Use a map of region names to speed up
[ardour.git] / libs / ardour / region_factory.cc
index fba60fe0a01b5f356e36de2ec16c5856d03c3982..ddc0451523c356884442f3c8405d14d4e36aac23 100644 (file)
 #include <inttypes.h>
 
 #include "pbd/error.h"
-#include "pbd/boost_debug.h"
 
-#include "ardour/session.h"
-
-#include "ardour/region_factory.h"
-#include "ardour/region.h"
 #include "ardour/audioregion.h"
 #include "ardour/audiosource.h"
-#include "ardour/midi_source.h"
 #include "ardour/midi_region.h"
-#include "ardour/utils.h"
+#include "ardour/midi_source.h"
+#include "ardour/region.h"
+#include "ardour/region_factory.h"
+#include "ardour/session.h"
 
 #include "i18n.h"
 
@@ -41,9 +38,10 @@ using namespace std;
 PBD::Signal1<void,boost::shared_ptr<Region> > RegionFactory::CheckNewRegion;
 Glib::StaticMutex                             RegionFactory::region_map_lock;
 RegionFactory::RegionMap                      RegionFactory::region_map;
-PBD::ScopedConnectionList                     RegionFactory::region_list_connections;
-Glib::StaticMutex                             RegionFactory::region_name_map_lock;
-std::map<std::string, uint32_t>               RegionFactory::region_name_map;
+PBD::ScopedConnectionList*                    RegionFactory::region_list_connections = 0;
+Glib::StaticMutex                             RegionFactory::region_name_maps_mutex;
+std::map<std::string, uint32_t>               RegionFactory::region_name_number_map;
+std::map<std::string, PBD::ID>                RegionFactory::region_name_map;
 RegionFactory::CompoundAssociations           RegionFactory::_compound_associations;
 
 boost::shared_ptr<Region>
@@ -73,10 +71,15 @@ RegionFactory::create (boost::shared_ptr<const Region> region, bool announce)
 
        if (ret) {
                ret->set_name (new_region_name(ret->name()));
-               map_add (ret);
+               ret->set_position (region->position());
+               
+               if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
+                       ret->set_position_lock_style (MusicTime);
+               }
 
                /* pure copy constructor - no property list */
                if (announce) {
+                       map_add (ret);
                        CheckNewRegion (ret);
                }
        }
@@ -111,9 +114,13 @@ RegionFactory::create (boost::shared_ptr<Region> region, const PropertyList& pli
 
        if (ret) {
                ret->apply_changes (plist);
-               map_add (ret);
 
+               if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
+                       ret->set_position_lock_style (MusicTime);
+               }
+               
                if (announce) {
+                       map_add (ret);
                        CheckNewRegion (ret);
                }
        }
@@ -148,9 +155,13 @@ RegionFactory::create (boost::shared_ptr<Region> region, frameoffset_t offset, c
 
        if (ret) {
                ret->apply_changes (plist);
-               map_add (ret);
+
+               if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
+                       ret->set_position_lock_style (MusicTime);
+               }
 
                if (announce) {
+                       map_add (ret);
                        CheckNewRegion (ret);
                }
        }
@@ -185,9 +196,13 @@ RegionFactory::create (boost::shared_ptr<Region> region, const SourceList& srcs,
 
        if (ret) {
                ret->apply_changes (plist);
-               map_add (ret);
+
+               if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
+                       ret->set_position_lock_style (MusicTime);
+               }
 
                if (announce) {
+                       map_add (ret);
                        CheckNewRegion (ret);
                }
        }
@@ -225,9 +240,13 @@ RegionFactory::create (const SourceList& srcs, const PropertyList& plist, bool a
 
        if (ret) {
                ret->apply_changes (plist);
-               map_add (ret);
 
