ente/mobile/lib/services/isolate_functions.dart
2024-09-02 15:44:24 +02:00

71 lines
2.4 KiB
Dart

import "dart:io" show File;
import 'dart:typed_data' show Uint8List;
import "package:logging/logging.dart";
import "package:photos/models/ml/face/box.dart";
import "package:photos/services/machine_learning/ml_model.dart";
import "package:photos/services/machine_learning/semantic_search/clip/clip_text_encoder.dart";
import "package:photos/services/machine_learning/semantic_search/clip/clip_text_tokenizer.dart";
import "package:photos/utils/image_ml_util.dart";
enum IsolateOperation {
/// [MLComputer]
generateFaceThumbnails,
/// [MLComputer]
loadModel,
/// [MLComputer]
initializeClipTokenizer,
/// [MLComputer]
runClipText,
/// [MLComputer]
testLogging,
}
/// WARNING: Only return primitives unless you know the method is only going
/// to be used on regular isolates as opposed to DartUI and Flutter isolates
/// https://api.flutter.dev/flutter/dart-isolate/SendPort/send.html
Future<dynamic> isolateFunction(
IsolateOperation function,
Map<String, dynamic> args,
) async {
switch (function) {
// Cases for MLComputer
case IsolateOperation.generateFaceThumbnails:
final imagePath = args['imagePath'] as String;
final Uint8List imageData = await File(imagePath).readAsBytes();
final faceBoxesJson = args['faceBoxesList'] as List<Map<String, dynamic>>;
final List<FaceBox> faceBoxes =
faceBoxesJson.map((json) => FaceBox.fromJson(json)).toList();
final List<Uint8List> results = await generateFaceThumbnailsUsingCanvas(
imageData,
faceBoxes,
);
return List.from(results);
case IsolateOperation.loadModel:
final modelName = args['modelName'] as String;
final modelPath = args['modelPath'] as String;
final int address = await MlModel.loadModel(
modelName,
modelPath,
);
return address;
case IsolateOperation.initializeClipTokenizer:
final vocabPath = args["vocabPath"] as String;
await ClipTextTokenizer.instance.init(vocabPath);
return true;
case IsolateOperation.runClipText:
//TODO:lau check logging here
final textEmbedding = await ClipTextEncoder.predict(args);
return List<double>.from(textEmbedding, growable: false);
case IsolateOperation.testLogging:
final logger = Logger('XXX MLComputerTestLogging');
logger.info("XXX logging from isolate is working!!!");
throw Exception("XXX logging from isolate testing exception handling");
return true;
}
}