void laserdisc_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TID_VBI_FETCH:
{
// wait for previous read and decode to finish
process_track_data();
// update current track based on slider speed
update_slider_pos();
// update the state
add_and_clamp_track(player_update(m_metadata[m_fieldnum], m_fieldnum, machine().time()));
// flush any audio before we read more
m_stream->update();
// start reading the track data for the next round
m_fieldnum ^= 1;
read_track_data();
break;
}
}
}
int read_data (databuf_t* db, int pos) {
short msg_type = 0;
pos = race_read_short(db,pos, &msg_type);
switch (msg_type) {
case TRACK_MSG:
return read_track_data(db,pos);
case PROXIMITY_MSG:
return read_proximity_data(db,pos);
default:
printf("received unknown data message of type: %d\n", msg_type);
return 0;
}
}
