From bef7b70e470aa8e3b589fd72c5cdac2b77fa7ada Mon Sep 17 00:00:00 2001 From: Carl Hetherington Date: Tue, 22 Nov 2011 15:15:17 +0000 Subject: [PATCH] Add missing files. git-svn-id: svn://localhost/ardour2/branches/3.0@10774 d708f5d6-7413-0410-9779-e7cbd77b26cf --- libs/ardour/ardour/vst_plugin.h | 101 +++++ libs/ardour/vst_plugin.cc | 713 ++++++++++++++++++++++++++++++++ 2 files changed, 814 insertions(+) create mode 100644 libs/ardour/ardour/vst_plugin.h create mode 100644 libs/ardour/vst_plugin.cc diff --git a/libs/ardour/ardour/vst_plugin.h b/libs/ardour/ardour/vst_plugin.h new file mode 100644 index 0000000000..7ca973cbb7 --- /dev/null +++ b/libs/ardour/ardour/vst_plugin.h @@ -0,0 +1,101 @@ +/* + Copyright (C) 2010 Paul Davis + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef __ardour_vst_plugin_h__ +#define __ardour_vst_plugin_h__ + +#include "ardour/plugin.h" + +struct _AEffect; +typedef struct _AEffect AEffect; +struct _VSTHandle; +typedef struct _VSTHandle VSTHandle; +struct _VSTState; +typedef struct _VSTState VSTState; + +namespace ARDOUR { + +/** Parent class for VST plugins of both Windows and Linux varieties */ +class VSTPlugin : public Plugin +{ +public: + VSTPlugin (AudioEngine &, Session &, VSTHandle *); + virtual ~VSTPlugin (); + + void activate (); + void deactivate (); + + int set_block_size (pframes_t); + float default_value (uint32_t port); + float get_parameter (uint32_t port) const; + uint32_t nth_parameter (uint32_t port, bool& ok) const; + void set_parameter (uint32_t port, float val); + bool load_preset (PresetRecord); + int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const; + std::string describe_parameter (Evoral::Parameter); + framecnt_t signal_latency() const; + std::set automatable() const; + + bool parameter_is_audio (uint32_t) const { return false; } + bool parameter_is_control (uint32_t) const { return true; } + bool parameter_is_input (uint32_t) const { return true; } + bool parameter_is_output (uint32_t) const { return false; } + + int connect_and_run ( + BufferSet&, ChanMapping in, ChanMapping out, + pframes_t nframes, framecnt_t offset + ); + + std::string unique_id () const; + const char * label () const; + const char * name () const; + const char * maker () const; + uint32_t parameter_count () const; + void print_parameter (uint32_t, char*, uint32_t len) const; + + bool has_editor () const; + + AEffect * plugin () const { return _plugin; } + VSTState * state () const { return _state; } + + int set_state (XMLNode const &, int); + + int first_user_preset_index () const; + +protected: + void set_plugin (AEffect *); + gchar* get_chunk (bool) const; + int set_chunk (gchar const *, bool); + void add_state (XMLNode *) const; + bool load_user_preset (PresetRecord); + bool load_plugin_preset (PresetRecord); + std::string do_save_preset (std::string name); + void do_remove_preset (std::string name); + XMLTree * presets_tree () const; + std::string presets_file () const; + void find_presets (); + + VSTHandle* _handle; + VSTState* _state; + AEffect* _plugin; +}; + +} + +#endif diff --git a/libs/ardour/vst_plugin.cc b/libs/ardour/vst_plugin.cc new file mode 100644 index 0000000000..29c5a58315 --- /dev/null +++ b/libs/ardour/vst_plugin.cc @@ -0,0 +1,713 @@ +/* + Copyright (C) 2010 Paul Davis + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#include "pbd/locale_guard.h" +#include "pbd/pathscanner.h" +#include "ardour/vst_plugin.h" +#include "ardour/vestige/aeffectx.h" +#include "ardour/session.h" +#include "ardour/vst_types.h" +#include "ardour/filesystem_paths.h" +#include "ardour/audio_buffer.h" + +#include "i18n.h" + +using namespace std; +using namespace PBD; +using namespace