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.
30 #include "jack_rack.h"
34 #define CONTROL_FIFO_SIZE 128
38 /* swap over the jack ports in two plugins */
40 plugin_swap_aux_ports (plugin_t * plugin, plugin_t * other)
43 jack_port_t ** aux_ports_tmp;
45 for (copy = 0; copy < plugin->copies; copy++)
47 aux_ports_tmp = other->holders[copy].aux_ports;
48 other->holders[copy].aux_ports = plugin->holders[copy].aux_ports;
49 plugin->holders[copy].aux_ports = aux_ports_tmp;
53 /** connect up the ladspa instance's input buffers to the previous
54 plugin's audio memory. make sure to check that plugin->prev
57 plugin_connect_input_ports (plugin_t * plugin, LADSPA_Data ** inputs)
60 unsigned long channel;
61 unsigned long rack_channel;
63 if (!plugin || !inputs)
67 for (copy = 0; copy < plugin->copies; copy++)
69 for (channel = 0; channel < plugin->desc->channels; channel++)
72 connect_port (plugin->holders[copy].instance,
73 plugin->desc->audio_input_port_indicies[channel],
74 inputs[rack_channel]);
79 plugin->audio_input_memory = inputs;
82 /** connect up a plugin's output ports to its own audio_output_memory output memory */
84 plugin_connect_output_ports (plugin_t * plugin)
87 unsigned long channel;
88 unsigned long rack_channel = 0;
94 for (copy = 0; copy < plugin->copies; copy++)
96 for (channel = 0; channel < plugin->desc->channels; channel++)
99 connect_port (plugin->holders[copy].instance,
100 plugin->desc->audio_output_port_indicies[channel],
101 plugin->audio_output_memory[rack_channel]);
108 process_add_plugin (process_info_t * procinfo, plugin_t * plugin)
111 /* sort out list pointers */
113 plugin->prev = procinfo->chain_end;
115 if (procinfo->chain_end)
116 procinfo->chain_end->next = plugin;
118 procinfo->chain = plugin;
120 procinfo->chain_end = plugin;
125 /** remove a plugin from the chain */
127 process_remove_plugin (process_info_t * procinfo, plugin_t *plugin)
129 /* sort out chain pointers */
131 plugin->prev->next = plugin->next;
133 procinfo->chain = plugin->next;
136 plugin->next->prev = plugin->prev;
138 procinfo->chain_end = plugin->prev;
140 /* sort out the aux ports */
141 if (plugin->desc->aux_channels > 0)
145 for (other = plugin->next; other; other = other->next)
146 if (other->desc->id == plugin->desc->id)
147 plugin_swap_aux_ports (plugin, other);
153 /** enable/disable a plugin */
155 process_ablise_plugin (process_info_t * procinfo, plugin_t *plugin, gboolean enable)
157 plugin->enabled = enable;
160 /** enable/disable a plugin */
162 process_ablise_plugin_wet_dry (process_info_t * procinfo, plugin_t *plugin, gboolean enable)
164 plugin->wet_dry_enabled = enable;
167 /** move a plugin up or down one place in the chain */
169 process_move_plugin (process_info_t * procinfo, plugin_t *plugin, gint up)
171 /* other plugins in the chain */
172 plugin_t *pp = NULL, *p, *n, *nn = NULL;
174 /* note that we should never recieve an illogical move request
175 ie, there will always be at least 1 plugin before for an up
176 request or 1 plugin after for a down request */
178 /* these are pointers to the plugins surrounding the specified one:
179 { pp, p, plugin, n, nn } which makes things much clearer than
194 procinfo->chain = plugin;
205 procinfo->chain_end = p;
227 procinfo->chain_end = plugin;
230 if (plugin->desc->aux_channels > 0)
233 other = up ? plugin->next : plugin->prev;
235 /* swap around the jack ports */
236 if (other->desc->id == plugin->desc->id)
237 plugin_swap_aux_ports (plugin, other);
