/*
Copyright (C) 2007 Paul Davis
- Author: Dave Robillard
+ Author: David Robillard
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
*/
+#include <math.h>
#include <iostream>
-#include "ardour/automatable.h"
+
+#include "pbd/memento_command.h"
+#include "pbd/stacktrace.h"
+
+#include "ardour/audioengine.h"
#include "ardour/automation_control.h"
+#include "ardour/automation_watch.h"
+#include "ardour/control_group.h"
#include "ardour/event_type_map.h"
#include "ardour/session.h"
+#include "ardour/selection.h"
+#include "ardour/value_as_string.h"
+
+#include "pbd/i18n.h"
+
+#ifdef COMPILER_MSVC
+#include <float.h>
+// C99 'isfinite()' is not available in MSVC.
+#define isfinite_local(val) (bool)_finite((double)val)
+#else
+#define isfinite_local isfinite
+#endif
using namespace std;
using namespace ARDOUR;
using namespace PBD;
+AutomationControl::AutomationControl(ARDOUR::Session& session,
+ const Evoral::Parameter& parameter,
+ const ParameterDescriptor& desc,
+ boost::shared_ptr<ARDOUR::AutomationList> list,
+ const string& name,
+ Controllable::Flag flags)
+
+ : Controllable (name.empty() ? EventTypeMap::instance().to_symbol(parameter) : name, flags)
+ , Evoral::Control(parameter, desc, list)
+ , SessionHandleRef (session)
+ , _desc(desc)
+ , _no_session(false)
+{
+ if (_desc.toggled) {
+ set_flags (Controllable::Toggle);
+ }
+ boost::shared_ptr<AutomationList> al = alist();
+ if (al) {
+ al->StateChanged.connect_same_thread (_state_changed_connection, boost::bind (&Session::set_dirty, &_session));
+ }
+}
+
+AutomationControl::~AutomationControl ()
+{
+ if (!_no_session && !_session.deletion_in_progress ()) {
+ _session.selection().remove_control_by_id (id());
+ DropReferences (); /* EMIT SIGNAL */
+ }
+}
-AutomationControl::AutomationControl(
- ARDOUR::Session& session,
- const Evoral::Parameter& parameter,
- boost::shared_ptr<ARDOUR::AutomationList> list,
- const string& name)
- : Controllable((name != "") ? name : EventTypeMap::instance().to_symbol(parameter))
- , Evoral::Control(parameter, list)
- , _session(session)
+void
+AutomationControl::session_going_away ()
{
+ SessionHandleRef::session_going_away ();
+ DropReferences (); /* EMIT SIGNAL */
+ _no_session = true;
}
+bool
+AutomationControl::writable() const
+{
+ boost::shared_ptr<AutomationList> al = alist();
+ if (al) {
+ return al->automation_state() != Play;
+ }
+ return true;
+}
-float
+/** Get the current effective `user' value based on automation state */
+double
AutomationControl::get_value() const
{
- bool from_list = _list && ((AutomationList*)_list.get())->automation_playback();
- return Control::get_float(from_list, _session.transport_frame());
+ bool from_list = alist() && alist()->automation_playback();
+ return Control::get_double (from_list, _session.transport_sample());
+}
+
+double
+AutomationControl::get_save_value() const
+{
+ /* save user-value, not incl masters */
+ return Control::get_double ();
}
+void
+AutomationControl::pre_realtime_queue_stuff (double val, PBD::Controllable::GroupControlDisposition gcd)
+{
+ if (_group && _group->use_me (gcd)) {
+ _group->pre_realtime_queue_stuff (val);
+ } else {
+ do_pre_realtime_queue_stuff (val);
+ }
+}
void
-AutomationControl::set_value(float value)
+AutomationControl::set_value (double val, PBD::Controllable::GroupControlDisposition gcd)
+{
+ if (!writable()) {
+ return;
+ }
+
+ /* enforce strict double/boolean value mapping */
+
+ if (_desc.toggled) {
+ if (val != 0.0) {
+ val = 1.0;
+ }
+ }
+
+ if (check_rt (val, gcd)) {
+ /* change has been queued to take place in an RT context */
+ return;
+ }
+
+ if (_group && _group->use_me (gcd)) {
+ _group->set_group_value (shared_from_this(), val);
+ } else {
+ actually_set_value (val, gcd);
+ }
+}
+
+ControlList
