optimized decoding

2026-02-13 04:17:56 +03:00 · 2026-01-09 17:04:55 -05:00
parent 4ec0d6df9a
commit 89f9c136ac
23 changed files with 818 additions and 260 deletions
--- a/mobile/ios/Runner.xcodeproj/project.pbxproj
+++ b/mobile/ios/Runner.xcodeproj/project.pbxproj
@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 54;
+	objectVersion = 77;
 	objects = {

 /* Begin PBXBuildFile section */
@@ -29,9 +29,11 @@
 		FAC6F89B2D287C890078CB2F /* ShareExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = FAC6F8902D287C890078CB2F /* ShareExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		FAC6F8B72D287F120078CB2F /* ShareViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = FAC6F8B52D287F120078CB2F /* ShareViewController.swift */; };
 		FAC6F8B92D287F120078CB2F /* MainInterface.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = FAC6F8B32D287F120078CB2F /* MainInterface.storyboard */; };
+		FE5499F32F1197D8006016CB /* LocalImages.g.swift in Sources */ = {isa = PBXBuildFile; fileRef = FE5499F12F1197D8006016CB /* LocalImages.g.swift */; };
+		FE5499F42F1197D8006016CB /* RemoteImages.g.swift in Sources */ = {isa = PBXBuildFile; fileRef = FE5499F22F1197D8006016CB /* RemoteImages.g.swift */; };
+		FE5499F62F11980E006016CB /* LocalImagesImpl.swift in Sources */ = {isa = PBXBuildFile; fileRef = FE5499F52F11980E006016CB /* LocalImagesImpl.swift */; };
+		FE5499F82F1198E2006016CB /* RemoteImagesImpl.swift in Sources */ = {isa = PBXBuildFile; fileRef = FE5499F72F1198DE006016CB /* RemoteImagesImpl.swift */; };
 		FEAFA8732E4D42F4001E47FE /* Thumbhash.swift in Sources */ = {isa = PBXBuildFile; fileRef = FEAFA8722E4D42F4001E47FE /* Thumbhash.swift */; };
-		FED3B1962E253E9B0030FD97 /* ThumbnailsImpl.swift in Sources */ = {isa = PBXBuildFile; fileRef = FED3B1942E253E9B0030FD97 /* ThumbnailsImpl.swift */; };
-		FED3B1972E253E9B0030FD97 /* Thumbnails.g.swift in Sources */ = {isa = PBXBuildFile; fileRef = FED3B1932E253E9B0030FD97 /* Thumbnails.g.swift */; };
 		FEE084F82EC172460045228E /* SQLiteData in Frameworks */ = {isa = PBXBuildFile; productRef = FEE084F72EC172460045228E /* SQLiteData */; };
 		FEE084FB2EC1725A0045228E /* RawStructuredFieldValues in Frameworks */ = {isa = PBXBuildFile; productRef = FEE084FA2EC1725A0045228E /* RawStructuredFieldValues */; };
 		FEE084FD2EC1725A0045228E /* StructuredFieldValues in Frameworks */ = {isa = PBXBuildFile; productRef = FEE084FC2EC1725A0045228E /* StructuredFieldValues */; };
@@ -118,9 +120,11 @@
 		FAC6F8B42D287F120078CB2F /* ShareExtension.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = ShareExtension.entitlements; sourceTree = "<group>"; };
 		FAC6F8B52D287F120078CB2F /* ShareViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareViewController.swift; sourceTree = "<group>"; };
 		FAC7416727DB9F5500C668D8 /* RunnerProfile.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = RunnerProfile.entitlements; sourceTree = "<group>"; };
+		FE5499F12F1197D8006016CB /* LocalImages.g.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocalImages.g.swift; sourceTree = "<group>"; };
+		FE5499F22F1197D8006016CB /* RemoteImages.g.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RemoteImages.g.swift; sourceTree = "<group>"; };
+		FE5499F52F11980E006016CB /* LocalImagesImpl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocalImagesImpl.swift; sourceTree = "<group>"; };
+		FE5499F72F1198DE006016CB /* RemoteImagesImpl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RemoteImagesImpl.swift; sourceTree = "<group>"; };
 		FEAFA8722E4D42F4001E47FE /* Thumbhash.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Thumbhash.swift; sourceTree = "<group>"; };
-		FED3B1932E253E9B0030FD97 /* Thumbnails.g.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Thumbnails.g.swift; sourceTree = "<group>"; };
-		FED3B1942E253E9B0030FD97 /* ThumbnailsImpl.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ThumbnailsImpl.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */

