Final details for scanning etc vst3 linux stuff

Closes #1094

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

source/backend/CarlaStandalone.cpp

@@ -322,6 +322,9 @@ bool carla_engine_init(CarlaHostHandle handle, const char* driverName, const cha
 
 #ifdef USING_JUCE
     juce::initialiseJuce_GUI();
+#if !(defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))
+    juce::MessageManager::getInstance()->setCurrentThreadAsMessageThread();
+#endif
 #endif
 
     CarlaHostStandalone& shandle((CarlaHostStandalone&)*handle);

source/backend/engine/CarlaEngine.cpp

@@ -1199,7 +1199,7 @@ bool CarlaEngine::loadFile(const char* const filename)
         return addPlugin(getBinaryTypeFromFile(filename), PLUGIN_VST2, filename, nullptr, nullptr, 0, nullptr);
 #endif
 
-#if defined(USING_JUCE) && (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))
+#ifdef USING_JUCE
     if (extension == "vst3")
         return addPlugin(getBinaryTypeFromFile(filename), PLUGIN_VST3, filename, nullptr, nullptr, 0, nullptr);
 #endif

source/backend/utils/Information.cpp

@@ -65,13 +65,16 @@ const char* carla_get_complete_license_text()
         "<li>LADSPA plugin support</li>"
         "<li>DSSI plugin support</li>"
         "<li>LV2 plugin support</li>"
-#if defined(USING_JUCE) && (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))
-        "<li>VST2/3 plugin support (using Juce)</li>"
+#if defined(USING_JUCE) && JUCE_PLUGINHOST_VST
+        "<li>VST2 plugin support (using JUCE)</li>"
 #else
         "<li>VST2 plugin support (using VeSTige header by Javier Serrano Polo)</li>"
 #endif
-#if defined(USING_JUCE) && defined(CARLA_OS_MAC)
-        "<li>AU plugin support (using Juce)</li>"
+#if defined(USING_JUCE) && JUCE_PLUGINHOST_VST3
+        "<li>VST3 plugin support (using JUCE)</li>"
+#endif
+#if defined(USING_JUCE) && JUCE_PLUGINHOST_AU
+        "<li>AU plugin support (using JUCE)</li>"
 #endif
 
         // Sample kit libraries
@@ -199,9 +202,7 @@ const char* const* carla_get_supported_features()
 #endif
 #ifdef USING_JUCE
         "juce",
-# if defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)
         "vst3",
-# endif
 # if defined(CARLA_OS_MAC)
         "au",
 # endif

source/frontend/carla_database.py

@@ -91,7 +91,7 @@ def findVST3Binaries(binPath):
     binaries = []
 
     for root, dirs, files in os.walk(binPath):
-        for name in tuple(name for name in files if name.lower().endswith(".vst3")):
+        for name in tuple(name for name in (files+dirs) if name.lower().endswith(".vst3")):
             binaries.append(os.path.join(root, name))
 
     return binaries
@@ -472,20 +472,18 @@ class SearchPluginsThread(QThread):
         # Increase count by the number of externally discoverable plugin types
         if self.fCheckNative:
             self.fCurCount += pluginCount
-            # MacOS and Windows are the only VST3 supported OSes
-            if self.fCheckVST3 and not (MACOS or WINDOWS):
+            # Linux, MacOS and Windows are the only VST3 supported OSes
+            if self.fCheckVST3 and not (LINUX or MACOS or WINDOWS):
                 self.fCurCount -= 1
 
         if self.fCheckPosix32:
             self.fCurCount += pluginCount
-            # MacOS is the only VST3 supported posix OS
-            if self.fCheckVST3 and not MACOS:
+            if self.fCheckVST3 and not (LINUX or MACOS):
                 self.fCurCount -= 1
 
         if self.fCheckPosix64:
             self.fCurCount += pluginCount
-            # MacOS is the only VST3 supported posix OS
-            if self.fCheckVST3 and not MACOS:
+            if self.fCheckVST3 and not (LINUX or MACOS):
                 self.fCurCount -= 1
 
         if self.fCheckWin32:
@@ -660,7 +658,7 @@ class SearchPluginsThread(QThread):
             if not self.fContinueChecking: return
 
         if self.fCheckVST3:
-            if self.fCheckNative and (MACOS or WINDOWS):
+            if self.fCheckNative and (LINUX or MACOS or WINDOWS):
                 plugins = self._checkVST3(OS, self.fToolNative)
                 settingsDB.setValue("Plugins/VST3_native", plugins)
                 if not self.fContinueChecking: return
@@ -1104,7 +1102,7 @@ class PluginRefreshW(QDialog):
                 self.ui.ch_au.setEnabled(False)
                 self.ui.ch_au.setVisible(False)
 
-                if not (hasWin32 or hasWin64):
+                if not (LINUX or hasWin32 or hasWin64):
                     self.ui.ch_vst3.setEnabled(False)
                     self.ui.ch_vst3.setVisible(False)