658 lines
14 KiB
C
658 lines
14 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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 <stdlib.h>
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#include "alMain.h"
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#include "AL/alc.h"
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#include "AL/alext.h"
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#include "alError.h"
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#include "alSource.h"
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#include "alAuxEffectSlot.h"
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#include "alState.h"
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static const ALchar alVendor[] = "OpenAL Community";
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static const ALchar alVersion[] = "1.1 ALSOFT "ALSOFT_VERSION;
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static const ALchar alRenderer[] = "OpenAL Soft";
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// Error Messages
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static const ALchar alNoError[] = "No Error";
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static const ALchar alErrInvalidName[] = "Invalid Name";
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static const ALchar alErrInvalidEnum[] = "Invalid Enum";
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static const ALchar alErrInvalidValue[] = "Invalid Value";
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static const ALchar alErrInvalidOp[] = "Invalid Operation";
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static const ALchar alErrOutOfMemory[] = "Out of Memory";
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AL_API ALvoid AL_APIENTRY alEnable(ALenum capability)
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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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switch(capability)
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{
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case AL_SOURCE_DISTANCE_MODEL:
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Context->SourceDistanceModel = AL_TRUE;
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Context->UpdateSources = AL_TRUE;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alDisable(ALenum capability)
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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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switch(capability)
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{
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case AL_SOURCE_DISTANCE_MODEL:
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Context->SourceDistanceModel = AL_FALSE;
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Context->UpdateSources = AL_TRUE;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALboolean AL_APIENTRY alIsEnabled(ALenum capability)
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{
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ALCcontext *Context;
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ALboolean value=AL_FALSE;
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Context = GetContextRef();
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if(!Context) return AL_FALSE;
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switch(capability)
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{
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case AL_SOURCE_DISTANCE_MODEL:
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value = Context->SourceDistanceModel;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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return value;
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}
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AL_API ALboolean AL_APIENTRY alGetBoolean(ALenum pname)
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{
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ALCcontext *Context;
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ALboolean value=AL_FALSE;
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Context = GetContextRef();
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if(!Context) return AL_FALSE;
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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if(Context->DopplerFactor != 0.0f)
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value = AL_TRUE;
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break;
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case AL_DOPPLER_VELOCITY:
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if(Context->DopplerVelocity != 0.0f)
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value = AL_TRUE;
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break;
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case AL_DISTANCE_MODEL:
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if(Context->DistanceModel == AL_INVERSE_DISTANCE_CLAMPED)
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value = AL_TRUE;
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break;
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case AL_SPEED_OF_SOUND:
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if(Context->flSpeedOfSound != 0.0f)
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value = AL_TRUE;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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value = Context->DeferUpdates;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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return value;
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}
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AL_API ALdouble AL_APIENTRY alGetDouble(ALenum pname)
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{
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ALCcontext *Context;
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ALdouble value = 0.0;
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Context = GetContextRef();
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if(!Context) return 0.0;
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = (double)Context->DopplerFactor;
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break;
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case AL_DOPPLER_VELOCITY:
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value = (double)Context->DopplerVelocity;
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break;
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case AL_DISTANCE_MODEL:
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value = (double)Context->DistanceModel;
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break;
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case AL_SPEED_OF_SOUND:
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value = (double)Context->flSpeedOfSound;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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value = (ALdouble)Context->DeferUpdates;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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return value;
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}
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AL_API ALfloat AL_APIENTRY alGetFloat(ALenum pname)
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{
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ALCcontext *Context;
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ALfloat value = 0.0f;
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Context = GetContextRef();
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if(!Context) return 0.0f;
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = Context->DopplerFactor;
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break;
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case AL_DOPPLER_VELOCITY:
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value = Context->DopplerVelocity;
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break;
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case AL_DISTANCE_MODEL:
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value = (float)Context->DistanceModel;
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break;
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case AL_SPEED_OF_SOUND:
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value = Context->flSpeedOfSound;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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value = (ALfloat)Context->DeferUpdates;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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return value;
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}
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AL_API ALint AL_APIENTRY alGetInteger(ALenum pname)
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{
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ALCcontext *Context;
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ALint value = 0;
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Context = GetContextRef();
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if(!Context) return 0;
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = (ALint)Context->DopplerFactor;
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break;
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case AL_DOPPLER_VELOCITY:
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value = (ALint)Context->DopplerVelocity;
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break;
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case AL_DISTANCE_MODEL:
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value = (ALint)Context->DistanceModel;
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break;
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case AL_SPEED_OF_SOUND:
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value = (ALint)Context->flSpeedOfSound;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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value = (ALint)Context->DeferUpdates;
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break;
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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return value;
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}
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AL_API ALvoid AL_APIENTRY alGetBooleanv(ALenum pname,ALboolean *data)
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{
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ALCcontext *Context;
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if(data)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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*data = alGetBoolean(pname);
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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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if(data)
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{
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switch(pname)
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{
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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}
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else
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{
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// data is a NULL pointer
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alSetError(Context, AL_INVALID_VALUE);
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alGetDoublev(ALenum pname,ALdouble *data)
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{
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ALCcontext *Context;
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if(data)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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*data = alGetDouble(pname);
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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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if(data)
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{
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switch(pname)
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{
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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}
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else
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{
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// data is a NULL pointer
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alSetError(Context, AL_INVALID_VALUE);
