#include "ardour/midi_port.h"
#include "ardour/data_type.h"
+#include "ardour/audioengine.h"
using namespace ARDOUR;
using namespace std;
MidiPort::MidiPort (const std::string& name, Flags flags)
: Port (name, DataType::MIDI, flags)
, _has_been_mixed_down (false)
+ , _resolve_required (false)
+ , _input_active (true)
{
- _buffer = new MidiBuffer (raw_buffer_size(0));
+ _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI));
}
MidiPort::~MidiPort()
}
void
-MidiPort::cycle_start (nframes_t nframes)
+MidiPort::cycle_start (pframes_t nframes)
{
+ Port::cycle_start (nframes);
+
_buffer->clear ();
- assert (_buffer->size () == 0);
if (sends_output ()) {
jack_midi_clear_buffer (jack_port_get_buffer (_jack_port, nframes));
}
MidiBuffer &
-MidiPort::get_midi_buffer (nframes_t nframes, nframes_t offset)
+MidiPort::get_midi_buffer (pframes_t nframes)
{
if (_has_been_mixed_down) {
return *_buffer;
if (receives_input ()) {
- void* jack_buffer = jack_port_get_buffer (_jack_port, nframes);
- const nframes_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
- */
-
- nframes_t off = offset + _port_offset;
-
- for (nframes_t i = 0; i < event_count; ++i) {
-
- jack_midi_event_t ev;
-
- jack_midi_event_get (&ev, jack_buffer, i);
-
- if (ev.time > off && ev.time < off+nframes) {
- _buffer->push_back (ev);
- }
- }
-
- if (nframes) {
- _has_been_mixed_down = true;
+ 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);
+
+ /* 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 ((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 {
void
-MidiPort::cycle_end (nframes_t /*nframes*/)
+MidiPort::cycle_end (pframes_t /*nframes*/)
{
_has_been_mixed_down = false;
}
}
void
-MidiPort::flush_buffers (nframes_t nframes, nframes_t offset)
+MidiPort::resolve_notes (void* jack_buffer, MidiBuffer::TimeType when)
+{
+ for (uint8_t channel = 0; channel <= 0xF; 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
+ */
+
+ if (jack_midi_event_write (jack_buffer, when, ev, 3) != 0) {
+ cerr << "failed to deliver sustain-zero on channel " << 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;
+ }
+ }
+}
+
+void
+MidiPort::flush_buffers (pframes_t nframes)
{
if (sends_output ()) {
void* jack_buffer = jack_port_get_buffer (_jack_port, nframes);
+ if (_resolve_required) {
+ /* resolve all notes at the start of the buffer */
+ resolve_notes (jack_buffer, 0);
+ _resolve_required = false;
+ }
+
for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) {
- const Evoral::Event<nframes_t>& ev = *i;
- // event times are in frames, relative to cycle start
+ const Evoral::MIDIEvent<MidiBuffer::TimeType> ev (*i, false);
- // XXX split cycle start or cycle start?
+ // event times are in frames, relative to cycle start
- assert(ev.time() < (nframes+offset+_port_offset));
+ assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset));
- if (ev.time() >= offset + _port_offset) {
- jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size());
+ 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) {
+ 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;
}
}
}
}
-size_t
-MidiPort::raw_buffer_size (nframes_t nframes) const
+void
+MidiPort::require_resolve ()
+{
+ _resolve_required = true;
+}
+
+void
+MidiPort::transport_stopped ()
+{
+ _resolve_required = true;
+}
+
+void
+MidiPort::realtime_locate ()
{
- return jack_midi_max_event_size(jack_port_get_buffer(_jack_port, nframes));
+ _resolve_required = true;
}
+void
+MidiPort::reset ()
+{
+ Port::reset ();
+ delete _buffer;
+ _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI));
+}
+
+void
+MidiPort::set_input_active (bool yn)
+{
+ _input_active = yn;
+}
projects / ardour.git / blobdiff