Struct GpuBufferPool 

pub struct GpuBufferPool { /* private fields */ }

A pool allocator that sub-allocates from a large backing buffer.

Implementations

impl GpuBufferPool

pub fn new(capacity: usize) -> Self

Create a pool with capacity bytes.

pub fn alloc( &mut self, size: usize, buffer_type: GpuBufferType, ) -> Option<GpuBufferHandle>

Allocate size bytes from the pool. Returns None if out of memory.

pub fn free(&mut self, handle: GpuBufferHandle)

Free a previously allocated handle.

pub fn defragment(&mut self)

Defragment: compact live allocations to the front of the pool.

Allocations are re-packed in insertion order (by id).

pub fn write( &mut self, handle: &GpuBufferHandle, offset: usize, src: &[u8], ) -> usize

Write bytes to a handle’s region.

pub fn read( &self, handle: &GpuBufferHandle, offset: usize, dst: &mut [u8], ) -> usize

Read bytes from a handle’s region.

pub fn allocation_count(&self) -> usize

Number of live allocations.

pub fn used_bytes(&self) -> usize

Bytes used (sum of aligned allocations).

pub fn free_bytes(&self) -> usize

Free bytes remaining (approximate; does not account for freed holes before defrag).

Trait Implementations

impl Debug for GpuBufferPool

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

Formats the value using the given formatter.