62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
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importScripts("./wasm_exec.js");
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if (!WebAssembly.instantiateStreaming) {
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WebAssembly.instantiateStreaming = async (resp, importObject) => {
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const source = await (await resp).arrayBuffer();
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return await WebAssembly.instantiate(source, importObject);
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};
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}
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// Create promise to handle Worker calls whilst
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// module is still initialising
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let wasmResolve;
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const wasmReady = new Promise((resolve) => {
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wasmResolve = resolve;
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});
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const go = new self.Go();
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addEventListener(
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"message",
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async (e) => {
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const { eventType, eventData, eventId } = e.data;
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if (eventType === "INITIALISE") {
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const instantiatedSource = await WebAssembly.instantiateStreaming(
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fetch(eventData),
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go.importObject
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);
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go.run(instantiatedSource.instance);
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// Go does nor exposes the exports in the instantiated module :(((
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const methods = ["DitherNord"];
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wasmResolve(methods);
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postMessage({
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eventType: "INITIALISED",
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eventData: methods,
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});
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} else if (eventType === "CALL") {
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await wasmReady;
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try {
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const method = self[eventData.method];
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const result = await method.apply(null, eventData.arguments);
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self.postMessage({
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eventType: "RESULT",
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eventData: result,
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eventId: eventId,
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});
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} catch (e) {
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console.error(e);
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self.postMessage({
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eventType: "ERROR",
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eventData:
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"An error occured executing WASM instance function: " +
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error.toString(),
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eventId: eventId,
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});
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}
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}
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},
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false
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);
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