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Tempo ramps - midi notes resize when dragged, misc bug fixes.

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nick_m
2016-03-14 04:09:53 +11:00
parent 8fce08610a
commit d3c24fe0ca
3 changed files with 65 additions and 53 deletions
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3
libs/ardour/ardour/tempo.h
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@@ -435,8 +435,9 @@ private:
double beat_at_frame_locked (const Metrics& metrics, framecnt_t frame) const;
framecnt_t frame_at_beat_locked (const Metrics& metrics, double beat) const;
double tick_at_frame_locked (const Metrics& metrics, framecnt_t frame) const;
double tick_offset_at (const Metrics& metrics, double tick) const;
framecnt_t frame_offset_at (const Metrics& metrics, framepos_t frame) const;
frameoffset_t frame_offset_at (const Metrics& metrics, framepos_t frame) const;
framecnt_t frame_at_tick_locked (const Metrics& metrics, double tick) const;
framepos_t frame_time_locked (const Metrics& metrics, const Timecode::BBT_Time&);

93
libs/ardour/tempo.cc
View File

@@ -1529,7 +1529,9 @@ TempoMap::bbt_to_beats_locked (const Metrics& metrics, Timecode::BBT_Time bbt)
double accumulated_beats = 0.0;
double accumulated_bars = 0.0;
MeterSection* prev_ms = 0;
/* because audio-locked meters have 'fake' integral beats,
we don't have to worry about any offset here.
*/
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m;
if ((m = dynamic_cast<MeterSection*> (*i)) != 0) {
@@ -1651,6 +1653,35 @@ TempoMap::tick_at_frame_locked (const Metrics& metrics, framecnt_t frame) const
}
framecnt_t
TempoMap::frame_at_tick_locked (const Metrics& metrics, double tick) const
{
/* HOLD THE READER LOCK */
const TempoSection* prev_ts = 0;
double accumulated_ticks = 0.0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if (prev_ts && t->tick() > tick) {
return prev_ts->frame_at_tick (tick, _frame_rate);
}
accumulated_ticks = t->tick();
prev_ts = t;
}
}
/* must be treated as constant, irrespective of _type */
double const ticks_in_section = tick - accumulated_ticks;
double const dtime = (ticks_in_section / BBT_Time::ticks_per_beat) * prev_ts->frames_per_beat (_frame_rate);
framecnt_t const ret = (((framecnt_t) floor (dtime)) + prev_ts->frame());
return ret;
}
double
TempoMap::tick_offset_at (const Metrics& metrics, double tick) const
{
@@ -1675,10 +1706,10 @@ TempoMap::tick_offset_at (const Metrics& metrics, double tick) const
return beat_off;
}
framecnt_t
frameoffset_t
TempoMap::frame_offset_at (const Metrics& metrics, framepos_t frame) const
{
framecnt_t frame_off = 0;
frameoffset_t frame_off = 0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
MeterSection* m = 0;
@@ -1687,7 +1718,7 @@ TempoMap::frame_offset_at (const Metrics& metrics, framepos_t frame) const
break;
}
if (m->position_lock_style() == AudioTime) {
frame_off = frame_at_beat_locked (metrics, m->beat()) - m->frame();
frame_off += frame_at_beat_locked (metrics, m->beat()) - m->frame();
}
}
}
@@ -1695,36 +1726,6 @@ TempoMap::frame_offset_at (const Metrics& metrics, framepos_t frame) const
return frame_off;
}
framecnt_t
TempoMap::frame_at_tick_locked (const Metrics& metrics, double tick) const
{
/* HOLD THE READER LOCK */
const TempoSection* prev_ts = 0;
double accumulated_ticks = 0.0;
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if (prev_ts && t->tick() > tick) {
