Start work regarding full OSC control

Signed-off-by: falkTX <falktx@falktx.com>

source/backend/CarlaEngine.hpp

@@ -999,7 +999,8 @@ public:
      * Call the main engine callback, if set.
      * May be called by plugins.
      */
-    virtual void callback(const EngineCallbackOpcode action, const uint pluginId,
+    virtual void callback(const bool sendHost, const bool sendOsc,
+                          const EngineCallbackOpcode action, const uint pluginId,
                           const int value1, const int value2, const int value3,
                           const float valuef, const char* const valueStr) noexcept;
 
@@ -1285,9 +1286,12 @@ public:
     // -------------------------------------------------------------------
     // OSC Controller stuff
 
+    void oscSend_control_callback(const EngineCallbackOpcode action, const uint pluginId,
+                                  const int value1, const int value2, const int value3,
+                                  const float valuef, const char* const valueStr) const noexcept;
     void oscSend_control_add_plugin_start(const uint pluginId, const char* const pluginName) const noexcept;
-    void oscSend_control_add_plugin_end(const uint pluginId) const noexcept;
-    void oscSend_control_remove_plugin(const uint pluginId) const noexcept;
+    // void oscSend_control_add_plugin_end(const uint pluginId) const noexcept;
+    // void oscSend_control_remove_plugin(const uint pluginId) const noexcept;
     void oscSend_control_set_plugin_info1(const uint pluginId, const PluginType type, const PluginCategory category, const uint hints, const int64_t uniqueId) const noexcept;
     void oscSend_control_set_plugin_info2(const uint pluginId, const char* const realName, const char* const label, const char* const maker, const char* const copyright) const noexcept;
     void oscSend_control_set_audio_count(const uint pluginId, const uint32_t ins, const uint32_t outs) const noexcept;
@@ -1298,18 +1302,18 @@ public:
     void oscSend_control_set_parameter_data(const uint pluginId, const uint32_t index, const ParameterType type, const uint hints, const char* const name, const char* const unit) const noexcept;
     void oscSend_control_set_parameter_ranges1(const uint pluginId, const uint32_t index, const float def, const float min, const float max) const noexcept;
     void oscSend_control_set_parameter_ranges2(const uint pluginId, const uint32_t index, const float step, const float stepSmall, const float stepLarge) const noexcept;
-    void oscSend_control_set_parameter_midi_cc(const uint pluginId, const uint32_t index, const int16_t cc) const noexcept;
-    void oscSend_control_set_parameter_midi_channel(const uint pluginId, const uint32_t index, const uint8_t channel) const noexcept;
-    void oscSend_control_set_parameter_value(const uint pluginId, const int32_t index, const float value) const noexcept; // may be used for internal params (< 0)
-    void oscSend_control_set_default_value(const uint pluginId, const uint32_t index, const float value) const noexcept;
-    void oscSend_control_set_current_program(const uint pluginId, const int32_t index) const noexcept;
-    void oscSend_control_set_current_midi_program(const uint pluginId, const int32_t index) const noexcept;
+    // void oscSend_control_set_parameter_midi_cc(const uint pluginId, const uint32_t index, const int16_t cc) const noexcept;
+    // void oscSend_control_set_parameter_midi_channel(const uint pluginId, const uint32_t index, const uint8_t channel) const noexcept;
+    void oscSend_control_set_output_parameter_value(const uint pluginId, const int32_t index, const float value) const noexcept;
+    // void oscSend_control_set_default_value(const uint pluginId, const uint32_t index, const float value) const noexcept;
+    // void oscSend_control_set_current_program(const uint pluginId, const int32_t index) const noexcept;
+    // void oscSend_control_set_current_midi_program(const uint pluginId, const int32_t index) const noexcept;
     void oscSend_control_set_program_name(const uint pluginId, const uint32_t index, const char* const name) const noexcept;
     void oscSend_control_set_midi_program_data(const uint pluginId, const uint32_t index, const uint32_t bank, const uint32_t program, const char* const name) const noexcept;
-    void oscSend_control_note_on(const uint pluginId, const uint8_t channel, const uint8_t note, const uint8_t velo) const noexcept;
-    void oscSend_control_note_off(const uint pluginId, const uint8_t channel, const uint8_t note) const noexcept;
+    // void oscSend_control_note_on(const uint pluginId, const uint8_t channel, const uint8_t note, const uint8_t velo) const noexcept;
+    // void oscSend_control_note_off(const uint pluginId, const uint8_t channel, const uint8_t note) const noexcept;
     void oscSend_control_set_peaks(const uint pluginId) const noexcept;
-    void oscSend_control_exit() const noexcept;
+    // void oscSend_control_exit() const noexcept;
 #endif
 
     CARLA_DECLARE_NON_COPY_CLASS(CarlaEngine)

source/backend/CarlaPlugin.hpp

@@ -523,7 +523,7 @@ public:
     void setBalanceLeftRT(const float value) noexcept;
     void setBalanceRightRT(const float value) noexcept;
     void setPanningRT(const float value) noexcept;
-#endif
+#endif // ! BUILD_BRIDGE_ALTERNATIVE_ARCH
 
     /*!
      * Set the plugin's midi control channel.

source/backend/engine/CarlaEngine.cpp

@@ -299,14 +299,9 @@ bool CarlaEngine::close()
         removeAllPlugins();
     }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (pData->osc.isControlRegistered())
-        oscSend_control_exit();
-#endif
-
     pData->close();
 
-    callback(ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0, 0.0f, nullptr);
+    callback(true, true, ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0, 0.0f, nullptr);
     return true;
 }
 
@@ -640,7 +635,7 @@ bool CarlaEngine::addPlugin(const BinaryType btype, const PluginType ptype,
         plugin->setActive(wasActive, true, true);
         plugin->setEnabled(true);
 
-        callback(ENGINE_CALLBACK_RELOAD_ALL, id, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_RELOAD_ALL, id, 0, 0, 0, 0.0f, nullptr);
     }
     else if (! pData->loadingProject)
 #endif
@@ -648,7 +643,7 @@ bool CarlaEngine::addPlugin(const BinaryType btype, const PluginType ptype,
         plugin->setEnabled(true);
 
         ++pData->curPluginCount;
-        callback(ENGINE_CALLBACK_PLUGIN_ADDED, id, 0, 0, 0, 0.0f, plugin->getName());
+        callback(true, true, ENGINE_CALLBACK_PLUGIN_ADDED, id, 0, 0, 0, 0.0f, plugin->getName());
 
         if (getType() != kEngineTypeBridge)
             plugin->setActive(true, false, true);
@@ -659,10 +654,6 @@ bool CarlaEngine::addPlugin(const BinaryType btype, const PluginType ptype,
 #endif
     }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    plugin->registerToOscClient();
-#endif
-
     return true;
 }
 
@@ -703,11 +694,6 @@ bool CarlaEngine::removePlugin(const uint id)
         plugin2->updateOscURL();
     }
     */
-
-# if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)
-    if (isOscControlRegistered())
-        oscSend_control_remove_plugin(id);
-# endif
 #else
     pData->curPluginCount = 0;
     carla_zeroStructs(pData->plugins, 1);
@@ -715,7 +701,7 @@ bool CarlaEngine::removePlugin(const uint id)
 
     delete plugin;
 
-    callback(ENGINE_CALLBACK_PLUGIN_REMOVED, id, 0, 0, 0, 0.0f, nullptr);
+    callback(true, true, ENGINE_CALLBACK_PLUGIN_REMOVED, id, 0, 0, 0, 0.0f, nullptr);
     return true;
 }
 
@@ -739,19 +725,11 @@ bool CarlaEngine::removeAllPlugins()
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)
         pData->graph.removeAllPlugins();
-
-# if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)
-    if (isOscControlRegistered())
-    {
-        for (uint i=0; i < curPluginCount; ++i)
-            oscSend_control_remove_plugin(curPluginCount-i-1);
-    }
-# endif
 #endif
 
     const ScopedActionLock sal(this, kEnginePostActionZeroCount, 0, 0);
 
-    callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+    callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
     for (uint i=0; i < curPluginCount; ++i)
     {
@@ -766,8 +744,8 @@ bool CarlaEngine::removeAllPlugins()
 
         carla_zeroFloats(pluginData.peaks, 4);
 
-        callback(ENGINE_CALLBACK_PLUGIN_REMOVED, id, 0, 0, 0, 0.0f, nullptr);
-        callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_PLUGIN_REMOVED, id, 0, 0, 0, 0.0f, nullptr);
+        callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
     }
 
     return true;
@@ -1123,7 +1101,7 @@ bool CarlaEngine::loadFile(const char* const filename)
         //nicerName
         if (addPlugin(PLUGIN_INTERNAL, nullptr, nicerName, "zynaddsubfx", 0, nullptr))
         {
-            callback(ENGINE_CALLBACK_UI_STATE_CHANGED, curPluginId, 0, 0, 0, 0.0f, nullptr);
+            callback(true, true, ENGINE_CALLBACK_UI_STATE_CHANGED, curPluginId, 0, 0, 0, 0.0f, nullptr);
 
             if (CarlaPlugin* const plugin = getPlugin(curPluginId))
                 plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, (extension == "xmz") ? "CarlaAlternateFile1" : "CarlaAlternateFile2", filename, true);
@@ -1313,7 +1291,8 @@ float CarlaEngine::getOutputPeak(const uint pluginId, const bool isLeft) const n
 // -----------------------------------------------------------------------
 // Callback
 
-void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginId,
+void CarlaEngine::callback(const bool sendHost, const bool sendOsc,
+                           const EngineCallbackOpcode action, const uint pluginId,
                            const int value1, const int value2, const int value3,
                            const float valuef, const char* const valueStr) noexcept
 {
@@ -1326,7 +1305,7 @@ void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginI
                     action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valuef, valueStr);
 #endif
 
-    if (pData->callback != nullptr)
+    if (sendHost && pData->callback != nullptr)
     {
         if (action == ENGINE_CALLBACK_IDLE)
             ++pData->isIdling;
@@ -1345,6 +1324,37 @@ void CarlaEngine::callback(const EngineCallbackOpcode action, const uint pluginI
         if (action == ENGINE_CALLBACK_IDLE)
             --pData->isIdling;
     }
+
+    if (sendOsc)
+    {
+#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
+        if (pData->osc.isControlRegistered())
+        {
+#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
+            switch (action)
+            {
+            case ENGINE_CALLBACK_PLUGIN_ADDED:
+            case ENGINE_CALLBACK_RELOAD_ALL:
+            {
+                CarlaPlugin* const plugin = pData->plugins[pluginId].plugin;
+                CARLA_SAFE_ASSERT_BREAK(plugin != nullptr);
+
+                plugin->registerToOscClient();
+                break;
+            }
+
+            case ENGINE_CALLBACK_IDLE:
+                return;
+
+            default:
+                break;
+            }
+#endif
+
+            oscSend_control_callback(action, pluginId, value1, value2, value3, valuef, valueStr);
+        }
+#endif
+    }
 }
 
 void CarlaEngine::setCallback(const EngineCallbackFunc func, void* const ptr) noexcept
@@ -1827,7 +1837,7 @@ void CarlaEngine::bufferSizeChanged(const uint32_t newBufferSize)
         }
     }
 
-    callback(ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0, 0.0f, nullptr);
+    callback(true, true, ENGINE_CALLBACK_BUFFER_SIZE_CHANGED, 0, static_cast<int>(newBufferSize), 0, 0, 0.0f, nullptr);
 }
 
 void CarlaEngine::sampleRateChanged(const double newSampleRate)
@@ -1856,7 +1866,7 @@ void CarlaEngine::sampleRateChanged(const double newSampleRate)
         }
     }
 