 /* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
@@ -136,15 +140,11 @@
 /* Begin PBXFileSystemSynchronizedRootGroup section */
 		B231F52D2E93A44A00BC45D1 /* Core */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
-			exceptions = (
-			);
 			path = Core;
 			sourceTree = "<group>";
 		};
 		B2CF7F8C2DDE4EBB00744BF6 /* Sync */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
-			exceptions = (
-			);
 			path = Sync;
 			sourceTree = "<group>";
 		};
@@ -158,8 +158,6 @@
 		};
 		FEE084F22EC172080045228E /* Schemas */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
-			exceptions = (
-			);
 			path = Schemas;
 			sourceTree = "<group>";
 		};
@@ -321,9 +319,11 @@
 		FED3B1952E253E9B0030FD97 /* Images */ = {
 			isa = PBXGroup;
 			children = (
+				FE5499F72F1198DE006016CB /* RemoteImagesImpl.swift */,
+				FE5499F52F11980E006016CB /* LocalImagesImpl.swift */,
+				FE5499F12F1197D8006016CB /* LocalImages.g.swift */,
+				FE5499F22F1197D8006016CB /* RemoteImages.g.swift */,
 				FEAFA8722E4D42F4001E47FE /* Thumbhash.swift */,
-				FED3B1932E253E9B0030FD97 /* Thumbnails.g.swift */,
-				FED3B1942E253E9B0030FD97 /* ThumbnailsImpl.swift */,
 			);
 			path = Images;
 			sourceTree = "<group>";
@@ -549,10 +549,14 @@
 			inputFileListPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-resources-${CONFIGURATION}-input-files.xcfilelist",
 			);
+			inputPaths = (
+			);
 			name = "[CP] Copy Pods Resources";
 			outputFileListPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-resources-${CONFIGURATION}-output-files.xcfilelist",
 			);
+			outputPaths = (
+			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
 			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-resources.sh\"\n";
@@ -581,10 +585,14 @@
 			inputFileListPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks-${CONFIGURATION}-input-files.xcfilelist",
 			);
+			inputPaths = (
+			);
 			name = "[CP] Embed Pods Frameworks";
 			outputFileListPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks-${CONFIGURATION}-output-files.xcfilelist",
 			);
+			outputPaths = (
+			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
 			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh\"\n";
@@ -600,12 +608,14 @@
 				65F32F31299BD2F800CE9261 /* BackgroundServicePlugin.swift in Sources */,
 				74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */,
 				B21E34AC2E5B09190031FDB9 /* BackgroundWorker.swift in Sources */,
+				FE5499F32F1197D8006016CB /* LocalImages.g.swift in Sources */,
+				FE5499F62F11980E006016CB /* LocalImagesImpl.swift in Sources */,
+				FE5499F42F1197D8006016CB /* RemoteImages.g.swift in Sources */,
 				B25D377A2E72CA15008B6CA7 /* Connectivity.g.swift in Sources */,
+				FE5499F82F1198E2006016CB /* RemoteImagesImpl.swift in Sources */,
 				FEAFA8732E4D42F4001E47FE /* Thumbhash.swift in Sources */,
 				B25D377C2E72CA26008B6CA7 /* ConnectivityApiImpl.swift in Sources */,
-				FED3B1962E253E9B0030FD97 /* ThumbnailsImpl.swift in Sources */,
 				B21E34AA2E5AFD2B0031FDB9 /* BackgroundWorkerApiImpl.swift in Sources */,
-				FED3B1972E253E9B0030FD97 /* Thumbnails.g.swift in Sources */,
 				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
 				B2BE315F2E5E5229006EEF88 /* BackgroundWorker.g.swift in Sources */,
 				65F32F33299D349D00CE9261 /* BackgroundSyncWorker.swift in Sources */,
--- a/mobile/ios/Runner/AppDelegate.swift
+++ b/mobile/ios/Runner/AppDelegate.swift
@@ -53,7 +53,8 @@ import UIKit
  
