+++ /dev/null
-/*
- * JACK Rack
- *
- * Original:
- * Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
- *
- * Modification for MLT:
- * Copyright (C) 2004 Ushodaya Enterprises Limited
- * Author: Dan Dennedy <dan@dennedy.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <ladspa.h>
-#include <dlfcn.h>
-#include <ctype.h>
-
-#include <glib.h>
-
-#include "plugin.h"
-#include "jack_rack.h"
-#include "process.h"
-
-#define CONTROL_FIFO_SIZE 128
-
-
-
-/* swap over the jack ports in two plugins */
-static void
-plugin_swap_aux_ports (plugin_t * plugin, plugin_t * other)
-{
- guint copy;
- jack_port_t ** aux_ports_tmp;
-
- for (copy = 0; copy < plugin->copies; copy++)
- {
- aux_ports_tmp = other->holders[copy].aux_ports;
- other->holders[copy].aux_ports = plugin->holders[copy].aux_ports;
- plugin->holders[copy].aux_ports = aux_ports_tmp;
- }
-}
-
-/** connect up the ladspa instance's input buffers to the previous
- plugin's audio memory. make sure to check that plugin->prev
- exists. */
-void
-plugin_connect_input_ports (plugin_t * plugin, LADSPA_Data ** inputs)
-{
- gint copy;
- unsigned long channel;
- unsigned long rack_channel;
-
- if (!plugin || !inputs)
- return;
-
- rack_channel = 0;
- for (copy = 0; copy < plugin->copies; copy++)
- {
- for (channel = 0; channel < plugin->desc->channels; channel++)
- {
- plugin->descriptor->
- connect_port (plugin->holders[copy].instance,
- plugin->desc->audio_input_port_indicies[channel],
- inputs[rack_channel]);
- rack_channel++;
- }
- }
-
- plugin->audio_input_memory = inputs;
-}
-
-/** connect up a plugin's output ports to its own audio_output_memory output memory */
-void
-plugin_connect_output_ports (plugin_t * plugin)
-{
- gint copy;
- unsigned long channel;
- unsigned long rack_channel = 0;
-
- if (!plugin)
- return;
-
-
- for (copy = 0; copy < plugin->copies; copy++)
- {
- for (channel = 0; channel < plugin->desc->channels; channel++)
- {
- plugin->descriptor->
- connect_port (plugin->holders[copy].instance,
- plugin->desc->audio_output_port_indicies[channel],
- plugin->audio_output_memory[rack_channel]);
- rack_channel++;
- }
- }
-}
-
-void
-process_add_plugin (process_info_t * procinfo, plugin_t * plugin)
-{
-
- /* sort out list pointers */
- plugin->next = NULL;
- plugin->prev = procinfo->chain_end;
-
- if (procinfo->chain_end)
- procinfo->chain_end->next = plugin;
- else
- procinfo->chain = plugin;
-
- procinfo->chain_end = plugin;
-
-}
-
-
-/** remove a plugin from the chain */
-plugin_t *
-process_remove_plugin (process_info_t * procinfo, plugin_t *plugin)
-{
- /* sort out chain pointers */
- if (plugin->prev)
- plugin->prev->next = plugin->next;
- else
- procinfo->chain = plugin->next;
-
- if (plugin->next)
- plugin->next->prev = plugin->prev;
- else
- procinfo->chain_end = plugin->prev;
-
- /* sort out the aux ports */
- if (procinfo->jack_client && plugin->desc->aux_channels > 0)
- {
- plugin_t * other;
-
- for (other = plugin->next; other; other = other->next)
- if (other->desc->id == plugin->desc->id)
- plugin_swap_aux_ports (plugin, other);
- }
-
- return plugin;
-}
-
-/** enable/disable a plugin */
-void
-process_ablise_plugin (process_info_t * procinfo, plugin_t *plugin, gboolean enable)
-{
- plugin->enabled = enable;
-}
-
-/** enable/disable a plugin */
-void
