Enum FrameOutcome 

pub enum FrameOutcome {
    Rendered,
    Skipped,
    Redraw,
    SurfaceLost,
}

The outcome of a single render call.

Lets the shell react without knowing the internal state: request another redraw when the surface was reconfigured, recreate the surface when it was lost, or do nothing when a frame was drawn or skipped.

Variants

Rendered

A frame was encoded and presented to the swapchain.

Skipped

No renderable surface (NoSurface/SurfaceLost) or a transient acquire failure: nothing was drawn and nothing was queued.

Redraw

The surface was stale and has been reconfigured; the shell should request another redraw to draw against the fresh configuration.

SurfaceLost

The surface was lost and has been dropped; the machine is now in SurfacePhase::SurfaceLost and the shell must recreate the surface via on_surface_created.

Trait Implementations

impl Clone for FrameOutcome

fn clone(&self) -> FrameOutcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FrameOutcome

impl Debug for FrameOutcome

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

Formats the value using the given formatter.

impl Eq for FrameOutcome

impl PartialEq for FrameOutcome

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FrameOutcome