refactor MIDISceneChange color property addition by moving it into SceneChange to...

[ardour.git] / libs / ardour / quantize.cc

diff --git a/libs/ardour/quantize.cc b/libs/ardour/quantize.cc
index a4543d773c75dd035fb3059171673561e837cb75..7da1edaaa18732695a64ab7d678f9e3f5ce917ac 100644 (file)
--- a/libs/ardour/quantize.cc
+++ b/libs/ardour/quantize.cc
@@ -62,7 +62,7 @@ Quantize::operator () (boost::shared_ptr<MidiModel> model,
           to quantize relative to actual session beats (etc.) rather than from the
           start of the model.
        */
-       const double round_pos = ceil(position / _start_grid) * _start_grid;
+       const double round_pos = round(position / _start_grid) * _start_grid;
        const double offset    = round_pos - position;
 
        bool even;
@@ -72,10 +72,13 @@ Quantize::operator () (boost::shared_ptr<MidiModel> model,
 
                even = false;
 
+               /* TODO 'swing' probably requires a 2nd iteration:
+                * first quantize notes to the grid, then apply beat shift
+                */
                for (Evoral::Sequence<MidiModel::TimeType>::Notes::iterator i = (*s).begin(); i != (*s).end(); ++i) {
 
-                       double new_start = round ((*i)->time() / _start_grid) * _start_grid + offset;
-                       double new_end = round ((*i)->end_time() / _end_grid) * _end_grid + offset;
+                       double new_start = round (((*i)->time() - offset) / _start_grid) * _start_grid + offset;
+                       double new_end = round (((*i)->end_time() - offset) / _end_grid) * _end_grid + offset;
 
                        if (_swing > 0.0 && !even) {
 
@@ -86,6 +89,7 @@ Quantize::operator () (boost::shared_ptr<MidiModel> model,
                                */
 
                                new_start = new_start + (2.0/3.0 * _swing * (next_grid - new_start));
+                               new_end = new_end + (2.0/3.0 * _swing * (next_grid - new_start));
 
                        } else if (_swing < 0.0 && !even) {
 
@@ -96,6 +100,7 @@ Quantize::operator () (boost::shared_ptr<MidiModel> model,
                                */
 
                                new_start = new_start - (2.0/3.0 * _swing * (new_start - prev_grid));
+                               new_end = new_end - (2.0/3.0 * _swing * (new_start - prev_grid));
 
                        }