#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 <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/ardour.h"
#include "ardour/audioengine.h"
#include "ardour/butler.h"
-#include "ardour/configuration.h"
-#include "ardour/cycle_timer.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/send.h"
#include "ardour/session.h"
+#include "ardour/session_playlists.h"
#include "ardour/smf_source.h"
+#include "ardour/types.h"
#include "ardour/utils.h"
-#include "ardour/session_playlists.h"
-#include "ardour/route.h"
#include "midi++/types.h"
using namespace ARDOUR;
using namespace PBD;
-nframes_t MidiDiskstream::midi_readahead = 4096;
+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)
- , _source_port(0)
- , _last_flush_frame(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 ();
use_new_playlist ();
- use_new_write_source (0);
+ use_new_write_source (0);
in_set_state = false;
- assert(!destructive());
+ if (destructive()) {
+ throw failed_constructor();
+ }
}
MidiDiskstream::MidiDiskstream (Session& sess, const XMLNode& node)
: Diskstream(sess, node)
, _playback_buf(0)
, _capture_buf(0)
- , _source_port(0)
- , _last_flush_frame(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;
throw failed_constructor();
}
- use_new_write_source (0);
+ use_new_write_source (0);
in_set_state = false;
}
allocate_temporary_buffers ();
const size_t size = _session.butler()->midi_diskstream_buffer_size();
- _playback_buf = new MidiRingBuffer<nframes_t>(size);
- _capture_buf = new MidiRingBuffer<nframes_t>(size);
+ _playback_buf = new MidiRingBuffer<framepos_t>(size);
+ _capture_buf = new MidiRingBuffer<framepos_t>(size);
_n_channels = ChanCount(DataType::MIDI, 1);
-
- assert(recordable());
}
MidiDiskstream::~MidiDiskstream ()
{
- Glib::Mutex::Lock lm (state_lock);
+ Glib::Threads::Mutex::Lock lm (state_lock);
}
void
-MidiDiskstream::non_realtime_locate (nframes_t position)
+MidiDiskstream::non_realtime_locate (framepos_t position)
{
if (_write_source) {
_write_source->set_timeline_position (position);
}
- seek(position, false);
+ seek (position, false);
}
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 (_io->n_ports().n_midi() != _n_channels.n_midi()) {
- error << "Can not feed IO " << _io->n_ports()
- << " with diskstream " << _n_channels << endl;
+ if (input_change_pending.type & IOChange::ConfigurationChanged) {
+ uint32_t ni = _io->n_ports().n_midi();
+
+ 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;
/* implicit unlock */
}
- /* 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.
- */
+ /* 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 ((nframes_t) (_session.transport_frame() * (double) speed()));
+ seek ((framepos_t) (_session.transport_frame() * (double) speed()));
}
else {
seek (_session.transport_frame());
}
- _last_flush_frame = _session.transport_frame();
-}
-
-void
-MidiDiskstream::get_input_sources ()
-{
- uint32_t ni = _io->n_ports().n_midi();
-
- if (ni == 0) {
- return;
- }
-
- // This is all we do for now at least
- assert(ni == 1);
-
- _source_port = _io->midi(0);
-
- // do... stuff?
