2 Copyright (C) 2004 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.
26 #include <cstdio> // so libraptor doesn't complain
29 #include <cstring> // for memmove
33 #include <glibmm/miscutils.h>
38 #include "pbd/compose.h"
39 #include "pbd/error.h"
40 #include "pbd/pathscanner.h"
41 #include "pbd/xml++.h"
45 #include "ardour/session.h"
46 #include "ardour/audioengine.h"
47 #include "ardour/filesystem_paths.h"
48 #include "ardour/windows_vst_plugin.h"
49 #include "ardour/buffer_set.h"
50 #include "ardour/audio_buffer.h"
51 #include "ardour/midi_buffer.h"
53 #include "pbd/stl_delete.h"
59 using namespace ARDOUR;
64 WindowsVSTPlugin::WindowsVSTPlugin (AudioEngine& e, Session& session, FSTHandle* h)
69 if ((_fst = fst_instantiate (handle, Session::vst_callback, this)) == 0) {
70 throw failed_constructor();
73 _plugin = _fst->plugin;
76 /* set rate and blocksize */
78 _plugin->dispatcher (_plugin, effSetSampleRate, 0, 0, NULL,
79 (float) session.frame_rate());
80 _plugin->dispatcher (_plugin, effSetBlockSize, 0,
81 session.get_block_size(), NULL, 0.0f);
83 /* set program to zero */
85 _plugin->dispatcher (_plugin, effSetProgram, 0, 0, NULL, 0.0f);
87 // Plugin::setup_controls ();
90 WindowsVSTPlugin::WindowsVSTPlugin (const WindowsVSTPlugin &other)
93 handle = other.handle;
95 if ((_fst = fst_instantiate (handle, Session::vst_callback, this)) == 0) {
96 throw failed_constructor();
98 _plugin = _fst->plugin;
100 // Plugin::setup_controls ();
103 WindowsVSTPlugin::~WindowsVSTPlugin ()
110 WindowsVSTPlugin::set_block_size (pframes_t nframes)
113 _plugin->dispatcher (_plugin, effSetBlockSize, 0, nframes, NULL, 0.0f);
119 WindowsVSTPlugin::default_value (uint32_t port)
125 WindowsVSTPlugin::set_parameter (uint32_t which, float val)
127 _plugin->setParameter (_plugin, which, val);
129 if (_fst->want_program == -1 && _fst->want_chunk == 0) {
130 /* Heinous hack: Plugin::set_parameter below updates the `modified' status of the
131 current preset, but if _fst->want_program is not -1 then there is a preset
132 setup pending or in progress, which we don't want any `modified' updates
133 to happen for. So we only do this if _fst->want_program is -1.
135 Plugin::set_parameter (which, val);
140 WindowsVSTPlugin::get_parameter (uint32_t which) const
142 return _plugin->getParameter (_plugin, which);
147 WindowsVSTPlugin::nth_parameter (uint32_t n, bool& ok) const
153 /** Get VST chunk as base64-encoded data.
154 * @param single true for single program, false for all programs.
155 * @return 0-terminated base64-encoded data; must be passed to g_free () by caller.
158 WindowsVSTPlugin::get_chunk (bool single) const
161 int32_t data_size = _plugin->dispatcher (_plugin, 23 /* effGetChunk */, single ? 1 : 0, 0, &data, 0);
162 if (data_size == 0) {
166 return g_base64_encode (data, data_size);
169 /** Set VST chunk from base64-encoded data.
170 * @param 0-terminated base64-encoded data.
171 * @param single true for single program, false for all programs.
