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"
38 plugin_is_valid (const LADSPA_Descriptor * descriptor)
41 unsigned long icount = 0;
42 unsigned long ocount = 0;
44 for (i = 0; i < descriptor->PortCount; i++)
46 if (!LADSPA_IS_PORT_AUDIO (descriptor->PortDescriptors[i]))
49 if (LADSPA_IS_PORT_INPUT (descriptor->PortDescriptors[i]))
55 if (icount == 0 || ocount == 0)
62 plugin_mgr_get_object_file_plugins (plugin_mgr_t * plugin_mgr, const char * filename)
66 LADSPA_Descriptor_Function get_descriptor;
67 const LADSPA_Descriptor * descriptor;
68 unsigned long plugin_index;
69 plugin_desc_t * desc, * other_desc = NULL;
74 /* open the object file */
75 dl_handle = dlopen (filename, RTLD_NOW|RTLD_GLOBAL);
78 fprintf (stderr, "%s: error opening shared object file '%s': %s\n",
79 __FUNCTION__, filename, dlerror());
84 /* get the get_descriptor function */
85 dlerror (); /* clear the error report */
87 get_descriptor = (LADSPA_Descriptor_Function)
88 dlsym (dl_handle, "ladspa_descriptor");
92 fprintf (stderr, "%s: error finding ladspa_descriptor symbol in object file '%s': %s\n",
93 __FUNCTION__, filename, dlerr);
99 while ( (descriptor = get_descriptor (plugin_index)) )
101 if (!plugin_is_valid (descriptor))
108 /* check it doesn't already exist */
110 for (list = plugin_mgr->all_plugins; list; list = g_slist_next (list))
112 other_desc = (plugin_desc_t *) list->data;
114 if (other_desc->id == descriptor->UniqueID)
123 printf ("Plugin %ld exists in both '%s' and '%s'; using version in '%s'\n",
124 descriptor->UniqueID, other_desc->object_file, filename, other_desc->object_file);
130 desc = plugin_desc_new_with_descriptor (filename, plugin_index, descriptor);
131 plugin_mgr->all_plugins = g_slist_append (plugin_mgr->all_plugins, desc);
133 plugin_mgr->plugin_count++;
135 /* print in the splash screen */
136 /* printf ("Loaded plugin '%s'\n", desc->name); */
139 err = dlclose (dl_handle);
142 fprintf (stderr, "%s: error closing object file '%s': %s\n",
143 __FUNCTION__, filename, dlerror ());
148 plugin_mgr_get_dir_plugins (plugin_mgr_t * plugin_mgr, const char * dir)
151 struct dirent * dir_entry;
156 dir_stream = opendir (dir);
159 /* fprintf (stderr, "%s: error opening directory '%s': %s\n",
160 __FUNCTION__, dir, strerror (errno)); */
164 dirlen = strlen (dir);
166 while ( (dir_entry = readdir (dir_stream)) )
168 if (strcmp (dir_entry->d_name, ".") == 0 ||
169 strcmp (dir_entry->d_name, "..") == 0)
172 file_name = g_malloc (dirlen + 1 + strlen (dir_entry->d_name) + 1);
174 strcpy (file_name, dir);
175 if (file_name[dirlen - 1] == '/')
176 strcpy (file_name + dirlen, dir_entry->d_name);
179 file_name[dirlen] = '/';
180 strcpy (file_name + dirlen + 1, dir_entry->d_name);
183 plugin_mgr_get_object_file_plugins (plugin_mgr, file_name);
188 err = closedir (dir_stream);
190 fprintf (stderr, "%s: error closing directory '%s': %s\n",
191 __FUNCTION__, dir, strerror (errno));
195 plugin_mgr_get_path_plugins (plugin_mgr_t * plugin_mgr)
197 char * ladspa_path, * dir;
199 ladspa_path = g_strdup (getenv ("LADSPA_PATH"));
201 ladspa_path = g_strdup ("/usr/local/lib/ladspa:/usr/lib/ladspa");
203 dir = strtok (ladspa_path, ":");
205 plugin_mgr_get_dir_plugins (plugin_mgr, dir);
206 while ((dir = strtok (NULL, ":")));
208 g_free (ladspa_path);
212 plugin_mgr_sort (gconstpointer a, gconstpointer b)
214 const plugin_desc_t * da;
215 const plugin_desc_t * db;
216 da = (const plugin_desc_t *) a;
217 db = (const plugin_desc_t *) b;
219 return strcasecmp (da->name, db->name);
227 pm = g_malloc (sizeof (plugin_mgr_t));
228 pm->all_plugins = NULL;
230 pm->plugin_count = 0;
232 plugin_mgr_get_path_plugins (pm);
234 if (!pm->all_plugins)
236 fprintf (stderr, "No LADSPA plugins were found!\n\nCheck your LADSPA_PATH environment variable.\n");
240 pm->all_plugins = g_slist_sort (pm->all_plugins, plugin_mgr_sort);
246 plugin_mgr_destroy (plugin_mgr_t * plugin_mgr)
250 for (list = plugin_mgr->all_plugins; list; list = g_slist_next (list))
251 plugin_desc_destroy ((plugin_desc_t *) list->data);
253 g_slist_free (plugin_mgr->plugins);
254 g_slist_free (plugin_mgr->all_plugins);
260 plugin_mgr_set_plugins (plugin_mgr_t * plugin_mgr, unsigned long rack_channels)
263 plugin_desc_t * desc;
265 /* clear the current plugins */
266 g_slist_free (plugin_mgr->plugins);
267 plugin_mgr->plugins = NULL;
269 for (list = plugin_mgr->all_plugins; list; list = g_slist_next (list))
271 desc = (plugin_desc_t *) list->data;
273 if (plugin_desc_get_copies (desc, rack_channels) != 0)
274 plugin_mgr->plugins = g_slist_append (plugin_mgr->plugins, desc);
278 static plugin_desc_t *
279 plugin_mgr_find_desc (plugin_mgr_t * plugin_mgr, GSList * plugins, unsigned long id)
282 plugin_desc_t * desc;
284 for (list = plugins; list; list = g_slist_next (list))
286 desc = (plugin_desc_t *) list->data;
296 plugin_mgr_get_desc (plugin_mgr_t * plugin_mgr, unsigned long id)
298 return plugin_mgr_find_desc (plugin_mgr, plugin_mgr->plugins, id);
302 plugin_mgr_get_any_desc (plugin_mgr_t * plugin_mgr, unsigned long id)
304 return plugin_mgr_find_desc (plugin_mgr, plugin_mgr->all_plugins, id);