@dcl/ecs
Version:
Decentraland ECS
273 lines (272 loc) • 12.8 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _ReadWriteByteBuffer_instances, _ReadWriteByteBuffer_woAdd, _ReadWriteByteBuffer_roAdd;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ReadWriteByteBuffer = void 0;
const utf8 = __importStar(require("@protobufjs/utf8"));
/**
* Take the max between currentSize and intendedSize and then plus 1024. Then,
* find the next nearer multiple of 1024.
* @param currentSize - number
* @param intendedSize - number
* @returns the calculated number
*/
function getNextSize(currentSize, intendedSize) {
const minNewSize = Math.max(currentSize, intendedSize) + 1024;
return Math.ceil(minNewSize / 1024) * 1024;
}
const defaultInitialCapacity = 10240;
/**
* ByteBuffer is a wrapper of DataView which also adds a read and write offset.
* Also in a write operation it resizes the buffer is being used if it needs.
*
* - Use read and write function to generate or consume data.
* - Use set and get only if you are sure that you're doing.
*
* It always passes littleEndian param as true
*/
class ReadWriteByteBuffer {
/**
* @param buffer - The initial buffer, provide a buffer if you need to set "initial capacity"
* @param readingOffset - Set the cursor where begins to read. Default 0
* @param writingOffset - Set the cursor to not start writing from the begin of it. Defaults to the buffer size
*/
constructor(buffer, readingOffset, writingOffset) {
_ReadWriteByteBuffer_instances.add(this);
this._buffer = buffer || new Uint8Array(defaultInitialCapacity);
this.view = new DataView(this._buffer.buffer, this._buffer.byteOffset);
this.woffset = writingOffset ?? (buffer ? this._buffer.length : null) ?? 0;
this.roffset = readingOffset ?? 0;
}
buffer() {
return this._buffer;
}
bufferLength() {
return this._buffer.length;
}
resetBuffer() {
this.roffset = 0;
this.woffset = 0;
}
currentReadOffset() {
return this.roffset;
}
currentWriteOffset() {
return this.woffset;
}
incrementReadOffset(amount) {
return __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, amount);
}
remainingBytes() {
return this.woffset - this.roffset;
}
readFloat32() {
return this.view.getFloat32(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 4), true); // littleEndian = true
}
readFloat64() {
return this.view.getFloat64(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 8), true); // littleEndian = true
}
readInt8() {
return this.view.getInt8(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 1));
}
readInt16() {
return this.view.getInt16(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 2), true); // littleEndian = true
}
readInt32() {
return this.view.getInt32(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 4), true); // littleEndian = true
}
readInt64() {
return this.view.getBigInt64(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 8), true); // littleEndian = true
}
readUint8() {
return this.view.getUint8(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 1));
}
readUint16() {
return this.view.getUint16(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 2), true); // littleEndian = true
}
readUint32() {
return this.view.getUint32(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 4), true); // littleEndian = true
}
readUint64() {
return this.view.getBigUint64(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 8), true); // littleEndian = true
}
readBuffer() {
const length = this.view.getUint32(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 4), true); // littleEndian = true
return this._buffer.subarray(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, length), __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 0));
}
readUtf8String() {
const length = this.view.getUint32(__classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 4), true); // littleEndian = true
return utf8.read(this._buffer, __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, length), __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_roAdd).call(this, 0));
}
incrementWriteOffset(amount) {
return __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, amount);
}
toBinary() {
return this._buffer.subarray(0, this.woffset);
}
toCopiedBinary() {
return new Uint8Array(this.toBinary());
}
writeBuffer(value, writeLength = true) {
