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/locale_guard.h"
27 #include "pbd/pathscanner.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"
40 using namespace ARDOUR;
42 VSTPlugin::VSTPlugin (AudioEngine& engine, Session& session, VSTHandle* handle)
43 : Plugin (engine, session)
51 VSTPlugin::~VSTPlugin ()
57 VSTPlugin::set_plugin (AEffect* e)
62 /* set rate and blocksize */
64 _plugin->dispatcher (_plugin, effSetSampleRate, 0, 0, NULL, (float) _session.frame_rate());
65 _plugin->dispatcher (_plugin, effSetBlockSize, 0, _session.get_block_size(), NULL, 0.0f);
69 VSTPlugin::deactivate ()
71 _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f);
75 VSTPlugin::activate ()
77 _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f);
81 VSTPlugin::set_block_size (pframes_t nframes)
84 _plugin->dispatcher (_plugin, effSetBlockSize, 0, nframes, NULL, 0.0f);
90 VSTPlugin::default_value (uint32_t)
96 VSTPlugin::get_parameter (uint32_t which) const
98 return _plugin->getParameter (_plugin, which);
102 VSTPlugin::set_parameter (uint32_t which, float val)
104 float v = get_parameter (which);
106 cerr << name() << " setting parameter #" << which << " to " << val << " current " << v << " == ? " << (v == val) << endl;
108 if (get_parameter (which) == val) {
112 _plugin->setParameter (_plugin, which, val);
113 Plugin::set_parameter (which, val);
117 VSTPlugin::nth_parameter (uint32_t n, bool& ok) const
123 /** Get VST chunk as base64-encoded data.
124 * @param single true for single program, false for all programs.
125 * @return 0-terminated base64-encoded data; must be passed to g_free () by caller.
128 VSTPlugin::get_chunk (bool single) const
131 int32_t data_size = _plugin->dispatcher (_plugin, 23 /* effGetChunk */, single ? 1 : 0, 0, &data, 0);
132 if (data_size == 0) {
136 return g_base64_encode (data, data_size);
139 /** Set VST chunk from base64-encoded data.
140 * @param 0-terminated base64-encoded data.
141 * @param single true for single program, false for all programs.
142 * @return 0 on success, non-0 on failure
145 VSTPlugin::set_chunk (gchar const * data, bool single)
148 guchar* raw_data = g_base64_decode (data, &size);
149 int const r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0);
155 VSTPlugin::add_state (XMLNode* root) const
157 LocaleGuard lg (X_("POSIX"));
159 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
161 gchar* data = get_chunk (false);
166 /* store information */
168 XMLNode* chunk_node = new XMLNode (X_("chunk"));
170 chunk_node->add_content (data);
173 root->add_child_nocopy (*chunk_node);
177 XMLNode* parameters = new XMLNode ("parameters");
179 for (int32_t n = 0; n < _plugin->numParams; ++n) {
182 snprintf (index, sizeof (index), "param-%d", n);
183 snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n));
184 parameters->add_property (index, val);
187 root->add_child_nocopy (*parameters);
192 VSTPlugin::set_state (const XMLNode& node, int version)
194 LocaleGuard lg (X_("POSIX"));
196 if (node.name() != state_node_name()) {
197 error << _("Bad node sent to VSTPlugin::set_state") << endmsg;
204 if ((child = find_named_node (node, X_("chunk"))) != 0) {
206 XMLPropertyList::const_iterator i;
207 XMLNodeList::const_iterator n;
209 for (n = child->children ().begin (); n != child->children ().end (); ++n) {
210 if ((*n)->is_content ()) {
211 /* XXX: this may be dubious for the same reasons that we delay
212 execution of load_preset.
