13
0
livetrax/libs/surfaces/faderport/faderport.cc
Paul Davis 3f8d0ddc3d faderport: fix SNAFU caused by switching to Mixbus-style use of user button
User stopped being a modifier but was still being treated as one.
2024-07-23 18:21:43 -06:00

1143 lines
31 KiB
C++

/*
* Copyright (C) 2015-2018 Ben Loftis <ben@harrisonconsoles.com>
* Copyright (C) 2015-2018 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2016-2019 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <cstdlib>
#include <sstream>
#include <algorithm>
#include <stdint.h>
#include <glibmm/fileutils.h>
#include <glibmm/miscutils.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/bundle.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/record_enable_control.h"
#include "ardour/stripable.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 "pbd/i18n.h"
#include "pbd/abstract_ui.cc" // instantiate template
FaderPort::FaderPort (Session& s)
: MIDISurface (s, X_("PreSonus FaderPort"), X_("FaderPort"), false)
, gui (0)
, fader_msb (0)
, fader_lsb (0)
, fader_is_touched (false)
, button_state (ButtonState (0))
, blink_state (false)
, rec_enable_state (false)
{
last_encoder_time = 0;
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 (Footswitch, Button (*this, _("Footswitch"), Footswitch, -1)));
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_Read).set_action (boost::bind (&FaderPort::off, this), false, LongPress);
get_button (FP_Write).set_action (boost::bind (&FaderPort::write, this), true);
get_button (FP_Write).set_action (boost::bind (&FaderPort::off, this), false, LongPress);
get_button (FP_Touch).set_action (boost::bind (&FaderPort::touch, this), true);
get_button (FP_Touch).set_action (boost::bind (&FaderPort::off, this), false, LongPress);
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, false), 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);
run_event_loop ();
port_setup ();
}
FaderPort::~FaderPort ()
{
all_lights_out ();
MIDISurface::drop ();
tear_down_gui ();
/* stop event loop */
DEBUG_TRACE (DEBUG::FaderPort, "BaseUI::quit ()\n");
BaseUI::quit ();
}
void
FaderPort::all_lights_out ()
{
for (ButtonMap::iterator b = buttons.begin(); b != buttons.end(); ++b) {
b->second.set_led_state (false);
}
}
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()) {
if (get_button (id).invoke (ButtonState (LongPress|button_state), false)) {
/* whichever button this was, we've used it ... don't invoke the
release action.
*/
consumed.insert (id);
}
} 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::handle_midi_polypressure_message (MIDI::Parser &, MIDI::EventTwoBytes* tb)
{
ButtonID id (ButtonID (tb->controller_number));
Button& button (get_button (id));
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("button event for ID %1 press ? %2\n", (int) tb->controller_number, (tb->value ? "yes" : "no")));
if (tb->value) {
buttons_down.insert (id);
} else {
buttons_down.erase (id);
button.timeout_connection.disconnect ();
}
ButtonState bs (ButtonState (0));
switch (id) {
case Shift:
bs = ShiftDown;
break;
case Stop:
bs = StopDown;
break;
case Rewind:
bs = RewindDown;
break;
case FaderTouch:
fader_is_touched = tb->value;
if (_current_stripable) {
std::shared_ptr<AutomationControl> gain = _current_stripable->gain_control ();
if (gain) {
timepos_t now = timepos_t (session->engine().sample_time());
if (tb->value) {
gain->start_touch (now);
} else {
gain->stop_touch (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 using %2\n", button_state, (int) bs));
}
if (button.uses_flash()) {
button.set_led_state ((int)tb->value);
}
set<ButtonID>::iterator c = consumed.find (id);
if (c == consumed.end()) {
(void) button.invoke (button_state, tb->value ? true : false);
} else {
DEBUG_TRACE (DEBUG::FaderPort, "button was consumed, ignored\n");
consumed.erase (c);
}
}
void
FaderPort::handle_midi_pitchbend_message (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_stripable) {
ButtonState trim_modifier;
ButtonState width_modifier;
trim_modifier = ShiftDown;
width_modifier = ButtonState (0);
if ((button_state & trim_modifier) == trim_modifier ) { // mod+encoder = input trim
std::shared_ptr<AutomationControl> trim = _current_stripable->trim_control ();
if (trim) {
float val = accurate_coefficient_to_dB (trim->get_value());
val += delta * .5f; // use 1/2 dB Steps -20..+20
trim->set_value (dB_to_coefficient (val), Controllable::UseGroup);
}
} else if (width_modifier && ((button_state & width_modifier) == width_modifier)) {
pan_width (delta);
} else { // pan/balance
pan_azimuth (delta);
}
}
}
void
FaderPort::handle_midi_controller_message (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_stripable) {
std::shared_ptr<AutomationControl> gain = _current_stripable->gain_control ();
if (gain) {
int ival = (fader_msb << 7) | fader_lsb;
float val = gain->interface_to_internal (ival/16383.0);
/* even though the faderport only controls a
single stripable at a time, allow the fader to
modify the group, if appropriate.
