javier
c5037dd716
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>
52 lines
1.9 KiB
Swift
52 lines
1.9 KiB
Swift
internal import CPlaydate
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extension Sound {
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/// Base class of `FilePlayer`, `SamplePlayer`, `Synth`, `DelayLineTap`, and
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/// `CallbackSource`. Wraps `SoundSource`.
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public class Source {
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private static var api: UnsafePointer<playdate_sound_source> { Playdate.sourceAPI.unsafelyUnwrapped }
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/// Set once, right after creation.
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var pointer: OpaquePointer!
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let isOwned: Bool
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var finishCallback: ((Source) -> Void)?
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init(pointer: OpaquePointer?, isOwned: Bool) {
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self.pointer = pointer
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self.isOwned = isOwned
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}
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/// Per-channel volume, 0–1.
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public var volume: (left: Float, right: Float) {
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get {
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var left: Float = 0, right: Float = 0
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Source.api.pointee.getVolume.unsafelyUnwrapped(pointer, &left, &right)
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return (left, right)
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}
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set { Source.api.pointee.setVolume.unsafelyUnwrapped(pointer, newValue.left, newValue.right) }
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}
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public func setVolume(_ volume: Float) {
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self.volume = (volume, volume)
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}
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public var isPlaying: Bool {
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Source.api.pointee.isPlaying.unsafelyUnwrapped(pointer) != 0
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}
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/// Called when the source finishes playing; `nil` removes it.
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public func setFinishCallback(_ callback: ((Source) -> Void)?) {
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finishCallback = callback
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if callback != nil {
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Source.api.pointee.setFinishCallback.unsafelyUnwrapped(pointer, { _, userdata in
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guard let userdata else { return }
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let source = Unmanaged<Source>.fromOpaque(userdata).takeUnretainedValue()
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source.finishCallback?(source)
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}, Unmanaged.passUnretained(self).toOpaque())
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} else {
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Source.api.pointee.setFinishCallback.unsafelyUnwrapped(pointer, nil, nil)
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}
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}
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}
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}
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