internal void DestroyContext(AlContext ctx)
{
if (!_contexts.Remove(ctx))
{
throw new InvalidOperationException("Device does not own given context.");
}
ALC10.alcMakeContextCurrent(IntPtr.Zero);
ctx.Destroy();
}
/// <summary>
/// Create a context for this device.
/// </summary>
public AlContext CreateContext()
{
CheckDisposed();
var ctxHandle = ALC10.alcCreateContext(_handle, new int[0]);
if (ctxHandle == IntPtr.Zero)
{
AlHelper.AlcCheckError(_handle, "Failed to create context.");
throw new Exception("Failed to create context.");
}
var ctx = new AlContext(this, ctxHandle);
_contexts.Add(ctx);
return(ctx);
}
/// <summary>
/// Create a managed wrapper for the specified audio playback device.
/// Available devices can be queried with <see cref="GetDevices"/>.
/// </summary>
/// <param name="deviceName">Name of the device.</param>
/// <exception cref="Exception">If opening the device or creating the context fails.</exception>
private AlDevice(string deviceName)
{
Name = deviceName ?? DefaultDeviceName;
_handle = ALC10.alcOpenDevice(deviceName);
if (_handle == IntPtr.Zero)
{
throw new Exception("Failed to open device.");
}
_contexts = new List <AlContext>();
_buffers = new List <uint>();
var ctxHandle = ALC10.alcCreateContext(_handle, new int[0]);
if (ctxHandle == IntPtr.Zero)
{
ALC10.alcCloseDevice(_handle);
throw new Exception("Failed to create context.");
}
var ctx = new AlContext(this, ctxHandle);
_contexts.Add(ctx);
}
internal AlStreamingSource(uint name, AlContext context) : base(name, context)
{
}
internal AlStaticSource(uint name, AlContext context) : base(name, context)
{
}
/// <summary>
/// Create an <see cref="AlSource"/>.
/// </summary>
/// <param name="name">Name of the source.</param>
/// <param name="context">Context that owns the source.</param>
protected AlSource(uint name, AlContext context)
{
Name = name;
Context = context;
}
