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/pathscanner.h>
38 #include <pbd/xml++.h>
40 #include <midi++/manager.h>
42 #include <ardour/ardour.h>
43 #include <ardour/session.h>
44 #include <ardour/audioengine.h>
45 #include <ardour/ladspa_plugin.h>
46 #include <ardour/buffer_set.h>
48 #include <pbd/stl_delete.h>
54 using namespace ARDOUR;
57 LadspaPlugin::LadspaPlugin (void *mod, AudioEngine& e, Session& session, uint32_t index, nframes_t rate)
60 init (mod, index, rate);
63 LadspaPlugin::LadspaPlugin (const LadspaPlugin &other)
66 init (other.module, other._index, other.sample_rate);
68 for (uint32_t i = 0; i < parameter_count(); ++i) {
69 control_data[i] = other.shadow_data[i];
70 shadow_data[i] = other.shadow_data[i];
75 LadspaPlugin::init (void *mod, uint32_t index, nframes_t rate)
77 LADSPA_Descriptor_Function dfunc;
84 latency_control_port = 0;
85 was_activated = false;
87 dfunc = (LADSPA_Descriptor_Function) dlsym (module, "ladspa_descriptor");
89 if ((errstr = dlerror()) != NULL) {
90 error << _("LADSPA: module has no descriptor function.") << endmsg;
91 throw failed_constructor();
94 if ((descriptor = dfunc (index)) == 0) {
95 error << _("LADSPA: plugin has gone away since discovery!") << endmsg;
96 throw failed_constructor();
101 if (LADSPA_IS_INPLACE_BROKEN(descriptor->Properties)) {
102 error << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), descriptor->Name) << endmsg;
103 throw failed_constructor();
108 if (descriptor->instantiate == 0) {
109 throw failed_constructor();
112 if ((handle = descriptor->instantiate (descriptor, rate)) == 0) {
113 throw failed_constructor();
116 port_cnt = parameter_count();
118 control_data = new LADSPA_Data[port_cnt];
119 shadow_data = new LADSPA_Data[port_cnt];
121 for (i = 0; i < port_cnt; ++i) {
122 if (LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
123 connect_port (i, &control_data[i]);
125 if (LADSPA_IS_PORT_OUTPUT(port_descriptor (i)) &&
126 strcmp (port_names()[i], X_("latency")) == 0) {
127 latency_control_port = &control_data[i];
128 *latency_control_port = 0;
131 if (!LADSPA_IS_PORT_INPUT(port_descriptor (i))) {
135 shadow_data[i] = default_value (i);
139 Plugin::setup_controls ();
141 latency_compute_run ();
144 LadspaPlugin::~LadspaPlugin ()
149 GoingAway (); /* EMIT SIGNAL */
151 /* XXX who should close a plugin? */
156 delete [] control_data;
160 delete [] shadow_data;
165 LadspaPlugin::store_state (PluginState& state)
167 state.parameters.clear ();
169 for (uint32_t i = 0; i < parameter_count(); ++i){
171 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
172 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
173 pair<uint32_t,float> datum;
176 datum.second = shadow_data[i];
178 state.parameters.insert (datum);
184 LadspaPlugin::restore_state (PluginState& state)
186 for (map<uint32_t,float>::iterator i = state.parameters.begin(); i != state.parameters.end(); ++i) {
187 set_parameter (i->first, i->second);
192 LadspaPlugin::default_value (uint32_t port)
194 const LADSPA_PortRangeHint *prh = port_range_hints();
196 bool bounds_given = false;
197 bool sr_scaling = false;
199 /* defaults - case 1 */
201 if (LADSPA_IS_HINT_HAS_DEFAULT(prh[port].HintDescriptor)) {
202 if (LADSPA_IS_HINT_DEFAULT_MINIMUM(prh[port].HintDescriptor)) {
203 ret = prh[port].LowerBound;
208 /* FIXME: add support for logarithmic defaults */
210 else if (LADSPA_IS_HINT_DEFAULT_LOW(prh[port].HintDescriptor)) {
211 ret = prh[port].LowerBound * 0.75f + prh[port].UpperBound * 0.25f;
215 else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(prh[port].HintDescriptor)) {
216 ret = prh[port].LowerBound * 0.50f + prh[port].UpperBound * 0.50f;
220 else if (LADSPA_IS_HINT_DEFAULT_HIGH(prh[port].HintDescriptor)) {
221 ret = prh[port].LowerBound * 0.25f + prh[port].UpperBound * 0.75f;
225 else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(prh[port].HintDescriptor)) {
226 ret = prh[port].UpperBound;
230 else if (LADSPA_IS_HINT_DEFAULT_0(prh[port].HintDescriptor)) {
233 else if (LADSPA_IS_HINT_DEFAULT_1(prh[port].HintDescriptor)) {
