Rebuild core around render graph AST and shared memory

Amp-Thread-ID: https://ampcode.com/threads/T-01a01380-b478-77d0-84a0-102880a5c5ae Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
2026-08-18 11:58:31 +00:00
parent a23ef37b4d
commit 0e44917f9e
101 changed files with 4409 additions and 2610 deletions
@@ -0,0 +1,28 @@
+import { writeSharedUpload } from "./shared-upload.js";
+
+const downloads = new Map();
+
+addEventListener("message", async ({ data: message }) => {
+  const request = message?.request;
+  try {
+    if (message?.type === "load") {
+      const response = await fetch(message.url);
+      if (!response.ok) throw new Error(`HTTP_${response.status}`);
+      const bytes = new Uint8Array(await response.arrayBuffer());
+      if (!bytes.byteLength) throw new Error("GLTF_EMPTY");
+      downloads.set(request, bytes);
+      postMessage({ type: "allocate", request, byteLength: bytes.byteLength });
+      return;
+    }
+    if (message?.type === "storage") {
+      const bytes = downloads.get(request);
+      if (!bytes) throw new Error("GLTF_REQUEST_UNKNOWN");
+      writeSharedUpload(message.buffer, message.descriptor, bytes);
+      downloads.delete(request);
+      postMessage({ type: "ready", request, byteLength: bytes.byteLength });
+    }
+  } catch (error) {
+    downloads.delete(request);
+    postMessage({ type: "error", request, code: error?.message || "GLTF_IMPORT_FAILED" });
+  }
+});