Fix more broken whitespace.
[ardour.git] / libs / ardour / midi_track.cc
index 10bd7a23a5cb1c57713a924b045087ed82d143fe..a2ebef4ef4eec67e3f863bf03e0d13af556ee8e2 100644 (file)
@@ -1,6 +1,6 @@
 /*
     Copyright (C) 2006 Paul Davis
-       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
@@ -16,6 +16,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
+
 #include "pbd/error.h"
 
 #include "pbd/enumwriter.h"
@@ -25,6 +26,7 @@
 
 #include "ardour/amp.h"
 #include "ardour/buffer_set.h"
+#include "ardour/debug.h"
 #include "ardour/delivery.h"
 #include "ardour/io_processor.h"
 #include "ardour/meter.h"
@@ -80,7 +82,17 @@ MidiTrack::use_new_diskstream ()
        ds->do_refill_with_alloc ();
        ds->set_block_size (_session.get_block_size ());
 
-       set_diskstream (boost::dynamic_pointer_cast<MidiDiskstream> (ds));
+       set_diskstream (ds);
+}
+
+void
+MidiTrack::set_record_enabled (bool yn, void *src)
+{
+       if (_step_editing) {
+               return;
+       }
+
+       Track::set_record_enabled (yn, src);
 }
 
 void
@@ -94,6 +106,12 @@ MidiTrack::set_diskstream (boost::shared_ptr<Diskstream> ds)
        _diskstream->set_record_enabled (false);
        //_diskstream->monitor_input (false);
 
+       _diskstream_data_recorded_connection.disconnect ();
+       boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream> (ds);
+       mds->DataRecorded.connect_same_thread (
+               _diskstream_data_recorded_connection,
+               boost::bind (&MidiTrack::diskstream_data_recorded, this, _1, _2));
+
        DiskstreamChanged (); /* EMIT SIGNAL */
 }
 
@@ -141,19 +159,34 @@ MidiTrack::_set_state (const XMLNode& node, int version, bool call_base)
        XMLNode *child;
 
        nlist = node.children();
+
+       if (version >= 3000) {
+               if ((child = find_named_node (node, X_("Diskstream"))) != 0) {
+                       boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, *child));
+                       ds->do_refill_with_alloc ();
+                       set_diskstream (ds);
+               }
+       }
+
+       /* set rec-enable control *AFTER* setting up diskstream, because it may
+          want to operate on the diskstream as it sets its own state
+       */
+
        for (niter = nlist.begin(); niter != nlist.end(); ++niter){
                child = *niter;
 
-               if (child->name() == X_("recenable")) {
-                       _rec_enable_control->set_state (*child, version);
-                       _session.add_controllable (_rec_enable_control);
+               if (child->name() == Controllable::xml_node_name && (prop = child->property ("name")) != 0) {
+                       if (prop->value() == X_("recenable")) {
+                               _rec_enable_control->set_state (*child, version);
+                       }
                }
        }
 
        pending_state = const_cast<XMLNode*> (&node);
 
        if (_session.state_of_the_state() & Session::Loading) {
-               _session.StateReady.connect_same_thread (*this, boost::bind (&MidiTrack::set_state_part_two, this));
+               _session.StateReady.connect_same_thread (
+                       *this, boost::bind (&MidiTrack::set_state_part_two, this));
        } else {
                set_state_part_two ();
        }
@@ -258,31 +291,26 @@ MidiTrack::set_state_part_two ()
                }
        }
 
-       if ((fnode = find_named_node (*pending_state, X_("Diskstream"))) != 0) {
-               boost::shared_ptr<MidiDiskstream> ds (new MidiDiskstream (_session, *fnode));
-               ds->do_refill_with_alloc ();
-               ds->set_block_size (_session.get_block_size ());
-               set_diskstream (ds);
+       if (midi_diskstream ()) {
+               midi_diskstream()->set_block_size (_session.get_block_size ());
        }
 
        return;
 }
 
 int
-MidiTrack::roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick,
+MidiTrack::roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick,
                 bool can_record, bool rec_monitors_input, bool& needs_butler)
 {
+       Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
+       if (!lm.locked()) {
+               return 0;
+       }
+
        int dret;
        boost::shared_ptr<MidiDiskstream> diskstream = midi_diskstream();
 
-       {
-               Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
-               if (lm.locked()) {
-                       // automation snapshot can also be called from the non-rt context
-                       // and it uses the redirect list, so we take the lock out here
-                       automation_snapshot (start_frame);
-               }
-       }
+       automation_snapshot (start_frame);
 
        if (n_outputs().n_total() == 0 && _processors.empty()) {
                return 0;
@@ -293,8 +321,7 @@ MidiTrack::roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame
                return 0;
        }
 
