Search for the group host when using plugin groups

src/plugin/plugin-bridge.cpp

@@ -50,9 +50,10 @@ PluginBridge& get_bridge_instance(const AEffect& plugin) {
 }
 
 PluginBridge::PluginBridge(audioMasterCallback host_callback)
-    : vst_plugin_path(find_vst_plugin()),
+    : config(Configuration::load_for(get_this_file_location())),
+      vst_plugin_path(find_vst_plugin()),
       vst_plugin_arch(find_vst_architecture(vst_plugin_path)),
-      vst_host_path(find_vst_host(vst_plugin_arch)),
+      vst_host_path(find_vst_host(vst_plugin_arch, config.group.has_value())),
       // All the fields should be zero initialized because
       // `Vst2PluginInstance::vstAudioMasterCallback` from Bitwig's plugin
       // bridge will crash otherwise
@@ -68,7 +69,6 @@ PluginBridge::PluginBridge(audioMasterCallback host_callback)
       host_callback_function(host_callback),
       logger(Logger::create_from_environment(
           create_logger_prefix(socket_endpoint.path()))),
-      config(Configuration::load_for(get_this_file_location())),
       wine_version(get_wine_version()),
       wine_stdout(io_context),
       wine_stderr(io_context) {

src/plugin/plugin-bridge.h

@@ -74,6 +74,14 @@ class PluginBridge {
     float get_parameter(AEffect* plugin, int index);
     void set_parameter(AEffect* plugin, int index, float value);
 
+    /**
+     * The configuration for this instance of yabridge. Set based on the values
+     * from a `yabridge.toml`, if it exists.
+     *
+     * @see Configuration::load_for
+     */
+    Configuration config;
+
     /**
      * The path to the .dll being loaded in the Wine VST host.
      */
@@ -198,14 +206,6 @@ class PluginBridge {
      */
     Logger logger;
 
-    /**
-     * The configuration for this instance of yabridge. Set based on the values
-     * from a `yabridge.toml`, if it exists.
-     *
-     * @see Configuration::load_for
-     */
-    Configuration config;
-
     /**
      * The version of Wine currently in use. Used in the debug output on plugin
      * startup.

src/plugin/utils.cpp

@@ -111,11 +111,12 @@ PluginArchitecture find_vst_architecture(fs::path plugin_path) {
     throw std::runtime_error(error_msg.str());
 }
 
-fs::path find_vst_host(PluginArchitecture plugin_arch) {
+fs::path find_vst_host(PluginArchitecture plugin_arch, bool use_plugin_groups) {
-    // TODO: Take plugin group settings into account
+    auto host_name = use_plugin_groups ? yabridge_group_host_name
-    auto host_name = yabridge_individual_host_name;
+                                       : yabridge_individual_host_name;
     if (plugin_arch == PluginArchitecture::vst_32) {
-        host_name = yabridge_individual_host_name_32bit;
+        host_name = use_plugin_groups ? yabridge_group_host_name_32bit
+                                      : yabridge_individual_host_name_32bit;
     }
 
     fs::path host_path =

src/plugin/utils.h

@@ -80,11 +80,14 @@ PluginArchitecture find_vst_architecture(boost::filesystem::path);
  *
  * @param plugin_arch The architecture of the plugin, either 64-bit or 32-bit.
  *   Used to determine which host application to use, if available.
+ * @param use_plugin_groups Whether the plugin is using plugin groups and we
+ *   should be looking for the group host instead of the individual plugin host.
  *
  * @return The a path to the VST host, if found.
  * @throw std::runtime_error If the Wine VST host could not be found.
  */
-boost::filesystem::path find_vst_host(PluginArchitecture plugin_arch);
+boost::filesystem::path find_vst_host(PluginArchitecture plugin_arch,
+                                      bool use_plugin_groups);
 
 /**
  * Find the VST plugin .dll file that corresponds to this copy of