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using Ryujinx.Audio.Renderer.Common;
using Ryujinx.Audio.Renderer.Parameter;
using Ryujinx.Audio.Renderer.Parameter.Sink;
using Ryujinx.Audio.Renderer.Server.MemoryPool;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace Ryujinx.Audio.Renderer.Server.Sink
{
/// <summary>
/// Server information for a circular buffer sink.
/// </summary>
public class CircularBufferSink : BaseSink
{
/// <summary>
/// The circular buffer parameter.
/// </summary>
public CircularBufferParameter Parameter;
/// <summary>
/// The last written data offset on the circular buffer.
/// </summary>
private uint _lastWrittenOffset;
/// <summary>
/// THe previous written offset of the circular buffer.
/// </summary>
private uint _oldWrittenOffset;
/// <summary>
/// The current offset to write data on the circular buffer.
/// </summary>
public uint CurrentWriteOffset { get; private set; }
/// <summary>
/// The <see cref="AddressInfo"/> of the circular buffer.
/// </summary>
public AddressInfo CircularBufferAddressInfo;
public CircularBufferSink()
{
CircularBufferAddressInfo = AddressInfo.Create();
}
public override SinkType TargetSinkType => SinkType.CircularBuffer;
public override void Update(out BehaviourParameter.ErrorInfo errorInfo, ref SinkInParameter parameter, ref SinkOutStatus outStatus, PoolMapper mapper)
{
errorInfo = new BehaviourParameter.ErrorInfo();
outStatus = new SinkOutStatus();
Debug.Assert(IsTypeValid(ref parameter));
ref CircularBufferParameter inputDeviceParameter = ref MemoryMarshal.Cast<byte, CircularBufferParameter>(parameter.SpecificData)[0];
if (parameter.IsUsed != IsUsed || ShouldSkip)
{
UpdateStandardParameter(ref parameter);
if (parameter.IsUsed)
{
Debug.Assert(CircularBufferAddressInfo.CpuAddress == 0);
Debug.Assert(CircularBufferAddressInfo.GetReference(false) == 0);
ShouldSkip = !mapper.TryAttachBuffer(out errorInfo, ref CircularBufferAddressInfo, inputDeviceParameter.BufferAddress, inputDeviceParameter.BufferSize);
}
else
{
Debug.Assert(CircularBufferAddressInfo.CpuAddress != 0);
Debug.Assert(CircularBufferAddressInfo.GetReference(false) != 0);
}
Parameter = inputDeviceParameter;
}
outStatus.LastWrittenOffset = _lastWrittenOffset;
}
public override void UpdateForCommandGeneration()
{
Debug.Assert(Type == TargetSinkType);
if (IsUsed)
{
uint frameSize = Constants.TargetSampleSize * Parameter.SampleCount * Parameter.InputCount;
_lastWrittenOffset = _oldWrittenOffset;
_oldWrittenOffset = CurrentWriteOffset;
CurrentWriteOffset += frameSize;
if (Parameter.BufferSize > 0)
{
CurrentWriteOffset %= Parameter.BufferSize;
}
}
}
public override void CleanUp()
{
CircularBufferAddressInfo = AddressInfo.Create();
_lastWrittenOffset = 0;
_oldWrittenOffset = 0;
CurrentWriteOffset = 0;
base.CleanUp();
}
}
}
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