Adding upstream version 2.10.22.upstream/2.10.22upstream

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

1 files changed, 2588 insertions, 0 deletions

diff --git a/libgimp/gimp.c b/libgimp/gimp.c
new file mode 100644
index 0000000..f0734ff
--- /dev/null
+++ b/libgimp/gimp.c
@@ -0,0 +1,2588 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimp.c
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#define _GNU_SOURCE  /* for the sigaction stuff */
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifndef WAIT_ANY
+#define WAIT_ANY -1
+#endif
+
+#include <gtk/gtk.h> /* need GDK_WINDOWING_FOO defines */
+
+#ifndef G_OS_WIN32
+#include "libgimpbase/gimpsignal.h"
+
+#else
+
+#ifdef HAVE_EXCHNDL
+#include <time.h>
+#include <exchndl.h>
+#endif
+
+#include <signal.h>
+#endif
+
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+
+#if defined(USE_SYSV_SHM)
+
+#ifdef HAVE_IPC_H
+#include <sys/ipc.h>
+#endif
+
+#ifdef HAVE_SHM_H
+#include <sys/shm.h>
+#endif
+
+#elif defined(USE_POSIX_SHM)
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#endif /* USE_POSIX_SHM */
+
+#ifdef GDK_WINDOWING_QUARTZ
+#include <Cocoa/Cocoa.h>
+#endif
+
+#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
+#  ifdef STRICT
+#  undef STRICT
+#  endif
+#  define STRICT
+
+#  ifdef _WIN32_WINNT
+#  undef _WIN32_WINNT
+#  endif
+#  define _WIN32_WINNT 0x0601
+
+#  include <windows.h>
+#  include <tlhelp32.h>
+#  undef RGB
+#  define USE_WIN32_SHM 1
+#endif
+
+#include <locale.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpbase/gimpbase-private.h"
+#include "libgimpbase/gimpprotocol.h"
+#include "libgimpbase/gimpwire.h"
+
+#include "gimp.h"
+#include "gimpunitcache.h"
+
+#include "libgimp-intl.h"
+
+
+/**
+ * SECTION: gimp
+ * @title: Gimp
+ * @short_description: Main functions needed for building a GIMP plug-in.
+ *                     This header includes all other GIMP Library headers.
+ *
+ * Main functions needed for building a GIMP plug-in. This header
+ * includes all other GIMP Library headers.
+ **/
+
+
+#define TILE_MAP_SIZE (_tile_width * _tile_height * 32)
+
+#define ERRMSG_SHM_FAILED "Could not attach to gimp shared memory segment"
+
+/* Maybe this should go in a public header if we add other things to it */
+typedef enum
+{
+  GIMP_DEBUG_PID            = 1 << 0,
+  GIMP_DEBUG_FATAL_WARNINGS = 1 << 1,
+  GIMP_DEBUG_QUERY          = 1 << 2,
+  GIMP_DEBUG_INIT           = 1 << 3,
+  GIMP_DEBUG_RUN            = 1 << 4,
+  GIMP_DEBUG_QUIT           = 1 << 5,
+
+  GIMP_DEBUG_DEFAULT        = (GIMP_DEBUG_RUN | GIMP_DEBUG_FATAL_WARNINGS)
+} GimpDebugFlag;
+
+#define WRITE_BUFFER_SIZE  1024
+
+void gimp_read_expect_msg   (GimpWireMessage *msg,
+                             gint             type);
+
+
+static void       gimp_close                   (void);
+static void       gimp_debug_stop              (void);
+static void       gimp_message_func            (const gchar    *log_domain,
+                                                GLogLevelFlags  log_level,
+                                                const gchar    *message,
+                                                gpointer        data);
+static void       gimp_fatal_func              (const gchar    *log_domain,
+                                                GLogLevelFlags  flags,
+                                                const gchar    *message,
+                                                gpointer        data);
+#ifdef G_OS_WIN32
+#ifdef HAVE_EXCHNDL
+static LONG WINAPI gimp_plugin_sigfatal_handler (PEXCEPTION_POINTERS pExceptionInfo);
+#endif
+#else
+static void       gimp_plugin_sigfatal_handler (gint            sig_num);
+#endif
+static gboolean   gimp_plugin_io_error_handler (GIOChannel      *channel,
+                                                GIOCondition     cond,
+                                                gpointer         data);
+static gboolean   gimp_write                   (GIOChannel      *channel,
+                                                const guint8    *buf,
+                                                gulong           count,
+                                                gpointer         user_data);
+static gboolean   gimp_flush                   (GIOChannel      *channel,
+                                                gpointer         user_data);
+static void       gimp_loop                    (void);
+static void       gimp_config                  (GPConfig        *config);
+static void       gimp_proc_run                (GPProcRun       *proc_run);
+static void       gimp_temp_proc_run           (GPProcRun       *proc_run);
+static void       gimp_process_message         (GimpWireMessage *msg);
+static void       gimp_single_message          (void);
+static gboolean   gimp_extension_read          (GIOChannel      *channel,
+                                                GIOCondition     condition,
+                                                gpointer         data);
+
+static void       gimp_set_pdb_error           (const GimpParam *return_vals,
+                                                gint             n_return_vals);
+
+
+#if defined G_OS_WIN32 && defined HAVE_EXCHNDL
+static LPTOP_LEVEL_EXCEPTION_FILTER  _prevExceptionFilter    = NULL;
+static gchar                         *plug_in_backtrace_path = NULL;
+#endif
+
+static GIOChannel                   *_readchannel            = NULL;
+GIOChannel                          *_writechannel           = NULL;
+
+#ifdef USE_WIN32_SHM
+static HANDLE shm_handle;
+#endif
+
+static gint           _tile_width        = -1;
+static gint           _tile_height       = -1;
+static gint           _shm_ID            = -1;
+static guchar        *_shm_addr          = NULL;
+static gboolean       _show_tool_tips    = TRUE;
+static gboolean       _show_help_button  = TRUE;
+static gboolean       _export_profile    = FALSE;
+static gboolean       _export_exif       = FALSE;
+static gboolean       _export_xmp        = FALSE;
+static gboolean       _export_iptc       = FALSE;
+static GimpCheckSize  _check_size        = GIMP_CHECK_SIZE_MEDIUM_CHECKS;
+static GimpCheckType  _check_type        = GIMP_CHECK_TYPE_GRAY_CHECKS;
+static gint           _min_colors        = 144;
+static gint           _gdisp_ID          = -1;
+static gchar         *_wm_class          = NULL;
+static gchar         *_display_name      = NULL;
+static gint           _monitor_number    = 0;
+static guint32        _timestamp         = 0;
+static gchar         *_icon_theme_dir    = NULL;
+static const gchar   *progname           = NULL;
+
+static gchar          write_buffer[WRITE_BUFFER_SIZE];
+static gulong         write_buffer_index = 0;
+
+static GimpStackTraceMode stack_trace_mode = GIMP_STACK_TRACE_NEVER;
+
+static GHashTable    *temp_proc_ht       = NULL;
+
+static guint          gimp_debug_flags   = 0;
+
+static const GDebugKey gimp_debug_keys[] =
+{
+  { "pid",            GIMP_DEBUG_PID            },
+  { "fatal-warnings", GIMP_DEBUG_FATAL_WARNINGS },
+  { "fw",             GIMP_DEBUG_FATAL_WARNINGS },
+  { "query",          GIMP_DEBUG_QUERY          },
+  { "init",           GIMP_DEBUG_INIT           },
+  { "run",            GIMP_DEBUG_RUN            },
+  { "quit",           GIMP_DEBUG_QUIT           },
+  { "on",             GIMP_DEBUG_DEFAULT        }
+};
+
+static GimpPlugInInfo PLUG_IN_INFO;
+
+
+static GimpPDBStatusType  pdb_error_status   = GIMP_PDB_SUCCESS;
+static gchar             *pdb_error_message  = NULL;
+
+
+/**
+ * gimp_main:
+ * @info: the PLUG_IN_INFO structure
+ * @argc: the number of arguments
+ * @argv: the arguments
+ *
+ * The main procedure that must be called with the PLUG_IN_INFO structure
+ * and the 'argc' and 'argv' that are passed to "main".
+ *
+ * Returns: an exit status as defined by the C library,
+ *          on success EXIT_SUCCESS.
