 0; + } + // return 0 if any user, group or owner bits are set. + if (perms.includes('r') && !(node.mode & 292)) { + return 2; + } + if (perms.includes('w') && !(node.mode & 146)) { + return 2; + } + if (perms.includes('x') && !(node.mode & 73)) { + return 2; + } + return 0; + }, + mayLookup(dir) { + if (!FS.isDir(dir.mode)) return 54; + var errCode = FS.nodePermissions(dir, 'x'); + if (errCode) return errCode; + if (!dir.node_ops.lookup) return 2; + return 0; + }, + mayCreate(dir, name) { + if (!FS.isDir(dir.mode)) { + return 54; + } + try { + var node = FS.lookupNode(dir, name); + return 20; + } catch (e) { + } + return FS.nodePermissions(dir, 'wx'); + }, + mayDelete(dir, name, isdir) { + var node; + try { + node = FS.lookupNode(dir, name); + } catch (e) { + return e.errno; + } + var errCode = FS.nodePermissions(dir, 'wx'); + if (errCode) { + return errCode; + } + if (isdir) { + if (!FS.isDir(node.mode)) { + return 54; + } + if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) { + return 10; + } + } else if (FS.isDir(node.mode)) { + return 31; + } + return 0; + }, + mayOpen(node, flags) { + if (!node) { + return 44; + } + if (FS.isLink(node.mode)) { + return 32; + } + var mode = FS.flagsToPermissionString(flags); + if (FS.isDir(node.mode)) { + // opening for write + // TODO: check for O_SEARCH? (== search for dir only) + if (mode !== 'r' || (flags & (512 | 64))) { + return 31; + } + } + return FS.nodePermissions(node, mode); + }, + checkOpExists(op, err) { + if (!op) { + throw new FS.ErrnoError(err); + } + return op; + }, + MAX_OPEN_FDS:4096, + nextfd() { + for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) { + if (!FS.streams[fd]) { + return fd; + } + } + throw new FS.ErrnoError(33); + }, + getStreamChecked(fd) { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(8); + } + return stream; + }, + getStream:(fd) => FS.streams[fd], + createStream(stream, fd = -1) { + assert(fd >= -1); + + // clone it, so we can return an instance of FSStream + stream = Object.assign(new FS.FSStream(), stream); + if (fd == -1) { + fd = FS.nextfd(); + } + stream.fd = fd; + FS.streams[fd] = stream; + return stream; + }, + closeStream(fd) { + FS.streams[fd] = null; + }, + dupStream(origStream, fd = -1) { + var stream = FS.createStream(origStream, fd); + stream.stream_ops?.dup?.(stream); + return stream; + }, + doSetAttr(stream, node, attr) { + var setattr = stream?.stream_ops.setattr; + var arg = setattr ? stream : node; + setattr ??= node.node_ops.setattr; + FS.checkOpExists(setattr, 63) + setattr(arg, attr); + }, + chrdev_stream_ops:{ + open(stream) { + var device = FS.getDevice(stream.node.rdev); + // override node's stream ops with the device's + stream.stream_ops = device.stream_ops; + // forward the open call + stream.stream_ops.open?.(stream); + }, + llseek() { + throw new FS.ErrnoError(70); + }, + }, + major:(dev) => ((dev) >> 8), + minor:(dev) => ((dev) & 0xff), + makedev:(ma, mi) => ((ma) << 8 | (mi)), + registerDevice(dev, ops) { + FS.devices[dev] = { stream_ops: ops }; + }, + getDevice:(dev) => FS.devices[dev], + getMounts(mount) { + var mounts = []; + var check = [mount]; + + while (check.length) { + var m = check.pop(); + + mounts.push(m); + + check.push(...m.mounts); + } + + return mounts; + }, + syncfs(populate, callback) { + if (typeof populate == 'function') { + callback = populate; + populate = false; + } + + FS.syncFSRequests++; + + if (FS.syncFSRequests > 1) { + err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`); + } + + var mounts = FS.getMounts(FS.root.mount); + var completed = 0; + + function doCallback(errCode) { + assert(FS.syncFSRequests > 0); + FS.syncFSRequests--; + return callback(errCode); + } + + function done(errCode) { + if (errCode) { + if (!done.errored) { + done.errored = true; + return doCallback(errCode); + } + return; + } + if (++completed >= mounts.length) { + doCallback(null); + } + }; + + // sync all mounts + for (var mount of mounts) { + if (mount.type.syncfs) { + mount.type.syncfs(mount, populate, done); + } else { + done(null); + } + } + }, + mount(type, opts, mountpoint) { + if (typeof type == 'string') { + // The filesystem was not included, and instead we have an error + // message stored in the variable. + throw type; + } + var root = mountpoint === '/'; + var pseudo = !mountpoint; + var node; + + if (root && FS.root) { + throw new FS.ErrnoError(10); + } else if (!root && !pseudo) { + var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); + + mountpoint = lookup.path; // use the absolute path + node = lookup.node; + + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(10); + } + + if (!FS.isDir(node.mode)) { + throw new FS.ErrnoError(54); + } + } + + var mount = { + type, + opts, + mountpoint, + mounts: [] + }; + + // create a root node for the fs + var mountRoot = type.mount(mount); + mountRoot.mount = mount; + mount.root = mountRoot; + + if (root) { + FS.root = mountRoot; + } else if (node) { + // set as a mountpoint + node.mounted = mount; + + // add the new mount to the current mount's children + if (node.mount) { + node.mount.mounts.push(mount); + } + } + + return mountRoot; + }, + unmount(mountpoint) { + var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); + + if (!FS.isMountpoint(lookup.node)) { + throw new FS.ErrnoError(28); + } + + // destroy the nodes for this mount, and all its child mounts + var node = lookup.node; + var mount = node.mounted; + var mounts = FS.getMounts(mount); + + for (var [hash, current] of Object.entries(FS.nameTable)) { + while (current) { + var next = current.name_next; + + if (mounts.includes(current.mount)) { + FS.destroyNode(current); + } + + current = next; + } + } + + // no longer a mountpoint + node.mounted = null; + + // remove this mount from the child mounts + var idx = node.mount.mounts.indexOf(mount); + assert(idx !== -1); + node.mount.mounts.splice(idx, 1); + }, + lookup(parent, name) { + return parent.node_ops.lookup(parent, name); + }, + mknod(path, mode, dev) { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + if (!name) { + throw new FS.ErrnoError(28); + } + if (name === '.' || name === '..') { + throw new FS.ErrnoError(20); + } + var errCode = FS.mayCreate(parent, name); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.mknod) { + throw new FS.ErrnoError(63); + } + return parent.node_ops.mknod(parent, name, mode, dev); + }, + statfs(path) { + return FS.statfsNode(FS.lookupPath(path, {follow: true}).node); + }, + statfsStream(stream) { + // We keep a separate statfsStream function because noderawfs overrides + // it. In noderawfs, stream.node is sometimes null. Instead, we need to + // look at stream.path. + return FS.statfsNode(stream.node); + }, + statfsNode(node) { + // NOTE: None of the defaults here are true. We're just returning safe and + // sane values. Currently nodefs and rawfs replace these defaults, + // other file systems leave them alone. + var rtn = { + bsize: 4096, + frsize: 4096, + blocks: 1e6, + bfree: 5e5, + bavail: 5e5, + files: FS.nextInode, + ffree: FS.nextInode - 1, + fsid: 42, + flags: 2, + namelen: 255, + }; + + if (node.node_ops.statfs) { + Object.assign(rtn, node.node_ops.statfs(node.mount.opts.root)); + } + return rtn; + }, + create(path, mode = 0o666) { + mode &= 4095; + mode |= 32768; + return FS.mknod(path, mode, 0); + }, + mkdir(path, mode = 0o777) { + mode &= 511 | 512; + mode |= 16384; + return FS.mknod(path, mode, 0); + }, + mkdirTree(path, mode) { + var dirs = path.split('/'); + var d = ''; + for (var dir of dirs) { + if (!dir) continue; + if (d || PATH.isAbs(path)) d += '/'; + d += dir; + try { + FS.mkdir(d, mode); + } catch(e) { + if (e.errno != 20) throw e; + } + } + }, + mkdev(path, mode, dev) { + if (typeof dev == 'undefined') { + dev = mode; + mode = 0o666; + } + mode |= 8192; + return FS.mknod(path, mode, dev); + }, + symlink(oldpath, newpath) { + if (!PATH_FS.resolve(oldpath)) { + throw new FS.ErrnoError(44); + } + var lookup = FS.lookupPath(newpath, { parent: true }); + var parent = lookup.node; + if (!parent) { + throw new FS.ErrnoError(44); + } + var newname = PATH.basename(newpath); + var errCode = FS.mayCreate(parent, newname); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.symlink) { + throw new FS.ErrnoError(63); + } + return parent.node_ops.symlink(parent, newname, oldpath); + }, + rename(old_path, new_path) { + var old_dirname = PATH.dirname(old_path); + var new_dirname = PATH.dirname(new_path); + var old_name = PATH.basename(old_path); + var new_name = PATH.basename(new_path); + // parents must exist + var lookup, old_dir, new_dir; + + // let the errors from non existent directories percolate up + lookup = FS.lookupPath(old_path, { parent: true }); + old_dir = lookup.node; + lookup = FS.lookupPath(new_path, { parent: true }); + new_dir = lookup.node; + + if (!old_dir || !new_dir) throw new FS.ErrnoError(44); + // need to be part of the same mount + if (old_dir.mount !== new_dir.mount) { + throw new FS.ErrnoError(75); + } + // source must exist + var old_node = FS.lookupNode(old_dir, old_name); + // old path should not be an ancestor of the new path + var relative = PATH_FS.relative(old_path, new_dirname); + if (relative.charAt(0) !== '.') { + throw new FS.ErrnoError(28); + } + // new path should not be an ancestor of the old path + relative = PATH_FS.relative(new_path, old_dirname); + if (relative.charAt(0) !== '.') { + throw new FS.ErrnoError(55); + } + // see if the new path already exists + var new_node; + try { + new_node = FS.lookupNode(new_dir, new_name); + } catch (e) { + // not fatal + } + // early out if nothing needs to change + if (old_node === new_node) { + return; + } + // we'll need to delete the old entry + var isdir = FS.isDir(old_node.mode); + var errCode = FS.mayDelete(old_dir, old_name, isdir); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + // need delete permissions if we'll be overwriting. + // need create permissions if new doesn't already exist. + errCode = new_node ? + FS.mayDelete(new_dir, new_name, isdir) : + FS.mayCreate(new_dir, new_name); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!old_dir.node_ops.rename) { + throw new FS.ErrnoError(63); + } + if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) { + throw new FS.ErrnoError(10); + } + // if we are going to change the parent, check write permissions + if (new_dir !== old_dir) { + errCode = FS.nodePermissions(old_dir, 'w'); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + } + // remove the node from the lookup hash + FS.hashRemoveNode(old_node); + // do the underlying fs rename + try { + old_dir.node_ops.rename(old_node, new_dir, new_name); + // update old node (we do this here to avoid each backend + // needing to) + old_node.parent = new_dir; + } catch (e) { + throw e; + } finally { + // add the node back to the hash (in case node_ops.rename + // changed its name) + FS.hashAddNode(old_node); + } + }, + rmdir(path) { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + var node = FS.lookupNode(parent, name); + var errCode = FS.mayDelete(parent, name, true); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.rmdir) { + throw new FS.ErrnoError(63); + } + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(10); + } + parent.node_ops.rmdir(parent, name); + FS.destroyNode(node); + }, + readdir(path) { + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + var readdir = FS.checkOpExists(node.node_ops.readdir, 54); + return readdir(node); + }, + unlink(path) { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + if (!parent) { + throw new FS.ErrnoError(44); + } + var name = PATH.basename(path); + var node = FS.lookupNode(parent, name); + var errCode = FS.mayDelete(parent, name, false); + if (errCode) { + // According to POSIX, we should map EISDIR to EPERM, but + // we instead do what Linux does (and we must, as we use + // the musl linux libc). + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.unlink) { + throw new FS.ErrnoError(63); + } + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(10); + } + parent.node_ops.unlink(parent, name); + FS.destroyNode(node); + }, + readlink(path) { + var lookup = FS.lookupPath(path); + var link = lookup.node; + if (!link) { + throw new FS.ErrnoError(44); + } + if (!link.node_ops.readlink) { + throw new FS.ErrnoError(28); + } + return link.node_ops.readlink(link); + }, + stat(path, dontFollow) { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + var node = lookup.node; + var getattr = FS.checkOpExists(node.node_ops.getattr, 63); + return getattr(node); + }, + fstat(fd) { + var stream = FS.getStreamChecked(fd); + var node = stream.node; + var getattr = stream.stream_ops.getattr; + var arg = getattr ? stream : node; + getattr ??= node.node_ops.getattr; + FS.checkOpExists(getattr, 63) + return getattr(arg); + }, + lstat(path) { + return FS.stat(path, true); + }, + doChmod(stream, node, mode, dontFollow) { + FS.doSetAttr(stream, node, { + mode: (mode & 4095) | (node.mode & ~4095), + ctime: Date.now(), + dontFollow + }); + }, + chmod(path, mode, dontFollow) { + var node; + if (typeof path == 'string') { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + node = lookup.node; + } else { + node = path; + } + FS.doChmod(null, node, mode, dontFollow); + }, + lchmod(path, mode) { + FS.chmod(path, mode, true); + }, + fchmod(fd, mode) { + var stream = FS.getStreamChecked(fd); + FS.doChmod(stream, stream.node, mode, false); + }, + doChown(stream, node, dontFollow) { + FS.doSetAttr(stream, node, { + timestamp: Date.now(), + dontFollow + // we ignore the uid / gid for now + }); + }, + chown(path, uid, gid, dontFollow) { + var node; + if (typeof path == 'string') { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + node = lookup.node; + } else { + node = path; + } + FS.doChown(null, node, dontFollow); + }, + lchown(path, uid, gid) { + FS.chown(path, uid, gid, true); + }, + fchown(fd, uid, gid) { + var stream = FS.getStreamChecked(fd); + FS.doChown(stream, stream.node, false); + }, + doTruncate(stream, node, len) { + if (FS.isDir(node.mode)) { + throw new FS.ErrnoError(31); + } + if (!FS.isFile(node.mode)) { + throw new FS.ErrnoError(28); + } + var errCode = FS.nodePermissions(node, 'w'); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + FS.doSetAttr(stream, node, { + size: len, + timestamp: Date.now() + }); + }, + truncate(path, len) { + if (len < 0) { + throw new FS.ErrnoError(28); + } + var node; + if (typeof path == 'string') { + var lookup = FS.lookupPath(path, { follow: true }); + node = lookup.node; + } else { + node = path; + } + FS.doTruncate(null, node, len); + }, + ftruncate(fd, len) { + var stream = FS.getStreamChecked(fd); + if (len < 0 || (stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(28); + } + FS.doTruncate(stream, stream.node, len); + }, + utime(path, atime, mtime) { + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + var setattr = FS.checkOpExists(node.node_ops.setattr, 63); + setattr(node, { + atime: atime, + mtime: mtime + }); + }, + open(path, flags, mode = 0o666) { + if (path === "") { + throw new FS.ErrnoError(44); + } + flags = FS_modeStringToFlags(flags); + if ((flags & 64)) { + mode = (mode & 4095) | 32768; + } else { + mode = 0; + } + var node; + var isDirPath; + if (typeof path == 'object') { + node = path; + } else { + isDirPath = path.endsWith("/"); + // noent_okay makes it so that if the final component of the path + // doesn't exist, lookupPath returns `node: undefined`. `path` will be + // updated to point to the target of all symlinks. + var lookup = FS.lookupPath(path, { + follow: !(flags & 131072), + noent_okay: true + }); + node = lookup.node; + path = lookup.path; + } + // perhaps we need to create the node + var created = false; + if ((flags & 64)) { + if (node) { + // if O_CREAT and O_EXCL are set, error out if the node already exists + if ((flags & 128)) { + throw new FS.ErrnoError(20); + } + } else if (isDirPath) { + throw new FS.ErrnoError(31); + } else { + // node doesn't exist, try to create it + // Ignore the permission bits here to ensure we can `open` this new + // file below. We use chmod below to apply the permissions once the + // file is open. + node = FS.mknod(path, mode | 0o777, 0); + created = true; + } + } + if (!node) { + throw new FS.ErrnoError(44); + } + // can't truncate a device + if (FS.isChrdev(node.mode)) { + flags &= ~512; + } + // if asked only for a directory, then this must be one + if ((flags & 65536) && !FS.isDir(node.mode)) { + throw new FS.ErrnoError(54); + } + // check permissions, if this is not a file we just created now (it is ok to + // create and write to a file with read-only permissions; it is read-only + // for later use) + if (!created) { + var errCode = FS.mayOpen(node, flags); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + } + // do truncation if necessary + if ((flags & 512) && !created) { + FS.truncate(node, 0); + } + // we've already handled these, don't pass down to the underlying vfs + flags &= ~(128 | 512 | 131072); + + // register the stream with the filesystem + var stream = FS.createStream({ + node, + path: FS.getPath(node), // we want the absolute path to the node + flags, + seekable: true, + position: 0, + stream_ops: node.stream_ops, + // used by the file family libc calls (fopen, fwrite, ferror, etc.) + ungotten: [], + error: false + }); + // call the new stream's open function + if (stream.stream_ops.open) { + stream.stream_ops.open(stream); + } + if (created) { + FS.chmod(node, mode & 0o777); + } + return stream; + }, + close(stream) { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if (stream.getdents) stream.getdents = null; // free readdir state + try { + if (stream.stream_ops.close) { + stream.stream_ops.close(stream); + } + } catch (e) { + throw e; + } finally { + FS.closeStream(stream.fd); + } + stream.fd = null; + }, + isClosed(stream) { + return stream.fd === null; + }, + llseek(stream, offset, whence) { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if (!stream.seekable || !stream.stream_ops.llseek) { + throw new FS.ErrnoError(70); + } + if (whence != 0 && whence != 1 && whence != 2) { + throw new FS.ErrnoError(28); + } + stream.position = stream.stream_ops.llseek(stream, offset, whence); + stream.ungotten = []; + return stream.position; + }, + read(stream, buffer, offset, length, position) { + assert(offset >= 0); + if (length < 0 || position < 0) { + throw new FS.ErrnoError(28); + } + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if ((stream.flags & 2097155) === 1) { + throw new FS.ErrnoError(8); + } + if (FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(31); + } + if (!stream.stream_ops.read) { + throw new FS.ErrnoError(28); + } + var seeking = typeof position != 'undefined'; + if (!seeking) { + position = stream.position; + } else if (!stream.seekable) { + throw new FS.ErrnoError(70); + } + var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position); + if (!seeking) stream.position += bytesRead; + return bytesRead; + }, + write(stream, buffer, offset, length, position, canOwn) { + assert(offset >= 0); + assert(buffer.subarray, 'FS.write expects a TypedArray'); + if (length < 0 || position < 0) { + throw new FS.ErrnoError(28); + } + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(8); + } + if (FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(31); + } + if (!stream.stream_ops.write) { + throw new FS.ErrnoError(28); + } + if (stream.seekable && stream.flags & 1024) { + // seek to the end before writing in append mode + FS.llseek(stream, 0, 2); + } + var seeking = typeof position != 'undefined'; + if (!seeking) { + position = stream.position; + } else if (!stream.seekable) { + throw new FS.ErrnoError(70); + } + var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn); + if (!seeking) stream.position += bytesWritten; + return bytesWritten; + }, + mmap(stream, length, position, prot, flags) { + // User requests writing to file (prot & PROT_WRITE != 0). + // Checking if we have permissions to write to the file unless + // MAP_PRIVATE flag is set. According to POSIX spec it is possible + // to write to file opened in read-only mode with MAP_PRIVATE flag, + // as all modifications will be visible only in the memory of + // the current process. + if ((prot & 2) !== 0 + && (flags & 2) === 0 + && (stream.flags & 2097155) !== 2) { + throw new FS.ErrnoError(2); + } + if ((stream.flags & 2097155) === 1) { + throw new FS.ErrnoError(2); + } + if (!stream.stream_ops.mmap) { + throw new FS.ErrnoError(43); + } + if (!length) { + throw new FS.ErrnoError(28); + } + return stream.stream_ops.mmap(stream, length, position, prot, flags); + }, + msync(stream, buffer, offset, length, mmapFlags) { + assert(offset >= 0); + if (!stream.stream_ops.msync) { + return 0; + } + return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags); + }, + ioctl(stream, cmd, arg) { + if (!stream.stream_ops.ioctl) { + throw new FS.ErrnoError(59); + } + return stream.stream_ops.ioctl(stream, cmd, arg); + }, + readFile(path, opts = {}) { + opts.flags = opts.flags || 0; + opts.encoding = opts.encoding || 'binary'; + if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') { + abort(`Invalid encoding type "${opts.encoding}"`); + } + var stream = FS.open(path, opts.flags); + var stat = FS.stat(path); + var length = stat.size; + var buf = new Uint8Array(length); + FS.read(stream, buf, 0, length, 0); + if (opts.encoding === 'utf8') { + buf = UTF8ArrayToString(buf); + } + FS.close(stream); + return buf; + }, + writeFile(path, data, opts = {}) { + opts.flags = opts.flags || 577; + var stream = FS.open(path, opts.flags, opts.mode); + data = FS_fileDataToTypedArray(data); + FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn); + FS.close(stream); + }, + cwd:() => FS.currentPath, + chdir(path) { + var lookup = FS.lookupPath(path, { follow: true }); + if (lookup.node === null) { + throw new FS.ErrnoError(44); + } + if (!FS.isDir(lookup.node.mode)) { + throw new FS.ErrnoError(54); + } + var errCode = FS.nodePermissions(lookup.node, 'x'); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + FS.currentPath = lookup.path; + }, + createDefaultDirectories() { + FS.mkdir('/tmp'); + FS.mkdir('/home'); + FS.mkdir('/home/web_user'); + }, + createDefaultDevices() { + // create /dev + FS.mkdir('/dev'); + // setup /dev/null + FS.registerDevice(FS.makedev(1, 3), { + read: () => 0, + write: (stream, buffer, offset, length, pos) => length, + llseek: () => 0, + }); + FS.mkdev('/dev/null', FS.makedev(1, 3)); + // setup /dev/tty and /dev/tty1 + // stderr needs to print output using err() rather than out() + // so we register a second tty just for it. + TTY.register(FS.makedev(5, 0), TTY.default_tty_ops); + TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops); + FS.mkdev('/dev/tty', FS.makedev(5, 0)); + FS.mkdev('/dev/tty1', FS.makedev(6, 0)); + // setup /dev/[u]random + // use a buffer to avoid overhead of individual crypto calls per byte + var randomBuffer = new Uint8Array(1024), randomLeft = 0; + var randomByte = () => { + if (randomLeft === 0) { + randomFill(randomBuffer); + randomLeft = randomBuffer.byteLength; + } + return randomBuffer[--randomLeft]; + }; + FS.createDevice('/dev', 'random', randomByte); + FS.createDevice('/dev', 'urandom', randomByte); + // we're not going to emulate the actual shm device, + // just create the tmp dirs that reside in it commonly + FS.mkdir('/dev/shm'); + FS.mkdir('/dev/shm/tmp'); + }, + createSpecialDirectories() { + // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the + // name of the stream for fd 6 (see test_unistd_ttyname) + FS.mkdir('/proc'); + var proc_self = FS.mkdir('/proc/self'); + FS.mkdir('/proc/self/fd'); + FS.mount({ + mount() { + var node = FS.createNode(proc_self, 'fd', 16895, 73); + node.stream_ops = { + llseek: MEMFS.stream_ops.llseek, + }; + node.node_ops = { + lookup(parent, name) { + var fd = +name; + var stream = FS.getStreamChecked(fd); + var ret = { + parent: null, + mount: { mountpoint: 'fake' }, + node_ops: { readlink: () => stream.path }, + id: fd + 1, + }; + ret.parent = ret; // make it look like a simple root node + return ret; + }, + readdir() { + return Array.from(FS.streams.entries()) + .filter(([k, v]) => v) + .map(([k, v]) => k.toString()); + } + }; + return node; + } + }, {}, '/proc/self/fd'); + }, + createStandardStreams(input, output, error) { + // TODO deprecate the old functionality of a single + // input / output callback and that utilizes FS.createDevice + // and instead require a unique set of stream ops + + // by default, we symlink the standard streams to the + // default tty devices. however, if the standard streams + // have been overwritten we create a unique device for + // them instead. + if (input) { + FS.createDevice('/dev', 'stdin', input); + } else { + FS.symlink('/dev/tty', '/dev/stdin'); + } + if (output) { + FS.createDevice('/dev', 'stdout', null, output); + } else { + FS.symlink('/dev/tty', '/dev/stdout'); + } + if (error) { + FS.createDevice('/dev', 'stderr', null, error); + } else { + FS.symlink('/dev/tty1', '/dev/stderr'); + } + + // open default streams for the stdin, stdout and stderr devices + var stdin = FS.open('/dev/stdin', 0); + var stdout = FS.open('/dev/stdout', 1); + var stderr = FS.open('/dev/stderr', 1); + assert(stdin.fd === 0, `invalid handle for stdin (${stdin.fd})`); + assert(stdout.fd === 1, `invalid handle for stdout (${stdout.fd})`); + assert(stderr.fd === 2, `invalid handle for stderr (${stderr.fd})`); + }, + staticInit() { + FS.nameTable = new Array(4096); + + FS.mount(MEMFS, {}, '/'); + + FS.createDefaultDirectories(); + FS.createDefaultDevices(); + FS.createSpecialDirectories(); + + FS.filesystems = { + 'MEMFS': MEMFS, + }; + }, + init(input, output, error) { + assert(!FS.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)'); + FS.initialized = true; + + // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here + input ??= Module['stdin']; + output ??= Module['stdout']; + error ??= Module['stderr']; + + FS.createStandardStreams(input, output, error); + }, + quit() { + FS.initialized = false; + // force-flush all streams, so we get musl std streams printed out + _fflush(0); + // close all of our streams + for (var stream of FS.streams) { + if (stream) { + FS.close(stream); + } + } + }, + findObject(path, dontResolveLastLink) { + var ret = FS.analyzePath(path, dontResolveLastLink); + if (!ret.exists) { + return null; + } + return ret.object; + }, + analyzePath(path, dontResolveLastLink) { + // operate from within the context of the symlink's target + try { + var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); + path = lookup.path; + } catch (e) { + } + var ret = { + isRoot: false, exists: false, error: 0, name: null, path: null, object: null, + parentExists: false, parentPath: null, parentObject: null + }; + try { + var lookup = FS.lookupPath(path, { parent: true }); + ret.parentExists = true; + ret.parentPath = lookup.path; + ret.parentObject = lookup.node; + ret.name = PATH.basename(path); + lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); + ret.exists = true; + ret.path = lookup.path; + ret.object = lookup.node; + ret.name = lookup.node.name; + ret.isRoot = lookup.path === '/'; + } catch (e) { + ret.error = e.errno; + }; + return ret; + }, + createPath(parent, path, canRead, canWrite) { + parent = typeof parent == 'string' ? parent : FS.getPath(parent); + var parts = path.split('/').reverse(); + while (parts.length) { + var part = parts.pop(); + if (!part) continue; + var current = PATH.join2(parent, part); + try { + FS.mkdir(current); + } catch (e) { + if (e.errno != 20) throw e; + } + parent = current; + } + return current; + }, + createFile(parent, name, properties, canRead, canWrite) { + var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name); + var mode = FS_getMode(canRead, canWrite); + return FS.create(path, mode); + }, + createDataFile(parent, name, data, canRead, canWrite, canOwn) { + var path = name; + if (parent) { + parent = typeof parent == 'string' ? parent : FS.getPath(parent); + path = name ? PATH.join2(parent, name) : parent; + } + var mode = FS_getMode(canRead, canWrite); + var node = FS.create(path, mode); + if (data) { + data = FS_fileDataToTypedArray(data); + // make sure we can write to the file + FS.chmod(node, mode | 146); + var stream = FS.open(node, 577); + FS.write(stream, data, 0, data.length, 0, canOwn); + FS.close(stream); + FS.chmod(node, mode); + } + }, + createDevice(parent, name, input, output) { + var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name); + var mode = FS_getMode(!!input, !!output); + FS.createDevice.major ??