Adding upstream version 2.10.34.upstream/2.10.34upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1063 insertions, 0 deletions

diff --git a/app/plug-in/gimpplugin-message.c b/app/plug-in/gimpplugin-message.c
new file mode 100644
index 0000000..b27035e
--- /dev/null
+++ b/app/plug-in/gimpplugin-message.c
@@ -0,0 +1,1063 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpplugin-message.c
+ *
+ * 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 <string.h>
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpbase/gimpprotocol.h"
+#include "libgimpbase/gimpwire.h"
+
+#include "plug-in-types.h"
+
+#include "gegl/gimp-babl.h"
+#include "gegl/gimp-babl-compat.h"
+#include "gegl/gimp-gegl-tile-compat.h"
+
+#include "core/gimp.h"
+#include "core/gimpdrawable.h"
+#include "core/gimpdrawable-shadow.h"
+
+#include "pdb/gimp-pdb-compat.h"
+#include "pdb/gimppdb.h"
+#include "pdb/gimppdberror.h"
+
+#include "gimpplugin.h"
+#include "gimpplugin-cleanup.h"
+#include "gimpplugin-message.h"
+#include "gimppluginmanager.h"
+#include "gimpplugindef.h"
+#include "gimppluginshm.h"
+#include "gimptemporaryprocedure.h"
+#include "plug-in-params.h"
+
+#include "gimp-intl.h"
+
+
+/*  local function prototypes  */
+
+static void gimp_plug_in_handle_quit             (GimpPlugIn      *plug_in);
+static void gimp_plug_in_handle_tile_request     (GimpPlugIn      *plug_in,
+                                                  GPTileReq       *request);
+static void gimp_plug_in_handle_tile_put         (GimpPlugIn      *plug_in,
+                                                  GPTileReq       *request);
+static void gimp_plug_in_handle_tile_get         (GimpPlugIn      *plug_in,
+                                                  GPTileReq       *request);
+static void gimp_plug_in_handle_proc_run         (GimpPlugIn      *plug_in,
+                                                  GPProcRun       *proc_run);
+static void gimp_plug_in_handle_proc_return      (GimpPlugIn      *plug_in,
+                                                  GPProcReturn    *proc_return);
+static void gimp_plug_in_handle_temp_proc_return (GimpPlugIn      *plug_in,
+                                                  GPProcReturn    *proc_return);
+static void gimp_plug_in_handle_proc_install     (GimpPlugIn      *plug_in,
+                                                  GPProcInstall   *proc_install);
+static void gimp_plug_in_handle_proc_uninstall   (GimpPlugIn      *plug_in,
+                                                  GPProcUninstall *proc_uninstall);
+static void gimp_plug_in_handle_extension_ack    (GimpPlugIn      *plug_in);
+static void gimp_plug_in_handle_has_init         (GimpPlugIn      *plug_in);
+
+
+/*  public functions  */
+
+void
+gimp_plug_in_handle_message (GimpPlugIn      *plug_in,
+                             GimpWireMessage *msg)
+{
+  g_return_if_fail (GIMP_IS_PLUG_IN (plug_in));
+  g_return_if_fail (plug_in->open == TRUE);
+  g_return_if_fail (msg != NULL);
+
+  switch (msg->type)
+    {
+    case GP_QUIT:
+      gimp_plug_in_handle_quit (plug_in);
+      break;
+
+    case GP_CONFIG:
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent a CONFIG message.  This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+      break;
+
+    case GP_TILE_REQ:
+      gimp_plug_in_handle_tile_request (plug_in, msg->data);
+      break;
+
+    case GP_TILE_ACK:
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent a TILE_ACK message.  This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+      break;
+
+    case GP_TILE_DATA:
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent a TILE_DATA message.  This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+      break;
