cFilter.h

// Copyright (c) 2008-2010 Raynaldo (Wildicv) Rivera, Joshua (Dark_Kilauea) Jones
// This file is part of the "cAudio Engine"
// For conditions of distribution and use, see copyright notice in cAudio.h

#ifndef CFILTER_H
#define CFILTER_H

#include "../include/IFilter.h"
#include "../Headers/cMutex.h"
#include "../Headers/cEFXFunctions.h"

#ifdef CAUDIO_EFX_ENABLED

#include <AL/al.h>
#include <AL/alc.h>

namespace cAudio
{
        class cFilter : public IFilter
        {
        public:
                cFilter(cEFXFunctions* oALFunctions);
                ~cFilter();

                virtual const FilterTypes& getType() const;
                virtual void setType(const FilterTypes& type);

                virtual float getVolume() const;
                virtual void setVolume(const float& volume);

                virtual float getLowFrequencyVolume() const;
                virtual void setLowFrequencyVolume(const float& volumeLF);

                virtual float getHighFrequencyVolume() const;
                virtual void setHighFrequencyVolume(const float& volumeHF);

                virtual unsigned int getLastUpdated() const;
                virtual bool isValid() const;

                ALuint getOpenALFilter() const;

        protected:
                cEFXFunctions* EFX;

                //Mutex for thread syncronization
                cAudioMutex Mutex;

                FilterTypes Type;
                float Volume;
                float LowFreqVolume;
                float HighFreqVolume;
                unsigned int LastUpdated;

                bool Valid;

                ALuint Filter;

                bool UpdateFilter();
                bool CheckError();
                ALenum ConvertFilterEnum(FilterTypes type);
        };
};

#endif

#endif