= 64; + var dev = FS.makedev(FS.createDevice.major++, 0); + // Create a fake device that a set of stream ops to emulate + // the old behavior. + FS.registerDevice(dev, { + open(stream) { + stream.seekable = false; + }, + close(stream) { + // flush any pending line data + if (output?.buffer?.length) { + output(10); + } + }, + read(stream, buffer, offset, length, pos /* ignored */) { + var bytesRead = 0; + for (var i = 0; i < length; i++) { + var result; + try { + result = input(); + } catch (e) { + throw new FS.ErrnoError(29); + } + if (result === undefined && bytesRead === 0) { + throw new FS.ErrnoError(6); + } + if (result === null || result === undefined) break; + bytesRead++; + buffer[offset+i] = result; + } + if (bytesRead) { + stream.node.atime = Date.now(); + } + return bytesRead; + }, + write(stream, buffer, offset, length, pos) { + for (var i = 0; i < length; i++) { + try { + output(buffer[offset+i]); + } catch (e) { + throw new FS.ErrnoError(29); + } + } + if (length) { + stream.node.mtime = stream.node.ctime = Date.now(); + } + return i; + } + }); + return FS.mkdev(path, mode, dev); + }, + forceLoadFile(obj) { + if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true; + if (globalThis.XMLHttpRequest) { + abort("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread."); + } else { // Command-line. + try { + obj.contents = readBinary(obj.url); + } catch (e) { + throw new FS.ErrnoError(29); + } + } + }, + createLazyFile(parent, name, url, canRead, canWrite) { + // Lazy chunked Uint8Array (implements get and length from Uint8Array). + // Actual getting is abstracted away for eventual reuse. + class LazyUint8Array { + lengthKnown = false; + chunks = []; // Loaded chunks. Index is the chunk number + get(idx) { + if (idx > this.length-1 || idx < 0) { + return undefined; + } + var chunkOffset = idx % this.chunkSize; + var chunkNum = (idx / this.chunkSize)|0; + return this.getter(chunkNum)[chunkOffset]; + } + setDataGetter(getter) { + this.getter = getter; + } + cacheLength() { + // Find length + var xhr = new XMLHttpRequest(); + xhr.open('HEAD', url, false); + xhr.send(null); + if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) abort("Couldn't load " + url + ". Status: " + xhr.status); + var datalength = Number(xhr.getResponseHeader("Content-length")); + var header; + var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes"; + var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip"; + + var chunkSize = 1024*1024; // Chunk size in bytes + + if (!hasByteServing) chunkSize = datalength; + + // Function to get a range from the remote URL. + var doXHR = (from, to) => { + if (from > to) abort("invalid range (" + from + ", " + to + ") or no bytes requested!"); + if (to > datalength-1) abort("only " + datalength + " bytes available! programmer error!"); + + // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available. + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to); + + // Some hints to the browser that we want binary data. + xhr.responseType = 'arraybuffer'; + if (xhr.overrideMimeType) { + xhr.overrideMimeType('text/plain; charset=x-user-defined'); + } + + xhr.send(null); + if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) abort("Couldn't load " + url + ". Status: " + xhr.status); + if (xhr.response !== undefined) { + return new Uint8Array(/** @type{Array} */(xhr.response || [])); + } + return intArrayFromString(xhr.responseText || '', true); + }; + var lazyArray = this; + lazyArray.setDataGetter((chunkNum) => { + var start = chunkNum * chunkSize; + var end = (chunkNum+1) * chunkSize - 1; // including this byte + end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block + if (typeof lazyArray.chunks[chunkNum] == 'undefined') { + lazyArray.chunks[chunkNum] = doXHR(start, end); + } + if (typeof lazyArray.chunks[chunkNum] == 'undefined') abort('doXHR failed!'); + return lazyArray.chunks[chunkNum]; + }); + + if (usesGzip || !datalength) { + // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length + chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file + datalength = this.getter(0).length; + chunkSize = datalength; + out("LazyFiles on gzip forces download of the whole file when length is accessed"); + } + + this._length = datalength; + this._chunkSize = chunkSize; + this.lengthKnown = true; + } + get length() { + if (!this.lengthKnown) { + this.cacheLength(); + } + return this._length; + } + get chunkSize() { + if (!this.lengthKnown) { + this.cacheLength(); + } + return this._chunkSize; + } + } + + if (globalThis.XMLHttpRequest) { + if (!ENVIRONMENT_IS_WORKER) abort('Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc'); + var lazyArray = new LazyUint8Array(); + var properties = { isDevice: false, contents: lazyArray }; + } else { + var properties = { isDevice: false, url: url }; + } + + var node = FS.createFile(parent, name, properties, canRead, canWrite); + // This is a total hack, but I want to get this lazy file code out of the + // core of MEMFS. If we want to keep this lazy file concept I feel it should + // be its own thin LAZYFS proxying calls to MEMFS. + if (properties.contents) { + node.contents = properties.contents; + } else if (properties.url) { + node.contents = null; + node.url = properties.url; + } + // Add a function that defers querying the file size until it is asked the first time. + Object.defineProperties(node, { + usedBytes: { + get: function() { return this.contents.length; } + } + }); + // override each stream op with one that tries to force load the lazy file first + var stream_ops = {}; + for (const [key, fn] of Object.entries(node.stream_ops)) { + stream_ops[key] = (...args) => { + FS.forceLoadFile(node); + return fn(...args); + }; + } + function writeChunks(stream, buffer, offset, length, position) { + var contents = stream.node.contents; + if (position >= contents.length) + return 0; + var size = Math.min(contents.length - position, length); + assert(size >= 0); + if (contents.slice) { // normal array + for (var i = 0; i < size; i++) { + buffer[offset + i] = contents[position + i]; + } + } else { + for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR + buffer[offset + i] = contents.get(position + i); + } + } + return size; + } + // use a custom read function + stream_ops.read = (stream, buffer, offset, length, position) => { + FS.forceLoadFile(node); + return writeChunks(stream, buffer, offset, length, position) + }; + // use a custom mmap function + stream_ops.mmap = (stream, length, position, prot, flags) => { + FS.forceLoadFile(node); + var ptr = mmapAlloc(length); + if (!ptr) { + throw new FS.ErrnoError(48); + } + writeChunks(stream, HEAP8, ptr, length, position); + return { ptr, allocated: true }; + }; + node.stream_ops = stream_ops; + return node; + }, + }; + + var SYSCALLS = { + calculateAt(dirfd, path, allowEmpty) { + if (PATH.isAbs(path)) { + return path; + } + // relative path + var dir; + if (dirfd === -100) { + dir = FS.cwd(); + } else { + var dirstream = SYSCALLS.getStreamFromFD(dirfd); + dir = dirstream.path; + } + if (path.length == 0) { + if (!allowEmpty) { + throw new FS.ErrnoError(44);; + } + return dir; + } + return dir + '/' + path; + }, + writeStat(buf, stat) { + HEAPU32[((buf)>>2)] = stat.dev; + HEAPU32[(((buf)+(4))>>2)] = stat.mode; + HEAPU32[(((buf)+(8))>>2)] = stat.nlink; + HEAPU32[(((buf)+(12))>>2)] = stat.uid; + HEAPU32[(((buf)+(16))>>2)] = stat.gid; + HEAPU32[(((buf)+(20))>>2)] = stat.rdev; + HEAP64[(((buf)+(24))>>3)] = BigInt(stat.size); + HEAP32[(((buf)+(32))>>2)] = 4096; + HEAP32[(((buf)+(36))>>2)] = stat.blocks; + var atime = stat.atime.getTime(); + var mtime = stat.mtime.getTime(); + var ctime = stat.ctime.getTime(); + HEAP64[(((buf)+(40))>>3)] = BigInt(Math.floor(atime / 1000)); + HEAPU32[(((buf)+(48))>>2)] = (atime % 1000) * 1000 * 1000; + HEAP64[(((buf)+(56))>>3)] = BigInt(Math.floor(mtime / 1000)); + HEAPU32[(((buf)+(64))>>2)] = (mtime % 1000) * 1000 * 1000; + HEAP64[(((buf)+(72))>>3)] = BigInt(Math.floor(ctime / 1000)); + HEAPU32[(((buf)+(80))>>2)] = (ctime % 1000) * 1000 * 1000; + HEAP64[(((buf)+(88))>>3)] = BigInt(stat.ino); + return 0; + }, + writeStatFs(buf, stats) { + HEAPU32[(((buf)+(4))>>2)] = stats.bsize; + HEAPU32[(((buf)+(60))>>2)] = stats.bsize; + HEAP64[(((buf)+(8))>>3)] = BigInt(stats.blocks); + HEAP64[(((buf)+(16))>>3)] = BigInt(stats.bfree); + HEAP64[(((buf)+(24))>>3)] = BigInt(stats.bavail); + HEAP64[(((buf)+(32))>>3)] = BigInt(stats.files); + HEAP64[(((buf)+(40))>>3)] = BigInt(stats.ffree); + HEAPU32[(((buf)+(48))>>2)] = stats.fsid; + HEAPU32[(((buf)+(64))>>2)] = stats.flags; // ST_NOSUID + HEAPU32[(((buf)+(56))>>2)] = stats.namelen; + }, + doMsync(addr, stream, len, flags, offset) { + if (!FS.isFile(stream.node.mode)) { + throw new FS.ErrnoError(43); + } + if (flags & 2) { + // MAP_PRIVATE calls need not to be synced back to underlying fs + return 0; + } + var buffer = HEAPU8.slice(addr, addr + len); + FS.msync(stream, buffer, offset, len, flags); + }, + getStreamFromFD(fd) { + var stream = FS.getStreamChecked(fd); + return stream; + }, + varargs:undefined, + getStr(ptr) { + var ret = UTF8ToString(ptr); + return ret; + }, + }; + function ___syscall_faccessat(dirfd, path, amode, flags) { + try { + + path = SYSCALLS.getStr(path); + assert(!flags || flags == 512); + path = SYSCALLS.calculateAt(dirfd, path); + if (amode & ~7) { + // need a valid mode + return -28; + } + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + if (!node) { + return -44; + } + var perms = ''; + if (amode & 4) perms += 'r'; + if (amode & 2) perms += 'w'; + if (amode & 1) perms += 'x'; + if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) { + return -2; + } + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return -e.errno; + } + } + + var syscallGetVarargI = () => { + assert(SYSCALLS.varargs != undefined); + // the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number. + var ret = HEAP32[((+SYSCALLS.varargs)>>2)]; + SYSCALLS.varargs += 4; + return ret; + }; + var syscallGetVarargP = syscallGetVarargI; + + + function ___syscall_fcntl64(fd, cmd, varargs) { + SYSCALLS.varargs = varargs; + try { + + var stream = SYSCALLS.getStreamFromFD(fd); + switch (cmd) { + case 0: { + var arg = syscallGetVarargI(); + if (arg < 0) { + return -28; + } + while (FS.streams[arg]) { + arg++; + } + var newStream; + newStream = FS.dupStream(stream, arg); + return newStream.fd; + } + case 1: + case 2: + return 0; // FD_CLOEXEC makes no sense for a single process. + case 3: + return stream.flags; + case 4: { + var arg = syscallGetVarargI(); + stream.flags |= arg; + return 0; + } + case 12: { + var arg = syscallGetVarargP(); + var offset = 0; + // We're always unlocked. + HEAP16[(((arg)+(offset))>>1)] = 2; + return 0; + } + case 13: + case 14: + // Pretend that the locking is successful. These are process-level locks, + // and Emscripten programs are a single process. If we supported linking a + // filesystem between programs, we'd need to do more here. + // See https://github.com/emscripten-core/emscripten/issues/23697 + return 0; + } + return -28; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return -e.errno; + } + } + + + 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); + }; + function ___syscall_getcwd(buf, size) { + try { + + if (size === 0) return -28; + var cwd = FS.cwd(); + var cwdLengthInBytes = lengthBytesUTF8(cwd) + 1; + if (size < cwdLengthInBytes) return -68; + stringToUTF8(cwd, buf, size); + return cwdLengthInBytes; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return -e.errno; + } + } + + + function ___syscall_ioctl(fd, op, varargs) { + SYSCALLS.varargs = varargs; + try { + + var stream = SYSCALLS.getStreamFromFD(fd); + switch (op) { + case 21509: { + if (!stream.tty) return -59; + return 0; + } + case 21505: { + if (!stream.tty) return -59; + if (stream.tty.ops.ioctl_tcgets) { + var termios = stream.tty.ops.ioctl_tcgets(stream); + var argp = syscallGetVarargP(); + HEAP32[((argp)>>2)] = termios.c_iflag || 0; + HEAP32[(((argp)+(4))>>2)] = termios.c_oflag || 0; + HEAP32[(((argp)+(8))>>2)] = termios.c_cflag || 0; + HEAP32[(((argp)+(12))>>2)] = termios.c_lflag || 0; + for (var i = 0; i < 32; i++) { + HEAP8[(argp + i)+(17)] = termios.c_cc[i] || 0; + } + return 0; + } + return 0; + } + case 21510: + case 21511: + case 21512: { + if (!stream.tty) return -59; + return 0; // no-op, not actually adjusting terminal settings + } + case 21506: + case 21507: + case 21508: { + if (!stream.tty) return -59; + if (stream.tty.ops.ioctl_tcsets) { + var argp = syscallGetVarargP(); + var c_iflag = HEAP32[((argp)>>2)]; + var c_oflag = HEAP32[(((argp)+(4))>>2)]; + var c_cflag = HEAP32[(((argp)+(8))>>2)]; + var c_lflag = HEAP32[(((argp)+(12))>>2)]; + var c_cc = [] + for (var i = 0; i < 32; i++) { + c_cc.push(HEAP8[(argp + i)+(17)]); + } + return stream.tty.ops.ioctl_tcsets(stream.tty, op, { c_iflag, c_oflag, c_cflag, c_lflag, c_cc }); + } + return 0; // no-op, not actually adjusting terminal settings + } + case 21519: { + if (!stream.tty) return -59; + var argp = syscallGetVarargP(); + HEAP32[((argp)>>2)] = 0; + return 0; + } + case 21520: { + if (!stream.tty) return -59; + return -28; // not supported + } + case 21537: + case 21531: { + var argp = syscallGetVarargP(); + return FS.ioctl(stream, op, argp); + } + case 21523: { + // TODO: in theory we should write to the winsize struct that gets + // passed in, but for now musl doesn't read anything on it + if (!stream.tty) return -59; + if (stream.tty.ops.ioctl_tiocgwinsz) { + var winsize = stream.tty.ops.ioctl_tiocgwinsz(stream.tty); + var argp = syscallGetVarargP(); + HEAP16[((argp)>>1)] = winsize[0]; + HEAP16[(((argp)+(2))>>1)] = winsize[1]; + } + return 0; + } + case 21524: { + // TODO: technically, this ioctl call should change the window size. + // but, since emscripten doesn't have any concept of a terminal window + // yet, we'll just silently throw it away as we do TIOCGWINSZ + if (!stream.tty) return -59; + return 0; + } + case 21515: { + if (!stream.tty) return -59; + return 0; + } + default: return -28; // not supported + } + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return -e.errno; + } + } + + + function ___syscall_openat(dirfd, path, flags, varargs) { + SYSCALLS.varargs = varargs; + try { + + path = SYSCALLS.getStr(path); + path = SYSCALLS.calculateAt(dirfd, path); + var mode = varargs ? syscallGetVarargI() : 0; + return FS.open(path, flags, mode).fd; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return -e.errno; + } + } + + var __abort_js = () => + abort('native code called abort()'); + + var _emscripten_get_now = () => performance.now(); + + var _emscripten_date_now = () => Date.now(); + + var nowIsMonotonic = 1; + + var checkWasiClock = (clock_id) => clock_id >= 0 && clock_id <= 3; + + var INT53_MAX = 9007199254740992; + + var INT53_MIN = -9007199254740992; + var bigintToI53Checked = (num) => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num); + function _clock_time_get(clk_id, ignored_precision, ptime) { + ignored_precision = bigintToI53Checked(ignored_precision); + + + if (!checkWasiClock(clk_id)) { + return 28; + } + var now; + // all wasi clocks but realtime are monotonic + if (clk_id === 0) { + now = _emscripten_date_now(); + } else if (nowIsMonotonic) { + now = _emscripten_get_now(); + } else { + return 52; + } + // "now" is in ms, and wasi times are in ns. + var nsec = Math.round(now * 1000 * 1000); + HEAP64[((ptime)>>3)] = BigInt(nsec); + return 0; + ; + } + + var readEmAsmArgsArray = []; + var readEmAsmArgs = (sigPtr, buf) => { + // Nobody should have mutated _readEmAsmArgsArray underneath us to be something else than an array. + assert(Array.isArray(readEmAsmArgsArray)); + // The input buffer is allocated on the stack, so it must be stack-aligned. + assert(buf % 16 == 0); + readEmAsmArgsArray.length = 0; + var ch; + // Most arguments are i32s, so shift the buffer pointer so it is a plain + // index into HEAP32. + while (ch = HEAPU8[sigPtr++]) { + var chr = String.fromCharCode(ch); + var validChars = ['d', 'f', 'i', 'p']; + // In WASM_BIGINT mode we support passing i64 values as bigint. + validChars.push('j'); + assert(validChars.includes(chr), `Invalid character ${ch}("${chr}") in readEmAsmArgs! Use only [${validChars}], and do not specify "v" for void return argument.`); + // Floats are always passed as doubles, so all types except for 'i' + // are 8 bytes and require alignment. + var wide = (ch != 105); + wide &= (ch != 112); + buf += wide && (buf % 8) ? 4 : 0; + readEmAsmArgsArray.push( + // Special case for pointers under wasm64 or CAN_ADDRESS_2GB mode. + ch == 112 ? HEAPU32[((buf)>>2)] : + ch == 106 ? HEAP64[((buf)>>3)] : + ch == 105 ? + HEAP32[((buf)>>2)] : + HEAPF64[((buf)>>3)] + ); + buf += wide ? 8 : 4; + } + return readEmAsmArgsArray; + }; + var runEmAsmFunction = (code, sigPtr, argbuf) => { + var args = readEmAsmArgs(sigPtr, argbuf); + assert(ASM_CONSTS.hasOwnProperty(code), `No EM_ASM constant found at address ${code}. The loaded WebAssembly file is likely out of sync with the generated JavaScript.`); + return ASM_CONSTS[code](...args); + }; + var _emscripten_asm_const_double = (code, sigPtr, argbuf) => { + return runEmAsmFunction(code, sigPtr, argbuf); + }; + + var _emscripten_asm_const_int = (code, sigPtr, argbuf) => { + return runEmAsmFunction(code, sigPtr, argbuf); + }; + + + 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, globalThis.document ?? 0, globalThis.window ?? 0]; + var findEventTarget = (target) => { + target = maybeCStringToJsString(target); + var domElement = specialHTMLTargets[target] || globalThis.document?.querySelector(target); + 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 onExits = []; + var addOnExit = (cb) => onExits.push(cb); + 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://bugzil.la/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; + }, + removeSingleHandler(eventHandler) { + let success = false; + for (let i = 0; i < JSEvents.eventHandlers.length; ++i) { + const handler = JSEvents.eventHandlers[i]; + if (handler.target === eventHandler.target + && handler.eventTypeId === eventHandler.eventTypeId + && handler.callbackfunc === eventHandler.callbackfunc + && handler.userData === eventHandler.userData) { + // in some very rare cases (ex: Safari / fullscreen events), there is more than 1 handler (eventTypeString is different) + JSEvents._removeHandler(i--); + success = true; + } + } + return success ? 0 : -5; + }, + 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 fillGamepadEventData = (eventStruct, e) => { + HEAPF64[((eventStruct)>>3)] = e.timestamp; + for (var i = 0; i < e.axes.length; ++i) { + HEAPF64[(((eventStruct+i*8)+(16))>>3)] = e.axes[i]; + } + for (var i = 0; i < e.buttons.length; ++i) { + if (typeof e.buttons[i] == 'object') { + HEAPF64[(((eventStruct+i*8)+(528))>>3)] = e.buttons[i].value; + } else { + HEAPF64[(((eventStruct+i*8)+(528))>>3)] = e.buttons[i]; + } + } + for (var i = 0; i < e.buttons.length; ++i) { + if (typeof e.buttons[i] == 'object') { + HEAP8[(eventStruct+i)+(1040)] = e.buttons[i].pressed; + } else { + // Assigning a boolean to HEAP32, that's ok, but Closure would like to warn about it: + /** @suppress {checkTypes} */ + HEAP8[(eventStruct+i)+(1040)] = e.buttons[i] == 1; + } + } + HEAP8[(eventStruct)+(1104)] = e.connected; + HEAP32[(((eventStruct)+(1108))>>2)] = e.index; + HEAP32[(((eventStruct)+(8))>>2)] = e.axes.length; + HEAP32[(((eventStruct)+(12))>>2)] = e.buttons.length; + stringToUTF8(e.id, eventStruct + 1112, 64); + stringToUTF8(e.mapping, eventStruct + 1176, 64); + }; + var _emscripten_get_gamepad_status = (index, gamepadState) => { + assert(JSEvents.lastGamepadState, 'emscripten_get_gamepad_status() can only be called after having first called emscripten_sample_gamepad_data() and that function has returned EMSCRIPTEN_RESULT_SUCCESS!'); + // INVALID_PARAM is returned on a Gamepad index that never was there. + if (index < 0 || index >= JSEvents.lastGamepadState.length) return -5; + + // NO_DATA is returned on a Gamepad index that was removed. + // For previously disconnected gamepads there should be an empty slot (null/undefined/false) at the index. + // This is because gamepads must keep their original position in the array. + // For example, removing the first of two gamepads produces [null/undefined/false, gamepad]. + if (!JSEvents.lastGamepadState[index]) return -7; + + fillGamepadEventData(gamepadState, JSEvents.lastGamepadState[index]); + return 0; + }; + + + var _emscripten_get_num_gamepads = () => { + assert(JSEvents.lastGamepadState, 'emscripten_get_num_gamepads() can only be called after having first called emscripten_sample_gamepad_data() and that function has returned EMSCRIPTEN_RESULT_SUCCESS!'); + // N.B. Do not call emscripten_get_num_gamepads() unless having first called emscripten_sample_gamepad_data(), and that has returned EMSCRIPTEN_RESULT_SUCCESS. + // Otherwise the following line will throw an exception. + return JSEvents.lastGamepadState.length; + }; + + 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_EXT_polygon_offset_clamp = (ctx) => + !!(ctx.extPolygonOffsetClamp = ctx.getExtension('EXT_polygon_offset_clamp')); + + var webgl_enable_EXT_clip_control = (ctx) => + !!(ctx.extClipControl = ctx.getExtension('EXT_clip_control')); + + var webgl_enable_WEBGL_polygon_mode = (ctx) => + !!(ctx.webglPolygonMode = ctx.getExtension('WEBGL_polygon_mode')); + + var webgl_enable_WEBGL_multi_draw = (ctx) => + // Closure is expected to be allowed to minify the '.multiDrawWebgl' property, so not accessing it quoted. + !!(ctx.multiDrawWebgl = ctx.getExtension('WEBGL_multi_draw')); + + var getEmscriptenSupportedExtensions = (ctx) => { + // Restrict the list of advertised extensions to those that we actually + // support. + var supportedExtensions = [ + // WebGL 1 extensions + 'ANGLE_instanced_arrays', + 'EXT_blend_minmax', + 'EXT_disjoint_timer_query', + 'EXT_frag_depth', + 'EXT_shader_texture_lod', + 'EXT_sRGB', + 'OES_element_index_uint', + 'OES_fbo_render_mipmap', + 'OES_standard_derivatives', + 'OES_texture_float', + 'OES_texture_half_float', + 'OES_texture_half_float_linear', + 'OES_vertex_array_object', + 'WEBGL_color_buffer_float', + 'WEBGL_depth_texture', + 'WEBGL_draw_buffers', + // WebGL 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 GL = { + counter:1, + buffers:[], + programs:[], + framebuffers:[], + renderbuffers:[], + textures:[], + shaders:[], + vaos:[], + contexts:[], + offscreenCanvases:{ + }, + queries:[], + stringCache:{ + }, + 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; + } + }, + 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; + }, + 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://webkit.org/b/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 = + canvas.getContext("webgl", webGLContextAttributes); + + 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); + } + + return handle; + }, + makeContextCurrent:(contextHandle) => { + + // Active Emscripten GL layer context object. + GL.currentContext = GL.contexts[contextHandle]; + // Active WebGL context object. + Module['ctx'] = GLctx = GL.currentContext?.GLctx; + return !(contextHandle && !GLctx); + }, + getContext:(contextHandle) => { + return GL.contexts[contextHandle]; + }, + deleteContext:(contextHandle) => { + if (GL.currentContext === GL.contexts[contextHandle]) { + GL.currentContext = null; + } + if (typeof JSEvents == 'object') { + // Release all JS event handlers on the DOM element that the GL context is + // associated with since the context is now deleted. + JSEvents.removeAllHandlersOnTarget(GL.contexts[contextHandle].GLctx.canvas); + } + // Make sure the canvas object no longer refers to the context object so + // there are no GC surprises. + if (GL.contexts[contextHandle]?.GLctx.canvas) { + GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined; + } + GL.contexts[contextHandle] = null; + }, + initExtensions:(context) => { + // If this function is called without a specific context object, init the + // extensions of the currently active context. + context ||= GL.currentContext; + + if (context.initExtensionsDone) return; + context.initExtensionsDone = true; + + var GLctx = context.GLctx; + + // Detect the presence of a few extensions manually, since the 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); + { + GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query"); + } + + for (var ext of getEmscriptenSupportedExtensions(GLctx)) { + // 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 _emscripten_glActiveTexture = (x0) => GLctx.activeTexture(x0); + + var _emscripten_glAttachShader = (program, shader) => { + GLctx.attachShader(GL.programs[program], GL.shaders[shader]); + }; + + var _emscripten_glBeginQueryEXT = (target, id) => { + GLctx.disjointTimerQueryExt['beginQueryEXT'](target, GL.queries[id]); + }; + + + var _emscripten_glBindAttribLocation = (program, index, name) => { + GLctx.bindAttribLocation(GL.programs[program], index, UTF8ToString(name)); + }; + + var _emscripten_glBindBuffer = (target, buffer) => { + + GLctx.bindBuffer(target, GL.buffers[buffer]); + }; + + var _emscripten_glBindFramebuffer = (target, framebuffer) => { + + GLctx.bindFramebuffer(target, GL.framebuffers[framebuffer]); + + }; + + var _emscripten_glBindRenderbuffer = (target, renderbuffer) => { + GLctx.bindRenderbuffer(target, GL.renderbuffers[renderbuffer]); + }; + + var _emscripten_glBindTexture = (target, texture) => { + GLctx.bindTexture(target, GL.textures[texture]); + }; + + + var _emscripten_glBindVertexArray = (vao) => { + GLctx.bindVertexArray(GL.vaos[vao]); + }; + var _glBindVertexArray = _emscripten_glBindVertexArray; + var _emscripten_glBindVertexArrayOES = _glBindVertexArray; + + var _emscripten_glBlendColor = (x0, x1, x2, x3) => GLctx.blendColor(x0, x1, x2, x3); + + var _emscripten_glBlendEquation = (x0) => GLctx.blendEquation(x0); + + var _emscripten_glBlendEquationSeparate = (x0, x1) => GLctx.blendEquationSeparate(x0, x1); + + var _emscripten_glBlendFunc = (x0, x1) => GLctx.blendFunc(x0, x1); + + var _emscripten_glBlendFuncSeparate = (x0, x1, x2, x3) => GLctx.blendFuncSeparate(x0, x1, x2, x3); + + var _emscripten_glBufferData = (target, size, data, usage) => { + + // 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 _emscripten_glBufferSubData = (target, offset, size, data) => { + GLctx.bufferSubData(target, offset, HEAPU8.subarray(data, data+size)); + }; + + var _emscripten_glCheckFramebufferStatus = (x0) => GLctx.checkFramebufferStatus(x0); + + var _emscripten_glClear = (x0) => GLctx.clear(x0); + + var _emscripten_glClearColor = (x0, x1, x2, x3) => GLctx.clearColor(x0, x1, x2, x3); + + var _emscripten_glClearDepthf = (x0) => GLctx.clearDepth(x0); + + var _emscripten_glClearStencil = (x0) => GLctx.clearStencil(x0); + + var _emscripten_glClipControlEXT = (origin, depth) => { + GLctx.extClipControl['clipControlEXT'](origin, depth); + }; + + var _emscripten_glColorMask = (red, green, blue, alpha) => { + GLctx.colorMask(!!red, !!green, !!blue, !!alpha); + }; + + var _emscripten_glCompileShader = (shader) => { + GLctx.compileShader(GL.shaders[shader]); + }; + + var _emscripten_glCompressedTexImage2D = (target, level, internalFormat, width, height, border, imageSize, data) => { + // `data` may be null here, which means "allocate uninitialized space but + // don't upload" in GLES parlance, but `compressedTexImage2D` requires the + // final data parameter, so we simply pass a heap view starting at zero + // effectively uploading whatever happens to be near address zero. See + // https://github.com/emscripten-core/emscripten/issues/19300. + GLctx.compressedTexImage2D(target, level, internalFormat, width, height, border, HEAPU8.subarray((data), data+imageSize)); + }; + + var _emscripten_glCompressedTexSubImage2D = (target, level, xoffset, yoffset, width, height, format, imageSize, data) => { + GLctx.compressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, HEAPU8.subarray((data), data+imageSize)); + }; + + var _emscripten_glCopyTexImage2D = (x0, x1, x2, x3, x4, x5, x6, x7) => GLctx.copyTexImage2D(x0, x1, x2, x3, x4, x5, x6, x7); + + var _emscripten_glCopyTexSubImage2D = (x0, x1, x2, x3, x4, x5, x6, x7) => GLctx.copyTexSubImage2D(x0, x1, x2, x3, x4, x5, x6, x7); + + var _emscripten_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 _emscripten_glCreateShader = (shaderType) => { + var id = GL.getNewId(GL.shaders); + GL.shaders[id] = GLctx.createShader(shaderType); + + return id; + }; + + var _emscripten_glCullFace = (x0) => GLctx.cullFace(x0); + + var _emscripten_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; + + } + }; + + var _emscripten_glDeleteFramebuffers = (n, framebuffers) => { + for (var i = 0; i < n; ++i) { + var id = HEAP32[(((framebuffers)+(i*4))>>2)]; + var framebuffer = GL.framebuffers[id]; + if (!framebuffer) continue; // GL spec: "glDeleteFramebuffers silently ignores 0s and names that do not correspond to existing framebuffer objects". + GLctx.deleteFramebuffer(framebuffer); + framebuffer.name = 0; + GL.framebuffers[id] = null; + } + }; + + var _emscripten_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 _emscripten_glDeleteQueriesEXT = (n, ids) => { + for (var i = 0; i < n; i++) { + var id = HEAP32[(((ids)+(i*4))>>2)]; + var query = GL.queries[id]; + if (!query) continue; // GL spec: "unused names in ids are ignored, as is the name zero." + GLctx.disjointTimerQueryExt['deleteQueryEXT'](query); + GL.queries[id] = null; + } + }; + + var _emscripten_glDeleteRenderbuffers = (n, renderbuffers) => { + for (var i = 0; i < n; i++) { + var id = HEAP32[(((renderbuffers)+(i*4))>>2)]; + var renderbuffer = GL.renderbuffers[id]; + if (!renderbuffer) continue; // GL spec: "glDeleteRenderbuffers silently ignores 0s and names that do not correspond to existing renderbuffer objects". + GLctx.deleteRenderbuffer(renderbuffer); + renderbuffer.name = 0; + GL.renderbuffers[id] = null; + } + }; + + var _emscripten_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 _emscripten_glDeleteTextures = (n, textures) => { + for (var i = 0; i < n; i++) { + var id = HEAP32[(((textures)+(i*4))>>2)]; + var texture = GL.textures[id]; + // GL spec: "glDeleteTextures silently ignores 0s and names that do not + // correspond to existing textures". + if (!texture) continue; + GLctx.deleteTexture(texture); + texture.name = 0; + GL.textures[id] = null; + } + }; + + + var _emscripten_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 _glDeleteVertexArrays = _emscripten_glDeleteVertexArrays; + var _emscripten_glDeleteVertexArraysOES = _glDeleteVertexArrays; + + var _emscripten_glDepthFunc = (x0) => GLctx.depthFunc(x0); + + var _emscripten_glDepthMask = (flag) => { + GLctx.depthMask(!!flag); + }; + + var _emscripten_glDepthRangef = (x0, x1) => GLctx.depthRange(x0, x1); + + var _emscripten_glDetachShader = (program, shader) => { + GLctx.detachShader(GL.programs[program], GL.shaders[shader]); + }; + + var _emscripten_glDisable = (x0) => GLctx.disable(x0); + + var _emscripten_glDisableVertexAttribArray = (index) => { + GLctx.disableVertexAttribArray(index); + }; + + var _emscripten_glDrawArrays = (mode, first, count) => { + + GLctx.drawArrays(mode, first, count); + + }; + + + var _emscripten_glDrawArraysInstanced = (mode, first, count, primcount) => { + GLctx.drawArraysInstanced(mode, first, count, primcount); + }; + var _glDrawArraysInstanced = _emscripten_glDrawArraysInstanced; + var _emscripten_glDrawArraysInstancedANGLE = _glDrawArraysInstanced; + + + var tempFixedLengthArray = []; + + var _emscripten_glDrawBuffers = (n, bufs) => { + + var bufArray = tempFixedLengthArray[n]; + for (var i = 0; i < n; i++) { + bufArray[i] = HEAP32[(((bufs)+(i*4))>>2)]; + } + + GLctx.drawBuffers(bufArray); + }; + var _glDrawBuffers = _emscripten_glDrawBuffers; + var _emscripten_glDrawBuffersWEBGL = _glDrawBuffers; + + var _emscripten_glDrawElements = (mode, count, type, indices) => { + + GLctx.drawElements(mode, count, type, indices); + + }; + + + var _emscripten_glDrawElementsInstanced = (mode, count, type, indices, primcount) => { + GLctx.drawElementsInstanced(mode, count, type, indices, primcount); + }; + var _glDrawElementsInstanced = _emscripten_glDrawElementsInstanced; + var _emscripten_glDrawElementsInstancedANGLE = _glDrawElementsInstanced; + + var _emscripten_glEnable = (x0) => GLctx.enable(x0); + + var _emscripten_glEnableVertexAttribArray = (index) => { + GLctx.enableVertexAttribArray(index); + }; + + var _emscripten_glEndQueryEXT = (target) => { + GLctx.disjointTimerQueryExt['endQueryEXT'](target); + }; + + var _emscripten_glFinish = () => GLctx.finish(); + + var _emscripten_glFlush = () => GLctx.flush(); + + var _emscripten_glFramebufferRenderbuffer = (target, attachment, renderbuffertarget, renderbuffer) => { + GLctx.framebufferRenderbuffer(target, attachment, renderbuffertarget, + GL.renderbuffers[renderbuffer]); + }; + + var _emscripten_glFramebufferTexture2D = (target, attachment, textarget, texture, level) => { + GLctx.framebufferTexture2D(target, attachment, textarget, + GL.textures[texture], level); + }; + + var _emscripten_glFrontFace = (x0) => GLctx.frontFace(x0); + + var _emscripten_glGenBuffers = (n, buffers) => { + GL.genObject(n, buffers, 'createBuffer', GL.buffers + ); + }; + + var _emscripten_glGenFramebuffers = (n, ids) => { + GL.genObject(n, ids, 'createFramebuffer', GL.framebuffers + ); + }; + + var _emscripten_glGenQueriesEXT = (n, ids) => { + for (var i = 0; i < n; i++) { + var query = GLctx.disjointTimerQueryExt['createQueryEXT'](); + if (!query) { + GL.recordError(0x502 /* GL_INVALID_OPERATION */); + while (i < n) HEAP32[(((ids)+(i++*4))>>2)] = 0; + return; + } + var id = GL.getNewId(GL.queries); + query.name = id; + GL.queries[id] = query; + HEAP32[(((ids)+(i*4))>>2)] = id; + } + }; + + var _emscripten_glGenRenderbuffers = (n, renderbuffers) => { + GL.genObject(n, renderbuffers, 'createRenderbuffer', GL.renderbuffers + ); + }; + + var _emscripten_glGenTextures = (n, textures) => { + GL.genObject(n, textures, 'createTexture', GL.textures + ); + }; + + + var _emscripten_glGenVertexArrays = (n, arrays) => { + GL.genObject(n, arrays, 'createVertexArray', GL.vaos + ); + }; + var _glGenVertexArrays = _emscripten_glGenVertexArrays; + var _emscripten_glGenVertexArraysOES = _glGenVertexArrays; + + var _emscripten_glGenerateMipmap = (x0) => GLctx.generateMipmap(x0); + + + var __glGetActiveAttribOrUniform = (funcName, program, index, bufSize, length, size, type, name) => { + program = GL.programs[program]; + var info = GLctx[funcName](program, index); + if (info) { + // If an error occurs, nothing will be written to length, size and type and name. + var numBytesWrittenExclNull = name && stringToUTF8(info.name, name, bufSize); + if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; + if (size) HEAP32[((size)>>2)] = info.size; + if (type) HEAP32[((type)>>2)] = info.type; + } + }; + + var _emscripten_glGetActiveAttrib = (program, index, bufSize, length, size, type, name) => + __glGetActiveAttribOrUniform('getActiveAttrib', program, index, bufSize, length, size, type, name); + + + var _emscripten_glGetActiveUniform = (program, index, bufSize, length, size, type, name) => + __glGetActiveAttribOrUniform('getActiveUniform', program, index, bufSize, length, size, type, name); + + var _emscripten_glGetAttachedShaders = (program, maxCount, count, shaders) => { + var result = GLctx.getAttachedShaders(GL.programs[program]); + var len = result.length; + if (len > maxCount) { + len = maxCount; + } + HEAP32[((count)>>2)] = len; + for (var i = 0; i < len; ++i) { + var id = GL.shaders.indexOf(result[i]); + HEAP32[(((shaders)+(i*4))>>2)] = id; + } + }; + + + var _emscripten_glGetAttribLocation = (program, name) => + GLctx.getAttribLocation(GL.programs[program], UTF8ToString(name)); + + 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!`); + }; + + var emscriptenWebGLGet = (name_, p, type) => { + // Guard against user passing a null pointer. + // Note that GLES2 spec does not say anything about how passing a null + // pointer should be treated. Testing on desktop core GL 3, the application + // crashes on glGetIntegerv to a null pointer, but better to report an error + // instead of doing anything random. + if (!p) { + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + var ret = undefined; + switch (name_) { // Handle a few trivial GLES values + case 0x8DFA: // GL_SHADER_COMPILER + ret = 1; + break; + case 0x8DF8: // GL_SHADER_BINARY_FORMATS + if (type != 0 && type != 1) { + GL.recordError(0x500); // GL_INVALID_ENUM + } + // Do not write anything to the out pointer, since no binary formats are + // supported. + return; + case 0x8DF9: // GL_NUM_SHADER_BINARY_FORMATS + ret = 0; + break; + case 0x86A2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS + // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete + // since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be + // queried for length), so implement it ourselves to allow C++ GLES2 + // code to get the length. + var formats = GLctx.getParameter(0x86A3 /*GL_COMPRESSED_TEXTURE_FORMATS*/); + ret = formats ? formats.length : 0; + break; + + } + + if (ret === undefined) { + var result = GLctx.getParameter(name_); + switch (typeof result) { + case "number": + ret = result; + break; + case "boolean": + ret = result ? 1 : 0; + break; + case "string": + GL.recordError(0x500); // GL_INVALID_ENUM + return; + case "object": + if (result === null) { + // null is a valid result for some (e.g., which buffer is bound - + // perhaps nothing is bound), but otherwise can mean an invalid + // name_, which we need to report as an error + switch (name_) { + case 0x8894: // ARRAY_BUFFER_BINDING + case 0x8B8D: // CURRENT_PROGRAM + case 0x8895: // ELEMENT_ARRAY_BUFFER_BINDING + case 0x8CA6: // FRAMEBUFFER_BINDING or DRAW_FRAMEBUFFER_BINDING + case 0x8CA7: // RENDERBUFFER_BINDING + case 0x8069: // TEXTURE_BINDING_2D + case 0x85B5: // WebGL 2 GL_VERTEX_ARRAY_BINDING, or WebGL 1 extension OES_vertex_array_object GL_VERTEX_ARRAY_BINDING_OES + case 0x8514: { // TEXTURE_BINDING_CUBE_MAP + ret = 0; + break; + } + default: { + GL.recordError(0x500); // GL_INVALID_ENUM + return; + } + } + } else if (result instanceof Float32Array || + result instanceof Uint32Array || + result instanceof Int32Array || + result instanceof Array) { + for (var i = 0; i < result.length; ++i) { + switch (type) { + case 0: HEAP32[(((p)+(i*4))>>2)] = result[i]; break; + case 2: HEAPF32[(((p)+(i*4))>>2)] = result[i]; break; + case 4: HEAP8[(p)+(i)] = result[i] ? 1 : 0; break; + } + } + return; + } else { + try { + ret = result.name | 0; + } catch(e) { + GL.recordError(0x500); // GL_INVALID_ENUM + err(`GL_INVALID_ENUM in glGet${type}v: Unknown object returned from WebGL getParameter(${name_})! (error: ${e})`); + return; + } + } + break; + default: + GL.recordError(0x500); // GL_INVALID_ENUM + err(`GL_INVALID_ENUM in glGet${type}v: Native code calling glGet${type}v(${name_}) and it returns ${result} of type ${typeof(result)}!`); + return; + } + } + + switch (type) { + case 1: writeI53ToI64(p, ret); break; + case 0: HEAP32[((p)>>2)] = ret; break; + case 2: HEAPF32[((p)>>2)] = ret; break; + case 4: HEAP8[p] = ret ? 1 : 0; break; + } + }; + + var _emscripten_glGetBooleanv = (name_, p) => emscriptenWebGLGet(name_, p, 4); + + var _emscripten_glGetBufferParameteriv = (target, value, data) => { + if (!data) { + // GLES2 specification does not specify how to behave if data is a null + // pointer. Since calling this function does not make sense if data == + // null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + HEAP32[((data)>>2)] = GLctx.getBufferParameter(target, value); + }; + + var _emscripten_glGetError = () => { + var error = GLctx.getError() || GL.lastError; + GL.lastError = 0/*GL_NO_ERROR*/; + return error; + }; + + + var _emscripten_glGetFloatv = (name_, p) => emscriptenWebGLGet(name_, p, 2); + + var _emscripten_glGetFramebufferAttachmentParameteriv = (target, attachment, pname, params) => { + var result = GLctx.getFramebufferAttachmentParameter(target, attachment, pname); + if (result instanceof WebGLRenderbuffer || + result instanceof WebGLTexture) { + result = result.name | 0; + } + HEAP32[((params)>>2)] = result; + }; + + + var _emscripten_glGetIntegerv = (name_, p) => emscriptenWebGLGet(name_, p, 0); + + var _emscripten_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 _emscripten_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 _emscripten_glGetQueryObjecti64vEXT = (id, pname, params) => { + if (!params) { + // GLES2 specification does not specify how to behave if params 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; + } + var query = GL.queries[id]; + var param; + { + param = GLctx.disjointTimerQueryExt['getQueryObjectEXT'](query, pname); + } + var ret; + if (typeof param == 'boolean') { + ret = param ? 1 : 0; + } else { + ret = param; + } + writeI53ToI64(params, ret); + }; + + var _emscripten_glGetQueryObjectivEXT = (id, pname, params) => { + if (!params) { + // GLES2 specification does not specify how to behave if params 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; + } + var query = GL.queries[id]; + var param = GLctx.disjointTimerQueryExt['getQueryObjectEXT'](query, pname); + var ret; + if (typeof param == 'boolean') { + ret = param ? 1 : 0; + } else { + ret = param; + } + HEAP32[((params)>>2)] = ret; + }; + + + var _glGetQueryObjecti64vEXT = _emscripten_glGetQueryObjecti64vEXT; + var _emscripten_glGetQueryObjectui64vEXT = _glGetQueryObjecti64vEXT; + + + var _glGetQueryObjectivEXT = _emscripten_glGetQueryObjectivEXT; + var _emscripten_glGetQueryObjectuivEXT = _glGetQueryObjectivEXT; + + var _emscripten_glGetQueryivEXT = (target, pname, params) => { + if (!params) { + // GLES2 specification does not specify how to behave if params 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; + } + HEAP32[((params)>>2)] = GLctx.disjointTimerQueryExt['getQueryEXT'](target, pname); + }; + + var _emscripten_glGetRenderbufferParameteriv = (target, pname, params) => { + if (!params) { + // GLES2 specification does not specify how to behave if params is a null pointer. Since calling this function does not make sense + // if params == null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + HEAP32[((params)>>2)] = GLctx.getRenderbufferParameter(target, pname); + }; + + + var _emscripten_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 _emscripten_glGetShaderPrecisionFormat = (shaderType, precisionType, range, precision) => { + var result = GLctx.getShaderPrecisionFormat(shaderType, precisionType); + HEAP32[((range)>>2)] = result.rangeMin; + HEAP32[(((range)+(4))>>2)] = result.rangeMax; + HEAP32[((precision)>>2)] = result.precision; + }; + + var _emscripten_glGetShaderSource = (shader, bufSize, length, source) => { + var result = GLctx.getShaderSource(GL.shaders[shader]); + if (!result) return; // If an error occurs, nothing will be written to length or source. + var numBytesWrittenExclNull = (bufSize > 0 && source) ? stringToUTF8(result, source, bufSize) : 0; + if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; + }; + + var _emscripten_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); + } + }; + + + + var stringToNewUTF8 = (str) => { + var size = lengthBytesUTF8(str) + 1; + var ret = _malloc(size); + if (ret) stringToUTF8(str, ret, size); + return ret; + }; + + + var webglGetExtensions = () => { + var exts = getEmscriptenSupportedExtensions(GLctx); + exts = exts.concat(exts.map((e) => "GL_" + e)); + return exts; + }; + + var _emscripten_glGetString = (name_) => { + var ret = GL.stringCache[name_]; + if (!ret) { + switch (name_) { + case 0x1F03 /* GL_EXTENSIONS */: + ret = stringToNewUTF8(webglGetExtensions().join(' ')); + break; + case 0x1F00 /* GL_VENDOR */: + case 0x1F01 /* GL_RENDERER */: + case 0x9245 /* UNMASKED_VENDOR_WEBGL */: + case 0x9246 /* UNMASKED_RENDERER_WEBGL */: + var s = GLctx.getParameter(name_); + if (!s) { + GL.recordError(0x500/*GL_INVALID_ENUM*/); + } + ret = s ? stringToNewUTF8(s) : 0; + break; + + case 0x1F02 /* GL_VERSION */: + var webGLVersion = GLctx.getParameter(0x1F02 /*GL_VERSION*/); + // return GLES version string corresponding to the version of the WebGL context + var glVersion = `OpenGL ES 2.0 (${webGLVersion})`; + ret = stringToNewUTF8(glVersion); + break; + case 0x8B8C /* GL_SHADING_LANGUAGE_VERSION */: + var glslVersion = GLctx.getParameter(0x8B8C /*GL_SHADING_LANGUAGE_VERSION*/); + // extract the version number 'N.M' from the string 'WebGL GLSL ES N.M ...' + var ver_re = /^WebGL GLSL ES ([0-9]\.[0-9][0-9]?)(?:$| .*)/; + var ver_num = glslVersion.match(ver_re); + if (ver_num !== null) { + if (ver_num[1].length == 3) ver_num[1] = ver_num[1] + '0'; // ensure minor version has 2 digits + glslVersion = `OpenGL ES GLSL ES ${ver_num[1]} (${glslVersion})`; + } + ret = stringToNewUTF8(glslVersion); + break; + default: + GL.recordError(0x500/*GL_INVALID_ENUM*/); + // fall through + } + GL.stringCache[name_] = ret; + } + return ret; + }; + + var _emscripten_glGetTexParameterfv = (target, pname, params) => { + if (!params) { + // GLES2 specification does not specify how to behave if params 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; + } + HEAPF32[((params)>>2)] = GLctx.getTexParameter(target, pname); + }; + + var _emscripten_glGetTexParameteriv = (target, pname, params) => { + if (!params) { + // GLES2 specification does not specify how to behave if params 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; + } + HEAP32[((params)>>2)] = GLctx.getTexParameter(target, 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 _emscripten_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 a 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 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*/); + } + }; + + + /** @suppress{checkTypes} */ + var emscriptenWebGLGetUniform = (program, location, params, type) => { + if (!params) { + // GLES2 specification does not specify how to behave if params is a null + // pointer. Since calling this function does not make sense if params == + // null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + program = GL.programs[program]; + webglPrepareUniformLocationsBeforeFirstUse(program); + var data = GLctx.getUniform(program, webglGetUniformLocation(location)); + if (typeof data == 'number' || typeof data == 'boolean') { + switch (type) { + case 0: HEAP32[((params)>>2)] = data; break; + case 2: HEAPF32[((params)>>2)] = data; break; + } + } else { + for (var i = 0; i < data.length; i++) { + switch (type) { + case 0: HEAP32[(((params)+(i*4))>>2)] = data[i]; break; + case 2: HEAPF32[(((params)+(i*4))>>2)] = data[i]; break; + } + } + } + }; + + var _emscripten_glGetUniformfv = (program, location, params) => { + emscriptenWebGLGetUniform(program, location, params, 2); + }; + + + var _emscripten_glGetUniformiv = (program, location, params) => { + emscriptenWebGLGetUniform(program, location, params, 0); + }; + + var _emscripten_glGetVertexAttribPointerv = (index, pname, pointer) => { + if (!pointer) { + // GLES2 specification does not specify how to behave if pointer is a null + // pointer. Since calling this function does not make sense if pointer == + // null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + HEAP32[((pointer)>>2)] = GLctx.getVertexAttribOffset(index, pname); + }; + + /** @suppress{checkTypes} */ + var emscriptenWebGLGetVertexAttrib = (index, pname, params, type) => { + if (!params) { + // GLES2 specification does not specify how to behave if params is a null + // pointer. Since calling this function does not make sense if params == + // null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + var data = GLctx.getVertexAttrib(index, pname); + if (pname == 0x889F/*VERTEX_ATTRIB_ARRAY_BUFFER_BINDING*/) { + HEAP32[((params)>>2)] = data && data["name"]; + } else if (typeof data == 'number' || typeof data == 'boolean') { + switch (type) { + case 0: HEAP32[((params)>>2)] = data; break; + case 2: HEAPF32[((params)>>2)] = data; break; + case 5: HEAP32[((params)>>2)] = Math.fround(data); break; + } + } else { + for (var i = 0; i < data.length; i++) { + switch (type) { + case 0: HEAP32[(((params)+(i*4))>>2)] = data[i]; break; + case 2: HEAPF32[(((params)+(i*4))>>2)] = data[i]; break; + case 5: HEAP32[(((params)+(i*4))>>2)] = Math.fround(data[i]); break; + } + } + } + }; + + var _emscripten_glGetVertexAttribfv = (index, pname, params) => { + // N.B. This function may only be called if the vertex attribute was + // specified using the function glVertexAttrib*f(), otherwise the results + // are undefined. (GLES3 spec 6.1.12) + emscriptenWebGLGetVertexAttrib(index, pname, params, 2); + }; + + + var _emscripten_glGetVertexAttribiv = (index, pname, params) => { + // N.B. This function may only be called if the vertex attribute was + // specified using the function glVertexAttrib*f(), otherwise the results + // are undefined. (GLES3 spec 6.1.12) + emscriptenWebGLGetVertexAttrib(index, pname, params, 5); + }; + + var _emscripten_glHint = (x0, x1) => GLctx.hint(x0, x1); + + var _emscripten_glIsBuffer = (buffer) => { + var b = GL.buffers[buffer]; + if (!b) return 0; + return GLctx.isBuffer(b); + }; + + var _emscripten_glIsEnabled = (x0) => GLctx.isEnabled(x0); + + var _emscripten_glIsFramebuffer = (framebuffer) => { + var fb = GL.framebuffers[framebuffer]; + if (!fb) return 0; + return GLctx.isFramebuffer(fb); + }; + + var _emscripten_glIsProgram = (program) => { + program = GL.programs[program]; + if (!program) return 0; + return GLctx.isProgram(program); + }; + + var _emscripten_glIsQueryEXT = (id) => { + var query = GL.queries[id]; + if (!query) return 0; + return GLctx.disjointTimerQueryExt['isQueryEXT'](query); + }; + + var _emscripten_glIsRenderbuffer = (renderbuffer) => { + var rb = GL.renderbuffers[renderbuffer]; + if (!rb) return 0; + return GLctx.isRenderbuffer(rb); + }; + + var _emscripten_glIsShader = (shader) => { + var s = GL.shaders[shader]; + if (!s) return 0; + return GLctx.isShader(s); + }; + + var _emscripten_glIsTexture = (id) => { + var texture = GL.textures[id]; + if (!texture) return 0; + return GLctx.isTexture(texture); + }; + + + var _emscripten_glIsVertexArray = (array) => { + + var vao = GL.vaos[array]; + if (!vao) return 0; + return GLctx.isVertexArray(vao); + }; + var _glIsVertexArray = _emscripten_glIsVertexArray; + var _emscripten_glIsVertexArrayOES = _glIsVertexArray; + + var _emscripten_glLineWidth = (x0) => GLctx.lineWidth(x0); + + var _emscripten_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 _emscripten_glPixelStorei = (pname, param) => { + if (pname == 3317) { + GL.unpackAlignment = param; + } else if (pname == 3314) { + GL.unpackRowLength = param; + } + GLctx.pixelStorei(pname, param); + }; + + var _emscripten_glPolygonModeWEBGL = (face, mode) => { + GLctx.webglPolygonMode['polygonModeWEBGL'](face, mode); + }; + + var _emscripten_glPolygonOffset = (x0, x1) => GLctx.polygonOffset(x0, x1); + + var _emscripten_glPolygonOffsetClampEXT = (factor, units, clamp) => { + GLctx.extPolygonOffsetClamp['polygonOffsetClampEXT'](factor, units, clamp); + }; + + var _emscripten_glQueryCounterEXT = (id, target) => { + GLctx.disjointTimerQueryExt['queryCounterEXT'](GL.queries[id], target); + }; + + var computeUnpackAlignedImageSize = (width, height, sizePerPixel) => { + function roundedToNextMultipleOf(x, y) { + return (x + y - 1) & -y; + } + var plainRowSize = (GL.unpackRowLength || width) * sizePerPixel; + var alignedRowSize = roundedToNextMultipleOf(plainRowSize, GL.unpackAlignment); + return height * alignedRowSize; + }; + + var colorChannelsInGlTextureFormat = (format) => { + // Micro-optimizations for size: map format to size by subtracting smallest + // enum value (0x1902) from all values first. Also omit the most common + // size value (1) from the list, which is assumed by formats not on the + // list. + var colorChannels = { + // 0x1902 /* GL_DEPTH_COMPONENT */ - 0x1902: 1, + // 0x1906 /* GL_ALPHA */ - 0x1902: 1, + 5: 3, + 6: 4, + // 0x1909 /* GL_LUMINANCE */ - 0x1902: 1, + 8: 2, + 29502: 3, + 29504: 4, + }; + return colorChannels[format - 0x1902]||1; + }; + + var heapObjectForWebGLType = (type) => { + // Micro-optimization for size: Subtract lowest GL enum number (0x1400/* GL_BYTE */) from type to compare + // smaller values for the heap, for shorter generated code size. + // Also the type HEAPU16 is not tested for explicitly, but any unrecognized type will return out HEAPU16. + // (since most types are HEAPU16) + type -= 0x1400; + + if (type == 1) return HEAPU8; + + if (type == 4) return HEAP32; + + if (type == 6) return HEAPF32; + + if (type == 5 + || type == 28922 + ) + return HEAPU32; + + return HEAPU16; + }; + + var toTypedArrayIndex = (pointer, heap) => + pointer >>> (31 - Math.clz32(heap.BYTES_PER_ELEMENT)); + + var emscriptenWebGLGetTexPixelData = (type, format, width, height, pixels, internalFormat) => { + var heap = heapObjectForWebGLType(type); + var sizePerPixel = colorChannelsInGlTextureFormat(format) * heap.BYTES_PER_ELEMENT; + var bytes = computeUnpackAlignedImageSize(width, height, sizePerPixel); + return heap.subarray(toTypedArrayIndex(pixels, heap), toTypedArrayIndex(pixels + bytes, heap)); + }; + + var _emscripten_glReadPixels = (x, y, width, height, format, type, pixels) => { + var pixelData = emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, format); + if (!pixelData) { + GL.recordError(0x500/*GL_INVALID_ENUM*/); + return; + } + GLctx.readPixels(x, y, width, height, format, type, pixelData); + }; + + var _emscripten_glReleaseShaderCompiler = () => { + // NOP (as allowed by GLES 2.0 spec) + }; + + var _emscripten_glRenderbufferStorage = (x0, x1, x2, x3) => GLctx.renderbufferStorage(x0, x1, x2, x3); + + var _emscripten_glSampleCoverage = (value, invert) => { + GLctx.sampleCoverage(value, !!invert); + }; + + var _emscripten_glScissor = (x0, x1, x2, x3) => GLctx.scissor(x0, x1, x2, x3); + + var _emscripten_glShaderBinary = (count, shaders, binaryformat, binary, length) => { + GL.recordError(0x500/*GL_INVALID_ENUM*/); + }; + + var _emscripten_glShaderSource = (shader, count, string, length) => { + var source = GL.getSource(shader, count, string, length); + + GLctx.shaderSource(GL.shaders[shader], source); + }; + + var _emscripten_glStencilFunc = (x0, x1, x2) => GLctx.stencilFunc(x0, x1, x2); + + var _emscripten_glStencilFuncSeparate = (x0, x1, x2, x3) => GLctx.stencilFuncSeparate(x0, x1, x2, x3); + + var _emscripten_glStencilMask = (x0) => GLctx.stencilMask(x0); + + var _emscripten_glStencilMaskSeparate = (x0, x1) => GLctx.stencilMaskSeparate(x0, x1); + + var _emscripten_glStencilOp = (x0, x1, x2) => GLctx.stencilOp(x0, x1, x2); + + var _emscripten_glStencilOpSeparate = (x0, x1, x2, x3) => GLctx.stencilOpSeparate(x0, x1, x2, x3); + + + var _emscripten_glTexImage2D = (target, level, internalFormat, width, height, border, format, type, pixels) => { + var pixelData = pixels ? emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, internalFormat) : null; + GLctx.texImage2D(target, level, internalFormat, width, height, border, format, type, pixelData); + }; + + var _emscripten_glTexParameterf = (x0, x1, x2) => GLctx.texParameterf(x0, x1, x2); + + var _emscripten_glTexParameterfv = (target, pname, params) => { + var param = HEAPF32[((params)>>2)]; + GLctx.texParameterf(target, pname, param); + }; + + var _emscripten_glTexParameteri = (x0, x1, x2) => GLctx.texParameteri(x0, x1, x2); + + var _emscripten_glTexParameteriv = (target, pname, params) => { + var param = HEAP32[((params)>>2)]; + GLctx.texParameteri(target, pname, param); + }; + + + var _emscripten_glTexSubImage2D = (target, level, xoffset, yoffset, width, height, format, type, pixels) => { + var pixelData = pixels ? emscriptenWebGLGetTexPixelData(type, format, width, height, pixels, 0) : null; + GLctx.