1 files changed, 82 insertions, 0 deletions
diff --git a/src/Ryujinx.Audio/Renderer/Server/Effect/CaptureBufferEffect.cs b/src/Ryujinx.Audio/Renderer/Server/Effect/CaptureBufferEffect.cs
new file mode 100644
index 00000000..c445798d
--- /dev/null
+++ b/src/Ryujinx.Audio/Renderer/Server/Effect/CaptureBufferEffect.cs
@@ -0,0 +1,82 @@
+using Ryujinx.Audio.Renderer.Common;
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Audio.Renderer.Parameter.Effect;
+using Ryujinx.Audio.Renderer.Server.MemoryPool;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using DspAddress = System.UInt64;
+
+namespace Ryujinx.Audio.Renderer.Server.Effect
+{
+    /// <summary>
+    /// Server state for an capture buffer effect.
+    /// </summary>
+    public class CaptureBufferEffect : BaseEffect
+    {
+        /// <summary>
+        /// The capture buffer parameter.
+        /// </summary>
+        public AuxiliaryBufferParameter Parameter;
+
+        /// <summary>
+        /// Capture buffer state.
+        /// </summary>
+        public AuxiliaryBufferAddresses State;
+
+        public override EffectType TargetEffectType => EffectType.CaptureBuffer;
+
+        public override DspAddress GetWorkBuffer(int index)
+        {
+            return WorkBuffers[index].GetReference(true);
+        }
+
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        {
+            Update(out updateErrorInfo, ref parameter, mapper);
+        }
+
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        {
+            Update(out updateErrorInfo, ref parameter, mapper);
+        }
+
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        {
+            Debug.Assert(IsTypeValid(ref parameter));
+
+            UpdateParameterBase(ref parameter);
+
+            Parameter = MemoryMarshal.Cast<byte, AuxiliaryBufferParameter>(parameter.SpecificData)[0];
+            IsEnabled = parameter.IsEnabled;
+
+            updateErrorInfo = new BehaviourParameter.ErrorInfo();
+
+            if (BufferUnmapped || parameter.IsNew)
+            {
+                ulong bufferSize = (ulong)Unsafe.SizeOf<int>() * Parameter.BufferStorageSize + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>();
+
+                bool sendBufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], Parameter.SendBufferInfoAddress, bufferSize);
+
+                BufferUnmapped = sendBufferUnmapped;
+
+                if (!BufferUnmapped)
+                {
+                    DspAddress sendDspAddress = WorkBuffers[0].GetReference(false);
+
+                    // NOTE: Nintendo directly interact with the CPU side structure in the processing of the DSP command.
+                    State.SendBufferInfo = sendDspAddress;
+                    State.SendBufferInfoBase = sendDspAddress + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>();
+                    State.ReturnBufferInfo = 0;
+                    State.ReturnBufferInfoBase = 0;
+                }
+            }
+        }
+
+        public override void UpdateForCommandGeneration()
+        {
+            UpdateUsageStateForCommandGeneration();
+        }
+    }
+}
+\ No newline at end of file