alsaout.h

/*  alsaout.cpp   - class AlsaOut which represents an alsa client/port pair
    This file is part of LibKMid 0.9.5
    Copyright (C) 1997,98,99,2000  Antonio Larrosa Jimenez
    LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.html
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 
    Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
 
***************************************************************************/
#ifndef _ALSAOUT_H
#define _ALSAOUT_H
 
#include <libtdemid/midiout.h>
 
struct snd_seq_event;
typedef struct snd_seq_event snd_seq_event_t;
 
class AlsaOut : public MidiOut
{
  friend class DeviceManager;
 
  protected:
 
  int ndevs;
 
  int nmidiports;
 
  double count;
  double lastcount;
  double lasttime;
  double begintime;
  int m_rate;
 
  double convertrate;
 
  long int time;
 
  virtual void seqbuf_dump (void);
  virtual void seqbuf_clean(void);
  void eventInit(snd_seq_event_t *ev);
  void eventSend(snd_seq_event_t *ep);
  void timerEventSend(int type);
 
  public:
 
  AlsaOut(int d, int client=64, int port=0, const char *cname="", const char *pname="");
 
  virtual ~AlsaOut();
 
  virtual void openDev  (int sqfd);
 
  virtual void closeDev ();
 
  virtual void initDev  ();
 
  int          deviceType () const { return devicetype; }
 
  virtual const char * deviceName (void) const;
 
  int  rate    (void) { return m_rate; }
 
  virtual void noteOn   ( uchar chn, uchar note, uchar vel );
 
  virtual void noteOff  ( uchar chn, uchar note, uchar vel );
 
  virtual void keyPressure  ( uchar chn, uchar note, uchar vel );
 
  virtual void chnPatchChange   ( uchar chn, uchar patch );
 
  virtual void chnPressure  ( uchar chn, uchar vel );
 
  virtual void chnPitchBender   ( uchar chn, uchar lsb,  uchar msb );
 
  virtual void chnController    ( uchar chn, uchar ctl , uchar v );
 
  virtual void sysex        ( uchar *data,ulong size);
 
  virtual void channelSilence   ( uchar chn );
 
  virtual void channelMute  ( uchar chn, int b );
 
  virtual void setVolumePercentage ( int volper )
  { volumepercentage = volper; }
 
  int ok (void)
  { if (seqfd<0) return 0;
    return (_ok>0);
  }
 
  virtual void wait        (double ticks);
  virtual void tmrSetTempo (int v);
  virtual void tmrStart    (int tpcn);
  virtual void tmrStart    () { tmrStart(-1); }
  virtual void tmrStop     ();
  virtual void tmrContinue ();
  void sync        (int i=0);
 
  class AlsaOutPrivate;
  AlsaOutPrivate *di;
};
 
#endif // _ALSAOUT_H