mirror of https://github.com/GNOME/gimp.git
131 lines
3.3 KiB
C
131 lines
3.3 KiB
C
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/* LIBGIMP - The GIMP 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 2 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <glib.h>
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#include "libgimpmath/gimpmath.h"
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#include "gimpcolortypes.h"
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#include "gimpcmyk.h"
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/* CMYK functions */
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void
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gimp_cmyk_set (GimpCMYK *cmyk,
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gdouble c,
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gdouble m,
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gdouble y,
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gdouble k)
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{
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g_return_if_fail (cmyk != NULL);
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cmyk->c = c;
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cmyk->m = m;
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cmyk->y = y;
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cmyk->k = k;
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}
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void
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gimp_cmyk_set_uchar (GimpCMYK *cmyk,
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guchar c,
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guchar m,
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guchar y,
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guchar k)
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{
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g_return_if_fail (cmyk != NULL);
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cmyk->c = (gdouble) c / 255.0;
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cmyk->m = (gdouble) m / 255.0;
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cmyk->y = (gdouble) y / 255.0;
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cmyk->k = (gdouble) k / 255.0;
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}
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void
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gimp_cmyk_get_uchar (const GimpCMYK *cmyk,
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guchar *c,
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guchar *m,
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guchar *y,
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guchar *k)
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{
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g_return_if_fail (cmyk != NULL);
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if (c) *c = ROUND (CLAMP (cmyk->c, 0.0, 1.0) * 255.0);
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if (m) *m = ROUND (CLAMP (cmyk->m, 0.0, 1.0) * 255.0);
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if (y) *y = ROUND (CLAMP (cmyk->y, 0.0, 1.0) * 255.0);
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if (k) *k = ROUND (CLAMP (cmyk->k, 0.0, 1.0) * 255.0);
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}
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/* CMYKA functions */
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void
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gimp_cmyka_set (GimpCMYK *cmyka,
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gdouble c,
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gdouble m,
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gdouble y,
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gdouble k,
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gdouble a)
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{
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g_return_if_fail (cmyka != NULL);
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cmyka->c = c;
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cmyka->m = m;
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cmyka->y = y;
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cmyka->k = k;
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cmyka->a = a;
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}
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void
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gimp_cmyka_set_uchar (GimpCMYK *cmyka,
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guchar c,
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guchar m,
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guchar y,
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guchar k,
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guchar a)
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{
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g_return_if_fail (cmyka != NULL);
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cmyka->c = (gdouble) c / 255.0;
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cmyka->m = (gdouble) m / 255.0;
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cmyka->y = (gdouble) y / 255.0;
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cmyka->k = (gdouble) k / 255.0;
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cmyka->a = (gdouble) a / 255.0;
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}
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void
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gimp_cmyka_get_uchar (const GimpCMYK *cmyka,
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guchar *c,
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guchar *m,
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guchar *y,
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guchar *k,
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guchar *a)
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{
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g_return_if_fail (cmyka != NULL);
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if (c) *c = ROUND (CLAMP (cmyka->c, 0.0, 1.0) * 255.0);
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if (m) *m = ROUND (CLAMP (cmyka->m, 0.0, 1.0) * 255.0);
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if (y) *y = ROUND (CLAMP (cmyka->y, 0.0, 1.0) * 255.0);
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if (k) *k = ROUND (CLAMP (cmyka->k, 0.0, 1.0) * 255.0);
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if (a) *a = ROUND (CLAMP (cmyka->a, 0.0, 1.0) * 255.0);
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}
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