  public static func registerPlugins(with engine: FlutterEngine) {
    NativeSyncApiImpl.register(with: engine.registrar(forPlugin: NativeSyncApiImpl.name)!)
-    ThumbnailApiSetup.setUp(binaryMessenger: engine.binaryMessenger, api: ThumbnailApiImpl())
+    LocalImageApiSetup.setUp(binaryMessenger: engine.binaryMessenger, api: LocalImageApiImpl())
+    RemoteImageApiSetup.setUp(binaryMessenger: engine.binaryMessenger, api: RemoteImageApiImpl())
    BackgroundWorkerFgHostApiSetup.setUp(binaryMessenger: engine.binaryMessenger, api: BackgroundWorkerApiImpl())
    ConnectivityApiSetup.setUp(binaryMessenger: engine.binaryMessenger, api: ConnectivityApiImpl())
  }
--- a/mobile/ios/Runner/Images/LocalImages.g.swift
+++ b/mobile/ios/Runner/Images/LocalImages.g.swift
@@ -47,41 +47,41 @@ private func nilOrValue<T>(_ value: Any?) -> T? {
 }


-private class ThumbnailsPigeonCodecReader: FlutterStandardReader {
+private class LocalImagesPigeonCodecReader: FlutterStandardReader {
 }

-private class ThumbnailsPigeonCodecWriter: FlutterStandardWriter {
+private class LocalImagesPigeonCodecWriter: FlutterStandardWriter {
 }

-private class ThumbnailsPigeonCodecReaderWriter: FlutterStandardReaderWriter {
+private class LocalImagesPigeonCodecReaderWriter: FlutterStandardReaderWriter {
  override func reader(with data: Data) -> FlutterStandardReader {
-    return ThumbnailsPigeonCodecReader(data: data)
+    return LocalImagesPigeonCodecReader(data: data)
  }

  override func writer(with data: NSMutableData) -> FlutterStandardWriter {
-    return ThumbnailsPigeonCodecWriter(data: data)
+    return LocalImagesPigeonCodecWriter(data: data)
  }
 }

-class ThumbnailsPigeonCodec: FlutterStandardMessageCodec, @unchecked Sendable {
-  static let shared = ThumbnailsPigeonCodec(readerWriter: ThumbnailsPigeonCodecReaderWriter())
+class LocalImagesPigeonCodec: FlutterStandardMessageCodec, @unchecked Sendable {
+  static let shared = LocalImagesPigeonCodec(readerWriter: LocalImagesPigeonCodecReaderWriter())
 }


 /// Generated protocol from Pigeon that represents a handler of messages from Flutter.
-protocol ThumbnailApi {
+protocol LocalImageApi {
  func requestImage(assetId: String, requestId: Int64, width: Int64, height: Int64, isVideo: Bool, completion: @escaping (Result<[String: Int64], Error>) -> Void)
-  func cancelImageRequest(requestId: Int64) throws
+  func cancelRequest(requestId: Int64) throws
  func getThumbhash(thumbhash: String, completion: @escaping (Result<[String: Int64], Error>) -> Void)
 }

