Channel::Channel (MIDI::byte channelnum, Port &p)
: _port (p)
+ , _channel_number (channelnum)
+ , _rpn_msb (0)
+ , _rpn_lsb (0)
+ , _nrpn_msb (0)
+ , _nrpn_lsb (0)
+ , _rpn_state (RPNState (0))
+ , _nrpn_state (RPNState (0))
{
- _channel_number = channelnum;
-
reset (0, 1, false);
-}
+}
void
Channel::connect_signals ()
_controller_14bit[n] = false;
}
- _rpn_msb = 0;
- _rpn_lsb = 0;
- _nrpn_msb = 0;
- _nrpn_lsb = 0;
+ rpn_reset ();
+ nrpn_reset ();
_omni = true;
_poly = false;
_notes_on = 0;
}
+void
+Channel::rpn_reset ()
+{
+ _rpn_msb = 0;
+ _rpn_lsb = 0;
+ _rpn_val_msb = 0;
+ _rpn_val_lsb = 0;
+ _rpn_state = RPNState (0);
+}
+
+void
+Channel::nrpn_reset ()
+{
+ _nrpn_msb = 0;
+ _nrpn_lsb = 0;
+ _nrpn_val_msb = 0;
+ _nrpn_val_lsb = 0;
+ _nrpn_state = RPNState (0);
+}
+
void
Channel::process_note_off (Parser & /*parser*/, EventTwoBytes *tb)
{
_notes_on++;
}
+const Channel::RPNState Channel::RPN_READY_FOR_VALUE = RPNState (HaveLSB|HaveMSB);
+const Channel::RPNState Channel::RPN_VALUE_READY = RPNState (HaveLSB|HaveMSB|HaveValue);
+
+bool
+Channel::maybe_process_rpns (Parser& parser, EventTwoBytes *tb)
+{
+ switch (tb->controller_number) {
+ case 0x62:
+ _rpn_state = RPNState (_rpn_state|HaveMSB);
+ _rpn_lsb = tb->value;
+ if (_rpn_msb == 0x7f && _rpn_lsb == 0x7f) {
+ rpn_reset ();
+ }
+ return true;
+ case 0x63:
+ _rpn_state = RPNState (_rpn_state|HaveLSB);
+ _rpn_msb = tb->value;
+ if (_rpn_msb == 0x7f && _rpn_lsb == 0x7f) {
+ rpn_reset ();
+ }
+ return true;
+
+ case 0x64:
+ _nrpn_state = RPNState (_rpn_state|HaveMSB);
+ _rpn_lsb = tb->value;
+ if (_nrpn_msb == 0x7f && _nrpn_lsb == 0x7f) {
+ nrpn_reset ();
+ }
+ return true;
+ case 0x65:
+ _nrpn_state = RPNState (_rpn_state|HaveLSB);
+ _rpn_msb = tb->value;
+ if (_rpn_msb == 0x7f && _rpn_lsb == 0x7f) {
+ nrpn_reset ();
+ }
+ return true;
+ }
+
+ if ((_nrpn_state & RPN_READY_FOR_VALUE) == RPN_READY_FOR_VALUE) {
+
+ uint16_t rpn_id = (_rpn_msb << 7)|_rpn_lsb;
+
+ switch (tb->controller_number) {
+ case 0x60:
+ /* data increment */
+ _nrpn_state = RPNState (_nrpn_state|HaveValue);
+ parser.channel_nrpn_change[_channel_number] (parser, rpn_id, 1); /* EMIT SIGNAL */
+ return true;
+ case 0x61:
+ /* data decrement */
+ _nrpn_state = RPNState (_nrpn_state|HaveValue);
+ parser.channel_nrpn_change[_channel_number] (parser, rpn_id, -1); /* EMIT SIGNAL */
+ return true;
+ case 0x06:
+ /* data entry MSB */
+ _nrpn_state = RPNState (_nrpn_state|HaveValue);
+ _nrpn_val_msb = tb->value;
+ break;
+ case 0x26:
+ /* data entry LSB */
+ _nrpn_state = RPNState (_nrpn_state|HaveValue);
+ _nrpn_val_lsb = tb->value;
+ }
+
+ if (_nrpn_state == RPN_VALUE_READY) {
+
+ float rpn_val = ((_rpn_val_msb << 7)|_rpn_val_lsb)/16384.0;
+
+ std::pair<RPNList::iterator,bool> result = nrpns.insert (std::make_pair (rpn_id, rpn_val));
+
+ if (!result.second) {
+ result.first->second = rpn_val;
+ }
+
