ref: d9aff4f21696c01a13b4a4086de57d74fd3cde4b
parent: d6f22738160011bec3a5317d7542d8d756a14a38
author: Chris Jarabek <chris.jarabek@gmail.com>
date: Tue Jan 21 11:24:44 EST 2014
Working on creating dist file w/ grunt.
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
win/*.sdf
*.user
*.o
+node_modules
--- /dev/null
+++ b/js/Gruntfile.js
@@ -1,0 +1,41 @@
+module.exports = function(grunt) {+
+ // Project configuration.
+ grunt.initConfig({+
+ //Doesn't seem to work atm. Clobbers global vars needed in test script.
+ uglify: {+ minlibs: {+ options: {+ mangle: false,
+ },
+ files: {+ 'dist/h264bsd.min.js': ['h264bsd_asm.js',' sylvester.js', 'glUtils.js', 'util.js', 'canvas.js', 'h264bsd.js']
+ }
+ }
+ },
+
+ concat: {+ pack: {+ src: ['h264bsd_asm.js',' sylvester.js', 'glUtils.js', 'util.js', 'canvas.js', 'h264bsd.js'],
+ dest: 'dist/h264bsd.min.js'
+ }
+ },
+
+ //grunt-clean
+ clean: {+ dist: 'dist/',
+ options: {+ force:true
+ }
+ }
+ });
+
+ grunt.loadNpmTasks('grunt-contrib-clean');+ grunt.loadNpmTasks('grunt-contrib-uglify');+ grunt.loadNpmTasks('grunt-contrib-concat');+
+
+ // Default task.
+ grunt.registerTask('default', ['clean', 'concat']);+};
--- a/js/canvas.js
+++ b/js/canvas.js
@@ -468,7 +468,6 @@
this.gl.enableVertexAttribArray(this.textureCoordAttribute);
},
onInitTextures: function () {- console.log("creatingTextures: size: " + this.size);this.YTexture = new Texture(this.gl, this.size);
this.UTexture = new Texture(this.gl, this.size.getHalfSize());
this.VTexture = new Texture(this.gl, this.size.getHalfSize());
--- /dev/null
+++ b/js/dist/h264bsd.min.js
@@ -1,0 +1,5516 @@
+// Note: For maximum-speed code, see "Optimizing Code" on the Emscripten wiki, https://github.com/kripken/emscripten/wiki/Optimizing-Code
+// Note: Some Emscripten settings may limit the speed of the generated code.
+// The Module object: Our interface to the outside world. We import
+// and export values on it, and do the work to get that through
+// closure compiler if necessary. 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 do an eval in order to handle the closure compiler
+// case, where this code here is minified but Module was defined
+// elsewhere (e.g. case 4 above). We also need to check if Module
+// already exists (e.g. case 3 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;
+if (!Module) Module = eval('(function() { try { return Module || {} } catch(e) { return {} } })()');+// 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 = {};+for (var key in Module) {+ if (Module.hasOwnProperty(key)) {+ moduleOverrides[key] = Module[key];
+ }
+}
+// The environment setup code below is customized to use Module.
+// *** Environment setup code ***
+var ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function';
+var ENVIRONMENT_IS_WEB = typeof window === 'object';
+var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
+var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
+if (ENVIRONMENT_IS_NODE) {+ // Expose functionality in the same simple way that the shells work
+ // Note that we pollute the global namespace here, otherwise we break in node
+ Module['print'] = function print(x) {+ process['stdout'].write(x + '\n');
+ };
+ Module['printErr'] = function printErr(x) {+ process['stderr'].write(x + '\n');
+ };
+ var nodeFS = require('fs');+ var nodePath = require('path');+ Module['read'] = function read(filename, binary) {+ filename = nodePath['normalize'](filename);
+ var ret = nodeFS['readFileSync'](filename);
+ // The path is absolute if the normalized version is the same as the resolved.
+ if (!ret && filename != nodePath['resolve'](filename)) {+ filename = path.join(__dirname, '..', 'src', filename);
+ ret = nodeFS['readFileSync'](filename);
+ }
+ if (ret && !binary) ret = ret.toString();
+ return ret;
+ };
+ Module['readBinary'] = function readBinary(filename) { return Module['read'](filename, true) };+ Module['load'] = function load(f) {+ globalEval(read(f));
+ };
+ Module['arguments'] = process['argv'].slice(2);
+ module['exports'] = Module;
+}
+else if (ENVIRONMENT_IS_SHELL) {+ Module['print'] = print;
+ if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm
+ if (typeof read != 'undefined') {+ Module['read'] = read;
+ } else {+ Module['read'] = function read() { throw 'no read() available (jsc?)' };+ }
+ Module['readBinary'] = function readBinary(f) {+ return read(f, 'binary');
+ };
+ if (typeof scriptArgs != 'undefined') {+ Module['arguments'] = scriptArgs;
+ } else if (typeof arguments != 'undefined') {+ Module['arguments'] = arguments;
+ }
+ this['Module'] = Module;
+ eval("if (typeof gc === 'function' && gc.toString().indexOf('[native code]') > 0) var gc = undefined"); // wipe out the SpiderMonkey shell 'gc' function, which can confuse closure (uses it as a minified name, and it is then initted to a non-falsey value unexpectedly)+}
+else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {+ Module['read'] = function read(url) {+ var xhr = new XMLHttpRequest();
+ xhr.open('GET', url, false);+ xhr.send(null);
+ return xhr.responseText;
+ };
+ if (typeof arguments != 'undefined') {+ Module['arguments'] = arguments;
+ }
+ if (typeof console !== 'undefined') {+ Module['print'] = function print(x) {+ console.log(x);
+ };
+ Module['printErr'] = function printErr(x) {+ console.log(x);
+ };
+ } else {+ // Probably a worker, and without console.log. We can do very little here...
+ var TRY_USE_DUMP = false;
+ Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {+ dump(x);
+ }) : (function(x) {+ // self.postMessage(x); // enable this if you want stdout to be sent as messages
+ }));
+ }
+ if (ENVIRONMENT_IS_WEB) {+ this['Module'] = Module;
+ } else {+ Module['load'] = importScripts;
+ }
+}
+else {+ // Unreachable because SHELL is dependant on the others
+ throw 'Unknown runtime environment. Where are we?';
+}
+function globalEval(x) {+ eval.call(null, x);
+}
+if (!Module['load'] == 'undefined' && Module['read']) {+ Module['load'] = function load(f) {+ globalEval(Module['read'](f));
+ };
+}
+if (!Module['print']) {+ Module['print'] = function(){};+}
+if (!Module['printErr']) {+ Module['printErr'] = Module['print'];
+}
+if (!Module['arguments']) {+ Module['arguments'] = [];
+}
+// *** Environment setup code ***
+// Closure helpers
+Module.print = Module['print'];
+Module.printErr = Module['printErr'];
+// Callbacks
+Module['preRun'] = [];
+Module['postRun'] = [];
+// Merge back in the overrides
+for (var key in moduleOverrides) {+ if (moduleOverrides.hasOwnProperty(key)) {+ Module[key] = moduleOverrides[key];
+ }
+}
+// === Auto-generated preamble library stuff ===
+//========================================
+// Runtime code shared with compiler
+//========================================
+var Runtime = {+ stackSave: function () {+ return STACKTOP;
+ },
+ stackRestore: function (stackTop) {+ STACKTOP = stackTop;
+ },
+ forceAlign: function (target, quantum) {+ quantum = quantum || 4;
+ if (quantum == 1) return target;
+ if (isNumber(target) && isNumber(quantum)) {+ return Math.ceil(target/quantum)*quantum;
+ } else if (isNumber(quantum) && isPowerOfTwo(quantum)) {+ return '(((' +target + ')+' + (quantum-1) + ')&' + -quantum + ')';+ }
+ return 'Math.ceil((' + target + ')/' + quantum + ')*' + quantum;+ },
+ isNumberType: function (type) {+ return type in Runtime.INT_TYPES || type in Runtime.FLOAT_TYPES;
+ },
+ isPointerType: function isPointerType(type) {+ return type[type.length-1] == '*';
+},
+ isStructType: function isStructType(type) {+ if (isPointerType(type)) return false;
+ if (isArrayType(type)) return true;
+ if (/<?{ ?[^}]* ?}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types+ // See comment in isStructPointerType()
+ return type[0] == '%';
+},
+ INT_TYPES: {"i1":0,"i8":0,"i16":0,"i32":0,"i64":0},+ FLOAT_TYPES: {"float":0,"double":0},+ or64: function (x, y) {+ var l = (x | 0) | (y | 0);
+ var h = (Math.round(x / 4294967296) | Math.round(y / 4294967296)) * 4294967296;
+ return l + h;
+ },
+ and64: function (x, y) {+ var l = (x | 0) & (y | 0);
+ var h = (Math.round(x / 4294967296) & Math.round(y / 4294967296)) * 4294967296;
+ return l + h;
+ },
+ xor64: function (x, y) {+ var l = (x | 0) ^ (y | 0);
+ var h = (Math.round(x / 4294967296) ^ Math.round(y / 4294967296)) * 4294967296;
+ return l + h;
+ },
+ getNativeTypeSize: function (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 Runtime.QUANTUM_SIZE; // A pointer
+ } else if (type[0] === 'i') {+ var bits = parseInt(type.substr(1));
+ assert(bits % 8 === 0);
+ return bits/8;
+ } else {+ return 0;
+ }
+ }
+ }
+ },
+ getNativeFieldSize: function (type) {+ return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
+ },
+ dedup: function dedup(items, ident) {+ var seen = {};+ if (ident) {+ return items.filter(function(item) {+ if (seen[item[ident]]) return false;
+ seen[item[ident]] = true;
+ return true;
+ });
+ } else {+ return items.filter(function(item) {+ if (seen[item]) return false;
+ seen[item] = true;
+ return true;
+ });
+ }
+},
+ set: function set() {+ var args = typeof arguments[0] === 'object' ? arguments[0] : arguments;
+ var ret = {};+ for (var i = 0; i < args.length; i++) {+ ret[args[i]] = 0;
+ }
+ return ret;
+},
+ STACK_ALIGN: 8,
+ getAlignSize: function (type, size, vararg) {+ // we align i64s and doubles on 64-bit boundaries, unlike x86
+ if (vararg) return 8;
+ if (!vararg && (type == 'i64' || type == 'double')) return 8;
+ if (!type) return Math.min(size, 8); // align structures internally to 64 bits
+ return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runtime.QUANTUM_SIZE);
+ },
+ calculateStructAlignment: function calculateStructAlignment(type) {+ type.flatSize = 0;
+ type.alignSize = 0;
+ var diffs = [];
+ var prev = -1;
+ var index = 0;
+ type.flatIndexes = type.fields.map(function(field) {+ index++;
+ var size, alignSize;
+ if (Runtime.isNumberType(field) || Runtime.isPointerType(field)) {+ size = Runtime.getNativeTypeSize(field); // pack char; char; in structs, also char[X]s.
+ alignSize = Runtime.getAlignSize(field, size);
+ } else if (Runtime.isStructType(field)) {+ if (field[1] === '0') {+ // this is [0 x something]. When inside another structure like here, it must be at the end,
+ // and it adds no size
+ // XXX this happens in java-nbody for example... assert(index === type.fields.length, 'zero-length in the middle!');
+ size = 0;
+ if (Types.types[field]) {+ alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
+ } else {+ alignSize = type.alignSize || QUANTUM_SIZE;
+ }
+ } else {+ size = Types.types[field].flatSize;
+ alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
+ }
+ } else if (field[0] == 'b') {+ // bN, large number field, like a [N x i8]
+ size = field.substr(1)|0;
+ alignSize = 1;
+ } else if (field[0] === '<') {+ // vector type
+ size = alignSize = Types.types[field].flatSize; // fully aligned
+ } else if (field[0] === 'i') {+ // illegal integer field, that could not be legalized because it is an internal structure field
+ // it is ok to have such fields, if we just use them as markers of field size and nothing more complex
+ size = alignSize = parseInt(field.substr(1))/8;
+ assert(size % 1 === 0, 'cannot handle non-byte-size field ' + field);
+ } else {+ assert(false, 'invalid type for calculateStructAlignment');
+ }
+ if (type.packed) alignSize = 1;
+ type.alignSize = Math.max(type.alignSize, alignSize);
+ var curr = Runtime.alignMemory(type.flatSize, alignSize); // if necessary, place this on aligned memory
+ type.flatSize = curr + size;
+ if (prev >= 0) {+ diffs.push(curr-prev);
+ }
+ prev = curr;
+ return curr;
+ });
+ if (type.name_ && type.name_[0] === '[') {+ // arrays have 2 elements, so we get the proper difference. then we scale here. that way we avoid
+ // allocating a potentially huge array for [999999 x i8] etc.
+ type.flatSize = parseInt(type.name_.substr(1))*type.flatSize/2;
+ }
+ type.flatSize = Runtime.alignMemory(type.flatSize, type.alignSize);
+ if (diffs.length == 0) {+ type.flatFactor = type.flatSize;
+ } else if (Runtime.dedup(diffs).length == 1) {+ type.flatFactor = diffs[0];
+ }
+ type.needsFlattening = (type.flatFactor != 1);
+ return type.flatIndexes;
+ },
+ generateStructInfo: function (struct, typeName, offset) {+ var type, alignment;
+ if (typeName) {+ offset = offset || 0;
+ type = (typeof Types === 'undefined' ? Runtime.typeInfo : Types.types)[typeName];
+ if (!type) return null;
+ if (type.fields.length != struct.length) {+ printErr('Number of named fields must match the type for ' + typeName + ': possibly duplicate struct names. Cannot return structInfo');+ return null;
+ }
+ alignment = type.flatIndexes;
+ } else {+ var type = { fields: struct.map(function(item) { return item[0] }) };+ alignment = Runtime.calculateStructAlignment(type);
+ }
+ var ret = {+ __size__: type.flatSize
+ };
+ if (typeName) {+ struct.forEach(function(item, i) {+ if (typeof item === 'string') {+ ret[item] = alignment[i] + offset;
+ } else {+ // embedded struct
+ var key;
+ for (var k in item) key = k;
+ ret[key] = Runtime.generateStructInfo(item[key], type.fields[i], alignment[i]);
+ }
+ });
+ } else {+ struct.forEach(function(item, i) {+ ret[item[1]] = alignment[i];
+ });
+ }
+ return ret;
+ },
+ dynCall: function (sig, ptr, args) {+ if (args && args.length) {+ if (!args.splice) args = Array.prototype.slice.call(args);
+ args.splice(0, 0, ptr);
+ return Module['dynCall_' + sig].apply(null, args);
+ } else {+ return Module['dynCall_' + sig].call(null, ptr);
+ }
+ },
+ functionPointers: [],
+ addFunction: function (func) {+ for (var i = 0; i < Runtime.functionPointers.length; i++) {+ if (!Runtime.functionPointers[i]) {+ Runtime.functionPointers[i] = func;
+ return 2*(1 + i);
+ }
+ }
+ throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
+ },
+ removeFunction: function (index) {+ Runtime.functionPointers[(index-2)/2] = null;
+ },
+ getAsmConst: function (code, numArgs) {+ // code is a constant string on the heap, so we can cache these
+ if (!Runtime.asmConstCache) Runtime.asmConstCache = {};+ var func = Runtime.asmConstCache[code];
+ if (func) return func;
+ var args = [];
+ for (var i = 0; i < numArgs; i++) {+ args.push(String.fromCharCode(36) + i); // $0, $1 etc
+ }
+ return Runtime.asmConstCache[code] = eval('(function(' + args.join(',') + '){ ' + Pointer_stringify(code) + ' })'); // new Function does not allow upvars in node+ },
+ warnOnce: function (text) {+ if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {};+ if (!Runtime.warnOnce.shown[text]) {+ Runtime.warnOnce.shown[text] = 1;
+ Module.printErr(text);
+ }
+ },
+ funcWrappers: {},+ getFuncWrapper: function (func, sig) {+ assert(sig);
+ if (!Runtime.funcWrappers[func]) {+ Runtime.funcWrappers[func] = function dynCall_wrapper() {+ return Runtime.dynCall(sig, func, arguments);
+ };
+ }
+ return Runtime.funcWrappers[func];
+ },
+ UTF8Processor: function () {+ var buffer = [];
+ var needed = 0;
+ this.processCChar = function (code) {+ code = code & 0xFF;
+ if (buffer.length == 0) {+ if ((code & 0x80) == 0x00) { // 0xxxxxxx+ return String.fromCharCode(code);
+ }
+ buffer.push(code);
+ if ((code & 0xE0) == 0xC0) { // 110xxxxx+ needed = 1;
+ } else if ((code & 0xF0) == 0xE0) { // 1110xxxx+ needed = 2;
+ } else { // 11110xxx+ needed = 3;
+ }
+ return '';
+ }
+ if (needed) {+ buffer.push(code);
+ needed--;
+ if (needed > 0) return '';
+ }
+ var c1 = buffer[0];
+ var c2 = buffer[1];
+ var c3 = buffer[2];
+ var c4 = buffer[3];
+ var ret;
+ if (buffer.length == 2) {+ ret = String.fromCharCode(((c1 & 0x1F) << 6) | (c2 & 0x3F));
+ } else if (buffer.length == 3) {+ ret = String.fromCharCode(((c1 & 0x0F) << 12) | ((c2 & 0x3F) << 6) | (c3 & 0x3F));
+ } else {+ // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+ var codePoint = ((c1 & 0x07) << 18) | ((c2 & 0x3F) << 12) |
+ ((c3 & 0x3F) << 6) | (c4 & 0x3F);
+ ret = String.fromCharCode(
+ Math.floor((codePoint - 0x10000) / 0x400) + 0xD800,
+ (codePoint - 0x10000) % 0x400 + 0xDC00);
+ }
+ buffer.length = 0;
+ return ret;
+ }
+ this.processJSString = function processJSString(string) {+ string = unescape(encodeURIComponent(string));
+ var ret = [];
+ for (var i = 0; i < string.length; i++) {+ ret.push(string.charCodeAt(i));
+ }
+ return ret;
+ }
+ },
+ stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = (((STACKTOP)+7)&-8); return ret; },+ staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + size)|0;STATICTOP = (((STATICTOP)+7)&-8); return ret; },+ dynamicAlloc: function (size) { var ret = DYNAMICTOP;DYNAMICTOP = (DYNAMICTOP + size)|0;DYNAMICTOP = (((DYNAMICTOP)+7)&-8); if (DYNAMICTOP >= TOTAL_MEMORY) enlargeMemory();; return ret; },+ alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 8))*(quantum ? quantum : 8); return ret; },+ makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)))+((+((high>>>0)))*(+4294967296))) : ((+((low>>>0)))+((+((high|0)))*(+4294967296)))); return ret; },+ GLOBAL_BASE: 8,
+ QUANTUM_SIZE: 4,
+ __dummy__: 0
+}
+//========================================
+// Runtime essentials
+//========================================
+var __THREW__ = 0; // Used in checking for thrown exceptions.
