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gimp/app/plug-in/gimpplugin-message.c
Michael Natterer d407244f7e renamed plug_in_progress_init() to plug_in_progress_start() so it matches 
2003-01-20  Michael Natterer  <mitch@gimp.org>

	* app/plug-in/plug-in-progress.[ch]: renamed plug_in_progress_init()
	to plug_in_progress_start() so it matches plug_in_progress_end().
	Added g_return_if_fail() to all functions.

	* app/plug-in/plug-in.[ch]: plug_in_new(): require the passed
	path to be absolute. Removed plug_in_search_in_path(). Replaced
	some if(plug_in){...} by g_return_if_fail(plug_in!=NULL). Cleanup.

	* app/plug-in/plug-ins.c: plug_ins_def_add_from_rc(): refuse to
	add plug_in_defs with non-absolute paths (should never happen).
	Misc cleanup all over the place like s/GSList *tmp/GSList *list/.

	* app/plug-in/plug-in-params.c: cleanup.

	* tools/pdbgen/pdb/plug_in.pdb: changed accordingly.

	* app/pdb/plug_in_cmds.c: regenerated.

	* app/gui/brush-select.c
	* app/gui/gradient-select.c
	* app/gui/palette-select.c
	* app/gui/pattern-select.c: some code review & cleanup.
2003-01-20 12:17:32 +00:00

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <gtk/gtk.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <time.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
#define STRICT
#include <windows.h>
#include <process.h>
#ifdef G_OS_WIN32
#include <fcntl.h>
#include <io.h>
#endif
#ifdef G_WITH_CYGWIN
#define O_TEXT 0x0100 /* text file */
#define _O_TEXT 0x0100 /* text file */
#define O_BINARY 0x0200 /* binary file */
#define _O_BINARY 0x0200 /* binary file */
#endif
#endif /* G_OS_WIN32 || G_WITH_CYGWIN */
#ifdef __EMX__
#include <fcntl.h>
#include <process.h>
#define _O_BINARY O_BINARY
#define _P_NOWAIT P_NOWAIT
#endif
#ifdef HAVE_IPC_H
#include <sys/ipc.h>
#endif
#ifdef HAVE_SHM_H
#include <sys/shm.h>
#endif
#include "libgimpbase/gimpbase.h"
#include "libgimpbase/gimpprotocol.h"
#include "libgimpbase/gimpwire.h"
#include "plug-in-types.h"
#include "base/tile.h"
#include "base/tile-manager.h"
#include "config/gimpguiconfig.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpenvirontable.h"
#include "gui/brush-select.h"
#include "gui/gradient-select.h"
#include "gui/palette-select.h"
#include "gui/pattern-select.h"
#include "plug-in.h"
#include "plug-ins.h"
#include "plug-in-def.h"
#include "plug-in-params.h"
#include "plug-in-proc.h"
#include "plug-in-progress.h"
#include "libgimp/gimpintl.h"
typedef struct _PlugInBlocked PlugInBlocked;
struct _PlugInBlocked
{
PlugIn *plug_in;
gchar *proc_name;
};
static gboolean plug_in_write (GIOChannel *channel,
guint8 *buf,
gulong count,
gpointer user_data);
static gboolean plug_in_flush (GIOChannel *channel,
gpointer user_data);
static void plug_in_push (PlugIn *plug_in);
static void plug_in_pop (void);
static gboolean plug_in_recv_message (GIOChannel *channel,
GIOCondition cond,
gpointer data);
static void plug_in_handle_message (PlugIn *plug_in,
WireMessage *msg);
static void plug_in_handle_quit (PlugIn *plug_in);
static void plug_in_handle_tile_req (PlugIn *plug_in,
GPTileReq *tile_req);
static void plug_in_handle_proc_run (PlugIn *plug_in,
GPProcRun *proc_run);
static void plug_in_handle_proc_return (PlugIn *plug_in,
GPProcReturn *proc_return);
static void plug_in_handle_proc_install (PlugIn *plug_in,
GPProcInstall *proc_install);
static void plug_in_handle_proc_uninstall (PlugIn *plug_in,
GPProcUninstall *proc_uninstall);
static void plug_in_handle_extension_ack (PlugIn *plug_in);
static void plug_in_handle_has_init (PlugIn *plug_in);
static Argument * plug_in_temp_run (ProcRecord *proc_rec,
Argument *args,
gint argc);
static void plug_in_init_shm (void);
static void plug_in_prep_for_exec (gpointer data);
PlugIn *current_plug_in = NULL;
ProcRecord *last_plug_in = NULL;
static GSList *open_plug_ins = NULL;
static GSList *blocked_plug_ins = NULL;
static GSList *plug_in_stack = NULL;
static Argument *current_return_vals = NULL;
static gint current_return_nvals = 0;
static gint shm_ID = -1;
static guchar *shm_addr = NULL;
#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
static HANDLE shm_handle;
#endif
static void
plug_in_init_shm (void)
{
/* allocate a piece of shared memory for use in transporting tiles
* to plug-ins. if we can't allocate a piece of shared memory then
* we'll fall back on sending the data over the pipe.
*/
#ifdef HAVE_SHM_H
shm_ID = shmget (IPC_PRIVATE,
TILE_WIDTH * TILE_HEIGHT * 4,
IPC_CREAT | 0600);
if (shm_ID == -1)
g_message ("shmget() failed: Disabling shared memory tile transport.");
else
{
shm_addr = (guchar *) shmat (shm_ID, NULL, 0);
if (shm_addr == (guchar *) -1)
{
g_message ("shmat() failed: Disabling shared memory tile transport.");
shmctl (shm_ID, IPC_RMID, NULL);
shm_ID = -1;
}
#ifdef IPC_RMID_DEFERRED_RELEASE
if (shm_addr != (guchar *) -1)
shmctl (shm_ID, IPC_RMID, NULL);
#endif
}
#else
#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
/* Use Win32 shared memory mechanisms for
* transfering tile data.