+
+    case GP_PROC_RUN:
+      gimp_plug_in_handle_proc_run (plug_in, msg->data);
+      break;
+
+    case GP_PROC_RETURN:
+      gimp_plug_in_handle_proc_return (plug_in, msg->data);
+      break;
+
+    case GP_TEMP_PROC_RUN:
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent a TEMP_PROC_RUN message.  This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+      break;
+
+    case GP_TEMP_PROC_RETURN:
+      gimp_plug_in_handle_temp_proc_return (plug_in, msg->data);
+      break;
+
+    case GP_PROC_INSTALL:
+      gimp_plug_in_handle_proc_install (plug_in, msg->data);
+      break;
+
+    case GP_PROC_UNINSTALL:
+      gimp_plug_in_handle_proc_uninstall (plug_in, msg->data);
+      break;
+
+    case GP_EXTENSION_ACK:
+      gimp_plug_in_handle_extension_ack (plug_in);
+      break;
+
+    case GP_HAS_INIT:
+      gimp_plug_in_handle_has_init (plug_in);
+      break;
+    }
+}
+
+
+/*  private functions  */
+
+static void
+gimp_plug_in_handle_quit (GimpPlugIn *plug_in)
+{
+  gimp_plug_in_close (plug_in, FALSE);
+}
+
+static void
+gimp_plug_in_handle_tile_request (GimpPlugIn *plug_in,
+                                  GPTileReq  *request)
+{
+  g_return_if_fail (request != NULL);
+
+  if (request->drawable_ID == -1)
+    gimp_plug_in_handle_tile_put (plug_in, request);
+  else
+    gimp_plug_in_handle_tile_get (plug_in, request);
+}
+
+static void
+gimp_plug_in_handle_tile_put (GimpPlugIn *plug_in,
+                              GPTileReq  *request)
+{
+  GPTileData       tile_data;
+  GPTileData      *tile_info;
+  GimpWireMessage  msg;
+  GimpDrawable    *drawable;
+  GeglBuffer      *buffer;
+  const Babl      *format;
+  GeglRectangle    tile_rect;
+
+  tile_data.drawable_ID = -1;
+  tile_data.tile_num    = 0;
+  tile_data.shadow      = 0;
+  tile_data.bpp         = 0;
+  tile_data.width       = 0;
+  tile_data.height      = 0;
+  tile_data.use_shm     = (plug_in->manager->shm != NULL);
+  tile_data.data        = NULL;
+
+  if (! gp_tile_data_write (plug_in->my_write, &tile_data, plug_in))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "%s: ERROR", G_STRFUNC);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  if (! gimp_wire_read_msg (plug_in->my_read, &msg, plug_in))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "%s: ERROR", G_STRFUNC);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  if (msg.type != GP_TILE_DATA)
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "expected tile data and received: %d", msg.type);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  tile_info = msg.data;
+
+  drawable = (GimpDrawable *) gimp_item_get_by_ID (plug_in->manager->gimp,
+                                                   tile_info->drawable_ID);
+
+  if (! GIMP_IS_DRAWABLE (drawable))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "tried writing to invalid drawable %d (killing)",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file),
+                    tile_info->drawable_ID);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+  else if (gimp_item_is_removed (GIMP_ITEM (drawable)))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "tried writing to drawable %d which was removed "
+                    "from the image (killing)",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file),
+                    tile_info->drawable_ID);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  if (tile_info->shadow)
+    {
+
+      /*  don't check whether the drawable is a group or locked here,
+       *  the plugin will get a proper error message when it tries to
+       *  merge the shadow tiles, which is much better than just
+       *  killing it.
