Struct MTLTextureSparseTier 

#[repr(transparent)]
pub struct MTLTextureSparseTier(pub NSInteger);

Available on crate feature MTLResource only.

Enumerates the different support levels for sparse textures.

See also Apple’s documentation

Tuple Fields

0: NSInteger

Implementations

impl MTLTextureSparseTier

pub const TierNone: Self

Indicates that the texture is not sparse.

pub const Tier1: Self

Indicates support for sparse textures tier 1.

Tier 1 sparse textures allow the following:

• Partial memory backing at sparse tile granularity.
• Defined behavior for accessing an unbacked texture region.
• Shader feedback on texture access to determine memory backing.

An unbacked texture region indicates a region within the texture that doesn’t have memory backing at a given point in time. Accessing an unbacked texture region produces the following results:

• Reading returns zero (transparent black) for pixel formats with an alpha (A) channel.
• Reading return zero in RGB and one in alpha (A) channels (opaque black) otherwise.
• Writing produces no result.

pub const Tier2: Self

Indicates support for sparse textures tier 2.

In addition to the guarantees tier 1 sparse textures provide, tier 2 sparse textures allow the following:

• Obtain per-tile activity counters.

Trait Implementations

impl Clone for MTLTextureSparseTier

fn clone(&self) -> MTLTextureSparseTier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MTLTextureSparseTier

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

Formats the value using the given formatter.

impl Encode for MTLTextureSparseTier

const ENCODING: Encoding = NSInteger::ENCODING

The Objective-C type-encoding for this type.

impl Hash for MTLTextureSparseTier

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 Ord for MTLTextureSparseTier

fn cmp(&self, other: &MTLTextureSparseTier) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for MTLTextureSparseTier

fn eq(&self, other: &MTLTextureSparseTier) -> 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 PartialOrd for MTLTextureSparseTier

fn partial_cmp(&self, other: &MTLTextureSparseTier) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RefEncode for MTLTextureSparseTier

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Copy for MTLTextureSparseTier

impl Eq for MTLTextureSparseTier

impl StructuralPartialEq for MTLTextureSparseTier