Enum PresentMode

#[repr(C)]
pub enum PresentMode {
    Immediate = 0,
    Mailbox = 1,
    Fifo = 2,
}

Behavior of the presentation engine based on frame rate.

Variants

Immediate = 0

The presentation engine does not wait for a vertical blanking period and the request is presented immediately. This is a low-latency presentation mode, but visible tearing may be observed. Will fallback to Fifo if unavailable on the selected platform and backend. Not optimal for mobile.

Mailbox = 1

The presentation engine waits for the next vertical blanking period to update the current image, but frames may be submitted without delay. This is a low-latency presentation mode and visible tearing will not be observed. Will fallback to Fifo if unavailable on the selected platform and backend. Not optimal for mobile.

Fifo = 2

The presentation engine waits for the next vertical blanking period to update the current image. The framerate will be capped at the display refresh rate, corresponding to the VSync. Tearing cannot be observed. Optimal for mobile.

Trait Implementations

impl Clone for PresentMode

fn clone(&self) -> PresentMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PresentMode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PresentMode

fn deserialize<__D>( __deserializer: __D, ) -> Result<PresentMode, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for PresentMode

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PresentMode

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for PresentMode

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for PresentMode

impl Eq for PresentMode

impl StructuralPartialEq for PresentMode