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-rw-r--r--src/engine/LADSPANode.cpp368
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diff --git a/src/engine/LADSPANode.cpp b/src/engine/LADSPANode.cpp
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--- a/src/engine/LADSPANode.cpp
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-/* This file is part of Ingen.
- * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
- *
- * Ingen 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.
- *
- * Ingen 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 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.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <cassert>
-#include <cmath>
-#include <map>
-#include <string>
-#include <stdint.h>
-#include <boost/optional.hpp>
-#include "shared/LV2URIMap.hpp"
-#include "raul/log.hpp"
-#include "raul/Maid.hpp"
-#include "LADSPANode.hpp"
-#include "AudioBuffer.hpp"
-#include "InputPort.hpp"
-#include "OutputPort.hpp"
-#include "PluginImpl.hpp"
-#include "ProcessContext.hpp"
-
-using namespace std;
-using namespace Raul;
-
-namespace Ingen {
-
-using namespace Shared;
-
-
-/** Partially construct a LADSPANode.
- *
- * Object is not usable until instantiate() is called with success.
- * (It _will_ crash!)
- */
-LADSPANode::LADSPANode(PluginImpl* plugin,
- const string& path,
- bool polyphonic,
- PatchImpl* parent,
- const LADSPA_Descriptor* descriptor,
- SampleRate srate)
- : NodeImpl(plugin, path, polyphonic, parent, srate)
- , _descriptor(descriptor)
- , _instances(NULL)
- , _prepared_instances(NULL)
-{
- assert(_descriptor != NULL);
-}
-
-
-LADSPANode::~LADSPANode()
-{
- delete _instances;
-}
-
-
-bool
-LADSPANode::prepare_poly(BufferFactory& bufs, uint32_t poly)
-{
- if (!_polyphonic)
- poly = 1;
-
- NodeImpl::prepare_poly(bufs, poly);
-
- if (_polyphony == poly)
- return true;
-
- _prepared_instances = new Instances(poly, *_instances, SharedPtr<Instance>());
- for (uint32_t i = _polyphony; i < _prepared_instances->size(); ++i) {
- _prepared_instances->at(i) = SharedPtr<Instance>(new Instance(_descriptor,
- _descriptor->instantiate(_descriptor, _srate)));
- if (!_prepared_instances->at(i)->handle) {
- error << "Failed to instantiate plugin" << endl;
- return false;
- }
-
- // Initialize the values of new ports
- for (uint32_t j = 0; j < num_ports(); ++j) {
- PortImpl* const port = _ports->at(j);
- Buffer* const buffer = port->prepared_buffer(i).get();
- if (buffer) {
- if (port->is_a(PortType::CONTROL)) {
- ((AudioBuffer*)buffer)->set_value(port->value().get_float(), 0, 0);
- } else {
- buffer->clear();
- }
- }
- }
-
- if (_activated && _descriptor->activate)
- _descriptor->activate(_prepared_instances->at(i)->handle);
- }
-
- return true;
-}
-
-
-bool
-LADSPANode::apply_poly(Raul::Maid& maid, uint32_t poly)
-{
- if (!_polyphonic)
- poly = 1;
-
- if (_prepared_instances) {
- maid.push(_instances);
- _instances = _prepared_instances;
- _prepared_instances = NULL;
- }
- assert(poly <= _instances->size());
-
- return NodeImpl::apply_poly(maid, poly);
-}
-
-
-/** Instantiate self from LADSPA plugin descriptor.
- *
- * Implemented as a seperate function (rather than in the constructor) to
- * allow graceful error-catching of broken plugins.
- *
- * Returns whether or not plugin was successfully instantiated. If return
- * value is false, this object may not be used.
