openal-alsa-creative/src/alc_context.h

63 lines
1.6 KiB
C

/*
* Copyright (C) 2004 Christopher John Purnell
* cjp@lost.org.uk
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ALC_CONTEXT_H_
#define _ALC_CONTEXT_H_
#include <pthread.h>
#include <semaphore.h>
#include <AL/al.h>
#include <AL/alc.h>
#include "alc_speaker.h"
#include "alc_device.h"
#include "al_source.h"
#include "al_listener.h"
typedef struct _AL_context
{
ALCdevice *device;
AL_source **sources;
pthread_t thread;
pthread_mutex_t mutex;
pthread_cond_t cond;
AL_listener listener;
AL_speaker speakers[_ALC_NUM_SPEAKERS];
ALfloat doppler_factor;
ALfloat doppler_velocity;
ALenum distance_model;
ALfloat (*distance_func)(AL_source *, ALfloat);
}
AL_context;
extern AL_context *_alcCurrentContext;
#define _alcLockContext(ctx) pthread_mutex_lock(&ctx->mutex)
#define _alcUnlockContext(ctx) pthread_mutex_unlock(&ctx->mutex)
AL_source *_alFindSource(AL_context *, ALuint);
ALfloat _alDistanceInverse(AL_source *, ALfloat);
#endif