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livetrax/libs/ardour/session_events.cc
Paul Davis ede4ecbb00 megaopus patch #2 for today: remove nframes64_t and sframes_t from source
git-svn-id: svn://localhost/ardour2/branches/3.0@7792 d708f5d6-7413-0410-9779-e7cbd77b26cf
2010-09-17 18:20:37 +00:00

281 lines
6.2 KiB
C++

/*
Copyright (C) 1999-2004 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.
*/
#include <cmath>
#include <unistd.h>
#include "ardour/timestamps.h"
#include "pbd/error.h"
#include "pbd/enumwriter.h"
#include "ardour/ardour.h"
#include "ardour/audio_diskstream.h"
#include "ardour/butler.h"
#include "ardour/debug.h"
#include "ardour/session_event.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
PerThreadPool* SessionEvent::pool;
void
SessionEvent::init_event_pool ()
{
pool = new PerThreadPool;
}
void
SessionEvent::create_per_thread_pool (const std::string& name, uint32_t nitems)
{
/* this is a per-thread call that simply creates a thread-private ptr to
a CrossThreadPool for use by this thread whenever events are allocated/released
from SessionEvent::pool()
*/
pool->create_per_thread_pool (name, sizeof (SessionEvent), nitems);
}
void *
SessionEvent::operator new (size_t)
{
CrossThreadPool* p = pool->per_thread_pool ();
SessionEvent* ev = static_cast<SessionEvent*> (p->alloc ());
ev->own_pool = p;
return ev;
}
void
SessionEvent::operator delete (void *ptr, size_t /*size*/)
{
Pool* p = pool->per_thread_pool ();
SessionEvent* ev = static_cast<SessionEvent*> (ptr);
if (p == ev->own_pool) {
p->release (ptr);
} else {
ev->own_pool->push (ev);
}
}
void
SessionEventManager::add_event (framepos_t frame, SessionEvent::Type type, framepos_t target_frame)
{
SessionEvent* ev = new SessionEvent (type, SessionEvent::Add, frame, target_frame, 0);
queue_event (ev);
}
void
SessionEventManager::remove_event (framepos_t frame, SessionEvent::Type type)
{
SessionEvent* ev = new SessionEvent (type, SessionEvent::Remove, frame, 0, 0);
queue_event (ev);
}
void
SessionEventManager::replace_event (SessionEvent::Type type, framepos_t frame, framepos_t target)
{
SessionEvent* ev = new SessionEvent (type, SessionEvent::Replace, frame, target, 0);
queue_event (ev);
}
void
SessionEventManager::clear_events (SessionEvent::Type type)
{
SessionEvent* ev = new SessionEvent (type, SessionEvent::Clear, 0, 0, 0);
queue_event (ev);
}
void
SessionEventManager::dump_events () const
{
cerr << "EVENT DUMP" << endl;
for (Events::const_iterator i = events.begin(); i != events.end(); ++i) {
cerr << "\tat " << (*i)->action_frame << ' ' << (*i)->type << " target = " << (*i)->target_frame << endl;
}
cerr << "Next event: ";
if ((Events::const_iterator) next_event == events.end()) {
cerr << "none" << endl;
} else {
cerr << "at " << (*next_event)->action_frame << ' '
<< (*next_event)->type << " target = "
<< (*next_event)->target_frame << endl;
}
cerr << "Immediate events pending:\n";
for (Events::const_iterator i = immediate_events.begin(); i != immediate_events.end(); ++i) {
cerr << "\tat " << (*i)->action_frame << ' ' << (*i)->type << " target = " << (*i)->target_frame << endl;
}
cerr << "END EVENT_DUMP" << endl;
}
void
SessionEventManager::merge_event (SessionEvent* ev)
{
switch (ev->action) {
case SessionEvent::Remove:
_remove_event (ev);
delete ev;
return;
case SessionEvent::Replace:
_replace_event (ev);
return;
case SessionEvent::Clear:
_clear_event_type (ev->type);
delete ev;
return;
case SessionEvent::Add:
break;
}
/* try to handle immediate events right here */
if (ev->action_frame == 0) {
process_event (ev);
return;
}
switch (ev->type) {
case SessionEvent::AutoLoop:
case SessionEvent::StopOnce:
_clear_event_type (ev->type);
break;
default:
for (Events::iterator i = events.begin(); i != events.end(); ++i) {
if ((*i)->type == ev->type && (*i)->action_frame == ev->action_frame) {
error << string_compose(_("Session: cannot have two events of type %1 at the same frame (%2)."),
enum_2_string (ev->type), ev->action_frame) << endmsg;
return;
}
}
}
events.insert (events.begin(), ev);
events.sort (SessionEvent::compare);
next_event = events.begin();
set_next_event ();
}
/** @return true when @a ev is deleted. */
bool
SessionEventManager::_replace_event (SessionEvent* ev)
{
bool ret = false;
Events::iterator i;
/* private, used only for events that can only exist once in the queue */
for (i = events.begin(); i != events.end(); ++i) {
if ((*i)->type == ev->type) {
(*i)->action_frame = ev->action_frame;
(*i)->target_frame = ev->target_frame;
if ((*i) == ev) {
ret = true;
}
delete ev;
break;
}
}
if (i == events.end()) {
events.insert (events.begin(), ev);
}
events.sort (SessionEvent::compare);
next_event = events.end();
set_next_event ();
return ret;
}
/** @return true when @a ev is deleted. */
bool
SessionEventManager::_remove_event (SessionEvent* ev)
{
bool ret = false;
Events::iterator i;
for (i = events.begin(); i != events.end(); ++i) {
if ((*i)->type == ev->type && (*i)->action_frame == ev->action_frame) {
if ((*i) == ev) {
ret = true;
}
delete *i;
if (i == next_event) {
++next_event;
}
events.erase (i);
break;
}
}
if (i != events.end()) {
set_next_event ();
}
return ret;
}
void
SessionEventManager::_clear_event_type (SessionEvent::Type type)
{
Events::iterator i, tmp;
for (i = events.begin(); i != events.end(); ) {
tmp = i;
++tmp;
if ((*i)->type == type) {
delete *i;
if (i == next_event) {
++next_event;
}
events.erase (i);
}
i = tmp;
}
for (i = immediate_events.begin(); i != immediate_events.end(); ) {
tmp = i;
++tmp;
if ((*i)->type == type) {
delete *i;
immediate_events.erase (i);
}
i = tmp;
}
set_next_event ();
}