include/sound.h

Go to the documentation of this file.

/***************************************************************************
 *            sound.h
 *
 *  Fri May 13 19:01:29 2005
 *  Copyright  2005  Joe Venzon
 *  joe@venzon.net
 ****************************************************************************/

/*
 *  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 Library 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.
 */
 
#ifndef _SOUND_H

#include <stdio.h>                      // Header File For Standard Input/Output
#include <GL/gl.h>
#include <GL/glu.h>
#include <SDL/SDL.h>
#ifdef __APPLE__
#include <SDL_image/SDL_image.h>
#else
#include <SDL/SDL_image.h>
#endif
#include <string>
#include <iostream>
#include <fstream>
#include <cmath>
#include <cassert>
#include <stdlib.h>

#include <map>

#include "camera.h"
#include "utility.h"

//#include "backdrop.h"
//#include "weather.h"

#include "globals.h"

using namespace std;

#define MAX_BUFFERS 50

#ifdef __APPLE__
       #include <OpenAL/al.h>
       #include <OpenAL/alc.h>
       //#include <OpenAL/alut.h> // Mac OS X 10.4.7 broke alut
           #include "alut.h"
#else
       #include <AL/al.h>
       #include <AL/alc.h>
       //#include <AL/alu.h>
       #include <AL/alut.h>
#endif

#define MAX_SOURCES 10

#define DISTANCE_FACTOR 0.025
//#define VELOCITY_FACTOR 1.0/DISTANCE_FACTOR
#define VELOCITY_FACTOR 1.5

class SOUNDMANAGER
{
private:
        // Buffers to hold sound data.
        /*ALuint * buffers;
        int buf_cur;
        string * buf_fn;
        
        // Sources are points of emitting sound.
        ALuint sources[MAX_SOURCES];
        bool source_free[MAX_SOURCES];

        bool muted;

        bool disable;

        float master_volume;*/

        ALCdevice* mSoundDevice;
        ALCcontext* mSoundContext;

        bool init;
        bool disabled;
        bool loaded;
        
        map <string, ALuint> buffers;
        vector <ALuint> sources;
        vector <bool> source_free;
        
        float master_volume;
        
        void Load();
        
        void LoadSoundFile(string filename);
        
        void UnloadWave(ALvoid* data);
        bool LoadWave(string fname, ALenum *format, ALvoid **data, ALsizei *size, ALsizei *freq, ALboolean *loop);
        bool IDMatchesString(const char * id, const char * str);
        
public:
        SOUNDMANAGER() {init=false;disabled=false;loaded=false;master_volume=1.0;}
        ~SOUNDMANAGER() {Deinit();}
        
        void Init();
        void Deinit();
        void Reload();
        void Unload();
        void DisableAllSound() {disabled=true;}
        void SetMasterVolume(float newvol) {master_volume = newvol; if (master_volume < 0) master_volume = 0; if (master_volume > 1) master_volume = 1;}
        float GetMasterVolume() {return master_volume;}
        void UpdateSettings() { float sound_vol; settings.Get( "sound.volume", sound_vol ); SetMasterVolume( sound_vol ); }
        void MuteAll();
        void UnMuteAll();
        
        void SetListenerPos(VERTEX pos);
        void SetListenerVel(VERTEX vel);
        void SetListenerOrientation(VERTEX at, VERTEX up);
        void SetPosVel(int sid, VERTEX coord, VERTEX tvel);
        void SetListener(VERTEX campos, VERTEX camvel, VERTEX at, VERTEX up);
        void SetPitch(int sid, float pitch);
        void SetGain(int sid, float gain);
        void SetPos(int sid, VERTEX pos);
        void SetVel(int sid, VERTEX vel);
        
        ALuint NewSource(string buffername);
        ALuint NewSource(string buffername, bool & error);
        void StopSource(int sid);
        void PlaySource(int idx);
        void Update() {}
        
        // Gentoo
        /*ALCdevice* mSoundDevice;
        ALCcontext* mSoundContext;
        
        void Load();
        void LoadAllSoundFiles();
        void LoadSoundFile(string filename);
        ~SOUNDMANAGER();
        SOUNDMANAGER();

        void SetListenerPos(VERTEX pos);
        void SetListenerVel(VERTEX vel);
        void SetListenerOrientation(VERTEX at, VERTEX up);

        void SetMasterVolume(float newvol) {master_volume = newvol; if (master_volume < 0) master_volume = 0; if (master_volume > 1) master_volume = 1;}
        float GetMasterVolume() {return master_volume;}

        void UpdateSettings() { float sound_vol; settings.Get( "sound.volume", sound_vol ); SetMasterVolume( sound_vol ); }

        ALuint NewSource(string buffername);

        void PlaySource(int idx);
        void SetPitch(int sid, float pitch);
        void SetGain(int sid, float gain);
        void SetPos(int sid, VERTEX pos);
        void SetVel(int sid, VERTEX vel);

        void MuteAll();
        void UnMuteAll();
        //ALuint GetSource(string buffername);
        
        void Update() {}
        void StopSource(int sid);

        void DisableAllSound();
        void EnableAllSound();
                
        void SetPosVel(int sid, VERTEX coord, VERTEX tvel);
        void SetListener(VERTEX campos, VERTEX camvel, VERTEX at, VERTEX up);*/
};

#define _SOUND_H
#endif

---