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livetrax/libs/ardour/automatable.cc

539 lines
15 KiB
C++

/*
Copyright (C) 2001,2007 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cstdio>
#include <errno.h>
#include "pbd/gstdio_compat.h"
#include <glibmm/miscutils.h>
#include "pbd/error.h"
#include "ardour/amp.h"
#include "ardour/automatable.h"
#include "ardour/event_type_map.h"
#include "ardour/gain_control.h"
#include "ardour/midi_track.h"
#include "ardour/pan_controllable.h"
#include "ardour/pannable.h"
#include "ardour/plugin.h"
#include "ardour/plugin_insert.h"
#include "ardour/session.h"
#include "ardour/uri_map.h"
#include "ardour/value_as_string.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
const string Automatable::xml_node_name = X_("Automation");
Automatable::Automatable(Session& session)
: _a_session(session)
{
}
Automatable::Automatable (const Automatable& other)
: ControlSet (other)
, _a_session (other._a_session)
{
Glib::Threads::Mutex::Lock lm (other._control_lock);
for (Controls::const_iterator i = other._controls.begin(); i != other._controls.end(); ++i) {
boost::shared_ptr<Evoral::Control> ac (control_factory (i->first));
add_control (ac);
}
}
Automatable::~Automatable ()
{
{
Glib::Threads::Mutex::Lock lm (_control_lock);
for (Controls::const_iterator li = _controls.begin(); li != _controls.end(); ++li) {
boost::dynamic_pointer_cast<AutomationControl>(li->second)->drop_references ();
}
}
}
int
Automatable::old_set_automation_state (const XMLNode& node)
{
const XMLProperty *prop;
if ((prop = node.property ("path")) != 0) {
load_automation (prop->value());
} else {
warning << _("Automation node has no path property") << endmsg;
}
return 0;
}
int
Automatable::load_automation (const string& path)
{
string fullpath;
if (Glib::path_is_absolute (path)) { // legacy
fullpath = path;
} else {
fullpath = _a_session.automation_dir();
fullpath += path;
}
FILE * in = g_fopen (fullpath.c_str (), "rb");
if (!in) {
warning << string_compose(_("cannot open %2 to load automation data (%3)")
, fullpath, strerror (errno)) << endmsg;
return 1;
}
Glib::Threads::Mutex::Lock lm (control_lock());
set<Evoral::Parameter> tosave;
controls().clear ();
while (!feof(in)) {
double when;
double value;
uint32_t port;
if (3 != fscanf (in, "%d %lf %lf", &port, &when, &value)) {
if (feof(in)) {
break;
}
goto bad;
}
Evoral::Parameter param(PluginAutomation, 0, port);
/* FIXME: this is legacy and only used for plugin inserts? I think? */
boost::shared_ptr<Evoral::Control> c = control (param, true);
c->list()->add (when, value);
tosave.insert (param);
}
::fclose (in);
return 0;
bad:
error << string_compose(_("cannot load automation data from %2"), fullpath) << endmsg;
controls().clear ();
::fclose (in);
return -1;
}
void
Automatable::add_control(boost::shared_ptr<Evoral::Control> ac)
{
Evoral::Parameter param = ac->parameter();
boost::shared_ptr<AutomationList> al = boost::dynamic_pointer_cast<AutomationList> (ac->list ());
if (al) {
al->automation_state_changed.connect_same_thread (
_list_connections,
boost::bind (&Automatable::automation_list_automation_state_changed,
this, ac->parameter(), _1));
}
ControlSet::add_control (ac);
if (al) {
_can_automate_list.insert (param);
automation_list_automation_state_changed (param, al->automation_state ()); // sync everything up
}
}
string
Automatable::describe_parameter (Evoral::Parameter param)
{
/* derived classes like PluginInsert should override this */
if (param == Evoral::Parameter(GainAutomation)) {
return _("Fader");
} else if (param.type() == TrimAutomation) {
return _("Trim");
} else if (param.type() == MuteAutomation) {
return _("Mute");
} else if (param.type() == MidiCCAutomation) {
return string_compose("Controller %1 [%2]", param.id(), int(param.channel()) + 1);
} else if (param.type() == MidiPgmChangeAutomation) {
return string_compose("Program [%1]", int(param.channel()) + 1);
} else if (param.type() == MidiPitchBenderAutomation) {
return string_compose("Bender [%1]", int(param.channel()) + 1);
} else if (param.type() == MidiChannelPressureAutomation) {
return string_compose("Pressure [%1]", int(param.channel()) + 1);
#ifdef LV2_SUPPORT
} else if (param.type() == PluginPropertyAutomation) {
return string_compose("Property %1", URIMap::instance().id_to_uri(param.id()));
#endif
} else {
return EventTypeMap::instance().to_symbol(param);
}
}
void
Automatable::can_automate (Evoral::Parameter what)
{
_can_automate_list.insert (what);
}
/** \a legacy_param is used for loading legacy sessions where an object (IO, Panner)
* had a single automation parameter, with it's type implicit. Derived objects should
* pass that type and it will be used for the untyped AutomationList found.
