Add API for ctrlChannel and options

resources/ui/carla_edit.ui

@@ -293,7 +293,7 @@ Plugin Name
          </property>
          <layout class="QVBoxLayout" name="verticalLayout_2">
           <item>
-           <widget class="QCheckBox" name="checkBox">
+           <widget class="QCheckBox" name="ch_fixed_buffer">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -303,7 +303,7 @@ Plugin Name
            </widget>
           </item>
           <item>
-           <widget class="QCheckBox" name="checkBox_2">
+           <widget class="QCheckBox" name="ch_force_stereo">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -313,7 +313,7 @@ Plugin Name
            </widget>
           </item>
           <item>
-           <widget class="QCheckBox" name="checkBox_3">
+           <widget class="QCheckBox" name="ch_self_automation">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -323,7 +323,7 @@ Plugin Name
            </widget>
           </item>
           <item>
-           <widget class="QCheckBox" name="checkBox_4">
+           <widget class="QCheckBox" name="ch_use_chunks">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -333,7 +333,7 @@ Plugin Name
            </widget>
           </item>
           <item>
-           <widget class="QCheckBox" name="checkBox_5">
+           <widget class="QCheckBox" name="ch_send_all_sound_off">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -343,17 +343,7 @@ Plugin Name
            </widget>
           </item>
           <item>
-           <widget class="QCheckBox" name="checkBox_6">
-            <property name="enabled">
-             <bool>false</bool>
-            </property>
-            <property name="text">
-             <string>Send Note-Off Velocity</string>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QCheckBox" name="checkBox_7">
+           <widget class="QCheckBox" name="ch_send_note_aftertouch">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -363,7 +353,7 @@ Plugin Name
            </widget>
           </item>
           <item>
-           <widget class="QCheckBox" name="checkBox_8">
+           <widget class="QCheckBox" name="ch_send_pitchbend">
             <property name="enabled">
              <bool>false</bool>
             </property>
@@ -513,7 +503,7 @@ Plugin Name
               </widget>
              </item>
              <item>
-              <widget class="QLabel" name="label_5">
+              <widget class="QLabel" name="label_ctrl_channel">
                <property name="enabled">
                 <bool>false</bool>
                </property>
@@ -523,7 +513,7 @@ Plugin Name
               </widget>
              </item>
              <item>
-              <widget class="QSpinBox" name="spinBox">
+              <widget class="QSpinBox" name="sb_ctrl_channel">
                <property name="enabled">
                 <bool>false</bool>
                </property>

source/backend/CarlaBackend.hpp

@@ -77,9 +77,8 @@ const unsigned int PLUGIN_OPTION_FORCE_STEREO         = 0x002; //!< OFF: Force m
 const unsigned int PLUGIN_OPTION_SELF_AUTOMATION      = 0x004; //!< OFF: Let the plugin handle MIDI-CC automation, not the host
 const unsigned int PLUGIN_OPTION_USE_CHUNKS           = 0x008; //!< ON:  Use chunks to save data
 const unsigned int PLUGIN_OPTION_SEND_ALL_SOUND_OFF   = 0x010; //!< ON:  Send MIDI ALL_SOUND_OFF / ALL_NOTES_OFF events
-const unsigned int PLUGIN_OPTION_SEND_NOTE_OFF_VELO   = 0x020; //!< OFF: Send MIDI Note-Off events with a velocity value
-const unsigned int PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH = 0x040; //!< ON:  Send MIDI Note aftertouch events
-const unsigned int PLUGIN_OPTION_SEND_PITCHBEND       = 0x080; //!< ON:  Send MIDI Pitchbend events
+const unsigned int PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH = 0x020; //!< ON:  Send MIDI Note aftertouch events
+const unsigned int PLUGIN_OPTION_SEND_PITCHBEND       = 0x040; //!< ON:  Send MIDI Pitchbend events
 #ifdef WANT_VST
 const unsigned int PLUGIN_OPTION_VST_SUPPLY_IDLE      = 0x100; //!< ON: Idle Plugin's custom GUI (VST only)
 const unsigned int PLUGIN_OPTION_VST_UPDATE_DISPLAY   = 0x200; //!< ON: Recheck plugin properties on updateDisplay message (VST Only)
@@ -205,7 +204,8 @@ enum InternalParametersIndex {
     PARAMETER_BALANCE_LEFT  = -5, //!< Stereo Balance-Left parameter, range -1.0...1.0; default is -1.0.
     PARAMETER_BALANCE_RIGHT = -6, //!< Stereo Balance-Right parameter, range -1.0...1.0; default is 1.0.
     PARAMETER_PANNING       = -7, //!< Mono Panning parameter, range -1.0...1.0; default is 0.0.
-    PARAMETER_MAX           = -8  //!< Max value, defined for convenience
+    PARAMETER_CTRL_CHANNEL  = -8, //!< MIDI Control channel
+    PARAMETER_MAX           = -9  //!< Max value, defined for convenience
 };
 
 /*!

source/backend/CarlaPlugin.hpp

@@ -88,8 +88,6 @@ struct SaveState;
  */
 struct CarlaPluginProtectedData;
 
-class CarlaEngineAudioPort;
-
 /*!
  * \class CarlaPlugin
  *
@@ -154,7 +152,7 @@ public:
     /*!
      * Get the plugin's options.
      *
-     * \see PluginOptions
+     * \see PluginOptions, availableOptions() and setOption()
      */
     unsigned int options() const
     {
@@ -325,6 +323,13 @@ public:
     // -------------------------------------------------------------------
     // Information (per-plugin data)
 
+    /*!
+     * Get the plugin available options.
+     *
+     * \see PluginOptions
+     */
+    virtual unsigned int availableOptions();
+
     /*!
      * Get the current parameter value of \a parameterId.
      */
@@ -432,6 +437,13 @@ public:
      */
     void setId(const unsigned int id);
 
+    /*!
+     * Set a plugin's option.
+     *
+     * \see options()
+     */
+    void setOption(const unsigned int option, const bool yesNo);
+
     /*!
      * Enable or disable the plugin according to \a yesNo.
      *
@@ -501,6 +513,14 @@ public:
      */
     void setPanning(const float value, const bool sendOsc, const bool sendCallback);
 
