/*
- Copyright (C) 2004 Paul Davis
+ Copyright (C) 2004 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "pbd/basename.h"
-#include "ardour/types.h"
#include "ardour/quantize.h"
-#include "ardour/session.h"
-#include "ardour/smf_source.h"
#include "ardour/midi_model.h"
-#include "ardour/midi_region.h"
-#include "ardour/tempo.h"
#include "i18n.h"
* 0.25 = quantize to beats/4, etc.
*/
-Quantize::Quantize (Session& s, QuantizeType /* type */,
- bool snap_start, bool snap_end,
- double start_grid, double end_grid,
+Quantize::Quantize (bool snap_start, bool snap_end,
+ double start_grid, double end_grid,
float strength, float swing, float threshold)
- : session (s)
- , _snap_start (snap_start)
+ : _snap_start (snap_start)
, _snap_end (snap_end)
, _start_grid(start_grid)
, _end_grid(end_grid)
}
Command*
-Quantize::operator () (boost::shared_ptr<MidiModel> model, std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>& seqs)
+Quantize::operator () (boost::shared_ptr<MidiModel> model,
+ Evoral::MusicalTime position,
+ std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>& seqs)
{
+ /* TODO: Rewrite this to be precise with fixed point? */
+
+ /* Calculate offset from start of model to next closest quantize step,
+ to quantize relative to actual session beats (etc.) rather than from the
+ start of the model.
+ */
+ const double round_pos = round(position.to_double() / _start_grid) * _start_grid;
+ const double offset = round_pos - position.to_double();
+
bool even;
- MidiModel::DiffCommand* cmd = new MidiModel::DiffCommand (model, "quantize");
+ MidiModel::NoteDiffCommand* cmd = new MidiModel::NoteDiffCommand (model, "quantize");
for (std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>::iterator s = seqs.begin(); s != seqs.end(); ++s) {
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;
- double new_end = round ((*i)->end_time() / _end_grid) * _end_grid;
- double delta;
-
+
+ double new_start = round (((*i)->time().to_double() - offset) / _start_grid) * _start_grid + offset;
+ double new_end = round (((*i)->end_time().to_double() - offset) / _end_grid) * _end_grid + offset;
+
if (_swing > 0.0 && !even) {
-
+
double next_grid = new_start + _start_grid;
-
+
/* find a spot 2/3 (* swing factor) of the way between the grid point
we would put this note at, and the nominal position of the next note.
*/
-
+
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) {
-
+
double prev_grid = new_start - _start_grid;
-
+
/* find a spot 2/3 (* swing factor) of the way between the grid point
we would put this note at, and the nominal position of the previous note.
*/
-
+
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));
+
}
-
- delta = new_start - (*i)->time();
-
+
+ double delta = new_start - (*i)->time().to_double();
+
if (fabs (delta) >= _threshold) {
if (_snap_start) {
delta *= _strength;
- cmd->change ((*i), MidiModel::DiffCommand::StartTime,
- (*i)->time() + delta);
+ cmd->change ((*i), MidiModel::NoteDiffCommand::StartTime,
+ (*i)->time() + delta);
}
}
-
+
if (_snap_end) {
- delta = new_end - (*i)->end_time();
-
+ delta = new_end - (*i)->end_time().to_double();
+
if (fabs (delta) >= _threshold) {
- double new_dur = new_end - new_start;
-
- if (new_dur == 0.0) {
- new_dur = _end_grid;
+ Evoral::MusicalTime new_dur(new_end - new_start);
+
+ if (!new_dur) {
+ new_dur = Evoral::MusicalTime(_end_grid);
}
-
- cmd->change ((*i), MidiModel::DiffCommand::Length, new_dur);
+
+ cmd->change ((*i), MidiModel::NoteDiffCommand::Length, new_dur);
}
}
-
+
even = !even;
}
}