170 lines
4.5 KiB
C++
170 lines
4.5 KiB
C++
/*
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Copyright (C) 2004 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glibmm/fileutils.h>
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#include <glibmm/miscutils.h>
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#include "ardour/filesystem_paths.h"
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#include "ardour/linux_vst_support.h"
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#include "ardour/session.h"
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#include "ardour/lxvst_plugin.h"
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#include "pbd/i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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LXVSTPlugin::LXVSTPlugin (AudioEngine& e, Session& session, VSTHandle* h, int unique_id)
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: VSTPlugin (e, session, h)
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{
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/* Instantiate the plugin and return a VSTState* */
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Session::vst_current_loading_id = unique_id;
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if ((_state = vstfx_instantiate (_handle, Session::vst_callback, this)) == 0) {
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throw failed_constructor();
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}
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Session::vst_current_loading_id = 0;
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set_plugin (_state->plugin);
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}
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LXVSTPlugin::LXVSTPlugin (const LXVSTPlugin &other)
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: VSTPlugin (other)
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{
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_handle = other._handle;
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Session::vst_current_loading_id = PBD::atoi(other.unique_id());
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if ((_state = vstfx_instantiate (_handle, Session::vst_callback, this)) == 0) {
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throw failed_constructor();
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}
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Session::vst_current_loading_id = 0;
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_plugin = _state->plugin;
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// Plugin::setup_controls ();
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}
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LXVSTPlugin::~LXVSTPlugin ()
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{
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vstfx_close (_state);
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}
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PluginPtr
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LXVSTPluginInfo::load (Session& session)
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{
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try {
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PluginPtr plugin;
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if (Config->get_use_lxvst()) {
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VSTHandle* handle;
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handle = vstfx_load(path.c_str());
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if (handle == NULL) {
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error << string_compose(_("LXVST: cannot load module from \"%1\""), path) << endmsg;
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}
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else {
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plugin.reset (new LXVSTPlugin (session.engine(), session, handle, PBD::atoi(unique_id)));
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}
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}
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else {
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error << _("You asked ardour to not use any LXVST plugins") << endmsg;
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return PluginPtr ((Plugin*) 0);
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}
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plugin->set_info(PluginInfoPtr(new LXVSTPluginInfo(*this)));
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return plugin;
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}
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catch (failed_constructor &err) {
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return PluginPtr ((Plugin*) 0);
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}
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}
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std::vector<Plugin::PresetRecord>
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LXVSTPluginInfo::get_presets (bool user_only) const
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{
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std::vector<Plugin::PresetRecord> p;
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#ifndef NO_PLUGIN_STATE
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if (!Config->get_use_lxvst()) {
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return p;
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}
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if (!user_only) {
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// TODO - cache, instantiating the plugin can be heavy
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/* Built-in presets */
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VSTHandle* handle = vstfx_load(path.c_str());
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Session::vst_current_loading_id = atoi (unique_id);
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AEffect* plugin = handle->main_entry (Session::vst_callback);
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Session::vst_current_loading_id = 0;
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plugin->dispatcher (plugin, effOpen, 0, 0, 0, 0); // :(
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int const vst_version = plugin->dispatcher (plugin, effGetVstVersion, 0, 0, NULL, 0);
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for (int i = 0; i < plugin->numPrograms; ++i) {
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Plugin::PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id, i), "", false);
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if (vst_version >= 2) {
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char buf[256];
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if (plugin->dispatcher (plugin, 29, i, 0, buf, 0) == 1) {
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r.label = buf;
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} else {
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r.label = string_compose (_("Preset %1"), i);
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}
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} else {
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r.label = string_compose (_("Preset %1"), i);
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}
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p.push_back (r);
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}
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plugin->dispatcher (plugin, effMainsChanged, 0, 0, 0, 0);
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plugin->dispatcher (plugin, effClose, 0, 0, 0, 0); // :(
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if (handle->plugincnt) {
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handle->plugincnt--;
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}
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vstfx_unload (handle);
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}
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/* user presets */
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XMLTree* t = new XMLTree;
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std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("vst-%1", unique_id));
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if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
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t->set_filename (pf);
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if (t->read ()) { // TODO read names only. skip parsing the actual data
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XMLNode* root = t->root ();
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for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
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XMLProperty const * uri = (*i)->property (X_("uri"));
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XMLProperty const * label = (*i)->property (X_("label"));
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p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));
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}
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}
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}
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delete t;
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#endif
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return p;
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}
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LXVSTPluginInfo::LXVSTPluginInfo()
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{
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type = ARDOUR::LXVST;
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}
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