*/
-#include "pbd/i18n.h"
+#include <boost/smart_ptr/scoped_ptr.hpp>
+
+#include "pbd/enumwriter.h"
#include "pbd/memento_command.h"
+#include "ardour/audioengine.h"
#include "ardour/audioplaylist.h"
#include "ardour/audio_buffer.h"
#include "ardour/butler.h"
#include "ardour/debug.h"
#include "ardour/disk_reader.h"
+#include "ardour/midi_ring_buffer.h"
+#include "ardour/midi_playlist.h"
+#include "ardour/midi_track.h"
+#include "ardour/pannable.h"
#include "ardour/playlist.h"
#include "ardour/playlist_factory.h"
#include "ardour/session.h"
#include "ardour/session_playlists.h"
+#include "pbd/i18n.h"
+
using namespace ARDOUR;
using namespace PBD;
using namespace std;
-ARDOUR::framecnt_t DiskReader::_chunk_frames = default_chunk_frames ();
+ARDOUR::samplecnt_t DiskReader::_chunk_samples = default_chunk_samples ();
+PBD::Signal0<void> DiskReader::Underrun;
+Sample* DiskReader::_mixdown_buffer = 0;
+gain_t* DiskReader::_gain_buffer = 0;
+samplecnt_t DiskReader::midi_readahead = 4096;
+bool DiskReader::_no_disk_output = false;
DiskReader::DiskReader (Session& s, string const & str, DiskIOProcessor::Flag f)
: DiskIOProcessor (s, str, f)
- , _roll_delay (0)
- , overwrite_frame (0)
- , overwrite_offset (0)
- , _pending_overwrite (false)
- , overwrite_queued (false)
- , file_frame (0)
- , playback_sample (0)
- , _monitoring_choice (MonitorDisk)
- , channels (new ChannelList)
+ , overwrite_sample (0)
+ , overwrite_offset (0)
+ , _pending_overwrite (false)
+ , overwrite_queued (false)
{
+ file_sample[DataType::AUDIO] = 0;
+ file_sample[DataType::MIDI] = 0;
}
DiskReader::~DiskReader ()
{
- DEBUG_TRACE (DEBUG::Destruction, string_compose ("DiskReader %1 deleted\n", _name));
+ DEBUG_TRACE (DEBUG::Destruction, string_compose ("DiskReader %1 @ %2 deleted\n", _name, this));
- if (_playlist) {
- _playlist->release ();
+ for (uint32_t n = 0; n < DataType::num_types; ++n) {
+ if (_playlists[n]) {
+ _playlists[n]->release ();
+ }
}
{
}
channels.flush ();
+
+ delete _midi_buf;
}
void
_gain_buffer = 0;
}
-framecnt_t
-DiskReader::default_chunk_frames()
+samplecnt_t
+DiskReader::default_chunk_samples()
{
return 65536;
}
bool
DiskReader::set_name (string const & str)
{
- if (_name != str) {
- assert (_playlist);
- _playlist->set_name (str);
- SessionObject::set_name(str);
+ string my_name = X_("player:");
+ my_name += str;
+
+ if (_name != my_name) {
+ SessionObject::set_name (my_name);
}
return true;
}
-void
-DiskReader::set_roll_delay (ARDOUR::framecnt_t nframes)
+XMLNode&
+DiskReader::state ()
{
- _roll_delay = nframes;
+ XMLNode& node (DiskIOProcessor::state ());
+ node.set_property(X_("type"), X_("diskreader"));
+ return node;
}
int
DiskReader::set_state (const XMLNode& node, int version)
{
- XMLProperty const * prop;
-
if (DiskIOProcessor::set_state (node, version)) {
return -1;
}
- if ((prop = node.property ("playlist")) == 0) {
- return -1;
- }
-
- if (find_and_use_playlist (prop->value())) {
- return -1;
- }
-
return 0;
}
-/* Processor interface */
-
-bool
-DiskReader::configure_io (ChanCount in, ChanCount out)
-{
- return true;
-}
-
-bool
-DiskReader::can_support_io_configuration (const ChanCount& in, ChanCount& out)
-{
- return true;
-}
-
void
DiskReader::realtime_handle_transport_stopped ()
{
{
}
-int
-DiskReader::add_channel_to (boost::shared_ptr<ChannelList> c, uint32_t how_many)
-{
- while (how_many--) {
- c->push_back (new ChannelInfo(
- _session.butler()->audio_diskstream_playback_buffer_size(),
- speed_buffer_size, wrap_buffer_size));
- interpolation.add_channel_to (
- _session.butler()->audio_diskstream_playback_buffer_size(),
- speed_buffer_size);
- }
-
- _n_channels.set (DataType::AUDIO, c->size());
-
- return 0;
-}
-
-int
-DiskReader::add_channel (uint32_t how_many)
-{
- RCUWriter<ChannelList> writer (channels);
- boost::shared_ptr<ChannelList> c = writer.get_copy();
-
- return add_channel_to (c, how_many);
-}
-
-int
-DiskReader::remove_channel_from (boost::shared_ptr<ChannelList> c, uint32_t how_many)
+float
+DiskReader::buffer_load () const
{
- while (how_many-- && !c->empty()) {
- delete c->back();
- c->pop_back();
- interpolation.remove_channel_from ();
- }
+ /* Note: for MIDI it's not trivial to differentiate the following two cases:
- _n_channels.set(DataType::AUDIO, c->size());
+ 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.
- return 0;
-}
-
-int
-DiskReader::remove_channel (uint32_t how_many)
-{
- RCUWriter<ChannelList> writer (channels);
- boost::shared_ptr<ChannelList> c = writer.get_copy();
-
- return remove_channel_from (c, how_many);
-}
+ 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 use the audio value here.
+ */
-float
-DiskReader::buffer_load () const
-{
boost::shared_ptr<ChannelList> c = channels.reader();
if (c->empty ()) {
+ /* no channels, so no buffers, so completely full and ready to playback, sir! */
return 1.0;
}
- return (float) ((double) c->front()->buf->read_space()/
- (double) c->front()->buf->bufsize());
+ PBD::RingBufferNPT<Sample> * b = c->front()->buf;
+ return (float) ((double) b->read_space() / (double) b->bufsize());
}
void
}
}
-DiskReader::ChannelInfo::ChannelInfo (framecnt_t bufsize, framecnt_t speed_size, framecnt_t wrap_size)
-{
- current_buffer = 0;
-
- speed_buffer = new Sample[speed_size];
- wrap_buffer = new Sample[wrap_size];
-
- buf = new RingBufferNPT<Sample> (bufsize);
-
- /* touch the ringbuffer buffer, which will cause
- them to be mapped into locked physical RAM if
- we're running with mlockall(). this doesn't do
- much if we're not.
