mirror of https://github.com/GNOME/gimp.git
54 lines
2.0 KiB
C
54 lines
2.0 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __PIXEL_SURROUND_H__
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#define __PIXEL_SURROUND_H__
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/* PixelSurround describes a (read-only)
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* region around a pixel in a tile manager
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*/
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typedef enum
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{
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PIXEL_SURROUND_SMEAR,
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PIXEL_SURROUND_BACKGROUND
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} PixelSurroundMode;
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PixelSurround * pixel_surround_new (TileManager *tiles,
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gint width,
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gint height,
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PixelSurroundMode mode);
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void pixel_surround_set_bg (PixelSurround *surround,
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const guchar *bg);
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/* return a pointer to a buffer which contains all the surrounding pixels
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* strategy: if we are in the middle of a tile, use the tile storage
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* otherwise just copy into our own malloced buffer and return that
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*/
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const guchar * pixel_surround_lock (PixelSurround *surround,
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gint x,
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gint y,
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gint *rowstride);
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void pixel_surround_release (PixelSurround *surround);
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void pixel_surround_destroy (PixelSurround *surround);
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#endif /* __PIXEL_SURROUND_H__ */
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