+ **/
+gint
+gimp_main (const GimpPlugInInfo *info,
+           gint                  argc,
+           gchar                *argv[])
+{
+  enum
+  {
+    ARG_PROGNAME,
+    ARG_GIMP,
+    ARG_READ_FD,
+    ARG_WRITE_FD,
+    ARG_MODE,
+    ARG_STACK_TRACE_MODE,
+
+    N_ARGS
+  };
+
+  gchar       *basename;
+  const gchar *env_string;
+  gchar       *debug_string;
+
+#ifdef G_OS_WIN32
+  gint i, j, k;
+
+  /* Reduce risks */
+  {
+    typedef BOOL (WINAPI *t_SetDllDirectoryA) (LPCSTR lpPathName);
+    t_SetDllDirectoryA p_SetDllDirectoryA;
+
+    p_SetDllDirectoryA = (t_SetDllDirectoryA) GetProcAddress (GetModuleHandle ("kernel32.dll"),
+                                                              "SetDllDirectoryA");
+    if (p_SetDllDirectoryA)
+      (*p_SetDllDirectoryA) ("");
+  }
+
+  /* On Windows, set DLL search path to $INSTALLDIR/bin so that GEGL
+     file operations can find their respective file library DLLs (such
+     as jasper, etc.) without needing to set external PATH. */
+  {
+    const gchar *install_dir;
+    gchar       *bin_dir;
+    LPWSTR       w_bin_dir;
+    int          n;
+
+    w_bin_dir = NULL;
+    install_dir = gimp_installation_directory ();
+    bin_dir = g_build_filename (install_dir, "bin", NULL);
+
+    n = MultiByteToWideChar (CP_UTF8, MB_ERR_INVALID_CHARS,
+                             bin_dir, -1, NULL, 0);
+    if (n == 0)
+      goto out;
+
+    w_bin_dir = g_malloc_n (n + 1, sizeof (wchar_t));
+    n = MultiByteToWideChar (CP_UTF8, MB_ERR_INVALID_CHARS,
+                             bin_dir, -1,
+                             w_bin_dir, (n + 1) * sizeof (wchar_t));
+    if (n == 0)
+      goto out;
+
+    SetDllDirectoryW (w_bin_dir);
+
+  out:
+    if (w_bin_dir)
+      g_free (w_bin_dir);
+    g_free (bin_dir);
+  }
+
+#ifdef HAVE_EXCHNDL
+  /* Use Dr. Mingw (dumps backtrace on crash) if it is available. */
+  {
+    time_t  t;
+    gchar  *filename;
+    gchar  *dir;
+
+    /* This has to be the non-roaming directory (i.e., the local
+       directory) as backtraces correspond to the binaries on this
+       system. */
+    dir = g_build_filename (g_get_user_data_dir (),
+                            GIMPDIR, GIMP_USER_VERSION, "CrashLog",
+                            NULL);
+    /* Ensure the path exists. */
+    g_mkdir_with_parents (dir, 0700);
+
+    time (&t);
+    filename = g_strdup_printf ("%s-crash-%" G_GUINT64_FORMAT ".txt",
+                                g_get_prgname(), t);
+    plug_in_backtrace_path = g_build_filename (dir, filename, NULL);
+    g_free (filename);
+    g_free (dir);
+
+    /* Similar to core crash handling in app/signals.c, the order here
+     * is very important!
+     */
+    if (! _prevExceptionFilter)
+      _prevExceptionFilter = SetUnhandledExceptionFilter (gimp_plugin_sigfatal_handler);
+
+    ExcHndlInit ();
+    ExcHndlSetLogFileNameA (plug_in_backtrace_path);
+  }
+#endif
+
+#ifndef _WIN64
+  {
+    typedef BOOL (WINAPI *t_SetProcessDEPPolicy) (DWORD dwFlags);
+    t_SetProcessDEPPolicy p_SetProcessDEPPolicy;
+
+    p_SetProcessDEPPolicy = GetProcAddress (GetModuleHandle ("kernel32.dll"),
+                                            "SetProcessDEPPolicy");
+    if (p_SetProcessDEPPolicy)
+      (*p_SetProcessDEPPolicy) (PROCESS_DEP_ENABLE|PROCESS_DEP_DISABLE_ATL_THUNK_EMULATION);
+  }
+#endif
+
+  /* Group all our windows together on the taskbar */
+  {
+    typedef HRESULT (WINAPI *t_SetCurrentProcessExplicitAppUserModelID) (PCWSTR lpPathName);
+    t_SetCurrentProcessExplicitAppUserModelID p_SetCurrentProcessExplicitAppUserModelID;
+
+    p_SetCurrentProcessExplicitAppUserModelID = (t_SetCurrentProcessExplicitAppUserModelID) GetProcAddress (GetModuleHandle ("shell32.dll"),
+                                                                                                            "SetCurrentProcessExplicitAppUserModelID");
+    if (p_SetCurrentProcessExplicitAppUserModelID)
+      (*p_SetCurrentProcessExplicitAppUserModelID) (L"gimp.GimpApplication");
+  }
+
+  /* Check for exe file name with spaces in the path having been split up
+   * by buggy NT C runtime, or something. I don't know why this happens
+   * on NT (including w2k), but not on w95/98.
+   */
+
+  for (i = 1; i < argc; i++)
+    {
+      k = strlen (argv[i]);
+
+      if (k > 10)
+        {
+          if (g_ascii_strcasecmp (argv[i] + k - 4, ".exe") == 0)
+            {
+              /* Found the end of the executable name, most probably.
+               * Splice the parts of the name back together.
+               */
+              GString *s;
+
+              s = g_string_new (argv[ARG_PROGNAME]);
+
+              for (j = 1; j <= i; j++)
+                {
+                  s = g_string_append_c (s, ' ');
+                  s = g_string_append (s, argv[j]);
+                }
+
+              argv[ARG_PROGNAME] = s->str;
+
+              /* Move rest of argv down */
+              for (j = 1; j < argc - i; j++)
+                argv[j] = argv[j + i];
+
+              argv[argc - i] = NULL;
+              argc -= i;
+
+              break;
+          }
+       }
+    }
+#endif
+
+  g_assert (info != NULL);
+
+  PLUG_IN_INFO = *info;
+
+  if ((argc != N_ARGS) || (strcmp (argv[ARG_GIMP], "-gimp") != 0))
+    {
+      g_printerr ("%s is a GIMP plug-in and must be run by GIMP to be used\n",
+                  argv[ARG_PROGNAME]);
+      return 1;
+    }
+
+  gimp_env_init (TRUE);
+
+  progname = argv[ARG_PROGNAME];
+
+  basename = g_path_get_basename (progname);
+
+  g_set_prgname (basename);
+
+  env_string = g_getenv ("GIMP_PLUGIN_DEBUG");
+
+  if (env_string)
+    {
+      const gchar *debug_messages;
+
+      debug_string = strchr (env_string, ',');
+
+      if (debug_string)
+        {
+          gint len = debug_string - env_string;
+
+          if ((strlen (basename) == len) &&
+              (strncmp (basename, env_string, len) == 0))
+            {
+              gimp_debug_flags =
+                g_parse_debug_string (debug_string + 1,
+                                      gimp_debug_keys,
+                                      G_N_ELEMENTS (gimp_debug_keys));
+            }
+        }
+      else if (strcmp (env_string, basename) == 0)
+        {
+          gimp_debug_flags = GIMP_DEBUG_DEFAULT;
+        }
+
+      /*  make debug output visible by setting G_MESSAGES_DEBUG  */
+      debug_messages = g_getenv ("G_MESSAGES_DEBUG");
+
+      if (debug_messages)
+        {
+          gchar *tmp = g_strconcat (debug_messages, ",LibGimp", NULL);
+          g_setenv ("G_MESSAGES_DEBUG", tmp, TRUE);
+          g_free (tmp);
+        }
+      else
+        {
+          g_setenv ("G_MESSAGES_DEBUG", "LibGimp", TRUE);
+        }
+    }
+
+  g_free (basename);
+
+  stack_trace_mode = (GimpStackTraceMode) CLAMP (atoi (argv[ARG_STACK_TRACE_MODE]),
+                                                 GIMP_STACK_TRACE_NEVER,
+                                                 GIMP_STACK_TRACE_ALWAYS);
+
+#ifndef G_OS_WIN32
+  /* No use catching these on Win32, the user won't get any meaningful
+   * stack trace from glib anyhow. It's better to let Windows inform
+   * about the program error, and offer debugging if the plug-in
+   * has been built with MSVC, and the user has MSVC installed.
