#include "ardour/debug.h"
#include "ardour/midi_buffer.h"
#include "ardour/midi_port.h"
+#include "ardour/session.h"
using namespace std;
using namespace ARDOUR;
MidiPort::~MidiPort()
{
+ if (_shadow_port) {
+ AudioEngine::instance()->unregister_port (_shadow_port);
+ _shadow_port.reset ();
+ }
+
delete _buffer;
}
void
MidiPort::cycle_start (pframes_t nframes)
{
- framepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
+ samplepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
Port::cycle_start (nframes);
_buffer->clear ();
- if (sends_output ()) {
+ if (sends_output () && _port_handle) {
port_engine.midi_clear (port_engine.get_buffer (_port_handle, nframes));
}
}
}
}
+
+ if (inbound_midi_filter) {
+ MidiBuffer& mb (get_midi_buffer (nframes));
+ inbound_midi_filter (mb, mb);
+ }
+
+ if (_shadow_port) {
+ MidiBuffer& mb (get_midi_buffer (nframes));
+ if (shadow_midi_filter (mb, _shadow_port->get_midi_buffer (nframes))) {
+ _shadow_port->flush_buffers (nframes);
+ }
+ }
+
}
Buffer&
pframes_t timestamp;
size_t size;
- uint8_t* buf;
+ uint8_t const* 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 ((timestamp < (_global_port_buffer_offset + _port_buffer_offset)) ||
+ (timestamp >= (_global_port_buffer_offset + _port_buffer_offset + nframes))) {
+ cerr << "Dropping incoming MIDI at time " << timestamp << "; offset="
+ << _global_port_buffer_offset << " limit="
+ << (_global_port_buffer_offset + _port_buffer_offset + nframes)
+ << " = (" << _global_port_buffer_offset
+ << " + " << _port_buffer_offset
+ << " + " << nframes
+ << ")\n";
+ continue;
+ }
- if ((timestamp >= (_global_port_buffer_offset + _port_buffer_offset)) &&
- (timestamp < (_global_port_buffer_offset + _port_buffer_offset + nframes))) {
- _buffer->push_back (timestamp, size, buf);
+ if ((buf[0] & 0xF0) == 0x90 && buf[2] == 0) {
+ /* normalize note on with velocity 0 to proper note off */
+ uint8_t ev[3];
+ ev[0] = 0x80 | (buf[0] & 0x0F); /* note off */
+ ev[1] = buf[1];
+ ev[2] = 0x40; /* default velocity */
+ _buffer->push_back (timestamp, size, ev);
} else {
- cerr << "Dropping incoming MIDI at time " << timestamp << "; offset="
- << _global_port_buffer_offset << " limit="
- << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n";
+ _buffer->push_back (timestamp, size, buf);
}
}
ev[1] = MIDI_CTL_ALL_NOTES_OFF;
- if (port_engine.midi_event_put (port_buffer, 0, ev, 3) != 0) {
+ 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;
}
}
for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) {
- const Evoral::MIDIEvent<MidiBuffer::TimeType> ev (*i, false);
+ const Evoral::Event<MidiBuffer::TimeType> ev (*i, false);
if (sends_output() && _trace_on) {
uint8_t const * const buf = ev.buffer();
- const framepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
+ const samplepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
_self_parser.set_timestamp (now + ev.time());
}
- // event times are in frames, relative to cycle start
+ // event times are in samples, relative to cycle start
#ifndef NDEBUG
if (DEBUG_ENABLED (DEBUG::MidiIO)) {
+ const Session* s = AudioEngine::instance()->session();
+ const samplepos_t now = (s ? s->transport_sample() : 0);
DEBUG_STR_DECL(a);
- DEBUG_STR_APPEND(a, string_compose ("MidiPort %1 pop event @ %2 sz %3 ", _buffer, ev.time(), ev.size()));
+ DEBUG_STR_APPEND(a, string_compose ("MidiPort %8 %1 pop event @ %2 (global %4, within %5 gpbo %6 pbo %7 sz %3 ", _buffer, ev.time(), ev.size(),
+ now + ev.time(), nframes, _global_port_buffer_offset, _port_buffer_offset, name()));
for (size_t i=0; i < ev.size(); ++i) {
DEBUG_STR_APPEND(a,hex);
DEBUG_STR_APPEND(a,"0x");
}
#endif
- assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset));
+ assert (ev.time() < (nframes + _global_port_buffer_offset));
- if (ev.time() >= _global_port_buffer_offset + _port_buffer_offset) {
- 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;
+ if (ev.time() >= _global_port_buffer_offset) {
+ if (port_engine.midi_event_put (port_buffer, (pframes_t) ev.time() + _port_buffer_offset, ev.buffer(), ev.size()) != 0) {
+ cerr << "write failed, dropped event, time "
+ << ev.time() << " + " << _port_buffer_offset
+ << " > " << _global_port_buffer_offset << endl;
}
} else {
cerr << "drop flushed event on the floor, time " << ev.time()
{
_trace_on = yn;
}
+
+int
+MidiPort::add_shadow_port (string const & name, MidiFilter mf)
+{
+ if (!ARDOUR::Port::receives_input()) {
+ return -1;
+ }
+
+ if (_shadow_port) {
+ return -2;
+ }
+
+ shadow_midi_filter = mf;
+
+ if (!(_shadow_port = boost::dynamic_pointer_cast<MidiPort> (AudioEngine::instance()->register_output_port (DataType::MIDI, name, false, PortFlags (Shadow|IsTerminal))))) {
+ return -3;
+ }
+
+ /* forward on our port latency to the shadow port.
+
+ XXX: need to capture latency changes and forward them too.
+ */
+
+ LatencyRange latency = private_latency_range (false);
+ _shadow_port->set_private_latency_range (latency, false);
+
+ return 0;
+}