2 Copyright (C) 2010 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 #include "pbd/locale_guard.h"
21 #include "pbd/pathscanner.h"
22 #include "ardour/vst_plugin.h"
23 #include "ardour/vestige/aeffectx.h"
24 #include "ardour/session.h"
25 #include "ardour/vst_types.h"
26 #include "ardour/filesystem_paths.h"
27 #include "ardour/audio_buffer.h"
33 using namespace ARDOUR;
35 VSTPlugin::VSTPlugin (AudioEngine& engine, Session& session, VSTHandle* handle)
36 : Plugin (engine, session)
44 VSTPlugin::~VSTPlugin ()
50 VSTPlugin::set_plugin (AEffect* e)
55 /* set rate and blocksize */
57 _plugin->dispatcher (_plugin, effSetSampleRate, 0, 0, NULL, (float) _session.frame_rate());
58 _plugin->dispatcher (_plugin, effSetBlockSize, 0, _session.get_block_size(), NULL, 0.0f);
60 /* set program to zero */
62 _plugin->dispatcher (_plugin, effSetProgram, 0, 0, NULL, 0.0f);
66 VSTPlugin::deactivate ()
68 _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f);
72 VSTPlugin::activate ()
74 _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f);
78 VSTPlugin::set_block_size (pframes_t nframes)
81 _plugin->dispatcher (_plugin, effSetBlockSize, 0, nframes, NULL, 0.0f);
87 VSTPlugin::default_value (uint32_t)
93 VSTPlugin::get_parameter (uint32_t which) const
95 return _plugin->getParameter (_plugin, which);
99 VSTPlugin::set_parameter (uint32_t which, float val)
101 _plugin->setParameter (_plugin, which, val);
102 Plugin::set_parameter (which, val);
106 VSTPlugin::nth_parameter (uint32_t n, bool& ok) const
112 /** Get VST chunk as base64-encoded data.
113 * @param single true for single program, false for all programs.
114 * @return 0-terminated base64-encoded data; must be passed to g_free () by caller.
117 VSTPlugin::get_chunk (bool single) const
120 int32_t data_size = _plugin->dispatcher (_plugin, 23 /* effGetChunk */, single ? 1 : 0, 0, &data, 0);
121 if (data_size == 0) {
125 return g_base64_encode (data, data_size);
128 /** Set VST chunk from base64-encoded data.
129 * @param 0-terminated base64-encoded data.
130 * @param single true for single program, false for all programs.
131 * @return 0 on success, non-0 on failure
134 VSTPlugin::set_chunk (gchar const * data, bool single)
137 guchar* raw_data = g_base64_decode (data, &size);
138 int const r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0);
144 VSTPlugin::add_state (XMLNode* root) const
146 LocaleGuard lg (X_("POSIX"));
148 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
150 gchar* data = get_chunk (false);
155 /* store information */
157 XMLNode* chunk_node = new XMLNode (X_("chunk"));
159 chunk_node->add_content (data);
162 root->add_child_nocopy (*chunk_node);
166 XMLNode* parameters = new XMLNode ("parameters");
168 for (int32_t n = 0; n < _plugin->numParams; ++n) {
171 snprintf (index, sizeof (index), "param-%d", n);
172 snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n));
173 parameters->add_property (index, val);
176 root->add_child_nocopy (*parameters);
181 VSTPlugin::set_state (const XMLNode& node, int version)
183 LocaleGuard lg (X_("POSIX"));
185 if (node.name() != state_node_name()) {
186 error << _("Bad node sent to VSTPlugin::set_state") << endmsg;
193 if ((child = find_named_node (node, X_("chunk"))) != 0) {
195 XMLPropertyList::const_iterator i;
196 XMLNodeList::const_iterator n;
198 for (n = child->children ().begin (); n != child->children ().end (); ++n) {
199 if ((*n)->is_content ()) {
200 /* XXX: this may be dubious for the same reasons that we delay
201 execution of load_preset.
