Carla: Syntax and doxygen fixes, no funtionality changes

c++/carla-backend/carla_backend.doxygen

@@ -241,7 +241,7 @@ EXPAND_ONLY_PREDEF     = NO
 SEARCH_INCLUDES        = YES
 INCLUDE_PATH           =
 INCLUDE_FILE_PATTERNS  =
-PREDEFINED             = CARLA_ENGINE_JACK CARLA_ENGINE_RTAUDIO WANT_LADSPA WANT_DSSI WANT_LV2 WANT_VST WANT_FLUIDSYNTH WANT_LINUXSAMPLER
+PREDEFINED             = DOXYGEN CARLA_ENGINE_JACK CARLA_ENGINE_RTAUDIO WANT_LADSPA WANT_DSSI WANT_LV2 WANT_VST WANT_FLUIDSYNTH WANT_LINUXSAMPLER
 EXPAND_AS_DEFINED      =
 SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------

c++/carla-backend/carla_backend.h

@@ -55,7 +55,7 @@ const unsigned int PLUGIN_IS_BRIDGE          = 0x001; //!< Plugin is a bridge (i
 const unsigned int PLUGIN_IS_SYNTH           = 0x002; //!< Plugin is a synthesizer (produces sound).
 const unsigned int PLUGIN_HAS_GUI            = 0x004; //!< Plugin has its own custom GUI.
 const unsigned int PLUGIN_USES_CHUNKS        = 0x008; //!< Plugin uses chunks to save internal data.\see CarlaPlugin::chunkData()
-const unsigned int PLUGIN_USES_SINGLE_THREAD = 0x010; //!< Plugin has its own custom GUI.
+const unsigned int PLUGIN_USES_SINGLE_THREAD = 0x010; //!< Plugin needs a single thread for both DSP processing and UI events.
 const unsigned int PLUGIN_CAN_DRYWET         = 0x020; //!< Plugin can make use of Dry/Wet controls.
 const unsigned int PLUGIN_CAN_VOLUME         = 0x040; //!< Plugin can make use of Volume controls.
 const unsigned int PLUGIN_CAN_BALANCE        = 0x080; //!< Plugin can make use of Left & Right Balance controls.
@@ -83,6 +83,7 @@ const unsigned int PARAMETER_USES_CUSTOM_TEXT = 0x80; //!< Parameter uses custom
  * @defgroup BridgeMessages Bridge Messages
  *
  * Various bridge related messages, used as configure(<message>, value).
+ * \note This is for internal use only.
  * @{
  */
 const char* const CARLA_BRIDGE_MSG_HIDE_GUI   = "CarlaBridgeHideGUI";   //!< Plugin -> Host call, tells host GUI is now hidden
@@ -110,7 +111,7 @@ enum BinaryType {
  */
 enum PluginType {
     PLUGIN_NONE     = 0, //!< Null plugin type.
-    PLUGIN_INTERNAL = 1, //!< Internal plugin.
+    PLUGIN_INTERNAL = 1, //!< Internal plugin.\see NativePlugin
     PLUGIN_LADSPA   = 2, //!< LADSPA plugin.\see LadspaPlugin
     PLUGIN_DSSI     = 3, //!< DSSI plugin.\see DssiPlugin
     PLUGIN_LV2      = 4, //!< LV2 plugin.\see Lv2Plugin
@@ -120,6 +121,10 @@ enum PluginType {
     PLUGIN_SFZ      = 8  //!< SFZ sound kit, implemented via LinuxSampler.\see LinuxSamplerPlugin
 };
 
+/*!
+ * Plugin category, describing the funtionality of a plugin.\n
+ * When a plugin fails to tell his own category, one is atributted to it based on its name.
+ */
 enum PluginCategory {
     PLUGIN_CATEGORY_NONE      = 0, //!< Null plugin category.
     PLUGIN_CATEGORY_SYNTH     = 1, //!< A synthesizer or generator.
@@ -132,52 +137,67 @@ enum PluginCategory {
     PLUGIN_CATEGORY_OTHER     = 8  //!< Misc plugin (used to check if the plugin has a category).
 };
 
+/*!
+ * Plugin parameter type.
+ */
 enum ParameterType {
-    PARAMETER_UNKNOWN       = 0,
-    PARAMETER_INPUT         = 1,
-    PARAMETER_OUTPUT        = 2,
-    PARAMETER_LATENCY       = 3,
-    PARAMETER_SAMPLE_RATE   = 4,
-    PARAMETER_LV2_FREEWHEEL = 5,
-    PARAMETER_LV2_TIME      = 6
+    PARAMETER_UNKNOWN       = 0, //!< Null parameter type.
+    PARAMETER_INPUT         = 1, //!< Input parameter.
+    PARAMETER_OUTPUT        = 2, //!< Ouput parameter.
+    PARAMETER_LATENCY       = 3, //!< Special latency parameter, used in LADSPA, DSSI and LV2 plugins.
+    PARAMETER_SAMPLE_RATE   = 4, //!< Special sample-rate parameter, used in LADSPA, DSSI and LV2 plugins.
+    PARAMETER_LV2_FREEWHEEL = 5, //!< Special LV2 Plugin parameter used to report freewheel (offline) mode.
+    PARAMETER_LV2_TIME      = 6  //!< Special LV2 Plugin parameter used to report time information.
 };
 
+/*!
+ * Internal parameter indexes.\n
+ * These are special parameters used internally, plugins do not know about their existence.
+ */
 enum InternalParametersIndex {
-    PARAMETER_NULL   = -1,
-    PARAMETER_ACTIVE = -2,
-    PARAMETER_DRYWET = -3,
-    PARAMETER_VOLUME = -4,
-    PARAMETER_BALANCE_LEFT  = -5,
-    PARAMETER_BALANCE_RIGHT = -6
+    PARAMETER_NULL          = -1, //!< Null parameter.
+    PARAMETER_ACTIVE        = -2, //!< Active parameter, can only be 'true' or 'false'; default is 'false'.
+    PARAMETER_DRYWET        = -3, //!< Dry/Wet parameter, range 0.0...1.0; default is 1.0.
+    PARAMETER_VOLUME        = -4, //!< Volume parameter, range 0.0...1.27; default is 1.0.
+    PARAMETER_BALANCE_LEFT  = -5, //!< Balance-Left parameter, range -1.0...1.0; default is -1.0.
+    PARAMETER_BALANCE_RIGHT = -6  //!< Balance-Right parameter, range -1.0...1.0; default is 1.0.
 };
 
