*/
-#define __STDC_FORMAT_MACROS 1
#include <stdint.h>
#include <cmath>
#include <climits>
#include <iostream>
#include "pbd/error.h"
-#include "pbd/controllable_descriptor.h"
#include "pbd/xml++.h"
+#include "pbd/stacktrace.h"
+#include "pbd/compose.h"
+#include "midi++/types.h" // Added by JE - 06-01-2009. All instances of 'byte' changed to 'MIDI::byte' (for clarification)
#include "midi++/port.h"
#include "midi++/channel.h"
+#include "ardour/async_midi_port.h"
#include "ardour/automation_control.h"
+#include "ardour/controllable_descriptor.h"
+#include "ardour/midi_ui.h"
#include "ardour/utils.h"
+#include "ardour/debug.h"
#include "midicontrollable.h"
+#include "generic_midi_control_protocol.h"
using namespace std;
using namespace MIDI;
using namespace PBD;
using namespace ARDOUR;
-MIDIControllable::MIDIControllable (Port& p, bool m)
- : controllable (0)
+MIDIControllable::MIDIControllable (GenericMidiControlProtocol* s, MIDI::Parser& p, bool m)
+ : _surface (s)
+ , controllable (0)
, _descriptor (0)
- , _port (p)
+ , _parser (p)
, _momentary (m)
{
_learned = false; /* from URI */
+ _encoder = No_enc;
setting = false;
last_value = 0; // got a better idea ?
+ last_controllable_value = 0.0f;
control_type = none;
+ control_rpn = -1;
+ control_nrpn = -1;
_control_description = "MIDI Control: none";
- control_additional = (byte) -1;
+ control_additional = (MIDI::byte) -1;
feedback = true; // for now
}
-MIDIControllable::MIDIControllable (Port& p, Controllable& c, bool m)
- : controllable (&c)
+MIDIControllable::MIDIControllable (GenericMidiControlProtocol* s, MIDI::Parser& p, Controllable& c, bool m)
+ : _surface (s)
, _descriptor (0)
- , _port (p)
+ , _parser (p)
, _momentary (m)
{
+ set_controllable (&c);
+
_learned = true; /* from controllable */
+ _encoder = No_enc;
setting = false;
last_value = 0; // got a better idea ?
+ last_controllable_value = 0.0f;
control_type = none;
+ control_rpn = -1;
+ control_nrpn = -1;
_control_description = "MIDI Control: none";
- control_additional = (byte) -1;
+ control_additional = (MIDI::byte) -1;
feedback = true; // for now
}
MIDIControllable::drop_external_control ()
{
midi_forget ();
+ control_rpn = -1;
+ control_nrpn = -1;
control_type = none;
- control_additional = (byte) -1;
+ control_additional = (MIDI::byte) -1;
}
void
MIDIControllable::set_controllable (Controllable* c)
{
+ if (c == controllable) {
+ return;
+ }
+
+ controllable_death_connection.disconnect ();
+
controllable = c;
+
+ if (controllable) {
+ last_controllable_value = controllable->get_value();
+ } else {
+ last_controllable_value = 0.0f; // is there a better value?
+ }
+
+ if (controllable) {
+ controllable->Destroyed.connect (controllable_death_connection, MISSING_INVALIDATOR,
+ boost::bind (&MIDIControllable::drop_controllable, this, _1),
+ MidiControlUI::instance());
+ }
}
void
MIDIControllable::learn_about_external_control ()
{
drop_external_control ();
- _port.parser()->any.connect_same_thread (midi_learn_connection, boost::bind (&MIDIControllable::midi_receiver, this, _1, _2, _3));
+ _parser.any.connect_same_thread (midi_learn_connection, boost::bind (&MIDIControllable::midi_receiver, this, _1, _2, _3));
}
void
midi_learn_connection.disconnect ();
}
-float
+int
MIDIControllable::control_to_midi (float val)
{
- const float midi_range = 127.0f; // TODO: NRPN etc.
