Struct image::png::PNGDecoder [-] [+] [src]

pub struct PNGDecoder<R> {
    // some fields omitted
}

The representation of a PNG decoder

Currently does not support decoding of interlaced images

Methods

`impl<R: Read> PNGDecoder<R>`

`fn new(r: R) -> PNGDecoder<R>`

Create a new decoder that decodes from the stream r

`fn palette<'a>(&'a self) -> &'a [(u8, u8, u8)]`

Returns a reference to the color palette used for indexed color images. Each array element is a tuple of RGB values.

Trait Implementations

`impl<R: Read> ImageDecoder for PNGDecoder<R>`

`fn dimensions(&mut self) -> ImageResult<(u32, u32)>`

`fn colortype(&mut self) -> ImageResult<ColorType>`

`fn row_len(&mut self) -> ImageResult<usize>`

`fn read_scanline(&mut self, buf: &mut [u8]) -> ImageResult<u32>`

`fn read_image(&mut self) -> ImageResult<DecodingResult>`

`fn is_animated(&mut self) -> ImageResult<bool>`

`fn into_frames(self) -> ImageResult<Frames>`

`fn load_rect(&mut self, x: u32, y: u32, length: u32, width: u32) -> ImageResult<Vec<u8>>`