VST set defaults only once (initially)

Opening the generic plugin UI or re-opening the GUI will call
get_parameter_descriptor() again, and replace the defaults with
current values.

diff --git a/libs/ardour/vst_plugin.cc b/libs/ardour/vst_plugin.cc
index cf083e87f1f7c834698448e90d3369ce3a44d4db..8214d0be812a1c7f1a9d95371f205695db36058d 100644 (file)
--- a/libs/ardour/vst_plugin.cc
+++ b/libs/ardour/vst_plugin.cc
@@ -344,7 +344,9 @@ VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc)
        }
 
        desc.normal = get_parameter (which);
-       _parameter_defaults[which] = desc.normal;
+       if (_parameter_defaults.find (which) == _parameter_defaults.end ()) {
+               _parameter_defaults[which] = desc.normal;
+       }
 
        return 0;
 }