+       */
+      buffer = gimp_drawable_get_shadow_buffer (drawable);
+
+      gimp_plug_in_cleanup_add_shadow (plug_in, drawable);
+    }
+  else
+    {
+      if (gimp_item_is_content_locked (GIMP_ITEM (drawable)))
+        {
+          gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                        "Plug-in \"%s\"\n(%s)\n\n"
+                        "tried writing to a locked drawable %d (killing)",
+                        gimp_object_get_name (plug_in),
+                        gimp_file_get_utf8_name (plug_in->file),
+                        tile_info->drawable_ID);
+          gimp_plug_in_close (plug_in, TRUE);
+          return;
+        }
+      else if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
+        {
+          gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                        "Plug-in \"%s\"\n(%s)\n\n"
+                        "tried writing to a group layer %d (killing)",
+                        gimp_object_get_name (plug_in),
+                        gimp_file_get_utf8_name (plug_in->file),
+                        tile_info->drawable_ID);
+          gimp_plug_in_close (plug_in, TRUE);
+          return;
+        }
+
+      buffer = gimp_drawable_get_buffer (drawable);
+    }
+
+  if (! gimp_gegl_buffer_get_tile_rect (buffer,
+                                        GIMP_PLUG_IN_TILE_WIDTH,
+                                        GIMP_PLUG_IN_TILE_HEIGHT,
+                                        tile_info->tile_num,
+                                        &tile_rect))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "requested invalid tile (killing)",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  format = gegl_buffer_get_format (buffer);
+
+  if (! gimp_plug_in_precision_enabled (plug_in))
+    {
+      format = gimp_babl_compat_u8_format (format);
+    }
+
+  if (tile_data.use_shm)
+    {
+      gegl_buffer_set (buffer, &tile_rect, 0, format,
+                       gimp_plug_in_shm_get_addr (plug_in->manager->shm),
+                       GEGL_AUTO_ROWSTRIDE);
+    }
+  else
+    {
+      gegl_buffer_set (buffer, &tile_rect, 0, format,
+                       tile_info->data,
+                       GEGL_AUTO_ROWSTRIDE);
+    }
+
+  gimp_wire_destroy (&msg);
+
+  if (! gp_tile_ack_write (plug_in->my_write, plug_in))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "%s: ERROR", G_STRFUNC);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+}
+
+static void
+gimp_plug_in_handle_tile_get (GimpPlugIn *plug_in,
+                              GPTileReq  *request)
+{
+  GPTileData       tile_data;
+  GimpWireMessage  msg;
+  GimpDrawable    *drawable;
+  GeglBuffer      *buffer;
+  const Babl      *format;
+  GeglRectangle    tile_rect;
+  gint             tile_size;
+
+  drawable = (GimpDrawable *) gimp_item_get_by_ID (plug_in->manager->gimp,
+                                                   request->drawable_ID);
+
+  if (! GIMP_IS_DRAWABLE (drawable))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "tried reading from invalid drawable %d (killing)",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file),
+                    request->drawable_ID);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+  else if (gimp_item_is_removed (GIMP_ITEM (drawable)))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "tried reading from drawable %d which was removed "
+                    "from the image (killing)",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file),
+                    request->drawable_ID);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  if (request->shadow)
+    {
+      buffer = gimp_drawable_get_shadow_buffer (drawable);
+
+      gimp_plug_in_cleanup_add_shadow (plug_in, drawable);
+    }
+  else
+    {
+      buffer = gimp_drawable_get_buffer (drawable);
+    }
+
+  if (! gimp_gegl_buffer_get_tile_rect (buffer,
+                                        GIMP_PLUG_IN_TILE_WIDTH,
+                                        GIMP_PLUG_IN_TILE_HEIGHT,
+                                        request->tile_num,
+                                        &tile_rect))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "requested invalid tile (killing)",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  format = gegl_buffer_get_format (buffer);
+
+  if (! gimp_plug_in_precision_enabled (plug_in))
+    {
+      format = gimp_babl_compat_u8_format (format);
+    }
+
+  tile_size = (babl_format_get_bytes_per_pixel (format) *
+               tile_rect.width * tile_rect.height);
+
+  tile_data.drawable_ID = request->drawable_ID;
+  tile_data.tile_num    = request->tile_num;
+  tile_data.shadow      = request->shadow;
+  tile_data.bpp         = babl_format_get_bytes_per_pixel (format);
+  tile_data.width       = tile_rect.width;
+  tile_data.height      = tile_rect.height;
+  tile_data.use_shm     = (plug_in->manager->shm != NULL);
+
+  if (tile_data.use_shm)
+    {
+      gegl_buffer_get (buffer, &tile_rect, 1.0, format,
+                       gimp_plug_in_shm_get_addr (plug_in->manager->shm),
