General cleanups to cut cross-dependencies and speed up compilation.

[flightgear.git] / src / Scenery / tileentry.hxx

diff --git a/src/Scenery/tileentry.hxx b/src/Scenery/tileentry.hxx
index 091110212d15b8c16e26f9795092d881bab93d9e..574018e4f532d88922aa908589681a3888e41109 100644 (file)
--- 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  - curt@flightgear.org
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -38,7 +38,7 @@
 #endif
 
 #include <GL/glut.h>
-#include <simgear/xgl/xgl.h>
+#include <GL/gl.h>
 
 #include <simgear/compiler.h>
 
@@ -49,6 +49,7 @@
 
 #include <simgear/bucket/newbucket.hxx>
 #include <simgear/math/point3d.hxx>
+#include <simgear/misc/sg_path.hxx>
 
 #if defined( sgi )
 #include <strings.h>
@@ -62,6 +63,39 @@ typedef vector < Point3D > point_list;
 typedef point_list::iterator point_list_iterator;
 typedef point_list::const_iterator const_point_list_iterator;
 
+class FGTileEntry;
+
+
+/**
+ * A class to hold deferred model loading info
+ */
+class FGDeferredModel {
+
+private:
+
+    string model_path;
+    string texture_path;
+    FGTileEntry *tile;
+    ssgTransform *obj_trans;
+
+public:
+
+    inline FGDeferredModel() { }
+    inline FGDeferredModel( const string mp, const string tp,
+                    FGTileEntry *t, ssgTransform *ot )
+    {
+       model_path = mp;
+       texture_path = tp;
+       tile = t;
+       obj_trans = ot;
+    }
+    inline ~FGDeferredModel() { }
+    inline string get_model_path() const { return model_path; }
+    inline string get_texture_path() const { return texture_path; }
+    inline FGTileEntry *get_tile() const { return tile; }
+    inline ssgTransform *get_obj_trans() const { return obj_trans; }
+};
+
 
 /**
  * A class to encapsulate everything we need to know about a scenery tile.
@@ -117,12 +151,32 @@ private:
     // want based on lighting conditions.
     ssgSelector *lights_brightness;
 
+    // ADA --->
+    // Runway centre coords.
+    Point3D rway_center; // Reqd. for switching as function of distance from runway center
+    //pointers for Runway lights    
+    ssgTransform *lightmaps_transform; // branch for runway lights
+    ssgRangeSelector *lightmaps_range; // tried to maintain same structure as Curt's ground
+    ssgSelector *lightmaps_brightness; // selector node for points/ lightmaps
+
+    ssgSimpleState *lightmap_state; // OpenGL state of the polygons that make up runway lights
+    ssgVertexArray *light_points; // array of runway light coords.
+    // <--- ADA
+
     /**
-     * Indicates this tile has been loaded from a file.
-     * Note that this may be set asynchronously by another thread.
+     * Indicates this tile has been loaded from a file and connected
+     * into the scene graph.  Note that this may be set asynchronously
+     * by another thread.
      */
     volatile bool loaded;
 
+    /**
+     * Count of pending models to load for this tile.  This tile
+     * cannot be removed until this number reaches zero (i.e. no
+     * pending models to load for this tile.)
+     */
+    volatile int pending_models;
+
     ssgBranch* obj_load( const std::string& path,
                         ssgVertexArray* lights, bool is_base );
 
@@ -130,12 +184,23 @@ private:
 
 public:
 
+    // ADA --->
+    ssgTransform *ols_transform; // transform node for flols simulation
+    ssgSelector *lightmaps_sequence; // selector node for points/ lightmaps
+    ssgBranch* gen_runway_lights(ssgVertexArray *points,ssgVertexArray *normal, ssgVertexArray *dir, int *type);
+    // <--- ADA
+
     // Constructor
     FGTileEntry( const SGBucket& b );
 
     // Destructor
     ~FGTileEntry();
 
+#ifdef WISH_PLIB_WAS_THREADED // but it isn't
+    // Schedule tile to be freed/removed
+    void sched_removal();
+#endif
+
     // 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();
@@ -157,9 +222,40 @@ public:
      * Load tile data from a file.
      * @param base name of directory containing tile data file.
      * @param is_base is this a base terrain object for which we should generate
-     *        random ground light points
-     */
+     *        random ground light points */
     void load( const SGPath& base, bool is_base );
+
+    /**
+     * 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 { return loaded; }
+
+    /**
+     * decrement the pending models count
+     */
+    inline void dec_pending_models() { pending_models--; }
+
+    /**
+     * return the number of remaining pending models for this tile
+     */
+    inline int get_pending_models() const { return pending_models; }
+
+    /**
+     * Return the "bucket" for this tile
+     */
+    inline SGBucket get_tile_bucket() const { return tile_bucket; }
+
+    /**
+     * Add terrain mesh and ground lighting to scene graph.
+     */
+    void add_ssg_nodes( ssgBranch* terrain, ssgBranch* ground );
+
+    /**
+     * disconnect terrain mesh and ground lighting nodes from scene
+     * graph for this tile.
+     */
+    void disconnect_ssg_nodes();
 };