*/
_current_stripable->gain_control()->set_value (val, Controllable::UseGroup);
}
}
}
}
void
FaderPort::handle_midi_sysex (MIDI::Parser &p, MIDI::byte *buf, size_t sz)
{
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("sysex message received, size = %1\n", 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;
}
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;
MIDISurface::write (native, 3);
all_lights_out ();
/* catch up on state */
/* make sure that rec_enable_state is consistent with current device state */
get_button (RecEnable).set_led_state (rec_enable_state);
map_transport_state ();
map_recenable_state ();
}
int
FaderPort::set_active (bool yn)
{
DEBUG_TRACE (DEBUG::FaderPort, string_compose("Faderport::set_active init with yn: '%1' while active = %2\n", yn, active()));
if (yn == active()) {
return 0;
}
if (yn) {
if (device_acquire ()) {
return -1;
}
} else {
/* Control Protocol Manager never calls us with false, but
* insteads destroys us.
*/
}
ControlProtocol::set_active (yn);
DEBUG_TRACE (DEBUG::FaderPort, string_compose("Faderport::set_active done with yn: '%1'\n", yn));
return 0;
}
bool
FaderPort::periodic ()
{
if (!_current_stripable) {
return true;
}
ARDOUR::AutoState gain_state = _current_stripable->gain_control()->automation_state();
if (gain_state == ARDOUR::Touch || gain_state == ARDOUR::Play) {
map_gain ();
}
return true;
}
void
FaderPort::stop_blinking (ButtonID id)
{
blinkers.remove (id);
get_button (id).set_led_state (false);
}
void
FaderPort::start_blinking (ButtonID id)
{
blinkers.push_back (id);
get_button (id).set_led_state (true);
}
bool
FaderPort::blink ()
{
blink_state = !blink_state;
for (Blinkers::iterator b = blinkers.begin(); b != blinkers.end(); b++) {
get_button(*b).set_led_state (blink_state);
}
map_recenable_state ();
return true;
}
void
FaderPort::map_recenable_state ()
{
/* special case for RecEnable because its status can change as a
* confluence of unrelated parameters: (a) session rec-enable state (b)
* rec-enabled tracks. So we don't add the button to the blinkers list,
* we just call this:
*
* * from the blink callback
* * when the session tells us about a status change
*
* We do the last one so that the button changes state promptly rather
* than waiting for the next blink callback. The change in "blinking"
* based on having record-enabled tracks isn't urgent, and that happens
* during the blink callback.
*/
bool onoff;
switch (session->record_status()) {
case Session::Disabled:
onoff = false;
break;
case Session::Enabled:
onoff = blink_state;
break;
case Session::Recording:
if (session->have_rec_enabled_track ()) {
onoff = true;
} else {
onoff = blink_state;
}
break;
default:
return; /* stupid compilers */
}
if (onoff != rec_enable_state) {
get_button(RecEnable).set_led_state (onoff);
rec_enable_state = onoff;
}
}
void
FaderPort::map_transport_state ()
{
get_button (Loop).set_led_state (session->get_play_loop());
float ts = get_transport_speed();
if (ts == 0) {
stop_blinking (Play);
} else if (fabs (ts) == 1.0) {
stop_blinking (Play);
get_button (Play).set_led_state (true);
} else {
start_blinking (Play);
}
get_button (Stop).set_led_state (stop_button_onoff());
get_button (Rewind).set_led_state (rewind_button_onoff ());
get_button (Ffwd).set_led_state (ffwd_button_onoff());
}
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 (true);
blinkers.remove (Punch);
} else if (in || out) {
start_blinking (Punch);
} else {
stop_blinking (Punch);
}
}
}
XMLNode&
FaderPort::get_state () const
{
XMLNode& node (MIDISurface::get_state());
/* 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());
node.add_child_nocopy (get_button (Footswitch).get_state());
return node;
}
int
FaderPort::set_state (const XMLNode& node, int version)
{
XMLNodeList nlist;
if (MIDISurface::set_state (node, version)) {
return -1;
}
for (XMLNodeList::const_iterator n = node.children().begin(); n != node.children().end(); ++n) {
if ((*n)->name() == X_("Button")) {
int32_t xid;
if (!(*n)->get_property (X_("id"), xid)) {
continue;
}
ButtonMap::iterator b = buttons.find (ButtonID (xid));
if (b == buttons.end()) {
continue;
}
b->second.set_state (**n);
}
}
return 0;
}
std::string
FaderPort::input_port_name () const
{
#ifdef __APPLE__
/* the origin of the numeric magic identifiers is known only to Ableton
and may change in time. This is part of how CoreMIDI works.
