Enum Dx12UseFrameLatencyWaitableObject 

pub enum Dx12UseFrameLatencyWaitableObject {
    None,
    Wait,
    DontWait,
}

Available on crate feature unstable-wgpu-27 only.

Whether and how to use a waitable handle obtained from GetFrameLatencyWaitableObject.

Variants

None

Do not obtain a waitable handle and do not wait for it. The swapchain will be created without the DXGI_SWAP_CHAIN_FLAG_FRAME_LATENCY_WAITABLE_OBJECT flag.

Wait

Obtain a waitable handle and wait for it before acquiring the next swapchain image.

DontWait

Create the swapchain with the DXGI_SWAP_CHAIN_FLAG_FRAME_LATENCY_WAITABLE_OBJECT flag and obtain a waitable handle, but do not wait for it before acquiring the next swapchain image. This is useful if the application wants to wait for the waitable object itself.

Implementations

impl Dx12UseFrameLatencyWaitableObject

pub fn from_env() -> Option<Dx12UseFrameLatencyWaitableObject>

Choose whether to use a frame latency waitable object from the environment variable WGPU_DX12_USE_FRAME_LATENCY_WAITABLE_OBJECT.

Valid values, case insensitive:

• None
• Wait
• DontWait

pub fn with_env(self) -> Dx12UseFrameLatencyWaitableObject

Takes the given setting, modifies it based on the WGPU_DX12_USE_FRAME_LATENCY_WAITABLE_OBJECT environment variable, and returns the result.

See from_env for more information.

Trait Implementations

impl Clone for Dx12UseFrameLatencyWaitableObject

fn clone(&self) -> Dx12UseFrameLatencyWaitableObject

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Dx12UseFrameLatencyWaitableObject

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

Formats the value using the given formatter.

impl Default for Dx12UseFrameLatencyWaitableObject

fn default() -> Dx12UseFrameLatencyWaitableObject

Returns the “default value” for a type.