Use nframes_t for timestamps of real (jack) time MIDI events (i.e. in MidiBuffer...

[ardour.git] / libs / ardour / ardour / midi_source.h

diff --git a/libs/ardour/ardour/midi_source.h b/libs/ardour/ardour/midi_source.h
index 5504db6ab6ed589b58164ff6d5bae33ba39f693e..2126b4b162324740b9844a0c0d27c0573b6282e5 100644 (file)
--- a/libs/ardour/ardour/midi_source.h
+++ b/libs/ardour/ardour/midi_source.h
@@ -30,6 +30,8 @@
 
 #include <ardour/source.h>
 #include <ardour/ardour.h>
+#include <ardour/buffer.h>
+#include <ardour/midi_model.h>
 #include <pbd/stateful.h>
 #include <pbd/xml++.h>
 
@@ -37,21 +39,38 @@ using std::string;
 
 namespace ARDOUR {
 
-class MidiRingBuffer;
+template<typename T> class MidiRingBuffer;
 
 /** Source for MIDI data */
 class MidiSource : public Source
 {
   public:
+       typedef double TimeType;
+
        MidiSource (Session& session, string name);
        MidiSource (Session& session, const XMLNode&);
        virtual ~MidiSource ();
        
-       virtual nframes_t read (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset) const;
-       virtual nframes_t write (MidiRingBuffer& src, nframes_t cnt);
+       /* Stub Readable interface */
+       virtual nframes64_t read (Sample*, nframes64_t pos, nframes64_t cnt, int channel) const { return 0; }
+       virtual nframes64_t readable_length() const { return length(); }
+       virtual uint32_t    n_channels () const { return 1; }
+       
+       // FIXME: integrate this with the Readable::read interface somehow
+       virtual nframes_t midi_read (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset, nframes_t negative_stamp_offset) const;
+       virtual nframes_t midi_write (MidiRingBuffer<nframes_t>& src, nframes_t cnt);
+
+       virtual void append_event_unlocked(EventTimeUnit unit, const Evoral::Event<TimeType>& ev) = 0;
 
        virtual void mark_for_remove() = 0;
-       virtual void mark_streaming_write_completed () {}
+       virtual void mark_streaming_midi_write_started (NoteMode mode, nframes_t start_time);
+       virtual void mark_streaming_write_started ();
+       virtual void mark_streaming_write_completed ();
+       
+       uint64_t timeline_position ()                   { return _timeline_position; }
+       void     set_timeline_position (nframes_t when) { _timeline_position = when; }
+       
+       virtual void session_saved();
 
        string captured_for() const { return _captured_for; }
        void   set_captured_for (string str) { _captured_for = str; }
@@ -61,23 +80,40 @@ class MidiSource : public Source
 
        static sigc::signal<void,MidiSource*> MidiSourceCreated;
               
-       // The MIDI equivalent to "peaks"
-       static int  start_view_data_thread ();
-       static void stop_view_data_thread ();
+       // Signal a range of recorded data is available for reading from model()
        mutable sigc::signal<void,nframes_t,nframes_t> ViewDataRangeReady;
        
        XMLNode& get_state ();
        int set_state (const XMLNode&);
+       
+       bool length_mutable() const { return true; }
+
+       virtual void load_model(bool lock=true, bool force_reload=false) = 0;
+       virtual void destroy_model() = 0;
+
+       void set_note_mode(NoteMode mode) { if (_model) _model->set_note_mode(mode); }
+
+       boost::shared_ptr<MidiModel> model() { return _model; }
+       void set_model(boost::shared_ptr<MidiModel> m) { _model = m; }
 
   protected:
-       virtual nframes_t read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset) const = 0;
-       virtual nframes_t write_unlocked (MidiRingBuffer& dst, nframes_t cnt) = 0;
+       virtual void flush_midi() = 0;
+       
+       virtual nframes_t read_unlocked (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset, nframes_t negative_stamp_offset) const = 0;
+       virtual nframes_t write_unlocked (MidiRingBuffer<nframes_t>& dst, nframes_t cnt) = 0;
        
        mutable Glib::Mutex _lock;
        string              _captured_for;
+       uint64_t            _timeline_position;
        mutable uint32_t    _read_data_count;  ///< modified in read()
        mutable uint32_t    _write_data_count; ///< modified in write()
 
+       boost::shared_ptr<MidiModel> _model;
+       bool                         _writing;
+       
+       mutable Evoral::Sequence<double>::const_iterator _model_iter;
+       mutable nframes_t                                _last_read_end;
+
   private:
        bool file_changed (string path);
 };