[3.0P] dont dump chain(1) in session.cc
[ardour.git] / libs / ardour / midi_diskstream.cc
index 1840b950fddbb85c6abafd13f96fa1875ae698dc..fa2cdce0140e8664149e8a0fea55cf94785d0414 100644 (file)
 #include "pbd/xml++.h"
 #include "pbd/memento_command.h"
 #include "pbd/enumwriter.h"
+#include "pbd/stateful_diff_command.h"
 
 #include "ardour/ardour.h"
 #include "ardour/audioengine.h"
 #include "ardour/butler.h"
 #include "ardour/configuration.h"
 #include "ardour/cycle_timer.h"
+#include "ardour/debug.h"
 #include "ardour/io.h"
 #include "ardour/midi_diskstream.h"
 #include "ardour/midi_playlist.h"
@@ -52,6 +54,8 @@
 #include "ardour/session.h"
 #include "ardour/smf_source.h"
 #include "ardour/utils.h"
+#include "ardour/session_playlists.h"
+#include "ardour/route.h"
 
 #include "midi++/types.h"
 
@@ -78,7 +82,7 @@ MidiDiskstream::MidiDiskstream (Session &sess, const string &name, Diskstream::F
 
        in_set_state = true;
 
-       init(flag);
+       init ();
        use_new_playlist ();
 
        in_set_state = false;
@@ -97,7 +101,7 @@ MidiDiskstream::MidiDiskstream (Session& sess, const XMLNode& node)
        , _frames_read_from_ringbuffer(0)
 {
        in_set_state = true;
-       init (Recordable);
+       init ();
 
        if (set_state (node, Stateful::loading_state_version)) {
                in_set_state = false;
@@ -112,10 +116,8 @@ MidiDiskstream::MidiDiskstream (Session& sess, const XMLNode& node)
 }
 
 void
-MidiDiskstream::init (Diskstream::Flag f)
+MidiDiskstream::init ()
 {
-       Diskstream::init(f);
-
        /* there are no channels at this point, so these
           two calls just get speed_buffer_size and wrap_buffer
           size setup without duplicating their code.
@@ -219,7 +221,7 @@ MidiDiskstream::find_and_use_playlist (const string& name)
 {
        boost::shared_ptr<MidiPlaylist> playlist;
 
-       if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist> (_session.playlist_by_name (name))) == 0) {
+       if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist> (_session.playlists->by_name (name))) == 0) {
                playlist = boost::dynamic_pointer_cast<MidiPlaylist> (PlaylistFactory::create (DataType::MIDI, _session, name));
        }
 
@@ -484,7 +486,7 @@ trace_midi (ostream& o, MIDI::byte *msg, size_t len)
 #endif
 
 int
-MidiDiskstream::process (nframes_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input)
+MidiDiskstream::process (nframes_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input, bool& need_butler)
 {
        int       ret = -1;
        nframes_t rec_offset = 0;
@@ -492,39 +494,22 @@ MidiDiskstream::process (nframes_t transport_frame, nframes_t nframes, bool can_
        bool      nominally_recording;
        bool      re = record_enabled ();
 
-       /* if we've already processed the frames corresponding to this call,
-          just return. this allows multiple routes that are taking input
-          from this diskstream to call our ::process() method, but have
-          this stuff only happen once. more commonly, it allows both
-          the AudioTrack that is using this AudioDiskstream *and* the Session
-          to call process() without problems.
-          */
-
-       if (_processed) {
-               return 0;
-       }
-
-       commit_should_unlock = false;
+        playback_distance = 0;
 
        check_record_status (transport_frame, nframes, can_record);
 
        nominally_recording = (can_record && re);
 
        if (nframes == 0) {
-               _processed = true;
                return 0;
        }
 
-       /* This lock is held until the end of ::commit, so these two functions
-          must always be called as a pair. The only exception is if this function
-          returns a non-zero value, in which case, ::commit should not be called.
-          */
+        Glib::Mutex::Lock sm (state_lock, Glib::TRY_LOCK);
 
-       // If we can't take the state lock return.
-       if (!state_lock.trylock()) {
+        if (!sm.locked()) {
                return 1;
        }
-       commit_should_unlock = true;
+
        adjust_capture_position = 0;
 
        if (nominally_recording || (_session.get_record_enabled() && _session.config.get_punch_in())) {
@@ -583,17 +568,9 @@ MidiDiskstream::process (nframes_t transport_frame, nframes_t nframes, bool can_
 
        ret = 0;
 
-       _processed = true;
-
-       if (ret) {
-
-               /* we're exiting with failure, so ::commit will not
-                  be called. unlock the state lock.
-                  */
-
-               commit_should_unlock = false;
-               state_lock.unlock();
-       }
+        if (commit (nframes)) {
+                need_butler = true;
+        }
 
        return ret;
 }
@@ -624,12 +601,6 @@ MidiDiskstream::commit (nframes_t nframes)
                " = " << frames_written - frames_read
                << " + " << nframes << " < " << midi_readahead << " = " << need_butler << ")" << endl;*/
 
