raylib HTML5 GAME

From 72aedfcbed088c29b42914088180fa6d80cda7b7 Mon Sep 17 00:00:00 2001 From: raysan5 Date: Fri, 26 Apr 2019 19:52:05 +0200 Subject: Temp content --- games/jurista.data | Bin 0 -> 4523473 bytes games/jurista.html | 259 + games/jurista.js | 13960 +++++++++++++++++++++++++++++++++++++++++++++++++++ games/jurista.wasm | Bin 0 -> 391840 bytes 4 files changed, 14219 insertions(+) create mode 100644 games/jurista.data create mode 100644 games/jurista.html create mode 100644 games/jurista.js create mode 100644 games/jurista.wasm diff --git a/games/jurista.data b/games/jurista.data new file mode 100644 index 0000000..a76afa4 Binary files /dev/null and b/games/jurista.data differ diff --git a/games/jurista.html b/games/jurista.html new file mode 100644 index 0000000..75e554f --- /dev/null +++ b/games/jurista.html @@ -0,0 +1,259 @@ + + + + + + + raylib HTML5 GAME + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

+ + +

Downloading...

+ + + + + +

+ +

+ + + + + + + + + + diff --git a/games/jurista.js b/games/jurista.js new file mode 100644 index 0000000..b67fb9b --- /dev/null +++ b/games/jurista.js @@ -0,0 +1,13960 @@ +// Copyright 2010 The Emscripten Authors. All rights reserved. +// Emscripten is available under two separate licenses, the MIT license and the +// University of Illinois/NCSA Open Source License. Both these licenses can be +// found in the LICENSE file. + +// The Module object: Our interface to the outside world. We import +// and export values on it. There are various ways Module can be used: +// 1. Not defined. We create it here +// 2. A function parameter, function(Module) { ..generated code.. } +// 3. pre-run appended it, var Module = {}; ..generated code.. +// 4. External script tag defines var Module. +// We need to check if Module already exists (e.g. case 3 above). +// Substitution will be replaced with actual code on later stage of the build, +// this way Closure Compiler will not mangle it (e.g. case 4. above). +// Note that if you want to run closure, and also to use Module +// after the generated code, you will need to define var Module = {}; +// before the code. Then that object will be used in the code, and you +// can continue to use Module afterwards as well. +var Module = typeof Module !== 'undefined' ? Module : {}; + +// --pre-jses are emitted after the Module integration code, so that they can +// refer to Module (if they choose; they can also define Module) + +if (!Module.expectedDataFileDownloads) { + Module.expectedDataFileDownloads = 0; + Module.finishedDataFileDownloads = 0; +} +Module.expectedDataFileDownloads++; +(function() { + var loadPackage = function(metadata) { + + var PACKAGE_PATH; + if (typeof window === 'object') { + PACKAGE_PATH = window['encodeURIComponent'](window.location.pathname.toString().substring(0, window.location.pathname.toString().lastIndexOf('/')) + '/'); + } else if (typeof location !== 'undefined') { + // worker + PACKAGE_PATH = encodeURIComponent(location.pathname.toString().substring(0, location.pathname.toString().lastIndexOf('/')) + '/'); + } else { + throw 'using preloaded data can only be done on a web page or in a web worker'; + } + var PACKAGE_NAME = 'jurista.data'; + var REMOTE_PACKAGE_BASE = 'jurista.data'; + if (typeof Module['locateFilePackage'] === 'function' && !Module['locateFile']) { + Module['locateFile'] = Module['locateFilePackage']; + err('warning: you defined Module.locateFilePackage, that has been renamed to Module.locateFile (using your locateFilePackage for now)'); + } + var REMOTE_PACKAGE_NAME = Module['locateFile'] ? Module['locateFile'](REMOTE_PACKAGE_BASE, '') : REMOTE_PACKAGE_BASE; + + var REMOTE_PACKAGE_SIZE = metadata.remote_package_size; + var PACKAGE_UUID = metadata.package_uuid; + + function fetchRemotePackage(packageName, packageSize, callback, errback) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', packageName, true); + xhr.responseType = 'arraybuffer'; + xhr.onprogress = function(event) { + var url = packageName; + var size = packageSize; + if (event.total) size = event.total; + if (event.loaded) { + if (!xhr.addedTotal) { + xhr.addedTotal = true; + if (!Module.dataFileDownloads) Module.dataFileDownloads = {}; + Module.dataFileDownloads[url] = { + loaded: event.loaded, + total: size + }; + } else { + Module.dataFileDownloads[url].loaded = event.loaded; + } + var total = 0; + var loaded = 0; + var num = 0; + for (var download in Module.dataFileDownloads) { + var data = Module.dataFileDownloads[download]; + total += data.total; + loaded += data.loaded; + num++; + } + total = Math.ceil(total * Module.expectedDataFileDownloads/num); + if (Module['setStatus']) Module['setStatus']('Downloading data... (' + loaded + '/' + total + ')'); + } else if (!Module.dataFileDownloads) { + if (Module['setStatus']) Module['setStatus']('Downloading data...'); + } + }; + xhr.onerror = function(event) { + throw new Error("NetworkError for: " + packageName); + } + xhr.onload = function(event) { + if (xhr.status == 200 || xhr.status == 304 || xhr.status == 206 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0 + var packageData = xhr.response; + callback(packageData); + } else { + throw new Error(xhr.statusText + " : " + xhr.responseURL); + } + }; + xhr.send(null); + }; + + function handleError(error) { + console.error('package error:', error); + }; + + var fetchedCallback = null; + var fetched = Module['getPreloadedPackage'] ? Module['getPreloadedPackage'](REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE) : null; + + if (!fetched) fetchRemotePackage(REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE, function(data) { + if (fetchedCallback) { + fetchedCallback(data); + fetchedCallback = null; + } else { + fetched = data; + } + }, handleError); + + function runWithFS() { + + function assert(check, msg) { + if (!check) throw msg + new Error().stack; + } +Module['FS_createPath']('/', 'resources', true, true); +Module['FS_createPath']('/resources', 'audio', true, true); + + function DataRequest(start, end, audio) { + this.start = start; + this.end = end; + this.audio = audio; + } + DataRequest.prototype = { + requests: {}, + open: function(mode, name) { + this.name = name; + this.requests[name] = this; + Module['addRunDependency']('fp ' + this.name); + }, + send: function() {}, + onload: function() { + var byteArray = this.byteArray.subarray(this.start, this.end); + this.finish(byteArray); + }, + finish: function(byteArray) { + var that = this; + + Module['FS_createDataFile'](this.name, null, byteArray, true, true, true); // canOwn this data in the filesystem, it is a slide into the heap that will never change + Module['removeRunDependency']('fp ' + that.name); + + this.requests[this.name] = null; + } + }; + + var files = metadata.files; + for (var i = 0; i < files.length; ++i) { + new DataRequest(files[i].start, files[i].end, files[i].audio).open('GET', files[i].filename); + } + + + function processPackageData(arrayBuffer) { + Module.finishedDataFileDownloads++; + assert(arrayBuffer, 'Loading data file failed.'); + assert(arrayBuffer instanceof ArrayBuffer, 'bad input to processPackageData'); + var byteArray = new Uint8Array(arrayBuffer); + var curr; + + // Reuse the bytearray from the XHR as the source for file reads. + DataRequest.prototype.byteArray = byteArray; + + var files = metadata.files; + for (var i = 0; i < files.length; ++i) { + DataRequest.prototype.requests[files[i].filename].onload(); + } + Module['removeRunDependency']('datafile_jurista.data'); + + }; + Module['addRunDependency']('datafile_jurista.data'); + + if (!Module.preloadResults) Module.preloadResults = {}; + + Module.preloadResults[PACKAGE_NAME] = {fromCache: false}; + if (fetched) { + processPackageData(fetched); + fetched = null; + } else { + fetchedCallback = processPackageData; + } + + } + if (Module['calledRun']) { + runWithFS(); + } else { + if (!Module['preRun']) Module['preRun'] = []; + Module["preRun"].push(runWithFS); // FS is not initialized yet, wait for it + } + + } + loadPackage({"files": [{"start": 0, "audio": 0, "end": 109416, "filename": "/resources/answers_back.png"}, {"start": 109416, "audio": 0, "end": 1152178, "filename": "/resources/background.png"}, {"start": 1152178, "audio": 0, "end": 1189423, "filename": "/resources/final_prize.png"}, {"start": 1189423, "audio": 0, "end": 1217311, "filename": "/resources/helper_fifty.png"}, {"start": 1217311, "audio": 0, "end": 1244672, "filename": "/resources/helper_people.png"}, {"start": 1244672, "audio": 0, "end": 1272514, "filename": "/resources/helper_phone.png"}, {"start": 1272514, "audio": 0, "end": 1294588, "filename": "/resources/keepcalm.fnt"}, {"start": 1294588, "audio": 0, "end": 1387312, "filename": "/resources/keepcalm.png"}, {"start": 1387312, "audio": 0, "end": 1387549, "filename": "/resources/qbar.png"}, {"start": 1387549, "audio": 0, "end": 1417721, "filename": "/resources/questions_back.png"}, {"start": 1417721, "audio": 0, "end": 1417960, "filename": "/resources/sbar.png"}, {"start": 1417960, "audio": 0, "end": 1422307, "filename": "/resources/slider_back.png"}, {"start": 1422307, "audio": 0, "end": 1422781, "filename": "/resources/slider_bar.png"}, {"start": 1422781, "audio": 0, "end": 1518528, "filename": "/resources/spinning_coin.png"}, {"start": 1518528, "audio": 0, "end": 1682737, "filename": "/resources/title_back.png"}, {"start": 1682737, "audio": 0, "end": 1703636, "filename": "/resources/title_menu_back.png"}, {"start": 1703636, "audio": 0, "end": 1783943, "filename": "/resources/title_pasta.png"}, {"start": 1783943, "audio": 0, "end": 1786299, "filename": "/resources/videogames.rqm"}, {"start": 1786299, "audio": 1, "end": 1900275, "filename": "/resources/audio/checking.mp3"}, {"start": 1900275, "audio": 1, "end": 1958662, "filename": "/resources/audio/fail.mp3"}, {"start": 1958662, "audio": 1, "end": 3501087, "filename": "/resources/audio/game.mp3"}, {"start": 3501087, "audio": 1, "end": 3588313, "filename": "/resources/audio/interludio.mp3"}, {"start": 3588313, "audio": 1, "end": 4276221, "filename": "/resources/audio/main.mp3"}, {"start": 4276221, "audio": 1, "end": 4481386, "filename": "/resources/audio/perfect.mp3"}, {"start": 4481386, "audio": 1, "end": 4523473, "filename": "/resources/audio/success.mp3"}], "remote_package_size": 4523473, "package_uuid": "40fcc8b9-5199-40a0-b856-52314e8fb8eb"}); + +})(); + + + +// Sometimes an existing Module object exists with properties +// meant to overwrite the default module functionality. Here +// we collect those properties and reapply _after_ we configure +// the current environment's defaults to avoid having to be so +// defensive during initialization. +var moduleOverrides = {}; +var key; +for (key in Module) { + if (Module.hasOwnProperty(key)) { + moduleOverrides[key] = Module[key]; + } +} + +Module['arguments'] = []; +Module['thisProgram'] = './this.program'; +Module['quit'] = function(status, toThrow) { + throw toThrow; +}; +Module['preRun'] = []; +Module['postRun'] = []; + +// Determine the runtime environment we are in. You can customize this by +// setting the ENVIRONMENT setting at compile time (see settings.js). + +var ENVIRONMENT_IS_WEB = false; +var ENVIRONMENT_IS_WORKER = false; +var ENVIRONMENT_IS_NODE = false; +var ENVIRONMENT_IS_SHELL = false; +ENVIRONMENT_IS_WEB = typeof window === 'object'; +ENVIRONMENT_IS_WORKER = typeof importScripts === 'function'; +ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function' && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER; +ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; + + +// Three configurations we can be running in: +// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false) +// 2) We could be the application main() thread proxied to worker. (with Emscripten -s PROXY_TO_WORKER=1) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false) +// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true) + +// `/` should be present at the end if `scriptDirectory` is not empty +var scriptDirectory = ''; +function locateFile(path) { + if (Module['locateFile']) { + return Module['locateFile'](path, scriptDirectory); + } else { + return scriptDirectory + path; + } +} + +if (ENVIRONMENT_IS_NODE) { + scriptDirectory = __dirname + '/'; + + // Expose functionality in the same simple way that the shells work + // Note that we pollute the global namespace here, otherwise we break in node + var nodeFS; + var nodePath; + + Module['read'] = function shell_read(filename, binary) { + var ret; + if (!nodeFS) nodeFS = require('fs'); + if (!nodePath) nodePath = require('path'); + filename = nodePath['normalize'](filename); + ret = nodeFS['readFileSync'](filename); + return binary ? ret : ret.toString(); + }; + + Module['readBinary'] = function readBinary(filename) { + var ret = Module['read'](filename, true); + if (!ret.buffer) { + ret = new Uint8Array(ret); + } + assert(ret.buffer); + return ret; + }; + + if (process['argv'].length > 1) { + Module['thisProgram'] = process['argv'][1].replace(/\\/g, '/'); + } + + Module['arguments'] = process['argv'].slice(2); + + if (typeof module !== 'undefined') { + module['exports'] = Module; + } + + process['on']('uncaughtException', function(ex) { + // suppress ExitStatus exceptions from showing an error + if (!(ex instanceof ExitStatus)) { + throw ex; + } + }); + // Currently node will swallow unhandled rejections, but this behavior is + // deprecated, and in the future it will exit with error status. + process['on']('unhandledRejection', abort); + + Module['quit'] = function(status) { + process['exit'](status); + }; + + Module['inspect'] = function () { return '[Emscripten Module object]'; }; +} else +if (ENVIRONMENT_IS_SHELL) { + + + if (typeof read != 'undefined') { + Module['read'] = function shell_read(f) { + return read(f); + }; + } + + Module['readBinary'] = function readBinary(f) { + var data; + if (typeof readbuffer === 'function') { + return new Uint8Array(readbuffer(f)); + } + data = read(f, 'binary'); + assert(typeof data === 'object'); + return data; + }; + + if (typeof scriptArgs != 'undefined') { + Module['arguments'] = scriptArgs; + } else if (typeof arguments != 'undefined') { + Module['arguments'] = arguments; + } + + if (typeof quit === 'function') { + Module['quit'] = function(status) { + quit(status); + } + } +} else +if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) { + if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled + scriptDirectory = self.location.href; + } else if (document.currentScript) { // web + scriptDirectory = document.currentScript.src; + } + // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them. + // otherwise, slice off the final part of the url to find the script directory. + // if scriptDirectory does not contain a slash, lastIndexOf will return -1, + // and scriptDirectory will correctly be replaced with an empty string. + if (scriptDirectory.indexOf('blob:') !== 0) { + scriptDirectory = scriptDirectory.substr(0, scriptDirectory.lastIndexOf('/')+1); + } else { + scriptDirectory = ''; + } + + + Module['read'] = function shell_read(url) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.send(null); + return xhr.responseText; + }; + + if (ENVIRONMENT_IS_WORKER) { + Module['readBinary'] = function readBinary(url) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.responseType = 'arraybuffer'; + xhr.send(null); + return new Uint8Array(xhr.response); + }; + } + + Module['readAsync'] = function readAsync(url, onload, onerror) { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, true); + xhr.responseType = 'arraybuffer'; + xhr.onload = function xhr_onload() { + if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0 + onload(xhr.response); + return; + } + onerror(); + }; + xhr.onerror = onerror; + xhr.send(null); + }; + + Module['setWindowTitle'] = function(title) { document.title = title }; +} else +{ +} + +// Set up the out() and err() hooks, which are how we can print to stdout or +// stderr, respectively. +// If the user provided Module.print or printErr, use that. Otherwise, +// console.log is checked first, as 'print' on the web will open a print dialogue +// printErr is preferable to console.warn (works better in shells) +// bind(console) is necessary to fix IE/Edge closed dev tools panel behavior. +var out = Module['print'] || (typeof console !== 'undefined' ? console.log.bind(console) : (typeof print !== 'undefined' ? print : null)); +var err = Module['printErr'] || (typeof printErr !== 'undefined' ? printErr : ((typeof console !== 'undefined' && console.warn.bind(console)) || out)); + +// Merge back in the overrides +for (key in moduleOverrides) { + if (moduleOverrides.hasOwnProperty(key)) { + Module[key] = moduleOverrides[key]; + } +} +// Free the object hierarchy contained in the overrides, this lets the GC +// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array. +moduleOverrides = undefined; + +// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message + + + +// Copyright 2017 The Emscripten Authors. All rights reserved. +// Emscripten is available under two separate licenses, the MIT license and the +// University of Illinois/NCSA Open Source License. Both these licenses can be +// found in the LICENSE file. + +// {{PREAMBLE_ADDITIONS}} + +var STACK_ALIGN = 16; + + +function staticAlloc(size) { + var ret = STATICTOP; + STATICTOP = (STATICTOP + size + 15) & -16; + return ret; +} + +function dynamicAlloc(size) { + var ret = HEAP32[DYNAMICTOP_PTR>>2]; + var end = (ret + size + 15) & -16; + HEAP32[DYNAMICTOP_PTR>>2] = end; + if (end >= TOTAL_MEMORY) { + var success = enlargeMemory(); + if (!success) { + HEAP32[DYNAMICTOP_PTR>>2] = ret; + return 0; + } + } + return ret; +} + +function alignMemory(size, factor) { + if (!factor) factor = STACK_ALIGN; // stack alignment (16-byte) by default + var ret = size = Math.ceil(size / factor) * factor; + return ret; +} + +function getNativeTypeSize(type) { + switch (type) { + case 'i1': case 'i8': return 1; + case 'i16': return 2; + case 'i32': return 4; + case 'i64': return 8; + case 'float': return 4; + case 'double': return 8; + default: { + if (type[type.length-1] === '*') { + return 4; // A pointer + } else if (type[0] === 'i') { + var bits = parseInt(type.substr(1)); + assert(bits % 8 === 0); + return bits / 8; + } else { + return 0; + } + } + } +} + +function warnOnce(text) { + if (!warnOnce.shown) warnOnce.shown = {}; + if (!warnOnce.shown[text]) { + warnOnce.shown[text] = 1; + err(text); + } +} + +var asm2wasmImports = { // special asm2wasm imports + "f64-rem": function(x, y) { + return x % y; + }, + "debugger": function() { + debugger; + } +}; + + + +var jsCallStartIndex = 1; +var functionPointers = new Array(0); + +// 'sig' parameter is only used on LLVM wasm backend +function addFunction(func, sig) { + var base = 0; + for (var i = base; i < base + 0; i++) { + if (!functionPointers[i]) { + functionPointers[i] = func; + return jsCallStartIndex + i; + } + } + throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.'; +} + +function removeFunction(index) { + functionPointers[index-jsCallStartIndex] = null; +} + +var funcWrappers = {}; + +function getFuncWrapper(func, sig) { + if (!func) return; // on null pointer, return undefined + assert(sig); + if (!funcWrappers[sig]) { + funcWrappers[sig] = {}; + } + var sigCache = funcWrappers[sig]; + if (!sigCache[func]) { + // optimize away arguments usage in common cases + if (sig.length === 1) { + sigCache[func] = function dynCall_wrapper() { + return dynCall(sig, func); + }; + } else if (sig.length === 2) { + sigCache[func] = function dynCall_wrapper(arg) { + return dynCall(sig, func, [arg]); + }; + } else { + // general case + sigCache[func] = function dynCall_wrapper() { + return dynCall(sig, func, Array.prototype.slice.call(arguments)); + }; + } + } + return sigCache[func]; +} + + +function makeBigInt(low, high, unsigned) { + return unsigned ? ((+((low>>>0)))+((+((high>>>0)))*4294967296.0)) : ((+((low>>>0)))+((+((high|0)))*4294967296.0)); +} + +function dynCall(sig, ptr, args) { + if (args && args.length) { + return Module['dynCall_' + sig].apply(null, [ptr].concat(args)); + } else { + return Module['dynCall_' + sig].call(null, ptr); + } +} + +var tempRet0 = 0; + +var setTempRet0 = function(value) { + tempRet0 = value; +} + +var getTempRet0 = function() { + return tempRet0; +} + + +var Runtime = { + // FIXME backwards compatibility layer for ports. Support some Runtime.* + // for now, fix it there, then remove it from here. That way we + // can minimize any period of breakage. + dynCall: dynCall, // for SDL2 port +}; + +// The address globals begin at. Very low in memory, for code size and optimization opportunities. +// Above 0 is static memory, starting with globals. +// Then the stack. +// Then 'dynamic' memory for sbrk. +var GLOBAL_BASE = 1024; + + +// === 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 + + + +//======================================== +// Runtime essentials +//======================================== + +// whether we are quitting the application. no code should run after this. +// set in exit() and abort() +var ABORT = false; + +// set by exit() and abort(). Passed to 'onExit' handler. +// NOTE: This is also used as the process return code code in shell environments +// but only when noExitRuntime is false. +var EXITSTATUS = 0; + +/** @type {function(*, string=)} */ +function assert(condition, text) { + if (!condition) { + abort('Assertion failed: ' + text); + } +} + +var globalScope = this; + +// Returns the C function with a specified identifier (for C++, you need to do manual name mangling) +function getCFunc(ident) { + var func = Module['_' + ident]; // closure exported function + assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported'); + return func; +} + +var JSfuncs = { + // Helpers for cwrap -- it can't refer to Runtime directly because it might + // be renamed by closure, instead it calls JSfuncs['stackSave'].body to find + // out what the minified function name is. + 'stackSave': function() { + stackSave() + }, + 'stackRestore': function() { + stackRestore() + }, + // type conversion from js to c + 'arrayToC' : function(arr) { + var ret = stackAlloc(arr.length); + writeArrayToMemory(arr, ret); + return ret; + }, + 'stringToC' : function(str) { + var ret = 0; + if (str !== null && str !== undefined && str !== 0) { // null string + // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0' + var len = (str.length << 2) + 1; + ret = stackAlloc(len); + stringToUTF8(str, ret, len); + } + return ret; + } +}; + +// For fast lookup of conversion functions +var toC = { + 'string': JSfuncs['stringToC'], 'array': JSfuncs['arrayToC'] +}; + + +// C calling interface. +function ccall(ident, returnType, argTypes, args, opts) { + function convertReturnValue(ret) { + if (returnType === 'string') return Pointer_stringify(ret); + if (returnType === 'boolean') return Boolean(ret); + return ret; + } + + var func = getCFunc(ident); + var cArgs = []; + var stack = 0; + if (args) { + for (var i = 0; i < args.length; i++) { + var converter = toC[argTypes[i]]; + if (converter) { + if (stack === 0) stack = stackSave(); + cArgs[i] = converter(args[i]); + } else { + cArgs[i] = args[i]; + } + } + } + var ret = func.apply(null, cArgs); + ret = convertReturnValue(ret); + if (stack !