Fixes with Xcode 9 (#14)

* Update with Xcode 9

* Fixed AVFoundation changes

* Fixed changes of NSAttriubtedString

* Fixed MPSCNN sample for iOS 11 / Swift 4 / Xcode 9

* Fixed more

* more fixes

* Error: the descriptor must be configured with MTLStorageModePrivate'

* commented out

* updated .gitignore

* Fixed build errors

* Fixed build errors

* Disabled "Swift 3 @objc inference"

.gitignore

@@ -2,6 +2,8 @@
 #
 # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
 
+iOS-10-Sampler/Resources/network_params/logos
+
 ## Build generated
 build/
 DerivedData/

iOS-10-Sampler.xcodeproj/project.pbxproj

@@ -1277,7 +1277,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0800;
-				LastUpgradeCheck = 0810;
+				LastUpgradeCheck = 0900;
 				ORGANIZATIONNAME = "Shuichi Tsutsumi";
 				TargetAttributes = {
 					8A1CC38B1D7AC22E00562709 = {
@@ -1288,17 +1288,20 @@
 					8AB430541D7A6B4900A3BD98 = {
 						CreatedOnToolsVersion = 8.0;
 						DevelopmentTeam = 9Z86A4AWDE;
+						LastSwiftMigration = 0900;
 						ProvisioningStyle = Automatic;
 					};
 					8AB430681D7A6B4A00A3BD98 = {
 						CreatedOnToolsVersion = 8.0;
 						DevelopmentTeam = 9Z86A4AWDE;
+						LastSwiftMigration = 0900;
 						ProvisioningStyle = Automatic;
 						TestTargetID = 8AB430541D7A6B4900A3BD98;
 					};
 					8AB430731D7A6B4A00A3BD98 = {
 						CreatedOnToolsVersion = 8.0;
 						DevelopmentTeam = 9Z86A4AWDE;
+						LastSwiftMigration = 0900;
 						ProvisioningStyle = Automatic;
 						TestTargetID = 8AB430541D7A6B4900A3BD98;
 					};
@@ -1717,15 +1720,21 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_SUSPICIOUS_MOVES = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
@@ -1767,15 +1776,21 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_SUSPICIOUS_MOVES = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
@@ -1811,7 +1826,8 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.shu223.iOS-10-Sampler";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "iOS-10-Sampler/iOS10Sampler-Bridging-Header.h";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -1825,7 +1841,8 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.shu223.iOS-10-Sampler";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "iOS-10-Sampler/iOS10Sampler-Bridging-Header.h";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -1839,7 +1856,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.shu223.iOS-10-SamplerTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_VERSION = 4.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/iOS-10-Sampler.app/iOS-10-Sampler";
 			};
 			name = Debug;
@@ -1854,7 +1872,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.shu223.iOS-10-SamplerTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_VERSION = 4.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/iOS-10-Sampler.app/iOS-10-Sampler";
 			};
 			name = Release;
@@ -1868,7 +1887,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.shu223.iOS-10-SamplerUITests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_VERSION = 4.0;
 				TEST_TARGET_NAME = "iOS-10-Sampler";
 			};
 			name = Debug;
@@ -1882,7 +1902,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.shu223.iOS-10-SamplerUITests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_VERSION = 4.0;
 				TEST_TARGET_NAME = "iOS-10-Sampler";
 			};
 			name = Release;

iOS-10-Sampler.xcodeproj/xcuserdata/shuichi.xcuserdatad/xcschemes/iOS-10-Sampler.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0810"
+   LastUpgradeVersion = "0900"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

iOS-10-Sampler/Samples/AttributedSpeechViewController.swift

@@ -24,9 +24,9 @@ class AttributedSpeechViewController: UIViewController {
         attributedStr = NSMutableAttributedString(string: baseStr)
         let rangeAll = NSMakeRange(0, baseStr.characters.count)
         let rangeBold = NSString(string: baseStr).range(of: "iOS")
-        attributedStr.addAttributes([NSFontAttributeName: UIFont.systemFont(ofSize: 14)], range: rangeAll)
-        attributedStr.addAttributes([NSForegroundColorAttributeName: UIColor.black], range: rangeAll)
-        attributedStr.addAttributes([NSFontAttributeName: UIFont.boldSystemFont(ofSize: 20)], range: rangeBold)
+        attributedStr.addAttributes([NSAttributedStringKey.font: UIFont.systemFont(ofSize: 14)], range: rangeAll)
+        attributedStr.addAttributes([NSAttributedStringKey.foregroundColor: UIColor.black], range: rangeAll)
+        attributedStr.addAttributes([NSAttributedStringKey.font: UIFont.boldSystemFont(ofSize: 20)], range: rangeBold)
 
