limit automation event density - fixes #5928
Constrain control points to one per tick (1/1920 beats). Prior to this it was possible to set two values to the same time (interpolation and iteration failed).
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@ -39,6 +39,7 @@
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#include "ardour/automation_list.h"
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#include "ardour/dB.h"
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#include "ardour/debug.h"
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#include "ardour/tempo.h"
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#include "evoral/Curve.hpp"
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@ -520,11 +521,12 @@ AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine
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}
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void
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AutomationLine::ContiguousControlPoints::compute_x_bounds ()
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AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
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{
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uint32_t sz = size();
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if (sz > 0 && sz < line.npoints()) {
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const TempoMap& map (e.session()->tempo_map());
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/* determine the limits on x-axis motion for this
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contiguous range of control points
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@ -532,14 +534,28 @@ AutomationLine::ContiguousControlPoints::compute_x_bounds ()
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if (front()->view_index() > 0) {
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before_x = line.nth (front()->view_index() - 1)->get_x();
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const framepos_t pos = e.pixel_to_sample(before_x);
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const Meter& meter = map.meter_at (pos);
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const framecnt_t len = ceil(meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate()) / 1920.0 / meter.divisions_per_bar());
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const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
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before_x += one_tick_in_pixels;
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}
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/* if our last point has a point after it in the line,
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we have an "after" bound
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*/
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if (back()->view_index() < (line.npoints() - 2)) {
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if (back()->view_index() < (line.npoints() - 1)) {
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after_x = line.nth (back()->view_index() + 1)->get_x();
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const framepos_t pos = e.pixel_to_sample(after_x);
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const Meter& meter = map.meter_at (pos);
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const framecnt_t len = ceil(meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate()) / 1920.0 / meter.divisions_per_bar());
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const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
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after_x -= one_tick_in_pixels;
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}
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}
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}
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@ -643,7 +659,7 @@ AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool
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}
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for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
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(*ccp)->compute_x_bounds ();
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(*ccp)->compute_x_bounds (trackview.editor());
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}
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}
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@ -47,6 +47,7 @@ class TimeAxisView;
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class AutomationTimeAxisView;
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class Selectable;
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class Selection;
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class PublicEditor;
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/** A GUI representation of an ARDOUR::AutomationList */
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@ -183,7 +184,7 @@ public:
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ContiguousControlPoints (AutomationLine& al);
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double clamp_dx (double dx);
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void move (double dx, double dy);
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void compute_x_bounds ();
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void compute_x_bounds (PublicEditor& e);
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private:
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AutomationLine& line;
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double before_x;
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@ -1446,7 +1446,13 @@ ControlList::rt_safe_earliest_event_linear_unlocked (double start, double& x, do
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assert(inclusive ? x >= start : x > start);
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return true;
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} else {
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return false;
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if (inclusive) {
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x = next->when;
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} else {
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x = start;
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}
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_search_cache.left = x;
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return true;
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}
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/* No points in the future, so no steps (towards them) in the future */
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