92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
/*
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Copyright (C) 2013 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "jack_connection.h"
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#include "jack_audiobackend.h"
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using namespace ARDOUR;
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static boost::shared_ptr<JACKAudioBackend> backend;
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static boost::shared_ptr<JackConnection> jack_connection;
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static boost::shared_ptr<AudioBackend> backend_factory (AudioEngine& ae);
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static int instantiate (const std::string& arg1, const std::string& arg2);
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static int deinstantiate ();
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static bool already_configured ();
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static bool available ();
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static ARDOUR::AudioBackendInfo _descriptor = {
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"JACK",
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instantiate,
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deinstantiate,
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backend_factory,
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already_configured,
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available
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};
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static boost::shared_ptr<AudioBackend>
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backend_factory (AudioEngine& ae)
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{
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if (!jack_connection) {
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return boost::shared_ptr<AudioBackend>();
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}
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if (!backend) {
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backend.reset (new JACKAudioBackend (ae, _descriptor, jack_connection));
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}
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return backend;
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}
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static int
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instantiate (const std::string& arg1, const std::string& arg2)
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{
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try {
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jack_connection.reset (new JackConnection (arg1, arg2));
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} catch (...) {
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return -1;
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}
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return 0;
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}
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static int
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deinstantiate ()
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{
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backend.reset ();
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jack_connection.reset ();
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return 0;
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}
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static bool
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already_configured ()
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{
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return !JackConnection::in_control ();
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}
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static bool
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available ()
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{
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return have_libjack() ? false : true;
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}
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extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor() { return &_descriptor; }
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