*/
gint pid;
gchar fileMapName[MAX_PATH];
gint tileByteSize = TILE_WIDTH * TILE_HEIGHT * 4;
/* Our shared memory id will be our process ID */
pid = GetCurrentProcessId ();
/* From the id, derive the file map name */
g_snprintf (fileMapName, sizeof (fileMapName), "GIMP%d.SHM", pid);
/* Create the file mapping into paging space */
shm_handle = CreateFileMapping ((HANDLE) 0xFFFFFFFF, NULL,
PAGE_READWRITE, 0,
tileByteSize, 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, tileByteSize);
/* Verify that we mapped our view */
if (shm_addr)
shm_ID = pid;
else
{
g_warning ("MapViewOfFile error: %d... disabling shared memory transport\n", GetLastError());
}
}
else
{
g_warning ("CreateFileMapping error: %d... disabling shared memory transport\n", GetLastError());
}
#endif
#endif
}
void
plug_in_init (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
/* initialize the gimp protocol library and set the read and
* write handlers.
*/
gp_init ();
wire_set_writer (plug_in_write);
wire_set_flusher (plug_in_flush);
/* allocate a piece of shared memory for use in transporting tiles
* to plug-ins. if we can't allocate a piece of shared memory then
* we'll fall back on sending the data over the pipe.
*/
if (gimp->use_shm)
plug_in_init_shm ();
}
void
plug_in_kill (Gimp *gimp)
{
GSList *tmp;
PlugIn *plug_in;
#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
CloseHandle (shm_handle);
#else
#ifdef HAVE_SHM_H
#ifndef IPC_RMID_DEFERRED_RELEASE
if (shm_ID != -1)
{
shmdt ((gchar *) shm_addr);
shmctl (shm_ID, IPC_RMID, NULL);
}
#else /* IPC_RMID_DEFERRED_RELEASE */
if (shm_ID != -1)
shmdt ((gchar *) shm_addr);
#endif
#endif
#endif
tmp = open_plug_ins;
while (tmp)
{
plug_in = tmp->data;
tmp = tmp->next;
plug_in_destroy (plug_in);
}
}
void
plug_in_call_query (Gimp *gimp,
PlugInDef *plug_in_def)
{
PlugIn *plug_in;
WireMessage msg;
plug_in = plug_in_new (gimp, plug_in_def->prog);
if (plug_in)
{
plug_in->query = TRUE;
plug_in->synchronous = TRUE;
plug_in->plug_in_def = plug_in_def;
if (plug_in_open (plug_in))
{
plug_in_push (plug_in);
while (plug_in->open)
{
if (! wire_read_msg (plug_in->my_read, &msg, plug_in))
{
plug_in_close (plug_in, TRUE);
}
else
{
plug_in_handle_message (plug_in, &msg);
wire_destroy (&msg);
}
}
plug_in_pop ();
plug_in_destroy (plug_in);
}
}
}
void
plug_in_call_init (Gimp *gimp,
PlugInDef *plug_in_def)
{
PlugIn *plug_in;
WireMessage msg;
plug_in = plug_in_new (gimp, plug_in_def->prog);
if (plug_in)
{
plug_in->init = TRUE;
plug_in->synchronous = TRUE;
plug_in->plug_in_def = plug_in_def;
if (plug_in_open (plug_in))
{
plug_in_push (plug_in);
while (plug_in->open)
{
if (! wire_read_msg (plug_in->my_read, &msg, plug_in))
{
plug_in_close (plug_in, TRUE);
}
else
{
plug_in_handle_message (plug_in, &msg);
wire_destroy (&msg);
}
}
plug_in_pop ();
plug_in_destroy (plug_in);
}
}
}
PlugIn *
plug_in_new (Gimp *gimp,
gchar *name)
{
PlugIn *plug_in;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail (g_path_is_absolute (name), NULL);
plug_in = g_new0 (PlugIn, 1);
plug_in->gimp = gimp;
plug_in->open = FALSE;
plug_in->query = FALSE;
plug_in->init = FALSE;
plug_in->synchronous = FALSE;
plug_in->recurse = FALSE;
plug_in->busy = FALSE;
plug_in->pid = 0;
plug_in->args[0] = g_strdup (name);
plug_in->args[1] = g_strdup ("-gimp");
plug_in->args[2] = NULL;
plug_in->args[3] = NULL;
plug_in->args[4] = NULL;
plug_in->args[5] = NULL;
plug_in->args[6] = NULL;
plug_in->my_read = NULL;
plug_in->my_write = NULL;
plug_in->his_read = NULL;
plug_in->his_write = NULL;
plug_in->input_id = 0;
plug_in->write_buffer_index = 0;
plug_in->temp_proc_defs = NULL;
plug_in->progress = NULL;
plug_in->plug_in_def = NULL;
return plug_in;
}
void
plug_in_destroy (PlugIn *plug_in)
{
g_return_if_fail (plug_in != NULL);
if (plug_in->open)
plug_in_close (plug_in, TRUE);
if (plug_in->args[0])
g_free (plug_in->args[0]);
if (plug_in->args[1])
g_free (plug_in->args[1]);
if (plug_in->args[2])
g_free (plug_in->args[2]);
if (plug_in->args[3])
g_free (plug_in->args[3]);
if (plug_in->args[4])
g_free (plug_in->args[4]);
if (plug_in->args[5])
g_free (plug_in->args[5]);
if (plug_in->progress)
plug_in_progress_end (plug_in);
if (plug_in == current_plug_in)
plug_in_pop ();
g_free (plug_in);
}
static void
plug_in_prep_for_exec (gpointer data)
{
#if !defined(G_OS_WIN32) && !defined (G_WITH_CYGWIN) && !defined(__EMX__)
PlugIn *plug_in = data;
g_io_channel_unref (plug_in->my_read);
plug_in->my_read = NULL;
g_io_channel_unref (plug_in->my_write);
plug_in->my_write = NULL;
#endif
}
gboolean
plug_in_open (PlugIn *plug_in)
{
gint my_read[2];
gint my_write[2];
gchar **envp;
GError *error = NULL;
g_return_val_if_fail (plug_in != NULL, FALSE);
/* Open two pipes. (Bidirectional communication).
