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.
25 #include <cstdio> // so libraptor doesn't complain
33 #include <pbd/compose.h>
34 #include <pbd/error.h>
35 #include <pbd/pathscanner.h>
36 #include <pbd/xml++.h>
38 #include <midi++/manager.h>
40 #include <ardour/ardour.h>
41 #include <ardour/session.h>
42 #include <ardour/audioengine.h>
43 #include <ardour/ladspa_plugin.h>
44 #include <ardour/buffer_set.h>
46 #include <pbd/stl_delete.h>
52 using namespace ARDOUR;
55 LadspaPlugin::LadspaPlugin (void *mod, AudioEngine& e, Session& session, uint32_t index, jack_nframes_t rate)
58 init (mod, index, rate);
61 LadspaPlugin::LadspaPlugin (const LadspaPlugin &other)
64 init (other.module, other._index, other.sample_rate);
66 for (uint32_t i = 0; i < parameter_count(); ++i) {
67 control_data[i] = other.shadow_data[i];
68 shadow_data[i] = other.shadow_data[i];
73 LadspaPlugin::init (void *mod, uint32_t index, jack_nframes_t rate)
75 LADSPA_Descriptor_Function dfunc;
82 latency_control_port = 0;
83 was_activated = false;
85 dfunc = (LADSPA_Descriptor_Function) dlsym (module, "ladspa_descriptor");
87 if ((errstr = dlerror()) != NULL) {
88 error << _("LADSPA: module has no descriptor function.") << endmsg;
89 throw failed_constructor();
92 if ((descriptor = dfunc (index)) == 0) {
93 error << _("LADSPA: plugin has gone away since discovery!") << endmsg;
94 throw failed_constructor();
99 if (LADSPA_IS_INPLACE_BROKEN(descriptor->Properties)) {
100 error << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), descriptor->Name) << endmsg;
101 throw failed_constructor();
106 if (descriptor->instantiate == 0) {
107 throw failed_constructor();
110 if ((handle = descriptor->instantiate (descriptor, rate)) == 0) {
111 throw failed_constructor();
114 port_cnt = parameter_count();
116 control_data = new LADSPA_Data[port_cnt];
117 shadow_data = new LADSPA_Data[port_cnt];
119 for (i = 0; i < port_cnt; ++i) {
120 if (LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
121 connect_port (i, &control_data[i]);
123 if (LADSPA_IS_PORT_OUTPUT(port_descriptor (i)) &&
124 strcmp (port_names()[i], X_("latency")) == 0) {
125 latency_control_port = &control_data[i];
126 *latency_control_port = 0;
129 if (!LADSPA_IS_PORT_INPUT(port_descriptor (i))) {
133 shadow_data[i] = default_value (i);
137 Plugin::setup_controls ();
139 latency_compute_run ();
142 LadspaPlugin::~LadspaPlugin ()
147 GoingAway (this); /* EMIT SIGNAL */
149 /* XXX who should close a plugin? */
154 delete [] control_data;
158 delete [] shadow_data;
163 LadspaPlugin::store_state (PluginState& state)
165 state.parameters.clear ();
167 for (uint32_t i = 0; i < parameter_count(); ++i){
169 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
170 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
171 pair<uint32_t,float> datum;
174 datum.second = shadow_data[i];
176 state.parameters.insert (datum);
182 LadspaPlugin::restore_state (PluginState& state)
184 for (map<uint32_t,float>::iterator i = state.parameters.begin(); i != state.parameters.end(); ++i) {
185 set_parameter (i->first, i->second);
190 LadspaPlugin::default_value (uint32_t port)
192 const LADSPA_PortRangeHint *prh = port_range_hints();
194 bool bounds_given = false;
195 bool sr_scaling = false;
197 /* defaults - case 1 */
199 if (LADSPA_IS_HINT_HAS_DEFAULT(prh[port].HintDescriptor)) {
200 if (LADSPA_IS_HINT_DEFAULT_MINIMUM(prh[port].HintDescriptor)) {
201 ret = prh[port].LowerBound;
206 /* FIXME: add support for logarithmic defaults */
208 else if (LADSPA_IS_HINT_DEFAULT_LOW(prh[port].HintDescriptor)) {
209 ret = prh[port].LowerBound * 0.75f + prh[port].UpperBound * 0.25f;
213 else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(prh[port].HintDescriptor)) {
214 ret = prh[port].LowerBound * 0.50f + prh[port].UpperBound * 0.50f;
218 else if (LADSPA_IS_HINT_DEFAULT_HIGH(prh[port].HintDescriptor)) {
219 ret = prh[port].LowerBound * 0.25f + prh[port].UpperBound * 0.75f;
223 else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(prh[port].HintDescriptor)) {
224 ret = prh[port].UpperBound;
228 else if (LADSPA_IS_HINT_DEFAULT_0(prh[port].HintDescriptor)) {
