Files
ardour/libs/ardour/tailtime.cc
Robin Gareus 520bbfe515 Add proper API to expose plugin tailtime
This is in preparation to display current tail time,
and allow a user to override it.

This is similar to existing processor latency API.
2024-08-31 02:55:04 +02:00

88 lines
2.1 KiB
C++

/*
* Copyright (C) 2024 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "pbd/xml++.h"
#include "ardour/tailtime.h"
#include "ardour/rc_configuration.h"
using namespace ARDOUR;
TailTime::TailTime ()
: HasTailTime ()
, _use_user_tailtime (false)
, _user_tailtime (0)
{}
TailTime::TailTime (TailTime const& other)
: HasTailTime ()
, _use_user_tailtime (other._use_user_tailtime)
, _user_tailtime (other._user_tailtime)
{}
samplecnt_t
TailTime::effective_tailtime () const
{
if (_use_user_tailtime) {
return _user_tailtime;
} else {
return std::max<samplecnt_t> (0, std::min<samplecnt_t> (signal_tailtime (), Config->get_max_tail_samples ()));
}
}
void
TailTime::set_user_tailtime (samplecnt_t val)
{
if (_use_user_tailtime && _user_tailtime == val) {
return;
}
_use_user_tailtime = true;
_user_tailtime = val;
TailTimeChanged (); /* EMIT SIGNAL */
}
void
TailTime::unset_user_tailtime ()
{
if (!_use_user_tailtime) {
return;
}
_use_user_tailtime = false;
_user_tailtime = 0;
TailTimeChanged (); /* EMIT SIGNAL */
}
int
TailTime::set_state (const XMLNode& node, int version)
{
node.get_property ("user-tailtime", _user_tailtime);
if (!node.get_property ("use-user-tailtime", _use_user_tailtime)) {
_use_user_tailtime = _user_tailtime > 0;
}
return 0;
}
void
TailTime::add_state (XMLNode* node) const
{
node->set_property ("user-tailtime", _user_tailtime);
node->set_property ("use-user-tailtime", _use_user_tailtime);
}