| 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 |