<aside> 💡 Description: Sandbox Avatar material customiser. Custom 2D UI integration from dynamic 3D scene control.
</aside>
ColorPicker - handle color picker logic & UI
const events = {
initializeColorInput : "initializeColorInput",
onChangeColorInput : "onChangeColorInput"
}
const colorisStyles = document.createElement('link');
colorisStyles.href = '<https://cdn.jsdelivr.net/gh/mdbassit/Coloris@latest/dist/coloris.min.css>';
colorisStyles.rel = 'stylesheet';
document.getElementsByTagName('head')[0].appendChild(colorisStyles);
//Using loadScript instead
// const colorisScript = document.createElement('script');
// colorisScript.setAttribute('src','<https://cdn.jsdelivr.net/gh/mdbassit/Coloris@latest/dist/coloris.min.js>');
// document.head.appendChild(colorisScript);
function loadScript( url, callback ) {
var script = document.createElement( "script" )
script.type = "text/javascript";
if(script.readyState) { // only required for IE <9
script.onreadystatechange = function() {
if ( script.readyState === "loaded" || script.readyState === "complete" ) {
script.onreadystatechange = null;
callback();
}
};
} else { //Others
script.onload = function() {
callback();
};
}
script.src = url;
document.getElementsByTagName( "head" )[0].appendChild( script );
}
const onScriptLoaded = () => {
const globalWrapper = document.getElementById("geenee-ui-global--wrapper");
Coloris({
focusInput: false
})
//Instead of initializing UI using listeners
// const buttons = {
// top: ["160px", "240px", "320px"],
// };
// const initializeUI = () => {
// for (let i = 0; i < buttons.top.length; i++) {
// initializeButtons(
// buttons.top[i]
// );
// }
// }
//initializeUI();
const initializeColorInput = (e) => {
const left = e.detail.left;
const top = e.detail.top;
const id = e.detail.id;
const color = e.detail.color;
//console.log("Initialize color input with values: " + JSON.stringify(e.detail));
const divWrapper = document.createElement("div");
divWrapper.style = buttonWrapperStyle;
divWrapper.style.top = top;
divWrapper.style.left = left;
globalWrapper.appendChild(divWrapper);
const colorInput = document.createElement("input");
colorInput.type = "text";
colorInput.setAttribute("data-coloris", "");
colorInput.style = inputStyle;
colorInput.setAttribute("materialId", id);
colorInput.value = color;
colorInput.style.backgroundColor = color;
colorInput.setAttribute("readonly", "");
colorInput.onfocus = () => { document.activeElement.blur(); };
colorInput.onfocus = () => { colorInput.removeAttribute("readonly"), "" };
colorInput.onblur = () => {colorInput.setAttribute("readonly", "")};
divWrapper.appendChild(colorInput);
colorInput.addEventListener('change', (e) => {
colorInput.style.backgroundColor = e.target.value;
const onChangeColorInput = new CustomEvent(events.onChangeColorInput, {
detail: {
id: colorInput.getAttribute("materialId"),
color: e.target.value
}
});
document.dispatchEvent(onChangeColorInput);
});
}
document.addEventListener(events.initializeColorInput, initializeColorInput);
}
const buttonWrapperStyle =
"position: absolute; z-index: 1; left: 15px; top: 80px; background-color: rgba(255, 255, 255, 0.15); -webkit-backdrop-filter: blur(15px); width: 45px; height: 45px; border-top-left-radius: 100%; border-top-right-radius: 100%; border-bottom-right-radius: 100%; border-bottom-left-radius: 100%; display: flex; -webkit-box-align: center; align-items: center; -webkit-box-pack: center; justify-content: center;";
const inputStyle = "caret-color: transparent; width: 30px; height: 30px; color: transparent; border: transparent; border-radius: 30px";
const pathtoscript = "<https://cdn.jsdelivr.net/gh/mdbassit/Coloris@latest/dist/coloris.min.js>";
loadScript(pathtoscript, onScriptLoaded);
Vox Mesh Factory - handle mesh creation
const events = {
initializeColorInput: "initializeColorInput",
onChangeColorInput: "onChangeColorInput",
};
this.activeSceneModel.$parent.emitter.addListener("geenee-model-placed", () => {
//console.dir(this.object3D.parent);
//console.log("Name: " + this.object3D.children[0].children[0].name); // Our cube object
//Disable gestures. Optional.
this.activeSceneModel.setScene3DSettingsOption("defaultCanvasClick", false);
this.activeSceneModel.setGestureOption("dragOn", false);
const thisObject3D = this.object3D;
const thisObjectGroup = this.object3D.children[0];
const thisObjectMesh = this.object3D.children[0].children[0];
thisObjectMesh.visible = false;
document.addEventListener("onVoxModelLoaded", function (e) {
//console.log(e.detail);
const voxData = JSON.parse(e.detail);
meshFactory(voxData);
});
async function meshFactory(voxData) {
let meshGroup = new THREE.Group();
const meshes = new Array();
thisObjectGroup.add(meshGroup);
const colors = voxData.rgba.values;
//Create materials
const materials = createMaterials(voxData, colors);
//Create meshes
for (let i = 0; i < voxData.xyzi.values.length; i++) {
meshes.push(createMesh(voxData.xyzi.values[i], meshGroup, materials));
}
//Recenter meshGroup
let bboxGroup = new THREE.Group();
for (const mesh of meshes) bboxGroup.attach(mesh);
let bboxInital = new THREE.Box3().setFromObject(bboxGroup);
let bboxCenter = new THREE.Vector3();
bboxInital.getCenter(bboxCenter);
meshGroup.position.set(bboxCenter.x, bboxCenter.y, bboxCenter.z);
//Attach meshes
for await (const mesh of meshes) meshGroup.attach(mesh);
//Set Rotation & Scale
meshGroup.position.set(1, 0, 0); // 1 is a temporarly workaround. Probably position should be 100% precise based on this.Object3D center. TODO.
meshGroup.scale.set(0.05, 0.05, 0.05);
meshGroup.rotateX(degToRad(-90));
meshGroup.rotateZ(degToRad(180));
//console.log("meshGroup.position: " + JSON.stringify(meshGroup.position));
//console.log("thisObjectMesh.position: " + JSON.stringify(thisObjectMesh.position));
//Create & compute bounding box
let bbox = new THREE.Box3().setFromObject(meshGroup);
// Visible bounding box
// let helper = new THREE.BoundingBoxHelper(meshGroup, 0xff0000);
// helper.update();
// scene.add(helper);
//Reposition model to be on the ground
const bboxScale = new THREE.Vector3();
bbox.getSize(bboxScale);
const bottomPivotY = bboxScale.y / 2;
meshGroup.position.setY(bottomPivotY);
//Initialize color inputs
//top: ["160px", "240px", "320px"],
let y = 0;
const itemsInColumn = 8;
let mathFloorBuffer = 0;
for (let i = 0; i < materials.length; i++) {
const mathFloor = Math.floor(i / itemsInColumn);
y = mathFloorBuffer != mathFloor ? 0 : i - mathFloor * itemsInColumn;
const top = 40 + y * 60 + "px";
const left = 15 + mathFloor * 60 + "px";
const initializeColorInput = new CustomEvent(
events.initializeColorInput,
{
detail: {
id: i,
color: materials[i].material.color.getHexString(),
top: top,
left: left,
},
}
);
document.dispatchEvent(initializeColorInput);
mathFloorBuffer = mathFloor;
y++;
}
//Change material colors on color input change
document.addEventListener(events.onChangeColorInput, (e) => {
const id = e.detail.id;
const color = e.detail.color;
const rgb255Color = hexToRgb(color);
materials[id].material.color.set(
`rgb(${rgb255Color.r}, ${rgb255Color.g}, ${rgb255Color.b})`
);
materials[id].material.needsUpdate = true;
//console.log(`Change material ${id} color with value hex: ${color} and rgb: ${JSON.stringify(rgb255Color)}`);
//console.log(`New material ${id} color: ${materials[id].material.color.getHexString()}`)
});
}
function createMaterials(voxData, colorsArray) {
const materials = new Array();
const colorIndexes = voxData.xyzi.values.map((value) => value.i);
const uniqueColorIndexes = [...new Set(colorIndexes)];
for (let i = 0; i < uniqueColorIndexes.length; i++) {
materials[i] = {};
materials[i].index = uniqueColorIndexes[i];
const material = new THREE.MeshStandardMaterial(); //new THREE.MeshBasicMaterial();
const color = colorsArray[uniqueColorIndexes[i] - 1];
material.color = new THREE.Color(
`rgb(${color.r}, ${color.g}, ${color.b})`
);
materials[i].material = material;
}
//console.log("colorIndexes:" + uniqueColorIndexes);
//console.log("Materials Length: " + materials.length);
return materials;
}
const createMesh = (voxel, meshGroup, materials) => {
const geometry = new THREE.BoxBufferGeometry(1, 1, 1);
const material = materials.find(
(material) => material.index === voxel.i
).material;
//Unique material for each cube. Could be useful for others POCs.
