Ryujinx/Ryujinx.Audio/Renderer/Parameter/SplitterDestinationInParameter.cs

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//
// Copyright (c) 2019-2021 Ryujinx
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//
using Ryujinx.Common.Utilities;
using System;
using System.Runtime.InteropServices;
namespace Ryujinx.Audio.Renderer.Parameter
{
/// <summary>
/// Input header for a splitter destination update.
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct SplitterDestinationInParameter
{
/// <summary>
/// Magic of the input header.
/// </summary>
public uint Magic;
/// <summary>
/// Target splitter destination data id.
/// </summary>
public int Id;
/// <summary>
/// Mix buffer volumes storage.
/// </summary>
private MixArray _mixBufferVolume;
/// <summary>
/// The mix to output the result of the splitter.
/// </summary>
public int DestinationId;
/// <summary>
/// Set to true if in use.
/// </summary>
[MarshalAs(UnmanagedType.I1)]
public bool IsUsed;
/// <summary>
/// Reserved/padding.
/// </summary>
private unsafe fixed byte _reserved[3];
[StructLayout(LayoutKind.Sequential, Size = 4 * Constants.MixBufferCountMax, Pack = 1)]
private struct MixArray { }
/// <summary>
/// Mix buffer volumes.
/// </summary>
/// <remarks>Used when a splitter id is specified in the mix.</remarks>
public Span<float> MixBufferVolume => SpanHelpers.AsSpan<MixArray, float>(ref _mixBufferVolume);
/// <summary>
/// The expected constant of any input header.
/// </summary>
private const uint ValidMagic = 0x44444E53;
/// <summary>
/// Check if the magic is valid.
/// </summary>
/// <returns>Returns true if the magic is valid.</returns>
public bool IsMagicValid()
{
return Magic == ValidMagic;
}
}
}