+/*!
+ * Custom Data types.\n
+ * The type defines how the value in CustomData is stored.\n
+ * Binary chunks are stored in base64 format.
+ */
 enum CustomDataType {
-    CUSTOM_DATA_INVALID = 0,
-    CUSTOM_DATA_STRING  = 1,
-    CUSTOM_DATA_PATH    = 2,
-    CUSTOM_DATA_CHUNK   = 3,
-    CUSTOM_DATA_BINARY  = 4
+    CUSTOM_DATA_INVALID = 0, //!< Null/Invalid data.
+    CUSTOM_DATA_STRING  = 1, //!< String
+    CUSTOM_DATA_PATH    = 2, //!< Path (same as string, but used for filenames).
+    CUSTOM_DATA_CHUNK   = 3, //!< Binary chunk (known type).
+    CUSTOM_DATA_BINARY  = 4  //!< Binary chunk, used to store any unknown type.
 };
 
+/*!
+ * Plugin custom GUI type.
+ * \see OPTION_PREFER_UI_BRIDGES
+ */
 enum GuiType {
-    GUI_NONE = 0,
-    GUI_INTERNAL_QT4   = 1,
-    GUI_INTERNAL_COCOA = 2,
-    GUI_INTERNAL_HWND  = 3,
-    GUI_INTERNAL_X11   = 4,
-    GUI_EXTERNAL_LV2   = 5,
-    GUI_EXTERNAL_SUIL  = 6,
-    GUI_EXTERNAL_OSC   = 7
+    GUI_NONE           = 0, //!< Null type, plugin has no custom GUI.
+    GUI_INTERNAL_QT4   = 1, //!< Qt4 type, handled internally.
+    GUI_INTERNAL_COCOA = 2, //!< Reparented MacOS native type, handled internally.
+    GUI_INTERNAL_HWND  = 3, //!< Reparented Windows native type, handled internally.
+    GUI_INTERNAL_X11   = 4, //!< Reparented X11 native type, handled internally.
+    GUI_EXTERNAL_LV2   = 5, //!< External LV2-UI type, handled internally.
+    GUI_EXTERNAL_SUIL  = 6, //!< SUIL type, currently used only for lv2 gtk2 direct-access UIs.\note This type will be removed in the future!
+    GUI_EXTERNAL_OSC   = 7  //!< External, osc-bridge controlled, UI.
 };
 
 /*!
- * Options used in the setOption() call.\n
- * These options must be set before calling CarlaEngine::init() or after CarlaEngine::close().
+ * Options used in the set_option() call.\n
+ * These options must be set before calling engine_init() or after engine_close().
  */
 enum OptionsType {
     /*!
      * Try to set the current process name.\n
-     *
      * \note Not available on all platforms.
      */
     OPTION_PROCESS_NAME = 0,
@@ -185,7 +205,6 @@ enum OptionsType {
     /*!
      * Set the engine processing mode.\n
      * Default is PROCESS_MODE_MULTIPLE_CLIENTS.
-     *
      * \see ProcessModeType
      */
     OPTION_PROCESS_MODE = 1,
@@ -205,12 +224,12 @@ enum OptionsType {
     OPTION_MAX_PARAMETERS = 3,
 
     /*!
-     * Prefered buffer size.
+     * Prefered buffer size, currently unused.
      */
     OPTION_PREFERRED_BUFFER_SIZE = 4,
 
     /*!
-     * Prefered sample rate.
+     * Prefered sample rate, currently unused.
      */
     OPTION_PREFERRED_SAMPLE_RATE = 5,
 
@@ -222,7 +241,7 @@ enum OptionsType {
 
     /*!
      * Use (unofficial) dssi-vst chunks feature.\n
-     * Default is no.
+     * Default is no.\n
      * EXPERIMENTAL!
      */
     OPTION_USE_DSSI_VST_CHUNKS = 7,
@@ -345,7 +364,7 @@ enum OptionsType {
 /*!
  * Opcodes sent from the engine callback, as defined by CallbackFunc.
  *
- * \see CarlaEngine::setCallback()
+ * \see set_callback_function()
  */
 enum CallbackType {
     /*!
@@ -459,12 +478,12 @@ enum CallbackType {
     CALLBACK_NSM_ANNOUNCE = 15,
 
     /*!
-     * Non-Session-Manager Open message.
+     * Non-Session-Manager Open message #1.
      */
     CALLBACK_NSM_OPEN1 = 16,
 
     /*!
-     * Non-Session-Manager Open message.
+     * Non-Session-Manager Open message #2.
      */
     CALLBACK_NSM_OPEN2 = 17,
 
@@ -480,34 +499,23 @@ enum CallbackType {
 };
 
 /*!
- * Engine process mode, changed using setOption().
+ * Engine process mode, changed using set_option().
  *
  * \see OPTION_PROCESS_MODE
  */
 enum ProcessModeType {
-    PROCESS_MODE_SINGLE_CLIENT    = 0, //!< Single client mode (dynamic audio input/outputs as needed by plugins)
-    PROCESS_MODE_MULTIPLE_CLIENTS = 1, //!< Multiple client mode (1 client per plugin)
+    PROCESS_MODE_SINGLE_CLIENT    = 0, //!< Single client mode (dynamic input/outputs as needed by plugins)
+    PROCESS_MODE_MULTIPLE_CLIENTS = 1, //!< Multiple client mode (1 master client + 1 client per plugin)
     PROCESS_MODE_CONTINUOUS_RACK  = 2  //!< Single client, "rack" mode. Processes plugins in order of id, with forced stereo.
 };
 
 /*!
  * Callback function the backend will call when something interesting happens.
  *
- * \see CarlaEngine::setCallback()
+ * \see set_callback_function()
  */
 typedef void (*CallbackFunc)(void* ptr, CallbackType action, unsigned short pluginId, int value1, int value2, double value3);
 
-struct midi_program_t {
-    uint32_t bank;
-    uint32_t program;
-    const char* name;
-
-    midi_program_t()
-        : bank(0),
-          program(0),
-          name(nullptr) {}
-};
-
 struct ParameterData {
     ParameterType type;
     int32_t index;
@@ -542,6 +550,17 @@ struct ParameterRanges {
           stepLarge(0.1) {}
 };
 
+struct MidiProgramData {
+    uint32_t bank;
+    uint32_t program;
+    const char* name;
+
+    MidiProgramData()
+        : bank(0),
+          program(0),
+          name(nullptr) {}
+};
+
 struct CustomData {
     CustomDataType type;
     const char* key;

c++/carla-backend/carla_backend_standalone.cpp

@@ -32,46 +32,48 @@ const char* get_extended_license_text()
 {
     qDebug("CarlaBackendStandalone::get_extended_license_text()");
 
