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449 lines
12 KiB
449 lines
12 KiB
/**
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* OpenAL cross platform audio library
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* Copyright (C) 1999-2000 by authors.
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* Or go to http://www.gnu.org/copyleft/lgpl.html
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*/
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#include "config.h"
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#include "listener.h"
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#include <cmath>
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#include <mutex>
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#include "AL/al.h"
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#include "AL/alc.h"
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#include "AL/efx.h"
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#include "alc/context.h"
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#include "almalloc.h"
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#include "atomic.h"
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#include "core/except.h"
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#include "opthelpers.h"
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namespace {
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inline void UpdateProps(ALCcontext *context)
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{
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if(!context->mDeferUpdates)
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{
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UpdateContextProps(context);
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return;
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}
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context->mPropsDirty = true;
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}
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#ifdef ALSOFT_EAX
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inline void CommitAndUpdateProps(ALCcontext *context)
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{
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if(!context->mDeferUpdates)
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{
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if(context->has_eax())
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{
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context->mHoldUpdates.store(true, std::memory_order_release);
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while((context->mUpdateCount.load(std::memory_order_acquire)&1) != 0) {
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/* busy-wait */
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}
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context->eax_commit_and_update_sources();
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}
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UpdateContextProps(context);
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context->mHoldUpdates.store(false, std::memory_order_release);
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return;
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}
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context->mPropsDirty = true;
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}
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#else
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inline void CommitAndUpdateProps(ALCcontext *context)
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{ UpdateProps(context); }
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#endif
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} // namespace
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AL_API void AL_APIENTRY alListenerf(ALenum param, ALfloat value)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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switch(param)
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{
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case AL_GAIN:
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if(!(value >= 0.0f && std::isfinite(value)))
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SETERR_RETURN(context, AL_INVALID_VALUE,, "Listener gain out of range");
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listener.Gain = value;
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UpdateProps(context.get());
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break;
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case AL_METERS_PER_UNIT:
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if(!(value >= AL_MIN_METERS_PER_UNIT && value <= AL_MAX_METERS_PER_UNIT))
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SETERR_RETURN(context, AL_INVALID_VALUE,, "Listener meters per unit out of range");
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listener.mMetersPerUnit = value;
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UpdateProps(context.get());
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener float property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alListener3f(ALenum param, ALfloat value1, ALfloat value2, ALfloat value3)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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switch(param)
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{
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case AL_POSITION:
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if(!(std::isfinite(value1) && std::isfinite(value2) && std::isfinite(value3)))
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SETERR_RETURN(context, AL_INVALID_VALUE,, "Listener position out of range");
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listener.Position[0] = value1;
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listener.Position[1] = value2;
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listener.Position[2] = value3;
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CommitAndUpdateProps(context.get());
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break;
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case AL_VELOCITY:
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if(!(std::isfinite(value1) && std::isfinite(value2) && std::isfinite(value3)))
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SETERR_RETURN(context, AL_INVALID_VALUE,, "Listener velocity out of range");
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listener.Velocity[0] = value1;
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listener.Velocity[1] = value2;
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listener.Velocity[2] = value3;
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CommitAndUpdateProps(context.get());
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener 3-float property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alListenerfv(ALenum param, const ALfloat *values)
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START_API_FUNC
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{
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if(values)
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{
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switch(param)
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{
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case AL_GAIN:
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case AL_METERS_PER_UNIT:
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alListenerf(param, values[0]);
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return;
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case AL_POSITION:
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case AL_VELOCITY:
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alListener3f(param, values[0], values[1], values[2]);
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return;
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}
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}
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!values) SETERR_RETURN(context, AL_INVALID_VALUE,, "NULL pointer");
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switch(param)
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{
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case AL_ORIENTATION:
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if(!(std::isfinite(values[0]) && std::isfinite(values[1]) && std::isfinite(values[2]) &&
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std::isfinite(values[3]) && std::isfinite(values[4]) && std::isfinite(values[5])))
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SETERR_RETURN(context, AL_INVALID_VALUE,, "Listener orientation out of range");
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/* AT then UP */
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listener.OrientAt[0] = values[0];
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listener.OrientAt[1] = values[1];
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listener.OrientAt[2] = values[2];
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listener.OrientUp[0] = values[3];
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listener.OrientUp[1] = values[4];
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listener.OrientUp[2] = values[5];
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CommitAndUpdateProps(context.get());
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener float-vector property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alListeneri(ALenum param, ALint /*value*/)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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std::lock_guard<std::mutex> _{context->mPropLock};
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switch(param)
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{
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener integer property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alListener3i(ALenum param, ALint value1, ALint value2, ALint value3)
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START_API_FUNC
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{
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switch(param)
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{
