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.
21 #include <glib/gstdio.h>
23 #include <glibmm/fileutils.h>
24 #include <glibmm/miscutils.h>
26 #include "pbd/floating.h"
27 #include "pbd/locale_guard.h"
29 #include "ardour/vst_plugin.h"
30 #include "ardour/vestige/aeffectx.h"
31 #include "ardour/session.h"
32 #include "ardour/vst_types.h"
33 #include "ardour/filesystem_paths.h"
34 #include "ardour/audio_buffer.h"
39 #define MAX_VST_BUFFERSIZE 8192
44 using namespace ARDOUR;
46 VSTPlugin::VSTPlugin (AudioEngine& engine, Session& session, VSTHandle* handle)
47 : Plugin (engine, session)
53 , _audio_out_buf_cnt (0)
59 VSTPlugin::~VSTPlugin ()
62 for (uint32_t i = 0; i < _audio_out_buf_cnt; ++i) {
63 free (_audio_out_buf[i]);
65 free (_audio_out_buf);
70 VSTPlugin::set_plugin (AEffect* e)
75 /* set rate and blocksize */
77 _plugin->dispatcher (_plugin, effSetSampleRate, 0, 0, NULL, (float) _session.frame_rate());
78 _plugin->dispatcher (_plugin, effSetBlockSize, 0, _session.get_block_size(), NULL, 0.0f);
80 if (_audio_out_buf_cnt != _plugin->numOutputs) {
81 for (uint32_t i = 0; i < _audio_out_buf_cnt; ++i) {
82 free (_audio_out_buf[i]);
84 free (_audio_out_buf);
85 _audio_out_buf_cnt = _plugin->numOutputs;
86 _audio_out_buf = (float**) malloc (_audio_out_buf_cnt * sizeof(float*));
87 /* think. Should this be part of the BufferSet ?
88 * in which case it would be dynamically sized, but then again
89 * every BufferSet would have N[?] extra VST audio buffers.
91 for (uint32_t i = 0; i < _audio_out_buf_cnt; ++i) {
92 _audio_out_buf[i] = (float*) malloc (MAX_VST_BUFFERSIZE * sizeof(float));
99 VSTPlugin::deactivate ()
101 _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f);
105 VSTPlugin::activate ()
107 _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f);
111 VSTPlugin::set_block_size (pframes_t nframes)
114 _plugin->dispatcher (_plugin, effSetBlockSize, 0, nframes, NULL, 0.0f);
120 VSTPlugin::default_value (uint32_t)
126 VSTPlugin::get_parameter (uint32_t which) const
128 return _plugin->getParameter (_plugin, which);
132 VSTPlugin::set_parameter (uint32_t which, float newval)
134 float oldval = get_parameter (which);
136 if (PBD::floateq (oldval, newval, 1)) {
140 _plugin->setParameter (_plugin, which, newval);
142 float curval = get_parameter (which);
144 if (!PBD::floateq (curval, oldval, 1)) {
145 /* value has changed, follow rest of the notification path */
146 Plugin::set_parameter (which, newval);
151 VSTPlugin::nth_parameter (uint32_t n, bool& ok) const
157 /** Get VST chunk as base64-encoded data.
158 * @param single true for single program, false for all programs.
159 * @return 0-terminated base64-encoded data; must be passed to g_free () by caller.
162 VSTPlugin::get_chunk (bool single) const
165 int32_t data_size = _plugin->dispatcher (_plugin, 23 /* effGetChunk */, single ? 1 : 0, 0, &data, 0);
166 if (data_size == 0) {
170 return g_base64_encode (data, data_size);
173 /** Set VST chunk from base64-encoded data.
174 * @param 0-terminated base64-encoded data.
175 * @param single true for single program, false for all programs.
