Struct exr::image::Encoding[−][src]

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

Expand description

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

pub const UNCOMPRESSED: Encoding

No compression. Massive space requirements. Fast, because it minimizes data shuffling and reallocation.

pub const FAST_LOSSLESS: Encoding

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.

pub const SMALL_LOSSLESS: Encoding

ZIP compression with blocks of 16 lines. Slow, but produces small files without visible artefacts.

pub const SMALL_FAST_LOSSY: Encoding

PIZ compression with tiles of 256x256 pixels. Small images, not too slow. Might produce visible artefacts in the image.

Trait Implementations

impl Clone for Encoding

fn clone(&self) -> Encoding

Returns a copy of the value. Read more

1.0.0[src]

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

Performs copy-assignment from source. Read more

impl Debug for Encoding

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

Formats the value using the given formatter. Read more

impl Default for Encoding

fn default() -> Self

Returns the “default value” for a type. Read more

impl PartialEq<Encoding> for Encoding

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

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

fn ne(&self, other: &Encoding) -> bool

This method tests for !=.

impl Copy for Encoding

impl StructuralPartialEq for Encoding

Auto Trait Implementations

impl RefUnwindSafe for Encoding

impl Send for Encoding

impl Sync for Encoding

impl Unpin for Encoding

impl UnwindSafe for Encoding

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

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

pub fn into(self) -> U

Performs the conversion.

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

fn read_from_little_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_little_endian().

fn read_from_big_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_big_endian().

fn read_from_native_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_native_endian().

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

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T

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

pub fn clone_into(&self, target: &mut T)

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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

Performs the conversion.