if (writeLength) {
this.writeUint32(value.byteLength);
}
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, value.byteLength);
this._buffer.set(value, o);
}
writeUtf8String(value, writeLength = true) {
const byteLength = utf8.length(value);
if (writeLength) {
this.writeUint32(byteLength);
}
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, byteLength);
utf8.write(value, this._buffer, o);
}
writeFloat32(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 4);
this.view.setFloat32(o, value, true); // littleEndian = true
}
writeFloat64(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 8);
this.view.setFloat64(o, value, true); // littleEndian = true
}
writeInt8(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 1);
this.view.setInt8(o, value);
}
writeInt16(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 2);
this.view.setInt16(o, value, true); // littleEndian = true
}
writeInt32(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 4);
this.view.setInt32(o, value, true); // littleEndian = true
}
writeInt64(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 8);
this.view.setBigInt64(o, value, true); // littleEndian = true
}
writeUint8(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 1);
this.view.setUint8(o, value);
}
writeUint16(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 2);
this.view.setUint16(o, value, true); // littleEndian = true
}
writeUint32(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 4);
this.view.setUint32(o, value, true); // littleEndian = true
}
writeUint64(value) {
const o = __classPrivateFieldGet(this, _ReadWriteByteBuffer_instances, "m", _ReadWriteByteBuffer_woAdd).call(this, 8);
this.view.setBigUint64(o, value, true); // littleEndian = true
}
// DataView Proxy
getFloat32(offset) {
return this.view.getFloat32(offset, true); // littleEndian = true
}
getFloat64(offset) {
return this.view.getFloat64(offset, true); // littleEndian = true
}
getInt8(offset) {
return this.view.getInt8(offset);
}
getInt16(offset) {
return this.view.getInt16(offset, true); // littleEndian = true
}
getInt32(offset) {
return this.view.getInt32(offset, true); // littleEndian = true
}
getInt64(offset) {
return this.view.getBigInt64(offset, true); // littleEndian = true
}
getUint8(offset) {
return this.view.getUint8(offset);
}
getUint16(offset) {
return this.view.getUint16(offset, true); // littleEndian = true
}
getUint32(offset) {
return this.view.getUint32(offset, true); // littleEndian = true >>> 0
}
getUint64(offset) {
return this.view.getBigUint64(offset, true); // littleEndian = true
}
setFloat32(offset, value) {
this.view.setFloat32(offset, value, true); // littleEndian = true
}
setFloat64(offset, value) {
this.view.setFloat64(offset, value, true); // littleEndian = true
}
setInt8(offset, value) {
this.view.setInt8(offset, value);
}
setInt16(offset, value) {
this.view.setInt16(offset, value, true); // littleEndian = true
}
setInt32(offset, value) {
this.view.setInt32(offset, value, true); // littleEndian = true
}
setInt64(offset, value) {
this.view.setBigInt64(offset, value, true); // littleEndian = true
}
setUint8(offset, value) {
this.view.setUint8(offset, value);
}
setUint16(offset, value) {
this.view.setUint16(offset, value, true); // littleEndian = true
}
setUint32(offset, value) {
this.view.setUint32(offset, value, true); // littleEndian = true
}
setUint64(offset, value) {
this.view.setBigUint64(offset, value, true); // littleEndian = true
}
}
exports.ReadWriteByteBuffer = ReadWriteByteBuffer;
_ReadWriteByteBuffer_instances = new WeakSet(), _ReadWriteByteBuffer_woAdd = function _ReadWriteByteBuffer_woAdd(amount) {
if (this.woffset + amount > this._buffer.byteLength) {
const newsize = getNextSize(this._buffer.byteLength, this.woffset + amount);
const newBuffer = new Uint8Array(newsize);
newBuffer.set(this._buffer);
const oldOffset = this._buffer.byteOffset;
this._buffer = newBuffer;
this.view = new DataView(this._buffer.buffer, oldOffset);
}
this.woffset += amount;
return this.woffset - amount;
}, _ReadWriteByteBuffer_roAdd = function _ReadWriteByteBuffer_roAdd(amount) {
if (this.roffset + amount > this.woffset) {
throw new Error('Outside of the bounds of writen data.');
}
this.roffset += amount;
return this.roffset - amount;
};