-
if (controllable->is_gain_like()) {
- return gain_to_slider_position (val/midi_range);
+ return gain_to_slider_position (val) * max_value_for_type ();
}
float control_min = controllable->lower ();
float control_max = controllable->upper ();
- const float control_range = control_max - control_min;
+ float control_range = control_max - control_min;
- return (val - control_min) / control_range * midi_range;
+ if (controllable->is_toggle()) {
+ if (val >= (control_min + (control_range/2.0f))) {
+ return max_value_for_type();
+ } else {
+ return 0;
+ }
+ } else {
+ AutomationControl *actl = dynamic_cast<AutomationControl*> (controllable);
+ if (actl) {
+ control_min = actl->internal_to_interface(control_min);
+ control_max = actl->internal_to_interface(control_max);
+ control_range = control_max - control_min;
+ val = actl->internal_to_interface(val);
+ }
+ }
+ // fiddle value of max so value doesn't jump from 125 to 127 for 1.0
+ // otherwise decrement won't work.
+ return (val - control_min) / control_range * (max_value_for_type () - 1);
}
float
-MIDIControllable::midi_to_control(float val)
+MIDIControllable::midi_to_control (int val)
{
- const float midi_range = 127.0f; // TODO: NRPN etc.
+ /* fiddle with MIDI value so that we get an odd number of integer steps
+ and can thus represent "middle" precisely as 0.5. this maps to
+ the range 0..+1.0 (0 to 126)
+ */
- if (controllable->is_gain_like()) {
- return slider_position_to_gain (val/midi_range);
- }
+ float fv = (val == 0 ? 0 : float (val - 1) / (max_value_for_type() - 1));
+
+ if (controllable->is_gain_like()) {
+ return controllable->interface_to_internal (fv);
+ }
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Raw value %1 float %2\n", val, fv));
float control_min = controllable->lower ();
float control_max = controllable->upper ();
- const float control_range = control_max - control_min;
-
- return val / midi_range * control_range + control_min;
+ float control_range = control_max - control_min;
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Min %1 Max %2 Range %3\n", control_min, control_max, control_range));
+
+ AutomationControl *actl = dynamic_cast<AutomationControl*> (controllable);
+ if (actl) {
+ if (fv == 0.f) return control_min;
+ if (fv == 1.f) return control_max;
+ control_min = actl->internal_to_interface(control_min);
+ control_max = actl->internal_to_interface(control_max);
+ control_range = control_max - control_min;
+ return actl->interface_to_internal((fv * control_range) + control_min);
+ }
+ return (fv * control_range) + control_min;
}
void
midi_sense_note (p, tb, false);
}
+int
+MIDIControllable::lookup_controllable()
+{
+ if (!_descriptor) {
+ return -1;
+ }
+
+ boost::shared_ptr<Controllable> c = _surface->lookup_controllable (*_descriptor);
+
+ if (!c) {
+ return -1;
+ }
+
+ set_controllable (c.get ());
+
+ return 0;
+}
+
void
-MIDIControllable::midi_sense_note (Parser &, EventTwoBytes *msg, bool /*is_on*/)
+MIDIControllable::drop_controllable (Controllable* c)
{
- if (!controllable) {
- return;
+ if (c == controllable) {
+ set_controllable (0);
}
+}
+void
+MIDIControllable::midi_sense_note (Parser &, EventTwoBytes *msg, bool /*is_on*/)
+{
+ if (!controllable) {
+ if (lookup_controllable()) {
+ return;
+ }
+ }
if (!controllable->is_toggle()) {
- controllable->set_value (msg->note_number/127.0);
+ if (control_additional == msg->note_number) {
+ controllable->set_value (midi_to_control (msg->velocity), Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Note %1 value %2 %3\n", (int) msg->note_number, (float) midi_to_control (msg->velocity), current_uri() ));
+ }
} else {
-
if (control_additional == msg->note_number) {
- controllable->set_value (controllable->get_value() > 0.5f ? 0.0f : 1.0f);
+ float new_value = controllable->get_value() > 0.5f ? 0.0f : 1.0f;
+ controllable->set_value (new_value, Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Note %1 Value %2 %3\n", (int) msg->note_number, (float) new_value, current_uri()));
}
}
void
MIDIControllable::midi_sense_controller (Parser &, EventTwoBytes *msg)
{
- if (!controllable) {
- return;
+ if (!controllable) {
+ if (lookup_controllable ()) {
+ return;
+ }
}
+ assert (controllable);
+
if (controllable->touching()) {
return; // to prevent feedback fights when e.g. dragging a UI slider
}
if (control_additional == msg->controller_number) {
if (!controllable->is_toggle()) {
- controllable->set_value (midi_to_control (msg->value));
- } else {
- if (msg->value > 64.0f) {
- controllable->set_value (1);
+ if (get_encoder() == No_enc) {
+ float new_value = msg->value;
+ float max_value = max(last_controllable_value, new_value);
+ float min_value = min(last_controllable_value, new_value);
+ float range = max_value - min_value;
+ float threshold = (float) _surface->threshold ();
+
+ bool const in_sync = (
+ range < threshold &&
+ controllable->get_value() <= midi_to_control(max_value) &&
+ controllable->get_value() >= midi_to_control(min_value)
+ );
+
+ /* If the surface is not motorised, we try to prevent jumps when
+ the MIDI controller and controllable are out of sync.
