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/* This file is an image processing operation for GEGL
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*
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* GEGL is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* GEGL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2006 Øyvind Kolås <pippin@gimp.org>
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*/
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#include "config.h"
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#include <glib/gi18n-lib.h>
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#ifdef GEGL_CHANT_PROPERTIES
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gegl_chant_pointer (pixbuf, _("Pixbuf"), _("GdkPixbuf to use"))
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#else
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#define GEGL_CHANT_TYPE_SOURCE
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#define GEGL_CHANT_C_FILE "pixbuf.c"
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#include "gegl-chant.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gdk-pixbuf/gdk-pixdata.h>
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static GeglRectangle
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get_bounding_box (GeglOperation *operation)
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{
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GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
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GeglRectangle result = {0,0,0,0};
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if (!o->pixbuf)
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{
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return result;
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}
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result.x = 0;
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result.y = 0;
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result.width = gdk_pixbuf_get_width (o->pixbuf);
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result.height = gdk_pixbuf_get_height (o->pixbuf);
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return result;
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}
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static void prepare (GeglOperation *operation)
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{
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GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
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gegl_operation_set_format (operation, "output",
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babl_format(gdk_pixbuf_get_has_alpha(o->pixbuf)?"R'G'B'A u8":"R'G'B' u8"));
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}
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static gboolean
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process (GeglOperation *operation,
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GeglBuffer *output,
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const GeglRectangle *result,
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gint level)
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{
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GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
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if (o->pixbuf)
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{
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GeglRectangle extent;
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extent.x = 0;
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extent.y = 0;
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extent.width = gdk_pixbuf_get_width (o->pixbuf);
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extent.height = gdk_pixbuf_get_height (o->pixbuf);
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gegl_buffer_set (output, &extent, 0, NULL, gdk_pixbuf_get_pixels (o->pixbuf),
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GEGL_AUTO_ROWSTRIDE);
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}
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return TRUE;
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}
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static void
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gegl_chant_class_init (GeglChantClass *klass)
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{
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GeglOperationClass *operation_class;
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GeglOperationSourceClass *source_class;
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operation_class = GEGL_OPERATION_CLASS (klass);
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source_class = GEGL_OPERATION_SOURCE_CLASS (klass);
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source_class->process = process;
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operation_class->get_bounding_box = get_bounding_box;
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operation_class->prepare = prepare;
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/*operation_class->no_cache = TRUE;*/
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gegl_operation_class_set_keys (operation_class,
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"name" , "gegl:pixbuf",
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"categories" , "programming:input",
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"description" ,
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_("Uses the GdkPixbuf located at the memory location in pixbuf."),
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NULL);
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}
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#endif
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