Struct early_printer::EarlyFramebufferPrinter

pub struct EarlyFramebufferPrinter {
    pub paddr: PhysicalAddress,
    pub width: u32,
    pub height: u32,
    pub stride: u32,
    pub format: FramebufferFormat,
    /* private fields */
}

A text printer for writing characters to an early graphical framebuffer.

Fields

paddr: PhysicalAddress

The starting physical address of the framebuffer.

width: u32

The width in pixels of the framebuffer.

height: u32

The height in pixels of the framebuffer.

stride: u32

The stride in pixels of the framebuffer.

format: FramebufferFormat

The format of this framebuffer.

Implementations

impl EarlyFramebufferPrinter

pub fn into_mapping(self) -> Option<BorrowedSliceMappedPages<u32, Mutable>>

Returns the memory mapping for the underlying framebuffer, allowing it to be reused.

pub fn print_char( &mut self, ch: char, foreground_pixel_color: u32, background_pixel_color: u32 )

Prints the given character to the current location in this framebuffer.

Trait Implementations

impl Write for EarlyFramebufferPrinter

fn write_str(&mut self, s: &str) -> Result

Writes a string slice into this writer, returning whether the write succeeded.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a char into this writer, returning whether the write succeeded.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Glue for usage of the write! macro with implementors of this trait.