Struct wayland_protocols::wp::fifo::v1::client::wp_fifo_v1::WpFifoV1
source · pub struct WpFifoV1 {
id: ObjectId,
version: u32,
data: Option<Arc<dyn ObjectData>>,
backend: WeakBackend,
}
Expand description
fifo interface
A fifo object for a surface that may be used to add display refresh constraints to content updates.
This interface has no events.
Fields§
§id: ObjectId
§version: u32
§data: Option<Arc<dyn ObjectData>>
§backend: WeakBackend
Implementations§
source§impl WpFifoV1
impl WpFifoV1
sourcepub fn set_barrier(&self)
pub fn set_barrier(&self)
sets the start point for a fifo constraint
When the content update containing the “set_barrier” is applied, it sets a “fifo_barrier” condition on the surface associated with the fifo object. The condition is cleared immediately after the following latching deadline for non-tearing presentation.
The compositor may clear the condition early if it must do so to ensure client forward progress assumptions.
To wait for this condition to clear, use the “wait_barrier” request.
“set_barrier” is double-buffered state, see wl_surface.commit.
Requesting set_barrier after the fifo object’s surface is destroyed will generate a “surface_destroyed” error.
sourcepub fn wait_barrier(&self)
pub fn wait_barrier(&self)
adds a fifo constraint to a content update
Indicate that this content update is not ready while a “fifo_barrier” condition is present on the surface.
This means that when the content update containing “set_barrier” was made active at a latching deadline, it will be active for at least one refresh cycle. A content update which is allowed to tear might become active after a latching deadline if no content update became active at the deadline.
The constraint must be ignored if the surface is a subsurface in synchronized mode. If the surface is not being updated by the compositor (off-screen, occluded) the compositor may ignore the constraint. Clients must use an additional mechanism such as frame callbacks or timestamps to ensure throttling occurs under all conditions.
“wait_barrier” is double-buffered state, see wl_surface.commit.
Requesting “wait_barrier” after the fifo object’s surface is destroyed will generate a “surface_destroyed” error.
Trait Implementations§
source§impl PartialEq<Weak<WpFifoV1>> for WpFifoV1
impl PartialEq<Weak<WpFifoV1>> for WpFifoV1
source§impl PartialEq for WpFifoV1
impl PartialEq for WpFifoV1
source§impl Proxy for WpFifoV1
impl Proxy for WpFifoV1
source§fn data<U: Send + Sync + 'static>(&self) -> Option<&U>
fn data<U: Send + Sync + 'static>(&self) -> Option<&U>
source§fn object_data(&self) -> Option<&Arc<dyn ObjectData>>
fn object_data(&self) -> Option<&Arc<dyn ObjectData>>
source§fn backend(&self) -> &WeakBackend
fn backend(&self) -> &WeakBackend
source§fn send_request(&self, req: Self::Request<'_>) -> Result<(), InvalidId>
fn send_request(&self, req: Self::Request<'_>) -> Result<(), InvalidId>
source§fn send_constructor<I: Proxy>(
&self,
req: Self::Request<'_>,
data: Arc<dyn ObjectData>,
) -> Result<I, InvalidId>
fn send_constructor<I: Proxy>( &self, req: Self::Request<'_>, data: Arc<dyn ObjectData>, ) -> Result<I, InvalidId>
source§fn from_id(conn: &Connection, id: ObjectId) -> Result<Self, InvalidId>
fn from_id(conn: &Connection, id: ObjectId) -> Result<Self, InvalidId>
source§fn inert(backend: WeakBackend) -> Self
fn inert(backend: WeakBackend) -> Self
source§fn parse_event(
conn: &Connection,
msg: Message<ObjectId, OwnedFd>,
) -> Result<(Self, Self::Event), DispatchError>
fn parse_event( conn: &Connection, msg: Message<ObjectId, OwnedFd>, ) -> Result<(Self, Self::Event), DispatchError>
source§fn write_request<'a>(
&self,
conn: &Connection,
msg: Self::Request<'a>,
) -> Result<(Message<ObjectId, BorrowedFd<'a>>, Option<(&'static Interface, u32)>), InvalidId>
fn write_request<'a>( &self, conn: &Connection, msg: Self::Request<'a>, ) -> Result<(Message<ObjectId, BorrowedFd<'a>>, Option<(&'static Interface, u32)>), InvalidId>
impl Eq for WpFifoV1
Auto Trait Implementations§
impl Freeze for WpFifoV1
impl !RefUnwindSafe for WpFifoV1
impl Send for WpFifoV1
impl Sync for WpFifoV1
impl Unpin for WpFifoV1
impl !UnwindSafe for WpFifoV1
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
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.