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color-management: parametrize bt1886

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This commit is contained in:
Julian Orth 2025-09-08 20:37:47 +02:00
parent c37567f1cd
commit ef1727a186
8 changed files with 189 additions and 85 deletions
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19
src/theme.rs
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@ -1,7 +1,10 @@
#![expect(clippy::excessive_precision)]
use {
crate::{cmm::cmm_eotf::Eotf, utils::clonecell::CloneCell},
crate::{
cmm::cmm_eotf::{Eotf, bt1886_eotf_args, bt1886_inv_eotf_args},
utils::clonecell::CloneCell,
},
num_traits::Float,
std::{cell::Cell, cmp::Ordering, ops::Mul, sync::Arc},
};
@ -114,8 +117,13 @@ impl Color {
match eotf {
Eotf::Linear => convert!(linear),
Eotf::St2084Pq => convert!(st2084_pq),
Eotf::Bt1886 => convert!(gamma24),
Eotf::Bt1886(c) => {
let [a1, a2, a3, a4] = bt1886_eotf_args(c);
let bt1886 = |c: f32| -> f32 { a1 * ((a2 * c + a3).powf(2.4) - a4) };
convert!(bt1886)
}
Eotf::Gamma22 => convert!(gamma22),
Eotf::Gamma24 => convert!(gamma24),
Eotf::Gamma28 => convert!(gamma28),
Eotf::St240 => convert!(st240),
Eotf::Log100 => convert!(log100),
@ -244,8 +252,13 @@ impl Color {
match eotf {
Eotf::Linear => convert!(linear),
Eotf::St2084Pq => convert!(st2084_pq),
Eotf::Bt1886 => convert!(gamma24),
Eotf::Bt1886(c) => {
let [a1, a2, a3, a4] = bt1886_inv_eotf_args(c);
let bt1886 = |c: f32| -> f32 { a1 * ((a2 * c + a3).powf(1.0 / 2.4) - a4) };
convert!(bt1886)
}
Eotf::Gamma22 => convert!(gamma22),
Eotf::Gamma24 => convert!(gamma24),
Eotf::Gamma28 => convert!(gamma28),
Eotf::St240 => convert!(st240),
Eotf::Log100 => convert!(log100),