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diff --git a/plug-ins/common/file-gegl.c b/plug-ins/common/file-gegl.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * file-gegl.c -- GEGL based file format plug-in
+ * Copyright (C) 2012 Simon Budig <simon@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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <errno.h>
+
+#include <glib/gstdio.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define PLUG_IN_BINARY "file-gegl"
+
+
+typedef struct _FileFormat FileFormat;
+
+struct _FileFormat
+{
+ const gchar *file_type;
+ const gchar *mime_type;
+ const gchar *extensions;
+ const gchar *magic;
+
+ const gchar *load_proc;
+ const gchar *load_blurb;
+ const gchar *load_help;
+ const gchar *load_op;
+
+ const gchar *save_proc;
+ const gchar *save_blurb;
+ const gchar *save_help;
+ const gchar *save_op;
+};
+
+
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+static gint32 load_image (const gchar *filename,
+ const gchar *gegl_op,
+ GError **error);
+static gboolean save_image (const gchar *filename,
+ const gchar *gegl_op,
+ gint32 image_ID,
+ gint32 drawable_ID,
+ GError **error);
+
+
+static const FileFormat file_formats[] =
+{
+ {
+ N_("Radiance RGBE"),
+ "image/vnd.radiance",
+ "hdr",
+ "0,string,#?",
+
+ "file-load-rgbe",
+ "Load files in the RGBE file format",
+ "This procedure loads images in the RGBE format, using gegl:rgbe-load",
+ "gegl:rgbe-load",
+
+ "file-save-rgbe",
+ "Saves files in the RGBE file format",
+ "This procedure exports images in the RGBE format, using gegl:rgbe-save",
+ "gegl:rgbe-save",
+ },
+ {
+ N_("OpenEXR image"),
+ "image/x-exr",
+ "exr",
+ "0,lelong,20000630",
+
+ /* no EXR loading (implemented in native GIMP plug-in) */
+ NULL, NULL, NULL, NULL,
+
+ "file-exr-save",
+ "Saves files in the OpenEXR file format",
+ "This procedure saves images in the OpenEXR format, using gegl:exr-save",
+ "gegl:exr-save"
+ }
+};
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query proc */
+ run, /* run_proc */
+};
+
+MAIN ()
+
+static void
+query (void)
+{
+ static const GimpParamDef load_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_STRING, "filename", "The name of the file to load." },
+ { GIMP_PDB_STRING, "raw-filename", "The name entered" },
+ };
+
+ static const GimpParamDef load_return_vals[] =
+ {
+ { GIMP_PDB_IMAGE, "image", "Output image" }
+ };
+
+ static const GimpParamDef save_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image", "Input image" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
+ { GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
+ { GIMP_PDB_STRING, "raw-filename", "The name of the file to save the image in" }
+ };
+
+ gint i;
+
+ for (i = 0; i < G_N_ELEMENTS (file_formats); i++)
+ {
+ const FileFormat *format = &file_formats[i];
+
+ if (format->load_proc)
+ {
+ gimp_install_procedure (format->load_proc,
+ format->load_blurb,
+ format->load_help,
+ "Simon Budig",
+ "Simon Budig",
+ "2012",
+ format->file_type,
+ NULL,
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (load_args),
+ G_N_ELEMENTS (load_return_vals),
+ load_args, load_return_vals);
+
+ gimp_register_file_handler_mime (format->load_proc,
+ format->mime_type);
+ gimp_register_magic_load_handler (format->load_proc,
+ format->extensions,
+ "",
+ format->magic);
+ }
+
+ if (format->save_proc)
