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temporal: fixes for TempoMap::move_meter()

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This commit is contained in:
Paul Davis 2022-05-30 21:14:33 -06:00
parent 60db5a827f
commit 192b2fd839
2 changed files with 26 additions and 9 deletions
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33
libs/temporal/tempo.cc
View File

@ -1251,7 +1251,7 @@ TempoMap::reset_starting_at (superclock_t sc)
}
bool
TempoMap::move_meter (MeterPoint const & mp, timepos_t const & when, bool push)
TempoMap::move_meter (MeterPoint const & mp, timepos_t const & when, bool earlier, bool push)
{
assert (!_tempos.empty());
assert (!_meters.empty());
@ -1268,10 +1268,10 @@ TempoMap::move_meter (MeterPoint const & mp, timepos_t const & when, bool push)
beats = when.beats ();
if (beats > mp.beats ()) {
round_up = true;
} else {
if (earlier) {
round_up = false;
} else {
round_up = true;
}
/* Do not allow moving a meter marker to the same position as
@ -1284,21 +1284,38 @@ TempoMap::move_meter (MeterPoint const & mp, timepos_t const & when, bool push)
/* meter changes must be on bar */
for (t = _tempos.begin(), prev_t = _tempos.end(); t != _tempos.end() && t->beats() < beats; ++t) { prev_t = t; }
for (m = _meters.begin(), prev_m = _meters.end(); m != _meters.end() && m->beats() < beats && *m != mp; ++m) { prev_m = m; }
assert (prev_m != _meters.end());
if (prev_t == _tempos.end()) { prev_t = _tempos.begin(); }
if (prev_m == _meters.end()) {
return false;
}
if (prev_t == _tempos.end()) {
prev_t = _tempos.begin();
}
TempoMetric metric (*prev_t, *prev_m);
bbt = metric.bbt_at (beats);
if (round_up) {
bbt = metric.meter().round_up_to_bar (bbt);
} else {
bbt = metric.meter().round_down_to_bar (bbt);
}
for (t = _tempos.begin(), prev_t = _tempos.end(); t != _tempos.end() && t->bbt() < bbt; ++t) { prev_t = t; }
for (m = _meters.begin(), prev_m = _meters.end(); m != _meters.end() && m->bbt() < bbt && *m != mp; ++m) { prev_m = m; }
assert (prev_m != _meters.end());
if (prev_t == _tempos.end()) { prev_t = _tempos.begin(); }
if (prev_m == _meters.end()) {
return false;
}
if (prev_t == _tempos.end()) {
prev_t = _tempos.begin();
}
metric = TempoMetric (*prev_t, *prev_m);
beats = metric.quarters_at (bbt);
for (m = _meters.begin(), prev_m = _meters.end(); m != _meters.end(); ++m) {
if (&*m != &mp) {
if (m->beats() == beats) {

2
libs/temporal/temporal/tempo.h
View File

@ -719,7 +719,7 @@ class /*LIBTEMPORAL_API*/ TempoMap : public PBD::StatefulDestructible
/* these are a convenience method that just wrap some odd semantics */
LIBTEMPORAL_API bool move_tempo (TempoPoint const & point, timepos_t const & destination, bool push = false);
LIBTEMPORAL_API bool move_meter (MeterPoint const & point, timepos_t const & destination, bool push = false);
LIBTEMPORAL_API bool move_meter (MeterPoint const & point, timepos_t const & destination, bool earlier, bool push = false);
LIBTEMPORAL_API int set_state (XMLNode const&, int version);