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.
35 #include "jack_rack.h"
38 #define CONTROL_FIFO_SIZE 128
42 /* swap over the jack ports in two plugins */
44 plugin_swap_aux_ports (plugin_t * plugin, plugin_t * other)
47 jack_port_t ** aux_ports_tmp;
49 for (copy = 0; copy < plugin->copies; copy++)
51 aux_ports_tmp = other->holders[copy].aux_ports;
52 other->holders[copy].aux_ports = plugin->holders[copy].aux_ports;
53 plugin->holders[copy].aux_ports = aux_ports_tmp;
57 /** connect up the ladspa instance's input buffers to the previous
58 plugin's audio memory. make sure to check that plugin->prev
61 plugin_connect_input_ports (plugin_t * plugin, LADSPA_Data ** inputs)
64 unsigned long channel;
65 unsigned long rack_channel;
67 if (!plugin || !inputs)
71 for (copy = 0; copy < plugin->copies; copy++)
73 for (channel = 0; channel < plugin->desc->channels; channel++)
76 connect_port (plugin->holders[copy].instance,
77 plugin->desc->audio_input_port_indicies[channel],
78 inputs[rack_channel]);
83 plugin->audio_input_memory = inputs;
86 /** connect up a plugin's output ports to its own audio_output_memory output memory */
88 plugin_connect_output_ports (plugin_t * plugin)
91 unsigned long channel;
92 unsigned long rack_channel = 0;
98 for (copy = 0; copy < plugin->copies; copy++)
100 for (channel = 0; channel < plugin->desc->channels; channel++)
103 connect_port (plugin->holders[copy].instance,
104 plugin->desc->audio_output_port_indicies[channel],
105 plugin->audio_output_memory[rack_channel]);
112 process_add_plugin (process_info_t * procinfo, plugin_t * plugin)
115 /* sort out list pointers */
117 plugin->prev = procinfo->chain_end;
119 if (procinfo->chain_end)
120 procinfo->chain_end->next = plugin;
122 procinfo->chain = plugin;
124 procinfo->chain_end = plugin;
129 /** remove a plugin from the chain */
131 process_remove_plugin (process_info_t * procinfo, plugin_t *plugin)
133 /* sort out chain pointers */
135 plugin->prev->next = plugin->next;
137 procinfo->chain = plugin->next;
140 plugin->next->prev = plugin->prev;
142 procinfo->chain_end = plugin->prev;
144 /* sort out the aux ports */
145 if (procinfo->jack_client && plugin->desc->aux_channels > 0)
149 for (other = plugin->next; other; other = other->next)
150 if (other->desc->id == plugin->desc->id)
151 plugin_swap_aux_ports (plugin, other);
157 /** enable/disable a plugin */
159 process_ablise_plugin (process_info_t * procinfo, plugin_t *plugin, gboolean enable)
161 plugin->enabled = enable;
164 /** enable/disable a plugin */
166 process_ablise_plugin_wet_dry (process_info_t * procinfo, plugin_t *plugin, gboolean enable)
168 plugin->wet_dry_enabled = enable;
171 /** move a plugin up or down one place in the chain */
173 process_move_plugin (process_info_t * procinfo, plugin_t *plugin, gint up)
175 /* other plugins in the chain */
176 plugin_t *pp = NULL, *p, *n, *nn = NULL;
178 /* note that we should never recieve an illogical move request
179 ie, there will always be at least 1 plugin before for an up
180 request or 1 plugin after for a down request */
182 /* these are pointers to the plugins surrounding the specified one:
183 { pp, p, plugin, n, nn } which makes things much clearer than
198 procinfo->chain = plugin;
209 procinfo->chain_end = p;
231 procinfo->chain_end = plugin;
234 if (procinfo->jack_client && plugin->desc->aux_channels > 0)
237 other = up ? plugin->next : plugin->prev;
239 /* swap around the jack ports */
240 if (other->desc->id == plugin->desc->id)
241 plugin_swap_aux_ports (plugin, other);
