ardour/livetrax
13
0
Fork 0
Code

Tempo ramps - change some prototypes, rename some methods.

Browse Source
This commit is contained in:
nick_m 2016-03-04 04:31:11 +11:00
parent 96b511e221
commit aa95ffbc97
2 changed files with 52 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libs/ardour/ardour/tempo.h
View File

@ -375,9 +375,9 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
void remove_tempo (const TempoSection&, bool send_signal);
void remove_meter (const MeterSection&, bool send_signal);
framepos_t compute_replacement_tempo_section (TempoSection* section, const double& tempo, const double& beat);
Metrics imagine_new_order (TempoSection* section, const Tempo& bpm, const framepos_t& frame, const double& beat);
Metrics imagine_new_order (MeterSection* section, const Meter& mt, const framepos_t& frame, const double& beat);
framepos_t compute_replacement_tempo_section (TempoSection* section, const Tempo& bpm, const double& beat);
Metrics get_new_order (TempoSection* section, const Tempo& bpm, const framepos_t& frame, const double& beat);
Metrics get_new_order (MeterSection* section, const Meter& mt, const framepos_t& frame, const double& beat);
void replace_tempo (const TempoSection&, const Tempo&, const double& where, TempoSection::Type type);
void replace_tempo (const TempoSection&, const Tempo&, const framepos_t& frame, TempoSection::Type type);
@ -445,6 +445,8 @@ private:
framecnt_t _frame_rate;
mutable Glib::Threads::RWLock lock;
void recompute_tempos ();
void recompute_meters ();
void recompute_map (bool reassign_tempo_bbt, framepos_t end = -1);
framepos_t round_to_type (framepos_t fr, RoundMode dir, BBTPointType);

