1 files changed, 72 insertions, 0 deletions
diff --git a/Ryujinx.Audio.Renderer/Dsp/Command/DepopPrepareCommand.cs b/Ryujinx.Audio.Renderer/Dsp/Command/DepopPrepareCommand.cs
new file mode 100644
index 00000000..21ded53a
--- /dev/null
+++ b/Ryujinx.Audio.Renderer/Dsp/Command/DepopPrepareCommand.cs
@@ -0,0 +1,72 @@
+//
+// Copyright (c) 2019-2020 Ryujinx
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+using Ryujinx.Audio.Renderer.Common;
+using System;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class DepopPrepareCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.DepopPrepare;
+
+        public ulong EstimatedProcessingTime { get; set; }
+
+        public uint MixBufferCount { get; }
+
+        public ushort[] OutputBufferIndices { get; }
+
+        public Memory<VoiceUpdateState> State { get; }
+        public Memory<float> DepopBuffer { get; }
+
+        public DepopPrepareCommand(Memory<VoiceUpdateState> state, Memory<float> depopBuffer, uint mixBufferCount, uint bufferOffset, int nodeId, bool enabled)
+        {
+            Enabled = enabled;
+            NodeId = nodeId;
+            MixBufferCount = mixBufferCount;
+
+            OutputBufferIndices = new ushort[RendererConstants.MixBufferCountMax];
+
+            for (int i = 0; i < RendererConstants.MixBufferCountMax; i++)
+            {
+                OutputBufferIndices[i] = (ushort)(bufferOffset + i);
+            }
+
+            State = state;
+            DepopBuffer = depopBuffer;
+        }
+
+        public void Process(CommandList context)
+        {
+            ref VoiceUpdateState state = ref State.Span[0];
+
+            for (int i = 0; i < MixBufferCount; i++)
+            {
+                if (state.LastSamples[i] != 0)
+                {
+                    DepopBuffer.Span[OutputBufferIndices[i]] += state.LastSamples[i];
+
+                    state.LastSamples[i] = 0;
+                }
+            }
+        }
+    }
+}