/* This file is part of Evoral.
- * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright (C) 2008 David Robillard <http://drobilla.net>
* Copyright (C) 2000-2008 Paul Davis
*
* Evoral is free software; you can redistribute it and/or modify it under the
return a->when < b->when;
}
+/* this has no units but corresponds to the area of a rectangle
+ computed between three points in the list. If the area is
+ large, it indicates significant non-linearity between the
+ points.
+
+ during automation recording we thin the recorded points
+ using this value. if a point is sufficiently co-linear
+ with its neighbours (as defined by the area of the rectangle
+ formed by three of them), we will not include it in the
+ ControlList. a smaller value will exclude less points,
+ a larger value will exclude more points, so it effectively
+ measures the amount of thinning to be done.
+*/
+
+double ControlList::_thinning_factor = 20.0;
ControlList::ControlList (const Parameter& id)
: _parameter(id)
_changed_when_thawed = false;
_min_yval = id.min();
_max_yval = id.max();
- _max_xval = 0; // means "no limit"
_default_value = 0;
_lookup_cache.left = -1;
_lookup_cache.range.first = _events.end();
_changed_when_thawed = false;
_min_yval = other._min_yval;
_max_yval = other._max_yval;
- _max_xval = other._max_xval;
_default_value = other._default_value;
_lookup_cache.range.first = _events.end();
_search_cache.first = _events.end();
_changed_when_thawed = false;
_min_yval = other._min_yval;
_max_yval = other._max_yval;
- _max_xval = other._max_xval;
_default_value = other._default_value;
_lookup_cache.range.first = _events.end();
_search_cache.first = _events.end();
for (EventList::iterator x = _events.begin(); x != _events.end(); ++x) {
delete (*x);
}
-
+
for (list<NascentInfo*>::iterator n = nascent.begin(); n != nascent.end(); ++n) {
- for (EventList::iterator x = (*n)->events.begin(); x != (*n)->events.end(); ++x) {
- delete *x;
- }
+ for (EventList::iterator x = (*n)->events.begin(); x != (*n)->events.end(); ++x) {
+ delete *x;
+ }
delete (*n);
}
_min_yval = other._min_yval;
_max_yval = other._max_yval;
- _max_xval = other._max_xval;
_default_value = other._default_value;
mark_dirty ();
return true;
}
-void
+void
ControlList::_x_scale (double factor)
{
for (iterator i = _events.begin(); i != _events.end(); ++i) {
- (*i)->when = floor ((*i)->when * factor);
+ (*i)->when *= factor;
}
mark_dirty ();
void
ControlList::write_pass_finished (double when)
{
- merge_nascent (when);
+ merge_nascent (when);
}
+
+struct ControlEventTimeComparator {
+ bool operator() (ControlEvent* a, ControlEvent* b) {
+ return a->when < b->when;
+ }
+};
+
void
ControlList::merge_nascent (double when)
{
- {
- Glib::Mutex::Lock lm (_lock);
-
- if (nascent.empty()) {
- return;
- }
-
- for (list<NascentInfo*>::iterator n = nascent.begin(); n != nascent.end(); ++n) {
-
- NascentInfo* ninfo = *n;
- EventList& nascent_events (ninfo->events);
- bool need_adjacent_start_clamp;
- bool need_adjacent_end_clamp;
-
- if (nascent_events.empty()) {
- delete ninfo;
- continue;
- }
-
- if (ninfo->start_time < 0.0) {
- ninfo->start_time = nascent_events.front()->when;
- }
-
- if (ninfo->end_time < 0.0) {
- ninfo->end_time = when;
- }
-
- bool preexisting = !_events.empty();
-
- if (!preexisting) {
-
- _events = nascent_events;
-
- } else if (ninfo->end_time < _events.front()->when) {
-
- /* all points in nascent are before the first existing point */
-
- _events.insert (_events.begin(), nascent_events.begin(), nascent_events.end());
-
- } else if (ninfo->start_time > _events.back()->when) {
-
- /* all points in nascent are after the last existing point */
-
- _events.insert (_events.end(), nascent_events.begin(), nascent_events.end());
-
- } else {
-
- /* find the range that overaps with nascent events,
- and insert the contents of nascent events.