245 /** exchange an existing plugin for a newly created one */
247 process_change_plugin (process_info_t * procinfo,
248 plugin_t *plugin, plugin_t * new_plugin)
250 new_plugin->next = plugin->next;
251 new_plugin->prev = plugin->prev;
254 plugin->prev->next = new_plugin;
256 procinfo->chain = new_plugin;
259 plugin->next->prev = new_plugin;
261 procinfo->chain_end = new_plugin;
263 /* sort out the aux ports */
264 if (procinfo->jack_client && plugin->desc->aux_channels > 0)
268 for (other = plugin->next; other; other = other->next)
269 if (other->desc->id == plugin->desc->id)
270 plugin_swap_aux_ports (plugin, other);
277 /******************************************
278 ************* non RT stuff ***************
279 ******************************************/
283 plugin_open_plugin (plugin_desc_t * desc,
284 void ** dl_handle_ptr,
285 const LADSPA_Descriptor ** descriptor_ptr)
289 LADSPA_Descriptor_Function get_descriptor;
291 /* open the object file */
292 dl_handle = dlopen (desc->object_file, RTLD_NOW|RTLD_GLOBAL);
295 fprintf (stderr, "%s: error opening shared object file '%s': %s\n",
296 __FUNCTION__, desc->object_file, dlerror());
301 /* get the get_descriptor function */
302 dlerror (); /* clear the error report */
304 get_descriptor = (LADSPA_Descriptor_Function)
305 dlsym (dl_handle, "ladspa_descriptor");
310 fprintf (stderr, "%s: error finding descriptor symbol in object file '%s': %s\n",
311 __FUNCTION__, desc->object_file, dlerr);
316 *descriptor_ptr = get_descriptor (desc->index);
317 *dl_handle_ptr = dl_handle;
323 plugin_instantiate (const LADSPA_Descriptor * descriptor,
324 unsigned long plugin_index,
326 LADSPA_Handle * instances)
330 for (i = 0; i < copies; i++)
332 instances[i] = descriptor->instantiate (descriptor, sample_rate);
338 for (d = 0; d < i; d++)
339 descriptor->cleanup (instances[d]);
349 plugin_create_aux_ports (plugin_t * plugin, guint copy, jack_rack_t * jack_rack)
351 plugin_desc_t * desc;
352 // plugin_slot_t * slot;
353 unsigned long aux_channel = 1;
354 unsigned long plugin_index = 1;
360 ladspa_holder_t * holder;
363 holder = plugin->holders + copy;
365 holder->aux_ports = g_malloc (sizeof (jack_port_t *) * desc->aux_channels);
367 /* make the plugin name jack worthy */
368 ptr = plugin_name = g_strndup (plugin->desc->name, 7);
374 *ptr = tolower (*ptr);
380 for (list = jack_rack->slots; list; list = g_list_next (list))
382 slot = (plugin_slot_t *) list->data;
384 if (slot->plugin->desc->id == plugin->desc->id)
389 for (i = 0; i < desc->aux_channels; i++, aux_channel++)
391 sprintf (port_name, "%s_%ld-%d_%c%ld",
395 desc->aux_are_input ? 'i' : 'o',
398 holder->aux_ports[i] =
399 jack_port_register (jack_rack->procinfo->jack_client,
401 JACK_DEFAULT_AUDIO_TYPE,
402 desc->aux_are_input ? JackPortIsInput : JackPortIsOutput,
405 if (!holder->aux_ports[i])
407 fprintf (stderr, "Could not register jack port '%s'; aborting\n", port_name);
412 g_free (plugin_name);
415 static LADSPA_Data unused_control_port_output;
418 plugin_init_holder (plugin_t * plugin,
420 LADSPA_Handle instance,
421 jack_rack_t * jack_rack)
424 plugin_desc_t * desc;
425 ladspa_holder_t * holder;
428 holder = plugin->holders + copy;
430 holder->instance = instance;
432 if (desc->control_port_count > 0)
434 holder->ui_control_fifos = g_malloc (sizeof (lff_t) * desc->control_port_count);
435 holder->control_memory = g_malloc (sizeof (LADSPA_Data) * desc->control_port_count);
439 holder->ui_control_fifos = NULL;
440 holder->control_memory = NULL;
443 for (i = 0; i < desc->control_port_count; i++)