-    callback(ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);
+    callback(true, true, ENGINE_CALLBACK_SAMPLE_RATE_CHANGED, 0, 0, 0, 0, static_cast<float>(newSampleRate), nullptr);
 }
 
 void CarlaEngine::offlineModeChanged(const bool isOfflineNow)
@@ -2139,13 +2149,13 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
 
     if (! (xmlType.equalsIgnoreCase("carla-project") || isPreset))
     {
-        callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0, 0.0f, nullptr);
         setLastError("Not a valid Carla project or preset file");
         return false;
     }
 
     pData->actionCanceled = false;
-    callback(ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 1, 0, 0, 0.0f, "Loading project");
+    callback(true, true, ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 1, 0, 0, 0.0f, "Loading project");
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
     const ScopedValueSetter<bool> _svs2(pData->loadingProject, true, false);
@@ -2155,7 +2165,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
     xmlElement = xmlDoc.getDocumentElement(false);
     CARLA_SAFE_ASSERT_RETURN_ERR(xmlElement != nullptr, "Failed to completely parse project file");
 
-    callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+    callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
     if (pData->aboutToClose)
         return true;
@@ -2280,7 +2290,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
             setOption(static_cast<EngineOption>(option), value, valueStr);
         }
 
-        callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
         if (pData->aboutToClose)
             return true;
@@ -2304,7 +2314,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
             if (bpm >= 20.0 && bpm < 400.0)
                 pData->time.setBPM(bpm);
 
-            callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (pData->aboutToClose)
                 return true;
@@ -2327,7 +2337,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
             CarlaStateSave stateSave;
             stateSave.fillFromXmlElement(isPreset ? xmlElement.get() : elem);
 
-            callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (pData->aboutToClose)
                 return true;
@@ -2351,7 +2361,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
 
                     if (CarlaPlugin* const plugin = pData->plugins[pluginId].plugin)
                     {
-                        callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+                        callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
                         if (pData->aboutToClose)
                             return true;
@@ -2380,11 +2390,10 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
                         plugin->setPanning(stateSave.panning, true, true);
                         plugin->setCtrlChannel(stateSave.ctrlChannel, true, true);
                         plugin->setActive(stateSave.active, true, true);
+                        plugin->setEnabled(true);
 
                         ++pData->curPluginCount;
-
-                        plugin->setEnabled(true);
-                        callback(ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0, 0.0f, plugin->getName());
+                        callback(true, true, ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0, 0.0f, plugin->getName());
 
                         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)
                             pData->graph.addPlugin(plugin);
@@ -2502,7 +2511,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
 
                 if (CarlaPlugin* const plugin = pData->plugins[pluginId].plugin)
                 {
-                    callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+                    callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
                     if (pData->aboutToClose)
                         return true;
@@ -2526,7 +2535,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
                     plugin->setEnabled(true);
 
                     ++pData->curPluginCount;
-                    callback(ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0, 0.0f, plugin->getName());
+                    callback(true, true, ENGINE_CALLBACK_PLUGIN_ADDED, pluginId, 0, 0, 0, 0.0f, plugin->getName());
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
                     if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)
@@ -2546,8 +2555,8 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
 
         if (isPreset)
         {
-            callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0, 0.0f, nullptr);
-            callback(ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 0, 0, 0, 0.0f, "Loading project");
+            callback(true, true, ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0, 0.0f, nullptr);
+            callback(true, true, ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 0, 0, 0, 0.0f, "Loading project");
             return true;
         }
     }
@@ -2562,7 +2571,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
             plugin->setCustomData(CUSTOM_DATA_TYPE_STRING, "__CarlaPingOnOff__", "true", false);
     }
 
-    callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+    callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
     if (pData->aboutToClose)
         return true;
@@ -2610,7 +2619,7 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
                     restorePatchbayConnection(false, sourcePort, targetPort, !isUsingExternal);
             }
 
-            callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (pData->aboutToClose)
                 return true;
@@ -2692,8 +2701,8 @@ bool CarlaEngine::loadProjectInternal(water::XmlDocument& xmlDoc)
     }
 #endif
 
-    callback(ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0, 0.0f, nullptr);
-    callback(ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 0, 0, 0, 0.0f, "Loading project");
+    callback(true, true, ENGINE_CALLBACK_PROJECT_LOAD_FINISHED, 0, 0, 0, 0, 0.0f, nullptr);
+    callback(true, true, ENGINE_CALLBACK_CANCELABLE_ACTION, 0, 0, 0, 0, 0.0f, "Loading project");
     return true;
 }
 

source/backend/engine/CarlaEngineBridge.cpp

@@ -576,15 +576,16 @@ public:
         {
             carla_stderr("Did not receive ping message from server for 30 secs, closing...");
             signalThreadShouldExit();
-            callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);
+            callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);
         }
     }
 
-    void callback(const EngineCallbackOpcode action, const uint pluginId,
+    void callback(const bool sendHost, const bool sendOsc,
+                  const EngineCallbackOpcode action, const uint pluginId,
                   const int value1, const int value2, const int value3,
                   const float valuef, const char* const valueStr) noexcept override
     {
-        CarlaEngine::callback(action, pluginId, value1, value2, value3, valuef, valueStr);
+        CarlaEngine::callback(sendHost, sendOsc, action, pluginId, value1, value2, value3, valuef, valueStr);
 
         if (fClosingDown)
             return;
@@ -1022,7 +1023,7 @@ public:
             case kPluginBridgeNonRtClientQuit:
                 fClosingDown = true;
                 signalThreadShouldExit();
-                callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);
+                callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);
                 break;
             }
         }
@@ -1369,7 +1370,7 @@ protected:
             }
         }
 
-        callback(ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0, 0.0f, nullptr);
 
         if (! quitReceived)
         {

source/backend/engine/CarlaEngineGraph.cpp

@@ -220,8 +220,7 @@ bool ExternalGraph::connect(const uint groupA, const uint portA, const uint grou
     strBuf[STR_MAX] = '\0';
     std::snprintf(strBuf, STR_MAX, "%u:%u:%u:%u", groupA, portA, groupB, portB);
 
-    if (sendCallback)
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, connectionToId.id, 0, 0, 0, 0.0f, strBuf);
+    kEngine->callback(sendCallback, true, ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED, connectionToId.id, 0, 0, 0, 0.0f, strBuf);
 
     connections.list.append(connectionToId);
     return true;
@@ -300,7 +299,7 @@ bool ExternalGraph::disconnect(const uint connectionId) noexcept
             return false;
         }
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED, connectionToId.id, 0, 0, 0, 0.0f, nullptr);
+        kEngine->callback(true, true, ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED, connectionToId.id, 0, 0, 0, 0.0f, nullptr);
 
         connections.list.remove(it);
         return true;
@@ -318,7 +317,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
     // Main
     {
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                           kExternalGraphGroupCarla,
                           PATCHBAY_ICON_CARLA,
                           MAIN_CARLA_PLUGIN_ID,
@@ -327,28 +327,32 @@ void ExternalGraph::refresh(const char* const deviceName)
 
         if (isRack)
         {
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupCarla,
                               kExternalGraphCarlaPortAudioIn1,
                               PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT,
                               0, 0.0f,
                               "audio-in1");
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupCarla,
                               kExternalGraphCarlaPortAudioIn2,
                               PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT,
                               0, 0.0f,
                               "audio-in2");
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupCarla,
                               kExternalGraphCarlaPortAudioOut1,
                               PATCHBAY_PORT_TYPE_AUDIO,
                               0, 0.0f,
                               "audio-out1");
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupCarla,
                               kExternalGraphCarlaPortAudioOut2,
                               PATCHBAY_PORT_TYPE_AUDIO,
@@ -356,14 +360,16 @@ void ExternalGraph::refresh(const char* const deviceName)
                               "audio-out2");
         }
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                           kExternalGraphGroupCarla,
                           kExternalGraphCarlaPortMidiIn,
                           PATCHBAY_PORT_TYPE_MIDI|PATCHBAY_PORT_IS_INPUT,
                           0, 0.0f,
                           "midi-in");
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                           kExternalGraphGroupCarla,
                           kExternalGraphCarlaPortMidiOut,
                           PATCHBAY_PORT_TYPE_MIDI,
@@ -382,7 +388,8 @@ void ExternalGraph::refresh(const char* const deviceName)
         else
             std::strncpy(strBuf, "Capture", STR_MAX);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                           kExternalGraphGroupAudioIn,
                           PATCHBAY_ICON_HARDWARE,
                           -1,
@@ -399,7 +406,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
             portNameToId.setFullName(groupNameIn + portNameToId.name);
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupAudioIn,
                               ++h,
                               PATCHBAY_PORT_TYPE_AUDIO,
@@ -413,7 +421,8 @@ void ExternalGraph::refresh(const char* const deviceName)
         else
             std::strncpy(strBuf, "Playback", STR_MAX);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                           kExternalGraphGroupAudioOut,
                           PATCHBAY_ICON_HARDWARE,
                           -1,
@@ -430,7 +439,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
             portNameToId.setFullName(groupNameOut + portNameToId.name);
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupAudioOut,
                               ++h,
                               PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT,
@@ -441,7 +451,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
     // MIDI In
     {
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                           kExternalGraphGroupMidiIn,
                           PATCHBAY_ICON_HARDWARE,
                           -1,
@@ -458,7 +469,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
             portNameToId.setFullName(groupNamePlus + portNameToId.name);
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupMidiIn,
                               ++h,
                               PATCHBAY_PORT_TYPE_MIDI,
@@ -469,7 +481,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
     // MIDI Out
     {
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                           kExternalGraphGroupMidiOut,
                           PATCHBAY_ICON_HARDWARE,
                           -1,
@@ -486,7 +499,8 @@ void ExternalGraph::refresh(const char* const deviceName)
 
             portNameToId.setFullName(groupNamePlus + portNameToId.name);
 
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                               kExternalGraphGroupMidiOut,
                               ++h,
                               PATCHBAY_PORT_TYPE_MIDI|PATCHBAY_PORT_IS_INPUT,
@@ -788,7 +802,8 @@ void RackGraph::refresh(const char* const deviceName)
 
         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i", connectionToId.groupA, connectionToId.portA, connectionToId.groupB, connectionToId.portB);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           strBuf);
@@ -807,7 +822,8 @@ void RackGraph::refresh(const char* const deviceName)
 
         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i", connectionToId.groupA, connectionToId.portA, connectionToId.groupB, connectionToId.portB);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           strBuf);
@@ -826,7 +842,8 @@ void RackGraph::refresh(const char* const deviceName)
 
         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i", connectionToId.groupA, connectionToId.portA, connectionToId.groupB, connectionToId.portB);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           strBuf);
@@ -845,7 +862,8 @@ void RackGraph::refresh(const char* const deviceName)
 
         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i", connectionToId.groupA, connectionToId.portA, connectionToId.groupB, connectionToId.portB);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           strBuf);
@@ -1176,7 +1194,8 @@ void addNodeToPatchbay(CarlaEngine* const engine, const uint32_t groupId, const
     CARLA_SAFE_ASSERT_RETURN(engine != nullptr,);
     CARLA_SAFE_ASSERT_RETURN(proc != nullptr,);
 
