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Tempo ramps - massively speed up dragging of tempo marks.

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This commit is contained in:
nick_m 2015-12-23 23:32:16 +11:00
parent db77ca99a1
commit ba0cfe81a4
2 changed files with 20 additions and 4 deletions
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20
gtk2_ardour/editor_tempodisplay.cc
View File

@ -126,7 +126,6 @@ Editor::tempo_map_changed (const PropertyChange& /*ignored*/)
void
Editor::marker_position_changed ()
{
// yes its identical...
if (!_session) {
return;
}
@ -136,10 +135,27 @@ Editor::marker_position_changed ()
if (tempo_lines) {
tempo_lines->tempo_map_changed();
}
TempoMarker* tempo_marker;
MeterMarker* meter_marker;
const TempoSection *ts;
const MeterSection *ms;
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
if ((tempo_marker = dynamic_cast<TempoMarker*> (*x)) != 0) {
if ((ts = &tempo_marker->tempo()) != 0) {
cerr << "tempo section found for tempo marker " << endl;
tempo_marker->set_position (ts->frame ());
}
}
if ((meter_marker = dynamic_cast<MeterMarker*> (*x)) != 0) {
if ((ms = &meter_marker->meter()) != 0) {
cerr << "meter section found for meter marker " << endl;
meter_marker->set_position (ms->frame ());
}
}
}
std::vector<TempoMap::BBTPoint> grid;
compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
_session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
draw_measures (grid);
update_tempo_based_rulers (grid);
}

4
libs/ardour/tempo.cc
View File

@ -1220,8 +1220,8 @@ TempoMap::beats_to_bbt (double beats)
framecnt_t frame = frame_at_beat (beats);
uint32_t cnt = 0;
if (n_meters() < 2) {
/* XX most of this is utter crap */
if (n_meters() == 1) {
uint32_t bars = (uint32_t) floor (beats / prev_ms->note_divisor());
double remaining_beats = beats - (bars * prev_ms->note_divisor());
double remaining_ticks = (remaining_beats - floor (remaining_beats)) * BBT_Time::ticks_per_beat;