*/
if ((pipe (my_read) == -1) || (pipe (my_write) == -1))
{
g_message ("pipe() failed: Unable to start Plug-In \"%s\"\n(%s)",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0]);
return FALSE;
}
#if defined(G_WITH_CYGWIN) || defined(__EMX__)
/* Set to binary mode */
setmode (my_read[0], _O_BINARY);
setmode (my_write[0], _O_BINARY);
setmode (my_read[1], _O_BINARY);
setmode (my_write[1], _O_BINARY);
#endif
plug_in->my_read = g_io_channel_unix_new (my_read[0]);
plug_in->my_write = g_io_channel_unix_new (my_write[1]);
plug_in->his_read = g_io_channel_unix_new (my_write[0]);
plug_in->his_write = g_io_channel_unix_new (my_read[1]);
g_io_channel_set_encoding (plug_in->my_read, NULL, NULL);
g_io_channel_set_encoding (plug_in->my_write, NULL, NULL);
g_io_channel_set_encoding (plug_in->his_read, NULL, NULL);
g_io_channel_set_encoding (plug_in->his_write, NULL, NULL);
g_io_channel_set_buffered (plug_in->my_read, FALSE);
g_io_channel_set_buffered (plug_in->my_write, FALSE);
g_io_channel_set_buffered (plug_in->his_read, FALSE);
g_io_channel_set_buffered (plug_in->his_write, FALSE);
g_io_channel_set_close_on_unref (plug_in->my_read, TRUE);
g_io_channel_set_close_on_unref (plug_in->my_write, TRUE);
g_io_channel_set_close_on_unref (plug_in->his_read, TRUE);
g_io_channel_set_close_on_unref (plug_in->his_write, TRUE);
/* Remember the file descriptors for the pipes.
*/
plug_in->args[2] =
g_strdup_printf ("%d", g_io_channel_unix_get_fd (plug_in->his_read));
plug_in->args[3] =
g_strdup_printf ("%d", g_io_channel_unix_get_fd (plug_in->his_write));
/* Set the rest of the command line arguments.
* FIXME: this is ugly. Pass in the mode as a separate argument?
*/
if (plug_in->query)
{
plug_in->args[4] = g_strdup ("-query");
}
else if (plug_in->init)
{
plug_in->args[4] = g_strdup ("-init");
}
else
{
plug_in->args[4] = g_strdup ("-run");
}
plug_in->args[5] = g_strdup_printf ("%d", plug_in->gimp->stack_trace_mode);
#ifdef __EMX__
fcntl (my_read[0], F_SETFD, 1);
fcntl (my_write[1], F_SETFD, 1);
#endif
/* Fork another process. We'll remember the process id
* so that we can later use it to kill the filter if
* necessary.
*/
envp = gimp_environ_table_get_envp (plug_in->gimp->environ_table);
if (! g_spawn_async (NULL, plug_in->args, envp,
G_SPAWN_LEAVE_DESCRIPTORS_OPEN |
G_SPAWN_DO_NOT_REAP_CHILD,
plug_in_prep_for_exec, plug_in,
&plug_in->pid,
&error))
{
g_message ("Unable to run Plug-In: \"%s\"\n(%s)\n%s",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
error->message);
g_error_free (error);
plug_in_destroy (plug_in);
return FALSE;
}
g_io_channel_unref (plug_in->his_read);
plug_in->his_read = NULL;
g_io_channel_unref (plug_in->his_write);
plug_in->his_write = NULL;
if (! plug_in->synchronous)
{
plug_in->input_id = g_io_add_watch (plug_in->my_read,
G_IO_IN | G_IO_PRI |
G_IO_ERR | G_IO_HUP,
plug_in_recv_message,
plug_in);
open_plug_ins = g_slist_prepend (open_plug_ins, plug_in);
}
plug_in->open = TRUE;
return TRUE;
}
void
plug_in_close (PlugIn *plug_in,
gboolean kill_it)
{
gint status;
#ifndef G_OS_WIN32
struct timeval tv;
#endif
g_return_if_fail (plug_in != NULL);
g_return_if_fail (plug_in->open == TRUE);
if (! plug_in->open)
return;
plug_in->open = FALSE;
/* Ask the filter to exit gracefully */
if (kill_it && plug_in->pid)
{
plug_in_push (plug_in);
gp_quit_write (plug_in->my_write, plug_in);
plug_in_pop ();
/* give the plug-in some time (10 ms) */
#ifndef G_OS_WIN32
tv.tv_sec = 0;
tv.tv_usec = 100; /* But this is 0.1 ms? */
select (0, NULL, NULL, NULL, &tv);
#else
Sleep (10);
#endif
}
/* If necessary, kill the filter. */
#ifndef G_OS_WIN32
if (kill_it && plug_in->pid)
status = kill (plug_in->pid, SIGKILL);
/* Wait for the process to exit. This will happen
* immediately if it was just killed.
*/
if (plug_in->pid)
waitpid (plug_in->pid, &status, 0);
#else
if (kill_it && plug_in->pid)
{
/* Trying to avoid TerminateProcess (does mostly work).
* Otherwise some of our needed DLLs may get into an unstable state
* (see Win32 API docs).
