/home/marsyas/marsyas/src/marsyas/MidiOutput.cpp

/*
 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
 **  
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License as published by
 ** the Free Software Foundation; either version 2 of the License, or
 ** (at your option) any later version.
 ** 
 ** This program is distributed in the hope that it will be useful,
 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ** GNU General Public License for more details.
 ** 
 ** You should have received a copy of the GNU General Public License
 ** along with this program; if not, write to the Free Software 
 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "MidiOutput.h"

#ifdef MARSYAS_MIDIIO
#include "RtMidi.h"
#endif 


using std::ostringstream;
using namespace Marsyas;

MidiOutput::MidiOutput(mrs_string name):MarSystem("MidiOutput",name)
{  
#ifdef MARSYAS_MIDIIO
    midiout = NULL;
#endif 
    addControls();
}


MidiOutput::MidiOutput(const MidiOutput& a):MarSystem(a)
{
#ifdef MARSYAS_MIDIIO
    midiout = NULL;
#endif 
    ctrl_byte1_ = getctrl("mrs_natural/byte1");
    ctrl_byte2_ = getctrl("mrs_natural/byte2");
    ctrl_byte3_ = getctrl("mrs_natural/byte3");
    ctrl_sendMessage_ = getctrl("mrs_bool/sendMessage");
}

MidiOutput::~MidiOutput()
{
#ifdef MARSYAS_MIDIIO
    delete midiout;
#endif
}


MarSystem* 
MidiOutput::clone() const 
{
    return new MidiOutput(*this);
}


    void 
MidiOutput::addControls()
{
    addctrl("mrs_natural/byte1", 64, ctrl_byte1_);
    addctrl("mrs_natural/byte2", 64, ctrl_byte2_);
    addctrl("mrs_natural/byte3", 64, ctrl_byte3_);
    addctrl("mrs_bool/sendMessage", false, ctrl_sendMessage_);

    addctrl("mrs_natural/port", 0);
    addctrl("mrs_bool/virtualPort", false);
    addctrl("mrs_bool/initMidi", false);

    setctrlState("mrs_bool/sendMessage", true);
    setctrlState("mrs_bool/virtualPort", true);
    setctrlState("mrs_natural/port", true);
    setctrlState("mrs_natural/port", true);
}

 void
MidiOutput::myUpdate(MarControlPtr sender)
{
    MRSDIAG("MidiOutput.cpp - MidiOutput:myUpdate");
    MarSystem::myUpdate(sender);

#ifdef MARSYAS_MIDIIO

    initMidi = getctrl("mrs_bool/initMidi")->to<mrs_bool>();
    virtualPort = getctrl("mrs_bool/virtualPort")->to<mrs_bool>();
    
    if (initMidi)
      {
        if (midiout == NULL) 
        {
            try { 
                midiout = new RtMidiOut();
            } 
            catch (RtError3 &error) { 
                error.printMessage();
                return;
            }

            if (virtualPort)
            {
                try
                {
                    midiout->openVirtualPort("MarsyasOutput");                    
                }
                catch(RtError3 &error)
                {
                    error.printMessage();
                    return;
                }
                    message.push_back(0);
                    message.push_back(0);
                    message.push_back(0);
            }
            else
            {
                {
                    try { 
                        midiout->openPort( getctrl("mrs_natural/port")->to<mrs_natural>() );
                    }
                    catch (RtError3 &error) 
                    {
                        error.printMessage();
                        return;
                    } 
                    message.push_back(0);
                    message.push_back(0);
                    message.push_back(0);
                }
            }
        }
        mrs_bool sendMessage = ctrl_sendMessage_->to<mrs_bool>();
        if (sendMessage) 
        {
      message[0] = (unsigned char)ctrl_byte1_->to<mrs_natural>();
      message[1] = (unsigned char)ctrl_byte2_->to<mrs_natural>();
      message[2] = (unsigned char)ctrl_byte3_->to<mrs_natural>();
      
      midiout->sendMessage( &message );
      setctrl(ctrl_sendMessage_, false);
        }
      }
#endif

}

void MidiOutput::myProcess(realvec& in, realvec& out)
{
    mrs_natural t,o;
    for (o=0; o < inObservations_; o++)
        for (t = 0; t < inSamples_; t++)
        {
            out(o,t) =  in(o,t);
        }
}

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