-       nframes_t transport_frame = _session.transport_frame();
-
+       framepos_t transport_frame = _session.transport_frame();
 
        if ((nframes = check_initial_delay (nframes, transport_frame)) == 0) {
                /* need to do this so that the diskstream sets its
@@ -341,29 +368,37 @@ MidiTrack::roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame
                BufferSet& bufs = _session.get_scratch_buffers (n_process_buffers());
                MidiBuffer& mbuf (bufs.get_midi (0));
 
+               /* we are a MIDI track, so we always start the chain with a single-channel diskstream */
+               ChanCount c;
+               c.set_audio (0);
+               c.set_midi (1);
+               bufs.set_count (c);
+
                diskstream->get_playback (mbuf, start_frame, end_frame);
 
                /* append immediate messages to the first MIDI buffer (thus sending it to the first output port) */
 
                write_out_of_band_data (bufs, start_frame, end_frame, nframes);
 
-               process_output_buffers (bufs, start_frame, end_frame, nframes,
-                                       (!_session.get_record_enabled() || !Config->get_do_not_record_plugins()), declick);
+               /* final argument: don't waste time with automation if we're recording or we've just stopped (yes it can happen) */
 
+               process_output_buffers (bufs, start_frame, end_frame, nframes,
+                                       (!_session.get_record_enabled() || !Config->get_do_not_record_plugins()), declick,
+                                       (!diskstream->record_enabled() && !_session.transport_stopped()));
        }
 
-       _main_outs->flush (nframes, end_frame - start_frame - 1);
+       _main_outs->flush_buffers (nframes, end_frame - start_frame - 1);
 
        return 0;
 }
 
 int
-MidiTrack::no_roll (nframes_t nframes, sframes_t start_frame, sframes_t end_frame,
+MidiTrack::no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
                    bool state_changing, bool can_record, bool rec_monitors_input)
 {
        int ret = Track::no_roll (nframes, start_frame, end_frame, state_changing, can_record, rec_monitors_input);
 
-       if (ret == 0 && _diskstream->record_enabled() && _step_editing) {
+       if (ret == 0 && _step_editing) {
                push_midi_input_to_step_edit_ringbuffer (nframes);
        }
 
@@ -371,16 +406,20 @@ MidiTrack::no_roll (nframes_t nframes, sframes_t start_frame, sframes_t end_fram
 }
 
 void
-MidiTrack::handle_transport_stopped (bool abort, bool did_locate, bool flush_processors)
+MidiTrack::realtime_handle_transport_stopped ()
 {
+       Glib::RWLock::ReaderLock lm (_processor_lock, Glib::TRY_LOCK);
+       if (!lm.locked ()) {
+               return;
+       }
 
-       _main_outs->transport_stopped ();
-       Route::handle_transport_stopped (abort, did_locate, flush_processors);
+       for (ProcessorList::iterator i = _processors.begin(); i != _processors.end(); ++i) {
+               (*i)->realtime_handle_transport_stopped ();
+       }
 }
 
-
 void
-MidiTrack::push_midi_input_to_step_edit_ringbuffer (nframes_t nframes)
+MidiTrack::push_midi_input_to_step_edit_ringbuffer (framecnt_t nframes)
 {
        PortSet& ports (_input->ports());
 
@@ -392,21 +431,30 @@ MidiTrack::push_midi_input_to_step_edit_ringbuffer (nframes_t nframes)
 
                for (MidiBuffer::const_iterator e = mb->begin(); e != mb->end(); ++e) {
 
-                       const Evoral::MIDIEvent<nframes_t> ev(*e, false);
+                       const Evoral::MIDIEvent<framepos_t> ev(*e, false);
 
-                       /* we don't care about the time for this purpose */
+                       /* note on, since for step edit, note length is determined
+                          elsewhere 
+                       */
 
-                       _step_edit_ring_buffer.write (0, ev.type(), ev.size(), ev.buffer());
+                       if (ev.is_note_on()) {
+                               /* we don't care about the time for this purpose */
+                               _step_edit_ring_buffer.write (0, ev.type(), ev.size(), ev.buffer());
+                       }
                }
        }
 }
 
 void
-MidiTrack::write_out_of_band_data (BufferSet& bufs, sframes_t /*start*/, sframes_t /*end*/, nframes_t nframes)
+MidiTrack::write_out_of_band_data (BufferSet& bufs, framepos_t /*start*/, framepos_t /*end*/, framecnt_t nframes)
 {
        // Append immediate events
        MidiBuffer& buf (bufs.get_midi (0));
-       _immediate_events.read (buf, 0, 0, nframes - 1); // all stamps = 0
+       if (_immediate_events.read_space()) {
+               DEBUG_TRACE (DEBUG::MidiIO, string_compose ("%1 has %2 of immediate events to deliver\n", 
+                                                           name(), _immediate_events.read_space()));
+       }
+       _immediate_events.read (buf, 0, 1, nframes-1); // all stamps = 0
 