- */
-
- iterator i;
- iterator range_begin = _events.end();
- iterator range_end = _events.end();
- double end_value = unlocked_eval (ninfo->end_time);
- double start_value = unlocked_eval (ninfo->start_time - 1);
-
- need_adjacent_end_clamp = true;
- need_adjacent_start_clamp = true;
-
- for (i = _events.begin(); i != _events.end(); ++i) {
-
- if ((*i)->when == ninfo->start_time) {
- /* existing point at same time, remove it
- and the consider the next point instead.
- */
- i = _events.erase (i);
-
- if (i == _events.end()) {
- break;
- }
-
- if (range_begin == _events.end()) {
- range_begin = i;
- need_adjacent_start_clamp = false;
- } else {
- need_adjacent_end_clamp = false;
- }
-
- if ((*i)->when > ninfo->end_time) {
- range_end = i;
- break;
- }
-
- } else if ((*i)->when > ninfo->start_time) {
-
- if (range_begin == _events.end()) {
- range_begin = i;
- }
-
- if ((*i)->when > ninfo->end_time) {
- range_end = i;
- break;
- }
- }
- }
-
- assert (range_begin != _events.end());
-
- if (range_begin != _events.begin()) {
- /* clamp point before */
- if (need_adjacent_start_clamp) {
- _events.insert (range_begin, new ControlEvent (ninfo->start_time, start_value));
- }
- }
-
- _events.insert (range_begin, nascent_events.begin(), nascent_events.end());
-
- if (range_end != _events.end()) {
- /* clamp point after */
- if (need_adjacent_end_clamp) {
- _events.insert (range_begin, new ControlEvent (ninfo->end_time, end_value));
- }
- }
-
- _events.erase (range_begin, range_end);
- }
-
- delete ninfo;
- }
-
- nascent.clear ();
-
- if (writing()) {
- nascent.push_back (new NascentInfo (false));
- }
- }
-
- maybe_signal_changed ();
+ {
+ Glib::Mutex::Lock lm (_lock);
+
+ if (nascent.empty()) {
+ return;
+ }
+
+ for (list<NascentInfo*>::iterator n = nascent.begin(); n != nascent.end(); ++n) {
+
+ NascentInfo* ninfo = *n;
+ EventList& nascent_events (ninfo->events);
+ bool need_adjacent_start_clamp;
+ bool need_adjacent_end_clamp;
+
+ if (nascent_events.empty()) {
+ delete ninfo;
+ continue;
+ }
+
+ nascent_events.sort (ControlEventTimeComparator ());
+
+ if (ninfo->start_time < 0.0) {
+ ninfo->start_time = nascent_events.front()->when;
+ }
+
+ if (ninfo->end_time < 0.0) {
+ ninfo->end_time = when;
+ }
+
+ bool preexisting = !_events.empty();
+
+ if (!preexisting) {
+
+ _events = nascent_events;
+
+ } else if (ninfo->end_time < _events.front()->when) {
+
+ /* all points in nascent are before the first existing point */
+
+ _events.insert (_events.begin(), nascent_events.begin(), nascent_events.end());
+
+ } else if (ninfo->start_time > _events.back()->when) {
+
+ /* all points in nascent are after the last existing point */
+
+ _events.insert (_events.end(), nascent_events.begin(), nascent_events.end());
+
+ } else {
+
+ /* find the range that overlaps with nascent events,
+ and insert the contents of nascent events.
