X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_playlist.cc;h=67764d66aeefa5880d5c1a6f6ccd6c7336ba1925;hb=b25cd7683b25a502094a2ecefbadb4b7d6e6db09;hp=49b5ff2c4f6f8282fd967301456586dfe20bc478;hpb=33da74c8e353ac56194956cae8e2b7d74ec1a1b0;p=ardour.git

diff --git a/libs/ardour/midi_playlist.cc b/libs/ardour/midi_playlist.cc
index 49b5ff2c4f..67764d66ae 100644
--- a/libs/ardour/midi_playlist.cc
+++ b/libs/ardour/midi_playlist.cc
@@ -1,6 +1,6 @@
 /*
     Copyright (C) 2006 Paul Davis
-    Written by Dave Robillard, 2006
+    Author: David Robillard
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,204 +17,290 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-#include <cassert>
-
 #include <algorithm>
+#include <cassert>
+#include <cstdlib>
+#include <iostream>
+#include <utility>
 
-#include <stdlib.h>
-
-#include <sigc++/bind.h>
+#include "evoral/EventList.hpp"
+#include "evoral/Control.hpp"
 
-#include "ardour/types.h"
-#include "ardour/configuration.h"
+#include "ardour/beats_frames_converter.h"
+#include "ardour/debug.h"
+#include "ardour/midi_model.h"
 #include "ardour/midi_playlist.h"
 #include "ardour/midi_region.h"
+#include "ardour/midi_source.h"
+#include "ardour/midi_state_tracker.h"
 #include "ardour/session.h"
-#include "ardour/midi_ring_buffer.h"
-
-#include "pbd/error.h"
+#include "ardour/types.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace ARDOUR;
-using namespace sigc;
+using namespace PBD;
 using namespace std;
 
 MidiPlaylist::MidiPlaylist (Session& session, const XMLNode& node, bool hidden)
-		: Playlist (session, node, DataType::MIDI, hidden)
-		, _note_mode(Sustained)
+	: Playlist (session, node, DataType::MIDI, hidden)
+	, _note_mode(Sustained)
+	, _read_end(0)
 {
-	const XMLProperty* prop = node.property("type");
+#ifndef NDEBUG
+	XMLProperty const * prop = node.property("type");
 	assert(prop && DataType(prop->value()) == DataType::MIDI);
+#endif
 
 	in_set_state++;
-	set_state (node, Stateful::loading_state_version);
+	if (set_state (node, Stateful::loading_state_version)) {
+		throw failed_constructor ();
+	}
 	in_set_state--;
+
+	relayer ();
 }
 
 MidiPlaylist::MidiPlaylist (Session& session, string name, bool hidden)
-		: Playlist (session, name, DataType::MIDI, hidden)
+	: Playlist (session, name, DataType::MIDI, hidden)
+	, _note_mode(Sustained)
+	, _read_end(0)
 {
 }
 
 MidiPlaylist::MidiPlaylist (boost::shared_ptr<const MidiPlaylist> other, string name, bool hidden)
-		: Playlist (other, name, hidden)
+	: Playlist (other, name, hidden)
+	, _note_mode(other->_note_mode)
+	, _read_end(0)
 {
-	throw; // nope
-
-	/*
-	list<Region*>::const_iterator in_o  = other.regions.begin();
-	list<Region*>::iterator in_n = regions.begin();
-
-	while (in_o != other.regions.end()) {
-		MidiRegion *ar = dynamic_cast<MidiRegion *>( (*in_o) );
-
-		for (list<Crossfade *>::const_iterator xfades = other._crossfades.begin(); xfades != other._crossfades.end(); ++xfades) {
-			if ( &(*xfades)->in() == ar) {
-				// We found one! Now copy it!
-
-				list<Region*>::const_iterator out_o = other.regions.begin();
-				list<Region*>::const_iterator out_n = regions.begin();
-
-				while (out_o != other.regions.end()) {
-
-					MidiRegion *ar2 = dynamic_cast<MidiRegion *>( (*out_o) );
-
-					if ( &(*xfades)->out() == ar2) {
-						MidiRegion *in  = dynamic_cast<MidiRegion*>( (*in_n) );
-						MidiRegion *out = dynamic_cast<MidiRegion*>( (*out_n) );
-						Crossfade *new_fade = new Crossfade( *(*xfades), in, out);
-						add_crossfade(*new_fade);
-						break;
-					}
-
-					out_o++;
-					out_n++;
-				}
-				// cerr << "HUH!? second region in the crossfade not found!" << endl;
-			}
-		}
-
-		in_o++;
-		in_n++;
-	}
-*/
 }
 
