// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-//
-// $Id$
-
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/compiler.h>
-#include <plib/ul.h>
-#include <Main/main.hxx>
-
-#include STL_STRING
+#include <string>
#include <sstream>
+#include <istream>
-#include <osg/Array>
-#include <osg/Geometry>
-#include <osg/Geode>
#include <osg/LOD>
-#include <osg/MatrixTransform>
-#include <osg/Math>
-#include <osg/NodeCallback>
-#include <osg/Switch>
-
-#include <osgDB/FileNameUtils>
-#include <osgDB/ReaderWriter>
-#include <osgDB/ReadFile>
-#include <osgDB/Registry>
#include <simgear/bucket/newbucket.hxx>
#include <simgear/debug/logstream.hxx>
-#include <simgear/math/polar3d.hxx>
-#include <simgear/math/sg_geodesy.hxx>
-#include <simgear/math/sg_random.h>
-#include <simgear/misc/sgstream.hxx>
-#include <simgear/scene/material/mat.hxx>
-#include <simgear/scene/material/matlib.hxx>
-#include <simgear/scene/model/ModelRegistry.hxx>
-#include <simgear/scene/tgdb/apt_signs.hxx>
-#include <simgear/scene/tgdb/obj.hxx>
-#include <simgear/scene/tgdb/SGReaderWriterBTGOptions.hxx>
-#include <simgear/scene/model/placementtrans.hxx>
-#include <simgear/scene/util/SGUpdateVisitor.hxx>
-
-#include <Aircraft/aircraft.hxx>
-#include <Include/general.hxx>
-#include <Main/fg_props.hxx>
-#include <Main/globals.hxx>
-#include <Main/viewer.hxx>
-#include <Scenery/scenery.hxx>
-#include <Time/light.hxx>
#include "tileentry.hxx"
-#include "tilemgr.hxx"
-
-SG_USING_STD(string);
-using namespace simgear;
-
-// FIXME: investigate what huge update flood is clamped away here ...
-class FGTileUpdateCallback : public osg::NodeCallback {
-public:
- virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
- {
- assert(dynamic_cast<SGUpdateVisitor*>(nv));
- SGUpdateVisitor* updateVisitor = static_cast<SGUpdateVisitor*>(nv);
-
- osg::Vec3 center = node->getBound().center();
- double distance = dist(updateVisitor->getGlobalEyePos(),
- SGVec3d(center[0], center[1], center[2]));
- if (updateVisitor->getVisibility() + node->getBound().radius() < distance)
- return;
-
- traverse(node, nv);
- }
-};
-namespace
-{
-// Update the timestamp on a tile whenever it is in view.
-
-class TileCullCallback : public osg::NodeCallback
-{
-public:
- TileCullCallback() : _timeStamp(0) {}
- TileCullCallback(const TileCullCallback& tc, const osg::CopyOp& copyOp) :
- NodeCallback(tc, copyOp), _timeStamp(tc._timeStamp)
- {
- }
-
- virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
- double getTimeStamp() const { return _timeStamp; }
- void setTimeStamp(double timeStamp) { _timeStamp = timeStamp; }
-protected:
- double _timeStamp;
-};
-}
-
-void TileCullCallback::operator()(osg::Node* node, osg::NodeVisitor* nv)
-{
- if (nv->getFrameStamp())
- _timeStamp = nv->getFrameStamp()->getReferenceTime();
- traverse(node, nv);
-}
-
-double FGTileEntry::get_timestamp() const
-{
- if (_node.valid()) {
- return (dynamic_cast<TileCullCallback*>(_node->getCullCallback()))
- ->getTimeStamp();
- } else
- return DBL_MAX;
-}
-
-void FGTileEntry::set_timestamp(double time_ms)
-{
- if (_node.valid()) {
- TileCullCallback* cb
- = dynamic_cast<TileCullCallback*>(_node->getCullCallback());
- if (cb)
- cb->setTimeStamp(time_ms);
- }
-}
+using std::string;
// Constructor
-FGTileEntry::FGTileEntry ( const SGBucket& b )
+TileEntry::TileEntry ( const SGBucket& b )
: tile_bucket( b ),
+ tileFileName(b.gen_index_str()),
_node( new osg::LOD ),
- is_inner_ring(false),
- free_tracker(0),
- tileFileName(b.gen_index_str())
+ _priority(-FLT_MAX),
+ _current_view(false),
+ _time_expired(-1.0)
{
- _node->setUpdateCallback(new FGTileUpdateCallback);
- _node->setCullCallback(new TileCullCallback);
tileFileName += ".stg";
_node->setName(tileFileName);
// Give a default LOD range so that traversals that traverse
_node->setRange(0, 0.0, 10000.0);
}
-
-// Destructor
-FGTileEntry::~FGTileEntry ()
+TileEntry::TileEntry( const TileEntry& t )
+: tile_bucket( t.tile_bucket ),
+ tileFileName(t.tileFileName),
+ _node( new osg::LOD ),
+ _priority(t._priority),
+ _current_view(t._current_view),
+ _time_expired(t._time_expired)
{
+ _node->setName(tileFileName);
+ // Give a default LOD range so that traversals that traverse
+ // active children (like the groundcache lookup) will work before
+ // tile manager has had a chance to update this node.