*/
return X_("system:midi_capture_1319078870");
#else
return X_("FaderPort MIDI 1 (in)");
#endif
}
std::string
FaderPort::output_port_name () const
{
#ifdef __APPLE__
/* the origin of the numeric magic identifiers is known only to Ableton
and may change in time. This is part of how CoreMIDI works.
*/
return X_("system:midi_playback_3409210341");
#else
return X_("FaderPort MIDI 1 (out)");
#endif
}
void
FaderPort::run_event_loop ()
{
DEBUG_TRACE (DEBUG::FaderPort, "start event loop\n");
BaseUI::run ();
}
void
FaderPort::stop_event_loop ()
{
DEBUG_TRACE (DEBUG::FaderPort, "stop event loop\n");
BaseUI::quit ();
}
int
FaderPort::begin_using_device()
{
DEBUG_TRACE (DEBUG::FaderPort, "begin using device\n");
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());
Glib::RefPtr<Glib::TimeoutSource> periodic_timeout = Glib::TimeoutSource::create (100); // milliseconds
periodic_connection = periodic_timeout->connect (sigc::mem_fun (*this, &FaderPort::periodic));
periodic_timeout->attach (main_loop()->get_context());
if (MIDISurface::begin_using_device ()) {
return -1;
}
DEBUG_TRACE (DEBUG::FaderPort, "sending device inquiry message...\n");
/* 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;
MIDISurface::write (buf, 6);
return 0;
}
int
FaderPort::stop_using_device ()
{
blink_connection.disconnect ();
selection_connection.disconnect ();
stripable_connections.drop_connections ();
periodic_connection.disconnect ();
return 0;
}
bool
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 in %4\n", id, bs, this, &on_press));
return false;
}
} 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 in %4\n", id, bs, this, &on_release));
return false;
}
}
switch (x->second.type) {
case NamedAction:
if (!x->second.action_name.empty()) {
fp.access_action (x->second.action_name);
return true;
}
break;
case InternalFunction:
if (x->second.function) {
x->second.function ();
return true;
}
}
return false;
}
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\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\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) {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("set button %1 (%2) @ %5 to some functor on press + %3 in %4\n", id, name, bs, &on_press, this));
todo.function = f;
on_press[bs] = todo;
} else {
DEBUG_TRACE (DEBUG::FaderPort, string_compose ("set button %1 (%2) @ %5 to some functor on release + %3\n", id, name, bs, this));
todo.function = f;
on_release[bs] = todo;
}
}
void
FaderPort::Button::set_led_state (bool onoff)
{
if (out < 0) {
/* fader button ID - no LED */
return;
}
MIDI::byte buf[3];
buf[0] = 0xa0;
buf[1] = out;
buf[2] = onoff ? 1 : 0;
/* C++ can be irritating */
MIDISurface* ms (&fp);
ms->write (buf, 3);
}
int
FaderPort::Button::set_state (XMLNode const& node)
{
int32_t xid;
if (!node.get_property ("id", xid) || 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));
for (vector<state_pair_t>::const_iterator sp = state_pairs.begin(); sp != state_pairs.end(); ++sp) {
string propname = sp->first + X_("-press");
string value;
if (node.get_property (propname.c_str(), value)) {
set_action (value, true, sp->second);
}
propname = sp->first + X_("-release");
if (node.get_property (propname.c_str(), value)) {
set_action (value, false, sp->second);
}
}
return 0;
}
XMLNode&
FaderPort::Button::get_state () const
{
XMLNode* node = new XMLNode (X_("Button"));
node->set_property (X_("id"), to_string<int32_t>(id));
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->set_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->set_property (string (sp->first + X_("-release")).c_str(), x->second.action_name);
}
}
}
return *node;
}
void
FaderPort::stripable_selection_changed ()
{
set_current_stripable (ControlProtocol::first_selected_stripable());
}
void
FaderPort::drop_current_stripable ()
{
if (_current_stripable) {
if (_current_stripable == session->monitor_out()) {
set_current_stripable (session->master_out());
} else {
set_current_stripable (std::shared_ptr<Stripable>());
}
}
}
void
FaderPort::set_current_stripable (std::shared_ptr<Stripable> r)
{
stripable_connections.drop_connections ();
_current_stripable = 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 (false);
if (_current_stripable) {
_current_stripable->DropReferences.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::drop_current_stripable, this), this);
_current_stripable->mute_control()->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_mute, this), this);
_current_stripable->solo_control()->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_solo, this), this);
std::shared_ptr<Track> t = std::dynamic_pointer_cast<Track> (_current_stripable);
if (t) {
t->rec_enable_control()->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_recenable, this), this);
}
std::shared_ptr<AutomationControl> control = _current_stripable->gain_control ();
if (control) {
control->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_gain, this), this);
control->alist()->automation_state_changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_auto, this), this);
}
std::shared_ptr<MonitorProcessor> mp = _current_stripable->monitor_control();
if (mp) {
mp->cut_control()->Changed.connect (stripable_connections, MISSING_INVALIDATOR, boost::bind (&FaderPort::map_cut, this), this);
}
}
//ToDo: subscribe to the fader automation modes so we can light the LEDs
map_stripable_state ();
}
void
FaderPort::map_auto ()
{
/* Under no circumstances send a message to "enable" the LED state of
* the Off button, because this will disable the fader.