// const material = new THREE.MeshBasicMaterial();
// const color = colorsArray[voxel.i-1];
// material.color = new THREE.Color(`rgb(${color.r}, ${color.g}, ${color.b})`);
const cube = new THREE.Mesh(geometry, material);
cube.position.set(voxel.x, voxel.y, voxel.z);
thisObjectGroup.add(cube);
//scene.add(cube);
return cube;
};
});
function degToRad(degrees) {
let pi = Math.PI;
return degrees * (pi / 180);
}
function hexToRgb(hex) {
var result = /^#?([a-f\\d]{2})([a-f\\d]{2})([a-f\\d]{2})$/i.exec(hex);
return result
? {
r: parseInt(result[1], 16),
g: parseInt(result[2], 16),
b: parseInt(result[3], 16),
}
: null;
}
function rgb255ToRgb(rgb) {
return {
r: rgb.r / 255,
g: rgb.g / 255,
b: rgb.b / 255,
};
}
Vox Loader ( Built with webpack )
this.activeSceneModel.$parent.emitter.addListener("geenee-model-placed", () => {
(function () {
function r(e, n, t) {
function o(i, f) {
if (!n[i]) {
if (!e[i]) {
var c = "function" == typeof require && require;
if (!f && c) return c(i, !0);
if (u) return u(i, !0);
var a = new Error("Cannot find module '" + i + "'");
throw ((a.code = "MODULE_NOT_FOUND"), a);
}
var p = (n[i] = { exports: {} });
e[i][0].call(
p.exports,
function (r) {
var n = e[i][1][r];
return o(n || r);
},
p,
p.exports,
r,
e,
n,
t
);
}
return n[i].exports;
}
for (
var u = "function" == typeof require && require, i = 0;
i < t.length;
i++
)
o(t[i]);
return o;
}
return r;
})()(
{
1: [
function (require, module, exports) {
"use strict";
exports.byteLength = byteLength;
exports.toByteArray = toByteArray;
exports.fromByteArray = fromByteArray;
var lookup = [];
var revLookup = [];
var Arr = typeof Uint8Array !== "undefined" ? Uint8Array : Array;
var code =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
for (var i = 0, len = code.length; i < len; ++i) {
lookup[i] = code[i];
revLookup[code.charCodeAt(i)] = i;
}
// Support decoding URL-safe base64 strings, as Node.js does.
// See: <https://en.wikipedia.org/wiki/Base64#URL_applications>
revLookup["-".charCodeAt(0)] = 62;
revLookup["_".charCodeAt(0)] = 63;
function getLens(b64) {
var len = b64.length;
if (len % 4 > 0) {
throw new Error("Invalid string. Length must be a multiple of 4");
}
// Trim off extra bytes after placeholder bytes are found
// See: <https://github.com/beatgammit/base64-js/issues/42>
var validLen = b64.indexOf("=");
if (validLen === -1) validLen = len;
var placeHoldersLen = validLen === len ? 0 : 4 - (validLen % 4);
return [validLen, placeHoldersLen];
}
// base64 is 4/3 + up to two characters of the original data
function byteLength(b64) {
var lens = getLens(b64);
var validLen = lens[0];
var placeHoldersLen = lens[1];
return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen;
}
function _byteLength(b64, validLen, placeHoldersLen) {
return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen;
}
function toByteArray(b64) {
var tmp;
var lens = getLens(b64);
var validLen = lens[0];
var placeHoldersLen = lens[1];
var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen));
var curByte = 0;
// if there are placeholders, only get up to the last complete 4 chars
var len = placeHoldersLen > 0 ? validLen - 4 : validLen;
var i;
for (i = 0; i < len; i += 4) {
tmp =
(revLookup[b64.charCodeAt(i)] << 18) |
(revLookup[b64.charCodeAt(i + 1)] << 12) |
(revLookup[b64.charCodeAt(i + 2)] << 6) |
revLookup[b64.charCodeAt(i + 3)];
arr[curByte++] = (tmp >> 16) & 0xff;
arr[curByte++] = (tmp >> 8) & 0xff;
arr[curByte++] = tmp & 0xff;
}
if (placeHoldersLen === 2) {
tmp =
(revLookup[b64.charCodeAt(i)] << 2) |
(revLookup[b64.charCodeAt(i + 1)] >> 4);
arr[curByte++] = tmp & 0xff;
}
if (placeHoldersLen === 1) {
tmp =
(revLookup[b64.charCodeAt(i)] << 10) |
(revLookup[b64.charCodeAt(i + 1)] << 4) |
(revLookup[b64.charCodeAt(i + 2)] >> 2);
arr[curByte++] = (tmp >> 8) & 0xff;
arr[curByte++] = tmp & 0xff;
}
return arr;
}
function tripletToBase64(num) {
return (
lookup[(num >> 18) & 0x3f] +
lookup[(num >> 12) & 0x3f] +
lookup[(num >> 6) & 0x3f] +
lookup[num & 0x3f]
);
}
function encodeChunk(uint8, start, end) {
var tmp;
var output = [];
for (var i = start; i < end; i += 3) {
tmp =
((uint8[i] << 16) & 0xff0000) +
((uint8[i + 1] << 8) & 0xff00) +
(uint8[i + 2] & 0xff);
output.push(tripletToBase64(tmp));
}
return output.join("");
}
function fromByteArray(uint8) {
var tmp;
var len = uint8.length;
var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes
var parts = [];
var maxChunkLength = 16383; // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (
var i = 0, len2 = len - extraBytes;
i < len2;
i += maxChunkLength
) {
parts.push(
encodeChunk(
uint8,
i,
i + maxChunkLength > len2 ? len2 : i + maxChunkLength
)
);
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1];
parts.push(lookup[tmp >> 2] + lookup[(tmp << 4) & 0x3f] + "==");
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + uint8[len - 1];
parts.push(
lookup[tmp >> 10] +
lookup[(tmp >> 4) & 0x3f] +
lookup[(tmp << 2) & 0x3f] +
"="
);
}
return parts.join("");
}
},
{},
],
2: [
function (require, module, exports) {
(function (Buffer) {
(function () {
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <https://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
"use strict";
var base64 = require("base64-js");
var ieee754 = require("ieee754");
exports.Buffer = Buffer;
exports.SlowBuffer = SlowBuffer;
exports.INSPECT_MAX_BYTES = 50;
var K_MAX_LENGTH = 0x7fffffff;
exports.kMaxLength = K_MAX_LENGTH;
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Print warning and recommend using `buffer` v4.x which has an Object
* implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* We report that the browser does not support typed arrays if the are not subclassable
* using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
* (See: <https://bugzilla.mozilla.org/show_bug.cgi?id=695438>). IE 10 lacks support
* for __proto__ and has a buggy typed array implementation.
*/
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport();
if (
!Buffer.TYPED_ARRAY_SUPPORT &&
typeof console !== "undefined" &&
typeof console.error === "function"
) {
console.error(
"This browser lacks typed array (Uint8Array) support which is required by " +
"`buffer` v5.x. Use `buffer` v4.x if you require old browser support."
