Fix parameters and state in JACK export

dgl/src/Window.cpp

@@ -576,6 +576,7 @@ struct Window::PrivateData {
             if (widget->isVisible())
             {
                 const int ypos = widget->fInvertedY ? fView->height - widget->getHeight() - widget->getAbsoluteY() : widget->getAbsoluteY();
+                //const int ypos = fView->height - widget->getHeight() - widget->getAbsoluteY();
 
                 // reset color
                 glColor4f(1.0f, 1.0f, 1.0f, 1.0f);

distrho/src/DistrhoPluginJack.cpp

@@ -30,6 +30,10 @@
 
 START_NAMESPACE_DISTRHO
 
+#if ! DISTRHO_PLUGIN_WANT_STATE
+static const setStateFunc setStateCallback = nullptr;
+#endif
+
 // -----------------------------------------------------------------------
 
 class PluginJack
@@ -37,7 +41,7 @@ class PluginJack
 public:
     PluginJack(jack_client_t* const client)
         : fPlugin(),
-          fUI(this, 0, nullptr, nullptr, nullptr, nullptr, setSizeCallback, fPlugin.getInstancePointer()),
+          fUI(this, 0, nullptr, setParameterValueCallback, setStateCallback, nullptr, setSizeCallback, fPlugin.getInstancePointer()),
           fClient(client)
     {
         char strBuf[0xff+1];
@@ -171,6 +175,11 @@ protected:
             else
                 fTimePos.bbt.valid = false;
         }
+        else
+        {
+            fTimePos.bbt.valid = false;
+            fTimePos.frame = 0;
+        }
 
         fPlugin.setTimePos(fTimePos);
 #endif
@@ -217,6 +226,20 @@ protected:
         fUI.quit();
     }
 
+    // -------------------------------------------------------------------
+
+    void setParameterValue(const uint32_t index, const float value)
+    {
+        fPlugin.setParameterValue(index, value);
+    }
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    void setState(const char* const key, const char* const value)
+    {
+        fPlugin.setState(key, value);
+    }
+#endif
+
     void setSize(const uint width, const uint height)
     {
         fUI.setSize(width, height);
@@ -271,6 +294,18 @@ private:
         uiPtr->jackShutdown();
     }
 
+    static void setParameterValueCallback(void* ptr, uint32_t index, float value)
+    {
+        uiPtr->setParameterValue(index, value);
+    }
+
+#if DISTRHO_PLUGIN_WANT_STATE
+    static void setStateCallback(void* ptr, const char* key, const char* value)
+    {
+        uiPtr->setState(key, value);
+    }
+#endif
+
     static void setSizeCallback(void* ptr, uint width, uint height)
     {
         uiPtr->setSize(width, height);