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gx_main.cpp

/*
 * Copyright (C) 2009, 2010 Hermann Meyer, James Warden, Andreas Degert
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * ---------------------------------------------------------------------------
 *
 *    name         : "guitarix"
 *    version      : "0.04.7"
 *    authors      : "hermann meyer" & "james warden"
 *    contributors : "Julius O. Smith (jos at ccrma.stanford.edu)"
 *    license      : "GPL"
 *    copyright    : "(c)brummer 2008"
 *    reference    : "http://ccrma.stanford.edu/realsimple/faust_strings/"
 *
 *    Code prototype generated with Faust 0.9.9.4f (http://faust.grame.fr)
 * ----------------------------------------------------------------------------
 *
 *    This is guitarix main.
 *
 * ----------------------------------------------------------------------------
 */

#include "giomm/init.h"
#include "gtkmm/main.h"
#include "guitarix.h"

using namespace gx_system;


void init_unix_signal_handlers()
{
      /* ----- block signal USR1 ---------
      ** inherited by all threads which are created later
      ** USR1 is processed synchronously by gx_signal_helper_thread
      */
      sigset_t waitset;
      sigemptyset(&waitset);
      sigaddset(&waitset, SIGUSR1);
      sigaddset(&waitset, SIGCHLD);
      sigprocmask(SIG_BLOCK, &waitset, NULL);

      //----- set unix signal handlers for proper shutdown
      signal(SIGQUIT, gx_signal_handler);
      signal(SIGTERM, gx_signal_handler);
      signal(SIGHUP,  gx_signal_handler);
      signal(SIGINT,  gx_signal_handler);
      //signal(SIGSEGV, gx_signal_handler); // no good, quits application silently
}

/* --------- Guitarix main ---------- */
int main(int argc, char *argv[])
{
      init_unix_signal_handlers();

      // ----------------------- init basic subsystems ----------------------
      Glib::thread_init();
      Glib::init();

      // ------ initialize parameter list ------
      gx_preset::init();
      gx_gui::parameter_map.set_init_values();

      // ---------------------- user options handling ------------------
      string optvar[NUM_SHELL_VAR];
      gx_process_cmdline_options(argc, argv, optvar);
      Gtk::Main main(argc, argv);

      // ---------------- Check for working user directory  -------------
      gx_system::gx_version_check();

      // ------ time measurement (debug) ------
#ifndef NDEBUG
      add_time_measurement();
#endif

      // ----------------------- init GTK interface----------------------
      gx_gui::GxMainInterface* gui = gx_gui::GxMainInterface::instance("guitarix");
      gui->setup();
#ifdef EXPERIMENTAL
      gx_engine::faust_setup();
#endif

      // ---------------------- initialize jack client ------------------
      if (gx_jack::gx_jack_init(optvar))
      {
            // -------- initialize guitarix engine --------------------------
            gx_engine::gx_engine_init(optvar);

            // -------- set jack callbacks and activation -------------------
            gx_jack::gx_jack_callbacks_and_activate();

            // -------- init port connections
            gx_jack::gx_jack_init_port_connection(optvar);
      }

      // ----------------------- run GTK main loop ----------------------
      gx_set_override_options(optvar);
      gx_ui::GxUI::updateAllGuis();
      gui->show();

      if (gx_jack::client) {
          // -------- pitch tracker (needs jack thread running) -------------
            gx_engine::pitch_tracker.init();
      }

      gui->run();

      // ------------- shut things down
      gx_system::gx_clean_exit(NULL, NULL);

      return 0;
}

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