 /// Generated setup class from Pigeon to handle messages through the `binaryMessenger`.
-class ThumbnailApiSetup {
-  static var codec: FlutterStandardMessageCodec { ThumbnailsPigeonCodec.shared }
-  /// Sets up an instance of `ThumbnailApi` to handle messages through the `binaryMessenger`.
-  static func setUp(binaryMessenger: FlutterBinaryMessenger, api: ThumbnailApi?, messageChannelSuffix: String = "") {
+class LocalImageApiSetup {
+  static var codec: FlutterStandardMessageCodec { LocalImagesPigeonCodec.shared }
+  /// Sets up an instance of `LocalImageApi` to handle messages through the `binaryMessenger`.
+  static func setUp(binaryMessenger: FlutterBinaryMessenger, api: LocalImageApi?, messageChannelSuffix: String = "") {
    let channelSuffix = messageChannelSuffix.count > 0 ? ".\(messageChannelSuffix)" : ""
-    let requestImageChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.ThumbnailApi.requestImage\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    let requestImageChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.LocalImageApi.requestImage\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
    if let api = api {
      requestImageChannel.setMessageHandler { message, reply in
        let args = message as! [Any?]
@@ -102,22 +102,22 @@ class ThumbnailApiSetup {
    } else {
      requestImageChannel.setMessageHandler(nil)
    }
-    let cancelImageRequestChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.ThumbnailApi.cancelImageRequest\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    let cancelRequestChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.LocalImageApi.cancelRequest\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
    if let api = api {
-      cancelImageRequestChannel.setMessageHandler { message, reply in
+      cancelRequestChannel.setMessageHandler { message, reply in
        let args = message as! [Any?]
        let requestIdArg = args[0] as! Int64
        do {
-          try api.cancelImageRequest(requestId: requestIdArg)
+          try api.cancelRequest(requestId: requestIdArg)
          reply(wrapResult(nil))
        } catch {
          reply(wrapError(error))
        }
      }
    } else {
-      cancelImageRequestChannel.setMessageHandler(nil)
+      cancelRequestChannel.setMessageHandler(nil)
    }
-    let getThumbhashChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.ThumbnailApi.getThumbhash\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    let getThumbhashChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.LocalImageApi.getThumbhash\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
    if let api = api {
      getThumbhashChannel.setMessageHandler { message, reply in
        let args = message as! [Any?]
--- a/mobile/ios/Runner/Images/LocalImagesImpl.swift
+++ b/mobile/ios/Runner/Images/LocalImagesImpl.swift
@@ -1,9 +1,9 @@
-import CryptoKit
+import Accelerate
 import Flutter
 import MobileCoreServices
 import Photos

-class Request {
+class LocalImageRequest {
  weak var workItem: DispatchWorkItem?
  var isCancelled = false
  let callback: (Result<[String: Int64], any Error>) -> Void
@@ -13,7 +13,7 @@ class Request {
  }
 }

-class ThumbnailApiImpl: ThumbnailApi {
+class LocalImageApiImpl: LocalImageApi {
  private static let imageManager = PHImageManager.default()
  private static let fetchOptions = {
    let fetchOptions = PHFetchOptions()
@@ -36,9 +36,14 @@ class ThumbnailApiImpl: ThumbnailApi {
  private static let cancelQueue = DispatchQueue(label: "thumbnail.cancellation", qos: .default)
  private static let processingQueue = DispatchQueue(label: "thumbnail.processing", qos: .userInteractive, attributes: .concurrent)
  
-  private static let rgbColorSpace = CGColorSpaceCreateDeviceRGB()
-  private static let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue).rawValue
-  private static var requests = [Int64: Request]()
+  private static var rgbaFormat = vImage_CGImageFormat(
+    bitsPerComponent: 8,
+    bitsPerPixel: 32,
+    colorSpace: CGColorSpaceCreateDeviceRGB(),
+    bitmapInfo: CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue),
+    renderingIntent: .defaultIntent
+  )!
+  private static var requests = [Int64: LocalImageRequest]()
  private static let cancelledResult = Result<[String: Int64], any Error>.success([:])
  private static let concurrencySemaphore = DispatchSemaphore(value: ProcessInfo.processInfo.activeProcessorCount * 2)
  private static let assetCache = {
@@ -46,37 +51,19 @@ class ThumbnailApiImpl: ThumbnailApi {
    assetCache.countLimit = 10000
    return assetCache
  }()
-  private static let activitySemaphore = DispatchSemaphore(value: 1)
-  private static let willResignActiveObserver = NotificationCenter.default.addObserver(
-    forName: UIApplication.willResignActiveNotification,
-    object: nil,
-    queue: .main
-  ) { _ in
-    processingQueue.suspend()
-    activitySemaphore.wait()
-  }
-  private static let didBecomeActiveObserver = NotificationCenter.default.addObserver(
-    forName: UIApplication.didBecomeActiveNotification,
-    object: nil,
-    queue: .main
-  ) { _ in
-    processingQueue.resume()
-    activitySemaphore.signal()
-  }
  
