void
fsg_model_trans_add(fsg_model_t * fsg,
int32 from, int32 to, int32 logp, int32 wid)
{
fsg_link_t *link;
glist_t gl;
gnode_t *gn;
if (fsg->trans[from].trans == NULL)
fsg->trans[from].trans = hash_table_new(5, HASH_CASE_YES);
/* Check for duplicate link (i.e., link already exists with label=wid) */
for (gn = gl = fsg_model_trans(fsg, from, to); gn; gn = gnode_next(gn)) {
link = (fsg_link_t *) gnode_ptr(gn);
if (link->wid == wid) {
if (link->logs2prob < logp)
link->logs2prob = logp;
return;
}
}
/* Create transition object */
link = listelem_malloc(fsg->link_alloc);
link->from_state = from;
link->to_state = to;
link->logs2prob = logp;
link->wid = wid;
/* Add it to the list of transitions and update the hash table */
gl = glist_add_ptr(gl, (void *) link);
hash_table_replace_bkey(fsg->trans[from].trans,
(char const *) &link->to_state,
sizeof(link->to_state), gl);
}
static fsg_pnode_t *
fsg_psubtree_init(fsg_lextree_t *lextree,
fsg_model_t * fsg, int32 from_state,
fsg_pnode_t ** alloc_head)
{
int32 dst;
gnode_t *gn;
fsg_link_t *fsglink;
fsg_pnode_t *root;
int32 n_ci;
fsg_glist_linklist_t *glist = NULL;
root = NULL;
assert(*alloc_head == NULL);
n_ci = bin_mdef_n_ciphone(lextree->mdef);
if (n_ci > (FSG_PNODE_CTXT_BVSZ * 32)) {
E_FATAL
("#phones > %d; increase FSG_PNODE_CTXT_BVSZ and recompile\n",
FSG_PNODE_CTXT_BVSZ * 32);
}
for (dst = 0; dst < fsg_model_n_state(fsg); dst++) {
/* Add all links from from_state to dst */
for (gn = fsg_model_trans(fsg, from_state, dst); gn;
gn = gnode_next(gn)) {
/* Add word emitted by this transition (fsglink) to lextree */
fsglink = (fsg_link_t *) gnode_ptr(gn);
assert(fsg_link_wid(fsglink) >= 0); /* Cannot be a null trans */
root = psubtree_add_trans(lextree, root, &glist, fsglink,
lextree->lc[from_state],
lextree->rc[dst],
alloc_head);
}
}
fsg_glist_linklist_free(glist);
return root;
}
