Struct sierra::PresentationTiming

pub struct PresentationTiming {
    pub present_id: u32,
    pub desired_present_time: u64,
    pub actual_present_time: u64,
    pub earliest_present_time: u64,
    pub present_margin: u64,
}

Fields

present_id: u32

An application-provided value that was given to a previous [Queue::present_with_timing]

It can be used to uniquely identify a previous present with the [Queue::present_with_timing].

desired_present_time: u64

An application-provided value that was given to a previous [Queue::present_with_timing]. If non-zero, it was used by the application to indicate that an image not be presented any sooner than [desired_present_time].

actual_present_time: u64

The time when the image of the surface was actually displayed.

earliest_present_time: u64

The time when the image of the surface could have been displayed. This may differ from [actual_present_time] if the application requested that the image be presented no sooner than [desired_present_time]

present_margin: u64

An indication of how early the [Queue::present_with_timing] was processed compared to how soon it needed to be processed, and still be presented at [earliest_present_time].

Trait Implementations

impl Clone for PresentationTiming

fn clone(&self) -> PresentationTiming

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PresentationTiming

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

Formats the value using the given formatter.

impl Hash for PresentationTiming

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

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<PresentationTiming> for PresentationTiming

fn eq(&self, other: &PresentationTiming) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for PresentationTiming

impl Eq for PresentationTiming

impl StructuralEq for PresentationTiming

impl StructuralPartialEq for PresentationTiming