KMIDI.cc

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/*
Copyright (C) 2000  Dancer A.L Vesperman

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.
*/

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#ifdef XWIN

#include "KMIDI.h"

#ifndef ALPHA_LINUX_CXX
#  include <unistd.h>
#  include <csignal>
#endif
#include "fnames.h"

#include "Configuration.h"
extern  Configuration *config;


#if HAVE_LIBKMIDI

int kmidi_device_selection(void)
{
  int num_devices=kMidDevices();

  if(!num_devices)
    return -1;
  cout << "Device\tType\tIdentity" << endl;
  cout << "-1\tnone\tdisable kmidi" << endl;
  for(int i=0;i<num_devices;i++)
    {
    cout << i <<"\t"<< kMidType(i) << "\t" << kMidName(i) << endl;
    }
  string  s;
  cout << endl << "Select a device for kmidi to use.." << endl;
  cin >> s;
  return atoi(s.c_str());
}

KMIDI::KMIDI()
{
  cerr << "libkmid initialisation..." << endl;
  if(KMidSimpleAPI::kMidInit())
    {
    cerr << "failed. Falling back..." << endl;
    throw 0;
    }

  // This is probably not right for anyone but me

  int devnum;
  bool  changed=false;

  config->value("config/audio/midi/kmidi/device",devnum,-2);
  if(devnum==-1)
    {
    // kmidi is disabled
    throw 0;
    }
  if(devnum==-2)
    {
    devnum=kmidi_device_selection();
    changed=true;
    if(devnum==-1)
      {
      // User disabled kmidi
      devnum=-2;
      config->set("config/audio/midi/kmidi/device",devnum,true);
      throw 0;
      }
    }
  kMidSetDevice(devnum);
  if(changed)
    {
    config->set("config/audio/midi/kmidi/device",devnum,true);
    }
}

KMIDI::~KMIDI()
{}


void  KMIDI::start_track(XMIDIEventList *event_list,bool repeat)
{
  const char *name = MIDITMPFILE;
  event_list->Write(name);

  if(is_playing())
    stop_track();
  repeat_=repeat;
#if DEBUG
  cerr << "Starting midi sequence with KMIDI: " << name << endl;
#endif

  KMidSimpleAPI::kMidLoad(name);

  // Something (probably SDL) traps SIGTERM which makes getting
  // rid of the repeating track a problem. This fixes it:
  signal(SIGTERM,SIG_DFL);

  KMidSimpleAPI::kMidPlay((repeat)?255:0);
}

void  KMIDI::stop_track(void)
{
  KMidSimpleAPI::kMidStop();
}

bool  KMIDI::is_playing(void)
{
  return KMidSimpleAPI::kMidIsPlaying();
}

const char *KMIDI::copyright(void)
{
  return KMidSimpleAPI::kMidCopyright();
}
  
#endif // HAVE_LIBKMIDI

#endif // XWIN

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