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.
221 lines
6.6 KiB
C#
221 lines
6.6 KiB
C#
using Ryujinx.Audio.Renderer.Parameter;
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using System;
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using System.Buffers;
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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.
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/// </summary>
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[StructLayout(LayoutKind.Sequential, Size = 0x20, Pack = Alignment)]
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public struct SplitterState
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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="SplitterState"/>.
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/// </summary>
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public int Id;
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/// <summary>
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/// Target sample rate to use on the splitter.
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/// </summary>
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public uint SampleRate;
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/// <summary>
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/// Count of splitter destinations (<see cref="SplitterDestination"/>).
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/// </summary>
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public int DestinationCount;
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/// <summary>
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/// Set to true if the splitter has a new connection.
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/// </summary>
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[MarshalAs(UnmanagedType.I1)]
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public bool HasNewConnection;
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/// <summary>
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/// Linked list of <see cref="SplitterDestination"/>.
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/// </summary>
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private unsafe SplitterDestination* _destinationsData;
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/// <summary>
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/// Span to the first element of the linked list of <see cref="SplitterDestination"/>.
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/// </summary>
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public Span<SplitterDestination> Destinations
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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 (IntPtr)_destinationsData != IntPtr.Zero ? new Span<SplitterDestination>(_destinationsData, 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="SplitterState"/>.
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/// </summary>
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/// <param name="id">The unique id of this <see cref="SplitterState"/>.</param>
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public SplitterState(int id) : this()
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{
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Id = id;
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}
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public Span<SplitterDestination> GetData(int index)
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{
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int i = 0;
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Span<SplitterDestination> result = Destinations;
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while (i < index)
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{
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if (result.IsEmpty)
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{
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break;
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}
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result = result[0].Next;
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i++;
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}
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return result;
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}
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/// <summary>
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/// Clear the new connection flag.
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/// </summary>
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public void ClearNewConnectionFlag()
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{
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HasNewConnection = false;
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}
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/// <summary>
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/// Utility function to apply a given <see cref="SpanAction{T, TArg}"/> to all <see cref="Destinations"/>.
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/// </summary>
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/// <param name="action">The action to execute on each elements.</param>
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private void ForEachDestination(SpanAction<SplitterDestination, int> action)
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{
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Span<SplitterDestination> temp = Destinations;
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int i = 0;
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while (true)
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{
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if (temp.IsEmpty)
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{
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break;
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}
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Span<SplitterDestination> next = temp[0].Next;
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action.Invoke(temp, i++);
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temp = next;
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}
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}
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/// <summary>
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/// Update the <see cref="SplitterState"/> from user parameter.
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/// </summary>
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/// <param name="context">The splitter context.</param>
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/// <param name="parameter">The user parameter.</param>
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/// <param name="input">The raw input data after the <paramref name="parameter"/>.</param>
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public void Update(SplitterContext context, ref SplitterInParameter parameter, ReadOnlySpan<byte> input)
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{
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ClearLinks();
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int destinationCount;
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if (context.IsBugFixed)
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{
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destinationCount = parameter.DestinationCount;
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}
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else
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{
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destinationCount = Math.Min(context.GetDestinationCountPerStateForCompatibility(), parameter.DestinationCount);
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}
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if (destinationCount > 0)
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{
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ReadOnlySpan<int> destinationIds = MemoryMarshal.Cast<byte, int>(input);
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Memory<SplitterDestination> destination = context.GetDestinationMemory(destinationIds[0]);
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SetDestination(ref destination.Span[0]);
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DestinationCount = destinationCount;
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for (int i = 1; i < destinationCount; i++)
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{
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Memory<SplitterDestination> nextDestination = context.GetDestinationMemory(destinationIds[i]);
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destination.Span[0].Link(ref nextDestination.Span[0]);
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destination = nextDestination;
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}
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}
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Debug.Assert(parameter.Id == Id);
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if (parameter.Id == Id)
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{
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SampleRate = parameter.SampleRate;
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HasNewConnection = true;
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}
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}
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/// <summary>
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/// Set the head of the linked list of <see cref="Destinations"/>.
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/// </summary>
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/// <param name="newValue">A reference to a <see cref="SplitterDestination"/>.</param>
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public void SetDestination(ref SplitterDestination newValue)
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{
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unsafe
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{
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fixed (SplitterDestination* newValuePtr = &newValue)
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{
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_destinationsData = newValuePtr;
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}
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}
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}
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/// <summary>
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/// Update the internal state of this instance.
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/// </summary>
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public void UpdateInternalState()
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{
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ForEachDestination((destination, _) => destination[0].UpdateInternalState());
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}
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/// <summary>
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/// Clear all links from the <see cref="Destinations"/>.
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/// </summary>
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public void ClearLinks()
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{
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ForEachDestination((destination, _) => destination[0].Unlink());
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unsafe
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{
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_destinationsData = (SplitterDestination*)IntPtr.Zero;
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}
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}
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/// <summary>
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/// Initialize a given <see cref="Span{SplitterState}"/>.
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/// </summary>
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/// <param name="splitters">All the <see cref="SplitterState"/> to initialize.</param>
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public static void InitializeSplitters(Span<SplitterState> splitters)
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{
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foreach (ref SplitterState splitter in splitters)
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{
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unsafe
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{
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splitter._destinationsData = (SplitterDestination*)IntPtr.Zero;
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}
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splitter.DestinationCount = 0;
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}
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}
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}
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} |