Enum GroupSource 

pub enum GroupSource {
    Placeholder,
    Pooled(SceneTextureId),
    Retained {
        view: usize,
        generation: u64,
        size: (u32, u32),
    },
}

What a cached bind group samples as its layer input.

Variants

Placeholder

The transparent placeholder, which composites nothing.

Pooled(SceneTextureId)

A pooled page, by the id its texture minted for itself. A pool that drops a texture and allocates another never reuses the id, so an entry naming a dropped texture can only ever miss.

Retained

A retained page: the address of its view in the store, the store’s generation and the page extent. The store advances its generation whenever a page is added, evicted, re-rendered at another extent or the store is cleared, which are the only ways a view’s address can come to name a different texture.

Fields

view: usize

Address of the page’s view inside the store.

generation: u64

The store’s generation when the key was made.

size: (u32, u32)

The page extent.

Trait Implementations

impl Clone for GroupSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GroupSource

impl Debug for GroupSource

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

Formats the value using the given formatter.

impl Eq for GroupSource

impl Hash for GroupSource

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 for GroupSource

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GroupSource