== 0) stackRestore(stack); + return ret; +} + +function cwrap(ident, returnType, argTypes, opts) { + argTypes = argTypes || []; + // When the function takes numbers and returns a number, we can just return + // the original function + var numericArgs = argTypes.every(function(type){ return type === 'number'}); + var numericRet = returnType !== 'string'; + if (numericRet && numericArgs && !opts) { + return getCFunc(ident); + } + return function() { + return ccall(ident, returnType, argTypes, arguments, opts); + } +} + +/** @type {function(number, number, string, boolean=)} */ +function setValue(ptr, value, type, noSafe) { + type = type || 'i8'; + if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit + switch(type) { + case 'i1': HEAP8[((ptr)>>0)]=value; break; + case 'i8': HEAP8[((ptr)>>0)]=value; break; + case 'i16': HEAP16[((ptr)>>1)]=value; break; + case 'i32': HEAP32[((ptr)>>2)]=value; break; + case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break; + case 'float': HEAPF32[((ptr)>>2)]=value; break; + case 'double': HEAPF64[((ptr)>>3)]=value; break; + default: abort('invalid type for setValue: ' + type); + } +} + +/** @type {function(number, string, boolean=)} */ +function getValue(ptr, type, noSafe) { + type = type || 'i8'; + if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit + switch(type) { + case 'i1': return HEAP8[((ptr)>>0)]; + case 'i8': return HEAP8[((ptr)>>0)]; + case 'i16': return HEAP16[((ptr)>>1)]; + case 'i32': return HEAP32[((ptr)>>2)]; + case 'i64': return HEAP32[((ptr)>>2)]; + case 'float': return HEAPF32[((ptr)>>2)]; + case 'double': return HEAPF64[((ptr)>>3)]; + default: abort('invalid type for getValue: ' + type); + } + return null; +} + +var ALLOC_NORMAL = 0; // Tries to use _malloc() +var ALLOC_STACK = 1; // Lives for the duration of the current function call +var ALLOC_STATIC = 2; // Cannot be freed +var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk +var ALLOC_NONE = 4; // Do not allocate + +// allocate(): This is for internal use. You can use it yourself as well, but the interface +// is a little tricky (see docs right below). The reason is that it is optimized +// for multiple syntaxes to save space in generated code. So you should +// normally not use allocate(), and instead allocate memory using _malloc(), +// initialize it with setValue(), and so forth. +// @slab: An array of data, or a number. If a number, then the size of the block to allocate, +// in *bytes* (note that this is sometimes confusing: the next parameter does not +// affect this!) +// @types: Either an array of types, one for each byte (or 0 if no type at that position), +// or a single type which is used for the entire block. This only matters if there +// is initial data - if @slab is a number, then this does not matter at all and is +// ignored. +// @allocator: How to allocate memory, see ALLOC_* +/** @type {function((TypedArray|Array|number), string, number, number=)} */ +function allocate(slab, types, allocator, ptr) { + var zeroinit, size; + if (typeof slab === 'number') { + zeroinit = true; + size = slab; + } else { + zeroinit = false; + size = slab.length; + } + + var singleType = typeof types === 'string' ? types : null; + + var ret; + if (allocator == ALLOC_NONE) { + ret = ptr; + } else { + ret = [typeof _malloc === 'function' ? _malloc : staticAlloc, stackAlloc, staticAlloc, dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length)); + } + + if (zeroinit) { + var stop; + ptr = ret; + assert((ret & 3) == 0); + stop = ret + (size & ~3); + for (; ptr < stop; ptr += 4) { + HEAP32[((ptr)>>2)]=0; + } + stop = ret + size; + while (ptr < stop) { + HEAP8[((ptr++)>>0)]=0; + } + return ret; + } + + if (singleType === 'i8') { + if (slab.subarray || slab.slice) { + HEAPU8.set(/** @type {!Uint8Array} */ (slab), ret); + } else { + HEAPU8.set(new Uint8Array(slab), ret); + } + return ret; + } + + var i = 0, type, typeSize, previousType; + while (i < size) { + var curr = slab[i]; + + type = singleType || types[i]; + if (type === 0) { + i++; + continue; + } + + if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later + + setValue(ret+i, curr, type); + + // no need to look up size unless type changes, so cache it + if (previousType !== type) { + typeSize = getNativeTypeSize(type); + previousType = type; + } + i += typeSize; + } + + return ret; +} + +// Allocate memory during any stage of startup - static memory early on, dynamic memory later, malloc when ready +function getMemory(size) { + if (!staticSealed) return staticAlloc(size); + if (!runtimeInitialized) return dynamicAlloc(size); + return _malloc(size); +} + +/** @type {function(number, number=)} */ +function Pointer_stringify(ptr, length) { + if (length === 0 || !ptr) return ''; + // Find the length, and check for UTF while doing so + var hasUtf = 0; + var t; + var i = 0; + while (1) { + t = HEAPU8[(((ptr)+(i))>>0)]; + hasUtf |= t; + if (t == 0 && !length) break; + i++; + if (length && i == length) break; + } + if (!length) length = i; + + var ret = ''; + + if (hasUtf < 128) { + var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge string can overflow the stack + var curr; + while (length > 0) { + curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.min(length, MAX_CHUNK))); + ret = ret ? ret + curr : curr; + ptr += MAX_CHUNK; + length -= MAX_CHUNK; + } + return ret; + } + return UTF8ToString(ptr); +} + +// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns +// a copy of that string as a Javascript String object. + +function AsciiToString(ptr) { + var str = ''; + while (1) { + var ch = HEAP8[((ptr++)>>0)]; + if (!ch) return str; + str += String.fromCharCode(ch); + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP. + +function stringToAscii(str, outPtr) { + return writeAsciiToMemory(str, outPtr, false); +} + +// Given a pointer 'ptr' 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. + +var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined; +function UTF8ArrayToString(u8Array, idx) { + var endPtr = idx; + // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. + // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. + while (u8Array[endPtr]) ++endPtr; + + if (endPtr - idx > 16 && u8Array.subarray && UTF8Decoder) { + return UTF8Decoder.decode(u8Array.subarray(idx, endPtr)); + } else { + var u0, u1, u2, u3, u4, u5; + + var str = ''; + while (1) { + // 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 + u0 = u8Array[idx++]; + if (!u0) return str; + if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; } + u1 = u8Array[idx++] & 63; + if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; } + u2 = u8Array[idx++] & 63; + if ((u0 & 0xF0) == 0xE0) { + u0 = ((u0 & 15) << 12) | (u1 << 6) | u2; + } else { + u3 = u8Array[idx++] & 63; + if ((u0 & 0xF8) == 0xF0) { + u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | u3; + } else { + u4 = u8Array[idx++] & 63; + if ((u0 & 0xFC) == 0xF8) { + u0 = ((u0 & 3) << 24) | (u1 << 18) | (u2 << 12) | (u3 << 6) | u4; + } else { + u5 = u8Array[idx++] & 63; + u0 = ((u0 & 1) << 30) | (u1 << 24) | (u2 << 18) | (u3 << 12) | (u4 << 6) | u5; + } + } + } + if (u0 < 0x10000) { + str += String.fromCharCode(u0); + } else { + var ch = u0 - 0x10000; + str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); + } + } + } +} + +// 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. + +function UTF8ToString(ptr) { + return UTF8ArrayToString(HEAPU8,ptr); +} + +// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx', +// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP. +// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outU8Array: the array to copy to. Each index in this array is assumed to be one 8-byte element. +// outIdx: The starting offset in the array to begin the copying. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. +// This count should include the null terminator, +// i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else. +// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF8Array(str, outU8Array, outIdx, maxBytesToWrite) { + if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes. + return 0; + + var startIdx = outIdx; + var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator. + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629 + var u = str.charCodeAt(i); // possibly a lead surrogate + if (u >= 0xD800 && u <= 0xDFFF) { + var u1 = str.charCodeAt(++i); + u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF); + } + if (u <= 0x7F) { + if (outIdx >= endIdx) break; + outU8Array[outIdx++] = u; + } else if (u <= 0x7FF) { + if (outIdx + 1 >= endIdx) break; + outU8Array[outIdx++] = 0xC0 | (u >> 6); + outU8Array[outIdx++] = 0x80 | (u & 63); + } else if (u <= 0xFFFF) { + if (outIdx + 2 >= endIdx) break; + outU8Array[outIdx++] = 0xE0 | (u >> 12); + outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63); + outU8Array[outIdx++] = 0x80 | (u & 63); + } else if (u <= 0x1FFFFF) { + if (outIdx + 3 >= endIdx) break; + outU8Array[outIdx++] = 0xF0 | (u >> 18); + outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63); + outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63); + outU8Array[outIdx++] = 0x80 | (u & 63); + } else if (u <= 0x3FFFFFF) { + if (outIdx + 4 >= endIdx) break; + outU8Array[outIdx++] = 0xF8 | (u >> 24); + outU8Array[outIdx++] = 0x80 | ((u >> 18) & 63); + outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63); + outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63); + outU8Array[outIdx++] = 0x80 | (u & 63); + } else { + if (outIdx + 5 >= endIdx) break; + outU8Array[outIdx++] = 0xFC | (u >> 30); + outU8Array[outIdx++] = 0x80 | ((u >> 24) & 63); + outU8Array[outIdx++] = 0x80 | ((u >> 18) & 63); + outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63); + outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63); + outU8Array[outIdx++] = 0x80 | (u & 63); + } + } + // Null-terminate the pointer to the buffer. + outU8Array[outIdx] = 0; + return outIdx - startIdx; +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP. +// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF8(str, outPtr, maxBytesToWrite) { + return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite); +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF8(str) { + var len = 0; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var u = str.charCodeAt(i); // possibly a lead surrogate + if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF); + if (u <= 0x7F) { + ++len; + } else if (u <= 0x7FF) { + len += 2; + } else if (u <= 0xFFFF) { + len += 3; + } else if (u <= 0x1FFFFF) { + len += 4; + } else if (u <= 0x3FFFFFF) { + len += 5; + } else { + len += 6; + } + } + return len; +} + +// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns +// a copy of that string as a Javascript String object. + +var UTF16Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-16le') : undefined; +function UTF16ToString(ptr) { + var endPtr = ptr; + // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. + // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. + var idx = endPtr >> 1; + while (HEAP16[idx]) ++idx; + endPtr = idx << 1; + + if (endPtr - ptr > 32 && UTF16Decoder) { + return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr)); + } else { + var i = 0; + + var str = ''; + while (1) { + var codeUnit = HEAP16[(((ptr)+(i*2))>>1)]; + if (codeUnit == 0) return str; + ++i; + // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through. + str += String.fromCharCode(codeUnit); + } + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP. +// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outPtr: Byte address in Emscripten HEAP where to write the string to. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null +// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else. +// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF16(str, outPtr, maxBytesToWrite) { + // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. + if (maxBytesToWrite === undefined) { + maxBytesToWrite = 0x7FFFFFFF; + } + if (maxBytesToWrite < 2) return 0; + maxBytesToWrite -= 2; // Null terminator. + var startPtr = outPtr; + var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length; + for (var i = 0; i < numCharsToWrite; ++i) { + // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP. + var codeUnit = str.charCodeAt(i); // possibly a lead surrogate + HEAP16[((outPtr)>>1)]=codeUnit; + outPtr += 2; + } + // Null-terminate the pointer to the HEAP. + HEAP16[((outPtr)>>1)]=0; + return outPtr - startPtr; +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF16(str) { + return str.length*2; +} + +function UTF32ToString(ptr) { + var i = 0; + + var str = ''; + while (1) { + var utf32 = HEAP32[(((ptr)+(i*4))>>2)]; + if (utf32 == 0) + return str; + ++i; + // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + if (utf32 >= 0x10000) { + var ch = utf32 - 0x10000; + str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); + } else { + str += String.fromCharCode(utf32); + } + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP. +// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outPtr: Byte address in Emscripten HEAP where to write the string to. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null +// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else. +// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF32(str, outPtr, maxBytesToWrite) { + // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. + if (maxBytesToWrite === undefined) { + maxBytesToWrite = 0x7FFFFFFF; + } + if (maxBytesToWrite < 4) return 0; + var startPtr = outPtr; + var endPtr = startPtr + maxBytesToWrite - 4; + 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! We must decode the string to UTF-32 to the heap. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var codeUnit = str.charCodeAt(i); // possibly a lead surrogate + if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) { + var trailSurrogate = str.charCodeAt(++i); + codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF); + } + HEAP32[((outPtr)>>2)]=codeUnit; + outPtr += 4; + if (outPtr + 4 > endPtr) break; + } + // Null-terminate the pointer to the HEAP. + HEAP32[((outPtr)>>2)]=0; + return outPtr - startPtr; +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF32(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! We must decode the string to UTF-32 to the heap. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var codeUnit = str.charCodeAt(i); + if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate. + len += 4; + } + + return len; +} + +// Allocate heap space for a JS string, and write it there. +// It is the responsibility of the caller to free() that memory. +function allocateUTF8(str) { + var size = lengthBytesUTF8(str) + 1; + var ret = _malloc(size); + if (ret) stringToUTF8Array(str, HEAP8, ret, size); + return ret; +} + +// Allocate stack space for a JS string, and write it there. +function allocateUTF8OnStack(str) { + var size = lengthBytesUTF8(str) + 1; + var ret = stackAlloc(size); + stringToUTF8Array(str, HEAP8, ret, size); + return ret; +} + +function demangle(func) { + return func; +} + +function demangleAll(text) { + var regex = + /__Z[\w\d_]+/g; + return text.replace(regex, + function(x) { + var y = demangle(x); + return x === y ? x : (y + ' [' + x + ']'); + }); +} + +function jsStackTrace() { + var err = new Error(); + if (!err.stack) { + // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown, + // so try that as a special-case. + try { + throw new Error(0); + } catch(e) { + err = e; + } + if (!err.stack) { + return '(no stack trace available)'; + } + } + return err.stack.toString(); +} + +function stackTrace() { + var js = jsStackTrace(); + if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace'](); + return demangleAll(js); +} + +// Memory management + +var PAGE_SIZE = 16384; +var WASM_PAGE_SIZE = 65536; +var ASMJS_PAGE_SIZE = 16777216; +var MIN_TOTAL_MEMORY = 16777216; + +function alignUp(x, multiple) { + if (x % multiple > 0) { + x += multiple - (x % multiple); + } + return x; +} + +var HEAP, +/** @type {ArrayBuffer} */ + buffer, +/** @type {Int8Array} */ + HEAP8, +/** @type {Uint8Array} */ + HEAPU8, +/** @type {Int16Array} */ + HEAP16, +/** @type {Uint16Array} */ + HEAPU16, +/** @type {Int32Array} */ + HEAP32, +/** @type {Uint32Array} */ + HEAPU32, +/** @type {Float32Array} */ + HEAPF32, +/** @type {Float64Array} */ + HEAPF64; + +function updateGlobalBuffer(buf) { + Module['buffer'] = buffer = buf; +} + +function updateGlobalBufferViews() { + Module['HEAP8'] = HEAP8 = new Int8Array(buffer); + Module['HEAP16'] = HEAP16 = new Int16Array(buffer); + Module['HEAP32'] = HEAP32 = new Int32Array(buffer); + Module['HEAPU8'] = HEAPU8 = new Uint8Array(buffer); + Module['HEAPU16'] = HEAPU16 = new Uint16Array(buffer); + Module['HEAPU32'] = HEAPU32 = new Uint32Array(buffer); + Module['HEAPF32'] = HEAPF32 = new Float32Array(buffer); + Module['HEAPF64'] = HEAPF64 = new Float64Array(buffer); +} + +var STATIC_BASE, STATICTOP, staticSealed; // static area +var STACK_BASE, STACKTOP, STACK_MAX; // stack area +var DYNAMIC_BASE, DYNAMICTOP_PTR; // dynamic area handled by sbrk + + STATIC_BASE = STATICTOP = STACK_BASE = STACKTOP = STACK_MAX = DYNAMIC_BASE = DYNAMICTOP_PTR = 0; + staticSealed = false; + + + + +function abortOnCannotGrowMemory() { + abort('Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value ' + TOTAL_MEMORY + ', (2) compile with -s ALLOW_MEMORY_GROWTH=1 which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -s ABORTING_MALLOC=0 '); +} + +if (!Module['reallocBuffer']) Module['reallocBuffer'] = function(size) { + var ret; + try { + var oldHEAP8 = HEAP8; + ret = new ArrayBuffer(size); + var temp = new Int8Array(ret); + temp.set(oldHEAP8); + } catch(e) { + return false; + } + var success = _emscripten_replace_memory(ret); + if (!success) return false; + return ret; +}; + +function enlargeMemory() { + // TOTAL_MEMORY is the current size of the actual array, and DYNAMICTOP is the new top. + + + var PAGE_MULTIPLE = Module["usingWasm"] ? WASM_PAGE_SIZE : ASMJS_PAGE_SIZE; // In wasm, heap size must be a multiple of 64KB. In asm.js, they need to be multiples of 16MB. + var LIMIT = 2147483648 - PAGE_MULTIPLE; // We can do one page short of 2GB as theoretical maximum. + + if (HEAP32[DYNAMICTOP_PTR>>2] > LIMIT) { + return false; + } + + var OLD_TOTAL_MEMORY = TOTAL_MEMORY; + TOTAL_MEMORY = Math.max(TOTAL_MEMORY, MIN_TOTAL_MEMORY); // So the loop below will not be infinite, and minimum asm.js memory size is 16MB. + + while (TOTAL_MEMORY < HEAP32[DYNAMICTOP_PTR>>2]) { // Keep incrementing the heap size as long as it's less than what is requested. + if (TOTAL_MEMORY <= 536870912) { + TOTAL_MEMORY = alignUp(2 * TOTAL_MEMORY, PAGE_MULTIPLE); // Simple heuristic: double until 1GB... + } else { + // ..., but after that, add smaller increments towards 2GB, which we cannot reach + TOTAL_MEMORY = Math.min(alignUp((3 * TOTAL_MEMORY + 2147483648) / 4, PAGE_MULTIPLE), LIMIT); + } + } + + + + var replacement = Module['reallocBuffer'](TOTAL_MEMORY); + if (!replacement || replacement.byteLength != TOTAL_MEMORY) { + // restore the state to before this call, we failed + TOTAL_MEMORY = OLD_TOTAL_MEMORY; + return false; + } + + // everything worked + + updateGlobalBuffer(replacement); + updateGlobalBufferViews(); + + + + return true; +} + +var byteLength; +try { + byteLength = Function.prototype.call.bind(Object.getOwnPropertyDescriptor(ArrayBuffer.prototype, 'byteLength').get); + byteLength(new ArrayBuffer(4)); // can fail on older ie +} catch(e) { // can fail on older node/v8 + byteLength = function(buffer) { return buffer.byteLength; }; +} + +var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880; +var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 16777216; +if (TOTAL_MEMORY < TOTAL_STACK) err('TOTAL_MEMORY should be larger than TOTAL_STACK, was ' + TOTAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')'); + +// Initialize the runtime's memory + + + +// Use a provided buffer, if there is one, or else allocate a new one +if (Module['buffer']) { + buffer = Module['buffer']; +} else { + // Use a WebAssembly memory where available + if (typeof WebAssembly === 'object' && typeof WebAssembly.Memory === 'function') { + Module['wasmMemory'] = new WebAssembly.Memory({ 'initial': TOTAL_MEMORY / WASM_PAGE_SIZE }); + buffer = Module['wasmMemory'].buffer; + } else + { + buffer = new ArrayBuffer(TOTAL_MEMORY); + } + Module['buffer'] = buffer; +} +updateGlobalBufferViews(); + + +function getTotalMemory() { + return TOTAL_MEMORY; +} + +// Endianness check (note: assumes compiler arch was little-endian) + +function callRuntimeCallbacks(callbacks) { + while(callbacks.length > 0) { + var callback = callbacks.shift(); + if (typeof callback == 'function') { + callback(); + continue; + } + var func = callback.func; + if (typeof func === 'number') { + if (callback.arg === undefined) { + Module['dynCall_v'](func); + } else { + Module['dynCall_vi'](func, callback.arg); + } + } else { + func(callback.arg === undefined ? null : callback.arg); + } + } +} + +var __ATPRERUN__ = []; // functions called before the runtime is initialized +var __ATINIT__ = []; // functions called during startup +var __ATMAIN__ = []; // functions called when main() is to be run +var __ATEXIT__ = []; // functions called during shutdown +var __ATPOSTRUN__ = []; // functions called after the main() is called + +var runtimeInitialized = false; +var runtimeExited = false; + + +function preRun() { + // compatibility - merge in anything from Module['preRun'] at this time + if (Module['preRun']) { + if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; + while (Module['preRun'].length) { + addOnPreRun(Module['preRun'].shift()); + } + } + callRuntimeCallbacks(__ATPRERUN__); +} + +function ensureInitRuntime() { + if (runtimeInitialized) return; + runtimeInitialized = true; + callRuntimeCallbacks(__ATINIT__); +} + +function preMain() { + callRuntimeCallbacks(__ATMAIN__); +} + +function exitRuntime() { + callRuntimeCallbacks(__ATEXIT__); + runtimeExited = true; +} + +function postRun() { + // compatibility - merge in anything from Module['postRun'] at this time + if (Module['postRun']) { + if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; + while (Module['postRun'].length) { + addOnPostRun(Module['postRun'].shift()); + } + } + callRuntimeCallbacks(__ATPOSTRUN__); +} + +function addOnPreRun(cb) { + __ATPRERUN__.unshift(cb); +} + +function addOnInit(cb) { + __ATINIT__.unshift(cb); +} + +function addOnPreMain(cb) { + __ATMAIN__.unshift(cb); +} + +function addOnExit(cb) { + __ATEXIT__.unshift(cb); +} + +function