Enum ReadbackError 

pub enum ReadbackError {
    RingFull(usize),
    MapFailed(String),
    UnsupportedFormat(TextureFormat),
    StashFull(usize),
}

Error returned by ReadbackStream operations.

Variants

RingFull(usize)

All ring-buffer slots are in-flight or pending on the CPU side. The caller should drain frames with ReadbackStream::try_recv or ReadbackStream::flush before submitting more.

MapFailed(String)

The GPU buffer mapping failed.

UnsupportedFormat(TextureFormat)

The texture format does not support readback.

StashFull(usize)

The internal stashed-frame buffer exceeded its safety limit.

Trait Implementations

impl Debug for ReadbackError

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

Formats the value using the given formatter.

impl Display for ReadbackError

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

Formats the value using the given formatter.

impl Error for ReadbackError

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<ReadbackError> for Error

fn from(e: ReadbackError) -> Error

Converts to this type from the input type.