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livetrax/libs/surfaces/faderport/faderport.cc

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/*
Copyright (C) 2015 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 <cstdlib>
#include <sstream>
#include <algorithm>
#include <stdint.h>
#include <glibmm/fileutils.h>
#include <glibmm/miscutils.h>
#include "pbd/controllable_descriptor.h"
#include "pbd/error.h"
#include "pbd/failed_constructor.h"
#include "pbd/file_utils.h"
#include "pbd/pthread_utils.h"
#include "pbd/compose.h"
#include "pbd/xml++.h"
#include "midi++/port.h"
#include "ardour/async_midi_port.h"
#include "ardour/audioengine.h"
#include "ardour/amp.h"
#include "ardour/debug.h"
#include "ardour/filesystem_paths.h"
#include "ardour/midi_port.h"
#include "ardour/midiport_manager.h"
#include "ardour/monitor_processor.h"
#include "ardour/profile.h"
#include "ardour/rc_configuration.h"
#include "ardour/route.h"
#include "ardour/session.h"
#include "ardour/session_configuration.h"
#include "ardour/track.h"
#include "faderport.h"
using namespace ARDOUR;
using namespace ArdourSurface;
using namespace PBD;
using namespace Glib;
using namespace std;
#include "i18n.h"
#include "pbd/abstract_ui.cc" // instantiate template
FaderPort::FaderPort (Session& s)
: ControlProtocol (s, _("Faderport"))
, AbstractUI<FaderPortRequest> ("faderport")
, gui (0)
, connection_state (ConnectionState (0))
, _device_active (false)
, fader_msb (0)
, fader_lsb (0)
, fader_is_touched (false)
, button_state (ButtonState (0))
, blink_state (false)
{
last_encoder_time = 0;
boost::shared_ptr<ARDOUR::Port> inp;
boost::shared_ptr<ARDOUR::Port> outp;
inp = AudioEngine::instance()->register_input_port (DataType::MIDI, "Faderport Recv", true);
outp = AudioEngine::instance()->register_output_port (DataType::MIDI, "Faderport Send", true);
_input_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(inp);
_output_port = boost::dynamic_pointer_cast<AsyncMIDIPort>(outp);
if (_input_port == 0 || _output_port == 0) {
throw failed_constructor();
}
TrackSelectionChanged.connect (selection_connection, MISSING_INVALIDATOR, boost::bind (&FaderPort::gui_track_selection_changed, this, _1), this);
/* Catch port connections and disconnections */
ARDOUR::AudioEngine::instance()->PortConnectedOrDisconnected.connect (port_connection, MISSING_INVALIDATOR, boost::bind (&FaderPort::connection_handler, this, _1, _2, _3, _4, _5), this);
buttons.insert (std::make_pair (Mute, Button (*this, _("Mute"), Mute, 21)));
buttons.insert (std::make_pair (Solo, Button (*this, _("Solo"), Solo, 22)));
buttons.insert (std::make_pair (Rec, Button (*this, _("Rec"), Rec, 23)));
buttons.insert (std::make_pair (Left, Button (*this, _("Left"), Left, 20)));
buttons.insert (std::make_pair (Bank, Button (*this, _("Bank"), Bank, 19)));
buttons.insert (std::make_pair (Right, Button (*this, _("Right"), Right, 18)));
buttons.insert (std::make_pair (Output, Button (*this, _("Output"), Output, 17)));
buttons.insert (std::make_pair (FP_Read, Button (*this, _("Read"), FP_Read, 13)));
buttons.insert (std::make_pair (FP_Write, Button (*this, _("Write"), FP_Write, 14)));
buttons.insert (std::make_pair (FP_Touch, Button (*this, _("Touch"), FP_Touch, 15)));
buttons.insert (std::make_pair (FP_Off, Button (*this, _("Off"), FP_Off, 16)));
buttons.insert (std::make_pair (Mix, Button (*this, _("Mix"), Mix, 12)));
buttons.insert (std::make_pair (Proj, Button (*this, _("Proj"), Proj, 11)));
buttons.insert (std::make_pair (Trns, Button (*this, _("Trns"), Trns, 10)));
buttons.insert (std::make_pair (Undo, Button (*this, _("Undo"), Undo, 9)));
buttons.insert (std::make_pair (Shift, Button (*this, _("Shift"), Shift, 5)));
buttons.insert (std::make_pair (Punch, Button (*this, _("Punch"), Punch, 6)));
buttons.insert (std::make_pair (User, Button (*this, _("User"), User, 7)));
buttons.insert (std::make_pair (Loop, Button (*this, _("Loop"), Loop, 8)));
buttons.insert (std::make_pair (Rewind, Button (*this, _("Rewind"), Rewind, 4)));
buttons.insert (std::make_pair (Ffwd, Button (*this, _("Ffwd"), Ffwd, 3)));
buttons.insert (std::make_pair (Stop, Button (*this, _("Stop"), Stop, 2)));
buttons.insert (std::make_pair (Play, Button (*this, _("Play"), Play, 1)));
buttons.insert (std::make_pair (RecEnable, Button (*this, _("RecEnable"), RecEnable, 0)));