+var ABORT = false; // whether we are quitting the application. no code should run after this. set in exit() and abort()
+var EXITSTATUS = 0;
+var undef = 0;
+// tempInt is used for 32-bit signed values or smaller. tempBigInt is used
+// for 32-bit unsigned values or more than 32 bits. TODO: audit all uses of tempInt
+var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI, tempBigIntR, tempBigIntS, tempBigIntP, tempBigIntD, tempDouble, tempFloat;
+var tempI64, tempI64b;
+var tempRet0, tempRet1, tempRet2, tempRet3, tempRet4, tempRet5, tempRet6, tempRet7, tempRet8, tempRet9;
+function assert(condition, text) {+ if (!condition) {+ abort('Assertion failed: ' + text);+ }
+}
+var globalScope = this;
+// C calling interface. A convenient way to call C functions (in C files, or
+// defined with extern "C").
+//
+// Note: LLVM optimizations can inline and remove functions, after which you will not be
+// able to call them. Closure can also do so. To avoid that, add your function to
+// the exports using something like
+//
+// -s EXPORTED_FUNCTIONS='["_main", "_myfunc"]'
+//
+// @param ident The name of the C function (note that C++ functions will be name-mangled - use extern "C")
+// @param returnType The return type of the function, one of the JS types 'number', 'string' or 'array' (use 'number' for any C pointer, and
+// 'array' for JavaScript arrays and typed arrays; note that arrays are 8-bit).
+// @param argTypes An array of the types of arguments for the function (if there are no arguments, this can be ommitted). Types are as in returnType,
+// except that 'array' is not possible (there is no way for us to know the length of the array)
+// @param args An array of the arguments to the function, as native JS values (as in returnType)
+// Note that string arguments will be stored on the stack (the JS string will become a C string on the stack).
+// @return The return value, as a native JS value (as in returnType)
+function ccall(ident, returnType, argTypes, args) {+ return ccallFunc(getCFunc(ident), returnType, argTypes, args);
+}
+Module["ccall"] = ccall;
+// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
+function getCFunc(ident) {+ try {+ var func = Module['_' + ident]; // closure exported function
+ if (!func) func = eval('_' + ident); // explicit lookup+ } catch(e) {+ }
+ assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
+ return func;
+}
+// Internal function that does a C call using a function, not an identifier
+function ccallFunc(func, returnType, argTypes, args) {+ var stack = 0;
+ function toC(value, type) {+ if (type == 'string') {+ if (value === null || value === undefined || value === 0) return 0; // null string
+ value = intArrayFromString(value);
+ type = 'array';
+ }
+ if (type == 'array') {+ if (!stack) stack = Runtime.stackSave();
+ var ret = Runtime.stackAlloc(value.length);
+ writeArrayToMemory(value, ret);
+ return ret;
+ }
+ return value;
+ }
+ function fromC(value, type) {+ if (type == 'string') {+ return Pointer_stringify(value);
+ }
+ assert(type != 'array');
+ return value;
+ }
+ var i = 0;
+ var cArgs = args ? args.map(function(arg) {+ return toC(arg, argTypes[i++]);
+ }) : [];
+ var ret = fromC(func.apply(null, cArgs), returnType);
+ if (stack) Runtime.stackRestore(stack);
+ return ret;
+}
+// Returns a native JS wrapper for a C function. This is similar to ccall, but
+// returns a function you can call repeatedly in a normal way. For example:
+//
+// var my_function = cwrap('my_c_function', 'number', ['number', 'number']);+// alert(my_function(5, 22));
+// alert(my_function(99, 12));
+//
+function cwrap(ident, returnType, argTypes) {+ var func = getCFunc(ident);
+ return function() {+ return ccallFunc(func, returnType, argTypes, Array.prototype.slice.call(arguments));
+ }
+}
+Module["cwrap"] = cwrap;
+// Sets a value in memory in a dynamic way at run-time. Uses the
+// type data. This is the same as makeSetValue, except that
+// makeSetValue is done at compile-time and generates the needed
+// code then, whereas this function picks the right code at
+// run-time.
+// Note that setValue and getValue only do *aligned* writes and reads!
+// Note that ccall uses JS types as for defining types, while setValue and
+// getValue need LLVM types ('i8', 'i32') - this is a lower-level operation+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)]=value; break;
+ case 'i8': HEAP8[(ptr)]=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) ? (tempDouble > (+0) ? ((Math_min((+(Math_floor((tempDouble)/(+4294967296)))), (+4294967295)))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/(+4294967296))))))>>>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);+ }
+}
+Module['setValue'] = setValue;
+// Parallel to setValue.
+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)];
+ case 'i8': return HEAP8[(ptr)];
+ 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 setValue: ' + type);+ }
+ return null;
+}
+Module['getValue'] = getValue;
+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
+Module['ALLOC_NORMAL'] = ALLOC_NORMAL;
+Module['ALLOC_STACK'] = ALLOC_STACK;
+Module['ALLOC_STATIC'] = ALLOC_STATIC;
+Module['ALLOC_DYNAMIC'] = ALLOC_DYNAMIC;
+Module['ALLOC_NONE'] = ALLOC_NONE;
+// 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_*
+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 = [_malloc, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length));
+ }
+ if (zeroinit) {+ var ptr = ret, stop;
+ 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(slab, ret);
+ } else {+ HEAPU8.set(new Uint8Array(slab), ret);
+ }
+ return ret;
+ }
+ var i = 0, type, typeSize, previousType;
+ while (i < size) {+ var curr = slab[i];
+ if (typeof curr === 'function') {+ curr = Runtime.getFunctionIndex(curr);
+ }
+ 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 = Runtime.getNativeTypeSize(type);
+ previousType = type;
+ }
+ i += typeSize;
+ }
+ return ret;
+}
+Module['allocate'] = allocate;
+function Pointer_stringify(ptr, /* optional */ length) {+ // TODO: use TextDecoder
+ // Find the length, and check for UTF while doing so
+ var hasUtf = false;
+ var t;
+ var i = 0;
+ while (1) {+ t = HEAPU8[(((ptr)+(i))|0)];
+ if (t >= 128) hasUtf = true;
+ else if (t == 0 && !length) break;
+ i++;
+ if (length && i == length) break;
+ }
+ if (!length) length = i;
+ var ret = '';
+ if (!hasUtf) {+ 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;
+ }
+ var utf8 = new Runtime.UTF8Processor();
+ for (i = 0; i < length; i++) {+ t = HEAPU8[(((ptr)+(i))|0)];
+ ret += utf8.processCChar(t);
+ }
+ return ret;
+}
+Module['Pointer_stringify'] = Pointer_stringify;
+// 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.
+function UTF16ToString(ptr) {+ 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);
+ }
+}
+Module['UTF16ToString'] = UTF16ToString;
+// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
+// null-terminated and encoded in UTF16LE form. The copy will require at most (str.length*2+1)*2 bytes of space in the HEAP.
+function stringToUTF16(str, outPtr) {+ for(var i = 0; i < str.length; ++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)+(i*2))>>1)]=codeUnit;
+ }
+ // Null-terminate the pointer to the HEAP.
+ HEAP16[(((outPtr)+(str.length*2))>>1)]=0;
+}
+Module['stringToUTF16'] = stringToUTF16;
+// Given a pointer 'ptr' to a null-terminated UTF32LE-encoded string in the emscripten HEAP, returns
+// a copy of that string as a Javascript String object.
+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.
+ if (utf32 >= 0x10000) {+ var ch = utf32 - 0x10000;
+ str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
+ } else {+ str += String.fromCharCode(utf32);
+ }
+ }
+}
+Module['UTF32ToString'] = UTF32ToString;
+// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
+// null-terminated and encoded in UTF32LE form. The copy will require at most (str.length+1)*4 bytes of space in the HEAP,
+// but can use less, since str.length does not return the number of characters in the string, but the number of UTF-16 code units in the string.
+function stringToUTF32(str, outPtr) {+ var iChar = 0;
+ for(var iCodeUnit = 0; iCodeUnit < str.length; ++iCodeUnit) {+ // 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.
+ var codeUnit = str.charCodeAt(iCodeUnit); // possibly a lead surrogate
+ if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {+ var trailSurrogate = str.charCodeAt(++iCodeUnit);
+ codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
+ }
+ HEAP32[(((outPtr)+(iChar*4))>>2)]=codeUnit;
+ ++iChar;
+ }
+ // Null-terminate the pointer to the HEAP.
+ HEAP32[(((outPtr)+(iChar*4))>>2)]=0;
+}
+Module['stringToUTF32'] = stringToUTF32;
+function demangle(func) {+ try {+ // Special-case the entry point, since its name differs from other name mangling.
+ if (func == 'Object._main' || func == '_main') {+ return 'main()';
+ }
+ if (typeof func === 'number') func = Pointer_stringify(func);
+ if (func[0] !== '_') return func;
+ if (func[1] !== '_') return func; // C function
+ if (func[2] !== 'Z') return func;
+ switch (func[3]) {+ case 'n': return 'operator new()';
+ case 'd': return 'operator delete()';
+ }
+ var i = 3;
+ // params, etc.
+ var basicTypes = {+ 'v': 'void',
+ 'b': 'bool',
+ 'c': 'char',
+ 's': 'short',
+ 'i': 'int',
+ 'l': 'long',
+ 'f': 'float',
+ 'd': 'double',
+ 'w': 'wchar_t',
+ 'a': 'signed char',
+ 'h': 'unsigned char',
+ 't': 'unsigned short',
+ 'j': 'unsigned int',
+ 'm': 'unsigned long',
+ 'x': 'long long',
+ 'y': 'unsigned long long',
+ 'z': '...'
+ };
+ function dump(x) {+ //return;
+ if (x) Module.print(x);
+ Module.print(func);
+ var pre = '';
+ for (var a = 0; a < i; a++) pre += ' ';
+ Module.print (pre + '^');
+ }
+ var subs = [];
+ function parseNested() {+ i++;
+ if (func[i] === 'K') i++; // ignore const
+ var parts = [];
+ while (func[i] !== 'E') {+ if (func[i] === 'S') { // substitution+ i++;
+ var next = func.indexOf('_', i);+ var num = func.substring(i, next) || 0;
+ parts.push(subs[num] || '?');
+ i = next+1;
+ continue;
+ }
+ if (func[i] === 'C') { // constructor+ parts.push(parts[parts.length-1]);
+ i += 2;
+ continue;
+ }
+ var size = parseInt(func.substr(i));
+ var pre = size.toString().length;
+ if (!size || !pre) { i--; break; } // counter i++ below us+ var curr = func.substr(i + pre, size);
+ parts.push(curr);
+ subs.push(curr);
+ i += pre + size;
+ }
+ i++; // skip E
+ return parts;
+ }
+ var first = true;
+ function parse(rawList, limit, allowVoid) { // main parser+ limit = limit || Infinity;
+ var ret = '', list = [];
+ function flushList() {+ return '(' + list.join(', ') + ')';+ }
+ var name;
+ if (func[i] === 'N') {+ // namespaced N-E
+ name = parseNested().join('::');+ limit--;
+ if (limit === 0) return rawList ? [name] : name;
+ } else {+ // not namespaced
+ if (func[i] === 'K' || (first && func[i] === 'L')) i++; // ignore const and first 'L'
+ var size = parseInt(func.substr(i));
+ if (size) {+ var pre = size.toString().length;
+ name = func.substr(i + pre, size);
+ i += pre + size;
+ }
+ }
+ first = false;
+ if (func[i] === 'I') {+ i++;
+ var iList = parse(true);
+ var iRet = parse(true, 1, true);
+ ret += iRet[0] + ' ' + name + '<' + iList.join(', ') + '>';+ } else {+ ret = name;
+ }
+ paramLoop: while (i < func.length && limit-- > 0) {+ //dump('paramLoop');+ var c = func[i++];
+ if (c in basicTypes) {+ list.push(basicTypes[c]);
+ } else {+ switch (c) {+ case 'P': list.push(parse(true, 1, true)[0] + '*'); break; // pointer
+ case 'R': list.push(parse(true, 1, true)[0] + '&'); break; // reference
+ case 'L': { // literal+ i++; // skip basic type
+ var end = func.indexOf('E', i);+ var size = end - i;
+ list.push(func.substr(i, size));
+ i += size + 2; // size + 'EE'
+ break;
+ }
+ case 'A': { // array+ var size = parseInt(func.substr(i));
+ i += size.toString().length;
+ if (func[i] !== '_') throw '?';
+ i++; // skip _
+ list.push(parse(true, 1, true)[0] + ' [' + size + ']');
+ break;
+ }
+ case 'E': break paramLoop;
+ default: ret += '?' + c; break paramLoop;
+ }
+ }
+ }
+ if (!allowVoid && list.length === 1 && list[0] === 'void') list = []; // avoid (void)
+ return rawList ? list : ret + flushList();
+ }
+ return parse();
+ } catch(e) {+ return func;
+ }
+}
+function demangleAll(text) {+ return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return x === y ? x : (x + ' [' + y + ']') });+}
+function stackTrace() {+ var stack = new Error().stack;
+ return stack ? demangleAll(stack) : '(no stack trace available)'; // Stack trace is not available at least on IE10 and Safari 6.
+}
+// Memory management
+var PAGE_SIZE = 4096;
+function alignMemoryPage(x) {+ return (x+4095)&-4096;
+}
+var HEAP;
+var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
+var STATIC_BASE = 0, STATICTOP = 0, staticSealed = false; // static area
+var STACK_BASE = 0, STACKTOP = 0, STACK_MAX = 0; // stack area
+var DYNAMIC_BASE = 0, DYNAMICTOP = 0; // dynamic area handled by sbrk
+function enlargeMemory() {+ abort('Cannot enlarge memory arrays in asm.js. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value ' + TOTAL_MEMORY + ', or (2) set Module.TOTAL_MEMORY before the program runs.');+}
+var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
+var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 268435456;
+var FAST_MEMORY = Module['FAST_MEMORY'] || 2097152;
+var totalMemory = 4096;
+while (totalMemory < TOTAL_MEMORY || totalMemory < 2*TOTAL_STACK) {+ if (totalMemory < 16*1024*1024) {+ totalMemory *= 2;
+ } else {+ totalMemory += 16*1024*1024
+ }
+}
+if (totalMemory !== TOTAL_MEMORY) {+ Module.printErr('increasing TOTAL_MEMORY to ' + totalMemory + ' to be more reasonable');+ TOTAL_MEMORY = totalMemory;
+}
+// Initialize the runtime's memory
+// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
+assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']),
+ 'Cannot fallback to non-typed array case: Code is too specialized');
+var buffer = new ArrayBuffer(TOTAL_MEMORY);
+HEAP8 = new Int8Array(buffer);
+HEAP16 = new Int16Array(buffer);
+HEAP32 = new Int32Array(buffer);
+HEAPU8 = new Uint8Array(buffer);
+HEAPU16 = new Uint16Array(buffer);
+HEAPU32 = new Uint32Array(buffer);
+HEAPF32 = new Float32Array(buffer);
+HEAPF64 = new Float64Array(buffer);
+// Endianness check (note: assumes compiler arch was little-endian)
+HEAP32[0] = 255;
+assert(HEAPU8[0] === 255 && HEAPU8[3] === 0, 'Typed arrays 2 must be run on a little-endian system');
+Module['HEAP'] = HEAP;
+Module['HEAP8'] = HEAP8;
+Module['HEAP16'] = HEAP16;
+Module['HEAP32'] = HEAP32;
+Module['HEAPU8'] = HEAPU8;
+Module['HEAPU16'] = HEAPU16;
+Module['HEAPU32'] = HEAPU32;
+Module['HEAPF32'] = HEAPF32;
+Module['HEAPF64'] = HEAPF64;
+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) {+ Runtime.dynCall('v', func);+ } else {+ Runtime.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 runtime has exited
+var runtimeInitialized = 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__);
+}
+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);
+}
+Module['addOnPreRun'] = Module.addOnPreRun = addOnPreRun;
+function addOnInit(cb) {+ __ATINIT__.unshift(cb);
+}
+Module['addOnInit'] = Module.addOnInit = addOnInit;
+function addOnPreMain(cb) {+ __ATMAIN__.unshift(cb);
+}
+Module['addOnPreMain'] = Module.addOnPreMain = addOnPreMain;
+function addOnExit(cb) {+ __ATEXIT__.unshift(cb);
+}
+Module['addOnExit'] = Module.addOnExit = addOnExit;
+function addOnPostRun(cb) {+ __ATPOSTRUN__.unshift(cb);
+}
+Module['addOnPostRun'] = Module.addOnPostRun = addOnPostRun;
+// Tools
+// This processes a JS string into a C-line array of numbers, 0-terminated.