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case AL_POSITION:
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case AL_VELOCITY:
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alListener3f(param, static_cast<ALfloat>(value1), static_cast<ALfloat>(value2), static_cast<ALfloat>(value3));
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return;
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}
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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std::lock_guard<std::mutex> _{context->mPropLock};
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switch(param)
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{
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener 3-integer property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alListeneriv(ALenum param, const ALint *values)
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START_API_FUNC
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{
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if(values)
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{
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ALfloat fvals[6];
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switch(param)
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{
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case AL_POSITION:
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case AL_VELOCITY:
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alListener3f(param, static_cast<ALfloat>(values[0]), static_cast<ALfloat>(values[1]), static_cast<ALfloat>(values[2]));
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return;
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case AL_ORIENTATION:
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fvals[0] = static_cast<ALfloat>(values[0]);
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fvals[1] = static_cast<ALfloat>(values[1]);
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fvals[2] = static_cast<ALfloat>(values[2]);
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fvals[3] = static_cast<ALfloat>(values[3]);
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fvals[4] = static_cast<ALfloat>(values[4]);
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fvals[5] = static_cast<ALfloat>(values[5]);
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alListenerfv(param, fvals);
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return;
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}
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}
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!values)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener integer-vector property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alGetListenerf(ALenum param, ALfloat *value)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!value)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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case AL_GAIN:
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*value = listener.Gain;
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break;
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case AL_METERS_PER_UNIT:
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*value = listener.mMetersPerUnit;
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener float property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alGetListener3f(ALenum param, ALfloat *value1, ALfloat *value2, ALfloat *value3)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!value1 || !value2 || !value3)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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case AL_POSITION:
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*value1 = listener.Position[0];
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*value2 = listener.Position[1];
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*value3 = listener.Position[2];
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break;
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case AL_VELOCITY:
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*value1 = listener.Velocity[0];
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*value2 = listener.Velocity[1];
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*value3 = listener.Velocity[2];
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener 3-float property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alGetListenerfv(ALenum param, ALfloat *values)
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START_API_FUNC
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{
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switch(param)
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{
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case AL_GAIN:
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case AL_METERS_PER_UNIT:
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alGetListenerf(param, values);
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return;
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case AL_POSITION:
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case AL_VELOCITY:
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alGetListener3f(param, values+0, values+1, values+2);
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return;
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}
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!values)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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case AL_ORIENTATION:
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// AT then UP
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values[0] = listener.OrientAt[0];
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values[1] = listener.OrientAt[1];
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values[2] = listener.OrientAt[2];
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values[3] = listener.OrientUp[0];
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values[4] = listener.OrientUp[1];
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values[5] = listener.OrientUp[2];
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener float-vector property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alGetListeneri(ALenum param, ALint *value)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!value)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener integer property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alGetListener3i(ALenum param, ALint *value1, ALint *value2, ALint *value3)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!value1 || !value2 || !value3)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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case AL_POSITION:
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*value1 = static_cast<ALint>(listener.Position[0]);
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*value2 = static_cast<ALint>(listener.Position[1]);
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*value3 = static_cast<ALint>(listener.Position[2]);
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break;
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case AL_VELOCITY:
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*value1 = static_cast<ALint>(listener.Velocity[0]);
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*value2 = static_cast<ALint>(listener.Velocity[1]);
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*value3 = static_cast<ALint>(listener.Velocity[2]);
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener 3-integer property");
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}
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}
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END_API_FUNC
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AL_API void AL_APIENTRY alGetListeneriv(ALenum param, ALint* values)
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START_API_FUNC
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{
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switch(param)
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{
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case AL_POSITION:
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case AL_VELOCITY:
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alGetListener3i(param, values+0, values+1, values+2);
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return;
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}
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ContextRef context{GetContextRef()};
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if UNLIKELY(!context) return;
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ALlistener &listener = context->mListener;
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std::lock_guard<std::mutex> _{context->mPropLock};
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if(!values)
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context->setError(AL_INVALID_VALUE, "NULL pointer");
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else switch(param)
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{
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case AL_ORIENTATION:
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// AT then UP
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values[0] = static_cast<ALint>(listener.OrientAt[0]);
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values[1] = static_cast<ALint>(listener.OrientAt[1]);
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values[2] = static_cast<ALint>(listener.OrientAt[2]);
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values[3] = static_cast<ALint>(listener.OrientUp[0]);
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values[4] = static_cast<ALint>(listener.OrientUp[1]);
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values[5] = static_cast<ALint>(listener.OrientUp[2]);
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break;
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default:
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context->setError(AL_INVALID_ENUM, "Invalid listener integer-vector property");
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}
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}
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END_API_FUNC
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