);
}
function typedArraySupport() {
// Can typed array instances can be augmented?
try {
var arr = new Uint8Array(1);
arr.__proto__ = {
__proto__: Uint8Array.prototype,
foo: function () {
return 42;
},
};
return arr.foo() === 42;
} catch (e) {
return false;
}
}
Object.defineProperty(Buffer.prototype, "parent", {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined;
return this.buffer;
},
});
Object.defineProperty(Buffer.prototype, "offset", {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined;
return this.byteOffset;
},
});
function createBuffer(length) {
if (length > K_MAX_LENGTH) {
throw new RangeError(
'The value "' + length + '" is invalid for option "size"'
);
}
// Return an augmented `Uint8Array` instance
var buf = new Uint8Array(length);
buf.__proto__ = Buffer.prototype;
return buf;
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer(arg, encodingOrOffset, length) {
// Common case.
if (typeof arg === "number") {
if (typeof encodingOrOffset === "string") {
throw new TypeError(
'The "string" argument must be of type string. Received type number'
);
}
return allocUnsafe(arg);
}
return from(arg, encodingOrOffset, length);
}
// Fix subarray() in ES2016. See: <https://github.com/feross/buffer/pull/97>
if (
typeof Symbol !== "undefined" &&
Symbol.species != null &&
Buffer[Symbol.species] === Buffer
) {
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true,
enumerable: false,
writable: false,
});
}
Buffer.poolSize = 8192; // not used by this implementation
function from(value, encodingOrOffset, length) {
if (typeof value === "string") {
return fromString(value, encodingOrOffset);
}
if (ArrayBuffer.isView(value)) {
return fromArrayLike(value);
}
if (value == null) {
throw TypeError(
"The first argument must be one of type string, Buffer, ArrayBuffer, Array, " +
"or Array-like Object. Received type " +
typeof value
);
}
if (
isInstance(value, ArrayBuffer) ||
(value && isInstance(value.buffer, ArrayBuffer))
) {
return fromArrayBuffer(value, encodingOrOffset, length);
}
if (typeof value === "number") {
throw new TypeError(
'The "value" argument must not be of type number. Received type number'
);
}
var valueOf = value.valueOf && value.valueOf();
if (valueOf != null && valueOf !== value) {
return Buffer.from(valueOf, encodingOrOffset, length);
}
var b = fromObject(value);
if (b) return b;
if (
typeof Symbol !== "undefined" &&
Symbol.toPrimitive != null &&
typeof value[Symbol.toPrimitive] === "function"
) {
return Buffer.from(
value[Symbol.toPrimitive]("string"),
encodingOrOffset,
length
);
}
throw new TypeError(
"The first argument must be one of type string, Buffer, ArrayBuffer, Array, " +
"or Array-like Object. Received type " +
typeof value
);
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer.from = function (value, encodingOrOffset, length) {
return from(value, encodingOrOffset, length);
};
// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// <https://github.com/feross/buffer/pull/148>
Buffer.prototype.__proto__ = Uint8Array.prototype;
Buffer.__proto__ = Uint8Array;
function assertSize(size) {
if (typeof size !== "number") {
throw new TypeError('"size" argument must be of type number');
} else if (size < 0) {
throw new RangeError(
'The value "' + size + '" is invalid for option "size"'
);
}
}
function alloc(size, fill, encoding) {
assertSize(size);
if (size <= 0) {
return createBuffer(size);
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpretted as a start offset.
return typeof encoding === "string"
? createBuffer(size).fill(fill, encoding)
: createBuffer(size).fill(fill);
}
return createBuffer(size);
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(size, fill, encoding);
};
function allocUnsafe(size) {
assertSize(size);
return createBuffer(size < 0 ? 0 : checked(size) | 0);
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(size);
};
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(size);
};
function fromString(string, encoding) {
if (typeof encoding !== "string" || encoding === "") {
encoding = "utf8";
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError("Unknown encoding: " + encoding);
}
var length = byteLength(string, encoding) | 0;
var buf = createBuffer(length);
var actual = buf.write(string, encoding);
if (actual !== length) {
// Writing a hex string, for example, that contains invalid characters will
// cause everything after the first invalid character to be ignored. (e.g.
// 'abxxcd' will be treated as 'ab')
buf = buf.slice(0, actual);
}
return buf;
}
function fromArrayLike(array) {
var length = array.length < 0 ? 0 : checked(array.length) | 0;
var buf = createBuffer(length);
for (var i = 0; i < length; i += 1) {
buf[i] = array[i] & 255;
}
return buf;
}
function fromArrayBuffer(array, byteOffset, length) {
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('"offset" is outside of buffer bounds');
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('"length" is outside of buffer bounds');
}
var buf;
if (byteOffset === undefined && length === undefined) {
buf = new Uint8Array(array);
} else if (length === undefined) {
buf = new Uint8Array(array, byteOffset);
} else {
buf = new Uint8Array(array, byteOffset, length);
}
// Return an augmented `Uint8Array` instance
buf.__proto__ = Buffer.prototype;
return buf;
}
function fromObject(obj) {
if (Buffer.isBuffer(obj)) {
var len = checked(obj.length) | 0;
var buf = createBuffer(len);
if (buf.length === 0) {
return buf;
}
obj.copy(buf, 0, 0, len);
return buf;
}
if (obj.length !== undefined) {
if (
typeof obj.length !== "number" ||
numberIsNaN(obj.length)
) {
return createBuffer(0);
}
return fromArrayLike(obj);
}
if (obj.type === "Buffer" && Array.isArray(obj.data)) {
return fromArrayLike(obj.data);
}
}
function checked(length) {
// Note: cannot use `length < K_MAX_LENGTH` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= K_MAX_LENGTH) {
throw new RangeError(
"Attempt to allocate Buffer larger than maximum " +
"size: 0x" +
K_MAX_LENGTH.toString(16) +
" bytes"
);
}
return length | 0;
}
function SlowBuffer(length) {
if (+length != length) {
// eslint-disable-line eqeqeq
length = 0;
}
return Buffer.alloc(+length);
}
Buffer.isBuffer = function isBuffer(b) {
return (
b != null && b._isBuffer === true && b !== Buffer.prototype
); // so Buffer.isBuffer(Buffer.prototype) will be false
};
Buffer.compare = function compare(a, b) {
if (isInstance(a, Uint8Array))
a = Buffer.from(a, a.offset, a.byteLength);
if (isInstance(b, Uint8Array))
b = Buffer.from(b, b.offset, b.byteLength);
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError(
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
);
}
if (a === b) return 0;
var x = a.length;
var y = b.length;
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i];
y = b[i];
break;
}
}
if (x < y) return -1;
if (y < x) return 1;
return 0;
};
Buffer.isEncoding = function isEncoding(encoding) {
switch (String(encoding).toLowerCase()) {
case "hex":
case "utf8":
case "utf-8":
case "ascii":
case "latin1":
case "binary":
case "base64":
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return true;
default:
return false;
}
};
Buffer.concat = function concat(list, length) {
if (!Array.isArray(list)) {
throw new TypeError(
'"list" argument must be an Array of Buffers'
);
}
if (list.length === 0) {
return Buffer.alloc(0);
}
var i;
if (length === undefined) {
length = 0;
for (i = 0; i < list.length; ++i) {
length += list[i].length;
}
}
var buffer = Buffer.allocUnsafe(length);
var pos = 0;
for (i = 0; i < list.length; ++i) {
var buf = list[i];
if (isInstance(buf, Uint8Array)) {
buf = Buffer.from(buf);
}
if (!Buffer.isBuffer(buf)) {
throw new TypeError(
'"list" argument must be an Array of Buffers'
);
}
buf.copy(buffer, pos);
pos += buf.length;
}
return buffer;
};
function byteLength(string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length;
}
if (
ArrayBuffer.isView(string) ||
isInstance(string, ArrayBuffer)
) {
return string.byteLength;
}
if (typeof string !== "string") {
throw new TypeError(
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
"Received type " +
typeof string
);
}
var len = string.length;
var mustMatch = arguments.length > 2 && arguments[2] === true;
if (!mustMatch && len === 0) return 0;
// Use a for loop to avoid recursion
var loweredCase = false;
for (;;) {
switch (encoding) {
case "ascii":
case "latin1":
case "binary":
return len;
case "utf8":
case "utf-8":
return utf8ToBytes(string).length;
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return len * 2;
case "hex":
return len >>> 1;
case "base64":
return base64ToBytes(string).length;
default:
if (loweredCase) {
return mustMatch ? -1 : utf8ToBytes(string).length; // assume utf8
}
encoding = ("" + encoding).toLowerCase();
