gui/jack_proxy.hpp

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2008, 2009 Nedko Arnaudov <nedko@arnaudov.name>
   6  *
   7  **************************************************************************
   8  * This file contains interface to code that interfaces JACK through D-Bus
   9  **************************************************************************
  10  *
  11  * LADI Session Handler is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * LADI Session Handler is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  23  * or write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #ifndef PATCHAGE_JACKDBUSDRIVER_HPP
  28 #define PATCHAGE_JACKDBUSDRIVER_HPP
  29
  30 #include <iostream>
  31 #include <boost/shared_ptr.hpp>
  32 #include <dbus/dbus.h>
  33
  34 #include "Patchage.hpp"
  35
  36 class jack_proxy
  37 {
  38 public:
  39   jack_proxy(Patchage* app);
  40   ~jack_proxy();
  41
  42   bool is_started();
  43   bool is_realtime();
  44
  45   bool
  46   connect(
  47     const char * client1_name,
  48     const char * port1_name,
  49     const char * client2_name,
  50     const char * port2_name);
  51
  52   bool
  53   disconnect(
  54     const char * client1_name,
  55     const char * port1_name,
  56     const char * client2_name,
  57     const char * port2_name);
  58
  59   void reset_xruns();
  60
  61   uint32_t buffer_size();
  62   bool set_buffer_size(uint32_t size);
  63
  64   float sample_rate();
  65
  66   size_t xruns();
  67
  68   float get_dsp_load();
  69
  70   float get_max_dsp_load();
  71   void reset_max_dsp_load();
  72
  73   void
  74   start_server();
  75
  76   void
  77   stop_server();
  78
  79   sigc::signal0<void> signal_started;
  80   sigc::signal0<void> signal_stopped;
  81
  82 private:
  83   void error_msg(const std::string& msg) const;
  84   void info_msg(const std::string& msg) const;
  85
  86   bool
  87   call(
  88     bool response_expected,
  89     const char* iface,
  90     const char* method,
  91     DBusMessage ** reply_ptr_ptr,
  92     int in_type,
  93     ...);
  94
  95   void
  96   update_attached();
  97
  98   static
  99   DBusHandlerResult
 100   dbus_message_hook(
 101     DBusConnection *connection,
 102     DBusMessage *message,
 103     void *me);
 104
 105   void
 106   on_jack_appeared();
 107
 108   void
 109   on_jack_disappeared();
 110
 111 private:
 112   Patchage* _app;
 113
 114   bool _server_responding;
 115   bool _server_started;
 116
 117   dbus_uint64_t _graph_version;
 118
 119   float _max_dsp_load;
 120 };
 121
 122 #endif // PATCHAGE_JACKDBUSDRIVER_HPP