ef172d7ad6
LV2 preset support as implemented in svn calf plugins (experimental extension). git-svn-id: svn://localhost/ardour2/branches/3.0@4547 d708f5d6-7413-0410-9779-e7cbd77b26cf
290 lines
6.5 KiB
C++
290 lines
6.5 KiB
C++
/*
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Copyright (C) 2000-2002 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 <vector>
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#include <string>
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#include <cstdlib>
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#include <cstdio> // so libraptor doesn't complain
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#include <cmath>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <cerrno>
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#include <utility>
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#include <lrdf.h>
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#include <pbd/compose.h>
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#include <pbd/error.h>
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#include <pbd/xml++.h>
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#include <ardour/ardour.h>
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#include <ardour/session.h>
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#include <ardour/audioengine.h>
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#include <ardour/plugin.h>
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#include <ardour/ladspa_plugin.h>
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#include <ardour/plugin_manager.h>
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#ifdef HAVE_AUDIOUNITS
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#include <ardour/audio_unit.h>
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#endif
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#ifdef HAVE_SLV2
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#include <ardour/lv2_plugin.h>
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#endif
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#include <pbd/stl_delete.h>
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#include "i18n.h"
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#include <locale.h>
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using namespace ARDOUR;
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using namespace PBD;
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Plugin::Plugin (AudioEngine& e, Session& s)
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: _engine (e), _session (s)
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{
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}
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Plugin::Plugin (const Plugin& other)
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: _engine (other._engine), _session (other._session), _info (other._info)
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{
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}
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Plugin::~Plugin ()
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{
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}
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const Plugin::PresetRecord*
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Plugin::preset_by_label(const string& label)
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{
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// FIXME: O(n)
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for (map<string,PresetRecord>::const_iterator i = presets.begin(); i != presets.end(); ++i) {
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if (i->second.label == label) {
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return &i->second;
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}
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}
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return NULL;
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}
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const Plugin::PresetRecord*
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Plugin::preset_by_uri(const string& uri)
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{
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map<string,PresetRecord>::const_iterator pr = presets.find(uri);
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if (pr != presets.end()) {
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return &pr->second;
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} else {
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return NULL;
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}
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}
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vector<Plugin::PresetRecord>
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Plugin::get_presets()
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{
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vector<PresetRecord> result;
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uint32_t id;
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std::string unique (unique_id());
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/* XXX problem: AU plugins don't have numeric ID's.
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Solution: they have a different method of providing presets.
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XXX sub-problem: implement it.
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*/
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if (!isdigit (unique[0])) {
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return result;
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}
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id = atol (unique.c_str());
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lrdf_uris* set_uris = lrdf_get_setting_uris(id);
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if (set_uris) {
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for (uint32_t i = 0; i < (uint32_t) set_uris->count; ++i) {
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if (char* label = lrdf_get_label(set_uris->items[i])) {
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PresetRecord rec(set_uris->items[i], label);
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result.push_back(rec);
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presets.insert(std::make_pair(set_uris->items[i], rec));
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}
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}
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lrdf_free_uris(set_uris);
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}
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return result;
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}
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bool
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Plugin::load_preset(const string preset_uri)
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{
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lrdf_defaults* defs = lrdf_get_setting_values(preset_uri.c_str());
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if (defs) {
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for (uint32_t i = 0; i < (uint32_t) defs->count; ++i) {
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// The defs->items[i].pid < defs->count check is to work around
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// a bug in liblrdf that saves invalid values into the presets file.
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if (((uint32_t) defs->items[i].pid < (uint32_t) defs->count) && parameter_is_input (defs->items[i].pid)) {
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set_parameter(defs->items[i].pid, defs->items[i].value);
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}
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}
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lrdf_free_setting_values(defs);
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}
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return true;
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}
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bool
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Plugin::save_preset (string uri, string domain)
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{
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lrdf_portvalue portvalues[parameter_count()];
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lrdf_defaults defaults;
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uint32_t id;
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std::string unique (unique_id());
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/* XXX problem: AU plugins don't have numeric ID's.
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Solution: they have a different method of providing/saving presets.
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XXX sub-problem: implement it.
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*/
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if (!isdigit (unique[0])) {
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return false;
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}
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id = atol (unique.c_str());
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defaults.count = parameter_count();
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defaults.items = portvalues;
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for (uint32_t i = 0; i < parameter_count(); ++i) {
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if (parameter_is_input (i)) {
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portvalues[i].pid = i;
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portvalues[i].value = get_parameter(i);
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}
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}
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char* envvar;
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if ((envvar = getenv ("HOME")) == 0) {
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warning << _("Could not locate HOME. Preset not saved.") << endmsg;
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return false;
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}
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string source(string_compose("file:%1/.%2/rdf/ardour-presets.n3", envvar, domain));
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map<string,PresetRecord>::const_iterator pr = presets.find(uri);
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if (pr == presets.end()) {
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warning << _("Could not find preset ") << uri << endmsg;
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return false;
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}
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free(lrdf_add_preset(source.c_str(), pr->second.label.c_str(), id, &defaults));
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string path = string_compose("%1/.%2", envvar, domain);
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if (g_mkdir_with_parents (path.c_str(), 0775)) {
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warning << string_compose(_("Could not create %1. Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
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return false;
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}
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path += "/rdf";
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if (g_mkdir_with_parents (path.c_str(), 0775)) {
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warning << string_compose(_("Could not create %1. Preset not saved. (%2)"), path, strerror(errno)) << endmsg;
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return false;
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}
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if (lrdf_export_by_source(source.c_str(), source.substr(5).c_str())) {
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warning << string_compose(_("Error saving presets file %1."), source) << endmsg;
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return false;
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}
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return true;
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}
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PluginPtr
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ARDOUR::find_plugin(Session& session, string identifier, PluginType type)
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{
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PluginManager *mgr = PluginManager::the_manager();
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PluginInfoList plugs;
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switch (type) {
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case ARDOUR::LADSPA:
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plugs = mgr->ladspa_plugin_info();
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break;
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#ifdef HAVE_SLV2
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case ARDOUR::LV2:
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plugs = mgr->lv2_plugin_info();
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break;
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#endif
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#ifdef VST_SUPPORT
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case ARDOUR::VST:
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plugs = mgr->vst_plugin_info();
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break;
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#endif
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#ifdef HAVE_AUDIOUNITS
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case ARDOUR::AudioUnit:
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plugs = mgr->au_plugin_info();
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break;
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#endif
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default:
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return PluginPtr ((Plugin *) 0);
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}
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PluginInfoList::iterator i;
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for (i = plugs.begin(); i != plugs.end(); ++i) {
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if (identifier == (*i)->unique_id){
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return (*i)->load (session);
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}
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}
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#ifdef VST_SUPPORT
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/* hmm, we didn't find it. could be because in older versions of Ardour.
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we used to store the name of a VST plugin, not its unique ID. so try
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again.
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*/
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for (i = plugs.begin(); i != plugs.end(); ++i) {
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if (identifier == (*i)->name){
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return (*i)->load (session);
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}
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}
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#endif
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return PluginPtr ((Plugin*) 0);
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}
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ChanCount
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Plugin::output_streams () const
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{
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/* LADSPA & VST should not get here because they do not
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return "infinite" i/o counts.
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*/
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return ChanCount::ZERO;
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}
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ChanCount
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Plugin::input_streams () const
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{
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/* LADSPA & VST should not get here because they do not
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return "infinite" i/o counts.
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*/
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return ChanCount::ZERO;
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}
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