Fix broken whitespace. I'd apologize for the compile times if it was my fault :D

[ardour.git] / libs / ardour / source.cc

diff --git a/libs/ardour/source.cc b/libs/ardour/source.cc
index 45cd1fb904e0536a99f791e9087b66c12af33424..35e1417fb4c14e92abc5a8af7e7b31199b1653c3 100644 (file)
--- a/libs/ardour/source.cc
+++ b/libs/ardour/source.cc
@@ -36,7 +36,7 @@
 #include "pbd/pthread_utils.h"
 #include "pbd/enumwriter.h"
 
-#include "ardour/playlist.h"
+#include "ardour/debug.h"
 #include "ardour/session.h"
 #include "ardour/source.h"
 #include "ardour/transient_detector.h"
@@ -45,16 +45,18 @@
 
 using namespace std;
 using namespace ARDOUR;
+using namespace PBD;
 
 Source::Source (Session& s, DataType type, const string& name, Flag flags)
        : SessionObject(s, name)
        , _type(type)
        , _flags(flags)
        , _timeline_position(0)
+        , _use_count (0)
+       , _level (0)
 {
        _analysed = false;
        _timestamp = 0;
-       _in_use = 0;
        fix_writable_flags ();
 }
 
@@ -63,12 +65,13 @@ Source::Source (Session& s, const XMLNode& node)
        , _type(DataType::AUDIO)
        , _flags (Flag (Writable|CanRename))
        , _timeline_position(0)
+        , _use_count (0)
+       , _level (0)
 {
        _timestamp = 0;
        _analysed = false;
-       _in_use = 0;
 
-       if (set_state (node) || _type == DataType::NIL) {
+       if (set_state (node, Stateful::loading_state_version) || _type == DataType::NIL) {
                throw failed_constructor();
        }
 
@@ -77,10 +80,9 @@ Source::Source (Session& s, const XMLNode& node)
 
 Source::~Source ()
 {
-       notify_callbacks ();
+       DEBUG_TRACE (DEBUG::Destruction, string_compose ("Source %1 destructor %2\n", _name, this));
 }
 
-
 void
 Source::fix_writable_flags ()
 {
@@ -110,7 +112,7 @@ Source::get_state ()
 }
 
 int
-Source::set_state (const XMLNode& node)
+Source::set_state (const XMLNode& node, int version)
 {
        const XMLProperty* prop;
 
@@ -146,53 +148,17 @@ Source::set_state (const XMLNode& node)
                _flags = Flag (_flags | Destructive);
        }
 
-       return 0;
-}
-
-void
-Source::add_playlist (boost::shared_ptr<Playlist> pl)
-{
-       std::pair<PlaylistMap::iterator,bool> res;
-       std::pair<boost::shared_ptr<Playlist>, uint32_t> newpair (pl, 1);
-       Glib::Mutex::Lock lm (_playlist_lock);
-
-       res = _playlists.insert (newpair);
-
-       if (!res.second) {
-               /* it already existed, bump count */
-               res.first->second++;
-       }
-
-       pl->GoingAway.connect (bind (
-                       mem_fun (*this, &Source::remove_playlist),
-                       boost::weak_ptr<Playlist> (pl)));
-}
-
-void
-Source::remove_playlist (boost::weak_ptr<Playlist> wpl)
-{
-       boost::shared_ptr<Playlist> pl (wpl.lock());
-
-       if (!pl) {
-               return;
-       }
-
-       PlaylistMap::iterator x;
-       Glib::Mutex::Lock lm (_playlist_lock);
-
-       if ((x = _playlists.find (pl)) != _playlists.end()) {
-               if (x->second > 1) {
-                       x->second--;
-               } else {
-                       _playlists.erase (x);
+       if (version < 3000) {
+               /* a source with an XML node must necessarily already exist,
+                  and therefore cannot be removable/writable etc. etc.; 2.X
+                  sometimes marks sources as removable which shouldn't be.
+               */
+               if (!(_flags & Destructive)) {
+                       _flags = Flag (_flags & ~(Writable|Removable|RemovableIfEmpty|RemoveAtDestroy|CanRename));
                }
        }
-}
 
-uint32_t
-Source::used () const
-{
-       return _playlists.size();
+       return 0;
 }
 
 bool
@@ -234,7 +200,7 @@ Source::load_transients (const string& path)
                file >> val;
 
                if (!file.fail()) {
-                       nframes64_t frame = (nframes64_t) floor (val * _session.frame_rate());
+                       framepos_t frame = (framepos_t) floor (val * _session.frame_rate());
                        transients.push_back (frame);
                }
        }
@@ -286,10 +252,12 @@ Source::check_for_analysis_data_on_disk ()
 void
 Source::mark_for_remove ()
 {
-       // This operation is not allowed for sources for destructive tracks or embedded files.
-       // Fortunately mark_for_remove() is never called for embedded files. This function
-       // must be fixed if that ever happens.
-       if (_flags & Destructive) {
+       // This operation is not allowed for sources for destructive tracks or out-of-session files.
+
+       /* XXX need a way to detect _within_session() condition here - move it from FileSource?
+        */
+
+       if ((_flags & Destructive)) {
                return;
        }
 
@@ -316,3 +284,30 @@ Source::set_allow_remove_if_empty (bool yn)
        }
 }
 
+void
+Source::inc_use_count ()
+{
+        g_atomic_int_inc (&_use_count);
+}
+
+void
+Source::dec_use_count ()
+{
+#ifndef NDEBUG
+        gint oldval = g_atomic_int_exchange_and_add (&_use_count, -1);
+        if (oldval <= 0) {
+                cerr << "Bad use dec for " << name() << endl;
+                abort ();
+        }
+        assert (oldval > 0);
+#else
+        g_atomic_int_exchange_and_add (&_use_count, -1);
+#endif
+}
+
+bool
+Source::writable () const
+{
+        return (_flags & Writable) && _session.writable();
+}
+