1 files changed, 0 insertions, 230 deletions
diff --git a/Ryujinx.Audio.Backends.SDL2/SDL2HardwareDeviceSession.cs b/Ryujinx.Audio.Backends.SDL2/SDL2HardwareDeviceSession.cs
deleted file mode 100644
index 14310b93..00000000
--- a/Ryujinx.Audio.Backends.SDL2/SDL2HardwareDeviceSession.cs
+++ /dev/null
@@ -1,230 +0,0 @@
-using Ryujinx.Audio.Backends.Common;
-using Ryujinx.Audio.Common;
-using Ryujinx.Common.Logging;
-using Ryujinx.Memory;
-using System;
-using System.Collections.Concurrent;
-using System.Threading;
-
-using static SDL2.SDL;
-
-namespace Ryujinx.Audio.Backends.SDL2
-{
-    class SDL2HardwareDeviceSession : HardwareDeviceSessionOutputBase
-    {
-        private SDL2HardwareDeviceDriver _driver;
-        private ConcurrentQueue<SDL2AudioBuffer> _queuedBuffers;
-        private DynamicRingBuffer _ringBuffer;
-        private ulong _playedSampleCount;
-        private ManualResetEvent _updateRequiredEvent;
-        private uint _outputStream;
-        private bool _hasSetupError;
-        private SDL_AudioCallback _callbackDelegate;
-        private int _bytesPerFrame;
-        private uint _sampleCount;
-        private bool _started;
-        private float _volume;
-        private ushort _nativeSampleFormat;
-
-        public SDL2HardwareDeviceSession(SDL2HardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount, float requestedVolume) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
-        {
-            _driver = driver;
-            _updateRequiredEvent = _driver.GetUpdateRequiredEvent();
-            _queuedBuffers = new ConcurrentQueue<SDL2AudioBuffer>();
-            _ringBuffer = new DynamicRingBuffer();
-            _callbackDelegate = Update;
-            _bytesPerFrame = BackendHelper.GetSampleSize(RequestedSampleFormat) * (int)RequestedChannelCount;
-            _nativeSampleFormat = SDL2HardwareDeviceDriver.GetSDL2Format(RequestedSampleFormat);
-            _sampleCount = uint.MaxValue;
-            _started = false;
-            _volume = requestedVolume;
-        }
-
-        private void EnsureAudioStreamSetup(AudioBuffer buffer)
-        {
-            uint bufferSampleCount = (uint)GetSampleCount(buffer);
-            bool needAudioSetup = (_outputStream == 0 && !_hasSetupError) ||
-                (bufferSampleCount >= Constants.TargetSampleCount && bufferSampleCount < _sampleCount);
-
-            if (needAudioSetup)
-            {
-                _sampleCount = Math.Max(Constants.TargetSampleCount, bufferSampleCount);
-
-                uint newOutputStream = SDL2HardwareDeviceDriver.OpenStream(RequestedSampleFormat, RequestedSampleRate, RequestedChannelCount, _sampleCount, _callbackDelegate);
-
-                _hasSetupError = newOutputStream == 0;
-
-                if (!_hasSetupError)
-                {
-                    if (_outputStream != 0)
-                    {
-                        SDL_CloseAudioDevice(_outputStream);
-                    }
-
-                    _outputStream = newOutputStream;
-
-                    SDL_PauseAudioDevice(_outputStream, _started ? 0 : 1);
-
-                    Logger.Info?.Print(LogClass.Audio, $"New audio stream setup with a target sample count of {_sampleCount}");
-                }
-            }
-        }
-
-        private unsafe void Update(IntPtr userdata, IntPtr stream, int streamLength)
-        {
-            Span<byte> streamSpan = new Span<byte>((void*)stream, streamLength);
-
-            int maxFrameCount = (int)GetSampleCount(streamLength);
-            int bufferedFrames = _ringBuffer.Length / _bytesPerFrame;
-
-            int frameCount = Math.Min(bufferedFrames, maxFrameCount);
-
-            if (frameCount == 0)
-            {
-                // SDL2 left the responsibility to the user to clear the buffer.
