Enum MemoryAllocatePreference 

pub enum MemoryAllocatePreference {
    Unknown,
    NeverAllocate,
    AlwaysAllocate,
}

Describes whether allocating DeviceMemory is desired.

Variants

Unknown

There is no known preference, let the allocator decide.

NeverAllocate

The allocator should never allocate DeviceMemory and should instead only suballocate from existing blocks.

This option is best suited if you can not afford the overhead of allocating DeviceMemory.

AlwaysAllocate

The allocator should always allocate DeviceMemory.

This option is best suited if you are allocating a long-lived resource that you know could benefit from having a dedicated allocation.

Trait Implementations

impl Clone for MemoryAllocatePreference

fn clone(&self) -> MemoryAllocatePreference

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryAllocatePreference

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

Formats the value using the given formatter.

impl Hash for MemoryAllocatePreference

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for MemoryAllocatePreference

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for MemoryAllocatePreference

impl Eq for MemoryAllocatePreference

impl StructuralPartialEq for MemoryAllocatePreference