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/* Emacs style mode select -*- C++ -*-
*-----------------------------------------------------------------------------
*
*
* PrBoom a Doom port merged with LxDoom and LSDLDoom
* based on BOOM, a modified and improved DOOM engine
* Copyright (C) 1999 by
* id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
* Copyright (C) 1999-2000 by
* Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* DESCRIPTION:
* Renderer main interface.
*
*-----------------------------------------------------------------------------*/
#ifndef __R_MAIN__
#define __R_MAIN__
#include "d_player.h"
#include "r_data.h"
#ifdef __GNUG__
#pragma interface
#endif
//
// POV related.
//
extern fixed_t viewcos;
extern fixed_t viewsin;
extern int viewwidth;
extern int viewheight;
extern int viewwindowx;
extern int viewwindowy;
extern int centerx;
extern int centery;
extern fixed_t centerxfrac;
extern fixed_t centeryfrac;
extern fixed_t projection;
// proff 11/06/98: Added for high-res
extern fixed_t projectiony;
extern int validcount;
extern int linecount;
extern int loopcount;
//
// Rendering stats
//
extern int rendered_visplanes, rendered_segs, rendered_vissprites;
extern boolean rendering_stats;
//
// Lighting LUT.
// Used for z-depth cuing per column/row,
// and other lighting effects (sector ambient, flash).
//
// Lighting constants.
#define LIGHTLEVELS 16
#define LIGHTSEGSHIFT 4
#define MAXLIGHTSCALE 48
#define LIGHTSCALESHIFT 12
#define MAXLIGHTZ 128
#define LIGHTZSHIFT 20
// killough 3/20/98: Allow colormaps to be dynamic (e.g. underwater)
extern lighttable_t *(*scalelight)[MAXLIGHTSCALE];
extern lighttable_t *(*zlight)[MAXLIGHTZ];
extern lighttable_t *fullcolormap;
extern int numcolormaps; // killough 4/4/98: dynamic number of maps
extern lighttable_t **colormaps;
// killough 3/20/98, 4/4/98: end dynamic colormaps
extern int extralight;
extern lighttable_t *fixedcolormap;
// Number of diminishing brightness levels.
// There a 0-31, i.e. 32 LUT in the COLORMAP lump.
#define NUMCOLORMAPS 32
//
// Function pointers to switch refresh/drawing functions.
// Used to select shadow mode etc.
//
extern void (*colfunc)(void);
//
// Utility functions.
//
int R_PointOnSide(fixed_t x, fixed_t y, const node_t *node);
int R_PointOnSegSide(fixed_t x, fixed_t y, const seg_t *line);
angle_t R_PointToAngle(fixed_t x, fixed_t y);
angle_t R_PointToAngle2(fixed_t x1, fixed_t y1, fixed_t x2, fixed_t y2);
subsector_t *R_PointInSubsector(fixed_t x, fixed_t y);
//
// REFRESH - the actual rendering functions.
//
void R_RenderPlayerView(player_t *player); // Called by G_Drawer.
void R_Init(void); // Called by startup code.
void R_SetViewSize(int blocks); // Called by M_Responder.
void R_ExecuteSetViewSize(void); // cph - called by D_Display to complete a view resize
#endif
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