+AutomationControl::grouped_controls () const
{
- bool to_list = _list && _session.transport_stopped()
- && ((AutomationList*)_list.get())->automation_write();
+ if (_group && _group->use_me (PBD::Controllable::UseGroup)) {
+ return _group->controls ();
+ } else {
+ return ControlList ();
+ }
+}
- Control::set_float(value, to_list, _session.transport_frame());
+void
+AutomationControl::automation_run (samplepos_t start, pframes_t nframes)
+{
+ if (!automation_playback ()) {
+ return;
+ }
- Changed(); /* EMIT SIGNAL */
+ assert (_list);
+ bool valid = false;
+ double val = _list->rt_safe_eval (start, valid);
+ if (!valid) {
+ return;
+ }
+ if (toggled ()) {
+ const double thresh = .5 * (_desc.upper - _desc.lower);
+ set_value_unchecked (val >= thresh ? _desc.upper : _desc.lower);
+ } else {
+ set_value_unchecked (val);
+ }
}
+/** Set the value and do the right thing based on automation state
+ * (e.g. record if necessary, etc.)
+ * @param value `user' value
+ */
+void
+AutomationControl::actually_set_value (double value, PBD::Controllable::GroupControlDisposition gcd)
+{
+ boost::shared_ptr<AutomationList> al = alist ();
+ const samplepos_t pos = _session.transport_sample();
+ bool to_list;
+
+ /* We cannot use ::get_value() here since that is virtual, and intended
+ to return a scalar value that in some way reflects the state of the
+ control (with semantics defined by the control itself, since it's
+ internal state may be more complex than can be fully represented by
+ a single scalar).
+
+ This method's only job is to set the "user_double()" value of the
+ underlying Evoral::Control object, and so we should compare the new
+ value we're being given to the current user_double().
+
+ Unless ... we're doing automation playback, in which case the
+ current effective value of the control (used to determine if
+ anything has changed) is the one derived from the automation event
+ list.
+ */
+ float old_value = Control::user_double();
+
+ if (al && al->automation_write ()) {
+ to_list = true;
+ } else {
+ to_list = false;
+ }
+
+ Control::set_double (value, pos, to_list);
+
+ if (old_value != (float)value) {
+#if 0
+ AutomationType at = (AutomationType) _parameter.type();
+ std::cerr << "++++ Changed (" << enum_2_string (at) << ", " << enum_2_string (gcd) << ") = " << value
+ << " (was " << old_value << ") @ " << this << std::endl;
+#endif
+
+ Changed (true, gcd);
+ if (!al || !al->automation_playback ()) {
+ _session.set_dirty ();
+ }
+ }
+}
void
-AutomationControl::set_list(boost::shared_ptr<Evoral::ControlList> list)
+AutomationControl::set_list (boost::shared_ptr<Evoral::ControlList> list)
{
- Control::set_list(list);
- Changed(); /* EMIT SIGNAL */
+ Control::set_list (list);
+ Changed (true, Controllable::NoGroup);
}
+void
+AutomationControl::set_automation_state (AutoState as)
+{
+ if (flags() & NotAutomatable) {
+ return;
+ }
+ if (alist() && as != alist()->automation_state()) {
+
+ const double val = get_value ();
+
+ alist()->set_automation_state (as);
+ if (_desc.toggled) {
+ Changed (false, Controllable::NoGroup); // notify slaves, update boolean masters
+ return; // No watch for boolean automation
+ }
+
+ if (as == Write) {
+ AutomationWatch::instance().add_automation_watch (shared_from_this());
+ } else if (as & (Touch | Latch)) {
+ if (alist()->empty()) {
+ Control::set_double (val, _session.current_start_sample (), true);
+ Control::set_double (val, _session.current_end_sample (), true);
+ Changed (true, Controllable::NoGroup);
+ }
+ if (!touching()) {
+ AutomationWatch::instance().remove_automation_watch (shared_from_this());
+ } else {
+ /* this seems unlikely, but the combination of
+ * a control surface and the mouse could make
+ * it possible to put the control into Touch
+ * mode *while* touching it.
