diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2016-04-08 16:51:34 -0400 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2016-05-31 15:30:40 -0400 |
commit | 4aa1c242ab1e1bf4fc3575c5d88a22824976a04f (patch) | |
tree | f71d4c56255a9c72bfd582668d03caed1d2c731c /libs/ardour/record_enable_control.cc | |
parent | 653ae4acd639fef149314fe6f8c7a0d862afae40 (diff) |
add new files to source tree
Diffstat (limited to 'libs/ardour/record_enable_control.cc')
-rw-r--r-- | libs/ardour/record_enable_control.cc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/libs/ardour/record_enable_control.cc b/libs/ardour/record_enable_control.cc new file mode 100644 index 0000000000..f71fd5034b --- /dev/null +++ b/libs/ardour/record_enable_control.cc @@ -0,0 +1,73 @@ +/* + Copyright (C) 2016 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 "ardour/audioengine.h" +#include "ardour/record_enable_control.h" + +#include "i18n.h" + +using namespace ARDOUR; +using namespace PBD; + +RecordEnableControl::RecordEnableControl (Session& session, std::string const & name, Recordable& r) + : SlavableAutomationControl (session, RecEnableAutomation, ParameterDescriptor (RecEnableAutomation), + boost::shared_ptr<AutomationList>(new AutomationList(Evoral::Parameter(RecEnableAutomation))), + name) + , _recordable (r) +{ + _list->set_interpolation(Evoral::ControlList::Discrete); + + /* record-enable changes must be synchronized by the process cycle */ + set_flags (Controllable::Flag (flags() | Controllable::RealTime)); +} + +void +RecordEnableControl::set_value (double val, Controllable::GroupControlDisposition gcd) +{ + /* do the non-RT part of rec-enabling first - the RT part will be done + * on the next process cycle. This does mean that theoretically we are + * doing things provisionally on the assumption that the rec-enable + * change will work, but this had better be a solid assumption for + * other reasons. + */ + + if (!AudioEngine::instance()->in_process_thread()) { + if (_recordable.prep_record_enabled (val)) { + /* failed */ + std::cerr << "Prep rec-enable failed\n"; + return; + } + } + + /* Because we are marked as a RealTime control, this will queue + up the control change to be executed in a realtime context. + */ + SlavableAutomationControl::set_value (val, gcd); +} + +void +RecordEnableControl::actually_set_value (double val, Controllable::GroupControlDisposition gcd) +{ + if (val && !_recordable.can_be_record_enabled()) { + std::cerr << "rec-enable not allowed\n"; + return; + } + + SlavableAutomationControl::actually_set_value (val, gcd); +} + |