addOnPostRun(cb) { + __ATPOSTRUN__.unshift(cb); +} + +// Deprecated: This function should not be called because it is unsafe and does not provide +// a maximum length limit of how many bytes it is allowed to write. Prefer calling the +// function stringToUTF8Array() instead, which takes in a maximum length that can be used +// to be secure from out of bounds writes. +/** @deprecated */ +function writeStringToMemory(string, buffer, dontAddNull) { + warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!'); + + var /** @type {number} */ lastChar, /** @type {number} */ end; + if (dontAddNull) { + // stringToUTF8Array always appends null. If we don't want to do that, remember the + // character that existed at the location where the null will be placed, and restore + // that after the write (below). + end = buffer + lengthBytesUTF8(string); + lastChar = HEAP8[end]; + } + stringToUTF8(string, buffer, Infinity); + if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character. +} + +function writeArrayToMemory(array, buffer) { + HEAP8.set(array, buffer); +} + +function writeAsciiToMemory(str, buffer, dontAddNull) { + for (var i = 0; i < str.length; ++i) { + HEAP8[((buffer++)>>0)]=str.charCodeAt(i); + } + // Null-terminate the pointer to the HEAP. + if (!dontAddNull) HEAP8[((buffer)>>0)]=0; +} + +function unSign(value, bits, ignore) { + if (value >= 0) { + return value; + } + return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts + : Math.pow(2, bits) + value; +} +function reSign(value, bits, ignore) { + if (value <= 0) { + return value; + } + var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32 + : Math.pow(2, bits-1); + if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that + // but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors + // TODO: In i64 mode 1, resign the two parts separately and safely + value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts + } + return value; +} + + +var Math_abs = Math.abs; +var Math_cos = Math.cos; +var Math_sin = Math.sin; +var Math_tan = Math.tan; +var Math_acos = Math.acos; +var Math_asin = Math.asin; +var Math_atan = Math.atan; +var Math_atan2 = Math.atan2; +var Math_exp = Math.exp; +var Math_log = Math.log; +var Math_sqrt = Math.sqrt; +var Math_ceil = Math.ceil; +var Math_floor = Math.floor; +var Math_pow = Math.pow; +var Math_imul = Math.imul; +var Math_fround = Math.fround; +var Math_round = Math.round; +var Math_min = Math.min; +var Math_max = Math.max; +var Math_clz32 = Math.clz32; +var Math_trunc = Math.trunc; + +// A counter of dependencies for calling run(). If we need to +// do asynchronous work before running, increment this and +// decrement it. Incrementing must happen in a place like +// Module.preRun (used by emcc to add file preloading). +// Note that you can add dependencies in preRun, even though +// it happens right before run - run will be postponed until +// the dependencies are met. +var runDependencies = 0; +var runDependencyWatcher = null; +var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled + +function getUniqueRunDependency(id) { + return id; +} + +function addRunDependency(id) { + runDependencies++; + if (Module['monitorRunDependencies']) { + Module['monitorRunDependencies'](runDependencies); + } +} + +function removeRunDependency(id) { + runDependencies--; + if (Module['monitorRunDependencies']) { + Module['monitorRunDependencies'](runDependencies); + } + if (runDependencies == 0) { + if (runDependencyWatcher !== null) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + } + if (dependenciesFulfilled) { + var callback = dependenciesFulfilled; + dependenciesFulfilled = null; + callback(); // can add another dependenciesFulfilled + } + } +} + +Module["preloadedImages"] = {}; // maps url to image data +Module["preloadedAudios"] = {}; // maps url to audio data + + + +var memoryInitializer = null; + + + + + + +// Copyright 2017 The Emscripten Authors. All rights reserved. +// Emscripten is available under two separate licenses, the MIT license and the +// University of Illinois/NCSA Open Source License. Both these licenses can be +// found in the LICENSE file. + +// Prefix of data URIs emitted by SINGLE_FILE and related options. +var dataURIPrefix = 'data:application/octet-stream;base64,'; + +// Indicates whether filename is a base64 data URI. +function isDataURI(filename) { + return String.prototype.startsWith ? + filename.startsWith(dataURIPrefix) : + filename.indexOf(dataURIPrefix) === 0; +} + + + + +function integrateWasmJS() { + // wasm.js has several methods for creating the compiled code module here: + // * 'native-wasm' : use native WebAssembly support in the browser + // * 'interpret-s-expr': load s-expression code from a .wast and interpret + // * 'interpret-binary': load binary wasm and interpret + // * 'interpret-asm2wasm': load asm.js code, translate to wasm, and interpret + // * 'asmjs': no wasm, just load the asm.js code and use that (good for testing) + // The method is set at compile time (BINARYEN_METHOD) + // The method can be a comma-separated list, in which case, we will try the + // options one by one. Some of them can fail gracefully, and then we can try + // the next. + + // inputs + + var method = 'native-wasm'; + + var wasmTextFile = 'jurista.wast'; + var wasmBinaryFile = 'jurista.wasm'; + var asmjsCodeFile = 'jurista.temp.asm.js'; + + if (!isDataURI(wasmTextFile)) { + wasmTextFile = locateFile(wasmTextFile); + } + if (!isDataURI(wasmBinaryFile)) { + wasmBinaryFile = locateFile(wasmBinaryFile); + } + if (!isDataURI(asmjsCodeFile)) { + asmjsCodeFile = locateFile(asmjsCodeFile); + } + + // utilities + + var wasmPageSize = 64*1024; + + var info = { + 'global': null, + 'env': null, + 'asm2wasm': asm2wasmImports, + 'parent': Module // Module inside wasm-js.cpp refers to wasm-js.cpp; this allows access to the outside program. + }; + + var exports = null; + + + function mergeMemory(newBuffer) { + // The wasm instance creates its memory. But static init code might have written to + // buffer already, including the mem init file, and we must copy it over in a proper merge. + // TODO: avoid this copy, by avoiding such static init writes + // TODO: in shorter term, just copy up to the last static init write + var oldBuffer = Module['buffer']; + if (newBuffer.byteLength < oldBuffer.byteLength) { + err('the new buffer in mergeMemory is smaller than the previous one. in native wasm, we should grow memory here'); + } + var oldView = new Int8Array(oldBuffer); + var newView = new Int8Array(newBuffer); + + + newView.set(oldView); + updateGlobalBuffer(newBuffer); + updateGlobalBufferViews(); + } + + function getBinary() { + try { + if (Module['wasmBinary']) { + return new Uint8Array(Module['wasmBinary']); + } + if (Module['readBinary']) { + return Module['readBinary'](wasmBinaryFile); + } else { + throw "both async and sync fetching of the wasm failed"; + } + } + catch (err) { + abort(err); + } + } + + function getBinaryPromise() { + // if we don't have the binary yet, and have the Fetch api, use that + // in some environments, like Electron's render process, Fetch api may be present, but have a different context than expected, let's only use it on the Web + if (!Module['wasmBinary'] && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) && typeof fetch === 'function') { + return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) { + if (!response['ok']) { + throw "failed to load wasm binary file at '" + wasmBinaryFile + "'"; + } + return response['arrayBuffer'](); + }).catch(function () { + return getBinary(); + }); + } + // Otherwise, getBinary should be able to get it synchronously + return new Promise(function(resolve, reject) { + resolve(getBinary()); + }); + } + + // do-method functions + + + function doNativeWasm(global, env, providedBuffer) { + if (typeof WebAssembly !== 'object') { + err('no native wasm support detected'); + return false; + } + // prepare memory import + if (!(Module['wasmMemory'] instanceof WebAssembly.Memory)) { + err('no native wasm Memory in use'); + return false; + } + env['memory'] = Module['wasmMemory']; + // Load the wasm module and create an instance of using native support in the JS engine. + info['global'] = { + 'NaN': NaN, + 'Infinity': Infinity + }; + info['global.Math'] = Math; + info['env'] = env; + // handle a generated wasm instance, receiving its exports and + // performing other necessary setup + function receiveInstance(instance, module) { + exports = instance.exports; + if (exports.memory) mergeMemory(exports.memory); + Module['asm'] = exports; + Module["usingWasm"] = true; + removeRunDependency('wasm-instantiate'); + } + addRunDependency('wasm-instantiate'); + + // 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. + if (Module['instantiateWasm']) { + try { + return Module['instantiateWasm'](info, receiveInstance); + } catch(e) { + err('Module.instantiateWasm callback failed with error: ' + e); + return false; + } + } + + function receiveInstantiatedSource(output) { + // 'output' is a WebAssemblyInstantiatedSource object which has both the module and instance. + // receiveInstance() will swap in the exports (to Module.asm) so they can be called + receiveInstance(output['instance'], output['module']); + } + function instantiateArrayBuffer(receiver) { + getBinaryPromise().then(function(binary) { + return WebAssembly.instantiate(binary, info); + }).then(receiver, function(reason) { + err('failed to asynchronously prepare wasm: ' + reason); + abort(reason); + }); + } + // Prefer streaming instantiation if available. + if (!Module['wasmBinary'] && + typeof WebAssembly.instantiateStreaming === 'function' && + !isDataURI(wasmBinaryFile) && + typeof fetch === 'function') { + WebAssembly.instantiateStreaming(fetch(wasmBinaryFile, { credentials: 'same-origin' }), info) + .then(receiveInstantiatedSource, function(reason) { + // We expect the most common failure cause to be a bad MIME type for the binary, + // in which case falling back to ArrayBuffer instantiation should work. + err('wasm streaming compile failed: ' + reason); + err('falling back to ArrayBuffer instantiation'); + instantiateArrayBuffer(receiveInstantiatedSource); + }); + } else { + instantiateArrayBuffer(receiveInstantiatedSource); + } + return {}; // no exports yet; we'll fill them in later + } + + + // We may have a preloaded value in Module.asm, save it + Module['asmPreload'] = Module['asm']; + + // Memory growth integration code + + var asmjsReallocBuffer = Module['reallocBuffer']; + + var wasmReallocBuffer = function(size) { + var PAGE_MULTIPLE = Module["usingWasm"] ? WASM_PAGE_SIZE : ASMJS_PAGE_SIZE; // In wasm, heap size must be a multiple of 64KB. In asm.js, they need to be multiples of 16MB. + size = alignUp(size, PAGE_MULTIPLE); // round up to wasm page size + var old = Module['buffer']; + var oldSize = old.byteLength; + if (Module["usingWasm"]) { + // native wasm support + try { + var result = Module['wasmMemory'].grow((size - oldSize) / wasmPageSize); // .grow() takes a delta compared to the previous size + if (result !== (-1 | 0)) { + // success in native wasm memory growth, get the buffer from the memory + return Module['buffer'] = Module['wasmMemory'].buffer; + } else { + return null; + } + } catch(e) { + return null; + } + } + }; + + Module['reallocBuffer'] = function(size) { + if (finalMethod === 'asmjs') { + return asmjsReallocBuffer(size); + } else { + return wasmReallocBuffer(size); + } + }; + + // we may try more than one; this is the final one, that worked and we are using + var finalMethod = ''; + + // Provide an "asm.js function" for the application, called to "link" the asm.js module. We instantiate + // the wasm module at that time, and it receives imports and provides exports and so forth, the app + // doesn't need to care that it is wasm or polyfilled wasm or asm.js. + + Module['asm'] = function(global, env, providedBuffer) { + // import table + if (!env['table']) { + var TABLE_SIZE = Module['wasmTableSize']; + if (TABLE_SIZE === undefined) TABLE_SIZE = 1024; // works in binaryen interpreter at least + var MAX_TABLE_SIZE = Module['wasmMaxTableSize']; + if (typeof WebAssembly === 'object' && typeof WebAssembly.Table === 'function') { + if (MAX_TABLE_SIZE !== undefined) { + env['table'] = new WebAssembly.Table({ 'initial': TABLE_SIZE, 'maximum': MAX_TABLE_SIZE, 'element': 'anyfunc' }); + } else { + env['table'] = new WebAssembly.Table({ 'initial': TABLE_SIZE, element: 'anyfunc' }); + } + } else { + env['table'] = new Array(TABLE_SIZE); // works in binaryen interpreter at least + } + Module['wasmTable'] = env['table']; + } + + if (!env['__memory_base']) { + env['__memory_base'] = Module['STATIC_BASE']; // tell the memory segments where to place themselves + } + if (!env['__table_base']) { + env['__table_base'] = 0; // table starts at 0 by default, in dynamic linking this will change + } + + // try the methods. each should return the exports if it succeeded + + var exports; + exports = doNativeWasm(global, env, providedBuffer); + + assert(exports, 'no binaryen method succeeded.'); + + + return exports; + }; + + var methodHandler = Module['asm']; // note our method handler, as we may modify Module['asm'] later +} + +integrateWasmJS(); + +// === Body === + +var ASM_CONSTS = []; + + + + + +STATIC_BASE = GLOBAL_BASE; + +STATICTOP = STATIC_BASE + 110960; +/* global initializers */ __ATINIT__.push(); + + + + + + + +var STATIC_BUMP = 110960; +Module["STATIC_BASE"] = STATIC_BASE; +Module["STATIC_BUMP"] = STATIC_BUMP; + +/* no memory initializer */ +var tempDoublePtr = STATICTOP; STATICTOP += 16; + +function copyTempFloat(ptr) { // functions, because inlining this code increases code size too much + HEAP8[tempDoublePtr] = HEAP8[ptr]; + HEAP8[tempDoublePtr+1] = HEAP8[ptr+1]; + HEAP8[tempDoublePtr+2] = HEAP8[ptr+2]; + HEAP8[tempDoublePtr+3] = HEAP8[ptr+3]; +} + +function copyTempDouble(ptr) { + HEAP8[tempDoublePtr] = HEAP8[ptr]; + HEAP8[tempDoublePtr+1] = HEAP8[ptr+1]; + HEAP8[tempDoublePtr+2] = HEAP8[ptr+2]; + HEAP8[tempDoublePtr+3] = HEAP8[ptr+3]; + HEAP8[tempDoublePtr+4] = HEAP8[ptr+4]; + HEAP8[tempDoublePtr+5] = HEAP8[ptr+5]; + HEAP8[tempDoublePtr+6] = HEAP8[ptr+6]; + HEAP8[tempDoublePtr+7] = HEAP8[ptr+7]; +} + +// {{PRE_LIBRARY}} + + + + + + + var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86}; + + var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"}; + + function ___setErrNo(value) { + if (Module['___errno_location']) HEAP32[((Module['___errno_location']())>>2)]=value; + return value; + } + + var PATH={splitPath:function (filename) { + var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; + return splitPathRe.exec(filename).slice(1); + },normalizeArray:function (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:function (path) { + var isAbsolute = path.charAt(0) === '/', + trailingSlash = path.substr(-1) === '/'; + // Normalize the path + path = PATH.normalizeArray(path.split('/').filter(function(p) { + return !!p; + }), !isAbsolute).join('/'); + if (!path && !isAbsolute) { + path = '.'; + } + if (path && trailingSlash) { + path += '/'; + } + return (isAbsolute ? '/' : '') + path; + },dirname:function (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.substr(0, dir.length - 1); + } + return root + dir; + },basename:function (path) { + // EMSCRIPTEN return '/'' for '/', not an empty string + if (path === '/') return '/'; + var lastSlash = path.lastIndexOf('/'); + if (lastSlash === -1) return path; + return path.substr(lastSlash+1); + },extname:function (path) { + return PATH.splitPath(path)[3]; + },join:function () { + var paths = Array.prototype.slice.call(arguments, 0); + return PATH.normalize(paths.join('/')); + },join2:function (l, r) { + return PATH.normalize(l + '/' + r); + },resolve:function () { + var resolvedPath = '', + resolvedAbsolute = false; + for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { + var path = (i >= 0) ? arguments[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.charAt(0) === '/'; + } + // 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(function(p) { + return !!p; + }), !resolvedAbsolute).join('/'); + return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; + },relative:function (from, to) { + from = PATH.resolve(from).substr(1); + to = PATH.resolve(to).substr(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 TTY={ttys:[],init:function () { + // https://github.com/kripken/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:function () { + // https://github.com/kripken/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:function (dev, ops) { + TTY.ttys[dev] = { input: [], output: [], ops: ops }; + FS.registerDevice(dev, TTY.stream_ops); + },stream_ops:{open:function (stream) { + var tty = TTY.ttys[stream.node.rdev]; + if (!tty) { + throw new FS.ErrnoError(ERRNO_CODES.ENODEV); + } + stream.tty = tty; + stream.seekable = false; + },close:function (stream) { + // flush any pending line data + stream.tty.ops.flush(stream.tty); + },flush:function (stream) { + stream.tty.ops.flush(stream.tty); + },read:function (stream, buffer, offset, length, pos /* ignored */) { + if (!stream.tty || !stream.tty.ops.get_char) { + throw new FS.ErrnoError(ERRNO_CODES.ENXIO); + } + 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(ERRNO_CODES.EIO); + } + if (result === undefined && bytesRead === 0) { + throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); + } + if (result === null || result === undefined) break; + bytesRead++; + buffer[offset+i] = result; + } + if (bytesRead) { + stream.node.timestamp = Date.now(); + } + return bytesRead; + },write:function (stream, buffer, offset, length, pos) { + if (!stream.tty || !stream.tty.ops.put_char) { + throw new FS.ErrnoError(ERRNO_CODES.ENXIO); + } + try { + for (var i = 0; i < length; i++) { + stream.tty.ops.put_char(stream.tty, buffer[offset+i]); + } + } catch (e) { + throw new FS.ErrnoError(ERRNO_CODES.EIO); + } + if (length) { + stream.node.timestamp = Date.now(); + } + return i; + }},default_tty_ops:{get_char:function (tty) { + if (!tty.input.length) { + var result = null; + if (ENVIRONMENT_IS_NODE) { + // we will read data by chunks of BUFSIZE + var BUFSIZE = 256; + var buf = new Buffer(BUFSIZE); + var bytesRead = 0; + + var isPosixPlatform = (process.platform != 'win32'); // Node doesn't offer a direct check, so test by exclusion + + var fd = process.stdin.fd; + if (isPosixPlatform) { + // Linux and Mac cannot use process.stdin.fd (which isn't set up as sync) + var usingDevice = false; + try { + fd = fs.openSync('/dev/stdin', 'r'); + usingDevice = true; + } catch (e) {} + } + + try { + bytesRead = fs.readSync(fd, buf, 0, BUFSIZE, null); + } 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().indexOf('EOF') != -1) bytesRead = 0; + else throw e; + } + + if (usingDevice) { fs.closeSync(fd); } + if (bytesRead > 0) { + result = buf.slice(0, bytesRead).toString('utf-8'); + } else { + result = null; + } + + } else if (typeof window != 'undefined' && + typeof window.prompt == 'function') { + // Browser. + result = window.prompt('Input: '); // returns null on cancel + if (result !== null) { + result += '\n'; + } + } else if (typeof readline == 'function') { + // Command line. + result = readline(); + if (result !== null) { + result += '\n'; + } + } + if (!result) { + return null; + } + tty.input = intArrayFromString(result, true); + } + return tty.input.shift(); + },put_char:function (tty, val) { + if (val === null || val === 10) { + out(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } else { + if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle. + } + },flush:function (tty) { + if (tty.output && tty.output.length > 0) { + out(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } + }},default_tty1_ops:{put_char:function (tty, val) { + if (val === null || val === 10) { + err(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } else { + if (val != 0) tty.output.push(val); + } + },flush:function (tty) { + if (tty.output && tty.output.length > 0) { + err(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } + }}}; + + var MEMFS={ops_table:null,mount:function (mount) { + return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); + },createNode:function (parent, name, mode, dev) { + if (FS.isBlkdev(mode) || FS.isFIFO(mode)) { + // no supported + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + if (!MEMFS.ops_table) { + 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, + allocate: MEMFS.stream_ops.allocate, + 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; + node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity. + // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred + // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size + // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme. + node.contents = null; + } 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.timestamp = Date.now(); + // add the new node to the parent + if (parent) { + parent.contents[name] = node; + } + return node; + },getFileDataAsRegularArray:function (node) { + if (node.contents && node.contents.subarray) { + var arr = []; + for (var i = 0; i < node.usedBytes; ++i) arr.push(node.contents[i]); + return arr; // Returns a copy of the original data. + } + return node.contents; // No-op, the file contents are already in a JS array. Return as-is. + },getFileDataAsTypedArray:function (node) { + if (!node.contents) return new Uint8Array; + if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes. + return new Uint8Array(node.contents); + },expandFileStorage:function (node, newCapacity) { + // If we are asked to expand the size of a file that already exists, revert to using a standard JS array to store the file + // instead of a typed array. This makes resizing the array more flexible because we can just .push() elements at the back to + // increase the size. + if (node.contents && node.contents.subarray && newCapacity > node.contents.length) { + node.contents = MEMFS.getFileDataAsRegularArray(node); + node.usedBytes = node.contents.length; // We might be writing to a lazy-loaded file which had overridden this property, so force-reset it. + } + + if (!node.contents || node.contents.subarray) { // Keep using a typed array if creating a new storage, or if old one was a typed array as well. + var prevCapacity = node.contents ? node.contents.length : 0; + 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 != