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 "pbd/enumwriter.h"
27 #include <glibmm/thread.h>
29 #include "ardour/ardour.h"
30 #include "ardour/audio_diskstream.h"
31 #include "ardour/butler.h"
32 #include "ardour/session.h"
37 using namespace ARDOUR;
40 MultiAllocSingleReleasePool Session::Event::pool ("event", sizeof (Session::Event), 512);
43 Session::add_event (nframes_t frame, Event::Type type, nframes_t target_frame)
45 Event* ev = new Event (type, Event::Add, frame, target_frame, 0);
50 Session::remove_event (nframes_t frame, Event::Type type)
52 Event* ev = new Event (type, Event::Remove, frame, 0, 0);
57 Session::replace_event (Event::Type type, nframes_t frame, nframes_t target)
59 Event* ev = new Event (type, Event::Replace, frame, target, 0);
64 Session::clear_events (Event::Type type)
66 Event* ev = new Event (type, Event::Clear, 0, 0, 0);
72 Session::dump_events () const
74 cerr << "EVENT DUMP" << endl;
75 for (Events::const_iterator i = events.begin(); i != events.end(); ++i) {
76 cerr << "\tat " << (*i)->action_frame << ' ' << (*i)->type << " target = " << (*i)->target_frame << endl;
78 cerr << "Next event: ";
80 if ((Events::const_iterator) next_event == events.end()) {
81 cerr << "none" << endl;
83 cerr << "at " << (*next_event)->action_frame << ' '
84 << (*next_event)->type << " target = "
85 << (*next_event)->target_frame << endl;
87 cerr << "Immediate events pending:\n";
88 for (Events::const_iterator i = immediate_events.begin(); i != immediate_events.end(); ++i) {
89 cerr << "\tat " << (*i)->action_frame << ' ' << (*i)->type << " target = " << (*i)->target_frame << endl;
91 cerr << "END EVENT_DUMP" << endl;
95 Session::queue_event (Event* ev)
97 if (_state_of_the_state & Loading) {
100 pending_events.write (&ev, 1);
105 Session::merge_event (Event* ev)
107 switch (ev->action) {
118 _clear_event_type (ev->type);
126 /* try to handle immediate events right here */
128 if (ev->action_frame == 0) {
134 case Event::AutoLoop:
135 case Event::StopOnce:
136 _clear_event_type (ev->type);
140 for (Events::iterator i = events.begin(); i != events.end(); ++i) {
141 if ((*i)->type == ev->type && (*i)->action_frame == ev->action_frame) {
142 error << string_compose(_("Session: cannot have two events of type %1 at the same frame (%2)."),
143 enum_2_string (ev->type), ev->action_frame) << endmsg;
149 events.insert (events.begin(), ev);
150 events.sort (Event::compare);
151 next_event = events.begin();
155 /** @return true when @a ev is deleted. */
157 Session::_replace_event (Event* ev)
162 /* private, used only for events that can only exist once in the queue */
164 for (i = events.begin(); i != events.end(); ++i) {
165 if ((*i)->type == ev->type) {
166 (*i)->action_frame = ev->action_frame;
167 (*i)->target_frame = ev->target_frame;
176 if (i == events.end()) {
177 events.insert (events.begin(), ev);
180 events.sort (Event::compare);
181 next_event = events.end();
187 /** @return true when @a ev is deleted. */
189 Session::_remove_event (Session::Event* ev)
194 for (i = events.begin(); i != events.end(); ++i) {
195 if ((*i)->type == ev->type && (*i)->action_frame == ev->action_frame) {
201 if (i == next_event) {
209 if (i != events.end()) {
217 Session::_clear_event_type (Event::Type type)
219 Events::iterator i, tmp;
221 for (i = events.begin(); i != events.end(); ) {
226 if ((*i)->type == type) {
228 if (i == next_event) {
237 for (i = immediate_events.begin(); i != immediate_events.end(); ) {
242 if ((*i)->type == type) {
244 immediate_events.erase (i);
254 Session::set_next_event ()
256 if (events.empty()) {
257 next_event = events.end();
261 if (next_event == events.end()) {
262 next_event = events.begin();
265 if ((*next_event)->action_frame > _transport_frame) {
266 next_event = events.begin();
269 for (; next_event != events.end(); ++next_event) {
270 if ((*next_event)->action_frame >= _transport_frame) {
277 Session::process_event (Event* ev)
282 /* if we're in the middle of a state change (i.e. waiting
283 for the butler thread to complete the non-realtime
284 part of the change), we'll just have to queue this
285 event for a time when the change is complete.
288 if (non_realtime_work_pending()) {
290 /* except locates, which we have the capability to handle */
292 if (ev->type != Event::Locate) {
293 immediate_events.insert (immediate_events.end(), ev);
299 //printf("Processing event: %s\n", event_names[ev->type]);
303 set_play_loop (ev->yes_or_no);
306 case Event::AutoLoop:
308 start_locate (ev->target_frame, true, false, Config->get_seamless_loop());
316 // cerr << "forced locate to " << ev->target_frame << endl;
317 locate (ev->target_frame, false, true, false);
319 // cerr << "soft locate to " << ev->target_frame << endl;
320 start_locate (ev->target_frame, false, true, false);
322 _send_timecode_update = true;
325 case Event::LocateRoll:
327 // cerr << "forced locate to+roll " << ev->target_frame << endl;
328 locate (ev->target_frame, true, true, false);
330 // cerr << "soft locate to+roll " << ev->target_frame << endl;
331 start_locate (ev->target_frame, true, true, false);
333 _send_timecode_update = true;
336 case Event::LocateRollLocate:
337 // locate is handled by ::request_roll_at_and_return()
338 _requested_return_frame = ev->target_frame;
339 request_locate (ev->target2_frame, true);
343 case Event::SetTransportSpeed:
344 set_transport_speed (ev->speed, ev->yes_or_no, ev->second_yes_or_no);
348 // cerr << "PunchIN at " << transport_frame() << endl;
349 if (config.get_punch_in() && record_status() == Enabled) {
356 case Event::PunchOut:
357 // cerr << "PunchOUT at " << transport_frame() << endl;
358 if (config.get_punch_out()) {
359 step_back_from_record ();
365 case Event::StopOnce:
366 if (!non_realtime_work_pending()) {
367 stop_transport (ev->yes_or_no);
368 _clear_event_type (Event::StopOnce);
374 case Event::RangeStop:
375 if (!non_realtime_work_pending()) {
376 stop_transport (ev->yes_or_no);
382 case Event::RangeLocate:
383 start_locate (ev->target_frame, true, true, false);
388 case Event::Overwrite:
389 overwrite_some_buffers (static_cast<Diskstream*>(ev->ptr));
392 case Event::SetDiskstreamSpeed:
393 set_diskstream_speed (static_cast<Diskstream*> (ev->ptr), ev->speed);
396 case Event::SetSlaveSource:
397 set_slave_source (ev->slave);
400 case Event::Audition:
401 set_audition (ev->region);
402 // drop reference to region
406 case Event::InputConfigurationChange:
407 add_post_transport_work (PostTransportInputChange);
408 _butler->schedule_transport_work ();
411 case Event::SetPlayAudioRange:
412 set_play_range (ev->audio_range, (ev->speed == 1.0f));
416 fatal << string_compose(_("Programming error: illegal event type in process_event (%1)"), ev->type) << endmsg;
422 del = del && !_remove_event (ev);