176 * @return 0 on success, non-0 on failure
179 VSTPlugin::set_chunk (gchar const * data, bool single)
182 guchar* raw_data = g_base64_decode (data, &size);
183 int const r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0);
189 VSTPlugin::add_state (XMLNode* root) const
191 LocaleGuard lg (X_("C"));
193 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
195 gchar* data = get_chunk (false);
200 /* store information */
202 XMLNode* chunk_node = new XMLNode (X_("chunk"));
204 chunk_node->add_content (data);
207 root->add_child_nocopy (*chunk_node);
211 XMLNode* parameters = new XMLNode ("parameters");
213 for (int32_t n = 0; n < _plugin->numParams; ++n) {
216 snprintf (index, sizeof (index), "param-%d", n);
217 snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n));
218 parameters->add_property (index, val);
221 root->add_child_nocopy (*parameters);
226 VSTPlugin::set_state (const XMLNode& node, int version)
228 LocaleGuard lg (X_("C"));
231 if (node.name() != state_node_name()) {
232 error << _("Bad node sent to VSTPlugin::set_state") << endmsg;
236 #ifndef NO_PLUGIN_STATE
239 if ((child = find_named_node (node, X_("chunk"))) != 0) {
241 XMLPropertyList::const_iterator i;
242 XMLNodeList::const_iterator n;
244 for (n = child->children ().begin (); n != child->children ().end (); ++n) {
245 if ((*n)->is_content ()) {
246 /* XXX: this may be dubious for the same reasons that we delay
247 execution of load_preset.
249 ret = set_chunk ((*n)->content().c_str(), false);
253 } else if ((child = find_named_node (node, X_("parameters"))) != 0) {
255 XMLPropertyList::const_iterator i;
257 for (i = child->properties().begin(); i != child->properties().end(); ++i) {
261 sscanf ((*i)->name().c_str(), "param-%d", ¶m);
262 sscanf ((*i)->value().c_str(), "%f", &val);
264 _plugin->setParameter (_plugin, param, val);
272 Plugin::set_state (node, version);
278 VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
280 VstParameterProperties prop;
282 memset (&prop, 0, sizeof (VstParameterProperties));
283 desc.min_unbound = false;
284 desc.max_unbound = false;
287 if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) {
289 /* i have yet to find or hear of a VST plugin that uses this */
290 /* RG: faust2vsti does use this :) */
292 if (prop.flags & kVstParameterUsesIntegerMinMax) {
293 desc.lower = prop.minInteger;
294 desc.upper = prop.maxInteger;
300 if (prop.flags & kVstParameterUsesIntStep) {
302 desc.step = prop.stepInteger;
303 desc.smallstep = prop.stepInteger;
304 desc.largestep = prop.stepInteger;
306 } else if (prop.flags & kVstParameterUsesFloatStep) {
308 desc.step = prop.stepFloat;
309 desc.smallstep = prop.smallStepFloat;
310 desc.largestep = prop.largeStepFloat;
314 float range = desc.upper - desc.lower;
316 desc.step = range / 100.0f;
317 desc.smallstep = desc.step / 2.0f;
318 desc.largestep = desc.step * 10.0f;
321 if (strlen(prop.label) == 0) {
322 _plugin->dispatcher (_plugin, effGetParamName, which, 0, prop.label, 0);
325 desc.toggled = prop.flags & kVstParameterIsSwitch;
326 desc.logarithmic = false;
327 desc.sr_dependent = false;
328 desc.label = prop.label;
335 /* some VST plugins expect this buffer to be zero-filled */
336 memset (label, 0, sizeof (label));
338 _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0);
341 desc.integer_step = false;
345 desc.smallstep = 0.005f;
346 desc.largestep = 0.1f;
347 desc.toggled = false;
348 desc.logarithmic = false;
349 desc.sr_dependent = false;
356 VSTPlugin::load_preset (PresetRecord r)
361 s = load_user_preset (r);
363 s = load_plugin_preset (r);
367 Plugin::load_preset (r);
374 VSTPlugin::load_plugin_preset (PresetRecord r)
376 /* This is a plugin-provided preset.
377 We can't dispatch directly here; too many plugins expects only one GUI thread.
380 /* Extract the index of this preset from the URI */
384 int const p = sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
387 sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
389 _state->want_program = index;
394 VSTPlugin::load_user_preset (PresetRecord r)
396 /* This is a user preset; we load it, and this code also knows about the
397 non-direct-dispatch thing.
