1 #ifndef __ardour_session_event_h__
2 #define __ardour_session_event_h__
5 #include <boost/function.hpp>
6 #include <boost/shared_ptr.hpp>
9 #include "pbd/ringbuffer.h"
10 #include "pbd/event_loop.h"
12 #include "ardour/types.h"
35 InputConfigurationChange,
38 AdjustPlaybackBuffering,
39 AdjustCaptureBuffering,
40 SetTimecodeTransmission,
42 /* only one of each of these events can be queued at any one time */
58 framepos_t action_frame;
59 framepos_t target_frame;
65 framepos_t target2_frame;
71 bool second_yes_or_no;
78 /* 4 members to handle a multi-group event handled in RT context */
80 typedef boost::function<void (SessionEvent*)> RTeventCallback;
82 boost::shared_ptr<RouteList> routes; /* apply to */
83 boost::function<void (void)> rt_slot; /* what to call in RT context */
84 RTeventCallback rt_return; /* called after rt_slot, with this event as an argument */
85 PBD::EventLoop* event_loop;
87 std::list<AudioRange> audio_range;
88 std::list<MusicRange> music_range;
90 boost::shared_ptr<Region> region;
92 SessionEvent (Type t, Action a, framepos_t when, framepos_t where, double spd, bool yn = false, bool yn2 = false, bool yn3 = false)
96 , target_frame (where)
99 , second_yes_or_no (yn2)
100 , third_yes_or_no (yn3)
103 void set_ptr (void* p) {
107 bool before (const SessionEvent& other) const {
108 return action_frame < other.action_frame;
111 bool after (const SessionEvent& other) const {
112 return action_frame > other.action_frame;
115 static bool compare (const SessionEvent *e1, const SessionEvent *e2) {
116 return e1->before (*e2);
119 void* operator new (size_t);
120 void operator delete (void *ptr, size_t /*size*/);
122 static const framepos_t Immediate = 0;
124 static void create_per_thread_pool (const std::string& n, uint32_t nitems);
125 static void init_event_pool ();
128 static PerThreadPool* pool;
129 CrossThreadPool* own_pool;
134 class SessionEventManager {
136 SessionEventManager () : pending_events (2048),
137 auto_loop_event(0), punch_out_event(0), punch_in_event(0) {}
138 virtual ~SessionEventManager() {}
140 virtual void queue_event (SessionEvent *ev) = 0;
141 void clear_events (SessionEvent::Type type);
144 RingBuffer<SessionEvent*> pending_events;
145 typedef std::list<SessionEvent *> Events;
147 Events immediate_events;
148 Events::iterator next_event;
150 /* there can only ever be one of each of these */
152 SessionEvent *auto_loop_event;
153 SessionEvent *punch_out_event;
154 SessionEvent *punch_in_event;
156 void dump_events () const;
157 void merge_event (SessionEvent*);
158 void replace_event (SessionEvent::Type, framepos_t action_frame, framepos_t target = 0);
159 bool _replace_event (SessionEvent*);
160 bool _remove_event (SessionEvent *);
161 void _clear_event_type (SessionEvent::Type);
163 void add_event (framepos_t action_frame, SessionEvent::Type type, framepos_t target_frame = 0);
164 void remove_event (framepos_t frame, SessionEvent::Type type);
166 virtual void process_event(SessionEvent*) = 0;
167 virtual void set_next_event () = 0;
172 #endif /* __ardour_session_event_h__ */