-    QString text("<p>This current Carla build is using the following features and 3rd-party code:</p>");
-    text += "<ul>";
+    if (! extendedLicenseText)
+    {
+        QString text("<p>This current Carla build is using the following features and 3rd-party code:</p>");
+        text += "<ul>";
 
 #ifdef WANT_LADSPA
-    text += "<li>LADSPA plugin support, http://www.ladspa.org/</li>";
+        text += "<li>LADSPA plugin support, http://www.ladspa.org/</li>";
 #endif
 #ifdef WANT_DSSI
-    text += "<li>DSSI plugin support, http://dssi.sourceforge.net/</li>";
+        text += "<li>DSSI plugin support, http://dssi.sourceforge.net/</li>";
 #endif
 #ifdef WANT_LV2
-    text += "<li>LV2 plugin support, http://lv2plug.in/</li>";
+        text += "<li>LV2 plugin support, http://lv2plug.in/</li>";
 #endif
 #ifdef WANT_VST
 #  ifdef VESTIGE_HEADER
-    text += "<li>VST plugin support, using VeSTige header by Javier Serrano Polo</li>";
+        text += "<li>VST plugin support, using VeSTige header by Javier Serrano Polo</li>";
 #  else
-    text += "<li>VST plugin support, using official VST SDK 2.4 trademark of Steinberg Media Technologies GmbH</li>";
+        text += "<li>VST plugin support, using official VST SDK 2.4 (trademark of Steinberg Media Technologies GmbH)</li>";
 #  endif
 #endif
 #ifdef WANT_FLUIDSYNTH
-    text += "<li>FluidSynth library for SF2 support, http://www.fluidsynth.org/</li>";
+        text += "<li>FluidSynth library for SF2 support, http://www.fluidsynth.org/</li>";
 #endif
 #ifdef WANT_LINUXSAMPLER
-    text += "<li>LinuxSampler library for GIG and SFZ support*, http://www.linuxsampler.org/</li>";
+        text += "<li>LinuxSampler library for GIG and SFZ support*, http://www.linuxsampler.org/</li>";
 #endif
-    text += "<li>liblo library for OSC support, http://liblo.sourceforge.net/</li>";
+        text += "<li>liblo library for OSC support, http://liblo.sourceforge.net/</li>";
 #ifdef WANT_LV2
-    text += "<li>serd, sord, sratom and lilv libraries for LV2 discovery, http://drobilla.net/software/lilv/</li>";
+        text += "<li>serd, sord, sratom and lilv libraries for LV2 discovery, http://drobilla.net/software/lilv/</li>";
 #endif
 #ifdef CARLA_ENGINE_RTAUDIO
-    text += "<li>RtAudio and RtMidi libraries for extra Audio and MIDI support, http://www.music.mcgill.ca/~gary/rtaudio/</li>";
+        text += "<li>RtAudio and RtMidi libraries for extra Audio and MIDI support, http://www.music.mcgill.ca/~gary/rtaudio/</li>";
 #endif
-    text += "</ul>";
+        text += "</ul>";
 
 #ifdef WANT_LINUXSAMPLER
-    text += "<p>(*) Using LinuxSampler code in commercial hardware or software products is not allowed without prior written authorization by the authors.</p>";
+        text += "<p>(*) Using LinuxSampler code in commercial hardware or software products is not allowed without prior written authorization by the authors.</p>";
 #endif
 
-    if (! extendedLicenseText)
         extendedLicenseText = strdup(text.toUtf8().constData());
+    }
 
     return extendedLicenseText;
 }
@@ -99,7 +101,8 @@ const char* get_engine_driver_name(unsigned int index)
 #ifdef CARLA_ENGINE_JACK
     if (index == 0)
         return "JACK";
-    index -= 1;
+    else
+        index -= 1;
 #endif
 
 #ifdef CARLA_ENGINE_RTAUDIO
@@ -586,11 +589,11 @@ const CarlaBackend::ParameterRanges* get_parameter_ranges(unsigned short plugin_
     return &ranges;
 }
 
-const CarlaBackend::midi_program_t* get_midi_program_data(unsigned short plugin_id, uint32_t midi_program_id)
+const CarlaBackend::MidiProgramData* get_midi_program_data(unsigned short plugin_id, uint32_t midi_program_id)
 {
     qDebug("CarlaBackendStandalone::get_midi_program_data(%i, %i)", plugin_id, midi_program_id);
 
-    static CarlaBackend::midi_program_t data;
+    static CarlaBackend::MidiProgramData data;
 
     CarlaBackend::CarlaPlugin* const plugin = carlaEngine->getPlugin(plugin_id);
 
@@ -1254,11 +1257,11 @@ void set_callback_function(CarlaBackend::CallbackFunc func)
         carlaEngine->setCallback(func, nullptr);
 }
 
-void set_option(CarlaBackend::OptionsType option, int value, const char* valueStr)
+void set_option(CarlaBackend::OptionsType option, int value, const char* value_str)
 {
-    qDebug("CarlaBackendStandalone::set_option(%s, %i, \"%s\")", CarlaBackend::OptionsType2str(option), value, valueStr);
+    qDebug("CarlaBackendStandalone::set_option(%s, %i, \"%s\")", CarlaBackend::OptionsType2str(option), value, value_str);
 
-    CarlaBackend::setOption(option, value, valueStr);
+    CarlaBackend::setOption(option, value, value_str);
 }
 
 // -------------------------------------------------------------------------------------------------------------------
@@ -1340,7 +1343,7 @@ protected:
 
     int nsm_open_handler(const char* const path, const char* const types, lo_arg** const argv, const int argc, const lo_message msg)
     {
-        qDebug("CarlaNSM::nsm_open_handler(%s, %i, %p, %s, %p)", path, argc, argv, types, msg);
+        qDebug("CarlaNSM::nsm_open_handler(\"%s\", \"%s\", %p, %i, %p)", path, types, argv, argc, msg);
 
         if (! carlaFunc)
             return 1;
@@ -1365,7 +1368,7 @@ protected:
 
     int nsm_save_handler(const char* const path, const char* const types, lo_arg** const argv, const int argc, const lo_message msg)
     {
-        qDebug("CarlaNSM::nsm_save_handler(%s, %i, %p, %s, %p)", path, argc, argv, types, msg);
+        qDebug("CarlaNSM::nsm_save_handler(\"%s\", \"%s\", %p, %i, %p)", path, types, argv, argc, msg);
 
         if (! carlaFunc)
             return 1;

c++/carla-backend/carla_backend_standalone.h

@@ -25,7 +25,7 @@
 /*!
  * @defgroup CarlaBackendStandalone Carla Backend Standalone
  *
- * The Carla Backend Standalone
+ * The Carla Backend Standalone API
  *
  * @{
  */
@@ -120,7 +120,7 @@ CARLA_EXPORT const GuiInfo* get_gui_info(unsigned short plugin_id);
 
