HarmonyOS鸿蒙Next中getHdrComposedPixelmap的实现与应用

HarmonyOS鸿蒙Next中getHdrComposedPixelmap的实现与应用

const HDRContext = getContext();
const HDRResourceMgr = HDRContext.resourceManager;
const HDRRawFile = await HDRResourceMgr.getRawFileContent("HDR2.jpg");
let exifOps: image.SourceOptions = {
  sourceDensity: 98,
}
let HDRImageSource: image.ImageSource = image.createImageSource(HDRRawFile.buffer as ArrayBuffer, exifOps);
let HDRCommodityPixelMap: image.PixelMap = await HDRImageSource.createPixelMap();
let HDRPictureObj: image.Picture = image.createPicture(HDRCommodityPixelMap);
if (HDRPictureObj != null) { //图片包含Hdr图
  try {
    let hdrComposedPixelmap: image.PixelMap = await HDRPictureObj.getHdrComposedPixelmap();
    if (hdrComposedPixelmap != null) {
      hdrComposedPixelmap.getImageInfo().then((imageInfo: image.ImageInfo) => {
        if (imageInfo != null) {
          console.info('GetHdrComposedPixelmap information height:' + imageInfo.size.height +
            ' width:' + imageInfo.size.width);
        }
      }).catch((error: BusinessError) => {
        console.error(`Failed error.code: ${error.code} ,error.message: ${error.message}`);
      });
    }
  } catch (e) {
    e as BusinessError
    console.error(`Failed error.code: ${e.code} ,error.message: ${e.message}`);
  }
} else {
  console.info('hdrPictureObj is null');
}

使用picture的getHdrComposedPixelmap方法报错,提示error.code: 7600201 ,error.message: There is no GAINMAP

使用的是网上找的HDR图片资源