2 Copyright (C) 2000-2006 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.
20 #define __STDC_FORMAT_MACROS 1
27 #include <cstdio> // so libraptor doesn't complain
35 #include <pbd/compose.h>
36 #include <pbd/error.h>
37 #include <pbd/xml++.h>
39 #include <midi++/manager.h>
41 #include <ardour/ardour.h>
42 #include <ardour/session.h>
43 #include <ardour/audioengine.h>
44 #include <ardour/ladspa_plugin.h>
45 #include <ardour/buffer_set.h>
47 #include <pbd/stl_delete.h>
53 using namespace ARDOUR;
56 LadspaPlugin::LadspaPlugin (void *mod, AudioEngine& e, Session& session, uint32_t index, nframes_t rate)
59 init (mod, index, rate);
62 LadspaPlugin::LadspaPlugin (const LadspaPlugin &other)
65 init (other._module, other._index, other._sample_rate);
67 for (uint32_t i = 0; i < parameter_count(); ++i) {
68 _control_data[i] = other._shadow_data[i];
69 _shadow_data[i] = other._shadow_data[i];
74 LadspaPlugin::init (void *mod, uint32_t index, nframes_t rate)
76 LADSPA_Descriptor_Function dfunc;
83 _latency_control_port = 0;
84 _was_activated = false;
86 dfunc = (LADSPA_Descriptor_Function) dlsym (_module, "ladspa_descriptor");
88 if ((errstr = dlerror()) != NULL) {
89 error << _("LADSPA: module has no descriptor function.") << endmsg;
90 throw failed_constructor();
93 if ((_descriptor = dfunc (index)) == 0) {
94 error << _("LADSPA: plugin has gone away since discovery!") << endmsg;
95 throw failed_constructor();
100 if (LADSPA_IS_INPLACE_BROKEN(_descriptor->Properties)) {
101 error << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), _descriptor->Name) << endmsg;
102 throw failed_constructor();
107 if (_descriptor->instantiate == 0) {
108 throw failed_constructor();
111 if ((_handle = _descriptor->instantiate (_descriptor, rate)) == 0) {
112 throw failed_constructor();
115 port_cnt = parameter_count();
117 _control_data = new LADSPA_Data[port_cnt];
118 _shadow_data = new LADSPA_Data[port_cnt];
120 for (i = 0; i < port_cnt; ++i) {
121 if (LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
122 connect_port (i, &_control_data[i]);
124 if (LADSPA_IS_PORT_OUTPUT(port_descriptor (i)) &&
125 strcmp (port_names()[i], X_("latency")) == 0) {
126 _latency_control_port = &_control_data[i];
127 *_latency_control_port = 0;
130 if (!LADSPA_IS_PORT_INPUT(port_descriptor (i))) {
134 _shadow_data[i] = default_value (i);
138 latency_compute_run ();
141 LadspaPlugin::~LadspaPlugin ()
146 GoingAway (); /* EMIT SIGNAL */
148 /* XXX who should close a plugin? */
153 delete [] _control_data;
157 delete [] _shadow_data;
162 LadspaPlugin::unique_id() const
165 snprintf (buf, sizeof (buf), "%lu", _descriptor->UniqueID);
170 LadspaPlugin::default_value (uint32_t port)
172 const LADSPA_PortRangeHint *prh = port_range_hints();
174 bool bounds_given = false;
175 bool sr_scaling = false;
176 bool earlier_hint = false;
178 /* defaults - case 1 */
180 if (LADSPA_IS_HINT_HAS_DEFAULT(prh[port].HintDescriptor)) {
181 if (LADSPA_IS_HINT_DEFAULT_MINIMUM(prh[port].HintDescriptor)) {
182 ret = prh[port].LowerBound;
188 /* FIXME: add support for logarithmic defaults */
190 else if (LADSPA_IS_HINT_DEFAULT_LOW(prh[port].HintDescriptor)) {
191 ret = prh[port].LowerBound * 0.75f + prh[port].UpperBound * 0.25f;
196 else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(prh[port].HintDescriptor)) {
197 ret = prh[port].LowerBound * 0.50f + prh[port].UpperBound * 0.50f;
202 else if (LADSPA_IS_HINT_DEFAULT_HIGH(prh[port].HintDescriptor)) {
203 ret = prh[port].LowerBound * 0.25f + prh[port].UpperBound * 0.75f;
208 else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(prh[port].HintDescriptor)) {
209 ret = prh[port].UpperBound;
214 else if (LADSPA_IS_HINT_DEFAULT_0(prh[port].HintDescriptor)) {
218 else if (LADSPA_IS_HINT_DEFAULT_1(prh[port].HintDescriptor)) {
222 else if (LADSPA_IS_HINT_DEFAULT_100(prh[port].HintDescriptor)) {
226 else if (LADSPA_IS_HINT_DEFAULT_440(prh[port].HintDescriptor)) {
236 /* defaults - case 2 */
237 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
238 !LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
