gecko-dev/gfx/qcms
Jeff Muizelaar 812f96aeba Bug 1697818 - Drop handrolled NEON SIMD wrappers. r=aosmond
We require Rust 1.50 now which is new enough to not need these
wrappers anymore.

Differential Revision: https://phabricator.services.mozilla.com/D108337
2021-03-14 19:44:57 +00:00
..
fuzz Bug 1697858 - Use an additional src profile when fuzzing. r=aosmond 2021-03-11 18:45:05 +00:00
profiles Bug 1679621. Add a test for v4 output. r=aosmond 2020-11-30 22:50:40 +00:00
src Bug 1697818 - Drop handrolled NEON SIMD wrappers. r=aosmond 2021-03-14 19:44:57 +00:00
Cargo.toml Bug 1685214 - Add some documentation to qcms and bump the crate version. r=aosmond 2021-01-06 01:36:30 +00:00
README.md Bug 1685311 - Flesh out the documentation a little. r=aosmond 2021-01-06 17:11:21 +00:00
build.rs
moz.build
qcms.h
qcmsint.h
qcmstypes.h

README.md

qcms

Crates.io Documentation

Firefox's library for transforming image data between ICC profiles.

Example

    // Decode the jpeg
    let mut d = jpeg_decoder::Decoder::new(std::fs::File::open("/Users/jrmuizel/Desktop/DSCF2460.jpg").unwrap());
    let mut data = d.decode().unwrap();
    let info = d.info().unwrap();

    // Extract the profile after decode
    let profile = d.icc_profile().unwrap();

    // Create a new qcms Profile
    let input = qcms::Profile::new_from_slice(&profile).unwrap();
    let mut output = qcms::Profile::new_sRGB();
    output.precache_output_transform();

    // Create a transform between input and output profiles and apply it.
    let xfm = qcms::Transform::new(&input, &output, qcms::DataType::RGB8, qcms::Intent::default()).unwrap();
    xfm.apply(&mut data);

    // write the result to a PNG
    let mut encoder = png::Encoder::new(std::fs::File::create("out.png").unwrap(), info.width as u32, info.height as u32);
    encoder.set_color(png::ColorType::Rgb);
    encoder.set_srgb(png::SrgbRenderingIntent::Perceptual);
    let mut writer = encoder.write_header().unwrap();
    writer.write_image_data(&data).unwrap(); // Save

This library was originally written in C, was converted to Rust using c2rust, and then refactored to be mostly safe and more idiomatic Rust.