+                       GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+    }
+  else
+    {
+      tile_data.data = g_malloc (tile_size);
+
+      gegl_buffer_get (buffer, &tile_rect, 1.0, format,
+                       tile_data.data,
+                       GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+    }
+
+  if (! gp_tile_data_write (plug_in->my_write, &tile_data, plug_in))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "%s: ERROR", G_STRFUNC);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  if (! gimp_wire_read_msg (plug_in->my_read, &msg, plug_in))
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "%s: ERROR", G_STRFUNC);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  if (msg.type != GP_TILE_ACK)
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "expected tile ack and received: %d", msg.type);
+      gimp_plug_in_close (plug_in, TRUE);
+      return;
+    }
+
+  gimp_wire_destroy (&msg);
+}
+
+static void
+gimp_plug_in_handle_proc_error (GimpPlugIn          *plug_in,
+                                GimpPlugInProcFrame *proc_frame,
+                                const gchar         *name,
+                                const GError        *error)
+{
+  switch (proc_frame->error_handler)
+    {
+    case GIMP_PDB_ERROR_HANDLER_INTERNAL:
+      if (error->domain == GIMP_PDB_ERROR)
+        {
+          gimp_message (plug_in->manager->gimp,
+                        G_OBJECT (proc_frame->progress),
+                        GIMP_MESSAGE_ERROR,
+                        _("Calling error for procedure '%s':\n"
+                          "%s"),
+                        name, error->message);
+        }
+      else
+        {
+          gimp_message (plug_in->manager->gimp,
+                        G_OBJECT (proc_frame->progress),
+                        GIMP_MESSAGE_ERROR,
+                        _("Execution error for procedure '%s':\n"
+                          "%s"),
+                        name, error->message);
+        }
+      break;
+
+    case GIMP_PDB_ERROR_HANDLER_PLUGIN:
+      /*  the plug-in is responsible for handling this error  */
+      break;
+    }
+}
+
+static void
+gimp_plug_in_handle_proc_run (GimpPlugIn *plug_in,
+                              GPProcRun  *proc_run)
+{
+  GimpPlugInProcFrame *proc_frame;
+  gchar               *canonical;
+  const gchar         *proc_name   = NULL;
+  GimpProcedure       *procedure;
+  GimpValueArray      *args        = NULL;
+  GimpValueArray      *return_vals = NULL;
+  GError              *error       = NULL;
+
+  g_return_if_fail (proc_run != NULL);
+  g_return_if_fail (proc_run->name != NULL);
+
+  canonical = gimp_canonicalize_identifier (proc_run->name);
+
+  proc_frame = gimp_plug_in_get_proc_frame (plug_in);
+
+  procedure = gimp_pdb_lookup_procedure (plug_in->manager->gimp->pdb,
+                                         canonical);
+
+  if (! procedure)
+    {
+      proc_name = gimp_pdb_lookup_compat_proc_name (plug_in->manager->gimp->pdb,
+                                                    canonical);
+
+      if (proc_name)
+        {
+          procedure = gimp_pdb_lookup_procedure (plug_in->manager->gimp->pdb,
+                                                 proc_name);
+
+          if (plug_in->manager->gimp->pdb_compat_mode == GIMP_PDB_COMPAT_WARN)
+            {
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_WARNING,
+                            "Plug-in \"%s\"\n(%s)\n"
+                            "called deprecated procedure '%s'.\n"
+                            "It should call '%s' instead!",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            canonical, proc_name);
+            }
+        }
+    }
+  else if (procedure->deprecated)
+    {
+      if (plug_in->manager->gimp->pdb_compat_mode == GIMP_PDB_COMPAT_WARN)
+        {
+          if (! strcmp (procedure->deprecated, "NONE"))
+            {
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_WARNING,
+                            "Plug-in \"%s\"\n(%s)\n"
+                            "called deprecated procedure '%s'.",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            canonical);
+            }
+          else
+            {
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_WARNING,
+                            "WARNING: Plug-in \"%s\"\n(%s)\n"
+                            "called deprecated procedure '%s'.\n"
+                            "It should call '%s' instead!",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            canonical, procedure->deprecated);
+            }
+        }
+    }
+
+  if (! proc_name)
+    proc_name = canonical;
+
+  args = plug_in_params_to_args (procedure ? procedure->args     : NULL,
+                                 procedure ? procedure->num_args : 0,
+                                 proc_run->params, proc_run->nparams,
+                                 FALSE, FALSE);
+
+  /*  Execute the procedure even if gimp_pdb_lookup_procedure()
+   *  returned NULL, gimp_pdb_execute_procedure_by_name_args() will
+   *  return appropriate error return_vals.
