2 Copyright (C) 2006 Paul Davis
3 Written by Dave Robillard, 2006
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <sigc++/bind.h>
28 #include <ardour/types.h>
29 #include <ardour/configuration.h>
30 #include <ardour/midi_playlist.h>
31 #include <ardour/midi_region.h>
32 #include <ardour/session.h>
33 #include <ardour/midi_ring_buffer.h>
35 #include <pbd/error.h>
39 using namespace ARDOUR;
43 MidiPlaylist::MidiPlaylist (Session& session, const XMLNode& node, bool hidden)
44 : Playlist (session, node, DataType::MIDI, hidden)
46 const XMLProperty* prop = node.property("type");
47 assert(prop && DataType(prop->value()) == DataType::MIDI);
54 PlaylistCreated (this); /* EMIT SIGNAL */
58 MidiPlaylist::MidiPlaylist (Session& session, string name, bool hidden)
59 : Playlist (session, name, DataType::MIDI, hidden)
62 PlaylistCreated (this); /* EMIT SIGNAL */
67 MidiPlaylist::MidiPlaylist (const MidiPlaylist& other, string name, bool hidden)
68 : Playlist (other, name, hidden)
73 list<Region*>::const_iterator in_o = other.regions.begin();
74 list<Region*>::iterator in_n = regions.begin();
76 while (in_o != other.regions.end()) {
77 MidiRegion *ar = dynamic_cast<MidiRegion *>( (*in_o) );
79 for (list<Crossfade *>::const_iterator xfades = other._crossfades.begin(); xfades != other._crossfades.end(); ++xfades) {
80 if ( &(*xfades)->in() == ar) {
81 // We found one! Now copy it!
83 list<Region*>::const_iterator out_o = other.regions.begin();
84 list<Region*>::const_iterator out_n = regions.begin();
86 while (out_o != other.regions.end()) {
88 MidiRegion *ar2 = dynamic_cast<MidiRegion *>( (*out_o) );
90 if ( &(*xfades)->out() == ar2) {
91 MidiRegion *in = dynamic_cast<MidiRegion*>( (*in_n) );
92 MidiRegion *out = dynamic_cast<MidiRegion*>( (*out_n) );
93 Crossfade *new_fade = new Crossfade( *(*xfades), in, out);
94 add_crossfade(*new_fade);
101 // cerr << "HUH!? second region in the crossfade not found!" << endl;
110 PlaylistCreated (this); /* EMIT SIGNAL */
114 MidiPlaylist::MidiPlaylist (const MidiPlaylist& other, jack_nframes_t start, jack_nframes_t dur, string name, bool hidden)
115 : Playlist (other, start, dur, name, hidden)
117 /* this constructor does NOT notify others (session) */
120 MidiPlaylist::~MidiPlaylist ()
122 GoingAway (); /* EMIT SIGNAL */
125 struct RegionSortByLayer {
126 bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
127 return a->layer() < b->layer();
131 /** Returns the number of frames in time duration read (eg could be large when 0 events are read) */
133 MidiPlaylist::read (MidiRingBuffer& dst, jack_nframes_t start,
134 jack_nframes_t dur, unsigned chan_n)
136 /* this function is never called from a realtime thread, so
137 its OK to block (for short intervals).