-       if (commit_should_unlock) {
-               state_lock.unlock();
-       }
-
-       _processed = false;
-
        return need_butler;
 }
 
@@ -638,7 +609,7 @@ MidiDiskstream::set_pending_overwrite (bool yn)
 {
        /* called from audio thread, so we can use the read ptr and playback sample as we wish */
 
-       pending_overwrite = yn;
+       _pending_overwrite = yn;
 
        overwrite_frame = playback_sample;
 }
@@ -648,7 +619,7 @@ MidiDiskstream::overwrite_existing_buffers ()
 {
        //read(overwrite_frame, disk_io_chunk_frames, false);
        overwrite_queued = false;
-       pending_overwrite = false;
+       _pending_overwrite = false;
 
        return 0;
 }
@@ -701,10 +672,12 @@ MidiDiskstream::read (nframes_t& start, nframes_t dur, bool reversed)
        bool reloop = false;
        nframes_t loop_end = 0;
        nframes_t loop_start = 0;
-       nframes_t loop_length = 0;
        Location *loc = 0;
 
        if (!reversed) {
+
+               nframes_t loop_length = 0;
+
                /* Make the use of a Location atomic for this read operation.
 
                   Note: Locations don't get deleted, so all we care about
@@ -910,13 +883,11 @@ out:
 }
 
 void
-MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool abort_capture)
+MidiDiskstream::transport_stopped_wallclock (struct tm& /*when*/, time_t /*twhen*/, bool abort_capture)
 {
-       uint32_t buffer_position;
        bool more_work = true;
        int err = 0;
        boost::shared_ptr<MidiRegion> region;
-       nframes_t total_capture;
        MidiRegion::SourceList srcs;
        MidiRegion::SourceList::iterator src;
        vector<CaptureInfo*>::iterator ci;
@@ -953,7 +924,6 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
                if (_write_source) {
 
                        _write_source->mark_for_remove ();
-                       _write_source->drop_references ();
                        _write_source.reset();
                }
 
@@ -963,7 +933,8 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
 
                assert(_write_source);
 
-               for (total_capture = 0, ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
+               nframes_t total_capture = 0;
+               for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
                        total_capture += (*ci)->frames;
                }
 
@@ -983,9 +954,16 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
                   */
 
                try {
-                       boost::shared_ptr<Region> rx (RegionFactory::create (srcs, 0,
-                                       total_capture, whole_file_region_name, 0,
-                                       Region::Flag (Region::DefaultFlags|Region::Automatic|Region::WholeFile)));
+                       PropertyList plist;
+
+                       plist.add (Properties::name, whole_file_region_name);
+                       plist.add (Properties::whole_file, true);
+                       plist.add (Properties::automatic, true);
+                       plist.add (Properties::start, 0);
+                       plist.add (Properties::length, total_capture);
+                       plist.add (Properties::layer, 0);
+
+                       boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
 
                        region = boost::dynamic_pointer_cast<MidiRegion> (rx);
                        region->special_set_position (capture_info.front()->start);
@@ -1001,19 +979,26 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
 
                // cerr << _name << ": there are " << capture_info.size() << " capture_info records\n";
 
-               XMLNode &before = _playlist->get_state();
+               _playlist->clear_history ();
                _playlist->freeze ();
 
+               uint32_t buffer_position = 0;
                for (buffer_position = 0, ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
 
                        string region_name;
 
-                       _session.region_name (region_name, _write_source->name(), false);
+                       RegionFactory::region_name (region_name, _write_source->name(), false);
 
                        // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add a region\n";
 
                        try {
-                               boost::shared_ptr<Region> rx (RegionFactory::create (srcs, buffer_position, (*ci)->frames, region_name));
+                               PropertyList plist;
+                               
+                               plist.add (Properties::start, buffer_position);
+                               plist.add (Properties::length, (*ci)->frames);
+                               plist.add (Properties::name, region_name);
+                               
+                               boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
                                region = boost::dynamic_pointer_cast<MidiRegion> (rx);
                        }
 
@@ -1022,7 +1007,7 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
                                continue; /* XXX is this OK? */
                        }
 
-                       region->GoingAway.connect (bind (mem_fun (*this, &Diskstream::remove_region_from_last_capture), boost::weak_ptr<Region>(region)));
+                       region->DropReferences.connect_same_thread (*this, boost::bind (&Diskstream::remove_region_from_last_capture, this, boost::weak_ptr<Region>(region)));
 
                        _last_capture_regions.push_back (region);
 
@@ -1036,8 +1021,7 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
                }
 
                _playlist->thaw ();
-               XMLNode &after = _playlist->get_state();
-               _session.add_command (new MementoCommand<Playlist>(*_playlist, &before, &after));
+               _session.add_command (new StatefulDiffCommand(_playlist));
 