400 boost::shared_ptr<XMLTree> t (presets_tree ());
405 XMLNode* root = t->root ();
407 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
408 XMLProperty* label = (*i)->property (X_("label"));
412 if (label->value() != r.label) {
416 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
418 /* Load a user preset chunk from our XML file and send it via a circuitous route to the plugin */
420 if (_state->wanted_chunk) {
421 g_free (_state->wanted_chunk);
424 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
425 if ((*j)->is_content ()) {
426 /* we can't dispatch directly here; too many plugins expect only one GUI thread */
428 guchar* raw_data = g_base64_decode ((*j)->content().c_str(), &size);
429 _state->wanted_chunk = raw_data;
430 _state->wanted_chunk_size = size;
431 _state->want_chunk = 1;
440 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
441 if ((*j)->name() == X_("Parameter")) {
442 XMLProperty* index = (*j)->property (X_("index"));
443 XMLProperty* value = (*j)->property (X_("value"));
448 set_parameter (atoi (index->value().c_str()), atof (value->value().c_str ()));
458 VSTPlugin::do_save_preset (string name)
460 boost::shared_ptr<XMLTree> t (presets_tree ());
466 /* XXX: use of _presets.size() + 1 for the unique ID here is dubious at best */
467 string const uri = string_compose (X_("VST:%1:%2"), unique_id (), _presets.size() + 1);
469 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
471 p = new XMLNode (X_("ChunkPreset"));
472 p->add_property (X_("uri"), uri);
473 p->add_property (X_("label"), name);
474 gchar* data = get_chunk (true);
475 p->add_content (string (data));
480 p = new XMLNode (X_("Preset"));
481 p->add_property (X_("uri"), uri);
482 p->add_property (X_("label"), name);
484 for (uint32_t i = 0; i < parameter_count(); ++i) {
485 if (parameter_is_input (i)) {
486 XMLNode* c = new XMLNode (X_("Parameter"));
487 c->add_property (X_("index"), string_compose ("%1", i));
488 c->add_property (X_("value"), string_compose ("%1", get_parameter (i)));
489 p->add_child_nocopy (*c);
494 t->root()->add_child_nocopy (*p);
496 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
497 f = Glib::build_filename (f, presets_file ());
504 VSTPlugin::do_remove_preset (string name)
506 boost::shared_ptr<XMLTree> t (presets_tree ());
511 t->root()->remove_nodes_and_delete (X_("label"), name);
513 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
514 f = Glib::build_filename (f, presets_file ());
520 VSTPlugin::describe_parameter (Evoral::Parameter param)
523 memset (name, 0, sizeof (name));
525 /* some VST plugins expect this buffer to be zero-filled */
527 _plugin->dispatcher (_plugin, effGetParamName, param.id(), 0, name, 0);
529 if (name[0] == '\0') {
530 strcpy (name, _("Unknown"));
537 VSTPlugin::signal_latency () const
540 return _user_latency;
543 return *((int32_t *) (((char *) &_plugin->flags) + 12)); /* initialDelay */
546 set<Evoral::Parameter>
547 VSTPlugin::automatable () const
549 set<Evoral::Parameter> ret;
551 for (uint32_t i = 0; i < parameter_count(); ++i) {
552 ret.insert (ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
559 VSTPlugin::connect_and_run (BufferSet& bufs,
560 ChanMapping in_map, ChanMapping out_map,
561 pframes_t nframes, framecnt_t offset)
563 Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
565 ChanCount bufs_count;
566 bufs_count.set(DataType::AUDIO, 1);
567 bufs_count.set(DataType::MIDI, 1);
570 BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
571 BufferSet& scratch_bufs = _session.get_scratch_buffers(bufs_count);
573 /* VC++ doesn't support the C99 extension that allows
575 typeName foo[variableDefiningSize];
577 Use alloca instead of dynamic array (rather than std::vector which
578 allocs on the heap) because this is realtime code.