241 /** exchange an existing plugin for a newly created one */
243 process_change_plugin (process_info_t * procinfo,
244 plugin_t *plugin, plugin_t * new_plugin)
246 new_plugin->next = plugin->next;
247 new_plugin->prev = plugin->prev;
250 plugin->prev->next = new_plugin;
252 procinfo->chain = new_plugin;
255 plugin->next->prev = new_plugin;
257 procinfo->chain_end = new_plugin;
259 /* sort out the aux ports */
260 if (plugin->desc->aux_channels > 0)
264 for (other = plugin->next; other; other = other->next)
265 if (other->desc->id == plugin->desc->id)
266 plugin_swap_aux_ports (plugin, other);
273 /******************************************
274 ************* non RT stuff ***************
275 ******************************************/
279 plugin_open_plugin (plugin_desc_t * desc,
280 void ** dl_handle_ptr,
281 const LADSPA_Descriptor ** descriptor_ptr)
285 LADSPA_Descriptor_Function get_descriptor;
287 /* open the object file */
288 dl_handle = dlopen (desc->object_file, RTLD_NOW|RTLD_GLOBAL);
291 fprintf (stderr, "%s: error opening shared object file '%s': %s\n",
292 __FUNCTION__, desc->object_file, dlerror());
297 /* get the get_descriptor function */
298 dlerror (); /* clear the error report */
300 get_descriptor = (LADSPA_Descriptor_Function)
301 dlsym (dl_handle, "ladspa_descriptor");
306 fprintf (stderr, "%s: error finding descriptor symbol in object file '%s': %s\n",
307 __FUNCTION__, desc->object_file, dlerr);
312 *descriptor_ptr = get_descriptor (desc->index);
313 *dl_handle_ptr = dl_handle;
319 plugin_instantiate (const LADSPA_Descriptor * descriptor,
320 unsigned long plugin_index,
322 LADSPA_Handle * instances)
326 for (i = 0; i < copies; i++)
328 instances[i] = descriptor->instantiate (descriptor, sample_rate);
334 for (d = 0; d < i; d++)
335 descriptor->cleanup (instances[d]);
345 plugin_create_aux_ports (plugin_t * plugin, guint copy, jack_rack_t * jack_rack)
347 plugin_desc_t * desc;
348 // plugin_slot_t * slot;
349 unsigned long aux_channel = 1;
350 unsigned long plugin_index = 1;
356 ladspa_holder_t * holder;
359 holder = plugin->holders + copy;
361 holder->aux_ports = g_malloc (sizeof (jack_port_t *) * desc->aux_channels);
363 /* make the plugin name jack worthy */
364 ptr = plugin_name = g_strndup (plugin->desc->name, 7);
370 *ptr = tolower (*ptr);
376 for (list = jack_rack->slots; list; list = g_list_next (list))
378 slot = (plugin_slot_t *) list->data;
380 if (slot->plugin->desc->id == plugin->desc->id)
385 for (i = 0; i < desc->aux_channels; i++, aux_channel++)
387 sprintf (port_name, "%s_%ld-%d_%c%ld",
391 desc->aux_are_input ? 'i' : 'o',
394 holder->aux_ports[i] =
395 jack_port_register (jack_rack->ui->procinfo->jack_client,
397 JACK_DEFAULT_AUDIO_TYPE,
398 desc->aux_are_input ? JackPortIsInput : JackPortIsOutput,
401 if (!holder->aux_ports[i])
403 fprintf (stderr, "Could not register jack port '%s'; aborting\n", port_name);
408 g_free (plugin_name);
411 static LADSPA_Data unused_control_port_output;
414 plugin_init_holder (plugin_t * plugin,
416 LADSPA_Handle instance,
417 jack_rack_t * jack_rack)
420 plugin_desc_t * desc;
421 ladspa_holder_t * holder;
424 holder = plugin->holders + copy;
426 holder->instance = instance;
428 if (desc->control_port_count > 0)
430 holder->ui_control_fifos = g_malloc (sizeof (lff_t) * desc->control_port_count);
431 holder->control_memory = g_malloc (sizeof (LADSPA_Data) * desc->control_port_count);
435 holder->ui_control_fifos = NULL;
436 holder->control_memory = NULL;
439 for (i = 0; i < desc->control_port_count; i++)