-    engine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+    engine->callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                      groupId,
                      clientId >= 0 ? PATCHBAY_ICON_PLUGIN : PATCHBAY_ICON_HARDWARE,
                      clientId,
@@ -1185,7 +1204,8 @@ void addNodeToPatchbay(CarlaEngine* const engine, const uint32_t groupId, const
 
     for (int i=0, numInputs=proc->getTotalNumInputChannels(); i<numInputs; ++i)
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                          groupId,
                          static_cast<int>(kAudioInputPortOffset)+i,
                          PATCHBAY_PORT_TYPE_AUDIO|PATCHBAY_PORT_IS_INPUT,
@@ -1195,7 +1215,8 @@ void addNodeToPatchbay(CarlaEngine* const engine, const uint32_t groupId, const
 
     for (int i=0, numOutputs=proc->getTotalNumOutputChannels(); i<numOutputs; ++i)
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                          groupId,
                          static_cast<int>(kAudioOutputPortOffset)+i,
                          PATCHBAY_PORT_TYPE_AUDIO,
@@ -1205,7 +1226,8 @@ void addNodeToPatchbay(CarlaEngine* const engine, const uint32_t groupId, const
 
     if (proc->acceptsMidi())
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                          groupId,
                          static_cast<int>(kMidiInputPortOffset),
                          PATCHBAY_PORT_TYPE_MIDI|PATCHBAY_PORT_IS_INPUT,
@@ -1215,7 +1237,8 @@ void addNodeToPatchbay(CarlaEngine* const engine, const uint32_t groupId, const
 
     if (proc->producesMidi())
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                          groupId,
                          static_cast<int>(kMidiOutputPortOffset),
                          PATCHBAY_PORT_TYPE_MIDI,
@@ -1232,7 +1255,8 @@ void removeNodeFromPatchbay(CarlaEngine* const engine, const uint32_t groupId, c
 
     for (int i=0, numInputs=proc->getTotalNumInputChannels(); i<numInputs; ++i)
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
                          groupId,
                          static_cast<int>(kAudioInputPortOffset)+i,
                          0, 0, 0.0f, nullptr);
@@ -1240,7 +1264,8 @@ void removeNodeFromPatchbay(CarlaEngine* const engine, const uint32_t groupId, c
 
     for (int i=0, numOutputs=proc->getTotalNumOutputChannels(); i<numOutputs; ++i)
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
                          groupId,
                          static_cast<int>(kAudioOutputPortOffset)+i,
                          0, 0, 0.0f,
@@ -1249,7 +1274,8 @@ void removeNodeFromPatchbay(CarlaEngine* const engine, const uint32_t groupId, c
 
     if (proc->acceptsMidi())
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
                          groupId,
                          static_cast<int>(kMidiInputPortOffset),
                          0, 0, 0.0f, nullptr);
@@ -1257,13 +1283,15 @@ void removeNodeFromPatchbay(CarlaEngine* const engine, const uint32_t groupId, c
 
     if (proc->producesMidi())
     {
-        engine->callback(ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
+        engine->callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
                          groupId,
                          static_cast<int>(kMidiOutputPortOffset),
                          0, 0, 0.0f, nullptr);
     }
 
-    engine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED,
+    engine->callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED,
                      groupId,
                      0, 0, 0, 0.0f, nullptr);
 }
@@ -1621,7 +1649,8 @@ void PatchbayGraph::renamePlugin(CarlaPlugin* const plugin, const char* const ne
     CARLA_SAFE_ASSERT_RETURN(node != nullptr,);
 
     if (! usingExternal)
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED,
                           node->nodeId,
                           0, 0, 0, 0.0f,
                           newName);
@@ -1710,7 +1739,8 @@ bool PatchbayGraph::connect(const bool external, const uint groupA, const uint p
     std::snprintf(strBuf, STR_MAX, "%u:%u:%u:%u", groupA, portA, groupB, portB);
 
     if (sendCallback)
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           strBuf);
@@ -1746,7 +1776,8 @@ bool PatchbayGraph::disconnect(const uint connectionId)
                                      connectionToId.groupB, static_cast<int>(adjustedPortB)))
             return false;
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           nullptr);
@@ -1787,7 +1818,8 @@ void PatchbayGraph::disconnectInternalGroup(const uint groupId) noexcept
         */
 
         if (! usingExternal)
-            kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
                               connectionToId.id,
                               0, 0, 0, 0.0f,
                               nullptr);
@@ -1854,7 +1886,8 @@ void PatchbayGraph::refresh(const char* const deviceName)
 
         std::snprintf(strBuf, STR_MAX, "%i:%i:%i:%i", groupA, portA, groupB, portB);
 
-        kEngine->callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                           connectionToId.id,
                           0, 0, 0, 0.0f,
                           strBuf);

source/backend/engine/CarlaEngineJack.cpp

@@ -1032,7 +1032,8 @@ public:
             }
 
             startThread();
-            callback(ENGINE_CALLBACK_ENGINE_STARTED, 0,
+            callback(true, true,
+                     ENGINE_CALLBACK_ENGINE_STARTED, 0,
                      opts.processMode,
                      opts.transportMode,
                      static_cast<int>(pData->bufferSize),
@@ -1193,7 +1194,8 @@ public:
             else
             {
                 // jack transport cannot be disabled in multi-client
-                callback(ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED, 0,
+                callback(true, true,
+                         ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED, 0,
                          ENGINE_TRANSPORT_MODE_JACK,
                          0, 0, 0.0f,
                          pData->options.transportExtra);
@@ -1360,7 +1362,8 @@ public:
                             if (connectionToId.groupA != groupId && connectionToId.groupB != groupId)
                                 continue;
 
-                            callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
+                            callback(true, true,
+                                     ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
                                      connectionToId.id,
                                      0, 0, 0, 0.0f, nullptr);
                             fUsedConnections.list.remove(it2);
@@ -1374,7 +1377,8 @@ public:
                         if (portNameToId.group != groupId)
                             continue;
 
-                        callback(ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
+                        callback(true, true,
+                                 ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
                                  portNameToId.group,
                                  static_cast<int>(portNameToId.port),
                                  0, 0, 0.0f, nullptr);
@@ -1971,7 +1975,7 @@ protected:
         GroupNameToId groupNameToId;
         groupNameToId.setData(groupId, name);
 
-        callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED, groupNameToId.group, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED, groupNameToId.group, 0, 0, 0, 0.0f, nullptr);
         fUsedGroups.list.removeOne(groupNameToId);
     }
 
@@ -2008,7 +2012,8 @@ protected:
                 GroupNameToId groupNameToId;
                 groupNameToId.setData(groupId, groupName);
 
-                callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+                callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                          groupNameToId.group,
                          (jackPortFlags & JackPortIsPhysical) ? PATCHBAY_ICON_HARDWARE : PATCHBAY_ICON_APPLICATION,
                          -1,
@@ -2029,7 +2034,8 @@ protected:
                      See the comment on CarlaEngineJack::renamePlugin() for more information. */
             if (portNameToId.group <= 0 || portNameToId.port <= 0) return;
 
-            callback(ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
+            callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED,
                      portNameToId.group,
                      static_cast<int>(portNameToId.port),
                      0, 0, 0.0f, nullptr);
@@ -2071,7 +2077,8 @@ protected:
             ConnectionToId connectionToId;
             connectionToId.setData(++fUsedConnections.lastId, portNameToIdA.group, portNameToIdA.port, portNameToIdB.group, portNameToIdB.port);
 
-            callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+            callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                      connectionToId.id,
                      0, 0, 0, 0.0f,
                      strBuf);
@@ -2101,7 +2108,8 @@ protected:
             }
 
             if (found) {
-                callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
+                callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED,
                          connectionToId.id,
                          0, 0, 0, 0.0f, nullptr);
             }
@@ -2143,7 +2151,8 @@ protected:
                 CARLA_SAFE_ASSERT_CONTINUE(portNameToId.group == groupId);
 
                 portNameToId.rename(shortPortName, newFullName);
-                callback(ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED,
+                callback(true, true,
+                         ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED,
                          portNameToId.group,
                          static_cast<int>(portNameToId.port),
                          0, 0, 0.0f,
@@ -2180,7 +2189,7 @@ protected:
         carla_zeroPointers(fRackPorts, kRackPortCount);
 #endif
 
-        callback(ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);
+        callback(true, true, ENGINE_CALLBACK_QUIT, 0, 0, 0, 0, 0.0f, nullptr);
     }
 
     // -------------------------------------------------------------------
@@ -2197,7 +2206,7 @@ protected:
         //if (pData->nextAction.pluginId == plugin->getId())
         //    pData->nextAction.clearAndReset();
 
-        callback(ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, plugin->getId(), 0, 0, 0, 0.0f, "Killed by JACK");
+        callback(true, true, ENGINE_CALLBACK_PLUGIN_UNAVAILABLE, plugin->getId(), 0, 0, 0, 0.0f, "Killed by JACK");
     }
 
     // -------------------------------------------------------------------
@@ -2301,7 +2310,8 @@ private:
             GroupNameToId groupNameToId;
             groupNameToId.setData(++fUsedGroups.lastId, ourName);
 
-            callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+            callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                      groupNameToId.group,
                      PATCHBAY_ICON_CARLA,
                      -1,
@@ -2352,7 +2362,8 @@ private:
                     GroupNameToId groupNameToId;
                     groupNameToId.setData(groupId, groupName);
 
-                    callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
+                    callback(true, true,
+                             ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED,
                              groupNameToId.group,
                              icon,
                              pluginId,
@@ -2403,7 +2414,8 @@ private:
                         ConnectionToId connectionToId;
                         connectionToId.setData(++fUsedConnections.lastId, thisPort.group, thisPort.port, targetPort.group, targetPort.port);
 
-                        callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+                        callback(true, true,
+                                 ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                                  connectionToId.id,
                                  0, 0, 0, 0.0f,
                                  strBuf);
@@ -2456,7 +2468,8 @@ private:
         PortNameToId portNameToId;
         portNameToId.setData(groupId, ++fUsedPorts.lastId, shortPortName, fullPortName);
 
-        callback(ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
+        callback(true, true,
+                 ENGINE_CALLBACK_PATCHBAY_PORT_ADDED,
                  portNameToId.group,
                  static_cast<int>(portNameToId.port),
                  static_cast<int>(canvasPortFlags),
@@ -2628,7 +2641,8 @@ private:
                 PatchbayIcon icon = PATCHBAY_ICON_PLUGIN;
 
                 if (findPluginIdAndIcon(groupName, pluginId, icon)) {
-                    callback(ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED,
+                    callback(true, true,
+                             ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED,
                              groupId,
                              icon,
                              pluginId,

source/backend/engine/CarlaEngineJuce.cpp

@@ -227,7 +227,8 @@ public:
         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)
             refreshExternalGraphPorts<PatchbayGraph>(pData->graph.getPatchbayGraph(), false);
 
-        callback(ENGINE_CALLBACK_ENGINE_STARTED,
+        callback(true, true,
+                 ENGINE_CALLBACK_ENGINE_STARTED,
                  0,
                  pData->options.processMode,
                  pData->options.transportMode,
@@ -438,7 +439,8 @@ public:
             std::snprintf(strBuf, STR_MAX-1, "%i:%i:%i:%i", connectionToId.groupA, connectionToId.portA, connectionToId.groupB, connectionToId.portB);
             strBuf[STR_MAX-1] = '\0';
 
-            callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+            callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                      connectionToId.id,
                      0, 0, 0, 0.0f,
                      strBuf);
@@ -462,7 +464,8 @@ public:
             std::snprintf(strBuf, STR_MAX-1, "%i:%i:%i:%i", connectionToId.groupA, connectionToId.portA, connectionToId.groupB, connectionToId.portB);
             strBuf[STR_MAX-1] = '\0';
 
-            callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+            callback(true, true,
+                     ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
                      connectionToId.id,
                      0, 0, 0, 0.0f,
                      strBuf);
@@ -622,7 +625,7 @@ protected:
 
     void audioDeviceError(const juce::String& errorMessage) override
     {
-        callback(ENGINE_CALLBACK_ERROR, 0, 0, 0, 0, 0.0f, errorMessage.toRawUTF8());
+        callback(true, true, ENGINE_CALLBACK_ERROR, 0, 0, 0, 0, 0.0f, errorMessage.toRawUTF8());
     }
 
     // -------------------------------------------------------------------

source/backend/engine/CarlaEngineNative.cpp

@@ -650,7 +650,8 @@ private:
     void _updateParamValues(CarlaPlugin* const plugin, const uint32_t pluginId) const noexcept
     {
         for (uint32_t i=0, count=plugin->getParameterCount(); i<count; ++i) {
-            fEngine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+            fEngine->callback(true, true,
+                              ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
                               pluginId,
                               static_cast<int>(i),
                               0, 0,
@@ -819,11 +820,12 @@ protected:
         return "Plugin";
     }
 