172 * @return 0 on success, non-0 on failure
175 WindowsVSTPlugin::set_chunk (gchar const * data, bool single)
178 guchar* raw_data = g_base64_decode (data, &size);
179 int const r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0);
185 WindowsVSTPlugin::add_state (XMLNode* root) const
187 LocaleGuard lg (X_("POSIX"));
189 if (_fst->current_program != -1) {
191 snprintf (buf, sizeof (buf), "%d", _fst->current_program);
192 root->add_property ("current-program", buf);
195 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
197 gchar* data = get_chunk (false);
202 /* store information */
204 XMLNode* chunk_node = new XMLNode (X_("chunk"));
206 chunk_node->add_content (data);
209 root->add_child_nocopy (*chunk_node);
213 XMLNode* parameters = new XMLNode ("parameters");
215 for (int32_t n = 0; n < _plugin->numParams; ++n) {
218 snprintf (index, sizeof (index), "param_%d", n);
219 snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n));
220 parameters->add_property (index, val);
223 root->add_child_nocopy (*parameters);
228 WindowsVSTPlugin::set_state (const XMLNode& node, int version)
230 LocaleGuard lg (X_("POSIX"));
232 if (node.name() != state_node_name()) {
233 error << _("Bad node sent to WindowsVSTPlugin::set_state") << endmsg;
237 const XMLProperty* prop;
239 if ((prop = node.property ("current-program")) != 0) {
240 _fst->want_program = atoi (prop->value().c_str());
246 if ((child = find_named_node (node, X_("chunk"))) != 0) {
248 XMLPropertyList::const_iterator i;
249 XMLNodeList::const_iterator n;
252 for (n = child->children ().begin (); n != child->children ().end (); ++n) {
253 if ((*n)->is_content ()) {
254 /* XXX: this may be dubious for the same reasons that we delay
255 execution of load_preset.
257 ret = set_chunk ((*n)->content().c_str(), false);
261 } else if ((child = find_named_node (node, X_("parameters"))) != 0) {
263 XMLPropertyList::const_iterator i;
265 for (i = child->properties().begin(); i != child->properties().end(); ++i) {
269 sscanf ((*i)->name().c_str(), "param_%d", ¶m);
270 sscanf ((*i)->value().c_str(), "%f", &val);
272 _plugin->setParameter (_plugin, param, val);
275 /* program number is not knowable */
277 _fst->current_program = -1;
283 Plugin::set_state (node, version);
288 WindowsVSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
290 VstParameterProperties prop;
292 desc.min_unbound = false;
293 desc.max_unbound = false;
296 if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) {
298 #ifdef VESTIGE_COMPLETE
300 /* i have yet to find or hear of a VST plugin that uses this */
302 if (prop.flags & kVstParameterUsesIntegerMinMax) {
303 desc.lower = prop.minInteger;
304 desc.upper = prop.maxInteger;
310 if (prop.flags & kVstParameterUsesIntStep) {
312 desc.step = prop.stepInteger;
313 desc.smallstep = prop.stepInteger;
314 desc.largestep = prop.stepInteger;
316 } else if (prop.flags & kVstParameterUsesFloatStep) {
318 desc.step = prop.stepFloat;
319 desc.smallstep = prop.smallStepFloat;
320 desc.largestep = prop.largeStepFloat;
324 float range = desc.upper - desc.lower;
326 desc.step = range / 100.0f;
327 desc.smallstep = desc.step / 2.0f;
328 desc.largestep = desc.step * 10.0f;
331 desc.toggled = prop.flags & kVstParameterIsSwitch;
332 desc.logarithmic = false;
333 desc.sr_dependent = false;
334 desc.label = prop.label;
344 _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0);
347 desc.integer_step = false;
351 desc.smallstep = 0.005f;
352 desc.largestep = 0.1f;
353 desc.toggled = false;
354 desc.logarithmic = false;
355 desc.sr_dependent = false;
362 WindowsVSTPlugin::load_preset (PresetRecord r)
367 s = load_user_preset (r);
369 s = load_plugin_preset (r);
373 Plugin::load_preset (r);
380 WindowsVSTPlugin::load_plugin_preset (PresetRecord r)
382 /* This is a plugin-provided preset.
383 We can't dispatch directly here; too many plugins expects only one GUI thread.
386 /* Extract the index of this preset from the URI */
389 int const p = sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
392 _fst->want_program = index;
397 WindowsVSTPlugin::load_user_preset (PresetRecord r)
399 /* This is a user preset; we load it, and this code also knows about the
400 non-direct-dispatch thing.