+    /*!
+     * Set the plugin's midi control channel.
+     *
+     * \param sendOsc Send message change over OSC
+     * \param sendCallback Send message change to registered callback
+     */
+    void setCtrlChannel(const int8_t channel, const bool sendOsc, const bool sendCallback);
+
     // -------------------------------------------------------------------
     // Set data (plugin-specific stuff)
 

source/backend/CarlaStandalone.hpp

@@ -38,6 +38,8 @@ struct CarlaPluginInfo {
     CarlaPluginType type;
     CarlaPluginCategory category;
     unsigned int hints;
+    unsigned int optionsAvailable;
+    unsigned int optionsEnabled;
     const char* binary;
     const char* name;
     const char* label;
@@ -50,6 +52,8 @@ struct CarlaPluginInfo {
         : type(CarlaBackend::PLUGIN_NONE),
           category(CarlaBackend::PLUGIN_CATEGORY_NONE),
           hints(0x0),
+          optionsAvailable(0x0),
+          optionsEnabled(0x0),
           binary(nullptr),
           name(nullptr),
           label(nullptr),
@@ -160,6 +164,8 @@ CARLA_EXPORT bool carla_engine_close();
 CARLA_EXPORT void carla_engine_idle();
 CARLA_EXPORT bool carla_is_engine_running();
 CARLA_EXPORT void carla_set_engine_about_to_close();
+CARLA_EXPORT void carla_set_engine_callback(CarlaCallbackFunc func, void* ptr);
+CARLA_EXPORT void carla_set_engine_option(CarlaOptionsType option, int value, const char* valueStr);
 
 CARLA_EXPORT bool carla_load_project(const char* filename);
 CARLA_EXPORT bool carla_save_project(const char* filename);
@@ -203,12 +209,14 @@ CARLA_EXPORT float carla_get_current_parameter_value(unsigned int pluginId, uint
 CARLA_EXPORT float carla_get_input_peak_value(unsigned int pluginId, unsigned short portId);
 CARLA_EXPORT float carla_get_output_peak_value(unsigned int pluginId, unsigned short portId);
 
+CARLA_EXPORT void carla_set_option(unsigned int pluginId, unsigned int option, bool yesNo);
 CARLA_EXPORT void carla_set_active(unsigned int pluginId, bool onOff);
 CARLA_EXPORT void carla_set_drywet(unsigned int pluginId, float value);
 CARLA_EXPORT void carla_set_volume(unsigned int pluginId, float value);
 CARLA_EXPORT void carla_set_balance_left(unsigned int pluginId, float value);
 CARLA_EXPORT void carla_set_balance_right(unsigned int pluginId, float value);
 CARLA_EXPORT void carla_set_panning(unsigned int pluginId, float value);
+CARLA_EXPORT void carla_set_ctrl_channel(unsigned int pluginId, int8_t channel);
 
 CARLA_EXPORT void carla_set_parameter_value(unsigned int pluginId, uint32_t parameterId, float value);
 CARLA_EXPORT void carla_set_parameter_midi_channel(unsigned int pluginId, uint32_t parameterId, uint8_t channel);
@@ -229,9 +237,6 @@ CARLA_EXPORT double   carla_get_sample_rate();
 CARLA_EXPORT const char* carla_get_last_error();
 CARLA_EXPORT const char* carla_get_host_osc_url();
 
-CARLA_EXPORT void carla_set_callback_function(CarlaCallbackFunc func, void* ptr);
-CARLA_EXPORT void carla_set_option(CarlaOptionsType option, int value, const char* valueStr);
-
 #if 0
 CARLA_EXPORT void carla_nsm_announce(const char* url, int pid);
 CARLA_EXPORT void carla_nsm_reply_open();

source/backend/engine/Makefile

@@ -70,7 +70,7 @@ debug:
 
 # --------------------------------------------------------------
 
-%.cpp.o: %.cpp
+%.cpp.o: %.cpp ../CarlaEngine.hpp CarlaEngineInternal.hpp CarlaEngineOsc.hpp CarlaEngineThread.hpp
 	$(CXX) $< $(BUILD_CXX_FLAGS) -c -o $@
 
 $(SHARED): $(OBJS) $(LIBS)

source/backend/native/Makefile

@@ -14,13 +14,13 @@ LINK_FLAGS      += $(shell pkg-config --libs QtGui gl)
 
 ifeq ($(HAVE_AF_DEPS),true)
 AF_CXX_FLAGS     = $(BUILD_CXX_FLAGS)
-AF_CXX_FLAGS    += $(shell pkg-config --cflags libavcodec libavformat sndfile) -dpthread
+AF_CXX_FLAGS    += $(shell pkg-config --cflags libavcodec libavformat sndfile) -pthread
 LINK_FLAGS      += $(shell pkg-config --libs libavcodec libavformat sndfile) -lpthread
 endif
 
 ifeq ($(HAVE_ZYN_DEPS),true)
 ZYN_CXX_FLAGS    = $(BUILD_CXX_FLAGS)
-ZYN_CXX_FLAGS   += $(shell pkg-config --cflags fftw3 mxml) -dpthread
+ZYN_CXX_FLAGS   += $(shell pkg-config --cflags fftw3 mxml) -pthread
 LINK_FLAGS      += $(shell pkg-config --libs fftw3 mxml) -lpthread
 endif
 

source/backend/plugin/CarlaPlugin.cpp

@@ -70,14 +70,14 @@ CarlaPlugin::CarlaPlugin(CarlaEngine* const engine, const unsigned int id)
     {
     case PROCESS_MODE_SINGLE_CLIENT:
     case PROCESS_MODE_MULTIPLE_CLIENTS:
-        kData->ctrlInChannel = 0;
+        kData->ctrlChannel = 0;
         break;
 
     case PROCESS_MODE_CONTINUOUS_RACK:
         CARLA_ASSERT(id < MAX_RACK_PLUGINS && id < MAX_MIDI_CHANNELS);
 
         if (id < MAX_RACK_PLUGINS && id < MAX_MIDI_CHANNELS)
-            kData->ctrlInChannel = id;
+            kData->ctrlChannel = id;
 
         break;
 
