r_bsp.c

The source code of Doom legacy for windows

// Emacs style mode select   -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id: r_bsp.c,v 1.20 2001/04/30 17:19:24 stroggonmeth Exp $
//
// Copyright (C) 1993-1996 by id Software, Inc.
// Portions Copyright (C) 1998-2000 by DooM Legacy Team.
//
// 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.
//
//
// $Log: r_bsp.c,v $
// Revision 1.20  2001/04/30 17:19:24  stroggonmeth
// HW fix and misc. changes
//
// Revision 1.19  2001/03/21 18:24:39  stroggonmeth
// Misc changes and fixes. Code cleanup
//
// Revision 1.18  2001/03/13 22:14:20  stroggonmeth
// Long time no commit. 3D floors, FraggleScript, portals, ect.
//
// Revision 1.17  2001/01/25 22:15:44  bpereira
// added heretic support
//
// Revision 1.16  2000/11/21 21:13:17  stroggonmeth
// Optimised 3D floors and fixed crashing bug in high resolutions.
//
// Revision 1.15  2000/11/09 17:56:20  stroggonmeth
// Hopefully fixed a few bugs and did a few optimizations.
//
// Revision 1.14  2000/11/02 19:49:36  bpereira
// no message
//
// Revision 1.13  2000/11/02 17:50:09  stroggonmeth
// Big 3Dfloors & FraggleScript commit!!
//
// Revision 1.12  2000/05/23 15:22:34  stroggonmeth
// Not much. A graphic bug fixed.
//
// Revision 1.11  2000/05/03 23:51:01  stroggonmeth
// A few, quick, changes.
//
// Revision 1.10  2000/04/20 21:47:24  stroggonmeth
// no message
//
// Revision 1.9  2000/04/18 17:39:39  stroggonmeth
// Bug fixes and performance tuning.
//
// Revision 1.8  2000/04/15 22:12:58  stroggonmeth
// Minor bug fixes
//
// Revision 1.7  2000/04/13 23:47:47  stroggonmeth
// See logs
//
// Revision 1.6  2000/04/11 19:07:25  stroggonmeth
// Finished my logs, fixed a crashing bug.
//
// Revision 1.5  2000/04/06 21:06:19  stroggonmeth
// Optimized extra_colormap code...
// Added #ifdefs for older water code.
//
// Revision 1.4  2000/04/04 19:28:43  stroggonmeth
// Global colormaps working. Added a new linedef type 272.
//
// Revision 1.3  2000/04/04 00:32:47  stroggonmeth
// Initial Boom compatability plus few misc changes all around.
//
// Revision 1.2  2000/02/27 00:42:10  hurdler
// fix CR+LF problem
//
// Revision 1.1.1.1  2000/02/22 20:32:32  hurdler
// Initial import into CVS (v1.29 pr3)
//
//
// DESCRIPTION:
//      BSP traversal, handling of LineSegs for rendering.
//
//-----------------------------------------------------------------------------

#include "doomdef.h"
#include "g_game.h"
#include "r_local.h"
#include "r_state.h"

#include "r_splats.h"
#include "p_local.h"  //SoM: 4/10/2000: camera
#include "z_zone.h"   //SoM: Check R_Prep3DFloors

seg_t*          curline;
side_t*         sidedef;
line_t*         linedef;
sector_t*       frontsector;
sector_t*       backsector;



//faB:  very ugly realloc() of drawsegs at run-time, I upped it to 512
//      instead of 256.. and someone managed to send me a level with
//      896 drawsegs! So too bad here's a limit removal