+ _node->setRange(0, 0.0, 10000.0);
}
-void WorldCoordinate( osg::Matrix& obj_pos, double lat,
- double lon, double elev, double hdg )
+// Destructor
+TileEntry::~TileEntry ()
{
- double lon_rad = lon * SGD_DEGREES_TO_RADIANS;
- double lat_rad = lat * SGD_DEGREES_TO_RADIANS;
- double hdg_rad = hdg * SGD_DEGREES_TO_RADIANS;
-
- // setup transforms
- Point3D geod( lon_rad, lat_rad, elev );
- Point3D world_pos = sgGeodToCart( geod );
-
- double sin_lat = sin( lat_rad );
- double cos_lat = cos( lat_rad );
- double cos_lon = cos( lon_rad );
- double sin_lon = sin( lon_rad );
- double sin_hdg = sin( hdg_rad ) ;
- double cos_hdg = cos( hdg_rad ) ;
-
- obj_pos(0, 0) = cos_hdg * sin_lat * cos_lon - sin_hdg * sin_lon;
- obj_pos(0, 1) = cos_hdg * sin_lat * sin_lon + sin_hdg * cos_lon;
- obj_pos(0, 2) = -cos_hdg * cos_lat;
- obj_pos(0, 3) = SG_ZERO;
-
- obj_pos(1, 0) = -sin_hdg * sin_lat * cos_lon - cos_hdg * sin_lon;
- obj_pos(1, 1) = -sin_hdg * sin_lat * sin_lon + cos_hdg * cos_lon;
- obj_pos(1, 2) = sin_hdg * cos_lat;
- obj_pos(1, 3) = SG_ZERO;
-
- obj_pos(2, 0) = cos_lat * cos_lon;
- obj_pos(2, 1) = cos_lat * sin_lon;
- obj_pos(2, 2) = sin_lat;
- obj_pos(2, 3) = SG_ZERO;
-
- obj_pos(3, 0) = world_pos.x();
- obj_pos(3, 1) = world_pos.y();
- obj_pos(3, 2) = world_pos.z();
- obj_pos(3, 3) = SG_ONE ;
-}
-
-
-// Free "n" leaf elements of an ssg tree. returns the number of
-// elements freed. An empty branch node is considered a leaf. This
-// is intended to spread the load of freeing a complex tile out over
-// several frames.
