mirror of https://github.com/ioquake/ioq3.git
150 lines
2.8 KiB
C
150 lines
2.8 KiB
C
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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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 Foobar; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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#include "qbsp.h"
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int c_glfaces;
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int PortalVisibleSides (portal_t *p)
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{
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int fcon, bcon;
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if (!p->onnode)
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return 0; // outside
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fcon = p->nodes[0]->contents;
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bcon = p->nodes[1]->contents;
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// same contents never create a face
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if (fcon == bcon)
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return 0;
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// FIXME: is this correct now?
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if (!fcon)
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return 1;
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if (!bcon)
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return 2;
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return 0;
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}
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void OutputWinding (winding_t *w, FILE *glview)
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{
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static int level = 128;
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vec_t light;
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int i;
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fprintf (glview, "%i\n", w->numpoints);
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level+=28;
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light = (level&255)/255.0;
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for (i=0 ; i<w->numpoints ; i++)
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{
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fprintf (glview, "%6.3f %6.3f %6.3f %6.3f %6.3f %6.3f\n",
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w->p[i][0],
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w->p[i][1],
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w->p[i][2],
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light,
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light,
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light);
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}
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fprintf (glview, "\n");
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}
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/*
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=============
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OutputPortal
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=============
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*/
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void OutputPortal (portal_t *p, FILE *glview)
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{
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winding_t *w;
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int sides;
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sides = PortalVisibleSides (p);
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if (!sides)
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return;
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c_glfaces++;
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w = p->winding;
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if (sides == 2) // back side
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w = ReverseWinding (w);
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OutputWinding (w, glview);
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if (sides == 2)
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FreeWinding(w);
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}
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/*
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=============
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WriteGLView_r
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=============
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*/
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void WriteGLView_r (node_t *node, FILE *glview)
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{
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portal_t *p, *nextp;
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if (node->planenum != PLANENUM_LEAF)
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{
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WriteGLView_r (node->children[0], glview);
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WriteGLView_r (node->children[1], glview);
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return;
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}
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// write all the portals
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for (p=node->portals ; p ; p=nextp)
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{
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if (p->nodes[0] == node)
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{
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OutputPortal (p, glview);
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nextp = p->next[0];
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}
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else
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nextp = p->next[1];
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}
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}
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/*
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=============
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WriteGLView
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=============
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*/
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void WriteGLView (tree_t *tree, char *source)
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{
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char name[1024];
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FILE *glview;
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c_glfaces = 0;
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sprintf (name, "%s%s.gl",outbase, source);
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printf ("Writing %s\n", name);
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glview = fopen (name, "w");
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if (!glview)
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Error ("Couldn't open %s", name);
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WriteGLView_r (tree->headnode, glview);
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fclose (glview);
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printf ("%5i c_glfaces\n", c_glfaces);
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}
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