57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#if !defined (__PIKA_COLOR_H_INSIDE__) && !defined (PIKA_COLOR_COMPILATION)
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#error "Only <libpikacolor/pikacolor.h> can be included directly."
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#endif
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#ifndef __PIKA_BILINEAR_H__
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#define __PIKA_BILINEAR_H__
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G_BEGIN_DECLS
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/* For information look into the C source or the html documentation */
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/* bilinear interpolation functions taken from LibGCK */
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gdouble pika_bilinear (gdouble x,
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gdouble y,
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gdouble *values);
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guchar pika_bilinear_8 (gdouble x,
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gdouble y,
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guchar *values);
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guint16 pika_bilinear_16 (gdouble x,
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gdouble y,
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guint16 *values);
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guint32 pika_bilinear_32 (gdouble x,
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gdouble y,
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guint32 *values);
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PikaRGB pika_bilinear_rgb (gdouble x,
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gdouble y,
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PikaRGB *values);
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PikaRGB pika_bilinear_rgba (gdouble x,
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gdouble y,
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PikaRGB *values);
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G_END_DECLS
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#endif /* __PIKA_BILINEAR_H__ */
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