/*
- Copyright (C) 2000-2003 Paul Davis
+ Copyright (C) 2000-2003 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
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id: diskstream.cc 567 2006-06-07 14:54:12Z trutkin $
*/
#include <fstream>
#include <fcntl.h>
#include <cstdlib>
#include <ctime>
+#include <strings.h> // for ffs(3)
#include <sys/stat.h>
#include <sys/mman.h>
-#include <pbd/error.h>
-#include <pbd/basename.h>
-#include <glibmm/thread.h>
-#include <pbd/xml++.h>
-#include <pbd/memento_command.h>
-
-#include <ardour/ardour.h>
-#include <ardour/audioengine.h>
-#include <ardour/midi_diskstream.h>
-#include <ardour/utils.h>
-#include <ardour/configuration.h>
-#include <ardour/smf_source.h>
-#include <ardour/destructive_filesource.h>
-#include <ardour/send.h>
-#include <ardour/midi_playlist.h>
-#include <ardour/cycle_timer.h>
-#include <ardour/midi_region.h>
-#include <ardour/midi_port.h>
+#include "pbd/error.h"
+#include "pbd/basename.h"
+#include <glibmm/threads.h>
+#include "pbd/xml++.h"
+#include "pbd/memento_command.h"
+#include "pbd/enumwriter.h"
+#include "pbd/stateful_diff_command.h"
+#include "pbd/stacktrace.h"
+
+#include "ardour/audioengine.h"
+#include "ardour/butler.h"
+#include "ardour/debug.h"
+#include "ardour/io.h"
+#include "ardour/midi_diskstream.h"
+#include "ardour/midi_model.h"
+#include "ardour/midi_playlist.h"
+#include "ardour/midi_port.h"
+#include "ardour/midi_region.h"
+#include "ardour/playlist_factory.h"
+#include "ardour/region_factory.h"
+#include "ardour/session.h"
+#include "ardour/session_playlists.h"
+#include "ardour/smf_source.h"
+#include "ardour/types.h"
+#include "ardour/utils.h"
+
+#include "midi++/types.h"
#include "i18n.h"
#include <locale.h>
using namespace ARDOUR;
using namespace PBD;
+framecnt_t MidiDiskstream::midi_readahead = 4096;
+
MidiDiskstream::MidiDiskstream (Session &sess, const string &name, Diskstream::Flag flag)
: Diskstream(sess, name, flag)
, _playback_buf(0)
, _capture_buf(0)
- //, _current_playback_buffer(0)
- //, _current_capture_buffer(0)
- //, _playback_wrap_buffer(0)
- //, _capture_wrap_buffer(0)
- , _source_port(0)
- , _write_source(0)
- , _capture_transition_buf(0)
+ , _note_mode(Sustained)
+ , _frames_written_to_ringbuffer(0)
+ , _frames_read_from_ringbuffer(0)
+ , _frames_pending_write(0)
+ , _num_captured_loops(0)
+ , _gui_feed_buffer(AudioEngine::instance()->raw_buffer_size (DataType::MIDI))
{
- /* prevent any write sources from being created */
-
in_set_state = true;
- init(flag);
+ init ();
use_new_playlist ();
+ use_new_write_source (0);
in_set_state = false;
- assert(!destructive());
- DiskstreamCreated (this); /* EMIT SIGNAL */
+ if (destructive()) {
+ throw failed_constructor();
+ }
}
-
+
MidiDiskstream::MidiDiskstream (Session& sess, const XMLNode& node)
: Diskstream(sess, node)
, _playback_buf(0)
, _capture_buf(0)
- //, _current_playback_buffer(0)
- //, _current_capture_buffer(0)
- //, _playback_wrap_buffer(0)
- //, _capture_wrap_buffer(0)
- , _source_port(0)
- , _write_source(0)
- , _capture_transition_buf(0)
+ , _note_mode(Sustained)
+ , _frames_written_to_ringbuffer(0)
+ , _frames_read_from_ringbuffer(0)
+ , _frames_pending_write(0)
+ , _num_captured_loops(0)
+ , _gui_feed_buffer(AudioEngine::instance()->raw_buffer_size (DataType::MIDI))
{
in_set_state = true;
- init (Recordable);
- if (set_state (node)) {
+ init ();
+
+ if (set_state (node, Stateful::loading_state_version)) {
in_set_state = false;
throw failed_constructor();
}
- in_set_state = false;
+ use_new_write_source (0);
- if (destructive()) {
- use_destructive_playlist ();
- }
-
- DiskstreamCreated (this); /* EMIT SIGNAL */
+ in_set_state = false;
}
void
-MidiDiskstream::init (Diskstream::Flag f)
+MidiDiskstream::init ()
{
- Diskstream::init(f);
-
/* there are no channels at this point, so these
two calls just get speed_buffer_size and wrap_buffer
size setup without duplicating their code.
set_block_size (_session.get_block_size());
allocate_temporary_buffers ();
- //_playback_wrap_buffer = new RawMidi[wrap_buffer_size];
- //_capture_wrap_buffer = new RawMidi[wrap_buffer_size];
- _playback_buf = new MidiRingBuffer (_session.diskstream_buffer_size());
- _capture_buf = new MidiRingBuffer (_session.diskstream_buffer_size());
- _capture_transition_buf = new RingBufferNPT<CaptureTransition> (128);
-
- _n_channels = ChanCount(DataType::MIDI, 1);
+ const size_t size = _session.butler()->midi_diskstream_buffer_size();
+ _playback_buf = new MidiRingBuffer<framepos_t>(size);
+ _capture_buf = new MidiRingBuffer<framepos_t>(size);
- assert(recordable());
+ _n_channels = ChanCount(DataType::MIDI, 1);
}
MidiDiskstream::~MidiDiskstream ()
{
- Glib::Mutex::Lock lm (state_lock);
+ Glib::Threads::Mutex::Lock lm (state_lock);
+}
+
+
+void
+MidiDiskstream::non_realtime_locate (framepos_t position)
+{
+ if (_write_source) {
+ _write_source->set_timeline_position (position);
+ }
+ seek (position, false);
}
+
void
MidiDiskstream::non_realtime_input_change ()
{
- {
- Glib::Mutex::Lock lm (state_lock);
+ {
+ Glib::Threads::Mutex::Lock lm (state_lock);
- if (input_change_pending == NoChange) {
+ if (input_change_pending.type == IOChange::NoChange) {
return;
}
- if (input_change_pending & ConfigurationChanged) {
+ if (input_change_pending.type & IOChange::ConfigurationChanged) {
+ uint32_t ni = _io->n_ports().n_midi();
- assert(_io->n_inputs() == _n_channels);
- }
+ if (ni != _n_channels.n_midi()) {
+ error << string_compose (_("%1: I/O configuration change %4 requested to use %2, but channel setup is %3"),
+ name(),
+ _io->n_ports(),
+ _n_channels, input_change_pending.type)
+ << endmsg;
+ }
- get_input_sources ();
- set_capture_offset ();
+ if (ni == 0) {
+ _source_port.reset ();
+ } else {
+ _source_port = _io->midi(0);
+ }
+ }
- if (first_input_change) {
- set_align_style (_persistent_alignment_style);
- first_input_change = false;
- } else {
+ if (input_change_pending.type & IOChange::ConnectionsChanged) {
+ set_capture_offset ();
set_align_style_from_io ();
}
- input_change_pending = NoChange;
- }
+ input_change_pending.type = IOChange::NoChange;
- /* reset capture files */
+ /* implicit unlock */
+ }
- reset_write_sources (false);
+ /* unlike with audio, there is never any need to reset write sources
+ based on input configuration changes because ... a MIDI track
+ has just 1 MIDI port as input, always.
+ */
/* now refill channel buffers */
if (speed() != 1.0f || speed() != -1.0f) {
- seek ((jack_nframes_t) (_session.transport_frame() * (double) speed()));
+ seek ((framepos_t) (_session.transport_frame() * (double) speed()));
}
else {
seek (_session.transport_frame());
}
-}
-
-void
-MidiDiskstream::get_input_sources ()
-{
- uint32_t ni = _io->n_inputs().get(DataType::MIDI);
-
- if (ni == 0) {
- return;
- }
-
- // This is all we do for now at least
- assert(ni == 1);
- _source_port = _io->midi_input(0);
-
- /* I don't get it....