+   */
+  gimp_signal_private (SIGHUP,  gimp_plugin_sigfatal_handler, 0);
+  gimp_signal_private (SIGINT,  gimp_plugin_sigfatal_handler, 0);
+  gimp_signal_private (SIGQUIT, gimp_plugin_sigfatal_handler, 0);
+  gimp_signal_private (SIGTERM, gimp_plugin_sigfatal_handler, 0);
+
+  gimp_signal_private (SIGABRT, gimp_plugin_sigfatal_handler, 0);
+  gimp_signal_private (SIGBUS,  gimp_plugin_sigfatal_handler, 0);
+  gimp_signal_private (SIGSEGV, gimp_plugin_sigfatal_handler, 0);
+  gimp_signal_private (SIGFPE,  gimp_plugin_sigfatal_handler, 0);
+
+  /* Ignore SIGPIPE from crashing Gimp */
+  gimp_signal_private (SIGPIPE, SIG_IGN, 0);
+
+  /* Restart syscalls interrupted by SIGCHLD */
+  gimp_signal_private (SIGCHLD, SIG_DFL, SA_RESTART);
+#endif
+
+#ifdef G_OS_WIN32
+  _readchannel  = g_io_channel_win32_new_fd (atoi (argv[ARG_READ_FD]));
+  _writechannel = g_io_channel_win32_new_fd (atoi (argv[ARG_WRITE_FD]));
+#else
+  _readchannel  = g_io_channel_unix_new (atoi (argv[ARG_READ_FD]));
+  _writechannel = g_io_channel_unix_new (atoi (argv[ARG_WRITE_FD]));
+#endif
+
+  g_io_channel_set_encoding (_readchannel, NULL, NULL);
+  g_io_channel_set_encoding (_writechannel, NULL, NULL);
+
+  g_io_channel_set_buffered (_readchannel, FALSE);
+  g_io_channel_set_buffered (_writechannel, FALSE);
+
+  g_io_channel_set_close_on_unref (_readchannel, TRUE);
+  g_io_channel_set_close_on_unref (_writechannel, TRUE);
+
+  gp_init ();
+
+  gimp_wire_set_writer (gimp_write);
+  gimp_wire_set_flusher (gimp_flush);
+
+  gimp_enums_init ();
+
+  /*  initialize units  */
+  {
+    GimpUnitVtable vtable;
+
+    vtable.unit_get_number_of_units = _gimp_unit_cache_get_number_of_units;
+    vtable.unit_get_number_of_built_in_units =
+      _gimp_unit_cache_get_number_of_built_in_units;
+    vtable.unit_new                 = _gimp_unit_cache_new;
+    vtable.unit_get_deletion_flag   = _gimp_unit_cache_get_deletion_flag;
+    vtable.unit_set_deletion_flag   = _gimp_unit_cache_set_deletion_flag;
+    vtable.unit_get_factor          = _gimp_unit_cache_get_factor;
+    vtable.unit_get_digits          = _gimp_unit_cache_get_digits;
+    vtable.unit_get_identifier      = _gimp_unit_cache_get_identifier;
+    vtable.unit_get_symbol          = _gimp_unit_cache_get_symbol;
+    vtable.unit_get_abbreviation    = _gimp_unit_cache_get_abbreviation;
+    vtable.unit_get_singular        = _gimp_unit_cache_get_singular;
+    vtable.unit_get_plural          = _gimp_unit_cache_get_plural;
+
+    gimp_base_init (&vtable);
+  }
+
+  /* initialize i18n support */
+
+  setlocale (LC_ALL, "");
+
+  bindtextdomain (GETTEXT_PACKAGE"-libgimp", gimp_locale_directory ());
+#ifdef HAVE_BIND_TEXTDOMAIN_CODESET
+  bind_textdomain_codeset (GETTEXT_PACKAGE"-libgimp", "UTF-8");
+#endif
+
+
+  /* set handler both for the "LibGimp" and "" domains */
+  {
+    const gchar * const log_domains[] =
+    {
+      "LibGimp",
+      "LibGimpBase",
+      "LibGimpColor",
+      "LibGimpConfig",
+      "LibGimpMath",
+      "LibGimpModule",
+      "LibGimpThumb",
+      "LibGimpWidgets"
+    };
+    gint i;
+
+    for (i = 0; i < G_N_ELEMENTS (log_domains); i++)
+      g_log_set_handler (log_domains[i],
+                         G_LOG_LEVEL_MESSAGE,
+                         gimp_message_func,
+                         NULL);
+
+    g_log_set_handler (NULL,
+                       G_LOG_LEVEL_MESSAGE,
+                       gimp_message_func,
+                       NULL);
+  }
+
+  if (gimp_debug_flags & GIMP_DEBUG_FATAL_WARNINGS)
+    {
+      GLogLevelFlags fatal_mask;
+
+      fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
+      fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
+      g_log_set_always_fatal (fatal_mask);
+
+      g_log_set_handler (NULL,
+                         G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL |
+                         G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL,
+                         gimp_fatal_func, NULL);
+    }
+  else
+    {
+      g_log_set_handler (NULL,
+                         G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL,
+                         gimp_fatal_func, NULL);
+    }
+
+  if (strcmp (argv[ARG_MODE], "-query") == 0)
+    {
+      if (PLUG_IN_INFO.init_proc)
+        gp_has_init_write (_writechannel, NULL);
+
+      if (gimp_debug_flags & GIMP_DEBUG_QUERY)
+        gimp_debug_stop ();
+
+      if (PLUG_IN_INFO.query_proc)
+        (* PLUG_IN_INFO.query_proc) ();
+
+      gimp_close ();
+
+      return EXIT_SUCCESS;
+    }
+
+  if (strcmp (argv[ARG_MODE], "-init") == 0)
+    {
+      if (gimp_debug_flags & GIMP_DEBUG_INIT)
+        gimp_debug_stop ();
+
+      if (PLUG_IN_INFO.init_proc)
+        (* PLUG_IN_INFO.init_proc) ();
+
+      gimp_close ();
+
+      return EXIT_SUCCESS;
+    }
+
+  if (gimp_debug_flags & GIMP_DEBUG_RUN)
+    gimp_debug_stop ();
+  else if (gimp_debug_flags & GIMP_DEBUG_PID)
+    g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "Here I am!");
+
+  temp_proc_ht = g_hash_table_new (g_str_hash, g_str_equal);
+
+  g_io_add_watch (_readchannel,
+                  G_IO_ERR | G_IO_HUP,
+                  gimp_plugin_io_error_handler,
+                  NULL);
+
+  gimp_loop ();
+
+  return EXIT_SUCCESS;
+}
+
+/**
+ * gimp_quit:
+ *
+ * Forcefully causes the GIMP library to exit and close down its
+ * connection to main gimp application. This function never returns.
+ **/
+void
+gimp_quit (void)
+{
+  gimp_close ();
+
+#if defined G_OS_WIN32 && defined HAVE_EXCHNDL
+  if (plug_in_backtrace_path)
+    g_free (plug_in_backtrace_path);
+#endif
+
+  exit (EXIT_SUCCESS);
+}
+
+/**
+ * gimp_install_procedure:
+ * @name:          the procedure's name.
+ * @blurb:         a short text describing what the procedure does.
+ * @help:          the help text for the procedure (usually considerably
+ *                 longer than @blurb).
+ * @author:        the procedure's author(s).
+ * @copyright:     the procedure's copyright.
+ * @date:          the date the procedure was added.
+ * @menu_label:    the label to use for the procedure's menu entry,
+ *                 or #NULL if the procedure has no menu entry.
+ * @image_types:   the drawable types the procedure can handle.
+ * @type:          the type of the procedure.
+ * @n_params:      the number of parameters the procedure takes.
+ * @n_return_vals: the number of return values the procedure returns.
+ * @params:        the procedure's parameters.
+ * @return_vals:   the procedure's return values.
+ *
+ * Installs a new procedure with the PDB (procedural database).
+ *
+ * Call this function from within your plug-in's query() function for
+ * each procedure your plug-in implements.
+ *
+ * The @name parameter is mandatory and should be unique, or it will
+ * overwrite an already existing procedure (overwrite procedures only
+ * if you know what you're doing).
+ *
+ * The @blurb, @help, @author, @copyright and @date parameters are
+ * optional but then you shouldn't write procedures without proper
+ * documentation, should you.
+ *
+ * @menu_label defines the label that should be used for the
+ * procedure's menu entry. The position where to register in the menu
+ * hierarchy is chosen using gimp_plugin_menu_register().  This
+ * function also still accepts the old (pre-2.2) way of registering a
+ * menu entry and takes a string in the form
+ * "&lt;Domain&gt;/Path/To/My/Menu"
+ * (e.g. "&lt;Image&gt;/Filters/Render/Useless").
+ *
+ * Note that registering a full (pre-2.2-style) menu path is
+ * deprecated and will cause a failure in GIMP 3.0 and newer.
+ *
+ * It is possible to register a procedure only for keyboard-shortcut
+ * activation by passing a @menu_label to gimp_install_procedure() but
+ * not registering any menu path with gimp_plugin_menu_register(). In
+ * this case, the given @menu_label will only be used as the
+ * procedure's user-visible name in the keyboard shortcut editor.
+ *
+ * @image_types is a comma separated list of image types, or actually
+ * drawable types, that this procedure can deal with. Wildcards are
+ * possible here, so you could say "RGB*" instead of "RGB, RGBA" or
+ * "*" for all image types. If the procedure doesn't need an image to
+ * run, use the empty string.
+ *
+ * @type must be one of %GIMP_PLUGIN or %GIMP_EXTENSION. Note that
+ * temporary procedures must be installed using
+ * gimp_install_temp_proc().
+ *
+ * NOTE: Unlike the GIMP 1.2 API, %GIMP_EXTENSION no longer means
+ * that the procedure's menu prefix is &lt;Toolbox&gt;, but that
+ * it will install temporary procedures. Therefore, the GIMP core
+ * will wait until the %GIMP_EXTENSION procedure has called
+ * gimp_extension_ack(), which means that the procedure has done
+ * its initialization, installed its temporary procedures and is
+ * ready to run.
+ *
+ * <emphasis>Not calling gimp_extension_ack() from a %GIMP_EXTENSION
+ * procedure will cause the GIMP core to lock up.</emphasis>
+ *
+ * Additionally, a %GIMP_EXTENSION procedure with no parameters
+ * (@n_params == 0 and @params == #NULL) is an "automatic" extension
+ * that will be automatically started on each GIMP startup.
+ **/
+void
+gimp_install_procedure (const gchar        *name,
+                        const gchar        *blurb,
+                        const gchar        *help,
+                        const gchar        *author,
+                        const gchar        *copyright,
+                        const gchar        *date,
+                        const gchar        *menu_label,
+                        const gchar        *image_types,
+                        GimpPDBProcType     type,
+                        gint                n_params,
+                        gint                n_return_vals,
+                        const GimpParamDef *params,
+                        const GimpParamDef *return_vals)
+{
+  GPProcInstall proc_install;
+
+  g_return_if_fail (name != NULL);
+  g_return_if_fail (type != GIMP_INTERNAL);
+  g_return_if_fail ((n_params == 0 && params == NULL) ||
+                    (n_params > 0  && params != NULL));
+  g_return_if_fail ((n_return_vals == 0 && return_vals == NULL) ||
+                    (n_return_vals > 0  && return_vals != NULL));
+
+  proc_install.name         = (gchar *) name;
+  proc_install.blurb        = (gchar *) blurb;
+  proc_install.help         = (gchar *) help;
+  proc_install.author       = (gchar *) author;
+  proc_install.copyright    = (gchar *) copyright;
+  proc_install.date         = (gchar *) date;
+  proc_install.menu_path    = (gchar *) menu_label;
+  proc_install.image_types  = (gchar *) image_types;
+  proc_install.type         = type;
+  proc_install.nparams      = n_params;
+  proc_install.nreturn_vals = n_return_vals;
+  proc_install.params       = (GPParamDef *) params;
+  proc_install.return_vals  = (GPParamDef *) return_vals;
+
+  if (! gp_proc_install_write (_writechannel, &proc_install, NULL))
+    gimp_quit ();
+}
+
+/**
+ * gimp_install_temp_proc:
+ * @name:          the procedure's name.
+ * @blurb:         a short text describing what the procedure does.
+ * @help:          the help text for the procedure (usually considerably
+ *                 longer than @blurb).
+ * @author:        the procedure's author(s).
+ * @copyright:     the procedure's copyright.
+ * @date:          the date the procedure was added.
+ * @menu_label:    the procedure's menu label, or #NULL if the procedure has
+ *                 no menu entry.
+ * @image_types:   the drawable types the procedure can handle.
+ * @type:          the type of the procedure.
+ * @n_params:      the number of parameters the procedure takes.
