Enum BufferError 

#[non_exhaustive]
pub enum BufferError {
    AlignmentViolation,
    InsufficientData,
    StrideTooSmall,
    StrideNotPixelAligned,
    InvalidDimensions,
    IncompatibleDescriptor,
    AllocationFailed,
}

Errors from pixel buffer operations.

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.

AlignmentViolation

Data pointer is not aligned for the channel type.

InsufficientData

Data slice is too small for the given dimensions and stride.

StrideTooSmall

Stride is smaller than width * bytes_per_pixel.

StrideNotPixelAligned

Stride is not a multiple of bytes_per_pixel.

Every row must start on a pixel boundary. If stride is not a multiple of bpp, rows after the first will be misaligned.

InvalidDimensions

Width or height is zero or causes overflow.

IncompatibleDescriptor

Descriptor bytes_per_pixel mismatch in reinterpret().

The new descriptor has a different bytes_per_pixel() than the current one, so reinterpreting the buffer would be invalid.

AllocationFailed

Buffer allocation failed (out of memory or overflow).

Trait Implementations

impl Clone for BufferError

fn clone(&self) -> BufferError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BufferError

impl Debug for BufferError

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

Formats the value using the given formatter.

impl Display for BufferError

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

Formats the value using the given formatter.

impl Eq for BufferError

impl Error for BufferError

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<BufferError> for ConvertError

fn from(err: BufferError) -> Self

Wrap a buffer-construction failure’s real cause into ConvertError::Buffer. Pair with map_err_at at the call sites so the At location trace is preserved alongside the classified cause.

impl PartialEq for BufferError

fn eq(&self, other: &BufferError) -> 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 StructuralPartialEq for BufferError