unsafe public virtual void openOutput(int outputDevice, string outputDriverInfo, int bufferSize, int latency)
{
CsPortMidiApi.PortMidiStream stream;
if (OpenOutput)
{
CsPortMidiApi.Pm_Close(output);
}
else
{
stream = new CsPortMidiApi.PortMidiStream();
output = &stream;
}
if (trace)
{
Console.WriteLine("openOutput " + getDeviceName(outputDevice));
}
fixed(CsPortMidiApi.PortMidiStream **p = &output)
{
checkError(CsPortMidiApi.Pm_OpenOutput(p, outputDevice, outputDriverInfo, bufferSize, latency));
}
// if no exception, then increase count of open streams
openCount++;
}
unsafe public virtual void abort()
{
if (output == null)
{
return; // no effect if output not open
}
checkError(CsPortMidiApi.Pm_Abort(output));
}
// WARNING: you must not call this if any devices are open
public virtual void refreshDeviceLists()
{
if (openCount > 0)
{
throw new CsPortMidiException(pmStreamOpen, "RefreshDeviceLists called while stream is open");
}
checkError(CsPortMidiApi.Pm_Terminate());
checkError(CsPortMidiApi.Pm_Initialize());
}
protected internal bool trace = false; // used to print midi msgs for debugging
public CsPortMidi()
{
if (pmRefCount == 0)
{
pm = new CsPortMidiApi();
pmRefCount++;
checkError(CsPortMidiApi.Pm_Initialize());
}
buffer = new CsPortMidiApi.PmEvent();
}
unsafe public virtual void closeOutput()
{
if (output == null)
{
return; // no effect if output not open
}
checkError(CsPortMidiApi.Pm_Close(output));
output = null;
openCount--;
}
unsafe public virtual void writeShort(int @when, int msg)
{
if (output == null)
{
throw new CsPortMidiException(pmOutputNotOpen, "Output stream not open");
}
if (trace)
{
Console.WriteLine("writeShort: 0x" + msg.ToString("X8"));
}
checkError(CsPortMidiApi.Pm_WriteShort(output, @when, msg));
}
unsafe public virtual bool getDeviceOutput(int i)
{
bool result;
CsPortMidiApi.PmDeviceInfo *dev = (CsPortMidiApi.PmDeviceInfo *)CsPortMidiApi.Pm_GetDeviceInfo(i);
if (dev == null)
{
result = false;
}
else
{
result = dev->output == 1 ? true : false;
}
return(result);
}
unsafe public virtual void writeSysEx(int @when, sbyte[] msg)
{
if (output == null)
{
throw new CsPortMidiException(pmOutputNotOpen, "Output stream not open");
}
if (trace)
{
Console.Write("writeSysEx: ");
for (int i = 0; i < msg.Length; i++)
{
Console.Write(msg[i].ToString("x"));
}
Console.Write("\n");
}
checkError(CsPortMidiApi.Pm_WriteSysEx(output, @when, msg));
}
// Poll should be called by client to process input messages (if any)
unsafe public virtual void poll()
{
if (input == null)
{
return; // does nothing until input is opened
}
while (true)
{
int rslt = CsPortMidiApi.Pm_Read(input, buffer);
checkError(rslt);
if (rslt == 0)
{
return; // no more messages
}
handleMidiIn(buffer);
}
}
internal virtual int checkError(int err)
{
// note that Pm_Read and Pm_Write return positive result values
// which are not errors, so compare with >=
if (err >= pm.pmNoError)
{
return(err);
}
if (err == pm.pmHostError)
{
throw new CsPortMidiException(err, CsPortMidiApi.Pm_GetHostErrorText());
}
else
{
throw new CsPortMidiException(err, CsPortMidiApi.Pm_GetErrorText(err));
}
}
unsafe public virtual string getDeviceName(int i)
{
string strName;
CsPortMidiApi.PmDeviceInfo *dev = (CsPortMidiApi.PmDeviceInfo *)CsPortMidiApi.Pm_GetDeviceInfo(i);
IntPtr pU = dev->name;
if (pU == IntPtr.Zero)
{
strName = null;
}
else
{
strName = Marshal.PtrToStringAnsi(pU);
}
return(strName);
}
// ******* QUERY DEVICE INFORMATION *********
public virtual int countDevices()
{
return(checkError(CsPortMidiApi.Pm_CountDevices()));
}
public virtual bool timeStarted()
{
return(CsPortMidiApi.Pt_TimeStarted());
}
public virtual int timeGet()
{
return(CsPortMidiApi.Pt_Time());
}
public virtual void timeStop()
{
checkError(CsPortMidiApi.Pt_TimeStop());
}
// ******** ACCESS TO TIME ***********
public virtual void timeStart(int resolution)
{
checkError(CsPortMidiApi.Pt_TimeStart(resolution));
}