-process_ablise_plugin_wet_dry (process_info_t * procinfo, plugin_t *plugin, gboolean enable)
-{
- plugin->wet_dry_enabled = enable;
-}
-
-/** move a plugin up or down one place in the chain */
-void
-process_move_plugin (process_info_t * procinfo, plugin_t *plugin, gint up)
-{
- /* other plugins in the chain */
- plugin_t *pp = NULL, *p, *n, *nn = NULL;
-
- /* note that we should never recieve an illogical move request
- ie, there will always be at least 1 plugin before for an up
- request or 1 plugin after for a down request */
-
- /* these are pointers to the plugins surrounding the specified one:
- { pp, p, plugin, n, nn } which makes things much clearer than
- tptr, tptr2 etc */
- p = plugin->prev;
- if (p) pp = p->prev;
- n = plugin->next;
- if (n) nn = n->next;
-
- if (up)
- {
- if (!p)
- return;
-
- if (pp)
- pp->next = plugin;
- else
- procinfo->chain = plugin;
-
- p->next = n;
- p->prev = plugin;
-
- plugin->prev = pp;
- plugin->next = p;
-
- if (n)
- n->prev = p;
- else
- procinfo->chain_end = p;
-
- }
- else
- {
- if (!n)
- return;
-
- if (p)
- p->next = n;
- else
- procinfo->chain = n;
-
- n->prev = p;
- n->next = plugin;
-
- plugin->prev = n;
- plugin->next = nn;
-
- if (nn)
- nn->prev = plugin;
- else
- procinfo->chain_end = plugin;
- }
-
- if (procinfo->jack_client && plugin->desc->aux_channels > 0)
- {
- plugin_t * other;
- other = up ? plugin->next : plugin->prev;
-
- /* swap around the jack ports */
- if (other->desc->id == plugin->desc->id)
- plugin_swap_aux_ports (plugin, other);
- }
-}
-
-/** exchange an existing plugin for a newly created one */
-plugin_t *
-process_change_plugin (process_info_t * procinfo,
- plugin_t *plugin, plugin_t * new_plugin)
-{
- new_plugin->next = plugin->next;
- new_plugin->prev = plugin->prev;
-
- if (plugin->prev)
- plugin->prev->next = new_plugin;
- else
- procinfo->chain = new_plugin;
-
- if (plugin->next)
- plugin->next->prev = new_plugin;
- else
- procinfo->chain_end = new_plugin;
-
- /* sort out the aux ports */
- if (procinfo->jack_client && plugin->desc->aux_channels > 0)
- {
- plugin_t * other;
-
- for (other = plugin->next; other; other = other->next)
- if (other->desc->id == plugin->desc->id)
- plugin_swap_aux_ports (plugin, other);
- }
-
- return plugin;
-}
-
-
-/******************************************
- ************* non RT stuff ***************
- ******************************************/
-
-
-static int
-plugin_open_plugin (plugin_desc_t * desc,
- void ** dl_handle_ptr,
- const LADSPA_Descriptor ** descriptor_ptr)
-{
- void * dl_handle;
- const char * dlerr;
- LADSPA_Descriptor_Function get_descriptor;
-
- /* open the object file */
- dl_handle = dlopen (desc->object_file, RTLD_NOW|RTLD_GLOBAL);
- if (!dl_handle)
- {
- fprintf (stderr, "%s: error opening shared object file '%s': %s\n",
- __FUNCTION__, desc->object_file, dlerror());
- return 1;
- }
-
-
- /* get the get_descriptor function */
- dlerror (); /* clear the error report */
-
- get_descriptor = (LADSPA_Descriptor_Function)
- dlsym (dl_handle, "ladspa_descriptor");
-
- dlerr = dlerror();
- if (dlerr)
- {
- fprintf (stderr, "%s: error finding descriptor symbol in object file '%s': %s\n",
- __FUNCTION__, desc->object_file, dlerr);
- dlclose (dl_handle);
- return 1;
- }
-
- *descriptor_ptr = get_descriptor (desc->index);
- *dl_handle_ptr = dl_handle;
-
- return 0;
-}
-