+ */
+
+ iterator i;
+ iterator range_begin = _events.end();
+ iterator range_end = _events.end();
+ double end_value = unlocked_eval (ninfo->end_time);
+ double start_value = unlocked_eval (ninfo->start_time - 1);
+
+ need_adjacent_end_clamp = true;
+ need_adjacent_start_clamp = true;
+
+ for (i = _events.begin(); i != _events.end(); ++i) {
+
+ if ((*i)->when == ninfo->start_time) {
+ /* existing point at same time, remove it
+ and the consider the next point instead.
+ */
+ i = _events.erase (i);
+
+ if (i == _events.end()) {
+ break;
+ }
+
+ if (range_begin == _events.end()) {
+ range_begin = i;
+ need_adjacent_start_clamp = false;
+ } else {
+ need_adjacent_end_clamp = false;
+ }
+
+ if ((*i)->when > ninfo->end_time) {
+ range_end = i;
+ break;
+ }
+
+ } else if ((*i)->when > ninfo->start_time) {
+
+ if (range_begin == _events.end()) {
+ range_begin = i;
+ }
+
+ if ((*i)->when > ninfo->end_time) {
+ range_end = i;
+ break;
+ }
+ }
+ }
+
+ /* Now:
+ range_begin is the first event on our list after the first nascent event
+ range_end is the first event on our list after the last nascent event
+
+ range_begin may be equal to _events.end() iff the last event on our list
+ was at the same time as the first nascent event.
+ */
+
+ if (range_begin != _events.begin()) {
+ /* clamp point before */
+ if (need_adjacent_start_clamp) {
+ _events.insert (range_begin, new ControlEvent (ninfo->start_time, start_value));
+ }
+ }
+
+ _events.insert (range_begin, nascent_events.begin(), nascent_events.end());
+
+ if (range_end != _events.end()) {
+ /* clamp point after */
+ if (need_adjacent_end_clamp) {
+ _events.insert (range_begin, new ControlEvent (ninfo->end_time, end_value));
+ }
+ }
+
+ _events.erase (range_begin, range_end);
+ }
+
+ delete ninfo;
+ }
+
+ nascent.clear ();
+
+ if (writing()) {
+ nascent.push_back (new NascentInfo ());
+ }
+ }
+
+ maybe_signal_changed ();
}
void
ControlList::rt_add (double when, double value)
{
- // this is for automation recording
-
- if (touch_enabled() && !touching()) {
- return;
- }
+ // this is for automation recording
+
+ if (touch_enabled() && !touching()) {
+ return;
+ }
//cerr << "RT: alist " << this << " add " << value << " @ " << when << endl;
- Glib::Mutex::Lock lm (_lock, Glib::TRY_LOCK);
+ Glib::Mutex::Lock lm (_lock, Glib::TRY_LOCK);
+
+ if (lm.locked()) {
+ assert (!nascent.empty());
+ /* we don't worry about adding events out of time order as we will
+ sort them in merge_nascent.
+ */
+
+ EventList& el (nascent.back()->events);
+
+ if (el.size() > 1 && (when >= el.back()->when) && (value == el.back()->value)) {
+ /* same value, later timestamp, effective slope is
+ * zero, so just move the last point in nascent to our
+ * new time position. this avoids storing an unlimited
+ * number of points to represent a flat line.
