4 * Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 #include "plugin_mgr.h"
34 #include "plugin_desc.h"
39 plugin_is_valid (const LADSPA_Descriptor
* descriptor
)
42 unsigned long icount
= 0;
43 unsigned long ocount
= 0;
45 for (i
= 0; i
< descriptor
->PortCount
; i
++)
47 if (!LADSPA_IS_PORT_AUDIO (descriptor
->PortDescriptors
[i
]))
50 if (LADSPA_IS_PORT_INPUT (descriptor
->PortDescriptors
[i
]))
56 if (icount
== 0 || ocount
== 0)
63 plugin_mgr_get_object_file_plugins (ui_t
* ui
, plugin_mgr_t
* plugin_mgr
, const char * filename
)
67 LADSPA_Descriptor_Function get_descriptor
;
68 const LADSPA_Descriptor
* descriptor
;
69 unsigned long plugin_index
;
70 plugin_desc_t
* desc
, * other_desc
= NULL
;
75 /* open the object file */
76 dl_handle
= dlopen (filename
, RTLD_NOW
|RTLD_GLOBAL
);
79 fprintf (stderr
, "%s: error opening shared object file '%s': %s\n",
80 __FUNCTION__
, filename
, dlerror());
85 /* get the get_descriptor function */
86 dlerror (); /* clear the error report */
88 get_descriptor
= (LADSPA_Descriptor_Function
)
89 dlsym (dl_handle
, "ladspa_descriptor");
93 fprintf (stderr
, "%s: error finding ladspa_descriptor symbol in object file '%s': %s\n",
94 __FUNCTION__
, filename
, dlerr
);
100 while ( (descriptor
= get_descriptor (plugin_index
)) )
102 if (!plugin_is_valid (descriptor
))
109 /* check it doesn't already exist */
111 for (list
= plugin_mgr
->all_plugins
; list
; list
= g_slist_next (list
))
113 other_desc
= (plugin_desc_t
*) list
->data
;
115 if (other_desc
->id
== descriptor
->UniqueID
)
124 printf ("Plugin %ld exists in both '%s' and '%s'; using version in '%s'\n",
125 descriptor
->UniqueID
, other_desc
->object_file
, filename
, other_desc
->object_file
);
131 desc
= plugin_desc_new_with_descriptor (filename
, plugin_index
, descriptor
);
132 plugin_mgr
->all_plugins
= g_slist_append (plugin_mgr
->all_plugins
, desc
);
134 plugin_mgr
->plugin_count
++;
136 /* print in the splash screen */
137 /* printf ("Loaded plugin '%s'\n", desc->name); */
140 err
= dlclose (dl_handle
);
143 fprintf (stderr
, "%s: error closing object file '%s': %s\n",
144 __FUNCTION__
, filename
, dlerror ());
149 plugin_mgr_get_dir_plugins (ui_t
* ui
, plugin_mgr_t
* plugin_mgr
, const char * dir
)
152 struct dirent
* dir_entry
;
157 dir_stream
= opendir (dir
);
160 /* fprintf (stderr, "%s: error opening directory '%s': %s\n",
161 __FUNCTION__, dir, strerror (errno)); */
165 dirlen
= strlen (dir
);
167 while ( (dir_entry
= readdir (dir_stream
)) )
169 if (strcmp (dir_entry
->d_name
, ".") == 0 ||
170 strcmp (dir_entry
->d_name
, "..") == 0)
173 file_name
= g_malloc (dirlen
+ 1 + strlen (dir_entry
->d_name
) + 1);
175 strcpy (file_name
, dir
);
176 if (file_name
[dirlen
- 1] == '/')
177 strcpy (file_name
+ dirlen
, dir_entry
->d_name
);
180 file_name
[dirlen
] = '/';
181 strcpy (file_name
+ dirlen
+ 1, dir_entry
->d_name
);
184 plugin_mgr_get_object_file_plugins (ui
, plugin_mgr
, file_name
);
189 err
= closedir (dir_stream
);
191 fprintf (stderr
, "%s: error closing directory '%s': %s\n",
192 __FUNCTION__
, dir
, strerror (errno
));
196 plugin_mgr_get_path_plugins (ui_t
* ui
, plugin_mgr_t
* plugin_mgr
)
198 char * ladspa_path
, * dir
;
200 ladspa_path
= g_strdup (getenv ("LADSPA_PATH"));
202 ladspa_path
= g_strdup ("/usr/local/lib/ladspa:/usr/lib/ladspa");
204 dir
= strtok (ladspa_path
, ":");
206 plugin_mgr_get_dir_plugins (ui
, plugin_mgr
, dir
);
207 while ((dir
= strtok (NULL
, ":")));
209 g_free (ladspa_path
);
213 plugin_mgr_sort (gconstpointer a
, gconstpointer b
)
215 const plugin_desc_t
* da
;
216 const plugin_desc_t
* db
;
217 da
= (const plugin_desc_t
*) a
;
218 db
= (const plugin_desc_t
*) b
;
220 return strcasecmp (da
->name
, db
->name
);
224 plugin_mgr_new (ui_t
* ui
)
228 pm
= g_malloc (sizeof (plugin_mgr_t
));
229 pm
->all_plugins
= NULL
;
231 pm
->plugin_count
= 0;
233 plugin_mgr_get_path_plugins (ui
, pm
);
235 if (!pm
->all_plugins
)
237 fprintf (stderr
, "No LADSPA plugins were found!\n\nCheck your LADSPA_PATH environment variable.\n");
241 pm
->all_plugins
= g_slist_sort (pm
->all_plugins
, plugin_mgr_sort
);
247 plugin_mgr_destroy (plugin_mgr_t
* plugin_mgr
)
251 for (list
= plugin_mgr
->all_plugins
; list
; list
= g_slist_next (list
))
252 plugin_desc_destroy ((plugin_desc_t
*) list
->data
);
254 g_slist_free (plugin_mgr
->plugins
);
255 g_slist_free (plugin_mgr
->all_plugins
);
261 plugin_mgr_set_plugins (plugin_mgr_t
* plugin_mgr
, unsigned long rack_channels
)
264 plugin_desc_t
* desc
;
266 /* clear the current plugins */
267 g_slist_free (plugin_mgr
->plugins
);
268 plugin_mgr
->plugins
= NULL
;
270 for (list
= plugin_mgr
->all_plugins
; list
; list
= g_slist_next (list
))
272 desc
= (plugin_desc_t
*) list
->data
;
274 if (plugin_desc_get_copies (desc
, rack_channels
) != 0)
275 plugin_mgr
->plugins
= g_slist_append (plugin_mgr
->plugins
, desc
);
279 static plugin_desc_t
*
280 plugin_mgr_find_desc (plugin_mgr_t
* plugin_mgr
, GSList
* plugins
, unsigned long id
)
283 plugin_desc_t
* desc
;
285 for (list
= plugins
; list
; list
= g_slist_next (list
))
287 desc
= (plugin_desc_t
*) list
->data
;
297 plugin_mgr_get_desc (plugin_mgr_t
* plugin_mgr
, unsigned long id
)
299 return plugin_mgr_find_desc (plugin_mgr
, plugin_mgr
->plugins
, id
);
303 plugin_mgr_get_any_desc (plugin_mgr_t
* plugin_mgr
, unsigned long id
)
305 return plugin_mgr_find_desc (plugin_mgr
, plugin_mgr
->all_plugins
, id
);