/***********************************************************************/
-double
+double
Meter::frames_per_grid (const Tempo& tempo, framecnt_t sr) const
{
/* This is tempo- and meter-sensitive. The number it returns
- is based on the interval between any two lines in the
+ is based on the interval between any two lines in the
grid that is constructed from tempo and meter sections.
The return value IS NOT interpretable in terms of "beats".
TempoSection::update_bar_offset_from_bbt (const Meter& m)
{
- _bar_offset = ((start().beats - 1) * BBT_Time::ticks_per_beat + start().ticks) /
+ _bar_offset = ((start().beats - 1) * BBT_Time::ticks_per_beat + start().ticks) /
(m.divisions_per_bar() * BBT_Time::ticks_per_beat);
DEBUG_TRACE (DEBUG::TempoMath, string_compose ("Tempo set bar offset to %1 from %2 w/%3\n", _bar_offset, start(), m.divisions_per_bar()));
/* remember the 1-based counting properties of beats */
new_start.beats += 1;
-
- DEBUG_TRACE (DEBUG::TempoMath, string_compose ("from bar offset %1 and dpb %2, ticks = %3->%4 beats = %5\n",
+
+ DEBUG_TRACE (DEBUG::TempoMath, string_compose ("from bar offset %1 and dpb %2, ticks = %3->%4 beats = %5\n",
_bar_offset, meter.divisions_per_bar(), ticks, new_start.ticks, new_start.beats));
set_start (new_start);
if ((prop = node.property ("beats-per-bar")) == 0) {
error << _("MeterSection XML node has no \"beats-per-bar\" or \"divisions-per-bar\" property") << endmsg;
throw failed_constructor();
- }
+ }
}
if (sscanf (prop->value().c_str(), "%lf", &_divisions_per_bar) != 1 || _divisions_per_bar < 0.0) {
assert (section->start().ticks == 0);
/* we only allow new meters to be inserted on beat 1 of an existing
- * measure.
+ * measure.
*/
if (dynamic_cast<MeterSection*>(section)) {
metrics.erase (i);
}
break;
- }
+ }
} else if (!iter_is_tempo && !insert_is_tempo) {
/* as we start, we are *guaranteed* to have m.meter and m.tempo pointing
at something, because we insert the default tempo and meter during
TempoMap construction.
-
+
now see if we can find better candidates.
*/
round the start time appropriately. remember that
`where' is based on the existing tempo map, not
the result after we insert the new meter.
-
+
*/
if (where.beats != 1) {
for (Metrics::iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
- {
+ {
Glib::Threads::RWLock::WriterLock lm (lock);
*((Tempo*) t) = newtempo;
recompute_map (false);
}
/* find the metric immediately after the tempo + meter sections for the
- * last point in the map
+ * last point in the map
*/
for (next_metric = metrics.begin(); next_metric != metrics.end(); ++next_metric) {
}
/* we cast away const here because this is the one place where we need
- * to actually modify the frame time of each metric section.
+ * to actually modify the frame time of each metric section.
*/
- _extend_map (const_cast<TempoSection*> ((*i).tempo),
+ _extend_map (const_cast<TempoSection*> ((*i).tempo),
const_cast<MeterSection*> ((*i).meter),
next_metric, BBT_Time ((*i).bar, (*i).beat, 0), (*i).frame, end);
}
void
-TempoMap::_extend_map (TempoSection* tempo, MeterSection* meter,
+TempoMap::_extend_map (TempoSection* tempo, MeterSection* meter,
Metrics::iterator next_metric,
BBT_Time current, framepos_t current_frame, framepos_t end)
{
* is within, which will be different
* from the preceding following ones
* since it takes part of its duration
- * from the preceding tempo and part
+ * from the preceding tempo and part
* from this new tempo.