-static int
-plugin_instantiate (const LADSPA_Descriptor * descriptor,
- unsigned long plugin_index,
- gint copies,
- LADSPA_Handle * instances)
-{
- gint i;
-
- for (i = 0; i < copies; i++)
- {
- instances[i] = descriptor->instantiate (descriptor, sample_rate);
-
- if (!instances[i])
- {
- unsigned long d;
-
- for (d = 0; d < i; d++)
- descriptor->cleanup (instances[d]);
-
- return 1;
- }
- }
-
- return 0;
-}
-
-static void
-plugin_create_aux_ports (plugin_t * plugin, guint copy, jack_rack_t * jack_rack)
-{
- plugin_desc_t * desc;
-// plugin_slot_t * slot;
- unsigned long aux_channel = 1;
- unsigned long plugin_index = 1;
- unsigned long i;
- char port_name[64];
- char * plugin_name;
- char * ptr;
-// GList * list;
- ladspa_holder_t * holder;
-
- desc = plugin->desc;
- holder = plugin->holders + copy;
-
- holder->aux_ports = g_malloc (sizeof (jack_port_t *) * desc->aux_channels);
-
- /* make the plugin name jack worthy */
- ptr = plugin_name = g_strndup (plugin->desc->name, 7);
- while (*ptr != '\0')
- {
- if (*ptr == ' ')
- *ptr = '_';
- else
- *ptr = tolower (*ptr);
-
- ptr++;
- }
-
-/*
- for (list = jack_rack->slots; list; list = g_list_next (list))
- {
- slot = (plugin_slot_t *) list->data;
-
- if (slot->plugin->desc->id == plugin->desc->id)
- plugin_index++;
- }
-*/
-
- for (i = 0; i < desc->aux_channels; i++, aux_channel++)
- {
- sprintf (port_name, "%s_%ld-%d_%c%ld",
- plugin_name,
- plugin_index,
- copy + 1,
- desc->aux_are_input ? 'i' : 'o',
- aux_channel);
-
- holder->aux_ports[i] =
- jack_port_register (jack_rack->procinfo->jack_client,
- port_name,
- JACK_DEFAULT_AUDIO_TYPE,
- desc->aux_are_input ? JackPortIsInput : JackPortIsOutput,
- 0);
-
- if (!holder->aux_ports[i])
- {
- fprintf (stderr, "Could not register jack port '%s'; aborting\n", port_name);
- abort ();
- }
- }
-
- g_free (plugin_name);
-}
-
-static LADSPA_Data unused_control_port_output;
-
-static void
-plugin_init_holder (plugin_t * plugin,
- guint copy,
- LADSPA_Handle instance,
- jack_rack_t * jack_rack)
-{
- unsigned long i;
- plugin_desc_t * desc;
- ladspa_holder_t * holder;
-
- desc = plugin->desc;
- holder = plugin->holders + copy;
-
- holder->instance = instance;
-
- if (desc->control_port_count > 0)
- {
- holder->ui_control_fifos = g_malloc (sizeof (lff_t) * desc->control_port_count);
- holder->control_memory = g_malloc (sizeof (LADSPA_Data) * desc->control_port_count);
- }
- else
- {
- holder->ui_control_fifos = NULL;
- holder->control_memory = NULL;
- }
-
- for (i = 0; i < desc->control_port_count; i++)
- {
- lff_init (holder->ui_control_fifos + i, CONTROL_FIFO_SIZE, sizeof (LADSPA_Data));
- holder->control_memory[i] =
- plugin_desc_get_default_control_value (desc, desc->control_port_indicies[i], sample_rate);
-
- plugin->descriptor->
- connect_port (instance, desc->control_port_indicies[i], holder->control_memory + i);
- }
-
- for (i = 0; i < desc->port_count; i++)
- {
- if (!LADSPA_IS_PORT_CONTROL (desc->port_descriptors[i]))
- continue;
-
- if (LADSPA_IS_PORT_OUTPUT (desc->port_descriptors[i]))
- plugin->descriptor-> connect_port (instance, i, &unused_control_port_output);
- }
-
- if (jack_rack->procinfo->jack_client && plugin->desc->aux_channels > 0)
- plugin_create_aux_ports (plugin, copy, jack_rack);
-
- if (plugin->descriptor->activate)
- plugin->descriptor->activate (instance);