-    void callback(const EngineCallbackOpcode action, const uint pluginId,
+    void callback(const bool sendHost, const bool sendOsc,
+                  const EngineCallbackOpcode action, const uint pluginId,
                   const int value1, const int value2, const int value3,
                   const float valuef, const char* const valueStr) noexcept override
     {
-        CarlaEngine::callback(action, pluginId, value1, value2, value3, valuef, valueStr);
+        CarlaEngine::callback(sendHost, sendOsc, action, pluginId, value1, value2, value3, valuef, valueStr);
 
         if (action == ENGINE_CALLBACK_IDLE && ! pData->aboutToClose) {
             pHost->dispatcher(pHost->handle,
@@ -1968,7 +1970,7 @@ protected:
     {
         // remove all plugins from UI side
         for (uint i=0, count=pData->curPluginCount; i < count; ++i)
-            CarlaEngine::callback(ENGINE_CALLBACK_PLUGIN_REMOVED, count-i-1, 0, 0, 0, 0.0f, nullptr);
+            CarlaEngine::callback(true, true, ENGINE_CALLBACK_PLUGIN_REMOVED, count-i-1, 0, 0, 0, 0.0f, nullptr);
 
         // remove all plugins from backend, no lock
         fIsRunning = false;

source/backend/engine/CarlaEngineOsc.cpp

@@ -398,10 +398,23 @@ int CarlaEngineOsc::handleMsgRegister(const bool isTCP, const int argc, const lo
         for (uint i=0, count=fEngine->getCurrentPluginCount(); i < count; ++i)
         {
             CarlaPlugin* const plugin(fEngine->getPluginUnchecked(i));
+            CARLA_SAFE_ASSERT_CONTINUE(plugin != nullptr);
 
-            if (plugin != nullptr && plugin->isEnabled())
-                plugin->registerToOscClient();
+            fEngine->callback(false, true, ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0, 0.0f, plugin->getName());
         }
+
+        const EngineOptions& opts(fEngine->getOptions());
+
+        fEngine->callback(false, true,
+                          ENGINE_CALLBACK_ENGINE_STARTED, 0,
+                          opts.processMode,
+                          opts.transportMode,
+                          static_cast<int>(fEngine->getBufferSize()),
+                          static_cast<float>(fEngine->getSampleRate()),
+                          fEngine->getCurrentDriverName());
+
+        // TODO
+        // fEngine->patchbayRefresh();
     }
 
     lo_address_free(addr);

source/backend/engine/CarlaEngineOscSend.cpp

@@ -28,6 +28,26 @@ CARLA_BACKEND_START_NAMESPACE
 // -----------------------------------------------------------------------
 
 #ifndef BUILD_BRIDGE
+void CarlaEngine::oscSend_control_callback(const EngineCallbackOpcode action, const uint pluginId,
+                                           const int value1, const int value2, const int value3,
+                                           const float valuef, const char* const valueStr) const noexcept
+{
+    CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
+    CARLA_SAFE_ASSERT_RETURN(pData->oscData->path != nullptr && pData->oscData->path[0] != '\0',);
+    CARLA_SAFE_ASSERT_RETURN(pData->oscData->target != nullptr,);
+    carla_debug("CarlaEngine::oscSend_control_callback(%i:%s, %i, %i, %i, %i, %f, \"%s\")",
+                action, EngineCallbackOpcode2Str(action), pluginId, value1, value2, value3, valuef, valueStr);
+
+    static const char* const kFakeNullString = "(null)";
+
+    char targetPath[std::strlen(pData->oscData->path)+10];
+    std::strcpy(targetPath, pData->oscData->path);
+    std::strcat(targetPath, "/callback");
+    try_lo_send(pData->oscData->target, targetPath, "iiiiifs",
+                action, pluginId, value1, value2, value3, static_cast<double>(valuef),
+                valueStr != nullptr ? valueStr : kFakeNullString);
+}
+
 void CarlaEngine::oscSend_control_add_plugin_start(const uint pluginId, const char* const pluginName) const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
@@ -43,6 +63,7 @@ void CarlaEngine::oscSend_control_add_plugin_start(const uint pluginId, const ch
     try_lo_send(pData->oscData->target, targetPath, "is", static_cast<int32_t>(pluginId), pluginName);
 }
 
+#if 0
 void CarlaEngine::oscSend_control_add_plugin_end(const uint pluginId) const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
@@ -70,6 +91,7 @@ void CarlaEngine::oscSend_control_remove_plugin(const uint pluginId) const noexc
     std::strcat(targetPath, "/remove_plugin");
     try_lo_send(pData->oscData->target, targetPath, "i", static_cast<int32_t>(pluginId));
 }
+#endif
 
 void CarlaEngine::oscSend_control_set_plugin_info1(const uint pluginId, const PluginType type, const PluginCategory category, const uint hints, const int64_t uniqueId) const noexcept
 {
@@ -239,6 +261,7 @@ void CarlaEngine::oscSend_control_set_parameter_ranges2(const uint pluginId, con
                 static_cast<double>(stepLarge));
 }
 
+#if 0
 void CarlaEngine::oscSend_control_set_parameter_midi_cc(const uint pluginId, const uint32_t index, const int16_t cc) const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
@@ -270,8 +293,9 @@ void CarlaEngine::oscSend_control_set_parameter_midi_channel(const uint pluginId
     std::strcat(targetPath, "/set_parameter_midi_channel");
     try_lo_send(pData->oscData->target, targetPath, "iii", static_cast<int32_t>(pluginId), static_cast<int32_t>(index), static_cast<int32_t>(channel));
 }
+#endif
 
-void CarlaEngine::oscSend_control_set_parameter_value(const uint pluginId, const int32_t index, const float value) const noexcept
+void CarlaEngine::oscSend_control_set_output_parameter_value(const uint pluginId, const int32_t index, const float value) const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
     CARLA_SAFE_ASSERT_RETURN(pData->oscData->path != nullptr && pData->oscData->path[0] != '\0',);
@@ -279,18 +303,19 @@ void CarlaEngine::oscSend_control_set_parameter_value(const uint pluginId, const
     CARLA_SAFE_ASSERT_RETURN(pluginId <= pData->curPluginCount,);
     CARLA_SAFE_ASSERT_RETURN(index < 50,);
     CARLA_SAFE_ASSERT_RETURN(index != PARAMETER_NULL,);
-    carla_debug("CarlaEngine::oscSend_control_set_parameter_value(%i, %i:%s, %f)", pluginId, index,
+    carla_debug("CarlaEngine::oscSend_control_set_output_parameter_value(%i, %i:%s, %f)", pluginId, index,
                 (index < 0) ? InternalParameterIndex2Str(static_cast<InternalParameterIndex>(index)) : "(none)", value);
 
     char targetPath[std::strlen(pData->oscData->path)+21];
     std::strcpy(targetPath, pData->oscData->path);
-    std::strcat(targetPath, "/set_parameter_value");
+    std::strcat(targetPath, "/set_output_parameter_value");
     try_lo_send(pData->oscData->target, targetPath, "iif",
                 static_cast<int32_t>(pluginId),
                 index,
                 static_cast<double>(value));
 }
 
+#if 0
 void CarlaEngine::oscSend_control_set_default_value(const uint pluginId, const uint32_t index, const float value) const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
@@ -338,6 +363,7 @@ void CarlaEngine::oscSend_control_set_current_midi_program(const uint pluginId,
     std::strcat(targetPath, "/set_current_midi_program");
     try_lo_send(pData->oscData->target, targetPath, "ii", static_cast<int32_t>(pluginId), index);
 }
+#endif
 
 void CarlaEngine::oscSend_control_set_program_name(const uint pluginId, const uint32_t index, const char* const name) const noexcept
 {
@@ -371,6 +397,7 @@ void CarlaEngine::oscSend_control_set_midi_program_data(const uint pluginId, con
     try_lo_send(pData->oscData->target, targetPath, "iiiis", static_cast<int32_t>(pluginId), static_cast<int32_t>(index), static_cast<int32_t>(bank), static_cast<int32_t>(program), name);
 }
 
+#if 0
 void CarlaEngine::oscSend_control_note_on(const uint pluginId, const uint8_t channel, const uint8_t note, const uint8_t velo) const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
@@ -403,6 +430,7 @@ void CarlaEngine::oscSend_control_note_off(const uint pluginId, const uint8_t ch
     std::strcat(targetPath, "/note_off");
     try_lo_send(pData->oscData->target, targetPath, "iii", static_cast<int32_t>(pluginId), static_cast<int32_t>(channel), static_cast<int32_t>(note));
 }
+#endif
 
 void CarlaEngine::oscSend_control_set_peaks(const uint pluginId) const noexcept
 {
@@ -424,6 +452,7 @@ void CarlaEngine::oscSend_control_set_peaks(const uint pluginId) const noexcept
                 static_cast<double>(epData.peaks[3]));
 }
 
+#if 0
 void CarlaEngine::oscSend_control_exit() const noexcept
 {
     CARLA_SAFE_ASSERT_RETURN(pData->oscData != nullptr,);
@@ -436,6 +465,7 @@ void CarlaEngine::oscSend_control_exit() const noexcept
     std::strcat(targetPath, "/exit");
     try_lo_send(pData->oscData->target, targetPath, "");
 }
+#endif
 #endif // BUILD_BRIDGE
 
 // -----------------------------------------------------------------------

source/backend/engine/CarlaEngineRtAudio.cpp

@@ -349,7 +349,8 @@ public:
         if (pData->options.processMode == ENGINE_PROCESS_MODE_PATCHBAY)
             refreshExternalGraphPorts<PatchbayGraph>(pData->graph.getPatchbayGraph(), false);
 
-        callback(ENGINE_CALLBACK_ENGINE_STARTED,
+        callback(true, true,
+                 ENGINE_CALLBACK_ENGINE_STARTED,
                  0,
                  pData->options.processMode,
                  pData->options.transportMode,
@@ -555,12 +556,11 @@ public:
 
             extGraph.connections.list.append(connectionToId);
 
-            if (sendCallback) {
-                callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
-                         connectionToId.id,
-                         0, 0, 0, 0.0f,
-                         strBuf);
-            }
+            callback(sendCallback, true,
+                     ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+                     connectionToId.id,
+                     0, 0, 0, 0.0f,
+                     strBuf);
         }
 
         fMidiOutMutex.lock();
@@ -582,12 +582,11 @@ public:
 
             extGraph.connections.list.append(connectionToId);
 
-            if (sendCallback) {
-                callback(ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
-                         connectionToId.id,
-                         0, 0, 0, 0.0f,
-                         strBuf);
-            }
+            callback(sendCallback, true,
+                     ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED,
+                     connectionToId.id,
+                     0, 0, 0, 0.0f,
+                     strBuf);
         }
 
         fMidiOutMutex.unlock();

source/backend/engine/CarlaEngineThread.cpp

@@ -99,7 +99,7 @@ void CarlaEngineThread::run() noexcept
 #if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
                     // Update OSC engine client
                     if (oscRegisted)
-                        kEngine->oscSend_control_set_parameter_value(i, static_cast<int32_t>(j), value);
+                        kEngine->oscSend_control_set_output_parameter_value(i, static_cast<int32_t>(j), value);
 #endif
                     // Update UI
                     if (updateUI)

source/backend/plugin/CarlaPlugin.cpp

@@ -890,7 +890,7 @@ void CarlaPlugin::loadStateSave(const CarlaStateSave& stateSave)
     setActive(stateSave.active, true, true);
 
     if (! pData->engine->isLoadingProject())
-        pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, 0, 0, 0, 0.0f, nullptr);
+        pData->engine->callback(true, true, ENGINE_CALLBACK_UPDATE, pData->id, 0, 0, 0, 0.0f, nullptr);
 #endif
 }
 