+// For LLVM-originating strings, see parser.js:parseLLVMString function
+function intArrayFromString(stringy, dontAddNull, length /* optional */) {+ var ret = (new Runtime.UTF8Processor()).processJSString(stringy);
+ if (length) {+ ret.length = length;
+ }
+ if (!dontAddNull) {+ ret.push(0);
+ }
+ return ret;
+}
+Module['intArrayFromString'] = intArrayFromString;
+function intArrayToString(array) {+ var ret = [];
+ for (var i = 0; i < array.length; i++) {+ var chr = array[i];
+ if (chr > 0xFF) {+ chr &= 0xFF;
+ }
+ ret.push(String.fromCharCode(chr));
+ }
+ return ret.join('');+}
+Module['intArrayToString'] = intArrayToString;
+// Write a Javascript array to somewhere in the heap
+function writeStringToMemory(string, buffer, dontAddNull) {+ var array = intArrayFromString(string, dontAddNull);
+ var i = 0;
+ while (i < array.length) {+ var chr = array[i];
+ HEAP8[(((buffer)+(i))|0)]=chr;
+ i = i + 1;
+ }
+}
+Module['writeStringToMemory'] = writeStringToMemory;
+function writeArrayToMemory(array, buffer) {+ for (var i = 0; i < array.length; i++) {+ HEAP8[(((buffer)+(i))|0)]=array[i];
+ }
+}
+Module['writeArrayToMemory'] = writeArrayToMemory;
+function writeAsciiToMemory(str, buffer, dontAddNull) {+ for (var i = 0; i < str.length; i++) {+ HEAP8[(((buffer)+(i))|0)]=str.charCodeAt(i);
+ }
+ if (!dontAddNull) HEAP8[(((buffer)+(str.length))|0)]=0;
+}
+Module['writeAsciiToMemory'] = writeAsciiToMemory;
+function unSign(value, bits, ignore, sig) {+ 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, sig) {+ 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;
+}
+if (!Math['imul']) Math['imul'] = function imul(a, b) {+ var ah = a >>> 16;
+ var al = a & 0xffff;
+ var bh = b >>> 16;
+ var bl = b & 0xffff;
+ return (al*bl + ((ah*bl + al*bh) << 16))|0;
+};
+Math.imul = Math['imul'];
+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_min = Math.min;
+// 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
+// PRE_RUN_ADDITIONS (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 addRunDependency(id) {+ runDependencies++;
+ if (Module['monitorRunDependencies']) {+ Module['monitorRunDependencies'](runDependencies);
+ }
+}
+Module['addRunDependency'] = addRunDependency;
+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['removeRunDependency'] = removeRunDependency;
+Module["preloadedImages"] = {}; // maps url to image data+Module["preloadedAudios"] = {}; // maps url to audio data+var memoryInitializer = null;
+// === Body ===
+STATIC_BASE = 8;
+STATICTOP = STATIC_BASE + 7624;
+/* global initializers */ __ATINIT__.push({ func: function() { runPostSets() } });+/* memory initializer */ allocate([22,6,117,117,36,36,36,36,83,83,83,83,83,83,83,83,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,134,6,37,37,20,20,20,20,115,115,115,115,115,115,115,115,99,99,99,99,99,99,99,99,51,51,51,51,51,51,51,51,82,82,82,82,82,82,82,82,82,82,82,82,82,82,82,82,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,66,150,6,21,21,116,116,116,116,131,131,131,131,131,131,131,131,99,99,99,99,99,99,99,99,67,67,67,67,67,67,67,67,51,51,51,51,51,51,51,51,35,35,35,35,35,35,35,35,82,82,82,82,82,82,82,82,82,82,82,82,82,82,82,82,166,6,21,21,132,132,132,132,147,147,147,147,147,147,147,147,115,115,115,115,115,115,115,115,99,99,99,99,99,99,99,99,83,83,83,83,83,83,83,83,67,67,67,67,67,67,67,67,51,51,51,51,51,51,51,51,35,35,35,35,35,35,35,35,181,149,164,164,132,132,36,36,20,20,4,4,115,115,115,115,99,99,99,99,83,83,83,83,67,67,67,67,51,51,51,51,197,181,165,5,148,148,116,116,52,52,36,36,131,131,131,131,99,99,99,99,83,83,83,83,67,67,67,67,19,19,19,19,214,182,197,197,165,165,149,149,132,132,132,132,84,84,84,84,68,68,68,68,4,4,4,4,115,115,115,115,115,115,115,115,99,99,99,99,99,99,99,99,51,51,51,51,51,51,51,51,35,35,35,35,35,35,35,35,19,19,19,19,19,19,19,19,230,214,198,182,165,165,149,149,132,132,132,132,116,116,116,116,100,100,100,100,84,84,84,84,67,67,67,67,67,67,67,67,51,51,51,51,51,51,51,51,35,35,35,35,35,35,35,35,19,19,19,19,19,19,19,19,3,3,3,3,3,3,3,3,0,249,233,217,200,200,184,184,167,167,167,167,151,151,151,151,134,134,134,134,134,134,134,134,118,118,118,118,118,118,118,118,0,0,101,85,68,68,52,52,35,35,35,35,19,19,19,19,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,18,33,33,0,0,0,0,3,19,50,50,33,33,33,33,4,20,67,67,34,34,34,34,49,49,49,49,49,49,49,49,4,20,35,35,51,51,83,83,65,65,65,65,65,65,65,65,21,5,100,100,35,35,35,35,82,82,82,82,82,82,82,82,66,66,66,66,66,66,66,66,50,50,50,50,50,50,50,50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,2,1,1,2,1,1,2,1,2,3,1,2,3,2,2,3,2,2,4,2,3,4,2,3,4,3,3,5,3,4,6,3,4,6,4,5,7,4,5,8,4,6,9,5,7,10,6,8,11,6,8,13,7,10,14,8,11,16,9,12,18,10,13,20,11,15,23,13,17,25,0,0,0,0,1,0,0,0,2,0,0,0,4,0,0,0,8,0,0,0,16,0,0,0,32,0,0,0,64,0,0,0,128,0,0,0,19,35,67,51,99,83,2,2,83,67,51,35,18,18,2,2,67,51,34,34,18,18,2,2,50,34,18,2,0,0,0,0,34,18,1,1,0,0,0,0,17,1,0,0,0,0,0,0,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,0,0,0,0,0,0,0,0,1,0,0,0,2,0,0,0,3,0,0,0,4,0,0,0,5,0,0,0,6,0,0,0,7,0,0,0,8,0,0,0,9,0,0,0,10,0,0,0,11,0,0,0,12,0,0,0,13,0,0,0,14,0,0,0,15,0,0,0,10,0,0,0,13,0,0,0,16,0,0,0,11,0,0,0,14,0,0,0,18,0,0,0,13,0,0,0,16,0,0,0,20,0,0,0,14,0,0,0,18,0,0,0,23,0,0,0,16,0,0,0,20,0,0,0,25,0,0,0,18,0,0,0,23,0,0,0,29,0,0,0,0,0,0,0,1,0,0,0,2,0,0,0,3,0,0,0,4,0,0,0,5,0,0,0,6,0,0,0,7,0,0,0,8,0,0,0,9,0,0,0,10,0,0,0,11,0,0,0,12,0,0,0,13,0,0,0,14,0,0,0,15,0,0,0,16,0,0,0,17,0,0,0,18,0,0,0,19,0,0,0,20,0,0,0,21,0,0,0,22,0,0,0,23,0,0,0,24,0,0,0,25,0,0,0,26,0,0,0,27,0,0,0,28,0,0,0,29,0,0,0,29,0,0,0,30,0,0,0,31,0,0,0,32,0,0,0,32,0,0,0,33,0,0,0,34,0,0,0,34,0,0,0,35,0,0,0,35,0,0,0,36,0,0,0,36,0,0,0,37,0,0,0,37,0,0,0,37,0,0,0,38,0,0,0,38,0,0,0,38,0,0,0,39,0,0,0,39,0,0,0,39,0,0,0,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
\ No newline at end of file
+var tempDoublePtr = Runtime.alignMemory(allocate(12, "i8", ALLOC_STATIC), 8);
+assert(tempDoublePtr % 8 == 0);
+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];
+}
+ Module["_memset"] = _memset;var _llvm_memset_p0i8_i32=_memset;
+ Module["_memcpy"] = _memcpy;var _llvm_memcpy_p0i8_p0i8_i32=_memcpy;
+ var _llvm_memset_p0i8_i64=_memset;
+ function _llvm_lifetime_start() {}+ function _llvm_lifetime_end() {}+ function _abort() {+ Module['abort']();
+ }
+ var ___errno_state=0;function ___setErrNo(value) {+ // For convenient setting and returning of errno.
+ HEAP32[((___errno_state)>>2)]=value
+ return value;
+ }function ___errno_location() {+ return ___errno_state;
+ }
+ function _sbrk(bytes) {+ // Implement a Linux-like 'memory area' for our 'process'.
+ // Changes the size of the memory area by |bytes|; returns the
+ // address of the previous top ('break') of the memory area+ // We control the "dynamic" memory - DYNAMIC_BASE to DYNAMICTOP
+ var self = _sbrk;
+ if (!self.called) {+ DYNAMICTOP = alignMemoryPage(DYNAMICTOP); // make sure we start out aligned
+ self.called = true;
+ assert(Runtime.dynamicAlloc);
+ self.alloc = Runtime.dynamicAlloc;
+ Runtime.dynamicAlloc = function() { abort('cannot dynamically allocate, sbrk now has control') };+ }
+ var ret = DYNAMICTOP;
+ if (bytes != 0) self.alloc(bytes);
+ return ret; // Previous break location.
+ }
+ 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};function _sysconf(name) {+ // long sysconf(int name);
+ // http://pubs.opengroup.org/onlinepubs/009695399/functions/sysconf.html
+ switch(name) {+ case 30: return PAGE_SIZE;
+ case 132:
+ case 133:
+ case 12:
+ case 137:
+ case 138:
+ case 15:
+ case 235:
+ case 16:
+ case 17:
+ case 18:
+ case 19:
+ case 20:
+ case 149:
+ case 13:
+ case 10:
+ case 236:
+ case 153:
+ case 9:
+ case 21:
+ case 22:
+ case 159:
+ case 154:
+ case 14:
+ case 77:
+ case 78:
+ case 139:
+ case 80:
+ case 81:
+ case 79:
+ case 82:
+ case 68:
+ case 67:
+ case 164:
+ case 11:
+ case 29:
+ case 47:
+ case 48:
+ case 95:
+ case 52:
+ case 51:
+ case 46:
+ return 200809;
+ case 27:
+ case 246:
+ case 127:
+ case 128:
+ case 23:
+ case 24:
+ case 160:
+ case 161:
+ case 181:
+ case 182:
+ case 242:
+ case 183:
+ case 184:
+ case 243:
+ case 244:
+ case 245:
+ case 165:
+ case 178:
+ case 179:
+ case 49:
+ case 50:
+ case 168:
+ case 169:
+ case 175:
+ case 170:
+ case 171:
+ case 172:
+ case 97:
+ case 76:
+ case 32:
+ case 173:
+ case 35:
+ return -1;
+ case 176:
+ case 177:
+ case 7:
+ case 155:
+ case 8:
+ case 157:
+ case 125:
+ case 126:
+ case 92:
+ case 93:
+ case 129:
+ case 130:
+ case 131:
+ case 94:
+ case 91:
+ return 1;
+ case 74:
+ case 60:
+ case 69:
+ case 70:
+ case 4:
+ return 1024;
+ case 31:
+ case 42:
+ case 72:
+ return 32;
+ case 87:
+ case 26:
+ case 33:
+ return 2147483647;
+ case 34:
+ case 1:
+ return 47839;
+ case 38:
+ case 36:
+ return 99;
+ case 43:
+ case 37:
+ return 2048;
+ case 0: return 2097152;
+ case 3: return 65536;
+ case 28: return 32768;
+ case 44: return 32767;
+ case 75: return 16384;
+ case 39: return 1000;
+ case 89: return 700;
+ case 71: return 256;
+ case 40: return 255;
+ case 2: return 100;
+ case 180: return 64;
+ case 25: return 20;
+ case 5: return 16;
+ case 6: return 6;
+ case 73: return 4;
+ case 84: return 1;
+ }
+ ___setErrNo(ERRNO_CODES.EINVAL);
+ return -1;
+ }
+ function _time(ptr) {+ var ret = Math.floor(Date.now()/1000);
+ if (ptr) {+ HEAP32[((ptr)>>2)]=ret
+ }
+ return ret;
+ }
+ Module["_strlen"] = _strlen;
+ 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"};+ 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
+ if (stream.tty.output.length) {+ stream.tty.ops.put_char(stream.tty, 10);
+ }
+ },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);
+ }
+ for (var i = 0; i < length; i++) {+ try {+ 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) {+ result = process['stdin']['read']();
+ if (!result) {+ if (process['stdin']['_readableState'] && process['stdin']['_readableState']['ended']) {+ return null; // EOF
+ }
+ return undefined; // no data available
+ }
+ } 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) {+ Module['print'](tty.output.join(''));+ tty.output = [];
+ } else {+ tty.output.push(TTY.utf8.processCChar(val));
+ }
+ }},default_tty1_ops:{put_char:function (tty, val) {+ if (val === null || val === 10) {+ Module['printErr'](tty.output.join(''));+ tty.output = [];
+ } else {+ tty.output.push(TTY.utf8.processCChar(val));
+ }
+ }}};
+ var MEMFS={ops_table:null,CONTENT_OWNING:1,CONTENT_FLEXIBLE:2,CONTENT_FIXED:3,mount:function (mount) {+ return MEMFS.createNode(null, '/', 16384 | 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,
+ 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
+ }
+ },
+ 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.contents = [];
+ node.contentMode = MEMFS.CONTENT_FLEXIBLE;
+ } 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;
+ },ensureFlexible:function (node) {+ if (node.contentMode !== MEMFS.CONTENT_FLEXIBLE) {+ var contents = node.contents;
+ node.contents = Array.prototype.slice.call(contents);
+ node.contentMode = MEMFS.CONTENT_FLEXIBLE;
+ }
+ },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.contents.length;
+ } 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.ensureFlexible(node);
+ var contents = node.contents;
+ if (attr.size < contents.length) contents.length = attr.size;
+ else while (attr.size > contents.length) contents.push(0);
+ }
+ },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, 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 >= contents.length)
+ return 0;
+ var size = Math.min(contents.length - 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) {+ var node = stream.node;
+ node.timestamp = Date.now();
+ var contents = node.contents;
+ if (length && contents.length === 0 && position === 0 && buffer.subarray) {+ // just replace it with the new data
+ if (canOwn && offset === 0) {+ node.contents = buffer; // this could be a subarray of Emscripten HEAP, or allocated from some other source.
+ node.contentMode = (buffer.buffer === HEAP8.buffer) ? MEMFS.CONTENT_OWNING : MEMFS.CONTENT_FIXED;
+ } else {+ node.contents = new Uint8Array(buffer.subarray(offset, offset+length));
+ node.contentMode = MEMFS.CONTENT_FIXED;
+ }
+ return length;
+ }
+ MEMFS.ensureFlexible(node);
+ var contents = node.contents;
+ while (contents.length < position) contents.push(0);
+ for (var i = 0; i < length; i++) {+ contents[position + i] = buffer[offset + i];
+ }
+ 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.contents.length;
+ }
+ }
+ if (position < 0) {+ throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
+ }
+ stream.ungotten = [];
+ stream.position = position;
+ return position;
+ },allocate:function (stream, offset, length) {+ MEMFS.ensureFlexible(stream.node);
+ var contents = stream.node.contents;
+ var limit = offset + length;
+ while (limit > contents.length) contents.push(0);
+ },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 < contents.length) {+ 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 };+ }}};
+ var IDBFS={dbs:{},indexedDB:function () {+ return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
+ },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",mount:function (mount) {+ 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);
+ });
+ });
+ },reconcile:function (src, dst, callback) {+ var total = 0;
+ var create = {};+ for (var key in src.files) {+ if (!src.files.hasOwnProperty(key)) continue;
+ var e = src.files[key];
+ var e2 = dst.files[key];
+ if (!e2 || e.timestamp > e2.timestamp) {+ create[key] = e;
+ total++;
+ }
+ }
+ var remove = {};+ for (var key in dst.files) {+ if (!dst.files.hasOwnProperty(key)) continue;
+ var e = dst.files[key];
+ var e2 = src.files[key];
+ if (!e2) {+ remove[key] = e;
+ total++;
+ }
+ }
+ if (!total) {+ // early out
+ return callback(null);
+ }
+ var completed = 0;
+ function done(err) {+ if (err) return callback(err);
+ if (++completed >= total) {+ return callback(null);
+ }
+ };
+ // create a single transaction to handle and IDB reads / writes we'll need to do
+ var db = src.type === 'remote' ? src.db : dst.db;
+ var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
+ transaction.onerror = function transaction_onerror() { callback(this.error); };+ var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
+ for (var path in create) {+ if (!create.hasOwnProperty(path)) continue;
+ var entry = create[path];
+ if (dst.type === 'local') {+ // save file to local
+ try {+ if (FS.isDir(entry.mode)) {+ FS.mkdir(path, entry.mode);
+ } else if (FS.isFile(entry.mode)) {+ var stream = FS.open(path, 'w+', 0666);
+ FS.write(stream, entry.contents, 0, entry.contents.length, 0, true /* canOwn */);
+ FS.close(stream);
+ }
+ done(null);
+ } catch (e) {+ return done(e);
+ }
+ } else {+ // save file to IDB
+ var req = store.put(entry, path);
+ req.onsuccess = function req_onsuccess() { done(null); };+ req.onerror = function req_onerror() { done(this.error); };+ }
+ }
+ for (var path in remove) {+ if (!remove.hasOwnProperty(path)) continue;
+ var entry = remove[path];
+ if (dst.type === 'local') {+ // delete file from local
+ try {+ if (FS.isDir(entry.mode)) {+ // TODO recursive delete?
+ FS.rmdir(path);
+ } else if (FS.isFile(entry.mode)) {+ FS.unlink(path);
+ }
+ done(null);
+ } catch (e) {+ return done(e);
+ }
+ } else {+ // delete file from IDB
+ var req = store.delete(path);
+ req.onsuccess = function req_onsuccess() { done(null); };+ req.onerror = function req_onerror() { done(this.error); };+ }
+ }
+ },getLocalSet:function (mount, callback) {+ var files = {};+ 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, node;
+ try {+ var lookup = FS.lookupPath(path);
+ node = lookup.node;
+ 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)));
+ files[path] = { mode: stat.mode, timestamp: stat.mtime };+ } else if (FS.isFile(stat.mode)) {+ files[path] = { contents: node.contents, mode: stat.mode, timestamp: stat.mtime };+ } else {+ return callback(new Error('node type not supported'));+ }
+ }
+ return callback(null, { type: 'local', files: files });+ },getDB:function (name, callback) {+ // look it up in the cache
+ 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 onerror(e);
+ }
+ req.onupgradeneeded = function req_onupgradeneeded() {+ db = req.result;
+ db.createObjectStore(IDBFS.DB_STORE_NAME);
+ };
+ req.onsuccess = function req_onsuccess() {+ db = req.result;
+ // add to the cache
+ IDBFS.dbs[name] = db;
+ callback(null, db);
+ };
+ req.onerror = function req_onerror() {+ callback(this.error);
+ };
+ },getRemoteSet:function (mount, callback) {+ var files = {};+ IDBFS.getDB(mount.mountpoint, function(err, db) {+ if (err) return callback(err);
+ var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
+ transaction.onerror = function transaction_onerror() { callback(this.error); };+ var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
+ store.openCursor().onsuccess = function store_openCursor_onsuccess(event) {+ var cursor = event.target.result;
+ if (!cursor) {+ return callback(null, { type: 'remote', db: db, files: files });+ }
+ files[cursor.key] = cursor.value;
+ cursor.continue();
+ };
+ });
+ }};
+ var NODEFS={isWindows:false,staticInit:function () {+ NODEFS.isWindows = !!process.platform.match(/^win/);
+ },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) {+ // On Windows, directories return permission bits 'rw-rw-rw-', even though they have 'rwxrwxrwx', so
+ // propagate write bits to execute bits.
+ stat.mode = stat.mode | ((stat.mode & 146) >> 1);
+ }
+ } 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);
+ },flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:function (flags) {+ if (flags in NODEFS.flagsToPermissionStringMap) {+ return NODEFS.flagsToPermissionStringMap[flags];
+ } else {+ return flags;
+ }
+ },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 {+ return fs.readlinkSync(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.flagsToPermissionString(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) {+ // FIXME this is terrible.
+ var nbuffer = new Buffer(length);
+ var res;
+ try {+ res = fs.readSync(stream.nfd, nbuffer, 0, length, position);
+ } catch (e) {+ throw new FS.ErrnoError(ERRNO_CODES[e.code]);
+ }
+ if (res > 0) {+ for (var i = 0; i < res; i++) {+ buffer[offset + i] = nbuffer[i];
+ }
+ }
+ return res;
+ },write:function (stream, buffer, offset, length, position) {+ // FIXME this is terrible.
