1/* 2 * Copyright (c) 2023 Hunan OpenValley Digital Industry Development Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16export default class PixelMapQueue { 17 private items: PixelMap[] = []; 18 19 constructor() { 20 this.items = []; 21 } 22 23 push(pm: PixelMap): void { 24 this.items.push(pm); 25 } 26 27 pop(): PixelMap | undefined { 28 return this.items.pop(); 29 } 30}