loweredCase = true;
}
}
}
Buffer.byteLength = byteLength;
function slowToString(encoding, start, end) {
var loweredCase = false;
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0;
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return "";
}
if (end === undefined || end > this.length) {
end = this.length;
}
if (end <= 0) {
return "";
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0;
start >>>= 0;
if (end <= start) {
return "";
}
if (!encoding) encoding = "utf8";
while (true) {
switch (encoding) {
case "hex":
return hexSlice(this, start, end);
case "utf8":
case "utf-8":
return utf8Slice(this, start, end);
case "ascii":
return asciiSlice(this, start, end);
case "latin1":
case "binary":
return latin1Slice(this, start, end);
case "base64":
return base64Slice(this, start, end);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return utf16leSlice(this, start, end);
default:
if (loweredCase)
throw new TypeError("Unknown encoding: " + encoding);
encoding = (encoding + "").toLowerCase();
loweredCase = true;
}
}
}
// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: <https://github.com/feross/buffer/issues/154>
Buffer.prototype._isBuffer = true;
function swap(b, n, m) {
var i = b[n];
b[n] = b[m];
b[m] = i;
}
Buffer.prototype.swap16 = function swap16() {
var len = this.length;
if (len % 2 !== 0) {
throw new RangeError(
"Buffer size must be a multiple of 16-bits"
);
}
for (var i = 0; i < len; i += 2) {
swap(this, i, i + 1);
}
return this;
};
Buffer.prototype.swap32 = function swap32() {
var len = this.length;
if (len % 4 !== 0) {
throw new RangeError(
"Buffer size must be a multiple of 32-bits"
);
}
for (var i = 0; i < len; i += 4) {
swap(this, i, i + 3);
swap(this, i + 1, i + 2);
}
return this;
};
Buffer.prototype.swap64 = function swap64() {
var len = this.length;
if (len % 8 !== 0) {
throw new RangeError(
"Buffer size must be a multiple of 64-bits"
);
}
for (var i = 0; i < len; i += 8) {
swap(this, i, i + 7);
swap(this, i + 1, i + 6);
swap(this, i + 2, i + 5);
swap(this, i + 3, i + 4);
}
return this;
};
Buffer.prototype.toString = function toString() {
var length = this.length;
if (length === 0) return "";
if (arguments.length === 0) return utf8Slice(this, 0, length);
return slowToString.apply(this, arguments);
};
Buffer.prototype.toLocaleString = Buffer.prototype.toString;
Buffer.prototype.equals = function equals(b) {
if (!Buffer.isBuffer(b))
throw new TypeError("Argument must be a Buffer");
if (this === b) return true;
return Buffer.compare(this, b) === 0;
};
Buffer.prototype.inspect = function inspect() {
var str = "";
var max = exports.INSPECT_MAX_BYTES;
str = this.toString("hex", 0, max)
.replace(/(.{2})/g, "$1 ")
.trim();
if (this.length > max) str += " ... ";
return "<Buffer " + str + ">";
};
Buffer.prototype.compare = function compare(
target,
start,
end,
thisStart,
thisEnd
) {
if (isInstance(target, Uint8Array)) {
target = Buffer.from(
target,
target.offset,
target.byteLength
);
}
if (!Buffer.isBuffer(target)) {
throw new TypeError(
'The "target" argument must be one of type Buffer or Uint8Array. ' +
"Received type " +
typeof target
);
}
if (start === undefined) {
start = 0;
}
if (end === undefined) {
end = target ? target.length : 0;
}
if (thisStart === undefined) {
thisStart = 0;
}
if (thisEnd === undefined) {
thisEnd = this.length;
}
if (
start < 0 ||
end > target.length ||
thisStart < 0 ||
thisEnd > this.length
) {
throw new RangeError("out of range index");
}
if (thisStart >= thisEnd && start >= end) {
return 0;
}
if (thisStart >= thisEnd) {
return -1;
}
if (start >= end) {
return 1;
}
start >>>= 0;
end >>>= 0;
thisStart >>>= 0;
thisEnd >>>= 0;
if (this === target) return 0;
var x = thisEnd - thisStart;
var y = end - start;
var len = Math.min(x, y);
var thisCopy = this.slice(thisStart, thisEnd);
var targetCopy = target.slice(start, end);
for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i];
y = targetCopy[i];
break;
}
}
if (x < y) return -1;
if (y < x) return 1;
return 0;
};
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf(
buffer,
val,
byteOffset,
encoding,
dir
) {
// Empty buffer means no match
if (buffer.length === 0) return -1;
// Normalize byteOffset
if (typeof byteOffset === "string") {
encoding = byteOffset;
byteOffset = 0;
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff;
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000;
}
byteOffset = +byteOffset; // Coerce to Number.
if (numberIsNaN(byteOffset)) {
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
byteOffset = dir ? 0 : buffer.length - 1;
}
// Normalize byteOffset: negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = buffer.length + byteOffset;
if (byteOffset >= buffer.length) {
if (dir) return -1;
else byteOffset = buffer.length - 1;
} else if (byteOffset < 0) {
if (dir) byteOffset = 0;
else return -1;
}
// Normalize val
if (typeof val === "string") {
val = Buffer.from(val, encoding);
}
// Finally, search either indexOf (if dir is true) or lastIndexOf
if (Buffer.isBuffer(val)) {
// Special case: looking for empty string/buffer always fails
if (val.length === 0) {
return -1;
}
return arrayIndexOf(buffer, val, byteOffset, encoding, dir);
} else if (typeof val === "number") {
val = val & 0xff; // Search for a byte value [0-255]
if (typeof Uint8Array.prototype.indexOf === "function") {
if (dir) {
return Uint8Array.prototype.indexOf.call(
buffer,
val,
byteOffset
);
} else {
return Uint8Array.prototype.lastIndexOf.call(
buffer,
val,
byteOffset
);
}
}
return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);
}
throw new TypeError("val must be string, number or Buffer");
}
function arrayIndexOf(arr, val, byteOffset, encoding, dir) {
var indexSize = 1;
var arrLength = arr.length;
var valLength = val.length;
if (encoding !== undefined) {
encoding = String(encoding).toLowerCase();
if (
encoding === "ucs2" ||
encoding === "ucs-2" ||
encoding === "utf16le" ||
encoding === "utf-16le"
) {
if (arr.length < 2 || val.length < 2) {
return -1;
}
indexSize = 2;
arrLength /= 2;
valLength /= 2;
byteOffset /= 2;
}
}
function read(buf, i) {
if (indexSize === 1) {
return buf[i];
} else {
return buf.readUInt16BE(i * indexSize);
}
}
var i;
if (dir) {
var foundIndex = -1;
for (i = byteOffset; i < arrLength; i++) {
if (
read(arr, i) ===
read(val, foundIndex === -1 ? 0 : i - foundIndex)
) {
if (foundIndex === -1) foundIndex = i;
if (i - foundIndex + 1 === valLength)
return foundIndex * indexSize;
} else {
if (foundIndex !== -1) i -= i - foundIndex;
foundIndex = -1;
}
}
} else {
if (byteOffset + valLength > arrLength)
byteOffset = arrLength - valLength;
for (i = byteOffset; i >= 0; i--) {
var found = true;
for (var j = 0; j < valLength; j++) {
if (read(arr, i + j) !== read(val, j)) {
found = false;
break;
}
}
if (found) return i;
}
}
return -1;
}
Buffer.prototype.includes = function includes(
val,
byteOffset,
encoding
) {
return this.indexOf(val, byteOffset, encoding) !== -1;
};
Buffer.prototype.indexOf = function indexOf(
val,
byteOffset,
encoding
) {
return bidirectionalIndexOf(
this,
val,
byteOffset,
encoding,
true
);
};
Buffer.prototype.lastIndexOf = function lastIndexOf(
val,
byteOffset,
encoding
) {
return bidirectionalIndexOf(
this,
val,
byteOffset,
encoding,
false
);
};
function hexWrite(buf, string, offset, length) {
offset = Number(offset) || 0;
var remaining = buf.length - offset;
if (!length) {
length = remaining;
} else {
length = Number(length);
if (length > remaining) {
length = remaining;
}
}
var strLen = string.length;
if (length > strLen / 2) {
length = strLen / 2;
}
for (var i = 0; i < length; ++i) {
var parsed = parseInt(string.substr(i * 2, 2), 16);
if (numberIsNaN(parsed)) return i;
buf[offset + i] = parsed;
}
return i;
}
function utf8Write(buf, string, offset, length) {
return blitBuffer(
utf8ToBytes(string, buf.length - offset),
buf,
offset,
length
);
}
function asciiWrite(buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length);
}
function latin1Write(buf, string, offset, length) {
return asciiWrite(buf, string, offset, length);
}
function base64Write(buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length);
}
function ucs2Write(buf, string, offset, length) {
return blitBuffer(
utf16leToBytes(string, buf.length - offset),
buf,
offset,
length
);
}
Buffer.prototype.write = function write(
string,
offset,
length,
encoding
) {
// Buffer#write(string)
if (offset === undefined) {
encoding = "utf8";
length = this.length;
offset = 0;
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === "string") {
encoding = offset;
length = this.length;
offset = 0;
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset >>> 0;
if (isFinite(length)) {
length = length >>> 0;
if (encoding === undefined) encoding = "utf8";
