/*
- Copyright (C) 2006 Paul Davis
+ Copyright (C) 2006 Paul Davis
Written by Dave Robillard, 2006
This program is free software; you can redistribute it and/or modify
#define __ardour_midi_source_h__
#include <string>
-
#include <time.h>
-
#include <glibmm/thread.h>
-
-#include <sigc++/signal.h>
-
-#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>
-
-using std::string;
+#include "pbd/stateful.h"
+#include "pbd/xml++.h"
+#include "evoral/Sequence.hpp"
+#include "ardour/ardour.h"
+#include "ardour/buffer.h"
+#include "ardour/source.h"
+#include "ardour/beats_frames_converter.h"
namespace ARDOUR {
-class MidiRingBuffer;
+class MidiStateTracker;
+class MidiModel;
+template<typename T> class MidiRingBuffer;
/** Source for MIDI data */
-class MidiSource : public Source
+class MidiSource : virtual public Source
{
public:
- MidiSource (Session& session, string name);
+ typedef double TimeType;
+
+ MidiSource (Session& session, std::string name, Source::Flag flags = Source::Flag(0));
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);
- virtual void mark_for_remove() = 0;
- virtual void mark_streaming_midi_write_started (NoteMode mode);
+ /** Read the data in a given time range from the MIDI source.
+ * All time stamps in parameters are in audio frames (even if the source has tempo time).
+ * \param dst Ring buffer where read events are written
+ * \param source_start Start position of the SOURCE in this read context
+ * \param start Start of range to be read
+ * \param cnt Length of range to be read (in audio frames)
+ * \param stamp_offset Offset to add to event times written to dst
+ * \param negative_stamp_offset Offset to subtract from event times written to dst
+ * \param tracker an optional pointer to MidiStateTracker object, for note on/off tracking
+ */
+ virtual nframes_t midi_read (Evoral::EventSink<nframes_t>& dst,
+ sframes_t source_start,
+ sframes_t start, nframes_t cnt,
+ sframes_t stamp_offset, sframes_t negative_stamp_offset, MidiStateTracker*) const;
+
+ virtual nframes_t midi_write (MidiRingBuffer<nframes_t>& src,
+ sframes_t source_start,
+ nframes_t cnt);
+
+ virtual void append_event_unlocked_beats(const Evoral::Event<Evoral::MusicalTime>& ev) = 0;
+
+ virtual void append_event_unlocked_frames(const Evoral::Event<nframes_t>& ev,
+ sframes_t source_start) = 0;
+
+ virtual sframes_t length (sframes_t pos) const;
+ virtual void update_length (sframes_t pos, sframes_t cnt);
+
+ virtual void mark_streaming_midi_write_started (NoteMode mode, sframes_t start_time);
virtual void mark_streaming_write_started ();
virtual void mark_streaming_write_completed ();
- string captured_for() const { return _captured_for; }
- void set_captured_for (string str) { _captured_for = str; }
+ virtual void session_saved();
+
+ std::string captured_for() const { return _captured_for; }
+ void set_captured_for (std::string str) { _captured_for = str; }
uint32_t read_data_count() const { return _read_data_count; }
uint32_t write_data_count() const { return _write_data_count; }
- static sigc::signal<void,MidiSource*> MidiSourceCreated;
-
- // The MIDI equivalent to "peaks" (but complete data)
- mutable sigc::signal<void,boost::shared_ptr<MidiBuffer>,nframes_t,nframes_t> ViewDataRangeReady;
-
+ static boost::signals2::signal<void(MidiSource*)> MidiSourceCreated;
+
+ // Signal a range of recorded data is available for reading from model()
+ mutable boost::signals2::signal<void(sframes_t,nframes_t)> ViewDataRangeReady;
+
XMLNode& get_state ();
- int set_state (const XMLNode&);
+ int set_state (const XMLNode&, int version);
+
+ 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); }
- virtual bool model_loaded() const { return _model_loaded; }
+ /** This must be called with the source lock held whenever the
+ * source/model contents have been changed (reset iterators/cache/etc).
+ */
+ void invalidate();
+
+ void set_note_mode(NoteMode mode);
- MidiModel* model() { return _model; }
+ boost::shared_ptr<MidiModel> model() { return _model; }
+ void set_model(boost::shared_ptr<MidiModel> m) { _model = m; }
+ void drop_model() { _model.reset(); }
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;
-
- mutable Glib::Mutex _lock;
- string _captured_for;
- mutable uint32_t _read_data_count; ///< modified in read()
- mutable uint32_t _write_data_count; ///< modified in write()
-
- MidiModel* _model;
- bool _model_loaded;
-
- private:
- bool file_changed (string path);
+ virtual void flush_midi() = 0;
+
+ virtual nframes_t read_unlocked (Evoral::EventSink<nframes_t>& dst,
+ sframes_t position,
+ sframes_t start, nframes_t cnt,
+ sframes_t stamp_offset, sframes_t negative_stamp_offset,
+ MidiStateTracker* tracker) const = 0;
+
+ virtual nframes_t write_unlocked (MidiRingBuffer<nframes_t>& dst,
+ sframes_t position,
+ nframes_t cnt) = 0;
+
+ std::string _captured_for;
+ 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<Evoral::MusicalTime>::const_iterator _model_iter;
+ mutable bool _model_iter_valid;
+
+ mutable double _length_beats;
+ mutable sframes_t _last_read_end;
+ sframes_t _last_write_end;
};
}
projects / ardour.git / blobdiff