@@ -1293,7 +1293,8 @@ void CarlaPlugin::setOption(const uint option, const bool yesNo, const bool send
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
     if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_OPTION_CHANGED,
+        pData->engine->callback(true, true,
+                                ENGINE_CALLBACK_OPTION_CHANGED,
                                 pData->id,
                                 static_cast<int>(option),
                                 yesNo ? 1 : 0,
@@ -1342,25 +1343,17 @@ void CarlaPlugin::setActive(const bool active, const bool sendOsc, const bool se
 
     pData->active = active;
 
+#ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
     const float value = active ? 1.0f : 0.0f;
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_ACTIVE, value);
-#endif
-
-#ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_ACTIVE,
-                                0, 0,
-                                value,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_ACTIVE,
+                            0, 0,
+                            value,
+                            nullptr);
 #endif
-
-    // maybe unused
-    return; (void)value;
 }
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
@@ -1380,18 +1373,13 @@ void CarlaPlugin::setDryWet(const float value, const bool sendOsc, const bool se
 
     pData->postProc.dryWet = fixedValue;
 
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_DRYWET, fixedValue);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_DRYWET,
-                                0, 0,
-                                fixedValue,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_DRYWET,
+                            0, 0,
+                            fixedValue,
+                            nullptr);
 }
 
 void CarlaPlugin::setVolume(const float value, const bool sendOsc, const bool sendCallback) noexcept
@@ -1410,18 +1398,13 @@ void CarlaPlugin::setVolume(const float value, const bool sendOsc, const bool se
 
     pData->postProc.volume = fixedValue;
 
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_VOLUME, fixedValue);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_VOLUME,
-                                0, 0,
-                                fixedValue,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_VOLUME,
+                            0, 0,
+                            fixedValue,
+                            nullptr);
 }
 
 void CarlaPlugin::setBalanceLeft(const float value, const bool sendOsc, const bool sendCallback) noexcept
@@ -1440,18 +1423,13 @@ void CarlaPlugin::setBalanceLeft(const float value, const bool sendOsc, const bo
 
     pData->postProc.balanceLeft = fixedValue;
 
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_BALANCE_LEFT, fixedValue);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_BALANCE_LEFT,
-                                0, 0,
-                                fixedValue,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_BALANCE_LEFT,
+                            0, 0,
+                            fixedValue,
+                            nullptr);
 }
 
 void CarlaPlugin::setBalanceRight(const float value, const bool sendOsc, const bool sendCallback) noexcept
@@ -1470,18 +1448,13 @@ void CarlaPlugin::setBalanceRight(const float value, const bool sendOsc, const b
 
     pData->postProc.balanceRight = fixedValue;
 
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_BALANCE_RIGHT, fixedValue);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_BALANCE_RIGHT,
-                                0, 0,
-                                fixedValue,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_BALANCE_RIGHT,
+                            0, 0,
+                            fixedValue,
+                            nullptr);
 }
 
 void CarlaPlugin::setPanning(const float value, const bool sendOsc, const bool sendCallback) noexcept
@@ -1500,18 +1473,13 @@ void CarlaPlugin::setPanning(const float value, const bool sendOsc, const bool s
 
     pData->postProc.panning = fixedValue;
 
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_PANNING, fixedValue);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_PANNING,
-                                0, 0,
-                                fixedValue,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_PANNING,
+                            0, 0,
+                            fixedValue,
+                            nullptr);
 }
 
 void CarlaPlugin::setDryWetRT(const float value) noexcept
@@ -1593,24 +1561,16 @@ void CarlaPlugin::setCtrlChannel(const int8_t channel, const bool sendOsc, const
 
     pData->ctrlChannel = channel;
 
+#ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
     const float channelf = static_cast<float>(channel);
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_CTRL_CHANNEL, channelf);
-#endif
-
-#ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                PARAMETER_CTRL_CHANNEL,
-                                0, 0,
-                                channelf, nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            PARAMETER_CTRL_CHANNEL,
+                            0, 0,
+                            channelf, nullptr);
 #endif
-
-    // maybe unused
-    return; (void)channelf;
 }
 
 // -------------------------------------------------------------------
@@ -1631,18 +1591,13 @@ void CarlaPlugin::setParameterValue(const uint32_t parameterId, const float valu
     if (sendGui && (pData->hints & PLUGIN_HAS_CUSTOM_UI) != 0)
         uiParameterChange(parameterId, value);
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_value(pData->id, static_cast<int32_t>(parameterId), value);
-#endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                                pData->id,
-                                static_cast<int>(parameterId),
-                                0, 0,
-                                value,
-                                nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                            pData->id,
+                            static_cast<int>(parameterId),
+                            0, 0,
+                            value,
+                            nullptr);
 }
 
 void CarlaPlugin::setParameterValueRT(const uint32_t parameterId, const float value) noexcept
@@ -1699,17 +1654,12 @@ void CarlaPlugin::setParameterMidiChannel(const uint32_t parameterId, const uint
     pData->param.data[parameterId].midiChannel = channel;
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_midi_channel(pData->id, parameterId, channel);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED,
-                                pData->id,
-                                static_cast<int>(parameterId),
-                                channel,
-                                0, 0.0f, nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED,
+                            pData->id,
+                            static_cast<int>(parameterId),
+                            channel,
+                            0, 0.0f, nullptr);
 #endif
 }
 
@@ -1726,17 +1676,12 @@ void CarlaPlugin::setParameterMidiCC(const uint32_t parameterId, const int16_t c
     pData->param.data[parameterId].midiCC = cc;
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
-# if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-        pData->engine->oscSend_control_set_parameter_midi_cc(pData->id, parameterId, cc);
-# endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED,
-                                pData->id,
-                                static_cast<int>(parameterId),
-                                cc,
-                                0, 0.0f, nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED,
+                            pData->id,
+                            static_cast<int>(parameterId),
+                            cc,
+                            0, 0.0f, nullptr);
 #endif
 }
 
@@ -1794,20 +1739,11 @@ void CarlaPlugin::setProgram(const int32_t index, const bool sendGui, const bool
 
     pData->prog.current = index;
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    const bool reallySendOsc(sendOsc && pData->engine->isOscControlRegistered());
-
-    if (reallySendOsc && index < 50)
-        pData->engine->oscSend_control_set_current_program(pData->id, index);
-#else
-    const bool reallySendOsc(false);
-#endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_PROGRAM_CHANGED,
-                                pData->id,
-                                index,
-                                0, 0, 0.0f, nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_PROGRAM_CHANGED,
+                            pData->id,
+                            index,
+                            0, 0, 0.0f, nullptr);
 
     // Change default parameter values
     if (index >= 0)
@@ -1822,13 +1758,10 @@ void CarlaPlugin::setProgram(const int32_t index, const bool sendGui, const bool
             break;
 
         default:
-            pData->updateParameterValues(this, reallySendOsc, sendCallback, true);
+            pData->updateParameterValues(this, sendOsc, sendCallback, true);
             break;
         }
     }
-
-    // may be unused
-    return; (void)sendOsc;
 }
 
 void CarlaPlugin::setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback, const bool) noexcept
@@ -1837,20 +1770,11 @@ void CarlaPlugin::setMidiProgram(const int32_t index, const bool sendGui, const
 
     pData->midiprog.current = index;
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    const bool reallySendOsc(sendOsc && pData->engine->isOscControlRegistered());
-
-    if (reallySendOsc && index < 50)
-        pData->engine->oscSend_control_set_current_midi_program(pData->id, index);
-#else
-    const bool reallySendOsc(false);
-#endif
-
-    if (sendCallback)
-        pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
-                                pData->id,
-                                index,
-                                0, 0, 0.0f, nullptr);
+    pData->engine->callback(sendCallback, sendOsc,
+                            ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
+                            pData->id,
+                            index,
+                            0, 0, 0.0f, nullptr);
 
     // Change default parameter values
     if (index >= 0)
@@ -1865,13 +1789,10 @@ void CarlaPlugin::setMidiProgram(const int32_t index, const bool sendGui, const
             break;
 
         default:
-            pData->updateParameterValues(this, reallySendOsc, sendCallback, true);
+            pData->updateParameterValues(this, sendOsc, sendCallback, true);
             break;
         }
     }
-
-    // may be unused
-    return; (void)sendOsc;
 }
 
 void CarlaPlugin::setMidiProgramById(const uint32_t bank, const uint32_t program, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept
@@ -1969,9 +1890,6 @@ void CarlaPlugin::idle()
 
     const bool hasUI(pData->hints & PLUGIN_HAS_CUSTOM_UI);
     const bool needsUiMainThread(pData->hints & PLUGIN_NEEDS_UI_MAIN_THREAD);
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    const bool sendOsc(pData->engine->isOscControlRegistered());
-#endif
     const uint32_t latency(getLatencyInFrames());
 
     if (pData->latency.frames != latency)
@@ -2001,7 +1919,8 @@ void CarlaPlugin::idle()
         } break;
 
         case kPluginPostRtEventDebug: {
-            pData->engine->callback(ENGINE_CALLBACK_DEBUG, pData->id,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_DEBUG, pData->id,
                                     event.value1, event.value2, event.value3, event.valuef, nullptr);
         } break;
 
@@ -2017,13 +1936,9 @@ void CarlaPlugin::idle()
 
             if (event.value2 != 0)
             {
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-                // Update OSC control client
-                if (sendOsc)
-                    pData->engine->oscSend_control_set_parameter_value(pData->id, event.value1, event.valuef);
-#endif
                 // Update Host
-                pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
                                         pData->id,
                                         event.value1,
                                         0, 0,
@@ -2048,20 +1963,15 @@ void CarlaPlugin::idle()
                 const float paramDefault(pData->param.ranges[j].def);
                 const float paramValue(getParameterValue(j));
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-                if (sendOsc && j < 50)
-                {
-                    pData->engine->oscSend_control_set_parameter_value(pData->id, static_cast<int32_t>(j), paramValue);
-                    pData->engine->oscSend_control_set_default_value(pData->id, j, paramDefault);
-                }
-#endif
-                pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
                                         pData->id,
                                         static_cast<int>(j),
                                         0, 0,
                                         paramValue,
                                         nullptr);
-                pData->engine->callback(ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED,
                                         pData->id,
                                         static_cast<int>(j),
                                         0, 0,
@@ -2069,13 +1979,9 @@ void CarlaPlugin::idle()
                                         nullptr);
             }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-            // Update OSC control client
-            if (sendOsc)
-                pData->engine->oscSend_control_set_current_program(pData->id, event.value1);
-#endif
             // Update Host
-            pData->engine->callback(ENGINE_CALLBACK_PROGRAM_CHANGED,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_PROGRAM_CHANGED,
                                     pData->id,
                                     event.value1,
                                     0, 0, 0.0f, nullptr);
@@ -2098,20 +2004,15 @@ void CarlaPlugin::idle()
                 const float paramDefault(pData->param.ranges[j].def);
                 const float paramValue(getParameterValue(j));
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-                if (sendOsc && j < 50)
-                {
-                    pData->engine->oscSend_control_set_parameter_value(pData->id, static_cast<int32_t>(j), paramValue);
-                    pData->engine->oscSend_control_set_default_value(pData->id, j, paramDefault);
-                }
-#endif
-                pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
                                         pData->id,
                                         static_cast<int>(j),
                                         0, 0,
                                         paramValue,
                                         nullptr);
-                pData->engine->callback(ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED,
                                         pData->id,
                                         static_cast<int>(j),
                                         0, 0,
@@ -2119,13 +2020,9 @@ void CarlaPlugin::idle()
                                         nullptr);
             }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-            // Update OSC control client
-            if (sendOsc)
-                pData->engine->oscSend_control_set_current_midi_program(pData->id, event.value1);
-#endif
             // Update Host
-            pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
                                     pData->id,
                                     event.value1,
                                     0, 0, 0.0f, nullptr);
@@ -2150,13 +2047,9 @@ void CarlaPlugin::idle()
                     uiNoteOn(channel, note, velocity);
             }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-            // Update OSC control client
-            if (sendOsc)
-                pData->engine->oscSend_control_note_on(pData->id, channel, note, velocity);
-#endif
             // Update Host
-            pData->engine->callback(ENGINE_CALLBACK_NOTE_ON,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_NOTE_ON,
                                     pData->id,
                                     event.value1,
                                     event.value2,
@@ -2180,13 +2073,9 @@ void CarlaPlugin::idle()
                     uiNoteOff(channel, note);
             }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-            // Update OSC control client
-            if (sendOsc)
-                pData->engine->oscSend_control_note_off(pData->id, channel, note);
-#endif
             // Update Host
-            pData->engine->callback(ENGINE_CALLBACK_NOTE_OFF,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_NOTE_OFF,
                                     pData->id,
                                     event.value1,
                                     event.value2,
@@ -2312,13 +2201,13 @@ void CarlaPlugin::registerToOscClient() noexcept
             pData->engine->oscSend_control_set_parameter_data(pData->id, i, paramData.type, paramData.hints, bufName, bufUnit);
             pData->engine->oscSend_control_set_parameter_ranges1(pData->id, i, paramRanges.def, paramRanges.min, paramRanges.max);
             pData->engine->oscSend_control_set_parameter_ranges2(pData->id, i, paramRanges.step, paramRanges.stepSmall, paramRanges.stepLarge);
-            pData->engine->oscSend_control_set_parameter_value(pData->id, static_cast<int32_t>(i), getParameterValue(i));
-
-            if (paramData.midiCC >= 0)
-                pData->engine->oscSend_control_set_parameter_midi_cc(pData->id, i, paramData.midiCC);
-
-            if (paramData.midiChannel != 0)
-                pData->engine->oscSend_control_set_parameter_midi_channel(pData->id, i, paramData.midiChannel);
+//             pData->engine->oscSend_control_set_parameter_value(pData->id, static_cast<int32_t>(i), getParameterValue(i));
+//
+//             if (paramData.midiCC >= 0)
+//                 pData->engine->oscSend_control_set_parameter_midi_cc(pData->id, i, paramData.midiCC);
+//
+//             if (paramData.midiChannel != 0)
+//                 pData->engine->oscSend_control_set_parameter_midi_channel(pData->id, i, paramData.midiChannel);
         }
     }
 
