/* 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 2006 Øyvind Kolås <pippin@gimp.org>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
gegl_chant_pointer (pixbuf, _("Pixbuf"), _("GdkPixbuf to use"))
#else
#define GEGL_CHANT_TYPE_SOURCE
#define GEGL_CHANT_C_FILE "pixbuf.c"
#include "gegl-chant.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gdk-pixbuf/gdk-pixdata.h>
static GeglRectangle
get_bounding_box (GeglOperation *operation)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
GeglRectangle result = {0,0,0,0};
if (!o->pixbuf)
{
return result;
}
result.x = 0;
result.y = 0;
result.width = gdk_pixbuf_get_width (o->pixbuf);
result.height = gdk_pixbuf_get_height (o->pixbuf);
return result;
}
static void prepare (GeglOperation *operation)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
gegl_operation_set_format (operation, "output",
babl_format(gdk_pixbuf_get_has_alpha(o->pixbuf)?"R'G'B'A u8":"R'G'B' u8"));
}
static gboolean
process (GeglOperation *operation,
GeglBuffer *output,
const GeglRectangle *result,
gint level)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
if (o->pixbuf)
{
GeglRectangle extent;
extent.x = 0;
extent.y = 0;
extent.width = gdk_pixbuf_get_width (o->pixbuf);
extent.height = gdk_pixbuf_get_height (o->pixbuf);
gegl_buffer_set (output, &extent, 0, NULL, gdk_pixbuf_get_pixels (o->pixbuf),
GEGL_AUTO_ROWSTRIDE);
}
return TRUE;
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationSourceClass *source_class;
operation_class = GEGL_OPERATION_CLASS (klass);
source_class = GEGL_OPERATION_SOURCE_CLASS (klass);
source_class->process = process;
operation_class->get_bounding_box = get_bounding_box;
operation_class->prepare = prepare;
/*operation_class->no_cache = TRUE;*/
gegl_operation_class_set_keys (operation_class,
"name" , "gegl:pixbuf",
"categories" , "programming:input",
"description" ,
_("Uses the GdkPixbuf located at the memory location in <em>pixbuf</em>."),
NULL);
}
#endif