2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "libardour-config.h"
26 #include "pbd/xml++.h"
27 #include "pbd/types_convert.h"
29 #include "ardour/automatable.h"
30 #include "ardour/chan_count.h"
31 #include "ardour/debug.h"
32 #include "ardour/processor.h"
33 #include "ardour/types.h"
35 #ifdef WINDOWS_VST_SUPPORT
36 #include "ardour/windows_vst_plugin.h"
39 #ifdef AUDIOUNIT_SUPPORT
40 #include "ardour/audio_unit.h"
43 #include "ardour/audioengine.h"
44 #include "ardour/session.h"
45 #include "ardour/types.h"
50 using namespace ARDOUR;
53 namespace ARDOUR { class Session; }
55 // Always saved as Processor, but may be IOProcessor or Send in legacy sessions
56 const string Processor::state_node_name = "Processor";
58 Processor::Processor(Session& session, const string& name)
59 : SessionObject(session, name)
60 , Automatable (session)
61 , _pending_active(false)
63 , _next_ab_is_active(false)
65 , _display_to_user (true)
74 , _playback_offset (0)
79 Processor::Processor (const Processor& other)
80 : Evoral::ControlSet (other)
81 , SessionObject (other.session(), other.name())
82 , Automatable (other.session())
84 , _pending_active(other._pending_active)
85 , _active(other._active)
86 , _next_ab_is_active(false)
88 , _display_to_user (true)
97 , _playback_offset (0)
98 , _loop_location (other._loop_location)
102 Processor::~Processor ()
104 DEBUG_TRACE (DEBUG::Destruction, string_compose ("processor %1 destructor\n", _name));
108 Processor::get_state (void)
115 <Automation [optionally with visible="...." ]>
117 <AutomationList id=N>
130 XMLNode* node = new XMLNode (state_node_name);
132 node->set_property("id", id());
133 node->set_property("name", name());
134 node->set_property("active", active());
137 node->add_child_copy (*_extra_xml);
140 if (!skip_saving_automation) {
141 XMLNode& automation = Automatable::get_automation_xml_state();
142 if (!automation.children().empty() || !automation.properties().empty()) {
143 node->add_child_nocopy (automation);
149 node->set_property("user-latency", _user_latency);
155 Processor::set_state_2X (const XMLNode & node, int /*version*/)
157 XMLProperty const * prop;
159 XMLNodeList children = node.children ();
161 for (XMLNodeIterator i = children.begin(); i != children.end(); ++i) {
163 if ((*i)->name() == X_("IO")) {
165 if ((prop = (*i)->property ("name")) != 0) {
166 set_name (prop->value ());
171 //note: in A2, active state was stored in the Redirect node, not the child IO node
173 * if ((prop = (*i)->property ("active")) != 0) {
174 bool const a = string_is_affirmative (prop->value ());
191 Processor::set_state (const XMLNode& node, int version)
193 if (version < 3000) {
194 return set_state_2X (node, version);
198 // Only testing for the presence of the property not value
199 if (!node.get_property("ignore-name", ignore_name)) {
201 // may not exist for legacy 3.0 sessions
202 if (node.get_property ("name", name)) {
203 /* don't let derived classes have a crack at set_name,
204 as some (like Send) will screw with the one we suggest.
206 Processor::set_name (name);
212 XMLNodeList nlist = node.children();
213 XMLNodeIterator niter;
215 Stateful::save_extra_xml (node);
217 XMLProperty const * prop = 0;
218 XMLProperty const * legacy_active = 0;
220 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
222 if ((*niter)->name() == X_("Automation")) {
224 if ((prop = (*niter)->property ("path")) != 0) {
225 old_set_automation_state (*(*niter));
227 set_automation_xml_state (*(*niter), Evoral::Parameter(PluginAutomation));
230 } else if ((*niter)->name() == "Redirect") {
231 if ( !(legacy_active = (*niter)->property("active"))) {
232 error << string_compose(_("No %1 property flag in element %2"), "active", (*niter)->name()) << endl;
237 if ((prop = node.property ("active")) == 0) {
239 prop = legacy_active;
241 error << _("No child node with active property") << endmsg;
246 bool const a = string_to<bool> (prop->value ()) && !_session.get_bypass_all_loaded_plugins();
255 node.get_property ("user-latency", _user_latency);
260 /** @pre Caller must hold process lock */
262 Processor::configure_io (ChanCount in, ChanCount out)
264 /* This class assumes 1:1 input:output.static output stream count.
265 Derived classes must override and set _configured_output appropriately
266 if this is not the case
269 _configured_input = in;
270 _configured_output = out;
273 ConfigurationChanged (in, out); /* EMIT SIGNAL */
279 Processor::map_loop_range (samplepos_t& start, samplepos_t& end) const
281 if (!_loop_location) {
285 /* no backwards looping */
289 const samplepos_t loop_end = _loop_location->end ();
290 if (start < loop_end) {
294 const samplepos_t loop_start = _loop_location->start ();
295 const samplecnt_t looplen = loop_end - loop_start;
296 const sampleoffset_t start_off = (start - loop_start) % looplen;
297 const samplepos_t start_pos = loop_start + start_off;
299 assert (start >= start_pos);
300 end -= start - start_pos;
302 assert (end > start);
307 Processor::set_display_to_user (bool yn)
309 _display_to_user = yn;
313 Processor::set_pre_fader (bool p)
319 Processor::set_owner (SessionObject* o)
325 Processor::owner() const