+ */
+ el.back()->when = when;
+ } else {
+ nascent.back()->events.push_back (new ControlEvent (when, value));
+ }
+ }
+}
+
+void
+ControlList::thin ()
+{
+ Glib::Mutex::Lock lm (_lock);
+
+ ControlEvent* prevprev = 0;
+ ControlEvent* cur = 0;
+ ControlEvent* prev = 0;
+ iterator pprev;
+ int counter = 0;
+
+ for (iterator i = _events.begin(); i != _events.end(); ++i) {
+
+ cur = *i;
+ counter++;
+
+ if (counter > 2) {
+
+ double area = fabs ((prevprev->when * (prev->value - cur->value)) +
+ (prev->when * (cur->value - prevprev->value)) +
+ (cur->when * (prevprev->value - prev->value)));
+
+ if (area < _thinning_factor) {
+ iterator tmp = pprev;
+
+ /* pprev will change to current
+ i is incremented to the next event
+ */
+
+ pprev = i;
+ _events.erase (tmp);
- if (lm.locked()) {
- assert (!nascent.empty());
- if (!nascent.back()->events.empty()) {
- assert (when > nascent.back()->events.back()->when);
- }
- nascent.back()->events.push_back (new ControlEvent (when, value));
- }
+ continue;
+ }
+ }
+
+ prevprev = prev;
+ prev = cur;
+ pprev = i;
+ }
}
void
/* to be used only for loading pre-sorted data from saved state */
_events.insert (_events.end(), new ControlEvent (when, value));
assert(_events.back());
+
+ mark_dirty ();
}
void
ControlList::add (double when, double value)
{
- /* this is for making changes from some kind of user interface or
- control surface (GUI, MIDI, OSC etc)
- */
+ /* this is for making changes from some kind of user interface or
+ control surface (GUI, MIDI, OSC etc)
+ */
+
+ if (!clamp_value (when, value)) {
+ return;
+ }
{
Glib::Mutex::Lock lm (_lock);
maybe_signal_changed ();
}
+/** Erase the first event which matches the given time and value */
+void
+ControlList::erase (double when, double value)
+{
+ {
+ Glib::Mutex::Lock lm (_lock);
+
+ iterator i = begin ();
+ while (i != end() && ((*i)->when != when || (*i)->value != value)) {
+ ++i;
+ }
+
+ if (i != end ()) {
+ _events.erase (i);
+ }
+
+ mark_dirty ();
+ }
+
+ maybe_signal_changed ();
+}
+
void
ControlList::reset_range (double start, double endt)
{
(*before)->when += distance;
++before;
}
+
+ mark_dirty ();
+ }
+
+ maybe_signal_changed ();
+}
+
+void
+ControlList::shift (double pos, double frames)
+{
+ {
+ Glib::Mutex::Lock lm (_lock);
+
+ for (iterator i = _events.begin(); i != _events.end(); ++i) {
+ if ((*i)->when >= pos) {
+ (*i)->when += frames;
+ }
+ }
+
+ mark_dirty ();
}
maybe_signal_changed ();
(*iter)->when = when;
(*iter)->value = val;
- if (isnan (val)) {
+ if (std::isnan (val)) {
abort ();
}
return ret;
}
-void
-ControlList::set_max_xval (double x)
-{
- _max_xval = x;
-}
-
void
ControlList::freeze ()
{
if (last_coordinate > _events.back()->when) {
/* extending end:
- */
+ */
iterator foo = _events.begin();
bool lessthantwo;
return false;
}
- /* No points in range */
+ /* No points in range */
} else {
return false;
}
const_iterator length_check_iter = _events.begin();
if (_events.empty()) { // 0 events
return false;
- } else if (_events.end() == ++length_check_iter) { // 1 event
+ } else if (_events.end() == ++length_check_iter) { // 1 event
return rt_safe_earliest_event_discrete_unlocked (start, x, y, inclusive);
- }
+ }
// Hack to avoid infinitely repeating the same event
build_search_cache_if_necessary (start);
}
next = *_search_cache.first;
- /* Step is before first */
+ /* Step is before first */
} else {
const_iterator prev = _search_cache.first;
--prev;
}
/*cerr << first->value << " @ " << first->when << " ... "
- << next->value << " @ " << next->when
- << " = " << y << " @ " << x << endl;*/
+ << next->value << " @ " << next->when
+ << " = " << y << " @ " << x << endl;*/
assert( (y >= first->value && y <= next->value)
- || (y <= first->value && y >= next->value) );
+ || (y <= first->value && y >= next->value) );
const bool past_start = (inclusive ? x >= start : x > start);
return false;
}
- /* No points in the future, so no steps (towards them) in the future */
+ /* No points in the future, so no steps (towards them) in the future */
} else {
return false;
}
{
boost::shared_ptr<ControlList> nal = create (_parameter);
iterator s, e;
- ControlEvent cp (start, 0.0);
+ ControlEvent cp (start, 0.0);
{
- Glib::Mutex::Lock lm (_lock);
+ Glib::Mutex::Lock lm (_lock);
- /* first, determine s & e, two iterators that define the range of points
- affected by this operation
- */
+ /* first, determine s & e, two iterators that define the range of points
+ affected by this operation
+ */
if ((s = lower_bound (_events.begin(), _events.end(), &cp, time_comparator)) == _events.end()) {
return nal;
e = upper_bound (_events.begin(), _events.end(), &cp, time_comparator);
- /* if "start" isn't the location of an existing point,
- evaluate the curve to get a value for the start. Add a point to
- both the existing event list, and if its not a "clear" operation,
- to the copy ("nal") as well.
