src/r_draw.h

   1 // Emacs style mode select   -*- C++ -*-
   2 //-----------------------------------------------------------------------------
   3 //
   4 // Copyright(C) 1993-1996 Id Software, Inc.
   5 // Copyright(C) 2005 Simon Howard
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License
   9 // as published by the Free Software Foundation; either version 2
  10 // of the License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20 // 02111-1307, USA.
  21 //
  22 // DESCRIPTION:
  23 //      System specific interface stuff.
  24 //
  25 //-----------------------------------------------------------------------------
  26
  27
  28 #ifndef __R_DRAW__
  29 #define __R_DRAW__
  30
  31
  32
  33
  34 extern lighttable_t*    dc_colormap;
  35 extern int              dc_x;
  36 extern int              dc_yl;
  37 extern int              dc_yh;
  38 extern fixed_t          dc_iscale;
  39 extern fixed_t          dc_texturemid;
  40
  41 // first pixel in a column
  42 extern byte*            dc_source;
  43
  44
  45 // The span blitting interface.
  46 // Hook in assembler or system specific BLT
  47 //  here.
  48 void    R_DrawColumn (void);
  49 void    R_DrawColumnLow (void);
  50
  51 // The Spectre/Invisibility effect.
  52 void    R_DrawFuzzColumn (void);
  53 void    R_DrawFuzzColumnLow (void);
  54
  55 // Draw with color translation tables,
  56 //  for player sprite rendering,
  57 //  Green/Red/Blue/Indigo shirts.
  58 void    R_DrawTranslatedColumn (void);
  59 void    R_DrawTranslatedColumnLow (void);
  60
  61 void
  62 R_VideoErase
  63 ( unsigned      ofs,
  64   int           count );
  65
  66 extern int              ds_y;
  67 extern int              ds_x1;
  68 extern int              ds_x2;
  69
  70 extern lighttable_t*    ds_colormap;
  71
  72 extern fixed_t          ds_xfrac;
  73 extern fixed_t          ds_yfrac;
  74 extern fixed_t          ds_xstep;
  75 extern fixed_t          ds_ystep;
  76
  77 // start of a 64*64 tile image
  78 extern byte*            ds_source;
  79
  80 extern byte*            translationtables;
  81 extern byte*            dc_translation;
  82
  83
  84 // Span blitting for rows, floor/ceiling.
  85 // No Sepctre effect needed.
  86 void    R_DrawSpan (void);
  87
  88 // Low resolution mode, 160x200?
  89 void    R_DrawSpanLow (void);
  90
  91
  92 void
  93 R_InitBuffer
  94 ( int           width,
  95   int           height );
  96
  97
  98 // Initialize color translation tables,
  99 //  for player rendering etc.
 100 void    R_InitTranslationTables (void);
 101
 102
 103
 104 // Rendering function.
 105 void R_FillBackScreen (void);
 106
 107 // If the view size is not full screen, draws a border around it.
 108 void R_DrawViewBorder (void);
 109
 110
 111
 112 #endif