#define TEST_LAST_HIT_CACHE
-#if defined(ENABLE_THREADS) && ENABLE_THREADS
+#if defined(ENABLE_THREADS)
SGLockedQueue<FGTileEntry *> FGTileMgr::attach_queue;
SGLockedQueue<FGDeferredModel *> FGTileMgr::model_queue;
#else
}
while ( ! model_queue.empty() ) {
-#if defined(ENABLE_THREADS) && ENABLE_THREADS
+#if defined(ENABLE_THREADS)
FGDeferredModel* dm = model_queue.pop();
#else
FGDeferredModel* dm = model_queue.front();
// schedule a needed buckets for loading
-void FGTileMgr::schedule_needed( double vis, SGBucket curr_bucket) {
+void FGTileMgr::schedule_needed( double vis, const SGBucket& curr_bucket) {
// sanity check (unfortunately needed!)
if ( longitude < -180.0 || longitude > 180.0
|| latitude < -90.0 || latitude > 90.0 )
// cout << "loading next model ..." << endl;
// load the next tile in the queue
-#if defined(ENABLE_THREADS) && ENABLE_THREADS
+#if defined(ENABLE_THREADS)
FGDeferredModel* dm = model_queue.pop();
#else
FGDeferredModel* dm = model_queue.front();
SGShadowVolume::occluderTypeTileObject,
(ssgBranch *) dm->get_tile()->get_terra_transform());
}
- } catch (const sg_exception& exc) {
- SG_LOG( SG_ALL, SG_ALERT, exc.getMessage() );
+ } catch (const sg_io_exception& exc) {
+ string m(exc.getMessage());
+ m += " ";
+ m += exc.getLocation().asString();
+ SG_LOG( SG_ALL, SG_ALERT, m );
+ } catch (const sg_exception& exc) { // XXX may be redundant
+ SG_LOG( SG_ALL, SG_ALERT, exc.getMessage());
}
dm->get_tile()->dec_pending_models();
}
}
- // cout << "current elevation (ssg) == " << scenery.get_cur_elev() << endl;
-
// Notify the tile loader that it can load another tile
loader.update();
if ( !attach_queue.empty() ) {
-#if defined(ENABLE_THREADS) && ENABLE_THREADS
+#if defined(ENABLE_THREADS)
FGTileEntry* e = attach_queue.pop();
#else
FGTileEntry* e = attach_queue.front();
// get real serious and agressively free up some tiles so
// we don't explode our memory usage.
- SG_LOG( SG_TERRAIN, SG_WARN,
+ SG_LOG( SG_TERRAIN, SG_ALERT,
"Warning: catching up on tile delete queue" );
}
int FGTileMgr::update( double visibility_meters )
{
SGLocation *location = globals->get_current_view()->getSGLocation();
- sgdVec3 abs_pos_vector;
- sgdCopyVec3( abs_pos_vector,
- globals->get_current_view()->get_absolute_view_pos() );
- return update( location, visibility_meters, abs_pos_vector );
+ return update( location, visibility_meters );
}
-int FGTileMgr::update( SGLocation *location, double visibility_meters,
- sgdVec3 abs_pos_vector )
+int FGTileMgr::update( SGLocation *location, double visibility_meters )
{
SG_LOG( SG_TERRAIN, SG_DEBUG, "FGTileMgr::update()" );
// save bucket...
previous_bucket = current_bucket;
- updateCurrentElevAtPos( abs_pos_vector, altitude_m,
- location->get_tile_center() );
-
return 1;
}
}
}
-
-int FGTileMgr::updateCurrentElevAtPos( sgdVec3 abs_pos_vector,
- double max_alt_m,
- Point3D center)
-{
- sgdVec3 sc;
-
- sgdSetVec3( sc, center[0], center[1], center[2]);
-
- // overridden with actual values if a terrain intersection is
- // found
- double hit_elev = -9999.0;
- double hit_radius = 0.0;
- sgdVec3 hit_normal = { 0.0, 0.0, 0.0 };
-
- bool hit = false;
- if ( fabs(sc[0]) > 1.0 || fabs(sc[1]) > 1.0 || fabs(sc[2]) > 1.0 ) {
- // scenery center has been properly defined so any hit should
- // be valid (and not just luck)
- hit = fgCurrentElev(abs_pos_vector,
- max_alt_m,
- sc,
- // uncomment next paramater to fly under
- // bridges and a slightly faster algorithm
- // but you won't be able to land on aircraft carriers
- // current_tile->get_terra_transform(),
- &hit_list,
- &hit_elev,
- &hit_radius,
- hit_normal);
- }
-
- if ( hit ) {
- // cout << "elev = " << hit_elev << " " << hit_radius << endl;
- globals->get_scenery()->set_cur_elev( hit_elev );
- globals->get_scenery()->set_cur_radius( hit_radius );
- globals->get_scenery()->set_cur_normal( hit_normal );
- } else {
- globals->get_scenery()->set_cur_elev( -9999.0 );
- globals->get_scenery()->set_cur_radius( 0.0 );
- globals->get_scenery()->set_cur_normal( hit_normal );
- }
- return hit;
-}
-
-
void FGTileMgr::prep_ssg_nodes( SGLocation *location, float vis ) {
// traverse the potentially viewable tile list and update range
// selector and transform
- Point3D center = location->get_tile_center();
- if (center == Point3D(0.0))
- return;
float *up = location->get_world_up();
FGTileEntry *e;
tile_cache.reset_traversal();
+ const double *vp = location->get_absolute_view_pos();
+ Point3D viewpos(vp[0], vp[1], vp[2]);
while ( ! tile_cache.at_end() ) {
// cout << "processing a tile" << endl;
if ( (e = tile_cache.get_current()) ) {
- e->prep_ssg_node( center, up, vis);
+ e->prep_ssg_node( viewpos, up, vis);
} else {
SG_LOG(SG_INPUT, SG_ALERT, "warning ... empty tile in cache");
}
{
return tile_filter ? 1 : 0;
}
+
+bool FGTileMgr::scenery_available(double lat, double lon, double range_m)
+{
+ // sanity check (unfortunately needed!)
+ if ( lon < -180.0 || lon > 180.0 || lat < -90.0 || lat > 90.0 )
+ return false;
+
+ SGBucket bucket(lon, lat);
+ FGTileEntry *te = tile_cache.get_tile(bucket);
+ if (!te || !te->is_loaded())
+ return false;
+
+ // Traverse all tiles required to be there for the given visibility.
+ // This uses exactly the same algorithm like the tile scheduler.
+ double tile_width = bucket.get_width_m();
+ double tile_height = bucket.get_height_m();
+
+ int xrange = (int)fabs(range_m / tile_width) + 1;
+ int yrange = (int)fabs(range_m / tile_height) + 1;
+
+ for ( int x = -xrange; x <= xrange; ++x ) {
+ for ( int y = -yrange; y <= yrange; ++y ) {
+ // We have already checked for the center tile.
+ if ( x != 0 || y != 0 ) {
+ SGBucket b = sgBucketOffset( lon, lat, x, y );
+ FGTileEntry *te = tile_cache.get_tile(b);
+ if (!te || !te->is_loaded())
+ return false;
+ }
+ }
+ }
+
+ // Survived all tests.
+ return true;
+}
projects / flightgear.git / blobdiff