X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fprocessor.h;h=fe23d6fddedabbd3735311efa6cd4de9965c60df;hb=355183f1abea75d8fab0926cd7e7130796574cb0;hp=a97dcc4cf752fbfa55ea34bd9c326f6e2cc1e316;hpb=f41149628955fc8145bef6db0c110b71664c0a3a;p=ardour.git

diff --git a/libs/ardour/ardour/processor.h b/libs/ardour/ardour/processor.h
index a97dcc4cf7..fe23d6fdde 100644
--- a/libs/ardour/ardour/processor.h
+++ b/libs/ardour/ardour/processor.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000 Paul Davis 
+    Copyright (C) 2009-2010 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
@@ -24,16 +24,14 @@
 #include <string>
 #include <exception>
 
-#include "pbd/statefuldestructible.h" 
-
-#include <sigc++/signal.h>
+#include "pbd/statefuldestructible.h"
 
 #include "ardour/ardour.h"
-#include "ardour/automatable_controls.h"
 #include "ardour/buffer_set.h"
 #include "ardour/latent.h"
 #include "ardour/session_object.h"
 #include "ardour/types.h"
+#include "ardour/automatable.h"
 
 class XMLNode;
 
@@ -42,40 +40,42 @@ namespace ARDOUR {
 class Session;
 class Route;
 
-/* A mixer strip element - plugin, send, meter, etc.
- */
-class Processor : public SessionObject, public AutomatableControls, public Latent
+/** 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(Session&, const XMLNode& node);
+	Processor (const Processor& other);
 
 	virtual ~Processor() { }
 
 	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; }
 
 	bool get_next_ab_is_active () const { return _next_ab_is_active; }
 	void set_next_ab_is_active (bool yn) { _next_ab_is_active = yn; }
-	
-	virtual nframes_t signal_latency() const { return 0; }
-	
-	virtual void transport_stopped (sframes_t frame) {}
-	
-	virtual void set_block_size (nframes_t nframes) {}
-
-	virtual void run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes) {}
-	virtual void silence (nframes_t nframes) {}
-	
+
+	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; }
+
+	/** @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 bool configure_io (ChanCount in, ChanCount out);
 
 	/* Derived classes should override these, or processor appears as an in-place pass-through */
@@ -84,6 +84,16 @@ class Processor : public SessionObject, public AutomatableControls, public Laten
 	virtual ChanCount input_streams () const { return _configured_input; }
 	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
 	   smoothly.
@@ -91,24 +101,28 @@ class Processor : public SessionObject, public AutomatableControls, public Laten
 
 	virtual XMLNode& state (bool full);
 	XMLNode& get_state (void);
-	int set_state (const XMLNode&);
-	
-	void *get_gui () const { return _gui; }
-	void  set_gui (void *p) { _gui = p; }
+	int set_state (const XMLNode&, int version);
+
+	void set_pre_fader (bool);
 
-	static sigc::signal<void,Processor*> ProcessorCreated;
+	PBD::Signal0<void>                     ActiveChanged;
+	PBD::Signal2<void,ChanCount,ChanCount> ConfigurationChanged;
 
-	sigc::signal<void>                     ActiveChanged;
-	sigc::signal<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;
 	bool      _configured;
 	ChanCount _configured_input;
 	ChanCount _configured_output;
-	void*     _gui;  /* generic, we don't know or care what this is */
+	bool      _display_to_user;
+	bool      _pre_fader; ///< true if this processor is currently placed before the Amp, otherwise false
+	void*     _ui_pointer;
 };
 
 } // namespace ARDOUR