1 files changed, 131 insertions, 0 deletions
diff --git a/app/operations/gimpoperationpointfilter.c b/app/operations/gimpoperationpointfilter.c
new file mode 100644
index 0000000..b9bfa1d
--- /dev/null
+++ b/app/operations/gimpoperationpointfilter.c
@@ -0,0 +1,131 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpoperationpointfilter.c
+ * Copyright (C) 2007 Michael Natterer <mitch@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+
+#include "operations-types.h"
+
+#include "gimpoperationpointfilter.h"
+
+
+static void   gimp_operation_point_filter_finalize (GObject       *object);
+static void   gimp_operation_point_filter_prepare  (GeglOperation *operation);
+
+
+G_DEFINE_ABSTRACT_TYPE (GimpOperationPointFilter, gimp_operation_point_filter,
+                        GEGL_TYPE_OPERATION_POINT_FILTER)
+
+#define parent_class gimp_operation_point_filter_parent_class
+
+
+static void
+gimp_operation_point_filter_class_init (GimpOperationPointFilterClass *klass)
+{
+  GObjectClass        *object_class = G_OBJECT_CLASS (klass);
+  GeglOperationClass  *operation_class = GEGL_OPERATION_CLASS (klass);
+
+  object_class->finalize = gimp_operation_point_filter_finalize;
+
+  operation_class->prepare = gimp_operation_point_filter_prepare;
+}
+
+static void
+gimp_operation_point_filter_init (GimpOperationPointFilter *self)
+{
+}
+
+static void
+gimp_operation_point_filter_finalize (GObject *object)
+{
+  GimpOperationPointFilter *self = GIMP_OPERATION_POINT_FILTER (object);
+
+  g_clear_object (&self->config);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+void
+gimp_operation_point_filter_get_property (GObject    *object,
+                                          guint       property_id,
+                                          GValue     *value,
+                                          GParamSpec *pspec)
+{
+  GimpOperationPointFilter *self = GIMP_OPERATION_POINT_FILTER (object);
+
+  switch (property_id)
+    {
+    case GIMP_OPERATION_POINT_FILTER_PROP_LINEAR:
+      g_value_set_boolean (value, self->linear);
+      break;
+
+    case GIMP_OPERATION_POINT_FILTER_PROP_CONFIG:
+      g_value_set_object (value, self->config);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+void
+gimp_operation_point_filter_set_property (GObject      *object,
+                                          guint         property_id,
+                                          const GValue *value,
+                                          GParamSpec   *pspec)
+{
+  GimpOperationPointFilter *self = GIMP_OPERATION_POINT_FILTER (object);
+
+  switch (property_id)
+    {
+    case GIMP_OPERATION_POINT_FILTER_PROP_LINEAR:
+      self->linear = g_value_get_boolean (value);
+      break;
+
+    case GIMP_OPERATION_POINT_FILTER_PROP_CONFIG:
+      if (self->config)
+        g_object_unref (self->config);
+      self->config = g_value_dup_object (value);
+      break;
+
+   default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_operation_point_filter_prepare (GeglOperation *operation)
+{
+  GimpOperationPointFilter *self = GIMP_OPERATION_POINT_FILTER (operation);
+  const Babl               *space = gegl_operation_get_source_space (operation,
+                                                                     "input");
+  const Babl               *format;
+
+  if (self->linear)
+    format = babl_format_with_space ("RGBA float", space);
+  else
+    format = babl_format_with_space ("R'G'B'A float", space);
+
+  gegl_operation_set_format (operation, "input",  format);
+  gegl_operation_set_format (operation, "output", format);
+}