29 lines
1.6 KiB
JavaScript
29 lines
1.6 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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const WORKER_CODE = "(function () {\n 'use strict';\n\n async function loadImageBitmap(url, alphaMode) {\n const response = await fetch(url);\n if (!response.ok) {\n throw new Error(`[WorkerManager.loadImageBitmap] Failed to fetch ${url}: ${response.status} ${response.statusText}`);\n }\n const imageBlob = await response.blob();\n return alphaMode === \"premultiplied-alpha\" ? createImageBitmap(imageBlob, { premultiplyAlpha: \"none\" }) : createImageBitmap(imageBlob);\n }\n self.onmessage = async (event) => {\n try {\n const imageBitmap = await loadImageBitmap(event.data.data[0], event.data.data[1]);\n self.postMessage({\n data: imageBitmap,\n uuid: event.data.uuid,\n id: event.data.id\n }, [imageBitmap]);\n } catch (e) {\n self.postMessage({\n error: e,\n uuid: event.data.uuid,\n id: event.data.id\n });\n }\n };\n\n})();\n";
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let WORKER_URL = null;
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class WorkerInstance
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{
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constructor()
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{
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if (!WORKER_URL)
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{
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WORKER_URL = URL.createObjectURL(new Blob([WORKER_CODE], { type: 'application/javascript' }));
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}
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this.worker = new Worker(WORKER_URL);
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}
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}
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WorkerInstance.revokeObjectURL = function revokeObjectURL()
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{
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if (WORKER_URL)
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{
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URL.revokeObjectURL(WORKER_URL);
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WORKER_URL = null;
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}
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};
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exports.default = WorkerInstance;
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//# sourceMappingURL=loadImageBitmap.worker.js.map
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