Games/Doom/r_main.h

   1 // Emacs style mode select   -*- C++ -*-
   2 //-----------------------------------------------------------------------------
   3 //
   4 // $Id$
   5 //
   6 // Copyright (C) 1993-1996 by id Software, Inc.
   7 //
   8 // This source is available for distribution and/or modification
   9 // only under the terms of the DOOM Source Code License as
  10 // published by id Software. All rights reserved.
  11 //
  12 // The source is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
  15 // for more details.
  16 //
  17 // DESCRIPTION:
  18 //      System specific interface stuff.
  19 //
  20 //-----------------------------------------------------------------------------
  21
  22
  23 #ifndef __R_MAIN__
  24 #define __R_MAIN__
  25
  26 #include "d_player.h"
  27 #include "r_data.h"
  28
  29
  30 #ifdef __GNUG__
  31 #pragma interface
  32 #endif
  33
  34
  35 //
  36 // POV related.
  37 //
  38 extern fixed_t          viewcos;
  39 extern fixed_t          viewsin;
  40
  41 extern int              viewwidth;
  42 extern int              viewheight;
  43 extern int              viewwindowx;
  44 extern int              viewwindowy;
  45
  46
  47
  48 extern int              centerx;
  49 extern int              centery;
  50
  51 extern fixed_t          centerxfrac;
  52 extern fixed_t          centeryfrac;
  53 extern fixed_t          projection;
  54
  55 extern int              validcount;
  56
  57 extern int              linecount;
  58 extern int              loopcount;
  59
  60
  61 //
  62 // Lighting LUT.
  63 // Used for z-depth cuing per column/row,
  64 //  and other lighting effects (sector ambient, flash).
  65 //
  66
  67 // Lighting constants.
  68 // Now why not 32 levels here?
  69 #define LIGHTLEVELS             16
  70 #define LIGHTSEGSHIFT            4
  71
  72 #define MAXLIGHTSCALE           48
  73 #define LIGHTSCALESHIFT         12
  74 #define MAXLIGHTZ              128
  75 #define LIGHTZSHIFT             20
  76
  77 extern FAR lighttable_t*        scalelight[LIGHTLEVELS][MAXLIGHTSCALE];
  78 extern lighttable_t*    scalelightfixed[MAXLIGHTSCALE];
  79 extern FAR lighttable_t*        zlight[LIGHTLEVELS][MAXLIGHTZ];
  80
  81 extern int              extralight;
  82 extern lighttable_t*    fixedcolormap;
  83
  84
  85 // Number of diminishing brightness levels.
  86 // There a 0-31, i.e. 32 LUT in the COLORMAP lump.
  87 #define NUMCOLORMAPS            32
  88
  89
  90 // Blocky/low detail mode.
  91 //B remove this?
  92 //  0 = high, 1 = low
  93 extern  int             detailshift;
  94
  95
  96 //
  97 // Function pointers to switch refresh/drawing functions.
  98 // Used to select shadow mode etc.
  99 //
 100 extern void             (*colfunc) (void);
 101 extern void             (*basecolfunc) (void);
 102 extern void             (*fuzzcolfunc) (void);
 103 // No shadow effects on floors.
 104 extern void             (*spanfunc) (void);
 105 extern void             (*transcolfunc) (void);
 106
 107
 108 //
 109 // Utility functions.
 110 int
 111 R_PointOnSide
 112 ( fixed_t       x,
 113   fixed_t       y,
 114   node_t*       node );
 115
 116 int
 117 R_PointOnSegSide
 118 ( fixed_t       x,
 119   fixed_t       y,
 120   seg_t*        line );
 121
 122 angle_t
 123 R_PointToAngle
 124 ( fixed_t       x,
 125   fixed_t       y );
 126
 127 angle_t
 128 R_PointToAngle2
 129 ( fixed_t       x1,
 130   fixed_t       y1,
 131   fixed_t       x2,
 132   fixed_t       y2 );
 133
 134 fixed_t
 135 R_PointToDist
 136 ( fixed_t       x,
 137   fixed_t       y );
 138
 139
 140 fixed_t R_ScaleFromGlobalAngle (angle_t visangle);
 141
 142 subsector_t*
 143 R_PointInSubsector
 144 ( fixed_t       x,
 145   fixed_t       y );
 146
 147 void
 148 R_AddPointToBox
 149 ( int           x,
 150   int           y,
 151   fixed_t*      box );
 152
 153
 154
 155 //
 156 // REFRESH - the actual rendering functions.
 157 //
 158
 159 // Called by G_Drawer.
 160 void R_RenderPlayerView (player_t *player);
 161
 162 // Called by startup code.
 163 void R_Init (void);
 164
 165 // Called by M_Responder.
 166 void R_SetViewSize (int blocks, int detail);
 167
 168 #endif
 169 //-----------------------------------------------------------------------------
 170 //
 171 // $Log$
 172 // Revision 1.1  2000/02/29 18:21:06  stegerg
 173 // Doom port based on ADoomPPC. Read README.AROS!
 174 //
 175 //
 176 //-----------------------------------------------------------------------------