Merge pull request #3880 from Beep6581/gimp-plugin

Added support for using RawTherapee as a GIMP plugin for opening RAWs

rtgui/editorpanel.cc

@@ -681,13 +681,17 @@ EditorPanel::EditorPanel (FilePanel* filePanel)
     iops->attach_next_to (*vsep2, Gtk::POS_LEFT, 1, 1);
     iops->attach_next_to (*progressLabel, Gtk::POS_LEFT, 1, 1);
     iops->attach_next_to (*vsep1, Gtk::POS_LEFT, 1, 1);
-    iops->attach_next_to (*sendtogimp, Gtk::POS_LEFT, 1, 1);
+    if (!gimpPlugin) {
+        iops->attach_next_to (*sendtogimp, Gtk::POS_LEFT, 1, 1);
+    }
 
-    if (!simpleEditor) {
+    if (!gimpPlugin) {
         iops->attach_next_to (*queueimg, Gtk::POS_LEFT, 1, 1);
     }
 
-    iops->attach_next_to (*saveimgas, Gtk::POS_LEFT, 1, 1);
+    if (!gimpPlugin) {
+        iops->attach_next_to (*saveimgas, Gtk::POS_LEFT, 1, 1);
+    }
 
 
     // Color management toolbar
@@ -1579,7 +1583,9 @@ bool EditorPanel::handleShortcutKey (GdkEventKey* event)
                 return true;
 
             case GDK_KEY_s:
-                saveAsPressed();
+                if (!gimpPlugin) {
+                    saveAsPressed();
+                }
                 return true;
 
             case GDK_KEY_b:
@@ -1590,7 +1596,9 @@ bool EditorPanel::handleShortcutKey (GdkEventKey* event)
                 return true;
 
             case GDK_KEY_e:
-                sendToGimpPressed();
+                if (!gimpPlugin) {
+                    sendToGimpPressed();
+                }
                 return true;
 
             case GDK_KEY_z:
@@ -1889,6 +1897,30 @@ void EditorPanel::sendToGimpPressed ()
 }
 
 
+bool EditorPanel::saveImmediately(const Glib::ustring &filename, const SaveFormat &sf)
+{
+    rtengine::procparams::ProcParams pparams;
+    ipc->getParams (&pparams);
+    std::unique_ptr<rtengine::ProcessingJob> job(rtengine::ProcessingJob::create (ipc->getInitialImage(), pparams));
+
+    // save immediately
+    rtengine::IImage16 *img = rtengine::processImage(job.get(), err, nullptr, options.tunnelMetaData, false);
+
+    int err = 0;
+    if (sf.format == "tif") {
+        err = img->saveAsTIFF(filename, sf.tiffBits, sf.tiffUncompressed);
+    } else if (sf.format == "png") {
+        err = img->saveAsPNG(filename, sf.pngCompression, sf.pngBits);
+    } else if (sf.format == "jpg") {
+        err = img->saveAsJPEG(filename, sf.jpegQuality, sf.jpegSubSamp);
+    } else {
+        err = 1;
+    }
+    img->free();
+    return !err;
+}
+
+
 void EditorPanel::openPreviousEditorImage()
 {
     if (!simpleEditor && fPanel && !fname.empty()) {

rtgui/editorpanel.h

@@ -131,6 +131,8 @@ public:
 
     void defaultMonitorProfileChanged(const Glib::ustring &profile_name, bool auto_monitor_profile);
 
+    bool saveImmediately(const Glib::ustring &filename, const SaveFormat &sf);
+
     Gtk::Paned* catalogPane;
 
 private:

rtgui/filepanel.cc

@@ -190,8 +190,12 @@ void FilePanel::init ()
     dirBrowser->fillDirTree ();
     placesBrowser->refreshPlacesList ();
 
-    if (argv1 != "" && Glib::file_test (argv1, Glib::FILE_TEST_IS_DIR)) {
+    if (!argv1.empty() && Glib::file_test (argv1, Glib::FILE_TEST_EXISTS)) {
-        dirBrowser->open (argv1);
+        Glib::ustring d(argv1);
+        if (!Glib::file_test(d, Glib::FILE_TEST_IS_DIR)) {
+            d = Glib::path_get_dirname(d);
+        }
+        dirBrowser->open(d);
     } else {
         if (options.startupDir == STARTUPDIR_HOME) {
             dirBrowser->open (PlacesBrowser::userPicturesDir ());

rtgui/main.cc

@@ -60,7 +60,9 @@ Glib::ustring argv0;
 Glib::ustring creditsPath;
 Glib::ustring licensePath;
 Glib::ustring argv1;
-bool simpleEditor;
+Glib::ustring argv2;
+bool simpleEditor = false;
+bool gimpPlugin = false;
 Glib::RefPtr<Gtk::CssProvider> cssForced;
 Glib::RefPtr<Gtk::CssProvider> cssRT;
 //Glib::Threads::Thread* mainThread;
@@ -292,12 +294,21 @@ int main(int argc, char **argv)
 
