Struct BufferPool 

pub struct BufferPool { /* private fields */ }

A pool that recycles GPU buffers to avoid frequent allocation/deallocation.

When a buffer is “released” back to the pool it is not deleted, but stored for reuse. When a buffer of the same size and usage is requested, it is returned from the pool instead of allocating a new one.

Implementations

impl BufferPool

pub fn new(tracker: Arc<MemoryTracker>, max_pool_size: usize) -> Self

Create a new buffer pool.

pub fn acquire( &mut self, gl: &Context, size_bytes: usize, usage: BufferUsage, ) -> BufferHandle

Acquire a buffer of at least size_bytes with the given usage. Returns an existing pooled buffer if one matches, otherwise allocates new.

pub fn release(&mut self, gl: &Context, handle: BufferHandle)

Release a buffer back to the pool for reuse.

pub fn drain(&mut self, gl: &Context)

Delete all pooled (available) buffers.

pub fn destroy(self, gl: &Context)

Destroy the entire pool including in-use buffers. Caller must ensure no in-use buffers are still referenced.

pub fn available_count(&self) -> usize

Number of available (pooled) buffers.

pub fn in_use_count(&self) -> usize

Number of buffers currently in use.

pub fn pooled_bytes(&self) -> usize

Total pooled memory in bytes (available buffers only).