+   */
+  gimp_plug_in_manager_plug_in_push (plug_in->manager, plug_in);
+  return_vals = gimp_pdb_execute_procedure_by_name_args (plug_in->manager->gimp->pdb,
+                                                         proc_frame->context_stack ?
+                                                         proc_frame->context_stack->data :
+                                                         proc_frame->main_context,
+                                                         proc_frame->progress,
+                                                         &error,
+                                                         proc_name,
+                                                         args);
+  gimp_plug_in_manager_plug_in_pop (plug_in->manager);
+
+  gimp_value_array_unref (args);
+
+  if (error)
+    {
+      gimp_plug_in_handle_proc_error (plug_in, proc_frame,
+                                      canonical, error);
+      g_error_free (error);
+    }
+
+  g_free (canonical);
+
+  /*  Don't bother to send the return value if executing the procedure
+   *  closed the plug-in (e.g. if the procedure is gimp-quit)
+   */
+  if (plug_in->open)
+    {
+      GPProcReturn proc_return;
+
+      /*  Return the name we got called with, *not* proc_name or canonical,
+       *  since proc_name may have been remapped by gimp->procedural_compat_ht
+       *  and canonical may be different too.
+       */
+      proc_return.name    = proc_run->name;
+      proc_return.nparams = gimp_value_array_length (return_vals);
+      proc_return.params  = plug_in_args_to_params (return_vals, FALSE);
+
+      if (! gp_proc_return_write (plug_in->my_write, &proc_return, plug_in))
+        {
+          gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                        "%s: ERROR", G_STRFUNC);
+          gimp_plug_in_close (plug_in, TRUE);
+        }
+
+      g_free (proc_return.params);
+    }
+
+  gimp_value_array_unref (return_vals);
+}
+
+static void
+gimp_plug_in_handle_proc_return (GimpPlugIn   *plug_in,
+                                 GPProcReturn *proc_return)
+{
+  GimpPlugInProcFrame *proc_frame = &plug_in->main_proc_frame;
+
+  g_return_if_fail (proc_return != NULL);
+
+  proc_frame->return_vals =
+    plug_in_params_to_args (proc_frame->procedure->values,
+                            proc_frame->procedure->num_values,
+                            proc_return->params,
+                            proc_return->nparams,
+                            TRUE, TRUE);
+
+  if (proc_frame->main_loop)
+    {
+      g_main_loop_quit (proc_frame->main_loop);
+    }
+  else
+    {
+      /*  the plug-in is run asynchronously, so display its error
+       *  messages here because nobody else will do it
+       */
+      gimp_plug_in_procedure_handle_return_values (GIMP_PLUG_IN_PROCEDURE (proc_frame->procedure),
+                                                   plug_in->manager->gimp,
+                                                   proc_frame->progress,
+                                                   proc_frame->return_vals);
+    }
+
+  gimp_plug_in_close (plug_in, FALSE);
+}
+
+static void
+gimp_plug_in_handle_temp_proc_return (GimpPlugIn   *plug_in,
+                                      GPProcReturn *proc_return)
+{
+  g_return_if_fail (proc_return != NULL);
+
+  if (plug_in->temp_proc_frames)
+    {
+      GimpPlugInProcFrame *proc_frame = plug_in->temp_proc_frames->data;
+
+      proc_frame->return_vals =
+        plug_in_params_to_args (proc_frame->procedure->values,
+                                proc_frame->procedure->num_values,
+                                proc_return->params,
+                                proc_return->nparams,
+                                TRUE, TRUE);
+
+      gimp_plug_in_main_loop_quit (plug_in);
+      gimp_plug_in_proc_frame_pop (plug_in);
+    }
+  else
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent a TEMP_PROC_RETURN message while not running "
+                    "a temporary procedure.  This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+    }
