Enum GpuFallback 

#[non_exhaustive]
pub enum GpuFallback {
    UnsupportedBlendMode(BlendMode),
    UnsupportedCompositeOp(CompositeOp),
    UnsupportedEffect,
}

Why a frame cannot composite on the GPU and falls back to the CPU compositor. #[non_exhaustive]: more reasons appear as coverage changes.

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.

UnsupportedBlendMode(BlendMode)

A blend mode with no ff-render equivalent.

UnsupportedCompositeOp(CompositeOp)

A composite operator other than Over.

UnsupportedEffect

An effect step with no GPU node.

Trait Implementations

impl Clone for GpuFallback

fn clone(&self) -> GpuFallback

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GpuFallback

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

Formats the value using the given formatter.

impl PartialEq for GpuFallback

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GpuFallback