Struct nannou::image::hdr::HDRAdapter

pub struct HDRAdapter<R> where
    R: BufRead,  { /* fields omitted */ }

Adapter to conform to ImageDecoder trait

Methods

impl<R> HDRAdapter<R> where
    R: BufRead, 

pub fn new(r: R) -> Result<HDRAdapter<R>, ImageError>

Creates adapter

pub fn new_nonstrict(r: R) -> Result<HDRAdapter<R>, ImageError>

Allows reading old Radiance HDR images

Trait Implementations

impl<R> Debug for HDRAdapter<R> where
    R: BufRead + Debug, 

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

Formats the value using the given formatter.

impl<'a, R> ImageDecoder<'a> for HDRAdapter<R> where
    R: 'a + BufRead, 

type Reader = HdrReader<R>

The type of reader produced by into_reader.

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

Returns a tuple containing the width and height of the image

fn color_type(&self) -> ColorType

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

fn into_reader(
    self
) -> Result<<HDRAdapter<R> as ImageDecoder<'a>>::Reader, ImageError>

Returns a reader that can be used to obtain the bytes of the image. For the best performance, always try to read at least scanline_bytes from the reader at a time. Reading fewer bytes will cause the reader to perform internal buffering.

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

Returns all the bytes in the image.

fn original_color_type(&self) -> ExtendedColorType

Retuns the color type of the image file before decoding

fn total_bytes(&self) -> u64

Returns the total number of bytes in the decoded image.

fn scanline_bytes(&self) -> u64

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().

fn read_image_with_progress<F>(
    self,
    buf: &mut [u8],
    progress_callback: F
) -> Result<(), ImageError> where
    F: Fn(Progress), 

Same as read_image but periodically calls the provided callback to give updates on loading progress.

impl<'a, R> ImageDecoderExt<'a> for HDRAdapter<R> where
    R: 'a + Seek + BufRead, 

fn read_rect_with_progress<F>(
    &mut self,
    x: u32,
    y: u32,
    width: u32,
    height: u32,
    buf: &mut [u8],
    progress_callback: F
) -> Result<(), ImageError> where
    F: Fn(Progress), 

Decode a rectangular section of the image, periodically reporting progress.

fn read_rect(
    &mut self,
    x: u32,
    y: u32,
    width: u32,
    height: u32,
    buf: &mut [u8]
) -> Result<(), ImageError>

Decode a rectangular section of the image; see read_rect_with_progress().