- */
-
- memset (buf->buffer(), 0, sizeof (Sample) * buf->bufsize());
-}
-
-void
-DiskReader::ChannelInfo::resize (framecnt_t bufsize)
-{
- delete buf;
- buf = new RingBufferNPT<Sample> (bufsize);
- memset (buf->buffer(), 0, sizeof (Sample) * buf->bufsize());
-}
-
-DiskReader::ChannelInfo::~ChannelInfo ()
-{
- delete [] speed_buffer;
- speed_buffer = 0;
-
- delete [] wrap_buffer;
- wrap_buffer = 0;
-
- delete buf;
- buf = 0;
-}
-
-int
-DiskReader::set_block_size (pframes_t /*nframes*/)
-{
- if (_session.get_block_size() > speed_buffer_size) {
- speed_buffer_size = _session.get_block_size();
- boost::shared_ptr<ChannelList> c = channels.reader();
-
- for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
- delete [] (*chan)->speed_buffer;
- (*chan)->speed_buffer = new Sample[speed_buffer_size];
- }
- }
- allocate_temporary_buffers ();
- return 0;
-}
-
-void
-DiskReader::allocate_temporary_buffers ()
-{
- /* make sure the wrap buffer is at least large enough to deal
- with the speeds up to 1.2, to allow for micro-variation
- when slaving to MTC, Timecode etc.
- */
-
- double const sp = max (fabs (_actual_speed), 1.2);
- framecnt_t required_wrap_size = (framecnt_t) ceil (_session.get_block_size() * sp) + 2;
-
- if (required_wrap_size > wrap_buffer_size) {
-
- boost::shared_ptr<ChannelList> c = channels.reader();
-
- for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
- if ((*chan)->wrap_buffer) {
- delete [] (*chan)->wrap_buffer;
- }
- (*chan)->wrap_buffer = new Sample[required_wrap_size];
- }
-
- wrap_buffer_size = required_wrap_size;
- }
-}
-
-
void
DiskReader::playlist_changed (const PropertyChange&)
{
DiskReader::playlist_modified ()
{
if (!i_am_the_modifier && !overwrite_queued) {
- // !!!! _session.request_overwrite_buffer (this);
+ _session.request_overwrite_buffer (_route);
overwrite_queued = true;
}
}
-void
-DiskReader::playlist_deleted (boost::weak_ptr<Playlist> wpl)
-{
- boost::shared_ptr<Playlist> pl (wpl.lock());
-
- if (pl == _playlist) {
-
- /* this catches an ordering issue with session destruction. playlists
- are destroyed before disk readers. we have to invalidate any handles
- we have to the playlist.
- */
-
- if (_playlist) {
- _playlist.reset ();
- }
- }
-}
-
int
-DiskReader::use_playlist (boost::shared_ptr<Playlist> playlist)
+DiskReader::use_playlist (
DataType dt, boost::shared_ptr<Playlist> playlist)
{
- if (!playlist) {
- return 0;
- }
-
bool prior_playlist = false;
- {
- Glib::Threads::Mutex::Lock lm (state_lock);
-
- if (playlist == _playlist) {
- return 0;
- }
-
- playlist_connections.drop_connections ();
-
- if (_playlist) {
- _playlist->release();
- prior_playlist = true;
- }
-
- _playlist = playlist;
- _playlist->use();
+ if (_playlists[dt]) {
+ prior_playlist = true;
+ }
- _playlist->ContentsChanged.connect_same_thread (playlist_connections, boost::bind (&DiskReader::playlist_modified, this));
- _playlist->LayeringChanged.connect_same_thread (playlist_connections, boost::bind (&DiskReader::playlist_modified, this));
- _playlist->DropReferences.connect_same_thread (playlist_connections, boost::bind (&DiskReader::playlist_deleted, this, boost::weak_ptr<Playlist>(_playlist)));
- _playlist->RangesMoved.connect_same_thread (playlist_connections, boost::bind (&DiskReader::playlist_ranges_moved, this, _1, _2));
+ if (DiskIOProcessor::use_playlist (dt, playlist)) {
+ return -1;
}
/* don't do this if we've already asked for it *or* if we are setting up
take care of the buffer refill.
*/
- if (!overwrite_queued && prior_playlist) {
- // !!! _session.request_overwrite_buffer (this);
+ if (!overwrite_queued && (prior_playlist || _session.loading())) {
+ _session.request_overwrite_buffer (_route);
overwrite_queued = true;
}
- PlaylistChanged (); /* EMIT SIGNAL */
- _session.set_dirty ();
-
return 0;
}
-int
-DiskReader::find_and_use_playlist (const string& name)
+void
+DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample,
+ double speed, pframes_t nframes, bool result_required)
{
- boost::shared_ptr<AudioPlaylist> playlist;
+ uint32_t n;
+ boost::shared_ptr<ChannelList> c = channels.reader();
+ ChannelList::iterator chan;
+ sampleoffset_t disk_samples_to_consume;
+ MonitorState ms = _route->monitoring_state ();
- if ((playlist = boost::dynamic_pointer_cast<AudioPlaylist> (_session.playlists->by_name (name))) == 0) {
- playlist = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (DataType::AUDIO, _session, name));
+ if (_active) {
+ if (!_pending_active) {
+ _active = false;
+ return;
+ }
+ } else {
+ if (_pending_active) {
+ _active = true;
+ } else {
+ return;
+ }
}
- if (!playlist) {
- error << string_compose(_("DiskReader: Playlist \"%1\" isn't an audio playlist"), name) << endmsg;
- return -1;
+ if ((speed == 0.0) && (ms == MonitoringDisk)) {
+ /* no channels, or stopped. Don't accidentally pass any data
+ * from disk into our outputs (e.g. via interpolation)
+ */
+ return;
}
- return use_playlist (playlist);
-}
+ BufferSet& scratch_bufs (_session.get_scratch_buffers (bufs.count()));
+ const bool still_locating = _session.global_locate_pending();
-int
-DiskReader::use_new_playlist ()
-{
- string newname;
- boost::shared_ptr<AudioPlaylist> playlist;
+ if (c->empty()) {
+ /* do nothing with audio */
+ goto midi;
+ }
- if (_playlist) {
- newname = Playlist::bump_name (_playlist->name(), _session);
+ if (speed != 1.0f && speed != -1.0f) {
+ interpolation.set_speed (speed);
+ disk_samples_to_consume = interpolation.distance (nframes);
+ if (speed < 0.0) {
+ disk_samples_to_consume = -disk_samples_to_consume;
+ }
} else {
- newname = Playlist::bump_name (_name, _session);
+ disk_samples_to_consume = nframes;
}
- if ((playlist = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (DataType::AUDIO, _session, newname, hidden()))) != 0) {
- return use_playlist (playlist);
+ if (!result_required || ((ms & MonitoringDisk) == 0) || still_locating || _no_disk_output) {
- } else {
- return -1;
- }
-}
-
-int
-DiskReader::use_copy_playlist ()
-{
- assert(audio_playlist());
+ /* no need for actual disk data, just advance read pointer and return */
- if (_playlist == 0) {
- error << string_compose(_("DiskReader %1: there is no existing playlist to make a copy of!"), _name) << endmsg;
- return -1;
- }
+ if (!still_locating || _no_disk_output) {
+ for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
+ (*chan)->buf->increment_read_ptr (disk_samples_to_consume);
+ }
+ }
- string newname;
- boost::shared_ptr<AudioPlaylist> playlist;
+ /* if monitoring disk but locating put silence in the buffers */
- newname = Playlist::bump_name (_playlist->name(), _session);
+ if ((_no_disk_output || still_locating) && (ms == MonitoringDisk)) {
+ bufs.silence (nframes, 0);
+ }
- if ((playlist = boost::dynamic_pointer_cast<AudioPlaylist>(PlaylistFactory::create (audio_playlist(), newname))) != 0) {
- playlist->reset_shares();
- return use_playlist (playlist);
} else {
- return -1;
- }
-}
-
-/** Do some record stuff [not described in this comment!]