+ * @n_return_vals: the number of return values the procedure returns.
+ * @params:        the procedure's parameters.
+ * @return_vals:   the procedure's return values.
+ * @run_proc:      the function to call for executing the procedure.
+ *
+ * Installs a new temporary procedure with the PDB (procedural database).
+ *
+ * A temporary procedure is a procedure which is only available while
+ * one of your plug-in's "real" procedures is running.
+ *
+ * See gimp_install_procedure() for most details.
+ *
+ * @type <emphasis>must</emphasis> be %GIMP_TEMPORARY or the function
+ * will fail.
+ *
+ * @run_proc is the function which will be called to execute the
+ * procedure.
+ *
+ * NOTE: Normally, plug-in communication is triggered by the plug-in
+ * and the GIMP core only responds to the plug-in's requests. You must
+ * explicitly enable receiving of temporary procedure run requests
+ * using either gimp_extension_enable() or
+ * gimp_extension_process(). See this functions' documentation for
+ * details.
+ **/
+void
+gimp_install_temp_proc (const gchar        *name,
+                        const gchar        *blurb,
+                        const gchar        *help,
+                        const gchar        *author,
+                        const gchar        *copyright,
+                        const gchar        *date,
+                        const gchar        *menu_label,
+                        const gchar        *image_types,
+                        GimpPDBProcType     type,
+                        gint                n_params,
+                        gint                n_return_vals,
+                        const GimpParamDef *params,
+                        const GimpParamDef *return_vals,
+                        GimpRunProc         run_proc)
+{
+  g_return_if_fail (name != NULL);
+  g_return_if_fail ((n_params == 0 && params == NULL) ||
+                    (n_params > 0  && params != NULL));
+  g_return_if_fail ((n_return_vals == 0 && return_vals == NULL) ||
+                    (n_return_vals > 0  && return_vals != NULL));
+  g_return_if_fail (type == GIMP_TEMPORARY);
+  g_return_if_fail (run_proc != NULL);
+
+  gimp_install_procedure (name,
+                          blurb, help,
+                          author, copyright, date,
+                          menu_label,
+                          image_types,
+                          type,
+                          n_params, n_return_vals,
+                          params, return_vals);
+
+  /*  Insert the temp proc run function into the hash table  */
+  g_hash_table_insert (temp_proc_ht, g_strdup (name), (gpointer) run_proc);
+}
+
+/**
+ * gimp_uninstall_temp_proc:
+ * @name: the procedure's name
+ *
+ * Uninstalls a temporary procedure which has previously been
+ * installed using gimp_install_temp_proc().
+ **/
+void
+gimp_uninstall_temp_proc (const gchar *name)
+{
+  GPProcUninstall proc_uninstall;
+  gpointer        hash_name;
+  gboolean        found;
+
+  g_return_if_fail (name != NULL);
+
+  proc_uninstall.name = (gchar *) name;
+
+  if (! gp_proc_uninstall_write (_writechannel, &proc_uninstall, NULL))
+    gimp_quit ();
+
+  found = g_hash_table_lookup_extended (temp_proc_ht, name, &hash_name, NULL);
+  if (found)
+    {
+      g_hash_table_remove (temp_proc_ht, (gpointer) name);
+      g_free (hash_name);
+    }
+}
+
+/**
+ * gimp_run_procedure:
+ * @name:          the name of the procedure to run
+ * @n_return_vals: return location for the number of return values
+ * @...:           list of procedure parameters
+ *
+ * This function calls a GIMP procedure and returns its return values.
+ *
+ * The procedure's parameters are given by a va_list in the format
+ * (type, value, type, value) and must be terminated by %GIMP_PDB_END.
+ *
+ * This function converts the va_list of parameters into an array and
+ * passes them to gimp_run_procedure2(). Please look there for further
+ * information.
+ *
+ * Return value: the procedure's return values unless there was an error,
+ * in which case the zero-th return value will be the error status, and
+ * the first return value will be a string detailing the error.
+ **/
+GimpParam *
+gimp_run_procedure (const gchar *name,
+                    gint        *n_return_vals,
+                    ...)
+{
+  GimpPDBArgType  param_type;
+  GimpParam      *return_vals;
+  GimpParam      *params   = NULL;
+  gint            n_params = 0;
+  va_list         args;
+  gint            i;
+
+  g_return_val_if_fail (name != NULL, NULL);
+  g_return_val_if_fail (n_return_vals != NULL, NULL);
+
+  va_start (args, n_return_vals);
+  param_type = va_arg (args, GimpPDBArgType);
+
+  while (param_type != GIMP_PDB_END)
+    {
+      switch (param_type)
+        {
+        case GIMP_PDB_INT32:
+        case GIMP_PDB_DISPLAY:
+        case GIMP_PDB_IMAGE:
+        case GIMP_PDB_ITEM:
+        case GIMP_PDB_LAYER:
+        case GIMP_PDB_CHANNEL:
+        case GIMP_PDB_DRAWABLE:
+        case GIMP_PDB_SELECTION:
+        case GIMP_PDB_VECTORS:
+        case GIMP_PDB_STATUS:
+          (void) va_arg (args, gint);
+          break;
+        case GIMP_PDB_INT16:
+          (void) va_arg (args, gint);
+          break;
+        case GIMP_PDB_INT8:
+          (void) va_arg (args, gint);
+          break;
+        case GIMP_PDB_FLOAT:
+          (void) va_arg (args, gdouble);
+          break;
+        case GIMP_PDB_STRING:
+          (void) va_arg (args, gchar *);
+          break;
+        case GIMP_PDB_INT32ARRAY:
+          (void) va_arg (args, gint32 *);
+          break;
+        case GIMP_PDB_INT16ARRAY:
+          (void) va_arg (args, gint16 *);
+          break;
+        case GIMP_PDB_INT8ARRAY:
+          (void) va_arg (args, gint8 *);
+          break;
+        case GIMP_PDB_FLOATARRAY:
+          (void) va_arg (args, gdouble *);
+          break;
+        case GIMP_PDB_STRINGARRAY:
+          (void) va_arg (args, gchar **);
+          break;
+        case GIMP_PDB_COLOR:
+        case GIMP_PDB_COLORARRAY:
+          (void) va_arg (args, GimpRGB *);
+          break;
+        case GIMP_PDB_PARASITE:
+          (void) va_arg (args, GimpParasite *);
+          break;
+        case GIMP_PDB_END:
+          break;
+        }
+
+      n_params++;
+
+      param_type = va_arg (args, GimpPDBArgType);
+    }
+
+  va_end (args);
+
+  params = g_new0 (GimpParam, n_params);
+
+  va_start (args, n_return_vals);
+
+  for (i = 0; i < n_params; i++)
+    {
+      params[i].type = va_arg (args, GimpPDBArgType);
+
+      switch (params[i].type)
+        {
+        case GIMP_PDB_INT32:
+          params[i].data.d_int32 = (gint32) va_arg (args, gint);
+          break;
+        case GIMP_PDB_INT16:
+          params[i].data.d_int16 = (gint16) va_arg (args, gint);
+          break;
+        case GIMP_PDB_INT8:
+          params[i].data.d_int8 = (guint8) va_arg (args, gint);
+          break;
+        case GIMP_PDB_FLOAT:
+          params[i].data.d_float = (gdouble) va_arg (args, gdouble);
+          break;
+        case GIMP_PDB_STRING:
+          params[i].data.d_string = va_arg (args, gchar *);
+          break;
+        case GIMP_PDB_INT32ARRAY:
+          params[i].data.d_int32array = va_arg (args, gint32 *);
+          break;
+        case GIMP_PDB_INT16ARRAY:
+          params[i].data.d_int16array = va_arg (args, gint16 *);
+          break;
+        case GIMP_PDB_INT8ARRAY:
+          params[i].data.d_int8array = va_arg (args, guint8 *);
+          break;
+        case GIMP_PDB_FLOATARRAY:
+          params[i].data.d_floatarray = va_arg (args, gdouble *);
+          break;
+        case GIMP_PDB_STRINGARRAY:
+          params[i].data.d_stringarray = va_arg (args, gchar **);
+          break;
+        case GIMP_PDB_COLOR:
+          params[i].data.d_color = *va_arg (args, GimpRGB *);
+          break;
+        case GIMP_PDB_ITEM:
+          params[i].data.d_item = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_DISPLAY:
+          params[i].data.d_display = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_IMAGE:
+          params[i].data.d_image = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_LAYER:
+          params[i].data.d_layer = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_CHANNEL:
+          params[i].data.d_channel = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_DRAWABLE:
+          params[i].data.d_drawable = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_SELECTION:
+          params[i].data.d_selection = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_COLORARRAY:
+          params[i].data.d_colorarray = va_arg (args, GimpRGB *);
+          break;
+        case GIMP_PDB_VECTORS:
+          params[i].data.d_vectors = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_PARASITE:
+          {
+            GimpParasite *parasite = va_arg (args, GimpParasite *);
+
+            if (parasite == NULL)
+              {
+                params[i].data.d_parasite.name = NULL;
+                params[i].data.d_parasite.data = NULL;
+              }
+            else
+              {
+                params[i].data.d_parasite.name  = parasite->name;
+                params[i].data.d_parasite.flags = parasite->flags;
+                params[i].data.d_parasite.size  = parasite->size;
+                params[i].data.d_parasite.data  = parasite->data;
+              }
+          }
+          break;
+        case GIMP_PDB_STATUS:
+          params[i].data.d_status = va_arg (args, gint32);
+          break;
+        case GIMP_PDB_END:
+          break;
+        }
+    }
+
+  va_end (args);
+
+  return_vals = gimp_run_procedure2 (name, n_return_vals, n_params, params);
+
+  g_free (params);
+
+  return return_vals;
+}
+
+void
+gimp_read_expect_msg (GimpWireMessage *msg,
+                      gint             type)
+{
+  while (TRUE)
+    {
+      if (! gimp_wire_read_msg (_readchannel, msg, NULL))
+        gimp_quit ();
+
+      if (msg->type == type)
+        return; /* up to the caller to call wire_destroy() */
+
+      if (msg->type == GP_TEMP_PROC_RUN || msg->type == GP_QUIT)
+        {
+          gimp_process_message (msg);
+        }
+      else
+        {
+          g_error ("unexpected message: %d", msg->type);
+        }
+
+      gimp_wire_destroy (msg);
+    }
+}
+
+/**
+ * gimp_run_procedure2:
+ * @name:          the name of the procedure to run
+ * @n_return_vals: return location for the number of return values
+ * @n_params:      the number of parameters the procedure takes.