441 lff_init (holder->ui_control_fifos + i, CONTROL_FIFO_SIZE, sizeof (LADSPA_Data));
442 holder->control_memory[i] =
443 plugin_desc_get_default_control_value (desc, desc->control_port_indicies[i], sample_rate);
446 connect_port (instance, desc->control_port_indicies[i], holder->control_memory + i);
449 for (i = 0; i < desc->port_count; i++)
451 if (!LADSPA_IS_PORT_CONTROL (desc->port_descriptors[i]))
454 if (LADSPA_IS_PORT_OUTPUT (desc->port_descriptors[i]))
455 plugin->descriptor-> connect_port (instance, i, &unused_control_port_output);
458 if (plugin->desc->aux_channels > 0)
459 plugin_create_aux_ports (plugin, copy, jack_rack);
461 if (plugin->descriptor->activate)
462 plugin->descriptor->activate (instance);
467 plugin_new (plugin_desc_t * desc, jack_rack_t * jack_rack)
470 const LADSPA_Descriptor * descriptor;
471 LADSPA_Handle * instances;
477 /* open the plugin */
478 err = plugin_open_plugin (desc, &dl_handle, &descriptor);
482 /* create the instances */
483 copies = plugin_desc_get_copies (desc, jack_rack->channels);
484 instances = g_malloc (sizeof (LADSPA_Handle) * copies);
486 err = plugin_instantiate (descriptor, desc->index, copies, instances);
495 plugin = g_malloc (sizeof (plugin_t));
497 plugin->descriptor = descriptor;
498 plugin->dl_handle = dl_handle;
500 plugin->copies = copies;
501 plugin->enabled = FALSE;
504 plugin->wet_dry_enabled = FALSE;
506 /* create audio memory and wet/dry stuff */
507 plugin->audio_output_memory = g_malloc (sizeof (LADSPA_Data *) * jack_rack->channels);
508 plugin->wet_dry_fifos = g_malloc (sizeof (lff_t) * jack_rack->channels);
509 plugin->wet_dry_values = g_malloc (sizeof (LADSPA_Data) * jack_rack->channels);
511 for (i = 0; i < jack_rack->channels; i++)
513 plugin->audio_output_memory[i] = g_malloc (sizeof (LADSPA_Data) * buffer_size);
514 lff_init (plugin->wet_dry_fifos + i, CONTROL_FIFO_SIZE, sizeof (LADSPA_Data));
515 plugin->wet_dry_values[i] = 1.0;
518 /* create holders and fill them out */
519 plugin->holders = g_malloc (sizeof (ladspa_holder_t) * copies);
520 for (i = 0; i < copies; i++)
521 plugin_init_holder (plugin, i, instances[i], jack_rack);
528 plugin_destroy (plugin_t * plugin, ui_t *ui)
533 /* destroy holders */
534 for (i = 0; i < plugin->copies; i++)
536 if (plugin->descriptor->deactivate)
537 plugin->descriptor->deactivate (plugin->holders[i].instance);
539 /* if (plugin->descriptor->cleanup)
540 plugin->descriptor->cleanup (plugin->holders[i].instance); */
542 if (plugin->desc->control_port_count > 0)
544 for (j = 0; j < plugin->desc->control_port_count; j++)
546 lff_free (plugin->holders[i].ui_control_fifos + j);
548 g_free (plugin->holders[i].ui_control_fifos);
549 g_free (plugin->holders[i].control_memory);
553 if (plugin->desc->aux_channels > 0)
555 for (j = 0; j < plugin->desc->aux_channels; j++)
557 err = jack_port_unregister (ui->procinfo->jack_client,
558 plugin->holders[i].aux_ports[j]);
561 fprintf (stderr, "%s: could not unregister jack port\n", __FUNCTION__);
564 g_free (plugin->holders[i].aux_ports);
568 g_free (plugin->holders);
570 for (i = 0; i < ui->jack_rack->channels; i++)
572 g_free (plugin->audio_output_memory[i]);
573 lff_free (plugin->wet_dry_fifos + i);
576 g_free (plugin->audio_output_memory);
577 g_free (plugin->wet_dry_fifos);
578 g_free (plugin->wet_dry_values);
580 err = dlclose (plugin->dl_handle);
583 fprintf (stderr, "%s: error closing shared object '%s': %s\n",
584 __FUNCTION__, plugin->desc->object_file, dlerror ());