Add DISPLAY - CIE-XYZ-D65_to_DisplayP3-HDR builtin transform.

References AcademySoftwareFoundation/OpenColorIO-Config-ACES#130

Signed-off-by: Thomas Mansencal <[email protected]>

Author: KelSolaar

src/OpenColorIO/transforms/builtins/Displays.cpp

@@ -358,6 +358,12 @@ void RegisterAll(BuiltinTransformRegistryImpl & registry) noexcept
         registry.addBuiltin("DISPLAY - CIE-XYZ-D65_to_DisplayP3", 
                             "Convert CIE XYZ (D65 white) to Apple Display P3",
                             CIE_XYZ_D65_to_DisplayP3_Functor);
+
+        // NOTE: This builtin is defined to be able to partition SDR and HDR view transforms under two separate
+        // displays rather than a single one.
+        registry.addBuiltin("DISPLAY - CIE-XYZ-D65_to_DisplayP3-HDR",
+                            "Convert CIE XYZ (D65 white) to Apple Display P3 (HDR)",
+                            CIE_XYZ_D65_to_DisplayP3_Functor);
     }
 
     {

tests/cpu/transforms/BuiltinTransform_tests.cpp

@@ -626,6 +626,9 @@ AllValues UnitTestValues
     { "DISPLAY - CIE-XYZ-D65_to_DisplayP3",
         { 1.0e-6f,
         { 0.5f, 0.4f, 0.3f }, { 0.882580907776f, 0.581526360743f,  0.5606367050000f } } },
+    { "DISPLAY - CIE-XYZ-D65_to_DisplayP3-HDR",
+        { 1.0e-6f,
+        { 0.5f, 0.4f, 0.3f }, { 0.882580907776f, 0.581526360743f,  0.5606367050000f } } },
 
     { "CURVE - ST-2084_to_LINEAR", 
         { 4.0e-5f,