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Swift 6.4 migration and exhancements (#1)

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This PR contains the work done to update the library and the attached example project to use the Swift 6.4 computer as a minimum supported version and also, to use the latest features introduced in it.

Reviewed-on: #1
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
This commit was merged in pull request #1.
This commit is contained in:
javier
2026-09-18 13:15:08 +00:00
committed by javier
parent d0a561b91f
commit c5037dd716
105 changed files with 1390 additions and 1397 deletions
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Sources/PlaydateKit/Sound/Source/Classes/CallbackSource.swift
+8 -9
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@@ -1,15 +1,14 @@
extension Sound {
/// A source that produces audio by calling back into Swift.
/// A source rendered by a Swift callback every audio cycle. Create with
/// `Sound.addSource(stereo:_:)`; it stays alive until removed with `removeSource`.
public final class CallbackSource: Source {
let callback: Callback
/// Every callback source is kept alive here while the C side may
/// still invoke its trampoline: from creation until it is removed
/// with `Sound.removeSource`/`Channel.removeSource`, or until its
/// owning channel is freed.
/// Keeps sources alive for the C trampoline until removed (`Sound`/`Channel`
/// `.removeSource`) or their channel is freed.
nonisolated(unsafe) static var live: [CallbackSource] = []
/// Releases the registration added by `adopt(pointer:)`.
/// Drops the reference added by `adopt(pointer:)`.
static func release(_ source: Source) {
live.removeAll { $0 === source }
}
@@ -27,9 +26,9 @@ extension Sound {
UnsafeMutablePointer<Int16>?, Int32) -> Int32 = { context, left, right, length in
guard let context, let left else { return 0 }
let source = Unmanaged<CallbackSource>.fromOpaque(context).takeUnretainedValue()
let leftBuffer = UnsafeMutableBufferPointer(start: left, count: Int(length))
let rightBuffer = right.map { UnsafeMutableBufferPointer(start: $0, count: Int(length)) }
return source.callback(leftBuffer, rightBuffer) ? 1 : 0
var leftSpan = UnsafeMutableBufferPointer(start: left, count: Int(length)).mutableSpan
var rightSpan = UnsafeMutableBufferPointer(start: right, count: right == nil ? 0 : Int(length)).mutableSpan
return source.callback(&leftSpan, &rightSpan) ? 1 : 0
}
/// Attaches the C object created for this source.