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/* ScummVM - Graphic Adventure Engine
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 * 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
 * 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.
 * $URL$
 * $Id$


#include "backends/platform/sdl/sdl-sys.h"
#include "audio/mixer_intern.h"

 * SDL mixer manager. It wraps the actual implementation
 * of the Audio:Mixer used by the engine, and setups
 * the SDL audio subsystem and the callback for the
 * audio mixer implementation.
00038 class SdlMixerManager {
      virtual ~SdlMixerManager();

       * Initialize and setups the mixer
      virtual void init();

       * Get the audio mixer implementation
00051       Audio::Mixer *getMixer() { return (Audio::Mixer *)_mixer; }

      // Used by LinuxMoto Port

       * Pauses the audio system
      virtual void suspendAudio();

       * Resumes the audio system
      virtual int resumeAudio();

      /** The mixer implementation */
00067       Audio::MixerImpl *_mixer;

       * The obtained audio specification after opening the
       * audio system.
00073       SDL_AudioSpec _obtainedRate;

      /** State of the audio system */
00076       bool _audioSuspended;

       * Returns the desired audio specification 
      virtual SDL_AudioSpec getAudioSpec(uint32 rate);

       * Starts SDL audio
      virtual void startAudio();

       * Handles the audio callback
      virtual void callbackHandler(byte *samples, int len);

       * The mixer callback entry point. Static functions can't be overrided
       * by subclasses, so it invokes the non-static function callbackHandler()
      static void sdlCallback(void *this_, byte *samples, int len);


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