@@ -240,6 +240,11 @@ int32_t CarlaPlugin::chunkData(void** const dataPtr)
 // -------------------------------------------------------------------
 // Information (per-plugin data)
 
+unsigned int CarlaPlugin::availableOptions()
+{
+    return kData->availOptions;
+}
+
 float CarlaPlugin::getParameterValue(const uint32_t parameterId)
 {
     CARLA_ASSERT(parameterId < parameterCount());
@@ -403,7 +408,23 @@ void CarlaPlugin::setId(const unsigned int id)
     fId = id;
 
     if (kData->engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK)
-        kData->ctrlInChannel = id;
+    {
+        CARLA_ASSERT(id < MAX_RACK_PLUGINS);
+
+        if (id >= MAX_RACK_PLUGINS || kData->ctrlChannel == static_cast<int8_t>(id))
+            return;
+
+        kData->ctrlChannel = id;
+        kData->engine->callback(CALLBACK_PARAMETER_VALUE_CHANGED, fId, PARAMETER_CTRL_CHANNEL, 0, id, nullptr);
+    }
+}
+
+void CarlaPlugin::setOption(const unsigned int option, const bool yesNo)
+{
+    if (yesNo)
+        fOptions |= option;
+    else
+        fOptions &= ~option;
 }
 
 void CarlaPlugin::setEnabled(const bool yesNo)
@@ -553,6 +574,36 @@ void CarlaPlugin::setPanning(const float value, const bool sendOsc, const bool s
 #endif
 }
 
+void CarlaPlugin::setCtrlChannel(const int8_t channel, const bool sendOsc, const bool sendCallback)
+{
+    CARLA_SAFE_ASSERT(kData->engine->getProccessMode() != PROCESS_MODE_CONTINUOUS_RACK);
+
+    if (kData->engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK)
+        return;
+
+    if (kData->ctrlChannel != channel)
+    {
+        kData->ctrlChannel = channel;
+
+#ifndef BUILD_BRIDGE
+        const float ctrlf = channel;
+
+        if (sendOsc)
+            kData->engine->osc_send_control_set_parameter_value(fId, PARAMETER_CTRL_CHANNEL, ctrlf);
+#else
+        // unused
+        (void)sendOsc;
+#endif
+
+        if (sendCallback)
+            kData->engine->callback(CALLBACK_PARAMETER_VALUE_CHANGED, fId, PARAMETER_CTRL_CHANNEL, 0, channel, nullptr);
+#ifndef BUILD_BRIDGE
+        else if (fHints & PLUGIN_IS_BRIDGE)
+            osc_send_control(&kData->osc.data, PARAMETER_CTRL_CHANNEL, ctrlf);
+#endif
+    }
+}
+
 // -------------------------------------------------------------------
 // Set data (plugin-specific stuff)
 
@@ -595,6 +646,8 @@ void CarlaPlugin::setParameterValueByRIndex(const int32_t rindex, const float va
         return setBalanceRight(value, sendOsc, sendCallback);
     if (rindex == PARAMETER_PANNING)
         return setPanning(value, sendOsc, sendCallback);
+    if (rindex == PARAMETER_CTRL_CHANNEL)
+        return setCtrlChannel(int8_t(value), sendOsc, sendCallback);
 
     for (uint32_t i=0; i < kData->param.count; i++)
     {
@@ -1171,7 +1224,7 @@ void CarlaPlugin::sendMidiAllNotesOff()
 
     PluginPostRtEvent postEvent;
     postEvent.type   = kPluginPostRtEventNoteOff;
-    postEvent.value1 = kData->ctrlInChannel;
+    postEvent.value1 = kData->ctrlChannel;
     postEvent.value2 = 0;
     postEvent.value3 = 0.0;
 

source/backend/plugin/CarlaPluginInternal.hpp

@@ -392,9 +392,11 @@ struct CarlaPluginProtectedData {
     void* lib;
 
     // misc
-    int8_t       ctrlInChannel;
+    unsigned int availOptions;
     unsigned int extraHints;
+    int8_t       ctrlChannel;
 
+    // latency
     uint32_t latency;
     float**  latencyBuffers;
 
@@ -499,8 +501,9 @@ struct CarlaPluginProtectedData {
           active(false),
           activeBefore(false),
           lib(nullptr),
-          ctrlInChannel(-1),
+          availOptions(0x0),
           extraHints(0x0),
+          ctrlChannel(-1),
           latency(0),
           latencyBuffers(nullptr),
           osc(engine_, plugin, mode) {}

source/backend/plugin/DssiPlugin.cpp

@@ -993,7 +993,7 @@ public:
                     case kEngineControlEventTypeParameter:
                     {
                         // Control backend stuff
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             double value;
 
@@ -1077,12 +1077,12 @@ public:
                     }
 
                     case kEngineControlEventTypeMidiBank:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                             nextBankId = ctrlEvent.param;
                         break;
 
                     case kEngineControlEventTypeMidiProgram:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             const uint32_t nextProgramId = ctrlEvent.param;
 
@@ -1099,7 +1099,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllSoundOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (! allNotesOffSent)
                                 sendMidiAllNotesOff();
@@ -1143,7 +1143,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllNotesOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (! allNotesOffSent)
                                 sendMidiAllNotesOff();

source/backend/plugin/FluidSynthPlugin.cpp

@@ -365,7 +365,7 @@ public:
         else if (index > static_cast<int32_t>(kData->midiprog.count))
             return;
 
-        if (kData->ctrlInChannel < 0 || kData->ctrlInChannel >= 16)
+        if (kData->ctrlChannel < 0 || kData->ctrlChannel >= 16)
             return;
 