240 if (prh[port].LowerBound < 0) {
243 ret = prh[port].LowerBound;
250 /* defaults - case 3 */
251 else if (!LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
252 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
254 if (prh[port].UpperBound > 0) {
257 ret = prh[port].UpperBound;
264 /* defaults - case 4 */
265 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
266 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
268 if (prh[port].LowerBound < 0 && prh[port].UpperBound > 0) {
270 } else if (prh[port].LowerBound < 0 && prh[port].UpperBound < 0) {
271 ret = prh[port].UpperBound;
273 ret = prh[port].LowerBound;
279 /* defaults - case 5 */
281 if (LADSPA_IS_HINT_SAMPLE_RATE(prh[port].HintDescriptor) && !earlier_hint) {
295 LadspaPlugin::set_parameter (uint32_t which, float val)
297 if (which < _descriptor->PortCount) {
298 _shadow_data[which] = (LADSPA_Data) val;
300 ParameterChanged (Parameter(PluginAutomation, which), val); /* EMIT SIGNAL */
302 if (which < parameter_count() && controls[which]) {
303 controls[which]->Changed ();
308 warning << string_compose (_("illegal parameter number used with plugin \"%1\". This may"
309 "indicate a change in the plugin design, and presets may be"
316 LadspaPlugin::get_parameter (uint32_t which) const
318 if (LADSPA_IS_PORT_INPUT(port_descriptor (which))) {
319 return (float) _shadow_data[which];
321 return (float) _control_data[which];
326 LadspaPlugin::nth_parameter (uint32_t n, bool& ok) const
332 for (c = 0, x = 0; x < _descriptor->PortCount; ++x) {
333 if (LADSPA_IS_PORT_CONTROL (port_descriptor (x))) {
344 LadspaPlugin::get_state()
346 XMLNode *root = new XMLNode(state_node_name());
349 LocaleGuard lg (X_("POSIX"));
351 for (uint32_t i = 0; i < parameter_count(); ++i){
353 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
354 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
356 child = new XMLNode("port");
357 snprintf(buf, sizeof(buf), "%u", i);
358 child->add_property("number", string(buf));
359 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
360 child->add_property("value", string(buf));
361 root->add_child_nocopy (*child);
369 LadspaPlugin::save_preset (string name)
371 return Plugin::save_preset (name, "ladspa");
375 LadspaPlugin::set_state(const XMLNode& node)
379 XMLNodeConstIterator iter;
384 LocaleGuard lg (X_("POSIX"));
386 if (node.name() != state_node_name()) {
387 error << _("Bad node sent to LadspaPlugin::set_state") << endmsg;
391 nodes = node.children ("port");
393 for(iter = nodes.begin(); iter != nodes.end(); ++iter){
397 if ((prop = child->property("number")) != 0) {
398 port = prop->value().c_str();
400 warning << _("LADSPA: no ladspa port number") << endmsg;
403 if ((prop = child->property("value")) != 0) {
404 data = prop->value().c_str();
406 warning << _("LADSPA: no ladspa port data") << endmsg;
410 sscanf (port, "%" PRIu32, &port_id);
411 set_parameter (port_id, atof(data));
414 latency_compute_run ();
420 LadspaPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
422 LADSPA_PortRangeHint prh;
424 prh = port_range_hints()[which];
427 if (LADSPA_IS_HINT_BOUNDED_BELOW(prh.HintDescriptor)) {
428 desc.min_unbound = false;
429 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
430 desc.lower = prh.LowerBound * _session.frame_rate();
432 desc.lower = prh.LowerBound;
435 desc.min_unbound = true;
440 if (LADSPA_IS_HINT_BOUNDED_ABOVE(prh.HintDescriptor)) {
441 desc.max_unbound = false;
442 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
443 desc.upper = prh.UpperBound * _session.frame_rate();
445 desc.upper = prh.UpperBound;
448 desc.max_unbound = true;
449 desc.upper = 4; /* completely arbitrary */
452 if (LADSPA_IS_HINT_INTEGER (prh.HintDescriptor)) {
454 desc.smallstep = 0.1;
455 desc.largestep = 10.0;
457 float delta = desc.upper - desc.lower;
458 desc.step = delta / 1000.0f;
459 desc.smallstep = delta / 10000.0f;
460 desc.largestep = delta/10.0f;
463 desc.toggled = LADSPA_IS_HINT_TOGGLED (prh.HintDescriptor);
464 desc.logarithmic = LADSPA_IS_HINT_LOGARITHMIC (prh.HintDescriptor);
