libs/surfaces/osc/osc.h

   1 /*
   2  * Copyright (C) 2006-2009 Paul Davis
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  *
  18  */
  19
  20 #ifndef ardour_osc_h
  21 #define ardour_osc_h
  22
  23 #include <string>
  24
  25 #include <sys/time.h>
  26 #include <pthread.h>
  27
  28 #include <boost/shared_ptr.hpp>
  29
  30 #include <lo/lo.h>
  31
  32 #include <glibmm/main.h>
  33
  34 #include "pbd/abstract_ui.h"
  35
  36 #include "ardour/types.h"
  37 #include "control_protocol/control_protocol.h"
  38
  39 class OSCControllable;
  40 class OSCRouteObserver;
  41
  42 namespace ARDOUR {
  43 class Session;
  44 class Route;
  45 }
  46
  47 /* this is mostly a placeholder because I suspect that at some
  48    point we will want to add more members to accomodate
  49    certain types of requests to the MIDI UI
  50 */
  51
  52 struct OSCUIRequest : public BaseUI::BaseRequestObject {
  53   public:
  54         OSCUIRequest () {}
  55         ~OSCUIRequest() {}
  56 };
  57
  58 class OSC : public ARDOUR::ControlProtocol, public AbstractUI<OSCUIRequest>
  59 {
  60   public:
  61         OSC (ARDOUR::Session&, uint32_t port);
  62         virtual ~OSC();
  63
  64         static OSC* instance() { return _instance; }
  65
  66         XMLNode& get_state ();
  67         int set_state (const XMLNode&, int version);
  68
  69         int set_active (bool yn);
  70         bool get_active () const;
  71         int set_feedback (bool yn);
  72         bool get_feedback () const;
  73
  74         void set_namespace_root (std::string);
  75
  76         int start ();
  77         int stop ();
  78
  79   protected:
  80         void thread_init ();
  81         void do_request (OSCUIRequest*);
  82
  83         GSource* local_server;
  84         GSource* remote_server;
  85
  86         bool osc_input_handler (Glib::IOCondition, lo_server);
  87
  88   private:
  89         uint32_t _port;
  90         volatile bool _ok;
  91         volatile bool _shutdown;
  92         lo_server _osc_server;
  93         lo_server _osc_unix_server;
  94         std::string _osc_unix_socket_path;
  95         std::string _osc_url_file;
  96         std::string _namespace_root;
  97         bool _send_route_changes;
  98
  99         void register_callbacks ();
 100
 101         void route_added (ARDOUR::RouteList&);
 102
 103         // Handlers for "Application Hook" signals
 104         void session_loaded (ARDOUR::Session&);
 105         void session_exported (std::string, std::string);
 106
 107         // end "Application Hook" handles
 108
 109         std::string get_server_url ();
 110         std::string get_unix_server_url ();
 111
 112         void send_current_value (const char* path, lo_arg** argv, int argc, lo_message msg);
 113         void current_value_query (const char* path, size_t len, lo_arg **argv, int argc, lo_message msg);
 114
 115         int current_value (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data);
 116
 117         int catchall (const char *path, const char *types, lo_arg **argv, int argc, void *data);
 118         static int _catchall (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data);
 119
 120         void routes_list (lo_message msg);
 121         void transport_frame(lo_message msg);
 122
 123 #define PATH_CALLBACK_MSG(name)                                 \
 124         static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
 125                 return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
 126         } \
 127         int cb_ ## name (const char *, const char *, lo_arg **argv, int argc, void *data) { \
 128                 name (data);            \
 129                 return 0;               \
 130         }
 131
 132         PATH_CALLBACK_MSG(routes_list);
 133         PATH_CALLBACK_MSG(transport_frame);
 134
 135 #define PATH_CALLBACK(name) \
 136         static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
 137                 return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
 138         } \
 139         int cb_ ## name (const char *, const char *, lo_arg **, int, void *) { \
 140                 name (); \
 141                 return 0; \
 142         }
 143
 144         PATH_CALLBACK(add_marker);
 145         PATH_CALLBACK(loop_toggle);
 146         PATH_CALLBACK(goto_start);
 147         PATH_CALLBACK(goto_end);
 148         PATH_CALLBACK(rewind);
 149         PATH_CALLBACK(ffwd);
 150         PATH_CALLBACK(transport_stop);
 151         PATH_CALLBACK(transport_play);
 152         PATH_CALLBACK(save_state);
 153         PATH_CALLBACK(prev_marker);
 154         PATH_CALLBACK(next_marker);
 155         PATH_CALLBACK(undo);
 156         PATH_CALLBACK(redo);
