Case

A background case. This is a separate type for validation purposes.

@frozen enum Case

Mangled symbol

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FNV24: [1L9I5]

Cases

case palette(index: Int)
A background descriptor for an indexed image.
case rgb((r: UInt16, g: UInt16, b: UInt16))
A background descriptor for an RGB, BGR, RGBA, or BGRA image.
case v(UInt16)
A background descriptor for a grayscale or grayscale-alpha image.

init(case: Case, pixel: PNG.Format.Pixel, palette: PNG.Palette?)
Creates a background descriptor.
init(parsing: [UInt8], pixel: PNG.Format.Pixel, palette: PNG.Palette?) throws
Creates a background descriptor by parsing the given chunk data, interpreting and validating it according to the given pixel format and image palette.

let `case`: Case
The value of this background descriptor.
var serialized: [UInt8]
Encodes this background descriptor as the contents of a bKGD chunk.