forked from KolibriOS/kolibrios
1086 lines
24 KiB
C
1086 lines
24 KiB
C
/*
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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 the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// r_main.c
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#include "quakedef.h"
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#include "r_local.h"
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//define PASSAGES
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void *colormap;
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vec3_t viewlightvec;
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alight_t r_viewlighting = {128, 192, viewlightvec};
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float r_time1;
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int r_numallocatededges;
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qboolean r_drawpolys;
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qboolean r_drawculledpolys;
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qboolean r_worldpolysbacktofront;
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qboolean r_recursiveaffinetriangles = true;
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int r_pixbytes = 1;
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float r_aliasuvscale = 1.0;
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int r_outofsurfaces;
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int r_outofedges;
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qboolean r_dowarp, r_dowarpold, r_viewchanged;
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int numbtofpolys;
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btofpoly_t *pbtofpolys;
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mvertex_t *r_pcurrentvertbase;
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int c_surf;
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int r_maxsurfsseen, r_maxedgesseen, r_cnumsurfs;
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qboolean r_surfsonstack;
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int r_clipflags;
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byte *r_warpbuffer;
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byte *r_stack_start;
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qboolean r_fov_greater_than_90;
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//
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// view origin
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//
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vec3_t vup, base_vup;
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vec3_t vpn, base_vpn;
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vec3_t vright, base_vright;
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vec3_t r_origin;
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//
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// screen size info
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//
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refdef_t r_refdef;
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float xcenter, ycenter;
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float xscale, yscale;
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float xscaleinv, yscaleinv;
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float xscaleshrink, yscaleshrink;
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float aliasxscale, aliasyscale, aliasxcenter, aliasycenter;
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int screenwidth;
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float pixelAspect;
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float screenAspect;
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float verticalFieldOfView;
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float xOrigin, yOrigin;
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mplane_t screenedge[4];
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//
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// refresh flags
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//
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int r_framecount = 1; // so frame counts initialized to 0 don't match
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int r_visframecount;
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int d_spanpixcount;
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int r_polycount;
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int r_drawnpolycount;
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int r_wholepolycount;
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#define VIEWMODNAME_LENGTH 256
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char viewmodname[VIEWMODNAME_LENGTH+1];
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int modcount;
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int *pfrustum_indexes[4];
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int r_frustum_indexes[4*6];
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int reinit_surfcache = 1; // if 1, surface cache is currently empty and
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// must be reinitialized for current cache size
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mleaf_t *r_viewleaf, *r_oldviewleaf;
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texture_t *r_notexture_mip;
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float r_aliastransition, r_resfudge;
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int d_lightstylevalue[256]; // 8.8 fraction of base light value
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float dp_time1, dp_time2, db_time1, db_time2, rw_time1, rw_time2;
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float se_time1, se_time2, de_time1, de_time2, dv_time1, dv_time2;
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void R_MarkLeaves (void);
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cvar_t r_draworder = {"r_draworder","0"};
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cvar_t r_speeds = {"r_speeds","0"};
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cvar_t r_timegraph = {"r_timegraph","0"};
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cvar_t r_graphheight = {"r_graphheight","10"};
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cvar_t r_clearcolor = {"r_clearcolor","2"};
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cvar_t r_waterwarp = {"r_waterwarp","1"};
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cvar_t r_fullbright = {"r_fullbright","0"};
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cvar_t r_drawentities = {"r_drawentities","1"};
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cvar_t r_drawviewmodel = {"r_drawviewmodel","1"};
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cvar_t r_aliasstats = {"r_polymodelstats","0"};
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cvar_t r_dspeeds = {"r_dspeeds","0"};
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cvar_t r_drawflat = {"r_drawflat", "0"};
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cvar_t r_ambient = {"r_ambient", "0"};
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cvar_t r_reportsurfout = {"r_reportsurfout", "0"};
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cvar_t r_maxsurfs = {"r_maxsurfs", "0"};
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cvar_t r_numsurfs = {"r_numsurfs", "0"};
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cvar_t r_reportedgeout = {"r_reportedgeout", "0"};
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cvar_t r_maxedges = {"r_maxedges", "0"};
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cvar_t r_numedges = {"r_numedges", "0"};
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cvar_t r_aliastransbase = {"r_aliastransbase", "200"};
