/* =========================================================================== Copyright (C) 1997-2006 Id Software, Inc. This file is part of Quake 2 Tools source code. Quake 2 Tools source code 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. Quake 2 Tools source code 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 Quake 2 Tools source code; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA =========================================================================== */ #include "qbsp.h" int c_glfaces; int PortalVisibleSides (portal_t *p) { int fcon, bcon; if (!p->onnode) return 0; // outside fcon = p->nodes[0]->contents; bcon = p->nodes[1]->contents; // same contents never create a face if (fcon == bcon) return 0; // FIXME: is this correct now? if (!fcon) return 1; if (!bcon) return 2; return 0; } void OutputWinding (winding_t *w, FILE *glview) { static int level = 128; vec_t light; int i; fprintf (glview, "%i\n", w->numpoints); level+=28; light = (level&255)/255.0; for (i=0 ; inumpoints ; i++) { fprintf (glview, "%6.3f %6.3f %6.3f %6.3f %6.3f %6.3f\n", w->p[i][0], w->p[i][1], w->p[i][2], light, light, light); } fprintf (glview, "\n"); } /* ============= OutputPortal ============= */ void OutputPortal (portal_t *p, FILE *glview) { winding_t *w; int sides; sides = PortalVisibleSides (p); if (!sides) return; c_glfaces++; w = p->winding; if (sides == 2) // back side w = ReverseWinding (w); OutputWinding (w, glview); if (sides == 2) FreeWinding(w); } /* ============= WriteGLView_r ============= */ void WriteGLView_r (node_t *node, FILE *glview) { portal_t *p, *nextp; if (node->planenum != PLANENUM_LEAF) { WriteGLView_r (node->children[0], glview); WriteGLView_r (node->children[1], glview); return; } // write all the portals for (p=node->portals ; p ; p=nextp) { if (p->nodes[0] == node) { OutputPortal (p, glview); nextp = p->next[0]; } else nextp = p->next[1]; } } /* ============= WriteGLView ============= */ void WriteGLView (tree_t *tree, char *source) { char name[1024]; FILE *glview; c_glfaces = 0; sprintf (name, "%s%s.gl",outbase, source); printf ("Writing %s\n", name); glview = fopen (name, "w"); if (!glview) Error ("Couldn't open %s", name); WriteGLView_r (tree->headnode, glview); fclose (glview); printf ("%5i c_glfaces\n", c_glfaces); }