Generalize no-plugin-state from AudioUnits to all plugins

Replace AU_STATE_SUPPORT compile-time define with NO_PLUGIN_STATE and make it prevent plugin state setting, preset loading, preset saving and plugin state saving. Blocks on these actions exist partially in the backend and partially in the GUI (this latter class are not absolute, and should OSC or MIDI be able to drive Plugin::save_preset() the block could be circumvented). Set NO_PLUGIN_STATE if --freebie is used at waf-configure time

1 files changed, 26 insertions, 1 deletions

diff --git a/libs/ardour/plugin.cc b/libs/ardour/plugin.cc
index 57198475d7..e76353e8d5 100644
--- a/libs/ardour/plugin.cc
+++ b/libs/ardour/plugin.cc
@@ -68,6 +68,11 @@ using namespace PBD;
 
 namespace ARDOUR { class AudioEngine; }
 
+#ifdef NO_PLUGIN_STATE
+static bool seen_get_state_message = false;
+static bool seen_set_state_message = false;
+#endif
+
 bool
 PluginInfo::is_instrument () const
 {
@@ -299,18 +304,28 @@ Plugin::resolve_midi ()
 	_have_pending_stop_events = true;
 }
 
+
 vector<Plugin::PresetRecord>
 Plugin::get_presets ()
 {
+	vector<PresetRecord> p;
+
+#ifndef NO_PLUGIN_STATE
 	if (!_have_presets) {
 		find_presets ();
 		_have_presets = true;
 	}
 
-	vector<PresetRecord> p;
 	for (map<string, PresetRecord>::const_iterator i = _presets.begin(); i != _presets.end(); ++i) {
 		p.push_back (i->second);
 	}
+#else
+	if (!seen_set_state_message) {
+		info << string_compose (_("Plugin presets are not supported in this build of %1. Consider paying for a full version"),
+					PROGRAM_NAME)
+		     << endmsg;
+	}
+#endif
 
 	return p;
 }
@@ -376,7 +391,17 @@ Plugin::get_state ()
 	root->add_property (X_("last-preset-label"), _last_preset.label);
 	root->add_property (X_("parameter-changed-since-last-preset"), _parameter_changed_since_last_preset ? X_("yes") : X_("no"));
 
+#ifndef NO_PLUGIN_STATE	
 	add_state (root);
+#else
+	if (!seen_get_state_message) {
+		info << string_compose (_("Saving AudioUnit settings is not supported in this build of %1. Consider paying for a newer version"),
+					PROGRAM_NAME)
+		     << endmsg;
+		seen_get_state_message = true;
+	}
+#endif
+
 	return *root;
 }