[gimp] app: add GimpOperationScalarMultiply
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp] app: add GimpOperationScalarMultiply
- Date: Thu, 6 Nov 2014 23:46:04 +0000 (UTC)
commit e629f4c14b423a61a67ad8963411039e07143f38
Author: Michael Natterer <mitch gimp org>
Date: Fri Nov 7 00:39:22 2014 +0100
app: add GimpOperationScalarMultiply
which multiplies each float in a gegl_format_n(float, n) input
by a factor.
app/operations/Makefile.am | 2 +
app/operations/gimp-operations.c | 2 +
app/operations/gimpoperationscalarmultiply.c | 189 ++++++++++++++++++++++++++
app/operations/gimpoperationscalarmultiply.h | 56 ++++++++
4 files changed, 249 insertions(+), 0 deletions(-)
---
diff --git a/app/operations/Makefile.am b/app/operations/Makefile.am
index e46001f..e65b1c7 100644
--- a/app/operations/Makefile.am
+++ b/app/operations/Makefile.am
@@ -60,6 +60,8 @@ libappoperations_generic_a_sources = \
gimpoperationhistogramsink.h \
gimpoperationmaskcomponents.c \
gimpoperationmaskcomponents.h \
+ gimpoperationscalarmultiply.c \
+ gimpoperationscalarmultiply.h \
gimpoperationsemiflatten.c \
gimpoperationsemiflatten.h \
gimpoperationsetalpha.c \
diff --git a/app/operations/gimp-operations.c b/app/operations/gimp-operations.c
index 73101c7..35db242 100644
--- a/app/operations/gimp-operations.c
+++ b/app/operations/gimp-operations.c
@@ -36,6 +36,7 @@
#include "gimpoperationgrow.h"
#include "gimpoperationhistogramsink.h"
#include "gimpoperationmaskcomponents.h"
+#include "gimpoperationscalarmultiply.h"
#include "gimpoperationsemiflatten.h"
#include "gimpoperationsetalpha.h"
#include "gimpoperationshapeburst.h"
@@ -92,6 +93,7 @@ gimp_operations_init (void)
g_type_class_ref (GIMP_TYPE_OPERATION_GROW);
g_type_class_ref (GIMP_TYPE_OPERATION_HISTOGRAM_SINK);
g_type_class_ref (GIMP_TYPE_OPERATION_MASK_COMPONENTS);
+ g_type_class_ref (GIMP_TYPE_OPERATION_SCALAR_MULTIPLY);
g_type_class_ref (GIMP_TYPE_OPERATION_SEMI_FLATTEN);
g_type_class_ref (GIMP_TYPE_OPERATION_SET_ALPHA);
g_type_class_ref (GIMP_TYPE_OPERATION_SHAPEBURST);
diff --git a/app/operations/gimpoperationscalarmultiply.c b/app/operations/gimpoperationscalarmultiply.c
new file mode 100644
index 0000000..0f17e89
--- /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 <http://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;
+}
diff --git a/app/operations/gimpoperationscalarmultiply.h b/app/operations/gimpoperationscalarmultiply.h
new file mode 100644
index 0000000..9edcffe
--- /dev/null
+++ b/app/operations/gimpoperationscalarmultiply.h
@@ -0,0 +1,56 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpoperationscalarmultiply.h
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_OPERATION_SCALAR_MULTIPLY_H__
+#define __GIMP_OPERATION_SCALAR_MULTIPLY_H__
+
+
+#include <gegl-plugin.h>
+
+
+#define GIMP_TYPE_OPERATION_SCALAR_MULTIPLY (gimp_operation_scalar_multiply_get_type ())
+#define GIMP_OPERATION_SCALAR_MULTIPLY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),
GIMP_TYPE_OPERATION_SCALAR_MULTIPLY, GimpOperationScalarMultiply))
+#define GIMP_OPERATION_SCALAR_MULTIPLY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass),
GIMP_TYPE_OPERATION_SCALAR_MULTIPLY, GimpOperationScalarMultiplyClass))
+#define GIMP_IS_OPERATION_SCALAR_MULTIPLY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj),
GIMP_TYPE_OPERATION_SCALAR_MULTIPLY))
+#define GIMP_IS_OPERATION_SCALAR_MULTIPLY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),
GIMP_TYPE_OPERATION_SCALAR_MULTIPLY))
+#define GIMP_OPERATION_SCALAR_MULTIPLY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),
GIMP_TYPE_OPERATION_SCALAR_MULTIPLY, GimpOperationScalarMultiplyClass))
+
+
+typedef struct _GimpOperationScalarMultiply GimpOperationScalarMultiply;
+typedef struct _GimpOperationScalarMultiplyClass GimpOperationScalarMultiplyClass;
+
+struct _GimpOperationScalarMultiply
+{
+ GeglOperationPointFilter parent_instance;
+
+ gint n_components;
+ gdouble factor;
+};
+
+struct _GimpOperationScalarMultiplyClass
+{
+ GeglOperationPointComposerClass parent_class;
+};
+
+
+GType gimp_operation_scalar_multiply_get_type (void) G_GNUC_CONST;
+
+
+#endif /* __GIMP_OPERATION_SCALAR_MULTIPLY_H__ */
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