161 lines
5.8 KiB
C++
161 lines
5.8 KiB
C++
/*
|
|
* Copyright (C) 2016-2017 Paul Davis <paul@linuxaudiosystems.com>
|
|
* Copyright (C) 2017 Robin Gareus <robin@gareus.org>
|
|
*
|
|
* 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
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef __ardour_slavable_automation_control_h__
|
|
#define __ardour_slavable_automation_control_h__
|
|
|
|
#include "ardour/automation_control.h"
|
|
#include "ardour/libardour_visibility.h"
|
|
|
|
namespace ARDOUR {
|
|
|
|
class LIBARDOUR_API SlavableAutomationControl : public AutomationControl
|
|
{
|
|
public:
|
|
SlavableAutomationControl(ARDOUR::Session&,
|
|
const Evoral::Parameter& parameter,
|
|
const ParameterDescriptor& desc,
|
|
std::shared_ptr<ARDOUR::AutomationList> l=std::shared_ptr<ARDOUR::AutomationList>(),
|
|
const std::string& name="",
|
|
PBD::Controllable::Flag flags=PBD::Controllable::Flag (0)
|
|
);
|
|
|
|
virtual ~SlavableAutomationControl ();
|
|
|
|
double get_value () const;
|
|
|
|
void add_master (std::shared_ptr<AutomationControl>);
|
|
void remove_master (std::shared_ptr<AutomationControl>);
|
|
void clear_masters ();
|
|
bool slaved_to (std::shared_ptr<AutomationControl>) const;
|
|
bool slaved () const;
|
|
|
|
std::set<std::shared_ptr<AutomationControl>> masters () 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 ();
|
|
}
|
|
|
|
/* 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;
|
|
|
|
void use_saved_master_ratios ();
|
|
|
|
int set_state (XMLNode const&, int);
|
|
XMLNode& get_state() const;
|
|
|
|
bool find_next_event (Temporal::timepos_t const & n, Temporal::timepos_t const & 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 (Temporal::timepos_t const & now, Temporal::timepos_t const & end, Evoral::ControlEvent& next_event) const;
|
|
|
|
protected:
|
|
|
|
class MasterRecord {
|
|
public:
|
|
MasterRecord (std::weak_ptr<AutomationControl> gc, double vc, double vm)
|
|
: _master (gc)
|
|
, _yn (false)
|
|
, _val_ctrl (vc)
|
|
, _val_master (vm)
|
|
{}
|
|
|
|
std::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
|
|
* ::get_value() after its most recent change.
|
|
*/
|
|
|
|
bool yn() const { return _yn; }
|
|
void set_yn (bool yn) { _yn = yn; }
|
|
|
|
PBD::ScopedConnection changed_connection;
|
|
PBD::ScopedConnection dropped_connection;
|
|
|
|
private:
|
|
std::weak_ptr<AutomationControl> _master;
|
|
/* holds most recently seen master value for boolean/toggle controls */
|
|
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;
|
|
|
|
void master_going_away (std::weak_ptr<AutomationControl>);
|
|
double get_value_locked() const;
|
|
void actually_set_value (double value, PBD::Controllable::GroupControlDisposition);
|
|
void update_boolean_masters_records (std::shared_ptr<AutomationControl>);
|
|
|
|
virtual bool get_masters_curve_locked (samplepos_t, samplepos_t, float*, samplecnt_t) const;
|
|
bool masters_curve_multiply (timepos_t const &, timepos_t const &, 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 (std::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, std::weak_ptr<AutomationControl>);
|
|
virtual double get_masters_value_locked () const;
|
|
virtual void pre_remove_master (std::shared_ptr<AutomationControl>) {}
|
|
virtual void post_add_master (std::shared_ptr<AutomationControl>) {}
|
|
|
|
XMLNode* _masters_node; /* used to store master ratios in ::set_state() for later use */
|
|
};
|
|
|
|
} // namespace ARDOUR
|
|
|
|
#endif /* __ardour_slavable_automation_control_h__ */
|