Logo Search packages:      
Sourcecode: scummvm version File versions  Download package

morphos.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001-2005 The ScummVM Team
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/backends/midi/morphos.cpp,v 1.13.2.1 2005/10/18 02:11:16 sev Exp $
 */

#if defined(__MORPHOS__)

#include <exec/memory.h>
#include <exec/types.h>
#include <devices/etude.h>

#include <clib/alib_protos.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/etude.h>

#include "common/stdafx.h"
#include "sound/mpu401.h"
#include "common/util.h"
#include "morphos.h"
#include "morphos_sound.h"

/*
 * MorphOS MIDI driver for Etude device
 */

class MidiDriver_ETUDE : public MidiDriver_MPU401 {
public:
      MidiDriver_ETUDE();
      int open();
      void close();
      void send(uint32 b);

private:
      bool _isOpen;
};

MidiDriver_ETUDE::MidiDriver_ETUDE()
{
      _isOpen = false;
}

int MidiDriver_ETUDE::open()
{
      if (_isOpen)
            return MERR_ALREADY_OPEN;
      _isOpen = true;
      if (!init_morphos_music(ScummMidiUnit, ETUDEF_DIRECT))
            return MERR_DEVICE_NOT_AVAILABLE;

      return 0;
}

void MidiDriver_ETUDE::close()
{
      MidiDriver_MPU401::close();
      exit_morphos_music();
      _isOpen = false;
}

void MidiDriver_ETUDE::send(uint32 b)
{
      if (!_isOpen)
            error("MidiDriver_ETUDE::send called but driver was no opened");

      if (ScummMidiRequest) {
            ULONG midi_data = READ_LE_UINT32(&b);
            SendShortMidiMsg(ScummMidiRequest, midi_data);
      }
}

extern MidiDriver* EtudeMidiDriver;

MidiDriver *MidiDriver_ETUDE_create()
{
      if (!EtudeMidiDriver)
            EtudeMidiDriver = new MidiDriver_ETUDE();
      return EtudeMidiDriver;
}

#endif


Generated by  Doxygen 1.6.0   Back to index