Commit 4143031b authored by Martin Nordholts's avatar Martin Nordholts

operations: Add "gegl:gegl-buffer-save/load" ops

Add "gegl:gegl-buffer-save" and "gegl:gegl-buffer-load". Register
these as both save and load handlers, so that you can do

  $ gegl clones.xml -o clones.gegl

to create a GeglBuffer output, and then

  $ gegl clones.gegl

to display the GeglBuffer.
parent c10dd635
/* This file is an image processing operation for GEGL
*
* GEGL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* GEGL 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2010 Martin Nordholts <martinn@src.gnome.org>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
gegl_chant_file_path (path, _("File"), "/tmp/gegl-buffer.gegl", _("Path of GeglBuffer file to load."))
#else
#define GEGL_CHANT_TYPE_SOURCE
#define GEGL_CHANT_C_FILE "gegl-buffer-load-op.c"
#include "gegl-chant.h"
static void
gegl_buffer_load_op_ensure_buffer (GeglChantO *o)
{
if (!o->chant_data)
o->chant_data = gegl_buffer_load (o->path);
}
static GeglRectangle
gegl_buffer_load_op_get_bounding_box (GeglOperation *operation)
{
GeglRectangle result = { 0, 0, 0, 0 };
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
gegl_buffer_load_op_ensure_buffer (o);
if (o->chant_data)
{
result.width = gegl_buffer_get_width (GEGL_BUFFER (o->chant_data));
result.height = gegl_buffer_get_height (GEGL_BUFFER (o->chant_data));
}
return result;
}
static gboolean
gegl_buffer_load_op_process (GeglOperation *operation,
GeglOperationContext *context,
const gchar *output_pad,
const GeglRectangle *result)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
gegl_buffer_load_op_ensure_buffer (o);
gegl_operation_context_take_object (context, output_pad, o->chant_data);
o->chant_data = NULL;
return TRUE;
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
operation_class = GEGL_OPERATION_CLASS (klass);
operation_class->process = gegl_buffer_load_op_process;
operation_class->get_bounding_box = gegl_buffer_load_op_get_bounding_box;
operation_class->name = "gegl:gegl-buffer-load";
operation_class->categories = "hidden";
operation_class->description = _("GeglBuffer file loader.");
gegl_extension_handler_register (".gegl", "gegl:gegl-buffer-load");
}
#endif
/* This file is an image processing operation for GEGL
*
* GEGL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* GEGL 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2010 Martin Nordholts <martinn@src.gnome.org>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
gegl_chant_file_path (path, _("File"), "/tmp/gegl-buffer.gegl", _("Target file path to write GeglBuffer to."))
#else
#define GEGL_CHANT_TYPE_SINK
#define GEGL_CHANT_C_FILE "gegl-buffer-save-op.c"
#include "gegl-chant.h"
static gboolean
gegl_buffer_save_op_process (GeglOperation *operation,
GeglBuffer *input,
const GeglRectangle *result)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
gegl_buffer_save (input, o->path, result);
return TRUE;
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationSinkClass *sink_class;
operation_class = GEGL_OPERATION_CLASS (klass);
sink_class = GEGL_OPERATION_SINK_CLASS (klass);
sink_class->process = gegl_buffer_save_op_process;
sink_class->needs_full = TRUE;
operation_class->name = "gegl:gegl-buffer-save";
operation_class->categories = "hidden";
operation_class->description = _("GeglBuffer file writer.");
gegl_extension_handler_register_saver (".gegl", "gegl:gegl-buffer-save");
}
#endif
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