Struct draw2d::graphics::vulkan::device_allocator::PassthroughAllocator

pub struct PassthroughAllocator { /* fields omitted */ }

An allocator implementation which just directly allocates a new piece of device memory on each call.

This allocator is stateles and can be cheaply cloned when building allocators which decorate this behavior.

Implementations

impl PassthroughAllocator

pub fn create(logical_device: Device) -> Self

Create a new stateless passthrough allocator which just directly allocates and deallocates memory using the vulkan logical device.

Trait Implementations

impl Clone for PassthroughAllocator

fn clone(&self) -> PassthroughAllocator

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl DeviceAllocator for PassthroughAllocator

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

Directly allocate device memory onto the heap indicated by the memory type index of the allocate_info struct.

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

Free the allocation’s underlying memory.

unsafe because

• it is the responsibility of the caller to ensure the allocation’s device memory is no longer in use
• this includes other allocations which reference the same piece of memory! Don’t double-free!