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/*
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#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 "i18n.h"
using namespace std;
using namespace ARDOUR;
/** Quantize notes, valid for MIDI regions only.
*
* Q is 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 ()
{
}
int
Quantize::run (boost::shared_ptr<Region> r)
{
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();
for (Evoral::Sequence<MidiModel::TimeType>::Notes::iterator i = model->notes().begin();
i != model->notes().end(); ++i) {
const double new_time = lrint((*i)->time() / _q) * _q;
double new_dur = lrint((*i)->length() / _q) * _q;
if (new_dur == 0.0)
new_dur = _q;
(*i)->set_time(new_time);
(*i)->set_length(new_dur);
}
model->set_edited(true);
return 0;
}
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