Struct OpaqueImageVTable

#[repr(C)]
pub struct OpaqueImageVTable {
    pub drop_in_place: unsafe extern "C" fn(_: VRefMut<'_, OpaqueImageVTable>) -> Layout,
    pub dealloc: unsafe extern "C" fn(_: &OpaqueImageVTable, ptr: *mut u8, layout: Layout),
    pub size: unsafe extern "C" fn(_: VRef<'_, OpaqueImageVTable>) -> IntSize,
    pub cache_key: unsafe extern "C" fn(_: VRef<'_, OpaqueImageVTable>) -> ImageCacheKey,
}

Fields

drop_in_place: unsafe extern "C" fn(_: VRefMut<'_, OpaqueImageVTable>) -> Layout

dealloc: unsafe extern "C" fn(_: &OpaqueImageVTable, ptr: *mut u8, layout: Layout)

size: unsafe extern "C" fn(_: VRef<'_, OpaqueImageVTable>) -> IntSize

Returns the image size

cache_key: unsafe extern "C" fn(_: VRef<'_, OpaqueImageVTable>) -> ImageCacheKey

Returns a cache key

Implementations

impl OpaqueImageVTable

pub fn new<T: OpaqueImage>() -> Self

Create a vtable suitable for a given type implementing the trait.

Trait Implementations

impl HasStaticVTable<OpaqueImageVTable> for NineSliceImage

fn static_vtable() -> &'static OpaqueImageVTable

Safety: must be a valid VTable for Self

impl VTableMeta for OpaqueImageVTable

type VTable = OpaqueImageVTable

That’s the VTable itself (so most likely Self)

type Target = OpaqueImageTO

That’s the trait object that implements the functions

impl VTableMetaDropInPlace for OpaqueImageVTable

unsafe fn drop_in_place(vtable: &Self::VTable, ptr: *mut u8) -> Layout

Safety

unsafe fn dealloc(vtable: &Self::VTable, ptr: *mut u8, layout: Layout)

Safety