- */
-bool
-LADSPANode::instantiate(BufferFactory& bufs)
-{
- const LV2URIMap& uris = bufs.uris();
- if (!_ports)
- _ports = new Raul::Array<PortImpl*>(_descriptor->PortCount);
-
- _instances = new Instances(_polyphony);
-
- for (uint32_t i = 0; i < _polyphony; ++i) {
- (*_instances)[i] = SharedPtr<Instance>(new Instance(
- _descriptor, _descriptor->instantiate(_descriptor, _srate)));
- if (!instance(i)) {
- error << "Failed to instantiate plugin" << endl;
- return false;
- }
- }
-
- PortImpl* port = NULL;
- std::map<Symbol, uint32_t> symbols;
-
- for (uint32_t j=0; j < _descriptor->PortCount; ++j) {
- // Convert name into valid symbol
- Symbol symbol = Symbol::symbolify(_descriptor->PortNames[j]);
-
- // Ensure symbol is unique
- std::map<Symbol, uint32_t>::iterator existing = symbols.find(symbol);
- uint32_t offset = 2;
- bool type_clash = false;
- while (existing != symbols.end()) {
- const uint32_t e = existing->second;
- if (!type_clash && LADSPA_IS_PORT_CONTROL(_descriptor->PortDescriptors[j])
- && LADSPA_IS_PORT_AUDIO(_descriptor->PortDescriptors[e])) {
- symbol = string(symbol.c_str()) + "_CR";
- type_clash = true;
- } else if (!type_clash && LADSPA_IS_PORT_AUDIO(_descriptor->PortDescriptors[j])
- && LADSPA_IS_PORT_CONTROL(_descriptor->PortDescriptors[e])) {
- symbol = string(symbol.c_str()) + "_AR";
- type_clash = true;
- } else {
- std::ostringstream ss;
- ss << symbol << "_" << offset;
- symbol = ss.str();
- }
- existing = symbols.find(symbol);
- }
-
- symbols.insert(make_pair(symbol, j));
-
- Path port_path(path().child(symbol));
-
- PortType type = PortType::AUDIO;
-
- if (LADSPA_IS_PORT_CONTROL(_descriptor->PortDescriptors[j])) {
- type = PortType::CONTROL;
- } else {
- assert(LADSPA_IS_PORT_AUDIO(_descriptor->PortDescriptors[j]));
- }
- assert (LADSPA_IS_PORT_INPUT(_descriptor->PortDescriptors[j])
- || LADSPA_IS_PORT_OUTPUT(_descriptor->PortDescriptors[j]));
-
- boost::optional<Sample> default_val, min, max;
- get_port_limits(j, default_val, min, max);
-
- const float value = default_val ? default_val.get() : 0.0f;
-
- if (LADSPA_IS_PORT_INPUT(_descriptor->PortDescriptors[j])) {
- port = new InputPort(bufs, this, symbol, j, _polyphony, type, value);
- _ports->at(j) = port;
- } else if (LADSPA_IS_PORT_OUTPUT(_descriptor->PortDescriptors[j])) {
- port = new OutputPort(bufs, this, symbol, j, _polyphony, type, value);
- _ports->at(j) = port;
- }
-
- port->set_property(uris.lv2_name, _descriptor->PortNames[j]);
-
- assert(port);
- assert(_ports->at(j) == port);
-
- // Work around broke-ass crackhead plugins
- if (default_val && default_val.get() < min.get()) {
- warn << "Broken LADSPA " << _descriptor->UniqueID
- << ": Port default < minimum. Minimum adjusted." << endl;
- min = default_val;
- }
-
- if (default_val && default_val.get() > max.get()) {
- warn << "Broken LADSPA " << _descriptor->UniqueID
- << ": Maximum adjusted." << endl;
- max = default_val;
- }
-
- // Set initial/default value
- if (type == PortType::CONTROL)
- port->set_value(value);
-
- if (port->is_input() && type == PortType::CONTROL) {
- if (min)
- port->set_meta_property(uris.lv2_minimum, min.get());
- if (max)
- port->set_meta_property(uris.lv2_maximum, max.get());
- if (default_val)
- port->set_meta_property(uris.lv2_default, default_val.get());
- }
- }
-
- return true;
-}
-
-
-void
-LADSPANode::activate(BufferFactory& bufs)
-{
- NodeImpl::activate(bufs);
-
- if (_descriptor->activate != NULL)
- for (uint32_t i = 0; i < _polyphony; ++i)
- _descriptor->activate(instance(i));
-}
-
-
-void