 CARLA_EXPORT const CarlaBackend::ParameterData* get_parameter_data(unsigned short plugin_id, uint32_t parameter_id);
 CARLA_EXPORT const CarlaBackend::ParameterRanges* get_parameter_ranges(unsigned short plugin_id, uint32_t parameter_id);
-CARLA_EXPORT const CarlaBackend::midi_program_t* get_midi_program_data(unsigned short plugin_id, uint32_t midi_program_id);
+CARLA_EXPORT const CarlaBackend::MidiProgramData* get_midi_program_data(unsigned short plugin_id, uint32_t midi_program_id);
 CARLA_EXPORT const CarlaBackend::CustomData* get_custom_data(unsigned short plugin_id, uint32_t custom_data_id);
 CARLA_EXPORT const char* get_chunk_data(unsigned short plugin_id);
 
@@ -172,7 +172,7 @@ CARLA_EXPORT const char* get_last_error();
 CARLA_EXPORT const char* get_host_osc_url();
 
 CARLA_EXPORT void set_callback_function(CarlaBackend::CallbackFunc func);
-CARLA_EXPORT void set_option(CarlaBackend::OptionsType option, int value, const char* valueStr);
+CARLA_EXPORT void set_option(CarlaBackend::OptionsType option, int value, const char* value_str);
 
 CARLA_EXPORT void nsm_announce(const char* url, int pid);
 CARLA_EXPORT void nsm_reply_open();

c++/carla-backend/carla_bridge.cpp

@@ -391,7 +391,7 @@ public:
             midiprog.count = count;
 
             if (midiprog.count > 0)
-                midiprog.data = new midi_program_t [midiprog.count];
+                midiprog.data = new MidiProgramData[midiprog.count];
             else
                 midiprog.data = nullptr;
 

c++/carla-backend/carla_engine.cpp

@@ -508,6 +508,7 @@ void CarlaEngine::callback(const CallbackType action, const unsigned short plugi
 void CarlaEngine::setCallback(const CallbackFunc func, void* const ptr)
 {
     qDebug("CarlaEngine::setCallback(%p, %p)", func, ptr);
+    CARLA_ASSERT(func);
 
     m_callback = func;
     m_callbackPtr = ptr;

c++/carla-backend/carla_engine.h

@@ -346,9 +346,9 @@ public:
          * \param engine The engine to lock
          * \param lock Wherever to lock the engine or not, true by default
          */
-        ScopedLocker(CarlaEngine* const engine, bool lock = true) :
-            m_engine(engine),
-            m_lock(lock)
+        ScopedLocker(CarlaEngine* const engine, bool lock = true)
+            : m_engine(engine),
+              m_lock(lock)
         {
             if (m_lock)
                 m_engine->processLock();

c++/carla-backend/carla_native.cpp

@@ -779,7 +779,7 @@ public:
         midiprog.count = descriptor->midiProgramCount;
 
         if (midiprog.count > 0)
-            midiprog.data = new midi_program_t[midiprog.count];
+            midiprog.data = new MidiProgramData[midiprog.count];
 
         // Update data
         for (i=0; i < midiprog.count; i++)

c++/carla-backend/carla_osc.cpp

@@ -25,8 +25,8 @@ void osc_error_handler(const int num, const char* const msg, const char* const p
     qCritical("osc_error_handler(%i, %s, %s)", num, msg, path);
 }
 
-CarlaOsc::CarlaOsc(CarlaEngine* const engine_) :
-    engine(engine_)
+CarlaOsc::CarlaOsc(CarlaEngine* const engine_)
+    : engine(engine_)
 {
     CARLA_ASSERT(engine);
     qDebug("CarlaOsc::CarlaOsc(%p)", engine_);

c++/carla-backend/carla_plugin.h

@@ -143,7 +143,7 @@ struct PluginProgramData {
 struct PluginMidiProgramData {
     uint32_t count;
     int32_t current;
-    midi_program_t* data;
+    MidiProgramData* data;
 
     PluginMidiProgramData()
         : count(0),
@@ -178,10 +178,10 @@ struct ExternalMidiNote {
 };
 
 // fallback data
-static ParameterData   paramDataNull;
-static ParameterRanges paramRangesNull;
-static midi_program_t  midiProgramNull;
-static CustomData      customDataNull;
+static ParameterData    paramDataNull;
+static ParameterRanges  paramRangesNull;
+static MidiProgramData  midiProgramDataNull;
+static CustomData       customDataNull;
 
 /*!
  * \class CarlaPlugin
@@ -535,14 +535,14 @@ public:
      *
      * \see getMidiProgramName()
      */
-    const midi_program_t* midiProgramData(const uint32_t index) const
+    const MidiProgramData* midiProgramData(const uint32_t index) const
     {
         CARLA_ASSERT(index < midiprog.count);
 
         if (index < midiprog.count)
             return &midiprog.data[index];
 
-        return &midiProgramNull;
+        return &midiProgramDataNull;
     }
 
     /*!
@@ -2156,9 +2156,9 @@ public:
          * \param plugin The plugin to disable
          * \param disable Wherever to disable the plugin or not, true by default
          */
-        ScopedDisabler(CarlaPlugin* const plugin, const bool disable = true) :
-            m_plugin(plugin),
-            m_disable(disable)
+        ScopedDisabler(CarlaPlugin* const plugin, const bool disable = true)
+            : m_plugin(plugin),
+              m_disable(disable)
         {
             if (m_disable)
             {

c++/carla-backend/carla_threads.cpp

@@ -175,11 +175,11 @@ const char* PluginThreadMode2str(const CarlaPluginThread::PluginThreadMode mode)
     return nullptr;
 }
 