         updateUtterance(attributed: false)
     }

iOS-10-Sampler/Samples/Inception3Net.swift

@@ -1063,7 +1063,11 @@ class Inception3Net{
         // In this sample code, the aggregate benefit of the use of MPSTemporaryImages
         // is to reduce the area of memory allocated to 1/4 and save about 3 ms of CPU
         // time.
-        MPSTemporaryImage.prefetchStorage(with: commandBuffer, imageDescriptorList: [sid, inid, m0id, m1id, m2id, m3id, m4id, m5id, m6id, m7id, m8id, m9id, m10id])
+        let descriptors = [sid, inid, m0id, m1id, m2id, m3id, m4id, m5id, m6id, m7id, m8id, m9id, m10id]
+        for descriptor in descriptors {
+            descriptor.storageMode = .private
+        }
+        MPSTemporaryImage.prefetchStorage(with: commandBuffer, imageDescriptorList: descriptors)
 
         // we use preImage to hold preprocesing intermediate results
         preImage = MPSTemporaryImage(commandBuffer: commandBuffer, imageDescriptor: sid)

iOS-10-Sampler/Samples/LivePhotoCaptureDelegate.swift

@@ -63,13 +63,13 @@ class LivePhotoCaptureDelegate: NSObject, AVCapturePhotoCaptureDelegate {
     // =========================================================================
     // MARK: - AVCapturePhotoCaptureDelegate
 
-    func capture(_ captureOutput: AVCapturePhotoOutput, willBeginCaptureForResolvedSettings resolvedSettings: AVCaptureResolvedPhotoSettings) {
+    func photoOutput(_ captureOutput: AVCapturePhotoOutput, willBeginCaptureFor resolvedSettings: AVCaptureResolvedPhotoSettings) {
         if resolvedSettings.livePhotoMovieDimensions.width > 0 && resolvedSettings.livePhotoMovieDimensions.height > 0 {
             capturingLivePhoto(true)
         }
     }
 
-    func capture(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhotoSampleBuffer photoSampleBuffer: CMSampleBuffer?, previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) {
+    func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhoto photoSampleBuffer: CMSampleBuffer?, previewPhoto previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) {
         if let photoSampleBuffer = photoSampleBuffer {
             photoData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: photoSampleBuffer, previewPhotoSampleBuffer: previewPhotoSampleBuffer)
         }
@@ -78,11 +78,11 @@ class LivePhotoCaptureDelegate: NSObject, AVCapturePhotoCaptureDelegate {
         }
     }
 
-    func capture(_ captureOutput: AVCapturePhotoOutput, didFinishRecordingLivePhotoMovieForEventualFileAt outputFileURL: URL, resolvedSettings: AVCaptureResolvedPhotoSettings) {
+    func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishRecordingLivePhotoMovieForEventualFileAt outputFileURL: URL, resolvedSettings: AVCaptureResolvedPhotoSettings) {
         capturingLivePhoto(false)
     }
 
-    func capture(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingLivePhotoToMovieFileAt outputFileURL: URL, duration: CMTime, photoDisplay photoDisplayTime: CMTime, resolvedSettings: AVCaptureResolvedPhotoSettings, error: Error?) {
+    func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingLivePhotoToMovieFileAt outputFileURL: URL, duration: CMTime, photoDisplayTime: CMTime, resolvedSettings: AVCaptureResolvedPhotoSettings, error: Error?) {
         if let error = error {
             print("Error processing live photo companion movie: \(error)")
             return
@@ -91,7 +91,7 @@ class LivePhotoCaptureDelegate: NSObject, AVCapturePhotoCaptureDelegate {
         livePhotoCompanionMovieURL = outputFileURL
     }
 
-    func capture(_ captureOutput: AVCapturePhotoOutput, didFinishCaptureForResolvedSettings resolvedSettings: AVCaptureResolvedPhotoSettings, error: Error?) {
+    func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishCaptureFor resolvedSettings: AVCaptureResolvedPhotoSettings, error: Error?) {
         if let error = error {
             print("Error capturing photo: \(error)")
             didFinish()

iOS-10-Sampler/Samples/LivePhotoCaptureSessionManager.swift

@@ -41,14 +41,14 @@ class LivePhotoCaptureSessionManager: NSObject {
 
         session.beginConfiguration()
 
-        session.sessionPreset = AVCaptureSessionPresetPhoto
+        session.sessionPreset = .photo
 