  func getThumbhash(thumbhash: String, completion: @escaping (Result<[String : Int64], any Error>) -> Void) {
    Self.processingQueue.async {
      guard let data = Data(base64Encoded: thumbhash)
      else { return completion(.failure(PigeonError(code: "", message: "Invalid base64 string: \(thumbhash)", details: nil)))}
-
+      
      let (width, height, pointer) = thumbHashToRGBA(hash: data)
-      self.waitForActiveState()
      completion(.success(["pointer": Int64(Int(bitPattern: pointer.baseAddress)), "width": Int64(width), "height": Int64(height)]))
    }
  }
  
  func requestImage(assetId: String, requestId: Int64, width: Int64, height: Int64, isVideo: Bool, completion: @escaping (Result<[String: Int64], any Error>) -> Void) {
-    let request = Request(callback: completion)
+    let request = LocalImageRequest(callback: completion)
    let item = DispatchWorkItem {
      if request.isCancelled {
        return completion(Self.cancelledResult)
@@ -93,7 +80,7 @@ class ThumbnailApiImpl: ThumbnailApi {
      
      guard let asset = Self.requestAsset(assetId: assetId)
      else {
-        Self.removeRequest(requestId: requestId)
+        Self.remove(requestId: requestId)
        completion(.failure(PigeonError(code: "", message: "Could not get asset data for \(assetId)", details: nil)))
        return
      }
@@ -119,70 +106,54 @@ class ThumbnailApiImpl: ThumbnailApi {
      
      guard let image = image,
            let cgImage = image.cgImage else {
-        Self.removeRequest(requestId: requestId)
+        Self.remove(requestId: requestId)
        return completion(.failure(PigeonError(code: "", message: "Could not get pixel data for \(assetId)", details: nil)))
      }
      
-      let pointer = UnsafeMutableRawPointer.allocate(
-        byteCount: Int(cgImage.width) * Int(cgImage.height) * 4,
-        alignment: MemoryLayout<UInt8>.alignment
-      )
-      
      if request.isCancelled {
-        pointer.deallocate()
        return completion(Self.cancelledResult)
      }
      
-      guard let context = CGContext(
-        data: pointer,
-        width: cgImage.width,
-        height: cgImage.height,
-        bitsPerComponent: 8,
-        bytesPerRow: cgImage.width * 4,
-        space: Self.rgbColorSpace,
-        bitmapInfo: Self.bitmapInfo
-      ) else {
-        pointer.deallocate()
-        Self.removeRequest(requestId: requestId)
-        return completion(.failure(PigeonError(code: "", message: "Could not create context for \(assetId)", details: nil)))
+      do {
+        let buffer = try vImage_Buffer(cgImage: cgImage, format: Self.rgbaFormat)
+        
+        if request.isCancelled {
+          buffer.free()
+          return completion(Self.cancelledResult)
+        }
+        
+        request.callback(.success([
+          "pointer": Int64(Int(bitPattern: buffer.data)),
+          "width": Int64(buffer.width),
+          "height": Int64(buffer.height),
+          "rowBytes": Int64(buffer.rowBytes)
+        ]))
+        print("Successful response for \(requestId)")
+        Self.remove(requestId: requestId)
+      } catch {
+        Self.remove(requestId: requestId)
+        return completion(.failure(PigeonError(code: "", message: "Failed to convert image for \(assetId): \(error)", details: nil)))
      }
-      
-      if request.isCancelled {
-        pointer.deallocate()
-        return completion(Self.cancelledResult)
-      }
-      
-      context.interpolationQuality = .none
-      context.draw(cgImage, in: CGRect(x: 0, y: 0, width: cgImage.width, height: cgImage.height))
-      
-      if request.isCancelled {
-        pointer.deallocate()
-        return completion(Self.cancelledResult)
-      }
-      
-      self.waitForActiveState()
-      completion(.success(["pointer": Int64(Int(bitPattern: pointer)), "width": Int64(cgImage.width), "height": Int64(cgImage.height)]))
-      Self.removeRequest(requestId: requestId)
    }
    
    request.workItem = item
-    Self.addRequest(requestId: requestId, request: request)
+    Self.add(requestId: requestId, request: request)
    Self.processingQueue.async(execute: item)
  }
  