+ g_atomic_int_set(&_frames_pending_write, 0);
+ g_atomic_int_set(&_num_captured_loops, 0);
}
int
}
if (!playlist) {
- error << string_compose(_("MidiDiskstream: Playlist \"%1\" isn't an midi playlist"), name) << endmsg;
+ error << string_compose(_("MidiDiskstream: Playlist \"%1\" isn't a midi playlist"), name) << endmsg;
return -1;
}
int
MidiDiskstream::use_playlist (boost::shared_ptr<Playlist> playlist)
{
- assert(boost::dynamic_pointer_cast<MidiPlaylist>(playlist));
-
- Diskstream::use_playlist(playlist);
+ if (boost::dynamic_pointer_cast<MidiPlaylist>(playlist)) {
+ Diskstream::use_playlist(playlist);
+ }
return 0;
}
if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist> (PlaylistFactory::create (
DataType::MIDI, _session, newname, hidden()))) != 0) {
- playlist->set_orig_diskstream_id (id());
return use_playlist (playlist);
} else {
int
MidiDiskstream::use_copy_playlist ()
{
- assert(midi_playlist());
-
if (destructive()) {
return 0;
}
newname = Playlist::bump_name (_playlist->name(), _session);
if ((playlist = boost::dynamic_pointer_cast<MidiPlaylist>(PlaylistFactory::create (midi_playlist(), newname))) != 0) {
- playlist->set_orig_diskstream_id (id());
return use_playlist (playlist);
} else {
return -1;
int
MidiDiskstream::set_destructive (bool yn)
{
- assert( ! destructive());
- assert( ! yn);
- return -1;
+ return yn ? -1 : 0;
}
void
_write_source->model()->set_note_mode(m);
}
-#if 0
+/** 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
-trace_midi (ostream& o, MIDI::byte *msg, size_t len)
+get_location_times(const Location* location,
+ framepos_t* start,
+ framepos_t* end,
+ framepos_t* length)
{
- using namespace MIDI;
- eventType type;
- const char trace_prefix = ':';
-
- type = (eventType) (msg[0]&0xF0);
-
- switch (type) {
- case off:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " NoteOff NoteNum "
- << (int) msg[1]
- << " Vel "
- << (int) msg[2]
- << endl;
- break;
-
- case on:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " NoteOn NoteNum "
- << (int) msg[1]
- << " Vel "
- << (int) msg[2]
- << endl;
- break;
-
- case polypress:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " PolyPressure"
- << (int) msg[1]
- << endl;
- break;
-
- case MIDI::controller:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " Controller "
- << (int) msg[1]
- << " Value "
- << (int) msg[2]
- << endl;
- break;
-
- case program:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " Program Change ProgNum "
- << (int) msg[1]
- << endl;
- break;
-
- case chanpress:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " Channel Pressure "
- << (int) msg[1]
- << endl;
- break;
-
- case MIDI::pitchbend:
- o << trace_prefix
- << "Channel "
- << (msg[0]&0xF)+1
- << " Pitch Bend "
- << ((msg[2]<<7)|msg[1])
- << endl;
- break;
-
- case MIDI::sysex:
- if (len == 1) {
- switch (msg[0]) {
- case 0xf8:
- o << trace_prefix
- << "Clock"
- << endl;
- break;
- case 0xfa:
- o << trace_prefix
- << "Start"
- << endl;
- break;
- case 0xfb:
- o << trace_prefix
- << "Continue"
- << endl;
- break;
- case 0xfc:
- o << trace_prefix
- << "Stop"
- << endl;
- break;
- case 0xfe:
- o << trace_prefix
- << "Active Sense"
- << endl;
- break;
- case 0xff:
- o << trace_prefix
- << "System Reset"
- << endl;
- break;
- default:
- o << trace_prefix
- << "System Exclusive (1 byte : " << hex << (int) *msg << dec << ')'
- << endl;
- break;
- }
- } else {
- o << trace_prefix
- << "System Exclusive (" << len << ") = [ " << hex;
- for (unsigned int i = 0; i < len; ++i) {
- o << (int) msg[i] << ' ';
- }
- o << dec << ']' << endl;
-
- }
- break;
-
- case MIDI::song:
- o << trace_prefix << "Song" << endl;
- break;
-
- case MIDI::tune:
- o << trace_prefix << "Tune" << endl;
- break;
-
- case MIDI::eox:
- o << trace_prefix << "End-of-System Exclusive" << endl;
- break;
-
- case MIDI::timing:
- o << trace_prefix << "Timing" << endl;
- break;
-
- case MIDI::start:
- o << trace_prefix << "Start" << endl;
- break;
-
- case MIDI::stop:
- o << trace_prefix << "Stop" << endl;
- break;
-
- case MIDI::contineu:
- o << trace_prefix << "Continue" << endl;
- break;
-
- case active:
- o << trace_prefix << "Active Sense" << endl;
- break;
-
- default:
- o << trace_prefix << "Unrecognized MIDI message" << endl;
- break;
+ if (location) {
+ *start = location->start();
+ *end = location->end();
+ *length = *end - *start;
}
}
-#endif
int
-MidiDiskstream::process (nframes_t transport_frame, nframes_t nframes, bool can_record, bool rec_monitors_input, bool& need_butler)
