2 Copyright (C) 1999-2004 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include "ardour/timestamps.h"
25 #include "pbd/error.h"
26 #include <glibmm/thread.h>
28 #include "ardour/ardour.h"
29 #include "ardour/session.h"
30 #include "ardour/audio_diskstream.h"
35 using namespace ARDOUR;
38 MultiAllocSingleReleasePool Session::Event::pool ("event", sizeof (Session::Event), 512);
40 static const char* event_names[] = {
54 "InputConfigurationChange",
63 Session::add_event (nframes_t frame, Event::Type type, nframes_t target_frame)
65 Event* ev = new Event (type, Event::Add, frame, target_frame, 0);
70 Session::remove_event (nframes_t frame, Event::Type type)
72 Event* ev = new Event (type, Event::Remove, frame, 0, 0);
77 Session::replace_event (Event::Type type, nframes_t frame, nframes_t target)
79 Event* ev = new Event (type, Event::Replace, frame, target, 0);
84 Session::clear_events (Event::Type type)
86 Event* ev = new Event (type, Event::Clear, 0, 0, 0);
92 Session::dump_events () const
94 cerr << "EVENT DUMP" << endl;
95 for (Events::const_iterator i = events.begin(); i != events.end(); ++i) {
96 cerr << "\tat " << (*i)->action_frame << ' ' << (*i)->type << " target = " << (*i)->target_frame << endl;
98 cerr << "Next event: ";
100 if ((Events::const_iterator) next_event == events.end()) {
101 cerr << "none" << endl;
103 cerr << "at " << (*next_event)->action_frame << ' '
104 << (*next_event)->type << " target = "
105 << (*next_event)->target_frame << endl;
107 cerr << "Immediate events pending:\n";
108 for (Events::const_iterator i = immediate_events.begin(); i != immediate_events.end(); ++i) {
109 cerr << "\tat " << (*i)->action_frame << ' ' << (*i)->type << " target = " << (*i)->target_frame << endl;
111 cerr << "END EVENT_DUMP" << endl;
115 Session::queue_event (Event* ev)
117 if (_state_of_the_state & Loading) {
120 pending_events.write (&ev, 1);
125 Session::merge_event (Event* ev)
127 switch (ev->action) {
138 _clear_event_type (ev->type);
146 /* try to handle immediate events right here */
148 if (ev->action_frame == 0) {
154 case Event::AutoLoop:
155 case Event::StopOnce:
156 _clear_event_type (ev->type);
160 for (Events::iterator i = events.begin(); i != events.end(); ++i) {
161 if ((*i)->type == ev->type && (*i)->action_frame == ev->action_frame) {
162 error << string_compose(_("Session: cannot have two events of type %1 at the same frame (%2)."),
163 event_names[ev->type], ev->action_frame) << endmsg;
169 events.insert (events.begin(), ev);
170 events.sort (Event::compare);
171 next_event = events.begin();
175 /** @return true when @a ev is deleted. */
177 Session::_replace_event (Event* ev)
182 /* private, used only for events that can only exist once in the queue */
184 for (i = events.begin(); i != events.end(); ++i) {
185 if ((*i)->type == ev->type) {
186 (*i)->action_frame = ev->action_frame;
187 (*i)->target_frame = ev->target_frame;
196 if (i == events.end()) {
197 events.insert (events.begin(), ev);
200 events.sort (Event::compare);
201 next_event = events.end();
207 /** @return true when @a ev is deleted. */
209 Session::_remove_event (Session::Event* ev)
214 for (i = events.begin(); i != events.end(); ++i) {
215 if ((*i)->type == ev->type && (*i)->action_frame == ev->action_frame) {
221 if (i == next_event) {
229 if (i != events.end()) {
237 Session::_clear_event_type (Event::Type type)
239 Events::iterator i, tmp;
241 for (i = events.begin(); i != events.end(); ) {
246 if ((*i)->type == type) {
248 if (i == next_event) {
257 for (i = immediate_events.begin(); i != immediate_events.end(); ) {
262 if ((*i)->type == type) {
264 immediate_events.erase (i);
274 Session::set_next_event ()
276 if (events.empty()) {
277 next_event = events.end();
281 if (next_event == events.end()) {
282 next_event = events.begin();
285 if ((*next_event)->action_frame > _transport_frame) {
286 next_event = events.begin();
289 for (; next_event != events.end(); ++next_event) {
290 if ((*next_event)->action_frame >= _transport_frame) {
297 Session::process_event (Event* ev)
302 /* if we're in the middle of a state change (i.e. waiting
303 for the butler thread to complete the non-realtime
304 part of the change), we'll just have to queue this
305 event for a time when the change is complete.
308 if (non_realtime_work_pending()) {
310 /* except locates, which we have the capability to handle */
312 if (ev->type != Event::Locate) {
313 immediate_events.insert (immediate_events.end(), ev);
319 //printf("Processing event: %s\n", event_names[ev->type]);
323 set_play_loop (ev->yes_or_no);
326 case Event::AutoLoop:
328 start_locate (ev->target_frame, true, false, Config->get_seamless_loop());
336 // cerr << "forced locate to " << ev->target_frame << endl;
337 locate (ev->target_frame, false, true, false);
339 // cerr << "soft locate to " << ev->target_frame << endl;
340 start_locate (ev->target_frame, false, true, false);
342 _send_smpte_update = true;
345 case Event::LocateRoll:
347 // cerr << "forced locate to+roll " << ev->target_frame << endl;
348 locate (ev->target_frame, true, true, false);
350 // cerr << "soft locate to+roll " << ev->target_frame << endl;
351 start_locate (ev->target_frame, true, true, false);
353 _send_smpte_update = true;
356 case Event::LocateRollLocate:
357 // locate is handled by ::request_roll_at_and_return()
358 _requested_return_frame = ev->target_frame;
359 request_locate (ev->target2_frame, true);
363 case Event::SetTransportSpeed:
364 set_transport_speed (ev->speed, ev->yes_or_no);
368 // cerr << "PunchIN at " << transport_frame() << endl;
369 if (config.get_punch_in() && record_status() == Enabled) {
376 case Event::PunchOut:
377 // cerr << "PunchOUT at " << transport_frame() << endl;
378 if (config.get_punch_out()) {
379 step_back_from_record ();
385 case Event::StopOnce:
386 if (!non_realtime_work_pending()) {
387 stop_transport (ev->yes_or_no);
388 _clear_event_type (Event::StopOnce);
394 case Event::RangeStop:
395 if (!non_realtime_work_pending()) {
396 stop_transport (ev->yes_or_no);
402 case Event::RangeLocate:
403 start_locate (ev->target_frame, true, true, false);
408 case Event::Overwrite:
409 overwrite_some_buffers (static_cast<Diskstream*>(ev->ptr));
412 case Event::SetDiskstreamSpeed:
413 set_diskstream_speed (static_cast<Diskstream*> (ev->ptr), ev->speed);
416 case Event::SetSlaveSource:
417 set_slave_source (ev->slave);
420 case Event::Audition:
421 set_audition (ev->region);
422 // drop reference to region
426 case Event::InputConfigurationChange:
427 post_transport_work = PostTransportWork (post_transport_work | PostTransportInputChange);
428 schedule_butler_transport_work ();
431 case Event::SetAudioRange:
432 current_audio_range = ev->audio_range;
436 case Event::SetPlayRange:
437 set_play_range (ev->yes_or_no);
441 fatal << string_compose(_("Programming error: illegal event type in process_event (%1)"), ev->type) << endmsg;
447 del = del && !_remove_event (ev);