} else {
encoding = length;
length = undefined;
}
} else {
throw new Error(
"Buffer.write(string, encoding, offset[, length]) is no longer supported"
);
}
var remaining = this.length - offset;
if (length === undefined || length > remaining)
length = remaining;
if (
(string.length > 0 && (length < 0 || offset < 0)) ||
offset > this.length
) {
throw new RangeError(
"Attempt to write outside buffer bounds"
);
}
if (!encoding) encoding = "utf8";
var loweredCase = false;
for (;;) {
switch (encoding) {
case "hex":
return hexWrite(this, string, offset, length);
case "utf8":
case "utf-8":
return utf8Write(this, string, offset, length);
case "ascii":
return asciiWrite(this, string, offset, length);
case "latin1":
case "binary":
return latin1Write(this, string, offset, length);
case "base64":
// Warning: maxLength not taken into account in base64Write
return base64Write(this, string, offset, length);
case "ucs2":
case "ucs-2":
case "utf16le":
case "utf-16le":
return ucs2Write(this, string, offset, length);
default:
if (loweredCase)
throw new TypeError("Unknown encoding: " + encoding);
encoding = ("" + encoding).toLowerCase();
loweredCase = true;
}
}
};
Buffer.prototype.toJSON = function toJSON() {
return {
type: "Buffer",
data: Array.prototype.slice.call(this._arr || this, 0),
};
};
function base64Slice(buf, start, end) {
if (start === 0 && end === buf.length) {
return base64.fromByteArray(buf);
} else {
return base64.fromByteArray(buf.slice(start, end));
}
}
function utf8Slice(buf, start, end) {
end = Math.min(buf.length, end);
var res = [];
var i = start;
while (i < end) {
var firstByte = buf[i];
var codePoint = null;
var bytesPerSequence =
firstByte > 0xef
? 4
: firstByte > 0xdf
? 3
: firstByte > 0xbf
? 2
: 1;
if (i + bytesPerSequence <= end) {
var secondByte, thirdByte, fourthByte, tempCodePoint;
switch (bytesPerSequence) {
case 1:
if (firstByte < 0x80) {
codePoint = firstByte;
}
break;
case 2:
secondByte = buf[i + 1];
if ((secondByte & 0xc0) === 0x80) {
tempCodePoint =
((firstByte & 0x1f) << 0x6) | (secondByte & 0x3f);
if (tempCodePoint > 0x7f) {
codePoint = tempCodePoint;
}
}
break;
case 3:
secondByte = buf[i + 1];
thirdByte = buf[i + 2];
if (
(secondByte & 0xc0) === 0x80 &&
(thirdByte & 0xc0) === 0x80
) {
tempCodePoint =
((firstByte & 0xf) << 0xc) |
((secondByte & 0x3f) << 0x6) |
(thirdByte & 0x3f);
if (
tempCodePoint > 0x7ff &&
(tempCodePoint < 0xd800 || tempCodePoint > 0xdfff)
) {
codePoint = tempCodePoint;
}
}
break;
case 4:
secondByte = buf[i + 1];
thirdByte = buf[i + 2];
fourthByte = buf[i + 3];
if (
(secondByte & 0xc0) === 0x80 &&
(thirdByte & 0xc0) === 0x80 &&
(fourthByte & 0xc0) === 0x80
) {
tempCodePoint =
((firstByte & 0xf) << 0x12) |
((secondByte & 0x3f) << 0xc) |
((thirdByte & 0x3f) << 0x6) |
(fourthByte & 0x3f);
if (
tempCodePoint > 0xffff &&
tempCodePoint < 0x110000
) {
codePoint = tempCodePoint;
}
}
}
}
if (codePoint === null) {
// we did not generate a valid codePoint so insert a
// replacement char (U+FFFD) and advance only 1 byte
codePoint = 0xfffd;
bytesPerSequence = 1;
} else if (codePoint > 0xffff) {
// encode to utf16 (surrogate pair dance)
codePoint -= 0x10000;
res.push(((codePoint >>> 10) & 0x3ff) | 0xd800);
codePoint = 0xdc00 | (codePoint & 0x3ff);
}
res.push(codePoint);
i += bytesPerSequence;
}
return decodeCodePointsArray(res);
}
// Based on <http://stackoverflow.com/a/22747272/680742>, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000;
function decodeCodePointsArray(codePoints) {
var len = codePoints.length;
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints); // avoid extra slice()
}
// Decode in chunks to avoid "call stack size exceeded".
var res = "";
var i = 0;
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, (i += MAX_ARGUMENTS_LENGTH))
);
}
return res;
}
function asciiSlice(buf, start, end) {
var ret = "";
end = Math.min(buf.length, end);
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i] & 0x7f);
}
return ret;
}
function latin1Slice(buf, start, end) {
var ret = "";
end = Math.min(buf.length, end);
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i]);
}
return ret;
}
function hexSlice(buf, start, end) {
var len = buf.length;
if (!start || start < 0) start = 0;
if (!end || end < 0 || end > len) end = len;
var out = "";
for (var i = start; i < end; ++i) {
out += toHex(buf[i]);
}
return out;
}
function utf16leSlice(buf, start, end) {
var bytes = buf.slice(start, end);
var res = "";
for (var i = 0; i < bytes.length; i += 2) {
res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
}
return res;
}
Buffer.prototype.slice = function slice(start, end) {
var len = this.length;
start = ~~start;
end = end === undefined ? len : ~~end;
if (start < 0) {
start += len;
if (start < 0) start = 0;
} else if (start > len) {
start = len;
}
if (end < 0) {
end += len;
if (end < 0) end = 0;
} else if (end > len) {
end = len;
}
if (end < start) end = start;
var newBuf = this.subarray(start, end);
// Return an augmented `Uint8Array` instance
newBuf.__proto__ = Buffer.prototype;
return newBuf;
};
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset(offset, ext, length) {
if (offset % 1 !== 0 || offset < 0)
throw new RangeError("offset is not uint");
if (offset + ext > length)
throw new RangeError("Trying to access beyond buffer length");
}
Buffer.prototype.readUIntLE = function readUIntLE(
offset,
byteLength,
noAssert
) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
if (!noAssert) checkOffset(offset, byteLength, this.length);
var val = this[offset];
var mul = 1;
var i = 0;
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul;
}
return val;
};
Buffer.prototype.readUIntBE = function readUIntBE(
offset,
byteLength,
noAssert
) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
if (!noAssert) {
checkOffset(offset, byteLength, this.length);
}
var val = this[offset + --byteLength];
var mul = 1;
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul;
}
return val;
};
Buffer.prototype.readUInt8 = function readUInt8(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 1, this.length);
return this[offset];
};
Buffer.prototype.readUInt16LE = function readUInt16LE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 2, this.length);
return this[offset] | (this[offset + 1] << 8);
};
Buffer.prototype.readUInt16BE = function readUInt16BE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 2, this.length);
return (this[offset] << 8) | this[offset + 1];
};
Buffer.prototype.readUInt32LE = function readUInt32LE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 4, this.length);
return (
(this[offset] |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
this[offset + 3] * 0x1000000
);
};
Buffer.prototype.readUInt32BE = function readUInt32BE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 4, this.length);
return (
this[offset] * 0x1000000 +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
);
};
Buffer.prototype.readIntLE = function readIntLE(
offset,
byteLength,
noAssert
) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
if (!noAssert) checkOffset(offset, byteLength, this.length);
var val = this[offset];
var mul = 1;
var i = 0;
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul;
}
mul *= 0x80;
if (val >= mul) val -= Math.pow(2, 8 * byteLength);
return val;
};
Buffer.prototype.readIntBE = function readIntBE(
offset,
byteLength,
noAssert
) {
offset = offset >>> 0;
byteLength = byteLength >>> 0;
if (!noAssert) checkOffset(offset, byteLength, this.length);
var i = byteLength;
var mul = 1;
var val = this[offset + --i];
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul;
}
mul *= 0x80;
if (val >= mul) val -= Math.pow(2, 8 * byteLength);
return val;
};
Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 1, this.length);
if (!(this[offset] & 0x80)) return this[offset];
return (0xff - this[offset] + 1) * -1;
};
Buffer.prototype.readInt16LE = function readInt16LE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 2, this.length);
var val = this[offset] | (this[offset + 1] << 8);
return val & 0x8000 ? val | 0xffff0000 : val;
};
Buffer.prototype.readInt16BE = function readInt16BE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 2, this.length);
var val = this[offset + 1] | (this[offset] << 8);
return val & 0x8000 ? val | 0xffff0000 : val;
};
Buffer.prototype.readInt32LE = function readInt32LE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 4, this.length);
return (
this[offset] |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
);
};
Buffer.prototype.readInt32BE = function readInt32BE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 4, this.length);
return (
(this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3]
);
};