+MidiDiskstream::process (BufferSet& bufs, framepos_t transport_frame, pframes_t nframes, framecnt_t& playback_distance, bool need_disk_signal)
{
- int ret = -1;
- nframes_t rec_offset = 0;
- nframes_t rec_nframes = 0;
+ framecnt_t rec_offset = 0;
+ framecnt_t rec_nframes = 0;
bool nominally_recording;
bool re = record_enabled ();
+ bool can_record = _session.actively_recording ();
- playback_distance = 0;
+ playback_distance = 0;
- check_record_status (transport_frame, nframes, can_record);
+ check_record_status (transport_frame, can_record);
nominally_recording = (can_record && re);
return 0;
}
- Glib::Mutex::Lock sm (state_lock, Glib::TRY_LOCK);
+ boost::shared_ptr<MidiPort> sp = _source_port.lock ();
+
+ if (sp == 0) {
+ return 1;
+ }
+
+ Glib::Threads::Mutex::Lock sm (state_lock, Glib::Threads::TRY_LOCK);
- if (!sm.locked()) {
+ if (!sm.locked()) {
return 1;
}
+ 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);
+
adjust_capture_position = 0;
- if (nominally_recording || (_session.get_record_enabled() && _session.config.get_punch_in())) {
- OverlapType ot = coverage (first_recordable_frame, last_recordable_frame, transport_frame, transport_frame + nframes);
+ 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);
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_sources.empty()) {
_last_capture_sources.clear ();
}
if (nominally_recording || rec_nframes) {
// Pump entire port buffer into the ring buffer (FIXME: split cycles?)
- MidiBuffer& buf = _source_port->get_midi_buffer(nframes);
+ 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) {
- const Evoral::MIDIEvent<MidiBuffer::TimeType> ev(*i, false);
- assert(ev.buffer());
- _capture_buf->write(ev.time() + transport_frame, ev.type(), ev.size(), ev.buffer());
+ 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());
+ }
+ }
+
+ DataRecorded (_write_source); /* EMIT SIGNAL */
}
} else {
if (was_recording) {
- finish_capture (rec_monitors_input);
+ finish_capture ();
}
}
playback_distance = nframes;
+ } else {
+
+ /* XXX: should be doing varispeed stuff here, similar to the code in AudioDiskstream::process */
+
+ playback_distance = nframes;
+
}
- ret = 0;
+ 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);
+ }
- if (commit (nframes)) {
- need_butler = true;
- }
+ return 0;
+}
- return ret;
+frameoffset_t
+MidiDiskstream::calculate_playback_distance (pframes_t nframes)
+{
+ frameoffset_t playback_distance = nframes;
+
+ /* XXX: should be doing varispeed stuff once it's implemented in ::process() above */
+
+ if (_actual_speed < 0.0) {
+ return -playback_distance;
+ } else {
+ return playback_distance;
+ }
}
bool
-MidiDiskstream::commit (nframes_t nframes)
+MidiDiskstream::commit (framecnt_t playback_distance)
{
bool need_butler = false;
adjust_capture_position = 0;
}
- 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) + nframes < midi_readahead) {
- need_butler = true;
+ 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;
+ */
+
+ /* 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;
+ }
}
- /*cerr << "MDS written: " << frames_written << " - read: " << frames_read <<
- " = " << frames_written - frames_read
- << " + " << nframes << " < " << midi_readahead << " = " << need_butler << ")" << endl;*/
return need_butler;
}
/* called from audio thread, so we can use the read ptr and playback sample as we wish */
_pending_overwrite = yn;
-
overwrite_frame = playback_sample;
}
int
MidiDiskstream::overwrite_existing_buffers ()
{
- //read(overwrite_frame, disk_io_chunk_frames, false);
+ /* 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;
}
int
-MidiDiskstream::seek (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);
}
int
-MidiDiskstream::can_internal_playback_seek (nframes_t distance)
+MidiDiskstream::can_internal_playback_seek (framecnt_t distance)
{
uint32_t frames_read = g_atomic_int_get(&_frames_read_from_ringbuffer);
uint32_t frames_written = g_atomic_int_get(&_frames_written_to_ringbuffer);
}
int
-MidiDiskstream::internal_playback_seek (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 (nframes_t& start, nframes_t dur, bool reversed)
+MidiDiskstream::read (framepos_t& start, framecnt_t dur, bool reversed)
{
- nframes_t this_read = 0;
- bool reloop = false;
- nframes_t loop_end = 0;
- nframes_t loop_start = 0;
- Location *loc = 0;
+ 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) {
- nframes_t loop_length = 0;
-
- /* 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.
