Struct wgpu_conveyor::BindGroupCache

pub struct BindGroupCache<Key: Hash + Eq + Clone> { /* fields omitted */ }

Bind group cache. Corresponds to a single bind group.

If you use multiple bind groups in a single cache, you will likely have cache misses constantly.

Implementations

impl<Key: Hash + Eq + Clone> BindGroupCache<Key>

#[must_use]pub fn new() -> Self

Create a bind group cache with default size 4.

#[must_use]pub fn with_capacity(size: usize) -> Self

Create a bind group cache with given size.

pub fn clear(&mut self)

Empty cache to force repopulation

pub fn create_bind_group<'a, Set, BindGroupFn>(
    &mut self,
    buffers: Set,
    use_cache: bool,
    bind_group_fn: BindGroupFn
) -> Key where
    Set: AutomatedBufferSet<'a, Key = Key>,
    BindGroupFn: FnOnce(&Set::Value) -> BindGroup, 

Using the set of AutomatedBuffers provided in buffers, create or retrieve a bind group and return the key to call get with.

If a bind group is not found, bind_group_fn will be called with the resolved BeltBufferId for the given buffers.

This result will then be cached.

use_cache, if false, will always call the function and overwrite the value (if any) in the cache. This is useful if bind groups are changing every invocation.

pub fn get(&self, key: &Key) -> Option<&BindGroup>

Trait Implementations

impl<Key: Hash + Eq + Clone> Default for BindGroupCache<Key>

fn default() -> Self

Returns the "default value" for a type.