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Working brightness huds

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This commit is contained in:
Hariharan Mudaliar 2025-10-18 13:41:07 +05:30
commit e4d9653f81
1 changed files with 51 additions and 2 deletions
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53
DynamicIsland/managers/SystemMediaControllers.swift
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@ -1,5 +1,6 @@
import Foundation
import CoreAudio
import CoreGraphics
import IOKit
extension Notification.Name {
@ -273,6 +274,7 @@ final class SystemBrightnessController {
private let notificationCenter = NotificationCenter.default
private var observers: [NSObjectProtocol] = []
private var notificationsInstalled = false
private var displayID: CGDirectDisplayID = CGMainDisplayID()
private init() {
registerExternalNotifications()
@ -292,13 +294,24 @@ final class SystemBrightnessController {
func setBrightness(_ value: Float) {
let clamped = max(0, min(1, value))
if setBrightnessViaDisplayServices(clamped) {
notifyCurrentBrightness()
return
}
guard let service = displayService() else { return }
IODisplaySetFloatParameter(service, 0, kIODisplayBrightnessKey as CFString, clamped)
let status = IODisplaySetFloatParameter(service, 0, kIODisplayBrightnessKey as CFString, clamped)
IOObjectRelease(service)
notifyCurrentBrightness()
if status == kIOReturnSuccess {
notifyCurrentBrightness()
} else {
NSLog("⚠️ Failed to set brightness via IODisplay: \(status)")
}
}
var currentBrightness: Float {
if let level = getBrightnessViaDisplayServices() {
return level
}
guard let service = displayService() else { return 0.5 }
var brightness: Float = 0
let result = IODisplayGetFloatParameter(service, 0, kIODisplayBrightnessKey as CFString, &brightness)
@ -327,6 +340,36 @@ final class SystemBrightnessController {
return service
}
private func setBrightnessViaDisplayServices(_ value: Float) -> Bool {
let status = DisplayServicesSetBrightness(displayID, value)
if status == kIOReturnSuccess {
return true
}
// Attempt to refresh display ID in case the main display changed
displayID = CGMainDisplayID()
let retry = DisplayServicesSetBrightness(displayID, value)
if retry != kIOReturnSuccess {
NSLog("⚠️ DisplayServicesSetBrightness failed: \(retry)")
return false
}
return true
}
private func getBrightnessViaDisplayServices() -> Float? {
var brightness: Float = 0
let status = DisplayServicesGetBrightness(displayID, &brightness)
if status == kIOReturnSuccess {
return brightness
}
displayID = CGMainDisplayID()
let retry = DisplayServicesGetBrightness(displayID, &brightness)
if retry == kIOReturnSuccess {
return brightness
}
NSLog("⚠️ DisplayServicesGetBrightness failed: \(retry)")
return nil
}
private func registerExternalNotifications() {
guard !notificationsInstalled else { return }
let names = [
@ -346,3 +389,9 @@ final class SystemBrightnessController {
observers.forEach { DistributedNotificationCenter.default().removeObserver($0) }
}
}
@_silgen_name("DisplayServicesGetBrightness")
private func DisplayServicesGetBrightness(_ display: UInt32, _ brightness: UnsafeMutablePointer<Float>) -> Int32
@_silgen_name("DisplayServicesSetBrightness")
private func DisplayServicesSetBrightness(_ display: UInt32, _ brightness: Float) -> Int32