/*
- 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
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <cmath>
-#include <pbd/basename.h>
+#include "pbd/basename.h"
-#include <ardour/types.h>
-#include <ardour/quantize.h>
-#include <ardour/session.h>
-#include <ardour/smf_source.h>
-#include <ardour/midi_region.h>
-#include <ardour/tempo.h>
+#include "ardour/quantize.h"
+#include "ardour/midi_model.h"
#include "i18n.h"
using namespace std;
+using namespace PBD;
using namespace ARDOUR;
-
-/** Quantize notes, valid for MIDI regions only.
+/** Quantize notes
*
- * Q is the quantize value in beats, ie 1.0 = quantize to beats,
+ * grid parameters are the quantize value in beats, ie 1.0 = quantize to beats,
* 0.25 = quantize to beats/4, etc.
*/
-Quantize::Quantize (Session& s, double q)
- : Filter (s)
- , _q(q)
+
+Quantize::Quantize (Session& s, 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_end (snap_end)
+ , _start_grid(start_grid)
+ , _end_grid(end_grid)
+ , _strength (strength/100.0)
+ , _swing (swing/100.0)
+ , _threshold (threshold)
{
}
{
}
-int
-Quantize::run (boost::shared_ptr<Region> r)
+Command*
+Quantize::operator () (boost::shared_ptr<MidiModel> model,
+ double position,
+ std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>& seqs)
{
- boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(r);
- if (!region)
- return -1;
-
- // FIXME: how to make a whole file region if it isn't?
- //assert(region->whole_file());
-
- boost::shared_ptr<MidiSource> src = region->midi_source(0);
- src->load_model();
-
- boost::shared_ptr<MidiModel> model = src->model();
-
- // FIXME: Model really needs to be switched to beat time (double) ASAP
-
- const Tempo& t = session.tempo_map().tempo_at(r->start());
- const Meter& m = session.tempo_map().meter_at(r->start());
-
- double q_frames = _q * (m.frames_per_bar(t, session.frame_rate()) / (double)m.beats_per_bar());
-
- for (MidiModel::Notes::iterator i = model->notes().begin(); i != model->notes().end(); ++i) {
- const double new_time = lrint(i->time() / q_frames) * q_frames;
- const double new_dur = ((i->time() != 0 && new_dur < (q_frames * 1.5))
- ? q_frames
- : lrint(i->duration() / q_frames) * q_frames);
-
- i->set_time(new_time);
- i->set_duration(new_dur);
- }
+ /* 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 = ceil(position / _start_grid) * _start_grid;
+ const double offset = round_pos - position;
- return 0;
-#if 0
- SourceList nsrcs;
- SourceList::iterator si;
- nframes_t blocksize = 256 * 1024;
- Sample* buf = 0;
- nframes_t fpos;
- nframes_t fstart;
- nframes_t to_read;
- int ret = -1;
-
- boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(r);
- if (!region)
- return ret;
-
- /* create new sources */
-
- if (make_new_sources (region, nsrcs)) {
- goto out;
- }
+ bool even;
+ MidiModel::NoteDiffCommand* cmd = new MidiModel::NoteDiffCommand (model, "quantize");
- fstart = region->start();
+ for (std::vector<Evoral::Sequence<Evoral::MusicalTime>::Notes>::iterator s = seqs.begin(); s != seqs.end(); ++s) {
- if (blocksize > region->length()) {
- blocksize = region->length();
- }
+ even = false;
- fpos = max (fstart, (fstart + region->length() - blocksize));
- buf = new Sample[blocksize];
- to_read = blocksize;
+ for (Evoral::Sequence<MidiModel::TimeType>::Notes::iterator i = (*s).begin(); i != (*s).end(); ++i) {
- /* now read it backwards */
+ double new_start = round ((*i)->time() / _start_grid) * _start_grid + offset;
+ double new_end = round ((*i)->end_time() / _end_grid) * _end_grid + offset;
- while (to_read) {
+ if (_swing > 0.0 && !even) {
- uint32_t n;
+ double next_grid = new_start + _start_grid;
- for (n = 0, si = nsrcs.begin(); n < region->n_channels(); ++n, ++si) {
+ /* 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.
+ */
- /* read it in */
-
- if (region->audio_source (n)->read (buf, fpos, to_read) != to_read) {
- goto out;
- }
+ new_start = new_start + (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));
- /* swap memory order */
-
- for (nframes_t i = 0; i < to_read/2; ++i) {
- swap (buf[i],buf[to_read-1-i]);
}
-
- /* write it out */
- boost::shared_ptr<AudioSource> asrc(boost::dynamic_pointer_cast<AudioSource>(*si));
+ double delta = new_start - (*i)->time();
- if (asrc && asrc->write (buf, to_read) != to_read) {
- goto out;
+ if (fabs (delta) >= _threshold) {
+ if (_snap_start) {
+ delta *= _strength;
+ cmd->change ((*i), MidiModel::NoteDiffCommand::StartTime,
+ (*i)->time() + delta);
+ }
}
- }
- if (fpos > fstart + blocksize) {
- fpos -= to_read;
- to_read = blocksize;
- } else {
- to_read = fpos - fstart;
- fpos = fstart;
- }
- };
+ if (_snap_end) {
+ delta = new_end - (*i)->end_time();
- ret = finish (region, nsrcs);
+ if (fabs (delta) >= _threshold) {
+ double new_dur = new_end - new_start;
- out:
+ if (new_dur == 0.0) {
+ new_dur = _end_grid;
+ }
- if (buf) {
- delete [] buf;
- }
+ cmd->change ((*i), MidiModel::NoteDiffCommand::Length, new_dur);
+ }
+ }
- if (ret) {
- for (si = nsrcs.begin(); si != nsrcs.end(); ++si) {
- boost::shared_ptr<AudioSource> asrc(boost::dynamic_pointer_cast<AudioSource>(*si));
- asrc->mark_for_remove ();
+ even = !even;
}
}
-
- return ret;
-#endif
+
+ return cmd;
}
projects / ardour.git / blobdiff