X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fsource.h;h=eb204715a1fefb7a349a4bd1e3a11cbd082fadc6;hb=37b90c2a9eecbb97e4bbe16634272849be6b4e9f;hp=b91d8f129c8c0eaa48a85f6d4ff47104ff83d31b;hpb=aae367b63c9b619db1e40f27dc334c6987219481;p=ardour.git

diff --git a/libs/ardour/ardour/source.h b/libs/ardour/ardour/source.h
index b91d8f129c..eb204715a1 100644
--- a/libs/ardour/ardour/source.h
+++ b/libs/ardour/ardour/source.h
@@ -23,19 +23,20 @@
 #include <string>
 #include <set>
 
+#include <glibmm/threads.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"
 
 namespace ARDOUR {
 
 class Session;
 
-class Source : public SessionObject
+class LIBARDOUR_API Source : public SessionObject
 {
   public:
 	enum Flag {
@@ -46,9 +47,13 @@ class Source : public SessionObject
 		RemovableIfEmpty = 0x10,
 		RemoveAtDestroy = 0x20,
 		NoPeakFile = 0x40,
-		Destructive = 0x80
+		Destructive = 0x80,
+		Empty = 0x100, /* used for MIDI only */
+		RF64_RIFF = 0x200,
 	};
 
+	typedef Glib::Threads::Mutex::Lock Lock;
+
 	Source (Session&, DataType type, const std::string& name, Flag flags=Flag(0));
 	Source (Session&, const XMLNode&);
 
@@ -59,17 +64,16 @@ class Source : public SessionObject
 	time_t timestamp() const { return _timestamp; }
 	void stamp (time_t when) { _timestamp = when; }
 
-	virtual sframes_t length (sframes_t pos) const = 0;
-	virtual void      update_length (sframes_t pos, sframes_t cnt) = 0;
-
-	virtual const Glib::ustring& path() const = 0;
+	virtual bool       empty () const = 0;
+	virtual framecnt_t length (framepos_t pos) const = 0;
+	virtual void       update_length (framecnt_t cnt) = 0;
 
-	virtual nframes64_t natural_position() const { return 0; }
+	virtual framepos_t natural_position() const { return 0; }
 
 	void mark_for_remove();
 
-	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() {}
 
@@ -77,12 +81,11 @@ class Source : public SessionObject
 	int set_state (const XMLNode&, int version);
 
 	bool         destructive() const       { return (_flags & Destructive); }
-	bool         writable () const         { return (_flags & Writable); }
+	bool         writable () const;
 	virtual bool set_destructive (bool /*yn*/) { return false; }
 	virtual bool length_mutable() const    { return false; }
 
 	static PBD::Signal1<void,Source*>             SourceCreated;
-	PBD::Signal1<void,boost::shared_ptr<Source> > Switched;
 
 	bool has_been_analysed() const;
 	virtual bool can_be_analysed() const { return false; }
@@ -95,23 +98,34 @@ class Source : public SessionObject
 	std::string get_transients_path() const;
 	int load_transients (const std::string&);
 
-	sframes_t    timeline_position() const { return _timeline_position; }
-	virtual void set_timeline_position (sframes_t pos);
+	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::Mutex& mutex()       { return _lock; }
+        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;
-	sframes_t           _timeline_position;
+	framepos_t          _timeline_position;
 	bool                _analysed;
-	mutable Glib::Mutex _lock;
-	mutable Glib::Mutex _analysis_lock;
-	Glib::Mutex         _playlist_lock;
+        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:
 	void fix_writable_flags ();