Haydn: Part 1 (#2007)

* Haydn: Part 1

Based on my reverse of audio 11.0.0.

As always, core implementation under LGPLv3 for the same reasons as for Amadeus.

This place the bases of a more flexible audio system while making audout & audin accurate.

This have the following improvements:
- Complete reimplementation of audout and audin.
- Audin currently only have a dummy backend.
- Dramatically reduce CPU usage by up to 50% in common cases (SoundIO and OpenAL).
- Audio Renderer now can output to 5.1 devices when supported.
- Audio Renderer init its backend on demand instead of keeping two up all the time.
- All backends implementation are now in their own project.
- Ryujinx.Audio.Renderer was renamed Ryujinx.Audio and was refactored because of this.

As a note, games having issues with OpenAL haven't improved and will not
because of OpenAL design (stopping when buffers finish playing causing
possible audio "pops" when buffers are very small).

* Update for latest hexkyz's edits on Switchbrew

* audren: Rollback channel configuration changes

* Address gdkchan's comments

* Fix typo in OpenAL backend driver

* Address last comments

* Fix a nit

* Address gdkchan's comments

2 files changed, 0 insertions, 242 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Audio/AudioOutManager/IAudioOut.cs b/Ryujinx.HLE/HOS/Services/Audio/AudioOutManager/IAudioOut.cs
deleted file mode 100644
index c941cf4f..00000000
--- a/Ryujinx.HLE/HOS/Services/Audio/AudioOutManager/IAudioOut.cs
+++ /dev/null
@@ -1,228 +0,0 @@
-using Ryujinx.Audio;
-using Ryujinx.Cpu;
-using Ryujinx.HLE.HOS.Ipc;
-using Ryujinx.HLE.HOS.Kernel;
-using Ryujinx.HLE.HOS.Kernel.Common;
-using Ryujinx.HLE.HOS.Kernel.Threading;
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.HLE.HOS.Services.Audio.AudioOutManager
-{
-    class IAudioOut : IpcService, IDisposable
-    {
-        private readonly KernelContext _kernelContext;
-        private readonly IAalOutput    _audioOut;
-        private readonly KEvent        _releaseEvent;
-        private          int           _releaseEventHandle;
-        private readonly int           _track;
-        private readonly int           _clientHandle;
-
-        public IAudioOut(KernelContext kernelContext, IAalOutput audioOut, KEvent releaseEvent, int track, int clientHandle)
-        {
-            _kernelContext = kernelContext;
-            _audioOut      = audioOut;
-            _releaseEvent  = releaseEvent;
-            _track         = track;
-            _clientHandle  = clientHandle;
-        }
-
-        [Command(0)]
-        // GetAudioOutState() -> u32 state
-        public ResultCode GetAudioOutState(ServiceCtx context)
-        {
-            context.ResponseData.Write((int)_audioOut.GetState(_track));
-
-            return ResultCode.Success;
-        }
-
-        [Command(1)]
-        // StartAudioOut()
-        public ResultCode StartAudioOut(ServiceCtx context)
-        {
-            _audioOut.Start(_track);
-
-            return ResultCode.Success;
-        }
-
-        [Command(2)]
-        // StopAudioOut()
-        public ResultCode StopAudioOut(ServiceCtx context)
-        {
-            _audioOut.Stop(_track);
-
-            return ResultCode.Success;
-        }
-
-        [Command(3)]
-        // AppendAudioOutBuffer(u64 tag, buffer<nn::audio::AudioOutBuffer, 5>)
-        public ResultCode AppendAudioOutBuffer(ServiceCtx context)
-        {
-            return AppendAudioOutBufferImpl(context, context.Request.SendBuff[0].Position);
-        }
-
-        [Command(4)]
-        // RegisterBufferEvent() -> handle<copy>
-        public ResultCode RegisterBufferEvent(ServiceCtx context)
-        {
-            if (_releaseEventHandle == 0)
-            {
-                if (context.Process.HandleTable.GenerateHandle(_releaseEvent.ReadableEvent, out _releaseEventHandle) != KernelResult.Success)
-                {
-                    throw new InvalidOperationException("Out of handles!");
-                }
-            }
-
-            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_releaseEventHandle);
-
-            return ResultCode.Success;
-        }
-
-        [Command(5)]
-        // GetReleasedAudioOutBuffer() -> (u32 count, buffer<nn::audio::AudioOutBuffer, 6>)
-        public ResultCode GetReleasedAudioOutBuffer(ServiceCtx context)
-        {
-            long position = context.Request.ReceiveBuff[0].Position;
-            long size     = context.Request.ReceiveBuff[0].Size;
-
-            return GetReleasedAudioOutBufferImpl(context, position, size);
-        }
-
-        [Command(6)]
-        // ContainsAudioOutBuffer(u64 tag) -> b8
-        public ResultCode ContainsAudioOutBuffer(ServiceCtx context)
-        {
-            long tag = context.RequestData.ReadInt64();
-
-            context.ResponseData.Write(_audioOut.ContainsBuffer(_track, tag));
-
