react-native-vision-camera/ios/CameraView+Focus.swift

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Swift
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//
// CameraView+focus.swift
// mrousavy
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//
// Created by Marc Rousavy on 19.02.21.
// Copyright © 2021 mrousavy. All rights reserved.
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//
import Foundation
extension CameraView {
feat: Draw onto `Frame` as if it was a Skia Canvas (#1479) * Create Shaders.ts * Add `previewType` and `enableFpsGraph` * Add RN Skia native dependency * Add Skia Preview View on iOS * Pass 1 * Update FrameHostObject.mm * Wrap Canvas * Lockfiles * fix: Fix stuff * chore: Upgrade RNWorklets * Add `previewType` to set the Preview * feat: Add Example * Update project.pbxproj * `enableFpsGraph` * Cache the `std::shared_ptr<FrameHostObject>` * Update CameraView+RecordVideo.swift * Update SkiaMetalCanvasProvider.mm * Android: Integrate Skia Dependency * fix: Use new Prefix * Add example for rendering shader * chore: Upgrade CameraX * Remove KTX * Enable `viewBinding` * Revert "Enable `viewBinding`" This reverts commit f2a603f53b33ea4311a296422ffd1a910ce03f9e. * Revert "chore: Upgrade CameraX" This reverts commit 8dc832cf8754490d31a6192e6c1a1f11cdcd94fe. * Remove unneeded `ProcessCameraProvider.getInstance()` call * fix: Add REA hotfix patch * fix: Fix FrameHostObject dead in runAsync * fix: Make `runAsync` run truly async by dropping new Frames while executing * chore: Upgrade RN Worklets to latest * chore: Upgrade RN Skia * Revert "Remove KTX" This reverts commit 253f586633f7af2da992d2279fc206dc62597129. * Make Skia optional in CMake * Fix import * Update CMakeLists.txt * Update build.gradle * Update CameraView.kt * Update CameraView.kt * Update CameraView.kt * Update Shaders.ts * Center Blur * chore: Upgrade RN Worklets * feat: Add `toByteArray()`, `orientation`, `isMirrored` and `timestamp` to `Frame` (#1487) * feat: Implement `orientation` and `isMirrored` on Frame * feat: Add `toArrayBuffer()` func * perf: Do faster buffer copy * feat: Implement `toArrayBuffer()` on Android * feat: Add `orientation` and `isMirrored` to Android * feat: Add `timestamp` to Frame * Update Frame.ts * Update JImageProxy.h * Update FrameHostObject.cpp * Update FrameHostObject.cpp * Update CameraPage.tsx * fix: Format Swift
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private func rotateFrameSize(frameSize: CGSize, orientation: UIInterfaceOrientation) -> CGSize {
switch orientation {
case .portrait, .portraitUpsideDown, .unknown:
// swap width and height since the input orientation is rotated
return CGSize(width: frameSize.height, height: frameSize.width)
case .landscapeLeft, .landscapeRight:
// is same as camera sensor orientation
return frameSize
@unknown default:
return frameSize
}
}
/// Converts a Point in the UI View Layer to a Point in the Camera Frame coordinate system
func convertLayerPointToFramePoint(layerPoint point: CGPoint) -> CGPoint {
guard let previewView = previewView else {
invokeOnError(.session(.cameraNotReady))
return .zero
}
guard let videoDeviceInput = videoDeviceInput else {
invokeOnError(.session(.cameraNotReady))
return .zero
}
guard let viewScale = window?.screen.scale else {
invokeOnError(.unknown(message: "View has no parent Window!"))
