Struct dx::platform::core::FrameInfo

source · [−]

pub struct FrameInfo { /* private fields */ }

Implementations

impl FrameInfo

pub fn new() -> Self

pub fn frame_counter(&self) -> i64

Gets the frame counter for the Onscreen that corresponds to this frame.

Returns

The frame counter value

pub fn output(&self) -> &Option<Output>

Gets the Output that the swapped frame was presented to.

Returns

The Output that the frame was presented to, or None if this could not be determined.

pub fn presentation_time(&self) -> i64

Gets the presentation time for the frame. This is the time at which the frame became visible to the user.

The presentation time measured in nanoseconds is based on a monotonic time source. The time source is not necessarily correlated with system/wall clock time and may represent the time elapsed since some undefined system event such as when the system last booted.

Linux kernel version less that 3.8 can result in non-monotonic timestamps being reported when using a drm based OpenGL driver. Also some buggy Mesa drivers up to 9.0.1 may also incorrectly report non-monotonic timestamps.

Returns

the presentation time for the frame

pub fn refresh_rate(&self) -> f32

Gets the refresh rate in Hertz for the output that the frame was on at the time the frame was presented.

Some platforms can’t associate a Output with a FrameInfo object but are able to report a refresh rate via this api. Therefore if you need this information then this api is more reliable than using FrameInfo::get_output followed by Output::get_refresh_rate.

Returns

the refresh rate in Hertz

Trait Implementations

impl Debug for FrameInfo

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

Formats the value using the given formatter. Read more

impl Default for FrameInfo

fn default() -> FrameInfo

Returns the “default value” for a type. Read more

impl Display for FrameInfo

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for FrameInfo

impl Send for FrameInfo

impl Sync for FrameInfo

impl Unpin for FrameInfo

impl UnwindSafe for FrameInfo

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> Downcast<T> for T

fn downcast(&self) -> &T

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<Target, From> Getter<From> for Target where
From: AsRef<Target>,

fn get(from: &From) -> &Target

Typed getter

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fn inspect(ctx: &'a mut C) -> &'a C

Inspect the context.

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fn inspect(ctx: &'a mut C) -> &'a mut C

Inspect the context.

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fn inspect(&'a mut C)

Inspect the context.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<Fr, To> IntoColor<To> for Fr where
To: FromColor<Fr>,

fn into_color(self) -> To

Convert into color

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> SetParameter for T

fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
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Sets value as a parameter of self.

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default fn to_string(&self) -> String

Converts the given value to a String. Read more

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U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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Performs the conversion.

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U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> Upcast<T> for T

fn upcast(&self) -> Option<&T>

impl<V, T> VZip<V> for T where
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