44 lines
954 B
Dart
44 lines
954 B
Dart
import 'dart:typed_data';
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import 'dart:ui';
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import 'package:fast_equatable/hash.dart';
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import 'package:lensai/domain/entities/equatable_image.dart';
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import 'package:lensai/utils/lru_cache.dart';
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final _cache = LRUCache<int, EquatableImage>(100);
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Future<EquatableImage?> tryDecodeImage(
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Uint8List bytes, {
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int? targetWidth,
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int? targetHeight,
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bool allowUpscaling = true,
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}) async {
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final digest = secureHash(bytes);
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final cached = _cache.get(digest);
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if (cached != null) {
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return cached;
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}
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try {
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final codec = await instantiateImageCodec(
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bytes,
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targetWidth: targetWidth,
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targetHeight: targetHeight,
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allowUpscaling: allowUpscaling,
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);
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final frameInfo = await codec.getNextFrame();
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final image = EquatableImage(frameInfo.image, hash: digest);
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if (image.value.width > 0) {
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_cache.set(digest, image);
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return image;
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}
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} catch (e) {
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//swallow
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}
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return null;
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}
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