Conversions

src/ext.rs

@@ -32,6 +32,9 @@ pub trait CIEXYZExt: Sized {
 
     /// Colorimetric space conversion.
     fn to_lab(&self, white_point: &CIEXYZ) -> CIELab;
+
+    /// Decodes a XYZ value, encoded on ICC convention
+    fn from_encoded(icc: &[u16; 3]) -> Self;
 }
 
 impl CIEXYZExt for CIEXYZ {
@@ -54,6 +57,14 @@ impl CIEXYZExt for CIEXYZ {
         }
         out
     }
+
+    fn from_encoded(icc: &[u16; 3]) -> Self {
+        let mut out = Self::default();
+        unsafe {
+            ffi::cmsXYZEncoded2Float(&mut out, icc.as_ptr());
+        }
+        out
+    }
 }
 
 /// White point
@@ -121,6 +132,12 @@ pub trait CIELabExt: Sized {
     /// Encodes a Lab value, from a CIELab value to ICC v2 convention.
     fn encoded_v2(&self) -> [u16; 3];
 
+    /// Decodes a Lab value, encoded on ICC v4 convention
+    fn from_encoded(icc: &[u16; 3]) -> Self;
+
+    /// Decodes a Lab value, encoded on ICC v2 convention
+    fn from_encoded_v2(icc: &[u16; 3]) -> Self;
+
     /// Colorimetric space conversion.
     fn to_xyz(&self, white_point: &CIEXYZ) -> CIEXYZ;
 }
@@ -178,6 +195,22 @@ impl CIELabExt for CIELab {
         out
     }
 
+    fn from_encoded(icc: &[u16; 3]) -> Self {
+        let mut out = Self::default();
+        unsafe {
+            ffi::cmsLabEncoded2Float(&mut out, icc.as_ptr());
+        }
+        out
+    }
+
+    fn from_encoded_v2(icc: &[u16; 3]) -> Self {
+        let mut out = Self::default();
+        unsafe {
+            ffi::cmsLabEncoded2FloatV2(&mut out, icc.as_ptr());
+        }
+        out
+    }
+
     fn to_xyz(&self, white_point: &CIEXYZ) -> CIEXYZ {
         let mut out = CIEXYZ::default();
         unsafe {