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding. + var oldContents = node.contents; + node.contents = new Uint8Array(newCapacity); // Allocate new storage. + if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage. + return; + } + // Not using a typed array to back the file storage. Use a standard JS array instead. + if (!node.contents && newCapacity > 0) node.contents = []; + while (node.contents.length < newCapacity) node.contents.push(0); + },resizeFileStorage:function (node, newSize) { + if (node.usedBytes == newSize) return; + if (newSize == 0) { + node.contents = null; // Fully decommit when requesting a resize to zero. + node.usedBytes = 0; + return; + } + if (!node.contents || node.contents.subarray) { // Resize a typed array if that is being used as the backing store. + var oldContents = node.contents; + node.contents = new Uint8Array(new ArrayBuffer(newSize)); // Allocate new storage. + if (oldContents) { + node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage. + } + node.usedBytes = newSize; + return; + } + // Backing with a JS array. + if (!node.contents) node.contents = []; + if (node.contents.length > newSize) node.contents.length = newSize; + else while (node.contents.length < newSize) node.contents.push(0); + node.usedBytes = newSize; + },node_ops:{getattr:function (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.timestamp); + attr.mtime = new Date(node.timestamp); + attr.ctime = new Date(node.timestamp); + // 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:function (node, attr) { + if (attr.mode !== undefined) { + node.mode = attr.mode; + } + if (attr.timestamp !== undefined) { + node.timestamp = attr.timestamp; + } + if (attr.size !== undefined) { + MEMFS.resizeFileStorage(node, attr.size); + } + },lookup:function (parent, name) { + throw FS.genericErrors[ERRNO_CODES.ENOENT]; + },mknod:function (parent, name, mode, dev) { + return MEMFS.createNode(parent, name, mode, dev); + },rename:function (old_node, new_dir, new_name) { + // if we're overwriting a directory at new_name, make sure it's empty. + if (FS.isDir(old_node.mode)) { + var new_node; + try { + new_node = FS.lookupNode(new_dir, new_name); + } catch (e) { + } + if (new_node) { + for (var i in new_node.contents) { + throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY); + } + } + } + // do the internal rewiring + delete old_node.parent.contents[old_node.name]; + old_node.name = new_name; + new_dir.contents[new_name] = old_node; + old_node.parent = new_dir; + },unlink:function (parent, name) { + delete parent.contents[name]; + },rmdir:function (parent, name) { + var node = FS.lookupNode(parent, name); + for (var i in node.contents) { + throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY); + } + delete parent.contents[name]; + },readdir:function (node) { + var entries = ['.', '..'] + for (var key in node.contents) { + if (!node.contents.hasOwnProperty(key)) { + continue; + } + entries.push(key); + } + return entries; + },symlink:function (parent, newname, oldpath) { + var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0); + node.link = oldpath; + return node; + },readlink:function (node) { + if (!FS.isLink(node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + return node.link; + }},stream_ops:{read:function (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); + if (size > 8 && contents.subarray) { // non-trivial, and typed array + buffer.set(contents.subarray(position, position + size), offset); + } else { + for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i]; + } + return size; + },write:function (stream, buffer, offset, length, position, canOwn) { + // If memory can grow, we don't want to hold on to references of + // the memory Buffer, as they may get invalidated. That means + // we need to do a copy here. + canOwn = false; + + if (!length) return 0; + var node = stream.node; + node.timestamp = Date.now(); + + if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array? + if (canOwn) { + node.contents = buffer.subarray(offset, offset + length); + node.usedBytes = length; + return 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 = new Uint8Array(buffer.subarray(offset, offset + length)); + node.usedBytes = length; + return length; + } else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file? + node.contents.set(buffer.subarray(offset, offset + length), position); + return length; + } + } + + // Appending to an existing file and we need to reallocate, or source data did not come as a typed array. + MEMFS.expandFileStorage(node, position+length); + if (node.contents.subarray && buffer.subarray) node.contents.set(buffer.subarray(offset, offset + length), position); // Use typed array write if available. + else { + for (var i = 0; i < length; i++) { + node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not. + } + } + node.usedBytes = Math.max(node.usedBytes, position+length); + return length; + },llseek:function (stream, offset, whence) { + var position = offset; + if (whence === 1) { // SEEK_CUR. + position += stream.position; + } else if (whence === 2) { // SEEK_END. + if (FS.isFile(stream.node.mode)) { + position += stream.node.usedBytes; + } + } + if (position < 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + return position; + },allocate:function (stream, offset, length) { + MEMFS.expandFileStorage(stream.node, offset + length); + stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length); + },mmap:function (stream, buffer, offset, length, position, prot, flags) { + if (!FS.isFile(stream.node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.ENODEV); + } + var ptr; + var allocated; + var contents = stream.node.contents; + // Only make a new copy when MAP_PRIVATE is specified. + if ( !(flags & 2) && + (contents.buffer === buffer || contents.buffer === buffer.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 { + // Try to avoid unnecessary slices. + if (position > 0 || position + length < stream.node.usedBytes) { + if (contents.subarray) { + contents = contents.subarray(position, position + length); + } else { + contents = Array.prototype.slice.call(contents, position, position + length); + } + } + allocated = true; + ptr = _malloc(length); + if (!ptr) { + throw new FS.ErrnoError(ERRNO_CODES.ENOMEM); + } + buffer.set(contents, ptr); + } + return { ptr: ptr, allocated: allocated }; + },msync:function (stream, buffer, offset, length, mmapFlags) { + if (!FS.isFile(stream.node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.ENODEV); + } + if (mmapFlags & 2) { + // MAP_PRIVATE calls need not to be synced back to underlying fs + return 0; + } + + var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false); + // should we check if bytesWritten and length are the same? + return 0; + }}}; + + var IDBFS={dbs:{},indexedDB:function () { + if (typeof indexedDB !== 'undefined') return indexedDB; + var ret = null; + if (typeof window === 'object') ret = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB; + assert(ret, 'IDBFS used, but indexedDB not supported'); + return ret; + },DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) { + // reuse all of the core MEMFS functionality + return MEMFS.mount.apply(null, arguments); + },syncfs:function (mount, populate, callback) { + IDBFS.getLocalSet(mount, function(err, local) { + if (err) return callback(err); + + IDBFS.getRemoteSet(mount, function(err, remote) { + if (err) return callback(err); + + var src = populate ? remote : local; + var dst = populate ? local : remote; + + IDBFS.reconcile(src, dst, callback); + }); + }); + },getDB:function (name, callback) { + // check the cache first + var db = IDBFS.dbs[name]; + if (db) { + return callback(null, db); + } + + var req; + try { + req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION); + } catch (e) { + return callback(e); + } + if (!req) { + return callback("Unable to connect to IndexedDB"); + } + req.onupgradeneeded = function(e) { + var db = e.target.result; + var transaction = e.target.transaction; + + var fileStore; + + if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) { + fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME); + } else { + fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME); + } + + if (!fileStore.indexNames.contains('timestamp')) { + fileStore.createIndex('timestamp', 'timestamp', { unique: false }); + } + }; + req.onsuccess = function() { + db = req.result; + + // add to the cache + IDBFS.dbs[name] = db; + callback(null, db); + }; + req.onerror = function(e) { + callback(this.error); + e.preventDefault(); + }; + },getLocalSet:function (mount, callback) { + var entries = {}; + + function isRealDir(p) { + return p !== '.' && p !== '..'; + }; + function toAbsolute(root) { + return function(p) { + return PATH.join2(root, p); + } + }; + + var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint)); + + while (check.length) { + var path = check.pop(); + var stat; + + try { + stat = FS.stat(path); + } catch (e) { + return callback(e); + } + + if (FS.isDir(stat.mode)) { + check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path))); + } + + entries[path] = { timestamp: stat.mtime }; + } + + return callback(null, { type: 'local', entries: entries }); + },getRemoteSet:function (mount, callback) { + var entries = {}; + + IDBFS.getDB(mount.mountpoint, function(err, db) { + if (err) return callback(err); + + try { + var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly'); + transaction.onerror = function(e) { + callback(this.error); + e.preventDefault(); + }; + + var store = transaction.objectStore(IDBFS.DB_STORE_NAME); + var index = store.index('timestamp'); + + index.openKeyCursor().onsuccess = function(event) { + var cursor = event.target.result; + + if (!cursor) { + return callback(null, { type: 'remote', db: db, entries: entries }); + } + + entries[cursor.primaryKey] = { timestamp: cursor.key }; + + cursor.continue(); + }; + } catch (e) { + return callback(e); + } + }); + },loadLocalEntry:function (path, callback) { + var stat, node; + + try { + var lookup = FS.lookupPath(path); + node = lookup.node; + stat = FS.stat(path); + } catch (e) { + return callback(e); + } + + if (FS.isDir(stat.mode)) { + return callback(null, { timestamp: stat.mtime, mode: stat.mode }); + } else if (FS.isFile(stat.mode)) { + // Performance consideration: storing a normal JavaScript array to a IndexedDB is much slower than storing a typed array. + // Therefore always convert the file contents to a typed array first before writing the data to IndexedDB. + node.contents = MEMFS.getFileDataAsTypedArray(node); + return callback(null, { timestamp: stat.mtime, mode: stat.mode, contents: node.contents }); + } else { + return callback(new Error('node type not supported')); + } + },storeLocalEntry:function (path, entry, callback) { + try { + if (FS.isDir(entry.mode)) { + FS.mkdir(path, entry.mode); + } else if (FS.isFile(entry.mode)) { + FS.writeFile(path, entry.contents, { canOwn: true }); + } else { + return callback(new Error('node type not supported')); + } + + FS.chmod(path, entry.mode); + FS.utime(path, entry.timestamp, entry.timestamp); + } catch (e) { + return callback(e); + } + + callback(null); + },removeLocalEntry:function (path, callback) { + try { + var lookup = FS.lookupPath(path); + var stat = FS.stat(path); + + if (FS.isDir(stat.mode)) { + FS.rmdir(path); + } else if (FS.isFile(stat.mode)) { + FS.unlink(path); + } + } catch (e) { + return callback(e); + } + + callback(null); + },loadRemoteEntry:function (store, path, callback) { + var req = store.get(path); + req.onsuccess = function(event) { callback(null, event.target.result); }; + req.onerror = function(e) { + callback(this.error); + e.preventDefault(); + }; + },storeRemoteEntry:function (store, path, entry, callback) { + var req = store.put(entry, path); + req.onsuccess = function() { callback(null); }; + req.onerror = function(e) { + callback(this.error); + e.preventDefault(); + }; + },removeRemoteEntry:function (store, path, callback) { + var req = store.delete(path); + req.onsuccess = function() { callback(null); }; + req.onerror = function(e) { + callback(this.error); + e.preventDefault(); + }; + },reconcile:function (src, dst, callback) { + var total = 0; + + var create = []; + Object.keys(src.entries).forEach(function (key) { + var e = src.entries[key]; + var e2 = dst.entries[key]; + if (!e2 || e.timestamp > e2.timestamp) { + create.push(key); + total++; + } + }); + + var remove = []; + Object.keys(dst.entries).forEach(function (key) { + var e = dst.entries[key]; + var e2 = src.entries[key]; + if (!e2) { + remove.push(key); + total++; + } + }); + + if (!total) { + return callback(null); + } + + var errored = false; + var completed = 0; + var db = src.type === 'remote' ? src.db : dst.db; + var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite'); + var store = transaction.objectStore(IDBFS.DB_STORE_NAME); + + function done(err) { + if (err) { + if (!done.errored) { + done.errored = true; + return callback(err); + } + return; + } + if (++completed >= total) { + return callback(null); + } + }; + + transaction.onerror = function(e) { + done(this.error); + e.preventDefault(); + }; + + // sort paths in ascending order so directory entries are created + // before the files inside them + create.sort().forEach(function (path) { + if (dst.type === 'local') { + IDBFS.loadRemoteEntry(store, path, function (err, entry) { + if (err) return done(err); + IDBFS.storeLocalEntry(path, entry, done); + }); + } else { + IDBFS.loadLocalEntry(path, function (err, entry) { + if (err) return done(err); + IDBFS.storeRemoteEntry(store, path, entry, done); + }); + } + }); + + // sort paths in descending order so files are deleted before their + // parent directories + remove.sort().reverse().forEach(function(path) { + if (dst.type === 'local') { + IDBFS.removeLocalEntry(path, done); + } else { + IDBFS.removeRemoteEntry(store, path, done); + } + }); + }}; + + var NODEFS={isWindows:false,staticInit:function () { + NODEFS.isWindows = !!process.platform.match(/^win/); + var flags = process["binding"]("constants"); + // Node.js 4 compatibility: it has no namespaces for constants + if (flags["fs"]) { + flags = flags["fs"]; + } + NODEFS.flagsForNodeMap = { + "1024": flags["O_APPEND"], + "64": flags["O_CREAT"], + "128": flags["O_EXCL"], + "0": flags["O_RDONLY"], + "2": flags["O_RDWR"], + "4096": flags["O_SYNC"], + "512": flags["O_TRUNC"], + "1": flags["O_WRONLY"] + }; + },bufferFrom:function (arrayBuffer) { + // Node.js < 4.5 compatibility: Buffer.from does not support ArrayBuffer + // Buffer.from before 4.5 was just a method inherited from Uint8Array + // Buffer.alloc has been added with Buffer.from together, so check it instead + return Buffer.alloc ? Buffer.from(arrayBuffer) : new Buffer(arrayBuffer); + },mount:function (mount) { + assert(ENVIRONMENT_IS_NODE); + return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0); + },createNode:function (parent, name, mode, dev) { + if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + var node = FS.createNode(parent, name, mode); + node.node_ops = NODEFS.node_ops; + node.stream_ops = NODEFS.stream_ops; + return node; + },getMode:function (path) { + var stat; + try { + stat = fs.lstatSync(path); + if (NODEFS.isWindows) { + // Node.js on Windows never represents permission bit 'x', so + // propagate read bits to execute bits + stat.mode = stat.mode | ((stat.mode & 292) >> 2); + } + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + return stat.mode; + },realPath:function (node) { + var parts = []; + while (node.parent !== node) { + parts.push(node.name); + node = node.parent; + } + parts.push(node.mount.opts.root); + parts.reverse(); + return PATH.join.apply(null, parts); + },flagsForNode:function (flags) { + flags &= ~0x200000 /*O_PATH*/; // Ignore this flag from musl, otherwise node.js fails to open the file. + flags &= ~0x800 /*O_NONBLOCK*/; // Ignore this flag from musl, otherwise node.js fails to open the file. + flags &= ~0x8000 /*O_LARGEFILE*/; // Ignore this flag from musl, otherwise node.js fails to open the file. + flags &= ~0x80000 /*O_CLOEXEC*/; // Some applications may pass it; it makes no sense for a single process. + var newFlags = 0; + for (var k in NODEFS.flagsForNodeMap) { + if (flags & k) { + newFlags |= NODEFS.flagsForNodeMap[k]; + flags ^= k; + } + } + + if (!flags) { + return newFlags; + } else { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + },node_ops:{getattr:function (node) { + var path = NODEFS.realPath(node); + var stat; + try { + stat = fs.lstatSync(path); + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + // node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake them with default blksize of 4096. + // See http://support.microsoft.com/kb/140365 + if (NODEFS.isWindows && !stat.blksize) { + stat.blksize = 4096; + } + if (NODEFS.isWindows && !stat.blocks) { + stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0; + } + return { + dev: stat.dev, + ino: stat.ino, + mode: stat.mode, + nlink: stat.nlink, + uid: stat.uid, + gid: stat.gid, + rdev: stat.rdev, + size: stat.size, + atime: stat.atime, + mtime: stat.mtime, + ctime: stat.ctime, + blksize: stat.blksize, + blocks: stat.blocks + }; + },setattr:function (node, attr) { + var path = NODEFS.realPath(node); + try { + if (attr.mode !== undefined) { + fs.chmodSync(path, attr.mode); + // update the common node structure mode as well + node.mode = attr.mode; + } + if (attr.timestamp !== undefined) { + var date = new Date(attr.timestamp); + fs.utimesSync(path, date, date); + } + if (attr.size !== undefined) { + fs.truncateSync(path, attr.size); + } + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },lookup:function (parent, name) { + var path = PATH.join2(NODEFS.realPath(parent), name); + var mode = NODEFS.getMode(path); + return NODEFS.createNode(parent, name, mode); + },mknod:function (parent, name, mode, dev) { + var node = NODEFS.createNode(parent, name, mode, dev); + // create the backing node for this in the fs root as well + var path = NODEFS.realPath(node); + try { + if (FS.isDir(node.mode)) { + fs.mkdirSync(path, node.mode); + } else { + fs.writeFileSync(path, '', { mode: node.mode }); + } + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + return node; + },rename:function (oldNode, newDir, newName) { + var oldPath = NODEFS.realPath(oldNode); + var newPath = PATH.join2(NODEFS.realPath(newDir), newName); + try { + fs.renameSync(oldPath, newPath); + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },unlink:function (parent, name) { + var path = PATH.join2(NODEFS.realPath(parent), name); + try { + fs.unlinkSync(path); + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },rmdir:function (parent, name) { + var path = PATH.join2(NODEFS.realPath(parent), name); + try { + fs.rmdirSync(path); + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },readdir:function (node) { + var path = NODEFS.realPath(node); + try { + return fs.readdirSync(path); + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },symlink:function (parent, newName, oldPath) { + var newPath = PATH.join2(NODEFS.realPath(parent), newName); + try { + fs.symlinkSync(oldPath, newPath); + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },readlink:function (node) { + var path = NODEFS.realPath(node); + try { + path = fs.readlinkSync(path); + path = NODEJS_PATH.relative(NODEJS_PATH.resolve(node.mount.opts.root), path); + return path; + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + }},stream_ops:{open:function (stream) { + var path = NODEFS.realPath(stream.node); + try { + if (FS.isFile(stream.node.mode)) { + stream.nfd = fs.openSync(path, NODEFS.flagsForNode(stream.flags)); + } + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },close:function (stream) { + try { + if (FS.isFile(stream.node.mode) && stream.nfd) { + fs.closeSync(stream.nfd); + } + } catch (e) { + if (!e.code) throw e; + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },read:function (stream, buffer, offset, length, position) { + // Node.js < 6 compatibility: node errors on 0 length reads + if (length === 0) return 0; + try { + return fs.readSync(stream.nfd, NODEFS.bufferFrom(buffer.buffer), offset, length, position); + } catch (e) { + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },write:function (stream, buffer, offset, length, position) { + try { + return fs.writeSync(stream.nfd, NODEFS.bufferFrom(buffer.buffer), offset, length, position); + } catch (e) { + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + },llseek:function (stream, offset, whence) { + var position = offset; + if (whence === 1) { // SEEK_CUR. + position += stream.position; + } else if (whence === 2) { // SEEK_END. + if (FS.isFile(stream.node.mode)) { + try { + var stat = fs.fstatSync(stream.nfd); + position += stat.size; + } catch (e) { + throw new FS.ErrnoError(ERRNO_CODES[e.code]); + } + } + } + + if (position < 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + + return position; + }}}; + + var WORKERFS={DIR_MODE:16895,FILE_MODE:33279,reader:null,mount:function (mount) { + assert(ENVIRONMENT_IS_WORKER); + if (!WORKERFS.reader) WORKERFS.reader = new FileReaderSync(); + var root = WORKERFS.createNode(null, '/', WORKERFS.DIR_MODE, 0); + var createdParents = {}; + function ensureParent(path) { + // return the parent node, creating subdirs as necessary + var parts = path.split('/'); + var parent = root; + for (var i = 0; i < parts.length-1; i++) { + var curr = parts.slice(0, i+1).join('/'); + // Issue 4254: Using curr as a node name will prevent the node + // from being found in FS.nameTable when FS.open is called on + // a path which holds a child of this node, + // given that all FS functions assume node names + // are just their corresponding parts within their given path, + // rather than incremental aggregates which include their parent's + // directories. + if (!createdParents[curr]) { + createdParents[curr] = WORKERFS.createNode(parent, parts[i], WORKERFS.DIR_MODE, 0); + } + parent = createdParents[curr]; + } + return parent; + } + function base(path) { + var parts = path.split('/'); + return parts[parts.length-1]; + } + // We also accept FileList here, by using Array.prototype + Array.prototype.forEach.call(mount.opts["files"] || [], function(file) { + WORKERFS.createNode(ensureParent(file.name), base(file.name), WORKERFS.FILE_MODE, 0, file, file.lastModifiedDate); + }); + (mount.opts["blobs"] || []).forEach(function(obj) { + WORKERFS.createNode(ensureParent(obj["name"]), base(obj["name"]), WORKERFS.FILE_MODE, 0, obj["data"]); + }); + (mount.opts["packages"] || []).forEach(function(pack) { + pack['metadata'].files.forEach(function(file) { + var name = file.filename.substr(1); // remove initial slash + WORKERFS.createNode(ensureParent(name), base(name), WORKERFS.FILE_MODE, 0, pack['blob'].slice(file.start, file.end)); + }); + }); + return root; + },createNode:function (parent, name, mode, dev, contents, mtime) { + var node = FS.createNode(parent, name, mode); + node.mode = mode; + node.node_ops = WORKERFS.node_ops; + node.stream_ops = WORKERFS.stream_ops; + node.timestamp = (mtime || new Date).getTime(); + assert(WORKERFS.FILE_MODE !== WORKERFS.DIR_MODE); + if (mode === WORKERFS.FILE_MODE) { + node.size = contents.size; + node.contents = contents; + } else { + node.size = 4096; + node.contents = {}; + } + if (parent) { + parent.contents[name] = node; + } + return node; + },node_ops:{getattr:function (node) { + return { + dev: 1, + ino: undefined, + mode: node.mode, + nlink: 1, + uid: 0, + gid: 0, + rdev: undefined, + size: node.size, + atime: new Date(node.timestamp), + mtime: new Date(node.timestamp), + ctime: new Date(node.timestamp), + blksize: 4096, + blocks: Math.ceil(node.size / 4096), + }; + },setattr:function (node, attr) { + if (attr.mode !