/* prev_ts is the one affecting us. */
return prev_ts->frame_at_tick (tick, _frame_rate);
}
accumulated_ticks = t->tick();
prev_ts = t;
}
}
/* must be treated as constant, irrespective of _type */
double const ticks_in_section = tick - accumulated_ticks;
double const dtime = (ticks_in_section / BBT_Time::ticks_per_beat) * prev_ts->frames_per_beat (_frame_rate);
framecnt_t const ret = (((framecnt_t) floor (dtime)) + prev_ts->frame());
return ret;
}
double
TempoMap::beat_at_frame (framecnt_t frame) const
{
@@ -1943,7 +1944,6 @@ TempoMap::solve_map (Metrics& imaginary, TempoSection* section, const Tempo& bpm
}
imaginary.sort (cmp);
if (section->position_lock_style() == AudioTime) {
/* we're setting the beat */
section->set_position_lock_style (MusicTime);
@@ -2094,9 +2094,11 @@ TempoMap::bbt_duration_at (framepos_t pos, const BBT_Time& bbt, int dir)
framecnt_t const ret = time_at_bbt - offset_pos;
return ret - frame_offset_at (_metrics, pos);
}
double const ticks = bbt.ticks + (bbt.beats * BBT_Time::ticks_per_beat);
framecnt_t const ret = (framecnt_t) floor ((ticks / BBT_Time::ticks_per_beat) * first->frames_per_beat(_frame_rate));
return ret - frame_offset_at (_metrics, pos);
/* daft */
return (offset_pos + ret) - frame_offset_at (_metrics, pos);
}
framepos_t
@@ -2272,11 +2274,12 @@ TempoMap::get_grid (vector<TempoMap::BBTPoint>& points,
while (cnt <= upper_beat) {
framecnt_t pos = frame_at_beat_locked (_metrics, cnt);
framecnt_t const frame_offset = frame_offset_at (_metrics, pos);
Tempo const tempo = tempo_at (pos);
frameoffset_t const frame_offset = frame_offset_at (_metrics, pos);
pos -= frame_offset;
MeterSection const meter = meter_section_at (pos);
Tempo const tempo = tempo_at (pos);
BBT_Time const bbt = beats_to_bbt_locked (_metrics, (double) cnt);
points.push_back (BBTPoint (meter, tempo, pos, bbt.bars, bbt.beats));
@@ -2348,7 +2351,7 @@ const Tempo
TempoMap::tempo_at (framepos_t frame) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
frameoffset_t const frame_off = frame + frame_offset_at (_metrics, frame);
TempoSection* prev_ts = 0;
Metrics::const_iterator i;
@@ -2356,9 +2359,9 @@ TempoMap::tempo_at (framepos_t frame) const
for (i = _metrics.begin(); i != _metrics.end(); ++i) {
TempoSection* t;
if ((t = dynamic_cast<TempoSection*> (*i)) != 0) {
if ((prev_ts) && t->frame() > frame) {
if ((prev_ts) && t->frame() > frame_off) {
/* this is the one past frame */
double const ret = prev_ts->tempo_at_frame (frame, _frame_rate);
double const ret = prev_ts->tempo_at_frame (frame_off, _frame_rate);
Tempo const ret_tempo (ret, prev_ts->note_type());
return ret_tempo;
}
@@ -2376,7 +2379,7 @@ const MeterSection&
TempoMap::meter_section_at (framepos_t frame) const
{
Glib::Threads::RWLock::ReaderLock lm (lock);
framepos_t const frame_off = frame + frame_offset_at (_metrics, frame);
Metrics::const_iterator i;
MeterSection* prev = 0;
@@ -2385,7 +2388,7 @@ TempoMap::meter_section_at (framepos_t frame) const
if ((t = dynamic_cast<MeterSection*> (*i)) != 0) {
if ((*i)->frame() > frame) {
if ((*i)->frame() > frame_off) {
break;
}
@@ -2433,7 +2436,9 @@ TempoMap::meter_section_at (double beat) const
const Meter&
TempoMap::meter_at (framepos_t frame) const
{
TempoMetric m (metric_at (frame));
framepos_t const frame_off = frame + frame_offset_at (_metrics, frame);
TempoMetric m (metric_at (frame_off));
return m.meter();
}