split

js/pixel-worker.js

@@ -0,0 +1,21 @@
+'use strict';
+
+importScripts('./pixel-codec.js');
+
+const PixelCodec = self.PixelIslandModules.PixelCodec;
+
+self.onmessage = (event) => {
+  const { id, type, payload } = event.data || {};
+  try {
+    if (type === 'buildPixelBlobs') {
+      const palette = Array.isArray(payload?.palette) ? payload.palette : [];
+      const defaultColorCode = payload?.defaultColorCode || 'a';
+      const blobs = (payload?.assets || []).map((asset) => PixelCodec.buildPixelBlob(asset?.faces?.right || asset?.pixels || '', PixelCodec.assetWidth(asset), PixelCodec.assetHeight(asset), palette, defaultColorCode));
+      self.postMessage({ id, ok: true, result: blobs });
+      return;
+    }
+    self.postMessage({ id, ok: false, error: 'unsupported_worker_request' });
+  } catch (error) {
+    self.postMessage({ id, ok: false, error: error?.message || 'worker_error' });
+  }
+};