Send initial state of internal params to carla-plugin

source/backend/engine/CarlaEngineNative.cpp

@@ -792,6 +792,14 @@ protected:
 
         const uint pluginId(plugin->getId());
 
+        for (int32_t i=PARAMETER_ACTIVE; i>PARAMETER_MAX; --i)
+        {
+            std::sprintf(fTmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);
+            fUiServer.writeMsg(fTmpBuf);
+            std::sprintf(fTmpBuf, "%f\n", plugin->getInternalParameterValue(i));
+            fUiServer.writeMsg(fTmpBuf);
+        }
+
         uint32_t ins, outs, count;
         plugin->getParameterCountInfo(ins, outs);
         count = plugin->getParameterCount();

source/carla_host.py

@@ -671,7 +671,6 @@ class HostWindow(QMainWindow):
 
             self.projectLoadingFinished()
 
-        # just in case
         self.host.remove_all_plugins()
         self.removeAllPlugins()
 

source/modules/native-plugins/resources/carla-plugin

@@ -144,7 +144,10 @@ class CarlaMiniW(ExternalUI, HostWindow):
             elif msg.startswith("PARAMVAL_"):
                 pluginId, paramId = [int(i) for i in msg.replace("PARAMVAL_", "").split(":")]
                 paramValue = float(self.readlineblock())
-                self.host._set_parameterValue(pluginId, paramId, paramValue)
+                if paramId < 0:
+                    self.host._set_internalValue(pluginId, paramId, paramValue)
+                else:
+                    self.host._set_parameterValue(pluginId, paramId, paramValue)
 
             elif msg.startswith("ENGINE_CALLBACK_"):
                 action   = int(msg.replace("ENGINE_CALLBACK_", ""))