+ * @params:        the procedure's parameters array.
+ *
+ * This function calls a GIMP procedure and returns its return values.
+ * To get more information about the available procedures and the
+ * parameters they expect, please have a look at the Procedure Browser
+ * as found in the Xtns menu in GIMP's toolbox.
+ *
+ * As soon as you don't need the return values any longer, you should
+ * free them using gimp_destroy_params().
+ *
+ * Return value: the procedure's return values unless there was an error,
+ * in which case the zero-th return value will be the error status, and
+ * if there are two values returned, the other return value will be a
+ * string detailing the error.
+ **/
+GimpParam *
+gimp_run_procedure2 (const gchar     *name,
+                     gint            *n_return_vals,
+                     gint             n_params,
+                     const GimpParam *params)
+{
+  GPProcRun        proc_run;
+  GPProcReturn    *proc_return;
+  GimpWireMessage  msg;
+  GimpParam       *return_vals;
+
+  g_return_val_if_fail (name != NULL, NULL);
+  g_return_val_if_fail (n_return_vals != NULL, NULL);
+
+  proc_run.name    = (gchar *) name;
+  proc_run.nparams = n_params;
+  proc_run.params  = (GPParam *) params;
+
+  if (! gp_proc_run_write (_writechannel, &proc_run, NULL))
+    gimp_quit ();
+
+  gimp_read_expect_msg (&msg, GP_PROC_RETURN);
+
+  proc_return = msg.data;
+
+  *n_return_vals = proc_return->nparams;
+  return_vals    = (GimpParam *) proc_return->params;
+
+  proc_return->nparams = 0;
+  proc_return->params  = NULL;
+
+  gimp_wire_destroy (&msg);
+
+  gimp_set_pdb_error (return_vals, *n_return_vals);
+
+  return return_vals;
+}
+
+/**
+ * gimp_destroy_params:
+ * @params:   the #GimpParam array to destroy
+ * @n_params: the number of elements in the array
+ *
+ * Destroys a #GimpParam array as returned by gimp_run_procedure() or
+ * gimp_run_procedure2().
+ **/
+void
+gimp_destroy_params (GimpParam *params,
+                     gint       n_params)
+{
+  gp_params_destroy ((GPParam *) params, n_params);
+}
+
+/**
+ * gimp_destroy_paramdefs:
+ * @paramdefs: the #GimpParamDef array to destroy
+ * @n_params:  the number of elements in the array
+ *
+ * Destroys a #GimpParamDef array as returned by
+ * gimp_procedural_db_proc_info().
+ **/
+void
+gimp_destroy_paramdefs (GimpParamDef *paramdefs,
+                        gint          n_params)
+{
+  while (n_params--)
+    {
+      g_free (paramdefs[n_params].name);
+      g_free (paramdefs[n_params].description);
+    }
+
+  g_free (paramdefs);
+}
+
+/**
+ * gimp_get_pdb_error:
+ *
+ * Retrieves the error message from the last procedure call.
+ *
+ * If a procedure call fails, then it might pass an error message with
+ * the return values. Plug-ins that are using the libgimp C wrappers
+ * don't access the procedure return values directly. Thus libgimp
+ * stores the error message and makes it available with this
+ * function. The next procedure call unsets the error message again.
+ *
+ * The returned string is owned by libgimp and must not be freed or
+ * modified.
+ *
+ * Return value: the error message
+ *
+ * Since: 2.6
+ **/
+const gchar *
+gimp_get_pdb_error (void)
+{
+  if (pdb_error_message && strlen (pdb_error_message))
+    return pdb_error_message;
+
+  switch (pdb_error_status)
+    {
+    case GIMP_PDB_SUCCESS:
+      /*  procedure executed successfully  */
+      return _("success");
+
+    case GIMP_PDB_EXECUTION_ERROR:
+      /*  procedure execution failed       */
+      return _("execution error");
+
+    case GIMP_PDB_CALLING_ERROR:
+      /*  procedure called incorrectly     */
+      return _("calling error");
+
+    case GIMP_PDB_CANCEL:
+      /*  procedure execution cancelled    */
+      return _("cancelled");
+
+    default:
+      return "invalid return status";
+    }
+}
+
+/**
+ * gimp_get_pdb_status:
+ *
+ * Retrieves the status from the last procedure call.
+ *
+ * Return value: the #GimpPDBStatusType.
+ *
+ * Since: 2.10
+ **/
+GimpPDBStatusType
+gimp_get_pdb_status (void)
+{
+  return pdb_error_status;
+}
+
+/**
+ * gimp_tile_width:
+ *
+ * Returns the tile width GIMP is using.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the tile_width
+ **/
+guint
+gimp_tile_width (void)
+{
+  return _tile_width;
+}
+
+/**
+ * gimp_tile_height:
+ *
+ * Returns the tile height GIMP is using.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the tile_height
+ **/
+guint
+gimp_tile_height (void)
+{
+  return _tile_height;
+}
+
+/**
+ * gimp_shm_ID:
+ *
+ * Returns the shared memory ID used for passing tile data between the
+ * GIMP core and the plug-in.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the shared memory ID
+ **/
+gint
+gimp_shm_ID (void)
+{
+  return _shm_ID;
+}
+
+/**
+ * gimp_shm_addr:
+ *
+ * Returns the address of the shared memory segment used for passing
+ * tile data between the GIMP core and the plug-in.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the shared memory address
+ **/
+guchar *
+gimp_shm_addr (void)
+{
+  return _shm_addr;
+}
+
+/**
+ * gimp_gamma:
+ *
+ * Returns the global gamma value GIMP and all its plug-ins should
+ * use.
+ *
+ * This is a constant value.
+ *
+ * NOTE: This function will always return 2.2, the gamma value for
+ * sRGB. If you need the actual gamma value of a drawable, look at its
+ * format.
+ *
+ * See also: gimp_drawable_get_format().
+ *
+ * @Deprecated: 2.8.4
+ *
+ * Return value: the gamma value
+ **/
+gdouble
+gimp_gamma (void)
+{
+  return 2.2;
+}
+
+/**
+ * gimp_install_cmap:
+ *
+ * Returns whether or not the plug-in should allocate an own colormap
+ * when running on an 8 bit display. See also: gimp_min_colors().
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * @Deprecated: 2.8
+ *
+ * Return value: the install_cmap boolean
+ **/
+gboolean
+gimp_install_cmap (void)
+{
+  return FALSE;
+}
+
+/**
+ * gimp_min_colors:
+ *
+ * Returns the minimum number of colors to use when allocating an own
+ * colormap on 8 bit displays.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * See also: gimp_install_cmap()
+ *
+ * @Deprecated: 2.8
+ *
+ * Return value: the minimum number of colors to allocate
+ **/
+gint
+gimp_min_colors (void)
+{
+  return _min_colors;
+}
+
+/**
+ * gimp_show_tool_tips:
+ *
+ * Returns whether or not the plug-in should show tool-tips.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the show_tool_tips boolean
+ **/
+gboolean
+gimp_show_tool_tips (void)
+{
+  return _show_tool_tips;
+}
+
+/**
+ * gimp_show_help_button:
+ *
+ * Returns whether or not GimpDialog should automatically add a help
+ * button if help_func and help_id are given.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the show_help_button boolean
+ *
+ * Since: 2.2
+ **/
+gboolean
+gimp_show_help_button (void)
+{
+  return _show_help_button;
+}
+
+/**
+ * gimp_export_color_profile:
+ *
+ * Returns whether file plug-ins should default to exporting the
+ * image's color profile.
+ *
+ * Return value: TRUE if preferences are set to export the color profile.
+ *
+ * Since: 2.10.4
+ **/
+gboolean
+gimp_export_color_profile (void)
+{
+  return _export_profile;
+}
+
+/**
+ * gimp_export_exif:
+ *
+ * Returns whether file plug-ins should default to exporting Exif
+ * metadata, according preferences (original settings is #FALSE since
+ * metadata can contain sensitive information).
+ *
+ * Return value: TRUE if preferences are set to export Exif.
+ *
+ * Since: 2.10
+ **/
+gboolean
+gimp_export_exif (void)
+{
+  return _export_exif;
+}
+
+/**
+ * gimp_export_xmp:
+ *
+ * Returns whether file plug-ins should default to exporting XMP
+ * metadata, according preferences (original settings is #FALSE since
+ * metadata can contain sensitive information).
+ *
+ * Return value: TRUE if preferences are set to export XMP.
+ *
+ * Since: 2.10
+ **/
+gboolean
+gimp_export_xmp (void)
+{
+  return _export_xmp;
+}
+
+/**
+ * gimp_export_iptc:
+ *
+ * Returns whether file plug-ins should default to exporting IPTC
+ * metadata, according preferences (original settings is #FALSE since
+ * metadata can contain sensitive information).
+ *
+ * Return value: TRUE if preferences are set to export IPTC.
