moxcms/conversions/katana/
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
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27 * // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29use crate::conversions::katana::KatanaIntermediateStage;
30use crate::{CmsError, Lab, Xyz};
31
32#[derive(Default)]
33pub(crate) struct KatanaStageLabToXyz {}
34
35impl KatanaIntermediateStage<f32> for KatanaStageLabToXyz {
36    fn stage(&self, input: &mut Vec<f32>) -> Result<Vec<f32>, CmsError> {
37        for dst in input.chunks_exact_mut(3) {
38            let lab = Lab::new(dst[0], dst[1], dst[2]);
39            let xyz = lab.to_pcs_xyz();
40            dst[0] = xyz.x;
41            dst[1] = xyz.y;
42            dst[2] = xyz.z;
43        }
44        Ok(std::mem::take(input))
45    }
46}
47
48#[derive(Default)]
49pub(crate) struct KatanaStageXyzToLab {}
50
51impl KatanaIntermediateStage<f32> for KatanaStageXyzToLab {
52    fn stage(&self, input: &mut Vec<f32>) -> Result<Vec<f32>, CmsError> {
53        for dst in input.chunks_exact_mut(3) {
54            let xyz = Xyz::new(dst[0], dst[1], dst[2]);
55            let lab = Lab::from_pcs_xyz(xyz);
56            dst[0] = lab.l;
57            dst[1] = lab.a;
58            dst[2] = lab.b;
59        }
60        Ok(std::mem::take(input))
61    }
62}
moxcms/conversions/katana/xyz_lab.rs

moxcms/conversions/katana/
xyz_lab.rs
