/*
- 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 "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, bool external, nframes_t capacity)
- : Port (name, flags)
- , BaseMidiPort (name, flags)
- , PortFacade (name, 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)
{
- // 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 (AudioEngine::instance()->raw_buffer_size (DataType::MIDI));
}
MidiPort::~MidiPort()
{
- delete _ext_port;
- _ext_port = 0;
+ delete _buffer;
}
void
-MidiPort::reset()
+MidiPort::cycle_start (pframes_t nframes)
{
- BaseMidiPort::reset();
+ framepos_t now = AudioEngine::instance()->sample_time_at_cycle_start();
+
+ Port::cycle_start (nframes);
+
+ _buffer->clear ();
+
+ if (sends_output ()) {
+ 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 */
- if (_ext_port) {
- _ext_port->reset ();
+ 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]);
+ }
+ }
}
}
-void
-MidiPort::cycle_start (nframes_t nframes, nframes_t offset)
+Buffer&
+MidiPort::get_buffer (pframes_t nframes)
{
- if (_ext_port) {
- _ext_port->cycle_start (nframes, offset);
- }
+ return get_midi_buffer (nframes);
}
MidiBuffer &
-MidiPort::get_midi_buffer( nframes_t nframes, nframes_t 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(nframes,offset) == _buffer);
-
- if (!_connections.empty()) {
- (*_mixdown) (_connections, _buffer, nframes, offset, false);
+MidiPort::get_midi_buffer (pframes_t nframes)
+{
+ if (_has_been_mixed_down) {
+ return *_buffer;
+ }
+
+ if (receives_input ()) {
+
+ if (_input_active) {
+
+ 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) {
+
+ 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 ((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 " << timestamp << "; offset="
+ << _global_port_buffer_offset << " limit="
+ << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n";
+ }
}
} else {
-
- if (_connections.empty()) {
- _buffer->silence (nframes, offset);
- } else {
- (*_mixdown) (_connections, _buffer, nframes, offset, true);
- }
+ _buffer->silence (nframes);
}
} else {
- _buffer->silence (nframes, offset);
+ _buffer->silence (nframes);
}
- if (nframes)
+
+ if (nframes) {
_has_been_mixed_down = true;
+ }
return *_buffer;
}
-
void
-MidiPort::cycle_end (nframes_t nframes, nframes_t offset)
+MidiPort::cycle_end (pframes_t /*nframes*/)
{
- if (_ext_port) {
- _ext_port->cycle_end (nframes, offset);
- }
_has_been_mixed_down = false;
}
void
-MidiPort::flush_buffers (nframes_t nframes, nframes_t offset)
+MidiPort::cycle_split ()
+{
+ _has_been_mixed_down = false;
+}
+
+void
+MidiPort::resolve_notes (void* port_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 (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 (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;
+ }
+ }
+}
+
+void
+MidiPort::flush_buffers (pframes_t nframes)
{
- if (_ext_port) {
- _ext_port->flush_buffers (nframes, offset);
+ if (sends_output ()) {
+
+ 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 (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);
+
+
+ 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
+
+#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 (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.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 ();
}
}
+
+void
+MidiPort::require_resolve ()
+{
+ _resolve_required = true;
+}
+
+void
+MidiPort::transport_stopped ()
+{
+ _resolve_required = true;
+}
+
+void
+MidiPort::realtime_locate ()
+{
+ _resolve_required = true;
+}
+
+void
+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));
+}
+
+void
+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;
+}
projects / ardour.git / blobdiff