Camera and editor improvements

submodules/Camera/Sources/Camera.swift

@@ -41,11 +41,12 @@ final class CameraDeviceContext {
     
     let device = CameraDevice()
     let input = CameraInput()
-    let output = CameraOutput()
+    let output: CameraOutput
     
     init(session: CameraSession, exclusive: Bool) {
         self.session = session
         self.exclusive = exclusive
+        self.output = CameraOutput(exclusive: exclusive)
     }
     
     func configure(position: Camera.Position, previewView: CameraSimplePreviewView?, audio: Bool, photo: Bool, metadata: Bool) {

submodules/Camera/Sources/CameraOutput.swift

@@ -73,6 +73,8 @@ final class CameraOutput: NSObject {
     let metadataOutput = AVCaptureMetadataOutput()
     private let faceLandmarksOutput = FaceLandmarksDataOutput()
     
+    let exclusive: Bool
+    
     private var photoConnection: AVCaptureConnection?
     private var videoConnection: AVCaptureConnection?
     private var previewConnection: AVCaptureConnection?
@@ -91,7 +93,9 @@ final class CameraOutput: NSObject {
     var processCodes: (([CameraCode]) -> Void)?
     var processFaceLandmarks: (([VNFaceObservation]) -> Void)?
     
-    override init() {
+    init(exclusive: Bool) {
+        self.exclusive = exclusive
+        
         super.init()
 
         self.videoOutput.alwaysDiscardsLateVideoFrames = false
@@ -270,8 +274,13 @@ final class CameraOutput: NSObject {
     }
     
     func takePhoto(orientation: AVCaptureVideoOrientation, flashMode: AVCaptureDevice.FlashMode) -> Signal<PhotoCaptureResult, NoError> {
+        var mirror = false
         if let connection = self.photoOutput.connection(with: .video) {
             connection.videoOrientation = orientation
+            
+            if #available(iOS 13.0, *) {
+                mirror = connection.inputPorts.first?.sourceDevicePosition == .front
+            }
         }
         
         let settings = AVCapturePhotoSettings(format: [kCVPixelBufferPixelFormatTypeKey as String: Int(kCVPixelFormatType_32BGRA)])
@@ -280,11 +289,19 @@ final class CameraOutput: NSObject {
             settings.previewPhotoFormat = [kCVPixelBufferPixelFormatTypeKey as String: previewPhotoPixelFormatType]
         }
         if #available(iOS 13.0, *) {
+            if self.exclusive {
+                if self.photoOutput.maxPhotoQualityPrioritization != .speed  {
+                    settings.photoQualityPrioritization = .balanced
+                } else {
                     settings.photoQualityPrioritization = .speed
                 }
+            } else {
+                settings.photoQualityPrioritization = .speed
+            }
+        }
         
         let uniqueId = settings.uniqueID
-        let photoCapture = PhotoCaptureContext(settings: settings, filter: self.activeFilter)
+        let photoCapture = PhotoCaptureContext(settings: settings, filter: self.activeFilter, mirror: mirror)
         self.photoCaptureRequests[uniqueId] = photoCapture
         self.photoOutput.capturePhoto(with: settings, delegate: photoCapture)
         

submodules/Camera/Sources/PhotoCaptureContext.swift

@@ -35,9 +35,11 @@ public enum PhotoCaptureResult: Equatable {
 final class PhotoCaptureContext: NSObject, AVCapturePhotoCaptureDelegate {
     private let pipe = ValuePipe<PhotoCaptureResult>()
     private let filter: CameraFilter?
+    private let mirror: Bool
     
-    init(settings: AVCapturePhotoSettings, filter: CameraFilter?) {
+    init(settings: AVCapturePhotoSettings, filter: CameraFilter?, mirror: Bool) {
         self.filter = filter
+        self.mirror = mirror
         
         super.init()
     }
@@ -79,6 +81,11 @@ final class PhotoCaptureContext: NSObject, AVCapturePhotoCaptureDelegate {
                 var image = UIImage(cgImage: cgImage, scale: 1.0, orientation: .right)
                 if image.imageOrientation != .up {
                     UIGraphicsBeginImageContextWithOptions(image.size, true, image.scale)
+                    if self.mirror, let context = UIGraphicsGetCurrentContext() {
+                        context.translateBy(x: image.size.width / 2.0, y: image.size.height / 2.0)
+                        context.scaleBy(x: -1.0, y: 1.0)
+                        context.translateBy(x: -image.size.width / 2.0, y: -image.size.height / 2.0)
+                    }
                     image.draw(in: CGRect(origin: .zero, size: image.size))
                     if let currentImage = UIGraphicsGetImageFromCurrentImageContext() {
                         image = currentImage

submodules/TelegramUI/Components/CameraScreen/Sources/CameraScreen.swift

@@ -524,6 +524,8 @@ private final class CameraScreenComponent: CombinedComponent {
             } else {
                 captureControlsAvailableSize = availableSize
             }
+            
+            let animateShutter = component.animateShutter
             let captureControls = captureControls.update(
                 component: CaptureControlsComponent(
                     isTablet: isTablet,
@@ -538,6 +540,7 @@ private final class CameraScreenComponent: CombinedComponent {
                         }
                         if case .none = state.cameraState.recording {
                             if state.cameraState.mode == .photo {
+                                animateShutter()
                                 state.takePhoto()
                             } else if state.cameraState.mode == .video {
                                 state.startVideoRecording(pressing: false)