-CarlaPluginThread::CarlaPluginThread(CarlaBackend::CarlaEngine* const engine_, CarlaBackend::CarlaPlugin* const plugin_, const PluginThreadMode mode_, QObject* const parent) :
-    QThread(parent),
-    engine(engine_),
-    plugin(plugin_),
-    mode(mode_)
+CarlaPluginThread::CarlaPluginThread(CarlaBackend::CarlaEngine* const engine_, CarlaBackend::CarlaPlugin* const plugin_, const PluginThreadMode mode_, QObject* const parent)
+    : QThread(parent),
+      engine(engine_),
+      plugin(plugin_),
+      mode(mode_)
 {
     qDebug("CarlaPluginThread::CarlaPluginThread(plugin:\"%s\", engine:\"%s\", %s)", plugin->name(), engine->getName(), PluginThreadMode2str(mode));
 

c++/carla-backend/dssi.cpp

@@ -731,7 +731,7 @@ public:
         }
 
         if (midiprog.count > 0)
-            midiprog.data = new midi_program_t[midiprog.count];
+            midiprog.data = new MidiProgramData[midiprog.count];
 
         // Update data
         for (i=0; i < midiprog.count; i++)

c++/carla-backend/fluidsynth.cpp

@@ -762,7 +762,7 @@ public:
         CARLA_ASSERT(midiprog.count > 0);
 
         if (midiprog.count > 0)
-            midiprog.data = new midi_program_t[midiprog.count];
+            midiprog.data = new MidiProgramData[midiprog.count];
 
         // Update data
         uint32_t i = 0;

c++/carla-backend/linuxsampler.cpp

@@ -247,7 +247,7 @@ public:
         CARLA_ASSERT(midiprog.count > 0);
 
         if (midiprog.count > 0)
-            midiprog.data = new midi_program_t [midiprog.count];
+            midiprog.data = new MidiProgramData[midiprog.count];
 
         // Update data
         for (i=0; i < midiprog.count; i++)

c++/carla-backend/lv2.cpp

@@ -1758,7 +1758,7 @@ public:
         }
 
         if (midiprog.count > 0)
-            midiprog.data = new midi_program_t[midiprog.count];
+            midiprog.data = new MidiProgramData[midiprog.count];
 
         // Update data
         for (i=0; i < midiprog.count; i++)

c++/carla-backend/plugins/midi-split.cpp

@@ -22,7 +22,8 @@
 class MidiSplitPlugin : public PluginDescriptorClass
 {
 public:
-    MidiSplitPlugin(const PluginDescriptorClass* master) : PluginDescriptorClass(master)
+    MidiSplitPlugin(const PluginDescriptorClass* master)
+        : PluginDescriptorClass(master)
     {
         if (! master)
             return;

c++/carla-backend/qtcreator/carla-backend.pro

@@ -10,7 +10,7 @@ PKGCONFIG += fluidsynth linuxsampler
 PKGCONFIG += suil-0
 
 TARGET   = carla_backend
-TEMPLATE = lib # app
+TEMPLATE = app
 VERSION  = 0.5.0
 
 SOURCES  = \
@@ -69,7 +69,7 @@ LIBS     =  -ldl \
     ../../carla-rtmempool/carla_rtmempool.a
 
 DEFINES  = QTCREATOR_TEST
-DEFINES += DEBUG # NDEBUG
+DEFINES += DEBUG NDEBUG
 DEFINES += CARLA_ENGINE_JACK
 DEFINES += CARLA_ENGINE_RTAUDIO HAVE_GETTIMEOFDAY __LINUX_ALSA__ __LINUX_ALSASEQ__ __LINUX_PULSE__ __RTAUDIO_DEBUG__ __RTMIDI_DEBUG__
 DEFINES += CARLA_ENGINE_LV2

c++/carla-backend/vst.cpp

@@ -1694,7 +1694,7 @@ public:
     {
 #ifdef DEBUG
         if (opcode != audioMasterGetTime)
-            qDebug("VstPlugin::hostCallback(%p, %s, %i, " P_INTPTR ", %p, %f)", effect, vstMasterOpcode2str(opcode), index, value, ptr, opt);
+            qDebug("VstPlugin::hostCallback(%p, %02i:%s, %i, " P_INTPTR ", %p, %f)", effect, opcode, vstMasterOpcode2str(opcode), index, value, ptr, opt);
 #endif
 
 #if 0
@@ -2097,7 +2097,7 @@ public:
 
         default:
 #ifdef DEBUG
-            qDebug("VstPlugin::hostCallback(%p, %s, %i, " P_INTPTR ", %p, %f)", effect, vstMasterOpcode2str(opcode), index, value, ptr, opt);
+            qDebug("VstPlugin::hostCallback(%p, %02i:%s, %i, " P_INTPTR ", %p, %f)", effect, opcode, vstMasterOpcode2str(opcode), index, value, ptr, opt);
 #endif
             break;
         }

c++/carla-bridge/carla_bridge.doxygen

@@ -241,7 +241,7 @@ EXPAND_ONLY_PREDEF     = NO
 SEARCH_INCLUDES        = YES
 INCLUDE_PATH           =
 INCLUDE_FILE_PATTERNS  =
-PREDEFINED             = BUILD_BRIDGE BUILD_BRIDGE_PLUGIN BUILD_BRIDGE_UI BRIDGE_LV2 BRIDGE_VST LV2_GTK2 BRIDGE_LV2_GTK3 BRIDGE_LV2_QT4 BRIDGE_LV2_X11 BRIDGE_VST_HWND BRIDGE_VST_X11
+PREDEFINED             = DOXYGEN BUILD_BRIDGE BUILD_BRIDGE_PLUGIN BUILD_BRIDGE_UI BRIDGE_LV2 BRIDGE_VST LV2_GTK2 BRIDGE_LV2_GTK3 BRIDGE_LV2_QT4 BRIDGE_LV2_X11 BRIDGE_VST_HWND BRIDGE_VST_X11
 EXPAND_AS_DEFINED      =
 SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------

c++/carla-includes/carla_includes.h

@@ -103,7 +103,7 @@
 #endif
 
 #ifdef NDEBUG
-#  define CARLA_ASSERT(cond) ((!(cond)) ? carla_assert(#cond,__FILE__,__LINE__) : pass())
+#  define CARLA_ASSERT(cond) ((!(cond)) ? carla_assert(#cond, __FILE__, __LINE__) : pass())
 #else
 #  define CARLA_ASSERT Q_ASSERT
 #endif
@@ -131,9 +131,9 @@ void carla_assert(const char* const assertion, const char* const file, const int
 }
 
 static inline
-const char* bool2str(const bool yesno)
+const char* bool2str(const bool yesNo)
 {
-    return yesno ? "true" : "false";
+    return yesNo ? "true" : "false";
 }
 
 static inline

c++/carla-includes/carla_linuxsampler.h

@@ -50,10 +50,10 @@ static const float VOLUME_MIN = 0.0f;        // -inf dB
 class AudioOutputDevicePlugin : public AudioOutputDevice
 {
 public:
-    AudioOutputDevicePlugin(CarlaBackend::CarlaEngine* const engine, CarlaBackend::CarlaPlugin* const plugin) :
-        AudioOutputDevice(std::map<String, DeviceCreationParameter*>()),
-        m_engine(engine),
-        m_plugin(plugin)
+    AudioOutputDevicePlugin(CarlaBackend::CarlaEngine* const engine, CarlaBackend::CarlaPlugin* const plugin)
+        : AudioOutputDevice(std::map<String, DeviceCreationParameter*>()),
+          m_engine(engine),
+          m_plugin(plugin)
     {
     }
 
