osoundsystem.h

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/*
                             This file is part of the Opie Project
              =.             (C) 2003-2005 Michael 'Mickey' Lauer <mickey@Vanille.de>
            .=l.
           .>+-=
 _;:,     .>    :=|.         This program is free software; you can
.> <`_,   >  .   <=          redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
.="- .-=="i,     .._         License as published by the Free Software
 - .   .-<_>     .<>         Foundation; version 2 of the License.
     ._= =}       :
    .%`+i>       _;_.
    .i_,=:_.      -<s.       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
..}^=.=       =       ;      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., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#ifndef OSOUNDSYSTEM_H
#define OSOUNDSYSTEM_H

#include <qobject.h>
#include <qdict.h>
#include <qmap.h>

namespace Opie {
namespace MM {

class OAudioInterface;
class OMixerInterface;
class OSoundCard;

/*======================================================================================
 * OSoundSystem
 *======================================================================================*/

class OSoundSystem : public QObject
{
  Q_OBJECT

  public:
    typedef QDict<OSoundCard> CardMap;
    typedef QDictIterator<OSoundCard> CardIterator;

  public:
    int count() const;
    static OSoundSystem* instance();
    CardIterator iterator() const;
    OSoundCard* card( const QString& interface ) const;
    void synchronize();

  protected:
    OSoundSystem();

  private:
    static OSoundSystem* _instance;
    CardMap _interfaces;
    class Private;
    Private *d;
};


/*======================================================================================
 * OSoundCard
 *======================================================================================*/

class OSoundCard : public QObject
{
  Q_OBJECT

  public:
    OSoundCard( QObject* parent, const char* name );
    virtual ~OSoundCard();

    bool hasMixer() const { return _audio; };
    bool hasAudio() const { return _mixer; };

    OAudioInterface* audio() const { return _audio; };
    OMixerInterface* mixer() const { return _mixer; };

  protected:
    OAudioInterface* _audio;
    OMixerInterface* _mixer;

  private:
    void init();
  private:
    class Private;
    Private *d;
};

/*======================================================================================
 * OAudioInterface
 *======================================================================================*/

class OAudioInterface : public QObject
{
  Q_OBJECT

  public:
    OAudioInterface( QObject* parent, const char* name );
    virtual ~OAudioInterface();

  protected:
    const int _sfd;

  private:
    void init();
  private:
    class Private;
    Private *d;
};


/*======================================================================================
 * OMixerInterface
 *======================================================================================*/

class OMixerInterface : public QObject
{
  Q_OBJECT

  public:

    typedef QMap<QString,int>::ConstIterator ChannelIterator;

    OMixerInterface( QObject* parent, const char* name );
    virtual ~OMixerInterface();

    QStringList allChannels() const;
    QStringList recChannels() const;
    QStringList playChannels() const;
    bool hasMultipleRecording() const;
    bool hasChannel( const QString& channel ) const;
    bool isStereo( const QString& channel ) const;
    bool isRecordable( const QString& channel ) const;
    void setVolume( const QString& channel, int left, int right = -1 );
    int volume( const QString& channel ) const;

  protected:
    int _fd;
    int _capmask;
    int _devmask;
    int _recmask;
    int _stmask;
    QMap<QString,int> _channels;

  private:
    void init();
  private:
    class Private;
    Private *d;
};

}
}

#endif // OSOUNDSYSTEM_H

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