Update audio renderer to REV12: Add support for splitter biquad filter (#6813)
* Update audio renderer to REV12: Add support for splitter biquad filter * Formatting * Official names * Update BiquadFilterState size + other fixes * Update tests * Update comment for version 2 * Size test for SplitterDestinationVersion2 * Should use Volume1 if no ramp
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using Ryujinx.Common.Memory;
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using Ryujinx.Common.Utilities;
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using System;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Audio.Renderer.Parameter
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{
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/// <summary>
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/// Input header for a splitter destination version 2 update.
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/// </summary>
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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public struct SplitterDestinationInParameterVersion2 : ISplitterDestinationInParameter
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{
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/// <summary>
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/// Magic of the input header.
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/// </summary>
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public uint Magic;
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/// <summary>
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/// Target splitter destination data id.
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/// </summary>
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public int Id;
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/// <summary>
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/// Mix buffer volumes storage.
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/// </summary>
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private MixArray _mixBufferVolume;
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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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/// Biquad filter parameters.
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/// </summary>
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public Array2<BiquadFilterParameter> BiquadFilters;
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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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/// Reserved/padding.
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/// </summary>
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private unsafe fixed byte _reserved[11];
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[StructLayout(LayoutKind.Sequential, Size = sizeof(float) * 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 _mixBufferVolume);
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readonly int ISplitterDestinationInParameter.Id => Id;
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readonly int ISplitterDestinationInParameter.DestinationId => DestinationId;
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readonly Array2<BiquadFilterParameter> ISplitterDestinationInParameter.BiquadFilters => BiquadFilters;
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readonly bool ISplitterDestinationInParameter.IsUsed => IsUsed;
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/// <summary>
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/// The expected constant of any input header.
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/// </summary>
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private const uint ValidMagic = 0x44444E53;
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/// <summary>
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/// Check if the magic is valid.
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/// </summary>
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/// <returns>Returns true if the magic is valid.</returns>
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public readonly bool IsMagicValid()
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{
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return Magic == ValidMagic;
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}
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}
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}
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