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AlsaDriver.h

/* This file is part of Patchage.  Copyright (C) 2005 Dave Robillard.
 * 
 * Om 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.
 * 
 * Om 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 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
 */

#ifndef ALSADRIVER_H
#define ALSADRIVER_H

#include <iostream>
#include <alsa/asoundlib.h>
#include <pthread.h>
#include <queue>
#include <string>
class Patchage;
class PatchagePort;
class PatchagePatchBayArea;

using std::queue; using std::string;


/** Handles all externally driven functionality, registering ports etc.
 */
00034 class AlsaDriver
{
public:
      AlsaDriver(Patchage* app, pthread_mutex_t* refresh_mutex);
      ~AlsaDriver();
      
      void attach();
      void detach();

      void refresh();

      bool connect(const PatchagePort* const src_port, const PatchagePort* const dst_port);
      bool disconnect(const PatchagePort* const src_port, const PatchagePort* const dst_port);
      
      PatchagePatchBayArea* patch_bay() { return m_patch_bay; }

private:
      void refresh_ports();
      void refresh_connections();
      
      void add_connections(PatchagePort* port);
      
      bool create_refresh_port();
      static void* refresh_main(void* me);
      void m_refresh_main();
      
      Patchage*             m_app;
      PatchagePatchBayArea* m_patch_bay;

      snd_seq_t* m_seq;

      pthread_mutex_t* m_refresh_mutex;
      pthread_t        m_refresh_thread;
};


#endif // ALSADRIVER_H

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