Enum wayland_client::protocol::wl_buffer::Event
source · #[non_exhaustive]pub enum Event {
Release,
}
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Release
compositor releases buffer
Sent when this wl_buffer is no longer used by the compositor. The client is now free to reuse or destroy this buffer and its backing storage.
If a client receives a release event before the frame callback requested in the same wl_surface.commit that attaches this wl_buffer to a surface, then the client is immediately free to reuse the buffer and its backing storage, and does not need a second buffer for the next surface content update. Typically this is possible, when the compositor maintains a copy of the wl_surface contents, e.g. as a GL texture. This is an important optimization for GL(ES) compositors with wl_shm clients.
Trait Implementations§
source§impl MessageGroup for Event
impl MessageGroup for Event
source§const MESSAGES: &'static [MessageDesc] = _
const MESSAGES: &'static [MessageDesc] = _
Wire representation of this MessageGroup
§type Map = ProxyMap
type Map = ProxyMap
The wrapper type for ObjectMap allowing the mapping of Object and
NewId arguments to the object map during parsing.
source§fn is_destructor(&self) -> bool
fn is_destructor(&self) -> bool
Whether this message is a destructor Read more
source§fn child<Meta: ObjectMetadata>(
opcode: u16,
version: u32,
meta: &Meta
) -> Option<Object<Meta>>
fn child<Meta: ObjectMetadata>( opcode: u16, version: u32, meta: &Meta ) -> Option<Object<Meta>>
Retrieve the child
Object
associated with this message if anysource§fn from_raw(msg: Message, map: &mut Self::Map) -> Result<Self, ()>
fn from_raw(msg: Message, map: &mut Self::Map) -> Result<Self, ()>
Construct a message from its raw representation
source§unsafe fn from_raw_c(
obj: *mut c_void,
opcode: u32,
args: *const wl_argument
) -> Result<Event, ()>
unsafe fn from_raw_c( obj: *mut c_void, opcode: u32, args: *const wl_argument ) -> Result<Event, ()>
Construct a message of this group from its C representation Read more
source§fn as_raw_c_in<F, T>(self, f: F) -> T
fn as_raw_c_in<F, T>(self, f: F) -> T
Build a C representation of this message Read more
Auto Trait Implementations§
impl RefUnwindSafe for Event
impl Send for Event
impl Sync for Event
impl Unpin for Event
impl UnwindSafe for Event
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more