*/
DWORD dwExitCode = STILL_ACTIVE;
DWORD dwTries = 10;
while ((STILL_ACTIVE == dwExitCode)
&& GetExitCodeProcess ((HANDLE) plug_in->pid, &dwExitCode)
&& (dwTries > 0))
{
Sleep(10);
dwTries--;
}
if (STILL_ACTIVE == dwExitCode)
{
g_warning ("Terminating %s ...", plug_in->args[0]);
TerminateProcess ((HANDLE) plug_in->pid, 0);
}
}
#endif
plug_in->pid = 0;
/* Remove the input handler. */
if (plug_in->input_id)
{
g_source_remove (plug_in->input_id);
plug_in->input_id = 0;
}
/* Close the pipes. */
if (plug_in->my_read != NULL)
{
g_io_channel_unref (plug_in->my_read);
plug_in->my_read = NULL;
}
if (plug_in->my_write != NULL)
{
g_io_channel_unref (plug_in->my_write);
plug_in->my_write = NULL;
}
if (plug_in->his_read != NULL)
{
g_io_channel_unref (plug_in->his_read);
plug_in->his_read = NULL;
}
if (plug_in->his_write != NULL)
{
g_io_channel_unref (plug_in->his_write);
plug_in->his_write = NULL;
}
wire_clear_error ();
if (plug_in->progress)
plug_in_progress_end (plug_in);
if (plug_in->recurse)
{
gimp_main_loop_quit (plug_in->gimp);
plug_in->recurse = FALSE;
}
plug_in->synchronous = FALSE;
/* Unregister any temporary procedures. */
if (plug_in->temp_proc_defs)
{
GSList *list;
for (list = plug_in->temp_proc_defs; list; list = g_slist_next (list))
plug_ins_temp_proc_def_remove (plug_in->gimp,
(PlugInProcDef *) list->data);
g_slist_free (plug_in->temp_proc_defs);
plug_in->temp_proc_defs = NULL;
}
/* Close any dialogs that this plugin might have opened */
brush_select_dialogs_check ();
gradient_select_dialogs_check ();
palette_select_dialogs_check ();
pattern_select_dialogs_check ();
open_plug_ins = g_slist_remove (open_plug_ins, plug_in);
}
static Argument *
plug_in_get_current_return_vals (ProcRecord *proc_rec)
{
Argument *return_vals;
gint nargs;
/* Return the status code plus the current return values. */
nargs = proc_rec->num_values + 1;
if (current_return_vals && current_return_nvals == nargs)
{
return_vals = current_return_vals;
}
else if (current_return_vals)
{
/* Allocate new return values of the correct size. */
return_vals = procedural_db_return_args (proc_rec, FALSE);
/* Copy all of the arguments we can. */
memcpy (return_vals, current_return_vals,
sizeof (Argument) * MIN (current_return_nvals, nargs));
/* Free the old argument pointer. This will cause a memory leak
only if there were more values returned than we need (which
shouldn't ever happen). */
g_free (current_return_vals);
}
else
{
/* Just return a dummy set of values. */
return_vals = procedural_db_return_args (proc_rec, FALSE);
}
/* We have consumed any saved values, so clear them. */
current_return_nvals = 0;
current_return_vals = NULL;
return return_vals;
}
Argument *
plug_in_run (Gimp *gimp,
ProcRecord *proc_rec,
Argument *args,
gint argc,
gboolean synchronous,
gboolean destroy_values,
gint gdisp_ID)
{
GPConfig config;
GPProcRun proc_run;
Argument *return_vals;
PlugIn *plug_in;
return_vals = NULL;
if (proc_rec->proc_type == GIMP_TEMPORARY)
{
return_vals = plug_in_temp_run (proc_rec, args, argc);
goto done;
}
plug_in = plug_in_new (gimp, proc_rec->exec_method.plug_in.filename);
if (plug_in)
{
if (plug_in_open (plug_in))
{
plug_in->recurse = synchronous;
plug_in_push (plug_in);
config.version = GP_VERSION;
config.tile_width = TILE_WIDTH;
config.tile_height = TILE_HEIGHT;
config.shm_ID = shm_ID;
config.gamma = gimp->config->gamma_val;
config.install_cmap = gimp->config->install_cmap;
config.show_tool_tips = GIMP_GUI_CONFIG (gimp->config)->show_tool_tips;
config.min_colors = CLAMP (gimp->config->min_colors, 27, 256);
config.gdisp_ID = gdisp_ID;
proc_run.name = proc_rec->name;
proc_run.nparams = argc;
proc_run.params = plug_in_args_to_params (args, argc, FALSE);
if (! gp_config_write (plug_in->my_write, &config, plug_in) ||
! gp_proc_run_write (plug_in->my_write, &proc_run, plug_in) ||
! wire_flush (plug_in->my_write, plug_in))
{
return_vals = procedural_db_return_args (proc_rec, FALSE);
goto done;
}
plug_in_pop ();
plug_in_params_destroy (proc_run.params, proc_run.nparams, FALSE);
/* If this is an automatically installed extension, wait for an
* installation-confirmation message
*/
if ((proc_rec->proc_type == GIMP_EXTENSION) &&
(proc_rec->num_args == 0))
{
gimp_main_loop (gimp);
}
if (plug_in->recurse)
{
gimp_main_loop (gimp);
return_vals = plug_in_get_current_return_vals (proc_rec);
}
}
}
done:
if (return_vals && destroy_values)
{
procedural_db_destroy_args (return_vals, proc_rec->num_values);
return_vals = NULL;
}
return return_vals;
}
void
plug_in_repeat (Gimp *gimp,
gint display_ID,
gint image_ID,
gint drawable_ID,
gboolean with_interface)
{
Argument *args;
gint i;
if (last_plug_in)
{
/* construct the procedures arguments */
args = g_new (Argument, 3);
/* initialize the first three argument types */
for (i = 0; i < 3; i++)
args[i].arg_type = last_plug_in->args[i].arg_type;
/* initialize the first three plug-in arguments */
args[0].value.pdb_int = (with_interface ?
