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livetrax/libs/ardour/playlist_factory.cc
Robin Gareus f95c9216b1
Fix playlist use-count 2/2
* Use an atomic reference count since the freeze-thread
  can call use_playlist.
* Remove explicit argument to construct unused playlist
  because playlists are unused by default. This also
  lead to use-count becoming negative (or rather UINT32_MAX)
2023-06-10 03:33:51 +02:00

135 lines
3.8 KiB
C++

/*
* Copyright (C) 2006-2009 David Robillard <d@drobilla.net>
* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2010 Carl Hetherington <carl@carlh.net>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "pbd/error.h"
#include "pbd/xml++.h"
#include "ardour/playlist.h"
#include "ardour/audioplaylist.h"
#include "ardour/midi_playlist.h"
#include "ardour/playlist_factory.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
PBD::Signal1<void,std::shared_ptr<Playlist>> PlaylistFactory::PlaylistCreated;
std::shared_ptr<Playlist>
PlaylistFactory::create (Session& s, const XMLNode& node, bool hidden)
{
XMLProperty const * type = node.property("type");
std::shared_ptr<Playlist> pl;
try {
if (!type || type->value() == "audio") {
pl = std::shared_ptr<Playlist> (new AudioPlaylist (s, node, hidden));
} else if (type->value() == "midi") {
pl = std::shared_ptr<Playlist> (new MidiPlaylist (s, node, hidden));
}
pl->set_region_ownership ();
if (pl && !hidden) {
PlaylistCreated (pl);
}
return pl;
} catch (...) {
return std::shared_ptr<Playlist> ();
}
}
std::shared_ptr<Playlist>
PlaylistFactory::create (DataType type, Session& s, string name, bool hidden)
{
std::shared_ptr<Playlist> pl;
try {
if (type == DataType::AUDIO)
pl = std::shared_ptr<Playlist> (new AudioPlaylist (s, name, hidden));
else if (type == DataType::MIDI)
pl = std::shared_ptr<Playlist> (new MidiPlaylist (s, name, hidden));
if (pl && !hidden) {
PlaylistCreated (pl);
}
return pl;
} catch (...) {
return std::shared_ptr<Playlist> ();
}
}
std::shared_ptr<Playlist>
PlaylistFactory::create (std::shared_ptr<const Playlist> old, string name, bool hidden)
{
std::shared_ptr<Playlist> pl;
std::shared_ptr<const AudioPlaylist> apl;
std::shared_ptr<const MidiPlaylist> mpl;
try {
if ((apl = std::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
pl = std::shared_ptr<Playlist> (new AudioPlaylist (apl, name, hidden));
pl->set_region_ownership ();
} else if ((mpl = std::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
pl = std::shared_ptr<Playlist> (new MidiPlaylist (mpl, name, hidden));
pl->set_region_ownership ();
}
if (pl && !hidden) {
PlaylistCreated (pl);
}
return pl;
} catch (...) {
return std::shared_ptr<Playlist> ();
}
}
std::shared_ptr<Playlist>
PlaylistFactory::create (std::shared_ptr<const Playlist> old, timepos_t const & start, timepos_t const & cnt, string name, bool hidden)
{
std::shared_ptr<Playlist> pl;
std::shared_ptr<const AudioPlaylist> apl;
std::shared_ptr<const MidiPlaylist> mpl;
try {
if ((apl = std::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
pl = std::shared_ptr<Playlist> (new AudioPlaylist (apl, start, cnt, name, hidden));
pl->set_region_ownership ();
} else if ((mpl = std::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
pl = std::shared_ptr<Playlist> (new MidiPlaylist (mpl, start, cnt, name, hidden));
pl->set_region_ownership ();
}
/* this factory method does NOT notify others */
return pl;
} catch (...) {
return std::shared_ptr<Playlist> ();
}
}