Struct footile::Gray8

#[repr(C)]
pub struct Gray8 { /* fields omitted */ }

8-bit grayscale pixel format.

This pixel format is for 8-bit grayscale with no alpha channel.

Methods

impl Gray8

pub fn new(value: u8) -> Self

Build a gray8 value.

pub fn value(self) -> u8

Get the component value.

Trait Implementations

impl PixFmt for Gray8

fn color_type() -> ColorType

Get the PNG color type.

fn over(pix: &mut [Self], mask: &[u8], 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 Gray8

impl Default for Gray8

fn default() -> Gray8

Returns the "default value" for a type.

impl Clone for Gray8

fn clone(&self) -> Gray8

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Gray8

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

Formats the value using the given formatter.