Enum ImageError 

pub enum ImageError {
    ZeroChannels,
    DimensionOverflow,
    StorageTooShort {
        required: usize,
        found: usize,
    },
    InvalidStride {
        stride: usize,
        minimum: usize,
    },
    InvalidPlaneStride {
        stride: usize,
        minimum: usize,
    },
    MetadataChannelMismatch {
        color_space: ColorSpace,
        expected: usize,
        found: usize,
    },
    InvalidRegion {
        x: usize,
        y: usize,
        region_width: usize,
        region_height: usize,
        image_width: usize,
        image_height: usize,
    },
    OutOfBounds {
        x: usize,
        y: usize,
        width: usize,
        height: usize,
    },
}

Errors raised while constructing or indexing images.

Variants

ZeroChannels

A zero channel image type was requested.

DimensionOverflow

Image dimensions overflowed usize arithmetic.

StorageTooShort

The provided storage does not match the image layout.

Fields

required: usize

Minimum required element count.

found: usize

Provided element count.

InvalidStride

A row stride cannot hold one row of pixels.

Fields

stride: usize

Provided stride in scalar elements.

minimum: usize

Packed row size in scalar elements.

InvalidPlaneStride

A planar channel stride overlaps the preceding channel plane.

Fields

stride: usize

Provided plane stride in scalar elements.

minimum: usize

Minimum non-overlapping plane span.

MetadataChannelMismatch

Color metadata is incompatible with the compile-time channel count.

Fields

color_space: ColorSpace

Declared color space.

expected: usize

Required channel count.

found: usize

Image channel count.

InvalidRegion

A requested image region lies outside its parent image.

Fields

x: usize

Region x origin.

y: usize

Region y origin.

region_width: usize

Region width.

region_height: usize

Region height.

image_width: usize

Parent image width.

image_height: usize

Parent image height.

OutOfBounds

Pixel coordinates were outside the image.

Fields

x: usize

Pixel x coordinate.

y: usize

Pixel y coordinate.

width: usize

Image width.

height: usize

Image height.

Trait Implementations

impl Clone for ImageError

fn clone(&self) -> ImageError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImageError

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

Formats the value using the given formatter.

impl Display for ImageError

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

Formats the value using the given formatter.

impl Error for ImageError

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 PartialEq for ImageError

fn eq(&self, other: &ImageError) -> 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 Eq for ImageError

impl StructuralPartialEq for ImageError