AudioManager.h

Go to the documentation of this file.

/*
 * AudioManager.h
 *
 * Part of Fly! Legacy project
 *
 * Copyright 2003 Chris Wallace
 *
 * Fly! Legacy 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.
 *
 * Fly! Legacy 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 Fly! Legacy; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef AUDIOMANAGER_H_
#define AUDIOMANAGER_H_

#include "FlyLegacy.h"
#include <string>
#include <map>

#ifdef HAVE_OPENAL
#include <al/al.h>
#include <al/alc.h>
#include <al/alut.h>
#endif // HAVE_OPENAL


class CSoundEffect {
public:
  // Constructor
  CSoundEffect (void);

  // Destructor
  ~CSoundEffect (void);

public:
  bool        bound;              // Whether the sound effect is bound to a source
#ifdef HAVE_OPENAL
  ALuint      source;             // OpenAL Source object
  ALuint      buffer;             // OpenAL Buffer object
#endif // HAVE_OPENAL
  char        wavfile[256];       // Filename of WAV file
  int         name;               // Unique identifier for this sound effect
  int         user1, user2;       // User data tags
}; 

class CAudioManager {
public:
  // Constructor
  CAudioManager (void);
  ~CAudioManager (void);

  // CAudioManager methods
  void Init (void);
  void SetListenerPosition (SPosition *p);

  int  CreateSource (void);
  void SetSourcePosition (int name, SPosition *p);
  void SetSourcePosition (int name, SVector *v);
  void SetSourceDirection (int name, SVector *v);
  void SetSourceVelocity (int name, SVector *v);
  void SetSourceFrequency (int name, float freqScalar);
  void AssignSfx (int source, int buffer);

  int  CreateSfx (PFS *pfs, const char* wavfile);
  int  IsValidSfx (int name);
  int  PlaySfx (int source, PFS *pfs, const char* wavfile);
  int  PlaySfx (int source, int name);
  int  PlaySfxDelay (int source, PFS *pfs, const char* wavfile, float delay, float *length);
  int  PlaySfxDelay (int source, int name, float delay, float *length);
  void StopSfx (int name);
  void StopSfxByUserData (int user1, int user2);
  void SetSfxVolume (int name, float volume);
  void SetSfxPosition (int name, SPosition *p);
  void SetSfxPosition (int name, SVector *v);
  void SetSfxDirection (int name, SVector *v);
  void SetSfxVelocity (int name, SVector *v);
  void SetSfxFrequency (int name, float freqScalar);
  void SetSfxUserData (int name, int user1, int user2);

private:
  CSoundEffect *GetSoundEffect (int name);
  CSoundEffect *GetFirstSoundEffectByUserData (int user1, int user2);
  CSoundEffect *GetNextSoundEffectByUserData (int user1, int user2);

  // Data members
//private:
public:
#ifdef HAVE_OPENAL
  // OpenAL
  ALCcontext    *context;
  ALCdevice     *device;
#endif // HAVE_OPENAL

  // Sound effect cache, indexed by WAV filenames
  std::map<std::string,CSoundEffect*> cache;

  // Position/fading/doppler parameters
  SPosition     listenerPos;

private:
  // Iterator used to lookup cached sound effects by user data
  std::map<std::string,CSoundEffect*>::iterator iterUserData;
};

#endif // AUDIOMANAGER_H_

Documentation generated by