@@ -2330,7 +2219,7 @@ void CarlaPlugin::registerToOscClient() noexcept
         for (uint32_t i=0; i < count; ++i)
             pData->engine->oscSend_control_set_program_name(pData->id, i, pData->prog.names[i]);
 
-        pData->engine->oscSend_control_set_current_program(pData->id, pData->prog.current);
+//         pData->engine->oscSend_control_set_current_program(pData->id, pData->prog.current);
     }
 
     // MIDI Programs
@@ -2345,20 +2234,18 @@ void CarlaPlugin::registerToOscClient() noexcept
             pData->engine->oscSend_control_set_midi_program_data(pData->id, i, mpData.bank, mpData.program, mpData.name);
         }
 
-        pData->engine->oscSend_control_set_current_midi_program(pData->id, pData->midiprog.current);
+//         pData->engine->oscSend_control_set_current_midi_program(pData->id, pData->midiprog.current);
     }
 
-    pData->engine->oscSend_control_add_plugin_end(pData->id);
-
     // Internal Parameters
     {
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_DRYWET, pData->postProc.dryWet);
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_VOLUME, pData->postProc.volume);
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_BALANCE_LEFT, pData->postProc.balanceLeft);
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_BALANCE_RIGHT, pData->postProc.balanceRight);
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_PANNING, pData->postProc.panning);
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_CTRL_CHANNEL, pData->ctrlChannel);
-        pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_ACTIVE, pData->active ? 1.0f : 0.0f);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_DRYWET, pData->postProc.dryWet);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_VOLUME, pData->postProc.volume);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_BALANCE_LEFT, pData->postProc.balanceLeft);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_BALANCE_RIGHT, pData->postProc.balanceRight);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_PANNING, pData->postProc.panning);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_CTRL_CHANNEL, pData->ctrlChannel);
+//         pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_ACTIVE, pData->active ? 1.0f : 0.0f);
     }
 }
 #endif
@@ -2397,26 +2284,13 @@ void CarlaPlugin::sendMidiSingleNote(const uint8_t channel, const uint8_t note,
             uiNoteOff(channel, note);
     }
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-    if (sendOsc && pData->engine->isOscControlRegistered())
-    {
-        if (velo > 0)
-            pData->engine->oscSend_control_note_on(pData->id, channel, note, velo);
-        else
-            pData->engine->oscSend_control_note_off(pData->id, channel, note);
-    }
-#endif
-
-    if (sendCallback)
-        pData->engine->callback((velo > 0) ? ENGINE_CALLBACK_NOTE_ON : ENGINE_CALLBACK_NOTE_OFF,
-                                pData->id,
-                                channel,
-                                note,
-                                velo,
-                                0.0f, nullptr);
-
-    // may be unused
-    return; (void)sendOsc;
+    pData->engine->callback(sendCallback, sendOsc,
+                            (velo > 0) ? ENGINE_CALLBACK_NOTE_ON : ENGINE_CALLBACK_NOTE_OFF,
+                            pData->id,
+                            channel,
+                            note,
+                            velo,
+                            0.0f, nullptr);
 }
 
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH

source/backend/plugin/CarlaPluginBridge.cpp

@@ -348,7 +348,8 @@ protected:
                 CarlaString errorString("Plugin '" + CarlaString(kPlugin->getName()) + "' has crashed!\n"
                                         "Saving now will lose its current settings.\n"
                                         "Please remove this plugin, and not rely on it from this point.");
-                kEngine->callback(CarlaBackend::ENGINE_CALLBACK_ERROR, kPlugin->getId(), 0, 0, 0, 0.0f, errorString);
+                kEngine->callback(true, true,
+                                  CarlaBackend::ENGINE_CALLBACK_ERROR, kPlugin->getId(), 0, 0, 0, 0.0f, errorString);
             }
         }
 
@@ -625,7 +626,7 @@ public:
 
 #if 0
         // we waited and blocked for 5 secs, give host idle time now
-        pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+        pData->engine->callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
         if (pData->engine->getType() != kEngineTypePlugin)
             pData->engine->idle();
@@ -645,7 +646,7 @@ public:
 
         for (; Time::getMillisecondCounter() < timeoutEnd && fBridgeThread.isThreadRunning();)
         {
-            pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (needsEngineIdle)
                 pData->engine->idle();
@@ -2251,7 +2252,7 @@ public:
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
                 pData->transientTryCounter = 0;
 #endif
-                pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
+                pData->engine->callback(true, true, ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
                 break;
 
             case kPluginBridgeNonRtServerError: {
@@ -2263,7 +2264,7 @@ public:
 
                 if (fInitiated)
                 {
-                    pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0, 0.0f, error);
+                    pData->engine->callback(true, true, ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0, 0.0f, error);
 
                     // just in case
                     pData->engine->setLastError(error);
@@ -2592,11 +2593,9 @@ private:
 
         if (wasActive)
         {
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-            if (pData->engine->isOscControlRegistered())
-                pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_ACTIVE, 0.0f);
-
-            pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+#ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
                                     pData->id,
                                     PARAMETER_ACTIVE,
                                     0, 0,
@@ -2607,7 +2606,8 @@ private:
 
         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)
         {
-            pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_UI_STATE_CHANGED,
                                     pData->id,
                                     0,
                                     0, 0, 0.0f, nullptr);
@@ -2687,7 +2687,8 @@ private:
         if (needsCancelableAction)
         {
             pData->engine->setActionCanceled(false);
-            pData->engine->callback(ENGINE_CALLBACK_CANCELABLE_ACTION,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_CANCELABLE_ACTION,
                                     pData->id,
                                     1,
                                     0, 0, 0.0f,
@@ -2697,7 +2698,7 @@ private:
 
         for (;fBridgeThread.isThreadRunning();)
         {
-            pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (needsEngineIdle)
                 pData->engine->idle();
@@ -2715,7 +2716,8 @@ private:
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
         if (needsCancelableAction)
         {
-            pData->engine->callback(ENGINE_CALLBACK_CANCELABLE_ACTION,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_CANCELABLE_ACTION,
                                     pData->id,
                                     0,
                                     0, 0, 0.0f,

source/backend/plugin/CarlaPluginDSSI.cpp

@@ -112,7 +112,8 @@ public:
 
             fProcess->kill();
             fProcess = nullptr;
-            kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_UI_STATE_CHANGED,
                               kPlugin->getId(),
                               0,
                               0, 0, 0.0f, nullptr);
@@ -222,7 +223,8 @@ public:
         }
 
         fProcess = nullptr;
-        kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED,
+        kEngine->callback(true, true,
+                          ENGINE_CALLBACK_UI_STATE_CHANGED,
                           kPlugin->getId(),
                           0,
                           0, 0, 0.0f, nullptr);
@@ -1278,7 +1280,7 @@ public:
             if (programChanged)
                 setMidiProgram(pData->midiprog.current, true, true, true, false);
 
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
         }
     }
 
@@ -2385,7 +2387,8 @@ public:
         showCustomUI(false);
 
         // tell frontend
-        pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+        pData->engine->callback(true, true,
+                                ENGINE_CALLBACK_UI_STATE_CHANGED,
                                 pData->id,
                                 0,
                                 0, 0, 0.0f, nullptr);

source/backend/plugin/CarlaPluginFluidSynth.cpp

@@ -522,7 +522,8 @@ public:
                     if (pData->ctrlChannel == static_cast<int32_t>(channel))
                     {
                         pData->midiprog.current = index;
-                        pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
+                        pData->engine->callback(true, true,
+                                                ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
                                                 pData->id,
                                                 index,
                                                 0, 0, 0.0f, nullptr);
@@ -1076,7 +1077,7 @@ public:
         }
         else
         {
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
         }
     }
 

source/backend/plugin/CarlaPluginInternal.cpp

@@ -819,33 +819,23 @@ void CarlaPlugin::ProtectedData::updateParameterValues(CarlaPlugin* const plugin
         if (useDefault)
             param.ranges[i].def = value;
 
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-        if (sendOsc && i < 50)
-        {
-            if (useDefault)
-                engine->oscSend_control_set_default_value(id, i, value);
-            engine->oscSend_control_set_parameter_value(id, static_cast<int32_t>(i), value);
+        if (useDefault) {
+            engine->callback(sendCallback, sendOsc,
+                              ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED,
+                              id,
+                              static_cast<int>(i),
+                              0, 0,
+                              value,
+                              nullptr);
         }
-#endif
-
-        if (sendCallback)
-        {
-            if (useDefault) {
-                engine->callback(ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED,
-                                 id,
-                                 static_cast<int>(i),
-                                 0, 0,
-                                 value,
-                                 nullptr);
-            }
 
-            engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
-                             id,
-                             static_cast<int>(i),
-                             0, 0,
-                             value,
-                             nullptr);
-        }
+        engine->callback(sendCallback, sendOsc,
+                          ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+                          id,
+                          static_cast<int>(i),
+                          0, 0,
+                          value,
+                          nullptr);
     }
 
     // may be unused

source/backend/plugin/CarlaPluginJack.cpp

@@ -209,7 +209,8 @@ protected:
         {
             CARLA_SAFE_ASSERT_RETURN(std::strcmp(types, "") == 0, 0);
 
-            kEngine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_UI_STATE_CHANGED,
                               kPlugin->getId(),
                               1,
                               0, 0, 0.0f, nullptr);
@@ -219,7 +220,8 @@ protected:
         {
             CARLA_SAFE_ASSERT_RETURN(std::strcmp(types, "") == 0, 0);
 