         // FIXME
@@ -377,12 +377,12 @@ public:
             if (kData->engine->isOffline())
             {
                 //const CarlaEngine::ScopedLocker m(x_engine, block);
-                fluid_synth_program_select(fSynth, kData->ctrlInChannel, fSynthId, bank, program);
+                fluid_synth_program_select(fSynth, kData->ctrlChannel, fSynthId, bank, program);
             }
             else
             {
                 //const ScopedDisabler m(this, block);
-                fluid_synth_program_select(fSynth, kData->ctrlInChannel, fSynthId, bank, program);
+                fluid_synth_program_select(fSynth, kData->ctrlChannel, fSynthId, bank, program);
             }
         }
 
@@ -932,8 +932,8 @@ public:
 
             uint32_t nextBankIds[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0 };
 
-            if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlInChannel >= 0 && kData->ctrlInChannel < 16)
-                nextBankIds[kData->ctrlInChannel] = kData->midiprog.data[kData->midiprog.current].bank;
+            if (kData->midiprog.current >= 0 && kData->midiprog.count > 0 && kData->ctrlChannel >= 0 && kData->ctrlChannel < 16)
+                nextBankIds[kData->ctrlChannel] = kData->midiprog.data[kData->midiprog.current].bank;
 
             for (i=0; i < nEvents; i++)
             {
@@ -974,7 +974,7 @@ public:
                     case kEngineControlEventTypeParameter:
                     {
                         // Control backend stuff
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             double value;
 
@@ -1072,7 +1072,7 @@ public:
                             {
                                 if (kData->midiprog.data[k].bank == bankId && kData->midiprog.data[k].program == progId)
                                 {
-                                    if (event.channel == kData->ctrlInChannel)
+                                    if (event.channel == kData->ctrlChannel)
                                     {
                                         setMidiProgram(k, false, false, false, false);
                                         postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0);
@@ -1087,7 +1087,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllSoundOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (! allNotesOffSent)
                                 sendMidiAllNotesOff();
@@ -1100,7 +1100,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllNotesOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (! allNotesOffSent)
                                 sendMidiAllNotesOff();

source/backend/plugin/LadspaPlugin.cpp

@@ -837,7 +837,7 @@ public:
                     case kEngineControlEventTypeParameter:
                     {
                         // Control backend stuff
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             double value;
 
@@ -925,7 +925,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllSoundOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (fDescriptor->deactivate != nullptr)
                             {

source/backend/plugin/Makefile

@@ -55,7 +55,7 @@ debug:
 
 # --------------------------------------------------------------
 
-%.cpp.o: %.cpp
+%.cpp.o: %.cpp ../CarlaPlugin.hpp CarlaPluginInternal.hpp CarlaPluginThread.hpp
 	$(CXX) $< $(BUILD_CXX_FLAGS) -c -o $@
 
 $(SHARED): $(OBJS) $(LIBS)

source/backend/plugin/NativePlugin.cpp

@@ -1115,7 +1115,7 @@ public:
                     case kEngineControlEventTypeParameter:
                     {
                         // Control backend stuff
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             double value;
 
@@ -1199,12 +1199,12 @@ public:
                     }
 
                     case kEngineControlEventTypeMidiBank:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                             nextBankId = ctrlEvent.param;
                         break;
 
                     case kEngineControlEventTypeMidiProgram:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             const uint32_t nextProgramId = ctrlEvent.param;
 
@@ -1221,7 +1221,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllSoundOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (! allNotesOffSent)
                                 sendMidiAllNotesOff();
@@ -1262,7 +1262,7 @@ public:
                         break;
 
                     case kEngineControlEventTypeAllNotesOff:
-                        if (event.channel == kData->ctrlInChannel)
+                        if (event.channel == kData->ctrlChannel)
                         {
                             if (! allNotesOffSent)
                                 sendMidiAllNotesOff();

source/backend/standalone/CarlaStandalone.cpp

@@ -319,6 +319,127 @@ void carla_set_engine_about_to_close()
         standalone.engine->setAboutToClose();
 }
 
