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https://github.com/Ardour/ardour.git
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471 lines
11 KiB
C++
471 lines
11 KiB
C++
/*
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Copyright (C) 2001 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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$Id$
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*/
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#include <fstream>
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#include <algorithm>
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#include <string>
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#include <cerrno>
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#include <unistd.h>
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#include <sstream>
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#include <sigc++/bind.h>
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#include <pbd/xml++.h>
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#include <ardour/redirect.h>
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#include <ardour/session.h>
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#include <ardour/utils.h>
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#include <ardour/send.h>
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#include <ardour/insert.h>
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#include "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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const string Redirect::state_node_name = "Redirect";
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sigc::signal<void,Redirect*> Redirect::RedirectCreated;
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Redirect::Redirect (Session& s, const string& name, Placement p,
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int input_min, int input_max, int output_min, int output_max)
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: IO (s, name, input_min, input_max, output_min, output_max)
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{
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_placement = p;
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_active = false;
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_sort_key = 0;
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_gui = 0;
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_extra_xml = 0;
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}
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Redirect::~Redirect ()
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{
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}
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boost::shared_ptr<Redirect>
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Redirect::clone (boost::shared_ptr<const Redirect> other)
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{
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boost::shared_ptr<const Send> send;
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boost::shared_ptr<const PortInsert> port_insert;
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boost::shared_ptr<const PluginInsert> plugin_insert;
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if ((send = boost::dynamic_pointer_cast<const Send>(other)) != 0) {
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return boost::shared_ptr<Redirect> (new Send (*send));
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} else if ((port_insert = boost::dynamic_pointer_cast<const PortInsert>(other)) != 0) {
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return boost::shared_ptr<Redirect> (new PortInsert (*port_insert));
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} else if ((plugin_insert = boost::dynamic_pointer_cast<const PluginInsert>(other)) != 0) {
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return boost::shared_ptr<Redirect> (new PluginInsert (*plugin_insert));
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} else {
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fatal << _("programming error: unknown Redirect type in Redirect::Clone!\n")
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<< endmsg;
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/*NOTREACHED*/
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}
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return boost::shared_ptr<Redirect>();
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}
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void
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Redirect::set_sort_key (uint32_t key)
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{
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_sort_key = key;
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}
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void
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Redirect::set_placement (Placement p, void *src)
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{
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if (_placement != p) {
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_placement = p;
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placement_changed (this, src); /* EMIT SIGNAL */
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}
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}
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void
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Redirect::set_placement (const string& str, void *src)
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{
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if (str == _("pre")) {
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set_placement (PreFader, this);
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} else if (str == _("post")) {
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set_placement (PostFader, this);
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} else {
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error << string_compose(_("Redirect: unknown placement string \"%1\" (ignored)"), str) << endmsg;
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}
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}
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int
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Redirect::load_automation (string path)
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{
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string fullpath;
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if (path[0] == '/') { // legacy
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fullpath = path;
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} else {
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fullpath = _session.automation_dir();
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fullpath += path;
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}
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ifstream in (fullpath.c_str());
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if (!in) {
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warning << string_compose(_("%1: cannot open %2 to load automation data (%3)"), _name, fullpath, strerror (errno)) << endmsg;
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return 1;
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}
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Glib::Mutex::Lock lm (_automation_lock);
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set<uint32_t> tosave;
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parameter_automation.clear ();
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while (in) {
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double when;
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double value;
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uint32_t port;
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in >> port; if (!in) break;
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in >> when; if (!in) goto bad;
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in >> value; if (!in) goto bad;
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AutomationList& al = automation_list (port);
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al.add (when, value);
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tosave.insert (port);
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}
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for (set<uint32_t>::iterator i = tosave.begin(); i != tosave.end(); ++i) {
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automation_list (*i).save_state (_("loaded from disk"));
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}
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return 0;
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bad:
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error << string_compose(_("%1: cannot load automation data from %2"), _name, fullpath) << endmsg;
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parameter_automation.clear ();
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return -1;
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}
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int
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Redirect::save_automation (string path)
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{
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Glib::Mutex::Lock lm (_automation_lock);