buttons.insert (std::make_pair (FaderTouch, Button (*this, _("Fader (touch)"), FaderTouch, -1)));
get_button (Shift).set_flash (true);
get_button (Mix).set_flash (true);
get_button (Proj).set_flash (true);
get_button (Trns).set_flash (true);
get_button (User).set_flash (true);
get_button (Left).set_action ( boost::bind (&FaderPort::left, this), true);
get_button (Right).set_action ( boost::bind (&FaderPort::right, this), true);
get_button (Undo).set_action (boost::bind (&FaderPort::undo, this), true);
get_button (Undo).set_action (boost::bind (&FaderPort::redo, this), true, ShiftDown);
get_button (Undo).set_flash (true);
get_button (FP_Read).set_action (boost::bind (&FaderPort::read, this), true);
get_button (FP_Write).set_action (boost::bind (&FaderPort::write, this), true);
get_button (FP_Touch).set_action (boost::bind (&FaderPort::touch, this), true);
get_button (FP_Off).set_action (boost::bind (&FaderPort::off, this), true);
get_button (Play).set_action (boost::bind (&BasicUI::transport_play, this, true), true);
get_button (RecEnable).set_action (boost::bind (&BasicUI::rec_enable_toggle, this), true);
/* Stop is a modifier, so we have to use its own button state to get
the default action (since StopDown will be set when looking for the
action to invoke.
*/
get_button (Stop).set_action (boost::bind (&BasicUI::transport_stop, this), true, StopDown);
get_button (Ffwd).set_action (boost::bind (&BasicUI::ffwd, this), true);
/* See comments about Stop above .. */
get_button (Rewind).set_action (boost::bind (&BasicUI::rewind, this), true, RewindDown);
get_button (Rewind).set_action (boost::bind (&BasicUI::goto_zero, this), true, ButtonState (RewindDown|StopDown));
get_button (Rewind).set_action (boost::bind (&BasicUI::goto_start, this), true, ButtonState (RewindDown|ShiftDown));
get_button (Ffwd).set_action (boost::bind (&BasicUI::ffwd, this), true);
get_button (Ffwd).set_action (boost::bind (&BasicUI::goto_end, this), true, ShiftDown);
get_button (Punch).set_action (boost::bind (&FaderPort::punch, this), true);
get_button (Loop).set_action (boost::bind (&BasicUI::loop_toggle, this), true);
get_button (Loop).set_action (boost::bind (&BasicUI::add_marker, this, string()), true, ShiftDown);
get_button (Punch).set_action (boost::bind (&BasicUI::prev_marker, this), true, ShiftDown);
get_button (User).set_action (boost::bind (&BasicUI::next_marker, this), true, ShiftDown);
get_button (Mute).set_action (boost::bind (&FaderPort::mute, this), true);
get_button (Solo).set_action (boost::bind (&FaderPort::solo, this), true);
get_button (Rec).set_action (boost::bind (&FaderPort::rec_enable, this), true);
get_button (Output).set_action (boost::bind (&FaderPort::use_master, this), true);
get_button (Output).set_action (boost::bind (&FaderPort::use_monitor, this), true, ShiftDown);
}
FaderPort::~FaderPort ()
{
if (_input_port) {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("unregistering input port %1\n", boost::shared_ptr<ARDOUR::Port>(_input_port)->name()));
AudioEngine::instance()->unregister_port (_input_port);
_input_port.reset ();
}
if (_output_port) {
// _output_port->drain (10000); //ToDo: is this necessary? It hangs the shutdown, for me
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("unregistering output port %1\n", boost::shared_ptr<ARDOUR::Port>(_output_port)->name()));
AudioEngine::instance()->unregister_port (_output_port);
_output_port.reset ();
}
tear_down_gui ();
}
void
FaderPort::start_midi_handling ()
{
/* handle device inquiry response */
_input_port->parser()->sysex.connect_same_thread (midi_connections, boost::bind (&FaderPort::sysex_handler, this, _1, _2, _3));
/* handle buttons */
_input_port->parser()->poly_pressure.connect_same_thread (midi_connections, boost::bind (&FaderPort::button_handler, this, _1, _2));
/* handle encoder */
_input_port->parser()->pitchbend.connect_same_thread (midi_connections, boost::bind (&FaderPort::encoder_handler, this, _1, _2));
/* handle fader */
_input_port->parser()->controller.connect_same_thread (midi_connections, boost::bind (&FaderPort::fader_handler, this, _1, _2));
/* This connection means that whenever data is ready from the input
* port, the relevant thread will invoke our ::midi_input_handler()
* method, which will read the data, and invoke the parser.