        // MIDI thru: send incoming data "through" output
        if (_midi_thru && _session.transport_speed() != 0.0f && _input->n_ports().n_midi()) {
@@ -415,18 +463,11 @@ MidiTrack::write_out_of_band_data (BufferSet& bufs, sframes_t /*start*/, sframes
 }
 
 int
-MidiTrack::export_stuff (BufferSet& /*bufs*/, nframes_t /*nframes*/, sframes_t /*end_frame*/)
+MidiTrack::export_stuff (BufferSet& /*bufs*/, framecnt_t /*nframes*/, framepos_t /*end_frame*/)
 {
        return -1;
 }
 
-void
-MidiTrack::set_latency_delay (nframes_t longest_session_latency)
-{
-       Route::set_latency_delay (longest_session_latency);
-       _diskstream->set_roll_delay (_roll_delay);
-}
-
 boost::shared_ptr<Region>
 MidiTrack::bounce (InterThreadInfo& /*itt*/)
 {
@@ -438,7 +479,7 @@ MidiTrack::bounce (InterThreadInfo& /*itt*/)
 
 
 boost::shared_ptr<Region>
-MidiTrack::bounce_range (nframes_t /*start*/, nframes_t /*end*/, InterThreadInfo& /*itt*/, bool /*enable_processing*/)
+MidiTrack::bounce_range (framepos_t /*start*/, framepos_t /*end*/, InterThreadInfo& /*itt*/, bool /*enable_processing*/)
 {
        throw;
        //vector<MidiSource*> srcs;
@@ -468,6 +509,7 @@ MidiTrack::set_note_mode (NoteMode m)
 void
 MidiTrack::midi_panic()
 {
+       DEBUG_TRACE (DEBUG::MidiIO, string_compose ("%1 delivers panic data\n", name()));
        for (uint8_t channel = 0; channel <= 0xF; channel++) {
                uint8_t ev[3] = { MIDI_CMD_CONTROL | channel, MIDI_CTL_SUSTAIN, 0 };
                write_immediate_event(3, ev);
@@ -492,7 +534,7 @@ MidiTrack::write_immediate_event(size_t size, const uint8_t* buf)
 }
 
 void
-MidiTrack::MidiControl::set_value(float val)
+MidiTrack::MidiControl::set_value(double val)
 {
        bool valid = false;
        if (isinf(val)) {
@@ -552,7 +594,14 @@ MidiTrack::MidiControl::set_value(float val)
 void
 MidiTrack::set_step_editing (bool yn)
 {
-       _step_editing = yn;
+       if (_session.record_status() != Session::Disabled) {
+               return;
+       }
+
+       if (yn != _step_editing) {
+               _step_editing = yn;
+               StepEditStatusChange (yn);
+       }
 }
 
 void
@@ -568,9 +617,49 @@ MidiTrack::set_midi_thru (bool yn)
 }
 
 boost::shared_ptr<SMFSource>
-MidiTrack::write_source (uint32_t n)
+MidiTrack::write_source (uint32_t)
+{
+       return midi_diskstream()->write_source ();
+}
+
+void
+MidiTrack::set_channel_mode (ChannelMode mode, uint16_t mask)
+{
+       midi_diskstream()->set_channel_mode (mode, mask);
+}
+
+ChannelMode
+MidiTrack::get_channel_mode ()
+{
+       return midi_diskstream()->get_channel_mode ();
+}
+
+uint16_t
+MidiTrack::get_channel_mask ()
+{
+       return midi_diskstream()->get_channel_mask ();
+}
+
+boost::shared_ptr<MidiPlaylist>
+MidiTrack::midi_playlist ()
+{
+       return midi_diskstream()->midi_playlist ();
+}
+
+void
+MidiTrack::diskstream_data_recorded (boost::shared_ptr<MidiBuffer> buf, boost::weak_ptr<MidiSource> src)
+{
+       DataRecorded (buf, src); /* EMIT SIGNAL */
+}
+                              
+bool
+MidiTrack::should_monitor () const
+{
+       return true;
+}
+
+bool
+MidiTrack::send_silence () const
 {
-       boost::shared_ptr<MidiDiskstream> ds = boost::dynamic_pointer_cast<MidiDiskstream> (_diskstream);
-       assert (ds);
-       return ds->write_source ();
+       return false;
 }