92 lines
2.8 KiB
JavaScript
92 lines
2.8 KiB
JavaScript
import * as cornerstone from '@cornerstonejs/core';
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import { volumeLoader } from '@cornerstonejs/core';
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import { cornerstoneStreamingImageVolumeLoader } from '@cornerstonejs/streaming-image-volume-loader';
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import dicomImageLoader, { webWorkerManager } from '@cornerstonejs/dicom-image-loader';
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import dicomParser from 'dicom-parser';
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import { errorHandler, utils } from '@ohif/core';
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const { registerVolumeLoader } = volumeLoader;
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let initialized = false;
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function initWebWorkers(appConfig) {
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const config = {
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maxWebWorkers: Math.min(
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Math.max(navigator.hardwareConcurrency - 1, 1),
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appConfig.maxNumberOfWebWorkers
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),
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startWebWorkersOnDemand: true,
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taskConfiguration: {
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decodeTask: {
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initializeCodecsOnStartup: false,
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usePDFJS: false,
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strict: false,
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},
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},
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};
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if (!initialized) {
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dicomImageLoader.webWorkerManager.initialize(config);
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initialized = true;
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}
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}
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export default function initWADOImageLoader(
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userAuthenticationService,
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appConfig,
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extensionManager
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) {
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dicomImageLoader.external.cornerstone = cornerstone;
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dicomImageLoader.external.dicomParser = dicomParser;
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registerVolumeLoader('cornerstoneStreamingImageVolume', cornerstoneStreamingImageVolumeLoader);
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dicomImageLoader.configure({
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decodeConfig: {
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// !! IMPORTANT !!
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// We should set this flag to false, since, by default @cornerstonejs/dicom-image-loader
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// will convert everything to integers (to be able to work with cornerstone-2d).
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// Until the default is set to true (which is the case for cornerstone3D),
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// we should set this flag to false.
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convertFloatPixelDataToInt: false,
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use16BitDataType:
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Boolean(appConfig.useNorm16Texture) || Boolean(appConfig.preferSizeOverAccuracy),
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},
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beforeSend: function (xhr) {
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//TODO should be removed in the future and request emitted by DicomWebDataSource
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const sourceConfig = extensionManager.getActiveDataSource()?.[0].getConfig() ?? {};
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const headers = userAuthenticationService.getAuthorizationHeader();
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const acceptHeader = utils.generateAcceptHeader(
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sourceConfig.acceptHeader,
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sourceConfig.requestTransferSyntaxUID,
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sourceConfig.omitQuotationForMultipartRequest
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);
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const xhrRequestHeaders = {
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Accept: acceptHeader,
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};
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if (headers) {
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Object.assign(xhrRequestHeaders, headers);
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}
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return xhrRequestHeaders;
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},
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errorInterceptor: error => {
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errorHandler.getHTTPErrorHandler(error);
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},
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});
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initWebWorkers(appConfig);
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}
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export function destroy() {
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// Note: we don't want to call .terminate on the webWorkerManager since
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// that resets the config
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const webWorkers = webWorkerManager.webWorkers;
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for (let i = 0; i < webWorkers.length; i++) {
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webWorkers[i].worker.terminate();
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}
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webWorkers.length = 0;
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}
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