- const char **connections = _io->input(0)->get_connections ();
-
- if (connections == 0 || connections[0] == 0) {
-
- if (_source_port) {
- // _source_port->disable_metering ();
- }
-
- _source_port = 0;
-
- } else {
- _source_port = dynamic_cast<MidiPort*>(
- _session.engine().get_port_by_name (connections[0]) );
- }
-
- if (connections) {
- free (connections);
- }*/
-}
+ g_atomic_int_set(&_frames_pending_write, 0);
+ g_atomic_int_set(&_num_captured_loops, 0);
+}
int
MidiDiskstream::find_and_use_playlist (const string& name)
{
- Playlist* pl;
- MidiPlaylist* playlist;
-
- if ((pl = _session.playlist_by_name (name)) == 0) {
- playlist = new MidiPlaylist(_session, name);
- pl = playlist;
+ boost::shared_ptr<MidiPlaylist> playlist;
+
+ if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist> (_session.playlists->by_name (name))) == 0) {
+ playlist = boost::dynamic_pointer_cast<MidiPlaylist> (PlaylistFactory::create (DataType::MIDI, _session, name));
}
- if ((playlist = dynamic_cast<MidiPlaylist*> (pl)) == 0) {
+ if (!playlist) {
error << string_compose(_("MidiDiskstream: Playlist \"%1\" isn't a midi playlist"), name) << endmsg;
return -1;
}
}
int
-MidiDiskstream::use_playlist (Playlist* playlist)
+MidiDiskstream::use_playlist (boost::shared_ptr<Playlist> playlist)
{
- assert(dynamic_cast<MidiPlaylist*>(playlist));
+ if (boost::dynamic_pointer_cast<MidiPlaylist>(playlist)) {
+ Diskstream::use_playlist(playlist);
+ }
- return Diskstream::use_playlist(playlist);
+ return 0;
}
int
MidiDiskstream::use_new_playlist ()
{
string newname;
- MidiPlaylist* playlist;
+ boost::shared_ptr<MidiPlaylist> playlist;
if (!in_set_state && destructive()) {
return 0;
newname = Playlist::bump_name (_name, _session);
}
- if ((playlist = new MidiPlaylist (_session, newname, hidden())) != 0) {
- playlist->set_orig_diskstream_id (id());
+ if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist> (PlaylistFactory::create (
+ DataType::MIDI, _session, newname, hidden()))) != 0) {
+
return use_playlist (playlist);
- } else {
+
+ } else {
return -1;
}
}
}
string newname;
- MidiPlaylist* playlist;
+ boost::shared_ptr<MidiPlaylist> playlist;
newname = Playlist::bump_name (_playlist->name(), _session);
-
- if ((playlist = new MidiPlaylist (*midi_playlist(), newname)) != 0) {
- playlist->set_orig_diskstream_id (id());
+
+ if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist>(PlaylistFactory::create (midi_playlist(), newname))) != 0) {
return use_playlist (playlist);
- } else {
+ } else {
return -1;
}
}
/** Overloaded from parent to die horribly
*/
-void
+int
MidiDiskstream::set_destructive (bool yn)
{
- assert( ! destructive());
- assert( ! yn);
+ return yn ? -1 : 0;
}
void
-MidiDiskstream::check_record_status (jack_nframes_t transport_frame, jack_nframes_t nframes, bool can_record)
+MidiDiskstream::set_note_mode (NoteMode m)
{
- // FIXME: waaay too much code to duplicate (AudioDiskstream)
-
- int possibly_recording;
- int rolling;
- int change;
- const int transport_rolling = 0x4;
- const int track_rec_enabled = 0x2;
- const int global_rec_enabled = 0x1;
-
- /* merge together the 3 factors that affect record status, and compute
- what has changed.
- */
-
- rolling = _session.transport_speed() != 0.0f;
- possibly_recording = (rolling << 2) | (record_enabled() << 1) | can_record;
- change = possibly_recording ^ last_possibly_recording;
-
- if (possibly_recording == last_possibly_recording) {
- return;
- }
-
- /* change state */
-
- /* if per-track or global rec-enable turned on while the other was already on, we've started recording */
-
- if ((change & track_rec_enabled) && record_enabled() && (!(change & global_rec_enabled) && can_record) ||
- ((change & global_rec_enabled) && can_record && (!(change & track_rec_enabled) && record_enabled()))) {
-
- /* starting to record: compute first+last frames */
-
- first_recordable_frame = transport_frame + _capture_offset;
- last_recordable_frame = max_frames;
- capture_start_frame = transport_frame;
-
- if (!(last_possibly_recording & transport_rolling) && (possibly_recording & transport_rolling)) {
-
- /* was stopped, now rolling (and recording) */
-
- if (_alignment_style == ExistingMaterial) {
- first_recordable_frame += _session.worst_output_latency();
- } else {
- first_recordable_frame += _roll_delay;
- }
-
- } else {
-
- /* was rolling, but record state changed */
-
- if (_alignment_style == ExistingMaterial) {
-
-
- if (!_session.get_punch_in()) {
-
- /* manual punch in happens at the correct transport frame
- because the user hit a button. but to get alignment correct
- we have to back up the position of the new region to the
- appropriate spot given the roll delay.
- */
-
- capture_start_frame -= _roll_delay;
-
- /* XXX paul notes (august 2005): i don't know why
- this is needed.
- */
-
- first_recordable_frame += _capture_offset;
-
- } else {
-
- /* autopunch toggles recording at the precise
- transport frame, and then the DS waits
- to start recording for a time that depends
- on the output latency.
- */
-
- first_recordable_frame += _session.worst_output_latency();
- }
-
- } else {
-
- if (_session.get_punch_in()) {
- first_recordable_frame += _roll_delay;
- } else {
- capture_start_frame -= _roll_delay;
- }
- }
-
- }
-
- if (_flags & Recordable) {
- RingBufferNPT<CaptureTransition>::rw_vector transvec;
- _capture_transition_buf->get_write_vector(&transvec);
-
- if (transvec.len[0] > 0) {
- transvec.buf[0]->type = CaptureStart;
- transvec.buf[0]->capture_val = capture_start_frame;
- _capture_transition_buf->increment_write_ptr(1);
- } else {
- // bad!
- fatal << X_("programming error: capture_transition_buf is full on rec start! inconceivable!")
- << endmsg;
- }
- }
-
- } else if (!record_enabled() || !can_record) {
-
- /* stop recording */
+ _note_mode = m;
+ midi_playlist()->set_note_mode(m);
+ if (_write_source && _write_source->model())
+ _write_source->model()->set_note_mode(m);
+}
- last_recordable_frame = transport_frame + _capture_offset;
-
- if (_alignment_style == ExistingMaterial) {
- last_recordable_frame += _session.worst_output_latency();
- } else {
- last_recordable_frame += _roll_delay;
- }
+/** Get the start, end, and length of a location "atomically".
+ *
+ * Note: Locations don't get deleted, so all we care about when I say "atomic"
+ * is that we are always pointing to the same one and using start/length values
+ * obtained just once. Use this function to achieve this since location being
+ * a parameter achieves this.
+ */
+static void
+get_location_times(const Location* location,
+ framepos_t* start,
+ framepos_t* end,
+ framepos_t* length)
+{
+ if (location) {
+ *start = location->start();
+ *end = location->end();
+ *length = *end - *start;
}
-
- last_possibly_recording = possibly_recording;
}
int
-MidiDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes, jack_nframes_t offset, bool can_record, bool rec_monitors_input)
+MidiDiskstream::process (BufferSet& bufs, framepos_t transport_frame, pframes_t nframes, framecnt_t& playback_distance, bool need_disk_signal)
{
- // FIXME: waay too much code to duplicate (AudioDiskstream::process)
- int ret = -1;
- jack_nframes_t rec_offset = 0;
- jack_nframes_t rec_nframes = 0;
- bool nominally_recording;
- bool re = record_enabled ();
- bool collect_playback = false;
-
- /*_current_capture_buffer = 0;
- _current_playback_buffer = 0;*/
-
- /* if we've already processed the frames corresponding to this call,
- just return. this allows multiple routes that are taking input
- from this diskstream to call our ::process() method, but have
- this stuff only happen once. more commonly, it allows both
- the AudioTrack that is using this AudioDiskstream *and* the Session
- to call process() without problems.