-  func cancelImageRequest(requestId: Int64) {
-    Self.cancelRequest(requestId: requestId)
+  func cancelRequest(requestId: Int64) {
+    Self.cancel(requestId: requestId)
  }
  
-  private static func addRequest(requestId: Int64, request: Request) -> Void {
+  private static func add(requestId: Int64, request: LocalImageRequest) -> Void {
    requestQueue.sync { requests[requestId] = request }
  }
  
-  private static func removeRequest(requestId: Int64) -> Void {
+  private static func remove(requestId: Int64) -> Void {
    requestQueue.sync { requests[requestId] = nil }
  }
  
-  private static func cancelRequest(requestId: Int64) -> Void {
+  private static func cancel(requestId: Int64) -> Void {
    requestQueue.async {
      guard let request = requests.removeValue(forKey: requestId) else { return }
      request.isCancelled = true
@@ -203,9 +174,4 @@ class ThumbnailApiImpl: ThumbnailApi {
    assetQueue.async { assetCache.setObject(asset, forKey: assetId as NSString) }
    return asset
  }
-  
-  func waitForActiveState() {
-    Self.activitySemaphore.wait()
-    Self.activitySemaphore.signal()
-  }
 }
--- a/mobile/ios/Runner/Images/RemoteImages.g.swift
+++ b/mobile/ios/Runner/Images/RemoteImages.g.swift
@@ -0,0 +1,118 @@
+// Autogenerated from Pigeon (v26.0.2), do not edit directly.
+// See also: https://pub.dev/packages/pigeon
+
+import Foundation
+
+#if os(iOS)
+  import Flutter
+#elseif os(macOS)
+  import FlutterMacOS
+#else
+  #error("Unsupported platform.")
+#endif
+
+private func wrapResult(_ result: Any?) -> [Any?] {
+  return [result]
+}
+
+private func wrapError(_ error: Any) -> [Any?] {
+  if let pigeonError = error as? PigeonError {
+    return [
+      pigeonError.code,
+      pigeonError.message,
+      pigeonError.details,
+    ]
+  }
+  if let flutterError = error as? FlutterError {
+    return [
+      flutterError.code,
+      flutterError.message,
+      flutterError.details,
+    ]
+  }
+  return [
+    "\(error)",
+    "\(type(of: error))",
+    "Stacktrace: \(Thread.callStackSymbols)",
+  ]
+}
+
+private func isNullish(_ value: Any?) -> Bool {
+  return value is NSNull || value == nil
+}
+
+private func nilOrValue<T>(_ value: Any?) -> T? {
+  if value is NSNull { return nil }
+  return value as! T?
+}
+
+
+private class RemoteImagesPigeonCodecReader: FlutterStandardReader {
+}
+
+private class RemoteImagesPigeonCodecWriter: FlutterStandardWriter {
+}
+
+private class RemoteImagesPigeonCodecReaderWriter: FlutterStandardReaderWriter {
+  override func reader(with data: Data) -> FlutterStandardReader {
+    return RemoteImagesPigeonCodecReader(data: data)
+  }
+
+  override func writer(with data: NSMutableData) -> FlutterStandardWriter {
+    return RemoteImagesPigeonCodecWriter(data: data)
+  }
+}
+
+class RemoteImagesPigeonCodec: FlutterStandardMessageCodec, @unchecked Sendable {
+  static let shared = RemoteImagesPigeonCodec(readerWriter: RemoteImagesPigeonCodecReaderWriter())
+}
+
+
+/// Generated protocol from Pigeon that represents a handler of messages from Flutter.
+protocol RemoteImageApi {
+  func requestImage(url: String, headers: [String: String], requestId: Int64, completion: @escaping (Result<[String: Int64], Error>) -> Void)
+  func cancelRequest(requestId: Int64) throws
+}
+
+/// Generated setup class from Pigeon to handle messages through the `binaryMessenger`.
+class RemoteImageApiSetup {
+  static var codec: FlutterStandardMessageCodec { RemoteImagesPigeonCodec.shared }
+  /// Sets up an instance of `RemoteImageApi` to handle messages through the `binaryMessenger`.
+  static func setUp(binaryMessenger: FlutterBinaryMessenger, api: RemoteImageApi?, messageChannelSuffix: String = "") {
+    let channelSuffix = messageChannelSuffix.count > 0 ? ".\(messageChannelSuffix)" : ""
+    let requestImageChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.RemoteImageApi.requestImage\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      requestImageChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let urlArg = args[0] as! String
