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360 lines
11 KiB
360 lines
11 KiB
/*
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* JACK Rack
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*
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* Original:
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* Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
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*
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* Modification for MLT:
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* Copyright (C) 2004 Ushodaya Enterprises Limited
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* Author: Dan Dennedy <dan@dennedy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <string.h>
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#include <ctype.h>
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#include <ladspa.h>
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#include <libxml/tree.h>
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#include "jack_rack.h"
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#include "lock_free_fifo.h"
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#include "plugin_settings.h"
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#ifndef _
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#define _(x) x
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#endif
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#define _x (xmlChar*)
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#define _s (char*)
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jack_rack_t *
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jack_rack_new (const char * client_name, unsigned long channels)
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{
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jack_rack_t *rack;
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rack = g_malloc (sizeof (jack_rack_t));
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rack->saved_plugins = NULL;
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rack->channels = channels;
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rack->procinfo = process_info_new (client_name, channels, FALSE, FALSE);
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if (!rack->procinfo) {
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g_free (rack);
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return NULL;
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}
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rack->plugin_mgr = plugin_mgr_new ();
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plugin_mgr_set_plugins (rack->plugin_mgr, channels);
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return rack;
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}
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void
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jack_rack_destroy (jack_rack_t * jack_rack)
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{
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process_quit (jack_rack->procinfo);
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plugin_mgr_destroy (jack_rack->plugin_mgr);
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process_info_destroy (jack_rack->procinfo);
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g_slist_free (jack_rack->saved_plugins);
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g_free (jack_rack);
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}
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plugin_t *
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jack_rack_instantiate_plugin (jack_rack_t * jack_rack, plugin_desc_t * desc)
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{
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plugin_t * plugin;
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/* check whether or not the plugin is RT capable and confirm with the user if it isn't */
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if (!LADSPA_IS_HARD_RT_CAPABLE(desc->properties)) {
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fprintf (stderr, "Plugin not RT capable. The plugin '%s' does not describe itself as being capable of real-time operation. You may experience drop outs or jack may even kick us out if you use it.\n",
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desc->name);
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}
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/* create the plugin */
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plugin = plugin_new (desc, jack_rack);
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if (!plugin) {
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fprintf (stderr, "Error loading file plugin '%s' from file '%s'\n",
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desc->name, desc->object_file);
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}
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return plugin;
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}
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void
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jack_rack_add_saved_plugin (jack_rack_t * jack_rack, saved_plugin_t * saved_plugin)
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{
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plugin_t * plugin = jack_rack_instantiate_plugin (jack_rack, saved_plugin->settings->desc);
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if (!plugin)
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return;
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jack_rack->saved_plugins = g_slist_append (jack_rack->saved_plugins, saved_plugin);
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process_add_plugin (jack_rack->procinfo, plugin);
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jack_rack_add_plugin (jack_rack, plugin);
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}
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void
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jack_rack_add_plugin (jack_rack_t * jack_rack, plugin_t * plugin)
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{
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saved_plugin_t * saved_plugin = NULL;
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GSList * list;
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unsigned long control, channel;
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LADSPA_Data value;
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guint copy;
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/* see if there's any saved settings that match the plugin id */
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for (list = jack_rack->saved_plugins; list; list = g_slist_next (list))
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{
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saved_plugin = list->data;
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if (saved_plugin->settings->desc->id == plugin->desc->id)
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{
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/* process the settings! */
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jack_rack->saved_plugins = g_slist_remove (jack_rack->saved_plugins, saved_plugin);
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break;
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}
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saved_plugin = NULL;
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}
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/* initialize plugin parameters */
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plugin->enabled = settings_get_enabled (saved_plugin->settings);
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plugin->wet_dry_enabled = settings_get_wet_dry_enabled (saved_plugin->settings);
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for (control = 0; control < saved_plugin->settings->desc->control_port_count; control++)
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for (copy = 0; copy < plugin->copies; copy++)
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{
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value = settings_get_control_value (saved_plugin->settings, copy, control);
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plugin->holders[copy].control_memory[control] = value;
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//printf("setting control value %s (%d) = %f\n", saved_plugin->settings->desc->port_names[control], copy, value);
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// lff_write (plugin->holders[copy].ui_control_fifos + control, &value);
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}
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if (plugin->wet_dry_enabled)
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for (channel = 0; channel < jack_rack->channels; channel++)
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{
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value = settings_get_wet_dry_value (saved_plugin->settings, channel);
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plugin->wet_dry_values[channel] = value;
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//printf("setting wet/dry value %d = %f\n", channel, value);
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// lff_write (plugin->wet_dry_fifos + channel, &value);
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}
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}
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static void
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saved_rack_parse_plugin (jack_rack_t * jack_rack, saved_rack_t * saved_rack, saved_plugin_t * saved_plugin,
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const char * filename, xmlNodePtr plugin)
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{
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plugin_desc_t * desc;
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settings_t * settings = NULL;
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xmlNodePtr node;
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xmlNodePtr sub_node;
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xmlChar *content;
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unsigned long num;
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unsigned long control = 0;
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for (node = plugin->children; node; node = node->next)
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{
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if (xmlStrcmp (node->name, _x("id")) == 0)
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{
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content = xmlNodeGetContent (node);
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num = strtoul (_s(content), NULL, 10);
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xmlFree (content);
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desc = plugin_mgr_get_any_desc (jack_rack->plugin_mgr, num);
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if (!desc)
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{
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fprintf (stderr, _("The file '%s' contains an unknown plugin with ID '%ld'; skipping\n"), filename, num);
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return;
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}
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settings = settings_new (desc, saved_rack->channels, saved_rack->sample_rate);
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}
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else if (xmlStrcmp (node->name, _x("enabled")) == 0)
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{
