Struct webrender_api::ImageKey

#[repr(C)]
pub struct ImageKey(pub IdNamespace, pub u32);

An opaque identifier describing an image registered with WebRender. This is used as a handle to reference images, and is used as the hash map key for the actual image storage in the ResourceCache.

Methods

impl ImageKey

pub const DUMMY: Self

Placeholder Image key, used to represent None.

pub fn new(namespace: IdNamespace, key: u32) -> Self

Mints a new ImageKey. The given ID must be unique.

Trait Implementations

impl Clone for ImageKey

fn clone(&self) -> ImageKey

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for ImageKey

impl Copy for ImageKey

impl PartialEq<ImageKey> for ImageKey

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

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

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

This method tests for !=.

impl Debug for ImageKey

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

Formats the value using the given formatter.

impl Hash for ImageKey

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, 

Feeds a slice of this type into the given [Hasher].

impl Serialize for ImageKey

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

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for ImageKey

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

fn deserialize_in_place<__D>(
    __deserializer: __D,
    __place: &mut Self
) -> Result<(), __D::Error> where
    __D: Deserializer<'de>, 

impl MallocSizeOf for ImageKey

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.