-static int fgPartialFreeSSGtree( osg::Group *b, int n ) {
- int num_deletes = b->getNumChildren();
-
- b->removeChildren(0, b->getNumChildren());
-
- return num_deletes;
-}
-
-
-// Clean up the memory used by this tile and delete the arrays used by
-// ssg as well as the whole ssg branch
-bool FGTileEntry::free_tile() {
- int delete_size = 100;
- SG_LOG( SG_TERRAIN, SG_DEBUG,
- "FREEING TILE = (" << tile_bucket << ")" );
-
- SG_LOG( SG_TERRAIN, SG_DEBUG, "(start) free_tracker = " << free_tracker );
-
- if ( !(free_tracker & NODES) ) {
- free_tracker |= NODES;
- } else if ( !(free_tracker & VEC_PTRS) ) {
- free_tracker |= VEC_PTRS;
- } else if ( !(free_tracker & TERRA_NODE) ) {
- // delete the terrain branch (this should already have been
- // disconnected from the scene graph)
- SG_LOG( SG_TERRAIN, SG_DEBUG, "FREEING terra_transform" );
- if ( fgPartialFreeSSGtree( _node.get(), delete_size ) == 0 ) {
- _node = 0;
- free_tracker |= TERRA_NODE;
- }
- } else if ( !(free_tracker & LIGHTMAPS) ) {
- free_tracker |= LIGHTMAPS;
- } else {
- return true;
- }
-
- SG_LOG( SG_TERRAIN, SG_DEBUG, "(end) free_tracker = " << free_tracker );
-
- // if we fall down to here, we still have work todo, return false
- return false;
}
-
// Update the ssg transform node for this tile so it can be
// properly drawn relative to our (0,0,0) point
-void FGTileEntry::prep_ssg_node(float vis) {
+void TileEntry::prep_ssg_node(float vis) {
if (!is_loaded())
return;
// visibility can change from frame to frame so we update the
_node->setRange( 0, 0, vis + bounding_radius );
}
-bool FGTileEntry::obj_load( const string& path,
- osg::Group *geometry, bool is_base )
-{
- bool use_random_objects =
- fgGetBool("/sim/rendering/random-objects", true);
-
- bool use_random_vegetation =
- fgGetBool("/sim/rendering/random-vegetation", true);
-
- // try loading binary format
- osg::ref_ptr<SGReaderWriterBTGOptions> options
- = new SGReaderWriterBTGOptions();
- options->setMatlib(globals->get_matlib());
- options->setCalcLights(is_base);
- options->setUseRandomObjects(use_random_objects);
- options->setUseRandomVegetation(use_random_vegetation);
- osg::Node* node = osgDB::readNodeFile(path, options.get());
- if (node)
- geometry->addChild(node);
-
- return node;
-}
-
-
-typedef enum {
- OBJECT,
- OBJECT_SHARED,
- OBJECT_STATIC,
- OBJECT_SIGN,
- OBJECT_RUNWAY_SIGN
-} object_type;
-
-
-// storage class for deferred object processing in FGTileEntry::load()
-struct Object {
- Object(object_type t, const string& token, const SGPath& p, istream& in)
- : type(t), path(p)
- {
- in >> name;
- if (type != OBJECT)
- in >> lon >> lat >> elev >> hdg;
- in >> ::skipeol;
-
- if (type == OBJECT)
- SG_LOG(SG_TERRAIN, SG_INFO, " " << token << " " << name);
- else
- SG_LOG(SG_TERRAIN, SG_INFO, " " << token << " " << name << " lon=" <<
- lon << " lat=" << lat << " elev=" << elev << " hdg=" << hdg);
- }
- object_type type;
- string name;
- SGPath path;
- double lon, lat, elev, hdg;
-};
-
-// Work in progress... load the tile based entirely by name cuz that's
-// what we'll want to do with the database pager.
-
-osg::Node*
-FGTileEntry::loadTileByName(const string& index_str,
- const string_list &path_list)
-{
- long tileIndex;
- {
- istringstream idxStream(index_str);
- idxStream >> tileIndex;
- }
- SGBucket tile_bucket(tileIndex);
- const string basePath = tile_bucket.gen_base_path();
-
- bool found_tile_base = false;
-
- SGPath object_base;
- vector<const Object*> objects;
-
- SG_LOG( SG_TERRAIN, SG_INFO, "Loading tile " << index_str );
-
- // scan and parse all files and store information
- for (unsigned int i = 0; i < path_list.size(); i++) {
- // If we found a terrain tile in Terrain/, we have to process the
- // Objects/ dir in the same group, too, before we can stop scanning.
- // FGGlobals::set_fg_scenery() inserts an empty string to path_list
- // as marker.
