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Diffstat (limited to 'apps/plugins/sdl/progs/quake/r_shared.h')
| -rw-r--r-- | apps/plugins/sdl/progs/quake/r_shared.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/r_shared.h b/apps/plugins/sdl/progs/quake/r_shared.h new file mode 100644 index 0000000..f2a6db3 --- /dev/null +++ b/apps/plugins/sdl/progs/quake/r_shared.h @@ -0,0 +1,157 @@ +/* +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 MAXDIMENSION ((MAXHEIGHT > MAXWIDTH) ? MAXHEIGHT : MAXWIDTH) + +#define SIN_BUFFER_SIZE (MAXDIMENSION+CYCLE) + +#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[SIN_BUFFER_SIZE]; +extern int intsintable[SIN_BUFFER_SIZE]; + +extern vec3_t vup, base_vup; +extern vec3_t vpn, base_vpn; +extern vec3_t vright, base_vright; +extern entity_t *currententity; + +#define NUMSTACKEDGES 2400 +#define MINEDGES NUMSTACKEDGES +#define NUMSTACKSURFACES 800 +#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 |