Buffer.prototype.readFloatLE = function readFloatLE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 4, this.length);
return ieee754.read(this, offset, true, 23, 4);
};
Buffer.prototype.readFloatBE = function readFloatBE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 4, this.length);
return ieee754.read(this, offset, false, 23, 4);
};
Buffer.prototype.readDoubleLE = function readDoubleLE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 8, this.length);
return ieee754.read(this, offset, true, 52, 8);
};
Buffer.prototype.readDoubleBE = function readDoubleBE(
offset,
noAssert
) {
offset = offset >>> 0;
if (!noAssert) checkOffset(offset, 8, this.length);
return ieee754.read(this, offset, false, 52, 8);
};
function checkInt(buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf))
throw new TypeError(
'"buffer" argument must be a Buffer instance'
);
if (value > max || value < min)
throw new RangeError('"value" argument is out of bounds');
if (offset + ext > buf.length)
throw new RangeError("Index out of range");
}
Buffer.prototype.writeUIntLE = function writeUIntLE(
value,
offset,
byteLength,
noAssert
) {
value = +value;
offset = offset >>> 0;
byteLength = byteLength >>> 0;
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1;
checkInt(this, value, offset, byteLength, maxBytes, 0);
}
var mul = 1;
var i = 0;
this[offset] = value & 0xff;
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xff;
}
return offset + byteLength;
};
Buffer.prototype.writeUIntBE = function writeUIntBE(
value,
offset,
byteLength,
noAssert
) {
value = +value;
offset = offset >>> 0;
byteLength = byteLength >>> 0;
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1;
checkInt(this, value, offset, byteLength, maxBytes, 0);
}
var i = byteLength - 1;
var mul = 1;
this[offset + i] = value & 0xff;
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xff;
}
return offset + byteLength;
};
Buffer.prototype.writeUInt8 = function writeUInt8(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0);
this[offset] = value & 0xff;
return offset + 1;
};
Buffer.prototype.writeUInt16LE = function writeUInt16LE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
this[offset] = value & 0xff;
this[offset + 1] = value >>> 8;
return offset + 2;
};
Buffer.prototype.writeUInt16BE = function writeUInt16BE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);
this[offset] = value >>> 8;
this[offset + 1] = value & 0xff;
return offset + 2;
};
Buffer.prototype.writeUInt32LE = function writeUInt32LE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
this[offset + 3] = value >>> 24;
this[offset + 2] = value >>> 16;
this[offset + 1] = value >>> 8;
this[offset] = value & 0xff;
return offset + 4;
};
Buffer.prototype.writeUInt32BE = function writeUInt32BE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);
this[offset] = value >>> 24;
this[offset + 1] = value >>> 16;
this[offset + 2] = value >>> 8;
this[offset + 3] = value & 0xff;
return offset + 4;
};
Buffer.prototype.writeIntLE = function writeIntLE(
value,
offset,
byteLength,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1);
checkInt(this, value, offset, byteLength, limit - 1, -limit);
}
var i = 0;
var mul = 1;
var sub = 0;
this[offset] = value & 0xff;
while (++i < byteLength && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
sub = 1;
}
this[offset + i] = (((value / mul) >> 0) - sub) & 0xff;
}
return offset + byteLength;
};
Buffer.prototype.writeIntBE = function writeIntBE(
value,
offset,
byteLength,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1);
checkInt(this, value, offset, byteLength, limit - 1, -limit);
}
var i = byteLength - 1;
var mul = 1;
var sub = 0;
this[offset + i] = value & 0xff;
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1;
}
this[offset + i] = (((value / mul) >> 0) - sub) & 0xff;
}
return offset + byteLength;
};
Buffer.prototype.writeInt8 = function writeInt8(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80);
if (value < 0) value = 0xff + value + 1;
this[offset] = value & 0xff;
return offset + 1;
};
Buffer.prototype.writeInt16LE = function writeInt16LE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert)
checkInt(this, value, offset, 2, 0x7fff, -0x8000);
this[offset] = value & 0xff;
this[offset + 1] = value >>> 8;
return offset + 2;
};
Buffer.prototype.writeInt16BE = function writeInt16BE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert)
checkInt(this, value, offset, 2, 0x7fff, -0x8000);
this[offset] = value >>> 8;
this[offset + 1] = value & 0xff;
return offset + 2;
};
Buffer.prototype.writeInt32LE = function writeInt32LE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert)
checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
this[offset] = value & 0xff;
this[offset + 1] = value >>> 8;
this[offset + 2] = value >>> 16;
this[offset + 3] = value >>> 24;
return offset + 4;
};
Buffer.prototype.writeInt32BE = function writeInt32BE(
value,
offset,
noAssert
) {
value = +value;
offset = offset >>> 0;
if (!noAssert)
checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);
if (value < 0) value = 0xffffffff + value + 1;
this[offset] = value >>> 24;
this[offset + 1] = value >>> 16;
this[offset + 2] = value >>> 8;
this[offset + 3] = value & 0xff;
return offset + 4;
};
function checkIEEE754(buf, value, offset, ext, max, min) {
if (offset + ext > buf.length)
throw new RangeError("Index out of range");
if (offset < 0) throw new RangeError("Index out of range");
}
function writeFloat(buf, value, offset, littleEndian, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkIEEE754(
buf,
value,
offset,
4,
3.4028234663852886e38,
-3.4028234663852886e38
);
}
ieee754.write(buf, value, offset, littleEndian, 23, 4);
return offset + 4;
}
Buffer.prototype.writeFloatLE = function writeFloatLE(
value,
offset,
noAssert
) {
return writeFloat(this, value, offset, true, noAssert);
};
Buffer.prototype.writeFloatBE = function writeFloatBE(
value,
offset,
noAssert
) {
return writeFloat(this, value, offset, false, noAssert);
};
function writeDouble(buf, value, offset, littleEndian, noAssert) {
value = +value;
offset = offset >>> 0;
if (!noAssert) {
checkIEEE754(
buf,
value,
offset,
8,
1.7976931348623157e308,
-1.7976931348623157e308
);
}
ieee754.write(buf, value, offset, littleEndian, 52, 8);
return offset + 8;
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE(
value,
offset,
noAssert
) {
return writeDouble(this, value, offset, true, noAssert);
};
Buffer.prototype.writeDoubleBE = function writeDoubleBE(
value,
offset,
noAssert
) {
return writeDouble(this, value, offset, false, noAssert);
};
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy(
target,
targetStart,
start,
end
) {
if (!Buffer.isBuffer(target))
throw new TypeError("argument should be a Buffer");
if (!start) start = 0;
if (!end && end !== 0) end = this.length;
if (targetStart >= target.length) targetStart = target.length;
if (!targetStart) targetStart = 0;
if (end > 0 && end < start) end = start;
// Copy 0 bytes; we're done
if (end === start) return 0;
if (target.length === 0 || this.length === 0) return 0;
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError("targetStart out of bounds");
}
if (start < 0 || start >= this.length)
throw new RangeError("Index out of range");
if (end < 0) throw new RangeError("sourceEnd out of bounds");
// Are we oob?
if (end > this.length) end = this.length;
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start;
}
var len = end - start;
if (
this === target &&
typeof Uint8Array.prototype.copyWithin === "function"
) {
// Use built-in when available, missing from IE11
this.copyWithin(targetStart, start, end);
} else if (
this === target &&
start < targetStart &&
targetStart < end
) {
// descending copy from end
for (var i = len - 1; i >= 0; --i) {
target[i + targetStart] = this[i + start];
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, end),
targetStart
);
}
return len;
};
// Usage:
// buffer.fill(number[, offset[, end]])
// buffer.fill(buffer[, offset[, end]])
// buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill(val, start, end, encoding) {
// Handle string cases:
if (typeof val === "string") {
if (typeof start === "string") {
encoding = start;
start = 0;
end = this.length;
} else if (typeof end === "string") {
encoding = end;
end = this.length;
}
if (encoding !== undefined && typeof encoding !== "string") {
throw new TypeError("encoding must be a string");
}
if (
typeof encoding === "string" &&
!Buffer.isEncoding(encoding)
) {
throw new TypeError("Unknown encoding: " + encoding);
}
if (val.length === 1) {
var code = val.charCodeAt(0);
if (
(encoding === "utf8" && code < 128) ||
encoding === "latin1"
) {
// Fast path: If `val` fits into a single byte, use that numeric value.
