Fix LV2 Preset path for window

diff --git a/libs/ardour/lv2_plugin.cc b/libs/ardour/lv2_plugin.cc
index 9456ba3d0c6c18186d885326bf21cb133d7885a1..e556886c34d1f57b51661b9cd3debdedac771b26 100644 (file)
--- a/libs/ardour/lv2_plugin.cc
+++ b/libs/ardour/lv2_plugin.cc
@@ -1503,9 +1503,29 @@ LV2Plugin::do_save_preset(string name)
        const string prefix    = legalize_for_uri(lilv_node_as_string(plug_name));
        const string base_name = legalize_for_uri(name);
        const string file_name = base_name + ".ttl";
+#ifdef PLATFORM_WINDOWS
+       /* http://lv2plug.in/pages/filesystem-hierarchy-standard.html */
+       std::string appdata = PBD::get_win_special_folder_path (CSIDL_APPDATA);
+       if (appdata.empty ()) {
+               // TODO consider a fallback location
+               return "";
+       }
+       const string bundle = Glib::build_filename (
+                       appdata, "LV2",
+                       Glib::build_filename(prefix + "_" + base_name + ".lv2"));
+#else
+       /* while macOS/OSX user-specific path is
+        *
+        *   $HOME/Library/Audio/Plug-Ins/LV2/
+        *
+        * liblilv's LV2 search path on all unices does include ~/.lv2/
+        * Ardour has been saving lv2 presets to ~/.lv2 for along time,
+        * so just keep them there.
+        */
        const string bundle    = Glib::build_filename(
                Glib::get_home_dir(),
                Glib::build_filename(".lv2", prefix + "_" + base_name + ".lv2"));
+#endif
 
 #ifdef HAVE_LILV_0_21_3
        /* delete reference to old preset (if any) */