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Fix update_position being called when neither CPR changed 

When we have ADS-B CPRs and get for example a MLAT synthetic CPR, don't
call updatePosition as this messes up the position state.
This commit is contained in:
Matthias Wirth 2019-10-18 21:02:12 +02:00
parent 089684e20f
commit aa2b205481
1 changed files with 6 additions and 2 deletions
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8
track.c
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@ -898,6 +898,8 @@ static int altitude_to_feet(int raw, altitude_unit_t unit)
struct aircraft *trackUpdateFromMessage(struct modesMessage *mm)
{
struct aircraft *a;
unsigned int cpr_new = 0;
if (mm->msgtype == 32) {
// Mode A/C, just count it (we ignore SPI)
@ -1123,6 +1125,7 @@ struct aircraft *trackUpdateFromMessage(struct modesMessage *mm)
a->cpr_even_lat = mm->cpr_lat;
a->cpr_even_lon = mm->cpr_lon;
compute_nic_rc_from_message(mm, a, &a->cpr_even_nic, &a->cpr_even_rc);
cpr_new = 1;
}
// CPR, odd
@ -1131,6 +1134,7 @@ struct aircraft *trackUpdateFromMessage(struct modesMessage *mm)
a->cpr_odd_lat = mm->cpr_lat;
a->cpr_odd_lon = mm->cpr_lon;
compute_nic_rc_from_message(mm, a, &a->cpr_odd_nic, &a->cpr_odd_rc);
cpr_new = 1;
}
if (mm->accuracy.sda_valid && accept_data(&a->sda_valid, mm->source)) {
@ -1182,8 +1186,8 @@ struct aircraft *trackUpdateFromMessage(struct modesMessage *mm)
combine_validity(&a->altitude_geom_valid, &a->altitude_baro_valid, &a->geom_delta_valid);
}
// If we've got a new cprlat or cprlon
if (mm->cpr_valid) {
// If we've got a new cpr_odd or cpr_even
if (cpr_new) {
updatePosition(a, mm);
}