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diff --git a/libs/ardour/ardour/automation_event.h b/libs/ardour/ardour/automation_event.h
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-/*
- Copyright (C) 2002 Paul Davis
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-#ifndef __ardour_automation_event_h__
-#define __ardour_automation_event_h__
-
-#include <stdint.h>
-#include <list>
-#include <cmath>
-
-#include <sigc++/signal.h>
-#include <glibmm/thread.h>
-
-#include <boost/pool/pool.hpp>
-#include <boost/pool/pool_alloc.hpp>
-
-#include <pbd/undo.h>
-#include <pbd/xml++.h>
-#include <pbd/statefuldestructible.h>
-
-#include <ardour/ardour.h>
-#include <ardour/parameter.h>
-
-namespace ARDOUR {
-
-class Curve;
-
-struct ControlEvent {
-
- ControlEvent (double w, double v)
- : when (w), value (v), coeff (0) {
- }
-
- ControlEvent (const ControlEvent& other)
- : when (other.when), value (other.value), coeff (0) {
- if (other.coeff) {
- create_coeffs();
- for (size_t i=0; i < 4; ++i)
- coeff[i] = other.coeff[i];
- }
- }
-
- ~ControlEvent() { if (coeff) delete[] coeff; }
-
- void create_coeffs() {
- if (!coeff)
- coeff = new double[4];
-
- coeff[0] = coeff[1] = coeff[2] = coeff[3] = 0.0;
- }
-
- double when;
- double value;
- double* coeff; ///< double[4] allocated by Curve as needed
-};
-
-/* automation lists use a pool allocator that does not use a lock and
- allocates 8k of new pointers at a time
-*/
-
-typedef boost::fast_pool_allocator<ControlEvent*,
- boost::default_user_allocator_new_delete,
- boost::details::pool::null_mutex,
- 8192> ControlEventAllocator;
-
-class AutomationList : public PBD::StatefulDestructible
-{
- public:
- typedef std::list<ControlEvent*,ControlEventAllocator> EventList;
- typedef EventList::iterator iterator;
- typedef EventList::reverse_iterator reverse_iterator;
- typedef EventList::const_iterator const_iterator;
-
- AutomationList (Parameter id, double min_val, double max_val, double default_val);
- AutomationList (const XMLNode&, Parameter id);
- ~AutomationList();
-
- AutomationList (const AutomationList&);
- AutomationList (const AutomationList&, double start, double end);
- AutomationList& operator= (const AutomationList&);
- bool operator== (const AutomationList&);
-
- const Parameter& parameter() const { return _parameter; }
- void set_parameter(Parameter p) { _parameter = p; }
-
- void freeze();
- void thaw ();
-
- EventList::size_type size() const { return _events.size(); }
- bool empty() const { return _events.empty(); }
-
- void reset_default (double val) {
- _default_value = val;
- }
-
- void clear ();
- void x_scale (double factor);
- bool extend_to (double);
- void slide (iterator before, double distance);
-
- void reposition_for_rt_add (double when);
- void rt_add (double when, double value);
- void add (double when, double value);
- /* this should be private but old-school automation loading needs it in IO/IOProcessor */
- void fast_simple_add (double when, double value);
-
- void reset_range (double start, double end);
- void erase_range (double start, double end);
- void erase (iterator);
- void erase (iterator, iterator);
- void move_range (iterator start, iterator end, double, double);
- void modify (iterator, double, double);
-
- AutomationList* cut (double, double);
- AutomationList* copy (double, double);
- void clear (double, double);
-
- AutomationList* cut (iterator, iterator);
- AutomationList* copy (iterator, iterator);
- void clear (iterator, iterator);
-
- bool paste (AutomationList&, double position, float times);
-
- void set_automation_state (AutoState);
- AutoState automation_state() const { return _state; }
- sigc::signal<void> automation_style_changed;
-
- void set_automation_style (AutoStyle m);
- AutoStyle automation_style() const { return _style; }
- sigc::signal<void> automation_state_changed;
-
- bool automation_playback() const {
- return (_state & Play) || ((_state & Touch) && !_touching);
- }
- bool automation_write () const {
- return (_state & Write) || ((_state & Touch) && _touching);
- }
-
- void start_touch ();
- void stop_touch ();
- bool touching() const { return _touching; }
-
- void set_yrange (double min, double max) {
- _min_yval = min;
- _max_yval = max;
- }
-
- double get_max_y() const { return _max_yval; }
- double get_min_y() const { return _min_yval; }
-
- void truncate_end (double length);