-MidiPlaylist::MidiPlaylist (boost::shared_ptr<const MidiPlaylist> other, nframes_t start, nframes_t dur, string name, bool hidden)
-		: Playlist (other, start, dur, name, hidden)
+MidiPlaylist::MidiPlaylist (boost::shared_ptr<const MidiPlaylist> other,
+                            framepos_t                            start,
+                            framecnt_t                            dur,
+                            string                                name,
+                            bool                                  hidden)
+	: Playlist (other, start, dur, name, hidden)
+	, _note_mode(other->_note_mode)
+	, _read_end(0)
 {
-	/* this constructor does NOT notify others (session) */
 }
 
 MidiPlaylist::~MidiPlaylist ()
 {
-	GoingAway (); /* EMIT SIGNAL */
-
-	/* drop connections to signals */
-
-	notify_callbacks ();
 }
 
-struct RegionSortByLayer {
-    bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
-	    return a->layer() < b->layer();
+template<typename Time>
+struct EventsSortByTimeAndType {
+    bool operator() (const Evoral::Event<Time>* a, const Evoral::Event<Time>* b) {
+	    if (a->time() == b->time()) {
+		    if (parameter_is_midi ((AutomationType)a->event_type()) &&
+		        parameter_is_midi ((AutomationType)b->event_type())) {
+			    /* negate return value since we must return whether
+			     * or not a should sort before b, not b before a
+			     */
+			    return !MidiBuffer::second_simultaneous_midi_byte_is_first (a->buffer()[0], b->buffer()[0]);
+		    }
+	    }
+	    return a->time() < b->time();
     }
 };
 
-/** Returns the number of frames in time duration read (eg could be large when 0 events are read) */
-nframes_t
-MidiPlaylist::read (MidiRingBuffer<nframes_t>& dst, nframes_t start, nframes_t dur, unsigned chan_n)
+framecnt_t
+MidiPlaylist::read (Evoral::EventSink<framepos_t>& dst,
+                    framepos_t                     start,
+                    framecnt_t                     dur,
+                    Evoral::Range<framepos_t>*     loop_range,
+                    unsigned                       chan_n,
+                    MidiChannelFilter*             filter)
 {
-	/* this function is never called from a realtime thread, so
-	   its OK to block (for short intervals).
-	*/
-
-	Glib::RecMutex::Lock rm (region_lock);
+	typedef pair<MidiStateTracker*,framepos_t> TrackerInfo;
 
-	nframes_t end = start + dur - 1;
+	Playlist::RegionReadLock rl (this);
 
-	_read_data_count = 0;
+	DEBUG_TRACE (DEBUG::MidiPlaylistIO,
+	             string_compose ("---- MidiPlaylist::read %1 .. %2 (%3 trackers) ----\n",
+	                             start, start + dur, _note_trackers.size()));
 
-	// relevent regions overlapping start <--> end
-	vector< boost::shared_ptr<Region> > regs;
+	/* First, emit any queued edit fixup events at start. */
+	for (NoteTrackers::iterator t = _note_trackers.begin(); t != _note_trackers.end(); ++t) {
+		t->second->fixer.emit(dst, _read_end, t->second->tracker);
+	}
 