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string fullpath;
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if (parameter_automation.empty()) {
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return 1;
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}
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fullpath = _session.automation_dir();
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fullpath += path;
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ofstream out (fullpath.c_str());
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if (!out) {
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error << string_compose(_("%1: cannot open %2 to store automation data (%3)"), _name, fullpath, strerror (errno)) << endmsg;
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return -1;
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}
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AutomationList::const_iterator i;
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map<uint32_t,AutomationList*>::iterator li;
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for (li = parameter_automation.begin(); li != parameter_automation.end(); ++li) {
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for (i = (*li).second->begin(); i != (*li).second->end(); ++i) {
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out << (*li).first << ' ' << (*i)->when << ' ' << (*i)->value << endl;
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if (!out) {
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break;
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}
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}
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if (i != (*li).second->end()) {
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unlink (fullpath.c_str());
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error << string_compose(_("%1: could not save automation state to %2"), _name, fullpath) << endmsg;
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return -1;
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}
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}
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if (li != parameter_automation.end()) {
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unlink (fullpath.c_str());
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error << string_compose(_("%1: could not save automation state to %2"), _name, fullpath) << endmsg;
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return -1;
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}
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return 0;
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}
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XMLNode&
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Redirect::get_state (void)
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{
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return state (true);
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}
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XMLNode&
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Redirect::state (bool full_state)
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{
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char buf[64];
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XMLNode* node = new XMLNode (state_node_name);
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stringstream sstr;
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node->add_property("active", active() ? "yes" : "no");
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node->add_property("placement", placement_as_string (placement()));
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node->add_child_nocopy (IO::state (full_state));
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if (_extra_xml){
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node->add_child_copy (*_extra_xml);
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}
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if (full_state) {
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string path;
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string legal_name;
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path = _session.snap_name();
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path += "-redirect-";
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id().print (buf);
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path += buf;
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path += ".automation";
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/* XXX we didn't ask for a state save, we asked for the current state.
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FIX ME!
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*/
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switch (save_automation (path)) {
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case -1:
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error << string_compose(_("Could not get state from Redirect (%1). Problem with save_automation"), _name) << endmsg;
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break;
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case 0:
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XMLNode *aevents = node->add_child("Automation");
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for (set<uint32_t>::iterator x = visible_parameter_automation.begin(); x != visible_parameter_automation.end(); ++x) {
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if (x != visible_parameter_automation.begin()) {
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sstr << ' ';
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}
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sstr << *x;
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}
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aevents->add_property ("path", path);
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aevents->add_property ("visible", sstr.str());
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break;
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}
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}
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return *node;
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}
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void
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Redirect::what_has_automation (set<uint32_t>& s) const
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{
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Glib::Mutex::Lock lm (_automation_lock);
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map<uint32_t,AutomationList*>::const_iterator li;
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for (li = parameter_automation.begin(); li != parameter_automation.end(); ++li) {
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s.insert ((*li).first);
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}
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}
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void
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Redirect::what_has_visible_automation (set<uint32_t>& s) const
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{
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Glib::Mutex::Lock lm (_automation_lock);
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set<uint32_t>::const_iterator li;
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for (li = visible_parameter_automation.begin(); li != visible_parameter_automation.end(); ++li) {
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s.insert (*li);
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}
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}
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int
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Redirect::set_state (const XMLNode& node)
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{
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const XMLProperty *prop;
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if (node.name() != state_node_name) {
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error << string_compose(_("incorrect XML node \"%1\" passed to Redirect object"), node.name()) << endmsg;
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return -1;
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}
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XMLNodeList nlist = node.children();
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XMLNodeIterator niter;
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bool have_io = false;
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for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
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if ((*niter)->name() == IO::state_node_name) {
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IO::set_state (**niter);
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have_io = true;
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} else if ((*niter)->name() == "Automation") {
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XMLProperty *prop;
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if ((prop = (*niter)->property ("path")) != 0) {
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load_automation (prop->value());
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} else {
