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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __GIMP_BOUNDARY_H__
#define __GIMP_BOUNDARY_H__
/* half intensity for mask */
#define GIMP_BOUNDARY_HALF_WAY 0.5
typedef enum
{
GIMP_BOUNDARY_WITHIN_BOUNDS,
GIMP_BOUNDARY_IGNORE_BOUNDS
} GimpBoundaryType;
struct _GimpBoundSeg
{
gint x1;
gint y1;
gint x2;
gint y2;
guint open : 1;
guint visited : 1;
};
GimpBoundSeg * gimp_boundary_find (GeglBuffer *buffer,
const GeglRectangle *region,
const Babl *format,
GimpBoundaryType type,
gint x1,
gint y1,
gint x2,
gint y2,
gfloat threshold,
gint *num_segs);
GimpBoundSeg * gimp_boundary_sort (const GimpBoundSeg *segs,
gint num_segs,
gint *num_groups);
GimpBoundSeg * gimp_boundary_simplify (GimpBoundSeg *sorted_segs,
gint num_groups,
gint *num_segs);
/* offsets in-place */
void gimp_boundary_offset (GimpBoundSeg *segs,
gint num_segs,
gint off_x,
gint off_y);
#endif /* __GIMP_BOUNDARY_H__ */
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