Struct vulkano::device::physical::QueueFamily

pub struct QueueFamily<'a> { /* private fields */ }

Represents a queue family in a physical device.

A queue family is group of one or multiple queues. All queues of one family have the same characteristics.

Implementations

impl<'a> QueueFamily<'a>

pub fn physical_device(&self) -> PhysicalDevice<'a>

Returns the physical device associated to this queue family.

pub fn id(&self) -> u32

Returns the identifier of this queue family within the physical device.

pub fn queues_count(&self) -> usize

Returns the number of queues that belong to this family.

Guaranteed to be at least 1 (or else that family wouldn’t exist).

pub fn timestamp_valid_bits(&self) -> Option<u32>

If timestamps are supported, returns the number of bits supported by timestamp operations. The returned value will be in the range 36..64. If timestamps are not supported, returns None.

pub fn min_image_transfer_granularity(&self) -> [u32; 3]

Returns the minimum granularity supported for image transfers in terms of [width, height, depth]

pub fn supports_graphics(&self) -> bool

Returns true if queues of this family can execute graphics operations.

pub fn supports_compute(&self) -> bool

Returns true if queues of this family can execute compute operations.

pub fn explicitly_supports_transfers(&self) -> bool

Returns true if queues of this family can execute transfer operations.

Note: While all queues that can perform graphics or compute operations can implicitly perform transfer operations, graphics & compute queues only optionally indicate support for tranfers. Many discrete cards will have one queue family that exclusively sets the VK_QUEUE_TRANSFER_BIT to indicate a special relationship with the DMA module and more efficient transfers.

pub fn supports_sparse_binding(&self) -> bool

Returns true if queues of this family can execute sparse resources binding operations.

pub fn supports_stage(&self, stage: PipelineStage) -> bool

Returns true if the queues of this family support a particular pipeline stage.

pub fn supports_surface<W>(
    &self,
    surface: &Surface<W>
) -> Result<bool, SurfacePropertiesError>

Returns whether queues of this family can draw on the given surface.

Trait Implementations

impl<'a> Clone for QueueFamily<'a>

fn clone(&self) -> QueueFamily<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for QueueFamily<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq<QueueFamily<'a>> for QueueFamily<'a>

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'a> Copy for QueueFamily<'a>

impl<'a> Eq for QueueFamily<'a>