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ryujinx-final/Ryujinx.HLE/HOS/Services/Audio/AudioRendererManager/IAudioRenderer.cs

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using Ryujinx.Audio;
using Ryujinx.Audio.Adpcm;
using Ryujinx.Common.Logging;
using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Ipc;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.Utilities;
using System;
using System.Runtime.InteropServices;
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
namespace Ryujinx.HLE.HOS.Services.Audio.AudioRendererManager
{
class IAudioRenderer : IpcService, IDisposable
{
// This is the amount of samples that are going to be appended
// each time that RequestUpdateAudioRenderer is called. Ideally,
// this value shouldn't be neither too small (to avoid the player
// starving due to running out of samples) or too large (to avoid
// high latency).
private const int MixBufferSamplesCount = 960;
private KEvent _updateEvent;
private MemoryManager _memory;
private IAalOutput _audioOut;
private AudioRendererParameter _params;
private MemoryPoolContext[] _memoryPools;
private VoiceContext[] _voices;
private EffectContext[] _effects;
private int _track;
private PlayState _playState;
private ulong _elapsedFrameCount;
public IAudioRenderer(
Horizon system,
MemoryManager memory,
IAalOutput audioOut,
AudioRendererParameter rendererParams)
{
_updateEvent = new KEvent(system.KernelContext);
_memory = memory;
_audioOut = audioOut;
_params = rendererParams;
_track = audioOut.OpenTrack(
AudioRendererConsts.HostSampleRate,
AudioRendererConsts.HostChannelsCount,
AudioCallback);
_memoryPools = CreateArray<MemoryPoolContext>(rendererParams.EffectCount + rendererParams.VoiceCount * 4);
_voices = CreateArray<VoiceContext>(rendererParams.VoiceCount);
_effects = CreateArray<EffectContext>(rendererParams.EffectCount);
_elapsedFrameCount = 0;
InitializeAudioOut();
_playState = PlayState.Stopped;
}
[Command(0)]
// GetSampleRate() -> u32
public ResultCode GetSampleRate(ServiceCtx context)
{
context.ResponseData.Write(_params.SampleRate);
return ResultCode.Success;
}
[Command(1)]
// GetSampleCount() -> u32
public ResultCode GetSampleCount(ServiceCtx context)
{
context.ResponseData.Write(_params.SampleCount);
return ResultCode.Success;
}
[Command(2)]
// GetMixBufferCount() -> u32
public ResultCode GetMixBufferCount(ServiceCtx context)
{
context.ResponseData.Write(_params.SubMixCount);
return ResultCode.Success;
}
[Command(3)]
// GetState() -> u32
public ResultCode GetState(ServiceCtx context)
{
context.ResponseData.Write((int)_playState);
Logger.PrintStub(LogClass.ServiceAudio, new { State = Enum.GetName(typeof(PlayState), _playState) });
return ResultCode.Success;
}
private void AudioCallback()
{
_updateEvent.ReadableEvent.Signal();
}
private static T[] CreateArray<T>(int size) where T : new()
{
T[] output = new T[size];
for (int index = 0; index < size; index++)
{
output[index] = new T();
}
return output;
}
private void InitializeAudioOut()
{
AppendMixedBuffer(0);
AppendMixedBuffer(1);
AppendMixedBuffer(2);
_audioOut.Start(_track);
}
[Command(4)]
// RequestUpdateAudioRenderer(buffer<nn::audio::detail::AudioRendererUpdateDataHeader, 5>)
// -> (buffer<nn::audio::detail::AudioRendererUpdateDataHeader, 6>, buffer<nn::audio::detail::AudioRendererUpdateDataHeader, 6>)
public ResultCode RequestUpdateAudioRenderer(ServiceCtx context)
{
long outputPosition = context.Request.ReceiveBuff[0].Position;
long outputSize = context.Request.ReceiveBuff[0].Size;
MemoryHelper.FillWithZeros(context.Memory, outputPosition, (int)outputSize);
long inputPosition = context.Request.SendBuff[0].Position;
StructReader reader = new StructReader(context.Memory, inputPosition);
StructWriter writer = new StructWriter(context.Memory, outputPosition);
UpdateDataHeader inputHeader = reader.Read<UpdateDataHeader>();
BehaviorInfo behaviorInfo = new BehaviorInfo();
behaviorInfo.SetUserLibRevision(inputHeader.Revision);
reader.Read<BehaviorIn>(inputHeader.BehaviorSize);
MemoryPoolIn[] memoryPoolsIn = reader.Read<MemoryPoolIn>(inputHeader.MemoryPoolSize);
for (int index = 0; index < memoryPoolsIn.Length; index++)
{
MemoryPoolIn memoryPool = memoryPoolsIn[index];
