partially revert some of the recent work on tempo to reflect new understanding of...

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

diff --git a/libs/ardour/ardour/processor.h b/libs/ardour/ardour/processor.h
index 9038088cf01edb5eb3732f703255496848ce6d3a..fe23d6fddedabbd3735311efa6cd4de9965c60df 100644 (file)
--- a/libs/ardour/ardour/processor.h
+++ b/libs/ardour/ardour/processor.h
@@ -40,14 +40,14 @@ namespace ARDOUR {
 class Session;
 class Route;
 
-/* A mixer strip element - plugin, send, meter, etc.
- */
+/** A mixer strip element - plugin, send, meter, etc */
 class Processor : public SessionObject, public Automatable, public Latent
 {
   public:
        static const std::string state_node_name;
 
        Processor(Session&, const std::string& name);
+       Processor (const Processor& other);
 
        virtual ~Processor() { }
 
@@ -64,17 +64,17 @@ class Processor : public SessionObject, public Automatable, public Latent
        virtual framecnt_t signal_latency() const { return 0; }
 
        virtual int set_block_size (pframes_t /*nframes*/) { return 0; }
-        virtual bool requires_fixed_sized_buffers() const { return false; }
+       virtual bool requires_fixed_sized_buffers() const { return false; }
 
-       /** @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.
-        */  
+       /** @param result_required true if, on return from this method, @a bufs is required to contain valid data;
+        *  if false, the method need not bother writing to @a bufs if it doesn't want to.
+        */
        virtual void run (BufferSet& /*bufs*/, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t /*nframes*/, bool /*result_required*/) {}
        virtual void silence (framecnt_t /*nframes*/) {}
 
        virtual void activate ()   { _pending_active = true; ActiveChanged(); }
        virtual void deactivate () { _pending_active = false; ActiveChanged(); }
-        virtual void flush() {}
+       virtual void flush() {}
 
        virtual bool configure_io (ChanCount in, ChanCount out);
 
@@ -85,6 +85,14 @@ class Processor : public SessionObject, public Automatable, public Latent
        virtual ChanCount output_streams() const { return _configured_output; }
 
        virtual void realtime_handle_transport_stopped () {}
+       virtual void realtime_locate () {}
+
+       /* most processors won't care about this, but plugins that
+          receive MIDI or similar data from an input source that
+          may suddenly go "quiet" because of monitoring changes
+          need to know about it.
+       */
+       virtual void monitoring_changed() {}
 
        /* note: derived classes should implement state(), NOT get_state(), to allow
           us to merge C++ inheritance and XML lack-of-inheritance reasonably
@@ -94,15 +102,18 @@ class Processor : public SessionObject, public Automatable, public Latent
        virtual XMLNode& state (bool full);
        XMLNode& get_state (void);
        int set_state (const XMLNode&, int version);
-       
+
        void set_pre_fader (bool);
 
        PBD::Signal0<void>                     ActiveChanged;
        PBD::Signal2<void,ChanCount,ChanCount> ConfigurationChanged;
 
+       void  set_ui (void*);
+       void* get_ui () const { return _ui_pointer; }
+
 protected:
        virtual int set_state_2X (const XMLNode&, int version);
-       
+
        int       _pending_active;
        bool      _active;
        bool      _next_ab_is_active;
@@ -110,7 +121,8 @@ protected:
        ChanCount _configured_input;
        ChanCount _configured_output;
        bool      _display_to_user;
-       bool      _pre_fader;
+       bool      _pre_fader; ///< true if this processor is currently placed before the Amp, otherwise false
+       void*     _ui_pointer;
 };
 
 } // namespace ARDOUR