- *
- * Also:
- * - Setup playback_distance with the nframes, or nframes adjusted
- * for current varispeed, if appropriate.
- * - Setup current_buffer in each ChannelInfo to point to data
- * that someone can read playback_distance worth of data from.
- */
-void
-DiskReader::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame,
- double speed, pframes_t nframes, bool result_required)
-/*
- int
- DiskReader::process (BufferSet& bufs, framepos_t transport_frame, pframes_t nframes,
- framecnt_t& playback_distance, bool need_disk_signal)
-*/
-{
- uint32_t n;
- boost::shared_ptr<ChannelList> c = channels.reader();
- ChannelList::iterator chan;
- framecnt_t playback_distance = 0;
+ /* we need audio data from disk */
- Glib::Threads::Mutex::Lock sm (state_lock, Glib::Threads::TRY_LOCK);
+ size_t n_buffers = bufs.count().n_audio();
+ size_t n_chans = c->size();
+ gain_t scaling;
- if (!sm.locked()) {
- return;
- }
+ if (n_chans > n_buffers) {
+ scaling = ((float) n_buffers)/n_chans;
+ } else {
+ scaling = 1.0;
+ }
- for (chan = c->begin(); chan != c->end(); ++chan) {
- (*chan)->current_buffer = 0;
- }
+ for (n = 0, chan = c->begin(); chan != c->end(); ++chan, ++n) {
- if (result_required || _monitoring_choice == MonitorDisk || _monitoring_choice == MonitorCue) {
+ ChannelInfo* chaninfo (*chan);
+ AudioBuffer& output (bufs.get_audio (n%n_buffers));
+ Sample* disk_signal = 0; /* assignment not really needed but it keeps the compiler quiet and helps track bugs */
- /* we're doing playback */
+ if (ms & MonitoringInput) {
+ /* put disk stream in scratch buffer, blend at end */
+ disk_signal = scratch_bufs.get_audio(n).data ();
+ } else {
+ /* no input stream needed, just overwrite buffers */
+ disk_signal = output.data ();
+ }
- framecnt_t necessary_samples;
+ if (speed > 0) {
+ if (start_sample < playback_sample) {
+ cerr << owner()->name() << " SS = " << start_sample << " PS = " << playback_sample << endl;
+ abort ();
+ }
+ } else if (speed < 0) {
+ if (playback_sample < start_sample) {
+ cerr << owner()->name() << " SS = " << start_sample << " PS = " << playback_sample << " REVERSE" << endl;
+ abort ();
+ }
+ }
- if (_actual_speed != 1.0) {
- necessary_samples = (framecnt_t) ceil ((nframes * fabs (_actual_speed))) + 2;
- } else {
- necessary_samples = nframes;
- }
+ if ((speed > 0) && (start_sample != playback_sample)) {
+ cerr << owner()->name() << " playback not aligned, jump ahead " << (start_sample - playback_sample) << endl;
- for (chan = c->begin(); chan != c->end(); ++chan) {
- (*chan)->buf->get_read_vector (&(*chan)->read_vector);
- }
+ if (can_internal_playback_seek (start_sample - playback_sample)) {
+ internal_playback_seek (start_sample - playback_sample);
+ } else {
+ cerr << owner()->name() << " playback not possible: ss = " << start_sample << " ps = " << playback_sample << endl;
+ goto midi;
+ }
+ }
- n = 0;
+ chaninfo->buf->get_read_vector (&(*chan)->rw_vector);
- /* Setup current_buffer in each ChannelInfo to point to data that someone
- can read necessary_samples (== nframes at a transport speed of 1) worth of data
- from right now.
- */
+ if (disk_samples_to_consume <= (samplecnt_t) chaninfo->rw_vector.len[0]) {
- for (chan = c->begin(); chan != c->end(); ++chan, ++n) {
+ if (fabsf (speed) != 1.0f) {
+ samplecnt_t ocnt = nframes;
+ samplecnt_t icnt = chaninfo->rw_vector.len[0];
+ (void) interpolation.interpolate (n, icnt, chaninfo->rw_vector.buf[0], ocnt, disk_signal);
+ } else if (speed != 0.0) {
+ memcpy (disk_signal, chaninfo->rw_vector.buf[0], sizeof (Sample) * disk_samples_to_consume);
+ }
- ChannelInfo* chaninfo (*chan);
+ } else {
- if (necessary_samples <= (framecnt_t) chaninfo->read_vector.len[0]) {
- /* There are enough samples in the first part of the ringbuffer */
- chaninfo->current_buffer = chaninfo->read_vector.buf[0];
+ const samplecnt_t total = chaninfo->rw_vector.len[0] + chaninfo->rw_vector.len[1];
- } else {
- framecnt_t total = chaninfo->read_vector.len[0] + chaninfo->read_vector.len[1];
+ if (disk_samples_to_consume <= total) {
- if (necessary_samples > total) {
- cerr << _name << " Need " << necessary_samples << " total = " << total << endl;
- cerr << "underrun for " << _name << endl;
- DEBUG_TRACE (DEBUG::Butler, string_compose ("%1 underrun in %2, total space = %3\n",
- DEBUG_THREAD_SELF, name(), total));
- Underrun ();
- return;
+ if (fabsf (speed) != 1.0f) {
+ samplecnt_t ocnt = nframes;
+ interpolation.interpolate (n, chaninfo->rw_vector.len[0], chaninfo->rw_vector.buf[0], ocnt, disk_signal);
- } else {
+ if (ocnt < nframes) {
+ disk_signal += ocnt;
+ ocnt = nframes - ocnt;
+ interpolation.interpolate (n, chaninfo->rw_vector.len[1], chaninfo->rw_vector.buf[1], ocnt, disk_signal);
+ }
- /* We have enough samples, but not in one lump. Coalesce the two parts
- into one in wrap_buffer in our ChannelInfo, and specify that
- as our current_buffer.
