int set_VTS_PROG(vm_t *vm, int vtsN, int vts_ttn, int pgcn, int pgn) {
int pgcN, pgN, res, title, part = 0;
(vm->state).domain = DVD_DOMAIN_VTSTitle;
if (vtsN != (vm->state).vtsN)
if (!ifoOpenNewVTSI(vm, vm->dvd, vtsN)) /* Also sets (vm->state).vtsN */
return 0;
if ((vts_ttn < 1) || (vts_ttn > vm->vtsi->vts_ptt_srpt->nr_of_srpts)) {
return 0;
}
pgcN = pgcn;
pgN = pgn;
(vm->state).TT_PGCN_REG = pgcN;
(vm->state).TTN_REG = get_TT(vm, vtsN, vts_ttn);
assert( (vm->state.TTN_REG) != 0 );
(vm->state).VTS_TTN_REG = vts_ttn;
(vm->state).vtsN = vtsN; /* Not sure about this one. We can get to it easily from TTN_REG */
/* Any other registers? */
res = set_PGCN(vm, pgcN); /* This clobber's state.pgN (sets it to 1), but we don't want clobbering here. */
(vm->state).pgN = pgN;
vm_get_current_title_part(vm, &title, &part);
(vm->state).PTTN_REG = part;
return res;
}
link_t play_PGC_post(vm_t *vm) {
link_t link_values = { LinkNoLink, 0, 0, 0 };
#ifdef TRACE
fprintf(MSG_OUT, "libdvdnav: play_PGC_post:\n");
#endif
/* eval -> updates the state and returns either
- some kind of jump (Jump(TT/SS/VTS_TTN/CallSS/link C/PG/PGC/PTTN)
- just go to next PGC
(This is what happens if you fall of the end of the post_cmds)
- or an error (are there more cases?) */
if((vm->state).pgc->command_tbl && (vm->state).pgc->command_tbl->nr_of_post &&
vmEval_CMD((vm->state).pgc->command_tbl->post_cmds,
(vm->state).pgc->command_tbl->nr_of_post,
&(vm->state).registers, &link_values)) {
return link_values;
}
#ifdef TRACE
fprintf(MSG_OUT, "libdvdnav: ** Fell of the end of the pgc, continuing in NextPGC\n");
#endif
/* Should end up in the STOP_DOMAIN if next_pgc is 0. */
if(!set_PGCN(vm, (vm->state).pgc->next_pgc_nr)) {
link_values.command = Exit;
return link_values;
}
return play_PGC(vm);
}
int set_FP_PGC(vm_t *vm) {
if (!vm || !vm->vmgi)
return 1;
(vm->state).domain = DVD_DOMAIN_FirstPlay;
if (!vm->vmgi->first_play_pgc) {
return set_PGCN(vm, 1);
}
(vm->state).pgc = vm->vmgi->first_play_pgc;
(vm->state).pgcN = vm->vmgi->vmgi_mat->first_play_pgc;
return 1;
}
int set_MENU(vm_t *vm, int menu) {
assert((vm->state).domain == DVD_DOMAIN_VMGM || (vm->state).domain == DVD_DOMAIN_VTSMenu);
return set_PGCN(vm, get_ID(vm, menu));
}