mirror of
https://github.com/FBukovina/Atoll.git
synced 2026-10-27 15:14:33 +00:00
63 lines
2.3 KiB
Swift
63 lines
2.3 KiB
Swift
/*
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* Atoll (DynamicIsland)
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* Copyright (C) 2024-2026 Atoll Contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import Foundation
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import IOKit
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import Darwin
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func di_getIOProperties(_ entry: io_registry_entry_t) -> NSDictionary? {
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var properties: Unmanaged<CFMutableDictionary>? = nil
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guard IORegistryEntryCreateCFProperties(entry, &properties, kCFAllocatorDefault, 0) == kIOReturnSuccess else {
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return nil
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}
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defer { properties?.release() }
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return properties?.takeUnretainedValue()
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}
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func di_getIOName(_ entry: io_registry_entry_t) -> String? {
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let pointer = UnsafeMutablePointer<io_name_t>.allocate(capacity: 1)
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defer { pointer.deallocate() }
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let result = IORegistryEntryGetName(entry, pointer)
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guard result == kIOReturnSuccess else {
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if let message = String(validatingUTF8: mach_error_string(result)) {
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print("IORegistryEntryGetName error: \(message)")
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}
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return nil
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}
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return String(cString: UnsafeRawPointer(pointer).assumingMemoryBound(to: CChar.self))
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}
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func di_convertCFDataToFrequencies(_ data: Data, isM4: Bool = false) -> [Int32] {
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guard !data.isEmpty else { return [] }
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let bytes = [UInt8](data)
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let multiplier: UInt32 = isM4 ? 1_000 : 1_000_000
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var frequencies: [Int32] = []
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for chunkStart in stride(from: 0, to: bytes.count, by: 8) {
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let upperBound = min(chunkStart + 8, bytes.count)
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let chunk = bytes[chunkStart..<upperBound]
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if chunk.count < 4 { continue }
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let value = chunk.prefix(4).enumerated().reduce(UInt32(0)) { partial, element in
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partial | (UInt32(element.element) << (UInt32(element.offset) * 8))
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}
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frequencies.append(Int32(value / multiplier))
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}
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return frequencies
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}
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