Struct draw2d::graphics::vulkan::device_allocator::Suballocator

pub struct Suballocator { /* fields omitted */ }

A suballocator can divvy up a single allocation into multiple non-overlapping allocations.

Implementations

impl Suballocator

pub fn new(allocation: Allocation) -> Self

pub unsafe fn free_block(
    &mut self,
    allocator: &mut impl DeviceAllocator
) -> Result<()>

pub fn allocate_region(&mut self, size: u64) -> Option<Region>

Find and take a region with the requested size from the free regions.

If no region is large enough, or no regions are remaining, then None is returned.

pub fn free_region(&mut self, region: Region) -> Result<()>

Free a subregion back into the set of free regions. Regions are automatically joined to minimize fragmentation.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Debug for Suballocator

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

Formats the value using the given formatter.

impl DeviceAllocator for Suballocator

unsafe fn allocate(
    &mut self,
    memory_allocate_info: MemoryAllocateInfo
) -> Result<Allocation>

Allocate device memory with the provided type index and size.

unsafe fn free(&mut self, allocation: &Allocation) -> Result<()>

Free an allocated piece of device memory.