2 Copyright (C) 2002 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "ardour/automation_list.h"
27 #include "ardour/beats_frames_converter.h"
28 #include "ardour/event_type_map.h"
29 #include "ardour/parameter_descriptor.h"
30 #include "ardour/parameter_types.h"
31 #include "ardour/evoral_types_convert.h"
32 #include "ardour/types_convert.h"
33 #include "evoral/Curve.hpp"
34 #include "pbd/memento_command.h"
35 #include "pbd/stacktrace.h"
36 #include "pbd/enumwriter.h"
37 #include "pbd/types_convert.h"
42 using namespace ARDOUR;
45 PBD::Signal1<void,AutomationList *> AutomationList::AutomationListCreated;
48 static void dumpit (const AutomationList& al, string prefix = "")
50 cerr << prefix << &al << endl;
51 for (AutomationList::const_iterator i = al.begin(); i != al.end(); ++i) {
52 cerr << prefix << '\t' << (*i)->when << ',' << (*i)->value << endl;
57 AutomationList::AutomationList (const Evoral::Parameter& id, const Evoral::ParameterDescriptor& desc)
58 : ControlList(id, desc)
62 g_atomic_int_set (&_touching, 0);
63 _interpolation = default_interpolation ();
65 create_curve_if_necessary();
67 assert(_parameter.type() != NullAutomation);
68 AutomationListCreated(this);
71 AutomationList::AutomationList (const Evoral::Parameter& id)
72 : ControlList(id, ARDOUR::ParameterDescriptor(id))
76 g_atomic_int_set (&_touching, 0);
77 _interpolation = default_interpolation ();
79 create_curve_if_necessary();
81 assert(_parameter.type() != NullAutomation);
82 AutomationListCreated(this);
85 AutomationList::AutomationList (const AutomationList& other)
87 , StatefulDestructible()
90 _state = other._state;
91 g_atomic_int_set (&_touching, other.touching());
93 create_curve_if_necessary();
95 assert(_parameter.type() != NullAutomation);
96 AutomationListCreated(this);
99 AutomationList::AutomationList (const AutomationList& other, double start, double end)
100 : ControlList(other, start, end)
103 _state = other._state;
104 g_atomic_int_set (&_touching, other.touching());
106 create_curve_if_necessary();
108 assert(_parameter.type() != NullAutomation);
109 AutomationListCreated(this);
112 /** @param id is used for legacy sessions where the type is not present
113 * in or below the AutomationList node. It is used if @param id is non-null.
115 AutomationList::AutomationList (const XMLNode& node, Evoral::Parameter id)
116 : ControlList(id, ARDOUR::ParameterDescriptor(id))
119 g_atomic_int_set (&_touching, 0);
120 _interpolation = default_interpolation ();
123 set_state (node, Stateful::loading_state_version);
129 create_curve_if_necessary();
131 assert(_parameter.type() != NullAutomation);
132 AutomationListCreated(this);
135 AutomationList::~AutomationList()
140 boost::shared_ptr<Evoral::ControlList>
141 AutomationList::create(const Evoral::Parameter& id,
142 const Evoral::ParameterDescriptor& desc)
144 return boost::shared_ptr<Evoral::ControlList>(new AutomationList(id, desc));
148 AutomationList::create_curve_if_necessary()
150 switch (_parameter.type()) {
153 case PanAzimuthAutomation:
154 case PanElevationAutomation:
155 case PanWidthAutomation:
156 case FadeInAutomation:
157 case FadeOutAutomation:
158 case EnvelopeAutomation:
167 AutomationList::operator= (const AutomationList& other)
169 if (this != &other) {
170 ControlList::freeze ();
171 /* ControlList::operator= calls copy_events() which calls
172 * mark_dirty() and maybe_signal_changed()
174 ControlList::operator= (other);
175 _state = other._state;
176 _touching = other._touching;
177 ControlList::thaw ();
184 AutomationList::maybe_signal_changed ()
186 ControlList::maybe_signal_changed ();
188 if (!ControlList::frozen()) {
189 StateChanged (); /* EMIT SIGNAL */