-            kEngine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+            kEngine->callback(true, true,
+                              ENGINE_CALLBACK_UI_STATE_CHANGED,
                               kPlugin->getId(),
                               0,
                               0, 0, 0.0f, nullptr);
@@ -363,7 +365,8 @@ protected:
                 CarlaString errorString("Plugin '" + CarlaString(kPlugin->getName()) + "' has crashed!\n"
                                         "Saving now will lose its current settings.\n"
                                         "Please remove this plugin, and not rely on it from this point.");
-                kEngine->callback(CarlaBackend::ENGINE_CALLBACK_ERROR,
+                kEngine->callback(true, true,
+                                  ENGINE_CALLBACK_ERROR,
                                   kPlugin->getId(),
                                   0, 0, 0, 0.0f,
                                   errorString);
@@ -1421,7 +1424,8 @@ public:
                 break;
 
             case kPluginBridgeNonRtServerUiClosed:
-                pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_UI_STATE_CHANGED,
                                         pData->id,
                                         0,
                                         0, 0, 0.0f, nullptr);
@@ -1436,7 +1440,7 @@ public:
 
                 if (fInitiated)
                 {
-                    pData->engine->callback(ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0, 0.0f, error);
+                    pData->engine->callback(true, true, ENGINE_CALLBACK_ERROR, pData->id, 0, 0, 0, 0.0f, error);
 
                     // just in case
                     pData->engine->setLastError(error);
@@ -1653,20 +1657,18 @@ private:
 
         if (wasActive)
         {
-#if defined(HAVE_LIBLO) && ! defined(BUILD_BRIDGE)
-            if (pData->engine->isOscControlRegistered())
-                pData->engine->oscSend_control_set_parameter_value(pData->id, PARAMETER_ACTIVE, 0.0f);
-            pData->engine->callback(ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,
                                     pData->id,
                                     PARAMETER_ACTIVE,
                                     0, 0,
                                     0.0f,
                                     nullptr);
-#endif
         }
 
         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)
-            pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_UI_STATE_CHANGED,
                                     pData->id,
                                     0,
                                     0, 0, 0.0f, nullptr);
@@ -1775,7 +1777,8 @@ private:
         if (needsCancelableAction)
         {
             pData->engine->setActionCanceled(false);
-            pData->engine->callback(ENGINE_CALLBACK_CANCELABLE_ACTION,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_CANCELABLE_ACTION,
                                     pData->id,
                                     1,
                                     0, 0, 0.0f,
@@ -1784,7 +1787,7 @@ private:
 
         for (;fBridgeThread.isThreadRunning();)
         {
-            pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (needsEngineIdle)
                 pData->engine->idle();
@@ -1801,7 +1804,8 @@ private:
 
         if (needsCancelableAction)
         {
-            pData->engine->callback(ENGINE_CALLBACK_CANCELABLE_ACTION,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_CANCELABLE_ACTION,
                                     pData->id,
                                     0,
                                     0, 0, 0.0f,

source/backend/plugin/CarlaPluginJuce.cpp

@@ -391,7 +391,8 @@ public:
             if (fWindow->wasClosedByUser())
             {
                 showCustomUI(false);
-                pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_UI_STATE_CHANGED,
                                         pData->id,
                                         0,
                                         0, 0, 0.0f, nullptr);
@@ -713,7 +714,7 @@ public:
                     fInstance->setCurrentProgram(pData->prog.current);
             }
 
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
         }
     }
 
@@ -1171,7 +1172,7 @@ protected:
 
     void audioProcessorChanged(juce::AudioProcessor*) override
     {
-        pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, 0, 0, 0, 0.0f, nullptr);
+        pData->engine->callback(true, true, ENGINE_CALLBACK_UPDATE, pData->id, 0, 0, 0, 0.0f, nullptr);
     }
 
     void audioProcessorParameterChangeGestureBegin(juce::AudioProcessor*, int) override {}

source/backend/plugin/CarlaPluginLV2.cpp

@@ -1406,7 +1406,8 @@ public:
             {
                 CARLA_SAFE_ASSERT(!yesNo);
             }
-            pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
             return;
         }
 
@@ -1429,7 +1430,8 @@ public:
 
                 if (! fPipeServer.startPipeServer(std::min(fLv2Options.sequenceSize, 819200)))
                 {
-                    pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
+                    pData->engine->callback(true, true,
+                                            ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
                     return;
                 }
 
@@ -1578,7 +1580,8 @@ public:
                     }
 
                     if (fUI.window == nullptr && fExt.uishow == nullptr)
-                        return pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0, 0.0f, msg);
+                        return pData->engine->callback(true, true,
+                                                       ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0, 0.0f, msg);
 
                     if (fUI.window != nullptr)
                         fFeatures[kFeatureIdUiParent]->data = fUI.window->getPtr();
@@ -1609,7 +1612,8 @@ public:
                     fUI.handle = nullptr;
                 }
 
-                return pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                return pData->engine->callback(true, true,
+                                               ENGINE_CALLBACK_UI_STATE_CHANGED,
                                                pData->id,
                                                -1,
                                                0, 0, 0.0f,
@@ -1732,7 +1736,8 @@ public:
 #ifndef BUILD_BRIDGE_ALTERNATIVE_ARCH
                 pData->transientTryCounter = 0;
 #endif
-                pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_UI_STATE_CHANGED,
                                         pData->id,
                                         0,
                                         0, 0, 0.0f, nullptr);
@@ -1748,7 +1753,8 @@ public:
         {
             fNeedsUiClose = false;
             showCustomUI(false);
-            pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_UI_STATE_CHANGED,
                                     pData->id,
                                     0,
                                     0, 0, 0.0f, nullptr);
@@ -1769,7 +1775,8 @@ public:
             else if (fUI.handle != nullptr && fExt.uiidle != nullptr && fExt.uiidle->idle(fUI.handle) != 0)
             {
                 showCustomUI(false);
-                pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_UI_STATE_CHANGED,
                                         pData->id,
                                         0,
                                         0, 0, 0.0f, nullptr);
@@ -2910,7 +2917,7 @@ public:
             if (programChanged)
                 setMidiProgram(pData->midiprog.current, true, true, true, false);
 
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
         }
     }
 
@@ -4821,9 +4828,9 @@ public:
                 pData->midiprog.data[index].name = carla_strdup(progDesc->name);
 
                 if (index == pData->midiprog.current)
-                    pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, 0, 0, 0, 0.0, nullptr);
+                    pData->engine->callback(true, true, ENGINE_CALLBACK_UPDATE, pData->id, 0, 0, 0, 0.0, nullptr);
                 else
-                    pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0, nullptr);
+                    pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0, nullptr);
             }
         }
     }

source/backend/plugin/CarlaPluginNative.cpp

@@ -754,7 +754,8 @@ public:
                         if (pData->ctrlChannel == static_cast<int32_t>(channel))
                         {
                             pData->midiprog.current = index;
-                            pData->engine->callback(ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
+                            pData->engine->callback(true, true,
+                                                    ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED,
                                                     pData->id,
                                                     index,
                                                     0, 0, 0.0f, nullptr);
@@ -1390,7 +1391,8 @@ public:
             if (programChanged)
                 setMidiProgram(pData->midiprog.current, true, true, true, false);
 
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS,
+            pData->engine->callback(true, true,
+                                    ENGINE_CALLBACK_RELOAD_PROGRAMS,
                                     pData->id,
                                     0, 0, 0, 0.0f, nullptr);
         }
@@ -2407,7 +2409,7 @@ protected:
 
     void handleUiClosed()
     {
-        pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
+        pData->engine->callback(true, true, ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, 0, 0, 0, 0.0f, nullptr);
         fIsUiVisible = false;
     }
 
@@ -2433,30 +2435,30 @@ protected:
             break;
         case NATIVE_HOST_OPCODE_UPDATE_PARAMETER:
             // TODO
-            pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0, 0.0f, nullptr);
             break;
         case NATIVE_HOST_OPCODE_UPDATE_MIDI_PROGRAM:
             // TODO
-            pData->engine->callback(ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_UPDATE, pData->id, -1, 0, 0, 0.0f, nullptr);
             break;
         case NATIVE_HOST_OPCODE_RELOAD_PARAMETERS:
             reload(); // FIXME
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, -1, 0, 0, 0.0f, nullptr);
             break;
         case NATIVE_HOST_OPCODE_RELOAD_MIDI_PROGRAMS:
             reloadPrograms(false);
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, -1, 0, 0, 0.0f, nullptr);
             break;
         case NATIVE_HOST_OPCODE_RELOAD_ALL:
             reload();
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_ALL, pData->id, -1, 0, 0, 0.0f, nullptr);
             break;
         case NATIVE_HOST_OPCODE_UI_UNAVAILABLE:
-            pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_UI_STATE_CHANGED, pData->id, -1, 0, 0, 0.0f, nullptr);
             fIsUiAvailable = false;
             break;
         case NATIVE_HOST_OPCODE_HOST_IDLE:
-            pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
             break;
         case NATIVE_HOST_OPCODE_INTERNAL_PLUGIN:
             ret = 1;

source/backend/plugin/CarlaPluginSFZero.cpp

@@ -41,7 +41,7 @@ static const ExternalMidiNote kExternalMidiNoteFallback = { -1, 0, 0 };
 
 static void loadingIdleCallbackFunction(void* ptr)
 {
-    ((CarlaEngine*)ptr)->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+    ((CarlaEngine*)ptr)->callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 }
 
 // -------------------------------------------------------------------------------------------------------------------

source/backend/plugin/CarlaPluginVST2.cpp

@@ -510,7 +510,8 @@ public:
 #endif
 
                 if (fUI.window == nullptr)
-                    return pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                    return pData->engine->callback(true, true,
+                                                   ENGINE_CALLBACK_UI_STATE_CHANGED,
                                                    pData->id,
                                                    -1,
                                                    0, 0, 0.0f,
@@ -547,7 +548,8 @@ public:
                     fUI.window = nullptr;
 
                     carla_stderr2("Plugin refused to open its own UI");
-                    return pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+                    return pData->engine->callback(true, true,
+                                                   ENGINE_CALLBACK_UI_STATE_CHANGED,
                                                    pData->id,
                                                    -1,
                                                    0, 0, 0.0f,
@@ -1054,7 +1056,7 @@ public:
                     dispatcher(effSetProgram, 0, pData->prog.current, nullptr, 0.0f);
             }
 
-            pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, true, ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0, 0.0f, nullptr);
         }
     }
 
@@ -1838,7 +1840,8 @@ protected:
         carla_debug("CarlaPluginVST2::handlePluginUIClosed()");
 
         showCustomUI(false);
-        pData->engine->callback(ENGINE_CALLBACK_UI_STATE_CHANGED,
+        pData->engine->callback(true, true,
+                                ENGINE_CALLBACK_UI_STATE_CHANGED,
                                 pData->id,
                                 0,
                                 0, 0, 0.0f, nullptr);
@@ -1944,7 +1947,7 @@ protected:
         case audioMasterIdle:
             CARLA_SAFE_ASSERT_BREAK(pthread_equal(pthread_self(), fMainThread));
 
-            pData->engine->callback(ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
+            pData->engine->callback(true, false, ENGINE_CALLBACK_IDLE, 0, 0, 0, 0, 0.0f, nullptr);
 
             if (pData->engine->getType() != kEngineTypePlugin)
                 pData->engine->idle();
@@ -2193,7 +2196,8 @@ protected:
                     if (pData->prog.current != current)
                     {
                         pData->prog.current = current;
-                        pData->engine->callback(ENGINE_CALLBACK_PROGRAM_CHANGED,
+                        pData->engine->callback(true, true,
+                                                ENGINE_CALLBACK_PROGRAM_CHANGED,
                                                 pData->id,
                                                 current,
                                                 0, 0, 0.0f, nullptr);
@@ -2202,7 +2206,8 @@ protected:
             }
 
             if (! fIsInitializing)
-                pData->engine->callback(ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, 0, 0, 0, 0.0f, nullptr);
+                pData->engine->callback(true, true,
+                                        ENGINE_CALLBACK_RELOAD_PARAMETERS, pData->id, 0, 0, 0, 0.0f, nullptr);
 
             ret = 1;
             break;

source/frontend/carla_control.py

@@ -162,19 +162,19 @@ class CarlaControlServer(Server):
         self.host._add(pluginId)
         self.host._set_pluginInfoUpdate(pluginId, {'name': pluginName})
 