GIMP_RUN_INTERACTIVE : GIMP_RUN_WITH_LAST_VALS);
args[1].value.pdb_int = image_ID;
args[2].value.pdb_int = drawable_ID;
/* run the plug-in procedure */
plug_in_run (gimp, last_plug_in, args, 3, FALSE, TRUE, display_ID);
g_free (args);
}
}
static gboolean
plug_in_recv_message (GIOChannel *channel,
GIOCondition cond,
gpointer data)
{
PlugIn *plug_in;
gboolean got_message = FALSE;
plug_in = (PlugIn *) data;
if (plug_in != current_plug_in)
plug_in_push (plug_in);
if (plug_in->my_read == NULL)
return TRUE;
if (cond & (G_IO_IN | G_IO_PRI))
{
WireMessage msg;
memset (&msg, 0, sizeof (WireMessage));
if (! wire_read_msg (plug_in->my_read, &msg, plug_in))
{
plug_in_close (plug_in, TRUE);
}
else
{
plug_in_handle_message (plug_in, &msg);
wire_destroy (&msg);
got_message = TRUE;
}
}
if (cond & (G_IO_ERR | G_IO_HUP))
{
if (plug_in->open)
{
plug_in_close (plug_in, TRUE);
}
}
if (! got_message)
g_message (_("Plug-In crashed: \"%s\"\n(%s)\n\n"
"The dying Plug-In may have messed up GIMP's internal state.\n"
"You may want to save your images and restart GIMP\n"
"to be on the safe side."),
g_path_get_basename (plug_in->args[0]),
plug_in->args[0]);
if (! plug_in->open)
plug_in_destroy (plug_in);
else
plug_in_pop ();
return TRUE;
}
static void
plug_in_handle_message (PlugIn *plug_in,
WireMessage *msg)
{
switch (msg->type)
{
case GP_QUIT:
plug_in_handle_quit (plug_in);
break;
case GP_CONFIG:
g_warning ("plug_in_handle_message(): "
"received a config message (should not happen)");
plug_in_close (plug_in, TRUE);
break;
case GP_TILE_REQ:
plug_in_handle_tile_req (plug_in, msg->data);
break;
case GP_TILE_ACK:
g_warning ("plug_in_handle_message(): "
"received a tile ack message (should not happen)");
plug_in_close (plug_in, TRUE);
break;
case GP_TILE_DATA:
g_warning ("plug_in_handle_message(): "
"received a tile data message (should not happen)");
plug_in_close (plug_in, TRUE);
break;
case GP_PROC_RUN:
plug_in_handle_proc_run (plug_in, msg->data);
break;
case GP_PROC_RETURN:
plug_in_handle_proc_return (plug_in, msg->data);
plug_in_close (plug_in, FALSE);
break;
case GP_TEMP_PROC_RUN:
g_warning ("plug_in_handle_message(): "
"received a temp proc run message (should not happen)");
plug_in_close (plug_in, TRUE);
break;
case GP_TEMP_PROC_RETURN:
plug_in_handle_proc_return (plug_in, msg->data);
gimp_main_loop_quit (plug_in->gimp);
break;
case GP_PROC_INSTALL:
plug_in_handle_proc_install (plug_in, msg->data);
break;
case GP_PROC_UNINSTALL:
plug_in_handle_proc_uninstall (plug_in, msg->data);
break;
case GP_EXTENSION_ACK:
plug_in_handle_extension_ack (plug_in);
break;
case GP_HAS_INIT:
plug_in_handle_has_init (plug_in);
break;
}
}
static void
plug_in_handle_quit (PlugIn *plug_in)
{
plug_in_close (plug_in, FALSE);
}
static void
plug_in_handle_tile_req (PlugIn *plug_in,
GPTileReq *tile_req)
{
GPTileData tile_data;
GPTileData *tile_info;
WireMessage msg;
TileManager *tm;
Tile *tile;
if (tile_req->drawable_ID == -1)
{
/* this branch communicates with libgimp/gimptile.c:gimp_tile_put() */
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 = (shm_ID == -1) ? FALSE : TRUE;
tile_data.data = NULL;
if (! gp_tile_data_write (plug_in->my_write, &tile_data, plug_in))
{
g_warning ("plug_in_handle_tile_req: ERROR");
plug_in_close (plug_in, TRUE);
return;
}
if (! wire_read_msg (plug_in->my_read, &msg, plug_in))
{
g_warning ("plug_in_handle_tile_req: ERROR");
plug_in_close (plug_in, TRUE);
return;
}
if (msg.type != GP_TILE_DATA)
{
g_warning ("expected tile data and received: %d", msg.type);
plug_in_close (plug_in, TRUE);
return;
}
tile_info = msg.data;
if (tile_info->shadow)
tm = gimp_drawable_shadow ((GimpDrawable *)
gimp_item_get_by_ID (plug_in->gimp,
tile_info->drawable_ID));
else
tm = gimp_drawable_data ((GimpDrawable *)
gimp_item_get_by_ID (plug_in->gimp,
tile_info->drawable_ID));
if (!tm)
{
g_warning ("plug-in requested invalid drawable (killing)");
plug_in_close (plug_in, TRUE);
return;
}
tile = tile_manager_get (tm, tile_info->tile_num, TRUE, TRUE);
if (!tile)
{
g_warning ("plug-in requested invalid tile (killing)");
plug_in_close (plug_in, TRUE);
return;
}
if (tile_data.use_shm)
memcpy (tile_data_pointer (tile, 0, 0), shm_addr, tile_size (tile));
else
memcpy (tile_data_pointer (tile, 0, 0), tile_info->data, tile_size (tile));
tile_release (tile, TRUE);
wire_destroy (&msg);
if (! gp_tile_ack_write (plug_in->my_write, plug_in))
{
g_warning ("plug_in_handle_tile_req: ERROR");
plug_in_close (plug_in, TRUE);
return;
}
}
else
{
/* this branch communicates with libgimp/gimptile.c:gimp_tile_get() */
if (tile_req->shadow)
tm = gimp_drawable_shadow ((GimpDrawable *)
gimp_item_get_by_ID (plug_in->gimp,
tile_req->drawable_ID));
else
tm = gimp_drawable_data ((GimpDrawable *)
gimp_item_get_by_ID (plug_in->gimp,