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content = xmlNodeGetContent (node);
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settings_set_enabled (settings, xmlStrcmp (content, _x("true")) == 0 ? TRUE : FALSE);
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xmlFree (content);
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}
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else if (xmlStrcmp (node->name, _x("wet_dry_enabled")) == 0)
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{
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content = xmlNodeGetContent (node);
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settings_set_wet_dry_enabled (settings, xmlStrcmp (content, _x("true")) == 0 ? TRUE : FALSE);
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xmlFree (content);
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}
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else if (xmlStrcmp (node->name, _x("wet_dry_locked")) == 0)
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{
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content = xmlNodeGetContent (node);
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settings_set_wet_dry_locked (settings, xmlStrcmp (content, _x("true")) == 0 ? TRUE : FALSE);
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xmlFree (content);
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}
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else if (xmlStrcmp (node->name, _x("wet_dry_values")) == 0)
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{
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unsigned long channel = 0;
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for (sub_node = node->children; sub_node; sub_node = sub_node->next)
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{
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if (xmlStrcmp (sub_node->name, _x("value")) == 0)
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{
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content = xmlNodeGetContent (sub_node);
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settings_set_wet_dry_value (settings, channel, strtod (_s(content), NULL));
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xmlFree (content);
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channel++;
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}
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}
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}
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else if (xmlStrcmp (node->name, _x("lockall")) == 0)
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{
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content = xmlNodeGetContent (node);
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settings_set_lock_all (settings, xmlStrcmp (content, _x("true")) == 0 ? TRUE : FALSE);
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xmlFree (content);
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}
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else if (xmlStrcmp (node->name, _x("controlrow")) == 0)
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{
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gint copy = 0;
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for (sub_node = node->children; sub_node; sub_node = sub_node->next)
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{
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if (xmlStrcmp (sub_node->name, _x("lock")) == 0)
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{
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content = xmlNodeGetContent (sub_node);
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settings_set_lock (settings, control, xmlStrcmp (content, _x("true")) == 0 ? TRUE : FALSE);
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xmlFree (content);
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}
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else if (xmlStrcmp (sub_node->name, _x("value")) == 0)
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{
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content = xmlNodeGetContent (sub_node);
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settings_set_control_value (settings, copy, control, strtod (_s(content), NULL));
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xmlFree (content);
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copy++;
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}
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}
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control++;
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}
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}
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if (settings)
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saved_plugin->settings = settings;
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}
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static void
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saved_rack_parse_jackrack (jack_rack_t * jack_rack, saved_rack_t * saved_rack, const char * filename, xmlNodePtr jackrack)
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{
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xmlNodePtr node;
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xmlChar *content;
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saved_plugin_t * saved_plugin;
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for (node = jackrack->children; node; node = node->next)
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{
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if (xmlStrcmp (node->name, _x("channels")) == 0)
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{
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content = xmlNodeGetContent (node);
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saved_rack->channels = strtoul (_s(content), NULL, 10);
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xmlFree (content);
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}
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else if (xmlStrcmp (node->name, _x("samplerate")) == 0)
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{
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content = xmlNodeGetContent (node);
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saved_rack->sample_rate = strtoul (_s(content), NULL, 10);
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xmlFree (content);
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}
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else if (xmlStrcmp (node->name, _x("plugin")) == 0)
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{
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saved_plugin = g_malloc0 (sizeof (saved_plugin_t));
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saved_rack->plugins = g_slist_append (saved_rack->plugins, saved_plugin);
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saved_rack_parse_plugin (jack_rack, saved_rack, saved_plugin, filename, node);
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}
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}
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}
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static saved_rack_t *
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saved_rack_new (jack_rack_t * jack_rack, const char * filename, xmlDocPtr doc)
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{
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xmlNodePtr node;
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saved_rack_t *saved_rack;
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/* create the saved rack */
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saved_rack = g_malloc (sizeof (saved_rack_t));
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saved_rack->plugins = NULL;
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saved_rack->sample_rate = 48000;
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saved_rack->channels = 2;
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for (node = doc->children; node; node = node->next)
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{
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if (xmlStrcmp (node->name, _x("jackrack")) == 0)
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saved_rack_parse_jackrack (jack_rack, saved_rack, filename, node);
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}
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return saved_rack;
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}
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static void
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saved_rack_destroy (saved_rack_t * saved_rack)
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{
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GSList * list;
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for (list = saved_rack->plugins; list; list = g_slist_next (list))
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settings_destroy (((saved_plugin_t *) list->data)->settings);
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g_slist_free (saved_rack->plugins);
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g_free (saved_rack);
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}
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int
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jack_rack_open_file (jack_rack_t * jack_rack, const char * filename)
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{
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xmlDocPtr doc;
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saved_rack_t * saved_rack;
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GSList * list;
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saved_plugin_t * saved_plugin;
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doc = xmlParseFile (filename);
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if (!doc)
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{
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fprintf (stderr, _("Could not parse file '%s'\n"), filename);
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return 1;
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}
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if (xmlStrcmp ( ((xmlDtdPtr)doc->children)->name, _x("jackrack")) != 0)
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{
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fprintf (stderr, _("The file '%s' is not a JACK Rack settings file\n"), filename);
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return 1;
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}
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saved_rack = saved_rack_new (jack_rack, filename, doc);
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xmlFreeDoc (doc);
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if (!saved_rack)
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return 1;
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for (list = saved_rack->plugins; list; list = g_slist_next (list))
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{
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saved_plugin = list->data;
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settings_set_sample_rate (saved_plugin->settings, sample_rate);
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jack_rack_add_saved_plugin (jack_rack, saved_plugin);
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}
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saved_rack_destroy (saved_rack);
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return 0;
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}
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/* EOF */
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