Struct footile::Rgba8

#[repr(C)]
pub struct Rgba8 { /* private fields */ }

8-bit per channel RGBA pixel format.

This format has four 8-bit channels: red, green, blue and alpha.

Implementations

impl Rgba8

pub fn new(red: u8, green: u8, blue: u8, alpha: u8) -> Self

Build a color by specifying red, green, blue and alpha values.

pub fn rgb(red: u8, green: u8, blue: u8) -> Self

Build an opaque color by specifying red, green and blue values.

pub fn red(self) -> u8

Get the red component value.

pub fn green(self) -> u8

Get the green component value.

pub fn blue(self) -> u8

Get the blue component value.

pub fn alpha(self) -> u8

Get the alpha component value.

Trait Implementations

impl Clone for Rgba8

fn clone(&self) -> Rgba8

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Rgba8

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

Formats the value using the given formatter.

impl Default for Rgba8

fn default() -> Rgba8

Returns the “default value” for a type.

impl From<Rgba8> for i32

fn from(c: Rgba8) -> i32

Get an i32 from a Rgba8 (alpha in high byte)

impl PixFmt for Rgba8

fn color_type() -> ColorType

Get the PNG color type.

fn over(pix: &mut [Self], mask: &Mask, clr: Self)

Blend pixels with an alpha mask.

• pix Slice of pixels.
• mask Alpha mask for compositing.
• src Source color.

fn divide_alpha(pix: &mut [Self])

Divide alpha (remove premultiplied alpha)

fn as_u8_slice(pix: &[Self]) -> &[u8]

Convert a pixel slice into a u8 slice.

fn as_u8_slice_mut(pix: &mut [Self]) -> &mut [u8]

Convert a pixel slice into a mutable u8 slice.

fn as_slice(pix: &[u8]) -> &[Self]

Convert a u8 slice into a pixel slice.

fn as_slice_mut(pix: &mut [u8]) -> &mut [Self]

Convert a u8 slice into a mutable pixel slice.

impl Copy for Rgba8