214 ret = set_chunk ((*n)->content().c_str(), false);
218 } else if ((child = find_named_node (node, X_("parameters"))) != 0) {
220 XMLPropertyList::const_iterator i;
222 for (i = child->properties().begin(); i != child->properties().end(); ++i) {
226 sscanf ((*i)->name().c_str(), "param-%d", ¶m);
227 sscanf ((*i)->value().c_str(), "%f", &val);
229 _plugin->setParameter (_plugin, param, val);
236 Plugin::set_state (node, version);
242 VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
244 VstParameterProperties prop;
246 desc.min_unbound = false;
247 desc.max_unbound = false;
250 if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) {
252 /* i have yet to find or hear of a VST plugin that uses this */
254 if (prop.flags & kVstParameterUsesIntegerMinMax) {
255 desc.lower = prop.minInteger;
256 desc.upper = prop.maxInteger;
262 if (prop.flags & kVstParameterUsesIntStep) {
264 desc.step = prop.stepInteger;
265 desc.smallstep = prop.stepInteger;
266 desc.largestep = prop.stepInteger;
268 } else if (prop.flags & kVstParameterUsesFloatStep) {
270 desc.step = prop.stepFloat;
271 desc.smallstep = prop.smallStepFloat;
272 desc.largestep = prop.largeStepFloat;
276 float range = desc.upper - desc.lower;
278 desc.step = range / 100.0f;
279 desc.smallstep = desc.step / 2.0f;
280 desc.largestep = desc.step * 10.0f;
283 desc.toggled = prop.flags & kVstParameterIsSwitch;
284 desc.logarithmic = false;
285 desc.sr_dependent = false;
286 desc.label = prop.label;
295 _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0);
298 desc.integer_step = false;
302 desc.smallstep = 0.005f;
303 desc.largestep = 0.1f;
304 desc.toggled = false;
305 desc.logarithmic = false;
306 desc.sr_dependent = false;
313 VSTPlugin::load_preset (PresetRecord r)
318 s = load_user_preset (r);
320 s = load_plugin_preset (r);
324 Plugin::load_preset (r);
331 VSTPlugin::load_plugin_preset (PresetRecord r)
333 /* This is a plugin-provided preset.
334 We can't dispatch directly here; too many plugins expects only one GUI thread.
337 /* Extract the index of this preset from the URI */
341 int const p = sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
344 sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index);
347 _state->want_program = index;
352 VSTPlugin::load_user_preset (PresetRecord r)
354 /* This is a user preset; we load it, and this code also knows about the
355 non-direct-dispatch thing.
358 boost::shared_ptr<XMLTree> t (presets_tree ());
363 XMLNode* root = t->root ();
365 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
366 XMLProperty* label = (*i)->property (X_("label"));
370 if (label->value() != r.label) {
374 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
376 /* Load a user preset chunk from our XML file and send it via a circuitous route to the plugin */
378 if (_state->wanted_chunk) {
379 g_free (_state->wanted_chunk);
382 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
383 if ((*j)->is_content ()) {
384 /* we can't dispatch directly here; too many plugins expect only one GUI thread */
386 guchar* raw_data = g_base64_decode ((*j)->content().c_str(), &size);
387 _state->wanted_chunk = raw_data;
388 _state->wanted_chunk_size = size;
389 _state->want_chunk = 1;
398 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
399 if ((*j)->name() == X_("Parameter")) {
400 XMLProperty* index = (*j)->property (X_("index"));
401 XMLProperty* value = (*j)->property (X_("value"));
406 set_parameter (atoi (index->value().c_str()), atof (value->value().c_str ()));
416 VSTPlugin::do_save_preset (string name)
418 boost::shared_ptr<XMLTree> t (presets_tree ());
424 /* XXX: use of _presets.size() + 1 for the unique ID here is dubious at best */
425 string const uri = string_compose (X_("VST:%1:%2"), unique_id (), _presets.size() + 1);
427 if (_plugin->flags & 32 /* effFlagsProgramsChunks */) {
429 p = new XMLNode (X_("ChunkPreset"));
430 p->add_property (X_("uri"), uri);
431 p->add_property (X_("label"), name);
432 gchar* data = get_chunk (true);
433 p->add_content (string (data));
438 p = new XMLNode (X_("Preset"));
439 p->add_property (X_("uri"), uri);
440 p->add_property (X_("label"), name);
442 for (uint32_t i = 0; i < parameter_count(); ++i) {
443 if (parameter_is_input (i)) {
444 XMLNode* c = new XMLNode (X_("Parameter"));
445 c->add_property (X_("index"), string_compose ("%1", i));
446 c->add_property (X_("value"), string_compose ("%1", get_parameter (i)));
