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/**
* OpenAL++ - an object oriented toolkit for spatial sound
* Copyright (C) 2002 VRlab, Ume University
*
* OpenAL++ was created using the libraries:
* OpenAL (http://www.openal.org),
* PortAudio (http://www.portaudio.com/), and
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef AUDIOBASE_H_INCLUDED_C41996D8
#define AUDIOBASE_H_INCLUDED_C41996D8
#include "openalpp/export.h"
#include <cstdlib>
extern "C" {
#include <AL/al.h>
#include <AL/alut.h>
#include <AL/alc.h>
}
#include "openalpp/windowsstuff.h"
#include "openalpp/error.h"
#include "openalpp/referenced.h"
#include "openalpp/ref_ptr.h"
/**
* \mainpage
* OpenAL++ is an object oriented API for OpenAL (www.openal.org). It also uses
* PortAudio (www.portaudio.com) for audio capture.
* In addition to the functionality of OpenAL and ALUT (the OpenAL utility
* library).
*
* OpenAL++ has been tested on Windows and Linux.
*
* Every class in OpenAL++ that is available to the user is a descendant of the
* virtual base class AudioBase. This class takes care of initialization and
* shutdown, so there is no need to do it explicitly.
*/
/**
* Namespace for OpenAL++.
*/
namespace openalpp {
/**
* Format for sound data. Mono/Stereo, 8 or 16 bits.
*/
typedef enum SampleFormat {Mono8,Stereo8,Mono16,Stereo16};
/**
* Base class for enviroment, listener and source classes.
* Takes care of initialisation/shutdown of anything necessary (e.g. ALut)
*/
class OPENALPP_API AudioBase : public Referenced{
/**
* Counter for #instances for enviroment, listener and source classes.
* Used to determine when init and shutdown functions should be called
*/
static int instances_;
/**
* Pointer to device.
*/
static ALCdevice *device_;
/**
* Pointer to context.
*/
#ifndef WIN32
static void *context_;
#else
static struct ALCcontext_struct *context_;
#endif
protected:
/**
* Constructor.
* @param frequency is the output frequency, in Hz.
* @param refresh is the refresh rate, in Hz.
* @param is a flag for syncronous context. Values <0 indicates that the
* default should be used.
*/
AudioBase(int frequency=-1,int refresh=-1,int synchronous=-1)
throw (InitError);
/**
* Destructor.
*/
virtual ~AudioBase();
/**
* Flag for whether reverb has been initiated.
* Reverb can be initiated with AudioEnviroment::InitiateReverb()
*/
static bool reverbinitiated_;
/**
* Set reverb scale.
* This pointer will be set by AudioEnviroment::InitiateReverb()
* @param sid is the OpenAL name for the source
* @param param is the reverb scale. Range [0.0,1.0].
*/
static void (*alReverbScale)(ALuint sid, ALfloat param);
/**
* Set reverb delay.
* This pointer will be set by AudioEnviroment::InitiateReverb()
* @param sid is the OpenAL name for the source
* @param param is the reverb delay. Range [0.0,2.0].
*/
static void (*alReverbDelay)(ALuint sid, ALfloat param);
};
}
#endif /* AUDIOBASE_H_INCLUDED_C41996D8 */
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