Paul Davis
db67064296
git-svn-id: svn://localhost/ardour2/branches/3.0@7199 d708f5d6-7413-0410-9779-e7cbd77b26cf
271 lines
8.7 KiB
C++
271 lines
8.7 KiB
C++
/* This file is part of Evoral.
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* Copyright (C) 2008 Dave Robillard <http://drobilla.net>
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* Copyright (C) 2000-2008 Paul Davis
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*
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* Evoral is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef EVORAL_SEQUENCE_HPP
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#define EVORAL_SEQUENCE_HPP
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#include <vector>
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#include <queue>
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#include <set>
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#include <utility>
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#include <boost/shared_ptr.hpp>
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#include <glibmm/thread.h>
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#include "evoral/types.hpp"
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#include "evoral/Note.hpp"
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#include "evoral/Parameter.hpp"
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#include "evoral/ControlSet.hpp"
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#include "evoral/ControlList.hpp"
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namespace Evoral {
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class TypeMap;
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template<typename Time> class EventSink;
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template<typename Time> class Note;
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template<typename Time> class Event;
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/** An iterator over (the x axis of) a 2-d double coordinate space.
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*/
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class ControlIterator {
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public:
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ControlIterator(boost::shared_ptr<const ControlList> al, double ax, double ay)
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: list(al)
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, x(ax)
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, y(ay)
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{}
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boost::shared_ptr<const ControlList> list;
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double x;
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double y;
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};
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/** This is a higher level view of events, with separate representations for
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* notes (instead of just unassociated note on/off events) and controller data.
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* Controller data is represented as a list of time-stamped float values. */
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template<typename Time>
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class Sequence : virtual public ControlSet {
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public:
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Sequence(const TypeMap& type_map);
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Sequence(const Sequence<Time>& other);
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protected:
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struct WriteLockImpl {
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WriteLockImpl(Glib::RWLock& s, Glib::Mutex& c)
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: sequence_lock(new Glib::RWLock::WriterLock(s))
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, control_lock(new Glib::Mutex::Lock(c))
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{ }
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~WriteLockImpl() {
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delete sequence_lock;
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delete control_lock;
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}
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Glib::RWLock::WriterLock* sequence_lock;
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Glib::Mutex::Lock* control_lock;
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};
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public:
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typedef boost::shared_ptr<Glib::RWLock::ReaderLock> ReadLock;
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typedef boost::shared_ptr<WriteLockImpl> WriteLock;
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virtual ReadLock read_lock() const { return ReadLock(new Glib::RWLock::ReaderLock(_lock)); }
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virtual WriteLock write_lock() { return WriteLock(new WriteLockImpl(_lock, _control_lock)); }
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void clear();
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bool percussive() const { return _percussive; }
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void set_percussive(bool p) { _percussive = p; }
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void start_write();
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bool writing() const { return _writing; }
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void end_write(bool delete_stuck=false);
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void append(const Event<Time>& ev);
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inline size_t n_notes() const { return _notes.size(); }
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inline bool empty() const { return _notes.size() == 0 && ControlSet::controls_empty(); }
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inline static bool note_time_comparator(const boost::shared_ptr< const Note<Time> >& a,
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const boost::shared_ptr< const Note<Time> >& b) {
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return a->time() < b->time();
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}
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struct NoteNumberComparator {
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inline bool operator()(const boost::shared_ptr< const Note<Time> > a,
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const boost::shared_ptr< const Note<Time> > b) const {
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return a->note() < b->note();
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}
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};
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struct EarlierNoteComparator {
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inline bool operator()(const boost::shared_ptr< const Note<Time> > a,
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const boost::shared_ptr< const Note<Time> > b) const {
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return a->time() < b->time();
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}
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};
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struct LaterNoteComparator {
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typedef const Note<Time>* value_type;
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inline bool operator()(const boost::shared_ptr< const Note<Time> > a,
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const boost::shared_ptr< const Note<Time> > b) const {
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return a->time() > b->time();
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}
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};
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struct LaterNoteEndComparator {
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typedef const Note<Time>* value_type;
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inline bool operator()(const boost::shared_ptr< const Note<Time> > a,
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const boost::shared_ptr< const Note<Time> > b) const {
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return a->end_time() > b->end_time();
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}
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};
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typedef std::multiset<boost::shared_ptr< Note<Time> >, EarlierNoteComparator> Notes;