- */
+ framecnt_t rec_offset = 0;
+ framecnt_t rec_nframes = 0;
+ bool nominally_recording;
+ bool re = record_enabled ();
+ bool can_record = _session.actively_recording ();
- if (_processed) {
- return 0;
- }
+ playback_distance = 0;
- check_record_status (transport_frame, nframes, can_record);
+ check_record_status (transport_frame, can_record);
nominally_recording = (can_record && re);
if (nframes == 0) {
- _processed = true;
return 0;
}
- /* This lock is held until the end of AudioDiskstream::commit, so these two functions
- must always be called as a pair. The only exception is if this function
- returns a non-zero value, in which case, ::commit should not be called.
- */
+ boost::shared_ptr<MidiPort> sp = _source_port.lock ();
- // If we can't take the state lock return.
- if (!state_lock.trylock()) {
+ if (sp == 0) {
return 1;
}
- adjust_capture_position = 0;
+ Glib::Threads::Mutex::Lock sm (state_lock, Glib::Threads::TRY_LOCK);
- if (nominally_recording || (_session.get_record_enabled() && _session.get_punch_in())) {
- OverlapType ot;
-
- ot = coverage (first_recordable_frame, last_recordable_frame, transport_frame, transport_frame + nframes);
-
- switch (ot) {
- case OverlapNone:
- rec_nframes = 0;
- break;
+ if (!sm.locked()) {
+ return 1;
+ }
- case OverlapInternal:
- /* ---------- recrange
- |---| transrange
- */
- rec_nframes = nframes;
- rec_offset = 0;
- break;
+ const Location* const loop_loc = loop_location;
+ framepos_t loop_start = 0;
+ framepos_t loop_end = 0;
+ framepos_t loop_length = 0;
+ get_location_times(loop_loc, &loop_start, &loop_end, &loop_length);
- case OverlapStart:
- /* |--------| recrange
- -----| transrange
- */
- rec_nframes = transport_frame + nframes - first_recordable_frame;
- if (rec_nframes) {
- rec_offset = first_recordable_frame - transport_frame;
- }
- break;
+ adjust_capture_position = 0;
- case OverlapEnd:
- /* |--------| recrange
- |-------- transrange
- */
- rec_nframes = last_recordable_frame - transport_frame;
- rec_offset = 0;
- break;
+ if (nominally_recording || (re && was_recording && _session.get_record_enabled() && _session.config.get_punch_in())) {
+ Evoral::OverlapType ot = Evoral::coverage (first_recordable_frame, last_recordable_frame, transport_frame, transport_frame + nframes);
- case OverlapExternal:
- /* |--------| recrange
- -------------- transrange
- */
- rec_nframes = last_recordable_frame - last_recordable_frame;
- rec_offset = first_recordable_frame - transport_frame;
- break;
- }
+ calculate_record_range(ot, transport_frame, nframes, rec_nframes, rec_offset);
if (rec_nframes && !was_recording) {
- capture_captured = 0;
+ if (loop_loc) {
+ /* Loop recording, so pretend the capture started at the loop
+ start rgardless of what time it is now, so the source starts
+ at the loop start and can handle time wrapping around.
+ Otherwise, start the source right now as usual.
+ */
+ capture_captured = transport_frame - loop_start;
+ capture_start_frame = loop_start;
+ }
+ _write_source->mark_write_starting_now(
+ capture_start_frame, capture_captured, loop_length);
+ g_atomic_int_set(&_frames_pending_write, 0);
+ g_atomic_int_set(&_num_captured_loops, 0);
was_recording = true;
}
}
-
- if (can_record && !_last_capture_regions.empty()) {
- _last_capture_regions.clear ();
+ if (can_record && !_last_capture_sources.empty()) {
+ _last_capture_sources.clear ();
}
if (nominally_recording || rec_nframes) {
- assert(_source_port);
-
- // Pump entire port buffer into the ring buffer (FIXME!)
- _capture_buf->write(_source_port->get_midi_buffer(), transport_frame);
+ // Pump entire port buffer into the ring buffer (FIXME: split cycles?)
+ MidiBuffer& buf = sp->get_midi_buffer(nframes);
+ ChannelMode mode = AllChannels; // _track->get_capture_channel_mode ();
+ uint32_t mask = 0xffff; // _track->get_capture_channel_mask ();
+
+ for (MidiBuffer::iterator i = buf.begin(); i != buf.end(); ++i) {
+ Evoral::MIDIEvent<MidiBuffer::TimeType> ev(*i, false);
+#ifndef NDEBUG
+ if (DEBUG::MidiIO & PBD::debug_bits) {
+ const uint8_t* __data = ev.buffer();
+ DEBUG_STR_DECL(a);
+ DEBUG_STR_APPEND(a, string_compose ("mididiskstream %1 capture event @ %2 + %3 sz %4 ", this, ev.time(), transport_frame, 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)__data[i]);
+ DEBUG_STR_APPEND(a,' ');
+ }
+ DEBUG_STR_APPEND(a,'\n');
+ DEBUG_TRACE (DEBUG::MidiIO, DEBUG_STR(a).str());
+ }
+#endif
+ /* Write events to the capture buffer in frames from session start,
+ but ignoring looping so event time progresses monotonically.
+ The source knows the loop length so it knows exactly where the
+ event occurs in the series of recorded loops and can implement
+ any desirable behaviour. We don't want to send event with
+ transport time here since that way the source can not
+ reconstruct their actual time; future clever MIDI looping should
+ probabl be implemented in the source instead of here.
+ */
+ const framecnt_t loop_offset = _num_captured_loops * loop_length;
+
+ switch (mode) {
+ case AllChannels:
+ _capture_buf->write(transport_frame + loop_offset + ev.time(),
+ ev.type(), ev.size(), ev.buffer());
+ break;
+ case FilterChannels:
+ if (ev.is_channel_event()) {
+ if ((1<<ev.channel()) & mask) {
+ _capture_buf->write(transport_frame + loop_offset + ev.time(),
+ ev.type(), ev.size(), ev.buffer());
+ }
+ } else {
+ _capture_buf->write(transport_frame + loop_offset + ev.time(),
+ ev.type(), ev.size(), ev.buffer());
+ }
+ break;
+ case ForceChannel:
+ if (ev.is_channel_event()) {
+ ev.set_channel (ffs(mask) - 1);
+ }
+ _capture_buf->write(transport_frame + loop_offset + ev.time(),
+ ev.type(), ev.size(), ev.buffer());
+ break;
+ }
+ }
+ g_atomic_int_add(&_frames_pending_write, nframes);
+
+ if (buf.size() != 0) {
+ Glib::Threads::Mutex::Lock lm (_gui_feed_buffer_mutex, Glib::Threads::TRY_LOCK);
+
+ if (lm.locked ()) {
+ /* Copy this data into our GUI feed buffer and tell the GUI
+ that it can read it if it likes.
+ */
+ _gui_feed_buffer.clear ();
+
+ for (MidiBuffer::iterator i = buf.begin(); i != buf.end(); ++i) {
+ /* This may fail if buf is larger than _gui_feed_buffer, but it's not really
+ the end of the world if it does.