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cvar_t r_aliastransadj = {"r_aliastransadj", "100"};
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extern cvar_t scr_fov;
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void CreatePassages (void);
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void SetVisibilityByPassages (void);
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/*
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==================
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R_InitTextures
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==================
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*/
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void R_InitTextures (void)
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{
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int x,y, m;
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byte *dest;
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// create a simple checkerboard texture for the default
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r_notexture_mip = Hunk_AllocName (sizeof(texture_t) + 16*16+8*8+4*4+2*2, "notexture");
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r_notexture_mip->width = r_notexture_mip->height = 16;
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r_notexture_mip->offsets[0] = sizeof(texture_t);
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r_notexture_mip->offsets[1] = r_notexture_mip->offsets[0] + 16*16;
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r_notexture_mip->offsets[2] = r_notexture_mip->offsets[1] + 8*8;
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r_notexture_mip->offsets[3] = r_notexture_mip->offsets[2] + 4*4;
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for (m=0 ; m<4 ; m++)
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{
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dest = (byte *)r_notexture_mip + r_notexture_mip->offsets[m];
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for (y=0 ; y< (16>>m) ; y++)
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for (x=0 ; x< (16>>m) ; x++)
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{
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if ( (y< (8>>m) ) ^ (x< (8>>m) ) )
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*dest++ = 0;
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else
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*dest++ = 0xff;
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}
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}
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}
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/*
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===============
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R_Init
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===============
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*/
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void R_Init (void)
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{
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int dummy;
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// get stack position so we can guess if we are going to overflow
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r_stack_start = (byte *)&dummy;
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R_InitTurb ();
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Cmd_AddCommand ("timerefresh", R_TimeRefresh_f);
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Cmd_AddCommand ("pointfile", R_ReadPointFile_f);
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Cvar_RegisterVariable (&r_draworder);
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Cvar_RegisterVariable (&r_speeds);
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Cvar_RegisterVariable (&r_timegraph);
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Cvar_RegisterVariable (&r_graphheight);
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Cvar_RegisterVariable (&r_drawflat);
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Cvar_RegisterVariable (&r_ambient);
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Cvar_RegisterVariable (&r_clearcolor);
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Cvar_RegisterVariable (&r_waterwarp);
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Cvar_RegisterVariable (&r_fullbright);
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Cvar_RegisterVariable (&r_drawentities);
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Cvar_RegisterVariable (&r_drawviewmodel);
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Cvar_RegisterVariable (&r_aliasstats);
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Cvar_RegisterVariable (&r_dspeeds);
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Cvar_RegisterVariable (&r_reportsurfout);
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Cvar_RegisterVariable (&r_maxsurfs);
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Cvar_RegisterVariable (&r_numsurfs);
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Cvar_RegisterVariable (&r_reportedgeout);
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Cvar_RegisterVariable (&r_maxedges);
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Cvar_RegisterVariable (&r_numedges);
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Cvar_RegisterVariable (&r_aliastransbase);
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Cvar_RegisterVariable (&r_aliastransadj);
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Cvar_SetValue ("r_maxedges", (float)NUMSTACKEDGES);
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Cvar_SetValue ("r_maxsurfs", (float)NUMSTACKSURFACES);
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view_clipplanes[0].leftedge = true;
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view_clipplanes[1].rightedge = true;
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view_clipplanes[1].leftedge = view_clipplanes[2].leftedge =
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view_clipplanes[3].leftedge = false;
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view_clipplanes[0].rightedge = view_clipplanes[2].rightedge =
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view_clipplanes[3].rightedge = false;
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r_refdef.xOrigin = XCENTERING;
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r_refdef.yOrigin = YCENTERING;
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R_InitParticles ();
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// TODO: collect 386-specific code in one place
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#if id386
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Sys_MakeCodeWriteable ((long)R_EdgeCodeStart,
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(long)R_EdgeCodeEnd - (long)R_EdgeCodeStart);
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#endif // id386
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D_Init ();
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}
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/*
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===============
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R_NewMap
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===============
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*/
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void R_NewMap (void)
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{
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int i;
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// clear out efrags in case the level hasn't been reloaded
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// FIXME: is this one short?