 157         PATH_CALLBACK(toggle_punch_in);
 158         PATH_CALLBACK(toggle_punch_out);
 159         PATH_CALLBACK(rec_enable_toggle);
 160         PATH_CALLBACK(toggle_all_rec_enables);
 161
 162 #define PATH_CALLBACK1(name,type,optional)                                      \
 163         static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
 164                 return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
 165         } \
 166         int cb_ ## name (const char *, const char *, lo_arg **argv, int argc, void *) { \
 167                 if (argc > 0) {                                         \
 168                         name (optional argv[0]->type);          \
 169                 }                                                       \
 170                 return 0;                                               \
 171         }
 172
 173         PATH_CALLBACK1(set_transport_speed,f,);
 174         PATH_CALLBACK1(access_action,s,&);
 175
 176 #define PATH_CALLBACK2(name,arg1type,arg2type)                  \
 177         static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
 178                 return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
 179         } \
 180         int cb_ ## name (const char *, const char *, lo_arg **argv, int argc, void *) { \
 181                 if (argc > 1) {                                         \
 182                         name (argv[0]->arg1type, argv[1]->arg2type); \
 183                 }                                                       \
 184                 return 0;                                               \
 185         }
 186
 187 #define PATH_CALLBACK3(name,arg1type,arg2type,arg3type)                \
 188         static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
 189                return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
 190         } \
 191         int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
 192                 if (argc > 1) {                                                \
 193                  name (argv[0]->arg1type, argv[1]->arg2type,argv[2]->arg3type); \
 194                 }                                                      \
 195                return 0;                                               \
 196        }
 197
 198 #define PATH_CALLBACK4(name,arg1type,arg2type,arg3type,arg4type)               \
 199         static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
 200                return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
 201         } \
 202         int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
 203                 if (argc > 1) {                                                \
 204                  name (argv[0]->arg1type, argv[1]->arg2type,argv[2]->arg3type,argv[3]->arg4type); \
 205                 }                                                      \
 206                return 0;                                               \
 207        }
 208
 209         PATH_CALLBACK2(locate,i,i);
 210         PATH_CALLBACK2(route_mute,i,i);
 211         PATH_CALLBACK2(route_solo,i,i);
 212         PATH_CALLBACK2(route_recenable,i,i);
 213         PATH_CALLBACK2(route_set_gain_abs,i,f);
 214         PATH_CALLBACK2(route_set_gain_dB,i,f);
 215         PATH_CALLBACK2(route_set_pan_stereo_position,i,f);
 216         PATH_CALLBACK2(route_set_pan_stereo_width,i,f);
 217         PATH_CALLBACK4(route_plugin_parameter,i,i,i,f);
 218         PATH_CALLBACK3(route_plugin_parameter_print,i,i,i);
 219
 220         int route_mute (int rid, int yn);
 221         int route_solo (int rid, int yn);
 222         int route_recenable (int rid, int yn);
 223         int route_set_gain_abs (int rid, float level);
 224         int route_set_gain_dB (int rid, float dB);
 225         int route_set_pan_stereo_position (int rid, float left_right_fraction);
 226         int route_set_pan_stereo_width (int rid, float percent);
 227         int route_plugin_parameter (int rid, int piid,int par, float val);
 228         int route_plugin_parameter_print (int rid, int piid,int par);
 229
 230         void listen_to_route (boost::shared_ptr<ARDOUR::Route>, lo_address);
 231         void end_listen (boost::shared_ptr<ARDOUR::Route>, lo_address);
 232         void drop_route (boost::weak_ptr<ARDOUR::Route>);
 233
 234         void route_name_changed (const PBD::PropertyChange&, boost::weak_ptr<ARDOUR::Route> r, lo_address addr);
 235
 236         void update_clock ();
 237
 238
 239         typedef std::list<OSCRouteObserver*> RouteObservers;
 240
 241         RouteObservers route_observers;
 242
 243         static OSC* _instance;
 244 };
 245
 246 #endif // ardour_osc_h