Patch from Julian Foad:

[flightgear.git] / src / Scenery / newcache.hxx

diff --git a/src/Scenery/newcache.hxx b/src/Scenery/newcache.hxx
index ed7486f572c19803e86ff78b760c105671ee796b..4a10884bd04cd800fcd7e0b6ab10582f21a2d6d7 100644 (file)
--- a/src/Scenery/newcache.hxx
+++ b/src/Scenery/newcache.hxx
@@ -49,15 +49,13 @@
 
 SG_USING_STD(map);
 
-
-typedef map < long, FGTileEntry * > tile_map;
-typedef tile_map::iterator tile_map_iterator;
-typedef tile_map::const_iterator const_tile_map_iterator;
-
-
 // A class to store and manage a pile of tiles
 class FGNewCache {
 
+    typedef map < long, FGTileEntry * > tile_map;
+    typedef tile_map::iterator tile_map_iterator;
+    typedef tile_map::const_iterator const_tile_map_iterator;
+
     // cache storage space
     tile_map tile_cache;
 
@@ -82,18 +80,22 @@ public:
     void init( void );
 
     // Check if the specified "bucket" exists in the cache
-    bool exists( const SGBucket& b );
+    bool exists( const SGBucket& b ) const;
 
     // Ensure at least one entry is free in the cache
-    void make_space();
+    bool make_space();
+
+    // Clear all completely loaded tiles (ignores partially loaded tiles)
+    void clear_cache();
 
     // Fill in a tile cache entry with real data for the specified bucket 
-    void fill_in( const SGBucket& b );
+    // void fill_in( const SGBucket& b );
 
     // Return a pointer to the specified tile cache entry 
     inline FGTileEntry *get_tile( const long tile_index ) {
        tile_map_iterator it = tile_cache.find( tile_index );
        if ( it != tile_cache.end() ) {
+           it->second->set_timestamp(globals->get_sim_time_sec());
            return it->second;
        } else {
            return NULL;
@@ -119,11 +121,14 @@ public:
 
     inline int get_max_cache_size() const { return max_cache_size; }
     inline void set_max_cache_size( int m ) { max_cache_size = m; }
-};
 
-
-// the tile cache
-extern FGNewCache global_tile_cache;
+    /**
+     * Create a new tile and enqueue it for loading.
+     * @param b 
+     * @return success/failure
+     */
+    bool insert_tile( FGTileEntry* e );
+};
 
 
 #endif // _NEWCACHE_HXX