fully implement and deploy explicit x-thread signal connection syntax (testing comes...

[ardour.git] / libs / ardour / ardour / processor.h

diff --git a/libs/ardour/ardour/processor.h b/libs/ardour/ardour/processor.h
index 473bb97130fe7332d3ccb86aa143d8f98748b125..2dd78c66f495d76d652550aa8326ba463ce79c51 100644 (file)
--- a/libs/ardour/ardour/processor.h
+++ b/libs/ardour/ardour/processor.h
@@ -26,7 +26,6 @@
 
 #include "pbd/statefuldestructible.h"
 
-#include <sigc++/signal.h>
 
 #include "ardour/ardour.h"
 #include "ardour/automatable_controls.h"
@@ -56,8 +55,8 @@ class Processor : public SessionObject, public AutomatableControls, public Laten
 
        virtual std::string display_name() const { return SessionObject::name(); }
 
-       virtual bool visible() const { return true; }
-       virtual void set_visible (bool) {}
+       virtual bool display_to_user() const { return _display_to_user; }
+       virtual void set_display_to_user (bool);
 
        bool active () const { return _pending_active; }
 
@@ -70,7 +69,10 @@ class Processor : public SessionObject, public AutomatableControls, public Laten
 
        virtual void set_block_size (nframes_t /*nframes*/) {}
 
-       virtual void run (BufferSet& /*bufs*/, sframes_t /*start_frame*/, sframes_t /*end_frame*/, nframes_t /*nframes*/) {}
+       /** @param result_required true if, on return from this method, bufs is required to contain valid data;
+        *  if false, the method need not bother writing to bufs if it doesn't want to.
+        */  
+       virtual void run (BufferSet& /*bufs*/, sframes_t /*start_frame*/, sframes_t /*end_frame*/, nframes_t /*nframes*/, bool /*result_required*/) {}
        virtual void silence (nframes_t /*nframes*/) {}
 
        virtual void activate ()   { _pending_active = true; ActiveChanged(); }
@@ -96,10 +98,10 @@ class Processor : public SessionObject, public AutomatableControls, public Laten
        void *get_gui () const { return _gui; }
        void  set_gui (void *p) { _gui = p; }
 
-       static sigc::signal<void,Processor*> ProcessorCreated;
+       static PBD::Signal1<void,Processor*> ProcessorCreated;
 
-       sigc::signal<void>                     ActiveChanged;
-       sigc::signal<void,ChanCount,ChanCount> ConfigurationChanged;
+       PBD::Signal0<void>                     ActiveChanged;
+       PBD::Signal2<void,ChanCount,ChanCount> ConfigurationChanged;
 
 protected:
        int       _pending_active;
@@ -109,6 +111,7 @@ protected:
        ChanCount _configured_input;
        ChanCount _configured_output;
        void*     _gui;  /* generic, we don't know or care what this is */
+       bool        _display_to_user;
 
 private:
        int set_state_2X (const XMLNode&, int version);