Struct ccthw_ash_allocator::AllocationRequirements

pub struct AllocationRequirements {
    pub size_in_bytes: u64,
    pub alignment: u64,
    pub memory_type_bits: u32,
    pub memory_type_index: usize,
    pub memory_properties: MemoryPropertyFlags,
    pub prefers_dedicated_allocation: bool,
    pub requires_dedicated_allocation: bool,
    pub dedicated_resource_handle: DedicatedResourceHandle,
}

All supported memory requirements.

It’s convenient to keep the Memory Requirements 2 and Dedicated Requirements structures together because they’re populated at the same time.

Fields

size_in_bytes: u64

alignment: u64

memory_type_bits: u32

memory_type_index: usize

memory_properties: MemoryPropertyFlags

prefers_dedicated_allocation: bool

requires_dedicated_allocation: bool

dedicated_resource_handle: DedicatedResourceHandle

Implementations

impl AllocationRequirements

pub fn for_buffer( device: &Device, memory_types: &[MemoryType], memory_property_flags: MemoryPropertyFlags, buffer: Buffer ) -> Result<Self, AllocatorError>

Get the memory requirements for a given buffer.

Params

• device - the device used to create and interact with GPU resources
• memory_types - the memory types available on the physical device
• memory_properties - the memory properties required by the allocation
• buffer - the buffer which needs a memory allocation

pub fn for_image( device: &Device, memory_types: &[MemoryType], memory_property_flags: MemoryPropertyFlags, image: Image ) -> Result<Self, AllocatorError>

Get the memory requirements for a given image.

Params

• device - the device used to create and interact with GPU resources
• memory_types - the memory types available on the physical device
• memory_properties - the memory properties required by the allocation
• image - the image which needs a memory allocation

pub fn aligned_size(&self) -> u64

Compute the maximum size which must be allocated to ensure an aligned offset for the resulting memory.

Trait Implementations

impl Clone for AllocationRequirements

fn clone(&self) -> AllocationRequirements

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AllocationRequirements

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

Formats the value using the given formatter.

impl Default for AllocationRequirements

fn default() -> AllocationRequirements

Returns the “default value” for a type.

impl Display for AllocationRequirements

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

Formats the value using the given formatter.

impl PartialEq<AllocationRequirements> for AllocationRequirements

fn eq(&self, other: &AllocationRequirements) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for AllocationRequirements

impl Eq for AllocationRequirements

impl StructuralEq for AllocationRequirements

impl StructuralPartialEq for AllocationRequirements