Update #44 - WebAssembly GC support, fix more WebRTC bugs

sources/wasm-gc-teavm/js/platformRuntime.js

@@ -0,0 +1,208 @@
+/*
+ * Copyright (c) 2024 lax1dude. All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+
+const platfRuntimeName = "platformRuntime";
+
+var allowImmediateContinue = false;
+const immediateContinueChannel = new MessageChannel();
+var immediateContinueHandler = null;
+
+immediateContinueChannel.port2.addEventListener("message", function(evt) {
+	immediateContinueHandler();
+});
+
+async function initializePlatfRuntime() {
+	immediateContinueChannel.port1.start();
+	immediateContinueChannel.port2.start();
+
+	immediateContinueHandler = function() {
+		immediateContinueHandler = null;
+	};
+
+	immediateContinueChannel.port1.postMessage(0);
+
+	if(immediateContinueHandler) {
+		await new Promise(function(resolve) {
+			setTimeout(function() {
+				if(!immediateContinueHandler) {
+					allowImmediateContinue = true;
+				}else {
+					eagError("Immediate continue hack is not supported");
+				}
+				resolve();
+			}, 25);
+		});
+	}else {
+		eagError("Immediate continue hack is not supported");
+	}
+}
+
+/**
+ * @return {HTMLElement}
+ */
+eagruntimeImpl.platformRuntime["getRootElement"] = function() {
+	return rootElement;
+};
+
+/**
+ * @return {HTMLElement}
+ */
+eagruntimeImpl.platformRuntime["getParentElement"] = function() {
+	return parentElement;
+};
+
+/**
+ * @return {HTMLCanvasElement}
+ */
+eagruntimeImpl.platformRuntime["getCanvasElement"] = function() {
+	return canvasElement;
+};
+
+/**
+ * @return {Object}
+ */
+eagruntimeImpl.platformRuntime["getEaglercraftXOpts"] = function() {
+	return eaglercraftXOpts;
+};
+
+eagruntimeImpl.platformRuntime["getEventCount"] = mainEventQueue.getLength.bind(mainEventQueue);
+
+eagruntimeImpl.platformRuntime["getNextEvent"] = mainEventQueue.shift.bind(mainEventQueue);
+
+const EVENT_RUNTIME_ASYNC_DOWNLOAD = 0;
+
+/**
+ * @param {string} uri
+ * @param {number} forceCache
+ * @param {number} id
+ */
+eagruntimeImpl.platformRuntime["queueAsyncDownload"] = function(uri, forceCache, id) {
+	try {
+		fetch(uri, /** @type {!RequestInit} */ ({
+			"cache": forceCache ? "force-cache" : "no-store",
+			"mode": "cors"
+		})).then(function(res) {
+			return res.arrayBuffer();
+		}).then(function(arr) {
+			pushEvent(EVENT_TYPE_RUNTIME, EVENT_RUNTIME_ASYNC_DOWNLOAD, {
+				"requestId": id,
+				"arrayBuffer": arr
+			});
+		}).catch(function(err) {
+			eagError("Failed to complete async download: {}", uri);
+			eagStackTrace(ERROR, "Exception Caught", /** @type {Error} */ (err));
+			pushEvent(EVENT_TYPE_RUNTIME, EVENT_RUNTIME_ASYNC_DOWNLOAD, {
+				"requestId": id,
+				"arrayBuffer": null
+			});
+		});
+	}catch(/** Error */ ex) {
+		eagError("Failed to fetch: {}", uri);
+		eagStackTrace(ERROR, "Exception Caught", ex);
+		pushEvent(EVENT_TYPE_RUNTIME, EVENT_RUNTIME_ASYNC_DOWNLOAD, {
+			"requestId": id,
+			"arrayBuffer": null
+		});
+	}
+};
+
+/**
+ * @param {string} uri
+ * @param {number} forceCache
+ * @return {Promise}
+ */
+function downloadImpl(uri, forceCache) {
+	return new Promise(function(resolve) {
+		try {
+			fetch(uri, /** @type {!RequestInit} */ ({
+				"cache": forceCache ? "force-cache" : "no-store",
+				"mode": "cors"
+			})).then(function(res) {
+				return res.arrayBuffer();
+			}).then(function(arr) {
+				resolve(arr);
+			}).catch(function(err) {
+				eagError("Failed to complete download: {}", uri);
+				eagStackTrace(ERROR, "Exception Caught", /** @type {Error} */ (err));
+				resolve(null);
+			});
+		}catch(/** Error */ ex) {
+			eagError("Failed to fetch: {}", uri);
+			eagStackTrace(ERROR, "Exception Caught", ex);
+			resolve(null);
+		}
+	});
+}
+
+eagruntimeImpl.platformRuntime["download"] = new WebAssembly.Suspending(downloadImpl);
+
+/**
+ * @param {string} crashDump
+ */
+eagruntimeImpl.platformRuntime["writeCrashReport"] = function(crashDump) {
+	displayCrashReport(crashDump, false);
+};
+
+eagruntimeImpl.platformRuntime["steadyTimeMillis"] = performance.now.bind(performance);
+
+/**
+ * @param {number} millis
+ * @return {Promise}
+ */
+function sleepImpl(millis) {
+	return new Promise(function(resolve) {
+		setTimeout(resolve, millis);
+	});
+}
+
+eagruntimeImpl.platformRuntime["sleep"] = new WebAssembly.Suspending(sleepImpl);
+
+function immediateContinueResolver(resolve) {
+	if(allowImmediateContinue) {
+		immediateContinueHandler = resolve;
+		immediateContinueChannel.port1.postMessage(0);
+	}else {
+		setTimeout(resolve, 0);
+	}
+}
+
+/**
+ * @return {Promise}
+ */
+function immediateContinueImpl() {
+	return new Promise(immediateContinueResolver);
+}
+
+/**
+ * @return {Promise}
+ */
+function swapDelayImpl() {
+	if(!runtimeOpts.useDelayOnSwap) {
+		return immediateContinueImpl();
+	}else {
+		return sleepImpl(0);
+	}
+}
+
+eagruntimeImpl.platformRuntime["immediateContinue"] = new WebAssembly.Suspending(immediateContinueImpl);
+
+/**
+ * @param {number} id
+ * @param {string} str
+ */
+eagruntimeImpl.platformRuntime["setCrashReportString"] = function(id, str) {
+	crashReportStrings[id] = str;
+};