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;
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;
+ id(), this_read, start) << endmsg;
return -1;
}
-
- g_atomic_int_add(&_frames_written_to_ringbuffer, this_read);
-
- _read_data_count = _playlist->read_data_count();
+
+ g_atomic_int_add (&_frames_written_to_ringbuffer, this_read);
if (reversed) {
} 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.
- _playback_buf->write(loop_end - 1, LoopEventType, 0, 0);
- cout << "Pushing LoopEvent ts=" << loop_end-1
- << " start+this_read " << start+this_read << endl;
-
start = loop_start;
} else {
start += this_read;
}
/* at end: nothing to do */
- if (file_frame == max_frames) {
+ if (file_frame == max_framepos) {
return 0;
}
- // At this point we...
- assert(_playback_buf->write_space() > 0); // ... have something to write to, and
- assert(file_frame <= max_frames); // ... something to write
+ /* no space to write */
+ if (_playback_buf->write_space() == 0) {
+ return 0;
+ }
- // now calculate how much time is in the ringbuffer.
- // and lets write as much as we need to get this to be midi_readahead;
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) {
- //cout << "MDS Nothing to do. all fine" << endl;
return 0;
}
- nframes_t to_read = midi_readahead - (frames_written - frames_read);
+ framecnt_t to_read = midi_readahead - (frames_written - frames_read);
//cout << "MDS read for midi_readahead " << to_read << " rb_contains: "
// << frames_written - frames_read << endl;
- to_read = min(to_read, (max_frames - file_frame));
+ to_read = (framecnt_t) min ((framecnt_t) to_read, (framecnt_t) (max_framepos - file_frame));
if (read (file_frame, to_read, reversed)) {
ret = -1;
int
MidiDiskstream::do_flush (RunContext /*context*/, bool force_flush)
{
- uint32_t to_write;
+ framecnt_t to_write;
int32_t ret = 0;
- nframes_t total;
- _write_data_count = 0;
-
- total = _session.transport_frame() - _last_flush_frame;
-
- if (_last_flush_frame > _session.transport_frame()
- || _last_flush_frame < capture_start_frame) {
- _last_flush_frame = _session.transport_frame();
+ if (!_write_source) {
+ return 0;
}
- if (total == 0 || _capture_buf->read_space() == 0
- || (!force_flush && (total < disk_io_chunk_frames && was_recording))) {
+ 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;
}
ret = 1;
}
- to_write = disk_io_chunk_frames;
-
- assert(!destructive());
+ if (force_flush) {
+ /* push out everything we have, right now */
+ to_write = max_framecnt;
+ } else {
+ to_write = disk_io_chunk_frames;
+ }
- if (record_enabled() &&
- ((_session.transport_frame() - _last_flush_frame > disk_io_chunk_frames) ||
- force_flush)) {
- if ((!_write_source) || _write_source->midi_write (*_capture_buf, capture_start_frame, to_write) != to_write) {
- error << string_compose(_("MidiDiskstream %1: cannot write to disk"), _id) << endmsg;
+ 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;
- } else {
- _last_flush_frame = _session.transport_frame();
- }
+ }
+ g_atomic_int_add(&_frames_pending_write, -to_write);
}
out:
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
to flush remaining data to disk.
while (more_work && !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++;
+ 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) {
if (_write_source) {
-
_write_source->mark_for_remove ();
+ _write_source->drop_references ();
_write_source.reset();
}
} else {
- assert(_write_source);
-
- nframes_t total_capture = 0;
+ framecnt_t total_capture = 0;
for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
total_capture += (*ci)->frames;
}
- if (_write_source->length (capture_info.front()->start) != 0) {
-
- /* phew, we have data */
-
- /* figure out the name for this take */
-
- srcs.push_back (_write_source);
+ if (_write_source->length (capture_info.front()->start) != 0) {
- _write_source->set_timeline_position (capture_info.front()->start);
- _write_source->set_captured_for (_name);
+ /* phew, we have data */
- /* flush to disk: this step differs from the audio path,
- where all the data is already on disk.
