Enum BackbufferPersistence 

pub enum BackbufferPersistence {
    Persistent,
    Transient,
}

Does the backbuffer survive flush()?

CPU raster backends are Persistent; swap-chain GPU backends (SDL accelerated / wgpu / Web canvas) are Transient. App::run picks dirty-only vs. full-frame rendering based on this.

Variants

Persistent

Transient

Trait Implementations

impl Clone for BackbufferPersistence

fn clone(&self) -> BackbufferPersistence

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackbufferPersistence

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

Formats the value using the given formatter.

impl PartialEq for BackbufferPersistence

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for BackbufferPersistence

impl Eq for BackbufferPersistence

impl StructuralPartialEq for BackbufferPersistence