1 files changed, 119 insertions, 0 deletions
diff --git a/Ryujinx.Audio.Renderer/Server/Sink/BaseSink.cs b/Ryujinx.Audio.Renderer/Server/Sink/BaseSink.cs
new file mode 100644
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--- /dev/null
+++ b/Ryujinx.Audio.Renderer/Server/Sink/BaseSink.cs
@@ -0,0 +1,119 @@
+//
+// 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 Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Audio.Renderer.Server.MemoryPool;
+using System.Diagnostics;
+using static Ryujinx.Audio.Renderer.Common.BehaviourParameter;
+
+namespace Ryujinx.Audio.Renderer.Server.Sink
+{
+    /// <summary>
+    /// Base class used for server information of a sink.
+    /// </summary>
+    public class BaseSink
+    {
+        /// <summary>
+        /// The type of this <see cref="BaseSink"/>.
+        /// </summary>
+        public SinkType Type;
+
+        /// <summary>
+        /// Set to true if the sink is used.
+        /// </summary>
+        public bool IsUsed;
+
+        /// <summary>
+        /// Set to true if the sink need to be skipped because of invalid state.
+        /// </summary>
+        public bool ShouldSkip;
+
+        /// <summary>
+        /// The node id of the sink.
+        /// </summary>
+        public int NodeId;
+
+        /// <summary>
+        /// Create a new <see cref="BaseSink"/>.
+        /// </summary>
+        public BaseSink()
+        {
+            CleanUp();
+        }
+
+        /// <summary>
+        /// Clean up the internal state of the <see cref="BaseSink"/>.
+        /// </summary>
+        public virtual void CleanUp()
+        {
+            Type = TargetSinkType;
+            IsUsed = false;
+            ShouldSkip = false;
+        }
+
+        /// <summary>
+        /// The target <see cref="SinkType"/> handled by this <see cref="BaseSink"/>.
+        /// </summary>
+        public virtual SinkType TargetSinkType => SinkType.Invalid;
+
+        /// <summary>
+        /// Check if the <see cref="SinkType"/> sent by the user match the internal <see cref="SinkType"/>.
+        /// </summary>
+        /// <param name="parameter">The user parameter.</param>
+        /// <returns>Return true, if the <see cref="SinkType"/> sent by the user match the internal <see cref="SinkType"/>.</returns>
+        public bool IsTypeValid(ref SinkInParameter parameter)
+        {
+            return parameter.Type == TargetSinkType;
+        }
+
+        /// <summary>
+        /// Update the <see cref="BaseSink"/> state during command generation.
+        /// </summary>
+        public virtual void UpdateForCommandGeneration()
+        {
+            Debug.Assert(Type == TargetSinkType);
+        }
+
+        /// <summary>
+        /// Update the internal common parameters from user parameter.
+        /// </summary>
+        /// <param name="parameter">The user parameter.</param>
+        protected void UpdateStandardParameter(ref SinkInParameter parameter)
+        {
+            if (IsUsed != parameter.IsUsed)
+            {
+                IsUsed = parameter.IsUsed;
+                NodeId = parameter.NodeId;
+            }
+        }
+
+        /// <summary>
+        /// Update the internal state from user parameter.
+        /// </summary>
+        /// <param name="errorInfo">The possible <see cref="ErrorInfo"/> that was generated.</param>
+        /// <param name="parameter">The user parameter.</param>
+        /// <param name="outStatus">The user output status.</param>
+        /// <param name="mapper">The mapper to use.</param>
+        public virtual void Update(out ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
+        {
+            Debug.Assert(IsTypeValid(ref parameter));
+
+            errorInfo = new ErrorInfo();
+        }
+    }
+}