1 /* This file is part of Evoral.
2 * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
3 * Copyright (C) 2000-2008 Paul Davis
5 * Evoral is free software; you can redistribute it and/or modify it under the
6 * terms of the GNU General Public License as published by the Free Software
7 * Foundation; either version 2 of the License, or (at your option) any later
10 * Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
11 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef EVORAL_SEQUENCE_HPP
20 #define EVORAL_SEQUENCE_HPP
27 #include <boost/shared_ptr.hpp>
28 #include <boost/utility.hpp>
29 #include <glibmm/thread.h>
30 #include <evoral/types.hpp>
31 #include <evoral/Note.hpp>
32 #include <evoral/Parameter.hpp>
33 #include <evoral/ControlSet.hpp>
42 /** This class keeps track of the current x and y for a control
44 class ControlIterator {
46 boost::shared_ptr<const ControlList> list;
50 ControlIterator(boost::shared_ptr<const ControlList> a_list,
60 /** This is a higher level view of events, with separate representations for
61 * notes (instead of just unassociated note on/off events) and controller data.
62 * Controller data is represented as a list of time-stamped float values.
64 class Sequence : public boost::noncopyable, virtual public ControlSet {
66 Sequence(size_t size);
71 void read_lock() const;
72 void read_unlock() const;
76 bool percussive() const { return _percussive; }
77 void set_percussive(bool p) { _percussive = p; }
80 bool writing() const { return _writing; }
81 void end_write(bool delete_stuck=false);
83 size_t read(EventSink& dst,
86 timestamp_t stamp_offset) const;
88 /** Resizes vector if necessary (NOT realtime safe) */
89 void append(const Event& ev);
91 inline const boost::shared_ptr<const Note> note_at(unsigned i) const { return _notes[i]; }
92 inline const boost::shared_ptr<Note> note_at(unsigned i) { return _notes[i]; }
94 inline size_t n_notes() const { return _notes.size(); }
95 inline bool empty() const { return _notes.size() == 0 && _controls.size() == 0; }
97 inline static bool note_time_comparator(const boost::shared_ptr<const Note> a,
98 const boost::shared_ptr<const Note> b) {
99 return a->time() < b->time();
102 struct LaterNoteEndComparator {
103 typedef const Note* value_type;
104 inline bool operator()(const boost::shared_ptr<const Note> a,
105 const boost::shared_ptr<const Note> b) const {
106 return a->end_time() > b->end_time();
110 typedef std::vector< boost::shared_ptr<Note> > Notes;
111 inline Notes& notes() { return _notes; }
112 inline const Notes& notes() const { return _notes; }
115 class const_iterator {
117 const_iterator(const Sequence& seq, double t);
120 inline bool locked() const { return _locked; }
122 const Event& operator*() const { return *_event; }
123 const boost::shared_ptr<Event> operator->() const { return _event; }
124 const boost::shared_ptr<Event> get_event_pointer() { return _event; }
126 const const_iterator& operator++(); // prefix only
127 bool operator==(const const_iterator& other) const;
128 bool operator!=(const const_iterator& other) const { return ! operator==(other); }
130 const_iterator& operator=(const const_iterator& other);
133 friend class Sequence;
135 const Sequence* _seq;
136 boost::shared_ptr<Event> _event;
138 typedef std::priority_queue< boost::shared_ptr<Note>,
139 std::deque< boost::shared_ptr<Note> >,
140 LaterNoteEndComparator >
143 mutable ActiveNotes _active_notes;
147 Notes::const_iterator _note_iter;
148 std::vector<ControlIterator> _control_iters;
149 std::vector<ControlIterator>::iterator _control_iter;
152 const_iterator begin() const { return const_iterator(*this, 0); }
153 const const_iterator& end() const { return _end_iter; }
155 bool control_to_midi_event(boost::shared_ptr<Event>& ev,
156 const ControlIterator& iter) const;
158 typedef std::map< Parameter, boost::shared_ptr<Control> > Controls;
159 Controls& controls() { return _controls; }
160 const Controls& controls() const { return _controls; }
162 bool edited() const { return _edited; }
163 void set_edited(bool yn) { _edited = yn; }
166 void add_note_unlocked(const boost::shared_ptr<Note> note);
167 void remove_note_unlocked(const boost::shared_ptr<const Note> note);
169 mutable const_iterator _read_iter;
172 bool is_sorted() const;
176 friend class const_iterator;
178 void append_note_on_unlocked(uint8_t chan, double time, uint8_t note, uint8_t velocity);
179 void append_note_off_unlocked(uint8_t chan, double time, uint8_t note);
180 void append_control_unlocked(Parameter param, double time, double value);
182 mutable Glib::RWLock _lock;
187 typedef std::vector<size_t> WriteNotes;
188 WriteNotes _write_notes[16];
191 typedef std::vector< boost::shared_ptr<const ControlList> > ControlLists;
192 ControlLists _dirty_controls;
194 const const_iterator _end_iter;
195 mutable nframes_t _next_read;
198 /** FIXME: Make fully dynamic, map to URIs */
206 typedef std::priority_queue<
207 boost::shared_ptr<Note>, std::deque< boost::shared_ptr<Note> >,
208 LaterNoteEndComparator>
212 } // namespace Evoral
214 #endif // EVORAL_SEQUENCE_HPP