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510 lines
13 KiB
C
510 lines
13 KiB
C
/**
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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 "alMain.h"
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#include "AL/alc.h"
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#include "alError.h"
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#include "alListener.h"
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#include "alSource.h"
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AL_API ALvoid AL_APIENTRY alListenerf(ALenum param, ALfloat value)
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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WriteLock(&context->PropLock);
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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 && isfinite(value)))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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context->Listener->Gain = value;
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break;
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case AL_METERS_PER_UNIT:
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if(!(value >= 0.0f && isfinite(value)))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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context->Listener->MetersPerUnit = value;
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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if(!ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire))
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UpdateListenerProps(context);
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done:
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WriteUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alListener3f(ALenum param, ALfloat value1, ALfloat value2, ALfloat value3)
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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WriteLock(&context->PropLock);
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switch(param)
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{
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case AL_POSITION:
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if(!(isfinite(value1) && isfinite(value2) && isfinite(value3)))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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context->Listener->Position[0] = value1;
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context->Listener->Position[1] = value2;
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context->Listener->Position[2] = value3;
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break;
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case AL_VELOCITY:
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if(!(isfinite(value1) && isfinite(value2) && isfinite(value3)))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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context->Listener->Velocity[0] = value1;
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context->Listener->Velocity[1] = value2;
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context->Listener->Velocity[2] = value3;
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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if(!ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire))
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UpdateListenerProps(context);
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done:
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WriteUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alListenerfv(ALenum param, const ALfloat *values)
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{
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ALCcontext *context;
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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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context = GetContextRef();
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if(!context) return;
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WriteLock(&context->PropLock);
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if(!(values))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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switch(param)
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{
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case AL_ORIENTATION:
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if(!(isfinite(values[0]) && isfinite(values[1]) && isfinite(values[2]) &&
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isfinite(values[3]) && isfinite(values[4]) && isfinite(values[5])))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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/* AT then UP */
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context->Listener->Forward[0] = values[0];
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context->Listener->Forward[1] = values[1];
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context->Listener->Forward[2] = values[2];
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context->Listener->Up[0] = values[3];
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context->Listener->Up[1] = values[4];
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context->Listener->Up[2] = values[5];
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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if(!ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire))
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UpdateListenerProps(context);
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done:
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WriteUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alListeneri(ALenum param, ALint UNUSED(value))
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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WriteLock(&context->PropLock);
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switch(param)
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{
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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if(!ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire))
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UpdateListenerProps(context);
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done:
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WriteUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API void AL_APIENTRY alListener3i(ALenum param, ALint value1, ALint value2, ALint value3)
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{
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ALCcontext *context;
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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, (ALfloat)value1, (ALfloat)value2, (ALfloat)value3);
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return;
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}
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context = GetContextRef();
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if(!context) return;
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WriteLock(&context->PropLock);
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switch(param)
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{
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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if(!ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire))
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UpdateListenerProps(context);
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done:
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WriteUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API void AL_APIENTRY alListeneriv(ALenum param, const ALint *values)
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{
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ALCcontext *context;
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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, (ALfloat)values[0], (ALfloat)values[1], (ALfloat)values[2]);
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return;
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case AL_ORIENTATION:
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fvals[0] = (ALfloat)values[0];
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fvals[1] = (ALfloat)values[1];
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fvals[2] = (ALfloat)values[2];
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fvals[3] = (ALfloat)values[3];
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fvals[4] = (ALfloat)values[4];
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fvals[5] = (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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context = GetContextRef();
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if(!context) return;
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WriteLock(&context->PropLock);
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if(!(values))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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switch(param)
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{
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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if(!ATOMIC_LOAD(&context->DeferUpdates, almemory_order_acquire))
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UpdateListenerProps(context);
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done:
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WriteUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alGetListenerf(ALenum param, ALfloat *value)
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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ReadLock(&context->PropLock);
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if(!(value))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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switch(param)
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{
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case AL_GAIN:
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*value = context->Listener->Gain;
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break;
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case AL_METERS_PER_UNIT:
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*value = context->Listener->MetersPerUnit;
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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done:
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ReadUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alGetListener3f(ALenum param, ALfloat *value1, ALfloat *value2, ALfloat *value3)
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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ReadLock(&context->PropLock);
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if(!(value1 && value2 && value3))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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switch(param)
