//////////////////////////// constructor
CaveScene::CaveScene(VMDApp *vmdapp) : app(vmdapp) {
#if defined(CAVEUSERWLOCK)
msgInfo << "Creating R/W lock for shared mem access sync.\n" << sendmsg;
draw_rwlock = CAVENewLock(); // allocate a new CAVE lock
CAVESetWriteLock(draw_rwlock); // start out locked for writing
#else
msgInfo << "Creating draw barrier for " << CAVEConfig->ActiveWalls
<< " active CAVE walls and master process.\n" << sendmsg;
// setup the drawing barrier used to control slave rendering processes
draw_barrier =(vmd_barrier_t *) malloc_from_CAVE_memory(sizeof(vmd_barrier_t));
if (draw_barrier == NULL) {
msgErr << "CANNOT ALLOCATE SHARED MEMORY FOR CaveScene CLASS !!!"
<< sendmsg;
}
memset(draw_barrier, 0, sizeof(vmd_barrier_t));
if (getenv("VMDCAVEDRAWPROCS") != NULL) {
vmd_thread_barrier_init_proc_shared(draw_barrier, atoi(getenv("VMDCAVEDRAWPROCS")) + 1);
} else {
vmd_thread_barrier_init_proc_shared(draw_barrier, CAVEConfig->ActiveWalls + 1);
}
#endif
}
void *vrlib_lock_create (void)
{
return (void *) CAVENewLock ();
}