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for (i=0 ; i<cl.worldmodel->numleafs ; i++)
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cl.worldmodel->leafs[i].efrags = NULL;
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r_viewleaf = NULL;
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R_ClearParticles ();
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r_cnumsurfs = r_maxsurfs.value;
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if (r_cnumsurfs <= MINSURFACES)
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r_cnumsurfs = MINSURFACES;
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if (r_cnumsurfs > NUMSTACKSURFACES)
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{
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surfaces = Hunk_AllocName (r_cnumsurfs * sizeof(surf_t), "surfaces");
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surface_p = surfaces;
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surf_max = &surfaces[r_cnumsurfs];
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r_surfsonstack = false;
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// surface 0 doesn't really exist; it's just a dummy because index 0
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// is used to indicate no edge attached to surface
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surfaces--;
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R_SurfacePatch ();
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}
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else
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{
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r_surfsonstack = true;
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}
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r_maxedgesseen = 0;
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r_maxsurfsseen = 0;
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r_numallocatededges = r_maxedges.value;
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if (r_numallocatededges < MINEDGES)
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r_numallocatededges = MINEDGES;
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if (r_numallocatededges <= NUMSTACKEDGES)
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{
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auxedges = NULL;
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}
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else
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{
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auxedges = Hunk_AllocName (r_numallocatededges * sizeof(edge_t),
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"edges");
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}
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r_dowarpold = false;
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r_viewchanged = false;
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#ifdef PASSAGES
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CreatePassages ();
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#endif
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}
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/*
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===============
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R_SetVrect
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===============
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*/
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void R_SetVrect (vrect_t *pvrectin, vrect_t *pvrect, int lineadj)
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{
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int h;
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float size;
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size = scr_viewsize.value > 100 ? 100 : scr_viewsize.value;
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if (cl.intermission)
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{
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size = 100;
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lineadj = 0;
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}
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size /= 100;
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h = pvrectin->height - lineadj;
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pvrect->width = pvrectin->width * size;
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if (pvrect->width < 96)
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{
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size = 96.0 / pvrectin->width;
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pvrect->width = 96; // min for icons
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}
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pvrect->width &= ~7;
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pvrect->height = pvrectin->height * size;
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if (pvrect->height > pvrectin->height - lineadj)
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pvrect->height = pvrectin->height - lineadj;
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pvrect->height &= ~1;
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pvrect->x = (pvrectin->width - pvrect->width)/2;
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pvrect->y = (h - pvrect->height)/2;
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{
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if (lcd_x.value)
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{
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pvrect->y >>= 1;
