source/backend/engine/CarlaEngineOsc.hpp

   1 /*
   2  * Carla Plugin Host
   3  * Copyright (C) 2011-2020 Filipe Coelho <falktx@falktx.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of
   8  * the License, or any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * For a full copy of the GNU General Public License see the doc/GPL.txt file.
  16  */
  17
  18 #ifndef CARLA_ENGINE_OSC_HPP_INCLUDED
  19 #define CARLA_ENGINE_OSC_HPP_INCLUDED
  20
  21 #include "CarlaDefines.h"
  22
  23 #ifdef HAVE_LIBLO
  24
  25 #include "CarlaBackend.h"
  26 #include "CarlaJuceUtils.hpp"
  27 #include "CarlaPluginPtr.hpp"
  28 #include "CarlaOscUtils.hpp"
  29 #include "CarlaString.hpp"
  30
  31 #define CARLA_ENGINE_OSC_HANDLE_ARGS const CarlaPluginPtr& plugin, \
  32   const int argc, const lo_arg* const* const argv, const char* const types
  33
  34 #define CARLA_ENGINE_OSC_CHECK_OSC_TYPES(/* argc, types, */ argcToCompare, typesToCompare)                                     \
  35     /* check argument count */                                                                                                 \
  36     if (argc != argcToCompare)                                                                                                 \
  37     {                                                                                                                          \
  38         carla_stderr("CarlaEngineOsc::%s() - argument count mismatch: %i != %i", __FUNCTION__, argc, argcToCompare);           \
  39         return 1;                                                                                                              \
  40     }                                                                                                                          \
  41     if (argc > 0)                                                                                                              \
  42     {                                                                                                                          \
  43         /* check for nullness */                                                                                               \
  44         if (types == nullptr || typesToCompare == nullptr)                                                                     \
  45         {                                                                                                                      \
  46             carla_stderr("CarlaEngineOsc::%s() - argument types are null", __FUNCTION__);                                      \
  47             return 1;                                                                                                          \
  48         }                                                                                                                      \
  49         /* check argument types */                                                                                             \
  50         if (std::strcmp(types, typesToCompare) != 0)                                                                           \
  51         {                                                                                                                      \
  52             carla_stderr("CarlaEngineOsc::%s() - argument types mismatch: '%s' != '%s'", __FUNCTION__, types, typesToCompare); \
  53             return 1;                                                                                                          \
  54         }                                                                                                                      \
  55     }
  56
  57 CARLA_BACKEND_START_NAMESPACE
  58
  59 // -----------------------------------------------------------------------
  60
  61 class CarlaEngineOsc
  62 {
  63 public:
  64     CarlaEngineOsc(CarlaEngine* engine) noexcept;
  65     ~CarlaEngineOsc() noexcept;
  66
  67     void init(const char* name, int tcpPort, int udpPort) noexcept;
  68     void idle() const noexcept;
  69     void close() noexcept;
  70
  71     // -------------------------------------------------------------------
  72
  73     const CarlaString& getServerPathTCP() const noexcept
  74     {
  75         return fServerPathTCP;
  76     }
  77
  78     const CarlaString& getServerPathUDP() const noexcept
  79     {
  80         return fServerPathUDP;
  81     }
  82
  83     // -------------------------------------------------------------------
  84
  85     bool isControlRegisteredForTCP() const noexcept
  86     {
  87         return fControlDataTCP.target != nullptr;
  88     }
  89
  90     bool isControlRegisteredForUDP() const noexcept
  91     {
  92         return fControlDataUDP.target != nullptr;
  93     }
  94
  95     // -------------------------------------------------------------------
  96     // TCP
