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Custom percussion instruments for the AdLib MIDI driver (Slightly modified patch #2357165)

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svn-id: r35439
This commit is contained in:
Jordi Vilalta Prat 2008-12-19 16:21:27 +00:00
parent 519815cb51
commit c4f33dfb86
1 changed files with 60 additions and 6 deletions
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64
sound/softsynth/adlib.cpp
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@ -143,13 +143,14 @@ protected:
void init(MidiDriver_ADLIB *owner, byte channel);
public:
~AdlibPercussionChannel();
void noteOff(byte note);
void noteOn(byte note, byte velocity);
void programChange(byte program) { }
void pitchBend(int16 bend) { }
// Control Change messages
void controlChange(byte control, byte value) { }
void modulationWheel(byte value) { }
void pitchBendFactor(byte value) { }
void detune(byte value) { }
@ -157,7 +158,11 @@ public:
void sustain(bool value) { }
// SysEx messages
void sysEx_customInstrument(uint32 type, const byte *instr) { }
void sysEx_customInstrument(uint32 type, const byte *instr);
private:
byte _notes[256];
AdlibInstrument *_customInstruments[256];
};
struct Struct10 {
@ -775,10 +780,20 @@ void AdlibPart::sysEx_customInstrument(uint32 type, const byte *instr) {
// MidiChannel method implementations for percussion
AdlibPercussionChannel::~AdlibPercussionChannel() {
for (int i = 0; i < ARRAYSIZE(_customInstruments); ++i) {
delete _customInstruments[i];
}
}
void AdlibPercussionChannel::init(MidiDriver_ADLIB *owner, byte channel) {
AdlibPart::init(owner, channel);
_pri_eff = 0;
_vol_eff = 127;
// Initialize the custom instruments data
memset(_notes, 0, sizeof(_notes));
memset(_customInstruments, 0, sizeof(_customInstruments));
}
void AdlibPercussionChannel::noteOff(byte note) {
@ -797,12 +812,51 @@ void AdlibPercussionChannel::noteOff(byte note) {
}
void AdlibPercussionChannel::noteOn(byte note, byte velocity) {
AdlibInstrument *inst = NULL;
// The custom instruments have priority over the default mapping
inst = _customInstruments[note];
if (inst)
note = _notes[note];
if (!inst) {
// Use the default GM to FM mapping as a fallback as a fallback
byte key = gm_percussion_lookup[note];
if (key == 0xFF) {
debug(2, "No FM map for GM percussion key %d", (int) note);
if (key != 0xFF)
inst = (AdlibInstrument *)&gm_percussion_to_fm[key];
}
if (!inst) {
debug(2, "No instrument FM definition for GM percussion key %d", (int)note);
return;
}
_owner->part_key_on(this, (AdlibInstrument *) &gm_percussion_to_fm[key], note, velocity);
_owner->part_key_on(this, inst, note, velocity);
}
void AdlibPercussionChannel::sysEx_customInstrument(uint32 type, const byte *instr) {
if (type == 'ADLP') {
byte note = instr[0];
_notes[note] = instr[1];
// Allocate memory for the new instruments
if (!_customInstruments[note]) {
_customInstruments[note] = new AdlibInstrument;
}
// Save the new instrument data
_customInstruments[note]->mod_characteristic = instr[2];
_customInstruments[note]->mod_scalingOutputLevel = instr[3];
_customInstruments[note]->mod_attackDecay = instr[4];
_customInstruments[note]->mod_sustainRelease = instr[5];
_customInstruments[note]->mod_waveformSelect = instr[6];
_customInstruments[note]->car_characteristic = instr[7];
_customInstruments[note]->car_scalingOutputLevel = instr[8];
_customInstruments[note]->car_attackDecay = instr[9];
_customInstruments[note]->car_sustainRelease = instr[10];
_customInstruments[note]->car_waveformSelect = instr[11];
_customInstruments[note]->feedback = instr[12];
}
}
// MidiDriver method implementations