76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
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Copyright (C) 2016 Paul Davis
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "ardour/audioengine.h"
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#include "ardour/record_enable_control.h"
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#include "pbd/i18n.h"
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using namespace ARDOUR;
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using namespace PBD;
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RecordEnableControl::RecordEnableControl (Session& session, std::string const & name, Recordable& r)
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: SlavableAutomationControl (session, RecEnableAutomation, ParameterDescriptor (RecEnableAutomation),
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boost::shared_ptr<AutomationList>(new AutomationList(Evoral::Parameter(RecEnableAutomation))),
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name)
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, _recordable (r)
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{
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_list->set_interpolation(Evoral::ControlList::Discrete);
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/* record-enable changes must be synchronized by the process cycle */
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set_flags (Controllable::Flag (flags() | Controllable::RealTime));
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}
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void
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RecordEnableControl::set_value (double val, Controllable::GroupControlDisposition gcd)
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{
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/* Because we are marked as a RealTime control, this will queue
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up the control change to be executed in a realtime context.
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*/
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SlavableAutomationControl::set_value (val, gcd);
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}
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void
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RecordEnableControl::actually_set_value (double val, Controllable::GroupControlDisposition gcd)
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{
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if (val && !_recordable.can_be_record_enabled()) {
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std::cerr << "rec-enable not allowed\n";
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return;
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}
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SlavableAutomationControl::actually_set_value (val, gcd);
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}
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void
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RecordEnableControl::do_pre_realtime_queue_stuff (double newval)
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{
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/* do the non-RT part of rec-enabling first - the RT part will be done
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* on the next process cycle. This does mean that theoretically we are
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* doing things provisionally on the assumption that the rec-enable
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* change will work, but this had better be a solid assumption for
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* other reasons.
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*
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* this is guaranteed to be called from a non-process thread.
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*/
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if (_recordable.prep_record_enabled (newval)) {
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/* failed */
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std::cerr << "Prep rec-enable failed\n";
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}
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}
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