*/
int
Automatable::set_automation_xml_state (const XMLNode& node, Evoral::Parameter legacy_param)
{
Glib::Threads::Mutex::Lock lm (control_lock());
/* Don't clear controls, since some may be special derived Controllable classes */
XMLNodeList nlist = node.children();
XMLNodeIterator niter;
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
/*if (sscanf ((*niter)->name().c_str(), "parameter-%" PRIu32, &param) != 1) {
error << string_compose (_("%2: badly formatted node name in XML automation state, ignored"), _name) << endmsg;
continue;
}*/
if ((*niter)->name() == "AutomationList") {
const XMLProperty* id_prop = (*niter)->property("automation-id");
Evoral::Parameter param = (id_prop
? EventTypeMap::instance().from_symbol(id_prop->value())
: legacy_param);
if (param.type() == NullAutomation) {
warning << "Automation has null type" << endl;
continue;
}
if (!id_prop) {
warning << "AutomationList node without automation-id property, "
<< "using default: " << EventTypeMap::instance().to_symbol(legacy_param) << endmsg;
}
boost::shared_ptr<AutomationControl> existing = automation_control (param);
if (existing) {
existing->alist()->set_state (**niter, 3000);
} else {
boost::shared_ptr<Evoral::Control> newcontrol = control_factory(param);
add_control (newcontrol);
boost::shared_ptr<AutomationList> al (new AutomationList(**niter, param));
newcontrol->set_list(al);
}
} else {
error << "Expected AutomationList node, got '" << (*niter)->name() << "'" << endmsg;
}
}
return 0;
}
XMLNode&
Automatable::get_automation_xml_state ()
{
Glib::Threads::Mutex::Lock lm (control_lock());
XMLNode* node = new XMLNode (Automatable::xml_node_name);
if (controls().empty()) {
return *node;
}
for (Controls::iterator li = controls().begin(); li != controls().end(); ++li) {
boost::shared_ptr<AutomationList> l = boost::dynamic_pointer_cast<AutomationList>(li->second->list());
if (l && !l->empty()) {
node->add_child_nocopy (l->get_state ());
}
}
return *node;
}
void
Automatable::set_parameter_automation_state (Evoral::Parameter param, AutoState s)
{
Glib::Threads::Mutex::Lock lm (control_lock());
boost::shared_ptr<AutomationControl> c = automation_control (param, true);
if (c && (s != c->automation_state())) {
c->set_automation_state (s);
_a_session.set_dirty ();
AutomationStateChanged(); /* Emit signal */
}
}
AutoState
Automatable::get_parameter_automation_state (Evoral::Parameter param)
{
AutoState result = Off;
boost::shared_ptr<AutomationControl> c = automation_control(param);
if (c) {
result = c->automation_state();
}
return result;
}
void
Automatable::set_parameter_automation_style (Evoral::Parameter param, AutoStyle s)
{
Glib::Threads::Mutex::Lock lm (control_lock());
boost::shared_ptr<AutomationControl> c = automation_control(param, true);
if (c && (s != c->automation_style())) {
c->set_automation_style (s);
_a_session.set_dirty ();
}
}
AutoStyle
Automatable::get_parameter_automation_style (Evoral::Parameter param)
{
Glib::Threads::Mutex::Lock lm (control_lock());
boost::shared_ptr<Evoral::Control> c = control(param);
boost::shared_ptr<AutomationList> l = boost::dynamic_pointer_cast<AutomationList>(c->list());
if (c) {
return l->automation_style();
} else {
return Absolute; // whatever
}
}
void
Automatable::protect_automation ()
{
typedef set<Evoral::Parameter> ParameterSet;
const ParameterSet& automated_params = what_can_be_automated ();
for (ParameterSet::const_iterator i = automated_params.begin(); i != automated_params.end(); ++i) {
boost::shared_ptr<Evoral::Control> c = control(*i);
boost::shared_ptr<AutomationList> l = boost::dynamic_pointer_cast<AutomationList>(c->list());
switch (l->automation_state()) {
case Write:
l->set_automation_state (Off);
break;
case Touch:
l->set_automation_state (Play);
break;
default:
break;
}
}
}
void
Automatable::transport_located (framepos_t now)
{
for (Controls::iterator li = controls().begin(); li != controls().end(); ++li) {
boost::shared_ptr<AutomationControl> c
= boost::dynamic_pointer_cast<AutomationControl>(li->second);
if (c) {
boost::shared_ptr<AutomationList> l
= boost::dynamic_pointer_cast<AutomationList>(c->list());
if (l) {
l->start_write_pass (now);
}
}
}
}
void
Automatable::transport_stopped (framepos_t now)
{
for (Controls::iterator li = controls().begin(); li != controls().end(); ++li) {
boost::shared_ptr<AutomationControl> c =
boost::dynamic_pointer_cast<AutomationControl>(li->second);
if (!c) {
continue;
}
boost::shared_ptr<AutomationList> l =
boost::dynamic_pointer_cast<AutomationList>(c->list());
if (!l) {
continue;
}
/* Stop any active touch gesture just before we mark the write pass
as finished. If we don't do this, the transport can end up stopped with
an AutomationList thinking that a touch is still in progress and,
when the transport is re-started, a touch will magically
be happening without it ever have being started in the usual way.
