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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x 9454x | import type { Types } from '@cornerstonejs/core';
import { xhrRequest } from '../internal/index';
// import rangeRequest from '../internal/rangeRequest';
import streamRequest from '../internal/streamRequest';
import rangeRequest from '../internal/rangeRequest';
import extractMultipart from './extractMultipart';
import { getImageQualityStatus } from './getImageQualityStatus';
import type { CornerstoneWadoRsLoaderOptions } from './loadImage';
function getPixelData(
uri: string,
imageId: string,
mediaType = 'application/octet-stream',
options?: CornerstoneWadoRsLoaderOptions
) {
const { streamingData, retrieveOptions = {} as Types.RetrieveOptions } =
options || {};
const headers = {
Accept: mediaType,
};
// Add urlArguments to the url for retrieving - allows accept and other
// parameters to be added.
let url = retrieveOptions.urlArguments
? `${uri}${uri.indexOf('?') === -1 ? '?' : '&'}${
retrieveOptions.urlArguments
}`
: uri;
// Replace the /frames/ part of the path with another path to choose
// a different resource type.
Iif (retrieveOptions.framesPath) {
url = url.replace('/frames/', retrieveOptions.framesPath);
}
// Swap the streaming data out if a new instance starts.
Eif (streamingData?.url !== url) {
options.streamingData = { url };
}
Iif (
(retrieveOptions as Types.RangeRetrieveOptions).rangeIndex !== undefined
) {
return rangeRequest(url, imageId, headers, options);
}
// Use the streaming parser only when configured to do so
Iif ((retrieveOptions as Types.StreamingRetrieveOptions).streaming) {
return streamRequest(url, imageId, headers, options);
}
/**
* Not progressively rendering, use regular xhr request.
*/
const loadPromise = xhrRequest(url, imageId, headers);
const { xhr } = loadPromise;
return loadPromise.then(function (imageFrameAsArrayBuffer /* , xhr*/) {
const contentType =
xhr.getResponseHeader('Content-Type') || 'application/octet-stream';
const extracted = extractMultipart(
contentType,
new Uint8Array(imageFrameAsArrayBuffer)
);
extracted.imageQualityStatus = getImageQualityStatus(retrieveOptions, true);
return extracted;
});
}
export default getPixelData;
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