+ *
+ * Since: 2.10
+ **/
+gboolean
+gimp_export_iptc (void)
+{
+  return _export_iptc;
+}
+
+/**
+ * gimp_check_size:
+ *
+ * Returns the size of the checkerboard to be used in previews.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the check_size value
+ *
+ * Since: 2.2
+ **/
+GimpCheckSize
+gimp_check_size (void)
+{
+  return _check_size;
+}
+
+/**
+ * gimp_check_type:
+ *
+ * Returns the type of the checkerboard to be used in previews.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the check_type value
+ *
+ * Since: 2.2
+ **/
+GimpCheckType
+gimp_check_type (void)
+{
+  return _check_type;
+}
+
+/**
+ * gimp_default_display:
+ *
+ * Returns the default display ID. This corresponds to the display the
+ * running procedure's menu entry was invoked from.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the default display ID
+ **/
+gint32
+gimp_default_display (void)
+{
+  return _gdisp_ID;
+}
+
+/**
+ * gimp_wm_class:
+ *
+ * Returns the window manager class to be used for plug-in windows.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the window manager class
+ **/
+const gchar *
+gimp_wm_class (void)
+{
+  return _wm_class;
+}
+
+/**
+ * gimp_display_name:
+ *
+ * Returns the display to be used for plug-in windows.
+ *
+ * This is a constant value given at plug-in configuration time.
+ * Will return #NULL if GIMP has been started with no GUI, either
+ * via "--no-interface" flag, or a console build.
+ *
+ * Return value: the display name
+ **/
+const gchar *
+gimp_display_name (void)
+{
+  return _display_name;
+}
+
+/**
+ * gimp_monitor_number:
+ *
+ * Returns the monitor number to be used for plug-in windows.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the monitor number
+ **/
+gint
+gimp_monitor_number (void)
+{
+  return _monitor_number;
+}
+
+/**
+ * gimp_user_time:
+ *
+ * Returns the timestamp of the user interaction that should be set on
+ * the plug-in window. This is handled transparently, plug-in authors
+ * do not have to care about it.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: timestamp for plug-in window
+ *
+ * Since: 2.6
+ **/
+guint32
+gimp_user_time (void)
+{
+  return _timestamp;
+}
+
+/**
+ * gimp_get_icon_theme_dir:
+ *
+ * Returns the directory of the current icon theme.
+ *
+ * This is a constant value given at plug-in configuration time.
+ *
+ * Return value: the icon theme directory
+ *
+ * Since: 2.10.4
+ **/
+const gchar *
+gimp_icon_theme_dir (void)
+{
+  return _icon_theme_dir;
+}
+
+/**
+ * gimp_get_progname:
+ *
+ * Returns the plug-in's executable name.
+ *
+ * Return value: the executable name
+ **/
+const gchar *
+gimp_get_progname (void)
+{
+  return progname;
+}
+
+/**
+ * gimp_extension_ack:
+ *
+ * Notify the main GIMP application that the extension has been properly
+ * initialized and is ready to run.
+ *
+ * This function <emphasis>must</emphasis> be called from every
+ * procedure that was registered as #GIMP_EXTENSION.
+ *
+ * Subsequently, extensions can process temporary procedure run
+ * requests using either gimp_extension_enable() or
+ * gimp_extension_process().
+ *
+ * See also: gimp_install_procedure(), gimp_install_temp_proc()
+ **/
+void
+gimp_extension_ack (void)
+{
+  if (! gp_extension_ack_write (_writechannel, NULL))
+    gimp_quit ();
+}
+
+/**
+ * gimp_extension_enable:
+ *
+ * Enables asynchronous processing of messages from the main GIMP
+ * application.
+ *
+ * Normally, a plug-in is not called by GIMP except for the call to
+ * the procedure it implements. All subsequent communication is
+ * triggered by the plug-in and all messages sent from GIMP to the
+ * plug-in are just answers to requests the plug-in made.
+ *
+ * If the plug-in however registered temporary procedures using
+ * gimp_install_temp_proc(), it needs to be able to receive requests
+ * to execute them. Usually this will be done by running
+ * gimp_extension_process() in an endless loop.
+ *
+ * If the plug-in cannot use gimp_extension_process(), i.e. if it has
+ * a GUI and is hanging around in a #GMainLoop, it must call
+ * gimp_extension_enable().
+ *
+ * Note that the plug-in does not need to be a #GIMP_EXTENSION to
+ * register temporary procedures.
+ *
+ * See also: gimp_install_procedure(), gimp_install_temp_proc()
+ **/
+void
+gimp_extension_enable (void)
+{
+  static gboolean callback_added = FALSE;
+
+  if (! callback_added)
+    {
+      g_io_add_watch (_readchannel, G_IO_IN | G_IO_PRI, gimp_extension_read,
+                      NULL);
+
+      callback_added = TRUE;
+    }
+}
+
+/**
+ * gimp_extension_process:
+ * @timeout: The timeout (in ms) to use for the select() call.
+ *
+ * Processes one message sent by GIMP and returns.
+ *
+ * Call this function in an endless loop after calling
+ * gimp_extension_ack() to process requests for running temporary
+ * procedures.
+ *
+ * See gimp_extension_enable() for an asynchronous way of doing the
+ * same if running an endless loop is not an option.
+ *
+ * See also: gimp_install_procedure(), gimp_install_temp_proc()
+ **/
+void
+gimp_extension_process (guint timeout)
+{
+#ifndef G_OS_WIN32
+  gint select_val;
+
+  do
+    {
+      fd_set readfds;
+      struct timeval  tv;
+      struct timeval *tvp;
+
+      if (timeout)
+        {
+          tv.tv_sec  = timeout / 1000;
+          tv.tv_usec = (timeout % 1000) * 1000;
+          tvp = &tv;
+        }
+      else
+        tvp = NULL;
+
+      FD_ZERO (&readfds);
+      FD_SET (g_io_channel_unix_get_fd (_readchannel), &readfds);
+
+      if ((select_val = select (FD_SETSIZE, &readfds, NULL, NULL, tvp)) > 0)
+        {
+          gimp_single_message ();
+        }
+      else if (select_val == -1 && errno != EINTR)
+        {
+          perror ("gimp_extension_process");
+          gimp_quit ();
+        }
+    }
+  while (select_val == -1 && errno == EINTR);
+#else
+  /* Zero means infinite wait for us, but g_poll and
+   * g_io_channel_win32_poll use -1 to indicate
+   * infinite wait.
+   */
+  GPollFD pollfd;
+
+  if (timeout == 0)
+    timeout = -1;
+
+  g_io_channel_win32_make_pollfd (_readchannel, G_IO_IN, &pollfd);
+
+  if (g_io_channel_win32_poll (&pollfd, 1, timeout) == 1)
+    gimp_single_message ();
+#endif
+}
+
+/**
+ * gimp_parasite_find:
+ * @name: The name of the parasite to find.
+ *
+ * Deprecated: Use gimp_get_parasite() instead.
+ *
+ * Returns: The found parasite.
+ **/
+GimpParasite *
+gimp_parasite_find (const gchar *name)
+{
+  return gimp_get_parasite (name);
+}
+
+/**
+ * gimp_parasite_attach:
+ * @parasite: The parasite to attach.
+ *
+ * Deprecated: Use gimp_attach_parasite() instead.
+ *
+ * Returns: TRUE on success.
+ **/
+gboolean
+gimp_parasite_attach (const GimpParasite *parasite)
+{
+  return gimp_attach_parasite (parasite);
+}
+
+/**
+ * gimp_parasite_detach:
+ * @name: The name of the parasite to detach.
+ *
+ * Deprecated: Use gimp_detach_parasite() instead.
+ *
+ * Returns: TRUE on success.
+ **/
+gboolean
+gimp_parasite_detach (const gchar *name)
+{
+  return gimp_detach_parasite (name);
+}
+
+/**
+ * gimp_parasite_list:
+ * @num_parasites: The number of attached parasites.
+ * @parasites: The names of currently attached parasites.
+ *
+ * Deprecated: Use gimp_get_parasite_list() instead.
+ *
+ * Returns: TRUE on success.
+ **/
+gboolean
+gimp_parasite_list (gint    *num_parasites,
+                    gchar ***parasites)
+{
+  *parasites = gimp_get_parasite_list (num_parasites);
+
+  return *parasites != NULL;
+}
+
+/**
+ * gimp_attach_new_parasite:
+ * @name: the name of the #GimpParasite to create and attach.
+ * @flags: the flags set on the #GimpParasite.
+ * @size: the size of the parasite data in bytes.
+ * @data: a pointer to the data attached with the #GimpParasite.
+ *
+ * Convenience function that creates a parasite and attaches it
+ * to GIMP.
+ *
+ * Deprecated: Use gimp_attach_parasite() instead.
+ *
+ * Return value: TRUE on successful creation and attachment of
+ * the new parasite.
