/*
- Copyright (C) 2006 Paul Davis
+ Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <cassert>
#include <iostream>
-#include <ardour/midi_port.h>
-#include <ardour/jack_midi_port.h>
-#include <ardour/data_type.h>
+#include "ardour/midi_port.h"
+#include "ardour/data_type.h"
using namespace ARDOUR;
using namespace std;
-MidiPort::MidiPort (const std::string& name, Flags flags, bool external, nframes_t capacity)
- : Port (name, flags)
- , BaseMidiPort (name, flags)
- , PortFacade (name, flags)
+MidiPort::MidiPort (const std::string& name, Flags flags)
+ : Port (name, DataType::MIDI, flags)
+ , _has_been_mixed_down (false)
+ , _resolve_in_process (false)
{
- // FIXME: size kludge (see BufferSet::ensure_buffers)
- // Jack needs to tell us this
- _buffer = new MidiBuffer (capacity * 8);
-
- if (external) {
- /* external ports use the same buffer for the jack port (_ext_port)
- * and internal ports (this) */
- _ext_port = new JackMidiPort (name, flags, _buffer);
- Port::set_name (_ext_port->name());
- } else {
- /* internal ports just have a single buffer, no jack port */
- _ext_port = 0;
- set_name (name);
- }
-
- reset ();
+ _buffer = new MidiBuffer (raw_buffer_size(0));
}
MidiPort::~MidiPort()
{
- if (_ext_port) {
- delete _ext_port;
- _ext_port = 0;
- }
+ delete _buffer;
}
void
-MidiPort::reset()
+MidiPort::cycle_start (nframes_t nframes)
{
- BaseMidiPort::reset();
+ _buffer->clear ();
+ assert (_buffer->size () == 0);
- if (_ext_port) {
- _ext_port->reset ();
+ if (sends_output ()) {
+ jack_midi_clear_buffer (jack_port_get_buffer (_jack_port, nframes));
}
}
-void
-MidiPort::cycle_start (nframes_t nframes, nframes_t offset)
+MidiBuffer &
+MidiPort::get_midi_buffer (nframes_t nframes, nframes_t offset)
{
- if (_ext_port) {
- _ext_port->cycle_start (nframes, offset);
+ if (_has_been_mixed_down) {
+ return *_buffer;
}
-
- if (_flags & IsInput) {
-
- if (_ext_port) {
-
- BaseMidiPort* mprt = dynamic_cast<BaseMidiPort*>(_ext_port);
- assert(mprt);
- assert(&mprt->get_midi_buffer() == _buffer);
-
- if (!_connections.empty()) {
- (*_mixdown) (_connections, _buffer, nframes, offset, false);
- }
- } else {
-
- if (_connections.empty()) {
- _buffer->silence (nframes, offset);
- } else {
- (*_mixdown) (_connections, _buffer, nframes, offset, true);
+ 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;
+ }
+
} else {
-
- _buffer->silence (nframes, offset);
+ _buffer->silence (nframes);
+ }
+
+ if (nframes) {
+ _has_been_mixed_down = true;
}
+
+ return *_buffer;
+}
+
+
+void
+MidiPort::cycle_end (nframes_t /*nframes*/)
+{
+ _has_been_mixed_down = false;
}
-
void
-MidiPort::cycle_end (nframes_t nframes, nframes_t offset)
+MidiPort::cycle_split ()
{
- if (_ext_port) {
- _ext_port->cycle_end (nframes, offset);
+ _has_been_mixed_down = false;
+}
+
+void
+MidiPort::flush_buffers (nframes_t nframes, nframes64_t time, nframes_t offset)
+{
+ if (sends_output ()) {
+
+ void* jack_buffer = jack_port_get_buffer (_jack_port, nframes);
+
+ // Feed the data through the MidiStateTracker
+ bool did_loop;
+
+ _midi_state_tracker.track (_buffer->begin(), _buffer->end(), did_loop);
+
+ if (did_loop || _resolve_in_process) {
+ /* add necessary note offs */
+ _midi_state_tracker.resolve_notes (*_buffer, time);
+ }
+
+ _resolve_in_process = 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
+
+ // XXX split cycle start or cycle start?
+
+ assert(ev.time() < (nframes+offset+_port_offset));
+
+ if (ev.time() >= offset + _port_offset) {
+ jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size());
+ }
+ }
}
}
+void
+MidiPort::transport_stopped ()
+{
+ _resolve_in_process = true;
+}
+
+size_t
+MidiPort::raw_buffer_size (nframes_t nframes) const
+{
+ return jack_midi_max_event_size(jack_port_get_buffer(_jack_port, nframes));
+}
+
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