@@ -108,8 +108,8 @@ private:
 class MidiInputDevicePlugin : public MidiInputDevice
 {
 public:
-    MidiInputDevicePlugin(Sampler* const sampler) :
-        MidiInputDevice(std::map<String, DeviceCreationParameter*>(), sampler)
+    MidiInputDevicePlugin(Sampler* const sampler)
+        : MidiInputDevice(std::map<String, DeviceCreationParameter*>(), sampler)
     {
     }
 
@@ -147,8 +147,8 @@ public:
     class MidiInputPortPlugin : public MidiInputPort
     {
     protected:
-        MidiInputPortPlugin(MidiInputDevicePlugin* const device, const int portNumber) :
-            MidiInputPort(device, portNumber)
+        MidiInputPortPlugin(MidiInputDevicePlugin* const device, const int portNumber)
+            : MidiInputPort(device, portNumber)
         {
         }
         friend class MidiInputDevicePlugin;

c++/carla-includes/carla_lv2.h

@@ -95,112 +95,113 @@ struct LV2_Atom_Worker {
 class Lv2WorldClass : public Lilv::World
 {
 public:
-    Lv2WorldClass() : Lilv::World(),
-        port                (new_uri(LV2_CORE__port)),
-        symbol              (new_uri(LV2_CORE__symbol)),
-        designation         (new_uri(LV2_CORE__designation)),
-        freewheeling        (new_uri(LV2_CORE__freeWheeling)),
-        reportsLatency      (new_uri(LV2_CORE__reportsLatency)),
-
-        class_allpass       (new_uri(LV2_CORE__AllpassPlugin)),
-        class_amplifier     (new_uri(LV2_CORE__AmplifierPlugin)),
-        class_analyzer      (new_uri(LV2_CORE__AnalyserPlugin)),
-        class_bandpass      (new_uri(LV2_CORE__BandpassPlugin)),
-        class_chorus        (new_uri(LV2_CORE__ChorusPlugin)),
-        class_comb          (new_uri(LV2_CORE__CombPlugin)),
-        class_compressor    (new_uri(LV2_CORE__CompressorPlugin)),
-        class_constant      (new_uri(LV2_CORE__ConstantPlugin)),
-        class_converter     (new_uri(LV2_CORE__ConverterPlugin)),
-        class_delay         (new_uri(LV2_CORE__DelayPlugin)),
-        class_distortion    (new_uri(LV2_CORE__DistortionPlugin)),
-        class_dynamics      (new_uri(LV2_CORE__DynamicsPlugin)),
-        class_eq            (new_uri(LV2_CORE__EQPlugin)),
-        class_expander      (new_uri(LV2_CORE__ExpanderPlugin)),
-        class_filter        (new_uri(LV2_CORE__FilterPlugin)),
-        class_flanger       (new_uri(LV2_CORE__FlangerPlugin)),
-        class_function      (new_uri(LV2_CORE__FunctionPlugin)),
-        class_gate          (new_uri(LV2_CORE__GatePlugin)),
-        class_generator     (new_uri(LV2_CORE__GeneratorPlugin)),
-        class_highpass      (new_uri(LV2_CORE__HighpassPlugin)),
-        class_instrument    (new_uri(LV2_CORE__InstrumentPlugin)),
-        class_limiter       (new_uri(LV2_CORE__LimiterPlugin)),
-        class_lowpass       (new_uri(LV2_CORE__LowpassPlugin)),
-        class_mixer         (new_uri(LV2_CORE__MixerPlugin)),
-        class_modulator     (new_uri(LV2_CORE__ModulatorPlugin)),
-        class_multi_eq      (new_uri(LV2_CORE__MultiEQPlugin)),
-        class_oscillator    (new_uri(LV2_CORE__OscillatorPlugin)),
-        class_para_eq       (new_uri(LV2_CORE__ParaEQPlugin)),
-        class_phaser        (new_uri(LV2_CORE__PhaserPlugin)),
-        class_pitch         (new_uri(LV2_CORE__PitchPlugin)),
-        class_reverb        (new_uri(LV2_CORE__ReverbPlugin)),
-        class_simulator     (new_uri(LV2_CORE__SimulatorPlugin)),
-        class_spatial       (new_uri(LV2_CORE__SpatialPlugin)),
-        class_spectral      (new_uri(LV2_CORE__SpectralPlugin)),
-        class_utility       (new_uri(LV2_CORE__UtilityPlugin)),
-        class_waveshaper    (new_uri(LV2_CORE__WaveshaperPlugin)),
-
-        port_input          (new_uri(LV2_CORE__InputPort)),
-        port_output         (new_uri(LV2_CORE__OutputPort)),
-        port_control        (new_uri(LV2_CORE__ControlPort)),
-        port_audio          (new_uri(LV2_CORE__AudioPort)),
-        port_cv             (new_uri(LV2_CORE__CVPort)),
-        port_atom           (new_uri(LV2_ATOM__AtomPort)),
-        port_event          (new_uri(LV2_EVENT__EventPort)),
-        port_midi_ll        (new_uri(LV2_MIDI_LL__MidiPort)),
-
-        pprop_optional      (new_uri(LV2_CORE__connectionOptional)),
-        pprop_enumeration   (new_uri(LV2_CORE__enumeration)),
-        pprop_integer       (new_uri(LV2_CORE__integer)),
-        pprop_sample_rate   (new_uri(LV2_CORE__sampleRate)),
-        pprop_toggled       (new_uri(LV2_CORE__toggled)),
-        pprop_artifacts     (new_uri(LV2_PORT_PROPS__causesArtifacts)),
-        pprop_continuous_cv (new_uri(LV2_PORT_PROPS__continuousCV)),
-        pprop_discrete_cv   (new_uri(LV2_PORT_PROPS__discreteCV)),
-        pprop_expensive     (new_uri(LV2_PORT_PROPS__expensive)),
-        pprop_strict_bounds (new_uri(LV2_PORT_PROPS__hasStrictBounds)),
-        pprop_logarithmic   (new_uri(LV2_PORT_PROPS__logarithmic)),
-        pprop_not_automatic (new_uri(LV2_PORT_PROPS__notAutomatic)),
-        pprop_not_on_gui    (new_uri(LV2_PORT_PROPS__notOnGUI)),
-        pprop_trigger       (new_uri(LV2_PORT_PROPS__trigger)),
-
-        unit_unit           (new_uri(LV2_UNITS__unit)),
-        unit_name           (new_uri(LV2_UNITS__name)),
-        unit_render         (new_uri(LV2_UNITS__render)),
-        unit_symbol         (new_uri(LV2_UNITS__symbol)),
-
-        ui_gtk2             (new_uri(LV2_UI__GtkUI)),
-        ui_gtk3             (new_uri(LV2_UI__Gtk3UI)),
-        ui_qt4              (new_uri(LV2_UI__Qt4UI)),
-        ui_cocoa            (new_uri(LV2_UI__CocoaUI)),
-        ui_windows          (new_uri(LV2_UI__WindowsUI)),
-        ui_x11              (new_uri(LV2_UI__X11UI)),
-        ui_external         (new_uri(LV2_EXTERNAL_UI__Widget)),
-        ui_external_old     (new_uri(LV2_EXTERNAL_UI_DEPRECATED_URI)),
-
-        preset_preset       (new_uri(LV2_PRESETS__Preset)),
-        preset_value        (new_uri(LV2_PRESETS__value)),
-
-        state_state         (new_uri(LV2_STATE__state)),
-
-        value_default       (new_uri(LV2_CORE__default)),
-        value_minimum       (new_uri(LV2_CORE__minimum)),
-        value_maximum       (new_uri(LV2_CORE__maximum)),
-
-        atom_sequence       (new_uri(LV2_ATOM__Sequence)),
-        atom_buffer_type    (new_uri(LV2_ATOM__bufferType)),
-        atom_supports       (new_uri(LV2_ATOM__supports)),
-
-        midi_event          (new_uri(LV2_MIDI__MidiEvent)),
-        patch_message       (new_uri(LV2_PATCH__Message)),
-
-        mm_default_control  (new_uri(NS_llmm "defaultMidiController")),
