#define __libardour_slavable_automation_control_h__
#include "pbd/enumwriter.h"
+#include "pbd/error.h"
+#include "pbd/types_convert.h"
+#include "pbd/i18n.h"
+#include "evoral/Curve.hpp"
+
+#include "ardour/audioengine.h"
#include "ardour/slavable_automation_control.h"
#include "ardour/session.h"
const std::string& name,
Controllable::Flag flags)
: AutomationControl (s, parameter, desc, l, name, flags)
+ , _masters_node (0)
+{
+}
+
+SlavableAutomationControl::~SlavableAutomationControl ()
{
+ if (_masters_node) {
+ delete _masters_node;
+ _masters_node = 0;
+ }
}
double
SlavableAutomationControl::get_masters_value_locked () const
{
- double v = _desc.normal;
if (_desc.toggled) {
for (Masters::const_iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
}
}
return _desc.lower;
- }
+ } else {
- for (Masters::const_iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
- /* get current master value, scale by our current ratio with that master */
- v *= mr->second.master()->get_value () * mr->second.ratio();
- }
+ double v = 1.0; /* the masters function as a scaling factor */
+
+ for (Masters::const_iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
+ v *= mr->second.master()->get_value ();
+ }
- return min ((double) _desc.upper, v);
+ return v;
+ }
}
double
}
}
- return get_masters_value_locked ();
+ return Control::get_double() * get_masters_value_locked ();
}
/** Get the current effective `user' value based on automation state */
{
bool from_list = _list && boost::dynamic_pointer_cast<AutomationList>(_list)->automation_playback();
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
if (!from_list) {
- Glib::Threads::RWLock::ReaderLock lm (master_lock);
return get_value_locked ();
} else {
- return Control::get_double (from_list, _session.transport_frame());
+ return Control::get_double (true, _session.transport_frame()) * get_masters_value_locked();
}
}
+bool
+SlavableAutomationControl::get_masters_curve_locked (framepos_t, framepos_t, float*, framecnt_t) const
+{
+ /* Every AutomationControl needs to implement this as-needed.
+ *
+ * This class also provides some convenient methods which
+ * could be used as defaults here (depending on AutomationType)
+ * e.g. masters_curve_multiply()
+ */
+ return false;
+}
+
+bool
+SlavableAutomationControl::masters_curve_multiply (framepos_t start, framepos_t end, float* vec, framecnt_t veclen) const
+{
+ bool rv = list()->curve().rt_safe_get_vector (start, end, vec, veclen);
+ if (_masters.empty()) {
+ return rv;
+ }
+ gain_t* scratch = _session.scratch_automation_buffer ();
+ for (Masters::const_iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
+ boost::shared_ptr<AutomationControl> ac (mr->second.master());
+ bool got_curve;
+
+ boost::shared_ptr<SlavableAutomationControl> sc
+ = boost::dynamic_pointer_cast<SlavableAutomationControl>(ac);
+ if (sc) {
+ got_curve = sc->get_masters_curve_locked (start, end, scratch, veclen);
+ } else {
+ got_curve = ac->list()->curve().rt_safe_get_vector (start, end, scratch, veclen);
+ }
+ if (got_curve) {
+ // TODO use SSE/AVX methods, e.g. ARDOUR::apply_gain_to_buffer, mix_buffers_no_gain
+ // which works as long as automation _types_ gain_t == ARDOUR::Sample type == float
+ if (!rv) {
+ // TODO optimize this, in case rv is false, direcly use "vec" above.
