Add option to limit automatable control parmaters
[ardour.git] / libs / ardour / automation_list.cc
index 3cf3d6af8bf6f65cb0629e56462492acb615678d..cb09786c649f448b20ce948c66d0427ef74bbc01 100644 (file)
 #include <sstream>
 #include <algorithm>
 #include "ardour/automation_list.h"
+#include "ardour/beats_samples_converter.h"
 #include "ardour/event_type_map.h"
 #include "ardour/parameter_descriptor.h"
+#include "ardour/parameter_types.h"
+#include "ardour/evoral_types_convert.h"
+#include "ardour/types_convert.h"
 #include "evoral/Curve.hpp"
+#include "pbd/memento_command.h"
 #include "pbd/stacktrace.h"
 #include "pbd/enumwriter.h"
+#include "pbd/types_convert.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace ARDOUR;
@@ -50,10 +56,11 @@ static void dumpit (const AutomationList& al, string prefix = "")
 #endif
 AutomationList::AutomationList (const Evoral::Parameter& id, const Evoral::ParameterDescriptor& desc)
        : ControlList(id, desc)
+       , _before (0)
 {
        _state = Off;
-       _style = Absolute;
        g_atomic_int_set (&_touching, 0);
+       _interpolation = default_interpolation ();
 
        create_curve_if_necessary();
 
@@ -63,10 +70,11 @@ AutomationList::AutomationList (const Evoral::Parameter& id, const Evoral::Param
 
 AutomationList::AutomationList (const Evoral::Parameter& id)
        : ControlList(id, ARDOUR::ParameterDescriptor(id))
+       , _before (0)
 {
        _state = Off;
-       _style = Absolute;
        g_atomic_int_set (&_touching, 0);
+       _interpolation = default_interpolation ();
 
        create_curve_if_necessary();
 
@@ -75,10 +83,10 @@ AutomationList::AutomationList (const Evoral::Parameter& id)
 }
 
 AutomationList::AutomationList (const AutomationList& other)
-       : StatefulDestructible()
-       , ControlList(other)
+       : ControlList(other)
+       , StatefulDestructible()
+       , _before (0)
 {
-       _style = other._style;
        _state = other._state;
        g_atomic_int_set (&_touching, other.touching());
 
@@ -90,8 +98,8 @@ AutomationList::AutomationList (const AutomationList& other)
 
 AutomationList::AutomationList (const AutomationList& other, double start, double end)
        : ControlList(other, start, end)
+       , _before (0)
 {
-       _style = other._style;
        _state = other._state;
        g_atomic_int_set (&_touching, other.touching());
 
@@ -106,10 +114,11 @@ AutomationList::AutomationList (const AutomationList& other, double start, doubl
  */
 AutomationList::AutomationList (const XMLNode& node, Evoral::Parameter id)
        : ControlList(id, ARDOUR::ParameterDescriptor(id))
+       , _before (0)
 {
        g_atomic_int_set (&_touching, 0);
+       _interpolation = default_interpolation ();
        _state = Off;
-       _style = Absolute;
 
        set_state (node, Stateful::loading_state_version);
 
@@ -125,6 +134,7 @@ AutomationList::AutomationList (const XMLNode& node, Evoral::Parameter id)
 
 AutomationList::~AutomationList()
 {
+       delete _before;
 }
 
 boost::shared_ptr<Evoral::ControlList>
@@ -151,21 +161,22 @@ AutomationList::create_curve_if_necessary()
        default:
                break;
        }
+
+       WritePassStarted.connect_same_thread (_writepass_connection, boost::bind (&AutomationList::snapshot_history, this, false));
 }
 
 AutomationList&
 AutomationList::operator= (const AutomationList& other)
 {
        if (this != &other) {
-
-
+               ControlList::freeze ();
+               /* ControlList::operator= calls copy_events() which calls
+                * mark_dirty() and maybe_signal_changed()
+                */
                ControlList::operator= (other);
                _state = other._state;
-               _style = other._style;
                _touching = other._touching;
-
-               mark_dirty ();
-               maybe_signal_changed ();
+               ControlList::thaw ();
        }
 
        return *this;
@@ -181,36 +192,75 @@ AutomationList::maybe_signal_changed ()
        }
 }
 