+ There might be a better way of doing this.
+ */
+
+ if (in_sync || _surface->motorised ()) {
+ controllable->set_value (midi_to_control (new_value), Controllable::NoGroup);
+ }
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI CC %1 value %2 %3\n", (int) msg->controller_number, (float) midi_to_control(new_value), current_uri() ));
+
+ last_controllable_value = new_value;
} else {
- controllable->set_value (0);
+ int offset = (msg->value & 0x3f);
+ switch (get_encoder()) {
+ case Enc_L:
+ if (msg->value > 0x40) {
+ controllable->set_value (midi_to_control (last_value - offset + 1), Controllable::NoGroup);
+ } else {
+ controllable->set_value (midi_to_control (last_value + offset + 1), Controllable::NoGroup);
+ }
+ break;
+ case Enc_R:
+ if (msg->value > 0x40) {
+ controllable->set_value (midi_to_control (last_value + offset + 1), Controllable::NoGroup);
+ } else {
+ controllable->set_value (midi_to_control (last_value - offset + 1), Controllable::NoGroup);
+ }
+ break;
+ case Enc_2:
+ if (msg->value > 0x40) {
+ controllable->set_value (midi_to_control (last_value - (0x7f - msg->value) + 1), Controllable::NoGroup);
+ } else {
+ controllable->set_value (midi_to_control (last_value + offset + 1), Controllable::NoGroup);
+ }
+ break;
+ case Enc_B:
+ if (msg->value > 0x40) {
+ controllable->set_value (midi_to_control (last_value + offset + 1), Controllable::NoGroup);
+ } else {
+ controllable->set_value (midi_to_control (last_value - (0x40 - offset)), Controllable::NoGroup);
+ }
+ break;
+ default:
+ break;
+ }
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI CC %1 value %2 %3\n", (int) msg->controller_number, (int) last_value, current_uri() ));
+
+ }
+ } else {
+
+ /* toggle control: make the toggle flip only if the
+ * incoming control value exceeds 0.5 (0x40), so that
+ * the typical button which sends "CC N=0x7f" on press
+ * and "CC N=0x0" on release can be used to drive
+ * toggles on press.
+ *
+ * No other arrangement really makes sense for a toggle
+ * controllable. Acting on the press+release makes the
+ * action momentary, which is almost never
+ * desirable. If the physical button only sends a
+ * message on press (or release), then it will be
+ * expected to send a controller value >= 0.5
+ * (0x40). It is hard to imagine why anyone would make
+ * a MIDI controller button that sent 0x0 when pressed.
