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Avoid the use of dynamic_cast in TempoMap for performance improvement.

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- review / comment would be appreciated here.
This commit is contained in:
nick_m
2016-06-25 00:08:40 +10:00
parent b732147676
commit 4bdbe77414
2 changed files with 134 additions and 90 deletions
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24
libs/ardour/ardour/tempo.h
View File

@@ -105,8 +105,8 @@ class LIBARDOUR_API Meter {
/** A section of timeline with a certain Tempo or Meter. */
class LIBARDOUR_API MetricSection {
public:
MetricSection (double pulse, framepos_t frame, PositionLockStyle pls)
: _pulse (pulse), _frame (frame), _movable (true), _position_lock_style (pls) {}
MetricSection (double pulse, framepos_t frame, PositionLockStyle pls, bool is_tempo)
: _pulse (pulse), _frame (frame), _movable (true), _position_lock_style (pls), _is_tempo (is_tempo) {}
virtual ~MetricSection() {}
@@ -129,19 +129,21 @@ class LIBARDOUR_API MetricSection {
PositionLockStyle position_lock_style () const { return _position_lock_style; }
void set_position_lock_style (PositionLockStyle ps) { _position_lock_style = ps; }
const bool is_tempo () const { return _is_tempo; }
private:
double _pulse;
framepos_t _frame;
bool _movable;
PositionLockStyle _position_lock_style;
const bool _is_tempo;
};
/** A section of timeline with a certain Meter. */
class LIBARDOUR_API MeterSection : public MetricSection, public Meter {
public:
MeterSection (double pulse, framepos_t frame, double beat, const Timecode::BBT_Time& bbt, double bpb, double note_type, PositionLockStyle pls)
: MetricSection (pulse, frame, pls), Meter (bpb, note_type), _bbt (bbt), _beat (beat) {}
: MetricSection (pulse, frame, pls, false), Meter (bpb, note_type), _bbt (bbt), _beat (beat) {}
MeterSection (const XMLNode&);
@@ -172,7 +174,7 @@ class LIBARDOUR_API TempoSection : public MetricSection, public Tempo {
};
TempoSection (const double& pulse, const framepos_t& frame, double qpm, double note_type, Type tempo_type, PositionLockStyle pls)
: MetricSection (pulse, frame, pls), Tempo (qpm, note_type), _type (tempo_type), _c_func (0.0), _active (true), _locked_to_meter (false) {}
: MetricSection (pulse, frame, pls, true), Tempo (qpm, note_type), _type (tempo_type), _c_func (0.0), _active (true), _locked_to_meter (false) {}
TempoSection (const XMLNode&);
@@ -198,8 +200,8 @@ class LIBARDOUR_API TempoSection : public MetricSection, public Tempo {
double tempo_at_pulse (const double& pulse) const;
double pulse_at_tempo (const double& ppm, const framepos_t& frame, const framecnt_t& frame_rate) const;
double pulse_at_frame (const framepos_t& frame, const framecnt_t& frame_rate) const;
frameoffset_t frame_at_pulse (const double& pulse, const framecnt_t& frame_rate) const;
double pulse_at_frame (const framepos_t& frame, const framepos_t& frame_rate) const;
framepos_t frame_at_pulse (const double& pulse, const framecnt_t& frame_rate) const;
double compute_c_func_pulse (const double& end_bpm, const double& end_pulse, const framecnt_t& frame_rate);
double compute_c_func_frame (const double& end_bpm, const framepos_t& end_frame, const framecnt_t& frame_rate) const;
@@ -401,7 +403,7 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
*/
double beat_at_frame (const framecnt_t& frame) const;
framecnt_t frame_at_beat (const double& beat) const;
framepos_t frame_at_beat (const double& beat) const;
Tempo tempo_at_frame (const framepos_t& frame) const;
framepos_t frame_at_tempo (const Tempo& tempo) const;
@@ -415,7 +417,7 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
double beat_at_pulse (const double& pulse) const;
double pulse_at_frame (const framecnt_t& frame) const;
framecnt_t frame_at_pulse (const double& pulse) const;
framepos_t frame_at_pulse (const double& pulse) const;