 #endif
 
-    simpleEditor = false;
+    if (!argv1.empty()) {
-
-    if( !argv1.empty() )
         if( Glib::file_test(argv1, Glib::FILE_TEST_EXISTS) && !Glib::file_test(argv1, Glib::FILE_TEST_IS_DIR)) {
             simpleEditor = true;
         }
+    }
+    if (gimpPlugin) {
+        if (!Glib::file_test(argv1, Glib::FILE_TEST_EXISTS) || Glib::file_test(argv1, Glib::FILE_TEST_IS_DIR)) {
+            printf("Error: argv1 doesn't exist\n");
+            return 1;
+        }
+        if (argv2.empty()) {
+            printf("Error: -gimp requires two arguments\n");
+            return 1;
+        }
+    }
 
     Gtk::Main m(&argc, &argv);
 
@@ -385,7 +396,18 @@ int main(int argc, char **argv)
     // opening the main window
     m.run(*rtWindow);
 
+    if (gimpPlugin && rtWindow->epanel && rtWindow->epanel->isRealized()) {
+        SaveFormat sf;
+        sf.format = "tif";
+        sf.tiffBits = 16;
+        sf.tiffUncompressed = true;
+        sf.saveParams = true;
+            
+        rtWindow->epanel->saveImmediately(argv2, sf);
+    }        
+
     gdk_threads_leave ();
+    
     delete rtWindow;
     rtengine::cleanup();
 
@@ -428,6 +450,16 @@ int processLineParams( int argc, char **argv )
             case 'w': // This case is handled outside this function
                 break;
 #endif
+            case 'g':
+                if (currParam == "-gimp") {
+                    simpleEditor = true;
+                    gimpPlugin = true;
+                    break;
+                }
+                // no break here on purpose
+
+            case 'v':
+                return 0;
 
             case 'h':
             case '?':
@@ -454,16 +486,24 @@ int processLineParams( int argc, char **argv )
 #ifdef WIN32
                 std::cout << "  -w Do not open the Windows console" << std::endl;
 #endif
+                std::cout << "  -v Print RawTherapee version number and exit" << std::endl;
                 std::cout << "  -h -? Display this help message" << std::endl;
                 return -1;
             }
             }
         } else {
-            argv1 = Glib::ustring(fname_to_utf8(argv[iArg]));
+            if (argv1.empty()) {
+                argv1 = Glib::ustring(fname_to_utf8(argv[iArg]));
 #if ECLIPSE_ARGS
-            argv1 = argv1.substr(1, argv1.length()-2);
+                argv1 = argv1.substr(1, argv1.length()-2);
 #endif
-            break;
+            } else if (gimpPlugin) {
+                argv2 = Glib::ustring(fname_to_utf8(argv[iArg]));
+                break;
+            }
+            if (!gimpPlugin) {
+                break;
+            }
         }
     }
 

rtgui/options.h

@@ -358,6 +358,7 @@ extern Options options;
 extern Glib::ustring argv0;
 extern Glib::ustring argv1;
 extern bool simpleEditor;
+extern bool gimpPlugin;
 extern Glib::ustring versionString;
 extern Glib::ustring paramFileExtension;
 

rtgui/rtwindow.cc

@@ -283,6 +283,13 @@ RTWindow::RTWindow ()
         show_all ();
 
         bpanel->init (this);
+
+        if (!argv1.empty()) {
+            Thumbnail* thm = cacheMgr->getEntry(argv1);
+            if (thm) {
+                fpanel->fileCatalog->openRequested({thm});
+            }
+        }
     }
 
     if (!isSingleTabMode() && !simpleEditor) {
@@ -663,6 +670,7 @@ bool RTWindow::on_delete_event(GdkEventAny* event)
 
