public unsafe XtStream AggregateStream(XtDevice[] devices, XtChannels[] channels,
double[] bufferSizes, int count, XtMix mix, bool interleaved, bool raw,
XtDevice master, XtStreamCallback streamCallback, XtXRunCallback xRunCallback, object user)
{
IntPtr str;
IntPtr channelsPtr = IntPtr.Zero;
IntPtr[] ds = devices.Select(d => d.d).ToArray();
XtStream stream = new XtStream(raw, streamCallback, xRunCallback, user);
try {
int size = Marshal.SizeOf(typeof(XtChannels));
channelsPtr = Marshal.AllocHGlobal(count * size);
for (int i = 0; i < count; i++)
{
Marshal.StructureToPtr(channels[i], new IntPtr((byte *)channelsPtr + i * size), false);
}
XtNative.HandleError(XtNative.XtServiceAggregateStream(s, ds, channelsPtr, bufferSizes, count,
mix, interleaved, master.d, stream.streamCallbackPtr, stream.xRunCallbackPtr, IntPtr.Zero, out str));
} finally {
if (channelsPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(channelsPtr);
}
}
stream.Init(str);
return(stream);
}
public XtStream OpenStream(XtFormat format, bool interleaved, bool raw, double bufferSize,
XtStreamCallback streamCallback, XtXRunCallback xRunCallback, object user)
{
IntPtr s;
XtStream stream = new XtStream(raw, streamCallback, xRunCallback, user);
XtNative.Format native = XtNative.Format.ToNative(format);
XtNative.HandleError(XtNative.XtDeviceOpenStream(d, ref native, interleaved,
bufferSize, stream.streamCallbackPtr, stream.xRunCallbackPtr, IntPtr.Zero, out s));
stream.Init(s);
return(stream);
}
internal XtStream(bool raw, XtStreamCallback streamCallback, XtXRunCallback xRunCallback, object user) {
this.raw = raw;
this.user = user;
this.xRunCallback = xRunCallback;
this.streamCallback = streamCallback;
this.win32StreamCallback = new XtNative.StreamCallbackWin32(StreamCallback);
this.linuxStreamCallback = new XtNative.StreamCallbackLinux(StreamCallback);
Delegate streamCallbackDelegate = Environment.OSVersion.Platform == PlatformID.Win32NT
? (Delegate)win32StreamCallback : linuxStreamCallback;
streamCallbackPtr = Marshal.GetFunctionPointerForDelegate(streamCallbackDelegate);
if (xRunCallback != null) {
this.win32XRunCallback = new XtNative.XRunCallbackWin32(XRunCallback);
this.linuxXRunCallback = new XtNative.XRunCallbackLinux(XRunCallback);
Delegate xRunCallbackDelegate = Environment.OSVersion.Platform == PlatformID.Win32NT
? (Delegate)win32XRunCallback : linuxXRunCallback;
xRunCallbackPtr = Marshal.GetFunctionPointerForDelegate(xRunCallbackDelegate);
}
}