236 else if (LADSPA_IS_HINT_DEFAULT_100(prh[port].HintDescriptor)) {
239 else if (LADSPA_IS_HINT_DEFAULT_440(prh[port].HintDescriptor)) {
248 /* defaults - case 2 */
249 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
250 !LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
252 if (prh[port].LowerBound < 0) {
255 ret = prh[port].LowerBound;
262 /* defaults - case 3 */
263 else if (!LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
264 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
266 if (prh[port].UpperBound > 0) {
269 ret = prh[port].UpperBound;
276 /* defaults - case 4 */
277 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
278 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
280 if (prh[port].LowerBound < 0 && prh[port].UpperBound > 0) {
282 } else if (prh[port].LowerBound < 0 && prh[port].UpperBound < 0) {
283 ret = prh[port].UpperBound;
285 ret = prh[port].LowerBound;
291 /* defaults - case 5 */
293 if (LADSPA_IS_HINT_SAMPLE_RATE(prh[port].HintDescriptor)) {
307 LadspaPlugin::set_parameter (uint32_t which, float val)
309 if (which < descriptor->PortCount) {
310 shadow_data[which] = (LADSPA_Data) val;
311 ParameterChanged (which, val); /* EMIT SIGNAL */
313 if (which < parameter_count() && controls[which]) {
314 controls[which]->Changed ();
318 warning << string_compose (_("illegal parameter number used with plugin \"%1\". This may"
319 "indicate a change in the plugin design, and presets may be"
326 LadspaPlugin::get_parameter (uint32_t which) const
328 if (LADSPA_IS_PORT_INPUT(port_descriptor (which))) {
329 return (float) shadow_data[which];
331 return (float) control_data[which];
336 LadspaPlugin::nth_parameter (uint32_t n, bool& ok) const
342 for (c = 0, x = 0; x < descriptor->PortCount; ++x) {
343 if (LADSPA_IS_PORT_CONTROL (port_descriptor (x))) {
354 LadspaPlugin::get_state()
356 XMLNode *root = new XMLNode(state_node_name());
359 LocaleGuard lg (X_("POSIX"));
361 for (uint32_t i = 0; i < parameter_count(); ++i){
363 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
364 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
366 child = new XMLNode("port");
367 snprintf(buf, sizeof(buf), "%u", i);
368 child->add_property("number", string(buf));
369 snprintf(buf, sizeof(buf), "%+f", shadow_data[i]);
370 child->add_property("value", string(buf));
371 root->add_child_nocopy (*child);
379 LadspaPlugin::save_preset (string name)
381 return Plugin::save_preset (name, "ladspa");
385 LadspaPlugin::set_state(const XMLNode& node)
389 XMLNodeConstIterator iter;
394 LocaleGuard lg (X_("POSIX"));
396 if (node.name() != state_node_name()) {
397 error << _("Bad node sent to LadspaPlugin::set_state") << endmsg;
401 nodes = node.children ("port");
403 for(iter = nodes.begin(); iter != nodes.end(); ++iter){
407 if ((prop = child->property("number")) != 0) {
408 port = prop->value().c_str();
410 warning << _("LADSPA: no ladspa port number") << endmsg;
413 if ((prop = child->property("value")) != 0) {
414 data = prop->value().c_str();
416 warning << _("LADSPA: no ladspa port data") << endmsg;
420 sscanf (port, "%" PRIu32, &port_id);
421 set_parameter (port_id, atof(data));
424 latency_compute_run ();
430 LadspaPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
432 LADSPA_PortRangeHint prh;
434 prh = port_range_hints()[which];
437 if (LADSPA_IS_HINT_BOUNDED_BELOW(prh.HintDescriptor)) {
438 desc.min_unbound = false;
439 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
440 desc.lower = prh.LowerBound * _session.frame_rate();
442 desc.lower = prh.LowerBound;
445 desc.min_unbound = true;
450 if (LADSPA_IS_HINT_BOUNDED_ABOVE(prh.HintDescriptor)) {
451 desc.max_unbound = false;
452 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
453 desc.upper = prh.UpperBound * _session.frame_rate();
455 desc.upper = prh.UpperBound;
458 desc.max_unbound = true;
459 desc.upper = 4; /* completely arbitrary */
462 if (LADSPA_IS_HINT_INTEGER (prh.HintDescriptor)) {
464 desc.smallstep = 0.1;
465 desc.largestep = 10.0;
467 float delta = desc.upper - desc.lower;
468 desc.step = delta / 1000.0f;