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pvrect->height >>= 1;
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}
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}
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}
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/*
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===============
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R_ViewChanged
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Called every time the vid structure or r_refdef changes.
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Guaranteed to be called before the first refresh
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===============
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*/
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void R_ViewChanged (vrect_t *pvrect, int lineadj, float aspect)
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{
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int i;
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float res_scale;
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r_viewchanged = true;
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R_SetVrect (pvrect, &r_refdef.vrect, lineadj);
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r_refdef.horizontalFieldOfView = 2.0 * tan (r_refdef.fov_x/360*M_PI);
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r_refdef.fvrectx = (float)r_refdef.vrect.x;
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r_refdef.fvrectx_adj = (float)r_refdef.vrect.x - 0.5;
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r_refdef.vrect_x_adj_shift20 = (r_refdef.vrect.x<<20) + (1<<19) - 1;
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r_refdef.fvrecty = (float)r_refdef.vrect.y;
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r_refdef.fvrecty_adj = (float)r_refdef.vrect.y - 0.5;
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r_refdef.vrectright = r_refdef.vrect.x + r_refdef.vrect.width;
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r_refdef.vrectright_adj_shift20 = (r_refdef.vrectright<<20) + (1<<19) - 1;
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r_refdef.fvrectright = (float)r_refdef.vrectright;
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r_refdef.fvrectright_adj = (float)r_refdef.vrectright - 0.5;
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r_refdef.vrectrightedge = (float)r_refdef.vrectright - 0.99;
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r_refdef.vrectbottom = r_refdef.vrect.y + r_refdef.vrect.height;
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r_refdef.fvrectbottom = (float)r_refdef.vrectbottom;
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r_refdef.fvrectbottom_adj = (float)r_refdef.vrectbottom - 0.5;
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r_refdef.aliasvrect.x = (int)(r_refdef.vrect.x * r_aliasuvscale);
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r_refdef.aliasvrect.y = (int)(r_refdef.vrect.y * r_aliasuvscale);
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r_refdef.aliasvrect.width = (int)(r_refdef.vrect.width * r_aliasuvscale);
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r_refdef.aliasvrect.height = (int)(r_refdef.vrect.height * r_aliasuvscale);
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r_refdef.aliasvrectright = r_refdef.aliasvrect.x +
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r_refdef.aliasvrect.width;
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r_refdef.aliasvrectbottom = r_refdef.aliasvrect.y +
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r_refdef.aliasvrect.height;
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pixelAspect = aspect;
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xOrigin = r_refdef.xOrigin;
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yOrigin = r_refdef.yOrigin;
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screenAspect = r_refdef.vrect.width*pixelAspect /
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r_refdef.vrect.height;
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// 320*200 1.0 pixelAspect = 1.6 screenAspect
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// 320*240 1.0 pixelAspect = 1.3333 screenAspect
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// proper 320*200 pixelAspect = 0.8333333
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verticalFieldOfView = r_refdef.horizontalFieldOfView / screenAspect;
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// values for perspective projection
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// if math were exact, the values would range from 0.5 to to range+0.5
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// hopefully they wll be in the 0.000001 to range+.999999 and truncate
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// the polygon rasterization will never render in the first row or column
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// but will definately render in the [range] row and column, so adjust the
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// buffer origin to get an exact edge to edge fill
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xcenter = ((float)r_refdef.vrect.width * XCENTERING) +
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r_refdef.vrect.x - 0.5;
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aliasxcenter = xcenter * r_aliasuvscale;
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ycenter = ((float)r_refdef.vrect.height * YCENTERING) +
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r_refdef.vrect.y - 0.5;