- */
+ /* figure out the name for this take */
- _write_source->mark_streaming_write_completed ();
-
- /* make it not a stub anymore */
+ srcs.push_back (_write_source);
- _write_source->unstubify ();
+ _write_source->set_timeline_position (capture_info.front()->start);
+ _write_source->set_captured_for (_name);
- /* 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.
- */
+ /* set length in beats to entire capture length */
- string whole_file_region_name;
- whole_file_region_name = region_name_from_path (_write_source->name(), true);
-
- /* 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 {
- PropertyList plist;
+ 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);
- 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);
+ /* flush to disk: this step differs from the audio path,
+ where all the data is already on disk.
+ */
- boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
+ _write_source->mark_midi_streaming_write_completed (Evoral::Sequence<Evoral::MusicalTime>::ResolveStuckNotes, total_capture_beats);
- region = boost::dynamic_pointer_cast<MidiRegion> (rx);
- region->special_set_position (capture_info.front()->start);
- }
+ /* 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.
+ */
+ string whole_file_region_name;
+ whole_file_region_name = region_name_from_path (_write_source->name(), true);
- catch (failed_constructor& err) {
- error << string_compose(_("%1: could not create region for complete midi file"), _name) << endmsg;
- /* XXX what now? */
- }
+ /* 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!)
+ */
- _last_capture_sources.insert (_last_capture_sources.end(), srcs.begin(), srcs.end());
+ try {
+ PropertyList plist;
- _playlist->clear_history ();
- _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);
- uint32_t buffer_position = 0;
- for (buffer_position = 0, ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
+ boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
- string region_name;
+ region = boost::dynamic_pointer_cast<MidiRegion> (rx);
+ region->special_set_position (capture_info.front()->start);
+ }
- RegionFactory::region_name (region_name, _write_source->name(), false);
- // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add a region\n";
+ catch (failed_constructor& err) {
+ error << string_compose(_("%1: could not create region for complete midi file"), _name) << endmsg;
+ /* XXX what now? */
+ }
- try {
- PropertyList plist;
-
- plist.add (Properties::start, buffer_position);
- plist.add (Properties::length, (*ci)->frames);
- plist.add (Properties::name, region_name);
-
- boost::shared_ptr<Region> rx (RegionFactory::create (srcs, plist));
- region = boost::dynamic_pointer_cast<MidiRegion> (rx);
- }
+ _last_capture_sources.insert (_last_capture_sources.end(), srcs.begin(), srcs.end());
- catch (failed_constructor& err) {
- error << _("MidiDiskstream: could not create region for captured midi!") << endmsg;
- continue; /* XXX is this OK? */
- }
+ _playlist->clear_changes ();
+ _playlist->freeze ();
- // cerr << "add new region, buffer position = " << buffer_position << " @ " << (*ci)->start << endl;
+ /* 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;
+ }
+
+ for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
+
+ string region_name;
+
+ RegionFactory::region_name (region_name, _write_source->name(), false);
+
+ // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add a region\n";
- i_am_the_modifier++;
- _playlist->add_region (region, (*ci)->start);
- i_am_the_modifier--;
+ try {
+ PropertyList plist;
- buffer_position += (*ci)->frames;
- }
+ /* 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);
- _playlist->thaw ();
- _session.add_command (new StatefulDiffCommand(_playlist));
- }
+ 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? */
+ }
+
+ // cerr << "add new region, buffer position = " << buffer_position << " @ " << (*ci)->start << endl;
+
+ i_am_the_modifier++;
+ _playlist->add_region (region, (*ci)->start);
+ i_am_the_modifier--;
+ }
+
+ _playlist->thaw ();
+ _session.add_command (new StatefulDiffCommand(_playlist));
+
+ } else {
+
+ /* 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();
+ }
+ }
- mark_write_completed = true;
}
- use_new_write_source (0);
+ use_new_write_source (0);
for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
delete *ci;
}
- if (_playlist) {
- midi_playlist()->clear_note_trackers ();
- }
-
capture_info.clear ();
capture_start_frame = 0;
+
+ no_capture_stuff_to_do:
+
+ reset_tracker ();
}
void
-MidiDiskstream::transport_looped (nframes_t transport_frame)
+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) {
-
- // adjust the capture length knowing that the data will be recorded to disk
- // only necessary after the first loop where we're recording
- if (capture_info.size() == 0) {
- capture_captured += _capture_offset;
-
- if (_alignment_style == ExistingMaterial) {
- capture_captured += _session.worst_output_latency();
- } else {
- capture_captured += _roll_delay;
- }
- }
-
- finish_capture (true);
-
- // the next region will start recording via the normal mechanism
- // we'll set the start position to the current transport pos
- // no latency adjustment or capture offset needs to be made, as that already happened the first time
- capture_start_frame = transport_frame;
- first_recordable_frame = transport_frame; // mild lie
- last_recordable_frame = max_frames;
- was_recording = true;
+ g_atomic_int_add(&_num_captured_loops, 1);
}
}
void
-MidiDiskstream::finish_capture (bool /*rec_monitors_input*/)
+MidiDiskstream::finish_capture ()
{
was_recording = false;
return;
}
- // Why must we destroy?