/* bbt - it's nearly always better to use beats.*/
Timecode::BBT_Time bbt_at_frame (framepos_t when);
@@ -461,13 +463,13 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
private:
double beat_at_frame_locked (const Metrics& metrics, const framecnt_t& frame) const;
framecnt_t frame_at_beat_locked (const Metrics& metrics, const double& beat) const;
framepos_t frame_at_beat_locked (const Metrics& metrics, const double& beat) const;
double pulse_at_beat_locked (const Metrics& metrics, const double& beat) const;
double beat_at_pulse_locked (const Metrics& metrics, const double& pulse) const;
double pulse_at_frame_locked (const Metrics& metrics, const framecnt_t& frame) const;
framecnt_t frame_at_pulse_locked (const Metrics& metrics, const double& pulse) const;
double pulse_at_frame_locked (const Metrics& metrics, const framepos_t& frame) const;
framepos_t frame_at_pulse_locked (const Metrics& metrics, const double& pulse) const;
Tempo tempo_at_frame_locked (const Metrics& metrics, const framepos_t& frame) const;
framepos_t frame_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) const;

200
libs/ardour/tempo.cc
View File

@@ -73,7 +73,7 @@ Meter::frames_per_bar (const Tempo& tempo, framecnt_t sr) const
const string TempoSection::xml_state_node_name = "Tempo";
TempoSection::TempoSection (const XMLNode& node)
: MetricSection (0.0, 0, MusicTime)
: MetricSection (0.0, 0, MusicTime, true)
, Tempo (TempoMap::default_tempo())
, _c_func (0.0)
, _active (true)
@@ -453,7 +453,7 @@ TempoSection::time_at_pulse (const double& pulse) const
const string MeterSection::xml_state_node_name = "Meter";
MeterSection::MeterSection (const XMLNode& node)
: MetricSection (0.0, 0, MusicTime), Meter (TempoMap::default_meter())
: MetricSection (0.0, 0, MusicTime, false), Meter (TempoMap::default_meter())
{
XMLProperty const * prop;
LocaleGuard lg;
@@ -1231,7 +1231,8 @@ TempoMap::recompute_tempos (Metrics& metrics)
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -1273,14 +1274,16 @@ TempoMap::recompute_meters (Metrics& metrics)
MeterSection* prev_m = 0;
for (Metrics::const_iterator mi = metrics.begin(); mi != metrics.end(); ++mi) {
if ((meter = dynamic_cast<MeterSection*> (*mi)) != 0) {
if (!(*mi)->is_tempo()) {
meter = static_cast<MeterSection*> (*mi);
if (meter->position_lock_style() == AudioTime) {
double pulse = 0.0;
pair<double, BBT_Time> b_bbt;
TempoSection* meter_locked_tempo = 0;
for (Metrics::const_iterator ii = metrics.begin(); ii != metrics.end(); ++ii) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*ii)) != 0) {
if ((*ii)->is_tempo()) {
t = static_cast<TempoSection*> (*ii);
if ((t->locked_to_meter() || !t->movable()) && t->frame() == meter->frame()) {
meter_locked_tempo = t;
break;
@@ -1410,7 +1413,8 @@ TempoMap::metric_at (BBT_Time bbt) const
for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
MeterSection* mw;
if ((mw = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
mw = static_cast<MeterSection*> (*i);
BBT_Time section_start (mw->bbt());
if (section_start.bars > bbt.bars || (section_start.bars == bbt.bars && section_start.beats > bbt.beats)) {
@@ -1440,13 +1444,12 @@ TempoMap::beat_at_frame_locked (const Metrics& metrics, const framecnt_t& frame)
MeterSection* next_m = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (prev_m && m->frame() > frame) {
next_m = m;
if (!(*i)->is_tempo()) {
if (prev_m && (*i)->frame() > frame) {
next_m = static_cast<MeterSection*> (*i);
break;
}
prev_m = m;
prev_m = static_cast<MeterSection*> (*i);
}
}
if (frame < prev_m->frame()) {
@@ -1462,7 +1465,7 @@ TempoMap::beat_at_frame_locked (const Metrics& metrics, const framecnt_t& frame)
return beat;
}
framecnt_t
framepos_t
TempoMap::frame_at_beat (const double& beat) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
@@ -1470,15 +1473,17 @@ TempoMap::frame_at_beat (const double& beat) const
