Update Files

leenkx/Sources/iron/data/Wasm.hx

@@ -0,0 +1,52 @@
+package iron.data;
+
+#if js
+
+class Wasm {
+
+	public var exports: Dynamic;
+
+	public static inline function instance(blob: kha.Blob, importObject: Dynamic = null): Wasm {
+		var data = blob.toBytes().getData();
+		var module = new js.lib.webassembly.Module(data);
+		var exports: Dynamic = importObject == null ?
+			new js.lib.webassembly.Instance(module).exports :
+			new js.lib.webassembly.Instance(module, importObject).exports;
+		return new Wasm(exports);
+	}
+
+	#if kha_html5_js
+	public static function instantiateStreaming(blob: kha.Blob, importObject: Dynamic = null, done: Wasm->Void) {
+		js.lib.WebAssembly.instantiateStreaming(new js.html.Response(blob.toBytes().getData(), {
+			headers: new js.html.Headers({"Content-Type": "application/wasm"})
+		}), importObject).then(m -> done(new Wasm(m.instance.exports)));
+	}
+	#end
+
+	function new(exports: Dynamic) {
+		this.exports = exports;
+	}
+
+	public function getString(i: Int): String { // Retrieve string from memory pointer
+		var mem = getMemory(i, 32);
+		var s = "";
+		for (i in 0...32) {
+			mem[i] == 0 ? break : s += String.fromCharCode(mem[i]);
+		}
+		return s;
+	}
+
+	public inline function getMemory(offset: Int, length: Int): js.lib.Uint8Array {
+		return new js.lib.Uint8Array(exports.memory.buffer, offset, length);
+	}
+
+	public inline function getMemoryF32(offset: Int, length: Int): kha.arrays.Float32Array {
+		return new kha.arrays.Float32Array(exports.memory.buffer).subarray( offset, length );
+	}
+
+	public inline function getMemoryU32(offset: Int, length: Int): kha.arrays.Uint32Array {
+		return new kha.arrays.Uint32Array(exports.memory.buffer).subarray(offset, length);
+	}
+}
+
+#end