-                streamSpan.Fill(0);
-
-                return;
-            }
-
-            byte[] samples = new byte[frameCount * _bytesPerFrame];
-
-            _ringBuffer.Read(samples, 0, samples.Length);
-
-            fixed (byte* p = samples)
-            {
-                IntPtr pStreamSrc = (IntPtr)p;
-
-                // Zero the dest buffer
-                streamSpan.Fill(0);
-
-                // Apply volume to written data
-                SDL_MixAudioFormat(stream, pStreamSrc, _nativeSampleFormat, (uint)samples.Length, (int)(_volume * SDL_MIX_MAXVOLUME));
-            }
-
-            ulong sampleCount = GetSampleCount(samples.Length);
-
-            ulong availaibleSampleCount = sampleCount;
-
-            bool needUpdate = false;
-
-            while (availaibleSampleCount > 0 && _queuedBuffers.TryPeek(out SDL2AudioBuffer driverBuffer))
-            {
-                ulong sampleStillNeeded = driverBuffer.SampleCount - Interlocked.Read(ref driverBuffer.SamplePlayed);
-                ulong playedAudioBufferSampleCount = Math.Min(sampleStillNeeded, availaibleSampleCount);
-
-                ulong currentSamplePlayed = Interlocked.Add(ref driverBuffer.SamplePlayed, playedAudioBufferSampleCount);
-                availaibleSampleCount -= playedAudioBufferSampleCount;
-
-                if (currentSamplePlayed == driverBuffer.SampleCount)
-                {
-                    _queuedBuffers.TryDequeue(out _);
-
-                    needUpdate = true;
-                }
-
-                Interlocked.Add(ref _playedSampleCount, playedAudioBufferSampleCount);
-            }
-
-            // Notify the output if needed.
-            if (needUpdate)
-            {
-                _updateRequiredEvent.Set();
-            }
-        }
-
-        public override ulong GetPlayedSampleCount()
-        {
-            return Interlocked.Read(ref _playedSampleCount);
-        }
-
-        public override float GetVolume()
-        {
-            return _volume;
-        }
-
-        public override void PrepareToClose() { }
-
-        public override void QueueBuffer(AudioBuffer buffer)
-        {
-            EnsureAudioStreamSetup(buffer);
-
-            if (_outputStream != 0)
-            {
-                SDL2AudioBuffer driverBuffer = new SDL2AudioBuffer(buffer.DataPointer, GetSampleCount(buffer));
-
-                _ringBuffer.Write(buffer.Data, 0, buffer.Data.Length);
-
-                _queuedBuffers.Enqueue(driverBuffer);
-            }
-            else
-            {
-                Interlocked.Add(ref _playedSampleCount, GetSampleCount(buffer));
-
-                _updateRequiredEvent.Set();
-            }
-        }
-
-        public override void SetVolume(float volume)
-        {
-            _volume = volume;
-        }
-
-        public override void Start()
-        {
-            if (!_started)
-            {
-                if (_outputStream != 0)
-                {
-                    SDL_PauseAudioDevice(_outputStream, 0);
-                }
-
-                _started = true;
-            }
-        }
-
-        public override void Stop()
-        {
-            if (_started)
-            {
-                if (_outputStream != 0)
-                {
-                    SDL_PauseAudioDevice(_outputStream, 1);
-                }
-
-                _started = false;
-            }
-        }
-
-        public override void UnregisterBuffer(AudioBuffer buffer) { }
-
-        public override bool WasBufferFullyConsumed(AudioBuffer buffer)
-        {
-            if (!_queuedBuffers.TryPeek(out SDL2AudioBuffer driverBuffer))
-            {
-                return true;
-            }
-
-            return driverBuffer.DriverIdentifier != buffer.DataPointer;
-        }
-
-        protected virtual void Dispose(bool disposing)
-        {
-            if (disposing && _driver.Unregister(this))
-            {
-                PrepareToClose();
-                Stop();
-
-                if (_outputStream != 0)
-                {
-                    SDL_CloseAudioDevice(_outputStream);
-                }
-            }
-        }
-
-        public override void Dispose()
-        {
-            Dispose(true);
-        }
-    }
-}