Struct multicore_bringup::GraphicInfo

#[repr(packed(1))]
pub struct GraphicInfo { /* private fields */ }

A structure to access information about the graphical framebuffer mode that was discovered and chosen in the AP’s real-mode initialization sequence.

Struct format

The layout of fields in this struct must be kept in sync with the code in ap_realmode.asm that writes to this structure.

Implementations

impl GraphicInfo

pub fn width(&self) -> u16

Returns the visible width of the screen, in pixels.

pub fn height(&self) -> u16

Returns the visible height of the screen, in pixels.

pub fn physical_address(&self) -> u32

Returns the physical address of the primary framebuffer memory.

pub fn total_memory_size_in_bytes(&self) -> u32

Returns the total size in bytes of the VGA graphics memory.

This memory contains the framebuffer as well as any extra visible displayable memory, which can be used for any graphics purposes, e.g., a backbuffer for double buffering (aka page flipping).

pub fn bytes_per_scanline(&self) -> u16

The number of bytes in each row or line of the framebuffer’s memory.

This is similar to the “stride” of a framebuffer, but is expressed in units of bytes rather than in units of pixels.

pub fn bits_per_pixel(&self) -> u8

The size of each pixel, in number of bits, not bytes.

pub fn red_size(&self) -> u8

The size of a pixel’s Red value, in number of bits.

pub fn red_position(&self) -> u8

The position of the least significant bit of a pixel’s Red value.

pub fn green_size(&self) -> u8

The size of a pixel’s Green value, in number of bits.

pub fn green_position(&self) -> u8

The position of the least significant bit of a pixel’s Green value.

pub fn blue_size(&self) -> u8

The size of a pixel’s Blue value, in number of bits.

pub fn blue_position(&self) -> u8

The position of the least significant bit of a pixel’s Blue value.

Trait Implementations

impl Clone for GraphicInfo

fn clone(&self) -> GraphicInfo

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GraphicInfo

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

Formats the value using the given formatter.

impl Copy for GraphicInfo

impl FromBytes for GraphicInfo