== undefined) { + node.mode = attr.mode; + } + if (attr.timestamp !== undefined) { + node.timestamp = attr.timestamp; + } + },lookup:function (parent, name) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + },mknod:function (parent, name, mode, dev) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + },rename:function (oldNode, newDir, newName) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + },unlink:function (parent, name) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + },rmdir:function (parent, name) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + },readdir:function (node) { + var entries = ['.', '..']; + for (var key in node.contents) { + if (!node.contents.hasOwnProperty(key)) { + continue; + } + entries.push(key); + } + return entries; + },symlink:function (parent, newName, oldPath) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + },readlink:function (node) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + }},stream_ops:{read:function (stream, buffer, offset, length, position) { + if (position >= stream.node.size) return 0; + var chunk = stream.node.contents.slice(position, position + length); + var ab = WORKERFS.reader.readAsArrayBuffer(chunk); + buffer.set(new Uint8Array(ab), offset); + return chunk.size; + },write:function (stream, buffer, offset, length, position) { + throw new FS.ErrnoError(ERRNO_CODES.EIO); + },llseek:function (stream, offset, whence) { + var position = offset; + if (whence === 1) { // SEEK_CUR. + position += stream.position; + } else if (whence === 2) { // SEEK_END. + if (FS.isFile(stream.node.mode)) { + position += stream.node.size; + } + } + if (position < 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + return position; + }}}; + + var _stdin=STATICTOP; STATICTOP += 16;; + + var _stdout=STATICTOP; STATICTOP += 16;; + + var _stderr=STATICTOP; STATICTOP += 16;;var FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,handleFSError:function (e) { + if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace(); + return ___setErrNo(e.errno); + },lookupPath:function (path, opts) { + path = PATH.resolve(FS.cwd(), path); + opts = opts || {}; + + if (!path) return { path: '', node: null }; + + var defaults = { + follow_mount: true, + recurse_count: 0 + }; + for (var key in defaults) { + if (opts[key] === undefined) { + opts[key] = defaults[key]; + } + } + + if (opts.recurse_count > 8) { // max recursive lookup of 8 + throw new FS.ErrnoError(ERRNO_CODES.ELOOP); + } + + // split the path + var parts = PATH.normalizeArray(path.split('/').filter(function(p) { + return !!p; + }), false); + + // 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; + } + + current = FS.lookupNode(current, parts[i]); + current_path = PATH.join2(current_path, parts[i]); + + // jump to the mount's root node if this is a mountpoint + if (FS.isMountpoint(current)) { + if (!islast || (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 (!islast || opts.follow) { + var count = 0; + while (FS.isLink(current.mode)) { + var link = FS.readlink(current_path); + current_path = PATH.resolve(PATH.dirname(current_path), link); + + var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count }); + current = lookup.node; + + if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX). + throw new FS.ErrnoError(ERRNO_CODES.ELOOP); + } + } + } + } + + return { path: current_path, node: current }; + },getPath:function (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:function (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:function (node) { + var hash = FS.hashName(node.parent.id, node.name); + node.name_next = FS.nameTable[hash]; + FS.nameTable[hash] = node; + },hashRemoveNode:function (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:function (parent, name) { + var err = FS.mayLookup(parent); + if (err) { + throw new FS.ErrnoError(err, parent); + } + 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:function (parent, name, mode, rdev) { + if (!FS.FSNode) { + FS.FSNode = function(parent, name, mode, rdev) { + if (!parent) { + parent = this; // root node sets parent to itself + } + this.parent = parent; + this.mount = parent.mount; + this.mounted = null; + this.id = FS.nextInode++; + this.name = name; + this.mode = mode; + this.node_ops = {}; + this.stream_ops = {}; + this.rdev = rdev; + }; + + FS.FSNode.prototype = {}; + + // compatibility + var readMode = 292 | 73; + var writeMode = 146; + + // NOTE we must use Object.defineProperties instead of individual calls to + // Object.defineProperty in order to make closure compiler happy + Object.defineProperties(FS.FSNode.prototype, { + read: { + get: function() { return (this.mode & readMode) === readMode; }, + set: function(val) { val ? this.mode |= readMode : this.mode &= ~readMode; } + }, + write: { + get: function() { return (this.mode & writeMode) === writeMode; }, + set: function(val) { val ? this.mode |= writeMode : this.mode &= ~writeMode; } + }, + isFolder: { + get: function() { return FS.isDir(this.mode); } + }, + isDevice: { + get: function() { return FS.isChrdev(this.mode); } + } + }); + } + + var node = new FS.FSNode(parent, name, mode, rdev); + + FS.hashAddNode(node); + + return node; + },destroyNode:function (node) { + FS.hashRemoveNode(node); + },isRoot:function (node) { + return node === node.parent; + },isMountpoint:function (node) { + return !!node.mounted; + },isFile:function (mode) { + return (mode & 61440) === 32768; + },isDir:function (mode) { + return (mode & 61440) === 16384; + },isLink:function (mode) { + return (mode & 61440) === 40960; + },isChrdev:function (mode) { + return (mode & 61440) === 8192; + },isBlkdev:function (mode) { + return (mode & 61440) === 24576; + },isFIFO:function (mode) { + return (mode & 61440) === 4096; + },isSocket:function (mode) { + return (mode & 49152) === 49152; + },flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function (str) { + var flags = FS.flagModes[str]; + if (typeof flags === 'undefined') { + throw new Error('Unknown file open mode: ' + str); + } + return flags; + },flagsToPermissionString:function (flag) { + var perms = ['r', 'w', 'rw'][flag & 3]; + if ((flag & 512)) { + perms += 'w'; + } + return perms; + },nodePermissions:function (node, perms) { + if (FS.ignorePermissions) { + return 0; + } + // return 0 if any user, group or owner bits are set. + if (perms.indexOf('r') !== -1 && !(node.mode & 292)) { + return ERRNO_CODES.EACCES; + } else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) { + return ERRNO_CODES.EACCES; + } else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) { + return ERRNO_CODES.EACCES; + } + return 0; + },mayLookup:function (dir) { + var err = FS.nodePermissions(dir, 'x'); + if (err) return err; + if (!dir.node_ops.lookup) return ERRNO_CODES.EACCES; + return 0; + },mayCreate:function (dir, name) { + try { + var node = FS.lookupNode(dir, name); + return ERRNO_CODES.EEXIST; + } catch (e) { + } + return FS.nodePermissions(dir, 'wx'); + },mayDelete:function (dir, name, isdir) { + var node; + try { + node = FS.lookupNode(dir, name); + } catch (e) { + return e.errno; + } + var err = FS.nodePermissions(dir, 'wx'); + if (err) { + return err; + } + if (isdir) { + if (!FS.isDir(node.mode)) { + return ERRNO_CODES.ENOTDIR; + } + if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) { + return ERRNO_CODES.EBUSY; + } + } else { + if (FS.isDir(node.mode)) { + return ERRNO_CODES.EISDIR; + } + } + return 0; + },mayOpen:function (node, flags) { + if (!node) { + return ERRNO_CODES.ENOENT; + } + if (FS.isLink(node.mode)) { + return ERRNO_CODES.ELOOP; + } else if (FS.isDir(node.mode)) { + if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write + (flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only) + return ERRNO_CODES.EISDIR; + } + } + return FS.nodePermissions(node, FS.flagsToPermissionString(flags)); + },MAX_OPEN_FDS:4096,nextfd:function (fd_start, fd_end) { + fd_start = fd_start || 0; + fd_end = fd_end || FS.MAX_OPEN_FDS; + for (var fd = fd_start; fd <= fd_end; fd++) { + if (!FS.streams[fd]) { + return fd; + } + } + throw new FS.ErrnoError(ERRNO_CODES.EMFILE); + },getStream:function (fd) { + return FS.streams[fd]; + },createStream:function (stream, fd_start, fd_end) { + if (!FS.FSStream) { + FS.FSStream = function(){}; + FS.FSStream.prototype = {}; + // compatibility + Object.defineProperties(FS.FSStream.prototype, { + object: { + get: function() { return this.node; }, + set: function(val) { this.node = val; } + }, + isRead: { + get: function() { return (this.flags & 2097155) !== 1; } + }, + isWrite: { + get: function() { return (this.flags & 2097155) !== 0; } + }, + isAppend: { + get: function() { return (this.flags & 1024); } + } + }); + } + // clone it, so we can return an instance of FSStream + var newStream = new FS.FSStream(); + for (var p in stream) { + newStream[p] = stream[p]; + } + stream = newStream; + var fd = FS.nextfd(fd_start, fd_end); + stream.fd = fd; + FS.streams[fd] = stream; + return stream; + },closeStream:function (fd) { + FS.streams[fd] = null; + },chrdev_stream_ops:{open:function (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 + if (stream.stream_ops.open) { + stream.stream_ops.open(stream); + } + },llseek:function () { + throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); + }},major:function (dev) { + return ((dev) >> 8); + },minor:function (dev) { + return ((dev) & 0xff); + },makedev:function (ma, mi) { + return ((ma) << 8 | (mi)); + },registerDevice:function (dev, ops) { + FS.devices[dev] = { stream_ops: ops }; + },getDevice:function (dev) { + return FS.devices[dev]; + },getMounts:function (mount) { + var mounts = []; + var check = [mount]; + + while (check.length) { + var m = check.pop(); + + mounts.push(m); + + check.push.apply(check, m.mounts); + } + + return mounts; + },syncfs:function (populate, callback) { + if (typeof(populate) === 'function') { + callback = populate; + populate = false; + } + + FS.syncFSRequests++; + + if (FS.syncFSRequests > 1) { + console.log('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(err) { + assert(FS.syncFSRequests > 0); + FS.syncFSRequests--; + return callback(err); + } + + function done(err) { + if (err) { + if (!done.errored) { + done.errored = true; + return doCallback(err); + } + return; + } + if (++completed >= mounts.length) { + doCallback(null); + } + }; + + // sync all mounts + mounts.forEach(function (mount) { + if (!mount.type.syncfs) { + return done(null); + } + mount.type.syncfs(mount, populate, done); + }); + },mount:function (type, opts, mountpoint) { + var root = mountpoint === '/'; + var pseudo = !mountpoint; + var node; + + if (root && FS.root) { + throw new FS.ErrnoError(ERRNO_CODES.EBUSY); + } 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(ERRNO_CODES.EBUSY); + } + + if (!FS.isDir(node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR); + } + } + + var mount = { + type: type, + opts: opts, + mountpoint: 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:function (mountpoint) { + var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); + + if (!FS.isMountpoint(lookup.node)) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + + // destroy the nodes for this mount, and all its child mounts + var node = lookup.node; + var mount = node.mounted; + var mounts = FS.getMounts(mount); + + Object.keys(FS.nameTable).forEach(function (hash) { + var current = FS.nameTable[hash]; + + while (current) { + var next = current.name_next; + + if (mounts.indexOf(current.mount) !== -1) { + 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:function (parent, name) { + return parent.node_ops.lookup(parent, name); + },mknod:function (path, mode, dev) { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + if (!name || name === '.' || name === '..') { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + var err = FS.mayCreate(parent, name); + if (err) { + throw new FS.ErrnoError(err); + } + if (!parent.node_ops.mknod) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + return parent.node_ops.mknod(parent, name, mode, dev); + },create:function (path, mode) { + mode = mode !== undefined ? mode : 438 /* 0666 */; + mode &= 4095; + mode |= 32768; + return FS.mknod(path, mode, 0); + },mkdir:function (path, mode) { + mode = mode !== undefined ? mode : 511 /* 0777 */; + mode &= 511 | 512; + mode |= 16384; + return FS.mknod(path, mode, 0); + },mkdirTree:function (path, mode) { + var dirs = path.split('/'); + var d = ''; + for (var i = 0; i < dirs.length; ++i) { + if (!dirs[i]) continue; + d += '/' + dirs[i]; + try { + FS.mkdir(d, mode); + } catch(e) { + if (e.errno != ERRNO_CODES.EEXIST) throw e; + } + } + },mkdev:function (path, mode, dev) { + if (typeof(dev) === 'undefined') { + dev = mode; + mode = 438 /* 0666 */; + } + mode |= 8192; + return FS.mknod(path, mode, dev); + },symlink:function (oldpath, newpath) { + if (!PATH.resolve(oldpath)) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + var lookup = FS.lookupPath(newpath, { parent: true }); + var parent = lookup.node; + if (!parent) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + var newname = PATH.basename(newpath); + var err = FS.mayCreate(parent, newname); + if (err) { + throw new FS.ErrnoError(err); + } + if (!parent.node_ops.symlink) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + return parent.node_ops.symlink(parent, newname, oldpath); + },rename:function (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; + try { + lookup = FS.lookupPath(old_path, { parent: true }); + old_dir = lookup.node; + lookup = FS.lookupPath(new_path, { parent: true }); + new_dir = lookup.node; + } catch (e) { + throw new FS.ErrnoError(ERRNO_CODES.EBUSY); + } + if (!old_dir || !new_dir) throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + // need to be part of the same mount + if (old_dir.mount !== new_dir.mount) { + throw new FS.ErrnoError(ERRNO_CODES.EXDEV); + } + // 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.relative(old_path, new_dirname); + if (relative.charAt(0) !== '.') { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + // new path should not be an ancestor of the old path + relative = PATH.relative(new_path, old_dirname); + if (relative.charAt(0) !== '.') { + throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY); + } + // 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 err = FS.mayDelete(old_dir, old_name, isdir); + if (err) { + throw new FS.ErrnoError(err); + } + // need delete permissions if we'll be overwriting. + // need create permissions if new doesn't already exist. + err = new_node ? + FS.mayDelete(new_dir, new_name, isdir) : + FS.mayCreate(new_dir, new_name); + if (err) { + throw new FS.ErrnoError(err); + } + if (!old_dir.node_ops.rename) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) { + throw new FS.ErrnoError(ERRNO_CODES.EBUSY); + } + // if we are going to change the parent, check write permissions + if (new_dir !== old_dir) { + err = FS.nodePermissions(old_dir, 'w'); + if (err) { + throw new FS.ErrnoError(err); + } + } + try { + if (FS.trackingDelegate['willMovePath']) { + FS.trackingDelegate['willMovePath'](old_path, new_path); + } + } catch(e) { + console.log("FS.trackingDelegate['willMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message); + } + // 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); + } catch (e) { + throw e; + } finally { + // add the node back to the hash (in case node_ops.rename + // changed its name) + FS.hashAddNode(old_node); + } + try { + if (FS.trackingDelegate['onMovePath']) FS.trackingDelegate['onMovePath'](old_path, new_path); + } catch(e) { + console.log("FS.trackingDelegate['onMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message); + } + },rmdir:function (path) { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + var node = FS.lookupNode(parent, name); + var err = FS.mayDelete(parent, name, true); + if (err) { + throw new FS.ErrnoError(err); + } + if (!parent.node_ops.rmdir) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(ERRNO_CODES.EBUSY); + } + try { + if (FS.trackingDelegate['willDeletePath']) { + FS.trackingDelegate['willDeletePath'](path); + } + } catch(e) { + console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message); + } + parent.node_ops.rmdir(parent, name); + FS.destroyNode(node); + try { + if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path); + } catch(e) { + console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message); + } + },readdir:function (path) { + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + if (!node.node_ops.readdir) { + throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR); + } + return node.node_ops.readdir(node); + },unlink:function (path) { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + var node = FS.lookupNode(parent, name); + var err = FS.mayDelete(parent, name, false); + if (err) { + // 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(err); + } + if (!parent.node_ops.unlink) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(ERRNO_CODES.EBUSY); + } + try { + if (FS.trackingDelegate['willDeletePath']) { + FS.trackingDelegate['willDeletePath'](path); + } + } catch(e) { + console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message); + } + parent.node_ops.unlink(parent, name); + FS.destroyNode(node); + try { + if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path); + } catch(e) { + console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message); + } + },readlink:function (path) { + var lookup = FS.lookupPath(path); + var link = lookup.node; + if (!link) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + if (!link.node_ops.readlink) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + return PATH.resolve(FS.getPath(link.parent), link.node_ops.readlink(link)); + },stat:function (path, dontFollow) { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + var node = lookup.node; + if (!node) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + if (!node.node_ops.getattr) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + return node.node_ops.getattr(node); + },lstat:function (path) { + return FS.stat(path, true); + },chmod:function (path, mode, dontFollow) { + var node; + if (typeof path === 'string') { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + node = lookup.node; + } else { + node = path; + } + if (!node.node_ops.setattr) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + node.node_ops.setattr(node, { + mode: (mode & 4095) | (node.mode & ~4095), + timestamp: Date.now() + }); + },lchmod:function (path, mode) { + FS.chmod(path, mode, true); + },fchmod:function (fd, mode) { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + FS.chmod(stream.node, mode); + },chown:function (path, uid, gid, dontFollow) { + var node; + if (typeof path === 'string') { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + node = lookup.node; + } else { + node = path; + } + if (!node.node_ops.setattr) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + node.node_ops.setattr(node, { + timestamp: Date.now() + // we ignore the uid / gid for now + }); + },lchown:function (path, uid, gid) { + FS.chown(path, uid, gid, true); + },fchown:function (fd, uid, gid) { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + FS.chown(stream.node, uid, gid); + },truncate:function (path, len) { + if (len < 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + var node; + if (typeof path === 'string') { + var lookup = FS.lookupPath(path, { follow: true }); + node = lookup.node; + } else { + node = path; + } + if (!node.node_ops.setattr) { + throw new FS.ErrnoError(ERRNO_CODES.EPERM); + } + if (FS.isDir(node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.EISDIR); + } + if (!FS.isFile(node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + var err = FS.nodePermissions(node, 'w'); + if (err) { + throw new FS.ErrnoError(err); + } + node.node_ops.setattr(node, { + size: len, + timestamp: Date.now() + }); + },ftruncate:function (fd, len) { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + FS.truncate(stream.node, len); + },utime:function (path, atime, mtime) { + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + node.node_ops.setattr(node, { + timestamp: Math.max(atime, mtime) + }); + },open:function (path, flags, mode, fd_start, fd_end) { + if (path === "") { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags; + mode = typeof mode === 'undefined' ? 438 /* 0666 */ : mode; + if ((flags & 64)) { + mode = (mode & 4095) | 32768; + } else { + mode = 0; + } + var node; + if (typeof path === 'object') { + node = path; + } else { + path = PATH.normalize(path); + try { + var lookup = FS.lookupPath(path, { + follow: !(flags & 131072) + }); + node = lookup.node; + } catch (e) { + // ignore + } + } + // 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(ERRNO_CODES.EEXIST); + } + } else { + // node doesn't exist, try to create it + node = FS.mknod(path, mode, 0); + created = true; + } + } + if (!node) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + // 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(ERRNO_CODES.ENOTDIR); + } + // 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 err = FS.mayOpen(node, flags); + if (err) { + throw new FS.ErrnoError(err); + } + } + // do truncation if necessary + if ((flags & 512)) { + FS.truncate(node, 0); + } + // we've already handled these, don't pass down to the underlying vfs + flags &= ~(128 | 512); + + // register the stream with the filesystem + var stream = FS.createStream({ + node: node, + path: FS.getPath(node), // we want the absolute path to the node + flags: flags, + seekable: true, + position: 0, + stream_ops: node.stream_ops, + // used by the file family libc calls (fopen, fwrite, ferror, etc.) + ungotten: [], + error: false + }, fd_start, fd_end); + // call the new stream's open function + if (stream.stream_ops.open) { + stream.stream_ops.open(stream); + } + if (Module['logReadFiles'] && !(flags & 1)) { + if (!FS.readFiles) FS.readFiles = {}; + if (!(path in FS.readFiles)) { + FS.readFiles[path] = 1; + console.log("FS.trackingDelegate error on read file: " + path); + } + } + try { + if (FS.trackingDelegate['onOpenFile']) { + var trackingFlags = 0; + if ((flags & 2097155) !== 1) { + trackingFlags |= FS.tracking.openFlags.READ; + } + if ((flags & 2097155) !