-LADSPANode::deactivate()
-{
- NodeImpl::deactivate();
-
- for (uint32_t i = 0; i < _polyphony; ++i)
- if (_descriptor->deactivate != NULL)
- _descriptor->deactivate(instance(i));
-}
-
-
-void
-LADSPANode::process(ProcessContext& context)
-{
- NodeImpl::pre_process(context);
-
- for (uint32_t i = 0; i < _polyphony; ++i)
- _descriptor->run(instance(i), context.nframes());
-
- NodeImpl::post_process(context);
-}
-
-
-void
-LADSPANode::set_port_buffer(uint32_t voice, uint32_t port_num,
- IntrusivePtr<Buffer> buf, SampleCount offset)
-{
- NodeImpl::set_port_buffer(voice, port_num, buf, offset);
-
- _descriptor->connect_port(instance(voice), port_num,
- buf ? (LADSPA_Data*)buf->port_data(_ports->at(port_num)->buffer_type(), offset) : NULL);
-}
-
-
-void
-LADSPANode::get_port_limits(unsigned long port_index,
- boost::optional<Sample>& normal,
- boost::optional<Sample>& lower,
- boost::optional<Sample>& upper)
-{
- LADSPA_PortRangeHintDescriptor hint_descriptor = _descriptor->PortRangeHints[port_index].HintDescriptor;
-
- /* set upper and lower, possibly adjusted to the sample rate */
- if (LADSPA_IS_HINT_SAMPLE_RATE(hint_descriptor)) {
- upper = _descriptor->PortRangeHints[port_index].UpperBound * _srate;
- lower = _descriptor->PortRangeHints[port_index].LowerBound * _srate;
- } else {
- upper = _descriptor->PortRangeHints[port_index].UpperBound;
- lower = _descriptor->PortRangeHints[port_index].LowerBound;
- }
-
- if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- /* FLT_EPSILON is defined as the different between 1.0 and the minimum
- * float greater than 1.0. So, if lower is < FLT_EPSILON, it will be 1.0
- * and the logarithmic control will have a base of 1 and thus not change
- */
- if (lower.get() < FLT_EPSILON) lower = FLT_EPSILON;
- }
-
-
- if (LADSPA_IS_HINT_HAS_DEFAULT(hint_descriptor)) {
-
- if (LADSPA_IS_HINT_DEFAULT_MINIMUM(hint_descriptor)) {
- normal = lower;
- } else if (LADSPA_IS_HINT_DEFAULT_LOW(hint_descriptor)) {
- assert(lower);
- assert(upper);
- if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- normal = exp(log(lower.get()) * 0.75 + log(upper.get()) * 0.25);
- } else {
- normal = lower.get() * 0.75 + upper.get() * 0.25;
- }
- } else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(hint_descriptor)) {
- assert(lower);
- assert(upper);
- if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- normal = exp(log(lower.get()) * 0.5 + log(upper.get()) * 0.5);
- } else {
- normal = lower.get() * 0.5 + upper.get() * 0.5;
- }
- } else if (LADSPA_IS_HINT_DEFAULT_HIGH(hint_descriptor)) {
- assert(lower);
- assert(upper);
- if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- normal = exp(log(lower.get()) * 0.25 + log(upper.get()) * 0.75);
- } else {
- normal = lower.get() * 0.25 + upper.get() * 0.75;
- }
- } else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(hint_descriptor)) {
- assert(upper);
- normal = upper.get();
- } else if (LADSPA_IS_HINT_DEFAULT_0(hint_descriptor)) {
- normal = 0.0;
- } else if (LADSPA_IS_HINT_DEFAULT_1(hint_descriptor)) {
- normal = 1.0;
- } else if (LADSPA_IS_HINT_DEFAULT_100(hint_descriptor)) {
- normal = 100.0;
- } else if (LADSPA_IS_HINT_DEFAULT_440(hint_descriptor)) {
- normal = 440.0;
- }
- } else { // No default hint
- if (LADSPA_IS_HINT_BOUNDED_BELOW(hint_descriptor)) {
- assert(lower);
- normal = lower.get();
- } else if (LADSPA_IS_HINT_BOUNDED_ABOVE(hint_descriptor)) {
- assert(upper);
- normal = upper.get();
- }
- }
-}
-
-
-} // namespace Ingen
-
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