Struct wayland_protocols::wp::linux_dmabuf::zv1::client::zwp_linux_dmabuf_feedback_v1::ZwpLinuxDmabufFeedbackV1
source · pub struct ZwpLinuxDmabufFeedbackV1 {
id: ObjectId,
version: u32,
data: Option<Arc<dyn ObjectData>>,
backend: WeakBackend,
}
Expand description
dmabuf feedback
This object advertises dmabuf parameters feedback. This includes the preferred devices and the supported formats/modifiers.
The parameters are sent once when this object is created and whenever they change. The done event is always sent once after all parameters have been sent. When a single parameter changes, all parameters are re-sent by the compositor.
Compositors can re-send the parameters when the current client buffer allocations are sub-optimal. Compositors should not re-send the parameters if re-allocating the buffers would not result in a more optimal configuration. In particular, compositors should avoid sending the exact same parameters multiple times in a row.
The tranche_target_device and tranche_formats events are grouped by tranches of preference. For each tranche, a tranche_target_device, one tranche_flags and one or more tranche_formats events are sent, followed by a tranche_done event finishing the list. The tranches are sent in descending order of preference. All formats and modifiers in the same tranche have the same preference.
To send parameters, the compositor sends one main_device event, tranches (each consisting of one tranche_target_device event, one tranche_flags event, tranche_formats events and then a tranche_done event), then one done event.
See also the Event enum for this interface.
Fields§
§id: ObjectId
§version: u32
§data: Option<Arc<dyn ObjectData>>
§backend: WeakBackend
Implementations§
Trait Implementations§
source§impl Borrow<ObjectId> for ZwpLinuxDmabufFeedbackV1
impl Borrow<ObjectId> for ZwpLinuxDmabufFeedbackV1
source§impl Clone for ZwpLinuxDmabufFeedbackV1
impl Clone for ZwpLinuxDmabufFeedbackV1
source§fn clone(&self) -> ZwpLinuxDmabufFeedbackV1
fn clone(&self) -> ZwpLinuxDmabufFeedbackV1
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for ZwpLinuxDmabufFeedbackV1
impl Debug for ZwpLinuxDmabufFeedbackV1
source§impl Hash for ZwpLinuxDmabufFeedbackV1
impl Hash for ZwpLinuxDmabufFeedbackV1
source§impl PartialEq<Weak<ZwpLinuxDmabufFeedbackV1>> for ZwpLinuxDmabufFeedbackV1
impl PartialEq<Weak<ZwpLinuxDmabufFeedbackV1>> for ZwpLinuxDmabufFeedbackV1
source§impl PartialEq for ZwpLinuxDmabufFeedbackV1
impl PartialEq for ZwpLinuxDmabufFeedbackV1
source§fn eq(&self, other: &ZwpLinuxDmabufFeedbackV1) -> bool
fn eq(&self, other: &ZwpLinuxDmabufFeedbackV1) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl Proxy for ZwpLinuxDmabufFeedbackV1
impl Proxy for ZwpLinuxDmabufFeedbackV1
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 ZwpLinuxDmabufFeedbackV1
Auto Trait Implementations§
impl Freeze for ZwpLinuxDmabufFeedbackV1
impl !RefUnwindSafe for ZwpLinuxDmabufFeedbackV1
impl Send for ZwpLinuxDmabufFeedbackV1
impl Sync for ZwpLinuxDmabufFeedbackV1
impl Unpin for ZwpLinuxDmabufFeedbackV1
impl !UnwindSafe for ZwpLinuxDmabufFeedbackV1
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.