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixelData); + }; + + + var _emscripten_glUniform1f = (location, v0) => { + GLctx.uniform1f(webglGetUniformLocation(location), v0); + }; + + + var miniTempWebGLFloatBuffers = []; + + var _emscripten_glUniform1fv = (location, count, value) => { + + if (count <= 288) { + // avoid allocation when uploading few enough uniforms + var view = miniTempWebGLFloatBuffers[count]; + for (var i = 0; i < count; ++i) { + view[i] = HEAPF32[(((value)+(4*i))>>2)]; + } + } else + { + var view = HEAPF32.subarray((((value)>>2)), ((value+count*4)>>2)); + } + GLctx.uniform1fv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform1i = (location, v0) => { + GLctx.uniform1i(webglGetUniformLocation(location), v0); + }; + + + var miniTempWebGLIntBuffers = []; + + var _emscripten_glUniform1iv = (location, count, value) => { + + if (count <= 288) { + // avoid allocation when uploading few enough uniforms + var view = miniTempWebGLIntBuffers[count]; + for (var i = 0; i < count; ++i) { + view[i] = HEAP32[(((value)+(4*i))>>2)]; + } + } else + { + var view = HEAP32.subarray((((value)>>2)), ((value+count*4)>>2)); + } + GLctx.uniform1iv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform2f = (location, v0, v1) => { + GLctx.uniform2f(webglGetUniformLocation(location), v0, v1); + }; + + + + var _emscripten_glUniform2fv = (location, count, value) => { + + if (count <= 144) { + // avoid allocation when uploading few enough uniforms + count *= 2; + var view = miniTempWebGLFloatBuffers[count]; + for (var i = 0; i < count; i += 2) { + view[i] = HEAPF32[(((value)+(4*i))>>2)]; + view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)]; + } + } else + { + var view = HEAPF32.subarray((((value)>>2)), ((value+count*8)>>2)); + } + GLctx.uniform2fv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform2i = (location, v0, v1) => { + GLctx.uniform2i(webglGetUniformLocation(location), v0, v1); + }; + + + + var _emscripten_glUniform2iv = (location, count, value) => { + + if (count <= 144) { + // avoid allocation when uploading few enough uniforms + count *= 2; + var view = miniTempWebGLIntBuffers[count]; + for (var i = 0; i < count; i += 2) { + view[i] = HEAP32[(((value)+(4*i))>>2)]; + view[i+1] = HEAP32[(((value)+(4*i+4))>>2)]; + } + } else + { + var view = HEAP32.subarray((((value)>>2)), ((value+count*8)>>2)); + } + GLctx.uniform2iv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform3f = (location, v0, v1, v2) => { + GLctx.uniform3f(webglGetUniformLocation(location), v0, v1, v2); + }; + + + + var _emscripten_glUniform3fv = (location, count, value) => { + + if (count <= 96) { + // avoid allocation when uploading few enough uniforms + count *= 3; + var view = miniTempWebGLFloatBuffers[count]; + for (var i = 0; i < count; i += 3) { + view[i] = HEAPF32[(((value)+(4*i))>>2)]; + view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)]; + view[i+2] = HEAPF32[(((value)+(4*i+8))>>2)]; + } + } else + { + var view = HEAPF32.subarray((((value)>>2)), ((value+count*12)>>2)); + } + GLctx.uniform3fv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform3i = (location, v0, v1, v2) => { + GLctx.uniform3i(webglGetUniformLocation(location), v0, v1, v2); + }; + + + + var _emscripten_glUniform3iv = (location, count, value) => { + + if (count <= 96) { + // avoid allocation when uploading few enough uniforms + count *= 3; + var view = miniTempWebGLIntBuffers[count]; + for (var i = 0; i < count; i += 3) { + view[i] = HEAP32[(((value)+(4*i))>>2)]; + view[i+1] = HEAP32[(((value)+(4*i+4))>>2)]; + view[i+2] = HEAP32[(((value)+(4*i+8))>>2)]; + } + } else + { + var view = HEAP32.subarray((((value)>>2)), ((value+count*12)>>2)); + } + GLctx.uniform3iv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform4f = (location, v0, v1, v2, v3) => { + GLctx.uniform4f(webglGetUniformLocation(location), v0, v1, v2, v3); + }; + + + + var _emscripten_glUniform4fv = (location, count, value) => { + + if (count <= 72) { + // avoid allocation when uploading few enough uniforms + var view = miniTempWebGLFloatBuffers[4*count]; + // hoist the heap out of the loop for size and for pthreads+growth. + var heap = HEAPF32; + value = ((value)>>2); + count *= 4; + for (var i = 0; i < count; i += 4) { + 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]; + } + } else + { + var view = HEAPF32.subarray((((value)>>2)), ((value+count*16)>>2)); + } + GLctx.uniform4fv(webglGetUniformLocation(location), view); + }; + + + var _emscripten_glUniform4i = (location, v0, v1, v2, v3) => { + GLctx.uniform4i(webglGetUniformLocation(location), v0, v1, v2, v3); + }; + + + + var _emscripten_glUniform4iv = (location, count, value) => { + + if (count <= 72) { + // avoid allocation when uploading few enough uniforms + count *= 4; + var view = miniTempWebGLIntBuffers[count]; + for (var i = 0; i < count; i += 4) { + view[i] = HEAP32[(((value)+(4*i))>>2)]; + view[i+1] = HEAP32[(((value)+(4*i+4))>>2)]; + view[i+2] = HEAP32[(((value)+(4*i+8))>>2)]; + view[i+3] = HEAP32[(((value)+(4*i+12))>>2)]; + } + } else + { + var view = HEAP32.subarray((((value)>>2)), ((value+count*16)>>2)); + } + GLctx.uniform4iv(webglGetUniformLocation(location), view); + }; + + + + var _emscripten_glUniformMatrix2fv = (location, count, transpose, value) => { + + if (count <= 72) { + // avoid allocation when uploading few enough uniforms + count *= 4; + var view = miniTempWebGLFloatBuffers[count]; + for (var i = 0; i < count; i += 4) { + view[i] = HEAPF32[(((value)+(4*i))>>2)]; + view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)]; + view[i+2] = HEAPF32[(((value)+(4*i+8))>>2)]; + view[i+3] = HEAPF32[(((value)+(4*i+12))>>2)]; + } + } else + { + var view = HEAPF32.subarray((((value)>>2)), ((value+count*16)>>2)); + } + GLctx.uniformMatrix2fv(webglGetUniformLocation(location), !!transpose, view); + }; + + + + var _emscripten_glUniformMatrix3fv = (location, count, transpose, value) => { + + if (count <= 32) { + // avoid allocation when uploading few enough uniforms + count *= 9; + var view = miniTempWebGLFloatBuffers[count]; + for (var i = 0; i < count; i += 9) { + view[i] = HEAPF32[(((value)+(4*i))>>2)]; + view[i+1] = HEAPF32[(((value)+(4*i+4))>>2)]; + view[i+2] = HEAPF32[(((value)+(4*i+8))>>2)]; + view[i+3] = HEAPF32[(((value)+(4*i+12))>>2)]; + view[i+4] = HEAPF32[(((value)+(4*i+16))>>2)]; + view[i+5] = HEAPF32[(((value)+(4*i+20))>>2)]; + view[i+6] = HEAPF32[(((value)+(4*i+24))>>2)]; + view[i+7] = HEAPF32[(((value)+(4*i+28))>>2)]; + view[i+8] = HEAPF32[(((value)+(4*i+32))>>2)]; + } + } else + { + var view = HEAPF32.subarray((((value)>>2)), ((value+count*36)>>2)); + } + GLctx.uniformMatrix3fv(webglGetUniformLocation(location), !!transpose, view); + }; + + + + var _emscripten_glUniformMatrix4fv = (location, count, transpose, value) => { + + 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 _emscripten_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 _emscripten_glValidateProgram = (program) => { + GLctx.validateProgram(GL.programs[program]); + }; + + var _emscripten_glVertexAttrib1f = (x0, x1) => GLctx.vertexAttrib1f(x0, x1); + + var _emscripten_glVertexAttrib1fv = (index, v) => { + + GLctx.vertexAttrib1f(index, HEAPF32[v>>2]); + }; + + var _emscripten_glVertexAttrib2f = (x0, x1, x2) => GLctx.vertexAttrib2f(x0, x1, x2); + + var _emscripten_glVertexAttrib2fv = (index, v) => { + + GLctx.vertexAttrib2f(index, HEAPF32[v>>2], HEAPF32[v+4>>2]); + }; + + var _emscripten_glVertexAttrib3f = (x0, x1, x2, x3) => GLctx.vertexAttrib3f(x0, x1, x2, x3); + + var _emscripten_glVertexAttrib3fv = (index, v) => { + + GLctx.vertexAttrib3f(index, HEAPF32[v>>2], HEAPF32[v+4>>2], HEAPF32[v+8>>2]); + }; + + var _emscripten_glVertexAttrib4f = (x0, x1, x2, x3, x4) => GLctx.vertexAttrib4f(x0, x1, x2, x3, x4); + + var _emscripten_glVertexAttrib4fv = (index, v) => { + + GLctx.vertexAttrib4f(index, HEAPF32[v>>2], HEAPF32[v+4>>2], HEAPF32[v+8>>2], HEAPF32[v+12>>2]); + }; + + + var _emscripten_glVertexAttribDivisor = (index, divisor) => { + GLctx.vertexAttribDivisor(index, divisor); + }; + var _glVertexAttribDivisor = _emscripten_glVertexAttribDivisor; + var _emscripten_glVertexAttribDivisorANGLE = _glVertexAttribDivisor; + + var _emscripten_glVertexAttribPointer = (index, size, type, normalized, stride, ptr) => { + GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr); + }; + + var _emscripten_glViewport = (x0, x1, x2, x3) => GLctx.viewport(x0, x1, x2, x3); + + 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 oldHeapSize = wasmMemory.buffer.byteLength; + var pages = ((size - oldHeapSize + 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 ${oldHeapSize} 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; + }; + + /** @suppress {checkTypes} */ + var _emscripten_sample_gamepad_data = () => { + try { + if (navigator.getGamepads) return (JSEvents.lastGamepadState = navigator.getGamepads()) + ? 0 : -1; + } catch(e) { + err(`navigator.getGamepads() exists, but failed to execute with exception ${e}. Disabling Gamepad access.`); + navigator.getGamepads = null; // Disable getGamepads() so that it won't be attempted to be used again. + } + return -1; + }; + + + + + + var wasmTableMirror = []; + + + var getWasmTableEntry = (funcPtr) => { + var func = wasmTableMirror[funcPtr]; + if (!func) { + /** @suppress {checkTypes} */ + wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr); + } + /** @suppress {checkTypes} */ + assert(wasmTable.get(funcPtr) == func, 'JavaScript-side Wasm function table mirror is out of date!'); + return func; + }; + var registerFocusEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 256; + JSEvents.focusEvent ||= _malloc(eventSize); + + var focusEventHandlerFunc = (e) => { + var nodeName = JSEvents.getNodeNameForTarget(e.target); + var id = e.target.id ? e.target.id : ''; + + var focusEvent = JSEvents.focusEvent; + stringToUTF8(nodeName, focusEvent + 0, 128); + stringToUTF8(id, focusEvent + 128, 128); + + if (getWasmTableEntry(callbackfunc)(eventTypeId, focusEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target: findEventTarget(target), + eventTypeString, + eventTypeId, + userData, + callbackfunc, + handlerFunc: focusEventHandlerFunc, + useCapture + }; + return JSEvents.registerOrRemoveHandler(eventHandler); + }; + var _emscripten_set_blur_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerFocusEventCallback(target, userData, useCapture, callbackfunc, 12, "blur", targetThread); + + 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) => { + var eventSize = 64; + JSEvents.mouseEvent ||= _malloc(eventSize); + target = findEventTarget(target); + + var mouseEventHandlerFunc = (e) => { + // 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, + eventTypeId, + userData, + 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 _emscripten_set_focus_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerFocusEventCallback(target, userData, useCapture, callbackfunc, 13, "focus", targetThread); + + + + + + function getFullscreenElement() { + return document.fullscreenElement || document.mozFullScreenElement || + document.webkitFullscreenElement || document.webkitCurrentFullScreenElement || + document.msFullscreenElement; + } + var fillFullscreenChangeEventData = (eventStruct) => { + var fullscreenElement = getFullscreenElement(); + var isFullscreen = !!fullscreenElement; + // Assigning a boolean to HEAP32 with expected type coercion. + /** @suppress{checkTypes} */ + HEAP8[eventStruct] = isFullscreen; + HEAP8[(eventStruct)+(1)] = JSEvents.fullscreenEnabled(); + // If transitioning to fullscreen, report info about the element that is now fullscreen. + // If transitioning to windowed mode, report info about the element that just was fullscreen. + var reportedElement = isFullscreen ? fullscreenElement : JSEvents.previousFullscreenElement; + var nodeName = JSEvents.getNodeNameForTarget(reportedElement); + var id = reportedElement?.id || ''; + stringToUTF8(nodeName, eventStruct + 2, 128); + stringToUTF8(id, eventStruct + 130, 128); + HEAP32[(((eventStruct)+(260))>>2)] = reportedElement ? reportedElement.clientWidth : 0; + HEAP32[(((eventStruct)+(264))>>2)] = reportedElement ? reportedElement.clientHeight : 0; + HEAP32[(((eventStruct)+(268))>>2)] = screen.width; + HEAP32[(((eventStruct)+(272))>>2)] = screen.height; + if (isFullscreen) { + JSEvents.previousFullscreenElement = fullscreenElement; + } + }; + + + var registerFullscreenChangeEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 276; + JSEvents.fullscreenChangeEvent ||= _malloc(eventSize); + + var fullscreenChangeEventHandlerFunc = (e) => { + var fullscreenChangeEvent = JSEvents.fullscreenChangeEvent; + fillFullscreenChangeEventData(fullscreenChangeEvent); + + if (getWasmTableEntry(callbackfunc)(eventTypeId, fullscreenChangeEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target, + eventTypeString, + eventTypeId, + userData, + callbackfunc, + handlerFunc: fullscreenChangeEventHandlerFunc, + useCapture + }; + return JSEvents.registerOrRemoveHandler(eventHandler); + }; + + var _emscripten_set_fullscreenchange_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => { + if (!JSEvents.fullscreenEnabled()) return -1; + target = findEventTarget(target); + if (!target) return -4; + + // As of Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitfullscreenchange. TODO: revisit this check once Safari ships unprefixed version. + // TODO: When this block is removed, also change test/test_html5_remove_event_listener.c test expectation on emscripten_set_fullscreenchange_callback(). + registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, 19, "webkitfullscreenchange", targetThread); + + return registerFullscreenChangeEventCallback(target, userData, useCapture, callbackfunc, 19, "fullscreenchange", targetThread); + }; + + + + + + var registerGamepadEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 1240; + JSEvents.gamepadEvent ||= _malloc(eventSize); + + var gamepadEventHandlerFunc = (e) => { + var gamepadEvent = JSEvents.gamepadEvent; + fillGamepadEventData(gamepadEvent, e["gamepad"]); + + if (getWasmTableEntry(callbackfunc)(eventTypeId, gamepadEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target: findEventTarget(target), + allowsDeferredCalls: true, + eventTypeString, + eventTypeId, + userData, + callbackfunc, + handlerFunc: gamepadEventHandlerFunc, + useCapture + }; + return JSEvents.registerOrRemoveHandler(eventHandler); + }; + + var _emscripten_set_gamepadconnected_callback_on_thread = (userData, useCapture, callbackfunc, targetThread) => { + if (_emscripten_sample_gamepad_data()) return -1; + return registerGamepadEventCallback(2, userData, useCapture, callbackfunc, 26, "gamepadconnected", targetThread); + }; + + + var _emscripten_set_gamepaddisconnected_callback_on_thread = (userData, useCapture, callbackfunc, targetThread) => { + if (_emscripten_sample_gamepad_data()) return -1; + return registerGamepadEventCallback(2, userData, useCapture, callbackfunc, 27, "gamepaddisconnected", targetThread); + }; + + + 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)); + }; + + + /** @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 { + return func(); + } catch (e) { + handleException(e); + } finally { + maybeExit(); + } + }; + + var _emscripten_set_main_loop_timing = (mode, value) => { + MainLoop.timingMode = mode; + MainLoop.timingValue = value; + + if (!MainLoop.func) { + err('emscripten_set_main_loop_timing: Cannot set timing mode for main loop since a main loop does not exist! Call emscripten_set_main_loop first to set one up.'); + return 1; // Return non-zero on failure, can't set timing mode when there is no main loop. + } + + if (!MainLoop.running) { + + MainLoop.running = true; + } + if (mode == 0) { + MainLoop.scheduler = function MainLoop_scheduler_setTimeout() { + var timeUntilNextTick = Math.max(0, MainLoop.tickStartTime + value - _emscripten_get_now())|0; + setTimeout(MainLoop.runner, timeUntilNextTick); // doing this each time means that on exception, we stop + }; + } else if (mode == 1) { + MainLoop.scheduler = function MainLoop_scheduler_rAF() { + MainLoop.requestAnimationFrame(MainLoop.runner); + }; + } else { + assert(mode == 2); + if (!MainLoop.setImmediate) { + if (globalThis.setImmediate) { + MainLoop.setImmediate = setImmediate; + } else { + // Emulate setImmediate. (note: not a complete polyfill, we don't emulate clearImmediate() to keep code size to minimum, since not needed) + var setImmediates = []; + var emscriptenMainLoopMessageId = 'setimmediate'; + /** @param {Event} event */ + var MainLoop_setImmediate_messageHandler = (event) => { + // When called in current thread or Worker, the main loop ID is structured slightly different to accommodate for --proxy-to-worker runtime listening to Worker events, + // so check for both cases. + if (event.data === emscriptenMainLoopMessageId || event.data.target === emscriptenMainLoopMessageId) { + event.stopPropagation(); + setImmediates.shift()(); + } + }; + addEventListener("message", MainLoop_setImmediate_messageHandler, true); + MainLoop.setImmediate = /** @type{function(function(): ?, ...?): number} */((func) => { + setImmediates.push(func); + if (ENVIRONMENT_IS_WORKER) { + Module['setImmediates'] ??= []; + Module['setImmediates'].push(func); + postMessage({target: emscriptenMainLoopMessageId}); // In --proxy-to-worker, route the message via proxyClient.js + } else postMessage(emscriptenMainLoopMessageId, "*"); // On the main thread, can just send the message to itself. + }); + } + } + MainLoop.scheduler = function MainLoop_scheduler_setImmediate() { + MainLoop.setImmediate(MainLoop.runner); + }; + } + return 0; + }; + var MainLoop = { + running:false, + scheduler:null, + currentlyRunningMainloop:0, + func:null, + arg:0, + timingMode:0, + timingValue:0, + currentFrameNumber:0, + queue:[], + preMainLoop:[], + postMainLoop:[], + pause() { + MainLoop.scheduler = null; + // Incrementing this signals the previous main loop that it's now become old, and it must return. + MainLoop.currentlyRunningMainloop++; + }, + resume() { + MainLoop.currentlyRunningMainloop++; + var timingMode = MainLoop.timingMode; + var timingValue = MainLoop.timingValue; + var func = MainLoop.func; + MainLoop.func = null; + // do not set timing and call scheduler, we will do it on the next lines + setMainLoop(func, 0, false, MainLoop.arg, true); + _emscripten_set_main_loop_timing(timingMode, timingValue); + MainLoop.scheduler(); + }, + updateStatus() { + if (Module['setStatus']) { + var message = Module['statusMessage'] || 'Please wait...'; + var remaining = MainLoop.remainingBlockers ?? 0; + var expected = MainLoop.expectedBlockers ?? 0; + if (remaining) { + if (remaining < expected) { + Module['setStatus'](`{message} ({expected - remaining}/{expected})`); + } else { + Module['setStatus'](message); + } + } else { + Module['setStatus'](''); + } + } + }, + init() { + Module['preMainLoop'] && MainLoop.preMainLoop.push(Module['preMainLoop']); + Module['postMainLoop'] && MainLoop.postMainLoop.push(Module['postMainLoop']); + }, + runIter(func) { + if (ABORT) return; + for (var pre of MainLoop.preMainLoop) { + if (pre() === false) { + return; // |return false| skips a frame + } + } + callUserCallback(func); + for (var post of MainLoop.postMainLoop) { + post(); + } + checkStackCookie(); + }, + nextRAF:0, + fakeRequestAnimationFrame(func) { + // try to keep 60fps between calls to here + var now = Date.now(); + if (MainLoop.nextRAF === 0) { + MainLoop.nextRAF = now + 1000/60; + } else { + while (now + 2 >= MainLoop.nextRAF) { // fudge a little, to avoid timer jitter causing us to do lots of delay:0 + MainLoop.nextRAF += 1000/60; + } + } + var delay = Math.max(MainLoop.nextRAF - now, 0); + setTimeout(func, delay); + }, + requestAnimationFrame(func) { + if (globalThis.requestAnimationFrame) { + requestAnimationFrame(func); + } else { + MainLoop.fakeRequestAnimationFrame(func); + } + }, + }; + + + + + /** + * @param {number=} arg + * @param {boolean=} noSetTiming + */ + var setMainLoop = (iterFunc, fps, simulateInfiniteLoop, arg, noSetTiming) => { + assert(!MainLoop.func, 'emscripten_set_main_loop: there can only be one main loop function at once: call emscripten_cancel_main_loop to cancel the previous one before setting a new one with different parameters.'); + MainLoop.func = iterFunc; + MainLoop.arg = arg; + + var thisMainLoopId = MainLoop.currentlyRunningMainloop; + function checkIsRunning() { + if (thisMainLoopId < MainLoop.currentlyRunningMainloop) { + + maybeExit(); + return false; + } + return true; + } + + // We create the loop runner here but it is not actually running until + // _emscripten_set_main_loop_timing is called (which might happen at a + // later time). This member signifies that the current runner has not + // yet been started so that we can call runtimeKeepalivePush when it + // gets its timing set for the first time. + MainLoop.running = false; + MainLoop.runner = function MainLoop_runner() { + if (ABORT) return; + if (MainLoop.queue.length > 0) { + var start = Date.now(); + var blocker = MainLoop.queue.shift(); + blocker.func(blocker.arg); + if (MainLoop.remainingBlockers) { + var remaining = MainLoop.remainingBlockers; + var next = remaining%1 == 0 ? remaining-1 : Math.floor(remaining); + if (blocker.counted) { + MainLoop.remainingBlockers = next; + } else { + // not counted, but move the progress along a tiny bit + next = next + 0.5; // do not steal all the next one's progress + MainLoop.remainingBlockers = (8*remaining + next)/9; + } + } + MainLoop.updateStatus(); + + // catches pause/resume main loop from blocker execution + if (!checkIsRunning()) return; + + setTimeout(MainLoop.runner, 0); + return; + } + + // catch pauses from non-main loop sources + if (!checkIsRunning()) return; + + // Implement very basic swap interval control + MainLoop.currentFrameNumber = MainLoop.currentFrameNumber + 1 | 0; + if (MainLoop.timingMode == 1 && MainLoop.timingValue > 1 && MainLoop.currentFrameNumber % MainLoop.timingValue != 0) { + // Not the scheduled time to render this frame - skip. + MainLoop.scheduler(); + return; + } else if (MainLoop.timingMode == 0) { + MainLoop.tickStartTime = _emscripten_get_now(); + if (Module['ctx']) { + warnOnce('Looks like you are rendering without using requestAnimationFrame for the main loop. You should use 0 for the frame rate in emscripten_set_main_loop in order to use requestAnimationFrame, as that can greatly improve your frame rates!'); + } + } + + MainLoop.runIter(iterFunc); + + // catch pauses from the main loop itself + if (!checkIsRunning()) return; + + MainLoop.scheduler(); + } + + if (!noSetTiming) { + if (fps > 0) { + _emscripten_set_main_loop_timing(0, 1000.0 / fps); + } else { + // Do rAF by rendering each frame (no decimating) + _emscripten_set_main_loop_timing(1, 1); + } + + MainLoop.scheduler(); + } + + if (simulateInfiniteLoop) { + throw 'unwind'; + } + }; + + var _emscripten_set_main_loop = (func, fps, simulateInfiniteLoop) => { + var iterFunc = getWasmTableEntry(func); + setMainLoop(iterFunc, fps, simulateInfiniteLoop); + }; + + var _emscripten_set_mousemove_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerMouseEventCallback(target, userData, useCapture, callbackfunc, 8, "mousemove", targetThread); + + + + var fillPointerlockChangeEventData = (eventStruct) => { + var pointerLockElement = document.pointerLockElement; + var isPointerlocked = !!pointerLockElement; + // Assigning a boolean to HEAP32 with expected type coercion. + /** @suppress{checkTypes} */ + HEAP8[eventStruct] = isPointerlocked; + var nodeName = JSEvents.getNodeNameForTarget(pointerLockElement); + var id = pointerLockElement?.id || ''; + stringToUTF8(nodeName, eventStruct + 1, 128); + stringToUTF8(id, eventStruct + 129, 128); + }; + + + var registerPointerlockChangeEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 257; + JSEvents.pointerlockChangeEvent ||= _malloc(eventSize); + + var pointerlockChangeEventHandlerFunc = (e) => { + var pointerlockChangeEvent = JSEvents.pointerlockChangeEvent; + fillPointerlockChangeEventData(pointerlockChangeEvent); + + if (getWasmTableEntry(callbackfunc)(eventTypeId, pointerlockChangeEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target, + eventTypeString, + eventTypeId, + userData, + callbackfunc, + handlerFunc: pointerlockChangeEventHandlerFunc, + useCapture + }; + return JSEvents.registerOrRemoveHandler(eventHandler); + }; + + var _emscripten_set_pointerlockchange_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => { + if (!document.body?.requestPointerLock) { + return -1; + } + + target = findEventTarget(target); + if (!target) return -4; + return registerPointerlockChangeEventCallback(target, userData, useCapture, callbackfunc, 20, "pointerlockchange", targetThread); + }; + + + + + var registerUiEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 36; + JSEvents.uiEvent ||= _malloc(eventSize); + + target = findEventTarget(target); + + var uiEventHandlerFunc = (e) => { + 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, + eventTypeId, + userData, + 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); + + + + + + var registerTouchEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 1552; + JSEvents.touchEvent ||= _malloc(eventSize); + + target = findEventTarget(target); + + var touchEventHandlerFunc = (e) => { + assert(e); + var t, touches = {}, et = e.touches; + // To ease marshalling different kinds of touches that browser reports (all touches are listed in e.touches, + // only changed touches in e.changedTouches, and touches on target at a.targetTouches), mark a boolean in + // each Touch object so that we can later loop only once over all touches we see to marshall over to Wasm. + + for (let t of et) { + // Browser might recycle the generated Touch objects between each frame (Firefox on Android), so reset any + // changed/target states we may have set from previous frame. + t.isChanged = t.onTarget = 0; + touches[t.identifier] = t; + } + // Mark which touches are part of the changedTouches list. + for (let t of e.changedTouches) { + t.isChanged = 1; + touches[t.identifier] = t; + } + // Mark which touches are part of the targetTouches list. + for (let t of e.targetTouches) { + touches[t.identifier].onTarget = 1; + } + + var touchEvent = JSEvents.touchEvent; + HEAPF64[((touchEvent)>>3)] = e.timeStamp; + HEAP8[touchEvent + 12] = e.ctrlKey; + HEAP8[touchEvent + 13] = e.shiftKey; + HEAP8[touchEvent + 14] = e.altKey; + HEAP8[touchEvent + 15] = e.metaKey; + var idx = touchEvent + 16; + var targetRect = getBoundingClientRect(target); + var numTouches = 0; + for (let t of Object.values(touches)) { + var idx32 = ((idx)>>2); // Pre-shift the ptr to index to HEAP32 to save code size + HEAP32[idx32 + 0] = t.identifier; + HEAP32[idx32 + 1] = t.screenX; + HEAP32[idx32 + 2] = t.screenY; + HEAP32[idx32 + 3] = t.clientX; + HEAP32[idx32 + 4] = t.clientY; + HEAP32[idx32 + 5] = t.pageX; + HEAP32[idx32 + 6] = t.pageY; + HEAP8[idx + 28] = t.isChanged; + HEAP8[idx + 29] = t.onTarget; + HEAP32[idx32 + 8] = t.clientX - (targetRect.left | 0); + HEAP32[idx32 + 9] = t.clientY - (targetRect.top | 0); + + idx += 48; + + if (++numTouches > 31) { + break; + } + } + HEAP32[(((touchEvent)+(8))>>2)] = numTouches; + + if (getWasmTableEntry(callbackfunc)(eventTypeId, touchEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target, + allowsDeferredCalls: eventTypeString == 'touchstart' || eventTypeString == 'touchend', + eventTypeString, + eventTypeId, + userData, + callbackfunc, + handlerFunc: touchEventHandlerFunc, + useCapture + }; + return JSEvents.registerOrRemoveHandler(eventHandler); + }; + var _emscripten_set_touchcancel_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerTouchEventCallback(target, userData, useCapture, callbackfunc, 25, "touchcancel", targetThread); + + var _emscripten_set_touchend_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerTouchEventCallback(target, userData, useCapture, callbackfunc, 23, "touchend", targetThread); + + var _emscripten_set_touchmove_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerTouchEventCallback(target, userData, useCapture, callbackfunc, 24, "touchmove", targetThread); + + var _emscripten_set_touchstart_callback_on_thread = (target, userData, useCapture, callbackfunc, targetThread) => + registerTouchEventCallback(target, userData, useCapture, callbackfunc, 22, "touchstart", targetThread); + + + var fillVisibilityChangeEventData = (eventStruct) => { + var visibilityStates = [ "hidden", "visible", "prerender", "unloaded" ]; + var visibilityState = visibilityStates.indexOf(document.visibilityState); + + // Assigning a boolean to HEAP32 with expected type coercion. + /** @suppress{checkTypes} */ + HEAP8[eventStruct] = document.hidden; + HEAP32[(((eventStruct)+(4))>>2)] = visibilityState; + }; + + + var registerVisibilityChangeEventCallback = (target, userData, useCapture, callbackfunc, eventTypeId, eventTypeString, targetThread) => { + var eventSize = 8; + JSEvents.visibilityChangeEvent ||= _malloc(eventSize); + + var visibilityChangeEventHandlerFunc = (e) => { + var visibilityChangeEvent = JSEvents.visibilityChangeEvent; + fillVisibilityChangeEventData(visibilityChangeEvent); + + if (getWasmTableEntry(callbackfunc)(eventTypeId, visibilityChangeEvent, userData)) e.preventDefault(); + }; + + var eventHandler = { + target, + eventTypeString, + eventTypeId, + userData, + callbackfunc, + handlerFunc: visibilityChangeEventHandlerFunc, + useCapture + }; + return JSEvents.registerOrRemoveHandler(eventHandler); + }; + + var _emscripten_set_visibilitychange_callback_on_thread = (userData, useCapture, callbackfunc, targetThread) => { + if (!specialHTMLTargets[1]) { + return -4; + } + return registerVisibilityChangeEventCallback(specialHTMLTargets[1], userData, useCapture, callbackfunc, 21, "visibilitychange", targetThread); + }; + + + + /** @param {number=} timeout */ + var safeSetTimeout = (func, timeout) => { + + return setTimeout(() => { + + callUserCallback(func); + }, timeout); + }; + + + + var Browser = { + useWebGL:false, + isFullscreen:false, + pointerLock:false, + moduleContextCreatedCallbacks:[], + workers:[], + preloadedImages:{ + }, + preloadedAudios:{ + }, + getCanvas:() => Module['canvas'], + init() { + if (Browser.initted) return; + Browser.initted = true; + + // Support for plugins that can process preloaded files. You can add more of these to + // your app by creating and appending to preloadPlugins. + // + // Each plugin is asked if it can handle a file based on the file's name. If it can, + // it is given the file's raw data. When it is done, it calls a callback with the file's + // (possibly modified) data. For example, a plugin might decompress a file, or it + // might create some side data structure for use later (like an Image element, etc.). + + var imagePlugin = {}; + imagePlugin['canHandle'] = (name) => { + return !Module['noImageDecoding'] && /\.