*/
const bool list_did_write = !l->in_new_write_pass ();
l->stop_touch (true, now);
c->commit_transaction (list_did_write);
l->write_pass_finished (now, Config->get_automation_thinning_factor ());
if (l->automation_state () == Write) {
l->set_automation_state (Touch);
}
if (l->automation_playback ()) {
c->set_value_unchecked (c->list ()->eval (now));
}
}
}
boost::shared_ptr<Evoral::Control>
Automatable::control_factory(const Evoral::Parameter& param)
{
Evoral::Control* control = NULL;
bool make_list = true;
ParameterDescriptor desc(param);
boost::shared_ptr<AutomationList> list;
if (param.type() >= MidiCCAutomation && param.type() <= MidiChannelPressureAutomation) {
MidiTrack* mt = dynamic_cast<MidiTrack*>(this);
if (mt) {
control = new MidiTrack::MidiControl(mt, param);
make_list = false; // No list, this is region "automation"
}
} else if (param.type() == PluginAutomation) {
PluginInsert* pi = dynamic_cast<PluginInsert*>(this);
if (pi) {
pi->plugin(0)->get_parameter_descriptor(param.id(), desc);
control = new PluginInsert::PluginControl(pi, param, desc);
} else {
warning << "PluginAutomation for non-Plugin" << endl;
}
} else if (param.type() == PluginPropertyAutomation) {
PluginInsert* pi = dynamic_cast<PluginInsert*>(this);
if (pi) {
desc = pi->plugin(0)->get_property_descriptor(param.id());
if (desc.datatype != Variant::NOTHING) {
if (!Variant::type_is_numeric(desc.datatype)) {
make_list = false; // Can't automate non-numeric data yet
} else {
list = boost::shared_ptr<AutomationList>(new AutomationList(param, desc));
}
control = new PluginInsert::PluginPropertyControl(pi, param, desc, list);
}
} else {
warning << "PluginPropertyAutomation for non-Plugin" << endl;
}
} else if (param.type() == GainAutomation) {
control = new GainControl(_a_session, param);
} else if (param.type() == TrimAutomation) {
control = new GainControl(_a_session, param);
} else if (param.type() == PanAzimuthAutomation || param.type() == PanWidthAutomation || param.type() == PanElevationAutomation) {
Pannable* pannable = dynamic_cast<Pannable*>(this);
if (pannable) {
control = new PanControllable (_a_session, pannable->describe_parameter (param), pannable, param);
} else {
warning << "PanAutomation for non-Pannable" << endl;
}
}
if (make_list && !list) {
list = boost::shared_ptr<AutomationList>(new AutomationList(param, desc));
}
if (!control) {
control = new AutomationControl(_a_session, param, desc, list);
}
return boost::shared_ptr<Evoral::Control>(control);
}
boost::shared_ptr<AutomationControl>
Automatable::automation_control (const Evoral::Parameter& id, bool create)
{
return boost::dynamic_pointer_cast<AutomationControl>(Evoral::ControlSet::control(id, create));
}
boost::shared_ptr<const AutomationControl>
Automatable::automation_control (const Evoral::Parameter& id) const
{
return boost::dynamic_pointer_cast<const AutomationControl>(Evoral::ControlSet::control(id));
}
void
Automatable::clear_controls ()
{
_control_connections.drop_connections ();
ControlSet::clear_controls ();
}
string
Automatable::value_as_string (boost::shared_ptr<AutomationControl> ac) const
{
return ARDOUR::value_as_string(ac->desc(), ac->get_value());
}
bool
Automatable::find_next_event (double now, double end, Evoral::ControlEvent& next_event, bool only_active) const
{
Controls::const_iterator li;
next_event.when = std::numeric_limits<double>::max();
for (li = _controls.begin(); li != _controls.end(); ++li) {
boost::shared_ptr<AutomationControl> c
= boost::dynamic_pointer_cast<AutomationControl>(li->second);
if (only_active && (!c || !c->automation_playback())) {
continue;
}
Evoral::ControlList::const_iterator i;
boost::shared_ptr<const Evoral::ControlList> alist (li->second->list());
Evoral::ControlEvent cp (now, 0.0f);
if (!alist) {
continue;
}
for (i = lower_bound (alist->begin(), alist->end(), &cp, Evoral::ControlList::time_comparator);
i != alist->end() && (*i)->when < end; ++i) {
if ((*i)->when > now) {
break;
}
}
if (i != alist->end() && (*i)->when < end) {
if ((*i)->when < next_event.when) {
next_event.when = (*i)->when;
}
}
}
return next_event.when != std::numeric_limits<double>::max();
}