+void carla_set_engine_callback(CarlaBackend::CallbackFunc func, void* ptr)
+{
+    carla_debug("carla_set_engine_callback(%p)", func);
+
+    standalone.callback    = func;
+    standalone.callbackPtr = ptr;
+
+    if (standalone.engine != nullptr)
+        standalone.engine->setCallback(func, ptr);
+}
+
+void carla_set_engine_option(CarlaBackend::OptionsType option, int value, const char* valueStr)
+{
+    carla_debug("carla_set_engine_option(%s, %i, \"%s\")", CarlaBackend::OptionsType2Str(option), value, valueStr);
+
+#ifndef BUILD_BRIDGE
+    if (standalone.engine != nullptr)
+        standalone.engine->setOption(option, value, valueStr);
+#endif
+
+    switch (option)
+    {
+    case CarlaBackend::OPTION_PROCESS_NAME:
+        standalone.procName = valueStr;
+        break;
+
+    case CarlaBackend::OPTION_PROCESS_MODE:
+        if (value < CarlaBackend::PROCESS_MODE_SINGLE_CLIENT || value > CarlaBackend::PROCESS_MODE_PATCHBAY)
+            return carla_stderr2("carla_set_engine_option(OPTION_PROCESS_MODE, %i, \"%s\") - invalid value", value, valueStr);
+
+        standalone.options.processMode = static_cast<CarlaBackend::ProcessMode>(value);
+        break;
+
+    case CarlaBackend::OPTION_FORCE_STEREO:
+        standalone.options.forceStereo = (value != 0);
+        break;
+
+    case CarlaBackend::OPTION_PREFER_PLUGIN_BRIDGES:
+        standalone.options.preferPluginBridges = (value != 0);
+        break;
+
+    case CarlaBackend::OPTION_PREFER_UI_BRIDGES:
+        standalone.options.preferUiBridges = (value != 0);
+        break;
+
+#ifdef WANT_DSSI
+    case CarlaBackend::OPTION_USE_DSSI_VST_CHUNKS:
+        standalone.options.useDssiVstChunks = (value != 0);
+        break;
+#endif
+
+    case CarlaBackend::OPTION_MAX_PARAMETERS:
+        standalone.options.maxParameters = (value > 0) ? static_cast<unsigned int>(value) : CarlaBackend::MAX_DEFAULT_PARAMETERS;
+        break;
+
+    case CarlaBackend::OPTION_OSC_UI_TIMEOUT:
+        standalone.options.oscUiTimeout = static_cast<unsigned int>(value);
+        break;
+
+    case CarlaBackend::OPTION_PREFERRED_BUFFER_SIZE:
+        standalone.options.preferredBufferSize = static_cast<unsigned int>(value);
+        break;
+
+    case CarlaBackend::OPTION_PREFERRED_SAMPLE_RATE:
+        standalone.options.preferredSampleRate = static_cast<unsigned int>(value);
+        break;
+
+#ifndef BUILD_BRIDGE
+    case CarlaBackend::OPTION_PATH_BRIDGE_NATIVE:
+        standalone.options.bridge_native = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_POSIX32:
+        standalone.options.bridge_posix32 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_POSIX64:
+        standalone.options.bridge_posix64 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_WIN32:
+        standalone.options.bridge_win32 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_WIN64:
+        standalone.options.bridge_win64 = valueStr;
+        break;
+#endif
+#ifdef WANT_LV2
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_GTK2:
+        standalone.options.bridge_lv2gtk2 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_GTK3:
+        standalone.options.bridge_lv2gtk3 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_QT4:
+        standalone.options.bridge_lv2qt4 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_QT5:
+        standalone.options.bridge_lv2qt5 = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_COCOA:
+        standalone.options.bridge_lv2cocoa = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_WINDOWS:
+        standalone.options.bridge_lv2win = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_X11:
+        standalone.options.bridge_lv2x11 = valueStr;
+        break;
+#endif
+#ifdef WANT_VST
+    case CarlaBackend::OPTION_PATH_BRIDGE_VST_COCOA:
+        standalone.options.bridge_vstcocoa = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_VST_HWND:
+        standalone.options.bridge_vsthwnd = valueStr;
+        break;
+    case CarlaBackend::OPTION_PATH_BRIDGE_VST_X11:
+        standalone.options.bridge_vstx11 = valueStr;
+        break;
+#endif
+    }
+}
+
 // -------------------------------------------------------------------------------------------------------------------
 
 bool carla_load_project(const char* filename)
@@ -395,10 +516,13 @@ const CarlaPluginInfo* carla_get_plugin_info(unsigned int pluginId)
     info.type     = CarlaBackend::PLUGIN_NONE;
     info.category = CarlaBackend::PLUGIN_CATEGORY_NONE;
     info.hints    = 0x0;
+    info.hints    = 0x0;
     info.binary   = nullptr;
     info.name     = nullptr;
     info.uniqueId = 0;
     info.latency  = 0;
+    info.optionsAvailable = 0x0;
+    info.optionsEnabled   = 0x0;
 
     // cleanup
     if (info.label != nullptr)
@@ -436,6 +560,9 @@ const CarlaPluginInfo* carla_get_plugin_info(unsigned int pluginId)
         info.uniqueId = plugin->uniqueId();
         info.latency  = plugin->latency();
 
+        info.optionsAvailable = plugin->availableOptions();
+        info.optionsEnabled   = plugin->options();
+
         plugin->getLabel(strBufLabel);
         info.label = carla_strdup(strBufLabel);
 
@@ -1061,6 +1188,20 @@ float carla_get_output_peak_value(unsigned int pluginId, unsigned short portId)
 
 // -------------------------------------------------------------------------------------------------------------------
 
+void carla_set_option(unsigned int pluginId, unsigned int option, bool yesNo)
+{
+    carla_debug("carla_set_option(%i, %i, %s)", pluginId, option, bool2str(yesNo));
+    CARLA_ASSERT(standalone.engine != nullptr);
+
+    if (standalone.engine == nullptr)
+        return;
+
+    if (CarlaPlugin* const plugin = standalone.engine->getPlugin(pluginId))
+        return plugin->setOption(option, yesNo);
+
+    carla_stderr2("carla_set_option(%i, %i, %s) - could not find plugin", pluginId, option, bool2str(yesNo));
+}
+
 void carla_set_active(unsigned int pluginId, bool onOff)
 {
     carla_debug("carla_set_active(%i, %s)", pluginId, bool2str(onOff));
@@ -1145,6 +1286,20 @@ void carla_set_panning(unsigned int pluginId, float value)
     carla_stderr2("carla_set_panning(%i, %f) - could not find plugin", pluginId, value);
 }
 
+void carla_set_ctrl_channel(unsigned int pluginId, int8_t channel)
+{
+    carla_debug("carla_set_ctrl_channel(%i, %i)", pluginId, channel);
+    CARLA_ASSERT(standalone.engine != nullptr);
+
+    if (standalone.engine == nullptr)
+        return;
+
+    if (CarlaPlugin* const plugin = standalone.engine->getPlugin(pluginId))
+        return plugin->setCtrlChannel(channel, true, false);
+
+    carla_stderr2("carla_set_ctrl_channel(%i, %i) - could not find plugin", pluginId, channel);
+}
+
 // -------------------------------------------------------------------------------------------------------------------
 
 void carla_set_parameter_value(unsigned int pluginId, uint32_t parameterId, float value)
@@ -1392,129 +1547,6 @@ const char* carla_get_host_osc_url()
     return standalone.engine->getOscServerPathTCP();
 }
 