+ var nbuffer = new Buffer(buffer.subarray(offset, offset + length));
+ var res;
+ try {+ res = fs.writeSync(stream.nfd, nbuffer, 0, length, position);
+ } catch (e) {+ throw new FS.ErrnoError(ERRNO_CODES[e.code]);
+ }
+ return res;
+ },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);
+ }
+ stream.position = position;
+ return position;
+ }}};
+ var _stdin=allocate(1, "i32*", ALLOC_STATIC);
+ var _stdout=allocate(1, "i32*", ALLOC_STATIC);
+ var _stderr=allocate(1, "i32*", ALLOC_STATIC);
+ function _fflush(stream) {+ // int fflush(FILE *stream);
+ // http://pubs.opengroup.org/onlinepubs/000095399/functions/fflush.html
+ // we don't currently perform any user-space buffering of data
+ }var FS={root:null,mounts:[],devices:[null],streams:[null],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},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 || { recurse_count: 0 };+ 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)) {+ current = current.mount.root;
+ }
+ // follow symlinks
+ // 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);
+ }
+ 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) {+ this.id = FS.nextInode++;
+ this.name = name;
+ this.mode = mode;
+ this.node_ops = {};+ this.stream_ops = {};+ this.rdev = rdev;
+ this.parent = null;
+ this.mount = null;
+ if (!parent) {+ parent = this; // root node sets parent to itself
+ }
+ this.parent = parent;
+ this.mount = parent.mount;
+ FS.hashAddNode(this);
+ };
+ // compatibility
+ var readMode = 292 | 73;
+ var writeMode = 146;
+ FS.FSNode.prototype = {};+ // 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); },+ },
+ });
+ }
+ return new FS.FSNode(parent, name, mode, rdev);
+ },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 accmode = flag & 2097155;
+ var perms = ['r', 'w', 'rw'][accmode];
+ 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) {+ return FS.nodePermissions(dir, 'x');
+ },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 ((flags & 2097155) !== 0 || // opening for write
+ (flags & 512)) {+ 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 || 1;
+ 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); }+ }
+ });
+ }
+ if (stream.__proto__) {+ // reuse the object
+ stream.__proto__ = FS.FSStream.prototype;
+ } else {+ 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];
+ },syncfs:function (populate, callback) {+ if (typeof(populate) === 'function') {+ callback = populate;
+ populate = false;
+ }
+ var completed = 0;
+ var total = FS.mounts.length;
+ function done(err) {+ if (err) {+ return callback(err);
+ }
+ if (++completed >= total) {+ callback(null);
+ }
+ };
+ // sync all mounts
+ for (var i = 0; i < FS.mounts.length; i++) {+ var mount = FS.mounts[i];
+ if (!mount.type.syncfs) {+ done(null);
+ continue;
+ }
+ mount.type.syncfs(mount, populate, done);
+ }
+ },mount:function (type, opts, mountpoint) {+ var lookup;
+ if (mountpoint) {+ lookup = FS.lookupPath(mountpoint, { follow: false });+ mountpoint = lookup.path; // use the absolute path
+ }
+ var mount = {+ type: type,
+ opts: opts,
+ mountpoint: mountpoint,
+ root: null
+ };
+ // create a root node for the fs
+ var root = type.mount(mount);
+ root.mount = mount;
+ mount.root = root;
+ // assign the mount info to the mountpoint's node
+ if (lookup) {+ lookup.node.mount = mount;
+ lookup.node.mounted = true;
+ // compatibility update FS.root if we mount to /
+ if (mountpoint === '/') {+ FS.root = mount.root;
+ }
+ }
+ // add to our cached list of mounts
+ FS.mounts.push(mount);
+ return root;
+ },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);
+ 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 : 0666;
+ mode &= 4095;
+ mode |= 32768;
+ return FS.mknod(path, mode, 0);
+ },mkdir:function (path, mode) {+ mode = mode !== undefined ? mode : 0777;
+ mode &= 511 | 512;
+ mode |= 16384;
+ return FS.mknod(path, mode, 0);
+ },mkdev:function (path, mode, dev) {+ if (typeof(dev) === 'undefined') {+ dev = mode;
+ mode = 0666;
+ }
+ mode |= 8192;
+ return FS.mknod(path, mode, dev);
+ },symlink:function (oldpath, newpath) {+ var lookup = FS.lookupPath(newpath, { parent: true });+ var parent = lookup.node;
+ 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);
+ }
+ // 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);
+ }
+ }
+ // 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);
+ }
+ },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);
+ }
+ parent.node_ops.rmdir(parent, name);
+ FS.destroyNode(node);
+ },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) {+ // POSIX says unlink should set EPERM, not EISDIR
+ if (err === ERRNO_CODES.EISDIR) err = ERRNO_CODES.EPERM;
+ 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);
+ }
+ parent.node_ops.unlink(parent, name);
+ FS.destroyNode(node);
+ },readlink:function (path) {+ var lookup = FS.lookupPath(path, { follow: false });+ var link = lookup.node;
+ if (!link.node_ops.readlink) {+ throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
+ }
+ return link.node_ops.readlink(link);
+ },stat:function (path, dontFollow) {+ var lookup = FS.lookupPath(path, { follow: !dontFollow });+ var node = lookup.node;
+ 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) {+ flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
+ mode = typeof mode === 'undefined' ? 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
+ 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);
+ }
+ }
+ if (!node) {+ throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
+ }
+ // can't truncate a device
+ if (FS.isChrdev(node.mode)) {+ flags &= ~512;
+ }
+ // check permissions
+ 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;
+ Module['printErr']('read file: ' + path);+ }
+ }
+ return stream;
+ },close:function (stream) {+ try {+ if (stream.stream_ops.close) {+ stream.stream_ops.close(stream);
+ }
+ } catch (e) {+ throw e;
+ } finally {+ FS.closeStream(stream.fd);
+ }
+ },llseek:function (stream, offset, whence) {+ if (!stream.seekable || !stream.stream_ops.llseek) {+ throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
+ }
+ return stream.stream_ops.llseek(stream, offset, whence);
+ },read:function (stream, buffer, offset, length, position) {+ if (length < 0 || position < 0) {+ throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
+ }
+ 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 = true;
+ if (typeof position === 'undefined') {+ position = stream.position;
+ seeking = false;
+ } 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 ((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);
+ }
+ var seeking = true;
+ if (typeof position === 'undefined') {+ position = stream.position;
+ seeking = false;
+ } else if (!stream.seekable) {+ throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
+ }
+ if (stream.flags & 1024) {+ // seek to the end before writing in append mode
+ FS.llseek(stream, 0, 2);
+ }
+ var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
+ if (!seeking) stream.position += bytesWritten;
+ return bytesWritten;
+ },allocate:function (stream, offset, length) {+ 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(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);
+ },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';
+ 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 = '';
+ var utf8 = new Runtime.UTF8Processor();
+ for (var i = 0; i < length; i++) {+ ret += utf8.processCChar(buf[i]);
+ }
+ } else if (opts.encoding === 'binary') {+ ret = buf;
+ } else {+ throw new Error('Invalid encoding type "' + opts.encoding + '"');+ }
+ FS.close(stream);
+ return ret;
+ },writeFile:function (path, data, opts) {+ opts = opts || {};+ opts.flags = opts.flags || 'w';
+ opts.encoding = opts.encoding || 'utf8';
+ var stream = FS.open(path, opts.flags, opts.mode);
+ if (opts.encoding === 'utf8') {+ var utf8 = new Runtime.UTF8Processor();
+ var buf = new Uint8Array(utf8.processJSString(data));
+ FS.write(stream, buf, 0, buf.length, 0);
+ } else if (opts.encoding === 'binary') {+ FS.write(stream, data, 0, data.length, 0);
+ } else {+ throw new Error('Invalid encoding type "' + opts.encoding + '"');+ }
+ FS.close(stream);
+ },cwd:function () {+ return FS.currentPath;
+ },chdir:function (path) {+ var lookup = FS.lookupPath(path, { follow: true });+ 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');+ },createDefaultDevices:function () {+ // create /dev
+ FS.mkdir('/dev');+ // setup /dev/null
+ FS.registerDevice(FS.makedev(1, 3), {+ read: function() { return 0; },+ write: function() { return 0; }+ });
+ 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));+ // 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');+ },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');+ HEAP32[((_stdin)>>2)]=stdin.fd;
+ assert(stdin.fd === 1, 'invalid handle for stdin (' + stdin.fd + ')');+ var stdout = FS.open('/dev/stdout', 'w');+ HEAP32[((_stdout)>>2)]=stdout.fd;
+ assert(stdout.fd === 2, 'invalid handle for stdout (' + stdout.fd + ')');+ var stderr = FS.open('/dev/stderr', 'w');+ HEAP32[((_stderr)>>2)]=stderr.fd;
+ assert(stderr.fd === 3, 'invalid handle for stderr (' + stderr.fd + ')');+ },ensureErrnoError:function () {+ if (FS.ErrnoError) return;
+ FS.ErrnoError = function ErrnoError(errno) {+ this.errno = errno;
+ for (var key in ERRNO_CODES) {+ if (ERRNO_CODES[key] === errno) {+ this.code = key;
+ break;
+ }
+ }
+ this.message = ERRNO_MESSAGES[errno];
+ this.stack = stackTrace();
+ };
+ 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 = '<generic error, no stack>';
+ });
+ },staticInit:function () {+ FS.ensureErrnoError();
+ FS.nameTable = new Array(4096);
+ FS.root = FS.createNode(null, '/', 16384 | 0777, 0);
+ FS.mount(MEMFS, {}, '/');+ FS.createDefaultDirectories();
+ FS.createDefaultDevices();
+ },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;
+ 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);
+ } 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) {+ 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';
+ // 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 = Math.floor(idx / this.chunkSize);
+ 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 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];
+ });
+ this._length = datalength;
+ this._chunkSize = chunkSize;
+ this.lengthKnown = true;
+ }
+ var lazyArray = new LazyUint8Array();
+ Object.defineProperty(lazyArray, "length", {+ get: function() {+ if(!this.lengthKnown) {+ this.cacheLength();
+ }
+ return this._length;
+ }
+ });
+ Object.defineProperty(lazyArray, "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;
+ }
+ // 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) {+ Browser.init();
+ // 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;
+ function processData(byteArray) {+ function finish(byteArray) {+ if (!dontCreateFile) {+ FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
+ }
+ if (onload) onload();
+ removeRunDependency('cp ' + fullname);+ }
+ 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('cp ' + fullname);+ });
+ handled = true;
+ }
+ });
+ if (!handled) finish(byteArray);
+ }
+ addRunDependency('cp ' + fullname);+ 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;
+ }};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) {+ continue;
+ }
+ 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 Browser={mainLoop:{scheduler:null,shouldPause:false,paused:false,queue:[],pause:function () {+ Browser.mainLoop.shouldPause = true;
+ },resume:function () {+ if (Browser.mainLoop.paused) {+ Browser.mainLoop.paused = false;
+ Browser.mainLoop.scheduler();
+ }
+ Browser.mainLoop.shouldPause = false;
+ },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']('');+ }
+ }
+ }},isFullScreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function () {+ if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers
+ if (Browser.initted || ENVIRONMENT_IS_WORKER) 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) {+ Runtime.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
+ var canvas = Module['canvas'];
+ canvas.requestPointerLock = canvas['requestPointerLock'] ||
+ canvas['mozRequestPointerLock'] ||
+ canvas['webkitRequestPointerLock'];
+ canvas.exitPointerLock = document['exitPointerLock'] ||
+ document['mozExitPointerLock'] ||
+ document['webkitExitPointerLock'] ||
+ function(){}; // no-op if function does not exist+ canvas.exitPointerLock = canvas.exitPointerLock.bind(document);
+ function pointerLockChange() {+ Browser.pointerLock = document['pointerLockElement'] === canvas ||
+ document['mozPointerLockElement'] === canvas ||
+ document['webkitPointerLockElement'] === canvas;
+ }
+ document.addEventListener('pointerlockchange', pointerLockChange, false);+ document.addEventListener('mozpointerlockchange', pointerLockChange, false);+ document.addEventListener('webkitpointerlockchange', pointerLockChange, false);+ if (Module['elementPointerLock']) {+ canvas.addEventListener("click", function(ev) {+ if (!Browser.pointerLock && canvas.requestPointerLock) {+ canvas.requestPointerLock();
+ ev.preventDefault();
+ }
+ }, false);
+ }
+ },createContext:function (canvas, useWebGL, setInModule, webGLContextAttributes) {+ var ctx;
+ try {+ if (useWebGL) {+ var contextAttributes = {+ antialias: false,
+ alpha: false
+ };
+ if (webGLContextAttributes) {+ for (var attribute in webGLContextAttributes) {+ contextAttributes[attribute] = webGLContextAttributes[attribute];
+ }
+ }
+ var errorInfo = '?';
+ function onContextCreationError(event) {+ errorInfo = event.statusMessage || errorInfo;
+ }
+ canvas.addEventListener('webglcontextcreationerror', onContextCreationError, false);+ try {+ ['experimental-webgl', 'webgl'].some(function(webglId) {+ return ctx = canvas.getContext(webglId, contextAttributes);
+ });
+ } finally {+ canvas.removeEventListener('webglcontextcreationerror', onContextCreationError, false);+ }
+ } else {+ ctx = canvas.getContext('2d');+ }
+ if (!ctx) throw ':(';+ } catch (e) {+ Module.print('Could not create canvas: ' + [errorInfo, e]);+ return null;
+ }
+ if (useWebGL) {+ // Set the background of the WebGL canvas to black
+ canvas.style.backgroundColor = "black";
+ // Warn on context loss
+ canvas.addEventListener('webglcontextlost', function(event) {+ alert('WebGL context lost. You will need to reload the page.');+ }, false);
+ }
+ if (setInModule) {+ Module.ctx = ctx;
+ 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) {+ Browser.lockPointer = lockPointer;
+ Browser.resizeCanvas = resizeCanvas;
+ if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = true;
+ if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas = false;
+ var canvas = Module['canvas'];
+ function fullScreenChange() {+ Browser.isFullScreen = false;
+ if ((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
+ document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
+ document['fullScreenElement'] || document['fullscreenElement']) === canvas) {+ canvas.cancelFullScreen = document['cancelFullScreen'] ||
+ document['mozCancelFullScreen'] ||
+ document['webkitCancelFullScreen'];
+ canvas.cancelFullScreen = canvas.cancelFullScreen.bind(document);
+ if (Browser.lockPointer) canvas.requestPointerLock();
+ Browser.isFullScreen = true;
+ if (Browser.resizeCanvas) Browser.setFullScreenCanvasSize();
+ } else if (Browser.resizeCanvas){+ Browser.setWindowedCanvasSize();
+ }
+ 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);+ }
+ canvas.requestFullScreen = canvas['requestFullScreen'] ||
+ canvas['mozRequestFullScreen'] ||
+ (canvas['webkitRequestFullScreen'] ? function() { canvas['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);+ canvas.requestFullScreen();
+ },requestAnimationFrame:function requestAnimationFrame(func) {+ if (typeof window === 'undefined') { // Provide fallback to setTimeout if window is undefined (e.g. in Node.js)+ setTimeout(func, 1000/60);
+ } else {+ if (!window.requestAnimationFrame) {+ window.requestAnimationFrame = window['requestAnimationFrame'] ||
+ window['mozRequestAnimationFrame'] ||
+ window['webkitRequestAnimationFrame'] ||
+ window['msRequestAnimationFrame'] ||
+ window['oRequestAnimationFrame'] ||
+ window['setTimeout'];
+ }
+ window.requestAnimationFrame(func);
+ }
+ },safeCallback:function (func) {+ return function() {+ if (!ABORT) return func.apply(null, arguments);
+ };
+ },safeRequestAnimationFrame:function (func) {+ return Browser.requestAnimationFrame(function() {+ if (!ABORT) func();
+ });
+ },safeSetTimeout:function (func, timeout) {+ return setTimeout(function() {+ if (!ABORT) func();
+ }, timeout);
+ },safeSetInterval:function (func, timeout) {+ return setInterval(function() {+ if (!ABORT) func();
+ }, 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;
+ },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,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 x, y;
+ if (event.type == 'touchstart' ||
+ event.type == 'touchend' ||
+ event.type == 'touchmove') {+ var t = event.touches.item(0);
+ if (t) {+ x = t.pageX - (window.scrollX + rect.left);
+ y = t.pageY - (window.scrollY + rect.top);
+ } else {+ return;
+ }
+ } else {+ x = event.pageX - (window.scrollX + rect.left);
+ y = event.pageY - (window.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.
