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Diffstat (limited to 'src/doom/r_main.h')
| -rw-r--r-- | src/doom/r_main.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/doom/r_main.h b/src/doom/r_main.h new file mode 100644 index 00000000..edc5dbbb --- /dev/null +++ b/src/doom/r_main.h @@ -0,0 +1,170 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// Copyright(C) 1993-1996 Id Software, Inc. +// Copyright(C) 2005 Simon Howard +// +// 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: +// System specific interface stuff. +// +//----------------------------------------------------------------------------- + + +#ifndef __R_MAIN__ +#define __R_MAIN__ + +#include "d_player.h" +#include "r_data.h" + + + + +// +// 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; + +extern int validcount; + +extern int linecount; +extern int loopcount; + + +// +// Lighting LUT. +// Used for z-depth cuing per column/row, +// and other lighting effects (sector ambient, flash). +// + +// Lighting constants. +// Now why not 32 levels here? +#define LIGHTLEVELS 16 +#define LIGHTSEGSHIFT 4 + +#define MAXLIGHTSCALE 48 +#define LIGHTSCALESHIFT 12 +#define MAXLIGHTZ 128 +#define LIGHTZSHIFT 20 + +extern lighttable_t* scalelight[LIGHTLEVELS][MAXLIGHTSCALE]; +extern lighttable_t* scalelightfixed[MAXLIGHTSCALE]; +extern lighttable_t* zlight[LIGHTLEVELS][MAXLIGHTZ]; + +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 + + +// Blocky/low detail mode. +//B remove this? +// 0 = high, 1 = low +extern int detailshift; + + +// +// Function pointers to switch refresh/drawing functions. +// Used to select shadow mode etc. +// +extern void (*colfunc) (void); +extern void (*transcolfunc) (void); +extern void (*basecolfunc) (void); +extern void (*fuzzcolfunc) (void); +// No shadow effects on floors. +extern void (*spanfunc) (void); + + +// +// Utility functions. +int +R_PointOnSide +( fixed_t x, + fixed_t y, + node_t* node ); + +int +R_PointOnSegSide +( fixed_t x, + fixed_t y, + 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 ); + +fixed_t +R_PointToDist +( fixed_t x, + fixed_t y ); + + +fixed_t R_ScaleFromGlobalAngle (angle_t visangle); + +subsector_t* +R_PointInSubsector +( fixed_t x, + fixed_t y ); + +void +R_AddPointToBox +( int x, + int y, + fixed_t* box ); + + + +// +// REFRESH - the actual rendering functions. +// + +// Called by G_Drawer. +void R_RenderPlayerView (player_t *player); + +// Called by startup code. +void R_Init (void); + +// Called by M_Responder. +void R_SetViewSize (int blocks, int detail); + +#endif |