- */
+ } else if (speed != 0.0) {
- assert(wrap_buffer_size >= necessary_samples);
+ memcpy (disk_signal,
+ chaninfo->rw_vector.buf[0],
+ chaninfo->rw_vector.len[0] * sizeof (Sample));
+ memcpy (disk_signal + chaninfo->rw_vector.len[0],
+ chaninfo->rw_vector.buf[1],
+ (disk_samples_to_consume - chaninfo->rw_vector.len[0]) * sizeof (Sample));
+ }
- /* Copy buf[0] from buf */
- memcpy ((char *) chaninfo->wrap_buffer,
- chaninfo->read_vector.buf[0],
- chaninfo->read_vector.len[0] * sizeof (Sample));
+ } else {
- /* Copy buf[1] from buf */
- memcpy (chaninfo->wrap_buffer + chaninfo->read_vector.len[0],
- chaninfo->read_vector.buf[1],
- (necessary_samples - chaninfo->read_vector.len[0])
- * sizeof (Sample));
+ cerr << _name << " Need " << disk_samples_to_consume << " total = " << total << endl;
+ cerr << "underrun for " << _name << endl;
+ DEBUG_TRACE (DEBUG::Butler, string_compose ("%1 underrun in %2, total space = %3\n",
+ DEBUG_THREAD_SELF, name(), total));
+ Underrun ();
+ return;
- chaninfo->current_buffer = chaninfo->wrap_buffer;
}
}
- }
- if (_actual_speed != 1.0f && _actual_speed != -1.0f) {
+ if (scaling != 1.0f && speed != 0.0) {
+ apply_gain_to_buffer (disk_signal, disk_samples_to_consume, scaling);
+ }
- interpolation.set_speed (_target_speed);
+ chaninfo->buf->increment_read_ptr (disk_samples_to_consume);
- int channel = 0;
- for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan, ++channel) {
- ChannelInfo* chaninfo (*chan);
+ if (ms & MonitoringInput) {
+ /* mix the disk signal into the input signal (already in bufs) */
+ mix_buffers_no_gain (output.data(), disk_signal, disk_samples_to_consume);
+ }
+ }
+ }
- playback_distance = interpolation.interpolate (
- channel, nframes, chaninfo->current_buffer, chaninfo->speed_buffer);
+ /* MIDI data handling */
- chaninfo->current_buffer = chaninfo->speed_buffer;
- }
+ midi:
+ if (!_session.declick_out_pending() && bufs.count().n_midi()) {
+ MidiBuffer* dst;
+ if (_no_disk_output) {
+ dst = &scratch_bufs.get_midi(0);
} else {
- playback_distance = nframes;
+ dst = &bufs.get_midi (0);
}
- _speed = _target_speed;
+ if ((ms & MonitoringDisk) && !still_locating) {
+ get_midi_playback (*dst, start_sample, end_sample, ms, scratch_bufs, speed, disk_samples_to_consume);
+ }
}
- if (result_required || _monitoring_choice == MonitorDisk || _monitoring_choice == MonitorCue) {
-
- /* copy data over to buffer set */
+ if (!still_locating) {
- size_t n_buffers = bufs.count().n_audio();
- size_t n_chans = c->size();
- gain_t scaling = 1.0f;
+ bool butler_required = false;
- if (n_chans > n_buffers) {
- scaling = ((float) n_buffers)/n_chans;
+ if (speed < 0.0) {
+ playback_sample -= disk_samples_to_consume;
+ } else {
+ playback_sample += disk_samples_to_consume;
}
- for (n = 0, chan = c->begin(); chan != c->end(); ++chan, ++n) {
-
- AudioBuffer& buf (bufs.get_audio (n%n_buffers));
- ChannelInfo* chaninfo (*chan);
-
- if (n < n_chans) {
- if (scaling != 1.0f) {
- buf.read_from_with_gain (chaninfo->current_buffer, nframes, scaling);
- } else {
- buf.read_from (chaninfo->current_buffer, nframes);
- }
- } else {
- if (scaling != 1.0f) {
- buf.accumulate_with_gain_from (chaninfo->current_buffer, nframes, scaling);
+ if (_playlists[DataType::AUDIO]) {
+ if (!c->empty()) {
+ if (_slaved) {
+ if (c->front()->buf->write_space() >= c->front()->buf->bufsize() / 2) {
+ DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: slaved, write space = %2 of %3\n", name(), c->front()->buf->write_space(),
+ c->front()->buf->bufsize()));
+ butler_required = true;
+ }
} else {
- buf.accumulate_from (chaninfo->current_buffer, nframes);
+ if ((samplecnt_t) c->front()->buf->write_space() >= _chunk_samples) {
+ DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: write space = %2 of %3\n", name(), c->front()->buf->write_space(),
+ _chunk_samples));
+ butler_required = true;
+ }
}
}
}
- /* leave the MIDI count alone */
- ChanCount cnt (DataType::AUDIO, n_chans);
- cnt.set (DataType::MIDI, bufs.count().n_midi());
- bufs.set_count (cnt);
+ if (_playlists[DataType::MIDI]) {
+ /* MIDI butler needed part */
- /* extra buffers will already be silent, so leave them alone */
- }
-
- bool need_butler = false;
+ uint32_t samples_read = g_atomic_int_get(const_cast<gint*>(&_samples_read_from_ringbuffer));
+ uint32_t samples_written = g_atomic_int_get(const_cast<gint*>(&_samples_written_to_ringbuffer));
- if (_actual_speed < 0.0) {
- playback_sample -= playback_distance;
- } else {
- playback_sample += playback_distance;
- }
+ /*
+ cerr << name() << " MDS written: " << samples_written << " - read: " << samples_read <<
+ " = " << samples_written - samples_read
+ << " + " << disk_samples_to_consume << " < " << midi_readahead << " = " << need_butler << ")" << endl;
+ */
- for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
- (*chan)->buf->increment_read_ptr (playback_distance);
- }
+ /* samples_read will generally be less than samples_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.
+ */
+
+ /* furthermore..
+ *
+ * Doing heavy GUI operations[1] can stall also the butler.
+ * The RT-thread meanwhile will happily continue and
+ * ‘samples_read’ (from buffer to output) will become larger
+ * than ‘samples_written’ (from disk to buffer).
+ *
+ * The disk-stream is now behind..
+ *
+ * In those cases the butler needs to be summed to refill the buffer (done now)
+ * AND we need to skip (samples_read - samples_written). ie remove old events
+ * before playback_sample from the rinbuffer.
+ *
+ * [1] one way to do so is described at #6170.
+ * For me just popping up the context-menu on a MIDI-track header
+ * of a track with a large (think beethoven :) midi-region also did the
+ * trick. The playhead stalls for 2 or 3 sec, until the context-menu shows.
+ *
+ * In both cases the root cause is that redrawing MIDI regions on the GUI is still very slow
+ * and can stall
+ */
+ if (samples_read <= samples_written) {
+ if ((samples_written - samples_read) + disk_samples_to_consume < midi_readahead) {
+ butler_required = true;
+ }
+ } else {
+ butler_required = true;
+ }
- if (!c->empty()) {
- if (_slaved) {
- need_butler = c->front()->buf->write_space() >= c->front()->buf->bufsize() / 2;
- } else {
- need_butler = (framecnt_t) c->front()->buf->write_space() >= _chunk_frames;
}
- }
-
- //return need_butler;
-}
-frameoffset_t
-DiskReader::calculate_playback_distance (pframes_t nframes)
-{
- frameoffset_t playback_distance = nframes;
-
- if (_actual_speed != 1.0f && _actual_speed != -1.0f) {
- interpolation.set_speed (_target_speed);
- boost::shared_ptr<ChannelList> c = channels.reader();
- int channel = 0;
- for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan, ++channel) {
- playback_distance = interpolation.interpolate (channel, nframes, NULL, NULL);
- }
- } else {
- playback_distance = nframes;
+ _need_butler = butler_required;
}
- if (_actual_speed < 0.0) {
- return -playback_distance;
- } else {
- return playback_distance;
- }
+ // DEBUG_TRACE (DEBUG::Butler, string_compose ("%1 reader run, needs butler = %2\n", name(), _need_butler));
}
void
_pending_overwrite = yn;
- overwrite_frame = playback_sample;
+ overwrite_sample = playback_sample;
boost::shared_ptr<ChannelList> c = channels.reader ();
if (!c->empty ()) {
int
DiskReader::overwrite_existing_buffers ()
{
- boost::shared_ptr<ChannelList> c = channels.reader();
- if (c->empty ()) {
- _pending_overwrite = false;
- return 0;
- }
-
- Sample* mixdown_buffer;
- float* gain_buffer;
int ret = -1;
- bool reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
+
+ boost::shared_ptr<ChannelList> c = channels.reader();
overwrite_queued = false;
- /* assume all are the same size */
- framecnt_t size = c->front()->buf->bufsize();
+ DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1 overwriting existing buffers at %2\n", overwrite_sample));
- mixdown_buffer = new Sample[size];
- gain_buffer = new float[size];
+ if (!c->empty ()) {
- /* reduce size so that we can fill the buffer correctly (ringbuffers
- can only handle size-1, otherwise they appear to be empty)
- */
- size--;
+ /* AUDIO */
- uint32_t n=0;
- framepos_t start;
+ const bool reversed = _session.transport_speed() < 0.0f;
- for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan, ++n) {
+ /* assume all are the same size */
+ samplecnt_t size = c->front()->buf->bufsize();
- start = overwrite_frame;
- framecnt_t cnt = size;
+ boost::scoped_ptr<Sample> mixdown_buffer (new Sample[size]);
+ boost::scoped_ptr<float> gain_buffer (new float[size]);
- /* to fill the buffer without resetting the playback sample, we need to
- do it one or two chunks (normally two).
