Struct MaskCache 

pub(crate) struct MaskCache {
    map: HashMap<MaskKey, Arc<RenderTexture>>,
    order: VecDeque<MaskKey>,
    hits: u64,
    misses: u64,
}

FIFO-bounded cache of generated mask textures.

Fields

map: HashMap<MaskKey, Arc<RenderTexture>>

order: VecDeque<MaskKey>

hits: u64

misses: u64

Implementations

impl MaskCache

pub(crate) fn new() -> Self

pub(crate) fn get_or_insert<F>( &mut self, key: MaskKey, generate: F, ) -> Arc<RenderTexture>

where F: FnOnce() -> RenderTexture,

Get the cached texture for key, generating it via generate (which is only called on a miss).

pub(crate) fn stats(&self) -> (u64, u64)

pub(crate) fn clear(&mut self)