+AutoState
+AutomationList::automation_state() const
+{
+       Glib::Threads::RWLock::ReaderLock lm (Evoral::ControlList::_lock);
+       return _state;
+}
+
 void
 AutomationList::set_automation_state (AutoState s)
 {
-       if (s != _state) {
+       {
+               Glib::Threads::RWLock::ReaderLock lm (Evoral::ControlList::_lock);
+
+               if (s == _state) {
+                       return;
+               }
                _state = s;
-               automation_state_changed (s); /* EMIT SIGNAL */
+               if (s == Write && _desc.toggled) {
+                       snapshot_history (true);
+               }
        }
+
+       automation_state_changed (s); /* EMIT SIGNAL */
 }
 
-void
-AutomationList::set_automation_style (AutoStyle s)
+Evoral::ControlList::InterpolationStyle
+AutomationList::default_interpolation () const
 {
-       if (s != _style) {
-               _style = s;
-               automation_style_changed (); /* EMIT SIGNAL */
+       switch (_parameter.type()) {
+               case GainAutomation:
+               case BusSendLevel:
+               case EnvelopeAutomation:
+                       return ControlList::Exponential;
+                       break;
+               case TrimAutomation:
+                       return ControlList::Logarithmic;
+                       break;
+               default:
+                       break;
        }
+       /* based on Evoral::ParameterDescriptor log,toggle,.. */
+       return ControlList::default_interpolation ();
+}
+
+void
+AutomationList::start_write_pass (double when)
+{
+       snapshot_history (true);
+       ControlList::start_write_pass (when);
+}
+
+void
+AutomationList::write_pass_finished (double when, double thinning_factor)
+{
+       ControlList::write_pass_finished (when, thinning_factor);
 }
 
 void
 AutomationList::start_touch (double when)
 {
-        if (_state == Touch) {
+       if (_state == Touch) {
                start_write_pass (when);
-        }
+       }
 
        g_atomic_int_set (&_touching, 1);
 }
 
 void
-AutomationList::stop_touch (bool mark, double)
+AutomationList::stop_touch (double)
 {
        if (g_atomic_int_get (&_touching) == 0) {
                /* this touch has already been stopped (probably by Automatable::transport_stopped),
@@ -220,18 +270,31 @@ AutomationList::stop_touch (bool mark, double)
        }
 
        g_atomic_int_set (&_touching, 0);
+}
 
-        if (_state == Touch) {
+/* _before may be owned by the undo stack,
+ * so we have to be careful about doing this.
+ *
+ * ::before () transfers ownership, setting _before to 0
+ */
+void
+AutomationList::clear_history ()
+{
+       delete _before;
+       _before = 0;
+}
 
-                if (mark) {
-                       
-                       /* XXX need to mark the last added point with the
-                        * current time
-                        */
-                }
-        }
+void
+AutomationList::snapshot_history (bool need_lock)
+{
+       if (!in_new_write_pass ()) {
+               return;
+       }
+       delete _before;
+       _before = &state (true, need_lock);
 }
 
+
 void
 AutomationList::thaw ()
 {
@@ -243,71 +306,91 @@ AutomationList::thaw ()
        }
 }
 
+bool
+AutomationList::paste (const ControlList& alist, double pos, DoubleBeatsSamplesConverter const& bfc)
+{
+       AutomationType src_type = (AutomationType)alist.parameter().type();
+       AutomationType dst_type = (AutomationType)_parameter.type();
+
+       if (parameter_is_midi (src_type) == parameter_is_midi (dst_type)) {
+               return ControlList::paste (alist, pos);
+       }
+       bool to_sample = parameter_is_midi (src_type);
+
+       ControlList cl (alist);
+       cl.clear ();
+       for (const_iterator i = alist.begin ();i != alist.end (); ++i) {
+               double when = (*i)->when;
+               if (to_sample) {
+                       when = bfc.to ((*i)->when);
+               } else {
+                       when = bfc.from ((*i)->when);
+               }
+               cl.fast_simple_add (when, (*i)->value);
+       }
+       return ControlList::paste (cl, pos);
+}
+
+Command*
+AutomationList::memento_command (XMLNode* before, XMLNode* after)
+{
+       return new MementoCommand<AutomationList> (*this, before, after);
+}
+
 XMLNode&
 AutomationList::get_state ()
 {
-       return state (true);
+       return state (true, true);
 }
 