+ /* reduce size so that we can fill the buffer correctly (ringbuffers
+ can only handle size-1, otherwise they appear to be empty)
+ */
+ size--;
- |----------------------------------------------------------------------|
+ uint32_t n=0;
+ samplepos_t start;
- ^
- overwrite_offset
- |<- second chunk->||<----------------- first chunk ------------------>|
+ for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan, ++n) {
- */
+ start = overwrite_sample;
+ samplecnt_t cnt = size;
- framecnt_t to_read = size - overwrite_offset;
+ /* to fill the buffer without resetting the playback sample, we need to
+ do it one or two chunks (normally two).
- if (read ((*chan)->buf->buffer() + overwrite_offset, mixdown_buffer, gain_buffer, start, to_read, n, reversed)) {
- error << string_compose(_("DiskReader %1: when refilling, cannot read %2 from playlist at frame %3"),
- id(), size, playback_sample) << endmsg;
- goto out;
- }
+ |----------------------------------------------------------------------|
+
+ ^
+ overwrite_offset
+ |<- second chunk->||<----------------- first chunk ------------------>|
- if (cnt > to_read) {
+ */
- cnt -= to_read;
+ samplecnt_t to_read = size - overwrite_offset;
- if (read ((*chan)->buf->buffer(), mixdown_buffer, gain_buffer, start, cnt, n, reversed)) {
- error << string_compose(_("DiskReader %1: when refilling, cannot read %2 from playlist at frame %3"),
- id(), size, playback_sample) << endmsg;
- goto out;
+ if (audio_read ((*chan)->buf->buffer() + overwrite_offset, mixdown_buffer.get(), gain_buffer.get(), start, to_read, n, reversed)) {
+ error << string_compose(_("DiskReader %1: when refilling, cannot read %2 from playlist at sample %3"),
+ id(), size, playback_sample) << endmsg;
+ goto midi;
+ }
+
+ if (cnt > to_read) {
+
+ cnt -= to_read;
+
+ if (audio_read ((*chan)->buf->buffer(), mixdown_buffer.get(), gain_buffer.get(), start, cnt, n, reversed)) {
+ error << string_compose(_("DiskReader %1: when refilling, cannot read %2 from playlist at sample %3"),
+ id(), size, playback_sample) << endmsg;
+ goto midi;
+ }
}
}
+
+ ret = 0;
+
}
- ret = 0;
+ midi:
- out:
- _pending_overwrite = false;
- delete [] gain_buffer;
- delete [] mixdown_buffer;
- return ret;
-}
+ if (_midi_buf && _playlists[DataType::MIDI]) {
-void
-DiskReader::non_realtime_locate (framepos_t location)
-{
- /* now refill channel buffers */
+ /* Clear the playback buffer contents. This is safe as long as the butler
+ thread is suspended, which it should be.
+ */
+ _midi_buf->reset ();
+ _midi_buf->reset_tracker ();
- if (speed() != 1.0f || speed() != -1.0f) {
- seek ((framepos_t) (location * (double) speed()), true);
- } else {
- seek (location, true);
+ g_atomic_int_set (&_samples_read_from_ringbuffer, 0);
+ g_atomic_int_set (&_samples_written_to_ringbuffer, 0);
+
+ /* Resolve all currently active notes in the playlist. This is more
+ aggressive than it needs to be: ideally we would only resolve what is
+ absolutely necessary, but this seems difficult and/or impossible without
+ having the old data or knowing what change caused the overwrite.
+ */
+ midi_playlist()->resolve_note_trackers (*_midi_buf, overwrite_sample);
+
+ midi_read (overwrite_sample, _chunk_samples, false);
+ file_sample[DataType::MIDI] = overwrite_sample; // overwrite_sample was adjusted by ::midi_read() to the new position
}
+
+ _pending_overwrite = false;
+
+ return ret;
}
int
-DiskReader::seek (framepos_t frame, bool complete_refill)
+DiskReader::seek (samplepos_t sample, bool complete_refill)
{
uint32_t n;
int ret = -1;
ChannelList::iterator chan;
boost::shared_ptr<ChannelList> c = channels.reader();
- Glib::Threads::Mutex::Lock lm (state_lock);
+ //sample = std::max ((samplecnt_t)0, sample -_session.worst_output_latency ());
for (n = 0, chan = c->begin(); chan != c->end(); ++chan, ++n) {
(*chan)->buf->reset ();
}
- playback_sample = frame;
- file_frame = frame;
+ if (g_atomic_int_get (&_samples_read_from_ringbuffer) == 0) {
+ /* we haven't read anything since the last seek,
+ so flush all note trackers to prevent
+ wierdness
+ */
+ reset_tracker ();
+ }
+
+ _midi_buf->reset();
+ g_atomic_int_set(&_samples_read_from_ringbuffer, 0);
+ g_atomic_int_set(&_samples_written_to_ringbuffer, 0);
+
+ playback_sample = sample;
+ file_sample[DataType::AUDIO] = sample;
+ file_sample[DataType::MIDI] = sample;
if (complete_refill) {
/* call _do_refill() to refill the entire buffer, using
ret = do_refill_with_alloc (true);
}
+
return ret;
}
int
-DiskReader::can_internal_playback_seek (framecnt_t distance)
+DiskReader::can_internal_playback_seek (samplecnt_t distance)
{
+ /* 1. Audio */
+
ChannelList::iterator chan;
boost::shared_ptr<ChannelList> c = channels.reader();
return false;
}
}
- return true;
+
+ /* 2. MIDI */
+
+ uint32_t samples_read = g_atomic_int_get(&_samples_read_from_ringbuffer);
+ uint32_t samples_written = g_atomic_int_get(&_samples_written_to_ringbuffer);
+
+ return ((samples_written - samples_read) < distance);
}
int
-DiskReader::internal_playback_seek (framecnt_t distance)
+DiskReader::internal_playback_seek (samplecnt_t distance)
{
ChannelList::iterator chan;
boost::shared_ptr<ChannelList> c = channels.reader();
/** Read some data for 1 channel from our playlist into a buffer.
* @param buf Buffer to write to.
- * @param start Session frame to start reading from; updated to where we end up
+ * @param start Session sample to start reading from; updated to where we end up
* after the read.
* @param cnt Count of samples to read.
* @param reversed true if we are running backwards, otherwise false.
