// The Module object: Our interface to the outside world. We import // and export values on it. There are various ways Module can be used: // 1. Not defined. We create it here // 2. A function parameter, function(Module) { ..generated code.. } // 3. pre-run appended it, var Module = {}; ..generated code.. // 4. External script tag defines var Module. // We need to check if Module already exists (e.g. case 3 above). // Substitution will be replaced with actual code on later stage of the build, // this way Closure Compiler will not mangle it (e.g. case 4. above). // Note that if you want to run closure, and also to use Module // after the generated code, you will need to define var Module = {}; // before the code. Then that object will be used in the code, and you // can continue to use Module afterwards as well. var Module = typeof Module !== 'undefined' ? Module : {}; // --pre-jses are emitted after the Module integration code, so that they can // refer to Module (if they choose; they can also define Module) // {{PRE_JSES}} // Sometimes an existing Module object exists with properties // meant to overwrite the default module functionality. Here // we collect those properties and reapply _after_ we configure // the current environment's defaults to avoid having to be so // defensive during initialization. var moduleOverrides = {}; var key; for (key in Module) { if (Module.hasOwnProperty(key)) { moduleOverrides[key] = Module[key]; } } var arguments_ = []; var thisProgram = './this.program'; var quit_ = function(status, toThrow) { throw toThrow; }; // Determine the runtime environment we are in. You can customize this by // setting the ENVIRONMENT setting at compile time (see settings.js). var ENVIRONMENT_IS_WEB = false; var ENVIRONMENT_IS_WORKER = false; var ENVIRONMENT_IS_NODE = false; var ENVIRONMENT_IS_SHELL = false; ENVIRONMENT_IS_WEB = typeof window === 'object'; ENVIRONMENT_IS_WORKER = typeof importScripts === 'function'; // N.b. Electron.js environment is simultaneously a NODE-environment, but // also a web environment. ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof process.versions === 'object' && typeof process.versions.node === 'string'; ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; // `/` should be present at the end if `scriptDirectory` is not empty var scriptDirectory = ''; function locateFile(path) { if (Module['locateFile']) { return Module['locateFile'](path, scriptDirectory); } return scriptDirectory + path; } // Hooks that are implemented differently in different runtime environments. var read_, readAsync, readBinary, setWindowTitle; var nodeFS; var nodePath; if (ENVIRONMENT_IS_NODE) { if (ENVIRONMENT_IS_WORKER) { scriptDirectory = require('path').dirname(scriptDirectory) + '/'; } else { scriptDirectory = __dirname + '/'; } read_ = function shell_read(filename, binary) { if (!nodeFS) nodeFS = require('fs'); if (!nodePath) nodePath = require('path'); filename = nodePath['normalize'](filename); return nodeFS['readFileSync'](filename, binary ? null : 'utf8'); }; readBinary = function readBinary(filename) { var ret = read_(filename, true); if (!ret.buffer) { ret = new Uint8Array(ret); } assert(ret.buffer); return ret; }; if (process['argv'].length > 1) { thisProgram = process['argv'][1].replace(/\\/g, '/'); } arguments_ = process['argv'].slice(2); if (typeof module !== 'undefined') { module['exports'] = Module; } process['on']('uncaughtException', function(ex) { // suppress ExitStatus exceptions from showing an error if (!(ex instanceof ExitStatus)) { throw ex; } }); process['on']('unhandledRejection', abort); quit_ = function(status) { process['exit'](status); }; Module['inspect'] = function () { return '[Emscripten Module object]'; }; } else if (ENVIRONMENT_IS_SHELL) { if (typeof read != 'undefined') { read_ = function shell_read(f) { return read(f); }; } readBinary = function readBinary(f) { var data; if (typeof readbuffer === 'function') { return new Uint8Array(readbuffer(f)); } data = read(f, 'binary'); assert(typeof data === 'object'); return data; }; if (typeof scriptArgs != 'undefined') { arguments_ = scriptArgs; } else if (typeof arguments != 'undefined') { arguments_ = arguments; } if (typeof quit === 'function') { quit_ = function(status) { quit(status); }; } if (typeof print !== 'undefined') { // Prefer to use print/printErr where they exist, as they usually work better. if (typeof console === 'undefined') console = /** @type{!Console} */({}); console.log = /** @type{!function(this:Console, ...*): undefined} */ (print); console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr !== 'undefined' ? printErr : print); } } else // Note that this includes Node.js workers when relevant (pthreads is enabled). // Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and // ENVIRONMENT_IS_NODE. if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) { if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled scriptDirectory = self.location.href; } else if (document.currentScript) { // web scriptDirectory = document.currentScript.src; } // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them. // otherwise, slice off the final part of the url to find the script directory. // if scriptDirectory does not contain a slash, lastIndexOf will return -1, // and scriptDirectory will correctly be replaced with an empty string. if (scriptDirectory.indexOf('blob:') !== 0) { scriptDirectory = scriptDirectory.substr(0, scriptDirectory.lastIndexOf('/')+1); } else { scriptDirectory = ''; } // Differentiate the Web Worker from the Node Worker case, as reading must // be done differently. { read_ = function shell_read(url) { var xhr = new XMLHttpRequest(); xhr.open('GET', url, false); xhr.send(null); return xhr.responseText; }; if (ENVIRONMENT_IS_WORKER) { readBinary = function readBinary(url) { var xhr = new XMLHttpRequest(); xhr.open('GET', url, false); xhr.responseType = 'arraybuffer'; xhr.send(null); return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response)); }; } readAsync = function readAsync(url, onload, onerror) { var xhr = new XMLHttpRequest(); xhr.open('GET', url, true); xhr.responseType = 'arraybuffer'; xhr.onload = function xhr_onload() { if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0 onload(xhr.response); return; } onerror(); }; xhr.onerror = onerror; xhr.send(null); }; } //setWindowTitle = function(title) { document.title = title }; } else { } // Set up the out() and err() hooks, which are how we can print to stdout or // stderr, respectively. var out = Module['print'] || console.log.bind(console); var err = Module['printErr'] || console.warn.bind(console); // Merge back in the overrides for (key in moduleOverrides) { if (moduleOverrides.hasOwnProperty(key)) { Module[key] = moduleOverrides[key]; } } // Free the object hierarchy contained in the overrides, this lets the GC // reclaim data used e.g. in memoryInitializerRequest, which is a large typed array. moduleOverrides = null; // Emit code to handle expected values on the Module object. This applies Module.x // to the proper local x. This has two benefits: first, we only emit it if it is // expected to arrive, and second, by using a local everywhere else that can be // minified. if (Module['arguments']) arguments_ = Module['arguments']; if (Module['thisProgram']) thisProgram = Module['thisProgram']; if (Module['quit']) quit_ = Module['quit']; // perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message // {{PREAMBLE_ADDITIONS}} var STACK_ALIGN = 16; function dynamicAlloc(size) { var ret = HEAP32[DYNAMICTOP_PTR>>2]; var end = (ret + size + 15) & -16; HEAP32[DYNAMICTOP_PTR>>2] = end; return ret; } function alignMemory(size, factor) { if (!factor) factor = STACK_ALIGN; // stack alignment (16-byte) by default return Math.ceil(size / factor) * factor; } function getNativeTypeSize(type) { switch (type) { case 'i1': case 'i8': return 1; case 'i16': return 2; case 'i32': return 4; case 'i64': return 8; case 'float': return 4; case 'double': return 8; default: { if (type[type.length-1] === '*') { return 4; // A pointer } else if (type[0] === 'i') { var bits = Number(type.substr(1)); assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type); return bits / 8; } else { return 0; } } } } function warnOnce(text) { if (!warnOnce.shown) warnOnce.shown = {}; if (!warnOnce.shown[text]) { warnOnce.shown[text] = 1; err(text); } } // Wraps a JS function as a wasm function with a given signature. function convertJsFunctionToWasm(func, sig) { // If the type reflection proposal is available, use the new // "WebAssembly.Function" constructor. // Otherwise, construct a minimal wasm module importing