+ *
+ * See Also: gimp_attach_parasite()
+ */
+gboolean
+gimp_attach_new_parasite (const gchar   *name,
+                          gint           flags,
+                          gint           size,
+                          gconstpointer  data)
+{
+  GimpParasite *parasite = gimp_parasite_new (name, flags, size, data);
+  gboolean      success;
+
+  success = gimp_attach_parasite (parasite);
+
+  gimp_parasite_free (parasite);
+
+  return success;
+}
+
+
+/*  private functions  */
+
+static void
+gimp_close (void)
+{
+  if (gimp_debug_flags & GIMP_DEBUG_QUIT)
+    gimp_debug_stop ();
+
+  if (PLUG_IN_INFO.quit_proc)
+    (* PLUG_IN_INFO.quit_proc) ();
+
+#if defined(USE_SYSV_SHM)
+
+  if ((_shm_ID != -1) && _shm_addr)
+    shmdt ((char *) _shm_addr);
+
+#elif defined(USE_WIN32_SHM)
+
+  if (shm_handle)
+    CloseHandle (shm_handle);
+
+#elif defined(USE_POSIX_SHM)
+
+  if ((_shm_ID != -1) && (_shm_addr != MAP_FAILED))
+    munmap (_shm_addr, TILE_MAP_SIZE);
+
+#endif
+
+  gp_quit_write (_writechannel, NULL);
+}
+
+static void
+gimp_debug_stop (void)
+{
+#ifndef G_OS_WIN32
+
+  g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "Waiting for debugger...");
+  raise (SIGSTOP);
+
+#else
+
+  HANDLE        hThreadSnap = NULL;
+  THREADENTRY32 te32        = { 0 };
+  pid_t         opid        = getpid ();
+
+  g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG,
+         "Debugging (restart externally): %ld",
+         (long int) opid);
+
+  hThreadSnap = CreateToolhelp32Snapshot (TH32CS_SNAPTHREAD, 0);
+  if (hThreadSnap == INVALID_HANDLE_VALUE)
+    {
+      g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG,
+             "error getting threadsnap - debugging impossible");
+      return;
+    }
+
+  te32.dwSize = sizeof (THREADENTRY32);
+
+  if (Thread32First (hThreadSnap, &te32))
+    {
+      do
+        {
+          if (te32.th32OwnerProcessID == opid)
+            {
+              HANDLE hThread = OpenThread (THREAD_SUSPEND_RESUME, FALSE,
+                                           te32.th32ThreadID);
+              SuspendThread (hThread);
+              CloseHandle (hThread);
+            }
+        }
+      while (Thread32Next (hThreadSnap, &te32));
+    }
+  else
+    {
+      g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "error getting threads");
+    }
+
+  CloseHandle (hThreadSnap);
+
+#endif
+}
+
+static void
+gimp_message_func (const gchar    *log_domain,
+                   GLogLevelFlags  log_level,
+                   const gchar    *message,
+                   gpointer        data)
+{
+  gimp_message (message);
+}
+
+static void
+gimp_fatal_func (const gchar    *log_domain,
+                 GLogLevelFlags  flags,
+                 const gchar    *message,
+                 gpointer        data)
+{
+  const gchar *level;
+
+  switch (flags & G_LOG_LEVEL_MASK)
+    {
+    case G_LOG_LEVEL_WARNING:
+      level = "WARNING";
+      break;
+    case G_LOG_LEVEL_CRITICAL:
+      level = "CRITICAL";
+      break;
+    case G_LOG_LEVEL_ERROR:
+      level = "ERROR";
+      break;
+    default:
+      level = "FATAL";
+      break;
+    }
+
+  g_printerr ("%s: %s: %s\n",
+              progname, level, message);
+
+#ifndef G_OS_WIN32
+  switch (stack_trace_mode)
+    {
+    case GIMP_STACK_TRACE_NEVER:
+      break;
+
+    case GIMP_STACK_TRACE_QUERY:
+        {
+          sigset_t sigset;
+
+          sigemptyset (&sigset);
+          sigprocmask (SIG_SETMASK, &sigset, NULL);
+          gimp_stack_trace_query (progname);
+        }
+      break;
+
+    case GIMP_STACK_TRACE_ALWAYS:
+        {
+          sigset_t sigset;
+
+          sigemptyset (&sigset);
+          sigprocmask (SIG_SETMASK, &sigset, NULL);
+          gimp_stack_trace_print (progname, stdout, NULL);
+        }
+      break;
+    }
+#endif
+
+  /* Do not end with gimp_quit().
+   * We want the plug-in to continue its normal crash course, otherwise
+   * we won't get the "Plug-in crashed" error in GIMP.
+   */
+  exit (EXIT_FAILURE);
+}
+
+#ifdef G_OS_WIN32
+
+#ifdef HAVE_EXCHNDL
+static LONG WINAPI
+gimp_plugin_sigfatal_handler (PEXCEPTION_POINTERS pExceptionInfo)
+{
+  g_printerr ("%s: fatal error\n", progname);
+
+  SetUnhandledExceptionFilter (_prevExceptionFilter);
+
+  /* For simplicity, do not make a difference between QUERY and ALWAYS
+   * on Windows (at least not for now).
+   */
+  if (stack_trace_mode != GIMP_STACK_TRACE_NEVER &&
+      g_file_test (plug_in_backtrace_path, G_FILE_TEST_IS_REGULAR))
+    {
+      FILE   *stream;
+      guchar  buffer[256];
+      size_t  read_len;
+
+      stream = fopen (plug_in_backtrace_path, "r");
+      do
+        {
+          /* Just read and output directly the file content. */
+          read_len = fread (buffer, 1, sizeof (buffer) - 1, stream);
+          buffer[read_len] = '\0';
+          g_printerr ("%s", buffer);
+        }
+      while (read_len);
+      fclose (stream);
+    }
+
+  if (_prevExceptionFilter && _prevExceptionFilter != gimp_plugin_sigfatal_handler)
+    return _prevExceptionFilter (pExceptionInfo);
+  else
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+#endif
+
+#else
+static void
+gimp_plugin_sigfatal_handler (gint sig_num)
+{
+  switch (sig_num)
+    {
+    case SIGHUP:
+    case SIGINT:
+    case SIGQUIT:
+    case SIGTERM:
+      g_printerr ("%s terminated: %s\n", progname, g_strsignal (sig_num));
+      break;
+
+    case SIGABRT:
+    case SIGBUS:
+    case SIGSEGV:
+    case SIGFPE:
+    case SIGPIPE:
+    default:
+      g_printerr ("%s: fatal error: %s\n", progname, g_strsignal (sig_num));
+      switch (stack_trace_mode)
+        {
+        case GIMP_STACK_TRACE_NEVER:
+          break;
+
+        case GIMP_STACK_TRACE_QUERY:
+          {
+            sigset_t sigset;
+
+            sigemptyset (&sigset);
+            sigprocmask (SIG_SETMASK, &sigset, NULL);
+            gimp_stack_trace_query (progname);
+          }
+          break;
+
+        case GIMP_STACK_TRACE_ALWAYS:
+          {
+            sigset_t sigset;
+
+            sigemptyset (&sigset);
+            sigprocmask (SIG_SETMASK, &sigset, NULL);
+            gimp_stack_trace_print (progname, stdout, NULL);
+          }
+          break;
+        }
+      break;
+    }
+
+  /* Do not end with gimp_quit().
+   * We want the plug-in to continue its normal crash course, otherwise
+   * we won't get the "Plug-in crashed" error in GIMP.
+   */
+  exit (EXIT_FAILURE);
+}
+#endif
+
+static gboolean
+gimp_plugin_io_error_handler (GIOChannel   *channel,
+                              GIOCondition  cond,
+                              gpointer      data)
+{
+  g_printerr ("%s: fatal error: GIMP crashed\n", progname);
+  gimp_quit ();
+
+  /* never reached */
+  return TRUE;
+}
+
+static gboolean
+gimp_write (GIOChannel   *channel,
+            const guint8 *buf,
+            gulong        count,
+            gpointer      user_data)
+{
+  gulong bytes;
+
+  while (count > 0)
+    {
+      if ((write_buffer_index + count) >= WRITE_BUFFER_SIZE)
+        {
+          bytes = WRITE_BUFFER_SIZE - write_buffer_index;
+          memcpy (&write_buffer[write_buffer_index], buf, bytes);
+          write_buffer_index += bytes;
+          if (! gimp_wire_flush (channel, NULL))
+            return FALSE;
+        }
+      else
+        {
+          bytes = count;
+          memcpy (&write_buffer[write_buffer_index], buf, bytes);
+          write_buffer_index += bytes;
+        }
+
+      buf += bytes;
+      count -= bytes;
+    }
+
+  return TRUE;
+}
+
+static gboolean
+gimp_flush (GIOChannel *channel,
+            gpointer    user_data)
+{
+  GIOStatus  status;
+  GError    *error = NULL;
+  gsize      count;
+  gsize      bytes;
+
+  if (write_buffer_index > 0)
+    {
+      count = 0;
+      while (count != write_buffer_index)
+        {
+          do
+            {
+              bytes = 0;
+              status = g_io_channel_write_chars (channel,
+                                                 &write_buffer[count],
+                                                 (write_buffer_index - count),
+                                                 &bytes,
+                                                 &error);
+            }
+          while (status == G_IO_STATUS_AGAIN);
+
+          if (status != G_IO_STATUS_NORMAL)
+            {
+              if (error)
+                {
+                  g_warning ("%s: gimp_flush(): error: %s",
+                             g_get_prgname (), error->message);
+                  g_error_free (error);
+                }
+              else
+                {
+                  g_warning ("%s: gimp_flush(): error", g_get_prgname ());
+                }
+
+              return FALSE;
+            }
+
+          count += bytes;
+        }
+
+      write_buffer_index = 0;
+    }
+
+  return TRUE;
+}
+
+static void
+gimp_loop (void)
+{
+  GimpWireMessage msg;
+
+  while (TRUE)
+    {
+      if (! gimp_wire_read_msg (_readchannel, &msg, NULL))
+        {
+          gimp_close ();
+          return;
+        }
+
+      switch (msg.type)
+        {
+        case GP_QUIT:
+          gimp_wire_destroy (&msg);
+          gimp_close ();
+          return;
+
+        case GP_CONFIG:
+          gimp_config (msg.data);
+          break;
+
+        case GP_TILE_REQ:
+        case GP_TILE_ACK:
+        case GP_TILE_DATA:
+          g_warning ("unexpected tile message received (should not happen)");
+          break;
+
+        case GP_PROC_RUN:
+          gimp_proc_run (msg.data);
+          gimp_wire_destroy (&msg);
+          gimp_close ();