+}
+
+static void
+gimp_plug_in_handle_proc_install (GimpPlugIn    *plug_in,
+                                  GPProcInstall *proc_install)
+{
+  GimpPlugInProcedure *proc       = NULL;
+  GimpProcedure       *procedure  = NULL;
+  gchar               *canonical;
+  gboolean             null_name  = FALSE;
+  gboolean             valid_utf8 = FALSE;
+  gint                 i;
+
+  g_return_if_fail (proc_install != NULL);
+  g_return_if_fail (proc_install->name != NULL);
+
+  canonical = gimp_canonicalize_identifier (proc_install->name);
+
+  /*  Sanity check for array arguments  */
+
+  for (i = 1; i < proc_install->nparams; i++)
+    {
+      if ((proc_install->params[i].type == GIMP_PDB_INT32ARRAY ||
+           proc_install->params[i].type == GIMP_PDB_INT8ARRAY  ||
+           proc_install->params[i].type == GIMP_PDB_FLOATARRAY ||
+           proc_install->params[i].type == GIMP_PDB_STRINGARRAY ||
+           proc_install->params[i].type == GIMP_PDB_COLORARRAY)
+          &&
+          proc_install->params[i - 1].type != GIMP_PDB_INT32)
+        {
+          gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                        "Plug-in \"%s\"\n(%s)\n\n"
+                        "attempted to install procedure \"%s\" "
+                        "which fails to comply with the array parameter "
+                        "passing standard.  Argument %d is noncompliant.",
+                        gimp_object_get_name (plug_in),
+                        gimp_file_get_utf8_name (plug_in->file),
+                        canonical, i);
+          g_free (canonical);
+          return;
+        }
+    }
+
+  /*  Sanity check strings for UTF-8 validity  */
+
+#define VALIDATE(str)         (g_utf8_validate ((str), -1, NULL))
+#define VALIDATE_OR_NULL(str) ((str) == NULL || g_utf8_validate ((str), -1, NULL))
+
+  if (VALIDATE_OR_NULL (proc_install->menu_path) &&
+      VALIDATE         (canonical)               &&
+      VALIDATE_OR_NULL (proc_install->blurb)     &&
+      VALIDATE_OR_NULL (proc_install->help)      &&
+      VALIDATE_OR_NULL (proc_install->author)    &&
+      VALIDATE_OR_NULL (proc_install->copyright) &&
+      VALIDATE_OR_NULL (proc_install->date))
+    {
+      null_name  = FALSE;
+      valid_utf8 = TRUE;
+
+      for (i = 0; i < proc_install->nparams && valid_utf8 && !null_name; i++)
+        {
+          if (! proc_install->params[i].name)
+            {
+              null_name = TRUE;
+            }
+          else if (! (VALIDATE         (proc_install->params[i].name) &&
+                      VALIDATE_OR_NULL (proc_install->params[i].description)))
+            {
+              valid_utf8 = FALSE;
+            }
+        }
+
+      for (i = 0; i < proc_install->nreturn_vals && valid_utf8 && !null_name; i++)
+        {
+          if (! proc_install->return_vals[i].name)
+            {
+              null_name = TRUE;
+            }
+          else if (! (VALIDATE         (proc_install->return_vals[i].name) &&
+                      VALIDATE_OR_NULL (proc_install->return_vals[i].description)))
+            {
+              valid_utf8 = FALSE;
+            }
+        }
+    }
+
+#undef VALIDATE
+#undef VALIDATE_OR_NULL
+
+  if (null_name)
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "attempted to install procedure \"%s\" with a "
+                    "NULL parameter name.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file),
+                    canonical);
+      g_free (canonical);
+      return;
+    }
+
+  if (! valid_utf8)
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "attempted to install procedure \"%s\" with "
+                    "invalid UTF-8 strings.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file),
+                    canonical);
+      g_free (canonical);
+      return;
+    }
+
+  if (proc_install->menu_path && strlen (proc_install->menu_path) &&
+      proc_install->menu_path[0] == '<')
+    {
+      g_printerr ("Plug-in \"%s\"\n(%s) "
+                  "is installing procedure \"%s\" with a full "
