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node_modules/@react-native/assets-registry/README.md

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+# @react-native/assets-registry
+
+[![Version][version-badge]][package]
+
+## Installation
+
+```
+yarn add --dev @react-native/assets-registry
+```
+
+*Note: We're using `yarn` to install deps. Feel free to change commands to use `npm` 3+ and `npx` if you like*
+
+[version-badge]: https://img.shields.io/npm/v/@react-native/assets-registry?style=flat-square
+[package]: https://www.npmjs.com/package/@react-native/assets-registry
+
+## Testing
+
+To run the tests in this package, run the following commands from the React Native root folder:
+
+1. `yarn` to install the dependencies. You just need to run this once
+2. `yarn jest packages/assets`.

node_modules/@react-native/assets-registry/package.json

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+{
+  "name": "@react-native/assets-registry",
+  "version": "0.83.2",
+  "description": "Asset support code for React Native.",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/facebook/react-native.git",
+    "directory": "packages/assets"
+  },
+  "homepage": "https://github.com/facebook/react-native/tree/HEAD/packages/assets#readme",
+  "keywords": [
+    "assets",
+    "registry",
+    "react-native",
+    "support"
+  ],
+  "bugs": "https://github.com/facebook/react-native/issues",
+  "engines": {
+    "node": ">= 20.19.4"
+  },
+  "files": [
+    "path-support.js",
+    "registry.js",
+    "README.md",
+    "!**/__docs__/**",
+    "!**/__fixtures__/**",
+    "!**/__mocks__/**",
+    "!**/__tests__/**"
+  ]
+}

node_modules/@react-native/assets-registry/path-support.js

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+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ */
+
+'use strict';
+
+/*:: import type {PackagerAsset} from './registry.js'; */
+
+const androidScaleSuffix = {
+  '0.75': 'ldpi',
+  '1': 'mdpi',
+  '1.5': 'hdpi',
+  '2': 'xhdpi',
+  '3': 'xxhdpi',
+  '4': 'xxxhdpi',
+};
+
+const ANDROID_BASE_DENSITY = 160;
+
+/**
+ * FIXME: using number to represent discrete scale numbers is fragile in essence because of
+ * floating point numbers imprecision.
+ */
+function getAndroidAssetSuffix(scale /*: number */) /*: string */ {
+  if (scale.toString() in androidScaleSuffix) {
+    // $FlowFixMe[invalid-computed-prop]
+    return androidScaleSuffix[scale.toString()];
+  }
+  // NOTE: Android Gradle Plugin does not fully support the nnndpi format.
+  // See https://issuetracker.google.com/issues/72884435
+  if (Number.isFinite(scale) && scale > 0) {
+    return Math.round(scale * ANDROID_BASE_DENSITY) + 'dpi';
+  }
+  throw new Error('no such scale ' + scale.toString());
+}
+
+// See https://developer.android.com/guide/topics/resources/drawable-resource.html
+const drawableFileTypes = new Set([
+  'gif',
+  'jpeg',
+  'jpg',
+  'ktx',
+  'png',
+  'webp',
+  'xml',
+]);
+
+function getAndroidResourceFolderName(
+  asset /*: PackagerAsset */,
+  scale /*: number */,
+) /*: string */ {
+  if (!drawableFileTypes.has(asset.type)) {
+    return 'raw';
+  }
+  const suffix = getAndroidAssetSuffix(scale);
+  if (!suffix) {
+    throw new Error(
+      "Don't know which android drawable suffix to use for scale: " +
+        scale +
+        '\nAsset: ' +
+        JSON.stringify(asset, null, '\t') +
+        '\nPossible scales are:' +
+        JSON.stringify(androidScaleSuffix, null, '\t'),
+    );
+  }
+  return 'drawable-' + suffix;
+}
+
+function getAndroidResourceIdentifier(
+  asset /*: PackagerAsset */,
+) /*: string */ {
+  return (getBasePath(asset) + '/' + asset.name)
+    .toLowerCase()
+    .replace(/\//g, '_') // Encode folder structure in file name
+    .replace(/([^a-z0-9_])/g, '') // Remove illegal chars
+    .replace(/^(?:assets|assetsunstable_path)_/, ''); // Remove "assets_" or "assetsunstable_path_" prefix
+}
+
+function getBasePath(asset /*: PackagerAsset */) /*: string */ {
+  const basePath = asset.httpServerLocation;
+  return basePath.startsWith('/') ? basePath.slice(1) : basePath;
+}
+
+module.exports = {
+  getAndroidResourceFolderName,
+  getAndroidResourceIdentifier,
+  getBasePath,
+};

node_modules/@react-native/assets-registry/registry.js

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+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ */
+
+'use strict';
+
+/*::
+export type AssetDestPathResolver = 'android' | 'generic';
+
+export type PackagerAsset = {
+  +__packager_asset: boolean,
+  +fileSystemLocation: string,
+  +httpServerLocation: string,
+  +width: ?number,
+  +height: ?number,
+  +scales: Array<number>,
+  +hash: string,
+  +name: string,
+  +type: string,
+  +resolver?: AssetDestPathResolver,
+  ...
+};
+*/
+
+const assets /*: Array<PackagerAsset> */ = [];
+
+function registerAsset(asset /*: PackagerAsset */) /*: number */ {
+  // `push` returns new array length, so the first asset will
+  // get id 1 (not 0) to make the value truthy
+  return assets.push(asset);
+}
+
+function getAssetByID(assetId /*: number */) /*: PackagerAsset */ {
+  return assets[assetId - 1];
+}
+
+// eslint-disable-next-line @react-native/monorepo/no-commonjs-exports
+module.exports = {registerAsset, getAssetByID};