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>
45 lines
1.7 KiB
Swift
45 lines
1.7 KiB
Swift
extension Graphics {
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/// An 8×8 pattern. Mirrors `LCDPattern`: 8 image rows then 8 mask rows,
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/// one byte per row, one bit per pixel.
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public struct Pattern: Sendable {
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public var bytes: (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
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UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)
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public init(bytes: (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
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UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)) {
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self.bytes = bytes
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}
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/// An opaque pattern (mask rows all `0xff`).
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public init(rows r: (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)) {
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bytes = (r.0, r.1, r.2, r.3, r.4, r.5, r.6, r.7,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff)
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}
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}
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}
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// InlineArray needs macOS 26 on the host; device and Linux are unrestricted.
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// Conversions reinterpret the same 16 bytes.
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@available(macOS 26, *)
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extension Graphics.Pattern {
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public init(bytes: [16 of UInt8]) {
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self.init(bytes: unsafeBitCast(bytes, to: Bytes.self))
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}
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/// An opaque pattern (mask rows all `0xff`).
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public init(rows: [8 of UInt8]) {
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self.init(bytes: [16 of UInt8] { $0 < 8 ? rows[$0] : 0xff })
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}
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/// `bytes` as an inline array.
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public var inlineBytes: [16 of UInt8] {
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get { unsafeBitCast(bytes, to: [16 of UInt8].self) }
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set { bytes = unsafeBitCast(newValue, to: Bytes.self) }
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}
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}
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extension Graphics.Pattern {
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typealias Bytes = (UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8,
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UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8, UInt8)
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}
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