the JS function and // re-exporting it. if (typeof WebAssembly.Function === "function") { var typeNames = { 'i': 'i32', 'j': 'i64', 'f': 'f32', 'd': 'f64' }; var type = { parameters: [], results: sig[0] == 'v' ? [] : [typeNames[sig[0]]] }; for (var i = 1; i < sig.length; ++i) { type.parameters.push(typeNames[sig[i]]); } return new WebAssembly.Function(type, func); } // The module is static, with the exception of the type section, which is // generated based on the signature passed in. var typeSection = [ 0x01, // id: section, 0x00, // length: 0 (placeholder) 0x01, // count: 1 0x60, // form: func ]; var sigRet = sig.slice(0, 1); var sigParam = sig.slice(1); var typeCodes = { 'i': 0x7f, // i32 'j': 0x7e, // i64 'f': 0x7d, // f32 'd': 0x7c, // f64 }; // Parameters, length + signatures typeSection.push(sigParam.length); for (var i = 0; i < sigParam.length; ++i) { typeSection.push(typeCodes[sigParam[i]]); } // Return values, length + signatures // With no multi-return in MVP, either 0 (void) or 1 (anything else) if (sigRet == 'v') { typeSection.push(0x00); } else { typeSection = typeSection.concat([0x01, typeCodes[sigRet]]); } // Write the overall length of the type section back into the section header // (excepting the 2 bytes for the section id and length) typeSection[1] = typeSection.length - 2; // Rest of the module is static var bytes = new Uint8Array([ 0x00, 0x61, 0x73, 0x6d, // magic ("\0asm") 0x01, 0x00, 0x00, 0x00, // version: 1 ].concat(typeSection, [ 0x02, 0x07, // import section // (import "e" "f" (func 0 (type 0))) 0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00, 0x07, 0x05, // export section // (export "f" (func 0 (type 0))) 0x01, 0x01, 0x66, 0x00, 0x00, ])); // We can compile this wasm module synchronously because it is very small. // This accepts an import (at "e.f"), that it reroutes to an export (at "f") var module = new WebAssembly.Module(bytes); var instance = new WebAssembly.Instance(module, { 'e': { 'f': func } }); var wrappedFunc = instance.exports['f']; return wrappedFunc; } var freeTableIndexes = []; // Weak map of functions in the table to their indexes, created on first use. var functionsInTableMap; // Add a wasm function to the table. function addFunctionWasm(func, sig) { var table = wasmTable; // Check if the function is already in the table, to ensure each function // gets a unique index. First, create the map if this is the first use. if (!functionsInTableMap) { functionsInTableMap = new WeakMap(); for (var i = 0; i < table.length; i++) { var item = table.get(i); // Ignore null values. if (item) { functionsInTableMap.set(item, i); } } } if (functionsInTableMap.has(func)) { return functionsInTableMap.get(func); } // It's not in the table, add it now. var ret; // Reuse a free index if there is one, otherwise grow. if (freeTableIndexes.length) { ret = freeTableIndexes.pop(); } else { ret = table.length; // Grow the table try { table.grow(1); } catch (err) { if (!(err instanceof RangeError)) { throw err; } throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.'; } } // Set the new value. try { // Attempting to call this with JS function will cause of table.set() to fail table.set(ret, func); } catch (err) { if (!(err instanceof TypeError)) { throw err; } var wrapped = convertJsFunctionToWasm(func, sig); table.set(ret, wrapped); } functionsInTableMap.set(func, ret); return ret; } function removeFunctionWasm(index) { functionsInTableMap.delete(wasmTable.get(index)); freeTableIndexes.push(index); } // 'sig' parameter is required for the llvm backend but only when func is not // already a WebAssembly function. function addFunction(func, sig) { return addFunctionWasm(func, sig); } function removeFunction(index) { removeFunctionWasm(index); } var funcWrappers = {}; function getFuncWrapper(func, sig) { if (!func) return; // on null pointer, return undefined assert(sig); if (!funcWrappers[sig]) { funcWrappers[sig] = {}; } var sigCache = funcWrappers[sig]; if (!sigCache[func]) { // optimize away arguments usage in common cases if (sig.length === 1) { sigCache[func] = function dynCall_wrapper() { return dynCall(sig, func); }; } else if (sig.length === 2) { sigCache[func] = function dynCall_wrapper(arg) { return dynCall(sig, func, [arg]); }; } else { // general case sigCache[func] = function dynCall_wrapper() { return dynCall(sig, func, Array.prototype.slice.call(arguments)); }; } } return sigCache[func]; } function makeBigInt(low, high, unsigned) { return unsigned ? ((+((low>>>0)))+((+((high>>>0)))*4294967296.0)) : ((+((low>>>0)))+((+((high|0)))*4294967296.0)); } /** @param {Array=} args */ function dynCall(sig, ptr, args) { if (args && args.length) { return Module['dynCall_' + sig].apply(null, [ptr].concat(args)); } else { return Module['dynCall_' + sig].call(null, ptr); } } var tempRet0 = 0; var setTempRet0 = function(value) { tempRet0 = value; }; var getTempRet0 = function() { return tempRet0; }; // The address globals begin at. Very low in memory, for code size and optimization opportunities. // Above 0 is static memory, starting with globals. // Then the stack. // Then 'dynamic' memory for sbrk. var GLOBAL_BASE = 1024; // === Preamble library stuff === // Documentation for the public APIs defined in this file must be updated in: // site/source/docs/api_reference/preamble.js.rst // A prebuilt local version of the documentation is available at: // site/build/text/docs/api_reference/preamble.js.txt // You can also build docs locally as HTML or other formats in site/ // An online HTML version (which may be of a different version of Emscripten) // is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html var wasmBinary;if (Module['wasmBinary']) wasmBinary = Module['wasmBinary']; var noExitRuntime;if (Module['noExitRuntime']) noExitRuntime = Module['noExitRuntime']; if (typeof WebAssembly !== 'object') { err('no native wasm support detected'); } // In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking. // In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties) /** @param {number} ptr @param {number} value @param {string} type @param {number|boolean=} noSafe */ function setValue(ptr, value, type, noSafe) { type = type || 'i8'; if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit switch(type) { case 'i1': HEAP8[((ptr)>>0)]=value; break; case 'i8': HEAP8[((ptr)>>0)]=value; break; case 'i16': HEAP16[((ptr)>>1)]=value; break; case 'i32': HEAP32[((ptr)>>2)]=value; break; case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break; case 'float': HEAPF32[((ptr)>>2)]=value; break; case 'double': HEAPF64[((ptr)>>3)]=value; break; default: abort('invalid type for setValue: ' + type); } } /** @param {number} ptr @param {string} type @param {number|boolean=} noSafe */ function getValue(ptr, type, noSafe) { type = type || 'i8'; if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit switch(type) { case 'i1': return HEAP8[((ptr)>>0)]; case 'i8': return HEAP8[((ptr)>>0)]; case 'i16': return HEAP16[((ptr)>>1)]; case 'i32': return HEAP32[((ptr)>>2)]; case 'i64': return HEAP32[((ptr)>>2)]; case 'float': return HEAPF32[((ptr)>>2)]; case 'double': return HEAPF64[((ptr)>>3)]; default: abort('invalid type for getValue: ' + type); } return null; } // Wasm globals var wasmMemory; // In fastcomp asm.js, we don't need a wasm Table at all. // In the wasm backend, we polyfill the WebAssembly object, // so this creates a (non-native-wasm) table for us. var wasmTable = new WebAssembly.Table({ 'initial': 4, 'maximum': 4 + 0, 'element': 'anyfunc' }); //======================================== // Runtime essentials //======================================== // whether we are quitting the application. no code should run after this. // set in exit() and abort() var ABORT = false; // set by exit() and abort(). Passed to 'onExit' handler. // NOTE: This is also used as the process return code code in shell environments // but only when noExitRuntime is false. var EXITSTATUS = 0; /** @type {function(*, string=)} */ function assert(condition, text) { if (!condition) { abort('Assertion failed: ' + text); } } // Returns the C function with a specified identifier (for C++, you need to do manual name mangling) function getCFunc(ident) { var func = Module['_' + ident]; // closure exported function assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported'); return func; } // C calling interface. /** @param {string|null=} returnType @param {Array=} argTypes @param {Arguments|Array=} args @param {Object=} opts */ function ccall(ident, returnType, argTypes, args, opts) { // For fast lookup of conversion functions var toC = { 'string': function(str) { var ret = 0; if (str !== null && str !