*/
_input_port->xthread().set_receive_handler (sigc::bind (sigc::mem_fun (this, &FaderPort::midi_input_handler), _input_port));
_input_port->xthread().attach (main_loop()->get_context());
}
void
FaderPort::stop_midi_handling ()
{
midi_connections.drop_connections ();
/* Note: the input handler is still active at this point, but we're no
* longer connected to any of the parser signals
*/
}
void
FaderPort::do_request (FaderPortRequest* req)
{
if (req->type == CallSlot) {
call_slot (MISSING_INVALIDATOR, req->the_slot);
} else if (req->type == Quit) {
stop ();
}
}
int
FaderPort::stop ()
{
BaseUI::quit ();
return 0;
}
void
FaderPort::thread_init ()
{
struct sched_param rtparam;
pthread_set_name (X_("FaderPort"));
PBD::notify_gui_about_thread_creation (X_("gui"), pthread_self(), X_("FaderPort"), 2048);
ARDOUR::SessionEvent::create_per_thread_pool (X_("FaderPort"), 128);
memset (&rtparam, 0, sizeof (rtparam));
rtparam.sched_priority = 9; /* XXX should be relative to audio (JACK) thread */
if (pthread_setschedparam (pthread_self(), SCHED_FIFO, &rtparam) != 0) {
// do we care? not particularly.
}
}
void
FaderPort::all_lights_out ()
{
for (ButtonMap::iterator b = buttons.begin(); b != buttons.end(); ++b) {
b->second.set_led_state (_output_port, false, true);
}
}
FaderPort::Button&
FaderPort::get_button (ButtonID id) const
{
ButtonMap::const_iterator b = buttons.find (id);
assert (b != buttons.end());
return const_cast<Button&>(b->second);
}
bool
FaderPort::button_long_press_timeout (ButtonID id)
{
if (buttons_down.find (id) != buttons_down.end()) {
get_button (id).invoke (ButtonState (LongPress|button_state), false);
} else {
/* release happened and somehow we were not cancelled */
}
return false; /* don't get called again */
}
void
FaderPort::start_press_timeout (Button& button, ButtonID id)
{
Glib::RefPtr<Glib::TimeoutSource> timeout = Glib::TimeoutSource::create (500); // milliseconds
button.timeout_connection = timeout->connect (sigc::bind (sigc::mem_fun (*this, &FaderPort::button_long_press_timeout), id));
timeout->attach (main_loop()->get_context());
}
void
FaderPort::button_handler (MIDI::Parser &, MIDI::EventTwoBytes* tb)
{
ButtonID id (ButtonID (tb->controller_number));
Button& button (get_button (id));
if (tb->value) {
buttons_down.insert (id);
} else {
buttons_down.erase (id);
button.timeout_connection.disconnect ();
}
ButtonState bs (ButtonState (0));
switch (id) {
case Shift:
/* set this bit on press, do NOT clear it on release */
if (tb->value) {
bs = ShiftDown;
}
break;
case Stop:
bs = StopDown;
break;
case Rewind:
bs = RewindDown;
break;
case User:
bs = UserDown;
break;
case FaderTouch:
fader_is_touched = tb->value;
if (_current_route) {
boost::shared_ptr<AutomationControl> gain = _current_route->gain_control ();
if (gain) {
framepos_t now = session->engine().sample_time();
if (tb->value) {
gain->start_touch (now);
} else {
gain->stop_touch (true, now);
}
}
}
break;
default:
if (tb->value) {
start_press_timeout (button, id);
}
break;
}
if (bs) {
button_state = (tb->value ? ButtonState (button_state|bs) : ButtonState (button_state&~bs));
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("reset button state to %1%2 using %3%4\n", hex, button_state, bs, dec));
}
if (button.uses_flash()) {
button.set_led_state (_output_port, (int)tb->value);
}
button.invoke (button_state, tb->value ? true : false);
if (!tb->value && (id != Shift)) {
/* non-shift key was released, clear shift modifier */
button_state = ButtonState (button_state&~ShiftDown);
DEBUG_TRACE (DEBUG::FaderPort, "clear shift modifier\n");
}
}
void
FaderPort::encoder_handler (MIDI::Parser &, MIDI::pitchbend_t pb)