231 else if (LADSPA_IS_HINT_DEFAULT_1(prh[port].HintDescriptor)) {
234 else if (LADSPA_IS_HINT_DEFAULT_100(prh[port].HintDescriptor)) {
237 else if (LADSPA_IS_HINT_DEFAULT_440(prh[port].HintDescriptor)) {
246 /* defaults - case 2 */
247 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
248 !LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
250 if (prh[port].LowerBound < 0) {
253 ret = prh[port].LowerBound;
260 /* defaults - case 3 */
261 else if (!LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
262 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
264 if (prh[port].UpperBound > 0) {
267 ret = prh[port].UpperBound;
274 /* defaults - case 4 */
275 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
276 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
278 if (prh[port].LowerBound < 0 && prh[port].UpperBound > 0) {
280 } else if (prh[port].LowerBound < 0 && prh[port].UpperBound < 0) {
281 ret = prh[port].UpperBound;
283 ret = prh[port].LowerBound;
289 /* defaults - case 5 */
291 if (LADSPA_IS_HINT_SAMPLE_RATE(prh[port].HintDescriptor)) {
305 LadspaPlugin::set_parameter (uint32_t which, float val)
307 if (which < descriptor->PortCount) {
308 shadow_data[which] = (LADSPA_Data) val;
309 ParameterChanged (which, val); /* EMIT SIGNAL */
311 if (which < parameter_count() && controls[which]) {
312 controls[which]->Changed ();
316 warning << string_compose (_("illegal parameter number used with plugin \"%1\". This may"
317 "indicate a change in the plugin design, and presets may be"
324 LadspaPlugin::get_parameter (uint32_t which) const
326 if (LADSPA_IS_PORT_INPUT(port_descriptor (which))) {
327 return (float) shadow_data[which];
329 return (float) control_data[which];
334 LadspaPlugin::nth_parameter (uint32_t n, bool& ok) const
340 for (c = 0, x = 0; x < descriptor->PortCount; ++x) {
341 if (LADSPA_IS_PORT_CONTROL (port_descriptor (x))) {
352 LadspaPlugin::get_state()
354 XMLNode *root = new XMLNode(state_node_name());
357 LocaleGuard lg (X_("POSIX"));
359 for (uint32_t i = 0; i < parameter_count(); ++i){
361 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
362 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
364 child = new XMLNode("port");
365 snprintf(buf, sizeof(buf), "%u", i);
366 child->add_property("number", string(buf));
367 snprintf(buf, sizeof(buf), "%+f", shadow_data[i]);
368 child->add_property("value", string(buf));
369 root->add_child_nocopy (*child);
377 LadspaPlugin::save_preset (string name)
379 return Plugin::save_preset (name, "ladspa");
383 LadspaPlugin::set_state(const XMLNode& node)
387 XMLNodeConstIterator iter;
392 LocaleGuard lg (X_("POSIX"));
394 if (node.name() != state_node_name()) {
395 error << _("Bad node sent to LadspaPlugin::set_state") << endmsg;
399 nodes = node.children ("port");
401 for(iter = nodes.begin(); iter != nodes.end(); ++iter){
405 if ((prop = child->property("number")) != 0) {
406 port = prop->value().c_str();
408 warning << _("LADSPA: no ladspa port number") << endmsg;
411 if ((prop = child->property("value")) != 0) {
412 data = prop->value().c_str();
414 warning << _("LADSPA: no ladspa port data") << endmsg;
418 sscanf (port, "%" PRIu32, &port_id);
419 set_parameter (port_id, atof(data));
422 latency_compute_run ();
428 LadspaPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
430 LADSPA_PortRangeHint prh;
432 prh = port_range_hints()[which];
435 if (LADSPA_IS_HINT_BOUNDED_BELOW(prh.HintDescriptor)) {
436 desc.min_unbound = false;
437 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
438 desc.lower = prh.LowerBound * _session.frame_rate();
440 desc.lower = prh.LowerBound;
443 desc.min_unbound = true;
448 if (LADSPA_IS_HINT_BOUNDED_ABOVE(prh.HintDescriptor)) {
449 desc.max_unbound = false;
450 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
451 desc.upper = prh.UpperBound * _session.frame_rate();
453 desc.upper = prh.UpperBound;
456 desc.max_unbound = true;
457 desc.upper = 4; /* completely arbitrary */
460 if (LADSPA_IS_HINT_INTEGER (prh.HintDescriptor)) {
462 desc.smallstep = 0.1;
463 desc.largestep = 10.0;
465 float delta = desc.upper - desc.lower;