tile_req->drawable_ID));
if (! tm)
{
g_warning ("plug-in requested invalid drawable (killing)");
plug_in_close (plug_in, TRUE);
return;
}
tile = tile_manager_get (tm, tile_req->tile_num, TRUE, FALSE);
if (! tile)
{
g_warning ("plug-in requested invalid tile (killing)");
plug_in_close (plug_in, TRUE);
return;
}
tile_data.drawable_ID = tile_req->drawable_ID;
tile_data.tile_num = tile_req->tile_num;
tile_data.shadow = tile_req->shadow;
tile_data.bpp = tile_bpp (tile);
tile_data.width = tile_ewidth (tile);
tile_data.height = tile_eheight (tile);
tile_data.use_shm = (shm_ID == -1) ? FALSE : TRUE;
if (tile_data.use_shm)
memcpy (shm_addr, tile_data_pointer (tile, 0, 0), tile_size (tile));
else
tile_data.data = tile_data_pointer (tile, 0, 0);
if (! gp_tile_data_write (plug_in->my_write, &tile_data, plug_in))
{
g_message ("plug_in_handle_tile_req: ERROR");
plug_in_close (plug_in, TRUE);
return;
}
tile_release (tile, FALSE);
if (! wire_read_msg (plug_in->my_read, &msg, plug_in))
{
g_message ("plug_in_handle_tile_req: ERROR");
plug_in_close (plug_in, TRUE);
return;
}
if (msg.type != GP_TILE_ACK)
{
g_warning ("expected tile ack and received: %d", msg.type);
plug_in_close (plug_in, TRUE);
return;
}
wire_destroy (&msg);
}
}
static void
plug_in_handle_proc_run (PlugIn *plug_in,
GPProcRun *proc_run)
{
GPProcReturn proc_return;
ProcRecord *proc_rec;
Argument *args;
Argument *return_vals;
PlugInBlocked *blocked;
args = plug_in_params_to_args (proc_run->params, proc_run->nparams, FALSE);
proc_rec = procedural_db_lookup (plug_in->gimp, proc_run->name);
if (proc_rec)
{
return_vals = procedural_db_execute (plug_in->gimp, proc_run->name, args);
}
else
{
/* if the name lookup failed, construct a
* dummy "executiuon error" return value --Michael
*/
return_vals = g_new (Argument, 1);
return_vals[0].arg_type = GIMP_PDB_STATUS;
return_vals[0].value.pdb_int = GIMP_PDB_EXECUTION_ERROR;
}
if (return_vals)
{
proc_return.name = proc_run->name;
if (proc_rec)
{
proc_return.nparams = proc_rec->num_values + 1;
proc_return.params = plug_in_args_to_params (return_vals, proc_rec->num_values + 1, FALSE);
}
else
{
proc_return.nparams = 1;
proc_return.params = plug_in_args_to_params (return_vals, 1, FALSE);
}
if (! gp_proc_return_write (plug_in->my_write, &proc_return, plug_in))
{
g_warning ("plug_in_handle_proc_run: ERROR");
plug_in_close (plug_in, TRUE);
return;
}
plug_in_args_destroy (args, proc_run->nparams, FALSE);
plug_in_args_destroy (return_vals, (proc_rec ? (proc_rec->num_values + 1) : 1), TRUE);
plug_in_params_destroy (proc_return.params, proc_return.nparams, FALSE);
}
else
{
blocked = g_new0 (PlugInBlocked, 1);
blocked->plug_in = plug_in;
blocked->proc_name = g_strdup (proc_run->name);
blocked_plug_ins = g_slist_prepend (blocked_plug_ins, blocked);
}
}
static void
plug_in_handle_proc_return (PlugIn *plug_in,
GPProcReturn *proc_return)
{
PlugInBlocked *blocked;
GSList *tmp;
if (plug_in->recurse)
{
current_return_vals = plug_in_params_to_args (proc_return->params,
proc_return->nparams,
TRUE);
current_return_nvals = proc_return->nparams;
}
else
{
for (tmp = blocked_plug_ins; tmp; tmp = g_slist_next (tmp))
{
blocked = tmp->data;
if (blocked->proc_name && proc_return->name &&
strcmp (blocked->proc_name, proc_return->name) == 0)
{
plug_in_push (blocked->plug_in);
if (! gp_proc_return_write (blocked->plug_in->my_write,
proc_return,
blocked->plug_in))
{
g_message ("plug_in_handle_proc_run: ERROR");
plug_in_close (blocked->plug_in, TRUE);
return;
}
plug_in_pop ();
blocked_plug_ins = g_slist_remove (blocked_plug_ins, blocked);
g_free (blocked->proc_name);
g_free (blocked);
break;
}
}
}
}
static void
plug_in_handle_proc_install (PlugIn *plug_in,
GPProcInstall *proc_install)
{
PlugInDef *plug_in_def = NULL;
PlugInProcDef *proc_def = NULL;
ProcRecord *proc = NULL;
GSList *tmp = NULL;
gchar *prog = NULL;
gboolean valid_utf8 = FALSE;
gint i;
/* Argument checking
* --only sanity check arguments when the procedure requests a menu path
*/
if (proc_install->menu_path)
{
if (strncmp (proc_install->menu_path, "<Toolbox>", 9) == 0)
{
if ((proc_install->nparams < 1) ||
(proc_install->params[0].type != GIMP_PDB_INT32))
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install procedure \"%s\"\n"
"which does not take the standard Plug-In args.",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
proc_install->name);
return;
}
}
else if (strncmp (proc_install->menu_path, "<Image>", 7) == 0)
{
if ((proc_install->nparams < 3) ||
(proc_install->params[0].type != GIMP_PDB_INT32) ||
(proc_install->params[1].type != GIMP_PDB_IMAGE) ||
(proc_install->params[2].type != GIMP_PDB_DRAWABLE))
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install procedure \"%s\"\n"
"which does not take the standard Plug-In args.",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