- void truncate_start (double length);
-
- iterator begin() { return _events.begin(); }
- iterator end() { return _events.end(); }
-
- ControlEvent* back() { return _events.back(); }
- ControlEvent* front() { return _events.front(); }
-
- const_iterator const_begin() const { return _events.begin(); }
- const_iterator const_end() const { return _events.end(); }
-
- std::pair<AutomationList::iterator,AutomationList::iterator> control_points_adjacent (double when);
-
- template<class T> void apply_to_points (T& obj, void (T::*method)(const AutomationList&)) {
- Glib::Mutex::Lock lm (_lock);
- (obj.*method)(*this);
- }
-
- sigc::signal<void> StateChanged;
-
- XMLNode& get_state(void);
- int set_state (const XMLNode &s);
- XMLNode& state (bool full);
- XMLNode& serialize_events ();
-
- void set_max_xval (double);
- double get_max_xval() const { return _max_xval; }
-
- double eval (double where) {
- Glib::Mutex::Lock lm (_lock);
- return unlocked_eval (where);
- }
-
- double rt_safe_eval (double where, bool& ok) {
-
- Glib::Mutex::Lock lm (_lock, Glib::TRY_LOCK);
-
- if ((ok = lm.locked())) {
- return unlocked_eval (where);
- } else {
- return 0.0;
- }
- }
-
- static inline bool time_comparator (const ControlEvent* a, const ControlEvent* b) {
- return a->when < b->when;
- }
-
- /** Lookup cache for eval functions, range contains equivalent values */
- struct LookupCache {
- LookupCache() : left(-1) {}
- double left; /* leftmost x coordinate used when finding "range" */
- std::pair<AutomationList::const_iterator,AutomationList::const_iterator> range;
- };
-
- /** Lookup cache for point finding, range contains points between left and right */
- struct SearchCache {
- SearchCache() : left(-1), right(-1) {}
- double left; /* leftmost x coordinate used when finding "range" */
- double right; /* rightmost x coordinate used when finding "range" */
- std::pair<AutomationList::const_iterator,AutomationList::const_iterator> range;
- };
-
- static sigc::signal<void, AutomationList*> AutomationListCreated;
-
- const EventList& events() const { return _events; }
- double default_value() const { return _default_value; }
-
- // teeny const violations for Curve
- mutable sigc::signal<void> Dirty;
- Glib::Mutex& lock() const { return _lock; }
- LookupCache& lookup_cache() const { return _lookup_cache; }
- SearchCache& search_cache() const { return _search_cache; }
-
- /** Called by locked entry point and various private
- * locations where we already hold the lock.
- *
- * FIXME: Should this be private? Curve needs it..
- */
- double unlocked_eval (double x) const;
-
- bool rt_safe_earliest_event (double start, double end, double& x, double& y, bool start_inclusive=false) const;
- bool rt_safe_earliest_event_unlocked (double start, double end, double& x, double& y, bool start_inclusive=false) const;
-
- Curve& curve() { return *_curve; }
- const Curve& curve() const { return *_curve; }
-
- enum InterpolationStyle {
- Discrete,
- Linear,
- Curved
- };
-
- InterpolationStyle interpolation() const { return _interpolation; }
- void set_interpolation(InterpolationStyle style) { _interpolation = style; }
-
- private:
-
- /** Called by unlocked_eval() to handle cases of 3 or more control points.
- */
- double multipoint_eval (double x) const;
-
- void build_search_cache_if_necessary(double start, double end) const;
-
- bool rt_safe_earliest_event_discrete_unlocked (double start, double end, double& x, double& y, bool inclusive) const;
- bool rt_safe_earliest_event_linear_unlocked (double start, double end, double& x, double& y, bool inclusive) const;
-
- AutomationList* cut_copy_clear (double, double, int op);
-
- int deserialize_events (const XMLNode&);
-
- void maybe_signal_changed ();
- void mark_dirty ();
- void _x_scale (double factor);
-
- mutable LookupCache _lookup_cache;
- mutable SearchCache _search_cache;
-
- Parameter _parameter;
- InterpolationStyle _interpolation;
- EventList _events;
- mutable Glib::Mutex _lock;
- int8_t _frozen;
- bool _changed_when_thawed;
- AutoState _state;
- AutoStyle _style;
- bool _touching;
- bool _new_touch;
- double _max_xval;
- double _min_yval;
- double _max_yval;
- double _default_value;
- bool _sort_pending;
- iterator _rt_insertion_point;
- double _rt_pos;
-
- Curve* _curve;
-};
-
-} // namespace
-
-#endif /* __ardour_automation_event_h__ */
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