public static AsioDriver GetAsioDriverByGuid(Guid guid)
{
AsioDriver expr_05 = new AsioDriver();
expr_05.InitFromGuid(guid);
return(expr_05);
}
public static AsioDriver GetAsioDriverByName(string name)
{
RegistryKey expr_15 = Registry.LocalMachine.OpenSubKey("SOFTWARE\\ASIO\\" + name);
if (expr_15 == null)
{
throw new ArgumentException(string.Format("Driver Name {0} doesn't exist", name));
}
return(AsioDriver.GetAsioDriverByGuid(new Guid(expr_15.GetValue("CLSID").ToString())));
}
/// <summary>
/// Initializes a new instance of the <see cref="AsioDriverExt"/> class based on an already
/// instantiated AsioDriver instance.
/// </summary>
/// <param name="driver">A AsioDriver already instantiated.</param>
public AsioDriverExt(AsioDriver driver)
{
this.driver = driver;
if (!driver.Init(IntPtr.Zero))
{
throw new InvalidOperationException(driver.GetErrorMessage());
}
callbacks = new AsioCallbacks();
callbacks.pasioMessage = AsioMessageCallBack;
callbacks.pbufferSwitch = BufferSwitchCallBack;
callbacks.pbufferSwitchTimeInfo = BufferSwitchTimeInfoCallBack;
callbacks.psampleRateDidChange = SampleRateDidChangeCallBack;
BuildCapabilities();
}
private void InitFromGuid(Guid asioGuid)
{
int num = AsioDriver.CoCreateInstance(ref asioGuid, IntPtr.Zero, 1u, ref asioGuid, out this.pAsioComObject);
if (num != 0)
{
throw new COMException("Unable to instantiate ASIO. Check if STAThread is set", num);
}
IntPtr ptr = Marshal.ReadIntPtr(this.pAsioComObject);
this.asioDriverVTable = new AsioDriver.AsioDriverVTable();
FieldInfo[] fields = typeof(AsioDriver.AsioDriverVTable).GetFields();
for (int i = 0; i < fields.Length; i++)
{
FieldInfo fieldInfo = fields[i];
object delegateForFunctionPointer = Marshal.GetDelegateForFunctionPointer(Marshal.ReadIntPtr(ptr, (i + 3) * IntPtr.Size), fieldInfo.FieldType);
fieldInfo.SetValue(this.asioDriverVTable, delegateForFunctionPointer);
}
}