== 0) { + trackingFlags |= FS.tracking.openFlags.WRITE; + } + FS.trackingDelegate['onOpenFile'](path, trackingFlags); + } + } catch(e) { + console.log("FS.trackingDelegate['onOpenFile']('"+path+"', flags) threw an exception: " + e.message); + } + return stream; + },close:function (stream) { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + 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:function (stream) { + return stream.fd === null; + },llseek:function (stream, offset, whence) { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if (!stream.seekable || !stream.stream_ops.llseek) { + throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); + } + stream.position = stream.stream_ops.llseek(stream, offset, whence); + stream.ungotten = []; + return stream.position; + },read:function (stream, buffer, offset, length, position) { + if (length < 0 || position < 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if ((stream.flags & 2097155) === 1) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if (FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.EISDIR); + } + if (!stream.stream_ops.read) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + var seeking = typeof position !== 'undefined'; + if (!seeking) { + position = stream.position; + } else if (!stream.seekable) { + throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); + } + var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position); + if (!seeking) stream.position += bytesRead; + return bytesRead; + },write:function (stream, buffer, offset, length, position, canOwn) { + if (length < 0 || position < 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if (FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.EISDIR); + } + if (!stream.stream_ops.write) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + if (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(ERRNO_CODES.ESPIPE); + } + var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn); + if (!seeking) stream.position += bytesWritten; + try { + if (stream.path && FS.trackingDelegate['onWriteToFile']) FS.trackingDelegate['onWriteToFile'](stream.path); + } catch(e) { + console.log("FS.trackingDelegate['onWriteToFile']('"+path+"') threw an exception: " + e.message); + } + return bytesWritten; + },allocate:function (stream, offset, length) { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if (offset < 0 || length <= 0) { + throw new FS.ErrnoError(ERRNO_CODES.EINVAL); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(ERRNO_CODES.EBADF); + } + if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.ENODEV); + } + if (!stream.stream_ops.allocate) { + throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP); + } + stream.stream_ops.allocate(stream, offset, length); + },mmap:function (stream, buffer, offset, length, position, prot, flags) { + // TODO if PROT is PROT_WRITE, make sure we have write access + if ((stream.flags & 2097155) === 1) { + throw new FS.ErrnoError(ERRNO_CODES.EACCES); + } + if (!stream.stream_ops.mmap) { + throw new FS.ErrnoError(ERRNO_CODES.ENODEV); + } + return stream.stream_ops.mmap(stream, buffer, offset, length, position, prot, flags); + },msync:function (stream, buffer, offset, length, mmapFlags) { + if (!stream || !stream.stream_ops.msync) { + return 0; + } + return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags); + },munmap:function (stream) { + return 0; + },ioctl:function (stream, cmd, arg) { + if (!stream.stream_ops.ioctl) { + throw new FS.ErrnoError(ERRNO_CODES.ENOTTY); + } + return stream.stream_ops.ioctl(stream, cmd, arg); + },readFile:function (path, opts) { + opts = opts || {}; + opts.flags = opts.flags || 'r'; + opts.encoding = opts.encoding || 'binary'; + if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') { + throw new Error('Invalid encoding type "' + opts.encoding + '"'); + } + var ret; + 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') { + ret = UTF8ArrayToString(buf, 0); + } else if (opts.encoding === 'binary') { + ret = buf; + } + FS.close(stream); + return ret; + },writeFile:function (path, data, opts) { + opts = opts || {}; + opts.flags = opts.flags || 'w'; + var stream = FS.open(path, opts.flags, opts.mode); + if (typeof data === 'string') { + var buf = new Uint8Array(lengthBytesUTF8(data)+1); + var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length); + FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn); + } else if (ArrayBuffer.isView(data)) { + FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn); + } else { + throw new Error('Unsupported data type'); + } + FS.close(stream); + },cwd:function () { + return FS.currentPath; + },chdir:function (path) { + var lookup = FS.lookupPath(path, { follow: true }); + if (lookup.node === null) { + throw new FS.ErrnoError(ERRNO_CODES.ENOENT); + } + if (!FS.isDir(lookup.node.mode)) { + throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR); + } + var err = FS.nodePermissions(lookup.node, 'x'); + if (err) { + throw new FS.ErrnoError(err); + } + FS.currentPath = lookup.path; + },createDefaultDirectories:function () { + FS.mkdir('/tmp'); + FS.mkdir('/home'); + FS.mkdir('/home/web_user'); + },createDefaultDevices:function () { + // create /dev + FS.mkdir('/dev'); + // setup /dev/null + FS.registerDevice(FS.makedev(1, 3), { + read: function() { return 0; }, + write: function(stream, buffer, offset, length, pos) { return length; } + }); + FS.mkdev('/dev/null', FS.makedev(1, 3)); + // setup /dev/tty and /dev/tty1 + // stderr needs to print output using Module['printErr'] + // 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 + var random_device; + if (typeof crypto !== 'undefined') { + // for modern web browsers + var randomBuffer = new Uint8Array(1); + random_device = function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; }; + } else if (ENVIRONMENT_IS_NODE) { + // for nodejs + random_device = function() { return require('crypto')['randomBytes'](1)[0]; }; + } else { + // default for ES5 platforms + random_device = function() { abort("random_device"); /*Math.random() is not safe for random number generation, so this fallback random_device implementation aborts... see kripken/emscripten/pull/7096 */ }; + } + FS.createDevice('/dev', 'random', random_device); + FS.createDevice('/dev', 'urandom', random_device); + // 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:function () { + // 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'); + FS.mkdir('/proc/self'); + FS.mkdir('/proc/self/fd'); + FS.mount({ + mount: function() { + var node = FS.createNode('/proc/self', 'fd', 16384 | 511 /* 0777 */, 73); + node.node_ops = { + lookup: function(parent, name) { + var fd = +name; + var stream = FS.getStream(fd); + if (!stream) throw new FS.ErrnoError(ERRNO_CODES.EBADF); + var ret = { + parent: null, + mount: { mountpoint: 'fake' }, + node_ops: { readlink: function() { return stream.path } } + }; + ret.parent = ret; // make it look like a simple root node + return ret; + } + }; + return node; + } + }, {}, '/proc/self/fd'); + },createStandardStreams:function () { + // 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 (Module['stdin']) { + FS.createDevice('/dev', 'stdin', Module['stdin']); + } else { + FS.symlink('/dev/tty', '/dev/stdin'); + } + if (Module['stdout']) { + FS.createDevice('/dev', 'stdout', null, Module['stdout']); + } else { + FS.symlink('/dev/tty', '/dev/stdout'); + } + if (Module['stderr']) { + FS.createDevice('/dev', 'stderr', null, Module['stderr']); + } else { + FS.symlink('/dev/tty1', '/dev/stderr'); + } + + // open default streams for the stdin, stdout and stderr devices + var stdin = FS.open('/dev/stdin', 'r'); + assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')'); + + var stdout = FS.open('/dev/stdout', 'w'); + assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')'); + + var stderr = FS.open('/dev/stderr', 'w'); + assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')'); + },ensureErrnoError:function () { + if (FS.ErrnoError) return; + FS.ErrnoError = function ErrnoError(errno, node) { + this.node = node; + this.setErrno = function(errno) { + this.errno = errno; + for (var key in ERRNO_CODES) { + if (ERRNO_CODES[key] === errno) { + this.code = key; + break; + } + } + }; + this.setErrno(errno); + this.message = ERRNO_MESSAGES[errno]; + // Node.js compatibility: assigning on this.stack fails on Node 4 (but fixed on Node 8) + if (this.stack) Object.defineProperty(this, "stack", { value: (new Error).stack, writable: true }); + }; + FS.ErrnoError.prototype = new Error(); + FS.ErrnoError.prototype.constructor = FS.ErrnoError; + // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info) + [ERRNO_CODES.ENOENT].forEach(function(code) { + FS.genericErrors[code] = new FS.ErrnoError(code); + FS.genericErrors[code].stack = ''; + }); + },staticInit:function () { + FS.ensureErrnoError(); + + FS.nameTable = new Array(4096); + + FS.mount(MEMFS, {}, '/'); + + FS.createDefaultDirectories(); + FS.createDefaultDevices(); + FS.createSpecialDirectories(); + + FS.filesystems = { + 'MEMFS': MEMFS, + 'IDBFS': IDBFS, + 'NODEFS': NODEFS, + 'WORKERFS': WORKERFS, + }; + },init:function (input, output, error) { + assert(!FS.init.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.init.initialized = true; + + FS.ensureErrnoError(); + + // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here + Module['stdin'] = input || Module['stdin']; + Module['stdout'] = output || Module['stdout']; + Module['stderr'] = error || Module['stderr']; + + FS.createStandardStreams(); + },quit:function () { + FS.init.initialized = false; + // force-flush all streams, so we get musl std streams printed out + var fflush = Module['_fflush']; + if (fflush) fflush(0); + // close all of our streams + for (var i = 0; i < FS.streams.length; i++) { + var stream = FS.streams[i]; + if (!stream) { + continue; + } + FS.close(stream); + } + },getMode:function (canRead, canWrite) { + var mode = 0; + if (canRead) mode |= 292 | 73; + if (canWrite) mode |= 146; + return mode; + },joinPath:function (parts, forceRelative) { + var path = PATH.join.apply(null, parts); + if (forceRelative && path[0] == '/') path = path.substr(1); + return path; + },absolutePath:function (relative, base) { + return PATH.resolve(base, relative); + },standardizePath:function (path) { + return PATH.normalize(path); + },findObject:function (path, dontResolveLastLink) { + var ret = FS.analyzePath(path, dontResolveLastLink); + if (ret.exists) { + return ret.object; + } else { + ___setErrNo(ret.error); + return null; + } + },analyzePath:function (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; + },createFolder:function (parent, name, canRead, canWrite) { + var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name); + var mode = FS.getMode(canRead, canWrite); + return FS.mkdir(path, mode); + },createPath:function (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) { + // ignore EEXIST + } + parent = current; + } + return current; + },createFile:function (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:function (parent, name, data, canRead, canWrite, canOwn) { + var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name) : parent; + var mode = FS.getMode(canRead, canWrite); + var node = FS.create(path, mode); + if (data) { + if (typeof data === 'string') { + var arr = new Array(data.length); + for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i); + data = arr; + } + // make sure we can write to the file + FS.chmod(node, mode | 146); + var stream = FS.open(node, 'w'); + FS.write(stream, data, 0, data.length, 0, canOwn); + FS.close(stream); + FS.chmod(node, mode); + } + return node; + },createDevice:function (parent, name, input, output) { + var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name); + var mode = FS.getMode(!!input, !!output); + if (!FS.createDevice.major) 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: function(stream) { + stream.seekable = false; + }, + close: function(stream) { + // flush any pending line data + if (output && output.buffer && output.buffer.length) { + output(10); + } + }, + read: function(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(ERRNO_CODES.EIO); + } + if (result === undefined && bytesRead === 0) { + throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); + } + if (result === null || result === undefined) break; + bytesRead++; + buffer[offset+i] = result; + } + if (bytesRead) { + stream.node.timestamp = Date.now(); + } + return bytesRead; + }, + write: function(stream, buffer, offset, length, pos) { + for (var i = 0; i < length; i++) { + try { + output(buffer[offset+i]); + } catch (e) { + throw new FS.ErrnoError(ERRNO_CODES.EIO); + } + } + if (length) { + stream.node.timestamp = Date.now(); + } + return i; + } + }); + return FS.mkdev(path, mode, dev); + },createLink:function (parent, name, target, canRead, canWrite) { + var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name); + return FS.symlink(target, path); + },forceLoadFile:function (obj) { + if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true; + var success = true; + if (typeof XMLHttpRequest !== 'undefined') { + throw new Error("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 if (Module['read']) { + // Command-line. + try { + // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as + // read() will try to parse UTF8. + obj.contents = intArrayFromString(Module['read'](obj.url), true); + obj.usedBytes = obj.contents.length; + } catch (e) { + success = false; + } + } else { + throw new Error('Cannot load without read() or XMLHttpRequest.'); + } + if (!success) ___setErrNo(ERRNO_CODES.EIO); + return success; + },createLazyFile:function (parent, name, url, canRead, canWrite) { + // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse. + function LazyUint8Array() { + this.lengthKnown = false; + this.chunks = []; // Loaded chunks. Index is the chunk number + } + LazyUint8Array.prototype.get = function LazyUint8Array_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]; + } + LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) { + this.getter = getter; + } + LazyUint8Array.prototype.cacheLength = function LazyUint8Array_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)) throw new Error("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 = (function(from, to) { + if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!"); + if (to > datalength-1) throw new Error("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. + if (typeof Uint8Array != 'undefined') 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)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status); + if (xhr.response !== undefined) { + return new Uint8Array(xhr.response || []); + } else { + return intArrayFromString(xhr.responseText || '', true); + } + }); + var lazyArray = this; + lazyArray.setDataGetter(function(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") throw new Error("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; + console.log("LazyFiles on gzip forces download of the whole file when length is accessed"); + } + + this._length = datalength; + this._chunkSize = chunkSize; + this.lengthKnown = true; + } + if (typeof XMLHttpRequest !== 'undefined') { + if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc'; + var lazyArray = new LazyUint8Array(); + Object.defineProperties(lazyArray, { + length: { + get: function() { + if(!this.lengthKnown) { + this.cacheLength(); + } + return this._length; + } + }, + chunkSize: { + get: function() { + if(!this.lengthKnown) { + this.cacheLength(); + } + return this._chunkSize; + } + } + }); + + 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 = {}; + var keys = Object.keys(node.stream_ops); + keys.forEach(function(key) { + var fn = node.stream_ops[key]; + stream_ops[key] = function forceLoadLazyFile() { + if (!FS.forceLoadFile(node)) { + throw new FS.ErrnoError(ERRNO_CODES.EIO); + } + return fn.apply(null, arguments); + }; + }); + // use a custom read function + stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) { + if (!FS.forceLoadFile(node)) { + throw new FS.ErrnoError(ERRNO_CODES.EIO); + } + 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; + }; + node.stream_ops = stream_ops; + return node; + },createPreloadedFile:function (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) { + Browser.init(); // XXX perhaps this method should move onto Browser? + // 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.resolve(PATH.join2(parent, name)) : parent; + var dep = getUniqueRunDependency('cp ' + fullname); // might have several active requests for the same fullname + function processData(byteArray) { + function finish(byteArray) { + if (preFinish) preFinish(); + if (!dontCreateFile) { + FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn); + } + if (onload) onload(); + removeRunDependency(dep); + } + var handled = false; + Module['preloadPlugins'].forEach(function(plugin) { + if (handled) return; + if (plugin['canHandle'](fullname)) { + plugin['handle'](byteArray, fullname, finish, function() { + if (onerror) onerror(); + removeRunDependency(dep); + }); + handled = true; + } + }); + if (!handled) finish(byteArray); + } + addRunDependency(dep); + if (typeof url == 'string') { + Browser.asyncLoad(url, function(byteArray) { + processData(byteArray); + }, onerror); + } else { + processData(url); + } + },indexedDB:function () { + return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB; + },DB_NAME:function () { + return 'EM_FS_' + window.location.pathname; + },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function (paths, onload, onerror) { + onload = onload || function(){}; + onerror = onerror || function(){}; + var indexedDB = FS.indexedDB(); + try { + var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION); + } catch (e) { + return onerror(e); + } + openRequest.onupgradeneeded = function openRequest_onupgradeneeded() { + console.log('creating db'); + var db = openRequest.result; + db.createObjectStore(FS.DB_STORE_NAME); + }; + openRequest.onsuccess = function openRequest_onsuccess() { + var db = openRequest.result; + var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite'); + var files = transaction.objectStore(FS.DB_STORE_NAME); + var ok = 0, fail = 0, total = paths.length; + function finish() { + if (fail == 0) onload(); else onerror(); + } + paths.forEach(function(path) { + var putRequest = files.put(FS.analyzePath(path).object.contents, path); + putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (ok + fail == total) finish() }; + putRequest.onerror = function putRequest_onerror() { fail++; if (ok + fail == total) finish() }; + }); + transaction.onerror = onerror; + }; + openRequest.onerror = onerror; + },loadFilesFromDB:function (paths, onload, onerror) { + onload = onload || function(){}; + onerror = onerror || function(){}; + var indexedDB = FS.indexedDB(); + try { + var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION); + } catch (e) { + return onerror(e); + } + openRequest.onupgradeneeded = onerror; // no database to load from + openRequest.onsuccess = function openRequest_onsuccess() { + var db = openRequest.result; + try { + var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly'); + } catch(e) { + onerror(e); + return; + } + var files = transaction.objectStore(FS.DB_STORE_NAME); + var ok = 0, fail = 0, total = paths.length; + function finish() { + if (fail == 0) onload(); else onerror(); + } + paths.forEach(function(path) { + var getRequest = files.get(path); + getRequest.onsuccess = function getRequest_onsuccess() { + if (FS.analyzePath(path).exists) { + FS.unlink(path); + } + FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true); + ok++; + if (ok + fail == total) finish(); + }; + getRequest.onerror = function getRequest_onerror() { fail++; if (ok + fail == total) finish() }; + }); + transaction.onerror = onerror; + }; + openRequest.onerror = onerror; + }}; + + + + function _emscripten_set_main_loop_timing(mode, value) { + Browser.mainLoop.timingMode = mode; + Browser.mainLoop.timingValue = value; + + if (!Browser.mainLoop.func) { + return 1; // Return non-zero on failure, can't set timing mode when there is no main loop. + } + + if (mode == 0 /*EM_TIMING_SETTIMEOUT*/) { + Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_setTimeout() { + var timeUntilNextTick = Math.max(0, Browser.mainLoop.tickStartTime + value - _emscripten_get_now())|0; + setTimeout(Browser.mainLoop.runner, timeUntilNextTick); // doing this each time means that on exception, we stop + }; + Browser.mainLoop.method = 'timeout'; + } else if (mode == 1 /*EM_TIMING_RAF*/) { + Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_rAF() { + Browser.requestAnimationFrame(Browser.mainLoop.runner); + }; + Browser.mainLoop.method = 'rAF'; + } else if (mode == 2 /*EM_TIMING_SETIMMEDIATE*/) { + if (typeof setImmediate === 'undefined') { + // 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'; + function Browser_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", Browser_setImmediate_messageHandler, true); + setImmediate = function Browser_emulated_setImmediate(func) { + setImmediates.push(func); + if (ENVIRONMENT_IS_WORKER) { + if (Module['setImmediates'] === undefined) 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. + } + } + Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_setImmediate() { + setImmediate(Browser.mainLoop.runner); + }; + Browser.mainLoop.method = 'immediate'; + } + return 0; + } + + function _emscripten_get_now() { abort() }function _emscripten_set_main_loop(func, fps, simulateInfiniteLoop, arg, noSetTiming) { + Module['noExitRuntime'] = true; + + assert(!Browser.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.'); + + Browser.mainLoop.func = func; + Browser.mainLoop.arg = arg; + + var browserIterationFunc; + if (typeof arg !== 'undefined') { + browserIterationFunc = function() { + Module['dynCall_vi'](func, arg); + }; + } else { + browserIterationFunc = function() { + Module['dynCall_v'](func); + }; + } + + var thisMainLoopId = Browser.mainLoop.currentlyRunningMainloop; + + Browser.mainLoop.runner = function Browser_mainLoop_runner() { + if (ABORT) return; + if (Browser.mainLoop.queue.length > 0) { + var start = Date.now(); + var blocker = Browser.mainLoop.queue.shift(); + blocker.func(blocker.arg); + if (Browser.mainLoop.remainingBlockers) { + var remaining = Browser.mainLoop.remainingBlockers; + var next = remaining%1 == 0 ? remaining-1 : Math.floor(remaining); + if (blocker.counted) { + Browser.