     Options::save ();
     hide();
+
     on_delete_has_run = true;
     return false;
 }

tools/gimp-plugin/file-formats.h

@@ -0,0 +1,316 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * file-rawtherapee.c -- raw file format plug-in that uses rawtherapee
+ * Copyright (C) 2016 Tobias Ellinghaus <me@houz.org>
+ * Copyright (C) 2017 Alberto Griggio <alberto.griggio@gmail.com>
+ *
+ * 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/>.
+ */
+
+/* These are the raw formats that file-rawtherapee will register */
+
+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;
+};
+
+#define N_(s) s
+#define _(s) s
+
+static const FileFormat file_formats[] =
+{
+  {
+    N_("Raw Canon"),
+    "image/x-canon-cr2,image/x-canon-crw",
+    "cr2,crw",
+    NULL,
+
+    "file-rawtherapee-canon-load",
+    "Load files in the Canon raw formats via rawtherapee",
+    "This plug-in loads files in Canon's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Nikon"),
+    "image/x-nikon-nef,image/x-nikon-nrw",
+    "nef,nrw",
+    NULL,
+
+    "file-rawtherapee-nikon-load",
+    "Load files in the Nikon raw formats via rawtherapee",
+    "This plug-in loads files in Nikon's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Hasselblad"),
+    "image/x-hasselblad-3fr,image/x-hasselblad-fff",
+    "3fr,fff",
+    NULL,
+
+    "file-rawtherapee-hasselblad-load",
+    "Load files in the Hasselblad raw formats via rawtherapee",
+    "This plug-in loads files in Hasselblad's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Sony"),
+    "image/x-sony-arw,image/x-sony-srf,image/x-sony-sr2",
+    "arw,srf,sr2",
+    NULL,
+
+    "file-rawtherapee-sony-load",
+    "Load files in the Sony raw formats via rawtherapee",
+    "This plug-in loads files in Sony's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Casio BAY"),
+    "image/x-casio-bay",
+    "bay",
+    NULL,
+
+    "file-rawtherapee-bay-load",
+    "Load files in the BAY raw format via rawtherapee",
+    "This plug-in loads files in Casio's raw BAY format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Phantom Software CINE"),
+    "", /* FIXME: find a mime type */
+    "cine,cin",
+    NULL,
+
+    "file-rawtherapee-cine-load",
+    "Load files in the CINE raw format via rawtherapee",
+    "This plug-in loads files in Phantom Software's raw CINE format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Sinar"),
+    "", /* FIXME: find a mime type */
+    "cs1,ia,sti",
+    NULL,
+
+    "file-rawtherapee-sinar-load",
+    "Load files in the Sinar raw formats via rawtherapee",
+    "This plug-in loads files in Sinar's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Kodak"),
+    "image/x-kodak-dc2,image/x-kodak-dcr,image/x-kodak-kdc,image/x-kodak-k25,image/x-kodak-kc2",
+    "dc2,dcr,kdc,k25,kc2",
+    NULL,
+
+    "file-rawtherapee-kodak-load",
+    "Load files in the Kodak raw formats via rawtherapee",
+    "This plug-in loads files in Kodak's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Adobe DNG Digital Negative"),
+    "image/x-adobe-dng",
+    "dng",
+    NULL,
+
+    "file-rawtherapee-dng-load",
+    "Load files in the DNG raw format via rawtherapee",
+    "This plug-in loads files in the Adobe Digital Negative DNG format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Epson ERF"),
+    "image/x-epson-erf",
+    "erf",
+    NULL,
+
+    "file-rawtherapee-erf-load",
+    "Load files in the ERF raw format via rawtherapee",
+    "This plug-in loads files in Epson's raw ERF format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Phase One"),
+    "image/x-phaseone-cap,image/x-phaseone-iiq",
+    "cap,iiq",
+    NULL,
+
+    "file-rawtherapee-phaseone-load",
+    "Load files in the Phase One raw formats via rawtherapee",
+    "This plug-in loads files in Phase One's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Minolta"),