{
int delta = 1;
if (pb >= 8192) {
delta = -1;
}
//knob debouncing and hysteresis. The presonus encoder often sends bursts of events, or goes the wrong direction
{
last_last_encoder_delta = last_encoder_delta;
last_encoder_delta = delta;
microseconds_t now = get_microseconds ();
if ((now - last_encoder_time) < 10*1000) { //require at least 10ms interval between changes, because the device sometimes sends multiple deltas
return;
}
if ((now - last_encoder_time) < 100*1000) { //avoid directional changes while "spinning", 100ms window
if ( (delta == last_encoder_delta) && (delta == last_last_encoder_delta) ) {
last_good_encoder_delta = delta; //3 in a row, grudgingly accept this as the new direction
}
if (delta != last_good_encoder_delta) { //otherwise ensure we keep going the same way
delta = last_good_encoder_delta;
}
} else { //we aren't yet in a spin window, just assume this move is really what we want
//NOTE: if you are worried about where these get initialized, here it is.
last_last_encoder_delta = delta;
last_encoder_delta = delta;
}
last_encoder_time = now;
last_good_encoder_delta = delta;
}
if (_current_route) {
ButtonState trim_modifier;
ButtonState width_modifier;
if (Profile->get_mixbus()) {
trim_modifier = ShiftDown;
width_modifier = ButtonState (0);
} else {
trim_modifier = UserDown;
width_modifier = ShiftDown;
}
if ((button_state & trim_modifier) == trim_modifier ) { // mod+encoder = input trim
boost::shared_ptr<AutomationControl> gain = _current_route->trim()->gain_control ();
if (gain) {
float val = gain->get_user(); //for gain elements, the "user" value is in dB
val += delta;
gain->set_user(val);
}
} else if (width_modifier && ((button_state & width_modifier) == width_modifier)) {
ardour_pan_width (delta);
} else { // pan/balance
if (!Profile->get_mixbus()) {
ardour_pan_azimuth (delta);
} else {
mixbus_pan (delta);
}
}
}
}
void
FaderPort::fader_handler (MIDI::Parser &, MIDI::EventTwoBytes* tb)
{
bool was_fader = false;
if (tb->controller_number == 0x0) {
fader_msb = tb->value;
was_fader = true;
} else if (tb->controller_number == 0x20) {
fader_lsb = tb->value;
was_fader = true;
}
if (was_fader) {
if (_current_route) {
boost::shared_ptr<AutomationControl> gain = _current_route->gain_control ();
if (gain) {
int ival = (fader_msb << 7) | fader_lsb;
float val = gain->interface_to_internal (ival/16384.0);
_current_route->set_gain (val, this);
}
}
}
}
void
FaderPort::sysex_handler (MIDI::Parser &p, MIDI::byte *buf, size_t sz)
{
if (sz < 17) {
return;
}
if (buf[2] != 0x7f ||
buf[3] != 0x06 ||
buf[4] != 0x02 ||
buf[5] != 0x0 ||
buf[6] != 0x1 ||
buf[7] != 0x06 ||
buf[8] != 0x02 ||
buf[9] != 0x0 ||
buf[10] != 0x01 ||
buf[11] != 0x0) {
return;
}
_device_active = true;
DEBUG_TRACE (DEBUG::FaderPort, "FaderPort identified via MIDI Device Inquiry response\n");
/* put it into native mode */
MIDI::byte native[3];
native[0] = 0x91;
native[1] = 0x00;
native[2] = 0x64;
_output_port->write (native, 3, 0);
all_lights_out ();
/* catch up on state */
notify_transport_state_changed ();
notify_record_state_changed ();
}
int
FaderPort::set_active (bool yn)
{
DEBUG_TRACE (DEBUG::FaderPort, string_compose("MackieControlProtocol::set_active init with yn: '%1'\n", yn));
if (yn == active()) {
return 0;
}
if (yn) {
/* start event loop */
BaseUI::run ();
connect_session_signals ();
Glib::RefPtr<Glib::TimeoutSource> blink_timeout = Glib::TimeoutSource::create (200); // milliseconds
blink_connection = blink_timeout->connect (sigc::mem_fun (*this, &FaderPort::blink));
blink_timeout->attach (main_loop()->get_context());
} else {
BaseUI::quit ();
close ();
}
ControlProtocol::set_active (yn);