 XMLNode&
-AutomationList::state (bool full)
+AutomationList::state (bool save_auto_state, bool need_lock)
 {
        XMLNode* root = new XMLNode (X_("AutomationList"));
-       char buf[64];
-       LocaleGuard lg (X_("C"));
-
-       root->add_property ("automation-id", EventTypeMap::instance().to_symbol(_parameter));
 
-       root->add_property ("id", id().to_s());
+       root->set_property ("automation-id", EventTypeMap::instance().to_symbol(_parameter));
+       root->set_property ("id", id());
+       root->set_property ("interpolation-style", _interpolation);
 
-       snprintf (buf, sizeof (buf), "%.12g", _default_value);
-       root->add_property ("default", buf);
-       snprintf (buf, sizeof (buf), "%.12g", _min_yval);
-       root->add_property ("min-yval", buf);
-       snprintf (buf, sizeof (buf), "%.12g", _max_yval);
-       root->add_property ("max-yval", buf);
-
-       root->add_property ("interpolation-style", enum_2_string (_interpolation));
-
-       if (full) {
-                /* never serialize state with Write enabled - too dangerous
-                   for the user's data
-                */
-                if (_state != Write) {
-                        root->add_property ("state", auto_state_to_string (_state));
-                } else {
+       if (save_auto_state) {
+               /* never serialize state with Write enabled - too dangerous
+                  for the user's data
+               */
+               if (_state != Write) {
+                       root->set_property ("state", _state);
+               } else {
                        if (_events.empty ()) {
-                               root->add_property ("state", auto_state_to_string (Off));
+                               root->set_property ("state", Off);
                        } else {
-                               root->add_property ("state", auto_state_to_string (Touch));
+                               root->set_property ("state", Touch);
                        }
-                }
+               }
        } else {
                /* never save anything but Off for automation state to a template */
-               root->add_property ("state", auto_state_to_string (Off));
+               root->set_property ("state", Off);
        }
 
-       root->add_property ("style", auto_style_to_string (_style));
-
        if (!_events.empty()) {
-               root->add_child_nocopy (serialize_events());
+               root->add_child_nocopy (serialize_events (need_lock));
        }
 
        return *root;
 }
 
 XMLNode&
-AutomationList::serialize_events ()
+AutomationList::serialize_events (bool need_lock)
 {
        XMLNode* node = new XMLNode (X_("events"));
        stringstream str;
 
-       str.precision(15);  //10 digits is enough digits for 24 hours at 96kHz
-
+       Glib::Threads::RWLock::ReaderLock lm (Evoral::ControlList::_lock, Glib::Threads::NOT_LOCK);
+       if (need_lock) {
+               lm.acquire ();
+       }
        for (iterator xx = _events.begin(); xx != _events.end(); ++xx) {
-               str << (double) (*xx)->when;
+               str << PBD::to_string ((*xx)->when);
                str << ' ';
-               str <<(double) (*xx)->value;
+               str << PBD::to_string ((*xx)->value);
                str << '\n';
        }
 
@@ -339,20 +422,23 @@ AutomationList::deserialize_events (const XMLNode& node)
 
        stringstream str (content_node->content());
 
+       std::string x_str;
+       std::string y_str;
        double x;
        double y;
        bool ok = true;
 
        while (str) {
-               str >> x;
-               if (!str) {
+               str >> x_str;
+               if (!str || !PBD::string_to<double> (x_str, x)) {
                        break;
                }
-               str >> y;
-               if (!str) {
+               str >> y_str;
+               if (!str || !PBD::string_to<double> (y_str, y)) {
                        ok = false;
                        break;
                }
+               y = std::min ((double)_desc.upper, std::max ((double)_desc.lower, y));
                fast_simple_add (x, y);
        }
 