== undefined && str !== 0) { // null string // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0' var len = (str.length << 2) + 1; ret = stackAlloc(len); stringToUTF8(str, ret, len); } return ret; }, 'array': function(arr) { var ret = stackAlloc(arr.length); writeArrayToMemory(arr, ret); return ret; } }; function convertReturnValue(ret) { if (returnType === 'string') return UTF8ToString(ret); if (returnType === 'boolean') return Boolean(ret); return ret; } var func = getCFunc(ident); var cArgs = []; var stack = 0; if (args) { for (var i = 0; i < args.length; i++) { var converter = toC[argTypes[i]]; if (converter) { if (stack === 0) stack = stackSave(); cArgs[i] = converter(args[i]); } else { cArgs[i] = args[i]; } } } var ret = func.apply(null, cArgs); ret = convertReturnValue(ret); if (stack !== 0) stackRestore(stack); return ret; } /** @param {string=} returnType @param {Array=} argTypes @param {Object=} opts */ function cwrap(ident, returnType, argTypes, opts) { argTypes = argTypes || []; // When the function takes numbers and returns a number, we can just return // the original function var numericArgs = argTypes.every(function(type){ return type === 'number'}); var numericRet = returnType !== 'string'; if (numericRet && numericArgs && !opts) { return getCFunc(ident); } return function() { return ccall(ident, returnType, argTypes, arguments, opts); } } var ALLOC_NORMAL = 0; // Tries to use _malloc() var ALLOC_STACK = 1; // Lives for the duration of the current function call var ALLOC_DYNAMIC = 2; // Cannot be freed except through sbrk var ALLOC_NONE = 3; // Do not allocate // allocate(): This is for internal use. You can use it yourself as well, but the interface // is a little tricky (see docs right below). The reason is that it is optimized // for multiple syntaxes to save space in generated code. So you should // normally not use allocate(), and instead allocate memory using _malloc(), // initialize it with setValue(), and so forth. // @slab: An array of data, or a number. If a number, then the size of the block to allocate, // in *bytes* (note that this is sometimes confusing: the next parameter does not // affect this!) // @types: Either an array of types, one for each byte (or 0 if no type at that position), // or a single type which is used for the entire block. This only matters if there // is initial data - if @slab is a number, then this does not matter at all and is // ignored. // @allocator: How to allocate memory, see ALLOC_* /** @type {function((TypedArray|Array|number), string, number, number=)} */ function allocate(slab, types, allocator, ptr) { var zeroinit, size; if (typeof slab === 'number') { zeroinit = true; size = slab; } else { zeroinit = false; size = slab.length; } var singleType = typeof types === 'string' ? types : null; var ret; if (allocator == ALLOC_NONE) { ret = ptr; } else { ret = [_malloc, stackAlloc, dynamicAlloc][allocator](Math.max(size, singleType ? 1 : types.length)); } if (zeroinit) { var stop; ptr = ret; assert((ret & 3) == 0); stop = ret + (size & ~3); for (; ptr < stop; ptr += 4) { HEAP32[((ptr)>>2)]=0; } stop = ret + size; while (ptr < stop) { HEAP8[((ptr++)>>0)]=0; } return ret; } if (singleType === 'i8') { if (slab.subarray || slab.slice) { HEAPU8.set(/** @type {!Uint8Array} */ (slab), ret); } else { HEAPU8.set(new Uint8Array(slab), ret); } return ret; } var i = 0, type, typeSize, previousType; while (i < size) { var curr = slab[i]; type = singleType || types[i]; if (type === 0) { i++; continue; } if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later setValue(ret+i, curr, type); // no need to look up size unless type changes, so cache it if (previousType !== type) { typeSize = getNativeTypeSize(type); previousType = type; } i += typeSize; } return ret; } // Allocate memory during any stage of startup - static memory early on, dynamic memory later, malloc when ready function getMemory(size) { if (!runtimeInitialized) return dynamicAlloc(size); return _malloc(size); } // runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime. // Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns // a copy of that string as a Javascript String object. var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined; /** * @param {number} idx * @param {number=} maxBytesToRead * @return {string} */ function UTF8ArrayToString(heap, idx, maxBytesToRead) { var endIdx = idx + maxBytesToRead; var endPtr = idx; // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. // (As a tiny code save trick, compare endPtr against endIdx using a negation, so that undefined means Infinity) while (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr; if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) { return UTF8Decoder.decode(heap.subarray(idx, endPtr)); } else { var str = ''; // If building with TextDecoder, we have already computed the string length above, so test loop end condition against that while (idx < endPtr) { // For UTF8 byte structure, see: // http://en.wikipedia.org/wiki/UTF-8#Description // https://www.ietf.org/rfc/rfc2279.txt // https://tools.ietf.org/html/rfc3629 var u0 = heap[idx++]; if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; } var u1 = heap[idx++] & 63; if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; } var u2 = heap[idx++] & 63; if ((u0 & 0xF0) == 0xE0) { u0 = ((u0 & 15) << 12) | (u1 << 6) | u2; } else { u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heap[idx++] & 63); } if (u0 < 0x10000) { str += String.fromCharCode(u0); } else { var ch = u0 - 0x10000; str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); } } } return str; } // Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns a // copy of that string as a Javascript String object. // maxBytesToRead: an optional length that specifies the maximum number of bytes to read. You can omit // this parameter to scan the string until the first \0 byte. If maxBytesToRead is // passed, and the string at [ptr, ptr+maxBytesToReadr[ contains a null byte in the // middle, then the string will cut short at that byte index (i.e. maxBytesToRead will // not produce a string of exact length [ptr, ptr+maxBytesToRead[) // N.B. mixing frequent uses of UTF8ToString() with and without maxBytesToRead may // throw JS JIT optimizations off, so it is worth to consider consistently using one // style or the other. /** * @param {number} ptr * @param {number=} maxBytesToRead * @return {string} */ function UTF8ToString(ptr, maxBytesToRead) { return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : ''; } // Copies the given Javascript String object 'str' to the given byte array at address 'outIdx', // encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP. // Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. // Parameters: // str: the Javascript string to copy. // heap: the array to copy to. Each index in this array is assumed to be one 8-byte element. // outIdx: The starting offset in the array to begin the copying. // maxBytesToWrite: The maximum number of bytes this function can write to the array. // This count should include the null terminator, // i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else. // maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator. // Returns the number of bytes written, EXCLUDING the null terminator. function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) { if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes. return 0; var startIdx = outIdx; var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator. for (var i = 0; i < str.length; ++i) { // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. // See http://unicode.org/faq/utf_bom.html#utf16-3 // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629 var u = str.charCodeAt(i); // possibly a lead surrogate if (u >= 0xD800 && u <= 0xDFFF) { var u1 = str.charCodeAt(++i); u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF); } if (u <= 0x7F) { if (outIdx >= endIdx) break; heap[outIdx++] = u; } else if (u <= 0x7FF) { if (outIdx + 1 >= endIdx) break; heap[outIdx++] = 0xC0 | (u >> 6); heap[outIdx++] = 0x80 | (u & 63); } else if (u <= 0xFFFF) { if (outIdx + 2 >= endIdx) break; heap[outIdx++] = 0xE0 | (u >> 12); heap[outIdx++] = 0x80 | ((u >> 6) & 63); heap[outIdx++] = 0x80 | (u & 63); } else { if (outIdx + 3 >= endIdx) break; heap[outIdx++] = 0xF0 | (u >> 18); heap[outIdx++] = 0x80 | ((u >> 12) & 63); heap[outIdx++] = 0x80 | ((u >> 6) & 63); heap[outIdx++] = 0x80 | (u & 63); } } // Null-terminate the pointer to the buffer. heap[outIdx] = 0; return outIdx - startIdx; } // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', // null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP. // Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. // Returns