Struct repng::Options

pub struct Options {
    pub level: Compression,
    pub width: u32,
    pub height: u32,
    pub depth: u8,
    pub format: ColorFormat,
    pub buffer: usize,
}

Image properties and compression options.

Fields

level: Compression

The compression level.

width: u32

The width of the image, in pixels.

height: u32

The height of the image, in pixels.

depth: u8

The number of bits in each channel.

format: ColorFormat

The format of the image.

buffer: usize

The size of the compressed data buffer.

This value determines the maximum size of an IDAT chunk.

Methods

impl Options

pub fn smallest(width: u32, height: u32) -> Self

Specifies an 8-bit RGBA image optimizing for image size.

pub fn fastest(width: u32, height: u32) -> Self

Specifies an 8-bit RGBA image optimizing for encoding speed.

pub fn build<W>(&self, sink: W) -> Result<Encoder<W, Standard>> where
    W: Write, 

Make a new encoder with these options and the default filter.

To customize the filter as well, see Encoder::new.

pub fn stride(&self) -> usize

The number of bytes occupied by a single row of the uncompressed image.

Trait Implementations

impl<'a> From<&'a Options> for None

fn from(_: &Options) -> Self

Performs the conversion.

impl<'a> From<&'a Options> for Standard

fn from(opts: &Options) -> Self

Performs the conversion.

impl Debug for Options

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.