194 AutomationList::set_automation_state (AutoState s)
199 if (s == Write && _desc.toggled) {
200 _before = &get_state ();
204 automation_state_changed (s); /* EMIT SIGNAL */
208 Evoral::ControlList::InterpolationStyle
209 AutomationList::default_interpolation () const
211 switch (_parameter.type()) {
214 case EnvelopeAutomation:
215 #ifndef XXX_NEW_INTERPOLATON__BREAK_SESSION_FORMAT_XXX
216 /* use old, wrong linear gain interpolation */
217 return ControlList::Linear;
219 return ControlList::Exponential;
222 return ControlList::Logarithmic;
227 /* based on Evoral::ParameterDescriptor log,toggle,.. */
228 return ControlList::default_interpolation ();
232 AutomationList::start_write_pass (double when)
235 if (in_new_write_pass ()) {
236 _before = &get_state ();
240 ControlList::start_write_pass (when);
244 AutomationList::write_pass_finished (double when, double thinning_factor)
246 ControlList::write_pass_finished (when, thinning_factor);
250 AutomationList::start_touch (double when)
252 if (_state == Touch) {
253 start_write_pass (when);
256 g_atomic_int_set (&_touching, 1);
260 AutomationList::stop_touch (double)
262 if (g_atomic_int_get (&_touching) == 0) {
263 /* this touch has already been stopped (probably by Automatable::transport_stopped),
264 so we've nothing to do.
269 g_atomic_int_set (&_touching, 0);
272 /* _before may be owned by the undo stack,
273 * so we have to be careful about doing this.
275 * ::before () transfers ownership, setting _before to 0
278 AutomationList::clear_history ()
285 AutomationList::thaw ()
289 if (_changed_when_thawed) {
290 _changed_when_thawed = false;
291 StateChanged(); /* EMIT SIGNAL */
296 AutomationList::paste (const ControlList& alist, double pos, DoubleBeatsFramesConverter const& bfc)
298 AutomationType src_type = (AutomationType)alist.parameter().type();
299 AutomationType dst_type = (AutomationType)_parameter.type();
301 if (parameter_is_midi (src_type) == parameter_is_midi (dst_type)) {
302 return ControlList::paste (alist, pos);
304 bool to_frame = parameter_is_midi (src_type);
306 ControlList cl (alist);
308 for (const_iterator i = alist.begin ();i != alist.end (); ++i) {
309 double when = (*i)->when;
311 when = bfc.to ((*i)->when);
313 when = bfc.from ((*i)->when);
315 cl.fast_simple_add (when, (*i)->value);
317 return ControlList::paste (cl, pos);
321 AutomationList::memento_command (XMLNode* before, XMLNode* after)
323 return new MementoCommand<AutomationList> (*this, before, after);
327 AutomationList::get_state ()
333 AutomationList::state (bool full)
335 XMLNode* root = new XMLNode (X_("AutomationList"));
337 root->set_property ("automation-id", EventTypeMap::instance().to_symbol(_parameter));
338 root->set_property ("id", id());
340 #ifndef XXX_NEW_INTERPOLATON__BREAK_SESSION_FORMAT_XXX
341 /* force new enums to existing ones in session-file */
342 Evoral::ControlList::InterpolationStyle is = _interpolation;
344 case ControlList::Exponential:
345 case ControlList::Logarithmic:
346 is = ControlList::Linear;
351 root->set_property ("interpolation-style", is);
353 root->set_property ("interpolation-style", _interpolation);
357 /* never serialize state with Write enabled - too dangerous
360 if (_state != Write) {
361 root->set_property ("state", _state);
363 if (_events.empty ()) {
364 root->set_property ("state", Off);
366 root->set_property ("state", Touch);
370 /* never save anything but Off for automation state to a template */
371 root->set_property ("state", Off);
374 if (!_events.empty()) {
375 root->add_child_nocopy (serialize_events());
382 AutomationList::serialize_events ()
384 XMLNode* node = new XMLNode (X_("events"));