         // Add video input.
         do {
-            let videoDevice = AVCaptureDevice.defaultDevice(
-                withDeviceType: AVCaptureDeviceType.builtInWideAngleCamera,
-                mediaType: AVMediaTypeVideo,
-                position: .back)
+            guard let videoDevice = AVCaptureDevice.default(
+                .builtInWideAngleCamera,
+                for: .video,
+                position: .back) else {fatalError()}
             let videoDeviceInput = try AVCaptureDeviceInput(device: videoDevice)
 
             if session.canAddInput(videoDeviceInput) {
@@ -71,7 +71,7 @@ class LivePhotoCaptureSessionManager: NSObject {
 
         // Add audio input.
         do {
-            let audioDevice = AVCaptureDevice.defaultDevice(withMediaType: AVMediaTypeAudio)
+            guard let audioDevice = AVCaptureDevice.default(for: .audio) else {fatalError()}
             let audioDeviceInput = try AVCaptureDeviceInput(device: audioDevice)
 
             if session.canAddInput(audioDeviceInput) {
@@ -112,7 +112,7 @@ class LivePhotoCaptureSessionManager: NSObject {
     // MARK: - Public
 
     func authorize() {
-        switch AVCaptureDevice.authorizationStatus(forMediaType: AVMediaTypeVideo) {
+        switch AVCaptureDevice.authorizationStatus(for: .video) {
         case .authorized:
             break
 
@@ -126,7 +126,7 @@ class LivePhotoCaptureSessionManager: NSObject {
              create an AVCaptureDeviceInput for audio during session setup.
              */
             sessionQueue.suspend()
-            AVCaptureDevice.requestAccess(forMediaType: AVMediaTypeVideo, completionHandler: { [unowned self] granted in
+            AVCaptureDevice.requestAccess(for: .video, completionHandler: { [unowned self] granted in
                 if !granted {
                     self.setupResult = .notAuthorized
                 }
@@ -182,17 +182,17 @@ class LivePhotoCaptureSessionManager: NSObject {
 
         sessionQueue.async {
             // Update the photo output's connection to match the video orientation of the video preview layer.
-            if let photoOutputConnection = self.photoOutput.connection(withMediaType: AVMediaTypeVideo) {
+            if let photoOutputConnection = self.photoOutput.connection(with: .video) {
                 photoOutputConnection.videoOrientation = videoOrientation
             }
 
             // Capture a JPEG photo with flash set to auto and high resolution photo enabled.
             let photoSettings = AVCapturePhotoSettings()
             photoSettings.flashMode = .auto
             photoSettings.isHighResolutionPhotoEnabled = true
-            if photoSettings.availablePreviewPhotoPixelFormatTypes.count > 0 {
-                photoSettings.previewPhotoFormat = [kCVPixelBufferPixelFormatTypeKey as String : photoSettings.availablePreviewPhotoPixelFormatTypes.first!]
-            }
+//            if photoSettings.availablePreviewPhotoPixelFormatTypes.count > 0 {
+//                photoSettings.previewPhotoFormat = [kCVPixelBufferPixelFormatTypeKey as String : photoSettings.availablePreviewPhotoPixelFormatTypes.first!]
+//            }
             if self.photoOutput.isLivePhotoCaptureSupported { // Live Photo capture is not supported in movie mode.
                 let livePhotoMovieFileName = NSUUID().uuidString
                 let livePhotoMovieFilePath = (NSTemporaryDirectory() as NSString).appendingPathComponent((livePhotoMovieFileName as NSString).appendingPathExtension("mov")!)

iOS-10-Sampler/Samples/LivePhotoCaptureViewController.swift

@@ -96,8 +96,8 @@ class LivePhotoCaptureViewController: UIViewController {
     // MARK: - Actions
 
     @IBAction private func capturePhoto(_ photoButton: UIButton) {
-        let videoPreviewLayerOrientation = previewView.videoPreviewLayer.connection.videoOrientation
-        LivePhotoCaptureSessionManager.sharedManager.capture(videoOrientation: videoPreviewLayerOrientation) { (inProgressLivePhotoCapturesCount) in
+        let videoPreviewLayerOrientation = previewView.videoPreviewLayer.connection?.videoOrientation
+        LivePhotoCaptureSessionManager.sharedManager.capture(videoOrientation: videoPreviewLayerOrientation!) { (inProgressLivePhotoCapturesCount) in
             DispatchQueue.main.async { [unowned self] in
                 if inProgressLivePhotoCapturesCount > 0 {
                     self.capturingLivePhotoLabel.isHidden = false

iOS-10-Sampler/Samples/Looper.swift

@@ -40,7 +40,7 @@ class Looper: NSObject {
 
         // Getting the natural size of the video
         // http://stackoverflow.com/questions/14466842/ios-6-avplayeritem-presentationsize-returning-zero-naturalsize-method-deprec
-        let videoTracks = playerItem.asset.tracks(withMediaType: AVMediaTypeVideo)
+        let videoTracks = playerItem.asset.tracks(withMediaType: .video)
         guard let videoSize = videoTracks.first?.naturalSize else {fatalError()}
 
         parentLayer.addSublayer(playerLayer)

iOS-10-Sampler/Samples/MNISTDeepCNN.swift

@@ -116,7 +116,7 @@ class MNISTDeepCNN {
         // so the user can decide the appropriate time to release this
         autoreleasepool{
             // Get command buffer to use in MetalPerformanceShaders.
-            let commandBuffer = commandQueue.makeCommandBuffer()
+            guard let commandBuffer = commandQueue.makeCommandBuffer() else {return}
 