*/
/* set tempo section location
* based on offset from last
- * bar start
+ * bar start
*/
- tempo->set_frame (bar_start_frame +
+ tempo->set_frame (bar_start_frame +
llrint ((ts->bar_offset() * meter->divisions_per_bar() * beat_frames)));
/* advance to the location of
beat_frames = meter->frames_per_grid (*tempo, _frame_rate);
- DEBUG_TRACE (DEBUG::TempoMath, string_compose ("New metric with beat frames = %1 dpb %2 meter %3 tempo %4\n",
+ DEBUG_TRACE (DEBUG::TempoMath, string_compose ("New metric with beat frames = %1 dpb %2 meter %3 tempo %4\n",
beat_frames, meter->divisions_per_bar(), *((Meter*)meter), *((Tempo*)tempo)));
++next_metric;
}
}
- }
+ }
if (current.beats == 1) {
DEBUG_TRACE (DEBUG::TempoMath, string_compose ("Add Bar at %1|1 @ %2\n", current.bars, current_frame));
BBTPointList::const_iterator e = bbt_before_or_at (BBT_Time (bbt.bars, bbt.beats, 0));
if (bbt.ticks != 0) {
- return ((*e).frame - (*s).frame) +
+ return ((*e).frame - (*s).frame) +
llrint ((*e).tempo->frames_per_beat (_frame_rate) * (bbt.ticks/BBT_Time::ticks_per_beat));
} else {
return ((*e).frame - (*s).frame);
}
framecnt_t
-TempoMap::bbt_duration_at_unlocked (const BBT_Time& when, const BBT_Time& bbt, int /*dir*/)
+TempoMap::bbt_duration_at_unlocked (const BBT_Time& when, const BBT_Time& bbt, int /*dir*/)
{
if (bbt.bars == 0 && bbt.beats == 0 && bbt.ticks == 0) {
return 0;
/* add any additional frames related to ticks in the added value */
if (bbt.ticks != 0) {
- return ((*wi).frame - (*start).frame) +
+ return ((*wi).frame - (*start).frame) +
(*wi).tempo->frames_per_beat (_frame_rate) * (bbt.ticks/BBT_Time::ticks_per_beat);
} else {
return ((*wi).frame - (*start).frame);
++i;
assert (i != _map.end());
the_beat.ticks -= BBT_Time::ticks_per_beat;
- }
+ }
} else if (dir < 0) {
assert (i != _map.end());
the_beat.ticks -= BBT_Time::ticks_per_beat;
DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("fold beat to %1\n", the_beat));
- }
+ }
} else if (rem > 0) {
}
}
- return (*i).frame + (the_beat.ticks/BBT_Time::ticks_per_beat) *
+ return (*i).frame + (the_beat.ticks/BBT_Time::ticks_per_beat) *
(*i).tempo->frames_per_beat (_frame_rate);
}
}
fi--;
}
- DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to bar: map iter at %1|%2 %3, return\n",
+ DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to bar: map iter at %1|%2 %3, return\n",
(*fi).bar, (*fi).beat, (*fi).frame));
return (*fi).frame;
}
}
- DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to bar: map iter at %1|%2 %3, return\n",
+ DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to bar: map iter at %1|%2 %3, return\n",
(*fi).bar, (*fi).beat, (*fi).frame));
return (*fi).frame;
DEBUG_TRACE (DEBUG::SnapBBT, "requested frame is on beat, step back\n");
--fi;
}
- DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to beat: map iter at %1|%2 %3, return\n",
+ DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to beat: map iter at %1|%2 %3, return\n",
(*fi).bar, (*fi).beat, (*fi).frame));
return (*fi).frame;
} else if (dir > 0) {
DEBUG_TRACE (DEBUG::SnapBBT, "requested frame is on beat, step forward\n");
++fi;
}
- DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to beat: map iter at %1|%2 %3, return\n",
+ DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("rounded to beat: map iter at %1|%2 %3, return\n",
(*fi).bar, (*fi).beat, (*fi).frame));
return (*fi).frame;
} else {
}
void
-TempoMap::get_grid (TempoMap::BBTPointList::const_iterator& begin,
- TempoMap::BBTPointList::const_iterator& end,
- framepos_t lower, framepos_t upper)
