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::store_state (PluginState& state)
164 state.parameters.clear ();
166 for (uint32_t i = 0; i < parameter_count(); ++i){
168 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
169 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
170 pair<uint32_t,float> datum;
173 datum.second = shadow_data[i];
175 state.parameters.insert (datum);
181 LadspaPlugin::restore_state (PluginState& state)
183 for (map<uint32_t,float>::iterator i = state.parameters.begin(); i != state.parameters.end(); ++i) {
184 set_parameter (i->first, i->second);
189 LadspaPlugin::default_value (uint32_t port)
191 const LADSPA_PortRangeHint *prh = port_range_hints();
193 bool bounds_given = false;
194 bool sr_scaling = false;
195 bool earlier_hint = 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;
207 /* FIXME: add support for logarithmic defaults */
209 else if (LADSPA_IS_HINT_DEFAULT_LOW(prh[port].HintDescriptor)) {
210 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;
221 else if (LADSPA_IS_HINT_DEFAULT_HIGH(prh[port].HintDescriptor)) {
222 ret = prh[port].LowerBound * 0.25f + prh[port].UpperBound * 0.75f;
227 else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(prh[port].HintDescriptor)) {
228 ret = prh[port].UpperBound;
233 else if (LADSPA_IS_HINT_DEFAULT_0(prh[port].HintDescriptor)) {
237 else if (LADSPA_IS_HINT_DEFAULT_1(prh[port].HintDescriptor)) {
241 else if (LADSPA_IS_HINT_DEFAULT_100(prh[port].HintDescriptor)) {
245 else if (LADSPA_IS_HINT_DEFAULT_440(prh[port].HintDescriptor)) {
255 /* defaults - case 2 */
256 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
257 !LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
259 if (prh[port].LowerBound < 0) {
262 ret = prh[port].LowerBound;
269 /* defaults - case 3 */
270 else if (!LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
271 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
273 if (prh[port].UpperBound > 0) {
276 ret = prh[port].UpperBound;
283 /* defaults - case 4 */
284 else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
285 LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
287 if (prh[port].LowerBound < 0 && prh[port].UpperBound > 0) {
289 } else if (prh[port].LowerBound < 0 && prh[port].UpperBound < 0) {
290 ret = prh[port].UpperBound;
292 ret = prh[port].LowerBound;
298 /* defaults - case 5 */
300 if (LADSPA_IS_HINT_SAMPLE_RATE(prh[port].HintDescriptor) && !earlier_hint) {
314 LadspaPlugin::set_parameter (uint32_t which, float val)
316 if (which < descriptor->PortCount) {
317 shadow_data[which] = (LADSPA_Data) val;
319 ParameterChanged (Parameter(PluginAutomation, which), val); /* EMIT SIGNAL */
321 if (which < parameter_count() && controls[which]) {
322 controls[which]->Changed ();
327 warning << string_compose (_("illegal parameter number used with plugin \"%1\". This may"
328 "indicate a change in the plugin design, and presets may be"
335 LadspaPlugin::get_parameter (uint32_t which) const
337 if (LADSPA_IS_PORT_INPUT(port_descriptor (which))) {
338 return (float) shadow_data[which];
340 return (float) control_data[which];
345 LadspaPlugin::nth_parameter (uint32_t n, bool& ok) const
351 for (c = 0, x = 0; x < descriptor->PortCount; ++x) {
352 if (LADSPA_IS_PORT_CONTROL (port_descriptor (x))) {
363 LadspaPlugin::get_state()
365 XMLNode *root = new XMLNode(state_node_name());
368 LocaleGuard lg (X_("POSIX"));
370 for (uint32_t i = 0; i < parameter_count(); ++i){
372 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
373 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
375 child = new XMLNode("port");
376 snprintf(buf, sizeof(buf), "%u", i);
377 child->add_property("number", string(buf));
378 snprintf(buf, sizeof(buf), "%+f", shadow_data[i]);
379 child->add_property("value", string(buf));
380 root->add_child_nocopy (*child);
388 LadspaPlugin::save_preset (string name)
390 return Plugin::save_preset (name, "ladspa");
394 LadspaPlugin::set_state(const XMLNode& node)
398 XMLNodeConstIterator iter;
403 LocaleGuard lg (X_("POSIX"));
405 if (node.name() != state_node_name()) {
406 error << _("Bad node sent to LadspaPlugin::set_state") << endmsg;
410 nodes = node.children ("port");
412 for(iter = nodes.begin(); iter != nodes.end(); ++iter){
416 if ((prop = child->property("number")) != 0) {
417 port = prop->value().c_str();
419 warning << _("LADSPA: no ladspa port number") << endmsg;
422 if ((prop = child->property("value")) != 0) {
423 data = prop->value().c_str();
425 warning << _("LADSPA: no ladspa port data") << endmsg;
429 sscanf (port, "%" PRIu32, &port_id);
430 set_parameter (port_id, atof(data));
433 latency_compute_run ();
439 LadspaPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
441 LADSPA_PortRangeHint prh;
443 prh = port_range_hints()[which];
446 if (LADSPA_IS_HINT_BOUNDED_BELOW(prh.HintDescriptor)) {
447 desc.min_unbound = false;
448 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