447 p->add_child_nocopy (*c);
452 t->root()->add_child_nocopy (*p);
454 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
455 f = Glib::build_filename (f, presets_file ());
462 VSTPlugin::do_remove_preset (string name)
464 boost::shared_ptr<XMLTree> t (presets_tree ());
469 t->root()->remove_nodes_and_delete (X_("label"), name);
471 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
472 f = Glib::build_filename (f, presets_file ());
478 VSTPlugin::describe_parameter (Evoral::Parameter param)
480 char name[64] = "Unkown";
481 _plugin->dispatcher (_plugin, effGetParamName, param.id(), 0, name, 0);
486 VSTPlugin::signal_latency () const
489 return _user_latency;
492 return *((int32_t *) (((char *) &_plugin->flags) + 12)); /* initialDelay */
495 set<Evoral::Parameter>
496 VSTPlugin::automatable () const
498 set<Evoral::Parameter> ret;
500 for (uint32_t i = 0; i < parameter_count(); ++i) {
501 ret.insert (ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
508 VSTPlugin::connect_and_run (BufferSet& bufs,
509 ChanMapping in_map, ChanMapping out_map,
510 pframes_t nframes, framecnt_t offset)
512 Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
514 float *ins[_plugin->numInputs];
515 float *outs[_plugin->numOutputs];
518 const uint32_t nbufs = bufs.count().n_audio();
521 for (i = 0; i < (int32_t) _plugin->numInputs; ++i) {
522 ins[i] = bufs.get_audio(min((uint32_t) in_index, nbufs - 1)).data() + offset;
527 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
528 outs[i] = bufs.get_audio(min((uint32_t) out_index, nbufs - 1)).data() + offset;
532 if (bufs.count().n_midi() > 0) {
533 VstEvents* v = bufs.get_vst_midi (0);
534 _plugin->dispatcher (_plugin, effProcessEvents, 0, 0, v, 0);
537 /* we already know it can support processReplacing */
538 _plugin->processReplacing (_plugin, ins, outs, nframes);
544 VSTPlugin::unique_id () const
548 snprintf (buf, sizeof (buf), "%d", _plugin->uniqueID);
555 VSTPlugin::name () const
557 return _handle->name;
561 VSTPlugin::maker () const
563 return _info->creator.c_str();
567 VSTPlugin::label () const
569 return _handle->name;
573 VSTPlugin::parameter_count () const
575 return _plugin->numParams;
579 VSTPlugin::has_editor () const
581 return _plugin->flags & effFlagsHasEditor;
585 VSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t /*len*/) const
589 _plugin->dispatcher (_plugin, 7 /* effGetParamDisplay */, param, 0, buf, 0);
591 if (buf[0] == '\0') {
596 while (*first_nonws && isspace (*first_nonws)) {
600 if (*first_nonws == '\0') {
604 memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1);
608 VSTPlugin::find_presets ()
610 /* Built-in presets */
612 int const vst_version = _plugin->dispatcher (_plugin, effGetVstVersion, 0, 0, NULL, 0);
613 for (int i = 0; i < _plugin->numPrograms; ++i) {
614 PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", -1, false);
616 if (vst_version >= 2) {
618 if (_plugin->dispatcher (_plugin, 29, i, 0, buf, 0) == 1) {
621 r.label = string_compose (_("Preset %1"), i);
624 r.label = string_compose (_("Preset %1"), i);
627 _presets.insert (make_pair (r.uri, r));
630 /* User presets from our XML file */
632 boost::shared_ptr<XMLTree> t (presets_tree ());
635 XMLNode* root = t->root ();
636 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
638 XMLProperty* uri = (*i)->property (X_("uri"));
639 XMLProperty* label = (*i)->property (X_("label"));
644 PresetRecord r (uri->value(), label->value(), -1, true);
645 _presets.insert (make_pair (r.uri, r));
651 /** @return XMLTree with our user presets; could be a new one if no existing
652 * one was found, or 0 if one was present but badly-formatted.
655 VSTPlugin::presets_tree () const
657 XMLTree* t = new XMLTree;
659 std::string p = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
661 if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) {
662 if (g_mkdir_with_parents (p.c_str(), 0755) != 0) {
663 error << _("Unable to make VST presets directory") << endmsg;
667 p = Glib::build_filename (p, presets_file ());
669 if (!Glib::file_test (p, Glib::FILE_TEST_EXISTS)) {
670 t->set_root (new XMLNode (X_("VSTPresets")));
683 /** @return Index of the first user preset in our lists */
685 VSTPlugin::first_user_preset_index () const
687 return _plugin->numPrograms;
691 VSTPlugin::presets_file () const
693 return string_compose ("vst-%1", unique_id ());