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 + Browser.mainLoop.remainingBlockers = (8*remaining + next)/9; + } + } + console.log('main loop blocker "' + blocker.name + '" took ' + (Date.now() - start) + ' ms'); //, left: ' + Browser.mainLoop.remainingBlockers); + Browser.mainLoop.updateStatus(); + + // catches pause/resume main loop from blocker execution + if (thisMainLoopId < Browser.mainLoop.currentlyRunningMainloop) return; + + setTimeout(Browser.mainLoop.runner, 0); + return; + } + + // catch pauses from non-main loop sources + if (thisMainLoopId < Browser.mainLoop.currentlyRunningMainloop) return; + + // Implement very basic swap interval control + Browser.mainLoop.currentFrameNumber = Browser.mainLoop.currentFrameNumber + 1 | 0; + if (Browser.mainLoop.timingMode == 1/*EM_TIMING_RAF*/ && Browser.mainLoop.timingValue > 1 && Browser.mainLoop.currentFrameNumber % Browser.mainLoop.timingValue != 0) { + // Not the scheduled time to render this frame - skip. + Browser.mainLoop.scheduler(); + return; + } else if (Browser.mainLoop.timingMode == 0/*EM_TIMING_SETTIMEOUT*/) { + Browser.mainLoop.tickStartTime = _emscripten_get_now(); + } + + // Signal GL rendering layer that processing of a new frame is about to start. This helps it optimize + // VBO double-buffering and reduce GPU stalls. + + + + if (Browser.mainLoop.method === 'timeout' && Module.ctx) { + err('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!'); + Browser.mainLoop.method = ''; // just warn once per call to set main loop + } + + Browser.mainLoop.runIter(browserIterationFunc); + + + // catch pauses from the main loop itself + if (thisMainLoopId < Browser.mainLoop.currentlyRunningMainloop) return; + + // Queue new audio data. This is important to be right after the main loop invocation, so that we will immediately be able + // to queue the newest produced audio samples. + // TODO: Consider adding pre- and post- rAF callbacks so that GL.newRenderingFrameStarted() and SDL.audio.queueNewAudioData() + // do not need to be hardcoded into this function, but can be more generic. + if (typeof SDL === 'object' && SDL.audio && SDL.audio.queueNewAudioData) SDL.audio.queueNewAudioData(); + + Browser.mainLoop.scheduler(); + } + + if (!noSetTiming) { + if (fps && fps > 0) _emscripten_set_main_loop_timing(0/*EM_TIMING_SETTIMEOUT*/, 1000.0 / fps); + else _emscripten_set_main_loop_timing(1/*EM_TIMING_RAF*/, 1); // Do rAF by rendering each frame (no decimating) + + Browser.mainLoop.scheduler(); + } + + if (simulateInfiniteLoop) { + throw 'SimulateInfiniteLoop'; + } + }var Browser={mainLoop:{scheduler:null,method:"",currentlyRunningMainloop:0,func:null,arg:0,timingMode:0,timingValue:0,currentFrameNumber:0,queue:[],pause:function () { + Browser.mainLoop.scheduler = null; + Browser.mainLoop.currentlyRunningMainloop++; // Incrementing this signals the previous main loop that it's now become old, and it must return. + },resume:function () { + Browser.mainLoop.currentlyRunningMainloop++; + var timingMode = Browser.mainLoop.timingMode; + var timingValue = Browser.mainLoop.timingValue; + var func = Browser.mainLoop.func; + Browser.mainLoop.func = null; + _emscripten_set_main_loop(func, 0, false, Browser.mainLoop.arg, true /* do not set timing and call scheduler, we will do it on the next lines */); + _emscripten_set_main_loop_timing(timingMode, timingValue); + Browser.mainLoop.scheduler(); + },updateStatus:function () { + if (Module['setStatus']) { + var message = Module['statusMessage'] || 'Please wait...'; + var remaining = Browser.mainLoop.remainingBlockers; + var expected = Browser.mainLoop.expectedBlockers; + if (remaining) { + if (remaining < expected) { + Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')'); + } else { + Module['setStatus'](message); + } + } else { + Module['setStatus'](''); + } + } + },runIter:function (func) { + if (ABORT) return; + if (Module['preMainLoop']) { + var preRet = Module['preMainLoop'](); + if (preRet === false) { + return; // |return false| skips a frame + } + } + try { + func(); + } catch (e) { + if (e instanceof ExitStatus) { + return; + } else { + if (e && typeof e === 'object' && e.stack) err('exception thrown: ' + [e, e.stack]); + throw e; + } + } + if (Module['postMainLoop']) Module['postMainLoop'](); + }},isFullscreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function () { + if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers + + if (Browser.initted) return; + Browser.initted = true; + + try { + new Blob(); + Browser.hasBlobConstructor = true; + } catch(e) { + Browser.hasBlobConstructor = false; + console.log("warning: no blob constructor, cannot create blobs with mimetypes"); + } + Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null)); + Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined; + if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined') { + console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available."); + Module.noImageDecoding = true; + } + + // Support for plugins that can process preloaded files. You can add more of these to + // your app by creating and appending to Module.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'] = function imagePlugin_canHandle(name) { + return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name); + }; + imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onload, onerror) { + var b = null; + if (Browser.hasBlobConstructor) { + try { + 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) }); + } + } catch(e) { + warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder'); + } + } + if (!b) { + var bb = new Browser.BlobBuilder(); + bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range + b = bb.getBlob(); + } + var url = Browser.URLObject.createObjectURL(b); + var img = new Image(); + img.onload = function img_onload() { + assert(img.complete, 'Image ' + name + ' could not be decoded'); + var canvas = document.createElement('canvas'); + canvas.width = img.width; + canvas.height = img.height; + var ctx = canvas.getContext('2d'); + ctx.drawImage(img, 0, 0); + Module["preloadedImages"][name] = canvas; + Browser.URLObject.revokeObjectURL(url); + if (onload) onload(byteArray); + }; + img.onerror = function img_onerror(event) { + console.log('Image ' + url + ' could not be decoded'); + if (onerror) onerror(); + }; + img.src = url; + }; + Module['preloadPlugins'].push(imagePlugin); + + var audioPlugin = {}; + audioPlugin['canHandle'] = function audioPlugin_canHandle(name) { + return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 }; + }; + audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onload, onerror) { + var done = false; + function finish(audio) { + if (done) return; + done = true; + Module["preloadedAudios"][name] = audio; + if (onload) onload(byteArray); + } + function fail() { + if (done) return; + done = true; + Module["preloadedAudios"][name] = new Audio(); // empty shim + if (onerror) onerror(); + } + if (Browser.hasBlobConstructor) { + try { + var b = new Blob([byteArray], { type: Browser.getMimetype(name) }); + } catch(e) { + return fail(); + } + var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this! + var audio = new Audio(); + audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926 + audio.onerror = function audio_onerror(event) { + if (done) return; + console.log('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.substr(-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 + Browser.safeSetTimeout(function() { + finish(audio); // try to use it even though it is not necessarily ready to play + }, 10000); + } else { + return fail(); + } + }; + Module['preloadPlugins'].push(audioPlugin); + + + // Canvas event setup + + function pointerLockChange() { + Browser.pointerLock = document['pointerLockElement'] === Module['canvas'] || + document['mozPointerLockElement'] === Module['canvas'] || + document['webkitPointerLockElement'] === Module['canvas'] || + document['msPointerLockElement'] === Module['canvas']; + } + var canvas = Module['canvas']; + if (canvas) { + // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module + // Module['forcedAspectRatio'] = 4 / 3; + + canvas.requestPointerLock = canvas['requestPointerLock'] || + canvas['mozRequestPointerLock'] || + canvas['webkitRequestPointerLock'] || + canvas['msRequestPointerLock'] || + function(){}; + canvas.exitPointerLock = document['exitPointerLock'] || + document['mozExitPointerLock'] || + document['webkitExitPointerLock'] || + document['msExitPointerLock'] || + function(){}; // no-op if function does not exist + canvas.exitPointerLock = canvas.exitPointerLock.bind(document); + + document.addEventListener('pointerlockchange', pointerLockChange, false); + document.addEventListener('mozpointerlockchange', pointerLockChange, false); + document.addEventListener('webkitpointerlockchange', pointerLockChange, false); + document.addEventListener('mspointerlockchange', pointerLockChange, false); + + if (Module['elementPointerLock']) { + canvas.addEventListener("click", function(ev) { + if (!Browser.pointerLock && Module['canvas'].requestPointerLock) { + Module['canvas'].requestPointerLock(); + ev.preventDefault(); + } + }, false); + } + } + },createContext:function (canvas, useWebGL, setInModule, webGLContextAttributes) { + if (useWebGL && Module.ctx && canvas == Module.canvas) 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 + }; + + if (webGLContextAttributes) { + for (var attribute in webGLContextAttributes) { + contextAttributes[attribute] = webGLContextAttributes[attribute]; + } + } + + 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); + Module.useWebGL = useWebGL; + Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() }); + Browser.init(); + } + return ctx; + },destroyContext:function (canvas, useWebGL, setInModule) {},fullscreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullscreen:function (lockPointer, resizeCanvas, vrDevice) { + Browser.lockPointer = lockPointer; + Browser.resizeCanvas = resizeCanvas; + Browser.vrDevice = vrDevice; + if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = true; + if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas = false; + if (typeof Browser.vrDevice === 'undefined') Browser.vrDevice = null; + + var canvas = Module['canvas']; + function fullscreenChange() { + Browser.isFullscreen = false; + var canvasContainer = canvas.parentNode; + if ((document['fullscreenElement'] || document['mozFullScreenElement'] || + document['msFullscreenElement'] || document['webkitFullscreenElement'] || + document['webkitCurrentFullScreenElement']) === canvasContainer) { + canvas.exitFullscreen = document['exitFullscreen'] || + document['cancelFullScreen'] || + document['mozCancelFullScreen'] || + document['msExitFullscreen'] || + document['webkitCancelFullScreen'] || + function() {}; + canvas.exitFullscreen = canvas.exitFullscreen.bind(document); + 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); + } + } + if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullscreen); + if (Module['onFullscreen']) 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'] ? function() { canvasContainer['webkitRequestFullscreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null) || + (canvasContainer['webkitRequestFullScreen'] ? function() { canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null); + + if (vrDevice) { + canvasContainer.requestFullscreen({ vrDisplay: vrDevice }); + } else { + canvasContainer.requestFullscreen(); + } + },requestFullScreen:function (lockPointer, resizeCanvas, vrDevice) { + err('Browser.requestFullScreen() is deprecated. Please call Browser.requestFullscreen instead.'); + Browser.requestFullScreen = function(lockPointer, resizeCanvas, vrDevice) { + return Browser.requestFullscreen(lockPointer, resizeCanvas, vrDevice); + } + return Browser.requestFullscreen(lockPointer, resizeCanvas, vrDevice); + },nextRAF:0,fakeRequestAnimationFrame:function (func) { + // try to keep 60fps between calls to here + var now = Date.now(); + if (Browser.nextRAF === 0) { + Browser.nextRAF = now + 1000/60; + } else { + while (now + 2 >= Browser.nextRAF) { // fudge a little, to avoid timer jitter causing us to do lots of delay:0 + Browser.nextRAF += 1000/60; + } + } + var delay = Math.max(Browser.nextRAF - now, 0); + setTimeout(func, delay); + },requestAnimationFrame:function requestAnimationFrame(func) { + if (typeof window === 'undefined') { // Provide fallback to setTimeout if window is undefined (e.g. in Node.js) + Browser.fakeRequestAnimationFrame(func); + } else { + if (!window.requestAnimationFrame) { + window.requestAnimationFrame = window['requestAnimationFrame'] || + window['mozRequestAnimationFrame'] || + window['webkitRequestAnimationFrame'] || + window['msRequestAnimationFrame'] || + window['oRequestAnimationFrame'] || + Browser.fakeRequestAnimationFrame; + } + window.requestAnimationFrame(func); + } + },safeCallback:function (func) { + return function() { + if (!ABORT) return func.apply(null, arguments); + }; + },allowAsyncCallbacks:true,queuedAsyncCallbacks:[],pauseAsyncCallbacks:function () { + Browser.allowAsyncCallbacks = false; + },resumeAsyncCallbacks:function () { // marks future callbacks as ok to execute, and synchronously runs any remaining ones right now + Browser.allowAsyncCallbacks = true; + if (Browser.queuedAsyncCallbacks.length > 0) { + var callbacks = Browser.queuedAsyncCallbacks; + Browser.queuedAsyncCallbacks = []; + callbacks.forEach(function(func) { + func(); + }); + } + },safeRequestAnimationFrame:function (func) { + return Browser.requestAnimationFrame(function() { + if (ABORT) return; + if (Browser.allowAsyncCallbacks) { + func(); + } else { + Browser.queuedAsyncCallbacks.push(func); + } + }); + },safeSetTimeout:function (func, timeout) { + Module['noExitRuntime'] = true; + return setTimeout(function() { + if (ABORT) return; + if (Browser.allowAsyncCallbacks) { + func(); + } else { + Browser.queuedAsyncCallbacks.push(func); + } + }, timeout); + },safeSetInterval:function (func, timeout) { + Module['noExitRuntime'] = true; + return setInterval(function() { + if (ABORT) return; + if (Browser.allowAsyncCallbacks) { + func(); + } // drop it on the floor otherwise, next interval will kick in + }, timeout); + },getMimetype:function (name) { + return { + 'jpg': 'image/jpeg', + 'jpeg': 'image/jpeg', + 'png': 'image/png', + 'bmp': 'image/bmp', + 'ogg': 'audio/ogg', + 'wav': 'audio/wav', + 'mp3': 'audio/mpeg' + }[name.substr(name.lastIndexOf('.')+1)]; + },getUserMedia:function (func) { + if(!window.getUserMedia) { + window.getUserMedia = navigator['getUserMedia'] || + navigator['mozGetUserMedia']; + } + window.getUserMedia(func); + },getMovementX:function (event) { + return event['movementX'] || + event['mozMovementX'] || + event['webkitMovementX'] || + 0; + },getMovementY:function (event) { + return event['movementY'] || + event['mozMovementY'] || + event['webkitMovementY'] || + 0; + },getMouseWheelDelta:function (event) { + var delta = 0; + switch (event.type) { + case 'DOMMouseScroll': + delta = event.detail; + break; + case 'mousewheel': + delta = event.wheelDelta; + break; + case 'wheel': + delta = event['deltaY']; + break; + default: + throw 'unrecognized mouse wheel event: ' + event.type; + } + return delta; + },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,touches:{},lastTouches:{},calculateMouseEvent:function (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); + } + + // check if SDL is available + if (typeof SDL != "undefined") { + Browser.mouseX = SDL.mouseX + Browser.mouseMovementX; + Browser.mouseY = SDL.mouseY + Browser.mouseMovementY; + } else { + // just add the mouse delta to the current absolut mouse position + // FIXME: ideally this should be clamped against the canvas size and zero + Browser.mouseX += Browser.mouseMovementX; + Browser.mouseY += Browser.mouseMovementY; + } + } else { + // Otherwise, calculate the movement based on the changes + // in the coordinates. + var rect = Module["canvas"].getBoundingClientRect(); + var cw = Module["canvas"].width; + var ch = Module["canvas"].height; + + // 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 (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 adjustedX = touch.pageX - (scrollX + rect.left); + var adjustedY = touch.pageY - (scrollY + rect.top); + + adjustedX = adjustedX * (cw / rect.width); + adjustedY = adjustedY * (ch / rect.height); + + var coords = { x: adjustedX, y: adjustedY }; + + 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]; + if (!last) last = coords; + Browser.lastTouches[touch.identifier] = last; + Browser.touches[touch.identifier] = coords; + } + return; + } + + var x = event.pageX - (scrollX + rect.left); + var y = event.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. + x = x * (cw / rect.width); + y = y * (ch / rect.height); + + Browser.mouseMovementX = x - Browser.mouseX; + Browser.mouseMovementY = y - Browser.mouseY; + Browser.mouseX = x; + Browser.mouseY = y; + } + },asyncLoad:function (url, onload, onerror, noRunDep) { + var dep = !noRunDep ? getUniqueRunDependency('al ' + url) : ''; + Module['readAsync'](url, function(arrayBuffer) { + assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).'); + onload(new Uint8Array(arrayBuffer)); + if (dep) removeRunDependency(dep); + }, function(event) { + if (onerror) { + onerror(); + } else { + throw 'Loading data file "' + url + '" failed.'; + } + }); + if (dep) addRunDependency(dep); + },resizeListeners:[],updateResizeListeners:function () { + var canvas = Module['canvas']; + Browser.resizeListeners.forEach(function(listener) { + listener(canvas.width, canvas.height); + }); + },setCanvasSize:function (width, height, noUpdates) { + var canvas = Module['canvas']; + Browser.updateCanvasDimensions(canvas, width, height); + if (!noUpdates) Browser.updateResizeListeners(); + },windowedWidth:0,windowedHeight:0,setFullscreenCanvasSize:function () { + // 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(Module['canvas']); + Browser.updateResizeListeners(); + },setWindowedCanvasSize:function () { + // 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(Module['canvas']); + Browser.updateResizeListeners(); + },updateCanvasDimensions:function (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'] && Module['forcedAspectRatio'] > 0) { + if (w/h < Module['forcedAspectRatio']) { + w = Math.round(h * Module['forcedAspectRatio']); + } else { + h = Math.round(w / Module['forcedAspectRatio']); + } + } + if (((document['fullscreenElement'] || document['mozFullScreenElement'] || + document['msFullscreenElement'] || document['webkitFullscreenElement'] || + document['webkitCurrentFullScreenElement']) === 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"); + } + } + } + },wgetRequests:{},nextWgetRequestHandle:0,getNextWgetRequestHandle:function () { + var handle = Browser.nextWgetRequestHandle; + Browser.nextWgetRequestHandle++; + return handle; + }}; + + function _SDL_GetTicks() { + return (Date.now() - SDL.startTime)|0; + } + + function _SDL_LockSurface(surf) { + var surfData = SDL.surfaces[surf]; + + surfData.locked++; + if (surfData.locked > 1) return 0; + + if (!surfData.buffer) { + surfData.buffer = _malloc(surfData.width * surfData.height * 4); + HEAP32[(((surf)+(20))>>2)]=surfData.buffer; + } + + // Mark in C/C++-accessible SDL structure + // SDL_Surface has the following fields: Uint32 flags, SDL_PixelFormat *format; int w, h; Uint16 pitch; void *pixels; ... + // So we have fields all of the same size, and 5 of them before us. + // TODO: Use macros like in library.js + HEAP32[(((surf)+(20))>>2)]=surfData.buffer; + + if (surf == SDL.screen && Module.screenIsReadOnly && surfData.image) return 0; + + if (SDL.defaults.discardOnLock) { + if (!surfData.image) { + surfData.image = surfData.ctx.createImageData(surfData.width, surfData.height); + } + if (!SDL.defaults.opaqueFrontBuffer) return; + } else { + surfData.image = surfData.ctx.getImageData(0, 0, surfData.width, surfData.height); + } + + // Emulate desktop behavior and kill alpha values on the locked surface. (very costly!) Set SDL.defaults.opaqueFrontBuffer = false + // if you don't want this. + if (surf == SDL.screen && SDL.defaults.opaqueFrontBuffer) { + var data = surfData.image.data; + var num = data.length; + for (var i = 0; i < num/4; i++) { + data[i*4+3] = 255; // opacity, as canvases blend alpha + } + } + + if (SDL.defaults.copyOnLock && !SDL.defaults.discardOnLock) { + // Copy pixel data to somewhere accessible to 'C/C++' + if (surfData.isFlagSet(0x00200000 /* SDL_HWPALETTE */)) { + // If this is neaded then + // we should compact the data from 32bpp to 8bpp index. + // I think best way to implement this is use + // additional colorMap hash (color->index). + // Something like this: + // + // var size = surfData.width * surfData.height; + // var data = ''; + // for (var i = 0; i>0)]=index; + // } + throw 'CopyOnLock is not supported for SDL_LockSurface with SDL_HWPALETTE flag set' + new Error().stack; + } else { + HEAPU8.set(surfData.image.data, surfData.buffer); + } + } + + return 0; + }var SDL={defaults:{width:320,height:200,copyOnLock:true,discardOnLock:false,opaqueFrontBuffer:true},version:null,surfaces:{},canvasPool:[],events:[],fonts:[null],audios:[null],rwops:[null],music:{audio:null,volume:1},mixerFrequency:22050,mixerFormat:32784,mixerNumChannels:2,mixerChunkSize:1024,channelMinimumNumber:0,GL:false,glAttributes:{0:3,1:3,2:2,3:0,4:0,5:1,6:16,7:0,8:0,9:0,10:0,11:0,12:0,13:0,14:0,15:1,16:0,17:0,18:0},keyboardState:null,keyboardMap:{},canRequestFullscreen:false,isRequestingFullscreen:false,textInput:false,startTime:null,initFlags:0,buttonState:0,modState:0,DOMButtons:[0,0,0],DOMEventToSDLEvent:{},TOUCH_DEFAULT_ID:0,eventHandler:null,eventHandlerContext:null,eventHandlerTemp:0,keyCodes:{16:1249,17:1248,18:1250,20:1081,33:1099,34:1102,35:1101,36:1098,37:1104,38:1106,39:1103,40:1105,44:316,45:1097,46:127,91:1251,93:1125,96:1122,97:1113,98:1114,99:1115,100:1116,101:1117,102:1118,103:1119,104:1120,105:1121,106:1109,107:1111,109:1110,110:1123,111:1108,112:1082,113:1083,114:1084,115:1085,116:1086,117:1087,118:1088,119:1089,120:1090,121:1091,122:1092,123:1093,124:1128,125:1129,126:1130,127:1131,128:1132,129:1133,130:1134,131:1135,132:1136,133:1137,134:1138,135:1139,144:1107,160:94,161:33,162:34,163:35,164:36,165:37,166:38,167:95,168:40,169:41,170:42,171:43,172:124,173:45,174:123,175:125,176:126,181:127,182:129,183:128,188:44,190:46,191:47,192:96,219:91,220:92,221:93,222:39,224:1251},scanCodes:{8:42,9:43,13:40,27:41,32:44,35:204,39:53,44:54,46:55,47:56,48:39,49:30,50:31,51:32,52:33,53:34,54:35,55:36,56:37,57:38,58:203,59:51,61:46,91:47,92:49,93:48,96:52,97:4,98:5,99:6,100:7,101:8,102:9,103:10,104:11,105:12,106:13,107:14,108:15,109:16,110:17,111:18,112:19,113:20,114:21,115:22,116:23,117:24,118:25,119:26,120:27,121:28,122:29,127:76,305:224,308:226,316:70},loadRect:function (rect) { + return { + x: HEAP32[((rect + 0)>>2)], + y: HEAP32[((rect + 4)>>2)], + w: HEAP32[((rect + 8)>>2)], + h: HEAP32[((rect + 12)>>2)] + }; + },updateRect:function (rect, r) { + HEAP32[((rect)>>2)]=r.x; + HEAP32[(((rect)+(4))>>2)]=r.y; + HEAP32[(((rect)+(8))>>2)]=r.w; + HEAP32[(((rect)+(12))>>2)]=r.h; + },intersectionOfRects:function (first, second) { + var leftX = Math.max(first.x, second.x); + var leftY = Math.max(first.y, second.y); + var rightX = Math.min(first.x + first.w, second.x + second.w); + var rightY = Math.min(first.y + first.h, second.y + second.h); + + return { + x: leftX, + y: leftY, + w: Math.max(leftX, rightX) - leftX, + h: Math.max(leftY, rightY) - leftY + } + },checkPixelFormat:function (fmt) { + },loadColorToCSSRGB:function (color) { + var rgba = HEAP32[((color)>>2)]; + return 'rgb(' + (rgba&255) + ',' + ((rgba >> 8)&255) + ',' + ((rgba >> 16)&255) + ')'; + },loadColorToCSSRGBA:function (color) { + var rgba = HEAP32[((color)>>2)]; + return 'rgba(' + (rgba&255) + ',' + ((rgba >> 8)&255) + ',' + ((rgba >> 16)&255) + ',' + (((rgba >> 24)&255)/255) + ')'; + },translateColorToCSSRGBA:function (rgba) { + return 'rgba(' + (rgba&0xff) + ',' + (rgba>>8 & 0xff) + ',' + (rgba>>16 & 0xff) + ',' + (rgba>>>24)/0xff + ')'; + },translateRGBAToCSSRGBA:function (r, g, b, a) { + return 'rgba(' + (r&0xff) + ',' + (g&0xff) + ',' + (b&0xff) + ',' + (a&0xff)/255 + ')'; + },translateRGBAToColor:function (r, g, b, a) { + return r | g << 8 | b << 16 | a << 24; + },makeSurface:function (width, height, flags, usePageCanvas, source, rmask, gmask, bmask, amask) { + flags = flags || 0; + var is_SDL_HWSURFACE = flags & 0x00000001; + var is_SDL_HWPALETTE = flags & 0x00200000; + var is_SDL_OPENGL = flags & 0x04000000; + + var surf = _malloc(60); + var pixelFormat = _malloc(44); + //surface with SDL_HWPALETTE flag is 8bpp surface (1 byte) + var bpp = is_SDL_HWPALETTE ? 