DEBUG_TRACE (DEBUG::FaderPort, string_compose("MackieControlProtocol::set_active done with yn: '%1'\n", yn));
return 0;
}
bool
FaderPort::blink ()
{
blink_state = !blink_state;
for (Blinkers::iterator b = blinkers.begin(); b != blinkers.end(); b++) {
get_button(*b).set_led_state (_output_port, blink_state);
}
return true;
}
void
FaderPort::close ()
{
all_lights_out ();
stop_midi_handling ();
session_connections.drop_connections ();
port_connection.disconnect ();
blink_connection.disconnect ();
selection_connection.disconnect ();
route_connections.drop_connections ();
#if 0
route_connections.drop_connections ();
#endif
}
void
FaderPort::notify_record_state_changed ()
{
switch (session->record_status()) {
case Session::Disabled:
get_button (RecEnable).set_led_state (_output_port, false);
blinkers.remove (RecEnable);
break;
case Session::Enabled:
get_button (RecEnable).set_led_state (_output_port, true);
blinkers.push_back (RecEnable);
break;
case Session::Recording:
get_button (RecEnable).set_led_state (_output_port, true);
blinkers.remove (RecEnable);
break;
}
}
void
FaderPort::notify_transport_state_changed ()
{
get_button (Loop).set_led_state (_output_port, session->get_play_loop());
get_button (Play).set_led_state (_output_port, session->transport_speed() == 1.0);
get_button (Stop).set_led_state (_output_port, session->transport_stopped ());
get_button (Rewind).set_led_state (_output_port, session->transport_speed() < 0.0);
get_button (Ffwd).set_led_state (_output_port, session->transport_speed() > 1.0);
}
void
FaderPort::parameter_changed (string what)
{
if (what == "punch-in" || what == "punch-out") {
bool in = session->config.get_punch_in ();
bool out = session->config.get_punch_out ();
if (in && out) {
get_button (Punch).set_led_state (_output_port, true);
blinkers.remove (Punch);
} else if (in || out) {
blinkers.push_back (Punch);
} else {
blinkers.remove (Punch);
}
}
}
void
FaderPort::connect_session_signals()
{
session->RecordStateChanged.connect(session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::notify_record_state_changed, this), this);
session->TransportStateChange.connect(session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::notify_transport_state_changed, this), this);
/* not session, but treat it similarly */
session->config.ParameterChanged.connect (session_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::parameter_changed, this, _1), this);
}
bool
FaderPort::midi_input_handler (Glib::IOCondition ioc, boost::shared_ptr<ARDOUR::AsyncMIDIPort> port)
{
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("something happend on %1\n", boost::shared_ptr<MIDI::Port>(port)->name()));
if (ioc & ~IO_IN) {
return false;
}
if (ioc & IO_IN) {
if (port) {
port->clear ();
}
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("data available on %1\n", boost::shared_ptr<MIDI::Port>(port)->name()));
framepos_t now = session->engine().sample_time();
port->parse (now);
}
return true;
}
XMLNode&
FaderPort::get_state ()
{
XMLNode& node (ControlProtocol::get_state());
XMLNode* child;
child = new XMLNode (X_("Input"));
child->add_child_nocopy (boost::shared_ptr<ARDOUR::Port>(_input_port)->get_state());
node.add_child_nocopy (*child);
child = new XMLNode (X_("Output"));
child->add_child_nocopy (boost::shared_ptr<ARDOUR::Port>(_output_port)->get_state());
node.add_child_nocopy (*child);
/* Save action state for Mix, Proj, Trns and User buttons, since these
* are user controlled. We can only save named-action operations, since
* internal functions are just pointers to functions and hard to
* serialize without enumerating them all somewhere.