the number of bytes written, EXCLUDING the null terminator. function stringToUTF8(str, outPtr, maxBytesToWrite) { return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite); } // Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte. function lengthBytesUTF8(str) { var len = 0; for (var i = 0; i < str.length; ++i) { // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. // See http://unicode.org/faq/utf_bom.html#utf16-3 var u = str.charCodeAt(i); // possibly a lead surrogate if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF); if (u <= 0x7F) ++len; else if (u <= 0x7FF) len += 2; else if (u <= 0xFFFF) len += 3; else len += 4; } return len; } // runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime. // Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns // a copy of that string as a Javascript String object. function AsciiToString(ptr) { var str = ''; while (1) { var ch = HEAPU8[((ptr++)>>0)]; if (!ch) return str; str += String.fromCharCode(ch); } } // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', // null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP. function stringToAscii(str, outPtr) { return writeAsciiToMemory(str, outPtr, false); } // Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns // a copy of that string as a Javascript String object. var UTF16Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-16le') : undefined; function UTF16ToString(ptr, maxBytesToRead) { var endPtr = ptr; // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. var idx = endPtr >> 1; var maxIdx = idx + maxBytesToRead / 2; // If maxBytesToRead is not passed explicitly, it will be undefined, and this // will always evaluate to true. This saves on code size. while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx; endPtr = idx << 1; if (endPtr - ptr > 32 && UTF16Decoder) { return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr)); } else { var i = 0; var str = ''; while (1) { var codeUnit = HEAP16[(((ptr)+(i*2))>>1)]; if (codeUnit == 0 || i == maxBytesToRead / 2) return str; ++i; // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through. str += String.fromCharCode(codeUnit); } } } // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', // null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP. // Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write. // Parameters: // str: the Javascript string to copy. // outPtr: Byte address in Emscripten HEAP where to write the string to. // maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null // terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else. // maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator. // Returns the number of bytes written, EXCLUDING the null terminator. function stringToUTF16(str, outPtr, maxBytesToWrite) { // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. if (maxBytesToWrite === undefined) { maxBytesToWrite = 0x7FFFFFFF; } if (maxBytesToWrite < 2) return 0; maxBytesToWrite -= 2; // Null terminator. var startPtr = outPtr; var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length; for (var i = 0; i < numCharsToWrite; ++i) { // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP. var codeUnit = str.charCodeAt(i); // possibly a lead surrogate HEAP16[((outPtr)>>1)]=codeUnit; outPtr += 2; } // Null-terminate the pointer to the HEAP. HEAP16[((outPtr)>>1)]=0; return outPtr - startPtr; } // Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. function lengthBytesUTF16(str) { return str.length*2; } function UTF32ToString(ptr, maxBytesToRead) { var i = 0; var str = ''; // If maxBytesToRead is not passed explicitly, it will be undefined, and this // will always evaluate to true. This saves on code size. while (!(i >= maxBytesToRead / 4)) { var utf32 = HEAP32[(((ptr)+(i*4))>>2)]; if (utf32 == 0) break; ++i; // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing. // See http://unicode.org/faq/utf_bom.html#utf16-3 if (utf32 >= 0x10000) { var ch = utf32 - 0x10000; str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); } else { str += String.fromCharCode(utf32); } } return str; } // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', // null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP. // Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write. // Parameters: // str: the Javascript string to copy. // outPtr: Byte address in Emscripten HEAP where to write the string to. // maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null // terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else. // maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator. // Returns the number of bytes written, EXCLUDING the null terminator. function stringToUTF32(str, outPtr, maxBytesToWrite) { // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. if (maxBytesToWrite === undefined) { maxBytesToWrite = 0x7FFFFFFF; } if (maxBytesToWrite < 4) return 0; var startPtr = outPtr; var endPtr = startPtr + maxBytesToWrite - 4; for (var i = 0; i < str.length; ++i) { // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap. // See http://unicode.org/faq/utf_bom.html#utf16-3 var codeUnit = str.charCodeAt(i); // possibly a lead surrogate if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) { var trailSurrogate = str.charCodeAt(++i); codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF); } HEAP32[((outPtr)>>2)]=codeUnit; outPtr += 4; if (outPtr + 4 > endPtr) break; } // Null-terminate the pointer to the HEAP. HEAP32[((outPtr)>>2)]=0; return outPtr - startPtr; } // Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. function lengthBytesUTF32(str) { var len = 0; for (var i = 0; i < str.length; ++i) { // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap. // See http://unicode.org/faq/utf_bom.html#utf16-3 var codeUnit = str.charCodeAt(i); if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate. len += 4; } return len; } // Allocate heap space for a JS string, and write it there. // It is the responsibility of the caller to free() that memory. function allocateUTF8(str) { var size = lengthBytesUTF8(str) + 1; var ret = _malloc(size); if (ret) stringToUTF8Array(str, HEAP8, ret, size); return ret; } // Allocate stack space for a JS string, and write it there. function allocateUTF8OnStack(str) { var size = lengthBytesUTF8(str) + 1; var ret = stackAlloc(size); stringToUTF8Array(str, HEAP8, ret, size); return ret; } // Deprecated: This function should not be called because it is unsafe and does not provide // a maximum length limit of how many bytes it is allowed to write. Prefer calling the // function stringToUTF8Array() instead, which takes in a maximum length that can be used // to be secure from out of bounds writes. /** @deprecated @param {boolean=} dontAddNull */ function writeStringToMemory(string, buffer, dontAddNull) { warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!'); var /** @type {number} */ lastChar, /** @type {number} */ end; if (dontAddNull) { // stringToUTF8Array always appends null. If we don't want to do that, remember the // character that existed at the location where the null will be placed, and restore // that after the write (below). end = buffer + lengthBytesUTF8(string); lastChar = HEAP8[end]; } stringToUTF8(string, buffer, Infinity); if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character. } function writeArrayToMemory(array, buffer) { HEAP8.set(array, buffer); } /** @param {boolean=} dontAddNull */ function writeAsciiToMemory(str, buffer, dontAddNull) { for (var i = 0; i < str.length; ++i) { HEAP8[((buffer++)>>0)]=str.charCodeAt(i); } // Null-terminate the pointer to the HEAP. if (!dontAddNull) HEAP8[((buffer)>>0)]=0; } // Memory management var PAGE_SIZE = 16384; var WASM_PAGE_SIZE = 65536; var ASMJS_PAGE_SIZE = 16777216; function alignUp(x, multiple) { if (x % multiple > 0) { x += multiple - (x % multiple); } return x; } var HEAP, /** @type {ArrayBuffer} */ buffer, /** @type {Int8Array} */ HEAP8, /** @type {Uint8Array} */ HEAPU8, /** @type {Int16Array} */ HEAP16, /** @type {Uint16Array} */ HEAPU16, /** @type {Int32Array} */ HEAP32, /** @type {Uint32Array} */ HEAPU32, /** @type {Float32Array} */ HEAPF32, /** @type {Float64Array} */ HEAPF64; function updateGlobalBufferAndViews(buf) { buffer = buf; Module['HEAP8'] = HEAP8 = new Int8Array(buf); Module['HEAP16'] = HEAP16 = new Int16Array(buf); Module['HEAP32'] = HEAP32 = new Int32Array(buf); Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf); Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf); Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf); Module['HEAPF32'] = HEAPF32 = new Float32Array(buf); Module['HEAPF64'] = HEAPF64 = new Float64Array(buf); } var STATIC_BASE = 1024, STACK_BASE = 5340160, STACKTOP = STACK_BASE, STACK_MAX = 97280, DYNAMIC_BASE = 5340160, DYNAMICTOP_PTR = 97120; var TOTAL_STACK = 5242880; var INITIAL_INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216; // In non-standalone/normal mode, we create the memory here. // Create the main memory. (Note: this isn't used in STANDALONE_WASM mode since the wasm // memory is created in the wasm, not in JS.) if (Module['wasmMemory']) { wasmMemory = Module['wasmMemory']; } else { wasmMemory = new WebAssembly.Memory({ 'initial': INITIAL_INITIAL_MEMORY / WASM_PAGE_SIZE , 'maximum': 2147483648 / WASM_PAGE_SIZE }); } if (wasmMemory) { buffer = wasmMemory.buffer; } // If the user provides an incorrect length, just use that length instead rather than providing the user to // specifically provide the memory length with Module['INITIAL_MEMORY']. INITIAL_INITIAL_MEMORY = buffer.byteLength; updateGlobalBufferAndViews(buffer); HEAP32[DYNAMICTOP_PTR>>2] = DYNAMIC_BASE; function callRuntimeCallbacks(callbacks) { while(callbacks.length > 0) { var callback = callbacks.shift(); if (typeof callback == 'function') { callback(Module); // Pass the module as the first argument. continue; } var func = callback.func; if (typeof func === 'number') { if (callback.arg === undefined) { Module['dynCall_v'](func); } else { Module['dynCall_vi'](func, callback.arg); } } else { func(callback.arg === undefined ? null : callback.arg); } } } var __ATPRERUN__ = []; // functions called before the runtime is initialized var __ATINIT__ = []; // functions called during startup var __ATMAIN__ = []; // functions called when main() is to be run var __ATEXIT__ = []; // functions called during shutdown var __ATPOSTRUN__ = []; // functions called after the main() is called var runtimeInitialized = false; var runtimeExited = false; function preRun() { if (Module['preRun']) { if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; while (Module['preRun'].length) { addOnPreRun(Module['preRun'].shift()); } } callRuntimeCallbacks(__ATPRERUN__); } function initRuntime() { runtimeInitialized = true; callRuntimeCallbacks(__ATINIT__); } function preMain() { callRuntimeCallbacks(__ATMAIN__); } function exitRuntime() { runtimeExited = true; } function postRun() { if (Module['postRun']) { if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; while (Module['postRun'].length) { addOnPostRun(Module['postRun'].shift()); } } callRuntimeCallbacks(__ATPOSTRUN__); } function addOnPreRun(cb) { __ATPRERUN__.unshift(cb); } function addOnInit(cb) { __ATINIT__.unshift(cb); } function addOnPreMain(cb) { __ATMAIN__.unshift(cb); } function addOnExit(cb) { } function addOnPostRun(cb) { __ATPOSTRUN__.unshift(cb); } /** @param {number|boolean=} ignore */ function unSign(value, bits, ignore) { if (value >= 0) { return value; } return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts : Math.pow(2, bits) + value; } /** @param {number|boolean=} ignore */ function reSign(value, bits, ignore) { if (value <= 0) { return value; } var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32 : Math.pow(2, bits-1); if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that // but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors // TODO: In i64 mode 1, resign the two parts separately and safely value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts } return value; } // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc var Math_abs = Math.abs; var Math_cos = Math.cos; var Math_sin = Math.sin; var Math_tan = Math.tan; var Math_acos = Math.acos; var Math_asin = Math.asin; var Math_atan = Math.atan; var Math_atan2 = Math.atan2; var Math_exp = Math.exp; var Math_log = Math.log; var Math_sqrt = Math.sqrt; var Math_ceil = Math.ceil; var Math_floor = Math.floor; var Math_pow = Math.pow; var Math_imul = Math.imul; var Math_fround = Math.fround; var Math_round = Math.round; var Math_min = Math.min; var Math_max = Math.max; var Math_clz32 = Math.clz32; var Math_trunc = Math.trunc; // A counter of dependencies for calling run(). If we need to // do asynchronous work before running, increment this and // decrement it. Incrementing must happen in a place like // Module.preRun (used by emcc to add file preloading). // Note that you can add dependencies in preRun, even though // it happens right before run - run will be postponed until // the dependencies are met. var runDependencies = 0; var runDependencyWatcher = null; var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled function getUniqueRunDependency(id) { return id; } function addRunDependency(id) { runDependencies++; if (Module['monitorRunDependencies']) { Module['monitorRunDependencies'](runDependencies); } } function removeRunDependency(id) { runDependencies--; if (Module['monitorRunDependencies']) { Module['monitorRunDependencies'](runDependencies); } if (runDependencies == 0) { if (runDependencyWatcher !== null) { clearInterval(runDependencyWatcher); runDependencyWatcher = null; } if (dependenciesFulfilled) { var callback = dependenciesFulfilled; dependenciesFulfilled = null; callback(); // can add another dependenciesFulfilled } } } Module["preloadedImages"] = {}; // maps url to image data Module["preloadedAudios"] = {}; // maps url to audio data /** @param {string|number=} what */ function abort(what) { if (Module['onAbort']) { Module['onAbort'](what); } what += ''; out(what); err(what); ABORT = true; EXITSTATUS = 1; what = 'abort(' + what + '). Build with -s ASSERTIONS=1 for more info.'; // Throw a wasm runtime error, because a JS error might be seen as a foreign // exception, which means we'd run destructors on it. We need the error to // simply make the program stop. throw new WebAssembly.RuntimeError(what); } var memoryInitializer = null; function hasPrefix(str, prefix) { return String.prototype.startsWith ? str.startsWith(prefix) : str.indexOf(prefix) === 0; } // Prefix of data URIs emitted by SINGLE_FILE and related options. var dataURIPrefix = 'data:application/octet-stream;base64,'; // Indicates whether filename is a base64 data URI. function isDataURI(filename) { return hasPrefix(filename, dataURIPrefix); } var fileURIPrefix = "file://"; // Indicates whether filename is delivered via file protocol (as opposed to http/https) function isFileURI(filename) { return hasPrefix(filename, fileURIPrefix); } var wasmBinaryFile = 'rnn_denoise.wasm'; if (!isDataURI(wasmBinaryFile)) { wasmBinaryFile = locateFile(wasmBinaryFile); } function getBinary() { try { if (wasmBinary) { return new Uint8Array(wasmBinary); } if (readBinary) { return readBinary(wasmBinaryFile); } else { throw "both async and sync fetching of the wasm failed"; } } catch (err) { abort(err); } } function getBinaryPromise() { // If we don't have the binary yet, and have the Fetch api, use that; // in some environments, like Electron's render process, Fetch api may be present, but have a different context than expected, let's only use it on the Web if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) && typeof fetch === 'function' // Let's not use fetch to get objects over file:// as it's most likely Cordova which doesn't support fetch for file:// && !isFileURI(wasmBinaryFile) ) { return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) { if (!response['ok']) { throw "failed to load wasm binary file at '" + wasmBinaryFile + "'"; } return response['arrayBuffer'](); }).catch(function () { return getBinary(); }); } // Otherwise, getBinary should be able to get it synchronously return new Promise(function(resolve, reject) { resolve(getBinary()); }); } // Create the wasm instance. // Receives the wasm imports, returns the exports. function createWasm() { // prepare imports var info = { 'env': asmLibraryArg, 'wasi_snapshot_preview1': asmLibraryArg }; // Load the wasm module and create an instance of using native support in the JS engine. // handle a generated wasm instance, receiving its exports and // performing other necessary setup /** @param {WebAssembly.Module=} module*/ function receiveInstance(instance, module) { var exports = instance.exports; Module['asm'] = exports; removeRunDependency('wasm-instantiate'); } // we can't run yet (except in a pthread, where we have a custom sync instantiator) addRunDependency('wasm-instantiate'); function receiveInstantiatedSource(output) { // 'output' is a WebAssemblyInstantiatedSource object which has both the module and instance. // receiveInstance() will swap in the exports (to Module.asm) so they can be called // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line. // When