-    @make_method('/carla-control/add_plugin_end', 'i') # FIXME skip name
-    def add_plugin_end_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, = args
-        self.host.PluginAddedCallback.emit(pluginId, "") #self.fPluginsInfo[pluginId].pluginInfo['name'])
-
-    @make_method('/carla-control/remove_plugin', 'i')
-    def remove_plugin_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, = args
-        self.host.PluginRemovedCallback.emit(pluginId)
+    #@make_method('/carla-control/add_plugin_end', 'i') # FIXME skip name
+    #def add_plugin_end_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, = args
+        #self.host.PluginAddedCallback.emit(pluginId, "") #self.fPluginsInfo[pluginId].pluginInfo['name'])
+
+    #@make_method('/carla-control/remove_plugin', 'i')
+    #def remove_plugin_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, = args
+        #self.host.PluginRemovedCallback.emit(pluginId)
 
     @make_method('/carla-control/set_plugin_info1', 'iiiih')
     def set_plugin_info1_callback(self, path, args):
@@ -305,23 +305,23 @@ class CarlaControlServer(Server):
 
         self.host._set_parameterRangesUpdate(pluginId, paramId, paramRanges)
 
-    @make_method('/carla-control/set_parameter_midi_cc', 'iii')
-    def set_parameter_midi_cc_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, paramId, cc = args
-        self.host._set_parameterMidiCC(pluginId, paramId, cc)
-        self.host.ParameterMidiCcChangedCallback.emit(pluginId, paramId, cc)
-
-    @make_method('/carla-control/set_parameter_midi_channel', 'iii')
-    def set_parameter_midi_channel_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, paramId, channel = args
-        self.host._set_parameterMidiChannel(pluginId, paramId, channel)
-        self.host.ParameterMidiChannelChangedCallback.emit(pluginId, paramId, channel)
-
-    @make_method('/carla-control/set_parameter_value', 'iif')
+    #@make_method('/carla-control/set_parameter_midi_cc', 'iii')
+    #def set_parameter_midi_cc_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, paramId, cc = args
+        #self.host._set_parameterMidiCC(pluginId, paramId, cc)
+        #self.host.ParameterMidiCcChangedCallback.emit(pluginId, paramId, cc)
+
+    #@make_method('/carla-control/set_parameter_midi_channel', 'iii')
+    #def set_parameter_midi_channel_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, paramId, channel = args
+        #self.host._set_parameterMidiChannel(pluginId, paramId, channel)
+        #self.host.ParameterMidiChannelChangedCallback.emit(pluginId, paramId, channel)
+
+    @make_method('/carla-control/set_output_parameter_value', 'iif')
     def set_parameter_value_callback(self, path, args):
         pluginId, paramId, paramValue = args
 
@@ -332,29 +332,29 @@ class CarlaControlServer(Server):
 
         self.host.ParameterValueChangedCallback.emit(pluginId, paramId, paramValue)
 
-    @make_method('/carla-control/set_default_value', 'iif')
-    def set_default_value_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, paramId, paramValue = args
-        self.host._set_parameterDefault(pluginId, paramId, paramValue)
-        self.host.ParameterDefaultChangedCallback.emit(pluginId, paramId, paramValue)
-
-    @make_method('/carla-control/set_current_program', 'ii')
-    def set_current_program_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, current = args
-        self.host._set_currentProgram(pluginId, current)
-        self.host.ProgramChangedCallback.emit(pluginId, current)
-
-    @make_method('/carla-control/set_current_midi_program', 'ii')
-    def set_current_midi_program_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, current = args
-        self.host._set_currentMidiProgram(pluginId, current)
-        self.host.MidiProgramChangedCallback.emit(pluginId, current)
+    #@make_method('/carla-control/set_default_value', 'iif')
+    #def set_default_value_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, paramId, paramValue = args
+        #self.host._set_parameterDefault(pluginId, paramId, paramValue)
+        #self.host.ParameterDefaultChangedCallback.emit(pluginId, paramId, paramValue)
+
+    #@make_method('/carla-control/set_current_program', 'ii')
+    #def set_current_program_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, current = args
+        #self.host._set_currentProgram(pluginId, current)
+        #self.host.ProgramChangedCallback.emit(pluginId, current)
+
+    #@make_method('/carla-control/set_current_midi_program', 'ii')
+    #def set_current_midi_program_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, current = args
+        #self.host._set_currentMidiProgram(pluginId, current)
+        #self.host.MidiProgramChangedCallback.emit(pluginId, current)
 
     @make_method('/carla-control/set_program_name', 'iis')
     def set_program_name_callback(self, path, args):
@@ -370,19 +370,19 @@ class CarlaControlServer(Server):
         pluginId, midiProgId, bank, program, name = args
         self.host._set_midiProgramData(pluginId, midiProgId, {'bank': bank, 'program': program, 'name': name})
 
-    @make_method('/carla-control/note_on', 'iiii')
-    def set_note_on_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, channel, note, velocity = args
-        self.host.NoteOnCallback.emit(pluginId, channel, note, velocity)
+    #@make_method('/carla-control/note_on', 'iiii')
+    #def set_note_on_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, channel, note, velocity = args
+        #self.host.NoteOnCallback.emit(pluginId, channel, note, velocity)
 
-    @make_method('/carla-control/note_off', 'iii')
-    def set_note_off_callback(self, path, args):
-        print(path, args)
-        self.fReceivedMsgs = True
-        pluginId, channel, note = args
-        self.host.NoteOffCallback.emit(pluginId, channel, note)
+    #@make_method('/carla-control/note_off', 'iii')
+    #def set_note_off_callback(self, path, args):
+        #print(path, args)
+        #self.fReceivedMsgs = True
+        #pluginId, channel, note = args
+        #self.host.NoteOffCallback.emit(pluginId, channel, note)
 
     @make_method('/carla-control/set_peaks', 'iffff')
     def set_peaks_callback(self, path, args):
@@ -405,6 +405,13 @@ class CarlaControlServer(Server):
         self.host.QuitCallback.emit()
         self.host.ErrorCallback.emit(error)
 
+    @make_method('/carla-control/callback', 'iiiiifs')
+    def set_callback_callback(self, path, args):
+        print(path, args)
+        self.fReceivedMsgs = True
+        action, pluginId, value1, value2, value3, valuef, valueStr = args
+        engineCallback(self.host, action, pluginId, value1, value2, value3, valuef, valueStr)
+
     @make_method(None, None)
     def fallback(self, path, args):
         print("ControlServer::fallback(\"%s\") - unknown message, args =" % path, args)
@@ -415,7 +422,7 @@ class CarlaControlServer(Server):
 
 class HostWindowOSC(HostWindow):
     def __init__(self, host, oscAddr):
-        HostWindow.__init__(self, host, False)
+        HostWindow.__init__(self, host, True)
         self.host = host
 
         if False:
@@ -607,7 +614,10 @@ class HostWindowOSC(HostWindow):
         self.killTimers()
 
         if self.host.lo_target is not None and self.fOscServer is not None:
-            lo_send(self.host.lo_target, "/unregister", self.fOscServer.getFullURL())
+            try:
+                lo_send(self.host.lo_target, "/unregister", self.fOscServer.getFullURL())
+            except:
+                pass
 
         HostWindow.closeEvent(self, event)
 

source/frontend/carla_host.py

@@ -208,7 +208,6 @@ class HostWindow(QMainWindow):
             self.ui.menu_Engine.setEnabled(False)
             self.ui.menu_Engine.setVisible(False)
             self.ui.menu_Engine.menuAction().setVisible(False)
-            self.ui.tabWidget.removeTab(2)
 
             if self.host.isControl:
                 self.ui.act_file_new.setVisible(False)
@@ -223,10 +222,12 @@ class HostWindow(QMainWindow):
                 self.ui.menu_Plugin.setEnabled(False)
                 self.ui.menu_Plugin.setVisible(False)
                 self.ui.menu_Plugin.menuAction().setVisible(False)
-                self.ui.tw_statusbar.setEnabled(False)
-                self.ui.tw_statusbar.setVisible(False)
+                self.ui.tabUtils.removeTab(0)
+                #self.ui.tw_statusbar.setEnabled(False)
+                #self.ui.tw_statusbar.setVisible(False)
             else:
                 self.ui.act_file_save_as.setText(self.tr("Export as..."))
+                self.ui.tabWidget.removeTab(2)
 
         else:
             self.ui.act_engine_start.setEnabled(True)
@@ -324,7 +325,7 @@ class HostWindow(QMainWindow):
         self.ui.l_transport_frame.setMinimumWidth(minValueWidth + 3)
         self.ui.l_transport_time.setMinimumWidth(minValueWidth + 3)
 
-        if host.isControl or host.isPlugin:
+        if host.isPlugin:
             self.ui.b_transport_play.setEnabled(False)
             self.ui.b_transport_stop.setEnabled(False)
             self.ui.b_transport_backwards.setEnabled(False)
@@ -561,7 +562,7 @@ class HostWindow(QMainWindow):
         self.ui.tabWidget.blockSignals(False)
 
         # Start in patchbay tab if using forced patchbay mode
-        if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY and not host.isControl:
+        if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY:
             self.ui.tabWidget.setCurrentIndex(1)
 
         # Load initial project file if set
@@ -913,7 +914,7 @@ class HostWindow(QMainWindow):
         self.ui.act_canvas_show_internal.blockSignals(True)
         self.ui.act_canvas_show_external.blockSignals(True)
 
-        if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not (self.host.isControl or self.host.isPlugin):
+        if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:
             self.ui.act_canvas_show_internal.setChecked(True)
             self.ui.act_canvas_show_internal.setVisible(True)
             self.ui.act_canvas_show_external.setChecked(False)
@@ -932,6 +933,8 @@ class HostWindow(QMainWindow):
             self.ui.act_file_save.setEnabled(canSave)
             self.ui.act_engine_start.setEnabled(False)
             self.ui.act_engine_stop.setEnabled(True)
+
+        if not self.host.isPlugin:
             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)
 
         if self.host.isPlugin or not self.fSessionManagerName:
@@ -1398,7 +1401,7 @@ class HostWindow(QMainWindow):
     def slot_canvasRefresh(self):
         patchcanvas.clear()
 
-        if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):
+        if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:
             return
 
         if self.host.is_engine_running():
@@ -1599,9 +1602,7 @@ class HostWindow(QMainWindow):
 
         settings.setValue("Geometry", self.saveGeometry())
         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())
-
-        if not self.host.isControl:
-            settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())
+        settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())
 
         diskFolders = []
 
@@ -1637,7 +1638,7 @@ class HostWindow(QMainWindow):
             #else:
                 #self.ui.splitter.setSizes([210, 99999])
 
-            showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl
+            showSidePanel = settings.value("ShowSidePanel", True, type=bool)
             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)
             self.slot_showSidePanel(showSidePanel)
 

source/libjack/libjack.cpp

@@ -1098,7 +1098,7 @@ void CarlaJackAppClient::runNonRealtimeThread()
         */
     }
 
-    //callback(ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0.0f, nullptr);
+    //callback(true, true, ENGINE_CALLBACK_ENGINE_STOPPED, 0, 0, 0, 0.0f, nullptr);
 
     if (quitReceived)
     {