proc_install->name);
return;
}
}
else if (strncmp (proc_install->menu_path, "<Load>", 6) == 0)
{
if ((proc_install->nparams < 3) ||
(proc_install->params[0].type != GIMP_PDB_INT32) ||
(proc_install->params[1].type != GIMP_PDB_STRING) ||
(proc_install->params[2].type != GIMP_PDB_STRING))
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install procedure \"%s\"\n"
"which does not take the standard Plug-In args.",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
proc_install->name);
return;
}
}
else if (strncmp (proc_install->menu_path, "<Save>", 6) == 0)
{
if ((proc_install->nparams < 5) ||
(proc_install->params[0].type != GIMP_PDB_INT32) ||
(proc_install->params[1].type != GIMP_PDB_IMAGE) ||
(proc_install->params[2].type != GIMP_PDB_DRAWABLE) ||
(proc_install->params[3].type != GIMP_PDB_STRING) ||
(proc_install->params[4].type != GIMP_PDB_STRING))
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install procedure \"%s\"\n"
"which does not take the standard Plug-In args.",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
proc_install->name);
return;
}
}
else
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install procedure \"%s\"\n"
"in an invalid menu location.\n"
"Use either \"<Toolbox>\", \"<Image>\", "
"\"<Load>\", or \"<Save>\".",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
proc_install->name);
return;
}
}
/* 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-1].type != GIMP_PDB_INT32)
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install procedure \"%s\"\n"
"which fails to comply with the array parameter\n"
"passing standard. Argument %d is noncompliant.",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0],
proc_install->name, i);
return;
}
}
/* Sanity check strings for UTF-8 validity */
if ((proc_install->menu_path == NULL ||
g_utf8_validate (proc_install->menu_path, -1, NULL)) &&
(g_utf8_validate (proc_install->name, -1, NULL)) &&
(proc_install->blurb == NULL ||
g_utf8_validate (proc_install->blurb, -1, NULL)) &&
(proc_install->help == NULL ||
g_utf8_validate (proc_install->help, -1, NULL)) &&
(proc_install->author == NULL ||
g_utf8_validate (proc_install->author, -1, NULL)) &&
(proc_install->copyright == NULL ||
g_utf8_validate (proc_install->copyright, -1, NULL)) &&
(proc_install->date == NULL ||
g_utf8_validate (proc_install->date, -1, NULL)))
{
valid_utf8 = TRUE;
for (i = 0; i < proc_install->nparams && valid_utf8; i++)
{
if (! (g_utf8_validate (proc_install->params[i].name, -1, NULL) &&
(proc_install->params[i].description == NULL ||
g_utf8_validate (proc_install->params[i].description, -1, NULL))))
valid_utf8 = FALSE;
}
for (i = 0; i < proc_install->nreturn_vals && valid_utf8; i++)
{
if (! (g_utf8_validate (proc_install->return_vals[i].name, -1, NULL) &&
(proc_install->return_vals[i].description == NULL ||
g_utf8_validate (proc_install->return_vals[i].description, -1, NULL))))
valid_utf8 = FALSE;
}
}
if (! valid_utf8)
{
g_message ("Plug-In \"%s\"\n(%s)\n"
"attempted to install a procedure with invalid UTF-8 strings.\n",
g_path_get_basename (plug_in->args[0]),
plug_in->args[0]);
return;
}
/* Initialization */
switch (proc_install->type)
{
case GIMP_PLUGIN:
case GIMP_EXTENSION:
plug_in_def = plug_in->plug_in_def;
prog = plug_in_def->prog;
tmp = plug_in_def->proc_defs;
break;
case GIMP_TEMPORARY:
plug_in_def = NULL;
prog = "none";
tmp = plug_in->temp_proc_defs;
break;
}
while (tmp)
{
proc_def = tmp->data;
tmp = tmp->next;
if (strcmp (proc_def->db_info.name, proc_install->name) == 0)
{
if (proc_install->type == GIMP_TEMPORARY)
{
plug_in->temp_proc_defs = g_slist_remove (plug_in->temp_proc_defs,
proc_def);
plug_ins_temp_proc_def_remove (plug_in->gimp, proc_def);
}
else
{
plug_in_def->proc_defs = g_slist_remove (plug_in_def->proc_defs,
proc_def);
plug_in_proc_def_free (proc_def);
}
break;
}
}
proc_def = plug_in_proc_def_new ();
proc_def->prog = g_strdup (prog);
proc_def->menu_path = g_strdup (proc_install->menu_path);
proc_def->accelerator = NULL;
proc_def->extensions = NULL;
proc_def->prefixes = NULL;
proc_def->magics = NULL;
proc_def->image_types = g_strdup (proc_install->image_types);
proc_def->image_types_val = plug_ins_image_types_parse (proc_def->image_types);
/* Install temp one use todays time */
proc_def->mtime = time (NULL);
proc = &proc_def->db_info;
/* The procedural database procedure */
proc->name = g_strdup (proc_install->name);
proc->blurb = g_strdup (proc_install->blurb);
proc->help = g_strdup (proc_install->help);
proc->author = g_strdup (proc_install->author);
proc->copyright = g_strdup (proc_install->copyright);
proc->date = g_strdup (proc_install->date);
proc->proc_type = proc_install->type;
proc->num_args = proc_install->nparams;
proc->num_values = proc_install->nreturn_vals;