val = code;
}
}
} else if (typeof val === "number") {
val = val & 255;
}
// Invalid ranges are not set to a default, so can range check early.
if (start < 0 || this.length < start || this.length < end) {
throw new RangeError("Out of range index");
}
if (end <= start) {
return this;
}
start = start >>> 0;
end = end === undefined ? this.length : end >>> 0;
if (!val) val = 0;
var i;
if (typeof val === "number") {
for (i = start; i < end; ++i) {
this[i] = val;
}
} else {
var bytes = Buffer.isBuffer(val)
? val
: Buffer.from(val, encoding);
var len = bytes.length;
if (len === 0) {
throw new TypeError(
'The value "' + val + '" is invalid for argument "value"'
);
}
for (i = 0; i < end - start; ++i) {
this[i + start] = bytes[i % len];
}
}
return this;
};
// HELPER FUNCTIONS
// ================
var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g;
function base64clean(str) {
// Node takes equal signs as end of the Base64 encoding
str = str.split("=")[0];
// Node strips out invalid characters like \\n and \\t from the string, base64-js does not
str = str.trim().replace(INVALID_BASE64_RE, "");
// Node converts strings with length < 2 to ''
if (str.length < 2) return "";
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + "=";
}
return str;
}
function toHex(n) {
if (n < 16) return "0" + n.toString(16);
return n.toString(16);
}
function utf8ToBytes(string, units) {
units = units || Infinity;
var codePoint;
var length = string.length;
var leadSurrogate = null;
var bytes = [];
for (var i = 0; i < length; ++i) {
codePoint = string.charCodeAt(i);
// is surrogate component
if (codePoint > 0xd7ff && codePoint < 0xe000) {
// last char was a lead
if (!leadSurrogate) {
// no lead yet
if (codePoint > 0xdbff) {
// unexpected trail
if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
continue;
} else if (i + 1 === length) {
// unpaired lead
if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
continue;
}
// valid lead
leadSurrogate = codePoint;
continue;
}
// 2 leads in a row
if (codePoint < 0xdc00) {
if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
leadSurrogate = codePoint;
continue;
}
// valid surrogate pair
codePoint =
(((leadSurrogate - 0xd800) << 10) |
(codePoint - 0xdc00)) +
0x10000;
} else if (leadSurrogate) {
// valid bmp char, but last char was a lead
if ((units -= 3) > -1) bytes.push(0xef, 0xbf, 0xbd);
}
leadSurrogate = null;
// encode utf8
if (codePoint < 0x80) {
if ((units -= 1) < 0) break;
bytes.push(codePoint);
} else if (codePoint < 0x800) {
if ((units -= 2) < 0) break;
bytes.push(
(codePoint >> 0x6) | 0xc0,
(codePoint & 0x3f) | 0x80
);
} else if (codePoint < 0x10000) {
if ((units -= 3) < 0) break;
bytes.push(
(codePoint >> 0xc) | 0xe0,
((codePoint >> 0x6) & 0x3f) | 0x80,
(codePoint & 0x3f) | 0x80
);
} else if (codePoint < 0x110000) {
if ((units -= 4) < 0) break;
bytes.push(
(codePoint >> 0x12) | 0xf0,
((codePoint >> 0xc) & 0x3f) | 0x80,
((codePoint >> 0x6) & 0x3f) | 0x80,
(codePoint & 0x3f) | 0x80
);
} else {
throw new Error("Invalid code point");
}
}
return bytes;
}
function asciiToBytes(str) {
var byteArray = [];
for (var i = 0; i < str.length; ++i) {
// Node's code seems to be doing this and not & 0x7F..
byteArray.push(str.charCodeAt(i) & 0xff);
}
return byteArray;
}
function utf16leToBytes(str, units) {
var c, hi, lo;
var byteArray = [];
for (var i = 0; i < str.length; ++i) {
if ((units -= 2) < 0) break;
c = str.charCodeAt(i);
hi = c >> 8;
lo = c % 256;
byteArray.push(lo);
byteArray.push(hi);
}
return byteArray;
}
function base64ToBytes(str) {
return base64.toByteArray(base64clean(str));
}
function blitBuffer(src, dst, offset, length) {
for (var i = 0; i < length; ++i) {
if (i + offset >= dst.length || i >= src.length) break;
dst[i + offset] = src[i];
}
return i;
}
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: <https://github.com/feross/buffer/issues/166>
function isInstance(obj, type) {
return (
obj instanceof type ||
(obj != null &&
obj.constructor != null &&
obj.constructor.name != null &&
obj.constructor.name === type.name)
);
}
function numberIsNaN(obj) {
// For IE11 support
return obj !== obj; // eslint-disable-line no-self-compare
}
}.call(this));
}.call(this, require("buffer").Buffer));
},
{ "base64-js": 1, buffer: 2, ieee754: 3 },
],
3: [
function (require, module, exports) {
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m;
var eLen = nBytes * 8 - mLen - 1;
var eMax = (1 << eLen) - 1;
var eBias = eMax >> 1;
var nBits = -7;
var i = isLE ? nBytes - 1 : 0;
var d = isLE ? -1 : 1;
var s = buffer[offset + i];
i += d;
e = s & ((1 << -nBits) - 1);
s >>= -nBits;
nBits += eLen;
for (
;
nBits > 0;
e = e * 256 + buffer[offset + i], i += d, nBits -= 8
) {}
m = e & ((1 << -nBits) - 1);
e >>= -nBits;
nBits += mLen;
for (
;
nBits > 0;
m = m * 256 + buffer[offset + i], i += d, nBits -= 8
) {}
if (e === 0) {
e = 1 - eBias;
} else if (e === eMax) {
return m ? NaN : (s ? -1 : 1) * Infinity;
} else {
m = m + Math.pow(2, mLen);
e = e - eBias;
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
};
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c;
var eLen = nBytes * 8 - mLen - 1;
var eMax = (1 << eLen) - 1;
var eBias = eMax >> 1;
var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;
var i = isLE ? 0 : nBytes - 1;
var d = isLE ? 1 : -1;
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
value = Math.abs(value);
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0;
e = eMax;
} else {
e = Math.floor(Math.log(value) / Math.LN2);
if (value * (c = Math.pow(2, -e)) < 1) {
e--;
c *= 2;
}
if (e + eBias >= 1) {
value += rt / c;
} else {
value += rt * Math.pow(2, 1 - eBias);
}
if (value * c >= 2) {
e++;
c /= 2;
}
if (e + eBias >= eMax) {
m = 0;
e = eMax;
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen);
e = e + eBias;
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
e = 0;
}
}
for (
;
mLen >= 8;
buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8
) {}
e = (e << mLen) | m;
eLen += mLen;
for (
;
eLen > 0;
buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8
) {}
buffer[offset + i - d] |= s * 128;
};
},
{},
],
4: [
function (require, module, exports) {
(function (Buffer) {
(function () {
const readVox = require("vox-reader");
getVoxData();
async function getVoxData(modelURL) {
//const url = "<https://dl.dropbox.com/s/x9uvcdm0sot163b/Lil%20Baby%20Green%20MV.vox>";
const params = new Proxy(
new URLSearchParams(window.location.search),
{
get: (searchParams, prop) => searchParams.get(prop),
}
);
const url = params.model;
if (url === undefined) {
console.log("URL doesn't contain vox model file");
return;
}
const result = await fetch(url);
const arrayBuffer = await result.arrayBuffer();
const buffer = arrayBufferToBuffer(arrayBuffer);
const voxData = await readVox(buffer);
const event = new CustomEvent("onVoxModelLoaded", {
detail: JSON.stringify(voxData),
});
//console.log(JSON.stringify(voxData));
document.dispatchEvent(event);
return voxData;
}
function getParameterByName(name, url = window.location.href) {
name = name.replace(/[\\[\\]]/g, "\\\\$&");
var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
results = regex.exec(url);
if (!results) return null;
if (!results[2]) return "";
return decodeURIComponent(results[2].replace(/\\+/g, " "));
}
let isArrayBufferSupported =
new Buffer(new Uint8Array([1]).buffer)[0] === 1;
let arrayBufferToBuffer = isArrayBufferSupported
? arrayBufferToBufferAsArgument
: arrayBufferToBufferCycle;
