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Diffstat (limited to 'app/core/gimpboundary.h')
| -rw-r--r-- | app/core/gimpboundary.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/app/core/gimpboundary.h b/app/core/gimpboundary.h new file mode 100644 index 0000000..1e05eec --- /dev/null +++ b/app/core/gimpboundary.h @@ -0,0 +1,68 @@ +/* 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__ */ |