apps/plugins/doom/r_main.h

   1 /* Emacs style mode select   -*- C++ -*-
   2  *-----------------------------------------------------------------------------
   3  *
   4  *
   5  *  PrBoom a Doom port merged with LxDoom and LSDLDoom
   6  *  based on BOOM, a modified and improved DOOM engine
   7  *  Copyright (C) 1999 by
   8  *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
   9  *  Copyright (C) 1999-2000 by
  10  *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
  11  *
  12  *  This program is free software; you can redistribute it and/or
  13  *  modify it under the terms of the GNU General Public License
  14  *  as published by the Free Software Foundation; either version 2
  15  *  of the License, or (at your option) any later version.
  16  *
  17  *  This program is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, write to the Free Software
  24  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  25  *  02111-1307, USA.
  26  *
  27  * DESCRIPTION:
  28  *      Renderer main interface.
  29  *
  30  *-----------------------------------------------------------------------------*/
  31
  32 #ifndef __R_MAIN__
  33 #define __R_MAIN__
  34
  35 #include "d_player.h"
  36 #include "r_data.h"
  37
  38 #ifdef __GNUG__
  39 #pragma interface
  40 #endif
  41
  42 //
  43 // POV related.
  44 //
  45
  46 extern fixed_t  viewcos;
  47 extern fixed_t  viewsin;
  48 extern int      viewwidth;
  49 extern int      viewheight;
  50 extern int      viewwindowx;
  51 extern int      viewwindowy;
  52 extern int      centerx;
  53 extern int      centery;
  54 extern fixed_t  centerxfrac;
  55 extern fixed_t  centeryfrac;
  56 extern fixed_t  projection;
  57 // proff 11/06/98: Added for high-res
  58 extern fixed_t  projectiony;
  59 extern int      validcount;
  60 extern int      linecount;
  61 extern int      loopcount;
  62
  63 //
  64 // Rendering stats
  65 //
  66
  67 extern int rendered_visplanes, rendered_segs, rendered_vissprites;
  68 extern boolean rendering_stats;
  69
  70 //
  71 // Lighting LUT.
  72 // Used for z-depth cuing per column/row,
  73 //  and other lighting effects (sector ambient, flash).
  74 //
  75
  76 // Lighting constants.
  77
  78 #define LIGHTLEVELS       16
  79 #define LIGHTSEGSHIFT      4
  80 #define MAXLIGHTSCALE     48
  81 #define LIGHTSCALESHIFT   12
  82 #define MAXLIGHTZ        128
  83 #define LIGHTZSHIFT       20
  84
  85 // killough 3/20/98: Allow colormaps to be dynamic (e.g. underwater)
  86 extern lighttable_t *(*scalelight)[MAXLIGHTSCALE];
  87 extern lighttable_t *(*zlight)[MAXLIGHTZ];
  88 extern lighttable_t *fullcolormap;
  89 extern int numcolormaps;    // killough 4/4/98: dynamic number of maps
  90 extern lighttable_t **colormaps;
  91 // killough 3/20/98, 4/4/98: end dynamic colormaps
  92
  93 extern int  extralight;
  94 extern lighttable_t *fixedcolormap;
  95
  96 // Number of diminishing brightness levels.
  97 // There a 0-31, i.e. 32 LUT in the COLORMAP lump.
  98
  99 #define NUMCOLORMAPS  32
 100
 101 //
 102 // Function pointers to switch refresh/drawing functions.
 103 // Used to select shadow mode etc.
 104 //
 105
 106 extern void (*colfunc)(void);
 107
 108 //
 109 // Utility functions.
 110 //
 111
 112 int R_PointOnSide(fixed_t x, fixed_t y, const node_t *node);
 113 int R_PointOnSegSide(fixed_t x, fixed_t y, const seg_t *line);
 114 angle_t R_PointToAngle(fixed_t x, fixed_t y);
 115 angle_t R_PointToAngle2(fixed_t x1, fixed_t y1, fixed_t x2, fixed_t y2);
 116 subsector_t *R_PointInSubsector(fixed_t x, fixed_t y);
 117
 118 //
 119 // REFRESH - the actual rendering functions.
 120 //
 121
 122 void R_RenderPlayerView(player_t *player);   // Called by G_Drawer.
 123 void R_Init(void);                           // Called by startup code.
 124 void R_SetViewSize(int blocks);              // Called by M_Responder.
 125 void R_ExecuteSetViewSize(void);             // cph - called by D_Display to complete a view resize
 126
 127 #endif