@@ -372,11 +458,9 @@ AutomationList::deserialize_events (const XMLNode& node)
 int
 AutomationList::set_state (const XMLNode& node, int version)
 {
-       LocaleGuard lg (X_("C"));
        XMLNodeList nlist = node.children();
        XMLNode* nsos;
        XMLNodeIterator niter;
-       const XMLProperty* prop;
 
        if (node.name() == X_("events")) {
                /* partial state setting*/
@@ -394,27 +478,25 @@ AutomationList::set_state (const XMLNode& node, int version)
 
                const XMLNodeList& elist = node.children();
                XMLNodeConstIterator i;
-               XMLProperty* prop;
-               pframes_t x;
-               double y;
 
-                ControlList::freeze ();
+               ControlList::freeze ();
                clear ();
 
                for (i = elist.begin(); i != elist.end(); ++i) {
 
-                       if ((prop = (*i)->property ("x")) == 0) {
+                       pframes_t x;
+                       if (!(*i)->get_property ("x", x)) {
                                error << _("automation list: no x-coordinate stored for control point (point ignored)") << endmsg;
                                continue;
                        }
-                       x = atoi (prop->value().c_str());
 
-                       if ((prop = (*i)->property ("y")) == 0) {
+                       double y;
+                       if (!(*i)->get_property ("y", y)) {
                                error << _("automation list: no y-coordinate stored for control point (point ignored)") << endmsg;
                                continue;
                        }
-                       y = atof (prop->value().c_str());
 
+                       y = std::min ((double)_desc.upper, std::max ((double)_desc.lower, y));
                        fast_simple_add (x, y);
                }
 
@@ -433,52 +515,26 @@ AutomationList::set_state (const XMLNode& node, int version)
                AutomationListCreated(this);
        }
 
-       if ((prop = node.property (X_("automation-id"))) != 0){
-               _parameter = EventTypeMap::instance().from_symbol(prop->value());
+       std::string value;
+       if (node.get_property (X_("automation-id"), value)) {
+               _parameter = EventTypeMap::instance().from_symbol(value);
        } else {
                warning << "Legacy session: automation list has no automation-id property." << endmsg;
        }
 
-       if ((prop = node.property (X_("interpolation-style"))) != 0) {
-               _interpolation = (InterpolationStyle)string_2_enum(prop->value(), _interpolation);
-       } else {
-               _interpolation = Linear;
+       if (!node.get_property (X_("interpolation-style"), _interpolation)) {
+               _interpolation = default_interpolation ();
        }
 
-       if ((prop = node.property (X_("default"))) != 0){
-               _default_value = atof (prop->value().c_str());
-       } else {
-               _default_value = 0.0;
-       }
-
-       if ((prop = node.property (X_("style"))) != 0) {
-               _style = string_to_auto_style (prop->value());
-       } else {
-               _style = Absolute;
-       }
-
-       if ((prop = node.property (X_("state"))) != 0) {
-               _state = string_to_auto_state (prop->value());
-                if (_state == Write) {
-                        _state = Off;
-                }
-               automation_state_changed(_state);
+       if (node.get_property (X_("state"), _state)) {
+               if (_state == Write) {
+                       _state = Off;
+               }
+               automation_state_changed (_state);
        } else {
                _state = Off;
        }
 
-       if ((prop = node.property (X_("min-yval"))) != 0) {
-               _min_yval = atof (prop->value ().c_str());
-       } else {
-               _min_yval = FLT_MIN;
-       }
-
-       if ((prop = node.property (X_("max-yval"))) != 0) {
-               _max_yval = atof (prop->value ().c_str());
-       } else {
-               _max_yval = FLT_MAX;
-       }
-
        bool have_events = false;
 
        for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
@@ -506,7 +562,6 @@ AutomationList::operator!= (AutomationList const & other) const
        return (
                static_cast<ControlList const &> (*this) != static_cast<ControlList const &> (other) ||
                _state != other._state ||
-               _style != other._style ||
                _touching != other._touching
                );
 }
@@ -520,4 +575,3 @@ AutomationListProperty::clone () const
                boost::shared_ptr<AutomationList> (new AutomationList (*this->_current.get()))
                );
 }
-