ARDOUR; + +VSTPlugin::VSTPlugin (AudioEngine& engine, Session& session, VSTHandle* handle) + : Plugin (engine, session) + , _handle (handle) + , _state (0) + , _plugin (0) +{ + +} + +VSTPlugin::~VSTPlugin () +{ + deactivate (); +} + +void +VSTPlugin::set_plugin (AEffect* e) +{ + _plugin = e; + _plugin->user = this; + + /* set rate and blocksize */ + + _plugin->dispatcher (_plugin, effSetSampleRate, 0, 0, NULL, (float) _session.frame_rate()); + _plugin->dispatcher (_plugin, effSetBlockSize, 0, _session.get_block_size(), NULL, 0.0f); + + /* set program to zero */ + + _plugin->dispatcher (_plugin, effSetProgram, 0, 0, NULL, 0.0f); +} + +void +VSTPlugin::deactivate () +{ + _plugin->dispatcher (_plugin, effMainsChanged, 0, 0, NULL, 0.0f); +} + +void +VSTPlugin::activate () +{ + _plugin->dispatcher (_plugin, effMainsChanged, 0, 1, NULL, 0.0f); +} + +int +VSTPlugin::set_block_size (pframes_t nframes) +{ + deactivate (); + _plugin->dispatcher (_plugin, effSetBlockSize, 0, nframes, NULL, 0.0f); + activate (); + return 0; +} + +float +VSTPlugin::default_value (uint32_t) +{ + return 0; +} + +float +VSTPlugin::get_parameter (uint32_t which) const +{ + return _plugin->getParameter (_plugin, which); +} + +void +VSTPlugin::set_parameter (uint32_t which, float val) +{ + _plugin->setParameter (_plugin, which, val); + + if (_state->want_program == -1 && _state->want_chunk == 0) { + /* Heinous hack: Plugin::set_parameter below updates the `modified' status of the + current preset, but if _state->want_program is not -1 then there is a preset + setup pending or in progress, which we don't want any `modified' updates + to happen for. So we only do this if _state->want_program is -1. + */ + Plugin::set_parameter (which, val); + } +} + +uint32_t +VSTPlugin::nth_parameter (uint32_t n, bool& ok) const +{ + ok = true; + return n; +} + +/** Get VST chunk as base64-encoded data. + * @param single true for single program, false for all programs. + * @return 0-terminated base64-encoded data; must be passed to g_free () by caller. + */ +gchar * +VSTPlugin::get_chunk (bool single) const +{ + guchar* data; + int32_t data_size = _plugin->dispatcher (_plugin, 23 /* effGetChunk */, single ? 1 : 0, 0, &data, 0); + if (data_size == 0) { + return 0; + } + + return g_base64_encode (data, data_size); +} + +/** Set VST chunk from base64-encoded data. + * @param 0-terminated base64-encoded data. + * @param single true for single program, false for all programs. + * @return 0 on success, non-0 on failure + */ +int +VSTPlugin::set_chunk (gchar const * data, bool single) +{ + gsize size = 0; + guchar* raw_data = g_base64_decode (data, &size); + int const r = _plugin->dispatcher (_plugin, 24 /* effSetChunk */, single ? 1 : 0, size, raw_data, 0); + g_free (raw_data); + return r; +} + +void +VSTPlugin::add_state (XMLNode* root) const +{ + LocaleGuard lg (X_("POSIX")); + + if (_state->current_program != -1) { + char buf[32]; + snprintf (buf, sizeof (buf), "%d", _state->current_program); + root->add_property ("current-program", buf); + } + + if (_plugin->flags & 32 /* effFlagsProgramsChunks */) { + + gchar* data = get_chunk (false); + if (data == 0) { + return; + } + + /* store information */ + + XMLNode* chunk_node = new XMLNode (X_("chunk")); + + chunk_node->add_content (data); + g_free (data); + + root->add_child_nocopy (*chunk_node); + + } else { + + XMLNode* parameters = new XMLNode ("parameters"); + + for (int32_t n = 0; n < _plugin->numParams; ++n) { + char index[64]; + char val[32]; + snprintf (index, sizeof (index), "param-%d", n); + snprintf (val, sizeof (val), "%.12g", _plugin->getParameter (_plugin, n)); + parameters->add_property (index, val); + } + + root->add_child_nocopy (*parameters); + } +} + +int +VSTPlugin::set_state (const XMLNode& node, int version) +{ + LocaleGuard lg (X_("POSIX")); + + if (node.name() != state_node_name()) { + error << _("Bad node sent to VSTPlugin::set_state") << endmsg; + return 0; + } + + const XMLProperty* prop; + + if ((prop = node.property ("current-program")) != 0) { + _state->want_program = atoi (prop->value().c_str()); + } + + XMLNode* child; + int ret = -1; + + if ((child = find_named_node (node, X_("chunk"))) != 0) { + + XMLPropertyList::const_iterator i; + XMLNodeList::const_iterator n; + + for (n = child->children ().begin (); n != child->children ().end (); ++n) { + if ((*n)->is_content ()) { + /* XXX: this may be dubious for the same reasons that we delay + execution of load_preset. + */ + ret = set_chunk ((*n)->content().c_str(), false); + } + } + + } else if ((child = find_named_node (node, X_("parameters"))) != 0) { + + XMLPropertyList::const_iterator i; + + for (i = child->properties().begin(); i != child->properties().end(); ++i) { + int32_t param; + float val; + + sscanf ((*i)->name().c_str(), "param-%d", ¶m); + sscanf ((*i)->value().c_str(), "%f", &val); + + _plugin->setParameter (_plugin, param, val); + } + + /* program number is not knowable */ + + _state->current_program = -1; + + ret = 0; + + } + + Plugin::set_state (node, version); + return ret; +} + + +int +VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const +{ + VstParameterProperties prop; + + desc.min_unbound = false; + desc.max_unbound = false; + prop.flags = 0; + + if (_plugin->dispatcher (_plugin, effGetParameterProperties, which, 0, &prop, 0)) { + +#ifdef VESTIGE_COMPLETE + + /* i have yet to find or hear of a VST plugin that uses this */ + + if (prop.flags & kVstParameterUsesIntegerMinMax) { + desc.lower = prop.minInteger; + desc.upper = prop.maxInteger; + } else { + desc.lower = 0; + desc.upper = 1.0; + } + + if (prop.flags & kVstParameterUsesIntStep) { + + desc.step = prop.stepInteger; + desc.smallstep = prop.stepInteger; + desc.largestep = prop.stepInteger; + + } else if (prop.flags & kVstParameterUsesFloatStep) { + + desc.step = prop.stepFloat; + desc.smallstep = prop.smallStepFloat; + desc.largestep = prop.largeStepFloat; + + } else { + + float range = desc.upper - desc.lower; + + desc.step = range / 100.0f; + desc.smallstep = desc.step / 2.0f; + desc.largestep = desc.step * 10.0f; + } + + desc.toggled = prop.flags & kVstParameterIsSwitch; + desc.logarithmic = false; + desc.sr_dependent = false; + desc.label = prop.label; +#endif + + } else { + + /* old style */ + + char label[64]; + label[0] = '\0'; + + _plugin->dispatcher (_plugin, effGetParamName, which, 0, label, 0); + + desc.label = label; + desc.integer_step = false; + desc.lower = 0.0f; + desc.upper = 1.0f; + desc.step = 0.01f; + desc.smallstep = 0.005f; + desc.largestep = 0.1f; + desc.toggled = false; + desc.logarithmic = false; + desc.sr_dependent = false; + } + + return 0; +} + +bool +VSTPlugin::load_preset (PresetRecord r) +{ + bool s; + + if (r.user) { + s = load_user_preset (r); + } else { + s = load_plugin_preset (r); + } + + if (s) { + Plugin::load_preset (r); + } + + return s; +} + +bool +VSTPlugin::load_plugin_preset (PresetRecord r) +{ + /* This is a plugin-provided preset. + We can't dispatch directly here; too many plugins expects only one GUI thread. + */ + + /* Extract the index of this preset from the URI */ + int id; + int index; +#ifndef NDEBUG + int const p = sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index); + assert (p == 2); +#else + sscanf (r.uri.c_str(), "VST:%d:%d", &id, &index); +#endif + + _state->want_program = index; + return true; +} + +bool +VSTPlugin::load_user_preset (PresetRecord r) +{ + /* This is a user preset; we load it, and this code also knows about the + non-direct-dispatch thing. + */ + + boost::shared_ptr t (presets_tree ()); + if (t == 0) { + return false; + } + + XMLNode* root = t->root (); + + for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) { + XMLProperty* label = (*i)->property (X_("label")); + + assert (label); + + if (label->value() != r.label) { + continue; + } + + if (_plugin->flags & 32 /* effFlagsProgramsChunks */) { + + /* Load a user preset chunk from our XML file and send it via a circuitous route to the plugin */ + + if (_state->wanted_chunk) { + g_free (_state->wanted_chunk); + } + + for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) { + if ((*j)->is_content ()) { + /* we can't dispatch directly here; too many plugins expect only one GUI thread */ + gsize size = 0; + guchar* raw_data = g_base64_decode ((*j)->content().c_str(), &size); + _state->wanted_chunk = raw_data; + _state->wanted_chunk_size = size; + _state->want_chunk = 1; + return true; + } + } + + return false; + + } + else { + for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) { + if ((*j)->name() == X_("Parameter")) { + XMLProperty* index = (*j)->property (X_("index")); + XMLProperty* value = (*j)->property (X_("value")); + + assert (index); + assert (value); + + set_parameter (atoi (index->value().c_str()), atof (value->value().c_str ())); + } + } + return true; + } + } + return false; +} + +string +VSTPlugin::do_save_preset (string name) +{ + boost::shared_ptr t (presets_tree ()); + if (t == 0) { + return ""; + } + + XMLNode* p = 0; + /* XXX: use of _presets.size() + 1 for the unique ID here is dubious at best */ + string const uri = string_compose (X_("VST:%1:%2"), unique_id (), _presets.size() + 1); + + if (_plugin->flags & 32 /* effFlagsProgramsChunks */) { + + p = new XMLNode (X_("ChunkPreset")); + p->add_property (X_("uri"), uri); + p->add_property (X_("label"), name); + gchar* data = get_chunk (true); + p->add_content (string (data)); + g_free (data); + + } + else { + + p = new XMLNode (X_("Preset")); + p->add_property (X_("uri"), uri); + p->add_property (X_("label"), name); + + for (uint32_t i = 0; i < parameter_count(); ++i) { + if (parameter_is_input (i)) { + XMLNode* c = new XMLNode (X_("Parameter")); + c->add_property (X_("index"), string_compose ("%1", i)); + c->add_property (X_("value"), string_compose ("%1", get_parameter (i))); + p->add_child_nocopy (*c); + } + } + } + + t->root()->add_child_nocopy (*p); + + sys::path f = ARDOUR::user_config_directory (); + f /= "presets"; + f /= presets_file (); + + t->write (f.to_string ()); + return uri; +} + +void +VSTPlugin::do_remove_preset (string name) +{ + boost::shared_ptr t (presets_tree ()); + if (t == 0) { + return; + } + + t->root()->remove_nodes_and_delete (X_("label"), name); + + sys::path f = ARDOUR::user_config_directory (); + f /= "presets"; + f /= presets_file (); + + t->write (f.to_string ()); +} + +string +VSTPlugin::describe_parameter (Evoral::Parameter param) +{ + char name[64] = "Unkown"; + _plugin->dispatcher (_plugin, effGetParamName, param.id(), 0, name, 0); + return name; +} + +framecnt_t +VSTPlugin::signal_latency () const +{ + if (_user_latency) { + return _user_latency; + } + + return *((int32_t *) (((char *) &_plugin->flags) + 12)); /* initialDelay */ +} + +set +VSTPlugin::automatable () const +{ + set ret; + + for (uint32_t i = 0; i < parameter_count(); ++i) { + ret.insert (ret.end(), Evoral::Parameter(PluginAutomation, 0, i)); + } + + return ret; +} + +int +VSTPlugin::connect_and_run (BufferSet& bufs, + ChanMapping in_map, ChanMapping out_map, + pframes_t nframes, framecnt_t