}
/* meter & tempo section based */
framecnt_t
framepos_t
TempoMap::frame_at_beat_locked (const Metrics& metrics, const double& beat) const
{
MeterSection* prev_m = 0;
TempoSection* prev_t = 0;
MeterSection* m;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m && m->beat() > beat) {
break;
}
@@ -1486,9 +1491,11 @@ TempoMap::frame_at_beat_locked (const Metrics& metrics, const double& beat) cons
}
}
TempoSection* t;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (prev_t && ((t->pulse() - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat() > beat) {
break;
}
@@ -1512,9 +1519,11 @@ TempoMap::tempo_at_frame_locked (const Metrics& metrics, const framepos_t& frame
{
TempoSection* prev_t = 0;
TempoSection* t;
for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -1557,7 +1566,8 @@ TempoMap::frame_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) con
for (i = _metrics.begin(); i != _metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
@@ -1573,8 +1583,7 @@ TempoMap::frame_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) con
const double prev_t_ppm = prev_t->beats_per_minute() / prev_t->note_type();
if ((t_ppm > tempo_ppm && prev_t_ppm < tempo_ppm) || (t_ppm < tempo_ppm && prev_t_ppm > tempo_ppm)) {
const framepos_t ret_frame = prev_t->frame_at_tempo (tempo_ppm, prev_t->pulse(), _frame_rate);
return ret_frame;
return prev_t->frame_at_tempo (tempo_ppm, prev_t->pulse(), _frame_rate);
}
}
prev_t = t;
@@ -1627,7 +1636,8 @@ TempoMap::beat_at_pulse_locked (const Metrics& metrics, const double& pulse) con
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m && m->pulse() > pulse) {
if (((pulse - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat() > m->beat()) {
break;
@@ -1642,7 +1652,7 @@ TempoMap::beat_at_pulse_locked (const Metrics& metrics, const double& pulse) con
}
double
TempoMap::pulse_at_frame (const framecnt_t& frame) const
TempoMap::pulse_at_frame (const framepos_t& frame) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
return pulse_at_frame_locked (_metrics, frame);
@@ -1650,14 +1660,15 @@ TempoMap::pulse_at_frame (const framecnt_t& frame) const
/* tempo section based */
double
TempoMap::pulse_at_frame_locked (const Metrics& metrics, const framecnt_t& frame) const
TempoMap::pulse_at_frame_locked (const Metrics& metrics, const framepos_t& frame) const
{
/* HOLD (at least) THE READER LOCK */
TempoSection* prev_t = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -1676,7 +1687,7 @@ TempoMap::pulse_at_frame_locked (const Metrics& metrics, const framecnt_t& frame
return pulses_in_section + prev_t->pulse();
}
framecnt_t
framepos_t
TempoMap::frame_at_pulse (const double& pulse) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
@@ -1684,7 +1695,7 @@ TempoMap::frame_at_pulse (const double& pulse) const
}
/* tempo section based */
framecnt_t
framepos_t
TempoMap::frame_at_pulse_locked (const Metrics& metrics, const double& pulse) const
{
/* HOLD THE READER LOCK */
@@ -1694,7 +1705,8 @@ TempoMap::frame_at_pulse_locked (const Metrics& metrics, const double& pulse) co
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -1706,12 +1718,9 @@ TempoMap::frame_at_pulse_locked (const Metrics& metrics, const double& pulse) co
}
}
/* must be treated as constant, irrespective of _type */
double const pulses_in_section = pulse - prev_t->pulse();
double const dtime = pulses_in_section * prev_t->frames_per_pulse (_frame_rate);
double const dtime = (pulse - prev_t->pulse()) * prev_t->frames_per_pulse (_frame_rate);
framecnt_t const ret = (framecnt_t) floor (dtime) + prev_t->frame();
return ret;
return (framecnt_t) floor (dtime) + prev_t->frame();
}
double
@@ -1732,9 +1741,11 @@ TempoMap::beat_at_bbt_locked (const Metrics& metrics, const Timecode::BBT_Time&
/* because audio-locked meters have 'fake' integral beats,
there is no pulse offset here.