387 for (iterator xx = _events.begin(); xx != _events.end(); ++xx) {
388 str << PBD::to_string ((*xx)->when);
390 str << PBD::to_string ((*xx)->value);
394 /* XML is a bit wierd */
396 XMLNode* content_node = new XMLNode (X_("foo")); /* it gets renamed by libxml when we set content */
397 content_node->set_content (str.str());
399 node->add_child_nocopy (*content_node);
405 AutomationList::deserialize_events (const XMLNode& node)
407 if (node.children().empty()) {
411 XMLNode* content_node = node.children().front();
413 if (content_node->content().empty()) {
417 ControlList::freeze ();
420 stringstream str (content_node->content());
430 if (!str || !PBD::string_to<double> (x_str, x)) {
434 if (!str || !PBD::string_to<double> (y_str, y)) {
438 y = std::min ((double)_desc.upper, std::max ((double)_desc.lower, y));
439 fast_simple_add (x, y);
444 error << _("automation list: cannot load coordinates from XML, all points ignored") << endmsg;
447 maybe_signal_changed ();
456 AutomationList::set_state (const XMLNode& node, int version)
458 XMLNodeList nlist = node.children();
460 XMLNodeIterator niter;
462 if (node.name() == X_("events")) {
463 /* partial state setting*/
464 return deserialize_events (node);
467 if (node.name() == X_("Envelope") || node.name() == X_("FadeOut") || node.name() == X_("FadeIn")) {
469 if ((nsos = node.child (X_("AutomationList")))) {
470 /* new school in old school clothing */
471 return set_state (*nsos, version);
476 const XMLNodeList& elist = node.children();
477 XMLNodeConstIterator i;
479 ControlList::freeze ();
482 for (i = elist.begin(); i != elist.end(); ++i) {
485 if (!(*i)->get_property ("x", x)) {
486 error << _("automation list: no x-coordinate stored for control point (point ignored)") << endmsg;
491 if (!(*i)->get_property ("y", y)) {
492 error << _("automation list: no y-coordinate stored for control point (point ignored)") << endmsg;
496 y = std::min ((double)_desc.upper, std::max ((double)_desc.lower, y));
497 fast_simple_add (x, y);
505 if (node.name() != X_("AutomationList") ) {
506 error << string_compose (_("AutomationList: passed XML node called %1, not \"AutomationList\" - ignored"), node.name()) << endmsg;
511 /* update session AL list */
512 AutomationListCreated(this);
516 if (node.get_property (X_("automation-id"), value)) {
517 _parameter = EventTypeMap::instance().from_symbol(value);
519 warning << "Legacy session: automation list has no automation-id property." << endmsg;
522 if (!node.get_property (X_("interpolation-style"), _interpolation)) {
523 _interpolation = default_interpolation ();
525 #ifndef XXX_NEW_INTERPOLATON__BREAK_SESSION_FORMAT_XXX
526 /* internally force logarithmic and Trim params to use Log-scale */
527 if (_desc.logarithmic || _parameter.type() == TrimAutomation) {
528 _interpolation = ControlList::Logarithmic;
532 if (node.get_property (X_("state"), _state)) {
533 if (_state == Write) {
536 automation_state_changed (_state);
541 bool have_events = false;
543 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
544 if ((*niter)->name() == X_("events")) {
545 deserialize_events (*(*niter));
551 /* there was no Events child node; clear any current events */
555 maybe_signal_changed ();
563 AutomationList::operator!= (AutomationList const & other) const
566 static_cast<ControlList const &> (*this) != static_cast<ControlList const &> (other) ||
567 _state != other._state ||
568 _touching != other._touching
573 AutomationListProperty::clone () const
575 return new AutomationListProperty (
577 boost::shared_ptr<AutomationList> (new AutomationList (*this->_old.get())),
578 boost::shared_ptr<AutomationList> (new AutomationList (*this->_current.get()))