pwgraster

Decoding of Printer Working Group Candidate Standard 5102.4-2012 raster images.

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

lib.rs:

PWG Raster

Decoding of Printer Working Group Candidate Standard 5102.4-2012 raster images.

Decoding multiple pages

next_page() will call a closure with a page structure that allows access to the header and page data. It will return Ok(None) when there are no more pages.

use std::fs::File;
use std::io::BufReader;
use pwgraster::PWGReader;
let infile = File::open("./color.jpg-4x6-srgb-8-600dpi.pwg")
                 .expect("Failed to open input");
let mut pwg = PWGReader::new(BufReader::new(infile), true).unwrap();
while pwg.next_page(|page| {
        let width = page.header().Width().unwrap();
        let height = page.header().Height().unwrap();
        println!("Page dimensions {}x{}", width, height);
        let mut buf = Vec::with_capacity(page.header().image_size_bytes().unwrap());
        println!("Reading page");
        page.unpack(&mut buf).unwrap();
        println!("Page read");
        // Do something with image data
        Ok(())
    }).unwrap().is_some() {}