- if (path_list[i].empty()) {
- if (found_tile_base)
- break;
- else
- continue;
- }
-
- bool has_base = false;
-
- SGPath tile_path = path_list[i];
- tile_path.append(basePath);
-
- SGPath basename = tile_path;
- basename.append( index_str );
-
- SG_LOG( SG_TERRAIN, SG_INFO, " Trying " << basename.str() );
-
-
- // Check for master .stg (scene terra gear) file
- SGPath stg_name = basename;
- stg_name.concat( ".stg" );
-
- sg_gzifstream in( stg_name.str() );
- if ( !in.is_open() )
- continue;
-
- while ( ! in.eof() ) {
- string token;
- in >> token;
-
- if ( token.empty() || token[0] == '#' ) {
- in >> ::skipeol;
- continue;
- }
- // Load only once (first found)
- if ( token == "OBJECT_BASE" ) {
- string name;
- in >> name >> ::skipws;
- SG_LOG( SG_TERRAIN, SG_INFO, " " << token << " " << name );
-
- if (!found_tile_base) {
- found_tile_base = true;
- has_base = true;
-
- object_base = tile_path;
- object_base.append(name);
-
- } else
- SG_LOG(SG_TERRAIN, SG_INFO, " (skipped)");
-
- // Load only if base is not in another file
- } else if ( token == "OBJECT" ) {
- if (!found_tile_base || has_base)
- objects.push_back(new Object(OBJECT, token, tile_path, in));
- else {
- string name;
- in >> name >> ::skipeol;
- SG_LOG(SG_TERRAIN, SG_INFO, " " << token << " "
- << name << " (skipped)");
- }
-
- // Always OK to load
- } else if ( token == "OBJECT_STATIC" ) {
- objects.push_back(new Object(OBJECT_STATIC, token, tile_path, in));
-
- } else if ( token == "OBJECT_SHARED" ) {
- objects.push_back(new Object(OBJECT_SHARED, token, tile_path, in));
-
- } else if ( token == "OBJECT_SIGN" ) {
- objects.push_back(new Object(OBJECT_SIGN, token, tile_path, in));
-
- } else if ( token == "OBJECT_RUNWAY_SIGN" ) {
- objects.push_back(new Object(OBJECT_RUNWAY_SIGN, token, tile_path, in));
-
- } else {
- SG_LOG( SG_TERRAIN, SG_DEBUG,
- "Unknown token '" << token << "' in " << stg_name.str() );
- in >> ::skipws;
- }
- }
- }
-
-
- // obj_load() will generate ground lighting for us ...
- osg::Group* new_tile = new osg::Group;
-
- if (found_tile_base) {
- // load tile if found ...
- obj_load( object_base.str(), new_tile, true );
-
- } else {
- // ... or generate an ocean tile on the fly
- SG_LOG(SG_TERRAIN, SG_INFO, " Generating ocean tile");
- if ( !SGGenTile( path_list[0], tile_bucket,
- globals->get_matlib(), new_tile ) ) {
- SG_LOG( SG_TERRAIN, SG_ALERT,
- "Warning: failed to generate ocean tile!" );
- }
- }
-
-
- // now that we have a valid center, process all the objects
- for (unsigned int j = 0; j < objects.size(); j++) {
- const Object *obj = objects[j];
-
- if (obj->type == OBJECT) {
- SGPath custom_path = obj->path;
- custom_path.append( obj->name );
- obj_load( custom_path.str(), new_tile, false );
-
- } else if (obj->type == OBJECT_SHARED || obj->type == OBJECT_STATIC) {
- // object loading is deferred to main render thread,
- // but lets figure out the paths right now.
- SGPath custom_path;
- if ( obj->type == OBJECT_STATIC ) {
- custom_path = obj->path;
- } else {
- custom_path = globals->get_fg_root();
- }
- custom_path.append( obj->name );
-
- osg::Matrix obj_pos;
- WorldCoordinate( obj_pos, obj->lat, obj->lon, obj->elev, obj->hdg );
-
- osg::MatrixTransform *obj_trans = new osg::MatrixTransform;
- obj_trans->setMatrix( obj_pos );
-
- // wire as much of the scene graph together as we can
- new_tile->addChild( obj_trans );
-
- osg::Node* model
- = FGTileMgr::loadTileModel(custom_path.str(),
- obj->type == OBJECT_SHARED);
- if (model)
- obj_trans->addChild(model);
- } else if (obj->type == OBJECT_SIGN || obj->type == OBJECT_RUNWAY_SIGN) {
- // load the object itself
- SGPath custom_path = obj->path;
- custom_path.append( obj->name );
-
- osg::Matrix obj_pos;
- WorldCoordinate( obj_pos, obj->lat, obj->lon, obj->elev, obj->hdg );
-
- osg::MatrixTransform *obj_trans = new osg::MatrixTransform;
- obj_trans->setMatrix( obj_pos );
-
- osg::Node *custom_obj = 0;
- if (obj->type == OBJECT_SIGN)
- custom_obj = SGMakeSign(globals->get_matlib(), custom_path.str(), obj->name);
- else
- custom_obj = SGMakeRunwaySign(globals->get_matlib(), custom_path.str(), obj->name);
-
- // wire the pieces together
- if ( custom_obj != NULL ) {
- obj_trans -> addChild( custom_obj );
- }
- new_tile->addChild( obj_trans );
-
- }
- delete obj;
- }
- return new_tile;
-}
-
void
-FGTileEntry::add_ssg_nodes( osg::Group *terrain_branch )
+TileEntry::addToSceneGraph(osg::Group *terrain_branch)
{
- // bump up the ref count so we can remove this later without
- // having ssg try to free the memory.