140 Glib::Mutex::Lock rm (region_lock);
142 jack_nframes_t ret = 0;
143 jack_nframes_t end = start + dur - 1;
144 //jack_nframes_t read_frames = 0;
145 //jack_nframes_t skip_frames = 0;
147 //_read_data_count = 0;
149 // relevent regions overlapping start <--> end
150 vector<boost::shared_ptr<Region> > regs;
152 for (RegionList::iterator i = regions.begin(); i != regions.end(); ++i) {
154 if ((*i)->coverage (start, end) != OverlapNone) {
159 RegionSortByLayer layer_cmp;
160 sort(regs.begin(), regs.end(), layer_cmp);
162 for (vector<boost::shared_ptr<Region> >::iterator i = regs.begin(); i != regs.end(); ++i) {
163 // FIXME: ensure time is monotonic here
164 boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(*i);
165 mr->read_at (dst, start, dur, chan_n, 0, 0);// FIXME read_frames, skip_frames);
166 ret += mr->read_data_count();
169 _read_data_count += ret;
177 MidiPlaylist::remove_dependents (boost::shared_ptr<Region> region)
183 MidiPlaylist::flush_notifications ()
185 Playlist::flush_notifications();
197 MidiPlaylist::refresh_dependents (boost::shared_ptr<Region> r)
202 MidiPlaylist::finalize_split_region (boost::shared_ptr<Region> original, boost::shared_ptr<Region> left, boost::shared_ptr<Region> right)
204 throw; // I don't wanna
206 MidiRegion *orig = dynamic_cast<MidiRegion*>(o);
207 MidiRegion *left = dynamic_cast<MidiRegion*>(l);
208 MidiRegion *right = dynamic_cast<MidiRegion*>(r);
210 for (Crossfades::iterator x = _crossfades.begin(); x != _crossfades.end();) {
211 Crossfades::iterator tmp;
217 if ((*x)->_in == orig) {
218 if (! (*x)->covers(right->position())) {
219 fade = new Crossfade( *(*x), left, (*x)->_out);
221 // Overlap, the crossfade is copied on the left side of the right region instead
222 fade = new Crossfade( *(*x), right, (*x)->_out);
226 if ((*x)->_out == orig) {
227 if (! (*x)->covers(right->position())) {
228 fade = new Crossfade( *(*x), (*x)->_in, right);
230 // Overlap, the crossfade is copied on the right side of the left region instead
231 fade = new Crossfade( *(*x), (*x)->_in, left);
236 _crossfades.remove( (*x) );
237 add_crossfade (*fade);
244 MidiPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
250 MidiPlaylist::set_state (const XMLNode& node)
253 Playlist::set_state (node);
256 // Actually Charles, I don't much care for children
259 XMLNodeList nlist = node.children();
261 for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) {
263 XMLNode* const child = *niter;
271 MidiPlaylist::state (bool full_state)
273 XMLNode& node = Playlist::state (full_state);
279 MidiPlaylist::dump () const
281 boost::shared_ptr<Region> r;
283 cerr << "Playlist \"" << _name << "\" " << endl
284 << regions.size() << " regions "
287 for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
289 cerr << " " << r->name() << " @ " << r << " ["
290 << r->start() << "+" << r->length()
300 MidiPlaylist::destroy_region (boost::shared_ptr<Region> region)
302 boost::shared_ptr<MidiRegion> r = boost::dynamic_pointer_cast<MidiRegion> (region);
303 bool changed = false;
306 PBD::fatal << _("programming error: non-midi Region passed to remove_overlap in midi playlist")
313 RegionLock rlock (this);
314 RegionList::iterator i;
315 RegionList::iterator tmp;
317 for (i = regions.begin(); i != regions.end(); ) {
322 if ((*i) == region) {
333 /* overload this, it normally means "removed", not destroyed */
334 notify_region_removed (region);
341 MidiPlaylist::region_changed (Change what_changed, boost::shared_ptr<Region> region)
343 if (in_flush || in_set_state) {
347 // Feeling rather uninterested today, but thanks for the heads up anyway!
349 Change our_interests = Change (/*MidiRegion::FadeInChanged|
350 MidiRegion::FadeOutChanged|
351 MidiRegion::FadeInActiveChanged|
352 MidiRegion::FadeOutActiveChanged|
353 MidiRegion::EnvelopeActiveChanged|
354 MidiRegion::ScaleAmplitudeChanged|
355 MidiRegion::EnvelopeChanged*/);
356 bool parent_wants_notify;
358 parent_wants_notify = Playlist::region_changed (what_changed, region);
360 if ((parent_wants_notify || (what_changed & our_interests))) {