*/
int
-DiskReader::read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer,
- framepos_t& start, framecnt_t cnt,
- int channel, bool reversed)
+DiskReader::audio_read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer,
+ samplepos_t& start, samplecnt_t cnt,
+ int channel, bool reversed)
{
- framecnt_t this_read = 0;
+ samplecnt_t this_read = 0;
bool reloop = false;
- framepos_t loop_end = 0;
- framepos_t loop_start = 0;
- framecnt_t offset = 0;
+ samplepos_t loop_end = 0;
+ samplepos_t loop_start = 0;
+ samplecnt_t offset = 0;
Location *loc = 0;
+ if (!_playlists[DataType::AUDIO]) {
+ memset (buf, 0, sizeof (Sample) * cnt);
+ return 0;
+ }
+
/* XXX we don't currently play loops in reverse. not sure why */
if (!reversed) {
- framecnt_t loop_length = 0;
+ samplecnt_t loop_length = 0;
/* Make the use of a Location atomic for this read operation.
just once.
*/
- if ((loc = loop_location) != 0) {
+ if ((loc = _loop_location) != 0) {
loop_start = loc->start();
loop_end = loc->end();
loop_length = loop_end - loop_start;
}
- /* if we are looping, ensure that the first frame we read is at the correct
+ /* if we are looping, ensure that the first sample we read is at the correct
position within the loop.
*/
this_read = min(cnt,this_read);
if (audio_playlist()->read (buf+offset, mixdown_buffer, gain_buffer, start, this_read, channel) != this_read) {
- error << string_compose(_("DiskReader %1: cannot read %2 from playlist at frame %3"), id(), this_read,
+ error << string_compose(_("DiskReader %1: cannot read %2 from playlist at sample %3"), id(), this_read,
start) << endmsg;
return -1;
}
the smallest sample value .. 4MB = 2M samples (16 bit).
*/
- Sample* mix_buf = new Sample[2*1048576];
- float* gain_buf = new float[2*1048576];
+ {
+ boost::scoped_ptr<Sample> mix_buf (new Sample[2*1048576]);
+ boost::scoped_ptr<float> gain_buf (new float[2*1048576]);
- int ret = _do_refill (mix_buf, gain_buf, (partial_fill ? _chunk_frames : 0));
+ int ret = refill_audio (mix_buf.get(), gain_buf.get(), (partial_fill ? _chunk_samples : 0));
- delete [] mix_buf;
- delete [] gain_buf;
+ if (ret) {
+ return ret;
+ }
+ }
- return ret;
+ return refill_midi ();
}
+int
+DiskReader::refill (Sample* mixdown_buffer, float* gain_buffer, samplecnt_t fill_level)
+{
+ int ret = refill_audio (mixdown_buffer, gain_buffer, fill_level);
+
+ if (ret) {
+ return ret;
+ }
+
+ return refill_midi ();
+}
+
+
/** Get some more data from disk and put it in our channels' bufs,
* if there is suitable space in them.
*
*/
int
-DiskReader::_do_refill (Sample* mixdown_buffer, float* gain_buffer, framecnt_t fill_level)
+DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_t fill_level)
{
- if (_session.state_of_the_state() & Session::Loading) {
+ /* do not read from disk while session is marked as Loading, to avoid
+ useless redundant I/O.
+ */
+
+ if (_session.loading()) {
return 0;
}
int32_t ret = 0;
- framecnt_t to_read;
+ samplecnt_t to_read;
RingBufferNPT<Sample>::rw_vector vector;
- bool const reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
- framecnt_t total_space;
- framecnt_t zero_fill;
+ bool const reversed = _session.transport_speed() < 0.0f;
+ samplecnt_t total_space;
+ samplecnt_t zero_fill;
uint32_t chan_n;
ChannelList::iterator i;
boost::shared_ptr<ChannelList> c = channels.reader();
- framecnt_t ts;
-
- /* do not read from disk while session is marked as Loading, to avoid
- useless redundant I/O.
- */
+ samplecnt_t ts;
if (c->empty()) {
return 0;
c->front()->buf->get_write_vector (&vector);
if ((total_space = vector.len[0] + vector.len[1]) == 0) {
+ DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: no space to refill\n", name()));
/* nowhere to write to */
return 0;
}
}
/* if we're running close to normal speed and there isn't enough
- space to do disk_read_chunk_frames of I/O, then don't bother.
+ space to do disk_read_chunk_samples 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.
- Note: it is a design assumption that disk_read_chunk_frames is smaller
+ Note: it is a design assumption that disk_read_chunk_samples is smaller
than the playback buffer size, so this check should never trip when
the playback buffer is empty.
*/
- if ((total_space < _chunk_frames) && fabs (_actual_speed) < 2.0f) {
+ DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: space to refill %2 vs. chunk %3 (speed = %4)\n", name(), total_space, _chunk_samples, _session.transport_speed()));
+ if ((total_space < _chunk_samples) && fabs (_session.transport_speed()) < 2.0f) {
return 0;
}
work with.
*/
- if (_slaved && total_space < (framecnt_t) (c->front()->buf->bufsize() / 2)) {
+ if (_slaved && total_space < (samplecnt_t) (c->front()->buf->bufsize() / 2)) {
+ DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: not enough to refill while slaved\n", this));
return 0;
}
+ samplepos_t ffa = file_sample[DataType::AUDIO];
+
if (reversed) {
- if (file_frame == 0) {
+ if (ffa == 0) {
/* at start: nothing to do but fill with silence */
return 0;
}
- if (file_frame < total_space) {
+ if (ffa < total_space) {
/* too close to the start: read what we can,
and then zero fill the rest
*/
- zero_fill = total_space - file_frame;
- total_space = file_frame;
+ zero_fill = total_space - ffa;
+ total_space = ffa;
} else {
} else {
- if (file_frame == max_framepos) {
+ if (ffa == max_samplepos) {
/* at end: nothing to do but fill with silence */
return 0;
}
- if (file_frame > max_framepos - total_space) {
+ if (ffa > max_samplepos - total_space) {
/* to close to the end: read what we can, and zero fill the rest */
- zero_fill = total_space - (max_framepos - file_frame);
- total_space = max_framepos - file_frame;
+ zero_fill = total_space - (max_samplepos - ffa);
+ total_space = max_samplepos - ffa;
} else {
zero_fill = 0;
}
}
- framepos_t file_frame_tmp = 0;
+ samplepos_t file_sample_tmp = 0;
/* total_space is in samples. We want to optimize read sizes in various sizes using bytes */
/* now back to samples */
- framecnt_t samples_to_read = byte_size_for_read / (bits_per_sample / 8);
+ samplecnt_t samples_to_read = byte_size_for_read / (bits_per_sample / 8);
- //cerr << name() << " will read " << byte_size_for_read << " out of total bytes " << total_bytes << " in buffer of "
- // << c->front()->buf->bufsize() * bits_per_sample / 8 << " bps = " << bits_per_sample << endl;
- // cerr << name () << " read samples = " << samples_to_read << " out of total space " << total_space << " in buffer of " << c->front()->buf->bufsize() << " samples\n";
+ DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: will refill %2 channels with %3 samples\n", name(), c->size(), total_space));
// uint64_t before = g_get_monotonic_time ();
// uint64_t elapsed;
ChannelInfo* chan (*i);
Sample* buf1;
Sample* buf2;
- framecnt_t len1, len2;
+ samplecnt_t len1, len2;
chan->buf->get_write_vector (&vector);
- if ((framecnt_t) vector.len[0] > samples_to_read) {
+ if ((samplecnt_t) vector.len[0] > samples_to_read) {
/* we're not going to fill the first chunk, so certainly do not bother with the
other part. it won't be connected with the part we do fill, as in:
.... => writable space
++++ => readable space
- ^^^^ => 1 x disk_read_chunk_frames that would be filled
+ ^^^^ => 1 x disk_read_chunk_samples that would be filled
|......|+++++++++++++|...............................|
buf1 buf0
}
ts = total_space;
- file_frame_tmp = file_frame;
+ file_sample_tmp = ffa;
buf1 = vector.buf[0];
len1 = vector.len[0];
len2 = vector.len[1];
to_read = min (ts, len1);
- to_read = min (to_read, (framecnt_t) samples_to_read);
+ to_read = min (to_read, (samplecnt_t) samples_to_read);
assert (to_read >= 0);
if (to_read) {
- if (read (buf1, mixdown_buffer, gain_buffer, file_frame_tmp, to_read, chan_n, reversed)) {
+ if (audio_read (buf1, mixdown_buffer, gain_buffer, file_sample_tmp, to_read, chan_n, reversed)) {
ret = -1;
goto out;
}
-
chan->buf->increment_write_ptr (to_read);
ts -= to_read;
}
all of vector.len[1] as well.