+TempoMap::get_grid (TempoMap::BBTPointList::const_iterator& begin,
+ TempoMap::BBTPointList::const_iterator& end,
+ framepos_t lower, framepos_t upper)
{
- {
+ {
Glib::Threads::RWLock::WriterLock lm (lock);
if (_map.empty() || (_map.back().frame < upper)) {
recompute_map (false, upper);
if (ts->bar_offset() < 0.0) {
if (last_meter) {
ts->update_bar_offset_from_bbt (*last_meter);
- }
+ }
}
}
if (prev != metrics.end()) {
if (dynamic_cast<MeterSection*>(*prev) && dynamic_cast<MeterSection*>(*i)) {
if ((*prev)->start() == (*i)->start()) {
+ cerr << string_compose (_("Multiple meter definitions found at %1"), (*prev)->start()) << endmsg;
error << string_compose (_("Multiple meter definitions found at %1"), (*prev)->start()) << endmsg;
return -1;
}
} else if (dynamic_cast<TempoSection*>(*prev) && dynamic_cast<TempoSection*>(*i)) {
if ((*prev)->start() == (*i)->start()) {
+ cerr << string_compose (_("Multiple tempo definitions found at %1"), (*prev)->start()) << endmsg;
error << string_compose (_("Multiple tempo definitions found at %1"), (*prev)->start()) << endmsg;
return -1;
}
PropertyChanged (PropertyChange ());
}
bool
-TempoMap::cut_time (framepos_t where, framecnt_t amount)
+TempoMap::remove_time (framepos_t where, framecnt_t amount)
{
bool moved = false;
TempoSection* last_tempo = NULL;
MeterSection* last_meter = NULL;
+ bool tempo_after = false; // is there a tempo marker at the first sample after the removed range?
+ bool meter_after = false; // is there a meter marker likewise?
{
Glib::Threads::RWLock::WriterLock lm (lock);
for (Metrics::iterator i = metrics.begin(); i != metrics.end(); ++i) {
last_meter = lm;
}
else if ((*i)->frame() >= where) {
+ // TODO: make sure that moved tempo/meter markers are rounded to beat/bar boundaries
(*i)->set_frame ((*i)->frame() - amount);
+ if ((*i)->frame() == where) {
+ // marker was immediately after end of range
+ tempo_after = dynamic_cast<TempoSection*> (*i);
+ meter_after = dynamic_cast<MeterSection*> (*i);
+ }
moved = true;
}
}
//find the last TEMPO and METER metric (if any) and move it to the cut point so future stuff is correct
- if (last_tempo) {
+ if (last_tempo && !tempo_after) {
metric_kill_list.remove(last_tempo);
last_tempo->set_frame(where);
moved = true;
}
- if (last_meter) {
+ if (last_meter && !meter_after) {
metric_kill_list.remove(last_meter);
last_meter->set_frame(where);
moved = true;
if (op.ticks) {
if (op.ticks >= BBT_Time::ticks_per_beat) {
pos += llrint (frames_per_beat + /* extra beat */
- (frames_per_beat * ((op.ticks % (uint32_t) BBT_Time::ticks_per_beat) /
+ (frames_per_beat * ((op.ticks % (uint32_t) BBT_Time::ticks_per_beat) /
(double) BBT_Time::ticks_per_beat)));
} else {
pos += llrint (frames_per_beat * (op.ticks / (double) BBT_Time::ticks_per_beat));
if (pos < 0) {
/* not really correct, but we should catch pos < 0 at a higher
- level
+ level
*/
return _map.begin();
}
}
TempoMap::BBTPointList::const_iterator
-TempoMap::bbt_after_or_at (framepos_t pos)
+TempoMap::bbt_after_or_at (framepos_t pos)
{
/* CALLER MUST HOLD READ LOCK */
return i;
}
-std::ostream&
+std::ostream&
operator<< (std::ostream& o, const Meter& m) {
return o << m.divisions_per_bar() << '/' << m.note_divisor();
}
-std::ostream&
+std::ostream&
operator<< (std::ostream& o, const Tempo& t) {
return o << t.beats_per_minute() << " 1/" << t.note_type() << "'s per minute";
}
-std::ostream&
+std::ostream&
operator<< (std::ostream& o, const MetricSection& section) {
o << "MetricSection @ " << section.frame() << " aka " << section.start() << ' ';
projects / ardour.git / blobdiff