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alGetFloatv(ALenum pname,ALfloat *data)
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{
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ALCcontext *Context;
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if(data)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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*data = alGetFloat(pname);
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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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if(data)
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{
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switch(pname)
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{
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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}
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else
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{
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// data is a NULL pointer
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alSetError(Context, AL_INVALID_VALUE);
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alGetIntegerv(ALenum pname,ALint *data)
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{
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ALCcontext *Context;
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if(data)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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*data = alGetInteger(pname);
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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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if(data)
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{
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switch(pname)
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{
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default:
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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}
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else
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{
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// data is a NULL pointer
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alSetError(Context, AL_INVALID_VALUE);
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}
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ALCcontext_DecRef(Context);
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}
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AL_API const ALchar* AL_APIENTRY alGetString(ALenum pname)
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{
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const ALchar *value;
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ALCcontext *Context;
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Context = GetContextRef();
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if(!Context) return NULL;
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switch(pname)
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{
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case AL_VENDOR:
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value=alVendor;
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break;
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case AL_VERSION:
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value=alVersion;
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break;
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case AL_RENDERER:
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value=alRenderer;
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break;
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case AL_EXTENSIONS:
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value=Context->ExtensionList;
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break;
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case AL_NO_ERROR:
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value=alNoError;
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break;
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case AL_INVALID_NAME:
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value=alErrInvalidName;
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break;
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case AL_INVALID_ENUM:
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value=alErrInvalidEnum;
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break;
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case AL_INVALID_VALUE:
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value=alErrInvalidValue;
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break;
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case AL_INVALID_OPERATION:
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value=alErrInvalidOp;
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break;
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case AL_OUT_OF_MEMORY:
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value=alErrOutOfMemory;
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break;
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default:
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value=NULL;
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alSetError(Context, AL_INVALID_ENUM);
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break;
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}
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ALCcontext_DecRef(Context);
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return value;
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}
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AL_API ALvoid AL_APIENTRY alDopplerFactor(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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if(value >= 0.0f && isfinite(value))
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{
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Context->DopplerFactor = value;
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Context->UpdateSources = AL_TRUE;
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}
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else
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alSetError(Context, AL_INVALID_VALUE);
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alDopplerVelocity(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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if(value > 0.0f && isfinite(value))
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{
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Context->DopplerVelocity=value;
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Context->UpdateSources = AL_TRUE;
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}
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else
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alSetError(Context, AL_INVALID_VALUE);
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alSpeedOfSound(ALfloat flSpeedOfSound)
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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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if(flSpeedOfSound > 0.0f && isfinite(flSpeedOfSound))
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{
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Context->flSpeedOfSound = flSpeedOfSound;
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Context->UpdateSources = AL_TRUE;
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}
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else
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alSetError(Context, AL_INVALID_VALUE);
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alDistanceModel(ALenum 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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switch(value)
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{
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case AL_NONE:
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case AL_INVERSE_DISTANCE:
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case AL_INVERSE_DISTANCE_CLAMPED:
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case AL_LINEAR_DISTANCE:
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case AL_LINEAR_DISTANCE_CLAMPED:
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case AL_EXPONENT_DISTANCE:
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case AL_EXPONENT_DISTANCE_CLAMPED:
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Context->DistanceModel = value;
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Context->UpdateSources = AL_TRUE;
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break;
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default:
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alSetError(Context, AL_INVALID_VALUE);
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break;
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alDeferUpdatesSOFT(void)
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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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if(!Context->DeferUpdates)
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{
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ALboolean UpdateSources;
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ALsource **src, **src_end;
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ALeffectslot **slot, **slot_end;
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LockContext(Context);
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Context->DeferUpdates = AL_TRUE;
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/* Make sure all pending updates are performed */
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UpdateSources = ExchangeInt(&Context->UpdateSources, AL_FALSE);
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src = Context->ActiveSources;
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src_end = src + Context->ActiveSourceCount;
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while(src != src_end)
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{
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if((*src)->state != AL_PLAYING)
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{
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Context->ActiveSourceCount--;
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*src = *(--src_end);
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continue;
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}
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if(ExchangeInt(&(*src)->NeedsUpdate, AL_FALSE) || UpdateSources)
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ALsource_Update(*src, Context);
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src++;
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}
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slot = Context->ActiveEffectSlots;
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slot_end = slot + Context->ActiveEffectSlotCount;
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while(slot != slot_end)
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{
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if(ExchangeInt(&(*slot)->NeedsUpdate, AL_FALSE))
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ALEffect_Update((*slot)->EffectState, Context, *slot);
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slot++;
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}
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UnlockContext(Context);
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}
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ALCcontext_DecRef(Context);
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}
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AL_API ALvoid AL_APIENTRY alProcessUpdatesSOFT(void)
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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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|
|
if(ExchangeInt(&Context->DeferUpdates, AL_FALSE))
|
|
{
|
|
ALsizei pos;
|
|
|
|
LockContext(Context);
|
|
LockUIntMapRead(&Context->SourceMap);
|
|
for(pos = 0;pos < Context->SourceMap.size;pos++)
|
|
{
|
|
ALsource *Source = Context->SourceMap.array[pos].value;
|
|
ALenum new_state;
|
|
|
|
if(Source->lOffset != -1)
|
|
ApplyOffset(Source);
|
|
|
|
new_state = ExchangeInt(&Source->new_state, AL_NONE);
|
|
if(new_state)
|
|
SetSourceState(Source, Context, new_state);
|
|
}
|
|
UnlockUIntMapRead(&Context->SourceMap);
|
|
UnlockContext(Context);
|
|
}
|
|
|
|
ALCcontext_DecRef(Context);
|
|
}
|