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sdl-mixer.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef BACKENDS_MIXER_SDL_H
00024 #define BACKENDS_MIXER_SDL_H
00025 
00026 #include "backends/platform/sdl/sdl-sys.h"
00027 #include "audio/mixer_intern.h"
00028 
00035 class SdlMixerManager {
00036 public:
00037     SdlMixerManager();
00038     virtual ~SdlMixerManager();
00039 
00043     virtual void init();
00044 
00048     Audio::Mixer *getMixer() { return (Audio::Mixer *)_mixer; }
00049 
00050     // Used by LinuxMoto Port
00051 
00055     virtual void suspendAudio();
00056 
00060     virtual int resumeAudio();
00061 
00062 protected:
00064     Audio::MixerImpl *_mixer;
00065 
00070     SDL_AudioSpec _obtained;
00071 
00073     bool _audioSuspended;
00074 
00078     virtual SDL_AudioSpec getAudioSpec(uint32 rate);
00079 
00083     virtual void startAudio();
00084 
00088     virtual void callbackHandler(byte *samples, int len);
00089 
00094     static void sdlCallback(void *this_, byte *samples, int len);
00095 };
00096 
00097 #endif


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