Restructure GPU compilation execution pipeline (#903)

* Restructure gpu compilation execution pipeline

* Add compilation server/client infrastructure

* Add wgpu executor

node-graph/future-executor/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "future-executor"
+version = "0.1.0"
+edition = "2021"
+authors = ["Graphite Authors <contact@graphite.rs>"]
+license = "MIT OR Apache-2.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+futures = "0.3.25"
+log = "0.4"
+
+[target.wasm32-unknown-unknown.dependencies]
+wasm-rs-async-executor = {version = "0.9.0", features = ["cooperative-browser", "debug", "requestIdleCallback"] }

node-graph/future-executor/src/lib.rs

@@ -0,0 +1,26 @@
+use core::future::Future;
+
+pub fn block_on<F: Future + 'static>(future: F) -> F::Output {
+	#[cfg(target_arch = "wasm32")]
+	{
+		use wasm_rs_async_executor::single_threaded as executor;
+
+		let val = std::sync::Arc::new(std::sync::Mutex::new(None));
+		let move_val = val.clone();
+		let result = executor::spawn(async move {
+			let result = executor::yield_async(future).await;
+			*move_val.lock().unwrap() = Some(result);
+			log::info!("Finished");
+		});
+		executor::run(Some(result.task()));
+		loop {
+			if let Some(result) = val.lock().unwrap().take() {
+				return result;
+			}
+			log::info!("Waiting");
+		}
+	}
+
+	#[cfg(not(target_arch = "wasm32"))]
+	futures::executor::block_on(future)
+}