/* Must be called before domain is changed (set_PGCN()) */
void set_RSMinfo(vm_t *vm, int cellN, int blockN) {
int i;
if(cellN) {
(vm->state).rsm_cellN = cellN;
(vm->state).rsm_blockN = blockN;
} else {
(vm->state).rsm_cellN = (vm->state).cellN;
(vm->state).rsm_blockN = blockN;
}
(vm->state).rsm_vtsN = (vm->state).vtsN;
(vm->state).rsm_pgcN = get_PGCN(vm);
/* assert((vm->state).rsm_pgcN == (vm->state).TT_PGCN_REG); for DVD_DOMAIN_VTSTitle */
for(i = 0; i < 5; i++) {
(vm->state).rsm_regs[i] = (vm->state).registers.SPRM[4 + i];
}
}
link_t play_PGC_PG(vm_t *vm, int pgN) {
link_t link_values;
#ifdef TRACE
fprintf(MSG_OUT, "libdvdnav: play_PGC_PG:");
if((vm->state).domain != DVD_DOMAIN_FirstPlay) {
fprintf(MSG_OUT, " (vm->state).pgcN (%i)\n", get_PGCN(vm));
} else {
fprintf(MSG_OUT, " first_play_pgc\n");
}
#endif
/* This must be set before the pre-commands are executed because they
* might contain a CallSS that will save resume state */
/* FIXME: This may be only a temporary fix for something... */
(vm->state).pgN = pgN;
(vm->state).cellN = 0;
(vm->state).blockN = 0;
/* eval -> updates the state and returns either
- some kind of jump (Jump(TT/SS/VTS_TTN/CallSS/link C/PG/PGC/PTTN)
- just play video i.e first PG
(This is what happens if you fall of the end of the pre_cmds)
- or an error (are there more cases?) */
if((vm->state).pgc->command_tbl && (vm->state).pgc->command_tbl->nr_of_pre) {
if(vmEval_CMD((vm->state).pgc->command_tbl->pre_cmds,
(vm->state).pgc->command_tbl->nr_of_pre,
&(vm->state).registers, &link_values)) {
/* link_values contains the 'jump' return value */
return link_values;
} else {
#ifdef TRACE
fprintf(MSG_OUT, "libdvdnav: PGC pre commands didn't do a Jump, Link or Call\n");
#endif
}
}
return play_PG(vm);
}