if (memoryPool.State == MemoryPoolState.RequestAttach)
{
_memoryPools[index].OutStatus.State = MemoryPoolState.Attached;
}
else if (memoryPool.State == MemoryPoolState.RequestDetach)
{
_memoryPools[index].OutStatus.State = MemoryPoolState.Detached;
}
}
reader.Read<VoiceChannelResourceIn>(inputHeader.VoiceResourceSize);
VoiceIn[] voicesIn = reader.Read<VoiceIn>(inputHeader.VoiceSize);
for (int index = 0; index < voicesIn.Length; index++)
{
VoiceIn voice = voicesIn[index];
VoiceContext voiceCtx = _voices[index];
voiceCtx.SetAcquireState(voice.Acquired != 0);
if (voice.Acquired == 0)
{
continue;
}
if (voice.FirstUpdate != 0)
{
voiceCtx.AdpcmCtx = GetAdpcmDecoderContext(
voice.AdpcmCoeffsPosition,
voice.AdpcmCoeffsSize);
voiceCtx.SampleFormat = voice.SampleFormat;
voiceCtx.SampleRate = voice.SampleRate;
voiceCtx.ChannelsCount = voice.ChannelsCount;
voiceCtx.SetBufferIndex(voice.BaseWaveBufferIndex);
}
voiceCtx.WaveBuffers[0] = voice.WaveBuffer0;
voiceCtx.WaveBuffers[1] = voice.WaveBuffer1;
voiceCtx.WaveBuffers[2] = voice.WaveBuffer2;
voiceCtx.WaveBuffers[3] = voice.WaveBuffer3;
voiceCtx.Volume = voice.Volume;
voiceCtx.PlayState = voice.PlayState;
}
EffectIn[] effectsIn = reader.Read<EffectIn>(inputHeader.EffectSize);
for (int index = 0; index < effectsIn.Length; index++)
{
if (effectsIn[index].IsNew != 0)
{
_effects[index].OutStatus.State = EffectState.New;
}
}
UpdateAudio();
UpdateDataHeader outputHeader = new UpdateDataHeader();
int updateHeaderSize = Marshal.SizeOf<UpdateDataHeader>();
outputHeader.Revision = AudioRendererConsts.RevMagic;
outputHeader.BehaviorSize = 0xb0;
outputHeader.MemoryPoolSize = (_params.EffectCount + _params.VoiceCount * 4) * 0x10;
outputHeader.VoiceSize = _params.VoiceCount * 0x10;
outputHeader.EffectSize = _params.EffectCount * 0x10;
outputHeader.SinkSize = _params.SinkCount * 0x20;
outputHeader.PerformanceManagerSize = 0x10;
if (behaviorInfo.IsElapsedFrameCountSupported())
{
outputHeader.ElapsedFrameCountInfoSize = 0x10;
}
outputHeader.TotalSize = updateHeaderSize +
outputHeader.BehaviorSize +
outputHeader.MemoryPoolSize +
outputHeader.VoiceSize +
outputHeader.EffectSize +
outputHeader.SinkSize +
outputHeader.PerformanceManagerSize +
outputHeader.ElapsedFrameCountInfoSize;
writer.Write(outputHeader);
foreach (MemoryPoolContext memoryPool in _memoryPools)
{
writer.Write(memoryPool.OutStatus);
}
foreach (VoiceContext voice in _voices)
{
writer.Write(voice.OutStatus);
}
foreach (EffectContext effect in _effects)
{
writer.Write(effect.OutStatus);
}
writer.SkipBytes(_params.SinkCount * 0x20);
writer.SkipBytes(outputHeader.PerformanceManagerSize);
writer.SkipBytes(outputHeader.BehaviorSize);
if (behaviorInfo.IsElapsedFrameCountSupported())
{
writer.Write(new RendererInfoOut
{
ElapsedFrameCount = _elapsedFrameCount
});
}
return ResultCode.Success;
}
[Command(5)]
// Start()
public ResultCode StartAudioRenderer(ServiceCtx context)
{
Logger.PrintStub(LogClass.ServiceAudio);
_playState = PlayState.Playing;
return ResultCode.Success;
}
[Command(6)]
// Stop()
public ResultCode StopAudioRenderer(ServiceCtx context)
{
Logger.PrintStub(LogClass.ServiceAudio);
_playState = PlayState.Stopped;
return ResultCode.Success;
}
[Command(7)]
// QuerySystemEvent() -> handle<copy, event>
public ResultCode QuerySystemEvent(ServiceCtx context)
{
if (context.Process.HandleTable.GenerateHandle(_updateEvent.ReadableEvent, out int handle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
context.Response.HandleDesc = IpcHandleDesc.MakeCopy(handle);
return ResultCode.Success;
}
private AdpcmDecoderContext GetAdpcmDecoderContext(long position, long size)
{
if (size == 0)
{
return null;
}
AdpcmDecoderContext context = new AdpcmDecoderContext
{
Coefficients = new short[size >> 1]
};
for (int offset = 0; offset < size; offset += 2)
{
context.Coefficients[offset >> 1] = _memory.Read<short>((ulong)(position + offset));
}
return context;
}
private void UpdateAudio()
{
long[] released = _audioOut.GetReleasedBuffers(_track, 2);
for (int index = 0; index < released.Length; index++)
{
AppendMixedBuffer(released[index]);
}
_elapsedFrameCount++;
}
private void AppendMixedBuffer(long tag)
{
int[] mixBuffer = new int[MixBufferSamplesCount * AudioRendererConsts.HostChannelsCount];
