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/**
* @file audioengine_fmodstudio.h
* @brief Definition of LLAudioEngine class abstracting the audio
* support as a FMODSTUDIO implementation
*
* $LicenseInfo:firstyear=2020&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2020, Linden Research, Inc.
*
* 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;
* version 2.1 of the License only.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_AUDIOENGINE_FMODSTUDIO_H
#define LL_AUDIOENGINE_FMODSTUDIO_H
#include "llaudioengine.h"
#include "llwindgen.h"
//Stubs
class LLAudioStreamManagerFMODSTUDIO;
namespace FMOD
{
class System;
class Channel;
class ChannelGroup;
class Sound;
class DSP;
}
typedef struct FMOD_DSP_DESCRIPTION FMOD_DSP_DESCRIPTION;
//Interfaces
class LLAudioEngine_FMODSTUDIO : public LLAudioEngine
{
public:
LLAudioEngine_FMODSTUDIO(bool enable_profiler);
virtual ~LLAudioEngine_FMODSTUDIO();
// initialization/startup/shutdown
virtual bool init(const S32 num_channels, void *user_data, const std::string &app_title);
virtual std::string getDriverName(bool verbose);
virtual void allocateListener();
virtual void shutdown();
/*virtual*/ bool initWind();
/*virtual*/ void cleanupWind();
/*virtual*/void updateWind(LLVector3 direction, F32 camera_height_above_water);
typedef F32 MIXBUFFERFORMAT;
FMOD::System *getSystem() const {return mSystem;}
protected:
/*virtual*/ LLAudioBuffer *createBuffer(); // Get a free buffer, or flush an existing one if you have to.
/*virtual*/ LLAudioChannel *createChannel(); // Create a new audio channel.
/*virtual*/ void setInternalGain(F32 gain);
bool mInited;
LLWindGen<MIXBUFFERFORMAT> *mWindGen;
FMOD_DSP_DESCRIPTION *mWindDSPDesc;
FMOD::DSP *mWindDSP;
FMOD::System *mSystem;
bool mEnableProfiler;
public:
static FMOD::ChannelGroup *mChannelGroups[LLAudioEngine::AUDIO_TYPE_COUNT];
};
class LLAudioChannelFMODSTUDIO : public LLAudioChannel
{
public:
LLAudioChannelFMODSTUDIO(FMOD::System *audioengine);
virtual ~LLAudioChannelFMODSTUDIO();
protected:
/*virtual*/ void play();
/*virtual*/ void playSynced(LLAudioChannel *channelp);
/*virtual*/ void cleanup();
/*virtual*/ bool isPlaying();
/*virtual*/ bool updateBuffer();
/*virtual*/ void update3DPosition();
/*virtual*/ void updateLoop();
void set3DMode(bool use3d);
protected:
FMOD::System *getSystem() const {return mSystemp;}
FMOD::System *mSystemp;
FMOD::Channel *mChannelp;
S32 mLastSamplePos;
};
class LLAudioBufferFMODSTUDIO : public LLAudioBuffer
{
public:
LLAudioBufferFMODSTUDIO(FMOD::System *audioengine);
virtual ~LLAudioBufferFMODSTUDIO();
/*virtual*/ bool loadWAV(const std::string& filename);
/*virtual*/ U32 getLength();
friend class LLAudioChannelFMODSTUDIO;
protected:
FMOD::System *getSystem() const {return mSystemp;}
FMOD::System *mSystemp;
FMOD::Sound *getSound() const{ return mSoundp; }
FMOD::Sound *mSoundp;
};
#endif // LL_AUDIOENGINE_FMODSTUDIO_H
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