@pixi/core/lib/geometry/Buffer.js

Core PixiJS

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var constants = require('@pixi/constants');
var runner = require('@pixi/runner');

let UID = 0;
class Buffer {
  constructor(data, _static = true, index = false) {
    this.data = data || new Float32Array(1);
    this._glBuffers = {};
    this._updateID = 0;
    this.index = index;
    this.static = _static;
    this.id = UID++;
    this.disposeRunner = new runner.Runner("disposeBuffer");
  }
  update(data) {
    if (data instanceof Array) {
      data = new Float32Array(data);
    }
    this.data = data || this.data;
    this._updateID++;
  }
  dispose() {
    this.disposeRunner.emit(this, false);
  }
  destroy() {
    this.dispose();
    this.data = null;
  }
  set index(value) {
    this.type = value ? constants.BUFFER_TYPE.ELEMENT_ARRAY_BUFFER : constants.BUFFER_TYPE.ARRAY_BUFFER;
  }
  get index() {
    return this.type === constants.BUFFER_TYPE.ELEMENT_ARRAY_BUFFER;
  }
  static from(data) {
    if (data instanceof Array) {
      data = new Float32Array(data);
    }
    return new Buffer(data);
  }
}

exports.Buffer = Buffer;
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