pub enum Error {
    TooLarge,
    NormalFormRequired(NormalForm),
    WrongColor(ColorType),
}
Expand description

Denotes invalid flat sample buffers when trying to convert to stricter types.

The biggest use case being ImageBuffer which expects closely packed samples in a row major matrix representation. But this error type may be resused for other import functions. A more versatile user may also try to correct the underlying representation depending on the error variant.

Variants

TooLarge

The represented image was too large.

The optional value denotes a possibly accepted maximal bound.

NormalFormRequired(NormalForm)

The represented image can not use this representation.

Has an additional value of the normalized form that would be accepted.

WrongColor(ColorType)

The color format did not match the channel count.

In some cases you might be able to fix this by lowering the reported pixel count of the buffer without touching the strides.

In very special circumstances you may do the opposite. This is VERY dangerous but not directly memory unsafe although that will likely alias pixels. One scenario is when you want to construct an Rgba image but have only 3 bytes per pixel and for some reason don’t care about the value of the alpha channel even though you need Rgba.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

The lower-level source of this error, if any. Read more

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

Returns a stack backtrace, if available, of where this error occurred. Read more

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

Performs the conversion.

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The alignment of pointer.

The type for initializers.

Initializes a with the given initializer. Read more

Dereferences the given pointer. Read more

Mutably dereferences the given pointer. Read more

Drops the object pointed to by the given pointer. Read more

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

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

Uses borrowed data to replace owned data, usually by cloning. Read more

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.