+/*
+ Copyright (C) 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 <stdint.h>
+
+#include <algorithm>
+
+#include <pbd/error.h>
+#include <pbd/failed_constructor.h>
+
#include <midi++/port.h>
+#include <midi++/manager.h>
#include <ardour/route.h>
#include <ardour/session.h>
#include "generic_midi_control_protocol.h"
+#include "midicontrollable.h"
using namespace ARDOUR;
+using namespace PBD;
#include "i18n.h"
GenericMidiControlProtocol::GenericMidiControlProtocol (Session& s)
- : ControlProtocol (s, _("GenericMIDI"))
+ : ControlProtocol (s, _("Generic MIDI"))
{
- _port = s.midi_port();
- s.MIDI_PortChanged.connect (mem_fun (*this, &GenericMidiControlProtocol::port_change));
+ MIDI::Manager* mm = MIDI::Manager::instance();
+
+ /* XXX it might be nice to run "control" through i18n, but thats a bit tricky because
+ the name is defined in ardour.rc which is likely not internationalized.
+ */
+ _port = mm->port (X_("control"));
+
+ if (_port == 0) {
+ error << _("no MIDI port named \"control\" exists - generic MIDI control disabled") << endmsg;
+ throw failed_constructor();
+ }
+
+ do_feedback = false;
+ _feedback_interval = 10000; // microseconds
+ last_feedback_time = 0;
+
+ auto_binding = FALSE;
+
+ Controllable::StartLearning.connect (mem_fun (*this, &GenericMidiControlProtocol::start_learning));
+ Controllable::StopLearning.connect (mem_fun (*this, &GenericMidiControlProtocol::stop_learning));
+ Session::SendFeedback.connect (mem_fun (*this, &GenericMidiControlProtocol::send_feedback));
+
+ Controllable::CreateBinding.connect (mem_fun (*this, &GenericMidiControlProtocol::create_binding));
+ Controllable::DeleteBinding.connect (mem_fun (*this, &GenericMidiControlProtocol::delete_binding));
+
+ Session::AutoBindingOn.connect (mem_fun (*this, &GenericMidiControlProtocol::auto_binding_on));
+ Session::AutoBindingOff.connect (mem_fun (*this, &GenericMidiControlProtocol::auto_binding_off));
}
GenericMidiControlProtocol::~GenericMidiControlProtocol ()
}
int
-GenericMidiControlProtocol::set_active (bool yn)
+GenericMidiControlProtocol::set_active (bool /*yn*/)
{
- /* start delivery/outbound thread */
+ /* start/stop delivery/outbound thread */
return 0;
}
void
-GenericMidiControlProtocol::port_change ()
+GenericMidiControlProtocol::set_feedback_interval (microseconds_t ms)
{
- _port = session->midi_port ();
+ _feedback_interval = ms;
}
-void
-GenericMidiControlProtocol::set_port (MIDI::Port* p)
+void
+GenericMidiControlProtocol::send_feedback ()
{
- _port = p;
+ if (!do_feedback) {
+ return;
+ }
+
+ microseconds_t now = get_microseconds ();
+
+ if (last_feedback_time != 0) {
+ if ((now - last_feedback_time) < _feedback_interval) {
+ return;
+ }
+ }
+
+ _send_feedback ();
+
+ last_feedback_time = now;
}
void
-GenericMidiControlProtocol::send_route_feedback (list<Route*>& routes)
+GenericMidiControlProtocol::_send_feedback ()
+{
+ const int32_t bufsize = 16 * 1024; /* XXX too big */
+ MIDI::byte buf[bufsize];
+ int32_t bsize = bufsize;
+ MIDI::byte* end = buf;
+
+ for (MIDIControllables::iterator r = controllables.begin(); r != controllables.end(); ++r) {
+ end = (*r)->write_feedback (end, bsize);
+ }
+
+ if (end == buf) {
+ return;
+ }
+
+ _port->write (buf, (int32_t) (end - buf), 0);
+}
+
+bool
+GenericMidiControlProtocol::start_learning (Controllable* c)
+{
+ if (c == 0) {
+ return false;
+ }
+
+ MIDIControllables::iterator tmp;
+ for (MIDIControllables::iterator i = controllables.begin(); i != controllables.end(); ) {
+ tmp = i;
+ ++tmp;
+ if (&(*i)->get_controllable() == c) {
+ delete (*i);
+ controllables.erase (i);
+ }
+ i = tmp;
+ }
+
+ MIDIPendingControllables::iterator ptmp;
+ for (MIDIPendingControllables::iterator i = pending_controllables.begin(); i != pending_controllables.end(); ) {
+ ptmp = i;
+ ++ptmp;