             // output will be stored in this image
             let finalLayer = MPSImage(device: commandBuffer.device, imageDescriptor: did)

iOS-10-Sampler/Samples/MetalCNNBasicApple/SlimMPSCNN.swift

@@ -21,7 +21,7 @@ class SlimMPSCNNConvolution: MPSCNNConvolution{
     /**
         A property to keep info from init time whether we will pad input image or not for use during encode call
      */
-    private var padding = true
+    internal var isPadding = true
 
     /**
      Initializes a fully connected kernel.
@@ -34,7 +34,7 @@ class SlimMPSCNNConvolution: MPSCNNConvolution{
          - neuronFilter: A neuronFilter to add at the end as activation, default is nil
          - device: The MTLDevice on which this SlimMPSCNNConvolution filter will be used
          - kernelParamsBinaryName: name of the layer to fetch kernelParameters by adding a prefix "weights_" or "bias_"
-         - padding: Bool value whether to use padding or not
+         - isPadding: Bool value whether to use padding or not
          - strideXY: Stride of the filter
          - destinationFeatureChannelOffset: FeatureChannel no. in the destination MPSImage to start writing from, helps with concat operations
          - groupNum: if grouping is used, default value is 1 meaning no groups
@@ -93,7 +93,7 @@ class SlimMPSCNNConvolution: MPSCNNConvolution{
         self.destinationFeatureChannelOffset = Int(destinationFeatureChannelOffset)
 
         // set padding for calculation of offset during encode call
-        padding = willPad
+        isPadding = willPad
 
         // unmap files at initialization of MPSCNNConvolution, the weights are copied and packed internally we no longer require these
         assert(munmap(hdrW, Int(sizeWeights)) == 0, "munmap failed with errno = \(errno)")
@@ -104,6 +104,10 @@ class SlimMPSCNNConvolution: MPSCNNConvolution{
         close(fd_b)
     }
 
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
     /**
          Encode a MPSCNNKernel into a command Buffer. The operation shall proceed out-of-place.
 
@@ -118,16 +122,23 @@ class SlimMPSCNNConvolution: MPSCNNConvolution{
      */
     override func encode(commandBuffer: MTLCommandBuffer, sourceImage: MPSImage, destinationImage: MPSImage) {
         // select offset according to padding being used or not
-        if padding {
-            let pad_along_height = ((destinationImage.height - 1) * strideInPixelsY + kernelHeight - sourceImage.height)
-            let pad_along_width  = ((destinationImage.width - 1) * strideInPixelsX + kernelWidth - sourceImage.width)
-            let pad_top = Int(pad_along_height / 2)
-            let pad_left = Int(pad_along_width / 2)
-
-            self.offset = MPSOffset(x: ((Int(kernelWidth)/2) - pad_left), y: (Int(kernelHeight/2) - pad_top), z: 0)
+        if isPadding {
+            if #available(iOS 11.0, *) {
+                let pad_along_height = ((destinationImage.height - 1) * strideInPixelsY + kernelHeight - sourceImage.height)
+                let pad_along_width  = ((destinationImage.width - 1) * strideInPixelsX + kernelWidth - sourceImage.width)
+                let pad_top = Int(pad_along_height / 2)
+                let pad_left = Int(pad_along_width / 2)
+                self.offset = MPSOffset(x: ((Int(kernelWidth)/2) - pad_left), y: (Int(kernelHeight/2) - pad_top), z: 0)
+            } else {
+                // Fallback on earlier versions
+            }
         }
         else{
-            self.offset = MPSOffset(x: Int(kernelWidth)/2, y: Int(kernelHeight)/2, z: 0)
+            if #available(iOS 11.0, *) {
+                self.offset = MPSOffset(x: Int(kernelWidth)/2, y: Int(kernelHeight)/2, z: 0)
+            } else {
+                // Fallback on earlier versions
+            }
         }
 
         super.encode(commandBuffer: commandBuffer, sourceImage: sourceImage, destinationImage: destinationImage)
@@ -212,4 +223,8 @@ class SlimMPSCNNFullyConnected: MPSCNNFullyConnected{
         close(fd_w)
         close(fd_b)
     }
+
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
 }