Struct `Encoding`

pub struct Encoding { pub compression: Compression, pub blocks: Blocks, pub line_order: LineOrder }

How the pixels are split up and compressed.

Fields

compression: Compression: How the pixel data of all channels in this layer is compressed. May be Compression::Uncompressed. See layer.attributes for more attributes.
blocks: Blocks: Describes how the pixels of this layer are divided into smaller blocks. Either splits the image into its scan lines or splits the image into tiles of the specified size. A single block can be loaded without processing all bytes of a file.
line_order: LineOrder: In what order the tiles of this header occur in the file. Does not change any actual image orientation. See layer.attributes for more attributes.

Implementations

`impl Encoding`

const FAST_LOSSLESS: Self = _;: Run-length encoding with tiles of 64x64 pixels. This is the recommended default encoding. Almost as fast as uncompressed data, but optimizes single-colored areas such as mattes and masks.
const SMALL_FAST_LOSSLESS: Self = _;: PIZ compression with tiles of 256x256 pixels. Small images, not too slow.
const SMALL_LOSSLESS: Self = _;: ZIP compression with blocks of 16 lines. Slow, but produces small files without visible artefacts.
const UNCOMPRESSED: Self = _;: No compression. Massive space requirements. Fast, because it minimizes data shuffling and reallocation.

Trait Implementations

`impl Clone for Encoding`

fn clone(&self) -> Self

`impl Copy for Encoding`

`impl Debug for Encoding`

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

`impl Default for Encoding`

fn default() -> Self

`impl PartialEq for Encoding`

fn eq(&self, other: &Self) -> bool

`impl StructuralPartialEq for Encoding`

Auto Trait Implementations

`impl Freeze for Encoding`

`impl RefUnwindSafe for Encoding`

`impl Send for Encoding`

`impl Sync for Encoding`

`impl Unpin for Encoding`

`impl UnsafeUnpin for Encoding`

`impl UnwindSafe for Encoding`

Blanket Implementations

`impl<R, P> ReadPrimitive<R> for Encoding where R: Read + ReadEndian<P>, P: Default,`

`impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for Encoding where ST: ?Sized, DT: ?Sized,`

`impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for Encoding where ST: ?Sized, DT: ?Sized,`

`impl<T> Any for Encoding where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for Encoding where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for Encoding where T: ?Sized,`

fn borrow_mut(&mut self) -> &mut T

`impl<T> CloneToUninit for Encoding where T: Clone,`

unsafe fn clone_to_uninit(&self, dest: *mut u8)

`impl<T> From<T> for Encoding`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> Pointable for Encoding`

const ALIGN: usize = _;
type Init = T;
unsafe fn init(init: <T as Pointable>::Init) -> usize
unsafe fn deref<'a>(ptr: usize) -> &'a T
unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
unsafe fn drop(ptr: usize)

`impl<T> Read<Exclusive, BecauseExclusive> for Encoding where T: ?Sized,`

`impl<T> ToOwned for Encoding where T: Clone,`

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

`impl<T, U> Into<U> for Encoding where U: From<T>,`

fn into(self) -> U

Calls U::from(self).

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

`impl<T, U> TryFrom<U> for Encoding where U: Into<T>,`

type Error = never;
fn try_from(value: U) -> Result<T, never>

`impl<T, U> TryInto<U> for Encoding where U: TryFrom<T>,`

type Error = <U as TryFrom<T>>::Error;
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>