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Diffstat (limited to 'libs/ardour/ladspa_plugin.cc')
| -rw-r--r-- | libs/ardour/ladspa_plugin.cc | 663 |
1 files changed, 0 insertions, 663 deletions
diff --git a/libs/ardour/ladspa_plugin.cc b/libs/ardour/ladspa_plugin.cc deleted file mode 100644 index 29f2d16767..0000000000 --- a/libs/ardour/ladspa_plugin.cc +++ /dev/null @@ -1,663 +0,0 @@ -/* - Copyright (C) 2000-2006 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. - -*/ - -#define __STDC_FORMAT_MACROS 1 -#include <inttypes.h> - -#include <vector> -#include <string> - -#include <cstdlib> -#include <cstdio> // so libraptor doesn't complain -#include <cmath> -#include <dirent.h> -#include <sys/stat.h> -#include <cerrno> - -#include <lrdf.h> - -#include <pbd/compose.h> -#include <pbd/error.h> -#include <pbd/xml++.h> - -#include <midi++/manager.h> - -#include <ardour/ardour.h> -#include <ardour/session.h> -#include <ardour/audioengine.h> -#include <ardour/ladspa_plugin.h> -#include <ardour/buffer_set.h> - -#include <pbd/stl_delete.h> - -#include "i18n.h" -#include <locale.h> - -using namespace std; -using namespace ARDOUR; -using namespace PBD; - -LadspaPlugin::LadspaPlugin (void *mod, AudioEngine& e, Session& session, uint32_t index, nframes_t rate) - : Plugin (e, session) -{ - init (mod, index, rate); -} - -LadspaPlugin::LadspaPlugin (const LadspaPlugin &other) - : Plugin (other) -{ - init (other._module, other._index, other._sample_rate); - - for (uint32_t i = 0; i < parameter_count(); ++i) { - _control_data[i] = other._shadow_data[i]; - _shadow_data[i] = other._shadow_data[i]; - } -} - -void -LadspaPlugin::init (void *mod, uint32_t index, nframes_t rate) -{ - LADSPA_Descriptor_Function dfunc; - uint32_t i, port_cnt; - const char *errstr; - - _module = mod; - _control_data = 0; - _shadow_data = 0; - _latency_control_port = 0; - _was_activated = false; - - dfunc = (LADSPA_Descriptor_Function) dlsym (_module, "ladspa_descriptor"); - - if ((errstr = dlerror()) != NULL) { - error << _("LADSPA: module has no descriptor function.") << endmsg; - throw failed_constructor(); - } - - if ((_descriptor = dfunc (index)) == 0) { - error << _("LADSPA: plugin has gone away since discovery!") << endmsg; - throw failed_constructor(); - } - - _index = index; - - if (LADSPA_IS_INPLACE_BROKEN(_descriptor->Properties)) { - error << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), _descriptor->Name) << endmsg; - throw failed_constructor(); - } - - _sample_rate = rate; - - if (_descriptor->instantiate == 0) { - throw failed_constructor(); - } - - if ((_handle = _descriptor->instantiate (_descriptor, rate)) == 0) { - throw failed_constructor(); - } - - port_cnt = parameter_count(); - - _control_data = new LADSPA_Data[port_cnt]; - _shadow_data = new LADSPA_Data[port_cnt]; - - for (i = 0; i < port_cnt; ++i) { - if (LADSPA_IS_PORT_CONTROL(port_descriptor (i))) { - connect_port (i, &_control_data[i]); - - if (LADSPA_IS_PORT_OUTPUT(port_descriptor (i)) && - strcmp (port_names()[i], X_("latency")) == 0) { - _latency_control_port = &_control_data[i]; - *_latency_control_port = 0; - } - - if (!LADSPA_IS_PORT_INPUT(port_descriptor (i))) { - continue; - } - - _shadow_data[i] = default_value (i); - } - } - - latency_compute_run (); -} - -LadspaPlugin::~LadspaPlugin () -{ - deactivate (); - cleanup (); - - GoingAway (); /* EMIT SIGNAL */ - - /* XXX who should close a plugin? */ - - // dlclose (module); - - if (_control_data) { - delete [] _control_data; - } - - if (_shadow_data) { - delete [] _shadow_data; - } -} - -string -LadspaPlugin::unique_id() const -{ - char buf[32]; - snprintf (buf, sizeof (buf), "%lu", _descriptor->UniqueID); - return string (buf); -} - -float -LadspaPlugin::default_value (uint32_t port) -{ - const LADSPA_PortRangeHint *prh = port_range_hints(); - float ret = 0.0f; - bool bounds_given = false; - bool sr_scaling = false; - bool earlier_hint = false; - - /* defaults - case 1 */ - - if (LADSPA_IS_HINT_HAS_DEFAULT(prh[port].HintDescriptor)) { - if (LADSPA_IS_HINT_DEFAULT_MINIMUM(prh[port].HintDescriptor)) { - ret = prh[port].LowerBound; - bounds_given = true; - sr_scaling = true; - earlier_hint = true; - } - - /* FIXME: add support for logarithmic defaults */ - - else if (LADSPA_IS_HINT_DEFAULT_LOW(prh[port].HintDescriptor)) { - ret = prh[port].LowerBound * 0.75f + prh[port].UpperBound * 0.25f; - bounds_given = true; - sr_scaling = true; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(prh[port].HintDescriptor)) { - ret = prh[port].LowerBound * 0.50f + prh[port].UpperBound * 0.50f; - bounds_given = true; - sr_scaling = true; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_HIGH(prh[port].HintDescriptor)) { - ret = prh[port].LowerBound * 0.25f + prh[port].UpperBound * 0.75f; - bounds_given = true; - sr_scaling = true; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(prh[port].HintDescriptor)) { - ret = prh[port].UpperBound; - bounds_given = true; - sr_scaling = true; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_0(prh[port].HintDescriptor)) { - ret = 0.0f; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_1(prh[port].HintDescriptor)) { - ret = 1.0f; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_100(prh[port].HintDescriptor)) { - ret = 100.0f; - earlier_hint = true; - } - else if (LADSPA_IS_HINT_DEFAULT_440(prh[port].HintDescriptor)) { - ret = 440.0f; - earlier_hint = true; - } - else { - /* no hint found */ - ret = 0.0f; - } - } - - /* defaults - case 2 */ - else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) && - !LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) { - - if (prh[port].LowerBound < 0) { - ret = 0.0f; - } else { - ret = prh[port].LowerBound; - } - - bounds_given = true; - sr_scaling = true; - } - - /* defaults - case 3 */ - else if (!LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) && - LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) { - - if (prh[port].UpperBound > 0) { - ret = 0.0f; - } else { - ret = prh[port].UpperBound; - } - - bounds_given = true; - sr_scaling = true; - } - - /* defaults - case 4 */ - else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) && - LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) { - - if (prh[port].LowerBound < 0 && prh[port].UpperBound > 0) { - ret = 0.0f; - } else if (prh[port].LowerBound < 0 && prh[port].UpperBound < 0) { - ret = prh[port].UpperBound; - } else { - ret = prh[port].LowerBound; - } - bounds_given = true; - sr_scaling = true; - } - - /* defaults - case 5 */ - - if (LADSPA_IS_HINT_SAMPLE_RATE(prh[port].HintDescriptor) && !earlier_hint) { - if (bounds_given) { - if (sr_scaling) { - ret *= _sample_rate; - } - } else { - ret = _sample_rate; - } - } - - return ret; -} - -void -LadspaPlugin::set_parameter (uint32_t which, float val) -{ - if (which < _descriptor->PortCount) { - _shadow_data[which] = (LADSPA_Data) val; -#if 0 - ParameterChanged (Parameter(PluginAutomation, which), val); /* EMIT SIGNAL */ - - if (which < parameter_count() && controls[which]) { - controls[which]->Changed (); - } -#endif - - } else { - warning << string_compose (_("illegal parameter number used with plugin \"%1\". This may" - "indicate a change in the plugin design, and presets may be" - "invalid"), name()) - << endmsg; - } -} - -float -LadspaPlugin::get_parameter (uint32_t which) const -{ - if (LADSPA_IS_PORT_INPUT(port_descriptor (which))) { - return (float) _shadow_data[which]; - } else { - return (float) _control_data[which]; - } -} - -uint32_t -LadspaPlugin::nth_parameter (uint32_t n, bool& ok) const -{ - uint32_t x, c; - - ok = false; - - for (c = 0, x = 0; x < _descriptor->PortCount; ++x) { - if (LADSPA_IS_PORT_CONTROL (port_descriptor (x))) { - if (c++ == n) { - ok = true; - return x; - } - } - } - return 0; -} - -XMLNode& -LadspaPlugin::get_state() -{ - XMLNode *root = new XMLNode(state_node_name()); - XMLNode *child; - char buf[16]; - LocaleGuard lg (X_("POSIX")); - - for (uint32_t i = 0; i < parameter_count(); ++i){ - - if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && - LADSPA_IS_PORT_CONTROL(port_descriptor (i))){ - - child = new XMLNode("port"); - snprintf(buf, sizeof(buf), "%u", i); - child->add_property("number", string(buf)); - snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]); - child->add_property("value", string(buf)); - root->add_child_nocopy (*child); - } - } - - return *root; -} - -bool -LadspaPlugin::save_preset (string name) -{ - return Plugin::save_preset (name, "ladspa"); -} - -int -LadspaPlugin::set_state(const XMLNode& node) -{ - XMLNodeList nodes; - XMLProperty *prop; - XMLNodeConstIterator iter; - XMLNode *child; - const char *port; - const char *data; - uint32_t port_id; - LocaleGuard lg (X_("POSIX")); - - if (node.name() != state_node_name()) { - error << _("Bad node sent to LadspaPlugin::set_state") << endmsg; - return -1; - } - - nodes = node.children ("port"); - - for(iter = nodes.begin(); iter != nodes.end(); ++iter){ - - child = *iter; - - if ((prop = child->property("number")) != 0) { - port = prop->value().c_str(); - } else { - warning << _("LADSPA: no ladspa port number") << endmsg; - continue; - } - if ((prop = child->property("value")) != 0) { - data = prop->value().c_str(); - } else { - warning << _("LADSPA: no ladspa port data") << endmsg; - continue; - } - - sscanf (port, "%" PRIu32, &port_id); - set_parameter (port_id, atof(data)); - } - - latency_compute_run (); - - return 0; -} - -int -LadspaPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const -{ - LADSPA_PortRangeHint prh; - - prh = port_range_hints()[which]; - - - if (LADSPA_IS_HINT_BOUNDED_BELOW(prh.HintDescriptor)) { - desc.min_unbound = false; - if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) { - desc.lower = prh.LowerBound * _session.frame_rate(); - } else { - desc.lower = prh.LowerBound; - } - } else { - desc.min_unbound = true; - desc.lower = 0; - } - - - if (LADSPA_IS_HINT_BOUNDED_ABOVE(prh.HintDescriptor)) { - desc.max_unbound = false; - if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) { - desc.upper = prh.UpperBound * _session.frame_rate(); - } else { - desc.upper = prh.UpperBound; - } - } else { - desc.max_unbound = true; - desc.upper = 4; /* completely arbitrary */ - } - - if (LADSPA_IS_HINT_INTEGER (prh.HintDescriptor)) { - desc.step = 1.0; - desc.smallstep = 0.1; - desc.largestep = 10.0; - } else { - float delta = desc.upper - desc.lower; - desc.step = delta / 1000.0f; - desc.smallstep = delta / 10000.0f; - desc.largestep = delta/10.0f; - } - - desc.toggled = LADSPA_IS_HINT_TOGGLED (prh.HintDescriptor); - desc.logarithmic = LADSPA_IS_HINT_LOGARITHMIC (prh.HintDescriptor); - desc.sr_dependent = LADSPA_IS_HINT_SAMPLE_RATE (prh.HintDescriptor); - desc.integer_step = LADSPA_IS_HINT_INTEGER (prh.HintDescriptor); - - desc.label = port_names()[which]; - - return 0; -} - -string -LadspaPlugin::describe_parameter (Parameter which) -{ - if (which.type() == PluginAutomation && which.id() < parameter_count()) { - return port_names()[which.id()]; - } else { - return "??"; - } -} - -ARDOUR::nframes_t -LadspaPlugin::signal_latency () const -{ - if (_user_latency) { - return _user_latency; - } - - if (_latency_control_port) { - return (nframes_t) floor (*_latency_control_port); - } else { - return 0; - } -} - -set<Parameter> -LadspaPlugin::automatable () const -{ - set<Parameter> ret; - - for (uint32_t i = 0; i < parameter_count(); ++i){ - if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && - LADSPA_IS_PORT_CONTROL(port_descriptor (i))){ - - ret.insert (ret.end(), Parameter(PluginAutomation, i)); - } - } - - return