1/* 2 * Copyright (c) 2025 Huawei Device 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 16import { image } from '@kit.ImageKit'; 17 18@Concurrent 19export async function loadPixelMap(rawFileDescriptor: number): Promise<PixelMap> { 20 // 创建imageSource。 21 const imageSource = image.createImageSource(rawFileDescriptor); 22 // 创建pixelMap。 23 const pixelMap = imageSource.createPixelMapSync(); 24 // 释放imageSource。 25 imageSource.release(); 26 // 使pixelMap在跨线程传输完成后，断开原线程的引用。 27 pixelMap.setTransferDetached(true); 28 // 返回pixelMap给主线程。 29 return pixelMap; 30} 31