diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2013-08-07 22:22:11 -0400 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2013-08-07 22:22:11 -0400 |
commit | 1ab61b8564f9934c533d1c1a229888bc7e2fd557 (patch) | |
tree | baa1b05b50c018ca0edbda936b35de58adb29d94 /libs/ardour/ticker.cc | |
parent | 83a0c30c24ce6bb6e3e718c267a82fbaffc33b4b (diff) |
major redesign of MIDI port heirarchy and management (part 2)
Diffstat (limited to 'libs/ardour/ticker.cc')
-rw-r--r-- | libs/ardour/ticker.cc | 180 |
1 files changed, 87 insertions, 93 deletions
diff --git a/libs/ardour/ticker.cc b/libs/ardour/ticker.cc index f32cdf9415..0ed4427b72 100644 --- a/libs/ardour/ticker.cc +++ b/libs/ardour/ticker.cc @@ -19,13 +19,12 @@ #include "pbd/compose.h" #include "pbd/stacktrace.h" -#include "midi++/port.h" -#include "midi++/jack_midi_port.h" -#include "midi++/manager.h" - #include "evoral/midi_events.h" +#include "ardour/async_midi_port.h" #include "ardour/audioengine.h" +#include "ardour/midi_buffer.h" +#include "ardour/midi_port.h" #include "ardour/ticker.h" #include "ardour/session.h" #include "ardour/tempo.h" @@ -95,16 +94,16 @@ public: MidiClockTicker::MidiClockTicker () - : _midi_port (0) - , _ppqn (24) + : _ppqn (24) , _last_tick (0.0) + , _send_pos (false) + , _send_state (false) { _pos.reset (new Position()); } MidiClockTicker::~MidiClockTicker() { - _midi_port = 0; _pos.reset (0); } @@ -115,7 +114,6 @@ MidiClockTicker::set_session (Session* s) if (_session) { _session->TransportStateChange.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::transport_state_changed, this)); - _session->PositionChanged.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::position_changed, this, _1)); _session->TransportLooped.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::transport_looped, this)); _session->Located.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::session_located, this)); @@ -139,41 +137,20 @@ MidiClockTicker::session_located() return; } - if (_pos->speed == 0.0f) { - uint32_t where = llrint (_pos->midi_beats); - send_position_event (where, 0); - } else if (_pos->speed == 1.0f) { -#if 1 - /* Experimental. To really do this and have accuracy, the - stop/locate/continue sequence would need queued to send immediately - before the next midi clock. */ - - send_stop_event (0); - - if (_pos->frame == 0) { - send_start_event (0); - } else { - uint32_t where = llrint (_pos->midi_beats); - send_position_event (where, 0); - send_continue_event (0); - } -#endif - } else { - /* Varispeed not supported */ - } + _send_pos = true; } void MidiClockTicker::session_going_away () { SessionHandlePtr::session_going_away(); - _midi_port = 0; + _midi_port.reset (); } void MidiClockTicker::update_midi_clock_port() { - _midi_port = MIDI::Manager::instance()->midi_clock_output_port(); + _midi_port = AudioEngine::instance()->midi_clock_output_port(); } void @@ -204,49 +181,12 @@ MidiClockTicker::transport_state_changed() return; } - if (_pos->speed == 1.0f) { - - if (_session->get_play_loop()) { - assert(_session->locations()->auto_loop_location()); - - if (_pos->frame == _session->locations()->auto_loop_location()->start()) { - send_start_event(0); - } else { - send_continue_event(0); - } - - } else if (_pos->frame == 0) { - send_start_event(0); - } else { - send_continue_event(0); - } - - // send_midi_clock_event (0); - - } else if (_pos->speed == 0.0f) { - send_stop_event (0); - send_position_event (llrint (_pos->midi_beats), 0); - } + _send_state = true; // tick (_pos->frame); } void -MidiClockTicker::position_changed (framepos_t) -{ -#if 0 - const double speed = _session->transport_speed(); - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Transport Position Change: %1, speed: %2\n", position, speed)); - - if (speed == 0.0f && Config->get_send_midi_clock()) { - send_position_event (position, 0); - } - - _last_tick = position; -#endif -} - -void MidiClockTicker::transport_looped() { Location* loop_location = _session->locations()->auto_loop_location(); @@ -270,18 +210,68 @@ MidiClockTicker::transport_looped() } void -MidiClockTicker::tick (const framepos_t& /* transport_frame */) +MidiClockTicker::tick (const framepos_t& /* transport_frame */, pframes_t nframes) { if (!Config->get_send_midi_clock() || _session == 0 || _session->transport_speed() != 1.0f || _midi_port == 0) { return; } - MIDI::JackMIDIPort* mp = dynamic_cast<MIDI::JackMIDIPort*> (_midi_port); - if (! mp) { - return; + if (_send_pos) { + if (_pos->speed == 0.0f) { + uint32_t where = llrint (_pos->midi_beats); + send_position_event (where, 0, nframes); + } else if (_pos->speed == 1.0f) { +#if 1 + /* Experimental. To really do this and have accuracy, the + stop/locate/continue sequence would need queued to send immediately + before the next midi clock. */ + + send_stop_event (0, nframes); + + if (_pos->frame == 0) { + send_start_event (0, nframes); + } else { + uint32_t where = llrint (_pos->midi_beats); + send_position_event (where, 0, nframes); + send_continue_event (0, nframes); + } +#endif + } else { + /* Varispeed not supported */ + } + + _send_pos = true; } - const framepos_t end = _pos->frame + mp->nframes_this_cycle(); + if (_send_state) { + if (_pos->speed == 1.0f) { + if (_session->get_play_loop()) { + assert(_session->locations()->auto_loop_location()); + + if (_pos->frame == _session->locations()->auto_loop_location()->start()) { + send_start_event (0, nframes); + } else { + send_continue_event (0, nframes); + } + + } else if (_pos->frame == 0) { + send_start_event (0, nframes); + } else { + send_continue_event (0, nframes); + } + + // send_midi_clock_event (0); + + } else if (_pos->speed == 0.0f) { + send_stop_event (0, nframes); + send_position_event (llrint (_pos->midi_beats), 0, nframes); + } + + _send_state = false; + } + + + const framepos_t end = _pos->frame + nframes; double iter = _last_tick; while (true) { @@ -291,14 +281,14 @@ MidiClockTicker::tick (const framepos_t& /* transport_frame */) DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Tick: iter: %1, last tick time: %2, next tick time: %3, offset: %4, cycle length: %5\n", - iter, _last_tick, next_tick, next_tick_offset, mp ? mp->nframes_this_cycle() : 0)); + iter, _last_tick, next_tick, next_tick_offset, nframes)); - if (!mp || (next_tick_offset >= mp->nframes_this_cycle())) { + if (next_tick_offset >= nframes) { break; } if (next_tick_offset >= 0) { - send_midi_clock_event (next_tick_offset); + send_midi_clock_event (next_tick_offset, nframes); } iter = next_tick; @@ -308,7 +298,6 @@ MidiClockTicker::tick (const framepos_t& /* transport_frame */) _pos->frame = end; } - double MidiClockTicker::one_ppqn_in_frames (framepos_t transport_position) { @@ -322,7 +311,7 @@ MidiClockTicker::one_ppqn_in_frames (framepos_t transport_position) } void -MidiClockTicker::send_midi_clock_event (pframes_t offset) +MidiClockTicker::send_midi_clock_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; @@ -330,12 +319,13 @@ MidiClockTicker::send_midi_clock_event (pframes_t offset) DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Tick with offset %1\n", offset)); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CLOCK }; - _midi_port->write (_midi_clock_tick, 1, offset); + static uint8_t tick_byte = { MIDI_CMD_COMMON_CLOCK }; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &tick_byte); } void -MidiClockTicker::send_start_event (pframes_t offset) +MidiClockTicker::send_start_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; @@ -343,12 +333,13 @@ MidiClockTicker::send_start_event (pframes_t offset) DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Start %1\n", _last_tick)); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_START }; - _midi_port->write (_midi_clock_tick, 1, offset); + static uint8_t tick_byte = { MIDI_CMD_COMMON_START }; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &tick_byte); } void -MidiClockTicker::send_continue_event (pframes_t offset) +MidiClockTicker::send_continue_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; @@ -356,12 +347,13 @@ MidiClockTicker::send_continue_event (pframes_t offset) DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Continue %1\n", _last_tick)); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CONTINUE }; - _midi_port->write (_midi_clock_tick, 1, offset); + static uint8_t tick_byte = { MIDI_CMD_COMMON_CONTINUE }; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &tick_byte); } void -MidiClockTicker::send_stop_event (pframes_t offset) +MidiClockTicker::send_stop_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; @@ -369,12 +361,13 @@ MidiClockTicker::send_stop_event (pframes_t offset) DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Stop %1\n", _last_tick)); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_STOP }; - _midi_port->write (_midi_clock_tick, 1, offset); + static uint8_t tick_byte = { MIDI_CMD_COMMON_STOP }; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &tick_byte); } void -MidiClockTicker::send_position_event (uint32_t midi_beats, pframes_t offset) +MidiClockTicker::send_position_event (uint32_t midi_beats, pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; @@ -391,7 +384,8 @@ MidiClockTicker::send_position_event (uint32_t midi_beats, pframes_t offset) msg[1] = midi_beats & 0x007f; msg[2] = midi_beats >> 7; - _midi_port->midimsg (msg, sizeof (msg), offset); + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 3, &msg[0]); DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Song Position Sent: %1\n", midi_beats)); } |