+ {
+ gimp_install_procedure (format->save_proc,
+ format->save_blurb,
+ format->save_help,
+ "Simon Budig",
+ "Simon Budig",
+ "2012",
+ format->file_type,
+ "*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (save_args), 0,
+ save_args, NULL);
+
+ gimp_register_file_handler_mime (format->save_proc,
+ format->mime_type);
+ gimp_register_save_handler (format->save_proc,
+ format->extensions, "");
+ }
+ }
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[2];
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ GimpRunMode run_mode;
+ gint image_ID;
+ gint drawable_ID;
+ GError *error = NULL;
+ gint i;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ run_mode = param[0].data.d_int32;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
+
+ for (i = 0; i < G_N_ELEMENTS (file_formats); i++)
+ {
+ const FileFormat *format = &file_formats[i];
+
+ if (format->load_proc && !strcmp (name, format->load_proc))
+ {
+ image_ID = load_image (param[1].data.d_string, format->load_op, &error);
+
+ if (image_ID != -1)
+ {
+ *nreturn_vals = 2;
+ values[1].type = GIMP_PDB_IMAGE;
+ values[1].data.d_image = image_ID;
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+
+ break;
+ }
+ else if (format->save_proc && !strcmp (name, format->save_proc))
+ {
+ GimpExportReturn export = GIMP_EXPORT_CANCEL;
+
+ image_ID = param[1].data.d_int32;
+ drawable_ID = param[2].data.d_int32;
+
+ /* eventually export the image */
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ case GIMP_RUN_WITH_LAST_VALS:
+ gimp_ui_init (PLUG_IN_BINARY, FALSE);
+
+ export = gimp_export_image (&image_ID, &drawable_ID, "GEGL",
+ GIMP_EXPORT_CAN_HANDLE_RGB |
+ GIMP_EXPORT_CAN_HANDLE_GRAY |
+ GIMP_EXPORT_CAN_HANDLE_INDEXED |
+ GIMP_EXPORT_CAN_HANDLE_ALPHA);
+
+ if (export == GIMP_EXPORT_CANCEL)
+ {
+ *nreturn_vals = 1;
+ values[0].data.d_status = GIMP_PDB_CANCEL;
+ return;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if (! save_image (param[3].data.d_string,
+ format->save_op,
+ image_ID, drawable_ID,
+ &error))
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+
+ if (export == GIMP_EXPORT_EXPORT)
+ gimp_image_delete (image_ID);
+
+ break;
+ }
+ }
+
+ if (i == G_N_ELEMENTS (file_formats))
+ status = GIMP_PDB_CALLING_ERROR;
+
+ if (status != GIMP_PDB_SUCCESS && error)
+ {
+ *nreturn_vals = 2;
+ values[1].type = GIMP_PDB_STRING;
+ values[1].data.d_string = error->message;
+ }
+
+ values[0].data.d_status = status;
+
+ gegl_exit ();
+}
+
+static gint32
+load_image (const gchar *filename,
+ const gchar *gegl_op,
+ GError **error)
+{
+ gint32 image_ID = -1;
+ gint32 layer_ID;
+ GimpImageType image_type;
+ GimpImageBaseType base_type;
+ GimpPrecision precision;
+ gint width;
+ gint height;
+ GeglNode *graph;
+ GeglNode *sink;
+ GeglNode *source;
+ GeglBuffer *src_buf = NULL;
+ GeglBuffer *dest_buf = NULL;
+ const Babl *format;
+
+ gimp_progress_init_printf (_("Opening '%s'"),
+ gimp_filename_to_utf8 (filename));
+
+ graph = gegl_node_new ();
+
+ source = gegl_node_new_child (graph,
+ "operation", gegl_op,
+ "path", filename,
+ NULL);
+ sink = gegl_node_new_child (graph,
+ "operation", "gegl:buffer-sink",
+ "buffer", &src_buf,
+ NULL);
+
+ gegl_node_connect_to (source, "output",
+ sink, "input");
+
+ gegl_node_process (sink);
+
+ g_object_unref (graph);
+
+ if (! src_buf)
+ {
+ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