*/
std::shared_ptr<AutomationControl> control = _current_stripable->gain_control ();
const AutoState as = control->automation_state ();
switch (as) {
case ARDOUR::Play:
get_button (FP_Read).set_led_state (true);
get_button (FP_Write).set_led_state (false);
get_button (FP_Touch).set_led_state (false);
break;
case ARDOUR::Write:
get_button (FP_Read).set_led_state (false);
get_button (FP_Write).set_led_state (true);
get_button (FP_Touch).set_led_state (false);
break;
case ARDOUR::Touch:
case ARDOUR::Latch: // XXX
get_button (FP_Read).set_led_state (false);
get_button (FP_Write).set_led_state (false);
get_button (FP_Touch).set_led_state (true);
break;
case ARDOUR::Off:
get_button (FP_Read).set_led_state (false);
get_button (FP_Write).set_led_state (false);
get_button (FP_Touch).set_led_state (false);
break;
}
}
void
FaderPort::map_cut ()
{
std::shared_ptr<MonitorProcessor> mp = _current_stripable->monitor_control();
if (mp) {
bool yn = mp->cut_all ();
if (yn) {
start_blinking (Mute);
} else {
stop_blinking (Mute);
}
} else {
stop_blinking (Mute);
}
}
void
FaderPort::map_mute ()
{
if (_current_stripable) {
if (_current_stripable->mute_control()->muted()) {
stop_blinking (Mute);
get_button (Mute).set_led_state (true);
} else if (_current_stripable->mute_control()->muted_by_others_soloing () || _current_stripable->mute_control()->muted_by_masters()) {
start_blinking (Mute);
} else {
stop_blinking (Mute);
}
} else {
stop_blinking (Mute);
}
}
void
FaderPort::map_solo ()
{
if (_current_stripable) {
get_button (Solo).set_led_state (_current_stripable->solo_control()->soloed());
} else {
get_button (Solo).set_led_state (false);
}
}
void
FaderPort::map_recenable ()
{
std::shared_ptr<Track> t = std::dynamic_pointer_cast<Track> (_current_stripable);
if (t) {
get_button (Rec).set_led_state (t->rec_enable_control()->get_value());
} else {
get_button (Rec).set_led_state (false);
}
}
void
FaderPort::map_gain ()
{
if (fader_is_touched) {
/* Do not send fader moves while the user is touching the fader */
return;
}
if (!_current_stripable) {
return;
}
std::shared_ptr<AutomationControl> control = _current_stripable->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;
MIDISurface::write (buf, 3);
buf[1] = 0x20;
buf[2] = ival & 0x7f;
MIDISurface::write (buf, 3);
}
void
FaderPort::map_stripable_state ()
{
if (!_current_stripable) {
stop_blinking (Mute);
stop_blinking (Solo);
get_button (Rec).set_led_state (false);
} else {
map_solo ();
map_recenable ();
map_gain ();
map_auto ();
if (_current_stripable == session->monitor_out()) {
map_cut ();
} else {
map_mute ();
}
}
}
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);
}
void
FaderPort::notify_record_state_changed ()
{
map_recenable_state ();
}
void
FaderPort::notify_transport_state_changed()
{
map_transport_state ();
}
void
FaderPort::notify_loop_state_changed ()
{
map_transport_state ();
}