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aliasycenter = ycenter * r_aliasuvscale;
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xscale = r_refdef.vrect.width / r_refdef.horizontalFieldOfView;
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aliasxscale = xscale * r_aliasuvscale;
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xscaleinv = 1.0 / xscale;
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yscale = xscale * pixelAspect;
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aliasyscale = yscale * r_aliasuvscale;
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yscaleinv = 1.0 / yscale;
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xscaleshrink = (r_refdef.vrect.width-6)/r_refdef.horizontalFieldOfView;
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yscaleshrink = xscaleshrink*pixelAspect;
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// left side clip
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screenedge[0].normal[0] = -1.0 / (xOrigin*r_refdef.horizontalFieldOfView);
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screenedge[0].normal[1] = 0;
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screenedge[0].normal[2] = 1;
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screenedge[0].type = PLANE_ANYZ;
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// right side clip
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screenedge[1].normal[0] =
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1.0 / ((1.0-xOrigin)*r_refdef.horizontalFieldOfView);
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screenedge[1].normal[1] = 0;
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screenedge[1].normal[2] = 1;
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screenedge[1].type = PLANE_ANYZ;
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// top side clip
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screenedge[2].normal[0] = 0;
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screenedge[2].normal[1] = -1.0 / (yOrigin*verticalFieldOfView);
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screenedge[2].normal[2] = 1;
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screenedge[2].type = PLANE_ANYZ;
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// bottom side clip
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screenedge[3].normal[0] = 0;
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screenedge[3].normal[1] = 1.0 / ((1.0-yOrigin)*verticalFieldOfView);
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screenedge[3].normal[2] = 1;
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screenedge[3].type = PLANE_ANYZ;
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for (i=0 ; i<4 ; i++)
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VectorNormalize (screenedge[i].normal);
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res_scale = sqrt ((double)(r_refdef.vrect.width * r_refdef.vrect.height) /
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(320.0 * 152.0)) *
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(2.0 / r_refdef.horizontalFieldOfView);
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r_aliastransition = r_aliastransbase.value * res_scale;
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r_resfudge = r_aliastransadj.value * res_scale;
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if (scr_fov.value <= 90.0)
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r_fov_greater_than_90 = false;
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else
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r_fov_greater_than_90 = true;
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// TODO: collect 386-specific code in one place
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#if id386
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if (r_pixbytes == 1)
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{
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Sys_MakeCodeWriteable ((long)R_Surf8Start,
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(long)R_Surf8End - (long)R_Surf8Start);
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colormap = vid.colormap;
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R_Surf8Patch ();
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}
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else
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{
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Sys_MakeCodeWriteable ((long)R_Surf16Start,
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|
(long)R_Surf16End - (long)R_Surf16Start);
|
|
colormap = vid.colormap16;
|
|
R_Surf16Patch ();
|
|
}
|
|
#endif // id386
|
|
|
|
D_ViewChanged ();
|
|
}
|
|
|
|
|
|
/*
|
|
===============
|
|
R_MarkLeaves
|
|
===============
|
|
*/
|
|
void R_MarkLeaves (void)
|
|
{
|
|
byte *vis;
|
|
mnode_t *node;
|
|
int i;
|
|
|
|
if (r_oldviewleaf == r_viewleaf)
|
|
return;
|
|
|
|
r_visframecount++;
|
|
r_oldviewleaf = r_viewleaf;
|
|
|
|
vis = Mod_LeafPVS (r_viewleaf, cl.worldmodel);
|
|
|
|
for (i=0 ; i<cl.worldmodel->numleafs ; i++)
|
|
{
|
|
if (vis[i>>3] & (1<<(i&7)))
|
|
{
|
|
node = (mnode_t *)&cl.worldmodel->leafs[i+1];
|
|
do
|
|
{
|
|
if (node->visframe == r_visframecount)
|
|
break;
|
|
node->visframe = r_visframecount;
|
|
node = node->parent;
|
|
} while (node);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
R_DrawEntitiesOnList
|
|
=============
|
|
*/
|
|
void R_DrawEntitiesOnList (void)
|
|
{
|
|
int i, j;
|
|
int lnum;
|
|
alight_t lighting;
|
|
// FIXME: remove and do real lighting
|
|
float lightvec[3] = {-1, 0, 0};
|
|
vec3_t dist;
|
|
float add;
|
|
|
|
if (!r_drawentities.value)
|
|
return;
|
|
|
|
