feat: add render graph driven renderer architecture

Amp-Thread-ID: https://ampcode.com/threads/T-019f9d91-77c1-7206-a60f-ed6554ce92ab

Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

renderer/src/lib.rs

@@ -1,9 +1,48 @@
 pub mod app_setup;
 pub mod camera;
+pub mod command_ring;
 pub mod gltf;
 pub mod message;
 pub mod platform;
+pub mod render_data;
+pub mod render_graph;
 pub mod renderer;
+pub mod shared_snapshot;
+
+#[cfg(target_arch = "wasm32")]
+thread_local! { static PAYLOADS: std::cell::RefCell<std::collections::HashMap<u32, Vec<u8>>> = Default::default(); }
+
+#[cfg(target_arch = "wasm32")]
+#[wasm_bindgen::prelude::wasm_bindgen]
+pub fn stage_payload(id: u32, bytes: js_sys::Uint8Array) {
+    PAYLOADS.with(|payloads| {
+        payloads.borrow_mut().insert(id, bytes.to_vec());
+    });
+}
+
+#[cfg(target_arch = "wasm32")]
+#[wasm_bindgen::prelude::wasm_bindgen]
+pub fn discard_payload(id: u32) {
+    PAYLOADS.with(|payloads| {
+        payloads.borrow_mut().remove(&id);
+    });
+}
+
+#[cfg(target_arch = "wasm32")]
+#[wasm_bindgen::prelude::wasm_bindgen]
+pub fn clear_payloads() {
+    PAYLOADS.with(|payloads| payloads.borrow_mut().clear());
+}
+
+#[cfg(target_arch = "wasm32")]
+pub(crate) fn take_payload(id: u32) -> Option<Vec<u8>> {
+    PAYLOADS.with(|payloads| payloads.borrow_mut().remove(&id))
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+pub(crate) fn take_payload(_id: u32) -> Option<Vec<u8>> {
+    None
+}
 
 /// Worker entrypoint helper - executes the closure it is spawned with
 /// Applications should export this with #[wasm_bindgen]