X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=src%2FScenery%2Ftileentry.hxx;h=54cebe768ead04c2ec6e2d5cdc6429a1a2726343;hb=948aa70af78626584042b70fdf3c3babfb5aa804;hp=dbbf8a42e135b41787753451ac4eb228993d8cde;hpb=95d6d93bed500dd2548dd1ee75d5693ee46accde;p=flightgear.git diff --git a/src/Scenery/tileentry.hxx b/src/Scenery/tileentry.hxx index dbbf8a42e..54cebe768 100644 --- a/src/Scenery/tileentry.hxx +++ b/src/Scenery/tileentry.hxx @@ -2,7 +2,7 @@ // // Written by Curtis Olson, started May 1998. // -// Copyright (C) 1998, 1999 Curtis L. Olson - curt@flightgear.org +// Copyright (C) 1998 - 2001 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 @@ -16,7 +16,7 @@ // // 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. // // $Id$ @@ -25,119 +25,126 @@ #define _TILEENTRY_HXX -#ifndef __cplusplus +#ifndef __cplusplus # error This library requires C++ -#endif - -#ifdef HAVE_CONFIG_H -# include -#endif - -#ifdef HAVE_WINDOWS_H -# include #endif -#include -#include - #include #include -#include STL_STRING - -#include // plib includes +#include #include -#include - -#if defined( sgi ) -#include -#endif - -FG_USING_STD(string); -FG_USING_STD(vector); - +#include -typedef vector < Point3D > point_list; -typedef point_list::iterator point_list_iterator; -typedef point_list::const_iterator const_point_list_iterator; +#include +#include +#include +#include - -// Scenery tile class -class FGTileEntry { +/** + * A class to encapsulate everything we need to know about a scenery tile. + */ +class TileEntry { public: - - typedef vector < sgVec3 * > free_vec3_list; - typedef vector < sgVec2 * > free_vec2_list; - typedef vector < unsigned short * > free_index_list; - - // node list - point_list nodes; - int ncount; - - // global tile culling data - Point3D center; - double bounding_radius; - Point3D offset; - // this tile's official location in the world SGBucket tile_bucket; + std::string tileFileName; - // list of pointers to memory chunks that need to be freed when - // tile entry goes away - free_vec3_list vec3_ptrs; - free_vec2_list vec2_ptrs; - free_index_list index_ptrs; - - // ssg tree structure for this tile is as follows: - // ssgRoot(scene) - // - ssgBranch(terrain) - // - ssgTransform(tile) - // - ssgRangeSelector(tile) - // - ssgEntity(tile) - // - kid1(fan) - // - kid2(fan) - // ... - // - kidn(fan) - - // pointer to ssg transform for this tile - ssgTransform *terra_transform; - ssgTransform *lights_transform; +private: // pointer to ssg range selector for this tile - ssgRangeSelector *terra_range; - ssgRangeSelector *lights_range; - - // we create several preset brightness and can choose which one we - // want based on lighting conditions. - ssgSelector *lights_brightness; + osg::ref_ptr _node; + // Reference to DatabaseRequest object set and used by the + // osgDB::DatabasePager. + osg::ref_ptr _databaseRequest; + + /** + * 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. + */ + float _priority; + /** Flag indicating if tile belongs to current view. */ + bool _current_view; + /** Time when tile expires. */ + double _time_expired; public: // Constructor - FGTileEntry(); + TileEntry( const SGBucket& b ); + TileEntry( const TileEntry& t ); // Destructor - ~FGTileEntry(); + ~TileEntry(); - // Clean up the memory used by this tile and delete the arrays - // used by ssg as well as the whole ssg branch - void free_tile(); - - // Calculate this tile's offset - void SetOffset( const Point3D& p) + // Update the ssg transform node for this tile so it can be + // properly drawn relative to our (0,0,0) point + void prep_ssg_node(float vis); + + /** + * Transition to OSG database pager + */ + 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. + */ + inline bool is_loaded() const { - offset = center - p; + return _node->getNumChildren() > 0; } - // Return this tile's offset - inline Point3D get_offset() const { return offset; } - - // Update the ssg transform node for this tile so it can be - // properly drawn relative to our (0,0,0) point - void prep_ssg_node( const Point3D& p, float vis); + /** + * Return the "bucket" for this tile + */ + inline const SGBucket& get_tile_bucket() const { return tile_bucket; } + + /** + * Add terrain mesh and ground lighting to scene graph. + */ + void addToSceneGraph( osg::Group *terrain_branch); + + /** + * disconnect terrain mesh and ground lighting nodes from scene + * graph for this tile. + */ + void removeFromSceneGraph(); + + /** + * Refresh a tile, reload the node from disk. + */ + void refresh(); + + /** + * return the scenegraph node for the terrain + */ + osg::LOD *getNode() const { return _node.get(); } + + inline double get_time_expired() const { return _time_expired; } + inline void update_time_expired( double time_expired ) { if (_time_expired _time_expired); } + + // Get the ref_ptr to the DatabaseRequest object, in order to pass + // this to the pager. + osg::ref_ptr& getDatabaseRequest() + { + return _databaseRequest; + } }; - #endif // _TILEENTRY_HXX