449 desc.lower = prh.LowerBound * _session.frame_rate();
451 desc.lower = prh.LowerBound;
454 desc.min_unbound = true;
459 if (LADSPA_IS_HINT_BOUNDED_ABOVE(prh.HintDescriptor)) {
460 desc.max_unbound = false;
461 if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
462 desc.upper = prh.UpperBound * _session.frame_rate();
464 desc.upper = prh.UpperBound;
467 desc.max_unbound = true;
468 desc.upper = 4; /* completely arbitrary */
471 if (LADSPA_IS_HINT_INTEGER (prh.HintDescriptor)) {
473 desc.smallstep = 0.1;
474 desc.largestep = 10.0;
476 float delta = desc.upper - desc.lower;
477 desc.step = delta / 1000.0f;
478 desc.smallstep = delta / 10000.0f;
479 desc.largestep = delta/10.0f;
482 desc.toggled = LADSPA_IS_HINT_TOGGLED (prh.HintDescriptor);
483 desc.logarithmic = LADSPA_IS_HINT_LOGARITHMIC (prh.HintDescriptor);
484 desc.sr_dependent = LADSPA_IS_HINT_SAMPLE_RATE (prh.HintDescriptor);
485 desc.integer_step = LADSPA_IS_HINT_INTEGER (prh.HintDescriptor);
487 desc.label = port_names()[which];
494 LadspaPlugin::describe_parameter (Parameter which)
496 if (which.type() == PluginAutomation && which.id() < parameter_count()) {
497 return port_names()[which.id()];
504 LadspaPlugin::signal_latency () const
507 return _user_latency;
510 if (latency_control_port) {
511 return (nframes_t) floor (*latency_control_port);
518 LadspaPlugin::automatable () const
522 for (uint32_t i = 0; i < parameter_count(); ++i){
523 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
524 LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
526 ret.insert (ret.end(), Parameter(PluginAutomation, i));
534 LadspaPlugin::connect_and_run (BufferSet& bufs, uint32_t& in_index, uint32_t& out_index, nframes_t nframes, nframes_t offset)
536 uint32_t port_index = 0;
539 then = get_cycles ();
541 const uint32_t nbufs = bufs.count().n_audio();
543 while (port_index < parameter_count()) {
544 if (LADSPA_IS_PORT_AUDIO (port_descriptor(port_index))) {
545 if (LADSPA_IS_PORT_INPUT (port_descriptor(port_index))) {
546 const size_t index = min(in_index, nbufs - 1);
547 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
548 //cerr << this << ' ' << name() << " @ " << offset << " inport " << in_index << " = buf "
549 // << min((uint32_t)in_index,nbufs) << " = " << &bufs[min((uint32_t)in_index,nbufs)][offset] << endl;
553 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
554 const size_t index = min(out_index,nbufs - 1);
555 connect_port (port_index, bufs.get_audio(index).data(nframes, offset));
556 // cerr << this << ' ' << name() << " @ " << offset << " outport " << out_index << " = buf "
557 // << min((uint32_t)out_index,nbufs) << " = " << &bufs[min((uint32_t)out_index,nbufs)][offset] << endl;
564 run_in_place (nframes);
566 set_cycles ((uint32_t) (now - then));
572 LadspaPlugin::parameter_is_control (uint32_t param) const
574 return LADSPA_IS_PORT_CONTROL(port_descriptor (param));
578 LadspaPlugin::parameter_is_audio (uint32_t param) const
580 return LADSPA_IS_PORT_AUDIO(port_descriptor (param));
584 LadspaPlugin::parameter_is_output (uint32_t param) const
586 return LADSPA_IS_PORT_OUTPUT(port_descriptor (param));
590 LadspaPlugin::parameter_is_input (uint32_t param) const
592 return LADSPA_IS_PORT_INPUT(port_descriptor (param));
596 LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
599 if (param < parameter_count()) {
600 snprintf (buf, len, "%.3f", get_parameter (param));
608 LadspaPlugin::run_in_place (nframes_t nframes)
610 for (uint32_t i = 0; i < parameter_count(); ++i) {
611 if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
612 control_data[i] = shadow_data[i];
615 descriptor->run (handle, nframes);
619 LadspaPlugin::latency_compute_run ()
621 if (!latency_control_port) {
625 /* we need to run the plugin so that it can set its latency
631 uint32_t port_index = 0;
632 uint32_t in_index = 0;
633 uint32_t out_index = 0;
634 const nframes_t bufsize = 1024;
635 LADSPA_Data buffer[bufsize];
637 memset(buffer,0,sizeof(LADSPA_Data)*bufsize);
639 /* Note that we've already required that plugins
640 be able to handle in-place processing.
645 while (port_index < parameter_count()) {
646 if (LADSPA_IS_PORT_AUDIO (port_descriptor (port_index))) {
647 if (LADSPA_IS_PORT_INPUT (port_descriptor (port_index))) {
648 connect_port (port_index, buffer);
650 } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
651 connect_port (port_index, buffer);
658 run_in_place (bufsize);
663 LadspaPluginInfo::load (Session& session)
669 if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
670 error << string_compose(_("LADSPA: cannot load module from \"%1\""), path) << endmsg;
671 error << dlerror() << endmsg;
673 plugin.reset (new LadspaPlugin (module, session.engine(), session, index, session.frame_rate()));
676 plugin->set_info(PluginInfoPtr(new LadspaPluginInfo(*this)));
680 catch (failed_constructor &err) {
681 return PluginPtr ((Plugin*) 0);