David Robillard
166ef64e3d
git-svn-id: svn://localhost/ardour2/branches/3.0@4473 d708f5d6-7413-0410-9779-e7cbd77b26cf
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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Copyright (C) 2004 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <pbd/basename.h>
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#include <ardour/types.h>
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#include <ardour/quantize.h>
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#include <ardour/session.h>
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#include <ardour/smf_source.h>
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#include <ardour/midi_region.h>
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#include <ardour/tempo.h>
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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/** Quantize notes, valid for MIDI regions only.
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*
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* Q is the quantize value in beats, ie 1.0 = quantize to beats,
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* 0.25 = quantize to beats/4, etc.
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*/
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Quantize::Quantize (Session& s, double q)
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: Filter (s)
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, _q(q)
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{
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}
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Quantize::~Quantize ()
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{
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}
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int
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Quantize::run (boost::shared_ptr<Region> r)
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{
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boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(r);
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if (!region)
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return -1;
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// FIXME: how to make a whole file region if it isn't?
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//assert(region->whole_file());
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boost::shared_ptr<MidiSource> src = region->midi_source(0);
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src->load_model();
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boost::shared_ptr<MidiModel> model = src->model();
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// FIXME: Model really needs to be switched to beat time (double) ASAP
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const Tempo& t = session.tempo_map().tempo_at(r->start());
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const Meter& m = session.tempo_map().meter_at(r->start());
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double q_frames = _q * (m.frames_per_bar(t, session.frame_rate()) / (double)m.beats_per_bar());
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for (Evoral::Sequence<MidiModel::TimeType>::Notes::iterator i = model->notes().begin();
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i != model->notes().end(); ++i) {
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const double new_time = lrint((*i)->time() / q_frames) * q_frames;
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double new_dur = lrint((*i)->length() / q_frames) * q_frames;
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if (new_dur == 0.0)
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new_dur = q_frames;
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(*i)->set_time(new_time);
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(*i)->set_length(new_dur);
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}
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model->set_edited(true);
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return 0;
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}
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