+               if (ret->session().config.get_glue_new_regions_to_bars_and_beats ()) {
+                       ret->set_position_lock_style (MusicTime);
+               }
+               
                if (announce) {
+                       map_add (ret);
                        CheckNewRegion (ret);
                }
        }
@@ -268,6 +287,11 @@ RegionFactory::create (SourceList& srcs, const XMLNode& node)
                        ret.reset ();
                } else {
                        map_add (ret);
+
+                       /* Don't fiddle with position_lock_style here as the region
+                          description is coming from XML.
+                       */
+                       
                        CheckNewRegion (ret);
                }
        }
@@ -290,46 +314,33 @@ RegionFactory::map_add (boost::shared_ptr<Region> r)
                region_map.insert (p);
        }
 
-       r->DropReferences.connect_same_thread (region_list_connections, boost::bind (&RegionFactory::map_remove, r));
+       if (!region_list_connections) {
+               region_list_connections = new ScopedConnectionList;
+       }
 
-       r->PropertyChanged.connect_same_thread (
-               region_list_connections,
-               boost::bind (&RegionFactory::region_changed, _1, boost::weak_ptr<Region> (r))
-               );
+       r->DropReferences.connect_same_thread (*region_list_connections, boost::bind (&RegionFactory::map_remove, boost::weak_ptr<Region> (r)));
+       r->PropertyChanged.connect_same_thread (*region_list_connections, boost::bind (&RegionFactory::region_changed, _1, boost::weak_ptr<Region> (r)));
 
-       update_region_name_map (r);
+       add_to_region_name_maps (r);
 }
 
 void
-RegionFactory::map_remove (boost::shared_ptr<Region> r)
+RegionFactory::map_remove (boost::weak_ptr<Region> w)
 {
+       boost::shared_ptr<Region> r = w.lock ();
+       if (!r) {
+               return;
+       }
+       
        Glib::Mutex::Lock lm (region_map_lock);
        RegionMap::iterator i = region_map.find (r->id());
 
        if (i != region_map.end()) {
+               remove_from_region_name_map (i->second->name ());
                region_map.erase (i);
        }
 }
 
-void
-RegionFactory::map_remove_with_equivalents (boost::shared_ptr<Region> r)
-{
-       Glib::Mutex::Lock lm (region_map_lock);
-
-       for (RegionMap::iterator i = region_map.begin(); i != region_map.end(); ) {
-               RegionMap::iterator tmp = i;
-               ++tmp;
-
-               if (r->region_list_equivalent (i->second)) {
-                       region_map.erase (i);
-               } else if (r == i->second) {
-                       region_map.erase (i);
-               }
-
-               i = tmp;
-       }
-}
-
 boost::shared_ptr<Region>
 RegionFactory::region_by_id (const PBD::ID& id)
 {
@@ -367,12 +378,15 @@ RegionFactory::region_by_name (const std::string& name)
 void
 RegionFactory::clear_map ()
 {
-       region_list_connections.drop_connections ();
+       if (region_list_connections) {
+               region_list_connections->drop_connections ();
+       }
 
        {
                Glib::Mutex::Lock lm (region_map_lock);
                region_map.clear ();
                _compound_associations.clear ();
+               region_name_map.clear ();
        }
 }
 
@@ -407,8 +421,49 @@ RegionFactory::nregions ()
        return region_map.size ();
 }
 