*/
MeterSection* m;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m) {
const double bars_to_m = (m->beat() - prev_m->beat()) / prev_m->divisions_per_bar();
if ((bars_to_m + (prev_m->bbt().bars - 1)) > (bbt.bars - 1)) {
@@ -1766,10 +1777,11 @@ TempoMap::bbt_at_beat_locked (const Metrics& metrics, const double& b) const
MeterSection* prev_m = 0;
const double beats = max (0.0, b);
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m = 0;
MeterSection* m = 0;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m) {
if (m->beat() > beats) {
/* this is the meter after the one our beat is on*/
@@ -1828,9 +1840,11 @@ TempoMap::pulse_at_bbt_locked (const Metrics& metrics, const Timecode::BBT_Time&
/* because audio-locked meters have 'fake' integral beats,
there is no pulse offset here.
*/
MeterSection* m;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m) {
if (m->bbt().bars > bbt.bars) {
break;
@@ -1860,10 +1874,12 @@ TempoMap::bbt_at_pulse_locked (const Metrics& metrics, const double& pulse) cons
{
MeterSection* prev_m = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m = 0;
MeterSection* m = 0;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m) {
double const pulses_to_m = m->pulse() - prev_m->pulse();
@@ -1950,9 +1966,11 @@ TempoMap::bbt_at_frame_locked (const Metrics& metrics, const framepos_t& frame)
MeterSection* prev_m = 0;
MeterSection* next_m = 0;
MeterSection* m;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m && m->frame() > frame) {
next_m = m;
break;
@@ -2038,7 +2056,8 @@ TempoMap::check_solved (const Metrics& metrics) const
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
MeterSection* m;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -2066,9 +2085,10 @@ TempoMap::check_solved (const Metrics& metrics) const
prev_t = t;
}
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m && m->position_lock_style() == AudioTime) {
TempoSection* t = const_cast<TempoSection*>(&tempo_section_at_frame_locked (metrics, m->frame() - 1));
const TempoSection* t = &tempo_section_at_frame_locked (metrics, m->frame() - 1);
const double nascent_m_pulse = ((m->beat() - prev_m->beat()) / prev_m->note_divisor()) + prev_m->pulse();
const framepos_t nascent_m_frame = t->frame_at_pulse (nascent_m_pulse, _frame_rate);
@@ -2090,7 +2110,8 @@ TempoMap::set_active_tempos (const Metrics& metrics, const framepos_t& frame)
{
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->movable()) {
t->set_active (true);
continue;
@@ -2118,7 +2139,8 @@ TempoMap::solve_map_frame (Metrics& imaginary, TempoSection* section, const fram
/* can't move a tempo before the first meter */
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (!m->movable()) {
first_m_frame = m->frame();
break;
@@ -2134,7 +2156,8 @@ TempoMap::solve_map_frame (Metrics& imaginary, TempoSection* section, const fram
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
@@ -2200,7 +2223,8 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -2284,7 +2308,8 @@ TempoMap::solve_map_frame (Metrics& imaginary, MeterSection* section, const fram
for (Metrics::const_iterator ii = imaginary.begin(); ii != imaginary.end(); ++ii) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*ii)) != 0) {
if ((*ii)->is_tempo()) {
t = static_cast<TempoSection*> (*ii);
if ((t->locked_to_meter() || !t->movable()) && t->frame() == section->frame()) {
meter_locked_tempo = t;
break;
@@ -2303,7 +2328,8 @@ TempoMap::solve_map_frame (Metrics& imaginary, MeterSection* section, const fram
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (m == section){
if (prev_m && section->movable()) {
const double beats = (pulse_at_frame_locked (imaginary, frame) - prev_m->pulse()) * prev_m->note_divisor();
@@ -2412,7 +2438,8 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti
/* disallow setting section to an existing meter's bbt */
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (m != section && m->bbt().bars == when.bars) {
return false;
}
@@ -2424,7 +2451,8 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti
for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
pair<double, BBT_Time> b_bbt;
