(FULL) not-yet-complete JACK session management patch (TODO: get program name, vary snapshot name, arrange quit when necessary)
git-svn-id: svn://localhost/ardour2/branches/3.0@6841 d708f5d6-7413-0410-9779-e7cbd77b26cf
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6
Makefile
6
Makefile
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@ -1,3 +1,7 @@
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all: waf
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waf:
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./waf
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cscope: cscope.out
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cscope.out: cscope.files
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@ -6,4 +10,4 @@ cscope.out: cscope.files
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cscope.files:
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find . -name '*.[ch]' -o -name '*.cc' > $@
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.PHONY: all cscope.files sconsi cscope
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.PHONY: all cscope.files sconsi cscope waf
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@ -40,6 +40,10 @@
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#include "ardour/session_handle.h"
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#include "ardour/types.h"
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#ifdef HAVE_JACK_SESSION
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#include <jack/session.h>
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#endif
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namespace ARDOUR {
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class InternalPort;
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@ -52,7 +56,7 @@ class AudioEngine : public SessionHandlePtr
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public:
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typedef std::set<Port*> Ports;
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AudioEngine (std::string client_name);
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AudioEngine (std::string client_name, std::string session_uuid);
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virtual ~AudioEngine ();
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jack_client_t* jack() const;
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@ -201,6 +205,11 @@ _ the regular process() call to session->process() is not made.
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PBD::Signal0<void> GraphReordered;
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#ifdef HAVE_JACK_SESSION
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PBD::Signal1<void,jack_session_event_t *> JackSessionEvent;
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#endif
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/* this signal is emitted if the sample rate changes */
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PBD::Signal1<void,nframes_t> SampleRateChanged;
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@ -263,6 +272,9 @@ _ the regular process() call to session->process() is not made.
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void port_registration_failure (const std::string& portname);
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static int _xrun_callback (void *arg);
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#ifdef HAVE_JACK_SESSION
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static void _session_callback (jack_session_event_t *event, void *arg);
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#endif
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static int _graph_order_callback (void *arg);
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static int _process_callback (nframes_t nframes, void *arg);
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static int _sample_rate_callback (nframes_t nframes, void *arg);
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@ -277,7 +289,7 @@ _ the regular process() call to session->process() is not made.
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int jack_bufsize_callback (nframes_t);
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int jack_sample_rate_callback (nframes_t);
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int connect_to_jack (std::string client_name);
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int connect_to_jack (std::string client_name, std::string session_uuid);
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static void halted (void *);
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@ -54,6 +54,10 @@
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#include "ardour/timecode.h"
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#include "ardour/interpolation.h"
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#ifdef HAVE_JACK_SESSION
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#include <jack/session.h>
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#endif
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class XMLTree;
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class XMLNode;
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class AEffect;
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@ -348,6 +352,9 @@ class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionLi
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nframes_t worst_input_latency () const { return _worst_input_latency; }
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nframes_t worst_track_latency () const { return _worst_track_latency; }
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#ifdef HAVE_JACK_SESSION
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void jack_session_event (jack_session_event_t* event);
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#endif
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int save_state (std::string snapshot_name, bool pending = false);
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int restore_state (std::string snapshot_name);
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int save_template (std::string template_name);
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@ -61,7 +61,7 @@ AudioEngine* AudioEngine::_instance = 0;
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#define GET_PRIVATE_JACK_POINTER(j) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return; }
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#define GET_PRIVATE_JACK_POINTER_RET(j,r) jack_client_t* _priv_jack = (jack_client_t*) (j); if (!_priv_jack) { return r; }
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AudioEngine::AudioEngine (string client_name)
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AudioEngine::AudioEngine (string client_name, string session_uuid)
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: ports (new Ports)
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{
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_instance = this; /* singleton */
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@ -81,7 +81,7 @@ AudioEngine::AudioEngine (string client_name)
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m_meter_thread = 0;
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g_atomic_int_set (&m_meter_exit, 0);
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if (connect_to_jack (client_name)) {
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if (connect_to_jack (client_name, session_uuid)) {
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throw NoBackendAvailable ();
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}
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@ -188,6 +188,10 @@ AudioEngine::start ()
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jack_set_sample_rate_callback (_priv_jack, _sample_rate_callback, this);
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jack_set_buffer_size_callback (_priv_jack, _bufsize_callback, this);
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jack_set_xrun_callback (_priv_jack, _xrun_callback, this);
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#ifdef HAVE_JACK_SESSION
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if( jack_set_session_callback )
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jack_set_session_callback (_priv_jack, _session_callback, this);
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#endif
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jack_set_sync_callback (_priv_jack, _jack_sync_callback, this);
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jack_set_freewheel_callback (_priv_jack, _freewheel_callback, this);
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jack_set_port_registration_callback (_priv_jack, _registration_callback, this);
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@ -299,6 +303,17 @@ AudioEngine::_xrun_callback (void *arg)