+ */
+ _gui_feed_buffer.push_back ((*i).time() + transport_frame, (*i).size(), (*i).buffer());
+ }
+ }
- /*
- for (size_t i=0; i < _source_port->size(); ++i) {
- cerr << "DISKSTREAM GOT EVENT(1) " << i << "!!\n";
- }
+ DataRecorded (_write_source); /* EMIT SIGNAL */
+ }
- if (_source_port->size() == 0)
- cerr << "No events :/ (1)\n";
- */
} else {
if (was_recording) {
- finish_capture (rec_monitors_input);
+ finish_capture ();
}
}
if (rec_nframes) {
- /* XXX XXX XXX XXX XXX XXX XXX XXX */
/* data will be written to disk */
+ if (rec_nframes == nframes && rec_offset == 0) {
+ playback_distance = nframes;
+ }
+
adjust_capture_position = rec_nframes;
} else if (nominally_recording) {
- /* can't do actual capture yet - waiting for latency effects to finish before we start*/
-
- throw; // forget all that jazz!
+ /* XXXX do this for MIDI !!!
+ can't do actual capture yet - waiting for latency effects to finish before we start
+ */
playback_distance = nframes;
} else {
- collect_playback = true;
- }
-
- if (collect_playback) {
-
- /* we're doing playback */
+ /* XXX: should be doing varispeed stuff here, similar to the code in AudioDiskstream::process */
- jack_nframes_t necessary_samples;
-
- /* no varispeed playback if we're recording, because the output .... TBD */
-
- if (rec_nframes == 0 && _actual_speed != 1.0f) {
- necessary_samples = (jack_nframes_t) floor ((nframes * fabs (_actual_speed))) + 1;
- } else {
- necessary_samples = nframes;
- }
-
- // XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
- // Write into playback buffer here, and whatnot
+ playback_distance = nframes;
}
- ret = 0;
-
- _processed = true;
-
- if (ret) {
-
- /* we're exiting with failure, so ::commit will not
- be called. unlock the state lock.
- */
-
- state_lock.unlock();
- }
-
- return ret;
-
- _processed = true;
+ if (need_disk_signal) {
+ /* copy the diskstream data to all output buffers */
+
+ MidiBuffer& mbuf (bufs.get_midi (0));
+ get_playback (mbuf, nframes);
+
+ /* leave the audio count alone */
+ ChanCount cnt (DataType::MIDI, 1);
+ cnt.set (DataType::AUDIO, bufs.count().n_audio());
+ bufs.set_count (cnt);
+ }
return 0;
}
bool
-MidiDiskstream::commit (jack_nframes_t nframes)
+MidiDiskstream::commit (framecnt_t playback_distance)
{
bool need_butler = false;
playback_sample += playback_distance;
}
- /* XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX */
-
- /*
- _playback_buf->increment_read_ptr (playback_distance);
-
- if (adjust_capture_position) {
- _capture_buf->increment_write_ptr (adjust_capture_position);
- }
-
if (adjust_capture_position != 0) {
capture_captured += adjust_capture_position;
adjust_capture_position = 0;
}
- if (_slaved) {
- need_butler = _playback_buf->write_space() >= _playback_buf->bufsize() / 2;
- } else {
- need_butler = _playback_buf->write_space() >= disk_io_chunk_frames
- || _capture_buf->read_space() >= disk_io_chunk_frames;
- }
+ uint32_t frames_read = g_atomic_int_get(const_cast<gint*>(&_frames_read_from_ringbuffer));
+ uint32_t frames_written = g_atomic_int_get(const_cast<gint*>(&_frames_written_to_ringbuffer));
+
+ /*
+ cerr << name() << " MDS written: " << frames_written << " - read: " << frames_read <<
+ " = " << frames_written - frames_read
+ << " + " << playback_distance << " < " << midi_readahead << " = " << need_butler << ")" << endl;
*/
- state_lock.unlock();
- _processed = false;
+ /* frames_read will generally be less than frames_written, but
+ * immediately after an overwrite, we can end up having read some data
+ * before we've written any. we don't need to trip an assert() on this,
+ * but we do need to check so that the decision on whether or not we
+ * need the butler is done correctly.
+ */
+
+ if (frames_read <= frames_written) {
+ if ((frames_written - frames_read) + playback_distance < midi_readahead) {
+ need_butler = true;
+ }
+ }
+
return need_butler;
}
MidiDiskstream::set_pending_overwrite (bool yn)
{
/* called from audio thread, so we can use the read ptr and playback sample as we wish */
-
- pending_overwrite = yn;
+ _pending_overwrite = yn;
overwrite_frame = playback_sample;
- //overwrite_offset = channels.front().playback_buf->get_read_ptr();
}
int
MidiDiskstream::overwrite_existing_buffers ()
{
+ /* This is safe as long as the butler thread is suspended, which it should be */
+ _playback_buf->reset ();
+
+ g_atomic_int_set (&_frames_read_from_ringbuffer, 0);
+ g_atomic_int_set (&_frames_written_to_ringbuffer, 0);
+
+ read (overwrite_frame, disk_io_chunk_frames, false);
+ file_frame = overwrite_frame; // it was adjusted by ::read()
+ overwrite_queued = false;
+ _pending_overwrite = false;
+
return 0;
}
int
-MidiDiskstream::seek (jack_nframes_t frame, bool complete_refill)
+MidiDiskstream::seek (framepos_t frame, bool complete_refill)
{
- Glib::Mutex::Lock lm (state_lock);
+ Glib::Threads::Mutex::Lock lm (state_lock);
int ret = -1;
+ if (g_atomic_int_get (&_frames_read_from_ringbuffer) == 0) {
+ /* we haven't read anything since the last seek,
+ so flush all note trackers to prevent
+ wierdness
+ */
+ reset_tracker ();
+ }
+
_playback_buf->reset();
_capture_buf->reset();
+ g_atomic_int_set(&_frames_read_from_ringbuffer, 0);
+ g_atomic_int_set(&_frames_written_to_ringbuffer, 0);
playback_sample = frame;
file_frame = frame;
}
int
-MidiDiskstream::can_internal_playback_seek (jack_nframes_t distance)
+MidiDiskstream::can_internal_playback_seek (framecnt_t distance)
{
- if (_playback_buf->read_space() < distance) {
- return false;
- } else {
- return true;
- }
+ uint32_t frames_read = g_atomic_int_get(&_frames_read_from_ringbuffer);
+ uint32_t frames_written = g_atomic_int_get(&_frames_written_to_ringbuffer);
+ return ((frames_written - frames_read) < distance);
}
int
-MidiDiskstream::internal_playback_seek (jack_nframes_t distance)
+MidiDiskstream::internal_playback_seek (framecnt_t distance)
{
first_recordable_frame += distance;
playback_sample += distance;
/** @a start is set to the new frame position (TIME) read up to */
int
-MidiDiskstream::read (jack_nframes_t& start, jack_nframes_t dur, bool reversed)
-{
- jack_nframes_t this_read = 0;
- bool reloop = false;
- jack_nframes_t loop_end = 0;
- jack_nframes_t loop_start = 0;
- jack_nframes_t loop_length = 0;
- Location *loc = 0;
+MidiDiskstream::read (framepos_t& start, framecnt_t dur, bool reversed)
+{
+ framecnt_t this_read = 0;
+ bool reloop = false;
+ framepos_t loop_end = 0;
+ framepos_t loop_start = 0;
+ framecnt_t loop_length = 0;
+ Location* loc = 0;
if (!reversed) {
- /* Make the use of a Location atomic for this read operation.
-
- Note: Locations don't get deleted, so all we care about
- when I say "atomic" is that we are always pointing to
- the same one and using a start/length values obtained
- just once.
- */
-
- if ((loc = loop_location) != 0) {
- loop_start = loc->start();
- loop_end = loc->end();
- loop_length = loop_end - loop_start;
- }
-
+
+ loc = loop_location;
+ get_location_times(loc, &loop_start, &loop_end, &loop_length);
+
/* if we are looping, ensure that the first frame we read is at the correct
position within the loop.
