rgba16(palette:fill:)

A 16-bit RGBA color format.

PNG.Format.swift:237

case rgba16(palette: [(r: UInt8, g: UInt8, b: UInt8)], fill: (r: UInt16, g: UInt16, b: UInt16)?)

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FNV24: [668N]

Parameters

palette

An palette of suggested posterization values. Most PNG viewers ignore this field. Although the image color depth is 16, the palette atom type is UInt8, not UInt16.

This field is unrelated to, and should not be confused with a SuggestedPalette.

fill

An optional background color. Most PNG viewers ignore this field.

This color format has a pixel format of rgba16.

Other cases

case v1(fill: UInt8?, key: UInt8?)
A 1-bit grayscale color format.
case v2(fill: UInt8?, key: UInt8?)
A 2-bit grayscale color format.
case v4(fill: UInt8?, key: UInt8?)
A 4-bit grayscale color format.
case v8(fill: UInt8?, key: UInt8?)
An 8-bit grayscale color format.
case v16(fill: UInt16?, key: UInt16?)
A 16-bit grayscale color format.
case bgr8(palette: [(b: UInt8, g: UInt8, r: UInt8)], fill: (b: UInt8, g: UInt8, r: UInt8)?, key: (b: UInt8, g: UInt8, r: UInt8)?)
An 8-bit BGR color format.
case rgb8(palette: [(r: UInt8, g: UInt8, b: UInt8)], fill: (r: UInt8, g: UInt8, b: UInt8)?, key: (r: UInt8, g: UInt8, b: UInt8)?)
An 8-bit RGB color format.
case rgb16(palette: [(r: UInt8, g: UInt8, b: UInt8)], fill: (r: UInt16, g: UInt16, b: UInt16)?, key: (r: UInt16, g: UInt16, b: UInt16)?)
A 16-bit RGB color format.
case indexed1(palette: [(r: UInt8, g: UInt8, b: UInt8, a: UInt8)], fill: Int?)
A 1-bit indexed color format.
case indexed2(palette: [(r: UInt8, g: UInt8, b: UInt8, a: UInt8)], fill: Int?)
A 2-bit indexed color format.
case indexed4(palette: [(r: UInt8, g: UInt8, b: UInt8, a: UInt8)], fill: Int?)
A 4-bit indexed color format.
case indexed8(palette: [(r: UInt8, g: UInt8, b: UInt8, a: UInt8)], fill: Int?)
An 8-bit indexed color format.
case va8(fill: UInt8?)
An 8-bit grayscale-alpha color format.
case va16(fill: UInt16?)
A 16-bit grayscale-alpha color format.
case bgra8(palette: [(b: UInt8, g: UInt8, r: UInt8)], fill: (b: UInt8, g: UInt8, r: UInt8)?)
An 8-bit BGRA color format.
case rgba8(palette: [(r: UInt8, g: UInt8, b: UInt8)], fill: (r: UInt8, g: UInt8, b: UInt8)?)
An 8-bit RGBA color format.