158 lines
4.7 KiB
C++
158 lines
4.7 KiB
C++
/*
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Copyright (C) 2000-2006 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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$Id: midiregion.h 733 2006-08-01 17:19:38Z drobilla $
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*/
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#ifndef __ardour_midi_region_h__
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#define __ardour_midi_region_h__
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#include <vector>
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#include "ardour/ardour.h"
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#include "ardour/region.h"
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class XMLNode;
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namespace ARDOUR {
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namespace Properties {
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/* this is pseudo-property: nothing has this as an actual
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property, but it allows us to signal changes to the
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MidiModel used by the MidiRegion
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*/
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LIBARDOUR_API extern PBD::PropertyDescriptor<void*> midi_data;
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LIBARDOUR_API extern PBD::PropertyDescriptor<Evoral::MusicalTime> start_beats;
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LIBARDOUR_API extern PBD::PropertyDescriptor<Evoral::MusicalTime> length_beats;
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}
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}
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namespace Evoral {
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template<typename Time> class EventSink;
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}
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namespace ARDOUR {
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class Route;
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class Playlist;
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class Session;
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class MidiFilter;
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class MidiModel;
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class MidiSource;
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class MidiStateTracker;
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template<typename T> class MidiRingBuffer;
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class LIBARDOUR_API MidiRegion : public Region
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{
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public:
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static void make_property_quarks ();
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~MidiRegion();
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boost::shared_ptr<MidiRegion> clone (std::string path = std::string()) const;
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boost::shared_ptr<MidiSource> midi_source (uint32_t n=0) const;
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/* Stub Readable interface */
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virtual framecnt_t read (Sample*, framepos_t /*pos*/, framecnt_t /*cnt*/, int /*channel*/) const { return 0; }
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virtual framecnt_t readable_length() const { return length(); }
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framecnt_t read_at (Evoral::EventSink<framepos_t>& dst,
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framepos_t position,
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framecnt_t dur,
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uint32_t chan_n = 0,
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NoteMode mode = Sustained,
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MidiStateTracker* tracker = 0) const;
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framecnt_t master_read_at (MidiRingBuffer<framepos_t>& dst,
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framepos_t position,
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framecnt_t dur,
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uint32_t chan_n = 0,
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NoteMode mode = Sustained) const;
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XMLNode& state ();
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int set_state (const XMLNode&, int version);
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int separate_by_channel (ARDOUR::Session&, std::vector< boost::shared_ptr<Region> >&) const;
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/* automation */
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boost::shared_ptr<Evoral::Control> control(const Evoral::Parameter& id, bool create=false);
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virtual boost::shared_ptr<const Evoral::Control> control(const Evoral::Parameter& id) const;
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/* export */
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boost::shared_ptr<MidiModel> model();
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boost::shared_ptr<const MidiModel> model() const;
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void fix_negative_start ();
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void transpose (int);
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protected:
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virtual bool can_trim_start_before_source_start () const {
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return true;
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}
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private:
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friend class RegionFactory;
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PBD::Property<Evoral::MusicalTime> _start_beats;
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PBD::Property<Evoral::MusicalTime> _length_beats;
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MidiRegion (const SourceList&);
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MidiRegion (boost::shared_ptr<const MidiRegion>);
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MidiRegion (boost::shared_ptr<const MidiRegion>, frameoffset_t offset);
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framecnt_t _read_at (const SourceList&, Evoral::EventSink<framepos_t>& dst,
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framepos_t position,
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framecnt_t dur,
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uint32_t chan_n = 0,
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NoteMode mode = Sustained,
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MidiStateTracker* tracker = 0) const;
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void register_properties ();
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void post_set (const PBD::PropertyChange&);
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void recompute_at_start ();
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void recompute_at_end ();
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void set_position_internal (framepos_t pos, bool allow_bbt_recompute);
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void set_length_internal (framecnt_t len);
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void set_start_internal (framecnt_t);
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void update_length_beats ();
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void model_changed ();
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void model_automation_state_changed (Evoral::Parameter const &);
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void model_contents_changed ();
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void set_start_beats_from_start_frames ();
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void update_after_tempo_map_change ();
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std::set<Evoral::Parameter> _filtered_parameters; ///< parameters that we ask our source not to return when reading
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PBD::ScopedConnection _model_connection;
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PBD::ScopedConnection _source_connection;
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PBD::ScopedConnection _model_contents_connection;
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double _last_length_beats;
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};
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} /* namespace ARDOUR */
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#endif /* __ardour_midi_region_h__ */
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