mirror of
https://github.com/Ryujinx/Ryujinx.git
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This is the first commit of a series of reformat around the codebase as discussed internally some weeks ago. This project being one that isn't touched that much, it shouldn't cause conflict with any opened PRs.
193 lines
5.9 KiB
C#
193 lines
5.9 KiB
C#
using Ryujinx.Audio.Renderer.Parameter;
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using Ryujinx.Common.Utilities;
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using System;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Audio.Renderer.Server.Splitter
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{
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/// <summary>
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/// Server state for a splitter destination.
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/// </summary>
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[StructLayout(LayoutKind.Sequential, Size = 0xE0, Pack = Alignment)]
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public struct SplitterDestination
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{
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public const int Alignment = 0x10;
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/// <summary>
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/// The unique id of this <see cref="SplitterDestination"/>.
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/// </summary>
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public int Id;
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/// <summary>
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/// The mix to output the result of the splitter.
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/// </summary>
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public int DestinationId;
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/// <summary>
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/// Mix buffer volumes storage.
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/// </summary>
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private MixArray _mix;
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private MixArray _previousMix;
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/// <summary>
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/// Pointer to the next linked element.
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/// </summary>
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private unsafe SplitterDestination* _next;
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/// <summary>
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/// Set to true if in use.
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/// </summary>
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[MarshalAs(UnmanagedType.I1)]
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public bool IsUsed;
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/// <summary>
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/// Set to true if the internal state need to be updated.
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/// </summary>
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[MarshalAs(UnmanagedType.I1)]
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public bool NeedToUpdateInternalState;
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[StructLayout(LayoutKind.Sequential, Size = 4 * Constants.MixBufferCountMax, Pack = 1)]
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private struct MixArray { }
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/// <summary>
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/// Mix buffer volumes.
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/// </summary>
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/// <remarks>Used when a splitter id is specified in the mix.</remarks>
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public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mix);
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/// <summary>
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/// Previous mix buffer volumes.
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/// </summary>
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/// <remarks>Used when a splitter id is specified in the mix.</remarks>
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public Span<float> PreviousMixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _previousMix);
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/// <summary>
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/// Get the <see cref="Span{SplitterDestination}"/> of the next element or <see cref="Span{SplitterDestination}.Empty"/> if not present.
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/// </summary>
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public Span<SplitterDestination> Next
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{
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get
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{
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unsafe
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{
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return _next != null ? new Span<SplitterDestination>(_next, 1) : Span<SplitterDestination>.Empty;
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}
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}
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}
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/// <summary>
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/// Create a new <see cref="SplitterDestination"/>.
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/// </summary>
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/// <param name="id">The unique id of this <see cref="SplitterDestination"/>.</param>
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public SplitterDestination(int id) : this()
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{
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Id = id;
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DestinationId = Constants.UnusedMixId;
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ClearVolumes();
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}
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/// <summary>
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/// Update the <see cref="SplitterDestination"/> from user parameter.
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/// </summary>
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/// <param name="parameter">The user parameter.</param>
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public void Update(SplitterDestinationInParameter parameter)
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{
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Debug.Assert(Id == parameter.Id);
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if (parameter.IsMagicValid() && Id == parameter.Id)
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{
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DestinationId = parameter.DestinationId;
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parameter.MixBufferVolume.CopyTo(MixBufferVolume);
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if (!IsUsed && parameter.IsUsed)
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{
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MixBufferVolume.CopyTo(PreviousMixBufferVolume);
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NeedToUpdateInternalState = false;
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}
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IsUsed = parameter.IsUsed;
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}
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}
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/// <summary>
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/// Update the internal state of the instance.
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/// </summary>
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public void UpdateInternalState()
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{
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if (IsUsed && NeedToUpdateInternalState)
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{
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MixBufferVolume.CopyTo(PreviousMixBufferVolume);
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}
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NeedToUpdateInternalState = false;
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}
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/// <summary>
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/// Set the update internal state marker.
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/// </summary>
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public void MarkAsNeedToUpdateInternalState()
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{
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NeedToUpdateInternalState = true;
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}
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/// <summary>
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/// Return true if the <see cref="SplitterDestination"/> is used and has a destination.
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/// </summary>
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/// <returns>True if the <see cref="SplitterDestination"/> is used and has a destination.</returns>
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public bool IsConfigured()
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{
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return IsUsed && DestinationId != Constants.UnusedMixId;
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}
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/// <summary>
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/// Get the volume for a given destination.
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/// </summary>
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/// <param name="destinationIndex">The destination index to use.</param>
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/// <returns>The volume for the given destination.</returns>
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public float GetMixVolume(int destinationIndex)
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{
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Debug.Assert(destinationIndex >= 0 && destinationIndex < Constants.MixBufferCountMax);
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return MixBufferVolume[destinationIndex];
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}
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/// <summary>
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/// Clear the volumes.
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/// </summary>
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public void ClearVolumes()
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{
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MixBufferVolume.Fill(0);
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PreviousMixBufferVolume.Fill(0);
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}
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/// <summary>
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/// Link the next element to the given <see cref="SplitterDestination"/>.
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/// </summary>
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/// <param name="next">The given <see cref="SplitterDestination"/> to link.</param>
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public void Link(ref SplitterDestination next)
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{
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unsafe
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{
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fixed (SplitterDestination* nextPtr = &next)
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{
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_next = nextPtr;
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}
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}
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}
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/// <summary>
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/// Remove the link to the next element.
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/// </summary>
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public void Unlink()
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{
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unsafe
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{
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_next = null;
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}
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}
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}
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} |