Move AMD to GPU.AMDAdrenaline

PowerControl/Helpers/AMD/AMDAdrenaline.cs

@@ -0,0 +1,44 @@
+using Microsoft.Win32;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PowerControl.Helpers.GPU
+{
+    internal class AMDAdrenaline
+    {
+        // TODO: This CLSID is likely to change over time and be broken
+        // pnputil /enum-devices /class Display
+        const string GPUDriverKey = "SYSTEM\\CurrentControlSet\\Control\\Class\\{4d36e968-e325-11ce-bfc1-08002be10318}\\0000";
+        const string DriverDesc = "DriverDesc";
+        const string ExpectedDriverDesc = "AMD Custom GPU 0405";
+        const string GPUScaling = "GPUScaling00";
+
+        internal static bool IsGPUScalingEnabled()
+        {
+            try
+            {
+                var registry = Registry.LocalMachine.OpenSubKey(GPUDriverKey);
+                if (registry == null)
+                    return false;
+
+                var driverDesc = registry.GetValue(DriverDesc);
+                if (driverDesc is string && (string)driverDesc != ExpectedDriverDesc)
+                    return false;
+
+                var scalingBytes = registry.GetValue(GPUScaling);
+                if (scalingBytes is not byte[])
+                    return false;
+
+                var scaling = BitConverter.ToUInt32((byte[])scalingBytes);
+                return scaling == 1;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+    }
+}