offset) +{ + Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset); + + float *ins[_plugin->numInputs]; + float *outs[_plugin->numOutputs]; + int32_t i; + + const uint32_t nbufs = bufs.count().n_audio(); + + int in_index = 0; + for (i = 0; i < (int32_t) _plugin->numInputs; ++i) { + ins[i] = bufs.get_audio(min((uint32_t) in_index, nbufs - 1)).data() + offset; + in_index++; + } + + int out_index = 0; + for (i = 0; i < (int32_t) _plugin->numOutputs; ++i) { + outs[i] = bufs.get_audio(min((uint32_t) out_index, nbufs - 1)).data() + offset; + out_index++; + } + + if (bufs.count().n_midi() > 0) { + VstEvents* v = bufs.get_vst_midi (0); + _plugin->dispatcher (_plugin, effProcessEvents, 0, 0, v, 0); + } + + /* we already know it can support processReplacing */ + _plugin->processReplacing (_plugin, ins, outs, nframes); + + return 0; +} + +string +VSTPlugin::unique_id () const +{ + char buf[32]; + + snprintf (buf, sizeof (buf), "%d", _plugin->uniqueID); + + return string (buf); +} + + +const char * +VSTPlugin::name () const +{ + return _handle->name; +} + +const char * +VSTPlugin::maker () const +{ + return _info->creator.c_str(); +} + +const char * +VSTPlugin::label () const +{ + return _handle->name; +} + +uint32_t +VSTPlugin::parameter_count () const +{ + return _plugin->numParams; +} + +bool +VSTPlugin::has_editor () const +{ + return _plugin->flags & effFlagsHasEditor; +} + +void +VSTPlugin::print_parameter (uint32_t param, char *buf, uint32_t /*len*/) const +{ + char *first_nonws; + + _plugin->dispatcher (_plugin, 7 /* effGetParamDisplay */, param, 0, buf, 0); + + if (buf[0] == '\0') { + return; + } + + first_nonws = buf; + while (*first_nonws && isspace (*first_nonws)) { + first_nonws++; + } + + if (*first_nonws == '\0') { + return; + } + + memmove (buf, first_nonws, strlen (buf) - (first_nonws - buf) + 1); +} + +void +VSTPlugin::find_presets () +{ + /* Built-in presets */ + + int const vst_version = _plugin->dispatcher (_plugin, effGetVstVersion, 0, 0, NULL, 0); + for (int i = 0; i < _plugin->numPrograms; ++i) { + PresetRecord r (string_compose (X_("VST:%1:%2"), unique_id (), i), "", false); + + if (vst_version >= 2) { + char buf[256]; + if (_plugin->dispatcher (_plugin, 29, i, 0, buf, 0) == 1) { + r.label = buf; + } else { + r.label = string_compose (_("Preset %1"), i); + } + } else { + r.label = string_compose (_("Preset %1"), i); + } + + _presets.insert (make_pair (r.uri, r)); + } + + /* User presets from our XML file */ + + boost::shared_ptr t (presets_tree ()); + + if (t) { + XMLNode* root = t->root (); + for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) { + + XMLProperty* uri = (*i)->property (X_("uri")); + XMLProperty* label = (*i)->property (X_("label")); + + assert (uri); + assert (label); + + PresetRecord r (uri->value(), label->value(), true); + _presets.insert (make_pair (r.uri, r)); + } + } + +} + +/** @return XMLTree with our user presets; could be a new one if no existing + * one was found, or 0 if one was present but badly-formatted. + */ +XMLTree * +VSTPlugin::presets_tree () const +{ + XMLTree* t = new XMLTree; + + sys::path p = ARDOUR::user_config_directory (); + p /= "presets"; + + if (!is_directory (p)) { + create_directory (p); + } + + p /= presets_file (); + + if (!exists (p)) { + t->set_root (new XMLNode (X_("VSTPresets"))); + return t; + } + + t->set_filename (p.to_string ()); + if (!t->read ()) { + delete t; + return 0; + } + + return t; +} + +/** @return Index of the first user preset in our lists */ +int +VSTPlugin::first_user_preset_index () const +{ + return _plugin->numPrograms; +} + +string +VSTPlugin::presets_file () const +{ + return string_compose ("vst-%1", unique_id ()); +} + -- 2.30.2