-}
-
-
-plugin_t *
-plugin_new (plugin_desc_t * desc, jack_rack_t * jack_rack)
-{
- void * dl_handle;
- const LADSPA_Descriptor * descriptor;
- LADSPA_Handle * instances;
- gint copies;
- unsigned long i;
- int err;
- plugin_t * plugin;
-
- /* open the plugin */
- err = plugin_open_plugin (desc, &dl_handle, &descriptor);
- if (err)
- return NULL;
-
- /* create the instances */
- copies = plugin_desc_get_copies (desc, jack_rack->channels);
- instances = g_malloc (sizeof (LADSPA_Handle) * copies);
-
- err = plugin_instantiate (descriptor, desc->index, copies, instances);
- if (err)
- {
- g_free (instances);
- dlclose (dl_handle);
- return NULL;
- }
-
-
- plugin = g_malloc (sizeof (plugin_t));
-
- plugin->descriptor = descriptor;
- plugin->dl_handle = dl_handle;
- plugin->desc = desc;
- plugin->copies = copies;
- plugin->enabled = FALSE;
- plugin->next = NULL;
- plugin->prev = NULL;
- plugin->wet_dry_enabled = FALSE;
- plugin->jack_rack = jack_rack;
-
- /* create audio memory and wet/dry stuff */
- plugin->audio_output_memory = g_malloc (sizeof (LADSPA_Data *) * jack_rack->channels);
- plugin->wet_dry_fifos = g_malloc (sizeof (lff_t) * jack_rack->channels);
- plugin->wet_dry_values = g_malloc (sizeof (LADSPA_Data) * jack_rack->channels);
-
- for (i = 0; i < jack_rack->channels; i++)
- {
- plugin->audio_output_memory[i] = g_malloc (sizeof (LADSPA_Data) * buffer_size);
- lff_init (plugin->wet_dry_fifos + i, CONTROL_FIFO_SIZE, sizeof (LADSPA_Data));
- plugin->wet_dry_values[i] = 1.0;
- }
-
- /* create holders and fill them out */
- plugin->holders = g_malloc (sizeof (ladspa_holder_t) * copies);
- for (i = 0; i < copies; i++)
- plugin_init_holder (plugin, i, instances[i], jack_rack);
-
- return plugin;
-}
-
-
-void
-plugin_destroy (plugin_t * plugin)
-{
- unsigned long i, j;
- int err;
-
- /* destroy holders */
- for (i = 0; i < plugin->copies; i++)
- {
- if (plugin->descriptor->deactivate)
- plugin->descriptor->deactivate (plugin->holders[i].instance);
-
-/* if (plugin->descriptor->cleanup)
- plugin->descriptor->cleanup (plugin->holders[i].instance); */
-
- if (plugin->desc->control_port_count > 0)
- {
- for (j = 0; j < plugin->desc->control_port_count; j++)
- {
- lff_free (plugin->holders[i].ui_control_fifos + j);
- }
- g_free (plugin->holders[i].ui_control_fifos);
- g_free (plugin->holders[i].control_memory);
- }
-
- /* aux ports */
- if (plugin->jack_rack->procinfo->jack_client && plugin->desc->aux_channels > 0)
- {
- for (j = 0; j < plugin->desc->aux_channels; j++)
- {
- err = jack_port_unregister (plugin->jack_rack->procinfo->jack_client,
- plugin->holders[i].aux_ports[j]);
-
- if (err)
- fprintf (stderr, "%s: could not unregister jack port\n", __FUNCTION__);
- }
-
- g_free (plugin->holders[i].aux_ports);
- }
- }
-
- g_free (plugin->holders);
-
- for (i = 0; i < plugin->jack_rack->channels; i++)
- {
- g_free (plugin->audio_output_memory[i]);
- lff_free (plugin->wet_dry_fifos + i);
- }
-
- g_free (plugin->audio_output_memory);
- g_free (plugin->wet_dry_fifos);
- g_free (plugin->wet_dry_values);
-
- err = dlclose (plugin->dl_handle);
- if (err)
- {
- fprintf (stderr, "%s: error closing shared object '%s': %s\n",
- __FUNCTION__, plugin->desc->object_file, dlerror ());
- }
-
- g_free (plugin);
-}
-
-
-/* EOF */
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