Merge branch 'master' into cairocanvas
[ardour.git] / libs / ardour / midi_port.cc
index a8bff5bfa704a188d7a33baa67506dd88c81984f..55280eb9428e82aed7fc611a53d866991f0b0b82 100644 (file)
 using namespace ARDOUR;
 using namespace std;
 
-MidiPort::MidiPort (const std::string& name, Flags flags)
+#define port_engine AudioEngine::instance()->port_engine()
+
+MidiPort::MidiPort (const std::string& name, PortFlags flags)
        : Port (name, DataType::MIDI, flags)
        , _has_been_mixed_down (false)
        , _resolve_required (false)
+       , _input_active (true)
+       , _always_parse (false)
 {
        _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI));
 }
@@ -42,14 +46,32 @@ MidiPort::~MidiPort()
 void
 MidiPort::cycle_start (pframes_t nframes)
 {
+       framepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
+
        Port::cycle_start (nframes);
 
        _buffer->clear ();
 
-       assert (_buffer->size () == 0);
-
        if (sends_output ()) {
-               jack_midi_clear_buffer (jack_port_get_buffer (_jack_port, nframes));
+               port_engine.midi_clear (port_engine.get_buffer (_port_handle, nframes));
+       }
+
+       if (_always_parse) {
+               MidiBuffer& mb (get_midi_buffer (nframes));
+
+               /* dump incoming MIDI to parser */
+               
+               for (MidiBuffer::iterator b = mb.begin(); b != mb.end(); ++b) {
+                       uint8_t* buf = (*b).buffer();
+                       
+                       _self_parser.set_timestamp (now + (*b).time());
+                       
+                       uint32_t limit = (*b).size();
+                       
+                       for (size_t n = 0; n < limit; ++n) {
+                               _self_parser.scanner (buf[n]);
+                       }
+               }
        }
 }
 
@@ -62,36 +84,42 @@ MidiPort::get_midi_buffer (pframes_t nframes)
 
        if (receives_input ()) {
 
-               void* jack_buffer = jack_port_get_buffer (_jack_port, nframes);
-               const pframes_t event_count = jack_midi_get_event_count (jack_buffer);
-
-               assert (event_count < _buffer->capacity());
-
-               /* suck all relevant MIDI events from the JACK MIDI port buffer
-                  into our MidiBuffer
-               */
-
-               for (pframes_t i = 0; i < event_count; ++i) {
-
-                       jack_midi_event_t ev;
-
-                       jack_midi_event_get (&ev, jack_buffer, i);
-
-                       if (ev.buffer[0] == 0xfe) {
-                               /* throw away active sensing */
-                               continue;
-                       }
-
-                       /* check that the event is in the acceptable time range */
+               if (_input_active) {
+
+                       void* buffer = port_engine.get_buffer (_port_handle, nframes);
+                       const pframes_t event_count = port_engine.get_midi_event_count (buffer);
+
+                       /* suck all relevant MIDI events from the MIDI port buffer
+                          into our MidiBuffer
+                       */
+
+                       for (pframes_t i = 0; i < event_count; ++i) {
+                               
+                               pframes_t timestamp;
+                               size_t size;
+                               uint8_t* buf;
+                               
+                               port_engine.midi_event_get (timestamp, size, &buf, buffer, i);
+                               
+                               if (buf[0] == 0xfe) {
+                                       /* throw away active sensing */
+                                       continue;
+                               }
+                               
+                               /* check that the event is in the acceptable time range */
+                               
+                               if ((timestamp >= (_global_port_buffer_offset + _port_buffer_offset)) &&
+                                   (timestamp < (_global_port_buffer_offset + _port_buffer_offset + nframes))) {
+                                       _buffer->push_back (timestamp, size, buf);
+                               } else {
+                                       cerr << "Dropping incoming MIDI at time " << timestamp << "; offset="
+                                            << _global_port_buffer_offset << " limit="
+                                            << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n";
+                               }
+                       } 
 
-                       if ((ev.time >= (_global_port_buffer_offset + _port_buffer_offset)) &&
-                           (ev.time < (_global_port_buffer_offset + _port_buffer_offset + nframes))) {
-                               _buffer->push_back (ev);
-                       } else {
-                               cerr << "Dropping incoming MIDI at time " << ev.time << "; offset="
-                                    << _global_port_buffer_offset << " limit="
-                                    << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n";
-                       }
+               } else {
+                       _buffer->silence (nframes);
                }
 
        } else {
@@ -105,7 +133,6 @@ MidiPort::get_midi_buffer (pframes_t nframes)
        return *_buffer;
 }
 
