fix crash when copy'ing latent plugins
[ardour.git] / libs / ardour / processor.cc
index b48b0aebb0d6eeb797dcb5023a8a94611b39648e..60a23376b6c4c5d15bcd2002dc74899aa349f836 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000 Paul Davis 
+    Copyright (C) 2000 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
 
 */
 
-#include <string>
+#ifdef WAF_BUILD
+#include "libardour-config.h"
+#endif
 
-#include <sigc++/bind.h>
+#include <string>
 
-#include "pbd/failed_constructor.h"
-#include "pbd/enumwriter.h"
 #include "pbd/xml++.h"
 
+#include "ardour/automatable.h"
+#include "ardour/chan_count.h"
 #include "ardour/processor.h"
-#include "ardour/plugin.h"
-#include "ardour/port.h"
-#include "ardour/route.h"
-#include "ardour/ladspa_plugin.h"
-#include "ardour/buffer_set.h"
-#include "ardour/send.h"
-#include "ardour/port_insert.h"
-#include "ardour/plugin_insert.h"
-
-#ifdef VST_SUPPORT
-#include "ardour/vst_plugin.h"
+#include "ardour/types.h"
+
+#ifdef WINDOWS_VST_SUPPORT
+#include "ardour/windows_vst_plugin.h"
 #endif
 
-#ifdef HAVE_AUDIOUNITS
+#ifdef AUDIOUNIT_SUPPORT
 #include "ardour/audio_unit.h"
 #endif
 
 #include "ardour/session.h"
 #include "ardour/types.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-sigc::signal<void,Processor*> Processor::ProcessorCreated;
+namespace ARDOUR { class Session; }
 
 // Always saved as Processor, but may be IOProcessor or Send in legacy sessions
 const string Processor::state_node_name = "Processor";
 
 Processor::Processor(Session& session, const string& name)
        : SessionObject(session, name)
-       , AutomatableControls(session)
+       , Automatable (session)
+       , _pending_active(false)
        , _active(false)
        , _next_ab_is_active(false)
        , _configured(false)
-       , _gui(0)
+       , _display_to_user (true)
+       , _pre_fader (false)
+       , _ui_pointer (0)
+       , _window_proxy (0)
+       , _pinmgr_proxy (0)
+       , _owner (0)
 {
 }
 
-void
-Processor::set_sort_key (uint32_t key)
+Processor::Processor (const Processor& other)
+       : Evoral::ControlSet (other)
+       , SessionObject (other.session(), other.name())
+       , Automatable (other.session())
+       , Latent (other)
+       , _pending_active(other._pending_active)
+       , _active(other._active)
+       , _next_ab_is_active(false)
+       , _configured(false)
+       , _display_to_user (true)
+       , _pre_fader (false)
+       , _ui_pointer (0)
+       , _window_proxy (0)
+       , _pinmgr_proxy (0)
+       , _owner (0)
 {
-       _sort_key = key;
 }
-       
+
 XMLNode&
 Processor::get_state (void)
 {
        return state (true);
 }
 
-/* NODE STRUCTURE 
-   
+/* NODE STRUCTURE
+
     <Automation [optionally with visible="...." ]>
        <parameter-N>
          <AutomationList id=N>
@@ -98,104 +111,116 @@ XMLNode&
 Processor::state (bool full_state)
 {
        XMLNode* node = new XMLNode (state_node_name);
-       stringstream sstr;
-       
-       // FIXME: This conflicts with "id" used by plugin for name in legacy sessions (ugh).
-       // Do we need to serialize this?
-       /*
        char buf[64];
+
        id().print (buf, sizeof (buf));
        node->add_property("id", buf);
-       */
-
        node->add_property("name", _name);
-       node->add_property("active", active() ? "yes" : "no");  
+       node->add_property("active", active() ? "yes" : "no");
 
        if (_extra_xml){
                node->add_child_copy (*_extra_xml);
        }
-       
-       if (full_state) {
-               XMLNode& automation = Automatable::get_automation_state(); 
-               if (!automation.children().empty()
-                               || !automation.properties().empty()
-                               || !_visible_controls.empty()) {
-
-                       for (set<Evoral::Parameter>::iterator x = _visible_controls.begin();
-                                       x != _visible_controls.end(); ++x) {
-                               if (x != _visible_controls.begin()) {
-                                       sstr << ' ';
-                               }
-                               sstr << *x;
-                       }
 
-                       automation.add_property ("visible", sstr.str());
+       if (full_state) {
+               XMLNode& automation = Automatable::get_automation_xml_state();
+               if (!automation.children().empty() || !automation.properties().empty()) {
                        node->add_child_nocopy (automation);
+               } else {
+                       delete &automation;
                }
        }
 
