111 lines
2.6 KiB
C
111 lines
2.6 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 modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(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. 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 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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See file, 'COPYING', for details.
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$Id$
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*/
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#ifndef surfaces_h
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#define surfaces_h
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#include "QF/bspfile.h"
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/** \defgroup qfbsp_surface Surface Functions
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\ingroup qfbsp
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*/
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//@{
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struct visfacet_s;
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struct node_s;
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struct surface_s;
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typedef struct edgeface_s {
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struct visfacet_s *f[2];
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} edgeface_t;
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extern int c_cornerverts;
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extern int c_tryedges;
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extern edgeface_t *edgefaces;
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extern int firstmodeledge;
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extern int firstmodelface;
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/** Allocate a new face.
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Increases \c c_activefaces by one.
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\return Pointer to the new face.
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*/
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face_t *AllocFace (void);
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/** Free a face.
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Only the first face will be freed. If the face is linked to another face,
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that face will have to be freed seperately.
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Reduces \c c_activefaces by one.
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\param f The face to free.
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*/
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void FreeFace (face_t *f);
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/** Allocate a new surface.
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Increases \c c_activesurfaces by one.
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\return Pointer to the new surface.
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*/
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surface_t *AllocSurface (void);
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/** Free a surface.
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Only the first surface will be freed. If the surface is linked to another
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surface, that surface will have to be freed seperately.
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Reduces \c c_activefaces by one.
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\param s The face to free.
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*/
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void FreeSurface (surface_t *s);
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/** Split any faces that are too big.
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If the face is > options.subdivide_size in either texture direction,
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carve off a valid sized piece and insert the remainder in the next link.
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\param f The face to subdivide.
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\param prevptr The address of the pointer to this face. For nice linked
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list manipulation.
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*/
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void SubdivideFace (struct visfacet_s *f, struct visfacet_s **prevptr);
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/** Free the current node tree and return a new chain of the surfaces that
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have inside faces.
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*/
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struct surface_s *GatherNodeFaces (struct node_s *headnode);
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/** Give edges to all the faces in the bsp tree.
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\param headnode The root of the bsp tree.
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*/
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void MakeFaceEdges (struct node_s *headnode);
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//@}
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#endif//surfaces_h
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