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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id: r_draw.h,v 1.7 2001/08/06 23:57:09 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_draw.h,v $
// Revision 1.7 2001/08/06 23:57:09 stroggonmeth
// Removed portal code, improved 3D floors in hardware mode.
//
// Revision 1.6 2001/03/13 22:14:20 stroggonmeth
// Long time no commit. 3D floors, FraggleScript, portals, ect.
//
// Revision 1.5 2001/02/24 13:35:21 bpereira
// no message
//
// Revision 1.4 2000/11/09 17:56:20 stroggonmeth
// Hopefully fixed a few bugs and did a few optimizations.
//
// Revision 1.3 2000/11/02 17:50:09 stroggonmeth
// Big 3Dfloors & FraggleScript commit!!
//
// 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:
// low level span/column drawer functions.
//
//-----------------------------------------------------------------------------
#ifndef __R_DRAW__
#define __R_DRAW__
#include "r_defs.h"
// -------------------------------
// COMMON STUFF FOR 8bpp AND 16bpp
// -------------------------------
extern byte* ylookup[MAXVIDHEIGHT];
extern byte* ylookup1[MAXVIDHEIGHT];
extern byte* ylookup2[MAXVIDHEIGHT];
extern int columnofs[MAXVIDWIDTH];
#ifdef HORIZONTALDRAW
//Fab 17-06-98
extern byte* yhlookup[MAXVIDWIDTH];
extern int hcolumnofs[MAXVIDHEIGHT];
#endif
// -------------------------
// COLUMN DRAWING CODE STUFF
// -------------------------
extern lighttable_t* dc_colormap;
extern lighttable_t* dc_wcolormap; //added:24-02-98:WATER!
extern int dc_x;
extern int dc_yl;
extern int dc_yh;
extern int dc_yw; //added:24-02-98:WATER!
extern fixed_t dc_iscale;
extern fixed_t dc_texturemid;
extern byte* dc_source; // first pixel in a column
// translucency stuff here
extern byte* transtables; // translucency tables, should be (*transtables)[5][256][256]
extern byte* dc_transmap;
// translation stuff here
extern byte* translationtables;
extern byte* dc_translation;
extern struct r_lightlist_s* dc_lightlist;
extern int dc_numlights;
extern int dc_maxlights;
//Fix TUTIFRUTI
extern int dc_texheight;
// -----------------------
// SPAN DRAWING CODE STUFF
// -----------------------
extern int ds_y;
extern int ds_x1;
extern int ds_x2;
extern lighttable_t* ds_colormap;
extern fixed_t ds_xfrac;
extern fixed_t ds_yfrac;
extern fixed_t ds_xstep;
extern fixed_t ds_ystep;
extern byte* ds_source; // start of a 64*64 tile image
extern byte* ds_transmap;
// viewborder patches lump numbers
#define BRDR_T 0
#define BRDR_B 1
#define BRDR_L 2
#define BRDR_R 3
#define BRDR_TL 4
#define BRDR_TR 5
#define BRDR_BL 6
#define BRDR_BR 7
extern int viewborderlump[8];
// ------------------------------------------------
// r_draw.c COMMON ROUTINES FOR BOTH 8bpp and 16bpp
// ------------------------------------------------
//added:26-01-98: called by SCR_Recalc() when video mode changes
void R_RecalcFuzzOffsets (void);
// Initialize color translation tables, for player rendering etc.
void R_InitTranslationTables (void);
void R_InitViewBuffer ( int width,
int height );
void R_InitViewBorder (void);
void R_VideoErase ( unsigned ofs,
int count );
// Rendering function.
void R_FillBackScreen (void);
// If the view size is not full screen, draws a border around it.
void R_DrawViewBorder (void);
// -----------------
// 8bpp DRAWING CODE
// -----------------
#ifdef HORIZONTALDRAW
//Fab 17-06-98
void R_DrawHColumn_8 (void);
#endif
void ASMCALL R_DrawColumn_8 (void);
void ASMCALL R_DrawSkyColumn_8 (void);
void ASMCALL R_DrawShadeColumn_8 (void); //smokie test..
void ASMCALL R_DrawFuzzColumn_8 (void);
void ASMCALL R_DrawTranslucentColumn_8 (void);
void ASMCALL R_DrawTranslatedColumn_8 (void);
void ASMCALL R_DrawSpan_8 (void);
void R_DrawTranslucentSpan_8 (void);
void R_DrawFogSpan_8 (void);
void R_DrawFogColumn_8 (void); //SoM: Test
void R_DrawColumnShadowed_8 (void);
void R_DrawPortalColumn_8 (void);
// ------------------
// 16bpp DRAWING CODE
// ------------------
void ASMCALL R_DrawColumn_16 (void);
void ASMCALL R_DrawSkyColumn_16 (void);
void ASMCALL R_DrawFuzzColumn_16 (void);
void ASMCALL R_DrawTranslucentColumn_16 (void);
void ASMCALL R_DrawTranslatedColumn_16 (void);
void ASMCALL R_DrawSpan_16 (void);
// =========================================================================
#endif // __R_DRAW__
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