+ rv = true;
+ memcpy (vec, scratch, sizeof (float) * veclen);
+ } else {
+ for (framecnt_t i = 0; i < veclen; ++i) {
+ vec[i] *= scratch[i];
+ }
+ }
+ } else if (rv) {
+ const float v = get_masters_value ();
+ for (framecnt_t i = 0; i < veclen; ++i) {
+ vec[i] *= v;
+ }
+ }
+ }
+ return rv;
+}
+
void
-SlavableAutomationControl::actually_set_value (double val, Controllable::GroupControlDisposition group_override)
+SlavableAutomationControl::actually_set_value (double value, PBD::Controllable::GroupControlDisposition gcd)
{
- val = std::max (std::min (val, (double)_desc.upper), (double)_desc.lower);
+ if (!_desc.toggled) {
- {
Glib::Threads::RWLock::WriterLock lm (master_lock);
if (!_masters.empty()) {
- recompute_masters_ratios (val);
+ /* need to scale given value by current master's scaling */
+ const double masters_value = get_masters_value_locked();
+ if (masters_value == 0.0) {
+ value = 0.0;
+ } else {
+ value /= masters_value;
+ value = std::max (lower(), std::min(upper(), value));
+ }
}
}
- /* this sets the Evoral::Control::_user_value for us, which will
- be retrieved by AutomationControl::get_value ()
- */
- AutomationControl::actually_set_value (val, group_override);
+ /* this will call Control::set_double() and emit Changed signals as appropriate */
+ AutomationControl::actually_set_value (value, gcd);
}
void
-SlavableAutomationControl::add_master (boost::shared_ptr<AutomationControl> m)
+SlavableAutomationControl::add_master (boost::shared_ptr<AutomationControl> m, bool loading)
{
std::pair<Masters::iterator,bool> res;
{
Glib::Threads::RWLock::WriterLock lm (master_lock);
- const double current_value = get_value_locked ();
-
- /* ratio will be recomputed below */
pair<PBD::ID,MasterRecord> newpair (m->id(), MasterRecord (m, 1.0));
res = _masters.insert (newpair);
if (res.second) {
- recompute_masters_ratios (current_value);
+ if (!loading) {
+
+ if (!_desc.toggled) {
+ const double master_value = m->get_value();
+
+ if (master_value == 0.0) {
+ AutomationControl::set_double (0.0, Controllable::NoGroup);
+ } else {
+ /* scale control's own value by
+ amount that the master will
+ contribute.
+ */
+ AutomationControl::set_double ((Control::get_double() / master_value), Controllable::NoGroup);
+ }
+ }
+ }
/* note that we bind @param m as a weak_ptr<AutomationControl>, thus
avoiding holding a reference to the control in the binding
itself.
*/
-
- m->DropReferences.connect_same_thread (masters_connections, boost::bind (&SlavableAutomationControl::master_going_away, this, boost::weak_ptr<AutomationControl>(m)));
+ assert (masters_connections.find (boost::weak_ptr<AutomationControl>(m)) == masters_connections.end());
+ PBD::ScopedConnection con;
+ m->DropReferences.connect_same_thread (con, boost::bind (&SlavableAutomationControl::master_going_away, this, boost::weak_ptr<AutomationControl>(m)));
+ masters_connections[boost::weak_ptr<AutomationControl>(m)] = con;
/* Store the connection inside the MasterRecord, so
that when we destroy it, the connection is destroyed
and we no longer hear about changes to the
- AutomationControl.
+ AutomationControl.
Note that this also makes it safe to store a
boost::shared_ptr<AutomationControl> in the functor,
- since we know we will destroy the functor when the
+ since we know we will destroy the functor when the
connection is destroyed, which happens when we
disconnect from the master (for any reason).
*/
m->Changed.connect_same_thread (res.first->second.connection, boost::bind (&SlavableAutomationControl::master_changed, this, _1, _2, m));
- cerr << this << enum_2_string ((AutomationType) _parameter.type()) << " now listening to Changed from " << m << endl;
}
}
void
SlavableAutomationControl::remove_master (boost::shared_ptr<AutomationControl> m)
{
- double current_value;
- double new_value;
- bool masters_left;
- Masters::size_type erased = 0;
-
pre_remove_master (m);
{
Glib::Threads::RWLock::WriterLock lm (master_lock);
- current_value = get_value_locked ();
- erased = _masters.erase (m->id());
- if (erased && !_session.deletion_in_progress()) {
- recompute_masters_ratios (current_value);
+
+ masters_connections.erase (boost::weak_ptr<AutomationControl>(m));
+ if (!_masters.erase (m->id())) {
+ return;
+ }
+
+ if (!_session.deletion_in_progress()) {
+
+ const double master_value = m->get_value ();
+
+ if (master_value == 0.0) {
+ /* slave would have been set to 0.0 as well,
+ so just leave it there, and the user can
+ bring it back up. this fits with the
+ "removing a VCA does not change the level" rule.