+ if (&((*i).first)->get_controllable() == c) {
+ (*i).second.disconnect();
+ delete (*i).first;
+ pending_controllables.erase (i);
+ }
+ i = ptmp;
+ }
+
+
+ MIDIControllable* mc = 0;
+
+ for (MIDIControllables::iterator i = controllables.begin(); i != controllables.end(); ++i) {
+ if ((*i)->get_controllable().id() == c->id()) {
+ mc = *i;
+ break;
+ }
+ }
+
+ if (!mc) {
+ mc = new MIDIControllable (*_port, *c);
+ }
+
+ {
+ Glib::Mutex::Lock lm (pending_lock);
+
+ std::pair<MIDIControllable *, sigc::connection> element;
+ element.first = mc;
+ element.second = c->LearningFinished.connect (bind (mem_fun (*this, &GenericMidiControlProtocol::learning_stopped), mc));
+
+ pending_controllables.push_back (element);
+ }
+
+ mc->learn_about_external_control ();
+ return true;
+}
+
+void
+GenericMidiControlProtocol::learning_stopped (MIDIControllable* mc)
+{
+ Glib::Mutex::Lock lm (pending_lock);
+ Glib::Mutex::Lock lm2 (controllables_lock);
+
+ MIDIPendingControllables::iterator tmp;
+
+ for (MIDIPendingControllables::iterator i = pending_controllables.begin(); i != pending_controllables.end(); ) {
+ tmp = i;
+ ++tmp;
+
+ if ( (*i).first == mc) {
+ (*i).second.disconnect();
+ pending_controllables.erase(i);
+ }
+
+ i = tmp;
+ }
+
+ controllables.insert (mc);
+}
+
+void
+GenericMidiControlProtocol::stop_learning (Controllable* c)
{
- if (_port != 0) {
+ Glib::Mutex::Lock lm (pending_lock);
+ Glib::Mutex::Lock lm2 (controllables_lock);
+ MIDIControllable* dptr = 0;
- const int32_t bufsize = 16 * 1024;
- MIDI::byte buf[bufsize];
- int32_t bsize = bufsize;
- MIDI::byte* end = buf;
+ /* learning timed out, and we've been told to consider this attempt to learn to be cancelled. find the
+ relevant MIDIControllable and remove it from the pending list.
+ */
+
+ for (MIDIPendingControllables::iterator i = pending_controllables.begin(); i != pending_controllables.end(); ++i) {
+ if (&((*i).first)->get_controllable() == c) {
+ (*i).first->stop_learning ();
+ dptr = (*i).first;
+ (*i).second.disconnect();
+
+ pending_controllables.erase (i);
+ break;
+ }
+ }
+
+ delete dptr;
+}
+
+void
+GenericMidiControlProtocol::delete_binding (PBD::Controllable* control)
+{
+ if (control != 0) {
+ Glib::Mutex::Lock lm2 (controllables_lock);
- for (list<Route*>::iterator r = routes.begin(); r != routes.end(); ++r) {
- end = (*r)->write_midi_feedback (end, bsize);
+ for (MIDIControllables::iterator iter = controllables.begin(); iter != controllables.end(); ++iter) {
+ MIDIControllable* existingBinding = (*iter);
+
+ if (control == &(existingBinding->get_controllable())) {
+ delete existingBinding;
+ controllables.erase (iter);
+ }
+
}
+ }
+}
+
+void
+GenericMidiControlProtocol::create_binding (PBD::Controllable* control, int pos, int control_number)
+{
+ if (control != NULL) {
+ Glib::Mutex::Lock lm2 (controllables_lock);
- if (end == buf) {
- return;
- }
+ MIDI::channel_t channel = (pos & 0xf);
+ MIDI::byte value = control_number;
+
+ // Create a MIDIControllable
+ MIDIControllable* mc = new MIDIControllable (*_port, *control);
+
+ // Remove any old binding for this midi channel/type/value pair
+ // Note: can't use delete_binding() here because we don't know the specific controllable we want to remove, only the midi information
+ for (MIDIControllables::iterator iter = controllables.begin(); iter != controllables.end(); ++iter) {
+ MIDIControllable* existingBinding = (*iter);
+
+ if ((existingBinding->get_control_channel() & 0xf ) == channel &&
+ existingBinding->get_control_additional() == value &&
+ (existingBinding->get_control_type() & 0xf0 ) == MIDI::controller) {
+
+ delete existingBinding;
+ controllables.erase (iter);
+ }
+
+ }
+
+ // Update the MIDI Controllable based on the the pos param
+ // Here is where a table lookup for user mappings could go; for now we'll just wing it...
