moxcms/conversions/
xyz_lab.rs

1/*
2 * // Copyright (c) Radzivon Bartoshyk 6/2025. All rights reserved.
3 * //
4 * // Redistribution and use in source and binary forms, with or without modification,
5 * // are permitted provided that the following conditions are met:
6 * //
7 * // 1.  Redistributions of source code must retain the above copyright notice, this
8 * // list of conditions and the following disclaimer.
9 * //
10 * // 2.  Redistributions in binary form must reproduce the above copyright notice,
11 * // this list of conditions and the following disclaimer in the documentation
12 * // and/or other materials provided with the distribution.
13 * //
14 * // 3.  Neither the name of the copyright holder nor the names of its
15 * // contributors may be used to endorse or promote products derived from
16 * // this software without specific prior written permission.
17 * //
18 * // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
22 * // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
25 * // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26 * // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29use crate::{CmsError, InPlaceStage, Lab, Xyz};
30
31#[derive(Default)]
32pub(crate) struct StageLabToXyz {}
33
34impl InPlaceStage for StageLabToXyz {
35    fn transform(&self, dst: &mut [f32]) -> Result<(), CmsError> {
36        for dst in dst.chunks_exact_mut(3) {
37            let lab = Lab::new(dst[0], dst[1], dst[2]);
38            let xyz = lab.to_pcs_xyz();
39            dst[0] = xyz.x;
40            dst[1] = xyz.y;
41            dst[2] = xyz.z;
42        }
43        Ok(())
44    }
45}
46
47#[derive(Default)]
48pub(crate) struct StageXyzToLab {}
49
50impl InPlaceStage for StageXyzToLab {
51    fn transform(&self, dst: &mut [f32]) -> Result<(), CmsError> {
52        for dst in dst.chunks_exact_mut(3) {
53            let xyz = Xyz::new(dst[0], dst[1], dst[2]);
54            let lab = Lab::from_pcs_xyz(xyz);
55            dst[0] = lab.l;
56            dst[1] = lab.a;
57            dst[2] = lab.b;
58        }
59        Ok(())
60    }
61}
moxcms/conversions/xyz_lab.rs

moxcms/conversions/
xyz_lab.rs