+ */
+ } else {
+ /* bump up the control's own value by the level
+ of the master that is being removed.
+ */
+ AutomationControl::set_double (AutomationControl::get_double() * master_value, Controllable::NoGroup);
+ }
}
- masters_left = _masters.size ();
- new_value = get_value_locked ();
}
if (_session.deletion_in_progress()) {
return;
}
- if (erased) {
- MasterStatusChange (); /* EMIT SIGNAL */
- }
-
- if (new_value != current_value) {
- if (masters_left == 0) {
- /* no masters left, make sure we keep the same value
- that we had before.
- */
- actually_set_value (current_value, Controllable::UseGroup);
- }
- }
+ MasterStatusChange (); /* EMIT SIGNAL */
/* no need to update boolean masters records, since the MR will have
* been removed already.
had_masters = true;
}
_masters.clear ();
+ masters_connections.clear ();
new_value = get_value_locked ();
}
*/
}
+bool
+SlavableAutomationControl::find_next_event_locked (double now, double end, Evoral::ControlEvent& next_event) const
+{
+ if (_masters.empty()) {
+ return false;
+ }
+ bool rv = false;
+ /* iterate over all masters check their automation lists
+ * for any event between "now" and "end" which is earlier than
+ * next_event.when. If found, set next_event.when and return true.
+ * (see also Automatable::find_next_event)
+ */
+ for (Masters::const_iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
+ boost::shared_ptr<AutomationControl> ac (mr->second.master());
+
+ boost::shared_ptr<SlavableAutomationControl> sc
+ = boost::dynamic_pointer_cast<SlavableAutomationControl>(ac);
+
+ if (sc && sc->find_next_event_locked (now, end, next_event)) {
+ rv = true;
+ }
+
+ Evoral::ControlList::const_iterator i;
+ boost::shared_ptr<const Evoral::ControlList> alist (ac->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;
+ rv = true;
+ }
+ }
+ }
+
+ return rv;
+}
+
bool
SlavableAutomationControl::slaved_to (boost::shared_ptr<AutomationControl> m) const
{
return !_masters.empty();
}
+void
+SlavableAutomationControl::use_saved_master_ratios ()
+{
+ if (!_masters_node) {
+ return;
+ }
+
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
+
+ /* use stored state, do not recompute */
+
+ if (_desc.toggled) {
+
+ XMLNodeList nlist = _masters_node->children();
+ XMLNodeIterator niter;
+
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+ ID id_val;
+ bool yn;
+ if (!(*niter)->get_property (X_("id"), id_val) || !(*niter)->get_property (X_("yn"), yn)) {
+ continue;
+ }
+
+ Masters::iterator mi = _masters.find (id_val);
+ if (mi != _masters.end()) {
+ mi->second.set_yn (yn);
+ }
+ }
+
+ } else {
+
+ }
+
+ delete _masters_node;
+ _masters_node = 0;
+
+ return;
+}
+
+
+XMLNode&
+SlavableAutomationControl::get_state ()
+{
+ XMLNode& node (AutomationControl::get_state());
+
+ /* store VCA master ratios */
+
+ {
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
+
+ if (!_masters.empty()) {
+
+ XMLNode* masters_node = new XMLNode (X_("masters"));
+
+ if (_desc.toggled) {
+ for (Masters::iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
+ XMLNode* mnode = new XMLNode (X_("master"));
+ mnode->set_property (X_("id"), mr->second.master()->id());
+ mnode->set_property (X_("yn"), mr->second.yn());
+ masters_node->add_child_nocopy (*mnode);
+ }
+ } else {
+
+ }
+
+ node.add_child_nocopy (*masters_node);
+ }
+ }
+
+ return node;
+}
+
+int
+SlavableAutomationControl::set_state (XMLNode const& node, int version)
+{
+ XMLNodeList nlist = node.children();
+ XMLNodeIterator niter;
+
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+ if ((*niter)->name() == X_("masters")) {
+ _masters_node = new XMLNode (**niter);
+ }
+ }
+
+ return AutomationControl::set_state (node, version);
+}
+
+
#endif /* __libardour_slavable_automation_control_h__ */
projects / ardour.git / blobdiff