*/
-
- if (loc && start >= loop_end) {
+
+ if (loc && (start >= loop_end)) {
//cerr << "start adjusted from " << start;
start = loop_start + ((start - loop_start) % loop_length);
//cerr << "to " << start << endl;
}
- //cerr << "start is " << start << " loopstart: " << loop_start << " loopend: " << loop_end << endl;
+ // cerr << "start is " << start << " end " << start+dur << " loopstart: " << loop_start << " loopend: " << loop_end << endl;
}
while (dur) {
/* take any loop into account. we can't read past the end of the loop. */
- if (loc && (loop_end - start < dur)) {
+ if (loc && (loop_end - start <= dur)) {
this_read = loop_end - start;
- //cerr << "reloop true: thisread: " << this_read << " dur: " << dur << endl;
+ // cerr << "reloop true: thisread: " << this_read << " dur: " << dur << endl;
reloop = true;
} else {
reloop = false;
this_read = min(dur,this_read);
if (midi_playlist()->read (*_playback_buf, start, this_read) != this_read) {
- error << string_compose(_("MidiDiskstream %1: cannot read %2 from playlist at frame %3"), _id, this_read,
- start) << endmsg;
+ error << string_compose(
+ _("MidiDiskstream %1: cannot read %2 from playlist at frame %3"),
+ id(), this_read, start) << endmsg;
return -1;
}
-
- _read_data_count = _playlist->read_data_count();
+ g_atomic_int_add (&_frames_written_to_ringbuffer, this_read);
+
if (reversed) {
- cerr << "Reversed MIDI.. that's just crazy talk." << endl;
- // Swap note ons with note offs here
+ // Swap note ons with note offs here. etc?
+ // Fully reversing MIDI requires look-ahead (well, behind) to find previous
+ // CC values etc. hard.
} else {
-
+
/* if we read to the end of the loop, go back to the beginning */
-
if (reloop) {
+ // Synthesize LoopEvent here, because the next events
+ // written will have non-monotonic timestamps.
start = loop_start;
} else {
start += this_read;
}
- }
+ }
dur -= this_read;
+ //offset += this_read;
}
return 0;
int
MidiDiskstream::do_refill ()
{
- int32_t ret = 0;
- size_t write_space = _playback_buf->write_space();
-
- bool reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
+ int ret = 0;
+ size_t write_space = _playback_buf->write_space();
+ bool reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
if (write_space == 0) {
return 0;
}
- /* if there are 2+ chunks of disk i/o possible for
- this track, let the caller know so that it can arrange
- for us to be called again, ASAP.
- */
-
- // FIXME: using disk_io_chunk_frames as an event count, not good
- if (_playback_buf->write_space() >= (_slaved?3:2) * disk_io_chunk_frames) {
- ret = 1;
- }
-
- /* if we're running close to normal speed and there isn't enough
- space to do disk_io_chunk_frames of I/O, then don't bother.
-
- at higher speeds, just do it because the sync between butler
- and audio thread may not be good enough.
- */
-
- if ((write_space < disk_io_chunk_frames) && fabs (_actual_speed) < 2.0f) {
- cerr << "No refill 1\n";
+ if (reversed) {
return 0;
}
- /* when slaved, don't try to get too close to the read pointer. this
- leaves space for the buffer reversal to have something useful to
- work with.
- */
-
- if (_slaved && write_space < (_playback_buf->capacity() / 2)) {
- cerr << "No refill 2\n";
+ /* at end: nothing to do */
+ if (file_frame == max_framepos) {
return 0;
}
- if (reversed) {
- cerr << "No refill 3 (reverse)\n";
+ /* no space to write */
+ if (_playback_buf->write_space() == 0) {
return 0;
}
- if (file_frame == max_frames) {
- cerr << "No refill 4 (EOF)\n";
-
- /* at end: nothing to do */
-
+ uint32_t frames_read = g_atomic_int_get(&_frames_read_from_ringbuffer);
+ uint32_t frames_written = g_atomic_int_get(&_frames_written_to_ringbuffer);
+ if ((frames_written - frames_read) >= midi_readahead) {
return 0;
}
-#if 0
- // or this
- if (file_frame > max_frames - total_space) {
-
- /* to close to the end: read what we can, and zero fill the rest */
-
- zero_fill = total_space - (max_frames - file_frame);
- total_space = max_frames - file_frame;
+ framecnt_t to_read = midi_readahead - (frames_written - frames_read);
- } else {
- zero_fill = 0;
- }
-#endif
+ //cout << "MDS read for midi_readahead " << to_read << " rb_contains: "
+ // << frames_written - frames_read << endl;
- // At this point we:
- assert(_playback_buf->write_space() > 0); // ... have something to write to, and
- assert(file_frame <= max_frames); // ... something to write
+ to_read = (framecnt_t) min ((framecnt_t) to_read, (framecnt_t) (max_framepos - file_frame));
- // So (read it, then) write it:
-
- jack_nframes_t file_frame_tmp = file_frame;
- jack_nframes_t to_read = min(disk_io_chunk_frames, (max_frames - file_frame));
-
- // FIXME: read count?
- if (read (file_frame_tmp, to_read, reversed)) {
+ if (read (file_frame, to_read, reversed)) {
ret = -1;
- goto out;
}
- file_frame = file_frame_tmp;
-
-out:
-
return ret;
}
* of data to disk. it will never write more than that. If it writes that
* much and there is more than that waiting to be written, it will return 1,
* otherwise 0 on success or -1 on failure.
- *
+ *
* If there is less than disk_io_chunk_frames to be written, no data will be
* written at all unless @a force_flush is true.
*/
int
-MidiDiskstream::do_flush (Session::RunContext context, bool force_flush)
+MidiDiskstream::do_flush (RunContext /*context*/, bool force_flush)
{
- /* hey, so did you write that data? */
+ framecnt_t to_write;
+ int32_t ret = 0;
- // oh yeah, you bet. wrote it good. honest.
-
- return 0;
+ if (!_write_source) {
+ return 0;
+ }
+
+ const framecnt_t total = g_atomic_int_get(&_frames_pending_write);
+
+ if (total == 0 ||
+ _capture_buf->read_space() == 0 ||
+ (!force_flush && (total < disk_io_chunk_frames) && was_recording)) {
+ goto out;
+ }
+
+ /* if there are 2+ chunks of disk i/o possible for
+ this track, let the caller know so that it can arrange
+ for us to be called again, ASAP.
+
+ if we are forcing a flush, then if there is* any* extra
+ work, let the caller know.
+
+ if we are no longer recording and there is any extra work,
+ let the caller know too.
+ */
+
+ if (total >= 2 * disk_io_chunk_frames || ((force_flush || !was_recording) && total > disk_io_chunk_frames)) {
+ ret = 1;
+ }
+
+ if (force_flush) {
+ /* push out everything we have, right now */
+ to_write = max_framecnt;
+ } else {
+ to_write = disk_io_chunk_frames;
+ }
+
+ if (record_enabled() && ((total > disk_io_chunk_frames) || force_flush)) {
+ if (_write_source->midi_write (*_capture_buf, get_capture_start_frame (0), to_write) != to_write) {
+ error << string_compose(_("MidiDiskstream %1: cannot write to disk"), id()) << endmsg;
+ return -1;
+ }
+ g_atomic_int_add(&_frames_pending_write, -to_write);
+ }
+
+out:
+ return ret;
}
void
-MidiDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_capture)
+MidiDiskstream::transport_stopped_wallclock (struct tm& /*when*/, time_t /*twhen*/, bool abort_capture)
{
- uint32_t buffer_position;
bool more_work = true;
int err = 0;
- MidiRegion* region = 0;
- jack_nframes_t total_capture;
+ boost::shared_ptr<MidiRegion> region;
MidiRegion::SourceList srcs;
MidiRegion::SourceList::iterator src;
vector<CaptureInfo*>::iterator ci;
- bool mark_write_completed = false;
- finish_capture (true);
+ finish_capture ();
- /* butler is already stopped, but there may be work to do
+ /* butler is already stopped, but there may be work to do
to flush remaining data to disk.