the regression is fixed, can restore the above USE_PTHREADS-enabled path. receiveInstance(output['instance']); } function instantiateArrayBuffer(receiver) { return getBinaryPromise().then(function(binary) { return WebAssembly.instantiate(binary, info); }).then(receiver, function(reason) { err('failed to asynchronously prepare wasm: ' + reason); abort(reason); }); } // Prefer streaming instantiation if available. function instantiateAsync() { if (!wasmBinary && typeof WebAssembly.instantiateStreaming === 'function' && !isDataURI(wasmBinaryFile) && // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously. !isFileURI(wasmBinaryFile) && typeof fetch === 'function') { fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function (response) { var result = WebAssembly.instantiateStreaming(response, info); return result.then(receiveInstantiatedSource, function(reason) { // We expect the most common failure cause to be a bad MIME type for the binary, // in which case falling back to ArrayBuffer instantiation should work. err('wasm streaming compile failed: ' + reason); err('falling back to ArrayBuffer instantiation'); return instantiateArrayBuffer(receiveInstantiatedSource); }); }); } else { return instantiateArrayBuffer(receiveInstantiatedSource); } } // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback // to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel // to any other async startup actions they are performing. if (Module['instantiateWasm']) { try { var exports = Module['instantiateWasm'](info, receiveInstance); return exports; } catch(e) { err('Module.instantiateWasm callback failed with error: ' + e); return false; } } instantiateAsync(); return {}; // no exports yet; we'll fill them in later } // Globals used by JS i64 conversions var tempDouble; var tempI64; // === Body === var ASM_CONSTS = { }; // STATICTOP = STATIC_BASE + 96256; /* global initializers */ __ATINIT__.push({ func: function() { ___wasm_call_ctors() } }); /* no memory initializer */ // {{PRE_LIBRARY}} function demangle(func) { return func; } function demangleAll(text) { var regex = /\b_Z[\w\d_]+/g; return text.replace(regex, function(x) { var y = demangle(x); return x === y ? x : (y + ' [' + x + ']'); }); } function jsStackTrace() { var err = new Error(); if (!err.stack) { // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown, // so try that as a special-case. try { throw new Error(); } catch(e) { err = e; } if (!err.stack) { return '(no stack trace available)'; } } return err.stack.toString(); } function stackTrace() { var js = jsStackTrace(); if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace'](); return demangleAll(js); } var _emscripten_get_now;if (ENVIRONMENT_IS_NODE) { _emscripten_get_now = function() { var t = process['hrtime'](); return t[0] * 1e3 + t[1] / 1e6; }; } else if (typeof dateNow !== 'undefined') { _emscripten_get_now = dateNow; } else _emscripten_get_now = function() { return performance.now(); } ; var _emscripten_get_now_is_monotonic=true;; function setErrNo(value) { HEAP32[((___errno_location())>>2)]=value; return value; }function _clock_gettime(clk_id, tp) { // int clock_gettime(clockid_t clk_id, struct timespec *tp); var now; if (clk_id === 0) { now = Date.now(); } else if ((clk_id === 1 || clk_id === 4) && _emscripten_get_now_is_monotonic) { now = _emscripten_get_now(); } else { setErrNo(28); return -1; } HEAP32[((tp)>>2)]=(now/1000)|0; // seconds HEAP32[(((tp)+(4))>>2)]=((now % 1000)*1000*1000)|0; // nanoseconds return 0; } function _emscripten_get_sbrk_ptr() { return 97120; } function _emscripten_memcpy_big(dest, src, num) { HEAPU8.copyWithin(dest, src, src + num); } function _emscripten_get_heap_size() { return HEAPU8.length; } function emscripten_realloc_buffer(size) { try { // round size grow request up to wasm page size (fixed 64KB per spec) wasmMemory.grow((size - buffer.byteLength + 65535) >>> 16); // .grow() takes a delta compared to the previous size updateGlobalBufferAndViews(wasmMemory.buffer); return 1 /*success*/; } catch(e) { } }function _emscripten_resize_heap(requestedSize) { requestedSize = requestedSize >>> 0; var oldSize = _emscripten_get_heap_size(); // With pthreads, races can happen (another thread might increase the size in between), so return a failure, and let the caller retry. var PAGE_MULTIPLE = 65536; // Memory resize rules: // 1. When resizing, always produce a resized heap that is at least 16MB (to avoid tiny heap sizes receiving lots of repeated resizes at startup) // 2. Always increase heap size to at least the requested size, rounded up to next page multiple. // 3a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap geometrically: increase the heap size according to // MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), // At most overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB). // 3b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap linearly: increase the heap size by at least MEMORY_GROWTH_LINEAR_STEP bytes. // 4. Max size for the heap is capped at 2048MB-PAGE_MULTIPLE, or by MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest // 5. If we were unable to allocate as much memory, it may be due to over-eager decision to excessively reserve due to (3) above. // Hence if an allocation fails, cut down on the amount of excess growth, in an attempt to succeed to perform a smaller allocation. // A limit was set for how much we can grow. We should not exceed that // (the wasm binary specifies it, so if we tried, we'd fail anyhow). var maxHeapSize = 2147483648; if (requestedSize > maxHeapSize) { return false; } var minHeapSize = 16777216; // Loop through potential heap size increases. If we attempt a too eager reservation that fails, cut down on the // attempted size and reserve a smaller bump instead. (max 3 times, chosen somewhat arbitrarily) for(var cutDown = 1; cutDown <= 4; cutDown *= 2) { var overGrownHeapSize = oldSize * (1 + 0.2 / cutDown); // ensure geometric growth // but limit overreserving (default to capping at +96MB overgrowth at most) overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296 ); var newSize = Math.min(maxHeapSize, alignUp(Math.max(minHeapSize, requestedSize, overGrownHeapSize), PAGE_MULTIPLE)); var replacement = emscripten_realloc_buffer(newSize); if (replacement) { return true; } } return false; } 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); }};var SYSCALLS={mappings:{},buffers:[null,[],[]],printChar:function(stream, curr) { var buffer = SYSCALLS.buffers[stream]; if (curr === 0 || curr === 10) { (stream === 1 ? out : err)(UTF8ArrayToString(buffer, 0)); buffer.length = 0; } else { buffer.push(curr); } },varargs:undefined,get:function() { SYSCALLS.varargs += 4; var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)]; return ret; },getStr:function(ptr) { var ret = UTF8ToString(ptr); return ret; },get64:function(low, high) { return low; }};function _fd_close(fd) { return 0; } function _fd_seek(fd, offset_low, offset_high, whence, newOffset) { } function flush_NO_FILESYSTEM() { // flush anything remaining in the buffers during shutdown if (typeof _fflush !== 'undefined') _fflush(0); var buffers = SYSCALLS.buffers; if (buffers[1].length) SYSCALLS.printChar(1, 10); if (buffers[2].length) SYSCALLS.printChar(2, 10); }function _fd_write(fd, iov, iovcnt, pnum) { // hack to support printf in SYSCALLS_REQUIRE_FILESYSTEM=0 var num = 0; for (var i = 0; i < iovcnt; i++) { var ptr = HEAP32[(((iov)+(i*8))>>2)]; var len = HEAP32[(((iov)+(i*8 + 4))>>2)]; for (var j = 0; j < len; j++) { SYSCALLS.printChar(fd, HEAPU8[ptr+j]); } num += len; } HEAP32[((pnum)>>2)]=num return 0; } function _setTempRet0($i) { setTempRet0(($i) | 0); } var ASSERTIONS = false; /** @type {function(string, boolean=, number=)} */ function intArrayFromString(stringy, dontAddNull, length) { var len = length > 0 ? length : lengthBytesUTF8(stringy)+1; var u8array = new Array(len); var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length); if (dontAddNull) u8array.length = numBytesWritten; return u8array; } function intArrayToString(array) { var ret = []; for (var i = 0; i < array.length; i++) { var chr = array[i]; if (chr > 0xFF) { if (ASSERTIONS) { assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.'); } chr &= 0xFF; } ret.push(String.fromCharCode(chr)); } return ret.join(''); } var asmGlobalArg = {}; var asmLibraryArg = { "clock_gettime": _clock_gettime, "emscripten_get_sbrk_ptr": _emscripten_get_sbrk_ptr, "emscripten_memcpy_big": _emscripten_memcpy_big, "emscripten_resize_heap": _emscripten_resize_heap, "fd_close": _fd_close, "fd_seek": _fd_seek, "fd_write": _fd_write, "memory": wasmMemory, "setTempRet0": _setTempRet0, "table": wasmTable }; var asm = createWasm(); /** @type {function(...