-// -------------------------------------------------------------------------------------------------------------------
-
-void carla_set_callback_function(CarlaBackend::CallbackFunc func, void* ptr)
-{
-    carla_debug("carla_set_callback_function(%p)", func);
-
-    standalone.callback    = func;
-    standalone.callbackPtr = ptr;
-
-    if (standalone.engine != nullptr)
-        standalone.engine->setCallback(func, ptr);
-}
-
-void carla_set_option(CarlaBackend::OptionsType option, int value, const char* valueStr)
-{
-    carla_debug("carla_set_option(%s, %i, \"%s\")", CarlaBackend::OptionsType2Str(option), value, valueStr);
-
-#ifndef BUILD_BRIDGE
-    if (standalone.engine != nullptr)
-        standalone.engine->setOption(option, value, valueStr);
-#endif
-
-    switch (option)
-    {
-    case CarlaBackend::OPTION_PROCESS_NAME:
-        standalone.procName = valueStr;
-        break;
-
-    case CarlaBackend::OPTION_PROCESS_MODE:
-        if (value < CarlaBackend::PROCESS_MODE_SINGLE_CLIENT || value > CarlaBackend::PROCESS_MODE_PATCHBAY)
-            return carla_stderr2("carla_set_option(OPTION_PROCESS_MODE, %i, \"%s\") - invalid value", value, valueStr);
-
-        standalone.options.processMode = static_cast<CarlaBackend::ProcessMode>(value);
-        break;
-
-    case CarlaBackend::OPTION_FORCE_STEREO:
-        standalone.options.forceStereo = (value != 0);
-        break;
-
-    case CarlaBackend::OPTION_PREFER_PLUGIN_BRIDGES:
-        standalone.options.preferPluginBridges = (value != 0);
-        break;
-
-    case CarlaBackend::OPTION_PREFER_UI_BRIDGES:
-        standalone.options.preferUiBridges = (value != 0);
-        break;
-
-#ifdef WANT_DSSI
-    case CarlaBackend::OPTION_USE_DSSI_VST_CHUNKS:
-        standalone.options.useDssiVstChunks = (value != 0);
-        break;
-#endif
-
-    case CarlaBackend::OPTION_MAX_PARAMETERS:
-        standalone.options.maxParameters = (value > 0) ? static_cast<unsigned int>(value) : CarlaBackend::MAX_DEFAULT_PARAMETERS;
-        break;
-
-    case CarlaBackend::OPTION_OSC_UI_TIMEOUT:
-        standalone.options.oscUiTimeout = static_cast<unsigned int>(value);
-        break;
-
-    case CarlaBackend::OPTION_PREFERRED_BUFFER_SIZE:
-        standalone.options.preferredBufferSize = static_cast<unsigned int>(value);
-        break;
-
-    case CarlaBackend::OPTION_PREFERRED_SAMPLE_RATE:
-        standalone.options.preferredSampleRate = static_cast<unsigned int>(value);
-        break;
-
-#ifndef BUILD_BRIDGE
-    case CarlaBackend::OPTION_PATH_BRIDGE_NATIVE:
-        standalone.options.bridge_native = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_POSIX32:
-        standalone.options.bridge_posix32 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_POSIX64:
-        standalone.options.bridge_posix64 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_WIN32:
-        standalone.options.bridge_win32 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_WIN64:
-        standalone.options.bridge_win64 = valueStr;
-        break;
-#endif
-#ifdef WANT_LV2
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_GTK2:
-        standalone.options.bridge_lv2gtk2 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_GTK3:
-        standalone.options.bridge_lv2gtk3 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_QT4:
-        standalone.options.bridge_lv2qt4 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_QT5:
-        standalone.options.bridge_lv2qt5 = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_COCOA:
-        standalone.options.bridge_lv2cocoa = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_WINDOWS:
-        standalone.options.bridge_lv2win = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_LV2_X11:
-        standalone.options.bridge_lv2x11 = valueStr;
-        break;
-#endif
-#ifdef WANT_VST
-    case CarlaBackend::OPTION_PATH_BRIDGE_VST_COCOA:
-        standalone.options.bridge_vstcocoa = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_VST_HWND:
-        standalone.options.bridge_vsthwnd = valueStr;
-        break;
-    case CarlaBackend::OPTION_PATH_BRIDGE_VST_X11:
-        standalone.options.bridge_vstx11 = valueStr;
-        break;
-#endif
-    }
-}
-
 #if 0
 // -------------------------------------------------------------------------------------------------------------------
 

source/bridges/CarlaBridgePlugin.cpp

@@ -158,7 +158,7 @@ public:
         carla_debug("CarlaPluginClient::CarlaPluginClient()");
 
         carla_engine_init("JACK", name);
-        carla_set_callback_function(callback, this);
+        carla_set_engine_callback(callback, this);
     }
 
     ~CarlaPluginClient()

source/carla.py

@@ -626,15 +626,15 @@ class CarlaMainW(QMainWindow):
             print("LADISH detected but using multiple clients (not allowed), forcing single client now")
             Carla.processMode = PROCESS_MODE_SINGLE_CLIENT
 
-        Carla.host.set_option(OPTION_PROCESS_MODE, Carla.processMode, "")
-        Carla.host.set_option(OPTION_MAX_PARAMETERS, Carla.maxParameters, "")
-        Carla.host.set_option(OPTION_FORCE_STEREO, forceStereo, "")
-        Carla.host.set_option(OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")
-        Carla.host.set_option(OPTION_PREFER_UI_BRIDGES, preferUiBridges, "")
-        Carla.host.set_option(OPTION_USE_DSSI_VST_CHUNKS, useDssiVstChunks, "")
-        Carla.host.set_option(OPTION_OSC_UI_TIMEOUT, oscUiTimeout, "")
-        Carla.host.set_option(OPTION_PREFERRED_BUFFER_SIZE, preferredBufferSize, "")
-        Carla.host.set_option(OPTION_PREFERRED_SAMPLE_RATE, preferredSampleRate, "")
+        Carla.host.set_engine_option(OPTION_PROCESS_MODE, Carla.processMode, "")
+        Carla.host.set_engine_option(OPTION_MAX_PARAMETERS, Carla.maxParameters, "")
+        Carla.host.set_engine_option(OPTION_FORCE_STEREO, forceStereo, "")
+        Carla.host.set_engine_option(OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")
+        Carla.host.set_engine_option(OPTION_PREFER_UI_BRIDGES, preferUiBridges, "")
+        Carla.host.set_engine_option(OPTION_USE_DSSI_VST_CHUNKS, useDssiVstChunks, "")
+        Carla.host.set_engine_option(OPTION_OSC_UI_TIMEOUT, oscUiTimeout, "")
+        Carla.host.set_engine_option(OPTION_PREFERRED_BUFFER_SIZE, preferredBufferSize, "")
+        Carla.host.set_engine_option(OPTION_PREFERRED_SAMPLE_RATE, preferredSampleRate, "")
 
