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71 lines
1.9 KiB
71 lines
1.9 KiB
13 years ago
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/* Libart_LGPL - library of basic graphic primitives
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* Copyright (C) 2001 Raph Levien
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __ART_SVP_INTERSECT_H__
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#define __ART_SVP_INTERSECT_H__
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/* The funky new SVP intersector. */
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#ifdef LIBART_COMPILATION
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#include "art_svp.h"
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#else
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#include <libart_lgpl/art_svp.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#ifndef ART_WIND_RULE_DEFINED
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#define ART_WIND_RULE_DEFINED
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typedef enum {
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ART_WIND_RULE_NONZERO,
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ART_WIND_RULE_INTERSECT,
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ART_WIND_RULE_ODDEVEN,
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ART_WIND_RULE_POSITIVE
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} ArtWindRule;
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#endif
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typedef struct _ArtSvpWriter ArtSvpWriter;
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struct _ArtSvpWriter {
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int (*add_segment) (ArtSvpWriter *self, int wind_left, int delta_wind,
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double x, double y);
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void (*add_point) (ArtSvpWriter *self, int seg_id, double x, double y);
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void (*close_segment) (ArtSvpWriter *self, int seg_id);
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};
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ArtSvpWriter *
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art_svp_writer_rewind_new (ArtWindRule rule);
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ArtSVP *
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art_svp_writer_rewind_reap (ArtSvpWriter *self);
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int
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art_svp_seg_compare (const void *s1, const void *s2);
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void
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art_svp_intersector (const ArtSVP *in, ArtSvpWriter *out);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __ART_SVP_INTERSECT_H__ */
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