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osc.h

/*
 * Copyright (C) 2006 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 */

#ifndef ardour_osc_h
#define ardour_osc_h

#include <string>

#include <sys/time.h>
#include <pthread.h>

#include <lo/lo.h>

#include <sigc++/sigc++.h>

#include <ardour/types.h>

#include <control_protocol/basic_ui.h>

namespace ARDOUR {
      class Session;
      class Route;

class OSC : public BasicUI, public sigc::trackable
{
  public:
      OSC (uint32_t port);
      virtual ~OSC();
      
      void set_session (ARDOUR::Session&);
      int start ();
      int stop ();

  private:
      uint32_t _port;
      volatile bool _ok;
      volatile bool _shutdown;
      lo_server _osc_server;
      lo_server _osc_unix_server;
      std::string _osc_unix_socket_path;
      std::string _osc_url_file;
      pthread_t _osc_thread;
      int _request_pipe[2];

      static void * _osc_receiver(void * arg);
      void osc_receiver();
      void send(); // This should accept an OSC payload

      bool init_osc_thread ();
      void terminate_osc_thread ();
      void poke_osc_thread ();

      void register_callbacks ();

      void session_going_away ();

      // Handlers for "Application Hook" signals
      void session_loaded( ARDOUR::Session& );
      void session_exported( std::string, std::string );
      // end "Application Hook" handles

      std::string get_server_url ();
      std::string get_unix_server_url ();

      int current_value (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data);

#define PATH_CALLBACK(name) \
        static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
            return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
        } \
        int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
            name (); \
            return 0; \
      }

      PATH_CALLBACK(add_marker);
      PATH_CALLBACK(loop_toggle);
      PATH_CALLBACK(goto_start);
      PATH_CALLBACK(goto_end);
      PATH_CALLBACK(rewind);
      PATH_CALLBACK(ffwd);
      PATH_CALLBACK(transport_stop);
      PATH_CALLBACK(transport_play);
      PATH_CALLBACK(save_state);
      PATH_CALLBACK(prev_marker);
      PATH_CALLBACK(next_marker);
      PATH_CALLBACK(undo);
      PATH_CALLBACK(redo);
      PATH_CALLBACK(toggle_punch_in);
      PATH_CALLBACK(toggle_punch_out);
      PATH_CALLBACK(rec_enable_toggle);
      PATH_CALLBACK(toggle_all_rec_enables);

#define PATH_CALLBACK1(name,type,optional)                              \
        static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
            return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
        } \
        int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
                if (argc > 0) {                                   \
                  name (optional argv[0]->type);            \
                }                                     \
            return 0;                                 \
      }

      PATH_CALLBACK1(set_transport_speed,f,);
      PATH_CALLBACK1(access_action,s,&);

#define PATH_CALLBACK2(name,arg1type,arg2type)              \
        static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
            return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
        } \
        int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
                if (argc > 1) {                                   \
                  name (argv[0]->arg1type, argv[1]->arg2type); \
                }                                     \
            return 0;                                 \
      }

      PATH_CALLBACK2(locate,i,i);
      PATH_CALLBACK2(route_mute,i,i);
      PATH_CALLBACK2(route_solo,i,i);
      PATH_CALLBACK2(route_recenable,i,i);
      PATH_CALLBACK2(route_set_gain_abs,i,f);
      PATH_CALLBACK2(route_set_gain_dB,i,f);

      int route_mute (int rid, int yn);
      int route_solo (int rid, int yn);
      int route_recenable (int rid, int yn);
      int route_set_gain_abs (int rid, float level);
      int route_set_gain_dB (int rid, float dB);
};

}

#endif // ardour_osc_h

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