581 float** ins = (float**)alloca(_plugin->numInputs*sizeof(float*));
582 float** outs = (float**)alloca(_plugin->numOutputs*sizeof(float*));
586 uint32_t in_index = 0;
587 for (i = 0; i < (int32_t) _plugin->numInputs; ++i) {
590 index = in_map.get(DataType::AUDIO, in_index++, &valid);
592 ? bufs.get_audio(index).data(offset)
593 : silent_bufs.get_audio(0).data(offset);
597 assert (nframes <= MAX_VST_BUFFERSIZE);
598 assert (_plugin->numOutputs <= _audio_out_buf_cnt);
601 uint32_t out_index = 0;
602 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
605 index = out_map.get(DataType::AUDIO, out_index++, &valid);
608 ? bufs.get_audio(index).data(offset)
609 : scratch_bufs.get_audio(0).data(offset);
612 outs[i] = scratch_bufs.get_audio(0).data(offset);
614 outs[i] = _audio_out_buf[i];
619 if (bufs.count().n_midi() > 0) {
622 const uint32_t buf_index_in = in_map.get(DataType::MIDI, 0, &valid);
624 v = bufs.get_vst_midi (buf_index_in);
627 const uint32_t buf_index_out = out_map.get(DataType::MIDI, 0, &valid);
629 _midi_out_buf = &bufs.get_midi(buf_index_out);
630 _midi_out_buf->silence(0, 0);
635 _plugin->dispatcher (_plugin, effProcessEvents, 0, 0, v, 0);
639 /* we already know it can support processReplacing */
640 _plugin->processReplacing (_plugin, &ins[0], &outs[0], nframes);
645 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
648 index = out_map.get(DataType::AUDIO, out_index++, &valid);
652 copy_vector (bufs.get_audio(index).data(offset), outs[i], nframes * sizeof(float));
659 VSTPlugin::unique_id () const
663 snprintf (buf, sizeof (buf), "%d", _plugin->uniqueID);
670 VSTPlugin::name () const
672 if (!_info->name.empty ()) {
673 return _info->name.c_str();
675 return _handle->name;
679 VSTPlugin::maker () const
681 return _info->creator.c_str();
685 VSTPlugin::label () const
687 return _handle->name;
691 VSTPlugin::parameter_count () const
693 return _plugin->numParams;
697 VSTPlugin::has_editor () const
699 return _plugin->flags & effFlagsHasEditor;
703 VSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t /*len*/) const
707 _plugin->dispatcher (_plugin, 7 /* effGetParamDisplay */, param, 0, buf, 0);
709 if (buf[0] == '\0') {
714 while (*first_nonws && isspace (*first_nonws)) {
718 if (*first_nonws == '\0') {
722 memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1);
726 VSTPlugin::find_presets ()
728 /* Built-in presets */
730 int const vst_version = _plugin->dispatcher (_plugin, effGetVstVersion, 0, 0, NULL, 0);
731 for (int i = 0; i < _plugin->numPrograms; ++i) {
732 PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", -1, false);
734 if (vst_version >= 2) {
736 if (_plugin->dispatcher (_plugin, 29, i, 0, buf, 0) == 1) {
739 r.label = string_compose (_("Preset %1"), i);
742 r.label = string_compose (_("Preset %1"), i);
745 _presets.insert (make_pair (r.uri, r));
748 /* User presets from our XML file */
750 boost::shared_ptr<XMLTree> t (presets_tree ());
753 XMLNode* root = t->root ();
754 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
756 XMLProperty* uri = (*i)->property (X_("uri"));
757 XMLProperty* label = (*i)->property (X_("label"));
762 PresetRecord r (uri->value(), label->value(), -1, true);
763 _presets.insert (make_pair (r.uri, r));
769 /** @return XMLTree with our user presets; could be a new one if no existing
770 * one was found, or 0 if one was present but badly-formatted.
773 VSTPlugin::presets_tree () const
775 XMLTree* t = new XMLTree;
777 std::string p = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
779 if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) {
780 if (g_mkdir_with_parents (p.c_str(), 0755) != 0) {
781 error << _("Unable to make VST presets directory") << endmsg;
785 p = Glib::build_filename (p, presets_file ());
787 if (!Glib::file_test (p, Glib::FILE_TEST_EXISTS)) {
788 t->set_root (new XMLNode (X_("VSTPresets")));
801 /** @return Index of the first user preset in our lists */
803 VSTPlugin::first_user_preset_index () const
805 return _plugin->numPrograms;
809 VSTPlugin::presets_file () const
811 return string_compose ("vst-%1", unique_id ());