+ _("Could not open '%s'"),
+ gimp_filename_to_utf8 (filename));
+ return -1;
+ }
+
+ gimp_progress_update (0.33);
+
+ width = gegl_buffer_get_width (src_buf);
+ height = gegl_buffer_get_height (src_buf);
+ format = gegl_buffer_get_format (src_buf);
+
+ if (babl_format_is_palette (format))
+ {
+ base_type = GIMP_INDEXED;
+
+ if (babl_format_has_alpha (format))
+ image_type = GIMP_INDEXEDA_IMAGE;
+ else
+ image_type = GIMP_INDEXED_IMAGE;
+
+ precision = GIMP_PRECISION_U8_GAMMA;
+ }
+ else
+ {
+ const Babl *model = babl_format_get_model (format);
+ const Babl *type = babl_format_get_type (format, 0);
+ gboolean linear = TRUE;
+
+ if (model == babl_model ("Y") ||
+ model == babl_model ("Y'") ||
+ model == babl_model ("YA") ||
+ model == babl_model ("Y'A"))
+ {
+ base_type = GIMP_GRAY;
+
+ if (babl_format_has_alpha (format))
+ image_type = GIMP_GRAYA_IMAGE;
+ else
+ image_type = GIMP_GRAY_IMAGE;
+
+ if (model == babl_model ("Y'") ||
+ model == babl_model ("Y'A"))
+ linear = FALSE;
+ }
+ else
+ {
+ base_type = GIMP_RGB;
+
+ if (babl_format_has_alpha (format))
+ image_type = GIMP_RGBA_IMAGE;
+ else
+ image_type = GIMP_RGB_IMAGE;
+
+ if (model == babl_model ("R'G'B'") ||
+ model == babl_model ("R'G'B'A"))
+ linear = FALSE;
+ }
+
+ if (linear)
+ {
+ if (type == babl_type ("u8"))
+ precision = GIMP_PRECISION_U8_LINEAR;
+ else if (type == babl_type ("u16"))
+ precision = GIMP_PRECISION_U16_LINEAR;
+ else if (type == babl_type ("u32"))
+ precision = GIMP_PRECISION_U32_LINEAR;
+ else if (type == babl_type ("half"))
+ precision = GIMP_PRECISION_HALF_LINEAR;
+ else
+ precision = GIMP_PRECISION_FLOAT_LINEAR;
+ }
+ else
+ {
+ if (type == babl_type ("u8"))
+ precision = GIMP_PRECISION_U8_GAMMA;
+ else if (type == babl_type ("u16"))
+ precision = GIMP_PRECISION_U16_GAMMA;
+ else if (type == babl_type ("u32"))
+ precision = GIMP_PRECISION_U32_GAMMA;
+ else if (type == babl_type ("half"))
+ precision = GIMP_PRECISION_HALF_GAMMA;
+ else
+ precision = GIMP_PRECISION_FLOAT_GAMMA;
+ }
+ }
+
+
+ image_ID = gimp_image_new_with_precision (width, height,
+ base_type, precision);
+ gimp_image_set_filename (image_ID, filename);
+
+ layer_ID = gimp_layer_new (image_ID,
+ _("Background"),
+ width, height,
+ image_type,
+ 100,
+ gimp_image_get_default_new_layer_mode (image_ID));
+ gimp_image_insert_layer (image_ID, layer_ID, -1, 0);
+ dest_buf = gimp_drawable_get_buffer (layer_ID);
+
+ gimp_progress_update (0.66);
+
+ gegl_buffer_copy (src_buf, NULL, GEGL_ABYSS_NONE, dest_buf, NULL);
+
+ g_object_unref (src_buf);
+ g_object_unref (dest_buf);
+
+ gimp_progress_update (1.0);
+
+ return image_ID;
+}
+
+static gboolean
+save_image (const gchar *filename,
+ const gchar *gegl_op,
+ gint32 image_ID,
+ gint32 drawable_ID,
+ GError **error)
+{
+ GeglNode *graph;
+ GeglNode *source;
+ GeglNode *sink;
+ GeglBuffer *src_buf;
+
+ src_buf = gimp_drawable_get_buffer (drawable_ID);
+
+ graph = gegl_node_new ();
+
+ source = gegl_node_new_child (graph,
+ "operation", "gegl:buffer-source",
+ "buffer", src_buf,
+ NULL);
+ sink = gegl_node_new_child (graph,
+ "operation", gegl_op,
+ "path", filename,
+ NULL);
+
+ gegl_node_connect_to (source, "output",
+ sink, "input");
+
+ gegl_node_process (sink);
+
+ g_object_unref (graph);
+ g_object_unref (src_buf);
+
+ return TRUE;
+}
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