7f1d04962e
Added some temporary code to calculate bouding radius, until the scenery generation tools and scenery can be updated.
153 lines
4.5 KiB
C++
153 lines
4.5 KiB
C++
/**************************************************************************
|
|
* tilecache.hxx -- routines to handle scenery tile caching
|
|
*
|
|
* Written by Curtis Olson, started January 1998.
|
|
*
|
|
* Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* 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.
|
|
*
|
|
* $Id$
|
|
* (Log is kept at end of this file)
|
|
**************************************************************************/
|
|
|
|
|
|
#ifndef _TILECACHE_HXX
|
|
#define _TILECACHE_HXX
|
|
|
|
|
|
#ifndef __cplusplus
|
|
# error This library requires C++
|
|
#endif
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_WINDOWS_H
|
|
# include <windows.h>
|
|
#endif
|
|
|
|
#include <GL/glut.h>
|
|
#include <XGL/xgl.h>
|
|
|
|
#include <Bucket/bucketutils.h>
|
|
#include <Include/fg_types.h>
|
|
|
|
/* For best results ... i.e. to avoid tile load problems and blank areas
|
|
*
|
|
* FG_TILE_CACHE_SIZE >= (o->tile_diameter + 1) ** 2 */
|
|
#define FG_TILE_CACHE_SIZE 121
|
|
|
|
|
|
/* Tile cache record */
|
|
struct fgTILE {
|
|
struct fgBUCKET tile_bucket;
|
|
GLint display_list;
|
|
fgCartesianPoint3d local_ref;
|
|
double bounding_radius;
|
|
int used;
|
|
int priority;
|
|
};
|
|
|
|
/* tile cache */
|
|
extern struct fgTILE tile_cache[FG_TILE_CACHE_SIZE];
|
|
|
|
|
|
/* Initialize the tile cache subsystem */
|
|
void fgTileCacheInit( void );
|
|
|
|
/* Search for the specified "bucket" in the cache */
|
|
int fgTileCacheExists( struct fgBUCKET *p );
|
|
|
|
/* Return index of next available slot in tile cache */
|
|
int fgTileCacheNextAvail( void );
|
|
|
|
/* Fill in a tile cache entry with real data for the specified bucket */
|
|
void fgTileCacheEntryFillIn( int index, struct fgBUCKET *p );
|
|
|
|
/* Return info for a tile cache entry */
|
|
void fgTileCacheEntryInfo( int index, GLint *display_list,
|
|
fgCartesianPoint3d *local_ref,
|
|
double *radius );
|
|
|
|
|
|
#endif /* _TILECACHE_HXX */
|
|
|
|
|
|
/* $Log$
|
|
/* Revision 1.7 1998/05/16 13:09:57 curt
|
|
/* Beginning to add support for view frustum culling.
|
|
/* Added some temporary code to calculate bouding radius, until the
|
|
/* scenery generation tools and scenery can be updated.
|
|
/*
|
|
* Revision 1.6 1998/05/07 23:15:20 curt
|
|
* Fixed a glTexImage2D() usage bug where width and height were mis-swapped.
|
|
* Added support for --tile-radius=n option.
|
|
*
|
|
* Revision 1.5 1998/05/02 01:52:17 curt
|
|
* Playing around with texture coordinates.
|
|
*
|
|
* Revision 1.4 1998/04/30 12:35:31 curt
|
|
* Added a command line rendering option specify smooth/flat shading.
|
|
*
|
|
* Revision 1.3 1998/04/25 22:06:32 curt
|
|
* Edited cvs log messages in source files ... bad bad bad!
|
|
*
|
|
* Revision 1.2 1998/04/24 00:51:08 curt
|
|
* Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
|
|
* Tweaked the scenery file extentions to be "file.obj" (uncompressed)
|
|
* or "file.obz" (compressed.)
|
|
*
|
|
* Revision 1.1 1998/04/22 13:22:47 curt
|
|
* C++ - ifing the code a bit.
|
|
*
|
|
* Revision 1.10 1998/04/21 17:02:45 curt
|
|
* Prepairing for C++ integration.
|
|
*
|
|
* Revision 1.9 1998/04/14 02:23:17 curt
|
|
* Code reorganizations. Added a Lib/ directory for more general libraries.
|
|
*
|
|
* Revision 1.8 1998/04/08 23:30:08 curt
|
|
* Adopted Gnu automake/autoconf system.
|
|
*
|
|
* Revision 1.7 1998/04/03 22:11:38 curt
|
|
* Converting to Gnu autoconf system.
|
|
*
|
|
* Revision 1.6 1998/02/18 15:07:10 curt
|
|
* Tweaks to build with SGI OpenGL (and therefor hopefully other accelerated
|
|
* drivers will work.)
|
|
*
|
|
* Revision 1.5 1998/02/16 13:39:45 curt
|
|
* Miscellaneous weekend tweaks. Fixed? a cache problem that caused whole
|
|
* tiles to occasionally be missing.
|
|
*
|
|
* Revision 1.4 1998/01/31 00:43:27 curt
|
|
* Added MetroWorks patches from Carmen Volpe.
|
|
*
|
|
* Revision 1.3 1998/01/29 00:51:40 curt
|
|
* First pass at tile cache, dynamic tile loading and tile unloading now works.
|
|
*
|
|
* Revision 1.2 1998/01/27 00:48:04 curt
|
|
* Incorporated Paul Bleisch's <pbleisch@acm.org> new debug message
|
|
* system and commandline/config file processing code.
|
|
*
|
|
* Revision 1.1 1998/01/24 00:03:29 curt
|
|
* Initial revision.
|
|
*
|
|
*/
|
|
|
|
|