Struct Psf2Font 

pub struct Psf2Font {
    font: &'static [u8],
    header: Psf2Header,
}

A loaded and parsed PSF2 font, ready for rendering into a BasicFramebuffer.

Fields

font: &'static [u8]

The raw font file bytes (glyph bitmaps start at header.header_size).

header: Psf2Header

Implementations

impl Psf2Font

pub fn glyph_height(&self) -> usize

Return the height of one glyph in pixels.

impl Psf2Font

pub fn init() -> Self

Load and parse the built-in PSF2 font embedded in the kernel binary.

Panics

Panics if the embedded file’s magic number does not match MAGIC_NUMBER.

fn parse_char(&self, c: char) -> Option<&'static [u8]>

Return the raw glyph bytes for character c, or None if c has no glyph.

pub fn draw_char( &self, fb: &BasicFramebuffer, c: char, x: usize, y: usize, font_color: Option<u32>, ) -> usize

Render one character into the framebuffer at pixel position (x, y).

Returns the x position immediately after the glyph, or the original x if the character has no glyph or falls outside the framebuffer bounds.

pub fn draw_string( &self, fb: &BasicFramebuffer, string: &str, x: &mut usize, y: &mut usize, font_color: Option<u32>, )

Render a string into the framebuffer, advancing *x/*y after each character. '\n' wraps to the next line.