Merge branch 'master' into cairocanvas
[ardour.git] / libs / ardour / ardour / midi_model.h
index ea915d0a45d5971174815d4283ca4125da3e6bfd..dc1c7af0e9796daf97c14a29e06f567543bbbea7 100644 (file)
@@ -1,6 +1,6 @@
 /*
     Copyright (C) 2007 Paul Davis
-    Author: Dave Robillard
+    Author: David Robillard
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
 
 */
 
-#ifndef __ardour_midi_model_h__ 
+#ifndef __ardour_midi_model_h__
 #define __ardour_midi_model_h__
 
 #include <queue>
 #include <deque>
 #include <utility>
 #include <boost/utility.hpp>
-#include <glibmm/thread.h>
-#include <pbd/command.h>
-#include <ardour/types.h>
-#include <ardour/midi_buffer.h>
-#include <ardour/midi_ring_buffer.h>
-#include <ardour/automatable.h>
-#include <ardour/note.h>
-#include <ardour/types.h>
+#include <glibmm/threads.h>
+#include "pbd/command.h"
+#include "ardour/libardour_visibility.h"
+#include "ardour/types.h"
+#include "ardour/midi_buffer.h"
+#include "ardour/midi_ring_buffer.h"
+#include "ardour/automatable_sequence.h"
+#include "ardour/libardour_visibility.h"
+#include "ardour/types.h"
+#include "evoral/Note.hpp"
+#include "evoral/Sequence.hpp"
 
 namespace ARDOUR {
 
 class Session;
 class MidiSource;
-       
-
-class MidiControlIterator {
-public:
-       boost::shared_ptr<const AutomationList> automation_list;
-       double x;
-       double y;
-       
-       MidiControlIterator(boost::shared_ptr<const AutomationList> a_list,
-                       double a_x,
-                       double a_y)
-               : automation_list(a_list)
-               , x(a_x)
-               , y(a_y)
-       {}
-};
-
 
 /** This is a higher level (than MidiBuffer) model of MIDI data, with separate
  * representations for notes (instead of just unassociated note on/off events)
  * and controller data.  Controller data is represented as part of the
  * Automatable base (i.e. in a map of AutomationList, keyed by Parameter).
+ * Because of this MIDI controllers and automatable controllers/widgets/etc
+ * are easily interchangeable.
  */
-class MidiModel : public boost::noncopyable, public Automatable {
+class LIBARDOUR_API MidiModel : public AutomatableSequence<Evoral::MusicalTime> {
 public:
-       MidiModel(MidiSource *s,  size_t size=0);
-       
-       void write_lock();
-       void write_unlock();
+       typedef Evoral::MusicalTime TimeType;
 
-       void read_lock()   const;
-       void read_unlock() const;
+       MidiModel (boost::shared_ptr<MidiSource>);
 
-       void clear();
+       NoteMode note_mode() const { return (percussive() ? Percussive : Sustained); }
+       void set_note_mode(NoteMode mode) { set_percussive(mode == Percussive); };
 
-       NoteMode note_mode() const            { return _note_mode; }
-       void     set_note_mode(NoteMode mode) { _note_mode = mode; }
+       class LIBARDOUR_API DiffCommand : public Command {
+       public:
 
-       void start_write();
-       bool writing() const { return _writing; }
-       void end_write(bool delete_stuck=false);
+               DiffCommand (boost::shared_ptr<MidiModel> m, const std::string& name);
 
-       size_t read (MidiRingBuffer& dst, nframes_t start, nframes_t nframes, nframes_t stamp_offset, nframes_t negative_stamp_offset) const;
+               const std::string& name () const { return _name; }
 
-       /** Resizes vector if necessary (NOT realtime safe) */
-       void append(const MIDI::Event& ev);
-       
-       inline const boost::shared_ptr<const Note> note_at(unsigned i) const { return _notes[i]; }
-       inline const boost::shared_ptr<Note>       note_at(unsigned i)       { return _notes[i]; }
+               virtual void operator() () = 0;
+               virtual void undo () = 0;
 
-       inline size_t n_notes() const { return _notes.size(); }
-       inline bool   empty()   const { return _notes.size() == 0 && _controls.size() == 0; }
+               virtual int set_state (const XMLNode&, int version) = 0;
+               virtual XMLNode & get_state () = 0;
 
-       
-       inline static bool note_time_comparator (const boost::shared_ptr<const Note> a,
-                                                const boost::shared_ptr<const Note> b) { 
-               return a->time() < b->time();
-       }
+               boost::shared_ptr<MidiModel> model() const { return _model; }
 
