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-rw-r--r--src/libs/engine/DSSINode.cpp338
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diff --git a/src/libs/engine/DSSINode.cpp b/src/libs/engine/DSSINode.cpp
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+++ b/src/libs/engine/DSSINode.cpp
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+/* This file is part of Om. Copyright (C) 2006 Dave Robillard.
+ *
+ * Om 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.
+ *
+ * Om 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.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "DSSINode.h"
+#include <map>
+#include <set>
+#include "Om.h"
+#include "OmApp.h"
+#include "ClientBroadcaster.h"
+#include "interface/ClientInterface.h"
+#include "InputPort.h"
+
+using namespace std;
+
+namespace Om {
+
+
+DSSINode::DSSINode(const Plugin* plugin, const string& name, size_t poly, Patch* parent, DSSI_Descriptor* descriptor, samplerate srate, size_t buffer_size)
+: LADSPANode(plugin, name, 1, parent, descriptor->LADSPA_Plugin, srate, buffer_size),
+ _dssi_descriptor(descriptor),
+ _ui_addr(NULL),
+ _bank(-1),
+ _program(-1),
+ _midi_in_port(NULL),
+ _alsa_events(new snd_seq_event_t[_buffer_size]),
+ _alsa_encoder(NULL)
+{
+ snd_midi_event_new(3, &_alsa_encoder);
+}
+
+
+DSSINode::~DSSINode()
+{
+ if (_ui_addr != NULL)
+ lo_address_free(_ui_addr);
+
+ snd_midi_event_free(_alsa_encoder);
+ delete [] _alsa_events;
+}
+
+
+/** This needs to be overridden here because LADSPANode::instantiate()
+ * allocates the port array, and we want to add the MIDI input port to that
+ * array.
+ */
+bool
+DSSINode::instantiate()
+{
+ assert(!_ports);
+
+ if (has_midi_input()) {
+ _ports = new Array<Port*>(_descriptor->PortCount + 1);
+ _midi_in_port = new InputPort<MidiMessage>(this, "MIDI In", _ports->size()-1, 1, DataType::MIDI, _buffer_size);
+ _ports->at(_ports->size()-1) = _midi_in_port;
+ }
+
+ // LADSPANode::instantiate checks if _ports is already allocated
+ if (!LADSPANode::instantiate()) {
+ delete _ports;
+ return false;
+ }
+
+ return true;
+}
+
+
+void
+DSSINode::activate()
+{
+ LADSPANode::activate();
+
+ update_programs(false);
+ set_default_program();
+
+ snd_midi_event_reset_encode(_alsa_encoder);
+}
+
+
+void
+DSSINode::set_ui_url(const string& url)
+{
+ if (_ui_addr != NULL)
+ lo_address_free(_ui_addr);
+
+ _ui_url = url;
+ _ui_addr = lo_address_new_from_url(url.c_str());
+ char* base_path = lo_url_get_path(url.c_str());
+ _ui_base_path = base_path;
+ free(base_path);
+ cerr << "Set UI base path to " << _ui_base_path << endl;
+}
+
+
+void
+DSSINode::set_control(size_t port_num, sample val)
+{
+ assert(port_num < _descriptor->PortCount);
+ ((PortBase<sample>*)_ports->at(port_num))->set_value(val, 0);
+}
+
+
+void
+DSSINode::configure(const string& key, const string& val)
+{
+ _dssi_descriptor->configure(_instances[0], key.c_str(), val.c_str());
+ _configures[key] = val;
+ update_programs(true);
+}
+
+
+void
+DSSINode::program(int bank, int program)
+{
+ if (_dssi_descriptor->select_program)
+ _dssi_descriptor->select_program(_instances[0], bank, program);
+
+ _bank = bank;
+ _program = program;
+}
+
+
+void
+DSSINode::convert_events()
+{
+ assert(has_midi_input());
+ assert(_midi_in_port != NULL);
+
+ Buffer<MidiMessage>& buffer = *_midi_in_port->buffer(0);
+ _encoded_events = 0;
+
+ for (size_t i = 0; i < buffer.filled_size(); ++i) {
+ snd_midi_event_encode(_alsa_encoder, buffer.value_at(i).buffer,
+ buffer.value_at(i).size,
+ &_alsa_events[_encoded_events]);
+ _alsa_events[_encoded_events].time.tick = buffer.value_at(i).time;
+ if (_alsa_events[_encoded_events].type != SND_SEQ_EVENT_NONE)
+ ++_encoded_events;
+ }
+}
+
+
+bool
+DSSINode::has_midi_input() const
+{
+ return (_dssi_descriptor->run_synth || _dssi_descriptor->run_multiple_synths);
+}
+
+
+void
+DSSINode::run(size_t nframes)
+{
+ NodeBase::run(nframes);
+
+ if (_dssi_descriptor->run_synth) {
+ convert_events();
+ _dssi_descriptor->run_synth(_instances[0], nframes,
+ _alsa_events, _encoded_events);
+ } else if (_dssi_descriptor->run_multiple_synths) {