403 boost::shared_ptr<XMLTree> t (presets_tree ());
408 XMLNode* root = t->root ();
410 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
412 XMLProperty* uri = (*i)->property (X_("uri"));
413 XMLProperty* label = (*i)->property (X_("label"));
418 if (label->value() != r.label) {
422 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
424 /* Load a user preset chunk from our XML file and send it via a circuitous route to the plugin */
426 if (_fst->wanted_chunk) {
427 g_free (_fst->wanted_chunk);
430 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
431 if ((*j)->is_content ()) {
432 /* we can't dispatch directly here; too many plugins expect only one GUI thread */
434 guchar* raw_data = g_base64_decode ((*j)->content().c_str(), &size);
435 _fst->wanted_chunk = raw_data;
436 _fst->wanted_chunk_size = size;
437 _fst->want_chunk = 1;
446 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
447 if ((*j)->name() == X_("Parameter")) {
449 XMLProperty* index = (*j)->property (X_("index"));
450 XMLProperty* value = (*j)->property (X_("value"));
455 set_parameter (atoi (index->value().c_str()), atof (value->value().c_str ()));
467 WindowsVSTPlugin::do_save_preset (string name)
469 boost::shared_ptr<XMLTree> t (presets_tree ());
475 /* XXX: use of _presets.size() + 1 for the unique ID here is dubious at best */
476 string const uri = string_compose (X_("VST:%1:%2"), unique_id (), _presets.size() + 1);
478 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
480 p = new XMLNode (X_("ChunkPreset"));
481 p->add_property (X_("uri"), uri);
482 p->add_property (X_("label"), name);
483 gchar* data = get_chunk (true);
484 p->add_content (string (data));
489 p = new XMLNode (X_("Preset"));
490 p->add_property (X_("uri"), uri);
491 p->add_property (X_("label"), name);
493 for (uint32_t i = 0; i < parameter_count(); ++i) {
494 if (parameter_is_input (i)) {
495 XMLNode* c = new XMLNode (X_("Parameter"));
496 c->add_property (X_("index"), string_compose ("%1", i));
497 c->add_property (X_("value"), string_compose ("%1", get_parameter (i)));
498 p->add_child_nocopy (*c);
504 t->root()->add_child_nocopy (*p);
506 sys::path f = ARDOUR::user_config_directory ();
508 f /= presets_file ();
510 t->write (f.to_string ());
515 WindowsVSTPlugin::do_remove_preset (string name)
517 boost::shared_ptr<XMLTree> t (presets_tree ());
522 t->root()->remove_nodes_and_delete (X_("label"), name);
524 sys::path f = ARDOUR::user_config_directory ();
526 f /= presets_file ();
528 t->write (f.to_string ());
532 WindowsVSTPlugin::describe_parameter (Evoral::Parameter param)
535 _plugin->dispatcher (_plugin, effGetParamName, param.id(), 0, name, 0);
540 WindowsVSTPlugin::signal_latency () const
543 return _user_latency;
546 return *((framecnt_t *) (((char *) &_plugin->flags) + 12)); /* initialDelay */
549 set<Evoral::Parameter>
550 WindowsVSTPlugin::automatable () const
552 set<Evoral::Parameter> ret;
554 for (uint32_t i = 0; i < parameter_count(); ++i){
555 ret.insert (ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
562 WindowsVSTPlugin::connect_and_run (BufferSet& bufs,
563 ChanMapping in_map, ChanMapping out_map,
564 pframes_t nframes, framecnt_t offset)
566 Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
568 float *ins[_plugin->numInputs];
569 float *outs[_plugin->numOutputs];
572 const uint32_t nbufs = bufs.count().n_audio();
575 for (i = 0; i < (int32_t) _plugin->numInputs; ++i) {
576 ins[i] = bufs.get_audio(min((uint32_t) in_index, nbufs - 1)).data() + offset;
581 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
582 outs[i] = bufs.get_audio(min((uint32_t) out_index, nbufs - 1)).data() + offset;
584 /* unbelievably, several VST plugins still rely on Cubase
585 behaviour and do not silence the buffer in processReplacing
586 when they have no output.