*/
while (more_work && !err) {
- switch (do_flush (Session::TransportContext, true)) {
- case 0:
- more_work = false;
- break;
- case 1:
- break;
- case -1:
- error << string_compose(_("MidiDiskstream \"%1\": cannot flush captured data to disk!"), _name) << endmsg;
- err++;
+ switch (do_flush (TransportContext, true)) {
+ case 0:
+ more_work = false;
+ break;
+ case 1:
+ break;
+ case -1:
+ error << string_compose(_("MidiDiskstream \"%1\": cannot flush captured data to disk!"), _name) << endmsg;
+ err++;
}
}
/* XXX is there anything we can do if err != 0 ? */
- Glib::Mutex::Lock lm (capture_info_lock);
+ Glib::Threads::Mutex::Lock lm (capture_info_lock);
if (capture_info.empty()) {
- return;
+ goto no_capture_stuff_to_do;
}
if (abort_capture) {
- list<Source*>* deletion_list = new list<Source*>;
-
if (_write_source) {
_write_source->mark_for_remove ();
- _write_source->release ();
-
- deletion_list->push_back (_write_source);
-
- _write_source = 0;
+ _write_source->drop_references ();
+ _write_source.reset();
}
/* new source set up in "out" below */
- if (!deletion_list->empty()) {
- DeleteSources (deletion_list);
- } else {
- delete deletion_list;
- }
-
} else {
- assert(_write_source);
-
- for (total_capture = 0, ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
+ framecnt_t total_capture = 0;
+ for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
total_capture += (*ci)->frames;
}
- /* figure out the name for this take */
+ if (_write_source->length (capture_info.front()->start) != 0) {
- SMFSource* s = _write_source;
+ /* phew, we have data */
- if (s) {
+ /* figure out the name for this take */
- srcs.push_back (s);
+ srcs.push_back (_write_source);
- cerr << "MidiDiskstream: updating source after capture\n";
- s->update_header (capture_info.front()->start, when, twhen);
+ _write_source->set_timeline_position (capture_info.front()->start);
+ _write_source->set_captured_for (_name);
- s->set_captured_for (_name);
+ /* set length in beats to entire capture length */
- }
+ BeatsFramesConverter converter (_session.tempo_map(), capture_info.front()->start);
+ const double total_capture_beats = converter.from (total_capture);
+ _write_source->set_length_beats (total_capture_beats);
- /* Register a new region with the Session that
- describes the entire source. Do this first
- so that any sub-regions will obviously be
- children of this one (later!)
- */
- try {
- assert(_write_source);
- region = new MidiRegion (srcs, _write_source->last_capture_start_frame(), total_capture,
- region_name_from_path (_write_source->name()),
- 0, Region::Flag (Region::DefaultFlags|Region::Automatic|Region::WholeFile));
+ /* flush to disk: this step differs from the audio path,
+ where all the data is already on disk.
+ */
- region->special_set_position (capture_info.front()->start);
- }
+ _write_source->mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::ResolveStuckNotes, total_capture_beats);
+ /* we will want to be able to keep (over)writing the source
+ but we don't want it to be removable. this also differs
+ from the audio situation, where the source at this point
+ must be considered immutable. luckily, we can rely on
+ MidiSource::mark_streaming_write_completed() to have
+ already done the necessary work for that.
+ */
- catch (failed_constructor& err) {
- error << string_compose(_("%1: could not create region for complete midi file"), _name) << endmsg;
- /* XXX what now? */
- }
+ string whole_file_region_name;
+ whole_file_region_name = region_name_from_path (_write_source->name(), true);
- _last_capture_regions.push_back (region);
+ /* Register a new region with the Session that
+ describes the entire source. Do this first
+ so that any sub-regions will obviously be
+ children of this one (later!)
+ */
- // cerr << _name << ": there are " << capture_info.size() << " capture_info records\n";
+ try {
+ PropertyList plist;
- XMLNode &before = _playlist->get_state();
- _playlist->freeze ();
+ plist.add (Properties::name, whole_file_region_name);
+ plist.add (Properties::whole_file, true);
+ plist.add (Properties::automatic, true);
+ plist.add (Properties::start, 0);
+ plist.add (Properties::length, total_capture);
+ plist.add (Properties::layer, 0);
- for (buffer_position = _write_source->last_capture_start_frame(), ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
+ boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
- string region_name;
- _session.region_name (region_name, _write_source->name(), false);
+ region = boost::dynamic_pointer_cast<MidiRegion> (rx);
+ region->special_set_position (capture_info.front()->start);
+ }
- // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add a region\n";
- try {
- region = new MidiRegion (srcs, buffer_position, (*ci)->frames, region_name);
+ catch (failed_constructor& err) {
+ error << string_compose(_("%1: could not create region for complete midi file"), _name) << endmsg;
+ /* XXX what now? */
}
- catch (failed_constructor& err) {
- error << _("MidiDiskstream: could not create region for captured audio!") << endmsg;
- continue; /* XXX is this OK? */
+ _last_capture_sources.insert (_last_capture_sources.end(), srcs.begin(), srcs.end());
+
+ _playlist->clear_changes ();
+ _playlist->freeze ();
+
+ /* Session frame time of the initial capture in this pass, which is where the source starts */
+ framepos_t initial_capture = 0;
+ if (!capture_info.empty()) {
+ initial_capture = capture_info.front()->start;
}
- _last_capture_regions.push_back (region);
+ for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
- // cerr << "add new region, buffer position = " << buffer_position << " @ " << (*ci)->start << endl;
+ string region_name;
- i_am_the_modifier++;
- _playlist->add_region (*region, (*ci)->start);
- i_am_the_modifier--;
+ RegionFactory::region_name (region_name, _write_source->name(), false);
- buffer_position += (*ci)->frames;
- }
+ // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add a region\n";
+
+ try {
+ PropertyList plist;
+
+ /* start of this region is the offset between the start of its capture and the start of the whole pass */
+ plist.add (Properties::start, (*ci)->start - initial_capture);
+ plist.add (Properties::length, (*ci)->frames);
+ plist.add (Properties::length_beats, converter.from((*ci)->frames));
+ plist.add (Properties::name, region_name);
+
+ boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
+ region = boost::dynamic_pointer_cast<MidiRegion> (rx);
+ }
+
+ catch (failed_constructor& err) {
+ error << _("MidiDiskstream: could not create region for captured midi!") << endmsg;
+ continue; /* XXX is this OK? */
+ }
- _playlist->thaw ();
- XMLNode &after = _playlist->get_state();
- _session.add_command (new MementoCommand<Playlist>(*_playlist, before, after));
+ // cerr << "add new region, buffer position = " << buffer_position << " @ " << (*ci)->start << endl;
- mark_write_completed = true;
+ i_am_the_modifier++;
+ _playlist->add_region (region, (*ci)->start);
+ i_am_the_modifier--;
+ }
+
+ _playlist->thaw ();
+ _session.add_command (new StatefulDiffCommand(_playlist));
+
+ } else {
- reset_write_sources (mark_write_completed);
+ /* No data was recorded, so this capture will
+ effectively be aborted; do the same as we
+ do for an explicit abort.
+ */
+
+ if (_write_source) {
+ _write_source->mark_for_remove ();
+ _write_source->drop_references ();
+ _write_source.reset();
+ }
+ }
}
+ use_new_write_source (0);
+
for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
delete *ci;
}
capture_info.clear ();
capture_start_frame = 0;
+
+ no_capture_stuff_to_do:
+
+ reset_tracker ();
+}
+
+void
+MidiDiskstream::transport_looped (framepos_t)
+{
+ /* Here we only keep track of the number of captured loops so monotonic
+ event times can be delivered to the write source in process(). Trying
+ to be clever here is a world of trouble, it is better to simply record
+ the input in a straightforward non-destructive way. In the future when
+ we want to implement more clever MIDI looping modes it should be done in
+ the Source and/or entirely after the capture is finished.
+ */
+ if (was_recording) {
+ g_atomic_int_add(&_num_captured_loops, 1);
+ }
}
void
-MidiDiskstream::finish_capture (bool rec_monitors_input)
+MidiDiskstream::finish_capture ()
{
was_recording = false;
-
+
if (capture_captured == 0) {
return;
}
- // Why must we destroy?