*/
node.add_child_nocopy (get_button (Mix).get_state());
node.add_child_nocopy (get_button (Proj).get_state());
node.add_child_nocopy (get_button (Trns).get_state());
node.add_child_nocopy (get_button (User).get_state());
return node;
}
int
FaderPort::set_state (const XMLNode& node, int version)
{
XMLNodeList nlist;
XMLNodeConstIterator niter;
XMLNode const* child;
if (ControlProtocol::set_state (node, version)) {
return -1;
}
if ((child = node.child (X_("Input"))) != 0) {
XMLNode* portnode = child->child (Port::state_node_name.c_str());
if (portnode) {
boost::shared_ptr<ARDOUR::Port>(_input_port)->set_state (*portnode, version);
}
}
if ((child = node.child (X_("Output"))) != 0) {
XMLNode* portnode = child->child (Port::state_node_name.c_str());
if (portnode) {
boost::shared_ptr<ARDOUR::Port>(_output_port)->set_state (*portnode, version);
}
}
for (XMLNodeList::const_iterator n = node.children().begin(); n != node.children().end(); ++n) {
if ((*n)->name() == X_("Button")) {
XMLProperty const * prop = (*n)->property (X_("id"));
if (!prop) {
continue;
}
int xid = atoi (prop->value());
ButtonMap::iterator b = buttons.find (ButtonID (xid));
if (b == buttons.end()) {
continue;
}
b->second.set_state (**n);
}
}
return 0;
}
bool
FaderPort::connection_handler (boost::weak_ptr<ARDOUR::Port>, std::string name1, boost::weak_ptr<ARDOUR::Port>, std::string name2, bool yn)
{
if (!_input_port || !_output_port) {
return false;
}
string ni = ARDOUR::AudioEngine::instance()->make_port_name_non_relative (boost::shared_ptr<ARDOUR::Port>(_input_port)->name());
string no = ARDOUR::AudioEngine::instance()->make_port_name_non_relative (boost::shared_ptr<ARDOUR::Port>(_output_port)->name());
if (ni == name1 || ni == name2) {
if (yn) {
connection_state |= InputConnected;
} else {
connection_state &= ~InputConnected;
}
} else if (no == name1 || no == name2) {
if (yn) {
connection_state |= OutputConnected;
} else {
connection_state &= ~OutputConnected;
}
} else {
/* not our ports */
return false;
}
if ((connection_state & (InputConnected|OutputConnected)) == (InputConnected|OutputConnected)) {
/* XXX this is a horrible hack. Without a short sleep here,
something prevents the device wakeup messages from being
sent and/or the responses from being received.
*/
g_usleep (100000);
connected ();
} else {
DEBUG_TRACE (DEBUG::FaderPort, "Device disconnected (input or output or both) or not yet fully connected\n");
_device_active = false;
}
ConnectionChange (); /* emit signal for our GUI */
return true; /* connection status changed */
}
void
FaderPort::connected ()
{
DEBUG_TRACE (DEBUG::FaderPort, "connection status changed\n");
start_midi_handling ();
/* send device inquiry */
MIDI::byte buf[6];
buf[0] = 0xf0;
buf[1] = 0x7e;
buf[2] = 0x7f;
buf[3] = 0x06;
buf[4] = 0x01;
buf[5] = 0xf7;
_output_port->write (buf, 6, 0);
}
void
FaderPort::Button::invoke (FaderPort::ButtonState bs, bool press)
{
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("invoke button %1 for %2 state %3%4%5\n", id, (press ? "press":"release"), hex, bs, dec));
ToDoMap::iterator x;
if (press) {
if ((x = on_press.find (bs)) == on_press.end()) {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("no press action for button %1 state %2%3\%4\n", id, hex, bs, dec));
return;
}
} else {
if ((x = on_release.find (bs)) == on_release.end()) {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("no release action for button %1 state %2%3\%4\n", id, hex, bs, dec));
return;
}
}
switch (x->second.type) {
case NamedAction:
if (!x->second.action_name.empty()) {
fp.access_action (x->second.action_name);
}
break;
case InternalFunction:
if (x->second.function) {
x->second.function ();
}
}
}
void
FaderPort::Button::set_action (string const& name, bool when_pressed, FaderPort::ButtonState bs)
{
ToDo todo;
todo.type = NamedAction;
if (when_pressed) {
if (name.empty()) {
on_press.erase (bs);
} else {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("set button %1 to action %2 on press + %3%4%5\n", id, name, bs));
