pub struct OpenExrDecoder<R> { /* private fields */ }
Expand description

An OpenEXR decoder. Immediately reads the meta data from the file.

Implementations§

source§

impl<R: Read + Seek> OpenExrDecoder<R>

source

pub fn new(source: R) -> ImageResult<Self>

Create a decoder. Consumes the first few bytes of the source to extract image dimensions. Assumes the reader is buffered. In most cases, you should wrap your reader in a BufReader for best performance. Loads an alpha channel if the file has alpha samples. Use with_alpha_preference if you want to load or not load alpha unconditionally.

source

pub fn with_alpha_preference( source: R, alpha_preference: Option<bool> ) -> ImageResult<Self>

Create a decoder. Consumes the first few bytes of the source to extract image dimensions. Assumes the reader is buffered. In most cases, you should wrap your reader in a BufReader for best performance. If alpha preference is specified, an alpha channel will always be present or always be not present in the returned image. If alpha preference is none, the alpha channel will only be returned if it is found in the file.

Trait Implementations§

source§

impl<R: Debug> Debug for OpenExrDecoder<R>

source§

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

Formats the value using the given formatter. Read more
source§

impl<'a, R: 'a + Read + Seek> ImageDecoder<'a> for OpenExrDecoder<R>

source§

fn into_reader(self) -> ImageResult<Self::Reader>

👎Deprecated: Planned for removal. See https://github.com/image-rs/image/issues/1989

Use read_image instead if possible, as this method creates a whole new buffer just to contain the entire image.

§

type Reader = Cursor<Vec<u8, Global>>

The type of reader produced by into_reader.
source§

fn dimensions(&self) -> (u32, u32)

Returns a tuple containing the width and height of the image
source§

fn color_type(&self) -> ColorType

Returns the color type of the image data produced by this decoder
source§

fn original_color_type(&self) -> ExtendedColorType

Returns the color type of the image file before decoding
source§

fn scanline_bytes(&self) -> u64

👎Deprecated: Planned for removal. See https://github.com/image-rs/image/issues/1989
Returns the minimum number of bytes that can be efficiently read from this decoder. This may be as few as 1 or as many as total_bytes().
source§

fn read_image_with_progress<F: Fn(Progress)>( self, unaligned_bytes: &mut [u8], progress_callback: F ) -> ImageResult<()>

👎Deprecated: Use read_image instead. See https://github.com/image-rs/image/issues/1989
Same as read_image but periodically calls the provided callback to give updates on loading progress.
source§

fn icc_profile(&mut self) -> Option<Vec<u8>>

Returns the ICC color profile embedded in the image Read more
source§

fn total_bytes(&self) -> u64

Returns the total number of bytes in the decoded image. Read more
source§

fn read_image(self, buf: &mut [u8]) -> ImageResult<()>

Returns all the bytes in the image. Read more
source§

fn set_limits(&mut self, limits: Limits) -> ImageResult<()>

Set decoding limits for this decoder. See Limits for the different kinds of limits that is possible to set. Read more

Auto Trait Implementations§

§

impl<R> !RefUnwindSafe for OpenExrDecoder<R>

§

impl<R> Send for OpenExrDecoder<R>where R: Send,

§

impl<R> Sync for OpenExrDecoder<R>where R: Sync,

§

impl<R> Unpin for OpenExrDecoder<R>where R: Unpin,

§

impl<R> !UnwindSafe for OpenExrDecoder<R>

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

source§

fn into(self) -> U

Calls U::from(self).

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

source§

impl<T> Pointable for T

source§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
source§

unsafe fn drop(ptr: usize)

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

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

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

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.