apps/plugins/doom/r_draw.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  *      System specific interface stuff.
  29  *
  30  *-----------------------------------------------------------------------------*/
  31
  32 #ifndef __R_DRAW__
  33 #define __R_DRAW__
  34
  35 #include "r_defs.h"
  36
  37 #ifdef __GNUG__
  38 #pragma interface
  39 #endif
  40
  41 extern lighttable_t *dc_colormap;
  42 extern int      dc_x;
  43 extern int      dc_yl;
  44 extern int      dc_yh;
  45 extern fixed_t  dc_iscale;
  46 extern fixed_t  dc_texturemid;
  47 extern int      dc_texheight;    // killough
  48
  49 // first pixel in a column
  50 extern const byte     *dc_source;
  51
  52 // The span blitting interface.
  53 // Hook in assembler or system specific BLT here.
  54
  55 void R_DrawColumn(void) ICODE_ATTR;
  56 void R_DrawTLColumn(void) ICODE_ATTR;      // drawing translucent textures // phares
  57 void R_DrawFuzzColumn(void) ICODE_ATTR;    // The Spectre/Invisibility effect.
  58
  59 // Draw with color translation tables, for player sprite rendering,
  60 //  Green/Red/Blue/Indigo shirts.
  61
  62 void R_DrawTranslatedColumn(void);
  63
  64 void R_VideoErase(unsigned ofs, int count);
  65
  66 extern lighttable_t *ds_colormap;
  67
  68 extern int     ds_y;
  69 extern int     ds_x1;
  70 extern int     ds_x2;
  71 extern fixed_t ds_xfrac;
  72 extern fixed_t ds_yfrac;
  73 extern fixed_t ds_xstep;
  74 extern fixed_t ds_ystep;
  75
  76 // start of a 64*64 tile image
  77 extern byte *ds_source;
  78 extern byte playernumtotrans[MAXPLAYERS]; // CPhipps - what translation table for what player
  79 extern byte *translationtables;
  80 extern byte *dc_translation;
  81
  82 // Span blitting for rows, floor/ceiling. No Spectre effect needed.
  83 void R_DrawSpan(void) ICODE_ATTR;
  84
  85 void R_InitBuffer(int width, int height);
  86
  87 // Initialize color translation tables, for player rendering etc.
  88 void R_InitTranslationTables(void);
  89
  90 // Rendering function.
  91 void R_FillBackScreen(void);
  92
  93 // If the view size is not full screen, draws a border around it.
  94 void R_DrawViewBorder(void);
  95
  96 extern const byte *tranmap;         // translucency filter maps 256x256  // phares
  97 extern const byte *main_tranmap;    // killough 4/11/98
  98
  99 #endif