+ /* if "start" isn't the location of an existing point,
+ evaluate the curve to get a value for the start. Add a point to
+ both the existing event list, and if its not a "clear" operation,
+ to the copy ("nal") as well.
- Note that the time positions of the points in each list are different
- because we want the copy ("nal") to have a zero time reference.
- */
+ Note that the time positions of the points in each list are different
+ because we want the copy ("nal") to have a zero time reference.
+ */
-
- /* before we begin any cut/clear operations, get the value of the curve
- at "end".
- */
- double end_value = unlocked_eval (end);
+ /* before we begin any cut/clear operations, get the value of the curve
+ at "end".
+ */
- if ((*s)->when != start) {
-
- double val = unlocked_eval (start);
+ double end_value = unlocked_eval (end);
+
+ if ((*s)->when != start) {
+
+ double val = unlocked_eval (start);
if (op == 0) { // cut
if (start > _events.front()->when) {
_events.insert (s, (new ControlEvent (start, val)));
}
}
-
- if (op != 2) { // ! clear
- nal->_events.push_back (new ControlEvent (0, val));
- }
- }
+
+ if (op != 2) { // ! clear
+ nal->_events.push_back (new ControlEvent (0, val));
+ }
+ }
for (iterator x = s; x != e; ) {
/* adjust new points to be relative to start, which
has been set to zero.
*/
-
+
if (op != 2) {
nal->_events.push_back (new ControlEvent ((*x)->when - start, (*x)->value));
}
if (op != 1) {
x = _events.erase (x);
} else {
- ++x;
- }
+ ++x;
+ }
}
-
- if (e == _events.end() || (*e)->when != end) {
- /* only add a boundary point if there is a point after "end"
- */
+ if (e == _events.end() || (*e)->when != end) {
+
+ /* only add a boundary point if there is a point after "end"
+ */
- if (op == 0 && (e != _events.end() && end < (*e)->when)) { // cut
- _events.insert (e, new ControlEvent (end, end_value));
- }
+ if (op == 0 && (e != _events.end() && end < (*e)->when)) { // cut
+ _events.insert (e, new ControlEvent (end, end_value));
+ }
- if (op != 2 && (e != _events.end() && end < (*e)->when)) { // cut/copy
- nal->_events.push_back (new ControlEvent (end - start, end_value));
- }
+ if (op != 2 && (e != _events.end() && end < (*e)->when)) { // cut/copy
+ nal->_events.push_back (new ControlEvent (end - start, end_value));
+ }
}
- mark_dirty ();
+ mark_dirty ();
}
- if (op != 1) {
- maybe_signal_changed ();
- }
+ if (op != 1) {
+ maybe_signal_changed ();
+ }
return nal;
}
InterpolationChanged (s); /* EMIT SIGNAL */
}
+void
+ControlList::set_thinning_factor (double v)
+{
+ _thinning_factor = v;
+}
+
} // namespace Evoral
projects / ardour.git / blobdiff