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FNA/src/Audio/WaveBank.cs
226 lines | 4.2 KiB | text/x-csharp | CSharpLexer
226 lines | 4.2 KiB | text/x-csharp | CSharpLexer
| r0 | #region License | |||
| /* FNA - XNA4 Reimplementation for Desktop Platforms | ||||
| r690 | * Copyright 2009-2022 Ethan Lee and the MonoGame Team | |||
| r0 | * | |||
| * Released under the Microsoft Public License. | ||||
| * See LICENSE for details. | ||||
| */ | ||||
| #endregion | ||||
| #region Using Statements | ||||
| using System; | ||||
| using System.IO; | ||||
| using System.Runtime.InteropServices; | ||||
| #endregion | ||||
| namespace Microsoft.Xna.Framework.Audio | ||||
| { | ||||
| // http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.audio.wavebank.aspx | ||||
| public class WaveBank : IDisposable | ||||
| { | ||||
| #region Public Properties | ||||
| public bool IsDisposed | ||||
| { | ||||
| get; | ||||
| private set; | ||||
| } | ||||
| public bool IsPrepared | ||||
| { | ||||
| get | ||||
| { | ||||
| uint state; | ||||
| FAudio.FACTWaveBank_GetState(handle, out state); | ||||
| return (state & FAudio.FACT_STATE_PREPARED) != 0; | ||||
| } | ||||
| } | ||||
| public bool IsInUse | ||||
| { | ||||
| get | ||||
| { | ||||
| uint state; | ||||
| FAudio.FACTWaveBank_GetState(handle, out state); | ||||
| return (state & FAudio.FACT_STATE_INUSE) != 0; | ||||
| } | ||||
| } | ||||
| #endregion | ||||
| #region Private Variables | ||||
| private IntPtr handle; | ||||
| private AudioEngine engine; | ||||
| private WeakReference selfReference; | ||||
| r690 | private IntPtr bankData; | |||
| private IntPtr bankDataLen; // Non-zero for in-memory WaveBanks | ||||
| r0 | ||||
| #endregion | ||||
| #region Disposing Event | ||||
| public event EventHandler<EventArgs> Disposing; | ||||
| #endregion | ||||
| #region Public Constructors | ||||
| public WaveBank( | ||||
| AudioEngine audioEngine, | ||||
| string nonStreamingWaveBankFilename | ||||
| ) { | ||||
| if (audioEngine == null) | ||||
| { | ||||
| throw new ArgumentNullException("audioEngine"); | ||||
| } | ||||
| if (String.IsNullOrEmpty(nonStreamingWaveBankFilename)) | ||||
| { | ||||
| throw new ArgumentNullException("nonStreamingWaveBankFilename"); | ||||
| } | ||||
| r690 | bankData = TitleContainer.ReadToPointer( | |||
| nonStreamingWaveBankFilename, | ||||
| out bankDataLen | ||||
| r0 | ); | |||
| FAudio.FACTAudioEngine_CreateInMemoryWaveBank( | ||||
| audioEngine.handle, | ||||
| r690 | bankData, | |||
| (uint) bankDataLen, | ||||
| r0 | 0, | |||
| 0, | ||||
| out handle | ||||
| ); | ||||
| engine = audioEngine; | ||||
| selfReference = new WeakReference(this, true); | ||||
| r690 | engine.RegisterPointer(handle, selfReference); | |||
| r0 | IsDisposed = false; | |||
| } | ||||
| public WaveBank( | ||||
| AudioEngine audioEngine, | ||||
| string streamingWaveBankFilename, | ||||
| int offset, | ||||
| short packetsize | ||||
| ) { | ||||
| if (audioEngine == null) | ||||
| { | ||||
| throw new ArgumentNullException("audioEngine"); | ||||
| } | ||||
| if (String.IsNullOrEmpty(streamingWaveBankFilename)) | ||||
| { | ||||
| throw new ArgumentNullException("streamingWaveBankFilename"); | ||||
| } | ||||
| string safeName = MonoGame.Utilities.FileHelpers.NormalizeFilePathSeparators( | ||||
| streamingWaveBankFilename | ||||
| ); | ||||
| if (!Path.IsPathRooted(safeName)) | ||||
| { | ||||
| safeName = Path.Combine( | ||||
| TitleLocation.Path, | ||||
| safeName | ||||
| ); | ||||
| } | ||||
| r690 | bankData = FAudio.FAudio_fopen(safeName); | |||
| r0 | ||||
| FAudio.FACTStreamingParameters settings = new FAudio.FACTStreamingParameters(); | ||||
| r690 | settings.file = bankData; | |||
| r0 | FAudio.FACTAudioEngine_CreateStreamingWaveBank( | |||
| audioEngine.handle, | ||||
| ref settings, | ||||
| out handle | ||||
| ); | ||||
| engine = audioEngine; | ||||
| selfReference = new WeakReference(this, true); | ||||
| r690 | engine.RegisterPointer(handle, selfReference); | |||
| r0 | IsDisposed = false; | |||
| } | ||||
| #endregion | ||||
| #region Destructor | ||||
| ~WaveBank() | ||||
| { | ||||
| if (AudioEngine.ProgramExiting) | ||||
| { | ||||
| return; | ||||
| } | ||||
| if (!IsDisposed && IsInUse) | ||||
| { | ||||
| // STOP LEAKING YOUR BANKS, ARGH | ||||
| GC.ReRegisterForFinalize(this); | ||||
| return; | ||||
| } | ||||
| Dispose(false); | ||||
| } | ||||
| #endregion | ||||
| #region Public Dispose Method | ||||
| public void Dispose() | ||||
| { | ||||
| Dispose(true); | ||||
| GC.SuppressFinalize(this); | ||||
| } | ||||
| #endregion | ||||
| #region Protected Dispose Method | ||||
| protected virtual void Dispose(bool disposing) | ||||
| { | ||||
| lock (engine.gcSync) | ||||
| { | ||||
| if (!IsDisposed) | ||||
| { | ||||
| if (Disposing != null) | ||||
| { | ||||
| Disposing.Invoke(this, null); | ||||
| } | ||||
| // If this is disposed, stop leaking memory! | ||||
| if (!engine.IsDisposed) | ||||
| { | ||||
| FAudio.FACTWaveBank_Destroy(handle); | ||||
| } | ||||
| OnWaveBankDestroyed(); | ||||
| } | ||||
| } | ||||
| } | ||||
| #endregion | ||||
| #region Internal Methods | ||||
| internal void OnWaveBankDestroyed() | ||||
| { | ||||
| IsDisposed = true; | ||||
| r690 | if (bankData != IntPtr.Zero) | |||
| r0 | { | |||
| r690 | if (bankDataLen != IntPtr.Zero) | |||
| { | ||||
| FNAPlatform.FreeFilePointer(bankData); | ||||
| bankDataLen = IntPtr.Zero; | ||||
| } | ||||
| else | ||||
| { | ||||
| FAudio.FAudio_close(bankData); | ||||
| } | ||||
| bankData = IntPtr.Zero; | ||||
| r0 | } | |||
| handle = IntPtr.Zero; | ||||
| selfReference = null; | ||||
| } | ||||
| #endregion | ||||
| } | ||||
| } | ||||