terrain_branch->addChild( _node.get() );
SG_LOG( SG_TERRAIN, SG_DEBUG,
void
-FGTileEntry::disconnect_ssg_nodes()
+TileEntry::removeFromSceneGraph()
{
- SG_LOG( SG_TERRAIN, SG_DEBUG, "disconnecting ssg nodes" );
-
if (! is_loaded()) {
SG_LOG( SG_TERRAIN, SG_DEBUG, "removing a not-fully loaded tile!" );
} else {
SG_LOG( SG_TERRAIN, SG_DEBUG, "removing a fully loaded tile! _node = " << _node.get() );
}
-
- // find the terrain branch parent
- int pcount = _node->getNumParents();
- if ( pcount > 0 ) {
+
+ // find the nodes branch parent
+ if ( _node->getNumParents() > 0 ) {
// find the first parent (should only be one)
osg::Group *parent = _node->getParent( 0 ) ;
if( parent ) {
- // disconnect the tile (we previously ref()'d it so it
- // won't get freed now)
parent->removeChild( _node.get() );
- } else {
- // This should be impossible.
- SG_LOG( SG_TERRAIN, SG_ALERT,
- "parent pointer is NULL! Dying" );
- exit(-1);
- }
- }
-}
-
-namespace
-{
-
-class ReaderWriterSTG : public osgDB::ReaderWriter {
-public:
- virtual const char* className() const;
-
- virtual bool acceptsExtension(const string& extension) const;
-
- virtual ReadResult readNode(const string& fileName,
- const osgDB::ReaderWriter::Options* options)
- const;
-};
-
-const char* ReaderWriterSTG::className() const
-{
- return "STG Database reader";
-}
-
-bool ReaderWriterSTG::acceptsExtension(const string& extension) const
-{
- return (osgDB::equalCaseInsensitive(extension, "gz")
- || osgDB::equalCaseInsensitive(extension, "stg"));
-}
-
-//#define SLOW_PAGER 1
-#ifdef SLOW_PAGER
-#include <unistd.h>
-#endif
-
-osgDB::ReaderWriter::ReadResult
-ReaderWriterSTG::readNode(const string& fileName,
- const osgDB::ReaderWriter::Options* options) const
-{
- string ext = osgDB::getLowerCaseFileExtension(fileName);
- if(!acceptsExtension(ext))
- return ReadResult::FILE_NOT_HANDLED;
- string stgFileName;
- if (osgDB::equalCaseInsensitive(ext, "gz")) {
- stgFileName = osgDB::getNameLessExtension(fileName);
- if (!acceptsExtension(
- osgDB::getLowerCaseFileExtension(stgFileName))) {
- return ReadResult::FILE_NOT_HANDLED;
}
- } else {
- stgFileName = fileName;
}
- osg::Node* result
- = FGTileEntry::loadTileByName(osgDB::getNameLessExtension(stgFileName),
- globals->get_fg_scenery());
- // For debugging race conditions
-#ifdef SLOW_PAGER
- sleep(5);
-#endif
- if (result)
- return result; // Constructor converts to ReadResult
- else
- return ReadResult::FILE_NOT_HANDLED;
}
-osgDB::RegisterReaderWriterProxy<ReaderWriterSTG> g_readerWriterSTGProxy;
-ModelRegistryCallbackProxy<LoadOnlyCallback> g_stgCallbackProxy("stg");
-} // namespace
projects / flightgear.git / blobdiff