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Code Issues Releases Activity

perf(mobile): remove load of thumbnails in the image provider (#17773)

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Remove loading of thumbnail in the image provider

* Removed the load of the thumbnail from the local and remote image provider as they shall provide the image, not the thumbnail. The thumbnail gets provided by the thumbnail provider.
* The thumbnail provider is used as the loadingBuilder and the image provider as the imageProvider. Therefore loading the thumbnail in the image provider loads it a second time which is completely redundant, uses precious time and yields no results.

Co-authored-by: Alex <alex.tran1502@gmail.com>
This commit is contained in:
Toni
2025-04-23 15:55:51 +02:00
committed by GitHub
parent bc5875ba8d
commit 1de2eae12d
2 changed files with 3 additions and 39 deletions
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21
mobile/lib/providers/image/immich_local_image_provider.dart
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@ -53,50 +53,35 @@ class ImmichLocalImageProvider extends ImageProvider<ImmichLocalImageProvider> {
ImageDecoderCallback decode,
StreamController<ImageChunkEvent> chunkEvents,
) async* {
ui.ImmutableBuffer? buffer;
try {
final local = asset.local;
if (local == null) {
throw StateError('Asset ${asset.fileName} has no local data');
}
var thumbBytes = await local
.thumbnailDataWithSize(const ThumbnailSize.square(256), quality: 80);
if (thumbBytes == null) {
throw StateError("Loading thumbnail for ${asset.fileName} failed");
}
buffer = await ui.ImmutableBuffer.fromUint8List(thumbBytes);
thumbBytes = null;
yield await decode(buffer);
buffer = null;
switch (asset.type) {
case AssetType.image:
final File? file = await local.originFile;
if (file == null) {
throw StateError("Opening file for asset ${asset.fileName} failed");
}
buffer = await ui.ImmutableBuffer.fromFilePath(file.path);
final buffer = await ui.ImmutableBuffer.fromFilePath(file.path);
yield await decode(buffer);
buffer = null;
break;
case AssetType.video:
final size = ThumbnailSize(width.ceil(), height.ceil());
thumbBytes = await local.thumbnailDataWithSize(size);
final thumbBytes = await local.thumbnailDataWithSize(size);
if (thumbBytes == null) {
throw StateError("Failed to load preview for ${asset.fileName}");
}
buffer = await ui.ImmutableBuffer.fromUint8List(thumbBytes);
thumbBytes = null;
final buffer = await ui.ImmutableBuffer.fromUint8List(thumbBytes);
yield await decode(buffer);
buffer = null;
break;
default:
throw StateError('Unsupported asset type ${asset.type}');
}
} catch (error, stack) {
log.severe('Error loading local image ${asset.fileName}', error, stack);
buffer?.dispose();
} finally {
chunkEvents.close();
}