-       struct LaterNoteEndComparator {
-               typedef const Note* value_type;
-               inline bool operator()(const boost::shared_ptr<const Note> a,
-                                      const boost::shared_ptr<const Note> b) const { 
-                       return a->end_time() > b->end_time();
-               }
-       };
+       protected:
+               boost::shared_ptr<MidiModel> _model;
+               const std::string            _name;
 
-       typedef std::vector< boost::shared_ptr<Note> > Notes;
-       inline       Notes& notes()       { return _notes; }
-       inline const Notes& notes() const { return _notes; }
+       };
 
-       /** Add/Remove notes.
-        * Technically all operations can be implemented as one of these.
-        */
-       class DeltaCommand : public Command
-       {
+       class LIBARDOUR_API NoteDiffCommand : public DiffCommand {
        public:
-               DeltaCommand (boost::shared_ptr<MidiModel> m, const std::string& name);
-               DeltaCommand (boost::shared_ptr<MidiModel>,   const XMLNode& node);
 
-               const std::string& name() const { return _name; }
-               
-               void operator()();
-               void undo();
-               
-               int set_state (const XMLNode&);
-               XMLNode& get_state ();
+               NoteDiffCommand (boost::shared_ptr<MidiModel> m, const std::string& name) : DiffCommand (m, name) {}
+               NoteDiffCommand (boost::shared_ptr<MidiModel> m, const XMLNode& node);
+
+               enum Property {
+                       NoteNumber,
+                       Velocity,
+                       StartTime,
+                       Length,
+                       Channel
+               };
+
+               void operator() ();
+               void undo ();
+
+               int set_state (const XMLNode&, int version);
+               XMLNode & get_state ();
+
+               void add (const NotePtr note);
+               void remove (const NotePtr note);
+               void side_effect_remove (const NotePtr note);
+
+               void change (const NotePtr note, Property prop, uint8_t new_value);
+               void change (const NotePtr note, Property prop, TimeType new_time);
+
+               bool adds_or_removes() const {
+                       return !_added_notes.empty() || !_removed_notes.empty();
+               }
 
-               void add(const boost::shared_ptr<Note> note);
-               void remove(const boost::shared_ptr<Note> note);
+               NoteDiffCommand& operator+= (const NoteDiffCommand& other);
 
        private:
-               XMLNode &marshal_note(const boost::shared_ptr<Note> note);
-               boost::shared_ptr<Note> unmarshal_note(XMLNode *xml_note);
-               
-               boost::shared_ptr<MidiModel>         _model;
-               const std::string                    _name;
-               
-               typedef std::list< boost::shared_ptr<Note> > NoteList;
-               
+               struct NoteChange {
+                       NoteDiffCommand::Property property;
+                       NotePtr note;
+                       uint32_t note_id; 
+                   
+                       union {
+                               uint8_t  old_value;
+                               TimeType old_time;
+                       };
+                       union {
+                               uint8_t  new_value;
+                               TimeType new_time;
+                       };
+               };
+
+               typedef std::list<NoteChange> ChangeList;
+               ChangeList _changes;
+
+               typedef std::list< boost::shared_ptr< Evoral::Note<TimeType> > > NoteList;
                NoteList _added_notes;
                NoteList _removed_notes;
+
+               std::set<NotePtr> side_effect_removals;
+
+               XMLNode &marshal_change(const NoteChange&);
+               NoteChange unmarshal_change(XMLNode *xml_note);
+
+               XMLNode &marshal_note(const NotePtr note);
+               NotePtr unmarshal_note(XMLNode *xml_note);
        };
 
-       MidiModel::DeltaCommand* new_delta_command(const std::string name="midi edit");
-       void                     apply_command(Command* cmd);
+       /* Currently this class only supports changes of sys-ex time, but could be expanded */
+       class LIBARDOUR_API SysExDiffCommand : public DiffCommand {
+       public:
+               SysExDiffCommand (boost::shared_ptr<MidiModel> m, const XMLNode& node);
+
+               enum Property {
+                       Time,
+               };
+
+               int set_state (const XMLNode&, int version);
+               XMLNode & get_state ();
 