ret; -} - -int -LadspaPlugin::connect_and_run (BufferSet& bufs, uint32_t& in_index, uint32_t& out_index, nframes_t nframes, nframes_t offset) -{ - uint32_t port_index = 0; - cycles_t then, now; - - then = get_cycles (); - - const uint32_t nbufs = bufs.count().n_audio(); - - while (port_index < parameter_count()) { - if (LADSPA_IS_PORT_AUDIO (port_descriptor(port_index))) { - if (LADSPA_IS_PORT_INPUT (port_descriptor(port_index))) { - const size_t index = min(in_index, nbufs - 1); - connect_port (port_index, bufs.get_audio(index).data(nframes, offset)); - //cerr << this << ' ' << name() << " @ " << offset << " inport " << in_index << " = buf " - // << min((uint32_t)in_index,nbufs) << " = " << &bufs[min((uint32_t)in_index,nbufs)][offset] << endl; - in_index++; - - - } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) { - const size_t index = min(out_index,nbufs - 1); - connect_port (port_index, bufs.get_audio(index).data(nframes, offset)); - // cerr << this << ' ' << name() << " @ " << offset << " outport " << out_index << " = buf " - // << min((uint32_t)out_index,nbufs) << " = " << &bufs[min((uint32_t)out_index,nbufs)][offset] << endl; - out_index++; - } - } - port_index++; - } - - run_in_place (nframes); - now = get_cycles (); - set_cycles ((uint32_t) (now - then)); - - return 0; -} - -bool -LadspaPlugin::parameter_is_control (uint32_t param) const -{ - return LADSPA_IS_PORT_CONTROL(port_descriptor (param)); -} - -bool -LadspaPlugin::parameter_is_audio (uint32_t param) const -{ - return LADSPA_IS_PORT_AUDIO(port_descriptor (param)); -} - -bool -LadspaPlugin::parameter_is_output (uint32_t param) const -{ - return LADSPA_IS_PORT_OUTPUT(port_descriptor (param)); -} - -bool -LadspaPlugin::parameter_is_input (uint32_t param) const -{ - return LADSPA_IS_PORT_INPUT(port_descriptor (param)); -} - -void -LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const -{ - if (buf && len) { - if (param < parameter_count()) { - snprintf (buf, len, "%.3f", get_parameter (param)); - } else { - strcat (buf, "0"); - } - } -} - -void -LadspaPlugin::run_in_place (nframes_t nframes) -{ - for (uint32_t i = 0; i < parameter_count(); ++i) { - if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && LADSPA_IS_PORT_CONTROL(port_descriptor (i))) { - _control_data[i] = _shadow_data[i]; - } - } - _descriptor->run (_handle, nframes); -} - -void -LadspaPlugin::latency_compute_run () -{ - if (!_latency_control_port) { - return; - } - - /* we need to run the plugin so that it can set its latency - parameter. - */ - - activate (); - - uint32_t port_index = 0; - uint32_t in_index = 0; - uint32_t out_index = 0; - const nframes_t bufsize = 1024; - LADSPA_Data buffer[bufsize]; - - memset(buffer,0,sizeof(LADSPA_Data)*bufsize); - - /* Note that we've already required that plugins - be able to handle in-place processing. - */ - - port_index = 0; - - while (port_index < parameter_count()) { - if (LADSPA_IS_PORT_AUDIO (port_descriptor (port_index))) { - if (LADSPA_IS_PORT_INPUT (port_descriptor (port_index))) { - connect_port (port_index, buffer); - in_index++; - } else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) { - connect_port (port_index, buffer); - out_index++; - } - } - port_index++; - } - - run_in_place (bufsize); - deactivate (); -} - -PluginPtr -LadspaPluginInfo::load (Session& session) -{ - try { - PluginPtr plugin; - void *module; - - if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) { - error << string_compose(_("LADSPA: cannot load module from \"%1\""), path) << endmsg; - error << dlerror() << endmsg; - } else { - plugin.reset (new LadspaPlugin (module, session.engine(), session, index, session.frame_rate())); - } - - plugin->set_info(PluginInfoPtr(new LadspaPluginInfo(*this))); - return plugin; - } - - catch (failed_constructor &err) { - return PluginPtr ((Plugin*) 0); - } -} |