  97
  98     void sendCallback(EngineCallbackOpcode action, uint pluginId,
  99                       int value1, int value2, int value3,
 100                       float valuef, const char* valueStr) const noexcept;
 101     void sendPluginInfo(const CarlaPluginPtr& plugin) const noexcept;
 102     void sendPluginPortCount(const CarlaPluginPtr& plugin) const noexcept;
 103     void sendPluginParameterInfo(const CarlaPluginPtr& plugin, uint32_t index) const noexcept;
 104     void sendPluginDataCount(const CarlaPluginPtr& plugin) const noexcept;
 105     void sendPluginProgramCount(const CarlaPluginPtr& plugin) const noexcept;
 106     void sendPluginProgram(const CarlaPluginPtr& plugin, uint32_t index) const noexcept;
 107     void sendPluginMidiProgram(const CarlaPluginPtr& plugin, uint32_t index) const noexcept;
 108     void sendPluginCustomData(const CarlaPluginPtr& plugin, uint32_t index) const noexcept;
 109     void sendPluginInternalParameterValues(const CarlaPluginPtr& plugin) const noexcept;
 110     void sendPing() const noexcept;
 111     void sendResponse(int messageId, const char* error) const noexcept;
 112     void sendExit() const noexcept;
 113
 114     // -------------------------------------------------------------------
 115     // UDP
 116
 117     void sendRuntimeInfo() const noexcept;
 118     void sendParameterValue(uint pluginId, uint32_t index, float value) const noexcept;
 119     void sendPeaks(uint pluginId, const float peaks[4]) const noexcept;
 120
 121     // -------------------------------------------------------------------
 122
 123 private:
 124     CarlaEngine* const fEngine;
 125
 126     // for carla-control
 127     CarlaOscData fControlDataTCP;
 128     CarlaOscData fControlDataUDP;
 129
 130     CarlaString  fName;
 131     CarlaString  fServerPathTCP;
 132     CarlaString  fServerPathUDP;
 133     lo_server    fServerTCP;
 134     lo_server    fServerUDP;
 135
 136     // -------------------------------------------------------------------
 137
 138     int handleMessage(bool isTCP, const char* path,
 139                       int argc, const lo_arg* const* argv, const char* types, lo_message msg);
 140
 141     int handleMsgRegister(bool isTCP, int argc, const lo_arg* const* argv, const char* types, lo_address source);
 142     int handleMsgUnregister(bool isTCP, int argc, const lo_arg* const* argv, const char* types, lo_address source);
 143     int handleMsgControl(const char* method,
 144                          int argc, const lo_arg* const* argv, const char* types);
 145
 146     // Internal methods
 147     int handleMsgSetActive(CARLA_ENGINE_OSC_HANDLE_ARGS);
 148     int handleMsgSetDryWet(CARLA_ENGINE_OSC_HANDLE_ARGS);
 149     int handleMsgSetVolume(CARLA_ENGINE_OSC_HANDLE_ARGS);
 150     int handleMsgSetBalanceLeft(CARLA_ENGINE_OSC_HANDLE_ARGS);
 151     int handleMsgSetBalanceRight(CARLA_ENGINE_OSC_HANDLE_ARGS);
 152     int handleMsgSetPanning(CARLA_ENGINE_OSC_HANDLE_ARGS);
 153     int handleMsgSetParameterValue(CARLA_ENGINE_OSC_HANDLE_ARGS);
 154     int handleMsgSetParameterMappedControlIndex(CARLA_ENGINE_OSC_HANDLE_ARGS);
 155     int handleMsgSetParameterMappedRange(CARLA_ENGINE_OSC_HANDLE_ARGS);
 156     int handleMsgSetParameterMidiChannel(CARLA_ENGINE_OSC_HANDLE_ARGS);
 157     int handleMsgSetProgram(CARLA_ENGINE_OSC_HANDLE_ARGS);
 158     int handleMsgSetMidiProgram(CARLA_ENGINE_OSC_HANDLE_ARGS);
 159     int handleMsgNoteOn(CARLA_ENGINE_OSC_HANDLE_ARGS);
 160     int handleMsgNoteOff(CARLA_ENGINE_OSC_HANDLE_ARGS);
 161
 162     // -----------------------------------------------------------------------
 163
 164     static void osc_error_handler_TCP(int num, const char* msg, const char* path)
 165     {
 166         carla_stderr("CarlaEngineOsc::osc_error_handler_TCP(%i, \"%s\", \"%s\")", num, msg, path);
 167     }
 168
 169     static void osc_error_handler_UDP(int num, const char* msg, const char* path)
 170     {
 171         carla_stderr("CarlaEngineOsc::osc_error_handler_UDP(%i, \"%s\", \"%s\")", num, msg, path);
 172     }
 173
 174     static int osc_message_handler_TCP(const char* path, const char* types, lo_arg** argv, int argc, lo_message msg, void* userData)
 175     {
 176         return ((CarlaEngineOsc*)userData)->handleMessage(true, path, argc, argv, types, msg);
 177     }
 178
 179     static int osc_message_handler_UDP(const char* path, const char* types, lo_arg** argv, int argc, lo_message msg, void* userData)
 180     {
 181         return ((CarlaEngineOsc*)userData)->handleMessage(false, path, argc, argv, types, msg);
 182     }
 183
 184     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineOsc)
 185 };
 186
 187 // -----------------------------------------------------------------------
 188
 189 CARLA_BACKEND_END_NAMESPACE
 190
 191 #endif // HAVE_LIBLO
 192
 193 #endif // CARLA_ENGINE_OSC_HPP_INCLUDED