-            return ResultCode.Success;
-        }
-
-        [Command(7)] // 3.0.0+
-        // AppendAudioOutBufferAuto(u64 tag, buffer<nn::audio::AudioOutBuffer, 0x21>)
-        public ResultCode AppendAudioOutBufferAuto(ServiceCtx context)
-        {
-            (long position, _) = context.Request.GetBufferType0x21();
-
-            return AppendAudioOutBufferImpl(context, position);
-        }
-
-        public ResultCode AppendAudioOutBufferImpl(ServiceCtx context, long position)
-        {
-            long tag = context.RequestData.ReadInt64();
-
-            AudioOutData data = MemoryHelper.Read<AudioOutData>(context.Memory, position);
-
-            // NOTE: Assume PCM16 all the time, change if new format are found.
-            short[] buffer = new short[data.SampleBufferSize / sizeof(short)];
-
-            context.Process.HandleTable.GetKProcess(_clientHandle).CpuMemory.Read((ulong)data.SampleBufferPtr, MemoryMarshal.Cast<short, byte>(buffer));
-
-            _audioOut.AppendBuffer(_track, tag, buffer);
-
-            return ResultCode.Success;
-        }
-
-        [Command(8)] // 3.0.0+
-        // GetReleasedAudioOutBufferAuto() -> (u32 count, buffer<nn::audio::AudioOutBuffer, 0x22>)
-        public ResultCode GetReleasedAudioOutBufferAuto(ServiceCtx context)
-        {
-            (long position, long size) = context.Request.GetBufferType0x22();
-
-            return GetReleasedAudioOutBufferImpl(context, position, size);
-        }
-
-        public ResultCode GetReleasedAudioOutBufferImpl(ServiceCtx context, long position, long size)
-        {
-            uint count = (uint)((ulong)size >> 3);
-
-            long[] releasedBuffers = _audioOut.GetReleasedBuffers(_track, (int)count);
-
-            for (uint index = 0; index < count; index++)
-            {
-                long tag = 0;
-
-                if (index < releasedBuffers.Length)
-                {
-                    tag = releasedBuffers[index];
-                }
-
-                context.Memory.Write((ulong)(position + index * 8), tag);
-            }
-
-            context.ResponseData.Write(releasedBuffers.Length);
-
-            return ResultCode.Success;
-        }
-
-        [Command(9)] // 4.0.0+
-        // GetAudioOutBufferCount() -> u32
-        public ResultCode GetAudioOutBufferCount(ServiceCtx context)
-        {
-            uint bufferCount = _audioOut.GetBufferCount(_track);
-
-            context.ResponseData.Write(bufferCount);
-
-            return ResultCode.Success;
-        }
-
-        [Command(10)] // 4.0.0+
-        // GetAudioOutPlayedSampleCount() -> u64
-        public ResultCode GetAudioOutPlayedSampleCount(ServiceCtx context)
-        {
-            ulong playedSampleCount = _audioOut.GetPlayedSampleCount(_track);
-
-            context.ResponseData.Write(playedSampleCount);
-
-            return ResultCode.Success;
-        }
-
-        [Command(11)] // 4.0.0+
-        // FlushAudioOutBuffers() -> b8
-        public ResultCode FlushAudioOutBuffers(ServiceCtx context)
-        {
-            bool heldBuffers = _audioOut.FlushBuffers(_track);
-
-            context.ResponseData.Write(heldBuffers);
-
-            return ResultCode.Success;
-        }
-
-        [Command(12)] // 6.0.0+
-        // SetAudioOutVolume(s32)
-        public ResultCode SetAudioOutVolume(ServiceCtx context)
-        {
-            float volume = context.RequestData.ReadSingle();
-
-            _audioOut.SetVolume(_track, volume);
-
-            return ResultCode.Success;
-        }
-
-        [Command(13)] // 6.0.0+
-        // GetAudioOutVolume() -> s32
-        public ResultCode GetAudioOutVolume(ServiceCtx context)
-        {
-            float volume = _audioOut.GetVolume(_track);
-
-            context.ResponseData.Write(volume);
-
-            return ResultCode.Success;
-        }
-
-        public void Dispose()
-        {
-            Dispose(true);
-        }
-
-        protected virtual void Dispose(bool disposing)
-        {
-            if (disposing)
-            {
-                _kernelContext.Syscall.CloseHandle(_clientHandle);
-                _audioOut.CloseTrack(_track);
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/Ryujinx.HLE/HOS/Services/Audio/AudioOutManager/Types/AudioOutData.cs b/Ryujinx.HLE/HOS/Services/Audio/AudioOutManager/Types/AudioOutData.cs
deleted file mode 100644
index 2598d0f8..00000000
--- a/Ryujinx.HLE/HOS/Services/Audio/AudioOutManager/Types/AudioOutData.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.HLE.HOS.Services.Audio.AudioOutManager
-{
-    [StructLayout(LayoutKind.Sequential)]
-    struct AudioOutData
-    {
-        public long NextBufferPtr;
-        public long SampleBufferPtr;
-        public long SampleBufferCapacity;
-        public long SampleBufferSize;
-        public long SampleBufferInnerOffset;
-    }
-}
\ No newline at end of file