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 <string.h> // for memmove
36 #include <pbd/compose.h>
37 #include <pbd/error.h>
38 #include <pbd/pathscanner.h>
39 #include <pbd/xml++.h>
41 #include <vst/aeffectx.h>
43 #include <ardour/session.h>
44 #include <ardour/audioengine.h>
45 #include <ardour/filesystem_paths.h>
46 #include <ardour/vst_plugin.h>
47 #include <ardour/buffer_set.h>
49 #include <pbd/stl_delete.h>
54 using namespace ARDOUR;
59 VSTPlugin::VSTPlugin (AudioEngine& e, Session& session, FSTHandle* h)
64 if ((_fst = fst_instantiate (handle, Session::vst_callback, this)) == 0) {
65 throw failed_constructor();
68 _plugin = _fst->plugin;
71 /* set rate and blocksize */
73 _plugin->dispatcher (_plugin, effSetSampleRate, 0, 0, NULL,
74 (float) session.frame_rate());
75 _plugin->dispatcher (_plugin, effSetBlockSize, 0,
76 session.get_block_size(), NULL, 0.0f);
78 /* set program to zero */
80 _plugin->dispatcher (_plugin, effSetProgram, 0, 0, NULL, 0.0f);
82 Plugin::setup_controls ();
85 VSTPlugin::VSTPlugin (const VSTPlugin &other)
88 handle = other.handle;
90 if ((_fst = fst_instantiate (handle, Session::vst_callback, this)) == 0) {
91 throw failed_constructor();
93 _plugin = _fst->plugin;
95 Plugin::setup_controls ();
98 VSTPlugin::~VSTPlugin ()
101 GoingAway (); /* EMIT SIGNAL */
106 VSTPlugin::set_block_size (nframes_t nframes)
109 _plugin->dispatcher (_plugin, effSetBlockSize, 0, nframes, NULL, 0.0f);
114 VSTPlugin::default_value (uint32_t port)
120 VSTPlugin::set_parameter (uint32_t which, float val)
122 _plugin->setParameter (_plugin, which, val);
123 //ParameterChanged (which, val); /* EMIT SIGNAL */
127 VSTPlugin::get_parameter (uint32_t which) const
129 return _plugin->getParameter (_plugin, which);
134 VSTPlugin::nth_parameter (uint32_t n, bool& ok) const
141 VSTPlugin::get_state()
143 XMLNode *root = new XMLNode (state_node_name());
144 LocaleGuard lg (X_("POSIX"));
146 if (_plugin->flags & effFlagsProgramChunks) {
148 /* fetch the current chunk */
153 if ((data_size = _plugin->dispatcher (_plugin, effGetChunk, 0, 0, &data, false)) == 0) {
157 /* save it to a file */
162 sys::path user_vst_directory(user_config_directory());
164 user_vst_directory /= "vst";
166 path = user_vst_directory.to_string();
168 if (stat (path.c_str(), &sbuf)) {
169 if (errno == ENOENT) {
170 if (g_mkdir_with_parents (path.c_str(), 0600)) {
171 error << string_compose (_("cannot create VST chunk directory: %1"),
179 warning << string_compose (_("cannot check VST chunk directory: %1"), strerror (errno))
184 } else if (!S_ISDIR (sbuf.st_mode)) {
185 error << string_compose (_("%1 exists but is not a directory"), path)
192 /* store information */
194 XMLNode* chunk_node = new XMLNode (X_("chunk"));
195 chunk_node->add_property ("path", path);
197 root->add_child_nocopy (*chunk_node);
201 XMLNode* parameters = new XMLNode ("parameters");
203 for (long n = 0; n < _plugin->numParams; ++n) {
206 snprintf (index, sizeof (index), "param_%ld", n);
207 snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n));
208 parameters->add_property (index, val);
211 root->add_child_nocopy (*parameters);
218 VSTPlugin::set_state(const XMLNode& node)
220 LocaleGuard lg (X_("POSIX"));
222 if (node.name() != state_node_name()) {
223 error << _("Bad node sent to VSTPlugin::set_state") << endmsg;
229 if ((child = find_named_node (node, X_("chunks"))) != 0) {
233 } else if ((child = find_named_node (node, X_("parameters"))) != 0) {
235 XMLPropertyList::const_iterator i;
237 for (i = child->properties().begin(); i != child->properties().end(); ++i) {
241 sscanf ((*i)->name().c_str(), "param_%ld", ¶m);
242 sscanf ((*i)->value().c_str(), "%f", &val);
244 _plugin->setParameter (_plugin, param, val);
254 VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
256 VstParameterProperties prop;
258 desc.min_unbound = false;
259 desc.max_unbound = false;
261 if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) {
263 /* i have yet to find or hear of a VST plugin that uses this */
265 if (prop.flags & kVstParameterUsesIntegerMinMax) {
