73 lines
2.4 KiB
C
73 lines
2.4 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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* gimpoperationsubtractmode.c
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* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
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* 2012 Ville Sokk <ville.sokk@gmail.com>
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* 2017 Øyvind Kolås <pippin@gimp.org>
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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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#include "config.h"
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#include <gegl-plugin.h>
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#include "../operations-types.h"
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#include "gimpoperationsubtract.h"
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#include "gimpblendcomposite.h"
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G_DEFINE_TYPE (GimpOperationSubtract, gimp_operation_subtract,
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GIMP_TYPE_OPERATION_LAYER_MODE)
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static void
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gimp_operation_subtract_class_init (GimpOperationSubtractClass *klass)
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{
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GeglOperationClass *operation_class;
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GeglOperationPointComposer3Class *point_class;
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operation_class = GEGL_OPERATION_CLASS (klass);
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point_class = GEGL_OPERATION_POINT_COMPOSER3_CLASS (klass);
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gegl_operation_class_set_keys (operation_class,
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"name", "gimp:subtract",
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"description", "GIMP subtract mode operation",
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NULL);
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point_class->process = gimp_operation_subtract_process;
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}
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static void
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gimp_operation_subtract_init (GimpOperationSubtract *self)
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{
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}
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gboolean
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gimp_operation_subtract_process (GeglOperation *op,
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void *in,
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void *layer,
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void *mask,
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void *out,
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glong samples,
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const GeglRectangle *roi,
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gint level)
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{
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gimp_composite_blend (op, in, layer, mask, out, samples,
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blendfun_subtract);
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return TRUE;
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}
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