fix crash when copy'ing latent plugins
[ardour.git] / libs / ardour / midi_port.cc
index 63004f658b975c7f7f13311fbb8a0a47ec05f435..2942aded75012b34e6b2114e5468bc5f38613642 100644 (file)
 #include <cassert>
 #include <iostream>
 
-#include "ardour/midi_port.h"
-#include "ardour/data_type.h"
+#include "pbd/compose.h"
+#include "pbd/debug.h"
+
 #include "ardour/audioengine.h"
+#include "ardour/data_type.h"
+#include "ardour/debug.h"
+#include "ardour/midi_buffer.h"
+#include "ardour/midi_port.h"
 
-using namespace ARDOUR;
 using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
+
+#define port_engine AudioEngine::instance()->port_engine()
 
-MidiPort::MidiPort (const std::string& name, Flags flags)
+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)
+       , _trace_on (false)
 {
        _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI));
 }
@@ -43,15 +53,39 @@ 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 || (receives_input() && _trace_on)) {
+               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]);
+                       }
+               }
+       }
+}
+
+Buffer&
+MidiPort::get_buffer (pframes_t nframes)
+{
+       return get_midi_buffer (nframes);
 }
 
 MidiBuffer &
@@ -65,37 +99,41 @@ MidiPort::get_midi_buffer (pframes_t nframes)
 
                if (_input_active) {
 
-                       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
+                       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) {
-                               
-                               jack_midi_event_t ev;
-                               
-                               jack_midi_event_get (&ev, jack_buffer, i);
-                               
-                               if (ev.buffer[0] == 0xfe) {
+
+                               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;
+                               } else if ((buf[0] & 0xF0) == 0x90 && buf[2] == 0) {
+                                       /* normalize note on with velocity 0 to proper note off */
+                                       buf[0] = 0x80 | (buf[0] & 0x0F);  /* note off */
+                                       buf[2] = 0x40;  /* default velocity */
                                }
-                               
+
                                /* check that the event is in the acceptable time range */
-                               
-                               if ((ev.time >= (_global_port_buffer_offset + _port_buffer_offset)) &&
-                                   (ev.time < (_global_port_buffer_offset + _port_buffer_offset + nframes))) {
-                                       _buffer->push_back (ev);
+
+                               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 " << ev.time << "; offset="
+                                       cerr << "Dropping incoming MIDI at time " << timestamp << "; offset="
                                             << _global_port_buffer_offset << " limit="
                                             << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n";
                                }
-                       } 
+                       }
 
                } else {
                        _buffer->silence (nframes);
@@ -112,7 +150,6 @@ MidiPort::get_midi_buffer (pframes_t nframes)
        return *_buffer;
 }
 
-
 void
 MidiPort::cycle_end (pframes_t /*nframes*/)
 {
@@ -126,7 +163,7 @@ MidiPort::cycle_split ()
 }
 
 void
-MidiPort::resolve_notes (void* jack_buffer, MidiBuffer::TimeType when)
+MidiPort::resolve_notes (void* port_buffer, MidiBuffer::TimeType when)
 {
        for (uint8_t channel = 0; channel <= 0xF; channel++) {
 
@@ -137,14 +174,14 @@ MidiPort::resolve_notes (void* jack_buffer, MidiBuffer::TimeType when)
                 * that prioritize sustain over AllNotesOff
                 */
 
-               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, when, ev, 3) != 0) {
+                       cerr << "failed to deliver ALL NOTES OFF on channel " << (int)channel << " on port " << name() << endl;
                }
        }
 }
@@ -154,37 +191,82 @@ 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_notes (port_buffer, _global_port_buffer_offset);
                        _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) {
 
                        const Evoral::MIDIEvent<MidiBuffer::TimeType> ev (*i, false);
 
-                       // event times are in frames, relative to cycle start
 
-                       assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset));
+                       if (sends_output() && _trace_on) {
+                               uint8_t const * const buf = ev.buffer();
+                               const framepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
+
+                               _self_parser.set_timestamp (now + ev.time());
+
+                               uint32_t limit = ev.size();
+
+                               for (size_t n = 0; n < limit; ++n) {
+                                       _self_parser.scanner (buf[n]);
+                               }
+                       }
+
+
+                       // event times are in frames, relative to cycle start
 
-                       if (ev.event_type() == LoopEventType) {
-                               resolve_notes (jack_buffer, ev.time());
-                               continue;
+#ifndef NDEBUG
+                       if (DEBUG_ENABLED (DEBUG::MidiIO)) {
+                               DEBUG_STR_DECL(a);
+                               DEBUG_STR_APPEND(a, string_compose ("MidiPort %1 pop event    @ %2 sz %3 ", _buffer, ev.time(), ev.size()));
+                               for (size_t i=0; i < ev.size(); ++i) {
+                                       DEBUG_STR_APPEND(a,hex);
+                                       DEBUG_STR_APPEND(a,"0x");
+                                       DEBUG_STR_APPEND(a,(int)(ev.buffer()[i]));
+                                       DEBUG_STR_APPEND(a,' ');
+                               }
+                               DEBUG_STR_APPEND(a,'\n');
+                               DEBUG_TRACE (DEBUG::MidiIO, DEBUG_STR(a).str());
                        }
+#endif
+
+                       assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset));
 
                        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
-                                    << " to early for " << _global_port_buffer_offset + _port_buffer_offset << endl;
+                               cerr << "drop flushed event on the floor, time " << ev.time()
+                                    << " too early for " << _global_port_buffer_offset
+                                    << " + " << _port_buffer_offset;
+                               for (size_t xx = 0; xx < ev.size(); ++xx) {
+                                       cerr << ' ' << hex << (int) ev.buffer()[xx];
+                               }
+                               cerr << dec << endl;
                        }
                }
+
+               /* done.. the data has moved to the port buffer, mark it so
+                */
+
+               _buffer->clear ();
        }
 }
 
@@ -211,6 +293,7 @@ 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));
 }
 
@@ -219,3 +302,15 @@ MidiPort::set_input_active (bool yn)
 {
        _input_active = yn;
 }
+
+void
+MidiPort::set_always_parse (bool yn)
+{
+       _always_parse = yn;
+}
+
+void
+MidiPort::set_trace_on (bool yn)
+{
+       _trace_on = yn;
+}