+ var cw = Module["canvas"].width;
+ var ch = Module["canvas"].height;
+ 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;
+ }
+ },xhrLoad:function (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);
+ } else {+ onerror();
+ }
+ };
+ xhr.onerror = onerror;
+ xhr.send(null);
+ },asyncLoad:function (url, onload, onerror, noRunDep) {+ Browser.xhrLoad(url, function(arrayBuffer) {+ assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
+ onload(new Uint8Array(arrayBuffer));
+ if (!noRunDep) removeRunDependency('al ' + url);+ }, function(event) {+ if (onerror) {+ onerror();
+ } else {+ throw 'Loading data file "' + url + '" failed.';
+ }
+ });
+ if (!noRunDep) addRunDependency('al ' + url);+ },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'];
+ canvas.width = width;
+ canvas.height = height;
+ if (!noUpdates) Browser.updateResizeListeners();
+ },windowedWidth:0,windowedHeight:0,setFullScreenCanvasSize:function () {+ var canvas = Module['canvas'];
+ this.windowedWidth = canvas.width;
+ this.windowedHeight = canvas.height;
+ canvas.width = screen.width;
+ canvas.height = screen.height;
+ // check if SDL is available
+ if (typeof SDL != "undefined") {+ var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
+ flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
+ HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
+ }
+ Browser.updateResizeListeners();
+ },setWindowedCanvasSize:function () {+ var canvas = Module['canvas'];
+ canvas.width = this.windowedWidth;
+ canvas.height = this.windowedHeight;
+ // check if SDL is available
+ if (typeof SDL != "undefined") {+ var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
+ flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
+ HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
+ }
+ Browser.updateResizeListeners();
+ }};
+___errno_state = Runtime.staticAlloc(4); HEAP32[((___errno_state)>>2)]=0;
+Module["requestFullScreen"] = function Module_requestFullScreen(lockPointer, resizeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) };+ Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) };+ Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };+ Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() };+ Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() };+ Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() }+FS.staticInit();__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() } });__ATMAIN__.push({ func: function() { FS.ignorePermissions = false } });__ATEXIT__.push({ func: function() { FS.quit() } });Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloadedFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDevice;+__ATINIT__.unshift({ func: function() { TTY.init() } });__ATEXIT__.push({ func: function() { TTY.shutdown() } });TTY.utf8 = new Runtime.UTF8Processor();+if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); NODEFS.staticInit(); }+STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);
+staticSealed = true; // seal the static portion of memory
+STACK_MAX = STACK_BASE + 5242880;
+DYNAMIC_BASE = DYNAMICTOP = Runtime.alignMemory(STACK_MAX);
+assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack");
+var Math_min = Math.min;
+function invoke_viiiii(index,a1,a2,a3,a4,a5) {+ try {+ Module["dynCall_viiiii"](index,a1,a2,a3,a4,a5);
+ } catch(e) {+ if (typeof e !== 'number' && e !== 'longjmp') throw e;
+ asm["setThrew"](1, 0);
+ }
+}
+function invoke_vi(index,a1) {+ try {+ Module["dynCall_vi"](index,a1);
+ } catch(e) {+ if (typeof e !== 'number' && e !== 'longjmp') throw e;
+ asm["setThrew"](1, 0);
+ }
+}
+function invoke_ii(index,a1) {+ try {+ return Module["dynCall_ii"](index,a1);
+ } catch(e) {+ if (typeof e !== 'number' && e !== 'longjmp') throw e;
+ asm["setThrew"](1, 0);
+ }
+}
+function invoke_v(index) {+ try {+ Module["dynCall_v"](index);
+ } catch(e) {+ if (typeof e !== 'number' && e !== 'longjmp') throw e;
+ asm["setThrew"](1, 0);
+ }
+}
+function invoke_iii(index,a1,a2) {+ try {+ return Module["dynCall_iii"](index,a1,a2);
+ } catch(e) {+ if (typeof e !== 'number' && e !== 'longjmp') throw e;
+ asm["setThrew"](1, 0);
+ }
+}
+function asmPrintInt(x, y) {+ Module.print('int ' + x + ',' + y);// + ' ' + new Error().stack);+}
+function asmPrintFloat(x, y) {+ Module.print('float ' + x + ',' + y);// + ' ' + new Error().stack);+}
+// EMSCRIPTEN_START_ASM
+var asm=(function(global,env,buffer){"use asm";var a=new global.Int8Array(buffer);var b=new global.Int16Array(buffer);var c=new global.Int32Array(buffer);var d=new global.Uint8Array(buffer);var e=new global.Uint16Array(buffer);var f=new global.Uint32Array(buffer);var g=new global.Float32Array(buffer);var h=new global.Float64Array(buffer);var i=env.STACKTOP|0;var j=env.STACK_MAX|0;var k=env.tempDoublePtr|0;var l=env.ABORT|0;var m=+env.NaN;var n=+env.Infinity;var o=0;var p=0;var q=0;var r=0;var s=0,t=0,u=0,v=0,w=0.0,x=0,y=0,z=0,A=0.0;var B=0;var C=0;var D=0;var E=0;var F=0;var G=0;var H=0;var I=0;var J=0;var K=0;var L=global.Math.floor;var M=global.Math.abs;var N=global.Math.sqrt;var O=global.Math.pow;var P=global.Math.cos;var Q=global.Math.sin;var R=global.Math.tan;var S=global.Math.acos;var T=global.Math.asin;var U=global.Math.atan;var V=global.Math.atan2;var W=global.Math.exp;var X=global.Math.log;var Y=global.Math.ceil;var Z=global.Math.imul;var _=env.abort;var $=env.assert;var aa=env.asmPrintInt;var ab=env.asmPrintFloat;var ac=env.min;var ad=env.invoke_viiiii;var ae=env.invoke_vi;var af=env.invoke_ii;var ag=env.invoke_v;var ah=env.invoke_iii;var ai=env._llvm_lifetime_end;var aj=env._sysconf;var ak=env._sbrk;var al=env.___setErrNo;var am=env.___errno_location;var an=env._llvm_lifetime_start;var ao=env._abort;var ap=env._time;var aq=env._fflush;var ar=0.0;+// EMSCRIPTEN_START_FUNCS
+function ax(a){a=a|0;var b=0;b=i;i=i+a|0;i=i+7&-8;return b|0}function ay(){return i|0}function az(a){a=a|0;i=a}function aA(a,b){a=a|0;b=b|0;if((o|0)==0){o=a;p=b}}function aB(b){b=b|0;a[k]=a[b];a[k+1|0]=a[b+1|0];a[k+2|0]=a[b+2|0];a[k+3|0]=a[b+3|0]}function aC(b){b=b|0;a[k]=a[b];a[k+1|0]=a[b+1|0];a[k+2|0]=a[b+2|0];a[k+3|0]=a[b+3|0];a[k+4|0]=a[b+4|0];a[k+5|0]=a[b+5|0];a[k+6|0]=a[b+6|0];a[k+7|0]=a[b+7|0]}function aD(a){a=a|0;B=a}function aE(a){a=a|0;C=a}function aF(a){a=a|0;D=a}function aG(a){a=a|0;E=a}function aH(a){a=a|0;F=a}function aI(a){a=a|0;G=a}function aJ(a){a=a|0;H=a}function aK(a){a=a|0;I=a}function aL(a){a=a|0;J=a}function aM(a){a=a|0;K=a}function aN(){}function aO(b,e,f,g){b=b|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0;L1:do{if(e>>>0>3>>>0){if((a[b]|0)!=0){h=19;break}if((a[b+1|0]|0)!=0){h=19;break}i=a[b+2|0]|0;if((i&255)>>>0>=2>>>0){h=19;break}L6:do{if((e|0)!=3){j=2;k=b+3|0;l=3;m=-3;n=i;while(1){if((n<<24>>24|0)==0){o=j+1|0}else if((n<<24>>24|0)==1){if(j>>>0>1>>>0){p=k;q=0;r=0;s=0;t=l;break}else{o=0}}else{o=0}u=l+1|0;if((u|0)==(e|0)){break L6}v=~l;w=a[k]|0;j=o;k=k+1|0;l=u;m=v;n=w}while(1){n=a[p]|0;k=t+1|0;j=n<<24>>24!=0;x=(j&1^1)+s|0;y=n<<24>>24==3&(x|0)==2?1:r;if(n<<24>>24==1&x>>>0>1>>>0){h=14;break}if(j){z=x>>>0>2>>>0?1:q;A=0}else{z=q;A=x}if((k|0)==(e|0)){h=18;break}else{p=p+1|0;q=z;r=y;s=A;t=k}}if((h|0)==14){k=m+t-x|0;c[f+12>>2]=k;B=q;C=y;D=x-(x>>>0<3>>>0?x:3)|0;E=l;F=k;break L1}else if((h|0)==18){k=m+e-A|0;c[f+12>>2]=k;B=z;C=y;D=A;E=l;F=k;break L1}}}while(0);c[g>>2]=e;G=1;return G|0}else{h=19}}while(0);if((h|0)==19){c[f+12>>2]=e;B=0;C=1;D=0;E=0;F=e}e=b+E|0;b=f|0;c[b>>2]=e;c[f+4>>2]=e;c[f+8>>2]=0;c[f+16>>2]=0;e=f+12|0;c[g>>2]=D+E+F;if((B|0)!=0){G=1;return G|0}if((C|0)==0){G=0;return G|0}C=c[b>>2]|0;b=C;B=C;C=0;F=c[e>>2]|0;L35:while(1){H=B;E=C;D=F;while(1){I=D-1|0;if((D|0)==0){h=31;break L35}J=a[H]|0;if((E|0)!=2){K=E;break}if(J<<24>>24!=3){h=29;break}if((I|0)==0){G=1;h=36;break L35}g=H+1|0;if((d[g]|0)>>>0>3>>>0){G=1;h=37;break L35}else{H=g;E=0;D=I}}if((h|0)==29){h=0;if((J&255)>>>0<3>>>0){G=1;h=38;break}else{K=2}}a[b]=J;b=b+1|0;B=H+1|0;C=J<<24>>24==0?K+1|0:0;F=I}if((h|0)==31){c[e>>2]=b-H+(c[e>>2]|0);G=0;return G|0}else if((h|0)==36){return G|0}else if((h|0)==37){return G|0}else if((h|0)==38){return G|0}return 0}function aP(e,f,g,h){e=e|0;f=f|0;g=g|0;h=h|0;var j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,O=0,P=0,Q=0,R=0,S=0,T=0,U=0,V=0,W=0,X=0,Y=0,Z=0,_=0,$=0,aa=0,ab=0,ac=0,ad=0,ae=0,af=0,ag=0,ah=0,ai=0,aj=0,ak=0,al=0,am=0,an=0,ao=0,ap=0,aq=0,ar=0,as=0,at=0,au=0,av=0,aw=0;j=i;i=i+128|0;k=j|0;l=j+64|0;m=cm(e)|0;n=m>>>16;do{if(g>>>0<2>>>0){if((m|0)<0){o=1;break}if(m>>>0>201326591>>>0){p=4016+(m>>>26<<1)|0;q=25;break}if(m>>>0>16777215>>>0){p=3920+(m>>>22<<1)|0;q=25;break}if(m>>>0>2097151>>>0){p=3808+((m>>>18)-8<<1)|0;q=25;break}else{p=3744+(n<<1)|0;q=25;break}}else{if(g>>>0<4>>>0){if((m|0)<0){o=(n&16384|0)!=0?2:2082;break}if(m>>>0>268435455>>>0){p=3680+(m>>>26<<1)|0;q=25;break}if(m>>>0>33554431>>>0){p=3616+(m>>>23<<1)|0;q=25;break}else{p=3360+(m>>>18<<1)|0;q=25;break}}else{if(g>>>0<8>>>0){r=m>>>26;if((r-8|0)>>>0<56>>>0){p=3232+(r<<1)|0;q=25;break}p=2976+(m>>>22<<1)|0;q=25;break}if(g>>>0<17>>>0){p=2848+(m>>>26<<1)|0;q=25;break}r=m>>>29;if((r|0)!=0){p=2832+(r<<1)|0;q=25;break}p=2768+(m>>>24<<1)|0;q=25;break}}}while(0);do{if((q|0)==25){g=b[p>>1]|0;if(g<<16>>16==0){s=1}else{o=g&65535;break}i=j;return s|0}}while(0);p=o&31;g=m<<p;m=32-p|0;n=o>>>11;if(n>>>0>h>>>0){s=1;i=j;return s|0}r=o>>>5&63;do{if((n|0)==0){t=m;u=0}else{if((r|0)==0){v=m;w=g;x=0}else{do{if(m>>>0<r>>>0){if((cn(e,p)|0)==-1){s=1;i=j;return s|0}else{y=32;z=cm(e)|0;break}}else{y=m;z=g}}while(0);A=z>>>((32-r|0)>>>0);B=z<<r;C=1<<r-1;D=0;do{c[k+(D<<2)>>2]=(C&A|0)!=0?-1:1;C=C>>>1;D=D+1|0;}while((C|0)!=0);v=y-r|0;w=B;x=D}C=r>>>0<3>>>0;L55:do{if(x>>>0<n>>>0){A=x;E=o>>>0>22527>>>0&C&1;F=w;G=v;L57:while(1){if(G>>>0<16>>>0){if((cn(e,32-G|0)|0)==-1){s=1;q=130;break}H=32;I=cm(e)|0}else{H=G;I=F\ No newline at end of file
+// EMSCRIPTEN_END_FUNCS
+var as=[cN,cN,bY,cN,bZ,cN,cN,cN];var at=[cO,cO];var au=[cP,cP];var av=[cQ,cQ];var aw=[cR,cR];return{_h264bsdCroppingParams:a5,_strlen:cH,_h264bsdInit:a_,_h264bsdNextOutputPicture:a1,_h264bsdAlloc:a6,_h264bsdShutdown:a0,_memset:cF,_malloc:cD,_memcpy:cG,_h264bsdPicWidth:a2,_h264bsdFree:a7,_free:cE,_h264bsdCheckValidParamSets:a4,_h264bsdDecode:a$,_h264bsdPicHeight:a3,runPostSets:aN,stackAlloc:ax,stackSave:ay,stackRestore:az,setThrew:aA,setTempRet0:aD,setTempRet1:aE,setTempRet2:aF,setTempRet3:aG,setTempRet4:aH,setTempRet5:aI,setTempRet6:aJ,setTempRet7:aK,setTempRet8:aL,setTempRet9:aM,dynCall_viiiii:cI,dynCall_vi:cJ,dynCall_ii:cK,dynCall_v:cL,dynCall_iii:cM}})+// EMSCRIPTEN_END_ASM
+({ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array }, { "abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": asmPrintFloat, "min": Math_min, "invoke_viiiii": invoke_viiiii, "invoke_vi": invoke_vi, "invoke_ii": invoke_ii, "invoke_v": invoke_v, "invoke_iii": invoke_iii, "_llvm_lifetime_end": _llvm_lifetime_end, "_sysconf": _sysconf, "_sbrk": _sbrk, "___setErrNo": ___setErrNo, "___errno_location": ___errno_location, "_llvm_lifetime_start": _llvm_lifetime_start, "_abort": _abort, "_time": _time, "_fflush": _fflush, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "NaN": NaN, "Infinity": Infinity }, buffer);+var _h264bsdCroppingParams = Module["_h264bsdCroppingParams"] = asm["_h264bsdCroppingParams"];
+var _strlen = Module["_strlen"] = asm["_strlen"];
+var _h264bsdInit = Module["_h264bsdInit"] = asm["_h264bsdInit"];
+var _h264bsdNextOutputPicture = Module["_h264bsdNextOutputPicture"] = asm["_h264bsdNextOutputPicture"];
+var _h264bsdAlloc = Module["_h264bsdAlloc"] = asm["_h264bsdAlloc"];
+var _h264bsdShutdown = Module["_h264bsdShutdown"] = asm["_h264bsdShutdown"];
+var _memset = Module["_memset"] = asm["_memset"];
+var _malloc = Module["_malloc"] = asm["_malloc"];
+var _memcpy = Module["_memcpy"] = asm["_memcpy"];
+var _h264bsdPicWidth = Module["_h264bsdPicWidth"] = asm["_h264bsdPicWidth"];
+var _h264bsdFree = Module["_h264bsdFree"] = asm["_h264bsdFree"];
+var _free = Module["_free"] = asm["_free"];
+var _h264bsdCheckValidParamSets = Module["_h264bsdCheckValidParamSets"] = asm["_h264bsdCheckValidParamSets"];
+var _h264bsdDecode = Module["_h264bsdDecode"] = asm["_h264bsdDecode"];
+var _h264bsdPicHeight = Module["_h264bsdPicHeight"] = asm["_h264bsdPicHeight"];
+var runPostSets = Module["runPostSets"] = asm["runPostSets"];
+var dynCall_viiiii = Module["dynCall_viiiii"] = asm["dynCall_viiiii"];
+var dynCall_vi = Module["dynCall_vi"] = asm["dynCall_vi"];
+var dynCall_ii = Module["dynCall_ii"] = asm["dynCall_ii"];
+var dynCall_v = Module["dynCall_v"] = asm["dynCall_v"];
+var dynCall_iii = Module["dynCall_iii"] = asm["dynCall_iii"];
+Runtime.stackAlloc = function(size) { return asm['stackAlloc'](size) };+Runtime.stackSave = function() { return asm['stackSave']() };+Runtime.stackRestore = function(top) { asm['stackRestore'](top) };+// Warning: printing of i64 values may be slightly rounded! No deep i64 math used, so precise i64 code not included
+var i64Math = null;
+// === Auto-generated postamble setup entry stuff ===
+if (memoryInitializer) {+ function applyData(data) {+ HEAPU8.set(data, STATIC_BASE);
+ }
+ if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {+ applyData(Module['readBinary'](memoryInitializer));
+ } else {+ addRunDependency('memory initializer');+ Browser.asyncLoad(memoryInitializer, function(data) {+ applyData(data);
+ removeRunDependency('memory initializer');+ }, function(data) {+ throw 'could not load memory initializer ' + memoryInitializer;
+ });
+ }
+}
+function ExitStatus(status) {+ this.name = "ExitStatus";
+ this.message = "Program terminated with exit(" + status + ")";+ this.status = status;
+};
+ExitStatus.prototype = new Error();
+ExitStatus.prototype.constructor = ExitStatus;
+var initialStackTop;
+var preloadStartTime = null;
+var calledMain = false;
+dependenciesFulfilled = function runCaller() {+ // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
+ if (!Module['calledRun'] && shouldRunNow) run();
+ if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
+}
+Module['callMain'] = Module.callMain = function callMain(args) {+ assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
+ assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
+ args = args || [];
+ if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {+ Module.printErr('preload time: ' + (Date.now() - preloadStartTime) + ' ms');+ }
+ ensureInitRuntime();
+ var argc = args.length+1;
+ function pad() {+ for (var i = 0; i < 4-1; i++) {+ argv.push(0);
+ }
+ }
+ var argv = [allocate(intArrayFromString("/bin/this.program"), 'i8', ALLOC_NORMAL) ];+ pad();
+ for (var i = 0; i < argc-1; i = i + 1) {+ argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL));
+ pad();
+ }
+ argv.push(0);
+ argv = allocate(argv, 'i32', ALLOC_NORMAL);
+ initialStackTop = STACKTOP;
+ try {+ var ret = Module['_main'](argc, argv, 0);
+ // if we're not running an evented main loop, it's time to exit
+ if (!Module['noExitRuntime']) {+ exit(ret);
+ }
+ }
+ catch(e) {+ if (e instanceof ExitStatus) {+ // exit() throws this once it's done to make sure execution
+ // has been stopped completely
+ return;
+ } else if (e == 'SimulateInfiniteLoop') {+ // running an evented main loop, don't immediately exit
+ Module['noExitRuntime'] = true;
+ return;
+ } else {+ if (e && typeof e === 'object' && e.stack) Module.printErr('exception thrown: ' + [e, e.stack]);+ throw e;
+ }
+ } finally {+ calledMain = true;
+ }
+}
+function run(args) {+ args = args || Module['arguments'];
+ if (preloadStartTime === null) preloadStartTime = Date.now();
+ if (runDependencies > 0) {+ Module.printErr('run() called, but dependencies remain, so not running');+ return;
+ }
+ preRun();
+ if (runDependencies > 0) {+ // a preRun added a dependency, run will be called later
+ return;
+ }
+ function doRun() {+ ensureInitRuntime();
+ preMain();
+ Module['calledRun'] = true;
+ if (Module['_main'] && shouldRunNow) {+ Module['callMain'](args);
+ }
+ postRun();
+ }
+ if (Module['setStatus']) {+ Module['setStatus']('Running...');+ setTimeout(function() {+ setTimeout(function() {+ Module['setStatus']('');+ }, 1);
+ if (!ABORT) doRun();
+ }, 1);
+ } else {+ doRun();
+ }
+}
+Module['run'] = Module.run = run;
+function exit(status) {+ ABORT = true;
+ EXITSTATUS = status;
+ STACKTOP = initialStackTop;
+ // exit the runtime
+ exitRuntime();
+ // TODO We should handle this differently based on environment.
+ // In the browser, the best we can do is throw an exception
+ // to halt execution, but in node we could process.exit and
+ // I'd imagine SM shell would have something equivalent.
+ // This would let us set a proper exit status (which
+ // would be great for checking test exit statuses).
+ // https://github.com/kripken/emscripten/issues/1371
+ // throw an exception to halt the current execution
+ throw new ExitStatus(status);
+}
+Module['exit'] = Module.exit = exit;
+function abort(text) {+ if (text) {+ Module.print(text);
+ Module.printErr(text);
+ }
+ ABORT = true;
+ EXITSTATUS = 1;
+ throw 'abort() at ' + stackTrace();
+}
+Module['abort'] = Module.abort = abort;
+// {{PRE_RUN_ADDITIONS}}+if (Module['preInit']) {+ if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
+ while (Module['preInit'].length > 0) {+ Module['preInit'].pop()();
+ }
+}
+// shouldRunNow refers to calling main(), not run().
