cmm: add color-management module

src/cmm/cmm_primaries.rs

@@ -0,0 +1,121 @@
+use {crate::utils::ordered_float::F64, std::hash::Hash};
+
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+pub enum NamedPrimaries {
+    Srgb,
+    #[expect(dead_code)]
+    PalM,
+    #[expect(dead_code)]
+    Pal,
+    #[expect(dead_code)]
+    Ntsc,
+    #[expect(dead_code)]
+    GenericFilm,
+    #[expect(dead_code)]
+    Bt2020,
+    #[expect(dead_code)]
+    Cie1931Xyz,
+    #[expect(dead_code)]
+    DciP3,
+    #[expect(dead_code)]
+    DisplayP3,
+    #[expect(dead_code)]
+    AdobeRgb,
+}
+
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+pub struct Primaries {
+    pub r: (F64, F64),
+    pub g: (F64, F64),
+    pub b: (F64, F64),
+    pub wp: (F64, F64),
+}
+
+impl Primaries {
+    pub const SRGB: Self = Self {
+        r: (F64(0.64), F64(0.33)),
+        g: (F64(0.3), F64(0.6)),
+        b: (F64(0.15), F64(0.06)),
+        wp: (F64(0.3127), F64(0.3290)),
+    };
+
+    pub const PAL_M: Self = Self {
+        r: (F64(0.67), F64(0.33)),
+        g: (F64(0.21), F64(0.71)),
+        b: (F64(0.14), F64(0.08)),
+        wp: (F64(0.310), F64(0.316)),
+    };
+
+    pub const PAL: Self = Self {
+        r: (F64(0.64), F64(0.33)),
+        g: (F64(0.29), F64(0.60)),
+        b: (F64(0.15), F64(0.06)),
+        wp: (F64(0.3127), F64(0.3290)),
+    };
+
+    pub const NTSC: Self = Self {
+        r: (F64(0.630), F64(0.340)),
+        g: (F64(0.310), F64(0.595)),
+        b: (F64(0.155), F64(0.070)),
+        wp: (F64(0.3127), F64(0.3290)),
+    };
+
+    pub const GENERIC_FILM: Self = Self {
+        r: (F64(0.681), F64(0.319)),
+        g: (F64(0.243), F64(0.692)),
+        b: (F64(0.145), F64(0.049)),
+        wp: (F64(0.310), F64(0.316)),
+    };
+
+    pub const BT2020: Self = Self {
+        r: (F64(0.708), F64(0.292)),
+        g: (F64(0.170), F64(0.797)),
+        b: (F64(0.131), F64(0.046)),
+        wp: (F64(0.3127), F64(0.3290)),
+    };
+
+    pub const CIE1931_XYZ: Self = Self {
+        r: (F64(1.0), F64(0.0)),
+        g: (F64(0.0), F64(1.0)),
+        b: (F64(0.0), F64(0.0)),
+        wp: (F64(1.0 / 3.0), F64(1.0 / 3.0)),
+    };
+
+    pub const DCI_P3: Self = Self {
+        r: (F64(0.680), F64(0.320)),
+        g: (F64(0.265), F64(0.690)),
+        b: (F64(0.150), F64(0.060)),
+        wp: (F64(0.314), F64(0.351)),
+    };
+
+    pub const DISPLAY_P3: Self = Self {
+        r: (F64(0.680), F64(0.320)),
+        g: (F64(0.265), F64(0.690)),
+        b: (F64(0.150), F64(0.060)),
+        wp: (F64(0.3127), F64(0.3290)),
+    };
+
+    pub const ADOBE_RGB: Self = Self {
+        r: (F64(0.64), F64(0.33)),
+        g: (F64(0.21), F64(0.71)),
+        b: (F64(0.15), F64(0.06)),
+        wp: (F64(0.3127), F64(0.3290)),
+    };
+}
+impl NamedPrimaries {
+    #[expect(dead_code)]
+    pub const fn primaries(self) -> Primaries {
+        match self {
+            NamedPrimaries::Srgb => Primaries::SRGB,
+            NamedPrimaries::PalM => Primaries::PAL_M,
+            NamedPrimaries::Pal => Primaries::PAL,
+            NamedPrimaries::Ntsc => Primaries::NTSC,
+            NamedPrimaries::GenericFilm => Primaries::GENERIC_FILM,
+            NamedPrimaries::Bt2020 => Primaries::BT2020,
+            NamedPrimaries::Cie1931Xyz => Primaries::CIE1931_XYZ,
+            NamedPrimaries::DciP3 => Primaries::DCI_P3,
+            NamedPrimaries::DisplayP3 => Primaries::DISPLAY_P3,
+            NamedPrimaries::AdobeRgb => Primaries::ADOBE_RGB,
+        }
+    }
+}