-       bool edited() const { return _edited; }
-       void set_edited(bool yn) { _edited = yn; }
+               void remove (SysExPtr sysex);
+               void operator() ();
+               void undo ();
+
+               void change (boost::shared_ptr<Evoral::Event<TimeType> >, TimeType);
+
+       private:
+               struct Change {
+                       boost::shared_ptr<Evoral::Event<TimeType> > sysex;
+                       gint sysex_id;
+                       SysExDiffCommand::Property property;
+                       TimeType old_time;
+                       TimeType new_time;
+               };
+
+               typedef std::list<Change> ChangeList;
+               ChangeList _changes;
+
+               std::list<SysExPtr> _removed;
+
+               XMLNode & marshal_change (const Change &);
+               Change unmarshal_change (XMLNode *);
+       };
+
+       class LIBARDOUR_API PatchChangeDiffCommand : public DiffCommand {
+       public:
+               PatchChangeDiffCommand (boost::shared_ptr<MidiModel>, const std::string &);
+               PatchChangeDiffCommand (boost::shared_ptr<MidiModel>, const XMLNode &);
+
+               int set_state (const XMLNode &, int version);
+               XMLNode & get_state ();
+
+               void operator() ();
+               void undo ();
+
+               void add (PatchChangePtr);
+               void remove (PatchChangePtr);
+               void change_time (PatchChangePtr, TimeType);
+               void change_channel (PatchChangePtr, uint8_t);
+               void change_program (PatchChangePtr, uint8_t);
+               void change_bank (PatchChangePtr, int);
+
+               enum Property {
+                       Time,
+                       Channel,
+                       Program,
+                       Bank
+               };
+
+       private:
+               struct Change {
+                       PatchChangePtr patch;
+                       Property       property;
+                       gint           patch_id;
+                       union {
+                               TimeType   old_time;
+                               uint8_t    old_channel;
+                               int        old_bank;
+                               uint8_t    old_program;
+                       };
+                       union {
+                               uint8_t    new_channel;
+                               TimeType   new_time;
+                               uint8_t    new_program;
+                               int        new_bank;
+                       };
+
+                   Change() : patch_id (-1) {}
+               };
+
+               typedef std::list<Change> ChangeList;
+               ChangeList _changes;
+
+               std::list<PatchChangePtr> _added;
+               std::list<PatchChangePtr> _removed;
+
+               XMLNode & marshal_change (const Change &);
+               Change unmarshal_change (XMLNode *);
+
+               XMLNode & marshal_patch_change (constPatchChangePtr);
+               PatchChangePtr unmarshal_patch_change (XMLNode *);
+       };
+
+       MidiModel::NoteDiffCommand* new_note_diff_command (const std::string name = "midi edit");
+       MidiModel::SysExDiffCommand* new_sysex_diff_command (const std::string name = "midi edit");
+       MidiModel::PatchChangeDiffCommand* new_patch_change_diff_command (const std::string name = "midi edit");
+       void apply_command (Session& session, Command* cmd);
+       void apply_command_as_subcommand (Session& session, Command* cmd);
+
+       bool sync_to_source ();
        bool write_to(boost::shared_ptr<MidiSource> source);
-               
-       // MidiModel doesn't use the normal AutomationList serialisation code, as CC data is in the .mid
+       bool write_section_to (boost::shared_ptr<MidiSource> source, Evoral::MusicalTime begin = Evoral::MinMusicalTime,
+       Evoral::MusicalTime end = Evoral::MaxMusicalTime);
+
+       // MidiModel doesn't use the normal AutomationList serialisation code
+       // since controller data is stored in the .mid
        XMLNode& get_state();
        int set_state(const XMLNode&) { return 0; }
 
-       sigc::signal<void> ContentsChanged;
-       
-       /** Read iterator */
-       class const_iterator {
-       public:
-               const_iterator(const MidiModel& model, double t);
-               ~const_iterator();
+       PBD::Signal0<void> ContentsChanged;
 
-               inline bool locked() const { return _locked; }
+       boost::shared_ptr<const MidiSource> midi_source ();
+       void set_midi_source (boost::shared_ptr<MidiSource>);
 
-               const MIDI::Event& operator*()  const { return _event; }
-               const MIDI::Event* operator->() const { return &_event; }
+       boost::shared_ptr<Evoral::Note<TimeType> > find_note (NotePtr);
+       PatchChangePtr find_patch_change (Evoral::event_id_t);
+       boost::shared_ptr<Evoral::Note<TimeType> > find_note (gint note_id);
+       boost::shared_ptr<Evoral::Event<TimeType> > find_sysex (gint);
 
-               const const_iterator& operator++(); // prefix only
-               bool operator==(const const_iterator& other) const;
-               bool operator!=(const const_iterator& other) const { return ! operator==(other); }
-               
-               const_iterator& operator=(const const_iterator& other);
+       InsertMergePolicy insert_merge_policy () const;
+       void set_insert_merge_policy (InsertMergePolicy);
 
