railbird/react-native-vision-camera
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fix: Error on disabled Frame Processors

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This commit is contained in:
Marc Rousavy 2023-08-24 16:28:16 +02:00
parent 66c012f3b2
commit d27581243d
1 changed files with 32 additions and 15 deletions
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45
src/FrameProcessorPlugins.ts
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@ -31,6 +31,7 @@ interface TVisionCameraProxy {
isSkiaEnabled: boolean; isSkiaEnabled: boolean;
} }
let hasWorklets = false;
let isAsyncContextBusy = { value: false }; let isAsyncContextBusy = { value: false };
let runOnAsyncContext = (_frame: Frame, _func: () => void): void => { let runOnAsyncContext = (_frame: Frame, _func: () => void): void => {
throw new CameraRuntimeError( throw new CameraRuntimeError(
@ -45,19 +46,6 @@ try {
// eslint-disable-next-line @typescript-eslint/no-var-requires // eslint-disable-next-line @typescript-eslint/no-var-requires
const { Worklets } = require('react-native-worklets-core') as typeof TWorklets; const { Worklets } = require('react-native-worklets-core') as typeof TWorklets;
// Install native Frame Processor Runtime Manager
const result = CameraModule.installFrameProcessorBindings() as unknown;
if (result !== true)
throw new CameraRuntimeError('system/frame-processors-unavailable', 'Failed to install Frame Processor JSI bindings!');
// @ts-expect-error global is untyped, it's a C++ host-object
if (global.VisionCameraProxy == null) {
throw new CameraRuntimeError(
'system/frame-processors-unavailable',
'Failed to install VisionCameraProxy. Are Frame Processors properly enabled?',
);
}
isAsyncContextBusy = Worklets.createSharedValue(false); isAsyncContextBusy = Worklets.createSharedValue(false);
const asyncContext = Worklets.createContext('VisionCamera.async'); const asyncContext = Worklets.createContext('VisionCamera.async');
runOnAsyncContext = Worklets.createRunInContextFn((frame: Frame, func: () => void) => { runOnAsyncContext = Worklets.createRunInContextFn((frame: Frame, func: () => void) => {
@ -72,12 +60,41 @@ try {
isAsyncContextBusy.value = false; isAsyncContextBusy.value = false;
} }
}, asyncContext); }, asyncContext);
hasWorklets = true;
} catch (e) { } catch (e) {
// Worklets are not installed, so Frame Processors are disabled. // Worklets are not installed, so Frame Processors are disabled.
} }
let proxy: TVisionCameraProxy = {
isSkiaEnabled: false,
getFrameProcessorPlugin: () => {
throw new CameraRuntimeError('system/frame-processors-unavailable', 'Frame Processors are not enabled!');
},
removeFrameProcessor: () => {
throw new CameraRuntimeError('system/frame-processors-unavailable', 'Frame Processors are not enabled!');
},
setFrameProcessor: () => {
throw new CameraRuntimeError('system/frame-processors-unavailable', 'Frame Processors are not enabled!');
},
};
if (hasWorklets) {
// Install native Frame Processor Runtime Manager
const result = CameraModule.installFrameProcessorBindings() as unknown;
if (result !== true)
throw new CameraRuntimeError('system/frame-processors-unavailable', 'Failed to install Frame Processor JSI bindings!');
// @ts-expect-error global is untyped, it's a C++ host-object // @ts-expect-error global is untyped, it's a C++ host-object
export const VisionCameraProxy = global.VisionCameraProxy as TVisionCameraProxy; proxy = global.VisionCameraProxy as TVisionCameraProxy;
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
if (proxy == null) {
throw new CameraRuntimeError(
'system/frame-processors-unavailable',
'Failed to install VisionCameraProxy. Are Frame Processors properly enabled?',
);
}
}
export const VisionCameraProxy = proxy;
declare global { declare global {
// eslint-disable-next-line no-var // eslint-disable-next-line no-var