# error This library requires C++
#endif
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
#include <simgear/compiler.h>
#include <vector>
-#include STL_STRING
+#include <string>
#include <simgear/bucket/newbucket.hxx>
-#include <simgear/math/point3d.hxx>
#include <simgear/misc/sg_path.hxx>
-#include <simgear/scene/model/placementtrans.hxx>
#include <osg/ref_ptr>
-#include <osg/Array>
+#include <osgDB/ReaderWriter>
#include <osg/Group>
#include <osg/LOD>
-#include <osg/MatrixTransform>
-#include <osg/Switch>
-
-#if defined( sgi )
-#include <strings.h>
-#endif
-
-SG_USING_STD(string);
-SG_USING_STD(vector);
-
-
-typedef vector < Point3D > point_list;
-typedef point_list::iterator point_list_iterator;
-typedef point_list::const_iterator const_point_list_iterator;
-
-
-class FGTileEntry;
-
-#if 0
-/**
- * A class to hold deferred model loading info
- */
-class FGDeferredModel {
-
-private:
-
- string model_path;
- string texture_path;
- FGTileEntry *tile;
- osg::ref_ptr<osg::MatrixTransform> obj_trans;
- SGBucket bucket;
- bool cache_obj;
-
-
-public:
-
- inline FGDeferredModel() { }
- inline FGDeferredModel( const string& mp, const string& tp, SGBucket b,
- FGTileEntry *t, osg::MatrixTransform *ot, bool co )
- {
- model_path = mp;
- texture_path = tp;
- bucket = b;
- tile = t;
- obj_trans = ot;
- cache_obj = co;
- }
- inline ~FGDeferredModel() { }
- inline const string& get_model_path() const { return model_path; }
- inline const string& get_texture_path() const { return texture_path; }
- inline const SGBucket& get_bucket() const { return bucket; }
- inline const bool get_cache_state() const { return cache_obj; }
- inline FGTileEntry *get_tile() const { return tile; }
- inline osg::MatrixTransform *get_obj_trans() const { return obj_trans.get(); }
-};
-#endif
/**
* A class to encapsulate everything we need to know about a scenery tile.
*/
-class FGTileEntry {
+class TileEntry {
public:
// this tile's official location in the world
// pointer to ssg range selector for this tile
osg::ref_ptr<osg::LOD> _node;
-
- static bool obj_load( const std::string& path,
- osg::Group* geometry,
- bool is_base );
-
- /**
- * this value is used by the tile scheduler/loader to mark which
- * tiles are in the primary ring (i.e. the current tile or the
- * surrounding eight.) Other routines then can use this as an
- * optimization and not do some operation to tiles outside of this
- * inner ring. (For instance vasi color updating)
- */
- bool is_inner_ring;
+ // Reference to DatabaseRequest object set and used by the
+ // osgDB::DatabasePager.
+ osg::ref_ptr<osg::Referenced> _databaseRequest;
/**
- * this variable tracks the status of the incremental memory
- * freeing.
+ * This value is used by the tile scheduler/loader to load tiles
+ * in a useful sequence. The priority is set to reflect the tiles
+ * distance from the center, so all tiles are loaded in an innermost
+ * to outermost sequence.
*/
- enum {
- NODES = 0x01,
- VEC_PTRS = 0x02,
- TERRA_NODE = 0x04,
- GROUND_LIGHTS = 0x08,
- VASI_LIGHTS = 0x10,
- RWY_LIGHTS = 0x20,
- TAXI_LIGHTS = 0x40,
- LIGHTMAPS = 0x80
- };
- int free_tracker;
+ float _priority;
+ /** Flag indicating if tile belongs to current view. */
+ bool _current_view;
+ /** Time when tile expires. */
+ double _time_expired;
public:
// Constructor
- FGTileEntry( const SGBucket& b );
+ TileEntry( const SGBucket& b );
+ TileEntry( const TileEntry& t );
// Destructor
- ~FGTileEntry();
-
- // Clean up the memory used by this tile and delete the arrays
- // used by ssg as well as the whole ssg branch. This does a
- // partial clean up and exits so we can spread the load across
- // multiple frames. Returns false if work remaining to be done,
- // true if dynamically allocated memory used by this tile is
- // completely freed.
- bool free_tile();
+ ~TileEntry();
// Update the ssg transform node for this tile so it can be
// properly drawn relative to our (0,0,0) point
/**
* Transition to OSG database pager
*/
- static osg::Node* loadTileByName(const std::string& index_str,
- const string_list &path_list);
+ static osg::Node* loadTileByFileName(const std::string& index_str,
+ const osgDB::Options*);
/**
* Return true if the tile entry is loaded, otherwise return false
* indicating that the loading thread is still working on this.
/**
* Add terrain mesh and ground lighting to scene graph.
*/
- void add_ssg_nodes( osg::Group *terrain_branch);
+ void addToSceneGraph( osg::Group *terrain_branch);
/**
* disconnect terrain mesh and ground lighting nodes from scene
* graph for this tile.
*/
- void disconnect_ssg_nodes();
+ void removeFromSceneGraph();
-
/**
* return the scenegraph node for the terrain
*/
osg::LOD *getNode() const { return _node.get(); }
- double get_timestamp() const;
- void set_timestamp( double time_ms );
+ inline double get_time_expired() const { return _time_expired; }
+ inline void update_time_expired( double time_expired ) { if (_time_expired<time_expired) _time_expired = time_expired; }
- inline bool get_inner_ring() const { return is_inner_ring; }
- inline void set_inner_ring( bool val ) { is_inner_ring = val; }
-};
+ inline void set_priority(float priority) { _priority=priority; }
+ inline float get_priority() const { return _priority; }
+ inline void set_current_view(bool current_view) { _current_view = current_view; }
+ inline bool is_current_view() const { return _current_view; }
+
+ /**
+ * Return true if the tile entry is still needed, otherwise return false
+ * indicating that the tile is no longer in active use.
+ */
+ inline bool is_expired(double current_time) const { return (_current_view) ? false : (current_time > _time_expired); }
+ // Get the ref_ptr to the DatabaseRequest object, in order to pass
+ // this to the pager.
+ osg::ref_ptr<osg::Referenced>& getDatabaseRequest()
+ {
+ return _databaseRequest;
+ }
+};
#endif // _TILEENTRY_HXX
projects / flightgear.git / blobdiff