/*
Copyright (C) 2006 Paul Davis
- Written by Dave Robillard, 2006
+ 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
#include <string>
#include <time.h>
-#include <sigc++/signal.h>
-#include <glibmm/thread.h>
+#include <glibmm/threads.h>
+#include <boost/enable_shared_from_this.hpp>
#include "pbd/stateful.h"
#include "pbd/xml++.h"
#include "evoral/Sequence.hpp"
namespace ARDOUR {
+class MidiChannelFilter;
class MidiStateTracker;
class MidiModel;
+
template<typename T> class MidiRingBuffer;
/** Source for MIDI data */
-class MidiSource : virtual public Source
+class LIBARDOUR_API MidiSource : virtual public Source, public boost::enable_shared_from_this<MidiSource>
{
public:
- typedef double TimeType;
+ typedef Evoral::Beats TimeType;
MidiSource (Session& session, std::string name, Source::Flag flags = Source::Flag(0));
MidiSource (Session& session, const XMLNode&);
virtual ~MidiSource ();
+ /** Write the data in the given time range to another MidiSource
+ * \param newsrc MidiSource to which data will be written. Should be a
+ * new, empty source. If it already has contents, the results are
+ * undefined. Source must be writable.
+ * \param begin time of earliest event that can be written.
+ * \param end time of latest event that can be written.
+ * \return zero on success, non-zero if the write failed for any reason.
+ */
+ int write_to (const Lock& lock,
+ boost::shared_ptr<MidiSource> newsrc,
+ Evoral::Beats begin = Evoral::MinBeats,
+ Evoral::Beats end = Evoral::MaxBeats);
+
/** 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
+ * \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 tracker an optional pointer to MidiStateTracker object, for note on/off tracking.
+ * \param filtered Parameters whose MIDI messages will not be returned.
*/
- virtual nframes_t midi_read (MidiRingBuffer<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 framecnt_t midi_read (const Lock& lock,
+ Evoral::EventSink<framepos_t>& dst,
+ framepos_t source_start,
+ framepos_t start,
+ framecnt_t cnt,
+ MidiStateTracker* tracker,
+ MidiChannelFilter* filter,
+ const std::set<Evoral::Parameter>& filtered) const;
+
+ /** Write data from a MidiRingBuffer to this source.
+ * @param source Source to read from.
+ * @param source_start This source's start position in session frames.
+ * @param cnt The length of time to write.
+ */
+ virtual framecnt_t midi_write (const Lock& lock,
+ MidiRingBuffer<framepos_t>& src,
+ framepos_t source_start,
+ framecnt_t cnt);
+
+ /** Append a single event with a timestamp in beats.
+ *
+ * Caller must ensure that the event is later than the last written event.
+ */
+ virtual void append_event_beats(const Lock& lock,
+ const Evoral::Event<Evoral::Beats>& ev) = 0;
- 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 ();
+ /** Append a single event with a timestamp in frames.
+ *
+ * Caller must ensure that the event is later than the last written event.
+ */
+ virtual void append_event_frames(const Lock& lock,
+ const Evoral::Event<framepos_t>& ev,
+ framepos_t source_start) = 0;
+
+ virtual bool empty () const;
+ virtual framecnt_t length (framepos_t pos) const;
+ virtual void update_length (framecnt_t);
+
+ virtual void mark_streaming_midi_write_started (const Lock& lock, NoteMode mode);
+ virtual void mark_streaming_write_started (const Lock& lock);
+ virtual void mark_streaming_write_completed (const Lock& lock);
+
+ /** Mark write starting with the given time parameters.
+ *
+ * This is called by MidiDiskStream::process before writing to the capture
+ * buffer which will be later read by midi_read().
+ *
+ * @param position The timeline position the source now starts at.
+ * @param capture_length The current length of the capture, which may not
+ * be zero if record is armed while rolling.
+ * @param loop_length The loop length if looping, otherwise zero.
+ */
+ void mark_write_starting_now (framecnt_t position,
+ framecnt_t capture_length,
+ framecnt_t loop_length);
+
+ /* like ::mark_streaming_write_completed() but with more arguments to
+ * allow control over MIDI-specific behaviour. Expected to be used only
+ * when recording actual MIDI input, rather then when importing files
+ * etc.
+ */
+ virtual void mark_midi_streaming_write_completed (
+ const Lock& lock,
+ Evoral::Sequence<Evoral::Beats>::StuckNoteOption stuck_option,
+ Evoral::Beats when = Evoral::Beats());
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;
-
- // Signal a range of recorded data is available for reading from model()
- mutable sigc::signal<void,sframes_t,nframes_t> ViewDataRangeReady;
+ static PBD::Signal1<void,MidiSource*> MidiSourceCreated;
XMLNode& get_state ();
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_length_beats(TimeType l) { _length_beats = l; }
+ TimeType length_beats() const { return _length_beats; }
+
+ virtual void load_model(const Glib::Threads::Mutex::Lock& lock, bool force_reload=false) = 0;
+ virtual void destroy_model(const Glib::Threads::Mutex::Lock& lock) = 0;
- /** This must be called with the source lock held whenever the
- * source/model contents have been changed (reset iterators/cache/etc).
