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Replace thinning static state with parameter.

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This commit is contained in:
David Robillard
2014-11-30 22:18:18 -05:00
parent b68fd1cc25
commit 7eb4e5d22b
4 changed files with 47 additions and 57 deletions
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22
libs/evoral/evoral/ControlList.hpp
View File

@@ -131,7 +131,20 @@ public:
bool move_ranges (std::list< RangeMove<double> > const &);
void modify (iterator, double, double);
void thin ();
/** Thin the number of events in this list.
*
* The thinning factor has no units but corresponds to the area of a
* triangle 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 triangle formed by three of them), we will
* not include it in the list. The larger the value, the more points are
* excluded, so this effectively measures the amount of thinning to be
* done.
*/
void thin (double thinning_factor);
boost::shared_ptr<ControlList> cut (double, double);
boost::shared_ptr<ControlList> copy (double, double);
@@ -245,7 +258,7 @@ public:
virtual bool writing() const { return false; }
virtual bool touch_enabled() const { return false; }
void start_write_pass (double time);
void write_pass_finished (double when);
void write_pass_finished (double when, double thinning_factor=0.0);
void set_in_write_pass (bool, bool add_point = false, double when = 0.0);
bool in_write_pass () const;
@@ -254,9 +267,6 @@ public:
/** Emitted when our interpolation style changes */
PBD::Signal1<void, InterpolationStyle> InterpolationChanged;
static void set_thinning_factor (double d);
static double thinning_factor() { return _thinning_factor; }
bool operator!= (ControlList const &) const;
void invalidate_insert_iterator ();
@@ -291,8 +301,6 @@ protected:
Curve* _curve;
static double _thinning_factor;
private:
iterator most_recent_insert_iterator;
double insert_position;

34
libs/evoral/src/ControlList.cpp
View File

@@ -36,22 +36,6 @@ inline bool event_time_less_than (ControlEvent* a, ControlEvent* b)
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)
, _interpolation(id.toggled() ? Discrete : Linear)
@@ -258,8 +242,12 @@ struct ControlEventTimeComparator {
};
void
ControlList::thin ()
ControlList::thin (double thinning_factor)
{
if (thinning_factor == 0.0) {
return;
}
bool changed = false;
{
@@ -287,7 +275,7 @@ ControlList::thin ()
(prev->when * (cur->value - prevprev->value)) +
(cur->when * (prevprev->value - prev->value)));
if (area < _thinning_factor) {
if (area < thinning_factor) {
iterator tmp = pprev;
/* pprev will change to current
@@ -364,12 +352,12 @@ ControlList::start_write_pass (double when)
}
void
ControlList::write_pass_finished (double /*when*/)
ControlList::write_pass_finished (double /*when*/, double thinning_factor)
{
DEBUG_TRACE (DEBUG::ControlList, "write pass finished\n");
if (did_write_during_pass) {
thin ();
thin (thinning_factor);
did_write_during_pass = false;
}
new_write_pass = true;
@@ -1738,12 +1726,6 @@ ControlList::set_interpolation (InterpolationStyle s)
InterpolationChanged (s); /* EMIT SIGNAL */
}
void
ControlList::set_thinning_factor (double v)
{
_thinning_factor = v;
}
bool
ControlList::operator!= (ControlList const & other) const
{