         # ---------------------------------------------
         # Start
@@ -1265,57 +1265,57 @@ if __name__ == '__main__':
 
     # Init backend
     Carla.host = Host(libPrefix)
-    Carla.host.set_callback_function(callbackFunction)
-    Carla.host.set_option(OPTION_PROCESS_NAME, 0, "carla")
+    Carla.host.set_engine_callback(callbackFunction)
+    Carla.host.set_engine_option(OPTION_PROCESS_NAME, 0, "carla")
 
     # Set bridge paths
     if carla_bridge_native:
-        Carla.host.set_option(OPTION_PATH_BRIDGE_NATIVE, 0, carla_bridge_native)
+        Carla.host.set_engine_option(OPTION_PATH_BRIDGE_NATIVE, 0, carla_bridge_native)
 
     if carla_bridge_posix32:
-        Carla.host.set_option(OPTION_PATH_BRIDGE_POSIX32, 0, carla_bridge_posix32)
+        Carla.host.set_engine_option(OPTION_PATH_BRIDGE_POSIX32, 0, carla_bridge_posix32)
 
     if carla_bridge_posix64:
-        Carla.host.set_option(OPTION_PATH_BRIDGE_POSIX64, 0, carla_bridge_posix64)
+        Carla.host.set_engine_option(OPTION_PATH_BRIDGE_POSIX64, 0, carla_bridge_posix64)
 
     if carla_bridge_win32:
-        Carla.host.set_option(OPTION_PATH_BRIDGE_WIN32, 0, carla_bridge_win32)
+        Carla.host.set_engine_option(OPTION_PATH_BRIDGE_WIN32, 0, carla_bridge_win32)
 
     if carla_bridge_win64:
-        Carla.host.set_option(OPTION_PATH_BRIDGE_WIN64, 0, carla_bridge_win64)
+        Carla.host.set_engine_option(OPTION_PATH_BRIDGE_WIN64, 0, carla_bridge_win64)
 
     if WINDOWS:
         if carla_bridge_lv2_windows:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_WINDOWS, 0, carla_bridge_lv2_windows)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_WINDOWS, 0, carla_bridge_lv2_windows)
 
         if carla_bridge_vst_hwnd:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_VST_HWND, 0, carla_bridge_vst_hwnd)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_VST_HWND, 0, carla_bridge_vst_hwnd)
 
     elif MACOS:
         if carla_bridge_lv2_cocoa:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_COCOA, 0, carla_bridge_lv2_cocoa)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_COCOA, 0, carla_bridge_lv2_cocoa)
 
         if carla_bridge_vst_cocoa:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_VST_COCOA, 0, carla_bridge_vst_cocoa)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_VST_COCOA, 0, carla_bridge_vst_cocoa)
 
     else:
         if carla_bridge_lv2_gtk2:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_GTK2, 0, carla_bridge_lv2_gtk2)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_GTK2, 0, carla_bridge_lv2_gtk2)
 
         if carla_bridge_lv2_gtk3:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_GTK3, 0, carla_bridge_lv2_gtk3)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_GTK3, 0, carla_bridge_lv2_gtk3)
 
         if carla_bridge_lv2_qt4:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_QT4, 0, carla_bridge_lv2_qt4)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_QT4, 0, carla_bridge_lv2_qt4)
 
         if carla_bridge_lv2_qt5:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_QT5, 0, carla_bridge_lv2_qt5)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_QT5, 0, carla_bridge_lv2_qt5)
 
         if carla_bridge_lv2_x11:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_LV2_X11, 0, carla_bridge_lv2_x11)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_X11, 0, carla_bridge_lv2_x11)
 
         if carla_bridge_vst_x11:
-            Carla.host.set_option(OPTION_PATH_BRIDGE_VST_X11, 0, carla_bridge_vst_x11)
+            Carla.host.set_engine_option(OPTION_PATH_BRIDGE_VST_X11, 0, carla_bridge_vst_x11)
 
     # Create GUI and start engine
     Carla.gui = CarlaMainW()

source/carla_backend.py

@@ -83,6 +83,8 @@ class CarlaPluginInfo(Structure):
         ("type", c_enum),
         ("category", c_enum),
         ("hints", c_uint),
+        ("optionsAvailable", c_uint),
+        ("optionsEnabled", c_uint),
         ("binary", c_char_p),
         ("name", c_char_p),
         ("label", c_char_p),
@@ -173,10 +175,16 @@ class Host(object):
 
         self.lib.carla_is_engine_running.argtypes = None
         self.lib.carla_is_engine_running.restype = c_bool
-        
+
         self.lib.carla_set_engine_about_to_close.argtypes = None
         self.lib.carla_set_engine_about_to_close.restype = None
 
+        self.lib.carla_set_engine_callback.argtypes = [CallbackFunc, c_void_p]
+        self.lib.carla_set_engine_callback.restype = None
+
+        self.lib.carla_set_engine_option.argtypes = [c_enum, c_int, c_char_p]
+        self.lib.carla_set_engine_option.restype = None
+
         self.lib.carla_load_project.argtypes = [c_char_p]
         self.lib.carla_load_project.restype = c_bool
 
@@ -269,6 +277,9 @@ class Host(object):
         self.lib.carla_get_output_peak_value.argtypes = [c_uint, c_ushort]
         self.lib.carla_get_output_peak_value.restype = c_float
 
+        self.lib.carla_set_option.argtypes = [c_uint, c_uint, c_bool]
+        self.lib.carla_set_option.restype = None
+
         self.lib.carla_set_active.argtypes = [c_uint, c_bool]
         self.lib.carla_set_active.restype = None
 
@@ -287,6 +298,9 @@ class Host(object):
         self.lib.carla_set_panning.argtypes = [c_uint, c_float]
         self.lib.carla_set_panning.restype = None
 