- assert(!destructive());
-
CaptureInfo* ci = new CaptureInfo;
-
- ci->start = capture_start_frame;
+
+ ci->start = capture_start_frame;
ci->frames = capture_captured;
-
- /* XXX theoretical race condition here. Need atomic exchange ?
- However, the circumstances when this is called right
+
+ /* XXX theoretical race condition here. Need atomic exchange ?
+ However, the circumstances when this is called right
now (either on record-disable or transport_stopped)
mean that no actual race exists. I think ...
We now have a capture_info_lock, but it is only to be used
void
MidiDiskstream::set_record_enabled (bool yn)
{
- if (!recordable() || !_session.record_enabling_legal()) {
+ if (!recordable() || !_session.record_enabling_legal() || _io->n_ports().n_midi() == 0) {
return;
}
- assert(!destructive());
-
- if (yn && _source_port == 0) {
-
- /* pick up connections not initiated *from* the IO object
- we're associated with.
- */
-
- get_input_sources ();
- }
-
/* yes, i know that this not proof against race conditions, but its
good enough. i think.
*/
} else {
disengage_record_enable ();
}
+
+ RecordEnableChanged (); /* EMIT SIGNAL */
}
}
-void
-MidiDiskstream::engage_record_enable ()
+bool
+MidiDiskstream::prep_record_enable ()
{
- bool rolling = _session.transport_speed() != 0.0f;
+ if (!recordable() || !_session.record_enabling_legal() || _io->n_ports().n_midi() == 0) {
+ return false;
+ }
+
+ bool const rolling = _session.transport_speed() != 0.0f;
- g_atomic_int_set (&_record_enabled, 1);
+ boost::shared_ptr<MidiPort> sp = _source_port.lock ();
- if (Config->get_use_hardware_monitoring() && _source_port) {
- _source_port->request_monitor_input (!(_session.get_auto_input() && rolling));
+ if (sp && Config->get_monitoring_model() == HardwareMonitoring) {
+ sp->request_jack_monitors_input (!(_session.config.get_auto_input() && rolling));
}
- RecordEnableChanged (); /* EMIT SIGNAL */
+ return true;
}
-void
-MidiDiskstream::disengage_record_enable ()
+bool
+MidiDiskstream::prep_record_disable ()
{
- g_atomic_int_set (&_record_enabled, 0);
- if (Config->get_use_hardware_monitoring()) {
- if (_source_port) {
- _source_port->request_monitor_input (false);
- }
- }
- RecordEnableChanged (); /* EMIT SIGNAL */
+ return true;
}
XMLNode&
MidiDiskstream::get_state ()
{
- XMLNode* node = new XMLNode ("MidiDiskstream");
+ XMLNode& node (Diskstream::get_state());
char buf[64];
LocaleGuard lg (X_("POSIX"));
- snprintf (buf, sizeof(buf), "0x%x", _flags);
- node->add_property ("flags", buf);
-
- node->add_property ("playlist", _playlist->name());
-
- snprintf (buf, sizeof(buf), "%f", _visible_speed);
- node->add_property ("speed", buf);
-
- node->add_property("name", _name);
- id().print(buf);
- node->add_property("id", buf);
-
if (_write_source && _session.get_record_enabled()) {
XMLNode* cs_child = new XMLNode (X_("CapturingSources"));
Location* pi;
- if (_session.get_punch_in() && ((pi = _session.locations()->auto_punch_location()) != 0)) {
- snprintf (buf, sizeof (buf), "%" PRIu32, pi->start());
+ if (_session.config.get_punch_in() && ((pi = _session.locations()->auto_punch_location()) != 0)) {
+ snprintf (buf, sizeof (buf), "%" PRId64, pi->start());
} else {
- snprintf (buf, sizeof (buf), "%" PRIu32, _session.transport_frame());
+ snprintf (buf, sizeof (buf), "%" PRId64, _session.transport_frame());
}
cs_child->add_property (X_("at"), buf);
- node->add_child_nocopy (*cs_child);
+ node.add_child_nocopy (*cs_child);
}
- if (_extra_xml) {
- node->add_child_copy (*_extra_xml);
- }
-
- return* node;
+ return node;
}
int
-MidiDiskstream::set_state (const XMLNode& node)
+MidiDiskstream::set_state (const XMLNode& node, int version)
{
- const XMLProperty* prop;
XMLNodeList nlist = node.children();
XMLNodeIterator niter;
- uint32_t nchans = 1;
XMLNode* capture_pending_node = 0;
LocaleGuard lg (X_("POSIX"));
- in_set_state = true;
+ /* prevent write sources from being created */
- for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
- /*if ((*niter)->name() == IO::state_node_name) {
- deprecated_io_node = new XMLNode (**niter);
- }*/
- assert ((*niter)->name() != IO::state_node_name);
+ in_set_state = true;
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
if ((*niter)->name() == X_("CapturingSources")) {
capture_pending_node = *niter;
}
- }
-
- /* prevent write sources from being created */
-
- in_set_state = true;
-
- if ((prop = node.property ("name")) != 0) {
- _name = prop->value();
- }
-
- if ((prop = node.property ("id")) != 0) {
- _id = prop->value ();
}
- if ((prop = node.property ("flags")) != 0) {
- _flags = strtol (prop->value().c_str(), 0, 0);
- }
-
- if ((prop = node.property ("channels")) != 0) {
- nchans = atoi (prop->value().c_str());
- }
-
- if ((prop = node.property ("playlist")) == 0) {
+ if (Diskstream::set_state (node, version)) {
return -1;
}
- {
- bool had_playlist = (_playlist != 0);
-
- if (find_and_use_playlist (prop->value())) {
- return -1;
- }
-
- if (!had_playlist) {
- _playlist->set_orig_diskstream_id (_id);
- }
-
- if (capture_pending_node) {
- use_pending_capture_data (*capture_pending_node);
- }
-
- }
-
- if ((prop = node.property ("speed")) != 0) {
- double sp = atof (prop->value().c_str());
-
- if (realtime_set_speed (sp, false)) {
- non_realtime_set_speed ();
- }
+ if (capture_pending_node) {
+ use_pending_capture_data (*capture_pending_node);
}
in_set_state = false;
- /* make sure this is clear before we do anything else */
-
- // FIXME?
