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-rw-r--r--app/operations/gimpoperationbuffersourcevalidate.c307
1 files changed, 307 insertions, 0 deletions
diff --git a/app/operations/gimpoperationbuffersourcevalidate.c b/app/operations/gimpoperationbuffersourcevalidate.c
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+++ b/app/operations/gimpoperationbuffersourcevalidate.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpoperationbuffersourcevalidate.c
+ * Copyright (C) 2017 Ell
+ *
+ * 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 <cairo.h>
+#include <gegl-plugin.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+#include "operations-types.h"
+
+#include "gegl/gimptilehandlervalidate.h"
+
+#include "gimpoperationbuffersourcevalidate.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_BUFFER
+};
+
+
+static void gimp_operation_buffer_source_validate_dispose (GObject *object);
+static void gimp_operation_buffer_source_validate_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gimp_operation_buffer_source_validate_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+
+static GeglRectangle gimp_operation_buffer_source_validate_get_bounding_box (GeglOperation *operation);
+static void gimp_operation_buffer_source_validate_prepare (GeglOperation *operation);
+static gboolean gimp_operation_buffer_source_validate_process (GeglOperation *operation,
+ GeglOperationContext *context,
+ const gchar *output_pad,
+ const GeglRectangle *result,
+ gint level);
+
+static void gimp_operation_buffer_source_validate_invalidate (gpointer object,
+ const GeglRectangle *rect,
+ GimpOperationBufferSourceValidate *buffer_source_validate);
+
+
+G_DEFINE_TYPE (GimpOperationBufferSourceValidate, gimp_operation_buffer_source_validate,
+ GEGL_TYPE_OPERATION_SOURCE)
+
+#define parent_class gimp_operation_buffer_source_validate_parent_class
+
+
+static void
+gimp_operation_buffer_source_validate_class_init (GimpOperationBufferSourceValidateClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
+
+ object_class->dispose = gimp_operation_buffer_source_validate_dispose;
+ object_class->set_property = gimp_operation_buffer_source_validate_set_property;
+ object_class->get_property = gimp_operation_buffer_source_validate_get_property;
+
+ operation_class->get_bounding_box = gimp_operation_buffer_source_validate_get_bounding_box;
+ operation_class->prepare = gimp_operation_buffer_source_validate_prepare;
+ operation_class->process = gimp_operation_buffer_source_validate_process;
+
+ operation_class->threaded = FALSE;
+ operation_class->cache_policy = GEGL_CACHE_POLICY_NEVER;
+
+ gegl_operation_class_set_keys (operation_class,
+ "name", "gimp:buffer-source-validate",
+ "categories", "gimp",
+ "description", "GIMP Buffer-Source Validate operation",
+ NULL);
+
+ g_object_class_install_property (object_class, PROP_BUFFER,
+ g_param_spec_object ("buffer",
+ "Buffer",
+ "Input buffer",
+ GEGL_TYPE_BUFFER,
+ G_PARAM_READWRITE));
+}
+
+static void
+gimp_operation_buffer_source_validate_init (GimpOperationBufferSourceValidate *self)
+{
+}
+
+static void
+gimp_operation_buffer_source_validate_dispose (GObject *object)
+{
+ GimpOperationBufferSourceValidate *buffer_source_validate = GIMP_OPERATION_BUFFER_SOURCE_VALIDATE (object);
+
+ if (buffer_source_validate->buffer)
+ {
+ GimpTileHandlerValidate *validate_handler;
+
+ validate_handler = gimp_tile_handler_validate_get_assigned (
+ buffer_source_validate->buffer);
+
+ if (validate_handler)
+ {
+ g_signal_connect (
+ validate_handler,
+ "invalidated",
+ G_CALLBACK (gimp_operation_buffer_source_validate_invalidate),
+ buffer_source_validate);
+ }
+
+ g_signal_handlers_disconnect_by_func (
+ buffer_source_validate->buffer,
+ gimp_operation_buffer_source_validate_invalidate,
+ buffer_source_validate);
+
+ g_clear_object (&buffer_source_validate->buffer);
+ }
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gimp_operation_buffer_source_validate_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpOperationBufferSourceValidate *buffer_source_validate = GIMP_OPERATION_BUFFER_SOURCE_VALIDATE (object);
+
+ switch (property_id)