for (i=0 ; i<cl_numvisedicts ; i++)
|
|
{
|
|
currententity = cl_visedicts[i];
|
|
|
|
if (currententity == &cl_entities[cl.viewentity])
|
|
continue; // don't draw the player
|
|
|
|
switch (currententity->model->type)
|
|
{
|
|
case mod_sprite:
|
|
VectorCopy (currententity->origin, r_entorigin);
|
|
VectorSubtract (r_origin, r_entorigin, modelorg);
|
|
R_DrawSprite ();
|
|
break;
|
|
|
|
case mod_alias:
|
|
VectorCopy (currententity->origin, r_entorigin);
|
|
VectorSubtract (r_origin, r_entorigin, modelorg);
|
|
|
|
// see if the bounding box lets us trivially reject, also sets
|
|
// trivial accept status
|
|
if (R_AliasCheckBBox ())
|
|
{
|
|
j = R_LightPoint (currententity->origin);
|
|
|
|
lighting.ambientlight = j;
|
|
lighting.shadelight = j;
|
|
|
|
lighting.plightvec = lightvec;
|
|
|
|
for (lnum=0 ; lnum<MAX_DLIGHTS ; lnum++)
|
|
{
|
|
if (cl_dlights[lnum].die >= cl.time)
|
|
{
|
|
VectorSubtract (currententity->origin,
|
|
cl_dlights[lnum].origin,
|
|
dist);
|
|
add = cl_dlights[lnum].radius - Length(dist);
|
|
|
|
if (add > 0)
|
|
lighting.ambientlight += add;
|
|
}
|
|
}
|
|
|
|
// clamp lighting so it doesn't overbright as much
|
|
if (lighting.ambientlight > 128)
|
|
lighting.ambientlight = 128;
|
|
if (lighting.ambientlight + lighting.shadelight > 192)
|
|
lighting.shadelight = 192 - lighting.ambientlight;
|
|
|
|
R_AliasDrawModel (&lighting);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
=============
|
|
R_DrawViewModel
|
|
=============
|
|
*/
|
|
void R_DrawViewModel (void)
|
|
{
|
|
// FIXME: remove and do real lighting
|
|
float lightvec[3] = {-1, 0, 0};
|
|
int j;
|
|
int lnum;
|
|
vec3_t dist;
|
|
float add;
|
|
dlight_t *dl;
|
|
|
|
if (!r_drawviewmodel.value || r_fov_greater_than_90)
|
|
return;
|
|
|
|
if (cl.items & IT_INVISIBILITY)
|
|
return;
|
|
|
|
if (cl.stats[STAT_HEALTH] <= 0)
|
|
return;
|
|
|
|
currententity = &cl.viewent;
|
|
if (!currententity->model)
|
|
return;
|
|
|
|
VectorCopy (currententity->origin, r_entorigin);
|
|
VectorSubtract (r_origin, r_entorigin, modelorg);
|
|
|
|
VectorCopy (vup, viewlightvec);
|
|
VectorInverse (viewlightvec);
|
|
|
|
j = R_LightPoint (currententity->origin);
|
|
|
|
if (j < 24)
|
|
j = 24; // allways give some light on gun
|
|
r_viewlighting.ambientlight = j;
|
|
r_viewlighting.shadelight = j;
|
|
|
|
// add dynamic lights
|
|
for (lnum=0 ; lnum<MAX_DLIGHTS ; lnum++)
|
|
{
|
|
dl = &cl_dlights[lnum];
|
|
if (!dl->radius)
|
|
continue;
|
|
if (!dl->radius)
|
|
continue;
|
|
if (dl->die < cl.time)
|
|
continue;
|
|
|
|
VectorSubtract (currententity->origin, dl->origin, dist);
|
|
add = dl->radius - Length(dist);
|
|
if (add > 0)
|
|
r_viewlighting.ambientlight += add;
|
|
}
|
|
|
|
// clamp lighting so it doesn't overbright as much
|
|
if (r_viewlighting.ambientlight > 128)
|
|
r_viewlighting.ambientlight = 128;
|
|
if (r_viewlighting.ambientlight + r_viewlighting.shadelight > 192)
|
|
r_viewlighting.shadelight = 192 - r_viewlighting.ambientlight;
|
|
|
|
r_viewlighting.plightvec = lightvec;
|
|
|
|
#ifdef QUAKE2
|
|
cl.light_level = r_viewlighting.ambientlight;
|
|
#endif
|
|
|
|
R_AliasDrawModel (&r_viewlighting);
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
R_BmodelCheckBBox
|
|
=============
|
|
*/
|
|
int R_BmodelCheckBBox (model_t *clmodel, float *minmaxs)
|
|
{
|
|
int i, *pindex, clipflags;
|
|
vec3_t acceptpt, rejectpt;
|
|
double d;
|
|
|
|
clipflags = 0;
|
|
|
|
if (currententity->angles[0] || currententity->angles[1]
|
|
|| currententity->angles[2])
|
|
{
|
|
for (i=0 ; i<4 ; i++)
|
|
{
|
|
d = DotProduct (currententity->origin, view_clipplanes[i].normal);
|
|
d -= view_clipplanes[i].dist;
|
|
|
|
if (d <= -clmodel->radius)
|
|
return BMODEL_FULLY_CLIPPED;
|
|
|
|
if (d <= clmodel->radius)
|
|
clipflags |= (1<<i);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i=0 ; i<4 ; i++)
|
|
{
|
|
// generate accept and reject points
|
|
// FIXME: do with fast look-ups or integer tests based on the sign bit
|
|
// of the floating point values
|
|
|
|
pindex = pfrustum_indexes[i];
|
|
|
|
rejectpt[0] = minmaxs[pindex[0]];
|
|
rejectpt[1] = minmaxs[pindex[1]];
|
|
rejectpt[2] = minmaxs[pindex[2]];
|
|
|
|
d = DotProduct (rejectpt, view_clipplanes[i].normal);
|
|
d -= view_clipplanes[i].dist;
|
|
|
|
if (d <= 0)
|
|
return BMODEL_FULLY_CLIPPED;
|
|
|
|
acceptpt[0] = minmaxs[pindex[3+0]];
|
|
acceptpt[1] = minmaxs[pindex[3+1]];
|
|
acceptpt[2] = minmaxs[pindex[3+2]];
|
|
|
|
d = DotProduct (acceptpt, view_clipplanes[i].normal);
|
|
d -= view_clipplanes[i].dist;
|
|
|
|
if (d <= 0)
|
|
clipflags |= (1<<i);
|
|
}
|
|
}
|
|
|
|
return clipflags;
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
R_DrawBEntitiesOnList
|
|
=============
|
|
*/
|
|
void R_DrawBEntitiesOnList (void)
|
|
{
|
|
int i, j, k, clipflags;
|
|
vec3_t oldorigin;
|
|
model_t *clmodel;
|
|
float minmaxs[6];
|
|
|
|
if (!r_drawentities.value)
|
|
return;
|
|
|
|
VectorCopy (modelorg, oldorigin);
|
|
insubmodel = true;
|
|
r_dlightframecount = r_framecount;
|
|
|
|
for (i=0 ; i<cl_numvisedicts ; i++)
|
|
{
|
|
currententity = cl_visedicts[i];
|
|
|
|
switch (currententity->model->type)
|
|
{
|
|
case mod_brush:
|
|
|
|
clmodel = currententity->model;
|
|
|
|
// see if the bounding box lets us trivially reject, also sets
|
|
// trivial accept status
|
|
for (j=0 ; j<3 ; j++)
|
|
{
|
|
minmaxs[j] = currententity->origin[j] +
|
|
clmodel->mins[j];
|
|
minmaxs[3+j] = currententity->origin[j] +
|
|
clmodel->maxs[j];
|
|
}
|
|
|
|
clipflags = R_BmodelCheckBBox (clmodel, minmaxs);
|
|
|
|
if (clipflags != BMODEL_FULLY_CLIPPED)
|
|
{
|
|
VectorCopy (currententity->origin, r_entorigin);
|
|
VectorSubtract (r_origin, r_entorigin, modelorg);
|
|
// FIXME: is this needed?