foreach (VoiceContext voice in _voices)
{
if (!voice.Playing || voice.CurrentWaveBuffer.Size == 0)
{
continue;
}
int outOffset = 0;
int pendingSamples = MixBufferSamplesCount;
while (pendingSamples > 0)
{
int[] samples = voice.GetBufferData(_memory, pendingSamples, out int returnedSamples);
if (returnedSamples == 0)
{
break;
}
pendingSamples -= returnedSamples;
for (int offset = 0; offset < samples.Length; offset++)
{
mixBuffer[outOffset++] += (int)(samples[offset] * voice.Volume);
}
}
}
_audioOut.AppendBuffer(_track, tag, GetFinalBuffer(mixBuffer));
}
private unsafe static short[] GetFinalBuffer(int[] buffer)
{
short[] output = new short[buffer.Length];
int offset = 0;
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
// Perform Saturation using SSE2 if supported
if (Sse2.IsSupported)
{
fixed (int* inptr = buffer)
fixed (short* outptr = output)
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
{
for (; offset + 32 <= buffer.Length; offset += 32)
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
{
// Unroll the loop a little to ensure the CPU pipeline
// is always full.
Vector128<int> block1A = Sse2.LoadVector128(inptr + offset + 0);
Vector128<int> block1B = Sse2.LoadVector128(inptr + offset + 4);
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
Vector128<int> block2A = Sse2.LoadVector128(inptr + offset + 8);
Vector128<int> block2B = Sse2.LoadVector128(inptr + offset + 12);
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
Vector128<int> block3A = Sse2.LoadVector128(inptr + offset + 16);
Vector128<int> block3B = Sse2.LoadVector128(inptr + offset + 20);
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
Vector128<int> block4A = Sse2.LoadVector128(inptr + offset + 24);
Vector128<int> block4B = Sse2.LoadVector128(inptr + offset + 28);
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
Vector128<short> output1 = Sse2.PackSignedSaturate(block1A, block1B);
Vector128<short> output2 = Sse2.PackSignedSaturate(block2A, block2B);
Vector128<short> output3 = Sse2.PackSignedSaturate(block3A, block3B);
Vector128<short> output4 = Sse2.PackSignedSaturate(block4A, block4B);
Sse2.Store(outptr + offset + 0, output1);
Sse2.Store(outptr + offset + 8, output2);
Sse2.Store(outptr + offset + 16, output3);
Sse2.Store(outptr + offset + 24, output4);
Implement libsoundio as an alternative audio backend (#406) * Audio: Implement libsoundio as an alternative audio backend libsoundio will be preferred over OpenAL if it is available on the machine. If neither are available, it will fallback to a dummy audio renderer that outputs no sound. * Audio: Fix SoundIoRingBuffer documentation * Audio: Unroll and optimize the audio write callback Copying one sample at a time is slow, this unrolls the most common audio channel layouts and manually copies the bytes between source and destination. This is over 2x faster than calling CopyBlockUnaligned every sample. * Audio: Optimize the write callback further This dramatically reduces the audio buffer copy time. When the sample size is one of handled sample sizes the buffer copy operation is almost 10x faster than CopyBlockAligned. This works by copying full samples at a time, rather than the individual bytes that make up the sample. This allows for 2x or 4x faster copy operations depending on sample size. * Audio: Fix typo in Stereo write callback * Audio: Fix Surround (5.1) audio write callback * Audio: Update Documentation * Audio: Use built-in Unsafe.SizeOf<T>() Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area. * Audio: Keep fixed buffer style consistent * Audio: Address styling nits * Audio: More style nits * Audio: Add additional documentation * Audio: Move libsoundio bindings internal As per discussion, moving the libsoundio native bindings into Ryujinx.Audio * Audio: Bump Target Framework back up to .NET Core 2.1 * Audio: Remove voice mixing optimizations. Leaves Saturation optimizations in place.
2018-11-15 02:22:50 +00:00
}
}
}
// Process left overs
for (; offset < buffer.Length; offset++)
{
output[offset] = DspUtils.Saturate(buffer[offset]);
}
return output;
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
_audioOut.CloseTrack(_track);
}
}
}
}