#define __ardour_slavable_automation_control_h__
#include "ardour/automation_control.h"
+#include "ardour/libardour_visibility.h"
namespace ARDOUR {
-class SlavableAutomationControl : public AutomationControl
+class LIBARDOUR_API SlavableAutomationControl : public AutomationControl
{
- public:
+public:
SlavableAutomationControl(ARDOUR::Session&,
- const Evoral::Parameter& parameter,
- const ParameterDescriptor& desc,
- boost::shared_ptr<ARDOUR::AutomationList> l=boost::shared_ptr<ARDOUR::AutomationList>(),
- const std::string& name="");
+ const Evoral::Parameter& parameter,
+ const ParameterDescriptor& desc,
+ boost::shared_ptr<ARDOUR::AutomationList> l=boost::shared_ptr<ARDOUR::AutomationList>(),
+ const std::string& name="",
+ PBD::Controllable::Flag flags=PBD::Controllable::Flag (0)
+ );
+
+ virtual ~SlavableAutomationControl ();
double get_value () const;
void clear_masters ();
bool slaved_to (boost::shared_ptr<AutomationControl>) const;
bool slaved () const;
+
+ virtual void automation_run (samplepos_t start, pframes_t nframes);
+
double get_masters_value () const {
Glib::Threads::RWLock::ReaderLock lm (master_lock);
return get_masters_value_locked ();
}
- std::vector<PBD::ID> masters () const;
+ /* factor out get_masters_value() */
+ double reduce_by_masters (double val, bool ignore_automation_state = false) const {
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
+ return reduce_by_masters_locked (val, ignore_automation_state);
+ }
+
+ bool get_masters_curve (samplepos_t s, samplepos_t e, float* v, samplecnt_t l) const {
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
+ return get_masters_curve_locked (s, e, v, l);
+ }
+
+ /* for toggled/boolean controls, returns a count of the number of
+ masters currently enabled. For other controls, returns zero.
+ */
+ int32_t get_boolean_masters () const;
PBD::Signal0<void> MasterStatusChange;
- protected:
+ void use_saved_master_ratios ();
+
+ int set_state (XMLNode const&, int);
+ XMLNode& get_state();
+
+ bool find_next_event (double n, double e, Evoral::ControlEvent& ev) const
+ {
+ Glib::Threads::RWLock::ReaderLock lm (master_lock);
+ return find_next_event_locked (n, e, ev);
+ }
+
+ bool find_next_event_locked (double now, double end, Evoral::ControlEvent& next_event) const;
+
+protected:
class MasterRecord {
- public:
- MasterRecord (boost::shared_ptr<AutomationControl> gc, double r)
+ public:
+ MasterRecord (boost::weak_ptr<AutomationControl> gc, double vc, double vm)
: _master (gc)
- , _ratio (r)
+ , _yn (false)
+ , _val_ctrl (vc)
+ , _val_master (vm)
{}
- boost::shared_ptr<AutomationControl> master() const { return _master; }
+ boost::shared_ptr<AutomationControl> master() const { assert(_master.lock()); return _master.lock(); }
+
+ double val_ctrl () const { return _val_ctrl; }
+ double val_master () const { return _val_master; }
+
+ double val_master_inv () const { return _val_master == 0 ? 0 : 1.0 / _val_master; }
+ double master_ratio () const { return _val_master == 0 ? 0 : master()->get_value() / _val_master; }
+
+ int set_state (XMLNode const&, int);
/* for boolean/toggled controls, we store a boolean value to
* indicate if this master returned true/false (1.0/0.0) from
bool yn() const { return _yn; }
void set_yn (bool yn) { _yn = yn; }
- /* for non-boolean/non-toggled controls, we store a ratio that
- * connects the value of the master with the value of this
- * slave. See comments in the source for more details on how
- * this is computed and used.
- */
-
- double ratio () const { return _ratio; }
- void reset_ratio (double r) { _ratio = r; }
+ PBD::ScopedConnection changed_connection;
+ PBD::ScopedConnection dropped_connection;
- PBD::ScopedConnection connection;
+ private:
+ boost::weak_ptr<AutomationControl> _master;
+ /* holds most recently seen master value for boolean/toggle controls */
+ bool _yn;
- private:
- boost::shared_ptr<AutomationControl> _master;
- union {
- double _ratio;
- bool _yn;
- };
+ /* values at time of assignment */
+ double _val_ctrl;
+ double _val_master;
};
mutable Glib::Threads::RWLock master_lock;
typedef std::map<PBD::ID,MasterRecord> Masters;
Masters _masters;
- PBD::ScopedConnectionList masters_connections;
void master_going_away (boost::weak_ptr<AutomationControl>);
double get_value_locked() const;
- void actually_set_value (double val, PBD::Controllable::GroupControlDisposition group_override);
+ void actually_set_value (double value, PBD::Controllable::GroupControlDisposition);
void update_boolean_masters_records (boost::shared_ptr<AutomationControl>);
- bool get_boolean_masters () const;
- virtual void master_changed (bool from_self, GroupControlDisposition gcd, boost::shared_ptr<AutomationControl>);
- virtual void recompute_masters_ratios (double val) { /* do nothing by default */}
+ virtual bool get_masters_curve_locked (samplepos_t, samplepos_t, float*, samplecnt_t) const;
+ bool masters_curve_multiply (samplepos_t, samplepos_t, float*, samplecnt_t) const;
+
+ virtual double reduce_by_masters_locked (double val, bool) const;
+ virtual double scale_automation_callback (double val, double ratio) const;
+
+ virtual bool handle_master_change (boost::shared_ptr<AutomationControl>);
+ virtual bool boolean_automation_run_locked (samplepos_t start, pframes_t len);
+ bool boolean_automation_run (samplepos_t start, pframes_t len);
+
+ virtual void master_changed (bool from_self, GroupControlDisposition gcd, boost::weak_ptr<AutomationControl>);
virtual double get_masters_value_locked () const;
virtual void pre_remove_master (boost::shared_ptr<AutomationControl>) {}
virtual void post_add_master (boost::shared_ptr<AutomationControl>) {}
-
+ XMLNode* _masters_node; /* used to store master ratios in ::set_state() for later use */
};
} // namespace ARDOUR
projects / ardour.git / blobdiff