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warning << string_compose(_("%1: Automation node has no path property"), _name) << endmsg;
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}
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if ((prop = (*niter)->property ("visible")) != 0) {
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uint32_t what;
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stringstream sstr;
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visible_parameter_automation.clear ();
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sstr << prop->value();
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while (1) {
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sstr >> what;
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if (sstr.fail()) {
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break;
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}
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mark_automation_visible (what, true);
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}
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}
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} else if ((*niter)->name() == "extra") {
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_extra_xml = new XMLNode (*(*niter));
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}
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}
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if (!have_io) {
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error << _("XML node describing an IO is missing an IO node") << endmsg;
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return -1;
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}
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if ((prop = node.property ("active")) == 0) {
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error << _("XML node describing a redirect is missing the `active' field") << endmsg;
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return -1;
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}
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if (_active != (prop->value() == "yes")) {
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_active = !_active;
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active_changed (this, this); /* EMIT_SIGNAL */
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}
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if ((prop = node.property ("placement")) == 0) {
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error << _("XML node describing a redirect is missing the `placement' field") << endmsg;
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return -1;
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}
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set_placement (prop->value(), this);
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return 0;
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}
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AutomationList&
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Redirect::automation_list (uint32_t parameter)
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{
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AutomationList* al = parameter_automation[parameter];
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if (al == 0) {
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al = parameter_automation[parameter] = new AutomationList (default_parameter_value (parameter));
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/* let derived classes do whatever they need with this */
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automation_list_creation_callback (parameter, *al);
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}
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return *al;
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}
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string
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Redirect::describe_parameter (uint32_t which)
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{
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/* derived classes will override this */
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return "";
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}
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void
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Redirect::can_automate (uint32_t what)
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{
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can_automate_list.insert (what);
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}
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void
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Redirect::mark_automation_visible (uint32_t what, bool yn)
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{
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if (yn) {
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visible_parameter_automation.insert (what);
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} else {
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set<uint32_t>::iterator i;
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if ((i = visible_parameter_automation.find (what)) != visible_parameter_automation.end()) {
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visible_parameter_automation.erase (i);
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}
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}
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}
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bool
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Redirect::find_next_event (jack_nframes_t now, jack_nframes_t end, ControlEvent& next_event) const
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{
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map<uint32_t,AutomationList*>::const_iterator li;
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AutomationList::TimeComparator cmp;
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next_event.when = max_frames;
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for (li = parameter_automation.begin(); li != parameter_automation.end(); ++li) {
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AutomationList::const_iterator i;
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const AutomationList& alist (*((*li).second));
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ControlEvent cp (now, 0.0f);
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for (i = lower_bound (alist.const_begin(), alist.const_end(), &cp, cmp); i != alist.const_end() && (*i)->when < end; ++i) {
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if ((*i)->when > now) {
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break;
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}
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}
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if (i != alist.const_end() && (*i)->when < end) {
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if ((*i)->when < next_event.when) {
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next_event.when = (*i)->when;
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}
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}
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}
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return next_event.when != max_frames;
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}
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void
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Redirect::store_state (RedirectState& state) const
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{
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state.active = _active;
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}
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Change
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Redirect::restore_state (StateManager::State& state)
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{
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RedirectState* rstate = dynamic_cast<RedirectState*> (&state);
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set_active (rstate->active, this);
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return Change (0);
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}
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StateManager::State*
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Redirect::state_factory (std::string why) const
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{
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RedirectState* state = new RedirectState (why);
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store_state (*state);
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return state;
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}
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void
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Redirect::set_active (bool yn, void* src)
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{
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_active = yn;
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save_state (_("active_changed"));
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active_changed (this, src);
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_session.set_dirty ();
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}
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