|
|
VectorCopy (modelorg, r_worldmodelorg);
|
|
|
|
r_pcurrentvertbase = clmodel->vertexes;
|
|
|
|
// FIXME: stop transforming twice
|
|
R_RotateBmodel ();
|
|
|
|
// calculate dynamic lighting for bmodel if it's not an
|
|
// instanced model
|
|
if (clmodel->firstmodelsurface != 0)
|
|
{
|
|
for (k=0 ; k<MAX_DLIGHTS ; k++)
|
|
{
|
|
if ((cl_dlights[k].die < cl.time) ||
|
|
(!cl_dlights[k].radius))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
R_MarkLights (&cl_dlights[k], 1<<k,
|
|
clmodel->nodes + clmodel->hulls[0].firstclipnode);
|
|
}
|
|
}
|
|
|
|
// if the driver wants polygons, deliver those. Z-buffering is on
|
|
// at this point, so no clipping to the world tree is needed, just
|
|
// frustum clipping
|
|
if (r_drawpolys | r_drawculledpolys)
|
|
{
|
|
R_ZDrawSubmodelPolys (clmodel);
|
|
}
|
|
else
|
|
{
|
|
r_pefragtopnode = NULL;
|
|
|
|
for (j=0 ; j<3 ; j++)
|
|
{
|
|
r_emins[j] = minmaxs[j];
|
|
r_emaxs[j] = minmaxs[3+j];
|
|
}
|
|
|
|
R_SplitEntityOnNode2 (cl.worldmodel->nodes);
|
|
|
|
if (r_pefragtopnode)
|
|
{
|
|
currententity->topnode = r_pefragtopnode;
|
|
|
|
if (r_pefragtopnode->contents >= 0)
|
|
{
|
|
// not a leaf; has to be clipped to the world BSP
|
|
r_clipflags = clipflags;
|
|
R_DrawSolidClippedSubmodelPolygons (clmodel);
|
|
}
|
|
else
|
|
{
|
|
// falls entirely in one leaf, so we just put all the
|
|
// edges in the edge list and let 1/z sorting handle
|
|
// drawing order
|
|
R_DrawSubmodelPolygons (clmodel, clipflags);
|
|
}
|
|
|
|
currententity->topnode = NULL;
|
|
}
|
|
}
|
|
|
|
// put back world rotation and frustum clipping
|
|
// FIXME: R_RotateBmodel should just work off base_vxx
|
|
VectorCopy (base_vpn, vpn);
|
|
VectorCopy (base_vup, vup);
|
|
VectorCopy (base_vright, vright);
|
|
VectorCopy (base_modelorg, modelorg);
|
|
VectorCopy (oldorigin, modelorg);
|
|
R_TransformFrustum ();
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
insubmodel = false;
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
R_EdgeDrawing
|
|
================
|
|
*/
|
|
void R_EdgeDrawing (void)
|
|
{
|
|
edge_t ledges[NUMSTACKEDGES +
|
|
((CACHE_SIZE - 1) / sizeof(edge_t)) + 1];
|
|
surf_t lsurfs[NUMSTACKSURFACES +
|
|
((CACHE_SIZE - 1) / sizeof(surf_t)) + 1];
|
|
|
|
if (auxedges)
|
|
{
|
|
r_edges = auxedges;
|
|
}
|
|
else
|
|
{
|
|
r_edges = (edge_t *)
|
|
(((long)&ledges[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
|
|
}
|
|
|
|
if (r_surfsonstack)
|
|
{
|
|
surfaces = (surf_t *)
|
|
(((long)&lsurfs[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
|
|
surf_max = &surfaces[r_cnumsurfs];
|
|
// surface 0 doesn't really exist; it's just a dummy because index 0
|
|
// is used to indicate no edge attached to surface
|
|
surfaces--;
|
|
R_SurfacePatch ();
|
|
}
|
|
|
|
R_BeginEdgeFrame ();
|
|
|
|
if (r_dspeeds.value)
|
|
{
|
|
rw_time1 = Sys_FloatTime ();
|
|
}
|
|
|
|
R_RenderWorld ();
|
|
|
|
if (r_drawculledpolys)
|
|
R_ScanEdges ();
|
|
|
|
// only the world can be drawn back to front with no z reads or compares, just
|
|
// z writes, so have the driver turn z compares on now
|
|
D_TurnZOn ();
|
|
|
|
if (r_dspeeds.value)
|
|
{
|
|
rw_time2 = Sys_FloatTime ();
|
|
db_time1 = rw_time2;
|
|
}
|
|
|
|
R_DrawBEntitiesOnList ();
|
|
|
|
if (r_dspeeds.value)
|
|
{
|
|
db_time2 = Sys_FloatTime ();
|
|
se_time1 = db_time2;
|
|
}
|
|
|
|
if (!r_dspeeds.value)
|
|
{
|
|
VID_UnlockBuffer ();
|
|
S_ExtraUpdate (); // don't let sound get messed up if going slow
|
|
VID_LockBuffer ();
|
|
}
|
|
|
|
if (!(r_drawpolys | r_drawculledpolys))
|
|
R_ScanEdges ();