+var shouldRunNow = true;
+if (Module['noInitialRun']) {+ shouldRunNow = false;
+}
+run();
+// {{POST_RUN_ADDITIONS}}+// {{MODULE_ADDITIONS}}+
+eval(function(p,a,c,k,e,r){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)r[e(c)]=k[c]||e(c);k=[function(e){return r[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('9 17={3i:\'0.1.3\',16:1e-6};l v(){}v.23={e:l(i){8(i<1||i>7.4.q)?w:7.4[i-1]},2R:l(){8 7.4.q},1u:l(){8 F.1x(7.2u(7))},24:l(a){9 n=7.4.q;9 V=a.4||a;o(n!=V.q){8 1L}J{o(F.13(7.4[n-1]-V[n-1])>17.16){8 1L}}H(--n);8 2x},1q:l(){8 v.u(7.4)},1b:l(a){9 b=[];7.28(l(x,i){b.19(a(x,i))});8 v.u(b)},28:l(a){9 n=7.4.q,k=n,i;J{i=k-n;a(7.4[i],i+1)}H(--n)},2q:l(){9 r=7.1u();o(r===0){8 7.1q()}8 7.1b(l(x){8 x/r})},1C:l(a){9 V=a.4||a;9 n=7.4.q,k=n,i;o(n!=V.q){8 w}9 b=0,1D=0,1F=0;7.28(l(x,i){b+=x*V[i-1];1D+=x*x;1F+=V[i-1]*V[i-1]});1D=F.1x(1D);1F=F.1x(1F);o(1D*1F===0){8 w}9 c=b/(1D*1F);o(c<-1){c=-1}o(c>1){c=1}8 F.37(c)},1m:l(a){9 b=7.1C(a);8(b===w)?w:(b<=17.16)},34:l(a){9 b=7.1C(a);8(b===w)?w:(F.13(b-F.1A)<=17.16)},2k:l(a){9 b=7.2u(a);8(b===w)?w:(F.13(b)<=17.16)},2j:l(a){9 V=a.4||a;o(7.4.q!=V.q){8 w}8 7.1b(l(x,i){8 x+V[i-1]})},2C:l(a){9 V=a.4||a;o(7.4.q!=V.q){8 w}8 7.1b(l(x,i){8 x-V[i-1]})},22:l(k){8 7.1b(l(x){8 x*k})},x:l(k){8 7.22(k)},2u:l(a){9 V=a.4||a;9 i,2g=0,n=7.4.q;o(n!=V.q){8 w}J{2g+=7.4[n-1]*V[n-1]}H(--n);8 2g},2f:l(a){9 B=a.4||a;o(7.4.q!=3||B.q!=3){8 w}9 A=7.4;8 v.u([(A[1]*B[2])-(A[2]*B[1]),(A[2]*B[0])-(A[0]*B[2]),(A[0]*B[1])-(A[1]*B[0])])},2A:l(){9 m=0,n=7.4.q,k=n,i;J{i=k-n;o(F.13(7.4[i])>F.13(m)){m=7.4[i]}}H(--n);8 m},2Z:l(x){9 a=w,n=7.4.q,k=n,i;J{i=k-n;o(a===w&&7.4[i]==x){a=i+1}}H(--n);8 a},3g:l(){8 S.2X(7.4)},2d:l(){8 7.1b(l(x){8 F.2d(x)})},2V:l(x){8 7.1b(l(y){8(F.13(y-x)<=17.16)?x:y})},1o:l(a){o(a.K){8 a.1o(7)}9 V=a.4||a;o(V.q!=7.4.q){8 w}9 b=0,2b;7.28(l(x,i){2b=x-V[i-1];b+=2b*2b});8 F.1x(b)},3a:l(a){8 a.1h(7)},2T:l(a){8 a.1h(7)},1V:l(t,a){9 V,R,x,y,z;2S(7.4.q){27 2:V=a.4||a;o(V.q!=2){8 w}R=S.1R(t).4;x=7.4[0]-V[0];y=7.4[1]-V[1];8 v.u([V[0]+R[0][0]*x+R[0][1]*y,V[1]+R[1][0]*x+R[1][1]*y]);1I;27 3:o(!a.U){8 w}9 C=a.1r(7).4;R=S.1R(t,a.U).4;x=7.4[0]-C[0];y=7.4[1]-C[1];z=7.4[2]-C[2];8 v.u([C[0]+R[0][0]*x+R[0][1]*y+R[0][2]*z,C[1]+R[1][0]*x+R[1][1]*y+R[1][2]*z,C[2]+R[2][0]*x+R[2][1]*y+R[2][2]*z]);1I;2P:8 w}},1t:l(a){o(a.K){9 P=7.4.2O();9 C=a.1r(P).4;8 v.u([C[0]+(C[0]-P[0]),C[1]+(C[1]-P[1]),C[2]+(C[2]-(P[2]||0))])}1d{9 Q=a.4||a;o(7.4.q!=Q.q){8 w}8 7.1b(l(x,i){8 Q[i-1]+(Q[i-1]-x)})}},1N:l(){9 V=7.1q();2S(V.4.q){27 3:1I;27 2:V.4.19(0);1I;2P:8 w}8 V},2n:l(){8\'[\'+7.4.2K(\', \')+\']\'},26:l(a){7.4=(a.4||a).2O();8 7}};v.u=l(a){9 V=25 v();8 V.26(a)};v.i=v.u([1,0,0]);v.j=v.u([0,1,0]);v.k=v.u([0,0,1]);v.2J=l(n){9 a=[];J{a.19(F.2F())}H(--n);8 v.u(a)};v.1j=l(n){9 a=[];J{a.19(0)}H(--n);8 v.u(a)};l S(){}S.23={e:l(i,j){o(i<1||i>7.4.q||j<1||j>7.4[0].q){8 w}8 7.4[i-1][j-1]},33:l(i){o(i>7.4.q){8 w}8 v.u(7.4[i-1])},2E:l(j){o(j>7.4[0].q){8 w}9 a=[],n=7.4.q,k=n,i;J{i=k-n;a.19(7.4[i][j-1])}H(--n);8 v.u(a)},2R:l(){8{2D:7.4.q,1p:7.4[0].q}},2D:l(){8 7.4.q},1p:l(){8 7.4[0].q},24:l(a){9 M=a.4||a;o(1g(M[0][0])==\'1f\'){M=S.u(M).4}o(7.4.q!=M.q||7.4[0].q!=M[0].q){8 1L}9 b=7.4.q,15=b,i,G,10=7.4[0].q,j;J{i=15-b;G=10;J{j=10-G;o(F.13(7.4[i][j]-M[i][j])>17.16){8 1L}}H(--G)}H(--b);8 2x},1q:l(){8 S.u(7.4)},1b:l(a){9 b=[],12=7.4.q,15=12,i,G,10=7.4[0].q,j;J{i=15-12;G=10;b[i]=[];J{j=10-G;b[i][j]=a(7.4[i][j],i+1,j+1)}H(--G)}H(--12);8 S.u(b)},2i:l(a){9 M=a.4||a;o(1g(M[0][0])==\'1f\'){M=S.u(M).4}8(7.4.q==M.q&&7.4[0].q==M[0].q)},2j:l(a){9 M=a.4||a;o(1g(M[0][0])==\'1f\'){M=S.u(M).4}o(!7.2i(M)){8 w}8 7.1b(l(x,i,j){8 x+M[i-1][j-1]})},2C:l(a){9 M=a.4||a;o(1g(M[0][0])==\'1f\'){M=S.u(M).4}o(!7.2i(M)){8 w}8 7.1b(l(x,i,j){8 x-M[i-1][j-1]})},2B:l(a){9 M=a.4||a;o(1g(M[0][0])==\'1f\'){M=S.u(M).4}8(7.4[0].q==M.q)},22:l(a){o(!a.4){8 7.1b(l(x){8 x*a})}9 b=a.1u?2x:1L;9 M=a.4||a;o(1g(M[0][0])==\'1f\'){M=S.u(M).4}o(!7.2B(M)){8 w}9 d=7.4.q,15=d,i,G,10=M[0].q,j;9 e=7.4[0].q,4=[],21,20,c;J{i=15-d;4[i]=[];G=10;J{j=10-G;21=0;20=e;J{c=e-20;21+=7.4[i][c]*M[c][j]}H(--20);4[i][j]=21}H(--G)}H(--d);9 M=S.u(4);8 b?M.2E(1):M},x:l(a){8 7.22(a)},32:l(a,b,c,d){9 e=[],12=c,i,G,j;9 f=7.4.q,1p=7.4\ No newline at end of file
+// augment Sylvester some
+Matrix.Translation = function (v)
+{+ if (v.elements.length == 2) {+ var r = Matrix.I(3);
+ r.elements[2][0] = v.elements[0];
+ r.elements[2][1] = v.elements[1];
+ return r;
+ }
+
+ if (v.elements.length == 3) {+ var r = Matrix.I(4);
+ r.elements[0][3] = v.elements[0];
+ r.elements[1][3] = v.elements[1];
+ r.elements[2][3] = v.elements[2];
+ return r;
+ }
+
+ throw "Invalid length for Translation";
+}
+
+Matrix.prototype.flatten = function ()
+{+ var result = [];
+ if (this.elements.length == 0)
+ return [];
+
+
+ for (var j = 0; j < this.elements[0].length; j++)
+ for (var i = 0; i < this.elements.length; i++)
+ result.push(this.elements[i][j]);
+ return result;
+}
+
+Matrix.prototype.ensure4x4 = function()
+{+ if (this.elements.length == 4 &&
+ this.elements[0].length == 4)
+ return this;
+
+ if (this.elements.length > 4 ||
+ this.elements[0].length > 4)
+ return null;
+
+ for (var i = 0; i < this.elements.length; i++) {+ for (var j = this.elements[i].length; j < 4; j++) {+ if (i == j)
+ this.elements[i].push(1);
+ else
+ this.elements[i].push(0);
+ }
+ }
+
+ for (var i = this.elements.length; i < 4; i++) {+ if (i == 0)
+ this.elements.push([1, 0, 0, 0]);
+ else if (i == 1)
+ this.elements.push([0, 1, 0, 0]);
+ else if (i == 2)
+ this.elements.push([0, 0, 1, 0]);
+ else if (i == 3)
+ this.elements.push([0, 0, 0, 1]);
+ }
+
+ return this;
+};
+
+Matrix.prototype.make3x3 = function()
+{+ if (this.elements.length != 4 ||
+ this.elements[0].length != 4)
+ return null;
+
+ return Matrix.create([[this.elements[0][0], this.elements[0][1], this.elements[0][2]],
+ [this.elements[1][0], this.elements[1][1], this.elements[1][2]],
+ [this.elements[2][0], this.elements[2][1], this.elements[2][2]]]);
+};
+
+Vector.prototype.flatten = function ()
+{+ return this.elements;
+};
+
+function mht(m) {+ var s = "";
+ if (m.length == 16) {+ for (var i = 0; i < 4; i++) {+ s += "<span style='font-family: monospace'>[" + m[i*4+0].toFixed(4) + "," + m[i*4+1].toFixed(4) + "," + m[i*4+2].toFixed(4) + "," + m[i*4+3].toFixed(4) + "]</span><br>";
+ }
+ } else if (m.length == 9) {+ for (var i = 0; i < 3; i++) {+ s += "<span style='font-family: monospace'>[" + m[i*3+0].toFixed(4) + "," + m[i*3+1].toFixed(4) + "," + m[i*3+2].toFixed(4) + "]</font><br>";
+ }
+ } else {+ return m.toString();
+ }
+ return s;
+}
+
+//
+// gluLookAt
+//
+function makeLookAt(ex, ey, ez,
+ cx, cy, cz,
+ ux, uy, uz)
+{+ var eye = $V([ex, ey, ez]);
+ var center = $V([cx, cy, cz]);
+ var up = $V([ux, uy, uz]);
+
+ var mag;
+
+ var z = eye.subtract(center).toUnitVector();
+ var x = up.cross(z).toUnitVector();
+ var y = z.cross(x).toUnitVector();
+
+ var m = $M([[x.e(1), x.e(2), x.e(3), 0],
+ [y.e(1), y.e(2), y.e(3), 0],
+ [z.e(1), z.e(2), z.e(3), 0],
+ [0, 0, 0, 1]]);
+
+ var t = $M([[1, 0, 0, -ex],
+ [0, 1, 0, -ey],
+ [0, 0, 1, -ez],
+ [0, 0, 0, 1]]);
+ return m.x(t);
+}
+
+//
+// glOrtho
+//
+function makeOrtho(left, right,
+ bottom, top,
+ znear, zfar)
+{+ var tx = -(right+left)/(right-left);
+ var ty = -(top+bottom)/(top-bottom);
+ var tz = -(zfar+znear)/(zfar-znear);
+
+ return $M([[2/(right-left), 0, 0, tx],
+ [0, 2/(top-bottom), 0, ty],
+ [0, 0, -2/(zfar-znear), tz],
+ [0, 0, 0, 1]]);
+}
+
+//
+// gluPerspective
+//
+function makePerspective(fovy, aspect, znear, zfar)
+{+ var ymax = znear * Math.tan(fovy * Math.PI / 360.0);
+ var ymin = -ymax;
+ var xmin = ymin * aspect;
+ var xmax = ymax * aspect;
+
+ return makeFrustum(xmin, xmax, ymin, ymax, znear, zfar);
+}
+
+//
+// glFrustum
+//
+function makeFrustum(left, right,
+ bottom, top,
+ znear, zfar)
+{+ var X = 2*znear/(right-left);
+ var Y = 2*znear/(top-bottom);
+ var A = (right+left)/(right-left);
+ var B = (top+bottom)/(top-bottom);
+ var C = -(zfar+znear)/(zfar-znear);
+ var D = -2*zfar*znear/(zfar-znear);
+
+ return $M([[X, 0, A, 0],
+ [0, Y, B, 0],
+ [0, 0, C, D],
+ [0, 0, -1, 0]]);
+}
+
+//
+// glOrtho
+//
+function makeOrtho(left, right, bottom, top, znear, zfar)
+{+ var tx = - (right + left) / (right - left);
+ var ty = - (top + bottom) / (top - bottom);
+ var tz = - (zfar + znear) / (zfar - znear);
+
+ return $M([[2 / (right - left), 0, 0, tx],
+ [0, 2 / (top - bottom), 0, ty],
+ [0, 0, -2 / (zfar - znear), tz],
+ [0, 0, 0, 1]]);
+}
+
+
+'use strict';
+
+function error(message) {+ console.error(message);
+ console.trace();
+}
+
+function assert(condition, message) {+ if (!condition) {+ error(message);
+ }
+}
+
+function isPowerOfTwo(x) {+ return (x & (x - 1)) == 0;
+}
+
+/**
+ * Joins a list of lines using a newline separator, not the fastest
+ * thing in the world but good enough for initialization code.
+ */
+function text(lines) {+ return lines.join("\n");+}
+
+/**
+ * Rounds up to the next highest power of two.
+ */
+function nextHighestPowerOfTwo(x) {+ --x;
+ for (var i = 1; i < 32; i <<= 1) {+ x = x | x >> i;
+ }
+ return x + 1;
+}
+
+/**
+ * Represents a 2-dimensional size value.
+ */
+var Size = (function size() {+ function constructor(w, h) {+ this.w = w;
+ this.h = h;
+ }
+ constructor.prototype = {+ toString: function () {+ return "(" + this.w + ", " + this.h + ")";+ },
+ getHalfSize: function() {+ return new Size(this.w >>> 1, this.h >>> 1);
+ },
+ length: function() {+ return this.w * this.h;
+ }
+ }
+ return constructor;
+})();
+
+/**
+ * Creates a new prototype object derived from another objects prototype along with a list of additional properties.
+ *
+ * @param base object whose prototype to use as the created prototype object's prototype
+ * @param properties additional properties to add to the created prototype object
+ */
+function inherit(base, properties) {+ var prot = Object.create(base.prototype);
+ for (var p in properties) {+ prot[p] = properties[p];
+ }
+ return prot;
+}
+/*
+ * This file wraps several WebGL constructs and provides a simple, single texture based WebGLCanvas as well as a
+ * specialized YUVWebGLCanvas that can handle YUV->RGB conversion.
+ */
+
+/**
+ * Represents a WebGL shader script.
+ */
+var Script = (function script() {+ function constructor() {}+
+ constructor.createFromElementId = function(id) {+ var script = document.getElementById(id);
+
+ // Didn't find an element with the specified ID, abort.
+ assert(script , "Could not find shader with ID: " + id);
+
+ // Walk through the source element's children, building the shader source string.
+ var source = "";
+ var currentChild = script .firstChild;
+ while(currentChild) {+ if (currentChild.nodeType == 3) {+ source += currentChild.textContent;
+ }
+ currentChild = currentChild.nextSibling;
+ }
+
+ var res = new constructor();
+ res.type = script.type;
+ res.source = source;
+ return res;
+ };
+
+ constructor.createFromSource = function(type, source) {+ var res = new constructor();
+ res.type = type;
+ res.source = source;
+ return res;
+ }
+ return constructor;
+})();
+
+/**
+ * Represents a WebGL shader object and provides a mechanism to load shaders from HTML
+ * script tags.
+ */
+var Shader = (function shader() {+ function constructor(gl, script) {+
+ // Now figure out what type of shader script we have, based on its MIME type.
+ if (script.type == "x-shader/x-fragment") {+ this.shader = gl.createShader(gl.FRAGMENT_SHADER);
+ } else if (script.type == "x-shader/x-vertex") {+ this.shader = gl.createShader(gl.VERTEX_SHADER);
+ } else {+ error("Unknown shader type: " + script.type);+ return;
+ }
+
+ // Send the source to the shader object.
+ gl.shaderSource(this.shader, script.source);
+
+ // Compile the shader program.
+ gl.compileShader(this.shader);
+
+ // See if it compiled successfully.
+ if (!gl.getShaderParameter(this.shader, gl.COMPILE_STATUS)) {+ error("An error occurred compiling the shaders: " + gl.getShaderInfoLog(this.shader));+ return;
+ }
+ }
+ return constructor;
+})();
+
+var Program = (function () {+ function constructor(gl) {+ this.gl = gl;
+ this.program = this.gl.createProgram();
+ }
+ constructor.prototype = {+ attach: function (shader) {+ this.gl.attachShader(this.program, shader.shader);
+ },
+ link: function () {+ this.gl.linkProgram(this.program);
+ // If creating the shader program failed, alert.
+ assert(this.gl.getProgramParameter(this.program, this.gl.LINK_STATUS),
+ "Unable to initialize the shader program.");
+ },
+ use: function () {+ this.gl.useProgram(this.program);
+ },
+ getAttributeLocation: function(name) {+ return this.gl.getAttribLocation(this.program, name);
+ },
+ setMatrixUniform: function(name, array) {+ var uniform = this.gl.getUniformLocation(this.program, name);
+ this.gl.uniformMatrix4fv(uniform, false, array);
+ }
+ };
+ return constructor;
+})();
+
+/**
+ * Represents a WebGL texture object.
