mirror of https://github.com/GNOME/gimp.git
44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/* The GIMP -- an 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 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 __CURVES_H__
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#define __CURVES_H__
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#define CURVES_NUM_POINTS 17
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struct _Curves
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{
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GimpCurveType curve_type[5];
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gint points[5][CURVES_NUM_POINTS][2];
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guchar curve[5][256];
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};
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void curves_init (Curves *curves);
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void curves_channel_reset (Curves *curves,
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GimpHistogramChannel channel);
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void curves_calculate_curve (Curves *curves,
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GimpHistogramChannel channel);
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gfloat curves_lut_func (Curves *curves,
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gint nchannels,
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gint channel,
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gfloat value);
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#endif /* __CURVES_H__ */
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