Struct Rgb 

pub struct Rgb {
    pub r: f32,
    pub g: f32,
    pub b: f32,
}

A colour in the device’s RGB space, each channel nominally in 0..=1.

Not clamped on construction: several conversion paths deliberately return out-of-range values (CalGray passes its input through untouched) and the consumer clamps where PDFium clamps.

Fields

r: f32

Red.

g: f32

Green.

b: f32

Blue.

Implementations

impl Rgb

pub const BLACK: Self

Opaque black, the colour a broken space paints.

pub fn to_bytes(self) -> [u8; 3]

The eight-bit encoding used for colour references: clamp, then round to nearest.

Contrast Self::to_bytes_truncating, which the bulk image path uses. The two differ by one on roughly half of all inputs, so calling the wrong one is a visible bug.

pub fn to_bytes_truncating(self) -> [u8; 3]

The eight-bit encoding the image scanline path uses: clamp, then truncate.

Trait Implementations

impl Clone for Rgb

fn clone(&self) -> Rgb

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Rgb

impl Debug for Rgb

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Rgb

fn default() -> Rgb

Returns the “default value” for a type.

impl PartialEq for Rgb

fn eq(&self, other: &Rgb) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Rgb