Struct Bitmap

pub struct Bitmap { /* private fields */ }

A rectangular 2d-array of u8 where the values 0 through 255 represent shades of grey.

Implementations

impl Bitmap

pub fn lines(&self) -> Chunks<'_, u8>

Return an iterator over the lines of the bitmap going from top to bottom.

Examples found in repository

examples/basic_char.rs (line 8)

fn main() {
    let bytes = include_bytes!("Gudea-Regular.ttf");
    let font = load_font_from_bytes(bytes.to_vec());
    let (_, bitmap) = font.render_char('A', 40.0).unwrap();
    for line in bitmap.lines() {
        for &pixel in line {
            if pixel == 0 {
                print!(" ");
            } else {
                print!("#");
            }
        }
        println!("");
    }
}

examples/basic_atlas.rs (line 9)

fn main() {
    let bytes = include_bytes!("Gudea-Regular.ttf");
    let font = load_font_from_bytes(bytes.to_vec());
    let chars = font_atlas::ASCII.iter().cloned().chain(font_atlas::ASCII.iter().cloned());
    let (_, bitmap, _) = font.make_atlas(chars, 20.0, 1, 128, 128);
    for line in bitmap.lines() {
        print!("{:03} ", line.len());
        for &pixel in line {
            if pixel == 0 {
                print!(" ");
            } else {
                print!("#");
            }
        }
        println!("");
    }
}

pub fn width(&self) -> usize

The width of this bitmap

pub fn height(&self) -> usize

The height of this bitmap

pub fn raw(&self) -> &[u8]

Gain access to the underlying slice of u8.

pub fn into_raw(self) -> Vec<u8>

Get the underlying buffer of u8

Trait Implementations

impl Buffer2d for Bitmap

type Pixel = u8

fn width(&self) -> u32

fn height(&self) -> u32

fn get(&self, x: u32, y: u32) -> Option<Self::Pixel>

fn set(&mut self, x: u32, y: u32, val: Self::Pixel)

fn patch<B: Buffer2d<Pixel = Self::Pixel>>(&mut self, x: u32, y: u32, buf: &B)

fn patch_rotated<B: Buffer2d<Pixel = Self::Pixel>>( &mut self, x: u32, y: u32, buf: &B, )

fn dimensions(&self) -> (u32, u32)

impl Debug for Bitmap

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

Formats the value using the given formatter.

impl ResizeBuffer for Bitmap

fn resize(&mut self, width: u32, height: u32)