Set up a basic "front-end" for the webassembly module to be tested locally from a data folder (I use python -m http.server). The WebAssembly application is now responsible for all setup/rendering through the WebGL2 context.

data/wasm_functions.js

@@ -0,0 +1,42 @@
+
+import { appGlobals } from './globals.js'
+
+export async function loadWasmModule(filePath, environment)
+{
+	let result = null;
+	try
+	{
+		const fetchPromise = fetch(filePath);
+		const wasmModule = await WebAssembly.instantiateStreaming(
+			fetchPromise,
+			{ env: environment }
+		);
+		result = wasmModule.instance;
+	}
+	catch (exception)
+	{
+		console.error("Failed to load WASM module from \"" + filePath + "\":", exception);
+	}
+	return result;
+}
+
+//TODO: We should do some performance measurements of wasmPntrToJsString vs wasmPntrAndLengthToJsString!
+export function wasmPntrToJsString(ptr)
+{
+	let cIndex = ptr;
+	while (cIndex < appGlobals.memDataView.byteLength)
+	{
+		let byteValue = appGlobals.memDataView.getUint8(cIndex, true);
+		if (byteValue == 0) { break; }
+		cIndex++;
+	}
+	return appGlobals.textDecoder.decode(
+		appGlobals.memDataView.buffer.slice(ptr, cIndex)
+	);
+}
+export function wasmPntrAndLengthToJsString(ptr, length)
+{
+	return appGlobals.textDecoder.decode(
+		appGlobals.memDataView.buffer.slice(ptr, ptr + length)
+	);
+}