ref: b8fdee42392c7a7692bb60483cc906dfa3acf62d
dir: /QW/client/r_shared.h/
/* Copyright (C) 1996-1997 Id Software, Inc. 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. */ #ifndef GLQUAKE // r_shared.h: general refresh-related stuff shared between the refresh and the // driver // FIXME: clean up and move into d_iface.h #ifndef _R_SHARED_H_ #define _R_SHARED_H_ #define MAXVERTS 16 // max points in a surface polygon #define MAXWORKINGVERTS (MAXVERTS+4) // max points in an intermediate // polygon (while processing) // !!! if this is changed, it must be changed in d_ifacea.h too !!! #define MAXHEIGHT 1024 #define MAXWIDTH 1280 #define INFINITE_DISTANCE 0x10000 // distance that's always guaranteed to // be farther away than anything in // the scene //=================================================================== extern void R_DrawLine (polyvert_t *polyvert0, polyvert_t *polyvert1); extern int cachewidth; extern pixel_t *cacheblock; extern int screenwidth; extern float pixelAspect; extern int r_drawnpolycount; extern cvar_t r_clearcolor; extern int sintable[1280]; extern int intsintable[1280]; extern vec3_t vup, base_vup; extern vec3_t vpn, base_vpn; extern vec3_t vright, base_vright; extern entity_t *currententity; #define NUMSTACKEDGES 2000 #define MINEDGES NUMSTACKEDGES #define NUMSTACKSURFACES 1000 #define MINSURFACES NUMSTACKSURFACES #define MAXSPANS 3000 // !!! if this is changed, it must be changed in asm_draw.h too !!! typedef struct espan_s { int u, v, count; struct espan_s *pnext; } espan_t; // FIXME: compress, make a union if that will help // insubmodel is only 1, flags is fewer than 32, spanstate could be a byte typedef struct surf_s { struct surf_s *next; // active surface stack in r_edge.c struct surf_s *prev; // used in r_edge.c for active surf stack struct espan_s *spans; // pointer to linked list of spans to draw int key; // sorting key (BSP order) int last_u; // set during tracing int spanstate; // 0 = not in span // 1 = in span // -1 = in inverted span (end before // start) int flags; // currentface flags void *data; // associated data like msurface_t entity_t *entity; float nearzi; // nearest 1/z on surface, for mipmapping qboolean insubmodel; float d_ziorigin, d_zistepu, d_zistepv; int pad[2]; // to 64 bytes } surf_t; extern surf_t *surfaces, *surface_p, *surf_max; // surfaces are generated in back to front order by the bsp, so if a surf // pointer is greater than another one, it should be drawn in front // surfaces[1] is the background, and is used as the active surface stack. // surfaces[0] is a dummy, because index 0 is used to indicate no surface // attached to an edge_t //=================================================================== extern vec3_t sxformaxis[4]; // s axis transformed into viewspace extern vec3_t txformaxis[4]; // t axis transformed into viewspac extern vec3_t modelorg, base_modelorg; extern float xcenter, ycenter; extern float xscale, yscale; extern float xscaleinv, yscaleinv; extern float xscaleshrink, yscaleshrink; extern int d_lightstylevalue[256]; // 8.8 frac of base light value extern void TransformVector (vec3_t in, vec3_t out); extern void SetUpForLineScan(fixed8_t startvertu, fixed8_t startvertv, fixed8_t endvertu, fixed8_t endvertv); extern int r_skymade; extern void R_MakeSky (void); extern int ubasestep, errorterm, erroradjustup, erroradjustdown; // flags in finalvert_t.flags #define ALIAS_LEFT_CLIP 0x0001 #define ALIAS_TOP_CLIP 0x0002 #define ALIAS_RIGHT_CLIP 0x0004 #define ALIAS_BOTTOM_CLIP 0x0008 #define ALIAS_Z_CLIP 0x0010 // !!! if this is changed, it must be changed in d_ifacea.h too !!! #define ALIAS_ONSEAM 0x0020 // also defined in modelgen.h; // must be kept in sync #define ALIAS_XY_CLIP_MASK 0x000F // !!! if this is changed, it must be changed in asm_draw.h too !!! typedef struct edge_s { fixed16_t u; fixed16_t u_step; struct edge_s *prev, *next; unsigned short surfs[2]; struct edge_s *nextremove; float nearzi; medge_t *owner; } edge_t; #endif // _R_SHARED_H_ #endif // GLQUAKE