+ mc->bind_midi(channel, MIDI::controller, value);
+
+ controllables.insert (mc);
+ }
+}
+
+void
+GenericMidiControlProtocol::auto_binding_on()
+{
+ auto_binding = TRUE;
+}
+
+void
+GenericMidiControlProtocol::auto_binding_off()
+{
+ auto_binding = FALSE;
+}
+
+XMLNode&
+GenericMidiControlProtocol::get_state ()
+{
+ XMLNode* node = new XMLNode ("Protocol");
+ char buf[32];
+
+ node->add_property (X_("name"), _name);
+ node->add_property (X_("feedback"), do_feedback ? "1" : "0");
+ snprintf (buf, sizeof (buf), "%" PRIu64, _feedback_interval);
+ node->add_property (X_("feedback_interval"), buf);
+
+ XMLNode* children = new XMLNode (X_("controls"));
+
+ node->add_child_nocopy (*children);
+
+ Glib::Mutex::Lock lm2 (controllables_lock);
+ for (MIDIControllables::iterator i = controllables.begin(); i != controllables.end(); ++i) {
+ children->add_child_nocopy ((*i)->get_state());
+ }
+
+ return *node;
+}
+
+int
+GenericMidiControlProtocol::set_state (const XMLNode& node, int version)
+{
+ XMLNodeList nlist;
+ XMLNodeConstIterator niter;
+ const XMLProperty* prop;
+
+ if ((prop = node.property ("feedback")) != 0) {
+ do_feedback = (bool) atoi (prop->value().c_str());
+ } else {
+ do_feedback = false;
+ }
+
+ if ((prop = node.property ("feedback_interval")) != 0) {
+ if (sscanf (prop->value().c_str(), "%" PRIu64, &_feedback_interval) != 1) {
+ _feedback_interval = 10000;
+ }
+ } else {
+ _feedback_interval = 10000;
+ }
+
+ if ( !auto_binding ) {
- // FIXME
- //_port->write (buf, (int32_t) (end - buf));
- //cerr << "MIDI feedback: wrote " << (int32_t) (end - buf) << " to midi port\n";
+ boost::shared_ptr<Controllable> c;
+
+ {
+ Glib::Mutex::Lock lm (pending_lock);
+ pending_controllables.clear ();
+ }
+
+ Glib::Mutex::Lock lm2 (controllables_lock);
+ controllables.clear ();
+ nlist = node.children(); // "controls"
+
+ if (nlist.empty()) {
+ return 0;
+ }
+
+ nlist = nlist.front()->children ();
+
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+
+ if ((prop = (*niter)->property ("id")) != 0) {
+
+ ID id = prop->value ();
+ c = session->controllable_by_id (id);
+
+ if (c) {
+ MIDIControllable* mc = new MIDIControllable (*_port, *c);
+ if (mc->set_state (**niter) == 0) {
+ controllables.insert (mc);
+ }
+
+ } else {
+ warning << string_compose (
+ _("Generic MIDI control: controllable %1 not found in session (ignored)"),
+ id) << endmsg;
+ }
+ }
+ }
}
+ return 0;
+}
+
+int
+GenericMidiControlProtocol::set_feedback (bool yn)
+{
+ do_feedback = yn;
+ last_feedback_time = 0;
+ return 0;
+}
+
+bool
+GenericMidiControlProtocol::get_feedback () const
+{
+ return do_feedback;
}
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