mirror of https://github.com/GNOME/gimp.git
61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
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*
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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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*
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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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*
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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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*/
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#ifndef SCAN_CONVERT_H
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#define SCAN_CONVERT_H
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struct _ScanConvertPoint
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{
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gdouble x;
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gdouble y;
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};
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typedef struct ScanConverterPrivate ScanConverter;
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/* Create a new scan conversion context. Set "antialias" to 1 for no
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* supersampling, or the amount to supersample by otherwise.
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*/
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ScanConverter * scan_converter_new (guint width,
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guint height,
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guint antialias);
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void scan_converter_free (ScanConverter *scan_converter);
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/* Add "npoints" from "pointlist" to the polygon currently being
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* described by "scan_converter".
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*/
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void scan_converter_add_points (ScanConverter *scan_converter,
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guint npoints,
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ScanConvertPoint *pointlist);
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/* Scan convert the polygon described by the list of points passed to
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* scan_convert_add_points, and return a channel with a bits set if
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* they fall within the polygon defined. The polygon is filled
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* according to the even-odd rule. The polygon is closed by
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* joining the final point to the initial point.
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*/
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GimpChannel * scan_converter_to_channel (ScanConverter *scan_converter,
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GimpImage *gimage);
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#endif /* SCAN_CONVERT_H */
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