266 desc.lower = prop.minInteger;
267 desc.upper = prop.maxInteger;
273 if (prop.flags & kVstParameterUsesIntStep) {
275 desc.step = prop.stepInteger;
276 desc.smallstep = prop.stepInteger;
277 desc.largestep = prop.stepInteger;
279 } else if (prop.flags & kVstParameterUsesFloatStep) {
281 desc.step = prop.stepFloat;
282 desc.smallstep = prop.smallStepFloat;
283 desc.largestep = prop.largeStepFloat;
287 float range = desc.upper - desc.lower;
289 desc.step = range / 100.0f;
290 desc.smallstep = desc.step / 2.0f;
291 desc.largestep = desc.step * 10.0f;
294 desc.toggled = prop.flags & kVstParameterIsSwitch;
295 desc.logarithmic = false;
296 desc.sr_dependent = false;
297 desc.label = prop.label;
306 _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0);
309 desc.integer_step = false;
313 desc.smallstep = 0.005f;
314 desc.largestep = 0.1f;
315 desc.toggled = false;
316 desc.logarithmic = false;
317 desc.sr_dependent = false;
324 VSTPlugin::load_preset (string name)
326 if (_plugin->flags & effFlagsProgramChunks) {
327 error << _("no support for presets using chunks at this time")
331 return Plugin::load_preset (name);
335 VSTPlugin::save_preset (string name)
337 if (_plugin->flags & effFlagsProgramChunks) {
338 error << _("no support for presets using chunks at this time")
342 return Plugin::save_preset (name, "vst");
346 VSTPlugin::describe_parameter (uint32_t param)
349 _plugin->dispatcher (_plugin, effGetParamName, param, 0, name, 0);
354 VSTPlugin::signal_latency () const
357 return _user_latency;
360 return _plugin->initialDelay;
364 VSTPlugin::automatable () const
368 for (uint32_t i = 0; i < parameter_count(); ++i){
369 ret.insert (ret.end(), i);
376 VSTPlugin::connect_and_run (BufferSet& bufs, uint32_t& in_index, uint32_t& out_index, nframes_t nframes, nframes_t offset)
378 float *ins[_plugin->numInputs];
379 float *outs[_plugin->numOutputs];
382 const uint32_t nbufs = bufs.count().n_audio();
384 for (i = 0; i < (int32_t) _plugin->numInputs; ++i) {
385 ins[i] = bufs.get_audio(min((uint32_t) in_index, nbufs - 1)).data() + offset;
389 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
390 outs[i] = bufs.get_audio(min((uint32_t) out_index, nbufs - 1)).data() + offset;
392 /* unbelievably, several VST plugins still rely on Cubase
393 behaviour and do not silence the buffer in processReplacing
394 when they have no output.
397 // memset (outs[i], 0, sizeof (Sample) * nframes);
402 /* we already know it can support processReplacing */
404 _plugin->processReplacing (_plugin, ins, outs, nframes);
410 VSTPlugin::deactivate ()
412 _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f);
416 VSTPlugin::activate ()
418 _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f);
422 VSTPlugin::unique_id() const
424 return _plugin->uniqueID;
429 VSTPlugin::name () const
435 VSTPlugin::maker () const
441 VSTPlugin::label () const
447 VSTPlugin::parameter_count() const
449 return _plugin->numParams;
453 VSTPlugin::has_editor () const
455 return _plugin->flags & effFlagsHasEditor;
459 VSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
464 _plugin->dispatcher (_plugin, effGetParamLabel, param, 0, lab, 0);
465 _plugin->dispatcher (_plugin, effGetParamDisplay, param, 0, buf, 0);
467 if (buf[0] == '\0') {
472 while (*first_nonws && isspace (*first_nonws)) {
475 if (*first_nonws == '\0') {
479 memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1);
483 VSTPluginInfo::load (Session& session)
488 if (Config->get_use_vst()) {
491 handle = fst_load(path.c_str());
493 if ( (int)handle == -1) {
494 error << string_compose(_("VST: cannot load module from \"%1\""), path) << endmsg;
496 plugin.reset (new VSTPlugin (session.engine(), session, handle));
499 error << _("You asked ardour to not use any VST plugins") << endmsg;
500 return PluginPtr ((Plugin*) 0);
503 plugin->set_info(PluginInfoPtr(new VSTPluginInfo(*this)));
507 catch (failed_constructor &err) {
508 return PluginPtr ((Plugin*) 0);
513 VSTPlugin::store_state (ARDOUR::PluginState& s)
519 VSTPlugin::restore_state (ARDOUR::PluginState& s)