return .zero
}
let frameSize = rotateFrameSize(frameSize: videoDeviceInput.device.activeFormat.videoDimensions,
orientation: outputOrientation)
let viewSize = CGSize(width: previewView.bounds.width * viewScale,
height: previewView.bounds.height * viewScale)
let scale = min(frameSize.width / viewSize.width, frameSize.height / viewSize.height)
let scaledViewSize = CGSize(width: viewSize.width * scale, height: viewSize.height * scale)
let overlapX = scaledViewSize.width - frameSize.width
let overlapY = scaledViewSize.height - frameSize.height
let scaledPoint = CGPoint(x: point.x * scale, y: point.y * scale)
return CGPoint(x: scaledPoint.x - (overlapX / 2), y: scaledPoint.y - (overlapY / 2))
}
/// Converts a Point in the UI View Layer to a Point in the Camera Device Sensor coordinate system (x: [0..1], y: [0..1])
func captureDevicePointConverted(fromLayerPoint pointInLayer: CGPoint) -> CGPoint {
guard let videoDeviceInput = videoDeviceInput else {
invokeOnError(.session(.cameraNotReady))
return .zero
}
let frameSize = rotateFrameSize(frameSize: videoDeviceInput.device.activeFormat.videoDimensions,
orientation: outputOrientation)
let pointInFrame = convertLayerPointToFramePoint(layerPoint: pointInLayer)
return CGPoint(x: pointInFrame.x / frameSize.width, y: pointInFrame.y / frameSize.height)
}
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func focus(point: CGPoint, promise: Promise) {
withPromise(promise) {
guard let device = self.videoDeviceInput?.device else {
throw CameraError.session(SessionError.cameraNotReady)
}
if !device.isFocusPointOfInterestSupported {
throw CameraError.device(DeviceError.focusNotSupported)
}
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feat: Draw onto `Frame` as if it was a Skia Canvas (#1479) * Create Shaders.ts * Add `previewType` and `enableFpsGraph` * Add RN Skia native dependency * Add Skia Preview View on iOS * Pass 1 * Update FrameHostObject.mm * Wrap Canvas * Lockfiles * fix: Fix stuff * chore: Upgrade RNWorklets * Add `previewType` to set the Preview * feat: Add Example * Update project.pbxproj * `enableFpsGraph` * Cache the `std::shared_ptr<FrameHostObject>` * Update CameraView+RecordVideo.swift * Update SkiaMetalCanvasProvider.mm * Android: Integrate Skia Dependency * fix: Use new Prefix * Add example for rendering shader * chore: Upgrade CameraX * Remove KTX * Enable `viewBinding` * Revert "Enable `viewBinding`" This reverts commit f2a603f53b33ea4311a296422ffd1a910ce03f9e. * Revert "chore: Upgrade CameraX" This reverts commit 8dc832cf8754490d31a6192e6c1a1f11cdcd94fe. * Remove unneeded `ProcessCameraProvider.getInstance()` call * fix: Add REA hotfix patch * fix: Fix FrameHostObject dead in runAsync * fix: Make `runAsync` run truly async by dropping new Frames while executing * chore: Upgrade RN Worklets to latest * chore: Upgrade RN Skia * Revert "Remove KTX" This reverts commit 253f586633f7af2da992d2279fc206dc62597129. * Make Skia optional in CMake * Fix import * Update CMakeLists.txt * Update build.gradle * Update CameraView.kt * Update CameraView.kt * Update CameraView.kt * Update Shaders.ts * Center Blur * chore: Upgrade RN Worklets * feat: Add `toByteArray()`, `orientation`, `isMirrored` and `timestamp` to `Frame` (#1487) * feat: Implement `orientation` and `isMirrored` on Frame * feat: Add `toArrayBuffer()` func * perf: Do faster buffer copy * feat: Implement `toArrayBuffer()` on Android * feat: Add `orientation` and `isMirrored` to Android * feat: Add `timestamp` to Frame * Update Frame.ts * Update JImageProxy.h * Update FrameHostObject.cpp * Update FrameHostObject.cpp * Update CameraPage.tsx * fix: Format Swift
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// in {0..1} system
let normalizedPoint = captureDevicePointConverted(fromLayerPoint: point)
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do {
try device.lockForConfiguration()
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device.focusPointOfInterest = normalizedPoint
device.focusMode = .continuousAutoFocus
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if device.isExposurePointOfInterestSupported {
device.exposurePointOfInterest = normalizedPoint
device.exposureMode = .continuousAutoExposure
}
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device.unlockForConfiguration()
return nil
} catch {
throw CameraError.device(DeviceError.configureError)
}
}
}
}