+	/* Find relevant regions that overlap [start..end] */
+	const framepos_t                         end = start + dur - 1;
+	std::vector< boost::shared_ptr<Region> > regs;
+	std::vector< boost::shared_ptr<Region> > ended;
 	for (RegionList::iterator i = regions.begin(); i != regions.end(); ++i) {
-		if ((*i)->coverage (start, end) != OverlapNone) {
-			regs.push_back(*i);
-		} else {
-			/* region does not cover the current read boundaries, so make
-			   sure that we silence any notes that it had turned on
-			*/
-			NoteTrackers::iterator t = _note_trackers.find ((*i).get());
-			if (t != _note_trackers.end()) {
-				t->second->resolve_notes (dst, (*i)->last_frame());
-				delete t->second;
-				_note_trackers.erase (t);
-			}
+		switch ((*i)->coverage (start, end)) {
+		case Evoral::OverlapStart:
+		case Evoral::OverlapInternal:
+			regs.push_back (*i);
+			break;
+
+		case Evoral::OverlapExternal:
+			/* this region is entirely contained in the read range */
+			regs.push_back (*i);
+			ended.push_back (*i);
+			break;
+
+		case Evoral::OverlapEnd:
+			/* this region ends within the read range */
+			regs.push_back (*i);
+			ended.push_back (*i);
+			break;
+
+		default:
+			/* we don't care */
+			break;
 		}
 	}
 
-	RegionSortByLayer layer_cmp;
-	sort(regs.begin(), regs.end(), layer_cmp);
+	/* If we are reading from a single region, we can read directly into dst.  Otherwise,
+	   we read into a temporarily list, sort it, then write that to dst. */
+	const bool direct_read = regs.size() == 1 &&
+		(ended.empty() || (ended.size() == 1 && ended.front() == regs.front()));
+
+	Evoral::EventList<framepos_t>  evlist;
+	Evoral::EventSink<framepos_t>& tgt = direct_read ? dst : evlist;
+
+	DEBUG_TRACE (DEBUG::MidiPlaylistIO,
+	             string_compose ("\t%1 regions to read, direct: %2\n", regs.size(), direct_read));
 
 	for (vector<boost::shared_ptr<Region> >::iterator i = regs.begin(); i != regs.end(); ++i) {
 		boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(*i);
-		if (mr) {
-
-			NoteTrackers::iterator t = _note_trackers.find ((*i).get());
-			MidiStateTracker* tracker;
-
-			if (t == _note_trackers.end()) {
-				pair<Region*,MidiStateTracker*> newpair;
-				newpair.first = (*i).get();
-				tracker = newpair.second = new MidiStateTracker;
-				_note_trackers.insert (newpair);
-			} else {
-				tracker = t->second;
+		if (!mr) {
+			continue;
+		}
+
+		/* Get the existing note tracker for this region, or create a new one. */
+		NoteTrackers::iterator           t           = _note_trackers.find (mr.get());
+		bool                             new_tracker = false;
+		boost::shared_ptr<RegionTracker> tracker;
+		if (t == _note_trackers.end()) {
+			tracker     = boost::shared_ptr<RegionTracker>(new RegionTracker);
+			new_tracker = true;
+			DEBUG_TRACE (DEBUG::MidiPlaylistIO,
+			             string_compose ("\tPre-read %1 (%2 .. %3): new tracker\n",
+			                             mr->name(), mr->position(), mr->last_frame()));
+		} else {
+			tracker = t->second;
+			DEBUG_TRACE (DEBUG::MidiPlaylistIO,
+			             string_compose ("\tPre-read %1 (%2 .. %3): %4 active notes\n",
+			                             mr->name(), mr->position(), mr->last_frame(), tracker->tracker.on()));
+		}
+
+		/* Read from region into target. */
+		DEBUG_TRACE (DEBUG::MidiPlaylistIO, string_compose ("read from %1 at %2 for %3 LR %4 .. %5\n",
+		                                                    mr->name(), start, dur, 
+		                                                    (loop_range ? loop_range->from : -1),
+		                                                    (loop_range ? loop_range->to : -1)));
+		mr->read_at (tgt, start, dur, loop_range, tracker->cursor, chan_n, _note_mode, &tracker->tracker, filter);
+		DEBUG_TRACE (DEBUG::MidiPlaylistIO,
+		             string_compose ("\tPost-read: %1 active notes\n", tracker->tracker.on()));
+
+		if (find (ended.begin(), ended.end(), *i) != ended.end()) {
+			/* Region ended within the read range, so resolve any active notes
+			   (either stuck notes in the data, or notes that end after the end
+			   of the region). */
+			DEBUG_TRACE (DEBUG::MidiPlaylistIO,
+			             string_compose ("\t%1 ended, resolve notes and delete (%2) tracker\n",
+			                             mr->name(), ((new_tracker) ? "new" : "old")));
+
+			tracker->tracker.resolve_notes (tgt, loop_range ? loop_range->squish ((*i)->last_frame()) : (*i)->last_frame());
+			tracker->cursor.invalidate (false);
+			if (!new_tracker) {
+				_note_trackers.erase (t);
 			}
 
