//
// Written by Curtis Olson, started January 1998.
//
-// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+// Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#endif
#include <simgear/compiler.h>
+#include <simgear/math/point3d.hxx>
+#include <simgear/scene/model/location.hxx>
#include <queue>
-#include <plib/ssg.h>
-
#include <simgear/bucket/newbucket.hxx>
-#ifdef ENABLE_THREADS
+#if defined(ENABLE_THREADS)
# include <simgear/threads/SGQueue.hxx>
#endif // ENABLE_THREADS
#include "FGTileLoader.hxx"
-#include "hitlist.hxx"
#include "newcache.hxx"
#if defined(USE_MEM) || defined(WIN32)
void initialize_queue();
// schedule a tile for loading
- void sched_tile( const SGBucket& b );
+ void sched_tile( const SGBucket& b, const bool is_inner_ring );
// schedule a needed buckets for loading
- void schedule_needed();
-
- // see comment at prep_ssg_nodes()
- void prep_ssg_node( int idx );
-
- FGHitList hit_list;
+ void schedule_needed(double visibility_meters, const SGBucket& curr_bucket);
SGBucket previous_bucket;
SGBucket current_bucket;
// current longitude latitude
double longitude;
double latitude;
- double last_longitude;
- double last_latitude;
+ double altitude_m;
/**
* tile cache
* Queue tiles for loading.
*/
FGTileLoader loader;
- int counter_hack;
/**
* Work queues.
* model_queue is the set of models that need to be loaded by the
* primary render thread.
*/
-#ifdef ENABLE_THREADS
+#if defined(ENABLE_THREADS)
static SGLockedQueue<FGTileEntry *> attach_queue;
static SGLockedQueue<FGDeferredModel *> model_queue;
#else
static queue<FGTileEntry *> attach_queue;
static queue<FGDeferredModel *> model_queue;
#endif // ENABLE_THREADS
+ static queue<FGTileEntry *> delete_queue;
public:
*/
static void ready_to_attach( FGTileEntry *t ) { attach_queue.push( t ); }
-#ifdef WISH_PLIB_WAS_THREADED // but it isn't
- /**
- * Tile is detatched from scene graph and is ready to delete
- */
- inline void ready_to_delete( FGTileEntry *t ) { loader.remove( t ); }
-#endif
-
/**
* Add a pending model to the 'deferred model load' queue
*/
// Initialize the Tile Manager subsystem
int init();
+ // Update the various queues maintained by the tilemagr (private
+ // internal function, do not call directly.)
+ void update_queues();
+
+ // get state of all the scenery loading queues
+ bool all_queues_empty();
+
// given the current lon/lat (in degrees), fill in the array of
// local chunks. If the chunk isn't already in the cache, then
// read it from disk.
- int update( double lon, double lat );
-
- // Determine scenery altitude. Normally this just happens when we
- // render the scene, but we'd also like to be able to do this
- // explicitely. lat & lon are in radians. abs_view_pos in
- // meters. Returns result in meters.
- void my_ssg_los( string s, ssgBranch *branch, sgdMat4 m,
- const sgdVec3 p, const sgdVec3 dir, sgdVec3 normal );
-
- void my_ssg_los( ssgBranch *branch, sgdMat4 m,
- const sgdVec3 p, const sgdVec3 dir,
- FGHitList *list );
+ int update( double visibility_meters );
+ int update( SGLocation *location, double visibility_meters);
-
- // Prepare the ssg nodes ... for each tile, set it's proper
- // transform and update it's range selector based on current
- // visibilty
- void prep_ssg_nodes();
-};
+ // Prepare the ssg nodes corresponding to each tile. For each
+ // tile, set the ssg transform and update it's range selector
+ // based on current visibilty void prep_ssg_nodes( float
+ // visibility_meters );
+ void prep_ssg_nodes(float visibility_meters );
+
+ // Set flag with event manager so that non-moving view refreshes
+ // tiles...
+ void refresh_view_timestamps();
+ const SGBucket& get_current_bucket () const { return current_bucket; }
-// the tile manager
-extern FGTileMgr global_tile_mgr;
+ /// Returns true if scenery is avaliable for the given lat, lon position
+ /// within a range of range_m.
+ /// lat and lon are expected to be in degrees.
+ bool scenery_available(double lat, double lon, double range_m);
+};
#endif // _TILEMGR_HXX