- assert(!destructive());
-
CaptureInfo* ci = new CaptureInfo;
ci->start = capture_start_frame;
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());
-
/* 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;
+ }
- g_atomic_int_set (&_record_enabled, 1);
+ bool const rolling = _session.transport_speed() != 0.0f;
- if (_source_port && Config->get_monitoring_model() == HardwareMonitoring) {
- _source_port->request_monitor_input (!(_session.config.get_auto_input() && rolling));
+ boost::shared_ptr<MidiPort> sp = _source_port.lock ();
+
+ if (sp && Config->get_monitoring_model() == HardwareMonitoring) {
+ sp->request_jack_monitors_input (!(_session.config.get_auto_input() && rolling));
}
- _write_source->mark_streaming_midi_write_started (_note_mode, _session.transport_frame());
-
- RecordEnableChanged (); /* EMIT SIGNAL */
+ return true;
}
-void
-MidiDiskstream::disengage_record_enable ()
+bool
+MidiDiskstream::prep_record_disable ()
{
- g_atomic_int_set (&_record_enabled, 0);
- if (_source_port && Config->get_monitoring_model() == HardwareMonitoring) {
- if (_source_port) {
- _source_port->request_monitor_input (false);
- }
- }
- RecordEnableChanged (); /* EMIT SIGNAL */
+ return true;
}
XMLNode&
MidiDiskstream::get_state ()
{
- XMLNode* node = new XMLNode ("Diskstream");
+ 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("channel-mode", enum_2_string(get_channel_mode()));
-
- snprintf (buf, sizeof(buf), "0x%x", get_channel_mask());
- node->add_property("channel-mask", 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, sizeof(buf));
- node->add_property("id", buf);
-
if (_write_source && _session.get_record_enabled()) {
XMLNode* cs_child = new XMLNode (X_("CapturingSources"));
}
cs_child->add_property (X_("at"), buf);
- node->add_child_nocopy (*cs_child);
- }
-
- if (_extra_xml) {
- node->add_child_copy (*_extra_xml);
+ node.add_child_nocopy (*cs_child);
}
- return* node;
+ return node;
}
int
-MidiDiskstream::set_state (const XMLNode& node, int /*version*/)
+MidiDiskstream::set_state (const XMLNode& node, int version)
{
- const XMLProperty* prop;
XMLNodeList nlist = node.children();
XMLNodeIterator niter;
XMLNode* capture_pending_node = 0;
LocaleGuard lg (X_("POSIX"));
+ /* prevent write sources from being created */
+
in_set_state = true;
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);
-
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 = Flag (string_2_enum (prop->value(), _flags));
- }
-
- ChannelMode channel_mode = AllChannels;
- if ((prop = node.property ("channel-mode")) != 0) {
- channel_mode = ChannelMode (string_2_enum(prop->value(), channel_mode));
- }
-
- unsigned int channel_mask = 0xFFFF;
- if ((prop = node.property ("channel-mask")) != 0) {
- sscanf (prop->value().c_str(), "0x%x", &channel_mask);
- if (channel_mask & (~0xFFFF)) {
- warning << _("MidiDiskstream: XML property channel-mask out of range") << endmsg;
- }
- }
-
- set_channel_mode(channel_mode, channel_mask);
-
- 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;
return 1;
}
- assert(n == 0);
-
- _write_source.reset();
+ _write_source.reset();
try {
- /* file starts off as a stub file, it will be converted
- when we're done with a capture pass, or when "stolen"
- by the GUI.