*):?} */ var ___wasm_call_ctors = Module["___wasm_call_ctors"] = function() { return (___wasm_call_ctors = Module["___wasm_call_ctors"] = Module["asm"]["__wasm_call_ctors"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnoise_get_size = Module["_rnnoise_get_size"] = function() { return (_rnnoise_get_size = Module["_rnnoise_get_size"] = Module["asm"]["rnnoise_get_size"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnoise_init = Module["_rnnoise_init"] = function() { return (_rnnoise_init = Module["_rnnoise_init"] = Module["asm"]["rnnoise_init"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnoise_create = Module["_rnnoise_create"] = function() { return (_rnnoise_create = Module["_rnnoise_create"] = Module["asm"]["rnnoise_create"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _malloc = Module["_malloc"] = function() { return (_malloc = Module["_malloc"] = Module["asm"]["malloc"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnoise_destroy = Module["_rnnoise_destroy"] = function() { return (_rnnoise_destroy = Module["_rnnoise_destroy"] = Module["asm"]["rnnoise_destroy"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _free = Module["_free"] = function() { return (_free = Module["_free"] = Module["asm"]["free"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnoise_process_frame = Module["_rnnoise_process_frame"] = function() { return (_rnnoise_process_frame = Module["_rnnoise_process_frame"] = Module["asm"]["rnnoise_process_frame"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _denoise_proc = Module["_denoise_proc"] = function() { return (_denoise_proc = Module["_denoise_proc"] = Module["asm"]["denoise_proc"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnDenoise_rawmem = Module["_rnnDenoise_rawmem"] = function() { return (_rnnDenoise_rawmem = Module["_rnnDenoise_rawmem"] = Module["asm"]["rnnDenoise_rawmem"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _rnnDenoise_rawmem_perf = Module["_rnnDenoise_rawmem_perf"] = function() { return (_rnnDenoise_rawmem_perf = Module["_rnnDenoise_rawmem_perf"] = Module["asm"]["rnnDenoise_rawmem_perf"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _get_rnnDenoise_rawmem_time = Module["_get_rnnDenoise_rawmem_time"] = function() { return (_get_rnnDenoise_rawmem_time = Module["_get_rnnDenoise_rawmem_time"] = Module["asm"]["get_rnnDenoise_rawmem_time"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _getResultPointer = Module["_getResultPointer"] = function() { return (_getResultPointer = Module["_getResultPointer"] = Module["asm"]["getResultPointer"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _getResultSize = Module["_getResultSize"] = function() { return (_getResultSize = Module["_getResultSize"] = Module["asm"]["getResultSize"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _getsampleRate = Module["_getsampleRate"] = function() { return (_getsampleRate = Module["_getsampleRate"] = Module["asm"]["getsampleRate"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _getchannels = Module["_getchannels"] = function() { return (_getchannels = Module["_getchannels"] = Module["asm"]["getchannels"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _getsampleCount = Module["_getsampleCount"] = function() { return (_getsampleCount = Module["_getsampleCount"] = Module["asm"]["getsampleCount"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _freeBuffer = Module["_freeBuffer"] = function() { return (_freeBuffer = Module["_freeBuffer"] = Module["asm"]["freeBuffer"]).apply(null, arguments); }; /** @type {function(...*):?} */ var _main = Module["_main"] = function() { return (_main = Module["_main"] = Module["asm"]["main"]).apply(null, arguments); }; /** @type {function(...*):?} */ var ___errno_location = Module["___errno_location"] = function() { return (___errno_location = Module["___errno_location"] = Module["asm"]["__errno_location"]).apply(null, arguments); }; /** @type {function(...*):?} */ var stackSave = Module["stackSave"] = function() { return (stackSave = Module["stackSave"] = Module["asm"]["stackSave"]).apply(null, arguments); }; /** @type {function(...*):?} */ var stackRestore = Module["stackRestore"] = function() { return (stackRestore = Module["stackRestore"] = Module["asm"]["stackRestore"]).apply(null, arguments); }; /** @type {function(...*):?} */ var stackAlloc = Module["stackAlloc"] = function() { return (stackAlloc = Module["stackAlloc"] = Module["asm"]["stackAlloc"]).apply(null, arguments); }; /** @type {function(...*):?} */ var __growWasmMemory = Module["__growWasmMemory"] = function() { return (__growWasmMemory = Module["__growWasmMemory"] = Module["asm"]["__growWasmMemory"]).apply(null, arguments); }; /** @type {function(...*):?} */ var dynCall_ii = Module["dynCall_ii"] = function() { return (dynCall_ii = Module["dynCall_ii"] = Module["asm"]["dynCall_ii"]).apply(null, arguments); }; /** @type {function(...*):?} */ var dynCall_iiii = Module["dynCall_iiii"] = function() { return (dynCall_iiii = Module["dynCall_iiii"] = Module["asm"]["dynCall_iiii"]).apply(null, arguments); }; /** @type {function(...*):?} */ var dynCall_jiji = Module["dynCall_jiji"] = function() { return (dynCall_jiji = Module["dynCall_jiji"] = Module["asm"]["dynCall_jiji"]).apply(null, arguments); }; // === Auto-generated postamble setup entry stuff === Module["cwrap"] = cwrap; var calledRun; /** * @constructor * @this {ExitStatus} */ function ExitStatus(status) { this.name = "ExitStatus"; this.message = "Program terminated with exit(" + status + ")"; this.status = status; } 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 (!calledRun) run(); if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled }; function callMain(args) { var entryFunction = Module['_main']; args = args || []; var argc = args.length+1; var argv = stackAlloc((argc + 1) * 4); HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram); for (var i = 1; i < argc; i++) { HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]); } HEAP32[(argv >> 2) + argc] = 0; try { var ret = entryFunction(argc, argv); // In PROXY_TO_PTHREAD builds, we should never exit the runtime below, as execution is asynchronously handed // off to a pthread. // if we're not running an evented main loop, it's time to exit exit(ret, /* implicit = */ true); } 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 == 'unwind') { // running an evented main loop, don't immediately exit noExitRuntime = true; return; } else { var toLog = e; if (e && typeof e === 'object' && e.stack) { toLog = [e, e.stack]; } err('exception thrown: ' + toLog); quit_(1, e); } } finally { calledMain = true; } } /** @type {function(Array=)} */ function run(args) { args = args || arguments_; if (runDependencies > 0) { return; } preRun(); if (runDependencies > 0) return; // a preRun added a dependency, run will be called later function doRun() { // run may have just been called through dependencies being fulfilled just in this very frame, // or while the async setStatus time below was happening if (calledRun) return; calledRun = true; Module['calledRun'] = true; if (ABORT) return; initRuntime(); preMain(); if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized'](); if (shouldRunNow) callMain(args); postRun(); } if (Module['setStatus']) { Module['setStatus']('Running...'); setTimeout(function() { setTimeout(function() { Module['setStatus'](''); }, 1); doRun(); }, 1); } else { doRun(); } } Module['run'] = run; /** @param {boolean|number=} implicit */ function exit(status, implicit) { // if this is just main exit-ing implicitly, and the status is 0, then we // don't need to do anything here and can just leave. if the status is // non-zero, though, then we need to report it. // (we may have warned about this earlier, if a situation justifies doing so) if (implicit && noExitRuntime && status === 0) { return; } if (noExitRuntime) { } else { ABORT = true; EXITSTATUS = status; exitRuntime(); if (Module['onExit']) Module['onExit'](status); } quit_(status, new ExitStatus(status)); } 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; noExitRuntime = true; run(); // {{MODULE_ADDITIONS}} var BUFF_SIZE = 16384; //var startRecordingButton = document.getElementById("startRecordingButton"); //var stopRecordingButton = document.getElementById("stopRecordingButton"); //var playButtonR = document.getElementById("playButtonR"); //var playButtonD = document.getElementById("playButtonD"); //var fileElem = document.getElementById('file-input'); //var lRecordingMsg = document.getElementById('RecordingMessage'); //var lProcessingMode = document.getElementById('ProcessingMode'); //var lSampleRate = document.getElementById('SampleRate'); //var lDataSize = document.getElementById('DataSize'); //var lTimeIntervel = document.getElementById('TimeIntervel'); //var lKbps = document.getElementById('Kbps'); //var myBr = document.createElement('br'); var fileContents = null; var leftchannel = []; var rightchannel = []; var denoisedchannel = []; var recorder = null; var recordingLength = 0; var volume = null; var mediaStream = null; var sampleRate = 44100; var sampleSize = 0; var context = null; var blobIn = null; var blobOut = null; var wasm_processing_time = 0; var total_wasm_processing_time = 0; function reset() { fileContents = null; leftchannel = []; rightchannel = []; denoisedchannel = []; recorder = null; recordingLength = 0; volume = null; mediaStream = null; sampleRate = 44100; context = null; blobIn = null; blobOut = null; } /* fileElem.addEventListener('change', readSingleFile, false); function readSingleFile(e) { const file = e.target.files[0]; if (!file) { return; } reset(); var reader = new FileReader(); reader.onload = function(e) { contents = e.target.result; fileContents = contents; // Use WebAudio var ac = new (AudioContext || webkitAudioContext)(); ac.decodeAudioData(contents).then(function(buffer) { audioBufferFromFile = buffer; sampleRate = buffer.sampleRate; recordingLength = buffer.length; leftchannel.push(audioBufferFromFile.getChannelData(0)); sampleSize = audioBufferFromFile.getChannelData(0).length; //Input files are used for perf assessment. denoisedchannel.push(wasm_denoise_stream_perf(audioBufferFromFile.getChannelData(0))); // playF32Audio(buffer.getChannelData(0), 503784, 48000); // console.log("Wasm Performance:"); // console.log(); // console.log("Processing Audio File: " + file.name); // console.log("SampleRate: " + sampleRate); // console.log("DataSize (bytes): " + sampleSize); // console.log(); // console.log("Time Intervel (ms): " + wasm_processing_time); // console.log("Kbps: " + sampleSize / wasm_processing_time ); lProcessingMode.innerHTML = 'Processed Audio File: '+file.name+'
'; lSampleRate.innerHTML = 'Sample Rate: '+sampleRate+'
'; lDataSize.innerHTML = 'Data Size (bytes): '+sampleSize+'
'; lTimeIntervel.innerHTML = 'Wasm Time Elapsed (ms): '+wasm_processing_time+'
'; lKbps.innerHTML = 'Kbps: '+sampleSize/wasm_processing_time+'
'; }) }; // reader.readAsBinaryString(file); reader.readAsArrayBuffer(file); } startRecordingButton.addEventListener("click", function () { reset(); lRecordingMsg.innerHTML='Recording in progress..'; // Initialize recorder navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; navigator.getUserMedia( { audio: true }, function (e) { console.log("user consent"); // creates the audio context window.AudioContext = window.AudioContext || window.webkitAudioContext; // context = new AudioContext({sampleRate: 48000}); context = new AudioContext(); // creates an audio node from the microphone incoming stream mediaStream = context.createMediaStreamSource(e); // onaudioprocess is triggered when bufferSize is full. Acceps power of two upto 16384. var bufferSize = BUFF_SIZE; //currently limited to single channel audio. Sterio is doable fairly easily. var numberOfInputChannels = 1; var numberOfOutputChannels = 1; if (context.createScriptProcessor) { recorder = context.createScriptProcessor(bufferSize, numberOfInputChannels, numberOfOutputChannels); } else { recorder = context.createJavaScriptNode(bufferSize, numberOfInputChannels, numberOfOutputChannels); } recorder.onaudioprocess = function (e) { leftchannel.push(new Float32Array(e.inputBuffer.getChannelData(0))); var outbuffer = wasm_denoise_stream_perf(e.inputBuffer.getChannelData(0)); denoisedchannel.push(outbuffer); recordingLength += bufferSize; } // Recorder. Needs user permission. mediaStream.connect(recorder); recorder.connect(context.destination); }, function (e) { console.error(e); }); }); stopRecordingButton.addEventListener("click", function () { recorder.disconnect(context.destination); mediaStream.disconnect(recorder); lRecordingMsg.innerHTML=''; lProcessingMode.innerHTML = 'Processed microphone stream:'+'
'; lSampleRate.innerHTML = 'Sample Rate: '+sampleRate+'
'; lDataSize.innerHTML = 'Data Size (bytes): '+recordingLength+'
'; lTimeIntervel.innerHTML = 'Wasm Time Elapsed (ms): '+total_wasm_processing_time+'
'; lKbps.innerHTML = 'Kbps: '+recordingLength/total_wasm_processing_time+'
'; }); playButtonR.addEventListener("click", function () { if (leftchannel == null) { return; } var inAudioF32 = flattenArray(leftchannel, recordingLength); playF32Audio(inAudioF32, recordingLength, sampleRate); }); playButtonD.addEventListener("click", function () { if (denoisedchannel == null) { return; } var outAudioF32 = flattenArray(denoisedchannel, recordingLength); playF32Audio(outAudioF32, recordingLength, sampleRate); }); */ function flattenArray(channelBuffer, recordingLength) { var result = new Float32Array(recordingLength); var offset = 0; for (var i = 0; i < channelBuffer.length; i++) { var buffer = channelBuffer[i]; result.set(buffer, offset); offset += buffer.length; } return result; } //Play raw f32Array audio using WebAudio function playF32Audio(f32buffer, inSize, inSampleRate) { var audioCtx = new (window.AudioContext || window.webkitAudioContext)({sampleRate: inSampleRate}); var myArrayBuffer = audioCtx.createBuffer(1, inSize, inSampleRate); myArrayBuffer.copyToChannel(f32buffer, 0,0); var source = audioCtx.createBufferSource(); source.buffer = myArrayBuffer; source.connect(audioCtx.destination); source.start(); } //cwrap wasm api's for ease of use // let wasm_rnnDenoiseMem = Module.cwrap('rnnDenoiseMem', 'number', ['number', 'number']); let wasm_getsampleCount = Module.cwrap('getsampleCount', 'number'); let wasm_getsampleRate = Module.cwrap('getsampleRate', 'number'); let wasm_getResultSize = Module.cwrap('getResultSize', 'number', []); let wasm_getResultPointer = Module.cwrap('getResultPointer', 'number', []); let wasm_rnnDenoise_rawmem = Module.cwrap('rnnDenoise_rawmem', 'number', ['number', 'number', 'number', 'number']); let wasm_rnnDenoise_rawmem_perf = Module.cwrap('rnnDenoise_rawmem_perf', 'number', ['number', 'number', 'number', 'number']); let wasm_get_rnnDenoise_rawmem_time = Module.cwrap('get_rnnDenoise_rawmem_time', 'number', ['']); let wasm_freeBuffer = Module.cwrap('freeBuffer', '', []); //// // WASM denoise wav files. will use wav library to decode. // To enable define USE_WAV_MP3_LIBRARIES in rnnoise demo source and rebuild wasm modules //// // function wasm_denoise_Arr(audioArrayBuffer) // { // var u8audiobuffer = new Uint8Array(audioArrayBuffer); // let wasm_memp_in = Module._malloc(u8audiobuffer.length); // let wasm_mem = new Uint8Array(wasmMemory.buffer, wasm_memp_in, u8audiobuffer.length); // wasm_mem.set(u8audiobuffer); // //wasm call // let x= wasm_rnnDenoiseMem(wasm_memp_in, u8audiobuffer.length); // recordingLength = getResultSize(); // sampleRate = getsampleRate(); // let bProcessedArr = new Uint8Array(wasmMemory.buffer, x, u8audiobuffer.length); // var fProcessedArr = new Float32Array(getResultSize()); // fProcessedArr = new Float32Array(wasmMemory.buffer, x, getsampleCount()); // //Test // // playF32Audio(fProcessedArr, getResultSize(), getsampleRate()); // return fProcessedArr; // } //WASM Denoise raw audio in f32array function wasm_denoise_stream(f32buffer) { let wasm_memp_in = Module._malloc(f32buffer.length * 4 ); let wasm_mem = new Float32Array(wasmMemory.buffer, wasm_memp_in, f32buffer.length); wasm_mem.set(f32buffer); //wasm call let x= wasm_rnnDenoise_rawmem(wasm_memp_in, sampleRate, 1, f32buffer.length); let fProcessedArr = new Float32Array(wasmMemory.buffer, x, f32buffer.length); //Test // playF32Audio(f32buffer, fProcessedArr.length, sampleRate); // playF32Audio(fProcessedArr, fProcessedArr.length, sampleRate); return fProcessedArr; } //WASM Denoise raw audio in f32array function wasm_denoise_stream_perf(f32buffer) { let wasm_memp_in = Module._malloc(f32buffer.length * 4); let wasm_mem = new Float32Array(wasmMemory.buffer, wasm_memp_in, f32buffer.length); wasm_mem.set(f32buffer); //wasm call let t0 = performance.now(); let x= wasm_rnnDenoise_rawmem(wasm_memp_in, sampleRate, 1, f32buffer.length); let t1 = performance.now(); wasm_processing_time = t1 - t0; //lTimeIntervel.innerHTML='Buffer Processing Time: '+wasm_processing_time; total_wasm_processing_time = total_wasm_processing_time + wasm_processing_time; // console.log( 'Buffer Processing Time: ' + wasm_processing_time ); let fProcessedArr = new Float32Array(wasmMemory.buffer, x, f32buffer.length); return fProcessedArr; }