-       private:
-               friend class MidiModel;
-
-               const MidiModel* _model;
-               MIDI::Event      _event;
-
-               typedef std::priority_queue<
-                               boost::shared_ptr<Note>, std::deque< boost::shared_ptr<Note> >,
-                               LaterNoteEndComparator>
-                       ActiveNotes;
-               
-               mutable ActiveNotes _active_notes;
-
-               bool                                       _is_end;
-               bool                                       _locked;
-               Notes::const_iterator                      _note_iter;
-               std::vector<MidiControlIterator>           _control_iters;
-               std::vector<MidiControlIterator>::iterator _control_iter;
+       boost::shared_ptr<Evoral::Control> control_factory(const Evoral::Parameter& id);
+
+       void insert_silence_at_start (TimeType);
+       void transpose (TimeType, TimeType, int);
+
+protected:
+       int resolve_overlaps_unlocked (const NotePtr, void* arg = 0);
+
+private:
+       struct WriteLockImpl : public AutomatableSequence<TimeType>::WriteLockImpl {
+               WriteLockImpl(Glib::Threads::Mutex::Lock* slock, Glib::Threads::RWLock& s, Glib::Threads::Mutex& c)
+                       : AutomatableSequence<TimeType>::WriteLockImpl(s, c)
+                       , source_lock (slock)
+               {}
+               ~WriteLockImpl() {
+                       delete source_lock;
+               }
+               Glib::Threads::Mutex::Lock* source_lock;
        };
-       
-       const_iterator        begin() const { return const_iterator(*this, 0); }
-       const const_iterator& end()   const { return _end_iter; }
-       
-       const MidiSource* midi_source() const { return _midi_source; }
-       void set_midi_source(MidiSource* source) { _midi_source = source; } 
-       
+
+public:
+       WriteLock edit_lock();
+       WriteLock write_lock();
+
 private:
        friend class DeltaCommand;
-       void add_note_unlocked(const boost::shared_ptr<Note> note);
-       void remove_note_unlocked(const boost::shared_ptr<const Note> note);
-
-       friend class const_iterator;
-       bool control_to_midi_event(MIDI::Event& ev, const MidiControlIterator& iter) const;
-
-#ifndef NDEBUG
-       bool is_sorted() const;
-#endif
-
-       void append_note_on_unlocked(uint8_t chan, double time, uint8_t note, uint8_t velocity);
-       void append_note_off_unlocked(uint8_t chan, double time, uint8_t note);
-       void append_automation_event_unlocked(AutomationType type, uint8_t chan, double time, uint8_t first_byte, uint8_t second_byte);
-       void append_pgm_change_unlocked(uint8_t chan, double time, uint8_t number); 
-
-       mutable Glib::RWLock _lock;
-
-       Notes _notes;
-       
-       NoteMode _note_mode;
-       
-       typedef std::vector<size_t> WriteNotes;
-       WriteNotes _write_notes[16];
-       bool       _writing;
-       bool       _edited;
-       
-       typedef std::vector< boost::shared_ptr<const ARDOUR::AutomationList> > AutomationLists;
-       AutomationLists _dirty_automations;
-
-       const const_iterator _end_iter;
-
-       mutable nframes_t      _next_read;
-       mutable const_iterator _read_iter;
-
-       typedef std::priority_queue<
-                       boost::shared_ptr<Note>, std::deque< boost::shared_ptr<Note> >,
-                       LaterNoteEndComparator>
-               ActiveNotes;
-       
+
+       void source_interpolation_changed (Evoral::Parameter, Evoral::ControlList::InterpolationStyle);
+       void source_automation_state_changed (Evoral::Parameter, AutoState);
+       void control_list_interpolation_changed (Evoral::Parameter, Evoral::ControlList::InterpolationStyle);
+       void automation_list_automation_state_changed (Evoral::Parameter, AutoState);
+
+       void control_list_marked_dirty ();
+
+       PBD::ScopedConnectionList _midi_source_connections;
+
        // We cannot use a boost::shared_ptr here to avoid a retain cycle
-       MidiSource* _midi_source;
+       boost::weak_ptr<MidiSource> _midi_source;
+       InsertMergePolicy _insert_merge_policy;
 };
 
 } /* namespace ARDOUR */
 
+/* This is a very long comment and stuff oh my god it's so long what are we going to do oh no oh no*/
+
 #endif /* __ardour_midi_model_h__ */