#[non_exhaustive]
pub enum Event { Buffer { format: WEnum<Format>, width: u32, height: u32, stride: u32, }, Flags { flags: WEnum<Flags>, }, Ready { tv_sec_hi: u32, tv_sec_lo: u32, tv_nsec: u32, }, Failed, Damage { x: u32, y: u32, width: u32, height: u32, }, LinuxDmabuf { format: u32, width: u32, height: u32, }, BufferDone, }

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.
§

Buffer

Fields

§format: WEnum<Format>

buffer format

§width: u32

buffer width

§height: u32

buffer height

§stride: u32

buffer stride

wl_shm buffer information

Provides information about wl_shm buffer parameters that need to be used for this frame. This event is sent once after the frame is created if wl_shm buffers are supported.

§

Flags

Fields

§flags: WEnum<Flags>

frame flags

frame flags

Provides flags about the frame. This event is sent once before the “ready” event.

§

Ready

Fields

§tv_sec_hi: u32

high 32 bits of the seconds part of the timestamp

§tv_sec_lo: u32

low 32 bits of the seconds part of the timestamp

§tv_nsec: u32

nanoseconds part of the timestamp

indicates frame is available for reading

Called as soon as the frame is copied, indicating it is available for reading. This event includes the time at which presentation happened at.

The timestamp is expressed as tv_sec_hi, tv_sec_lo, tv_nsec triples, each component being an unsigned 32-bit value. Whole seconds are in tv_sec which is a 64-bit value combined from tv_sec_hi and tv_sec_lo, and the additional fractional part in tv_nsec as nanoseconds. Hence, for valid timestamps tv_nsec must be in [0, 999999999]. The seconds part may have an arbitrary offset at start.

After receiving this event, the client should destroy the object.

§

Failed

frame copy failed

This event indicates that the attempted frame copy has failed.

After receiving this event, the client should destroy the object.

§

Damage

Fields

§x: u32

damaged x coordinates

§y: u32

damaged y coordinates

§width: u32

current width

§height: u32

current height

carries the coordinates of the damaged region

This event is sent right before the ready event when copy_with_damage is requested. It may be generated multiple times for each copy_with_damage request.

The arguments describe a box around an area that has changed since the last copy request that was derived from the current screencopy manager instance.

The union of all regions received between the call to copy_with_damage and a ready event is the total damage since the prior ready event.

Only available since version 2 of the interface

§

LinuxDmabuf

Fields

§format: u32

fourcc pixel format

§width: u32

buffer width

§height: u32

buffer height

linux-dmabuf buffer information

Provides information about linux-dmabuf buffer parameters that need to be used for this frame. This event is sent once after the frame is created if linux-dmabuf buffers are supported.

Only available since version 3 of the interface

§

BufferDone

all buffer types reported

This event is sent once after all buffer events have been sent.

The client should proceed to create a buffer of one of the supported types, and send a “copy” request.

Only available since version 3 of the interface

Implementations§

source§

impl Event

source

pub fn opcode(&self) -> u16

Get the opcode number of this message

Trait Implementations§

source§

impl Debug for Event

source§

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

Formats the value using the given formatter. 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> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> Downcast for T
where T: Any,

source§

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert 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>

Convert 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)

Convert &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)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
source§

impl<T> DowncastSync for T
where T: Any + Send + Sync,

source§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.