469 desc.smallstep = delta / 10000.0f;
470 desc.largestep = delta/10.0f;
473 desc.toggled = LADSPA_IS_HINT_TOGGLED (prh.HintDescriptor);
474 desc.logarithmic = LADSPA_IS_HINT_LOGARITHMIC (prh.HintDescriptor);
475 desc.sr_dependent = LADSPA_IS_HINT_SAMPLE_RATE (prh.HintDescriptor);
476 desc.integer_step = LADSPA_IS_HINT_INTEGER (prh.HintDescriptor);
478 desc.label = port_names()[which];
486 LadspaPlugin::describe_parameter (uint32_t which)
488 if (which < parameter_count()) {
489 return port_names()[which];
496 LadspaPlugin::latency () const
498 if (latency_control_port) {
499 return (nframes_t) floor (*latency_control_port);
506 LadspaPlugin::automatable () const
510 for (uint32_t i = 0; i < parameter_count(); ++i){
511 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
512 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
514 ret.insert (ret.end(), i);
522 LadspaPlugin::connect_and_run (BufferSet& bufs, uint32_t& in_index, uint32_t& out_index, nframes_t nframes, nframes_t offset)
524 uint32_t port_index = 0;
527 then = get_cycles ();
529 const uint32_t nbufs = bufs.count().get(DataType::AUDIO);
531 while (port_index < parameter_count()) {
532 if (LADSPA_IS_PORT_AUDIO (port_descriptor(port_index))) {
533 if (LADSPA_IS_PORT_INPUT (port_descriptor(port_index))) {
534 const size_t index = min(in_index, nbufs - 1);
535 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
536 //cerr << this << ' ' << name() << " @ " << offset << " inport " << in_index << " = buf "
537 // << min((uint32_t)in_index,nbufs) << " = " << &bufs[min((uint32_t)in_index,nbufs)][offset] << endl;
541 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
542 const size_t index = min(out_index,nbufs - 1);
543 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
544 // cerr << this << ' ' << name() << " @ " << offset << " outport " << out_index << " = buf "
545 // << min((uint32_t)out_index,nbufs) << " = " << &bufs[min((uint32_t)out_index,nbufs)][offset] << endl;
554 set_cycles ((uint32_t) (now - then));
560 LadspaPlugin::parameter_is_control (uint32_t param) const
562 return LADSPA_IS_PORT_CONTROL(port_descriptor (param));
566 LadspaPlugin::parameter_is_audio (uint32_t param) const
568 return LADSPA_IS_PORT_AUDIO(port_descriptor (param));
572 LadspaPlugin::parameter_is_output (uint32_t param) const
574 return LADSPA_IS_PORT_OUTPUT(port_descriptor (param));
578 LadspaPlugin::parameter_is_input (uint32_t param) const
580 return LADSPA_IS_PORT_INPUT(port_descriptor (param));
584 LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
587 if (param < parameter_count()) {
588 snprintf (buf, len, "%.3f", get_parameter (param));
596 LadspaPlugin::run (nframes_t nframes)
598 for (uint32_t i = 0; i < parameter_count(); ++i) {
599 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
600 control_data[i] = shadow_data[i];
603 descriptor->run (handle, nframes);
607 LadspaPlugin::latency_compute_run ()
609 if (!latency_control_port) {
613 /* we need to run the plugin so that it can set its latency
619 uint32_t port_index = 0;
620 uint32_t in_index = 0;
621 uint32_t out_index = 0;
622 const nframes_t bufsize = 1024;
623 LADSPA_Data buffer[bufsize];
625 memset(buffer,0,sizeof(LADSPA_Data)*bufsize);
627 /* Note that we've already required that plugins
628 be able to handle in-place processing.
633 while (port_index < parameter_count()) {
634 if (LADSPA_IS_PORT_AUDIO (port_descriptor (port_index))) {
635 if (LADSPA_IS_PORT_INPUT (port_descriptor (port_index))) {
636 connect_port (port_index, buffer);
638 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
639 connect_port (port_index, buffer);
651 LadspaPluginInfo::load (Session& session)
657 if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
658 error << string_compose(_("LADSPA: cannot load module from \"%1\""), path) << endmsg;
659 error << dlerror() << endmsg;
661 plugin.reset (new LadspaPlugin (module, session.engine(), session, index, session.frame_rate()));
664 plugin->set_info(PluginInfoPtr(new LadspaPluginInfo(*this)));
668 catch (failed_constructor &err) {
669 return PluginPtr ((Plugin*) 0);