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inline Notes& notes() { return _notes; }
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inline const Notes& notes() const { return _notes; }
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enum NoteOperator {
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PitchEqual,
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PitchLessThan,
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PitchLessThanOrEqual,
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PitchGreater,
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PitchGreaterThanOrEqual,
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VelocityEqual,
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VelocityLessThan,
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VelocityLessThanOrEqual,
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VelocityGreater,
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VelocityGreaterThanOrEqual,
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};
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void get_notes (Notes&, NoteOperator, uint8_t val, int chan_mask = 0) const;
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void remove_overlapping_notes ();
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void remove_duplicate_notes ();
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void set_notes (const Sequence<Time>::Notes& n);
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typedef std::vector< boost::shared_ptr< Event<Time> > > SysExes;
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inline SysExes& sysexes() { return _sysexes; }
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inline const SysExes& sysexes() const { return _sysexes; }
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private:
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typedef std::priority_queue< boost::shared_ptr< Note<Time> >,
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std::deque< boost::shared_ptr< Note<Time> > >,
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LaterNoteEndComparator >
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ActiveNotes;
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public:
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/** Read iterator */
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class const_iterator {
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public:
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const_iterator();
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const_iterator(const Sequence<Time>& seq, Time t);
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~const_iterator();
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inline bool valid() const { return !_is_end && _event; }
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//inline bool locked() const { return _locked; }
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void invalidate();
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const Event<Time>& operator*() const { return *_event; }
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const boost::shared_ptr< Event<Time> > operator->() const { return _event; }
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const boost::shared_ptr< Event<Time> > get_event_pointer() { return _event; }
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const const_iterator& operator++(); // prefix only
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bool operator==(const const_iterator& other) const;
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bool operator!=(const const_iterator& other) const { return ! operator==(other); }
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const_iterator& operator=(const const_iterator& other);
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private:
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friend class Sequence<Time>;
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typedef std::vector<ControlIterator> ControlIterators;
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enum MIDIMessageType { NIL, NOTE_ON, NOTE_OFF, CONTROL, SYSEX };
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const Sequence<Time>* _seq;
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boost::shared_ptr< Event<Time> > _event;
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mutable ActiveNotes _active_notes;
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MIDIMessageType _type;
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bool _is_end;
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typename Sequence::ReadLock _lock;
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typename Notes::const_iterator _note_iter;
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typename SysExes::const_iterator _sysex_iter;
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ControlIterators _control_iters;
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ControlIterators::iterator _control_iter;
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};
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const_iterator begin(Time t=0) const { return const_iterator(*this, t); }
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const const_iterator& end() const { return _end_iter; }
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typename Notes::const_iterator note_lower_bound (Time t) const;
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bool control_to_midi_event(boost::shared_ptr< Event<Time> >& ev,
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const ControlIterator& iter) const;
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bool edited() const { return _edited; }
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void set_edited(bool yn) { _edited = yn; }
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bool overlaps (const boost::shared_ptr< Note<Time> > ev) const;
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bool contains (const boost::shared_ptr< Note<Time> > ev) const;
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bool add_note_unlocked(const boost::shared_ptr< Note<Time> > note);
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void remove_note_unlocked(const boost::shared_ptr< const Note<Time> > note);
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uint8_t lowest_note() const { return _lowest_note; }
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uint8_t highest_note() const { return _highest_note; }
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protected:
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bool _edited;
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mutable Glib::RWLock _lock;
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private:
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friend class const_iterator;
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bool overlaps_unlocked (const boost::shared_ptr< Note<Time> > ev) const;
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bool contains_unlocked (const boost::shared_ptr< Note<Time> > ev) const;
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void append_note_on_unlocked(uint8_t chan, Time time, uint8_t note, uint8_t velocity);
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void append_note_off_unlocked(uint8_t chan, Time time, uint8_t note, uint8_t velocity);
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void append_control_unlocked(const Parameter& param, Time time, double value);
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void append_sysex_unlocked(const MIDIEvent<Time>& ev);
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const TypeMap& _type_map;
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Notes _notes;
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SysExes _sysexes;
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typedef std::multiset<boost::shared_ptr< Note<Time> >, EarlierNoteComparator> WriteNotes;
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WriteNotes _write_notes[16];
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bool _writing;
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typedef std::vector< boost::shared_ptr<const ControlList> > ControlLists;
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ControlLists _dirty_controls;
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const const_iterator _end_iter;
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bool _percussive;
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uint8_t _lowest_note;
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uint8_t _highest_note;
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};
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} // namespace Evoral
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#endif // EVORAL_SEQUENCE_HPP
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