+ */
+ AutomationWatch::instance().add_automation_watch (shared_from_this());
+ }
+ } else {
+ AutomationWatch::instance().remove_automation_watch (shared_from_this());
+ Changed (false, Controllable::NoGroup);
+ }
+ }
+}
+
+void
+AutomationControl::start_touch (double when)
+{
+ if (!_list || touching ()) {
+ return;
+ }
+
+ if (alist()->automation_state() & (Touch | Latch)) {
+ /* subtle. aligns the user value with the playback and
+ * use take actual value (incl masters).
+ *
+ * Touch + hold writes inverse curve of master-automation
+ * using AutomationWatch::timer ()
+ */
+ AutomationControl::actually_set_value (get_value (), Controllable::NoGroup);
+ alist()->start_touch (when);
+ if (!_desc.toggled) {
+ AutomationWatch::instance().add_automation_watch (shared_from_this());
+ }
+ set_touching (true);
+ }
+}
+
+void
+AutomationControl::stop_touch (double when)
+{
+ if (!_list || !touching ()) {
+ return;
+ }
+
+ if (alist()->automation_state() == Latch && _session.transport_rolling ()) {
+ return;
+ }
+
+ set_touching (false);
+
+ if (alist()->automation_state() & (Touch | Latch)) {
+ alist()->stop_touch (when);
+ if (!_desc.toggled) {
+ AutomationWatch::instance().remove_automation_watch (shared_from_this());
+ }
+ }
+}
+
+void
+AutomationControl::commit_transaction (bool did_write)
+{
+ if (did_write) {
+ XMLNode* before = alist ()->before ();
+ if (before) {
+ _session.begin_reversible_command (string_compose (_("record %1 automation"), name ()));
+ _session.commit_reversible_command (alist ()->memento_command (before, &alist ()->get_state ()));
+ }
+ } else {
+ alist ()->clear_history ();
+ }
+}
+
+/* take control-value and return UI range [0..1] */
+double
+AutomationControl::internal_to_interface (double val) const
+{
+ // XXX maybe optimize. _desc.from_interface() has
+ // a switch-statement depending on AutomationType.
+ return _desc.to_interface (val);
+}
+
+/* map GUI range [0..1] to control-value */
+double
+AutomationControl::interface_to_internal (double val) const
+{
+ if (!isfinite_local (val)) {
+ assert (0);
+ val = 0;
+ }
+ // XXX maybe optimize. see above.
+ return _desc.from_interface (val);
+}
+
+std::string
+AutomationControl::get_user_string () const
+{
+ return ARDOUR::value_as_string (_desc, get_value());
+}
+
+void
+AutomationControl::set_group (boost::shared_ptr<ControlGroup> cg)
+{
+ /* this method can only be called by a ControlGroup. We do not need
+ to ensure consistency by calling ControlGroup::remove_control(),
+ since we are guaranteed that the ControlGroup will take care of that
+ for us.
+ */
+
+ _group = cg;
+}
+
+bool
+AutomationControl::check_rt (double val, Controllable::GroupControlDisposition gcd)
+{
+ if (!_session.loading() && (flags() & Controllable::RealTime) && !AudioEngine::instance()->in_process_thread()) {
+ /* queue change in RT context */
+ _session.set_control (shared_from_this(), val, gcd);
+ return true;
+ }
+
+ return false;
+}
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