(jpg|jpeg|png|bmp|webp)$/i.test(name); + }; + imagePlugin['handle'] = async (byteArray, name) => { + var b = new Blob([byteArray], { type: Browser.getMimetype(name) }); + if (b.size !== byteArray.length) { // Safari bug #118630 + // Safari's Blob can only take an ArrayBuffer + b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) }); + } + var url = URL.createObjectURL(b); + return new Promise((resolve, reject) => { + var img = new Image(); + img.onload = () => { + assert(img.complete, `Image ${name} could not be decoded`); + var canvas = /** @type {!HTMLCanvasElement} */ (document.createElement('canvas')); + canvas.width = img.width; + canvas.height = img.height; + var ctx = canvas.getContext('2d'); + ctx.drawImage(img, 0, 0); + Browser.preloadedImages[name] = canvas; + URL.revokeObjectURL(url); + resolve(byteArray); + }; + img.onerror = (event) => { + err(`Image ${url} could not be decoded`); + reject(); + }; + img.src = url; + }); + }; + preloadPlugins.push(imagePlugin); + + var audioPlugin = {}; + audioPlugin['canHandle'] = (name) => { + return !Module['noAudioDecoding'] && name.slice(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 }; + }; + audioPlugin['handle'] = async (byteArray, name) => { + return new Promise((resolve, reject) => { + var done = false; + function finish(audio) { + if (done) return; + done = true; + Browser.preloadedAudios[name] = audio; + resolve(byteArray); + } + var b = new Blob([byteArray], { type: Browser.getMimetype(name) }); + var url = URL.createObjectURL(b); // XXX we never revoke this! + var audio = new Audio(); + audio.addEventListener('canplaythrough', () => finish(audio), false); // use addEventListener due to chromium bug 124926 + audio.onerror = (event) => { + if (done) return; + err(`warning: browser could not fully decode audio ${name}, trying slower base64 approach`); + function encode64(data) { + var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; + var PAD = '='; + var ret = ''; + var leftchar = 0; + var leftbits = 0; + for (var i = 0; i < data.length; i++) { + leftchar = (leftchar << 8) | data[i]; + leftbits += 8; + while (leftbits >= 6) { + var curr = (leftchar >> (leftbits-6)) & 0x3f; + leftbits -= 6; + ret += BASE[curr]; + } + } + if (leftbits == 2) { + ret += BASE[(leftchar&3) << 4]; + ret += PAD + PAD; + } else if (leftbits == 4) { + ret += BASE[(leftchar&0xf) << 2]; + ret += PAD; + } + return ret; + } + audio.src = 'data:audio/x-' + name.slice(-3) + ';base64,' + encode64(byteArray); + finish(audio); // we don't wait for confirmation this worked - but it's worth trying + }; + audio.src = url; + // workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror + safeSetTimeout(() => { + finish(audio); // try to use it even though it is not necessarily ready to play + }, 10000); + }); + }; + preloadPlugins.push(audioPlugin); + + // Canvas event setup + + function pointerLockChange() { + var canvas = Browser.getCanvas(); + Browser.pointerLock = document.pointerLockElement === canvas; + } + var canvas = Browser.getCanvas(); + if (canvas) { + // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module + // Module['forcedAspectRatio'] = 4 / 3; + + document.addEventListener('pointerlockchange', pointerLockChange, false); + + if (Module['elementPointerLock']) { + canvas.addEventListener("click", (ev) => { + if (!Browser.pointerLock && Browser.getCanvas().requestPointerLock) { + Browser.getCanvas().requestPointerLock(); + ev.preventDefault(); + } + }, false); + } + } + }, + createContext(/** @type {HTMLCanvasElement} */ canvas, useWebGL, setInModule, webGLContextAttributes) { + if (useWebGL && Module['ctx'] && canvas == Browser.getCanvas()) return Module['ctx']; // no need to recreate GL context if it's already been created for this canvas. + + var ctx; + var contextHandle; + if (useWebGL) { + // For GLES2/desktop GL compatibility, adjust a few defaults to be different to WebGL defaults, so that they align better with the desktop defaults. + var contextAttributes = { + antialias: false, + alpha: false, + majorVersion: 1, + }; + + if (webGLContextAttributes) { + for (var attribute in webGLContextAttributes) { + contextAttributes[attribute] = webGLContextAttributes[attribute]; + } + } + + // This check of existence of GL is here to satisfy Closure compiler, which yells if variable GL is referenced below but GL object is not + // actually compiled in because application is not doing any GL operations. TODO: Ideally if GL is not being used, this function + // Browser.createContext() should not even be emitted. + if (typeof GL != 'undefined') { + contextHandle = GL.createContext(canvas, contextAttributes); + if (contextHandle) { + ctx = GL.getContext(contextHandle).GLctx; + } + } + } else { + ctx = canvas.getContext('2d'); + } + + if (!ctx) return null; + + if (setInModule) { + if (!useWebGL) assert(typeof GLctx == 'undefined', 'cannot set in module if GLctx is used, but we are a non-GL context that would replace it'); + Module['ctx'] = ctx; + if (useWebGL) GL.makeContextCurrent(contextHandle); + Browser.useWebGL = useWebGL; + Browser.moduleContextCreatedCallbacks.forEach((callback) => callback()); + Browser.init(); + } + return ctx; + }, + fullscreenHandlersInstalled:false, + lockPointer:undefined, + resizeCanvas:undefined, + requestFullscreen(lockPointer, resizeCanvas) { + Browser.lockPointer = lockPointer; + Browser.resizeCanvas = resizeCanvas; + if (typeof Browser.lockPointer == 'undefined') Browser.lockPointer = true; + if (typeof Browser.resizeCanvas == 'undefined') Browser.resizeCanvas = false; + + var canvas = Browser.getCanvas(); + function fullscreenChange() { + Browser.isFullscreen = false; + var canvasContainer = canvas.parentNode; + if (getFullscreenElement() === canvasContainer) { + canvas.exitFullscreen = Browser.exitFullscreen; + if (Browser.lockPointer) canvas.requestPointerLock(); + Browser.isFullscreen = true; + if (Browser.resizeCanvas) { + Browser.setFullscreenCanvasSize(); + } else { + Browser.updateCanvasDimensions(canvas); + } + } else { + // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen + canvasContainer.parentNode.insertBefore(canvas, canvasContainer); + canvasContainer.parentNode.removeChild(canvasContainer); + + if (Browser.resizeCanvas) { + Browser.setWindowedCanvasSize(); + } else { + Browser.updateCanvasDimensions(canvas); + } + } + Module['onFullScreen']?.(Browser.isFullscreen); + Module['onFullscreen']?.(Browser.isFullscreen); + } + + if (!Browser.fullscreenHandlersInstalled) { + Browser.fullscreenHandlersInstalled = true; + document.addEventListener('fullscreenchange', fullscreenChange, false); + document.addEventListener('mozfullscreenchange', fullscreenChange, false); + document.addEventListener('webkitfullscreenchange', fullscreenChange, false); + document.addEventListener('MSFullscreenChange', fullscreenChange, false); + } + + // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root + var canvasContainer = document.createElement("div"); + canvas.parentNode.insertBefore(canvasContainer, canvas); + canvasContainer.appendChild(canvas); + + // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size) + canvasContainer.requestFullscreen = canvasContainer['requestFullscreen'] || + canvasContainer['mozRequestFullScreen'] || + canvasContainer['msRequestFullscreen'] || + (canvasContainer['webkitRequestFullscreen'] ? () => canvasContainer['webkitRequestFullscreen'](Element['ALLOW_KEYBOARD_INPUT']) : null) || + (canvasContainer['webkitRequestFullScreen'] ? () => canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) : null); + + canvasContainer.requestFullscreen(); + }, + requestFullScreen() { + abort('Module.requestFullScreen has been replaced by Module.requestFullscreen (without a capital S)'); + }, + exitFullscreen() { + // This is workaround for chrome. Trying to exit from fullscreen + // not in fullscreen state will cause "TypeError: Document not active" + // in chrome. See https://github.com/emscripten-core/emscripten/pull/8236 + if (!Browser.isFullscreen) { + return false; + } + + var CFS = document['exitFullscreen'] || + document['cancelFullScreen'] || + document['mozCancelFullScreen'] || + document['msExitFullscreen'] || + document['webkitCancelFullScreen'] || + (() => {}); + CFS.apply(document, []); + return true; + }, + safeSetTimeout(func, timeout) { + // Legacy function, this is used by the SDL2 port so we need to keep it + // around at least until that is updated. + // See https://github.com/libsdl-org/SDL/pull/6304 + return safeSetTimeout(func, timeout); + }, + getMimetype(name) { + return { + 'jpg': 'image/jpeg', + 'jpeg': 'image/jpeg', + 'png': 'image/png', + 'bmp': 'image/bmp', + 'ogg': 'audio/ogg', + 'wav': 'audio/wav', + 'mp3': 'audio/mpeg' + }[name.slice(name.lastIndexOf('.')+1)]; + }, + getUserMedia(func) { + window.getUserMedia ||= navigator['getUserMedia'] || + navigator['mozGetUserMedia']; + window.getUserMedia(func); + }, + getMovementX(event) { + return event['movementX'] || + event['mozMovementX'] || + event['webkitMovementX'] || + 0; + }, + getMovementY(event) { + return event['movementY'] || + event['mozMovementY'] || + event['webkitMovementY'] || + 0; + }, + getMouseWheelDelta(event) { + var delta = 0; + switch (event.type) { + case 'DOMMouseScroll': + // 3 lines make up a step + delta = event.detail / 3; + break; + case 'mousewheel': + // 120 units make up a step + delta = event.wheelDelta / 120; + break; + case 'wheel': + delta = event.deltaY + switch (event.deltaMode) { + case 0: + // DOM_DELTA_PIXEL: 100 pixels make up a step + delta /= 100; + break; + case 1: + // DOM_DELTA_LINE: 3 lines make up a step + delta /= 3; + break; + case 2: + // DOM_DELTA_PAGE: A page makes up 80 steps + delta *= 80; + break; + default: + abort('unrecognized mouse wheel delta mode: ' + event.deltaMode); + } + break; + default: + abort('unrecognized mouse wheel event: ' + event.type); + } + return delta; + }, + mouseX:0, + mouseY:0, + mouseMovementX:0, + mouseMovementY:0, + touches:{ + }, + lastTouches:{ + }, + calculateMouseCoords(pageX, pageY) { + // Calculate the movement based on the changes + // in the coordinates. + var canvas = Browser.getCanvas(); + var rect = canvas.getBoundingClientRect(); + + // Neither .scrollX or .pageXOffset are defined in a spec, but + // we prefer .scrollX because it is currently in a spec draft. + // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/) + var scrollX = ((typeof window.scrollX != 'undefined') ? window.scrollX : window.pageXOffset); + var scrollY = ((typeof window.scrollY != 'undefined') ? window.scrollY : window.pageYOffset); + // If this assert lands, it's likely because the browser doesn't support scrollX or pageXOffset + // and we have no viable fallback. + assert((typeof scrollX != 'undefined') && (typeof scrollY != 'undefined'), 'Unable to retrieve scroll position, mouse positions likely broken.'); + var adjustedX = pageX - (scrollX + rect.left); + var adjustedY = pageY - (scrollY + rect.top); + + // the canvas might be CSS-scaled compared to its backbuffer; + // SDL-using content will want mouse coordinates in terms + // of backbuffer units. + adjustedX = adjustedX * (canvas.width / rect.width); + adjustedY = adjustedY * (canvas.height / rect.height); + + return { x: adjustedX, y: adjustedY }; + }, + setMouseCoords(pageX, pageY) { + const {x, y} = Browser.calculateMouseCoords(pageX, pageY); + Browser.mouseMovementX = x - Browser.mouseX; + Browser.mouseMovementY = y - Browser.mouseY; + Browser.mouseX = x; + Browser.mouseY = y; + }, + calculateMouseEvent(event) { // event should be mousemove, mousedown or mouseup + if (Browser.pointerLock) { + // When the pointer is locked, calculate the coordinates + // based on the movement of the mouse. + // Workaround for Firefox bug 764498 + if (event.type != 'mousemove' && + ('mozMovementX' in event)) { + Browser.mouseMovementX = Browser.mouseMovementY = 0; + } else { + Browser.mouseMovementX = Browser.getMovementX(event); + Browser.mouseMovementY = Browser.getMovementY(event); + } + + // add the mouse delta to the current absolute mouse position + Browser.mouseX += Browser.mouseMovementX; + Browser.mouseY += Browser.mouseMovementY; + } else { + if (event.type === 'touchstart' || event.type === 'touchend' || event.type === 'touchmove') { + var touch = event.touch; + if (touch === undefined) { + return; // the "touch" property is only defined in SDL + + } + var coords = Browser.calculateMouseCoords(touch.pageX, touch.pageY); + + if (event.type === 'touchstart') { + Browser.lastTouches[touch.identifier] = coords; + Browser.touches[touch.identifier] = coords; + } else if (event.type === 'touchend' || event.type === 'touchmove') { + var last = Browser.touches[touch.identifier]; + last ||= coords; + Browser.lastTouches[touch.identifier] = last; + Browser.touches[touch.identifier] = coords; + } + return; + } + + Browser.setMouseCoords(event.pageX, event.pageY); + } + }, + resizeListeners:[], + updateResizeListeners() { + var canvas = Browser.getCanvas(); + Browser.resizeListeners.forEach((listener) => listener(canvas.width, canvas.height)); + }, + setCanvasSize(width, height, noUpdates) { + var canvas = Browser.getCanvas(); + Browser.updateCanvasDimensions(canvas, width, height); + if (!noUpdates) Browser.updateResizeListeners(); + }, + windowedWidth:0, + windowedHeight:0, + setFullscreenCanvasSize() { + // check if SDL is available + if (typeof SDL != "undefined") { + var flags = HEAPU32[((SDL.screen)>>2)]; + flags = flags | 0x00800000; // set SDL_FULLSCREEN flag + HEAP32[((SDL.screen)>>2)] = flags; + } + Browser.updateCanvasDimensions(Browser.getCanvas()); + Browser.updateResizeListeners(); + }, + setWindowedCanvasSize() { + // check if SDL is available + if (typeof SDL != "undefined") { + var flags = HEAPU32[((SDL.screen)>>2)]; + flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag + HEAP32[((SDL.screen)>>2)] = flags; + } + Browser.updateCanvasDimensions(Browser.getCanvas()); + Browser.updateResizeListeners(); + }, + updateCanvasDimensions(canvas, wNative, hNative) { + if (wNative && hNative) { + canvas.widthNative = wNative; + canvas.heightNative = hNative; + } else { + wNative = canvas.widthNative; + hNative = canvas.heightNative; + } + var w = wNative; + var h = hNative; + if (Module['forcedAspectRatio'] > 0) { + if (w/h < Module['forcedAspectRatio']) { + w = Math.round(h * Module['forcedAspectRatio']); + } else { + h = Math.round(w / Module['forcedAspectRatio']); + } + } + if ((getFullscreenElement() === canvas.parentNode) && (typeof screen != 'undefined')) { + var factor = Math.min(screen.width / w, screen.height / h); + w = Math.round(w * factor); + h = Math.round(h * factor); + } + if (Browser.resizeCanvas) { + if (canvas.width != w) canvas.width = w; + if (canvas.height != h) canvas.height = h; + if (typeof canvas.style != 'undefined') { + canvas.style.removeProperty( "width"); + canvas.style.removeProperty("height"); + } + } else { + if (canvas.width != wNative) canvas.width = wNative; + if (canvas.height != hNative) canvas.height = hNative; + if (typeof canvas.style != 'undefined') { + if (w != wNative || h != hNative) { + canvas.style.setProperty( "width", w + "px", "important"); + canvas.style.setProperty("height", h + "px", "important"); + } else { + canvas.style.removeProperty( "width"); + canvas.style.removeProperty("height"); + } + } + } + }, + }; + + var _emscripten_set_window_title = (title) => document.title = UTF8ToString(title); + + + function _fd_close(fd) { + try { + + var stream = SYSCALLS.getStreamFromFD(fd); + FS.close(stream); + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return e.errno; + } + } + + /** @param {number=} offset */ + var doReadv = (stream, iov, iovcnt, offset) => { + var ret = 0; + for (var i = 0; i < iovcnt; i++) { + var ptr = HEAPU32[((iov)>>2)]; + var len = HEAPU32[(((iov)+(4))>>2)]; + iov += 8; + var curr = FS.read(stream, HEAP8, ptr, len, offset); + if (curr < 0) return -1; + ret += curr; + if (curr < len) break; // nothing more to read + if (typeof offset != 'undefined') { + offset += curr; + } + } + return ret; + }; + + function _fd_read(fd, iov, iovcnt, pnum) { + try { + + var stream = SYSCALLS.getStreamFromFD(fd); + var num = doReadv(stream, iov, iovcnt); + HEAPU32[((pnum)>>2)] = num; + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return e.errno; + } + } + + + function _fd_seek(fd, offset, whence, newOffset) { + offset = bigintToI53Checked(offset); + + + try { + + if (isNaN(offset)) return 61; + var stream = SYSCALLS.getStreamFromFD(fd); + FS.llseek(stream, offset, whence); + HEAP64[((newOffset)>>3)] = BigInt(stream.position); + if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return e.errno; + } + ; + } + + /** @param {number=} offset */ + var doWritev = (stream, iov, iovcnt, offset) => { + var ret = 0; + for (var i = 0; i < iovcnt; i++) { + var ptr = HEAPU32[((iov)>>2)]; + var len = HEAPU32[(((iov)+(4))>>2)]; + iov += 8; + var curr = FS.write(stream, HEAP8, ptr, len, offset); + if (curr < 0) return -1; + ret += curr; + if (curr < len) { + // No more space to write. + break; + } + if (typeof offset != 'undefined') { + offset += curr; + } + } + return ret; + }; + + function _fd_write(fd, iov, iovcnt, pnum) { + try { + + var stream = SYSCALLS.getStreamFromFD(fd); + var num = doWritev(stream, iov, iovcnt); + HEAPU32[((pnum)>>2)] = num; + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; + return e.errno; + } + } + + var _glActiveTexture = _emscripten_glActiveTexture; + + var _glAttachShader = _emscripten_glAttachShader; + + var _glBindAttribLocation = _emscripten_glBindAttribLocation; + + var _glBindBuffer = _emscripten_glBindBuffer; + + var _glBindTexture = _emscripten_glBindTexture; + + var _glBlendFunc = _emscripten_glBlendFunc; + + var _glBufferData = _emscripten_glBufferData; + + var _glBufferSubData = _emscripten_glBufferSubData; + + var _glClear = _emscripten_glClear; + + var _glClearColor = _emscripten_glClearColor; + + var _glClearDepthf = _emscripten_glClearDepthf; + + var _glCompileShader = _emscripten_glCompileShader; + + var _glCompressedTexImage2D = _emscripten_glCompressedTexImage2D; + + var _glCreateProgram = _emscripten_glCreateProgram; + + var _glCreateShader = _emscripten_glCreateShader; + + var _glCullFace = _emscripten_glCullFace; + + var _glDeleteProgram = _emscripten_glDeleteProgram; + + var _glDeleteShader = _emscripten_glDeleteShader; + + var _glDepthFunc = _emscripten_glDepthFunc; + + var _glDisable = _emscripten_glDisable; + + var _glDrawArrays = _emscripten_glDrawArrays; + + var _glDrawElements = _emscripten_glDrawElements; + + var _glEnable = _emscripten_glEnable; + + var _glEnableVertexAttribArray = _emscripten_glEnableVertexAttribArray; + + var _glFrontFace = _emscripten_glFrontFace; + + var _glGenBuffers = _emscripten_glGenBuffers; + + var _glGenTextures = _emscripten_glGenTextures; + + var _glGetAttribLocation = _emscripten_glGetAttribLocation; + + var _glGetFloatv = _emscripten_glGetFloatv; + + var _glGetProgramInfoLog = _emscripten_glGetProgramInfoLog; + + var _glGetProgramiv = _emscripten_glGetProgramiv; + + var _glGetShaderInfoLog = _emscripten_glGetShaderInfoLog; + + var _glGetShaderiv = _emscripten_glGetShaderiv; + + var _glGetString = _emscripten_glGetString; + + var _glGetUniformLocation = _emscripten_glGetUniformLocation; + + var _glLinkProgram = _emscripten_glLinkProgram; + + var _glPixelStorei = _emscripten_glPixelStorei; + + var _glReadPixels = _emscripten_glReadPixels; + + var _glShaderSource = _emscripten_glShaderSource; + + var _glTexImage2D = _emscripten_glTexImage2D; + + var _glTexParameteri = _emscripten_glTexParameteri; + + var _glUniform1i = _emscripten_glUniform1i; + + var _glUniform4f = _emscripten_glUniform4f; + + var _glUniformMatrix4fv = _emscripten_glUniformMatrix4fv; + + var _glUseProgram = _emscripten_glUseProgram; + + var _glVertexAttribPointer = _emscripten_glVertexAttribPointer; + + var _glViewport = _emscripten_glViewport; + + + + + /** @constructor */ + function GLFW_Window(id, width, height, framebufferWidth, framebufferHeight, title, monitor, share) { + this.id = id; + this.x = 0; + this.y = 0; + this.fullscreen = false; // Used to determine if app is in fullscreen mode + this.storedX = 0; // Used to store X before fullscreen + this.storedY = 0; // Used to store Y before fullscreen + this.width = width; + this.height = height; + this.framebufferWidth = framebufferWidth; + this.framebufferHeight = framebufferHeight; + this.storedWidth = width; // Used to store width before fullscreen + this.storedHeight = height; // Used to store height before fullscreen + this.title = title; + this.monitor = monitor; + this.share = share; + this.attributes = {...GLFW.hints}; + this.inputModes = { + 0x00033001:0x00034001, // GLFW_CURSOR (GLFW_CURSOR_NORMAL) + 0x00033002:0, // GLFW_STICKY_KEYS + 0x00033003:0, // GLFW_STICKY_MOUSE_BUTTONS + }; + this.buttons = 0; + this.keys = new Array(); + this.domKeys = new Array(); + this.shouldClose = 0; + this.title = null; + this.windowPosFunc = 0; // GLFWwindowposfun + this.windowSizeFunc = 0; // GLFWwindowsizefun + this.windowCloseFunc = 0; // GLFWwindowclosefun + this.windowRefreshFunc = 0; // GLFWwindowrefreshfun + this.windowFocusFunc = 0; // GLFWwindowfocusfun + this.windowIconifyFunc = 0; // GLFWwindowiconifyfun + this.windowMaximizeFunc = 0; // GLFWwindowmaximizefun + this.framebufferSizeFunc = 0; // GLFWframebuffersizefun + this.windowContentScaleFunc = 0; // GLFWwindowcontentscalefun + this.mouseButtonFunc = 0; // GLFWmousebuttonfun + this.cursorPosFunc = 0; // GLFWcursorposfun + this.cursorEnterFunc = 0; // GLFWcursorenterfun + this.scrollFunc = 0; // GLFWscrollfun + this.dropFunc = 0; // GLFWdropfun + this.keyFunc = 0; // GLFWkeyfun + this.charFunc = 0; // GLFWcharfun + this.userptr = 0; + } + + + + + + + + + + var GLFW = { + WindowFromId:(id) => { + if (id <= 0 || !GLFW.windows) return null; + return GLFW.windows[id - 1]; + }, + joystickFunc:0, + errorFunc:0, + monitorFunc:0, + active:null, + scale:null, + windows:null, + monitors:null, + monitorString:null, + versionString:null, + initialTime:null, + extensions:null, + devicePixelRatioMQL:null, + hints:null, + primaryTouchId:null, + defaultHints:{ + 131073:0, + 131074:0, + 131075:1, + 131076:1, + 131077:1, + 131082:0, + 135169:8, + 135170:8, + 135171:8, + 135172:8, + 135173:24, + 135174:8, + 135175:0, + 135176:0, + 135177:0, + 135178:0, + 135179:0, + 135180:0, + 135181:0, + 135182:0, + 135183:0, + 139265:196609, + 139266:1, + 139267:0, + 139268:0, + 139269:0, + 139270:0, + 139271:0, + 139272:0, + 139276:0, + }, + DOMToGLFWKeyCode:(keycode) => { + switch (keycode) { + // these keycodes are only defined for GLFW3, assume they are the same for GLFW2 + case 0x20:return 32; // DOM_VK_SPACE -> GLFW_KEY_SPACE + case 0xDE:return 39; // DOM_VK_QUOTE -> GLFW_KEY_APOSTROPHE + case 0xBC:return 44; // DOM_VK_COMMA -> GLFW_KEY_COMMA + case 0xAD:return 45; // DOM_VK_HYPHEN_MINUS -> GLFW_KEY_MINUS + case 0xBD:return 45; // DOM_VK_MINUS -> GLFW_KEY_MINUS + case 0xBE:return 46; // DOM_VK_PERIOD -> GLFW_KEY_PERIOD + case 0xBF:return 47; // DOM_VK_SLASH -> GLFW_KEY_SLASH + case 0x30:return 48; // DOM_VK_0 -> GLFW_KEY_0 + case 0x31:return 49; // DOM_VK_1 -> GLFW_KEY_1 + case 0x32:return 50; // DOM_VK_2 -> GLFW_KEY_2 + case 0x33:return 51; // DOM_VK_3 -> GLFW_KEY_3 + case 0x34:return 52; // DOM_VK_4 -> GLFW_KEY_4 + case 0x35:return 53; // DOM_VK_5 -> GLFW_KEY_5 + case 0x36:return 54; // DOM_VK_6 -> GLFW_KEY_6 + case 0x37:return 55; // DOM_VK_7 -> GLFW_KEY_7 + case 0x38:return 56; // DOM_VK_8 -> GLFW_KEY_8 + case 0x39:return 57; // DOM_VK_9 -> GLFW_KEY_9 + case 0x3B:return 59; // DOM_VK_SEMICOLON -> GLFW_KEY_SEMICOLON + case 0x3D:return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL + case 0xBB:return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL + case 0x41:return 65; // DOM_VK_A -> GLFW_KEY_A + case 0x42:return 66; // DOM_VK_B -> GLFW_KEY_B + case 0x43:return 67; // DOM_VK_C -> GLFW_KEY_C + case 0x44:return 68; // DOM_VK_D -> GLFW_KEY_D + case 0x45:return 69; // DOM_VK_E -> GLFW_KEY_E + case 0x46:return 70; // DOM_VK_F -> GLFW_KEY_F + case 0x47:return 71; // DOM_VK_G -> GLFW_KEY_G + case 0x48:return 72; // DOM_VK_H -> GLFW_KEY_H + case 0x49:return 73; // DOM_VK_I -> GLFW_KEY_I + case 0x4A:return 74; // DOM_VK_J -> GLFW_KEY_J + case 0x4B:return 75; // DOM_VK_K -> GLFW_KEY_K + case 0x4C:return 76; // DOM_VK_L -> GLFW_KEY_L + case 0x4D:return 77; // DOM_VK_M -> GLFW_KEY_M + case 0x4E:return 78; // DOM_VK_N -> GLFW_KEY_N + case 0x4F:return 79; // DOM_VK_O -> GLFW_KEY_O + case 0x50:return 80; // DOM_VK_P -> GLFW_KEY_P + case 0x51:return 81; // DOM_VK_Q -> GLFW_KEY_Q + case 0x52:return 82; // DOM_VK_R -> GLFW_KEY_R + case 0x53:return 83; // DOM_VK_S -> GLFW_KEY_S + case 0x54:return 84; // DOM_VK_T -> GLFW_KEY_T + case 0x55:return 85; // DOM_VK_U -> GLFW_KEY_U + case 0x56:return 86; // DOM_VK_V -> GLFW_KEY_V + case 0x57:return 87; // DOM_VK_W -> GLFW_KEY_W + case 0x58:return 88; // DOM_VK_X -> GLFW_KEY_X + case 0x59:return 89; // DOM_VK_Y -> GLFW_KEY_Y + case 0x5a:return 90; // DOM_VK_Z -> GLFW_KEY_Z + case 0xDB:return 91; // DOM_VK_OPEN_BRACKET -> GLFW_KEY_LEFT_BRACKET + case 0xDC:return 92; // DOM_VK_BACKSLASH -> GLFW_KEY_BACKSLASH + case 0xDD:return 93; // DOM_VK_CLOSE_BRACKET -> GLFW_KEY_RIGHT_BRACKET + case 0xC0:return 96; // DOM_VK_BACK_QUOTE -> GLFW_KEY_GRAVE_ACCENT + + case 0x1B:return 256; // DOM_VK_ESCAPE -> GLFW_KEY_ESCAPE + case 0x0D:return 257; // DOM_VK_RETURN -> GLFW_KEY_ENTER + case 0x09:return 258; // DOM_VK_TAB -> GLFW_KEY_TAB + case 0x08:return 259; // DOM_VK_BACK -> GLFW_KEY_BACKSPACE + case 0x2D:return 260; // DOM_VK_INSERT -> GLFW_KEY_INSERT + case 0x2E:return 261; // DOM_VK_DELETE -> GLFW_KEY_DELETE + case 0x27:return 262; // DOM_VK_RIGHT -> GLFW_KEY_RIGHT + case 0x25:return 263; // DOM_VK_LEFT -> GLFW_KEY_LEFT + case 0x28:return 264; // DOM_VK_DOWN -> GLFW_KEY_DOWN + case 0x26:return 265; // DOM_VK_UP -> GLFW_KEY_UP + case 0x21:return 266; // DOM_VK_PAGE_UP -> GLFW_KEY_PAGE_UP + case 0x22:return 267; // DOM_VK_PAGE_DOWN -> GLFW_KEY_PAGE_DOWN + case 0x24:return 268; // DOM_VK_HOME -> GLFW_KEY_HOME + case 0x23:return 269; // DOM_VK_END -> GLFW_KEY_END + case 0x14:return 280; // DOM_VK_CAPS_LOCK -> GLFW_KEY_CAPS_LOCK + case 0x91:return 281; // DOM_VK_SCROLL_LOCK -> GLFW_KEY_SCROLL_LOCK + case 0x90:return 282; // DOM_VK_NUM_LOCK -> GLFW_KEY_NUM_LOCK + case 0x2C:return 283; // DOM_VK_SNAPSHOT -> GLFW_KEY_PRINT_SCREEN + case 0x13:return 284; // DOM_VK_PAUSE -> GLFW_KEY_PAUSE + case 0x70:return 290; // DOM_VK_F1 -> GLFW_KEY_F1 + case 0x71:return 291; // DOM_VK_F2 -> GLFW_KEY_F2 + case 0x72:return 292; // DOM_VK_F3 -> GLFW_KEY_F3 + case 0x73:return 293; // DOM_VK_F4 -> GLFW_KEY_F4 + case 0x74:return 294; // DOM_VK_F5 -> GLFW_KEY_F5 + case 0x75:return 295; // DOM_VK_F6 -> GLFW_KEY_F6 + case 0x76:return 296; // DOM_VK_F7 -> GLFW_KEY_F7 + case 0x77:return 297; // DOM_VK_F8 -> GLFW_KEY_F8 + case 0x78:return 298; // DOM_VK_F9 -> GLFW_KEY_F9 + case 0x79:return 299; // DOM_VK_F10 -> GLFW_KEY_F10 + case 0x7A:return 300; // DOM_VK_F11 -> GLFW_KEY_F11 + case 0x7B:return 301; // DOM_VK_F12 -> GLFW_KEY_F12 + case 0x7C:return 302; // DOM_VK_F13 -> GLFW_KEY_F13 + case 0x7D:return 303; // DOM_VK_F14 -> GLFW_KEY_F14 + case 0x7E:return 304; // DOM_VK_F15 -> GLFW_KEY_F15 + case 0x7F:return 305; // DOM_VK_F16 -> GLFW_KEY_F16 + case 0x80:return 306; // DOM_VK_F17 -> GLFW_KEY_F17 + case 0x81:return 307; // DOM_VK_F18 -> GLFW_KEY_F18 + case 0x82:return 308; // DOM_VK_F19 -> GLFW_KEY_F19 + case 0x83:return 309; // DOM_VK_F20 -> GLFW_KEY_F20 + case 0x84:return 310; // DOM_VK_F21 -> GLFW_KEY_F21 + case 0x85:return 311; // DOM_VK_F22 -> GLFW_KEY_F22 + case 0x86:return 312; // DOM_VK_F23 -> GLFW_KEY_F23 + case 0x87:return 313; // DOM_VK_F24 -> GLFW_KEY_F24 + case 0x88:return 314; // 0x88 (not used?) -> GLFW_KEY_F25 + case 0x60:return 320; // DOM_VK_NUMPAD0 -> GLFW_KEY_KP_0 + case 0x61:return 321; // DOM_VK_NUMPAD1 -> GLFW_KEY_KP_1 + case 0x62:return 322; // DOM_VK_NUMPAD2 -> GLFW_KEY_KP_2 + case 0x63:return 323; // DOM_VK_NUMPAD3 -> GLFW_KEY_KP_3 + case 0x64:return 324; // DOM_VK_NUMPAD4 -> GLFW_KEY_KP_4 + case 0x65:return 325; // DOM_VK_NUMPAD5 -> GLFW_KEY_KP_5 + case 0x66:return 326; // DOM_VK_NUMPAD6 -> GLFW_KEY_KP_6 + case 0x67:return 327; // DOM_VK_NUMPAD7 -> GLFW_KEY_KP_7 + case 0x68:return 328; // DOM_VK_NUMPAD8 -> GLFW_KEY_KP_8 + case 0x69:return 329; // DOM_VK_NUMPAD9 -> GLFW_KEY_KP_9 + case 0x6E:return 330; // DOM_VK_DECIMAL -> GLFW_KEY_KP_DECIMAL + case 0x6F:return 331; // DOM_VK_DIVIDE -> GLFW_KEY_KP_DIVIDE + case 0x6A:return 332; // DOM_VK_MULTIPLY -> GLFW_KEY_KP_MULTIPLY + case 0x6D:return 333; // DOM_VK_SUBTRACT -> GLFW_KEY_KP_SUBTRACT + case 0x6B:return 334; // DOM_VK_ADD -> GLFW_KEY_KP_ADD + // case 0x0D:return 335; // DOM_VK_RETURN -> GLFW_KEY_KP_ENTER (DOM_KEY_LOCATION_RIGHT) + // case 0x61:return 336; // DOM_VK_EQUALS -> GLFW_KEY_KP_EQUAL (DOM_KEY_LOCATION_RIGHT) + case 0x10:return 340; // DOM_VK_SHIFT -> GLFW_KEY_LEFT_SHIFT + case 0x11:return 341; // DOM_VK_CONTROL -> GLFW_KEY_LEFT_CONTROL + case 0x12:return 342; // DOM_VK_ALT -> GLFW_KEY_LEFT_ALT + case 0x5B:return 343; // DOM_VK_WIN -> GLFW_KEY_LEFT_SUPER + case 0xE0:return 343; // DOM_VK_META -> GLFW_KEY_LEFT_SUPER + // case 0x10:return 344; // DOM_VK_SHIFT -> GLFW_KEY_RIGHT_SHIFT (DOM_KEY_LOCATION_RIGHT) + // case 0x11:return 345; // DOM_VK_CONTROL -> GLFW_KEY_RIGHT_CONTROL (DOM_KEY_LOCATION_RIGHT) + // case 0x12:return 346; // DOM_VK_ALT -> GLFW_KEY_RIGHT_ALT (DOM_KEY_LOCATION_RIGHT) + // case 0x5B:return 347; // DOM_VK_WIN -> GLFW_KEY_RIGHT_SUPER (DOM_KEY_LOCATION_RIGHT) + case 0x5D:return 348; // DOM_VK_CONTEXT_MENU -> GLFW_KEY_MENU + // XXX: GLFW_KEY_WORLD_1, GLFW_KEY_WORLD_2 what are these? + default:return -1; // GLFW_KEY_UNKNOWN + }; + }, + getModBits:(win) => { + var mod = 0; + if (win.keys[340]) mod |= 0x0001; // GLFW_MOD_SHIFT + if (win.keys[341]) mod |= 0x0002; // GLFW_MOD_CONTROL + if (win.keys[342]) mod |= 0x0004; // GLFW_MOD_ALT + if (win.keys[343] || win.keys[348]) mod |= 0x0008; // GLFW_MOD_SUPER + // add caps and num lock keys? only if lock_key_mod is set + return mod; + }, + onKeyPress:(event) => { + if (!GLFW.active || !GLFW.active.charFunc) return; + if (event.ctrlKey || event.metaKey) return; + + // correct unicode charCode is only available with onKeyPress event + var charCode = event.charCode; + if (charCode == 0 || (charCode >= 0x00 && charCode <= 0x1F)) return; + + getWasmTableEntry(GLFW.active.charFunc)(GLFW.active.id, charCode); + }, + onKeyChanged:(keyCode, status) => { + if (!GLFW.active) return; + + var key = GLFW.DOMToGLFWKeyCode(keyCode); + if (key == -1) return; + + var repeat = status && GLFW.active.keys[key]; + GLFW.active.keys[key] = status; + GLFW.active.domKeys[keyCode] = status; + + if (GLFW.active.keyFunc) { + if (repeat) status = 2; // GLFW_REPEAT + getWasmTableEntry(GLFW.active.keyFunc)(GLFW.active.id, key, keyCode, status, GLFW.getModBits(GLFW.active)); + } + }, + onGamepadConnected:(event) => { + GLFW.refreshJoysticks(); + }, + onGamepadDisconnected:(event) => { + GLFW.refreshJoysticks(); + }, + onKeydown:(event) => { + GLFW.onKeyChanged(event.keyCode, 1); // GLFW_PRESS or GLFW_REPEAT + + // This logic comes directly from the sdl implementation. We cannot + // call preventDefault on all keydown events otherwise onKeyPress will + // not get called + if (event.key == 'Backspace' || event.key == 'Tab') { + event.preventDefault(); + } + }, + onKeyup:(event) => { + GLFW.onKeyChanged(event.keyCode, 0); // GLFW_RELEASE + }, + onBlur:(event) => { + if (!GLFW.active) return; + + for (var i = 0; i < GLFW.active.domKeys.length; ++i) { + if (GLFW.active.domKeys[i]) { + GLFW.onKeyChanged(i, 0); // GLFW_RELEASE + } + } + }, + onMousemove:(event) => { + if (!GLFW.active) return; + + if (event.type === 'touchmove') { + // Handling for touch events that are being converted to mouse input. + + // Don't let the browser fire a duplicate mouse event. + event.preventDefault(); + + let primaryChanged = false; + for (let i of event.changedTouches) { + // If our chosen primary touch moved, update Browser mouse coords + if (GLFW.primaryTouchId === i.identifier) { + Browser.setMouseCoords(i.pageX, i.pageY); + primaryChanged = true; + break; + } + } + + if (!primaryChanged) { + // Do not send mouse events if some touch other than the primary triggered this. + return; + } + + } else { + // Handling for non-touch mouse input events. + Browser.calculateMouseEvent(event); + } + + if (event.target != Browser.getCanvas() || !GLFW.active.cursorPosFunc) return; + + if (GLFW.active.cursorPosFunc) { + getWasmTableEntry(GLFW.active.cursorPosFunc)(GLFW.active.id, Browser.mouseX, Browser.mouseY); + } + }, + DOMToGLFWMouseButton:(event) => { + // DOM and glfw have different button codes. + // See http://www.w3schools.com/jsref/event_button.asp. + var eventButton = event['button']; + if (eventButton > 0) { + if (eventButton == 1) { + eventButton = 2; + } else { + eventButton = 1; + } + } + return eventButton; + }, + onMouseenter:(event) => { + if (!GLFW.active) return; + + if (event.target != Browser.getCanvas()) return; + + if (GLFW.active.cursorEnterFunc) { + getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 1); + } + }, + onMouseleave:(event) => { + if (!GLFW.active) return; + + if (event.target != Browser.getCanvas()) return; + + if (GLFW.active.cursorEnterFunc) { + getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 0); + } + }, + onMouseButtonChanged:(event, status) => { + if (!GLFW.active) return; + + if (event.target != Browser.getCanvas()) return; + + // Is this from a touch event? + const isTouchType = event.type === 'touchstart' || event.type === 'touchend' || event.type === 'touchcancel'; + + // Only emulating mouse left-click behavior for touches. + let eventButton = 0; + if (isTouchType) { + // Handling for touch events that are being converted to mouse input. + + // Don't let the browser fire a duplicate mouse event. + event.preventDefault(); + + let primaryChanged = false; + + // Set a primary touch if we have none. + if (GLFW.primaryTouchId === null && event.type === 'touchstart' && event.targetTouches.length > 0) { + // Pick the first touch that started in the canvas and treat it as primary. + const chosenTouch = event.targetTouches[0]; + GLFW.primaryTouchId = chosenTouch.identifier; + + Browser.setMouseCoords(chosenTouch.pageX, chosenTouch.pageY); + primaryChanged = true; + } else if (event.type === 'touchend' || event.type === 'touchcancel') { + // Clear the primary touch if it ended. + for (let i of event.changedTouches) { + // If our chosen primary touch ended, remove it. + if (GLFW.primaryTouchId === i.identifier) { + GLFW.primaryTouchId = null; + primaryChanged = true; + break; + } + } + } + + if (!primaryChanged) { + // Do not send mouse events if some touch other than the primary triggered this. + return; + } + + } else { + // Handling for non-touch mouse input events. + Browser.calculateMouseEvent(event); + eventButton = GLFW.DOMToGLFWMouseButton(event); + } + + if (status == 1) { // GLFW_PRESS + GLFW.active.buttons |= (1 << eventButton); + try { + event.target.setCapture(); + } catch (e) {} + } else { // GLFW_RELEASE + GLFW.active.buttons &= ~(1 << eventButton); + } + + // Send mouse event to GLFW. + if (GLFW.active.mouseButtonFunc) { + getWasmTableEntry(GLFW.active.mouseButtonFunc)(GLFW.active.id, eventButton, status, GLFW.getModBits(GLFW.active)); + } + }, + onMouseButtonDown:(event) => { + if (!GLFW.active) return; + GLFW.onMouseButtonChanged(event, 1); // GLFW_PRESS + }, + onMouseButtonUp:(event) => { + if (!GLFW.active) return; + GLFW.onMouseButtonChanged(event, 0); // GLFW_RELEASE + }, + onMouseWheel:(event) => { + // Note the minus sign that flips browser wheel direction (positive direction scrolls page down) to native wheel direction (positive direction is mouse wheel up) + var delta = -Browser.getMouseWheelDelta(event); + delta = (delta == 0) ? 0 : (delta > 0 ? Math.max(delta, 1) : Math.min(delta, -1)); // Quantize to integer so that minimum scroll is at least +/- 1. + GLFW.wheelPos += delta; + + if (!GLFW.active || !GLFW.active.scrollFunc || event.target != Browser.getCanvas()) return; + var sx = 0; + var sy = delta; + if (event.type == 'mousewheel') { + sx = event.wheelDeltaX; + } else { + sx = event.deltaX; + } + + getWasmTableEntry(GLFW.active.scrollFunc)(GLFW.active.id, sx, sy); + + event.preventDefault(); + }, + onCanvasResize:(width, height, framebufferWidth, framebufferHeight) => { + if (!GLFW.active) return; + + var resizeNeeded = false; + + // If the client is requesting fullscreen mode + if (getFullscreenElement()) { + if (!GLFW.active.fullscreen) { + resizeNeeded = width != screen.width || height != screen.height; + GLFW.active.storedX = GLFW.active.x; + GLFW.active.storedY = GLFW.active.y; + GLFW.active.storedWidth = GLFW.active.width; + GLFW.active.storedHeight = GLFW.active.height; + GLFW.active.x = GLFW.active.y = 0; + GLFW.active.width = screen.width; + GLFW.active.height = screen.height; + GLFW.active.fullscreen = true; + } + // If the client is reverting from fullscreen mode + } else if (GLFW.active.fullscreen == true) { + resizeNeeded = width != GLFW.active.storedWidth || height != GLFW.active.storedHeight; + GLFW.active.x = GLFW.active.storedX; + GLFW.active.y = GLFW.active.storedY; + GLFW.active.width = GLFW.active.storedWidth; + GLFW.active.height = GLFW.active.storedHeight; + GLFW.active.fullscreen = false; + } + + if (resizeNeeded) { + // width or height is changed (fullscreen / exit fullscreen) which will call this listener back + // with proper framebufferWidth/framebufferHeight + Browser.setCanvasSize(GLFW.active.width, GLFW.active.height); + } else if (GLFW.active.width != width || + GLFW.active.height != height || + GLFW.active.framebufferWidth != framebufferWidth || + GLFW.active.framebufferHeight != framebufferHeight) { + GLFW.active.width = width; + GLFW.active.height = height; + GLFW.active.framebufferWidth = framebufferWidth; + GLFW.active.framebufferHeight = framebufferHeight; + GLFW.onWindowSizeChanged(); + GLFW.onFramebufferSizeChanged(); + } + }, + onWindowSizeChanged:() => { + if (!GLFW.active) return; + + if (GLFW.active.windowSizeFunc) { + getWasmTableEntry(GLFW.active.windowSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height); + } + }, + onFramebufferSizeChanged:() => { + if (!GLFW.active) return; + + if (GLFW.active.framebufferSizeFunc) { + getWasmTableEntry(GLFW.active.framebufferSizeFunc)(GLFW.active.id, GLFW.active.framebufferWidth, GLFW.active.framebufferHeight); + } + }, + onWindowContentScaleChanged:(scale) => { + GLFW.scale = scale; + if (!GLFW.active) return; + + if (GLFW.active.windowContentScaleFunc) { + getWasmTableEntry(GLFW.active.windowContentScaleFunc)(GLFW.active.id, GLFW.scale, GLFW.scale); + } + }, + getTime:() => _emscripten_get_now() / 1000, + setWindowTitle:(winid, title) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + win.title = title; + if (GLFW.active.id == win.id) { + _emscripten_set_window_title(title); + } + }, + setJoystickCallback:(cbfun) => { + var prevcbfun = GLFW.joystickFunc; + GLFW.joystickFunc = cbfun; + GLFW.refreshJoysticks(); + return prevcbfun; + }, + joys:{ + }, + lastGamepadState:[], + lastGamepadStateFrame:null, + refreshJoysticks:() => { + // Produce a new Gamepad API sample if we are ticking a new game frame, or if not using emscripten_set_main_loop() at all to drive animation. + if (MainLoop.currentFrameNumber !== GLFW.lastGamepadStateFrame || !MainLoop.currentFrameNumber) { + GLFW.lastGamepadState = navigator.getGamepads ? navigator.getGamepads() : (navigator.webkitGetGamepads || []); + GLFW.lastGamepadStateFrame = MainLoop.currentFrameNumber; + + for (var joy = 0; joy < GLFW.lastGamepadState.length; ++joy) { + var gamepad = GLFW.lastGamepadState[joy]; + + if (gamepad) { + if (!GLFW.joys[joy]) { + out('glfw joystick connected:',joy); + GLFW.joys[joy] = { + id: stringToNewUTF8(gamepad.id), + buttonsCount: gamepad.buttons.length, + axesCount: gamepad.axes.length, + buttons: _malloc(gamepad.buttons.length), + axes: _malloc(gamepad.axes.length*4), + }; + + if (GLFW.joystickFunc) { + getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040001); // GLFW_CONNECTED + } + } + + var data = GLFW.joys[joy]; + + for (var i = 0; i < gamepad.buttons.length; ++i) { + HEAP8[data.buttons + i] = gamepad.buttons[i].pressed; + } + + for (var i = 0; i < gamepad.axes.length; ++i) { + HEAPF32[((data.axes + i*4)>>2)] = gamepad.axes[i]; + } + } else { + if (GLFW.joys[joy]) { + out('glfw joystick disconnected',joy); + + if (GLFW.joystickFunc) { + getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040002); // GLFW_DISCONNECTED + } + + _free(GLFW.joys[joy].id); + _free(GLFW.joys[joy].buttons); + _free(GLFW.joys[joy].axes); + + delete GLFW.joys[joy]; + } + } + } + } + }, + setKeyCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.keyFunc; + win.keyFunc = cbfun; + return prevcbfun; + }, + setCharCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.charFunc; + win.charFunc = cbfun; + return prevcbfun; + }, + setMouseButtonCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.mouseButtonFunc; + win.mouseButtonFunc = cbfun; + return prevcbfun; + }, + setCursorPosCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.cursorPosFunc; + win.cursorPosFunc = cbfun; + return prevcbfun; + }, + setScrollCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.scrollFunc; + win.scrollFunc = cbfun; + return prevcbfun; + }, + setDropCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.dropFunc; + win.dropFunc = cbfun; + return prevcbfun; + }, + onDrop:(event) => { + if (!GLFW.active || !GLFW.active.dropFunc) return; + if (!event.dataTransfer || !event.dataTransfer.files || event.dataTransfer.files.length == 0) return; + + event.preventDefault(); + + var drop_dir = '.glfw_dropped_files'; + var filenames = _malloc(event.dataTransfer.files.length * 4); + var filenamesArray = []; + for (var i = 0; i < event.dataTransfer.files.length; ++i) { + var path = `/${drop_dir}/${event.dataTransfer.files[i].name.replace(/\//g, "_")}`; + var filename = stringToNewUTF8(path); + filenamesArray.push(filename); + HEAPU32[(((filenames)+(i*4))>>2)] = filename; + } + + // Read and save the files to emscripten's FS + var written = 0; + FS.createPath('/', drop_dir); + + function save(file, in_path, numfiles) { + var path = '/' + drop_dir + in_path + '/' + file.name.replace(/\//g, '_'); + var reader = new FileReader(); + reader.onloadend = (e) => { + if (reader.readyState != 2) { // not DONE + ++written; + err(`failed to read dropped file: ${in_path}/${file.name}: ${reader.error}`); + return; + } + + var data = e.target.result; + FS.writeFile(path, new Uint8Array(data)); + if (++written === numfiles) { + getWasmTableEntry(GLFW.active.dropFunc)(GLFW.active.id, filenamesArray.length, filenames); + + for (var i = 0; i < filenamesArray.length; ++i) { + _free(filenamesArray[i]); + } + _free(filenames); + } + }; + reader.readAsArrayBuffer(file); + } + + let filesQ = []; + function finalize() { + var count = filesQ.length; + for (var i = 0; i < count; ++i) { + save(filesQ[i].file, filesQ[i].path, count); + } + } + + if (DataTransferItem.prototype.webkitGetAsEntry) { + let entriesTree = {}; + function markDone(fullpath, recursive) { + if (entriesTree[fullpath].subpaths.length != 0) return; + delete entriesTree[fullpath]; + let parentpath = fullpath.substring(0, fullpath.lastIndexOf('/')); + if (!entriesTree.hasOwnProperty(parentpath)) { + if (Object.keys(entriesTree).length == 0) finalize(); + return; + } + const fpIndex = entriesTree[parentpath].subpaths.indexOf(fullpath); + if (fpIndex > -1) entriesTree[parentpath].subpaths.splice(fpIndex, 1); + if (recursive) markDone(parentpath, true); + if (Object.keys(entriesTree).length == 0) finalize(); + } + function processEntry(entry) { + let fp = entry.fullPath; + let pp = fp.substring(0, fp.lastIndexOf('/')); + entriesTree[fp] = { subpaths: [] }; + if (entry.isFile) { + entry.file((f) => { filesQ.push({ file: f, path: pp }); markDone(fp, false); }) + } else if (entry.isDirectory) { + if (entriesTree.hasOwnProperty(pp)) entriesTree[pp].subpaths.push(fp); + FS.createPath("/" + drop_dir + pp, entry.name); + var reader = entry.createReader(); + var rRead = function (dirEntries) { + if (dirEntries.length == 0) { + markDone(fp, true); + return; + } + for (const ent of dirEntries) processEntry(ent); + reader.readEntries(rRead); + }; + reader.readEntries(rRead); + } + } + for (const item of event.dataTransfer.items) { + processEntry(item.webkitGetAsEntry()); + } + } else { + // fallback for browsers that does not support webkitGetAsEntry + for (const file of event.dataTransfer.files) { + filesQ.push({ file: file, path: "" }); + } + finalize(); + } + + return false; + }, + onDragover:(event) => { + if (!GLFW.active || !GLFW.active.dropFunc) return; + + event.preventDefault(); + return false; + }, + setWindowSizeCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowSizeFunc; + win.windowSizeFunc = cbfun; + + return prevcbfun; + }, + setWindowCloseCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowCloseFunc; + win.windowCloseFunc = cbfun; + return prevcbfun; + }, + setWindowRefreshCallback:(winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowRefreshFunc; + win.windowRefreshFunc = cbfun; + return prevcbfun; + }, + onClickRequestPointerLock:(e) => { + var canvas = Browser.getCanvas(); + if (!Browser.pointerLock && canvas.requestPointerLock) { + canvas.requestPointerLock(); + e.preventDefault(); + } + }, + setInputMode:(winid, mode, value) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + switch (mode) { + case 0x00033001: { // GLFW_CURSOR + var canvas = Browser.getCanvas(); + switch (value) { + case 0x00034001: { // GLFW_CURSOR_NORMAL + win.inputModes[mode] = value; + canvas.removeEventListener('click', GLFW.onClickRequestPointerLock, true); + document.exitPointerLock(); + break; + } + case 0x00034002: { // GLFW_CURSOR_HIDDEN + err('glfwSetInputMode called with GLFW_CURSOR_HIDDEN value not implemented'); + break; + } + case 0x00034003: { // GLFW_CURSOR_DISABLED + win.inputModes[mode] = value; + canvas.addEventListener('click', GLFW.onClickRequestPointerLock, true); + canvas.requestPointerLock(); + break; + } + default: { + err(`glfwSetInputMode called with unknown value parameter value: ${value}`); + break; + } + } + break; + } + case 0x00033002: { // GLFW_STICKY_KEYS + err('glfwSetInputMode called with GLFW_STICKY_KEYS mode not implemented'); + break; + } + case 0x00033003: { // GLFW_STICKY_MOUSE_BUTTONS + err('glfwSetInputMode called with GLFW_STICKY_MOUSE_BUTTONS mode not implemented'); + break; + } + case 0x00033004: { // GLFW_LOCK_KEY_MODS + err('glfwSetInputMode called with GLFW_LOCK_KEY_MODS mode not implemented'); + break; + } + case 0x00033005: { // GLFW_RAW_MOUSE_MOTION + err('glfwSetInputMode called with GLFW_RAW_MOUSE_MOTION mode not implemented'); + break; + } + default: { + err(`glfwSetInputMode called with unknown mode parameter value: ${mode}`); + break; + } + } + }, + getKey:(winid, key) => { + var win = GLFW.WindowFromId(winid); + if (!win) return 0; + return win.keys[key]; + }, + getMouseButton:(winid, button) => { + var win = GLFW.WindowFromId(winid); + if (!win) return 0; + return (win.buttons & (1 << button)) > 0; + }, + getCursorPos:(winid, x, y) => { + HEAPF64[((x)>>3)] = Browser.mouseX; + HEAPF64[((y)>>3)] = Browser.mouseY; + }, + getMousePos:(winid, x, y) => { + HEAP32[((x)>>2)] = Browser.mouseX; + HEAP32[((y)>>2)] = Browser.mouseY; + }, + setCursorPos:(winid, x, y) => { + }, + getWindowPos:(winid, x, y) => { + var wx = 0; + var wy = 0; + + var win = GLFW.WindowFromId(winid); + if (win) { + wx = win.x; + wy = win.y; + } + + if (x) { + HEAP32[((x)>>2)] = wx; + } + + if (y) { + HEAP32[((y)>>2)] = wy; + } + }, + setWindowPos:(winid, x, y) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + win.x = x; + win.y = y; + }, + getWindowSize:(winid, width, height) => { + var ww = 0; + var wh = 0; + + var win = GLFW.WindowFromId(winid); + if (win) { + ww = win.width; + wh = win.height; + } + + if (width) { + HEAP32[((width)>>2)] = ww; + } + + if (height) { + HEAP32[((height)>>2)] = wh; + } + }, + setWindowSize:(winid, width, height) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + if (GLFW.active.id == win.id) { + Browser.setCanvasSize(width, height); // triggers the listener (onCanvasResize) + windowSizeFunc + } + }, + defaultWindowHints:() => { + GLFW.hints = {...GLFW.defaultHints}; + }, + createWindow:(width, height, title, monitor, share) => { + var i, id; + for (i = 0; i < GLFW.windows.length && GLFW.windows[i] !== null; i++) { + // no-op + } + if (i > 0) abort("glfwCreateWindow only supports one window at time currently"); + + // id for window + id = i + 1; + + // not valid + if (width <= 0 || height <= 0) return 0; + + if (monitor) { + Browser.requestFullscreen(); + } else { + Browser.setCanvasSize(width, height); + } + + // Create context when there are no existing alive windows + for (i = 0; i < GLFW.windows.length && GLFW.windows[i] == null; i++) { + // no-op + } + + const canvas = Browser.getCanvas(); + + var useWebGL = GLFW.hints[0x00022001] > 0; // Use WebGL when we are told to based on GLFW_CLIENT_API + if (i == GLFW.windows.length) { + if (useWebGL) { + var contextAttributes = { + antialias: (GLFW.hints[0x0002100D] > 1), // GLFW_SAMPLES + depth: (GLFW.hints[0x00021005] > 0), // GLFW_DEPTH_BITS + stencil: (GLFW.hints[0x00021006] > 0), // GLFW_STENCIL_BITS + alpha: (GLFW.hints[0x00021004] > 0) // GLFW_ALPHA_BITS + } + Browser.createContext(canvas, /*useWebGL=*/true, /*setInModule=*/true, contextAttributes); + } else { + Browser.init(); + } + } + + // If context creation failed, do not return a valid window + if (!Module['ctx'] && useWebGL) return 0; + + // Initializes the framebuffer size from the canvas + var win = new GLFW_Window(id, width, height, canvas.width, canvas.height, title, monitor, share); + + // Set window to array + if (id - 1 == GLFW.windows.length) { + GLFW.windows.push(win); + } else { + GLFW.windows[id - 1] = win; + } + + GLFW.active = win; + GLFW.adjustCanvasDimensions(); + return win.id; + }, + destroyWindow:(winid) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + if (win.windowCloseFunc) { + getWasmTableEntry(win.windowCloseFunc)(win.id); + } + + GLFW.windows[win.id - 1] = null; + if (GLFW.active.id == win.id) { + GLFW.active = null; + } + + // Destroy context when no alive windows + for (win of GLFW.windows) { + if (win !== null) return; + } + + delete Module['ctx']; + }, + swapBuffers:(winid) => { + }, + requestFullscreen(lockPointer, resizeCanvas) { + Browser.lockPointer = lockPointer; + Browser.resizeCanvas = resizeCanvas; + if (typeof Browser.lockPointer == 'undefined') Browser.lockPointer = true; + if (typeof Browser.resizeCanvas == 'undefined') Browser.resizeCanvas = false; + + var canvas = Browser.getCanvas(); + function fullscreenChange() { + Browser.isFullscreen = false; + var canvasContainer = canvas.parentNode; + if (getFullscreenElement() === canvasContainer) { + canvas.exitFullscreen = Browser.exitFullscreen; + if (Browser.lockPointer) canvas.requestPointerLock(); + Browser.isFullscreen = true; + if (Browser.resizeCanvas) { + Browser.setFullscreenCanvasSize(); + } else { + Browser.updateCanvasDimensions(canvas); + Browser.updateResizeListeners(); + } + } else { + // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen + canvasContainer.parentNode.insertBefore(canvas, canvasContainer); + canvasContainer.parentNode.removeChild(canvasContainer); + + if (Browser.resizeCanvas) { + Browser.setWindowedCanvasSize(); + } else { + Browser.updateCanvasDimensions(canvas); + Browser.updateResizeListeners(); + } + } + Module['onFullScreen']?.(Browser.isFullscreen); + Module['onFullscreen']?.(Browser.isFullscreen); + } + + if (!Browser.fullscreenHandlersInstalled) { + Browser.fullscreenHandlersInstalled = true; + document.addEventListener('fullscreenchange', fullscreenChange, false); + document.addEventListener('mozfullscreenchange', fullscreenChange, false); + document.addEventListener('webkitfullscreenchange', fullscreenChange, false); + document.addEventListener('MSFullscreenChange', fullscreenChange, false); + } + + // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root + var canvasContainer = document.createElement("div"); + canvas.parentNode.insertBefore(canvasContainer, canvas); + canvasContainer.appendChild(canvas); + + // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size) + canvasContainer.requestFullscreen = canvasContainer['requestFullscreen'] || + canvasContainer['mozRequestFullScreen'] || + canvasContainer['msRequestFullscreen'] || + (canvasContainer['webkitRequestFullscreen'] ? () => canvasContainer['webkitRequestFullscreen'](Element['ALLOW_KEYBOARD_INPUT']) : null) || + (canvasContainer['webkitRequestFullScreen'] ? () => canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) : null); + + canvasContainer.requestFullscreen(); + }, + updateCanvasDimensions(canvas, wNative, hNative) { + const scale = GLFW.getHiDPIScale(); + + if (wNative && hNative) { + canvas.widthNative = wNative; + canvas.heightNative = hNative; + } else { + wNative = canvas.widthNative; + hNative = canvas.heightNative; + } + var w = wNative; + var h = hNative; + if (Module['forcedAspectRatio'] && Module['forcedAspectRatio'] > 0) { + if (w/h < Module['forcedAspectRatio']) { + w = Math.round(h * Module['forcedAspectRatio']); + } else { + h = Math.round(w / Module['forcedAspectRatio']); + } + } + if ((getFullscreenElement() === canvas.parentNode) && (typeof screen != 'undefined')) { + var factor = Math.min(screen.width / w, screen.height / h); + w = Math.round(w * factor); + h = Math.round(h * factor); + } + if (Browser.resizeCanvas) { + wNative = w; + hNative = h; + } + const wNativeScaled = Math.floor(wNative * scale); + const hNativeScaled = Math.floor(hNative * scale); + if (canvas.width != wNativeScaled) canvas.width = wNativeScaled; + if (canvas.height != hNativeScaled) canvas.height = hNativeScaled; + if (typeof canvas.style != 'undefined') { + if (!GLFW.isCSSScalingEnabled()) { + canvas.style.setProperty( "width", wNative + "px", "important"); + canvas.style.setProperty("height", hNative + "px", "important"); + } else { + canvas.style.removeProperty( "width"); + canvas.style.removeProperty("height"); + } + } + }, + calculateMouseCoords(pageX, pageY) { + // Calculate the movement based on the changes + // in the coordinates. + const rect = Browser.getCanvas().getBoundingClientRect(); + + // Neither .scrollX or .pageXOffset are defined in a spec, but + // we prefer .scrollX because it is currently in a spec draft. + // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/) + var scrollX = ((typeof window.scrollX != 'undefined') ? window.scrollX : window.pageXOffset); + var scrollY = ((typeof window.scrollY != 'undefined') ? window.scrollY : window.pageYOffset); + // If this assert lands, it's likely because the browser doesn't support scrollX or pageXOffset + // and we have no viable fallback. + assert((typeof scrollX != 'undefined') && (typeof scrollY != 'undefined'), 'Unable to retrieve scroll position, mouse positions likely broken.'); + var adjustedX = pageX - (scrollX + rect.left); + var adjustedY = pageY - (scrollY + rect.top); + + // getBoundingClientRect() returns dimension affected by CSS, so as a result: + // - when CSS scaling is enabled, this will fix the mouse coordinates to match the width/height of the window + // - otherwise the CSS width/height are forced to the width/height of the GLFW window (see updateCanvasDimensions), + // so there is no need to adjust the position + if (GLFW.isCSSScalingEnabled() && GLFW.active) { + adjustedX = adjustedX * (GLFW.active.width / rect.width); + adjustedY = adjustedY * (GLFW.active.height / rect.height); + } + + return { x: adjustedX, y: adjustedY }; + }, + setWindowAttrib:(winid, attrib, value) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + const isHiDPIAware = GLFW.isHiDPIAware(); + win.attributes[attrib] = value; + if (isHiDPIAware !