-			mr->read_at (dst, start, dur, chan_n, _note_mode, tracker);
-			_read_data_count += mr->read_data_count();
+		} else {
+
+			if (new_tracker) {
+				_note_trackers.insert (make_pair (mr.get(), tracker));
+				DEBUG_TRACE (DEBUG::MidiPlaylistIO, "\tadded tracker to trackers\n");
+			}
 		}
 	}
 
+	if (!direct_read && !evlist.empty()) {
+		/* We've read from multiple regions, sort the event list by time. */
+		EventsSortByTimeAndType<framepos_t> cmp;
+		evlist.sort (cmp);
+
+		/* Copy ordered events from event list to dst. */
+		for (Evoral::EventList<framepos_t>::iterator e = evlist.begin(); e != evlist.end(); ++e) {
+			Evoral::Event<framepos_t>* ev (*e);
+			dst.write (ev->time(), ev->event_type(), ev->size(), ev->buffer());
+			delete ev;
+		}
+	}
+
+	DEBUG_TRACE (DEBUG::MidiPlaylistIO, "---- End MidiPlaylist::read ----\n");
+	_read_end = start + dur;
 	return dur;
 }
 
 void
-MidiPlaylist::remove_dependents (boost::shared_ptr<Region> region)
+MidiPlaylist::region_edited(boost::shared_ptr<Region>         region,
+                            const MidiModel::NoteDiffCommand* cmd)
 {
-	/* MIDI regions have no dependents (crossfades) but we might be tracking notes */
-	NoteTrackers::iterator t = _note_trackers.find (region.get());
+	typedef MidiModel::NoteDiffCommand Command;
 
-	/* GACK! THREAD SAFETY! */
+	boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
+	if (!mr || !_session.transport_rolling()) {
+		return;
+	}
+
+	/* Take write lock to prevent concurrency with read(). */
+	Playlist::RegionWriteLock lock(this);
 
-	if (t != _note_trackers.end()) {
-		delete t->second;
-		_note_trackers.erase (t);
+	NoteTrackers::iterator t = _note_trackers.find(mr.get());
+	if (t == _note_trackers.end()) {
+		return; /* Region is not currently active, nothing to do. */
 	}
-}
 
+	/* Queue any necessary edit compensation events. */
+	t->second->fixer.prepare(
+		_session.tempo_map(), cmd, mr->position() - mr->start(),
+		_read_end, t->second->cursor.active_notes);
+}
 
 void
-MidiPlaylist::refresh_dependents (boost::shared_ptr<Region> /*r*/)
+MidiPlaylist::reset_note_trackers ()
 {
-	/* MIDI regions have no dependents (crossfades) */
+	Playlist::RegionWriteLock rl (this, false);
+
+	DEBUG_TRACE (DEBUG::MidiTrackers, string_compose ("%1 reset all note trackers\n", name()));
+	_note_trackers.clear ();
 }
 
 void
-MidiPlaylist::finalize_split_region (boost::shared_ptr<Region> /*original*/, boost::shared_ptr<Region> /*left*/, boost::shared_ptr<Region> /*right*/)
+MidiPlaylist::resolve_note_trackers (Evoral::EventSink<framepos_t>& dst, framepos_t time)
 {
-	/* No MIDI crossfading (yet?), so nothing to do here */
+	Playlist::RegionWriteLock rl (this, false);
+
+	for (NoteTrackers::iterator n = _note_trackers.begin(); n != _note_trackers.end(); ++n) {
+		n->second->tracker.resolve_notes(dst, time);
+	}
+	DEBUG_TRACE (DEBUG::MidiTrackers, string_compose ("%1 resolve all note trackers\n", name()));
+	_note_trackers.clear ();
 }
 
 void
-MidiPlaylist::check_dependents (boost::shared_ptr<Region> /*r*/, bool /*norefresh*/)
+MidiPlaylist::remove_dependents (boost::shared_ptr<Region> region)
 {
-	/* MIDI regions have no dependents (crossfades) */
+	/* MIDI regions have no dependents (crossfades) but we might be tracking notes */
+	_note_trackers.erase(region.get());
 }
 