+ */
+
+ if (msg->value >= 0x40) {
+ controllable->set_value (controllable->get_value() >= 0.5 ? 0.0 : 1.0, Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Midi CC %1 value 1 %2\n", (int) msg->controller_number, current_uri()));
}
}
}
void
-MIDIControllable::midi_sense_program_change (Parser &, byte msg)
+MIDIControllable::midi_sense_program_change (Parser &, MIDI::byte msg)
{
- if (!controllable) {
- return;
+ if (!controllable) {
+ if (lookup_controllable ()) {
+ return;
+ }
}
+ if (msg == control_additional) {
- if (!controllable->is_toggle()) {
- controllable->set_value (msg/127.0);
- } else {
- controllable->set_value (controllable->get_value() > 0.5f ? 0.0f : 1.0f);
+ if (!controllable->is_toggle()) {
+ controllable->set_value (1.0, Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI program %1 value 1.0 %3\n", (int) msg, current_uri() ));
+ } else {
+ float new_value = controllable->get_value() > 0.5f ? 0.0f : 1.0f;
+ controllable->set_value (new_value, Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI program %1 value %2 %3\n", (int) msg, (float) new_value, current_uri()));
+ }
}
last_value = (MIDI::byte) (controllable->get_value() * 127.0); // to prevent feedback fights
void
MIDIControllable::midi_sense_pitchbend (Parser &, pitchbend_t pb)
{
- if (!controllable) {
- return;
+ if (!controllable) {
+ if (lookup_controllable ()) {
+ return;
+ }
}
if (!controllable->is_toggle()) {
- /* XXX gack - get rid of assumption about typeof pitchbend_t */
- controllable->set_value ((pb/(float) SHRT_MAX));
+ controllable->set_value (midi_to_control (pb), Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI pitchbend %1 value %2 %3\n", (int) control_channel, (float) midi_to_control (pb), current_uri() ));
} else {
- controllable->set_value (controllable->get_value() > 0.5f ? 0.0f : 1.0f);
+ if (pb > 8065.0f) {
+ controllable->set_value (1, Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Midi pitchbend %1 value 1 %2\n", (int) control_channel, current_uri()));
+ } else {
+ controllable->set_value (0, Controllable::NoGroup);
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Midi pitchbend %1 value 0 %2\n", (int) control_channel, current_uri()));
+ }
}
- last_value = (MIDI::byte) (controllable->get_value() * 127.0); // to prevent feedback fights
+ last_value = control_to_midi (controllable->get_value ());
}
void
-MIDIControllable::midi_receiver (Parser &, byte *msg, size_t /*len*/)
+MIDIControllable::midi_receiver (Parser &, MIDI::byte *msg, size_t /*len*/)
{
/* we only respond to channel messages */
return;
}
- /* if the our port doesn't do input anymore, forget it ... */
+ _surface->check_used_event(msg[0], msg[1]);
+ bind_midi ((channel_t) (msg[0] & 0xf), eventType (msg[0] & 0xF0), msg[1]);
- if (!_port.parser()) {
- return;
+ if (controllable) {
+ controllable->LearningFinished ();
}
+}
- bind_midi ((channel_t) (msg[0] & 0xf), eventType (msg[0] & 0xF0), msg[1]);
+void
+MIDIControllable::rpn_value_change (Parser&, uint16_t rpn, float val)
+{
+ if (control_rpn == rpn) {
+ if (controllable) {
+ controllable->set_value (val, Controllable::NoGroup);
+ }
+ }
+}
- controllable->LearningFinished ();
+void
+MIDIControllable::nrpn_value_change (Parser&, uint16_t nrpn, float val)
+{
+ if (control_nrpn == nrpn) {
+ if (controllable) {
+ controllable->set_value (val, Controllable::NoGroup);
+ }
+ }
+}
+
+void
+MIDIControllable::rpn_change (Parser&, uint16_t rpn, int dir)
+{
+ if (control_rpn == rpn) {
+ if (controllable) {
+ /* XXX how to increment/decrement ? */
+ // controllable->set_value (val);
+ }
+ }
+}
+
+void
+MIDIControllable::nrpn_change (Parser&, uint16_t nrpn, int dir)
+{
+ if (control_nrpn == nrpn) {
+ if (controllable) {
+ /* XXX how to increment/decrement ? */
+ // controllable->set_value (val);
+ }
+ }
+}
+
+void
+MIDIControllable::bind_rpn_value (channel_t chn, uint16_t rpn)
+{
+ int chn_i = chn;
+ drop_external_control ();
+ control_rpn = rpn;
+ control_channel = chn;
+ _parser.channel_rpn[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::rpn_value_change, this, _1, _2, _3));
+}
+
+void
+MIDIControllable::bind_nrpn_value (channel_t chn, uint16_t nrpn)
+{
+ int chn_i = chn;
+ drop_external_control ();
+ control_nrpn = nrpn;
+ control_channel = chn;
+ _parser.channel_nrpn[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::rpn_value_change, this, _1, _2, _3));
+}
+
+void
+MIDIControllable::bind_nrpn_change (channel_t chn, uint16_t nrpn)
+{
+ int chn_i = chn;
+ drop_external_control ();
+ control_nrpn = nrpn;
+ control_channel = chn;
+ _parser.channel_nrpn_change[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::rpn_change, this, _1, _2, _3));
+}
+
+void
+MIDIControllable::bind_rpn_change (channel_t chn, uint16_t rpn)
+{
+ int chn_i = chn;
+ drop_external_control ();
+ control_rpn = rpn;
+ control_channel = chn;
+ _parser.channel_rpn_change[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::nrpn_change, this, _1, _2, _3));
}
void
control_channel = chn;
control_additional = additional;
- if (_port.parser() == 0) {
- return;
- }
-
- Parser& p = *_port.parser();
-
int chn_i = chn;
switch (ev) {
case MIDI::off:
- p.channel_note_off[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_note_off, this, _1, _2));
+ _parser.channel_note_off[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_note_off, this, _1, _2));
/* if this is a togglee, connect to noteOn as well,
and we'll toggle back and forth between the two.
