//
// 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.
//
// $Id$
#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)
// forward declaration
+class ssgBranch;
+class ssgEntity;
class FGTileEntry;
class FGDeferredModel;
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(double visibility_meters, SGBucket curr_bucket);
-
- // 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
#endif // ENABLE_THREADS
static queue<FGTileEntry *> delete_queue;
+ /**
+ * Tile filter indicator, to implement multipass rendering
+ */
+ static bool tile_filter;
+
public:
/**
// 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 visibility_meters );
- int update( SGLocation *location, double visibility_meters,
- sgdVec3 abs_pos_vector );
-
- int updateCurrentElevAtPos(sgdVec3 abs_pos_vector, Point3D center );
-
- // 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( SGLocation *location, double visibility_meters);
// Prepare the ssg nodes corresponding to each tile. For each
// tile, set the ssg transform and update it's range selector
// tiles...
void refresh_view_timestamps();
- inline SGBucket get_current_bucket () { return current_bucket; }
- inline SGBucket get_previous_bucket () { return previous_bucket; }
+ inline const SGBucket& get_current_bucket () const { return current_bucket; }
+ inline const SGBucket& get_previous_bucket () const { return previous_bucket; }
+
+ static bool set_tile_filter( bool f );
+ static int tile_filter_cb( ssgEntity *, int );
+
+ /// 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);
};