== GLFW.isHiDPIAware()) + GLFW.adjustCanvasDimensions(); + }, + getDevicePixelRatio() { + return (typeof devicePixelRatio == 'number' && devicePixelRatio) || 1.0; + }, + isHiDPIAware() { + if (GLFW.active) + return GLFW.active.attributes[0x0002200C] > 0; // GLFW_SCALE_TO_MONITOR + else + return false; + }, + isCSSScalingEnabled() { + return !GLFW.isHiDPIAware(); + }, + adjustCanvasDimensions() { + if (GLFW.active) { + Browser.updateCanvasDimensions(Browser.getCanvas(), GLFW.active.width, GLFW.active.height); + Browser.updateResizeListeners(); + } + }, + getHiDPIScale() { + return GLFW.isHiDPIAware() ? GLFW.scale : 1.0; + }, + onDevicePixelRatioChange() { + GLFW.onWindowContentScaleChanged(GLFW.getDevicePixelRatio()); + GLFW.adjustCanvasDimensions(); + }, + GLFW2ParamToGLFW3Param:(param) => { + var table = { + 0x00030001:0, // GLFW_MOUSE_CURSOR + 0x00030002:0, // GLFW_STICKY_KEYS + 0x00030003:0, // GLFW_STICKY_MOUSE_BUTTONS + 0x00030004:0, // GLFW_SYSTEM_KEYS + 0x00030005:0, // GLFW_KEY_REPEAT + 0x00030006:0, // GLFW_AUTO_POLL_EVENTS + 0x00020001:0, // GLFW_OPENED + 0x00020002:0, // GLFW_ACTIVE + 0x00020003:0, // GLFW_ICONIFIED + 0x00020004:0, // GLFW_ACCELERATED + 0x00020005:0x00021001, // GLFW_RED_BITS + 0x00020006:0x00021002, // GLFW_GREEN_BITS + 0x00020007:0x00021003, // GLFW_BLUE_BITS + 0x00020008:0x00021004, // GLFW_ALPHA_BITS + 0x00020009:0x00021005, // GLFW_DEPTH_BITS + 0x0002000A:0x00021006, // GLFW_STENCIL_BITS + 0x0002000B:0x0002100F, // GLFW_REFRESH_RATE + 0x0002000C:0x00021007, // GLFW_ACCUM_RED_BITS + 0x0002000D:0x00021008, // GLFW_ACCUM_GREEN_BITS + 0x0002000E:0x00021009, // GLFW_ACCUM_BLUE_BITS + 0x0002000F:0x0002100A, // GLFW_ACCUM_ALPHA_BITS + 0x00020010:0x0002100B, // GLFW_AUX_BUFFERS + 0x00020011:0x0002100C, // GLFW_STEREO + 0x00020012:0, // GLFW_WINDOW_NO_RESIZE + 0x00020013:0x0002100D, // GLFW_FSAA_SAMPLES + 0x00020014:0x00022002, // GLFW_OPENGL_VERSION_MAJOR + 0x00020015:0x00022003, // GLFW_OPENGL_VERSION_MINOR + 0x00020016:0x00022006, // GLFW_OPENGL_FORWARD_COMPAT + 0x00020017:0x00022007, // GLFW_OPENGL_DEBUG_CONTEXT + 0x00020018:0x00022008, // GLFW_OPENGL_PROFILE + }; + return table[param]; + }, + }; + var _glfwCreateWindow = (width, height, title, monitor, share) => GLFW.createWindow(width, height, title, monitor, share); + + var _glfwDefaultWindowHints = () => GLFW.defaultWindowHints(); + + var _glfwGetPrimaryMonitor = () => 1; + + var _glfwGetTime = () => GLFW.getTime() - GLFW.initialTime; + + var _glfwGetVideoModes = (monitor, count) => { + HEAP32[((count)>>2)] = 0; + return 0; + }; + + var _glfwInit = () => { + if (GLFW.windows) return 1; // GL_TRUE + + GLFW.initialTime = GLFW.getTime(); + GLFW.defaultWindowHints(); + GLFW.windows = new Array() + GLFW.active = null; + GLFW.scale = GLFW.getDevicePixelRatio(); + + window.addEventListener('gamepadconnected', GLFW.onGamepadConnected, true); + window.addEventListener('gamepaddisconnected', GLFW.onGamepadDisconnected, true); + window.addEventListener('keydown', GLFW.onKeydown, true); + window.addEventListener('keypress', GLFW.onKeyPress, true); + window.addEventListener('keyup', GLFW.onKeyup, true); + window.addEventListener('blur', GLFW.onBlur, true); + + // watch for devicePixelRatio changes + GLFW.devicePixelRatioMQL = window.matchMedia('(resolution: ' + GLFW.getDevicePixelRatio() + 'dppx)'); + GLFW.devicePixelRatioMQL.addEventListener('change', GLFW.onDevicePixelRatioChange); + + var canvas = Browser.getCanvas(); + canvas.addEventListener('touchmove', GLFW.onMousemove, true); + canvas.addEventListener('touchstart', GLFW.onMouseButtonDown, true); + canvas.addEventListener('touchcancel', GLFW.onMouseButtonUp, true); + canvas.addEventListener('touchend', GLFW.onMouseButtonUp, true); + canvas.addEventListener('mousemove', GLFW.onMousemove, true); + canvas.addEventListener('mousedown', GLFW.onMouseButtonDown, true); + canvas.addEventListener("mouseup", GLFW.onMouseButtonUp, true); + canvas.addEventListener('wheel', GLFW.onMouseWheel, true); + canvas.addEventListener('mousewheel', GLFW.onMouseWheel, true); + canvas.addEventListener('mouseenter', GLFW.onMouseenter, true); + canvas.addEventListener('mouseleave', GLFW.onMouseleave, true); + canvas.addEventListener('drop', GLFW.onDrop, true); + canvas.addEventListener('dragover', GLFW.onDragover, true); + + // Overriding implementation to account for HiDPI + Browser.requestFullscreen = GLFW.requestFullscreen; + Browser.calculateMouseCoords = GLFW.calculateMouseCoords; + Browser.updateCanvasDimensions = GLFW.updateCanvasDimensions; + + Browser.resizeListeners.push((width, height) => { + if (GLFW.isHiDPIAware()) { + var canvas = Browser.getCanvas(); + GLFW.onCanvasResize(canvas.clientWidth, canvas.clientHeight, width, height); + } else { + GLFW.onCanvasResize(width, height, width, height); + } + }); + + return 1; // GL_TRUE + }; + + var _glfwMakeContextCurrent = (winid) => 0; + + var _glfwSetCharCallback = (winid, cbfun) => GLFW.setCharCallback(winid, cbfun); + + var _glfwSetCursorEnterCallback = (winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.cursorEnterFunc; + win.cursorEnterFunc = cbfun; + return prevcbfun; + }; + + var _glfwSetCursorPosCallback = (winid, cbfun) => GLFW.setCursorPosCallback(winid, cbfun); + + var _glfwSetDropCallback = (winid, cbfun) => GLFW.setDropCallback(winid, cbfun); + + var _glfwSetErrorCallback = (cbfun) => { + var prevcbfun = GLFW.errorFunc; + GLFW.errorFunc = cbfun; + return prevcbfun; + }; + + var _glfwSetKeyCallback = (winid, cbfun) => GLFW.setKeyCallback(winid, cbfun); + + var _glfwSetMouseButtonCallback = (winid, cbfun) => GLFW.setMouseButtonCallback(winid, cbfun); + + var _glfwSetScrollCallback = (winid, cbfun) => GLFW.setScrollCallback(winid, cbfun); + + var _glfwSetWindowContentScaleCallback = (winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowContentScaleFunc; + win.windowContentScaleFunc = cbfun; + return prevcbfun; + }; + + var _glfwSetWindowFocusCallback = (winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowFocusFunc; + win.windowFocusFunc = cbfun; + return prevcbfun; + }; + + var _glfwSetWindowIconifyCallback = (winid, cbfun) => { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowIconifyFunc; + win.windowIconifyFunc = cbfun; + return prevcbfun; + }; + + var _glfwSetWindowShouldClose = (winid, value) => { + var win = GLFW.WindowFromId(winid); + if (!win) return; + win.shouldClose = value; + }; + + var _glfwSetWindowSize = (winid, width, height) => GLFW.setWindowSize(winid, width, height); + + var _glfwSetWindowSizeCallback = (winid, cbfun) => GLFW.setWindowSizeCallback(winid, cbfun); + + var _glfwSwapBuffers = (winid) => GLFW.swapBuffers(winid); + + var _glfwTerminate = () => { + window.removeEventListener('gamepadconnected', GLFW.onGamepadConnected, true); + window.removeEventListener('gamepaddisconnected', GLFW.onGamepadDisconnected, true); + window.removeEventListener('keydown', GLFW.onKeydown, true); + window.removeEventListener('keypress', GLFW.onKeyPress, true); + window.removeEventListener('keyup', GLFW.onKeyup, true); + window.removeEventListener('blur', GLFW.onBlur, true); + var canvas = Browser.getCanvas(); + canvas.removeEventListener('touchmove', GLFW.onMousemove, true); + canvas.removeEventListener('touchstart', GLFW.onMouseButtonDown, true); + canvas.removeEventListener('touchcancel', GLFW.onMouseButtonUp, true); + canvas.removeEventListener('touchend', GLFW.onMouseButtonUp, true); + canvas.removeEventListener('mousemove', GLFW.onMousemove, true); + canvas.removeEventListener('mousedown', GLFW.onMouseButtonDown, true); + canvas.removeEventListener('mouseup', GLFW.onMouseButtonUp, true); + canvas.removeEventListener('wheel', GLFW.onMouseWheel, true); + canvas.removeEventListener('mousewheel', GLFW.onMouseWheel, true); + canvas.removeEventListener('mouseenter', GLFW.onMouseenter, true); + canvas.removeEventListener('mouseleave', GLFW.onMouseleave, true); + canvas.removeEventListener('drop', GLFW.onDrop, true); + canvas.removeEventListener('dragover', GLFW.onDragover, true); + + if (GLFW.devicePixelRatioMQL) + GLFW.devicePixelRatioMQL.removeEventListener('change', GLFW.onDevicePixelRatioChange); + + canvas.width = canvas.height = 1; + GLFW.windows = null; + GLFW.active = null; + }; + + var _glfwWindowHint = (target, hint) => { + GLFW.hints[target] = hint; + }; + + + + var requestFullscreen = Browser.requestFullscreen; + + FS.createPreloadedFile = FS_createPreloadedFile; + FS.preloadFile = FS_preloadFile; + FS.staticInit();; +for (let i = 0; i < 32; ++i) tempFixedLengthArray.push(new Array(i));; +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); + }; +var miniTempWebGLIntBuffersStorage = new Int32Array(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) { + miniTempWebGLIntBuffers[i] = miniTempWebGLIntBuffersStorage.subarray(0, i); + }; + + Module['requestAnimationFrame'] = MainLoop.requestAnimationFrame; + Module['pauseMainLoop'] = MainLoop.pause; + Module['resumeMainLoop'] = MainLoop.resume; + MainLoop.init();; +// End JS library code + +// include: postlibrary.js +// This file is included after the automatically-generated JS library code +// but before the wasm module is created. + +{ + + // Begin ATMODULES hooks + if (Module['noExitRuntime']) noExitRuntime = Module['noExitRuntime']; +if (Module['preloadPlugins']) preloadPlugins = Module['preloadPlugins']; +if (Module['print']) out = Module['print']; +if (Module['printErr']) err = Module['printErr']; +if (Module['wasmBinary']) wasmBinary = Module['wasmBinary']; + // End ATMODULES hooks + + checkIncomingModuleAPI(); + + if (Module['arguments']) arguments_ = Module['arguments']; + if (Module['thisProgram']) thisProgram = Module['thisProgram']; + + // 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'); + assert(typeof Module['ENVIRONMENT'] == 'undefined', 'Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)'); + assert(typeof Module['STACK_SIZE'] == 'undefined', 'STACK_SIZE can no longer be set at runtime. Use -sSTACK_SIZE at link time') + // If memory is defined in wasm, the user can't provide it, or set INITIAL_MEMORY + assert(typeof Module['wasmMemory'] == 'undefined', 'Use of `wasmMemory` detected. Use -sIMPORTED_MEMORY to define wasmMemory externally'); + assert(typeof Module['INITIAL_MEMORY'] == 'undefined', 'Detected runtime INITIAL_MEMORY setting. Use -sIMPORTED_MEMORY to define wasmMemory dynamically'); + + if (Module['preInit']) { + if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']]; + while (Module['preInit'].length > 0) { + Module['preInit'].shift()(); + } + } + consumedModuleProp('preInit'); +} + +// Begin runtime exports + Module['requestFullscreen'] = requestFullscreen; + var missingLibrarySymbols = [ + 'writeI53ToI64Clamped', + 'writeI53ToI64Signaling', + 'writeI53ToU64Clamped', + 'writeI53ToU64Signaling', + 'convertI32PairToI53', + 'convertI32PairToI53Checked', + 'convertU32PairToI53', + 'stackAlloc', + 'getTempRet0', + 'setTempRet0', + 'createNamedFunction', + 'zeroMemory', + 'withStackSave', + 'inetPton4', + 'inetNtop4', + 'inetPton6', + 'inetNtop6', + 'readSockaddr', + 'writeSockaddr', + 'runMainThreadEmAsm', + 'getExecutableName', + 'autoResumeAudioContext', + 'getDynCaller', + 'dynCall', + 'runtimeKeepalivePush', + 'runtimeKeepalivePop', + 'asmjsMangle', + 'HandleAllocator', + 'addOnInit', + 'addOnPostCtor', + 'addOnPreMain', + 'STACK_SIZE', + 'STACK_ALIGN', + 'POINTER_SIZE', + 'ASSERTIONS', + 'ccall', + 'cwrap', + 'convertJsFunctionToWasm', + 'getEmptyTableSlot', + 'updateTableMap', + 'getFunctionAddress', + 'addFunction', + 'removeFunction', + 'intArrayToString', + 'AsciiToString', + 'stringToAscii', + 'UTF16ToString', + 'stringToUTF16', + 'lengthBytesUTF16', + 'UTF32ToString', + 'stringToUTF32', + 'lengthBytesUTF32', + 'stringToUTF8OnStack', + 'writeArrayToMemory', + 'registerKeyEventCallback', + 'registerWheelEventCallback', + 'fillDeviceOrientationEventData', + 'registerDeviceOrientationEventCallback', + 'fillDeviceMotionEventData', + 'registerDeviceMotionEventCallback', + 'screenOrientation', + 'fillOrientationChangeEventData', + 'registerOrientationChangeEventCallback', + 'JSEvents_requestFullscreen', + 'JSEvents_resizeCanvasForFullscreen', + 'registerRestoreOldStyle', + 'hideEverythingExceptGivenElement', + 'restoreHiddenElements', + 'setLetterbox', + 'softFullscreenResizeWebGLRenderTarget', + 'doRequestFullscreen', + 'registerPointerlockErrorEventCallback', + 'requestPointerLock', + 'registerBeforeUnloadEventCallback', + 'fillBatteryEventData', + 'registerBatteryEventCallback', + 'setCanvasElementSize', + 'getCanvasElementSize', + 'jsStackTrace', + 'getCallstack', + 'convertPCtoSourceLocation', + 'getEnvStrings', + 'wasiRightsToMuslOFlags', + 'wasiOFlagsToMuslOFlags', + 'setImmediateWrapped', + 'safeRequestAnimationFrame', + 'clearImmediateWrapped', + 'registerPostMainLoop', + 'registerPreMainLoop', + 'getPromise', + 'makePromise', + 'idsToPromises', + 'makePromiseCallback', + 'ExceptionInfo', + 'findMatchingCatch', + 'Browser_asyncPrepareDataCounter', + 'isLeapYear', + 'ydayFromDate', + 'arraySum', + 'addDays', + 'getSocketFromFD', + 'getSocketAddress', + 'FS_mkdirTree', + '_setNetworkCallback', + 'writeGLArray', + 'registerWebGlEventCallback', + 'runAndAbortIfError', + 'ALLOC_NORMAL', + 'ALLOC_STACK', + 'allocate', + 'writeStringToMemory', + 'writeAsciiToMemory', + 'allocateUTF8', + 'allocateUTF8OnStack', + 'demangle', + 'stackTrace', + 'getNativeTypeSize', +]; +missingLibrarySymbols.forEach(missingLibrarySymbol) + + var unexportedSymbols = [ + 'run', + 'out', + 'err', + 'callMain', + 'abort', + 'wasmExports', + 'HEAPF32', + 'HEAPF64', + 'HEAP8', + 'HEAPU8', + 'HEAP16', + 'HEAPU16', + 'HEAP32', + 'HEAPU32', + 'HEAP64', + 'HEAPU64', + 'writeStackCookie', + 'checkStackCookie', + 'writeI53ToI64', + 'readI53FromI64', + 'readI53FromU64', + 'INT53_MAX', + 'INT53_MIN', + 'bigintToI53Checked', + 'stackSave', + 'stackRestore', + 'ptrToString', + 'exitJS', + 'getHeapMax', + 'growMemory', + 'ENV', + 'ERRNO_CODES', + 'strError', + 'DNS', + 'Protocols', + 'Sockets', + 'timers', + 'warnOnce', + 'readEmAsmArgsArray', + 'readEmAsmArgs', + 'runEmAsmFunction', + 'jstoi_q', + 'handleException', + 'keepRuntimeAlive', + 'callUserCallback', + 'maybeExit', + 'asyncLoad', + 'alignMemory', + 'mmapAlloc', + 'wasmTable', + 'wasmMemory', + 'getUniqueRunDependency', + 'noExitRuntime', + 'addRunDependency', + 'removeRunDependency', + 'addOnPreRun', + 'addOnExit', + 'addOnPostRun', + 'freeTableIndexes', + 'functionsInTableMap', + 'setValue', + 'getValue', + 'PATH', + 'PATH_FS', + 'UTF8Decoder', + 'UTF8ArrayToString', + 'UTF8ToString', + 'stringToUTF8Array', + 'stringToUTF8', + 'lengthBytesUTF8', + 'intArrayFromString', + 'UTF16Decoder', + 'stringToNewUTF8', + 'JSEvents', + 'specialHTMLTargets', + 'maybeCStringToJsString', + 'findEventTarget', + 'findCanvasEventTarget', + 'getBoundingClientRect', + 'fillMouseEventData', + 'registerMouseEventCallback', + 'registerUiEventCallback', + 'registerFocusEventCallback', + 'fillFullscreenChangeEventData', + 'registerFullscreenChangeEventCallback', + 'currentFullscreenStrategy', + 'restoreOldWindowedStyle', + 'fillPointerlockChangeEventData', + 'registerPointerlockChangeEventCallback', + 'fillVisibilityChangeEventData', + 'registerVisibilityChangeEventCallback', + 'registerTouchEventCallback', + 'fillGamepadEventData', + 'registerGamepadEventCallback', + 'UNWIND_CACHE', + 'ExitStatus', + 'checkWasiClock', + 'doReadv', + 'doWritev', + 'initRandomFill', + 'randomFill', + 'safeSetTimeout', + 'emSetImmediate', + 'emClearImmediate_deps', + 'emClearImmediate', + 'promiseMap', + 'uncaughtExceptionCount', + 'exceptionLast', + 'exceptionCaught', + 'Browser', + 'requestFullScreen', + 'setCanvasSize', + 'getUserMedia', + 'createContext', + 'getPreloadedImageData__data', + 'wget', + 'MONTH_DAYS_REGULAR', + 'MONTH_DAYS_LEAP', + 'MONTH_DAYS_REGULAR_CUMULATIVE', + 'MONTH_DAYS_LEAP_CUMULATIVE', + 'SYSCALLS', + 'preloadPlugins', + 'FS_createPreloadedFile', + 'FS_preloadFile', + 'FS_modeStringToFlags', + 'FS_getMode', + 'FS_fileDataToTypedArray', + 'FS_stdin_getChar_buffer', + 'FS_stdin_getChar', + 'FS_unlink', + 'FS_createPath', + 'FS_createDevice', + 'FS_readFile', + 'FS', + 'FS_root', + 'FS_mounts', + 'FS_devices', + 'FS_streams', + 'FS_nextInode', + 'FS_nameTable', + 'FS_currentPath', + 'FS_initialized', + 'FS_ignorePermissions', + 'FS_filesystems', + 'FS_syncFSRequests', + 'FS_lookupPath', + 'FS_getPath', + 'FS_hashName', + 'FS_hashAddNode', + 'FS_hashRemoveNode', + 'FS_lookupNode', + 'FS_createNode', + 'FS_destroyNode', + 'FS_isRoot', + 'FS_isMountpoint', + 'FS_isFile', + 'FS_isDir', + 'FS_isLink', + 'FS_isChrdev', + 'FS_isBlkdev', + 'FS_isFIFO', + 'FS_isSocket', + 'FS_flagsToPermissionString', + 'FS_nodePermissions', + 'FS_mayLookup', + 'FS_mayCreate', + 'FS_mayDelete', + 'FS_mayOpen', + 'FS_checkOpExists', + 'FS_nextfd', + 'FS_getStreamChecked', + 'FS_getStream', + 'FS_createStream', + 'FS_closeStream', + 'FS_dupStream', + 'FS_doSetAttr', + 'FS_chrdev_stream_ops', + 'FS_major', + 'FS_minor', + 'FS_makedev', + 'FS_registerDevice', + 'FS_getDevice', + 'FS_getMounts', + 'FS_syncfs', + 'FS_mount', + 'FS_unmount', + 'FS_lookup', + 'FS_mknod', + 'FS_statfs', + 'FS_statfsStream', + 'FS_statfsNode', + 'FS_create', + 'FS_mkdir', + 'FS_mkdev', + 'FS_symlink', + 'FS_rename', + 'FS_rmdir', + 'FS_readdir', + 'FS_readlink', + 'FS_stat', + 'FS_fstat', + 'FS_lstat', + 'FS_doChmod', + 'FS_chmod', + 'FS_lchmod', + 'FS_fchmod', + 'FS_doChown', + 'FS_chown', + 'FS_lchown', + 'FS_fchown', + 'FS_doTruncate', + 'FS_truncate', + 'FS_ftruncate', + 'FS_utime', + 'FS_open', + 'FS_close', + 'FS_isClosed', + 'FS_llseek', + 'FS_read', + 'FS_write', + 'FS_mmap', + 'FS_msync', + 'FS_ioctl', + 'FS_writeFile', + 'FS_cwd', + 'FS_chdir', + 'FS_createDefaultDirectories', + 'FS_createDefaultDevices', + 'FS_createSpecialDirectories', + 'FS_createStandardStreams', + 'FS_staticInit', + 'FS_init', + 'FS_quit', + 'FS_findObject', + 'FS_analyzePath', + 'FS_createFile', + 'FS_createDataFile', + 'FS_forceLoadFile', + 'FS_createLazyFile', + 'MEMFS', + 'TTY', + 'PIPEFS', + 'SOCKFS', + 'tempFixedLengthArray', + 'miniTempWebGLFloatBuffers', + 'miniTempWebGLIntBuffers', + 'heapObjectForWebGLType', + 'toTypedArrayIndex', + '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', + 'emscriptenWebGLGet', + 'computeUnpackAlignedImageSize', + 'colorChannelsInGlTextureFormat', + 'emscriptenWebGLGetTexPixelData', + 'emscriptenWebGLGetUniform', + 'webglGetUniformLocation', + 'webglPrepareUniformLocationsBeforeFirstUse', + 'webglGetLeftBracePos', + 'emscriptenWebGLGetVertexAttrib', + '__glGetActiveAttribOrUniform', + 'AL', + 'GLUT', + 'EGL', + 'GLEW', + 'IDBStore', + 'SDL', + 'SDL_gfx', + 'GLFW_Window', + 'GLFW', + 'print', + 'printErr', + 'jstoi_s', +]; +unexportedSymbols.forEach(unexportedRuntimeSymbol); + + // End runtime exports + // Begin JS library exports + // End JS library exports + +// end include: postlibrary.js + +function checkIncomingModuleAPI() { + ignoredModuleProp('fetchSettings'); + ignoredModuleProp('logReadFiles'); + ignoredModuleProp('loadSplitModule'); + ignoredModuleProp('onMalloc'); + ignoredModuleProp('onRealloc'); + ignoredModuleProp('onFree'); + ignoredModuleProp('onSbrkGrow'); +} +var ASM_CONSTS = { + 88406: () => { if (document.fullscreenElement) return 1; }, + 88452: () => { return Module.canvas.width; }, + 88484: () => { return parseInt(Module.canvas.style.width); }, + 88532: () => { document.exitFullscreen(); }, + 88559: () => { setTimeout(function(){ Module.requestFullscreen(false, false); }, 100); }, + 88631: () => { if (document.fullscreenElement) return 1; }, + 88677: () => { return Module.canvas.width; }, + 88709: () => { return screen.width; }, + 88734: () => { document.exitFullscreen(); }, + 88761: ($0) => { const canvasId = UTF8ToString($0); setTimeout(function() { Module.requestFullscreen(false, true); setTimeout(function() { document.querySelector(canvasId).style.width="unset"; }, 100); }, 100); }, + 88955: () => { return window.innerWidth; }, + 88981: () => { return window.innerHeight; }, + 89008: () => { if (document.fullscreenElement) return 1; }, + 89054: () => { return Module.canvas.width; }, + 89086: () => { return parseInt(Module.canvas.style.width); }, + 89134: () => { if (document.fullscreenElement) return 1; }, + 89180: () => { return Module.canvas.width; }, + 89212: () => { return screen.width; }, + 89237: () => { return window.innerWidth; }, + 89263: () => { return window.innerHeight; }, + 89290: () => { if (document.fullscreenElement) return 1; }, + 89336: () => { return Module.canvas.width; }, + 89368: () => { return screen.width; }, + 89393: () => { document.exitFullscreen(); }, + 89420: () => { if (document.fullscreenElement) return 1; }, + 89466: () => { return Module.canvas.width; }, + 89498: () => { return parseInt(Module.canvas.style.width); }, + 89546: () => { document.exitFullscreen(); }, + 89573: ($0) => { Module.canvas.style.opacity = $0; }, + 89611: () => { return screen.width; }, + 89636: () => { return screen.height; }, + 89662: () => { return window.screenX; }, + 89689: () => { return window.screenY; }, + 89716: () => { return window.devicePixelRatio; }, + 89752: ($0) => { navigator.clipboard.writeText(UTF8ToString($0)); }, + 89805: ($0) => { Module.canvas.style.cursor = UTF8ToString($0); }, + 89856: () => { Module.canvas.style.cursor = 'none'; }, + 89893: ($0, $1, $2, $3) => { try { navigator.getGamepads()[$0].vibrationActuator.playEffect('dual-rumble', { startDelay: 0, duration: $3, weakMagnitude: $1, strongMagnitude: $2 }); } catch (e) { try { navigator.getGamepads()[$0].hapticActuators[0].pulse($2, $3); } catch (e) { } } }, + 90149: ($0) => { Module.canvas.style.cursor = UTF8ToString($0); }, + 90200: () => { if (document.pointerLockElement) return 1; }, + 90247: () => { if (document.fullscreenElement) return 1; }, + 90293: () => { return window.innerWidth; }, + 90319: () => { return window.innerHeight; } +}; +function SetCanvasIdJs(out,outSize) { var canvasId = "#" + Module.canvas.id; stringToUTF8(canvasId, out, outSize); } +function __asyncjs__RequestClipboardData() { return Asyncify.handleAsync(async () => { if (navigator.clipboard && window.isSecureContext) { let items = await navigator.clipboard.read(); for (const item of items) { if (item.types.includes("text/plain")) { const blob = await item.getType("text/plain"); const text = await blob.text(); window._lastClipboardString = text; } else if (item.types.find(t => t.startsWith("image/"))) { const blob = await item.getType(item.types.find(t => t.startsWith("image/"))); const bitmap = await createImageBitmap(blob); const canvas = document.createElement('canvas'); canvas.width = bitmap.width; canvas.height = bitmap.height; const ctx = canvas.getContext('2d'); ctx.drawImage(bitmap, 0, 0); const imgData = ctx.getImageData(0, 0, canvas.width, canvas.height).data; window._lastImgWidth = canvas.width; window._lastImgHeight = canvas.height; window._lastImgData = imgData; } } } else console.warn("Clipboard read() requires HTTPS/Localhost"); }); } +function GetLastPastedText() { var str = window._lastClipboardString || ""; var length = lengthBytesUTF8(str) + 1; if (length > 1) { var ptr = _malloc(length); stringToUTF8(str, ptr, length); return ptr; } return 0; } +function GetLastPastedImage(width,height) { if (window._lastImgData) { const data = window._lastImgData; if (data.length > 0) { const ptr = _malloc(data.length); HEAPU8.set(data, ptr); if (width) setValue(width, window._lastImgWidth, 'i32'); if (height) setValue(height, window._lastImgHeight, 'i32'); window._lastImgData = null; return ptr; } } return 0; } + +// Imports from the Wasm binary. +var _malloc = makeInvalidEarlyAccess('_malloc'); +var _free = makeInvalidEarlyAccess('_free'); +var _main = Module['_main'] = makeInvalidEarlyAccess('_main'); +var _fflush = makeInvalidEarlyAccess('_fflush'); +var _emscripten_stack_get_end = makeInvalidEarlyAccess('_emscripten_stack_get_end'); +var _emscripten_stack_get_base = makeInvalidEarlyAccess('_emscripten_stack_get_base'); +var _strerror = makeInvalidEarlyAccess('_strerror'); +var _emscripten_stack_init = makeInvalidEarlyAccess('_emscripten_stack_init'); +var _emscripten_stack_get_free = makeInvalidEarlyAccess('_emscripten_stack_get_free'); +var __emscripten_stack_restore = makeInvalidEarlyAccess('__emscripten_stack_restore'); +var __emscripten_stack_alloc = makeInvalidEarlyAccess('__emscripten_stack_alloc'); +var _emscripten_stack_get_current = makeInvalidEarlyAccess('_emscripten_stack_get_current'); +var memory = makeInvalidEarlyAccess('memory'); +var __indirect_function_table = makeInvalidEarlyAccess('__indirect_function_table'); +var wasmMemory = makeInvalidEarlyAccess('wasmMemory'); +var wasmTable = makeInvalidEarlyAccess('wasmTable'); + +function assignWasmExports(wasmExports) { + assert(typeof wasmExports['malloc'] != 'undefined', 'missing Wasm export: malloc'); + assert(typeof wasmExports['free'] != 'undefined', 'missing Wasm export: free'); + assert(typeof wasmExports['main'] != 'undefined', 'missing Wasm export: main'); + assert(typeof wasmExports['fflush'] != 'undefined', 'missing Wasm export: fflush'); + assert(typeof wasmExports['emscripten_stack_get_end'] != 'undefined', 'missing Wasm export: emscripten_stack_get_end'); + assert(typeof wasmExports['emscripten_stack_get_base'] != 'undefined', 'missing Wasm export: emscripten_stack_get_base'); + assert(typeof wasmExports['strerror'] != 'undefined', 'missing Wasm export: strerror'); + assert(typeof wasmExports['emscripten_stack_init'] != 'undefined', 'missing Wasm export: emscripten_stack_init'); + assert(typeof wasmExports['emscripten_stack_get_free'] != 'undefined', 'missing Wasm export: emscripten_stack_get_free'); + assert(typeof wasmExports['_emscripten_stack_restore'] != 'undefined', 'missing Wasm export: _emscripten_stack_restore'); + assert(typeof wasmExports['_emscripten_stack_alloc'] != 'undefined', 'missing Wasm export: _emscripten_stack_alloc'); + assert(typeof wasmExports['emscripten_stack_get_current'] != 'undefined', 'missing Wasm export: emscripten_stack_get_current'); + assert(typeof wasmExports['memory'] != 'undefined', 'missing Wasm export: memory'); + assert(typeof wasmExports['__indirect_function_table'] != 'undefined', 'missing Wasm export: __indirect_function_table'); + _malloc = createExportWrapper('malloc', 1); + _free = createExportWrapper('free', 1); + _main = Module['_main'] = createExportWrapper('main', 2); + _fflush = createExportWrapper('fflush', 1); + _emscripten_stack_get_end = wasmExports['emscripten_stack_get_end']; + _emscripten_stack_get_base = wasmExports['emscripten_stack_get_base']; + _strerror = createExportWrapper('strerror', 1); + _emscripten_stack_init = wasmExports['emscripten_stack_init']; + _emscripten_stack_get_free = wasmExports['emscripten_stack_get_free']; + __emscripten_stack_restore = wasmExports['_emscripten_stack_restore']; + __emscripten_stack_alloc = wasmExports['_emscripten_stack_alloc']; + _emscripten_stack_get_current = wasmExports['emscripten_stack_get_current']; + memory = wasmMemory = wasmExports['memory']; + __indirect_function_table = wasmTable = wasmExports['__indirect_function_table']; +} + +var wasmImports = { + /** @export */ + SetCanvasIdJs, + /** @export */ + __assert_fail: ___assert_fail, + /** @export */ + __syscall_faccessat: ___syscall_faccessat, + /** @export */ + __syscall_fcntl64: ___syscall_fcntl64, + /** @export */ + __syscall_getcwd: ___syscall_getcwd, + /** @export */ + __syscall_ioctl: ___syscall_ioctl, + /** @export */ + __syscall_openat: ___syscall_openat, + /** @export */ + _abort_js: __abort_js, + /** @export */ + clock_time_get: _clock_time_get, + /** @export */ + emscripten_asm_const_double: _emscripten_asm_const_double, + /** @export */ + emscripten_asm_const_int: _emscripten_asm_const_int, + /** @export */ + emscripten_date_now: _emscripten_date_now, + /** @export */ + emscripten_get_element_css_size: _emscripten_get_element_css_size, + /** @export */ + emscripten_get_gamepad_status: _emscripten_get_gamepad_status, + /** @export */ + emscripten_get_now: _emscripten_get_now, + /** @export */ + emscripten_get_num_gamepads: _emscripten_get_num_gamepads, + /** @export */ + emscripten_glActiveTexture: _emscripten_glActiveTexture, + /** @export */ + emscripten_glAttachShader: _emscripten_glAttachShader, + /** @export */ + emscripten_glBeginQueryEXT: _emscripten_glBeginQueryEXT, + /** @export */ + emscripten_glBindAttribLocation: _emscripten_glBindAttribLocation, + /** @export */ + emscripten_glBindBuffer: _emscripten_glBindBuffer, + /** @export */ + emscripten_glBindFramebuffer: _emscripten_glBindFramebuffer, + /** @export */ + emscripten_glBindRenderbuffer: _emscripten_glBindRenderbuffer, + /** @export */ + emscripten_glBindTexture: _emscripten_glBindTexture, + /** @export */ + emscripten_glBindVertexArrayOES: _emscripten_glBindVertexArrayOES, + /** @export */ + emscripten_glBlendColor: _emscripten_glBlendColor, + /** @export */ + emscripten_glBlendEquation: _emscripten_glBlendEquation, + /** @export */ + emscripten_glBlendEquationSeparate: _emscripten_glBlendEquationSeparate, + /** @export */ + emscripten_glBlendFunc: _emscripten_glBlendFunc, + /** @export */ + emscripten_glBlendFuncSeparate: _emscripten_glBlendFuncSeparate, + /** @export */ + emscripten_glBufferData: _emscripten_glBufferData, + /** @export */ + emscripten_glBufferSubData: _emscripten_glBufferSubData, + /** @export */ + emscripten_glCheckFramebufferStatus: _emscripten_glCheckFramebufferStatus, + /** @export */ + emscripten_glClear: _emscripten_glClear, + /** @export */ + emscripten_glClearColor: _emscripten_glClearColor, + /** @export */ + emscripten_glClearDepthf: _emscripten_glClearDepthf, + /** @export */ + emscripten_glClearStencil: _emscripten_glClearStencil, + /** @export */ + emscripten_glClipControlEXT: _emscripten_glClipControlEXT, + /** @export */ + emscripten_glColorMask: _emscripten_glColorMask, + /** @export */ + emscripten_glCompileShader: _emscripten_glCompileShader, + /** @export */ + emscripten_glCompressedTexImage2D: _emscripten_glCompressedTexImage2D, + /** @export */ + emscripten_glCompressedTexSubImage2D: _emscripten_glCompressedTexSubImage2D, + /** @export */ + emscripten_glCopyTexImage2D: _emscripten_glCopyTexImage2D, + /** @export */ + emscripten_glCopyTexSubImage2D: _emscripten_glCopyTexSubImage2D, + /** @export */ + emscripten_glCreateProgram: _emscripten_glCreateProgram, + /** @export */ + emscripten_glCreateShader: _emscripten_glCreateShader, + /** @export */ + emscripten_glCullFace: _emscripten_glCullFace, + /** @export */ + emscripten_glDeleteBuffers: _emscripten_glDeleteBuffers, + /** @export */ + emscripten_glDeleteFramebuffers: _emscripten_glDeleteFramebuffers, + /** @export */ + emscripten_glDeleteProgram: _emscripten_glDeleteProgram, + /** @export */ + emscripten_glDeleteQueriesEXT: _emscripten_glDeleteQueriesEXT, + /** @export */ + emscripten_glDeleteRenderbuffers: _emscripten_glDeleteRenderbuffers, + /** @export */ + emscripten_glDeleteShader: _emscripten_glDeleteShader, + /** @export */ + emscripten_glDeleteTextures: _emscripten_glDeleteTextures, + /** @export */ + emscripten_glDeleteVertexArraysOES: _emscripten_glDeleteVertexArraysOES, + /** @export */ + emscripten_glDepthFunc: _emscripten_glDepthFunc, + /** @export */ + emscripten_glDepthMask: _emscripten_glDepthMask, + /** @export */ + emscripten_glDepthRangef: _emscripten_glDepthRangef, + /** @export */ + emscripten_glDetachShader: _emscripten_glDetachShader, + /** @export */ + emscripten_glDisable: _emscripten_glDisable, + /** @export */ + emscripten_glDisableVertexAttribArray: _emscripten_glDisableVertexAttribArray, + /** @export */ + emscripten_glDrawArrays: _emscripten_glDrawArrays, + /** @export */ + emscripten_glDrawArraysInstancedANGLE: _emscripten_glDrawArraysInstancedANGLE, + /** @export */ + emscripten_glDrawBuffersWEBGL: _emscripten_glDrawBuffersWEBGL, + /** @export */ + emscripten_glDrawElements: _emscripten_glDrawElements, + /** @export */ + emscripten_glDrawElementsInstancedANGLE: _emscripten_glDrawElementsInstancedANGLE, + /** @export */ + emscripten_glEnable: _emscripten_glEnable, + /** @export */ + emscripten_glEnableVertexAttribArray: _emscripten_glEnableVertexAttribArray, + /** @export */ + emscripten_glEndQueryEXT: _emscripten_glEndQueryEXT, + /** @export */ + emscripten_glFinish: _emscripten_glFinish, + /** @export */ + emscripten_glFlush: _emscripten_glFlush, + /** @export */ + emscripten_glFramebufferRenderbuffer: _emscripten_glFramebufferRenderbuffer, + /** @export */ + emscripten_glFramebufferTexture2D: _emscripten_glFramebufferTexture2D, + /** @export */ + emscripten_glFrontFace: _emscripten_glFrontFace, + /** @export */ + emscripten_glGenBuffers: _emscripten_glGenBuffers, + /** @export */ + emscripten_glGenFramebuffers: _emscripten_glGenFramebuffers, + /** @export */ + emscripten_glGenQueriesEXT: _emscripten_glGenQueriesEXT, + /** @export */ + emscripten_glGenRenderbuffers: _emscripten_glGenRenderbuffers, + /** @export */ + emscripten_glGenTextures: _emscripten_glGenTextures, + /** @export */ + emscripten_glGenVertexArraysOES: _emscripten_glGenVertexArraysOES, + /** @export */ + emscripten_glGenerateMipmap: _emscripten_glGenerateMipmap, + /** @export */ + emscripten_glGetActiveAttrib: _emscripten_glGetActiveAttrib, + /** @export */ + emscripten_glGetActiveUniform: _emscripten_glGetActiveUniform, + /** @export */ + emscripten_glGetAttachedShaders: _emscripten_glGetAttachedShaders, + /** @export */ + emscripten_glGetAttribLocation: _emscripten_glGetAttribLocation, + /** @export */ + emscripten_glGetBooleanv: _emscripten_glGetBooleanv, + /** @export */ + emscripten_glGetBufferParameteriv: _emscripten_glGetBufferParameteriv, + /** @export */ + emscripten_glGetError: _emscripten_glGetError, + /** @export */ + emscripten_glGetFloatv: _emscripten_glGetFloatv, + /** @export */ + emscripten_glGetFramebufferAttachmentParameteriv: _emscripten_glGetFramebufferAttachmentParameteriv, + /** @export */ + emscripten_glGetIntegerv: _emscripten_glGetIntegerv, + /** @export */ + emscripten_glGetProgramInfoLog: _emscripten_glGetProgramInfoLog, + /** @export */ + emscripten_glGetProgramiv: _emscripten_glGetProgramiv, + /** @export */ + emscripten_glGetQueryObjecti64vEXT: _emscripten_glGetQueryObjecti64vEXT, + /** @export */ + emscripten_glGetQueryObjectivEXT: _emscripten_glGetQueryObjectivEXT, + /** @export */ + emscripten_glGetQueryObjectui64vEXT: _emscripten_glGetQueryObjectui64vEXT, + /** @export */ + emscripten_glGetQueryObjectuivEXT: _emscripten_glGetQueryObjectuivEXT, + /** @export */ + emscripten_glGetQueryivEXT: _emscripten_glGetQueryivEXT, + /** @export */ + emscripten_glGetRenderbufferParameteriv: _emscripten_glGetRenderbufferParameteriv, + /** @export */ + emscripten_glGetShaderInfoLog: _emscripten_glGetShaderInfoLog, + /** @export */ + emscripten_glGetShaderPrecisionFormat: _emscripten_glGetShaderPrecisionFormat, + /** @export */ + emscripten_glGetShaderSource: _emscripten_glGetShaderSource, + /** @export */ + emscripten_glGetShaderiv: _emscripten_glGetShaderiv, + /** @export */ + emscripten_glGetString: _emscripten_glGetString, + /** @export */ + emscripten_glGetTexParameterfv: _emscripten_glGetTexParameterfv, + /** @export */ + emscripten_glGetTexParameteriv: _emscripten_glGetTexParameteriv, + /** @export */ + emscripten_glGetUniformLocation: _emscripten_glGetUniformLocation, + /** @export */ + emscripten_glGetUniformfv: _emscripten_glGetUniformfv, + /** @export */ + emscripten_glGetUniformiv: _emscripten_glGetUniformiv, + /** @export */ + emscripten_glGetVertexAttribPointerv: _emscripten_glGetVertexAttribPointerv, + /** @export */ + emscripten_glGetVertexAttribfv: _emscripten_glGetVertexAttribfv, + /** @export */ + emscripten_glGetVertexAttribiv: _emscripten_glGetVertexAttribiv, + /** @export */ + emscripten_glHint: _emscripten_glHint, + /** @export */ + emscripten_glIsBuffer: _emscripten_glIsBuffer, + /** @export */ + emscripten_glIsEnabled: _emscripten_glIsEnabled, + /** @export */ + emscripten_glIsFramebuffer: _emscripten_glIsFramebuffer, + /** @export */ + emscripten_glIsProgram: _emscripten_glIsProgram, + /** @export */ + emscripten_glIsQueryEXT: _emscripten_glIsQueryEXT, + /** @export */ + emscripten_glIsRenderbuffer: _emscripten_glIsRenderbuffer, + /** @export */ + emscripten_glIsShader: _emscripten_glIsShader, + /** @export */ + emscripten_glIsTexture: _emscripten_glIsTexture, + /** @export */ + emscripten_glIsVertexArrayOES: _emscripten_glIsVertexArrayOES, + /** @export */ + emscripten_glLineWidth: _emscripten_glLineWidth, + /** @export */ + emscripten_glLinkProgram: _emscripten_glLinkProgram, + /** @export */ + emscripten_glPixelStorei: _emscripten_glPixelStorei, + /** @export */ + emscripten_glPolygonModeWEBGL: _emscripten_glPolygonModeWEBGL, + /** @export */ + emscripten_glPolygonOffset: _emscripten_glPolygonOffset, + /** @export */ + emscripten_glPolygonOffsetClampEXT: _emscripten_glPolygonOffsetClampEXT, + /** @export */ + emscripten_glQueryCounterEXT: _emscripten_glQueryCounterEXT, + /** @export */ + emscripten_glReadPixels: _emscripten_glReadPixels, + /** @export */ + emscripten_glReleaseShaderCompiler: _emscripten_glReleaseShaderCompiler, + /** @export */ + emscripten_glRenderbufferStorage: _emscripten_glRenderbufferStorage, + /** @export */ + emscripten_glSampleCoverage: _emscripten_glSampleCoverage, + /** @export */ + emscripten_glScissor: _emscripten_glScissor, + /** @export */ + emscripten_glShaderBinary: _emscripten_glShaderBinary, + /** @export */ + emscripten_glShaderSource: _emscripten_glShaderSource, + /** @export */ + emscripten_glStencilFunc: _emscripten_glStencilFunc, + /** @export */ + emscripten_glStencilFuncSeparate: _emscripten_glStencilFuncSeparate, + /** @export */ + emscripten_glStencilMask: _emscripten_glStencilMask, + /** @export */ + emscripten_glStencilMaskSeparate: _emscripten_glStencilMaskSeparate, + /** @export */ + emscripten_glStencilOp: _emscripten_glStencilOp, + /** @export */ + emscripten_glStencilOpSeparate: _emscripten_glStencilOpSeparate, + /** @export */ + emscripten_glTexImage2D: _emscripten_glTexImage2D, + /** @export */ + emscripten_glTexParameterf: _emscripten_glTexParameterf, + /** @export */ + emscripten_glTexParameterfv: _emscripten_glTexParameterfv, + /** @export */ + emscripten_glTexParameteri: _emscripten_glTexParameteri, + /** @export */ + emscripten_glTexParameteriv: _emscripten_glTexParameteriv, + /** @export */ + emscripten_glTexSubImage2D: _emscripten_glTexSubImage2D, + /** @export */ + emscripten_glUniform1f: _emscripten_glUniform1f, + /** @export */ + emscripten_glUniform1fv: _emscripten_glUniform1fv, + /** @export */ + emscripten_glUniform1i: _emscripten_glUniform1i, + /** @export */ + emscripten_glUniform1iv: _emscripten_glUniform1iv, + /** @export */ + emscripten_glUniform2f: _emscripten_glUniform2f, + /** @export */ + emscripten_glUniform2fv: _emscripten_glUniform2fv, + /** @export */ + emscripten_glUniform2i: _emscripten_glUniform2i, + /** @export */ + emscripten_glUniform2iv: _emscripten_glUniform2iv, + /** @export */ + emscripten_glUniform3f: _emscripten_glUniform3f, + /** @export */ + emscripten_glUniform3fv: _emscripten_glUniform3fv, + /** @export */ + emscripten_glUniform3i: _emscripten_glUniform3i, + /** @export */ + emscripten_glUniform3iv: _emscripten_glUniform3iv, + /** @export */ + emscripten_glUniform4f: _emscripten_glUniform4f, + /** @export */ + emscripten_glUniform4fv: _emscripten_glUniform4fv, + /** @export */ + emscripten_glUniform4i: _emscripten_glUniform4i, + /** @export */ + emscripten_glUniform4iv: _emscripten_glUniform4iv, + /** @export */ + emscripten_glUniformMatrix2fv: _emscripten_glUniformMatrix2fv, + /** @export */ + emscripten_glUniformMatrix3fv: _emscripten_glUniformMatrix3fv, + /** @export */ + emscripten_glUniformMatrix4fv: _emscripten_glUniformMatrix4fv, + /** @export */ + emscripten_glUseProgram: _emscripten_glUseProgram, + /** @export */ + emscripten_glValidateProgram: _emscripten_glValidateProgram, + /** @export */ + emscripten_glVertexAttrib1f: _emscripten_glVertexAttrib1f, + /** @export */ + emscripten_glVertexAttrib1fv: _emscripten_glVertexAttrib1fv, + /** @export */ + emscripten_glVertexAttrib2f: _emscripten_glVertexAttrib2f, + /** @export */ + emscripten_glVertexAttrib2fv: _emscripten_glVertexAttrib2fv, + /** @export */ + emscripten_glVertexAttrib3f: _emscripten_glVertexAttrib3f, + /** @export */ + emscripten_glVertexAttrib3fv: _emscripten_glVertexAttrib3fv, + /** @export */ + emscripten_glVertexAttrib4f: _emscripten_glVertexAttrib4f, + /** @export */ + emscripten_glVertexAttrib4fv: _emscripten_glVertexAttrib4fv, + /** @export */ + emscripten_glVertexAttribDivisorANGLE: _emscripten_glVertexAttribDivisorANGLE, + /** @export */ + emscripten_glVertexAttribPointer: _emscripten_glVertexAttribPointer, + /** @export */ + emscripten_glViewport: _emscripten_glViewport, + /** @export */ + emscripten_resize_heap: _emscripten_resize_heap, + /** @export */ + emscripten_sample_gamepad_data: _emscripten_sample_gamepad_data, + /** @export */ + emscripten_set_blur_callback_on_thread: _emscripten_set_blur_callback_on_thread, + /** @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_focus_callback_on_thread: _emscripten_set_focus_callback_on_thread, + /** @export */ + emscripten_set_fullscreenchange_callback_on_thread: _emscripten_set_fullscreenchange_callback_on_thread, + /** @export */ + emscripten_set_gamepadconnected_callback_on_thread: _emscripten_set_gamepadconnected_callback_on_thread, + /** @export */ + emscripten_set_gamepaddisconnected_callback_on_thread: _emscripten_set_gamepaddisconnected_callback_on_thread, + /** @export */ + emscripten_set_main_loop: _emscripten_set_main_loop, + /** @export */ + emscripten_set_mousemove_callback_on_thread: _emscripten_set_mousemove_callback_on_thread, + /** @export */ + emscripten_set_pointerlockchange_callback_on_thread: _emscripten_set_pointerlockchange_callback_on_thread, + /** @export */ + emscripten_set_resize_callback_on_thread: _emscripten_set_resize_callback_on_thread, + /** @export */ + emscripten_set_touchcancel_callback_on_thread: _emscripten_set_touchcancel_callback_on_thread, + /** @export */ + emscripten_set_touchend_callback_on_thread: _emscripten_set_touchend_callback_on_thread, + /** @export */ + emscripten_set_touchmove_callback_on_thread: _emscripten_set_touchmove_callback_on_thread, + /** @export */ + emscripten_set_touchstart_callback_on_thread: _emscripten_set_touchstart_callback_on_thread, + /** @export */ + emscripten_set_visibilitychange_callback_on_thread: _emscripten_set_visibilitychange_callback_on_thread, + /** @export */ + emscripten_set_window_title: _emscripten_set_window_title, + /** @export */ + exit: _exit, + /** @export */ + fd_close: _fd_close, + /** @export */ + fd_read: _fd_read, + /** @export */ + fd_seek: _fd_seek, + /** @export */ + fd_write: _fd_write, + /** @export */ + glActiveTexture: _glActiveTexture, + /** @export */ + glAttachShader: _glAttachShader, + /** @export */ + glBindAttribLocation: _glBindAttribLocation, + /** @export */ + glBindBuffer: _glBindBuffer, + /** @export */ + glBindTexture: _glBindTexture, + /** @export */ + glBlendFunc: _glBlendFunc, + /** @export */ + glBufferData: _glBufferData, + /** @export */ + glBufferSubData: _glBufferSubData, + /** @export */ + glClear: _glClear, + /** @export */ + glClearColor: _glClearColor, + /** @export */ + glClearDepthf: _glClearDepthf, + /** @export */ + glCompileShader: _glCompileShader, + /** @export */ + glCompressedTexImage2D: _glCompressedTexImage2D, + /** @export */ + glCreateProgram: _glCreateProgram, + /** @export */ + glCreateShader: _glCreateShader, + /** @export */ + glCullFace: _glCullFace, + /** @export */ + glDeleteProgram: _glDeleteProgram, + /** @export */ + glDeleteShader: _glDeleteShader, + /** @export */ + glDepthFunc: _glDepthFunc, + /** @export */ + glDisable: _glDisable, + /** @export */ + glDrawArrays: _glDrawArrays, + /** @export */ + glDrawElements: _glDrawElements, + /** @export */ + glEnable: _glEnable, + /** @export */ + glEnableVertexAttribArray: _glEnableVertexAttribArray, + /** @export */ + glFrontFace: _glFrontFace, + /** @export */ + glGenBuffers: _glGenBuffers, + /** @export */ + glGenTextures: _glGenTextures, + /** @export */ + glGetAttribLocation: _glGetAttribLocation, + /** @export */ + glGetFloatv: _glGetFloatv, + /** @export */ + glGetProgramInfoLog: _glGetProgramInfoLog, + /** @export */ + glGetProgramiv: _glGetProgramiv, + /** @export */ + glGetShaderInfoLog: _glGetShaderInfoLog, + /** @export */ + glGetShaderiv: _glGetShaderiv, + /** @export */ + glGetString: _glGetString, + /** @export */ + glGetUniformLocation: _glGetUniformLocation, + /** @export */ + glLinkProgram: _glLinkProgram, + /** @export */ + glPixelStorei: _glPixelStorei, + /** @export */ + glReadPixels: _glReadPixels, + /** @export */ + glShaderSource: _glShaderSource, + /** @export */ + glTexImage2D: _glTexImage2D, + /** @export */ + glTexParameteri: _glTexParameteri, + /** @export */ + glUniform1i: _glUniform1i, + /** @export */ + glUniform4f: _glUniform4f, + /** @export */ + glUniformMatrix4fv: _glUniformMatrix4fv, + /** @export */ + glUseProgram: _glUseProgram, + /** @export */ + glVertexAttribPointer: _glVertexAttribPointer, + /** @export */ + glViewport: _glViewport, + /** @export */ + glfwCreateWindow: _glfwCreateWindow, + /** @export */ + glfwDefaultWindowHints: _glfwDefaultWindowHints, + /** @export */ + glfwGetPrimaryMonitor: _glfwGetPrimaryMonitor, + /** @export */ + glfwGetTime: _glfwGetTime, + /** @export */ + glfwGetVideoModes: _glfwGetVideoModes, + /** @export */ + glfwInit: _glfwInit, + /** @export */ + glfwMakeContextCurrent: _glfwMakeContextCurrent, + /** @export */ + glfwSetCharCallback: _glfwSetCharCallback, + /** @export */ + glfwSetCursorEnterCallback: _glfwSetCursorEnterCallback, + /** @export */ + glfwSetCursorPosCallback: _glfwSetCursorPosCallback, + /** @export */ + glfwSetDropCallback: _glfwSetDropCallback, + /** @export */ + glfwSetErrorCallback: _glfwSetErrorCallback, + /** @export */ + glfwSetKeyCallback: _glfwSetKeyCallback, + /** @export */ + glfwSetMouseButtonCallback: _glfwSetMouseButtonCallback, + /** @export */ + glfwSetScrollCallback: _glfwSetScrollCallback, + /** @export */ + glfwSetWindowContentScaleCallback: _glfwSetWindowContentScaleCallback, + /** @export */ + glfwSetWindowFocusCallback: _glfwSetWindowFocusCallback, + /** @export */ + glfwSetWindowIconifyCallback: _glfwSetWindowIconifyCallback, + /** @export */ + glfwSetWindowShouldClose: _glfwSetWindowShouldClose, + /** @export */ + glfwSetWindowSize: _glfwSetWindowSize, + /** @export */ + glfwSetWindowSizeCallback: _glfwSetWindowSizeCallback, + /** @export */ + glfwSwapBuffers: _glfwSwapBuffers, + /** @export */ + glfwTerminate: _glfwTerminate, + /** @export */ + glfwWindowHint: _glfwWindowHint +}; + + +// include: postamble.js +// === Auto-generated postamble setup entry stuff === + +var calledRun; + +function callMain() { + assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])'); + assert(typeof onPreRuns === 'undefined' || onPreRuns.length == 0, 'cannot call main when preRun functions remain to be called'); + + var entryFunction = _main; + + var argc = 0; + var argv = 0; + + try { + + var ret = entryFunction(argc, argv); + + // if we're not running an evented main loop, it's time to exit + exitJS(ret, /* implicit = */ true); + return ret; + } catch (e) { + return handleException(e); + } +} + +function stackCheckInit() { + // This is normally called automatically during __wasm_call_ctors but need to + // get these values before even running any of the ctors so we call it redundantly + // here. + _emscripten_stack_init(); + // TODO(sbc): Move writeStackCookie to native to to avoid this. + writeStackCookie(); +} + +function run() { + + if (runDependencies > 0) { + dependenciesFulfilled = run; + return; + } + + stackCheckInit(); + + preRun(); + + // a preRun added a dependency, run will be called later + if (runDependencies > 0) { + dependenciesFulfilled = run; + return; + } + + function doRun() { + // run may have just been called through dependencies being fulfilled just in this very frame, + // or while the async setStatus time below was happening + assert(!calledRun); + calledRun = true; + Module['calledRun'] = true; + + if (ABORT) return; + + initRuntime(); + + preMain(); + + Module['onRuntimeInitialized']?.(); + consumedModuleProp('onRuntimeInitialized'); + + var noInitialRun = Module['noInitialRun'] || false; + if (!noInitialRun) callMain(); + + postRun(); + } + + if (Module['setStatus']) { + Module['setStatus']('Running...'); + setTimeout(() => { + setTimeout(() => Module['setStatus'](''), 1); + doRun(); + }, 1); + } else + { + doRun(); + } + checkStackCookie(); +} + +function checkUnflushedContent() { + // Compiler settings do not allow exiting the runtime, so flushing + // the streams is not possible. but in ASSERTIONS mode we check + // if there was something to flush, and if so tell the user they + // should request that the runtime be exitable. + // Normally we would not even include flush() at all, but in ASSERTIONS + // builds we do so just for this check, and here we see if there is any + // content to flush, that is, we check if there would have been + // something a non-ASSERTIONS build would have not seen. + // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0 + // mode (which has its own special function for this; otherwise, all + // the code is inside libc) + var oldOut = out; + var oldErr = err; + var has = false; + out = err = (x) => { + has = true; + } + try { // it doesn't matter if it fails + _fflush(0); + // also flush in the JS FS layer + for (var name of ['stdout', 'stderr']) { + var info = FS.analyzePath('/dev/' + name); + if (!info) return; + var stream = info.object; + var rdev = stream.rdev; + var tty = TTY.ttys[rdev]; + if (tty?.output?.length) { + has = true; + } + } + } 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.'); + } +} + +var wasmExports; + +// With async instantation wasmExports is assigned asynchronously when the +// instance is received. +createWasm(); + +run(); + +// end include: postamble.js + diff --git a/projects/percolation/index.wasm b/projects/percolation/index.wasm new file mode 100755 index 0000000..7c598ff Binary files /dev/null and b/projects/percolation/index.wasm differ diff --git a/projects/percolation/script.js b/projects/percolation/script.js new file mode 100644 index 0000000..6780046 --- /dev/null +++ b/projects/percolation/script.js @@ -0,0 +1,78 @@ +const statusElement = document.getElementById('status'); +const progressElement = document.getElementById('progress'); +const canvasElement = document.getElementById('canvas'); +const outputElement = document.getElementById('output'); +const fullscreenButton = document.getElementById('fullscreenButton'); + +outputElement.value = ''; + +canvasElement.addEventListener('webglcontextlost', (event) => { + event.preventDefault(); + setStatus('WebGL context lost. Reload the page to restart the simulation.'); +}, false); + +function setStatus(text) { + if (!setStatus.last) { + setStatus.last = { time: Date.now(), text: '' }; + } + + if (text === setStatus.last.text) { + return; + } + + const match = text && text.match(/([^(]+)\((\d+(?:\.\d+)?)\/(\d+)\)/); + const now = Date.now(); + + if (match && now - setStatus.last.time < 30) { + return; + } + + setStatus.last.time = now; + setStatus.last.text = text; + + if (match) { + statusElement.textContent = match[1].trim(); + progressElement.value = Number.parseInt(match[2], 10) * 100; + progressElement.max = Number.parseInt(match[3], 10) * 100; + progressElement.hidden = false; + } else { + statusElement.textContent = text || ''; + progressElement.hidden = !text; + if (!text) { + progressElement.removeAttribute('value'); + } + } +} + +var Module = { + canvas: canvasElement, + print: (...args) => { + console.log(...args); + outputElement.value += `${args.join(' ')}\n`; + outputElement.scrollTop = outputElement.scrollHeight; + }, + printErr: (...args) => { + console.error(...args); + outputElement.value += `[err] ${args.join(' ')}\n`; + outputElement.scrollTop = outputElement.scrollHeight; + }, + setStatus, + totalDependencies: 0, + monitorRunDependencies(left) { + this.totalDependencies = Math.max(this.totalDependencies, left); + setStatus(left ? `Preparing... (${this.totalDependencies - left}/${this.totalDependencies})` : 'Running...'); + if (!left) { + setTimeout(() => setStatus(''), 250); + } + } +}; + +fullscreenButton.addEventListener('click', () => { + if (typeof Module.requestFullscreen === 'function') { + Module.requestFullscreen(false, false); + } +}); + +globalThis.onerror = () => { + setStatus('Exception thrown, see JavaScript console'); +}; \ No newline at end of file diff --git a/projects/percolation/style.css b/projects/percolation/style.css new file mode 100644 index 0000000..867fafa --- /dev/null +++ b/projects/percolation/style.css @@ -0,0 +1,197 @@ +* { + margin: 0; + padding: 0; + box-sizing: border-box; +} + +body { + background: white; + color: black; + font-family: Arial, sans-serif; + font-size: 16px; + line-height: 1.6; + padding: 20px; +} + +.container { + max-width: 900px; + margin: 0 auto; +} + +header { + text-align: center; + margin-bottom: 30px; + border-bottom: 1px solid #ccc; + padding-bottom: 20px; +} + +h1 { + font-size: 2.5rem; + margin-bottom: 10px; +} + +h2 { + font-size: 1.8rem; + margin: 20px 0 15px; +} + +h3 { + font-size: 1.3rem; + margin: 15px 0; +} + +p { + margin-bottom: 15px; + color: #333; +} + +.subtitle { + color: #666; +} + +.back-button { + display: inline-block; + margin-bottom: 20px; + padding: 10px 15px; + background: #f0f0f0; + color: black; + text-decoration: none; + border: 1px solid #ccc; + border-radius: 4px; +} + +.back-button:hover, +.action-button:hover { + background: #e0e0e0; +} + +.info-box { + background: #f9f9f9; + border-left: 4px solid #333; + padding: 15px; + margin: 20px 0; +} + +.canvas-container { + background: #f9f9f9; + border: 1px solid #ddd; + border-radius: 4px; + padding: 20px; + margin: 30px 0; +} + +.canvas-toolbar { + display: flex; + justify-content: space-between; + align-items: center; + gap: 12px; + margin-bottom: 15px; + flex-wrap: wrap; +} + +.canvas-toolbar p { + margin: 0; + color: #666; + font-size: 0.95rem; +} + +.action-button { + padding: 8px 12px; + background: #f0f0f0; + color: black; + border: 1px solid #ccc; + border-radius: 4px; + cursor: pointer; + font: inherit; +} + +.canvas-shell { + display: flex; + justify-content: center; + align-items: center; + min-height: 500px; + overflow: auto; + background: white; + border: 1px solid #ddd; +} + +#canvas { + display: block; + margin: 0 auto; + max-width: 100%; + height: auto; + background: black; + outline: none; +} + +.status { + margin-top: 15px; + min-height: 24px; + color: #666; +} + +progress { + width: 100%; + height: 16px; + margin-top: 10px; +} + +progress[hidden] { + display: none; +} + +details { + margin-top: 15px; +} + +.visually-hidden { + position: absolute; + width: 1px; + height: 1px; + padding: 0; + margin: -1px; + overflow: hidden; + clip: rect(0, 0, 0, 0); + white-space: nowrap; + border: 0; +} + +textarea { + width: 100%; + min-height: 120px; + margin-top: 10px; + padding: 10px; + border: 1px solid #ddd; + font-family: "Courier New", monospace; + font-size: 0.9rem; + resize: vertical; + background: white; + color: black; +} + +footer { + text-align: center; + margin-top: 40px; + padding-top: 20px; + border-top: 1px solid #ccc; + font-size: 0.85rem; + color: #666; +} + +@media (max-width: 768px) { + body { + padding: 16px; + } + + h1 { + font-size: 2rem; + } + + .canvas-container { + padding: 15px; + } + + .canvas-shell { + min-height: 360px; + } +}