+    "image/x-minolta-mdc,image/x-minolta-mrw",
+    "mdc,mrw",
+    NULL,
+
+    "file-rawtherapee-minolta-load",
+    "Load files in the Minolta raw formats via rawtherapee",
+    "This plug-in loads files in Minolta's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Mamiya MEF"),
+    "image/x-mamiya-mef",
+    "mef", NULL,
+
+    "file-rawtherapee-mef-load",
+    "Load files in the MEF raw format via rawtherapee",
+    "This plug-in loads files in Mamiya's raw MEF format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Leaf MOS"),
+    "image/x-leaf-mos",
+    "mos",
+    NULL,
+
+    "file-rawtherapee-mos-load",
+    "Load files in the MOS raw format via rawtherapee",
+    "This plug-in loads files in Leaf's raw MOS format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Olympus ORF"),
+    "image/x-olympus-orf",
+    "orf",
+    NULL,
+
+    "file-rawtherapee-orf-load",
+    "Load files in the ORF raw format via rawtherapee",
+    "This plug-in loads files in Olympus' raw ORF format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Pentax PEF"),
+    "image/x-pentax-pef,image/x-pentax-raw",
+    "pef,raw",
+    NULL,
+
+    "file-rawtherapee-pef-load",
+    "Load files in the PEF raw format via rawtherapee",
+    "This plug-in loads files in Pentax' raw PEF format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Logitech PXN"),
+    "image/x-pxn", /* FIXME: is that the correct mime type? */
+    "pxn",
+    NULL,
+
+    "file-rawtherapee-pxn-load",
+    "Load files in the PXN raw format via rawtherapee",
+    "This plug-in loads files in Logitech's raw PXN format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Apple QuickTake QTK"),
+    "", /* FIXME: find a mime type */
+    "qtk",
+    NULL,
+
+    "file-rawtherapee-qtk-load",
+    "Load files in the QTK raw format via rawtherapee",
+    "This plug-in loads files in Apple's QuickTake QTK raw format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Fujifilm RAF"),
+    "image/x-fuji-raf",
+    "raf",
+    NULL,
+
+    "file-rawtherapee-raf-load",
+    "Load files in the RAF raw format via rawtherapee",
+    "This plug-in loads files in Fujifilm's raw RAF format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Panasonic"),
+    "image/x-panasonic-raw,image/x-panasonic-rw2",
+    "raw,rw2",
+    NULL,
+
+    "file-rawtherapee-panasonic-load",
+    "Load files in the Panasonic raw formats via rawtherapee",
+    "This plug-in loads files in Panasonic's raw formats by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Digital Foto Maker RDC"),
+    "", /* FIXME: find a mime type */
+    "rdc",
+    NULL,
+
+    "file-rawtherapee-rdc-load",
+    "Load files in the RDC raw format via rawtherapee",
+    "This plug-in loads files in Digital Foto Maker's raw RDC format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Leica RWL"),
+    "image/x-leica-rwl",
+    "rwl",
+    NULL,
+
+    "file-rawtherapee-rwl-load",
+    "Load files in the RWL raw format via rawtherapee",
+    "This plug-in loads files in Leica's raw RWL format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Samsung SRW"),
+    "image/x-samsung-srw",
+    "srw",
+    NULL,
+
+    "file-rawtherapee-srw-load",
+    "Load files in the SRW raw format via rawtherapee",
+    "This plug-in loads files in Samsung's raw SRW format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Sigma X3F"),
+    "image/x-sigma-x3f",
+    "x3f",
+    NULL,
+
+    "file-rawtherapee-x3f-load",
+    "Load files in the X3F raw format via rawtherapee",
+    "This plug-in loads files in Sigma's raw X3F format by calling rawtherapee."
+  },
+
+  {
+    N_("Raw Arriflex ARI"),
+    "",
+    "ari",
+    NULL,
+
+    "file-rawtherapee-ari-load",
+    "Load files in the ARI raw format via rawtherapee",
+    "This plug-in loads files in Arriflex' raw ARI format by calling rawtherapee."
+  }
+};

