lbl: Migrate service to Horizon (#5628)

* lbl: Migrate service to Horizon

* Fix formatting

* Addresses gdkchan's feedback

* Fix comments

2 files changed, 63 insertions, 0 deletions

diff --git a/src/Ryujinx.Horizon/Sdk/Lbl/ILblController.cs b/src/Ryujinx.Horizon/Sdk/Lbl/ILblController.cs
new file mode 100644
index 00000000..594722e9
--- /dev/null
+++ b/src/Ryujinx.Horizon/Sdk/Lbl/ILblController.cs
@@ -0,0 +1,20 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Sdk.Lbl
+{
+    interface ILblController : IServiceObject
+    {
+        Result SetBrightnessReflectionDelayLevel(float unknown0, float unknown1);
+        Result GetBrightnessReflectionDelayLevel(out float unknown1, float unknown0);
+        Result SetCurrentBrightnessMapping(float unknown0, float unknown1, float unknown2);
+        Result GetCurrentBrightnessMapping(out float unknown0, out float unknown1, out float unknown2);
+        Result SetCurrentAmbientLightSensorMapping(float unknown0, float unknown1, float unknown2);
+        Result GetCurrentAmbientLightSensorMapping(out float unknown0, out float unknown1, out float unknown2);
+        Result SetCurrentBrightnessSettingForVrMode(float currentBrightnessSettingForVrMode);
+        Result GetCurrentBrightnessSettingForVrMode(out float currentBrightnessSettingForVrMode);
+        Result EnableVrMode();
+        Result DisableVrMode();
+        Result IsVrModeEnabled(out bool vrModeEnabled);
+    }
+}
diff --git a/src/Ryujinx.Horizon/Sdk/Lbl/LblApi.cs b/src/Ryujinx.Horizon/Sdk/Lbl/LblApi.cs
new file mode 100644
index 00000000..843a9acd
--- /dev/null
+++ b/src/Ryujinx.Horizon/Sdk/Lbl/LblApi.cs
@@ -0,0 +1,43 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sm;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Lbl
+{
+    public class LblApi : IDisposable
+    {
+        private const string LblName = "lbl";
+
+        private int _sessionHandle;
+
+        public LblApi()
+        {
+            using var smApi = new SmApi();
+
+            smApi.Initialize();
+            smApi.GetServiceHandle(out _sessionHandle, ServiceName.Encode(LblName)).AbortOnFailure();
+        }
+
+        public Result EnableVrMode()
+        {
+            return ServiceUtil.SendRequest(out _, _sessionHandle, 26, sendPid: false, ReadOnlySpan<byte>.Empty);
+        }
+
+        public Result DisableVrMode()
+        {
+            return ServiceUtil.SendRequest(out _, _sessionHandle, 27, sendPid: false, ReadOnlySpan<byte>.Empty);
+        }
+
+        public void Dispose()
+        {
+            if (_sessionHandle != 0)
+            {
+                HorizonStatic.Syscall.CloseHandle(_sessionHandle);
+
+                _sessionHandle = 0;
+            }
+
+            GC.SuppressFinalize(this);
+        }
+    }
+}