        }
 
@@ -1049,6 +1033,10 @@ MidiDiskstream::transport_stopped (struct tm& /*when*/, time_t /*twhen*/, bool a
                delete *ci;
        }
 
+       if (_playlist) {
+               midi_playlist()->clear_note_trackers ();
+       }
+
        capture_info.clear ();
        capture_start_frame = 0;
 }
@@ -1123,15 +1111,6 @@ MidiDiskstream::set_record_enabled (bool yn)
 
        assert(!destructive());
 
-       if (yn && _source_port == 0) {
-
-               /* pick up connections not initiated *from* the IO object
-                  we're associated with.
-               */
-
-               get_input_sources ();
-       }
-
        /* yes, i know that this not proof against race conditions, but its
           good enough. i think.
        */
@@ -1181,7 +1160,7 @@ MidiDiskstream::disengage_record_enable ()
 XMLNode&
 MidiDiskstream::get_state ()
 {
-       XMLNode* node = new XMLNode ("MidiDiskstream");
+       XMLNode* node = new XMLNode ("Diskstream");
        char buf[64];
        LocaleGuard lg (X_("POSIX"));
 
@@ -1218,7 +1197,7 @@ MidiDiskstream::get_state ()
                if (_session.config.get_punch_in() && ((pi = _session.locations()->auto_punch_location()) != 0)) {
                        snprintf (buf, sizeof (buf), "%" PRId64, pi->start());
                } else {
-                       snprintf (buf, sizeof (buf), "%" PRIu32, _session.transport_frame());
+                       snprintf (buf, sizeof (buf), "%" PRId64, _session.transport_frame());
                }
 
                cs_child->add_property (X_("at"), buf);
@@ -1238,7 +1217,6 @@ MidiDiskstream::set_state (const XMLNode& node, int /*version*/)
        const XMLProperty* prop;
        XMLNodeList nlist = node.children();
        XMLNodeIterator niter;
-       uint32_t nchans = 1;
        XMLNode* capture_pending_node = 0;
        LocaleGuard lg (X_("POSIX"));
 
@@ -1286,10 +1264,6 @@ MidiDiskstream::set_state (const XMLNode& node, int /*version*/)
 
        set_channel_mode(channel_mode, channel_mask);
 
-       if ((prop = node.property ("channels")) != 0) {
-               nchans = atoi (prop->value().c_str());
-       }
-
        if ((prop = node.property ("playlist")) == 0) {
                return -1;
        }
@@ -1302,7 +1276,7 @@ MidiDiskstream::set_state (const XMLNode& node, int /*version*/)
                }
 
                if (!had_playlist) {
-                       _playlist->set_orig_diskstream_id (_id);
+                       _playlist->set_orig_diskstream_id (id());
                }
 
                if (capture_pending_node) {
@@ -1347,7 +1321,12 @@ MidiDiskstream::use_new_write_source (uint32_t n)
        if (_write_source) {
 
                if (_write_source->is_empty ()) {
+                       /* remove any region that is using this empty source; they can result when MIDI recordings
+                          are made, but no MIDI data is received.
+                       */
+                       _playlist->remove_region_by_source (_write_source);
                        _write_source->mark_for_remove ();
+                       _write_source->drop_references ();
                        _write_source.reset();
                } else {
                        _write_source.reset();
@@ -1355,7 +1334,7 @@ MidiDiskstream::use_new_write_source (uint32_t n)
        }
 
        try {
-               _write_source = boost::dynamic_pointer_cast<SMFSource>(_session.create_midi_source_for_session (*this));
+               _write_source = boost::dynamic_pointer_cast<SMFSource>(_session.create_midi_source_for_session (name ()));
                if (!_write_source) {
                        throw failed_constructor();
                }
@@ -1391,7 +1370,7 @@ int
 MidiDiskstream::rename_write_sources ()
 {
        if (_write_source != 0) {
-               _write_source->set_source_name (_name, destructive());
+               _write_source->set_source_name (_name.val(), destructive());
                /* XXX what to do if this fails ? */
        }
        return 0;
@@ -1473,14 +1452,13 @@ MidiDiskstream::get_playback (MidiBuffer& dst, nframes_t start, nframes_t end)
 
        // Translates stamps to be relative to start
 
-       _playback_buf->read(dst, start, end);
 
-#if 0
+#ifndef NDEBUG
        const size_t events_read = _playback_buf->read(dst, start, end);
-       cout << _name << ": MDS events read = " << events_read
-            << " start = " << start << " end = " << end
-            << " readspace " << _playback_buf->read_space()
-            << " writespace " << _playback_buf->write_space() << endl;
+       DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("%1 MDS events read %2 range %3 .. %4 rspace %5 wspace %6\n", _name, events_read, start, end,
+                                                             _playback_buf->read_space(), _playback_buf->write_space()));
+#else
+       _playback_buf->read(dst, start, end);
 #endif
 
        gint32 frames_read = end - start;