- //_capturing_source = 0;
-
- /* write sources are handled when we handle the input set
- up of the IO that owns this DS (::non_realtime_input_change())
- */
-
- in_set_state = false;
-
return 0;
}
int
MidiDiskstream::use_new_write_source (uint32_t n)
{
- if (!recordable()) {
+ if (!_session.writable() || !recordable()) {
return 1;
}
- assert(n == 0);
-
- if (_write_source) {
-
- if (SMFSource::is_empty (_write_source->path())) {
- _write_source->mark_for_remove ();
- _write_source->release();
- delete _write_source;
- } else {
- _write_source->release();
- _write_source = 0;
- }
- }
+ _write_source.reset();
try {
- _write_source = dynamic_cast<SMFSource*>(_session.create_midi_source_for_session (*this));
+ _write_source = boost::dynamic_pointer_cast<SMFSource>(
+ _session.create_midi_source_for_session (0, name ()));
+
if (!_write_source) {
throw failed_constructor();
}
- }
+ }
catch (failed_constructor &err) {
error << string_compose (_("%1:%2 new capture file not initialized correctly"), _name, n) << endmsg;
- _write_source = 0;
+ _write_source.reset();
return -1;
}
- _write_source->use ();
- _write_source->set_allow_remove_if_empty (true);
-
return 0;
}
+list<boost::shared_ptr<Source> >
+MidiDiskstream::steal_write_sources()
+{
+ list<boost::shared_ptr<Source> > ret;
+
+ /* put some data on the disk, even if its just a header for an empty file */
+ boost::dynamic_pointer_cast<SMFSource> (_write_source)->ensure_disk_file ();
+
+ /* never let it go away */
+ _write_source->mark_nonremovable ();
+
+ ret.push_back (_write_source);
+
+ /* get a new one */
+
+ use_new_write_source (0);
+
+ return ret;
+}
+
void
-MidiDiskstream::reset_write_sources (bool mark_write_complete, bool force)
+MidiDiskstream::reset_write_sources (bool mark_write_complete, bool /*force*/)
{
- if (!recordable()) {
+ if (!_session.writable() || !recordable()) {
return;
}
if (_write_source && mark_write_complete) {
_write_source->mark_streaming_write_completed ();
}
- use_new_write_source ();
- assert(_write_source);
-}
-
-int
-MidiDiskstream::rename_write_sources ()
-{
- if (_write_source != 0) {
- _write_source->set_name (_name, destructive());
- /* XXX what to do if this fails ? */
- }
- return 0;
+ use_new_write_source (0);
}
void
-MidiDiskstream::set_block_size (jack_nframes_t nframes)
+MidiDiskstream::set_block_size (pframes_t /*nframes*/)
{
}
}
void
-MidiDiskstream::monitor_input (bool yn)
+MidiDiskstream::ensure_jack_monitors_input (bool yn)
{
- if (_source_port)
- _source_port->request_monitor_input (yn);
- else
- cerr << "MidiDiskstream NO SOURCE PORT TO MONITOR\n";
+ boost::shared_ptr<MidiPort> sp = _source_port.lock ();
+
+ if (sp) {
+ sp->ensure_jack_monitors_input (yn);
+ }
}
void
MidiDiskstream::set_align_style_from_io ()
{
- bool have_physical = false;
-
- if (_io == 0) {
+ if (_alignment_choice != Automatic) {
return;
}
- get_input_sources ();
-
- if (_source_port && _source_port->flags() & JackPortIsPhysical) {
- have_physical = true;
- }
+ /* XXX Not sure what, if anything we can do with MIDI
+ as far as capture alignment etc.
+ */
- if (have_physical) {
- set_align_style (ExistingMaterial);
- } else {
- set_align_style (CaptureTime);
- }
+ set_align_style (ExistingMaterial);
}
float
MidiDiskstream::playback_buffer_load () const
{
- return (float) ((double) _playback_buf->read_space()/
- (double) _playback_buf->capacity());
+ /* For MIDI it's not trivial to differentiate the following two cases:
+
+ 1. The playback buffer is empty because the system has run out of time to fill it.
+ 2. The playback buffer is empty because there is no more data on the playlist.
+
+ If we use a simple buffer load computation, we will report that the MIDI diskstream
+ cannot keep up when #2 happens, when in fact it can. Since MIDI data rates
+ are so low compared to audio, just give a pretend answer here.
+ */
+
+ return 1;
}
float
MidiDiskstream::capture_buffer_load () const
{
- return (float) ((double) _capture_buf->write_space()/
- (double) _capture_buf->capacity());
+ /* We don't report playback buffer load, so don't report capture load either */
+
+ return 1;
}
-
int
-MidiDiskstream::use_pending_capture_data (XMLNode& node)
+MidiDiskstream::use_pending_capture_data (XMLNode& /*node*/)
{
return 0;
}
-/** Writes playback events in the given range to dst, translating time stamps
- * so that an event at start has time = 0
+void
+MidiDiskstream::flush_playback (framepos_t start, framepos_t end)
+{
+ _playback_buf->flush (start, end);
+ g_atomic_int_add (&_frames_read_from_ringbuffer, end - start);
+}
+
+/** Writes playback events from playback_sample for nframes to dst, translating time stamps
+ * so that an event at playback_sample has time = 0
*/
void
-MidiDiskstream::get_playback(MidiBuffer& dst, jack_nframes_t start, jack_nframes_t end)
+MidiDiskstream::get_playback (MidiBuffer& dst, framecnt_t nframes)
{
- assert(end > start);
dst.clear();
- assert(dst.size() == 0);
-/*
- cerr << "MIDI Diskstream pretending to read" << endl;
- MidiEvent ev;
- RawMidi data[4];
+ Location* loc = loop_location;
- const char note = rand()%30 + 30;
-
- ev.buffer = data;
- ev.time = 0;
- ev.size = 3;
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose (
+ "%1 MDS pre-read read %8 @ %4..%5 from %2 write to %3, LOOPED ? %6-%7\n", _name,
+ _playback_buf->get_read_ptr(), _playback_buf->get_write_ptr(), playback_sample, playback_sample + nframes,
+ (loc ? loc->start() : -1), (loc ? loc->end() : -1), nframes));
+
+ // cerr << "================\n";
+ // _playback_buf->dump (cerr);
+ // cerr << "----------------\n";
+
+ size_t events_read = 0;
- data[0] = 0x90;
- data[1] = note;
- data[2] = 120;
+ if (loc) {
+ framepos_t effective_start;
- dst.push_back(ev);
+ if (playback_sample >= loc->end()) {
+ effective_start = loc->start() + ((playback_sample - loc->end()) % loc->length());
+ } else {
+ effective_start = playback_sample;
+ }
+
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("looped, effective start adjusted to %1\n", effective_start));
+
+ if (effective_start == loc->start()) {
+ /* We need to turn off notes that may extend
+ beyond the loop end.
+ */
+
+ _playback_buf->loop_resolve (dst, 0);
+ }
+
+ if (loc->end() >= effective_start && loc->end() < effective_start + nframes) {
+ /* end of loop is within the range we are reading, so
+ split the read in two, and lie about the location
+ for the 2nd read
+ */
+ framecnt_t first, second;
+
+ first = loc->end() - effective_start;
+ second = nframes - first;
+
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("loop read for eff %1 end %2: %3 and %4\n",
+ effective_start, loc->end(), first, second));
+
+ if (first) {
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("loop read #1, from %1 for %2\n",
+ effective_start, first));
+ events_read = _playback_buf->read (dst, effective_start, first);
+ }
+
+ if (second) {
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("loop read #2, from %1 for %2\n",
+ loc->start(), second));
+ events_read += _playback_buf->read (dst, loc->start(), second);
+ }
+
+ } else {
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("loop read #3, adjusted start as %1 for %2\n",
+ effective_start, nframes));
+ events_read = _playback_buf->read (dst, effective_start, effective_start + nframes);
+ }
+ } else {
+ events_read = _playback_buf->read (dst, playback_sample, playback_sample + nframes);
+ }
+
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose (
+ "%1 MDS events read %2 range %3 .. %4 rspace %5 wspace %6 r@%7 w@%8\n",
+ _name, events_read, playback_sample, playback_sample + nframes,
+ _playback_buf->read_space(), _playback_buf->write_space(),
+ _playback_buf->get_read_ptr(), _playback_buf->get_write_ptr()));
+
+ g_atomic_int_add (&_frames_read_from_ringbuffer, nframes);
+}
+
+bool
+MidiDiskstream::set_name (string const & name)
+{
+ Diskstream::set_name (name);
+
+ /* get a new write source so that its name reflects the new diskstream name */
+ use_new_write_source (0);
+
+ return true;
+}
+
+boost::shared_ptr<MidiBuffer>
+MidiDiskstream::get_gui_feed_buffer () const
+{
+ boost::shared_ptr<MidiBuffer> b (new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI)));
- ev.buffer = data;
- ev.time = (end - start) / 2;
- ev.size = 3;
+ Glib::Threads::Mutex::Lock lm (_gui_feed_buffer_mutex);
+ b->copy (_gui_feed_buffer);
+ return b;
+}
- data[0] = 0x80;
- data[1] = note;
- data[2] = 64;
-*/
- _playback_buf->read(dst, start, end);
+void
+MidiDiskstream::reset_tracker ()
+{
+ _playback_buf->reset_tracker ();
+
+ boost::shared_ptr<MidiPlaylist> mp (midi_playlist());
- // Translate time stamps to be relative to the start of this cycle
- for (size_t i=0; i < dst.size(); ++i) {
- assert(dst[i].time >= start);
- assert(dst[i].time <= end);
- dst[i].time -= start;
+ if (mp) {
+ mp->clear_note_trackers ();
}
}