+/** Add a region to the two region name maps */
+void
+RegionFactory::add_to_region_name_maps (boost::shared_ptr<Region> region)
+{
+       update_region_name_number_map (region);
+
+       Glib::Mutex::Lock lm (region_name_maps_mutex);
+       region_name_map[region->name()] = region->id ();
+}
+
+/** Account for a region rename in the two region name maps */
+void
+RegionFactory::rename_in_region_name_maps (boost::shared_ptr<Region> region)
+{
+       update_region_name_number_map (region);
+
+       Glib::Mutex::Lock lm (region_name_maps_mutex);
+       
+       map<string, PBD::ID>::iterator i = region_name_map.begin();
+       while (i != region_name_map.end() && i->second != region->id ()) {
+               ++i;
+       }
+
+       /* Erase the entry for the old name and put in a new one */
+       if (i != region_name_map.end()) {
+               region_name_map.erase (i);
+               region_name_map[region->name()] = region->id ();
+       }
+}
+
+/** Remove a region's details from the region_name_map */
+void
+RegionFactory::remove_from_region_name_map (string n)
+{
+       map<string, PBD::ID>::iterator i = region_name_map.find (n);
+       if (i != region_name_map.end ()) {
+               region_name_map.erase (i);
+       }
+}
+
+/** Update a region's entry in the region_name_number_map */
 void
-RegionFactory::update_region_name_map (boost::shared_ptr<Region> region)
+RegionFactory::update_region_name_number_map (boost::shared_ptr<Region> region)
 {
        string::size_type const last_period = region->name().find_last_of ('.');
 
@@ -421,8 +476,8 @@ RegionFactory::update_region_name_map (boost::shared_ptr<Region> region)
                   which is just fine
                */
 
-               Glib::Mutex::Lock lm (region_name_map_lock);
-               region_name_map[base] = atoi (number.c_str ());
+               Glib::Mutex::Lock lm (region_name_maps_mutex);
+               region_name_number_map[base] = atoi (number.c_str ());
        }
 }
 
@@ -435,7 +490,7 @@ RegionFactory::region_changed (PropertyChange const & what_changed, boost::weak_
        }
 
        if (what_changed.contains (Properties::name)) {
-               update_region_name_map (r);
+               rename_in_region_name_maps (r);
        }
 }
 
@@ -471,15 +526,15 @@ RegionFactory::region_name (string& result, string base, bool newlevel)
                }
 
                {
-                       Glib::Mutex::Lock lm (region_name_map_lock);
+                       Glib::Mutex::Lock lm (region_name_maps_mutex);
 
                        map<string,uint32_t>::iterator x;
 
                        result = subbase;
 
-                       if ((x = region_name_map.find (subbase)) == region_name_map.end()) {
+                       if ((x = region_name_number_map.find (subbase)) == region_name_number_map.end()) {
                                result += ".1";
-                               region_name_map[subbase] = 1;
+                               region_name_number_map[subbase] = 1;
                        } else {
                                x->second++;
                                snprintf (buf, sizeof (buf), ".%d", x->second);
@@ -544,8 +599,6 @@ RegionFactory::new_region_name (string old)
 
        while (number < (UINT_MAX-1)) {
 
-               const RegionMap& regions (RegionFactory::regions());
-               RegionMap::const_iterator i;
                string sbuf;
 
                number++;
@@ -553,13 +606,7 @@ RegionFactory::new_region_name (string old)
                snprintf (buf, len, "%s%" PRIu32 "%s", old.substr (0, last_period + 1).c_str(), number, remainder.c_str());
                sbuf = buf;
 
-               for (i = regions.begin(); i != regions.end(); ++i) {
-                       if (i->second->name() == sbuf) {
-                               break;
-                       }
-               }
-
-               if (i == regions.end()) {
+               if (region_name_map.find (sbuf) == region_name_map.end ()) {
                        break;
                }
        }
@@ -589,10 +636,18 @@ RegionFactory::remove_regions_using_source (boost::shared_ptr<Source> src)
 {
        Glib::Mutex::Lock lm (region_map_lock);
 
-       for (RegionMap::iterator i = region_map.begin(); i != region_map.end(); ++i) {
+       RegionMap::iterator i = region_map.begin();
+       while (i != region_map.end()) {
+
+               RegionMap::iterator j = i;
+               ++j;
+               
                if (i->second->uses_source (src)) {
+                       remove_from_region_name_map (i->second->name ());
                        region_map.erase (i);
                 }
+
+               i = j;
        }
 }