@openhps/core/dist/cjs/three/renderers/common/Buffer.js

Open Hybrid Positioning System - Core component

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _Binding = _interopRequireDefault(require("./Binding.js"));
var _BufferUtils = require("./BufferUtils.js");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
 * Represents a buffer binding type.
 *
 * @private
 * @abstract
 * @augments Binding
 */
class Buffer extends _Binding.default {
  /**
   * Constructs a new buffer.
   *
   * @param {string} name - The buffer's name.
   * @param {TypedArray} [buffer=null] - The buffer.
   */
  constructor(name, buffer = null) {
    super(name);

    /**
     * This flag can be used for type testing.
     *
     * @type {boolean}
     * @readonly
     * @default true
     */
    this.isBuffer = true;

    /**
     * The bytes per element.
     *
     * @type {number}
     */
    this.bytesPerElement = Float32Array.BYTES_PER_ELEMENT;

    /**
     * A reference to the internal buffer.
     *
     * @private
     * @type {TypedArray}
     */
    this._buffer = buffer;
  }

  /**
   * The buffer's byte length.
   *
   * @type {number}
   * @readonly
   */
  get byteLength() {
    return (0, _BufferUtils.getFloatLength)(this._buffer.byteLength);
  }

  /**
   * A reference to the internal buffer.
   *
   * @type {Float32Array}
   * @readonly
   */
  get buffer() {
    return this._buffer;
  }

  /**
   * Updates the binding.
   *
   * @return {boolean} Whether the buffer has been updated and must be
   * uploaded to the GPU.
   */
  update() {
    return true;
  }
}
var _default = exports.default = Buffer;