1 : 4; + var buffer = 0; + + // preemptively initialize this for software surfaces, + // otherwise it will be lazily initialized inside of SDL_LockSurface + if (!is_SDL_HWSURFACE && !is_SDL_OPENGL) { + buffer = _malloc(width * height * 4); + } + + HEAP32[((surf)>>2)]=flags; + HEAP32[(((surf)+(4))>>2)]=pixelFormat; + HEAP32[(((surf)+(8))>>2)]=width; + HEAP32[(((surf)+(12))>>2)]=height; + HEAP32[(((surf)+(16))>>2)]=width * bpp; // assuming RGBA or indexed for now, + // since that is what ImageData gives us in browsers + HEAP32[(((surf)+(20))>>2)]=buffer; + + HEAP32[(((surf)+(36))>>2)]=0; + HEAP32[(((surf)+(40))>>2)]=0; + HEAP32[(((surf)+(44))>>2)]=Module["canvas"].width; + HEAP32[(((surf)+(48))>>2)]=Module["canvas"].height; + + HEAP32[(((surf)+(56))>>2)]=1; + + HEAP32[((pixelFormat)>>2)]=-2042224636; + HEAP32[(((pixelFormat)+(4))>>2)]=0;// TODO + HEAP8[(((pixelFormat)+(8))>>0)]=bpp * 8; + HEAP8[(((pixelFormat)+(9))>>0)]=bpp; + + HEAP32[(((pixelFormat)+(12))>>2)]=rmask || 0x000000ff; + HEAP32[(((pixelFormat)+(16))>>2)]=gmask || 0x0000ff00; + HEAP32[(((pixelFormat)+(20))>>2)]=bmask || 0x00ff0000; + HEAP32[(((pixelFormat)+(24))>>2)]=amask || 0xff000000; + + // Decide if we want to use WebGL or not + SDL.GL = SDL.GL || is_SDL_OPENGL; + var canvas; + if (!usePageCanvas) { + if (SDL.canvasPool.length > 0) { + canvas = SDL.canvasPool.pop(); + } else { + canvas = document.createElement('canvas'); + } + canvas.width = width; + canvas.height = height; + } else { + canvas = Module['canvas']; + } + + var webGLContextAttributes = { + antialias: ((SDL.glAttributes[13 /*SDL_GL_MULTISAMPLEBUFFERS*/] != 0) && (SDL.glAttributes[14 /*SDL_GL_MULTISAMPLESAMPLES*/] > 1)), + depth: (SDL.glAttributes[6 /*SDL_GL_DEPTH_SIZE*/] > 0), + stencil: (SDL.glAttributes[7 /*SDL_GL_STENCIL_SIZE*/] > 0), + alpha: (SDL.glAttributes[3 /*SDL_GL_ALPHA_SIZE*/] > 0) + }; + + var ctx = Browser.createContext(canvas, is_SDL_OPENGL, usePageCanvas, webGLContextAttributes); + + SDL.surfaces[surf] = { + width: width, + height: height, + canvas: canvas, + ctx: ctx, + surf: surf, + buffer: buffer, + pixelFormat: pixelFormat, + alpha: 255, + flags: flags, + locked: 0, + usePageCanvas: usePageCanvas, + source: source, + + isFlagSet: function(flag) { + return flags & flag; + } + }; + + return surf; + },copyIndexedColorData:function (surfData, rX, rY, rW, rH) { + // HWPALETTE works with palette + // setted by SDL_SetColors + if (!surfData.colors) { + return; + } + + var fullWidth = Module['canvas'].width; + var fullHeight = Module['canvas'].height; + + var startX = rX || 0; + var startY = rY || 0; + var endX = (rW || (fullWidth - startX)) + startX; + var endY = (rH || (fullHeight - startY)) + startY; + + var buffer = surfData.buffer; + + if (!surfData.image.data32) { + surfData.image.data32 = new Uint32Array(surfData.image.data.buffer); + } + var data32 = surfData.image.data32; + + var colors32 = surfData.colors32; + + for (var y = startY; y < endY; ++y) { + var base = y * fullWidth; + for (var x = startX; x < endX; ++x) { + data32[base + x] = colors32[HEAPU8[((buffer + base + x)>>0)]]; + } + } + },freeSurface:function (surf) { + var refcountPointer = surf + 56; + var refcount = HEAP32[((refcountPointer)>>2)]; + if (refcount > 1) { + HEAP32[((refcountPointer)>>2)]=refcount - 1; + return; + } + + var info = SDL.surfaces[surf]; + if (!info.usePageCanvas && info.canvas) SDL.canvasPool.push(info.canvas); + if (info.buffer) _free(info.buffer); + _free(info.pixelFormat); + _free(surf); + SDL.surfaces[surf] = null; + + if (surf === SDL.screen) { + SDL.screen = null; + } + },blitSurface:function (src, srcrect, dst, dstrect, scale) { + var srcData = SDL.surfaces[src]; + var dstData = SDL.surfaces[dst]; + var sr, dr; + if (srcrect) { + sr = SDL.loadRect(srcrect); + } else { + sr = { x: 0, y: 0, w: srcData.width, h: srcData.height }; + } + if (dstrect) { + dr = SDL.loadRect(dstrect); + } else { + dr = { x: 0, y: 0, w: srcData.width, h: srcData.height }; + } + if (dstData.clipRect) { + var widthScale = (!scale || sr.w === 0) ? 1 : sr.w / dr.w; + var heightScale = (!scale || sr.h === 0) ? 1 : sr.h / dr.h; + + dr = SDL.intersectionOfRects(dstData.clipRect, dr); + + sr.w = dr.w * widthScale; + sr.h = dr.h * heightScale; + + if (dstrect) { + SDL.updateRect(dstrect, dr); + } + } + var blitw, blith; + if (scale) { + blitw = dr.w; blith = dr.h; + } else { + blitw = sr.w; blith = sr.h; + } + if (sr.w === 0 || sr.h === 0 || blitw === 0 || blith === 0) { + return 0; + } + var oldAlpha = dstData.ctx.globalAlpha; + dstData.ctx.globalAlpha = srcData.alpha/255; + dstData.ctx.drawImage(srcData.canvas, sr.x, sr.y, sr.w, sr.h, dr.x, dr.y, blitw, blith); + dstData.ctx.globalAlpha = oldAlpha; + if (dst != SDL.screen) { + // XXX As in IMG_Load, for compatibility we write out |pixels| + warnOnce('WARNING: copying canvas data to memory for compatibility'); + _SDL_LockSurface(dst); + dstData.locked--; // The surface is not actually locked in this hack + } + return 0; + },downFingers:{},savedKeydown:null,receiveEvent:function (event) { + function unpressAllPressedKeys() { + // Un-press all pressed keys: TODO + for (var code in SDL.keyboardMap) { + SDL.events.push({ + type: 'keyup', + keyCode: SDL.keyboardMap[code] + }); + } + }; + switch(event.type) { + case 'touchstart': case 'touchmove': { + event.preventDefault(); + + var touches = []; + + // Clear out any touchstart events that we've already processed + if (event.type === 'touchstart') { + for (var i = 0; i < event.touches.length; i++) { + var touch = event.touches[i]; + if (SDL.downFingers[touch.identifier] != true) { + SDL.downFingers[touch.identifier] = true; + touches.push(touch); + } + } + } else { + touches = event.touches; + } + + var firstTouch = touches[0]; + if (firstTouch) { + if (event.type == 'touchstart') { + SDL.DOMButtons[0] = 1; + } + var mouseEventType; + switch(event.type) { + case 'touchstart': mouseEventType = 'mousedown'; break; + case 'touchmove': mouseEventType = 'mousemove'; break; + } + var mouseEvent = { + type: mouseEventType, + button: 0, + pageX: firstTouch.clientX, + pageY: firstTouch.clientY + }; + SDL.events.push(mouseEvent); + } + + for (var i = 0; i < touches.length; i++) { + var touch = touches[i]; + SDL.events.push({ + type: event.type, + touch: touch + }); + }; + break; + } + case 'touchend': { + event.preventDefault(); + + // Remove the entry in the SDL.downFingers hash + // because the finger is no longer down. + for(var i = 0; i < event.changedTouches.length; i++) { + var touch = event.changedTouches[i]; + if (SDL.downFingers[touch.identifier] === true) { + delete SDL.downFingers[touch.identifier]; + } + } + + var mouseEvent = { + type: 'mouseup', + button: 0, + pageX: event.changedTouches[0].clientX, + pageY: event.changedTouches[0].clientY + }; + SDL.DOMButtons[0] = 0; + SDL.events.push(mouseEvent); + + for (var i = 0; i < event.changedTouches.length; i++) { + var touch = event.changedTouches[i]; + SDL.events.push({ + type: 'touchend', + touch: touch + }); + }; + break; + } + case 'DOMMouseScroll': case 'mousewheel': case 'wheel': + var delta = -Browser.getMouseWheelDelta(event); // Flip the wheel direction to translate from browser wheel direction (+:down) to SDL direction (+:up) + 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. + + // Simulate old-style SDL events representing mouse wheel input as buttons + var button = delta > 0 ? 3 /*SDL_BUTTON_WHEELUP-1*/ : 4 /*SDL_BUTTON_WHEELDOWN-1*/; // Subtract one since JS->C marshalling is defined to add one back. + SDL.events.push({ type: 'mousedown', button: button, pageX: event.pageX, pageY: event.pageY }); + SDL.events.push({ type: 'mouseup', button: button, pageX: event.pageX, pageY: event.pageY }); + + // Pass a delta motion event. + SDL.events.push({ type: 'wheel', deltaX: 0, deltaY: delta }); + event.preventDefault(); // If we don't prevent this, then 'wheel' event will be sent again by the browser as 'DOMMouseScroll' and we will receive this same event the second time. + break; + case 'mousemove': + if (SDL.DOMButtons[0] === 1) { + SDL.events.push({ + type: 'touchmove', + touch: { + identifier: 0, + deviceID: -1, + pageX: event.pageX, + pageY: event.pageY + } + }); + } + if (Browser.pointerLock) { + // workaround for firefox bug 750111 + if ('mozMovementX' in event) { + event['movementX'] = event['mozMovementX']; + event['movementY'] = event['mozMovementY']; + } + // workaround for Firefox bug 782777 + if (event['movementX'] == 0 && event['movementY'] == 0) { + // ignore a mousemove event if it doesn't contain any movement info + // (without pointer lock, we infer movement from pageX/pageY, so this check is unnecessary) + event.preventDefault(); + return; + } + } + // fall through + case 'keydown': case 'keyup': case 'keypress': case 'mousedown': case 'mouseup': + // If we preventDefault on keydown events, the subsequent keypress events + // won't fire. However, it's fine (and in some cases necessary) to + // preventDefault for keys that don't generate a character. Otherwise, + // preventDefault is the right thing to do in general. + if (event.type !== 'keydown' || (!SDL.unicode && !SDL.textInput) || (event.keyCode === 8 /* backspace */ || event.keyCode === 9 /* tab */)) { + event.preventDefault(); + } + + if (event.type == 'mousedown') { + SDL.DOMButtons[event.button] = 1; + SDL.events.push({ + type: 'touchstart', + touch: { + identifier: 0, + deviceID: -1, + pageX: event.pageX, + pageY: event.pageY + } + }); + } else if (event.type == 'mouseup') { + // ignore extra ups, can happen if we leave the canvas while pressing down, then return, + // since we add a mouseup in that case + if (!SDL.DOMButtons[event.button]) { + return; + } + + SDL.events.push({ + type: 'touchend', + touch: { + identifier: 0, + deviceID: -1, + pageX: event.pageX, + pageY: event.pageY + } + }); + SDL.DOMButtons[event.button] = 0; + } + + // We can only request fullscreen as the result of user input. + // Due to this limitation, we toggle a boolean on keydown which + // SDL_WM_ToggleFullScreen will check and subsequently set another + // flag indicating for us to request fullscreen on the following + // keyup. This isn't perfect, but it enables SDL_WM_ToggleFullScreen + // to work as the result of a keypress (which is an extremely + // common use case). + if (event.type === 'keydown' || event.type === 'mousedown') { + SDL.canRequestFullscreen = true; + } else if (event.type === 'keyup' || event.type === 'mouseup') { + if (SDL.isRequestingFullscreen) { + Module['requestFullscreen'](/*lockPointer=*/true, /*resizeCanvas=*/true); + SDL.isRequestingFullscreen = false; + } + SDL.canRequestFullscreen = false; + } + + // SDL expects a unicode character to be passed to its keydown events. + // Unfortunately, the browser APIs only provide a charCode property on + // keypress events, so we must backfill in keydown events with their + // subsequent keypress event's charCode. + if (event.type === 'keypress' && SDL.savedKeydown) { + // charCode is read-only + SDL.savedKeydown.keypressCharCode = event.charCode; + SDL.savedKeydown = null; + } else if (event.type === 'keydown') { + SDL.savedKeydown = event; + } + + // Don't push keypress events unless SDL_StartTextInput has been called. + if (event.type !== 'keypress' || SDL.textInput) { + SDL.events.push(event); + } + break; + case 'mouseout': + // Un-press all pressed mouse buttons, because we might miss the release outside of the canvas + for (var i = 0; i < 3; i++) { + if (SDL.DOMButtons[i]) { + SDL.events.push({ + type: 'mouseup', + button: i, + pageX: event.pageX, + pageY: event.pageY + }); + SDL.DOMButtons[i] = 0; + } + } + event.preventDefault(); + break; + case 'focus': + SDL.events.push(event); + event.preventDefault(); + break; + case 'blur': + SDL.events.push(event); + unpressAllPressedKeys(); + event.preventDefault(); + break; + case 'visibilitychange': + SDL.events.push({ + type: 'visibilitychange', + visible: !document.hidden + }); + unpressAllPressedKeys(); + event.preventDefault(); + break; + case 'unload': + if (Browser.mainLoop.runner) { + SDL.events.push(event); + // Force-run a main event loop, since otherwise this event will never be caught! + Browser.mainLoop.runner(); + } + return; + case 'resize': + SDL.events.push(event); + // manually triggered resize event doesn't have a preventDefault member + if (event.preventDefault) { + event.preventDefault(); + } + break; + } + if (SDL.events.length >= 10000) { + err('SDL event queue full, dropping events'); + SDL.events = SDL.events.slice(0, 10000); + } + // If we have a handler installed, this will push the events to the app + // instead of the app polling for them. + SDL.flushEventsToHandler(); + return; + },lookupKeyCodeForEvent:function (event) { + var code = event.keyCode; + if (code >= 65 && code <= 90) { + code += 32; // make lowercase for SDL + } else { + code = SDL.keyCodes[event.keyCode] || event.keyCode; + // If this is one of the modifier keys (224 | 1<<10 - 227 | 1<<10), and the event specifies that it is + // a right key, add 4 to get the right key SDL key code. + if (event.location === KeyboardEvent.DOM_KEY_LOCATION_RIGHT && code >= (224 | 1<<10) && code <= (227 | 1<<10)) { + code += 4; + } + } + return code; + },handleEvent:function (event) { + if (event.handled) return; + event.handled = true; + + switch (event.type) { + case 'touchstart': case 'touchend': case 'touchmove': { + Browser.calculateMouseEvent(event); + break; + } + case 'keydown': case 'keyup': { + var down = event.type === 'keydown'; + var code = SDL.lookupKeyCodeForEvent(event); + HEAP8[(((SDL.keyboardState)+(code))>>0)]=down; + // TODO: lmeta, rmeta, numlock, capslock, KMOD_MODE, KMOD_RESERVED + SDL.modState = (HEAP8[(((SDL.keyboardState)+(1248))>>0)] ? 0x0040 : 0) | // KMOD_LCTRL + (HEAP8[(((SDL.keyboardState)+(1249))>>0)] ? 0x0001 : 0) | // KMOD_LSHIFT + (HEAP8[(((SDL.keyboardState)+(1250))>>0)] ? 0x0100 : 0) | // KMOD_LALT + (HEAP8[(((SDL.keyboardState)+(1252))>>0)] ? 0x0080 : 0) | // KMOD_RCTRL + (HEAP8[(((SDL.keyboardState)+(1253))>>0)] ? 0x0002 : 0) | // KMOD_RSHIFT + (HEAP8[(((SDL.keyboardState)+(1254))>>0)] ? 0x0200 : 0); // KMOD_RALT + if (down) { + SDL.keyboardMap[code] = event.keyCode; // save the DOM input, which we can use to unpress it during blur + } else { + delete SDL.keyboardMap[code]; + } + + break; + } + case 'mousedown': case 'mouseup': + if (event.type == 'mousedown') { + // SDL_BUTTON(x) is defined as (1 << ((x)-1)). SDL buttons are 1-3, + // and DOM buttons are 0-2, so this means that the below formula is + // correct. + SDL.buttonState |= 1 << event.button; + } else if (event.type == 'mouseup') { + SDL.buttonState &= ~(1 << event.button); + } + // fall through + case 'mousemove': { + Browser.calculateMouseEvent(event); + break; + } + } + },flushEventsToHandler:function () { + if (!SDL.eventHandler) return; + + while (SDL.pollEvent(SDL.eventHandlerTemp)) { + Module['dynCall_iii'](SDL.eventHandler, SDL.eventHandlerContext, SDL.eventHandlerTemp); + } + },pollEvent:function (ptr) { + if (SDL.initFlags & 0x200 && SDL.joystickEventState) { + // If SDL_INIT_JOYSTICK was supplied AND the joystick system is configured + // to automatically query for events, query for joystick events. + SDL.queryJoysticks(); + } + if (ptr) { + while (SDL.events.length > 0) { + if (SDL.makeCEvent(SDL.events.shift(), ptr) !== false) return 1; + } + return 0; + } else { + // XXX: somewhat risky in that we do not check if the event is real or not (makeCEvent returns false) if no pointer supplied + return SDL.events.length > 0; + } + },makeCEvent:function (event, ptr) { + if (typeof event === 'number') { + // This is a pointer to a copy of a native C event that was SDL_PushEvent'ed + _memcpy(ptr, event, 28); + _free(event); // the copy is no longer needed + return; + } + + SDL.handleEvent(event); + + switch (event.type) { + case 'keydown': case 'keyup': { + var down = event.type === 'keydown'; + //out('Received key event: ' + event.keyCode); + var key = SDL.lookupKeyCodeForEvent(event); + var scan; + if (key >= 1024) { + scan = key - 1024; + } else { + scan = SDL.scanCodes[key] || key; + } + + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP8[(((ptr)+(8))>>0)]=down ? 1 : 0; + HEAP8[(((ptr)+(9))>>0)]=0; // TODO + HEAP32[(((ptr)+(12))>>2)]=scan; + HEAP32[(((ptr)+(16))>>2)]=key; + HEAP16[(((ptr)+(20))>>1)]=SDL.modState; + // some non-character keys (e.g. backspace and tab) won't have keypressCharCode set, fill in with the keyCode. + HEAP32[(((ptr)+(24))>>2)]=event.keypressCharCode || key; + + break; + } + case 'keypress': { + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + // Not filling in windowID for now + var cStr = intArrayFromString(String.fromCharCode(event.charCode)); + for (var i = 0; i < cStr.length; ++i) { + HEAP8[(((ptr)+(8 + i))>>0)]=cStr[i]; + } + break; + } + case 'mousedown': case 'mouseup': case 'mousemove': { + if (event.type != 'mousemove') { + var down = event.type === 'mousedown'; + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=0; + HEAP32[(((ptr)+(8))>>2)]=0; + HEAP32[(((ptr)+(12))>>2)]=0; + HEAP8[(((ptr)+(16))>>0)]=event.button+1; // DOM buttons are 0-2, SDL 1-3 + HEAP8[(((ptr)+(17))>>0)]=down ? 1 : 0; + HEAP32[(((ptr)+(20))>>2)]=Browser.mouseX; + HEAP32[(((ptr)+(24))>>2)]=Browser.mouseY; + } else { + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=0; + HEAP32[(((ptr)+(8))>>2)]=0; + HEAP32[(((ptr)+(12))>>2)]=0; + HEAP32[(((ptr)+(16))>>2)]=SDL.buttonState; + HEAP32[(((ptr)+(20))>>2)]=Browser.mouseX; + HEAP32[(((ptr)+(24))>>2)]=Browser.mouseY; + HEAP32[(((ptr)+(28))>>2)]=Browser.mouseMovementX; + HEAP32[(((ptr)+(32))>>2)]=Browser.mouseMovementY; + } + break; + } + case 'wheel': { + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(16))>>2)]=event.deltaX; + HEAP32[(((ptr)+(20))>>2)]=event.deltaY; + break; + } + case 'touchstart': case 'touchend': case 'touchmove': { + var touch = event.touch; + if (!Browser.touches[touch.identifier]) break; + var w = Module['canvas'].width; + var h = Module['canvas'].height; + var x = Browser.touches[touch.identifier].x / w; + var y = Browser.touches[touch.identifier].y / h; + var lx = Browser.lastTouches[touch.identifier].x / w; + var ly = Browser.lastTouches[touch.identifier].y / h; + var dx = x - lx; + var dy = y - ly; + if (touch['deviceID'] === undefined) touch.deviceID = SDL.TOUCH_DEFAULT_ID; + if (dx === 0 && dy === 0 && event.type === 'touchmove') return false; // don't send these if nothing happened + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=_SDL_GetTicks(); + (tempI64 = [touch.deviceID>>>0,(tempDouble=touch.deviceID,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((ptr)+(8))>>2)]=tempI64[0],HEAP32[(((ptr)+(12))>>2)]=tempI64[1]); + (tempI64 = [touch.identifier>>>0,(tempDouble=touch.identifier,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((ptr)+(16))>>2)]=tempI64[0],HEAP32[(((ptr)+(20))>>2)]=tempI64[1]); + HEAPF32[(((ptr)+(24))>>2)]=x; + HEAPF32[(((ptr)+(28))>>2)]=y; + HEAPF32[(((ptr)+(32))>>2)]=dx; + HEAPF32[(((ptr)+(36))>>2)]=dy; + if (touch.force !== undefined) { + HEAPF32[(((ptr)+(40))>>2)]=touch.force; + } else { // No pressure data, send a digital 0/1 pressure. + HEAPF32[(((ptr)+(40))>>2)]=event.type == "touchend" ? 0 : 1; + } + break; + } + case 'unload': { + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + break; + } + case 'resize': { + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=event.w; + HEAP32[(((ptr)+(8))>>2)]=event.h; + break; + } + case 'joystick_button_up': case 'joystick_button_down': { + var state = event.type === 'joystick_button_up' ? 0 : 1; + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP8[(((ptr)+(4))>>0)]=event.index; + HEAP8[(((ptr)+(5))>>0)]=event.button; + HEAP8[(((ptr)+(6))>>0)]=state; + break; + } + case 'joystick_axis_motion': { + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP8[(((ptr)+(4))>>0)]=event.index; + HEAP8[(((ptr)+(5))>>0)]=event.axis; + HEAP32[(((ptr)+(8))>>2)]=SDL.joystickAxisValueConversion(event.value); + break; + } + case 'focus': { + var SDL_WINDOWEVENT_FOCUS_GAINED = 12 /* SDL_WINDOWEVENT_FOCUS_GAINED */; + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=0; + HEAP8[(((ptr)+(8))>>0)]=SDL_WINDOWEVENT_FOCUS_GAINED; + break; + } + case 'blur': { + var SDL_WINDOWEVENT_FOCUS_LOST = 13 /* SDL_WINDOWEVENT_FOCUS_LOST */; + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=0; + HEAP8[(((ptr)+(8))>>0)]=SDL_WINDOWEVENT_FOCUS_LOST; + break; + } + case 'visibilitychange': { + var SDL_WINDOWEVENT_SHOWN = 1 /* SDL_WINDOWEVENT_SHOWN */; + var SDL_WINDOWEVENT_HIDDEN = 2 /* SDL_WINDOWEVENT_HIDDEN */; + var visibilityEventID = event.visible ? SDL_WINDOWEVENT_SHOWN : SDL_WINDOWEVENT_HIDDEN; + HEAP32[((ptr)>>2)]=SDL.DOMEventToSDLEvent[event.type]; + HEAP32[(((ptr)+(4))>>2)]=0; + HEAP8[(((ptr)+(8))>>0)]=visibilityEventID; + break; + } + default: throw 'Unhandled SDL event: ' + event.type; + } + },makeFontString:function (height, fontName) { + if (fontName.charAt(0) != "'" && fontName.charAt(0) != '"') { + // https://developer.mozilla.org/ru/docs/Web/CSS/font-family + // Font family names containing whitespace should be quoted. + // BTW, quote all font names is easier than searching spaces + fontName = '"' + fontName + '"'; + } + return height + 'px ' + fontName + ', serif'; + },estimateTextWidth:function (fontData, text) { + var h = fontData.size; + var fontString = SDL.makeFontString(h, fontData.name); + var tempCtx = SDL.ttfContext; + tempCtx.save(); + tempCtx.font = fontString; + var ret = tempCtx.measureText(text).width | 0; + tempCtx.restore(); + return ret; + },allocateChannels:function (num) { // called from Mix_AllocateChannels and init + if (SDL.numChannels && SDL.numChannels >= num && num != 0) return; + SDL.numChannels = num; + SDL.channels = []; + for (var i = 0; i < num; i++) { + SDL.channels[i] = { + audio: null, + volume: 1.0 + }; + } + },setGetVolume:function (info, volume) { + if (!info) return 0; + var ret = info.volume * 128; // MIX_MAX_VOLUME + if (volume != -1) { + info.volume = Math.min(Math.max(volume, 0), 128) / 128; + if (info.audio) { + try { + info.audio.volume = info.volume; // For