/* GIMP - The GNU Image Manipulation Program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * gimp-gegl.c
 * Copyright (C) 2007 Øyvind Kolås <pippin@gimp.org>
 *
 * 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 <http://www.gnu.org/licenses/>.
 */

#include "config.h"

#include <gegl.h>

#include "gimp-gegl-types.h"

#include "config/gimpgeglconfig.h"

#include "operations/gimp-operations.h"

#include "core/gimp.h"

#include "gimp-babl.h"
#include "gimp-gegl.h"


static void  gimp_gegl_notify_tile_cache_size (GimpGeglConfig *config);
static void  gimp_gegl_notify_num_processors  (GimpGeglConfig *config);


void
gimp_gegl_init (Gimp *gimp)
{
  GimpGeglConfig *config;

  g_return_if_fail (GIMP_IS_GIMP (gimp));

  config = GIMP_GEGL_CONFIG (gimp->config);

#ifdef __GNUC__
#warning not setting GeglConfig:threads
#endif

  if (g_object_class_find_property (G_OBJECT_GET_CLASS (gegl_config ()),
                                    "tile-cache-size"))
    {
      g_object_set (gegl_config (),
                    "cache-size", (guint64) config->tile_cache_size,
#if 0
                    "threads",    config->num_processors,
#endif
                    NULL);
    }
  else
    {
#ifdef __GNUC__
#warning limiting tile cache size to G_MAXINT
#endif

      g_object_set (gegl_config (),
                    "cache-size", (gint) MIN (config->tile_cache_size, G_MAXINT),
#if 0
                    "threads",    config->num_processors,
#endif
                    NULL);
    }

  /* turn down the precision of babl - permitting use of lookup tables for
   * gamma conversions, this precision is anyways high enough for both 8bit
   * and 16bit operation
   */
  g_object_set (gegl_config (),
                "babl-tolerance", 0.00015,
                NULL);

  g_signal_connect (config, "notify::tile-cache-size",
                    G_CALLBACK (gimp_gegl_notify_tile_cache_size),
                    NULL);
  g_signal_connect (config, "notify::num-processors",
                    G_CALLBACK (gimp_gegl_notify_num_processors),
                    NULL);

  gimp_babl_init ();

  gimp_operations_init ();
}

static void
gimp_gegl_notify_tile_cache_size (GimpGeglConfig *config)
{
  g_object_set (gegl_config (),
                "cache-size", (gint) MIN (config->tile_cache_size, G_MAXINT),
                NULL);
}

static void
gimp_gegl_notify_num_processors (GimpGeglConfig *config)
{
#if 0
  g_object_set (gegl_config (),
                "threads", config->num_processors,
                NULL);
#endif
}