proc->args = g_new0 (ProcArg, proc->num_args);
proc->values = g_new0 (ProcArg, proc->num_values);
for (i = 0; i < proc->num_args; i++)
{
proc->args[i].arg_type = proc_install->params[i].type;
proc->args[i].name = g_strdup (proc_install->params[i].name);
proc->args[i].description = g_strdup (proc_install->params[i].description);
}
for (i = 0; i < proc->num_values; i++)
{
proc->values[i].arg_type = proc_install->return_vals[i].type;
proc->values[i].name = g_strdup (proc_install->return_vals[i].name);
proc->values[i].description = g_strdup (proc_install->return_vals[i].description);
}
switch (proc_install->type)
{
case GIMP_PLUGIN:
case GIMP_EXTENSION:
plug_in_def->proc_defs = g_slist_prepend (plug_in_def->proc_defs,
proc_def);
break;
case GIMP_TEMPORARY:
plug_in->temp_proc_defs = g_slist_prepend (plug_in->temp_proc_defs,
proc_def);
proc->exec_method.temporary.plug_in = plug_in;
plug_ins_temp_proc_def_add (plug_in->gimp, proc_def,
plug_ins_locale_domain (plug_in->gimp,
plug_in->args[0],
NULL),
plug_ins_help_path (plug_in->gimp,
plug_in->args[0]));
break;
}
}
static void
plug_in_handle_proc_uninstall (PlugIn *plug_in,
GPProcUninstall *proc_uninstall)
{
GSList *tmp;
for (tmp = plug_in->temp_proc_defs; tmp; tmp = g_slist_next (tmp))
{
PlugInProcDef *proc_def;
proc_def = tmp->data;
if (! strcmp (proc_def->db_info.name, proc_uninstall->name))
{
plug_in->temp_proc_defs = g_slist_remove (plug_in->temp_proc_defs,
proc_def);
plug_ins_temp_proc_def_remove (plug_in->gimp, proc_def);
break;
}
}
}
static void
plug_in_handle_extension_ack (PlugIn *plug_in)
{
gimp_main_loop_quit (plug_in->gimp);
}
static void
plug_in_handle_has_init (PlugIn *plug_in)
{
if (plug_in->query)
plug_in_def_set_has_init (plug_in->plug_in_def, TRUE);
}
static gboolean
plug_in_write (GIOChannel *channel,
guint8 *buf,
gulong count,
gpointer user_data)
{
PlugIn *plug_in;
gulong bytes;
plug_in = (PlugIn *) user_data;
while (count > 0)
{
if ((plug_in->write_buffer_index + count) >= WRITE_BUFFER_SIZE)
{
bytes = WRITE_BUFFER_SIZE - plug_in->write_buffer_index;
memcpy (&plug_in->write_buffer[plug_in->write_buffer_index],
buf, bytes);
plug_in->write_buffer_index += bytes;
if (! wire_flush (channel, plug_in))
return FALSE;
}
else
{
bytes = count;
memcpy (&plug_in->write_buffer[plug_in->write_buffer_index],
buf, bytes);
plug_in->write_buffer_index += bytes;
}
buf += bytes;
count -= bytes;
}
return TRUE;
}
static gboolean
plug_in_flush (GIOChannel *channel,
gpointer user_data)
{
PlugIn *plug_in;
GIOStatus status;
GError *error = NULL;
gint count;
gsize bytes;
plug_in = (PlugIn *) user_data;
if (plug_in->write_buffer_index > 0)
{
count = 0;
while (count != plug_in->write_buffer_index)
{
do
{
bytes = 0;
status = g_io_channel_write_chars (channel,
&plug_in->write_buffer[count],
(plug_in->write_buffer_index - count),
&bytes,
&error);
}
while (status == G_IO_STATUS_AGAIN);
if (status != G_IO_STATUS_NORMAL)
{
if (error)
{
g_warning ("%s: plug_in_flush(): error: %s",
g_get_prgname (), error->message);
g_error_free (error);
}
else
{
g_warning ("%s: plug_in_flush(): error",
g_get_prgname ());
}
return FALSE;
}
count += bytes;
}
plug_in->write_buffer_index = 0;
}
return TRUE;
}
static void
plug_in_push (PlugIn *plug_in)
{
g_return_if_fail (plug_in != NULL);
current_plug_in = plug_in;
plug_in_stack = g_slist_prepend (plug_in_stack, current_plug_in);
}
static void
plug_in_pop (void)
{
GSList *tmp;
if (current_plug_in)
{
tmp = plug_in_stack;
plug_in_stack = plug_in_stack->next;
tmp->next = NULL;
g_slist_free (tmp);
}
if (plug_in_stack)
{
current_plug_in = plug_in_stack->data;
}
else
{
current_plug_in = NULL;
}
}
static Argument *
plug_in_temp_run (ProcRecord *proc_rec,
Argument *args,
gint argc)
{
Argument *return_vals;
PlugIn *plug_in;
GPProcRun proc_run;
gint old_recurse;
return_vals = NULL;
plug_in = (PlugIn *) proc_rec->exec_method.temporary.plug_in;
if (plug_in)
{
if (plug_in->busy)
{
return_vals = procedural_db_return_args (proc_rec, FALSE);
goto done;
}
plug_in->busy = TRUE;
plug_in_push (plug_in);
proc_run.name = proc_rec->name;
proc_run.nparams = argc;
proc_run.params = plug_in_args_to_params (args, argc, FALSE);
if (! gp_temp_proc_run_write (plug_in->my_write, &proc_run, plug_in) ||
! wire_flush (plug_in->my_write, plug_in))
{
return_vals = procedural_db_return_args (proc_rec, FALSE);
goto done;
}
plug_in_pop ();
plug_in_params_destroy (proc_run.params, proc_run.nparams, FALSE);
old_recurse = plug_in->recurse;
plug_in->recurse = TRUE;
/* gtk_main (); */
/* return_vals = plug_in_get_current_return_vals (proc_rec); */
return_vals = procedural_db_return_args (proc_rec, TRUE);
plug_in->recurse = old_recurse;
plug_in->busy = FALSE;
}
done:
return return_vals;
}
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