+ convert_events();
+ // I hate this stupid function
+ snd_seq_event_t* events[1] = { _alsa_events };
+ long unsigned events_sizes[1] = { _encoded_events };
+ _dssi_descriptor->run_multiple_synths(1, _instances, nframes,
+ events, events_sizes);
+ } else {
+ LADSPANode::run(nframes);
+ }
+}
+
+
+void
+DSSINode::send_control(int port_num, float value)
+{
+ string path = _ui_base_path + "/control";
+ lo_send(_ui_addr, path.c_str(), "if", port_num, value);
+}
+
+
+void
+DSSINode::send_program(int bank, int value)
+{
+ string path = _ui_base_path + "/program";
+ lo_send(_ui_addr, path.c_str(), "ii", bank, value);
+}
+
+
+void
+DSSINode::send_configure(const string& key, const string& val)
+{
+ string path = _ui_base_path + "/configure";
+ lo_send(_ui_addr, path.c_str(), "ss", key.c_str(), val.c_str());
+}
+
+
+void
+DSSINode::send_show()
+{
+ string path = _ui_base_path + "/show";
+ lo_send(_ui_addr, path.c_str(), NULL);
+}
+
+
+void
+DSSINode::send_hide()
+{
+ string path = _ui_base_path + "/hide";
+ lo_send(_ui_addr, path.c_str(), NULL);
+}
+
+
+void
+DSSINode::send_quit()
+{
+ string path = _ui_base_path + "/quit";
+ lo_send(_ui_addr, path.c_str(), NULL);
+}
+
+
+void
+DSSINode::send_update()
+{
+ // send "configure"s
+ for (map<string, string>::iterator i = _configures.begin(); i != _configures.end(); ++i)
+ send_configure((*i).first, (*i).second);
+
+ // send "program"
+ send_program(_bank, _program);
+
+ // send "control"s
+ for (size_t i=0; i < _ports->size(); ++i)
+ if (_ports->at(i)->type() == DataType::FLOAT && _ports->at(i)->buffer_size() == 1)
+ send_control(_ports->at(i)->num(), ((PortBase<sample>*)_ports->at(i))->buffer(0)->value_at(0));
+
+ // send "show" FIXME: not to spec
+ send_show();
+}
+
+
+bool
+DSSINode::update_programs(bool send_events)
+{
+ // remember all old banks and programs
+ set<pair<int, int> > to_be_deleted;
+ map<int, Bank>::const_iterator iter;
+ Bank::const_iterator iter2;
+ for (iter = _banks.begin(); iter != _banks.end(); ++iter) {
+ for (iter2 = iter->second.begin(); iter2 != iter->second.end(); ++iter2) {
+ to_be_deleted.insert(make_pair(iter->first, iter2->first));
+ }
+ }
+
+ // iterate over all programs
+ if (_dssi_descriptor->get_program) {
+ for (int i = 0; true; ++i) {
+ const DSSI_Program_Descriptor* descriptor =
+ _dssi_descriptor->get_program(_instances[0], i);
+ if (!descriptor)
+ break;
+
+ iter = _banks.find(descriptor->Bank);
+ if (iter == _banks.end() ||
+ iter->second.find(descriptor->Program) == iter->second.end() ||
+ iter->second.find(descriptor->Program)->second != descriptor->Name) {
+ _banks[descriptor->Bank][descriptor->Program] = descriptor->Name;
+ if (send_events) {
+ om->client_broadcaster()->send_program_add(path(), descriptor->Bank,
+ descriptor->Program,
+ descriptor->Name);
+ }
+ to_be_deleted.erase(make_pair(descriptor->Bank, descriptor->Program));
+ }
+ }
+ }
+
+ // remove programs that has disappeared from the plugin
+ set<pair<int, int> >::const_iterator set_iter;
+ for (set_iter = to_be_deleted.begin();
+ set_iter != to_be_deleted.end(); ++set_iter) {
+ _banks[set_iter->first].erase(set_iter->second);
+ if (send_events)
+ om->client_broadcaster()->send_program_remove(path(), set_iter->first, set_iter->second);
+ if (_banks[set_iter->first].size() == 0)
+ _banks.erase(set_iter->first);
+ }
+
+ return true;
+}
+
+
+void
+DSSINode::set_default_program()
+{
+ map<int, Bank>::const_iterator iter = _banks.begin();
+ if (iter != _banks.end()) {
+ Bank::const_iterator iter2 = iter->second.begin();
+ if (iter2 != iter->second.end())
+ program(iter->first, iter2->first);
+ }
+}
+
+
+const map<int, DSSINode::Bank>&
+DSSINode::get_programs() const
+{
+ return _banks;
+}
+
+
+/*
+void
+DSSINode::send_creation_messages(ClientInterface* client) const
+{
+ LADSPANode::send_creation_messages(client);
+
+ for (map<int, Bank>::const_iterator i = get_programs().begin();
+ i != get_programs().end(); ++i) {
+
+ for (Bank::const_iterator j = i->second.begin(); j != i->second.end(); ++j)
+ client->program_add(path(),
+ i->first, j->first, j->second);
+ }
+}
+*/
+
+} // namespace Om