Struct vk_alloc::LinearAllocator

pub struct LinearAllocator { /* fields omitted */ }

👎 Deprecated since 0.2.0:

This allocator isn’t really useful. A linear allocator is more useful when implemented by the application directly.

A linear memory allocator.

Memory is allocated by simply allocating new memory at the end of an allocated memory block. The whole memory has to be freed at once. Needs to be created for a specific memory location. Heap can only grow as the initially specified block size.

Implementations

impl LinearAllocator

pub fn new(
    instance: &Instance,
    physical_device: PhysicalDevice,
    logical_device: &Device,
    descriptor: &LinearAllocatorDescriptor
) -> Result<Self, AllocatorError>

Creates a new linear allocator.

pub fn allocate(
    &mut self,
    descriptor: &LinearAllocationDescriptor
) -> Result<LinearAllocation, AllocatorError>

Allocates some memory on the linear allocator.

Memory location and requirements have to be defined at the creation of the linear allocator. If the allocator has not enough space left for the allocation, it will fail with an OutOfMemory error.

pub fn free(&mut self)

Resets the end of the heap back to the start of the memory allocation.

All previously Allocation will get invalid after this. Accessing them afterward is undefined behavior.

Trait Implementations

impl AllocatorStatistic for LinearAllocator

fn allocation_count(&self) -> usize

Number of allocations.

fn unused_range_count(&self) -> usize

Number of unused ranges between allocations.

fn used_bytes(&self) -> u64

Number of bytes used by the allocations.

fn unused_bytes(&self) -> u64

Number of bytes used by the unused ranges between allocations.

fn block_count(&self) -> usize

Number of allocated Vulkan memory blocks.

impl Drop for LinearAllocator

fn drop(&mut self)

Executes the destructor for this type.