1 files changed, 112 insertions, 0 deletions
diff --git a/Ryujinx.Audio/Renderer/Parameter/MixParameter.cs b/Ryujinx.Audio/Renderer/Parameter/MixParameter.cs
new file mode 100644
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+++ b/Ryujinx.Audio/Renderer/Parameter/MixParameter.cs
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+//
+// Copyright (c) 2019-2021 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.Common.Utilities;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Parameter
+{
+    /// <summary>
+    /// Input information for a mix.
+    /// </summary>
+    /// <remarks>Also used on the client side for mix tracking.</remarks>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct MixParameter
+    {
+        /// <summary>
+        /// Base volume of the mix.
+        /// </summary>
+        public float Volume;
+
+        /// <summary>
+        /// Target sample rate of the mix.
+        /// </summary>
+        public uint SampleRate;
+
+        /// <summary>
+        /// Target buffer count.
+        /// </summary>
+        public uint BufferCount;
+
+        /// <summary>
+        /// Set to true if in use.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool IsUsed;
+
+        /// <summary>
+        /// Set to true if it was changed.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool IsDirty;
+
+        /// <summary>
+        /// Reserved/padding.
+        /// </summary>
+        private ushort _reserved1;
+
+        /// <summary>
+        /// The id of the mix.
+        /// </summary>
+        public int MixId;
+
+        /// <summary>
+        /// The effect count. (client side)
+        /// </summary>
+        public uint EffectCount;
+
+        /// <summary>
+        /// The mix node id.
+        /// </summary>
+        public int NodeId;
+
+        /// <summary>
+        /// Reserved/padding.
+        /// </summary>
+        private ulong _reserved2;
+
+        /// <summary>
+        /// Mix buffer volumes storage.
+        /// </summary>
+        private MixVolumeArray _mixBufferVolumeArray;
+
+        /// <summary>
+        /// The mix to output the result of this mix.
+        /// </summary>
+        public int DestinationMixId;
+
+        /// <summary>
+        /// The splitter to output the result of this mix.
+        /// </summary>
+        public uint DestinationSplitterId;
+
+        /// <summary>
+        /// Reserved/padding.
+        /// </summary>
+        private uint _reserved3;
+
+        [StructLayout(LayoutKind.Sequential, Size = 4 * Constants.MixBufferCountMax * Constants.MixBufferCountMax, Pack = 1)]
+        private struct MixVolumeArray { }
+
+        /// <summary>
+        /// Mix buffer volumes.
+        /// </summary>
+        /// <remarks>Used when no splitter id is specified.</remarks>
+        public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixVolumeArray, float>(ref _mixBufferVolumeArray);
+    }
+}