-        mm_control_type     (new_uri(NS_llmm "controllerType")),
-        mm_control_number   (new_uri(NS_llmm "controllerNumber")),
-
-        dct_replaces        (new_uri(NS_dct "replaces")),
-        doap_license        (new_uri(NS_doap "license")),
-        rdf_type            (new_uri(NS_rdf "type")),
-        rdfs_label          (new_uri(NS_rdfs "label"))
+    Lv2WorldClass()
+        : Lilv::World(),
+          port                (new_uri(LV2_CORE__port)),
+          symbol              (new_uri(LV2_CORE__symbol)),
+          designation         (new_uri(LV2_CORE__designation)),
+          freewheeling        (new_uri(LV2_CORE__freeWheeling)),
+          reportsLatency      (new_uri(LV2_CORE__reportsLatency)),
+
+          class_allpass       (new_uri(LV2_CORE__AllpassPlugin)),
+          class_amplifier     (new_uri(LV2_CORE__AmplifierPlugin)),
+          class_analyzer      (new_uri(LV2_CORE__AnalyserPlugin)),
+          class_bandpass      (new_uri(LV2_CORE__BandpassPlugin)),
+          class_chorus        (new_uri(LV2_CORE__ChorusPlugin)),
+          class_comb          (new_uri(LV2_CORE__CombPlugin)),
+          class_compressor    (new_uri(LV2_CORE__CompressorPlugin)),
+          class_constant      (new_uri(LV2_CORE__ConstantPlugin)),
+          class_converter     (new_uri(LV2_CORE__ConverterPlugin)),
+          class_delay         (new_uri(LV2_CORE__DelayPlugin)),
+          class_distortion    (new_uri(LV2_CORE__DistortionPlugin)),
+          class_dynamics      (new_uri(LV2_CORE__DynamicsPlugin)),
+          class_eq            (new_uri(LV2_CORE__EQPlugin)),
+          class_expander      (new_uri(LV2_CORE__ExpanderPlugin)),
+          class_filter        (new_uri(LV2_CORE__FilterPlugin)),
+          class_flanger       (new_uri(LV2_CORE__FlangerPlugin)),
+          class_function      (new_uri(LV2_CORE__FunctionPlugin)),
+          class_gate          (new_uri(LV2_CORE__GatePlugin)),
+          class_generator     (new_uri(LV2_CORE__GeneratorPlugin)),
+          class_highpass      (new_uri(LV2_CORE__HighpassPlugin)),
+          class_instrument    (new_uri(LV2_CORE__InstrumentPlugin)),
+          class_limiter       (new_uri(LV2_CORE__LimiterPlugin)),
+          class_lowpass       (new_uri(LV2_CORE__LowpassPlugin)),
+          class_mixer         (new_uri(LV2_CORE__MixerPlugin)),
+          class_modulator     (new_uri(LV2_CORE__ModulatorPlugin)),
+          class_multi_eq      (new_uri(LV2_CORE__MultiEQPlugin)),
+          class_oscillator    (new_uri(LV2_CORE__OscillatorPlugin)),
+          class_para_eq       (new_uri(LV2_CORE__ParaEQPlugin)),
+          class_phaser        (new_uri(LV2_CORE__PhaserPlugin)),
+          class_pitch         (new_uri(LV2_CORE__PitchPlugin)),
+          class_reverb        (new_uri(LV2_CORE__ReverbPlugin)),
+          class_simulator     (new_uri(LV2_CORE__SimulatorPlugin)),
+          class_spatial       (new_uri(LV2_CORE__SpatialPlugin)),
+          class_spectral      (new_uri(LV2_CORE__SpectralPlugin)),
+          class_utility       (new_uri(LV2_CORE__UtilityPlugin)),
+          class_waveshaper    (new_uri(LV2_CORE__WaveshaperPlugin)),
+
+          port_input          (new_uri(LV2_CORE__InputPort)),
+          port_output         (new_uri(LV2_CORE__OutputPort)),
+          port_control        (new_uri(LV2_CORE__ControlPort)),
+          port_audio          (new_uri(LV2_CORE__AudioPort)),
+          port_cv             (new_uri(LV2_CORE__CVPort)),
+          port_atom           (new_uri(LV2_ATOM__AtomPort)),
+          port_event          (new_uri(LV2_EVENT__EventPort)),
+          port_midi_ll        (new_uri(LV2_MIDI_LL__MidiPort)),
+
+          pprop_optional      (new_uri(LV2_CORE__connectionOptional)),
+          pprop_enumeration   (new_uri(LV2_CORE__enumeration)),
+          pprop_integer       (new_uri(LV2_CORE__integer)),
+          pprop_sample_rate   (new_uri(LV2_CORE__sampleRate)),
+          pprop_toggled       (new_uri(LV2_CORE__toggled)),
+          pprop_artifacts     (new_uri(LV2_PORT_PROPS__causesArtifacts)),
+          pprop_continuous_cv (new_uri(LV2_PORT_PROPS__continuousCV)),
+          pprop_discrete_cv   (new_uri(LV2_PORT_PROPS__discreteCV)),
+          pprop_expensive     (new_uri(LV2_PORT_PROPS__expensive)),
+          pprop_strict_bounds (new_uri(LV2_PORT_PROPS__hasStrictBounds)),
+          pprop_logarithmic   (new_uri(LV2_PORT_PROPS__logarithmic)),
+          pprop_not_automatic (new_uri(LV2_PORT_PROPS__notAutomatic)),
+          pprop_not_on_gui    (new_uri(LV2_PORT_PROPS__notOnGUI)),
+          pprop_trigger       (new_uri(LV2_PORT_PROPS__trigger)),
+
+          unit_unit           (new_uri(LV2_UNITS__unit)),
+          unit_name           (new_uri(LV2_UNITS__name)),
+          unit_render         (new_uri(LV2_UNITS__render)),
+          unit_symbol         (new_uri(LV2_UNITS__symbol)),
+
+          ui_gtk2             (new_uri(LV2_UI__GtkUI)),
+          ui_gtk3             (new_uri(LV2_UI__Gtk3UI)),
+          ui_qt4              (new_uri(LV2_UI__Qt4UI)),
+          ui_cocoa            (new_uri(LV2_UI__CocoaUI)),
+          ui_windows          (new_uri(LV2_UI__WindowsUI)),
+          ui_x11              (new_uri(LV2_UI__X11UI)),
+          ui_external         (new_uri(LV2_EXTERNAL_UI__Widget)),
+          ui_external_old     (new_uri(LV2_EXTERNAL_UI_DEPRECATED_URI)),
+
+          preset_preset       (new_uri(LV2_PRESETS__Preset)),
+          preset_value        (new_uri(LV2_PRESETS__value)),
+
+          state_state         (new_uri(LV2_STATE__state)),
+
+          value_default       (new_uri(LV2_CORE__default)),
+          value_minimum       (new_uri(LV2_CORE__minimum)),
+          value_maximum       (new_uri(LV2_CORE__maximum)),
+
+          atom_sequence       (new_uri(LV2_ATOM__Sequence)),
+          atom_buffer_type    (new_uri(LV2_ATOM__bufferType)),
+          atom_supports       (new_uri(LV2_ATOM__supports)),
+
+          midi_event          (new_uri(LV2_MIDI__MidiEvent)),
+          patch_message       (new_uri(LV2_PATCH__Message)),
+
+          mm_default_control  (new_uri(NS_llmm "defaultMidiController")),
+          mm_control_type     (new_uri(NS_llmm "controllerType")),
+          mm_control_number   (new_uri(NS_llmm "controllerNumber")),
+
+          dct_replaces        (new_uri(NS_dct "replaces")),
+          doap_license        (new_uri(NS_doap "license")),
+          rdf_type            (new_uri(NS_rdf "type")),
+          rdfs_label          (new_uri(NS_rdfs "label"))
     {
         needInit = true;
     }

