Enum PaintError 

#[non_exhaustive]
pub enum PaintError {
    WouldBlock,
    Allocate(DumbError),
    UnknownFormat(u32),
    Zero(&'static str),
}

What went wrong painting a frame.

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.

WouldBlock

Every slot is busy. Retry after the next flip completes.

Flow control, not a failure: the producer is ahead of the display.

Allocate(DumbError)

A slot’s buffer could not be allocated.

UnknownFormat(u32)

The format’s bits-per-pixel is not one this can size an allocation from.

Zero(&'static str)

A zero width, height or slot count, which the reference refuses as EINVAL: a ring of nothing could never paint a frame.

Trait Implementations

impl Debug for PaintError

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

Formats the value using the given formatter.

impl Display for PaintError

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

Formats the value using the given formatter.

impl Error for PaintError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<DumbError> for PaintError

fn from(source: DumbError) -> Self

Converts to this type from the input type.

impl From<PaintError> for PresentError

fn from(error: PaintError) -> Self

Converts to this type from the input type.