I've made some changes to the Scenery handling. Basically just tidy ups.
The main difference is in tile.[ch]xx where I've changed list<fgFRAGMENT> to
vector<fgFRAGMENT>. Studying our usage patterns this seems reasonable.
Lists are good if you need to insert/delete elements randomly but we
don't do that. All access seems to be sequential. Two additional
benefits are smaller memory usage - each list element requires pointers
to the next and previous elements, and faster access - vector iterators
are smaller and faster than list iterators. This should also help
Charlie Hotchkiss' problem when compiling with Borland and STLport.
./Lib/Bucket/bucketutils.hxx
Convenience functions for fgBUCKET.
./Simulator/Scenery/tile.cxx
./Simulator/Scenery/tile.hxx
Changed fragment list to a vector.
Added some convenience member functions.
./Simulator/Scenery/tilecache.cxx
./Simulator/Scenery/tilecache.hxx
use const fgBUCKET& instead of fgBUCKET* where appropriate.
./Simulator/Scenery/tilemgr.cxx
./Simulator/Scenery/tilemgr.hxx
uses all the new convenience functions.
Nested fgFACE inside fgFRAGMENT since its not used anywhere else.
./Simulator/Objects/material.cxx
./Simulator/Objects/material.hxx
Made fgMATERIAL and fgMATERIAL_MGR bona fide classes with private
data members - that should keep the rabble happy :)
./Simulator/Scenery/tilemgr.cxx
In viewable() delay evaluation of eye[0] and eye[1] in until they're
actually needed.
Change to fgTileMgrRender() to call fgMATERIAL_MGR::render_fragments()
method.
./Include/fg_stl_config.h
./Include/auto_ptr.hxx
Added support for g++ 2.7.
Further changes to other files are forthcoming.
Brief summary of changes required for g++ 2.7.
operator->() not supported by iterators: use (*i).x instead of i->x
default template arguments not supported,
<functional> doesn't have mem_fun_ref() needed by callbacks.
some std include files have different names.
template member functions not supported.
- saving the entire vertex list for each tile with the tile records.
- saving the face list for each fragment with the fragment records.
- code to intersect the current vertical line with the proper face in
an efficient manner as possible.
Fixed a bug where the tiles weren't being shifted to "near" (0,0,0)
Working on rewriting the tile management system so a tile is just a list
fragments, and the fragment record contains the display list for that fragment.
data file rather than calculating it on the fly.
Fixed polygon winding problem in scenery generation stage rather than
compensating for it on the fly.
Made a fgTILECACHE class.
(0, 0, 0) GLfloats run out of precision at the distances we need to model
the earth, but we can do a bunch of pre-transformations using double math
and then cast to GLfloat once everything is close in where we have less
precision problems.
