/** * @file audioengine_fmod.h * @brief Definition of LLAudioEngine class abstracting the audio * support as a FMOD 3D implementation * * $LicenseInfo:firstyear=2002&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, 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_FMOD_H #define LL_AUDIOENGINE_FMOD_H #include "llaudioengine.h" #include "lllistener_fmod.h" #include "llwindgen.h" #include "fmod.h" class LLAudioStreamManagerFMOD; class LLAudioEngine_FMOD : public LLAudioEngine { public: LLAudioEngine_FMOD(); virtual ~LLAudioEngine_FMOD(); // initialization/startup/shutdown virtual bool init(const S32 num_channels, void *user_data); 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); #if LL_DARWIN typedef S32 MIXBUFFERFORMAT; #else typedef S16 MIXBUFFERFORMAT; #endif 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); protected: static signed char F_CALLBACKAPI callbackMetaData(char* name, char* value, void* userdata); //F32 mMinDistance[MAX_BUFFERS]; //F32 mMaxDistance[MAX_BUFFERS]; bool mInited; // On Windows, userdata is the HWND of the application window. void* mUserData; LLWindGen<MIXBUFFERFORMAT> *mWindGen; FSOUND_DSPUNIT *mWindDSP; }; class LLAudioChannelFMOD : public LLAudioChannel { public: LLAudioChannelFMOD(); virtual ~LLAudioChannelFMOD(); protected: /*virtual*/ void play(); /*virtual*/ void playSynced(LLAudioChannel *channelp); /*virtual*/ void cleanup(); /*virtual*/ bool isPlaying(); /*virtual*/ bool updateBuffer(); /*virtual*/ void update3DPosition(); /*virtual*/ void updateLoop(); protected: int mChannelID; S32 mLastSamplePos; }; class LLAudioBufferFMOD : public LLAudioBuffer { public: LLAudioBufferFMOD(); virtual ~LLAudioBufferFMOD(); /*virtual*/ bool loadWAV(const std::string& filename); /*virtual*/ U32 getLength(); friend class LLAudioChannelFMOD; void set3DMode(bool use3d); protected: FSOUND_SAMPLE *getSample() { return mSamplep; } protected: FSOUND_SAMPLE *mSamplep; }; #endif // LL_AUDIOENGINE_FMOD_H