-
 void
 MidiPort::cycle_end (pframes_t /*nframes*/)
 {
@@ -119,45 +146,49 @@ MidiPort::cycle_split ()
 }
 
 void
-MidiPort::resolve_notes (void* jack_buffer, MidiBuffer::TimeType when)
+MidiPort::resolve_notes (void* port_buffer, MidiBuffer::TimeType when)
 {
-       uint8_t ev[3];
-
-       ev[2] = 0;
-
        for (uint8_t channel = 0; channel <= 0xF; channel++) {
-               ev[0] = (MIDI_CMD_CONTROL | channel);
+
+               uint8_t ev[3] = { ((uint8_t) (MIDI_CMD_CONTROL | channel)), MIDI_CTL_SUSTAIN, 0 };
 
                /* we need to send all notes off AND turn the
                 * sustain/damper pedal off to handle synths
                 * that prioritize sustain over AllNotesOff
                 */
 
-               ev[1] = MIDI_CTL_SUSTAIN;
-
-               if (jack_midi_event_write (jack_buffer, when, ev, 3) != 0) {
-                       cerr << "failed to deliver sustain-zero on channel " << channel << " on port " << name() << endl;
+               if (port_engine.midi_event_put (port_buffer, when, ev, 3) != 0) {
+                       cerr << "failed to deliver sustain-zero on channel " << (int)channel << " on port " << name() << endl;
                }
 
                ev[1] = MIDI_CTL_ALL_NOTES_OFF;
 
-               if (jack_midi_event_write (jack_buffer, 0, ev, 3) != 0) {
-                       cerr << "failed to deliver ALL NOTES OFF on channel " << channel << " on port " << name() << endl;
+               if (port_engine.midi_event_put (port_buffer, 0, ev, 3) != 0) {
+                       cerr << "failed to deliver ALL NOTES OFF on channel " << (int)channel << " on port " << name() << endl;
                }
        }
 }
 
 void
-MidiPort::flush_buffers (pframes_t nframes, framepos_t time)
+MidiPort::flush_buffers (pframes_t nframes)
 {
        if (sends_output ()) {
 
-               void* jack_buffer = jack_port_get_buffer (_jack_port, nframes);
-
+               void* port_buffer = 0;
+               
                if (_resolve_required) {
+                       port_buffer = port_engine.get_buffer (_port_handle, nframes);
                        /* resolve all notes at the start of the buffer */
-                       resolve_notes (jack_buffer, 0);
-                       _resolve_required= false;
+                       resolve_notes (port_buffer, 0);
+                       _resolve_required = false;
+               } 
+               
+               if (_buffer->empty()) {
+                       return;
+               }
+
+               if (!port_buffer) {
+                       port_buffer = port_engine.get_buffer (_port_handle, nframes);
                }
 
                for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) {
@@ -168,24 +199,31 @@ MidiPort::flush_buffers (pframes_t nframes, framepos_t time)
 
                        assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset));
 
-                       if (ev.event_type() == LoopEventType) {
-                               resolve_notes (jack_buffer, ev.time());
-                               continue;
-                       }
-
                        if (ev.time() >= _global_port_buffer_offset + _port_buffer_offset) {
-                               if (jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size()) != 0) {
+                               if (port_engine.midi_event_put (port_buffer, (pframes_t) ev.time(), ev.buffer(), ev.size()) != 0) {
                                        cerr << "write failed, drop flushed note off on the floor, time "
                                             << ev.time() << " > " << _global_port_buffer_offset + _port_buffer_offset << endl;
                                }
                        } else {
                                cerr << "drop flushed event on the floor, time " << ev.time()
-                                    << " < " << _global_port_buffer_offset + _port_buffer_offset << endl;
+                                    << " to early for " << _global_port_buffer_offset 
+                                    << " + " << _port_buffer_offset << endl;
                        }
                }
+
+               /* done.. the data has moved to the port buffer, mark it so 
+                */
+
+               _buffer->clear ();
        }
 }
 
+void
+MidiPort::require_resolve ()
+{
+       _resolve_required = true;
+}
+
 void
 MidiPort::transport_stopped ()
 {
@@ -203,5 +241,18 @@ MidiPort::reset ()
 {
        Port::reset ();
        delete _buffer;
+       cerr << name() << " new MIDI buffer of size " << AudioEngine::instance()->raw_buffer_size (DataType::MIDI) << endl;
        _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI));
 }
+
+void
+MidiPort::set_input_active (bool yn)
+{
+       _input_active = yn;
+}
+
+void
+MidiPort::set_always_parse (bool yn)
+{
+       _always_parse = yn;
+}