1 files changed, 79 insertions, 0 deletions
diff --git a/src/Ryujinx.Audio/Backends/Common/HardwareDeviceSessionOutputBase.cs b/src/Ryujinx.Audio/Backends/Common/HardwareDeviceSessionOutputBase.cs
new file mode 100644
index 00000000..6fb3bee0
--- /dev/null
+++ b/src/Ryujinx.Audio/Backends/Common/HardwareDeviceSessionOutputBase.cs
@@ -0,0 +1,79 @@
+using Ryujinx.Audio.Common;
+using Ryujinx.Audio.Integration;
+using Ryujinx.Memory;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Audio.Backends.Common
+{
+    public abstract class HardwareDeviceSessionOutputBase : IHardwareDeviceSession
+    {
+        public IVirtualMemoryManager MemoryManager { get; }
+        public SampleFormat RequestedSampleFormat { get; }
+        public uint RequestedSampleRate { get; }
+        public uint RequestedChannelCount { get; }
+
+        public HardwareDeviceSessionOutputBase(IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount)
+        {
+            MemoryManager = memoryManager;
+            RequestedSampleFormat = requestedSampleFormat;
+            RequestedSampleRate = requestedSampleRate;
+            RequestedChannelCount = requestedChannelCount;
+        }
+
+        private byte[] GetBufferSamples(AudioBuffer buffer)
+        {
+            if (buffer.DataPointer == 0)
+            {
+                return null;
+            }
+
+            byte[] data = new byte[buffer.DataSize];
+
+            MemoryManager.Read(buffer.DataPointer, data);
+
+            return data;
+        }
+
+        protected ulong GetSampleCount(AudioBuffer buffer)
+        {
+            return GetSampleCount((int)buffer.DataSize);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        protected ulong GetSampleCount(int dataSize)
+        {
+            return (ulong)BackendHelper.GetSampleCount(RequestedSampleFormat, (int)RequestedChannelCount, dataSize);
+        }
+
+        public abstract void Dispose();
+        public abstract void PrepareToClose();
+        public abstract void QueueBuffer(AudioBuffer buffer);
+        public abstract void SetVolume(float volume);
+        public abstract float GetVolume();
+        public abstract void Start();
+        public abstract void Stop();
+        public abstract ulong GetPlayedSampleCount();
+        public abstract bool WasBufferFullyConsumed(AudioBuffer buffer);
+        public virtual bool RegisterBuffer(AudioBuffer buffer)
+        {
+            return RegisterBuffer(buffer, GetBufferSamples(buffer));
+        }
+
+        public virtual bool RegisterBuffer(AudioBuffer buffer, byte[] samples)
+        {
+            if (samples == null)
+            {
+                return false;
+            }
+
+            if (buffer.Data == null)
+            {
+                buffer.Data = samples;
+            }
+
+            return true;
+        }
+
+        public virtual void UnregisterBuffer(AudioBuffer buffer) { }
+    }
+}
+\ No newline at end of file