X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_port.cc;h=7a87c4c273f8e91dd16de8ddbbef1a53119f9feb;hb=6bc95465d6137da74907bb528861681deec7b2df;hp=55280eb9428e82aed7fc611a53d866991f0b0b82;hpb=e7c47747286c16aa575456b07120e1e8e8271bd5;p=ardour.git diff --git a/libs/ardour/midi_port.cc b/libs/ardour/midi_port.cc index 55280eb942..7a87c4c273 100644 --- a/libs/ardour/midi_port.cc +++ b/libs/ardour/midi_port.cc @@ -19,12 +19,19 @@ #include #include -#include "ardour/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" +#include "ardour/session.h" -using namespace ARDOUR; using namespace std; +using namespace ARDOUR; +using namespace PBD; #define port_engine AudioEngine::instance()->port_engine() @@ -34,12 +41,18 @@ MidiPort::MidiPort (const std::string& name, PortFlags flags) , _resolve_required (false) , _input_active (true) , _always_parse (false) + , _trace_on (false) { _buffer = new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI)); } MidiPort::~MidiPort() { + if (_shadow_port) { + AudioEngine::instance()->unregister_port (_shadow_port); + _shadow_port.reset (); + } + delete _buffer; } @@ -52,27 +65,46 @@ MidiPort::cycle_start (pframes_t nframes) _buffer->clear (); - if (sends_output ()) { + if (sends_output () && _port_handle) { port_engine.midi_clear (port_engine.get_buffer (_port_handle, nframes)); } - if (_always_parse) { + if (_always_parse || (receives_input() && _trace_on)) { MidiBuffer& mb (get_midi_buffer (nframes)); /* dump incoming MIDI to parser */ - + 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]); } } } + + 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& +MidiPort::get_buffer (pframes_t nframes) +{ + return get_midi_buffer (nframes); } MidiBuffer & @@ -94,29 +126,38 @@ MidiPort::get_midi_buffer (pframes_t nframes) */ for (pframes_t i = 0; i < event_count; ++i) { - + 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; } - + /* 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 { + 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) << "\n"; + << _global_port_buffer_offset << " limit=" + << (_global_port_buffer_offset + _port_buffer_offset + nframes) << "\n"; + continue; } - } + + 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 { + _buffer->push_back (timestamp, size, buf); + } + } } else { _buffer->silence (nframes); @@ -163,7 +204,7 @@ MidiPort::resolve_notes (void* port_buffer, MidiBuffer::TimeType when) 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; } } @@ -175,14 +216,14 @@ MidiPort::flush_buffers (pframes_t nframes) 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, 0); + resolve_notes (port_buffer, _global_port_buffer_offset); _resolve_required = false; - } - + } + if (_buffer->empty()) { return; } @@ -191,12 +232,46 @@ MidiPort::flush_buffers (pframes_t nframes) port_buffer = port_engine.get_buffer (_port_handle, nframes); } + for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) { - const Evoral::MIDIEvent ev (*i, false); + const Evoral::Event 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)) { + const Session* s = AudioEngine::instance()->session(); + const framepos_t now = (s ? s->transport_frame() : 0); + DEBUG_STR_DECL(a); + 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"); + 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) { @@ -206,12 +281,16 @@ MidiPort::flush_buffers (pframes_t nframes) } } else { cerr << "drop flushed event on the floor, time " << ev.time() - << " to early for " << _global_port_buffer_offset - << " + " << _port_buffer_offset << endl; + << " 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 + /* done.. the data has moved to the port buffer, mark it so */ _buffer->clear (); @@ -256,3 +335,37 @@ MidiPort::set_always_parse (bool yn) { _always_parse = yn; } + +void +MidiPort::set_trace_on (bool yn) +{ + _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 (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; +}