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90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
//-*-C++-*-
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/*
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* KMix -- KDE's full featured mini mixer
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*
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* Copyright Christian Esken <esken@kde.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef MIXER_ALSA_H
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#define MIXER_ALSA_H
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// QT includes
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#include <QList>
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#include <QHash>
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// Forward QT includes
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class QString;
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class QSocketNotifier;
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#include "mixer_backend.h"
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extern "C"
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{
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#include <alsa/asoundlib.h>
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}
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class Mixer_ALSA : public Mixer_Backend
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{
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public:
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explicit Mixer_ALSA(Mixer *mixer, int device = -1 );
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~Mixer_ALSA();
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virtual int readVolumeFromHW( const QString& id, shared_ptr<MixDevice> md );
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virtual int writeVolumeToHW ( const QString& id, shared_ptr<MixDevice> md );
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virtual void setEnumIdHW( const QString& id, unsigned int);
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virtual unsigned int enumIdHW(const QString& id);
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virtual bool prepareUpdateFromHW();
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virtual bool needsPolling() { return false; }
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virtual QString getDriverName();
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protected:
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virtual int open();
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virtual int close();
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int id2num(const QString& id);
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private:
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int openAlsaDevice(const QString& devName);
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void addEnumerated(snd_mixer_elem_t *elem, QList<QString*>&);
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Volume* addVolume(snd_mixer_elem_t *elem, bool capture);
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int setupAlsaPolling();
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void deinitAlsaPolling();
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virtual bool isRecsrcHW( const QString& id );
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int identify( snd_mixer_selem_id_t *sid );
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snd_mixer_elem_t* getMixerElem(int devnum);
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virtual QString errorText(int mixer_error);
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typedef QList<snd_mixer_selem_id_t *>AlsaMixerSidList;
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AlsaMixerSidList mixer_sid_list;
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typedef QList<snd_mixer_elem_t *> AlsaMixerElemList;
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AlsaMixerElemList mixer_elem_list;
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typedef QHash<QString,int> Id2numHash;
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Id2numHash m_id2numHash;
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bool _initialUpdate;
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snd_mixer_t* _handle;
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snd_ctl_t* ctl_handle;
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QString devName;
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struct pollfd *m_fds;
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QList<QSocketNotifier*> m_sns;
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//int m_count;
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static bool warnOnce;
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};
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#endif
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