nominally add MIDI input support for AudioUnit plugins

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

diff --git a/libs/ardour/ardour/midi_diskstream.h b/libs/ardour/ardour/midi_diskstream.h
index 7035cdfd0231a400b3811dfb9b74902349b6cdab..126857a858e1d0f67a245059694d68340e278e33 100644 (file)
--- a/libs/ardour/ardour/midi_diskstream.h
+++ b/libs/ardour/ardour/midi_diskstream.h
@@ -21,7 +21,6 @@
 #ifndef __ardour_midi_diskstream_h__
 #define __ardour_midi_diskstream_h__
 
-#include <sigc++/signal.h>
 
 #include <cmath>
 #include <cassert>
@@ -63,7 +62,7 @@ class MidiDiskstream : public Diskstream
        float playback_buffer_load() const;
        float capture_buffer_load() const;
 
-       void get_playback(MidiBuffer& dst, nframes_t start, nframes_t end);
+       void get_playback(MidiBuffer& dst, framepos_t start, framepos_t end);
 
        void set_record_enabled (bool yn);
 
@@ -75,12 +74,10 @@ class MidiDiskstream : public Diskstream
 
        /* stateful */
        XMLNode& get_state(void);
-       int set_state(const XMLNode& node);
+       int set_state(const XMLNode&, int version);
 
        void monitor_input (bool);
 
-       MidiRingBuffer<nframes_t>*   playback_buffer () { return _playback_buf; }
-       MidiRingBuffer<nframes_t>*   capture_buffer ()  { return _capture_buf; }
        boost::shared_ptr<SMFSource> write_source ()    { return _write_source; }
 
        int set_destructive (bool yn); // doom!
@@ -110,8 +107,15 @@ class MidiDiskstream : public Diskstream
                return playback_mode;
        }
 
+       /** Emitted when some MIDI data has been received for recording.
+        *  First parameter is the data.
+        *  Second parameter is the source that it is destined for.
+        */
+       PBD::Signal2<void, boost::shared_ptr<MidiBuffer>, boost::weak_ptr<MidiSource> > DataRecorded;
+
   protected:
        friend class Session;
+       friend class Butler;
 
        /* the Session is the only point of access for these
           because they require that the Session is "inactive"
@@ -121,22 +125,23 @@ class MidiDiskstream : public Diskstream
        void set_pending_overwrite(bool);
        int  overwrite_existing_buffers ();
        void set_block_size (nframes_t);
-       int  internal_playback_seek (nframes_t distance);
-       int  can_internal_playback_seek (nframes_t distance);
+       int  internal_playback_seek (framecnt_t distance);
+       int  can_internal_playback_seek (framecnt_t distance);
        int  rename_write_sources ();
+        std::list<boost::shared_ptr<Source> > steal_write_sources();
        void reset_write_sources (bool, bool force = false);
        void non_realtime_input_change ();
-       void non_realtime_locate (nframes_t location);
+       void non_realtime_locate (framepos_t location);
 
        static void set_readahead_frames(nframes_t frames_ahead) { midi_readahead = frames_ahead; }
 
   protected:
-       int seek (nframes_t which_sample, bool complete_refill = false);
+       int seek (framepos_t which_sample, bool complete_refill = false);
 
   protected:
        friend class MidiTrack;
 
-       int  process (nframes_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input);
+       int  process (framepos_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input, bool& need_butler);
        bool commit  (nframes_t nframes);
        static nframes_t midi_readahead;
 
@@ -148,13 +153,13 @@ class MidiDiskstream : public Diskstream
 
        int do_refill_with_alloc();
 
-       int read (nframes_t& start, nframes_t cnt, bool reversed);
+       int read (framepos_t& start, nframes_t cnt, bool reversed);
 
        void finish_capture (bool rec_monitors_input);
-       void transport_stopped (struct tm&, time_t, bool abort);
-       void transport_looped (nframes_t transport_frame);
+       void transport_stopped_wallclock (struct tm&, time_t, bool abort);
+       void transport_looped (framepos_t transport_frame);
 
-       void init (Diskstream::Flag);
+       void init ();
 
        int use_new_write_source (uint32_t n=0);
 
@@ -165,9 +170,14 @@ class MidiDiskstream : public Diskstream
        int use_pending_capture_data (XMLNode& node);
 
        void get_input_sources ();
-       void check_record_status (nframes_t transport_frame, nframes_t nframes, bool can_record);
        void set_align_style_from_io();
 
+        /* fixed size buffers per instance of ardour for now (non-dynamic)
+         */
+
+        void adjust_playback_buffering () {}
+        void adjust_capture_buffering () {}
+
        void engage_record_enable ();
        void disengage_record_enable ();