87
libs/ardour/tempo.cc
View File

@ -392,7 +392,7 @@ TempoSection::compute_c_func (double end_bpm, framepos_t end_frame, framecnt_t f
framecnt_t
TempoSection::minute_to_frame (double time, framecnt_t frame_rate) const
{
return (framecnt_t) floor ((time * 60.0 * frame_rate) + 0.5);
return (framecnt_t) floor ((time * 60.0 * frame_rate));
}
double
@ -877,14 +877,14 @@ TempoMap::do_insert (MetricSection* section)
* @return returns - the position in frames where the new tempo section will lie
*/
framepos_t
TempoMap::compute_replacement_tempo_section (TempoSection* section, const double& bpm, const double& beat)
TempoMap::compute_replacement_tempo_section (TempoSection* section, const Tempo& bpm, const double& beat)
{
Glib::Threads::RWLock::WriterLock lm (lock);
TempoSection* prev_ts = 0;
TempoSection* t;
framepos_t ret = 0;
MetricSectionSorter cmp;
{
Glib::Threads::RWLock::WriterLock lm (lock);
for (Metrics::iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
@ -892,8 +892,8 @@ TempoMap::compute_replacement_tempo_section (TempoSection* section, const double
if (section->beat() == t->beat()) {
continue;
}
if (beat < t->beat()){
prev_ts->set_c_func_from_tempo_and_beat (bpm, beat, _frame_rate);
if (t->beat() > beat){
prev_ts->set_c_func_from_tempo_and_beat (bpm.beats_per_minute(), beat, _frame_rate);
section->set_beat (beat);
section->set_frame (prev_ts->frame_at_beat (beat, _frame_rate));
break;
@ -920,8 +920,8 @@ TempoMap::compute_replacement_tempo_section (TempoSection* section, const double
if (section->beat() == t->beat()) {
continue;
}
if (beat < t->beat()){
prev_ts->set_c_func_from_tempo_and_beat (bpm, beat, _frame_rate);
if (t->beat() > beat){
prev_ts->set_c_func_from_tempo_and_beat (bpm.beats_per_minute(), beat, _frame_rate);
ret = prev_ts->frame_at_beat (beat, _frame_rate);
section->set_frame (ret);
prev_ts = section;
@ -940,13 +940,13 @@ TempoMap::compute_replacement_tempo_section (TempoSection* section, const double
}
if (!ret) {
prev_ts->set_c_func_from_tempo_and_beat (bpm, beat, _frame_rate);
prev_ts->set_c_func_from_tempo_and_beat (bpm.beats_per_minute(), beat, _frame_rate);
section->set_beat (beat);
section->set_frame (prev_ts->frame_at_beat (beat, _frame_rate));
ret = prev_ts->frame_at_beat (beat, _frame_rate);
}
}
return ret;
}
@ -995,7 +995,7 @@ TempoMap::replace_tempo (const TempoSection& ts, const Tempo& tempo, const frame
}
Metrics
TempoMap::imagine_new_order (TempoSection* section, const Tempo& bpm, const framepos_t& frame, const double& beat)
TempoMap::get_new_order (TempoSection* section, const Tempo& bpm, const framepos_t& frame, const double& beat)
{
Metrics imaginary (metrics);
@ -1032,10 +1032,8 @@ TempoMap::imagine_new_order (TempoSection* section, const Tempo& bpm, const fram
prev_ts = t;
}
}
MetricSectionSorter cmp;
imaginary.sort (cmp);
/* to do - check precision using _at_tempo() methods */
/*
prev_ts = 0;
@ -1059,7 +1057,7 @@ TempoMap::imagine_new_order (TempoSection* section, const Tempo& bpm, const fram
}
Metrics
TempoMap::imagine_new_order(MeterSection* section, const Meter& mt, const framepos_t& frame, const double& beat)
TempoMap::get_new_order(MeterSection* section, const Meter& mt, const framepos_t& frame, const double& beat)
{
/* incomplete */
Metrics imaginary (metrics);
@ -1134,10 +1132,10 @@ TempoMap::gui_move_tempo (TempoSection* ts, const Tempo& bpm, const framepos_t&
{
{
Glib::Threads::RWLock::WriterLock lm (lock);
Metrics new_order = imagine_new_order (ts, bpm, frame, beat_where);
Metrics new_order = get_new_order (ts, bpm, frame, beat_where);
metrics.clear();
metrics = new_order;
recompute_map (false);
}
@ -1148,7 +1146,7 @@ void
TempoMap::gui_move_meter (MeterSection* ms, const Meter& mt, const framepos_t& frame, const double& beat_where)
{
Glib::Threads::RWLock::WriterLock lm (lock);
Metrics imaginary = imagine_new_order (ms, mt, frame, beat_where);
Metrics imaginary = get_new_order (ms, mt, frame, beat_where);
}
void
@ -1448,33 +1446,12 @@ TempoMap::first_tempo ()
abort(); /*NOTREACHED*/
return *t;
}
void
TempoMap::recompute_map (bool reassign_tempo_bbt, framepos_t end)
TempoMap::recompute_tempos ()
{
/* CALLER MUST HOLD WRITE LOCK */
if (end < 0) {
/* we will actually stop once we hit
the last metric.
*/
end = max_framepos;
}
DEBUG_TRACE (DEBUG::TempoMath, string_compose ("recomputing tempo map, zero to %1\n", end));
if (end == 0) {
/* silly call from Session::process() during startup
*/
return;
}
Metrics::const_iterator i;
TempoSection* prev_ts = 0;
for (i = metrics.begin(); i != metrics.end(); ++i) {
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
@ -1504,7 +1481,11 @@ TempoMap::recompute_map (bool reassign_tempo_bbt, framepos_t end)
prev_ts = t;
}
}
}
void
TempoMap::recompute_meters ()
{
MeterSection* meter = 0;
for (Metrics::const_iterator mi = metrics.begin(); mi != metrics.end(); ++mi) {
@ -1529,6 +1510,32 @@ TempoMap::recompute_map (bool reassign_tempo_bbt, framepos_t end)
}
}
void
TempoMap::recompute_map (bool reassign_tempo_bbt, framepos_t end)
{
/* CALLER MUST HOLD WRITE LOCK */
if (end < 0) {
/* we will actually stop once we hit
the last metric.
*/
end = max_framepos;
}
DEBUG_TRACE (DEBUG::TempoMath, string_compose ("recomputing tempo map, zero to %1\n", end));
if (end == 0) {
/* silly call from Session::process() during startup
*/
return;
}
recompute_tempos();
recompute_meters();
}
TempoMetric
TempoMap::metric_at (framepos_t frame, Metrics::const_iterator* last) const