Enum BackendRequest 

pub enum BackendRequest {
    Auto,
    Cpu,
    Metal,
    Cuda,
}

Caller preference for backend selection.

Variants

Auto

Let the codec choose the best available backend.

Cpu

Force the portable CPU backend.

Metal

Force Metal and fail if unavailable.

Cuda

Force CUDA and fail if unavailable.

Implementations

impl BackendRequest

pub const ACCELERATED: Self = Self::Auto

Adaptive accelerated route: let the codec choose CPU and device stages for benchmark-approved workload shapes.

pub const CPU_ONLY: Self = Self::Cpu

Explicit portable CPU route.

pub const STRICT_METAL: Self = Self::Metal

Strict Metal route; fail when Metal is unavailable or unsupported.

pub const STRICT_CUDA: Self = Self::Cuda

Strict CUDA route; fail when CUDA is unavailable or unsupported.

Trait Implementations

impl Clone for BackendRequest

fn clone(&self) -> BackendRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BackendRequest

impl Debug for BackendRequest

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

Formats the value using the given formatter.

impl Default for BackendRequest

fn default() -> BackendRequest

Returns the “default value” for a type.

impl Eq for BackendRequest

impl Hash for BackendRequest

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

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 BackendRequest

fn eq(&self, other: &BackendRequest) -> 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 StructuralPartialEq for BackendRequest