/// <summary>
/// Initializes a new instance of the <see cref="SoundBank"/> class from a soundbank stream.
/// </summary>
/// <param name="audioEngine">The engine.</param>
/// <param name="stream">The soundbank stream stream.</param>
/// <unmanaged>HRESULT IXACT3Engine::CreateSoundBank([In] const void* pvBuffer,[In] unsigned int dwSize,[In] unsigned int dwFlags,[In] unsigned int dwAllocAttributes,[Out, Fast] IXACT3SoundBank** ppSoundBank)</unmanaged>
public SoundBank(AudioEngine audioEngine, Stream stream)
{
this.audioEngine = audioEngine;
isAudioEngineReadonly = true;
soundBankSourceStream = stream as DataStream ?? DataStream.Create(Utilities.ReadStream(stream), true, true);
audioEngine.CreateSoundBank(soundBankSourceStream.PositionPointer, (int)(soundBankSourceStream.Length - soundBankSourceStream.Position), 0, 0, this);
callback = OnNotificationDelegate;
}
/// <summary>
/// Registers this instance to notify for a type of notification.
/// </summary>
/// <param name="notificationType">Type of the notification.</param>
public void RegisterNotification(NotificationType notificationType)
{
if (AudioEngine == null)
throw new InvalidOperationException("AudioEngine attached to this instance cannot be null");
var notificationDescription = AudioEngine.VerifyRegister(notificationType, typeof(Wave), callback ?? (callback = OnNotificationDelegate));
notificationDescription.WavePointer = NativePointer;
AudioEngine.RegisterNotification(ref notificationDescription);
}
/// <summary>
/// Verifies a notification registration for a particular type.
/// </summary>
/// <param name="notificationType">Type of the notification.</param>
/// <param name="type">The type.</param>
/// <param name="notificationCallback">The notification callback.</param>
/// <exception cref="InvalidOperationException">If this registration is invalid</exception>
/// <returns></returns>
internal static RawNotificationDescription VerifyRegister(NotificationType notificationType, Type type, ManagedNotificationCallback notificationCallback)
{
if (!AllowedNotifications[notificationType].Contains(type))
throw new InvalidOperationException(string.Format(System.Globalization.CultureInfo.InvariantCulture, "Register to notification [{0}] not supported for type [{1}]", notificationType, type));
return new RawNotificationDescription()
{
Type = notificationType,
ContextPointer = Marshal.GetFunctionPointerForDelegate(notificationCallback),
Flags = 1,
CueIndex = -1,
WaveIndex = -1,
};
}
/// <summary>
/// Unregisters this instance to notify for a type of notification.
/// </summary>
/// <param name="notificationType">Type of the notification.</param>
public void UnregisterNotification(NotificationType notificationType)
{
var notificationDescription = VerifyRegister(notificationType, typeof(AudioEngine), callback ?? (callback = OnNotificationDelegate));
notificationDescription.SoundBankPointer = NativePointer;
UnRegisterNotification(ref notificationDescription);
}
/// <summary>
/// Unregisters this instance to notify for a type of notification.
/// </summary>
/// <param name="notificationType">Type of the notification.</param>
public void UnregisterNotification(NotificationType notificationType)
{
if (AudioEngine == null)
{
throw new InvalidOperationException("AudioEngine attached to this instance cannot be null");
}
var notificationDescription = AudioEngine.VerifyRegister(notificationType, typeof(Cue), callback ?? (callback = OnNotificationDelegate));
notificationDescription.CuePointer = NativePointer;
AudioEngine.UnRegisterNotification(ref notificationDescription);
}