*/
if (_momentary) {
- p.channel_note_on[chn_i].connect_same_thread (midi_sense_connection[1], boost::bind (&MIDIControllable::midi_sense_note_on, this, _1, _2));
- }
+ _parser.channel_note_on[chn_i].connect_same_thread (midi_sense_connection[1], boost::bind (&MIDIControllable::midi_sense_note_on, this, _1, _2));
+ }
_control_description = "MIDI control: NoteOff";
break;
case MIDI::on:
- p.channel_note_on[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_note_on, this, _1, _2));
+ _parser.channel_note_on[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_note_on, this, _1, _2));
if (_momentary) {
- p.channel_note_off[chn_i].connect_same_thread (midi_sense_connection[1], boost::bind (&MIDIControllable::midi_sense_note_off, this, _1, _2));
+ _parser.channel_note_off[chn_i].connect_same_thread (midi_sense_connection[1], boost::bind (&MIDIControllable::midi_sense_note_off, this, _1, _2));
}
_control_description = "MIDI control: NoteOn";
break;
-
+
case MIDI::controller:
- p.channel_controller[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_controller, this, _1, _2));
+ _parser.channel_controller[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_controller, this, _1, _2));
snprintf (buf, sizeof (buf), "MIDI control: Controller %d", control_additional);
_control_description = buf;
break;
case MIDI::program:
- p.channel_program_change[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_program_change, this, _1, _2));
+ _parser.channel_program_change[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_program_change, this, _1, _2));
_control_description = "MIDI control: ProgramChange";
break;
case MIDI::pitchbend:
- p.channel_pitchbend[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_pitchbend, this, _1, _2));
+ _parser.channel_pitchbend[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIControllable::midi_sense_pitchbend, this, _1, _2));
_control_description = "MIDI control: Pitchbend";
break;
default:
break;
}
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Controlable: bind_midi: %1 on Channel %2 value %3 \n", _control_description, chn_i + 1, (int) additional));
}
-void
-MIDIControllable::send_feedback ()
+MIDI::byte*
+MIDIControllable::write_feedback (MIDI::byte* buf, int32_t& bufsize, bool /*force*/)
{
- byte msg[3];
-
- if (!_learned || setting || !feedback || control_type == none) {
- return;
+ if (!controllable || !feedback) {
+ return buf;
}
- msg[0] = (control_type & 0xF0) | (control_channel & 0xF);
- msg[1] = control_additional;
+ float val = controllable->get_value ();
- if (controllable->is_gain_like()) {
- msg[2] = (byte) lrintf (gain_to_slider_position (controllable->get_value()) * 127.0f);
- } else {
- msg[2] = (byte) (control_to_midi(controllable->get_value()));
+ /* Note that when sending RPN/NPRN we do two things:
+ *
+ * always send MSB first, then LSB
+ * null/reset the parameter ID after sending.
