planning

node_modules/geotiff/dist-module/compression/index.js

@@ -0,0 +1,29 @@
+const registry = new Map();
+
+export function addDecoder(cases, importFn) {
+  if (!Array.isArray(cases)) {
+    cases = [cases]; // eslint-disable-line no-param-reassign
+  }
+  cases.forEach((c) => registry.set(c, importFn));
+}
+
+export async function getDecoder(fileDirectory) {
+  const importFn = registry.get(fileDirectory.Compression);
+  if (!importFn) {
+    throw new Error(`Unknown compression method identifier: ${fileDirectory.Compression}`);
+  }
+  const Decoder = await importFn();
+  return new Decoder(fileDirectory);
+}
+
+// Add default decoders to registry (end-user may override with other implementations)
+addDecoder([undefined, 1], () => import('./raw.js').then((m) => m.default));
+addDecoder(5, () => import('./lzw.js').then((m) => m.default));
+addDecoder(6, () => {
+  throw new Error('old style JPEG compression is not supported.');
+});
+addDecoder(7, () => import('./jpeg.js').then((m) => m.default));
+addDecoder([8, 32946], () => import('./deflate.js').then((m) => m.default));
+addDecoder(32773, () => import('./packbits.js').then((m) => m.default));
+addDecoder(34887, () => import('./lerc.js').then((m) => m.default));
+addDecoder(50001, () => import('./webimage.js').then((m) => m.default));