445 lff_init (holder->ui_control_fifos + i, CONTROL_FIFO_SIZE, sizeof (LADSPA_Data));
446 holder->control_memory[i] =
447 plugin_desc_get_default_control_value (desc, desc->control_port_indicies[i], sample_rate);
450 connect_port (instance, desc->control_port_indicies[i], holder->control_memory + i);
453 for (i = 0; i < desc->port_count; i++)
455 if (!LADSPA_IS_PORT_CONTROL (desc->port_descriptors[i]))
458 if (LADSPA_IS_PORT_OUTPUT (desc->port_descriptors[i]))
459 plugin->descriptor-> connect_port (instance, i, &unused_control_port_output);
462 if (jack_rack->procinfo->jack_client && plugin->desc->aux_channels > 0)
463 plugin_create_aux_ports (plugin, copy, jack_rack);
465 if (plugin->descriptor->activate)
466 plugin->descriptor->activate (instance);
471 plugin_new (plugin_desc_t * desc, jack_rack_t * jack_rack)
474 const LADSPA_Descriptor * descriptor;
475 LADSPA_Handle * instances;
481 /* open the plugin */
482 err = plugin_open_plugin (desc, &dl_handle, &descriptor);
486 /* create the instances */
487 copies = plugin_desc_get_copies (desc, jack_rack->channels);
488 instances = g_malloc (sizeof (LADSPA_Handle) * copies);
490 err = plugin_instantiate (descriptor, desc->index, copies, instances);
499 plugin = g_malloc (sizeof (plugin_t));
501 plugin->descriptor = descriptor;
502 plugin->dl_handle = dl_handle;
504 plugin->copies = copies;
505 plugin->enabled = FALSE;
508 plugin->wet_dry_enabled = FALSE;
509 plugin->jack_rack = jack_rack;
511 /* create audio memory and wet/dry stuff */
512 plugin->audio_output_memory = g_malloc (sizeof (LADSPA_Data *) * jack_rack->channels);
513 plugin->wet_dry_fifos = g_malloc (sizeof (lff_t) * jack_rack->channels);
514 plugin->wet_dry_values = g_malloc (sizeof (LADSPA_Data) * jack_rack->channels);
516 for (i = 0; i < jack_rack->channels; i++)
518 plugin->audio_output_memory[i] = g_malloc (sizeof (LADSPA_Data) * buffer_size);
519 lff_init (plugin->wet_dry_fifos + i, CONTROL_FIFO_SIZE, sizeof (LADSPA_Data));
520 plugin->wet_dry_values[i] = 1.0;
523 /* create holders and fill them out */
524 plugin->holders = g_malloc (sizeof (ladspa_holder_t) * copies);
525 for (i = 0; i < copies; i++)
526 plugin_init_holder (plugin, i, instances[i], jack_rack);
533 plugin_destroy (plugin_t * plugin)
538 /* destroy holders */
539 for (i = 0; i < plugin->copies; i++)
541 if (plugin->descriptor->deactivate)
542 plugin->descriptor->deactivate (plugin->holders[i].instance);
544 /* if (plugin->descriptor->cleanup)
545 plugin->descriptor->cleanup (plugin->holders[i].instance); */
547 if (plugin->desc->control_port_count > 0)
549 for (j = 0; j < plugin->desc->control_port_count; j++)
551 lff_free (plugin->holders[i].ui_control_fifos + j);
553 g_free (plugin->holders[i].ui_control_fifos);
554 g_free (plugin->holders[i].control_memory);
558 if (plugin->jack_rack->procinfo->jack_client && plugin->desc->aux_channels > 0)
560 for (j = 0; j < plugin->desc->aux_channels; j++)
562 err = jack_port_unregister (plugin->jack_rack->procinfo->jack_client,
563 plugin->holders[i].aux_ports[j]);
566 fprintf (stderr, "%s: could not unregister jack port\n", __FUNCTION__);
569 g_free (plugin->holders[i].aux_ports);
573 g_free (plugin->holders);
575 for (i = 0; i < plugin->jack_rack->channels; i++)
577 g_free (plugin->audio_output_memory[i]);
578 lff_free (plugin->wet_dry_fifos + i);
581 g_free (plugin->audio_output_memory);
582 g_free (plugin->wet_dry_fifos);
583 g_free (plugin->wet_dry_values);
585 err = dlclose (plugin->dl_handle);
588 fprintf (stderr, "%s: error closing shared object '%s': %s\n",
589 __FUNCTION__, plugin->desc->object_file, dlerror ());