mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-05 20:50:43 +00:00
dc4cd343b5
as the black polygons (duh:) and not as nice looking as the sky dome, but also not as slow (fps when standing in the normal coridor looking at the sky in start: 26 for skydome, 37 for id skys, 44 for black). Good for when you want to see sky other than black but your card can't handle the fillrate requirements of skydome. I'll clean up the sqrt in there soonish.
173 lines
5 KiB
C
173 lines
5 KiB
C
/*
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r_shared.h
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general refresh-related stuff shared between the refresh and the driver
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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// FIXME: clean up and move into d_iface.h
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#ifndef _R_SHARED_H
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#define _R_SHARED_H
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#include "d_iface.h"
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#define MAX_EFRAGS 640
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#define MAXVERTS 16 // max points in a surface polygon
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#define MAXWORKINGVERTS (MAXVERTS+4) // max points in an intermediate
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// polygon (while processing)
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// !!! if this is changed, it must be changed in d_ifacea.h too !!!
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#define MAXHEIGHT 1024
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#define MAXWIDTH 1280
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#define MAXDIMENSION ((MAXHEIGHT > MAXWIDTH) ? MAXHEIGHT : MAXWIDTH)
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#define SIN_BUFFER_SIZE (MAXDIMENSION+CYCLE)
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#define INFINITE_DISTANCE 0x10000 // distance that's always guaranteed to
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// be farther away than anything in
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// the scene
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//===================================================================
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extern void R_DrawLine (polyvert_t *polyvert0, polyvert_t *polyvert1);
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extern int cachewidth;
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extern byte *cacheblock;
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extern int screenwidth;
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extern float pixelAspect;
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extern int r_drawnpolycount;
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extern struct cvar_s *r_clearcolor;
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extern int sintable[SIN_BUFFER_SIZE];
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extern int intsintable[SIN_BUFFER_SIZE];
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extern byte color_white[4];
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extern byte color_black[4];
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extern vec3_t vup, base_vup;
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extern vec3_t vpn, base_vpn;
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extern vec3_t vright, base_vright;
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extern struct entity_s *currententity;
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#define NUMSTACKEDGES 2400 //2000
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#define MINEDGES NUMSTACKEDGES
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#define NUMSTACKSURFACES 1000
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#define MINSURFACES NUMSTACKSURFACES
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#define MAXSPANS 3000
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// !!! if this is changed, it must be changed in asm_draw.h too !!!
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typedef struct espan_s
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{
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int u, v, count;
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struct espan_s *pnext;
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} espan_t;
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// FIXME: compress, make a union if that will help
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// insubmodel is only 1, flags is fewer than 32, spanstate could be a byte
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typedef struct surf_s
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{
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struct surf_s *next; // active surface stack in r_edge.c
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struct surf_s *prev; // used in r_edge.c for active surf stack
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struct espan_s *spans; // pointer to linked list of spans to draw
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int key; // sorting key (BSP order)
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int last_u; // set during tracing
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int spanstate; // 0 = not in span
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// 1 = in span
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// -1 = in inverted span (end before
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// start)
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int flags; // currentface flags
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void *data; // associated data like msurface_t
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struct entity_s *entity;
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float nearzi; // nearest 1/z on surface, for mipmapping
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qboolean insubmodel;
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float d_ziorigin, d_zistepu, d_zistepv;
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int pad[2]; // to 64 bytes
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} surf_t;
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extern surf_t *surfaces, *surface_p, *surf_max;
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// surfaces are generated in back to front order by the bsp, so if a surf
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// pointer is greater than another one, it should be drawn in front
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// surfaces[1] is the background, and is used as the active surface stack.
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// surfaces[0] is a dummy, because index 0 is used to indicate no surface
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// attached to an edge_t
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//===================================================================
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extern vec3_t sxformaxis[4]; // s axis transformed into viewspace
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extern vec3_t txformaxis[4]; // t axis transformed into viewspac
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extern vec3_t modelorg, base_modelorg;
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extern float xcenter, ycenter;
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extern float xscale, yscale;
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extern float xscaleinv, yscaleinv;
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extern float xscaleshrink, yscaleshrink;
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extern int d_lightstylevalue[256]; // 8.8 frac of base light value
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extern void TransformVector (vec3_t in, vec3_t out);
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extern void SetUpForLineScan(fixed8_t startvertu, fixed8_t startvertv,
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fixed8_t endvertu, fixed8_t endvertv);
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extern int r_skymade;
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extern void R_MakeSky (void);
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extern int solidskytexture;
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extern int alphaskytexture;
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extern int ubasestep, errorterm, erroradjustup, erroradjustdown;
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extern double r_realtime;
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extern double r_frametime;
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// flags in finalvert_t.flags
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#define ALIAS_LEFT_CLIP 0x0001
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#define ALIAS_TOP_CLIP 0x0002
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#define ALIAS_RIGHT_CLIP 0x0004
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#define ALIAS_BOTTOM_CLIP 0x0008
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#define ALIAS_Z_CLIP 0x0010
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// !!! if this is changed, it must be changed in d_ifacea.h too !!!
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#define ALIAS_ONSEAM 0x0020 // also defined in modelgen.h;
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// must be kept in sync
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#define ALIAS_XY_CLIP_MASK 0x000F
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// !!! if this is changed, it must be changed in asm_draw.h too !!!
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typedef struct edge_s
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{
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fixed16_t u;
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fixed16_t u_step;
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struct edge_s *prev, *next;
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unsigned short surfs[2];
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struct edge_s *nextremove;
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float nearzi;
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medge_t *owner;
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} edge_t;
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#endif // _R_SHARED_H
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