*/
- if (read (buf2, mixdown_buffer, gain_buffer, file_frame_tmp, to_read, chan_n, reversed)) {
+ if (audio_read (buf2, mixdown_buffer, gain_buffer, file_sample_tmp, to_read, chan_n, reversed)) {
ret = -1;
goto out;
}
}
// elapsed = g_get_monotonic_time () - before;
- // cerr << "\tbandwidth = " << (byte_size_for_read / 1048576.0) / (elapsed/1000000.0) << "MB/sec\n";
+ // cerr << '\t' << name() << ": bandwidth = " << (byte_size_for_read / 1048576.0) / (elapsed/1000000.0) << "MB/sec\n";
- file_frame = file_frame_tmp;
- assert (file_frame >= 0);
+ file_sample[DataType::AUDIO] = file_sample_tmp;
+ assert (file_sample[DataType::AUDIO] >= 0);
- ret = ((total_space - samples_to_read) > _chunk_frames);
+ ret = ((total_space - samples_to_read) > _chunk_samples);
c->front()->buf->get_write_vector (&vector);
}
void
-DiskReader::playlist_ranges_moved (list< Evoral::RangeMove<framepos_t> > const & movements_frames, bool from_undo)
+DiskReader::playlist_ranges_moved (list< Evoral::RangeMove<samplepos_t> > const & movements_samples, bool from_undo)
{
/* If we're coming from an undo, it will have handled
automation undo (it must, since automation-follows-regions
return;
}
-#if 0
- if (!_track || Config->get_automation_follows_regions () == false) {
+ if (!_route || Config->get_automation_follows_regions () == false) {
return;
}
list< Evoral::RangeMove<double> > movements;
- for (list< Evoral::RangeMove<framepos_t> >::const_iterator i = movements_frames.begin();
- i != movements_frames.end();
+ for (list< Evoral::RangeMove<samplepos_t> >::const_iterator i = movements_samples.begin();
+ i != movements_samples.end();
++i) {
movements.push_back(Evoral::RangeMove<double>(i->from, i->length, i->to));
}
/* move panner automation */
- boost::shared_ptr<Pannable> pannable = _track->pannable();
+ boost::shared_ptr<Pannable> pannable = _route->pannable();
Evoral::ControlSet::Controls& c (pannable->controls());
for (Evoral::ControlSet::Controls::iterator ci = c.begin(); ci != c.end(); ++ci) {
}
}
/* move processor automation */
- _track->foreach_processor (boost::bind (&Diskstream::move_processor_automation, this, _1, movements_frames));
-#endif
+ _route->foreach_processor (boost::bind (&DiskReader::move_processor_automation, this, _1, movements_samples));
}
void
-DiskReader::move_processor_automation (boost::weak_ptr<Processor> p, list< Evoral::RangeMove<framepos_t> > const & movements_frames)
+DiskReader::move_processor_automation (boost::weak_ptr<Processor> p, list< Evoral::RangeMove<samplepos_t> > const & movements_samples)
{
boost::shared_ptr<Processor> processor (p.lock ());
if (!processor) {
}
list< Evoral::RangeMove<double> > movements;
- for (list< Evoral::RangeMove<framepos_t> >::const_iterator i = movements_frames.begin(); i != movements_frames.end(); ++i) {
+ for (list< Evoral::RangeMove<samplepos_t> >::const_iterator i = movements_samples.begin(); i != movements_samples.end(); ++i) {
movements.push_back(Evoral::RangeMove<double>(i->from, i->length, i->to));
}
}
}
+void
+DiskReader::reset_tracker ()
+{
+ _midi_buf->reset_tracker ();
+
+ boost::shared_ptr<MidiPlaylist> mp (midi_playlist());
+
+ if (mp) {
+ mp->reset_note_trackers ();
+ }
+}
+
+void
+DiskReader::resolve_tracker (Evoral::EventSink<samplepos_t>& buffer, samplepos_t time)
+{
+ _midi_buf->resolve_tracker(buffer, time);
+
+ boost::shared_ptr<MidiPlaylist> mp (midi_playlist());
+
+ if (mp) {
+ mp->reset_note_trackers ();
+ }
+}
+
+/** Writes playback events from playback_sample for nframes to dst, translating time stamps
+ * so that an event at playback_sample has time = 0
+ */
+void
+DiskReader::get_midi_playback (MidiBuffer& dst, samplepos_t start_sample, samplepos_t end_sample, MonitorState ms, BufferSet& scratch_bufs, double speed, samplecnt_t disk_samples_to_consume)
+{
+ MidiBuffer* target;
+ samplepos_t nframes = end_sample - start_sample;
+
+ if ((ms & MonitoringInput) == 0) {
+ /* Route::process_output_buffers() clears the buffer as-needed */
+ target = &dst;
+ } else {
+ target = &scratch_bufs.get_midi (0);
+ }
+
+ if (ms & MonitoringDisk) {
+ /* disk data needed */
+
+ Location* loc = _loop_location;
+
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose (
+ "%1 MDS pre-read read %8 offset = %9 @ %4..%5 from %2 write to %3, LOOPED ? %6 .. %7\n", _name,
+ _midi_buf->get_read_ptr(), _midi_buf->get_write_ptr(), start_sample, end_sample,
+ (loc ? loc->start() : -1), (loc ? loc->end() : -1), nframes, Port::port_offset()));
+
+ //cerr << "======== PRE ========\n";
+ //_midi_buf->dump (cerr);
+ //cerr << "----------------\n";
+
+ size_t events_read = 0;
+
+ if (loc) {
+ samplepos_t effective_start;
+
+ Evoral::Range<samplepos_t> loop_range (loc->start(), loc->end() - 1);
+ effective_start = loop_range.squish (start_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.