src/carla_backend.py

@@ -665,13 +665,6 @@ if is64bit:
 else:
     c_uintptr = c_uint32
 
-class midi_program_t(Structure):
-    _fields_ = [
-        ("bank", c_uint32),
-        ("program", c_uint32),
-        ("label", c_char_p)
-    ]
-
 class ParameterData(Structure):
     _fields_ = [
         ("type", c_enum),
@@ -692,6 +685,13 @@ class ParameterRanges(Structure):
         ("stepLarge", c_double)
     ]
 
+class MidiProgramData(Structure):
+    _fields_ = [
+        ("bank", c_uint32),
+        ("program", c_uint32),
+        ("label", c_char_p)
+    ]
+
 class CustomData(Structure):
     _fields_ = [
         ("type", c_enum),
@@ -820,7 +820,7 @@ class Host(object):
         self.lib.get_parameter_ranges.restype = POINTER(ParameterRanges)
 
         self.lib.get_midi_program_data.argtypes = [c_ushort, c_uint32]
-        self.lib.get_midi_program_data.restype = POINTER(midi_program_t)
+        self.lib.get_midi_program_data.restype = POINTER(MidiProgramData)
 
         self.lib.get_custom_data.argtypes = [c_ushort, c_uint32]
         self.lib.get_custom_data.restype = POINTER(CustomData)

src/carla_control.py

@@ -33,7 +33,7 @@ lo_targetName = ""
 Carla.isControl = True
 
 # Python Object dicts compatible to carla-backend struct ctypes
-midi_program_t = {
+MidiProgramData = {
     'bank': 0,
     'program': 0,
     'label': None
@@ -195,7 +195,7 @@ class Host(object):
 
         # add placeholders
         for x in range(count):
-            self.pluginInfo[index].midiProgramDataS.append(midi_program_t)
+            self.pluginInfo[index].midiProgramDataS.append(MidiProgramData)
 
     def _set_parameterInfoS(self, index, paramIndex, data):
         if paramIndex < self.pluginInfo[index].parameterCountInfo['total']:
@@ -819,7 +819,7 @@ class CarlaControlW(QMainWindow, ui_carla_control.Ui_CarlaControlW):
 
     @pyqtSlot(int, int, int, int, str)
     def slot_handleSetMidiProgramData(self, pluginId, index, bank, program, name):
-        data = deepcopy(midi_program_t)
+        data = deepcopy(MidiProgramData)
         data['bank']    = bank
         data['program'] = program
         data['label']   = name