+ */
+var Texture = (function texture() {+ function constructor(gl, size, format) {+ this.gl = gl;
+ this.size = size;
+ this.texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_2D, this.texture);
+ this.format = format ? format : gl.LUMINANCE;
+ gl.texImage2D(gl.TEXTURE_2D, 0, this.format, size.w, size.h, 0, this.format, gl.UNSIGNED_BYTE, null);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+ }
+ var textureIDs = null;
+ constructor.prototype = {+ fill: function(textureData, useTexSubImage2D) {+ var gl = this.gl;
+ assert(textureData.length >= this.size.w * this.size.h,
+ "Texture size mismatch, data:" + textureData.length + ", texture: " + this.size.w * this.size.h);
+ gl.bindTexture(gl.TEXTURE_2D, this.texture);
+ if (useTexSubImage2D) {+ gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, this.size.w , this.size.h, this.format, gl.UNSIGNED_BYTE, textureData);
+ } else {+ // texImage2D seems to be faster, thus keeping it as the default
+ gl.texImage2D(gl.TEXTURE_2D, 0, this.format, this.size.w, this.size.h, 0, this.format, gl.UNSIGNED_BYTE, textureData);
+ }
+ },
+ bind: function(n, program, name) {+ var gl = this.gl;
+ if (!textureIDs) {+ textureIDs = [gl.TEXTURE0, gl.TEXTURE1, gl.TEXTURE2];
+ }
+ gl.activeTexture(textureIDs[n]);
+ gl.bindTexture(gl.TEXTURE_2D, this.texture);
+ gl.uniform1i(gl.getUniformLocation(program.program, name), n);
+ }
+ };
+ return constructor;
+})();
+
+/**
+ * Generic WebGL backed canvas that sets up: a quad to paint a texture on, appropriate vertex/fragment shaders,
+ * scene parameters and other things. Specialized versions of this class can be created by overriding several
+ * initialization methods.
+ *
+ * <code>
+ * var canvas = new WebGLCanvas(document.getElementById('canvas'), new Size(512, 512);+ * canvas.texture.fill(data);
+ * canvas.drawScene();
+ * </code>
+ */
+var WebGLCanvas = (function () {+
+ var vertexShaderScript = Script.createFromSource("x-shader/x-vertex", text([+ "attribute vec3 aVertexPosition;",
+ "attribute vec2 aTextureCoord;",
+ "uniform mat4 uMVMatrix;",
+ "uniform mat4 uPMatrix;",
+ "varying highp vec2 vTextureCoord;",
+ "void main(void) {",+ " gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0);",
+ " vTextureCoord = aTextureCoord;",
+ "}"
+ ]));
+
+ var fragmentShaderScript = Script.createFromSource("x-shader/x-fragment", text([+ "precision highp float;",
+ "varying highp vec2 vTextureCoord;",
+ "uniform sampler2D texture;",
+ "void main(void) {",+ " gl_FragColor = texture2D(texture, vTextureCoord);",
+ "}"
+ ]));
+
+ function constructor(canvas, size, useFrameBuffer) {+ this.canvas = canvas;
+ this.size = size;
+ this.canvas.width = size.w;
+ this.canvas.height = size.h;
+
+ this.onInitWebGL();
+ this.onInitShaders();
+ initBuffers.call(this);
+ if (useFrameBuffer) {+ initFramebuffer.call(this);
+ }
+ this.onInitTextures();
+ initScene.call(this);
+ }
+
+ /**
+ * Initialize a frame buffer so that we can render off-screen.
+ */
+ function initFramebuffer() {+ var gl = this.gl;
+
+ // Create framebuffer object and texture.
+ this.framebuffer = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
+ this.framebufferTexture = new Texture(this.gl, this.size, gl.RGB);
+
+ // Create and allocate renderbuffer for depth data.
+ var renderbuffer = gl.createRenderbuffer();
+ gl.bindRenderbuffer(gl.RENDERBUFFER, renderbuffer);
+ gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, this.size.w, this.size.h);
+
+ // Attach texture and renderbuffer to the framebuffer.
+ gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.framebufferTexture.texture, 0);
+ gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, renderbuffer);
+ }
+
+ /**
+ * Initialize vertex and texture coordinate buffers for a plane.
+ */
+ function initBuffers() {+ var tmp;
+ var gl = this.gl;
+
+ // Create vertex position buffer.
+ this.quadVPBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, this.quadVPBuffer);
+ tmp = [
+ 1.0, 1.0, 0.0,
+ -1.0, 1.0, 0.0,
+ 1.0, -1.0, 0.0,
+ -1.0, -1.0, 0.0];
+
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(tmp), gl.STATIC_DRAW);
+ this.quadVPBuffer.itemSize = 3;
+ this.quadVPBuffer.numItems = 4;
+
+ /*
+ +--------------------+
+ | -1,1 (1) | 1,1 (0)
+ | |
+ | |
+ | |
+ | |
+ | |
+ | -1,-1 (3) | 1,-1 (2)
+ +--------------------+
+ */
+
+ var scaleX = 1.0;
+ var scaleY = 1.0;
+
+ // Create vertex texture coordinate buffer.
+ this.quadVTCBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, this.quadVTCBuffer);
+ tmp = [
+ scaleX, 0.0,
+ 0.0, 0.0,
+ scaleX, scaleY,
+ 0.0, scaleY,
+ ];
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(tmp), gl.STATIC_DRAW);
+ }
+
+ function mvIdentity() {+ this.mvMatrix = Matrix.I(4);
+ }
+
+ function mvMultiply(m) {+ this.mvMatrix = this.mvMatrix.x(m);
+ }
+
+ function mvTranslate(m) {+ mvMultiply.call(this, Matrix.Translation($V([m[0], m[1], m[2]])).ensure4x4());
+ }
+
+ function setMatrixUniforms() {+ this.program.setMatrixUniform("uPMatrix", new Float32Array(this.perspectiveMatrix.flatten()));+ this.program.setMatrixUniform("uMVMatrix", new Float32Array(this.mvMatrix.flatten()));+ }
+
+ function initScene() {+ var gl = this.gl;
+
+ // Establish the perspective with which we want to view the
+ // scene. Our field of view is 45 degrees, with a width/height
+ // ratio of 640:480, and we only want to see objects between 0.1 units
+ // and 100 units away from the camera.
+
+ this.perspectiveMatrix = makePerspective(45, 1, 0.1, 100.0);
+
+ // Set the drawing position to the "identity" point, which is
+ // the center of the scene.
+ mvIdentity.call(this);
+
+ // Now move the drawing position a bit to where we want to start
+ // drawing the square.
+ mvTranslate.call(this, [0.0, 0.0, -2.4]);
+
+ // Draw the cube by binding the array buffer to the cube's vertices
+ // array, setting attributes, and pushing it to GL.
+ gl.bindBuffer(gl.ARRAY_BUFFER, this.quadVPBuffer);
+ gl.vertexAttribPointer(this.vertexPositionAttribute, 3, gl.FLOAT, false, 0, 0);
+
+ // Set the texture coordinates attribute for the vertices.
+
+ gl.bindBuffer(gl.ARRAY_BUFFER, this.quadVTCBuffer);
+ gl.vertexAttribPointer(this.textureCoordAttribute, 2, gl.FLOAT, false, 0, 0);
+
+ this.onInitSceneTextures();
+
+ setMatrixUniforms.call(this);
+
+ if (this.framebuffer) {+ console.log("Bound Frame Buffer");+ gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
+ }
+ }
+
+ constructor.prototype = {+ toString: function() {+ return "WebGLCanvas Size: " + this.size;
+ },
+ checkLastError: function (operation) {+ var err = this.gl.getError();
+ if (err != this.gl.NO_ERROR) {+ var name = this.glNames[err];
+ name = (name !== undefined) ? name + "(" + err + ")":+ ("Unknown WebGL ENUM (0x" + value.toString(16) + ")");+ if (operation) {+ console.log("WebGL Error: %s, %s", operation, name);+ } else {+ console.log("WebGL Error: %s", name);+ }
+ console.trace();
+ }
+ },
+ onInitWebGL: function () {+ try {+ this.gl = this.canvas.getContext("experimental-webgl");+ } catch(e) {}+
+ if (!this.gl) {+ error("Unable to initialize WebGL. Your browser may not support it.");+ }
+ if (this.glNames) {+ return;
+ }
+ this.glNames = {};+ for (var propertyName in this.gl) {+ if (typeof this.gl[propertyName] == 'number') {+ this.glNames[this.gl[propertyName]] = propertyName;
+ }
+ }
+ },
+ onInitShaders: function() {+ this.program = new Program(this.gl);
+ this.program.attach(new Shader(this.gl, vertexShaderScript));
+ this.program.attach(new Shader(this.gl, fragmentShaderScript));
+ this.program.link();
+ this.program.use();
+ this.vertexPositionAttribute = this.program.getAttributeLocation("aVertexPosition");+ this.gl.enableVertexAttribArray(this.vertexPositionAttribute);
+ this.textureCoordAttribute = this.program.getAttributeLocation("aTextureCoord");;+ this.gl.enableVertexAttribArray(this.textureCoordAttribute);
+ },
+ onInitTextures: function () {+ var gl = this.gl;
+ this.texture = new Texture(gl, this.size, gl.RGB);
+ },
+ onInitSceneTextures: function () {+ this.texture.bind(0, this.program, "texture");
+ },
+ drawScene: function() {+ this.gl.drawArrays(this.gl.TRIANGLE_STRIP, 0, 4);
+ },
+ readPixels: function(buffer) {+ var gl = this.gl;
+ gl.readPixels(0, 0, this.size.w, this.size.h, gl.RGB, gl.UNSIGNED_BYTE, buffer);
+ }
+ };
+ return constructor;
+})();
+
+var YUVWebGLCanvas = (function () {+ var vertexShaderScript = Script.createFromSource("x-shader/x-vertex", text([+ "attribute vec3 aVertexPosition;",
+ "attribute vec2 aTextureCoord;",
+ "uniform mat4 uMVMatrix;",
+ "uniform mat4 uPMatrix;",
+ "varying highp vec2 vTextureCoord;",
+ "void main(void) {",+ " gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0);",
+ " vTextureCoord = aTextureCoord;",
+ "}"
+ ]));
+
+ var fragmentShaderScriptOld = Script.createFromSource("x-shader/x-fragment", text([+ "precision highp float;",
+ "varying highp vec2 vTextureCoord;",
+ "uniform sampler2D YTexture;",
+ "uniform sampler2D UTexture;",
+ "uniform sampler2D VTexture;",
+
+ "void main(void) {",+ " vec3 YUV = vec3",
+ " (",+ " texture2D(YTexture, vTextureCoord).x * 1.1643828125, // premultiply Y",
+ " texture2D(UTexture, vTextureCoord).x,",
+ " texture2D(VTexture, vTextureCoord).x",
+ " );",
+ " gl_FragColor = vec4",
+ " (",+ " YUV.x + 1.59602734375 * YUV.z - 0.87078515625,",
+ " YUV.x - 0.39176171875 * YUV.y - 0.81296875 * YUV.z + 0.52959375,",
+ " YUV.x + 2.017234375 * YUV.y - 1.081390625,",
+ " 1",
+ " );",
+ "}"
+ ]));
+
+ var fragmentShaderScriptSimple = Script.createFromSource("x-shader/x-fragment", text([+ "precision highp float;",
+ "varying highp vec2 vTextureCoord;",
+ "uniform sampler2D YTexture;",
+ "uniform sampler2D UTexture;",
+ "uniform sampler2D VTexture;",
+
+ "void main(void) {",+ " gl_FragColor = texture2D(YTexture, vTextureCoord);",
+ "}"
+ ]));
+
+ var fragmentShaderScript = Script.createFromSource("x-shader/x-fragment", text([+ "precision highp float;",
+ "varying highp vec2 vTextureCoord;",
+ "uniform sampler2D YTexture;",
+ "uniform sampler2D UTexture;",
+ "uniform sampler2D VTexture;",
+ "const mat4 YUV2RGB = mat4",
+ "(",+ " 1.1643828125, 0, 1.59602734375, -.87078515625,",
+ " 1.1643828125, -.39176171875, -.81296875, .52959375,",
+ " 1.1643828125, 2.017234375, 0, -1.081390625,",
+ " 0, 0, 0, 1",
+ ");",
+
+ "void main(void) {",+ " gl_FragColor = vec4( texture2D(YTexture, vTextureCoord).x, texture2D(UTexture, vTextureCoord).x, texture2D(VTexture, vTextureCoord).x, 1) * YUV2RGB;",
+ "}"
+ ]));
+
+
+ function constructor(canvas, size) {+ WebGLCanvas.call(this, canvas, size);
+ }
+
+ constructor.prototype = inherit(WebGLCanvas, {+ onInitShaders: function() {+ this.program = new Program(this.gl);
+ this.program.attach(new Shader(this.gl, vertexShaderScript));
+ this.program.attach(new Shader(this.gl, fragmentShaderScript));
+ this.program.link();
+ this.program.use();
+ this.vertexPositionAttribute = this.program.getAttributeLocation("aVertexPosition");+ this.gl.enableVertexAttribArray(this.vertexPositionAttribute);
+ this.textureCoordAttribute = this.program.getAttributeLocation("aTextureCoord");;+ this.gl.enableVertexAttribArray(this.textureCoordAttribute);
+ },
+ onInitTextures: function () {+ this.YTexture = new Texture(this.gl, this.size);
+ this.UTexture = new Texture(this.gl, this.size.getHalfSize());
+ this.VTexture = new Texture(this.gl, this.size.getHalfSize());
+ },
+ onInitSceneTextures: function () {+ this.YTexture.bind(0, this.program, "YTexture");
+ this.UTexture.bind(1, this.program, "UTexture");
+ this.VTexture.bind(2, this.program, "VTexture");
+ },
+ fillYUVTextures: function(y, u, v) {+ this.YTexture.fill(y);
+ this.UTexture.fill(u);
+ this.VTexture.fill(v);
+ },
+ toString: function() {+ return "YUVCanvas Size: " + this.size;
+ }
+ });
+
+ return constructor;
+})();
+
+
+var FilterWebGLCanvas = (function () {+ var vertexShaderScript = Script.createFromSource("x-shader/x-vertex", text([+ "attribute vec3 aVertexPosition;",
+ "attribute vec2 aTextureCoord;",
+ "uniform mat4 uMVMatrix;",
+ "uniform mat4 uPMatrix;",
+ "varying highp vec2 vTextureCoord;",
+ "void main(void) {",+ " gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0);",
+ " vTextureCoord = aTextureCoord;",
+ "}"
+ ]));
+
+ var fragmentShaderScript = Script.createFromSource("x-shader/x-fragment", text([+ "precision highp float;",
+ "varying highp vec2 vTextureCoord;",
+ "uniform sampler2D FTexture;",
+
+ "void main(void) {",+ " gl_FragColor = texture2D(FTexture, vTextureCoord);",
+ "}"
+ ]));
+
+
+ function constructor(canvas, size, useFrameBuffer) {+ WebGLCanvas.call(this, canvas, size, useFrameBuffer);
+ }
+
+ constructor.prototype = inherit(WebGLCanvas, {+ onInitShaders: function() {+ this.program = new Program(this.gl);
+ this.program.attach(new Shader(this.gl, vertexShaderScript));
+ this.program.attach(new Shader(this.gl, fragmentShaderScript));
+ this.program.link();
+ this.program.use();
+ this.vertexPositionAttribute = this.program.getAttributeLocation("aVertexPosition");+ this.gl.enableVertexAttribArray(this.vertexPositionAttribute);
+ this.textureCoordAttribute = this.program.getAttributeLocation("aTextureCoord");+ this.gl.enableVertexAttribArray(this.textureCoordAttribute);
+ },
+ onInitTextures: function () {+ console.log("creatingTextures: size: " + this.size);+ this.FTexture = new Texture(this.gl, this.size, this.gl.RGB);
+ },
+ onInitSceneTextures: function () {+ this.FTexture.bind(0, this.program, "FTexture");
+ },
+ process: function(buffer, output) {+ this.FTexture.fill(buffer);
+ this.drawScene();
+ this.readPixels(output);
+ },
+ toString: function() {+ return "FilterWebGLCanvas Size: " + this.size;
+ }
+ });
+
+ return constructor;
+})();
+//
+// Copyright (c) 2013 Sam Leitch. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+/*
+ * This class wraps the details of the h264bsd library.