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
R_RenderView
|
|
|
|
r_refdef must be set before the first call
|
|
================
|
|
*/
|
|
void R_RenderView_ (void)
|
|
{
|
|
byte warpbuffer[WARP_WIDTH * WARP_HEIGHT];
|
|
|
|
r_warpbuffer = warpbuffer;
|
|
|
|
if (r_timegraph.value || r_speeds.value || r_dspeeds.value)
|
|
r_time1 = Sys_FloatTime ();
|
|
|
|
R_SetupFrame ();
|
|
|
|
#ifdef PASSAGES
|
|
SetVisibilityByPassages ();
|
|
#else
|
|
R_MarkLeaves (); // done here so we know if we're in water
|
|
#endif
|
|
|
|
// make FDIV fast. This reduces timing precision after we've been running for a
|
|
// while, so we don't do it globally. This also sets chop mode, and we do it
|
|
// here so that setup stuff like the refresh area calculations match what's
|
|
// done in screen.c
|
|
Sys_LowFPPrecision ();
|
|
|
|
if (!cl_entities[0].model || !cl.worldmodel)
|
|
Sys_Error ("R_RenderView: NULL worldmodel");
|
|
|
|
if (!r_dspeeds.value)
|
|
{
|
|
VID_UnlockBuffer ();
|
|
S_ExtraUpdate (); // don't let sound get messed up if going slow
|
|
VID_LockBuffer ();
|
|
}
|
|
|
|
R_EdgeDrawing ();
|
|
|
|
if (!r_dspeeds.value)
|
|
{
|
|
VID_UnlockBuffer ();
|
|
S_ExtraUpdate (); // don't let sound get messed up if going slow
|
|
VID_LockBuffer ();
|
|
}
|
|
|
|
if (r_dspeeds.value)
|
|
{
|
|
se_time2 = Sys_FloatTime ();
|
|
de_time1 = se_time2;
|
|
}
|
|
|
|
R_DrawEntitiesOnList ();
|
|
|
|
if (r_dspeeds.value)
|
|
{
|
|
de_time2 = Sys_FloatTime ();
|
|
dv_time1 = de_time2;
|
|
}
|
|
|
|
R_DrawViewModel ();
|
|
|
|
if (r_dspeeds.value)
|
|
{
|
|
dv_time2 = Sys_FloatTime ();
|
|
dp_time1 = Sys_FloatTime ();
|
|
}
|
|
|
|
R_DrawParticles ();
|
|
|
|
if (r_dspeeds.value)
|
|
dp_time2 = Sys_FloatTime ();
|
|
|
|
if (r_dowarp)
|
|
D_WarpScreen ();
|
|
|
|
V_SetContentsColor (r_viewleaf->contents);
|
|
|
|
if (r_timegraph.value)
|
|
R_TimeGraph ();
|
|
|
|
if (r_aliasstats.value)
|
|
R_PrintAliasStats ();
|
|
|
|
if (r_speeds.value)
|
|
R_PrintTimes ();
|
|
|
|
if (r_dspeeds.value)
|
|
R_PrintDSpeeds ();
|
|
|
|
if (r_reportsurfout.value && r_outofsurfaces)
|
|
Con_Printf ("Short %d surfaces\n", r_outofsurfaces);
|
|
|
|
if (r_reportedgeout.value && r_outofedges)
|
|
Con_Printf ("Short roughly %d edges\n", r_outofedges * 2 / 3);
|
|
|
|
// back to high floating-point precision
|
|
Sys_HighFPPrecision ();
|
|
}
|
|
|
|
void R_RenderView (void)
|
|
{
|
|
int dummy;
|
|
int delta;
|
|
|
|
delta = (byte *)&dummy - r_stack_start;
|
|
if (delta < -10000 || delta > 10000)
|
|
Sys_Error ("R_RenderView: called without enough stack");
|
|
|
|
if ( Hunk_LowMark() & 3 )
|
|
Sys_Error ("Hunk is missaligned");
|
|
|
|
if ( (long)(&dummy) & 3 )
|
|
Sys_Error ("Stack is missaligned");
|
|
|
|
if ( (long)(&r_warpbuffer) & 3 )
|
|
Sys_Error ("Globals are missaligned");
|
|
|
|
R_RenderView_ ();
|
|
}
|
|
|
|
/*
|
|
================
|
|
R_InitTurb
|
|
================
|
|
*/
|
|
void R_InitTurb (void)
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{
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int i;
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for (i=0 ; i<(SIN_BUFFER_SIZE) ; i++)
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{
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sintable[i] = AMP + sin(i*3.14159*2/CYCLE)*AMP;
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intsintable[i] = AMP2 + sin(i*3.14159*2/CYCLE)*AMP2; // AMP2, not 20
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}
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}
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