todo.action_name = name;
on_press[bs] = todo;
}
} else {
if (name.empty()) {
on_release.erase (bs);
} else {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("set button %1 to action %2 on release + %3%4%5\n", id, name, bs));
todo.action_name = name;
on_release[bs] = todo;
}
}
}
string
FaderPort::Button::get_action (bool press, FaderPort::ButtonState bs)
{
ToDoMap::iterator x;
if (press) {
if ((x = on_press.find (bs)) == on_press.end()) {
return string();
}
if (x->second.type != NamedAction) {
return string ();
}
return x->second.action_name;
} else {
if ((x = on_release.find (bs)) == on_release.end()) {
return string();
}
if (x->second.type != NamedAction) {
return string ();
}
return x->second.action_name;
}
}
void
FaderPort::Button::set_action (boost::function<void()> f, bool when_pressed, FaderPort::ButtonState bs)
{
ToDo todo;
todo.type = InternalFunction;
if (when_pressed) {
todo.function = f;
on_press[bs] = todo;
} else {
todo.function = f;
on_release[bs] = todo;
}
}
void
FaderPort::Button::set_led_state (boost::shared_ptr<MIDI::Port> port, int onoff, bool force)
{
if (!force && (led_on == (bool) onoff)) {
/* nothing to do */
return;
}
if (out < 0) {
/* fader button ID - no LED */
return;
}
MIDI::byte buf[3];
buf[0] = 0xa0;
buf[1] = out;
buf[2] = onoff ? 1 : 0;
port->write (buf, 3, 0);
led_on = (onoff ? true : false);
}
int
FaderPort::Button::set_state (XMLNode const& node)
{
const XMLProperty* prop = node.property ("id");
if (!prop) {
return -1;
}
int xid = atoi (prop->value());
if (xid != id) {
return -1;
}
typedef pair<string,FaderPort::ButtonState> state_pair_t;
vector<state_pair_t> state_pairs;
state_pairs.push_back (make_pair (string ("plain"), ButtonState (0)));
state_pairs.push_back (make_pair (string ("shift"), ShiftDown));
state_pairs.push_back (make_pair (string ("long"), LongPress));
on_press.clear ();
on_release.clear ();
for (vector<state_pair_t>::const_iterator sp = state_pairs.begin(); sp != state_pairs.end(); ++sp) {
string propname;
propname = sp->first + X_("-press");
if ((prop = node.property (propname)) != 0) {
set_action (prop->value(), true, sp->second);
}
propname = sp->first + X_("-release");
if ((prop = node.property (propname)) != 0) {
set_action (prop->value(), false, sp->second);
}
}
return 0;
}
XMLNode&
FaderPort::Button::get_state () const
{
XMLNode* node = new XMLNode (X_("Button"));
char buf[16];
snprintf (buf, sizeof (buf), "%d", id);
node->add_property (X_("id"), buf);
ToDoMap::const_iterator x;
ToDo null;
null.type = NamedAction;
typedef pair<string,FaderPort::ButtonState> state_pair_t;
vector<state_pair_t> state_pairs;
state_pairs.push_back (make_pair (string ("plain"), ButtonState (0)));
state_pairs.push_back (make_pair (string ("shift"), ShiftDown));
state_pairs.push_back (make_pair (string ("long"), LongPress));
for (vector<state_pair_t>::const_iterator sp = state_pairs.begin(); sp != state_pairs.end(); ++sp) {
if ((x = on_press.find (sp->second)) != on_press.end()) {
if (x->second.type == NamedAction) {
node->add_property (string (sp->first + X_("-press")).c_str(), x->second.action_name);
}
}
if ((x = on_release.find (sp->second)) != on_release.end()) {
if (x->second.type == NamedAction) {
node->add_property (string (sp->first + X_("-release")).c_str(), x->second.action_name);
}
}
}
return *node;
}
void
FaderPort::gui_track_selection_changed (RouteNotificationListPtr routes)
{
boost::shared_ptr<Route> r;
if (!routes->empty()) {
r = routes->front().lock();
}
set_current_route (r);
}
void
FaderPort::drop_current_route ()
{
if (_current_route) {
if (_current_route == session->monitor_out()) {
set_current_route (session->master_out());
} else {
set_current_route (boost::shared_ptr<Route>());
}
}
}
void
FaderPort::set_current_route (boost::shared_ptr<Route> r)
{
route_connections.drop_connections ();
_current_route = r;
/* turn this off. It will be turned on back on in use_master() or
use_monitor() as appropriate.