+        let headersArg = args[1] as! [String: String]
+        let requestIdArg = args[2] as! Int64
+        api.requestImage(url: urlArg, headers: headersArg, requestId: requestIdArg) { result in
+          switch result {
+          case .success(let res):
+            reply(wrapResult(res))
+          case .failure(let error):
+            reply(wrapError(error))
+          }
+        }
+      }
+    } else {
+      requestImageChannel.setMessageHandler(nil)
+    }
+    let cancelRequestChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.immich_mobile.RemoteImageApi.cancelRequest\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      cancelRequestChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let requestIdArg = args[0] as! Int64
+        do {
+          try api.cancelRequest(requestId: requestIdArg)
+          reply(wrapResult(nil))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      cancelRequestChannel.setMessageHandler(nil)
+    }
+  }
+}
--- a/mobile/ios/Runner/Images/RemoteImagesImpl.swift
+++ b/mobile/ios/Runner/Images/RemoteImagesImpl.swift
@@ -0,0 +1,181 @@
+import Accelerate
+import Flutter
+import MobileCoreServices
+import Photos
+
+class RemoteImageRequest {
+  weak var task: URLSessionDataTask?
+  var isCancelled = false
+  let imageSource: CGImageSource
+  var data: CFMutableData?
+  let completion: (Result<[String: Int64], any Error>) -> Void
+  
+  init(task: URLSessionDataTask, imageSource: CGImageSource, completion: @escaping (Result<[String: Int64], any Error>) -> Void) {
+    self.task = task
+    self.imageSource = imageSource
+    self.data = nil
+    self.completion = completion
+  }
+}
+
+class RemoteImageApiImpl: NSObject, RemoteImageApi {
+  private static let delegate = RemoteImageApiDelegate()
+  static let session = {
+    let config = URLSessionConfiguration.default
+    let thumbnailPath = FileManager.default.temporaryDirectory.appendingPathComponent("thumbnails", isDirectory: true)
+    try! FileManager.default.createDirectory(at: thumbnailPath, withIntermediateDirectories: true)
+    config.urlCache = URLCache(
+      memoryCapacity: 0,
+      diskCapacity: 10 << 20,
+      directory: thumbnailPath
+    )
+    config.httpMaximumConnectionsPerHost = 16
+    return URLSession(configuration: config, delegate: delegate, delegateQueue: nil)
+  }()
+  
+  func requestImage(url: String, headers: [String : String], requestId: Int64, completion: @escaping (Result<[String : Int64], any Error>) -> Void) {
+    print("Got image request \(requestId) for \(url)")
+    var urlRequest = URLRequest(url: URL(string: url)!)
+    for (key, value) in headers {
+      urlRequest.setValue(value, forHTTPHeaderField: key)
+    }
+    let task = Self.session.dataTask(with: urlRequest)
+    task.taskDescription = String(requestId)
+    
+    let imageRequest = RemoteImageRequest(
+      task: task,
+      imageSource: CGImageSourceCreateIncremental(
+        [kCGImageSourceShouldCache: false] as CFDictionary),
+      completion: completion
+    )
+    Self.delegate.add(requestId: requestId, request: imageRequest)
+    
+    task.resume()
+    print("Started task for \(requestId)")
+  }
+  
+  func cancelRequest(requestId: Int64) {
+    print("Cancelling task for \(requestId)")
+    Self.delegate.cancel(requestId: requestId)
+  }
+}
+
+class RemoteImageApiDelegate: NSObject, URLSessionDataDelegate {
+  private static let requestQueue = DispatchQueue(label: "thumbnail.requests", qos: .userInitiated)
+  private static var rgbaFormat = vImage_CGImageFormat(
+    bitsPerComponent: 8,
+    bitsPerPixel: 32,
+    colorSpace: CGColorSpaceCreateDeviceRGB(),
+    bitmapInfo: CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue),
+    renderingIntent: .perceptual
+  )!
+  private static var requests = [Int64: RemoteImageRequest]()
+  private static let cancelledResult = Result<[String: Int64], any Error>.success([:])
