Move solution and projects to src

src/Ryujinx.Graphics.Host1x/Host1xClass.cs

@@ -0,0 +1,33 @@
+using Ryujinx.Graphics.Device;
+using Ryujinx.Graphics.Gpu.Synchronization;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace Ryujinx.Graphics.Host1x
+{
+    public class Host1xClass : IDeviceState
+    {
+        private readonly SynchronizationManager _syncMgr;
+        private readonly DeviceState<Host1xClassRegisters> _state;
+
+        public Host1xClass(SynchronizationManager syncMgr)
+        {
+            _syncMgr = syncMgr;
+            _state = new DeviceState<Host1xClassRegisters>(new Dictionary<string, RwCallback>
+            {
+                { nameof(Host1xClassRegisters.WaitSyncpt32), new RwCallback(WaitSyncpt32, null) }
+            });
+        }
+
+        public int Read(int offset) => _state.Read(offset);
+        public void Write(int offset, int data) => _state.Write(offset, data);
+
+        private void WaitSyncpt32(int data)
+        {
+            uint syncpointId = (uint)(data & 0xFF);
+            uint threshold = _state.State.LoadSyncptPayload32;
+
+            _syncMgr.WaitOnSyncpoint(syncpointId, threshold, Timeout.InfiniteTimeSpan);
+        }
+    }
+}