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