124 lines
4.9 KiB
C
124 lines
4.9 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikaoperationcurves.c
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* Copyright (C) 2007 Michael Natterer <mitch@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 <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <cairo.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libpikamath/pikamath.h"
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#include "operations-types.h"
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#include "core/pikacurve.h"
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#include "core/pikacurve-map.h"
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#include "pikacurvesconfig.h"
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#include "pikaoperationcurves.h"
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#include "pika-intl.h"
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static gboolean pika_operation_curves_process (GeglOperation *operation,
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void *in_buf,
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void *out_buf,
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glong samples,
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const GeglRectangle *roi,
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gint level);
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G_DEFINE_TYPE (PikaOperationCurves, pika_operation_curves,
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PIKA_TYPE_OPERATION_POINT_FILTER)
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#define parent_class pika_operation_curves_parent_class
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static void
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pika_operation_curves_class_init (PikaOperationCurvesClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
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GeglOperationPointFilterClass *point_class = GEGL_OPERATION_POINT_FILTER_CLASS (klass);
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object_class->set_property = pika_operation_point_filter_set_property;
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object_class->get_property = pika_operation_point_filter_get_property;
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gegl_operation_class_set_keys (operation_class,
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"name", "pika:curves",
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"categories", "color",
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"description", _("Adjust color curves"),
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NULL);
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point_class->process = pika_operation_curves_process;
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g_object_class_install_property (object_class,
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PIKA_OPERATION_POINT_FILTER_PROP_TRC,
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g_param_spec_enum ("trc",
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"Linear/Percptual",
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"What TRC to operate on",
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PIKA_TYPE_TRC_TYPE,
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PIKA_TRC_NON_LINEAR,
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G_PARAM_READWRITE));
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g_object_class_install_property (object_class,
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PIKA_OPERATION_POINT_FILTER_PROP_CONFIG,
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g_param_spec_object ("config",
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"Config",
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"The config object",
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PIKA_TYPE_CURVES_CONFIG,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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}
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static void
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pika_operation_curves_init (PikaOperationCurves *self)
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{
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}
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static gboolean
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pika_operation_curves_process (GeglOperation *operation,
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void *in_buf,
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void *out_buf,
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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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PikaOperationPointFilter *point = PIKA_OPERATION_POINT_FILTER (operation);
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PikaCurvesConfig *config = PIKA_CURVES_CONFIG (point->config);
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gfloat *src = in_buf;
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gfloat *dest = out_buf;
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if (! config)
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return FALSE;
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pika_curve_map_pixels (config->curve[0],
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config->curve[1],
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config->curve[2],
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config->curve[3],
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config->curve[4], src, dest, samples);
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return TRUE;
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}
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