+          return;
+
+        case GP_PROC_RETURN:
+          g_warning ("unexpected proc return message received (should not happen)");
+          break;
+
+        case GP_TEMP_PROC_RUN:
+          g_warning ("unexpected temp proc run message received (should not happen");
+          break;
+
+        case GP_TEMP_PROC_RETURN:
+          g_warning ("unexpected temp proc return message received (should not happen");
+          break;
+
+        case GP_PROC_INSTALL:
+          g_warning ("unexpected proc install message received (should not happen)");
+          break;
+
+        case GP_HAS_INIT:
+          g_warning ("unexpected has init message received (should not happen)");
+          break;
+        }
+
+      gimp_wire_destroy (&msg);
+    }
+}
+
+static void
+gimp_config (GPConfig *config)
+{
+  GFile *file;
+  gchar *path;
+
+  if (config->version < GIMP_PROTOCOL_VERSION)
+    {
+      g_message ("Could not execute plug-in \"%s\"\n(%s)\n"
+                 "because GIMP is using an older version of the "
+                 "plug-in protocol.",
+                 gimp_filename_to_utf8 (g_get_prgname ()),
+                 gimp_filename_to_utf8 (progname));
+      gimp_quit ();
+    }
+  else if (config->version > GIMP_PROTOCOL_VERSION)
+    {
+      g_message ("Could not execute plug-in \"%s\"\n(%s)\n"
+                 "because it uses an obsolete version of the "
+                 "plug-in protocol.",
+                 gimp_filename_to_utf8 (g_get_prgname ()),
+                 gimp_filename_to_utf8 (progname));
+      gimp_quit ();
+    }
+
+  _tile_width       = config->tile_width;
+  _tile_height      = config->tile_height;
+  _shm_ID           = config->shm_ID;
+  _check_size       = config->check_size;
+  _check_type       = config->check_type;
+  _show_tool_tips   = config->show_tooltips    ? TRUE : FALSE;
+  _show_help_button = config->show_help_button ? TRUE : FALSE;
+  _export_profile   = config->export_profile   ? TRUE : FALSE;
+  _export_exif      = config->export_exif      ? TRUE : FALSE;
+  _export_xmp       = config->export_xmp       ? TRUE : FALSE;
+  _export_iptc      = config->export_iptc      ? TRUE : FALSE;
+  _min_colors       = config->min_colors;
+  _gdisp_ID         = config->gdisp_ID;
+  _wm_class         = g_strdup (config->wm_class);
+  _display_name     = g_strdup (config->display_name);
+  _monitor_number   = config->monitor_number;
+  _timestamp        = config->timestamp;
+  _icon_theme_dir   = g_strdup (config->icon_theme_dir);
+
+  if (config->app_name)
+    g_set_application_name (config->app_name);
+
+  gimp_cpu_accel_set_use (config->use_cpu_accel);
+
+  file = gimp_file_new_for_config_path (config->swap_path, NULL);
+  path = g_file_get_path (file);
+
+  g_object_set (gegl_config (),
+                "tile-cache-size",     config->tile_cache_size,
+                "swap",                path,
+                "swap-compression",    config->swap_compression,
+                "threads",             (gint) config->num_processors,
+                "use-opencl",          config->use_opencl,
+                "application-license", "GPL3",
+                NULL);
+
+  g_free (path);
+  g_object_unref (file);
+
+  if (_shm_ID != -1)
+    {
+#if defined(USE_SYSV_SHM)
+
+      /* Use SysV shared memory mechanisms for transferring tile data. */
+
+      _shm_addr = (guchar *) shmat (_shm_ID, NULL, 0);
+
+      if (_shm_addr == (guchar *) -1)
+        {
+          g_error ("shmat() failed: %s\n" ERRMSG_SHM_FAILED,
+                   g_strerror (errno));
+        }
+
+#elif defined(USE_WIN32_SHM)
+
+      /* Use Win32 shared memory mechanisms for transferring tile data. */
+
+      gchar fileMapName[128];
+
+      /* From the id, derive the file map name */
+      g_snprintf (fileMapName, sizeof (fileMapName), "GIMP%d.SHM", _shm_ID);
+
+      /* Open the file mapping */
+      shm_handle = OpenFileMapping (FILE_MAP_ALL_ACCESS,
+                                    0, fileMapName);
+      if (shm_handle)
+        {
+          /* Map the shared memory into our address space for use */
+          _shm_addr = (guchar *) MapViewOfFile (shm_handle,
+                                                FILE_MAP_ALL_ACCESS,
+                                                0, 0, TILE_MAP_SIZE);
+
+          /* Verify that we mapped our view */
+          if (!_shm_addr)
+            {
+              g_error ("MapViewOfFile error: %lu... " ERRMSG_SHM_FAILED,
+                       GetLastError ());
+            }
+        }
+      else
+        {
+          g_error ("OpenFileMapping error: %lu... " ERRMSG_SHM_FAILED,
+                   GetLastError ());
+        }
+
+#elif defined(USE_POSIX_SHM)
+
+      /* Use POSIX shared memory mechanisms for transferring tile data. */
+
+      gchar map_file[32];
+      gint  shm_fd;
+
+      /* From the id, derive the file map name */
+      g_snprintf (map_file, sizeof (map_file), "/gimp-shm-%d", _shm_ID);
+
+      /* Open the file mapping */
+      shm_fd = shm_open (map_file, O_RDWR, 0600);
+
+      if (shm_fd != -1)
+        {
+          /* Map the shared memory into our address space for use */
+          _shm_addr = (guchar *) mmap (NULL, TILE_MAP_SIZE,
+                                       PROT_READ | PROT_WRITE, MAP_SHARED,
+                                       shm_fd, 0);
+
+          /* Verify that we mapped our view */
+          if (_shm_addr == MAP_FAILED)
+            {
+              g_error ("mmap() failed: %s\n" ERRMSG_SHM_FAILED,
+                       g_strerror (errno));
+            }
+
+          close (shm_fd);
+        }
+      else
+        {
+          g_error ("shm_open() failed: %s\n" ERRMSG_SHM_FAILED,
+                   g_strerror (errno));
+        }
+
+#endif
+    }
+}
+
+static void
+gimp_proc_run (GPProcRun *proc_run)
+{
+  if (PLUG_IN_INFO.run_proc)
+    {
+      GPProcReturn  proc_return;
+      GimpParam    *return_vals;
+      gint          n_return_vals;
+
+      (* PLUG_IN_INFO.run_proc) (proc_run->name,
+                                 proc_run->nparams,
+                                 (GimpParam *) proc_run->params,
+                                 &n_return_vals, &return_vals);
+
+      proc_return.name    = proc_run->name;
+      proc_return.nparams = n_return_vals;
+      proc_return.params  = (GPParam *) return_vals;
+
+      if (! gp_proc_return_write (_writechannel, &proc_return, NULL))
+        gimp_quit ();
+    }
+}
+
+static void
+gimp_temp_proc_run (GPProcRun *proc_run)
+{
+  GimpRunProc run_proc = g_hash_table_lookup (temp_proc_ht, proc_run->name);
+
+  if (run_proc)
+    {
+      GPProcReturn  proc_return;
+      GimpParam    *return_vals;
+      gint          n_return_vals;
+
+#ifdef GDK_WINDOWING_QUARTZ
+      if (proc_run->params &&
+          proc_run->params[0].data.d_int32 == GIMP_RUN_INTERACTIVE)
+        {
+          [NSApp activateIgnoringOtherApps: YES];
+        }
+#endif
+
+      (* run_proc) (proc_run->name,
+                    proc_run->nparams,
+                    (GimpParam *) proc_run->params,
+                    &n_return_vals, &return_vals);
+
+      proc_return.name    = proc_run->name;
+      proc_return.nparams = n_return_vals;
+      proc_return.params  = (GPParam *) return_vals;
+
+      if (! gp_temp_proc_return_write (_writechannel, &proc_return, NULL))
+        gimp_quit ();
+    }
+}
+
+static void
+gimp_process_message (GimpWireMessage *msg)
+{
+  switch (msg->type)
+    {
+    case GP_QUIT:
+      gimp_quit ();
+      break;
+    case GP_CONFIG:
+      gimp_config (msg->data);
+      break;
+    case GP_TILE_REQ:
+    case GP_TILE_ACK:
+    case GP_TILE_DATA:
+      g_warning ("unexpected tile message received (should not happen)");
+      break;
+    case GP_PROC_RUN:
+      g_warning ("unexpected proc run message received (should not happen)");
+      break;
+    case GP_PROC_RETURN:
+      g_warning ("unexpected proc return message received (should not happen)");
+      break;
+    case GP_TEMP_PROC_RUN:
+      gimp_temp_proc_run (msg->data);
+      break;
+    case GP_TEMP_PROC_RETURN:
+      g_warning ("unexpected temp proc return message received (should not happen)");
+      break;
+    case GP_PROC_INSTALL:
+      g_warning ("unexpected proc install message received (should not happen)");
+      break;
+    case GP_HAS_INIT:
+      g_warning ("unexpected has init message received (should not happen)");
+      break;
+    }
+}
+
+static void
+gimp_single_message (void)
+{
+  GimpWireMessage msg;
+
+  /* Run a temp function */
+  if (! gimp_wire_read_msg (_readchannel, &msg, NULL))
+    gimp_quit ();
+
+  gimp_process_message (&msg);
+
+  gimp_wire_destroy (&msg);
+}
+
+static gboolean
+gimp_extension_read (GIOChannel  *channel,
+                     GIOCondition condition,
+                     gpointer     data)
+{
+  gimp_single_message ();
+
+  return TRUE;
+}
+
+static void
+gimp_set_pdb_error (const GimpParam *return_vals,
+                    gint             n_return_vals)
+{
+  if (pdb_error_message)
+    {
+      g_free (pdb_error_message);
+      pdb_error_message = NULL;
+    }
+
+  pdb_error_status = return_vals[0].data.d_status;
+
+  switch (pdb_error_status)
+    {
+    case GIMP_PDB_SUCCESS:
+    case GIMP_PDB_PASS_THROUGH:
+      break;
+
+    case GIMP_PDB_EXECUTION_ERROR:
+    case GIMP_PDB_CALLING_ERROR:
+    case GIMP_PDB_CANCEL:
+      if (n_return_vals > 1 && return_vals[1].type == GIMP_PDB_STRING)
+        {
+          pdb_error_message = g_strdup (return_vals[1].data.d_string);
+        }
+      break;
+    }
+}