2 Copyright (C) 2000-2006 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 $Id: midiregion.h 733 2006-08-01 17:19:38Z drobilla $
21 #ifndef __ardour_midi_region_h__
22 #define __ardour_midi_region_h__
26 #include "evoral/Beats.hpp"
27 #include "evoral/Range.hpp"
29 #include "ardour/ardour.h"
30 #include "ardour/region.h"
35 namespace Properties {
36 LIBARDOUR_API extern PBD::PropertyDescriptor<Evoral::Beats> start_beats;
37 LIBARDOUR_API extern PBD::PropertyDescriptor<Evoral::Beats> length_beats;
42 template<typename Time> class EventSink;
47 class MidiChannelFilter;
51 class MidiStateTracker;
56 template<typename T> class MidiRingBuffer;
58 class LIBARDOUR_API MidiRegion : public Region
61 static void make_property_quarks ();
65 bool do_export (std::string path) const;
67 boost::shared_ptr<MidiRegion> clone (std::string path = std::string()) const;
68 boost::shared_ptr<MidiRegion> clone (boost::shared_ptr<MidiSource>) const;
70 boost::shared_ptr<MidiSource> midi_source (uint32_t n=0) const;
72 /* Stub Readable interface */
73 virtual framecnt_t read (Sample*, framepos_t /*pos*/, framecnt_t /*cnt*/, int /*channel*/) const { return 0; }
74 virtual framecnt_t readable_length() const { return length(); }
76 framecnt_t read_at (Evoral::EventSink<framepos_t>& dst,
79 Evoral::Range<framepos_t>* loop_range,
81 NoteMode mode = Sustained,
82 MidiStateTracker* tracker = 0,
83 MidiChannelFilter* filter = 0) const;
85 framecnt_t master_read_at (MidiRingBuffer<framepos_t>& dst,
88 Evoral::Range<framepos_t>* loop_range,
90 NoteMode mode = Sustained) const;
93 int set_state (const XMLNode&, int version);
95 int separate_by_channel (ARDOUR::Session&, std::vector< boost::shared_ptr<Region> >&) const;
99 boost::shared_ptr<Evoral::Control> control(const Evoral::Parameter& id, bool create=false);
101 virtual boost::shared_ptr<const Evoral::Control> control(const Evoral::Parameter& id) const;
105 boost::shared_ptr<MidiModel> model();
106 boost::shared_ptr<const MidiModel> model() const;
108 void fix_negative_start ();
109 Evoral::Beats start_beats () {return _start_beats.val(); }
110 void set_start_beats (const Evoral::Beats start_beats) {_start_beats = start_beats; }
111 Evoral::Beats length_beats () {return _length_beats.val(); }
112 void set_length_beats (const Evoral::Beats length_beats) {_length_beats = length_beats; }
114 void clobber_sources (boost::shared_ptr<MidiSource> source);
118 virtual bool can_trim_start_before_source_start () const {
123 friend class RegionFactory;
124 PBD::Property<Evoral::Beats> _start_beats;
125 PBD::Property<Evoral::Beats> _length_beats;
127 MidiRegion (const SourceList&);
128 MidiRegion (boost::shared_ptr<const MidiRegion>);
129 MidiRegion (boost::shared_ptr<const MidiRegion>, frameoffset_t offset, const int32_t sub_num = 0);
131 framecnt_t _read_at (const SourceList&, Evoral::EventSink<framepos_t>& dst,
134 Evoral::Range<framepos_t>* loop_range,
136 NoteMode mode = Sustained,
137 MidiStateTracker* tracker = 0,
138 MidiChannelFilter* filter = 0) const;
140 void register_properties ();
141 void post_set (const PBD::PropertyChange&);
143 void recompute_at_start ();
144 void recompute_at_end ();
146 void set_position_internal (framepos_t pos, bool allow_bbt_recompute, const int32_t sub_num);
147 void set_length_internal (framecnt_t len, const int32_t sub_num);
148 void set_start_internal (framecnt_t, const int32_t sub_num);
149 void trim_to_internal (framepos_t position, framecnt_t length, const int32_t sub_num);
150 void update_length_beats (const int32_t sub_num);
152 void model_changed ();
153 void model_automation_state_changed (Evoral::Parameter const &);
155 void set_start_beats_from_start_frames ();
156 void update_after_tempo_map_change (bool send_change = true);
158 std::set<Evoral::Parameter> _filtered_parameters; ///< parameters that we ask our source not to return when reading
159 PBD::ScopedConnection _model_connection;
160 PBD::ScopedConnection _source_connection;
161 PBD::ScopedConnection _model_contents_connection;
163 double _last_length_beats;
166 } /* namespace ARDOUR */
169 #endif /* __ardour_midi_region_h__ */