diff options
Diffstat (limited to 'indra/llaudio/lllistener_fmodstudio.cpp')
-rw-r--r-- | indra/llaudio/lllistener_fmodstudio.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/indra/llaudio/lllistener_fmodstudio.cpp b/indra/llaudio/lllistener_fmodstudio.cpp new file mode 100644 index 0000000000..abd5e345b5 --- /dev/null +++ b/indra/llaudio/lllistener_fmodstudio.cpp @@ -0,0 +1,136 @@ +/** + * @file listener_fmodstudio.cpp + * @brief Implementation of LISTENER 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 + * $/LicenseInfo$ + */ + +#include "linden_common.h" +#include "llaudioengine.h" +#include "lllistener_fmodstudio.h" +#include "fmodstudio/fmod.hpp" + +//----------------------------------------------------------------------- +// constructor +//----------------------------------------------------------------------- +LLListener_FMODSTUDIO::LLListener_FMODSTUDIO(FMOD::System *system) +{ + mSystem = system; + init(); +} + +//----------------------------------------------------------------------- +LLListener_FMODSTUDIO::~LLListener_FMODSTUDIO() +{ +} + +//----------------------------------------------------------------------- +void LLListener_FMODSTUDIO::init(void) +{ + // do inherited + LLListener::init(); + mDopplerFactor = 1.0f; + mRolloffFactor = 1.0f; +} + +//----------------------------------------------------------------------- +void LLListener_FMODSTUDIO::translate(LLVector3 offset) +{ + LLListener::translate(offset); + + mSystem->set3DListenerAttributes(0, (FMOD_VECTOR*)mPosition.mV, NULL, (FMOD_VECTOR*)mListenAt.mV, (FMOD_VECTOR*)mListenUp.mV); +} + +//----------------------------------------------------------------------- +void LLListener_FMODSTUDIO::setPosition(LLVector3 pos) +{ + LLListener::setPosition(pos); + + mSystem->set3DListenerAttributes(0, (FMOD_VECTOR*)mPosition.mV, NULL, (FMOD_VECTOR*)mListenAt.mV, (FMOD_VECTOR*)mListenUp.mV); +} + +//----------------------------------------------------------------------- +void LLListener_FMODSTUDIO::setVelocity(LLVector3 vel) +{ + LLListener::setVelocity(vel); + + mSystem->set3DListenerAttributes(0, NULL, (FMOD_VECTOR*)mVelocity.mV, (FMOD_VECTOR*)mListenAt.mV, (FMOD_VECTOR*)mListenUp.mV); +} + +//----------------------------------------------------------------------- +void LLListener_FMODSTUDIO::orient(LLVector3 up, LLVector3 at) +{ + LLListener::orient(up, at); + + // at = -at; by default Fmod studio is 'left-handed' but we are providing + // flag FMOD_INIT_3D_RIGHTHANDED so no correction are needed + + mSystem->set3DListenerAttributes(0, NULL, NULL, (FMOD_VECTOR*)at.mV, (FMOD_VECTOR*)up.mV); +} + +//----------------------------------------------------------------------- +void LLListener_FMODSTUDIO::commitDeferredChanges() +{ + if (!mSystem) + { + return; + } + + mSystem->update(); +} + + +void LLListener_FMODSTUDIO::setRolloffFactor(F32 factor) +{ + //An internal FMOD optimization skips 3D updates if there have not been changes to the 3D sound environment. + // (this was true for FMODex, looks to be still true for FMOD STUDIO, but needs a recheck) + //Sadly, a change in rolloff is not accounted for, thus we must touch the listener properties as well. + //In short: Changing the position ticks a dirtyflag inside fmod, which makes it not skip 3D processing next update call. + if (mRolloffFactor != factor) + { + LLVector3 pos = mPosition - LLVector3(0.f, 0.f, .1f); + mSystem->set3DListenerAttributes(0, (FMOD_VECTOR*)pos.mV, NULL, NULL, NULL); + mSystem->set3DListenerAttributes(0, (FMOD_VECTOR*)mPosition.mV, NULL, NULL, NULL); + } + mRolloffFactor = factor; + mSystem->set3DSettings(mDopplerFactor, 1.f, mRolloffFactor); +} + + +F32 LLListener_FMODSTUDIO::getRolloffFactor() +{ + return mRolloffFactor; +} + + +void LLListener_FMODSTUDIO::setDopplerFactor(F32 factor) +{ + mDopplerFactor = factor; + mSystem->set3DSettings(mDopplerFactor, 1.f, mRolloffFactor); +} + + +F32 LLListener_FMODSTUDIO::getDopplerFactor() +{ + return mDopplerFactor; +} |