160 lines
6.0 KiB
C
160 lines
6.0 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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* gimpoperationhistogramsink.c
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* Copyright (C) 2012 Øyvind Kolås
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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.h>
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#include "gimp-gegl-types.h"
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#include "gimpoperationhistogramsink.h"
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enum
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{
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PROP_0,
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PROP_INPUT,
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PROP_AUX
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};
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static void gimp_operation_histogram_sink_get_property (GObject *gobject,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gimp_operation_histogram_sink_set_property (GObject *gobject,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static gboolean gimp_operation_histogram_sink_process (GeglOperation *operation,
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GeglOperationContext *context,
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const gchar *output_prop,
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const GeglRectangle *result,
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gint level);
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static void gimp_operation_histogram_sink_attach (GeglOperation *operation);
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static GeglRectangle gimp_operation_histogram_sink_get_required_for_output (GeglOperation *self,
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const gchar *input_pad,
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const GeglRectangle *roi);
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G_DEFINE_TYPE (GimpOperationHistogramSink, gimp_operation_histogram_sink,
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GEGL_TYPE_OPERATION_SINK)
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static void
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gimp_operation_histogram_sink_class_init (GimpOperationHistogramSinkClass *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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object_class->set_property = gimp_operation_histogram_sink_set_property;
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object_class->get_property = gimp_operation_histogram_sink_get_property;
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operation_class->attach = gimp_operation_histogram_sink_attach;
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operation_class->get_required_for_output = gimp_operation_histogram_sink_get_required_for_output;
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operation_class->process = gimp_operation_histogram_sink_process;
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g_object_class_install_property (object_class, PROP_AUX,
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g_param_spec_object ("aux",
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"Aux",
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"Auxiliary image buffer input pad.",
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GEGL_TYPE_BUFFER,
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G_PARAM_READWRITE |
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GEGL_PARAM_PAD_INPUT));
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}
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static void
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gimp_operation_histogram_sink_init (GimpOperationHistogramSink *self)
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{
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}
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static void
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gimp_operation_histogram_sink_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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}
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static void
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gimp_operation_histogram_sink_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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}
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static void
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gimp_operation_histogram_sink_attach (GeglOperation *self)
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{
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GeglOperation *operation = GEGL_OPERATION (self);
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GObjectClass *object_class = G_OBJECT_GET_CLASS (self);
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gegl_operation_create_pad (operation,
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g_object_class_find_property (object_class,
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"aux"));
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}
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static GeglRectangle
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gimp_operation_histogram_sink_get_required_for_output (GeglOperation *self,
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const gchar *input_pad,
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const GeglRectangle *roi)
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{
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/* dunno what to do here, make a wild guess */
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return *roi;
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}
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static gboolean
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gimp_operation_histogram_sink_process (GeglOperation *operation,
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GeglOperationContext *context,
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const gchar *output_prop,
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const GeglRectangle *result,
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gint level)
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{
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GeglBuffer *input;
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GeglBuffer *aux;
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if (strcmp (output_prop, "output"))
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{
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g_warning ("requested processing of %s pad on a sink", output_prop);
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return FALSE;
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}
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input = gegl_operation_context_get_source (context, "input");
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aux = gegl_operation_context_get_source (context, "aux");
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if (input)
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{
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if (aux)
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{
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/* do hist with mask */
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}
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else
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{
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/* without */
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}
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return TRUE;
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}
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g_warning ("received NULL input");
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return FALSE;
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}
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