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temporal: tempo changes must be on meter-provided grid, not quarter notes

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This commit is contained in:
Paul Davis 2025-01-09 22:29:54 -07:00
parent 0a0848b2d6
commit ca9f41c4b2
1 changed files with 4 additions and 3 deletions
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7
libs/temporal/tempo.cc
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@ -1353,11 +1353,12 @@ TempoMap::set_tempo (Tempo const & t, timepos_t const & time)
/* tempo changes are required to be on-beat */
Beats on_beat = time.beats().round_to_beat();
TempoMetric metric (metric_at (time.beats(), false));
Beats on_beat = time.beats().round_to_multiple (Beats::ticks (metric.meter().ticks_per_grid()));
superclock_t sc;
BBT_Time bbt;
TempoMetric metric (metric_at (on_beat, false));
metric = metric_at (on_beat, false);
bbt = metric.bbt_at (on_beat);
sc = metric.superclock_at (on_beat);
@ -1375,7 +1376,7 @@ TempoMap::set_tempo (Tempo const & t, timepos_t const & time)
/* tempo changes must be on beat */
beats = tm.quarters_at_superclock (sc).round_to_beat ();
beats = tm.quarters_at_superclock (sc).round_to_multiple (Beats::ticks (tm.meter().ticks_per_grid()));
bbt = tm.bbt_at (beats);
/* recompute superclock position of rounded beat */