+ */
+function H264Decoder(Module, targetCanvas) {+ H264Decoder.Module = Module;
+ H264Decoder.released = false;
+
+ H264Decoder.pStorage = H264Decoder.h264bsdAlloc();
+
+ H264Decoder.h264bsdInit(H264Decoder.Module, H264Decoder.pStorage, 0);
+ H264Decoder.targetCanvas = targetCanvas;
+};
+
+
+H264Decoder.RDY = 0;
+H264Decoder.PIC_RDY = 1;
+H264Decoder.HDRS_RDY = 2;
+H264Decoder.ERROR = 3;
+H264Decoder.PARAM_SET_ERROR = 4;
+H264Decoder.MEMALLOC_ERROR = 5;
+
+H264Decoder.Module = null;
+H264Decoder.released = false;
+H264Decoder.pStorage = null;
+H264Decoder.targetCanvas = null;
+H264Decoder.yuvCanvas = null;
+
+H264Decoder.prototype.release = function() {+ if(this.released) return;
+
+ this.released = true;
+ H264Decoder.h264bsdShutdown(this.Module, this.pStorage);
+ H264Decoder.h264bsdFree(this.Module, this.pStorage);
+};
+
+H264Decoder.prototype.decode = function(data) {+ if(data === undefined || !(data instanceof ArrayBuffer)) {+ throw new Error("data must be a ArrayBuffer instance")+ }
+
+ data = new Uint8Array(data);
+
+ var pData = 0; //The offset into the heap when decoding
+ var pAlloced = 0; //The original pointer to the data buffer (for freeing)
+ var pBytesRead = 0; //Pointer to bytesRead
+ var length = data.byteLength; //The byte-wise length of the data to decode
+ var bytesRead = 0; //The number of bytes read from a decode operation
+ var retCode = 0; //Return code from a decode operation
+ var lastPicId = 0; //ID of the last picture decoded
+
+ //Get a pointer into the heap were our decoded bytes will live
+ pData = pAlloced = H264Decoder.malloc(H264Decoder.Module, length);
+ H264Decoder.Module.HEAPU8.set(data, pData);
+
+ //get a pointer to where bytesRead will be stored: Uint32 = 4 bytes
+ pBytesRead = H264Decoder.malloc(H264Decoder.Module, 4);
+
+ //Keep decoding frames while there is still something to decode
+ while(length > 0) {+
+ retCode = H264Decoder.h264bsdDecode(H264Decoder.Module, H264Decoder.pStorage, pData, length, lastPicId, pBytesRead);
+ bytesRead = H264Decoder.Module.getValue(pBytesRead, 'i32');
+
+ switch(retCode){+ case H264Decoder.PIC_RDY:
+ lastPicId++;
+ var evt = new CustomEvent("pictureReady", {+ detail: H264Decoder.getNextOutputPicture()
+ });
+
+ if (H264Decoder.targetCanvas != null){+ H264Decoder.targetCanvas.dispatchEvent(evt);
+ }
+ break;
+ }
+
+ length = length - bytesRead;
+ pData = pData + bytesRead;
+ }
+
+ if(pAlloced != 0) {+ H264Decoder.free(H264Decoder.Module, pAlloced);
+ }
+
+ if(pBytesRead != 0) {+ H264Decoder.free(H264Decoder.Module, pBytesRead);
+ }
+
+};
+
+H264Decoder.clamp = function(num, max, min) {+ return Math.min(Math.max(num, min), max);
+};
+
+H264Decoder.getNextOutputPicture = function(){+ var length = H264Decoder.getYUVLength();
+
+ var pPicId = H264Decoder.malloc(H264Decoder.Module, 4);
+ var picId = 0;
+
+ var pIsIdrPic = H264Decoder.malloc(H264Decoder.Module, 4);
+ var isIdrPic = 0;
+
+ var pNumErrMbs = H264Decoder.malloc(H264Decoder.Module, 4);
+ var numErrMbs = 0;
+
+ var pBytes = H264Decoder.h264bsdNextOutputPicture(H264Decoder.Module, H264Decoder.pStorage, pPicId, pIsIdrPic, pNumErrMbs);
+ var bytes = null;
+
+ picId = H264Decoder.Module.getValue(pPicId, 'i32');
+ isIdrPic = H264Decoder.Module.getValue(pIsIdrPic, 'i32');
+ numErrMbs = H264Decoder.Module.getValue(pNumErrMbs, 'i32');
+
+ bytes = new Uint8Array();
+ bytes = H264Decoder.Module.HEAPU8.subarray(pBytes, (pBytes + length));
+
+
+ if (pPicId != 0){+ H264Decoder.free(pPicId);
+ }
+
+ if (pIsIdrPic != 0){+ H264Decoder.free(pIsIdrPic);
+ }
+
+ if (pNumErrMbs != 0){+ H264Decoder.free(pNumErrMbs);
+ }
+
+ H264Decoder.free(pPicId);
+ H264Decoder.free(pIsIdrPic);
+ H264Decoder.free(pNumErrMbs);
+
+ var ret = {};+ var croppingInfo = H264Decoder.getCroppingInfo();
+ if (H264Decoder.detectWebGl()){+ ret = {+ encoding: 'YUV',
+ picture: bytes,
+ height: croppingInfo.height,
+ width: croppingInfo.width};
+ }else{+ ret = {+ encoding: 'RGB',
+ picture: H264Decoder.convertYUV2RGB(bytes, croppingInfo),
+ height: croppingInfo.height,
+ width: croppingInfo.width};
+ }
+
+ return ret;
+};
+
+//Excessively pink
+H264Decoder.convertYUV2RGB = function(yuvBytes, croppingInfo){+ var width = croppingInfo.width - croppingInfo.left;
+ var height = croppingInfo.height - croppingInfo.top;
+
+ var rgbBytes = new Uint8Array();
+
+ var cb = width * height;
+ var cr = cb + ((width * height) / 2);
+ var numPixels = width * height;
+
+ var dst = 0;
+ var dst_width = 0;
+
+ var k = 0;
+ for (var i = 0; i < numPixels; i += 2)
+ {+ k += 1;
+
+ var y1 = yuvBytes[i] & 0xff;
+ var y2 = yuvBytes[i + 1] & 0xff;
+ var y3 = yuvBytes[width + i] & 0xff;
+ var y4 = yuvBytes[width + i + 1] & 0xff;
+
+ var v = yuvBytes[cr + k] & 0xff;
+ var u = yuvBytes[cb + k] & 0xff;
+
+ v = v - 128;
+ u = u - 128;
+
+ dst = i * 4;
+ dst_width = width*4 + dst;
+
+ // i
+ rgbBytes[dst] = 0xff;
+ rgbBytes[dst + 1] = H264Decoder.clamp((298 * (y1 - 16) + 409 * v + 128) >> 8, 255, 0);
+ rgbBytes[dst + 2] = H264Decoder.clamp((298 * (y1 - 16) - 100 * u - 208 *v + 128) >> 8, 255,0);
+ rgbBytes[dst + 3] = H264Decoder.clamp((298 * y1 + 516*u + 128) >> 8, 255, 0);
+
+ // i + 1
+ rgbBytes[dst + 4] = 0xff;
+ rgbBytes[dst + 5] = H264Decoder.clamp((298 * (y2 - 16) + 409 * v + 128) >> 8, 255, 0);
+ rgbBytes[dst + 6] = H264Decoder.clamp((298 * (y2 - 16) - 100 * u - 208 *v + 128) >> 8, 255,0);
+ rgbBytes[dst + 7] = H264Decoder.clamp((298 * y2 + 516*u + 128) >> 8, 255, 0);
+
+ //width
+ rgbBytes[dst_width] = 0xff;
+ rgbBytes[dst_width + 1] = H264Decoder.clamp((298 * (y3 - 16) + 409 * v + 128) >> 8, 255, 0);
+ rgbBytes[dst_width + 2] = H264Decoder.clamp((298 * (y2 - 16) - 100 * u - 208 *v + 128) >> 8, 255,0);
+ rgbBytes[dst_width + 3] = H264Decoder.clamp((298 * y3 + 516*u + 128) >> 8, 255, 0);
+
+ //width + 1
+ rgbBytes[dst_width + 4] = 0xff;
+ rgbBytes[dst_width + 5] = H264Decoder.clamp((298 * (y4 - 16) + 409 * v + 128) >> 8, 255, 0);
+ rgbBytes[dst_width + 6] = H264Decoder.clamp((298 * (y4 - 16) - 100 * u - 208 *v + 128) >> 8, 255,0);
+ rgbBytes[dst_width + 7] = H264Decoder.clamp((298 * y4 + 516*u + 128) >> 8, 255, 0);
+
+ if (i != 0 && (i+2)%width ==0) {+ i += width;
+ }
+ }
+
+ return rgbBytes;
+};
+
+H264Decoder.getCroppingInfo = function(){+ var pCroppingFlag = H264Decoder.malloc(H264Decoder.Module, 4);
+ var pLeftOffset = H264Decoder.malloc(H264Decoder.Module, 4);
+ var pTopOffset = H264Decoder.malloc(H264Decoder.Module, 4);
+ var pWidth = H264Decoder.malloc(H264Decoder.Module, 4);
+ var pHeight = H264Decoder.malloc(H264Decoder.Module, 4);
+
+ var result = {+ 'width': (H264Decoder.h264bsdPicWidth(H264Decoder.Module, H264Decoder.pStorage)*16),
+ 'height': (H264Decoder.h264bsdPicHeight(H264Decoder.Module, H264Decoder.pStorage)*16),
+ 'top': 0,
+ 'left': 0
+ };
+
+ H264Decoder.free(pCroppingFlag);
+ H264Decoder.free(pLeftOffset);
+ H264Decoder.free(pTopOffset);
+ H264Decoder.free(pWidth);
+ H264Decoder.free(pHeight);
+
+ return result;
+};
+
+//http://www.browserleaks.com/webgl#howto-detect-webgl
+H264Decoder.detectWebGl = function()
+{+ if (!!window.WebGLRenderingContext) {+ var canvas = document.createElement("canvas"),+ names = ["webgl", "experimental-webgl", "moz-webgl", "webkit-3d"],
+ context = false;
+ for(var i=0;i<4;i++) {+ try {+ context = canvas.getContext(names[i]);
+ if (context && typeof context.getParameter == "function") {+ // WebGL is enabled
+ return true;
+ }
+ } catch(e) {}+ }
+ // WebGL is supported, but disabled
+ return false;
+ }
+ // WebGL not supported
+ return false;
+};
+
+H264Decoder.getYUVLength = function(){+ var width = H264Decoder.h264bsdPicWidth(H264Decoder.Module, H264Decoder.pStorage);
+ var height = H264Decoder.h264bsdPicHeight(H264Decoder.Module, H264Decoder.pStorage);
+ return (width * 16 * height * 16) + (2 * width * 16 * height * 8);
+};
+
+// u32 h264bsdDecode(storage_t *pStorage, u8 *byteStrm, u32 len, u32 picId, u32 *readBytes);
+H264Decoder.h264bsdDecode = function(Module, pStorage, pBytes, len, picId, pBytesRead) {+ return H264Decoder.Module.ccall('h264bsdDecode', Number, + [Number, Number, Number, Number, Number],
+ [pStorage, pBytes, len, picId, pBytesRead]);
+};
+
+// storage_t* h264bsdAlloc();
+H264Decoder.h264bsdAlloc = function(Module) {+ return H264Decoder.Module.ccall('h264bsdAlloc', Number);+};
+
+// void h264bsdFree(storage_t *pStorage);
+H264Decoder.h264bsdFree = function(Module, pStorage) {+ H264Decoder.Module.ccall('h264bsdFree', null, [Number], [pStorage]);+};
+
+// u32 h264bsdInit(storage_t *pStorage, u32 noOutputReordering);
+H264Decoder.h264bsdInit = function(Module, pStorage, noOutputReordering) {+ return H264Decoder.Module.ccall('h264bsdInit', Number, [Number, Number], [pStorage, noOutputReordering]);+};
+
+//void h264bsdShutdown(storage_t *pStorage);
+H264Decoder.h264bsdShutdown = function(Module, pStorage) {+ H264Decoder.Module.ccall('h264bsdShutdown', null, [Number], [pStorage]);+};
+
+// u8* h264bsdNextOutputPicture(storage_t *pStorage, u32 *picId, u32 *isIdrPic, u32 *numErrMbs);
+H264Decoder.h264bsdNextOutputPicture = function(Module, pStorage, pPicId, pIsIdrPic, pNumErrMbs) {+ return H264Decoder.Module.ccall('h264bsdNextOutputPicture', + Number,
+ [Number, Number, Number, Number],
+ [pStorage, pPicId, pIsIdrPic, pNumErrMbs]);
+};
+
+// u32 h264bsdPicWidth(storage_t *pStorage);
+H264Decoder.h264bsdPicWidth = function(Module, pStorage) {+ return H264Decoder.Module.ccall('h264bsdPicWidth', Number, [Number], [pStorage]);+};
+
+// u32 h264bsdPicHeight(storage_t *pStorage);
+H264Decoder.h264bsdPicHeight = function(Module, pStorage) {+ return H264Decoder.Module.ccall('h264bsdPicHeight', Number, [Number], [pStorage]);+};
+
+// void h264bsdCroppingParams(storage_t *pStorage, u32 *croppingFlag, u32 *left, u32 *width, u32 *top, u32 *height);
+H264Decoder.h264bsdCroppingParams = function(Module, pStorage, pCroppingFlag, pLeft, pWidth, pTop, pHeight) {+ return H264Decoder.Module.ccall('h264bsdCroppingParams', + Number,
+ [Number, Number, Number, Number, Number, Number, Number],
+ [pStorage, pCroppingFlag, pLeft, pWidth, pTop, pHeight]);
+};
+
+// u32 h264bsdCheckValidParamSets(storage_t *pStorage);
+H264Decoder.h264bsdCheckValidParamSets = function(Module, pStorage){+ return H264Decoder.Module.ccall('h264bsdCheckValidParamSets', Number, [Number], [pStorage]);+};
+
+// void* malloc(size_t size);
+H264Decoder.malloc = function(Module, size){+ return H264Decoder.Module.ccall('malloc', Number, [Number], [size]);+};
+
+// void free(void* ptr);
+H264Decoder.free = function(Module, ptr){+ return H264Decoder.Module.ccall('free', null, [Number], [ptr]);+};
+
+// void* memcpy(void* dest, void* src, size_t size);
+H264Decoder.memcpy = function(Module, length){+ return H264Decoder.Module.ccall('malloc', Number, [Number, Number, Number], [dest, src, size]);+};
--- a/js/h264bsd.js
+++ b/js/h264bsd.js
@@ -82,16 +82,17 @@
retCode = H264Decoder.h264bsdDecode(H264Decoder.Module, H264Decoder.pStorage, pData, length, lastPicId, pBytesRead);
bytesRead = H264Decoder.Module.getValue(pBytesRead, 'i32');
- window.console.log('Ret: ' , retCode, ' bytesRead: ', bytesRead);-
+
switch(retCode){case H264Decoder.PIC_RDY:
lastPicId++;
- window.console.log('h264bsdDecode, PIC_RDY: ', lastPicId);- H264Decoder.getNextOutputPicture();
- break;
- case H264Decoder.HDRS_RDY:
+ var evt = new CustomEvent("pictureReady", {+ detail: H264Decoder.getNextOutputPicture()
+ });
+ if (H264Decoder.targetCanvas != null){+ H264Decoder.targetCanvas.dispatchEvent(evt);
+ }
break;
}
@@ -131,9 +132,7 @@
picId = H264Decoder.Module.getValue(pPicId, 'i32');
isIdrPic = H264Decoder.Module.getValue(pIsIdrPic, 'i32');
numErrMbs = H264Decoder.Module.getValue(pNumErrMbs, 'i32');
-
- window.console.log('getNextOutputPicture: picId: ' + picId + ', isIdrPic: ' + isIdrPic + ', numErrMbs: ' + numErrMbs + ', length: ' + length);-
+
bytes = new Uint8Array();
bytes = H264Decoder.Module.HEAPU8.subarray(pBytes, (pBytes + length));
@@ -150,56 +149,35 @@
H264Decoder.free(pNumErrMbs);
}
- var croppingInfo = H264Decoder.getCroppingInfo();
- H264Decoder.drawWebGl(bytes, croppingInfo);
- //var result = H264Decoder.convertYUV2RGB(bytes, croppingInfo);
-
H264Decoder.free(pPicId);
H264Decoder.free(pIsIdrPic);
H264Decoder.free(pNumErrMbs);
+ var ret = {};+ var croppingInfo = H264Decoder.getCroppingInfo();
+ if (H264Decoder.detectWebGl()){+ ret = {+ encoding: 'YUV',
+ picture: bytes,
+ height: croppingInfo.height,
+ width: croppingInfo.width};
+ }else{+ ret = {+ encoding: 'RGB',
+ picture: H264Decoder.convertYUV2RGB(bytes, croppingInfo),
+ height: croppingInfo.height,
+ width: croppingInfo.width};
+ }
+
+ return ret;
};
-H264Decoder.drawWebGl = function(yuvBytes, croppingInfo){- if (yuvBytes == null)
- return;
-
- var width = croppingInfo.width - croppingInfo.left;
- var height = croppingInfo.height - croppingInfo.top;
- H264Decoder.yuvCanvas = new YUVWebGLCanvas(H264Decoder.targetCanvas, new Size(width, height));
-
- var startTime = (new Date);
- var lumaSize = width * height;
- var chromaSize = lumaSize >> 2;
-
- H264Decoder.yuvCanvas.YTexture.fill(yuvBytes.subarray(0, lumaSize), true);
- H264Decoder.yuvCanvas.UTexture.fill(yuvBytes.subarray(lumaSize, lumaSize + chromaSize), true);
- H264Decoder.yuvCanvas.VTexture.fill(yuvBytes.subarray(lumaSize + chromaSize, lumaSize + 2 * chromaSize), true);
- H264Decoder.yuvCanvas.drawScene();
-
- console.log("WebGL YUV decode: " + ((new Date) - startTime));-
- // var thisFrame = (self.thisLoop = new Date) - self.lastLoop;
- // self.frameTime += (thisFrame - self.frameTime) / self.filterStrength;
- // self.lastLoop = self.thisLoop;
- // self.stats['fps'] = (1000/self.frameTime).toFixed(1);
- // if (self.onImageUpdated)
- // self.onImageUpdated(self.stats);
- // self.frameCount = 0;
-
-};
-
//Excessively pink
H264Decoder.convertYUV2RGB = function(yuvBytes, croppingInfo){var width = croppingInfo.width - croppingInfo.left;
var height = croppingInfo.height - croppingInfo.top;
- var buffer = document.createElement('canvas');- buffer.height = height;
- buffer.width = width;
- var context = buffer.getContext('2d');- var output = context.createImageData(width,height);
- var rgbBytes = output.data;
+ var rgbBytes = new Uint8Array();
var cb = width * height;
var cr = cb + ((width * height) / 2);
@@ -256,13 +234,7 @@
}
}
- var c = document.getElementById('canvas');- c.height = height;
- c.width = width;
- c.style.height = height;
- c.style.width = width;
- var outputContext = c.getContext('2d'); - outputContext.putImageData(output,0,0);
+ return rgbBytes;
};
H264Decoder.getCroppingInfo = function(){@@ -286,6 +258,29 @@
H264Decoder.free(pHeight);
return result;
+};
+
+//http://www.browserleaks.com/webgl#howto-detect-webgl
+H264Decoder.detectWebGl = function()
+{+ if (!!window.WebGLRenderingContext) {+ var canvas = document.createElement("canvas"),+ names = ["webgl", "experimental-webgl", "moz-webgl", "webkit-3d"],
+ context = false;
+ for(var i=0;i<4;i++) {+ try {+ context = canvas.getContext(names[i]);
+ if (context && typeof context.getParameter == "function") {+ // WebGL is enabled
+ return true;
+ }
+ } catch(e) {}+ }
+ // WebGL is supported, but disabled
+ return false;
+ }
+ // WebGL not supported
+ return false;
};
H264Decoder.getYUVLength = function(){--- /dev/null
+++ b/js/package.json
@@ -1,0 +1,16 @@
+{+ "name": "h264bsd_dist_builder",
+ "description": "Minifies and concatenates all of the files needed for H264Bsd.js",
+ "version": "0.0.1",
+ "private": true,
+ "author": {+ "name": "Chris Jarabek",
+ "email": "chris.jarabek@gmail.com"
+ },
+ "dependencies": {+ "grunt" : "*",
+ "grunt-contrib-uglify": "*",
+ "grunt-contrib-clean": "*"
+ },
+ "title": "H264BSD"
+}
--- a/test/h264bsd.html
+++ b/test/h264bsd.html
@@ -8,18 +8,40 @@
<input type="file" id="file" name="file" /><br/>
<canvas id="canvas" width="640" height="480" style="border:solid;"></canvas>
<h264decoder id="h264decoder"><h264decoder>
- <script src="../js/h264bsd_asm.js"></script>
+ <!--<script src="../js/h264bsd_asm.js"></script>
<script src="../js/sylvester.js"></script>
<script src="../js/glUtils.js"></script>
<script src="../js/util.js"></script>
<script src="../js/canvas.js"></script>
- <script src="../js/h264bsd.js"></script>
+ <script src="../js/h264bsd.js"></script>-->
+ <script src="../js/dist/h264bsd.min.js"></script>
<script type="text/javascript">
- var canvas = document.getElementById('canvas');+ var canvas = document.getElementById('canvas'); var d = new H264Decoder(Module, canvas);
+ canvas.addEventListener("pictureReady", function(e){- var f = document.getElementById('h264decoder');- console.log(f);
+ if (e.detail.picture == null){+ return;
+ }
+ if (e.detail.encoding != 'YUV'){+ return;
+ }
+
+ var bytes = e.detail.picture;
+ var width = e.detail.width;
+ var height = e.detail.height;
+
+ var wgc = new YUVWebGLCanvas(canvas, new Size(width, height));
+
+ var lumaSize = width * height;
+ var chromaSize = lumaSize >> 2;
+
+ wgc.YTexture.fill(bytes.subarray(0, lumaSize), true);
+ wgc.UTexture.fill(bytes.subarray(lumaSize, lumaSize + chromaSize), true);
+ wgc.VTexture.fill(bytes.subarray(lumaSize + chromaSize, lumaSize + 2 * chromaSize), true);
+ wgc.drawScene();
+
+ });
function handleFileSelect(evt) {var f = evt.target.files[0]; // FileList object