589 // memset (outs[i], 0, sizeof (Sample) * nframes);
594 if (bufs.count().n_midi() > 0) {
595 VstEvents* v = bufs.get_vst_midi (0);
596 _plugin->dispatcher (_plugin, effProcessEvents, 0, 0, v, 0);
599 /* we already know it can support processReplacing */
600 _plugin->processReplacing (_plugin, ins, outs, nframes);
606 WindowsVSTPlugin::deactivate ()
608 _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f);
612 WindowsVSTPlugin::activate ()
614 _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f);
618 WindowsVSTPlugin::unique_id() const
622 snprintf (buf, sizeof (buf), "%d", *((int32_t*) &_plugin->uniqueID));
628 WindowsVSTPlugin::name () const
634 WindowsVSTPlugin::maker () const
636 return _info->creator.c_str();
640 WindowsVSTPlugin::label () const
646 WindowsVSTPlugin::parameter_count() const
648 return _plugin->numParams;
652 WindowsVSTPlugin::has_editor () const
654 return _plugin->flags & effFlagsHasEditor;
658 WindowsVSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
662 _plugin->dispatcher (_plugin, 7 /* effGetParamDisplay */, param, 0, buf, 0);
664 if (buf[0] == '\0') {
669 while (*first_nonws && isspace (*first_nonws)) {
672 if (*first_nonws == '\0') {
676 memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1);
680 WindowsVSTPluginInfo::load (Session& session)
685 if (Config->get_use_windows_vst ()) {
688 handle = fst_load(path.c_str());
690 if ( (int)handle == -1) {
691 error << string_compose(_("VST: cannot load module from \"%1\""), path) << endmsg;
693 plugin.reset (new WindowsVSTPlugin (session.engine(), session, handle));
696 error << _("You asked ardour to not use any VST plugins") << endmsg;
697 return PluginPtr ((Plugin*) 0);
700 plugin->set_info(PluginInfoPtr(new WindowsVSTPluginInfo(*this)));
704 catch (failed_constructor &err) {
705 return PluginPtr ((Plugin*) 0);
710 WindowsVSTPlugin::find_presets ()
712 /* Built-in presets */
714 int const vst_version = _plugin->dispatcher (_plugin, effGetVstVersion, 0, 0, NULL, 0);
715 for (int i = 0; i < _plugin->numPrograms; ++i) {
716 PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", false);
718 if (vst_version >= 2) {
720 if (_plugin->dispatcher (_plugin, 29, i, 0, buf, 0) == 1) {
723 r.label = string_compose (_("Preset %1"), i);
726 r.label = string_compose (_("Preset %1"), i);
729 _presets.insert (make_pair (r.uri, r));
732 /* User presets from our XML file */
734 boost::shared_ptr<XMLTree> t (presets_tree ());
737 XMLNode* root = t->root ();
738 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
740 XMLProperty* uri = (*i)->property (X_("uri"));
741 XMLProperty* label = (*i)->property (X_("label"));
746 PresetRecord r (uri->value(), label->value(), true);
747 _presets.insert (make_pair (r.uri, r));
753 /** @return XMLTree with our user presets; could be a new one if no existing
754 * one was found, or 0 if one was present but badly-formatted.
757 WindowsVSTPlugin::presets_tree () const
759 XMLTree* t = new XMLTree;
761 sys::path p = ARDOUR::user_config_directory ();
764 if (!is_directory (p)) {
765 create_directory (p);
768 p /= presets_file ();
771 t->set_root (new XMLNode (X_("WindowsVSTPresets")));
775 t->set_filename (p.to_string ());
784 /** @return Index of the first user preset in our lists */
786 WindowsVSTPlugin::first_user_preset_index () const
788 return _plugin->numPrograms;
792 WindowsVSTPlugin::presets_file () const
794 return string_compose ("vst-%1", unique_id ());
797 WindowsVSTPluginInfo::WindowsVSTPluginInfo()
799 type = ARDOUR::Windows_VST;