react-native-vision-camera/lib/third-party/VisionCameraWorkletsProxy.js

VisionCamera is the fastest and most powerful Camera for react-native.

// TODO: The worklets implementation (`VisionCameraWorkletsProxy`) is kinda loosely coupled here, and untyped.
//       Maybe it is worth considering renaming `react-native-vision-camera-worklets` to
//       `react-native-vision-camera-frame-processors` and this package then contains `useFrameOutput(..)` or
//       `AsyncRunner`?
function isRuntimeThreadProvider(object) {
    if (object == null || typeof object !== 'object')
        return false;
    return (Object.hasOwn(object, 'createAsyncRunner') &&
        Object.hasOwn(object, 'createRuntimeForThread'));
}
let _provider;
function getProvider() {
    if (_provider == null) {
        try {
            const module = require('react-native-vision-camera-worklets');
            const provider = module.provider;
            if (!isRuntimeThreadProvider(provider)) {
                throw new Error('The module `react-native-vision-camera-worklets` does not export a `provider: RuntimeThreadProvider`!');
            }
            _provider = provider;
        }
        catch {
            throw new Error('Cannot use Frame Processors - `react-native-vision-camera-worklets` is not installed!');
        }
    }
    return _provider;
}
/**
 * A lazily-loaded {@linkcode RuntimeThreadProvider} backed by
 * `react-native-vision-camera-worklets`.
 *
 * If react-native-vision-camera-worklets is not installed, accessing anything
 * on {@linkcode VisionCameraWorkletsProxy} will throw.
 */
export const VisionCameraWorkletsProxy = {
    createAsyncRunner: () => getProvider().createAsyncRunner(),
    createRuntimeForThread: (thread) => getProvider().createRuntimeForThread(thread),
    bindUIUpdatesToController: (value, controller, funcName) => getProvider().bindUIUpdatesToController(value, controller, funcName),
};