- */
-
_write_source = boost::dynamic_pointer_cast<SMFSource>(
- _session.create_midi_source_for_session (0, name (), true));
+ _session.create_midi_source_for_session (0, name ()));
if (!_write_source) {
throw failed_constructor();
return -1;
}
- _write_source->mark_streaming_midi_write_started (_note_mode, _session.transport_frame());
-
return 0;
}
-list<boost::shared_ptr<Source> >
+list<boost::shared_ptr<Source> >
MidiDiskstream::steal_write_sources()
{
- list<boost::shared_ptr<Source> > ret;
+ list<boost::shared_ptr<Source> > ret;
- /* put some data on the disk, even if its just a header for an empty file.
- XXX should we not have a more direct method for doing this? Maybe not
- since we don't want to mess around with the model/disk relationship
- that the Source has to pay attention to.
- */
-
- boost::dynamic_pointer_cast<MidiSource>(_write_source)->session_saved ();
+ /* 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 ();
- /* make it visible/present */
- _write_source->unstubify ();
- /* never let it go away */
- _write_source->mark_nonremovable ();
+ /* never let it go away */
+ _write_source->mark_nonremovable ();
- ret.push_back (_write_source);
+ ret.push_back (_write_source);
- /* get a new one */
+ /* get a new one */
- use_new_write_source (0);
+ use_new_write_source (0);
- return ret;
+ return ret;
}
void
if (_write_source && mark_write_complete) {
_write_source->mark_streaming_write_completed ();
- }
- use_new_write_source (0);
-}
-
-int
-MidiDiskstream::rename_write_sources ()
-{
- if (_write_source != 0) {
- _write_source->set_source_name (_name.val(), destructive());
- /* XXX what to do if this fails ? */
}
- return 0;
+ use_new_write_source (0);
}
void
-MidiDiskstream::set_block_size (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->ensure_monitor_input (yn);
+ 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
return 0;
}
-/** Writes playback events in the given range to \a dst, translating time stamps
- * so that an event at \a 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, nframes_t start, nframes_t end)
+MidiDiskstream::get_playback (MidiBuffer& dst, framecnt_t nframes)
{
dst.clear();
- assert(dst.size() == 0);
- // Reverse. ... We just don't do reverse, ok? Back off.
- if (end <= start) {
- return;
+ Location* loc = loop_location;
+
+ 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;
+
+ if (loc) {
+ framepos_t effective_start;
+
+ 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);
}
- // Translates stamps to be relative to start
+ 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);
+}
-#ifndef NDEBUG
- const size_t events_read = _playback_buf->read(dst, start, end);
- DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("%1 MDS events read %2 range %3 .. %4 rspace %5 wspace %6\n", _name, events_read, start, end,
- _playback_buf->read_space(), _playback_buf->write_space()));
-#else
- _playback_buf->read(dst, start, end);
-#endif
+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;
+}
- gint32 frames_read = end - start;
- g_atomic_int_add(&_frames_read_from_ringbuffer, frames_read);
+boost::shared_ptr<MidiBuffer>
+MidiDiskstream::get_gui_feed_buffer () const
+{
+ boost::shared_ptr<MidiBuffer> b (new MidiBuffer (AudioEngine::instance()->raw_buffer_size (DataType::MIDI)));
+
+ Glib::Threads::Mutex::Lock lm (_gui_feed_buffer_mutex);
+ b->copy (_gui_feed_buffer);
+ return b;
}
+void
+MidiDiskstream::reset_tracker ()
+{
+ _playback_buf->reset_tracker ();
+
+ boost::shared_ptr<MidiPlaylist> mp (midi_playlist());
+
+ if (mp) {
+ mp->clear_note_trackers ();
+ }
+}
projects / ardour.git / blobdiff