+ */
+
+ _midi_buf->resolve_tracker (*target, 0);
+ }
+
+ /* for split-cycles we need to offset the events */
+
+ 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
+ */
+
+ samplecnt_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, cycle offset %5\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 = _midi_buf->read (*target, effective_start, first);
+ }
+
+ if (second) {
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("loop read #2, from %1 for %2\n",
+ loc->start(), second));
+ events_read += _midi_buf->read (*target, 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 = _midi_buf->read (*target, effective_start, effective_start + nframes);
+ }
+ } else {
+ const size_t n_skipped = _midi_buf->skip_to (start_sample);
+ if (n_skipped > 0) {
+ warning << string_compose(_("MidiDiskstream %1: skipped %2 events, possible underflow"), id(), n_skipped) << endmsg;
+ }
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("playback buffer read, from %1 to %2 (%3)", start_sample, end_sample, nframes));
+ events_read = _midi_buf->read (*target, start_sample, end_sample, Port::port_offset ());
+ }
+
+ 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,
+ _midi_buf->read_space(), _midi_buf->write_space(),
+ _midi_buf->get_read_ptr(), _midi_buf->get_write_ptr()));
+ }
+
+ g_atomic_int_add (&_samples_read_from_ringbuffer, nframes);
+
+ /* vari-speed */
+ if (speed != 0.0 && fabsf (speed) != 1.0f) {
+ for (MidiBuffer::iterator i = target->begin(); i != target->end(); ++i) {
+ MidiBuffer::TimeType *tme = i.timeptr();
+ // XXX need to subtract port offsets before scaling
+ // also we must only scale events read from disk
+ // and not existing input data in the buffer.
+ *tme = (*tme) * nframes / disk_samples_to_consume;
+ }
+ }
+
+ if (ms & MonitoringInput) {
+ dst.merge_from (*target, nframes);
+ }
+
+#if 0
+ if (!target->empty ()) {
+ cerr << "======== MIDI OUT ========\n";
+ for (MidiBuffer::iterator i = target->begin(); i != target->end(); ++i) {
+ const Evoral::Event<MidiBuffer::TimeType> ev (*i, false);
+ cerr << "MIDI EVENT (from disk) @ " << ev.time();
+ for (size_t xx = 0; xx < ev.size(); ++xx) {
+ cerr << ' ' << hex << (int) ev.buffer()[xx];
+ }
+ cerr << dec << endl;
+ }
+ cerr << "----------------\n";
+ }
+#endif
+#if 0
+ cerr << "======== MIDI Disk Buffer ========\n";
+ _midi_buf->dump (cerr);
+ cerr << "----------------\n";
+#endif
+}
+
+/** @a start is set to the new sample position (TIME) read up to */
+int
+DiskReader::midi_read (samplepos_t& start, samplecnt_t dur, bool reversed)
+{
+ samplecnt_t this_read = 0;
+ samplepos_t loop_end = 0;
+ samplepos_t loop_start = 0;
+ samplecnt_t loop_length = 0;
+ Location* loc = _loop_location;
+ samplepos_t effective_start = start;
+ Evoral::Range<samplepos_t>* loop_range (0);
+
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("MDS::midi_read @ %1 cnt %2\n", start, dur));
+
+ boost::shared_ptr<MidiTrack> mt = boost::dynamic_pointer_cast<MidiTrack>(_route);
+ MidiChannelFilter* filter = mt ? &mt->playback_filter() : 0;
+ sampleoffset_t loop_offset = 0;
+
+ if (!reversed && loc) {
+ get_location_times (loc, &loop_start, &loop_end, &loop_length);
+ }
+
+ while (dur) {
+
+ /* take any loop into account. we can't read past the end of the loop. */
+
+ if (loc && !reversed) {
+
+ if (!loop_range) {
+ loop_range = new Evoral::Range<samplepos_t> (loop_start, loop_end-1); // inclusive semantics require -1
+ }
+
+ /* if we are (seamlessly) looping, ensure that the first sample we read is at the correct
+ position within the loop.
+ */
+
+ effective_start = loop_range->squish (effective_start);
+
+ if ((loop_end - effective_start) <= dur) {
+ /* too close to end of loop to read "dur", so
+ shorten it.
+ */
+ this_read = loop_end - effective_start;
+ } else {
+ this_read = dur;
+ }
+
+ } else {
+ this_read = dur;
+ }
+
+ if (this_read == 0) {
+ break;
+ }
+
+ this_read = min (dur,this_read);
+
+ DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("MDS ::read at %1 for %2 loffset %3\n", effective_start, this_read, loop_offset));
+
+ if (midi_playlist()->read (*_midi_buf, effective_start, this_read, loop_range, 0, filter) != this_read) {
+ error << string_compose(
+ _("MidiDiskstream %1: cannot read %2 from playlist at sample %3"),
+ id(), this_read, start) << endmsg;
+ return -1;
+ }
+
+ g_atomic_int_add (&_samples_written_to_ringbuffer, this_read);
+
+ if (reversed) {
+
+ // Swap note ons with note offs here. etc?
+ // Fully reversing MIDI requires look-ahead (well, behind) to find previous
+ // CC values etc. hard.
+
+ } else {
+
+ /* adjust passed-by-reference argument (note: this is
+ monotonic and does not reflect looping.
+ */
+ start += this_read;
+
+ /* similarly adjust effective_start, but this may be
+ readjusted for seamless looping as we continue around
+ the loop.
+ */
+ effective_start += this_read;
+ }
+
+ dur -= this_read;
+ }
+
+ return 0;
+}
+
+int
+DiskReader::refill_midi ()
+{
+ if (!_playlists[DataType::MIDI]) {
+ return 0;
+ }
+
+ const size_t write_space = _midi_buf->write_space();
+ const bool reversed = _session.transport_speed() < 0.0f;
+
+ DEBUG_TRACE (DEBUG::DiskIO, string_compose ("MIDI refill, write space = %1 file sample = %2\n", write_space, file_sample[DataType::MIDI]));
+
+ /* no space to write */
+ if (write_space == 0) {
+ return 0;
+ }
+
+ if (reversed) {
+ return 0;
+ }
+
+ /* at end: nothing to do */
+
+ samplepos_t ffm = file_sample[DataType::MIDI];
+
+ if (ffm == max_samplepos) {
+ return 0;
+ }
+
+ int ret = 0;
+ const uint32_t samples_read = g_atomic_int_get (&_samples_read_from_ringbuffer);
+ const uint32_t samples_written = g_atomic_int_get (&_samples_written_to_ringbuffer);
+
+ if ((samples_read < samples_written) && (samples_written - samples_read) >= midi_readahead) {
+ return 0;
+ }
+
+ samplecnt_t to_read = midi_readahead - ((samplecnt_t)samples_written - (samplecnt_t)samples_read);
+
+ to_read = min (to_read, (samplecnt_t) (max_samplepos - ffm));
+ to_read = min (to_read, (samplecnt_t) write_space);
+
+ if (midi_read (ffm, to_read, reversed)) {
+ ret = -1;
+ }
+
+ file_sample[DataType::MIDI] = ffm;
+
+ return ret;
+}
+
+void
+DiskReader::set_no_disk_output (bool yn)
+{
+ /* this MUST be called as part of the process call tree, before any
+ disk readers are invoked. We use it when the session needs the
+ transport (and thus effective read position for DiskReaders) to keep
+ advancing as part of syncing up with a transport master, but we
+ don't want any actual disk output yet because we are still not
+ synced.
+ */
+ _no_disk_output = yn;
+}
projects / ardour.git / blobdiff