/* 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 2007 Étienne Bersac <bersace03@laposte.net>
*/
#include "config.h"
#include <babl/babl.h>
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
gegl_chant_pointer (pixbuf, _("Pixbuf location"),
_("The location where to store the output GdkPixbuf."))
#else
#define GEGL_CHANT_TYPE_SINK
#define GEGL_CHANT_C_FILE "save-pixbuf.c"
#include "gegl-chant.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
static gboolean
process (GeglOperation *operation,
GeglBuffer *input,
const GeglRectangle *result,
gint level)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
if (o->pixbuf)
{
GdkPixbuf **pixbuf = o->pixbuf;
const Babl *babl;
const Babl *format;
guchar *temp;
GeglRectangle *rect = gegl_operation_source_get_bounding_box (operation, "input");
gchar *name;
gboolean has_alpha;
gint bps;
g_object_get (input, "format", &format, NULL);
has_alpha = babl_format_has_alpha (format);
/* pixbuf from data only support 8bit bps */
bps = 8;
name = g_strdup_printf ("R'G'B'%s u%i",
has_alpha ? "A" : "",
bps);
babl = babl_format (name);
temp = g_malloc (rect->width * rect->height * bps);
gegl_buffer_get (input, rect, 1.0, babl, temp, GEGL_AUTO_ROWSTRIDE,
GEGL_ABYSS_NONE);
if (temp) {
*pixbuf = gdk_pixbuf_new_from_data (temp,
GDK_COLORSPACE_RGB,
has_alpha,
bps,
rect->width, rect->height,
rect->width * (has_alpha ? 4 : 3) * bps/8,
(GdkPixbufDestroyNotify) g_free, NULL);
}
else {
g_warning (G_STRLOC ": inexistant data, unable to create GdkPixbuf.");
}
g_free (name);
}
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 = process;
sink_class->needs_full = TRUE;
gegl_operation_class_set_keys (operation_class,
"name" , "gegl:save-pixbuf",
"categories" , "programming:output",
"description" , _("Save output into a GdkPixbuf."),
NULL);
}
#endif