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Set JACK transport bar_start_tick field.

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This commit is contained in:
Stefan Westerfeld 2020-07-20 14:59:28 +02:00 committed by Robin Gareus
parent d21337a3a4
commit ad8eb4d05b
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 3 additions and 2 deletions
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5
libs/backends/jack/jack_session.cc
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@ -134,13 +134,14 @@ JACKSession::timebase_callback (jack_transport_state_t /*state*/,
pos->beat = bbt.beats;
pos->tick = bbt.ticks;
// XXX still need to set bar_start_tick
pos->beats_per_bar = metric.meter().divisions_per_bar();
pos->beat_type = metric.meter().note_divisor();
pos->ticks_per_beat = Timecode::BBT_Time::ticks_per_beat;
pos->beats_per_minute = metric.tempo().note_types_per_minute();
double current_tick = tempo_map.quarter_note_at_bbt_rt (bbt) / 4 * pos->beat_type * pos->ticks_per_beat;
pos->bar_start_tick = current_tick - ((pos->beat - 1) * pos->ticks_per_beat + pos->tick);
pos->valid = jack_position_bits_t (pos->valid | JackPositionBBT);
} catch (...) {