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return 0;
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}
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#ifdef HAVE_JACK_SESSION
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void
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AudioEngine::_session_callback (jack_session_event_t *event, void *arg)
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{
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printf( "helo.... " );
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AudioEngine* ae = static_cast<AudioEngine*> (arg);
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if (ae->connected()) {
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ae->JackSessionEvent ( event ); /* EMIT SIGNAL */
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}
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}
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#endif
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int
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AudioEngine::_graph_order_callback (void *arg)
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{
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@ -1133,14 +1148,19 @@ AudioEngine::remove_all_ports ()
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}
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int
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AudioEngine::connect_to_jack (string client_name)
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AudioEngine::connect_to_jack (string client_name, string session_uuid)
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{
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jack_options_t options = JackNullOption;
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jack_status_t status;
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const char *server_name = NULL;
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jack_client_name = client_name; /* might be reset below */
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_jack = jack_client_open (jack_client_name.c_str(), options, &status, server_name);
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#ifdef HAVE_JACK_SESSION
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if (! session_uuid.empty())
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_jack = jack_client_open (jack_client_name.c_str(), JackSessionID, &status, session_uuid.c_str());
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else
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#endif
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_jack = jack_client_open (jack_client_name.c_str(), options, &status, server_name);
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if (_jack == NULL) {
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// error message is not useful here
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@ -1193,7 +1213,7 @@ AudioEngine::reconnect_to_jack ()
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Glib::usleep (250000);
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}
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if (connect_to_jack (jack_client_name)) {
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if (connect_to_jack (jack_client_name, "")) {
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error << _("failed to connect to JACK") << endmsg;
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return -1;
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}
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jack_set_sample_rate_callback (_priv_jack, _sample_rate_callback, this);
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jack_set_buffer_size_callback (_priv_jack, _bufsize_callback, this);
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jack_set_xrun_callback (_priv_jack, _xrun_callback, this);
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#ifdef HAVE_JACK_SESSION
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if( jack_set_session_callback )
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jack_set_session_callback (_priv_jack, _session_callback, this);
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#endif
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jack_set_sync_callback (_priv_jack, _jack_sync_callback, this);
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jack_set_freewheel_callback (_priv_jack, _freewheel_callback, this);
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@ -725,6 +725,35 @@ Session::remove_state (string snapshot_name)
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sys::remove (xml_path);
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}
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#ifdef HAVE_JACK_SESSION
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void
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Session::jack_session_event( jack_session_event_t * event )
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{
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if (save_state ("jacksession_snap")) {
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event->flags = JackSessionSaveError;
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} else {
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sys::path xml_path (_session_dir->root_path());
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xml_path /= legalize_for_path ("jacksession_snap") + statefile_suffix;
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string cmd ("PROG_NAME -U ");
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cmd += event->client_uuid;
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cmd += ' \"';
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cmd += xml_path.to_string();
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cmd += '\"';
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event->command_line = strdup (cmd.c_str());
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}
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jack_session_reply (_engine.jack(), event);
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if (event->type == JackSessionSaveAndQuit) {
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// TODO: make ardour quit.
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}
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jack_session_event_free( event );
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}
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#endif
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int
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Session::save_state (string snapshot_name, bool pending)
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{
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@ -239,6 +239,8 @@ def configure(conf):
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conf.check(header_name='sys/vfs.h', define_name='HAVE_SYS_VFS_H')
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conf.check(header_name='wordexp.h', define_name='HAVE_WORDEXP')
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conf.check(header_name='jack/session.h', define_name='HAVE_JACK_SESSION')
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if flac_supported():
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conf.define ('HAVE_FLAC', 1)
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4
wscript
4
wscript
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@ -461,6 +461,8 @@ def configure(conf):
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autowaf.check_header(conf, 'boost/signals2.hpp', mandatory = True)
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autowaf.check_header(conf, 'jack/session.h', define="JACK_SESSION")
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conf.check_cc(fragment = "#include <boost/version.hpp>\nint main(void) { return (BOOST_VERSION >= 103900 ? 0 : 1); }\n",
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execute = "1",
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mandatory = True,
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autowaf.display_msg(conf, 'VST Support', opts.vst)
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if opts.vst:
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conf.define('VST_SUPPORT', 1)
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if bool(conf.env['JACK_SESSION']):
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conf.define ('HAVE_JACK_SESSION', 1)
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autowaf.display_msg(conf, 'Wiimote Support', opts.wiimote)
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if opts.wiimote:
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conf.define('WIIMOTE',1)
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