metal: allow configuring color space and transfer function

src/compositor.rs

@@ -4,7 +4,7 @@ use {
     crate::{
         acceptor::{Acceptor, AcceptorError},
         async_engine::{AsyncEngine, Phase, SpawnedFuture},
-        backend::{self, Backend, Connector},
+        backend::{self, Backend, BackendColorSpace, BackendTransferFunction, Connector},
         backends::{
             dummy::{DummyBackend, DummyOutput},
             metal, x,
@@ -12,7 +12,7 @@ use {
         cli::{CliBackend, GlobalArgs, RunArgs},
         client::{ClientId, Clients},
         clientmem::{self, ClientMemError},
-        cmm::cmm_manager::ColorManager,
+        cmm::{cmm_manager::ColorManager, cmm_primaries::Primaries},
         config::ConfigProxy,
         cpu_worker::{CpuWorker, CpuWorkerError},
         damage::{DamageVisualizer, visualize_damage},
@@ -574,6 +574,12 @@ fn create_dummy_output(state: &Rc<State>) {
             0,
             &output_id,
             &persistent_state,
+            Vec::new(),
+            BackendTransferFunction::Default,
+            Vec::new(),
+            BackendColorSpace::Default,
+            Primaries::SRGB,
+            None,
         )),
         jay_outputs: Default::default(),
         workspaces: Default::default(),