+ /** Reset cached information (like iterators) when things have changed.
+ * @param lock Source lock, which must be held by caller.
+ * @param notes If non-NULL, currently active notes are added to this set.
*/
- void invalidate();
+ void invalidate(const Glib::Threads::Mutex::Lock& lock,
+ std::set<Evoral::Sequence<Evoral::Beats>::WeakNotePtr>* notes=NULL);
- void set_note_mode(NoteMode mode);
+ void set_note_mode(const Glib::Threads::Mutex::Lock& lock, NoteMode mode);
boost::shared_ptr<MidiModel> model() { return _model; }
- void set_model(boost::shared_ptr<MidiModel> m) { _model = m; }
- void drop_model() { _model.reset(); }
+ void set_model(const Glib::Threads::Mutex::Lock& lock, boost::shared_ptr<MidiModel>);
+ void drop_model(const Glib::Threads::Mutex::Lock& lock);
+
+ Evoral::ControlList::InterpolationStyle interpolation_of (Evoral::Parameter) const;
+ void set_interpolation_of (Evoral::Parameter, Evoral::ControlList::InterpolationStyle);
+ void copy_interpolation_from (boost::shared_ptr<MidiSource>);
+ void copy_interpolation_from (MidiSource *);
+
+ AutoState automation_state_of (Evoral::Parameter) const;
+ void set_automation_state_of (Evoral::Parameter, AutoState);
+ void copy_automation_state_from (boost::shared_ptr<MidiSource>);
+ void copy_automation_state_from (MidiSource *);
+
+ /** Emitted when a different MidiModel is set */
+ PBD::Signal0<void> ModelChanged;
+ /** Emitted when a parameter's interpolation style is changed */
+ PBD::Signal2<void, Evoral::Parameter, Evoral::ControlList::InterpolationStyle> InterpolationChanged;
+ /** Emitted when a parameter's automation state is changed */
+ PBD::Signal2<void, Evoral::Parameter, AutoState> AutomationStateChanged;
protected:
- virtual void flush_midi() = 0;
-
- virtual nframes_t read_unlocked (MidiRingBuffer<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;
+ virtual void flush_midi(const Lock& lock) = 0;
+
+ virtual framecnt_t read_unlocked (const Lock& lock,
+ Evoral::EventSink<framepos_t>& dst,
+ framepos_t position,
+ framepos_t start,
+ framecnt_t cnt,
+ MidiStateTracker* tracker,
+ MidiChannelFilter* filter) const = 0;
+
+ /** Write data to this source from a MidiRingBuffer.
+ * @param source Buffer to read from.
+ * @param position This source's start position in session frames.
+ * @param cnt The duration of this block to write for.
+ */
+ virtual framecnt_t write_unlocked (const Lock& lock,
+ MidiRingBuffer<framepos_t>& source,
+ framepos_t position,
+ framecnt_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()
+ std::string _captured_for;
boost::shared_ptr<MidiModel> _model;
bool _writing;
- mutable Evoral::Sequence<Evoral::MusicalTime>::const_iterator _model_iter;
+ mutable Evoral::Sequence<Evoral::Beats>::const_iterator _model_iter;
+ mutable bool _model_iter_valid;
- mutable double _length_beats;
- mutable sframes_t _last_read_end;
- sframes_t _last_write_end;
+ mutable Evoral::Beats _length_beats;
+ mutable framepos_t _last_read_end;
- private:
- bool file_changed (std::string path);
+ /** The total duration of the current capture. */
+ framepos_t _capture_length;
+
+ /** Length of transport loop during current capture, or zero. */
+ framepos_t _capture_loop_length;
+
+ /** Map of interpolation styles to use for Parameters; if they are not in this map,
+ * the correct interpolation style can be obtained from EventTypeMap::interpolation_of ()
+ */
+ typedef std::map<Evoral::Parameter, Evoral::ControlList::InterpolationStyle> InterpolationStyleMap;
+ InterpolationStyleMap _interpolation_style;
+
+ /** Map of automation states to use for Parameters; if they are not in this map,
+ * the correct automation state is Off.
+ */
+ typedef std::map<Evoral::Parameter, AutoState> AutomationStateMap;
+ AutomationStateMap _automation_state;
};
}
projects / ardour.git / blobdiff