*/
get_button(Output).set_led_state (_output_port, false);
if (_current_route) {
_current_route->DropReferences.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::drop_current_route, this), this);
_current_route->mute_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_mute, this, _1), this);
_current_route->solo_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_solo, this, _1, _2, _3), this);
_current_route->listen_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_listen, this, _1, _2), this);
boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (_current_route);
if (t) {
t->RecordEnableChanged.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_recenable, this), this);
}
boost::shared_ptr<AutomationControl> control = _current_route->gain_control ();
if (control) {
control->Changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_gain, this), this);
control->alist()->automation_state_changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_auto, this), this);
}
boost::shared_ptr<MonitorProcessor> mp = _current_route->monitor_control();
if (mp) {
mp->cut_control()->Changed.connect (route_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_cut, this), this);
}
}
//ToDo: subscribe to the fader automation modes so we can light the LEDs
map_route_state ();
}
void
FaderPort::map_auto ()
{
boost::shared_ptr<AutomationControl> control = _current_route->gain_control ();
const AutoState as = control->automation_state ();
switch (as) {
case ARDOUR::Play:
get_button (FP_Read).set_led_state (_output_port, true);
get_button (FP_Write).set_led_state (_output_port, false);
get_button (FP_Touch).set_led_state (_output_port, false);
get_button (FP_Off).set_led_state (_output_port, false);
break;
case ARDOUR::Write:
get_button (FP_Read).set_led_state (_output_port, false);
get_button (FP_Write).set_led_state (_output_port, true);
get_button (FP_Touch).set_led_state (_output_port, false);
get_button (FP_Off).set_led_state (_output_port, false);
break;
case ARDOUR::Touch:
get_button (FP_Read).set_led_state (_output_port, false);
get_button (FP_Write).set_led_state (_output_port, false);
get_button (FP_Touch).set_led_state (_output_port, true);
get_button (FP_Off).set_led_state (_output_port, false);
break;
case ARDOUR::Off:
get_button (FP_Read).set_led_state (_output_port, false);
get_button (FP_Write).set_led_state (_output_port, false);
get_button (FP_Touch).set_led_state (_output_port, false);
get_button (FP_Off).set_led_state (_output_port, true);
break;
}
}
void
FaderPort::map_cut ()
{
boost::shared_ptr<MonitorProcessor> mp = _current_route->monitor_control();
if (mp) {
bool yn = mp->cut_all ();
get_button (Mute).set_led_state (_output_port, yn);
if (yn) {
blinkers.push_back (Mute);
} else {
blinkers.remove (Mute);
}
} else {
blinkers.remove (Mute);
}
}
void
FaderPort::map_mute (void*)
{
get_button (Mute).set_led_state (_output_port, _current_route->muted());
}
void
FaderPort::map_solo (bool, void*, bool)
{
get_button (Solo).set_led_state (_output_port, _current_route->soloed() || _current_route->listening_via_monitor());
}
void
FaderPort::map_listen (void*, bool)
{
get_button (Solo).set_led_state (_output_port, _current_route->listening_via_monitor());
}
void
FaderPort::map_recenable ()
{
boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (_current_route);
if (t) {
get_button (Rec).set_led_state (_output_port, t->record_enabled());
} else {
get_button (Rec).set_led_state (_output_port, false);
}
}
void
FaderPort::map_gain ()
{
if (fader_is_touched) {
/* Do not send fader moves while the user is touching the fader */
return;
}
if (!_current_route) {
return;
}
boost::shared_ptr<AutomationControl> control = _current_route->gain_control ();
double val;
if (!control) {
val = 0.0;
} else {
val = control->internal_to_interface (control->get_value ());
}
/* Faderport sends fader position with range 0..16384 (though some of
* the least-significant bits at the top end are missing - it may only
* get to 1636X or so).
*
* But ... position must be sent in the range 0..1023.
*
* Thanks, Obama.
*/
int ival = (int) lrintf (val * 1023.0);
/* MIDI normalization requires that we send two separate messages here,
* not one single 6 byte one.
*/
MIDI::byte buf[3];
buf[0] = 0xb0;
buf[1] = 0x0;
buf[2] = ival >> 7;
_output_port->write (buf, 3, 0);
buf[1] = 0x20;
buf[2] = ival & 0x7f;
_output_port->write (buf, 3, 0);
}
void
FaderPort::map_route_state ()
{
if (!_current_route) {
get_button (Mute).set_led_state (_output_port, false);
get_button (Solo).set_led_state (_output_port, false);
get_button (Rec).set_led_state (_output_port, false);
blinkers.remove (Mute);
blinkers.remove (Solo);
} else {
/* arguments to these map_*() methods are all ignored */
map_mute (0);
map_solo (false, 0, false);
map_recenable ();
map_gain ();
map_cut ();
map_auto ();
}
}
boost::shared_ptr<Port>
FaderPort::output_port()
{
return _output_port;
}
boost::shared_ptr<Port>
FaderPort::input_port()
{
return _input_port;
}
void
FaderPort::set_action (ButtonID id, std::string const& action_name, bool on_press, ButtonState bs)
{
get_button(id).set_action (action_name, on_press, bs);
}
string
FaderPort::get_action (ButtonID id, bool press, ButtonState bs)
{
return get_button(id).get_action (press, bs);
}
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