+                  "menu path \"%s\" as menu label, this deprecated and will "
+                  "be an error in GIMP 3.0\n",
+                  gimp_object_get_name (plug_in),
+                  gimp_file_get_utf8_name (plug_in->file),
+                  canonical,
+                  proc_install->menu_path);
+    }
+
+  /*  Create the procedure object  */
+
+  switch (proc_install->type)
+    {
+    case GIMP_PLUGIN:
+    case GIMP_EXTENSION:
+      procedure = gimp_plug_in_procedure_new (proc_install->type,
+                                              plug_in->file);
+      break;
+
+    case GIMP_TEMPORARY:
+      procedure = gimp_temporary_procedure_new (plug_in);
+      break;
+    }
+
+  proc = GIMP_PLUG_IN_PROCEDURE (procedure);
+
+  proc->mtime                 = time (NULL);
+  proc->installed_during_init = (plug_in->call_mode == GIMP_PLUG_IN_CALL_INIT);
+
+  gimp_object_take_name (GIMP_OBJECT (procedure), canonical);
+  gimp_procedure_set_strings (procedure,
+                              proc_install->name,
+                              proc_install->blurb,
+                              proc_install->help,
+                              proc_install->author,
+                              proc_install->copyright,
+                              proc_install->date,
+                              NULL);
+
+  gimp_plug_in_procedure_set_image_types (proc, proc_install->image_types);
+
+  for (i = 0; i < proc_install->nparams; i++)
+    {
+      GParamSpec *pspec;
+      gboolean    name_valid;
+
+      pspec = gimp_pdb_compat_param_spec (plug_in->manager->gimp,
+                                          proc_install->params[i].type,
+                                          proc_install->params[i].name,
+                                          proc_install->params[i].description,
+                                          &name_valid);
+
+      gimp_procedure_add_argument (procedure, pspec);
+
+      if (pspec && ! name_valid)
+        {
+          switch (plug_in->manager->gimp->pdb_compat_mode)
+            {
+            case GIMP_PDB_COMPAT_ON:
+              break;
+
+            case GIMP_PDB_COMPAT_WARN:
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_WARNING,
+                            "Plug-in \"%s\"\n(%s)\n"
+                            "attempted to install procedure \"%s\" "
+                            "with invalid parameter name \"%s\".\n"
+                            "This is deprecated.\n"
+                            "The parameter name was changed to \"%s\".",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            gimp_object_get_name (proc),
+                            proc_install->params[i].name,
+                            pspec->name);
+              break;
+
+            case GIMP_PDB_COMPAT_OFF:
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                            "Plug-in \"%s\"\n(%s)\n"
+                            "attempted to install procedure \"%s\" "
+                            "with invalid parameter name \"%s\".\n"
+                            "This is not allowed.",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            gimp_object_get_name (proc),
+                            proc_install->params[i].name);
+
+              g_object_unref (proc);
+
+              return;
+            }
+        }
+    }
+
+  for (i = 0; i < proc_install->nreturn_vals; i++)
+    {
+      GParamSpec *pspec;
+      gboolean    name_valid;
+
+      pspec = gimp_pdb_compat_param_spec (plug_in->manager->gimp,
+                                          proc_install->return_vals[i].type,
+                                          proc_install->return_vals[i].name,
+                                          proc_install->return_vals[i].description,
+                                          &name_valid);
+
+      gimp_procedure_add_return_value (procedure, pspec);
+
+      if (pspec && ! name_valid)
+        {
+          switch (plug_in->manager->gimp->pdb_compat_mode)
+            {
+            case GIMP_PDB_COMPAT_ON:
+              break;
+
+            case GIMP_PDB_COMPAT_WARN:
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_WARNING,
+                            "Plug-in \"%s\"\n(%s)\n"
+                            "attempted to install procedure \"%s\" "
+                            "with invalid return-value name \"%s\".\n"
+                            "This is deprecated.\n"
+                            "The return-value name was changed to \"%s\".",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            gimp_object_get_name (proc),
+                            proc_install->return_vals[i].name,
+                            pspec->name);
+              break;
+
+            case GIMP_PDB_COMPAT_OFF:
+              gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                            "Plug-in \"%s\"\n(%s)\n"
+                            "attempted to install procedure \"%s\" "
+                            "with invalid return-value name \"%s\".\n"
+                            "This is not allowed.",
+                            gimp_object_get_name (plug_in),
+                            gimp_file_get_utf8_name (plug_in->file),
+                            gimp_object_get_name (proc),
+                            proc_install->return_vals[i].name);
+
+              g_object_unref (proc);
+
+              return;
+            }
+        }
+    }
+
+  /*  Sanity check menu path  */
+
+  if (proc_install->menu_path && strlen (proc_install->menu_path))
+    {
+      if (proc_install->menu_path[0] == '<')
+        {
+          GError *error = NULL;
+
+          if (! gimp_plug_in_procedure_add_menu_path (proc,
+                                                      proc_install->menu_path,
+                                                      &error))
+            {
+              gimp_message_literal (plug_in->manager->gimp,
+                                    NULL, GIMP_MESSAGE_WARNING,
+                                    error->message);
+              g_clear_error (&error);
+            }
+        }
+      else
+        {
+          proc->menu_label = g_strdup (proc_install->menu_path);
+        }
+    }
+
+  /*  Install the procedure  */
+
+  switch (proc_install->type)
+    {
+    case GIMP_PLUGIN:
+    case GIMP_EXTENSION:
+      gimp_plug_in_def_add_procedure (plug_in->plug_in_def, proc);
+      break;
+
+    case GIMP_TEMPORARY:
+      gimp_plug_in_add_temp_proc (plug_in, GIMP_TEMPORARY_PROCEDURE (proc));
+      break;
+    }
+
+  g_object_unref (proc);
+}
+
+static void
+gimp_plug_in_handle_proc_uninstall (GimpPlugIn      *plug_in,
+                                    GPProcUninstall *proc_uninstall)
+{
+  GimpPlugInProcedure *proc;
+  gchar               *canonical;
+
+  g_return_if_fail (proc_uninstall != NULL);
+  g_return_if_fail (proc_uninstall->name != NULL);
+
+  canonical = gimp_canonicalize_identifier (proc_uninstall->name);
+
+  proc = gimp_plug_in_procedure_find (plug_in->temp_procedures, canonical);
+
+  if (proc)
+    gimp_plug_in_remove_temp_proc (plug_in, GIMP_TEMPORARY_PROCEDURE (proc));
+
+  g_free (canonical);
+}
+
+static void
+gimp_plug_in_handle_extension_ack (GimpPlugIn *plug_in)
+{
+  if (plug_in->ext_main_loop)
+    {
+      g_main_loop_quit (plug_in->ext_main_loop);
+    }
+  else
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent an EXTENSION_ACK message while not being started "
+                    "as an extension.  This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+    }
+}
+
+static void
+gimp_plug_in_handle_has_init (GimpPlugIn *plug_in)
+{
+  if (plug_in->call_mode == GIMP_PLUG_IN_CALL_QUERY)
+    {
+      gimp_plug_in_def_set_has_init (plug_in->plug_in_def, TRUE);
+    }
+  else
+    {
+      gimp_message (plug_in->manager->gimp, NULL, GIMP_MESSAGE_ERROR,
+                    "Plug-in \"%s\"\n(%s)\n\n"
+                    "sent an HAS_INIT message while not in query().  "
+                    "This should not happen.",
+                    gimp_object_get_name (plug_in),
+                    gimp_file_get_utf8_name (plug_in->file));
+      gimp_plug_in_close (plug_in, TRUE);
+    }
+}