X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fsource.h;h=18de40771c9799bddec7668d6d8a7fe66ad908a5;hb=d854c5d93c71d3d607dd22970f1a06f078f350ea;hp=a2ee96bf63b3f3dd2b77dc638310e82f5aeb1a90;hpb=fbfb26b45c075da880861cf2303b851fe1acc0e8;p=ardour.git

diff --git a/libs/ardour/ardour/source.h b/libs/ardour/ardour/source.h
index a2ee96bf63..18de40771c 100644
--- a/libs/ardour/ardour/source.h
+++ b/libs/ardour/ardour/source.h
@@ -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
@@ -23,88 +23,111 @@
 #include <string>
 #include <set>
 
-#include <sigc++/signal.h>
+#include <glibmm/threads.h>
 
-#include <pbd/statefuldestructible.h> 
+#include <boost/utility.hpp>
+#include "pbd/statefuldestructible.h"
 
-#include <ardour/ardour.h>
-#include <ardour/session_object.h>
-#include <ardour/data_type.h>
-#include <ardour/readable.h>
+#include "ardour/ardour.h"
+#include "ardour/session_object.h"
+#include "ardour/data_type.h"
 
 namespace ARDOUR {
 
 class Session;
-class Playlist;
 
-class Source : public SessionObject, public ARDOUR::Readable
+class LIBARDOUR_API Source : public SessionObject
 {
   public:
-	Source (Session&, const std::string& name, DataType type);
+	enum Flag {
+		Writable = 0x1,
+		CanRename = 0x2,
+		Broadcast = 0x4,
+		Removable = 0x8,
+		RemovableIfEmpty = 0x10,
+		RemoveAtDestroy = 0x20,
+		NoPeakFile = 0x40,
+		Destructive = 0x80,
+		Empty = 0x100, /* used for MIDI only */
+	};
+
+	typedef Glib::Threads::Mutex::Lock Lock;
+
+	Source (Session&, DataType type, const std::string& name, Flag flags=Flag(0));
 	Source (Session&, const XMLNode&);
-	
+
 	virtual ~Source ();
-	
+
 	DataType type() { return _type; }
 
 	time_t timestamp() const { return _timestamp; }
 	void stamp (time_t when) { _timestamp = when; }
-	
-	nframes_t length() const { return _length; }
-	
-	virtual Glib::ustring path() const = 0;
 
-	virtual nframes_t natural_position() const { return 0; }
+	virtual bool       empty () const = 0;
+	virtual framecnt_t length (framepos_t pos) const = 0;
+	virtual void       update_length (framecnt_t cnt) = 0;
+
+	virtual framepos_t natural_position() const { return 0; }
+
+	void mark_for_remove();
 
-	virtual void mark_for_remove() = 0;
-	virtual void mark_streaming_write_started () {}
-	virtual void mark_streaming_write_completed () = 0;
+	virtual void mark_streaming_write_started (const Lock& lock) {}
+	virtual void mark_streaming_write_completed (const Lock& lock) = 0;
 
 	virtual void session_saved() {}
-	
+
 	XMLNode& get_state ();
-	int set_state (const XMLNode&);
-	
-	virtual bool destructive()    const { return false; }
-	virtual bool length_mutable() const { return false; }
-	
-	void use () { _in_use++; }
-	void disuse () { if (_in_use) { _in_use--; } }
-	
-	void add_playlist (boost::shared_ptr<ARDOUR::Playlist>);
-	void remove_playlist (boost::weak_ptr<ARDOUR::Playlist>);
-
-	uint32_t used() const;
-
-	static sigc::signal<void,Source*>             SourceCreated;
-	sigc::signal<void,boost::shared_ptr<Source> > Switched;
+	int set_state (const XMLNode&, int version);
+
+	bool         destructive() const       { return (_flags & Destructive); }
+	bool         writable () const;
+	virtual bool set_destructive (bool /*yn*/) { return false; }
+	virtual bool length_mutable() const    { return false; }
+
+	static PBD::Signal1<void,Source*>             SourceCreated;
 
 	bool has_been_analysed() const;
-	virtual bool can_be_analysed() const { return false; } 
+	virtual bool can_be_analysed() const { return false; }
 	virtual void set_been_analysed (bool yn);
 	virtual bool check_for_analysis_data_on_disk();
 
-	sigc::signal<void> AnalysisChanged;
-	
+	PBD::Signal0<void> AnalysisChanged;
+
 	AnalysisFeatureList transients;
 	std::string get_transients_path() const;
 	int load_transients (const std::string&);
-	
-	void update_length (nframes_t pos, nframes_t cnt);
+
+	framepos_t    timeline_position() const { return _timeline_position; }
+	virtual void set_timeline_position (framepos_t pos);
+
+	void set_allow_remove_if_empty (bool yn);
+
+        Glib::Threads::Mutex& mutex() { return _lock; }
+	Flag         flags() const { return _flags; }
+
+	virtual void inc_use_count ();
+	virtual void dec_use_count ();
+        int  use_count() const { return g_atomic_int_get (const_cast<gint*>(&_use_count)); }
+	bool used() const { return use_count() > 0; }
+	uint32_t level() const { return _level; }
+
+	std::string ancestor_name() { return _ancestor_name.empty() ? name() : _ancestor_name; }
+	void set_ancestor_name(const std::string& name) { _ancestor_name = name; }
 
   protected:
 	DataType            _type;
+	Flag                _flags;
 	time_t              _timestamp;
-	nframes_t           _length;
+	framepos_t          _timeline_position;
 	bool                _analysed;
-	mutable Glib::Mutex _analysis_lock;
-	Glib::Mutex         _playlist_lock;
-	
-	typedef std::map<boost::shared_ptr<ARDOUR::Playlist>, uint32_t > PlaylistMap;
-	PlaylistMap _playlists;
+        mutable Glib::Threads::Mutex _lock;
+        mutable Glib::Threads::Mutex _analysis_lock;
+	gint                _use_count; /* atomic */
+	uint32_t            _level; /* how deeply nested is this source w.r.t a disk file */
+	std::string         _ancestor_name;
 
   private:
-	uint32_t _in_use;
+	void fix_writable_flags ();
 };
 
 }