Struct VirtIOGpu 

pub struct VirtIOGpu<H: Hal, T: Transport> { /* private fields */ }

A virtio based graphics adapter.

It can operate in 2D mode and in 3D (virgl) mode. 3D mode will offload rendering ops to the host gpu and therefore requires a gpu with 3D support on the host machine. In 2D mode the virtio-gpu device provides support for ARGB Hardware cursors and multiple scanouts (aka heads).

Implementations

impl<H: Hal, T: Transport> VirtIOGpu<H, T>

pub fn new(transport: T) -> Result<Self>

Create a new VirtIO-Gpu driver.

pub fn ack_interrupt(&mut self) -> InterruptStatus

Acknowledge interrupt.

pub fn resolution(&mut self) -> Result<(u32, u32)>

Get the resolution (width, height).

pub fn get_edid(&mut self, scanout: u32) -> Result<Edid>

Get the EDID data for the specified scanout.

Returns an Edid struct wrapping the EDID blob. Requires the EDID feature to have been negotiated.

pub fn edid_preferred_resolution(&mut self) -> Result<(u32, u32)>

Get the preferred resolution from the EDID data.

Parses the first Detailed Timing Descriptor in the EDID to extract the preferred display resolution. Returns (width, height).

pub fn edid_supported_resolutions(&mut self) -> Result<Vec<(u32, u32)>>

Get the list of supported resolutions from EDID data.

Returns up to 8 resolutions from the Standard Timings block, sorted by total pixel count (largest first). Each entry is (width, height).

pub fn setup_framebuffer(&mut self) -> Result<&mut [u8]>

Setup framebuffer at the display’s default resolution.

pub fn change_resolution( &mut self, width: u32, height: u32, ) -> Result<&mut [u8]>

Set or change the framebuffer resolution. If a framebuffer already exists, tears down the existing resource before creating the new one. Can be called before or after setup_framebuffer to set an explicit resolution.

Returns a mutable slice to the new framebuffer memory.

pub fn flush(&mut self) -> Result

Flush framebuffer to screen.

pub fn setup_cursor( &mut self, cursor_image: &[u8], pos_x: u32, pos_y: u32, hot_x: u32, hot_y: u32, ) -> Result

Set the pointer shape and position.

pub fn move_cursor(&mut self, pos_x: u32, pos_y: u32) -> Result

Move the pointer without updating the shape.

Trait Implementations

impl<H: Hal, T: Transport> Drop for VirtIOGpu<H, T>

fn drop(&mut self)

Executes the destructor for this type.