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Struct zng_app::render::SpatialFrameId

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pub struct SpatialFrameId(/* private fields */);
Expand description

Unique ID of a reference frame.

§Memory

The internal number is a NonZeroU32, that means that Option<SpatialFrameId> and SpatialFrameId are the same size as u32.

§As Hash

The generated internal number has good statistical distribution and can be used as its own hash, although it is not cryptographically safe, as it is simply a sequential counter scrambled using a modified splitmix64.

§Static

The unique ID cannot be generated at compile time, but you can use the new_static constructor to create a lightweight lazy ID factory that will generate the ID on the first get.

Implementations§

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impl SpatialFrameId

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pub fn new_unique() -> Self

Generates a new unique ID.

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pub const fn new_static() -> StaticSpatialFrameId

New static ID that will be generated on the first get.

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pub fn get(self) -> u32

Retrieve the underlying value.

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pub fn sequential(self) -> u32

Un-scramble the underlying value to get the original sequential count number.

If two IDs, id0 and id1 where generated by the same thread then id0.sequential() < id1.sequential().

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pub fn from_raw(raw: u32) -> Self

Creates an ID from a raw value.

The value must not be zero, panics if it is, the value must have been provided by get otherwise the ID will not be unique.

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pub fn from_sequential(num: u32) -> Self

Creates an ID from a sequential number.

§Safety

The value must not be zero, panics if it is, the value must have been provided by sequential otherwise the ID will not be unique.

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impl Clone for SpatialFrameId

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SpatialFrameId

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

Formats the value using the given formatter. Read more
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impl From<&'static StaticSpatialFrameId> for SpatialFrameId

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fn from(st: &'static StaticSpatialFrameId) -> SpatialFrameId

Converts to this type from the input type.
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impl From<SpatialFrameId> for ReferenceFrameId

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fn from(id: SpatialFrameId) -> Self

Converts to this type from the input type.
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impl Hash for SpatialFrameId

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for SpatialFrameId

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

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

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impl Eq for SpatialFrameId

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impl NoUninit for SpatialFrameId

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impl PodInOption for SpatialFrameId

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impl ZeroableInOption for SpatialFrameId

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Clone the value.
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const ALIGN: usize = _

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type Init = T

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