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OpulenZ: added pitch bend range MIDI message handling

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This commit is contained in:
Raine M. Ekman
2014-01-26 16:33:43 +02:00
parent 20700b1c71
commit 29f04d8056
2 changed files with 27 additions and 15 deletions
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34
plugins/opl2/opl2instrument.cpp
View File

@@ -168,6 +168,9 @@ opl2instrument::opl2instrument( InstrumentTrack * _instrument_track ) :
// Some kind of sane defaults
pitchbend = 0;
pitchBendRange = 100;
RPNcoarse = RPNfine = 255;
tuneEqual(69, 440);
connect( engine::mixer(), SIGNAL( sampleRateChanged() ),
@@ -257,7 +260,6 @@ void opl2instrument::setVoiceVelocity(int voice, int vel) {
theEmulator->write(0x43+adlib_opadd[voice],
( (int)op2_scale_mdl.value() & 0x03 << 6) +
( vel_adjusted & 0x3f ) );
// printf("vel %d for voice %d (%f)\n",vel_adjusted,voice,op2_lvl_mdl.value() );
}
// Pop least recently used voice - why does it sometimes lose a voice (mostly 0)?
@@ -267,10 +269,6 @@ int opl2instrument::popVoice() {
voiceLRU[i] = voiceLRU[i+1];
}
voiceLRU[8] = OPL2_NO_VOICE;
/* printf("pop: %d %d %d %d %d %d %d %d %d \n",
voiceLRU[0],voiceLRU[1],voiceLRU[2],
voiceLRU[3],voiceLRU[4],voiceLRU[5],
voiceLRU[6],voiceLRU[7],voiceLRU[8]); */
return tmp;
}
@@ -282,10 +280,6 @@ int opl2instrument::pushVoice(int v) {
}
}
voiceLRU[i] = v;
/*printf("%d %d %d %d %d %d %d %d %d \n",
voiceLRU[0],voiceLRU[1],voiceLRU[2],
voiceLRU[3],voiceLRU[4],voiceLRU[5],
voiceLRU[6],voiceLRU[7],voiceLRU[8]); */
return i;
}
@@ -309,7 +303,6 @@ bool opl2instrument::handleMidiEvent( const MidiEvent& event, const MidiTime& ti
setVoiceVelocity(voice, vel);
voiceNote[voice] = key;
velocities[key] = vel;
// printf("%d %d\n",voice,vel);
}
break;
case MidiNoteOff:
@@ -342,9 +335,8 @@ bool opl2instrument::handleMidiEvent( const MidiEvent& event, const MidiTime& ti
// tmp_pb = (2*BEND_CENTS)*((float)event.m_data.m_param[0]/16383)-BEND_CENTS;
// Something like 100 cents = 8192, but offset by 8192 so the +/-100 cents range goes from 0...16383?
tmp_pb = ( event.pitchBend()-8192 ) * BEND_CENTS / 8192;
tmp_pb = ( event.pitchBend()-8192 ) * pitchBendRange / 8192;
printf("Pitch bend: %d -> %d cents\n",event.pitchBend(),tmp_pb);
if( tmp_pb != pitchbend ) {
pitchbend = tmp_pb;
tuneEqual(69, 440.0);
@@ -357,6 +349,24 @@ bool opl2instrument::handleMidiEvent( const MidiEvent& event, const MidiTime& ti
}
}
break;
case MidiControlChange:
switch (event.controllerNumber()) {
case MidiControllerRegisteredParameterNumberLSB:
RPNfine = event.controllerValue();
break;
case MidiControllerRegisteredParameterNumberMSB:
RPNcoarse = event.controllerValue();
break;
case MidiControllerDataEntry:
if( (RPNcoarse << 8) + RPNfine == MidiPitchBendSensitivityRPN) {
pitchBendRange = event.controllerValue() * 100;
}
break;
default:
printf("Midi CC %02x %02x\n", event.controllerNumber(), event.controllerValue() );
break;
}
break;
default:
printf("Midi event type %d\n",event.type());
}

8
plugins/opl2/opl2instrument.h
View File

@@ -36,7 +36,7 @@
#define OPL2_VOICE_FREE 255
#define OPL2_NO_VOICE 255
// The "normal" range for LMMS pitchbends
#define BEND_CENTS 100
#define DEFAULT_BEND_CENTS 100
class opl2instrument : public Instrument
{
@@ -119,8 +119,7 @@ private:
int fnums[128];
// in cents, range defaults to +/-100 cents (should this be changeable?)
int pitchbend;
int pitchBendRange;
int popVoice();
int pushVoice(int v);
@@ -128,6 +127,9 @@ private:
int Hz2fnum(float Hz);
static QMutex emulatorMutex;
void setVoiceVelocity(int voice, int vel);
// Pitch bend range comes through RPNs.
int RPNcoarse, RPNfine;
};