+       snprintf (buf, sizeof (buf), "%" PRId64, _user_latency);
+       node->add_property("user-latency", buf);
+
        return *node;
 }
 
 int
-Processor::set_state (const XMLNode& node)
+Processor::set_state_2X (const XMLNode & node, int /*version*/)
 {
-       const XMLProperty *prop;
-       const XMLProperty *legacy_active = 0;
-       const XMLProperty *legacy_placement = 0;
+       XMLProperty const * prop;
+
+       XMLNodeList children = node.children ();
+
+       for (XMLNodeIterator i = children.begin(); i != children.end(); ++i) {
+
+               if ((*i)->name() == X_("IO")) {
+
+                       if ((prop = (*i)->property ("name")) != 0) {
+                               set_name (prop->value ());
+                       }
+
+                       set_id (**i);
+
+                       //note:  in A2, active state was stored in the Redirect node, not the child IO node
+                       /*
+                        * if ((prop = (*i)->property ("active")) != 0) {
+                               bool const a = string_is_affirmative (prop->value ());
+                               if (_active != a) {
+                                       if (a) {
+                                               activate ();
+                                       } else {
+                                               deactivate ();
+                                       }
+                               }
+                       }*/
 
-       // may not exist for legacy sessions
-       if ((prop = node.property ("name")) != 0) {
-               set_name(prop->value());
+               }
+       }
+
+       return 0;
+}
+
+int
+Processor::set_state (const XMLNode& node, int version)
+{
+       if (version < 3000) {
+               return set_state_2X (node, version);
+       }
+
+       XMLProperty const * prop;
+       XMLProperty const * legacy_active = 0;
+       bool leave_name_alone = (node.property ("ignore-name") != 0);
+
+       if (!leave_name_alone) {
+               // may not exist for legacy 3.0 sessions
+               if ((prop = node.property ("name")) != 0) {
+                       /* don't let derived classes have a crack at set_name,
+                          as some (like Send) will screw with the one we suggest.
+                       */
+                       Processor::set_name (prop->value());
+               }
+
+               set_id (node);
        }
 
        XMLNodeList nlist = node.children();
        XMLNodeIterator niter;
 
+       Stateful::save_extra_xml (node);
+
        for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
 
                if ((*niter)->name() == X_("Automation")) {
 
-                       XMLProperty *prop;
-                       
+                       XMLProperty const * prop;
+
                        if ((prop = (*niter)->property ("path")) != 0) {
                                old_set_automation_state (*(*niter));
                        } else {
-                               set_automation_state (*(*niter), Evoral::Parameter(PluginAutomation));
-                       }
-
-                       if ((prop = (*niter)->property ("visible")) != 0) {
-                               uint32_t what;
-                               stringstream sstr;
-
-                               _visible_controls.clear ();
-                               
-                               sstr << prop->value();
-                               while (1) {
-                                       sstr >> what;
-                                       if (sstr.fail()) {
-                                               break;
-                                       }
-                                       // FIXME: other automation types?
-                                       mark_automation_visible (Evoral::Parameter(PluginAutomation, 0, what), true);
-                               }
+                               set_automation_xml_state (*(*niter), Evoral::Parameter(PluginAutomation));
                        }
 
-               } else if ((*niter)->name() == "Extra") {
-                       _extra_xml = new XMLNode (*(*niter));
                } else if ((*niter)->name() == "Redirect") {
                        if ( !(legacy_active = (*niter)->property("active"))) {
                                error << string_compose(_("No %1 property flag in element %2"), "active", (*niter)->name()) << endl;
                        }
-                       if ( !(legacy_placement = (*niter)->property("placement"))) {
-                               error << string_compose(_("No %1 property flag in element %2"), "placement", (*niter)->name()) << endl;
-                       }
                }
        }
 
        if ((prop = node.property ("active")) == 0) {
-               warning << _("XML node describing a processor is missing the `active' field,"
-                          "trying legacy active flag from child node") << endmsg;
                if (legacy_active) {
                        prop = legacy_active;
                } else {
@@ -204,26 +229,66 @@ Processor::set_state (const XMLNode& node)
                }
        }
 
-       if (_active != (prop->value() == "yes")) {
-               _active = !_active;
-               ActiveChanged (); /* EMIT_SIGNAL */
-       }       
+       bool const a = string_is_affirmative (prop->value ()) && !_session.get_bypass_all_loaded_plugins();
+       if (_active != a) {
+               if (a) {
+                       activate ();
+               } else {
+                       deactivate ();
+               }
+       }
+
+       if ((prop = node.property ("user-latency")) != 0) {
+               _user_latency = atoi (prop->value ());
+       }
 
        return 0;
 }
 
+/** @pre Caller must hold process lock */
 bool
 Processor::configure_io (ChanCount in, ChanCount out)
 {
        /* This class assumes 1:1 input:output.static output stream count.
           Derived classes must override and set _configured_output appropriately
-          if this is not the case */
+          if this is not the case
+       */
 
-       _configured_input = in; 
-       _configured_output = out; 
+       _configured_input = in;
+       _configured_output = out;
        _configured = true;
 
-       ConfigurationChanged.emit (in, out);
+       ConfigurationChanged (in, out); /* EMIT SIGNAL */
 
        return true;
 }
+
+void
+Processor::set_display_to_user (bool yn)
+{
+       _display_to_user = yn;
+}
+
+void
+Processor::set_pre_fader (bool p)
+{
+       _pre_fader = p;
+}
+
+void
+Processor::set_ui (void* p)
+{
+       _ui_pointer = p;
+}
+
+void
+Processor::set_owner (SessionObject* o)
+{
+       _owner = o;
+}
+
+SessionObject*
+Processor::owner() const
+{
+       return _owner;
+}