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.
27 #include <cstdio> // so libraptor doesn't complain
30 #include <string.h> // for memmove
37 #include <pbd/compose.h>
38 #include <pbd/error.h>
39 #include <pbd/pathscanner.h>
40 #include <pbd/xml++.h>
42 #include <vst/aeffectx.h>
44 #include <ardour/ardour.h>
45 #include <ardour/session.h>
46 #include <ardour/audioengine.h>
47 #include <ardour/vst_plugin.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 path = getenv ("HOME");
163 path += "/.ardour/vst";
165 if (stat (path.c_str(), &sbuf)) {
166 if (errno == ENOENT) {
167 if (g_mkdir_with_parents (path.c_str(), 0600)) {
168 error << string_compose (_("cannot create VST chunk directory: %1"),
176 error << string_compose (_("cannot check VST chunk directory: %1"),
182 } else if (!S_ISDIR (sbuf.st_mode)) {
183 error << string_compose (_("%1 exists but is not a directory"), path)
190 /* store information */
192 XMLNode* chunk_node = new XMLNode (X_("chunk"));
193 chunk_node->add_property ("path", path);
195 root->add_child_nocopy (*chunk_node);
199 XMLNode* parameters = new XMLNode ("parameters");
201 for (long n = 0; n < _plugin->numParams; ++n) {
204 snprintf (index, sizeof (index), "param_%ld", n);
205 snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n));
206 parameters->add_property (index, val);
209 root->add_child_nocopy (*parameters);
216 VSTPlugin::set_state(const XMLNode& node)
218 LocaleGuard lg (X_("POSIX"));
220 if (node.name() != state_node_name()) {
221 error << _("Bad node sent to VSTPlugin::set_state") << endmsg;
227 if ((child = find_named_node (node, X_("chunks"))) != 0) {
231 } else if ((child = find_named_node (node, X_("parameters"))) != 0) {
233 XMLPropertyList::const_iterator i;
235 for (i = child->properties().begin(); i != child->properties().end(); ++i) {
239 sscanf ((*i)->name().c_str(), "param_%ld", ¶m);
240 sscanf ((*i)->value().c_str(), "%f", &val);
242 _plugin->setParameter (_plugin, param, val);
252 VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
254 VstParameterProperties prop;
256 desc.min_unbound = false;
257 desc.max_unbound = false;
259 if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) {
261 /* i have yet to find or hear of a VST plugin that uses this */
263 if (prop.flags & kVstParameterUsesIntegerMinMax) {
264 desc.lower = prop.minInteger;
265 desc.upper = prop.maxInteger;
271 if (prop.flags & kVstParameterUsesIntStep) {
273 desc.step = prop.stepInteger;
274 desc.smallstep = prop.stepInteger;
275 desc.largestep = prop.stepInteger;
277 } else if (prop.flags & kVstParameterUsesFloatStep) {
279 desc.step = prop.stepFloat;
280 desc.smallstep = prop.smallStepFloat;
281 desc.largestep = prop.largeStepFloat;
285 float range = desc.upper - desc.lower;
287 desc.step = range / 100.0f;
288 desc.smallstep = desc.step / 2.0f;
289 desc.largestep = desc.step * 10.0f;
292 desc.toggled = prop.flags & kVstParameterIsSwitch;
293 desc.logarithmic = false;
294 desc.sr_dependent = false;
295 desc.label = prop.label;
304 _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0);
307 desc.integer_step = false;
311 desc.smallstep = 0.005f;
312 desc.largestep = 0.1f;
313 desc.toggled = false;
314 desc.logarithmic = false;
315 desc.sr_dependent = false;
322 VSTPlugin::load_preset (string name)
324 if (_plugin->flags & effFlagsProgramChunks) {
325 error << _("no support for presets using chunks at this time")
329 return Plugin::load_preset (name);
333 VSTPlugin::save_preset (string name)
335 if (_plugin->flags & effFlagsProgramChunks) {
336 error << _("no support for presets using chunks at this time")
340 return Plugin::save_preset (name, "vst");
344 VSTPlugin::describe_parameter (uint32_t param)
347 _plugin->dispatcher (_plugin, effGetParamName, param, 0, name, 0);
352 VSTPlugin::latency () const
354 return _plugin->initialDelay;
358 VSTPlugin::automatable () const
362 for (uint32_t i = 0; i < parameter_count(); ++i){
363 ret.insert (ret.end(), i);
370 VSTPlugin::connect_and_run (vector<Sample*>& bufs, uint32_t maxbuf, int32_t& in_index, int32_t& out_index, nframes_t nframes, nframes_t offset)
372 float *ins[_plugin->numInputs];
373 float *outs[_plugin->numOutputs];
376 for (i = 0; i < (int32_t) _plugin->numInputs; ++i) {
377 ins[i] = bufs[min((uint32_t) in_index,maxbuf - 1)] + offset;
381 for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) {
382 outs[i] = bufs[min((uint32_t) out_index,maxbuf - 1)] + offset;
384 /* unbelievably, several VST plugins still rely on Cubase
385 behaviour and do not silence the buffer in processReplacing
386 when they have no output.
389 // memset (outs[i], 0, sizeof (Sample) * nframes);
394 /* we already know it can support processReplacing */
396 _plugin->processReplacing (_plugin, ins, outs, nframes);
402 VSTPlugin::deactivate ()
404 _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f);
408 VSTPlugin::activate ()
410 _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f);
414 VSTPlugin::unique_id() const
416 return _plugin->uniqueID;
421 VSTPlugin::name () const
427 VSTPlugin::maker () const
433 VSTPlugin::label () const
439 VSTPlugin::parameter_count() const
441 return _plugin->numParams;
445 VSTPlugin::has_editor () const
447 return _plugin->flags & effFlagsHasEditor;
451 VSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
456 _plugin->dispatcher (_plugin, effGetParamLabel, param, 0, lab, 0);
457 _plugin->dispatcher (_plugin, effGetParamDisplay, param, 0, buf, 0);
459 if (buf[0] == '\0') {
464 while (*first_nonws && isspace (*first_nonws)) {
467 if (*first_nonws == '\0') {
471 memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1);
475 VSTPluginInfo::load (Session& session)
480 if (Config->get_use_vst()) {
483 handle = fst_load(path.c_str());
485 if ( (int)handle == -1) {
486 error << string_compose(_("VST: cannot load module from \"%1\""), path) << endmsg;
488 plugin.reset (new VSTPlugin (session.engine(), session, handle));
491 error << _("You asked ardour to not use any VST plugins") << endmsg;
492 return PluginPtr ((Plugin*) 0);
495 plugin->set_info(PluginInfoPtr(new VSTPluginInfo(*this)));
499 catch (failed_constructor &err) {
500 return PluginPtr ((Plugin*) 0);