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{
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case AL_POSITION:
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*value1 = context->Listener->Position[0];
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*value2 = context->Listener->Position[1];
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*value3 = context->Listener->Position[2];
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break;
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case AL_VELOCITY:
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*value1 = context->Listener->Velocity[0];
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*value2 = context->Listener->Velocity[1];
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*value3 = context->Listener->Velocity[2];
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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done:
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ReadUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alGetListenerfv(ALenum param, ALfloat *values)
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{
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ALCcontext *context;
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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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context = GetContextRef();
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if(!context) return;
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ReadLock(&context->PropLock);
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if(!(values))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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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] = context->Listener->Forward[0];
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values[1] = context->Listener->Forward[1];
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values[2] = context->Listener->Forward[2];
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values[3] = context->Listener->Up[0];
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values[4] = context->Listener->Up[1];
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values[5] = context->Listener->Up[2];
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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done:
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ReadUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API ALvoid AL_APIENTRY alGetListeneri(ALenum param, ALint *value)
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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ReadLock(&context->PropLock);
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if(!(value))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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switch(param)
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{
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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done:
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ReadUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API void AL_APIENTRY alGetListener3i(ALenum param, ALint *value1, ALint *value2, ALint *value3)
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{
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ALCcontext *context;
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context = GetContextRef();
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if(!context) return;
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ReadLock(&context->PropLock);
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if(!(value1 && value2 && value3))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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switch (param)
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{
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case AL_POSITION:
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*value1 = (ALint)context->Listener->Position[0];
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*value2 = (ALint)context->Listener->Position[1];
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*value3 = (ALint)context->Listener->Position[2];
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break;
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case AL_VELOCITY:
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*value1 = (ALint)context->Listener->Velocity[0];
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*value2 = (ALint)context->Listener->Velocity[1];
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*value3 = (ALint)context->Listener->Velocity[2];
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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done:
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ReadUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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AL_API void AL_APIENTRY alGetListeneriv(ALenum param, ALint* values)
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{
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ALCcontext *context;
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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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context = GetContextRef();
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if(!context) return;
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ReadLock(&context->PropLock);
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if(!(values))
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SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
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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] = (ALint)context->Listener->Forward[0];
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values[1] = (ALint)context->Listener->Forward[1];
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values[2] = (ALint)context->Listener->Forward[2];
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values[3] = (ALint)context->Listener->Up[0];
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values[4] = (ALint)context->Listener->Up[1];
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values[5] = (ALint)context->Listener->Up[2];
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break;
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default:
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SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
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}
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done:
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ReadUnlock(&context->PropLock);
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ALCcontext_DecRef(context);
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}
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void UpdateListenerProps(ALCcontext *context)
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{
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ALlistener *listener = context->Listener;
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struct ALlistenerProps *props;
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/* Get an unused proprty container, or allocate a new one as needed. */
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props = ATOMIC_LOAD(&listener->FreeList, almemory_order_acquire);
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if(!props)
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props = al_calloc(16, sizeof(*props));
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else
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{
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struct ALlistenerProps *next;
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do {
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next = ATOMIC_LOAD(&props->next, almemory_order_relaxed);
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} while(ATOMIC_COMPARE_EXCHANGE_PTR_WEAK(&listener->FreeList, &props, next,
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almemory_order_seq_cst, almemory_order_acquire) == 0);
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}
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/* Copy in current property values. */
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props->Position[0] = listener->Position[0];
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props->Position[1] = listener->Position[1];
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props->Position[2] = listener->Position[2];
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props->Velocity[0] = listener->Velocity[0];
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props->Velocity[1] = listener->Velocity[1];
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props->Velocity[2] = listener->Velocity[2];
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props->Forward[0] = listener->Forward[0];
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props->Forward[1] = listener->Forward[1];
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props->Forward[2] = listener->Forward[2];
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props->Up[0] = listener->Up[0];
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props->Up[1] = listener->Up[1];
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props->Up[2] = listener->Up[2];
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props->Gain = listener->Gain;
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props->MetersPerUnit = listener->MetersPerUnit;
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props->DopplerFactor = context->DopplerFactor;
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props->DopplerVelocity = context->DopplerVelocity;
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props->SpeedOfSound = context->SpeedOfSound;
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props->SourceDistanceModel = context->SourceDistanceModel;
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props->DistanceModel = context->DistanceModel;;
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/* Set the new container for updating internal parameters. */
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props = ATOMIC_EXCHANGE_PTR(&listener->Update, props, almemory_order_acq_rel);
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if(props)
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{
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/* If there was an unused update container, put it back in the
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* freelist.
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*/
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ATOMIC_REPLACE_HEAD(struct ALlistenerProps*, &listener->FreeList, props);
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}
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}
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