OpenALSoundChannel.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
/*
 * Copyright (C) 2006-2010 - Frictional Games
 *
 * This file is part of HPL1 Engine.
 */
 
#ifndef HPL_OPENAL_SOUND_CHANNEL_H
#define HPL_OPENAL_SOUND_CHANNEL_H
 
#include "audio/audiostream.h"
#include "audio/mixer.h"
#include "common/file.h"
#include "common/str.h"
#include "hpl1/engine/impl/OpenALSoundData.h"
#include "hpl1/engine/sound/SoundChannel.h"
#include "hpl1/engine/sound/SoundData.h"
 
//#include "OALWrapper/OAL_Funcs.h"
 
namespace hpl {
 
class cLowLevelSoundOpenAL;
 
class cOpenALSoundChannel : public iSoundChannel {
    friend class cLowLevelSoundOpenAL;
 
public:
    cOpenALSoundChannel(cOpenALSoundData *soundData, Audio::SeekableAudioStream *audioStream, cSoundManager *apSoundManger, cLowLevelSoundOpenAL *lowLevelSound, int priority);
    ~cOpenALSoundChannel();
 
    void Play();
    void Stop();
 
    void SetPaused(bool abX);
    void SetSpeed(float afSpeed);
    void SetVolume(float afVolume);
    void SetLooping(bool abLoop);
    void SetPan(float afPan);
    void Set3D(bool ab3D);
 
    void SetPriority(int alX);
    int GetPriority();
 
    void SetPositionRelative(bool abRelative);
    void SetPosition(const cVector3f &avPos);
    void SetVelocity(const cVector3f &avVel);
 
    void SetMinDistance(float fMin);
    void SetMaxDistance(float fMax);
 
    bool IsPlaying();
 
    bool IsBufferUnderrun() { return false; }
    double GetElapsedTime() { return g_system->getMixer()->getElapsedTime(_handle).secs(); }
    double GetTotalTime() { return _audioStream->getLength().secs(); }
 
    void SetAffectedByEnv(bool abAffected);
    void SetFiltering(bool abEnabled, int alFlags);
    void SetFilterGain(float afGain);
    void SetFilterGainHF(float afGainHF);
 
private:
    void restart();
 
    Audio::SoundHandle _handle;
    Audio::SeekableAudioStream *_audioStream;
    cLowLevelSoundOpenAL *_lowLevelSound;
    int _priority;
    // int mlDefaultFreq;
 
    // float mfPosition[3];
    // float mfVelocity[3];
};
 
} // namespace hpl
 
#endif // HPL_OPENAL_CHANNEL_H