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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2003 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef SMUSH_MIXER_H
#define SMUSH_MIXER_H
#include "config.h"
#ifdef DEBUG
# ifndef NO_DEBUG_MIXER
# define DEBUG_MIXER
# endif
#else
# ifdef DEBUG_MIXER
# error DEBUG_MIXER defined without DEBUG
# endif
#endif
class _Channel;
class SoundRenderer;
/*! @brief The class for the player's sound mixer
This class is used for sound mixing.
It contains a list of current track and request them to mix.
It then sends the mixed sound samples to the sound renderer.
*/
class Mixer {
public:
virtual ~Mixer() {};
virtual bool init() = 0;
virtual _Channel * findChannel(int32 track) = 0;
virtual bool addChannel(_Channel * c) = 0;
virtual bool handleFrame() = 0;
virtual bool stop() = 0;
};
#endif
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