+ parser.channel_nrpn[_channel_number] (parser, rpn_id, rpn_val); /* EMIT SIGNAL */
+ return true;
+ }
+
+ } else if ((_rpn_state & RPN_READY_FOR_VALUE) == RPN_READY_FOR_VALUE) {
+
+ uint16_t rpn_id = (_rpn_msb << 7)|_rpn_lsb;
+
+ switch (tb->controller_number) {
+ case 0x60:
+ /* data increment */
+ _rpn_state = RPNState (_rpn_state|HaveValue);
+ parser.channel_rpn_change[_channel_number] (parser, rpn_id, 1); /* EMIT SIGNAL */
+ return true;
+ case 0x61:
+ /* data decrement */
+ _rpn_state = RPNState (_rpn_state|HaveValue);
+ parser.channel_rpn_change[_channel_number] (parser, rpn_id, -1); /* EMIT SIGNAL */
+ return true;
+ case 0x06:
+ /* data entry MSB */
+ _rpn_state = RPNState (_rpn_state|HaveValue);
+ _rpn_val_msb = tb->value;
+ break;
+ case 0x26:
+ /* data entry LSB */
+ _rpn_state = RPNState (_rpn_state|HaveValue);
+ _rpn_val_lsb = tb->value;
+ }
+
+ if (_rpn_state == RPN_VALUE_READY) {
+
+ float rpn_val = ((_rpn_val_msb << 7)|_rpn_val_lsb)/16384.0;
+
+ std::pair<RPNList::iterator,bool> result = rpns.insert (std::make_pair (rpn_id, rpn_val));
+
+ if (!result.second) {
+ result.first->second = rpn_val;
+ }
+
+ parser.channel_rpn[_channel_number] (parser, rpn_id, rpn_val); /* EMIT SIGNAL */
+ return true;
+ }
+ }
+
+ return false;
+}
+
void
-Channel::process_controller (Parser & /*parser*/, EventTwoBytes *tb)
+Channel::process_controller (Parser & parser, EventTwoBytes *tb)
{
unsigned short cv;
all changes *are* atomic.
*/
+ if (maybe_process_rpns (parser, tb)) {
+ return;
+ }
+
+ /* Note: if RPN data controllers (0x60, 0x61, 0x6, 0x26) are received
+ * without a previous RPN parameter ID message, or after the RPN ID
+ * has been reset, they will be treated like ordinary CC messages.
+ */
+
+
if (tb->controller_number < 32) { /* unsigned: no test for >= 0 */
/* if this controller is already known to use 14 bits,
} else if ((tb->controller_number >= 32 &&
tb->controller_number <= 63)) {
-
+
int cn = tb->controller_number - 32;
cv = (unsigned short) _controller_val[cn];
high 7.
*/
-
+
if (_controller_14bit[cn] == false) {
_controller_14bit[cn] = true;
cv = (cv << 7) | (tb->value & 0x7f);
} else {
/* controller can only take 7 bit values */
-
+
_controller_val[tb->controller_number] =
(controller_value_t) tb->value;
}
return _port.midimsg (msg, len, timestamp);
}
+
+float
+Channel::rpn_value (uint16_t rpn) const
+{
+ return rpn_value_absolute (rpn) / 16384.0f;
+}
+
+float
+Channel::rpn_value_absolute (uint16_t rpn) const
+{
+ RPNList::const_iterator r = rpns.find (rpn);
+ if (r == rpns.end()) {
+ return 0.0;
+ }
+ return r->second;
+}
+
+float
+Channel::nrpn_value (uint16_t nrpn) const
+{
+ return nrpn_value_absolute (nrpn) / 16384.0f;
+}
+
+float
+Channel::nrpn_value_absolute (uint16_t nrpn) const
+{
+ RPNList::const_iterator r = nrpns.find (nrpn);
+ if (r == nrpns.end()) {
+ return 0.0;
+ }
+ return r->second;
+}
projects / ardour.git / blobdiff