double new_pulse = 0.0;
@@ -2446,7 +2474,8 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti
for (Metrics::const_iterator ii = imaginary.begin(); ii != imaginary.end(); ++ii) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*ii)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*ii);
if ((t->locked_to_meter() || !t->movable()) && t->frame() == m->frame()) {
meter_locked_tempo = t;
break;
@@ -2529,7 +2558,8 @@ TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, TempoSe
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
MeterSection* m;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (t == section) {
ret = new TempoSection (*t);
copy.push_back (ret);
@@ -2539,7 +2569,8 @@ TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, TempoSe
TempoSection* cp = new TempoSection (*t);
copy.push_back (cp);
}
if ((m = dynamic_cast<MeterSection *> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection *> (*i);
MeterSection* cp = new MeterSection (*m);
copy.push_back (cp);
}
@@ -2556,12 +2587,14 @@ TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, MeterSe
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
MeterSection* m;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
TempoSection* cp = new TempoSection (*t);
copy.push_back (cp);
}
if ((m = dynamic_cast<MeterSection *> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection *> (*i);
if (m == section) {
ret = new MeterSection (*m);
copy.push_back (ret);
@@ -2794,7 +2827,8 @@ TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const fra
TempoSection* next_t = 0;
for (Metrics::iterator i = future_map.begin(); i != future_map.end(); ++i) {
TempoSection* t = 0;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (t->frame() > ts->frame()) {
next_t = t;
break;
@@ -3147,13 +3181,14 @@ TempoMap::tempo_section_at_frame (framepos_t frame) const
const TempoSection&
TempoMap::tempo_section_at_frame_locked (const Metrics& metrics, framepos_t frame) const
{
Metrics::const_iterator i;
TempoSection* prev = 0;
for (i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
@@ -3179,9 +3214,11 @@ TempoMap::tempo_section_at_beat_locked (const Metrics& metrics, const double& be
TempoSection* prev_t = 0;
const MeterSection* prev_m = &meter_section_at_beat_locked (metrics, beat);
TempoSection* t;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (prev_t && ((t->pulse() - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat() > beat) {
break;
}
@@ -3200,21 +3237,23 @@ TempoMap::frames_per_beat_at (const framepos_t& frame, const framecnt_t& sr) con
{
Glib::Threads::RWLock::ReaderLock lm (lock);
const TempoSection* ts_at = &tempo_section_at_frame_locked (_metrics, frame);
const TempoSection* ts_at = 0;
const TempoSection* ts_after = 0;
Metrics::const_iterator i;
TempoSection* t;
for (i = _metrics.begin(); i != _metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((*i)->is_tempo()) {
t = static_cast<TempoSection*> (*i);
if (!t->active()) {
continue;
}
if ((*i)->frame() > frame) {
if (ts_at && (*i)->frame() > frame) {
ts_after = t;
break;
}
ts_at = t;
}
}
@@ -3231,10 +3270,12 @@ TempoMap::meter_section_at_frame_locked (const Metrics& metrics, framepos_t fram
Metrics::const_iterator i;
MeterSection* prev = 0;
for (i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
for (i = metrics.begin(); i != metrics.end(); ++i) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev && (*i)->frame() > frame) {
break;
@@ -3267,7 +3308,8 @@ TempoMap::meter_section_at_beat_locked (const Metrics& metrics, const double& be
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
if (!(*i)->is_tempo()) {
m = static_cast<MeterSection*> (*i);
if (prev_m && m->beat() > beat) {
break;
}
@@ -3501,7 +3543,7 @@ TempoMap::n_tempos() const
int cnt = 0;
for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
if (dynamic_cast<const TempoSection*>(*i) != 0) {
if ((*i)->is_tempo()) {
cnt++;
}
}
@@ -3516,7 +3558,7 @@ TempoMap::n_meters() const
int cnt = 0;
for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) {
if (dynamic_cast<const MeterSection*>(*i) != 0) {
if (!(*i)->is_tempo()) {
cnt++;
}
}