1 files changed, 97 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Vic/VicDevice.cs b/Ryujinx.Graphics.Vic/VicDevice.cs
new file mode 100644
index 00000000..db4fe513
--- /dev/null
+++ b/Ryujinx.Graphics.Vic/VicDevice.cs
@@ -0,0 +1,97 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Device;
+using Ryujinx.Graphics.Gpu.Memory;
+using Ryujinx.Graphics.Vic.Image;
+using Ryujinx.Graphics.Vic.Types;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Vic
+{
+    public class VicDevice : IDeviceState
+    {
+        private readonly MemoryManager _gmm;
+        private readonly ResourceManager _rm;
+        private readonly DeviceState<VicRegisters> _state;
+
+        private PlaneOffsets _overrideOffsets;
+        private bool _hasOverride;
+
+        public VicDevice(MemoryManager gmm)
+        {
+            _gmm = gmm;
+            _rm = new ResourceManager(gmm, new BufferPool<Pixel>(), new BufferPool<byte>());
+            _state = new DeviceState<VicRegisters>(new Dictionary<string, RwCallback>
+            {
+                { nameof(VicRegisters.Execute), new RwCallback(Execute, null) }
+            });
+        }
+
+        /// <summary>
+        /// Overrides all input surfaces with a custom surface.
+        /// </summary>
+        /// <param name="lumaOffset">Offset of the luma plane or packed data for this surface</param>
+        /// <param name="chromaUOffset">Offset of the U chroma plane (for planar formats) or both chroma planes (for semiplanar formats)</param>
+        /// <param name="chromaVOffset">Offset of the V chroma plane for planar formats</param>
+        public void SetSurfaceOverride(uint lumaOffset, uint chromaUOffset, uint chromaVOffset)
+        {
+            _overrideOffsets.LumaOffset = lumaOffset;
+            _overrideOffsets.ChromaUOffset = chromaUOffset;
+            _overrideOffsets.ChromaVOffset = chromaVOffset;
+            _hasOverride = true;
+        }
+
+        /// <summary>
+        /// Disables overriding input surfaces.
+        /// </summary>
+        /// <remarks>
+        /// Surface overrides are disabled by default.
+        /// Call this if you previously called <see cref="SetSurfaceOverride(uint, uint, uint)"/> and which to disable it.
+        /// </remarks>
+        public void DisableSurfaceOverride()
+        {
+            _hasOverride = false;
+        }
+
+        public int Read(int offset) => _state.Read(offset);
+        public void Write(int offset, int data) => _state.Write(offset, data);
+
+        private void Execute(int data)
+        {
+            ConfigStruct config = ReadIndirect<ConfigStruct>(_state.State.SetConfigStructOffset);
+
+            using Surface output = new Surface(
+                _rm.SurfacePool,
+                config.OutputSurfaceConfig.OutSurfaceWidth + 1,
+                config.OutputSurfaceConfig.OutSurfaceHeight + 1);
+
+            for (int i = 0; i < config.SlotStruct.Length; i++)
+            {
+                ref SlotStruct slot = ref config.SlotStruct[i];
+
+                if (!slot.SlotConfig.SlotEnable)
+                {
+                    continue;
+                }
+
+                var offsets = _state.State.SetSurfacexSlotx[i][0];
+
+                if (_hasOverride)
+                {
+                    offsets = _overrideOffsets;
+                }
+
+                using Surface src = SurfaceReader.Read(_rm, ref slot.SlotSurfaceConfig, ref offsets);
+
+                Blender.BlendOne(output, src, ref slot);
+            }
+
+            SurfaceWriter.Write(_rm, output, ref config.OutputSurfaceConfig, ref _state.State.SetOutputSurface);
+        }
+
+        private T ReadIndirect<T>(uint offset) where T : unmanaged
+        {
+            return _gmm.Read<T>((ulong)offset << 8);
+        }
+    }
+}