Pre-invert matrices

Don't wait until runtime to invert matrices, invert them ahead of time.

Author: facelessuser

coloraide/spaces/orgb.py

@@ -17,7 +17,11 @@
     [0.8660, -0.8660, 0.0000]
 ]
 
-LC1C2_TO_RGB = alg.inv(RGB_TO_LC1C2)
+LC1C2_TO_RGB = [
+    [1.0000000000000002, 0.11399999999999999, 0.7436489607390301],
+    [1.0000000000000002, 0.11399999999999999, -0.4110854503464203],
+    [1.0000000000000002, -0.886, 0.1662817551963048]
+]
 
 
 def rotate(v: Vector, d: float) -> Vector:

coloraide/spaces/zcam_jmh.py

@@ -24,7 +24,11 @@
 
 DEF_ILLUMINANT_BI = util.xyz_to_absxyz(util.xy_to_xyz(cat.WHITES['2deg']['E']), yw=100.0)
 CAT02 = cat.CAT02.MATRIX
-CAT02_INV = alg.inv(CAT02)
+CAT02_INV = [
+    [1.0961238208355142, -0.27886900021828726, 0.18274517938277304],
+    [0.45436904197535916, 0.4735331543074118, 0.07209780371722913],
+    [-0.009627608738429355, -0.00569803121611342, 1.0153256399545427]
+]
 
 # ZCAM uses a slightly different matrix than Jzazbz
 # It updates how `Iz` is calculated.