+void
+MidiPlaylist::region_going_away (boost::weak_ptr<Region> region)
+{
+	boost::shared_ptr<Region> r = region.lock();
+	if (r) {
+		remove_dependents(r);
+	}
+}
 
 int
 MidiPlaylist::set_state (const XMLNode& node, int version)
@@ -222,7 +308,9 @@ MidiPlaylist::set_state (const XMLNode& node, int version)
 	in_set_state++;
 	freeze ();
 
-	Playlist::set_state (node, version);
+	if (Playlist::set_state (node, version)) {
+		return -1;
+	}
 
 	thaw();
 	in_set_state--;
@@ -255,17 +343,15 @@ bool
 MidiPlaylist::destroy_region (boost::shared_ptr<Region> region)
 {
 	boost::shared_ptr<MidiRegion> r = boost::dynamic_pointer_cast<MidiRegion> (region);
-	bool changed = false;
 
-	if (r == 0) {
-		PBD::fatal << _("programming error: non-midi Region passed to remove_overlap in midi playlist")
-		<< endmsg;
-		/*NOTREACHED*/
+	if (!r) {
 		return false;
 	}
 
+	bool changed = false;
+
 	{
-		RegionLock rlock (this);
+		RegionWriteLock rlock (this);
 		RegionList::iterator i;
 		RegionList::iterator tmp;
 
@@ -281,8 +367,12 @@ MidiPlaylist::destroy_region (boost::shared_ptr<Region> region)
 
 			i = tmp;
 		}
-	}
 
+		NoteTrackers::iterator t = _note_trackers.find(region.get());
+		if (t != _note_trackers.end()) {
+			_note_trackers.erase(t);
+		}
+	}
 
 	if (changed) {
 		/* overload this, it normally means "removed", not destroyed */
@@ -299,8 +389,7 @@ MidiPlaylist::contained_automation()
 	   its OK to block (for short intervals).
 	*/
 
-	Glib::RecMutex::Lock rm (region_lock);
-
+	Playlist::RegionReadLock rl (this);
 	set<Evoral::Parameter> ret;
 
 	for (RegionList::const_iterator r = regions.begin(); r != regions.end(); ++r) {
@@ -308,38 +397,11 @@ MidiPlaylist::contained_automation()
 
 		for (Automatable::Controls::iterator c = mr->model()->controls().begin();
 				c != mr->model()->controls().end(); ++c) {
-			ret.insert(c->first);
+			if (c->second->list()->size() > 0) {
+				ret.insert(c->first);
+			}
 		}
 	}
 
 	return ret;
 }
-
-
-bool
-MidiPlaylist::region_changed (Change what_changed, boost::shared_ptr<Region> region)
-{
-	if (in_flush || in_set_state) {
-		return false;
-	}
-
-	// Feeling rather uninterested today, but thanks for the heads up anyway!
-
-	Change our_interests = Change (/*MidiRegion::FadeInChanged|
-	                               MidiRegion::FadeOutChanged|
-	                               MidiRegion::FadeInActiveChanged|
-	                               MidiRegion::FadeOutActiveChanged|
-	                               MidiRegion::EnvelopeActiveChanged|
-	                               MidiRegion::ScaleAmplitudeChanged|
-	                               MidiRegion::EnvelopeChanged*/);
-	bool parent_wants_notify;
-
-	parent_wants_notify = Playlist::region_changed (what_changed, region);
-
-	if ((parent_wants_notify || (what_changed & our_interests))) {
-		notify_modified ();
-	}
-
-	return true;
-}
-