+        self.lib.carla_set_ctrl_channel.argtypes = [c_uint, c_int8]
+        self.lib.carla_set_ctrl_channel.restype = None
+
         self.lib.carla_set_parameter_value.argtypes = [c_uint, c_uint32, c_float]
         self.lib.carla_set_parameter_value.restype = None
 
@@ -329,12 +343,6 @@ class Host(object):
         self.lib.carla_get_host_osc_url.argtypes = None
         self.lib.carla_get_host_osc_url.restype = c_char_p
 
-        self.lib.carla_set_callback_function.argtypes = [CallbackFunc]
-        self.lib.carla_set_callback_function.restype = None
-
-        self.lib.carla_set_option.argtypes = [c_enum, c_int, c_char_p]
-        self.lib.carla_set_option.restype = None
-
         #self.lib.nsm_announce.argtypes = [c_char_p, c_int]
         #self.lib.nsm_announce.restype = None
 
@@ -374,6 +382,13 @@ class Host(object):
     def set_engine_about_to_close(self):
         self.lib.carla_set_engine_about_to_close()
 
+    def set_engine_callback(self, func):
+        self._callback = CallbackFunc(func)
+        self.lib.carla_set_engine_callback(self._callback, c_nullptr)
+
+    def set_engine_option(self, option, value, valueStr):
+        self.lib.carla_set_engine_option(option, value, valueStr.encode("utf-8"))
+
     def load_project(self, filename):
         return self.lib.carla_load_project(filename.encode("utf-8"))
 
@@ -465,6 +480,9 @@ class Host(object):
     def get_output_peak_value(self, pluginId, portId):
         return self.lib.carla_get_output_peak_value(pluginId, portId)
 
+    def set_option(self, pluginId, option, yesNo):
+        self.lib.carla_set_option(pluginId, option, yesNo)
+
     def set_active(self, pluginId, onOff):
         self.lib.carla_set_active(pluginId, onOff)
 
@@ -483,6 +501,9 @@ class Host(object):
     def set_panning(self, pluginId, value):
         self.lib.carla_set_panning(pluginId, value)
 
+    def set_ctrl_channel(self, pluginId, channel):
+        self.lib.carla_set_ctrl_channel(pluginId, channel)
+
     def set_parameter_value(self, pluginId, parameterId, value):
         self.lib.carla_set_parameter_value(pluginId, parameterId, value)
 
@@ -525,13 +546,6 @@ class Host(object):
     def get_sample_rate(self):
         return self.lib.carla_get_sample_rate()
 
-    def set_callback_function(self, func):
-        self._callback = CallbackFunc(func)
-        self.lib.carla_set_callback_function(self._callback)
-
-    def set_option(self, option, value, valueStr):
-        self.lib.carla_set_option(option, value, valueStr.encode("utf-8"))
-
     #def nsm_announce(self, url, pid):
         #self.lib.nsm_announce(url.encode("utf-8"), pid)
 

source/carla_shared.py

@@ -176,9 +176,8 @@ PLUGIN_OPTION_FORCE_STEREO         = 0x002
 PLUGIN_OPTION_SELF_AUTOMATION      = 0x004
 PLUGIN_OPTION_USE_CHUNKS           = 0x008
 PLUGIN_OPTION_SEND_ALL_SOUND_OFF   = 0x010
-PLUGIN_OPTION_SEND_NOTE_OFF_VELO   = 0x020
-PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH = 0x040
-PLUGIN_OPTION_SEND_PITCHBEND       = 0x080
+PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH = 0x020
+PLUGIN_OPTION_SEND_PITCHBEND       = 0x040
 PLUGIN_OPTION_VST_SUPPLY_IDLE      = 0x100
 PLUGIN_OPTION_VST_UPDATE_DISPLAY   = 0x200
 

source/utils/CarlaBackendUtils.hpp

@@ -25,6 +25,39 @@ CARLA_BACKEND_START_NAMESPACE
 
 // -------------------------------------------------
 
+static inline
+const char* PluginOption2Str(const unsigned int& option)
+{
+    switch (option)
+    {
+    case PLUGIN_OPTION_FIXED_BUFFER:
+        return "PLUGIN_OPTION_FIXED_BUFFER";
+    case PLUGIN_OPTION_FORCE_STEREO:
+        return "PLUGIN_OPTION_FORCE_STEREO";
+    case PLUGIN_OPTION_SELF_AUTOMATION:
+        return "PLUGIN_OPTION_SELF_AUTOMATION";
+    case PLUGIN_OPTION_USE_CHUNKS:
+        return "PLUGIN_OPTION_USE_CHUNKS";
+    case PLUGIN_OPTION_SEND_ALL_SOUND_OFF:
+        return "PLUGIN_OPTION_SEND_ALL_SOUND_OFF";
+    case PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH:
+        return "PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH";
+    case PLUGIN_OPTION_SEND_PITCHBEND:
+        return "PLUGIN_OPTION_SEND_PITCHBEND";
+#ifdef WANT_VST
+    case PLUGIN_OPTION_VST_SUPPLY_IDLE:
+        return "PLUGIN_OPTION_VST_SUPPLY_IDLE";
+    case PLUGIN_OPTION_VST_UPDATE_DISPLAY:
+        return "PLUGIN_OPTION_VST_UPDATE_DISPLAY";
+#endif
+    }
+
+    carla_stderr("CarlaBackend::PluginOption2Str(%i) - invalid type", option);
+    return nullptr;
+}
+
+// -------------------------------------------------
+
 static inline
 const char* BinaryType2Str(const BinaryType& type)
 {
@@ -152,6 +185,8 @@ const char* InternalParametersIndex2Str(const InternalParametersIndex& index)
         return "PARAMETER_BALANCE_RIGHT";
     case PARAMETER_PANNING:
         return "PARAMETER_PANNING";
+    case PARAMETER_CTRL_CHANNEL:
+        return "PARAMETER_CTRL_CHANNEL";
     case PARAMETER_MAX:
         return "PARAMETER_MAX";
     }