private void CreateContext(string device, int freq, int refresh, bool sync, bool enableEfx, AudioContext.MaxAuxiliarySends efxAuxiliarySends)
{
if (!AudioDeviceEnumerator.IsOpenALSupported)
{
throw new DllNotFoundException("soft_oal.dll");
}
if (AudioDeviceEnumerator.Version == AudioDeviceEnumerator.AlcVersion.Alc1_1 && AudioDeviceEnumerator.AvailablePlaybackDevices.Count == 0)
{
throw new NotSupportedException("No audio hardware is available.");
}
if (this.context_exists)
{
throw new NotSupportedException("Multiple AudioContexts are not supported.");
}
if (freq < 0)
{
throw new ArgumentOutOfRangeException("freq", (object)freq, "Should be greater than zero.");
}
if (refresh < 0)
{
throw new ArgumentOutOfRangeException("refresh", (object)refresh, "Should be greater than zero.");
}
if (!string.IsNullOrEmpty(device))
{
this.device_name = device;
this.device_handle = Alc.OpenDevice(device);
}
if (this.device_handle == IntPtr.Zero)
{
this.device_name = "IntPtr.Zero (null string)";
this.device_handle = Alc.OpenDevice((string)null);
}
if (this.device_handle == IntPtr.Zero)
{
this.device_name = AudioContext.DefaultDevice;
this.device_handle = Alc.OpenDevice(AudioContext.DefaultDevice);
}
if (this.device_handle == IntPtr.Zero)
{
this.device_name = "None";
throw new AudioDeviceException(string.Format("Audio device '{0}' does not exist or is tied up by another application.", string.IsNullOrEmpty(device) ? (object)"default" : (object)device));
}
else
{
this.CheckErrors();
List <int> list = new List <int>();
if (freq != 0)
{
list.Add(4103);
list.Add(freq);
}
if (refresh != 0)
{
list.Add(4104);
list.Add(refresh);
}
list.Add(4105);
list.Add(sync ? 1 : 0);
if (enableEfx && Alc.IsExtensionPresent(this.device_handle, "ALC_EXT_EFX"))
{
int data;
switch (efxAuxiliarySends)
{
case AudioContext.MaxAuxiliarySends.One:
case AudioContext.MaxAuxiliarySends.Two:
case AudioContext.MaxAuxiliarySends.Three:
case AudioContext.MaxAuxiliarySends.Four:
data = (int)efxAuxiliarySends;
break;
default:
Alc.GetInteger(this.device_handle, AlcGetInteger.EfxMaxAuxiliarySends, 1, out data);
break;
}
list.Add(131075);
list.Add(data);
}
list.Add(0);
this.context_handle = Alc.CreateContext(this.device_handle, list.ToArray());
if (this.context_handle == ContextHandle.Zero)
{
Alc.CloseDevice(this.device_handle);
throw new AudioContextException("The audio context could not be created with the specified parameters.");
}
else
{
this.CheckErrors();
if (AudioDeviceEnumerator.AvailablePlaybackDevices.Count > 0)
{
this.MakeCurrent();
}
this.CheckErrors();
this.device_name = Alc.GetString(this.device_handle, AlcGetString.DeviceSpecifier);
lock (AudioContext.audio_context_lock)
{
AudioContext.available_contexts.Add(this.context_handle, this);
this.context_exists = true;
}
}
}
}
public AudioContext(string device, int freq, int refresh, bool sync, bool enableEfx, AudioContext.MaxAuxiliarySends efxMaxAuxSends)
{
this.CreateContext(device, freq, refresh, sync, enableEfx, efxMaxAuxSends);
}