function arrayBufferToBufferAsArgument(ab) {
return new Buffer(ab);
}
function arrayBufferToBufferCycle(ab) {
let buffer = new Buffer(ab.byteLength);
let view = new Uint8Array(ab);
for (let i = 0; i < buffer.length; ++i) {
buffer[i] = view[i];
}
return buffer;
}
}.call(this));
}.call(this, require("buffer").Buffer));
},
{ buffer: 2, "vox-reader": 5 },
],
5: [
function (require, module, exports) {
"use strict";
module.exports = require("./src/readVox");
},
{ "./src/readVox": 9 },
],
6: [
function (require, module, exports) {
"use strict";
const read4ByteInteger = require("../shared/read4ByteInteger/read4ByteInteger");
const read4ByteFloat = require("../shared/read4ByteFloat/read4ByteFloat");
const groupArray = require("../shared/groupArray/groupArray");
const BLOCK_SIZE = 4;
const parseVoxChunk = (id, contentData) => {
const tokens = groupArray(contentData, BLOCK_SIZE);
if (id === "PACK")
return {
numModels: read4ByteInteger(tokens[0]),
};
if (id === "SIZE")
return {
x: read4ByteInteger(tokens[0]),
y: read4ByteInteger(tokens[1]),
z: read4ByteInteger(tokens[2]),
};
if (id === "XYZI")
return {
numVoxels: read4ByteInteger(tokens[0]),
values: tokens
.slice(1)
.map((c) => ({ x: c[0], y: c[1], z: c[2], i: c[3] })),
};
if (id === "RGBA")
return {
values: tokens.map((c) => ({
r: c[0],
g: c[1],
b: c[2],
a: c[3],
})),
};
if (id === "MATT")
return {
id: read4ByteInteger(tokens[0]),
materialType: read4ByteInteger(tokens[1]),
materialWeight: read4ByteFloat(tokens[2]),
propertyBits: read4ByteInteger(tokens[3]),
normalizedPropertyValues: tokens
.slice(4)
.map((token) => read4ByteFloat(token)),
};
return {};
};
module.exports = parseVoxChunk;
},
{
"../shared/groupArray/groupArray": 11,
"../shared/read4ByteFloat/read4ByteFloat": 12,
"../shared/read4ByteInteger/read4ByteInteger": 13,
},
],
7: [
function (require, module, exports) {
"use strict";
const read4ByteString = require("../../shared/read4ByteString/read4ByteString");
const read4ByteInteger = require("../../shared/read4ByteInteger/read4ByteInteger");
const groupArray = require("../../shared/groupArray/groupArray");
const BLOCK_SIZE = 4;
const HEADER_SIZE = 12;
const readChunks = (data, parser) => {
let chunks = [];
while (data.length != 0) {
const headerData = data.slice(0, HEADER_SIZE);
const header = groupArray(headerData, BLOCK_SIZE);
const chunkId = read4ByteString(header[0]);
const contentBytes = read4ByteInteger(header[1]);
const childrenBytes = read4ByteInteger(header[2]);
chunks.push(
createChunk(data, chunkId, contentBytes, childrenBytes, parser)
);
data = data.slice(HEADER_SIZE + contentBytes);
}
return chunks;
};
const createChunk = (
data,
id,
contentBytes,
childrenBytes,
parser
) => {
const contentDataEndIndex = HEADER_SIZE + contentBytes;
const childrenDataEndIndex = contentDataEndIndex + childrenBytes;
const contentData = data.slice(HEADER_SIZE, contentDataEndIndex);
const childrenData = data.slice(
contentDataEndIndex,
childrenDataEndIndex
);
return {
id: id,
data: parser(id, contentData),
children: readChunks(childrenData, parser),
};
};
module.exports = readChunks;
},
{
"../../shared/groupArray/groupArray": 11,
"../../shared/read4ByteInteger/read4ByteInteger": 13,
"../../shared/read4ByteString/read4ByteString": 14,
},
],
8: [
function (require, module, exports) {
"use strict";
const readChunks = require("./readChunks/readChunks");
const readRiffFile = (buffer, offset, parser) => {
const dataWithoutOffset = buffer.slice(offset);
const chunks = readChunks(dataWithoutOffset, parser);
return chunks[0];
};
module.exports = readRiffFile;
},
{ "./readChunks/readChunks": 7 },
],
9: [
function (require, module, exports) {
"use strict";
const read4ByteString = require("./shared/read4ByteString/read4ByteString");
const read4ByteInteger = require("./shared/read4ByteInteger/read4ByteInteger");
const groupArray = require("./shared/groupArray/groupArray");
const readRiffFile = require("./readRiffFile/readRiffFile");
const parseVoxChunk = require("./parseVoxChunk/parseVoxChunk");
const removeRiffStructure = require("./removeRiffStructure/removeRiffStructure");
const readVox = (buffer) => {
const BLOCK_SIZE = 4;
const OFFSET = 8; // VOX <space> 150 0 0 0
const data = [...buffer]; // convert buffer to array
const tokens = groupArray(data, BLOCK_SIZE);
const id = read4ByteString(tokens[0]);
const version = read4ByteInteger(tokens[1]);
if (id != "VOX ")
throw Error(`Id of .vox-file should be "VOX ", found "${id}".`);
if (version != 150)
throw Error(
`Version of .vox-file structure should be 150, found "${version}".`
);
const riffData = readRiffFile(data, OFFSET, parseVoxChunk);
return removeRiffStructure(riffData);
};
module.exports = readVox;
},
{
"./parseVoxChunk/parseVoxChunk": 6,
"./readRiffFile/readRiffFile": 8,
"./removeRiffStructure/removeRiffStructure": 10,
"./shared/groupArray/groupArray": 11,
"./shared/read4ByteInteger/read4ByteInteger": 13,
"./shared/read4ByteString/read4ByteString": 14,
},
],
10: [
function (require, module, exports) {
"use strict";
const removeRiffStructure = (riffObject) => {
let result = {};
riffObject.children.forEach((child) => {
result[child.id.toLowerCase()] = removeRiffStructure(child);
});
Object.entries(riffObject.data).forEach(([key, value]) => {
result[key] = value;
});
return result;
};
module.exports = removeRiffStructure;
},
{},
],
11: [
function (require, module, exports) {
"use strict";
const { floor } = Math;
const groupArray = (array, groupSize) => {
return array.reduce((result, item, index) => {
const i1 = floor(index / groupSize);
const i2 = index % groupSize;
if (i2 == 0) result.push([]);
result[i1].push(item);
return result;
}, []);
};
module.exports = groupArray;
},
{},
],
12: [
function (require, module, exports) {
"use strict";
// see <https://en.wikipedia.org/wiki/IEEE_754>
const { floor } = Math;
const BYTE_SIZE = 8;
const flatten = (array) => [].concat.apply([], array);
const binarifyByte = (byte) => {
let bits = [];
for (let i = 1; i <= BYTE_SIZE; i++) {
const divident = Math.pow(2, BYTE_SIZE - i);
const bit = floor(byte / divident);
bits.push(bit);
byte = byte % divident;
}
return bits.reverse();
};
const getExponentValueOfBits = (bits) =>
bits.reduce(
(sum, bit, index) =>
sum + (bit ? Math.pow(2, BYTE_SIZE - index - 1) : 0),
-127
);
const getMantissaValueOfBits = (bits, denormalized) =>
bits.reduce(
(sum, bit, index) => {
return sum + (bit ? Math.pow(2, -1 * index - 1) : 0);
},
denormalized ? 0 : 1
);
const read4ByteFloat = (data) => {
data = data.reverse();
const deepBits = data.map((byte) => binarifyByte(byte).reverse());
const bits = flatten(deepBits);
const sign = bits[0];
let exponent = getExponentValueOfBits(bits.slice(1, 9));
const denormalized = exponent === -127;
exponent += denormalized ? 1 : 0;
const mantissa = getMantissaValueOfBits(
bits.slice(9),
denormalized
);
// potentes in JavaScript causes wrong result
if (mantissa === 0) return 0;
return (sign ? -1 : 1) * Math.pow(mantissa, exponent);
};
module.exports = read4ByteFloat;
},
{},
],
13: [
function (require, module, exports) {
"use strict";
const read4ByteInteger = (data) =>
data
.map((num, index) => num * Math.pow(2, 8 * index))
.reduce((sum, summand) => sum + summand, 0);
module.exports = read4ByteInteger;
},
{},
],
14: [
function (require, module, exports) {
"use strict";
const read4ByteString = (data) =>
data.map((charCode) => String.fromCharCode(charCode)).join("");
module.exports = read4ByteString;
},
{},
],
},
{},
[4]
);
});