Enum FrameAction 

#[non_exhaustive]
pub enum FrameAction {
    Skip,
    CommitFull,
    CommitDamaged,
}

What the present loop should do with this frame.

One enum rather than the reference’s { FrameAction action; bool full; }, where full is meaningless unless action is Commit and is set to false on a skip — a value a caller can read and act on. Three variants make the nonsensical combination unrepresentable, and leave the caller one thing to match.

Variants (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.

Skip

Nothing changed. Issue no commit: no page flip, no scanout reprogram.

CommitFull

Commit the whole frame, omitting FB_DAMAGE_CLIPS.

CommitDamaged

Commit with the producer’s damage rectangles attached.

Implementations

impl FrameAction

pub const fn commits(self) -> bool

Whether this action puts a commit on the wire.

Trait Implementations

impl Clone for FrameAction

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FrameAction

impl Debug for FrameAction

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

Formats the value using the given formatter.

impl Eq for FrameAction

impl PartialEq for FrameAction

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FrameAction