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