diff options
Diffstat (limited to 'libs/ardour/session_vst.cc')
| -rw-r--r-- | libs/ardour/session_vst.cc | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/libs/ardour/session_vst.cc b/libs/ardour/session_vst.cc index 21875ece46..34df6bd52e 100644 --- a/libs/ardour/session_vst.cc +++ b/libs/ardour/session_vst.cc @@ -223,9 +223,29 @@ intptr_t Session::vst_callback ( Timecode::BBT_Time bbt; try { - session->tempo_map().bbt_time_rt (now, bbt); - double ppqBar; - double ppqPos = vst_ppq (tm, bbt, ppqBar); + session->tempo_map().bbt_time (now, bbt); + + /* PPQ = pulse per quarter + * VST's "pulse" is our "division". + * + * 8 divisions per bar, 1 division = quarter, so 8 quarters per bar, ppq = 1 + * 8 divisions per bar, 1 division = eighth, so 4 quarters per bar, ppq = 2 + * 4 divisions per bar, 1 division = quarter, so 4 quarters per bar, ppq = 1 + * 4 divisions per bar, 1 division = half, so 8 quarters per bar, ppq = 0.5 + * 4 divisions per bar, 1 division = fifth, so (4 * 5/4) quarters per bar, ppq = 5/4 + * + * general: divs_per_bar / (note_type / 4.0) + */ + double ppq_scaling = tm.meter().note_divisor() / 4.0; + + /* Note that this assumes constant meter/tempo throughout the session. Stupid VST */ + double ppqBar = double(bbt.bars - 1) * tm.meter().divisions_per_bar(); + double ppqBeat = double(bbt.beats - 1); + double ppqTick = double(bbt.ticks) / Timecode::BBT_Time::ticks_per_beat; + + ppqBar *= ppq_scaling; + ppqBeat *= ppq_scaling; + ppqTick *= ppq_scaling; if (value & (kVstPpqPosValid)) { timeinfo->ppqPos = ppqPos; |