203 ret = set_chunk ((*n)->content().c_str(), false);
207 } else if ((child = find_named_node (node, X_("parameters"))) != 0) {
209 XMLPropertyList::const_iterator i;
211 for (i = child->properties().begin(); i != child->properties().end(); ++i) {
215 sscanf ((*i)->name().c_str(), "param-%d", ¶m);
216 sscanf ((*i)->value().c_str(), "%f", &val);
218 _plugin->setParameter (_plugin, param, val);
225 Plugin::set_state (node, version);
231 VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
233 VstParameterProperties prop;
235 desc.min_unbound = false;
236 desc.max_unbound = false;
239 if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) {
241 #ifdef VESTIGE_COMPLETE
243 /* i have yet to find or hear of a VST plugin that uses this */
245 if (prop.flags & kVstParameterUsesIntegerMinMax) {
246 desc.lower = prop.minInteger;
247 desc.upper = prop.maxInteger;
253 if (prop.flags & kVstParameterUsesIntStep) {
255 desc.step = prop.stepInteger;
256 desc.smallstep = prop.stepInteger;
257 desc.largestep = prop.stepInteger;
259 } else if (prop.flags & kVstParameterUsesFloatStep) {
261 desc.step = prop.stepFloat;
262 desc.smallstep = prop.smallStepFloat;
263 desc.largestep = prop.largeStepFloat;
267 float range = desc.upper - desc.lower;
269 desc.step = range / 100.0f;
270 desc.smallstep = desc.step / 2.0f;
271 desc.largestep = desc.step * 10.0f;
274 desc.toggled = prop.flags & kVstParameterIsSwitch;
275 desc.logarithmic = false;
276 desc.sr_dependent = false;
277 desc.label = prop.label;
287 _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0);
290 desc.integer_step = false;
294 desc.smallstep = 0.005f;
295 desc.largestep = 0.1f;
296 desc.toggled = false;
297 desc.logarithmic = false;
298 desc.sr_dependent = false;
305 VSTPlugin::load_preset (PresetRecord r)
310 s = load_user_preset (r);
312 s = load_plugin_preset (r);
316 Plugin::load_preset (r);
323 VSTPlugin::load_plugin_preset (PresetRecord r)
325 /* This is a plugin-provided preset.
326 We can't dispatch directly here; too many plugins expects only one GUI thread.
329 /* Extract the index of this preset from the URI */
333 int const p = sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
336 sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
339 _state->want_program = index;
344 VSTPlugin::load_user_preset (PresetRecord r)
346 /* This is a user preset; we load it, and this code also knows about the
347 non-direct-dispatch thing.
350 boost::shared_ptr<XMLTree> t (presets_tree ());
355 XMLNode* root = t->root ();
357 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
358 XMLProperty* label = (*i)->property (X_("label"));
362 if (label->value() != r.label) {
366 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
368 /* Load a user preset chunk from our XML file and send it via a circuitous route to the plugin */
370 if (_state->wanted_chunk) {
371 g_free (_state->wanted_chunk);
374 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
375 if ((*j)->is_content ()) {
376 /* we can't dispatch directly here; too many plugins expect only one GUI thread */
378 guchar* raw_data = g_base64_decode ((*j)->content().c_str(), &size);
379 _state->wanted_chunk = raw_data;
380 _state->wanted_chunk_size = size;
381 _state->want_chunk = 1;
390 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
391 if ((*j)->name() == X_("Parameter")) {
392 XMLProperty* index = (*j)->property (X_("index"));
393 XMLProperty* value = (*j)->property (X_("value"));
398 set_parameter (atoi (index->value().c_str()), atof (value->value().c_str ()));
408 VSTPlugin::do_save_preset (string name)
410 boost::shared_ptr<XMLTree> t (presets_tree ());
416 /* XXX: use of _presets.size() + 1 for the unique ID here is dubious at best */
417 string const uri = string_compose (X_("VST:%1:%2"), unique_id (), _presets.size() + 1);
419 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
421 p = new XMLNode (X_("ChunkPreset"));
422 p->add_property (X_("uri"), uri);
423 p->add_property (X_("label"), name);
424 gchar* data = get_chunk (true);
425 p->add_content (string (data));
431 p = new XMLNode (X_("Preset"));
432 p->add_property (X_("uri"), uri);
433 p->add_property (X_("label"), name);
435 for (uint32_t i = 0; i < parameter_count(); ++i) {
436 if (parameter_is_input (i)) {
437 XMLNode* c = new XMLNode (X_("Parameter"));
