5 * Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
7 * Modification for MLT:
8 * Copyright (C) 2004 Ushodaya Enterprises Limited
9 * Author: Dan Dennedy <dan@dennedy.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 #include "plugin_mgr.h"
39 #include "plugin_desc.h"
43 plugin_is_valid (const LADSPA_Descriptor * descriptor)
46 unsigned long icount = 0;
47 unsigned long ocount = 0;
49 for (i = 0; i < descriptor->PortCount; i++)
51 if (!LADSPA_IS_PORT_AUDIO (descriptor->PortDescriptors[i]))
54 if (LADSPA_IS_PORT_INPUT (descriptor->PortDescriptors[i]))
60 if (icount == 0 || ocount == 0)
67 plugin_mgr_get_object_file_plugins (plugin_mgr_t * plugin_mgr, const char * filename)
71 LADSPA_Descriptor_Function get_descriptor;
72 const LADSPA_Descriptor * descriptor;
73 unsigned long plugin_index;
74 plugin_desc_t * desc, * other_desc = NULL;
79 /* open the object file */
80 dl_handle = dlopen (filename, RTLD_NOW|RTLD_GLOBAL);
83 fprintf (stderr, "%s: error opening shared object file '%s': %s\n",
84 __FUNCTION__, filename, dlerror());
89 /* get the get_descriptor function */
90 dlerror (); /* clear the error report */
92 get_descriptor = (LADSPA_Descriptor_Function)
93 dlsym (dl_handle, "ladspa_descriptor");
97 fprintf (stderr, "%s: error finding ladspa_descriptor symbol in object file '%s': %s\n",
98 __FUNCTION__, filename, dlerr);
104 while ( (descriptor = get_descriptor (plugin_index)) )
106 if (!plugin_is_valid (descriptor))
113 /* check it doesn't already exist */
115 for (list = plugin_mgr->all_plugins; list; list = g_slist_next (list))
117 other_desc = (plugin_desc_t *) list->data;
119 if (other_desc->id == descriptor->UniqueID)
128 printf ("Plugin %ld exists in both '%s' and '%s'; using version in '%s'\n",
129 descriptor->UniqueID, other_desc->object_file, filename, other_desc->object_file);
135 desc = plugin_desc_new_with_descriptor (filename, plugin_index, descriptor);
136 plugin_mgr->all_plugins = g_slist_append (plugin_mgr->all_plugins, desc);
138 plugin_mgr->plugin_count++;
140 /* print in the splash screen */
141 /* printf ("Loaded plugin '%s'\n", desc->name); */
144 err = dlclose (dl_handle);
147 fprintf (stderr, "%s: error closing object file '%s': %s\n",
148 __FUNCTION__, filename, dlerror ());
153 plugin_mgr_get_dir_plugins (plugin_mgr_t * plugin_mgr, const char * dir)
156 struct dirent * dir_entry;
161 dir_stream = opendir (dir);
164 /* fprintf (stderr, "%s: error opening directory '%s': %s\n",
165 __FUNCTION__, dir, strerror (errno)); */
169 dirlen = strlen (dir);
171 while ( (dir_entry = readdir (dir_stream)) )
173 if (strcmp (dir_entry->d_name, ".") == 0 ||
174 strcmp (dir_entry->d_name, "..") == 0)
177 file_name = g_malloc (dirlen + 1 + strlen (dir_entry->d_name) + 1);
179 strcpy (file_name, dir);
180 if (file_name[dirlen - 1] == '/')
181 strcpy (file_name + dirlen, dir_entry->d_name);
184 file_name[dirlen] = '/';
185 strcpy (file_name + dirlen + 1, dir_entry->d_name);
188 plugin_mgr_get_object_file_plugins (plugin_mgr, file_name);
193 err = closedir (dir_stream);
195 fprintf (stderr, "%s: error closing directory '%s': %s\n",
196 __FUNCTION__, dir, strerror (errno));
200 plugin_mgr_get_path_plugins (plugin_mgr_t * plugin_mgr)
202 char * ladspa_path, * dir;
204 ladspa_path = g_strdup (getenv ("LADSPA_PATH"));
206 ladspa_path = g_strdup ("/usr/local/lib/ladspa:/usr/lib/ladspa");
208 dir = strtok (ladspa_path, ":");
210 plugin_mgr_get_dir_plugins (plugin_mgr, dir);
211 while ((dir = strtok (NULL, ":")));
213 g_free (ladspa_path);
217 plugin_mgr_sort (gconstpointer a, gconstpointer b)
219 const plugin_desc_t * da;
220 const plugin_desc_t * db;
221 da = (const plugin_desc_t *) a;
222 db = (const plugin_desc_t *) b;
224 return strcasecmp (da->name, db->name);
232 pm = g_malloc (sizeof (plugin_mgr_t));
233 pm->all_plugins = NULL;
235 pm->plugin_count = 0;
237 plugin_mgr_get_path_plugins (pm);
239 if (!pm->all_plugins)
241 fprintf (stderr, "No LADSPA plugins were found!\n\nCheck your LADSPA_PATH environment variable.\n");
245 pm->all_plugins = g_slist_sort (pm->all_plugins, plugin_mgr_sort);
251 plugin_mgr_destroy (plugin_mgr_t * plugin_mgr)
255 for (list = plugin_mgr->all_plugins; list; list = g_slist_next (list))
256 plugin_desc_destroy ((plugin_desc_t *) list->data);
258 g_slist_free (plugin_mgr->plugins);
259 g_slist_free (plugin_mgr->all_plugins);
265 plugin_mgr_set_plugins (plugin_mgr_t * plugin_mgr, unsigned long rack_channels)
268 plugin_desc_t * desc;
270 /* clear the current plugins */
271 g_slist_free (plugin_mgr->plugins);
272 plugin_mgr->plugins = NULL;
274 for (list = plugin_mgr->all_plugins; list; list = g_slist_next (list))
276 desc = (plugin_desc_t *) list->data;
278 if (plugin_desc_get_copies (desc, rack_channels) != 0)
279 plugin_mgr->plugins = g_slist_append (plugin_mgr->plugins, desc);
283 static plugin_desc_t *
284 plugin_mgr_find_desc (plugin_mgr_t * plugin_mgr, GSList * plugins, unsigned long id)
287 plugin_desc_t * desc;
289 for (list = plugins; list; list = g_slist_next (list))
291 desc = (plugin_desc_t *) list->data;
301 plugin_mgr_get_desc (plugin_mgr_t * plugin_mgr, unsigned long id)
303 return plugin_mgr_find_desc (plugin_mgr, plugin_mgr->plugins, id);
307 plugin_mgr_get_any_desc (plugin_mgr_t * plugin_mgr, unsigned long id)
309 return plugin_mgr_find_desc (plugin_mgr, plugin_mgr->all_plugins, id);