466 desc.step = delta / 1000.0f;
467 desc.smallstep = delta / 10000.0f;
468 desc.largestep = delta/10.0f;
471 desc.toggled = LADSPA_IS_HINT_TOGGLED (prh.HintDescriptor);
472 desc.logarithmic = LADSPA_IS_HINT_LOGARITHMIC (prh.HintDescriptor);
473 desc.sr_dependent = LADSPA_IS_HINT_SAMPLE_RATE (prh.HintDescriptor);
474 desc.integer_step = LADSPA_IS_HINT_INTEGER (prh.HintDescriptor);
476 desc.label = port_names()[which];
484 LadspaPlugin::describe_parameter (uint32_t which)
486 if (which < parameter_count()) {
487 return port_names()[which];
494 LadspaPlugin::latency () const
496 if (latency_control_port) {
497 return (jack_nframes_t) floor (*latency_control_port);
504 LadspaPlugin::automatable () const
508 for (uint32_t i = 0; i < parameter_count(); ++i){
509 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
510 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
512 ret.insert (ret.end(), i);
520 LadspaPlugin::connect_and_run (BufferSet& bufs, uint32_t& in_index, uint32_t& out_index, jack_nframes_t nframes, jack_nframes_t offset)
522 uint32_t port_index = 0;
525 then = get_cycles ();
527 const uint32_t nbufs = bufs.count().get(DataType::AUDIO);
529 while (port_index < parameter_count()) {
530 if (LADSPA_IS_PORT_AUDIO (port_descriptor(port_index))) {
531 if (LADSPA_IS_PORT_INPUT (port_descriptor(port_index))) {
532 const size_t index = min(in_index, nbufs - 1);
533 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
534 //cerr << this << ' ' << name() << " @ " << offset << " inport " << in_index << " = buf "
535 // << min((uint32_t)in_index,nbufs) << " = " << &bufs[min((uint32_t)in_index,nbufs)][offset] << endl;
539 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
540 const size_t index = min(out_index,nbufs - 1);
541 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
542 // cerr << this << ' ' << name() << " @ " << offset << " outport " << out_index << " = buf "
543 // << min((uint32_t)out_index,nbufs) << " = " << &bufs[min((uint32_t)out_index,nbufs)][offset] << endl;
552 set_cycles ((uint32_t) (now - then));
558 LadspaPlugin::parameter_is_control (uint32_t param) const
560 return LADSPA_IS_PORT_CONTROL(port_descriptor (param));
564 LadspaPlugin::parameter_is_audio (uint32_t param) const
566 return LADSPA_IS_PORT_AUDIO(port_descriptor (param));
570 LadspaPlugin::parameter_is_output (uint32_t param) const
572 return LADSPA_IS_PORT_OUTPUT(port_descriptor (param));
576 LadspaPlugin::parameter_is_input (uint32_t param) const
578 return LADSPA_IS_PORT_INPUT(port_descriptor (param));
582 LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
585 if (param < parameter_count()) {
586 snprintf (buf, len, "%.3f", get_parameter (param));
594 LadspaPlugin::run (jack_nframes_t nframes)
596 for (uint32_t i = 0; i < parameter_count(); ++i) {
597 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
598 control_data[i] = shadow_data[i];
601 descriptor->run (handle, nframes);
605 LadspaPlugin::latency_compute_run ()
607 if (!latency_control_port) {
611 /* we need to run the plugin so that it can set its latency
617 uint32_t port_index = 0;
618 uint32_t in_index = 0;
619 uint32_t out_index = 0;
620 const jack_nframes_t bufsize = 1024;
621 LADSPA_Data buffer[bufsize];
623 memset(buffer,0,sizeof(LADSPA_Data)*bufsize);
625 /* Note that we've already required that plugins
626 be able to handle in-place processing.
631 while (port_index < parameter_count()) {
632 if (LADSPA_IS_PORT_AUDIO (port_descriptor (port_index))) {
633 if (LADSPA_IS_PORT_INPUT (port_descriptor (port_index))) {
634 connect_port (port_index, buffer);
636 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
637 connect_port (port_index, buffer);
649 LadspaPluginInfo::load (Session& session)
655 if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
656 error << string_compose(_("LADSPA: cannot load module from \"%1\""), path) << endmsg;
657 error << dlerror() << endmsg;
659 plugin.reset (new LadspaPlugin (module, session.engine(), session, index, session.frame_rate()));
662 plugin->set_info(PluginInfoPtr(new LadspaPluginInfo(*this)));
666 catch (failed_constructor &err) {
667 return PluginPtr ((Plugin*) 0);