Adding upstream version 2.10.22.upstream/2.10.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 189 insertions, 0 deletions

diff --git a/app/operations/gimpoperationscalarmultiply.c b/app/operations/gimpoperationscalarmultiply.c
new file mode 100644
index 0000000..6416300
--- /dev/null
+++ b/app/operations/gimpoperationscalarmultiply.c
@@ -0,0 +1,189 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpoperationscalarmultiply.c
+ * Copyright (C) 2014 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 "gimpoperationscalarmultiply.h"
+
+
+enum
+{
+  PROP_0,
+  PROP_N_COMPONENTS,
+  PROP_FACTOR
+};
+
+
+static void       gimp_operation_scalar_multiply_get_property (GObject             *object,
+                                                               guint                property_id,
+                                                               GValue              *value,
+                                                               GParamSpec          *pspec);
+static void       gimp_operation_scalar_multiply_set_property (GObject             *object,
+                                                               guint                property_id,
+                                                               const GValue        *value,
+                                                               GParamSpec          *pspec);
+
+static void       gimp_operation_scalar_multiply_prepare      (GeglOperation       *operation);
+static gboolean   gimp_operation_scalar_multiply_process      (GeglOperation       *operation,
+                                                               void                *in_buf,
+                                                               void                *out_buf,
+                                                               glong                samples,
+                                                               const GeglRectangle *roi,
+                                                               gint                 level);
+
+
+G_DEFINE_TYPE (GimpOperationScalarMultiply, gimp_operation_scalar_multiply,
+               GEGL_TYPE_OPERATION_POINT_FILTER)
+
+#define parent_class gimp_operation_scalar_multiply_parent_class
+
+
+static void
+gimp_operation_scalar_multiply_class_init (GimpOperationScalarMultiplyClass *klass)
+{
+  GObjectClass                  *object_class    = G_OBJECT_CLASS (klass);
+  GeglOperationClass            *operation_class = GEGL_OPERATION_CLASS (klass);
+  GeglOperationPointFilterClass *point_class     = GEGL_OPERATION_POINT_FILTER_CLASS (klass);
+
+  object_class->set_property = gimp_operation_scalar_multiply_set_property;
+  object_class->get_property = gimp_operation_scalar_multiply_get_property;
+
+  gegl_operation_class_set_keys (operation_class,
+                                 "name",        "gimp:scalar-multiply",
+                                 "categories",  "gimp",
+                                 "description", "Multiply all floats in a buffer by a factor",
+                                 NULL);
+
+  operation_class->prepare = gimp_operation_scalar_multiply_prepare;
+
+  point_class->process     = gimp_operation_scalar_multiply_process;
+
+  g_object_class_install_property (object_class, PROP_N_COMPONENTS,
+                                   g_param_spec_int ("n-components",
+                                                     "N Components",
+                                                     "Number of components in the input/output vectors",
+                                                     1, 16, 2,
+                                                     G_PARAM_READWRITE |
+                                                     G_PARAM_CONSTRUCT));
+
+  g_object_class_install_property (object_class, PROP_FACTOR,
+                                   g_param_spec_double ("factor",
+                                                        "Factor",
+                                                        "The scalar factor",
+                                                        G_MINFLOAT, G_MAXFLOAT,
+                                                        1.0,
+                                                        G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT));
+}
+
+static void
+gimp_operation_scalar_multiply_init (GimpOperationScalarMultiply *self)
+{
+}
+
+static void
+gimp_operation_scalar_multiply_get_property (GObject    *object,
+                                             guint       property_id,
+                                             GValue     *value,
+                                             GParamSpec *pspec)
+{
+  GimpOperationScalarMultiply *self = GIMP_OPERATION_SCALAR_MULTIPLY (object);
+
+  switch (property_id)
+    {
+    case PROP_N_COMPONENTS:
+      g_value_set_int (value, self->n_components);
+      break;
+
+    case PROP_FACTOR:
+      g_value_set_double (value, self->factor);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_operation_scalar_multiply_set_property (GObject      *object,
+                                             guint         property_id,
+                                             const GValue *value,
+                                             GParamSpec   *pspec)
+{
+  GimpOperationScalarMultiply *self = GIMP_OPERATION_SCALAR_MULTIPLY (object);
+
+  switch (property_id)
+    {
+    case PROP_N_COMPONENTS:
+      self->n_components = g_value_get_int (value);
+      break;
+
+    case PROP_FACTOR:
+      self->factor = g_value_get_double (value);
+      break;
+
+   default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_operation_scalar_multiply_prepare (GeglOperation *operation)
+{
+  GimpOperationScalarMultiply *self = GIMP_OPERATION_SCALAR_MULTIPLY (operation);
+  const Babl                  *format;
+
+  format = babl_format_n (babl_type ("float"), self->n_components);
+
+  gegl_operation_set_format (operation, "input",  format);
+  gegl_operation_set_format (operation, "output", format);
+}
+
+static gboolean
+gimp_operation_scalar_multiply_process (GeglOperation       *operation,
+                                        void                *in_buf,
+                                        void                *out_buf,
+                                        glong                samples,
+                                        const GeglRectangle *roi,
+                                        gint                 level)
+{
+  GimpOperationScalarMultiply *self = GIMP_OPERATION_SCALAR_MULTIPLY (operation);
+  gfloat                      *src  = in_buf;
+  gfloat                      *dest = out_buf;
+  glong                        n_samples;
+
+  n_samples = samples * self->n_components;
+
+  while (n_samples--)
+    {
+      *dest = *src * self->factor;
+
+      src++;
+      dest++;
+    }
+
+  return TRUE;
+}