+ {
+ case PROP_BUFFER:
+ g_value_set_object (value, buffer_source_validate->buffer);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_operation_buffer_source_validate_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpOperationBufferSourceValidate *buffer_source_validate = GIMP_OPERATION_BUFFER_SOURCE_VALIDATE (object);
+
+ switch (property_id)
+ {
+ case PROP_BUFFER:
+ {
+ if (buffer_source_validate->buffer)
+ {
+ GimpTileHandlerValidate *validate_handler;
+
+ validate_handler = gimp_tile_handler_validate_get_assigned (
+ buffer_source_validate->buffer);
+
+ gimp_operation_buffer_source_validate_invalidate (
+ buffer_source_validate->buffer,
+ gegl_buffer_get_extent (buffer_source_validate->buffer),
+ buffer_source_validate);
+
+ g_signal_handlers_disconnect_by_func (
+ buffer_source_validate->buffer,
+ gimp_operation_buffer_source_validate_invalidate,
+ buffer_source_validate);
+
+ if (validate_handler)
+ {
+ g_signal_handlers_disconnect_by_func (
+ validate_handler,
+ gimp_operation_buffer_source_validate_invalidate,
+ buffer_source_validate);
+ }
+
+ g_clear_object (&buffer_source_validate->buffer);
+ }
+
+ buffer_source_validate->buffer = g_value_dup_object (value);
+
+ if (buffer_source_validate->buffer)
+ {
+ GimpTileHandlerValidate *validate_handler;
+
+ validate_handler = gimp_tile_handler_validate_get_assigned (
+ buffer_source_validate->buffer);
+
+ if (validate_handler)
+ {
+ g_signal_connect (
+ validate_handler,
+ "invalidated",
+ G_CALLBACK (gimp_operation_buffer_source_validate_invalidate),
+ buffer_source_validate);
+ }
+
+ gegl_buffer_signal_connect (
+ buffer_source_validate->buffer,
+ "changed",
+ G_CALLBACK (gimp_operation_buffer_source_validate_invalidate),
+ buffer_source_validate);
+
+ gimp_operation_buffer_source_validate_invalidate (
+ buffer_source_validate->buffer,
+ gegl_buffer_get_extent (buffer_source_validate->buffer),
+ buffer_source_validate);
+ }
+ }
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static GeglRectangle
+gimp_operation_buffer_source_validate_get_bounding_box (GeglOperation *operation)
+{
+ GimpOperationBufferSourceValidate *buffer_source_validate = GIMP_OPERATION_BUFFER_SOURCE_VALIDATE (operation);
+
+ GeglRectangle result = {};
+
+ if (buffer_source_validate->buffer)
+ result = *gegl_buffer_get_extent (buffer_source_validate->buffer);
+
+ return result;
+}
+
+static void
+gimp_operation_buffer_source_validate_prepare (GeglOperation *operation)
+{
+ GimpOperationBufferSourceValidate *buffer_source_validate = GIMP_OPERATION_BUFFER_SOURCE_VALIDATE (operation);
+ const Babl *format = NULL;
+
+ if (buffer_source_validate->buffer)
+ format = gegl_buffer_get_format (buffer_source_validate->buffer);
+
+ gegl_operation_set_format (operation, "output", format);
+}
+
+static gboolean
+gimp_operation_buffer_source_validate_process (GeglOperation *operation,
+ GeglOperationContext *context,
+ const gchar *output_pad,
+ const GeglRectangle *result,
+ gint level)
+{
+ GimpOperationBufferSourceValidate *buffer_source_validate = GIMP_OPERATION_BUFFER_SOURCE_VALIDATE (operation);
+ GeglBuffer *buffer = buffer_source_validate->buffer;
+
+ if (buffer)
+ {
+ GimpTileHandlerValidate *validate_handler;
+
+ validate_handler = gimp_tile_handler_validate_get_assigned (buffer);
+
+ if (validate_handler)
+ {
+ GeglRectangle rect;
+
+ /* align the rectangle to the tile grid */
+ gegl_rectangle_align_to_buffer (
+ &rect, result, buffer_source_validate->buffer,
+ GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
+
+ gimp_tile_handler_validate_validate (validate_handler,
+ buffer_source_validate->buffer,
+ &rect,
+ TRUE, FALSE);
+ }
+
+ gegl_operation_context_set_object (context, "output", G_OBJECT (buffer));
+
+ gegl_object_set_has_forked (G_OBJECT (buffer));
+ }
+
+ return TRUE;
+}
+
+static void
+gimp_operation_buffer_source_validate_invalidate (gpointer object,
+ const GeglRectangle *rect,
+ GimpOperationBufferSourceValidate *buffer_source_validate)
+{
+ gegl_operation_invalidate (GEGL_OPERATION (buffer_source_validate),
+ rect, FALSE);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 14:40:17 +0000