+  
+  func urlSession(
+    _ session: URLSession, dataTask: URLSessionDataTask,
+    didReceive response: URLResponse,
+    completionHandler: @escaping (URLSession.ResponseDisposition) -> Void
+  ) {
+    guard let taskDescription = dataTask.taskDescription,
+          let requestId = Int64(taskDescription),
+          let request = (Self.requestQueue.sync { Self.requests[requestId] })
+    else {
+      return completionHandler(.cancel)
+    }
+    
+    let capacity = max(Int(response.expectedContentLength), 0)
+    request.data = CFDataCreateMutable(nil, capacity)
+    
+    completionHandler(.allow)
+  }
+  
+  func urlSession(_ session: URLSession, dataTask: URLSessionDataTask,
+                  didReceive data: Data) {
+    print("Got data")
+    guard let taskDescription = dataTask.taskDescription,
+          let requestId = Int64(taskDescription),
+          let request = get(requestId: requestId),
+          let accumulatedData = request.data
+    else { return }
+    
+    data.withUnsafeBytes { bytes in
+      CFDataAppendBytes(request.data, bytes.bindMemory(to: UInt8.self).baseAddress, data.count)
+    }
+    CGImageSourceUpdateData(request.imageSource, accumulatedData, false)
+  }
+  
+  func urlSession(_ session: URLSession, task: URLSessionTask,
+                  didCompleteWithError error: Error?) {
+    print("Task ended")
+    guard let taskDescription = task.taskDescription,
+          let requestId = Int64(taskDescription),
+          let request = get(requestId: requestId),
+          let accumulatedData = request.data
+    else { return }
+    
+    if let error = error {
+      print("Task failed for \(requestId): \(error)")
+      remove(requestId: requestId)
+      return request.completion(.failure(error))
+    }
+    
+    CGImageSourceUpdateData(request.imageSource, accumulatedData, true)
+    
+    let options = [kCGImageSourceShouldCacheImmediately: true] as CFDictionary
+    guard let cgImage = CGImageSourceCreateImageAtIndex(request.imageSource, 0, nil) else {
+      print("No image for \(requestId)")
+      remove(requestId: requestId)
+      return request.completion(.failure(PigeonError(code: "", message: "Failed to decode image for request \(requestId)", details: nil)))
+    }
+    print("Got image for \(requestId)")
+    
+    if request.isCancelled {
+      remove(requestId: requestId)
+      return request.completion(Self.cancelledResult)
+    }
+    
+    do {
+      let buffer = try vImage_Buffer(cgImage: cgImage, format: Self.rgbaFormat)
+      
+      if request.isCancelled {
+        buffer.free()
+        remove(requestId: requestId)
+        return request.completion(Self.cancelledResult)
+      }
+      
+      request.completion(
+        .success([
+          "pointer": Int64(Int(bitPattern: buffer.data)),
+          "width": Int64(buffer.width),
+          "height": Int64(buffer.height),
+          "rowBytes": Int64(buffer.rowBytes),
+        ]))
+      print("Successful response for \(requestId)")
+      
+      remove(requestId: requestId)
+    } catch {
+      print("vImage conversion failed for \(requestId): \(error)")
+      remove(requestId: requestId)
+      return request.completion(.failure(PigeonError(code: "", message: "Failed to convert image for request \(requestId): \(error)", details: nil)))
+    }
+  }
+  
+  func get(requestId: Int64) -> RemoteImageRequest? {
+    Self.requestQueue.sync { Self.requests[requestId] }
+  }
+  
+  func add(requestId: Int64, request: RemoteImageRequest) -> Void {
+    Self.requestQueue.sync { Self.requests[requestId] = request }
+  }
+  
+  func remove(requestId: Int64) -> Void {
+    Self.requestQueue.sync { Self.requests[requestId] = nil }
+  }
+  
+  func cancel(requestId: Int64) -> Void {
+    guard let request = (Self.requestQueue.sync { Self.requests[requestId] }) else { return }
+    request.isCancelled = true
+    request.task?.cancel()
+  }
+}