#include <ardour/jack_midi_port.h>
using namespace ARDOUR;
-JackMidiPort::JackMidiPort (const std::string& name, Flags flgs)
- : Port (DataType::MIDI, flgs)
+JackMidiPort::JackMidiPort (const std::string& name, Flags flgs, MidiBuffer* buf)
+ : Port (name, flgs)
, JackPort (name, DataType::MIDI, flgs)
- , MidiPort (flgs, 4096) // FIXME FIXME FIXME Jack needs to tell us this
- , _nframes_this_cycle(0)
+ , BaseMidiPort (name, flgs)
+ , _has_been_mixed_down (false)
{
+ // MIDI ports always need a buffer since jack buffer format is different
+ assert(buf);
+
+ _buffer = buf;
+ _own_buffer = false;
}
void
-JackMidiPort::cycle_start (nframes_t nframes)
+JackMidiPort::cycle_start (nframes_t nframes, nframes_t offset)
{
- _buffer.clear();
- assert(_buffer.size() == 0);
+ /* FIXME: offset */
- _nframes_this_cycle = nframes;
+ _buffer->clear();
+ assert(_buffer->size() == 0);
- if (_flags & JackPortIsOutput) {
- _buffer.silence(nframes);
- assert(_buffer.size() == 0);
+ if (_flags & IsInput) {
return;
}
+ // We're an output - delete the midi_events.
+
+ void* jack_buffer = jack_port_get_buffer (_port, nframes);
+
+ jack_midi_clear_buffer (jack_buffer);
+}
+
+MidiBuffer &
+JackMidiPort::get_midi_buffer( nframes_t nframes, nframes_t offset ) {
+
+ if (_has_been_mixed_down)
+ return *_buffer;
+
+ if (_flags & IsOutput) {
+ return *_buffer;
+ }
+
// We're an input - copy Jack events to internal buffer
void* jack_buffer = jack_port_get_buffer(_port, nframes);
- const nframes_t event_count
- = jack_midi_get_event_count(jack_buffer);
+ const nframes_t event_count = jack_midi_get_event_count(jack_buffer);
- assert(event_count < _buffer.capacity());
+ assert(event_count < _buffer->capacity());
jack_midi_event_t ev;
for (nframes_t i=0; i < event_count; ++i) {
- jack_midi_event_get(&ev, jack_buffer, i);
+ jack_midi_event_get (&ev, jack_buffer, i);
- _buffer.push_back(ev);
+ // i guess this should do but i leave it off to test the rest first.
+ //if (ev.time > offset && ev.time < offset+nframes)
+ _buffer->push_back (ev);
}
- assert(_buffer.size() == event_count);
+ assert(_buffer->size() == event_count);
+
+ /*if (_buffer->size() > 0)
+ cerr << "JackMIDIPort got " << event_count << " events (buf " << _buffer << ")" << endl;*/
+ if (nframes)
+ _has_been_mixed_down = true;
- //if (_buffer.size() > 0)
- // cerr << "MIDIPort got " << event_count << " events." << endl;
+ return *_buffer;
}
void
-JackMidiPort::cycle_end()
+JackMidiPort::cycle_end (nframes_t nframes, nframes_t offset)
{
- if (_flags & JackPortIsInput) {
- _nframes_this_cycle = 0;
+ /* FIXME: offset */
+
+ _has_been_mixed_down = false;
+
+#if 0
+ if (_flags & IsInput) {
return;
}
- // We're an output - copy events from internal buffer to Jack buffer
+ // We're an output - copy events from source buffer to Jack buffer
- void* jack_buffer = jack_port_get_buffer(_port, _nframes_this_cycle);
+ void* jack_buffer = jack_port_get_buffer (_port, nframes);
- //const nframes_t event_count = _buffer.size();
- //if (event_count > 0)
- // cerr << "MIDIPort writing " << event_count << " events." << endl;
+ jack_midi_clear_buffer (jack_buffer);
- jack_midi_clear_buffer(jack_buffer);
+ for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) {
+ const Evoral::Event& ev = *i;
- for (MidiBuffer::iterator i = _buffer.begin(); i != _buffer.end(); ++i) {
- const MidiEvent& ev = *i;
// event times should be frames, relative to cycle start
assert(ev.time() >= 0);
- assert(ev.time() < _nframes_this_cycle);
- jack_midi_event_write(jack_buffer, (jack_nframes_t)ev.time(), ev.buffer(), ev.size());
+ assert(ev.time() < nframes);
+ jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size());
+ }
+#endif
+}
+
+void
+JackMidiPort::flush_buffers (nframes_t nframes, nframes_t offset)
+{
+ /* FIXME: offset */
+
+ if (_flags & IsInput) {
+ return;
+ }
+
+ void* jack_buffer = jack_port_get_buffer (_port, nframes);
+
+ for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) {
+ const Evoral::Event& ev = *i;
+ // event times should be frames, relative to cycle start
+ assert(ev.time() >= 0);
+ assert(ev.time() < (nframes+offset));
+ if (ev.time() >= offset)
+ jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size());
}
-
- _nframes_this_cycle = 0;
}