tools/gimp-plugin/file-rawtherapee.c

@@ -0,0 +1,424 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * file-rawtherapee.c -- raw file format plug-in that uses RawTherapee
+ * Copyright (C) 2012 Simon Budig <simon@gimp.org>
+ * Copyright (C) 2016 Tobias Ellinghaus <me@houz.org>
+ * Copyright (C) 2017 Alberto Griggio <alberto.griggio@gmail.com>
+ *
+ * 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 <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include <glib/gstdio.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+//#include "libgimp/stdplugins-intl.h"
+
+#include "file-formats.h"
+
+
+#define LOAD_THUMB_PROC "file-rawtherapee-load-thumb"
+
+
+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,
+                                      GimpRunMode       run_mode,
+                                      GError          **error);
+
+static gint32   load_thumbnail_image (const gchar      *filename,
+                                      gint             thumb_size,
+                                      GError          **error);
+
+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 thumb_args[] =
+  {
+    { GIMP_PDB_STRING, "filename",     "The name of the file to load"  },
+    { GIMP_PDB_INT32,  "thumb-size",   "Preferred thumbnail size"      }
+  };
+
+  static const GimpParamDef thumb_return_vals[] =
+  {
+    { GIMP_PDB_IMAGE,  "image",        "Thumbnail image"               }
+  };
+
+  /* check if rawtherapee is installed
+   * TODO: allow setting the location of the executable in preferences
+   */
+  gchar    *argv[]           = { "rawtherapee", "-v", NULL };
+  gchar    *rawtherapee_stdout = NULL;
+  gboolean  have_rawtherapee   = FALSE;
+  gint      i;
+
+  if (g_spawn_sync (NULL,
+                    argv,
+                    NULL,
+                    G_SPAWN_STDERR_TO_DEV_NULL |
+                    G_SPAWN_SEARCH_PATH,
+                    NULL,
+                    NULL,
+                    &rawtherapee_stdout,
+                    NULL,
+                    NULL,
+                    NULL))
+    {
+      char *rtversion = NULL;
+
+      if (sscanf (rawtherapee_stdout,
+                  "RawTherapee, version %ms",
+                  &rtversion) == 1)
+        {
+          have_rawtherapee = TRUE;
+          free(rtversion);
+        }
+
+      g_free (rawtherapee_stdout);
+    }
+
+  if (! have_rawtherapee)
+    return;
+
+  gimp_install_procedure (LOAD_THUMB_PROC,
+                          "Load thumbnail from a raw image via rawtherapee",
+                          "This plug-in loads a thumbnail from a raw image by calling rawtherapee-cli.",
+                          "Alberto Griggio",
+                          "Alberto Griggio",
+                          "2017",
+                          NULL,
+                          NULL,
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (thumb_args),
+                          G_N_ELEMENTS (thumb_return_vals),
+                          thumb_args, thumb_return_vals);
+
+  for (i = 0; i < G_N_ELEMENTS (file_formats); i++)
+    {
+      const FileFormat *format = &file_formats[i];
+
+      gimp_install_procedure (format->load_proc,
+                              format->load_blurb,
+                              format->load_help,
+                              "Alberto Griggio",
+                              "Alberto Griggio",
+                              "2017",
+                              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_file_handler_raw (format->load_proc);
+      gimp_register_magic_load_handler (format->load_proc,
+                                        format->extensions,
+                                        "",
+                                        format->magic);
+
+      gimp_register_thumbnail_loader (format->load_proc, LOAD_THUMB_PROC);
+    }
+}
+
+static void
+run (const gchar      *name,
+     gint              nparams,
+     const GimpParam  *param,
+     gint             *nreturn_vals,
+     GimpParam       **return_vals)
+{
+  static GimpParam   values[6];
+  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
+  GimpRunMode        run_mode;
+  gint               image_ID;
+  GError            *error = NULL;
+  gint               i;
+
+//  INIT_I18N ();
+
+  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;
+
+  /* check if the format passed is actually supported & load */
+  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, run_mode, &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 (! strcmp (name, LOAD_THUMB_PROC))
+        {
+          image_ID = load_thumbnail_image (param[0].data.d_string,
+                                           param[1].data.d_int32,
+                                           &error);
+
+          if (image_ID != -1)
