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livetrax/libs/ardour/windows_vst_plugin.cc

142 lines
3.8 KiB
C++

/*
* Copyright (C) 2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2014-2018 Robin Gareus <robin@gareus.org>
* Copyright (C) 2016 Paul Davis <paul@linuxaudiosystems.com>
*
* 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 "fst.h"
#include <glibmm/fileutils.h>
#include <glibmm/miscutils.h>
#include "ardour/filesystem_paths.h"
#include "ardour/windows_vst_plugin.h"
#include "ardour/session.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
WindowsVSTPlugin::WindowsVSTPlugin (AudioEngine& e, Session& session, VSTHandle* h, int unique_id)
: VSTPlugin (e, session, h)
{
Session::vst_current_loading_id = unique_id;
if ((_state = fst_instantiate (_handle, Session::vst_callback, this)) == 0) {
throw failed_constructor();
}
open_plugin ();
Session::vst_current_loading_id = 0;
init_plugin ();
}
WindowsVSTPlugin::WindowsVSTPlugin (const WindowsVSTPlugin &other)
: VSTPlugin (other)
{
_handle = other._handle;
Session::vst_current_loading_id = PBD::atoi(other.unique_id());
if ((_state = fst_instantiate (_handle, Session::vst_callback, this)) == 0) {
throw failed_constructor();
}
open_plugin ();
Session::vst_current_loading_id = 0;
XMLNode* root = new XMLNode (other.state_node_name ());
other.add_state (root);
set_state (*root, Stateful::current_state_version);
delete root;
init_plugin ();
}
WindowsVSTPlugin::~WindowsVSTPlugin ()
{
deactivate ();
fst_close (_state);
}
PluginPtr
WindowsVSTPluginInfo::load (Session& session)
{
try {
PluginPtr plugin;
if (Config->get_use_windows_vst ()) {
VSTHandle* handle;
handle = fst_load(path.c_str());
if (!handle) {
error << string_compose(_("VST: cannot load module from \"%1\""), path) << endmsg;
return PluginPtr ((Plugin*) 0);
} else {
plugin.reset (new WindowsVSTPlugin (session.engine(), session, handle, PBD::atoi(unique_id)));
}
} else {
error << _("You asked ardour to not use any VST plugins") << endmsg;
return PluginPtr ((Plugin*) 0);
}
plugin->set_info(PluginInfoPtr(new WindowsVSTPluginInfo(*this)));
return plugin;
}
catch (failed_constructor &err) {
return PluginPtr ((Plugin*) 0);
}
}
std::vector<Plugin::PresetRecord>
WindowsVSTPluginInfo::get_presets (bool user_only) const
{
std::vector<Plugin::PresetRecord> p;
if (!Config->get_use_windows_vst()) {
return p;
}
if (!user_only) {
// TODO cache and load factory-preset names
}
/* user presets */
XMLTree* t = new XMLTree;
std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("vst-%1", unique_id));
if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
t->set_filename (pf);
if (t->read ()) {
XMLNode* root = t->root ();
for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
XMLProperty const * uri = (*i)->property (X_("uri"));
XMLProperty const * label = (*i)->property (X_("label"));
p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));
}
}
}
delete t;
return p;
}
WindowsVSTPluginInfo::WindowsVSTPluginInfo (VST2Info const& nfo) : VSTPluginInfo (nfo)
{
type = ARDOUR::Windows_VST;
}