Struct TextureId 

pub struct TextureId(/* private fields */);

Handle to a user-uploaded texture.

Wraps a packed slot index (low 32 bits) and generation (high 32 bits). A handle whose texture was freed (its slot reused by a later upload) carries a stale generation and resolves to None on lookup, falling back to the fallback texture instead of aliasing whatever now occupies the slot. For a texture that is never freed the generation is 0, so the handle’s raw value equals its dense slot index.

Implementations

impl TextureId

pub const INVALID: TextureId

A handle that refers to no texture. Store lookups always return None for it. Use it as the default / placeholder value.

pub fn index(&self) -> usize

The raw slot index this handle points at.

Trait Implementations

impl Clone for TextureId

fn clone(&self) -> TextureId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ContentHandle for TextureId

const INVALID: Self

The handle value that refers to nothing. Store lookups always return None for it.

fn index(&self) -> usize

The raw slot index this handle points at.

fn generation(&self) -> u32

The generation this handle was issued against.

fn from_parts(index: u32, generation: u32) -> Self

Build a handle from a raw slot index and generation. The store mints a handle this way on insert; outside code obtains handles from upload calls and treats them as opaque.

fn is_valid(&self) -> bool

Whether this handle is anything other than INVALID. A valid handle may still fail to resolve if its slot was freed.

impl Copy for TextureId

impl Debug for TextureId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TextureId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for TextureId

impl Hash for TextureId

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 TextureId

fn cmp(&self, other: &TextureId) -> 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 TextureId

fn eq(&self, other: &TextureId) -> 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 TextureId

fn partial_cmp(&self, other: &TextureId) -> 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 Serialize for TextureId

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TextureId