438 c->add_property (X_("index"), string_compose ("%1", i));
439 c->add_property (X_("value"), string_compose ("%1", get_parameter (i)));
440 p->add_child_nocopy (*c);
445 t->root()->add_child_nocopy (*p);
447 sys::path f = ARDOUR::user_config_directory ();
449 f /= presets_file ();
451 t->write (f.to_string ());
456 VSTPlugin::do_remove_preset (string name)
458 boost::shared_ptr<XMLTree> t (presets_tree ());
463 t->root()->remove_nodes_and_delete (X_("label"), name);
465 sys::path f = ARDOUR::user_config_directory ();
467 f /= presets_file ();
469 t->write (f.to_string ());
473 VSTPlugin::describe_parameter (Evoral::Parameter param)
475 char name[64] = "Unkown";
476 _plugin->dispatcher (_plugin, effGetParamName, param.id(), 0, name, 0);
481 VSTPlugin::signal_latency () const
484 return _user_latency;
487 return *((int32_t *) (((char *) &_plugin->flags) + 12)); /* initialDelay */
490 set<Evoral::Parameter>
491 VSTPlugin::automatable () const
493 set<Evoral::Parameter> ret;
495 for (uint32_t i = 0; i < parameter_count(); ++i) {
496 ret.insert (ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
503 VSTPlugin::connect_and_run (BufferSet& bufs,
504 ChanMapping in_map, ChanMapping out_map,
505 pframes_t nframes, framecnt_t offset)
507 Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
509 float *ins[_plugin->numInputs];
510 float *outs[_plugin->numOutputs];
513 const uint32_t nbufs = bufs.count().n_audio();
516 for (i = 0; i < (int32_t) _plugin->numInputs; ++i) {
517 ins[i] = bufs.get_audio(min((uint32_t) in_index, nbufs - 1)).data() + offset;
522 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
523 outs[i] = bufs.get_audio(min((uint32_t) out_index, nbufs - 1)).data() + offset;
527 if (bufs.count().n_midi() > 0) {
528 VstEvents* v = bufs.get_vst_midi (0);
529 _plugin->dispatcher (_plugin, effProcessEvents, 0, 0, v, 0);
532 /* we already know it can support processReplacing */
533 _plugin->processReplacing (_plugin, ins, outs, nframes);
539 VSTPlugin::unique_id () const
543 snprintf (buf, sizeof (buf), "%d", _plugin->uniqueID);
550 VSTPlugin::name () const
552 return _handle->name;
556 VSTPlugin::maker () const
558 return _info->creator.c_str();
562 VSTPlugin::label () const
564 return _handle->name;
568 VSTPlugin::parameter_count () const
570 return _plugin->numParams;
574 VSTPlugin::has_editor () const
576 return _plugin->flags & effFlagsHasEditor;
580 VSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t /*len*/) const
584 _plugin->dispatcher (_plugin, 7 /* effGetParamDisplay */, param, 0, buf, 0);
586 if (buf[0] == '\0') {
591 while (*first_nonws && isspace (*first_nonws)) {
595 if (*first_nonws == '\0') {
599 memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1);
603 VSTPlugin::find_presets ()
605 /* Built-in presets */
607 int const vst_version = _plugin->dispatcher (_plugin, effGetVstVersion, 0, 0, NULL, 0);
608 for (int i = 0; i < _plugin->numPrograms; ++i) {
609 PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", false);
611 if (vst_version >= 2) {
613 if (_plugin->dispatcher (_plugin, 29, i, 0, buf, 0) == 1) {
616 r.label = string_compose (_("Preset %1"), i);
619 r.label = string_compose (_("Preset %1"), i);
622 _presets.insert (make_pair (r.uri, r));
625 /* User presets from our XML file */
627 boost::shared_ptr<XMLTree> t (presets_tree ());
630 XMLNode* root = t->root ();
631 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
633 XMLProperty* uri = (*i)->property (X_("uri"));
634 XMLProperty* label = (*i)->property (X_("label"));
639 PresetRecord r (uri->value(), label->value(), true);
640 _presets.insert (make_pair (r.uri, r));
646 /** @return XMLTree with our user presets; could be a new one if no existing
647 * one was found, or 0 if one was present but badly-formatted.
650 VSTPlugin::presets_tree () const
652 XMLTree* t = new XMLTree;
654 sys::path p = ARDOUR::user_config_directory ();
657 if (!is_directory (p)) {
658 create_directory (p);
661 p /= presets_file ();
664 t->set_root (new XMLNode (X_("VSTPresets")));
668 t->set_filename (p.to_string ());
677 /** @return Index of the first user preset in our lists */
679 VSTPlugin::first_user_preset_index () const
681 return _plugin->numPrograms;
685 VSTPlugin::presets_file () const
687 return string_compose ("vst-%1", unique_id ());