Crate zune_ppm

A Portable Pixmap and Portable FloatMap Format Decoder and Encoder

This crate supports decoding and encoding of the following ppm formats

Specification

here

Format	Decoder	Encoder
P1-P3	No	No
P5	Yes	Yes
P6	Yes	Yes
P7	Yes	Yes
PFM	Yes	No

Example

• Decoding PPM

 use zune_ppm::PPMDecoder;
 use zune_ppm::PPMDecodeErrors;
 use zune_core::result::DecodingResult;

 fn main()->Result<(),PPMDecodeErrors>{
    let mut decoder = PPMDecoder::new(&[]);
    let pix = decoder.decode()?;
    match pix {  
        DecodingResult::U8(_) => {
            // deal with 8 bit images
        }
        DecodingResult::U16(_) => {
            // deal with 16 bit images
        }
        DecodingResult::F32(_) => {
            // deal with 32 bit images (PFM)
        },
        _=>unreachable!()};
 Ok(())
 }

Structs

• PPMDecoder
  An instance of a PPM decoder
• PPMEncoder
  A PPM encoder

Enums

• PPMDecodeErrors
  Decoding errors that may occur
• PPMEncodeErrors
  Errors occurring during encoding

Functions

• max_out_size
  Gives expected minimum size for which the encoder wil guarrantee that the given raw bytes will fit