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smush_mixer.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2002-2005 The ScummVM project
 *
 * 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/scumm/smush/smush_mixer.h,v 1.17.2.1 2005/10/18 02:11:25 sev Exp $
 *
 */

#ifndef SMUSH_MIXER_H
#define SMUSH_MIXER_H

#include "common/stdafx.h"
#include "scumm/sound.h"

namespace Scumm {

class SmushChannel;

class SmushMixer {
      enum {
            NUM_CHANNELS = 16
      };
private:

      Audio::Mixer *_mixer;
      struct channels {
            int id;
            SmushChannel *chan;
            Audio::SoundHandle handle;
            AppendableAudioStream *stream;
      } _channels[NUM_CHANNELS];

      int _soundFrequency;

      Common::Mutex _mutex;

public:

      SmushMixer(Audio::Mixer *);
      virtual ~SmushMixer();
      SmushChannel *findChannel(int32 track);
      void addChannel(SmushChannel *c);
      bool handleFrame();
      bool stop();
      bool update();
};

} // End of namespace Scumm

#endif

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