+            {
+              *nreturn_vals = 4;
+              values[1].type         = GIMP_PDB_IMAGE;
+              values[1].data.d_image = image_ID;
+              values[4].type         = GIMP_PDB_INT32;
+              values[4].data.d_int32 = GIMP_RGB_IMAGE;
+              values[5].type         = GIMP_PDB_INT32;
+              values[5].data.d_int32 = 1; /* num_layers */
+            }
+          else
+            {
+              status = GIMP_PDB_EXECUTION_ERROR;
+            }
+
+          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;
+}
+
+static gint32
+load_image (const gchar  *filename,
+            GimpRunMode   run_mode,
+            GError      **error)
+{
+  gint32  image_ID        = -1;
+  gchar  *filename_out    = gimp_temp_name ("tif");
+
+  gchar *rawtherapee_stdout = NULL;
+
+  /* linear sRGB for now as GIMP uses that internally in many places anyway */
+  gchar *argv[] =
+    {
+      "rawtherapee",
+      "-gimp",
+      (gchar *) filename,
+      filename_out,
+      NULL
+    };
+
+  gimp_progress_init_printf (_("Opening '%s'"),
+                             gimp_filename_to_utf8 (filename));
+
+  if (g_spawn_sync (NULL,
+                    argv,
+                    NULL,
+//                     G_SPAWN_STDOUT_TO_DEV_NULL |
+                    G_SPAWN_STDERR_TO_DEV_NULL |
+                    G_SPAWN_SEARCH_PATH,
+                    NULL,
+                    NULL,
+                    &rawtherapee_stdout,
+                    NULL,
+                    NULL,
+                    error))
+    {
+      image_ID = gimp_file_load (run_mode, filename_out, filename_out);
+      if (image_ID != -1)
+        gimp_image_set_filename (image_ID, filename);
+    }
+
+// if (rawtherapee_stdout) printf ("%s\n", rawtherapee_stdout);
+  g_free(rawtherapee_stdout);
+
+  g_unlink (filename_out);
+  g_free (filename_out);
+
+  gimp_progress_update (1.0);
+
+  return image_ID;
+}
+
+static gint32
+load_thumbnail_image (const gchar   *filename,
+                      gint           thumb_size,
+                      GError       **error)
+{
+  gint32  image_ID         = -1;
+  gchar  *filename_out     = gimp_temp_name ("jpg");
+  gchar  *thumb_pp3        = gimp_temp_name ("pp3");
+  gchar  *size             = g_strdup_printf ("%d", thumb_size);
+  FILE   *thumb_pp3_f      = fopen(thumb_pp3, "w");
+  gboolean pp3_ok          = FALSE;
+  gchar  *rawtherapee_stdout = NULL;
+  const char *pp3_content =
+    "[Version]\n"
+    "AppVersion=5.0\n"
+    "Version=326\n"
+    "\n"
+    "[Resize]\n"
+    "Enabled=true\n"
+    "AppliesTo=Cropped area\n"
+    "Method=Lanczos\n"
+    "Width=%d\n"
+    "Height=%d\n"
+    "\n"
+    "[Sharpening]\n"
+    "Enabled=false\n"
+    "\n"
+    "[SharpenEdge]\n"
+    "Enabled=false\n"
+    "\n"
+    "[SharpenMicro]\n"
+    "Enabled=false\n"
+    "\n"
+    "[Defringing]\n"
+    "Enabled=false\n"
+    "\n"
+    "[Directional Pyramid Equalizer]\n"
+    "Enabled=false\n"
+    "\n"
+    "[PostResizeSharpening]\n"
+    "Enabled=false\n"
+    "\n"
+    "[Directional Pyramid Denoising]\n"
+    "Enabled=false\n"
+    "\n"
+    "[Impulse Denoising]\n"
+    "Enabled=false\n"
+    "\n"
+    "[Wavelet]\n"
+    "Enabled=false\n"
+    "\n"
+    "[RAW Bayer]\n"
+    "Method=fast\n"
+    "\n"
+    "[RAW X-Trans]\n"
+    "Method=fast\n";
+ 
+
+  gchar *argv[] =
+    {
+      "rawtherapee-cli",
+      "-o", filename_out,
+      "-d",
+      "-s",
+      "-j",
+      "-p", thumb_pp3,
+      "-f",
+      "-c", (char *) filename,
+      NULL
+    };
+
+  if (thumb_pp3_f) {
+    if (fprintf(thumb_pp3_f, pp3_content, thumb_size, thumb_size) < 0) {
+      fclose(thumb_pp3_f);
+      thumb_pp3_f = NULL;
+    }
+  }
+
+  gimp_progress_init_printf (_("Opening thumbnail for '%s'"),
+                             gimp_filename_to_utf8 (filename));
+
+  if (thumb_pp3_f &&
+      g_spawn_sync (NULL,
+                    argv,
+                    NULL,
+                    G_SPAWN_STDERR_TO_DEV_NULL |
+                    G_SPAWN_SEARCH_PATH,
+                    NULL,
+                    NULL,
+                    &rawtherapee_stdout,
+                    NULL,
+                    NULL,
+                    error))
+    {
+      gimp_progress_update (0.5);
+
+      image_ID = gimp_file_load (GIMP_RUN_NONINTERACTIVE,
+                                 filename_out,
+                                 filename_out);
+      if (image_ID != -1)
+        {
+          /* is this needed for thumbnails? */
+          gimp_image_set_filename (image_ID, filename);
+        }
+    }
+
+  gimp_progress_update (1.0);
+
+  if (thumb_pp3_f) {
+    fclose(thumb_pp3_f);
+  }
+  g_unlink (thumb_pp3);
+  g_free (filename_out);
+  g_free (thumb_pp3);
+  g_free (rawtherapee_stdout);
+
+  return image_ID;
+}