public Stream(Guid DeviceId, Audio.Stream.SampleHandler Callback, Channel[] Input, Channel[] Output)
: base(Input, Output)
{
Log.Global.WriteLine(MessageType.Info, "Instantiating ASIO stream with {0} input channels and {1} output channels.", Input.Length, Output.Length);
asio = new AsioObject(DeviceId);
asio.Init(IntPtr.Zero);
callback = Callback;
// Just use the driver's preferred buffer size.
bufferSize = asio.BufferSize.Preferred;
ASIOBufferInfo[] infos = new ASIOBufferInfo[Input.Length + Output.Length];
for (int i = 0; i < Input.Length; ++i)
{
infos[i].isInput = ASIOBool.True;
infos[i].channelNum = Input[i].Index;
}
for (int i = 0; i < Output.Length; ++i)
{
infos[Input.Length + i].isInput = ASIOBool.False;
infos[Input.Length + i].channelNum = Output[i].Index;
}
ASIOCallbacks callbacks = new ASIOCallbacks()
{
bufferSwitch = OnBufferSwitch,
sampleRateDidChange = OnSampleRateChange,
asioMessage = OnAsioMessage,
bufferSwitchTimeInfo = OnBufferSwitchTimeInfo
};
asio.CreateBuffers(infos, bufferSize, callbacks);
// Create input buffers.
input = new BufferInfo[Input.Length];
inputBuffers = new Audio.SampleBuffer[Input.Length];
for (int i = 0; i < Input.Length; ++i)
{
input[i] = new BufferInfo(infos[i], Input[i].Type);
inputBuffers[i] = new Audio.SampleBuffer(bufferSize);
}
// Create output buffers.
output = new BufferInfo[Output.Length];
outputBuffers = new Audio.SampleBuffer[Output.Length];
for (int i = 0; i < Output.Length; ++i)
{
output[i] = new BufferInfo(infos[Input.Length + i], Output[i].Type);
outputBuffers[i] = new Audio.SampleBuffer(bufferSize);
}
sampleRate = asio.SampleRate;
asio.Start();
}
public Stream(Guid DeviceId, Audio.Stream.SampleHandler Callback, Channel[] Input, Channel[] Output)
: base(Input, Output)
{
Log.Global.WriteLine(MessageType.Info, "Instantiating ASIO stream with {0} input channels and {1} output channels.", Input.Length, Output.Length);
asio = new AsioObject(DeviceId);
asio.Init(IntPtr.Zero);
callback = Callback;
buffer = asio.BufferSize.Preferred;
ASIOBufferInfo[] infos = new ASIOBufferInfo[Input.Length + Output.Length];
for (int i = 0; i < Input.Length; ++i)
{
infos[i].isInput = ASIOBool.True;
infos[i].channelNum = Input[i].Index;
}
for (int i = 0; i < Output.Length; ++i)
{
infos[Input.Length + i].isInput = ASIOBool.False;
infos[Input.Length + i].channelNum = Output[i].Index;
}
ASIOCallbacks callbacks = new ASIOCallbacks()
{
bufferSwitch = OnBufferSwitch,
sampleRateDidChange = OnSampleRateChange,
asioMessage = OnAsioMessage,
bufferSwitchTimeInfo = OnBufferSwitchTimeInfo
};
asio.CreateBuffers(infos, buffer, callbacks);
input = new Buffer[Input.Length];
for (int i = 0; i < Input.Length; ++i)
input[i] = new Buffer(infos[i], Input[i].Type, buffer);
output = new Buffer[Output.Length];
for (int i = 0; i < Output.Length; ++i)
output[i] = new Buffer(infos[Input.Length + i], Output[i].Type, buffer);
sampleRate = asio.SampleRate;
asio.Start();
}
public Buffer(ASIOBufferInfo Info, ASIOSampleType Type, int Count)
{
info = Info;
type = Type;
samples = new Audio.SampleBuffer(Count);
}
public void CreateBuffers(ASIOBufferInfo[] Infos, int Size, ASIOCallbacks Callbacks)
{
pins = new GCHandle[]
{
GCHandle.Alloc(Callbacks.bufferSwitch),
GCHandle.Alloc(Callbacks.sampleRateDidChange),
GCHandle.Alloc(Callbacks.asioMessage),
GCHandle.Alloc(Callbacks.bufferSwitchTimeInfo)
};
callbacks = Marshal.AllocHGlobal(Marshal.SizeOf(Callbacks));
Marshal.StructureToPtr(Callbacks, callbacks, false);
Log.Global.WriteLine(MessageType.Info, "AsioObject.CreateBuffers(Size={0})", Size);
Try(vtbl.createBuffers(_this, Infos, Infos.Length, Size, callbacks));
}
public BufferInfo(ASIOBufferInfo Info, ASIOSampleType Type)
{
info = Info;
type = Type;
}
public Buffer(ASIOBufferInfo Info, ASIOSampleType Type, int Count)
{
info = Info;
type = Type;
samples = new Audio.SampleBuffer(Count);
}