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livetrax/libs/surfaces/generic_midi/midifunction.cc

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/*
Copyright (C) 2009 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 <cstring>
#include "midi++/port.h"
#include "midifunction.h"
#include "generic_midi_control_protocol.h"
using namespace MIDI;
MIDIFunction::MIDIFunction (MIDI::Port& p)
: _port (p)
{
sysex_size = 0;
sysex = 0;
}
MIDIFunction::~MIDIFunction ()
{
delete [] sysex;
}
int
MIDIFunction::init (GenericMidiControlProtocol& ui, const std::string& function_name, MIDI::byte* sysex_data, size_t sysex_sz)
{
if (strcasecmp (function_name.c_str(), "transport-stop") == 0) {
_function = TransportStop;
} else if (strcasecmp (function_name.c_str(), "transport-roll") == 0) {
_function = TransportRoll;
} else if (strcasecmp (function_name.c_str(), "transport-zero") == 0) {
_function = TransportZero;
} else if (strcasecmp (function_name.c_str(), "transport-start") == 0) {
_function = TransportStart;
} else if (strcasecmp (function_name.c_str(), "transport-end") == 0) {
_function = TransportEnd;
} else if (strcasecmp (function_name.c_str(), "loop-toggle") == 0) {
_function = TransportLoopToggle;
} else if (strcasecmp (function_name.c_str(), "rec-enable") == 0) {
_function = TransportRecordEnable;
} else if (strcasecmp (function_name.c_str(), "rec-disable") == 0) {
_function = TransportRecordDisable;
} else if (strcasecmp (function_name.c_str(), "next-bank") == 0) {
_function = NextBank;
} else if (strcasecmp (function_name.c_str(), "prev-bank") == 0) {
_function = PrevBank;
} else {
return -1;
}
_ui = &ui;
if (sysex_sz) {
/* we take ownership of the sysex data */
sysex = sysex_data;
sysex_size = sysex_sz;
}
return 0;
}
void
MIDIFunction::execute ()
{
switch (_function) {
case NextBank:
_ui->next_bank();
break;
case PrevBank:
_ui->prev_bank();
break;
case TransportStop:
_ui->transport_stop ();
break;
case TransportRoll:
_ui->transport_play ();
break;
case TransportStart:
_ui->goto_start ();
break;
case TransportZero:
// need this in BasicUI
break;
case TransportEnd:
_ui->goto_end ();
break;
case TransportLoopToggle:
_ui->loop_toggle ();
break;
case TransportRecordEnable:
_ui->set_record_enable (true);
break;
case TransportRecordDisable:
_ui->set_record_enable (false);
break;
}
}
void
MIDIFunction::midi_sense_note_on (Parser &p, EventTwoBytes *tb)
{
midi_sense_note (p, tb, true);
}
void
MIDIFunction::midi_sense_note_off (Parser &p, EventTwoBytes *tb)
{
midi_sense_note (p, tb, false);
}
void
MIDIFunction::midi_sense_note (Parser &, EventTwoBytes *msg, bool /* is_on */)
{
if (msg->note_number == control_additional) {
execute ();
}
}
void
MIDIFunction::midi_sense_controller (Parser &, EventTwoBytes *msg)
{
if (control_additional == msg->controller_number) {
execute ();
}
}
void
MIDIFunction::midi_sense_program_change (Parser &, byte msg)
{
if (msg == control_additional) {
execute ();
}
}
void
MIDIFunction::midi_sense_sysex (Parser &, byte* msg, size_t sz)
{
if (sz != sysex_size) {
return;
}
if (memcmp (msg, sysex, sysex_size) != 0) {
return;
}
execute ();
}
void
MIDIFunction::bind_midi (channel_t chn, eventType ev, MIDI::byte additional)
{
midi_sense_connection[0].disconnect ();
midi_sense_connection[1].disconnect ();
control_type = ev;
control_channel = chn;
control_additional = additional;
if (_port.input() == 0) {
return;
}
Parser& p = *_port.input();
int chn_i = chn;
/* incoming MIDI is parsed by Ardour' MidiUI event loop/thread, and we want our handlers to execute in that context, so we use
Signal::connect_same_thread() here.
*/
switch (ev) {
case MIDI::off:
p.channel_note_off[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIFunction::midi_sense_note_off, this, _1, _2));
break;
case MIDI::on:
p.channel_note_on[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIFunction::midi_sense_note_on, this, _1, _2));
break;
case MIDI::controller:
p.channel_controller[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIFunction::midi_sense_controller, this, _1, _2));
break;
case MIDI::program:
p.channel_program_change[chn_i].connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIFunction::midi_sense_program_change, this, _1, _2));
break;
case MIDI::sysex:
p.sysex.connect_same_thread (midi_sense_connection[0], boost::bind (&MIDIFunction::midi_sense_sysex, this, _1, _2, _3));
break;
default:
break;
}
}
XMLNode&
MIDIFunction::get_state ()
{
XMLNode* node = new XMLNode ("MIDIFunction");
return *node;
}
int
MIDIFunction::set_state (const XMLNode& node, int version)
{
return 0;
}