+ *
+ * this follows recommendations found online, eg. http://www.philrees.co.uk/nrpnq.htm
+ */
+
+ if (control_rpn >= 0) {
+ if (bufsize < 13) {
+ return buf;
+ }
+ int rpn_val = (int) lrintf (val * 16384.0);
+ if (last_value == rpn_val) {
+ return buf;
+ }
+ *buf++ = (0xb0) | control_channel;
+ *buf++ = 0x62;
+ *buf++ = (int) ((control_rpn) >> 7);
+ *buf++ = 0x63;
+ *buf++ = (int) (control_rpn & 0x7f);
+ *buf++ = 0x06;
+ *buf++ = (int) (rpn_val >> 7);
+ *buf++ = 0x26;
+ *buf++ = (int) (rpn_val & 0x7f);
+ *buf++ = 0x62;
+ *buf++ = 0x7f;
+ *buf++ = 0x63;
+ *buf++ = 0x7f;
+ bufsize -= 13;
+ last_value = rpn_val;
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI out: RPN %1 Channel %2 Value %3\n", control_rpn, (int) control_channel, val));
+ return buf;
}
- _port.write (msg, 3, 0);
-}
+ if (control_nrpn >= 0) {
+ int rpn_val = (int) lrintf (val * 16384.0);
+ if (last_value == rpn_val) {
+ return buf;
+ }
+ *buf++ = (0xb0) | control_channel;
+ *buf++ = 0x64;
+ *buf++ = (int) ((control_rpn) >> 7);
+ *buf++ = 0x65;
+ *buf++ = (int) (control_rpn & 0x7f);
+ *buf++ = 0x06;
+ *buf++ = (int) (rpn_val >> 7);
+ *buf++ = 0x26;
+ *buf++ = (int) (rpn_val & 0x7f);
+ *buf++ = 0x64;
+ *buf++ = 0x7f;
+ *buf++ = 0x65;
+ *buf++ = 0x7f;
+ last_value = rpn_val;
+ bufsize -= 13;
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI out: NRPN %1 Channel %2 Value %3\n", control_nrpn, (int) control_channel, val));
+ return buf;
+ }
-MIDI::byte*
-MIDIControllable::write_feedback (MIDI::byte* buf, int32_t& bufsize, bool /*force*/)
-{
- if (control_type != none && feedback && bufsize > 2) {
+ if (control_type == none || bufsize <= 2) {
+ return buf;
+ }
- MIDI::byte gm;
+ int const gm = control_to_midi (val);
- if (controllable->is_gain_like()) {
- gm = (byte) lrintf (gain_to_slider_position (controllable->get_value()) * 127.0f);
- } else {
- gm = (byte) (control_to_midi(controllable->get_value()));
- }
+ if (gm == last_value) {
+ return buf;
+ }
- if (gm != last_value) {
- *buf++ = (0xF0 & control_type) | (0xF & control_channel);
- *buf++ = control_additional; /* controller number */
- *buf++ = gm;
- last_value = gm;
- bufsize -= 3;
- }
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("Feedback: %1 %2\n", control_description(), current_uri()));
+
+ *buf++ = (0xF0 & control_type) | (0xF & control_channel);
+ int ev_size = 3;
+ switch (control_type) {
+ case MIDI::pitchbend:
+ *buf++ = int (gm) & 127;
+ *buf++ = (int (gm) >> 7) & 127;
+ break;
+ case MIDI::program:
+ *buf++ = control_additional; /* program number */
+ ev_size = 2;
+ break;
+ default:
+ *buf++ = control_additional; /* controller number */
+ *buf++ = gm;
+ break;
}
+ DEBUG_TRACE (DEBUG::GenericMidi, string_compose ("MIDI out: Type %1 Channel %2 Bytes %3 %4\n", (int) control_type, (int) control_channel , (int) *(buf - 2), (int) *(buf - 1)));
+
+ last_value = gm;
+ bufsize -= ev_size;
return buf;
}
XMLNode* node = new XMLNode ("MIDIControllable");
- if (!_current_uri.empty()) {
+ if (_current_uri.empty()) {
+ node->add_property ("id", controllable->id().to_s());
+ } else {
node->add_property ("uri", _current_uri);
- }
+ }
if (controllable) {
snprintf (buf, sizeof(buf), "0x%x", (int) control_type);
return *node;
}
+/** @return the maximum value for a control value transmitted
+ * using a given MIDI::eventType.
+ */
+int
+MIDIControllable::max_value_for_type () const
+{
+ /* XXX: this is not complete */
+
+ if (control_type == MIDI::pitchbend) {
+ return 16383;
+ }
+
+ return 127;
+}
projects / ardour.git / blobdiff