465 desc.sr_dependent = LADSPA_IS_HINT_SAMPLE_RATE (prh.HintDescriptor);
466 desc.integer_step = LADSPA_IS_HINT_INTEGER (prh.HintDescriptor);
468 desc.label = port_names()[which];
475 LadspaPlugin::describe_parameter (Parameter which)
477 if (which.type() == PluginAutomation && which.id() < parameter_count()) {
478 return port_names()[which.id()];
485 LadspaPlugin::signal_latency () const
488 return _user_latency;
491 if (_latency_control_port) {
492 return (nframes_t) floor (*_latency_control_port);
499 LadspaPlugin::automatable () const
503 for (uint32_t i = 0; i < parameter_count(); ++i){
504 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
505 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
507 ret.insert (ret.end(), Parameter(PluginAutomation, i));
515 LadspaPlugin::connect_and_run (BufferSet& bufs, uint32_t& in_index, uint32_t& out_index, nframes_t nframes, nframes_t offset)
517 uint32_t port_index = 0;
520 then = get_cycles ();
522 const uint32_t nbufs = bufs.count().n_audio();
524 while (port_index < parameter_count()) {
525 if (LADSPA_IS_PORT_AUDIO (port_descriptor(port_index))) {
526 if (LADSPA_IS_PORT_INPUT (port_descriptor(port_index))) {
527 const size_t index = min(in_index, nbufs - 1);
528 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
529 //cerr << this << ' ' << name() << " @ " << offset << " inport " << in_index << " = buf "
530 // << min((uint32_t)in_index,nbufs) << " = " << &bufs[min((uint32_t)in_index,nbufs)][offset] << endl;
534 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
535 const size_t index = min(out_index,nbufs - 1);
536 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
537 // cerr << this << ' ' << name() << " @ " << offset << " outport " << out_index << " = buf "
538 // << min((uint32_t)out_index,nbufs) << " = " << &bufs[min((uint32_t)out_index,nbufs)][offset] << endl;
545 run_in_place (nframes);
547 set_cycles ((uint32_t) (now - then));
553 LadspaPlugin::parameter_is_control (uint32_t param) const
555 return LADSPA_IS_PORT_CONTROL(port_descriptor (param));
559 LadspaPlugin::parameter_is_audio (uint32_t param) const
561 return LADSPA_IS_PORT_AUDIO(port_descriptor (param));
565 LadspaPlugin::parameter_is_output (uint32_t param) const
567 return LADSPA_IS_PORT_OUTPUT(port_descriptor (param));
571 LadspaPlugin::parameter_is_input (uint32_t param) const
573 return LADSPA_IS_PORT_INPUT(port_descriptor (param));
577 LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
580 if (param < parameter_count()) {
581 snprintf (buf, len, "%.3f", get_parameter (param));
589 LadspaPlugin::run_in_place (nframes_t nframes)
591 for (uint32_t i = 0; i < parameter_count(); ++i) {
592 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
593 _control_data[i] = _shadow_data[i];
596 _descriptor->run (_handle, nframes);
600 LadspaPlugin::latency_compute_run ()
602 if (!_latency_control_port) {
606 /* we need to run the plugin so that it can set its latency
612 uint32_t port_index = 0;
613 uint32_t in_index = 0;
614 uint32_t out_index = 0;
615 const nframes_t bufsize = 1024;
616 LADSPA_Data buffer[bufsize];
618 memset(buffer,0,sizeof(LADSPA_Data)*bufsize);
620 /* Note that we've already required that plugins
621 be able to handle in-place processing.
626 while (port_index < parameter_count()) {
627 if (LADSPA_IS_PORT_AUDIO (port_descriptor (port_index))) {
628 if (LADSPA_IS_PORT_INPUT (port_descriptor (port_index))) {
629 connect_port (port_index, buffer);
631 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
632 connect_port (port_index, buffer);
639 run_in_place (bufsize);
644 LadspaPluginInfo::load (Session& session)
650 if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
651 error << string_compose(_("LADSPA: cannot load module from \"%1\""), path) << endmsg;
652 error << dlerror() << endmsg;
654 plugin.reset (new LadspaPlugin (module, session.engine(), session, index, session.frame_rate()));
657 plugin->set_info(PluginInfoPtr(new LadspaPluginInfo(*this)));
661 catch (failed_constructor &err) {
662 return PluginPtr ((Plugin*) 0);